vl.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "hw/hw.h"
  25 #include "hw/boards.h"
  26 #include "hw/usb.h"
  27 #include "hw/pcmcia.h"
  28 #include "hw/pc.h"
  29 #include "hw/audiodev.h"
  30 #include "hw/isa.h"
  31 #include "hw/baum.h"
  32 #include "net.h"
  33 #include "console.h"
  34 #include "sysemu.h"
  35 #include "gdbstub.h"
  36 #include "qemu-timer.h"
  37 #include "qemu-char.h"
  38 #include "block.h"
  39 #include "audio/audio.h"
  40
  41 #include <unistd.h>
  42 #include <fcntl.h>
  43 #include <signal.h>
  44 #include <time.h>
  45 #include <errno.h>
  46 #include <sys/time.h>
  47 #include <zlib.h>
  48
  49 #ifndef _WIN32
  50 #include <sys/times.h>
  51 #include <sys/wait.h>
  52 #include <termios.h>
  53 #include <sys/poll.h>
  54 #include <sys/mman.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/socket.h>
  57 #include <netinet/in.h>
  58 #include <dirent.h>
  59 #include <netdb.h>
  60 #include <sys/select.h>
  61 #include <arpa/inet.h>
  62 #ifdef _BSD
  63 #include <sys/stat.h>
  64 #ifndef __APPLE__
  65 #include <libutil.h>
  66 #endif
  67 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
  68 #include <freebsd/stdlib.h>
  69 #else
  70 #ifndef __sun__
  71 #include <linux/if.h>
  72 #include <linux/if_tun.h>
  73 #include <pty.h>
  74 #include <malloc.h>
  75 #include <linux/rtc.h>
  76
  77 /* For the benefit of older linux systems which don't supply it,
  78    we use a local copy of hpet.h. */
  79 /* #include <linux/hpet.h> */
  80 #include "hpet.h"
  81
  82 #include <linux/ppdev.h>
  83 #include <linux/parport.h>
  84 #else
  85 #include <sys/stat.h>
  86 #include <sys/ethernet.h>
  87 #include <sys/sockio.h>
  88 #include <netinet/arp.h>
  89 #include <netinet/in.h>
  90 #include <netinet/in_systm.h>
  91 #include <netinet/ip.h>
  92 #include <netinet/ip_icmp.h> // must come after ip.h
  93 #include <netinet/udp.h>
  94 #include <netinet/tcp.h>
  95 #include <net/if.h>
  96 #include <syslog.h>
  97 #include <stropts.h>
  98 #endif
  99 #endif
 100 #else
 101 #include <winsock2.h>
 102 int inet_aton(const char *cp, struct in_addr *ia);
 103 #endif
 104
 105 #if defined(CONFIG_SLIRP)
 106 #include "libslirp.h"
 107 #endif
 108
 109 #ifdef _WIN32
 110 #include <malloc.h>
 111 #include <sys/timeb.h>
 112 #include <mmsystem.h>
 113 #define getopt_long_only getopt_long
 114 #define memalign(align, size) malloc(size)
 115 #endif
 116
 117 #include "qemu_socket.h"
 118
 119 #ifdef CONFIG_SDL
 120 #ifdef __APPLE__
 121 #include <SDL/SDL.h>
 122 #endif
 123 #endif /* CONFIG_SDL */
 124
 125 #ifdef CONFIG_COCOA
 126 #undef main
 127 #define main qemu_main
 128 #endif /* CONFIG_COCOA */
 129
 130 #include "disas.h"
 131
 132 #include "exec-all.h"
 133
 134 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 135 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 136 #ifdef __sun__
 137 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 138 #else
 139 #define SMBD_COMMAND "/usr/sbin/smbd"
 140 #endif
 141
 142 //#define DEBUG_UNUSED_IOPORT
 143 //#define DEBUG_IOPORT
 144
 145 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
 146
 147 #ifdef TARGET_PPC
 148 #define DEFAULT_RAM_SIZE 144
 149 #else
 150 #define DEFAULT_RAM_SIZE 128
 151 #endif
 152 /* in ms */
 153 #define GUI_REFRESH_INTERVAL 30
 154
 155 /* Max number of USB devices that can be specified on the commandline.  */
 156 #define MAX_USB_CMDLINE 8
 157
 158 /* XXX: use a two level table to limit memory usage */
 159 #define MAX_IOPORTS 65536
 160
 161 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
 162 const char *bios_name = NULL;
 163 void *ioport_opaque[MAX_IOPORTS];
 164 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
 165 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
 166 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
 167    to store the VM snapshots */
 168 DriveInfo drives_table[MAX_DRIVES+1];
 169 int nb_drives;
 170 /* point to the block driver where the snapshots are managed */
 171 BlockDriverState *bs_snapshots;
 172 int vga_ram_size;
 173 static DisplayState display_state;
 174 int nographic;
 175 int curses;
 176 const char* keyboard_layout = NULL;
 177 int64_t ticks_per_sec;
 178 int ram_size;
 179 int pit_min_timer_count = 0;
 180 int nb_nics;
 181 NICInfo nd_table[MAX_NICS];
 182 int vm_running;
 183 static int rtc_utc = 1;
 184 static int rtc_date_offset = -1; /* -1 means no change */
 185 int cirrus_vga_enabled = 1;
 186 int vmsvga_enabled = 0;
 187 #ifdef TARGET_SPARC
 188 int graphic_width = 1024;
 189 int graphic_height = 768;
 190 int graphic_depth = 8;
 191 #else
 192 int graphic_width = 800;
 193 int graphic_height = 600;
 194 int graphic_depth = 15;
 195 #endif
 196 int full_screen = 0;
 197 int no_frame = 0;
 198 int no_quit = 0;
 199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 201 #ifdef TARGET_I386
 202 int win2k_install_hack = 0;
 203 #endif
 204 int usb_enabled = 0;
 205 static VLANState *first_vlan;
 206 int smp_cpus = 1;
 207 const char *vnc_display;
 208 #if defined(TARGET_SPARC)
 209 #define MAX_CPUS 16
 210 #elif defined(TARGET_I386)
 211 #define MAX_CPUS 255
 212 #else
 213 #define MAX_CPUS 1
 214 #endif
 215 int acpi_enabled = 1;
 216 int fd_bootchk = 1;
 217 int no_reboot = 0;
 218 int no_shutdown = 0;
 219 int cursor_hide = 1;
 220 int graphic_rotate = 0;
 221 int daemonize = 0;
 222 const char *option_rom[MAX_OPTION_ROMS];
 223 int nb_option_roms;
 224 int semihosting_enabled = 0;
 225 int autostart = 1;
 226 #ifdef TARGET_ARM
 227 int old_param = 0;
 228 #endif
 229 const char *qemu_name;
 230 int alt_grab = 0;
 231 #ifdef TARGET_SPARC
 232 unsigned int nb_prom_envs = 0;
 233 const char *prom_envs[MAX_PROM_ENVS];
 234 #endif
 235 int nb_drives_opt;
 236 struct drive_opt {
 237     const char *file;
 238     char opt[1024];
 239 } drives_opt[MAX_DRIVES];
 240
 241 static CPUState *cur_cpu;
 242 static CPUState *next_cpu;
 243 static int event_pending = 1;
 244
 245 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
 246
 247 /***********************************************************/
 248 /* x86 ISA bus support */
 249
 250 target_phys_addr_t isa_mem_base = 0;
 251 PicState2 *isa_pic;
 252
 253 static uint32_t default_ioport_readb(void *opaque, uint32_t address)
 254 {
 255 #ifdef DEBUG_UNUSED_IOPORT
 256     fprintf(stderr, "unused inb: port=0x%04x\n", address);
 257 #endif
 258     return 0xff;
 259 }
 260
 261 static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
 262 {
 263 #ifdef DEBUG_UNUSED_IOPORT
 264     fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
 265 #endif
 266 }
 267
 268 /* default is to make two byte accesses */
 269 static uint32_t default_ioport_readw(void *opaque, uint32_t address)
 270 {
 271     uint32_t data;
 272     data = ioport_read_table[0][address](ioport_opaque[address], address);
 273     address = (address + 1) & (MAX_IOPORTS - 1);
 274     data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
 275     return data;
 276 }
 277
 278 static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
 279 {
 280     ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
 281     address = (address + 1) & (MAX_IOPORTS - 1);
 282     ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
 283 }
 284
 285 static uint32_t default_ioport_readl(void *opaque, uint32_t address)
 286 {
 287 #ifdef DEBUG_UNUSED_IOPORT
 288     fprintf(stderr, "unused inl: port=0x%04x\n", address);
 289 #endif
 290     return 0xffffffff;
 291 }
 292
 293 static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
 294 {
 295 #ifdef DEBUG_UNUSED_IOPORT
 296     fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
 297 #endif
 298 }
 299
 300 static void init_ioports(void)
 301 {
 302     int i;
 303
 304     for(i = 0; i < MAX_IOPORTS; i++) {
 305         ioport_read_table[0][i] = default_ioport_readb;
 306         ioport_write_table[0][i] = default_ioport_writeb;
 307         ioport_read_table[1][i] = default_ioport_readw;
 308         ioport_write_table[1][i] = default_ioport_writew;
 309         ioport_read_table[2][i] = default_ioport_readl;
 310         ioport_write_table[2][i] = default_ioport_writel;
 311     }
 312 }
 313
 314 /* size is the word size in byte */
 315 int register_ioport_read(int start, int length, int size,
 316                          IOPortReadFunc *func, void *opaque)
 317 {
 318     int i, bsize;
 319
 320     if (size == 1) {
 321         bsize = 0;
 322     } else if (size == 2) {
 323         bsize = 1;
 324     } else if (size == 4) {
 325         bsize = 2;
 326     } else {
 327         hw_error("register_ioport_read: invalid size");
 328         return -1;
 329     }
 330     for(i = start; i < start + length; i += size) {
 331         ioport_read_table[bsize][i] = func;
 332         if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
 333             hw_error("register_ioport_read: invalid opaque");
 334         ioport_opaque[i] = opaque;
 335     }
 336     return 0;
 337 }
 338
 339 /* size is the word size in byte */
 340 int register_ioport_write(int start, int length, int size,
 341                           IOPortWriteFunc *func, void *opaque)
 342 {
 343     int i, bsize;
 344
 345     if (size == 1) {
 346         bsize = 0;
 347     } else if (size == 2) {
 348         bsize = 1;
 349     } else if (size == 4) {
 350         bsize = 2;
 351     } else {
 352         hw_error("register_ioport_write: invalid size");
 353         return -1;
 354     }
 355     for(i = start; i < start + length; i += size) {
 356         ioport_write_table[bsize][i] = func;
 357         if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
 358             hw_error("register_ioport_write: invalid opaque");
 359         ioport_opaque[i] = opaque;
 360     }
 361     return 0;
 362 }
 363
 364 void isa_unassign_ioport(int start, int length)
 365 {
 366     int i;
 367
 368     for(i = start; i < start + length; i++) {
 369         ioport_read_table[0][i] = default_ioport_readb;
 370         ioport_read_table[1][i] = default_ioport_readw;
 371         ioport_read_table[2][i] = default_ioport_readl;
 372
 373         ioport_write_table[0][i] = default_ioport_writeb;
 374         ioport_write_table[1][i] = default_ioport_writew;
 375         ioport_write_table[2][i] = default_ioport_writel;
 376     }
 377 }
 378
 379 /***********************************************************/
 380
 381 void cpu_outb(CPUState *env, int addr, int val)
 382 {
 383 #ifdef DEBUG_IOPORT
 384     if (loglevel & CPU_LOG_IOPORT)
 385         fprintf(logfile, "outb: %04x %02x\n", addr, val);
 386 #endif
 387     ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
 388 #ifdef USE_KQEMU
 389     if (env)
 390         env->last_io_time = cpu_get_time_fast();
 391 #endif
 392 }
 393
 394 void cpu_outw(CPUState *env, int addr, int val)
 395 {
 396 #ifdef DEBUG_IOPORT
 397     if (loglevel & CPU_LOG_IOPORT)
 398         fprintf(logfile, "outw: %04x %04x\n", addr, val);
 399 #endif
 400     ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
 401 #ifdef USE_KQEMU
 402     if (env)
 403         env->last_io_time = cpu_get_time_fast();
 404 #endif
 405 }
 406
 407 void cpu_outl(CPUState *env, int addr, int val)
 408 {
 409 #ifdef DEBUG_IOPORT
 410     if (loglevel & CPU_LOG_IOPORT)
 411         fprintf(logfile, "outl: %04x %08x\n", addr, val);
 412 #endif
 413     ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
 414 #ifdef USE_KQEMU
 415     if (env)
 416         env->last_io_time = cpu_get_time_fast();
 417 #endif
 418 }
 419
 420 int cpu_inb(CPUState *env, int addr)
 421 {
 422     int val;
 423     val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
 424 #ifdef DEBUG_IOPORT
 425     if (loglevel & CPU_LOG_IOPORT)
 426         fprintf(logfile, "inb : %04x %02x\n", addr, val);
 427 #endif
 428 #ifdef USE_KQEMU
 429     if (env)
 430         env->last_io_time = cpu_get_time_fast();
 431 #endif
 432     return val;
 433 }
 434
 435 int cpu_inw(CPUState *env, int addr)
 436 {
 437     int val;
 438     val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
 439 #ifdef DEBUG_IOPORT
 440     if (loglevel & CPU_LOG_IOPORT)
 441         fprintf(logfile, "inw : %04x %04x\n", addr, val);
 442 #endif
 443 #ifdef USE_KQEMU
 444     if (env)
 445         env->last_io_time = cpu_get_time_fast();
 446 #endif
 447     return val;
 448 }
 449
 450 int cpu_inl(CPUState *env, int addr)
 451 {
 452     int val;
 453     val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
 454 #ifdef DEBUG_IOPORT
 455     if (loglevel & CPU_LOG_IOPORT)
 456         fprintf(logfile, "inl : %04x %08x\n", addr, val);
 457 #endif
 458 #ifdef USE_KQEMU
 459     if (env)
 460         env->last_io_time = cpu_get_time_fast();
 461 #endif
 462     return val;
 463 }
 464
 465 /***********************************************************/
 466 void hw_error(const char *fmt, ...)
 467 {
 468     va_list ap;
 469     CPUState *env;
 470
 471     va_start(ap, fmt);
 472     fprintf(stderr, "qemu: hardware error: ");
 473     vfprintf(stderr, fmt, ap);
 474     fprintf(stderr, "\n");
 475     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 476         fprintf(stderr, "CPU #%d:\n", env->cpu_index);
 477 #ifdef TARGET_I386
 478         cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
 479 #else
 480         cpu_dump_state(env, stderr, fprintf, 0);
 481 #endif
 482     }
 483     va_end(ap);
 484     abort();
 485 }
 486
 487 /***********************************************************/
 488 /* keyboard/mouse */
 489
 490 static QEMUPutKBDEvent *qemu_put_kbd_event;
 491 static void *qemu_put_kbd_event_opaque;
 492 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
 493 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
 494
 495 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 496 {
 497     qemu_put_kbd_event_opaque = opaque;
 498     qemu_put_kbd_event = func;
 499 }
 500
 501 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 502                                                 void *opaque, int absolute,
 503                                                 const char *name)
 504 {
 505     QEMUPutMouseEntry *s, *cursor;
 506
 507     s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
 508     if (!s)
 509         return NULL;
 510
 511     s->qemu_put_mouse_event = func;
 512     s->qemu_put_mouse_event_opaque = opaque;
 513     s->qemu_put_mouse_event_absolute = absolute;
 514     s->qemu_put_mouse_event_name = qemu_strdup(name);
 515     s->next = NULL;
 516
 517     if (!qemu_put_mouse_event_head) {
 518         qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
 519         return s;
 520     }
 521
 522     cursor = qemu_put_mouse_event_head;
 523     while (cursor->next != NULL)
 524         cursor = cursor->next;
 525
 526     cursor->next = s;
 527     qemu_put_mouse_event_current = s;
 528
 529     return s;
 530 }
 531
 532 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 533 {
 534     QEMUPutMouseEntry *prev = NULL, *cursor;
 535
 536     if (!qemu_put_mouse_event_head || entry == NULL)
 537         return;
 538
 539     cursor = qemu_put_mouse_event_head;
 540     while (cursor != NULL && cursor != entry) {
 541         prev = cursor;
 542         cursor = cursor->next;
 543     }
 544
 545     if (cursor == NULL) // does not exist or list empty
 546         return;
 547     else if (prev == NULL) { // entry is head
 548         qemu_put_mouse_event_head = cursor->next;
 549         if (qemu_put_mouse_event_current == entry)
 550             qemu_put_mouse_event_current = cursor->next;
 551         qemu_free(entry->qemu_put_mouse_event_name);
 552         qemu_free(entry);
 553         return;
 554     }
 555
 556     prev->next = entry->next;
 557
 558     if (qemu_put_mouse_event_current == entry)
 559         qemu_put_mouse_event_current = prev;
 560
 561     qemu_free(entry->qemu_put_mouse_event_name);
 562     qemu_free(entry);
 563 }
 564
 565 void kbd_put_keycode(int keycode)
 566 {
 567     if (qemu_put_kbd_event) {
 568         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 569     }
 570 }
 571
 572 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 573 {
 574     QEMUPutMouseEvent *mouse_event;
 575     void *mouse_event_opaque;
 576     int width;
 577
 578     if (!qemu_put_mouse_event_current) {
 579         return;
 580     }
 581
 582     mouse_event =
 583         qemu_put_mouse_event_current->qemu_put_mouse_event;
 584     mouse_event_opaque =
 585         qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
 586
 587     if (mouse_event) {
 588         if (graphic_rotate) {
 589             if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
 590                 width = 0x7fff;
 591             else
 592                 width = graphic_width - 1;
 593             mouse_event(mouse_event_opaque,
 594                                  width - dy, dx, dz, buttons_state);
 595         } else
 596             mouse_event(mouse_event_opaque,
 597                                  dx, dy, dz, buttons_state);
 598     }
 599 }
 600
 601 int kbd_mouse_is_absolute(void)
 602 {
 603     if (!qemu_put_mouse_event_current)
 604         return 0;
 605
 606     return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
 607 }
 608
 609 void do_info_mice(void)
 610 {
 611     QEMUPutMouseEntry *cursor;
 612     int index = 0;
 613
 614     if (!qemu_put_mouse_event_head) {
 615         term_printf("No mouse devices connected\n");
 616         return;
 617     }
 618
 619     term_printf("Mouse devices available:\n");
 620     cursor = qemu_put_mouse_event_head;
 621     while (cursor != NULL) {
 622         term_printf("%c Mouse #%d: %s\n",
 623                     (cursor == qemu_put_mouse_event_current ? '*' : ' '),
 624                     index, cursor->qemu_put_mouse_event_name);
 625         index++;
 626         cursor = cursor->next;
 627     }
 628 }
 629
 630 void do_mouse_set(int index)
 631 {
 632     QEMUPutMouseEntry *cursor;
 633     int i = 0;
 634
 635     if (!qemu_put_mouse_event_head) {
 636         term_printf("No mouse devices connected\n");
 637         return;
 638     }
 639
 640     cursor = qemu_put_mouse_event_head;
 641     while (cursor != NULL && index != i) {
 642         i++;
 643         cursor = cursor->next;
 644     }
 645
 646     if (cursor != NULL)
 647         qemu_put_mouse_event_current = cursor;
 648     else
 649         term_printf("Mouse at given index not found\n");
 650 }
 651
 652 /* compute with 96 bit intermediate result: (a*b)/c */
 653 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
 654 {
 655     union {
 656         uint64_t ll;
 657         struct {
 658 #ifdef WORDS_BIGENDIAN
 659             uint32_t high, low;
 660 #else
 661             uint32_t low, high;
 662 #endif
 663         } l;
 664     } u, res;
 665     uint64_t rl, rh;
 666
 667     u.ll = a;
 668     rl = (uint64_t)u.l.low * (uint64_t)b;
 669     rh = (uint64_t)u.l.high * (uint64_t)b;
 670     rh += (rl >> 32);
 671     res.l.high = rh / c;
 672     res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
 673     return res.ll;
 674 }
 675
 676 /***********************************************************/
 677 /* real time host monotonic timer */
 678
 679 #define QEMU_TIMER_BASE 1000000000LL
 680
 681 #ifdef WIN32
 682
 683 static int64_t clock_freq;
 684
 685 static void init_get_clock(void)
 686 {
 687     LARGE_INTEGER freq;
 688     int ret;
 689     ret = QueryPerformanceFrequency(&freq);
 690     if (ret == 0) {
 691         fprintf(stderr, "Could not calibrate ticks\n");
 692         exit(1);
 693     }
 694     clock_freq = freq.QuadPart;
 695 }
 696
 697 static int64_t get_clock(void)
 698 {
 699     LARGE_INTEGER ti;
 700     QueryPerformanceCounter(&ti);
 701     return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
 702 }
 703
 704 #else
 705
 706 static int use_rt_clock;
 707
 708 static void init_get_clock(void)
 709 {
 710     use_rt_clock = 0;
 711 #if defined(__linux__)
 712     {
 713         struct timespec ts;
 714         if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
 715             use_rt_clock = 1;
 716         }
 717     }
 718 #endif
 719 }
 720
 721 static int64_t get_clock(void)
 722 {
 723 #if defined(__linux__)
 724     if (use_rt_clock) {
 725         struct timespec ts;
 726         clock_gettime(CLOCK_MONOTONIC, &ts);
 727         return ts.tv_sec * 1000000000LL + ts.tv_nsec;
 728     } else
 729 #endif
 730     {
 731         /* XXX: using gettimeofday leads to problems if the date
 732            changes, so it should be avoided. */
 733         struct timeval tv;
 734         gettimeofday(&tv, NULL);
 735         return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
 736     }
 737 }
 738
 739 #endif
 740
 741 /***********************************************************/
 742 /* guest cycle counter */
 743
 744 static int64_t cpu_ticks_prev;
 745 static int64_t cpu_ticks_offset;
 746 static int64_t cpu_clock_offset;
 747 static int cpu_ticks_enabled;
 748
 749 /* return the host CPU cycle counter and handle stop/restart */
 750 int64_t cpu_get_ticks(void)
 751 {
 752     if (!cpu_ticks_enabled) {
 753         return cpu_ticks_offset;
 754     } else {
 755         int64_t ticks;
 756         ticks = cpu_get_real_ticks();
 757         if (cpu_ticks_prev > ticks) {
 758             /* Note: non increasing ticks may happen if the host uses
 759                software suspend */
 760             cpu_ticks_offset += cpu_ticks_prev - ticks;
 761         }
 762         cpu_ticks_prev = ticks;
 763         return ticks + cpu_ticks_offset;
 764     }
 765 }
 766
 767 /* return the host CPU monotonic timer and handle stop/restart */
 768 static int64_t cpu_get_clock(void)
 769 {
 770     int64_t ti;
 771     if (!cpu_ticks_enabled) {
 772         return cpu_clock_offset;
 773     } else {
 774         ti = get_clock();
 775         return ti + cpu_clock_offset;
 776     }
 777 }
 778
 779 /* enable cpu_get_ticks() */
 780 void cpu_enable_ticks(void)
 781 {
 782     if (!cpu_ticks_enabled) {
 783         cpu_ticks_offset -= cpu_get_real_ticks();
 784         cpu_clock_offset -= get_clock();
 785         cpu_ticks_enabled = 1;
 786     }
 787 }
 788
 789 /* disable cpu_get_ticks() : the clock is stopped. You must not call
 790    cpu_get_ticks() after that.  */
 791 void cpu_disable_ticks(void)
 792 {
 793     if (cpu_ticks_enabled) {
 794         cpu_ticks_offset = cpu_get_ticks();
 795         cpu_clock_offset = cpu_get_clock();
 796         cpu_ticks_enabled = 0;
 797     }
 798 }
 799
 800 /***********************************************************/
 801 /* timers */
 802
 803 #define QEMU_TIMER_REALTIME 0
 804 #define QEMU_TIMER_VIRTUAL  1
 805
 806 struct QEMUClock {
 807     int type;
 808     /* XXX: add frequency */
 809 };
 810
 811 struct QEMUTimer {
 812     QEMUClock *clock;
 813     int64_t expire_time;
 814     QEMUTimerCB *cb;
 815     void *opaque;
 816     struct QEMUTimer *next;
 817 };
 818
 819 struct qemu_alarm_timer {
 820     char const *name;
 821     unsigned int flags;
 822
 823     int (*start)(struct qemu_alarm_timer *t);
 824     void (*stop)(struct qemu_alarm_timer *t);
 825     void (*rearm)(struct qemu_alarm_timer *t);
 826     void *priv;
 827 };
 828
 829 #define ALARM_FLAG_DYNTICKS  0x1
 830 #define ALARM_FLAG_EXPIRED   0x2
 831
 832 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
 833 {
 834     return t->flags & ALARM_FLAG_DYNTICKS;
 835 }
 836
 837 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
 838 {
 839     if (!alarm_has_dynticks(t))
 840         return;
 841
 842     t->rearm(t);
 843 }
 844
 845 /* TODO: MIN_TIMER_REARM_US should be optimized */
 846 #define MIN_TIMER_REARM_US 250
 847
 848 static struct qemu_alarm_timer *alarm_timer;
 849
 850 #ifdef _WIN32
 851
 852 struct qemu_alarm_win32 {
 853     MMRESULT timerId;
 854     HANDLE host_alarm;
 855     unsigned int period;
 856 } alarm_win32_data = {0, NULL, -1};
 857
 858 static int win32_start_timer(struct qemu_alarm_timer *t);
 859 static void win32_stop_timer(struct qemu_alarm_timer *t);
 860 static void win32_rearm_timer(struct qemu_alarm_timer *t);
 861
 862 #else
 863
 864 static int unix_start_timer(struct qemu_alarm_timer *t);
 865 static void unix_stop_timer(struct qemu_alarm_timer *t);
 866
 867 #ifdef __linux__
 868
 869 static int dynticks_start_timer(struct qemu_alarm_timer *t);
 870 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
 871 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
 872
 873 static int hpet_start_timer(struct qemu_alarm_timer *t);
 874 static void hpet_stop_timer(struct qemu_alarm_timer *t);
 875
 876 static int rtc_start_timer(struct qemu_alarm_timer *t);
 877 static void rtc_stop_timer(struct qemu_alarm_timer *t);
 878
 879 #endif /* __linux__ */
 880
 881 #endif /* _WIN32 */
 882
 883 static struct qemu_alarm_timer alarm_timers[] = {
 884 #ifndef _WIN32
 885 #ifdef __linux__
 886     {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
 887      dynticks_stop_timer, dynticks_rearm_timer, NULL},
 888     /* HPET - if available - is preferred */
 889     {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
 890     /* ...otherwise try RTC */
 891     {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
 892 #endif
 893     {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
 894 #else
 895     {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
 896      win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
 897     {"win32", 0, win32_start_timer,
 898      win32_stop_timer, NULL, &alarm_win32_data},
 899 #endif
 900     {NULL, }
 901 };
 902
 903 static void show_available_alarms(void)
 904 {
 905     int i;
 906
 907     printf("Available alarm timers, in order of precedence:\n");
 908     for (i = 0; alarm_timers[i].name; i++)
 909         printf("%s\n", alarm_timers[i].name);
 910 }
 911
 912 static void configure_alarms(char const *opt)
 913 {
 914     int i;
 915     int cur = 0;
 916     int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1;
 917     char *arg;
 918     char *name;
 919
 920     if (!strcmp(opt, "?")) {
 921         show_available_alarms();
 922         exit(0);
 923     }
 924
 925     arg = strdup(opt);
 926
 927     /* Reorder the array */
 928     name = strtok(arg, ",");
 929     while (name) {
 930         struct qemu_alarm_timer tmp;
 931
 932         for (i = 0; i < count && alarm_timers[i].name; i++) {
 933             if (!strcmp(alarm_timers[i].name, name))
 934                 break;
 935         }
 936
 937         if (i == count) {
 938             fprintf(stderr, "Unknown clock %s\n", name);
 939             goto next;
 940         }
 941
 942         if (i < cur)
 943             /* Ignore */
 944             goto next;
 945
 946         /* Swap */
 947         tmp = alarm_timers[i];
 948         alarm_timers[i] = alarm_timers[cur];
 949         alarm_timers[cur] = tmp;
 950
 951         cur++;
 952 next:
 953         name = strtok(NULL, ",");
 954     }
 955
 956     free(arg);
 957
 958     if (cur) {
 959         /* Disable remaining timers */
 960         for (i = cur; i < count; i++)
 961             alarm_timers[i].name = NULL;
 962     } else {
 963         show_available_alarms();
 964         exit(1);
 965     }
 966 }
 967
 968 QEMUClock *rt_clock;
 969 QEMUClock *vm_clock;
 970
 971 static QEMUTimer *active_timers[2];
 972
 973 static QEMUClock *qemu_new_clock(int type)
 974 {
 975     QEMUClock *clock;
 976     clock = qemu_mallocz(sizeof(QEMUClock));
 977     if (!clock)
 978         return NULL;
 979     clock->type = type;
 980     return clock;
 981 }
 982
 983 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
 984 {
 985     QEMUTimer *ts;
 986
 987     ts = qemu_mallocz(sizeof(QEMUTimer));
 988     ts->clock = clock;
 989     ts->cb = cb;
 990     ts->opaque = opaque;
 991     return ts;
 992 }
 993
 994 void qemu_free_timer(QEMUTimer *ts)
 995 {
 996     qemu_free(ts);
 997 }
 998
 999 /* stop a timer, but do not dealloc it */
1000 void qemu_del_timer(QEMUTimer *ts)
1001 {
1002     QEMUTimer **pt, *t;
1003
1004     /* NOTE: this code must be signal safe because
1005        qemu_timer_expired() can be called from a signal. */
1006     pt = &active_timers[ts->clock->type];
1007     for(;;) {
1008         t = *pt;
1009         if (!t)
1010             break;
1011         if (t == ts) {
1012             *pt = t->next;
1013             break;
1014         }
1015         pt = &t->next;
1016     }
1017 }
1018
1019 /* modify the current timer so that it will be fired when current_time
1020    >= expire_time. The corresponding callback will be called. */
1021 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
1022 {
1023     QEMUTimer **pt, *t;
1024
1025     qemu_del_timer(ts);
1026
1027     /* add the timer in the sorted list */
1028     /* NOTE: this code must be signal safe because
1029        qemu_timer_expired() can be called from a signal. */
1030     pt = &active_timers[ts->clock->type];
1031     for(;;) {
1032         t = *pt;
1033         if (!t)
1034             break;
1035         if (t->expire_time > expire_time)
1036             break;
1037         pt = &t->next;
1038     }
1039     ts->expire_time = expire_time;
1040     ts->next = *pt;
1041     *pt = ts;
1042
1043     /* Rearm if necessary  */
1044     if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0 &&
1045         pt == &active_timers[ts->clock->type])
1046         qemu_rearm_alarm_timer(alarm_timer);
1047 }
1048
1049 int qemu_timer_pending(QEMUTimer *ts)
1050 {
1051     QEMUTimer *t;
1052     for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
1053         if (t == ts)
1054             return 1;
1055     }
1056     return 0;
1057 }
1058
1059 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1060 {
1061     if (!timer_head)
1062         return 0;
1063     return (timer_head->expire_time <= current_time);
1064 }
1065
1066 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1067 {
1068     QEMUTimer *ts;
1069
1070     for(;;) {
1071         ts = *ptimer_head;
1072         if (!ts || ts->expire_time > current_time)
1073             break;
1074         /* remove timer from the list before calling the callback */
1075         *ptimer_head = ts->next;
1076         ts->next = NULL;
1077
1078         /* run the callback (the timer list can be modified) */
1079         ts->cb(ts->opaque);
1080     }
1081 }
1082
1083 int64_t qemu_get_clock(QEMUClock *clock)
1084 {
1085     switch(clock->type) {
1086     case QEMU_TIMER_REALTIME:
1087         return get_clock() / 1000000;
1088     default:
1089     case QEMU_TIMER_VIRTUAL:
1090         return cpu_get_clock();
1091     }
1092 }
1093
1094 static void init_timers(void)
1095 {
1096     init_get_clock();
1097     ticks_per_sec = QEMU_TIMER_BASE;
1098     rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1099     vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1100 }
1101
1102 /* save a timer */
1103 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1104 {
1105     uint64_t expire_time;
1106
1107     if (qemu_timer_pending(ts)) {
1108         expire_time = ts->expire_time;
1109     } else {
1110         expire_time = -1;
1111     }
1112     qemu_put_be64(f, expire_time);
1113 }
1114
1115 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1116 {
1117     uint64_t expire_time;
1118
1119     expire_time = qemu_get_be64(f);
1120     if (expire_time != -1) {
1121         qemu_mod_timer(ts, expire_time);
1122     } else {
1123         qemu_del_timer(ts);
1124     }
1125 }
1126
1127 static void timer_save(QEMUFile *f, void *opaque)
1128 {
1129     if (cpu_ticks_enabled) {
1130         hw_error("cannot save state if virtual timers are running");
1131     }
1132     qemu_put_be64(f, cpu_ticks_offset);
1133     qemu_put_be64(f, ticks_per_sec);
1134     qemu_put_be64(f, cpu_clock_offset);
1135 }
1136
1137 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1138 {
1139     if (version_id != 1 && version_id != 2)
1140         return -EINVAL;
1141     if (cpu_ticks_enabled) {
1142         return -EINVAL;
1143     }
1144     cpu_ticks_offset=qemu_get_be64(f);
1145     ticks_per_sec=qemu_get_be64(f);
1146     if (version_id == 2) {
1147         cpu_clock_offset=qemu_get_be64(f);
1148     }
1149     return 0;
1150 }
1151
1152 #ifdef _WIN32
1153 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1154                                  DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
1155 #else
1156 static void host_alarm_handler(int host_signum)
1157 #endif
1158 {
1159 #if 0
1160 #define DISP_FREQ 1000
1161     {
1162         static int64_t delta_min = INT64_MAX;
1163         static int64_t delta_max, delta_cum, last_clock, delta, ti;
1164         static int count;
1165         ti = qemu_get_clock(vm_clock);
1166         if (last_clock != 0) {
1167             delta = ti - last_clock;
1168             if (delta < delta_min)
1169                 delta_min = delta;
1170             if (delta > delta_max)
1171                 delta_max = delta;
1172             delta_cum += delta;
1173             if (++count == DISP_FREQ) {
1174                 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1175                        muldiv64(delta_min, 1000000, ticks_per_sec),
1176                        muldiv64(delta_max, 1000000, ticks_per_sec),
1177                        muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1178                        (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1179                 count = 0;
1180                 delta_min = INT64_MAX;
1181                 delta_max = 0;
1182                 delta_cum = 0;
1183             }
1184         }
1185         last_clock = ti;
1186     }
1187 #endif
1188     if (alarm_has_dynticks(alarm_timer) ||
1189         qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1190                            qemu_get_clock(vm_clock)) ||
1191         qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1192                            qemu_get_clock(rt_clock))) {
1193 #ifdef _WIN32
1194         struct qemu_alarm_win32 *data = ((struct qemu_alarm_timer*)dwUser)->priv;
1195         SetEvent(data->host_alarm);
1196 #endif
1197         CPUState *env = next_cpu;
1198
1199         alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1200
1201         if (env) {
1202             /* stop the currently executing cpu because a timer occured */
1203             cpu_interrupt(env, CPU_INTERRUPT_EXIT);
1204 #ifdef USE_KQEMU
1205             if (env->kqemu_enabled) {
1206                 kqemu_cpu_interrupt(env);
1207             }
1208 #endif
1209         }
1210         event_pending = 1;
1211     }
1212 }
1213
1214 static uint64_t qemu_next_deadline(void)
1215 {
1216     int64_t nearest_delta_us = INT64_MAX;
1217     int64_t vmdelta_us;
1218
1219     if (active_timers[QEMU_TIMER_REALTIME])
1220         nearest_delta_us = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1221                             qemu_get_clock(rt_clock))*1000;
1222
1223     if (active_timers[QEMU_TIMER_VIRTUAL]) {
1224         /* round up */
1225         vmdelta_us = (active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1226                       qemu_get_clock(vm_clock)+999)/1000;
1227         if (vmdelta_us < nearest_delta_us)
1228             nearest_delta_us = vmdelta_us;
1229     }
1230
1231     /* Avoid arming the timer to negative, zero, or too low values */
1232     if (nearest_delta_us <= MIN_TIMER_REARM_US)
1233         nearest_delta_us = MIN_TIMER_REARM_US;
1234
1235     return nearest_delta_us;
1236 }
1237
1238 #ifndef _WIN32
1239
1240 #if defined(__linux__)
1241
1242 #define RTC_FREQ 1024
1243
1244 static void enable_sigio_timer(int fd)
1245 {
1246     struct sigaction act;
1247
1248     /* timer signal */
1249     sigfillset(&act.sa_mask);
1250     act.sa_flags = 0;
1251     act.sa_handler = host_alarm_handler;
1252
1253     sigaction(SIGIO, &act, NULL);
1254     fcntl(fd, F_SETFL, O_ASYNC);
1255     fcntl(fd, F_SETOWN, getpid());
1256 }
1257
1258 static int hpet_start_timer(struct qemu_alarm_timer *t)
1259 {
1260     struct hpet_info info;
1261     int r, fd;
1262
1263     fd = open("/dev/hpet", O_RDONLY);
1264     if (fd < 0)
1265         return -1;
1266
1267     /* Set frequency */
1268     r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1269     if (r < 0) {
1270         fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1271                 "error, but for better emulation accuracy type:\n"
1272                 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1273         goto fail;
1274     }
1275
1276     /* Check capabilities */
1277     r = ioctl(fd, HPET_INFO, &info);
1278     if (r < 0)
1279         goto fail;
1280
1281     /* Enable periodic mode */
1282     r = ioctl(fd, HPET_EPI, 0);
1283     if (info.hi_flags && (r < 0))
1284         goto fail;
1285
1286     /* Enable interrupt */
1287     r = ioctl(fd, HPET_IE_ON, 0);
1288     if (r < 0)
1289         goto fail;
1290
1291     enable_sigio_timer(fd);
1292     t->priv = (void *)(long)fd;
1293
1294     return 0;
1295 fail:
1296     close(fd);
1297     return -1;
1298 }
1299
1300 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1301 {
1302     int fd = (long)t->priv;
1303
1304     close(fd);
1305 }
1306
1307 static int rtc_start_timer(struct qemu_alarm_timer *t)
1308 {
1309     int rtc_fd;
1310     unsigned long current_rtc_freq = 0;
1311
1312     TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1313     if (rtc_fd < 0)
1314         return -1;
1315     ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1316     if (current_rtc_freq != RTC_FREQ &&
1317         ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1318         fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1319                 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1320                 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1321         goto fail;
1322     }
1323     if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1324     fail:
1325         close(rtc_fd);
1326         return -1;
1327     }
1328
1329     enable_sigio_timer(rtc_fd);
1330
1331     t->priv = (void *)(long)rtc_fd;
1332
1333     return 0;
1334 }
1335
1336 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1337 {
1338     int rtc_fd = (long)t->priv;
1339
1340     close(rtc_fd);
1341 }
1342
1343 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1344 {
1345     struct sigevent ev;
1346     timer_t host_timer;
1347     struct sigaction act;
1348
1349     sigfillset(&act.sa_mask);
1350     act.sa_flags = 0;
1351     act.sa_handler = host_alarm_handler;
1352
1353     sigaction(SIGALRM, &act, NULL);
1354
1355     ev.sigev_value.sival_int = 0;
1356     ev.sigev_notify = SIGEV_SIGNAL;
1357     ev.sigev_signo = SIGALRM;
1358
1359     if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1360         perror("timer_create");
1361
1362         /* disable dynticks */
1363         fprintf(stderr, "Dynamic Ticks disabled\n");
1364
1365         return -1;
1366     }
1367
1368     t->priv = (void *)host_timer;
1369
1370     return 0;
1371 }
1372
1373 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1374 {
1375     timer_t host_timer = (timer_t)t->priv;
1376
1377     timer_delete(host_timer);
1378 }
1379
1380 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1381 {
1382     timer_t host_timer = (timer_t)t->priv;
1383     struct itimerspec timeout;
1384     int64_t nearest_delta_us = INT64_MAX;
1385     int64_t current_us;
1386
1387     if (!active_timers[QEMU_TIMER_REALTIME] &&
1388                 !active_timers[QEMU_TIMER_VIRTUAL])
1389         return;
1390
1391     nearest_delta_us = qemu_next_deadline();
1392
1393     /* check whether a timer is already running */
1394     if (timer_gettime(host_timer, &timeout)) {
1395         perror("gettime");
1396         fprintf(stderr, "Internal timer error: aborting\n");
1397         exit(1);
1398     }
1399     current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1400     if (current_us && current_us <= nearest_delta_us)
1401         return;
1402
1403     timeout.it_interval.tv_sec = 0;
1404     timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1405     timeout.it_value.tv_sec =  nearest_delta_us / 1000000;
1406     timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1407     if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1408         perror("settime");
1409         fprintf(stderr, "Internal timer error: aborting\n");
1410         exit(1);
1411     }
1412 }
1413
1414 #endif /* defined(__linux__) */
1415
1416 static int unix_start_timer(struct qemu_alarm_timer *t)
1417 {
1418     struct sigaction act;
1419     struct itimerval itv;
1420     int err;
1421
1422     /* timer signal */
1423     sigfillset(&act.sa_mask);
1424     act.sa_flags = 0;
1425     act.sa_handler = host_alarm_handler;
1426
1427     sigaction(SIGALRM, &act, NULL);
1428
1429     itv.it_interval.tv_sec = 0;
1430     /* for i386 kernel 2.6 to get 1 ms */
1431     itv.it_interval.tv_usec = 999;
1432     itv.it_value.tv_sec = 0;
1433     itv.it_value.tv_usec = 10 * 1000;
1434
1435     err = setitimer(ITIMER_REAL, &itv, NULL);
1436     if (err)
1437         return -1;
1438
1439     return 0;
1440 }
1441
1442 static void unix_stop_timer(struct qemu_alarm_timer *t)
1443 {
1444     struct itimerval itv;
1445
1446     memset(&itv, 0, sizeof(itv));
1447     setitimer(ITIMER_REAL, &itv, NULL);
1448 }
1449
1450 #endif /* !defined(_WIN32) */
1451
1452 #ifdef _WIN32
1453
1454 static int win32_start_timer(struct qemu_alarm_timer *t)
1455 {
1456     TIMECAPS tc;
1457     struct qemu_alarm_win32 *data = t->priv;
1458     UINT flags;
1459
1460     data->host_alarm = CreateEvent(NULL, FALSE, FALSE, NULL);
1461     if (!data->host_alarm) {
1462         perror("Failed CreateEvent");
1463         return -1;
1464     }
1465
1466     memset(&tc, 0, sizeof(tc));
1467     timeGetDevCaps(&tc, sizeof(tc));
1468
1469     if (data->period < tc.wPeriodMin)
1470         data->period = tc.wPeriodMin;
1471
1472     timeBeginPeriod(data->period);
1473
1474     flags = TIME_CALLBACK_FUNCTION;
1475     if (alarm_has_dynticks(t))
1476         flags |= TIME_ONESHOT;
1477     else
1478         flags |= TIME_PERIODIC;
1479
1480     data->timerId = timeSetEvent(1,         // interval (ms)
1481                         data->period,       // resolution
1482                         host_alarm_handler, // function
1483                         (DWORD)t,           // parameter
1484                         flags);
1485
1486     if (!data->timerId) {
1487         perror("Failed to initialize win32 alarm timer");
1488
1489         timeEndPeriod(data->period);
1490         CloseHandle(data->host_alarm);
1491         return -1;
1492     }
1493
1494     qemu_add_wait_object(data->host_alarm, NULL, NULL);
1495
1496     return 0;
1497 }
1498
1499 static void win32_stop_timer(struct qemu_alarm_timer *t)
1500 {
1501     struct qemu_alarm_win32 *data = t->priv;
1502
1503     timeKillEvent(data->timerId);
1504     timeEndPeriod(data->period);
1505
1506     CloseHandle(data->host_alarm);
1507 }
1508
1509 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1510 {
1511     struct qemu_alarm_win32 *data = t->priv;
1512     uint64_t nearest_delta_us;
1513
1514     if (!active_timers[QEMU_TIMER_REALTIME] &&
1515                 !active_timers[QEMU_TIMER_VIRTUAL])
1516         return;
1517
1518     nearest_delta_us = qemu_next_deadline();
1519     nearest_delta_us /= 1000;
1520
1521     timeKillEvent(data->timerId);
1522
1523     data->timerId = timeSetEvent(1,
1524                         data->period,
1525                         host_alarm_handler,
1526                         (DWORD)t,
1527                         TIME_ONESHOT | TIME_PERIODIC);
1528
1529     if (!data->timerId) {
1530         perror("Failed to re-arm win32 alarm timer");
1531
1532         timeEndPeriod(data->period);
1533         CloseHandle(data->host_alarm);
1534         exit(1);
1535     }
1536 }
1537
1538 #endif /* _WIN32 */
1539
1540 static void init_timer_alarm(void)
1541 {
1542     struct qemu_alarm_timer *t;
1543     int i, err = -1;
1544
1545     for (i = 0; alarm_timers[i].name; i++) {
1546         t = &alarm_timers[i];
1547
1548         err = t->start(t);
1549         if (!err)
1550             break;
1551     }
1552
1553     if (err) {
1554         fprintf(stderr, "Unable to find any suitable alarm timer.\n");
1555         fprintf(stderr, "Terminating\n");
1556         exit(1);
1557     }
1558
1559     alarm_timer = t;
1560 }
1561
1562 static void quit_timers(void)
1563 {
1564     alarm_timer->stop(alarm_timer);
1565     alarm_timer = NULL;
1566 }
1567
1568 /***********************************************************/
1569 /* host time/date access */
1570 void qemu_get_timedate(struct tm *tm, int offset)
1571 {
1572     time_t ti;
1573     struct tm *ret;
1574
1575     time(&ti);
1576     ti += offset;
1577     if (rtc_date_offset == -1) {
1578         if (rtc_utc)
1579             ret = gmtime(&ti);
1580         else
1581             ret = localtime(&ti);
1582     } else {
1583         ti -= rtc_date_offset;
1584         ret = gmtime(&ti);
1585     }
1586
1587     memcpy(tm, ret, sizeof(struct tm));
1588 }
1589
1590 int qemu_timedate_diff(struct tm *tm)
1591 {
1592     time_t seconds;
1593
1594     if (rtc_date_offset == -1)
1595         if (rtc_utc)
1596             seconds = mktimegm(tm);
1597         else
1598             seconds = mktime(tm);
1599     else
1600         seconds = mktimegm(tm) + rtc_date_offset;
1601
1602     return seconds - time(NULL);
1603 }
1604
1605 /***********************************************************/
1606 /* character device */
1607
1608 static void qemu_chr_event(CharDriverState *s, int event)
1609 {
1610     if (!s->chr_event)
1611         return;
1612     s->chr_event(s->handler_opaque, event);
1613 }
1614
1615 static void qemu_chr_reset_bh(void *opaque)
1616 {
1617     CharDriverState *s = opaque;
1618     qemu_chr_event(s, CHR_EVENT_RESET);
1619     qemu_bh_delete(s->bh);
1620     s->bh = NULL;
1621 }
1622
1623 void qemu_chr_reset(CharDriverState *s)
1624 {
1625     if (s->bh == NULL) {
1626         s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
1627         qemu_bh_schedule(s->bh);
1628     }
1629 }
1630
1631 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
1632 {
1633     return s->chr_write(s, buf, len);
1634 }
1635
1636 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
1637 {
1638     if (!s->chr_ioctl)
1639         return -ENOTSUP;
1640     return s->chr_ioctl(s, cmd, arg);
1641 }
1642
1643 int qemu_chr_can_read(CharDriverState *s)
1644 {
1645     if (!s->chr_can_read)
1646         return 0;
1647     return s->chr_can_read(s->handler_opaque);
1648 }
1649
1650 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
1651 {
1652     s->chr_read(s->handler_opaque, buf, len);
1653 }
1654
1655 void qemu_chr_accept_input(CharDriverState *s)
1656 {
1657     if (s->chr_accept_input)
1658         s->chr_accept_input(s);
1659 }
1660
1661 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
1662 {
1663     char buf[4096];
1664     va_list ap;
1665     va_start(ap, fmt);
1666     vsnprintf(buf, sizeof(buf), fmt, ap);
1667     qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
1668     va_end(ap);
1669 }
1670
1671 void qemu_chr_send_event(CharDriverState *s, int event)
1672 {
1673     if (s->chr_send_event)
1674         s->chr_send_event(s, event);
1675 }
1676
1677 void qemu_chr_add_handlers(CharDriverState *s,
1678                            IOCanRWHandler *fd_can_read,
1679                            IOReadHandler *fd_read,
1680                            IOEventHandler *fd_event,
1681                            void *opaque)
1682 {
1683     s->chr_can_read = fd_can_read;
1684     s->chr_read = fd_read;
1685     s->chr_event = fd_event;
1686     s->handler_opaque = opaque;
1687     if (s->chr_update_read_handler)
1688         s->chr_update_read_handler(s);
1689 }
1690
1691 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1692 {
1693     return len;
1694 }
1695
1696 static CharDriverState *qemu_chr_open_null(void)
1697 {
1698     CharDriverState *chr;
1699
1700     chr = qemu_mallocz(sizeof(CharDriverState));
1701     if (!chr)
1702         return NULL;
1703     chr->chr_write = null_chr_write;
1704     return chr;
1705 }
1706
1707 /* MUX driver for serial I/O splitting */
1708 static int term_timestamps;
1709 static int64_t term_timestamps_start;
1710 #define MAX_MUX 4
1711 #define MUX_BUFFER_SIZE 32      /* Must be a power of 2.  */
1712 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
1713 typedef struct {
1714     IOCanRWHandler *chr_can_read[MAX_MUX];
1715     IOReadHandler *chr_read[MAX_MUX];
1716     IOEventHandler *chr_event[MAX_MUX];
1717     void *ext_opaque[MAX_MUX];
1718     CharDriverState *drv;
1719     unsigned char buffer[MUX_BUFFER_SIZE];
1720     int prod;
1721     int cons;
1722     int mux_cnt;
1723     int term_got_escape;
1724     int max_size;
1725 } MuxDriver;
1726
1727
1728 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1729 {
1730     MuxDriver *d = chr->opaque;
1731     int ret;
1732     if (!term_timestamps) {
1733         ret = d->drv->chr_write(d->drv, buf, len);
1734     } else {
1735         int i;
1736
1737         ret = 0;
1738         for(i = 0; i < len; i++) {
1739             ret += d->drv->chr_write(d->drv, buf+i, 1);
1740             if (buf[i] == '\n') {
1741                 char buf1[64];
1742                 int64_t ti;
1743                 int secs;
1744
1745                 ti = get_clock();
1746                 if (term_timestamps_start == -1)
1747                     term_timestamps_start = ti;
1748                 ti -= term_timestamps_start;
1749                 secs = ti / 1000000000;
1750                 snprintf(buf1, sizeof(buf1),
1751                          "[%02d:%02d:%02d.%03d] ",
1752                          secs / 3600,
1753                          (secs / 60) % 60,
1754                          secs % 60,
1755                          (int)((ti / 1000000) % 1000));
1756                 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
1757             }
1758         }
1759     }
1760     return ret;
1761 }
1762
1763 static char *mux_help[] = {
1764     "% h    print this help\n\r",
1765     "% x    exit emulator\n\r",
1766     "% s    save disk data back to file (if -snapshot)\n\r",
1767     "% t    toggle console timestamps\n\r"
1768     "% b    send break (magic sysrq)\n\r",
1769     "% c    switch between console and monitor\n\r",
1770     "% %  sends %\n\r",
1771     NULL
1772 };
1773
1774 static int term_escape_char = 0x01; /* ctrl-a is used for escape */
1775 static void mux_print_help(CharDriverState *chr)
1776 {
1777     int i, j;
1778     char ebuf[15] = "Escape-Char";
1779     char cbuf[50] = "\n\r";
1780
1781     if (term_escape_char > 0 && term_escape_char < 26) {
1782         sprintf(cbuf,"\n\r");
1783         sprintf(ebuf,"C-%c", term_escape_char - 1 + 'a');
1784     } else {
1785         sprintf(cbuf,"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
1786             term_escape_char);
1787     }
1788     chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
1789     for (i = 0; mux_help[i] != NULL; i++) {
1790         for (j=0; mux_help[i][j] != '\0'; j++) {
1791             if (mux_help[i][j] == '%')
1792                 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
1793             else
1794                 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
1795         }
1796     }
1797 }
1798
1799 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
1800 {
1801     if (d->term_got_escape) {
1802         d->term_got_escape = 0;
1803         if (ch == term_escape_char)
1804             goto send_char;
1805         switch(ch) {
1806         case '?':
1807         case 'h':
1808             mux_print_help(chr);
1809             break;
1810         case 'x':
1811             {
1812                  char *term =  "QEMU: Terminated\n\r";
1813                  chr->chr_write(chr,(uint8_t *)term,strlen(term));
1814                  exit(0);
1815                  break;
1816             }
1817         case 's':
1818             {
1819                 int i;
1820                 for (i = 0; i < nb_drives; i++) {
1821                         bdrv_commit(drives_table[i].bdrv);
1822                 }
1823             }
1824             break;
1825         case 'b':
1826             qemu_chr_event(chr, CHR_EVENT_BREAK);
1827             break;
1828         case 'c':
1829             /* Switch to the next registered device */
1830             chr->focus++;
1831             if (chr->focus >= d->mux_cnt)
1832                 chr->focus = 0;
1833             break;
1834        case 't':
1835            term_timestamps = !term_timestamps;
1836            term_timestamps_start = -1;
1837            break;
1838         }
1839     } else if (ch == term_escape_char) {
1840         d->term_got_escape = 1;
1841     } else {
1842     send_char:
1843         return 1;
1844     }
1845     return 0;
1846 }
1847
1848 static void mux_chr_accept_input(CharDriverState *chr)
1849 {
1850     int m = chr->focus;
1851     MuxDriver *d = chr->opaque;
1852
1853     while (d->prod != d->cons &&
1854            d->chr_can_read[m] &&
1855            d->chr_can_read[m](d->ext_opaque[m])) {
1856         d->chr_read[m](d->ext_opaque[m],
1857                        &d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
1858     }
1859 }
1860
1861 static int mux_chr_can_read(void *opaque)
1862 {
1863     CharDriverState *chr = opaque;
1864     MuxDriver *d = chr->opaque;
1865
1866     if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
1867         return 1;
1868     if (d->chr_can_read[chr->focus])
1869         return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
1870     return 0;
1871 }
1872
1873 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
1874 {
1875     CharDriverState *chr = opaque;
1876     MuxDriver *d = chr->opaque;
1877     int m = chr->focus;
1878     int i;
1879
1880     mux_chr_accept_input (opaque);
1881
1882     for(i = 0; i < size; i++)
1883         if (mux_proc_byte(chr, d, buf[i])) {
1884             if (d->prod == d->cons &&
1885                 d->chr_can_read[m] &&
1886                 d->chr_can_read[m](d->ext_opaque[m]))
1887                 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
1888             else
1889                 d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i];
1890         }
1891 }
1892
1893 static void mux_chr_event(void *opaque, int event)
1894 {
1895     CharDriverState *chr = opaque;
1896     MuxDriver *d = chr->opaque;
1897     int i;
1898
1899     /* Send the event to all registered listeners */
1900     for (i = 0; i < d->mux_cnt; i++)
1901         if (d->chr_event[i])
1902             d->chr_event[i](d->ext_opaque[i], event);
1903 }
1904
1905 static void mux_chr_update_read_handler(CharDriverState *chr)
1906 {
1907     MuxDriver *d = chr->opaque;
1908
1909     if (d->mux_cnt >= MAX_MUX) {
1910         fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
1911         return;
1912     }
1913     d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
1914     d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
1915     d->chr_read[d->mux_cnt] = chr->chr_read;
1916     d->chr_event[d->mux_cnt] = chr->chr_event;
1917     /* Fix up the real driver with mux routines */
1918     if (d->mux_cnt == 0) {
1919         qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
1920                               mux_chr_event, chr);
1921     }
1922     chr->focus = d->mux_cnt;
1923     d->mux_cnt++;
1924 }
1925
1926 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
1927 {
1928     CharDriverState *chr;
1929     MuxDriver *d;
1930
1931     chr = qemu_mallocz(sizeof(CharDriverState));
1932     if (!chr)
1933         return NULL;
1934     d = qemu_mallocz(sizeof(MuxDriver));
1935     if (!d) {
1936         free(chr);
1937         return NULL;
1938     }
1939
1940     chr->opaque = d;
1941     d->drv = drv;
1942     chr->focus = -1;
1943     chr->chr_write = mux_chr_write;
1944     chr->chr_update_read_handler = mux_chr_update_read_handler;
1945     chr->chr_accept_input = mux_chr_accept_input;
1946     return chr;
1947 }
1948
1949
1950 #ifdef _WIN32
1951
1952 static void socket_cleanup(void)
1953 {
1954     WSACleanup();
1955 }
1956
1957 static int socket_init(void)
1958 {
1959     WSADATA Data;
1960     int ret, err;
1961
1962     ret = WSAStartup(MAKEWORD(2,2), &Data);
1963     if (ret != 0) {
1964         err = WSAGetLastError();
1965         fprintf(stderr, "WSAStartup: %d\n", err);
1966         return -1;
1967     }
1968     atexit(socket_cleanup);
1969     return 0;
1970 }
1971
1972 static int send_all(int fd, const uint8_t *buf, int len1)
1973 {
1974     int ret, len;
1975
1976     len = len1;
1977     while (len > 0) {
1978         ret = send(fd, buf, len, 0);
1979         if (ret < 0) {
1980             int errno;
1981             errno = WSAGetLastError();
1982             if (errno != WSAEWOULDBLOCK) {
1983                 return -1;
1984             }
1985         } else if (ret == 0) {
1986             break;
1987         } else {
1988             buf += ret;
1989             len -= ret;
1990         }
1991     }
1992     return len1 - len;
1993 }
1994
1995 void socket_set_nonblock(int fd)
1996 {
1997     unsigned long opt = 1;
1998     ioctlsocket(fd, FIONBIO, &opt);
1999 }
2000
2001 #else
2002
2003 static int unix_write(int fd, const uint8_t *buf, int len1)
2004 {
2005     int ret, len;
2006
2007     len = len1;
2008     while (len > 0) {
2009         ret = write(fd, buf, len);
2010         if (ret < 0) {
2011             if (errno != EINTR && errno != EAGAIN)
2012                 return -1;
2013         } else if (ret == 0) {
2014             break;
2015         } else {
2016             buf += ret;
2017             len -= ret;
2018         }
2019     }
2020     return len1 - len;
2021 }
2022
2023 static inline int send_all(int fd, const uint8_t *buf, int len1)
2024 {
2025     return unix_write(fd, buf, len1);
2026 }
2027
2028 void socket_set_nonblock(int fd)
2029 {
2030     fcntl(fd, F_SETFL, O_NONBLOCK);
2031 }
2032 #endif /* !_WIN32 */
2033
2034 #ifndef _WIN32
2035
2036 typedef struct {
2037     int fd_in, fd_out;
2038     int max_size;
2039 } FDCharDriver;
2040
2041 #define STDIO_MAX_CLIENTS 1
2042 static int stdio_nb_clients = 0;
2043
2044 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2045 {
2046     FDCharDriver *s = chr->opaque;
2047     return unix_write(s->fd_out, buf, len);
2048 }
2049
2050 static int fd_chr_read_poll(void *opaque)
2051 {
2052     CharDriverState *chr = opaque;
2053     FDCharDriver *s = chr->opaque;
2054
2055     s->max_size = qemu_chr_can_read(chr);
2056     return s->max_size;
2057 }
2058
2059 static void fd_chr_read(void *opaque)
2060 {
2061     CharDriverState *chr = opaque;
2062     FDCharDriver *s = chr->opaque;
2063     int size, len;
2064     uint8_t buf[1024];
2065
2066     len = sizeof(buf);
2067     if (len > s->max_size)
2068         len = s->max_size;
2069     if (len == 0)
2070         return;
2071     size = read(s->fd_in, buf, len);
2072     if (size == 0) {
2073         /* FD has been closed. Remove it from the active list.  */
2074         qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
2075         return;
2076     }
2077     if (size > 0) {
2078         qemu_chr_read(chr, buf, size);
2079     }
2080 }
2081
2082 static void fd_chr_update_read_handler(CharDriverState *chr)
2083 {
2084     FDCharDriver *s = chr->opaque;
2085
2086     if (s->fd_in >= 0) {
2087         if (nographic && s->fd_in == 0) {
2088         } else {
2089             qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
2090                                  fd_chr_read, NULL, chr);
2091         }
2092     }
2093 }
2094
2095 static void fd_chr_close(struct CharDriverState *chr)
2096 {
2097     FDCharDriver *s = chr->opaque;
2098
2099     if (s->fd_in >= 0) {
2100         if (nographic && s->fd_in == 0) {
2101         } else {
2102             qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
2103         }
2104     }
2105
2106     qemu_free(s);
2107 }
2108
2109 /* open a character device to a unix fd */
2110 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
2111 {
2112     CharDriverState *chr;
2113     FDCharDriver *s;
2114
2115     chr = qemu_mallocz(sizeof(CharDriverState));
2116     if (!chr)
2117         return NULL;
2118     s = qemu_mallocz(sizeof(FDCharDriver));
2119     if (!s) {
2120         free(chr);
2121         return NULL;
2122     }
2123     s->fd_in = fd_in;
2124     s->fd_out = fd_out;
2125     chr->opaque = s;
2126     chr->chr_write = fd_chr_write;
2127     chr->chr_update_read_handler = fd_chr_update_read_handler;
2128     chr->chr_close = fd_chr_close;
2129
2130     qemu_chr_reset(chr);
2131
2132     return chr;
2133 }
2134
2135 static CharDriverState *qemu_chr_open_file_out(const char *file_out)
2136 {
2137     int fd_out;
2138
2139     TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
2140     if (fd_out < 0)
2141         return NULL;
2142     return qemu_chr_open_fd(-1, fd_out);
2143 }
2144
2145 static CharDriverState *qemu_chr_open_pipe(const char *filename)
2146 {
2147     int fd_in, fd_out;
2148     char filename_in[256], filename_out[256];
2149
2150     snprintf(filename_in, 256, "%s.in", filename);
2151     snprintf(filename_out, 256, "%s.out", filename);
2152     TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
2153     TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
2154     if (fd_in < 0 || fd_out < 0) {
2155         if (fd_in >= 0)
2156             close(fd_in);
2157         if (fd_out >= 0)
2158             close(fd_out);
2159         TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
2160         if (fd_in < 0)
2161             return NULL;
2162     }
2163     return qemu_chr_open_fd(fd_in, fd_out);
2164 }
2165
2166
2167 /* for STDIO, we handle the case where several clients use it
2168    (nographic mode) */
2169
2170 #define TERM_FIFO_MAX_SIZE 1
2171
2172 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
2173 static int term_fifo_size;
2174
2175 static int stdio_read_poll(void *opaque)
2176 {
2177     CharDriverState *chr = opaque;
2178
2179     /* try to flush the queue if needed */
2180     if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
2181         qemu_chr_read(chr, term_fifo, 1);
2182         term_fifo_size = 0;
2183     }
2184     /* see if we can absorb more chars */
2185     if (term_fifo_size == 0)
2186         return 1;
2187     else
2188         return 0;
2189 }
2190
2191 static void stdio_read(void *opaque)
2192 {
2193     int size;
2194     uint8_t buf[1];
2195     CharDriverState *chr = opaque;
2196
2197     size = read(0, buf, 1);
2198     if (size == 0) {
2199         /* stdin has been closed. Remove it from the active list.  */
2200         qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
2201         return;
2202     }
2203     if (size > 0) {
2204         if (qemu_chr_can_read(chr) > 0) {
2205             qemu_chr_read(chr, buf, 1);
2206         } else if (term_fifo_size == 0) {
2207             term_fifo[term_fifo_size++] = buf[0];
2208         }
2209     }
2210 }
2211
2212 /* init terminal so that we can grab keys */
2213 static struct termios oldtty;
2214 static int old_fd0_flags;
2215 static int term_atexit_done;
2216
2217 static void term_exit(void)
2218 {
2219     tcsetattr (0, TCSANOW, &oldtty);
2220     fcntl(0, F_SETFL, old_fd0_flags);
2221 }
2222
2223 static void term_init(void)
2224 {
2225     struct termios tty;
2226
2227     tcgetattr (0, &tty);
2228     oldtty = tty;
2229     old_fd0_flags = fcntl(0, F_GETFL);
2230
2231     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
2232                           |INLCR|IGNCR|ICRNL|IXON);
2233     tty.c_oflag |= OPOST;
2234     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
2235     /* if graphical mode, we allow Ctrl-C handling */
2236     if (nographic)
2237         tty.c_lflag &= ~ISIG;
2238     tty.c_cflag &= ~(CSIZE|PARENB);
2239     tty.c_cflag |= CS8;
2240     tty.c_cc[VMIN] = 1;
2241     tty.c_cc[VTIME] = 0;
2242
2243     tcsetattr (0, TCSANOW, &tty);
2244
2245     if (!term_atexit_done++)
2246         atexit(term_exit);
2247
2248     fcntl(0, F_SETFL, O_NONBLOCK);
2249 }
2250
2251 static void qemu_chr_close_stdio(struct CharDriverState *chr)
2252 {
2253     term_exit();
2254     stdio_nb_clients--;
2255     qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
2256     fd_chr_close(chr);
2257 }
2258
2259 static CharDriverState *qemu_chr_open_stdio(void)
2260 {
2261     CharDriverState *chr;
2262
2263     if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
2264         return NULL;
2265     chr = qemu_chr_open_fd(0, 1);
2266     chr->chr_close = qemu_chr_close_stdio;
2267     qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
2268     stdio_nb_clients++;
2269     term_init();
2270
2271     return chr;
2272 }
2273
2274 #if defined(__linux__) || defined(__sun__)
2275 static CharDriverState *qemu_chr_open_pty(void)
2276 {
2277     struct termios tty;
2278     char slave_name[1024];
2279     int master_fd, slave_fd;
2280
2281 #if defined(__linux__)
2282     /* Not satisfying */
2283     if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
2284         return NULL;
2285     }
2286 #endif
2287
2288     /* Disabling local echo and line-buffered output */
2289     tcgetattr (master_fd, &tty);
2290     tty.c_lflag &= ~(ECHO|ICANON|ISIG);
2291     tty.c_cc[VMIN] = 1;
2292     tty.c_cc[VTIME] = 0;
2293     tcsetattr (master_fd, TCSAFLUSH, &tty);
2294
2295     fprintf(stderr, "char device redirected to %s\n", slave_name);
2296     return qemu_chr_open_fd(master_fd, master_fd);
2297 }
2298
2299 static void tty_serial_init(int fd, int speed,
2300                             int parity, int data_bits, int stop_bits)
2301 {
2302     struct termios tty;
2303     speed_t spd;
2304
2305 #if 0
2306     printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
2307            speed, parity, data_bits, stop_bits);
2308 #endif
2309     tcgetattr (fd, &tty);
2310
2311 #define MARGIN 1.1
2312     if (speed <= 50 * MARGIN)
2313         spd = B50;
2314     else if (speed <= 75 * MARGIN)
2315         spd = B75;
2316     else if (speed <= 300 * MARGIN)
2317         spd = B300;
2318     else if (speed <= 600 * MARGIN)
2319         spd = B600;
2320     else if (speed <= 1200 * MARGIN)
2321         spd = B1200;
2322     else if (speed <= 2400 * MARGIN)
2323         spd = B2400;
2324     else if (speed <= 4800 * MARGIN)
2325         spd = B4800;
2326     else if (speed <= 9600 * MARGIN)
2327         spd = B9600;
2328     else if (speed <= 19200 * MARGIN)
2329         spd = B19200;
2330     else if (speed <= 38400 * MARGIN)
2331         spd = B38400;
2332     else if (speed <= 57600 * MARGIN)
2333         spd = B57600;
2334     else if (speed <= 115200 * MARGIN)
2335         spd = B115200;
2336     else
2337         spd = B115200;
2338
2339     cfsetispeed(&tty, spd);
2340     cfsetospeed(&tty, spd);
2341
2342     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
2343                           |INLCR|IGNCR|ICRNL|IXON);
2344     tty.c_oflag |= OPOST;
2345     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
2346     tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
2347     switch(data_bits) {
2348     default:
2349     case 8:
2350         tty.c_cflag |= CS8;
2351         break;
2352     case 7:
2353         tty.c_cflag |= CS7;
2354         break;
2355     case 6:
2356         tty.c_cflag |= CS6;
2357         break;
2358     case 5:
2359         tty.c_cflag |= CS5;
2360         break;
2361     }
2362     switch(parity) {
2363     default:
2364     case 'N':
2365         break;
2366     case 'E':
2367         tty.c_cflag |= PARENB;
2368         break;
2369     case 'O':
2370         tty.c_cflag |= PARENB | PARODD;
2371         break;
2372     }
2373     if (stop_bits == 2)
2374         tty.c_cflag |= CSTOPB;
2375
2376     tcsetattr (fd, TCSANOW, &tty);
2377 }
2378
2379 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
2380 {
2381     FDCharDriver *s = chr->opaque;
2382
2383     switch(cmd) {
2384     case CHR_IOCTL_SERIAL_SET_PARAMS:
2385         {
2386             QEMUSerialSetParams *ssp = arg;
2387             tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
2388                             ssp->data_bits, ssp->stop_bits);
2389         }
2390         break;
2391     case CHR_IOCTL_SERIAL_SET_BREAK:
2392         {
2393             int enable = *(int *)arg;
2394             if (enable)
2395                 tcsendbreak(s->fd_in, 1);
2396         }
2397         break;
2398     default:
2399         return -ENOTSUP;
2400     }
2401     return 0;
2402 }
2403
2404 static CharDriverState *qemu_chr_open_tty(const char *filename)
2405 {
2406     CharDriverState *chr;
2407     int fd;
2408
2409     TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
2410     fcntl(fd, F_SETFL, O_NONBLOCK);
2411     tty_serial_init(fd, 115200, 'N', 8, 1);
2412     chr = qemu_chr_open_fd(fd, fd);
2413     if (!chr) {
2414         close(fd);
2415         return NULL;
2416     }
2417     chr->chr_ioctl = tty_serial_ioctl;
2418     qemu_chr_reset(chr);
2419     return chr;
2420 }
2421 #else  /* ! __linux__ && ! __sun__ */
2422 static CharDriverState *qemu_chr_open_pty(void)
2423 {
2424     return NULL;
2425 }
2426 #endif /* __linux__ || __sun__ */
2427
2428 #if defined(__linux__)
2429 typedef struct {
2430     int fd;
2431     int mode;
2432 } ParallelCharDriver;
2433
2434 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
2435 {
2436     if (s->mode != mode) {
2437         int m = mode;
2438         if (ioctl(s->fd, PPSETMODE, &m) < 0)
2439             return 0;
2440         s->mode = mode;
2441     }
2442     return 1;
2443 }
2444
2445 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
2446 {
2447     ParallelCharDriver *drv = chr->opaque;
2448     int fd = drv->fd;
2449     uint8_t b;
2450
2451     switch(cmd) {
2452     case CHR_IOCTL_PP_READ_DATA:
2453         if (ioctl(fd, PPRDATA, &b) < 0)
2454             return -ENOTSUP;
2455         *(uint8_t *)arg = b;
2456         break;
2457     case CHR_IOCTL_PP_WRITE_DATA:
2458         b = *(uint8_t *)arg;
2459         if (ioctl(fd, PPWDATA, &b) < 0)
2460             return -ENOTSUP;
2461         break;
2462     case CHR_IOCTL_PP_READ_CONTROL:
2463         if (ioctl(fd, PPRCONTROL, &b) < 0)
2464             return -ENOTSUP;
2465         /* Linux gives only the lowest bits, and no way to know data
2466            direction! For better compatibility set the fixed upper
2467            bits. */
2468         *(uint8_t *)arg = b | 0xc0;
2469         break;
2470     case CHR_IOCTL_PP_WRITE_CONTROL:
2471         b = *(uint8_t *)arg;
2472         if (ioctl(fd, PPWCONTROL, &b) < 0)
2473             return -ENOTSUP;
2474         break;
2475     case CHR_IOCTL_PP_READ_STATUS:
2476         if (ioctl(fd, PPRSTATUS, &b) < 0)
2477             return -ENOTSUP;
2478         *(uint8_t *)arg = b;
2479         break;
2480     case CHR_IOCTL_PP_EPP_READ_ADDR:
2481         if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
2482             struct ParallelIOArg *parg = arg;
2483             int n = read(fd, parg->buffer, parg->count);
2484             if (n != parg->count) {
2485                 return -EIO;
2486             }
2487         }
2488         break;
2489     case CHR_IOCTL_PP_EPP_READ:
2490         if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
2491             struct ParallelIOArg *parg = arg;
2492             int n = read(fd, parg->buffer, parg->count);
2493             if (n != parg->count) {
2494                 return -EIO;
2495             }
2496         }
2497         break;
2498     case CHR_IOCTL_PP_EPP_WRITE_ADDR:
2499         if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
2500             struct ParallelIOArg *parg = arg;
2501             int n = write(fd, parg->buffer, parg->count);
2502             if (n != parg->count) {
2503                 return -EIO;
2504             }
2505         }
2506         break;
2507     case CHR_IOCTL_PP_EPP_WRITE:
2508         if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
2509             struct ParallelIOArg *parg = arg;
2510             int n = write(fd, parg->buffer, parg->count);
2511             if (n != parg->count) {
2512                 return -EIO;
2513             }
2514         }
2515         break;
2516     default:
2517         return -ENOTSUP;
2518     }
2519     return 0;
2520 }
2521
2522 static void pp_close(CharDriverState *chr)
2523 {
2524     ParallelCharDriver *drv = chr->opaque;
2525     int fd = drv->fd;
2526
2527     pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
2528     ioctl(fd, PPRELEASE);
2529     close(fd);
2530     qemu_free(drv);
2531 }
2532
2533 static CharDriverState *qemu_chr_open_pp(const char *filename)
2534 {
2535     CharDriverState *chr;
2536     ParallelCharDriver *drv;
2537     int fd;
2538
2539     TFR(fd = open(filename, O_RDWR));
2540     if (fd < 0)
2541         return NULL;
2542
2543     if (ioctl(fd, PPCLAIM) < 0) {
2544         close(fd);
2545         return NULL;
2546     }
2547
2548     drv = qemu_mallocz(sizeof(ParallelCharDriver));
2549     if (!drv) {
2550         close(fd);
2551         return NULL;
2552     }
2553     drv->fd = fd;
2554     drv->mode = IEEE1284_MODE_COMPAT;
2555
2556     chr = qemu_mallocz(sizeof(CharDriverState));
2557     if (!chr) {
2558         qemu_free(drv);
2559         close(fd);
2560         return NULL;
2561     }
2562     chr->chr_write = null_chr_write;
2563     chr->chr_ioctl = pp_ioctl;
2564     chr->chr_close = pp_close;
2565     chr->opaque = drv;
2566
2567     qemu_chr_reset(chr);
2568
2569     return chr;
2570 }
2571 #endif /* __linux__ */
2572
2573 #else /* _WIN32 */
2574
2575 typedef struct {
2576     int max_size;
2577     HANDLE hcom, hrecv, hsend;
2578     OVERLAPPED orecv, osend;
2579     BOOL fpipe;
2580     DWORD len;
2581 } WinCharState;
2582
2583 #define NSENDBUF 2048
2584 #define NRECVBUF 2048
2585 #define MAXCONNECT 1
2586 #define NTIMEOUT 5000
2587
2588 static int win_chr_poll(void *opaque);
2589 static int win_chr_pipe_poll(void *opaque);
2590
2591 static void win_chr_close(CharDriverState *chr)
2592 {
2593     WinCharState *s = chr->opaque;
2594
2595     if (s->hsend) {
2596         CloseHandle(s->hsend);
2597         s->hsend = NULL;
2598     }
2599     if (s->hrecv) {
2600         CloseHandle(s->hrecv);
2601         s->hrecv = NULL;
2602     }
2603     if (s->hcom) {
2604         CloseHandle(s->hcom);
2605         s->hcom = NULL;
2606     }
2607     if (s->fpipe)
2608         qemu_del_polling_cb(win_chr_pipe_poll, chr);
2609     else
2610         qemu_del_polling_cb(win_chr_poll, chr);
2611 }
2612
2613 static int win_chr_init(CharDriverState *chr, const char *filename)
2614 {
2615     WinCharState *s = chr->opaque;
2616     COMMCONFIG comcfg;
2617     COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
2618     COMSTAT comstat;
2619     DWORD size;
2620     DWORD err;
2621
2622     s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
2623     if (!s->hsend) {
2624         fprintf(stderr, "Failed CreateEvent\n");
2625         goto fail;
2626     }
2627     s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
2628     if (!s->hrecv) {
2629         fprintf(stderr, "Failed CreateEvent\n");
2630         goto fail;
2631     }
2632
2633     s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
2634                       OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
2635     if (s->hcom == INVALID_HANDLE_VALUE) {
2636         fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
2637         s->hcom = NULL;
2638         goto fail;
2639     }
2640
2641     if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
2642         fprintf(stderr, "Failed SetupComm\n");
2643         goto fail;
2644     }
2645
2646     ZeroMemory(&comcfg, sizeof(COMMCONFIG));
2647     size = sizeof(COMMCONFIG);
2648     GetDefaultCommConfig(filename, &comcfg, &size);
2649     comcfg.dcb.DCBlength = sizeof(DCB);
2650     CommConfigDialog(filename, NULL, &comcfg);
2651
2652     if (!SetCommState(s->hcom, &comcfg.dcb)) {
2653         fprintf(stderr, "Failed SetCommState\n");
2654         goto fail;
2655     }
2656
2657     if (!SetCommMask(s->hcom, EV_ERR)) {
2658         fprintf(stderr, "Failed SetCommMask\n");
2659         goto fail;
2660     }
2661
2662     cto.ReadIntervalTimeout = MAXDWORD;
2663     if (!SetCommTimeouts(s->hcom, &cto)) {
2664         fprintf(stderr, "Failed SetCommTimeouts\n");
2665         goto fail;
2666     }
2667
2668     if (!ClearCommError(s->hcom, &err, &comstat)) {
2669         fprintf(stderr, "Failed ClearCommError\n");
2670         goto fail;
2671     }
2672     qemu_add_polling_cb(win_chr_poll, chr);
2673     return 0;
2674
2675  fail:
2676     win_chr_close(chr);
2677     return -1;
2678 }
2679
2680 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
2681 {
2682     WinCharState *s = chr->opaque;
2683     DWORD len, ret, size, err;
2684
2685     len = len1;
2686     ZeroMemory(&s->osend, sizeof(s->osend));
2687     s->osend.hEvent = s->hsend;
2688     while (len > 0) {
2689         if (s->hsend)
2690             ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
2691         else
2692             ret = WriteFile(s->hcom, buf, len, &size, NULL);
2693         if (!ret) {
2694             err = GetLastError();
2695             if (err == ERROR_IO_PENDING) {
2696                 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
2697                 if (ret) {
2698                     buf += size;
2699                     len -= size;
2700                 } else {
2701                     break;
2702                 }
2703             } else {
2704                 break;
2705             }
2706         } else {
2707             buf += size;
2708             len -= size;
2709         }
2710     }
2711     return len1 - len;
2712 }
2713
2714 static int win_chr_read_poll(CharDriverState *chr)
2715 {
2716     WinCharState *s = chr->opaque;
2717
2718     s->max_size = qemu_chr_can_read(chr);
2719     return s->max_size;
2720 }
2721
2722 static void win_chr_readfile(CharDriverState *chr)
2723 {
2724     WinCharState *s = chr->opaque;
2725     int ret, err;
2726     uint8_t buf[1024];
2727     DWORD size;
2728
2729     ZeroMemory(&s->orecv, sizeof(s->orecv));
2730     s->orecv.hEvent = s->hrecv;
2731     ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
2732     if (!ret) {
2733         err = GetLastError();
2734         if (err == ERROR_IO_PENDING) {
2735             ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
2736         }
2737     }
2738
2739     if (size > 0) {
2740         qemu_chr_read(chr, buf, size);
2741     }
2742 }
2743
2744 static void win_chr_read(CharDriverState *chr)
2745 {
2746     WinCharState *s = chr->opaque;
2747
2748     if (s->len > s->max_size)
2749         s->len = s->max_size;
2750     if (s->len == 0)
2751         return;
2752
2753     win_chr_readfile(chr);
2754 }
2755
2756 static int win_chr_poll(void *opaque)
2757 {
2758     CharDriverState *chr = opaque;
2759     WinCharState *s = chr->opaque;
2760     COMSTAT status;
2761     DWORD comerr;
2762
2763     ClearCommError(s->hcom, &comerr, &status);
2764     if (status.cbInQue > 0) {
2765         s->len = status.cbInQue;
2766         win_chr_read_poll(chr);
2767         win_chr_read(chr);
2768         return 1;
2769     }
2770     return 0;
2771 }
2772
2773 static CharDriverState *qemu_chr_open_win(const char *filename)
2774 {
2775     CharDriverState *chr;
2776     WinCharState *s;
2777
2778     chr = qemu_mallocz(sizeof(CharDriverState));
2779     if (!chr)
2780         return NULL;
2781     s = qemu_mallocz(sizeof(WinCharState));
2782     if (!s) {
2783         free(chr);
2784         return NULL;
2785     }
2786     chr->opaque = s;
2787     chr->chr_write = win_chr_write;
2788     chr->chr_close = win_chr_close;
2789
2790     if (win_chr_init(chr, filename) < 0) {
2791         free(s);
2792         free(chr);
2793         return NULL;
2794     }
2795     qemu_chr_reset(chr);
2796     return chr;
2797 }
2798
2799 static int win_chr_pipe_poll(void *opaque)
2800 {
2801     CharDriverState *chr = opaque;
2802     WinCharState *s = chr->opaque;
2803     DWORD size;
2804
2805     PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
2806     if (size > 0) {
2807         s->len = size;
2808         win_chr_read_poll(chr);
2809         win_chr_read(chr);
2810         return 1;
2811     }
2812     return 0;
2813 }
2814
2815 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
2816 {
2817     WinCharState *s = chr->opaque;
2818     OVERLAPPED ov;
2819     int ret;
2820     DWORD size;
2821     char openname[256];
2822
2823     s->fpipe = TRUE;
2824
2825     s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
2826     if (!s->hsend) {
2827         fprintf(stderr, "Failed CreateEvent\n");
2828         goto fail;
2829     }
2830     s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
2831     if (!s->hrecv) {
2832         fprintf(stderr, "Failed CreateEvent\n");
2833         goto fail;
2834     }
2835
2836     snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
2837     s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
2838                               PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
2839                               PIPE_WAIT,
2840                               MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
2841     if (s->hcom == INVALID_HANDLE_VALUE) {
2842         fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
2843         s->hcom = NULL;
2844         goto fail;
2845     }
2846
2847     ZeroMemory(&ov, sizeof(ov));
2848     ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
2849     ret = ConnectNamedPipe(s->hcom, &ov);
2850     if (ret) {
2851         fprintf(stderr, "Failed ConnectNamedPipe\n");
2852         goto fail;
2853     }
2854
2855     ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
2856     if (!ret) {
2857         fprintf(stderr, "Failed GetOverlappedResult\n");
2858         if (ov.hEvent) {
2859             CloseHandle(ov.hEvent);
2860             ov.hEvent = NULL;
2861         }
2862         goto fail;
2863     }
2864
2865     if (ov.hEvent) {
2866         CloseHandle(ov.hEvent);
2867         ov.hEvent = NULL;
2868     }
2869     qemu_add_polling_cb(win_chr_pipe_poll, chr);
2870     return 0;
2871
2872  fail:
2873     win_chr_close(chr);
2874     return -1;
2875 }
2876
2877
2878 static CharDriverState *qemu_chr_open_win_pipe(const char *filename)
2879 {
2880     CharDriverState *chr;
2881     WinCharState *s;
2882
2883     chr = qemu_mallocz(sizeof(CharDriverState));
2884     if (!chr)
2885         return NULL;
2886     s = qemu_mallocz(sizeof(WinCharState));
2887     if (!s) {
2888         free(chr);
2889         return NULL;
2890     }
2891     chr->opaque = s;
2892     chr->chr_write = win_chr_write;
2893     chr->chr_close = win_chr_close;
2894
2895     if (win_chr_pipe_init(chr, filename) < 0) {
2896         free(s);
2897         free(chr);
2898         return NULL;
2899     }
2900     qemu_chr_reset(chr);
2901     return chr;
2902 }
2903
2904 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
2905 {
2906     CharDriverState *chr;
2907     WinCharState *s;
2908
2909     chr = qemu_mallocz(sizeof(CharDriverState));
2910     if (!chr)
2911         return NULL;
2912     s = qemu_mallocz(sizeof(WinCharState));
2913     if (!s) {
2914         free(chr);
2915         return NULL;
2916     }
2917     s->hcom = fd_out;
2918     chr->opaque = s;
2919     chr->chr_write = win_chr_write;
2920     qemu_chr_reset(chr);
2921     return chr;
2922 }
2923
2924 static CharDriverState *qemu_chr_open_win_con(const char *filename)
2925 {
2926     return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
2927 }
2928
2929 static CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
2930 {
2931     HANDLE fd_out;
2932
2933     fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
2934                         OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
2935     if (fd_out == INVALID_HANDLE_VALUE)
2936         return NULL;
2937
2938     return qemu_chr_open_win_file(fd_out);
2939 }
2940 #endif /* !_WIN32 */
2941
2942 /***********************************************************/
2943 /* UDP Net console */
2944
2945 typedef struct {
2946     int fd;
2947     struct sockaddr_in daddr;
2948     uint8_t buf[1024];
2949     int bufcnt;
2950     int bufptr;
2951     int max_size;
2952 } NetCharDriver;
2953
2954 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2955 {
2956     NetCharDriver *s = chr->opaque;
2957
2958     return sendto(s->fd, buf, len, 0,
2959                   (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in));
2960 }
2961
2962 static int udp_chr_read_poll(void *opaque)
2963 {
2964     CharDriverState *chr = opaque;
2965     NetCharDriver *s = chr->opaque;
2966
2967     s->max_size = qemu_chr_can_read(chr);
2968
2969     /* If there were any stray characters in the queue process them
2970      * first
2971      */
2972     while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2973         qemu_chr_read(chr, &s->buf[s->bufptr], 1);
2974         s->bufptr++;
2975         s->max_size = qemu_chr_can_read(chr);
2976     }
2977     return s->max_size;
2978 }
2979
2980 static void udp_chr_read(void *opaque)
2981 {
2982     CharDriverState *chr = opaque;
2983     NetCharDriver *s = chr->opaque;
2984
2985     if (s->max_size == 0)
2986         return;
2987     s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0);
2988     s->bufptr = s->bufcnt;
2989     if (s->bufcnt <= 0)
2990         return;
2991
2992     s->bufptr = 0;
2993     while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2994         qemu_chr_read(chr, &s->buf[s->bufptr], 1);
2995         s->bufptr++;
2996         s->max_size = qemu_chr_can_read(chr);
2997     }
2998 }
2999
3000 static void udp_chr_update_read_handler(CharDriverState *chr)
3001 {
3002     NetCharDriver *s = chr->opaque;
3003
3004     if (s->fd >= 0) {
3005         qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
3006                              udp_chr_read, NULL, chr);
3007     }
3008 }
3009
3010 int parse_host_port(struct sockaddr_in *saddr, const char *str);
3011 #ifndef _WIN32
3012 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str);
3013 #endif
3014 int parse_host_src_port(struct sockaddr_in *haddr,
3015                         struct sockaddr_in *saddr,
3016                         const char *str);
3017
3018 static CharDriverState *qemu_chr_open_udp(const char *def)
3019 {
3020     CharDriverState *chr = NULL;
3021     NetCharDriver *s = NULL;
3022     int fd = -1;
3023     struct sockaddr_in saddr;
3024
3025     chr = qemu_mallocz(sizeof(CharDriverState));
3026     if (!chr)
3027         goto return_err;
3028     s = qemu_mallocz(sizeof(NetCharDriver));
3029     if (!s)
3030         goto return_err;
3031
3032     fd = socket(PF_INET, SOCK_DGRAM, 0);
3033     if (fd < 0) {
3034         perror("socket(PF_INET, SOCK_DGRAM)");
3035         goto return_err;
3036     }
3037
3038     if (parse_host_src_port(&s->daddr, &saddr, def) < 0) {
3039         printf("Could not parse: %s\n", def);
3040         goto return_err;
3041     }
3042
3043     if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0)
3044     {
3045         perror("bind");
3046         goto return_err;
3047     }
3048
3049     s->fd = fd;
3050     s->bufcnt = 0;
3051     s->bufptr = 0;
3052     chr->opaque = s;
3053     chr->chr_write = udp_chr_write;
3054     chr->chr_update_read_handler = udp_chr_update_read_handler;
3055     return chr;
3056
3057 return_err:
3058     if (chr)
3059         free(chr);
3060     if (s)
3061         free(s);
3062     if (fd >= 0)
3063         closesocket(fd);
3064     return NULL;
3065 }
3066
3067 /***********************************************************/
3068 /* TCP Net console */
3069
3070 typedef struct {
3071     int fd, listen_fd;
3072     int connected;
3073     int max_size;
3074     int do_telnetopt;
3075     int do_nodelay;
3076     int is_unix;
3077 } TCPCharDriver;
3078
3079 static void tcp_chr_accept(void *opaque);
3080
3081 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
3082 {
3083     TCPCharDriver *s = chr->opaque;
3084     if (s->connected) {
3085         return send_all(s->fd, buf, len);
3086     } else {
3087         /* XXX: indicate an error ? */
3088         return len;
3089     }
3090 }
3091
3092 static int tcp_chr_read_poll(void *opaque)
3093 {
3094     CharDriverState *chr = opaque;
3095     TCPCharDriver *s = chr->opaque;
3096     if (!s->connected)
3097         return 0;
3098     s->max_size = qemu_chr_can_read(chr);
3099     return s->max_size;
3100 }
3101
3102 #define IAC 255
3103 #define IAC_BREAK 243
3104 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
3105                                       TCPCharDriver *s,
3106                                       uint8_t *buf, int *size)
3107 {
3108     /* Handle any telnet client's basic IAC options to satisfy char by
3109      * char mode with no echo.  All IAC options will be removed from
3110      * the buf and the do_telnetopt variable will be used to track the
3111      * state of the width of the IAC information.
3112      *
3113      * IAC commands come in sets of 3 bytes with the exception of the
3114      * "IAC BREAK" command and the double IAC.
3115      */
3116
3117     int i;
3118     int j = 0;
3119
3120     for (i = 0; i < *size; i++) {
3121         if (s->do_telnetopt > 1) {
3122             if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
3123                 /* Double IAC means send an IAC */
3124                 if (j != i)
3125                     buf[j] = buf[i];
3126                 j++;
3127                 s->do_telnetopt = 1;
3128             } else {
3129                 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
3130                     /* Handle IAC break commands by sending a serial break */
3131                     qemu_chr_event(chr, CHR_EVENT_BREAK);
3132                     s->do_telnetopt++;
3133                 }
3134                 s->do_telnetopt++;
3135             }
3136             if (s->do_telnetopt >= 4) {
3137                 s->do_telnetopt = 1;
3138             }
3139         } else {
3140             if ((unsigned char)buf[i] == IAC) {
3141                 s->do_telnetopt = 2;
3142             } else {
3143                 if (j != i)
3144                     buf[j] = buf[i];
3145                 j++;
3146             }
3147         }
3148     }
3149     *size = j;
3150 }
3151
3152 static void tcp_chr_read(void *opaque)
3153 {
3154     CharDriverState *chr = opaque;
3155     TCPCharDriver *s = chr->opaque;
3156     uint8_t buf[1024];
3157     int len, size;
3158
3159     if (!s->connected || s->max_size <= 0)
3160         return;
3161     len = sizeof(buf);
3162     if (len > s->max_size)
3163         len = s->max_size;
3164     size = recv(s->fd, buf, len, 0);
3165     if (size == 0) {
3166         /* connection closed */
3167         s->connected = 0;
3168         if (s->listen_fd >= 0) {
3169             qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
3170         }
3171         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
3172         closesocket(s->fd);
3173         s->fd = -1;
3174     } else if (size > 0) {
3175         if (s->do_telnetopt)
3176             tcp_chr_process_IAC_bytes(chr, s, buf, &size);
3177         if (size > 0)
3178             qemu_chr_read(chr, buf, size);
3179     }
3180 }
3181
3182 static void tcp_chr_connect(void *opaque)
3183 {
3184     CharDriverState *chr = opaque;
3185     TCPCharDriver *s = chr->opaque;
3186
3187     s->connected = 1;
3188     qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
3189                          tcp_chr_read, NULL, chr);
3190     qemu_chr_reset(chr);
3191 }
3192
3193 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
3194 static void tcp_chr_telnet_init(int fd)
3195 {
3196     char buf[3];
3197     /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
3198     IACSET(buf, 0xff, 0xfb, 0x01);  /* IAC WILL ECHO */
3199     send(fd, (char *)buf, 3, 0);
3200     IACSET(buf, 0xff, 0xfb, 0x03);  /* IAC WILL Suppress go ahead */
3201     send(fd, (char *)buf, 3, 0);
3202     IACSET(buf, 0xff, 0xfb, 0x00);  /* IAC WILL Binary */
3203     send(fd, (char *)buf, 3, 0);
3204     IACSET(buf, 0xff, 0xfd, 0x00);  /* IAC DO Binary */
3205     send(fd, (char *)buf, 3, 0);
3206 }
3207
3208 static void socket_set_nodelay(int fd)
3209 {
3210     int val = 1;
3211     setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
3212 }
3213
3214 static void tcp_chr_accept(void *opaque)
3215 {
3216     CharDriverState *chr = opaque;
3217     TCPCharDriver *s = chr->opaque;
3218     struct sockaddr_in saddr;
3219 #ifndef _WIN32
3220     struct sockaddr_un uaddr;
3221 #endif
3222     struct sockaddr *addr;
3223     socklen_t len;
3224     int fd;
3225
3226     for(;;) {
3227 #ifndef _WIN32
3228         if (s->is_unix) {
3229             len = sizeof(uaddr);
3230             addr = (struct sockaddr *)&uaddr;
3231         } else
3232 #endif
3233         {
3234             len = sizeof(saddr);
3235             addr = (struct sockaddr *)&saddr;
3236         }
3237         fd = accept(s->listen_fd, addr, &len);
3238         if (fd < 0 && errno != EINTR) {
3239             return;
3240         } else if (fd >= 0) {
3241             if (s->do_telnetopt)
3242                 tcp_chr_telnet_init(fd);
3243             break;
3244         }
3245     }
3246     socket_set_nonblock(fd);
3247     if (s->do_nodelay)
3248         socket_set_nodelay(fd);
3249     s->fd = fd;
3250     qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
3251     tcp_chr_connect(chr);
3252 }
3253
3254 static void tcp_chr_close(CharDriverState *chr)
3255 {
3256     TCPCharDriver *s = chr->opaque;
3257     if (s->fd >= 0)
3258         closesocket(s->fd);
3259     if (s->listen_fd >= 0)
3260         closesocket(s->listen_fd);
3261     qemu_free(s);
3262 }
3263
3264 static CharDriverState *qemu_chr_open_tcp(const char *host_str,
3265                                           int is_telnet,
3266                                           int is_unix)
3267 {
3268     CharDriverState *chr = NULL;
3269     TCPCharDriver *s = NULL;
3270     int fd = -1, ret, err, val;
3271     int is_listen = 0;
3272     int is_waitconnect = 1;
3273     int do_nodelay = 0;
3274     const char *ptr;
3275     struct sockaddr_in saddr;
3276 #ifndef _WIN32
3277     struct sockaddr_un uaddr;
3278 #endif
3279     struct sockaddr *addr;
3280     socklen_t addrlen;
3281
3282 #ifndef _WIN32
3283     if (is_unix) {
3284         addr = (struct sockaddr *)&uaddr;
3285         addrlen = sizeof(uaddr);
3286         if (parse_unix_path(&uaddr, host_str) < 0)
3287             goto fail;
3288     } else
3289 #endif
3290     {
3291         addr = (struct sockaddr *)&saddr;
3292         addrlen = sizeof(saddr);
3293         if (parse_host_port(&saddr, host_str) < 0)
3294             goto fail;
3295     }
3296
3297     ptr = host_str;
3298     while((ptr = strchr(ptr,','))) {
3299         ptr++;
3300         if (!strncmp(ptr,"server",6)) {
3301             is_listen = 1;
3302         } else if (!strncmp(ptr,"nowait",6)) {
3303             is_waitconnect = 0;
3304         } else if (!strncmp(ptr,"nodelay",6)) {
3305             do_nodelay = 1;
3306         } else {
3307             printf("Unknown option: %s\n", ptr);
3308             goto fail;
3309         }
3310     }
3311     if (!is_listen)
3312         is_waitconnect = 0;
3313
3314     chr = qemu_mallocz(sizeof(CharDriverState));
3315     if (!chr)
3316         goto fail;
3317     s = qemu_mallocz(sizeof(TCPCharDriver));
3318     if (!s)
3319         goto fail;
3320
3321 #ifndef _WIN32
3322     if (is_unix)
3323         fd = socket(PF_UNIX, SOCK_STREAM, 0);
3324     else
3325 #endif
3326         fd = socket(PF_INET, SOCK_STREAM, 0);
3327
3328     if (fd < 0)
3329         goto fail;
3330
3331     if (!is_waitconnect)
3332         socket_set_nonblock(fd);
3333
3334     s->connected = 0;
3335     s->fd = -1;
3336     s->listen_fd = -1;
3337     s->is_unix = is_unix;
3338     s->do_nodelay = do_nodelay && !is_unix;
3339
3340     chr->opaque = s;
3341     chr->chr_write = tcp_chr_write;
3342     chr->chr_close = tcp_chr_close;
3343
3344     if (is_listen) {
3345         /* allow fast reuse */
3346 #ifndef _WIN32
3347         if (is_unix) {
3348             char path[109];
3349             strncpy(path, uaddr.sun_path, 108);
3350             path[108] = 0;
3351             unlink(path);
3352         } else
3353 #endif
3354         {
3355             val = 1;
3356             setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
3357         }
3358
3359         ret = bind(fd, addr, addrlen);
3360         if (ret < 0)
3361             goto fail;
3362
3363         ret = listen(fd, 0);
3364         if (ret < 0)
3365             goto fail;
3366
3367         s->listen_fd = fd;
3368         qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
3369         if (is_telnet)
3370             s->do_telnetopt = 1;
3371     } else {
3372         for(;;) {
3373             ret = connect(fd, addr, addrlen);
3374             if (ret < 0) {
3375                 err = socket_error();
3376                 if (err == EINTR || err == EWOULDBLOCK) {
3377                 } else if (err == EINPROGRESS) {
3378                     break;
3379 #ifdef _WIN32
3380                 } else if (err == WSAEALREADY) {
3381                     break;
3382 #endif
3383                 } else {
3384                     goto fail;
3385                 }
3386             } else {
3387                 s->connected = 1;
3388                 break;
3389             }
3390         }
3391         s->fd = fd;
3392         socket_set_nodelay(fd);
3393         if (s->connected)
3394             tcp_chr_connect(chr);
3395         else
3396             qemu_set_fd_handler(s->fd, NULL, tcp_chr_connect, chr);
3397     }
3398
3399     if (is_listen && is_waitconnect) {
3400         printf("QEMU waiting for connection on: %s\n", host_str);
3401         tcp_chr_accept(chr);
3402         socket_set_nonblock(s->listen_fd);
3403     }
3404
3405     return chr;
3406  fail:
3407     if (fd >= 0)
3408         closesocket(fd);
3409     qemu_free(s);
3410     qemu_free(chr);
3411     return NULL;
3412 }
3413
3414 CharDriverState *qemu_chr_open(const char *filename)
3415 {
3416     const char *p;
3417
3418     if (!strcmp(filename, "vc")) {
3419         return text_console_init(&display_state, 0);
3420     } else if (strstart(filename, "vc:", &p)) {
3421         return text_console_init(&display_state, p);
3422     } else if (!strcmp(filename, "null")) {
3423         return qemu_chr_open_null();
3424     } else
3425     if (strstart(filename, "tcp:", &p)) {
3426         return qemu_chr_open_tcp(p, 0, 0);
3427     } else
3428     if (strstart(filename, "telnet:", &p)) {
3429         return qemu_chr_open_tcp(p, 1, 0);
3430     } else
3431     if (strstart(filename, "udp:", &p)) {
3432         return qemu_chr_open_udp(p);
3433     } else
3434     if (strstart(filename, "mon:", &p)) {
3435         CharDriverState *drv = qemu_chr_open(p);
3436         if (drv) {
3437             drv = qemu_chr_open_mux(drv);
3438             monitor_init(drv, !nographic);
3439             return drv;
3440         }
3441         printf("Unable to open driver: %s\n", p);
3442         return 0;
3443     } else
3444 #ifndef _WIN32
3445     if (strstart(filename, "unix:", &p)) {
3446         return qemu_chr_open_tcp(p, 0, 1);
3447     } else if (strstart(filename, "file:", &p)) {
3448         return qemu_chr_open_file_out(p);
3449     } else if (strstart(filename, "pipe:", &p)) {
3450         return qemu_chr_open_pipe(p);
3451     } else if (!strcmp(filename, "pty")) {
3452         return qemu_chr_open_pty();
3453     } else if (!strcmp(filename, "stdio")) {
3454         return qemu_chr_open_stdio();
3455     } else
3456 #if defined(__linux__)
3457     if (strstart(filename, "/dev/parport", NULL)) {
3458         return qemu_chr_open_pp(filename);
3459     } else
3460 #endif
3461 #if defined(__linux__) || defined(__sun__)
3462     if (strstart(filename, "/dev/", NULL)) {
3463         return qemu_chr_open_tty(filename);
3464     } else
3465 #endif
3466 #else /* !_WIN32 */
3467     if (strstart(filename, "COM", NULL)) {
3468         return qemu_chr_open_win(filename);
3469     } else
3470     if (strstart(filename, "pipe:", &p)) {
3471         return qemu_chr_open_win_pipe(p);
3472     } else
3473     if (strstart(filename, "con:", NULL)) {
3474         return qemu_chr_open_win_con(filename);
3475     } else
3476     if (strstart(filename, "file:", &p)) {
3477         return qemu_chr_open_win_file_out(p);
3478     } else
3479 #endif
3480 #ifdef CONFIG_BRLAPI
3481     if (!strcmp(filename, "braille")) {
3482         return chr_baum_init();
3483     } else
3484 #endif
3485     {
3486         return NULL;
3487     }
3488 }
3489
3490 void qemu_chr_close(CharDriverState *chr)
3491 {
3492     if (chr->chr_close)
3493         chr->chr_close(chr);
3494     qemu_free(chr);
3495 }
3496
3497 /***********************************************************/
3498 /* network device redirectors */
3499
3500 __attribute__ (( unused ))
3501 static void hex_dump(FILE *f, const uint8_t *buf, int size)
3502 {
3503     int len, i, j, c;
3504
3505     for(i=0;i<size;i+=16) {
3506         len = size - i;
3507         if (len > 16)
3508             len = 16;
3509         fprintf(f, "%08x ", i);
3510         for(j=0;j<16;j++) {
3511             if (j < len)
3512                 fprintf(f, " %02x", buf[i+j]);
3513             else
3514                 fprintf(f, "   ");
3515         }
3516         fprintf(f, " ");
3517         for(j=0;j<len;j++) {
3518             c = buf[i+j];
3519             if (c < ' ' || c > '~')
3520                 c = '.';
3521             fprintf(f, "%c", c);
3522         }
3523         fprintf(f, "\n");
3524     }
3525 }
3526
3527 static int parse_macaddr(uint8_t *macaddr, const char *p)
3528 {
3529     int i;
3530     char *last_char;
3531     long int offset;
3532
3533     errno = 0;
3534     offset = strtol(p, &last_char, 0);
3535     if (0 == errno && '\0' == *last_char &&
3536             offset >= 0 && offset <= 0xFFFFFF) {
3537         macaddr[3] = (offset & 0xFF0000) >> 16;
3538         macaddr[4] = (offset & 0xFF00) >> 8;
3539         macaddr[5] = offset & 0xFF;
3540         return 0;
3541     } else {
3542         for(i = 0; i < 6; i++) {
3543             macaddr[i] = strtol(p, (char **)&p, 16);
3544             if (i == 5) {
3545                 if (*p != '\0')
3546                     return -1;
3547             } else {
3548                 if (*p != ':' && *p != '-')
3549                     return -1;
3550                 p++;
3551             }
3552         }
3553         return 0;
3554     }
3555
3556     return -1;
3557 }
3558
3559 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
3560 {
3561     const char *p, *p1;
3562     int len;
3563     p = *pp;
3564     p1 = strchr(p, sep);
3565     if (!p1)
3566         return -1;
3567     len = p1 - p;
3568     p1++;
3569     if (buf_size > 0) {
3570         if (len > buf_size - 1)
3571             len = buf_size - 1;
3572         memcpy(buf, p, len);
3573         buf[len] = '\0';
3574     }
3575     *pp = p1;
3576     return 0;
3577 }
3578
3579 int parse_host_src_port(struct sockaddr_in *haddr,
3580                         struct sockaddr_in *saddr,
3581                         const char *input_str)
3582 {
3583     char *str = strdup(input_str);
3584     char *host_str = str;
3585     char *src_str;
3586     char *ptr;
3587
3588     /*
3589      * Chop off any extra arguments at the end of the string which
3590      * would start with a comma, then fill in the src port information
3591      * if it was provided else use the "any address" and "any port".
3592      */
3593     if ((ptr = strchr(str,',')))
3594         *ptr = '\0';
3595
3596     if ((src_str = strchr(input_str,'@'))) {
3597         *src_str = '\0';
3598         src_str++;
3599     }
3600
3601     if (parse_host_port(haddr, host_str) < 0)
3602         goto fail;
3603
3604     if (!src_str || *src_str == '\0')
3605         src_str = ":0";
3606
3607     if (parse_host_port(saddr, src_str) < 0)
3608         goto fail;
3609
3610     free(str);
3611     return(0);
3612
3613 fail:
3614     free(str);
3615     return -1;
3616 }
3617
3618 int parse_host_port(struct sockaddr_in *saddr, const char *str)
3619 {
3620     char buf[512];
3621     struct hostent *he;
3622     const char *p, *r;
3623     int port;
3624
3625     p = str;
3626     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
3627         return -1;
3628     saddr->sin_family = AF_INET;
3629     if (buf[0] == '\0') {
3630         saddr->sin_addr.s_addr = 0;
3631     } else {
3632         if (isdigit(buf[0])) {
3633             if (!inet_aton(buf, &saddr->sin_addr))
3634                 return -1;
3635         } else {
3636             if ((he = gethostbyname(buf)) == NULL)
3637                 return - 1;
3638             saddr->sin_addr = *(struct in_addr *)he->h_addr;
3639         }
3640     }
3641     port = strtol(p, (char **)&r, 0);
3642     if (r == p)
3643         return -1;
3644     saddr->sin_port = htons(port);
3645     return 0;
3646 }
3647
3648 #ifndef _WIN32
3649 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
3650 {
3651     const char *p;
3652     int len;
3653
3654     len = MIN(108, strlen(str));
3655     p = strchr(str, ',');
3656     if (p)
3657         len = MIN(len, p - str);
3658
3659     memset(uaddr, 0, sizeof(*uaddr));
3660
3661     uaddr->sun_family = AF_UNIX;
3662     memcpy(uaddr->sun_path, str, len);
3663
3664     return 0;
3665 }
3666 #endif
3667
3668 /* find or alloc a new VLAN */
3669 VLANState *qemu_find_vlan(int id)
3670 {
3671     VLANState **pvlan, *vlan;
3672     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
3673         if (vlan->id == id)
3674             return vlan;
3675     }
3676     vlan = qemu_mallocz(sizeof(VLANState));
3677     if (!vlan)
3678         return NULL;
3679     vlan->id = id;
3680     vlan->next = NULL;
3681     pvlan = &first_vlan;
3682     while (*pvlan != NULL)
3683         pvlan = &(*pvlan)->next;
3684     *pvlan = vlan;
3685     return vlan;
3686 }
3687
3688 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
3689                                       IOReadHandler *fd_read,
3690                                       IOCanRWHandler *fd_can_read,
3691                                       void *opaque)
3692 {
3693     VLANClientState *vc, **pvc;
3694     vc = qemu_mallocz(sizeof(VLANClientState));
3695     if (!vc)
3696         return NULL;
3697     vc->fd_read = fd_read;
3698     vc->fd_can_read = fd_can_read;
3699     vc->opaque = opaque;
3700     vc->vlan = vlan;
3701
3702     vc->next = NULL;
3703     pvc = &vlan->first_client;
3704     while (*pvc != NULL)
3705         pvc = &(*pvc)->next;
3706     *pvc = vc;
3707     return vc;
3708 }
3709
3710 int qemu_can_send_packet(VLANClientState *vc1)
3711 {
3712     VLANState *vlan = vc1->vlan;
3713     VLANClientState *vc;
3714
3715     for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
3716         if (vc != vc1) {
3717             if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
3718                 return 1;
3719         }
3720     }
3721     return 0;
3722 }
3723
3724 void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
3725 {
3726     VLANState *vlan = vc1->vlan;
3727     VLANClientState *vc;
3728
3729 #if 0
3730     printf("vlan %d send:\n", vlan->id);
3731     hex_dump(stdout, buf, size);
3732 #endif
3733     for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
3734         if (vc != vc1) {
3735             vc->fd_read(vc->opaque, buf, size);
3736         }
3737     }
3738 }
3739
3740 #if defined(CONFIG_SLIRP)
3741
3742 /* slirp network adapter */
3743
3744 static int slirp_inited;
3745 static VLANClientState *slirp_vc;
3746
3747 int slirp_can_output(void)
3748 {
3749     return !slirp_vc || qemu_can_send_packet(slirp_vc);
3750 }
3751
3752 void slirp_output(const uint8_t *pkt, int pkt_len)
3753 {
3754 #if 0
3755     printf("slirp output:\n");
3756     hex_dump(stdout, pkt, pkt_len);
3757 #endif
3758     if (!slirp_vc)
3759         return;
3760     qemu_send_packet(slirp_vc, pkt, pkt_len);
3761 }
3762
3763 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
3764 {
3765 #if 0
3766     printf("slirp input:\n");
3767     hex_dump(stdout, buf, size);
3768 #endif
3769     slirp_input(buf, size);
3770 }
3771
3772 static int net_slirp_init(VLANState *vlan)
3773 {
3774     if (!slirp_inited) {
3775         slirp_inited = 1;
3776         slirp_init();
3777     }
3778     slirp_vc = qemu_new_vlan_client(vlan,
3779                                     slirp_receive, NULL, NULL);
3780     snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector");
3781     return 0;
3782 }
3783
3784 static void net_slirp_redir(const char *redir_str)
3785 {
3786     int is_udp;
3787     char buf[256], *r;
3788     const char *p;
3789     struct in_addr guest_addr;
3790     int host_port, guest_port;
3791
3792     if (!slirp_inited) {
3793         slirp_inited = 1;
3794         slirp_init();
3795     }
3796
3797     p = redir_str;
3798     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
3799         goto fail;
3800     if (!strcmp(buf, "tcp")) {
3801         is_udp = 0;
3802     } else if (!strcmp(buf, "udp")) {
3803         is_udp = 1;
3804     } else {
3805         goto fail;
3806     }
3807
3808     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
3809         goto fail;
3810     host_port = strtol(buf, &r, 0);
3811     if (r == buf)
3812         goto fail;
3813
3814     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
3815         goto fail;
3816     if (buf[0] == '\0') {
3817         pstrcpy(buf, sizeof(buf), "10.0.2.15");
3818     }
3819     if (!inet_aton(buf, &guest_addr))
3820         goto fail;
3821
3822     guest_port = strtol(p, &r, 0);
3823     if (r == p)
3824         goto fail;
3825
3826     if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
3827         fprintf(stderr, "qemu: could not set up redirection\n");
3828         exit(1);
3829     }
3830     return;
3831  fail:
3832     fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
3833     exit(1);
3834 }
3835
3836 #ifndef _WIN32
3837
3838 char smb_dir[1024];
3839
3840 static void erase_dir(char *dir_name)
3841 {
3842     DIR *d;
3843     struct dirent *de;
3844     char filename[1024];
3845
3846     /* erase all the files in the directory */
3847     if ((d = opendir(dir_name)) != 0) {
3848         for(;;) {
3849             de = readdir(d);
3850             if (!de)
3851                 break;
3852             if (strcmp(de->d_name, ".") != 0 &&
3853                 strcmp(de->d_name, "..") != 0) {
3854                 snprintf(filename, sizeof(filename), "%s/%s",
3855                          smb_dir, de->d_name);
3856                 if (unlink(filename) != 0)  /* is it a directory? */
3857                     erase_dir(filename);
3858             }
3859         }
3860         closedir(d);
3861         rmdir(dir_name);
3862     }
3863 }
3864
3865 /* automatic user mode samba server configuration */
3866 static void smb_exit(void)
3867 {
3868     erase_dir(smb_dir);
3869 }
3870
3871 /* automatic user mode samba server configuration */
3872 static void net_slirp_smb(const char *exported_dir)
3873 {
3874     char smb_conf[1024];
3875     char smb_cmdline[1024];
3876     FILE *f;
3877
3878     if (!slirp_inited) {
3879         slirp_inited = 1;
3880         slirp_init();
3881     }
3882
3883     /* XXX: better tmp dir construction */
3884     snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
3885     if (mkdir(smb_dir, 0700) < 0) {
3886         fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
3887         exit(1);
3888     }
3889     snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
3890
3891     f = fopen(smb_conf, "w");
3892     if (!f) {
3893         fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
3894         exit(1);
3895     }
3896     fprintf(f,
3897             "[global]\n"
3898             "private dir=%s\n"
3899             "smb ports=0\n"
3900             "socket address=127.0.0.1\n"
3901             "pid directory=%s\n"
3902             "lock directory=%s\n"
3903             "log file=%s/log.smbd\n"
3904             "smb passwd file=%s/smbpasswd\n"
3905             "security = share\n"
3906             "[qemu]\n"
3907             "path=%s\n"
3908             "read only=no\n"
3909             "guest ok=yes\n",
3910             smb_dir,
3911             smb_dir,
3912             smb_dir,
3913             smb_dir,
3914             smb_dir,
3915             exported_dir
3916             );
3917     fclose(f);
3918     atexit(smb_exit);
3919
3920     snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
3921              SMBD_COMMAND, smb_conf);
3922
3923     slirp_add_exec(0, smb_cmdline, 4, 139);
3924 }
3925
3926 #endif /* !defined(_WIN32) */
3927 void do_info_slirp(void)
3928 {
3929     slirp_stats();
3930 }
3931
3932 #endif /* CONFIG_SLIRP */
3933
3934 #if !defined(_WIN32)
3935
3936 typedef struct TAPState {
3937     VLANClientState *vc;
3938     int fd;
3939     char down_script[1024];
3940 } TAPState;
3941
3942 static void tap_receive(void *opaque, const uint8_t *buf, int size)
3943 {
3944     TAPState *s = opaque;
3945     int ret;
3946     for(;;) {
3947         ret = write(s->fd, buf, size);
3948         if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
3949         } else {
3950             break;
3951         }
3952     }
3953 }
3954
3955 static void tap_send(void *opaque)
3956 {
3957     TAPState *s = opaque;
3958     uint8_t buf[4096];
3959     int size;
3960
3961 #ifdef __sun__
3962     struct strbuf sbuf;
3963     int f = 0;
3964     sbuf.maxlen = sizeof(buf);
3965     sbuf.buf = buf;
3966     size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
3967 #else
3968     size = read(s->fd, buf, sizeof(buf));
3969 #endif
3970     if (size > 0) {
3971         qemu_send_packet(s->vc, buf, size);
3972     }
3973 }
3974
3975 /* fd support */
3976
3977 static TAPState *net_tap_fd_init(VLANState *vlan, int fd)
3978 {
3979     TAPState *s;
3980
3981     s = qemu_mallocz(sizeof(TAPState));
3982     if (!s)
3983         return NULL;
3984     s->fd = fd;
3985     s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
3986     qemu_set_fd_handler(s->fd, tap_send, NULL, s);
3987     snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd);
3988     return s;
3989 }
3990
3991 #if defined (_BSD) || defined (__FreeBSD_kernel__)
3992 static int tap_open(char *ifname, int ifname_size)
3993 {
3994     int fd;
3995     char *dev;
3996     struct stat s;
3997
3998     TFR(fd = open("/dev/tap", O_RDWR));
3999     if (fd < 0) {
4000         fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
4001         return -1;
4002     }
4003
4004     fstat(fd, &s);
4005     dev = devname(s.st_rdev, S_IFCHR);
4006     pstrcpy(ifname, ifname_size, dev);
4007
4008     fcntl(fd, F_SETFL, O_NONBLOCK);
4009     return fd;
4010 }
4011 #elif defined(__sun__)
4012 #define TUNNEWPPA       (('T'<<16) | 0x0001)
4013 /*
4014  * Allocate TAP device, returns opened fd.
4015  * Stores dev name in the first arg(must be large enough).
4016  */
4017 int tap_alloc(char *dev)
4018 {
4019     int tap_fd, if_fd, ppa = -1;
4020     static int ip_fd = 0;
4021     char *ptr;
4022
4023     static int arp_fd = 0;
4024     int ip_muxid, arp_muxid;
4025     struct strioctl  strioc_if, strioc_ppa;
4026     int link_type = I_PLINK;;
4027     struct lifreq ifr;
4028     char actual_name[32] = "";
4029
4030     memset(&ifr, 0x0, sizeof(ifr));
4031
4032     if( *dev ){
4033        ptr = dev;
4034        while( *ptr && !isdigit((int)*ptr) ) ptr++;
4035        ppa = atoi(ptr);
4036     }
4037
4038     /* Check if IP device was opened */
4039     if( ip_fd )
4040        close(ip_fd);
4041
4042     TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
4043     if (ip_fd < 0) {
4044        syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
4045        return -1;
4046     }
4047
4048     TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
4049     if (tap_fd < 0) {
4050        syslog(LOG_ERR, "Can't open /dev/tap");
4051        return -1;
4052     }
4053
4054     /* Assign a new PPA and get its unit number. */
4055     strioc_ppa.ic_cmd = TUNNEWPPA;
4056     strioc_ppa.ic_timout = 0;
4057     strioc_ppa.ic_len = sizeof(ppa);
4058     strioc_ppa.ic_dp = (char *)&ppa;
4059     if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
4060        syslog (LOG_ERR, "Can't assign new interface");
4061
4062     TFR(if_fd = open("/dev/tap", O_RDWR, 0));
4063     if (if_fd < 0) {
4064        syslog(LOG_ERR, "Can't open /dev/tap (2)");
4065        return -1;
4066     }
4067     if(ioctl(if_fd, I_PUSH, "ip") < 0){
4068        syslog(LOG_ERR, "Can't push IP module");
4069        return -1;
4070     }
4071
4072     if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
4073         syslog(LOG_ERR, "Can't get flags\n");
4074
4075     snprintf (actual_name, 32, "tap%d", ppa);
4076     strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
4077
4078     ifr.lifr_ppa = ppa;
4079     /* Assign ppa according to the unit number returned by tun device */
4080
4081     if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
4082         syslog (LOG_ERR, "Can't set PPA %d", ppa);
4083     if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
4084         syslog (LOG_ERR, "Can't get flags\n");
4085     /* Push arp module to if_fd */
4086     if (ioctl (if_fd, I_PUSH, "arp") < 0)
4087         syslog (LOG_ERR, "Can't push ARP module (2)");
4088
4089     /* Push arp module to ip_fd */
4090     if (ioctl (ip_fd, I_POP, NULL) < 0)
4091         syslog (LOG_ERR, "I_POP failed\n");
4092     if (ioctl (ip_fd, I_PUSH, "arp") < 0)
4093         syslog (LOG_ERR, "Can't push ARP module (3)\n");
4094     /* Open arp_fd */
4095     TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
4096     if (arp_fd < 0)
4097        syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
4098
4099     /* Set ifname to arp */
4100     strioc_if.ic_cmd = SIOCSLIFNAME;
4101     strioc_if.ic_timout = 0;
4102     strioc_if.ic_len = sizeof(ifr);
4103     strioc_if.ic_dp = (char *)&ifr;
4104     if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
4105         syslog (LOG_ERR, "Can't set ifname to arp\n");
4106     }
4107
4108     if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
4109        syslog(LOG_ERR, "Can't link TAP device to IP");
4110        return -1;
4111     }
4112
4113     if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
4114         syslog (LOG_ERR, "Can't link TAP device to ARP");
4115
4116     close (if_fd);
4117
4118     memset(&ifr, 0x0, sizeof(ifr));
4119     strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
4120     ifr.lifr_ip_muxid  = ip_muxid;
4121     ifr.lifr_arp_muxid = arp_muxid;
4122
4123     if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
4124     {
4125       ioctl (ip_fd, I_PUNLINK , arp_muxid);
4126       ioctl (ip_fd, I_PUNLINK, ip_muxid);
4127       syslog (LOG_ERR, "Can't set multiplexor id");
4128     }
4129
4130     sprintf(dev, "tap%d", ppa);
4131     return tap_fd;
4132 }
4133
4134 static int tap_open(char *ifname, int ifname_size)
4135 {
4136     char  dev[10]="";
4137     int fd;
4138     if( (fd = tap_alloc(dev)) < 0 ){
4139        fprintf(stderr, "Cannot allocate TAP device\n");
4140        return -1;
4141     }
4142     pstrcpy(ifname, ifname_size, dev);
4143     fcntl(fd, F_SETFL, O_NONBLOCK);
4144     return fd;
4145 }
4146 #else
4147 static int tap_open(char *ifname, int ifname_size)
4148 {
4149     struct ifreq ifr;
4150     int fd, ret;
4151
4152     TFR(fd = open("/dev/net/tun", O_RDWR));
4153     if (fd < 0) {
4154         fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
4155         return -1;
4156     }
4157     memset(&ifr, 0, sizeof(ifr));
4158     ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
4159     if (ifname[0] != '\0')
4160         pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
4161     else
4162         pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
4163     ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
4164     if (ret != 0) {
4165         fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
4166         close(fd);
4167         return -1;
4168     }
4169     pstrcpy(ifname, ifname_size, ifr.ifr_name);
4170     fcntl(fd, F_SETFL, O_NONBLOCK);
4171     return fd;
4172 }
4173 #endif
4174
4175 static int launch_script(const char *setup_script, const char *ifname, int fd)
4176 {
4177     int pid, status;
4178     char *args[3];
4179     char **parg;
4180
4181         /* try to launch network script */
4182         pid = fork();
4183         if (pid >= 0) {
4184             if (pid == 0) {
4185                 int open_max = sysconf (_SC_OPEN_MAX), i;
4186                 for (i = 0; i < open_max; i++)
4187                     if (i != STDIN_FILENO &&
4188                         i != STDOUT_FILENO &&
4189                         i != STDERR_FILENO &&
4190                         i != fd)
4191                         close(i);
4192
4193                 parg = args;
4194                 *parg++ = (char *)setup_script;
4195                 *parg++ = (char *)ifname;
4196                 *parg++ = NULL;
4197                 execv(setup_script, args);
4198                 _exit(1);
4199             }
4200             while (waitpid(pid, &status, 0) != pid);
4201             if (!WIFEXITED(status) ||
4202                 WEXITSTATUS(status) != 0) {
4203                 fprintf(stderr, "%s: could not launch network script\n",
4204                         setup_script);
4205                 return -1;
4206             }
4207         }
4208     return 0;
4209 }
4210
4211 static int net_tap_init(VLANState *vlan, const char *ifname1,
4212                         const char *setup_script, const char *down_script)
4213 {
4214     TAPState *s;
4215     int fd;
4216     char ifname[128];
4217
4218     if (ifname1 != NULL)
4219         pstrcpy(ifname, sizeof(ifname), ifname1);
4220     else
4221         ifname[0] = '\0';
4222     TFR(fd = tap_open(ifname, sizeof(ifname)));
4223     if (fd < 0)
4224         return -1;
4225
4226     if (!setup_script || !strcmp(setup_script, "no"))
4227         setup_script = "";
4228     if (setup_script[0] != '\0') {
4229         if (launch_script(setup_script, ifname, fd))
4230             return -1;
4231     }
4232     s = net_tap_fd_init(vlan, fd);
4233     if (!s)
4234         return -1;
4235     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4236              "tap: ifname=%s setup_script=%s", ifname, setup_script);
4237     if (down_script && strcmp(down_script, "no"))
4238         snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
4239     return 0;
4240 }
4241
4242 #endif /* !_WIN32 */
4243
4244 /* network connection */
4245 typedef struct NetSocketState {
4246     VLANClientState *vc;
4247     int fd;
4248     int state; /* 0 = getting length, 1 = getting data */
4249     int index;
4250     int packet_len;
4251     uint8_t buf[4096];
4252     struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
4253 } NetSocketState;
4254
4255 typedef struct NetSocketListenState {
4256     VLANState *vlan;
4257     int fd;
4258 } NetSocketListenState;
4259
4260 /* XXX: we consider we can send the whole packet without blocking */
4261 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
4262 {
4263     NetSocketState *s = opaque;
4264     uint32_t len;
4265     len = htonl(size);
4266
4267     send_all(s->fd, (const uint8_t *)&len, sizeof(len));
4268     send_all(s->fd, buf, size);
4269 }
4270
4271 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
4272 {
4273     NetSocketState *s = opaque;
4274     sendto(s->fd, buf, size, 0,
4275            (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
4276 }
4277
4278 static void net_socket_send(void *opaque)
4279 {
4280     NetSocketState *s = opaque;
4281     int l, size, err;
4282     uint8_t buf1[4096];
4283     const uint8_t *buf;
4284
4285     size = recv(s->fd, buf1, sizeof(buf1), 0);
4286     if (size < 0) {
4287         err = socket_error();
4288         if (err != EWOULDBLOCK)
4289             goto eoc;
4290     } else if (size == 0) {
4291         /* end of connection */
4292     eoc:
4293         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
4294         closesocket(s->fd);
4295         return;
4296     }
4297     buf = buf1;
4298     while (size > 0) {
4299         /* reassemble a packet from the network */
4300         switch(s->state) {
4301         case 0:
4302             l = 4 - s->index;
4303             if (l > size)
4304                 l = size;
4305             memcpy(s->buf + s->index, buf, l);
4306             buf += l;
4307             size -= l;
4308             s->index += l;
4309             if (s->index == 4) {
4310                 /* got length */
4311                 s->packet_len = ntohl(*(uint32_t *)s->buf);
4312                 s->index = 0;
4313                 s->state = 1;
4314             }
4315             break;
4316         case 1:
4317             l = s->packet_len - s->index;
4318             if (l > size)
4319                 l = size;
4320             memcpy(s->buf + s->index, buf, l);
4321             s->index += l;
4322             buf += l;
4323             size -= l;
4324             if (s->index >= s->packet_len) {
4325                 qemu_send_packet(s->vc, s->buf, s->packet_len);
4326                 s->index = 0;
4327                 s->state = 0;
4328             }
4329             break;
4330         }
4331     }
4332 }
4333
4334 static void net_socket_send_dgram(void *opaque)
4335 {
4336     NetSocketState *s = opaque;
4337     int size;
4338
4339     size = recv(s->fd, s->buf, sizeof(s->buf), 0);
4340     if (size < 0)
4341         return;
4342     if (size == 0) {
4343         /* end of connection */
4344         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
4345         return;
4346     }
4347     qemu_send_packet(s->vc, s->buf, size);
4348 }
4349
4350 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
4351 {
4352     struct ip_mreq imr;
4353     int fd;
4354     int val, ret;
4355     if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
4356         fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
4357                 inet_ntoa(mcastaddr->sin_addr),
4358                 (int)ntohl(mcastaddr->sin_addr.s_addr));
4359         return -1;
4360
4361     }
4362     fd = socket(PF_INET, SOCK_DGRAM, 0);
4363     if (fd < 0) {
4364         perror("socket(PF_INET, SOCK_DGRAM)");
4365         return -1;
4366     }
4367
4368     val = 1;
4369     ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
4370                    (const char *)&val, sizeof(val));
4371     if (ret < 0) {
4372         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
4373         goto fail;
4374     }
4375
4376     ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
4377     if (ret < 0) {
4378         perror("bind");
4379         goto fail;
4380     }
4381
4382     /* Add host to multicast group */
4383     imr.imr_multiaddr = mcastaddr->sin_addr;
4384     imr.imr_interface.s_addr = htonl(INADDR_ANY);
4385
4386     ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
4387                      (const char *)&imr, sizeof(struct ip_mreq));
4388     if (ret < 0) {
4389         perror("setsockopt(IP_ADD_MEMBERSHIP)");
4390         goto fail;
4391     }
4392
4393     /* Force mcast msgs to loopback (eg. several QEMUs in same host */
4394     val = 1;
4395     ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
4396                    (const char *)&val, sizeof(val));
4397     if (ret < 0) {
4398         perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
4399         goto fail;
4400     }
4401
4402     socket_set_nonblock(fd);
4403     return fd;
4404 fail:
4405     if (fd >= 0)
4406         closesocket(fd);
4407     return -1;
4408 }
4409
4410 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd,
4411                                           int is_connected)
4412 {
4413     struct sockaddr_in saddr;
4414     int newfd;
4415     socklen_t saddr_len;
4416     NetSocketState *s;
4417
4418     /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
4419      * Because this may be "shared" socket from a "master" process, datagrams would be recv()
4420      * by ONLY ONE process: we must "clone" this dgram socket --jjo
4421      */
4422
4423     if (is_connected) {
4424         if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
4425             /* must be bound */
4426             if (saddr.sin_addr.s_addr==0) {
4427                 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
4428                         fd);
4429                 return NULL;
4430             }
4431             /* clone dgram socket */
4432             newfd = net_socket_mcast_create(&saddr);
4433             if (newfd < 0) {
4434                 /* error already reported by net_socket_mcast_create() */
4435                 close(fd);
4436                 return NULL;
4437             }
4438             /* clone newfd to fd, close newfd */
4439             dup2(newfd, fd);
4440             close(newfd);
4441
4442         } else {
4443             fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
4444                     fd, strerror(errno));
4445             return NULL;
4446         }
4447     }
4448
4449     s = qemu_mallocz(sizeof(NetSocketState));
4450     if (!s)
4451         return NULL;
4452     s->fd = fd;
4453
4454     s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s);
4455     qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
4456
4457     /* mcast: save bound address as dst */
4458     if (is_connected) s->dgram_dst=saddr;
4459
4460     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4461             "socket: fd=%d (%s mcast=%s:%d)",
4462             fd, is_connected? "cloned" : "",
4463             inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4464     return s;
4465 }
4466
4467 static void net_socket_connect(void *opaque)
4468 {
4469     NetSocketState *s = opaque;
4470     qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
4471 }
4472
4473 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd,
4474                                           int is_connected)
4475 {
4476     NetSocketState *s;
4477     s = qemu_mallocz(sizeof(NetSocketState));
4478     if (!s)
4479         return NULL;
4480     s->fd = fd;
4481     s->vc = qemu_new_vlan_client(vlan,
4482                                  net_socket_receive, NULL, s);
4483     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4484              "socket: fd=%d", fd);
4485     if (is_connected) {
4486         net_socket_connect(s);
4487     } else {
4488         qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
4489     }
4490     return s;
4491 }
4492
4493 static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd,
4494                                           int is_connected)
4495 {
4496     int so_type=-1, optlen=sizeof(so_type);
4497
4498     if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
4499         (socklen_t *)&optlen)< 0) {
4500         fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
4501         return NULL;
4502     }
4503     switch(so_type) {
4504     case SOCK_DGRAM:
4505         return net_socket_fd_init_dgram(vlan, fd, is_connected);
4506     case SOCK_STREAM:
4507         return net_socket_fd_init_stream(vlan, fd, is_connected);
4508     default:
4509         /* who knows ... this could be a eg. a pty, do warn and continue as stream */
4510         fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
4511         return net_socket_fd_init_stream(vlan, fd, is_connected);
4512     }
4513     return NULL;
4514 }
4515
4516 static void net_socket_accept(void *opaque)
4517 {
4518     NetSocketListenState *s = opaque;
4519     NetSocketState *s1;
4520     struct sockaddr_in saddr;
4521     socklen_t len;
4522     int fd;
4523
4524     for(;;) {
4525         len = sizeof(saddr);
4526         fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
4527         if (fd < 0 && errno != EINTR) {
4528             return;
4529         } else if (fd >= 0) {
4530             break;
4531         }
4532     }
4533     s1 = net_socket_fd_init(s->vlan, fd, 1);
4534     if (!s1) {
4535         closesocket(fd);
4536     } else {
4537         snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
4538                  "socket: connection from %s:%d",
4539                  inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4540     }
4541 }
4542
4543 static int net_socket_listen_init(VLANState *vlan, const char *host_str)
4544 {
4545     NetSocketListenState *s;
4546     int fd, val, ret;
4547     struct sockaddr_in saddr;
4548
4549     if (parse_host_port(&saddr, host_str) < 0)
4550         return -1;
4551
4552     s = qemu_mallocz(sizeof(NetSocketListenState));
4553     if (!s)
4554         return -1;
4555
4556     fd = socket(PF_INET, SOCK_STREAM, 0);
4557     if (fd < 0) {
4558         perror("socket");
4559         return -1;
4560     }
4561     socket_set_nonblock(fd);
4562
4563     /* allow fast reuse */
4564     val = 1;
4565     setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
4566
4567     ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
4568     if (ret < 0) {
4569         perror("bind");
4570         return -1;
4571     }
4572     ret = listen(fd, 0);
4573     if (ret < 0) {
4574         perror("listen");
4575         return -1;
4576     }
4577     s->vlan = vlan;
4578     s->fd = fd;
4579     qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
4580     return 0;
4581 }
4582
4583 static int net_socket_connect_init(VLANState *vlan, const char *host_str)
4584 {
4585     NetSocketState *s;
4586     int fd, connected, ret, err;
4587     struct sockaddr_in saddr;
4588
4589     if (parse_host_port(&saddr, host_str) < 0)
4590         return -1;
4591
4592     fd = socket(PF_INET, SOCK_STREAM, 0);
4593     if (fd < 0) {
4594         perror("socket");
4595         return -1;
4596     }
4597     socket_set_nonblock(fd);
4598
4599     connected = 0;
4600     for(;;) {
4601         ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
4602         if (ret < 0) {
4603             err = socket_error();
4604             if (err == EINTR || err == EWOULDBLOCK) {
4605             } else if (err == EINPROGRESS) {
4606                 break;
4607 #ifdef _WIN32
4608             } else if (err == WSAEALREADY) {
4609                 break;
4610 #endif
4611             } else {
4612                 perror("connect");
4613                 closesocket(fd);
4614                 return -1;
4615             }
4616         } else {
4617             connected = 1;
4618             break;
4619         }
4620     }
4621     s = net_socket_fd_init(vlan, fd, connected);
4622     if (!s)
4623         return -1;
4624     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4625              "socket: connect to %s:%d",
4626              inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4627     return 0;
4628 }
4629
4630 static int net_socket_mcast_init(VLANState *vlan, const char *host_str)
4631 {
4632     NetSocketState *s;
4633     int fd;
4634     struct sockaddr_in saddr;
4635
4636     if (parse_host_port(&saddr, host_str) < 0)
4637         return -1;
4638
4639
4640     fd = net_socket_mcast_create(&saddr);
4641     if (fd < 0)
4642         return -1;
4643
4644     s = net_socket_fd_init(vlan, fd, 0);
4645     if (!s)
4646         return -1;
4647
4648     s->dgram_dst = saddr;
4649
4650     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4651              "socket: mcast=%s:%d",
4652              inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4653     return 0;
4654
4655 }
4656
4657 static const char *get_opt_name(char *buf, int buf_size, const char *p)
4658 {
4659     char *q;
4660
4661     q = buf;
4662     while (*p != '\0' && *p != '=') {
4663         if (q && (q - buf) < buf_size - 1)
4664             *q++ = *p;
4665         p++;
4666     }
4667     if (q)
4668         *q = '\0';
4669
4670     return p;
4671 }
4672
4673 static const char *get_opt_value(char *buf, int buf_size, const char *p)
4674 {
4675     char *q;
4676
4677     q = buf;
4678     while (*p != '\0') {
4679         if (*p == ',') {
4680             if (*(p + 1) != ',')
4681                 break;
4682             p++;
4683         }
4684         if (q && (q - buf) < buf_size - 1)
4685             *q++ = *p;
4686         p++;
4687     }
4688     if (q)
4689         *q = '\0';
4690
4691     return p;
4692 }
4693
4694 static int get_param_value(char *buf, int buf_size,
4695                            const char *tag, const char *str)
4696 {
4697     const char *p;
4698     char option[128];
4699
4700     p = str;
4701     for(;;) {
4702         p = get_opt_name(option, sizeof(option), p);
4703         if (*p != '=')
4704             break;
4705         p++;
4706         if (!strcmp(tag, option)) {
4707             (void)get_opt_value(buf, buf_size, p);
4708             return strlen(buf);
4709         } else {
4710             p = get_opt_value(NULL, 0, p);
4711         }
4712         if (*p != ',')
4713             break;
4714         p++;
4715     }
4716     return 0;
4717 }
4718
4719 static int check_params(char *buf, int buf_size,
4720                         char **params, const char *str)
4721 {
4722     const char *p;
4723     int i;
4724
4725     p = str;
4726     for(;;) {
4727         p = get_opt_name(buf, buf_size, p);
4728         if (*p != '=')
4729             return -1;
4730         p++;
4731         for(i = 0; params[i] != NULL; i++)
4732             if (!strcmp(params[i], buf))
4733                 break;
4734         if (params[i] == NULL)
4735             return -1;
4736         p = get_opt_value(NULL, 0, p);
4737         if (*p != ',')
4738             break;
4739         p++;
4740     }
4741     return 0;
4742 }
4743
4744
4745 static int net_client_init(const char *str)
4746 {
4747     const char *p;
4748     char *q;
4749     char device[64];
4750     char buf[1024];
4751     int vlan_id, ret;
4752     VLANState *vlan;
4753
4754     p = str;
4755     q = device;
4756     while (*p != '\0' && *p != ',') {
4757         if ((q - device) < sizeof(device) - 1)
4758             *q++ = *p;
4759         p++;
4760     }
4761     *q = '\0';
4762     if (*p == ',')
4763         p++;
4764     vlan_id = 0;
4765     if (get_param_value(buf, sizeof(buf), "vlan", p)) {
4766         vlan_id = strtol(buf, NULL, 0);
4767     }
4768     vlan = qemu_find_vlan(vlan_id);
4769     if (!vlan) {
4770         fprintf(stderr, "Could not create vlan %d\n", vlan_id);
4771         return -1;
4772     }
4773     if (!strcmp(device, "nic")) {
4774         NICInfo *nd;
4775         uint8_t *macaddr;
4776
4777         if (nb_nics >= MAX_NICS) {
4778             fprintf(stderr, "Too Many NICs\n");
4779             return -1;
4780         }
4781         nd = &nd_table[nb_nics];
4782         macaddr = nd->macaddr;
4783         macaddr[0] = 0x52;
4784         macaddr[1] = 0x54;
4785         macaddr[2] = 0x00;
4786         macaddr[3] = 0x12;
4787         macaddr[4] = 0x34;
4788         macaddr[5] = 0x56 + nb_nics;
4789
4790         if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
4791             if (parse_macaddr(macaddr, buf) < 0) {
4792                 fprintf(stderr, "invalid syntax for ethernet address\n");
4793                 return -1;
4794             }
4795         }
4796         if (get_param_value(buf, sizeof(buf), "model", p)) {
4797             nd->model = strdup(buf);
4798         }
4799         nd->vlan = vlan;
4800         nb_nics++;
4801         vlan->nb_guest_devs++;
4802         ret = 0;
4803     } else
4804     if (!strcmp(device, "none")) {
4805         /* does nothing. It is needed to signal that no network cards
4806            are wanted */
4807         ret = 0;
4808     } else
4809 #ifdef CONFIG_SLIRP
4810     if (!strcmp(device, "user")) {
4811         if (get_param_value(buf, sizeof(buf), "hostname", p)) {
4812             pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
4813         }
4814         vlan->nb_host_devs++;
4815         ret = net_slirp_init(vlan);
4816     } else
4817 #endif
4818 #ifdef _WIN32
4819     if (!strcmp(device, "tap")) {
4820         char ifname[64];
4821         if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
4822             fprintf(stderr, "tap: no interface name\n");
4823             return -1;
4824         }
4825         vlan->nb_host_devs++;
4826         ret = tap_win32_init(vlan, ifname);
4827     } else
4828 #else
4829     if (!strcmp(device, "tap")) {
4830         char ifname[64];
4831         char setup_script[1024], down_script[1024];
4832         int fd;
4833         vlan->nb_host_devs++;
4834         if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
4835             fd = strtol(buf, NULL, 0);
4836             fcntl(fd, F_SETFL, O_NONBLOCK);
4837             ret = -1;
4838             if (net_tap_fd_init(vlan, fd))
4839                 ret = 0;
4840         } else {
4841             if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
4842                 ifname[0] = '\0';
4843             }
4844             if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
4845                 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
4846             }
4847             if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
4848                 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
4849             }
4850             ret = net_tap_init(vlan, ifname, setup_script, down_script);
4851         }
4852     } else
4853 #endif
4854     if (!strcmp(device, "socket")) {
4855         if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
4856             int fd;
4857             fd = strtol(buf, NULL, 0);
4858             ret = -1;
4859             if (net_socket_fd_init(vlan, fd, 1))
4860                 ret = 0;
4861         } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
4862             ret = net_socket_listen_init(vlan, buf);
4863         } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
4864             ret = net_socket_connect_init(vlan, buf);
4865         } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
4866             ret = net_socket_mcast_init(vlan, buf);
4867         } else {
4868             fprintf(stderr, "Unknown socket options: %s\n", p);
4869             return -1;
4870         }
4871         vlan->nb_host_devs++;
4872     } else
4873     {
4874         fprintf(stderr, "Unknown network device: %s\n", device);
4875         return -1;
4876     }
4877     if (ret < 0) {
4878         fprintf(stderr, "Could not initialize device '%s'\n", device);
4879     }
4880
4881     return ret;
4882 }
4883
4884 void do_info_network(void)
4885 {
4886     VLANState *vlan;
4887     VLANClientState *vc;
4888
4889     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
4890         term_printf("VLAN %d devices:\n", vlan->id);
4891         for(vc = vlan->first_client; vc != NULL; vc = vc->next)
4892             term_printf("  %s\n", vc->info_str);
4893     }
4894 }
4895
4896 #define HD_ALIAS "index=%d,media=disk"
4897 #ifdef TARGET_PPC
4898 #define CDROM_ALIAS "index=1,media=cdrom"
4899 #else
4900 #define CDROM_ALIAS "index=2,media=cdrom"
4901 #endif
4902 #define FD_ALIAS "index=%d,if=floppy"
4903 #define PFLASH_ALIAS "if=pflash"
4904 #define MTD_ALIAS "if=mtd"
4905 #define SD_ALIAS "index=0,if=sd"
4906
4907 static int drive_add(const char *file, const char *fmt, ...)
4908 {
4909     va_list ap;
4910
4911     if (nb_drives_opt >= MAX_DRIVES) {
4912         fprintf(stderr, "qemu: too many drives\n");
4913         exit(1);
4914     }
4915
4916     drives_opt[nb_drives_opt].file = file;
4917     va_start(ap, fmt);
4918     vsnprintf(drives_opt[nb_drives_opt].opt,
4919               sizeof(drives_opt[0].opt), fmt, ap);
4920     va_end(ap);
4921
4922     return nb_drives_opt++;
4923 }
4924
4925 int drive_get_index(BlockInterfaceType type, int bus, int unit)
4926 {
4927     int index;
4928
4929     /* seek interface, bus and unit */
4930
4931     for (index = 0; index < nb_drives; index++)
4932         if (drives_table[index].type == type &&
4933             drives_table[index].bus == bus &&
4934             drives_table[index].unit == unit)
4935         return index;
4936
4937     return -1;
4938 }
4939
4940 int drive_get_max_bus(BlockInterfaceType type)
4941 {
4942     int max_bus;
4943     int index;
4944
4945     max_bus = -1;
4946     for (index = 0; index < nb_drives; index++) {
4947         if(drives_table[index].type == type &&
4948            drives_table[index].bus > max_bus)
4949             max_bus = drives_table[index].bus;
4950     }
4951     return max_bus;
4952 }
4953
4954 static int drive_init(struct drive_opt *arg, int snapshot,
4955                       QEMUMachine *machine)
4956 {
4957     char buf[128];
4958     char file[1024];
4959     char devname[128];
4960     const char *mediastr = "";
4961     BlockInterfaceType type;
4962     enum { MEDIA_DISK, MEDIA_CDROM } media;
4963     int bus_id, unit_id;
4964     int cyls, heads, secs, translation;
4965     BlockDriverState *bdrv;
4966     int max_devs;
4967     int index;
4968     int cache;
4969     int bdrv_flags;
4970     char *str = arg->opt;
4971     char *params[] = { "bus", "unit", "if", "index", "cyls", "heads",
4972                        "secs", "trans", "media", "snapshot", "file",
4973                        "cache", NULL };
4974
4975     if (check_params(buf, sizeof(buf), params, str) < 0) {
4976          fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n",
4977                          buf, str);
4978          return -1;
4979     }
4980
4981     file[0] = 0;
4982     cyls = heads = secs = 0;
4983     bus_id = 0;
4984     unit_id = -1;
4985     translation = BIOS_ATA_TRANSLATION_AUTO;
4986     index = -1;
4987     cache = 1;
4988
4989     if (!strcmp(machine->name, "realview") ||
4990         !strcmp(machine->name, "SS-5") ||
4991         !strcmp(machine->name, "SS-10") ||
4992         !strcmp(machine->name, "SS-600MP") ||
4993         !strcmp(machine->name, "versatilepb") ||
4994         !strcmp(machine->name, "versatileab")) {
4995         type = IF_SCSI;
4996         max_devs = MAX_SCSI_DEVS;
4997         strcpy(devname, "scsi");
4998     } else {
4999         type = IF_IDE;
5000         max_devs = MAX_IDE_DEVS;
5001         strcpy(devname, "ide");
5002     }
5003     media = MEDIA_DISK;
5004
5005     /* extract parameters */
5006
5007     if (get_param_value(buf, sizeof(buf), "bus", str)) {
5008         bus_id = strtol(buf, NULL, 0);
5009         if (bus_id < 0) {
5010             fprintf(stderr, "qemu: '%s' invalid bus id\n", str);
5011             return -1;
5012         }
5013     }
5014
5015     if (get_param_value(buf, sizeof(buf), "unit", str)) {
5016         unit_id = strtol(buf, NULL, 0);
5017         if (unit_id < 0) {
5018             fprintf(stderr, "qemu: '%s' invalid unit id\n", str);
5019             return -1;
5020         }
5021     }
5022
5023     if (get_param_value(buf, sizeof(buf), "if", str)) {
5024         strncpy(devname, buf, sizeof(devname));
5025         if (!strcmp(buf, "ide")) {
5026             type = IF_IDE;
5027             max_devs = MAX_IDE_DEVS;
5028         } else if (!strcmp(buf, "scsi")) {
5029             type = IF_SCSI;
5030             max_devs = MAX_SCSI_DEVS;
5031         } else if (!strcmp(buf, "floppy")) {
5032             type = IF_FLOPPY;
5033             max_devs = 0;
5034         } else if (!strcmp(buf, "pflash")) {
5035             type = IF_PFLASH;
5036             max_devs = 0;
5037         } else if (!strcmp(buf, "mtd")) {
5038             type = IF_MTD;
5039             max_devs = 0;
5040         } else if (!strcmp(buf, "sd")) {
5041             type = IF_SD;
5042             max_devs = 0;
5043         } else {
5044             fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
5045             return -1;
5046         }
5047     }
5048
5049     if (get_param_value(buf, sizeof(buf), "index", str)) {
5050         index = strtol(buf, NULL, 0);
5051         if (index < 0) {
5052             fprintf(stderr, "qemu: '%s' invalid index\n", str);
5053             return -1;
5054         }
5055     }
5056
5057     if (get_param_value(buf, sizeof(buf), "cyls", str)) {
5058         cyls = strtol(buf, NULL, 0);
5059     }
5060
5061     if (get_param_value(buf, sizeof(buf), "heads", str)) {
5062         heads = strtol(buf, NULL, 0);
5063     }
5064
5065     if (get_param_value(buf, sizeof(buf), "secs", str)) {
5066         secs = strtol(buf, NULL, 0);
5067     }
5068
5069     if (cyls || heads || secs) {
5070         if (cyls < 1 || cyls > 16383) {
5071             fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str);
5072             return -1;
5073         }
5074         if (heads < 1 || heads > 16) {
5075             fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str);
5076             return -1;
5077         }
5078         if (secs < 1 || secs > 63) {
5079             fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str);
5080             return -1;
5081         }
5082     }
5083
5084     if (get_param_value(buf, sizeof(buf), "trans", str)) {
5085         if (!cyls) {
5086             fprintf(stderr,
5087                     "qemu: '%s' trans must be used with cyls,heads and secs\n",
5088                     str);
5089             return -1;
5090         }
5091         if (!strcmp(buf, "none"))
5092             translation = BIOS_ATA_TRANSLATION_NONE;
5093         else if (!strcmp(buf, "lba"))
5094             translation = BIOS_ATA_TRANSLATION_LBA;
5095         else if (!strcmp(buf, "auto"))
5096             translation = BIOS_ATA_TRANSLATION_AUTO;
5097         else {
5098             fprintf(stderr, "qemu: '%s' invalid translation type\n", str);
5099             return -1;
5100         }
5101     }
5102
5103     if (get_param_value(buf, sizeof(buf), "media", str)) {
5104         if (!strcmp(buf, "disk")) {
5105             media = MEDIA_DISK;
5106         } else if (!strcmp(buf, "cdrom")) {
5107             if (cyls || secs || heads) {
5108                 fprintf(stderr,
5109                         "qemu: '%s' invalid physical CHS format\n", str);
5110                 return -1;
5111             }
5112             media = MEDIA_CDROM;
5113         } else {
5114             fprintf(stderr, "qemu: '%s' invalid media\n", str);
5115             return -1;
5116         }
5117     }
5118
5119     if (get_param_value(buf, sizeof(buf), "snapshot", str)) {
5120         if (!strcmp(buf, "on"))
5121             snapshot = 1;
5122         else if (!strcmp(buf, "off"))
5123             snapshot = 0;
5124         else {
5125             fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str);
5126             return -1;
5127         }
5128     }
5129
5130     if (get_param_value(buf, sizeof(buf), "cache", str)) {
5131         if (!strcmp(buf, "off"))
5132             cache = 0;
5133         else if (!strcmp(buf, "on"))
5134             cache = 1;
5135         else {
5136            fprintf(stderr, "qemu: invalid cache option\n");
5137            return -1;
5138         }
5139     }
5140
5141     if (arg->file == NULL)
5142         get_param_value(file, sizeof(file), "file", str);
5143     else
5144         pstrcpy(file, sizeof(file), arg->file);
5145
5146     /* compute bus and unit according index */
5147
5148     if (index != -1) {
5149         if (bus_id != 0 || unit_id != -1) {
5150             fprintf(stderr,
5151                     "qemu: '%s' index cannot be used with bus and unit\n", str);
5152             return -1;
5153         }
5154         if (max_devs == 0)
5155         {
5156             unit_id = index;
5157             bus_id = 0;
5158         } else {
5159             unit_id = index % max_devs;
5160             bus_id = index / max_devs;
5161         }
5162     }
5163
5164     /* if user doesn't specify a unit_id,
5165      * try to find the first free
5166      */
5167
5168     if (unit_id == -1) {
5169        unit_id = 0;
5170        while (drive_get_index(type, bus_id, unit_id) != -1) {
5171            unit_id++;
5172            if (max_devs && unit_id >= max_devs) {
5173                unit_id -= max_devs;
5174                bus_id++;
5175            }
5176        }
5177     }
5178
5179     /* check unit id */
5180
5181     if (max_devs && unit_id >= max_devs) {
5182         fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n",
5183                         str, unit_id, max_devs - 1);
5184         return -1;
5185     }
5186
5187     /*
5188      * ignore multiple definitions
5189      */
5190
5191     if (drive_get_index(type, bus_id, unit_id) != -1)
5192         return 0;
5193
5194     /* init */
5195
5196     if (type == IF_IDE || type == IF_SCSI)
5197         mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
5198     if (max_devs)
5199         snprintf(buf, sizeof(buf), "%s%i%s%i",
5200                  devname, bus_id, mediastr, unit_id);
5201     else
5202         snprintf(buf, sizeof(buf), "%s%s%i",
5203                  devname, mediastr, unit_id);
5204     bdrv = bdrv_new(buf);
5205     drives_table[nb_drives].bdrv = bdrv;
5206     drives_table[nb_drives].type = type;
5207     drives_table[nb_drives].bus = bus_id;
5208     drives_table[nb_drives].unit = unit_id;
5209     nb_drives++;
5210
5211     switch(type) {
5212     case IF_IDE:
5213     case IF_SCSI:
5214         switch(media) {
5215         case MEDIA_DISK:
5216             if (cyls != 0) {
5217                 bdrv_set_geometry_hint(bdrv, cyls, heads, secs);
5218                 bdrv_set_translation_hint(bdrv, translation);
5219             }
5220             break;
5221         case MEDIA_CDROM:
5222             bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
5223             break;
5224         }
5225         break;
5226     case IF_SD:
5227         /* FIXME: This isn't really a floppy, but it's a reasonable
5228            approximation.  */
5229     case IF_FLOPPY:
5230         bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY);
5231         break;
5232     case IF_PFLASH:
5233     case IF_MTD:
5234         break;
5235     }
5236     if (!file[0])
5237         return 0;
5238     bdrv_flags = 0;
5239     if (snapshot)
5240         bdrv_flags |= BDRV_O_SNAPSHOT;
5241     if (!cache)
5242         bdrv_flags |= BDRV_O_DIRECT;
5243     if (bdrv_open(bdrv, file, bdrv_flags) < 0 || qemu_key_check(bdrv, file)) {
5244         fprintf(stderr, "qemu: could not open disk image %s\n",
5245                         file);
5246         return -1;
5247     }
5248     return 0;
5249 }
5250
5251 /***********************************************************/
5252 /* USB devices */
5253
5254 static USBPort *used_usb_ports;
5255 static USBPort *free_usb_ports;
5256
5257 /* ??? Maybe change this to register a hub to keep track of the topology.  */
5258 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
5259                             usb_attachfn attach)
5260 {
5261     port->opaque = opaque;
5262     port->index = index;
5263     port->attach = attach;
5264     port->next = free_usb_ports;
5265     free_usb_ports = port;
5266 }
5267
5268 static int usb_device_add(const char *devname)
5269 {
5270     const char *p;
5271     USBDevice *dev;
5272     USBPort *port;
5273
5274     if (!free_usb_ports)
5275         return -1;
5276
5277     if (strstart(devname, "host:", &p)) {
5278         dev = usb_host_device_open(p);
5279     } else if (!strcmp(devname, "mouse")) {
5280         dev = usb_mouse_init();
5281     } else if (!strcmp(devname, "tablet")) {
5282         dev = usb_tablet_init();
5283     } else if (!strcmp(devname, "keyboard")) {
5284         dev = usb_keyboard_init();
5285     } else if (strstart(devname, "disk:", &p)) {
5286         dev = usb_msd_init(p);
5287     } else if (!strcmp(devname, "wacom-tablet")) {
5288         dev = usb_wacom_init();
5289     } else if (strstart(devname, "serial:", &p)) {
5290         dev = usb_serial_init(p);
5291 #ifdef CONFIG_BRLAPI
5292     } else if (!strcmp(devname, "braille")) {
5293         dev = usb_baum_init();
5294 #endif
5295     } else {
5296         return -1;
5297     }
5298     if (!dev)
5299         return -1;
5300
5301     /* Find a USB port to add the device to.  */
5302     port = free_usb_ports;
5303     if (!port->next) {
5304         USBDevice *hub;
5305
5306         /* Create a new hub and chain it on.  */
5307         free_usb_ports = NULL;
5308         port->next = used_usb_ports;
5309         used_usb_ports = port;
5310
5311         hub = usb_hub_init(VM_USB_HUB_SIZE);
5312         usb_attach(port, hub);
5313         port = free_usb_ports;
5314     }
5315
5316     free_usb_ports = port->next;
5317     port->next = used_usb_ports;
5318     used_usb_ports = port;
5319     usb_attach(port, dev);
5320     return 0;
5321 }
5322
5323 static int usb_device_del(const char *devname)
5324 {
5325     USBPort *port;
5326     USBPort **lastp;
5327     USBDevice *dev;
5328     int bus_num, addr;
5329     const char *p;
5330
5331     if (!used_usb_ports)
5332         return -1;
5333
5334     p = strchr(devname, '.');
5335     if (!p)
5336         return -1;
5337     bus_num = strtoul(devname, NULL, 0);
5338     addr = strtoul(p + 1, NULL, 0);
5339     if (bus_num != 0)
5340         return -1;
5341
5342     lastp = &used_usb_ports;
5343     port = used_usb_ports;
5344     while (port && port->dev->addr != addr) {
5345         lastp = &port->next;
5346         port = port->next;
5347     }
5348
5349     if (!port)
5350         return -1;
5351
5352     dev = port->dev;
5353     *lastp = port->next;
5354     usb_attach(port, NULL);
5355     dev->handle_destroy(dev);
5356     port->next = free_usb_ports;
5357     free_usb_ports = port;
5358     return 0;
5359 }
5360
5361 void do_usb_add(const char *devname)
5362 {
5363     int ret;
5364     ret = usb_device_add(devname);
5365     if (ret < 0)
5366         term_printf("Could not add USB device '%s'\n", devname);
5367 }
5368
5369 void do_usb_del(const char *devname)
5370 {
5371     int ret;
5372     ret = usb_device_del(devname);
5373     if (ret < 0)
5374         term_printf("Could not remove USB device '%s'\n", devname);
5375 }
5376
5377 void usb_info(void)
5378 {
5379     USBDevice *dev;
5380     USBPort *port;
5381     const char *speed_str;
5382
5383     if (!usb_enabled) {
5384         term_printf("USB support not enabled\n");
5385         return;
5386     }
5387
5388     for (port = used_usb_ports; port; port = port->next) {
5389         dev = port->dev;
5390         if (!dev)
5391             continue;
5392         switch(dev->speed) {
5393         case USB_SPEED_LOW:
5394             speed_str = "1.5";
5395             break;
5396         case USB_SPEED_FULL:
5397             speed_str = "12";
5398             break;
5399         case USB_SPEED_HIGH:
5400             speed_str = "480";
5401             break;
5402         default:
5403             speed_str = "?";
5404             break;
5405         }
5406         term_printf("  Device %d.%d, Speed %s Mb/s, Product %s\n",
5407                     0, dev->addr, speed_str, dev->devname);
5408     }
5409 }
5410
5411 /***********************************************************/
5412 /* PCMCIA/Cardbus */
5413
5414 static struct pcmcia_socket_entry_s {
5415     struct pcmcia_socket_s *socket;
5416     struct pcmcia_socket_entry_s *next;
5417 } *pcmcia_sockets = 0;
5418
5419 void pcmcia_socket_register(struct pcmcia_socket_s *socket)
5420 {
5421     struct pcmcia_socket_entry_s *entry;
5422
5423     entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
5424     entry->socket = socket;
5425     entry->next = pcmcia_sockets;
5426     pcmcia_sockets = entry;
5427 }
5428
5429 void pcmcia_socket_unregister(struct pcmcia_socket_s *socket)
5430 {
5431     struct pcmcia_socket_entry_s *entry, **ptr;
5432
5433     ptr = &pcmcia_sockets;
5434     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
5435         if (entry->socket == socket) {
5436             *ptr = entry->next;
5437             qemu_free(entry);
5438         }
5439 }
5440
5441 void pcmcia_info(void)
5442 {
5443     struct pcmcia_socket_entry_s *iter;
5444     if (!pcmcia_sockets)
5445         term_printf("No PCMCIA sockets\n");
5446
5447     for (iter = pcmcia_sockets; iter; iter = iter->next)
5448         term_printf("%s: %s\n", iter->socket->slot_string,
5449                     iter->socket->attached ? iter->socket->card_string :
5450                     "Empty");
5451 }
5452
5453 /***********************************************************/
5454 /* dumb display */
5455
5456 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
5457 {
5458 }
5459
5460 static void dumb_resize(DisplayState *ds, int w, int h)
5461 {
5462 }
5463
5464 static void dumb_refresh(DisplayState *ds)
5465 {
5466 #if defined(CONFIG_SDL)
5467     vga_hw_update();
5468 #endif
5469 }
5470
5471 static void dumb_display_init(DisplayState *ds)
5472 {
5473     ds->data = NULL;
5474     ds->linesize = 0;
5475     ds->depth = 0;
5476     ds->dpy_update = dumb_update;
5477     ds->dpy_resize = dumb_resize;
5478     ds->dpy_refresh = dumb_refresh;
5479 }
5480
5481 /***********************************************************/
5482 /* I/O handling */
5483
5484 #define MAX_IO_HANDLERS 64
5485
5486 typedef struct IOHandlerRecord {
5487     int fd;
5488     IOCanRWHandler *fd_read_poll;
5489     IOHandler *fd_read;
5490     IOHandler *fd_write;
5491     int deleted;
5492     void *opaque;
5493     /* temporary data */
5494     struct pollfd *ufd;
5495     struct IOHandlerRecord *next;
5496 } IOHandlerRecord;
5497
5498 static IOHandlerRecord *first_io_handler;
5499
5500 /* XXX: fd_read_poll should be suppressed, but an API change is
5501    necessary in the character devices to suppress fd_can_read(). */
5502 int qemu_set_fd_handler2(int fd,
5503                          IOCanRWHandler *fd_read_poll,
5504                          IOHandler *fd_read,
5505                          IOHandler *fd_write,
5506                          void *opaque)
5507 {
5508     IOHandlerRecord **pioh, *ioh;
5509
5510     if (!fd_read && !fd_write) {
5511         pioh = &first_io_handler;
5512         for(;;) {
5513             ioh = *pioh;
5514             if (ioh == NULL)
5515                 break;
5516             if (ioh->fd == fd) {
5517                 ioh->deleted = 1;
5518                 break;
5519             }
5520             pioh = &ioh->next;
5521         }
5522     } else {
5523         for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
5524             if (ioh->fd == fd)
5525                 goto found;
5526         }
5527         ioh = qemu_mallocz(sizeof(IOHandlerRecord));
5528         if (!ioh)
5529             return -1;
5530         ioh->next = first_io_handler;
5531         first_io_handler = ioh;
5532     found:
5533         ioh->fd = fd;
5534         ioh->fd_read_poll = fd_read_poll;
5535         ioh->fd_read = fd_read;
5536         ioh->fd_write = fd_write;
5537         ioh->opaque = opaque;
5538         ioh->deleted = 0;
5539     }
5540     return 0;
5541 }
5542
5543 int qemu_set_fd_handler(int fd,
5544                         IOHandler *fd_read,
5545                         IOHandler *fd_write,
5546                         void *opaque)
5547 {
5548     return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
5549 }
5550
5551 /***********************************************************/
5552 /* Polling handling */
5553
5554 typedef struct PollingEntry {
5555     PollingFunc *func;
5556     void *opaque;
5557     struct PollingEntry *next;
5558 } PollingEntry;
5559
5560 static PollingEntry *first_polling_entry;
5561
5562 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
5563 {
5564     PollingEntry **ppe, *pe;
5565     pe = qemu_mallocz(sizeof(PollingEntry));
5566     if (!pe)
5567         return -1;
5568     pe->func = func;
5569     pe->opaque = opaque;
5570     for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
5571     *ppe = pe;
5572     return 0;
5573 }
5574
5575 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
5576 {
5577     PollingEntry **ppe, *pe;
5578     for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
5579         pe = *ppe;
5580         if (pe->func == func && pe->opaque == opaque) {
5581             *ppe = pe->next;
5582             qemu_free(pe);
5583             break;
5584         }
5585     }
5586 }
5587
5588 #ifdef _WIN32
5589 /***********************************************************/
5590 /* Wait objects support */
5591 typedef struct WaitObjects {
5592     int num;
5593     HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
5594     WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
5595     void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
5596 } WaitObjects;
5597
5598 static WaitObjects wait_objects = {0};
5599
5600 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
5601 {
5602     WaitObjects *w = &wait_objects;
5603
5604     if (w->num >= MAXIMUM_WAIT_OBJECTS)
5605         return -1;
5606     w->events[w->num] = handle;
5607     w->func[w->num] = func;
5608     w->opaque[w->num] = opaque;
5609     w->num++;
5610     return 0;
5611 }
5612
5613 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
5614 {
5615     int i, found;
5616     WaitObjects *w = &wait_objects;
5617
5618     found = 0;
5619     for (i = 0; i < w->num; i++) {
5620         if (w->events[i] == handle)
5621             found = 1;
5622         if (found) {
5623             w->events[i] = w->events[i + 1];
5624             w->func[i] = w->func[i + 1];
5625             w->opaque[i] = w->opaque[i + 1];
5626         }
5627     }
5628     if (found)
5629         w->num--;
5630 }
5631 #endif
5632
5633 /***********************************************************/
5634 /* savevm/loadvm support */
5635
5636 #define IO_BUF_SIZE 32768
5637
5638 struct QEMUFile {
5639     FILE *outfile;
5640     BlockDriverState *bs;
5641     int is_file;
5642     int is_writable;
5643     int64_t base_offset;
5644     int64_t buf_offset; /* start of buffer when writing, end of buffer
5645                            when reading */
5646     int buf_index;
5647     int buf_size; /* 0 when writing */
5648     uint8_t buf[IO_BUF_SIZE];
5649 };
5650
5651 QEMUFile *qemu_fopen(const char *filename, const char *mode)
5652 {
5653     QEMUFile *f;
5654
5655     f = qemu_mallocz(sizeof(QEMUFile));
5656     if (!f)
5657         return NULL;
5658     if (!strcmp(mode, "wb")) {
5659         f->is_writable = 1;
5660     } else if (!strcmp(mode, "rb")) {
5661         f->is_writable = 0;
5662     } else {
5663         goto fail;
5664     }
5665     f->outfile = fopen(filename, mode);
5666     if (!f->outfile)
5667         goto fail;
5668     f->is_file = 1;
5669     return f;
5670  fail:
5671     if (f->outfile)
5672         fclose(f->outfile);
5673     qemu_free(f);
5674     return NULL;
5675 }
5676
5677 static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int64_t offset, int is_writable)
5678 {
5679     QEMUFile *f;
5680
5681     f = qemu_mallocz(sizeof(QEMUFile));
5682     if (!f)
5683         return NULL;
5684     f->is_file = 0;
5685     f->bs = bs;
5686     f->is_writable = is_writable;
5687     f->base_offset = offset;
5688     return f;
5689 }
5690
5691 void qemu_fflush(QEMUFile *f)
5692 {
5693     if (!f->is_writable)
5694         return;
5695     if (f->buf_index > 0) {
5696         if (f->is_file) {
5697             fseek(f->outfile, f->buf_offset, SEEK_SET);
5698             fwrite(f->buf, 1, f->buf_index, f->outfile);
5699         } else {
5700             bdrv_pwrite(f->bs, f->base_offset + f->buf_offset,
5701                         f->buf, f->buf_index);
5702         }
5703         f->buf_offset += f->buf_index;
5704         f->buf_index = 0;
5705     }
5706 }
5707
5708 static void qemu_fill_buffer(QEMUFile *f)
5709 {
5710     int len;
5711
5712     if (f->is_writable)
5713         return;
5714     if (f->is_file) {
5715         fseek(f->outfile, f->buf_offset, SEEK_SET);
5716         len = fread(f->buf, 1, IO_BUF_SIZE, f->outfile);
5717         if (len < 0)
5718             len = 0;
5719     } else {
5720         len = bdrv_pread(f->bs, f->base_offset + f->buf_offset,
5721                          f->buf, IO_BUF_SIZE);
5722         if (len < 0)
5723             len = 0;
5724     }
5725     f->buf_index = 0;
5726     f->buf_size = len;
5727     f->buf_offset += len;
5728 }
5729
5730 void qemu_fclose(QEMUFile *f)
5731 {
5732     if (f->is_writable)
5733         qemu_fflush(f);
5734     if (f->is_file) {
5735         fclose(f->outfile);
5736     }
5737     qemu_free(f);
5738 }
5739
5740 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
5741 {
5742     int l;
5743     while (size > 0) {
5744         l = IO_BUF_SIZE - f->buf_index;
5745         if (l > size)
5746             l = size;
5747         memcpy(f->buf + f->buf_index, buf, l);
5748         f->buf_index += l;
5749         buf += l;
5750         size -= l;
5751         if (f->buf_index >= IO_BUF_SIZE)
5752             qemu_fflush(f);
5753     }
5754 }
5755
5756 void qemu_put_byte(QEMUFile *f, int v)
5757 {
5758     f->buf[f->buf_index++] = v;
5759     if (f->buf_index >= IO_BUF_SIZE)
5760         qemu_fflush(f);
5761 }
5762
5763 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size1)
5764 {
5765     int size, l;
5766
5767     size = size1;
5768     while (size > 0) {
5769         l = f->buf_size - f->buf_index;
5770         if (l == 0) {
5771             qemu_fill_buffer(f);
5772             l = f->buf_size - f->buf_index;
5773             if (l == 0)
5774                 break;
5775         }
5776         if (l > size)
5777             l = size;
5778         memcpy(buf, f->buf + f->buf_index, l);
5779         f->buf_index += l;
5780         buf += l;
5781         size -= l;
5782     }
5783     return size1 - size;
5784 }
5785
5786 int qemu_get_byte(QEMUFile *f)
5787 {
5788     if (f->buf_index >= f->buf_size) {
5789         qemu_fill_buffer(f);
5790         if (f->buf_index >= f->buf_size)
5791             return 0;
5792     }
5793     return f->buf[f->buf_index++];
5794 }
5795
5796 int64_t qemu_ftell(QEMUFile *f)
5797 {
5798     return f->buf_offset - f->buf_size + f->buf_index;
5799 }
5800
5801 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
5802 {
5803     if (whence == SEEK_SET) {
5804         /* nothing to do */
5805     } else if (whence == SEEK_CUR) {
5806         pos += qemu_ftell(f);
5807     } else {
5808         /* SEEK_END not supported */
5809         return -1;
5810     }
5811     if (f->is_writable) {
5812         qemu_fflush(f);
5813         f->buf_offset = pos;
5814     } else {
5815         f->buf_offset = pos;
5816         f->buf_index = 0;
5817         f->buf_size = 0;
5818     }
5819     return pos;
5820 }
5821
5822 void qemu_put_be16(QEMUFile *f, unsigned int v)
5823 {
5824     qemu_put_byte(f, v >> 8);
5825     qemu_put_byte(f, v);
5826 }
5827
5828 void qemu_put_be32(QEMUFile *f, unsigned int v)
5829 {
5830     qemu_put_byte(f, v >> 24);
5831     qemu_put_byte(f, v >> 16);
5832     qemu_put_byte(f, v >> 8);
5833     qemu_put_byte(f, v);
5834 }
5835
5836 void qemu_put_be64(QEMUFile *f, uint64_t v)
5837 {
5838     qemu_put_be32(f, v >> 32);
5839     qemu_put_be32(f, v);
5840 }
5841
5842 unsigned int qemu_get_be16(QEMUFile *f)
5843 {
5844     unsigned int v;
5845     v = qemu_get_byte(f) << 8;
5846     v |= qemu_get_byte(f);
5847     return v;
5848 }
5849
5850 unsigned int qemu_get_be32(QEMUFile *f)
5851 {
5852     unsigned int v;
5853     v = qemu_get_byte(f) << 24;
5854     v |= qemu_get_byte(f) << 16;
5855     v |= qemu_get_byte(f) << 8;
5856     v |= qemu_get_byte(f);
5857     return v;
5858 }
5859
5860 uint64_t qemu_get_be64(QEMUFile *f)
5861 {
5862     uint64_t v;
5863     v = (uint64_t)qemu_get_be32(f) << 32;
5864     v |= qemu_get_be32(f);
5865     return v;
5866 }
5867
5868 typedef struct SaveStateEntry {
5869     char idstr[256];
5870     int instance_id;
5871     int version_id;
5872     SaveStateHandler *save_state;
5873     LoadStateHandler *load_state;
5874     void *opaque;
5875     struct SaveStateEntry *next;
5876 } SaveStateEntry;
5877
5878 static SaveStateEntry *first_se;
5879
5880 int register_savevm(const char *idstr,
5881                     int instance_id,
5882                     int version_id,
5883                     SaveStateHandler *save_state,
5884                     LoadStateHandler *load_state,
5885                     void *opaque)
5886 {
5887     SaveStateEntry *se, **pse;
5888
5889     se = qemu_malloc(sizeof(SaveStateEntry));
5890     if (!se)
5891         return -1;
5892     pstrcpy(se->idstr, sizeof(se->idstr), idstr);
5893     se->instance_id = instance_id;
5894     se->version_id = version_id;
5895     se->save_state = save_state;
5896     se->load_state = load_state;
5897     se->opaque = opaque;
5898     se->next = NULL;
5899
5900     /* add at the end of list */
5901     pse = &first_se;
5902     while (*pse != NULL)
5903         pse = &(*pse)->next;
5904     *pse = se;
5905     return 0;
5906 }
5907
5908 #define QEMU_VM_FILE_MAGIC   0x5145564d
5909 #define QEMU_VM_FILE_VERSION 0x00000002
5910
5911 static int qemu_savevm_state(QEMUFile *f)
5912 {
5913     SaveStateEntry *se;
5914     int len, ret;
5915     int64_t cur_pos, len_pos, total_len_pos;
5916
5917     qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
5918     qemu_put_be32(f, QEMU_VM_FILE_VERSION);
5919     total_len_pos = qemu_ftell(f);
5920     qemu_put_be64(f, 0); /* total size */
5921
5922     for(se = first_se; se != NULL; se = se->next) {
5923         /* ID string */
5924         len = strlen(se->idstr);
5925         qemu_put_byte(f, len);
5926         qemu_put_buffer(f, (uint8_t *)se->idstr, len);
5927
5928         qemu_put_be32(f, se->instance_id);
5929         qemu_put_be32(f, se->version_id);
5930
5931         /* record size: filled later */
5932         len_pos = qemu_ftell(f);
5933         qemu_put_be32(f, 0);
5934         se->save_state(f, se->opaque);
5935
5936         /* fill record size */
5937         cur_pos = qemu_ftell(f);
5938         len = cur_pos - len_pos - 4;
5939         qemu_fseek(f, len_pos, SEEK_SET);
5940         qemu_put_be32(f, len);
5941         qemu_fseek(f, cur_pos, SEEK_SET);
5942     }
5943     cur_pos = qemu_ftell(f);
5944     qemu_fseek(f, total_len_pos, SEEK_SET);
5945     qemu_put_be64(f, cur_pos - total_len_pos - 8);
5946     qemu_fseek(f, cur_pos, SEEK_SET);
5947
5948     ret = 0;
5949     return ret;
5950 }
5951
5952 static SaveStateEntry *find_se(const char *idstr, int instance_id)
5953 {
5954     SaveStateEntry *se;
5955
5956     for(se = first_se; se != NULL; se = se->next) {
5957         if (!strcmp(se->idstr, idstr) &&
5958             instance_id == se->instance_id)
5959             return se;
5960     }
5961     return NULL;
5962 }
5963
5964 static int qemu_loadvm_state(QEMUFile *f)
5965 {
5966     SaveStateEntry *se;
5967     int len, ret, instance_id, record_len, version_id;
5968     int64_t total_len, end_pos, cur_pos;
5969     unsigned int v;
5970     char idstr[256];
5971
5972     v = qemu_get_be32(f);
5973     if (v != QEMU_VM_FILE_MAGIC)
5974         goto fail;
5975     v = qemu_get_be32(f);
5976     if (v != QEMU_VM_FILE_VERSION) {
5977     fail:
5978         ret = -1;
5979         goto the_end;
5980     }
5981     total_len = qemu_get_be64(f);
5982     end_pos = total_len + qemu_ftell(f);
5983     for(;;) {
5984         if (qemu_ftell(f) >= end_pos)
5985             break;
5986         len = qemu_get_byte(f);
5987         qemu_get_buffer(f, (uint8_t *)idstr, len);
5988         idstr[len] = '\0';
5989         instance_id = qemu_get_be32(f);
5990         version_id = qemu_get_be32(f);
5991         record_len = qemu_get_be32(f);
5992 #if 0
5993         printf("idstr=%s instance=0x%x version=%d len=%d\n",
5994                idstr, instance_id, version_id, record_len);
5995 #endif
5996         cur_pos = qemu_ftell(f);
5997         se = find_se(idstr, instance_id);
5998         if (!se) {
5999             fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
6000                     instance_id, idstr);
6001         } else {
6002             ret = se->load_state(f, se->opaque, version_id);
6003             if (ret < 0) {
6004                 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
6005                         instance_id, idstr);
6006             }
6007         }
6008         /* always seek to exact end of record */
6009         qemu_fseek(f, cur_pos + record_len, SEEK_SET);
6010     }
6011     ret = 0;
6012  the_end:
6013     return ret;
6014 }
6015
6016 /* device can contain snapshots */
6017 static int bdrv_can_snapshot(BlockDriverState *bs)
6018 {
6019     return (bs &&
6020             !bdrv_is_removable(bs) &&
6021             !bdrv_is_read_only(bs));
6022 }
6023
6024 /* device must be snapshots in order to have a reliable snapshot */
6025 static int bdrv_has_snapshot(BlockDriverState *bs)
6026 {
6027     return (bs &&
6028             !bdrv_is_removable(bs) &&
6029             !bdrv_is_read_only(bs));
6030 }
6031
6032 static BlockDriverState *get_bs_snapshots(void)
6033 {
6034     BlockDriverState *bs;
6035     int i;
6036
6037     if (bs_snapshots)
6038         return bs_snapshots;
6039     for(i = 0; i <= nb_drives; i++) {
6040         bs = drives_table[i].bdrv;
6041         if (bdrv_can_snapshot(bs))
6042             goto ok;
6043     }
6044     return NULL;
6045  ok:
6046     bs_snapshots = bs;
6047     return bs;
6048 }
6049
6050 static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
6051                               const char *name)
6052 {
6053     QEMUSnapshotInfo *sn_tab, *sn;
6054     int nb_sns, i, ret;
6055
6056     ret = -ENOENT;
6057     nb_sns = bdrv_snapshot_list(bs, &sn_tab);
6058     if (nb_sns < 0)
6059         return ret;
6060     for(i = 0; i < nb_sns; i++) {
6061         sn = &sn_tab[i];
6062         if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
6063             *sn_info = *sn;
6064             ret = 0;
6065             break;
6066         }
6067     }
6068     qemu_free(sn_tab);
6069     return ret;
6070 }
6071
6072 void do_savevm(const char *name)
6073 {
6074     BlockDriverState *bs, *bs1;
6075     QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1;
6076     int must_delete, ret, i;
6077     BlockDriverInfo bdi1, *bdi = &bdi1;
6078     QEMUFile *f;
6079     int saved_vm_running;
6080 #ifdef _WIN32
6081     struct _timeb tb;
6082 #else
6083     struct timeval tv;
6084 #endif
6085
6086     bs = get_bs_snapshots();
6087     if (!bs) {
6088         term_printf("No block device can accept snapshots\n");
6089         return;
6090     }
6091
6092     /* ??? Should this occur after vm_stop?  */
6093     qemu_aio_flush();
6094
6095     saved_vm_running = vm_running;
6096     vm_stop(0);
6097
6098     must_delete = 0;
6099     if (name) {
6100         ret = bdrv_snapshot_find(bs, old_sn, name);
6101         if (ret >= 0) {
6102             must_delete = 1;
6103         }
6104     }
6105     memset(sn, 0, sizeof(*sn));
6106     if (must_delete) {
6107         pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
6108         pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
6109     } else {
6110         if (name)
6111             pstrcpy(sn->name, sizeof(sn->name), name);
6112     }
6113
6114     /* fill auxiliary fields */
6115 #ifdef _WIN32
6116     _ftime(&tb);
6117     sn->date_sec = tb.time;
6118     sn->date_nsec = tb.millitm * 1000000;
6119 #else
6120     gettimeofday(&tv, NULL);
6121     sn->date_sec = tv.tv_sec;
6122     sn->date_nsec = tv.tv_usec * 1000;
6123 #endif
6124     sn->vm_clock_nsec = qemu_get_clock(vm_clock);
6125
6126     if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
6127         term_printf("Device %s does not support VM state snapshots\n",
6128                     bdrv_get_device_name(bs));
6129         goto the_end;
6130     }
6131
6132     /* save the VM state */
6133     f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 1);
6134     if (!f) {
6135         term_printf("Could not open VM state file\n");
6136         goto the_end;
6137     }
6138     ret = qemu_savevm_state(f);
6139     sn->vm_state_size = qemu_ftell(f);
6140     qemu_fclose(f);
6141     if (ret < 0) {
6142         term_printf("Error %d while writing VM\n", ret);
6143         goto the_end;
6144     }
6145
6146     /* create the snapshots */
6147
6148     for(i = 0; i < nb_drives; i++) {
6149         bs1 = drives_table[i].bdrv;
6150         if (bdrv_has_snapshot(bs1)) {
6151             if (must_delete) {
6152                 ret = bdrv_snapshot_delete(bs1, old_sn->id_str);
6153                 if (ret < 0) {
6154                     term_printf("Error while deleting snapshot on '%s'\n",
6155                                 bdrv_get_device_name(bs1));
6156                 }
6157             }
6158             ret = bdrv_snapshot_create(bs1, sn);
6159             if (ret < 0) {
6160                 term_printf("Error while creating snapshot on '%s'\n",
6161                             bdrv_get_device_name(bs1));
6162             }
6163         }
6164     }
6165
6166  the_end:
6167     if (saved_vm_running)
6168         vm_start();
6169 }
6170
6171 void do_loadvm(const char *name)
6172 {
6173     BlockDriverState *bs, *bs1;
6174     BlockDriverInfo bdi1, *bdi = &bdi1;
6175     QEMUFile *f;
6176     int i, ret;
6177     int saved_vm_running;
6178
6179     bs = get_bs_snapshots();
6180     if (!bs) {
6181         term_printf("No block device supports snapshots\n");
6182         return;
6183     }
6184
6185     /* Flush all IO requests so they don't interfere with the new state.  */
6186     qemu_aio_flush();
6187
6188     saved_vm_running = vm_running;
6189     vm_stop(0);
6190
6191     for(i = 0; i <= nb_drives; i++) {
6192         bs1 = drives_table[i].bdrv;
6193         if (bdrv_has_snapshot(bs1)) {
6194             ret = bdrv_snapshot_goto(bs1, name);
6195             if (ret < 0) {
6196                 if (bs != bs1)
6197                     term_printf("Warning: ");
6198                 switch(ret) {
6199                 case -ENOTSUP:
6200                     term_printf("Snapshots not supported on device '%s'\n",
6201                                 bdrv_get_device_name(bs1));
6202                     break;
6203                 case -ENOENT:
6204                     term_printf("Could not find snapshot '%s' on device '%s'\n",
6205                                 name, bdrv_get_device_name(bs1));
6206                     break;
6207                 default:
6208                     term_printf("Error %d while activating snapshot on '%s'\n",
6209                                 ret, bdrv_get_device_name(bs1));
6210                     break;
6211                 }
6212                 /* fatal on snapshot block device */
6213                 if (bs == bs1)
6214                     goto the_end;
6215             }
6216         }
6217     }
6218
6219     if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
6220         term_printf("Device %s does not support VM state snapshots\n",
6221                     bdrv_get_device_name(bs));
6222         return;
6223     }
6224
6225     /* restore the VM state */
6226     f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 0);
6227     if (!f) {
6228         term_printf("Could not open VM state file\n");
6229         goto the_end;
6230     }
6231     ret = qemu_loadvm_state(f);
6232     qemu_fclose(f);
6233     if (ret < 0) {
6234         term_printf("Error %d while loading VM state\n", ret);
6235     }
6236  the_end:
6237     if (saved_vm_running)
6238         vm_start();
6239 }
6240
6241 void do_delvm(const char *name)
6242 {
6243     BlockDriverState *bs, *bs1;
6244     int i, ret;
6245
6246     bs = get_bs_snapshots();
6247     if (!bs) {
6248         term_printf("No block device supports snapshots\n");
6249         return;
6250     }
6251
6252     for(i = 0; i <= nb_drives; i++) {
6253         bs1 = drives_table[i].bdrv;
6254         if (bdrv_has_snapshot(bs1)) {
6255             ret = bdrv_snapshot_delete(bs1, name);
6256             if (ret < 0) {
6257                 if (ret == -ENOTSUP)
6258                     term_printf("Snapshots not supported on device '%s'\n",
6259                                 bdrv_get_device_name(bs1));
6260                 else
6261                     term_printf("Error %d while deleting snapshot on '%s'\n",
6262                                 ret, bdrv_get_device_name(bs1));
6263             }
6264         }
6265     }
6266 }
6267
6268 void do_info_snapshots(void)
6269 {
6270     BlockDriverState *bs, *bs1;
6271     QEMUSnapshotInfo *sn_tab, *sn;
6272     int nb_sns, i;
6273     char buf[256];
6274
6275     bs = get_bs_snapshots();
6276     if (!bs) {
6277         term_printf("No available block device supports snapshots\n");
6278         return;
6279     }
6280     term_printf("Snapshot devices:");
6281     for(i = 0; i <= nb_drives; i++) {
6282         bs1 = drives_table[i].bdrv;
6283         if (bdrv_has_snapshot(bs1)) {
6284             if (bs == bs1)
6285                 term_printf(" %s", bdrv_get_device_name(bs1));
6286         }
6287     }
6288     term_printf("\n");
6289
6290     nb_sns = bdrv_snapshot_list(bs, &sn_tab);
6291     if (nb_sns < 0) {
6292         term_printf("bdrv_snapshot_list: error %d\n", nb_sns);
6293         return;
6294     }
6295     term_printf("Snapshot list (from %s):\n", bdrv_get_device_name(bs));
6296     term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL));
6297     for(i = 0; i < nb_sns; i++) {
6298         sn = &sn_tab[i];
6299         term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn));
6300     }
6301     qemu_free(sn_tab);
6302 }
6303
6304 /***********************************************************/
6305 /* cpu save/restore */
6306
6307 #if defined(TARGET_I386)
6308
6309 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
6310 {
6311     qemu_put_be32(f, dt->selector);
6312     qemu_put_betl(f, dt->base);
6313     qemu_put_be32(f, dt->limit);
6314     qemu_put_be32(f, dt->flags);
6315 }
6316
6317 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
6318 {
6319     dt->selector = qemu_get_be32(f);
6320     dt->base = qemu_get_betl(f);
6321     dt->limit = qemu_get_be32(f);
6322     dt->flags = qemu_get_be32(f);
6323 }
6324
6325 void cpu_save(QEMUFile *f, void *opaque)
6326 {
6327     CPUState *env = opaque;
6328     uint16_t fptag, fpus, fpuc, fpregs_format;
6329     uint32_t hflags;
6330     int i;
6331
6332     for(i = 0; i < CPU_NB_REGS; i++)
6333         qemu_put_betls(f, &env->regs[i]);
6334     qemu_put_betls(f, &env->eip);
6335     qemu_put_betls(f, &env->eflags);
6336     hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
6337     qemu_put_be32s(f, &hflags);
6338
6339     /* FPU */
6340     fpuc = env->fpuc;
6341     fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
6342     fptag = 0;
6343     for(i = 0; i < 8; i++) {
6344         fptag |= ((!env->fptags[i]) << i);
6345     }
6346
6347     qemu_put_be16s(f, &fpuc);
6348     qemu_put_be16s(f, &fpus);
6349     qemu_put_be16s(f, &fptag);
6350
6351 #ifdef USE_X86LDOUBLE
6352     fpregs_format = 0;
6353 #else
6354     fpregs_format = 1;
6355 #endif
6356     qemu_put_be16s(f, &fpregs_format);
6357
6358     for(i = 0; i < 8; i++) {
6359 #ifdef USE_X86LDOUBLE
6360         {
6361             uint64_t mant;
6362             uint16_t exp;
6363             /* we save the real CPU data (in case of MMX usage only 'mant'
6364                contains the MMX register */
6365             cpu_get_fp80(&mant, &exp, env->fpregs[i].d);
6366             qemu_put_be64(f, mant);
6367             qemu_put_be16(f, exp);
6368         }
6369 #else
6370         /* if we use doubles for float emulation, we save the doubles to
6371            avoid losing information in case of MMX usage. It can give
6372            problems if the image is restored on a CPU where long
6373            doubles are used instead. */
6374         qemu_put_be64(f, env->fpregs[i].mmx.MMX_Q(0));
6375 #endif
6376     }
6377
6378     for(i = 0; i < 6; i++)
6379         cpu_put_seg(f, &env->segs[i]);
6380     cpu_put_seg(f, &env->ldt);
6381     cpu_put_seg(f, &env->tr);
6382     cpu_put_seg(f, &env->gdt);
6383     cpu_put_seg(f, &env->idt);
6384
6385     qemu_put_be32s(f, &env->sysenter_cs);
6386     qemu_put_be32s(f, &env->sysenter_esp);
6387     qemu_put_be32s(f, &env->sysenter_eip);
6388
6389     qemu_put_betls(f, &env->cr[0]);
6390     qemu_put_betls(f, &env->cr[2]);
6391     qemu_put_betls(f, &env->cr[3]);
6392     qemu_put_betls(f, &env->cr[4]);
6393
6394     for(i = 0; i < 8; i++)
6395         qemu_put_betls(f, &env->dr[i]);
6396
6397     /* MMU */
6398     qemu_put_be32s(f, &env->a20_mask);
6399
6400     /* XMM */
6401     qemu_put_be32s(f, &env->mxcsr);
6402     for(i = 0; i < CPU_NB_REGS; i++) {
6403         qemu_put_be64s(f, &env->xmm_regs[i].XMM_Q(0));
6404         qemu_put_be64s(f, &env->xmm_regs[i].XMM_Q(1));
6405     }
6406
6407 #ifdef TARGET_X86_64
6408     qemu_put_be64s(f, &env->efer);
6409     qemu_put_be64s(f, &env->star);
6410     qemu_put_be64s(f, &env->lstar);
6411     qemu_put_be64s(f, &env->cstar);
6412     qemu_put_be64s(f, &env->fmask);
6413     qemu_put_be64s(f, &env->kernelgsbase);
6414 #endif
6415     qemu_put_be32s(f, &env->smbase);
6416 }
6417
6418 #ifdef USE_X86LDOUBLE
6419 /* XXX: add that in a FPU generic layer */
6420 union x86_longdouble {
6421     uint64_t mant;
6422     uint16_t exp;
6423 };
6424
6425 #define MANTD1(fp)      (fp & ((1LL << 52) - 1))
6426 #define EXPBIAS1 1023
6427 #define EXPD1(fp)       ((fp >> 52) & 0x7FF)
6428 #define SIGND1(fp)      ((fp >> 32) & 0x80000000)
6429
6430 static void fp64_to_fp80(union x86_longdouble *p, uint64_t temp)
6431 {
6432     int e;
6433     /* mantissa */
6434     p->mant = (MANTD1(temp) << 11) | (1LL << 63);
6435     /* exponent + sign */
6436     e = EXPD1(temp) - EXPBIAS1 + 16383;
6437     e |= SIGND1(temp) >> 16;
6438     p->exp = e;
6439 }
6440 #endif
6441
6442 int cpu_load(QEMUFile *f, void *opaque, int version_id)
6443 {
6444     CPUState *env = opaque;
6445     int i, guess_mmx;
6446     uint32_t hflags;
6447     uint16_t fpus, fpuc, fptag, fpregs_format;
6448
6449     if (version_id != 3 && version_id != 4)
6450         return -EINVAL;
6451     for(i = 0; i < CPU_NB_REGS; i++)
6452         qemu_get_betls(f, &env->regs[i]);
6453     qemu_get_betls(f, &env->eip);
6454     qemu_get_betls(f, &env->eflags);
6455     qemu_get_be32s(f, &hflags);
6456
6457     qemu_get_be16s(f, &fpuc);
6458     qemu_get_be16s(f, &fpus);
6459     qemu_get_be16s(f, &fptag);
6460     qemu_get_be16s(f, &fpregs_format);
6461
6462     /* NOTE: we cannot always restore the FPU state if the image come
6463        from a host with a different 'USE_X86LDOUBLE' define. We guess
6464        if we are in an MMX state to restore correctly in that case. */
6465     guess_mmx = ((fptag == 0xff) && (fpus & 0x3800) == 0);
6466     for(i = 0; i < 8; i++) {
6467         uint64_t mant;
6468         uint16_t exp;
6469
6470         switch(fpregs_format) {
6471         case 0:
6472             mant = qemu_get_be64(f);
6473             exp = qemu_get_be16(f);
6474 #ifdef USE_X86LDOUBLE
6475             env->fpregs[i].d = cpu_set_fp80(mant, exp);
6476 #else
6477             /* difficult case */
6478             if (guess_mmx)
6479                 env->fpregs[i].mmx.MMX_Q(0) = mant;
6480             else
6481                 env->fpregs[i].d = cpu_set_fp80(mant, exp);
6482 #endif
6483             break;
6484         case 1:
6485             mant = qemu_get_be64(f);
6486 #ifdef USE_X86LDOUBLE
6487             {
6488                 union x86_longdouble *p;
6489                 /* difficult case */
6490                 p = (void *)&env->fpregs[i];
6491                 if (guess_mmx) {
6492                     p->mant = mant;
6493                     p->exp = 0xffff;
6494                 } else {
6495                     fp64_to_fp80(p, mant);
6496                 }
6497             }
6498 #else
6499             env->fpregs[i].mmx.MMX_Q(0) = mant;
6500 #endif
6501             break;
6502         default:
6503             return -EINVAL;
6504         }
6505     }
6506
6507     env->fpuc = fpuc;
6508     /* XXX: restore FPU round state */
6509     env->fpstt = (fpus >> 11) & 7;
6510     env->fpus = fpus & ~0x3800;
6511     fptag ^= 0xff;
6512     for(i = 0; i < 8; i++) {
6513         env->fptags[i] = (fptag >> i) & 1;
6514     }
6515
6516     for(i = 0; i < 6; i++)
6517         cpu_get_seg(f, &env->segs[i]);
6518     cpu_get_seg(f, &env->ldt);
6519     cpu_get_seg(f, &env->tr);
6520     cpu_get_seg(f, &env->gdt);
6521     cpu_get_seg(f, &env->idt);
6522
6523     qemu_get_be32s(f, &env->sysenter_cs);
6524     qemu_get_be32s(f, &env->sysenter_esp);
6525     qemu_get_be32s(f, &env->sysenter_eip);
6526
6527     qemu_get_betls(f, &env->cr[0]);
6528     qemu_get_betls(f, &env->cr[2]);
6529     qemu_get_betls(f, &env->cr[3]);
6530     qemu_get_betls(f, &env->cr[4]);
6531
6532     for(i = 0; i < 8; i++)
6533         qemu_get_betls(f, &env->dr[i]);
6534
6535     /* MMU */
6536     qemu_get_be32s(f, &env->a20_mask);
6537
6538     qemu_get_be32s(f, &env->mxcsr);
6539     for(i = 0; i < CPU_NB_REGS; i++) {
6540         qemu_get_be64s(f, &env->xmm_regs[i].XMM_Q(0));
6541         qemu_get_be64s(f, &env->xmm_regs[i].XMM_Q(1));
6542     }
6543
6544 #ifdef TARGET_X86_64
6545     qemu_get_be64s(f, &env->efer);
6546     qemu_get_be64s(f, &env->star);
6547     qemu_get_be64s(f, &env->lstar);
6548     qemu_get_be64s(f, &env->cstar);
6549     qemu_get_be64s(f, &env->fmask);
6550     qemu_get_be64s(f, &env->kernelgsbase);
6551 #endif
6552     if (version_id >= 4)
6553         qemu_get_be32s(f, &env->smbase);
6554
6555     /* XXX: compute hflags from scratch, except for CPL and IIF */
6556     env->hflags = hflags;
6557     tlb_flush(env, 1);
6558     return 0;
6559 }
6560
6561 #elif defined(TARGET_PPC)
6562 void cpu_save(QEMUFile *f, void *opaque)
6563 {
6564 }
6565
6566 int cpu_load(QEMUFile *f, void *opaque, int version_id)
6567 {
6568     return 0;
6569 }
6570
6571 #elif defined(TARGET_MIPS)
6572 void cpu_save(QEMUFile *f, void *opaque)
6573 {
6574 }
6575
6576 int cpu_load(QEMUFile *f, void *opaque, int version_id)
6577 {
6578     return 0;
6579 }
6580
6581 #elif defined(TARGET_SPARC)
6582 void cpu_save(QEMUFile *f, void *opaque)
6583 {
6584     CPUState *env = opaque;
6585     int i;
6586     uint32_t tmp;
6587
6588     for(i = 0; i < 8; i++)
6589         qemu_put_betls(f, &env->gregs[i]);
6590     for(i = 0; i < NWINDOWS * 16; i++)
6591         qemu_put_betls(f, &env->regbase[i]);
6592
6593     /* FPU */
6594     for(i = 0; i < TARGET_FPREGS; i++) {
6595         union {
6596             float32 f;
6597             uint32_t i;
6598         } u;
6599         u.f = env->fpr[i];
6600         qemu_put_be32(f, u.i);
6601     }
6602
6603     qemu_put_betls(f, &env->pc);
6604     qemu_put_betls(f, &env->npc);
6605     qemu_put_betls(f, &env->y);
6606     tmp = GET_PSR(env);
6607     qemu_put_be32(f, tmp);
6608     qemu_put_betls(f, &env->fsr);
6609     qemu_put_betls(f, &env->tbr);
6610 #ifndef TARGET_SPARC64
6611     qemu_put_be32s(f, &env->wim);
6612     /* MMU */
6613     for(i = 0; i < 16; i++)
6614         qemu_put_be32s(f, &env->mmuregs[i]);
6615 #endif
6616 }
6617
6618 int cpu_load(QEMUFile *f, void *opaque, int version_id)
6619 {
6620     CPUState *env = opaque;
6621     int i;
6622     uint32_t tmp;
6623
6624     for(i = 0; i < 8; i++)
6625         qemu_get_betls(f, &env->gregs[i]);
6626     for(i = 0; i < NWINDOWS * 16; i++)
6627         qemu_get_betls(f, &env->regbase[i]);
6628
6629     /* FPU */
6630     for(i = 0; i < TARGET_FPREGS; i++) {
6631         union {
6632             float32 f;
6633             uint32_t i;
6634         } u;
6635         u.i = qemu_get_be32(f);
6636         env->fpr[i] = u.f;
6637     }
6638
6639     qemu_get_betls(f, &env->pc);
6640     qemu_get_betls(f, &env->npc);
6641     qemu_get_betls(f, &env->y);
6642     tmp = qemu_get_be32(f);
6643     env->cwp = 0; /* needed to ensure that the wrapping registers are
6644                      correctly updated */
6645     PUT_PSR(env, tmp);
6646     qemu_get_betls(f, &env->fsr);
6647     qemu_get_betls(f, &env->tbr);
6648 #ifndef TARGET_SPARC64
6649     qemu_get_be32s(f, &env->wim);
6650     /* MMU */
6651     for(i = 0; i < 16; i++)
6652         qemu_get_be32s(f, &env->mmuregs[i]);
6653 #endif
6654     tlb_flush(env, 1);
6655     return 0;
6656 }
6657
6658 #elif defined(TARGET_ARM)
6659
6660 void cpu_save(QEMUFile *f, void *opaque)
6661 {
6662     int i;
6663     CPUARMState *env = (CPUARMState *)opaque;
6664
6665     for (i = 0; i < 16; i++) {
6666         qemu_put_be32(f, env->regs[i]);
6667     }
6668     qemu_put_be32(f, cpsr_read(env));
6669     qemu_put_be32(f, env->spsr);
6670     for (i = 0; i < 6; i++) {
6671         qemu_put_be32(f, env->banked_spsr[i]);
6672         qemu_put_be32(f, env->banked_r13[i]);
6673         qemu_put_be32(f, env->banked_r14[i]);
6674     }
6675     for (i = 0; i < 5; i++) {
6676         qemu_put_be32(f, env->usr_regs[i]);
6677         qemu_put_be32(f, env->fiq_regs[i]);
6678     }
6679     qemu_put_be32(f, env->cp15.c0_cpuid);
6680     qemu_put_be32(f, env->cp15.c0_cachetype);
6681     qemu_put_be32(f, env->cp15.c1_sys);
6682     qemu_put_be32(f, env->cp15.c1_coproc);
6683     qemu_put_be32(f, env->cp15.c1_xscaleauxcr);
6684     qemu_put_be32(f, env->cp15.c2_base0);
6685     qemu_put_be32(f, env->cp15.c2_base1);
6686     qemu_put_be32(f, env->cp15.c2_mask);
6687     qemu_put_be32(f, env->cp15.c2_data);
6688     qemu_put_be32(f, env->cp15.c2_insn);
6689     qemu_put_be32(f, env->cp15.c3);
6690     qemu_put_be32(f, env->cp15.c5_insn);
6691     qemu_put_be32(f, env->cp15.c5_data);
6692     for (i = 0; i < 8; i++) {
6693         qemu_put_be32(f, env->cp15.c6_region[i]);
6694     }
6695     qemu_put_be32(f, env->cp15.c6_insn);
6696     qemu_put_be32(f, env->cp15.c6_data);
6697     qemu_put_be32(f, env->cp15.c9_insn);
6698     qemu_put_be32(f, env->cp15.c9_data);
6699     qemu_put_be32(f, env->cp15.c13_fcse);
6700     qemu_put_be32(f, env->cp15.c13_context);
6701     qemu_put_be32(f, env->cp15.c13_tls1);
6702     qemu_put_be32(f, env->cp15.c13_tls2);
6703     qemu_put_be32(f, env->cp15.c13_tls3);
6704     qemu_put_be32(f, env->cp15.c15_cpar);
6705
6706     qemu_put_be32(f, env->features);
6707
6708     if (arm_feature(env, ARM_FEATURE_VFP)) {
6709         for (i = 0;  i < 16; i++) {
6710             CPU_DoubleU u;
6711             u.d = env->vfp.regs[i];
6712             qemu_put_be32(f, u.l.upper);
6713             qemu_put_be32(f, u.l.lower);
6714         }
6715         for (i = 0; i < 16; i++) {
6716             qemu_put_be32(f, env->vfp.xregs[i]);
6717         }
6718
6719         /* TODO: Should use proper FPSCR access functions.  */
6720         qemu_put_be32(f, env->vfp.vec_len);
6721         qemu_put_be32(f, env->vfp.vec_stride);
6722
6723         if (arm_feature(env, ARM_FEATURE_VFP3)) {
6724             for (i = 16;  i < 32; i++) {
6725                 CPU_DoubleU u;
6726                 u.d = env->vfp.regs[i];
6727                 qemu_put_be32(f, u.l.upper);
6728                 qemu_put_be32(f, u.l.lower);
6729             }
6730         }
6731     }
6732
6733     if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
6734         for (i = 0; i < 16; i++) {
6735             qemu_put_be64(f, env->iwmmxt.regs[i]);
6736         }
6737         for (i = 0; i < 16; i++) {
6738             qemu_put_be32(f, env->iwmmxt.cregs[i]);
6739         }
6740     }
6741
6742     if (arm_feature(env, ARM_FEATURE_M)) {
6743         qemu_put_be32(f, env->v7m.other_sp);
6744         qemu_put_be32(f, env->v7m.vecbase);
6745         qemu_put_be32(f, env->v7m.basepri);
6746         qemu_put_be32(f, env->v7m.control);
6747         qemu_put_be32(f, env->v7m.current_sp);
6748         qemu_put_be32(f, env->v7m.exception);
6749     }
6750 }
6751
6752 int cpu_load(QEMUFile *f, void *opaque, int version_id)
6753 {
6754     CPUARMState *env = (CPUARMState *)opaque;
6755     int i;
6756
6757     if (version_id != ARM_CPU_SAVE_VERSION)
6758         return -EINVAL;
6759
6760     for (i = 0; i < 16; i++) {
6761         env->regs[i] = qemu_get_be32(f);
6762     }
6763     cpsr_write(env, qemu_get_be32(f), 0xffffffff);
6764     env->spsr = qemu_get_be32(f);
6765     for (i = 0; i < 6; i++) {
6766         env->banked_spsr[i] = qemu_get_be32(f);
6767         env->banked_r13[i] = qemu_get_be32(f);
6768         env->banked_r14[i] = qemu_get_be32(f);
6769     }
6770     for (i = 0; i < 5; i++) {
6771         env->usr_regs[i] = qemu_get_be32(f);
6772         env->fiq_regs[i] = qemu_get_be32(f);
6773     }
6774     env->cp15.c0_cpuid = qemu_get_be32(f);
6775     env->cp15.c0_cachetype = qemu_get_be32(f);
6776     env->cp15.c1_sys = qemu_get_be32(f);
6777     env->cp15.c1_coproc = qemu_get_be32(f);
6778     env->cp15.c1_xscaleauxcr = qemu_get_be32(f);
6779     env->cp15.c2_base0 = qemu_get_be32(f);
6780     env->cp15.c2_base1 = qemu_get_be32(f);
6781     env->cp15.c2_mask = qemu_get_be32(f);
6782     env->cp15.c2_data = qemu_get_be32(f);
6783     env->cp15.c2_insn = qemu_get_be32(f);
6784     env->cp15.c3 = qemu_get_be32(f);
6785     env->cp15.c5_insn = qemu_get_be32(f);
6786     env->cp15.c5_data = qemu_get_be32(f);
6787     for (i = 0; i < 8; i++) {
6788         env->cp15.c6_region[i] = qemu_get_be32(f);
6789     }
6790     env->cp15.c6_insn = qemu_get_be32(f);
6791     env->cp15.c6_data = qemu_get_be32(f);
6792     env->cp15.c9_insn = qemu_get_be32(f);
6793     env->cp15.c9_data = qemu_get_be32(f);
6794     env->cp15.c13_fcse = qemu_get_be32(f);
6795     env->cp15.c13_context = qemu_get_be32(f);
6796     env->cp15.c13_tls1 = qemu_get_be32(f);
6797     env->cp15.c13_tls2 = qemu_get_be32(f);
6798     env->cp15.c13_tls3 = qemu_get_be32(f);
6799     env->cp15.c15_cpar = qemu_get_be32(f);
6800
6801     env->features = qemu_get_be32(f);
6802
6803     if (arm_feature(env, ARM_FEATURE_VFP)) {
6804         for (i = 0;  i < 16; i++) {
6805             CPU_DoubleU u;
6806             u.l.upper = qemu_get_be32(f);
6807             u.l.lower = qemu_get_be32(f);
6808             env->vfp.regs[i] = u.d;
6809         }
6810         for (i = 0; i < 16; i++) {
6811             env->vfp.xregs[i] = qemu_get_be32(f);
6812         }
6813
6814         /* TODO: Should use proper FPSCR access functions.  */
6815         env->vfp.vec_len = qemu_get_be32(f);
6816         env->vfp.vec_stride = qemu_get_be32(f);
6817
6818         if (arm_feature(env, ARM_FEATURE_VFP3)) {
6819             for (i = 0;  i < 16; i++) {
6820                 CPU_DoubleU u;
6821                 u.l.upper = qemu_get_be32(f);
6822                 u.l.lower = qemu_get_be32(f);
6823                 env->vfp.regs[i] = u.d;
6824             }
6825         }
6826     }
6827
6828     if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
6829         for (i = 0; i < 16; i++) {
6830             env->iwmmxt.regs[i] = qemu_get_be64(f);
6831         }
6832         for (i = 0; i < 16; i++) {
6833             env->iwmmxt.cregs[i] = qemu_get_be32(f);
6834         }
6835     }
6836
6837     if (arm_feature(env, ARM_FEATURE_M)) {
6838         env->v7m.other_sp = qemu_get_be32(f);
6839         env->v7m.vecbase = qemu_get_be32(f);
6840         env->v7m.basepri = qemu_get_be32(f);
6841         env->v7m.control = qemu_get_be32(f);
6842         env->v7m.current_sp = qemu_get_be32(f);
6843         env->v7m.exception = qemu_get_be32(f);
6844     }
6845
6846     return 0;
6847 }
6848
6849 #else
6850
6851 //#warning No CPU save/restore functions
6852
6853 #endif
6854
6855 /***********************************************************/
6856 /* ram save/restore */
6857
6858 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
6859 {
6860     int v;
6861
6862     v = qemu_get_byte(f);
6863     switch(v) {
6864     case 0:
6865         if (qemu_get_buffer(f, buf, len) != len)
6866             return -EIO;
6867         break;
6868     case 1:
6869         v = qemu_get_byte(f);
6870         memset(buf, v, len);
6871         break;
6872     default:
6873         return -EINVAL;
6874     }
6875     return 0;
6876 }
6877
6878 static int ram_load_v1(QEMUFile *f, void *opaque)
6879 {
6880     int i, ret;
6881
6882     if (qemu_get_be32(f) != phys_ram_size)
6883         return -EINVAL;
6884     for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
6885         ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
6886         if (ret)
6887             return ret;
6888     }
6889     return 0;
6890 }
6891
6892 #define BDRV_HASH_BLOCK_SIZE 1024
6893 #define IOBUF_SIZE 4096
6894 #define RAM_CBLOCK_MAGIC 0xfabe
6895
6896 typedef struct RamCompressState {
6897     z_stream zstream;
6898     QEMUFile *f;
6899     uint8_t buf[IOBUF_SIZE];
6900 } RamCompressState;
6901
6902 static int ram_compress_open(RamCompressState *s, QEMUFile *f)
6903 {
6904     int ret;
6905     memset(s, 0, sizeof(*s));
6906     s->f = f;
6907     ret = deflateInit2(&s->zstream, 1,
6908                        Z_DEFLATED, 15,
6909                        9, Z_DEFAULT_STRATEGY);
6910     if (ret != Z_OK)
6911         return -1;
6912     s->zstream.avail_out = IOBUF_SIZE;
6913     s->zstream.next_out = s->buf;
6914     return 0;
6915 }
6916
6917 static void ram_put_cblock(RamCompressState *s, const uint8_t *buf, int len)
6918 {
6919     qemu_put_be16(s->f, RAM_CBLOCK_MAGIC);
6920     qemu_put_be16(s->f, len);
6921     qemu_put_buffer(s->f, buf, len);
6922 }
6923
6924 static int ram_compress_buf(RamCompressState *s, const uint8_t *buf, int len)
6925 {
6926     int ret;
6927
6928     s->zstream.avail_in = len;
6929     s->zstream.next_in = (uint8_t *)buf;
6930     while (s->zstream.avail_in > 0) {
6931         ret = deflate(&s->zstream, Z_NO_FLUSH);
6932         if (ret != Z_OK)
6933             return -1;
6934         if (s->zstream.avail_out == 0) {
6935             ram_put_cblock(s, s->buf, IOBUF_SIZE);
6936             s->zstream.avail_out = IOBUF_SIZE;
6937             s->zstream.next_out = s->buf;
6938         }
6939     }
6940     return 0;
6941 }
6942
6943 static void ram_compress_close(RamCompressState *s)
6944 {
6945     int len, ret;
6946
6947     /* compress last bytes */
6948     for(;;) {
6949         ret = deflate(&s->zstream, Z_FINISH);
6950         if (ret == Z_OK || ret == Z_STREAM_END) {
6951             len = IOBUF_SIZE - s->zstream.avail_out;
6952             if (len > 0) {
6953                 ram_put_cblock(s, s->buf, len);
6954             }
6955             s->zstream.avail_out = IOBUF_SIZE;
6956             s->zstream.next_out = s->buf;
6957             if (ret == Z_STREAM_END)
6958                 break;
6959         } else {
6960             goto fail;
6961         }
6962     }
6963 fail:
6964     deflateEnd(&s->zstream);
6965 }
6966
6967 typedef struct RamDecompressState {
6968     z_stream zstream;
6969     QEMUFile *f;
6970     uint8_t buf[IOBUF_SIZE];
6971 } RamDecompressState;
6972
6973 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
6974 {
6975     int ret;
6976     memset(s, 0, sizeof(*s));
6977     s->f = f;
6978     ret = inflateInit(&s->zstream);
6979     if (ret != Z_OK)
6980         return -1;
6981     return 0;
6982 }
6983
6984 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
6985 {
6986     int ret, clen;
6987
6988     s->zstream.avail_out = len;
6989     s->zstream.next_out = buf;
6990     while (s->zstream.avail_out > 0) {
6991         if (s->zstream.avail_in == 0) {
6992             if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
6993                 return -1;
6994             clen = qemu_get_be16(s->f);
6995             if (clen > IOBUF_SIZE)
6996                 return -1;
6997             qemu_get_buffer(s->f, s->buf, clen);
6998             s->zstream.avail_in = clen;
6999             s->zstream.next_in = s->buf;
7000         }
7001         ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
7002         if (ret != Z_OK && ret != Z_STREAM_END) {
7003             return -1;
7004         }
7005     }
7006     return 0;
7007 }
7008
7009 static void ram_decompress_close(RamDecompressState *s)
7010 {
7011     inflateEnd(&s->zstream);
7012 }
7013
7014 static void ram_save(QEMUFile *f, void *opaque)
7015 {
7016     int i;
7017     RamCompressState s1, *s = &s1;
7018     uint8_t buf[10];
7019
7020     qemu_put_be32(f, phys_ram_size);
7021     if (ram_compress_open(s, f) < 0)
7022         return;
7023     for(i = 0; i < phys_ram_size; i+= BDRV_HASH_BLOCK_SIZE) {
7024 #if 0
7025         if (tight_savevm_enabled) {
7026             int64_t sector_num;
7027             int j;
7028
7029             /* find if the memory block is available on a virtual
7030                block device */
7031             sector_num = -1;
7032             for(j = 0; j < nb_drives; j++) {
7033                 sector_num = bdrv_hash_find(drives_table[j].bdrv,
7034                                             phys_ram_base + i,
7035                                             BDRV_HASH_BLOCK_SIZE);
7036                 if (sector_num >= 0)
7037                     break;
7038             }
7039             if (j == nb_drives)
7040                 goto normal_compress;
7041             buf[0] = 1;
7042             buf[1] = j;
7043             cpu_to_be64wu((uint64_t *)(buf + 2), sector_num);
7044             ram_compress_buf(s, buf, 10);
7045         } else
7046 #endif
7047         {
7048             //        normal_compress:
7049             buf[0] = 0;
7050             ram_compress_buf(s, buf, 1);
7051             ram_compress_buf(s, phys_ram_base + i, BDRV_HASH_BLOCK_SIZE);
7052         }
7053     }
7054     ram_compress_close(s);
7055 }
7056
7057 static int ram_load(QEMUFile *f, void *opaque, int version_id)
7058 {
7059     RamDecompressState s1, *s = &s1;
7060     uint8_t buf[10];
7061     int i;
7062
7063     if (version_id == 1)
7064         return ram_load_v1(f, opaque);
7065     if (version_id != 2)
7066         return -EINVAL;
7067     if (qemu_get_be32(f) != phys_ram_size)
7068         return -EINVAL;
7069     if (ram_decompress_open(s, f) < 0)
7070         return -EINVAL;
7071     for(i = 0; i < phys_ram_size; i+= BDRV_HASH_BLOCK_SIZE) {
7072         if (ram_decompress_buf(s, buf, 1) < 0) {
7073             fprintf(stderr, "Error while reading ram block header\n");
7074             goto error;
7075         }
7076         if (buf[0] == 0) {
7077             if (ram_decompress_buf(s, phys_ram_base + i, BDRV_HASH_BLOCK_SIZE) < 0) {
7078                 fprintf(stderr, "Error while reading ram block address=0x%08x", i);
7079                 goto error;
7080             }
7081         } else
7082 #if 0
7083         if (buf[0] == 1) {
7084             int bs_index;
7085             int64_t sector_num;
7086
7087             ram_decompress_buf(s, buf + 1, 9);
7088             bs_index = buf[1];
7089             sector_num = be64_to_cpupu((const uint64_t *)(buf + 2));
7090             if (bs_index >= nb_drives) {
7091                 fprintf(stderr, "Invalid block device index %d\n", bs_index);
7092                 goto error;
7093             }
7094             if (bdrv_read(drives_table[bs_index].bdrv, sector_num,
7095                           phys_ram_base + i,
7096                           BDRV_HASH_BLOCK_SIZE / 512) < 0) {
7097                 fprintf(stderr, "Error while reading sector %d:%" PRId64 "\n",
7098                         bs_index, sector_num);
7099                 goto error;
7100             }
7101         } else
7102 #endif
7103         {
7104         error:
7105             printf("Error block header\n");
7106             return -EINVAL;
7107         }
7108     }
7109     ram_decompress_close(s);
7110     return 0;
7111 }
7112
7113 /***********************************************************/
7114 /* bottom halves (can be seen as timers which expire ASAP) */
7115
7116 struct QEMUBH {
7117     QEMUBHFunc *cb;
7118     void *opaque;
7119     int scheduled;
7120     QEMUBH *next;
7121 };
7122
7123 static QEMUBH *first_bh = NULL;
7124
7125 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
7126 {
7127     QEMUBH *bh;
7128     bh = qemu_mallocz(sizeof(QEMUBH));
7129     if (!bh)
7130         return NULL;
7131     bh->cb = cb;
7132     bh->opaque = opaque;
7133     return bh;
7134 }
7135
7136 int qemu_bh_poll(void)
7137 {
7138     QEMUBH *bh, **pbh;
7139     int ret;
7140
7141     ret = 0;
7142     for(;;) {
7143         pbh = &first_bh;
7144         bh = *pbh;
7145         if (!bh)
7146             break;
7147         ret = 1;
7148         *pbh = bh->next;
7149         bh->scheduled = 0;
7150         bh->cb(bh->opaque);
7151     }
7152     return ret;
7153 }
7154
7155 void qemu_bh_schedule(QEMUBH *bh)
7156 {
7157     CPUState *env = cpu_single_env;
7158     if (bh->scheduled)
7159         return;
7160     bh->scheduled = 1;
7161     bh->next = first_bh;
7162     first_bh = bh;
7163
7164     /* stop the currently executing CPU to execute the BH ASAP */
7165     if (env) {
7166         cpu_interrupt(env, CPU_INTERRUPT_EXIT);
7167     }
7168 }
7169
7170 void qemu_bh_cancel(QEMUBH *bh)
7171 {
7172     QEMUBH **pbh;
7173     if (bh->scheduled) {
7174         pbh = &first_bh;
7175         while (*pbh != bh)
7176             pbh = &(*pbh)->next;
7177         *pbh = bh->next;
7178         bh->scheduled = 0;
7179     }
7180 }
7181
7182 void qemu_bh_delete(QEMUBH *bh)
7183 {
7184     qemu_bh_cancel(bh);
7185     qemu_free(bh);
7186 }
7187
7188 /***********************************************************/
7189 /* machine registration */
7190
7191 QEMUMachine *first_machine = NULL;
7192
7193 int qemu_register_machine(QEMUMachine *m)
7194 {
7195     QEMUMachine **pm;
7196     pm = &first_machine;
7197     while (*pm != NULL)
7198         pm = &(*pm)->next;
7199     m->next = NULL;
7200     *pm = m;
7201     return 0;
7202 }
7203
7204 static QEMUMachine *find_machine(const char *name)
7205 {
7206     QEMUMachine *m;
7207
7208     for(m = first_machine; m != NULL; m = m->next) {
7209         if (!strcmp(m->name, name))
7210             return m;
7211     }
7212     return NULL;
7213 }
7214
7215 /***********************************************************/
7216 /* main execution loop */
7217
7218 static void gui_update(void *opaque)
7219 {
7220     DisplayState *ds = opaque;
7221     ds->dpy_refresh(ds);
7222     qemu_mod_timer(ds->gui_timer,
7223         (ds->gui_timer_interval ?
7224             ds->gui_timer_interval :
7225             GUI_REFRESH_INTERVAL)
7226         + qemu_get_clock(rt_clock));
7227 }
7228
7229 struct vm_change_state_entry {
7230     VMChangeStateHandler *cb;
7231     void *opaque;
7232     LIST_ENTRY (vm_change_state_entry) entries;
7233 };
7234
7235 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
7236
7237 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
7238                                                      void *opaque)
7239 {
7240     VMChangeStateEntry *e;
7241
7242     e = qemu_mallocz(sizeof (*e));
7243     if (!e)
7244         return NULL;
7245
7246     e->cb = cb;
7247     e->opaque = opaque;
7248     LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
7249     return e;
7250 }
7251
7252 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
7253 {
7254     LIST_REMOVE (e, entries);
7255     qemu_free (e);
7256 }
7257
7258 static void vm_state_notify(int running)
7259 {
7260     VMChangeStateEntry *e;
7261
7262     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
7263         e->cb(e->opaque, running);
7264     }
7265 }
7266
7267 /* XXX: support several handlers */
7268 static VMStopHandler *vm_stop_cb;
7269 static void *vm_stop_opaque;
7270
7271 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
7272 {
7273     vm_stop_cb = cb;
7274     vm_stop_opaque = opaque;
7275     return 0;
7276 }
7277
7278 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
7279 {
7280     vm_stop_cb = NULL;
7281 }
7282
7283 void vm_start(void)
7284 {
7285     if (!vm_running) {
7286         cpu_enable_ticks();
7287         vm_running = 1;
7288         vm_state_notify(1);
7289         qemu_rearm_alarm_timer(alarm_timer);
7290     }
7291 }
7292
7293 void vm_stop(int reason)
7294 {
7295     if (vm_running) {
7296         cpu_disable_ticks();
7297         vm_running = 0;
7298         if (reason != 0) {
7299             if (vm_stop_cb) {
7300                 vm_stop_cb(vm_stop_opaque, reason);
7301             }
7302         }
7303         vm_state_notify(0);
7304     }
7305 }
7306
7307 /* reset/shutdown handler */
7308
7309 typedef struct QEMUResetEntry {
7310     QEMUResetHandler *func;
7311     void *opaque;
7312     struct QEMUResetEntry *next;
7313 } QEMUResetEntry;
7314
7315 static QEMUResetEntry *first_reset_entry;
7316 static int reset_requested;
7317 static int shutdown_requested;
7318 static int powerdown_requested;
7319
7320 int qemu_shutdown_requested(void)
7321 {
7322     int r = shutdown_requested;
7323     shutdown_requested = 0;
7324     return r;
7325 }
7326
7327 int qemu_reset_requested(void)
7328 {
7329     int r = reset_requested;
7330     reset_requested = 0;
7331     return r;
7332 }
7333
7334 int qemu_powerdown_requested(void)
7335 {
7336     int r = powerdown_requested;
7337     powerdown_requested = 0;
7338     return r;
7339 }
7340
7341 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
7342 {
7343     QEMUResetEntry **pre, *re;
7344
7345     pre = &first_reset_entry;
7346     while (*pre != NULL)
7347         pre = &(*pre)->next;
7348     re = qemu_mallocz(sizeof(QEMUResetEntry));
7349     re->func = func;
7350     re->opaque = opaque;
7351     re->next = NULL;
7352     *pre = re;
7353 }
7354
7355 void qemu_system_reset(void)
7356 {
7357     QEMUResetEntry *re;
7358
7359     /* reset all devices */
7360     for(re = first_reset_entry; re != NULL; re = re->next) {
7361         re->func(re->opaque);
7362     }
7363 }
7364
7365 void qemu_system_reset_request(void)
7366 {
7367     if (no_reboot) {
7368         shutdown_requested = 1;
7369     } else {
7370         reset_requested = 1;
7371     }
7372     if (cpu_single_env)
7373         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7374 }
7375
7376 void qemu_system_shutdown_request(void)
7377 {
7378     shutdown_requested = 1;
7379     if (cpu_single_env)
7380         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7381 }
7382
7383 void qemu_system_powerdown_request(void)
7384 {
7385     powerdown_requested = 1;
7386     if (cpu_single_env)
7387         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7388 }
7389
7390 void main_loop_wait(int timeout)
7391 {
7392     IOHandlerRecord *ioh;
7393     fd_set rfds, wfds, xfds;
7394     int ret, nfds;
7395 #ifdef _WIN32
7396     int ret2, i;
7397 #endif
7398     struct timeval tv;
7399     PollingEntry *pe;
7400
7401
7402     /* XXX: need to suppress polling by better using win32 events */
7403     ret = 0;
7404     for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
7405         ret |= pe->func(pe->opaque);
7406     }
7407 #ifdef _WIN32
7408     if (ret == 0) {
7409         int err;
7410         WaitObjects *w = &wait_objects;
7411
7412         ret = WaitForMultipleObjects(w->num, w->events, FALSE, timeout);
7413         if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
7414             if (w->func[ret - WAIT_OBJECT_0])
7415                 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
7416
7417             /* Check for additional signaled events */
7418             for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
7419
7420                 /* Check if event is signaled */
7421                 ret2 = WaitForSingleObject(w->events[i], 0);
7422                 if(ret2 == WAIT_OBJECT_0) {
7423                     if (w->func[i])
7424                         w->func[i](w->opaque[i]);
7425                 } else if (ret2 == WAIT_TIMEOUT) {
7426                 } else {
7427                     err = GetLastError();
7428                     fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
7429                 }
7430             }
7431         } else if (ret == WAIT_TIMEOUT) {
7432         } else {
7433             err = GetLastError();
7434             fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
7435         }
7436     }
7437 #endif
7438     /* poll any events */
7439     /* XXX: separate device handlers from system ones */
7440     nfds = -1;
7441     FD_ZERO(&rfds);
7442     FD_ZERO(&wfds);
7443     FD_ZERO(&xfds);
7444     for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
7445         if (ioh->deleted)
7446             continue;
7447         if (ioh->fd_read &&
7448             (!ioh->fd_read_poll ||
7449              ioh->fd_read_poll(ioh->opaque) != 0)) {
7450             FD_SET(ioh->fd, &rfds);
7451             if (ioh->fd > nfds)
7452                 nfds = ioh->fd;
7453         }
7454         if (ioh->fd_write) {
7455             FD_SET(ioh->fd, &wfds);
7456             if (ioh->fd > nfds)
7457                 nfds = ioh->fd;
7458         }
7459     }
7460
7461     tv.tv_sec = 0;
7462 #ifdef _WIN32
7463     tv.tv_usec = 0;
7464 #else
7465     tv.tv_usec = timeout * 1000;
7466 #endif
7467 #if defined(CONFIG_SLIRP)
7468     if (slirp_inited) {
7469         slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
7470     }
7471 #endif
7472     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
7473     if (ret > 0) {
7474         IOHandlerRecord **pioh;
7475
7476         for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
7477             if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
7478                 ioh->fd_read(ioh->opaque);
7479             }
7480             if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
7481                 ioh->fd_write(ioh->opaque);
7482             }
7483         }
7484
7485         /* remove deleted IO handlers */
7486         pioh = &first_io_handler;
7487         while (*pioh) {
7488             ioh = *pioh;
7489             if (ioh->deleted) {
7490                 *pioh = ioh->next;
7491                 qemu_free(ioh);
7492             } else
7493                 pioh = &ioh->next;
7494         }
7495     }
7496 #if defined(CONFIG_SLIRP)
7497     if (slirp_inited) {
7498         if (ret < 0) {
7499             FD_ZERO(&rfds);
7500             FD_ZERO(&wfds);
7501             FD_ZERO(&xfds);
7502         }
7503         slirp_select_poll(&rfds, &wfds, &xfds);
7504     }
7505 #endif
7506     qemu_aio_poll();
7507
7508     if (vm_running) {
7509         qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
7510                         qemu_get_clock(vm_clock));
7511         /* run dma transfers, if any */
7512         DMA_run();
7513     }
7514
7515     /* real time timers */
7516     qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
7517                     qemu_get_clock(rt_clock));
7518
7519     if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
7520         alarm_timer->flags &= ~(ALARM_FLAG_EXPIRED);
7521         qemu_rearm_alarm_timer(alarm_timer);
7522     }
7523
7524     /* Check bottom-halves last in case any of the earlier events triggered
7525        them.  */
7526     qemu_bh_poll();
7527
7528 }
7529
7530 static int main_loop(void)
7531 {
7532     int ret, timeout;
7533 #ifdef CONFIG_PROFILER
7534     int64_t ti;
7535 #endif
7536     CPUState *env;
7537
7538     cur_cpu = first_cpu;
7539     next_cpu = cur_cpu->next_cpu ?: first_cpu;
7540     for(;;) {
7541         if (vm_running) {
7542
7543             for(;;) {
7544                 /* get next cpu */
7545                 env = next_cpu;
7546 #ifdef CONFIG_PROFILER
7547                 ti = profile_getclock();
7548 #endif
7549                 ret = cpu_exec(env);
7550 #ifdef CONFIG_PROFILER
7551                 qemu_time += profile_getclock() - ti;
7552 #endif
7553                 next_cpu = env->next_cpu ?: first_cpu;
7554                 if (event_pending && likely(ret != EXCP_DEBUG)) {
7555                     ret = EXCP_INTERRUPT;
7556                     event_pending = 0;
7557                     break;
7558                 }
7559                 if (ret == EXCP_HLT) {
7560                     /* Give the next CPU a chance to run.  */
7561                     cur_cpu = env;
7562                     continue;
7563                 }
7564                 if (ret != EXCP_HALTED)
7565                     break;
7566                 /* all CPUs are halted ? */
7567                 if (env == cur_cpu)
7568                     break;
7569             }
7570             cur_cpu = env;
7571
7572             if (shutdown_requested) {
7573                 ret = EXCP_INTERRUPT;
7574                 if (no_shutdown) {
7575                     vm_stop(0);
7576                     no_shutdown = 0;
7577                 }
7578                 else
7579                     break;
7580             }
7581             if (reset_requested) {
7582                 reset_requested = 0;
7583                 qemu_system_reset();
7584                 ret = EXCP_INTERRUPT;
7585             }
7586             if (powerdown_requested) {
7587                 powerdown_requested = 0;
7588                 qemu_system_powerdown();
7589                 ret = EXCP_INTERRUPT;
7590             }
7591             if (unlikely(ret == EXCP_DEBUG)) {
7592                 vm_stop(EXCP_DEBUG);
7593             }
7594             /* If all cpus are halted then wait until the next IRQ */
7595             /* XXX: use timeout computed from timers */
7596             if (ret == EXCP_HALTED)
7597                 timeout = 10;
7598             else
7599                 timeout = 0;
7600         } else {
7601             timeout = 10;
7602         }
7603 #ifdef CONFIG_PROFILER
7604         ti = profile_getclock();
7605 #endif
7606         main_loop_wait(timeout);
7607 #ifdef CONFIG_PROFILER
7608         dev_time += profile_getclock() - ti;
7609 #endif
7610     }
7611     cpu_disable_ticks();
7612     return ret;
7613 }
7614
7615 static void help(int exitcode)
7616 {
7617     printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
7618            "usage: %s [options] [disk_image]\n"
7619            "\n"
7620            "'disk_image' is a raw hard image image for IDE hard disk 0\n"
7621            "\n"
7622            "Standard options:\n"
7623            "-M machine      select emulated machine (-M ? for list)\n"
7624            "-cpu cpu        select CPU (-cpu ? for list)\n"
7625            "-fda/-fdb file  use 'file' as floppy disk 0/1 image\n"
7626            "-hda/-hdb file  use 'file' as IDE hard disk 0/1 image\n"
7627            "-hdc/-hdd file  use 'file' as IDE hard disk 2/3 image\n"
7628            "-cdrom file     use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
7629            "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][index=i]\n"
7630            "       [,cyls=c,heads=h,secs=s[,trans=t]][snapshot=on|off]"
7631            "       [,cache=on|off]\n"
7632            "                use 'file' as a drive image\n"
7633            "-mtdblock file  use 'file' as on-board Flash memory image\n"
7634            "-sd file        use 'file' as SecureDigital card image\n"
7635            "-pflash file    use 'file' as a parallel flash image\n"
7636            "-boot [a|c|d|n] boot on floppy (a), hard disk (c), CD-ROM (d), or network (n)\n"
7637            "-snapshot       write to temporary files instead of disk image files\n"
7638 #ifdef CONFIG_SDL
7639            "-no-frame       open SDL window without a frame and window decorations\n"
7640            "-alt-grab       use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n"
7641            "-no-quit        disable SDL window close capability\n"
7642 #endif
7643 #ifdef TARGET_I386
7644            "-no-fd-bootchk  disable boot signature checking for floppy disks\n"
7645 #endif
7646            "-m megs         set virtual RAM size to megs MB [default=%d]\n"
7647            "-smp n          set the number of CPUs to 'n' [default=1]\n"
7648            "-nographic      disable graphical output and redirect serial I/Os to console\n"
7649            "-portrait       rotate graphical output 90 deg left (only PXA LCD)\n"
7650 #ifndef _WIN32
7651            "-k language     use keyboard layout (for example \"fr\" for French)\n"
7652 #endif
7653 #ifdef HAS_AUDIO
7654            "-audio-help     print list of audio drivers and their options\n"
7655            "-soundhw c1,... enable audio support\n"
7656            "                and only specified sound cards (comma separated list)\n"
7657            "                use -soundhw ? to get the list of supported cards\n"
7658            "                use -soundhw all to enable all of them\n"
7659 #endif
7660            "-localtime      set the real time clock to local time [default=utc]\n"
7661            "-full-screen    start in full screen\n"
7662 #ifdef TARGET_I386
7663            "-win2k-hack     use it when installing Windows 2000 to avoid a disk full bug\n"
7664 #endif
7665            "-usb            enable the USB driver (will be the default soon)\n"
7666            "-usbdevice name add the host or guest USB device 'name'\n"
7667 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
7668            "-g WxH[xDEPTH]  Set the initial graphical resolution and depth\n"
7669 #endif
7670            "-name string    set the name of the guest\n"
7671            "\n"
7672            "Network options:\n"
7673            "-net nic[,vlan=n][,macaddr=addr][,model=type]\n"
7674            "                create a new Network Interface Card and connect it to VLAN 'n'\n"
7675 #ifdef CONFIG_SLIRP
7676            "-net user[,vlan=n][,hostname=host]\n"
7677            "                connect the user mode network stack to VLAN 'n' and send\n"
7678            "                hostname 'host' to DHCP clients\n"
7679 #endif
7680 #ifdef _WIN32
7681            "-net tap[,vlan=n],ifname=name\n"
7682            "                connect the host TAP network interface to VLAN 'n'\n"
7683 #else
7684            "-net tap[,vlan=n][,fd=h][,ifname=name][,script=file][,downscript=dfile]\n"
7685            "                connect the host TAP network interface to VLAN 'n' and use the\n"
7686            "                network scripts 'file' (default=%s)\n"
7687            "                and 'dfile' (default=%s);\n"
7688            "                use '[down]script=no' to disable script execution;\n"
7689            "                use 'fd=h' to connect to an already opened TAP interface\n"
7690 #endif
7691            "-net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port]\n"
7692            "                connect the vlan 'n' to another VLAN using a socket connection\n"
7693            "-net socket[,vlan=n][,fd=h][,mcast=maddr:port]\n"
7694            "                connect the vlan 'n' to multicast maddr and port\n"
7695            "-net none       use it alone to have zero network devices; if no -net option\n"
7696            "                is provided, the default is '-net nic -net user'\n"
7697            "\n"
7698 #ifdef CONFIG_SLIRP
7699            "-tftp dir       allow tftp access to files in dir [-net user]\n"
7700            "-bootp file     advertise file in BOOTP replies\n"
7701 #ifndef _WIN32
7702            "-smb dir        allow SMB access to files in 'dir' [-net user]\n"
7703 #endif
7704            "-redir [tcp|udp]:host-port:[guest-host]:guest-port\n"
7705            "                redirect TCP or UDP connections from host to guest [-net user]\n"
7706 #endif
7707            "\n"
7708            "Linux boot specific:\n"
7709            "-kernel bzImage use 'bzImage' as kernel image\n"
7710            "-append cmdline use 'cmdline' as kernel command line\n"
7711            "-initrd file    use 'file' as initial ram disk\n"
7712            "\n"
7713            "Debug/Expert options:\n"
7714            "-monitor dev    redirect the monitor to char device 'dev'\n"
7715            "-serial dev     redirect the serial port to char device 'dev'\n"
7716            "-parallel dev   redirect the parallel port to char device 'dev'\n"
7717            "-pidfile file   Write PID to 'file'\n"
7718            "-S              freeze CPU at startup (use 'c' to start execution)\n"
7719            "-s              wait gdb connection to port\n"
7720            "-p port         set gdb connection port [default=%s]\n"
7721            "-d item1,...    output log to %s (use -d ? for a list of log items)\n"
7722            "-hdachs c,h,s[,t]  force hard disk 0 physical geometry and the optional BIOS\n"
7723            "                translation (t=none or lba) (usually qemu can guess them)\n"
7724            "-L path         set the directory for the BIOS, VGA BIOS and keymaps\n"
7725 #ifdef USE_KQEMU
7726            "-kernel-kqemu   enable KQEMU full virtualization (default is user mode only)\n"
7727            "-no-kqemu       disable KQEMU kernel module usage\n"
7728 #endif
7729 #ifdef TARGET_I386
7730            "-std-vga        simulate a standard VGA card with VESA Bochs Extensions\n"
7731            "                (default is CL-GD5446 PCI VGA)\n"
7732            "-no-acpi        disable ACPI\n"
7733 #endif
7734 #ifdef CONFIG_CURSES
7735            "-curses         use a curses/ncurses interface instead of SDL\n"
7736 #endif
7737            "-no-reboot      exit instead of rebooting\n"
7738            "-no-shutdown    stop before shutdown\n"
7739            "-loadvm file    start right away with a saved state (loadvm in monitor)\n"
7740            "-vnc display    start a VNC server on display\n"
7741 #ifndef _WIN32
7742            "-daemonize      daemonize QEMU after initializing\n"
7743 #endif
7744            "-option-rom rom load a file, rom, into the option ROM space\n"
7745 #ifdef TARGET_SPARC
7746            "-prom-env variable=value  set OpenBIOS nvram variables\n"
7747 #endif
7748            "-clock          force the use of the given methods for timer alarm.\n"
7749            "                To see what timers are available use -clock ?\n"
7750            "-startdate      select initial date of the clock\n"
7751            "\n"
7752            "During emulation, the following keys are useful:\n"
7753            "ctrl-alt-f      toggle full screen\n"
7754            "ctrl-alt-n      switch to virtual console 'n'\n"
7755            "ctrl-alt        toggle mouse and keyboard grab\n"
7756            "\n"
7757            "When using -nographic, press 'ctrl-a h' to get some help.\n"
7758            ,
7759            "qemu",
7760            DEFAULT_RAM_SIZE,
7761 #ifndef _WIN32
7762            DEFAULT_NETWORK_SCRIPT,
7763            DEFAULT_NETWORK_DOWN_SCRIPT,
7764 #endif
7765            DEFAULT_GDBSTUB_PORT,
7766            "/tmp/qemu.log");
7767     exit(exitcode);
7768 }
7769
7770 #define HAS_ARG 0x0001
7771
7772 enum {
7773     QEMU_OPTION_h,
7774
7775     QEMU_OPTION_M,
7776     QEMU_OPTION_cpu,
7777     QEMU_OPTION_fda,
7778     QEMU_OPTION_fdb,
7779     QEMU_OPTION_hda,
7780     QEMU_OPTION_hdb,
7781     QEMU_OPTION_hdc,
7782     QEMU_OPTION_hdd,
7783     QEMU_OPTION_drive,
7784     QEMU_OPTION_cdrom,
7785     QEMU_OPTION_mtdblock,
7786     QEMU_OPTION_sd,
7787     QEMU_OPTION_pflash,
7788     QEMU_OPTION_boot,
7789     QEMU_OPTION_snapshot,
7790 #ifdef TARGET_I386
7791     QEMU_OPTION_no_fd_bootchk,
7792 #endif
7793     QEMU_OPTION_m,
7794     QEMU_OPTION_nographic,
7795     QEMU_OPTION_portrait,
7796 #ifdef HAS_AUDIO
7797     QEMU_OPTION_audio_help,
7798     QEMU_OPTION_soundhw,
7799 #endif
7800
7801     QEMU_OPTION_net,
7802     QEMU_OPTION_tftp,
7803     QEMU_OPTION_bootp,
7804     QEMU_OPTION_smb,
7805     QEMU_OPTION_redir,
7806
7807     QEMU_OPTION_kernel,
7808     QEMU_OPTION_append,
7809     QEMU_OPTION_initrd,
7810
7811     QEMU_OPTION_S,
7812     QEMU_OPTION_s,
7813     QEMU_OPTION_p,
7814     QEMU_OPTION_d,
7815     QEMU_OPTION_hdachs,
7816     QEMU_OPTION_L,
7817     QEMU_OPTION_bios,
7818     QEMU_OPTION_no_code_copy,
7819     QEMU_OPTION_k,
7820     QEMU_OPTION_localtime,
7821     QEMU_OPTION_cirrusvga,
7822     QEMU_OPTION_vmsvga,
7823     QEMU_OPTION_g,
7824     QEMU_OPTION_std_vga,
7825     QEMU_OPTION_echr,
7826     QEMU_OPTION_monitor,
7827     QEMU_OPTION_serial,
7828     QEMU_OPTION_parallel,
7829     QEMU_OPTION_loadvm,
7830     QEMU_OPTION_full_screen,
7831     QEMU_OPTION_no_frame,
7832     QEMU_OPTION_alt_grab,
7833     QEMU_OPTION_no_quit,
7834     QEMU_OPTION_pidfile,
7835     QEMU_OPTION_no_kqemu,
7836     QEMU_OPTION_kernel_kqemu,
7837     QEMU_OPTION_win2k_hack,
7838     QEMU_OPTION_usb,
7839     QEMU_OPTION_usbdevice,
7840     QEMU_OPTION_smp,
7841     QEMU_OPTION_vnc,
7842     QEMU_OPTION_no_acpi,
7843     QEMU_OPTION_curses,
7844     QEMU_OPTION_no_reboot,
7845     QEMU_OPTION_no_shutdown,
7846     QEMU_OPTION_show_cursor,
7847     QEMU_OPTION_daemonize,
7848     QEMU_OPTION_option_rom,
7849     QEMU_OPTION_semihosting,
7850     QEMU_OPTION_name,
7851     QEMU_OPTION_prom_env,
7852     QEMU_OPTION_old_param,
7853     QEMU_OPTION_clock,
7854     QEMU_OPTION_startdate,
7855 };
7856
7857 typedef struct QEMUOption {
7858     const char *name;
7859     int flags;
7860     int index;
7861 } QEMUOption;
7862
7863 const QEMUOption qemu_options[] = {
7864     { "h", 0, QEMU_OPTION_h },
7865     { "help", 0, QEMU_OPTION_h },
7866
7867     { "M", HAS_ARG, QEMU_OPTION_M },
7868     { "cpu", HAS_ARG, QEMU_OPTION_cpu },
7869     { "fda", HAS_ARG, QEMU_OPTION_fda },
7870     { "fdb", HAS_ARG, QEMU_OPTION_fdb },
7871     { "hda", HAS_ARG, QEMU_OPTION_hda },
7872     { "hdb", HAS_ARG, QEMU_OPTION_hdb },
7873     { "hdc", HAS_ARG, QEMU_OPTION_hdc },
7874     { "hdd", HAS_ARG, QEMU_OPTION_hdd },
7875     { "drive", HAS_ARG, QEMU_OPTION_drive },
7876     { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
7877     { "mtdblock", HAS_ARG, QEMU_OPTION_mtdblock },
7878     { "sd", HAS_ARG, QEMU_OPTION_sd },
7879     { "pflash", HAS_ARG, QEMU_OPTION_pflash },
7880     { "boot", HAS_ARG, QEMU_OPTION_boot },
7881     { "snapshot", 0, QEMU_OPTION_snapshot },
7882 #ifdef TARGET_I386
7883     { "no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk },
7884 #endif
7885     { "m", HAS_ARG, QEMU_OPTION_m },
7886     { "nographic", 0, QEMU_OPTION_nographic },
7887     { "portrait", 0, QEMU_OPTION_portrait },
7888     { "k", HAS_ARG, QEMU_OPTION_k },
7889 #ifdef HAS_AUDIO
7890     { "audio-help", 0, QEMU_OPTION_audio_help },
7891     { "soundhw", HAS_ARG, QEMU_OPTION_soundhw },
7892 #endif
7893
7894     { "net", HAS_ARG, QEMU_OPTION_net},
7895 #ifdef CONFIG_SLIRP
7896     { "tftp", HAS_ARG, QEMU_OPTION_tftp },
7897     { "bootp", HAS_ARG, QEMU_OPTION_bootp },
7898 #ifndef _WIN32
7899     { "smb", HAS_ARG, QEMU_OPTION_smb },
7900 #endif
7901     { "redir", HAS_ARG, QEMU_OPTION_redir },
7902 #endif
7903
7904     { "kernel", HAS_ARG, QEMU_OPTION_kernel },
7905     { "append", HAS_ARG, QEMU_OPTION_append },
7906     { "initrd", HAS_ARG, QEMU_OPTION_initrd },
7907
7908     { "S", 0, QEMU_OPTION_S },
7909     { "s", 0, QEMU_OPTION_s },
7910     { "p", HAS_ARG, QEMU_OPTION_p },
7911     { "d", HAS_ARG, QEMU_OPTION_d },
7912     { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
7913     { "L", HAS_ARG, QEMU_OPTION_L },
7914     { "bios", HAS_ARG, QEMU_OPTION_bios },
7915     { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
7916 #ifdef USE_KQEMU
7917     { "no-kqemu", 0, QEMU_OPTION_no_kqemu },
7918     { "kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu },
7919 #endif
7920 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
7921     { "g", 1, QEMU_OPTION_g },
7922 #endif
7923     { "localtime", 0, QEMU_OPTION_localtime },
7924     { "std-vga", 0, QEMU_OPTION_std_vga },
7925     { "echr", HAS_ARG, QEMU_OPTION_echr },
7926     { "monitor", HAS_ARG, QEMU_OPTION_monitor },
7927     { "serial", HAS_ARG, QEMU_OPTION_serial },
7928     { "parallel", HAS_ARG, QEMU_OPTION_parallel },
7929     { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
7930     { "full-screen", 0, QEMU_OPTION_full_screen },
7931 #ifdef CONFIG_SDL
7932     { "no-frame", 0, QEMU_OPTION_no_frame },
7933     { "alt-grab", 0, QEMU_OPTION_alt_grab },
7934     { "no-quit", 0, QEMU_OPTION_no_quit },
7935 #endif
7936     { "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
7937     { "win2k-hack", 0, QEMU_OPTION_win2k_hack },
7938     { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice },
7939     { "smp", HAS_ARG, QEMU_OPTION_smp },
7940     { "vnc", HAS_ARG, QEMU_OPTION_vnc },
7941 #ifdef CONFIG_CURSES
7942     { "curses", 0, QEMU_OPTION_curses },
7943 #endif
7944
7945     /* temporary options */
7946     { "usb", 0, QEMU_OPTION_usb },
7947     { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
7948     { "vmwarevga", 0, QEMU_OPTION_vmsvga },
7949     { "no-acpi", 0, QEMU_OPTION_no_acpi },
7950     { "no-reboot", 0, QEMU_OPTION_no_reboot },
7951     { "no-shutdown", 0, QEMU_OPTION_no_shutdown },
7952     { "show-cursor", 0, QEMU_OPTION_show_cursor },
7953     { "daemonize", 0, QEMU_OPTION_daemonize },
7954     { "option-rom", HAS_ARG, QEMU_OPTION_option_rom },
7955 #if defined(TARGET_ARM) || defined(TARGET_M68K)
7956     { "semihosting", 0, QEMU_OPTION_semihosting },
7957 #endif
7958     { "name", HAS_ARG, QEMU_OPTION_name },
7959 #if defined(TARGET_SPARC)
7960     { "prom-env", HAS_ARG, QEMU_OPTION_prom_env },
7961 #endif
7962 #if defined(TARGET_ARM)
7963     { "old-param", 0, QEMU_OPTION_old_param },
7964 #endif
7965     { "clock", HAS_ARG, QEMU_OPTION_clock },
7966     { "startdate", HAS_ARG, QEMU_OPTION_startdate },
7967     { NULL },
7968 };
7969
7970 /* password input */
7971
7972 int qemu_key_check(BlockDriverState *bs, const char *name)
7973 {
7974     char password[256];
7975     int i;
7976
7977     if (!bdrv_is_encrypted(bs))
7978         return 0;
7979
7980     term_printf("%s is encrypted.\n", name);
7981     for(i = 0; i < 3; i++) {
7982         monitor_readline("Password: ", 1, password, sizeof(password));
7983         if (bdrv_set_key(bs, password) == 0)
7984             return 0;
7985         term_printf("invalid password\n");
7986     }
7987     return -EPERM;
7988 }
7989
7990 static BlockDriverState *get_bdrv(int index)
7991 {
7992     if (index > nb_drives)
7993         return NULL;
7994     return drives_table[index].bdrv;
7995 }
7996
7997 static void read_passwords(void)
7998 {
7999     BlockDriverState *bs;
8000     int i;
8001
8002     for(i = 0; i < 6; i++) {
8003         bs = get_bdrv(i);
8004         if (bs)
8005             qemu_key_check(bs, bdrv_get_device_name(bs));
8006     }
8007 }
8008
8009 /* XXX: currently we cannot use simultaneously different CPUs */
8010 static void register_machines(void)
8011 {
8012 #if defined(TARGET_I386)
8013     qemu_register_machine(&pc_machine);
8014     qemu_register_machine(&isapc_machine);
8015 #elif defined(TARGET_PPC)
8016     qemu_register_machine(&heathrow_machine);
8017     qemu_register_machine(&core99_machine);
8018     qemu_register_machine(&prep_machine);
8019     qemu_register_machine(&ref405ep_machine);
8020     qemu_register_machine(&taihu_machine);
8021 #elif defined(TARGET_MIPS)
8022     qemu_register_machine(&mips_machine);
8023     qemu_register_machine(&mips_magnum_machine);
8024     qemu_register_machine(&mips_malta_machine);
8025     qemu_register_machine(&mips_pica61_machine);
8026     qemu_register_machine(&mips_mipssim_machine);
8027 #elif defined(TARGET_SPARC)
8028 #ifdef TARGET_SPARC64
8029     qemu_register_machine(&sun4u_machine);
8030 #else
8031     qemu_register_machine(&ss5_machine);
8032     qemu_register_machine(&ss10_machine);
8033     qemu_register_machine(&ss600mp_machine);
8034     qemu_register_machine(&ss20_machine);
8035     qemu_register_machine(&ss2_machine);
8036     qemu_register_machine(&voyager_machine);
8037     qemu_register_machine(&ss_lx_machine);
8038     qemu_register_machine(&ss4_machine);
8039     qemu_register_machine(&scls_machine);
8040     qemu_register_machine(&sbook_machine);
8041     qemu_register_machine(&ss1000_machine);
8042     qemu_register_machine(&ss2000_machine);
8043 #endif
8044 #elif defined(TARGET_ARM)
8045     qemu_register_machine(&integratorcp_machine);
8046     qemu_register_machine(&versatilepb_machine);
8047     qemu_register_machine(&versatileab_machine);
8048     qemu_register_machine(&realview_machine);
8049     qemu_register_machine(&akitapda_machine);
8050     qemu_register_machine(&spitzpda_machine);
8051     qemu_register_machine(&borzoipda_machine);
8052     qemu_register_machine(&terrierpda_machine);
8053     qemu_register_machine(&palmte_machine);
8054     qemu_register_machine(&n800_machine);
8055     qemu_register_machine(&lm3s811evb_machine);
8056     qemu_register_machine(&lm3s6965evb_machine);
8057     qemu_register_machine(&connex_machine);
8058     qemu_register_machine(&verdex_machine);
8059     qemu_register_machine(&mainstone2_machine);
8060     qemu_register_machine(&musicpal_machine);
8061 #elif defined(TARGET_SH4)
8062     qemu_register_machine(&shix_machine);
8063     qemu_register_machine(&r2d_machine);
8064 #elif defined(TARGET_ALPHA)
8065     /* XXX: TODO */
8066 #elif defined(TARGET_M68K)
8067     qemu_register_machine(&mcf5208evb_machine);
8068     qemu_register_machine(&an5206_machine);
8069     qemu_register_machine(&dummy_m68k_machine);
8070 #elif defined(TARGET_CRIS)
8071     qemu_register_machine(&bareetraxfs_machine);
8072 #else
8073 #error unsupported CPU
8074 #endif
8075 }
8076
8077 #ifdef HAS_AUDIO
8078 struct soundhw soundhw[] = {
8079 #ifdef HAS_AUDIO_CHOICE
8080 #if defined(TARGET_I386) || defined(TARGET_MIPS)
8081     {
8082         "pcspk",
8083         "PC speaker",
8084         0,
8085         1,
8086         { .init_isa = pcspk_audio_init }
8087     },
8088 #endif
8089     {
8090         "sb16",
8091         "Creative Sound Blaster 16",
8092         0,
8093         1,
8094         { .init_isa = SB16_init }
8095     },
8096
8097 #ifdef CONFIG_ADLIB
8098     {
8099         "adlib",
8100 #ifdef HAS_YMF262
8101         "Yamaha YMF262 (OPL3)",
8102 #else
8103         "Yamaha YM3812 (OPL2)",
8104 #endif
8105         0,
8106         1,
8107         { .init_isa = Adlib_init }
8108     },
8109 #endif
8110
8111 #ifdef CONFIG_GUS
8112     {
8113         "gus",
8114         "Gravis Ultrasound GF1",
8115         0,
8116         1,
8117         { .init_isa = GUS_init }
8118     },
8119 #endif
8120
8121 #ifdef CONFIG_AC97
8122     {
8123         "ac97",
8124         "Intel 82801AA AC97 Audio",
8125         0,
8126         0,
8127         { .init_pci = ac97_init }
8128     },
8129 #endif
8130
8131     {
8132         "es1370",
8133         "ENSONIQ AudioPCI ES1370",
8134         0,
8135         0,
8136         { .init_pci = es1370_init }
8137     },
8138 #endif
8139
8140     { NULL, NULL, 0, 0, { NULL } }
8141 };
8142
8143 static void select_soundhw (const char *optarg)
8144 {
8145     struct soundhw *c;
8146
8147     if (*optarg == '?') {
8148     show_valid_cards:
8149
8150         printf ("Valid sound card names (comma separated):\n");
8151         for (c = soundhw; c->name; ++c) {
8152             printf ("%-11s %s\n", c->name, c->descr);
8153         }
8154         printf ("\n-soundhw all will enable all of the above\n");
8155         exit (*optarg != '?');
8156     }
8157     else {
8158         size_t l;
8159         const char *p;
8160         char *e;
8161         int bad_card = 0;
8162
8163         if (!strcmp (optarg, "all")) {
8164             for (c = soundhw; c->name; ++c) {
8165                 c->enabled = 1;
8166             }
8167             return;
8168         }
8169
8170         p = optarg;
8171         while (*p) {
8172             e = strchr (p, ',');
8173             l = !e ? strlen (p) : (size_t) (e - p);
8174
8175             for (c = soundhw; c->name; ++c) {
8176                 if (!strncmp (c->name, p, l)) {
8177                     c->enabled = 1;
8178                     break;
8179                 }
8180             }
8181
8182             if (!c->name) {
8183                 if (l > 80) {
8184                     fprintf (stderr,
8185                              "Unknown sound card name (too big to show)\n");
8186                 }
8187                 else {
8188                     fprintf (stderr, "Unknown sound card name `%.*s'\n",
8189                              (int) l, p);
8190                 }
8191                 bad_card = 1;
8192             }
8193             p += l + (e != NULL);
8194         }
8195
8196         if (bad_card)
8197             goto show_valid_cards;
8198     }
8199 }
8200 #endif
8201
8202 #ifdef _WIN32
8203 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
8204 {
8205     exit(STATUS_CONTROL_C_EXIT);
8206     return TRUE;
8207 }
8208 #endif
8209
8210 #define MAX_NET_CLIENTS 32
8211
8212 int main(int argc, char **argv)
8213 {
8214 #ifdef CONFIG_GDBSTUB
8215     int use_gdbstub;
8216     const char *gdbstub_port;
8217 #endif
8218     uint32_t boot_devices_bitmap = 0;
8219     int i;
8220     int snapshot, linux_boot, net_boot;
8221     const char *initrd_filename;
8222     const char *kernel_filename, *kernel_cmdline;
8223     const char *boot_devices = "";
8224     DisplayState *ds = &display_state;
8225     int cyls, heads, secs, translation;
8226     const char *net_clients[MAX_NET_CLIENTS];
8227     int nb_net_clients;
8228     int hda_index;
8229     int optind;
8230     const char *r, *optarg;
8231     CharDriverState *monitor_hd;
8232     const char *monitor_device;
8233     const char *serial_devices[MAX_SERIAL_PORTS];
8234     int serial_device_index;
8235     const char *parallel_devices[MAX_PARALLEL_PORTS];
8236     int parallel_device_index;
8237     const char *loadvm = NULL;
8238     QEMUMachine *machine;
8239     const char *cpu_model;
8240     const char *usb_devices[MAX_USB_CMDLINE];
8241     int usb_devices_index;
8242     int fds[2];
8243     const char *pid_file = NULL;
8244     VLANState *vlan;
8245
8246     LIST_INIT (&vm_change_state_head);
8247 #ifndef _WIN32
8248     {
8249         struct sigaction act;
8250         sigfillset(&act.sa_mask);
8251         act.sa_flags = 0;
8252         act.sa_handler = SIG_IGN;
8253         sigaction(SIGPIPE, &act, NULL);
8254     }
8255 #else
8256     SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
8257     /* Note: cpu_interrupt() is currently not SMP safe, so we force
8258        QEMU to run on a single CPU */
8259     {
8260         HANDLE h;
8261         DWORD mask, smask;
8262         int i;
8263         h = GetCurrentProcess();
8264         if (GetProcessAffinityMask(h, &mask, &smask)) {
8265             for(i = 0; i < 32; i++) {
8266                 if (mask & (1 << i))
8267                     break;
8268             }
8269             if (i != 32) {
8270                 mask = 1 << i;
8271                 SetProcessAffinityMask(h, mask);
8272             }
8273         }
8274     }
8275 #endif
8276
8277     register_machines();
8278     machine = first_machine;
8279     cpu_model = NULL;
8280     initrd_filename = NULL;
8281     ram_size = -1;
8282     vga_ram_size = VGA_RAM_SIZE;
8283 #ifdef CONFIG_GDBSTUB
8284     use_gdbstub = 0;
8285     gdbstub_port = DEFAULT_GDBSTUB_PORT;
8286 #endif
8287     snapshot = 0;
8288     nographic = 0;
8289     curses = 0;
8290     kernel_filename = NULL;
8291     kernel_cmdline = "";
8292     cyls = heads = secs = 0;
8293     translation = BIOS_ATA_TRANSLATION_AUTO;
8294     monitor_device = "vc";
8295
8296     serial_devices[0] = "vc";
8297     for(i = 1; i < MAX_SERIAL_PORTS; i++)
8298         serial_devices[i] = NULL;
8299     serial_device_index = 0;
8300
8301     parallel_devices[0] = "vc";
8302     for(i = 1; i < MAX_PARALLEL_PORTS; i++)
8303         parallel_devices[i] = NULL;
8304     parallel_device_index = 0;
8305
8306     usb_devices_index = 0;
8307
8308     nb_net_clients = 0;
8309     nb_drives = 0;
8310     nb_drives_opt = 0;
8311     hda_index = -1;
8312
8313     nb_nics = 0;
8314     /* default mac address of the first network interface */
8315
8316     optind = 1;
8317     for(;;) {
8318         if (optind >= argc)
8319             break;
8320         r = argv[optind];
8321         if (r[0] != '-') {
8322             hda_index = drive_add(argv[optind++], HD_ALIAS, 0);
8323         } else {
8324             const QEMUOption *popt;
8325
8326             optind++;
8327             /* Treat --foo the same as -foo.  */
8328             if (r[1] == '-')
8329                 r++;
8330             popt = qemu_options;
8331             for(;;) {
8332                 if (!popt->name) {
8333                     fprintf(stderr, "%s: invalid option -- '%s'\n",
8334                             argv[0], r);
8335                     exit(1);
8336                 }
8337                 if (!strcmp(popt->name, r + 1))
8338                     break;
8339                 popt++;
8340             }
8341             if (popt->flags & HAS_ARG) {
8342                 if (optind >= argc) {
8343                     fprintf(stderr, "%s: option '%s' requires an argument\n",
8344                             argv[0], r);
8345                     exit(1);
8346                 }
8347                 optarg = argv[optind++];
8348             } else {
8349                 optarg = NULL;
8350             }
8351
8352             switch(popt->index) {
8353             case QEMU_OPTION_M:
8354                 machine = find_machine(optarg);
8355                 if (!machine) {
8356                     QEMUMachine *m;
8357                     printf("Supported machines are:\n");
8358                     for(m = first_machine; m != NULL; m = m->next) {
8359                         printf("%-10s %s%s\n",
8360                                m->name, m->desc,
8361                                m == first_machine ? " (default)" : "");
8362                     }
8363                     exit(*optarg != '?');
8364                 }
8365                 break;
8366             case QEMU_OPTION_cpu:
8367                 /* hw initialization will check this */
8368                 if (*optarg == '?') {
8369 /* XXX: implement xxx_cpu_list for targets that still miss it */
8370 #if defined(cpu_list)
8371                     cpu_list(stdout, &fprintf);
8372 #endif
8373                     exit(0);
8374                 } else {
8375                     cpu_model = optarg;
8376                 }
8377                 break;
8378             case QEMU_OPTION_initrd:
8379                 initrd_filename = optarg;
8380                 break;
8381             case QEMU_OPTION_hda:
8382                 if (cyls == 0)
8383                     hda_index = drive_add(optarg, HD_ALIAS, 0);
8384                 else
8385                     hda_index = drive_add(optarg, HD_ALIAS
8386                              ",cyls=%d,heads=%d,secs=%d%s",
8387                              0, cyls, heads, secs,
8388                              translation == BIOS_ATA_TRANSLATION_LBA ?
8389                                  ",trans=lba" :
8390                              translation == BIOS_ATA_TRANSLATION_NONE ?
8391                                  ",trans=none" : "");
8392                  break;
8393             case QEMU_OPTION_hdb:
8394             case QEMU_OPTION_hdc:
8395             case QEMU_OPTION_hdd:
8396                 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
8397                 break;
8398             case QEMU_OPTION_drive:
8399                 drive_add(NULL, "%s", optarg);
8400                 break;
8401             case QEMU_OPTION_mtdblock:
8402                 drive_add(optarg, MTD_ALIAS);
8403                 break;
8404             case QEMU_OPTION_sd:
8405                 drive_add(optarg, SD_ALIAS);
8406                 break;
8407             case QEMU_OPTION_pflash:
8408                 drive_add(optarg, PFLASH_ALIAS);
8409                 break;
8410             case QEMU_OPTION_snapshot:
8411                 snapshot = 1;
8412                 break;
8413             case QEMU_OPTION_hdachs:
8414                 {
8415                     const char *p;
8416                     p = optarg;
8417                     cyls = strtol(p, (char **)&p, 0);
8418                     if (cyls < 1 || cyls > 16383)
8419                         goto chs_fail;
8420                     if (*p != ',')
8421                         goto chs_fail;
8422                     p++;
8423                     heads = strtol(p, (char **)&p, 0);
8424                     if (heads < 1 || heads > 16)
8425                         goto chs_fail;
8426                     if (*p != ',')
8427                         goto chs_fail;
8428                     p++;
8429                     secs = strtol(p, (char **)&p, 0);
8430                     if (secs < 1 || secs > 63)
8431                         goto chs_fail;
8432                     if (*p == ',') {
8433                         p++;
8434                         if (!strcmp(p, "none"))
8435                             translation = BIOS_ATA_TRANSLATION_NONE;
8436                         else if (!strcmp(p, "lba"))
8437                             translation = BIOS_ATA_TRANSLATION_LBA;
8438                         else if (!strcmp(p, "auto"))
8439                             translation = BIOS_ATA_TRANSLATION_AUTO;
8440                         else
8441                             goto chs_fail;
8442                     } else if (*p != '\0') {
8443                     chs_fail:
8444                         fprintf(stderr, "qemu: invalid physical CHS format\n");
8445                         exit(1);
8446                     }
8447                     if (hda_index != -1)
8448                         snprintf(drives_opt[hda_index].opt,
8449                                  sizeof(drives_opt[hda_index].opt),
8450                                  HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s",
8451                                  0, cyls, heads, secs,
8452                                  translation == BIOS_ATA_TRANSLATION_LBA ?
8453                                     ",trans=lba" :
8454                                  translation == BIOS_ATA_TRANSLATION_NONE ?
8455                                      ",trans=none" : "");
8456                 }
8457                 break;
8458             case QEMU_OPTION_nographic:
8459                 serial_devices[0] = "stdio";
8460                 parallel_devices[0] = "null";
8461                 monitor_device = "stdio";
8462                 nographic = 1;
8463                 break;
8464 #ifdef CONFIG_CURSES
8465             case QEMU_OPTION_curses:
8466                 curses = 1;
8467                 break;
8468 #endif
8469             case QEMU_OPTION_portrait:
8470                 graphic_rotate = 1;
8471                 break;
8472             case QEMU_OPTION_kernel:
8473                 kernel_filename = optarg;
8474                 break;
8475             case QEMU_OPTION_append:
8476                 kernel_cmdline = optarg;
8477                 break;
8478             case QEMU_OPTION_cdrom:
8479                 drive_add(optarg, CDROM_ALIAS);
8480                 break;
8481             case QEMU_OPTION_boot:
8482                 boot_devices = optarg;
8483                 /* We just do some generic consistency checks */
8484                 {
8485                     /* Could easily be extended to 64 devices if needed */
8486                     const char *p;
8487
8488                     boot_devices_bitmap = 0;
8489                     for (p = boot_devices; *p != '\0'; p++) {
8490                         /* Allowed boot devices are:
8491                          * a b     : floppy disk drives
8492                          * c ... f : IDE disk drives
8493                          * g ... m : machine implementation dependant drives
8494                          * n ... p : network devices
8495                          * It's up to each machine implementation to check
8496                          * if the given boot devices match the actual hardware
8497                          * implementation and firmware features.
8498                          */
8499                         if (*p < 'a' || *p > 'q') {
8500                             fprintf(stderr, "Invalid boot device '%c'\n", *p);
8501                             exit(1);
8502                         }
8503                         if (boot_devices_bitmap & (1 << (*p - 'a'))) {
8504                             fprintf(stderr,
8505                                     "Boot device '%c' was given twice\n",*p);
8506                             exit(1);
8507                         }
8508                         boot_devices_bitmap |= 1 << (*p - 'a');
8509                     }
8510                 }
8511                 break;
8512             case QEMU_OPTION_fda:
8513             case QEMU_OPTION_fdb:
8514                 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
8515                 break;
8516 #ifdef TARGET_I386
8517             case QEMU_OPTION_no_fd_bootchk:
8518                 fd_bootchk = 0;
8519                 break;
8520 #endif
8521             case QEMU_OPTION_no_code_copy:
8522                 code_copy_enabled = 0;
8523                 break;
8524             case QEMU_OPTION_net:
8525                 if (nb_net_clients >= MAX_NET_CLIENTS) {
8526                     fprintf(stderr, "qemu: too many network clients\n");
8527                     exit(1);
8528                 }
8529                 net_clients[nb_net_clients] = optarg;
8530                 nb_net_clients++;
8531                 break;
8532 #ifdef CONFIG_SLIRP
8533             case QEMU_OPTION_tftp:
8534                 tftp_prefix = optarg;
8535                 break;
8536             case QEMU_OPTION_bootp:
8537                 bootp_filename = optarg;
8538                 break;
8539 #ifndef _WIN32
8540             case QEMU_OPTION_smb:
8541                 net_slirp_smb(optarg);
8542                 break;
8543 #endif
8544             case QEMU_OPTION_redir:
8545                 net_slirp_redir(optarg);
8546                 break;
8547 #endif
8548 #ifdef HAS_AUDIO
8549             case QEMU_OPTION_audio_help:
8550                 AUD_help ();
8551                 exit (0);
8552                 break;
8553             case QEMU_OPTION_soundhw:
8554                 select_soundhw (optarg);
8555                 break;
8556 #endif
8557             case QEMU_OPTION_h:
8558                 help(0);
8559                 break;
8560             case QEMU_OPTION_m:
8561                 ram_size = atoi(optarg) * 1024 * 1024;
8562                 if (ram_size <= 0)
8563                     help(1);
8564                 if (ram_size > PHYS_RAM_MAX_SIZE) {
8565                     fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
8566                             PHYS_RAM_MAX_SIZE / (1024 * 1024));
8567                     exit(1);
8568                 }
8569                 break;
8570             case QEMU_OPTION_d:
8571                 {
8572                     int mask;
8573                     CPULogItem *item;
8574
8575                     mask = cpu_str_to_log_mask(optarg);
8576                     if (!mask) {
8577                         printf("Log items (comma separated):\n");
8578                     for(item = cpu_log_items; item->mask != 0; item++) {
8579                         printf("%-10s %s\n", item->name, item->help);
8580                     }
8581                     exit(1);
8582                     }
8583                     cpu_set_log(mask);
8584                 }
8585                 break;
8586 #ifdef CONFIG_GDBSTUB
8587             case QEMU_OPTION_s:
8588                 use_gdbstub = 1;
8589                 break;
8590             case QEMU_OPTION_p:
8591                 gdbstub_port = optarg;
8592                 break;
8593 #endif
8594             case QEMU_OPTION_L:
8595                 bios_dir = optarg;
8596                 break;
8597             case QEMU_OPTION_bios:
8598                 bios_name = optarg;
8599                 break;
8600             case QEMU_OPTION_S:
8601                 autostart = 0;
8602                 break;
8603             case QEMU_OPTION_k:
8604                 keyboard_layout = optarg;
8605                 break;
8606             case QEMU_OPTION_localtime:
8607                 rtc_utc = 0;
8608                 break;
8609             case QEMU_OPTION_cirrusvga:
8610                 cirrus_vga_enabled = 1;
8611                 vmsvga_enabled = 0;
8612                 break;
8613             case QEMU_OPTION_vmsvga:
8614                 cirrus_vga_enabled = 0;
8615                 vmsvga_enabled = 1;
8616                 break;
8617             case QEMU_OPTION_std_vga:
8618                 cirrus_vga_enabled = 0;
8619                 vmsvga_enabled = 0;
8620                 break;
8621             case QEMU_OPTION_g:
8622                 {
8623                     const char *p;
8624                     int w, h, depth;
8625                     p = optarg;
8626                     w = strtol(p, (char **)&p, 10);
8627                     if (w <= 0) {
8628                     graphic_error:
8629                         fprintf(stderr, "qemu: invalid resolution or depth\n");
8630                         exit(1);
8631                     }
8632                     if (*p != 'x')
8633                         goto graphic_error;
8634                     p++;
8635                     h = strtol(p, (char **)&p, 10);
8636                     if (h <= 0)
8637                         goto graphic_error;
8638                     if (*p == 'x') {
8639                         p++;
8640                         depth = strtol(p, (char **)&p, 10);
8641                         if (depth != 8 && depth != 15 && depth != 16 &&
8642                             depth != 24 && depth != 32)
8643                             goto graphic_error;
8644                     } else if (*p == '\0') {
8645                         depth = graphic_depth;
8646                     } else {
8647                         goto graphic_error;
8648                     }
8649
8650                     graphic_width = w;
8651                     graphic_height = h;
8652                     graphic_depth = depth;
8653                 }
8654                 break;
8655             case QEMU_OPTION_echr:
8656                 {
8657                     char *r;
8658                     term_escape_char = strtol(optarg, &r, 0);
8659                     if (r == optarg)
8660                         printf("Bad argument to echr\n");
8661                     break;
8662                 }
8663             case QEMU_OPTION_monitor:
8664                 monitor_device = optarg;
8665                 break;
8666             case QEMU_OPTION_serial:
8667                 if (serial_device_index >= MAX_SERIAL_PORTS) {
8668                     fprintf(stderr, "qemu: too many serial ports\n");
8669                     exit(1);
8670                 }
8671                 serial_devices[serial_device_index] = optarg;
8672                 serial_device_index++;
8673                 break;
8674             case QEMU_OPTION_parallel:
8675                 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
8676                     fprintf(stderr, "qemu: too many parallel ports\n");
8677                     exit(1);
8678                 }
8679                 parallel_devices[parallel_device_index] = optarg;
8680                 parallel_device_index++;
8681                 break;
8682             case QEMU_OPTION_loadvm:
8683                 loadvm = optarg;
8684                 break;
8685             case QEMU_OPTION_full_screen:
8686                 full_screen = 1;
8687                 break;
8688 #ifdef CONFIG_SDL
8689             case QEMU_OPTION_no_frame:
8690                 no_frame = 1;
8691                 break;
8692             case QEMU_OPTION_alt_grab:
8693                 alt_grab = 1;
8694                 break;
8695             case QEMU_OPTION_no_quit:
8696                 no_quit = 1;
8697                 break;
8698 #endif
8699             case QEMU_OPTION_pidfile:
8700                 pid_file = optarg;
8701                 break;
8702 #ifdef TARGET_I386
8703             case QEMU_OPTION_win2k_hack:
8704                 win2k_install_hack = 1;
8705                 break;
8706 #endif
8707 #ifdef USE_KQEMU
8708             case QEMU_OPTION_no_kqemu:
8709                 kqemu_allowed = 0;
8710                 break;
8711             case QEMU_OPTION_kernel_kqemu:
8712                 kqemu_allowed = 2;
8713                 break;
8714 #endif
8715             case QEMU_OPTION_usb:
8716                 usb_enabled = 1;
8717                 break;
8718             case QEMU_OPTION_usbdevice:
8719                 usb_enabled = 1;
8720                 if (usb_devices_index >= MAX_USB_CMDLINE) {
8721                     fprintf(stderr, "Too many USB devices\n");
8722                     exit(1);
8723                 }
8724                 usb_devices[usb_devices_index] = optarg;
8725                 usb_devices_index++;
8726                 break;
8727             case QEMU_OPTION_smp:
8728                 smp_cpus = atoi(optarg);
8729                 if (smp_cpus < 1 || smp_cpus > MAX_CPUS) {
8730                     fprintf(stderr, "Invalid number of CPUs\n");
8731                     exit(1);
8732                 }
8733                 break;
8734             case QEMU_OPTION_vnc:
8735                 vnc_display = optarg;
8736                 break;
8737             case QEMU_OPTION_no_acpi:
8738                 acpi_enabled = 0;
8739                 break;
8740             case QEMU_OPTION_no_reboot:
8741                 no_reboot = 1;
8742                 break;
8743             case QEMU_OPTION_no_shutdown:
8744                 no_shutdown = 1;
8745                 break;
8746             case QEMU_OPTION_show_cursor:
8747                 cursor_hide = 0;
8748                 break;
8749             case QEMU_OPTION_daemonize:
8750                 daemonize = 1;
8751                 break;
8752             case QEMU_OPTION_option_rom:
8753                 if (nb_option_roms >= MAX_OPTION_ROMS) {
8754                     fprintf(stderr, "Too many option ROMs\n");
8755                     exit(1);
8756                 }
8757                 option_rom[nb_option_roms] = optarg;
8758                 nb_option_roms++;
8759                 break;
8760             case QEMU_OPTION_semihosting:
8761                 semihosting_enabled = 1;
8762                 break;
8763             case QEMU_OPTION_name:
8764                 qemu_name = optarg;
8765                 break;
8766 #ifdef TARGET_SPARC
8767             case QEMU_OPTION_prom_env:
8768                 if (nb_prom_envs >= MAX_PROM_ENVS) {
8769                     fprintf(stderr, "Too many prom variables\n");
8770                     exit(1);
8771                 }
8772                 prom_envs[nb_prom_envs] = optarg;
8773                 nb_prom_envs++;
8774                 break;
8775 #endif
8776 #ifdef TARGET_ARM
8777             case QEMU_OPTION_old_param:
8778                 old_param = 1;
8779                 break;
8780 #endif
8781             case QEMU_OPTION_clock:
8782                 configure_alarms(optarg);
8783                 break;
8784             case QEMU_OPTION_startdate:
8785                 {
8786                     struct tm tm;
8787                     time_t rtc_start_date;
8788                     if (!strcmp(optarg, "now")) {
8789                         rtc_date_offset = -1;
8790                     } else {
8791                         if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
8792                                &tm.tm_year,
8793                                &tm.tm_mon,
8794                                &tm.tm_mday,
8795                                &tm.tm_hour,
8796                                &tm.tm_min,
8797                                &tm.tm_sec) == 6) {
8798                             /* OK */
8799                         } else if (sscanf(optarg, "%d-%d-%d",
8800                                           &tm.tm_year,
8801                                           &tm.tm_mon,
8802                                           &tm.tm_mday) == 3) {
8803                             tm.tm_hour = 0;
8804                             tm.tm_min = 0;
8805                             tm.tm_sec = 0;
8806                         } else {
8807                             goto date_fail;
8808                         }
8809                         tm.tm_year -= 1900;
8810                         tm.tm_mon--;
8811                         rtc_start_date = mktimegm(&tm);
8812                         if (rtc_start_date == -1) {
8813                         date_fail:
8814                             fprintf(stderr, "Invalid date format. Valid format are:\n"
8815                                     "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
8816                             exit(1);
8817                         }
8818                         rtc_date_offset = time(NULL) - rtc_start_date;
8819                     }
8820                 }
8821                 break;
8822             }
8823         }
8824     }
8825
8826 #ifndef _WIN32
8827     if (daemonize && !nographic && vnc_display == NULL) {
8828         fprintf(stderr, "Can only daemonize if using -nographic or -vnc\n");
8829         daemonize = 0;
8830     }
8831
8832     if (daemonize) {
8833         pid_t pid;
8834
8835         if (pipe(fds) == -1)
8836             exit(1);
8837
8838         pid = fork();
8839         if (pid > 0) {
8840             uint8_t status;
8841             ssize_t len;
8842
8843             close(fds[1]);
8844
8845         again:
8846             len = read(fds[0], &status, 1);
8847             if (len == -1 && (errno == EINTR))
8848                 goto again;
8849
8850             if (len != 1)
8851                 exit(1);
8852             else if (status == 1) {
8853                 fprintf(stderr, "Could not acquire pidfile\n");
8854                 exit(1);
8855             } else
8856                 exit(0);
8857         } else if (pid < 0)
8858             exit(1);
8859
8860         setsid();
8861
8862         pid = fork();
8863         if (pid > 0)
8864             exit(0);
8865         else if (pid < 0)
8866             exit(1);
8867
8868         umask(027);
8869         chdir("/");
8870
8871         signal(SIGTSTP, SIG_IGN);
8872         signal(SIGTTOU, SIG_IGN);
8873         signal(SIGTTIN, SIG_IGN);
8874     }
8875 #endif
8876
8877     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
8878         if (daemonize) {
8879             uint8_t status = 1;
8880             write(fds[1], &status, 1);
8881         } else
8882             fprintf(stderr, "Could not acquire pid file\n");
8883         exit(1);
8884     }
8885
8886 #ifdef USE_KQEMU
8887     if (smp_cpus > 1)
8888         kqemu_allowed = 0;
8889 #endif
8890     linux_boot = (kernel_filename != NULL);
8891     net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
8892
8893     /* XXX: this should not be: some embedded targets just have flash */
8894     if (!linux_boot && net_boot == 0 &&
8895         nb_drives_opt == 0)
8896         help(1);
8897
8898     /* boot to floppy or the default cd if no hard disk defined yet */
8899     if (!boot_devices[0]) {
8900         boot_devices = "cad";
8901     }
8902     setvbuf(stdout, NULL, _IOLBF, 0);
8903
8904     init_timers();
8905     init_timer_alarm();
8906     qemu_aio_init();
8907
8908 #ifdef _WIN32
8909     socket_init();
8910 #endif
8911
8912     /* init network clients */
8913     if (nb_net_clients == 0) {
8914         /* if no clients, we use a default config */
8915         net_clients[0] = "nic";
8916         net_clients[1] = "user";
8917         nb_net_clients = 2;
8918     }
8919
8920     for(i = 0;i < nb_net_clients; i++) {
8921         if (net_client_init(net_clients[i]) < 0)
8922             exit(1);
8923     }
8924     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
8925         if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
8926             continue;
8927         if (vlan->nb_guest_devs == 0) {
8928             fprintf(stderr, "Invalid vlan (%d) with no nics\n", vlan->id);
8929             exit(1);
8930         }
8931         if (vlan->nb_host_devs == 0)
8932             fprintf(stderr,
8933                     "Warning: vlan %d is not connected to host network\n",
8934                     vlan->id);
8935     }
8936
8937 #ifdef TARGET_I386
8938     /* XXX: this should be moved in the PC machine instantiation code */
8939     if (net_boot != 0) {
8940         int netroms = 0;
8941         for (i = 0; i < nb_nics && i < 4; i++) {
8942             const char *model = nd_table[i].model;
8943             char buf[1024];
8944             if (net_boot & (1 << i)) {
8945                 if (model == NULL)
8946                     model = "ne2k_pci";
8947                 snprintf(buf, sizeof(buf), "%s/pxe-%s.bin", bios_dir, model);
8948                 if (get_image_size(buf) > 0) {
8949                     if (nb_option_roms >= MAX_OPTION_ROMS) {
8950                         fprintf(stderr, "Too many option ROMs\n");
8951                         exit(1);
8952                     }
8953                     option_rom[nb_option_roms] = strdup(buf);
8954                     nb_option_roms++;
8955                     netroms++;
8956                 }
8957             }
8958         }
8959         if (netroms == 0) {
8960             fprintf(stderr, "No valid PXE rom found for network device\n");
8961             exit(1);
8962         }
8963     }
8964 #endif
8965
8966     /* init the memory */
8967     phys_ram_size = machine->ram_require & ~RAMSIZE_FIXED;
8968
8969     if (machine->ram_require & RAMSIZE_FIXED) {
8970         if (ram_size > 0) {
8971             if (ram_size < phys_ram_size) {
8972                 fprintf(stderr, "Machine `%s' requires %i bytes of memory\n",
8973                                 machine->name, phys_ram_size);
8974                 exit(-1);
8975             }
8976
8977             phys_ram_size = ram_size;
8978         } else
8979             ram_size = phys_ram_size;
8980     } else {
8981         if (ram_size < 0)
8982             ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
8983
8984         phys_ram_size += ram_size;
8985     }
8986
8987     phys_ram_base = qemu_vmalloc(phys_ram_size);
8988     if (!phys_ram_base) {
8989         fprintf(stderr, "Could not allocate physical memory\n");
8990         exit(1);
8991     }
8992
8993     bdrv_init();
8994
8995     /* we always create the cdrom drive, even if no disk is there */
8996
8997     if (nb_drives_opt < MAX_DRIVES)
8998         drive_add(NULL, CDROM_ALIAS);
8999
9000     /* we always create at least one floppy */
9001
9002     if (nb_drives_opt < MAX_DRIVES)
9003         drive_add(NULL, FD_ALIAS, 0);
9004
9005     /* we always create one sd slot, even if no card is in it */
9006
9007     if (nb_drives_opt < MAX_DRIVES)
9008         drive_add(NULL, SD_ALIAS);
9009
9010     /* open the virtual block devices */
9011
9012     for(i = 0; i < nb_drives_opt; i++)
9013         if (drive_init(&drives_opt[i], snapshot, machine) == -1)
9014             exit(1);
9015
9016     register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
9017     register_savevm("ram", 0, 2, ram_save, ram_load, NULL);
9018
9019     init_ioports();
9020
9021     /* terminal init */
9022     memset(&display_state, 0, sizeof(display_state));
9023     if (nographic) {
9024         if (curses) {
9025             fprintf(stderr, "fatal: -nographic can't be used with -curses\n");
9026             exit(1);
9027         }
9028         /* nearly nothing to do */
9029         dumb_display_init(ds);
9030     } else if (vnc_display != NULL) {
9031         vnc_display_init(ds);
9032         if (vnc_display_open(ds, vnc_display) < 0)
9033             exit(1);
9034     } else
9035 #if defined(CONFIG_CURSES)
9036     if (curses) {
9037         curses_display_init(ds, full_screen);
9038     } else
9039 #endif
9040     {
9041 #if defined(CONFIG_SDL)
9042         sdl_display_init(ds, full_screen, no_frame);
9043 #elif defined(CONFIG_COCOA)
9044         cocoa_display_init(ds, full_screen);
9045 #else
9046         dumb_display_init(ds);
9047 #endif
9048     }
9049
9050     /* Maintain compatibility with multiple stdio monitors */
9051     if (!strcmp(monitor_device,"stdio")) {
9052         for (i = 0; i < MAX_SERIAL_PORTS; i++) {
9053             const char *devname = serial_devices[i];
9054             if (devname && !strcmp(devname,"mon:stdio")) {
9055                 monitor_device = NULL;
9056                 break;
9057             } else if (devname && !strcmp(devname,"stdio")) {
9058                 monitor_device = NULL;
9059                 serial_devices[i] = "mon:stdio";
9060                 break;
9061             }
9062         }
9063     }
9064     if (monitor_device) {
9065         monitor_hd = qemu_chr_open(monitor_device);
9066         if (!monitor_hd) {
9067             fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
9068             exit(1);
9069         }
9070         monitor_init(monitor_hd, !nographic);
9071     }
9072
9073     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
9074         const char *devname = serial_devices[i];
9075         if (devname && strcmp(devname, "none")) {
9076             serial_hds[i] = qemu_chr_open(devname);
9077             if (!serial_hds[i]) {
9078                 fprintf(stderr, "qemu: could not open serial device '%s'\n",
9079                         devname);
9080                 exit(1);
9081             }
9082             if (strstart(devname, "vc", 0))
9083                 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
9084         }
9085     }
9086
9087     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
9088         const char *devname = parallel_devices[i];
9089         if (devname && strcmp(devname, "none")) {
9090             parallel_hds[i] = qemu_chr_open(devname);
9091             if (!parallel_hds[i]) {
9092                 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
9093                         devname);
9094                 exit(1);
9095             }
9096             if (strstart(devname, "vc", 0))
9097                 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
9098         }
9099     }
9100
9101     machine->init(ram_size, vga_ram_size, boot_devices, ds,
9102                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
9103
9104     /* init USB devices */
9105     if (usb_enabled) {
9106         for(i = 0; i < usb_devices_index; i++) {
9107             if (usb_device_add(usb_devices[i]) < 0) {
9108                 fprintf(stderr, "Warning: could not add USB device %s\n",
9109                         usb_devices[i]);
9110             }
9111         }
9112     }
9113
9114     if (display_state.dpy_refresh) {
9115         display_state.gui_timer = qemu_new_timer(rt_clock, gui_update, &display_state);
9116         qemu_mod_timer(display_state.gui_timer, qemu_get_clock(rt_clock));
9117     }
9118
9119 #ifdef CONFIG_GDBSTUB
9120     if (use_gdbstub) {
9121         /* XXX: use standard host:port notation and modify options
9122            accordingly. */
9123         if (gdbserver_start(gdbstub_port) < 0) {
9124             fprintf(stderr, "qemu: could not open gdbstub device on port '%s'\n",
9125                     gdbstub_port);
9126             exit(1);
9127         }
9128     }
9129 #endif
9130
9131     if (loadvm)
9132         do_loadvm(loadvm);
9133
9134     {
9135         /* XXX: simplify init */
9136         read_passwords();
9137         if (autostart) {
9138             vm_start();
9139         }
9140     }
9141
9142     if (daemonize) {
9143         uint8_t status = 0;
9144         ssize_t len;
9145         int fd;
9146
9147     again1:
9148         len = write(fds[1], &status, 1);
9149         if (len == -1 && (errno == EINTR))
9150             goto again1;
9151
9152         if (len != 1)
9153             exit(1);
9154
9155         TFR(fd = open("/dev/null", O_RDWR));
9156         if (fd == -1)
9157             exit(1);
9158
9159         dup2(fd, 0);
9160         dup2(fd, 1);
9161         dup2(fd, 2);
9162
9163         close(fd);
9164     }
9165
9166     main_loop();
9167     quit_timers();
9168
9169 #if !defined(_WIN32)
9170     /* close network clients */
9171     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
9172         VLANClientState *vc;
9173
9174         for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
9175             if (vc->fd_read == tap_receive) {
9176                 char ifname[64];
9177                 TAPState *s = vc->opaque;
9178
9179                 if (sscanf(vc->info_str, "tap: ifname=%63s ", ifname) == 1 &&
9180                     s->down_script[0])
9181                     launch_script(s->down_script, ifname, s->fd);
9182             }
9183         }
9184     }
9185 #endif
9186     return 0;
9187 }