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 <unistd.h>
  25 #include <fcntl.h>
  26 #include <signal.h>
  27 #include <time.h>
  28 #include <errno.h>
  29 #include <sys/time.h>
  30 #include <zlib.h>
  31
  32 /* Needed early for CONFIG_BSD etc. */
  33 #include "config-host.h"
  34
  35 #ifndef _WIN32
  36 #include <libgen.h>
  37 #include <sys/times.h>
  38 #include <sys/wait.h>
  39 #include <termios.h>
  40 #include <sys/mman.h>
  41 #include <sys/ioctl.h>
  42 #include <sys/resource.h>
  43 #include <sys/socket.h>
  44 #include <netinet/in.h>
  45 #include <net/if.h>
  46 #include <arpa/inet.h>
  47 #include <dirent.h>
  48 #include <netdb.h>
  49 #include <sys/select.h>
  50 #ifdef CONFIG_BSD
  51 #include <sys/stat.h>
  52 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
  53 #include <libutil.h>
  54 #include <sys/sysctl.h>
  55 #else
  56 #include <util.h>
  57 #endif
  58 #else
  59 #ifdef __linux__
  60 #include <pty.h>
  61 #include <malloc.h>
  62 #include <sys/prctl.h>
  63
  64 #include <linux/ppdev.h>
  65 #include <linux/parport.h>
  66 #endif
  67 #ifdef __sun__
  68 #include <sys/stat.h>
  69 #include <sys/ethernet.h>
  70 #include <sys/sockio.h>
  71 #include <netinet/arp.h>
  72 #include <netinet/in_systm.h>
  73 #include <netinet/ip.h>
  74 #include <netinet/ip_icmp.h> // must come after ip.h
  75 #include <netinet/udp.h>
  76 #include <netinet/tcp.h>
  77 #include <net/if.h>
  78 #include <syslog.h>
  79 #include <stropts.h>
  80 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
  81    discussion about Solaris header problems */
  82 extern int madvise(caddr_t, size_t, int);
  83 #endif
  84 #endif
  85 #endif
  86
  87 #if defined(__OpenBSD__)
  88 #include <util.h>
  89 #endif
  90
  91 #if defined(CONFIG_VDE)
  92 #include <libvdeplug.h>
  93 #endif
  94
  95 #ifdef _WIN32
  96 #include <windows.h>
  97 #endif
  98
  99 #ifdef CONFIG_SDL
 100 #if defined(__APPLE__) || defined(main)
 101 #include <SDL.h>
 102 int qemu_main(int argc, char **argv, char **envp);
 103 int main(int argc, char **argv)
 104 {
 105     return qemu_main(argc, argv, NULL);
 106 }
 107 #undef main
 108 #define main qemu_main
 109 #endif
 110 #endif /* CONFIG_SDL */
 111
 112 #ifdef CONFIG_COCOA
 113 #undef main
 114 #define main qemu_main
 115 #endif /* CONFIG_COCOA */
 116
 117 #include "hw/hw.h"
 118 #include "hw/boards.h"
 119 #include "hw/usb.h"
 120 #include "hw/pcmcia.h"
 121 #include "hw/pc.h"
 122 #include "hw/isa.h"
 123 #include "hw/baum.h"
 124 #include "hw/bt.h"
 125 #include "hw/watchdog.h"
 126 #include "hw/smbios.h"
 127 #include "hw/xen.h"
 128 #include "hw/qdev.h"
 129 #include "hw/loader.h"
 130 #include "bt-host.h"
 131 #include "net.h"
 132 #include "net/slirp.h"
 133 #include "monitor.h"
 134 #include "console.h"
 135 #include "sysemu.h"
 136 #include "gdbstub.h"
 137 #include "qemu-timer.h"
 138 #include "qemu-char.h"
 139 #include "cache-utils.h"
 140 #include "block.h"
 141 #include "block_int.h"
 142 #include "block-migration.h"
 143 #include "dma.h"
 144 #include "audio/audio.h"
 145 #include "migration.h"
 146 #include "kvm.h"
 147 #include "qemu-option.h"
 148 #include "qemu-config.h"
 149 #include "qemu-objects.h"
 150 #include "qemu-options.h"
 151 #include "hw/device-assignment.h"
 152 #ifdef CONFIG_LINUX
 153 #include "fsdev/qemu-fsdev.h"
 154 #endif
 155
 156 #include "disas.h"
 157
 158 #include "qemu_socket.h"
 159
 160 #include "slirp/libslirp.h"
 161
 162 #include "qemu-queue.h"
 163 #include "cpus.h"
 164 #include "arch_init.h"
 165
 166 //#define DEBUG_NET
 167 //#define DEBUG_SLIRP
 168
 169 #define DEFAULT_RAM_SIZE 128
 170
 171 #define MAX_VIRTIO_CONSOLES 1
 172
 173 static const char *data_dir;
 174 const char *bios_name = NULL;
 175 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
 176    to store the VM snapshots */
 177 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
 178 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
 179 DriveInfo *extboot_drive = NULL;
 180 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
 181 DisplayType display_type = DT_DEFAULT;
 182 const char* keyboard_layout = NULL;
 183 ram_addr_t ram_size;
 184 const char *mem_path = NULL;
 185 #ifdef MAP_POPULATE
 186 int mem_prealloc = 0; /* force preallocation of physical target memory */
 187 #endif
 188 int nb_nics;
 189 NICInfo nd_table[MAX_NICS];
 190 int vm_running;
 191 int autostart;
 192 static int rtc_utc = 1;
 193 static int rtc_date_offset = -1; /* -1 means no change */
 194 QEMUClock *rtc_clock;
 195 int vga_interface_type = VGA_NONE;
 196 static int full_screen = 0;
 197 #ifdef CONFIG_SDL
 198 static int no_frame = 0;
 199 #endif
 200 int no_quit = 0;
 201 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 202 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 203 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
 204 int win2k_install_hack = 0;
 205 int rtc_td_hack = 0;
 206 int usb_enabled = 0;
 207 int singlestep = 0;
 208 const char *assigned_devices[MAX_DEV_ASSIGN_CMDLINE];
 209 int assigned_devices_index;
 210 int smp_cpus = 1;
 211 int max_cpus = 0;
 212 int smp_cores = 1;
 213 int smp_threads = 1;
 214 const char *vnc_display;
 215 int acpi_enabled = 1;
 216 #ifdef TARGET_I386
 217 int no_hpet = 0;
 218 #endif
 219 int fd_bootchk = 1;
 220 int no_reboot = 0;
 221 int no_shutdown = 0;
 222 int cursor_hide = 1;
 223 int graphic_rotate = 0;
 224 uint8_t irq0override = 1;
 225 #ifndef _WIN32
 226 int daemonize = 0;
 227 #endif
 228 const char *watchdog;
 229 const char *option_rom[MAX_OPTION_ROMS];
 230 int nb_option_roms;
 231 int semihosting_enabled = 0;
 232 int time_drift_fix = 0;
 233 unsigned int kvm_shadow_memory = 0;
 234 int old_param = 0;
 235 const char *qemu_name;
 236 int alt_grab = 0;
 237 int ctrl_grab = 0;
 238 unsigned int nb_prom_envs = 0;
 239 const char *prom_envs[MAX_PROM_ENVS];
 240 const char *nvram = NULL;
 241 int boot_menu;
 242
 243 int nb_numa_nodes;
 244 uint64_t node_mem[MAX_NODES];
 245 uint64_t node_cpumask[MAX_NODES];
 246
 247 static QEMUTimer *nographic_timer;
 248
 249 uint8_t qemu_uuid[16];
 250
 251 static QEMUBootSetHandler *boot_set_handler;
 252 static void *boot_set_opaque;
 253
 254 int kvm_allowed = 1;
 255 uint32_t xen_domid;
 256 enum xen_mode xen_mode = XEN_EMULATE;
 257
 258 static int default_serial = 1;
 259 static int default_parallel = 1;
 260 static int default_virtcon = 1;
 261 static int default_monitor = 1;
 262 static int default_vga = 1;
 263 static int default_floppy = 1;
 264 static int default_cdrom = 1;
 265 static int default_sdcard = 1;
 266
 267 static struct {
 268     const char *driver;
 269     int *flag;
 270 } default_list[] = {
 271     { .driver = "isa-serial",           .flag = &default_serial    },
 272     { .driver = "isa-parallel",         .flag = &default_parallel  },
 273     { .driver = "isa-fdc",              .flag = &default_floppy    },
 274     { .driver = "ide-drive",            .flag = &default_cdrom     },
 275     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 276     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 277     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 278     { .driver = "VGA",                  .flag = &default_vga       },
 279     { .driver = "cirrus-vga",           .flag = &default_vga       },
 280     { .driver = "vmware-svga",          .flag = &default_vga       },
 281 };
 282
 283 static int default_driver_check(QemuOpts *opts, void *opaque)
 284 {
 285     const char *driver = qemu_opt_get(opts, "driver");
 286     int i;
 287
 288     if (!driver)
 289         return 0;
 290     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 291         if (strcmp(default_list[i].driver, driver) != 0)
 292             continue;
 293         *(default_list[i].flag) = 0;
 294     }
 295     return 0;
 296 }
 297
 298 /***********************************************************/
 299
 300 static void set_proc_name(const char *s)
 301 {
 302 #if defined(__linux__) && defined(PR_SET_NAME)
 303     char name[16];
 304     if (!s)
 305         return;
 306     name[sizeof(name) - 1] = 0;
 307     strncpy(name, s, sizeof(name));
 308     /* Could rewrite argv[0] too, but that's a bit more complicated.
 309        This simple way is enough for `top'. */
 310     prctl(PR_SET_NAME, name);
 311 #endif
 312 }
 313
 314 /***********************************************************/
 315 /* real time host monotonic timer */
 316
 317 /* compute with 96 bit intermediate result: (a*b)/c */
 318 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
 319 {
 320     union {
 321         uint64_t ll;
 322         struct {
 323 #ifdef HOST_WORDS_BIGENDIAN
 324             uint32_t high, low;
 325 #else
 326             uint32_t low, high;
 327 #endif
 328         } l;
 329     } u, res;
 330     uint64_t rl, rh;
 331
 332     u.ll = a;
 333     rl = (uint64_t)u.l.low * (uint64_t)b;
 334     rh = (uint64_t)u.l.high * (uint64_t)b;
 335     rh += (rl >> 32);
 336     res.l.high = rh / c;
 337     res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
 338     return res.ll;
 339 }
 340
 341 /***********************************************************/
 342 /* host time/date access */
 343 void qemu_get_timedate(struct tm *tm, int offset)
 344 {
 345     time_t ti;
 346     struct tm *ret;
 347
 348     time(&ti);
 349     ti += offset;
 350     if (rtc_date_offset == -1) {
 351         if (rtc_utc)
 352             ret = gmtime(&ti);
 353         else
 354             ret = localtime(&ti);
 355     } else {
 356         ti -= rtc_date_offset;
 357         ret = gmtime(&ti);
 358     }
 359
 360     memcpy(tm, ret, sizeof(struct tm));
 361 }
 362
 363 int qemu_timedate_diff(struct tm *tm)
 364 {
 365     time_t seconds;
 366
 367     if (rtc_date_offset == -1)
 368         if (rtc_utc)
 369             seconds = mktimegm(tm);
 370         else
 371             seconds = mktime(tm);
 372     else
 373         seconds = mktimegm(tm) + rtc_date_offset;
 374
 375     return seconds - time(NULL);
 376 }
 377
 378 void rtc_change_mon_event(struct tm *tm)
 379 {
 380     QObject *data;
 381
 382     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 383     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 384     qobject_decref(data);
 385 }
 386
 387 static void configure_rtc_date_offset(const char *startdate, int legacy)
 388 {
 389     time_t rtc_start_date;
 390     struct tm tm;
 391
 392     if (!strcmp(startdate, "now") && legacy) {
 393         rtc_date_offset = -1;
 394     } else {
 395         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 396                    &tm.tm_year,
 397                    &tm.tm_mon,
 398                    &tm.tm_mday,
 399                    &tm.tm_hour,
 400                    &tm.tm_min,
 401                    &tm.tm_sec) == 6) {
 402             /* OK */
 403         } else if (sscanf(startdate, "%d-%d-%d",
 404                           &tm.tm_year,
 405                           &tm.tm_mon,
 406                           &tm.tm_mday) == 3) {
 407             tm.tm_hour = 0;
 408             tm.tm_min = 0;
 409             tm.tm_sec = 0;
 410         } else {
 411             goto date_fail;
 412         }
 413         tm.tm_year -= 1900;
 414         tm.tm_mon--;
 415         rtc_start_date = mktimegm(&tm);
 416         if (rtc_start_date == -1) {
 417         date_fail:
 418             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 419                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 420             exit(1);
 421         }
 422         rtc_date_offset = time(NULL) - rtc_start_date;
 423     }
 424 }
 425
 426 static void configure_rtc(QemuOpts *opts)
 427 {
 428     const char *value;
 429
 430     value = qemu_opt_get(opts, "base");
 431     if (value) {
 432         if (!strcmp(value, "utc")) {
 433             rtc_utc = 1;
 434         } else if (!strcmp(value, "localtime")) {
 435             rtc_utc = 0;
 436         } else {
 437             configure_rtc_date_offset(value, 0);
 438         }
 439     }
 440     value = qemu_opt_get(opts, "clock");
 441     if (value) {
 442         if (!strcmp(value, "host")) {
 443             rtc_clock = host_clock;
 444         } else if (!strcmp(value, "vm")) {
 445             rtc_clock = vm_clock;
 446         } else {
 447             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 448             exit(1);
 449         }
 450     }
 451     value = qemu_opt_get(opts, "driftfix");
 452     if (value) {
 453         if (!strcmp(value, "slew")) {
 454             rtc_td_hack = 1;
 455         } else if (!strcmp(value, "none")) {
 456             rtc_td_hack = 0;
 457         } else {
 458             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 459             exit(1);
 460         }
 461     }
 462 }
 463
 464 /***********************************************************/
 465 /* Bluetooth support */
 466 static int nb_hcis;
 467 static int cur_hci;
 468 static struct HCIInfo *hci_table[MAX_NICS];
 469
 470 static struct bt_vlan_s {
 471     struct bt_scatternet_s net;
 472     int id;
 473     struct bt_vlan_s *next;
 474 } *first_bt_vlan;
 475
 476 /* find or alloc a new bluetooth "VLAN" */
 477 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 478 {
 479     struct bt_vlan_s **pvlan, *vlan;
 480     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 481         if (vlan->id == id)
 482             return &vlan->net;
 483     }
 484     vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
 485     vlan->id = id;
 486     pvlan = &first_bt_vlan;
 487     while (*pvlan != NULL)
 488         pvlan = &(*pvlan)->next;
 489     *pvlan = vlan;
 490     return &vlan->net;
 491 }
 492
 493 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 494 {
 495 }
 496
 497 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 498 {
 499     return -ENOTSUP;
 500 }
 501
 502 static struct HCIInfo null_hci = {
 503     .cmd_send = null_hci_send,
 504     .sco_send = null_hci_send,
 505     .acl_send = null_hci_send,
 506     .bdaddr_set = null_hci_addr_set,
 507 };
 508
 509 struct HCIInfo *qemu_next_hci(void)
 510 {
 511     if (cur_hci == nb_hcis)
 512         return &null_hci;
 513
 514     return hci_table[cur_hci++];
 515 }
 516
 517 static struct HCIInfo *hci_init(const char *str)
 518 {
 519     char *endp;
 520     struct bt_scatternet_s *vlan = 0;
 521
 522     if (!strcmp(str, "null"))
 523         /* null */
 524         return &null_hci;
 525     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 526         /* host[:hciN] */
 527         return bt_host_hci(str[4] ? str + 5 : "hci0");
 528     else if (!strncmp(str, "hci", 3)) {
 529         /* hci[,vlan=n] */
 530         if (str[3]) {
 531             if (!strncmp(str + 3, ",vlan=", 6)) {
 532                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 533                 if (*endp)
 534                     vlan = 0;
 535             }
 536         } else
 537             vlan = qemu_find_bt_vlan(0);
 538         if (vlan)
 539            return bt_new_hci(vlan);
 540     }
 541
 542     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 543
 544     return 0;
 545 }
 546
 547 static int bt_hci_parse(const char *str)
 548 {
 549     struct HCIInfo *hci;
 550     bdaddr_t bdaddr;
 551
 552     if (nb_hcis >= MAX_NICS) {
 553         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 554         return -1;
 555     }
 556
 557     hci = hci_init(str);
 558     if (!hci)
 559         return -1;
 560
 561     bdaddr.b[0] = 0x52;
 562     bdaddr.b[1] = 0x54;
 563     bdaddr.b[2] = 0x00;
 564     bdaddr.b[3] = 0x12;
 565     bdaddr.b[4] = 0x34;
 566     bdaddr.b[5] = 0x56 + nb_hcis;
 567     hci->bdaddr_set(hci, bdaddr.b);
 568
 569     hci_table[nb_hcis++] = hci;
 570
 571     return 0;
 572 }
 573
 574 static void bt_vhci_add(int vlan_id)
 575 {
 576     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 577
 578     if (!vlan->slave)
 579         fprintf(stderr, "qemu: warning: adding a VHCI to "
 580                         "an empty scatternet %i\n", vlan_id);
 581
 582     bt_vhci_init(bt_new_hci(vlan));
 583 }
 584
 585 static struct bt_device_s *bt_device_add(const char *opt)
 586 {
 587     struct bt_scatternet_s *vlan;
 588     int vlan_id = 0;
 589     char *endp = strstr(opt, ",vlan=");
 590     int len = (endp ? endp - opt : strlen(opt)) + 1;
 591     char devname[10];
 592
 593     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 594
 595     if (endp) {
 596         vlan_id = strtol(endp + 6, &endp, 0);
 597         if (*endp) {
 598             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 599             return 0;
 600         }
 601     }
 602
 603     vlan = qemu_find_bt_vlan(vlan_id);
 604
 605     if (!vlan->slave)
 606         fprintf(stderr, "qemu: warning: adding a slave device to "
 607                         "an empty scatternet %i\n", vlan_id);
 608
 609     if (!strcmp(devname, "keyboard"))
 610         return bt_keyboard_init(vlan);
 611
 612     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 613     return 0;
 614 }
 615
 616 static int bt_parse(const char *opt)
 617 {
 618     const char *endp, *p;
 619     int vlan;
 620
 621     if (strstart(opt, "hci", &endp)) {
 622         if (!*endp || *endp == ',') {
 623             if (*endp)
 624                 if (!strstart(endp, ",vlan=", 0))
 625                     opt = endp + 1;
 626
 627             return bt_hci_parse(opt);
 628        }
 629     } else if (strstart(opt, "vhci", &endp)) {
 630         if (!*endp || *endp == ',') {
 631             if (*endp) {
 632                 if (strstart(endp, ",vlan=", &p)) {
 633                     vlan = strtol(p, (char **) &endp, 0);
 634                     if (*endp) {
 635                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 636                         return 1;
 637                     }
 638                 } else {
 639                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 640                     return 1;
 641                 }
 642             } else
 643                 vlan = 0;
 644
 645             bt_vhci_add(vlan);
 646             return 0;
 647         }
 648     } else if (strstart(opt, "device:", &endp))
 649         return !bt_device_add(endp);
 650
 651     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 652     return 1;
 653 }
 654
 655 /***********************************************************/
 656 /* QEMU Block devices */
 657
 658 #define HD_ALIAS "index=%d,media=disk"
 659 #define CDROM_ALIAS "index=2,media=cdrom"
 660 #define FD_ALIAS "index=%d,if=floppy"
 661 #define PFLASH_ALIAS "if=pflash"
 662 #define MTD_ALIAS "if=mtd"
 663 #define SD_ALIAS "index=0,if=sd"
 664
 665 QemuOpts *drive_add(const char *file, const char *fmt, ...)
 666 {
 667     va_list ap;
 668     char optstr[1024];
 669     QemuOpts *opts;
 670
 671     va_start(ap, fmt);
 672     vsnprintf(optstr, sizeof(optstr), fmt, ap);
 673     va_end(ap);
 674
 675     opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
 676     if (!opts) {
 677         return NULL;
 678     }
 679     if (file)
 680         qemu_opt_set(opts, "file", file);
 681     return opts;
 682 }
 683
 684 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
 685 {
 686     DriveInfo *dinfo;
 687
 688     /* seek interface, bus and unit */
 689
 690     QTAILQ_FOREACH(dinfo, &drives, next) {
 691         if (dinfo->type == type &&
 692             dinfo->bus == bus &&
 693             dinfo->unit == unit)
 694             return dinfo;
 695     }
 696
 697     return NULL;
 698 }
 699
 700 DriveInfo *drive_get_by_id(const char *id)
 701 {
 702     DriveInfo *dinfo;
 703
 704     QTAILQ_FOREACH(dinfo, &drives, next) {
 705         if (strcmp(id, dinfo->id))
 706             continue;
 707         return dinfo;
 708     }
 709     return NULL;
 710 }
 711
 712 int drive_get_max_bus(BlockInterfaceType type)
 713 {
 714     int max_bus;
 715     DriveInfo *dinfo;
 716
 717     max_bus = -1;
 718     QTAILQ_FOREACH(dinfo, &drives, next) {
 719         if(dinfo->type == type &&
 720            dinfo->bus > max_bus)
 721             max_bus = dinfo->bus;
 722     }
 723     return max_bus;
 724 }
 725
 726 const char *drive_get_serial(BlockDriverState *bdrv)
 727 {
 728     DriveInfo *dinfo;
 729
 730     QTAILQ_FOREACH(dinfo, &drives, next) {
 731         if (dinfo->bdrv == bdrv)
 732             return dinfo->serial;
 733     }
 734
 735     return "\0";
 736 }
 737
 738 BlockInterfaceErrorAction drive_get_on_error(
 739     BlockDriverState *bdrv, int is_read)
 740 {
 741     DriveInfo *dinfo;
 742
 743     QTAILQ_FOREACH(dinfo, &drives, next) {
 744         if (dinfo->bdrv == bdrv)
 745             return is_read ? dinfo->on_read_error : dinfo->on_write_error;
 746     }
 747
 748     return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
 749 }
 750
 751 static void bdrv_format_print(void *opaque, const char *name)
 752 {
 753     fprintf(stderr, " %s", name);
 754 }
 755
 756 void drive_uninit(DriveInfo *dinfo)
 757 {
 758     qemu_opts_del(dinfo->opts);
 759     bdrv_delete(dinfo->bdrv);
 760     QTAILQ_REMOVE(&drives, dinfo, next);
 761     qemu_free(dinfo);
 762 }
 763
 764 static int parse_block_error_action(const char *buf, int is_read)
 765 {
 766     if (!strcmp(buf, "ignore")) {
 767         return BLOCK_ERR_IGNORE;
 768     } else if (!is_read && !strcmp(buf, "enospc")) {
 769         return BLOCK_ERR_STOP_ENOSPC;
 770     } else if (!strcmp(buf, "stop")) {
 771         return BLOCK_ERR_STOP_ANY;
 772     } else if (!strcmp(buf, "report")) {
 773         return BLOCK_ERR_REPORT;
 774     } else {
 775         fprintf(stderr, "qemu: '%s' invalid %s error action\n",
 776             buf, is_read ? "read" : "write");
 777         return -1;
 778     }
 779 }
 780
 781 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
 782                       int *fatal_error)
 783 {
 784     const char *buf;
 785     const char *file = NULL;
 786     char devname[128];
 787     const char *serial;
 788     const char *mediastr = "";
 789     BlockInterfaceType type;
 790     enum { MEDIA_DISK, MEDIA_CDROM } media;
 791     int bus_id, unit_id;
 792     int cyls, heads, secs, translation;
 793     BlockDriver *drv = NULL;
 794     QEMUMachine *machine = opaque;
 795     int max_devs;
 796     int index;
 797     int ro = 0;
 798     int bdrv_flags = 0;
 799     int on_read_error, on_write_error;
 800     const char *devaddr;
 801     DriveInfo *dinfo;
 802     int is_extboot = 0;
 803     int snapshot = 0;
 804
 805     *fatal_error = 1;
 806
 807     translation = BIOS_ATA_TRANSLATION_AUTO;
 808
 809     if (machine && machine->use_scsi) {
 810         type = IF_SCSI;
 811         max_devs = MAX_SCSI_DEVS;
 812         pstrcpy(devname, sizeof(devname), "scsi");
 813     } else {
 814         type = IF_IDE;
 815         max_devs = MAX_IDE_DEVS;
 816         pstrcpy(devname, sizeof(devname), "ide");
 817     }
 818     media = MEDIA_DISK;
 819
 820     /* extract parameters */
 821     bus_id  = qemu_opt_get_number(opts, "bus", 0);
 822     unit_id = qemu_opt_get_number(opts, "unit", -1);
 823     index   = qemu_opt_get_number(opts, "index", -1);
 824
 825     cyls  = qemu_opt_get_number(opts, "cyls", 0);
 826     heads = qemu_opt_get_number(opts, "heads", 0);
 827     secs  = qemu_opt_get_number(opts, "secs", 0);
 828
 829     snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
 830     ro = qemu_opt_get_bool(opts, "readonly", 0);
 831
 832     file = qemu_opt_get(opts, "file");
 833     serial = qemu_opt_get(opts, "serial");
 834
 835     if ((buf = qemu_opt_get(opts, "if")) != NULL) {
 836         pstrcpy(devname, sizeof(devname), buf);
 837         if (!strcmp(buf, "ide")) {
 838             type = IF_IDE;
 839             max_devs = MAX_IDE_DEVS;
 840         } else if (!strcmp(buf, "scsi")) {
 841             type = IF_SCSI;
 842             max_devs = MAX_SCSI_DEVS;
 843         } else if (!strcmp(buf, "floppy")) {
 844             type = IF_FLOPPY;
 845             max_devs = 0;
 846         } else if (!strcmp(buf, "pflash")) {
 847             type = IF_PFLASH;
 848             max_devs = 0;
 849         } else if (!strcmp(buf, "mtd")) {
 850             type = IF_MTD;
 851             max_devs = 0;
 852         } else if (!strcmp(buf, "sd")) {
 853             type = IF_SD;
 854             max_devs = 0;
 855         } else if (!strcmp(buf, "virtio")) {
 856             type = IF_VIRTIO;
 857             max_devs = 0;
 858         } else if (!strcmp(buf, "xen")) {
 859             type = IF_XEN;
 860             max_devs = 0;
 861         } else if (!strcmp(buf, "none")) {
 862             type = IF_NONE;
 863             max_devs = 0;
 864         } else {
 865             fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
 866             return NULL;
 867         }
 868     }
 869
 870     if (cyls || heads || secs) {
 871         if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
 872             fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
 873             return NULL;
 874         }
 875         if (heads < 1 || (type == IF_IDE && heads > 16)) {
 876             fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
 877             return NULL;
 878         }
 879         if (secs < 1 || (type == IF_IDE && secs > 63)) {
 880             fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
 881             return NULL;
 882         }
 883     }
 884
 885     if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
 886         if (!cyls) {
 887             fprintf(stderr,
 888                     "qemu: '%s' trans must be used with cyls,heads and secs\n",
 889                     buf);
 890             return NULL;
 891         }
 892         if (!strcmp(buf, "none"))
 893             translation = BIOS_ATA_TRANSLATION_NONE;
 894         else if (!strcmp(buf, "lba"))
 895             translation = BIOS_ATA_TRANSLATION_LBA;
 896         else if (!strcmp(buf, "auto"))
 897             translation = BIOS_ATA_TRANSLATION_AUTO;
 898         else {
 899             fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
 900             return NULL;
 901         }
 902     }
 903
 904     if ((buf = qemu_opt_get(opts, "media")) != NULL) {
 905         if (!strcmp(buf, "disk")) {
 906             media = MEDIA_DISK;
 907         } else if (!strcmp(buf, "cdrom")) {
 908             if (cyls || secs || heads) {
 909                 fprintf(stderr,
 910                         "qemu: '%s' invalid physical CHS format\n", buf);
 911                 return NULL;
 912             }
 913             media = MEDIA_CDROM;
 914         } else {
 915             fprintf(stderr, "qemu: '%s' invalid media\n", buf);
 916             return NULL;
 917         }
 918     }
 919
 920     if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
 921         if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
 922             bdrv_flags |= BDRV_O_NOCACHE;
 923         } else if (!strcmp(buf, "writeback")) {
 924             bdrv_flags |= BDRV_O_CACHE_WB;
 925         } else if (!strcmp(buf, "unsafe")) {
 926             bdrv_flags |= BDRV_O_CACHE_WB;
 927             bdrv_flags |= BDRV_O_NO_FLUSH;
 928         } else if (!strcmp(buf, "writethrough")) {
 929             /* this is the default */
 930         } else {
 931            fprintf(stderr, "qemu: invalid cache option\n");
 932            return NULL;
 933         }
 934     }
 935
 936 #ifdef CONFIG_LINUX_AIO
 937     if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
 938         if (!strcmp(buf, "native")) {
 939             bdrv_flags |= BDRV_O_NATIVE_AIO;
 940         } else if (!strcmp(buf, "threads")) {
 941             /* this is the default */
 942         } else {
 943            fprintf(stderr, "qemu: invalid aio option\n");
 944            return NULL;
 945         }
 946     }
 947 #endif
 948
 949     if ((buf = qemu_opt_get(opts, "format")) != NULL) {
 950        if (strcmp(buf, "?") == 0) {
 951             fprintf(stderr, "qemu: Supported formats:");
 952             bdrv_iterate_format(bdrv_format_print, NULL);
 953             fprintf(stderr, "\n");
 954             return NULL;
 955         }
 956         drv = bdrv_find_whitelisted_format(buf);
 957         if (!drv) {
 958             fprintf(stderr, "qemu: '%s' invalid format\n", buf);
 959             return NULL;
 960         }
 961     }
 962
 963     is_extboot = qemu_opt_get_bool(opts, "boot", 0);
 964     if (is_extboot && extboot_drive) {
 965         fprintf(stderr, "qemu: two bootable drives specified\n");
 966         return NULL;
 967     }
 968
 969     on_write_error = BLOCK_ERR_STOP_ENOSPC;
 970     if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
 971         if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
 972             fprintf(stderr, "werror is no supported by this format\n");
 973             return NULL;
 974         }
 975
 976         on_write_error = parse_block_error_action(buf, 0);
 977         if (on_write_error < 0) {
 978             return NULL;
 979         }
 980     }
 981
 982     on_read_error = BLOCK_ERR_REPORT;
 983     if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
 984         if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
 985             fprintf(stderr, "rerror is no supported by this format\n");
 986             return NULL;
 987         }
 988
 989         on_read_error = parse_block_error_action(buf, 1);
 990         if (on_read_error < 0) {
 991             return NULL;
 992         }
 993     }
 994
 995     if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
 996         if (type != IF_VIRTIO) {
 997             fprintf(stderr, "addr is not supported\n");
 998             return NULL;
 999         }
1000     }
1001
1002     /* compute bus and unit according index */
1003
1004     if (index != -1) {
1005         if (bus_id != 0 || unit_id != -1) {
1006             fprintf(stderr,
1007                     "qemu: index cannot be used with bus and unit\n");
1008             return NULL;
1009         }
1010         if (max_devs == 0)
1011         {
1012             unit_id = index;
1013             bus_id = 0;
1014         } else {
1015             unit_id = index % max_devs;
1016             bus_id = index / max_devs;
1017         }
1018     }
1019
1020     /* if user doesn't specify a unit_id,
1021      * try to find the first free
1022      */
1023
1024     if (unit_id == -1) {
1025        unit_id = 0;
1026        while (drive_get(type, bus_id, unit_id) != NULL) {
1027            unit_id++;
1028            if (max_devs && unit_id >= max_devs) {
1029                unit_id -= max_devs;
1030                bus_id++;
1031            }
1032        }
1033     }
1034
1035     /* check unit id */
1036
1037     if (max_devs && unit_id >= max_devs) {
1038         fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1039                 unit_id, max_devs - 1);
1040         return NULL;
1041     }
1042
1043     /*
1044      * ignore multiple definitions
1045      */
1046
1047     if (drive_get(type, bus_id, unit_id) != NULL) {
1048         *fatal_error = 0;
1049         return NULL;
1050     }
1051
1052     /* init */
1053
1054     dinfo = qemu_mallocz(sizeof(*dinfo));
1055     if ((buf = qemu_opts_id(opts)) != NULL) {
1056         dinfo->id = qemu_strdup(buf);
1057     } else {
1058         /* no id supplied -> create one */
1059         dinfo->id = qemu_mallocz(32);
1060         if (type == IF_IDE || type == IF_SCSI)
1061             mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1062         if (max_devs)
1063             snprintf(dinfo->id, 32, "%s%i%s%i",
1064                      devname, bus_id, mediastr, unit_id);
1065         else
1066             snprintf(dinfo->id, 32, "%s%s%i",
1067                      devname, mediastr, unit_id);
1068     }
1069     dinfo->bdrv = bdrv_new(dinfo->id);
1070     dinfo->devaddr = devaddr;
1071     dinfo->type = type;
1072     dinfo->bus = bus_id;
1073     dinfo->unit = unit_id;
1074     dinfo->on_read_error = on_read_error;
1075     dinfo->on_write_error = on_write_error;
1076     dinfo->opts = opts;
1077     if (serial)
1078         strncpy(dinfo->serial, serial, sizeof(serial));
1079     QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1080     if (is_extboot) {
1081         extboot_drive = dinfo;
1082     }
1083
1084     switch(type) {
1085     case IF_IDE:
1086     case IF_SCSI:
1087     case IF_XEN:
1088     case IF_NONE:
1089         switch(media) {
1090         case MEDIA_DISK:
1091             if (cyls != 0) {
1092                 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1093                 bdrv_set_translation_hint(dinfo->bdrv, translation);
1094             }
1095             break;
1096         case MEDIA_CDROM:
1097             bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1098             break;
1099         }
1100         break;
1101     case IF_SD:
1102         /* FIXME: This isn't really a floppy, but it's a reasonable
1103            approximation.  */
1104     case IF_FLOPPY:
1105         bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1106         break;
1107     case IF_PFLASH:
1108     case IF_MTD:
1109         break;
1110     case IF_VIRTIO:
1111         /* add virtio block device */
1112         opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1113         qemu_opt_set(opts, "driver", "virtio-blk-pci");
1114         qemu_opt_set(opts, "drive", dinfo->id);
1115         if (devaddr)
1116             qemu_opt_set(opts, "addr", devaddr);
1117         break;
1118     case IF_COUNT:
1119         abort();
1120     }
1121     if (!file) {
1122         *fatal_error = 0;
1123         return NULL;
1124     }
1125     if (snapshot) {
1126         /* always use cache=unsafe with snapshot */
1127         bdrv_flags &= ~BDRV_O_CACHE_MASK;
1128         bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1129     }
1130
1131     if (media == MEDIA_CDROM) {
1132         /* CDROM is fine for any interface, don't check.  */
1133         ro = 1;
1134     } else if (ro == 1) {
1135         if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1136             fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1137             return NULL;
1138         }
1139     }
1140
1141     bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1142
1143     if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1144         fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1145                         file, strerror(errno));
1146         return NULL;
1147     }
1148
1149     if (bdrv_key_required(dinfo->bdrv))
1150         autostart = 0;
1151     *fatal_error = 0;
1152     return dinfo;
1153 }
1154
1155 static int drive_init_func(QemuOpts *opts, void *opaque)
1156 {
1157     QEMUMachine *machine = opaque;
1158     int fatal_error = 0;
1159
1160     if (drive_init(opts, machine, &fatal_error) == NULL) {
1161         if (fatal_error)
1162             return 1;
1163     }
1164     return 0;
1165 }
1166
1167 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1168 {
1169     if (NULL == qemu_opt_get(opts, "snapshot")) {
1170         qemu_opt_set(opts, "snapshot", "on");
1171     }
1172     return 0;
1173 }
1174
1175 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1176 {
1177     boot_set_handler = func;
1178     boot_set_opaque = opaque;
1179 }
1180
1181 int qemu_boot_set(const char *boot_devices)
1182 {
1183     if (!boot_set_handler) {
1184         return -EINVAL;
1185     }
1186     return boot_set_handler(boot_set_opaque, boot_devices);
1187 }
1188
1189 static void validate_bootdevices(char *devices)
1190 {
1191     /* We just do some generic consistency checks */
1192     const char *p;
1193     int bitmap = 0;
1194
1195     for (p = devices; *p != '\0'; p++) {
1196         /* Allowed boot devices are:
1197          * a-b: floppy disk drives
1198          * c-f: IDE disk drives
1199          * g-m: machine implementation dependant drives
1200          * n-p: network devices
1201          * It's up to each machine implementation to check if the given boot
1202          * devices match the actual hardware implementation and firmware
1203          * features.
1204          */
1205         if (*p < 'a' || *p > 'p') {
1206             fprintf(stderr, "Invalid boot device '%c'\n", *p);
1207             exit(1);
1208         }
1209         if (bitmap & (1 << (*p - 'a'))) {
1210             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1211             exit(1);
1212         }
1213         bitmap |= 1 << (*p - 'a');
1214     }
1215 }
1216
1217 static void restore_boot_devices(void *opaque)
1218 {
1219     char *standard_boot_devices = opaque;
1220     static int first = 1;
1221
1222     /* Restore boot order and remove ourselves after the first boot */
1223     if (first) {
1224         first = 0;
1225         return;
1226     }
1227
1228     qemu_boot_set(standard_boot_devices);
1229
1230     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1231     qemu_free(standard_boot_devices);
1232 }
1233
1234 static void numa_add(const char *optarg)
1235 {
1236     char option[128];
1237     char *endptr;
1238     unsigned long long value, endvalue;
1239     int nodenr;
1240
1241     optarg = get_opt_name(option, 128, optarg, ',') + 1;
1242     if (!strcmp(option, "node")) {
1243         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1244             nodenr = nb_numa_nodes;
1245         } else {
1246             nodenr = strtoull(option, NULL, 10);
1247         }
1248
1249         if (get_param_value(option, 128, "mem", optarg) == 0) {
1250             node_mem[nodenr] = 0;
1251         } else {
1252             value = strtoull(option, &endptr, 0);
1253             switch (*endptr) {
1254             case 0: case 'M': case 'm':
1255                 value <<= 20;
1256                 break;
1257             case 'G': case 'g':
1258                 value <<= 30;
1259                 break;
1260             }
1261             node_mem[nodenr] = value;
1262         }
1263         if (get_param_value(option, 128, "cpus", optarg) == 0) {
1264             node_cpumask[nodenr] = 0;
1265         } else {
1266             value = strtoull(option, &endptr, 10);
1267             if (value >= 64) {
1268                 value = 63;
1269                 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1270             } else {
1271                 if (*endptr == '-') {
1272                     endvalue = strtoull(endptr+1, &endptr, 10);
1273                     if (endvalue >= 63) {
1274                         endvalue = 62;
1275                         fprintf(stderr,
1276                             "only 63 CPUs in NUMA mode supported.\n");
1277                     }
1278                     value = (2ULL << endvalue) - (1ULL << value);
1279                 } else {
1280                     value = 1ULL << value;
1281                 }
1282             }
1283             node_cpumask[nodenr] = value;
1284         }
1285         nb_numa_nodes++;
1286     }
1287     return;
1288 }
1289
1290 static void smp_parse(const char *optarg)
1291 {
1292     int smp, sockets = 0, threads = 0, cores = 0;
1293     char *endptr;
1294     char option[128];
1295
1296     smp = strtoul(optarg, &endptr, 10);
1297     if (endptr != optarg) {
1298         if (*endptr == ',') {
1299             endptr++;
1300         }
1301     }
1302     if (get_param_value(option, 128, "sockets", endptr) != 0)
1303         sockets = strtoull(option, NULL, 10);
1304     if (get_param_value(option, 128, "cores", endptr) != 0)
1305         cores = strtoull(option, NULL, 10);
1306     if (get_param_value(option, 128, "threads", endptr) != 0)
1307         threads = strtoull(option, NULL, 10);
1308     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1309         max_cpus = strtoull(option, NULL, 10);
1310
1311     /* compute missing values, prefer sockets over cores over threads */
1312     if (smp == 0 || sockets == 0) {
1313         sockets = sockets > 0 ? sockets : 1;
1314         cores = cores > 0 ? cores : 1;
1315         threads = threads > 0 ? threads : 1;
1316         if (smp == 0) {
1317             smp = cores * threads * sockets;
1318         }
1319     } else {
1320         if (cores == 0) {
1321             threads = threads > 0 ? threads : 1;
1322             cores = smp / (sockets * threads);
1323         } else {
1324             if (sockets) {
1325                 threads = smp / (cores * sockets);
1326             }
1327         }
1328     }
1329     smp_cpus = smp;
1330     smp_cores = cores > 0 ? cores : 1;
1331     smp_threads = threads > 0 ? threads : 1;
1332     if (max_cpus == 0)
1333         max_cpus = smp_cpus;
1334 }
1335
1336 /***********************************************************/
1337 /* USB devices */
1338
1339 static int usb_device_add(const char *devname, int is_hotplug)
1340 {
1341     const char *p;
1342     USBDevice *dev = NULL;
1343
1344     if (!usb_enabled)
1345         return -1;
1346
1347     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1348     dev = usbdevice_create(devname);
1349     if (dev)
1350         goto done;
1351
1352     /* the other ones */
1353     if (strstart(devname, "host:", &p)) {
1354         dev = usb_host_device_open(p);
1355     } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1356         dev = usb_bt_init(devname[2] ? hci_init(p) :
1357                         bt_new_hci(qemu_find_bt_vlan(0)));
1358     } else {
1359         return -1;
1360     }
1361     if (!dev)
1362         return -1;
1363
1364 done:
1365     return 0;
1366 }
1367
1368 static int usb_device_del(const char *devname)
1369 {
1370     int bus_num, addr;
1371     const char *p;
1372
1373     if (strstart(devname, "host:", &p))
1374         return usb_host_device_close(p);
1375
1376     if (!usb_enabled)
1377         return -1;
1378
1379     p = strchr(devname, '.');
1380     if (!p)
1381         return -1;
1382     bus_num = strtoul(devname, NULL, 0);
1383     addr = strtoul(p + 1, NULL, 0);
1384
1385     return usb_device_delete_addr(bus_num, addr);
1386 }
1387
1388 static int usb_parse(const char *cmdline)
1389 {
1390     int r;
1391     r = usb_device_add(cmdline, 0);
1392     if (r < 0) {
1393         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1394     }
1395     return r;
1396 }
1397
1398 void do_usb_add(Monitor *mon, const QDict *qdict)
1399 {
1400     const char *devname = qdict_get_str(qdict, "devname");
1401     if (usb_device_add(devname, 1) < 0) {
1402         error_report("could not add USB device '%s'", devname);
1403     }
1404 }
1405
1406 void do_usb_del(Monitor *mon, const QDict *qdict)
1407 {
1408     const char *devname = qdict_get_str(qdict, "devname");
1409     if (usb_device_del(devname) < 0) {
1410         error_report("could not delete USB device '%s'", devname);
1411     }
1412 }
1413
1414 /***********************************************************/
1415 /* PCMCIA/Cardbus */
1416
1417 static struct pcmcia_socket_entry_s {
1418     PCMCIASocket *socket;
1419     struct pcmcia_socket_entry_s *next;
1420 } *pcmcia_sockets = 0;
1421
1422 void pcmcia_socket_register(PCMCIASocket *socket)
1423 {
1424     struct pcmcia_socket_entry_s *entry;
1425
1426     entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1427     entry->socket = socket;
1428     entry->next = pcmcia_sockets;
1429     pcmcia_sockets = entry;
1430 }
1431
1432 void pcmcia_socket_unregister(PCMCIASocket *socket)
1433 {
1434     struct pcmcia_socket_entry_s *entry, **ptr;
1435
1436     ptr = &pcmcia_sockets;
1437     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1438         if (entry->socket == socket) {
1439             *ptr = entry->next;
1440             qemu_free(entry);
1441         }
1442 }
1443
1444 void pcmcia_info(Monitor *mon)
1445 {
1446     struct pcmcia_socket_entry_s *iter;
1447
1448     if (!pcmcia_sockets)
1449         monitor_printf(mon, "No PCMCIA sockets\n");
1450
1451     for (iter = pcmcia_sockets; iter; iter = iter->next)
1452         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1453                        iter->socket->attached ? iter->socket->card_string :
1454                        "Empty");
1455 }
1456
1457 /***********************************************************/
1458 /* I/O handling */
1459
1460 typedef struct IOHandlerRecord {
1461     int fd;
1462     IOCanReadHandler *fd_read_poll;
1463     IOHandler *fd_read;
1464     IOHandler *fd_write;
1465     int deleted;
1466     void *opaque;
1467     /* temporary data */
1468     struct pollfd *ufd;
1469     QLIST_ENTRY(IOHandlerRecord) next;
1470 } IOHandlerRecord;
1471
1472 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1473     QLIST_HEAD_INITIALIZER(io_handlers);
1474
1475
1476 /* XXX: fd_read_poll should be suppressed, but an API change is
1477    necessary in the character devices to suppress fd_can_read(). */
1478 int qemu_set_fd_handler2(int fd,
1479                          IOCanReadHandler *fd_read_poll,
1480                          IOHandler *fd_read,
1481                          IOHandler *fd_write,
1482                          void *opaque)
1483 {
1484     IOHandlerRecord *ioh;
1485
1486     if (!fd_read && !fd_write) {
1487         QLIST_FOREACH(ioh, &io_handlers, next) {
1488             if (ioh->fd == fd) {
1489                 ioh->deleted = 1;
1490                 break;
1491             }
1492         }
1493     } else {
1494         QLIST_FOREACH(ioh, &io_handlers, next) {
1495             if (ioh->fd == fd)
1496                 goto found;
1497         }
1498         ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1499         QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1500     found:
1501         ioh->fd = fd;
1502         ioh->fd_read_poll = fd_read_poll;
1503         ioh->fd_read = fd_read;
1504         ioh->fd_write = fd_write;
1505         ioh->opaque = opaque;
1506         ioh->deleted = 0;
1507     }
1508     qemu_notify_event();
1509     return 0;
1510 }
1511
1512 int qemu_set_fd_handler(int fd,
1513                         IOHandler *fd_read,
1514                         IOHandler *fd_write,
1515                         void *opaque)
1516 {
1517     return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1518 }
1519
1520 /***********************************************************/
1521 /* machine registration */
1522
1523 static QEMUMachine *first_machine = NULL;
1524 QEMUMachine *current_machine = NULL;
1525
1526 int qemu_register_machine(QEMUMachine *m)
1527 {
1528     QEMUMachine **pm;
1529     pm = &first_machine;
1530     while (*pm != NULL)
1531         pm = &(*pm)->next;
1532     m->next = NULL;
1533     *pm = m;
1534     return 0;
1535 }
1536
1537 static QEMUMachine *find_machine(const char *name)
1538 {
1539     QEMUMachine *m;
1540
1541     for(m = first_machine; m != NULL; m = m->next) {
1542         if (!strcmp(m->name, name))
1543             return m;
1544         if (m->alias && !strcmp(m->alias, name))
1545             return m;
1546     }
1547     return NULL;
1548 }
1549
1550 static QEMUMachine *find_default_machine(void)
1551 {
1552     QEMUMachine *m;
1553
1554     for(m = first_machine; m != NULL; m = m->next) {
1555         if (m->is_default) {
1556             return m;
1557         }
1558     }
1559     return NULL;
1560 }
1561
1562 /***********************************************************/
1563 /* main execution loop */
1564
1565 static void gui_update(void *opaque)
1566 {
1567     uint64_t interval = GUI_REFRESH_INTERVAL;
1568     DisplayState *ds = opaque;
1569     DisplayChangeListener *dcl = ds->listeners;
1570
1571     qemu_flush_coalesced_mmio_buffer();
1572     dpy_refresh(ds);
1573
1574     while (dcl != NULL) {
1575         if (dcl->gui_timer_interval &&
1576             dcl->gui_timer_interval < interval)
1577             interval = dcl->gui_timer_interval;
1578         dcl = dcl->next;
1579     }
1580     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1581 }
1582
1583 static void nographic_update(void *opaque)
1584 {
1585     uint64_t interval = GUI_REFRESH_INTERVAL;
1586
1587     qemu_flush_coalesced_mmio_buffer();
1588     qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1589 }
1590
1591 struct vm_change_state_entry {
1592     VMChangeStateHandler *cb;
1593     void *opaque;
1594     QLIST_ENTRY (vm_change_state_entry) entries;
1595 };
1596
1597 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1598
1599 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1600                                                      void *opaque)
1601 {
1602     VMChangeStateEntry *e;
1603
1604     e = qemu_mallocz(sizeof (*e));
1605
1606     e->cb = cb;
1607     e->opaque = opaque;
1608     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1609     return e;
1610 }
1611
1612 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1613 {
1614     QLIST_REMOVE (e, entries);
1615     qemu_free (e);
1616 }
1617
1618 void vm_state_notify(int running, int reason)
1619 {
1620     VMChangeStateEntry *e;
1621
1622     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1623         e->cb(e->opaque, running, reason);
1624     }
1625 }
1626
1627 void vm_start(void)
1628 {
1629     if (!vm_running) {
1630         cpu_enable_ticks();
1631         vm_running = 1;
1632         vm_state_notify(1, 0);
1633         resume_all_vcpus();
1634         monitor_protocol_event(QEVENT_RESUME, NULL);
1635     }
1636 }
1637
1638 /* reset/shutdown handler */
1639
1640 typedef struct QEMUResetEntry {
1641     QTAILQ_ENTRY(QEMUResetEntry) entry;
1642     QEMUResetHandler *func;
1643     void *opaque;
1644 } QEMUResetEntry;
1645
1646 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1647     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1648 static int reset_requested;
1649 static int shutdown_requested;
1650 static int powerdown_requested;
1651 int debug_requested;
1652 int vmstop_requested;
1653
1654 int qemu_no_shutdown(void)
1655 {
1656     int r = no_shutdown;
1657     no_shutdown = 0;
1658     return r;
1659 }
1660
1661 int qemu_shutdown_requested(void)
1662 {
1663     int r = shutdown_requested;
1664     shutdown_requested = 0;
1665     return r;
1666 }
1667
1668 int qemu_reset_requested(void)
1669 {
1670     int r = reset_requested;
1671     reset_requested = 0;
1672     return r;
1673 }
1674
1675 int qemu_powerdown_requested(void)
1676 {
1677     int r = powerdown_requested;
1678     powerdown_requested = 0;
1679     return r;
1680 }
1681
1682 static int qemu_debug_requested(void)
1683 {
1684     int r = debug_requested;
1685     debug_requested = 0;
1686     return r;
1687 }
1688
1689 static int qemu_vmstop_requested(void)
1690 {
1691     int r = vmstop_requested;
1692     vmstop_requested = 0;
1693     return r;
1694 }
1695
1696 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1697 {
1698     QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1699
1700     re->func = func;
1701     re->opaque = opaque;
1702     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1703 }
1704
1705 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1706 {
1707     QEMUResetEntry *re;
1708
1709     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1710         if (re->func == func && re->opaque == opaque) {
1711             QTAILQ_REMOVE(&reset_handlers, re, entry);
1712             qemu_free(re);
1713             return;
1714         }
1715     }
1716 }
1717
1718 void qemu_system_reset(void)
1719 {
1720     QEMUResetEntry *re, *nre;
1721
1722     /* reset all devices */
1723     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1724         re->func(re->opaque);
1725     }
1726     monitor_protocol_event(QEVENT_RESET, NULL);
1727     cpu_synchronize_all_post_reset();
1728 }
1729
1730 void qemu_system_reset_request(void)
1731 {
1732     if (no_reboot) {
1733         shutdown_requested = 1;
1734     } else {
1735         reset_requested = 1;
1736     }
1737     if (cpu_single_env) {
1738         cpu_single_env->stopped = 1;
1739     }
1740     qemu_notify_event();
1741 }
1742
1743 void qemu_system_shutdown_request(void)
1744 {
1745     shutdown_requested = 1;
1746     qemu_notify_event();
1747 }
1748
1749 void qemu_system_powerdown_request(void)
1750 {
1751     powerdown_requested = 1;
1752     qemu_notify_event();
1753 }
1754
1755 void main_loop_wait(int nonblocking)
1756 {
1757     IOHandlerRecord *ioh;
1758     fd_set rfds, wfds, xfds;
1759     int ret, nfds;
1760     struct timeval tv;
1761     int timeout;
1762
1763     if (nonblocking)
1764         timeout = 0;
1765     else {
1766         timeout = qemu_calculate_timeout();
1767         qemu_bh_update_timeout(&timeout);
1768     }
1769
1770     os_host_main_loop_wait(&timeout);
1771
1772     /* poll any events */
1773     /* XXX: separate device handlers from system ones */
1774     nfds = -1;
1775     FD_ZERO(&rfds);
1776     FD_ZERO(&wfds);
1777     FD_ZERO(&xfds);
1778     QLIST_FOREACH(ioh, &io_handlers, next) {
1779         if (ioh->deleted)
1780             continue;
1781         if (ioh->fd_read &&
1782             (!ioh->fd_read_poll ||
1783              ioh->fd_read_poll(ioh->opaque) != 0)) {
1784             FD_SET(ioh->fd, &rfds);
1785             if (ioh->fd > nfds)
1786                 nfds = ioh->fd;
1787         }
1788         if (ioh->fd_write) {
1789             FD_SET(ioh->fd, &wfds);
1790             if (ioh->fd > nfds)
1791                 nfds = ioh->fd;
1792         }
1793     }
1794
1795     tv.tv_sec = timeout / 1000;
1796     tv.tv_usec = (timeout % 1000) * 1000;
1797
1798     slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1799
1800     qemu_mutex_unlock_iothread();
1801     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1802     qemu_mutex_lock_iothread();
1803     if (ret > 0) {
1804         IOHandlerRecord *pioh;
1805
1806         QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1807             if (ioh->deleted) {
1808                 QLIST_REMOVE(ioh, next);
1809                 qemu_free(ioh);
1810                 continue;
1811             }
1812             if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1813                 ioh->fd_read(ioh->opaque);
1814                 if (!(ioh->fd_read_poll && ioh->fd_read_poll(ioh->opaque)))
1815                     FD_CLR(ioh->fd, &rfds);
1816             }
1817             if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1818                 ioh->fd_write(ioh->opaque);
1819             }
1820         }
1821     }
1822
1823     slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1824
1825     qemu_run_all_timers();
1826
1827     /* Check bottom-halves last in case any of the earlier events triggered
1828        them.  */
1829     qemu_bh_poll();
1830
1831 }
1832
1833 static int vm_can_run(void)
1834 {
1835     if (powerdown_requested)
1836         return 0;
1837     if (reset_requested)
1838         return 0;
1839     if (shutdown_requested)
1840         return 0;
1841     if (debug_requested)
1842         return 0;
1843     return 1;
1844 }
1845
1846 qemu_irq qemu_system_powerdown;
1847
1848 static void main_loop(void)
1849 {
1850     int r;
1851
1852     if (kvm_enabled()) {
1853         kvm_main_loop();
1854         cpu_disable_ticks();
1855         return;
1856     }
1857
1858     qemu_main_loop_start();
1859
1860     for (;;) {
1861         do {
1862             bool nonblocking = false;
1863 #ifdef CONFIG_PROFILER
1864             int64_t ti;
1865 #endif
1866 #ifndef CONFIG_IOTHREAD
1867             nonblocking = tcg_cpu_exec();
1868 #endif
1869 #ifdef CONFIG_PROFILER
1870             ti = profile_getclock();
1871 #endif
1872             main_loop_wait(nonblocking);
1873 #ifdef CONFIG_PROFILER
1874             dev_time += profile_getclock() - ti;
1875 #endif
1876         } while (vm_can_run());
1877
1878         if ((r = qemu_debug_requested())) {
1879             vm_stop(r);
1880         }
1881         if (qemu_shutdown_requested()) {
1882             monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1883             if (no_shutdown) {
1884                 vm_stop(0);
1885                 no_shutdown = 0;
1886             } else
1887                 break;
1888         }
1889         if (qemu_reset_requested()) {
1890             pause_all_vcpus();
1891             qemu_system_reset();
1892             resume_all_vcpus();
1893         }
1894         if (qemu_powerdown_requested()) {
1895             monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1896             qemu_irq_raise(qemu_system_powerdown);
1897         }
1898         if ((r = qemu_vmstop_requested())) {
1899             vm_stop(r);
1900         }
1901     }
1902     pause_all_vcpus();
1903 }
1904
1905 static void version(void)
1906 {
1907     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1908 }
1909
1910 static void help(int exitcode)
1911 {
1912     const char *options_help =
1913 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1914         opt_help
1915 #define DEFHEADING(text) stringify(text) "\n"
1916 #include "qemu-options.def"
1917 #undef DEF
1918 #undef DEFHEADING
1919 #undef GEN_DOCS
1920         ;
1921     version();
1922     printf("usage: %s [options] [disk_image]\n"
1923            "\n"
1924            "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1925            "\n"
1926            "%s\n"
1927            "During emulation, the following keys are useful:\n"
1928            "ctrl-alt-f      toggle full screen\n"
1929            "ctrl-alt-n      switch to virtual console 'n'\n"
1930            "ctrl-alt        toggle mouse and keyboard grab\n"
1931            "\n"
1932            "When using -nographic, press 'ctrl-a h' to get some help.\n",
1933            "qemu",
1934            options_help);
1935     exit(exitcode);
1936 }
1937
1938 #define HAS_ARG 0x0001
1939
1940 typedef struct QEMUOption {
1941     const char *name;
1942     int flags;
1943     int index;
1944     uint32_t arch_mask;
1945 } QEMUOption;
1946
1947 static const QEMUOption qemu_options[] = {
1948     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1949 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1950     { option, opt_arg, opt_enum, arch_mask },
1951 #define DEFHEADING(text)
1952 #include "qemu-options.def"
1953 #undef DEF
1954 #undef DEFHEADING
1955 #undef GEN_DOCS
1956     { NULL },
1957 };
1958 static void select_vgahw (const char *p)
1959 {
1960     const char *opts;
1961
1962     default_vga = 0;
1963     vga_interface_type = VGA_NONE;
1964     if (strstart(p, "std", &opts)) {
1965         vga_interface_type = VGA_STD;
1966     } else if (strstart(p, "cirrus", &opts)) {
1967         vga_interface_type = VGA_CIRRUS;
1968     } else if (strstart(p, "vmware", &opts)) {
1969         vga_interface_type = VGA_VMWARE;
1970     } else if (strstart(p, "xenfb", &opts)) {
1971         vga_interface_type = VGA_XENFB;
1972     } else if (!strstart(p, "none", &opts)) {
1973     invalid_vga:
1974         fprintf(stderr, "Unknown vga type: %s\n", p);
1975         exit(1);
1976     }
1977     while (*opts) {
1978         const char *nextopt;
1979
1980         if (strstart(opts, ",retrace=", &nextopt)) {
1981             opts = nextopt;
1982             if (strstart(opts, "dumb", &nextopt))
1983                 vga_retrace_method = VGA_RETRACE_DUMB;
1984             else if (strstart(opts, "precise", &nextopt))
1985                 vga_retrace_method = VGA_RETRACE_PRECISE;
1986             else goto invalid_vga;
1987         } else goto invalid_vga;
1988         opts = nextopt;
1989     }
1990 }
1991
1992 static int balloon_parse(const char *arg)
1993 {
1994     QemuOpts *opts;
1995
1996     if (strcmp(arg, "none") == 0) {
1997         return 0;
1998     }
1999
2000     if (!strncmp(arg, "virtio", 6)) {
2001         if (arg[6] == ',') {
2002             /* have params -> parse them */
2003             opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2004             if (!opts)
2005                 return  -1;
2006         } else {
2007             /* create empty opts */
2008             opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2009         }
2010         qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2011         return 0;
2012     }
2013
2014     return -1;
2015 }
2016
2017 char *qemu_find_file(int type, const char *name)
2018 {
2019     int len;
2020     const char *subdir;
2021     char *buf;
2022
2023     /* If name contains path separators then try it as a straight path.  */
2024     if ((strchr(name, '/') || strchr(name, '\\'))
2025         && access(name, R_OK) == 0) {
2026         return qemu_strdup(name);
2027     }
2028     switch (type) {
2029     case QEMU_FILE_TYPE_BIOS:
2030         subdir = "";
2031         break;
2032     case QEMU_FILE_TYPE_KEYMAP:
2033         subdir = "keymaps/";
2034         break;
2035     default:
2036         abort();
2037     }
2038     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2039     buf = qemu_mallocz(len);
2040     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2041     if (access(buf, R_OK)) {
2042         qemu_free(buf);
2043         return NULL;
2044     }
2045     return buf;
2046 }
2047
2048 static int device_help_func(QemuOpts *opts, void *opaque)
2049 {
2050     return qdev_device_help(opts);
2051 }
2052
2053 static int device_init_func(QemuOpts *opts, void *opaque)
2054 {
2055     DeviceState *dev;
2056
2057     dev = qdev_device_add(opts);
2058     if (!dev)
2059         return -1;
2060     return 0;
2061 }
2062
2063 static int chardev_init_func(QemuOpts *opts, void *opaque)
2064 {
2065     CharDriverState *chr;
2066
2067     chr = qemu_chr_open_opts(opts, NULL);
2068     if (!chr)
2069         return -1;
2070     return 0;
2071 }
2072
2073 #ifdef CONFIG_LINUX
2074 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2075 {
2076     int ret;
2077     ret = qemu_fsdev_add(opts);
2078
2079     return ret;
2080 }
2081 #endif
2082
2083 static int mon_init_func(QemuOpts *opts, void *opaque)
2084 {
2085     CharDriverState *chr;
2086     const char *chardev;
2087     const char *mode;
2088     int flags;
2089
2090     mode = qemu_opt_get(opts, "mode");
2091     if (mode == NULL) {
2092         mode = "readline";
2093     }
2094     if (strcmp(mode, "readline") == 0) {
2095         flags = MONITOR_USE_READLINE;
2096     } else if (strcmp(mode, "control") == 0) {
2097         flags = MONITOR_USE_CONTROL;
2098     } else {
2099         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2100         exit(1);
2101     }
2102
2103     if (qemu_opt_get_bool(opts, "default", 0))
2104         flags |= MONITOR_IS_DEFAULT;
2105
2106     chardev = qemu_opt_get(opts, "chardev");
2107     chr = qemu_chr_find(chardev);
2108     if (chr == NULL) {
2109         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2110         exit(1);
2111     }
2112
2113     monitor_init(chr, flags);
2114     return 0;
2115 }
2116
2117 static void monitor_parse(const char *optarg, const char *mode)
2118 {
2119     static int monitor_device_index = 0;
2120     QemuOpts *opts;
2121     const char *p;
2122     char label[32];
2123     int def = 0;
2124
2125     if (strstart(optarg, "chardev:", &p)) {
2126         snprintf(label, sizeof(label), "%s", p);
2127     } else {
2128         snprintf(label, sizeof(label), "compat_monitor%d",
2129                  monitor_device_index);
2130         if (monitor_device_index == 0) {
2131             def = 1;
2132         }
2133         opts = qemu_chr_parse_compat(label, optarg);
2134         if (!opts) {
2135             fprintf(stderr, "parse error: %s\n", optarg);
2136             exit(1);
2137         }
2138     }
2139
2140     opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2141     if (!opts) {
2142         fprintf(stderr, "duplicate chardev: %s\n", label);
2143         exit(1);
2144     }
2145     qemu_opt_set(opts, "mode", mode);
2146     qemu_opt_set(opts, "chardev", label);
2147     if (def)
2148         qemu_opt_set(opts, "default", "on");
2149     monitor_device_index++;
2150 }
2151
2152 struct device_config {
2153     enum {
2154         DEV_USB,       /* -usbdevice     */
2155         DEV_BT,        /* -bt            */
2156         DEV_SERIAL,    /* -serial        */
2157         DEV_PARALLEL,  /* -parallel      */
2158         DEV_VIRTCON,   /* -virtioconsole */
2159         DEV_DEBUGCON,  /* -debugcon */
2160     } type;
2161     const char *cmdline;
2162     QTAILQ_ENTRY(device_config) next;
2163 };
2164 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2165
2166 static void add_device_config(int type, const char *cmdline)
2167 {
2168     struct device_config *conf;
2169
2170     conf = qemu_mallocz(sizeof(*conf));
2171     conf->type = type;
2172     conf->cmdline = cmdline;
2173     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2174 }
2175
2176 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2177 {
2178     struct device_config *conf;
2179     int rc;
2180
2181     QTAILQ_FOREACH(conf, &device_configs, next) {
2182         if (conf->type != type)
2183             continue;
2184         rc = func(conf->cmdline);
2185         if (0 != rc)
2186             return rc;
2187     }
2188     return 0;
2189 }
2190
2191 static int serial_parse(const char *devname)
2192 {
2193     static int index = 0;
2194     char label[32];
2195
2196     if (strcmp(devname, "none") == 0)
2197         return 0;
2198     if (index == MAX_SERIAL_PORTS) {
2199         fprintf(stderr, "qemu: too many serial ports\n");
2200         exit(1);
2201     }
2202     snprintf(label, sizeof(label), "serial%d", index);
2203     serial_hds[index] = qemu_chr_open(label, devname, NULL);
2204     if (!serial_hds[index]) {
2205         fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2206                 devname, strerror(errno));
2207         return -1;
2208     }
2209     index++;
2210     return 0;
2211 }
2212
2213 static int parallel_parse(const char *devname)
2214 {
2215     static int index = 0;
2216     char label[32];
2217
2218     if (strcmp(devname, "none") == 0)
2219         return 0;
2220     if (index == MAX_PARALLEL_PORTS) {
2221         fprintf(stderr, "qemu: too many parallel ports\n");
2222         exit(1);
2223     }
2224     snprintf(label, sizeof(label), "parallel%d", index);
2225     parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2226     if (!parallel_hds[index]) {
2227         fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2228                 devname, strerror(errno));
2229         return -1;
2230     }
2231     index++;
2232     return 0;
2233 }
2234
2235 static int virtcon_parse(const char *devname)
2236 {
2237     static int index = 0;
2238     char label[32];
2239     QemuOpts *bus_opts, *dev_opts;
2240
2241     if (strcmp(devname, "none") == 0)
2242         return 0;
2243     if (index == MAX_VIRTIO_CONSOLES) {
2244         fprintf(stderr, "qemu: too many virtio consoles\n");
2245         exit(1);
2246     }
2247
2248     bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2249     qemu_opt_set(bus_opts, "driver", "virtio-serial");
2250
2251     dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2252     qemu_opt_set(dev_opts, "driver", "virtconsole");
2253
2254     snprintf(label, sizeof(label), "virtcon%d", index);
2255     virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2256     if (!virtcon_hds[index]) {
2257         fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2258                 devname, strerror(errno));
2259         return -1;
2260     }
2261     qemu_opt_set(dev_opts, "chardev", label);
2262
2263     index++;
2264     return 0;
2265 }
2266
2267 static int debugcon_parse(const char *devname)
2268 {
2269     QemuOpts *opts;
2270
2271     if (!qemu_chr_open("debugcon", devname, NULL)) {
2272         exit(1);
2273     }
2274     opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2275     if (!opts) {
2276         fprintf(stderr, "qemu: already have a debugcon device\n");
2277         exit(1);
2278     }
2279     qemu_opt_set(opts, "driver", "isa-debugcon");
2280     qemu_opt_set(opts, "chardev", "debugcon");
2281     return 0;
2282 }
2283
2284 static const QEMUOption *lookup_opt(int argc, char **argv,
2285                                     const char **poptarg, int *poptind)
2286 {
2287     const QEMUOption *popt;
2288     int optind = *poptind;
2289     char *r = argv[optind];
2290     const char *optarg;
2291
2292     loc_set_cmdline(argv, optind, 1);
2293     optind++;
2294     /* Treat --foo the same as -foo.  */
2295     if (r[1] == '-')
2296         r++;
2297     popt = qemu_options;
2298     for(;;) {
2299         if (!popt->name) {
2300             error_report("invalid option");
2301             exit(1);
2302         }
2303         if (!strcmp(popt->name, r + 1))
2304             break;
2305         popt++;
2306     }
2307     if (popt->flags & HAS_ARG) {
2308         if (optind >= argc) {
2309             error_report("requires an argument");
2310             exit(1);
2311         }
2312         optarg = argv[optind++];
2313         loc_set_cmdline(argv, optind - 2, 2);
2314     } else {
2315         optarg = NULL;
2316     }
2317
2318     *poptarg = optarg;
2319     *poptind = optind;
2320
2321     return popt;
2322 }
2323
2324 int main(int argc, char **argv, char **envp)
2325 {
2326     const char *gdbstub_dev = NULL;
2327     int i;
2328     int snapshot, linux_boot;
2329     const char *icount_option = NULL;
2330     const char *initrd_filename;
2331     const char *kernel_filename, *kernel_cmdline;
2332     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2333     DisplayState *ds;
2334     DisplayChangeListener *dcl;
2335     int cyls, heads, secs, translation;
2336     QemuOpts *hda_opts = NULL, *opts;
2337     int optind;
2338     const char *optarg;
2339     const char *loadvm = NULL;
2340     QEMUMachine *machine;
2341     const char *cpu_model;
2342 #ifndef _WIN32
2343     int fds[2];
2344 #endif
2345     int tb_size;
2346     const char *pid_file = NULL;
2347     const char *incoming = NULL;
2348 #ifndef _WIN32
2349     int fd = 0;
2350 #endif
2351     int show_vnc_port = 0;
2352     int defconfig = 1;
2353
2354     error_set_progname(argv[0]);
2355
2356     init_clocks();
2357
2358     qemu_cache_utils_init(envp);
2359
2360     QLIST_INIT (&vm_change_state_head);
2361     os_setup_early_signal_handling();
2362
2363     module_call_init(MODULE_INIT_MACHINE);
2364     machine = find_default_machine();
2365     cpu_model = NULL;
2366     initrd_filename = NULL;
2367     ram_size = 0;
2368     snapshot = 0;
2369     kernel_filename = NULL;
2370     kernel_cmdline = "";
2371     cyls = heads = secs = 0;
2372     translation = BIOS_ATA_TRANSLATION_AUTO;
2373
2374     for (i = 0; i < MAX_NODES; i++) {
2375         node_mem[i] = 0;
2376         node_cpumask[i] = 0;
2377     }
2378
2379     assigned_devices_index = 0;
2380
2381     nb_numa_nodes = 0;
2382     nb_nics = 0;
2383
2384     tb_size = 0;
2385     autostart= 1;
2386
2387     /* first pass of option parsing */
2388     optind = 1;
2389     while (optind < argc) {
2390         if (argv[optind][0] != '-') {
2391             /* disk image */
2392             optind++;
2393             continue;
2394         } else {
2395             const QEMUOption *popt;
2396
2397             popt = lookup_opt(argc, argv, &optarg, &optind);
2398             switch (popt->index) {
2399             case QEMU_OPTION_nodefconfig:
2400                 defconfig=0;
2401                 break;
2402             }
2403         }
2404     }
2405
2406     if (defconfig) {
2407         int ret;
2408
2409         ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2410         if (ret < 0 && ret != -ENOENT) {
2411             exit(1);
2412         }
2413
2414         ret = qemu_read_config_file(arch_config_name);
2415         if (ret < 0 && ret != -ENOENT) {
2416             exit(1);
2417         }
2418     }
2419     cpudef_init();
2420
2421     /* second pass of option parsing */
2422     optind = 1;
2423     for(;;) {
2424         if (optind >= argc)
2425             break;
2426         if (argv[optind][0] != '-') {
2427             hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2428         } else {
2429             const QEMUOption *popt;
2430
2431             popt = lookup_opt(argc, argv, &optarg, &optind);
2432             if (!(popt->arch_mask & arch_type)) {
2433                 printf("Option %s not supported for this target\n", popt->name);
2434                 exit(1);
2435             }
2436             switch(popt->index) {
2437             case QEMU_OPTION_M:
2438                 machine = find_machine(optarg);
2439                 if (!machine) {
2440                     QEMUMachine *m;
2441                     printf("Supported machines are:\n");
2442                     for(m = first_machine; m != NULL; m = m->next) {
2443                         if (m->alias)
2444                             printf("%-10s %s (alias of %s)\n",
2445                                    m->alias, m->desc, m->name);
2446                         printf("%-10s %s%s\n",
2447                                m->name, m->desc,
2448                                m->is_default ? " (default)" : "");
2449                     }
2450                     exit(*optarg != '?');
2451                 }
2452                 break;
2453             case QEMU_OPTION_cpu:
2454                 /* hw initialization will check this */
2455                 if (*optarg == '?') {
2456                     list_cpus(stdout, &fprintf, optarg);
2457                     exit(0);
2458                 } else {
2459                     cpu_model = optarg;
2460                 }
2461                 break;
2462             case QEMU_OPTION_initrd:
2463                 initrd_filename = optarg;
2464                 break;
2465             case QEMU_OPTION_hda:
2466                 if (cyls == 0)
2467                     hda_opts = drive_add(optarg, HD_ALIAS, 0);
2468                 else
2469                     hda_opts = drive_add(optarg, HD_ALIAS
2470                              ",cyls=%d,heads=%d,secs=%d%s",
2471                              0, cyls, heads, secs,
2472                              translation == BIOS_ATA_TRANSLATION_LBA ?
2473                                  ",trans=lba" :
2474                              translation == BIOS_ATA_TRANSLATION_NONE ?
2475                                  ",trans=none" : "");
2476                  break;
2477             case QEMU_OPTION_hdb:
2478             case QEMU_OPTION_hdc:
2479             case QEMU_OPTION_hdd:
2480                 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2481                 break;
2482             case QEMU_OPTION_drive:
2483                 drive_add(NULL, "%s", optarg);
2484                 break;
2485             case QEMU_OPTION_set:
2486                 if (qemu_set_option(optarg) != 0)
2487                     exit(1);
2488                 break;
2489             case QEMU_OPTION_global:
2490                 if (qemu_global_option(optarg) != 0)
2491                     exit(1);
2492                 break;
2493             case QEMU_OPTION_mtdblock:
2494                 drive_add(optarg, MTD_ALIAS);
2495                 break;
2496             case QEMU_OPTION_sd:
2497                 drive_add(optarg, SD_ALIAS);
2498                 break;
2499             case QEMU_OPTION_pflash:
2500                 drive_add(optarg, PFLASH_ALIAS);
2501                 break;
2502             case QEMU_OPTION_snapshot:
2503                 snapshot = 1;
2504                 break;
2505             case QEMU_OPTION_hdachs:
2506                 {
2507                     const char *p;
2508                     p = optarg;
2509                     cyls = strtol(p, (char **)&p, 0);
2510                     if (cyls < 1 || cyls > 16383)
2511                         goto chs_fail;
2512                     if (*p != ',')
2513                         goto chs_fail;
2514                     p++;
2515                     heads = strtol(p, (char **)&p, 0);
2516                     if (heads < 1 || heads > 16)
2517                         goto chs_fail;
2518                     if (*p != ',')
2519                         goto chs_fail;
2520                     p++;
2521                     secs = strtol(p, (char **)&p, 0);
2522                     if (secs < 1 || secs > 63)
2523                         goto chs_fail;
2524                     if (*p == ',') {
2525                         p++;
2526                         if (!strcmp(p, "none"))
2527                             translation = BIOS_ATA_TRANSLATION_NONE;
2528                         else if (!strcmp(p, "lba"))
2529                             translation = BIOS_ATA_TRANSLATION_LBA;
2530                         else if (!strcmp(p, "auto"))
2531                             translation = BIOS_ATA_TRANSLATION_AUTO;
2532                         else
2533                             goto chs_fail;
2534                     } else if (*p != '\0') {
2535                     chs_fail:
2536                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2537                         exit(1);
2538                     }
2539                     if (hda_opts != NULL) {
2540                         char num[16];
2541                         snprintf(num, sizeof(num), "%d", cyls);
2542                         qemu_opt_set(hda_opts, "cyls", num);
2543                         snprintf(num, sizeof(num), "%d", heads);
2544                         qemu_opt_set(hda_opts, "heads", num);
2545                         snprintf(num, sizeof(num), "%d", secs);
2546                         qemu_opt_set(hda_opts, "secs", num);
2547                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2548                             qemu_opt_set(hda_opts, "trans", "lba");
2549                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2550                             qemu_opt_set(hda_opts, "trans", "none");
2551                     }
2552                 }
2553                 break;
2554             case QEMU_OPTION_numa:
2555                 if (nb_numa_nodes >= MAX_NODES) {
2556                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2557                     exit(1);
2558                 }
2559                 numa_add(optarg);
2560                 break;
2561             case QEMU_OPTION_nographic:
2562                 display_type = DT_NOGRAPHIC;
2563                 break;
2564 #ifdef CONFIG_CURSES
2565             case QEMU_OPTION_curses:
2566                 display_type = DT_CURSES;
2567                 break;
2568 #endif
2569             case QEMU_OPTION_portrait:
2570                 graphic_rotate = 1;
2571                 break;
2572             case QEMU_OPTION_kernel:
2573                 kernel_filename = optarg;
2574                 break;
2575             case QEMU_OPTION_append:
2576                 kernel_cmdline = optarg;
2577                 break;
2578             case QEMU_OPTION_cdrom:
2579                 drive_add(optarg, CDROM_ALIAS);
2580                 break;
2581             case QEMU_OPTION_boot:
2582                 {
2583                     static const char * const params[] = {
2584                         "order", "once", "menu", NULL
2585                     };
2586                     char buf[sizeof(boot_devices)];
2587                     char *standard_boot_devices;
2588                     int legacy = 0;
2589
2590                     if (!strchr(optarg, '=')) {
2591                         legacy = 1;
2592                         pstrcpy(buf, sizeof(buf), optarg);
2593                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2594                         fprintf(stderr,
2595                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2596                                 buf, optarg);
2597                         exit(1);
2598                     }
2599
2600                     if (legacy ||
2601                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2602                         validate_bootdevices(buf);
2603                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2604                     }
2605                     if (!legacy) {
2606                         if (get_param_value(buf, sizeof(buf),
2607                                             "once", optarg)) {
2608                             validate_bootdevices(buf);
2609                             standard_boot_devices = qemu_strdup(boot_devices);
2610                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2611                             qemu_register_reset(restore_boot_devices,
2612                                                 standard_boot_devices);
2613                         }
2614                         if (get_param_value(buf, sizeof(buf),
2615                                             "menu", optarg)) {
2616                             if (!strcmp(buf, "on")) {
2617                                 boot_menu = 1;
2618                             } else if (!strcmp(buf, "off")) {
2619                                 boot_menu = 0;
2620                             } else {
2621                                 fprintf(stderr,
2622                                         "qemu: invalid option value '%s'\n",
2623                                         buf);
2624                                 exit(1);
2625                             }
2626                         }
2627                     }
2628                 }
2629                 break;
2630             case QEMU_OPTION_fda:
2631             case QEMU_OPTION_fdb:
2632                 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2633                 break;
2634             case QEMU_OPTION_no_fd_bootchk:
2635                 fd_bootchk = 0;
2636                 break;
2637             case QEMU_OPTION_netdev:
2638                 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2639                     exit(1);
2640                 }
2641                 break;
2642             case QEMU_OPTION_net:
2643                 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2644                     exit(1);
2645                 }
2646                 break;
2647 #ifdef CONFIG_SLIRP
2648             case QEMU_OPTION_tftp:
2649                 legacy_tftp_prefix = optarg;
2650                 break;
2651             case QEMU_OPTION_bootp:
2652                 legacy_bootp_filename = optarg;
2653                 break;
2654             case QEMU_OPTION_redir:
2655                 if (net_slirp_redir(optarg) < 0)
2656                     exit(1);
2657                 break;
2658 #endif
2659             case QEMU_OPTION_bt:
2660                 add_device_config(DEV_BT, optarg);
2661                 break;
2662             case QEMU_OPTION_audio_help:
2663                 if (!(audio_available())) {
2664                     printf("Option %s not supported for this target\n", popt->name);
2665                     exit(1);
2666                 }
2667                 AUD_help ();
2668                 exit (0);
2669                 break;
2670             case QEMU_OPTION_soundhw:
2671                 if (!(audio_available())) {
2672                     printf("Option %s not supported for this target\n", popt->name);
2673                     exit(1);
2674                 }
2675                 select_soundhw (optarg);
2676                 break;
2677             case QEMU_OPTION_h:
2678                 help(0);
2679                 break;
2680             case QEMU_OPTION_version:
2681                 version();
2682                 exit(0);
2683                 break;
2684             case QEMU_OPTION_m: {
2685                 uint64_t value;
2686                 char *ptr;
2687
2688                 value = strtoul(optarg, &ptr, 10);
2689                 switch (*ptr) {
2690                 case 0: case 'M': case 'm':
2691                     value <<= 20;
2692                     break;
2693                 case 'G': case 'g':
2694                     value <<= 30;
2695                     break;
2696                 default:
2697                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2698                     exit(1);
2699                 }
2700
2701                 /* On 32-bit hosts, QEMU is limited by virtual address space */
2702                 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2703                     fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2704                     exit(1);
2705                 }
2706                 if (value != (uint64_t)(ram_addr_t)value) {
2707                     fprintf(stderr, "qemu: ram size too large\n");
2708                     exit(1);
2709                 }
2710                 ram_size = value;
2711                 break;
2712             }
2713             case QEMU_OPTION_mempath:
2714                 mem_path = optarg;
2715                 break;
2716 #ifdef MAP_POPULATE
2717             case QEMU_OPTION_mem_prealloc:
2718                 mem_prealloc = 1;
2719                 break;
2720 #endif
2721             case QEMU_OPTION_d:
2722                 set_cpu_log(optarg);
2723                 break;
2724             case QEMU_OPTION_s:
2725                 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2726                 break;
2727             case QEMU_OPTION_gdb:
2728                 gdbstub_dev = optarg;
2729                 break;
2730             case QEMU_OPTION_L:
2731                 data_dir = optarg;
2732                 break;
2733             case QEMU_OPTION_bios:
2734                 bios_name = optarg;
2735                 break;
2736             case QEMU_OPTION_singlestep:
2737                 singlestep = 1;
2738                 break;
2739             case QEMU_OPTION_S:
2740                 autostart = 0;
2741                 break;
2742             case QEMU_OPTION_k:
2743                 keyboard_layout = optarg;
2744                 break;
2745             case QEMU_OPTION_localtime:
2746                 rtc_utc = 0;
2747                 break;
2748             case QEMU_OPTION_vga:
2749                 select_vgahw (optarg);
2750                 break;
2751             case QEMU_OPTION_g:
2752                 {
2753                     const char *p;
2754                     int w, h, depth;
2755                     p = optarg;
2756                     w = strtol(p, (char **)&p, 10);
2757                     if (w <= 0) {
2758                     graphic_error:
2759                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2760                         exit(1);
2761                     }
2762                     if (*p != 'x')
2763                         goto graphic_error;
2764                     p++;
2765                     h = strtol(p, (char **)&p, 10);
2766                     if (h <= 0)
2767                         goto graphic_error;
2768                     if (*p == 'x') {
2769                         p++;
2770                         depth = strtol(p, (char **)&p, 10);
2771                         if (depth != 8 && depth != 15 && depth != 16 &&
2772                             depth != 24 && depth != 32)
2773                             goto graphic_error;
2774                     } else if (*p == '\0') {
2775                         depth = graphic_depth;
2776                     } else {
2777                         goto graphic_error;
2778                     }
2779
2780                     graphic_width = w;
2781                     graphic_height = h;
2782                     graphic_depth = depth;
2783                 }
2784                 break;
2785             case QEMU_OPTION_echr:
2786                 {
2787                     char *r;
2788                     term_escape_char = strtol(optarg, &r, 0);
2789                     if (r == optarg)
2790                         printf("Bad argument to echr\n");
2791                     break;
2792                 }
2793             case QEMU_OPTION_monitor:
2794                 monitor_parse(optarg, "readline");
2795                 default_monitor = 0;
2796                 break;
2797             case QEMU_OPTION_qmp:
2798                 monitor_parse(optarg, "control");
2799                 default_monitor = 0;
2800                 break;
2801             case QEMU_OPTION_mon:
2802                 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
2803                 if (!opts) {
2804                     exit(1);
2805                 }
2806                 default_monitor = 0;
2807                 break;
2808             case QEMU_OPTION_chardev:
2809                 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
2810                 if (!opts) {
2811                     exit(1);
2812                 }
2813                 break;
2814 #ifdef CONFIG_LINUX
2815             case QEMU_OPTION_fsdev:
2816                 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
2817                 if (!opts) {
2818                     fprintf(stderr, "parse error: %s\n", optarg);
2819                     exit(1);
2820                 }
2821                 break;
2822             case QEMU_OPTION_virtfs: {
2823                 char *arg_fsdev = NULL;
2824                 char *arg_9p = NULL;
2825                 int len = 0;
2826
2827                 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
2828                 if (!opts) {
2829                     fprintf(stderr, "parse error: %s\n", optarg);
2830                     exit(1);
2831                 }
2832
2833                 len = strlen(",id=,path=");
2834                 len += strlen(qemu_opt_get(opts, "fstype"));
2835                 len += strlen(qemu_opt_get(opts, "mount_tag"));
2836                 len += strlen(qemu_opt_get(opts, "path"));
2837                 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
2838
2839                 if (!arg_fsdev) {
2840                     fprintf(stderr, "No memory to parse -fsdev for %s\n",
2841                             optarg);
2842                     exit(1);
2843                 }
2844
2845                 sprintf(arg_fsdev, "%s,id=%s,path=%s",
2846                                 qemu_opt_get(opts, "fstype"),
2847                                 qemu_opt_get(opts, "mount_tag"),
2848                                 qemu_opt_get(opts, "path"));
2849
2850                 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
2851                 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
2852                 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
2853
2854                 if (!arg_9p) {
2855                     fprintf(stderr, "No memory to parse -device for %s\n",
2856                             optarg);
2857                     exit(1);
2858                 }
2859
2860                 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
2861                                 qemu_opt_get(opts, "mount_tag"),
2862                                 qemu_opt_get(opts, "mount_tag"));
2863
2864                 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
2865                     fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
2866                     exit(1);
2867                 }
2868
2869                 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
2870                     fprintf(stderr, "parse error [device]: %s\n", optarg);
2871                     exit(1);
2872                 }
2873
2874                 qemu_free(arg_fsdev);
2875                 qemu_free(arg_9p);
2876                 break;
2877             }
2878 #endif
2879             case QEMU_OPTION_serial:
2880                 add_device_config(DEV_SERIAL, optarg);
2881                 default_serial = 0;
2882                 if (strncmp(optarg, "mon:", 4) == 0) {
2883                     default_monitor = 0;
2884                 }
2885                 break;
2886             case QEMU_OPTION_watchdog:
2887                 if (watchdog) {
2888                     fprintf(stderr,
2889                             "qemu: only one watchdog option may be given\n");
2890                     return 1;
2891                 }
2892                 watchdog = optarg;
2893                 break;
2894             case QEMU_OPTION_watchdog_action:
2895                 if (select_watchdog_action(optarg) == -1) {
2896                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
2897                     exit(1);
2898                 }
2899                 break;
2900             case QEMU_OPTION_virtiocon:
2901                 add_device_config(DEV_VIRTCON, optarg);
2902                 default_virtcon = 0;
2903                 if (strncmp(optarg, "mon:", 4) == 0) {
2904                     default_monitor = 0;
2905                 }
2906                 break;
2907             case QEMU_OPTION_parallel:
2908                 add_device_config(DEV_PARALLEL, optarg);
2909                 default_parallel = 0;
2910                 if (strncmp(optarg, "mon:", 4) == 0) {
2911                     default_monitor = 0;
2912                 }
2913                 break;
2914             case QEMU_OPTION_debugcon:
2915                 add_device_config(DEV_DEBUGCON, optarg);
2916                 break;
2917             case QEMU_OPTION_loadvm:
2918                 loadvm = optarg;
2919                 break;
2920             case QEMU_OPTION_full_screen:
2921                 full_screen = 1;
2922                 break;
2923 #ifdef CONFIG_SDL
2924             case QEMU_OPTION_no_frame:
2925                 no_frame = 1;
2926                 break;
2927             case QEMU_OPTION_alt_grab:
2928                 alt_grab = 1;
2929                 break;
2930             case QEMU_OPTION_ctrl_grab:
2931                 ctrl_grab = 1;
2932                 break;
2933             case QEMU_OPTION_no_quit:
2934                 no_quit = 1;
2935                 break;
2936             case QEMU_OPTION_sdl:
2937                 display_type = DT_SDL;
2938                 break;
2939 #endif
2940             case QEMU_OPTION_pidfile:
2941                 pid_file = optarg;
2942                 break;
2943             case QEMU_OPTION_win2k_hack:
2944                 win2k_install_hack = 1;
2945                 break;
2946             case QEMU_OPTION_rtc_td_hack:
2947                 rtc_td_hack = 1;
2948                 break;
2949             case QEMU_OPTION_acpitable:
2950                 do_acpitable_option(optarg);
2951                 break;
2952             case QEMU_OPTION_smbios:
2953                 do_smbios_option(optarg);
2954                 break;
2955 #ifdef KVM_UPSTREAM
2956             case QEMU_OPTION_enable_kvm:
2957                 kvm_allowed = 1;
2958 #endif
2959                 break;
2960             case QEMU_OPTION_no_kvm:
2961                 kvm_allowed = 0;
2962                 break;
2963             case QEMU_OPTION_no_kvm_irqchip: {
2964                 kvm_irqchip = 0;
2965                 kvm_pit = 0;
2966                 break;
2967             }
2968             case QEMU_OPTION_no_kvm_pit: {
2969                 kvm_pit = 0;
2970                 break;
2971             }
2972             case QEMU_OPTION_no_kvm_pit_reinjection: {
2973                 kvm_pit_reinject = 0;
2974                 break;
2975             }
2976             case QEMU_OPTION_enable_nesting: {
2977                 kvm_nested = 1;
2978                 break;
2979             }
2980 #if defined(TARGET_I386) || defined(TARGET_X86_64) || defined(TARGET_IA64) || defined(__linux__)
2981             case QEMU_OPTION_pcidevice:
2982                 if (assigned_devices_index >= MAX_DEV_ASSIGN_CMDLINE) {
2983                     fprintf(stderr, "Too many assigned devices\n");
2984                     exit(1);
2985                 }
2986                 assigned_devices[assigned_devices_index] = optarg;
2987                 assigned_devices_index++;
2988                 break;
2989 #endif
2990             case QEMU_OPTION_usb:
2991                 usb_enabled = 1;
2992                 break;
2993             case QEMU_OPTION_usbdevice:
2994                 usb_enabled = 1;
2995                 add_device_config(DEV_USB, optarg);
2996                 break;
2997             case QEMU_OPTION_device:
2998                 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
2999                     exit(1);
3000                 }
3001                 break;
3002             case QEMU_OPTION_smp:
3003                 smp_parse(optarg);
3004                 if (smp_cpus < 1) {
3005                     fprintf(stderr, "Invalid number of CPUs\n");
3006                     exit(1);
3007                 }
3008                 if (max_cpus < smp_cpus) {
3009                     fprintf(stderr, "maxcpus must be equal to or greater than "
3010                             "smp\n");
3011                     exit(1);
3012                 }
3013                 if (max_cpus > 255) {
3014                     fprintf(stderr, "Unsupported number of maxcpus\n");
3015                     exit(1);
3016                 }
3017                 break;
3018             case QEMU_OPTION_vnc:
3019                 display_type = DT_VNC;
3020                 vnc_display = optarg;
3021                 break;
3022             case QEMU_OPTION_no_acpi:
3023                 acpi_enabled = 0;
3024                 break;
3025             case QEMU_OPTION_no_hpet:
3026                 no_hpet = 1;
3027                 break;
3028             case QEMU_OPTION_balloon:
3029                 if (balloon_parse(optarg) < 0) {
3030                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3031                     exit(1);
3032                 }
3033                 break;
3034             case QEMU_OPTION_no_reboot:
3035                 no_reboot = 1;
3036                 break;
3037             case QEMU_OPTION_no_shutdown:
3038                 no_shutdown = 1;
3039                 break;
3040             case QEMU_OPTION_show_cursor:
3041                 cursor_hide = 0;
3042                 break;
3043             case QEMU_OPTION_uuid:
3044                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3045                     fprintf(stderr, "Fail to parse UUID string."
3046                             " Wrong format.\n");
3047                     exit(1);
3048                 }
3049                 break;
3050 #ifndef _WIN32
3051             case QEMU_OPTION_daemonize:
3052                 daemonize = 1;
3053                 break;
3054 #endif
3055             case QEMU_OPTION_option_rom:
3056                 if (nb_option_roms >= MAX_OPTION_ROMS) {
3057                     fprintf(stderr, "Too many option ROMs\n");
3058                     exit(1);
3059                 }
3060                 option_rom[nb_option_roms] = optarg;
3061                 nb_option_roms++;
3062                 break;
3063             case QEMU_OPTION_semihosting:
3064                 semihosting_enabled = 1;
3065                 break;
3066             case QEMU_OPTION_tdf:
3067                 time_drift_fix = 1;
3068                 break;
3069             case QEMU_OPTION_kvm_shadow_memory:
3070                 kvm_shadow_memory = (int64_t)atoi(optarg) * 1024 * 1024 / 4096;
3071                 break;
3072             case QEMU_OPTION_name:
3073                 qemu_name = qemu_strdup(optarg);
3074                  {
3075                      char *p = strchr(qemu_name, ',');
3076                      if (p != NULL) {
3077                         *p++ = 0;
3078                         if (strncmp(p, "process=", 8)) {
3079                             fprintf(stderr, "Unknown subargument %s to -name", p);
3080                             exit(1);
3081                         }
3082                         p += 8;
3083                         set_proc_name(p);
3084                      }
3085                  }
3086                 break;
3087             case QEMU_OPTION_prom_env:
3088                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3089                     fprintf(stderr, "Too many prom variables\n");
3090                     exit(1);
3091                 }
3092                 prom_envs[nb_prom_envs] = optarg;
3093                 nb_prom_envs++;
3094                 break;
3095             case QEMU_OPTION_old_param:
3096                 old_param = 1;
3097                 break;
3098             case QEMU_OPTION_clock:
3099                 configure_alarms(optarg);
3100                 break;
3101             case QEMU_OPTION_startdate:
3102                 configure_rtc_date_offset(optarg, 1);
3103                 break;
3104             case QEMU_OPTION_rtc:
3105                 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3106                 if (!opts) {
3107                     exit(1);
3108                 }
3109                 configure_rtc(opts);
3110                 break;
3111             case QEMU_OPTION_tb_size:
3112                 tb_size = strtol(optarg, NULL, 0);
3113                 if (tb_size < 0)
3114                     tb_size = 0;
3115                 break;
3116             case QEMU_OPTION_icount:
3117                 icount_option = optarg;
3118                 break;
3119             case QEMU_OPTION_incoming:
3120                 incoming = optarg;
3121                 break;
3122             case QEMU_OPTION_nodefaults:
3123                 default_serial = 0;
3124                 default_parallel = 0;
3125                 default_virtcon = 0;
3126                 default_monitor = 0;
3127                 default_vga = 0;
3128                 default_net = 0;
3129                 default_floppy = 0;
3130                 default_cdrom = 0;
3131                 default_sdcard = 0;
3132                 break;
3133 #ifndef _WIN32
3134             case QEMU_OPTION_nvram:
3135                 nvram = optarg;
3136                 break;
3137 #endif
3138             case QEMU_OPTION_xen_domid:
3139                 if (!(xen_available())) {
3140                     printf("Option %s not supported for this target\n", popt->name);
3141                     exit(1);
3142                 }
3143                 xen_domid = atoi(optarg);
3144                 break;
3145             case QEMU_OPTION_xen_create:
3146                 if (!(xen_available())) {
3147                     printf("Option %s not supported for this target\n", popt->name);
3148                     exit(1);
3149                 }
3150                 xen_mode = XEN_CREATE;
3151                 break;
3152             case QEMU_OPTION_xen_attach:
3153                 if (!(xen_available())) {
3154                     printf("Option %s not supported for this target\n", popt->name);
3155                     exit(1);
3156                 }
3157                 xen_mode = XEN_ATTACH;
3158                 break;
3159             case QEMU_OPTION_readconfig:
3160                 {
3161                     int ret = qemu_read_config_file(optarg);
3162                     if (ret < 0) {
3163                         fprintf(stderr, "read config %s: %s\n", optarg,
3164                             strerror(-ret));
3165                         exit(1);
3166                     }
3167                     break;
3168                 }
3169             case QEMU_OPTION_writeconfig:
3170                 {
3171                     FILE *fp;
3172                     if (strcmp(optarg, "-") == 0) {
3173                         fp = stdout;
3174                     } else {
3175                         fp = fopen(optarg, "w");
3176                         if (fp == NULL) {
3177                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3178                             exit(1);
3179                         }
3180                     }
3181                     qemu_config_write(fp);
3182                     fclose(fp);
3183                     break;
3184                 }
3185             default:
3186                 os_parse_cmd_args(popt->index, optarg);
3187             }
3188         }
3189     }
3190     loc_set_none();
3191
3192     /* If no data_dir is specified then try to find it relative to the
3193        executable path.  */
3194     if (!data_dir) {
3195         data_dir = os_find_datadir(argv[0]);
3196     }
3197     /* If all else fails use the install patch specified when building.  */
3198     if (!data_dir) {
3199         data_dir = CONFIG_QEMU_DATADIR;
3200     }
3201
3202     /*
3203      * Default to max_cpus = smp_cpus, in case the user doesn't
3204      * specify a max_cpus value.
3205      */
3206     if (!max_cpus)
3207         max_cpus = smp_cpus;
3208
3209     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3210     if (smp_cpus > machine->max_cpus) {
3211         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3212                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3213                 machine->max_cpus);
3214         exit(1);
3215     }
3216
3217     qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3218     qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3219
3220     if (machine->no_serial) {
3221         default_serial = 0;
3222     }
3223     if (machine->no_parallel) {
3224         default_parallel = 0;
3225     }
3226     if (!machine->use_virtcon) {
3227         default_virtcon = 0;
3228     }
3229     if (machine->no_vga) {
3230         default_vga = 0;
3231     }
3232     if (machine->no_floppy) {
3233         default_floppy = 0;
3234     }
3235     if (machine->no_cdrom) {
3236         default_cdrom = 0;
3237     }
3238     if (machine->no_sdcard) {
3239         default_sdcard = 0;
3240     }
3241
3242     if (display_type == DT_NOGRAPHIC) {
3243         if (default_parallel)
3244             add_device_config(DEV_PARALLEL, "null");
3245         if (default_serial && default_monitor) {
3246             add_device_config(DEV_SERIAL, "mon:stdio");
3247         } else if (default_virtcon && default_monitor) {
3248             add_device_config(DEV_VIRTCON, "mon:stdio");
3249         } else {
3250             if (default_serial)
3251                 add_device_config(DEV_SERIAL, "stdio");
3252             if (default_virtcon)
3253                 add_device_config(DEV_VIRTCON, "stdio");
3254             if (default_monitor)
3255                 monitor_parse("stdio", "readline");
3256         }
3257     } else {
3258         if (default_serial)
3259             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3260         if (default_parallel)
3261             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3262         if (default_monitor)
3263             monitor_parse("vc:80Cx24C", "readline");
3264         if (default_virtcon)
3265             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3266     }
3267     if (default_vga)
3268         vga_interface_type = VGA_CIRRUS;
3269
3270     socket_init();
3271
3272     if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3273         exit(1);
3274 #ifdef CONFIG_LINUX
3275     if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3276         exit(1);
3277     }
3278 #endif
3279
3280 #ifndef _WIN32
3281     if (daemonize) {
3282         pid_t pid;
3283
3284         if (pipe(fds) == -1)
3285             exit(1);
3286
3287         pid = fork();
3288         if (pid > 0) {
3289             uint8_t status;
3290             ssize_t len;
3291
3292             close(fds[1]);
3293
3294         again:
3295             len = read(fds[0], &status, 1);
3296             if (len == -1 && (errno == EINTR))
3297                 goto again;
3298
3299             if (len != 1)
3300                 exit(1);
3301             else if (status == 1) {
3302                 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3303                 exit(1);
3304             } else
3305                 exit(0);
3306         } else if (pid < 0)
3307             exit(1);
3308
3309         close(fds[0]);
3310         qemu_set_cloexec(fds[1]);
3311
3312         setsid();
3313
3314         pid = fork();
3315         if (pid > 0)
3316             exit(0);
3317         else if (pid < 0)
3318             exit(1);
3319
3320         umask(027);
3321
3322         signal(SIGTSTP, SIG_IGN);
3323         signal(SIGTTOU, SIG_IGN);
3324         signal(SIGTTIN, SIG_IGN);
3325     }
3326 #endif
3327
3328     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3329 #ifndef _WIN32
3330         if (daemonize) {
3331             uint8_t status = 1;
3332             if (write(fds[1], &status, 1) != 1) {
3333                 perror("daemonize. Writing to pipe\n");
3334             }
3335         } else
3336 #endif
3337             fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3338         exit(1);
3339     }
3340
3341     if (kvm_allowed) {
3342         int ret = kvm_init(smp_cpus);
3343         if (ret < 0) {
3344 #if defined(KVM_UPSTREAM) || defined(CONFIG_NO_CPU_EMULATION)
3345             if (!kvm_available()) {
3346                 printf("KVM not supported for this target\n");
3347             } else {
3348                 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3349             }
3350             exit(1);
3351 #endif
3352 #ifdef CONFIG_KVM
3353             fprintf(stderr, "Could not initialize KVM, will disable KVM support\n");
3354             kvm_allowed = 0;
3355 #endif
3356         }
3357     }
3358
3359     if (qemu_init_main_loop()) {
3360         fprintf(stderr, "qemu_init_main_loop failed\n");
3361         exit(1);
3362     }
3363     linux_boot = (kernel_filename != NULL);
3364
3365     if (!linux_boot && *kernel_cmdline != '\0') {
3366         fprintf(stderr, "-append only allowed with -kernel option\n");
3367         exit(1);
3368     }
3369
3370     if (!linux_boot && initrd_filename != NULL) {
3371         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3372         exit(1);
3373     }
3374
3375 #ifndef _WIN32
3376     /* Win32 doesn't support line-buffering and requires size >= 2 */
3377     setvbuf(stdout, NULL, _IOLBF, 0);
3378 #endif
3379
3380     if (init_timer_alarm() < 0) {
3381         fprintf(stderr, "could not initialize alarm timer\n");
3382         exit(1);
3383     }
3384     configure_icount(icount_option);
3385
3386     if (net_init_clients() < 0) {
3387         exit(1);
3388     }
3389
3390     /* init the bluetooth world */
3391     if (foreach_device_config(DEV_BT, bt_parse))
3392         exit(1);
3393
3394     /* init the memory */
3395     if (ram_size == 0)
3396         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3397
3398     /* init the dynamic translator */
3399     cpu_exec_init_all(tb_size * 1024 * 1024);
3400
3401     bdrv_init_with_whitelist();
3402
3403     blk_mig_init();
3404
3405     if (default_cdrom) {
3406         /* we always create the cdrom drive, even if no disk is there */
3407         drive_add(NULL, CDROM_ALIAS);
3408     }
3409
3410     if (default_floppy) {
3411         /* we always create at least one floppy */
3412         drive_add(NULL, FD_ALIAS, 0);
3413     }
3414
3415     if (default_sdcard) {
3416         /* we always create one sd slot, even if no card is in it */
3417         drive_add(NULL, SD_ALIAS);
3418     }
3419
3420     /* open the virtual block devices */
3421     if (snapshot)
3422         qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3423     if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3424         exit(1);
3425
3426     register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3427                          ram_load, NULL);
3428
3429     if (nb_numa_nodes > 0) {
3430         int i;
3431
3432         if (nb_numa_nodes > smp_cpus) {
3433             nb_numa_nodes = smp_cpus;
3434         }
3435
3436         /* If no memory size if given for any node, assume the default case
3437          * and distribute the available memory equally across all nodes
3438          */
3439         for (i = 0; i < nb_numa_nodes; i++) {
3440             if (node_mem[i] != 0)
3441                 break;
3442         }
3443         if (i == nb_numa_nodes) {
3444             uint64_t usedmem = 0;
3445
3446             /* On Linux, the each node's border has to be 8MB aligned,
3447              * the final node gets the rest.
3448              */
3449             for (i = 0; i < nb_numa_nodes - 1; i++) {
3450                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3451                 usedmem += node_mem[i];
3452             }
3453             node_mem[i] = ram_size - usedmem;
3454         }
3455
3456         for (i = 0; i < nb_numa_nodes; i++) {
3457             if (node_cpumask[i] != 0)
3458                 break;
3459         }
3460         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3461          * must cope with this anyway, because there are BIOSes out there in
3462          * real machines which also use this scheme.
3463          */
3464         if (i == nb_numa_nodes) {
3465             for (i = 0; i < smp_cpus; i++) {
3466                 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3467             }
3468         }
3469     }
3470
3471     if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3472         exit(1);
3473     }
3474
3475     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3476         exit(1);
3477     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3478         exit(1);
3479     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3480         exit(1);
3481     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3482         exit(1);
3483
3484     module_call_init(MODULE_INIT_DEVICE);
3485
3486     if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3487         exit(0);
3488
3489     if (watchdog) {
3490         i = select_watchdog(watchdog);
3491         if (i > 0)
3492             exit (i == 1 ? 1 : 0);
3493     }
3494
3495     if (machine->compat_props) {
3496         qdev_prop_register_global_list(machine->compat_props);
3497     }
3498     qemu_add_globals();
3499
3500     machine->init(ram_size, boot_devices,
3501                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3502
3503     cpu_synchronize_all_post_init();
3504
3505     /* must be after terminal init, SDL library changes signal handlers */
3506     os_setup_signal_handling();
3507
3508     set_numa_modes();
3509
3510     current_machine = machine;
3511
3512     /* init USB devices */
3513     if (usb_enabled) {
3514         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3515             exit(1);
3516     }
3517
3518     /* init generic devices */
3519     if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3520         exit(1);
3521
3522     net_check_clients();
3523
3524     /* just use the first displaystate for the moment */
3525     ds = get_displaystate();
3526
3527     if (display_type == DT_DEFAULT) {
3528 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3529         display_type = DT_SDL;
3530 #else
3531         display_type = DT_VNC;
3532         vnc_display = "localhost:0,to=99";
3533         show_vnc_port = 1;
3534 #endif
3535     }
3536
3537
3538     switch (display_type) {
3539     case DT_NOGRAPHIC:
3540         break;
3541 #if defined(CONFIG_CURSES)
3542     case DT_CURSES:
3543         curses_display_init(ds, full_screen);
3544         break;
3545 #endif
3546 #if defined(CONFIG_SDL)
3547     case DT_SDL:
3548         sdl_display_init(ds, full_screen, no_frame);
3549         break;
3550 #elif defined(CONFIG_COCOA)
3551     case DT_SDL:
3552         cocoa_display_init(ds, full_screen);
3553         break;
3554 #endif
3555     case DT_VNC:
3556         vnc_display_init(ds);
3557         if (vnc_display_open(ds, vnc_display) < 0)
3558             exit(1);
3559
3560         if (show_vnc_port) {
3561             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3562         }
3563         break;
3564     default:
3565         break;
3566     }
3567     dpy_resize(ds);
3568
3569     dcl = ds->listeners;
3570     while (dcl != NULL) {
3571         if (dcl->dpy_refresh != NULL) {
3572             ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3573             qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3574             break;
3575         }
3576         dcl = dcl->next;
3577     }
3578
3579     if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3580         nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3581         qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3582     }
3583
3584     text_consoles_set_display(ds);
3585
3586     if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3587         fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3588                 gdbstub_dev);
3589         exit(1);
3590     }
3591
3592     qdev_machine_creation_done();
3593
3594     if (rom_load_all() != 0) {
3595         fprintf(stderr, "rom loading failed\n");
3596         exit(1);
3597     }
3598
3599     qemu_system_reset();
3600     if (loadvm) {
3601         if (load_vmstate(loadvm) < 0) {
3602             autostart = 0;
3603         }
3604     }
3605
3606     if (incoming) {
3607         qemu_start_incoming_migration(incoming);
3608     } else if (autostart) {
3609         vm_start();
3610     }
3611
3612 #ifndef _WIN32
3613     if (daemonize) {
3614         uint8_t status = 0;
3615         ssize_t len;
3616
3617     again1:
3618         len = write(fds[1], &status, 1);
3619         if (len == -1 && (errno == EINTR))
3620             goto again1;
3621
3622         if (len != 1)
3623             exit(1);
3624
3625         if (chdir("/")) {
3626             perror("not able to chdir to /");
3627             exit(1);
3628         }
3629         TFR(fd = qemu_open("/dev/null", O_RDWR));
3630         if (fd == -1)
3631             exit(1);
3632     }
3633
3634     os_change_root();
3635     os_change_process_uid();
3636
3637     if (daemonize) {
3638         dup2(fd, 0);
3639         dup2(fd, 1);
3640         dup2(fd, 2);
3641
3642         close(fd);
3643     }
3644 #endif
3645
3646     main_loop();
3647     quit_timers();
3648     net_cleanup();
3649
3650     return 0;
3651 }