Remove FORCE_RET() and RETURN()
[qemu/mini2440/sniper_sniper_test.git] / vl.c
blob00adb79978c7c0a595771d10350823c41a9b0acf
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include "hw/hw.h"
25 #include "hw/boards.h"
26 #include "hw/usb.h"
27 #include "hw/pcmcia.h"
28 #include "hw/pc.h"
29 #include "hw/audiodev.h"
30 #include "hw/isa.h"
31 #include "hw/baum.h"
32 #include "hw/bt.h"
33 #include "net.h"
34 #include "console.h"
35 #include "sysemu.h"
36 #include "gdbstub.h"
37 #include "qemu-timer.h"
38 #include "qemu-char.h"
39 #include "block.h"
40 #include "audio/audio.h"
41 #include "migration.h"
42 #include "kvm.h"
43 #include "balloon.h"
45 #include <unistd.h>
46 #include <fcntl.h>
47 #include <signal.h>
48 #include <time.h>
49 #include <errno.h>
50 #include <sys/time.h>
51 #include <zlib.h>
53 #ifndef _WIN32
54 #include <sys/times.h>
55 #include <sys/wait.h>
56 #include <termios.h>
57 #include <sys/mman.h>
58 #include <sys/ioctl.h>
59 #include <sys/resource.h>
60 #include <sys/socket.h>
61 #include <netinet/in.h>
62 #include <net/if.h>
63 #if defined(__NetBSD__)
64 #include <net/if_tap.h>
65 #endif
66 #ifdef __linux__
67 #include <linux/if_tun.h>
68 #endif
69 #include <arpa/inet.h>
70 #include <dirent.h>
71 #include <netdb.h>
72 #include <sys/select.h>
73 #ifdef _BSD
74 #include <sys/stat.h>
75 #ifdef __FreeBSD__
76 #include <libutil.h>
77 #else
78 #include <util.h>
79 #endif
80 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
81 #include <freebsd/stdlib.h>
82 #else
83 #ifdef __linux__
84 #include <pty.h>
85 #include <malloc.h>
86 #include <linux/rtc.h>
88 /* For the benefit of older linux systems which don't supply it,
89 we use a local copy of hpet.h. */
90 /* #include <linux/hpet.h> */
91 #include "hpet.h"
93 #include <linux/ppdev.h>
94 #include <linux/parport.h>
95 #endif
96 #ifdef __sun__
97 #include <sys/stat.h>
98 #include <sys/ethernet.h>
99 #include <sys/sockio.h>
100 #include <netinet/arp.h>
101 #include <netinet/in.h>
102 #include <netinet/in_systm.h>
103 #include <netinet/ip.h>
104 #include <netinet/ip_icmp.h> // must come after ip.h
105 #include <netinet/udp.h>
106 #include <netinet/tcp.h>
107 #include <net/if.h>
108 #include <syslog.h>
109 #include <stropts.h>
110 #endif
111 #endif
112 #endif
114 #include "qemu_socket.h"
116 #if defined(CONFIG_SLIRP)
117 #include "libslirp.h"
118 #endif
120 #if defined(__OpenBSD__)
121 #include <util.h>
122 #endif
124 #if defined(CONFIG_VDE)
125 #include <libvdeplug.h>
126 #endif
128 #ifdef _WIN32
129 #include <malloc.h>
130 #include <sys/timeb.h>
131 #include <mmsystem.h>
132 #define getopt_long_only getopt_long
133 #define memalign(align, size) malloc(size)
134 #endif
136 #ifdef CONFIG_SDL
137 #ifdef __APPLE__
138 #include <SDL/SDL.h>
139 #endif
140 #endif /* CONFIG_SDL */
142 #ifdef CONFIG_COCOA
143 #undef main
144 #define main qemu_main
145 #endif /* CONFIG_COCOA */
147 #include "disas.h"
149 #include "exec-all.h"
151 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
152 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
153 #ifdef __sun__
154 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
155 #else
156 #define SMBD_COMMAND "/usr/sbin/smbd"
157 #endif
159 //#define DEBUG_UNUSED_IOPORT
160 //#define DEBUG_IOPORT
161 //#define DEBUG_NET
162 //#define DEBUG_SLIRP
164 #ifdef TARGET_PPC
165 #define DEFAULT_RAM_SIZE 144
166 #else
167 #define DEFAULT_RAM_SIZE 128
168 #endif
170 /* Max number of USB devices that can be specified on the commandline. */
171 #define MAX_USB_CMDLINE 8
173 /* Max number of bluetooth switches on the commandline. */
174 #define MAX_BT_CMDLINE 10
176 /* XXX: use a two level table to limit memory usage */
177 #define MAX_IOPORTS 65536
179 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
180 const char *bios_name = NULL;
181 static void *ioport_opaque[MAX_IOPORTS];
182 static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
183 static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
184 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
185 to store the VM snapshots */
186 DriveInfo drives_table[MAX_DRIVES+1];
187 int nb_drives;
188 static int vga_ram_size;
189 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
190 DisplayState display_state;
191 int nographic;
192 static int curses;
193 const char* keyboard_layout = NULL;
194 int64_t ticks_per_sec;
195 ram_addr_t ram_size;
196 int nb_nics;
197 NICInfo nd_table[MAX_NICS];
198 int vm_running;
199 static int rtc_utc = 1;
200 static int rtc_date_offset = -1; /* -1 means no change */
201 int cirrus_vga_enabled = 1;
202 int vmsvga_enabled = 0;
203 #ifdef TARGET_SPARC
204 int graphic_width = 1024;
205 int graphic_height = 768;
206 int graphic_depth = 8;
207 #else
208 int graphic_width = 800;
209 int graphic_height = 600;
210 int graphic_depth = 15;
211 #endif
212 static int full_screen = 0;
213 #ifdef CONFIG_SDL
214 static int no_frame = 0;
215 #endif
216 int no_quit = 0;
217 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
218 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
219 #ifdef TARGET_I386
220 int win2k_install_hack = 0;
221 #endif
222 int usb_enabled = 0;
223 int smp_cpus = 1;
224 const char *vnc_display;
225 int acpi_enabled = 1;
226 int fd_bootchk = 1;
227 int no_reboot = 0;
228 int no_shutdown = 0;
229 int cursor_hide = 1;
230 int graphic_rotate = 0;
231 int daemonize = 0;
232 const char *option_rom[MAX_OPTION_ROMS];
233 int nb_option_roms;
234 int semihosting_enabled = 0;
235 #ifdef TARGET_ARM
236 int old_param = 0;
237 #endif
238 const char *qemu_name;
239 int alt_grab = 0;
240 #ifdef TARGET_SPARC
241 unsigned int nb_prom_envs = 0;
242 const char *prom_envs[MAX_PROM_ENVS];
243 #endif
244 static int nb_drives_opt;
245 static struct drive_opt {
246 const char *file;
247 char opt[1024];
248 } drives_opt[MAX_DRIVES];
250 static CPUState *cur_cpu;
251 static CPUState *next_cpu;
252 static int event_pending = 1;
253 /* Conversion factor from emulated instructions to virtual clock ticks. */
254 static int icount_time_shift;
255 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
256 #define MAX_ICOUNT_SHIFT 10
257 /* Compensate for varying guest execution speed. */
258 static int64_t qemu_icount_bias;
259 static QEMUTimer *icount_rt_timer;
260 static QEMUTimer *icount_vm_timer;
262 uint8_t qemu_uuid[16];
264 /***********************************************************/
265 /* x86 ISA bus support */
267 target_phys_addr_t isa_mem_base = 0;
268 PicState2 *isa_pic;
270 static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
271 static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
273 static uint32_t ioport_read(int index, uint32_t address)
275 static IOPortReadFunc *default_func[3] = {
276 default_ioport_readb,
277 default_ioport_readw,
278 default_ioport_readl
280 IOPortReadFunc *func = ioport_read_table[index][address];
281 if (!func)
282 func = default_func[index];
283 return func(ioport_opaque[address], address);
286 static void ioport_write(int index, uint32_t address, uint32_t data)
288 static IOPortWriteFunc *default_func[3] = {
289 default_ioport_writeb,
290 default_ioport_writew,
291 default_ioport_writel
293 IOPortWriteFunc *func = ioport_write_table[index][address];
294 if (!func)
295 func = default_func[index];
296 func(ioport_opaque[address], address, data);
299 static uint32_t default_ioport_readb(void *opaque, uint32_t address)
301 #ifdef DEBUG_UNUSED_IOPORT
302 fprintf(stderr, "unused inb: port=0x%04x\n", address);
303 #endif
304 return 0xff;
307 static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
309 #ifdef DEBUG_UNUSED_IOPORT
310 fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
311 #endif
314 /* default is to make two byte accesses */
315 static uint32_t default_ioport_readw(void *opaque, uint32_t address)
317 uint32_t data;
318 data = ioport_read(0, address);
319 address = (address + 1) & (MAX_IOPORTS - 1);
320 data |= ioport_read(0, address) << 8;
321 return data;
324 static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
326 ioport_write(0, address, data & 0xff);
327 address = (address + 1) & (MAX_IOPORTS - 1);
328 ioport_write(0, address, (data >> 8) & 0xff);
331 static uint32_t default_ioport_readl(void *opaque, uint32_t address)
333 #ifdef DEBUG_UNUSED_IOPORT
334 fprintf(stderr, "unused inl: port=0x%04x\n", address);
335 #endif
336 return 0xffffffff;
339 static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
341 #ifdef DEBUG_UNUSED_IOPORT
342 fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
343 #endif
346 /* size is the word size in byte */
347 int register_ioport_read(int start, int length, int size,
348 IOPortReadFunc *func, void *opaque)
350 int i, bsize;
352 if (size == 1) {
353 bsize = 0;
354 } else if (size == 2) {
355 bsize = 1;
356 } else if (size == 4) {
357 bsize = 2;
358 } else {
359 hw_error("register_ioport_read: invalid size");
360 return -1;
362 for(i = start; i < start + length; i += size) {
363 ioport_read_table[bsize][i] = func;
364 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
365 hw_error("register_ioport_read: invalid opaque");
366 ioport_opaque[i] = opaque;
368 return 0;
371 /* size is the word size in byte */
372 int register_ioport_write(int start, int length, int size,
373 IOPortWriteFunc *func, void *opaque)
375 int i, bsize;
377 if (size == 1) {
378 bsize = 0;
379 } else if (size == 2) {
380 bsize = 1;
381 } else if (size == 4) {
382 bsize = 2;
383 } else {
384 hw_error("register_ioport_write: invalid size");
385 return -1;
387 for(i = start; i < start + length; i += size) {
388 ioport_write_table[bsize][i] = func;
389 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
390 hw_error("register_ioport_write: invalid opaque");
391 ioport_opaque[i] = opaque;
393 return 0;
396 void isa_unassign_ioport(int start, int length)
398 int i;
400 for(i = start; i < start + length; i++) {
401 ioport_read_table[0][i] = default_ioport_readb;
402 ioport_read_table[1][i] = default_ioport_readw;
403 ioport_read_table[2][i] = default_ioport_readl;
405 ioport_write_table[0][i] = default_ioport_writeb;
406 ioport_write_table[1][i] = default_ioport_writew;
407 ioport_write_table[2][i] = default_ioport_writel;
411 /***********************************************************/
413 void cpu_outb(CPUState *env, int addr, int val)
415 #ifdef DEBUG_IOPORT
416 if (loglevel & CPU_LOG_IOPORT)
417 fprintf(logfile, "outb: %04x %02x\n", addr, val);
418 #endif
419 ioport_write(0, addr, val);
420 #ifdef USE_KQEMU
421 if (env)
422 env->last_io_time = cpu_get_time_fast();
423 #endif
426 void cpu_outw(CPUState *env, int addr, int val)
428 #ifdef DEBUG_IOPORT
429 if (loglevel & CPU_LOG_IOPORT)
430 fprintf(logfile, "outw: %04x %04x\n", addr, val);
431 #endif
432 ioport_write(1, addr, val);
433 #ifdef USE_KQEMU
434 if (env)
435 env->last_io_time = cpu_get_time_fast();
436 #endif
439 void cpu_outl(CPUState *env, int addr, int val)
441 #ifdef DEBUG_IOPORT
442 if (loglevel & CPU_LOG_IOPORT)
443 fprintf(logfile, "outl: %04x %08x\n", addr, val);
444 #endif
445 ioport_write(2, addr, val);
446 #ifdef USE_KQEMU
447 if (env)
448 env->last_io_time = cpu_get_time_fast();
449 #endif
452 int cpu_inb(CPUState *env, int addr)
454 int val;
455 val = ioport_read(0, addr);
456 #ifdef DEBUG_IOPORT
457 if (loglevel & CPU_LOG_IOPORT)
458 fprintf(logfile, "inb : %04x %02x\n", addr, val);
459 #endif
460 #ifdef USE_KQEMU
461 if (env)
462 env->last_io_time = cpu_get_time_fast();
463 #endif
464 return val;
467 int cpu_inw(CPUState *env, int addr)
469 int val;
470 val = ioport_read(1, addr);
471 #ifdef DEBUG_IOPORT
472 if (loglevel & CPU_LOG_IOPORT)
473 fprintf(logfile, "inw : %04x %04x\n", addr, val);
474 #endif
475 #ifdef USE_KQEMU
476 if (env)
477 env->last_io_time = cpu_get_time_fast();
478 #endif
479 return val;
482 int cpu_inl(CPUState *env, int addr)
484 int val;
485 val = ioport_read(2, addr);
486 #ifdef DEBUG_IOPORT
487 if (loglevel & CPU_LOG_IOPORT)
488 fprintf(logfile, "inl : %04x %08x\n", addr, val);
489 #endif
490 #ifdef USE_KQEMU
491 if (env)
492 env->last_io_time = cpu_get_time_fast();
493 #endif
494 return val;
497 /***********************************************************/
498 void hw_error(const char *fmt, ...)
500 va_list ap;
501 CPUState *env;
503 va_start(ap, fmt);
504 fprintf(stderr, "qemu: hardware error: ");
505 vfprintf(stderr, fmt, ap);
506 fprintf(stderr, "\n");
507 for(env = first_cpu; env != NULL; env = env->next_cpu) {
508 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
509 #ifdef TARGET_I386
510 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
511 #else
512 cpu_dump_state(env, stderr, fprintf, 0);
513 #endif
515 va_end(ap);
516 abort();
519 /***************/
520 /* ballooning */
522 static QEMUBalloonEvent *qemu_balloon_event;
523 void *qemu_balloon_event_opaque;
525 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
527 qemu_balloon_event = func;
528 qemu_balloon_event_opaque = opaque;
531 void qemu_balloon(ram_addr_t target)
533 if (qemu_balloon_event)
534 qemu_balloon_event(qemu_balloon_event_opaque, target);
537 ram_addr_t qemu_balloon_status(void)
539 if (qemu_balloon_event)
540 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
541 return 0;
544 /***********************************************************/
545 /* keyboard/mouse */
547 static QEMUPutKBDEvent *qemu_put_kbd_event;
548 static void *qemu_put_kbd_event_opaque;
549 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
550 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
552 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
554 qemu_put_kbd_event_opaque = opaque;
555 qemu_put_kbd_event = func;
558 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
559 void *opaque, int absolute,
560 const char *name)
562 QEMUPutMouseEntry *s, *cursor;
564 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
565 if (!s)
566 return NULL;
568 s->qemu_put_mouse_event = func;
569 s->qemu_put_mouse_event_opaque = opaque;
570 s->qemu_put_mouse_event_absolute = absolute;
571 s->qemu_put_mouse_event_name = qemu_strdup(name);
572 s->next = NULL;
574 if (!qemu_put_mouse_event_head) {
575 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
576 return s;
579 cursor = qemu_put_mouse_event_head;
580 while (cursor->next != NULL)
581 cursor = cursor->next;
583 cursor->next = s;
584 qemu_put_mouse_event_current = s;
586 return s;
589 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
591 QEMUPutMouseEntry *prev = NULL, *cursor;
593 if (!qemu_put_mouse_event_head || entry == NULL)
594 return;
596 cursor = qemu_put_mouse_event_head;
597 while (cursor != NULL && cursor != entry) {
598 prev = cursor;
599 cursor = cursor->next;
602 if (cursor == NULL) // does not exist or list empty
603 return;
604 else if (prev == NULL) { // entry is head
605 qemu_put_mouse_event_head = cursor->next;
606 if (qemu_put_mouse_event_current == entry)
607 qemu_put_mouse_event_current = cursor->next;
608 qemu_free(entry->qemu_put_mouse_event_name);
609 qemu_free(entry);
610 return;
613 prev->next = entry->next;
615 if (qemu_put_mouse_event_current == entry)
616 qemu_put_mouse_event_current = prev;
618 qemu_free(entry->qemu_put_mouse_event_name);
619 qemu_free(entry);
622 void kbd_put_keycode(int keycode)
624 if (qemu_put_kbd_event) {
625 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
629 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
631 QEMUPutMouseEvent *mouse_event;
632 void *mouse_event_opaque;
633 int width;
635 if (!qemu_put_mouse_event_current) {
636 return;
639 mouse_event =
640 qemu_put_mouse_event_current->qemu_put_mouse_event;
641 mouse_event_opaque =
642 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
644 if (mouse_event) {
645 if (graphic_rotate) {
646 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
647 width = 0x7fff;
648 else
649 width = graphic_width - 1;
650 mouse_event(mouse_event_opaque,
651 width - dy, dx, dz, buttons_state);
652 } else
653 mouse_event(mouse_event_opaque,
654 dx, dy, dz, buttons_state);
658 int kbd_mouse_is_absolute(void)
660 if (!qemu_put_mouse_event_current)
661 return 0;
663 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
666 void do_info_mice(void)
668 QEMUPutMouseEntry *cursor;
669 int index = 0;
671 if (!qemu_put_mouse_event_head) {
672 term_printf("No mouse devices connected\n");
673 return;
676 term_printf("Mouse devices available:\n");
677 cursor = qemu_put_mouse_event_head;
678 while (cursor != NULL) {
679 term_printf("%c Mouse #%d: %s\n",
680 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
681 index, cursor->qemu_put_mouse_event_name);
682 index++;
683 cursor = cursor->next;
687 void do_mouse_set(int index)
689 QEMUPutMouseEntry *cursor;
690 int i = 0;
692 if (!qemu_put_mouse_event_head) {
693 term_printf("No mouse devices connected\n");
694 return;
697 cursor = qemu_put_mouse_event_head;
698 while (cursor != NULL && index != i) {
699 i++;
700 cursor = cursor->next;
703 if (cursor != NULL)
704 qemu_put_mouse_event_current = cursor;
705 else
706 term_printf("Mouse at given index not found\n");
709 /* compute with 96 bit intermediate result: (a*b)/c */
710 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
712 union {
713 uint64_t ll;
714 struct {
715 #ifdef WORDS_BIGENDIAN
716 uint32_t high, low;
717 #else
718 uint32_t low, high;
719 #endif
720 } l;
721 } u, res;
722 uint64_t rl, rh;
724 u.ll = a;
725 rl = (uint64_t)u.l.low * (uint64_t)b;
726 rh = (uint64_t)u.l.high * (uint64_t)b;
727 rh += (rl >> 32);
728 res.l.high = rh / c;
729 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
730 return res.ll;
733 /***********************************************************/
734 /* real time host monotonic timer */
736 #define QEMU_TIMER_BASE 1000000000LL
738 #ifdef WIN32
740 static int64_t clock_freq;
742 static void init_get_clock(void)
744 LARGE_INTEGER freq;
745 int ret;
746 ret = QueryPerformanceFrequency(&freq);
747 if (ret == 0) {
748 fprintf(stderr, "Could not calibrate ticks\n");
749 exit(1);
751 clock_freq = freq.QuadPart;
754 static int64_t get_clock(void)
756 LARGE_INTEGER ti;
757 QueryPerformanceCounter(&ti);
758 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
761 #else
763 static int use_rt_clock;
765 static void init_get_clock(void)
767 use_rt_clock = 0;
768 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000)
770 struct timespec ts;
771 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
772 use_rt_clock = 1;
775 #endif
778 static int64_t get_clock(void)
780 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000)
781 if (use_rt_clock) {
782 struct timespec ts;
783 clock_gettime(CLOCK_MONOTONIC, &ts);
784 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
785 } else
786 #endif
788 /* XXX: using gettimeofday leads to problems if the date
789 changes, so it should be avoided. */
790 struct timeval tv;
791 gettimeofday(&tv, NULL);
792 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
795 #endif
797 /* Return the virtual CPU time, based on the instruction counter. */
798 static int64_t cpu_get_icount(void)
800 int64_t icount;
801 CPUState *env = cpu_single_env;;
802 icount = qemu_icount;
803 if (env) {
804 if (!can_do_io(env))
805 fprintf(stderr, "Bad clock read\n");
806 icount -= (env->icount_decr.u16.low + env->icount_extra);
808 return qemu_icount_bias + (icount << icount_time_shift);
811 /***********************************************************/
812 /* guest cycle counter */
814 static int64_t cpu_ticks_prev;
815 static int64_t cpu_ticks_offset;
816 static int64_t cpu_clock_offset;
817 static int cpu_ticks_enabled;
819 /* return the host CPU cycle counter and handle stop/restart */
820 int64_t cpu_get_ticks(void)
822 if (use_icount) {
823 return cpu_get_icount();
825 if (!cpu_ticks_enabled) {
826 return cpu_ticks_offset;
827 } else {
828 int64_t ticks;
829 ticks = cpu_get_real_ticks();
830 if (cpu_ticks_prev > ticks) {
831 /* Note: non increasing ticks may happen if the host uses
832 software suspend */
833 cpu_ticks_offset += cpu_ticks_prev - ticks;
835 cpu_ticks_prev = ticks;
836 return ticks + cpu_ticks_offset;
840 /* return the host CPU monotonic timer and handle stop/restart */
841 static int64_t cpu_get_clock(void)
843 int64_t ti;
844 if (!cpu_ticks_enabled) {
845 return cpu_clock_offset;
846 } else {
847 ti = get_clock();
848 return ti + cpu_clock_offset;
852 /* enable cpu_get_ticks() */
853 void cpu_enable_ticks(void)
855 if (!cpu_ticks_enabled) {
856 cpu_ticks_offset -= cpu_get_real_ticks();
857 cpu_clock_offset -= get_clock();
858 cpu_ticks_enabled = 1;
862 /* disable cpu_get_ticks() : the clock is stopped. You must not call
863 cpu_get_ticks() after that. */
864 void cpu_disable_ticks(void)
866 if (cpu_ticks_enabled) {
867 cpu_ticks_offset = cpu_get_ticks();
868 cpu_clock_offset = cpu_get_clock();
869 cpu_ticks_enabled = 0;
873 /***********************************************************/
874 /* timers */
876 #define QEMU_TIMER_REALTIME 0
877 #define QEMU_TIMER_VIRTUAL 1
879 struct QEMUClock {
880 int type;
881 /* XXX: add frequency */
884 struct QEMUTimer {
885 QEMUClock *clock;
886 int64_t expire_time;
887 QEMUTimerCB *cb;
888 void *opaque;
889 struct QEMUTimer *next;
892 struct qemu_alarm_timer {
893 char const *name;
894 unsigned int flags;
896 int (*start)(struct qemu_alarm_timer *t);
897 void (*stop)(struct qemu_alarm_timer *t);
898 void (*rearm)(struct qemu_alarm_timer *t);
899 void *priv;
902 #define ALARM_FLAG_DYNTICKS 0x1
903 #define ALARM_FLAG_EXPIRED 0x2
905 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
907 return t->flags & ALARM_FLAG_DYNTICKS;
910 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
912 if (!alarm_has_dynticks(t))
913 return;
915 t->rearm(t);
918 /* TODO: MIN_TIMER_REARM_US should be optimized */
919 #define MIN_TIMER_REARM_US 250
921 static struct qemu_alarm_timer *alarm_timer;
922 #ifndef _WIN32
923 static int alarm_timer_rfd, alarm_timer_wfd;
924 #endif
926 #ifdef _WIN32
928 struct qemu_alarm_win32 {
929 MMRESULT timerId;
930 HANDLE host_alarm;
931 unsigned int period;
932 } alarm_win32_data = {0, NULL, -1};
934 static int win32_start_timer(struct qemu_alarm_timer *t);
935 static void win32_stop_timer(struct qemu_alarm_timer *t);
936 static void win32_rearm_timer(struct qemu_alarm_timer *t);
938 #else
940 static int unix_start_timer(struct qemu_alarm_timer *t);
941 static void unix_stop_timer(struct qemu_alarm_timer *t);
943 #ifdef __linux__
945 static int dynticks_start_timer(struct qemu_alarm_timer *t);
946 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
947 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
949 static int hpet_start_timer(struct qemu_alarm_timer *t);
950 static void hpet_stop_timer(struct qemu_alarm_timer *t);
952 static int rtc_start_timer(struct qemu_alarm_timer *t);
953 static void rtc_stop_timer(struct qemu_alarm_timer *t);
955 #endif /* __linux__ */
957 #endif /* _WIN32 */
959 /* Correlation between real and virtual time is always going to be
960 fairly approximate, so ignore small variation.
961 When the guest is idle real and virtual time will be aligned in
962 the IO wait loop. */
963 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
965 static void icount_adjust(void)
967 int64_t cur_time;
968 int64_t cur_icount;
969 int64_t delta;
970 static int64_t last_delta;
971 /* If the VM is not running, then do nothing. */
972 if (!vm_running)
973 return;
975 cur_time = cpu_get_clock();
976 cur_icount = qemu_get_clock(vm_clock);
977 delta = cur_icount - cur_time;
978 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
979 if (delta > 0
980 && last_delta + ICOUNT_WOBBLE < delta * 2
981 && icount_time_shift > 0) {
982 /* The guest is getting too far ahead. Slow time down. */
983 icount_time_shift--;
985 if (delta < 0
986 && last_delta - ICOUNT_WOBBLE > delta * 2
987 && icount_time_shift < MAX_ICOUNT_SHIFT) {
988 /* The guest is getting too far behind. Speed time up. */
989 icount_time_shift++;
991 last_delta = delta;
992 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
995 static void icount_adjust_rt(void * opaque)
997 qemu_mod_timer(icount_rt_timer,
998 qemu_get_clock(rt_clock) + 1000);
999 icount_adjust();
1002 static void icount_adjust_vm(void * opaque)
1004 qemu_mod_timer(icount_vm_timer,
1005 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
1006 icount_adjust();
1009 static void init_icount_adjust(void)
1011 /* Have both realtime and virtual time triggers for speed adjustment.
1012 The realtime trigger catches emulated time passing too slowly,
1013 the virtual time trigger catches emulated time passing too fast.
1014 Realtime triggers occur even when idle, so use them less frequently
1015 than VM triggers. */
1016 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
1017 qemu_mod_timer(icount_rt_timer,
1018 qemu_get_clock(rt_clock) + 1000);
1019 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
1020 qemu_mod_timer(icount_vm_timer,
1021 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
1024 static struct qemu_alarm_timer alarm_timers[] = {
1025 #ifndef _WIN32
1026 #ifdef __linux__
1027 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
1028 dynticks_stop_timer, dynticks_rearm_timer, NULL},
1029 /* HPET - if available - is preferred */
1030 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
1031 /* ...otherwise try RTC */
1032 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
1033 #endif
1034 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
1035 #else
1036 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
1037 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
1038 {"win32", 0, win32_start_timer,
1039 win32_stop_timer, NULL, &alarm_win32_data},
1040 #endif
1041 {NULL, }
1044 static void show_available_alarms(void)
1046 int i;
1048 printf("Available alarm timers, in order of precedence:\n");
1049 for (i = 0; alarm_timers[i].name; i++)
1050 printf("%s\n", alarm_timers[i].name);
1053 static void configure_alarms(char const *opt)
1055 int i;
1056 int cur = 0;
1057 int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1;
1058 char *arg;
1059 char *name;
1060 struct qemu_alarm_timer tmp;
1062 if (!strcmp(opt, "?")) {
1063 show_available_alarms();
1064 exit(0);
1067 arg = strdup(opt);
1069 /* Reorder the array */
1070 name = strtok(arg, ",");
1071 while (name) {
1072 for (i = 0; i < count && alarm_timers[i].name; i++) {
1073 if (!strcmp(alarm_timers[i].name, name))
1074 break;
1077 if (i == count) {
1078 fprintf(stderr, "Unknown clock %s\n", name);
1079 goto next;
1082 if (i < cur)
1083 /* Ignore */
1084 goto next;
1086 /* Swap */
1087 tmp = alarm_timers[i];
1088 alarm_timers[i] = alarm_timers[cur];
1089 alarm_timers[cur] = tmp;
1091 cur++;
1092 next:
1093 name = strtok(NULL, ",");
1096 free(arg);
1098 if (cur) {
1099 /* Disable remaining timers */
1100 for (i = cur; i < count; i++)
1101 alarm_timers[i].name = NULL;
1102 } else {
1103 show_available_alarms();
1104 exit(1);
1108 QEMUClock *rt_clock;
1109 QEMUClock *vm_clock;
1111 static QEMUTimer *active_timers[2];
1113 static QEMUClock *qemu_new_clock(int type)
1115 QEMUClock *clock;
1116 clock = qemu_mallocz(sizeof(QEMUClock));
1117 if (!clock)
1118 return NULL;
1119 clock->type = type;
1120 return clock;
1123 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
1125 QEMUTimer *ts;
1127 ts = qemu_mallocz(sizeof(QEMUTimer));
1128 ts->clock = clock;
1129 ts->cb = cb;
1130 ts->opaque = opaque;
1131 return ts;
1134 void qemu_free_timer(QEMUTimer *ts)
1136 qemu_free(ts);
1139 /* stop a timer, but do not dealloc it */
1140 void qemu_del_timer(QEMUTimer *ts)
1142 QEMUTimer **pt, *t;
1144 /* NOTE: this code must be signal safe because
1145 qemu_timer_expired() can be called from a signal. */
1146 pt = &active_timers[ts->clock->type];
1147 for(;;) {
1148 t = *pt;
1149 if (!t)
1150 break;
1151 if (t == ts) {
1152 *pt = t->next;
1153 break;
1155 pt = &t->next;
1159 /* modify the current timer so that it will be fired when current_time
1160 >= expire_time. The corresponding callback will be called. */
1161 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
1163 QEMUTimer **pt, *t;
1165 qemu_del_timer(ts);
1167 /* add the timer in the sorted list */
1168 /* NOTE: this code must be signal safe because
1169 qemu_timer_expired() can be called from a signal. */
1170 pt = &active_timers[ts->clock->type];
1171 for(;;) {
1172 t = *pt;
1173 if (!t)
1174 break;
1175 if (t->expire_time > expire_time)
1176 break;
1177 pt = &t->next;
1179 ts->expire_time = expire_time;
1180 ts->next = *pt;
1181 *pt = ts;
1183 /* Rearm if necessary */
1184 if (pt == &active_timers[ts->clock->type]) {
1185 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
1186 qemu_rearm_alarm_timer(alarm_timer);
1188 /* Interrupt execution to force deadline recalculation. */
1189 if (use_icount && cpu_single_env) {
1190 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
1195 int qemu_timer_pending(QEMUTimer *ts)
1197 QEMUTimer *t;
1198 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
1199 if (t == ts)
1200 return 1;
1202 return 0;
1205 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1207 if (!timer_head)
1208 return 0;
1209 return (timer_head->expire_time <= current_time);
1212 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1214 QEMUTimer *ts;
1216 for(;;) {
1217 ts = *ptimer_head;
1218 if (!ts || ts->expire_time > current_time)
1219 break;
1220 /* remove timer from the list before calling the callback */
1221 *ptimer_head = ts->next;
1222 ts->next = NULL;
1224 /* run the callback (the timer list can be modified) */
1225 ts->cb(ts->opaque);
1229 int64_t qemu_get_clock(QEMUClock *clock)
1231 switch(clock->type) {
1232 case QEMU_TIMER_REALTIME:
1233 return get_clock() / 1000000;
1234 default:
1235 case QEMU_TIMER_VIRTUAL:
1236 if (use_icount) {
1237 return cpu_get_icount();
1238 } else {
1239 return cpu_get_clock();
1244 static void init_timers(void)
1246 init_get_clock();
1247 ticks_per_sec = QEMU_TIMER_BASE;
1248 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1249 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1252 /* save a timer */
1253 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1255 uint64_t expire_time;
1257 if (qemu_timer_pending(ts)) {
1258 expire_time = ts->expire_time;
1259 } else {
1260 expire_time = -1;
1262 qemu_put_be64(f, expire_time);
1265 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1267 uint64_t expire_time;
1269 expire_time = qemu_get_be64(f);
1270 if (expire_time != -1) {
1271 qemu_mod_timer(ts, expire_time);
1272 } else {
1273 qemu_del_timer(ts);
1277 static void timer_save(QEMUFile *f, void *opaque)
1279 if (cpu_ticks_enabled) {
1280 hw_error("cannot save state if virtual timers are running");
1282 qemu_put_be64(f, cpu_ticks_offset);
1283 qemu_put_be64(f, ticks_per_sec);
1284 qemu_put_be64(f, cpu_clock_offset);
1287 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1289 if (version_id != 1 && version_id != 2)
1290 return -EINVAL;
1291 if (cpu_ticks_enabled) {
1292 return -EINVAL;
1294 cpu_ticks_offset=qemu_get_be64(f);
1295 ticks_per_sec=qemu_get_be64(f);
1296 if (version_id == 2) {
1297 cpu_clock_offset=qemu_get_be64(f);
1299 return 0;
1302 #ifdef _WIN32
1303 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1304 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
1305 #else
1306 static void host_alarm_handler(int host_signum)
1307 #endif
1309 #if 0
1310 #define DISP_FREQ 1000
1312 static int64_t delta_min = INT64_MAX;
1313 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1314 static int count;
1315 ti = qemu_get_clock(vm_clock);
1316 if (last_clock != 0) {
1317 delta = ti - last_clock;
1318 if (delta < delta_min)
1319 delta_min = delta;
1320 if (delta > delta_max)
1321 delta_max = delta;
1322 delta_cum += delta;
1323 if (++count == DISP_FREQ) {
1324 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1325 muldiv64(delta_min, 1000000, ticks_per_sec),
1326 muldiv64(delta_max, 1000000, ticks_per_sec),
1327 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1328 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1329 count = 0;
1330 delta_min = INT64_MAX;
1331 delta_max = 0;
1332 delta_cum = 0;
1335 last_clock = ti;
1337 #endif
1338 if (alarm_has_dynticks(alarm_timer) ||
1339 (!use_icount &&
1340 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1341 qemu_get_clock(vm_clock))) ||
1342 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1343 qemu_get_clock(rt_clock))) {
1344 CPUState *env = next_cpu;
1346 #ifdef _WIN32
1347 struct qemu_alarm_win32 *data = ((struct qemu_alarm_timer*)dwUser)->priv;
1348 SetEvent(data->host_alarm);
1349 #else
1350 static const char byte = 0;
1351 write(alarm_timer_wfd, &byte, sizeof(byte));
1352 #endif
1353 alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1355 if (env) {
1356 /* stop the currently executing cpu because a timer occured */
1357 cpu_interrupt(env, CPU_INTERRUPT_EXIT);
1358 #ifdef USE_KQEMU
1359 if (env->kqemu_enabled) {
1360 kqemu_cpu_interrupt(env);
1362 #endif
1364 event_pending = 1;
1368 static int64_t qemu_next_deadline(void)
1370 int64_t delta;
1372 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1373 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1374 qemu_get_clock(vm_clock);
1375 } else {
1376 /* To avoid problems with overflow limit this to 2^32. */
1377 delta = INT32_MAX;
1380 if (delta < 0)
1381 delta = 0;
1383 return delta;
1386 #if defined(__linux__) || defined(_WIN32)
1387 static uint64_t qemu_next_deadline_dyntick(void)
1389 int64_t delta;
1390 int64_t rtdelta;
1392 if (use_icount)
1393 delta = INT32_MAX;
1394 else
1395 delta = (qemu_next_deadline() + 999) / 1000;
1397 if (active_timers[QEMU_TIMER_REALTIME]) {
1398 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1399 qemu_get_clock(rt_clock))*1000;
1400 if (rtdelta < delta)
1401 delta = rtdelta;
1404 if (delta < MIN_TIMER_REARM_US)
1405 delta = MIN_TIMER_REARM_US;
1407 return delta;
1409 #endif
1411 #ifndef _WIN32
1413 /* Sets a specific flag */
1414 static int fcntl_setfl(int fd, int flag)
1416 int flags;
1418 flags = fcntl(fd, F_GETFL);
1419 if (flags == -1)
1420 return -errno;
1422 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1423 return -errno;
1425 return 0;
1428 #if defined(__linux__)
1430 #define RTC_FREQ 1024
1432 static void enable_sigio_timer(int fd)
1434 struct sigaction act;
1436 /* timer signal */
1437 sigfillset(&act.sa_mask);
1438 act.sa_flags = 0;
1439 act.sa_handler = host_alarm_handler;
1441 sigaction(SIGIO, &act, NULL);
1442 fcntl_setfl(fd, O_ASYNC);
1443 fcntl(fd, F_SETOWN, getpid());
1446 static int hpet_start_timer(struct qemu_alarm_timer *t)
1448 struct hpet_info info;
1449 int r, fd;
1451 fd = open("/dev/hpet", O_RDONLY);
1452 if (fd < 0)
1453 return -1;
1455 /* Set frequency */
1456 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1457 if (r < 0) {
1458 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1459 "error, but for better emulation accuracy type:\n"
1460 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1461 goto fail;
1464 /* Check capabilities */
1465 r = ioctl(fd, HPET_INFO, &info);
1466 if (r < 0)
1467 goto fail;
1469 /* Enable periodic mode */
1470 r = ioctl(fd, HPET_EPI, 0);
1471 if (info.hi_flags && (r < 0))
1472 goto fail;
1474 /* Enable interrupt */
1475 r = ioctl(fd, HPET_IE_ON, 0);
1476 if (r < 0)
1477 goto fail;
1479 enable_sigio_timer(fd);
1480 t->priv = (void *)(long)fd;
1482 return 0;
1483 fail:
1484 close(fd);
1485 return -1;
1488 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1490 int fd = (long)t->priv;
1492 close(fd);
1495 static int rtc_start_timer(struct qemu_alarm_timer *t)
1497 int rtc_fd;
1498 unsigned long current_rtc_freq = 0;
1500 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1501 if (rtc_fd < 0)
1502 return -1;
1503 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1504 if (current_rtc_freq != RTC_FREQ &&
1505 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1506 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1507 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1508 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1509 goto fail;
1511 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1512 fail:
1513 close(rtc_fd);
1514 return -1;
1517 enable_sigio_timer(rtc_fd);
1519 t->priv = (void *)(long)rtc_fd;
1521 return 0;
1524 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1526 int rtc_fd = (long)t->priv;
1528 close(rtc_fd);
1531 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1533 struct sigevent ev;
1534 timer_t host_timer;
1535 struct sigaction act;
1537 sigfillset(&act.sa_mask);
1538 act.sa_flags = 0;
1539 act.sa_handler = host_alarm_handler;
1541 sigaction(SIGALRM, &act, NULL);
1543 ev.sigev_value.sival_int = 0;
1544 ev.sigev_notify = SIGEV_SIGNAL;
1545 ev.sigev_signo = SIGALRM;
1547 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1548 perror("timer_create");
1550 /* disable dynticks */
1551 fprintf(stderr, "Dynamic Ticks disabled\n");
1553 return -1;
1556 t->priv = (void *)(long)host_timer;
1558 return 0;
1561 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1563 timer_t host_timer = (timer_t)(long)t->priv;
1565 timer_delete(host_timer);
1568 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1570 timer_t host_timer = (timer_t)(long)t->priv;
1571 struct itimerspec timeout;
1572 int64_t nearest_delta_us = INT64_MAX;
1573 int64_t current_us;
1575 if (!active_timers[QEMU_TIMER_REALTIME] &&
1576 !active_timers[QEMU_TIMER_VIRTUAL])
1577 return;
1579 nearest_delta_us = qemu_next_deadline_dyntick();
1581 /* check whether a timer is already running */
1582 if (timer_gettime(host_timer, &timeout)) {
1583 perror("gettime");
1584 fprintf(stderr, "Internal timer error: aborting\n");
1585 exit(1);
1587 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1588 if (current_us && current_us <= nearest_delta_us)
1589 return;
1591 timeout.it_interval.tv_sec = 0;
1592 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1593 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1594 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1595 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1596 perror("settime");
1597 fprintf(stderr, "Internal timer error: aborting\n");
1598 exit(1);
1602 #endif /* defined(__linux__) */
1604 static int unix_start_timer(struct qemu_alarm_timer *t)
1606 struct sigaction act;
1607 struct itimerval itv;
1608 int err;
1610 /* timer signal */
1611 sigfillset(&act.sa_mask);
1612 act.sa_flags = 0;
1613 act.sa_handler = host_alarm_handler;
1615 sigaction(SIGALRM, &act, NULL);
1617 itv.it_interval.tv_sec = 0;
1618 /* for i386 kernel 2.6 to get 1 ms */
1619 itv.it_interval.tv_usec = 999;
1620 itv.it_value.tv_sec = 0;
1621 itv.it_value.tv_usec = 10 * 1000;
1623 err = setitimer(ITIMER_REAL, &itv, NULL);
1624 if (err)
1625 return -1;
1627 return 0;
1630 static void unix_stop_timer(struct qemu_alarm_timer *t)
1632 struct itimerval itv;
1634 memset(&itv, 0, sizeof(itv));
1635 setitimer(ITIMER_REAL, &itv, NULL);
1638 #endif /* !defined(_WIN32) */
1640 static void try_to_rearm_timer(void *opaque)
1642 struct qemu_alarm_timer *t = opaque;
1643 #ifndef _WIN32
1644 ssize_t len;
1646 /* Drain the notify pipe */
1647 do {
1648 char buffer[512];
1649 len = read(alarm_timer_rfd, buffer, sizeof(buffer));
1650 } while ((len == -1 && errno == EINTR) || len > 0);
1651 #endif
1653 if (t->flags & ALARM_FLAG_EXPIRED) {
1654 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
1655 qemu_rearm_alarm_timer(alarm_timer);
1659 #ifdef _WIN32
1661 static int win32_start_timer(struct qemu_alarm_timer *t)
1663 TIMECAPS tc;
1664 struct qemu_alarm_win32 *data = t->priv;
1665 UINT flags;
1667 data->host_alarm = CreateEvent(NULL, FALSE, FALSE, NULL);
1668 if (!data->host_alarm) {
1669 perror("Failed CreateEvent");
1670 return -1;
1673 memset(&tc, 0, sizeof(tc));
1674 timeGetDevCaps(&tc, sizeof(tc));
1676 if (data->period < tc.wPeriodMin)
1677 data->period = tc.wPeriodMin;
1679 timeBeginPeriod(data->period);
1681 flags = TIME_CALLBACK_FUNCTION;
1682 if (alarm_has_dynticks(t))
1683 flags |= TIME_ONESHOT;
1684 else
1685 flags |= TIME_PERIODIC;
1687 data->timerId = timeSetEvent(1, // interval (ms)
1688 data->period, // resolution
1689 host_alarm_handler, // function
1690 (DWORD)t, // parameter
1691 flags);
1693 if (!data->timerId) {
1694 perror("Failed to initialize win32 alarm timer");
1696 timeEndPeriod(data->period);
1697 CloseHandle(data->host_alarm);
1698 return -1;
1701 qemu_add_wait_object(data->host_alarm, try_to_rearm_timer, t);
1703 return 0;
1706 static void win32_stop_timer(struct qemu_alarm_timer *t)
1708 struct qemu_alarm_win32 *data = t->priv;
1710 timeKillEvent(data->timerId);
1711 timeEndPeriod(data->period);
1713 CloseHandle(data->host_alarm);
1716 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1718 struct qemu_alarm_win32 *data = t->priv;
1719 uint64_t nearest_delta_us;
1721 if (!active_timers[QEMU_TIMER_REALTIME] &&
1722 !active_timers[QEMU_TIMER_VIRTUAL])
1723 return;
1725 nearest_delta_us = qemu_next_deadline_dyntick();
1726 nearest_delta_us /= 1000;
1728 timeKillEvent(data->timerId);
1730 data->timerId = timeSetEvent(1,
1731 data->period,
1732 host_alarm_handler,
1733 (DWORD)t,
1734 TIME_ONESHOT | TIME_PERIODIC);
1736 if (!data->timerId) {
1737 perror("Failed to re-arm win32 alarm timer");
1739 timeEndPeriod(data->period);
1740 CloseHandle(data->host_alarm);
1741 exit(1);
1745 #endif /* _WIN32 */
1747 static int init_timer_alarm(void)
1749 struct qemu_alarm_timer *t = NULL;
1750 int i, err = -1;
1752 #ifndef _WIN32
1753 int fds[2];
1755 err = pipe(fds);
1756 if (err == -1)
1757 return -errno;
1759 err = fcntl_setfl(fds[0], O_NONBLOCK);
1760 if (err < 0)
1761 goto fail;
1763 err = fcntl_setfl(fds[1], O_NONBLOCK);
1764 if (err < 0)
1765 goto fail;
1767 alarm_timer_rfd = fds[0];
1768 alarm_timer_wfd = fds[1];
1769 #endif
1771 for (i = 0; alarm_timers[i].name; i++) {
1772 t = &alarm_timers[i];
1774 err = t->start(t);
1775 if (!err)
1776 break;
1779 if (err) {
1780 err = -ENOENT;
1781 goto fail;
1784 #ifndef _WIN32
1785 qemu_set_fd_handler2(alarm_timer_rfd, NULL,
1786 try_to_rearm_timer, NULL, t);
1787 #endif
1789 alarm_timer = t;
1791 return 0;
1793 fail:
1794 #ifndef _WIN32
1795 close(fds[0]);
1796 close(fds[1]);
1797 #endif
1798 return err;
1801 static void quit_timers(void)
1803 alarm_timer->stop(alarm_timer);
1804 alarm_timer = NULL;
1807 /***********************************************************/
1808 /* host time/date access */
1809 void qemu_get_timedate(struct tm *tm, int offset)
1811 time_t ti;
1812 struct tm *ret;
1814 time(&ti);
1815 ti += offset;
1816 if (rtc_date_offset == -1) {
1817 if (rtc_utc)
1818 ret = gmtime(&ti);
1819 else
1820 ret = localtime(&ti);
1821 } else {
1822 ti -= rtc_date_offset;
1823 ret = gmtime(&ti);
1826 memcpy(tm, ret, sizeof(struct tm));
1829 int qemu_timedate_diff(struct tm *tm)
1831 time_t seconds;
1833 if (rtc_date_offset == -1)
1834 if (rtc_utc)
1835 seconds = mktimegm(tm);
1836 else
1837 seconds = mktime(tm);
1838 else
1839 seconds = mktimegm(tm) + rtc_date_offset;
1841 return seconds - time(NULL);
1844 #ifdef _WIN32
1845 static void socket_cleanup(void)
1847 WSACleanup();
1850 static int socket_init(void)
1852 WSADATA Data;
1853 int ret, err;
1855 ret = WSAStartup(MAKEWORD(2,2), &Data);
1856 if (ret != 0) {
1857 err = WSAGetLastError();
1858 fprintf(stderr, "WSAStartup: %d\n", err);
1859 return -1;
1861 atexit(socket_cleanup);
1862 return 0;
1864 #endif
1866 const char *get_opt_name(char *buf, int buf_size, const char *p)
1868 char *q;
1870 q = buf;
1871 while (*p != '\0' && *p != '=') {
1872 if (q && (q - buf) < buf_size - 1)
1873 *q++ = *p;
1874 p++;
1876 if (q)
1877 *q = '\0';
1879 return p;
1882 const char *get_opt_value(char *buf, int buf_size, const char *p)
1884 char *q;
1886 q = buf;
1887 while (*p != '\0') {
1888 if (*p == ',') {
1889 if (*(p + 1) != ',')
1890 break;
1891 p++;
1893 if (q && (q - buf) < buf_size - 1)
1894 *q++ = *p;
1895 p++;
1897 if (q)
1898 *q = '\0';
1900 return p;
1903 int get_param_value(char *buf, int buf_size,
1904 const char *tag, const char *str)
1906 const char *p;
1907 char option[128];
1909 p = str;
1910 for(;;) {
1911 p = get_opt_name(option, sizeof(option), p);
1912 if (*p != '=')
1913 break;
1914 p++;
1915 if (!strcmp(tag, option)) {
1916 (void)get_opt_value(buf, buf_size, p);
1917 return strlen(buf);
1918 } else {
1919 p = get_opt_value(NULL, 0, p);
1921 if (*p != ',')
1922 break;
1923 p++;
1925 return 0;
1928 int check_params(char *buf, int buf_size,
1929 const char * const *params, const char *str)
1931 const char *p;
1932 int i;
1934 p = str;
1935 for(;;) {
1936 p = get_opt_name(buf, buf_size, p);
1937 if (*p != '=')
1938 return -1;
1939 p++;
1940 for(i = 0; params[i] != NULL; i++)
1941 if (!strcmp(params[i], buf))
1942 break;
1943 if (params[i] == NULL)
1944 return -1;
1945 p = get_opt_value(NULL, 0, p);
1946 if (*p != ',')
1947 break;
1948 p++;
1950 return 0;
1953 /***********************************************************/
1954 /* Bluetooth support */
1955 static int nb_hcis;
1956 static int cur_hci;
1957 static struct HCIInfo *hci_table[MAX_NICS];
1959 static struct bt_vlan_s {
1960 struct bt_scatternet_s net;
1961 int id;
1962 struct bt_vlan_s *next;
1963 } *first_bt_vlan;
1965 /* find or alloc a new bluetooth "VLAN" */
1966 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1968 struct bt_vlan_s **pvlan, *vlan;
1969 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1970 if (vlan->id == id)
1971 return &vlan->net;
1973 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1974 vlan->id = id;
1975 pvlan = &first_bt_vlan;
1976 while (*pvlan != NULL)
1977 pvlan = &(*pvlan)->next;
1978 *pvlan = vlan;
1979 return &vlan->net;
1982 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1986 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1988 return -ENOTSUP;
1991 static struct HCIInfo null_hci = {
1992 .cmd_send = null_hci_send,
1993 .sco_send = null_hci_send,
1994 .acl_send = null_hci_send,
1995 .bdaddr_set = null_hci_addr_set,
1998 struct HCIInfo *qemu_next_hci(void)
2000 if (cur_hci == nb_hcis)
2001 return &null_hci;
2003 return hci_table[cur_hci++];
2006 static struct HCIInfo *hci_init(const char *str)
2008 char *endp;
2009 struct bt_scatternet_s *vlan = 0;
2011 if (!strcmp(str, "null"))
2012 /* null */
2013 return &null_hci;
2014 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
2015 /* host[:hciN] */
2016 return bt_host_hci(str[4] ? str + 5 : "hci0");
2017 else if (!strncmp(str, "hci", 3)) {
2018 /* hci[,vlan=n] */
2019 if (str[3]) {
2020 if (!strncmp(str + 3, ",vlan=", 6)) {
2021 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
2022 if (*endp)
2023 vlan = 0;
2025 } else
2026 vlan = qemu_find_bt_vlan(0);
2027 if (vlan)
2028 return bt_new_hci(vlan);
2031 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
2033 return 0;
2036 static int bt_hci_parse(const char *str)
2038 struct HCIInfo *hci;
2039 bdaddr_t bdaddr;
2041 if (nb_hcis >= MAX_NICS) {
2042 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
2043 return -1;
2046 hci = hci_init(str);
2047 if (!hci)
2048 return -1;
2050 bdaddr.b[0] = 0x52;
2051 bdaddr.b[1] = 0x54;
2052 bdaddr.b[2] = 0x00;
2053 bdaddr.b[3] = 0x12;
2054 bdaddr.b[4] = 0x34;
2055 bdaddr.b[5] = 0x56 + nb_hcis;
2056 hci->bdaddr_set(hci, bdaddr.b);
2058 hci_table[nb_hcis++] = hci;
2060 return 0;
2063 static void bt_vhci_add(int vlan_id)
2065 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
2067 if (!vlan->slave)
2068 fprintf(stderr, "qemu: warning: adding a VHCI to "
2069 "an empty scatternet %i\n", vlan_id);
2071 bt_vhci_init(bt_new_hci(vlan));
2074 static struct bt_device_s *bt_device_add(const char *opt)
2076 struct bt_scatternet_s *vlan;
2077 int vlan_id = 0;
2078 char *endp = strstr(opt, ",vlan=");
2079 int len = (endp ? endp - opt : strlen(opt)) + 1;
2080 char devname[10];
2082 pstrcpy(devname, MIN(sizeof(devname), len), opt);
2084 if (endp) {
2085 vlan_id = strtol(endp + 6, &endp, 0);
2086 if (*endp) {
2087 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
2088 return 0;
2092 vlan = qemu_find_bt_vlan(vlan_id);
2094 if (!vlan->slave)
2095 fprintf(stderr, "qemu: warning: adding a slave device to "
2096 "an empty scatternet %i\n", vlan_id);
2098 if (!strcmp(devname, "keyboard"))
2099 return bt_keyboard_init(vlan);
2101 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
2102 return 0;
2105 static int bt_parse(const char *opt)
2107 const char *endp, *p;
2108 int vlan;
2110 if (strstart(opt, "hci", &endp)) {
2111 if (!*endp || *endp == ',') {
2112 if (*endp)
2113 if (!strstart(endp, ",vlan=", 0))
2114 opt = endp + 1;
2116 return bt_hci_parse(opt);
2118 } else if (strstart(opt, "vhci", &endp)) {
2119 if (!*endp || *endp == ',') {
2120 if (*endp) {
2121 if (strstart(endp, ",vlan=", &p)) {
2122 vlan = strtol(p, (char **) &endp, 0);
2123 if (*endp) {
2124 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
2125 return 1;
2127 } else {
2128 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
2129 return 1;
2131 } else
2132 vlan = 0;
2134 bt_vhci_add(vlan);
2135 return 0;
2137 } else if (strstart(opt, "device:", &endp))
2138 return !bt_device_add(endp);
2140 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
2141 return 1;
2144 /***********************************************************/
2145 /* QEMU Block devices */
2147 #define HD_ALIAS "index=%d,media=disk"
2148 #ifdef TARGET_PPC
2149 #define CDROM_ALIAS "index=1,media=cdrom"
2150 #else
2151 #define CDROM_ALIAS "index=2,media=cdrom"
2152 #endif
2153 #define FD_ALIAS "index=%d,if=floppy"
2154 #define PFLASH_ALIAS "if=pflash"
2155 #define MTD_ALIAS "if=mtd"
2156 #define SD_ALIAS "index=0,if=sd"
2158 static int drive_add(const char *file, const char *fmt, ...)
2160 va_list ap;
2162 if (nb_drives_opt >= MAX_DRIVES) {
2163 fprintf(stderr, "qemu: too many drives\n");
2164 exit(1);
2167 drives_opt[nb_drives_opt].file = file;
2168 va_start(ap, fmt);
2169 vsnprintf(drives_opt[nb_drives_opt].opt,
2170 sizeof(drives_opt[0].opt), fmt, ap);
2171 va_end(ap);
2173 return nb_drives_opt++;
2176 int drive_get_index(BlockInterfaceType type, int bus, int unit)
2178 int index;
2180 /* seek interface, bus and unit */
2182 for (index = 0; index < nb_drives; index++)
2183 if (drives_table[index].type == type &&
2184 drives_table[index].bus == bus &&
2185 drives_table[index].unit == unit)
2186 return index;
2188 return -1;
2191 int drive_get_max_bus(BlockInterfaceType type)
2193 int max_bus;
2194 int index;
2196 max_bus = -1;
2197 for (index = 0; index < nb_drives; index++) {
2198 if(drives_table[index].type == type &&
2199 drives_table[index].bus > max_bus)
2200 max_bus = drives_table[index].bus;
2202 return max_bus;
2205 static void bdrv_format_print(void *opaque, const char *name)
2207 fprintf(stderr, " %s", name);
2210 static int drive_init(struct drive_opt *arg, int snapshot,
2211 QEMUMachine *machine)
2213 char buf[128];
2214 char file[1024];
2215 char devname[128];
2216 const char *mediastr = "";
2217 BlockInterfaceType type;
2218 enum { MEDIA_DISK, MEDIA_CDROM } media;
2219 int bus_id, unit_id;
2220 int cyls, heads, secs, translation;
2221 BlockDriverState *bdrv;
2222 BlockDriver *drv = NULL;
2223 int max_devs;
2224 int index;
2225 int cache;
2226 int bdrv_flags;
2227 char *str = arg->opt;
2228 static const char * const params[] = { "bus", "unit", "if", "index",
2229 "cyls", "heads", "secs", "trans",
2230 "media", "snapshot", "file",
2231 "cache", "format", NULL };
2233 if (check_params(buf, sizeof(buf), params, str) < 0) {
2234 fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n",
2235 buf, str);
2236 return -1;
2239 file[0] = 0;
2240 cyls = heads = secs = 0;
2241 bus_id = 0;
2242 unit_id = -1;
2243 translation = BIOS_ATA_TRANSLATION_AUTO;
2244 index = -1;
2245 cache = 3;
2247 if (machine->use_scsi) {
2248 type = IF_SCSI;
2249 max_devs = MAX_SCSI_DEVS;
2250 pstrcpy(devname, sizeof(devname), "scsi");
2251 } else {
2252 type = IF_IDE;
2253 max_devs = MAX_IDE_DEVS;
2254 pstrcpy(devname, sizeof(devname), "ide");
2256 media = MEDIA_DISK;
2258 /* extract parameters */
2260 if (get_param_value(buf, sizeof(buf), "bus", str)) {
2261 bus_id = strtol(buf, NULL, 0);
2262 if (bus_id < 0) {
2263 fprintf(stderr, "qemu: '%s' invalid bus id\n", str);
2264 return -1;
2268 if (get_param_value(buf, sizeof(buf), "unit", str)) {
2269 unit_id = strtol(buf, NULL, 0);
2270 if (unit_id < 0) {
2271 fprintf(stderr, "qemu: '%s' invalid unit id\n", str);
2272 return -1;
2276 if (get_param_value(buf, sizeof(buf), "if", str)) {
2277 pstrcpy(devname, sizeof(devname), buf);
2278 if (!strcmp(buf, "ide")) {
2279 type = IF_IDE;
2280 max_devs = MAX_IDE_DEVS;
2281 } else if (!strcmp(buf, "scsi")) {
2282 type = IF_SCSI;
2283 max_devs = MAX_SCSI_DEVS;
2284 } else if (!strcmp(buf, "floppy")) {
2285 type = IF_FLOPPY;
2286 max_devs = 0;
2287 } else if (!strcmp(buf, "pflash")) {
2288 type = IF_PFLASH;
2289 max_devs = 0;
2290 } else if (!strcmp(buf, "mtd")) {
2291 type = IF_MTD;
2292 max_devs = 0;
2293 } else if (!strcmp(buf, "sd")) {
2294 type = IF_SD;
2295 max_devs = 0;
2296 } else if (!strcmp(buf, "virtio")) {
2297 type = IF_VIRTIO;
2298 max_devs = 0;
2299 } else {
2300 fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
2301 return -1;
2305 if (get_param_value(buf, sizeof(buf), "index", str)) {
2306 index = strtol(buf, NULL, 0);
2307 if (index < 0) {
2308 fprintf(stderr, "qemu: '%s' invalid index\n", str);
2309 return -1;
2313 if (get_param_value(buf, sizeof(buf), "cyls", str)) {
2314 cyls = strtol(buf, NULL, 0);
2317 if (get_param_value(buf, sizeof(buf), "heads", str)) {
2318 heads = strtol(buf, NULL, 0);
2321 if (get_param_value(buf, sizeof(buf), "secs", str)) {
2322 secs = strtol(buf, NULL, 0);
2325 if (cyls || heads || secs) {
2326 if (cyls < 1 || cyls > 16383) {
2327 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str);
2328 return -1;
2330 if (heads < 1 || heads > 16) {
2331 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str);
2332 return -1;
2334 if (secs < 1 || secs > 63) {
2335 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str);
2336 return -1;
2340 if (get_param_value(buf, sizeof(buf), "trans", str)) {
2341 if (!cyls) {
2342 fprintf(stderr,
2343 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2344 str);
2345 return -1;
2347 if (!strcmp(buf, "none"))
2348 translation = BIOS_ATA_TRANSLATION_NONE;
2349 else if (!strcmp(buf, "lba"))
2350 translation = BIOS_ATA_TRANSLATION_LBA;
2351 else if (!strcmp(buf, "auto"))
2352 translation = BIOS_ATA_TRANSLATION_AUTO;
2353 else {
2354 fprintf(stderr, "qemu: '%s' invalid translation type\n", str);
2355 return -1;
2359 if (get_param_value(buf, sizeof(buf), "media", str)) {
2360 if (!strcmp(buf, "disk")) {
2361 media = MEDIA_DISK;
2362 } else if (!strcmp(buf, "cdrom")) {
2363 if (cyls || secs || heads) {
2364 fprintf(stderr,
2365 "qemu: '%s' invalid physical CHS format\n", str);
2366 return -1;
2368 media = MEDIA_CDROM;
2369 } else {
2370 fprintf(stderr, "qemu: '%s' invalid media\n", str);
2371 return -1;
2375 if (get_param_value(buf, sizeof(buf), "snapshot", str)) {
2376 if (!strcmp(buf, "on"))
2377 snapshot = 1;
2378 else if (!strcmp(buf, "off"))
2379 snapshot = 0;
2380 else {
2381 fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str);
2382 return -1;
2386 if (get_param_value(buf, sizeof(buf), "cache", str)) {
2387 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2388 cache = 0;
2389 else if (!strcmp(buf, "writethrough"))
2390 cache = 1;
2391 else if (!strcmp(buf, "writeback"))
2392 cache = 2;
2393 else {
2394 fprintf(stderr, "qemu: invalid cache option\n");
2395 return -1;
2399 if (get_param_value(buf, sizeof(buf), "format", str)) {
2400 if (strcmp(buf, "?") == 0) {
2401 fprintf(stderr, "qemu: Supported formats:");
2402 bdrv_iterate_format(bdrv_format_print, NULL);
2403 fprintf(stderr, "\n");
2404 return -1;
2406 drv = bdrv_find_format(buf);
2407 if (!drv) {
2408 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2409 return -1;
2413 if (arg->file == NULL)
2414 get_param_value(file, sizeof(file), "file", str);
2415 else
2416 pstrcpy(file, sizeof(file), arg->file);
2418 /* compute bus and unit according index */
2420 if (index != -1) {
2421 if (bus_id != 0 || unit_id != -1) {
2422 fprintf(stderr,
2423 "qemu: '%s' index cannot be used with bus and unit\n", str);
2424 return -1;
2426 if (max_devs == 0)
2428 unit_id = index;
2429 bus_id = 0;
2430 } else {
2431 unit_id = index % max_devs;
2432 bus_id = index / max_devs;
2436 /* if user doesn't specify a unit_id,
2437 * try to find the first free
2440 if (unit_id == -1) {
2441 unit_id = 0;
2442 while (drive_get_index(type, bus_id, unit_id) != -1) {
2443 unit_id++;
2444 if (max_devs && unit_id >= max_devs) {
2445 unit_id -= max_devs;
2446 bus_id++;
2451 /* check unit id */
2453 if (max_devs && unit_id >= max_devs) {
2454 fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n",
2455 str, unit_id, max_devs - 1);
2456 return -1;
2460 * ignore multiple definitions
2463 if (drive_get_index(type, bus_id, unit_id) != -1)
2464 return 0;
2466 /* init */
2468 if (type == IF_IDE || type == IF_SCSI)
2469 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2470 if (max_devs)
2471 snprintf(buf, sizeof(buf), "%s%i%s%i",
2472 devname, bus_id, mediastr, unit_id);
2473 else
2474 snprintf(buf, sizeof(buf), "%s%s%i",
2475 devname, mediastr, unit_id);
2476 bdrv = bdrv_new(buf);
2477 drives_table[nb_drives].bdrv = bdrv;
2478 drives_table[nb_drives].type = type;
2479 drives_table[nb_drives].bus = bus_id;
2480 drives_table[nb_drives].unit = unit_id;
2481 nb_drives++;
2483 switch(type) {
2484 case IF_IDE:
2485 case IF_SCSI:
2486 switch(media) {
2487 case MEDIA_DISK:
2488 if (cyls != 0) {
2489 bdrv_set_geometry_hint(bdrv, cyls, heads, secs);
2490 bdrv_set_translation_hint(bdrv, translation);
2492 break;
2493 case MEDIA_CDROM:
2494 bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
2495 break;
2497 break;
2498 case IF_SD:
2499 /* FIXME: This isn't really a floppy, but it's a reasonable
2500 approximation. */
2501 case IF_FLOPPY:
2502 bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY);
2503 break;
2504 case IF_PFLASH:
2505 case IF_MTD:
2506 case IF_VIRTIO:
2507 break;
2509 if (!file[0])
2510 return 0;
2511 bdrv_flags = 0;
2512 if (snapshot) {
2513 bdrv_flags |= BDRV_O_SNAPSHOT;
2514 cache = 2; /* always use write-back with snapshot */
2516 if (cache == 0) /* no caching */
2517 bdrv_flags |= BDRV_O_NOCACHE;
2518 else if (cache == 2) /* write-back */
2519 bdrv_flags |= BDRV_O_CACHE_WB;
2520 else if (cache == 3) /* not specified */
2521 bdrv_flags |= BDRV_O_CACHE_DEF;
2522 if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0 || qemu_key_check(bdrv, file)) {
2523 fprintf(stderr, "qemu: could not open disk image %s\n",
2524 file);
2525 return -1;
2527 return 0;
2530 /***********************************************************/
2531 /* USB devices */
2533 static USBPort *used_usb_ports;
2534 static USBPort *free_usb_ports;
2536 /* ??? Maybe change this to register a hub to keep track of the topology. */
2537 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
2538 usb_attachfn attach)
2540 port->opaque = opaque;
2541 port->index = index;
2542 port->attach = attach;
2543 port->next = free_usb_ports;
2544 free_usb_ports = port;
2547 int usb_device_add_dev(USBDevice *dev)
2549 USBPort *port;
2551 /* Find a USB port to add the device to. */
2552 port = free_usb_ports;
2553 if (!port->next) {
2554 USBDevice *hub;
2556 /* Create a new hub and chain it on. */
2557 free_usb_ports = NULL;
2558 port->next = used_usb_ports;
2559 used_usb_ports = port;
2561 hub = usb_hub_init(VM_USB_HUB_SIZE);
2562 usb_attach(port, hub);
2563 port = free_usb_ports;
2566 free_usb_ports = port->next;
2567 port->next = used_usb_ports;
2568 used_usb_ports = port;
2569 usb_attach(port, dev);
2570 return 0;
2573 static int usb_device_add(const char *devname)
2575 const char *p;
2576 USBDevice *dev;
2578 if (!free_usb_ports)
2579 return -1;
2581 if (strstart(devname, "host:", &p)) {
2582 dev = usb_host_device_open(p);
2583 } else if (!strcmp(devname, "mouse")) {
2584 dev = usb_mouse_init();
2585 } else if (!strcmp(devname, "tablet")) {
2586 dev = usb_tablet_init();
2587 } else if (!strcmp(devname, "keyboard")) {
2588 dev = usb_keyboard_init();
2589 } else if (strstart(devname, "disk:", &p)) {
2590 dev = usb_msd_init(p);
2591 } else if (!strcmp(devname, "wacom-tablet")) {
2592 dev = usb_wacom_init();
2593 } else if (strstart(devname, "serial:", &p)) {
2594 dev = usb_serial_init(p);
2595 #ifdef CONFIG_BRLAPI
2596 } else if (!strcmp(devname, "braille")) {
2597 dev = usb_baum_init();
2598 #endif
2599 } else if (strstart(devname, "net:", &p)) {
2600 int nic = nb_nics;
2602 if (net_client_init("nic", p) < 0)
2603 return -1;
2604 nd_table[nic].model = "usb";
2605 dev = usb_net_init(&nd_table[nic]);
2606 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2607 dev = usb_bt_init(devname[2] ? hci_init(p) :
2608 bt_new_hci(qemu_find_bt_vlan(0)));
2609 } else {
2610 return -1;
2612 if (!dev)
2613 return -1;
2615 return usb_device_add_dev(dev);
2618 int usb_device_del_addr(int bus_num, int addr)
2620 USBPort *port;
2621 USBPort **lastp;
2622 USBDevice *dev;
2624 if (!used_usb_ports)
2625 return -1;
2627 if (bus_num != 0)
2628 return -1;
2630 lastp = &used_usb_ports;
2631 port = used_usb_ports;
2632 while (port && port->dev->addr != addr) {
2633 lastp = &port->next;
2634 port = port->next;
2637 if (!port)
2638 return -1;
2640 dev = port->dev;
2641 *lastp = port->next;
2642 usb_attach(port, NULL);
2643 dev->handle_destroy(dev);
2644 port->next = free_usb_ports;
2645 free_usb_ports = port;
2646 return 0;
2649 static int usb_device_del(const char *devname)
2651 int bus_num, addr;
2652 const char *p;
2654 if (strstart(devname, "host:", &p))
2655 return usb_host_device_close(p);
2657 if (!used_usb_ports)
2658 return -1;
2660 p = strchr(devname, '.');
2661 if (!p)
2662 return -1;
2663 bus_num = strtoul(devname, NULL, 0);
2664 addr = strtoul(p + 1, NULL, 0);
2666 return usb_device_del_addr(bus_num, addr);
2669 void do_usb_add(const char *devname)
2671 usb_device_add(devname);
2674 void do_usb_del(const char *devname)
2676 usb_device_del(devname);
2679 void usb_info(void)
2681 USBDevice *dev;
2682 USBPort *port;
2683 const char *speed_str;
2685 if (!usb_enabled) {
2686 term_printf("USB support not enabled\n");
2687 return;
2690 for (port = used_usb_ports; port; port = port->next) {
2691 dev = port->dev;
2692 if (!dev)
2693 continue;
2694 switch(dev->speed) {
2695 case USB_SPEED_LOW:
2696 speed_str = "1.5";
2697 break;
2698 case USB_SPEED_FULL:
2699 speed_str = "12";
2700 break;
2701 case USB_SPEED_HIGH:
2702 speed_str = "480";
2703 break;
2704 default:
2705 speed_str = "?";
2706 break;
2708 term_printf(" Device %d.%d, Speed %s Mb/s, Product %s\n",
2709 0, dev->addr, speed_str, dev->devname);
2713 /***********************************************************/
2714 /* PCMCIA/Cardbus */
2716 static struct pcmcia_socket_entry_s {
2717 struct pcmcia_socket_s *socket;
2718 struct pcmcia_socket_entry_s *next;
2719 } *pcmcia_sockets = 0;
2721 void pcmcia_socket_register(struct pcmcia_socket_s *socket)
2723 struct pcmcia_socket_entry_s *entry;
2725 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2726 entry->socket = socket;
2727 entry->next = pcmcia_sockets;
2728 pcmcia_sockets = entry;
2731 void pcmcia_socket_unregister(struct pcmcia_socket_s *socket)
2733 struct pcmcia_socket_entry_s *entry, **ptr;
2735 ptr = &pcmcia_sockets;
2736 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2737 if (entry->socket == socket) {
2738 *ptr = entry->next;
2739 qemu_free(entry);
2743 void pcmcia_info(void)
2745 struct pcmcia_socket_entry_s *iter;
2746 if (!pcmcia_sockets)
2747 term_printf("No PCMCIA sockets\n");
2749 for (iter = pcmcia_sockets; iter; iter = iter->next)
2750 term_printf("%s: %s\n", iter->socket->slot_string,
2751 iter->socket->attached ? iter->socket->card_string :
2752 "Empty");
2755 /***********************************************************/
2756 /* dumb display */
2758 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
2762 static void dumb_resize(DisplayState *ds, int w, int h)
2766 static void dumb_display_init(DisplayState *ds)
2768 ds->data = NULL;
2769 ds->linesize = 0;
2770 ds->depth = 0;
2771 ds->dpy_update = dumb_update;
2772 ds->dpy_resize = dumb_resize;
2773 ds->dpy_refresh = NULL;
2774 ds->gui_timer_interval = 0;
2775 ds->idle = 1;
2778 /***********************************************************/
2779 /* I/O handling */
2781 #define MAX_IO_HANDLERS 64
2783 typedef struct IOHandlerRecord {
2784 int fd;
2785 IOCanRWHandler *fd_read_poll;
2786 IOHandler *fd_read;
2787 IOHandler *fd_write;
2788 int deleted;
2789 void *opaque;
2790 /* temporary data */
2791 struct pollfd *ufd;
2792 struct IOHandlerRecord *next;
2793 } IOHandlerRecord;
2795 static IOHandlerRecord *first_io_handler;
2797 /* XXX: fd_read_poll should be suppressed, but an API change is
2798 necessary in the character devices to suppress fd_can_read(). */
2799 int qemu_set_fd_handler2(int fd,
2800 IOCanRWHandler *fd_read_poll,
2801 IOHandler *fd_read,
2802 IOHandler *fd_write,
2803 void *opaque)
2805 IOHandlerRecord **pioh, *ioh;
2807 if (!fd_read && !fd_write) {
2808 pioh = &first_io_handler;
2809 for(;;) {
2810 ioh = *pioh;
2811 if (ioh == NULL)
2812 break;
2813 if (ioh->fd == fd) {
2814 ioh->deleted = 1;
2815 break;
2817 pioh = &ioh->next;
2819 } else {
2820 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2821 if (ioh->fd == fd)
2822 goto found;
2824 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2825 if (!ioh)
2826 return -1;
2827 ioh->next = first_io_handler;
2828 first_io_handler = ioh;
2829 found:
2830 ioh->fd = fd;
2831 ioh->fd_read_poll = fd_read_poll;
2832 ioh->fd_read = fd_read;
2833 ioh->fd_write = fd_write;
2834 ioh->opaque = opaque;
2835 ioh->deleted = 0;
2837 return 0;
2840 int qemu_set_fd_handler(int fd,
2841 IOHandler *fd_read,
2842 IOHandler *fd_write,
2843 void *opaque)
2845 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2848 #ifdef _WIN32
2849 /***********************************************************/
2850 /* Polling handling */
2852 typedef struct PollingEntry {
2853 PollingFunc *func;
2854 void *opaque;
2855 struct PollingEntry *next;
2856 } PollingEntry;
2858 static PollingEntry *first_polling_entry;
2860 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2862 PollingEntry **ppe, *pe;
2863 pe = qemu_mallocz(sizeof(PollingEntry));
2864 if (!pe)
2865 return -1;
2866 pe->func = func;
2867 pe->opaque = opaque;
2868 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2869 *ppe = pe;
2870 return 0;
2873 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2875 PollingEntry **ppe, *pe;
2876 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2877 pe = *ppe;
2878 if (pe->func == func && pe->opaque == opaque) {
2879 *ppe = pe->next;
2880 qemu_free(pe);
2881 break;
2886 /***********************************************************/
2887 /* Wait objects support */
2888 typedef struct WaitObjects {
2889 int num;
2890 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2891 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2892 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2893 } WaitObjects;
2895 static WaitObjects wait_objects = {0};
2897 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2899 WaitObjects *w = &wait_objects;
2901 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2902 return -1;
2903 w->events[w->num] = handle;
2904 w->func[w->num] = func;
2905 w->opaque[w->num] = opaque;
2906 w->num++;
2907 return 0;
2910 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2912 int i, found;
2913 WaitObjects *w = &wait_objects;
2915 found = 0;
2916 for (i = 0; i < w->num; i++) {
2917 if (w->events[i] == handle)
2918 found = 1;
2919 if (found) {
2920 w->events[i] = w->events[i + 1];
2921 w->func[i] = w->func[i + 1];
2922 w->opaque[i] = w->opaque[i + 1];
2925 if (found)
2926 w->num--;
2928 #endif
2930 /***********************************************************/
2931 /* ram save/restore */
2933 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2935 int v;
2937 v = qemu_get_byte(f);
2938 switch(v) {
2939 case 0:
2940 if (qemu_get_buffer(f, buf, len) != len)
2941 return -EIO;
2942 break;
2943 case 1:
2944 v = qemu_get_byte(f);
2945 memset(buf, v, len);
2946 break;
2947 default:
2948 return -EINVAL;
2951 if (qemu_file_has_error(f))
2952 return -EIO;
2954 return 0;
2957 static int ram_load_v1(QEMUFile *f, void *opaque)
2959 int ret;
2960 ram_addr_t i;
2962 if (qemu_get_be32(f) != phys_ram_size)
2963 return -EINVAL;
2964 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
2965 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
2966 if (ret)
2967 return ret;
2969 return 0;
2972 #define BDRV_HASH_BLOCK_SIZE 1024
2973 #define IOBUF_SIZE 4096
2974 #define RAM_CBLOCK_MAGIC 0xfabe
2976 typedef struct RamDecompressState {
2977 z_stream zstream;
2978 QEMUFile *f;
2979 uint8_t buf[IOBUF_SIZE];
2980 } RamDecompressState;
2982 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2984 int ret;
2985 memset(s, 0, sizeof(*s));
2986 s->f = f;
2987 ret = inflateInit(&s->zstream);
2988 if (ret != Z_OK)
2989 return -1;
2990 return 0;
2993 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2995 int ret, clen;
2997 s->zstream.avail_out = len;
2998 s->zstream.next_out = buf;
2999 while (s->zstream.avail_out > 0) {
3000 if (s->zstream.avail_in == 0) {
3001 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
3002 return -1;
3003 clen = qemu_get_be16(s->f);
3004 if (clen > IOBUF_SIZE)
3005 return -1;
3006 qemu_get_buffer(s->f, s->buf, clen);
3007 s->zstream.avail_in = clen;
3008 s->zstream.next_in = s->buf;
3010 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
3011 if (ret != Z_OK && ret != Z_STREAM_END) {
3012 return -1;
3015 return 0;
3018 static void ram_decompress_close(RamDecompressState *s)
3020 inflateEnd(&s->zstream);
3023 #define RAM_SAVE_FLAG_FULL 0x01
3024 #define RAM_SAVE_FLAG_COMPRESS 0x02
3025 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
3026 #define RAM_SAVE_FLAG_PAGE 0x08
3027 #define RAM_SAVE_FLAG_EOS 0x10
3029 static int is_dup_page(uint8_t *page, uint8_t ch)
3031 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
3032 uint32_t *array = (uint32_t *)page;
3033 int i;
3035 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
3036 if (array[i] != val)
3037 return 0;
3040 return 1;
3043 static int ram_save_block(QEMUFile *f)
3045 static ram_addr_t current_addr = 0;
3046 ram_addr_t saved_addr = current_addr;
3047 ram_addr_t addr = 0;
3048 int found = 0;
3050 while (addr < phys_ram_size) {
3051 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
3052 uint8_t ch;
3054 cpu_physical_memory_reset_dirty(current_addr,
3055 current_addr + TARGET_PAGE_SIZE,
3056 MIGRATION_DIRTY_FLAG);
3058 ch = *(phys_ram_base + current_addr);
3060 if (is_dup_page(phys_ram_base + current_addr, ch)) {
3061 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
3062 qemu_put_byte(f, ch);
3063 } else {
3064 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
3065 qemu_put_buffer(f, phys_ram_base + current_addr, TARGET_PAGE_SIZE);
3068 found = 1;
3069 break;
3071 addr += TARGET_PAGE_SIZE;
3072 current_addr = (saved_addr + addr) % phys_ram_size;
3075 return found;
3078 static ram_addr_t ram_save_threshold = 10;
3080 static ram_addr_t ram_save_remaining(void)
3082 ram_addr_t addr;
3083 ram_addr_t count = 0;
3085 for (addr = 0; addr < phys_ram_size; addr += TARGET_PAGE_SIZE) {
3086 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3087 count++;
3090 return count;
3093 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
3095 ram_addr_t addr;
3097 if (stage == 1) {
3098 /* Make sure all dirty bits are set */
3099 for (addr = 0; addr < phys_ram_size; addr += TARGET_PAGE_SIZE) {
3100 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3101 cpu_physical_memory_set_dirty(addr);
3104 /* Enable dirty memory tracking */
3105 cpu_physical_memory_set_dirty_tracking(1);
3107 qemu_put_be64(f, phys_ram_size | RAM_SAVE_FLAG_MEM_SIZE);
3110 while (!qemu_file_rate_limit(f)) {
3111 int ret;
3113 ret = ram_save_block(f);
3114 if (ret == 0) /* no more blocks */
3115 break;
3118 /* try transferring iterative blocks of memory */
3120 if (stage == 3) {
3121 cpu_physical_memory_set_dirty_tracking(0);
3123 /* flush all remaining blocks regardless of rate limiting */
3124 while (ram_save_block(f) != 0);
3127 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3129 return (stage == 2) && (ram_save_remaining() < ram_save_threshold);
3132 static int ram_load_dead(QEMUFile *f, void *opaque)
3134 RamDecompressState s1, *s = &s1;
3135 uint8_t buf[10];
3136 ram_addr_t i;
3138 if (ram_decompress_open(s, f) < 0)
3139 return -EINVAL;
3140 for(i = 0; i < phys_ram_size; i+= BDRV_HASH_BLOCK_SIZE) {
3141 if (ram_decompress_buf(s, buf, 1) < 0) {
3142 fprintf(stderr, "Error while reading ram block header\n");
3143 goto error;
3145 if (buf[0] == 0) {
3146 if (ram_decompress_buf(s, phys_ram_base + i, BDRV_HASH_BLOCK_SIZE) < 0) {
3147 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
3148 goto error;
3150 } else {
3151 error:
3152 printf("Error block header\n");
3153 return -EINVAL;
3156 ram_decompress_close(s);
3158 return 0;
3161 static int ram_load(QEMUFile *f, void *opaque, int version_id)
3163 ram_addr_t addr;
3164 int flags;
3166 if (version_id == 1)
3167 return ram_load_v1(f, opaque);
3169 if (version_id == 2) {
3170 if (qemu_get_be32(f) != phys_ram_size)
3171 return -EINVAL;
3172 return ram_load_dead(f, opaque);
3175 if (version_id != 3)
3176 return -EINVAL;
3178 do {
3179 addr = qemu_get_be64(f);
3181 flags = addr & ~TARGET_PAGE_MASK;
3182 addr &= TARGET_PAGE_MASK;
3184 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
3185 if (addr != phys_ram_size)
3186 return -EINVAL;
3189 if (flags & RAM_SAVE_FLAG_FULL) {
3190 if (ram_load_dead(f, opaque) < 0)
3191 return -EINVAL;
3194 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3195 uint8_t ch = qemu_get_byte(f);
3196 memset(phys_ram_base + addr, ch, TARGET_PAGE_SIZE);
3197 } else if (flags & RAM_SAVE_FLAG_PAGE)
3198 qemu_get_buffer(f, phys_ram_base + addr, TARGET_PAGE_SIZE);
3199 } while (!(flags & RAM_SAVE_FLAG_EOS));
3201 return 0;
3204 void qemu_service_io(void)
3206 CPUState *env = cpu_single_env;
3207 if (env) {
3208 cpu_interrupt(env, CPU_INTERRUPT_EXIT);
3209 #ifdef USE_KQEMU
3210 if (env->kqemu_enabled) {
3211 kqemu_cpu_interrupt(env);
3213 #endif
3217 /***********************************************************/
3218 /* bottom halves (can be seen as timers which expire ASAP) */
3220 struct QEMUBH {
3221 QEMUBHFunc *cb;
3222 void *opaque;
3223 int scheduled;
3224 int idle;
3225 int deleted;
3226 QEMUBH *next;
3229 static QEMUBH *first_bh = NULL;
3231 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3233 QEMUBH *bh;
3234 bh = qemu_mallocz(sizeof(QEMUBH));
3235 if (!bh)
3236 return NULL;
3237 bh->cb = cb;
3238 bh->opaque = opaque;
3239 bh->next = first_bh;
3240 first_bh = bh;
3241 return bh;
3244 int qemu_bh_poll(void)
3246 QEMUBH *bh, **bhp;
3247 int ret;
3249 ret = 0;
3250 for (bh = first_bh; bh; bh = bh->next) {
3251 if (!bh->deleted && bh->scheduled) {
3252 bh->scheduled = 0;
3253 if (!bh->idle)
3254 ret = 1;
3255 bh->idle = 0;
3256 bh->cb(bh->opaque);
3260 /* remove deleted bhs */
3261 bhp = &first_bh;
3262 while (*bhp) {
3263 bh = *bhp;
3264 if (bh->deleted) {
3265 *bhp = bh->next;
3266 qemu_free(bh);
3267 } else
3268 bhp = &bh->next;
3271 return ret;
3274 void qemu_bh_schedule_idle(QEMUBH *bh)
3276 if (bh->scheduled)
3277 return;
3278 bh->scheduled = 1;
3279 bh->idle = 1;
3282 void qemu_bh_schedule(QEMUBH *bh)
3284 CPUState *env = cpu_single_env;
3285 if (bh->scheduled)
3286 return;
3287 bh->scheduled = 1;
3288 bh->idle = 0;
3289 /* stop the currently executing CPU to execute the BH ASAP */
3290 if (env) {
3291 cpu_interrupt(env, CPU_INTERRUPT_EXIT);
3295 void qemu_bh_cancel(QEMUBH *bh)
3297 bh->scheduled = 0;
3300 void qemu_bh_delete(QEMUBH *bh)
3302 bh->scheduled = 0;
3303 bh->deleted = 1;
3306 static void qemu_bh_update_timeout(int *timeout)
3308 QEMUBH *bh;
3310 for (bh = first_bh; bh; bh = bh->next) {
3311 if (!bh->deleted && bh->scheduled) {
3312 if (bh->idle) {
3313 /* idle bottom halves will be polled at least
3314 * every 10ms */
3315 *timeout = MIN(10, *timeout);
3316 } else {
3317 /* non-idle bottom halves will be executed
3318 * immediately */
3319 *timeout = 0;
3320 break;
3326 /***********************************************************/
3327 /* machine registration */
3329 static QEMUMachine *first_machine = NULL;
3331 int qemu_register_machine(QEMUMachine *m)
3333 QEMUMachine **pm;
3334 pm = &first_machine;
3335 while (*pm != NULL)
3336 pm = &(*pm)->next;
3337 m->next = NULL;
3338 *pm = m;
3339 return 0;
3342 static QEMUMachine *find_machine(const char *name)
3344 QEMUMachine *m;
3346 for(m = first_machine; m != NULL; m = m->next) {
3347 if (!strcmp(m->name, name))
3348 return m;
3350 return NULL;
3353 /***********************************************************/
3354 /* main execution loop */
3356 static void gui_update(void *opaque)
3358 DisplayState *ds = opaque;
3359 ds->dpy_refresh(ds);
3360 qemu_mod_timer(ds->gui_timer,
3361 (ds->gui_timer_interval ?
3362 ds->gui_timer_interval :
3363 GUI_REFRESH_INTERVAL)
3364 + qemu_get_clock(rt_clock));
3367 struct vm_change_state_entry {
3368 VMChangeStateHandler *cb;
3369 void *opaque;
3370 LIST_ENTRY (vm_change_state_entry) entries;
3373 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3375 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3376 void *opaque)
3378 VMChangeStateEntry *e;
3380 e = qemu_mallocz(sizeof (*e));
3381 if (!e)
3382 return NULL;
3384 e->cb = cb;
3385 e->opaque = opaque;
3386 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3387 return e;
3390 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3392 LIST_REMOVE (e, entries);
3393 qemu_free (e);
3396 static void vm_state_notify(int running)
3398 VMChangeStateEntry *e;
3400 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3401 e->cb(e->opaque, running);
3405 /* XXX: support several handlers */
3406 static VMStopHandler *vm_stop_cb;
3407 static void *vm_stop_opaque;
3409 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
3411 vm_stop_cb = cb;
3412 vm_stop_opaque = opaque;
3413 return 0;
3416 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
3418 vm_stop_cb = NULL;
3421 void vm_start(void)
3423 if (!vm_running) {
3424 cpu_enable_ticks();
3425 vm_running = 1;
3426 vm_state_notify(1);
3427 qemu_rearm_alarm_timer(alarm_timer);
3431 void vm_stop(int reason)
3433 if (vm_running) {
3434 cpu_disable_ticks();
3435 vm_running = 0;
3436 if (reason != 0) {
3437 if (vm_stop_cb) {
3438 vm_stop_cb(vm_stop_opaque, reason);
3441 vm_state_notify(0);
3445 /* reset/shutdown handler */
3447 typedef struct QEMUResetEntry {
3448 QEMUResetHandler *func;
3449 void *opaque;
3450 struct QEMUResetEntry *next;
3451 } QEMUResetEntry;
3453 static QEMUResetEntry *first_reset_entry;
3454 static int reset_requested;
3455 static int shutdown_requested;
3456 static int powerdown_requested;
3458 int qemu_shutdown_requested(void)
3460 int r = shutdown_requested;
3461 shutdown_requested = 0;
3462 return r;
3465 int qemu_reset_requested(void)
3467 int r = reset_requested;
3468 reset_requested = 0;
3469 return r;
3472 int qemu_powerdown_requested(void)
3474 int r = powerdown_requested;
3475 powerdown_requested = 0;
3476 return r;
3479 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3481 QEMUResetEntry **pre, *re;
3483 pre = &first_reset_entry;
3484 while (*pre != NULL)
3485 pre = &(*pre)->next;
3486 re = qemu_mallocz(sizeof(QEMUResetEntry));
3487 re->func = func;
3488 re->opaque = opaque;
3489 re->next = NULL;
3490 *pre = re;
3493 void qemu_system_reset(void)
3495 QEMUResetEntry *re;
3497 /* reset all devices */
3498 for(re = first_reset_entry; re != NULL; re = re->next) {
3499 re->func(re->opaque);
3503 void qemu_system_reset_request(void)
3505 if (no_reboot) {
3506 shutdown_requested = 1;
3507 } else {
3508 reset_requested = 1;
3510 if (cpu_single_env)
3511 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
3514 void qemu_system_shutdown_request(void)
3516 shutdown_requested = 1;
3517 if (cpu_single_env)
3518 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
3521 void qemu_system_powerdown_request(void)
3523 powerdown_requested = 1;
3524 if (cpu_single_env)
3525 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
3528 #ifdef _WIN32
3529 void host_main_loop_wait(int *timeout)
3531 int ret, ret2, i;
3532 PollingEntry *pe;
3535 /* XXX: need to suppress polling by better using win32 events */
3536 ret = 0;
3537 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3538 ret |= pe->func(pe->opaque);
3540 if (ret == 0) {
3541 int err;
3542 WaitObjects *w = &wait_objects;
3544 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3545 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3546 if (w->func[ret - WAIT_OBJECT_0])
3547 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3549 /* Check for additional signaled events */
3550 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3552 /* Check if event is signaled */
3553 ret2 = WaitForSingleObject(w->events[i], 0);
3554 if(ret2 == WAIT_OBJECT_0) {
3555 if (w->func[i])
3556 w->func[i](w->opaque[i]);
3557 } else if (ret2 == WAIT_TIMEOUT) {
3558 } else {
3559 err = GetLastError();
3560 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3563 } else if (ret == WAIT_TIMEOUT) {
3564 } else {
3565 err = GetLastError();
3566 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3570 *timeout = 0;
3572 #else
3573 void host_main_loop_wait(int *timeout)
3576 #endif
3578 void main_loop_wait(int timeout)
3580 IOHandlerRecord *ioh;
3581 fd_set rfds, wfds, xfds;
3582 int ret, nfds;
3583 struct timeval tv;
3585 qemu_bh_update_timeout(&timeout);
3587 host_main_loop_wait(&timeout);
3589 /* poll any events */
3590 /* XXX: separate device handlers from system ones */
3591 nfds = -1;
3592 FD_ZERO(&rfds);
3593 FD_ZERO(&wfds);
3594 FD_ZERO(&xfds);
3595 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3596 if (ioh->deleted)
3597 continue;
3598 if (ioh->fd_read &&
3599 (!ioh->fd_read_poll ||
3600 ioh->fd_read_poll(ioh->opaque) != 0)) {
3601 FD_SET(ioh->fd, &rfds);
3602 if (ioh->fd > nfds)
3603 nfds = ioh->fd;
3605 if (ioh->fd_write) {
3606 FD_SET(ioh->fd, &wfds);
3607 if (ioh->fd > nfds)
3608 nfds = ioh->fd;
3612 tv.tv_sec = timeout / 1000;
3613 tv.tv_usec = (timeout % 1000) * 1000;
3615 #if defined(CONFIG_SLIRP)
3616 if (slirp_is_inited()) {
3617 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3619 #endif
3620 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3621 if (ret > 0) {
3622 IOHandlerRecord **pioh;
3624 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3625 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3626 ioh->fd_read(ioh->opaque);
3628 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3629 ioh->fd_write(ioh->opaque);
3633 /* remove deleted IO handlers */
3634 pioh = &first_io_handler;
3635 while (*pioh) {
3636 ioh = *pioh;
3637 if (ioh->deleted) {
3638 *pioh = ioh->next;
3639 qemu_free(ioh);
3640 } else
3641 pioh = &ioh->next;
3644 #if defined(CONFIG_SLIRP)
3645 if (slirp_is_inited()) {
3646 if (ret < 0) {
3647 FD_ZERO(&rfds);
3648 FD_ZERO(&wfds);
3649 FD_ZERO(&xfds);
3651 slirp_select_poll(&rfds, &wfds, &xfds);
3653 #endif
3655 /* vm time timers */
3656 if (vm_running && likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
3657 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
3658 qemu_get_clock(vm_clock));
3660 /* real time timers */
3661 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
3662 qemu_get_clock(rt_clock));
3664 /* Check bottom-halves last in case any of the earlier events triggered
3665 them. */
3666 qemu_bh_poll();
3670 static int main_loop(void)
3672 int ret, timeout;
3673 #ifdef CONFIG_PROFILER
3674 int64_t ti;
3675 #endif
3676 CPUState *env;
3678 cur_cpu = first_cpu;
3679 next_cpu = cur_cpu->next_cpu ?: first_cpu;
3680 for(;;) {
3681 if (vm_running) {
3683 for(;;) {
3684 /* get next cpu */
3685 env = next_cpu;
3686 #ifdef CONFIG_PROFILER
3687 ti = profile_getclock();
3688 #endif
3689 if (use_icount) {
3690 int64_t count;
3691 int decr;
3692 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3693 env->icount_decr.u16.low = 0;
3694 env->icount_extra = 0;
3695 count = qemu_next_deadline();
3696 count = (count + (1 << icount_time_shift) - 1)
3697 >> icount_time_shift;
3698 qemu_icount += count;
3699 decr = (count > 0xffff) ? 0xffff : count;
3700 count -= decr;
3701 env->icount_decr.u16.low = decr;
3702 env->icount_extra = count;
3704 ret = cpu_exec(env);
3705 #ifdef CONFIG_PROFILER
3706 qemu_time += profile_getclock() - ti;
3707 #endif
3708 if (use_icount) {
3709 /* Fold pending instructions back into the
3710 instruction counter, and clear the interrupt flag. */
3711 qemu_icount -= (env->icount_decr.u16.low
3712 + env->icount_extra);
3713 env->icount_decr.u32 = 0;
3714 env->icount_extra = 0;
3716 next_cpu = env->next_cpu ?: first_cpu;
3717 if (event_pending && likely(ret != EXCP_DEBUG)) {
3718 ret = EXCP_INTERRUPT;
3719 event_pending = 0;
3720 break;
3722 if (ret == EXCP_HLT) {
3723 /* Give the next CPU a chance to run. */
3724 cur_cpu = env;
3725 continue;
3727 if (ret != EXCP_HALTED)
3728 break;
3729 /* all CPUs are halted ? */
3730 if (env == cur_cpu)
3731 break;
3733 cur_cpu = env;
3735 if (shutdown_requested) {
3736 ret = EXCP_INTERRUPT;
3737 if (no_shutdown) {
3738 vm_stop(0);
3739 no_shutdown = 0;
3741 else
3742 break;
3744 if (reset_requested) {
3745 reset_requested = 0;
3746 qemu_system_reset();
3747 ret = EXCP_INTERRUPT;
3749 if (powerdown_requested) {
3750 powerdown_requested = 0;
3751 qemu_system_powerdown();
3752 ret = EXCP_INTERRUPT;
3754 if (unlikely(ret == EXCP_DEBUG)) {
3755 gdb_set_stop_cpu(cur_cpu);
3756 vm_stop(EXCP_DEBUG);
3758 /* If all cpus are halted then wait until the next IRQ */
3759 /* XXX: use timeout computed from timers */
3760 if (ret == EXCP_HALTED) {
3761 if (use_icount) {
3762 int64_t add;
3763 int64_t delta;
3764 /* Advance virtual time to the next event. */
3765 if (use_icount == 1) {
3766 /* When not using an adaptive execution frequency
3767 we tend to get badly out of sync with real time,
3768 so just delay for a reasonable amount of time. */
3769 delta = 0;
3770 } else {
3771 delta = cpu_get_icount() - cpu_get_clock();
3773 if (delta > 0) {
3774 /* If virtual time is ahead of real time then just
3775 wait for IO. */
3776 timeout = (delta / 1000000) + 1;
3777 } else {
3778 /* Wait for either IO to occur or the next
3779 timer event. */
3780 add = qemu_next_deadline();
3781 /* We advance the timer before checking for IO.
3782 Limit the amount we advance so that early IO
3783 activity won't get the guest too far ahead. */
3784 if (add > 10000000)
3785 add = 10000000;
3786 delta += add;
3787 add = (add + (1 << icount_time_shift) - 1)
3788 >> icount_time_shift;
3789 qemu_icount += add;
3790 timeout = delta / 1000000;
3791 if (timeout < 0)
3792 timeout = 0;
3794 } else {
3795 timeout = 5000;
3797 } else {
3798 timeout = 0;
3800 } else {
3801 if (shutdown_requested) {
3802 ret = EXCP_INTERRUPT;
3803 break;
3805 timeout = 5000;
3807 #ifdef CONFIG_PROFILER
3808 ti = profile_getclock();
3809 #endif
3810 main_loop_wait(timeout);
3811 #ifdef CONFIG_PROFILER
3812 dev_time += profile_getclock() - ti;
3813 #endif
3815 cpu_disable_ticks();
3816 return ret;
3819 static void help(int exitcode)
3821 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
3822 "usage: %s [options] [disk_image]\n"
3823 "\n"
3824 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
3825 "\n"
3826 "Standard options:\n"
3827 "-M machine select emulated machine (-M ? for list)\n"
3828 "-cpu cpu select CPU (-cpu ? for list)\n"
3829 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
3830 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
3831 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
3832 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
3833 "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
3834 " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n"
3835 " [,cache=writethrough|writeback|none][,format=f]\n"
3836 " use 'file' as a drive image\n"
3837 "-mtdblock file use 'file' as on-board Flash memory image\n"
3838 "-sd file use 'file' as SecureDigital card image\n"
3839 "-pflash file use 'file' as a parallel flash image\n"
3840 "-boot [a|c|d|n] boot on floppy (a), hard disk (c), CD-ROM (d), or network (n)\n"
3841 "-snapshot write to temporary files instead of disk image files\n"
3842 #ifdef CONFIG_SDL
3843 "-no-frame open SDL window without a frame and window decorations\n"
3844 "-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n"
3845 "-no-quit disable SDL window close capability\n"
3846 #endif
3847 #ifdef TARGET_I386
3848 "-no-fd-bootchk disable boot signature checking for floppy disks\n"
3849 #endif
3850 "-m megs set virtual RAM size to megs MB [default=%d]\n"
3851 "-smp n set the number of CPUs to 'n' [default=1]\n"
3852 "-nographic disable graphical output and redirect serial I/Os to console\n"
3853 "-portrait rotate graphical output 90 deg left (only PXA LCD)\n"
3854 #ifndef _WIN32
3855 "-k language use keyboard layout (for example \"fr\" for French)\n"
3856 #endif
3857 #ifdef HAS_AUDIO
3858 "-audio-help print list of audio drivers and their options\n"
3859 "-soundhw c1,... enable audio support\n"
3860 " and only specified sound cards (comma separated list)\n"
3861 " use -soundhw ? to get the list of supported cards\n"
3862 " use -soundhw all to enable all of them\n"
3863 #endif
3864 "-vga [std|cirrus|vmware]\n"
3865 " select video card type\n"
3866 "-localtime set the real time clock to local time [default=utc]\n"
3867 "-full-screen start in full screen\n"
3868 #ifdef TARGET_I386
3869 "-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n"
3870 #endif
3871 "-usb enable the USB driver (will be the default soon)\n"
3872 "-usbdevice name add the host or guest USB device 'name'\n"
3873 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
3874 "-g WxH[xDEPTH] Set the initial graphical resolution and depth\n"
3875 #endif
3876 "-name string set the name of the guest\n"
3877 "-uuid %%08x-%%04x-%%04x-%%04x-%%012x specify machine UUID\n"
3878 "\n"
3879 "Network options:\n"
3880 "-net nic[,vlan=n][,macaddr=addr][,model=type]\n"
3881 " create a new Network Interface Card and connect it to VLAN 'n'\n"
3882 #ifdef CONFIG_SLIRP
3883 "-net user[,vlan=n][,hostname=host]\n"
3884 " connect the user mode network stack to VLAN 'n' and send\n"
3885 " hostname 'host' to DHCP clients\n"
3886 #endif
3887 #ifdef _WIN32
3888 "-net tap[,vlan=n],ifname=name\n"
3889 " connect the host TAP network interface to VLAN 'n'\n"
3890 #else
3891 "-net tap[,vlan=n][,fd=h][,ifname=name][,script=file][,downscript=dfile]\n"
3892 " connect the host TAP network interface to VLAN 'n' and use the\n"
3893 " network scripts 'file' (default=%s)\n"
3894 " and 'dfile' (default=%s);\n"
3895 " use '[down]script=no' to disable script execution;\n"
3896 " use 'fd=h' to connect to an already opened TAP interface\n"
3897 #endif
3898 "-net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port]\n"
3899 " connect the vlan 'n' to another VLAN using a socket connection\n"
3900 "-net socket[,vlan=n][,fd=h][,mcast=maddr:port]\n"
3901 " connect the vlan 'n' to multicast maddr and port\n"
3902 #ifdef CONFIG_VDE
3903 "-net vde[,vlan=n][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n"
3904 " connect the vlan 'n' to port 'n' of a vde switch running\n"
3905 " on host and listening for incoming connections on 'socketpath'.\n"
3906 " Use group 'groupname' and mode 'octalmode' to change default\n"
3907 " ownership and permissions for communication port.\n"
3908 #endif
3909 "-net none use it alone to have zero network devices; if no -net option\n"
3910 " is provided, the default is '-net nic -net user'\n"
3911 "\n"
3912 "-bt hci,null Dumb bluetooth HCI - doesn't respond to commands\n"
3913 "-bt hci,host[:id]\n"
3914 " Use host's HCI with the given name\n"
3915 "-bt hci[,vlan=n]\n"
3916 " Emulate a standard HCI in virtual scatternet 'n'\n"
3917 "-bt vhci[,vlan=n]\n"
3918 " Add host computer to virtual scatternet 'n' using VHCI\n"
3919 "-bt device:dev[,vlan=n]\n"
3920 " Emulate a bluetooth device 'dev' in scatternet 'n'\n"
3921 "\n"
3922 #ifdef CONFIG_SLIRP
3923 "-tftp dir allow tftp access to files in dir [-net user]\n"
3924 "-bootp file advertise file in BOOTP replies\n"
3925 #ifndef _WIN32
3926 "-smb dir allow SMB access to files in 'dir' [-net user]\n"
3927 #endif
3928 "-redir [tcp|udp]:host-port:[guest-host]:guest-port\n"
3929 " redirect TCP or UDP connections from host to guest [-net user]\n"
3930 #endif
3931 "\n"
3932 "Linux boot specific:\n"
3933 "-kernel bzImage use 'bzImage' as kernel image\n"
3934 "-append cmdline use 'cmdline' as kernel command line\n"
3935 "-initrd file use 'file' as initial ram disk\n"
3936 "\n"
3937 "Debug/Expert options:\n"
3938 "-monitor dev redirect the monitor to char device 'dev'\n"
3939 "-serial dev redirect the serial port to char device 'dev'\n"
3940 "-parallel dev redirect the parallel port to char device 'dev'\n"
3941 "-pidfile file Write PID to 'file'\n"
3942 "-S freeze CPU at startup (use 'c' to start execution)\n"
3943 "-s wait gdb connection to port\n"
3944 "-p port set gdb connection port [default=%s]\n"
3945 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
3946 "-hdachs c,h,s[,t] force hard disk 0 physical geometry and the optional BIOS\n"
3947 " translation (t=none or lba) (usually qemu can guess them)\n"
3948 "-L path set the directory for the BIOS, VGA BIOS and keymaps\n"
3949 #ifdef USE_KQEMU
3950 "-kernel-kqemu enable KQEMU full virtualization (default is user mode only)\n"
3951 "-no-kqemu disable KQEMU kernel module usage\n"
3952 #endif
3953 #ifdef CONFIG_KVM
3954 "-enable-kvm enable KVM full virtualization support\n"
3955 #endif
3956 #ifdef TARGET_I386
3957 "-no-acpi disable ACPI\n"
3958 #endif
3959 #ifdef CONFIG_CURSES
3960 "-curses use a curses/ncurses interface instead of SDL\n"
3961 #endif
3962 "-no-reboot exit instead of rebooting\n"
3963 "-no-shutdown stop before shutdown\n"
3964 "-loadvm [tag|id] start right away with a saved state (loadvm in monitor)\n"
3965 "-vnc display start a VNC server on display\n"
3966 #ifndef _WIN32
3967 "-daemonize daemonize QEMU after initializing\n"
3968 #endif
3969 "-option-rom rom load a file, rom, into the option ROM space\n"
3970 #ifdef TARGET_SPARC
3971 "-prom-env variable=value set OpenBIOS nvram variables\n"
3972 #endif
3973 "-clock force the use of the given methods for timer alarm.\n"
3974 " To see what timers are available use -clock ?\n"
3975 "-startdate select initial date of the clock\n"
3976 "-icount [N|auto]\n"
3977 " Enable virtual instruction counter with 2^N clock ticks per instruction\n"
3978 "\n"
3979 "During emulation, the following keys are useful:\n"
3980 "ctrl-alt-f toggle full screen\n"
3981 "ctrl-alt-n switch to virtual console 'n'\n"
3982 "ctrl-alt toggle mouse and keyboard grab\n"
3983 "\n"
3984 "When using -nographic, press 'ctrl-a h' to get some help.\n"
3986 "qemu",
3987 DEFAULT_RAM_SIZE,
3988 #ifndef _WIN32
3989 DEFAULT_NETWORK_SCRIPT,
3990 DEFAULT_NETWORK_DOWN_SCRIPT,
3991 #endif
3992 DEFAULT_GDBSTUB_PORT,
3993 "/tmp/qemu.log");
3994 exit(exitcode);
3997 #define HAS_ARG 0x0001
3999 enum {
4000 QEMU_OPTION_h,
4002 QEMU_OPTION_M,
4003 QEMU_OPTION_cpu,
4004 QEMU_OPTION_fda,
4005 QEMU_OPTION_fdb,
4006 QEMU_OPTION_hda,
4007 QEMU_OPTION_hdb,
4008 QEMU_OPTION_hdc,
4009 QEMU_OPTION_hdd,
4010 QEMU_OPTION_drive,
4011 QEMU_OPTION_cdrom,
4012 QEMU_OPTION_mtdblock,
4013 QEMU_OPTION_sd,
4014 QEMU_OPTION_pflash,
4015 QEMU_OPTION_boot,
4016 QEMU_OPTION_snapshot,
4017 #ifdef TARGET_I386
4018 QEMU_OPTION_no_fd_bootchk,
4019 #endif
4020 QEMU_OPTION_m,
4021 QEMU_OPTION_nographic,
4022 QEMU_OPTION_portrait,
4023 #ifdef HAS_AUDIO
4024 QEMU_OPTION_audio_help,
4025 QEMU_OPTION_soundhw,
4026 #endif
4028 QEMU_OPTION_net,
4029 QEMU_OPTION_tftp,
4030 QEMU_OPTION_bootp,
4031 QEMU_OPTION_smb,
4032 QEMU_OPTION_redir,
4033 QEMU_OPTION_bt,
4035 QEMU_OPTION_kernel,
4036 QEMU_OPTION_append,
4037 QEMU_OPTION_initrd,
4039 QEMU_OPTION_S,
4040 QEMU_OPTION_s,
4041 QEMU_OPTION_p,
4042 QEMU_OPTION_d,
4043 QEMU_OPTION_hdachs,
4044 QEMU_OPTION_L,
4045 QEMU_OPTION_bios,
4046 QEMU_OPTION_k,
4047 QEMU_OPTION_localtime,
4048 QEMU_OPTION_g,
4049 QEMU_OPTION_vga,
4050 QEMU_OPTION_echr,
4051 QEMU_OPTION_monitor,
4052 QEMU_OPTION_serial,
4053 QEMU_OPTION_parallel,
4054 QEMU_OPTION_loadvm,
4055 QEMU_OPTION_full_screen,
4056 QEMU_OPTION_no_frame,
4057 QEMU_OPTION_alt_grab,
4058 QEMU_OPTION_no_quit,
4059 QEMU_OPTION_pidfile,
4060 QEMU_OPTION_no_kqemu,
4061 QEMU_OPTION_kernel_kqemu,
4062 QEMU_OPTION_enable_kvm,
4063 QEMU_OPTION_win2k_hack,
4064 QEMU_OPTION_usb,
4065 QEMU_OPTION_usbdevice,
4066 QEMU_OPTION_smp,
4067 QEMU_OPTION_vnc,
4068 QEMU_OPTION_no_acpi,
4069 QEMU_OPTION_curses,
4070 QEMU_OPTION_no_reboot,
4071 QEMU_OPTION_no_shutdown,
4072 QEMU_OPTION_show_cursor,
4073 QEMU_OPTION_daemonize,
4074 QEMU_OPTION_option_rom,
4075 QEMU_OPTION_semihosting,
4076 QEMU_OPTION_name,
4077 QEMU_OPTION_prom_env,
4078 QEMU_OPTION_old_param,
4079 QEMU_OPTION_clock,
4080 QEMU_OPTION_startdate,
4081 QEMU_OPTION_tb_size,
4082 QEMU_OPTION_icount,
4083 QEMU_OPTION_uuid,
4084 QEMU_OPTION_incoming,
4087 typedef struct QEMUOption {
4088 const char *name;
4089 int flags;
4090 int index;
4091 } QEMUOption;
4093 static const QEMUOption qemu_options[] = {
4094 { "h", 0, QEMU_OPTION_h },
4095 { "help", 0, QEMU_OPTION_h },
4097 { "M", HAS_ARG, QEMU_OPTION_M },
4098 { "cpu", HAS_ARG, QEMU_OPTION_cpu },
4099 { "fda", HAS_ARG, QEMU_OPTION_fda },
4100 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
4101 { "hda", HAS_ARG, QEMU_OPTION_hda },
4102 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
4103 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
4104 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
4105 { "drive", HAS_ARG, QEMU_OPTION_drive },
4106 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
4107 { "mtdblock", HAS_ARG, QEMU_OPTION_mtdblock },
4108 { "sd", HAS_ARG, QEMU_OPTION_sd },
4109 { "pflash", HAS_ARG, QEMU_OPTION_pflash },
4110 { "boot", HAS_ARG, QEMU_OPTION_boot },
4111 { "snapshot", 0, QEMU_OPTION_snapshot },
4112 #ifdef TARGET_I386
4113 { "no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk },
4114 #endif
4115 { "m", HAS_ARG, QEMU_OPTION_m },
4116 { "nographic", 0, QEMU_OPTION_nographic },
4117 { "portrait", 0, QEMU_OPTION_portrait },
4118 { "k", HAS_ARG, QEMU_OPTION_k },
4119 #ifdef HAS_AUDIO
4120 { "audio-help", 0, QEMU_OPTION_audio_help },
4121 { "soundhw", HAS_ARG, QEMU_OPTION_soundhw },
4122 #endif
4124 { "net", HAS_ARG, QEMU_OPTION_net},
4125 #ifdef CONFIG_SLIRP
4126 { "tftp", HAS_ARG, QEMU_OPTION_tftp },
4127 { "bootp", HAS_ARG, QEMU_OPTION_bootp },
4128 #ifndef _WIN32
4129 { "smb", HAS_ARG, QEMU_OPTION_smb },
4130 #endif
4131 { "redir", HAS_ARG, QEMU_OPTION_redir },
4132 #endif
4133 { "bt", HAS_ARG, QEMU_OPTION_bt },
4135 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
4136 { "append", HAS_ARG, QEMU_OPTION_append },
4137 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
4139 { "S", 0, QEMU_OPTION_S },
4140 { "s", 0, QEMU_OPTION_s },
4141 { "p", HAS_ARG, QEMU_OPTION_p },
4142 { "d", HAS_ARG, QEMU_OPTION_d },
4143 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
4144 { "L", HAS_ARG, QEMU_OPTION_L },
4145 { "bios", HAS_ARG, QEMU_OPTION_bios },
4146 #ifdef USE_KQEMU
4147 { "no-kqemu", 0, QEMU_OPTION_no_kqemu },
4148 { "kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu },
4149 #endif
4150 #ifdef CONFIG_KVM
4151 { "enable-kvm", 0, QEMU_OPTION_enable_kvm },
4152 #endif
4153 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
4154 { "g", 1, QEMU_OPTION_g },
4155 #endif
4156 { "localtime", 0, QEMU_OPTION_localtime },
4157 { "vga", HAS_ARG, QEMU_OPTION_vga },
4158 { "echr", HAS_ARG, QEMU_OPTION_echr },
4159 { "monitor", HAS_ARG, QEMU_OPTION_monitor },
4160 { "serial", HAS_ARG, QEMU_OPTION_serial },
4161 { "parallel", HAS_ARG, QEMU_OPTION_parallel },
4162 { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
4163 { "full-screen", 0, QEMU_OPTION_full_screen },
4164 #ifdef CONFIG_SDL
4165 { "no-frame", 0, QEMU_OPTION_no_frame },
4166 { "alt-grab", 0, QEMU_OPTION_alt_grab },
4167 { "no-quit", 0, QEMU_OPTION_no_quit },
4168 #endif
4169 { "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
4170 { "win2k-hack", 0, QEMU_OPTION_win2k_hack },
4171 { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice },
4172 { "smp", HAS_ARG, QEMU_OPTION_smp },
4173 { "vnc", HAS_ARG, QEMU_OPTION_vnc },
4174 #ifdef CONFIG_CURSES
4175 { "curses", 0, QEMU_OPTION_curses },
4176 #endif
4177 { "uuid", HAS_ARG, QEMU_OPTION_uuid },
4179 /* temporary options */
4180 { "usb", 0, QEMU_OPTION_usb },
4181 { "no-acpi", 0, QEMU_OPTION_no_acpi },
4182 { "no-reboot", 0, QEMU_OPTION_no_reboot },
4183 { "no-shutdown", 0, QEMU_OPTION_no_shutdown },
4184 { "show-cursor", 0, QEMU_OPTION_show_cursor },
4185 { "daemonize", 0, QEMU_OPTION_daemonize },
4186 { "option-rom", HAS_ARG, QEMU_OPTION_option_rom },
4187 #if defined(TARGET_ARM) || defined(TARGET_M68K)
4188 { "semihosting", 0, QEMU_OPTION_semihosting },
4189 #endif
4190 { "name", HAS_ARG, QEMU_OPTION_name },
4191 #if defined(TARGET_SPARC)
4192 { "prom-env", HAS_ARG, QEMU_OPTION_prom_env },
4193 #endif
4194 #if defined(TARGET_ARM)
4195 { "old-param", 0, QEMU_OPTION_old_param },
4196 #endif
4197 { "clock", HAS_ARG, QEMU_OPTION_clock },
4198 { "startdate", HAS_ARG, QEMU_OPTION_startdate },
4199 { "tb-size", HAS_ARG, QEMU_OPTION_tb_size },
4200 { "icount", HAS_ARG, QEMU_OPTION_icount },
4201 { "incoming", HAS_ARG, QEMU_OPTION_incoming },
4202 { NULL },
4205 /* password input */
4207 int qemu_key_check(BlockDriverState *bs, const char *name)
4209 char password[256];
4210 int i;
4212 if (!bdrv_is_encrypted(bs))
4213 return 0;
4215 term_printf("%s is encrypted.\n", name);
4216 for(i = 0; i < 3; i++) {
4217 monitor_readline("Password: ", 1, password, sizeof(password));
4218 if (bdrv_set_key(bs, password) == 0)
4219 return 0;
4220 term_printf("invalid password\n");
4222 return -EPERM;
4225 static BlockDriverState *get_bdrv(int index)
4227 if (index > nb_drives)
4228 return NULL;
4229 return drives_table[index].bdrv;
4232 static void read_passwords(void)
4234 BlockDriverState *bs;
4235 int i;
4237 for(i = 0; i < 6; i++) {
4238 bs = get_bdrv(i);
4239 if (bs)
4240 qemu_key_check(bs, bdrv_get_device_name(bs));
4244 #ifdef HAS_AUDIO
4245 struct soundhw soundhw[] = {
4246 #ifdef HAS_AUDIO_CHOICE
4247 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4249 "pcspk",
4250 "PC speaker",
4253 { .init_isa = pcspk_audio_init }
4255 #endif
4257 "sb16",
4258 "Creative Sound Blaster 16",
4261 { .init_isa = SB16_init }
4264 #ifdef CONFIG_CS4231A
4266 "cs4231a",
4267 "CS4231A",
4270 { .init_isa = cs4231a_init }
4272 #endif
4274 #ifdef CONFIG_ADLIB
4276 "adlib",
4277 #ifdef HAS_YMF262
4278 "Yamaha YMF262 (OPL3)",
4279 #else
4280 "Yamaha YM3812 (OPL2)",
4281 #endif
4284 { .init_isa = Adlib_init }
4286 #endif
4288 #ifdef CONFIG_GUS
4290 "gus",
4291 "Gravis Ultrasound GF1",
4294 { .init_isa = GUS_init }
4296 #endif
4298 #ifdef CONFIG_AC97
4300 "ac97",
4301 "Intel 82801AA AC97 Audio",
4304 { .init_pci = ac97_init }
4306 #endif
4309 "es1370",
4310 "ENSONIQ AudioPCI ES1370",
4313 { .init_pci = es1370_init }
4315 #endif
4317 { NULL, NULL, 0, 0, { NULL } }
4320 static void select_soundhw (const char *optarg)
4322 struct soundhw *c;
4324 if (*optarg == '?') {
4325 show_valid_cards:
4327 printf ("Valid sound card names (comma separated):\n");
4328 for (c = soundhw; c->name; ++c) {
4329 printf ("%-11s %s\n", c->name, c->descr);
4331 printf ("\n-soundhw all will enable all of the above\n");
4332 exit (*optarg != '?');
4334 else {
4335 size_t l;
4336 const char *p;
4337 char *e;
4338 int bad_card = 0;
4340 if (!strcmp (optarg, "all")) {
4341 for (c = soundhw; c->name; ++c) {
4342 c->enabled = 1;
4344 return;
4347 p = optarg;
4348 while (*p) {
4349 e = strchr (p, ',');
4350 l = !e ? strlen (p) : (size_t) (e - p);
4352 for (c = soundhw; c->name; ++c) {
4353 if (!strncmp (c->name, p, l)) {
4354 c->enabled = 1;
4355 break;
4359 if (!c->name) {
4360 if (l > 80) {
4361 fprintf (stderr,
4362 "Unknown sound card name (too big to show)\n");
4364 else {
4365 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4366 (int) l, p);
4368 bad_card = 1;
4370 p += l + (e != NULL);
4373 if (bad_card)
4374 goto show_valid_cards;
4377 #endif
4379 static void select_vgahw (const char *p)
4381 const char *opts;
4383 if (strstart(p, "std", &opts)) {
4384 cirrus_vga_enabled = 0;
4385 vmsvga_enabled = 0;
4386 } else if (strstart(p, "cirrus", &opts)) {
4387 cirrus_vga_enabled = 1;
4388 vmsvga_enabled = 0;
4389 } else if (strstart(p, "vmware", &opts)) {
4390 cirrus_vga_enabled = 0;
4391 vmsvga_enabled = 1;
4392 } else {
4393 invalid_vga:
4394 fprintf(stderr, "Unknown vga type: %s\n", p);
4395 exit(1);
4397 while (*opts) {
4398 const char *nextopt;
4400 if (strstart(opts, ",retrace=", &nextopt)) {
4401 opts = nextopt;
4402 if (strstart(opts, "dumb", &nextopt))
4403 vga_retrace_method = VGA_RETRACE_DUMB;
4404 else if (strstart(opts, "precise", &nextopt))
4405 vga_retrace_method = VGA_RETRACE_PRECISE;
4406 else goto invalid_vga;
4407 } else goto invalid_vga;
4408 opts = nextopt;
4412 #ifdef _WIN32
4413 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4415 exit(STATUS_CONTROL_C_EXIT);
4416 return TRUE;
4418 #endif
4420 static int qemu_uuid_parse(const char *str, uint8_t *uuid)
4422 int ret;
4424 if(strlen(str) != 36)
4425 return -1;
4427 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4428 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4429 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4431 if(ret != 16)
4432 return -1;
4434 return 0;
4437 #define MAX_NET_CLIENTS 32
4439 #ifndef _WIN32
4441 static void termsig_handler(int signal)
4443 qemu_system_shutdown_request();
4446 static void termsig_setup(void)
4448 struct sigaction act;
4450 memset(&act, 0, sizeof(act));
4451 act.sa_handler = termsig_handler;
4452 sigaction(SIGINT, &act, NULL);
4453 sigaction(SIGHUP, &act, NULL);
4454 sigaction(SIGTERM, &act, NULL);
4457 #endif
4459 int main(int argc, char **argv)
4461 #ifdef CONFIG_GDBSTUB
4462 int use_gdbstub;
4463 const char *gdbstub_port;
4464 #endif
4465 uint32_t boot_devices_bitmap = 0;
4466 int i;
4467 int snapshot, linux_boot, net_boot;
4468 const char *initrd_filename;
4469 const char *kernel_filename, *kernel_cmdline;
4470 const char *boot_devices = "";
4471 DisplayState *ds = &display_state;
4472 int cyls, heads, secs, translation;
4473 const char *net_clients[MAX_NET_CLIENTS];
4474 int nb_net_clients;
4475 const char *bt_opts[MAX_BT_CMDLINE];
4476 int nb_bt_opts;
4477 int hda_index;
4478 int optind;
4479 const char *r, *optarg;
4480 CharDriverState *monitor_hd;
4481 const char *monitor_device;
4482 const char *serial_devices[MAX_SERIAL_PORTS];
4483 int serial_device_index;
4484 const char *parallel_devices[MAX_PARALLEL_PORTS];
4485 int parallel_device_index;
4486 const char *loadvm = NULL;
4487 QEMUMachine *machine;
4488 const char *cpu_model;
4489 const char *usb_devices[MAX_USB_CMDLINE];
4490 int usb_devices_index;
4491 int fds[2];
4492 int tb_size;
4493 const char *pid_file = NULL;
4494 int autostart;
4495 const char *incoming = NULL;
4497 LIST_INIT (&vm_change_state_head);
4498 #ifndef _WIN32
4500 struct sigaction act;
4501 sigfillset(&act.sa_mask);
4502 act.sa_flags = 0;
4503 act.sa_handler = SIG_IGN;
4504 sigaction(SIGPIPE, &act, NULL);
4506 #else
4507 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4508 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4509 QEMU to run on a single CPU */
4511 HANDLE h;
4512 DWORD mask, smask;
4513 int i;
4514 h = GetCurrentProcess();
4515 if (GetProcessAffinityMask(h, &mask, &smask)) {
4516 for(i = 0; i < 32; i++) {
4517 if (mask & (1 << i))
4518 break;
4520 if (i != 32) {
4521 mask = 1 << i;
4522 SetProcessAffinityMask(h, mask);
4526 #endif
4528 register_machines();
4529 machine = first_machine;
4530 cpu_model = NULL;
4531 initrd_filename = NULL;
4532 ram_size = 0;
4533 vga_ram_size = VGA_RAM_SIZE;
4534 #ifdef CONFIG_GDBSTUB
4535 use_gdbstub = 0;
4536 gdbstub_port = DEFAULT_GDBSTUB_PORT;
4537 #endif
4538 snapshot = 0;
4539 nographic = 0;
4540 curses = 0;
4541 kernel_filename = NULL;
4542 kernel_cmdline = "";
4543 cyls = heads = secs = 0;
4544 translation = BIOS_ATA_TRANSLATION_AUTO;
4545 monitor_device = "vc";
4547 serial_devices[0] = "vc:80Cx24C";
4548 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4549 serial_devices[i] = NULL;
4550 serial_device_index = 0;
4552 parallel_devices[0] = "vc:640x480";
4553 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4554 parallel_devices[i] = NULL;
4555 parallel_device_index = 0;
4557 usb_devices_index = 0;
4559 nb_net_clients = 0;
4560 nb_bt_opts = 0;
4561 nb_drives = 0;
4562 nb_drives_opt = 0;
4563 hda_index = -1;
4565 nb_nics = 0;
4567 tb_size = 0;
4568 autostart= 1;
4570 optind = 1;
4571 for(;;) {
4572 if (optind >= argc)
4573 break;
4574 r = argv[optind];
4575 if (r[0] != '-') {
4576 hda_index = drive_add(argv[optind++], HD_ALIAS, 0);
4577 } else {
4578 const QEMUOption *popt;
4580 optind++;
4581 /* Treat --foo the same as -foo. */
4582 if (r[1] == '-')
4583 r++;
4584 popt = qemu_options;
4585 for(;;) {
4586 if (!popt->name) {
4587 fprintf(stderr, "%s: invalid option -- '%s'\n",
4588 argv[0], r);
4589 exit(1);
4591 if (!strcmp(popt->name, r + 1))
4592 break;
4593 popt++;
4595 if (popt->flags & HAS_ARG) {
4596 if (optind >= argc) {
4597 fprintf(stderr, "%s: option '%s' requires an argument\n",
4598 argv[0], r);
4599 exit(1);
4601 optarg = argv[optind++];
4602 } else {
4603 optarg = NULL;
4606 switch(popt->index) {
4607 case QEMU_OPTION_M:
4608 machine = find_machine(optarg);
4609 if (!machine) {
4610 QEMUMachine *m;
4611 printf("Supported machines are:\n");
4612 for(m = first_machine; m != NULL; m = m->next) {
4613 printf("%-10s %s%s\n",
4614 m->name, m->desc,
4615 m == first_machine ? " (default)" : "");
4617 exit(*optarg != '?');
4619 break;
4620 case QEMU_OPTION_cpu:
4621 /* hw initialization will check this */
4622 if (*optarg == '?') {
4623 /* XXX: implement xxx_cpu_list for targets that still miss it */
4624 #if defined(cpu_list)
4625 cpu_list(stdout, &fprintf);
4626 #endif
4627 exit(0);
4628 } else {
4629 cpu_model = optarg;
4631 break;
4632 case QEMU_OPTION_initrd:
4633 initrd_filename = optarg;
4634 break;
4635 case QEMU_OPTION_hda:
4636 if (cyls == 0)
4637 hda_index = drive_add(optarg, HD_ALIAS, 0);
4638 else
4639 hda_index = drive_add(optarg, HD_ALIAS
4640 ",cyls=%d,heads=%d,secs=%d%s",
4641 0, cyls, heads, secs,
4642 translation == BIOS_ATA_TRANSLATION_LBA ?
4643 ",trans=lba" :
4644 translation == BIOS_ATA_TRANSLATION_NONE ?
4645 ",trans=none" : "");
4646 break;
4647 case QEMU_OPTION_hdb:
4648 case QEMU_OPTION_hdc:
4649 case QEMU_OPTION_hdd:
4650 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4651 break;
4652 case QEMU_OPTION_drive:
4653 drive_add(NULL, "%s", optarg);
4654 break;
4655 case QEMU_OPTION_mtdblock:
4656 drive_add(optarg, MTD_ALIAS);
4657 break;
4658 case QEMU_OPTION_sd:
4659 drive_add(optarg, SD_ALIAS);
4660 break;
4661 case QEMU_OPTION_pflash:
4662 drive_add(optarg, PFLASH_ALIAS);
4663 break;
4664 case QEMU_OPTION_snapshot:
4665 snapshot = 1;
4666 break;
4667 case QEMU_OPTION_hdachs:
4669 const char *p;
4670 p = optarg;
4671 cyls = strtol(p, (char **)&p, 0);
4672 if (cyls < 1 || cyls > 16383)
4673 goto chs_fail;
4674 if (*p != ',')
4675 goto chs_fail;
4676 p++;
4677 heads = strtol(p, (char **)&p, 0);
4678 if (heads < 1 || heads > 16)
4679 goto chs_fail;
4680 if (*p != ',')
4681 goto chs_fail;
4682 p++;
4683 secs = strtol(p, (char **)&p, 0);
4684 if (secs < 1 || secs > 63)
4685 goto chs_fail;
4686 if (*p == ',') {
4687 p++;
4688 if (!strcmp(p, "none"))
4689 translation = BIOS_ATA_TRANSLATION_NONE;
4690 else if (!strcmp(p, "lba"))
4691 translation = BIOS_ATA_TRANSLATION_LBA;
4692 else if (!strcmp(p, "auto"))
4693 translation = BIOS_ATA_TRANSLATION_AUTO;
4694 else
4695 goto chs_fail;
4696 } else if (*p != '\0') {
4697 chs_fail:
4698 fprintf(stderr, "qemu: invalid physical CHS format\n");
4699 exit(1);
4701 if (hda_index != -1)
4702 snprintf(drives_opt[hda_index].opt,
4703 sizeof(drives_opt[hda_index].opt),
4704 HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s",
4705 0, cyls, heads, secs,
4706 translation == BIOS_ATA_TRANSLATION_LBA ?
4707 ",trans=lba" :
4708 translation == BIOS_ATA_TRANSLATION_NONE ?
4709 ",trans=none" : "");
4711 break;
4712 case QEMU_OPTION_nographic:
4713 nographic = 1;
4714 break;
4715 #ifdef CONFIG_CURSES
4716 case QEMU_OPTION_curses:
4717 curses = 1;
4718 break;
4719 #endif
4720 case QEMU_OPTION_portrait:
4721 graphic_rotate = 1;
4722 break;
4723 case QEMU_OPTION_kernel:
4724 kernel_filename = optarg;
4725 break;
4726 case QEMU_OPTION_append:
4727 kernel_cmdline = optarg;
4728 break;
4729 case QEMU_OPTION_cdrom:
4730 drive_add(optarg, CDROM_ALIAS);
4731 break;
4732 case QEMU_OPTION_boot:
4733 boot_devices = optarg;
4734 /* We just do some generic consistency checks */
4736 /* Could easily be extended to 64 devices if needed */
4737 const char *p;
4739 boot_devices_bitmap = 0;
4740 for (p = boot_devices; *p != '\0'; p++) {
4741 /* Allowed boot devices are:
4742 * a b : floppy disk drives
4743 * c ... f : IDE disk drives
4744 * g ... m : machine implementation dependant drives
4745 * n ... p : network devices
4746 * It's up to each machine implementation to check
4747 * if the given boot devices match the actual hardware
4748 * implementation and firmware features.
4750 if (*p < 'a' || *p > 'q') {
4751 fprintf(stderr, "Invalid boot device '%c'\n", *p);
4752 exit(1);
4754 if (boot_devices_bitmap & (1 << (*p - 'a'))) {
4755 fprintf(stderr,
4756 "Boot device '%c' was given twice\n",*p);
4757 exit(1);
4759 boot_devices_bitmap |= 1 << (*p - 'a');
4762 break;
4763 case QEMU_OPTION_fda:
4764 case QEMU_OPTION_fdb:
4765 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
4766 break;
4767 #ifdef TARGET_I386
4768 case QEMU_OPTION_no_fd_bootchk:
4769 fd_bootchk = 0;
4770 break;
4771 #endif
4772 case QEMU_OPTION_net:
4773 if (nb_net_clients >= MAX_NET_CLIENTS) {
4774 fprintf(stderr, "qemu: too many network clients\n");
4775 exit(1);
4777 net_clients[nb_net_clients] = optarg;
4778 nb_net_clients++;
4779 break;
4780 #ifdef CONFIG_SLIRP
4781 case QEMU_OPTION_tftp:
4782 tftp_prefix = optarg;
4783 break;
4784 case QEMU_OPTION_bootp:
4785 bootp_filename = optarg;
4786 break;
4787 #ifndef _WIN32
4788 case QEMU_OPTION_smb:
4789 net_slirp_smb(optarg);
4790 break;
4791 #endif
4792 case QEMU_OPTION_redir:
4793 net_slirp_redir(optarg);
4794 break;
4795 #endif
4796 case QEMU_OPTION_bt:
4797 if (nb_bt_opts >= MAX_BT_CMDLINE) {
4798 fprintf(stderr, "qemu: too many bluetooth options\n");
4799 exit(1);
4801 bt_opts[nb_bt_opts++] = optarg;
4802 break;
4803 #ifdef HAS_AUDIO
4804 case QEMU_OPTION_audio_help:
4805 AUD_help ();
4806 exit (0);
4807 break;
4808 case QEMU_OPTION_soundhw:
4809 select_soundhw (optarg);
4810 break;
4811 #endif
4812 case QEMU_OPTION_h:
4813 help(0);
4814 break;
4815 case QEMU_OPTION_m: {
4816 uint64_t value;
4817 char *ptr;
4819 value = strtoul(optarg, &ptr, 10);
4820 switch (*ptr) {
4821 case 0: case 'M': case 'm':
4822 value <<= 20;
4823 break;
4824 case 'G': case 'g':
4825 value <<= 30;
4826 break;
4827 default:
4828 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
4829 exit(1);
4832 /* On 32-bit hosts, QEMU is limited by virtual address space */
4833 if (value > (2047 << 20)
4834 #ifndef USE_KQEMU
4835 && HOST_LONG_BITS == 32
4836 #endif
4838 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4839 exit(1);
4841 if (value != (uint64_t)(ram_addr_t)value) {
4842 fprintf(stderr, "qemu: ram size too large\n");
4843 exit(1);
4845 ram_size = value;
4846 break;
4848 case QEMU_OPTION_d:
4850 int mask;
4851 const CPULogItem *item;
4853 mask = cpu_str_to_log_mask(optarg);
4854 if (!mask) {
4855 printf("Log items (comma separated):\n");
4856 for(item = cpu_log_items; item->mask != 0; item++) {
4857 printf("%-10s %s\n", item->name, item->help);
4859 exit(1);
4861 cpu_set_log(mask);
4863 break;
4864 #ifdef CONFIG_GDBSTUB
4865 case QEMU_OPTION_s:
4866 use_gdbstub = 1;
4867 break;
4868 case QEMU_OPTION_p:
4869 gdbstub_port = optarg;
4870 break;
4871 #endif
4872 case QEMU_OPTION_L:
4873 bios_dir = optarg;
4874 break;
4875 case QEMU_OPTION_bios:
4876 bios_name = optarg;
4877 break;
4878 case QEMU_OPTION_S:
4879 autostart = 0;
4880 break;
4881 case QEMU_OPTION_k:
4882 keyboard_layout = optarg;
4883 break;
4884 case QEMU_OPTION_localtime:
4885 rtc_utc = 0;
4886 break;
4887 case QEMU_OPTION_vga:
4888 select_vgahw (optarg);
4889 break;
4890 case QEMU_OPTION_g:
4892 const char *p;
4893 int w, h, depth;
4894 p = optarg;
4895 w = strtol(p, (char **)&p, 10);
4896 if (w <= 0) {
4897 graphic_error:
4898 fprintf(stderr, "qemu: invalid resolution or depth\n");
4899 exit(1);
4901 if (*p != 'x')
4902 goto graphic_error;
4903 p++;
4904 h = strtol(p, (char **)&p, 10);
4905 if (h <= 0)
4906 goto graphic_error;
4907 if (*p == 'x') {
4908 p++;
4909 depth = strtol(p, (char **)&p, 10);
4910 if (depth != 8 && depth != 15 && depth != 16 &&
4911 depth != 24 && depth != 32)
4912 goto graphic_error;
4913 } else if (*p == '\0') {
4914 depth = graphic_depth;
4915 } else {
4916 goto graphic_error;
4919 graphic_width = w;
4920 graphic_height = h;
4921 graphic_depth = depth;
4923 break;
4924 case QEMU_OPTION_echr:
4926 char *r;
4927 term_escape_char = strtol(optarg, &r, 0);
4928 if (r == optarg)
4929 printf("Bad argument to echr\n");
4930 break;
4932 case QEMU_OPTION_monitor:
4933 monitor_device = optarg;
4934 break;
4935 case QEMU_OPTION_serial:
4936 if (serial_device_index >= MAX_SERIAL_PORTS) {
4937 fprintf(stderr, "qemu: too many serial ports\n");
4938 exit(1);
4940 serial_devices[serial_device_index] = optarg;
4941 serial_device_index++;
4942 break;
4943 case QEMU_OPTION_parallel:
4944 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
4945 fprintf(stderr, "qemu: too many parallel ports\n");
4946 exit(1);
4948 parallel_devices[parallel_device_index] = optarg;
4949 parallel_device_index++;
4950 break;
4951 case QEMU_OPTION_loadvm:
4952 loadvm = optarg;
4953 break;
4954 case QEMU_OPTION_full_screen:
4955 full_screen = 1;
4956 break;
4957 #ifdef CONFIG_SDL
4958 case QEMU_OPTION_no_frame:
4959 no_frame = 1;
4960 break;
4961 case QEMU_OPTION_alt_grab:
4962 alt_grab = 1;
4963 break;
4964 case QEMU_OPTION_no_quit:
4965 no_quit = 1;
4966 break;
4967 #endif
4968 case QEMU_OPTION_pidfile:
4969 pid_file = optarg;
4970 break;
4971 #ifdef TARGET_I386
4972 case QEMU_OPTION_win2k_hack:
4973 win2k_install_hack = 1;
4974 break;
4975 #endif
4976 #ifdef USE_KQEMU
4977 case QEMU_OPTION_no_kqemu:
4978 kqemu_allowed = 0;
4979 break;
4980 case QEMU_OPTION_kernel_kqemu:
4981 kqemu_allowed = 2;
4982 break;
4983 #endif
4984 #ifdef CONFIG_KVM
4985 case QEMU_OPTION_enable_kvm:
4986 kvm_allowed = 1;
4987 #ifdef USE_KQEMU
4988 kqemu_allowed = 0;
4989 #endif
4990 break;
4991 #endif
4992 case QEMU_OPTION_usb:
4993 usb_enabled = 1;
4994 break;
4995 case QEMU_OPTION_usbdevice:
4996 usb_enabled = 1;
4997 if (usb_devices_index >= MAX_USB_CMDLINE) {
4998 fprintf(stderr, "Too many USB devices\n");
4999 exit(1);
5001 usb_devices[usb_devices_index] = optarg;
5002 usb_devices_index++;
5003 break;
5004 case QEMU_OPTION_smp:
5005 smp_cpus = atoi(optarg);
5006 if (smp_cpus < 1) {
5007 fprintf(stderr, "Invalid number of CPUs\n");
5008 exit(1);
5010 break;
5011 case QEMU_OPTION_vnc:
5012 vnc_display = optarg;
5013 break;
5014 case QEMU_OPTION_no_acpi:
5015 acpi_enabled = 0;
5016 break;
5017 case QEMU_OPTION_no_reboot:
5018 no_reboot = 1;
5019 break;
5020 case QEMU_OPTION_no_shutdown:
5021 no_shutdown = 1;
5022 break;
5023 case QEMU_OPTION_show_cursor:
5024 cursor_hide = 0;
5025 break;
5026 case QEMU_OPTION_uuid:
5027 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5028 fprintf(stderr, "Fail to parse UUID string."
5029 " Wrong format.\n");
5030 exit(1);
5032 break;
5033 case QEMU_OPTION_daemonize:
5034 daemonize = 1;
5035 break;
5036 case QEMU_OPTION_option_rom:
5037 if (nb_option_roms >= MAX_OPTION_ROMS) {
5038 fprintf(stderr, "Too many option ROMs\n");
5039 exit(1);
5041 option_rom[nb_option_roms] = optarg;
5042 nb_option_roms++;
5043 break;
5044 case QEMU_OPTION_semihosting:
5045 semihosting_enabled = 1;
5046 break;
5047 case QEMU_OPTION_name:
5048 qemu_name = optarg;
5049 break;
5050 #ifdef TARGET_SPARC
5051 case QEMU_OPTION_prom_env:
5052 if (nb_prom_envs >= MAX_PROM_ENVS) {
5053 fprintf(stderr, "Too many prom variables\n");
5054 exit(1);
5056 prom_envs[nb_prom_envs] = optarg;
5057 nb_prom_envs++;
5058 break;
5059 #endif
5060 #ifdef TARGET_ARM
5061 case QEMU_OPTION_old_param:
5062 old_param = 1;
5063 break;
5064 #endif
5065 case QEMU_OPTION_clock:
5066 configure_alarms(optarg);
5067 break;
5068 case QEMU_OPTION_startdate:
5070 struct tm tm;
5071 time_t rtc_start_date;
5072 if (!strcmp(optarg, "now")) {
5073 rtc_date_offset = -1;
5074 } else {
5075 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5076 &tm.tm_year,
5077 &tm.tm_mon,
5078 &tm.tm_mday,
5079 &tm.tm_hour,
5080 &tm.tm_min,
5081 &tm.tm_sec) == 6) {
5082 /* OK */
5083 } else if (sscanf(optarg, "%d-%d-%d",
5084 &tm.tm_year,
5085 &tm.tm_mon,
5086 &tm.tm_mday) == 3) {
5087 tm.tm_hour = 0;
5088 tm.tm_min = 0;
5089 tm.tm_sec = 0;
5090 } else {
5091 goto date_fail;
5093 tm.tm_year -= 1900;
5094 tm.tm_mon--;
5095 rtc_start_date = mktimegm(&tm);
5096 if (rtc_start_date == -1) {
5097 date_fail:
5098 fprintf(stderr, "Invalid date format. Valid format are:\n"
5099 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5100 exit(1);
5102 rtc_date_offset = time(NULL) - rtc_start_date;
5105 break;
5106 case QEMU_OPTION_tb_size:
5107 tb_size = strtol(optarg, NULL, 0);
5108 if (tb_size < 0)
5109 tb_size = 0;
5110 break;
5111 case QEMU_OPTION_icount:
5112 use_icount = 1;
5113 if (strcmp(optarg, "auto") == 0) {
5114 icount_time_shift = -1;
5115 } else {
5116 icount_time_shift = strtol(optarg, NULL, 0);
5118 break;
5119 case QEMU_OPTION_incoming:
5120 incoming = optarg;
5121 break;
5126 #if defined(CONFIG_KVM) && defined(USE_KQEMU)
5127 if (kvm_allowed && kqemu_allowed) {
5128 fprintf(stderr,
5129 "You can not enable both KVM and kqemu at the same time\n");
5130 exit(1);
5132 #endif
5134 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5135 if (smp_cpus > machine->max_cpus) {
5136 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5137 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5138 machine->max_cpus);
5139 exit(1);
5142 if (nographic) {
5143 if (serial_device_index == 0)
5144 serial_devices[0] = "stdio";
5145 if (parallel_device_index == 0)
5146 parallel_devices[0] = "null";
5147 if (strncmp(monitor_device, "vc", 2) == 0)
5148 monitor_device = "stdio";
5151 #ifndef _WIN32
5152 if (daemonize) {
5153 pid_t pid;
5155 if (pipe(fds) == -1)
5156 exit(1);
5158 pid = fork();
5159 if (pid > 0) {
5160 uint8_t status;
5161 ssize_t len;
5163 close(fds[1]);
5165 again:
5166 len = read(fds[0], &status, 1);
5167 if (len == -1 && (errno == EINTR))
5168 goto again;
5170 if (len != 1)
5171 exit(1);
5172 else if (status == 1) {
5173 fprintf(stderr, "Could not acquire pidfile\n");
5174 exit(1);
5175 } else
5176 exit(0);
5177 } else if (pid < 0)
5178 exit(1);
5180 setsid();
5182 pid = fork();
5183 if (pid > 0)
5184 exit(0);
5185 else if (pid < 0)
5186 exit(1);
5188 umask(027);
5190 signal(SIGTSTP, SIG_IGN);
5191 signal(SIGTTOU, SIG_IGN);
5192 signal(SIGTTIN, SIG_IGN);
5194 #endif
5196 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5197 if (daemonize) {
5198 uint8_t status = 1;
5199 write(fds[1], &status, 1);
5200 } else
5201 fprintf(stderr, "Could not acquire pid file\n");
5202 exit(1);
5205 #ifdef USE_KQEMU
5206 if (smp_cpus > 1)
5207 kqemu_allowed = 0;
5208 #endif
5209 linux_boot = (kernel_filename != NULL);
5210 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5212 if (!linux_boot && net_boot == 0 &&
5213 !machine->nodisk_ok && nb_drives_opt == 0)
5214 help(1);
5216 if (!linux_boot && *kernel_cmdline != '\0') {
5217 fprintf(stderr, "-append only allowed with -kernel option\n");
5218 exit(1);
5221 if (!linux_boot && initrd_filename != NULL) {
5222 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5223 exit(1);
5226 /* boot to floppy or the default cd if no hard disk defined yet */
5227 if (!boot_devices[0]) {
5228 boot_devices = "cad";
5230 setvbuf(stdout, NULL, _IOLBF, 0);
5232 init_timers();
5233 if (init_timer_alarm() < 0) {
5234 fprintf(stderr, "could not initialize alarm timer\n");
5235 exit(1);
5237 if (use_icount && icount_time_shift < 0) {
5238 use_icount = 2;
5239 /* 125MIPS seems a reasonable initial guess at the guest speed.
5240 It will be corrected fairly quickly anyway. */
5241 icount_time_shift = 3;
5242 init_icount_adjust();
5245 #ifdef _WIN32
5246 socket_init();
5247 #endif
5249 /* init network clients */
5250 if (nb_net_clients == 0) {
5251 /* if no clients, we use a default config */
5252 net_clients[nb_net_clients++] = "nic";
5253 #ifdef CONFIG_SLIRP
5254 net_clients[nb_net_clients++] = "user";
5255 #endif
5258 for(i = 0;i < nb_net_clients; i++) {
5259 if (net_client_parse(net_clients[i]) < 0)
5260 exit(1);
5262 net_client_check();
5264 #ifdef TARGET_I386
5265 /* XXX: this should be moved in the PC machine instantiation code */
5266 if (net_boot != 0) {
5267 int netroms = 0;
5268 for (i = 0; i < nb_nics && i < 4; i++) {
5269 const char *model = nd_table[i].model;
5270 char buf[1024];
5271 if (net_boot & (1 << i)) {
5272 if (model == NULL)
5273 model = "ne2k_pci";
5274 snprintf(buf, sizeof(buf), "%s/pxe-%s.bin", bios_dir, model);
5275 if (get_image_size(buf) > 0) {
5276 if (nb_option_roms >= MAX_OPTION_ROMS) {
5277 fprintf(stderr, "Too many option ROMs\n");
5278 exit(1);
5280 option_rom[nb_option_roms] = strdup(buf);
5281 nb_option_roms++;
5282 netroms++;
5286 if (netroms == 0) {
5287 fprintf(stderr, "No valid PXE rom found for network device\n");
5288 exit(1);
5291 #endif
5293 /* init the bluetooth world */
5294 for (i = 0; i < nb_bt_opts; i++)
5295 if (bt_parse(bt_opts[i]))
5296 exit(1);
5298 /* init the memory */
5299 phys_ram_size = machine->ram_require & ~RAMSIZE_FIXED;
5301 if (machine->ram_require & RAMSIZE_FIXED) {
5302 if (ram_size > 0) {
5303 if (ram_size < phys_ram_size) {
5304 fprintf(stderr, "Machine `%s' requires %llu bytes of memory\n",
5305 machine->name, (unsigned long long) phys_ram_size);
5306 exit(-1);
5309 phys_ram_size = ram_size;
5310 } else
5311 ram_size = phys_ram_size;
5312 } else {
5313 if (ram_size == 0)
5314 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5316 phys_ram_size += ram_size;
5319 phys_ram_base = qemu_vmalloc(phys_ram_size);
5320 if (!phys_ram_base) {
5321 fprintf(stderr, "Could not allocate physical memory\n");
5322 exit(1);
5325 /* init the dynamic translator */
5326 cpu_exec_init_all(tb_size * 1024 * 1024);
5328 bdrv_init();
5330 /* we always create the cdrom drive, even if no disk is there */
5332 if (nb_drives_opt < MAX_DRIVES)
5333 drive_add(NULL, CDROM_ALIAS);
5335 /* we always create at least one floppy */
5337 if (nb_drives_opt < MAX_DRIVES)
5338 drive_add(NULL, FD_ALIAS, 0);
5340 /* we always create one sd slot, even if no card is in it */
5342 if (nb_drives_opt < MAX_DRIVES)
5343 drive_add(NULL, SD_ALIAS);
5345 /* open the virtual block devices */
5347 for(i = 0; i < nb_drives_opt; i++)
5348 if (drive_init(&drives_opt[i], snapshot, machine) == -1)
5349 exit(1);
5351 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
5352 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5354 /* terminal init */
5355 memset(&display_state, 0, sizeof(display_state));
5356 if (nographic) {
5357 if (curses) {
5358 fprintf(stderr, "fatal: -nographic can't be used with -curses\n");
5359 exit(1);
5361 /* nearly nothing to do */
5362 dumb_display_init(ds);
5363 } else if (vnc_display != NULL) {
5364 vnc_display_init(ds);
5365 if (vnc_display_open(ds, vnc_display) < 0)
5366 exit(1);
5367 } else
5368 #if defined(CONFIG_CURSES)
5369 if (curses) {
5370 curses_display_init(ds, full_screen);
5371 } else
5372 #endif
5374 #if defined(CONFIG_SDL)
5375 sdl_display_init(ds, full_screen, no_frame);
5376 #elif defined(CONFIG_COCOA)
5377 cocoa_display_init(ds, full_screen);
5378 #else
5379 dumb_display_init(ds);
5380 #endif
5383 #ifndef _WIN32
5384 /* must be after terminal init, SDL library changes signal handlers */
5385 termsig_setup();
5386 #endif
5388 /* Maintain compatibility with multiple stdio monitors */
5389 if (!strcmp(monitor_device,"stdio")) {
5390 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5391 const char *devname = serial_devices[i];
5392 if (devname && !strcmp(devname,"mon:stdio")) {
5393 monitor_device = NULL;
5394 break;
5395 } else if (devname && !strcmp(devname,"stdio")) {
5396 monitor_device = NULL;
5397 serial_devices[i] = "mon:stdio";
5398 break;
5402 if (monitor_device) {
5403 monitor_hd = qemu_chr_open("monitor", monitor_device);
5404 if (!monitor_hd) {
5405 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
5406 exit(1);
5408 monitor_init(monitor_hd, !nographic);
5411 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5412 const char *devname = serial_devices[i];
5413 if (devname && strcmp(devname, "none")) {
5414 char label[32];
5415 snprintf(label, sizeof(label), "serial%d", i);
5416 serial_hds[i] = qemu_chr_open(label, devname);
5417 if (!serial_hds[i]) {
5418 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5419 devname);
5420 exit(1);
5422 if (strstart(devname, "vc", 0))
5423 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
5427 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5428 const char *devname = parallel_devices[i];
5429 if (devname && strcmp(devname, "none")) {
5430 char label[32];
5431 snprintf(label, sizeof(label), "parallel%d", i);
5432 parallel_hds[i] = qemu_chr_open(label, devname);
5433 if (!parallel_hds[i]) {
5434 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5435 devname);
5436 exit(1);
5438 if (strstart(devname, "vc", 0))
5439 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
5443 if (kvm_enabled()) {
5444 int ret;
5446 ret = kvm_init(smp_cpus);
5447 if (ret < 0) {
5448 fprintf(stderr, "failed to initialize KVM\n");
5449 exit(1);
5453 machine->init(ram_size, vga_ram_size, boot_devices, ds,
5454 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5456 /* init USB devices */
5457 if (usb_enabled) {
5458 for(i = 0; i < usb_devices_index; i++) {
5459 if (usb_device_add(usb_devices[i]) < 0) {
5460 fprintf(stderr, "Warning: could not add USB device %s\n",
5461 usb_devices[i]);
5466 if (display_state.dpy_refresh) {
5467 display_state.gui_timer = qemu_new_timer(rt_clock, gui_update, &display_state);
5468 qemu_mod_timer(display_state.gui_timer, qemu_get_clock(rt_clock));
5471 #ifdef CONFIG_GDBSTUB
5472 if (use_gdbstub) {
5473 /* XXX: use standard host:port notation and modify options
5474 accordingly. */
5475 if (gdbserver_start(gdbstub_port) < 0) {
5476 fprintf(stderr, "qemu: could not open gdbstub device on port '%s'\n",
5477 gdbstub_port);
5478 exit(1);
5481 #endif
5483 if (loadvm)
5484 do_loadvm(loadvm);
5486 if (incoming) {
5487 autostart = 0; /* fixme how to deal with -daemonize */
5488 qemu_start_incoming_migration(incoming);
5492 /* XXX: simplify init */
5493 read_passwords();
5494 if (autostart) {
5495 vm_start();
5499 if (daemonize) {
5500 uint8_t status = 0;
5501 ssize_t len;
5502 int fd;
5504 again1:
5505 len = write(fds[1], &status, 1);
5506 if (len == -1 && (errno == EINTR))
5507 goto again1;
5509 if (len != 1)
5510 exit(1);
5512 chdir("/");
5513 TFR(fd = open("/dev/null", O_RDWR));
5514 if (fd == -1)
5515 exit(1);
5517 dup2(fd, 0);
5518 dup2(fd, 1);
5519 dup2(fd, 2);
5521 close(fd);
5524 main_loop();
5525 quit_timers();
5526 net_cleanup();
5528 return 0;