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
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34 /* Needed early to override system queue definitions on BSD */
35 #include "sys-queue.h"
40 #include <sys/times.h>
44 #include <sys/ioctl.h>
45 #include <sys/resource.h>
46 #include <sys/socket.h>
47 #include <netinet/in.h>
49 #if defined(__NetBSD__)
50 #include <net/if_tap.h>
53 #include <linux/if_tun.h>
55 #include <arpa/inet.h>
58 #include <sys/select.h>
61 #if defined(__FreeBSD__) || defined(__DragonFly__)
66 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
67 #include <freebsd/stdlib.h>
72 #include <linux/rtc.h>
73 #include <sys/prctl.h>
75 /* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77 /* #include <linux/hpet.h> */
80 #include <linux/ppdev.h>
81 #include <linux/parport.h>
85 #include <sys/ethernet.h>
86 #include <sys/sockio.h>
87 #include <netinet/arp.h>
88 #include <netinet/in.h>
89 #include <netinet/in_systm.h>
90 #include <netinet/ip.h>
91 #include <netinet/ip_icmp.h> // must come after ip.h
92 #include <netinet/udp.h>
93 #include <netinet/tcp.h>
101 #if defined(__OpenBSD__)
105 #if defined(CONFIG_VDE)
106 #include <libvdeplug.h>
111 #include <mmsystem.h>
115 #if defined(__APPLE__) || defined(main)
117 int qemu_main(int argc, char **argv, char **envp);
118 int main(int argc, char **argv)
120 return qemu_main(argc, argv, NULL);
123 #define main qemu_main
125 #endif /* CONFIG_SDL */
129 #define main qemu_main
130 #endif /* CONFIG_COCOA */
133 #include "hw/boards.h"
135 #include "hw/pcmcia.h"
137 #include "hw/audiodev.h"
141 #include "hw/watchdog.h"
142 #include "hw/smbios.h"
151 #include "qemu-timer.h"
152 #include "qemu-char.h"
153 #include "cache-utils.h"
156 #include "audio/audio.h"
157 #include "migration.h"
160 #include "qemu-option.h"
161 #include "qemu-config.h"
165 #include "exec-all.h"
167 #include "qemu_socket.h"
169 #include "slirp/libslirp.h"
172 //#define DEBUG_SLIRP
174 #define DEFAULT_RAM_SIZE 128
176 /* Maximum number of monitor devices */
177 #define MAX_MONITOR_DEVICES 10
179 static const char *data_dir;
180 const char *bios_name = NULL;
181 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
182 to store the VM snapshots */
183 struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives);
184 struct driveoptlist driveopts = TAILQ_HEAD_INITIALIZER(driveopts);
185 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
186 static DisplayState *display_state;
187 DisplayType display_type = DT_DEFAULT;
188 const char* keyboard_layout = NULL;
189 int64_t ticks_per_sec;
192 NICInfo nd_table[MAX_NICS];
195 static int rtc_utc = 1;
196 static int rtc_date_offset = -1; /* -1 means no change */
197 int vga_interface_type = VGA_CIRRUS;
199 int graphic_width = 1024;
200 int graphic_height = 768;
201 int graphic_depth = 8;
203 int graphic_width = 800;
204 int graphic_height = 600;
205 int graphic_depth = 15;
207 static int full_screen = 0;
209 static int no_frame = 0;
212 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
213 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
214 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
216 int win2k_install_hack = 0;
225 const char *vnc_display;
226 int acpi_enabled = 1;
232 int graphic_rotate = 0;
233 uint8_t irq0override = 1;
237 const char *watchdog;
238 const char *option_rom[MAX_OPTION_ROMS];
240 int semihosting_enabled = 0;
244 const char *qemu_name;
246 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
247 unsigned int nb_prom_envs = 0;
248 const char *prom_envs[MAX_PROM_ENVS];
253 uint64_t node_mem[MAX_NODES];
254 uint64_t node_cpumask[MAX_NODES];
256 static CPUState *cur_cpu;
257 static CPUState *next_cpu;
258 static int timer_alarm_pending = 1;
259 /* Conversion factor from emulated instructions to virtual clock ticks. */
260 static int icount_time_shift;
261 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
262 #define MAX_ICOUNT_SHIFT 10
263 /* Compensate for varying guest execution speed. */
264 static int64_t qemu_icount_bias;
265 static QEMUTimer *icount_rt_timer;
266 static QEMUTimer *icount_vm_timer;
267 static QEMUTimer *nographic_timer;
269 uint8_t qemu_uuid[16];
271 static QEMUBootSetHandler *boot_set_handler;
272 static void *boot_set_opaque;
274 /***********************************************************/
275 /* x86 ISA bus support */
277 target_phys_addr_t isa_mem_base = 0;
280 /***********************************************************/
281 void hw_error(const char *fmt, ...)
287 fprintf(stderr, "qemu: hardware error: ");
288 vfprintf(stderr, fmt, ap);
289 fprintf(stderr, "\n");
290 for(env = first_cpu; env != NULL; env = env->next_cpu) {
291 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
293 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
295 cpu_dump_state(env, stderr, fprintf, 0);
302 static void set_proc_name(const char *s)
304 #if defined(__linux__) && defined(PR_SET_NAME)
308 name[sizeof(name) - 1] = 0;
309 strncpy(name, s, sizeof(name));
310 /* Could rewrite argv[0] too, but that's a bit more complicated.
311 This simple way is enough for `top'. */
312 prctl(PR_SET_NAME, name);
319 static QEMUBalloonEvent *qemu_balloon_event;
320 void *qemu_balloon_event_opaque;
322 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
324 qemu_balloon_event = func;
325 qemu_balloon_event_opaque = opaque;
328 void qemu_balloon(ram_addr_t target)
330 if (qemu_balloon_event)
331 qemu_balloon_event(qemu_balloon_event_opaque, target);
334 ram_addr_t qemu_balloon_status(void)
336 if (qemu_balloon_event)
337 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
341 /***********************************************************/
344 static QEMUPutKBDEvent *qemu_put_kbd_event;
345 static void *qemu_put_kbd_event_opaque;
346 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
347 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
349 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
351 qemu_put_kbd_event_opaque = opaque;
352 qemu_put_kbd_event = func;
355 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
356 void *opaque, int absolute,
359 QEMUPutMouseEntry *s, *cursor;
361 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
363 s->qemu_put_mouse_event = func;
364 s->qemu_put_mouse_event_opaque = opaque;
365 s->qemu_put_mouse_event_absolute = absolute;
366 s->qemu_put_mouse_event_name = qemu_strdup(name);
369 if (!qemu_put_mouse_event_head) {
370 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
374 cursor = qemu_put_mouse_event_head;
375 while (cursor->next != NULL)
376 cursor = cursor->next;
379 qemu_put_mouse_event_current = s;
384 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
386 QEMUPutMouseEntry *prev = NULL, *cursor;
388 if (!qemu_put_mouse_event_head || entry == NULL)
391 cursor = qemu_put_mouse_event_head;
392 while (cursor != NULL && cursor != entry) {
394 cursor = cursor->next;
397 if (cursor == NULL) // does not exist or list empty
399 else if (prev == NULL) { // entry is head
400 qemu_put_mouse_event_head = cursor->next;
401 if (qemu_put_mouse_event_current == entry)
402 qemu_put_mouse_event_current = cursor->next;
403 qemu_free(entry->qemu_put_mouse_event_name);
408 prev->next = entry->next;
410 if (qemu_put_mouse_event_current == entry)
411 qemu_put_mouse_event_current = prev;
413 qemu_free(entry->qemu_put_mouse_event_name);
417 void kbd_put_keycode(int keycode)
419 if (qemu_put_kbd_event) {
420 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
424 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
426 QEMUPutMouseEvent *mouse_event;
427 void *mouse_event_opaque;
430 if (!qemu_put_mouse_event_current) {
435 qemu_put_mouse_event_current->qemu_put_mouse_event;
437 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
440 if (graphic_rotate) {
441 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
444 width = graphic_width - 1;
445 mouse_event(mouse_event_opaque,
446 width - dy, dx, dz, buttons_state);
448 mouse_event(mouse_event_opaque,
449 dx, dy, dz, buttons_state);
453 int kbd_mouse_is_absolute(void)
455 if (!qemu_put_mouse_event_current)
458 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
461 void do_info_mice(Monitor *mon)
463 QEMUPutMouseEntry *cursor;
466 if (!qemu_put_mouse_event_head) {
467 monitor_printf(mon, "No mouse devices connected\n");
471 monitor_printf(mon, "Mouse devices available:\n");
472 cursor = qemu_put_mouse_event_head;
473 while (cursor != NULL) {
474 monitor_printf(mon, "%c Mouse #%d: %s\n",
475 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
476 index, cursor->qemu_put_mouse_event_name);
478 cursor = cursor->next;
482 void do_mouse_set(Monitor *mon, const QDict *qdict)
484 QEMUPutMouseEntry *cursor;
486 int index = qdict_get_int(qdict, "index");
488 if (!qemu_put_mouse_event_head) {
489 monitor_printf(mon, "No mouse devices connected\n");
493 cursor = qemu_put_mouse_event_head;
494 while (cursor != NULL && index != i) {
496 cursor = cursor->next;
500 qemu_put_mouse_event_current = cursor;
502 monitor_printf(mon, "Mouse at given index not found\n");
505 /* compute with 96 bit intermediate result: (a*b)/c */
506 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
511 #ifdef HOST_WORDS_BIGENDIAN
521 rl = (uint64_t)u.l.low * (uint64_t)b;
522 rh = (uint64_t)u.l.high * (uint64_t)b;
525 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
529 /***********************************************************/
530 /* real time host monotonic timer */
532 #define QEMU_TIMER_BASE 1000000000LL
536 static int64_t clock_freq;
538 static void init_get_clock(void)
542 ret = QueryPerformanceFrequency(&freq);
544 fprintf(stderr, "Could not calibrate ticks\n");
547 clock_freq = freq.QuadPart;
550 static int64_t get_clock(void)
553 QueryPerformanceCounter(&ti);
554 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
559 static int use_rt_clock;
561 static void init_get_clock(void)
564 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
565 || defined(__DragonFly__)
568 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
575 static int64_t get_clock(void)
577 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
578 || defined(__DragonFly__)
581 clock_gettime(CLOCK_MONOTONIC, &ts);
582 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
586 /* XXX: using gettimeofday leads to problems if the date
587 changes, so it should be avoided. */
589 gettimeofday(&tv, NULL);
590 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
595 /* Return the virtual CPU time, based on the instruction counter. */
596 static int64_t cpu_get_icount(void)
599 CPUState *env = cpu_single_env;;
600 icount = qemu_icount;
603 fprintf(stderr, "Bad clock read\n");
604 icount -= (env->icount_decr.u16.low + env->icount_extra);
606 return qemu_icount_bias + (icount << icount_time_shift);
609 /***********************************************************/
610 /* guest cycle counter */
612 static int64_t cpu_ticks_prev;
613 static int64_t cpu_ticks_offset;
614 static int64_t cpu_clock_offset;
615 static int cpu_ticks_enabled;
617 /* return the host CPU cycle counter and handle stop/restart */
618 int64_t cpu_get_ticks(void)
621 return cpu_get_icount();
623 if (!cpu_ticks_enabled) {
624 return cpu_ticks_offset;
627 ticks = cpu_get_real_ticks();
628 if (cpu_ticks_prev > ticks) {
629 /* Note: non increasing ticks may happen if the host uses
631 cpu_ticks_offset += cpu_ticks_prev - ticks;
633 cpu_ticks_prev = ticks;
634 return ticks + cpu_ticks_offset;
638 /* return the host CPU monotonic timer and handle stop/restart */
639 static int64_t cpu_get_clock(void)
642 if (!cpu_ticks_enabled) {
643 return cpu_clock_offset;
646 return ti + cpu_clock_offset;
650 /* enable cpu_get_ticks() */
651 void cpu_enable_ticks(void)
653 if (!cpu_ticks_enabled) {
654 cpu_ticks_offset -= cpu_get_real_ticks();
655 cpu_clock_offset -= get_clock();
656 cpu_ticks_enabled = 1;
660 /* disable cpu_get_ticks() : the clock is stopped. You must not call
661 cpu_get_ticks() after that. */
662 void cpu_disable_ticks(void)
664 if (cpu_ticks_enabled) {
665 cpu_ticks_offset = cpu_get_ticks();
666 cpu_clock_offset = cpu_get_clock();
667 cpu_ticks_enabled = 0;
671 /***********************************************************/
674 #define QEMU_TIMER_REALTIME 0
675 #define QEMU_TIMER_VIRTUAL 1
679 /* XXX: add frequency */
687 struct QEMUTimer *next;
690 struct qemu_alarm_timer {
694 int (*start)(struct qemu_alarm_timer *t);
695 void (*stop)(struct qemu_alarm_timer *t);
696 void (*rearm)(struct qemu_alarm_timer *t);
700 #define ALARM_FLAG_DYNTICKS 0x1
701 #define ALARM_FLAG_EXPIRED 0x2
703 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
705 return t && (t->flags & ALARM_FLAG_DYNTICKS);
708 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
710 if (!alarm_has_dynticks(t))
716 /* TODO: MIN_TIMER_REARM_US should be optimized */
717 #define MIN_TIMER_REARM_US 250
719 static struct qemu_alarm_timer *alarm_timer;
723 struct qemu_alarm_win32 {
726 } alarm_win32_data = {0, -1};
728 static int win32_start_timer(struct qemu_alarm_timer *t);
729 static void win32_stop_timer(struct qemu_alarm_timer *t);
730 static void win32_rearm_timer(struct qemu_alarm_timer *t);
734 static int unix_start_timer(struct qemu_alarm_timer *t);
735 static void unix_stop_timer(struct qemu_alarm_timer *t);
739 static int dynticks_start_timer(struct qemu_alarm_timer *t);
740 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
741 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
743 static int hpet_start_timer(struct qemu_alarm_timer *t);
744 static void hpet_stop_timer(struct qemu_alarm_timer *t);
746 static int rtc_start_timer(struct qemu_alarm_timer *t);
747 static void rtc_stop_timer(struct qemu_alarm_timer *t);
749 #endif /* __linux__ */
753 /* Correlation between real and virtual time is always going to be
754 fairly approximate, so ignore small variation.
755 When the guest is idle real and virtual time will be aligned in
757 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
759 static void icount_adjust(void)
764 static int64_t last_delta;
765 /* If the VM is not running, then do nothing. */
769 cur_time = cpu_get_clock();
770 cur_icount = qemu_get_clock(vm_clock);
771 delta = cur_icount - cur_time;
772 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
774 && last_delta + ICOUNT_WOBBLE < delta * 2
775 && icount_time_shift > 0) {
776 /* The guest is getting too far ahead. Slow time down. */
780 && last_delta - ICOUNT_WOBBLE > delta * 2
781 && icount_time_shift < MAX_ICOUNT_SHIFT) {
782 /* The guest is getting too far behind. Speed time up. */
786 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
789 static void icount_adjust_rt(void * opaque)
791 qemu_mod_timer(icount_rt_timer,
792 qemu_get_clock(rt_clock) + 1000);
796 static void icount_adjust_vm(void * opaque)
798 qemu_mod_timer(icount_vm_timer,
799 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
803 static void init_icount_adjust(void)
805 /* Have both realtime and virtual time triggers for speed adjustment.
806 The realtime trigger catches emulated time passing too slowly,
807 the virtual time trigger catches emulated time passing too fast.
808 Realtime triggers occur even when idle, so use them less frequently
810 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
811 qemu_mod_timer(icount_rt_timer,
812 qemu_get_clock(rt_clock) + 1000);
813 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
814 qemu_mod_timer(icount_vm_timer,
815 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
818 static struct qemu_alarm_timer alarm_timers[] = {
821 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
822 dynticks_stop_timer, dynticks_rearm_timer, NULL},
823 /* HPET - if available - is preferred */
824 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
825 /* ...otherwise try RTC */
826 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
828 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
830 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
831 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
832 {"win32", 0, win32_start_timer,
833 win32_stop_timer, NULL, &alarm_win32_data},
838 static void show_available_alarms(void)
842 printf("Available alarm timers, in order of precedence:\n");
843 for (i = 0; alarm_timers[i].name; i++)
844 printf("%s\n", alarm_timers[i].name);
847 static void configure_alarms(char const *opt)
851 int count = ARRAY_SIZE(alarm_timers) - 1;
854 struct qemu_alarm_timer tmp;
856 if (!strcmp(opt, "?")) {
857 show_available_alarms();
861 arg = qemu_strdup(opt);
863 /* Reorder the array */
864 name = strtok(arg, ",");
866 for (i = 0; i < count && alarm_timers[i].name; i++) {
867 if (!strcmp(alarm_timers[i].name, name))
872 fprintf(stderr, "Unknown clock %s\n", name);
881 tmp = alarm_timers[i];
882 alarm_timers[i] = alarm_timers[cur];
883 alarm_timers[cur] = tmp;
887 name = strtok(NULL, ",");
893 /* Disable remaining timers */
894 for (i = cur; i < count; i++)
895 alarm_timers[i].name = NULL;
897 show_available_alarms();
905 static QEMUTimer *active_timers[2];
907 static QEMUClock *qemu_new_clock(int type)
910 clock = qemu_mallocz(sizeof(QEMUClock));
915 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
919 ts = qemu_mallocz(sizeof(QEMUTimer));
926 void qemu_free_timer(QEMUTimer *ts)
931 /* stop a timer, but do not dealloc it */
932 void qemu_del_timer(QEMUTimer *ts)
936 /* NOTE: this code must be signal safe because
937 qemu_timer_expired() can be called from a signal. */
938 pt = &active_timers[ts->clock->type];
951 /* modify the current timer so that it will be fired when current_time
952 >= expire_time. The corresponding callback will be called. */
953 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
959 /* add the timer in the sorted list */
960 /* NOTE: this code must be signal safe because
961 qemu_timer_expired() can be called from a signal. */
962 pt = &active_timers[ts->clock->type];
967 if (t->expire_time > expire_time)
971 ts->expire_time = expire_time;
975 /* Rearm if necessary */
976 if (pt == &active_timers[ts->clock->type]) {
977 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
978 qemu_rearm_alarm_timer(alarm_timer);
980 /* Interrupt execution to force deadline recalculation. */
986 int qemu_timer_pending(QEMUTimer *ts)
989 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
996 int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1000 return (timer_head->expire_time <= current_time);
1003 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1009 if (!ts || ts->expire_time > current_time)
1011 /* remove timer from the list before calling the callback */
1012 *ptimer_head = ts->next;
1015 /* run the callback (the timer list can be modified) */
1020 int64_t qemu_get_clock(QEMUClock *clock)
1022 switch(clock->type) {
1023 case QEMU_TIMER_REALTIME:
1024 return get_clock() / 1000000;
1026 case QEMU_TIMER_VIRTUAL:
1028 return cpu_get_icount();
1030 return cpu_get_clock();
1035 static void init_timers(void)
1038 ticks_per_sec = QEMU_TIMER_BASE;
1039 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1040 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1044 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1046 uint64_t expire_time;
1048 if (qemu_timer_pending(ts)) {
1049 expire_time = ts->expire_time;
1053 qemu_put_be64(f, expire_time);
1056 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1058 uint64_t expire_time;
1060 expire_time = qemu_get_be64(f);
1061 if (expire_time != -1) {
1062 qemu_mod_timer(ts, expire_time);
1068 static void timer_save(QEMUFile *f, void *opaque)
1070 if (cpu_ticks_enabled) {
1071 hw_error("cannot save state if virtual timers are running");
1073 qemu_put_be64(f, cpu_ticks_offset);
1074 qemu_put_be64(f, ticks_per_sec);
1075 qemu_put_be64(f, cpu_clock_offset);
1078 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1080 if (version_id != 1 && version_id != 2)
1082 if (cpu_ticks_enabled) {
1085 cpu_ticks_offset=qemu_get_be64(f);
1086 ticks_per_sec=qemu_get_be64(f);
1087 if (version_id == 2) {
1088 cpu_clock_offset=qemu_get_be64(f);
1093 static void qemu_event_increment(void);
1096 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1097 DWORD_PTR dwUser, DWORD_PTR dw1,
1100 static void host_alarm_handler(int host_signum)
1104 #define DISP_FREQ 1000
1106 static int64_t delta_min = INT64_MAX;
1107 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1109 ti = qemu_get_clock(vm_clock);
1110 if (last_clock != 0) {
1111 delta = ti - last_clock;
1112 if (delta < delta_min)
1114 if (delta > delta_max)
1117 if (++count == DISP_FREQ) {
1118 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1119 muldiv64(delta_min, 1000000, ticks_per_sec),
1120 muldiv64(delta_max, 1000000, ticks_per_sec),
1121 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1122 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1124 delta_min = INT64_MAX;
1132 if (alarm_has_dynticks(alarm_timer) ||
1134 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1135 qemu_get_clock(vm_clock))) ||
1136 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1137 qemu_get_clock(rt_clock))) {
1138 qemu_event_increment();
1139 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1141 #ifndef CONFIG_IOTHREAD
1143 /* stop the currently executing cpu because a timer occured */
1147 timer_alarm_pending = 1;
1148 qemu_notify_event();
1152 static int64_t qemu_next_deadline(void)
1156 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1157 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1158 qemu_get_clock(vm_clock);
1160 /* To avoid problems with overflow limit this to 2^32. */
1170 #if defined(__linux__) || defined(_WIN32)
1171 static uint64_t qemu_next_deadline_dyntick(void)
1179 delta = (qemu_next_deadline() + 999) / 1000;
1181 if (active_timers[QEMU_TIMER_REALTIME]) {
1182 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1183 qemu_get_clock(rt_clock))*1000;
1184 if (rtdelta < delta)
1188 if (delta < MIN_TIMER_REARM_US)
1189 delta = MIN_TIMER_REARM_US;
1197 /* Sets a specific flag */
1198 static int fcntl_setfl(int fd, int flag)
1202 flags = fcntl(fd, F_GETFL);
1206 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1212 #if defined(__linux__)
1214 #define RTC_FREQ 1024
1216 static void enable_sigio_timer(int fd)
1218 struct sigaction act;
1221 sigfillset(&act.sa_mask);
1223 act.sa_handler = host_alarm_handler;
1225 sigaction(SIGIO, &act, NULL);
1226 fcntl_setfl(fd, O_ASYNC);
1227 fcntl(fd, F_SETOWN, getpid());
1230 static int hpet_start_timer(struct qemu_alarm_timer *t)
1232 struct hpet_info info;
1235 fd = open("/dev/hpet", O_RDONLY);
1240 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1242 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1243 "error, but for better emulation accuracy type:\n"
1244 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1248 /* Check capabilities */
1249 r = ioctl(fd, HPET_INFO, &info);
1253 /* Enable periodic mode */
1254 r = ioctl(fd, HPET_EPI, 0);
1255 if (info.hi_flags && (r < 0))
1258 /* Enable interrupt */
1259 r = ioctl(fd, HPET_IE_ON, 0);
1263 enable_sigio_timer(fd);
1264 t->priv = (void *)(long)fd;
1272 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1274 int fd = (long)t->priv;
1279 static int rtc_start_timer(struct qemu_alarm_timer *t)
1282 unsigned long current_rtc_freq = 0;
1284 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1287 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
1288 if (current_rtc_freq != RTC_FREQ &&
1289 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1290 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1291 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1292 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1295 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1301 enable_sigio_timer(rtc_fd);
1303 t->priv = (void *)(long)rtc_fd;
1308 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1310 int rtc_fd = (long)t->priv;
1315 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1319 struct sigaction act;
1321 sigfillset(&act.sa_mask);
1323 act.sa_handler = host_alarm_handler;
1325 sigaction(SIGALRM, &act, NULL);
1328 * Initialize ev struct to 0 to avoid valgrind complaining
1329 * about uninitialized data in timer_create call
1331 memset(&ev, 0, sizeof(ev));
1332 ev.sigev_value.sival_int = 0;
1333 ev.sigev_notify = SIGEV_SIGNAL;
1334 ev.sigev_signo = SIGALRM;
1336 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1337 perror("timer_create");
1339 /* disable dynticks */
1340 fprintf(stderr, "Dynamic Ticks disabled\n");
1345 t->priv = (void *)(long)host_timer;
1350 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1352 timer_t host_timer = (timer_t)(long)t->priv;
1354 timer_delete(host_timer);
1357 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1359 timer_t host_timer = (timer_t)(long)t->priv;
1360 struct itimerspec timeout;
1361 int64_t nearest_delta_us = INT64_MAX;
1364 if (!active_timers[QEMU_TIMER_REALTIME] &&
1365 !active_timers[QEMU_TIMER_VIRTUAL])
1368 nearest_delta_us = qemu_next_deadline_dyntick();
1370 /* check whether a timer is already running */
1371 if (timer_gettime(host_timer, &timeout)) {
1373 fprintf(stderr, "Internal timer error: aborting\n");
1376 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1377 if (current_us && current_us <= nearest_delta_us)
1380 timeout.it_interval.tv_sec = 0;
1381 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1382 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1383 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1384 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1386 fprintf(stderr, "Internal timer error: aborting\n");
1391 #endif /* defined(__linux__) */
1393 static int unix_start_timer(struct qemu_alarm_timer *t)
1395 struct sigaction act;
1396 struct itimerval itv;
1400 sigfillset(&act.sa_mask);
1402 act.sa_handler = host_alarm_handler;
1404 sigaction(SIGALRM, &act, NULL);
1406 itv.it_interval.tv_sec = 0;
1407 /* for i386 kernel 2.6 to get 1 ms */
1408 itv.it_interval.tv_usec = 999;
1409 itv.it_value.tv_sec = 0;
1410 itv.it_value.tv_usec = 10 * 1000;
1412 err = setitimer(ITIMER_REAL, &itv, NULL);
1419 static void unix_stop_timer(struct qemu_alarm_timer *t)
1421 struct itimerval itv;
1423 memset(&itv, 0, sizeof(itv));
1424 setitimer(ITIMER_REAL, &itv, NULL);
1427 #endif /* !defined(_WIN32) */
1432 static int win32_start_timer(struct qemu_alarm_timer *t)
1435 struct qemu_alarm_win32 *data = t->priv;
1438 memset(&tc, 0, sizeof(tc));
1439 timeGetDevCaps(&tc, sizeof(tc));
1441 if (data->period < tc.wPeriodMin)
1442 data->period = tc.wPeriodMin;
1444 timeBeginPeriod(data->period);
1446 flags = TIME_CALLBACK_FUNCTION;
1447 if (alarm_has_dynticks(t))
1448 flags |= TIME_ONESHOT;
1450 flags |= TIME_PERIODIC;
1452 data->timerId = timeSetEvent(1, // interval (ms)
1453 data->period, // resolution
1454 host_alarm_handler, // function
1455 (DWORD)t, // parameter
1458 if (!data->timerId) {
1459 perror("Failed to initialize win32 alarm timer");
1460 timeEndPeriod(data->period);
1467 static void win32_stop_timer(struct qemu_alarm_timer *t)
1469 struct qemu_alarm_win32 *data = t->priv;
1471 timeKillEvent(data->timerId);
1472 timeEndPeriod(data->period);
1475 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1477 struct qemu_alarm_win32 *data = t->priv;
1478 uint64_t nearest_delta_us;
1480 if (!active_timers[QEMU_TIMER_REALTIME] &&
1481 !active_timers[QEMU_TIMER_VIRTUAL])
1484 nearest_delta_us = qemu_next_deadline_dyntick();
1485 nearest_delta_us /= 1000;
1487 timeKillEvent(data->timerId);
1489 data->timerId = timeSetEvent(1,
1493 TIME_ONESHOT | TIME_PERIODIC);
1495 if (!data->timerId) {
1496 perror("Failed to re-arm win32 alarm timer");
1498 timeEndPeriod(data->period);
1505 static int init_timer_alarm(void)
1507 struct qemu_alarm_timer *t = NULL;
1510 for (i = 0; alarm_timers[i].name; i++) {
1511 t = &alarm_timers[i];
1531 static void quit_timers(void)
1533 alarm_timer->stop(alarm_timer);
1537 /***********************************************************/
1538 /* host time/date access */
1539 void qemu_get_timedate(struct tm *tm, int offset)
1546 if (rtc_date_offset == -1) {
1550 ret = localtime(&ti);
1552 ti -= rtc_date_offset;
1556 memcpy(tm, ret, sizeof(struct tm));
1559 int qemu_timedate_diff(struct tm *tm)
1563 if (rtc_date_offset == -1)
1565 seconds = mktimegm(tm);
1567 seconds = mktime(tm);
1569 seconds = mktimegm(tm) + rtc_date_offset;
1571 return seconds - time(NULL);
1575 static void socket_cleanup(void)
1580 static int socket_init(void)
1585 ret = WSAStartup(MAKEWORD(2,2), &Data);
1587 err = WSAGetLastError();
1588 fprintf(stderr, "WSAStartup: %d\n", err);
1591 atexit(socket_cleanup);
1596 /***********************************************************/
1597 /* Bluetooth support */
1600 static struct HCIInfo *hci_table[MAX_NICS];
1602 static struct bt_vlan_s {
1603 struct bt_scatternet_s net;
1605 struct bt_vlan_s *next;
1608 /* find or alloc a new bluetooth "VLAN" */
1609 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1611 struct bt_vlan_s **pvlan, *vlan;
1612 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1616 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1618 pvlan = &first_bt_vlan;
1619 while (*pvlan != NULL)
1620 pvlan = &(*pvlan)->next;
1625 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1629 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1634 static struct HCIInfo null_hci = {
1635 .cmd_send = null_hci_send,
1636 .sco_send = null_hci_send,
1637 .acl_send = null_hci_send,
1638 .bdaddr_set = null_hci_addr_set,
1641 struct HCIInfo *qemu_next_hci(void)
1643 if (cur_hci == nb_hcis)
1646 return hci_table[cur_hci++];
1649 static struct HCIInfo *hci_init(const char *str)
1652 struct bt_scatternet_s *vlan = 0;
1654 if (!strcmp(str, "null"))
1657 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1659 return bt_host_hci(str[4] ? str + 5 : "hci0");
1660 else if (!strncmp(str, "hci", 3)) {
1663 if (!strncmp(str + 3, ",vlan=", 6)) {
1664 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1669 vlan = qemu_find_bt_vlan(0);
1671 return bt_new_hci(vlan);
1674 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1679 static int bt_hci_parse(const char *str)
1681 struct HCIInfo *hci;
1684 if (nb_hcis >= MAX_NICS) {
1685 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1689 hci = hci_init(str);
1698 bdaddr.b[5] = 0x56 + nb_hcis;
1699 hci->bdaddr_set(hci, bdaddr.b);
1701 hci_table[nb_hcis++] = hci;
1706 static void bt_vhci_add(int vlan_id)
1708 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1711 fprintf(stderr, "qemu: warning: adding a VHCI to "
1712 "an empty scatternet %i\n", vlan_id);
1714 bt_vhci_init(bt_new_hci(vlan));
1717 static struct bt_device_s *bt_device_add(const char *opt)
1719 struct bt_scatternet_s *vlan;
1721 char *endp = strstr(opt, ",vlan=");
1722 int len = (endp ? endp - opt : strlen(opt)) + 1;
1725 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1728 vlan_id = strtol(endp + 6, &endp, 0);
1730 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1735 vlan = qemu_find_bt_vlan(vlan_id);
1738 fprintf(stderr, "qemu: warning: adding a slave device to "
1739 "an empty scatternet %i\n", vlan_id);
1741 if (!strcmp(devname, "keyboard"))
1742 return bt_keyboard_init(vlan);
1744 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1748 static int bt_parse(const char *opt)
1750 const char *endp, *p;
1753 if (strstart(opt, "hci", &endp)) {
1754 if (!*endp || *endp == ',') {
1756 if (!strstart(endp, ",vlan=", 0))
1759 return bt_hci_parse(opt);
1761 } else if (strstart(opt, "vhci", &endp)) {
1762 if (!*endp || *endp == ',') {
1764 if (strstart(endp, ",vlan=", &p)) {
1765 vlan = strtol(p, (char **) &endp, 0);
1767 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1771 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1780 } else if (strstart(opt, "device:", &endp))
1781 return !bt_device_add(endp);
1783 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1787 /***********************************************************/
1788 /* QEMU Block devices */
1790 #define HD_ALIAS "index=%d,media=disk"
1791 #define CDROM_ALIAS "index=2,media=cdrom"
1792 #define FD_ALIAS "index=%d,if=floppy"
1793 #define PFLASH_ALIAS "if=pflash"
1794 #define MTD_ALIAS "if=mtd"
1795 #define SD_ALIAS "index=0,if=sd"
1797 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1804 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1807 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1809 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1810 __FUNCTION__, optstr);
1814 qemu_opt_set(opts, "file", file);
1818 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1822 /* seek interface, bus and unit */
1824 TAILQ_FOREACH(dinfo, &drives, next) {
1825 if (dinfo->type == type &&
1826 dinfo->bus == bus &&
1827 dinfo->unit == unit)
1834 DriveInfo *drive_get_by_id(const char *id)
1838 TAILQ_FOREACH(dinfo, &drives, next) {
1839 if (strcmp(id, dinfo->id))
1846 int drive_get_max_bus(BlockInterfaceType type)
1852 TAILQ_FOREACH(dinfo, &drives, next) {
1853 if(dinfo->type == type &&
1854 dinfo->bus > max_bus)
1855 max_bus = dinfo->bus;
1860 const char *drive_get_serial(BlockDriverState *bdrv)
1864 TAILQ_FOREACH(dinfo, &drives, next) {
1865 if (dinfo->bdrv == bdrv)
1866 return dinfo->serial;
1872 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1876 TAILQ_FOREACH(dinfo, &drives, next) {
1877 if (dinfo->bdrv == bdrv)
1878 return dinfo->onerror;
1881 return BLOCK_ERR_STOP_ENOSPC;
1884 static void bdrv_format_print(void *opaque, const char *name)
1886 fprintf(stderr, " %s", name);
1889 void drive_uninit(BlockDriverState *bdrv)
1893 TAILQ_FOREACH(dinfo, &drives, next) {
1894 if (dinfo->bdrv != bdrv)
1896 qemu_opts_del(dinfo->opts);
1897 TAILQ_REMOVE(&drives, dinfo, next);
1903 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1907 const char *file = NULL;
1910 const char *mediastr = "";
1911 BlockInterfaceType type;
1912 enum { MEDIA_DISK, MEDIA_CDROM } media;
1913 int bus_id, unit_id;
1914 int cyls, heads, secs, translation;
1915 BlockDriver *drv = NULL;
1916 QEMUMachine *machine = opaque;
1921 int bdrv_flags, onerror;
1922 const char *devaddr;
1928 translation = BIOS_ATA_TRANSLATION_AUTO;
1931 if (machine && machine->use_scsi) {
1933 max_devs = MAX_SCSI_DEVS;
1934 pstrcpy(devname, sizeof(devname), "scsi");
1937 max_devs = MAX_IDE_DEVS;
1938 pstrcpy(devname, sizeof(devname), "ide");
1942 /* extract parameters */
1943 bus_id = qemu_opt_get_number(opts, "bus", 0);
1944 unit_id = qemu_opt_get_number(opts, "unit", -1);
1945 index = qemu_opt_get_number(opts, "index", -1);
1947 cyls = qemu_opt_get_number(opts, "cyls", 0);
1948 heads = qemu_opt_get_number(opts, "heads", 0);
1949 secs = qemu_opt_get_number(opts, "secs", 0);
1951 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
1953 file = qemu_opt_get(opts, "file");
1954 serial = qemu_opt_get(opts, "serial");
1956 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
1957 pstrcpy(devname, sizeof(devname), buf);
1958 if (!strcmp(buf, "ide")) {
1960 max_devs = MAX_IDE_DEVS;
1961 } else if (!strcmp(buf, "scsi")) {
1963 max_devs = MAX_SCSI_DEVS;
1964 } else if (!strcmp(buf, "floppy")) {
1967 } else if (!strcmp(buf, "pflash")) {
1970 } else if (!strcmp(buf, "mtd")) {
1973 } else if (!strcmp(buf, "sd")) {
1976 } else if (!strcmp(buf, "virtio")) {
1979 } else if (!strcmp(buf, "xen")) {
1982 } else if (!strcmp(buf, "none")) {
1986 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
1991 if (cyls || heads || secs) {
1992 if (cyls < 1 || cyls > 16383) {
1993 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
1996 if (heads < 1 || heads > 16) {
1997 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
2000 if (secs < 1 || secs > 63) {
2001 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
2006 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
2009 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2013 if (!strcmp(buf, "none"))
2014 translation = BIOS_ATA_TRANSLATION_NONE;
2015 else if (!strcmp(buf, "lba"))
2016 translation = BIOS_ATA_TRANSLATION_LBA;
2017 else if (!strcmp(buf, "auto"))
2018 translation = BIOS_ATA_TRANSLATION_AUTO;
2020 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2025 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2026 if (!strcmp(buf, "disk")) {
2028 } else if (!strcmp(buf, "cdrom")) {
2029 if (cyls || secs || heads) {
2031 "qemu: '%s' invalid physical CHS format\n", buf);
2034 media = MEDIA_CDROM;
2036 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2041 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2042 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2044 else if (!strcmp(buf, "writethrough"))
2046 else if (!strcmp(buf, "writeback"))
2049 fprintf(stderr, "qemu: invalid cache option\n");
2054 #ifdef CONFIG_LINUX_AIO
2055 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2056 if (!strcmp(buf, "threads"))
2058 else if (!strcmp(buf, "native"))
2061 fprintf(stderr, "qemu: invalid aio option\n");
2067 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2068 if (strcmp(buf, "?") == 0) {
2069 fprintf(stderr, "qemu: Supported formats:");
2070 bdrv_iterate_format(bdrv_format_print, NULL);
2071 fprintf(stderr, "\n");
2074 drv = bdrv_find_format(buf);
2076 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2081 onerror = BLOCK_ERR_STOP_ENOSPC;
2082 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2083 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2084 fprintf(stderr, "werror is no supported by this format\n");
2087 if (!strcmp(buf, "ignore"))
2088 onerror = BLOCK_ERR_IGNORE;
2089 else if (!strcmp(buf, "enospc"))
2090 onerror = BLOCK_ERR_STOP_ENOSPC;
2091 else if (!strcmp(buf, "stop"))
2092 onerror = BLOCK_ERR_STOP_ANY;
2093 else if (!strcmp(buf, "report"))
2094 onerror = BLOCK_ERR_REPORT;
2096 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
2101 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2102 if (type != IF_VIRTIO) {
2103 fprintf(stderr, "addr is not supported\n");
2108 /* compute bus and unit according index */
2111 if (bus_id != 0 || unit_id != -1) {
2113 "qemu: index cannot be used with bus and unit\n");
2121 unit_id = index % max_devs;
2122 bus_id = index / max_devs;
2126 /* if user doesn't specify a unit_id,
2127 * try to find the first free
2130 if (unit_id == -1) {
2132 while (drive_get(type, bus_id, unit_id) != NULL) {
2134 if (max_devs && unit_id >= max_devs) {
2135 unit_id -= max_devs;
2143 if (max_devs && unit_id >= max_devs) {
2144 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2145 unit_id, max_devs - 1);
2150 * ignore multiple definitions
2153 if (drive_get(type, bus_id, unit_id) != NULL) {
2160 dinfo = qemu_mallocz(sizeof(*dinfo));
2161 if ((buf = qemu_opts_id(opts)) != NULL) {
2162 dinfo->id = qemu_strdup(buf);
2164 /* no id supplied -> create one */
2165 dinfo->id = qemu_mallocz(32);
2166 if (type == IF_IDE || type == IF_SCSI)
2167 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2169 snprintf(dinfo->id, 32, "%s%i%s%i",
2170 devname, bus_id, mediastr, unit_id);
2172 snprintf(dinfo->id, 32, "%s%s%i",
2173 devname, mediastr, unit_id);
2175 dinfo->bdrv = bdrv_new(dinfo->id);
2176 dinfo->devaddr = devaddr;
2178 dinfo->bus = bus_id;
2179 dinfo->unit = unit_id;
2180 dinfo->onerror = onerror;
2183 strncpy(dinfo->serial, serial, sizeof(serial));
2184 TAILQ_INSERT_TAIL(&drives, dinfo, next);
2193 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2194 bdrv_set_translation_hint(dinfo->bdrv, translation);
2198 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2203 /* FIXME: This isn't really a floppy, but it's a reasonable
2206 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2213 /* add virtio block device */
2214 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2215 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2216 qemu_opt_set(opts, "drive", dinfo->id);
2218 qemu_opt_set(opts, "addr", devaddr);
2229 bdrv_flags |= BDRV_O_SNAPSHOT;
2230 cache = 2; /* always use write-back with snapshot */
2232 if (cache == 0) /* no caching */
2233 bdrv_flags |= BDRV_O_NOCACHE;
2234 else if (cache == 2) /* write-back */
2235 bdrv_flags |= BDRV_O_CACHE_WB;
2238 bdrv_flags |= BDRV_O_NATIVE_AIO;
2240 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2243 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2244 fprintf(stderr, "qemu: could not open disk image %s\n",
2249 if (bdrv_key_required(dinfo->bdrv))
2255 static int drive_init_func(QemuOpts *opts, void *opaque)
2257 QEMUMachine *machine = opaque;
2258 int fatal_error = 0;
2260 if (drive_init(opts, machine, &fatal_error) == NULL) {
2267 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2269 if (NULL == qemu_opt_get(opts, "snapshot")) {
2270 qemu_opt_set(opts, "snapshot", "on");
2275 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2277 boot_set_handler = func;
2278 boot_set_opaque = opaque;
2281 int qemu_boot_set(const char *boot_devices)
2283 if (!boot_set_handler) {
2286 return boot_set_handler(boot_set_opaque, boot_devices);
2289 static int parse_bootdevices(char *devices)
2291 /* We just do some generic consistency checks */
2295 for (p = devices; *p != '\0'; p++) {
2296 /* Allowed boot devices are:
2297 * a-b: floppy disk drives
2298 * c-f: IDE disk drives
2299 * g-m: machine implementation dependant drives
2300 * n-p: network devices
2301 * It's up to each machine implementation to check if the given boot
2302 * devices match the actual hardware implementation and firmware
2305 if (*p < 'a' || *p > 'p') {
2306 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2309 if (bitmap & (1 << (*p - 'a'))) {
2310 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2313 bitmap |= 1 << (*p - 'a');
2318 static void restore_boot_devices(void *opaque)
2320 char *standard_boot_devices = opaque;
2322 qemu_boot_set(standard_boot_devices);
2324 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2325 qemu_free(standard_boot_devices);
2328 static void numa_add(const char *optarg)
2332 unsigned long long value, endvalue;
2335 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2336 if (!strcmp(option, "node")) {
2337 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2338 nodenr = nb_numa_nodes;
2340 nodenr = strtoull(option, NULL, 10);
2343 if (get_param_value(option, 128, "mem", optarg) == 0) {
2344 node_mem[nodenr] = 0;
2346 value = strtoull(option, &endptr, 0);
2348 case 0: case 'M': case 'm':
2355 node_mem[nodenr] = value;
2357 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2358 node_cpumask[nodenr] = 0;
2360 value = strtoull(option, &endptr, 10);
2363 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2365 if (*endptr == '-') {
2366 endvalue = strtoull(endptr+1, &endptr, 10);
2367 if (endvalue >= 63) {
2370 "only 63 CPUs in NUMA mode supported.\n");
2372 value = (1 << (endvalue + 1)) - (1 << value);
2377 node_cpumask[nodenr] = value;
2384 static void smp_parse(const char *optarg)
2386 int smp, sockets = 0, threads = 0, cores = 0;
2390 smp = strtoul(optarg, &endptr, 10);
2391 if (endptr != optarg) {
2392 if (*endptr == ',') {
2396 if (get_param_value(option, 128, "sockets", endptr) != 0)
2397 sockets = strtoull(option, NULL, 10);
2398 if (get_param_value(option, 128, "cores", endptr) != 0)
2399 cores = strtoull(option, NULL, 10);
2400 if (get_param_value(option, 128, "threads", endptr) != 0)
2401 threads = strtoull(option, NULL, 10);
2402 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2403 max_cpus = strtoull(option, NULL, 10);
2405 /* compute missing values, prefer sockets over cores over threads */
2406 if (smp == 0 || sockets == 0) {
2407 sockets = sockets > 0 ? sockets : 1;
2408 cores = cores > 0 ? cores : 1;
2409 threads = threads > 0 ? threads : 1;
2411 smp = cores * threads * sockets;
2413 sockets = smp / (cores * threads);
2417 threads = threads > 0 ? threads : 1;
2418 cores = smp / (sockets * threads);
2421 sockets = smp / (cores * threads);
2423 threads = smp / (cores * sockets);
2428 smp_cores = cores > 0 ? cores : 1;
2429 smp_threads = threads > 0 ? threads : 1;
2431 max_cpus = smp_cpus;
2434 /***********************************************************/
2437 static void usb_msd_password_cb(void *opaque, int err)
2439 USBDevice *dev = opaque;
2442 usb_device_attach(dev);
2444 dev->info->handle_destroy(dev);
2453 .qdev = "QEMU USB Mouse",
2456 .qdev = "QEMU USB Tablet",
2459 .qdev = "QEMU USB Keyboard",
2461 .name = "wacom-tablet",
2462 .qdev = "QEMU PenPartner Tablet",
2466 static int usb_device_add(const char *devname, int is_hotplug)
2469 USBBus *bus = usb_bus_find(-1 /* any */);
2470 USBDevice *dev = NULL;
2476 /* simple devices which don't need extra care */
2477 for (i = 0; i < ARRAY_SIZE(usbdevs); i++) {
2478 if (strcmp(devname, usbdevs[i].name) != 0)
2480 dev = usb_create_simple(bus, usbdevs[i].qdev);
2484 /* the other ones */
2485 if (strstart(devname, "host:", &p)) {
2486 dev = usb_host_device_open(p);
2487 } else if (strstart(devname, "disk:", &p)) {
2488 BlockDriverState *bs;
2490 dev = usb_msd_init(p);
2493 bs = usb_msd_get_bdrv(dev);
2494 if (bdrv_key_required(bs)) {
2497 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2502 } else if (strstart(devname, "serial:", &p)) {
2503 dev = usb_serial_init(p);
2504 #ifdef CONFIG_BRLAPI
2505 } else if (!strcmp(devname, "braille")) {
2506 dev = usb_baum_init();
2508 } else if (strstart(devname, "net:", &p)) {
2511 if (net_client_init(NULL, "nic", p) < 0)
2513 nd_table[nic].model = "usb";
2514 dev = usb_net_init(&nd_table[nic]);
2515 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2516 dev = usb_bt_init(devname[2] ? hci_init(p) :
2517 bt_new_hci(qemu_find_bt_vlan(0)));
2528 static int usb_device_del(const char *devname)
2533 if (strstart(devname, "host:", &p))
2534 return usb_host_device_close(p);
2539 p = strchr(devname, '.');
2542 bus_num = strtoul(devname, NULL, 0);
2543 addr = strtoul(p + 1, NULL, 0);
2545 return usb_device_delete_addr(bus_num, addr);
2548 static int usb_parse(const char *cmdline)
2550 return usb_device_add(cmdline, 0);
2553 void do_usb_add(Monitor *mon, const QDict *qdict)
2555 usb_device_add(qdict_get_str(qdict, "devname"), 1);
2558 void do_usb_del(Monitor *mon, const QDict *qdict)
2560 usb_device_del(qdict_get_str(qdict, "devname"));
2563 /***********************************************************/
2564 /* PCMCIA/Cardbus */
2566 static struct pcmcia_socket_entry_s {
2567 PCMCIASocket *socket;
2568 struct pcmcia_socket_entry_s *next;
2569 } *pcmcia_sockets = 0;
2571 void pcmcia_socket_register(PCMCIASocket *socket)
2573 struct pcmcia_socket_entry_s *entry;
2575 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2576 entry->socket = socket;
2577 entry->next = pcmcia_sockets;
2578 pcmcia_sockets = entry;
2581 void pcmcia_socket_unregister(PCMCIASocket *socket)
2583 struct pcmcia_socket_entry_s *entry, **ptr;
2585 ptr = &pcmcia_sockets;
2586 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2587 if (entry->socket == socket) {
2593 void pcmcia_info(Monitor *mon)
2595 struct pcmcia_socket_entry_s *iter;
2597 if (!pcmcia_sockets)
2598 monitor_printf(mon, "No PCMCIA sockets\n");
2600 for (iter = pcmcia_sockets; iter; iter = iter->next)
2601 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2602 iter->socket->attached ? iter->socket->card_string :
2606 /***********************************************************/
2607 /* register display */
2609 struct DisplayAllocator default_allocator = {
2610 defaultallocator_create_displaysurface,
2611 defaultallocator_resize_displaysurface,
2612 defaultallocator_free_displaysurface
2615 void register_displaystate(DisplayState *ds)
2625 DisplayState *get_displaystate(void)
2627 return display_state;
2630 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2632 if(ds->allocator == &default_allocator) ds->allocator = da;
2633 return ds->allocator;
2638 static void dumb_display_init(void)
2640 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2641 ds->allocator = &default_allocator;
2642 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2643 register_displaystate(ds);
2646 /***********************************************************/
2649 typedef struct IOHandlerRecord {
2651 IOCanRWHandler *fd_read_poll;
2653 IOHandler *fd_write;
2656 /* temporary data */
2658 struct IOHandlerRecord *next;
2661 static IOHandlerRecord *first_io_handler;
2663 /* XXX: fd_read_poll should be suppressed, but an API change is
2664 necessary in the character devices to suppress fd_can_read(). */
2665 int qemu_set_fd_handler2(int fd,
2666 IOCanRWHandler *fd_read_poll,
2668 IOHandler *fd_write,
2671 IOHandlerRecord **pioh, *ioh;
2673 if (!fd_read && !fd_write) {
2674 pioh = &first_io_handler;
2679 if (ioh->fd == fd) {
2686 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2690 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2691 ioh->next = first_io_handler;
2692 first_io_handler = ioh;
2695 ioh->fd_read_poll = fd_read_poll;
2696 ioh->fd_read = fd_read;
2697 ioh->fd_write = fd_write;
2698 ioh->opaque = opaque;
2704 int qemu_set_fd_handler(int fd,
2706 IOHandler *fd_write,
2709 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2713 /***********************************************************/
2714 /* Polling handling */
2716 typedef struct PollingEntry {
2719 struct PollingEntry *next;
2722 static PollingEntry *first_polling_entry;
2724 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2726 PollingEntry **ppe, *pe;
2727 pe = qemu_mallocz(sizeof(PollingEntry));
2729 pe->opaque = opaque;
2730 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2735 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2737 PollingEntry **ppe, *pe;
2738 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2740 if (pe->func == func && pe->opaque == opaque) {
2748 /***********************************************************/
2749 /* Wait objects support */
2750 typedef struct WaitObjects {
2752 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2753 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2754 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2757 static WaitObjects wait_objects = {0};
2759 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2761 WaitObjects *w = &wait_objects;
2763 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2765 w->events[w->num] = handle;
2766 w->func[w->num] = func;
2767 w->opaque[w->num] = opaque;
2772 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2775 WaitObjects *w = &wait_objects;
2778 for (i = 0; i < w->num; i++) {
2779 if (w->events[i] == handle)
2782 w->events[i] = w->events[i + 1];
2783 w->func[i] = w->func[i + 1];
2784 w->opaque[i] = w->opaque[i + 1];
2792 /***********************************************************/
2793 /* ram save/restore */
2795 #define BDRV_HASH_BLOCK_SIZE 1024
2796 #define IOBUF_SIZE 4096
2797 #define RAM_CBLOCK_MAGIC 0xfabe
2799 typedef struct RamDecompressState {
2802 uint8_t buf[IOBUF_SIZE];
2803 } RamDecompressState;
2805 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2808 memset(s, 0, sizeof(*s));
2810 ret = inflateInit(&s->zstream);
2816 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2820 s->zstream.avail_out = len;
2821 s->zstream.next_out = buf;
2822 while (s->zstream.avail_out > 0) {
2823 if (s->zstream.avail_in == 0) {
2824 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2826 clen = qemu_get_be16(s->f);
2827 if (clen > IOBUF_SIZE)
2829 qemu_get_buffer(s->f, s->buf, clen);
2830 s->zstream.avail_in = clen;
2831 s->zstream.next_in = s->buf;
2833 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2834 if (ret != Z_OK && ret != Z_STREAM_END) {
2841 static void ram_decompress_close(RamDecompressState *s)
2843 inflateEnd(&s->zstream);
2846 #define RAM_SAVE_FLAG_FULL 0x01
2847 #define RAM_SAVE_FLAG_COMPRESS 0x02
2848 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2849 #define RAM_SAVE_FLAG_PAGE 0x08
2850 #define RAM_SAVE_FLAG_EOS 0x10
2852 static int is_dup_page(uint8_t *page, uint8_t ch)
2854 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2855 uint32_t *array = (uint32_t *)page;
2858 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2859 if (array[i] != val)
2866 static int ram_save_block(QEMUFile *f)
2868 static ram_addr_t current_addr = 0;
2869 ram_addr_t saved_addr = current_addr;
2870 ram_addr_t addr = 0;
2873 while (addr < last_ram_offset) {
2874 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2877 cpu_physical_memory_reset_dirty(current_addr,
2878 current_addr + TARGET_PAGE_SIZE,
2879 MIGRATION_DIRTY_FLAG);
2881 p = qemu_get_ram_ptr(current_addr);
2883 if (is_dup_page(p, *p)) {
2884 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2885 qemu_put_byte(f, *p);
2887 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2888 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2894 addr += TARGET_PAGE_SIZE;
2895 current_addr = (saved_addr + addr) % last_ram_offset;
2901 static uint64_t bytes_transferred = 0;
2903 static ram_addr_t ram_save_remaining(void)
2906 ram_addr_t count = 0;
2908 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2909 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2916 uint64_t ram_bytes_remaining(void)
2918 return ram_save_remaining() * TARGET_PAGE_SIZE;
2921 uint64_t ram_bytes_transferred(void)
2923 return bytes_transferred;
2926 uint64_t ram_bytes_total(void)
2928 return last_ram_offset;
2931 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
2934 uint64_t bytes_transferred_last;
2936 uint64_t expected_time = 0;
2938 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2939 qemu_file_set_error(f);
2944 /* Make sure all dirty bits are set */
2945 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2946 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2947 cpu_physical_memory_set_dirty(addr);
2950 /* Enable dirty memory tracking */
2951 cpu_physical_memory_set_dirty_tracking(1);
2953 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
2956 bytes_transferred_last = bytes_transferred;
2957 bwidth = get_clock();
2959 while (!qemu_file_rate_limit(f)) {
2962 ret = ram_save_block(f);
2963 bytes_transferred += ret * TARGET_PAGE_SIZE;
2964 if (ret == 0) /* no more blocks */
2968 bwidth = get_clock() - bwidth;
2969 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2971 /* if we haven't transferred anything this round, force expected_time to a
2972 * a very high value, but without crashing */
2976 /* try transferring iterative blocks of memory */
2980 /* flush all remaining blocks regardless of rate limiting */
2981 while (ram_save_block(f) != 0) {
2982 bytes_transferred += TARGET_PAGE_SIZE;
2984 cpu_physical_memory_set_dirty_tracking(0);
2987 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2989 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2991 return (stage == 2) && (expected_time <= migrate_max_downtime());
2994 static int ram_load_dead(QEMUFile *f, void *opaque)
2996 RamDecompressState s1, *s = &s1;
3000 if (ram_decompress_open(s, f) < 0)
3002 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
3003 if (ram_decompress_buf(s, buf, 1) < 0) {
3004 fprintf(stderr, "Error while reading ram block header\n");
3008 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3009 BDRV_HASH_BLOCK_SIZE) < 0) {
3010 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
3015 printf("Error block header\n");
3019 ram_decompress_close(s);
3024 static int ram_load(QEMUFile *f, void *opaque, int version_id)
3029 if (version_id == 2) {
3030 if (qemu_get_be32(f) != last_ram_offset)
3032 return ram_load_dead(f, opaque);
3035 if (version_id != 3)
3039 addr = qemu_get_be64(f);
3041 flags = addr & ~TARGET_PAGE_MASK;
3042 addr &= TARGET_PAGE_MASK;
3044 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
3045 if (addr != last_ram_offset)
3049 if (flags & RAM_SAVE_FLAG_FULL) {
3050 if (ram_load_dead(f, opaque) < 0)
3054 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3055 uint8_t ch = qemu_get_byte(f);
3056 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3059 (!kvm_enabled() || kvm_has_sync_mmu())) {
3060 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
3063 } else if (flags & RAM_SAVE_FLAG_PAGE)
3064 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
3065 } while (!(flags & RAM_SAVE_FLAG_EOS));
3070 void qemu_service_io(void)
3072 qemu_notify_event();
3075 /***********************************************************/
3076 /* bottom halves (can be seen as timers which expire ASAP) */
3087 static QEMUBH *first_bh = NULL;
3089 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3092 bh = qemu_mallocz(sizeof(QEMUBH));
3094 bh->opaque = opaque;
3095 bh->next = first_bh;
3100 int qemu_bh_poll(void)
3106 for (bh = first_bh; bh; bh = bh->next) {
3107 if (!bh->deleted && bh->scheduled) {
3116 /* remove deleted bhs */
3130 void qemu_bh_schedule_idle(QEMUBH *bh)
3138 void qemu_bh_schedule(QEMUBH *bh)
3144 /* stop the currently executing CPU to execute the BH ASAP */
3145 qemu_notify_event();
3148 void qemu_bh_cancel(QEMUBH *bh)
3153 void qemu_bh_delete(QEMUBH *bh)
3159 static void qemu_bh_update_timeout(int *timeout)
3163 for (bh = first_bh; bh; bh = bh->next) {
3164 if (!bh->deleted && bh->scheduled) {
3166 /* idle bottom halves will be polled at least
3168 *timeout = MIN(10, *timeout);
3170 /* non-idle bottom halves will be executed
3179 /***********************************************************/
3180 /* machine registration */
3182 static QEMUMachine *first_machine = NULL;
3183 QEMUMachine *current_machine = NULL;
3185 int qemu_register_machine(QEMUMachine *m)
3188 pm = &first_machine;
3196 static QEMUMachine *find_machine(const char *name)
3200 for(m = first_machine; m != NULL; m = m->next) {
3201 if (!strcmp(m->name, name))
3203 if (m->alias && !strcmp(m->alias, name))
3209 static QEMUMachine *find_default_machine(void)
3213 for(m = first_machine; m != NULL; m = m->next) {
3214 if (m->is_default) {
3221 /***********************************************************/
3222 /* main execution loop */
3224 static void gui_update(void *opaque)
3226 uint64_t interval = GUI_REFRESH_INTERVAL;
3227 DisplayState *ds = opaque;
3228 DisplayChangeListener *dcl = ds->listeners;
3232 while (dcl != NULL) {
3233 if (dcl->gui_timer_interval &&
3234 dcl->gui_timer_interval < interval)
3235 interval = dcl->gui_timer_interval;
3238 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3241 static void nographic_update(void *opaque)
3243 uint64_t interval = GUI_REFRESH_INTERVAL;
3245 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3248 struct vm_change_state_entry {
3249 VMChangeStateHandler *cb;
3251 LIST_ENTRY (vm_change_state_entry) entries;
3254 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3256 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3259 VMChangeStateEntry *e;
3261 e = qemu_mallocz(sizeof (*e));
3265 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3269 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3271 LIST_REMOVE (e, entries);
3275 static void vm_state_notify(int running, int reason)
3277 VMChangeStateEntry *e;
3279 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3280 e->cb(e->opaque, running, reason);
3284 static void resume_all_vcpus(void);
3285 static void pause_all_vcpus(void);
3292 vm_state_notify(1, 0);
3293 qemu_rearm_alarm_timer(alarm_timer);
3298 /* reset/shutdown handler */
3300 typedef struct QEMUResetEntry {
3301 TAILQ_ENTRY(QEMUResetEntry) entry;
3302 QEMUResetHandler *func;
3306 static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3307 TAILQ_HEAD_INITIALIZER(reset_handlers);
3308 static int reset_requested;
3309 static int shutdown_requested;
3310 static int powerdown_requested;
3311 static int debug_requested;
3312 static int vmstop_requested;
3314 int qemu_shutdown_requested(void)
3316 int r = shutdown_requested;
3317 shutdown_requested = 0;
3321 int qemu_reset_requested(void)
3323 int r = reset_requested;
3324 reset_requested = 0;
3328 int qemu_powerdown_requested(void)
3330 int r = powerdown_requested;
3331 powerdown_requested = 0;
3335 static int qemu_debug_requested(void)
3337 int r = debug_requested;
3338 debug_requested = 0;
3342 static int qemu_vmstop_requested(void)
3344 int r = vmstop_requested;
3345 vmstop_requested = 0;
3349 static void do_vm_stop(int reason)
3352 cpu_disable_ticks();
3355 vm_state_notify(0, reason);
3359 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3361 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3364 re->opaque = opaque;
3365 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3368 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3372 TAILQ_FOREACH(re, &reset_handlers, entry) {
3373 if (re->func == func && re->opaque == opaque) {
3374 TAILQ_REMOVE(&reset_handlers, re, entry);
3381 void qemu_system_reset(void)
3383 QEMUResetEntry *re, *nre;
3385 /* reset all devices */
3386 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3387 re->func(re->opaque);
3391 void qemu_system_reset_request(void)
3394 shutdown_requested = 1;
3396 reset_requested = 1;
3398 qemu_notify_event();
3401 void qemu_system_shutdown_request(void)
3403 shutdown_requested = 1;
3404 qemu_notify_event();
3407 void qemu_system_powerdown_request(void)
3409 powerdown_requested = 1;
3410 qemu_notify_event();
3413 #ifdef CONFIG_IOTHREAD
3414 static void qemu_system_vmstop_request(int reason)
3416 vmstop_requested = reason;
3417 qemu_notify_event();
3422 static int io_thread_fd = -1;
3424 static void qemu_event_increment(void)
3426 static const char byte = 0;
3428 if (io_thread_fd == -1)
3431 write(io_thread_fd, &byte, sizeof(byte));
3434 static void qemu_event_read(void *opaque)
3436 int fd = (unsigned long)opaque;
3439 /* Drain the notify pipe */
3442 len = read(fd, buffer, sizeof(buffer));
3443 } while ((len == -1 && errno == EINTR) || len > 0);
3446 static int qemu_event_init(void)
3455 err = fcntl_setfl(fds[0], O_NONBLOCK);
3459 err = fcntl_setfl(fds[1], O_NONBLOCK);
3463 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3464 (void *)(unsigned long)fds[0]);
3466 io_thread_fd = fds[1];
3475 HANDLE qemu_event_handle;
3477 static void dummy_event_handler(void *opaque)
3481 static int qemu_event_init(void)
3483 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3484 if (!qemu_event_handle) {
3485 perror("Failed CreateEvent");
3488 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3492 static void qemu_event_increment(void)
3494 SetEvent(qemu_event_handle);
3498 static int cpu_can_run(CPUState *env)
3507 #ifndef CONFIG_IOTHREAD
3508 static int qemu_init_main_loop(void)
3510 return qemu_event_init();
3513 void qemu_init_vcpu(void *_env)
3515 CPUState *env = _env;
3519 env->nr_cores = smp_cores;
3520 env->nr_threads = smp_threads;
3524 int qemu_cpu_self(void *env)
3529 static void resume_all_vcpus(void)
3533 static void pause_all_vcpus(void)
3537 void qemu_cpu_kick(void *env)
3542 void qemu_notify_event(void)
3544 CPUState *env = cpu_single_env;
3551 #define qemu_mutex_lock_iothread() do { } while (0)
3552 #define qemu_mutex_unlock_iothread() do { } while (0)
3554 void vm_stop(int reason)
3559 #else /* CONFIG_IOTHREAD */
3561 #include "qemu-thread.h"
3563 QemuMutex qemu_global_mutex;
3564 static QemuMutex qemu_fair_mutex;
3566 static QemuThread io_thread;
3568 static QemuThread *tcg_cpu_thread;
3569 static QemuCond *tcg_halt_cond;
3571 static int qemu_system_ready;
3573 static QemuCond qemu_cpu_cond;
3575 static QemuCond qemu_system_cond;
3576 static QemuCond qemu_pause_cond;
3578 static void block_io_signals(void);
3579 static void unblock_io_signals(void);
3580 static int tcg_has_work(void);
3582 static int qemu_init_main_loop(void)
3586 ret = qemu_event_init();
3590 qemu_cond_init(&qemu_pause_cond);
3591 qemu_mutex_init(&qemu_fair_mutex);
3592 qemu_mutex_init(&qemu_global_mutex);
3593 qemu_mutex_lock(&qemu_global_mutex);
3595 unblock_io_signals();
3596 qemu_thread_self(&io_thread);
3601 static void qemu_wait_io_event(CPUState *env)
3603 while (!tcg_has_work())
3604 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3606 qemu_mutex_unlock(&qemu_global_mutex);
3609 * Users of qemu_global_mutex can be starved, having no chance
3610 * to acquire it since this path will get to it first.
3611 * So use another lock to provide fairness.
3613 qemu_mutex_lock(&qemu_fair_mutex);
3614 qemu_mutex_unlock(&qemu_fair_mutex);
3616 qemu_mutex_lock(&qemu_global_mutex);
3620 qemu_cond_signal(&qemu_pause_cond);
3624 static int qemu_cpu_exec(CPUState *env);
3626 static void *kvm_cpu_thread_fn(void *arg)
3628 CPUState *env = arg;
3631 qemu_thread_self(env->thread);
3635 /* signal CPU creation */
3636 qemu_mutex_lock(&qemu_global_mutex);
3638 qemu_cond_signal(&qemu_cpu_cond);
3640 /* and wait for machine initialization */
3641 while (!qemu_system_ready)
3642 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3645 if (cpu_can_run(env))
3647 qemu_wait_io_event(env);
3653 static void tcg_cpu_exec(void);
3655 static void *tcg_cpu_thread_fn(void *arg)
3657 CPUState *env = arg;
3660 qemu_thread_self(env->thread);
3662 /* signal CPU creation */
3663 qemu_mutex_lock(&qemu_global_mutex);
3664 for (env = first_cpu; env != NULL; env = env->next_cpu)
3666 qemu_cond_signal(&qemu_cpu_cond);
3668 /* and wait for machine initialization */
3669 while (!qemu_system_ready)
3670 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3674 qemu_wait_io_event(cur_cpu);
3680 void qemu_cpu_kick(void *_env)
3682 CPUState *env = _env;
3683 qemu_cond_broadcast(env->halt_cond);
3685 qemu_thread_signal(env->thread, SIGUSR1);
3688 int qemu_cpu_self(void *env)
3690 return (cpu_single_env != NULL);
3693 static void cpu_signal(int sig)
3696 cpu_exit(cpu_single_env);
3699 static void block_io_signals(void)
3702 struct sigaction sigact;
3705 sigaddset(&set, SIGUSR2);
3706 sigaddset(&set, SIGIO);
3707 sigaddset(&set, SIGALRM);
3708 pthread_sigmask(SIG_BLOCK, &set, NULL);
3711 sigaddset(&set, SIGUSR1);
3712 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3714 memset(&sigact, 0, sizeof(sigact));
3715 sigact.sa_handler = cpu_signal;
3716 sigaction(SIGUSR1, &sigact, NULL);
3719 static void unblock_io_signals(void)
3724 sigaddset(&set, SIGUSR2);
3725 sigaddset(&set, SIGIO);
3726 sigaddset(&set, SIGALRM);
3727 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3730 sigaddset(&set, SIGUSR1);
3731 pthread_sigmask(SIG_BLOCK, &set, NULL);
3734 static void qemu_signal_lock(unsigned int msecs)
3736 qemu_mutex_lock(&qemu_fair_mutex);
3738 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3739 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3740 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3743 qemu_mutex_unlock(&qemu_fair_mutex);
3746 static void qemu_mutex_lock_iothread(void)
3748 if (kvm_enabled()) {
3749 qemu_mutex_lock(&qemu_fair_mutex);
3750 qemu_mutex_lock(&qemu_global_mutex);
3751 qemu_mutex_unlock(&qemu_fair_mutex);
3753 qemu_signal_lock(100);
3756 static void qemu_mutex_unlock_iothread(void)
3758 qemu_mutex_unlock(&qemu_global_mutex);
3761 static int all_vcpus_paused(void)
3763 CPUState *penv = first_cpu;
3768 penv = (CPUState *)penv->next_cpu;
3774 static void pause_all_vcpus(void)
3776 CPUState *penv = first_cpu;
3780 qemu_thread_signal(penv->thread, SIGUSR1);
3781 qemu_cpu_kick(penv);
3782 penv = (CPUState *)penv->next_cpu;
3785 while (!all_vcpus_paused()) {
3786 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3789 qemu_thread_signal(penv->thread, SIGUSR1);
3790 penv = (CPUState *)penv->next_cpu;
3795 static void resume_all_vcpus(void)
3797 CPUState *penv = first_cpu;
3802 qemu_thread_signal(penv->thread, SIGUSR1);
3803 qemu_cpu_kick(penv);
3804 penv = (CPUState *)penv->next_cpu;
3808 static void tcg_init_vcpu(void *_env)
3810 CPUState *env = _env;
3811 /* share a single thread for all cpus with TCG */
3812 if (!tcg_cpu_thread) {
3813 env->thread = qemu_mallocz(sizeof(QemuThread));
3814 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3815 qemu_cond_init(env->halt_cond);
3816 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3817 while (env->created == 0)
3818 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3819 tcg_cpu_thread = env->thread;
3820 tcg_halt_cond = env->halt_cond;
3822 env->thread = tcg_cpu_thread;
3823 env->halt_cond = tcg_halt_cond;
3827 static void kvm_start_vcpu(CPUState *env)
3829 env->thread = qemu_mallocz(sizeof(QemuThread));
3830 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3831 qemu_cond_init(env->halt_cond);
3832 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3833 while (env->created == 0)
3834 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3837 void qemu_init_vcpu(void *_env)
3839 CPUState *env = _env;
3842 kvm_start_vcpu(env);
3845 env->nr_cores = smp_cores;
3846 env->nr_threads = smp_threads;
3849 void qemu_notify_event(void)
3851 qemu_event_increment();
3854 void vm_stop(int reason)
3857 qemu_thread_self(&me);
3859 if (!qemu_thread_equal(&me, &io_thread)) {
3860 qemu_system_vmstop_request(reason);
3862 * FIXME: should not return to device code in case
3863 * vm_stop() has been requested.
3865 if (cpu_single_env) {
3866 cpu_exit(cpu_single_env);
3867 cpu_single_env->stop = 1;
3878 static void host_main_loop_wait(int *timeout)
3884 /* XXX: need to suppress polling by better using win32 events */
3886 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3887 ret |= pe->func(pe->opaque);
3891 WaitObjects *w = &wait_objects;
3893 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3894 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3895 if (w->func[ret - WAIT_OBJECT_0])
3896 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3898 /* Check for additional signaled events */
3899 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3901 /* Check if event is signaled */
3902 ret2 = WaitForSingleObject(w->events[i], 0);
3903 if(ret2 == WAIT_OBJECT_0) {
3905 w->func[i](w->opaque[i]);
3906 } else if (ret2 == WAIT_TIMEOUT) {
3908 err = GetLastError();
3909 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3912 } else if (ret == WAIT_TIMEOUT) {
3914 err = GetLastError();
3915 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3922 static void host_main_loop_wait(int *timeout)
3927 void main_loop_wait(int timeout)
3929 IOHandlerRecord *ioh;
3930 fd_set rfds, wfds, xfds;
3934 qemu_bh_update_timeout(&timeout);
3936 host_main_loop_wait(&timeout);
3938 /* poll any events */
3939 /* XXX: separate device handlers from system ones */
3944 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3948 (!ioh->fd_read_poll ||
3949 ioh->fd_read_poll(ioh->opaque) != 0)) {
3950 FD_SET(ioh->fd, &rfds);
3954 if (ioh->fd_write) {
3955 FD_SET(ioh->fd, &wfds);
3961 tv.tv_sec = timeout / 1000;
3962 tv.tv_usec = (timeout % 1000) * 1000;
3964 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3966 qemu_mutex_unlock_iothread();
3967 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3968 qemu_mutex_lock_iothread();
3970 IOHandlerRecord **pioh;
3972 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3973 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3974 ioh->fd_read(ioh->opaque);
3976 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3977 ioh->fd_write(ioh->opaque);
3981 /* remove deleted IO handlers */
3982 pioh = &first_io_handler;
3993 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
3995 /* rearm timer, if not periodic */
3996 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3997 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3998 qemu_rearm_alarm_timer(alarm_timer);
4001 /* vm time timers */
4003 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4004 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4005 qemu_get_clock(vm_clock));
4008 /* real time timers */
4009 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4010 qemu_get_clock(rt_clock));
4012 /* Check bottom-halves last in case any of the earlier events triggered
4018 static int qemu_cpu_exec(CPUState *env)
4021 #ifdef CONFIG_PROFILER
4025 #ifdef CONFIG_PROFILER
4026 ti = profile_getclock();
4031 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4032 env->icount_decr.u16.low = 0;
4033 env->icount_extra = 0;
4034 count = qemu_next_deadline();
4035 count = (count + (1 << icount_time_shift) - 1)
4036 >> icount_time_shift;
4037 qemu_icount += count;
4038 decr = (count > 0xffff) ? 0xffff : count;
4040 env->icount_decr.u16.low = decr;
4041 env->icount_extra = count;
4043 ret = cpu_exec(env);
4044 #ifdef CONFIG_PROFILER
4045 qemu_time += profile_getclock() - ti;
4048 /* Fold pending instructions back into the
4049 instruction counter, and clear the interrupt flag. */
4050 qemu_icount -= (env->icount_decr.u16.low
4051 + env->icount_extra);
4052 env->icount_decr.u32 = 0;
4053 env->icount_extra = 0;
4058 static void tcg_cpu_exec(void)
4062 if (next_cpu == NULL)
4063 next_cpu = first_cpu;
4064 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4065 CPUState *env = cur_cpu = next_cpu;
4069 if (timer_alarm_pending) {
4070 timer_alarm_pending = 0;
4073 if (cpu_can_run(env))
4074 ret = qemu_cpu_exec(env);
4075 if (ret == EXCP_DEBUG) {
4076 gdb_set_stop_cpu(env);
4077 debug_requested = 1;
4083 static int cpu_has_work(CPUState *env)
4091 if (qemu_cpu_has_work(env))
4096 static int tcg_has_work(void)
4100 for (env = first_cpu; env != NULL; env = env->next_cpu)
4101 if (cpu_has_work(env))
4106 static int qemu_calculate_timeout(void)
4108 #ifndef CONFIG_IOTHREAD
4113 else if (tcg_has_work())
4115 else if (!use_icount)
4118 /* XXX: use timeout computed from timers */
4121 /* Advance virtual time to the next event. */
4122 if (use_icount == 1) {
4123 /* When not using an adaptive execution frequency
4124 we tend to get badly out of sync with real time,
4125 so just delay for a reasonable amount of time. */
4128 delta = cpu_get_icount() - cpu_get_clock();
4131 /* If virtual time is ahead of real time then just
4133 timeout = (delta / 1000000) + 1;
4135 /* Wait for either IO to occur or the next
4137 add = qemu_next_deadline();
4138 /* We advance the timer before checking for IO.
4139 Limit the amount we advance so that early IO
4140 activity won't get the guest too far ahead. */
4144 add = (add + (1 << icount_time_shift) - 1)
4145 >> icount_time_shift;
4147 timeout = delta / 1000000;
4154 #else /* CONFIG_IOTHREAD */
4159 static int vm_can_run(void)
4161 if (powerdown_requested)
4163 if (reset_requested)
4165 if (shutdown_requested)
4167 if (debug_requested)
4172 qemu_irq qemu_system_powerdown;
4174 static void main_loop(void)
4178 #ifdef CONFIG_IOTHREAD
4179 qemu_system_ready = 1;
4180 qemu_cond_broadcast(&qemu_system_cond);
4185 #ifdef CONFIG_PROFILER
4188 #ifndef CONFIG_IOTHREAD
4191 #ifdef CONFIG_PROFILER
4192 ti = profile_getclock();
4194 main_loop_wait(qemu_calculate_timeout());
4195 #ifdef CONFIG_PROFILER
4196 dev_time += profile_getclock() - ti;
4198 } while (vm_can_run());
4200 if (qemu_debug_requested())
4201 vm_stop(EXCP_DEBUG);
4202 if (qemu_shutdown_requested()) {
4209 if (qemu_reset_requested()) {
4211 qemu_system_reset();
4214 if (qemu_powerdown_requested()) {
4215 qemu_irq_raise(qemu_system_powerdown);
4217 if ((r = qemu_vmstop_requested()))
4223 static void version(void)
4225 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4228 static void help(int exitcode)
4231 printf("usage: %s [options] [disk_image]\n"
4233 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4235 #define DEF(option, opt_arg, opt_enum, opt_help) \
4237 #define DEFHEADING(text) stringify(text) "\n"
4238 #include "qemu-options.h"
4243 "During emulation, the following keys are useful:\n"
4244 "ctrl-alt-f toggle full screen\n"
4245 "ctrl-alt-n switch to virtual console 'n'\n"
4246 "ctrl-alt toggle mouse and keyboard grab\n"
4248 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4253 DEFAULT_NETWORK_SCRIPT,
4254 DEFAULT_NETWORK_DOWN_SCRIPT,
4256 DEFAULT_GDBSTUB_PORT,
4261 #define HAS_ARG 0x0001
4264 #define DEF(option, opt_arg, opt_enum, opt_help) \
4266 #define DEFHEADING(text)
4267 #include "qemu-options.h"
4273 typedef struct QEMUOption {
4279 static const QEMUOption qemu_options[] = {
4280 { "h", 0, QEMU_OPTION_h },
4281 #define DEF(option, opt_arg, opt_enum, opt_help) \
4282 { option, opt_arg, opt_enum },
4283 #define DEFHEADING(text)
4284 #include "qemu-options.h"
4292 struct soundhw soundhw[] = {
4293 #ifdef HAS_AUDIO_CHOICE
4294 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4300 { .init_isa = pcspk_audio_init }
4307 "Creative Sound Blaster 16",
4310 { .init_isa = SB16_init }
4314 #ifdef CONFIG_CS4231A
4320 { .init_isa = cs4231a_init }
4328 "Yamaha YMF262 (OPL3)",
4330 "Yamaha YM3812 (OPL2)",
4334 { .init_isa = Adlib_init }
4341 "Gravis Ultrasound GF1",
4344 { .init_isa = GUS_init }
4351 "Intel 82801AA AC97 Audio",
4354 { .init_pci = ac97_init }
4358 #ifdef CONFIG_ES1370
4361 "ENSONIQ AudioPCI ES1370",
4364 { .init_pci = es1370_init }
4368 #endif /* HAS_AUDIO_CHOICE */
4370 { NULL, NULL, 0, 0, { NULL } }
4373 static void select_soundhw (const char *optarg)
4377 if (*optarg == '?') {
4380 printf ("Valid sound card names (comma separated):\n");
4381 for (c = soundhw; c->name; ++c) {
4382 printf ("%-11s %s\n", c->name, c->descr);
4384 printf ("\n-soundhw all will enable all of the above\n");
4385 exit (*optarg != '?');
4393 if (!strcmp (optarg, "all")) {
4394 for (c = soundhw; c->name; ++c) {
4402 e = strchr (p, ',');
4403 l = !e ? strlen (p) : (size_t) (e - p);
4405 for (c = soundhw; c->name; ++c) {
4406 if (!strncmp (c->name, p, l) && !c->name[l]) {
4415 "Unknown sound card name (too big to show)\n");
4418 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4423 p += l + (e != NULL);
4427 goto show_valid_cards;
4432 static void select_vgahw (const char *p)
4436 vga_interface_type = VGA_NONE;
4437 if (strstart(p, "std", &opts)) {
4438 vga_interface_type = VGA_STD;
4439 } else if (strstart(p, "cirrus", &opts)) {
4440 vga_interface_type = VGA_CIRRUS;
4441 } else if (strstart(p, "vmware", &opts)) {
4442 vga_interface_type = VGA_VMWARE;
4443 } else if (strstart(p, "xenfb", &opts)) {
4444 vga_interface_type = VGA_XENFB;
4445 } else if (!strstart(p, "none", &opts)) {
4447 fprintf(stderr, "Unknown vga type: %s\n", p);
4451 const char *nextopt;
4453 if (strstart(opts, ",retrace=", &nextopt)) {
4455 if (strstart(opts, "dumb", &nextopt))
4456 vga_retrace_method = VGA_RETRACE_DUMB;
4457 else if (strstart(opts, "precise", &nextopt))
4458 vga_retrace_method = VGA_RETRACE_PRECISE;
4459 else goto invalid_vga;
4460 } else goto invalid_vga;
4466 static int balloon_parse(const char *arg)
4470 if (strcmp(arg, "none") == 0) {
4474 if (!strncmp(arg, "virtio", 6)) {
4475 if (arg[6] == ',') {
4476 /* have params -> parse them */
4477 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4481 /* create empty opts */
4482 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4484 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4493 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4495 exit(STATUS_CONTROL_C_EXIT);
4500 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4504 if(strlen(str) != 36)
4507 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4508 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4509 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4515 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4521 #define MAX_NET_CLIENTS 32
4525 static void termsig_handler(int signal)
4527 qemu_system_shutdown_request();
4530 static void sigchld_handler(int signal)
4532 waitpid(-1, NULL, WNOHANG);
4535 static void sighandler_setup(void)
4537 struct sigaction act;
4539 memset(&act, 0, sizeof(act));
4540 act.sa_handler = termsig_handler;
4541 sigaction(SIGINT, &act, NULL);
4542 sigaction(SIGHUP, &act, NULL);
4543 sigaction(SIGTERM, &act, NULL);
4545 act.sa_handler = sigchld_handler;
4546 act.sa_flags = SA_NOCLDSTOP;
4547 sigaction(SIGCHLD, &act, NULL);
4553 /* Look for support files in the same directory as the executable. */
4554 static char *find_datadir(const char *argv0)
4560 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4567 while (p != buf && *p != '\\')
4570 if (access(buf, R_OK) == 0) {
4571 return qemu_strdup(buf);
4577 /* Find a likely location for support files using the location of the binary.
4578 For installed binaries this will be "$bindir/../share/qemu". When
4579 running from the build tree this will be "$bindir/../pc-bios". */
4580 #define SHARE_SUFFIX "/share/qemu"
4581 #define BUILD_SUFFIX "/pc-bios"
4582 static char *find_datadir(const char *argv0)
4590 #if defined(__linux__)
4593 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4599 #elif defined(__FreeBSD__)
4602 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4609 /* If we don't have any way of figuring out the actual executable
4610 location then try argv[0]. */
4612 p = realpath(argv0, buf);
4620 max_len = strlen(dir) +
4621 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4622 res = qemu_mallocz(max_len);
4623 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4624 if (access(res, R_OK)) {
4625 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4626 if (access(res, R_OK)) {
4638 char *qemu_find_file(int type, const char *name)
4644 /* If name contains path separators then try it as a straight path. */
4645 if ((strchr(name, '/') || strchr(name, '\\'))
4646 && access(name, R_OK) == 0) {
4647 return qemu_strdup(name);
4650 case QEMU_FILE_TYPE_BIOS:
4653 case QEMU_FILE_TYPE_KEYMAP:
4654 subdir = "keymaps/";
4659 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4660 buf = qemu_mallocz(len);
4661 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4662 if (access(buf, R_OK)) {
4669 static int device_init_func(QemuOpts *opts, void *opaque)
4673 dev = qdev_device_add(opts);
4679 struct device_config {
4681 DEV_USB, /* -usbdevice */
4684 const char *cmdline;
4685 TAILQ_ENTRY(device_config) next;
4687 TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4689 static void add_device_config(int type, const char *cmdline)
4691 struct device_config *conf;
4693 conf = qemu_mallocz(sizeof(*conf));
4695 conf->cmdline = cmdline;
4696 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4699 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4701 struct device_config *conf;
4704 TAILQ_FOREACH(conf, &device_configs, next) {
4705 if (conf->type != type)
4707 rc = func(conf->cmdline);
4714 int main(int argc, char **argv, char **envp)
4716 const char *gdbstub_dev = NULL;
4717 uint32_t boot_devices_bitmap = 0;
4719 int snapshot, linux_boot, net_boot;
4720 const char *initrd_filename;
4721 const char *kernel_filename, *kernel_cmdline;
4722 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4724 DisplayChangeListener *dcl;
4725 int cyls, heads, secs, translation;
4726 const char *net_clients[MAX_NET_CLIENTS];
4728 QemuOpts *hda_opts = NULL, *opts;
4730 const char *r, *optarg;
4731 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4732 const char *monitor_devices[MAX_MONITOR_DEVICES];
4733 int monitor_device_index;
4734 const char *serial_devices[MAX_SERIAL_PORTS];
4735 int serial_device_index;
4736 const char *parallel_devices[MAX_PARALLEL_PORTS];
4737 int parallel_device_index;
4738 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4739 int virtio_console_index;
4740 const char *loadvm = NULL;
4741 QEMUMachine *machine;
4742 const char *cpu_model;
4747 const char *pid_file = NULL;
4748 const char *incoming = NULL;
4751 struct passwd *pwd = NULL;
4752 const char *chroot_dir = NULL;
4753 const char *run_as = NULL;
4756 int show_vnc_port = 0;
4758 qemu_errors_to_file(stderr);
4759 qemu_cache_utils_init(envp);
4761 LIST_INIT (&vm_change_state_head);
4764 struct sigaction act;
4765 sigfillset(&act.sa_mask);
4767 act.sa_handler = SIG_IGN;
4768 sigaction(SIGPIPE, &act, NULL);
4771 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4772 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4773 QEMU to run on a single CPU */
4778 h = GetCurrentProcess();
4779 if (GetProcessAffinityMask(h, &mask, &smask)) {
4780 for(i = 0; i < 32; i++) {
4781 if (mask & (1 << i))
4786 SetProcessAffinityMask(h, mask);
4792 module_call_init(MODULE_INIT_MACHINE);
4793 machine = find_default_machine();
4795 initrd_filename = NULL;
4798 kernel_filename = NULL;
4799 kernel_cmdline = "";
4800 cyls = heads = secs = 0;
4801 translation = BIOS_ATA_TRANSLATION_AUTO;
4803 serial_devices[0] = "vc:80Cx24C";
4804 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4805 serial_devices[i] = NULL;
4806 serial_device_index = 0;
4808 parallel_devices[0] = "vc:80Cx24C";
4809 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4810 parallel_devices[i] = NULL;
4811 parallel_device_index = 0;
4813 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4814 virtio_consoles[i] = NULL;
4815 virtio_console_index = 0;
4817 monitor_devices[0] = "vc:80Cx24C";
4818 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4819 monitor_devices[i] = NULL;
4821 monitor_device_index = 0;
4823 for (i = 0; i < MAX_NODES; i++) {
4825 node_cpumask[i] = 0;
4841 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4843 const QEMUOption *popt;
4846 /* Treat --foo the same as -foo. */
4849 popt = qemu_options;
4852 fprintf(stderr, "%s: invalid option -- '%s'\n",
4856 if (!strcmp(popt->name, r + 1))
4860 if (popt->flags & HAS_ARG) {
4861 if (optind >= argc) {
4862 fprintf(stderr, "%s: option '%s' requires an argument\n",
4866 optarg = argv[optind++];
4871 switch(popt->index) {
4873 machine = find_machine(optarg);
4876 printf("Supported machines are:\n");
4877 for(m = first_machine; m != NULL; m = m->next) {
4879 printf("%-10s %s (alias of %s)\n",
4880 m->alias, m->desc, m->name);
4881 printf("%-10s %s%s\n",
4883 m->is_default ? " (default)" : "");
4885 exit(*optarg != '?');
4888 case QEMU_OPTION_cpu:
4889 /* hw initialization will check this */
4890 if (*optarg == '?') {
4891 /* XXX: implement xxx_cpu_list for targets that still miss it */
4892 #if defined(cpu_list)
4893 cpu_list(stdout, &fprintf);
4900 case QEMU_OPTION_initrd:
4901 initrd_filename = optarg;
4903 case QEMU_OPTION_hda:
4905 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4907 hda_opts = drive_add(optarg, HD_ALIAS
4908 ",cyls=%d,heads=%d,secs=%d%s",
4909 0, cyls, heads, secs,
4910 translation == BIOS_ATA_TRANSLATION_LBA ?
4912 translation == BIOS_ATA_TRANSLATION_NONE ?
4913 ",trans=none" : "");
4915 case QEMU_OPTION_hdb:
4916 case QEMU_OPTION_hdc:
4917 case QEMU_OPTION_hdd:
4918 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4920 case QEMU_OPTION_drive:
4921 drive_add(NULL, "%s", optarg);
4923 case QEMU_OPTION_set:
4924 if (qemu_set_option(optarg) != 0)
4927 case QEMU_OPTION_mtdblock:
4928 drive_add(optarg, MTD_ALIAS);
4930 case QEMU_OPTION_sd:
4931 drive_add(optarg, SD_ALIAS);
4933 case QEMU_OPTION_pflash:
4934 drive_add(optarg, PFLASH_ALIAS);
4936 case QEMU_OPTION_snapshot:
4939 case QEMU_OPTION_hdachs:
4943 cyls = strtol(p, (char **)&p, 0);
4944 if (cyls < 1 || cyls > 16383)
4949 heads = strtol(p, (char **)&p, 0);
4950 if (heads < 1 || heads > 16)
4955 secs = strtol(p, (char **)&p, 0);
4956 if (secs < 1 || secs > 63)
4960 if (!strcmp(p, "none"))
4961 translation = BIOS_ATA_TRANSLATION_NONE;
4962 else if (!strcmp(p, "lba"))
4963 translation = BIOS_ATA_TRANSLATION_LBA;
4964 else if (!strcmp(p, "auto"))
4965 translation = BIOS_ATA_TRANSLATION_AUTO;
4968 } else if (*p != '\0') {
4970 fprintf(stderr, "qemu: invalid physical CHS format\n");
4973 if (hda_opts != NULL) {
4975 snprintf(num, sizeof(num), "%d", cyls);
4976 qemu_opt_set(hda_opts, "cyls", num);
4977 snprintf(num, sizeof(num), "%d", heads);
4978 qemu_opt_set(hda_opts, "heads", num);
4979 snprintf(num, sizeof(num), "%d", secs);
4980 qemu_opt_set(hda_opts, "secs", num);
4981 if (translation == BIOS_ATA_TRANSLATION_LBA)
4982 qemu_opt_set(hda_opts, "trans", "lba");
4983 if (translation == BIOS_ATA_TRANSLATION_NONE)
4984 qemu_opt_set(hda_opts, "trans", "none");
4988 case QEMU_OPTION_numa:
4989 if (nb_numa_nodes >= MAX_NODES) {
4990 fprintf(stderr, "qemu: too many NUMA nodes\n");
4995 case QEMU_OPTION_nographic:
4996 display_type = DT_NOGRAPHIC;
4998 #ifdef CONFIG_CURSES
4999 case QEMU_OPTION_curses:
5000 display_type = DT_CURSES;
5003 case QEMU_OPTION_portrait:
5006 case QEMU_OPTION_kernel:
5007 kernel_filename = optarg;
5009 case QEMU_OPTION_append:
5010 kernel_cmdline = optarg;
5012 case QEMU_OPTION_cdrom:
5013 drive_add(optarg, CDROM_ALIAS);
5015 case QEMU_OPTION_boot:
5017 static const char * const params[] = {
5018 "order", "once", "menu", NULL
5020 char buf[sizeof(boot_devices)];
5021 char *standard_boot_devices;
5024 if (!strchr(optarg, '=')) {
5026 pstrcpy(buf, sizeof(buf), optarg);
5027 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5029 "qemu: unknown boot parameter '%s' in '%s'\n",
5035 get_param_value(buf, sizeof(buf), "order", optarg)) {
5036 boot_devices_bitmap = parse_bootdevices(buf);
5037 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5040 if (get_param_value(buf, sizeof(buf),
5042 boot_devices_bitmap |= parse_bootdevices(buf);
5043 standard_boot_devices = qemu_strdup(boot_devices);
5044 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5045 qemu_register_reset(restore_boot_devices,
5046 standard_boot_devices);
5048 if (get_param_value(buf, sizeof(buf),
5050 if (!strcmp(buf, "on")) {
5052 } else if (!strcmp(buf, "off")) {
5056 "qemu: invalid option value '%s'\n",
5064 case QEMU_OPTION_fda:
5065 case QEMU_OPTION_fdb:
5066 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5069 case QEMU_OPTION_no_fd_bootchk:
5073 case QEMU_OPTION_net:
5074 if (nb_net_clients >= MAX_NET_CLIENTS) {
5075 fprintf(stderr, "qemu: too many network clients\n");
5078 net_clients[nb_net_clients] = optarg;
5082 case QEMU_OPTION_tftp:
5083 legacy_tftp_prefix = optarg;
5085 case QEMU_OPTION_bootp:
5086 legacy_bootp_filename = optarg;
5089 case QEMU_OPTION_smb:
5090 net_slirp_smb(optarg);
5093 case QEMU_OPTION_redir:
5094 net_slirp_redir(optarg);
5097 case QEMU_OPTION_bt:
5098 add_device_config(DEV_BT, optarg);
5101 case QEMU_OPTION_audio_help:
5105 case QEMU_OPTION_soundhw:
5106 select_soundhw (optarg);
5112 case QEMU_OPTION_version:
5116 case QEMU_OPTION_m: {
5120 value = strtoul(optarg, &ptr, 10);
5122 case 0: case 'M': case 'm':
5129 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5133 /* On 32-bit hosts, QEMU is limited by virtual address space */
5134 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
5135 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5138 if (value != (uint64_t)(ram_addr_t)value) {
5139 fprintf(stderr, "qemu: ram size too large\n");
5148 const CPULogItem *item;
5150 mask = cpu_str_to_log_mask(optarg);
5152 printf("Log items (comma separated):\n");
5153 for(item = cpu_log_items; item->mask != 0; item++) {
5154 printf("%-10s %s\n", item->name, item->help);
5162 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5164 case QEMU_OPTION_gdb:
5165 gdbstub_dev = optarg;
5170 case QEMU_OPTION_bios:
5173 case QEMU_OPTION_singlestep:
5181 keyboard_layout = optarg;
5184 case QEMU_OPTION_localtime:
5187 case QEMU_OPTION_vga:
5188 select_vgahw (optarg);
5190 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5196 w = strtol(p, (char **)&p, 10);
5199 fprintf(stderr, "qemu: invalid resolution or depth\n");
5205 h = strtol(p, (char **)&p, 10);
5210 depth = strtol(p, (char **)&p, 10);
5211 if (depth != 8 && depth != 15 && depth != 16 &&
5212 depth != 24 && depth != 32)
5214 } else if (*p == '\0') {
5215 depth = graphic_depth;
5222 graphic_depth = depth;
5226 case QEMU_OPTION_echr:
5229 term_escape_char = strtol(optarg, &r, 0);
5231 printf("Bad argument to echr\n");
5234 case QEMU_OPTION_monitor:
5235 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5236 fprintf(stderr, "qemu: too many monitor devices\n");
5239 monitor_devices[monitor_device_index] = optarg;
5240 monitor_device_index++;
5242 case QEMU_OPTION_chardev:
5243 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5245 fprintf(stderr, "parse error: %s\n", optarg);
5248 if (NULL == qemu_chr_open_opts(opts, NULL)) {
5252 case QEMU_OPTION_serial:
5253 if (serial_device_index >= MAX_SERIAL_PORTS) {
5254 fprintf(stderr, "qemu: too many serial ports\n");
5257 serial_devices[serial_device_index] = optarg;
5258 serial_device_index++;
5260 case QEMU_OPTION_watchdog:
5263 "qemu: only one watchdog option may be given\n");
5268 case QEMU_OPTION_watchdog_action:
5269 if (select_watchdog_action(optarg) == -1) {
5270 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5274 case QEMU_OPTION_virtiocon:
5275 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5276 fprintf(stderr, "qemu: too many virtio consoles\n");
5279 virtio_consoles[virtio_console_index] = optarg;
5280 virtio_console_index++;
5282 case QEMU_OPTION_parallel:
5283 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5284 fprintf(stderr, "qemu: too many parallel ports\n");
5287 parallel_devices[parallel_device_index] = optarg;
5288 parallel_device_index++;
5290 case QEMU_OPTION_loadvm:
5293 case QEMU_OPTION_full_screen:
5297 case QEMU_OPTION_no_frame:
5300 case QEMU_OPTION_alt_grab:
5303 case QEMU_OPTION_no_quit:
5306 case QEMU_OPTION_sdl:
5307 display_type = DT_SDL;
5310 case QEMU_OPTION_pidfile:
5314 case QEMU_OPTION_win2k_hack:
5315 win2k_install_hack = 1;
5317 case QEMU_OPTION_rtc_td_hack:
5320 case QEMU_OPTION_acpitable:
5321 if(acpi_table_add(optarg) < 0) {
5322 fprintf(stderr, "Wrong acpi table provided\n");
5326 case QEMU_OPTION_smbios:
5327 if(smbios_entry_add(optarg) < 0) {
5328 fprintf(stderr, "Wrong smbios provided\n");
5334 case QEMU_OPTION_enable_kvm:
5338 case QEMU_OPTION_usb:
5341 case QEMU_OPTION_usbdevice:
5343 add_device_config(DEV_USB, optarg);
5345 case QEMU_OPTION_device:
5346 opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver");
5348 fprintf(stderr, "parse error: %s\n", optarg);
5352 case QEMU_OPTION_smp:
5355 fprintf(stderr, "Invalid number of CPUs\n");
5358 if (max_cpus < smp_cpus) {
5359 fprintf(stderr, "maxcpus must be equal to or greater than "
5363 if (max_cpus > 255) {
5364 fprintf(stderr, "Unsupported number of maxcpus\n");
5368 case QEMU_OPTION_vnc:
5369 display_type = DT_VNC;
5370 vnc_display = optarg;
5373 case QEMU_OPTION_no_acpi:
5376 case QEMU_OPTION_no_hpet:
5379 case QEMU_OPTION_balloon:
5380 if (balloon_parse(optarg) < 0) {
5381 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5386 case QEMU_OPTION_no_reboot:
5389 case QEMU_OPTION_no_shutdown:
5392 case QEMU_OPTION_show_cursor:
5395 case QEMU_OPTION_uuid:
5396 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5397 fprintf(stderr, "Fail to parse UUID string."
5398 " Wrong format.\n");
5403 case QEMU_OPTION_daemonize:
5407 case QEMU_OPTION_option_rom:
5408 if (nb_option_roms >= MAX_OPTION_ROMS) {
5409 fprintf(stderr, "Too many option ROMs\n");
5412 option_rom[nb_option_roms] = optarg;
5415 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5416 case QEMU_OPTION_semihosting:
5417 semihosting_enabled = 1;
5420 case QEMU_OPTION_name:
5421 qemu_name = qemu_strdup(optarg);
5423 char *p = strchr(qemu_name, ',');
5426 if (strncmp(p, "process=", 8)) {
5427 fprintf(stderr, "Unknown subargument %s to -name", p);
5435 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5436 case QEMU_OPTION_prom_env:
5437 if (nb_prom_envs >= MAX_PROM_ENVS) {
5438 fprintf(stderr, "Too many prom variables\n");
5441 prom_envs[nb_prom_envs] = optarg;
5446 case QEMU_OPTION_old_param:
5450 case QEMU_OPTION_clock:
5451 configure_alarms(optarg);
5453 case QEMU_OPTION_startdate:
5456 time_t rtc_start_date;
5457 if (!strcmp(optarg, "now")) {
5458 rtc_date_offset = -1;
5460 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5468 } else if (sscanf(optarg, "%d-%d-%d",
5471 &tm.tm_mday) == 3) {
5480 rtc_start_date = mktimegm(&tm);
5481 if (rtc_start_date == -1) {
5483 fprintf(stderr, "Invalid date format. Valid format are:\n"
5484 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5487 rtc_date_offset = time(NULL) - rtc_start_date;
5491 case QEMU_OPTION_tb_size:
5492 tb_size = strtol(optarg, NULL, 0);
5496 case QEMU_OPTION_icount:
5498 if (strcmp(optarg, "auto") == 0) {
5499 icount_time_shift = -1;
5501 icount_time_shift = strtol(optarg, NULL, 0);
5504 case QEMU_OPTION_incoming:
5508 case QEMU_OPTION_chroot:
5509 chroot_dir = optarg;
5511 case QEMU_OPTION_runas:
5516 case QEMU_OPTION_xen_domid:
5517 xen_domid = atoi(optarg);
5519 case QEMU_OPTION_xen_create:
5520 xen_mode = XEN_CREATE;
5522 case QEMU_OPTION_xen_attach:
5523 xen_mode = XEN_ATTACH;
5530 if (kvm_enabled()) {
5533 ret = kvm_init(smp_cpus);
5535 fprintf(stderr, "failed to initialize KVM\n");
5540 /* If no data_dir is specified then try to find it relative to the
5543 data_dir = find_datadir(argv[0]);
5545 /* If all else fails use the install patch specified when building. */
5547 data_dir = CONFIG_QEMU_SHAREDIR;
5551 * Default to max_cpus = smp_cpus, in case the user doesn't
5552 * specify a max_cpus value.
5555 max_cpus = smp_cpus;
5557 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5558 if (smp_cpus > machine->max_cpus) {
5559 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5560 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5565 if (display_type == DT_NOGRAPHIC) {
5566 if (serial_device_index == 0)
5567 serial_devices[0] = "stdio";
5568 if (parallel_device_index == 0)
5569 parallel_devices[0] = "null";
5570 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5571 monitor_devices[0] = "stdio";
5579 if (pipe(fds) == -1)
5590 len = read(fds[0], &status, 1);
5591 if (len == -1 && (errno == EINTR))
5596 else if (status == 1) {
5597 fprintf(stderr, "Could not acquire pidfile\n");
5614 signal(SIGTSTP, SIG_IGN);
5615 signal(SIGTTOU, SIG_IGN);
5616 signal(SIGTTIN, SIG_IGN);
5619 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5622 write(fds[1], &status, 1);
5624 fprintf(stderr, "Could not acquire pid file\n");
5629 if (qemu_init_main_loop()) {
5630 fprintf(stderr, "qemu_init_main_loop failed\n");
5633 linux_boot = (kernel_filename != NULL);
5635 if (!linux_boot && *kernel_cmdline != '\0') {
5636 fprintf(stderr, "-append only allowed with -kernel option\n");
5640 if (!linux_boot && initrd_filename != NULL) {
5641 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5646 /* Win32 doesn't support line-buffering and requires size >= 2 */
5647 setvbuf(stdout, NULL, _IOLBF, 0);
5651 if (init_timer_alarm() < 0) {
5652 fprintf(stderr, "could not initialize alarm timer\n");
5655 if (use_icount && icount_time_shift < 0) {
5657 /* 125MIPS seems a reasonable initial guess at the guest speed.
5658 It will be corrected fairly quickly anyway. */
5659 icount_time_shift = 3;
5660 init_icount_adjust();
5667 /* init network clients */
5668 if (nb_net_clients == 0) {
5669 /* if no clients, we use a default config */
5670 net_clients[nb_net_clients++] = "nic";
5672 net_clients[nb_net_clients++] = "user";
5676 for(i = 0;i < nb_net_clients; i++) {
5677 if (net_client_parse(net_clients[i]) < 0)
5681 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5682 net_set_boot_mask(net_boot);
5686 /* init the bluetooth world */
5687 if (foreach_device_config(DEV_BT, bt_parse))
5690 /* init the memory */
5692 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5694 /* init the dynamic translator */
5695 cpu_exec_init_all(tb_size * 1024 * 1024);
5699 /* we always create the cdrom drive, even if no disk is there */
5700 drive_add(NULL, CDROM_ALIAS);
5702 /* we always create at least one floppy */
5703 drive_add(NULL, FD_ALIAS, 0);
5705 /* we always create one sd slot, even if no card is in it */
5706 drive_add(NULL, SD_ALIAS);
5708 /* open the virtual block devices */
5710 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5711 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5714 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
5715 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5717 /* Maintain compatibility with multiple stdio monitors */
5718 if (!strcmp(monitor_devices[0],"stdio")) {
5719 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5720 const char *devname = serial_devices[i];
5721 if (devname && !strcmp(devname,"mon:stdio")) {
5722 monitor_devices[0] = NULL;
5724 } else if (devname && !strcmp(devname,"stdio")) {
5725 monitor_devices[0] = NULL;
5726 serial_devices[i] = "mon:stdio";
5732 if (nb_numa_nodes > 0) {
5735 if (nb_numa_nodes > smp_cpus) {
5736 nb_numa_nodes = smp_cpus;
5739 /* If no memory size if given for any node, assume the default case
5740 * and distribute the available memory equally across all nodes
5742 for (i = 0; i < nb_numa_nodes; i++) {
5743 if (node_mem[i] != 0)
5746 if (i == nb_numa_nodes) {
5747 uint64_t usedmem = 0;
5749 /* On Linux, the each node's border has to be 8MB aligned,
5750 * the final node gets the rest.
5752 for (i = 0; i < nb_numa_nodes - 1; i++) {
5753 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5754 usedmem += node_mem[i];
5756 node_mem[i] = ram_size - usedmem;
5759 for (i = 0; i < nb_numa_nodes; i++) {
5760 if (node_cpumask[i] != 0)
5763 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5764 * must cope with this anyway, because there are BIOSes out there in
5765 * real machines which also use this scheme.
5767 if (i == nb_numa_nodes) {
5768 for (i = 0; i < smp_cpus; i++) {
5769 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5774 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5775 const char *devname = monitor_devices[i];
5776 if (devname && strcmp(devname, "none")) {
5779 snprintf(label, sizeof(label), "monitor");
5781 snprintf(label, sizeof(label), "monitor%d", i);
5783 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5784 if (!monitor_hds[i]) {
5785 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5792 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5793 const char *devname = serial_devices[i];
5794 if (devname && strcmp(devname, "none")) {
5796 snprintf(label, sizeof(label), "serial%d", i);
5797 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5798 if (!serial_hds[i]) {
5799 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5806 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5807 const char *devname = parallel_devices[i];
5808 if (devname && strcmp(devname, "none")) {
5810 snprintf(label, sizeof(label), "parallel%d", i);
5811 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5812 if (!parallel_hds[i]) {
5813 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5820 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5821 const char *devname = virtio_consoles[i];
5822 if (devname && strcmp(devname, "none")) {
5824 snprintf(label, sizeof(label), "virtcon%d", i);
5825 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5826 if (!virtcon_hds[i]) {
5827 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5834 module_call_init(MODULE_INIT_DEVICE);
5837 i = select_watchdog(watchdog);
5839 exit (i == 1 ? 1 : 0);
5842 if (machine->compat_props) {
5843 qdev_prop_register_compat(machine->compat_props);
5845 machine->init(ram_size, boot_devices,
5846 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5850 /* must be after terminal init, SDL library changes signal handlers */
5854 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5855 for (i = 0; i < nb_numa_nodes; i++) {
5856 if (node_cpumask[i] & (1 << env->cpu_index)) {
5862 current_machine = machine;
5864 /* init USB devices */
5866 foreach_device_config(DEV_USB, usb_parse);
5869 /* init generic devices */
5870 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5874 dumb_display_init();
5875 /* just use the first displaystate for the moment */
5878 if (display_type == DT_DEFAULT) {
5879 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5880 display_type = DT_SDL;
5882 display_type = DT_VNC;
5883 vnc_display = "localhost:0,to=99";
5889 switch (display_type) {
5892 #if defined(CONFIG_CURSES)
5894 curses_display_init(ds, full_screen);
5897 #if defined(CONFIG_SDL)
5899 sdl_display_init(ds, full_screen, no_frame);
5901 #elif defined(CONFIG_COCOA)
5903 cocoa_display_init(ds, full_screen);
5907 vnc_display_init(ds);
5908 if (vnc_display_open(ds, vnc_display) < 0)
5911 if (show_vnc_port) {
5912 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5920 dcl = ds->listeners;
5921 while (dcl != NULL) {
5922 if (dcl->dpy_refresh != NULL) {
5923 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5924 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5929 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5930 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5931 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5934 text_consoles_set_display(display_state);
5935 qemu_chr_initial_reset();
5937 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5938 if (monitor_devices[i] && monitor_hds[i]) {
5939 monitor_init(monitor_hds[i],
5940 MONITOR_USE_READLINE |
5941 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
5945 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5946 const char *devname = serial_devices[i];
5947 if (devname && strcmp(devname, "none")) {
5948 if (strstart(devname, "vc", 0))
5949 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
5953 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5954 const char *devname = parallel_devices[i];
5955 if (devname && strcmp(devname, "none")) {
5956 if (strstart(devname, "vc", 0))
5957 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
5961 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5962 const char *devname = virtio_consoles[i];
5963 if (virtcon_hds[i] && devname) {
5964 if (strstart(devname, "vc", 0))
5965 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
5969 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5970 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5976 if (load_vmstate(cur_mon, loadvm) < 0) {
5982 qemu_start_incoming_migration(incoming);
5983 } else if (autostart) {
5993 len = write(fds[1], &status, 1);
5994 if (len == -1 && (errno == EINTR))
6001 TFR(fd = open("/dev/null", O_RDWR));
6007 pwd = getpwnam(run_as);
6009 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6015 if (chroot(chroot_dir) < 0) {
6016 fprintf(stderr, "chroot failed\n");
6023 if (setgid(pwd->pw_gid) < 0) {
6024 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6027 if (setuid(pwd->pw_uid) < 0) {
6028 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6031 if (setuid(0) != -1) {
6032 fprintf(stderr, "Dropping privileges failed\n");