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 static const char *data_dir;
177 const char *bios_name = NULL;
178 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
179 to store the VM snapshots */
180 struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives);
181 struct driveoptlist driveopts = TAILQ_HEAD_INITIALIZER(driveopts);
182 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
183 static DisplayState *display_state;
184 DisplayType display_type = DT_DEFAULT;
185 const char* keyboard_layout = NULL;
186 int64_t ticks_per_sec;
189 NICInfo nd_table[MAX_NICS];
192 static int rtc_utc = 1;
193 static int rtc_date_offset = -1; /* -1 means no change */
194 int cirrus_vga_enabled = 1;
195 int std_vga_enabled = 0;
196 int vmsvga_enabled = 0;
197 int xenfb_enabled = 0;
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;
223 const char *vnc_display;
224 int acpi_enabled = 1;
226 int virtio_balloon = 1;
227 const char *virtio_balloon_devaddr;
232 int graphic_rotate = 0;
236 WatchdogTimerModel *watchdog = NULL;
237 int watchdog_action = WDT_RESET;
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)
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, int index)
484 QEMUPutMouseEntry *cursor;
487 if (!qemu_put_mouse_event_head) {
488 monitor_printf(mon, "No mouse devices connected\n");
492 cursor = qemu_put_mouse_event_head;
493 while (cursor != NULL && index != i) {
495 cursor = cursor->next;
499 qemu_put_mouse_event_current = cursor;
501 monitor_printf(mon, "Mouse at given index not found\n");
504 /* compute with 96 bit intermediate result: (a*b)/c */
505 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
510 #ifdef HOST_WORDS_BIGENDIAN
520 rl = (uint64_t)u.l.low * (uint64_t)b;
521 rh = (uint64_t)u.l.high * (uint64_t)b;
524 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
528 /***********************************************************/
529 /* real time host monotonic timer */
531 #define QEMU_TIMER_BASE 1000000000LL
535 static int64_t clock_freq;
537 static void init_get_clock(void)
541 ret = QueryPerformanceFrequency(&freq);
543 fprintf(stderr, "Could not calibrate ticks\n");
546 clock_freq = freq.QuadPart;
549 static int64_t get_clock(void)
552 QueryPerformanceCounter(&ti);
553 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
558 static int use_rt_clock;
560 static void init_get_clock(void)
563 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
564 || defined(__DragonFly__)
567 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
574 static int64_t get_clock(void)
576 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
577 || defined(__DragonFly__)
580 clock_gettime(CLOCK_MONOTONIC, &ts);
581 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
585 /* XXX: using gettimeofday leads to problems if the date
586 changes, so it should be avoided. */
588 gettimeofday(&tv, NULL);
589 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
594 /* Return the virtual CPU time, based on the instruction counter. */
595 static int64_t cpu_get_icount(void)
598 CPUState *env = cpu_single_env;;
599 icount = qemu_icount;
602 fprintf(stderr, "Bad clock read\n");
603 icount -= (env->icount_decr.u16.low + env->icount_extra);
605 return qemu_icount_bias + (icount << icount_time_shift);
608 /***********************************************************/
609 /* guest cycle counter */
611 static int64_t cpu_ticks_prev;
612 static int64_t cpu_ticks_offset;
613 static int64_t cpu_clock_offset;
614 static int cpu_ticks_enabled;
616 /* return the host CPU cycle counter and handle stop/restart */
617 int64_t cpu_get_ticks(void)
620 return cpu_get_icount();
622 if (!cpu_ticks_enabled) {
623 return cpu_ticks_offset;
626 ticks = cpu_get_real_ticks();
627 if (cpu_ticks_prev > ticks) {
628 /* Note: non increasing ticks may happen if the host uses
630 cpu_ticks_offset += cpu_ticks_prev - ticks;
632 cpu_ticks_prev = ticks;
633 return ticks + cpu_ticks_offset;
637 /* return the host CPU monotonic timer and handle stop/restart */
638 static int64_t cpu_get_clock(void)
641 if (!cpu_ticks_enabled) {
642 return cpu_clock_offset;
645 return ti + cpu_clock_offset;
649 /* enable cpu_get_ticks() */
650 void cpu_enable_ticks(void)
652 if (!cpu_ticks_enabled) {
653 cpu_ticks_offset -= cpu_get_real_ticks();
654 cpu_clock_offset -= get_clock();
655 cpu_ticks_enabled = 1;
659 /* disable cpu_get_ticks() : the clock is stopped. You must not call
660 cpu_get_ticks() after that. */
661 void cpu_disable_ticks(void)
663 if (cpu_ticks_enabled) {
664 cpu_ticks_offset = cpu_get_ticks();
665 cpu_clock_offset = cpu_get_clock();
666 cpu_ticks_enabled = 0;
670 /***********************************************************/
673 #define QEMU_TIMER_REALTIME 0
674 #define QEMU_TIMER_VIRTUAL 1
678 /* XXX: add frequency */
686 struct QEMUTimer *next;
689 struct qemu_alarm_timer {
693 int (*start)(struct qemu_alarm_timer *t);
694 void (*stop)(struct qemu_alarm_timer *t);
695 void (*rearm)(struct qemu_alarm_timer *t);
699 #define ALARM_FLAG_DYNTICKS 0x1
700 #define ALARM_FLAG_EXPIRED 0x2
702 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
704 return t && (t->flags & ALARM_FLAG_DYNTICKS);
707 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
709 if (!alarm_has_dynticks(t))
715 /* TODO: MIN_TIMER_REARM_US should be optimized */
716 #define MIN_TIMER_REARM_US 250
718 static struct qemu_alarm_timer *alarm_timer;
722 struct qemu_alarm_win32 {
725 } alarm_win32_data = {0, -1};
727 static int win32_start_timer(struct qemu_alarm_timer *t);
728 static void win32_stop_timer(struct qemu_alarm_timer *t);
729 static void win32_rearm_timer(struct qemu_alarm_timer *t);
733 static int unix_start_timer(struct qemu_alarm_timer *t);
734 static void unix_stop_timer(struct qemu_alarm_timer *t);
738 static int dynticks_start_timer(struct qemu_alarm_timer *t);
739 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
740 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
742 static int hpet_start_timer(struct qemu_alarm_timer *t);
743 static void hpet_stop_timer(struct qemu_alarm_timer *t);
745 static int rtc_start_timer(struct qemu_alarm_timer *t);
746 static void rtc_stop_timer(struct qemu_alarm_timer *t);
748 #endif /* __linux__ */
752 /* Correlation between real and virtual time is always going to be
753 fairly approximate, so ignore small variation.
754 When the guest is idle real and virtual time will be aligned in
756 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
758 static void icount_adjust(void)
763 static int64_t last_delta;
764 /* If the VM is not running, then do nothing. */
768 cur_time = cpu_get_clock();
769 cur_icount = qemu_get_clock(vm_clock);
770 delta = cur_icount - cur_time;
771 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
773 && last_delta + ICOUNT_WOBBLE < delta * 2
774 && icount_time_shift > 0) {
775 /* The guest is getting too far ahead. Slow time down. */
779 && last_delta - ICOUNT_WOBBLE > delta * 2
780 && icount_time_shift < MAX_ICOUNT_SHIFT) {
781 /* The guest is getting too far behind. Speed time up. */
785 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
788 static void icount_adjust_rt(void * opaque)
790 qemu_mod_timer(icount_rt_timer,
791 qemu_get_clock(rt_clock) + 1000);
795 static void icount_adjust_vm(void * opaque)
797 qemu_mod_timer(icount_vm_timer,
798 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
802 static void init_icount_adjust(void)
804 /* Have both realtime and virtual time triggers for speed adjustment.
805 The realtime trigger catches emulated time passing too slowly,
806 the virtual time trigger catches emulated time passing too fast.
807 Realtime triggers occur even when idle, so use them less frequently
809 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
810 qemu_mod_timer(icount_rt_timer,
811 qemu_get_clock(rt_clock) + 1000);
812 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
813 qemu_mod_timer(icount_vm_timer,
814 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
817 static struct qemu_alarm_timer alarm_timers[] = {
820 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
821 dynticks_stop_timer, dynticks_rearm_timer, NULL},
822 /* HPET - if available - is preferred */
823 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
824 /* ...otherwise try RTC */
825 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
827 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
829 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
830 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
831 {"win32", 0, win32_start_timer,
832 win32_stop_timer, NULL, &alarm_win32_data},
837 static void show_available_alarms(void)
841 printf("Available alarm timers, in order of precedence:\n");
842 for (i = 0; alarm_timers[i].name; i++)
843 printf("%s\n", alarm_timers[i].name);
846 static void configure_alarms(char const *opt)
850 int count = ARRAY_SIZE(alarm_timers) - 1;
853 struct qemu_alarm_timer tmp;
855 if (!strcmp(opt, "?")) {
856 show_available_alarms();
862 /* Reorder the array */
863 name = strtok(arg, ",");
865 for (i = 0; i < count && alarm_timers[i].name; i++) {
866 if (!strcmp(alarm_timers[i].name, name))
871 fprintf(stderr, "Unknown clock %s\n", name);
880 tmp = alarm_timers[i];
881 alarm_timers[i] = alarm_timers[cur];
882 alarm_timers[cur] = tmp;
886 name = strtok(NULL, ",");
892 /* Disable remaining timers */
893 for (i = cur; i < count; i++)
894 alarm_timers[i].name = NULL;
896 show_available_alarms();
904 static QEMUTimer *active_timers[2];
906 static QEMUClock *qemu_new_clock(int type)
909 clock = qemu_mallocz(sizeof(QEMUClock));
914 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
918 ts = qemu_mallocz(sizeof(QEMUTimer));
925 void qemu_free_timer(QEMUTimer *ts)
930 /* stop a timer, but do not dealloc it */
931 void qemu_del_timer(QEMUTimer *ts)
935 /* NOTE: this code must be signal safe because
936 qemu_timer_expired() can be called from a signal. */
937 pt = &active_timers[ts->clock->type];
950 /* modify the current timer so that it will be fired when current_time
951 >= expire_time. The corresponding callback will be called. */
952 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
958 /* add the timer in the sorted list */
959 /* NOTE: this code must be signal safe because
960 qemu_timer_expired() can be called from a signal. */
961 pt = &active_timers[ts->clock->type];
966 if (t->expire_time > expire_time)
970 ts->expire_time = expire_time;
974 /* Rearm if necessary */
975 if (pt == &active_timers[ts->clock->type]) {
976 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
977 qemu_rearm_alarm_timer(alarm_timer);
979 /* Interrupt execution to force deadline recalculation. */
985 int qemu_timer_pending(QEMUTimer *ts)
988 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
995 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
999 return (timer_head->expire_time <= current_time);
1002 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1008 if (!ts || ts->expire_time > current_time)
1010 /* remove timer from the list before calling the callback */
1011 *ptimer_head = ts->next;
1014 /* run the callback (the timer list can be modified) */
1019 int64_t qemu_get_clock(QEMUClock *clock)
1021 switch(clock->type) {
1022 case QEMU_TIMER_REALTIME:
1023 return get_clock() / 1000000;
1025 case QEMU_TIMER_VIRTUAL:
1027 return cpu_get_icount();
1029 return cpu_get_clock();
1034 static void init_timers(void)
1037 ticks_per_sec = QEMU_TIMER_BASE;
1038 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1039 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1043 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1045 uint64_t expire_time;
1047 if (qemu_timer_pending(ts)) {
1048 expire_time = ts->expire_time;
1052 qemu_put_be64(f, expire_time);
1055 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1057 uint64_t expire_time;
1059 expire_time = qemu_get_be64(f);
1060 if (expire_time != -1) {
1061 qemu_mod_timer(ts, expire_time);
1067 static void timer_save(QEMUFile *f, void *opaque)
1069 if (cpu_ticks_enabled) {
1070 hw_error("cannot save state if virtual timers are running");
1072 qemu_put_be64(f, cpu_ticks_offset);
1073 qemu_put_be64(f, ticks_per_sec);
1074 qemu_put_be64(f, cpu_clock_offset);
1077 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1079 if (version_id != 1 && version_id != 2)
1081 if (cpu_ticks_enabled) {
1084 cpu_ticks_offset=qemu_get_be64(f);
1085 ticks_per_sec=qemu_get_be64(f);
1086 if (version_id == 2) {
1087 cpu_clock_offset=qemu_get_be64(f);
1092 static void qemu_event_increment(void);
1095 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1096 DWORD_PTR dwUser, DWORD_PTR dw1,
1099 static void host_alarm_handler(int host_signum)
1103 #define DISP_FREQ 1000
1105 static int64_t delta_min = INT64_MAX;
1106 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1108 ti = qemu_get_clock(vm_clock);
1109 if (last_clock != 0) {
1110 delta = ti - last_clock;
1111 if (delta < delta_min)
1113 if (delta > delta_max)
1116 if (++count == DISP_FREQ) {
1117 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1118 muldiv64(delta_min, 1000000, ticks_per_sec),
1119 muldiv64(delta_max, 1000000, ticks_per_sec),
1120 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1121 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1123 delta_min = INT64_MAX;
1131 if (alarm_has_dynticks(alarm_timer) ||
1133 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1134 qemu_get_clock(vm_clock))) ||
1135 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1136 qemu_get_clock(rt_clock))) {
1137 qemu_event_increment();
1138 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1140 #ifndef CONFIG_IOTHREAD
1142 /* stop the currently executing cpu because a timer occured */
1145 if (next_cpu->kqemu_enabled) {
1146 kqemu_cpu_interrupt(next_cpu);
1151 timer_alarm_pending = 1;
1152 qemu_notify_event();
1156 static int64_t qemu_next_deadline(void)
1160 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1161 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1162 qemu_get_clock(vm_clock);
1164 /* To avoid problems with overflow limit this to 2^32. */
1174 #if defined(__linux__) || defined(_WIN32)
1175 static uint64_t qemu_next_deadline_dyntick(void)
1183 delta = (qemu_next_deadline() + 999) / 1000;
1185 if (active_timers[QEMU_TIMER_REALTIME]) {
1186 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1187 qemu_get_clock(rt_clock))*1000;
1188 if (rtdelta < delta)
1192 if (delta < MIN_TIMER_REARM_US)
1193 delta = MIN_TIMER_REARM_US;
1201 /* Sets a specific flag */
1202 static int fcntl_setfl(int fd, int flag)
1206 flags = fcntl(fd, F_GETFL);
1210 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1216 #if defined(__linux__)
1218 #define RTC_FREQ 1024
1220 static void enable_sigio_timer(int fd)
1222 struct sigaction act;
1225 sigfillset(&act.sa_mask);
1227 act.sa_handler = host_alarm_handler;
1229 sigaction(SIGIO, &act, NULL);
1230 fcntl_setfl(fd, O_ASYNC);
1231 fcntl(fd, F_SETOWN, getpid());
1234 static int hpet_start_timer(struct qemu_alarm_timer *t)
1236 struct hpet_info info;
1239 fd = open("/dev/hpet", O_RDONLY);
1244 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1246 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1247 "error, but for better emulation accuracy type:\n"
1248 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1252 /* Check capabilities */
1253 r = ioctl(fd, HPET_INFO, &info);
1257 /* Enable periodic mode */
1258 r = ioctl(fd, HPET_EPI, 0);
1259 if (info.hi_flags && (r < 0))
1262 /* Enable interrupt */
1263 r = ioctl(fd, HPET_IE_ON, 0);
1267 enable_sigio_timer(fd);
1268 t->priv = (void *)(long)fd;
1276 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1278 int fd = (long)t->priv;
1283 static int rtc_start_timer(struct qemu_alarm_timer *t)
1286 unsigned long current_rtc_freq = 0;
1288 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1291 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
1292 if (current_rtc_freq != RTC_FREQ &&
1293 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1294 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1295 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1296 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1299 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1305 enable_sigio_timer(rtc_fd);
1307 t->priv = (void *)(long)rtc_fd;
1312 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1314 int rtc_fd = (long)t->priv;
1319 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1323 struct sigaction act;
1325 sigfillset(&act.sa_mask);
1327 act.sa_handler = host_alarm_handler;
1329 sigaction(SIGALRM, &act, NULL);
1332 * Initialize ev struct to 0 to avoid valgrind complaining
1333 * about uninitialized data in timer_create call
1335 memset(&ev, 0, sizeof(ev));
1336 ev.sigev_value.sival_int = 0;
1337 ev.sigev_notify = SIGEV_SIGNAL;
1338 ev.sigev_signo = SIGALRM;
1340 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1341 perror("timer_create");
1343 /* disable dynticks */
1344 fprintf(stderr, "Dynamic Ticks disabled\n");
1349 t->priv = (void *)(long)host_timer;
1354 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1356 timer_t host_timer = (timer_t)(long)t->priv;
1358 timer_delete(host_timer);
1361 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1363 timer_t host_timer = (timer_t)(long)t->priv;
1364 struct itimerspec timeout;
1365 int64_t nearest_delta_us = INT64_MAX;
1368 if (!active_timers[QEMU_TIMER_REALTIME] &&
1369 !active_timers[QEMU_TIMER_VIRTUAL])
1372 nearest_delta_us = qemu_next_deadline_dyntick();
1374 /* check whether a timer is already running */
1375 if (timer_gettime(host_timer, &timeout)) {
1377 fprintf(stderr, "Internal timer error: aborting\n");
1380 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1381 if (current_us && current_us <= nearest_delta_us)
1384 timeout.it_interval.tv_sec = 0;
1385 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1386 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1387 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1388 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1390 fprintf(stderr, "Internal timer error: aborting\n");
1395 #endif /* defined(__linux__) */
1397 static int unix_start_timer(struct qemu_alarm_timer *t)
1399 struct sigaction act;
1400 struct itimerval itv;
1404 sigfillset(&act.sa_mask);
1406 act.sa_handler = host_alarm_handler;
1408 sigaction(SIGALRM, &act, NULL);
1410 itv.it_interval.tv_sec = 0;
1411 /* for i386 kernel 2.6 to get 1 ms */
1412 itv.it_interval.tv_usec = 999;
1413 itv.it_value.tv_sec = 0;
1414 itv.it_value.tv_usec = 10 * 1000;
1416 err = setitimer(ITIMER_REAL, &itv, NULL);
1423 static void unix_stop_timer(struct qemu_alarm_timer *t)
1425 struct itimerval itv;
1427 memset(&itv, 0, sizeof(itv));
1428 setitimer(ITIMER_REAL, &itv, NULL);
1431 #endif /* !defined(_WIN32) */
1436 static int win32_start_timer(struct qemu_alarm_timer *t)
1439 struct qemu_alarm_win32 *data = t->priv;
1442 memset(&tc, 0, sizeof(tc));
1443 timeGetDevCaps(&tc, sizeof(tc));
1445 if (data->period < tc.wPeriodMin)
1446 data->period = tc.wPeriodMin;
1448 timeBeginPeriod(data->period);
1450 flags = TIME_CALLBACK_FUNCTION;
1451 if (alarm_has_dynticks(t))
1452 flags |= TIME_ONESHOT;
1454 flags |= TIME_PERIODIC;
1456 data->timerId = timeSetEvent(1, // interval (ms)
1457 data->period, // resolution
1458 host_alarm_handler, // function
1459 (DWORD)t, // parameter
1462 if (!data->timerId) {
1463 perror("Failed to initialize win32 alarm timer");
1464 timeEndPeriod(data->period);
1471 static void win32_stop_timer(struct qemu_alarm_timer *t)
1473 struct qemu_alarm_win32 *data = t->priv;
1475 timeKillEvent(data->timerId);
1476 timeEndPeriod(data->period);
1479 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1481 struct qemu_alarm_win32 *data = t->priv;
1482 uint64_t nearest_delta_us;
1484 if (!active_timers[QEMU_TIMER_REALTIME] &&
1485 !active_timers[QEMU_TIMER_VIRTUAL])
1488 nearest_delta_us = qemu_next_deadline_dyntick();
1489 nearest_delta_us /= 1000;
1491 timeKillEvent(data->timerId);
1493 data->timerId = timeSetEvent(1,
1497 TIME_ONESHOT | TIME_PERIODIC);
1499 if (!data->timerId) {
1500 perror("Failed to re-arm win32 alarm timer");
1502 timeEndPeriod(data->period);
1509 static int init_timer_alarm(void)
1511 struct qemu_alarm_timer *t = NULL;
1514 for (i = 0; alarm_timers[i].name; i++) {
1515 t = &alarm_timers[i];
1535 static void quit_timers(void)
1537 alarm_timer->stop(alarm_timer);
1541 /***********************************************************/
1542 /* host time/date access */
1543 void qemu_get_timedate(struct tm *tm, int offset)
1550 if (rtc_date_offset == -1) {
1554 ret = localtime(&ti);
1556 ti -= rtc_date_offset;
1560 memcpy(tm, ret, sizeof(struct tm));
1563 int qemu_timedate_diff(struct tm *tm)
1567 if (rtc_date_offset == -1)
1569 seconds = mktimegm(tm);
1571 seconds = mktime(tm);
1573 seconds = mktimegm(tm) + rtc_date_offset;
1575 return seconds - time(NULL);
1579 static void socket_cleanup(void)
1584 static int socket_init(void)
1589 ret = WSAStartup(MAKEWORD(2,2), &Data);
1591 err = WSAGetLastError();
1592 fprintf(stderr, "WSAStartup: %d\n", err);
1595 atexit(socket_cleanup);
1600 /***********************************************************/
1601 /* Bluetooth support */
1604 static struct HCIInfo *hci_table[MAX_NICS];
1606 static struct bt_vlan_s {
1607 struct bt_scatternet_s net;
1609 struct bt_vlan_s *next;
1612 /* find or alloc a new bluetooth "VLAN" */
1613 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1615 struct bt_vlan_s **pvlan, *vlan;
1616 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1620 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1622 pvlan = &first_bt_vlan;
1623 while (*pvlan != NULL)
1624 pvlan = &(*pvlan)->next;
1629 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1633 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1638 static struct HCIInfo null_hci = {
1639 .cmd_send = null_hci_send,
1640 .sco_send = null_hci_send,
1641 .acl_send = null_hci_send,
1642 .bdaddr_set = null_hci_addr_set,
1645 struct HCIInfo *qemu_next_hci(void)
1647 if (cur_hci == nb_hcis)
1650 return hci_table[cur_hci++];
1653 static struct HCIInfo *hci_init(const char *str)
1656 struct bt_scatternet_s *vlan = 0;
1658 if (!strcmp(str, "null"))
1661 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1663 return bt_host_hci(str[4] ? str + 5 : "hci0");
1664 else if (!strncmp(str, "hci", 3)) {
1667 if (!strncmp(str + 3, ",vlan=", 6)) {
1668 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1673 vlan = qemu_find_bt_vlan(0);
1675 return bt_new_hci(vlan);
1678 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1683 static int bt_hci_parse(const char *str)
1685 struct HCIInfo *hci;
1688 if (nb_hcis >= MAX_NICS) {
1689 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1693 hci = hci_init(str);
1702 bdaddr.b[5] = 0x56 + nb_hcis;
1703 hci->bdaddr_set(hci, bdaddr.b);
1705 hci_table[nb_hcis++] = hci;
1710 static void bt_vhci_add(int vlan_id)
1712 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1715 fprintf(stderr, "qemu: warning: adding a VHCI to "
1716 "an empty scatternet %i\n", vlan_id);
1718 bt_vhci_init(bt_new_hci(vlan));
1721 static struct bt_device_s *bt_device_add(const char *opt)
1723 struct bt_scatternet_s *vlan;
1725 char *endp = strstr(opt, ",vlan=");
1726 int len = (endp ? endp - opt : strlen(opt)) + 1;
1729 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1732 vlan_id = strtol(endp + 6, &endp, 0);
1734 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1739 vlan = qemu_find_bt_vlan(vlan_id);
1742 fprintf(stderr, "qemu: warning: adding a slave device to "
1743 "an empty scatternet %i\n", vlan_id);
1745 if (!strcmp(devname, "keyboard"))
1746 return bt_keyboard_init(vlan);
1748 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1752 static int bt_parse(const char *opt)
1754 const char *endp, *p;
1757 if (strstart(opt, "hci", &endp)) {
1758 if (!*endp || *endp == ',') {
1760 if (!strstart(endp, ",vlan=", 0))
1763 return bt_hci_parse(opt);
1765 } else if (strstart(opt, "vhci", &endp)) {
1766 if (!*endp || *endp == ',') {
1768 if (strstart(endp, ",vlan=", &p)) {
1769 vlan = strtol(p, (char **) &endp, 0);
1771 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1775 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1784 } else if (strstart(opt, "device:", &endp))
1785 return !bt_device_add(endp);
1787 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1791 /***********************************************************/
1792 /* QEMU Block devices */
1794 #define HD_ALIAS "index=%d,media=disk"
1795 #define CDROM_ALIAS "index=2,media=cdrom"
1796 #define FD_ALIAS "index=%d,if=floppy"
1797 #define PFLASH_ALIAS "if=pflash"
1798 #define MTD_ALIAS "if=mtd"
1799 #define SD_ALIAS "index=0,if=sd"
1801 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1808 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1811 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1813 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1814 __FUNCTION__, optstr);
1818 qemu_opt_set(opts, "file", file);
1822 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1826 /* seek interface, bus and unit */
1828 TAILQ_FOREACH(dinfo, &drives, next) {
1829 if (dinfo->type == type &&
1830 dinfo->bus == bus &&
1831 dinfo->unit == unit)
1838 DriveInfo *drive_get_by_id(const char *id)
1842 TAILQ_FOREACH(dinfo, &drives, next) {
1843 if (strcmp(id, dinfo->id))
1850 int drive_get_max_bus(BlockInterfaceType type)
1856 TAILQ_FOREACH(dinfo, &drives, next) {
1857 if(dinfo->type == type &&
1858 dinfo->bus > max_bus)
1859 max_bus = dinfo->bus;
1864 const char *drive_get_serial(BlockDriverState *bdrv)
1868 TAILQ_FOREACH(dinfo, &drives, next) {
1869 if (dinfo->bdrv == bdrv)
1870 return dinfo->serial;
1876 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1880 TAILQ_FOREACH(dinfo, &drives, next) {
1881 if (dinfo->bdrv == bdrv)
1882 return dinfo->onerror;
1885 return BLOCK_ERR_STOP_ENOSPC;
1888 static void bdrv_format_print(void *opaque, const char *name)
1890 fprintf(stderr, " %s", name);
1893 void drive_uninit(BlockDriverState *bdrv)
1897 TAILQ_FOREACH(dinfo, &drives, next) {
1898 if (dinfo->bdrv != bdrv)
1900 qemu_opts_del(dinfo->opts);
1901 TAILQ_REMOVE(&drives, dinfo, next);
1907 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1911 const char *file = NULL;
1914 const char *mediastr = "";
1915 BlockInterfaceType type;
1916 enum { MEDIA_DISK, MEDIA_CDROM } media;
1917 int bus_id, unit_id;
1918 int cyls, heads, secs, translation;
1919 BlockDriver *drv = NULL;
1920 QEMUMachine *machine = opaque;
1924 int bdrv_flags, onerror;
1925 const char *devaddr;
1931 translation = BIOS_ATA_TRANSLATION_AUTO;
1934 if (machine->use_scsi) {
1936 max_devs = MAX_SCSI_DEVS;
1937 pstrcpy(devname, sizeof(devname), "scsi");
1940 max_devs = MAX_IDE_DEVS;
1941 pstrcpy(devname, sizeof(devname), "ide");
1945 /* extract parameters */
1946 bus_id = qemu_opt_get_number(opts, "bus", 0);
1947 unit_id = qemu_opt_get_number(opts, "unit", -1);
1948 index = qemu_opt_get_number(opts, "index", -1);
1950 cyls = qemu_opt_get_number(opts, "cyls", 0);
1951 heads = qemu_opt_get_number(opts, "heads", 0);
1952 secs = qemu_opt_get_number(opts, "secs", 0);
1954 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
1956 file = qemu_opt_get(opts, "file");
1957 serial = qemu_opt_get(opts, "serial");
1959 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
1960 pstrcpy(devname, sizeof(devname), buf);
1961 if (!strcmp(buf, "ide")) {
1963 max_devs = MAX_IDE_DEVS;
1964 } else if (!strcmp(buf, "scsi")) {
1966 max_devs = MAX_SCSI_DEVS;
1967 } else if (!strcmp(buf, "floppy")) {
1970 } else if (!strcmp(buf, "pflash")) {
1973 } else if (!strcmp(buf, "mtd")) {
1976 } else if (!strcmp(buf, "sd")) {
1979 } else if (!strcmp(buf, "virtio")) {
1982 } else if (!strcmp(buf, "xen")) {
1985 } else if (!strcmp(buf, "none")) {
1989 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
1994 if (cyls || heads || secs) {
1995 if (cyls < 1 || cyls > 16383) {
1996 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
1999 if (heads < 1 || heads > 16) {
2000 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
2003 if (secs < 1 || secs > 63) {
2004 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
2009 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
2012 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2016 if (!strcmp(buf, "none"))
2017 translation = BIOS_ATA_TRANSLATION_NONE;
2018 else if (!strcmp(buf, "lba"))
2019 translation = BIOS_ATA_TRANSLATION_LBA;
2020 else if (!strcmp(buf, "auto"))
2021 translation = BIOS_ATA_TRANSLATION_AUTO;
2023 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2028 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2029 if (!strcmp(buf, "disk")) {
2031 } else if (!strcmp(buf, "cdrom")) {
2032 if (cyls || secs || heads) {
2034 "qemu: '%s' invalid physical CHS format\n", buf);
2037 media = MEDIA_CDROM;
2039 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2044 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2045 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2047 else if (!strcmp(buf, "writethrough"))
2049 else if (!strcmp(buf, "writeback"))
2052 fprintf(stderr, "qemu: invalid cache option\n");
2057 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2058 if (strcmp(buf, "?") == 0) {
2059 fprintf(stderr, "qemu: Supported formats:");
2060 bdrv_iterate_format(bdrv_format_print, NULL);
2061 fprintf(stderr, "\n");
2064 drv = bdrv_find_format(buf);
2066 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2071 onerror = BLOCK_ERR_STOP_ENOSPC;
2072 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2073 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2074 fprintf(stderr, "werror is no supported by this format\n");
2077 if (!strcmp(buf, "ignore"))
2078 onerror = BLOCK_ERR_IGNORE;
2079 else if (!strcmp(buf, "enospc"))
2080 onerror = BLOCK_ERR_STOP_ENOSPC;
2081 else if (!strcmp(buf, "stop"))
2082 onerror = BLOCK_ERR_STOP_ANY;
2083 else if (!strcmp(buf, "report"))
2084 onerror = BLOCK_ERR_REPORT;
2086 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
2091 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2092 if (type != IF_VIRTIO) {
2093 fprintf(stderr, "addr is not supported\n");
2098 /* compute bus and unit according index */
2101 if (bus_id != 0 || unit_id != -1) {
2103 "qemu: index cannot be used with bus and unit\n");
2111 unit_id = index % max_devs;
2112 bus_id = index / max_devs;
2116 /* if user doesn't specify a unit_id,
2117 * try to find the first free
2120 if (unit_id == -1) {
2122 while (drive_get(type, bus_id, unit_id) != NULL) {
2124 if (max_devs && unit_id >= max_devs) {
2125 unit_id -= max_devs;
2133 if (max_devs && unit_id >= max_devs) {
2134 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2135 unit_id, max_devs - 1);
2140 * ignore multiple definitions
2143 if (drive_get(type, bus_id, unit_id) != NULL) {
2150 dinfo = qemu_mallocz(sizeof(*dinfo));
2151 if ((buf = qemu_opts_id(opts)) != NULL) {
2152 dinfo->id = qemu_strdup(buf);
2154 /* no id supplied -> create one */
2155 dinfo->id = qemu_mallocz(32);
2156 if (type == IF_IDE || type == IF_SCSI)
2157 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2159 snprintf(dinfo->id, 32, "%s%i%s%i",
2160 devname, bus_id, mediastr, unit_id);
2162 snprintf(dinfo->id, 32, "%s%s%i",
2163 devname, mediastr, unit_id);
2165 dinfo->bdrv = bdrv_new(dinfo->id);
2166 dinfo->devaddr = devaddr;
2168 dinfo->bus = bus_id;
2169 dinfo->unit = unit_id;
2170 dinfo->onerror = onerror;
2173 strncpy(dinfo->serial, serial, sizeof(serial));
2174 TAILQ_INSERT_TAIL(&drives, dinfo, next);
2183 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2184 bdrv_set_translation_hint(dinfo->bdrv, translation);
2188 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2193 /* FIXME: This isn't really a floppy, but it's a reasonable
2196 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2212 bdrv_flags |= BDRV_O_SNAPSHOT;
2213 cache = 2; /* always use write-back with snapshot */
2215 if (cache == 0) /* no caching */
2216 bdrv_flags |= BDRV_O_NOCACHE;
2217 else if (cache == 2) /* write-back */
2218 bdrv_flags |= BDRV_O_CACHE_WB;
2219 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2220 fprintf(stderr, "qemu: could not open disk image %s\n",
2224 if (bdrv_key_required(dinfo->bdrv))
2230 static int drive_init_func(QemuOpts *opts, void *opaque)
2232 QEMUMachine *machine = opaque;
2233 int fatal_error = 0;
2235 if (drive_init(opts, machine, &fatal_error) == NULL) {
2242 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2244 if (NULL == qemu_opt_get(opts, "snapshot")) {
2245 qemu_opt_set(opts, "snapshot", "on");
2250 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2252 boot_set_handler = func;
2253 boot_set_opaque = opaque;
2256 int qemu_boot_set(const char *boot_devices)
2258 if (!boot_set_handler) {
2261 return boot_set_handler(boot_set_opaque, boot_devices);
2264 static int parse_bootdevices(char *devices)
2266 /* We just do some generic consistency checks */
2270 for (p = devices; *p != '\0'; p++) {
2271 /* Allowed boot devices are:
2272 * a-b: floppy disk drives
2273 * c-f: IDE disk drives
2274 * g-m: machine implementation dependant drives
2275 * n-p: network devices
2276 * It's up to each machine implementation to check if the given boot
2277 * devices match the actual hardware implementation and firmware
2280 if (*p < 'a' || *p > 'p') {
2281 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2284 if (bitmap & (1 << (*p - 'a'))) {
2285 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2288 bitmap |= 1 << (*p - 'a');
2293 static void restore_boot_devices(void *opaque)
2295 char *standard_boot_devices = opaque;
2297 qemu_boot_set(standard_boot_devices);
2299 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2300 qemu_free(standard_boot_devices);
2303 static void numa_add(const char *optarg)
2307 unsigned long long value, endvalue;
2310 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2311 if (!strcmp(option, "node")) {
2312 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2313 nodenr = nb_numa_nodes;
2315 nodenr = strtoull(option, NULL, 10);
2318 if (get_param_value(option, 128, "mem", optarg) == 0) {
2319 node_mem[nodenr] = 0;
2321 value = strtoull(option, &endptr, 0);
2323 case 0: case 'M': case 'm':
2330 node_mem[nodenr] = value;
2332 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2333 node_cpumask[nodenr] = 0;
2335 value = strtoull(option, &endptr, 10);
2338 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2340 if (*endptr == '-') {
2341 endvalue = strtoull(endptr+1, &endptr, 10);
2342 if (endvalue >= 63) {
2345 "only 63 CPUs in NUMA mode supported.\n");
2347 value = (1 << (endvalue + 1)) - (1 << value);
2352 node_cpumask[nodenr] = value;
2359 /***********************************************************/
2362 static USBPort *used_usb_ports;
2363 static USBPort *free_usb_ports;
2365 /* ??? Maybe change this to register a hub to keep track of the topology. */
2366 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
2367 usb_attachfn attach)
2369 port->opaque = opaque;
2370 port->index = index;
2371 port->attach = attach;
2372 port->next = free_usb_ports;
2373 free_usb_ports = port;
2376 int usb_device_add_dev(USBDevice *dev)
2380 /* Find a USB port to add the device to. */
2381 port = free_usb_ports;
2385 /* Create a new hub and chain it on. */
2386 free_usb_ports = NULL;
2387 port->next = used_usb_ports;
2388 used_usb_ports = port;
2390 hub = usb_hub_init(VM_USB_HUB_SIZE);
2391 usb_attach(port, hub);
2392 port = free_usb_ports;
2395 free_usb_ports = port->next;
2396 port->next = used_usb_ports;
2397 used_usb_ports = port;
2398 usb_attach(port, dev);
2402 static void usb_msd_password_cb(void *opaque, int err)
2404 USBDevice *dev = opaque;
2407 usb_device_add_dev(dev);
2409 dev->handle_destroy(dev);
2412 static int usb_device_add(const char *devname, int is_hotplug)
2417 if (!free_usb_ports)
2420 if (strstart(devname, "host:", &p)) {
2421 dev = usb_host_device_open(p);
2422 } else if (!strcmp(devname, "mouse")) {
2423 dev = usb_mouse_init();
2424 } else if (!strcmp(devname, "tablet")) {
2425 dev = usb_tablet_init();
2426 } else if (!strcmp(devname, "keyboard")) {
2427 dev = usb_keyboard_init();
2428 } else if (strstart(devname, "disk:", &p)) {
2429 BlockDriverState *bs;
2431 dev = usb_msd_init(p);
2434 bs = usb_msd_get_bdrv(dev);
2435 if (bdrv_key_required(bs)) {
2438 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2443 } else if (!strcmp(devname, "wacom-tablet")) {
2444 dev = usb_wacom_init();
2445 } else if (strstart(devname, "serial:", &p)) {
2446 dev = usb_serial_init(p);
2447 #ifdef CONFIG_BRLAPI
2448 } else if (!strcmp(devname, "braille")) {
2449 dev = usb_baum_init();
2451 } else if (strstart(devname, "net:", &p)) {
2454 if (net_client_init(NULL, "nic", p) < 0)
2456 nd_table[nic].model = "usb";
2457 dev = usb_net_init(&nd_table[nic]);
2458 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2459 dev = usb_bt_init(devname[2] ? hci_init(p) :
2460 bt_new_hci(qemu_find_bt_vlan(0)));
2467 return usb_device_add_dev(dev);
2470 int usb_device_del_addr(int bus_num, int addr)
2476 if (!used_usb_ports)
2482 lastp = &used_usb_ports;
2483 port = used_usb_ports;
2484 while (port && port->dev->addr != addr) {
2485 lastp = &port->next;
2493 *lastp = port->next;
2494 usb_attach(port, NULL);
2495 dev->handle_destroy(dev);
2496 port->next = free_usb_ports;
2497 free_usb_ports = port;
2501 static int usb_device_del(const char *devname)
2506 if (strstart(devname, "host:", &p))
2507 return usb_host_device_close(p);
2509 if (!used_usb_ports)
2512 p = strchr(devname, '.');
2515 bus_num = strtoul(devname, NULL, 0);
2516 addr = strtoul(p + 1, NULL, 0);
2518 return usb_device_del_addr(bus_num, addr);
2521 static int usb_parse(const char *cmdline)
2523 return usb_device_add(cmdline, 0);
2526 void do_usb_add(Monitor *mon, const char *devname)
2528 usb_device_add(devname, 1);
2531 void do_usb_del(Monitor *mon, const char *devname)
2533 usb_device_del(devname);
2536 void usb_info(Monitor *mon)
2540 const char *speed_str;
2543 monitor_printf(mon, "USB support not enabled\n");
2547 for (port = used_usb_ports; port; port = port->next) {
2551 switch(dev->speed) {
2555 case USB_SPEED_FULL:
2558 case USB_SPEED_HIGH:
2565 monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
2566 0, dev->addr, speed_str, dev->devname);
2570 /***********************************************************/
2571 /* PCMCIA/Cardbus */
2573 static struct pcmcia_socket_entry_s {
2574 PCMCIASocket *socket;
2575 struct pcmcia_socket_entry_s *next;
2576 } *pcmcia_sockets = 0;
2578 void pcmcia_socket_register(PCMCIASocket *socket)
2580 struct pcmcia_socket_entry_s *entry;
2582 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2583 entry->socket = socket;
2584 entry->next = pcmcia_sockets;
2585 pcmcia_sockets = entry;
2588 void pcmcia_socket_unregister(PCMCIASocket *socket)
2590 struct pcmcia_socket_entry_s *entry, **ptr;
2592 ptr = &pcmcia_sockets;
2593 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2594 if (entry->socket == socket) {
2600 void pcmcia_info(Monitor *mon)
2602 struct pcmcia_socket_entry_s *iter;
2604 if (!pcmcia_sockets)
2605 monitor_printf(mon, "No PCMCIA sockets\n");
2607 for (iter = pcmcia_sockets; iter; iter = iter->next)
2608 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2609 iter->socket->attached ? iter->socket->card_string :
2613 /***********************************************************/
2614 /* register display */
2616 struct DisplayAllocator default_allocator = {
2617 defaultallocator_create_displaysurface,
2618 defaultallocator_resize_displaysurface,
2619 defaultallocator_free_displaysurface
2622 void register_displaystate(DisplayState *ds)
2632 DisplayState *get_displaystate(void)
2634 return display_state;
2637 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2639 if(ds->allocator == &default_allocator) ds->allocator = da;
2640 return ds->allocator;
2645 static void dumb_display_init(void)
2647 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2648 ds->allocator = &default_allocator;
2649 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2650 register_displaystate(ds);
2653 /***********************************************************/
2656 typedef struct IOHandlerRecord {
2658 IOCanRWHandler *fd_read_poll;
2660 IOHandler *fd_write;
2663 /* temporary data */
2665 struct IOHandlerRecord *next;
2668 static IOHandlerRecord *first_io_handler;
2670 /* XXX: fd_read_poll should be suppressed, but an API change is
2671 necessary in the character devices to suppress fd_can_read(). */
2672 int qemu_set_fd_handler2(int fd,
2673 IOCanRWHandler *fd_read_poll,
2675 IOHandler *fd_write,
2678 IOHandlerRecord **pioh, *ioh;
2680 if (!fd_read && !fd_write) {
2681 pioh = &first_io_handler;
2686 if (ioh->fd == fd) {
2693 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2697 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2698 ioh->next = first_io_handler;
2699 first_io_handler = ioh;
2702 ioh->fd_read_poll = fd_read_poll;
2703 ioh->fd_read = fd_read;
2704 ioh->fd_write = fd_write;
2705 ioh->opaque = opaque;
2711 int qemu_set_fd_handler(int fd,
2713 IOHandler *fd_write,
2716 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2720 /***********************************************************/
2721 /* Polling handling */
2723 typedef struct PollingEntry {
2726 struct PollingEntry *next;
2729 static PollingEntry *first_polling_entry;
2731 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2733 PollingEntry **ppe, *pe;
2734 pe = qemu_mallocz(sizeof(PollingEntry));
2736 pe->opaque = opaque;
2737 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2742 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2744 PollingEntry **ppe, *pe;
2745 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2747 if (pe->func == func && pe->opaque == opaque) {
2755 /***********************************************************/
2756 /* Wait objects support */
2757 typedef struct WaitObjects {
2759 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2760 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2761 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2764 static WaitObjects wait_objects = {0};
2766 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2768 WaitObjects *w = &wait_objects;
2770 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2772 w->events[w->num] = handle;
2773 w->func[w->num] = func;
2774 w->opaque[w->num] = opaque;
2779 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2782 WaitObjects *w = &wait_objects;
2785 for (i = 0; i < w->num; i++) {
2786 if (w->events[i] == handle)
2789 w->events[i] = w->events[i + 1];
2790 w->func[i] = w->func[i + 1];
2791 w->opaque[i] = w->opaque[i + 1];
2799 /***********************************************************/
2800 /* ram save/restore */
2802 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2806 v = qemu_get_byte(f);
2809 if (qemu_get_buffer(f, buf, len) != len)
2813 v = qemu_get_byte(f);
2814 memset(buf, v, len);
2820 if (qemu_file_has_error(f))
2826 static int ram_load_v1(QEMUFile *f, void *opaque)
2831 if (qemu_get_be32(f) != last_ram_offset)
2833 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
2834 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
2841 #define BDRV_HASH_BLOCK_SIZE 1024
2842 #define IOBUF_SIZE 4096
2843 #define RAM_CBLOCK_MAGIC 0xfabe
2845 typedef struct RamDecompressState {
2848 uint8_t buf[IOBUF_SIZE];
2849 } RamDecompressState;
2851 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2854 memset(s, 0, sizeof(*s));
2856 ret = inflateInit(&s->zstream);
2862 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2866 s->zstream.avail_out = len;
2867 s->zstream.next_out = buf;
2868 while (s->zstream.avail_out > 0) {
2869 if (s->zstream.avail_in == 0) {
2870 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2872 clen = qemu_get_be16(s->f);
2873 if (clen > IOBUF_SIZE)
2875 qemu_get_buffer(s->f, s->buf, clen);
2876 s->zstream.avail_in = clen;
2877 s->zstream.next_in = s->buf;
2879 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2880 if (ret != Z_OK && ret != Z_STREAM_END) {
2887 static void ram_decompress_close(RamDecompressState *s)
2889 inflateEnd(&s->zstream);
2892 #define RAM_SAVE_FLAG_FULL 0x01
2893 #define RAM_SAVE_FLAG_COMPRESS 0x02
2894 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2895 #define RAM_SAVE_FLAG_PAGE 0x08
2896 #define RAM_SAVE_FLAG_EOS 0x10
2898 static int is_dup_page(uint8_t *page, uint8_t ch)
2900 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2901 uint32_t *array = (uint32_t *)page;
2904 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2905 if (array[i] != val)
2912 static int ram_save_block(QEMUFile *f)
2914 static ram_addr_t current_addr = 0;
2915 ram_addr_t saved_addr = current_addr;
2916 ram_addr_t addr = 0;
2919 while (addr < last_ram_offset) {
2920 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2923 cpu_physical_memory_reset_dirty(current_addr,
2924 current_addr + TARGET_PAGE_SIZE,
2925 MIGRATION_DIRTY_FLAG);
2927 p = qemu_get_ram_ptr(current_addr);
2929 if (is_dup_page(p, *p)) {
2930 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2931 qemu_put_byte(f, *p);
2933 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2934 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2940 addr += TARGET_PAGE_SIZE;
2941 current_addr = (saved_addr + addr) % last_ram_offset;
2947 static uint64_t bytes_transferred = 0;
2949 static ram_addr_t ram_save_remaining(void)
2952 ram_addr_t count = 0;
2954 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2955 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2962 uint64_t ram_bytes_remaining(void)
2964 return ram_save_remaining() * TARGET_PAGE_SIZE;
2967 uint64_t ram_bytes_transferred(void)
2969 return bytes_transferred;
2972 uint64_t ram_bytes_total(void)
2974 return last_ram_offset;
2977 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
2980 uint64_t bytes_transferred_last;
2982 uint64_t expected_time = 0;
2984 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2985 qemu_file_set_error(f);
2990 /* Make sure all dirty bits are set */
2991 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2992 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2993 cpu_physical_memory_set_dirty(addr);
2996 /* Enable dirty memory tracking */
2997 cpu_physical_memory_set_dirty_tracking(1);
2999 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
3002 bytes_transferred_last = bytes_transferred;
3003 bwidth = get_clock();
3005 while (!qemu_file_rate_limit(f)) {
3008 ret = ram_save_block(f);
3009 bytes_transferred += ret * TARGET_PAGE_SIZE;
3010 if (ret == 0) /* no more blocks */
3014 bwidth = get_clock() - bwidth;
3015 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
3017 /* if we haven't transferred anything this round, force expected_time to a
3018 * a very high value, but without crashing */
3022 /* try transferring iterative blocks of memory */
3026 /* flush all remaining blocks regardless of rate limiting */
3027 while (ram_save_block(f) != 0) {
3028 bytes_transferred += TARGET_PAGE_SIZE;
3030 cpu_physical_memory_set_dirty_tracking(0);
3033 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3035 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
3037 return (stage == 2) && (expected_time <= migrate_max_downtime());
3040 static int ram_load_dead(QEMUFile *f, void *opaque)
3042 RamDecompressState s1, *s = &s1;
3046 if (ram_decompress_open(s, f) < 0)
3048 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
3049 if (ram_decompress_buf(s, buf, 1) < 0) {
3050 fprintf(stderr, "Error while reading ram block header\n");
3054 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3055 BDRV_HASH_BLOCK_SIZE) < 0) {
3056 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
3061 printf("Error block header\n");
3065 ram_decompress_close(s);
3070 static int ram_load(QEMUFile *f, void *opaque, int version_id)
3075 if (version_id == 1)
3076 return ram_load_v1(f, opaque);
3078 if (version_id == 2) {
3079 if (qemu_get_be32(f) != last_ram_offset)
3081 return ram_load_dead(f, opaque);
3084 if (version_id != 3)
3088 addr = qemu_get_be64(f);
3090 flags = addr & ~TARGET_PAGE_MASK;
3091 addr &= TARGET_PAGE_MASK;
3093 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
3094 if (addr != last_ram_offset)
3098 if (flags & RAM_SAVE_FLAG_FULL) {
3099 if (ram_load_dead(f, opaque) < 0)
3103 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3104 uint8_t ch = qemu_get_byte(f);
3105 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3108 (!kvm_enabled() || kvm_has_sync_mmu())) {
3109 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
3112 } else if (flags & RAM_SAVE_FLAG_PAGE)
3113 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
3114 } while (!(flags & RAM_SAVE_FLAG_EOS));
3119 void qemu_service_io(void)
3121 qemu_notify_event();
3124 /***********************************************************/
3125 /* bottom halves (can be seen as timers which expire ASAP) */
3136 static QEMUBH *first_bh = NULL;
3138 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3141 bh = qemu_mallocz(sizeof(QEMUBH));
3143 bh->opaque = opaque;
3144 bh->next = first_bh;
3149 int qemu_bh_poll(void)
3155 for (bh = first_bh; bh; bh = bh->next) {
3156 if (!bh->deleted && bh->scheduled) {
3165 /* remove deleted bhs */
3179 void qemu_bh_schedule_idle(QEMUBH *bh)
3187 void qemu_bh_schedule(QEMUBH *bh)
3193 /* stop the currently executing CPU to execute the BH ASAP */
3194 qemu_notify_event();
3197 void qemu_bh_cancel(QEMUBH *bh)
3202 void qemu_bh_delete(QEMUBH *bh)
3208 static void qemu_bh_update_timeout(int *timeout)
3212 for (bh = first_bh; bh; bh = bh->next) {
3213 if (!bh->deleted && bh->scheduled) {
3215 /* idle bottom halves will be polled at least
3217 *timeout = MIN(10, *timeout);
3219 /* non-idle bottom halves will be executed
3228 /***********************************************************/
3229 /* machine registration */
3231 static QEMUMachine *first_machine = NULL;
3232 QEMUMachine *current_machine = NULL;
3234 int qemu_register_machine(QEMUMachine *m)
3237 pm = &first_machine;
3245 static QEMUMachine *find_machine(const char *name)
3249 for(m = first_machine; m != NULL; m = m->next) {
3250 if (!strcmp(m->name, name))
3252 if (m->alias && !strcmp(m->alias, name))
3258 static QEMUMachine *find_default_machine(void)
3262 for(m = first_machine; m != NULL; m = m->next) {
3263 if (m->is_default) {
3270 /***********************************************************/
3271 /* main execution loop */
3273 static void gui_update(void *opaque)
3275 uint64_t interval = GUI_REFRESH_INTERVAL;
3276 DisplayState *ds = opaque;
3277 DisplayChangeListener *dcl = ds->listeners;
3281 while (dcl != NULL) {
3282 if (dcl->gui_timer_interval &&
3283 dcl->gui_timer_interval < interval)
3284 interval = dcl->gui_timer_interval;
3287 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3290 static void nographic_update(void *opaque)
3292 uint64_t interval = GUI_REFRESH_INTERVAL;
3294 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3297 struct vm_change_state_entry {
3298 VMChangeStateHandler *cb;
3300 LIST_ENTRY (vm_change_state_entry) entries;
3303 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3305 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3308 VMChangeStateEntry *e;
3310 e = qemu_mallocz(sizeof (*e));
3314 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3318 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3320 LIST_REMOVE (e, entries);
3324 static void vm_state_notify(int running, int reason)
3326 VMChangeStateEntry *e;
3328 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3329 e->cb(e->opaque, running, reason);
3333 static void resume_all_vcpus(void);
3334 static void pause_all_vcpus(void);
3341 vm_state_notify(1, 0);
3342 qemu_rearm_alarm_timer(alarm_timer);
3347 /* reset/shutdown handler */
3349 typedef struct QEMUResetEntry {
3350 TAILQ_ENTRY(QEMUResetEntry) entry;
3351 QEMUResetHandler *func;
3355 static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3356 TAILQ_HEAD_INITIALIZER(reset_handlers);
3357 static int reset_requested;
3358 static int shutdown_requested;
3359 static int powerdown_requested;
3360 static int debug_requested;
3361 static int vmstop_requested;
3363 int qemu_shutdown_requested(void)
3365 int r = shutdown_requested;
3366 shutdown_requested = 0;
3370 int qemu_reset_requested(void)
3372 int r = reset_requested;
3373 reset_requested = 0;
3377 int qemu_powerdown_requested(void)
3379 int r = powerdown_requested;
3380 powerdown_requested = 0;
3384 static int qemu_debug_requested(void)
3386 int r = debug_requested;
3387 debug_requested = 0;
3391 static int qemu_vmstop_requested(void)
3393 int r = vmstop_requested;
3394 vmstop_requested = 0;
3398 static void do_vm_stop(int reason)
3401 cpu_disable_ticks();
3404 vm_state_notify(0, reason);
3408 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3410 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3413 re->opaque = opaque;
3414 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3417 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3421 TAILQ_FOREACH(re, &reset_handlers, entry) {
3422 if (re->func == func && re->opaque == opaque) {
3423 TAILQ_REMOVE(&reset_handlers, re, entry);
3430 void qemu_system_reset(void)
3432 QEMUResetEntry *re, *nre;
3434 /* reset all devices */
3435 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3436 re->func(re->opaque);
3440 void qemu_system_reset_request(void)
3443 shutdown_requested = 1;
3445 reset_requested = 1;
3447 qemu_notify_event();
3450 void qemu_system_shutdown_request(void)
3452 shutdown_requested = 1;
3453 qemu_notify_event();
3456 void qemu_system_powerdown_request(void)
3458 powerdown_requested = 1;
3459 qemu_notify_event();
3462 #ifdef CONFIG_IOTHREAD
3463 static void qemu_system_vmstop_request(int reason)
3465 vmstop_requested = reason;
3466 qemu_notify_event();
3471 static int io_thread_fd = -1;
3473 static void qemu_event_increment(void)
3475 static const char byte = 0;
3477 if (io_thread_fd == -1)
3480 write(io_thread_fd, &byte, sizeof(byte));
3483 static void qemu_event_read(void *opaque)
3485 int fd = (unsigned long)opaque;
3488 /* Drain the notify pipe */
3491 len = read(fd, buffer, sizeof(buffer));
3492 } while ((len == -1 && errno == EINTR) || len > 0);
3495 static int qemu_event_init(void)
3504 err = fcntl_setfl(fds[0], O_NONBLOCK);
3508 err = fcntl_setfl(fds[1], O_NONBLOCK);
3512 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3513 (void *)(unsigned long)fds[0]);
3515 io_thread_fd = fds[1];
3524 HANDLE qemu_event_handle;
3526 static void dummy_event_handler(void *opaque)
3530 static int qemu_event_init(void)
3532 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3533 if (!qemu_event_handle) {
3534 perror("Failed CreateEvent");
3537 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3541 static void qemu_event_increment(void)
3543 SetEvent(qemu_event_handle);
3547 static int cpu_can_run(CPUState *env)
3556 #ifndef CONFIG_IOTHREAD
3557 static int qemu_init_main_loop(void)
3559 return qemu_event_init();
3562 void qemu_init_vcpu(void *_env)
3564 CPUState *env = _env;
3571 int qemu_cpu_self(void *env)
3576 static void resume_all_vcpus(void)
3580 static void pause_all_vcpus(void)
3584 void qemu_cpu_kick(void *env)
3589 void qemu_notify_event(void)
3591 CPUState *env = cpu_single_env;
3596 if (env->kqemu_enabled)
3597 kqemu_cpu_interrupt(env);
3602 #define qemu_mutex_lock_iothread() do { } while (0)
3603 #define qemu_mutex_unlock_iothread() do { } while (0)
3605 void vm_stop(int reason)
3610 #else /* CONFIG_IOTHREAD */
3612 #include "qemu-thread.h"
3614 QemuMutex qemu_global_mutex;
3615 static QemuMutex qemu_fair_mutex;
3617 static QemuThread io_thread;
3619 static QemuThread *tcg_cpu_thread;
3620 static QemuCond *tcg_halt_cond;
3622 static int qemu_system_ready;
3624 static QemuCond qemu_cpu_cond;
3626 static QemuCond qemu_system_cond;
3627 static QemuCond qemu_pause_cond;
3629 static void block_io_signals(void);
3630 static void unblock_io_signals(void);
3631 static int tcg_has_work(void);
3633 static int qemu_init_main_loop(void)
3637 ret = qemu_event_init();
3641 qemu_cond_init(&qemu_pause_cond);
3642 qemu_mutex_init(&qemu_fair_mutex);
3643 qemu_mutex_init(&qemu_global_mutex);
3644 qemu_mutex_lock(&qemu_global_mutex);
3646 unblock_io_signals();
3647 qemu_thread_self(&io_thread);
3652 static void qemu_wait_io_event(CPUState *env)
3654 while (!tcg_has_work())
3655 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3657 qemu_mutex_unlock(&qemu_global_mutex);
3660 * Users of qemu_global_mutex can be starved, having no chance
3661 * to acquire it since this path will get to it first.
3662 * So use another lock to provide fairness.
3664 qemu_mutex_lock(&qemu_fair_mutex);
3665 qemu_mutex_unlock(&qemu_fair_mutex);
3667 qemu_mutex_lock(&qemu_global_mutex);
3671 qemu_cond_signal(&qemu_pause_cond);
3675 static int qemu_cpu_exec(CPUState *env);
3677 static void *kvm_cpu_thread_fn(void *arg)
3679 CPUState *env = arg;
3682 qemu_thread_self(env->thread);
3684 /* signal CPU creation */
3685 qemu_mutex_lock(&qemu_global_mutex);
3687 qemu_cond_signal(&qemu_cpu_cond);
3689 /* and wait for machine initialization */
3690 while (!qemu_system_ready)
3691 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3694 if (cpu_can_run(env))
3696 qemu_wait_io_event(env);
3702 static void tcg_cpu_exec(void);
3704 static void *tcg_cpu_thread_fn(void *arg)
3706 CPUState *env = arg;
3709 qemu_thread_self(env->thread);
3711 /* signal CPU creation */
3712 qemu_mutex_lock(&qemu_global_mutex);
3713 for (env = first_cpu; env != NULL; env = env->next_cpu)
3715 qemu_cond_signal(&qemu_cpu_cond);
3717 /* and wait for machine initialization */
3718 while (!qemu_system_ready)
3719 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3723 qemu_wait_io_event(cur_cpu);
3729 void qemu_cpu_kick(void *_env)
3731 CPUState *env = _env;
3732 qemu_cond_broadcast(env->halt_cond);
3734 qemu_thread_signal(env->thread, SIGUSR1);
3737 int qemu_cpu_self(void *env)
3739 return (cpu_single_env != NULL);
3742 static void cpu_signal(int sig)
3745 cpu_exit(cpu_single_env);
3748 static void block_io_signals(void)
3751 struct sigaction sigact;
3754 sigaddset(&set, SIGUSR2);
3755 sigaddset(&set, SIGIO);
3756 sigaddset(&set, SIGALRM);
3757 pthread_sigmask(SIG_BLOCK, &set, NULL);
3760 sigaddset(&set, SIGUSR1);
3761 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3763 memset(&sigact, 0, sizeof(sigact));
3764 sigact.sa_handler = cpu_signal;
3765 sigaction(SIGUSR1, &sigact, NULL);
3768 static void unblock_io_signals(void)
3773 sigaddset(&set, SIGUSR2);
3774 sigaddset(&set, SIGIO);
3775 sigaddset(&set, SIGALRM);
3776 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3779 sigaddset(&set, SIGUSR1);
3780 pthread_sigmask(SIG_BLOCK, &set, NULL);
3783 static void qemu_signal_lock(unsigned int msecs)
3785 qemu_mutex_lock(&qemu_fair_mutex);
3787 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3788 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3789 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3792 qemu_mutex_unlock(&qemu_fair_mutex);
3795 static void qemu_mutex_lock_iothread(void)
3797 if (kvm_enabled()) {
3798 qemu_mutex_lock(&qemu_fair_mutex);
3799 qemu_mutex_lock(&qemu_global_mutex);
3800 qemu_mutex_unlock(&qemu_fair_mutex);
3802 qemu_signal_lock(100);
3805 static void qemu_mutex_unlock_iothread(void)
3807 qemu_mutex_unlock(&qemu_global_mutex);
3810 static int all_vcpus_paused(void)
3812 CPUState *penv = first_cpu;
3817 penv = (CPUState *)penv->next_cpu;
3823 static void pause_all_vcpus(void)
3825 CPUState *penv = first_cpu;
3829 qemu_thread_signal(penv->thread, SIGUSR1);
3830 qemu_cpu_kick(penv);
3831 penv = (CPUState *)penv->next_cpu;
3834 while (!all_vcpus_paused()) {
3835 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3838 qemu_thread_signal(penv->thread, SIGUSR1);
3839 penv = (CPUState *)penv->next_cpu;
3844 static void resume_all_vcpus(void)
3846 CPUState *penv = first_cpu;
3851 qemu_thread_signal(penv->thread, SIGUSR1);
3852 qemu_cpu_kick(penv);
3853 penv = (CPUState *)penv->next_cpu;
3857 static void tcg_init_vcpu(void *_env)
3859 CPUState *env = _env;
3860 /* share a single thread for all cpus with TCG */
3861 if (!tcg_cpu_thread) {
3862 env->thread = qemu_mallocz(sizeof(QemuThread));
3863 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3864 qemu_cond_init(env->halt_cond);
3865 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3866 while (env->created == 0)
3867 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3868 tcg_cpu_thread = env->thread;
3869 tcg_halt_cond = env->halt_cond;
3871 env->thread = tcg_cpu_thread;
3872 env->halt_cond = tcg_halt_cond;
3876 static void kvm_start_vcpu(CPUState *env)
3879 env->thread = qemu_mallocz(sizeof(QemuThread));
3880 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3881 qemu_cond_init(env->halt_cond);
3882 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3883 while (env->created == 0)
3884 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3887 void qemu_init_vcpu(void *_env)
3889 CPUState *env = _env;
3892 kvm_start_vcpu(env);
3897 void qemu_notify_event(void)
3899 qemu_event_increment();
3902 void vm_stop(int reason)
3905 qemu_thread_self(&me);
3907 if (!qemu_thread_equal(&me, &io_thread)) {
3908 qemu_system_vmstop_request(reason);
3910 * FIXME: should not return to device code in case
3911 * vm_stop() has been requested.
3913 if (cpu_single_env) {
3914 cpu_exit(cpu_single_env);
3915 cpu_single_env->stop = 1;
3926 static void host_main_loop_wait(int *timeout)
3932 /* XXX: need to suppress polling by better using win32 events */
3934 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3935 ret |= pe->func(pe->opaque);
3939 WaitObjects *w = &wait_objects;
3941 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3942 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3943 if (w->func[ret - WAIT_OBJECT_0])
3944 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3946 /* Check for additional signaled events */
3947 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3949 /* Check if event is signaled */
3950 ret2 = WaitForSingleObject(w->events[i], 0);
3951 if(ret2 == WAIT_OBJECT_0) {
3953 w->func[i](w->opaque[i]);
3954 } else if (ret2 == WAIT_TIMEOUT) {
3956 err = GetLastError();
3957 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3960 } else if (ret == WAIT_TIMEOUT) {
3962 err = GetLastError();
3963 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3970 static void host_main_loop_wait(int *timeout)
3975 void main_loop_wait(int timeout)
3977 IOHandlerRecord *ioh;
3978 fd_set rfds, wfds, xfds;
3982 qemu_bh_update_timeout(&timeout);
3984 host_main_loop_wait(&timeout);
3986 /* poll any events */
3987 /* XXX: separate device handlers from system ones */
3992 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3996 (!ioh->fd_read_poll ||
3997 ioh->fd_read_poll(ioh->opaque) != 0)) {
3998 FD_SET(ioh->fd, &rfds);
4002 if (ioh->fd_write) {
4003 FD_SET(ioh->fd, &wfds);
4009 tv.tv_sec = timeout / 1000;
4010 tv.tv_usec = (timeout % 1000) * 1000;
4012 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4014 qemu_mutex_unlock_iothread();
4015 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4016 qemu_mutex_lock_iothread();
4018 IOHandlerRecord **pioh;
4020 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4021 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
4022 ioh->fd_read(ioh->opaque);
4024 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
4025 ioh->fd_write(ioh->opaque);
4029 /* remove deleted IO handlers */
4030 pioh = &first_io_handler;
4041 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
4043 /* rearm timer, if not periodic */
4044 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4045 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4046 qemu_rearm_alarm_timer(alarm_timer);
4049 /* vm time timers */
4051 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4052 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4053 qemu_get_clock(vm_clock));
4056 /* real time timers */
4057 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4058 qemu_get_clock(rt_clock));
4060 /* Check bottom-halves last in case any of the earlier events triggered
4066 static int qemu_cpu_exec(CPUState *env)
4069 #ifdef CONFIG_PROFILER
4073 #ifdef CONFIG_PROFILER
4074 ti = profile_getclock();
4079 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4080 env->icount_decr.u16.low = 0;
4081 env->icount_extra = 0;
4082 count = qemu_next_deadline();
4083 count = (count + (1 << icount_time_shift) - 1)
4084 >> icount_time_shift;
4085 qemu_icount += count;
4086 decr = (count > 0xffff) ? 0xffff : count;
4088 env->icount_decr.u16.low = decr;
4089 env->icount_extra = count;
4091 ret = cpu_exec(env);
4092 #ifdef CONFIG_PROFILER
4093 qemu_time += profile_getclock() - ti;
4096 /* Fold pending instructions back into the
4097 instruction counter, and clear the interrupt flag. */
4098 qemu_icount -= (env->icount_decr.u16.low
4099 + env->icount_extra);
4100 env->icount_decr.u32 = 0;
4101 env->icount_extra = 0;
4106 static void tcg_cpu_exec(void)
4110 if (next_cpu == NULL)
4111 next_cpu = first_cpu;
4112 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4113 CPUState *env = cur_cpu = next_cpu;
4117 if (timer_alarm_pending) {
4118 timer_alarm_pending = 0;
4121 if (cpu_can_run(env))
4122 ret = qemu_cpu_exec(env);
4123 if (ret == EXCP_DEBUG) {
4124 gdb_set_stop_cpu(env);
4125 debug_requested = 1;
4131 static int cpu_has_work(CPUState *env)
4139 if (qemu_cpu_has_work(env))
4144 static int tcg_has_work(void)
4148 for (env = first_cpu; env != NULL; env = env->next_cpu)
4149 if (cpu_has_work(env))
4154 static int qemu_calculate_timeout(void)
4156 #ifndef CONFIG_IOTHREAD
4161 else if (tcg_has_work())
4163 else if (!use_icount)
4166 /* XXX: use timeout computed from timers */
4169 /* Advance virtual time to the next event. */
4170 if (use_icount == 1) {
4171 /* When not using an adaptive execution frequency
4172 we tend to get badly out of sync with real time,
4173 so just delay for a reasonable amount of time. */
4176 delta = cpu_get_icount() - cpu_get_clock();
4179 /* If virtual time is ahead of real time then just
4181 timeout = (delta / 1000000) + 1;
4183 /* Wait for either IO to occur or the next
4185 add = qemu_next_deadline();
4186 /* We advance the timer before checking for IO.
4187 Limit the amount we advance so that early IO
4188 activity won't get the guest too far ahead. */
4192 add = (add + (1 << icount_time_shift) - 1)
4193 >> icount_time_shift;
4195 timeout = delta / 1000000;
4202 #else /* CONFIG_IOTHREAD */
4207 static int vm_can_run(void)
4209 if (powerdown_requested)
4211 if (reset_requested)
4213 if (shutdown_requested)
4215 if (debug_requested)
4220 qemu_irq qemu_system_powerdown;
4222 static void main_loop(void)
4226 #ifdef CONFIG_IOTHREAD
4227 qemu_system_ready = 1;
4228 qemu_cond_broadcast(&qemu_system_cond);
4233 #ifdef CONFIG_PROFILER
4236 #ifndef CONFIG_IOTHREAD
4239 #ifdef CONFIG_PROFILER
4240 ti = profile_getclock();
4242 main_loop_wait(qemu_calculate_timeout());
4243 #ifdef CONFIG_PROFILER
4244 dev_time += profile_getclock() - ti;
4246 } while (vm_can_run());
4248 if (qemu_debug_requested())
4249 vm_stop(EXCP_DEBUG);
4250 if (qemu_shutdown_requested()) {
4257 if (qemu_reset_requested()) {
4259 qemu_system_reset();
4262 if (qemu_powerdown_requested()) {
4263 qemu_irq_raise(qemu_system_powerdown);
4265 if ((r = qemu_vmstop_requested()))
4271 static void version(void)
4273 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4276 static void help(int exitcode)
4279 printf("usage: %s [options] [disk_image]\n"
4281 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4283 #define DEF(option, opt_arg, opt_enum, opt_help) \
4285 #define DEFHEADING(text) stringify(text) "\n"
4286 #include "qemu-options.h"
4291 "During emulation, the following keys are useful:\n"
4292 "ctrl-alt-f toggle full screen\n"
4293 "ctrl-alt-n switch to virtual console 'n'\n"
4294 "ctrl-alt toggle mouse and keyboard grab\n"
4296 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4301 DEFAULT_NETWORK_SCRIPT,
4302 DEFAULT_NETWORK_DOWN_SCRIPT,
4304 DEFAULT_GDBSTUB_PORT,
4309 #define HAS_ARG 0x0001
4312 #define DEF(option, opt_arg, opt_enum, opt_help) \
4314 #define DEFHEADING(text)
4315 #include "qemu-options.h"
4321 typedef struct QEMUOption {
4327 static const QEMUOption qemu_options[] = {
4328 { "h", 0, QEMU_OPTION_h },
4329 #define DEF(option, opt_arg, opt_enum, opt_help) \
4330 { option, opt_arg, opt_enum },
4331 #define DEFHEADING(text)
4332 #include "qemu-options.h"
4340 struct soundhw soundhw[] = {
4341 #ifdef HAS_AUDIO_CHOICE
4342 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4348 { .init_isa = pcspk_audio_init }
4355 "Creative Sound Blaster 16",
4358 { .init_isa = SB16_init }
4362 #ifdef CONFIG_CS4231A
4368 { .init_isa = cs4231a_init }
4376 "Yamaha YMF262 (OPL3)",
4378 "Yamaha YM3812 (OPL2)",
4382 { .init_isa = Adlib_init }
4389 "Gravis Ultrasound GF1",
4392 { .init_isa = GUS_init }
4399 "Intel 82801AA AC97 Audio",
4402 { .init_pci = ac97_init }
4406 #ifdef CONFIG_ES1370
4409 "ENSONIQ AudioPCI ES1370",
4412 { .init_pci = es1370_init }
4416 #endif /* HAS_AUDIO_CHOICE */
4418 { NULL, NULL, 0, 0, { NULL } }
4421 static void select_soundhw (const char *optarg)
4425 if (*optarg == '?') {
4428 printf ("Valid sound card names (comma separated):\n");
4429 for (c = soundhw; c->name; ++c) {
4430 printf ("%-11s %s\n", c->name, c->descr);
4432 printf ("\n-soundhw all will enable all of the above\n");
4433 exit (*optarg != '?');
4441 if (!strcmp (optarg, "all")) {
4442 for (c = soundhw; c->name; ++c) {
4450 e = strchr (p, ',');
4451 l = !e ? strlen (p) : (size_t) (e - p);
4453 for (c = soundhw; c->name; ++c) {
4454 if (!strncmp (c->name, p, l)) {
4463 "Unknown sound card name (too big to show)\n");
4466 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4471 p += l + (e != NULL);
4475 goto show_valid_cards;
4480 static void select_vgahw (const char *p)
4484 cirrus_vga_enabled = 0;
4485 std_vga_enabled = 0;
4488 if (strstart(p, "std", &opts)) {
4489 std_vga_enabled = 1;
4490 } else if (strstart(p, "cirrus", &opts)) {
4491 cirrus_vga_enabled = 1;
4492 } else if (strstart(p, "vmware", &opts)) {
4494 } else if (strstart(p, "xenfb", &opts)) {
4496 } else if (!strstart(p, "none", &opts)) {
4498 fprintf(stderr, "Unknown vga type: %s\n", p);
4502 const char *nextopt;
4504 if (strstart(opts, ",retrace=", &nextopt)) {
4506 if (strstart(opts, "dumb", &nextopt))
4507 vga_retrace_method = VGA_RETRACE_DUMB;
4508 else if (strstart(opts, "precise", &nextopt))
4509 vga_retrace_method = VGA_RETRACE_PRECISE;
4510 else goto invalid_vga;
4511 } else goto invalid_vga;
4517 static int balloon_parse(const char *arg)
4522 if (!strcmp(arg, "none")) {
4524 } else if (!strncmp(arg, "virtio", 6)) {
4526 if (arg[6] == ',') {
4528 if (get_param_value(buf, sizeof(buf), "addr", p)) {
4529 virtio_balloon_devaddr = strdup(buf);
4540 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4542 exit(STATUS_CONTROL_C_EXIT);
4547 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4551 if(strlen(str) != 36)
4554 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4555 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4556 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4562 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4568 #define MAX_NET_CLIENTS 32
4572 static void termsig_handler(int signal)
4574 qemu_system_shutdown_request();
4577 static void sigchld_handler(int signal)
4579 waitpid(-1, NULL, WNOHANG);
4582 static void sighandler_setup(void)
4584 struct sigaction act;
4586 memset(&act, 0, sizeof(act));
4587 act.sa_handler = termsig_handler;
4588 sigaction(SIGINT, &act, NULL);
4589 sigaction(SIGHUP, &act, NULL);
4590 sigaction(SIGTERM, &act, NULL);
4592 act.sa_handler = sigchld_handler;
4593 act.sa_flags = SA_NOCLDSTOP;
4594 sigaction(SIGCHLD, &act, NULL);
4600 /* Look for support files in the same directory as the executable. */
4601 static char *find_datadir(const char *argv0)
4607 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4614 while (p != buf && *p != '\\')
4617 if (access(buf, R_OK) == 0) {
4618 return qemu_strdup(buf);
4624 /* Find a likely location for support files using the location of the binary.
4625 For installed binaries this will be "$bindir/../share/qemu". When
4626 running from the build tree this will be "$bindir/../pc-bios". */
4627 #define SHARE_SUFFIX "/share/qemu"
4628 #define BUILD_SUFFIX "/pc-bios"
4629 static char *find_datadir(const char *argv0)
4639 #if defined(__linux__)
4642 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4648 #elif defined(__FreeBSD__)
4651 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4658 /* If we don't have any way of figuring out the actual executable
4659 location then try argv[0]. */
4664 p = realpath(argv0, p);
4672 max_len = strlen(dir) +
4673 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4674 res = qemu_mallocz(max_len);
4675 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4676 if (access(res, R_OK)) {
4677 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4678 if (access(res, R_OK)) {
4692 char *qemu_find_file(int type, const char *name)
4698 /* If name contains path separators then try it as a straight path. */
4699 if ((strchr(name, '/') || strchr(name, '\\'))
4700 && access(name, R_OK) == 0) {
4701 return strdup(name);
4704 case QEMU_FILE_TYPE_BIOS:
4707 case QEMU_FILE_TYPE_KEYMAP:
4708 subdir = "keymaps/";
4713 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4714 buf = qemu_mallocz(len);
4715 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4716 if (access(buf, R_OK)) {
4723 static int device_init_func(QemuOpts *opts, void *opaque)
4727 dev = qdev_device_add(opts);
4733 struct device_config {
4735 DEV_USB, /* -usbdevice */
4738 const char *cmdline;
4739 TAILQ_ENTRY(device_config) next;
4741 TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4743 static void add_device_config(int type, const char *cmdline)
4745 struct device_config *conf;
4747 conf = qemu_mallocz(sizeof(*conf));
4749 conf->cmdline = cmdline;
4750 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4753 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4755 struct device_config *conf;
4758 TAILQ_FOREACH(conf, &device_configs, next) {
4759 if (conf->type != type)
4761 rc = func(conf->cmdline);
4768 int main(int argc, char **argv, char **envp)
4770 const char *gdbstub_dev = NULL;
4771 uint32_t boot_devices_bitmap = 0;
4773 int snapshot, linux_boot, net_boot;
4774 const char *initrd_filename;
4775 const char *kernel_filename, *kernel_cmdline;
4776 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4778 DisplayChangeListener *dcl;
4779 int cyls, heads, secs, translation;
4780 const char *net_clients[MAX_NET_CLIENTS];
4782 QemuOpts *hda_opts = NULL, *opts;
4784 const char *r, *optarg;
4785 CharDriverState *monitor_hd = NULL;
4786 const char *monitor_device;
4787 const char *serial_devices[MAX_SERIAL_PORTS];
4788 int serial_device_index;
4789 const char *parallel_devices[MAX_PARALLEL_PORTS];
4790 int parallel_device_index;
4791 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4792 int virtio_console_index;
4793 const char *loadvm = NULL;
4794 QEMUMachine *machine;
4795 const char *cpu_model;
4800 const char *pid_file = NULL;
4801 const char *incoming = NULL;
4804 struct passwd *pwd = NULL;
4805 const char *chroot_dir = NULL;
4806 const char *run_as = NULL;
4809 int show_vnc_port = 0;
4811 qemu_cache_utils_init(envp);
4813 LIST_INIT (&vm_change_state_head);
4816 struct sigaction act;
4817 sigfillset(&act.sa_mask);
4819 act.sa_handler = SIG_IGN;
4820 sigaction(SIGPIPE, &act, NULL);
4823 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4824 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4825 QEMU to run on a single CPU */
4830 h = GetCurrentProcess();
4831 if (GetProcessAffinityMask(h, &mask, &smask)) {
4832 for(i = 0; i < 32; i++) {
4833 if (mask & (1 << i))
4838 SetProcessAffinityMask(h, mask);
4844 module_call_init(MODULE_INIT_MACHINE);
4845 machine = find_default_machine();
4847 initrd_filename = NULL;
4850 kernel_filename = NULL;
4851 kernel_cmdline = "";
4852 cyls = heads = secs = 0;
4853 translation = BIOS_ATA_TRANSLATION_AUTO;
4854 monitor_device = "vc:80Cx24C";
4856 serial_devices[0] = "vc:80Cx24C";
4857 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4858 serial_devices[i] = NULL;
4859 serial_device_index = 0;
4861 parallel_devices[0] = "vc:80Cx24C";
4862 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4863 parallel_devices[i] = NULL;
4864 parallel_device_index = 0;
4866 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4867 virtio_consoles[i] = NULL;
4868 virtio_console_index = 0;
4870 for (i = 0; i < MAX_NODES; i++) {
4872 node_cpumask[i] = 0;
4882 register_watchdogs();
4890 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4892 const QEMUOption *popt;
4895 /* Treat --foo the same as -foo. */
4898 popt = qemu_options;
4901 fprintf(stderr, "%s: invalid option -- '%s'\n",
4905 if (!strcmp(popt->name, r + 1))
4909 if (popt->flags & HAS_ARG) {
4910 if (optind >= argc) {
4911 fprintf(stderr, "%s: option '%s' requires an argument\n",
4915 optarg = argv[optind++];
4920 switch(popt->index) {
4922 machine = find_machine(optarg);
4925 printf("Supported machines are:\n");
4926 for(m = first_machine; m != NULL; m = m->next) {
4928 printf("%-10s %s (alias of %s)\n",
4929 m->alias, m->desc, m->name);
4930 printf("%-10s %s%s\n",
4932 m->is_default ? " (default)" : "");
4934 exit(*optarg != '?');
4937 case QEMU_OPTION_cpu:
4938 /* hw initialization will check this */
4939 if (*optarg == '?') {
4940 /* XXX: implement xxx_cpu_list for targets that still miss it */
4941 #if defined(cpu_list)
4942 cpu_list(stdout, &fprintf);
4949 case QEMU_OPTION_initrd:
4950 initrd_filename = optarg;
4952 case QEMU_OPTION_hda:
4954 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4956 hda_opts = drive_add(optarg, HD_ALIAS
4957 ",cyls=%d,heads=%d,secs=%d%s",
4958 0, cyls, heads, secs,
4959 translation == BIOS_ATA_TRANSLATION_LBA ?
4961 translation == BIOS_ATA_TRANSLATION_NONE ?
4962 ",trans=none" : "");
4964 case QEMU_OPTION_hdb:
4965 case QEMU_OPTION_hdc:
4966 case QEMU_OPTION_hdd:
4967 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4969 case QEMU_OPTION_drive:
4970 drive_add(NULL, "%s", optarg);
4972 case QEMU_OPTION_set:
4973 if (qemu_set_option(optarg) != 0)
4976 case QEMU_OPTION_mtdblock:
4977 drive_add(optarg, MTD_ALIAS);
4979 case QEMU_OPTION_sd:
4980 drive_add(optarg, SD_ALIAS);
4982 case QEMU_OPTION_pflash:
4983 drive_add(optarg, PFLASH_ALIAS);
4985 case QEMU_OPTION_snapshot:
4988 case QEMU_OPTION_hdachs:
4992 cyls = strtol(p, (char **)&p, 0);
4993 if (cyls < 1 || cyls > 16383)
4998 heads = strtol(p, (char **)&p, 0);
4999 if (heads < 1 || heads > 16)
5004 secs = strtol(p, (char **)&p, 0);
5005 if (secs < 1 || secs > 63)
5009 if (!strcmp(p, "none"))
5010 translation = BIOS_ATA_TRANSLATION_NONE;
5011 else if (!strcmp(p, "lba"))
5012 translation = BIOS_ATA_TRANSLATION_LBA;
5013 else if (!strcmp(p, "auto"))
5014 translation = BIOS_ATA_TRANSLATION_AUTO;
5017 } else if (*p != '\0') {
5019 fprintf(stderr, "qemu: invalid physical CHS format\n");
5022 if (hda_opts != NULL) {
5024 snprintf(num, sizeof(num), "%d", cyls);
5025 qemu_opt_set(hda_opts, "cyls", num);
5026 snprintf(num, sizeof(num), "%d", heads);
5027 qemu_opt_set(hda_opts, "heads", num);
5028 snprintf(num, sizeof(num), "%d", secs);
5029 qemu_opt_set(hda_opts, "secs", num);
5030 if (translation == BIOS_ATA_TRANSLATION_LBA)
5031 qemu_opt_set(hda_opts, "trans", "lba");
5032 if (translation == BIOS_ATA_TRANSLATION_NONE)
5033 qemu_opt_set(hda_opts, "trans", "none");
5037 case QEMU_OPTION_numa:
5038 if (nb_numa_nodes >= MAX_NODES) {
5039 fprintf(stderr, "qemu: too many NUMA nodes\n");
5044 case QEMU_OPTION_nographic:
5045 display_type = DT_NOGRAPHIC;
5047 #ifdef CONFIG_CURSES
5048 case QEMU_OPTION_curses:
5049 display_type = DT_CURSES;
5052 case QEMU_OPTION_portrait:
5055 case QEMU_OPTION_kernel:
5056 kernel_filename = optarg;
5058 case QEMU_OPTION_append:
5059 kernel_cmdline = optarg;
5061 case QEMU_OPTION_cdrom:
5062 drive_add(optarg, CDROM_ALIAS);
5064 case QEMU_OPTION_boot:
5066 static const char * const params[] = {
5067 "order", "once", "menu", NULL
5069 char buf[sizeof(boot_devices)];
5070 char *standard_boot_devices;
5073 if (!strchr(optarg, '=')) {
5075 pstrcpy(buf, sizeof(buf), optarg);
5076 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5078 "qemu: unknown boot parameter '%s' in '%s'\n",
5084 get_param_value(buf, sizeof(buf), "order", optarg)) {
5085 boot_devices_bitmap = parse_bootdevices(buf);
5086 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5089 if (get_param_value(buf, sizeof(buf),
5091 boot_devices_bitmap |= parse_bootdevices(buf);
5092 standard_boot_devices = qemu_strdup(boot_devices);
5093 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5094 qemu_register_reset(restore_boot_devices,
5095 standard_boot_devices);
5097 if (get_param_value(buf, sizeof(buf),
5099 if (!strcmp(buf, "on")) {
5101 } else if (!strcmp(buf, "off")) {
5105 "qemu: invalid option value '%s'\n",
5113 case QEMU_OPTION_fda:
5114 case QEMU_OPTION_fdb:
5115 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5118 case QEMU_OPTION_no_fd_bootchk:
5122 case QEMU_OPTION_net:
5123 if (nb_net_clients >= MAX_NET_CLIENTS) {
5124 fprintf(stderr, "qemu: too many network clients\n");
5127 net_clients[nb_net_clients] = optarg;
5131 case QEMU_OPTION_tftp:
5132 legacy_tftp_prefix = optarg;
5134 case QEMU_OPTION_bootp:
5135 legacy_bootp_filename = optarg;
5138 case QEMU_OPTION_smb:
5139 net_slirp_smb(optarg);
5142 case QEMU_OPTION_redir:
5143 net_slirp_redir(optarg);
5146 case QEMU_OPTION_bt:
5147 add_device_config(DEV_BT, optarg);
5150 case QEMU_OPTION_audio_help:
5154 case QEMU_OPTION_soundhw:
5155 select_soundhw (optarg);
5161 case QEMU_OPTION_version:
5165 case QEMU_OPTION_m: {
5169 value = strtoul(optarg, &ptr, 10);
5171 case 0: case 'M': case 'm':
5178 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5182 /* On 32-bit hosts, QEMU is limited by virtual address space */
5183 if (value > (2047 << 20)
5184 #ifndef CONFIG_KQEMU
5185 && HOST_LONG_BITS == 32
5188 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5191 if (value != (uint64_t)(ram_addr_t)value) {
5192 fprintf(stderr, "qemu: ram size too large\n");
5201 const CPULogItem *item;
5203 mask = cpu_str_to_log_mask(optarg);
5205 printf("Log items (comma separated):\n");
5206 for(item = cpu_log_items; item->mask != 0; item++) {
5207 printf("%-10s %s\n", item->name, item->help);
5215 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5217 case QEMU_OPTION_gdb:
5218 gdbstub_dev = optarg;
5223 case QEMU_OPTION_bios:
5226 case QEMU_OPTION_singlestep:
5234 keyboard_layout = optarg;
5237 case QEMU_OPTION_localtime:
5240 case QEMU_OPTION_vga:
5241 select_vgahw (optarg);
5243 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5249 w = strtol(p, (char **)&p, 10);
5252 fprintf(stderr, "qemu: invalid resolution or depth\n");
5258 h = strtol(p, (char **)&p, 10);
5263 depth = strtol(p, (char **)&p, 10);
5264 if (depth != 8 && depth != 15 && depth != 16 &&
5265 depth != 24 && depth != 32)
5267 } else if (*p == '\0') {
5268 depth = graphic_depth;
5275 graphic_depth = depth;
5279 case QEMU_OPTION_echr:
5282 term_escape_char = strtol(optarg, &r, 0);
5284 printf("Bad argument to echr\n");
5287 case QEMU_OPTION_monitor:
5288 monitor_device = optarg;
5290 case QEMU_OPTION_serial:
5291 if (serial_device_index >= MAX_SERIAL_PORTS) {
5292 fprintf(stderr, "qemu: too many serial ports\n");
5295 serial_devices[serial_device_index] = optarg;
5296 serial_device_index++;
5298 case QEMU_OPTION_watchdog:
5299 i = select_watchdog(optarg);
5301 exit (i == 1 ? 1 : 0);
5303 case QEMU_OPTION_watchdog_action:
5304 if (select_watchdog_action(optarg) == -1) {
5305 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5309 case QEMU_OPTION_virtiocon:
5310 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5311 fprintf(stderr, "qemu: too many virtio consoles\n");
5314 virtio_consoles[virtio_console_index] = optarg;
5315 virtio_console_index++;
5317 case QEMU_OPTION_parallel:
5318 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5319 fprintf(stderr, "qemu: too many parallel ports\n");
5322 parallel_devices[parallel_device_index] = optarg;
5323 parallel_device_index++;
5325 case QEMU_OPTION_loadvm:
5328 case QEMU_OPTION_full_screen:
5332 case QEMU_OPTION_no_frame:
5335 case QEMU_OPTION_alt_grab:
5338 case QEMU_OPTION_no_quit:
5341 case QEMU_OPTION_sdl:
5342 display_type = DT_SDL;
5345 case QEMU_OPTION_pidfile:
5349 case QEMU_OPTION_win2k_hack:
5350 win2k_install_hack = 1;
5352 case QEMU_OPTION_rtc_td_hack:
5355 case QEMU_OPTION_acpitable:
5356 if(acpi_table_add(optarg) < 0) {
5357 fprintf(stderr, "Wrong acpi table provided\n");
5361 case QEMU_OPTION_smbios:
5362 if(smbios_entry_add(optarg) < 0) {
5363 fprintf(stderr, "Wrong smbios provided\n");
5369 case QEMU_OPTION_enable_kqemu:
5372 case QEMU_OPTION_kernel_kqemu:
5377 case QEMU_OPTION_enable_kvm:
5384 case QEMU_OPTION_usb:
5387 case QEMU_OPTION_usbdevice:
5389 add_device_config(DEV_USB, optarg);
5391 case QEMU_OPTION_device:
5392 opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver");
5394 fprintf(stderr, "parse error: %s\n", optarg);
5398 case QEMU_OPTION_smp:
5402 smp_cpus = strtol(optarg, &p, 10);
5404 fprintf(stderr, "Invalid number of CPUs\n");
5409 if (get_param_value(option, 128, "maxcpus", p))
5410 max_cpus = strtol(option, NULL, 0);
5411 if (max_cpus < smp_cpus) {
5412 fprintf(stderr, "maxcpus must be equal to or greater than "
5416 if (max_cpus > 255) {
5417 fprintf(stderr, "Unsupported number of maxcpus\n");
5422 case QEMU_OPTION_vnc:
5423 display_type = DT_VNC;
5424 vnc_display = optarg;
5427 case QEMU_OPTION_no_acpi:
5430 case QEMU_OPTION_no_hpet:
5433 case QEMU_OPTION_balloon:
5434 if (balloon_parse(optarg) < 0) {
5435 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5440 case QEMU_OPTION_no_reboot:
5443 case QEMU_OPTION_no_shutdown:
5446 case QEMU_OPTION_show_cursor:
5449 case QEMU_OPTION_uuid:
5450 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5451 fprintf(stderr, "Fail to parse UUID string."
5452 " Wrong format.\n");
5457 case QEMU_OPTION_daemonize:
5461 case QEMU_OPTION_option_rom:
5462 if (nb_option_roms >= MAX_OPTION_ROMS) {
5463 fprintf(stderr, "Too many option ROMs\n");
5466 option_rom[nb_option_roms] = optarg;
5469 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5470 case QEMU_OPTION_semihosting:
5471 semihosting_enabled = 1;
5474 case QEMU_OPTION_name:
5475 qemu_name = qemu_strdup(optarg);
5477 char *p = strchr(qemu_name, ',');
5480 if (strncmp(p, "process=", 8)) {
5481 fprintf(stderr, "Unknown subargument %s to -name", p);
5489 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5490 case QEMU_OPTION_prom_env:
5491 if (nb_prom_envs >= MAX_PROM_ENVS) {
5492 fprintf(stderr, "Too many prom variables\n");
5495 prom_envs[nb_prom_envs] = optarg;
5500 case QEMU_OPTION_old_param:
5504 case QEMU_OPTION_clock:
5505 configure_alarms(optarg);
5507 case QEMU_OPTION_startdate:
5510 time_t rtc_start_date;
5511 if (!strcmp(optarg, "now")) {
5512 rtc_date_offset = -1;
5514 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5522 } else if (sscanf(optarg, "%d-%d-%d",
5525 &tm.tm_mday) == 3) {
5534 rtc_start_date = mktimegm(&tm);
5535 if (rtc_start_date == -1) {
5537 fprintf(stderr, "Invalid date format. Valid format are:\n"
5538 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5541 rtc_date_offset = time(NULL) - rtc_start_date;
5545 case QEMU_OPTION_tb_size:
5546 tb_size = strtol(optarg, NULL, 0);
5550 case QEMU_OPTION_icount:
5552 if (strcmp(optarg, "auto") == 0) {
5553 icount_time_shift = -1;
5555 icount_time_shift = strtol(optarg, NULL, 0);
5558 case QEMU_OPTION_incoming:
5562 case QEMU_OPTION_chroot:
5563 chroot_dir = optarg;
5565 case QEMU_OPTION_runas:
5570 case QEMU_OPTION_xen_domid:
5571 xen_domid = atoi(optarg);
5573 case QEMU_OPTION_xen_create:
5574 xen_mode = XEN_CREATE;
5576 case QEMU_OPTION_xen_attach:
5577 xen_mode = XEN_ATTACH;
5584 /* If no data_dir is specified then try to find it relative to the
5587 data_dir = find_datadir(argv[0]);
5589 /* If all else fails use the install patch specified when building. */
5591 data_dir = CONFIG_QEMU_SHAREDIR;
5594 #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU)
5595 if (kvm_allowed && kqemu_allowed) {
5597 "You can not enable both KVM and kqemu at the same time\n");
5603 * Default to max_cpus = smp_cpus, in case the user doesn't
5604 * specify a max_cpus value.
5607 max_cpus = smp_cpus;
5609 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5610 if (smp_cpus > machine->max_cpus) {
5611 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5612 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5617 if (display_type == DT_NOGRAPHIC) {
5618 if (serial_device_index == 0)
5619 serial_devices[0] = "stdio";
5620 if (parallel_device_index == 0)
5621 parallel_devices[0] = "null";
5622 if (strncmp(monitor_device, "vc", 2) == 0)
5623 monitor_device = "stdio";
5630 if (pipe(fds) == -1)
5641 len = read(fds[0], &status, 1);
5642 if (len == -1 && (errno == EINTR))
5647 else if (status == 1) {
5648 fprintf(stderr, "Could not acquire pidfile\n");
5665 signal(SIGTSTP, SIG_IGN);
5666 signal(SIGTTOU, SIG_IGN);
5667 signal(SIGTTIN, SIG_IGN);
5670 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5673 write(fds[1], &status, 1);
5675 fprintf(stderr, "Could not acquire pid file\n");
5684 if (qemu_init_main_loop()) {
5685 fprintf(stderr, "qemu_init_main_loop failed\n");
5688 linux_boot = (kernel_filename != NULL);
5690 if (!linux_boot && *kernel_cmdline != '\0') {
5691 fprintf(stderr, "-append only allowed with -kernel option\n");
5695 if (!linux_boot && initrd_filename != NULL) {
5696 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5701 /* Win32 doesn't support line-buffering and requires size >= 2 */
5702 setvbuf(stdout, NULL, _IOLBF, 0);
5706 if (init_timer_alarm() < 0) {
5707 fprintf(stderr, "could not initialize alarm timer\n");
5710 if (use_icount && icount_time_shift < 0) {
5712 /* 125MIPS seems a reasonable initial guess at the guest speed.
5713 It will be corrected fairly quickly anyway. */
5714 icount_time_shift = 3;
5715 init_icount_adjust();
5722 /* init network clients */
5723 if (nb_net_clients == 0) {
5724 /* if no clients, we use a default config */
5725 net_clients[nb_net_clients++] = "nic";
5727 net_clients[nb_net_clients++] = "user";
5731 for(i = 0;i < nb_net_clients; i++) {
5732 if (net_client_parse(net_clients[i]) < 0)
5736 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5737 net_set_boot_mask(net_boot);
5741 /* init the bluetooth world */
5742 if (foreach_device_config(DEV_BT, bt_parse))
5745 /* init the memory */
5747 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5750 /* FIXME: This is a nasty hack because kqemu can't cope with dynamic
5751 guest ram allocation. It needs to go away. */
5752 if (kqemu_allowed) {
5753 kqemu_phys_ram_size = ram_size + 8 * 1024 * 1024 + 4 * 1024 * 1024;
5754 kqemu_phys_ram_base = qemu_vmalloc(kqemu_phys_ram_size);
5755 if (!kqemu_phys_ram_base) {
5756 fprintf(stderr, "Could not allocate physical memory\n");
5762 /* init the dynamic translator */
5763 cpu_exec_init_all(tb_size * 1024 * 1024);
5767 /* we always create the cdrom drive, even if no disk is there */
5768 drive_add(NULL, CDROM_ALIAS);
5770 /* we always create at least one floppy */
5771 drive_add(NULL, FD_ALIAS, 0);
5773 /* we always create one sd slot, even if no card is in it */
5774 drive_add(NULL, SD_ALIAS);
5776 /* open the virtual block devices */
5778 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5779 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5782 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
5783 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5786 /* must be after terminal init, SDL library changes signal handlers */
5790 /* Maintain compatibility with multiple stdio monitors */
5791 if (!strcmp(monitor_device,"stdio")) {
5792 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5793 const char *devname = serial_devices[i];
5794 if (devname && !strcmp(devname,"mon:stdio")) {
5795 monitor_device = NULL;
5797 } else if (devname && !strcmp(devname,"stdio")) {
5798 monitor_device = NULL;
5799 serial_devices[i] = "mon:stdio";
5805 if (nb_numa_nodes > 0) {
5808 if (nb_numa_nodes > smp_cpus) {
5809 nb_numa_nodes = smp_cpus;
5812 /* If no memory size if given for any node, assume the default case
5813 * and distribute the available memory equally across all nodes
5815 for (i = 0; i < nb_numa_nodes; i++) {
5816 if (node_mem[i] != 0)
5819 if (i == nb_numa_nodes) {
5820 uint64_t usedmem = 0;
5822 /* On Linux, the each node's border has to be 8MB aligned,
5823 * the final node gets the rest.
5825 for (i = 0; i < nb_numa_nodes - 1; i++) {
5826 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5827 usedmem += node_mem[i];
5829 node_mem[i] = ram_size - usedmem;
5832 for (i = 0; i < nb_numa_nodes; i++) {
5833 if (node_cpumask[i] != 0)
5836 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5837 * must cope with this anyway, because there are BIOSes out there in
5838 * real machines which also use this scheme.
5840 if (i == nb_numa_nodes) {
5841 for (i = 0; i < smp_cpus; i++) {
5842 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5847 if (kvm_enabled()) {
5850 ret = kvm_init(smp_cpus);
5852 fprintf(stderr, "failed to initialize KVM\n");
5857 if (monitor_device) {
5858 monitor_hd = qemu_chr_open("monitor", monitor_device, NULL);
5860 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
5865 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5866 const char *devname = serial_devices[i];
5867 if (devname && strcmp(devname, "none")) {
5869 snprintf(label, sizeof(label), "serial%d", i);
5870 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5871 if (!serial_hds[i]) {
5872 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5879 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5880 const char *devname = parallel_devices[i];
5881 if (devname && strcmp(devname, "none")) {
5883 snprintf(label, sizeof(label), "parallel%d", i);
5884 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5885 if (!parallel_hds[i]) {
5886 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5893 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5894 const char *devname = virtio_consoles[i];
5895 if (devname && strcmp(devname, "none")) {
5897 snprintf(label, sizeof(label), "virtcon%d", i);
5898 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5899 if (!virtcon_hds[i]) {
5900 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5907 module_call_init(MODULE_INIT_DEVICE);
5909 if (machine->compat_props) {
5910 qdev_prop_register_compat(machine->compat_props);
5912 machine->init(ram_size, boot_devices,
5913 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5916 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5917 for (i = 0; i < nb_numa_nodes; i++) {
5918 if (node_cpumask[i] & (1 << env->cpu_index)) {
5924 current_machine = machine;
5926 /* init USB devices */
5928 foreach_device_config(DEV_USB, usb_parse);
5931 /* init generic devices */
5932 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5936 dumb_display_init();
5937 /* just use the first displaystate for the moment */
5940 if (display_type == DT_DEFAULT) {
5941 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5942 display_type = DT_SDL;
5944 display_type = DT_VNC;
5945 vnc_display = "localhost:0,to=99";
5951 switch (display_type) {
5954 #if defined(CONFIG_CURSES)
5956 curses_display_init(ds, full_screen);
5959 #if defined(CONFIG_SDL)
5961 sdl_display_init(ds, full_screen, no_frame);
5963 #elif defined(CONFIG_COCOA)
5965 cocoa_display_init(ds, full_screen);
5969 vnc_display_init(ds);
5970 if (vnc_display_open(ds, vnc_display) < 0)
5973 if (show_vnc_port) {
5974 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5982 dcl = ds->listeners;
5983 while (dcl != NULL) {
5984 if (dcl->dpy_refresh != NULL) {
5985 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5986 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5991 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5992 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5993 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5996 text_consoles_set_display(display_state);
5997 qemu_chr_initial_reset();
5999 if (monitor_device && monitor_hd)
6000 monitor_init(monitor_hd, MONITOR_USE_READLINE | MONITOR_IS_DEFAULT);
6002 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
6003 const char *devname = serial_devices[i];
6004 if (devname && strcmp(devname, "none")) {
6005 if (strstart(devname, "vc", 0))
6006 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
6010 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
6011 const char *devname = parallel_devices[i];
6012 if (devname && strcmp(devname, "none")) {
6013 if (strstart(devname, "vc", 0))
6014 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
6018 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
6019 const char *devname = virtio_consoles[i];
6020 if (virtcon_hds[i] && devname) {
6021 if (strstart(devname, "vc", 0))
6022 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
6026 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6027 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6033 do_loadvm(cur_mon, loadvm);
6037 qemu_start_incoming_migration(incoming);
6049 len = write(fds[1], &status, 1);
6050 if (len == -1 && (errno == EINTR))
6057 TFR(fd = open("/dev/null", O_RDWR));
6063 pwd = getpwnam(run_as);
6065 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6071 if (chroot(chroot_dir) < 0) {
6072 fprintf(stderr, "chroot failed\n");
6079 if (setgid(pwd->pw_gid) < 0) {
6080 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6083 if (setuid(pwd->pw_uid) < 0) {
6084 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6087 if (setuid(0) != -1) {
6088 fprintf(stderr, "Dropping privileges failed\n");