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 HOST_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>
112 #include <sys/timeb.h>
113 #include <mmsystem.h>
114 #define getopt_long_only getopt_long
115 #define memalign(align, size) malloc(size)
119 #if defined(__APPLE__) || defined(main)
121 int qemu_main(int argc, char **argv, char **envp);
122 int main(int argc, char **argv)
124 return qemu_main(argc, argv, NULL);
127 #define main qemu_main
129 #endif /* CONFIG_SDL */
133 #define main qemu_main
134 #endif /* CONFIG_COCOA */
137 #include "hw/boards.h"
139 #include "hw/pcmcia.h"
141 #include "hw/audiodev.h"
145 #include "hw/watchdog.h"
146 #include "hw/smbios.h"
155 #include "qemu-timer.h"
156 #include "qemu-char.h"
157 #include "cache-utils.h"
160 #include "audio/audio.h"
161 #include "migration.h"
164 #include "qemu-option.h"
168 #include "exec-all.h"
170 #include "qemu_socket.h"
172 #include "slirp/libslirp.h"
175 //#define DEBUG_SLIRP
177 #define DEFAULT_RAM_SIZE 128
179 static const char *data_dir;
180 const char *bios_name = NULL;
181 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
182 to store the VM snapshots */
183 struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives);
184 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
185 static DisplayState *display_state;
186 DisplayType display_type = DT_DEFAULT;
187 const char* keyboard_layout = NULL;
188 int64_t ticks_per_sec;
191 NICInfo nd_table[MAX_NICS];
193 static int autostart;
194 static int rtc_utc = 1;
195 static int rtc_date_offset = -1; /* -1 means no change */
196 int cirrus_vga_enabled = 1;
197 int std_vga_enabled = 0;
198 int vmsvga_enabled = 0;
199 int xenfb_enabled = 0;
201 int graphic_width = 1024;
202 int graphic_height = 768;
203 int graphic_depth = 8;
205 int graphic_width = 800;
206 int graphic_height = 600;
207 int graphic_depth = 15;
209 static int full_screen = 0;
211 static int no_frame = 0;
214 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
215 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
216 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
218 int win2k_install_hack = 0;
224 const char *vnc_display;
225 int acpi_enabled = 1;
227 int virtio_balloon = 1;
228 const char *virtio_balloon_devaddr;
233 int graphic_rotate = 0;
237 WatchdogTimerModel *watchdog = NULL;
238 int watchdog_action = WDT_RESET;
239 const char *option_rom[MAX_OPTION_ROMS];
241 int semihosting_enabled = 0;
245 const char *qemu_name;
247 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
248 unsigned int nb_prom_envs = 0;
249 const char *prom_envs[MAX_PROM_ENVS];
252 struct drive_opt drives_opt[MAX_DRIVES];
256 uint64_t node_mem[MAX_NODES];
257 uint64_t node_cpumask[MAX_NODES];
259 static CPUState *cur_cpu;
260 static CPUState *next_cpu;
261 static int timer_alarm_pending = 1;
262 /* Conversion factor from emulated instructions to virtual clock ticks. */
263 static int icount_time_shift;
264 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
265 #define MAX_ICOUNT_SHIFT 10
266 /* Compensate for varying guest execution speed. */
267 static int64_t qemu_icount_bias;
268 static QEMUTimer *icount_rt_timer;
269 static QEMUTimer *icount_vm_timer;
270 static QEMUTimer *nographic_timer;
272 uint8_t qemu_uuid[16];
274 static QEMUBootSetHandler *boot_set_handler;
275 static void *boot_set_opaque;
277 /***********************************************************/
278 /* x86 ISA bus support */
280 target_phys_addr_t isa_mem_base = 0;
283 /***********************************************************/
284 void hw_error(const char *fmt, ...)
290 fprintf(stderr, "qemu: hardware error: ");
291 vfprintf(stderr, fmt, ap);
292 fprintf(stderr, "\n");
293 for(env = first_cpu; env != NULL; env = env->next_cpu) {
294 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
296 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
298 cpu_dump_state(env, stderr, fprintf, 0);
305 static void set_proc_name(const char *s)
311 name[sizeof(name) - 1] = 0;
312 strncpy(name, s, sizeof(name));
313 /* Could rewrite argv[0] too, but that's a bit more complicated.
314 This simple way is enough for `top'. */
315 prctl(PR_SET_NAME, name);
322 static QEMUBalloonEvent *qemu_balloon_event;
323 void *qemu_balloon_event_opaque;
325 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
327 qemu_balloon_event = func;
328 qemu_balloon_event_opaque = opaque;
331 void qemu_balloon(ram_addr_t target)
333 if (qemu_balloon_event)
334 qemu_balloon_event(qemu_balloon_event_opaque, target);
337 ram_addr_t qemu_balloon_status(void)
339 if (qemu_balloon_event)
340 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
344 /***********************************************************/
347 static QEMUPutKBDEvent *qemu_put_kbd_event;
348 static void *qemu_put_kbd_event_opaque;
349 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
350 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
352 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
354 qemu_put_kbd_event_opaque = opaque;
355 qemu_put_kbd_event = func;
358 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
359 void *opaque, int absolute,
362 QEMUPutMouseEntry *s, *cursor;
364 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
366 s->qemu_put_mouse_event = func;
367 s->qemu_put_mouse_event_opaque = opaque;
368 s->qemu_put_mouse_event_absolute = absolute;
369 s->qemu_put_mouse_event_name = qemu_strdup(name);
372 if (!qemu_put_mouse_event_head) {
373 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
377 cursor = qemu_put_mouse_event_head;
378 while (cursor->next != NULL)
379 cursor = cursor->next;
382 qemu_put_mouse_event_current = s;
387 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
389 QEMUPutMouseEntry *prev = NULL, *cursor;
391 if (!qemu_put_mouse_event_head || entry == NULL)
394 cursor = qemu_put_mouse_event_head;
395 while (cursor != NULL && cursor != entry) {
397 cursor = cursor->next;
400 if (cursor == NULL) // does not exist or list empty
402 else if (prev == NULL) { // entry is head
403 qemu_put_mouse_event_head = cursor->next;
404 if (qemu_put_mouse_event_current == entry)
405 qemu_put_mouse_event_current = cursor->next;
406 qemu_free(entry->qemu_put_mouse_event_name);
411 prev->next = entry->next;
413 if (qemu_put_mouse_event_current == entry)
414 qemu_put_mouse_event_current = prev;
416 qemu_free(entry->qemu_put_mouse_event_name);
420 void kbd_put_keycode(int keycode)
422 if (qemu_put_kbd_event) {
423 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
427 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
429 QEMUPutMouseEvent *mouse_event;
430 void *mouse_event_opaque;
433 if (!qemu_put_mouse_event_current) {
438 qemu_put_mouse_event_current->qemu_put_mouse_event;
440 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
443 if (graphic_rotate) {
444 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
447 width = graphic_width - 1;
448 mouse_event(mouse_event_opaque,
449 width - dy, dx, dz, buttons_state);
451 mouse_event(mouse_event_opaque,
452 dx, dy, dz, buttons_state);
456 int kbd_mouse_is_absolute(void)
458 if (!qemu_put_mouse_event_current)
461 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
464 void do_info_mice(Monitor *mon)
466 QEMUPutMouseEntry *cursor;
469 if (!qemu_put_mouse_event_head) {
470 monitor_printf(mon, "No mouse devices connected\n");
474 monitor_printf(mon, "Mouse devices available:\n");
475 cursor = qemu_put_mouse_event_head;
476 while (cursor != NULL) {
477 monitor_printf(mon, "%c Mouse #%d: %s\n",
478 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
479 index, cursor->qemu_put_mouse_event_name);
481 cursor = cursor->next;
485 void do_mouse_set(Monitor *mon, int index)
487 QEMUPutMouseEntry *cursor;
490 if (!qemu_put_mouse_event_head) {
491 monitor_printf(mon, "No mouse devices connected\n");
495 cursor = qemu_put_mouse_event_head;
496 while (cursor != NULL && index != i) {
498 cursor = cursor->next;
502 qemu_put_mouse_event_current = cursor;
504 monitor_printf(mon, "Mouse at given index not found\n");
507 /* compute with 96 bit intermediate result: (a*b)/c */
508 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
513 #ifdef WORDS_BIGENDIAN
523 rl = (uint64_t)u.l.low * (uint64_t)b;
524 rh = (uint64_t)u.l.high * (uint64_t)b;
527 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
531 /***********************************************************/
532 /* real time host monotonic timer */
534 #define QEMU_TIMER_BASE 1000000000LL
538 static int64_t clock_freq;
540 static void init_get_clock(void)
544 ret = QueryPerformanceFrequency(&freq);
546 fprintf(stderr, "Could not calibrate ticks\n");
549 clock_freq = freq.QuadPart;
552 static int64_t get_clock(void)
555 QueryPerformanceCounter(&ti);
556 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
561 static int use_rt_clock;
563 static void init_get_clock(void)
566 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
567 || defined(__DragonFly__)
570 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
577 static int64_t get_clock(void)
579 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
580 || defined(__DragonFly__)
583 clock_gettime(CLOCK_MONOTONIC, &ts);
584 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
588 /* XXX: using gettimeofday leads to problems if the date
589 changes, so it should be avoided. */
591 gettimeofday(&tv, NULL);
592 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
597 /* Return the virtual CPU time, based on the instruction counter. */
598 static int64_t cpu_get_icount(void)
601 CPUState *env = cpu_single_env;;
602 icount = qemu_icount;
605 fprintf(stderr, "Bad clock read\n");
606 icount -= (env->icount_decr.u16.low + env->icount_extra);
608 return qemu_icount_bias + (icount << icount_time_shift);
611 /***********************************************************/
612 /* guest cycle counter */
614 static int64_t cpu_ticks_prev;
615 static int64_t cpu_ticks_offset;
616 static int64_t cpu_clock_offset;
617 static int cpu_ticks_enabled;
619 /* return the host CPU cycle counter and handle stop/restart */
620 int64_t cpu_get_ticks(void)
623 return cpu_get_icount();
625 if (!cpu_ticks_enabled) {
626 return cpu_ticks_offset;
629 ticks = cpu_get_real_ticks();
630 if (cpu_ticks_prev > ticks) {
631 /* Note: non increasing ticks may happen if the host uses
633 cpu_ticks_offset += cpu_ticks_prev - ticks;
635 cpu_ticks_prev = ticks;
636 return ticks + cpu_ticks_offset;
640 /* return the host CPU monotonic timer and handle stop/restart */
641 static int64_t cpu_get_clock(void)
644 if (!cpu_ticks_enabled) {
645 return cpu_clock_offset;
648 return ti + cpu_clock_offset;
652 /* enable cpu_get_ticks() */
653 void cpu_enable_ticks(void)
655 if (!cpu_ticks_enabled) {
656 cpu_ticks_offset -= cpu_get_real_ticks();
657 cpu_clock_offset -= get_clock();
658 cpu_ticks_enabled = 1;
662 /* disable cpu_get_ticks() : the clock is stopped. You must not call
663 cpu_get_ticks() after that. */
664 void cpu_disable_ticks(void)
666 if (cpu_ticks_enabled) {
667 cpu_ticks_offset = cpu_get_ticks();
668 cpu_clock_offset = cpu_get_clock();
669 cpu_ticks_enabled = 0;
673 /***********************************************************/
676 #define QEMU_TIMER_REALTIME 0
677 #define QEMU_TIMER_VIRTUAL 1
681 /* XXX: add frequency */
689 struct QEMUTimer *next;
692 struct qemu_alarm_timer {
696 int (*start)(struct qemu_alarm_timer *t);
697 void (*stop)(struct qemu_alarm_timer *t);
698 void (*rearm)(struct qemu_alarm_timer *t);
702 #define ALARM_FLAG_DYNTICKS 0x1
703 #define ALARM_FLAG_EXPIRED 0x2
705 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
707 return t && (t->flags & ALARM_FLAG_DYNTICKS);
710 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
712 if (!alarm_has_dynticks(t))
718 /* TODO: MIN_TIMER_REARM_US should be optimized */
719 #define MIN_TIMER_REARM_US 250
721 static struct qemu_alarm_timer *alarm_timer;
725 struct qemu_alarm_win32 {
728 } alarm_win32_data = {0, -1};
730 static int win32_start_timer(struct qemu_alarm_timer *t);
731 static void win32_stop_timer(struct qemu_alarm_timer *t);
732 static void win32_rearm_timer(struct qemu_alarm_timer *t);
736 static int unix_start_timer(struct qemu_alarm_timer *t);
737 static void unix_stop_timer(struct qemu_alarm_timer *t);
741 static int dynticks_start_timer(struct qemu_alarm_timer *t);
742 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
743 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
745 static int hpet_start_timer(struct qemu_alarm_timer *t);
746 static void hpet_stop_timer(struct qemu_alarm_timer *t);
748 static int rtc_start_timer(struct qemu_alarm_timer *t);
749 static void rtc_stop_timer(struct qemu_alarm_timer *t);
751 #endif /* __linux__ */
755 /* Correlation between real and virtual time is always going to be
756 fairly approximate, so ignore small variation.
757 When the guest is idle real and virtual time will be aligned in
759 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
761 static void icount_adjust(void)
766 static int64_t last_delta;
767 /* If the VM is not running, then do nothing. */
771 cur_time = cpu_get_clock();
772 cur_icount = qemu_get_clock(vm_clock);
773 delta = cur_icount - cur_time;
774 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
776 && last_delta + ICOUNT_WOBBLE < delta * 2
777 && icount_time_shift > 0) {
778 /* The guest is getting too far ahead. Slow time down. */
782 && last_delta - ICOUNT_WOBBLE > delta * 2
783 && icount_time_shift < MAX_ICOUNT_SHIFT) {
784 /* The guest is getting too far behind. Speed time up. */
788 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
791 static void icount_adjust_rt(void * opaque)
793 qemu_mod_timer(icount_rt_timer,
794 qemu_get_clock(rt_clock) + 1000);
798 static void icount_adjust_vm(void * opaque)
800 qemu_mod_timer(icount_vm_timer,
801 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
805 static void init_icount_adjust(void)
807 /* Have both realtime and virtual time triggers for speed adjustment.
808 The realtime trigger catches emulated time passing too slowly,
809 the virtual time trigger catches emulated time passing too fast.
810 Realtime triggers occur even when idle, so use them less frequently
812 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
813 qemu_mod_timer(icount_rt_timer,
814 qemu_get_clock(rt_clock) + 1000);
815 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
816 qemu_mod_timer(icount_vm_timer,
817 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
820 static struct qemu_alarm_timer alarm_timers[] = {
823 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
824 dynticks_stop_timer, dynticks_rearm_timer, NULL},
825 /* HPET - if available - is preferred */
826 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
827 /* ...otherwise try RTC */
828 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
830 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
832 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
833 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
834 {"win32", 0, win32_start_timer,
835 win32_stop_timer, NULL, &alarm_win32_data},
840 static void show_available_alarms(void)
844 printf("Available alarm timers, in order of precedence:\n");
845 for (i = 0; alarm_timers[i].name; i++)
846 printf("%s\n", alarm_timers[i].name);
849 static void configure_alarms(char const *opt)
853 int count = ARRAY_SIZE(alarm_timers) - 1;
856 struct qemu_alarm_timer tmp;
858 if (!strcmp(opt, "?")) {
859 show_available_alarms();
865 /* Reorder the array */
866 name = strtok(arg, ",");
868 for (i = 0; i < count && alarm_timers[i].name; i++) {
869 if (!strcmp(alarm_timers[i].name, name))
874 fprintf(stderr, "Unknown clock %s\n", name);
883 tmp = alarm_timers[i];
884 alarm_timers[i] = alarm_timers[cur];
885 alarm_timers[cur] = tmp;
889 name = strtok(NULL, ",");
895 /* Disable remaining timers */
896 for (i = cur; i < count; i++)
897 alarm_timers[i].name = NULL;
899 show_available_alarms();
907 static QEMUTimer *active_timers[2];
909 static QEMUClock *qemu_new_clock(int type)
912 clock = qemu_mallocz(sizeof(QEMUClock));
917 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
921 ts = qemu_mallocz(sizeof(QEMUTimer));
928 void qemu_free_timer(QEMUTimer *ts)
933 /* stop a timer, but do not dealloc it */
934 void qemu_del_timer(QEMUTimer *ts)
938 /* NOTE: this code must be signal safe because
939 qemu_timer_expired() can be called from a signal. */
940 pt = &active_timers[ts->clock->type];
953 /* modify the current timer so that it will be fired when current_time
954 >= expire_time. The corresponding callback will be called. */
955 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
961 /* add the timer in the sorted list */
962 /* NOTE: this code must be signal safe because
963 qemu_timer_expired() can be called from a signal. */
964 pt = &active_timers[ts->clock->type];
969 if (t->expire_time > expire_time)
973 ts->expire_time = expire_time;
977 /* Rearm if necessary */
978 if (pt == &active_timers[ts->clock->type]) {
979 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
980 qemu_rearm_alarm_timer(alarm_timer);
982 /* Interrupt execution to force deadline recalculation. */
988 int qemu_timer_pending(QEMUTimer *ts)
991 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
998 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1002 return (timer_head->expire_time <= current_time);
1005 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1011 if (!ts || ts->expire_time > current_time)
1013 /* remove timer from the list before calling the callback */
1014 *ptimer_head = ts->next;
1017 /* run the callback (the timer list can be modified) */
1022 int64_t qemu_get_clock(QEMUClock *clock)
1024 switch(clock->type) {
1025 case QEMU_TIMER_REALTIME:
1026 return get_clock() / 1000000;
1028 case QEMU_TIMER_VIRTUAL:
1030 return cpu_get_icount();
1032 return cpu_get_clock();
1037 static void init_timers(void)
1040 ticks_per_sec = QEMU_TIMER_BASE;
1041 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1042 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1046 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1048 uint64_t expire_time;
1050 if (qemu_timer_pending(ts)) {
1051 expire_time = ts->expire_time;
1055 qemu_put_be64(f, expire_time);
1058 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1060 uint64_t expire_time;
1062 expire_time = qemu_get_be64(f);
1063 if (expire_time != -1) {
1064 qemu_mod_timer(ts, expire_time);
1070 static void timer_save(QEMUFile *f, void *opaque)
1072 if (cpu_ticks_enabled) {
1073 hw_error("cannot save state if virtual timers are running");
1075 qemu_put_be64(f, cpu_ticks_offset);
1076 qemu_put_be64(f, ticks_per_sec);
1077 qemu_put_be64(f, cpu_clock_offset);
1080 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1082 if (version_id != 1 && version_id != 2)
1084 if (cpu_ticks_enabled) {
1087 cpu_ticks_offset=qemu_get_be64(f);
1088 ticks_per_sec=qemu_get_be64(f);
1089 if (version_id == 2) {
1090 cpu_clock_offset=qemu_get_be64(f);
1095 static void qemu_event_increment(void);
1098 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1099 DWORD_PTR dwUser, DWORD_PTR dw1,
1102 static void host_alarm_handler(int host_signum)
1106 #define DISP_FREQ 1000
1108 static int64_t delta_min = INT64_MAX;
1109 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1111 ti = qemu_get_clock(vm_clock);
1112 if (last_clock != 0) {
1113 delta = ti - last_clock;
1114 if (delta < delta_min)
1116 if (delta > delta_max)
1119 if (++count == DISP_FREQ) {
1120 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1121 muldiv64(delta_min, 1000000, ticks_per_sec),
1122 muldiv64(delta_max, 1000000, ticks_per_sec),
1123 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1124 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1126 delta_min = INT64_MAX;
1134 if (alarm_has_dynticks(alarm_timer) ||
1136 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1137 qemu_get_clock(vm_clock))) ||
1138 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1139 qemu_get_clock(rt_clock))) {
1140 qemu_event_increment();
1141 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1143 #ifndef CONFIG_IOTHREAD
1145 /* stop the currently executing cpu because a timer occured */
1148 if (next_cpu->kqemu_enabled) {
1149 kqemu_cpu_interrupt(next_cpu);
1154 timer_alarm_pending = 1;
1155 qemu_notify_event();
1159 static int64_t qemu_next_deadline(void)
1163 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1164 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1165 qemu_get_clock(vm_clock);
1167 /* To avoid problems with overflow limit this to 2^32. */
1177 #if defined(__linux__) || defined(_WIN32)
1178 static uint64_t qemu_next_deadline_dyntick(void)
1186 delta = (qemu_next_deadline() + 999) / 1000;
1188 if (active_timers[QEMU_TIMER_REALTIME]) {
1189 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1190 qemu_get_clock(rt_clock))*1000;
1191 if (rtdelta < delta)
1195 if (delta < MIN_TIMER_REARM_US)
1196 delta = MIN_TIMER_REARM_US;
1204 /* Sets a specific flag */
1205 static int fcntl_setfl(int fd, int flag)
1209 flags = fcntl(fd, F_GETFL);
1213 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1219 #if defined(__linux__)
1221 #define RTC_FREQ 1024
1223 static void enable_sigio_timer(int fd)
1225 struct sigaction act;
1228 sigfillset(&act.sa_mask);
1230 act.sa_handler = host_alarm_handler;
1232 sigaction(SIGIO, &act, NULL);
1233 fcntl_setfl(fd, O_ASYNC);
1234 fcntl(fd, F_SETOWN, getpid());
1237 static int hpet_start_timer(struct qemu_alarm_timer *t)
1239 struct hpet_info info;
1242 fd = open("/dev/hpet", O_RDONLY);
1247 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1249 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1250 "error, but for better emulation accuracy type:\n"
1251 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1255 /* Check capabilities */
1256 r = ioctl(fd, HPET_INFO, &info);
1260 /* Enable periodic mode */
1261 r = ioctl(fd, HPET_EPI, 0);
1262 if (info.hi_flags && (r < 0))
1265 /* Enable interrupt */
1266 r = ioctl(fd, HPET_IE_ON, 0);
1270 enable_sigio_timer(fd);
1271 t->priv = (void *)(long)fd;
1279 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1281 int fd = (long)t->priv;
1286 static int rtc_start_timer(struct qemu_alarm_timer *t)
1289 unsigned long current_rtc_freq = 0;
1291 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1294 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
1295 if (current_rtc_freq != RTC_FREQ &&
1296 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1297 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1298 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1299 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1302 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1308 enable_sigio_timer(rtc_fd);
1310 t->priv = (void *)(long)rtc_fd;
1315 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1317 int rtc_fd = (long)t->priv;
1322 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1326 struct sigaction act;
1328 sigfillset(&act.sa_mask);
1330 act.sa_handler = host_alarm_handler;
1332 sigaction(SIGALRM, &act, NULL);
1335 * Initialize ev struct to 0 to avoid valgrind complaining
1336 * about uninitialized data in timer_create call
1338 memset(&ev, 0, sizeof(ev));
1339 ev.sigev_value.sival_int = 0;
1340 ev.sigev_notify = SIGEV_SIGNAL;
1341 ev.sigev_signo = SIGALRM;
1343 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1344 perror("timer_create");
1346 /* disable dynticks */
1347 fprintf(stderr, "Dynamic Ticks disabled\n");
1352 t->priv = (void *)(long)host_timer;
1357 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1359 timer_t host_timer = (timer_t)(long)t->priv;
1361 timer_delete(host_timer);
1364 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1366 timer_t host_timer = (timer_t)(long)t->priv;
1367 struct itimerspec timeout;
1368 int64_t nearest_delta_us = INT64_MAX;
1371 if (!active_timers[QEMU_TIMER_REALTIME] &&
1372 !active_timers[QEMU_TIMER_VIRTUAL])
1375 nearest_delta_us = qemu_next_deadline_dyntick();
1377 /* check whether a timer is already running */
1378 if (timer_gettime(host_timer, &timeout)) {
1380 fprintf(stderr, "Internal timer error: aborting\n");
1383 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1384 if (current_us && current_us <= nearest_delta_us)
1387 timeout.it_interval.tv_sec = 0;
1388 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1389 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1390 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1391 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1393 fprintf(stderr, "Internal timer error: aborting\n");
1398 #endif /* defined(__linux__) */
1400 static int unix_start_timer(struct qemu_alarm_timer *t)
1402 struct sigaction act;
1403 struct itimerval itv;
1407 sigfillset(&act.sa_mask);
1409 act.sa_handler = host_alarm_handler;
1411 sigaction(SIGALRM, &act, NULL);
1413 itv.it_interval.tv_sec = 0;
1414 /* for i386 kernel 2.6 to get 1 ms */
1415 itv.it_interval.tv_usec = 999;
1416 itv.it_value.tv_sec = 0;
1417 itv.it_value.tv_usec = 10 * 1000;
1419 err = setitimer(ITIMER_REAL, &itv, NULL);
1426 static void unix_stop_timer(struct qemu_alarm_timer *t)
1428 struct itimerval itv;
1430 memset(&itv, 0, sizeof(itv));
1431 setitimer(ITIMER_REAL, &itv, NULL);
1434 #endif /* !defined(_WIN32) */
1439 static int win32_start_timer(struct qemu_alarm_timer *t)
1442 struct qemu_alarm_win32 *data = t->priv;
1445 memset(&tc, 0, sizeof(tc));
1446 timeGetDevCaps(&tc, sizeof(tc));
1448 if (data->period < tc.wPeriodMin)
1449 data->period = tc.wPeriodMin;
1451 timeBeginPeriod(data->period);
1453 flags = TIME_CALLBACK_FUNCTION;
1454 if (alarm_has_dynticks(t))
1455 flags |= TIME_ONESHOT;
1457 flags |= TIME_PERIODIC;
1459 data->timerId = timeSetEvent(1, // interval (ms)
1460 data->period, // resolution
1461 host_alarm_handler, // function
1462 (DWORD)t, // parameter
1465 if (!data->timerId) {
1466 perror("Failed to initialize win32 alarm timer");
1467 timeEndPeriod(data->period);
1474 static void win32_stop_timer(struct qemu_alarm_timer *t)
1476 struct qemu_alarm_win32 *data = t->priv;
1478 timeKillEvent(data->timerId);
1479 timeEndPeriod(data->period);
1482 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1484 struct qemu_alarm_win32 *data = t->priv;
1485 uint64_t nearest_delta_us;
1487 if (!active_timers[QEMU_TIMER_REALTIME] &&
1488 !active_timers[QEMU_TIMER_VIRTUAL])
1491 nearest_delta_us = qemu_next_deadline_dyntick();
1492 nearest_delta_us /= 1000;
1494 timeKillEvent(data->timerId);
1496 data->timerId = timeSetEvent(1,
1500 TIME_ONESHOT | TIME_PERIODIC);
1502 if (!data->timerId) {
1503 perror("Failed to re-arm win32 alarm timer");
1505 timeEndPeriod(data->period);
1512 static int init_timer_alarm(void)
1514 struct qemu_alarm_timer *t = NULL;
1517 for (i = 0; alarm_timers[i].name; i++) {
1518 t = &alarm_timers[i];
1538 static void quit_timers(void)
1540 alarm_timer->stop(alarm_timer);
1544 /***********************************************************/
1545 /* host time/date access */
1546 void qemu_get_timedate(struct tm *tm, int offset)
1553 if (rtc_date_offset == -1) {
1557 ret = localtime(&ti);
1559 ti -= rtc_date_offset;
1563 memcpy(tm, ret, sizeof(struct tm));
1566 int qemu_timedate_diff(struct tm *tm)
1570 if (rtc_date_offset == -1)
1572 seconds = mktimegm(tm);
1574 seconds = mktime(tm);
1576 seconds = mktimegm(tm) + rtc_date_offset;
1578 return seconds - time(NULL);
1582 static void socket_cleanup(void)
1587 static int socket_init(void)
1592 ret = WSAStartup(MAKEWORD(2,2), &Data);
1594 err = WSAGetLastError();
1595 fprintf(stderr, "WSAStartup: %d\n", err);
1598 atexit(socket_cleanup);
1603 int get_next_param_value(char *buf, int buf_size,
1604 const char *tag, const char **pstr)
1611 p = get_opt_name(option, sizeof(option), p, '=');
1615 if (!strcmp(tag, option)) {
1616 *pstr = get_opt_value(buf, buf_size, p);
1617 if (**pstr == ',') {
1622 p = get_opt_value(NULL, 0, p);
1631 int get_param_value(char *buf, int buf_size,
1632 const char *tag, const char *str)
1634 return get_next_param_value(buf, buf_size, tag, &str);
1637 int check_params(char *buf, int buf_size,
1638 const char * const *params, const char *str)
1644 while (*p != '\0') {
1645 p = get_opt_name(buf, buf_size, p, '=');
1650 for (i = 0; params[i] != NULL; i++) {
1651 if (!strcmp(params[i], buf)) {
1655 if (params[i] == NULL) {
1658 p = get_opt_value(NULL, 0, p);
1667 /***********************************************************/
1668 /* Bluetooth support */
1671 static struct HCIInfo *hci_table[MAX_NICS];
1673 static struct bt_vlan_s {
1674 struct bt_scatternet_s net;
1676 struct bt_vlan_s *next;
1679 /* find or alloc a new bluetooth "VLAN" */
1680 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1682 struct bt_vlan_s **pvlan, *vlan;
1683 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1687 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1689 pvlan = &first_bt_vlan;
1690 while (*pvlan != NULL)
1691 pvlan = &(*pvlan)->next;
1696 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1700 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1705 static struct HCIInfo null_hci = {
1706 .cmd_send = null_hci_send,
1707 .sco_send = null_hci_send,
1708 .acl_send = null_hci_send,
1709 .bdaddr_set = null_hci_addr_set,
1712 struct HCIInfo *qemu_next_hci(void)
1714 if (cur_hci == nb_hcis)
1717 return hci_table[cur_hci++];
1720 static struct HCIInfo *hci_init(const char *str)
1723 struct bt_scatternet_s *vlan = 0;
1725 if (!strcmp(str, "null"))
1728 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1730 return bt_host_hci(str[4] ? str + 5 : "hci0");
1731 else if (!strncmp(str, "hci", 3)) {
1734 if (!strncmp(str + 3, ",vlan=", 6)) {
1735 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1740 vlan = qemu_find_bt_vlan(0);
1742 return bt_new_hci(vlan);
1745 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1750 static int bt_hci_parse(const char *str)
1752 struct HCIInfo *hci;
1755 if (nb_hcis >= MAX_NICS) {
1756 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1760 hci = hci_init(str);
1769 bdaddr.b[5] = 0x56 + nb_hcis;
1770 hci->bdaddr_set(hci, bdaddr.b);
1772 hci_table[nb_hcis++] = hci;
1777 static void bt_vhci_add(int vlan_id)
1779 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1782 fprintf(stderr, "qemu: warning: adding a VHCI to "
1783 "an empty scatternet %i\n", vlan_id);
1785 bt_vhci_init(bt_new_hci(vlan));
1788 static struct bt_device_s *bt_device_add(const char *opt)
1790 struct bt_scatternet_s *vlan;
1792 char *endp = strstr(opt, ",vlan=");
1793 int len = (endp ? endp - opt : strlen(opt)) + 1;
1796 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1799 vlan_id = strtol(endp + 6, &endp, 0);
1801 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1806 vlan = qemu_find_bt_vlan(vlan_id);
1809 fprintf(stderr, "qemu: warning: adding a slave device to "
1810 "an empty scatternet %i\n", vlan_id);
1812 if (!strcmp(devname, "keyboard"))
1813 return bt_keyboard_init(vlan);
1815 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1819 static int bt_parse(const char *opt)
1821 const char *endp, *p;
1824 if (strstart(opt, "hci", &endp)) {
1825 if (!*endp || *endp == ',') {
1827 if (!strstart(endp, ",vlan=", 0))
1830 return bt_hci_parse(opt);
1832 } else if (strstart(opt, "vhci", &endp)) {
1833 if (!*endp || *endp == ',') {
1835 if (strstart(endp, ",vlan=", &p)) {
1836 vlan = strtol(p, (char **) &endp, 0);
1838 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1842 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1851 } else if (strstart(opt, "device:", &endp))
1852 return !bt_device_add(endp);
1854 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1858 /***********************************************************/
1859 /* QEMU Block devices */
1861 #define HD_ALIAS "index=%d,media=disk"
1862 #define CDROM_ALIAS "index=2,media=cdrom"
1863 #define FD_ALIAS "index=%d,if=floppy"
1864 #define PFLASH_ALIAS "if=pflash"
1865 #define MTD_ALIAS "if=mtd"
1866 #define SD_ALIAS "index=0,if=sd"
1868 static int drive_opt_get_free_idx(void)
1872 for (index = 0; index < MAX_DRIVES; index++)
1873 if (!drives_opt[index].used) {
1874 drives_opt[index].used = 1;
1881 int drive_add(const char *file, const char *fmt, ...)
1884 int index = drive_opt_get_free_idx();
1886 if (nb_drives_opt >= MAX_DRIVES || index == -1) {
1887 fprintf(stderr, "qemu: too many drives\n");
1891 drives_opt[index].file = file;
1893 vsnprintf(drives_opt[index].opt,
1894 sizeof(drives_opt[0].opt), fmt, ap);
1901 void drive_remove(int index)
1903 drives_opt[index].used = 0;
1907 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1911 /* seek interface, bus and unit */
1913 TAILQ_FOREACH(dinfo, &drives, next) {
1914 if (dinfo->type == type &&
1915 dinfo->bus == bus &&
1916 dinfo->unit == unit)
1923 int drive_get_max_bus(BlockInterfaceType type)
1929 TAILQ_FOREACH(dinfo, &drives, next) {
1930 if(dinfo->type == type &&
1931 dinfo->bus > max_bus)
1932 max_bus = dinfo->bus;
1937 const char *drive_get_serial(BlockDriverState *bdrv)
1941 TAILQ_FOREACH(dinfo, &drives, next) {
1942 if (dinfo->bdrv == bdrv)
1943 return dinfo->serial;
1949 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1953 TAILQ_FOREACH(dinfo, &drives, next) {
1954 if (dinfo->bdrv == bdrv)
1955 return dinfo->onerror;
1958 return BLOCK_ERR_STOP_ENOSPC;
1961 static void bdrv_format_print(void *opaque, const char *name)
1963 fprintf(stderr, " %s", name);
1966 void drive_uninit(BlockDriverState *bdrv)
1970 TAILQ_FOREACH(dinfo, &drives, next) {
1971 if (dinfo->bdrv != bdrv)
1973 drive_remove(dinfo->drive_opt_idx);
1974 TAILQ_REMOVE(&drives, dinfo, next);
1980 DriveInfo *drive_init(struct drive_opt *arg, int snapshot, void *opaque,
1987 const char *mediastr = "";
1988 BlockInterfaceType type;
1989 enum { MEDIA_DISK, MEDIA_CDROM } media;
1990 int bus_id, unit_id;
1991 int cyls, heads, secs, translation;
1992 BlockDriverState *bdrv;
1993 BlockDriver *drv = NULL;
1994 QEMUMachine *machine = opaque;
1998 int bdrv_flags, onerror;
1999 const char *devaddr;
2001 char *str = arg->opt;
2002 static const char * const params[] = { "bus", "unit", "if", "index",
2003 "cyls", "heads", "secs", "trans",
2004 "media", "snapshot", "file",
2005 "cache", "format", "serial",
2010 if (check_params(buf, sizeof(buf), params, str) < 0) {
2011 fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n",
2017 cyls = heads = secs = 0;
2020 translation = BIOS_ATA_TRANSLATION_AUTO;
2024 if (machine->use_scsi) {
2026 max_devs = MAX_SCSI_DEVS;
2027 pstrcpy(devname, sizeof(devname), "scsi");
2030 max_devs = MAX_IDE_DEVS;
2031 pstrcpy(devname, sizeof(devname), "ide");
2035 /* extract parameters */
2037 if (get_param_value(buf, sizeof(buf), "bus", str)) {
2038 bus_id = strtol(buf, NULL, 0);
2040 fprintf(stderr, "qemu: '%s' invalid bus id\n", str);
2045 if (get_param_value(buf, sizeof(buf), "unit", str)) {
2046 unit_id = strtol(buf, NULL, 0);
2048 fprintf(stderr, "qemu: '%s' invalid unit id\n", str);
2053 if (get_param_value(buf, sizeof(buf), "if", str)) {
2054 pstrcpy(devname, sizeof(devname), buf);
2055 if (!strcmp(buf, "ide")) {
2057 max_devs = MAX_IDE_DEVS;
2058 } else if (!strcmp(buf, "scsi")) {
2060 max_devs = MAX_SCSI_DEVS;
2061 } else if (!strcmp(buf, "floppy")) {
2064 } else if (!strcmp(buf, "pflash")) {
2067 } else if (!strcmp(buf, "mtd")) {
2070 } else if (!strcmp(buf, "sd")) {
2073 } else if (!strcmp(buf, "virtio")) {
2076 } else if (!strcmp(buf, "xen")) {
2080 fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
2085 if (get_param_value(buf, sizeof(buf), "index", str)) {
2086 index = strtol(buf, NULL, 0);
2088 fprintf(stderr, "qemu: '%s' invalid index\n", str);
2093 if (get_param_value(buf, sizeof(buf), "cyls", str)) {
2094 cyls = strtol(buf, NULL, 0);
2097 if (get_param_value(buf, sizeof(buf), "heads", str)) {
2098 heads = strtol(buf, NULL, 0);
2101 if (get_param_value(buf, sizeof(buf), "secs", str)) {
2102 secs = strtol(buf, NULL, 0);
2105 if (cyls || heads || secs) {
2106 if (cyls < 1 || cyls > 16383) {
2107 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str);
2110 if (heads < 1 || heads > 16) {
2111 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str);
2114 if (secs < 1 || secs > 63) {
2115 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str);
2120 if (get_param_value(buf, sizeof(buf), "trans", str)) {
2123 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2127 if (!strcmp(buf, "none"))
2128 translation = BIOS_ATA_TRANSLATION_NONE;
2129 else if (!strcmp(buf, "lba"))
2130 translation = BIOS_ATA_TRANSLATION_LBA;
2131 else if (!strcmp(buf, "auto"))
2132 translation = BIOS_ATA_TRANSLATION_AUTO;
2134 fprintf(stderr, "qemu: '%s' invalid translation type\n", str);
2139 if (get_param_value(buf, sizeof(buf), "media", str)) {
2140 if (!strcmp(buf, "disk")) {
2142 } else if (!strcmp(buf, "cdrom")) {
2143 if (cyls || secs || heads) {
2145 "qemu: '%s' invalid physical CHS format\n", str);
2148 media = MEDIA_CDROM;
2150 fprintf(stderr, "qemu: '%s' invalid media\n", str);
2155 if (get_param_value(buf, sizeof(buf), "snapshot", str)) {
2156 if (!strcmp(buf, "on"))
2158 else if (!strcmp(buf, "off"))
2161 fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str);
2166 if (get_param_value(buf, sizeof(buf), "cache", str)) {
2167 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2169 else if (!strcmp(buf, "writethrough"))
2171 else if (!strcmp(buf, "writeback"))
2174 fprintf(stderr, "qemu: invalid cache option\n");
2179 if (get_param_value(buf, sizeof(buf), "format", str)) {
2180 if (strcmp(buf, "?") == 0) {
2181 fprintf(stderr, "qemu: Supported formats:");
2182 bdrv_iterate_format(bdrv_format_print, NULL);
2183 fprintf(stderr, "\n");
2186 drv = bdrv_find_format(buf);
2188 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2193 if (arg->file == NULL)
2194 get_param_value(file, sizeof(file), "file", str);
2196 pstrcpy(file, sizeof(file), arg->file);
2198 if (!get_param_value(serial, sizeof(serial), "serial", str))
2199 memset(serial, 0, sizeof(serial));
2201 onerror = BLOCK_ERR_STOP_ENOSPC;
2202 if (get_param_value(buf, sizeof(serial), "werror", str)) {
2203 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2204 fprintf(stderr, "werror is no supported by this format\n");
2207 if (!strcmp(buf, "ignore"))
2208 onerror = BLOCK_ERR_IGNORE;
2209 else if (!strcmp(buf, "enospc"))
2210 onerror = BLOCK_ERR_STOP_ENOSPC;
2211 else if (!strcmp(buf, "stop"))
2212 onerror = BLOCK_ERR_STOP_ANY;
2213 else if (!strcmp(buf, "report"))
2214 onerror = BLOCK_ERR_REPORT;
2216 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
2222 if (get_param_value(buf, sizeof(buf), "addr", str)) {
2223 if (type != IF_VIRTIO) {
2224 fprintf(stderr, "addr is not supported by in '%s'\n", str);
2227 devaddr = strdup(buf);
2230 /* compute bus and unit according index */
2233 if (bus_id != 0 || unit_id != -1) {
2235 "qemu: '%s' index cannot be used with bus and unit\n", str);
2243 unit_id = index % max_devs;
2244 bus_id = index / max_devs;
2248 /* if user doesn't specify a unit_id,
2249 * try to find the first free
2252 if (unit_id == -1) {
2254 while (drive_get(type, bus_id, unit_id) != NULL) {
2256 if (max_devs && unit_id >= max_devs) {
2257 unit_id -= max_devs;
2265 if (max_devs && unit_id >= max_devs) {
2266 fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n",
2267 str, unit_id, max_devs - 1);
2272 * ignore multiple definitions
2275 if (drive_get(type, bus_id, unit_id) != NULL) {
2282 if (type == IF_IDE || type == IF_SCSI)
2283 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2285 snprintf(buf, sizeof(buf), "%s%i%s%i",
2286 devname, bus_id, mediastr, unit_id);
2288 snprintf(buf, sizeof(buf), "%s%s%i",
2289 devname, mediastr, unit_id);
2290 bdrv = bdrv_new(buf);
2291 dinfo = qemu_mallocz(sizeof(*dinfo));
2293 dinfo->devaddr = devaddr;
2295 dinfo->bus = bus_id;
2296 dinfo->unit = unit_id;
2297 dinfo->onerror = onerror;
2298 dinfo->drive_opt_idx = arg - drives_opt;
2299 strncpy(dinfo->serial, serial, sizeof(serial));
2300 TAILQ_INSERT_TAIL(&drives, dinfo, next);
2309 bdrv_set_geometry_hint(bdrv, cyls, heads, secs);
2310 bdrv_set_translation_hint(bdrv, translation);
2314 bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
2319 /* FIXME: This isn't really a floppy, but it's a reasonable
2322 bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY);
2337 bdrv_flags |= BDRV_O_SNAPSHOT;
2338 cache = 2; /* always use write-back with snapshot */
2340 if (cache == 0) /* no caching */
2341 bdrv_flags |= BDRV_O_NOCACHE;
2342 else if (cache == 2) /* write-back */
2343 bdrv_flags |= BDRV_O_CACHE_WB;
2344 if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0) {
2345 fprintf(stderr, "qemu: could not open disk image %s\n",
2349 if (bdrv_key_required(bdrv))
2355 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2357 boot_set_handler = func;
2358 boot_set_opaque = opaque;
2361 int qemu_boot_set(const char *boot_devices)
2363 if (!boot_set_handler) {
2366 return boot_set_handler(boot_set_opaque, boot_devices);
2369 static int parse_bootdevices(char *devices)
2371 /* We just do some generic consistency checks */
2375 for (p = devices; *p != '\0'; p++) {
2376 /* Allowed boot devices are:
2377 * a-b: floppy disk drives
2378 * c-f: IDE disk drives
2379 * g-m: machine implementation dependant drives
2380 * n-p: network devices
2381 * It's up to each machine implementation to check if the given boot
2382 * devices match the actual hardware implementation and firmware
2385 if (*p < 'a' || *p > 'p') {
2386 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2389 if (bitmap & (1 << (*p - 'a'))) {
2390 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2393 bitmap |= 1 << (*p - 'a');
2398 static void restore_boot_devices(void *opaque)
2400 char *standard_boot_devices = opaque;
2402 qemu_boot_set(standard_boot_devices);
2404 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2405 qemu_free(standard_boot_devices);
2408 static void numa_add(const char *optarg)
2412 unsigned long long value, endvalue;
2415 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2416 if (!strcmp(option, "node")) {
2417 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2418 nodenr = nb_numa_nodes;
2420 nodenr = strtoull(option, NULL, 10);
2423 if (get_param_value(option, 128, "mem", optarg) == 0) {
2424 node_mem[nodenr] = 0;
2426 value = strtoull(option, &endptr, 0);
2428 case 0: case 'M': case 'm':
2435 node_mem[nodenr] = value;
2437 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2438 node_cpumask[nodenr] = 0;
2440 value = strtoull(option, &endptr, 10);
2443 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2445 if (*endptr == '-') {
2446 endvalue = strtoull(endptr+1, &endptr, 10);
2447 if (endvalue >= 63) {
2450 "only 63 CPUs in NUMA mode supported.\n");
2452 value = (1 << (endvalue + 1)) - (1 << value);
2457 node_cpumask[nodenr] = value;
2464 /***********************************************************/
2467 static USBPort *used_usb_ports;
2468 static USBPort *free_usb_ports;
2470 /* ??? Maybe change this to register a hub to keep track of the topology. */
2471 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
2472 usb_attachfn attach)
2474 port->opaque = opaque;
2475 port->index = index;
2476 port->attach = attach;
2477 port->next = free_usb_ports;
2478 free_usb_ports = port;
2481 int usb_device_add_dev(USBDevice *dev)
2485 /* Find a USB port to add the device to. */
2486 port = free_usb_ports;
2490 /* Create a new hub and chain it on. */
2491 free_usb_ports = NULL;
2492 port->next = used_usb_ports;
2493 used_usb_ports = port;
2495 hub = usb_hub_init(VM_USB_HUB_SIZE);
2496 usb_attach(port, hub);
2497 port = free_usb_ports;
2500 free_usb_ports = port->next;
2501 port->next = used_usb_ports;
2502 used_usb_ports = port;
2503 usb_attach(port, dev);
2507 static void usb_msd_password_cb(void *opaque, int err)
2509 USBDevice *dev = opaque;
2512 usb_device_add_dev(dev);
2514 dev->handle_destroy(dev);
2517 static int usb_device_add(const char *devname, int is_hotplug)
2522 if (!free_usb_ports)
2525 if (strstart(devname, "host:", &p)) {
2526 dev = usb_host_device_open(p);
2527 } else if (!strcmp(devname, "mouse")) {
2528 dev = usb_mouse_init();
2529 } else if (!strcmp(devname, "tablet")) {
2530 dev = usb_tablet_init();
2531 } else if (!strcmp(devname, "keyboard")) {
2532 dev = usb_keyboard_init();
2533 } else if (strstart(devname, "disk:", &p)) {
2534 BlockDriverState *bs;
2536 dev = usb_msd_init(p);
2539 bs = usb_msd_get_bdrv(dev);
2540 if (bdrv_key_required(bs)) {
2543 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2548 } else if (!strcmp(devname, "wacom-tablet")) {
2549 dev = usb_wacom_init();
2550 } else if (strstart(devname, "serial:", &p)) {
2551 dev = usb_serial_init(p);
2552 #ifdef CONFIG_BRLAPI
2553 } else if (!strcmp(devname, "braille")) {
2554 dev = usb_baum_init();
2556 } else if (strstart(devname, "net:", &p)) {
2559 if (net_client_init(NULL, "nic", p) < 0)
2561 nd_table[nic].model = "usb";
2562 dev = usb_net_init(&nd_table[nic]);
2563 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2564 dev = usb_bt_init(devname[2] ? hci_init(p) :
2565 bt_new_hci(qemu_find_bt_vlan(0)));
2572 return usb_device_add_dev(dev);
2575 int usb_device_del_addr(int bus_num, int addr)
2581 if (!used_usb_ports)
2587 lastp = &used_usb_ports;
2588 port = used_usb_ports;
2589 while (port && port->dev->addr != addr) {
2590 lastp = &port->next;
2598 *lastp = port->next;
2599 usb_attach(port, NULL);
2600 dev->handle_destroy(dev);
2601 port->next = free_usb_ports;
2602 free_usb_ports = port;
2606 static int usb_device_del(const char *devname)
2611 if (strstart(devname, "host:", &p))
2612 return usb_host_device_close(p);
2614 if (!used_usb_ports)
2617 p = strchr(devname, '.');
2620 bus_num = strtoul(devname, NULL, 0);
2621 addr = strtoul(p + 1, NULL, 0);
2623 return usb_device_del_addr(bus_num, addr);
2626 static int usb_parse(const char *cmdline)
2628 return usb_device_add(cmdline, 0);
2631 void do_usb_add(Monitor *mon, const char *devname)
2633 usb_device_add(devname, 1);
2636 void do_usb_del(Monitor *mon, const char *devname)
2638 usb_device_del(devname);
2641 void usb_info(Monitor *mon)
2645 const char *speed_str;
2648 monitor_printf(mon, "USB support not enabled\n");
2652 for (port = used_usb_ports; port; port = port->next) {
2656 switch(dev->speed) {
2660 case USB_SPEED_FULL:
2663 case USB_SPEED_HIGH:
2670 monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
2671 0, dev->addr, speed_str, dev->devname);
2675 /***********************************************************/
2676 /* PCMCIA/Cardbus */
2678 static struct pcmcia_socket_entry_s {
2679 PCMCIASocket *socket;
2680 struct pcmcia_socket_entry_s *next;
2681 } *pcmcia_sockets = 0;
2683 void pcmcia_socket_register(PCMCIASocket *socket)
2685 struct pcmcia_socket_entry_s *entry;
2687 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2688 entry->socket = socket;
2689 entry->next = pcmcia_sockets;
2690 pcmcia_sockets = entry;
2693 void pcmcia_socket_unregister(PCMCIASocket *socket)
2695 struct pcmcia_socket_entry_s *entry, **ptr;
2697 ptr = &pcmcia_sockets;
2698 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2699 if (entry->socket == socket) {
2705 void pcmcia_info(Monitor *mon)
2707 struct pcmcia_socket_entry_s *iter;
2709 if (!pcmcia_sockets)
2710 monitor_printf(mon, "No PCMCIA sockets\n");
2712 for (iter = pcmcia_sockets; iter; iter = iter->next)
2713 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2714 iter->socket->attached ? iter->socket->card_string :
2718 /***********************************************************/
2719 /* register display */
2721 struct DisplayAllocator default_allocator = {
2722 defaultallocator_create_displaysurface,
2723 defaultallocator_resize_displaysurface,
2724 defaultallocator_free_displaysurface
2727 void register_displaystate(DisplayState *ds)
2737 DisplayState *get_displaystate(void)
2739 return display_state;
2742 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2744 if(ds->allocator == &default_allocator) ds->allocator = da;
2745 return ds->allocator;
2750 static void dumb_display_init(void)
2752 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2753 ds->allocator = &default_allocator;
2754 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2755 register_displaystate(ds);
2758 /***********************************************************/
2761 typedef struct IOHandlerRecord {
2763 IOCanRWHandler *fd_read_poll;
2765 IOHandler *fd_write;
2768 /* temporary data */
2770 struct IOHandlerRecord *next;
2773 static IOHandlerRecord *first_io_handler;
2775 /* XXX: fd_read_poll should be suppressed, but an API change is
2776 necessary in the character devices to suppress fd_can_read(). */
2777 int qemu_set_fd_handler2(int fd,
2778 IOCanRWHandler *fd_read_poll,
2780 IOHandler *fd_write,
2783 IOHandlerRecord **pioh, *ioh;
2785 if (!fd_read && !fd_write) {
2786 pioh = &first_io_handler;
2791 if (ioh->fd == fd) {
2798 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2802 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2803 ioh->next = first_io_handler;
2804 first_io_handler = ioh;
2807 ioh->fd_read_poll = fd_read_poll;
2808 ioh->fd_read = fd_read;
2809 ioh->fd_write = fd_write;
2810 ioh->opaque = opaque;
2816 int qemu_set_fd_handler(int fd,
2818 IOHandler *fd_write,
2821 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2825 /***********************************************************/
2826 /* Polling handling */
2828 typedef struct PollingEntry {
2831 struct PollingEntry *next;
2834 static PollingEntry *first_polling_entry;
2836 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2838 PollingEntry **ppe, *pe;
2839 pe = qemu_mallocz(sizeof(PollingEntry));
2841 pe->opaque = opaque;
2842 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2847 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2849 PollingEntry **ppe, *pe;
2850 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2852 if (pe->func == func && pe->opaque == opaque) {
2860 /***********************************************************/
2861 /* Wait objects support */
2862 typedef struct WaitObjects {
2864 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2865 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2866 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2869 static WaitObjects wait_objects = {0};
2871 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2873 WaitObjects *w = &wait_objects;
2875 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2877 w->events[w->num] = handle;
2878 w->func[w->num] = func;
2879 w->opaque[w->num] = opaque;
2884 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2887 WaitObjects *w = &wait_objects;
2890 for (i = 0; i < w->num; i++) {
2891 if (w->events[i] == handle)
2894 w->events[i] = w->events[i + 1];
2895 w->func[i] = w->func[i + 1];
2896 w->opaque[i] = w->opaque[i + 1];
2904 /***********************************************************/
2905 /* ram save/restore */
2907 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2911 v = qemu_get_byte(f);
2914 if (qemu_get_buffer(f, buf, len) != len)
2918 v = qemu_get_byte(f);
2919 memset(buf, v, len);
2925 if (qemu_file_has_error(f))
2931 static int ram_load_v1(QEMUFile *f, void *opaque)
2936 if (qemu_get_be32(f) != last_ram_offset)
2938 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
2939 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
2946 #define BDRV_HASH_BLOCK_SIZE 1024
2947 #define IOBUF_SIZE 4096
2948 #define RAM_CBLOCK_MAGIC 0xfabe
2950 typedef struct RamDecompressState {
2953 uint8_t buf[IOBUF_SIZE];
2954 } RamDecompressState;
2956 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2959 memset(s, 0, sizeof(*s));
2961 ret = inflateInit(&s->zstream);
2967 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2971 s->zstream.avail_out = len;
2972 s->zstream.next_out = buf;
2973 while (s->zstream.avail_out > 0) {
2974 if (s->zstream.avail_in == 0) {
2975 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2977 clen = qemu_get_be16(s->f);
2978 if (clen > IOBUF_SIZE)
2980 qemu_get_buffer(s->f, s->buf, clen);
2981 s->zstream.avail_in = clen;
2982 s->zstream.next_in = s->buf;
2984 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2985 if (ret != Z_OK && ret != Z_STREAM_END) {
2992 static void ram_decompress_close(RamDecompressState *s)
2994 inflateEnd(&s->zstream);
2997 #define RAM_SAVE_FLAG_FULL 0x01
2998 #define RAM_SAVE_FLAG_COMPRESS 0x02
2999 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
3000 #define RAM_SAVE_FLAG_PAGE 0x08
3001 #define RAM_SAVE_FLAG_EOS 0x10
3003 static int is_dup_page(uint8_t *page, uint8_t ch)
3005 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
3006 uint32_t *array = (uint32_t *)page;
3009 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
3010 if (array[i] != val)
3017 static int ram_save_block(QEMUFile *f)
3019 static ram_addr_t current_addr = 0;
3020 ram_addr_t saved_addr = current_addr;
3021 ram_addr_t addr = 0;
3024 while (addr < last_ram_offset) {
3025 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
3028 cpu_physical_memory_reset_dirty(current_addr,
3029 current_addr + TARGET_PAGE_SIZE,
3030 MIGRATION_DIRTY_FLAG);
3032 p = qemu_get_ram_ptr(current_addr);
3034 if (is_dup_page(p, *p)) {
3035 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
3036 qemu_put_byte(f, *p);
3038 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
3039 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
3045 addr += TARGET_PAGE_SIZE;
3046 current_addr = (saved_addr + addr) % last_ram_offset;
3052 static uint64_t bytes_transferred = 0;
3054 static ram_addr_t ram_save_remaining(void)
3057 ram_addr_t count = 0;
3059 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
3060 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3067 uint64_t ram_bytes_remaining(void)
3069 return ram_save_remaining() * TARGET_PAGE_SIZE;
3072 uint64_t ram_bytes_transferred(void)
3074 return bytes_transferred;
3077 uint64_t ram_bytes_total(void)
3079 return last_ram_offset;
3082 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
3085 uint64_t bytes_transferred_last;
3087 uint64_t expected_time = 0;
3089 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
3090 qemu_file_set_error(f);
3095 /* Make sure all dirty bits are set */
3096 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
3097 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3098 cpu_physical_memory_set_dirty(addr);
3101 /* Enable dirty memory tracking */
3102 cpu_physical_memory_set_dirty_tracking(1);
3104 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
3107 bytes_transferred_last = bytes_transferred;
3108 bwidth = get_clock();
3110 while (!qemu_file_rate_limit(f)) {
3113 ret = ram_save_block(f);
3114 bytes_transferred += ret * TARGET_PAGE_SIZE;
3115 if (ret == 0) /* no more blocks */
3119 bwidth = get_clock() - bwidth;
3120 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
3122 /* if we haven't transferred anything this round, force expected_time to a
3123 * a very high value, but without crashing */
3127 /* try transferring iterative blocks of memory */
3131 /* flush all remaining blocks regardless of rate limiting */
3132 while (ram_save_block(f) != 0) {
3133 bytes_transferred += TARGET_PAGE_SIZE;
3135 cpu_physical_memory_set_dirty_tracking(0);
3138 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3140 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
3142 return (stage == 2) && (expected_time <= migrate_max_downtime());
3145 static int ram_load_dead(QEMUFile *f, void *opaque)
3147 RamDecompressState s1, *s = &s1;
3151 if (ram_decompress_open(s, f) < 0)
3153 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
3154 if (ram_decompress_buf(s, buf, 1) < 0) {
3155 fprintf(stderr, "Error while reading ram block header\n");
3159 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3160 BDRV_HASH_BLOCK_SIZE) < 0) {
3161 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
3166 printf("Error block header\n");
3170 ram_decompress_close(s);
3175 static int ram_load(QEMUFile *f, void *opaque, int version_id)
3180 if (version_id == 1)
3181 return ram_load_v1(f, opaque);
3183 if (version_id == 2) {
3184 if (qemu_get_be32(f) != last_ram_offset)
3186 return ram_load_dead(f, opaque);
3189 if (version_id != 3)
3193 addr = qemu_get_be64(f);
3195 flags = addr & ~TARGET_PAGE_MASK;
3196 addr &= TARGET_PAGE_MASK;
3198 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
3199 if (addr != last_ram_offset)
3203 if (flags & RAM_SAVE_FLAG_FULL) {
3204 if (ram_load_dead(f, opaque) < 0)
3208 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3209 uint8_t ch = qemu_get_byte(f);
3210 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3213 (!kvm_enabled() || kvm_has_sync_mmu())) {
3214 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
3217 } else if (flags & RAM_SAVE_FLAG_PAGE)
3218 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
3219 } while (!(flags & RAM_SAVE_FLAG_EOS));
3224 void qemu_service_io(void)
3226 qemu_notify_event();
3229 /***********************************************************/
3230 /* bottom halves (can be seen as timers which expire ASAP) */
3241 static QEMUBH *first_bh = NULL;
3243 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3246 bh = qemu_mallocz(sizeof(QEMUBH));
3248 bh->opaque = opaque;
3249 bh->next = first_bh;
3254 int qemu_bh_poll(void)
3260 for (bh = first_bh; bh; bh = bh->next) {
3261 if (!bh->deleted && bh->scheduled) {
3270 /* remove deleted bhs */
3284 void qemu_bh_schedule_idle(QEMUBH *bh)
3292 void qemu_bh_schedule(QEMUBH *bh)
3298 /* stop the currently executing CPU to execute the BH ASAP */
3299 qemu_notify_event();
3302 void qemu_bh_cancel(QEMUBH *bh)
3307 void qemu_bh_delete(QEMUBH *bh)
3313 static void qemu_bh_update_timeout(int *timeout)
3317 for (bh = first_bh; bh; bh = bh->next) {
3318 if (!bh->deleted && bh->scheduled) {
3320 /* idle bottom halves will be polled at least
3322 *timeout = MIN(10, *timeout);
3324 /* non-idle bottom halves will be executed
3333 /***********************************************************/
3334 /* machine registration */
3336 static QEMUMachine *first_machine = NULL;
3337 QEMUMachine *current_machine = NULL;
3339 int qemu_register_machine(QEMUMachine *m)
3342 pm = &first_machine;
3350 static QEMUMachine *find_machine(const char *name)
3354 for(m = first_machine; m != NULL; m = m->next) {
3355 if (!strcmp(m->name, name))
3357 if (m->alias && !strcmp(m->alias, name))
3363 static QEMUMachine *find_default_machine(void)
3367 for(m = first_machine; m != NULL; m = m->next) {
3368 if (m->is_default) {
3375 /***********************************************************/
3376 /* main execution loop */
3378 static void gui_update(void *opaque)
3380 uint64_t interval = GUI_REFRESH_INTERVAL;
3381 DisplayState *ds = opaque;
3382 DisplayChangeListener *dcl = ds->listeners;
3386 while (dcl != NULL) {
3387 if (dcl->gui_timer_interval &&
3388 dcl->gui_timer_interval < interval)
3389 interval = dcl->gui_timer_interval;
3392 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3395 static void nographic_update(void *opaque)
3397 uint64_t interval = GUI_REFRESH_INTERVAL;
3399 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3402 struct vm_change_state_entry {
3403 VMChangeStateHandler *cb;
3405 LIST_ENTRY (vm_change_state_entry) entries;
3408 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3410 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3413 VMChangeStateEntry *e;
3415 e = qemu_mallocz(sizeof (*e));
3419 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3423 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3425 LIST_REMOVE (e, entries);
3429 static void vm_state_notify(int running, int reason)
3431 VMChangeStateEntry *e;
3433 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3434 e->cb(e->opaque, running, reason);
3438 static void resume_all_vcpus(void);
3439 static void pause_all_vcpus(void);
3446 vm_state_notify(1, 0);
3447 qemu_rearm_alarm_timer(alarm_timer);
3452 /* reset/shutdown handler */
3454 typedef struct QEMUResetEntry {
3455 TAILQ_ENTRY(QEMUResetEntry) entry;
3456 QEMUResetHandler *func;
3460 static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3461 TAILQ_HEAD_INITIALIZER(reset_handlers);
3462 static int reset_requested;
3463 static int shutdown_requested;
3464 static int powerdown_requested;
3465 static int debug_requested;
3466 static int vmstop_requested;
3468 int qemu_shutdown_requested(void)
3470 int r = shutdown_requested;
3471 shutdown_requested = 0;
3475 int qemu_reset_requested(void)
3477 int r = reset_requested;
3478 reset_requested = 0;
3482 int qemu_powerdown_requested(void)
3484 int r = powerdown_requested;
3485 powerdown_requested = 0;
3489 static int qemu_debug_requested(void)
3491 int r = debug_requested;
3492 debug_requested = 0;
3496 static int qemu_vmstop_requested(void)
3498 int r = vmstop_requested;
3499 vmstop_requested = 0;
3503 static void do_vm_stop(int reason)
3506 cpu_disable_ticks();
3509 vm_state_notify(0, reason);
3513 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3515 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3518 re->opaque = opaque;
3519 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3522 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3526 TAILQ_FOREACH(re, &reset_handlers, entry) {
3527 if (re->func == func && re->opaque == opaque) {
3528 TAILQ_REMOVE(&reset_handlers, re, entry);
3535 void qemu_system_reset(void)
3537 QEMUResetEntry *re, *nre;
3539 /* reset all devices */
3540 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3541 re->func(re->opaque);
3545 void qemu_system_reset_request(void)
3548 shutdown_requested = 1;
3550 reset_requested = 1;
3552 qemu_notify_event();
3555 void qemu_system_shutdown_request(void)
3557 shutdown_requested = 1;
3558 qemu_notify_event();
3561 void qemu_system_powerdown_request(void)
3563 powerdown_requested = 1;
3564 qemu_notify_event();
3567 #ifdef CONFIG_IOTHREAD
3568 static void qemu_system_vmstop_request(int reason)
3570 vmstop_requested = reason;
3571 qemu_notify_event();
3576 static int io_thread_fd = -1;
3578 static void qemu_event_increment(void)
3580 static const char byte = 0;
3582 if (io_thread_fd == -1)
3585 write(io_thread_fd, &byte, sizeof(byte));
3588 static void qemu_event_read(void *opaque)
3590 int fd = (unsigned long)opaque;
3593 /* Drain the notify pipe */
3596 len = read(fd, buffer, sizeof(buffer));
3597 } while ((len == -1 && errno == EINTR) || len > 0);
3600 static int qemu_event_init(void)
3609 err = fcntl_setfl(fds[0], O_NONBLOCK);
3613 err = fcntl_setfl(fds[1], O_NONBLOCK);
3617 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3618 (void *)(unsigned long)fds[0]);
3620 io_thread_fd = fds[1];
3629 HANDLE qemu_event_handle;
3631 static void dummy_event_handler(void *opaque)
3635 static int qemu_event_init(void)
3637 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3638 if (!qemu_event_handle) {
3639 perror("Failed CreateEvent");
3642 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3646 static void qemu_event_increment(void)
3648 SetEvent(qemu_event_handle);
3652 static int cpu_can_run(CPUState *env)
3661 #ifndef CONFIG_IOTHREAD
3662 static int qemu_init_main_loop(void)
3664 return qemu_event_init();
3667 void qemu_init_vcpu(void *_env)
3669 CPUState *env = _env;
3676 int qemu_cpu_self(void *env)
3681 static void resume_all_vcpus(void)
3685 static void pause_all_vcpus(void)
3689 void qemu_cpu_kick(void *env)
3694 void qemu_notify_event(void)
3696 CPUState *env = cpu_single_env;
3701 if (env->kqemu_enabled)
3702 kqemu_cpu_interrupt(env);
3707 #define qemu_mutex_lock_iothread() do { } while (0)
3708 #define qemu_mutex_unlock_iothread() do { } while (0)
3710 void vm_stop(int reason)
3715 #else /* CONFIG_IOTHREAD */
3717 #include "qemu-thread.h"
3719 QemuMutex qemu_global_mutex;
3720 static QemuMutex qemu_fair_mutex;
3722 static QemuThread io_thread;
3724 static QemuThread *tcg_cpu_thread;
3725 static QemuCond *tcg_halt_cond;
3727 static int qemu_system_ready;
3729 static QemuCond qemu_cpu_cond;
3731 static QemuCond qemu_system_cond;
3732 static QemuCond qemu_pause_cond;
3734 static void block_io_signals(void);
3735 static void unblock_io_signals(void);
3736 static int tcg_has_work(void);
3738 static int qemu_init_main_loop(void)
3742 ret = qemu_event_init();
3746 qemu_cond_init(&qemu_pause_cond);
3747 qemu_mutex_init(&qemu_fair_mutex);
3748 qemu_mutex_init(&qemu_global_mutex);
3749 qemu_mutex_lock(&qemu_global_mutex);
3751 unblock_io_signals();
3752 qemu_thread_self(&io_thread);
3757 static void qemu_wait_io_event(CPUState *env)
3759 while (!tcg_has_work())
3760 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3762 qemu_mutex_unlock(&qemu_global_mutex);
3765 * Users of qemu_global_mutex can be starved, having no chance
3766 * to acquire it since this path will get to it first.
3767 * So use another lock to provide fairness.
3769 qemu_mutex_lock(&qemu_fair_mutex);
3770 qemu_mutex_unlock(&qemu_fair_mutex);
3772 qemu_mutex_lock(&qemu_global_mutex);
3776 qemu_cond_signal(&qemu_pause_cond);
3780 static int qemu_cpu_exec(CPUState *env);
3782 static void *kvm_cpu_thread_fn(void *arg)
3784 CPUState *env = arg;
3787 qemu_thread_self(env->thread);
3789 /* signal CPU creation */
3790 qemu_mutex_lock(&qemu_global_mutex);
3792 qemu_cond_signal(&qemu_cpu_cond);
3794 /* and wait for machine initialization */
3795 while (!qemu_system_ready)
3796 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3799 if (cpu_can_run(env))
3801 qemu_wait_io_event(env);
3807 static void tcg_cpu_exec(void);
3809 static void *tcg_cpu_thread_fn(void *arg)
3811 CPUState *env = arg;
3814 qemu_thread_self(env->thread);
3816 /* signal CPU creation */
3817 qemu_mutex_lock(&qemu_global_mutex);
3818 for (env = first_cpu; env != NULL; env = env->next_cpu)
3820 qemu_cond_signal(&qemu_cpu_cond);
3822 /* and wait for machine initialization */
3823 while (!qemu_system_ready)
3824 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3828 qemu_wait_io_event(cur_cpu);
3834 void qemu_cpu_kick(void *_env)
3836 CPUState *env = _env;
3837 qemu_cond_broadcast(env->halt_cond);
3839 qemu_thread_signal(env->thread, SIGUSR1);
3842 int qemu_cpu_self(void *env)
3844 return (cpu_single_env != NULL);
3847 static void cpu_signal(int sig)
3850 cpu_exit(cpu_single_env);
3853 static void block_io_signals(void)
3856 struct sigaction sigact;
3859 sigaddset(&set, SIGUSR2);
3860 sigaddset(&set, SIGIO);
3861 sigaddset(&set, SIGALRM);
3862 pthread_sigmask(SIG_BLOCK, &set, NULL);
3865 sigaddset(&set, SIGUSR1);
3866 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3868 memset(&sigact, 0, sizeof(sigact));
3869 sigact.sa_handler = cpu_signal;
3870 sigaction(SIGUSR1, &sigact, NULL);
3873 static void unblock_io_signals(void)
3878 sigaddset(&set, SIGUSR2);
3879 sigaddset(&set, SIGIO);
3880 sigaddset(&set, SIGALRM);
3881 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3884 sigaddset(&set, SIGUSR1);
3885 pthread_sigmask(SIG_BLOCK, &set, NULL);
3888 static void qemu_signal_lock(unsigned int msecs)
3890 qemu_mutex_lock(&qemu_fair_mutex);
3892 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3893 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3894 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3897 qemu_mutex_unlock(&qemu_fair_mutex);
3900 static void qemu_mutex_lock_iothread(void)
3902 if (kvm_enabled()) {
3903 qemu_mutex_lock(&qemu_fair_mutex);
3904 qemu_mutex_lock(&qemu_global_mutex);
3905 qemu_mutex_unlock(&qemu_fair_mutex);
3907 qemu_signal_lock(100);
3910 static void qemu_mutex_unlock_iothread(void)
3912 qemu_mutex_unlock(&qemu_global_mutex);
3915 static int all_vcpus_paused(void)
3917 CPUState *penv = first_cpu;
3922 penv = (CPUState *)penv->next_cpu;
3928 static void pause_all_vcpus(void)
3930 CPUState *penv = first_cpu;
3934 qemu_thread_signal(penv->thread, SIGUSR1);
3935 qemu_cpu_kick(penv);
3936 penv = (CPUState *)penv->next_cpu;
3939 while (!all_vcpus_paused()) {
3940 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3943 qemu_thread_signal(penv->thread, SIGUSR1);
3944 penv = (CPUState *)penv->next_cpu;
3949 static void resume_all_vcpus(void)
3951 CPUState *penv = first_cpu;
3956 qemu_thread_signal(penv->thread, SIGUSR1);
3957 qemu_cpu_kick(penv);
3958 penv = (CPUState *)penv->next_cpu;
3962 static void tcg_init_vcpu(void *_env)
3964 CPUState *env = _env;
3965 /* share a single thread for all cpus with TCG */
3966 if (!tcg_cpu_thread) {
3967 env->thread = qemu_mallocz(sizeof(QemuThread));
3968 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3969 qemu_cond_init(env->halt_cond);
3970 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3971 while (env->created == 0)
3972 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3973 tcg_cpu_thread = env->thread;
3974 tcg_halt_cond = env->halt_cond;
3976 env->thread = tcg_cpu_thread;
3977 env->halt_cond = tcg_halt_cond;
3981 static void kvm_start_vcpu(CPUState *env)
3984 env->thread = qemu_mallocz(sizeof(QemuThread));
3985 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3986 qemu_cond_init(env->halt_cond);
3987 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3988 while (env->created == 0)
3989 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3992 void qemu_init_vcpu(void *_env)
3994 CPUState *env = _env;
3997 kvm_start_vcpu(env);
4002 void qemu_notify_event(void)
4004 qemu_event_increment();
4007 void vm_stop(int reason)
4010 qemu_thread_self(&me);
4012 if (!qemu_thread_equal(&me, &io_thread)) {
4013 qemu_system_vmstop_request(reason);
4015 * FIXME: should not return to device code in case
4016 * vm_stop() has been requested.
4018 if (cpu_single_env) {
4019 cpu_exit(cpu_single_env);
4020 cpu_single_env->stop = 1;
4031 static void host_main_loop_wait(int *timeout)
4037 /* XXX: need to suppress polling by better using win32 events */
4039 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
4040 ret |= pe->func(pe->opaque);
4044 WaitObjects *w = &wait_objects;
4046 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
4047 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
4048 if (w->func[ret - WAIT_OBJECT_0])
4049 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
4051 /* Check for additional signaled events */
4052 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
4054 /* Check if event is signaled */
4055 ret2 = WaitForSingleObject(w->events[i], 0);
4056 if(ret2 == WAIT_OBJECT_0) {
4058 w->func[i](w->opaque[i]);
4059 } else if (ret2 == WAIT_TIMEOUT) {
4061 err = GetLastError();
4062 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
4065 } else if (ret == WAIT_TIMEOUT) {
4067 err = GetLastError();
4068 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
4075 static void host_main_loop_wait(int *timeout)
4080 void main_loop_wait(int timeout)
4082 IOHandlerRecord *ioh;
4083 fd_set rfds, wfds, xfds;
4087 qemu_bh_update_timeout(&timeout);
4089 host_main_loop_wait(&timeout);
4091 /* poll any events */
4092 /* XXX: separate device handlers from system ones */
4097 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4101 (!ioh->fd_read_poll ||
4102 ioh->fd_read_poll(ioh->opaque) != 0)) {
4103 FD_SET(ioh->fd, &rfds);
4107 if (ioh->fd_write) {
4108 FD_SET(ioh->fd, &wfds);
4114 tv.tv_sec = timeout / 1000;
4115 tv.tv_usec = (timeout % 1000) * 1000;
4117 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4119 qemu_mutex_unlock_iothread();
4120 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4121 qemu_mutex_lock_iothread();
4123 IOHandlerRecord **pioh;
4125 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4126 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
4127 ioh->fd_read(ioh->opaque);
4129 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
4130 ioh->fd_write(ioh->opaque);
4134 /* remove deleted IO handlers */
4135 pioh = &first_io_handler;
4146 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
4148 /* rearm timer, if not periodic */
4149 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4150 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4151 qemu_rearm_alarm_timer(alarm_timer);
4154 /* vm time timers */
4156 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4157 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4158 qemu_get_clock(vm_clock));
4161 /* real time timers */
4162 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4163 qemu_get_clock(rt_clock));
4165 /* Check bottom-halves last in case any of the earlier events triggered
4171 static int qemu_cpu_exec(CPUState *env)
4174 #ifdef CONFIG_PROFILER
4178 #ifdef CONFIG_PROFILER
4179 ti = profile_getclock();
4184 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4185 env->icount_decr.u16.low = 0;
4186 env->icount_extra = 0;
4187 count = qemu_next_deadline();
4188 count = (count + (1 << icount_time_shift) - 1)
4189 >> icount_time_shift;
4190 qemu_icount += count;
4191 decr = (count > 0xffff) ? 0xffff : count;
4193 env->icount_decr.u16.low = decr;
4194 env->icount_extra = count;
4196 ret = cpu_exec(env);
4197 #ifdef CONFIG_PROFILER
4198 qemu_time += profile_getclock() - ti;
4201 /* Fold pending instructions back into the
4202 instruction counter, and clear the interrupt flag. */
4203 qemu_icount -= (env->icount_decr.u16.low
4204 + env->icount_extra);
4205 env->icount_decr.u32 = 0;
4206 env->icount_extra = 0;
4211 static void tcg_cpu_exec(void)
4215 if (next_cpu == NULL)
4216 next_cpu = first_cpu;
4217 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4218 CPUState *env = cur_cpu = next_cpu;
4222 if (timer_alarm_pending) {
4223 timer_alarm_pending = 0;
4226 if (cpu_can_run(env))
4227 ret = qemu_cpu_exec(env);
4228 if (ret == EXCP_DEBUG) {
4229 gdb_set_stop_cpu(env);
4230 debug_requested = 1;
4236 static int cpu_has_work(CPUState *env)
4244 if (qemu_cpu_has_work(env))
4249 static int tcg_has_work(void)
4253 for (env = first_cpu; env != NULL; env = env->next_cpu)
4254 if (cpu_has_work(env))
4259 static int qemu_calculate_timeout(void)
4261 #ifndef CONFIG_IOTHREAD
4266 else if (tcg_has_work())
4268 else if (!use_icount)
4271 /* XXX: use timeout computed from timers */
4274 /* Advance virtual time to the next event. */
4275 if (use_icount == 1) {
4276 /* When not using an adaptive execution frequency
4277 we tend to get badly out of sync with real time,
4278 so just delay for a reasonable amount of time. */
4281 delta = cpu_get_icount() - cpu_get_clock();
4284 /* If virtual time is ahead of real time then just
4286 timeout = (delta / 1000000) + 1;
4288 /* Wait for either IO to occur or the next
4290 add = qemu_next_deadline();
4291 /* We advance the timer before checking for IO.
4292 Limit the amount we advance so that early IO
4293 activity won't get the guest too far ahead. */
4297 add = (add + (1 << icount_time_shift) - 1)
4298 >> icount_time_shift;
4300 timeout = delta / 1000000;
4307 #else /* CONFIG_IOTHREAD */
4312 static int vm_can_run(void)
4314 if (powerdown_requested)
4316 if (reset_requested)
4318 if (shutdown_requested)
4320 if (debug_requested)
4325 static void main_loop(void)
4329 #ifdef CONFIG_IOTHREAD
4330 qemu_system_ready = 1;
4331 qemu_cond_broadcast(&qemu_system_cond);
4336 #ifdef CONFIG_PROFILER
4339 #ifndef CONFIG_IOTHREAD
4342 #ifdef CONFIG_PROFILER
4343 ti = profile_getclock();
4345 main_loop_wait(qemu_calculate_timeout());
4346 #ifdef CONFIG_PROFILER
4347 dev_time += profile_getclock() - ti;
4349 } while (vm_can_run());
4351 if (qemu_debug_requested())
4352 vm_stop(EXCP_DEBUG);
4353 if (qemu_shutdown_requested()) {
4360 if (qemu_reset_requested()) {
4362 qemu_system_reset();
4365 if (qemu_powerdown_requested())
4366 qemu_system_powerdown();
4367 if ((r = qemu_vmstop_requested()))
4373 static void version(void)
4375 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4378 static void help(int exitcode)
4381 printf("usage: %s [options] [disk_image]\n"
4383 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4385 #define DEF(option, opt_arg, opt_enum, opt_help) \
4387 #define DEFHEADING(text) stringify(text) "\n"
4388 #include "qemu-options.h"
4393 "During emulation, the following keys are useful:\n"
4394 "ctrl-alt-f toggle full screen\n"
4395 "ctrl-alt-n switch to virtual console 'n'\n"
4396 "ctrl-alt toggle mouse and keyboard grab\n"
4398 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4403 DEFAULT_NETWORK_SCRIPT,
4404 DEFAULT_NETWORK_DOWN_SCRIPT,
4406 DEFAULT_GDBSTUB_PORT,
4411 #define HAS_ARG 0x0001
4414 #define DEF(option, opt_arg, opt_enum, opt_help) \
4416 #define DEFHEADING(text)
4417 #include "qemu-options.h"
4423 typedef struct QEMUOption {
4429 static const QEMUOption qemu_options[] = {
4430 { "h", 0, QEMU_OPTION_h },
4431 #define DEF(option, opt_arg, opt_enum, opt_help) \
4432 { option, opt_arg, opt_enum },
4433 #define DEFHEADING(text)
4434 #include "qemu-options.h"
4442 struct soundhw soundhw[] = {
4443 #ifdef HAS_AUDIO_CHOICE
4444 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4450 { .init_isa = pcspk_audio_init }
4457 "Creative Sound Blaster 16",
4460 { .init_isa = SB16_init }
4464 #ifdef CONFIG_CS4231A
4470 { .init_isa = cs4231a_init }
4478 "Yamaha YMF262 (OPL3)",
4480 "Yamaha YM3812 (OPL2)",
4484 { .init_isa = Adlib_init }
4491 "Gravis Ultrasound GF1",
4494 { .init_isa = GUS_init }
4501 "Intel 82801AA AC97 Audio",
4504 { .init_pci = ac97_init }
4508 #ifdef CONFIG_ES1370
4511 "ENSONIQ AudioPCI ES1370",
4514 { .init_pci = es1370_init }
4518 #endif /* HAS_AUDIO_CHOICE */
4520 { NULL, NULL, 0, 0, { NULL } }
4523 static void select_soundhw (const char *optarg)
4527 if (*optarg == '?') {
4530 printf ("Valid sound card names (comma separated):\n");
4531 for (c = soundhw; c->name; ++c) {
4532 printf ("%-11s %s\n", c->name, c->descr);
4534 printf ("\n-soundhw all will enable all of the above\n");
4535 exit (*optarg != '?');
4543 if (!strcmp (optarg, "all")) {
4544 for (c = soundhw; c->name; ++c) {
4552 e = strchr (p, ',');
4553 l = !e ? strlen (p) : (size_t) (e - p);
4555 for (c = soundhw; c->name; ++c) {
4556 if (!strncmp (c->name, p, l)) {
4565 "Unknown sound card name (too big to show)\n");
4568 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4573 p += l + (e != NULL);
4577 goto show_valid_cards;
4582 static void select_vgahw (const char *p)
4586 cirrus_vga_enabled = 0;
4587 std_vga_enabled = 0;
4590 if (strstart(p, "std", &opts)) {
4591 std_vga_enabled = 1;
4592 } else if (strstart(p, "cirrus", &opts)) {
4593 cirrus_vga_enabled = 1;
4594 } else if (strstart(p, "vmware", &opts)) {
4596 } else if (strstart(p, "xenfb", &opts)) {
4598 } else if (!strstart(p, "none", &opts)) {
4600 fprintf(stderr, "Unknown vga type: %s\n", p);
4604 const char *nextopt;
4606 if (strstart(opts, ",retrace=", &nextopt)) {
4608 if (strstart(opts, "dumb", &nextopt))
4609 vga_retrace_method = VGA_RETRACE_DUMB;
4610 else if (strstart(opts, "precise", &nextopt))
4611 vga_retrace_method = VGA_RETRACE_PRECISE;
4612 else goto invalid_vga;
4613 } else goto invalid_vga;
4619 static int balloon_parse(const char *arg)
4624 if (!strcmp(arg, "none")) {
4626 } else if (!strncmp(arg, "virtio", 6)) {
4628 if (arg[6] == ',') {
4630 if (get_param_value(buf, sizeof(buf), "addr", p)) {
4631 virtio_balloon_devaddr = strdup(buf);
4642 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4644 exit(STATUS_CONTROL_C_EXIT);
4649 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4653 if(strlen(str) != 36)
4656 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4657 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4658 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4664 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4670 #define MAX_NET_CLIENTS 32
4674 static void termsig_handler(int signal)
4676 qemu_system_shutdown_request();
4679 static void sigchld_handler(int signal)
4681 waitpid(-1, NULL, WNOHANG);
4684 static void sighandler_setup(void)
4686 struct sigaction act;
4688 memset(&act, 0, sizeof(act));
4689 act.sa_handler = termsig_handler;
4690 sigaction(SIGINT, &act, NULL);
4691 sigaction(SIGHUP, &act, NULL);
4692 sigaction(SIGTERM, &act, NULL);
4694 act.sa_handler = sigchld_handler;
4695 act.sa_flags = SA_NOCLDSTOP;
4696 sigaction(SIGCHLD, &act, NULL);
4702 /* Look for support files in the same directory as the executable. */
4703 static char *find_datadir(const char *argv0)
4709 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4716 while (p != buf && *p != '\\')
4719 if (access(buf, R_OK) == 0) {
4720 return qemu_strdup(buf);
4726 /* Find a likely location for support files using the location of the binary.
4727 For installed binaries this will be "$bindir/../share/qemu". When
4728 running from the build tree this will be "$bindir/../pc-bios". */
4729 #define SHARE_SUFFIX "/share/qemu"
4730 #define BUILD_SUFFIX "/pc-bios"
4731 static char *find_datadir(const char *argv0)
4741 #if defined(__linux__)
4744 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4750 #elif defined(__FreeBSD__)
4753 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4760 /* If we don't have any way of figuring out the actual executable
4761 location then try argv[0]. */
4766 p = realpath(argv0, p);
4774 max_len = strlen(dir) +
4775 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4776 res = qemu_mallocz(max_len);
4777 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4778 if (access(res, R_OK)) {
4779 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4780 if (access(res, R_OK)) {
4794 char *qemu_find_file(int type, const char *name)
4800 /* If name contains path separators then try it as a straight path. */
4801 if ((strchr(name, '/') || strchr(name, '\\'))
4802 && access(name, R_OK) == 0) {
4803 return strdup(name);
4806 case QEMU_FILE_TYPE_BIOS:
4809 case QEMU_FILE_TYPE_KEYMAP:
4810 subdir = "keymaps/";
4815 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4816 buf = qemu_mallocz(len);
4817 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4818 if (access(buf, R_OK)) {
4825 struct device_config {
4827 DEV_GENERIC, /* -device */
4828 DEV_USB, /* -usbdevice */
4831 const char *cmdline;
4832 TAILQ_ENTRY(device_config) next;
4834 TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4836 static void add_device_config(int type, const char *cmdline)
4838 struct device_config *conf;
4840 conf = qemu_mallocz(sizeof(*conf));
4842 conf->cmdline = cmdline;
4843 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4846 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4848 struct device_config *conf;
4851 TAILQ_FOREACH(conf, &device_configs, next) {
4852 if (conf->type != type)
4854 rc = func(conf->cmdline);
4861 static int generic_parse(const char *cmdline)
4865 dev = qdev_device_add(cmdline);
4871 int main(int argc, char **argv, char **envp)
4873 const char *gdbstub_dev = NULL;
4874 uint32_t boot_devices_bitmap = 0;
4876 int snapshot, linux_boot, net_boot;
4877 const char *initrd_filename;
4878 const char *kernel_filename, *kernel_cmdline;
4879 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4881 DisplayChangeListener *dcl;
4882 int cyls, heads, secs, translation;
4883 const char *net_clients[MAX_NET_CLIENTS];
4887 const char *r, *optarg;
4888 CharDriverState *monitor_hd = NULL;
4889 const char *monitor_device;
4890 const char *serial_devices[MAX_SERIAL_PORTS];
4891 int serial_device_index;
4892 const char *parallel_devices[MAX_PARALLEL_PORTS];
4893 int parallel_device_index;
4894 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4895 int virtio_console_index;
4896 const char *loadvm = NULL;
4897 QEMUMachine *machine;
4898 const char *cpu_model;
4903 const char *pid_file = NULL;
4904 const char *incoming = NULL;
4907 struct passwd *pwd = NULL;
4908 const char *chroot_dir = NULL;
4909 const char *run_as = NULL;
4912 int show_vnc_port = 0;
4914 qemu_cache_utils_init(envp);
4916 LIST_INIT (&vm_change_state_head);
4919 struct sigaction act;
4920 sigfillset(&act.sa_mask);
4922 act.sa_handler = SIG_IGN;
4923 sigaction(SIGPIPE, &act, NULL);
4926 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4927 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4928 QEMU to run on a single CPU */
4933 h = GetCurrentProcess();
4934 if (GetProcessAffinityMask(h, &mask, &smask)) {
4935 for(i = 0; i < 32; i++) {
4936 if (mask & (1 << i))
4941 SetProcessAffinityMask(h, mask);
4947 module_call_init(MODULE_INIT_MACHINE);
4948 machine = find_default_machine();
4950 initrd_filename = NULL;
4953 kernel_filename = NULL;
4954 kernel_cmdline = "";
4955 cyls = heads = secs = 0;
4956 translation = BIOS_ATA_TRANSLATION_AUTO;
4957 monitor_device = "vc:80Cx24C";
4959 serial_devices[0] = "vc:80Cx24C";
4960 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4961 serial_devices[i] = NULL;
4962 serial_device_index = 0;
4964 parallel_devices[0] = "vc:80Cx24C";
4965 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4966 parallel_devices[i] = NULL;
4967 parallel_device_index = 0;
4969 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4970 virtio_consoles[i] = NULL;
4971 virtio_console_index = 0;
4973 for (i = 0; i < MAX_NODES; i++) {
4975 node_cpumask[i] = 0;
4988 register_watchdogs();
4996 hda_index = drive_add(argv[optind++], HD_ALIAS, 0);
4998 const QEMUOption *popt;
5001 /* Treat --foo the same as -foo. */
5004 popt = qemu_options;
5007 fprintf(stderr, "%s: invalid option -- '%s'\n",
5011 if (!strcmp(popt->name, r + 1))
5015 if (popt->flags & HAS_ARG) {
5016 if (optind >= argc) {
5017 fprintf(stderr, "%s: option '%s' requires an argument\n",
5021 optarg = argv[optind++];
5026 switch(popt->index) {
5028 machine = find_machine(optarg);
5031 printf("Supported machines are:\n");
5032 for(m = first_machine; m != NULL; m = m->next) {
5034 printf("%-10s %s (alias of %s)\n",
5035 m->alias, m->desc, m->name);
5036 printf("%-10s %s%s\n",
5038 m->is_default ? " (default)" : "");
5040 exit(*optarg != '?');
5043 case QEMU_OPTION_cpu:
5044 /* hw initialization will check this */
5045 if (*optarg == '?') {
5046 /* XXX: implement xxx_cpu_list for targets that still miss it */
5047 #if defined(cpu_list)
5048 cpu_list(stdout, &fprintf);
5055 case QEMU_OPTION_initrd:
5056 initrd_filename = optarg;
5058 case QEMU_OPTION_hda:
5060 hda_index = drive_add(optarg, HD_ALIAS, 0);
5062 hda_index = drive_add(optarg, HD_ALIAS
5063 ",cyls=%d,heads=%d,secs=%d%s",
5064 0, cyls, heads, secs,
5065 translation == BIOS_ATA_TRANSLATION_LBA ?
5067 translation == BIOS_ATA_TRANSLATION_NONE ?
5068 ",trans=none" : "");
5070 case QEMU_OPTION_hdb:
5071 case QEMU_OPTION_hdc:
5072 case QEMU_OPTION_hdd:
5073 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
5075 case QEMU_OPTION_drive:
5076 drive_add(NULL, "%s", optarg);
5078 case QEMU_OPTION_mtdblock:
5079 drive_add(optarg, MTD_ALIAS);
5081 case QEMU_OPTION_sd:
5082 drive_add(optarg, SD_ALIAS);
5084 case QEMU_OPTION_pflash:
5085 drive_add(optarg, PFLASH_ALIAS);
5087 case QEMU_OPTION_snapshot:
5090 case QEMU_OPTION_hdachs:
5094 cyls = strtol(p, (char **)&p, 0);
5095 if (cyls < 1 || cyls > 16383)
5100 heads = strtol(p, (char **)&p, 0);
5101 if (heads < 1 || heads > 16)
5106 secs = strtol(p, (char **)&p, 0);
5107 if (secs < 1 || secs > 63)
5111 if (!strcmp(p, "none"))
5112 translation = BIOS_ATA_TRANSLATION_NONE;
5113 else if (!strcmp(p, "lba"))
5114 translation = BIOS_ATA_TRANSLATION_LBA;
5115 else if (!strcmp(p, "auto"))
5116 translation = BIOS_ATA_TRANSLATION_AUTO;
5119 } else if (*p != '\0') {
5121 fprintf(stderr, "qemu: invalid physical CHS format\n");
5124 if (hda_index != -1)
5125 snprintf(drives_opt[hda_index].opt,
5126 sizeof(drives_opt[hda_index].opt),
5127 HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s",
5128 0, cyls, heads, secs,
5129 translation == BIOS_ATA_TRANSLATION_LBA ?
5131 translation == BIOS_ATA_TRANSLATION_NONE ?
5132 ",trans=none" : "");
5135 case QEMU_OPTION_numa:
5136 if (nb_numa_nodes >= MAX_NODES) {
5137 fprintf(stderr, "qemu: too many NUMA nodes\n");
5142 case QEMU_OPTION_nographic:
5143 display_type = DT_NOGRAPHIC;
5145 #ifdef CONFIG_CURSES
5146 case QEMU_OPTION_curses:
5147 display_type = DT_CURSES;
5150 case QEMU_OPTION_portrait:
5153 case QEMU_OPTION_kernel:
5154 kernel_filename = optarg;
5156 case QEMU_OPTION_append:
5157 kernel_cmdline = optarg;
5159 case QEMU_OPTION_cdrom:
5160 drive_add(optarg, CDROM_ALIAS);
5162 case QEMU_OPTION_boot:
5164 static const char * const params[] = {
5165 "order", "once", "menu", NULL
5167 char buf[sizeof(boot_devices)];
5168 char *standard_boot_devices;
5171 if (!strchr(optarg, '=')) {
5173 pstrcpy(buf, sizeof(buf), optarg);
5174 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5176 "qemu: unknown boot parameter '%s' in '%s'\n",
5182 get_param_value(buf, sizeof(buf), "order", optarg)) {
5183 boot_devices_bitmap = parse_bootdevices(buf);
5184 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5187 if (get_param_value(buf, sizeof(buf),
5189 boot_devices_bitmap |= parse_bootdevices(buf);
5190 standard_boot_devices = qemu_strdup(boot_devices);
5191 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5192 qemu_register_reset(restore_boot_devices,
5193 standard_boot_devices);
5195 if (get_param_value(buf, sizeof(buf),
5197 if (!strcmp(buf, "on")) {
5199 } else if (!strcmp(buf, "off")) {
5203 "qemu: invalid option value '%s'\n",
5211 case QEMU_OPTION_fda:
5212 case QEMU_OPTION_fdb:
5213 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5216 case QEMU_OPTION_no_fd_bootchk:
5220 case QEMU_OPTION_net:
5221 if (nb_net_clients >= MAX_NET_CLIENTS) {
5222 fprintf(stderr, "qemu: too many network clients\n");
5225 net_clients[nb_net_clients] = optarg;
5229 case QEMU_OPTION_tftp:
5230 legacy_tftp_prefix = optarg;
5232 case QEMU_OPTION_bootp:
5233 legacy_bootp_filename = optarg;
5236 case QEMU_OPTION_smb:
5237 net_slirp_smb(optarg);
5240 case QEMU_OPTION_redir:
5241 net_slirp_redir(optarg);
5244 case QEMU_OPTION_bt:
5245 add_device_config(DEV_BT, optarg);
5248 case QEMU_OPTION_audio_help:
5252 case QEMU_OPTION_soundhw:
5253 select_soundhw (optarg);
5259 case QEMU_OPTION_version:
5263 case QEMU_OPTION_m: {
5267 value = strtoul(optarg, &ptr, 10);
5269 case 0: case 'M': case 'm':
5276 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5280 /* On 32-bit hosts, QEMU is limited by virtual address space */
5281 if (value > (2047 << 20)
5282 #ifndef CONFIG_KQEMU
5283 && HOST_LONG_BITS == 32
5286 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5289 if (value != (uint64_t)(ram_addr_t)value) {
5290 fprintf(stderr, "qemu: ram size too large\n");
5299 const CPULogItem *item;
5301 mask = cpu_str_to_log_mask(optarg);
5303 printf("Log items (comma separated):\n");
5304 for(item = cpu_log_items; item->mask != 0; item++) {
5305 printf("%-10s %s\n", item->name, item->help);
5313 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5315 case QEMU_OPTION_gdb:
5316 gdbstub_dev = optarg;
5321 case QEMU_OPTION_bios:
5324 case QEMU_OPTION_singlestep:
5332 keyboard_layout = optarg;
5335 case QEMU_OPTION_localtime:
5338 case QEMU_OPTION_vga:
5339 select_vgahw (optarg);
5341 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5347 w = strtol(p, (char **)&p, 10);
5350 fprintf(stderr, "qemu: invalid resolution or depth\n");
5356 h = strtol(p, (char **)&p, 10);
5361 depth = strtol(p, (char **)&p, 10);
5362 if (depth != 8 && depth != 15 && depth != 16 &&
5363 depth != 24 && depth != 32)
5365 } else if (*p == '\0') {
5366 depth = graphic_depth;
5373 graphic_depth = depth;
5377 case QEMU_OPTION_echr:
5380 term_escape_char = strtol(optarg, &r, 0);
5382 printf("Bad argument to echr\n");
5385 case QEMU_OPTION_monitor:
5386 monitor_device = optarg;
5388 case QEMU_OPTION_serial:
5389 if (serial_device_index >= MAX_SERIAL_PORTS) {
5390 fprintf(stderr, "qemu: too many serial ports\n");
5393 serial_devices[serial_device_index] = optarg;
5394 serial_device_index++;
5396 case QEMU_OPTION_watchdog:
5397 i = select_watchdog(optarg);
5399 exit (i == 1 ? 1 : 0);
5401 case QEMU_OPTION_watchdog_action:
5402 if (select_watchdog_action(optarg) == -1) {
5403 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5407 case QEMU_OPTION_virtiocon:
5408 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5409 fprintf(stderr, "qemu: too many virtio consoles\n");
5412 virtio_consoles[virtio_console_index] = optarg;
5413 virtio_console_index++;
5415 case QEMU_OPTION_parallel:
5416 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5417 fprintf(stderr, "qemu: too many parallel ports\n");
5420 parallel_devices[parallel_device_index] = optarg;
5421 parallel_device_index++;
5423 case QEMU_OPTION_loadvm:
5426 case QEMU_OPTION_full_screen:
5430 case QEMU_OPTION_no_frame:
5433 case QEMU_OPTION_alt_grab:
5436 case QEMU_OPTION_no_quit:
5439 case QEMU_OPTION_sdl:
5440 display_type = DT_SDL;
5443 case QEMU_OPTION_pidfile:
5447 case QEMU_OPTION_win2k_hack:
5448 win2k_install_hack = 1;
5450 case QEMU_OPTION_rtc_td_hack:
5453 case QEMU_OPTION_acpitable:
5454 if(acpi_table_add(optarg) < 0) {
5455 fprintf(stderr, "Wrong acpi table provided\n");
5459 case QEMU_OPTION_smbios:
5460 if(smbios_entry_add(optarg) < 0) {
5461 fprintf(stderr, "Wrong smbios provided\n");
5467 case QEMU_OPTION_enable_kqemu:
5470 case QEMU_OPTION_kernel_kqemu:
5475 case QEMU_OPTION_enable_kvm:
5482 case QEMU_OPTION_usb:
5485 case QEMU_OPTION_usbdevice:
5487 add_device_config(DEV_USB, optarg);
5489 case QEMU_OPTION_device:
5490 add_device_config(DEV_GENERIC, optarg);
5492 case QEMU_OPTION_smp:
5493 smp_cpus = atoi(optarg);
5495 fprintf(stderr, "Invalid number of CPUs\n");
5499 case QEMU_OPTION_vnc:
5500 display_type = DT_VNC;
5501 vnc_display = optarg;
5504 case QEMU_OPTION_no_acpi:
5507 case QEMU_OPTION_no_hpet:
5510 case QEMU_OPTION_balloon:
5511 if (balloon_parse(optarg) < 0) {
5512 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5517 case QEMU_OPTION_no_reboot:
5520 case QEMU_OPTION_no_shutdown:
5523 case QEMU_OPTION_show_cursor:
5526 case QEMU_OPTION_uuid:
5527 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5528 fprintf(stderr, "Fail to parse UUID string."
5529 " Wrong format.\n");
5534 case QEMU_OPTION_daemonize:
5538 case QEMU_OPTION_option_rom:
5539 if (nb_option_roms >= MAX_OPTION_ROMS) {
5540 fprintf(stderr, "Too many option ROMs\n");
5543 option_rom[nb_option_roms] = optarg;
5546 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5547 case QEMU_OPTION_semihosting:
5548 semihosting_enabled = 1;
5551 case QEMU_OPTION_name:
5552 qemu_name = qemu_strdup(optarg);
5554 char *p = strchr(qemu_name, ',');
5557 if (strncmp(p, "process=", 8)) {
5558 fprintf(stderr, "Unknown subargument %s to -name", p);
5566 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5567 case QEMU_OPTION_prom_env:
5568 if (nb_prom_envs >= MAX_PROM_ENVS) {
5569 fprintf(stderr, "Too many prom variables\n");
5572 prom_envs[nb_prom_envs] = optarg;
5577 case QEMU_OPTION_old_param:
5581 case QEMU_OPTION_clock:
5582 configure_alarms(optarg);
5584 case QEMU_OPTION_startdate:
5587 time_t rtc_start_date;
5588 if (!strcmp(optarg, "now")) {
5589 rtc_date_offset = -1;
5591 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5599 } else if (sscanf(optarg, "%d-%d-%d",
5602 &tm.tm_mday) == 3) {
5611 rtc_start_date = mktimegm(&tm);
5612 if (rtc_start_date == -1) {
5614 fprintf(stderr, "Invalid date format. Valid format are:\n"
5615 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5618 rtc_date_offset = time(NULL) - rtc_start_date;
5622 case QEMU_OPTION_tb_size:
5623 tb_size = strtol(optarg, NULL, 0);
5627 case QEMU_OPTION_icount:
5629 if (strcmp(optarg, "auto") == 0) {
5630 icount_time_shift = -1;
5632 icount_time_shift = strtol(optarg, NULL, 0);
5635 case QEMU_OPTION_incoming:
5639 case QEMU_OPTION_chroot:
5640 chroot_dir = optarg;
5642 case QEMU_OPTION_runas:
5647 case QEMU_OPTION_xen_domid:
5648 xen_domid = atoi(optarg);
5650 case QEMU_OPTION_xen_create:
5651 xen_mode = XEN_CREATE;
5653 case QEMU_OPTION_xen_attach:
5654 xen_mode = XEN_ATTACH;
5661 /* If no data_dir is specified then try to find it relative to the
5664 data_dir = find_datadir(argv[0]);
5666 /* If all else fails use the install patch specified when building. */
5668 data_dir = CONFIG_QEMU_SHAREDIR;
5671 #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU)
5672 if (kvm_allowed && kqemu_allowed) {
5674 "You can not enable both KVM and kqemu at the same time\n");
5679 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5680 if (smp_cpus > machine->max_cpus) {
5681 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5682 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5687 if (display_type == DT_NOGRAPHIC) {
5688 if (serial_device_index == 0)
5689 serial_devices[0] = "stdio";
5690 if (parallel_device_index == 0)
5691 parallel_devices[0] = "null";
5692 if (strncmp(monitor_device, "vc", 2) == 0)
5693 monitor_device = "stdio";
5700 if (pipe(fds) == -1)
5711 len = read(fds[0], &status, 1);
5712 if (len == -1 && (errno == EINTR))
5717 else if (status == 1) {
5718 fprintf(stderr, "Could not acquire pidfile\n");
5735 signal(SIGTSTP, SIG_IGN);
5736 signal(SIGTTOU, SIG_IGN);
5737 signal(SIGTTIN, SIG_IGN);
5740 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5743 write(fds[1], &status, 1);
5745 fprintf(stderr, "Could not acquire pid file\n");
5754 if (qemu_init_main_loop()) {
5755 fprintf(stderr, "qemu_init_main_loop failed\n");
5758 linux_boot = (kernel_filename != NULL);
5760 if (!linux_boot && *kernel_cmdline != '\0') {
5761 fprintf(stderr, "-append only allowed with -kernel option\n");
5765 if (!linux_boot && initrd_filename != NULL) {
5766 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5770 setvbuf(stdout, NULL, _IOLBF, 0);
5773 if (init_timer_alarm() < 0) {
5774 fprintf(stderr, "could not initialize alarm timer\n");
5777 if (use_icount && icount_time_shift < 0) {
5779 /* 125MIPS seems a reasonable initial guess at the guest speed.
5780 It will be corrected fairly quickly anyway. */
5781 icount_time_shift = 3;
5782 init_icount_adjust();
5789 /* init network clients */
5790 if (nb_net_clients == 0) {
5791 /* if no clients, we use a default config */
5792 net_clients[nb_net_clients++] = "nic";
5794 net_clients[nb_net_clients++] = "user";
5798 for(i = 0;i < nb_net_clients; i++) {
5799 if (net_client_parse(net_clients[i]) < 0)
5803 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5804 net_set_boot_mask(net_boot);
5808 /* init the bluetooth world */
5809 if (foreach_device_config(DEV_BT, bt_parse))
5812 /* init the memory */
5814 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5817 /* FIXME: This is a nasty hack because kqemu can't cope with dynamic
5818 guest ram allocation. It needs to go away. */
5819 if (kqemu_allowed) {
5820 kqemu_phys_ram_size = ram_size + 8 * 1024 * 1024 + 4 * 1024 * 1024;
5821 kqemu_phys_ram_base = qemu_vmalloc(kqemu_phys_ram_size);
5822 if (!kqemu_phys_ram_base) {
5823 fprintf(stderr, "Could not allocate physical memory\n");
5829 /* init the dynamic translator */
5830 cpu_exec_init_all(tb_size * 1024 * 1024);
5834 /* we always create the cdrom drive, even if no disk is there */
5836 if (nb_drives_opt < MAX_DRIVES)
5837 drive_add(NULL, CDROM_ALIAS);
5839 /* we always create at least one floppy */
5841 if (nb_drives_opt < MAX_DRIVES)
5842 drive_add(NULL, FD_ALIAS, 0);
5844 /* we always create one sd slot, even if no card is in it */
5846 if (nb_drives_opt < MAX_DRIVES)
5847 drive_add(NULL, SD_ALIAS);
5849 /* open the virtual block devices */
5851 for(i = 0; i < nb_drives_opt; i++) {
5853 if (drive_init(&drives_opt[i], snapshot, machine, &fatal_error) == NULL)
5858 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
5859 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5862 /* must be after terminal init, SDL library changes signal handlers */
5866 /* Maintain compatibility with multiple stdio monitors */
5867 if (!strcmp(monitor_device,"stdio")) {
5868 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5869 const char *devname = serial_devices[i];
5870 if (devname && !strcmp(devname,"mon:stdio")) {
5871 monitor_device = NULL;
5873 } else if (devname && !strcmp(devname,"stdio")) {
5874 monitor_device = NULL;
5875 serial_devices[i] = "mon:stdio";
5881 if (nb_numa_nodes > 0) {
5884 if (nb_numa_nodes > smp_cpus) {
5885 nb_numa_nodes = smp_cpus;
5888 /* If no memory size if given for any node, assume the default case
5889 * and distribute the available memory equally across all nodes
5891 for (i = 0; i < nb_numa_nodes; i++) {
5892 if (node_mem[i] != 0)
5895 if (i == nb_numa_nodes) {
5896 uint64_t usedmem = 0;
5898 /* On Linux, the each node's border has to be 8MB aligned,
5899 * the final node gets the rest.
5901 for (i = 0; i < nb_numa_nodes - 1; i++) {
5902 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5903 usedmem += node_mem[i];
5905 node_mem[i] = ram_size - usedmem;
5908 for (i = 0; i < nb_numa_nodes; i++) {
5909 if (node_cpumask[i] != 0)
5912 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5913 * must cope with this anyway, because there are BIOSes out there in
5914 * real machines which also use this scheme.
5916 if (i == nb_numa_nodes) {
5917 for (i = 0; i < smp_cpus; i++) {
5918 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5923 if (kvm_enabled()) {
5926 ret = kvm_init(smp_cpus);
5928 fprintf(stderr, "failed to initialize KVM\n");
5933 if (monitor_device) {
5934 monitor_hd = qemu_chr_open("monitor", monitor_device, NULL);
5936 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
5941 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5942 const char *devname = serial_devices[i];
5943 if (devname && strcmp(devname, "none")) {
5945 snprintf(label, sizeof(label), "serial%d", i);
5946 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5947 if (!serial_hds[i]) {
5948 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5955 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5956 const char *devname = parallel_devices[i];
5957 if (devname && strcmp(devname, "none")) {
5959 snprintf(label, sizeof(label), "parallel%d", i);
5960 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5961 if (!parallel_hds[i]) {
5962 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5969 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5970 const char *devname = virtio_consoles[i];
5971 if (devname && strcmp(devname, "none")) {
5973 snprintf(label, sizeof(label), "virtcon%d", i);
5974 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5975 if (!virtcon_hds[i]) {
5976 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5983 module_call_init(MODULE_INIT_DEVICE);
5985 if (machine->compat_props) {
5986 qdev_prop_register_compat(machine->compat_props);
5988 machine->init(ram_size, boot_devices,
5989 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5992 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5993 for (i = 0; i < nb_numa_nodes; i++) {
5994 if (node_cpumask[i] & (1 << env->cpu_index)) {
6000 current_machine = machine;
6002 /* init USB devices */
6004 foreach_device_config(DEV_USB, usb_parse);
6007 /* init generic devices */
6008 if (foreach_device_config(DEV_GENERIC, generic_parse))
6012 dumb_display_init();
6013 /* just use the first displaystate for the moment */
6016 if (display_type == DT_DEFAULT) {
6017 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
6018 display_type = DT_SDL;
6020 display_type = DT_VNC;
6021 vnc_display = "localhost:0,to=99";
6027 switch (display_type) {
6030 #if defined(CONFIG_CURSES)
6032 curses_display_init(ds, full_screen);
6035 #if defined(CONFIG_SDL)
6037 sdl_display_init(ds, full_screen, no_frame);
6039 #elif defined(CONFIG_COCOA)
6041 cocoa_display_init(ds, full_screen);
6045 vnc_display_init(ds);
6046 if (vnc_display_open(ds, vnc_display) < 0)
6049 if (show_vnc_port) {
6050 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
6058 dcl = ds->listeners;
6059 while (dcl != NULL) {
6060 if (dcl->dpy_refresh != NULL) {
6061 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
6062 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
6067 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
6068 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
6069 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
6072 text_consoles_set_display(display_state);
6073 qemu_chr_initial_reset();
6075 if (monitor_device && monitor_hd)
6076 monitor_init(monitor_hd, MONITOR_USE_READLINE | MONITOR_IS_DEFAULT);
6078 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
6079 const char *devname = serial_devices[i];
6080 if (devname && strcmp(devname, "none")) {
6081 if (strstart(devname, "vc", 0))
6082 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
6086 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
6087 const char *devname = parallel_devices[i];
6088 if (devname && strcmp(devname, "none")) {
6089 if (strstart(devname, "vc", 0))
6090 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
6094 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
6095 const char *devname = virtio_consoles[i];
6096 if (virtcon_hds[i] && devname) {
6097 if (strstart(devname, "vc", 0))
6098 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
6102 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6103 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6109 do_loadvm(cur_mon, loadvm);
6112 qemu_start_incoming_migration(incoming);
6123 len = write(fds[1], &status, 1);
6124 if (len == -1 && (errno == EINTR))
6131 TFR(fd = open("/dev/null", O_RDWR));
6137 pwd = getpwnam(run_as);
6139 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6145 if (chroot(chroot_dir) < 0) {
6146 fprintf(stderr, "chroot failed\n");
6153 if (setgid(pwd->pw_gid) < 0) {
6154 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6157 if (setuid(pwd->pw_uid) < 0) {
6158 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6161 if (setuid(0) != -1) {
6162 fprintf(stderr, "Dropping privileges failed\n");