4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
38 #include <sys/times.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
47 #include <arpa/inet.h>
50 #include <sys/select.h>
53 #if defined(__FreeBSD__) || defined(__DragonFly__)
58 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
59 #include <freebsd/stdlib.h>
64 #include <linux/rtc.h>
65 #include <sys/prctl.h>
67 /* For the benefit of older linux systems which don't supply it,
68 we use a local copy of hpet.h. */
69 /* #include <linux/hpet.h> */
72 #include <linux/ppdev.h>
73 #include <linux/parport.h>
77 #include <sys/ethernet.h>
78 #include <sys/sockio.h>
79 #include <netinet/arp.h>
80 #include <netinet/in.h>
81 #include <netinet/in_systm.h>
82 #include <netinet/ip.h>
83 #include <netinet/ip_icmp.h> // must come after ip.h
84 #include <netinet/udp.h>
85 #include <netinet/tcp.h>
89 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
90 discussion about Solaris header problems */
91 extern int madvise(caddr_t, size_t, int);
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
106 #include <mmsystem.h>
110 #if defined(__APPLE__) || defined(main)
112 int qemu_main(int argc, char **argv, char **envp);
113 int main(int argc, char **argv)
115 return qemu_main(argc, argv, NULL);
118 #define main qemu_main
120 #endif /* CONFIG_SDL */
124 #define main qemu_main
125 #endif /* CONFIG_COCOA */
128 #include "hw/boards.h"
130 #include "hw/pcmcia.h"
132 #include "hw/audiodev.h"
136 #include "hw/watchdog.h"
137 #include "hw/smbios.h"
140 #include "hw/loader.h"
147 #include "qemu-timer.h"
148 #include "qemu-char.h"
149 #include "cache-utils.h"
152 #include "audio/audio.h"
153 #include "migration.h"
156 #include "qemu-option.h"
157 #include "qemu-config.h"
161 #include "exec-all.h"
163 #include "qemu_socket.h"
165 #include "slirp/libslirp.h"
167 #include "qemu-queue.h"
170 //#define DEBUG_SLIRP
172 #define DEFAULT_RAM_SIZE 128
174 /* Maximum number of monitor devices */
175 #define MAX_MONITOR_DEVICES 10
177 static const char *data_dir;
178 const char *bios_name = NULL;
179 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
180 to store the VM snapshots */
181 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
182 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
183 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
184 static DisplayState *display_state;
185 DisplayType display_type = DT_DEFAULT;
186 const char* keyboard_layout = NULL;
189 NICInfo nd_table[MAX_NICS];
192 static int rtc_utc = 1;
193 static int rtc_date_offset = -1; /* -1 means no change */
194 QEMUClock *rtc_clock;
195 int vga_interface_type = VGA_CIRRUS;
197 int graphic_width = 1024;
198 int graphic_height = 768;
199 int graphic_depth = 8;
201 int graphic_width = 800;
202 int graphic_height = 600;
203 int graphic_depth = 15;
205 static int full_screen = 0;
207 static int no_frame = 0;
210 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
211 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
212 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
214 int win2k_install_hack = 0;
223 const char *vnc_display;
224 int acpi_enabled = 1;
230 int graphic_rotate = 0;
231 uint8_t irq0override = 1;
235 const char *watchdog;
236 const char *option_rom[MAX_OPTION_ROMS];
238 int semihosting_enabled = 0;
242 const char *qemu_name;
245 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
246 unsigned int nb_prom_envs = 0;
247 const char *prom_envs[MAX_PROM_ENVS];
252 uint64_t node_mem[MAX_NODES];
253 uint64_t node_cpumask[MAX_NODES];
255 static CPUState *cur_cpu;
256 static CPUState *next_cpu;
257 static int timer_alarm_pending = 1;
258 /* Conversion factor from emulated instructions to virtual clock ticks. */
259 static int icount_time_shift;
260 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
261 #define MAX_ICOUNT_SHIFT 10
262 /* Compensate for varying guest execution speed. */
263 static int64_t qemu_icount_bias;
264 static QEMUTimer *icount_rt_timer;
265 static QEMUTimer *icount_vm_timer;
266 static QEMUTimer *nographic_timer;
268 uint8_t qemu_uuid[16];
270 static QEMUBootSetHandler *boot_set_handler;
271 static void *boot_set_opaque;
273 /***********************************************************/
274 /* x86 ISA bus support */
276 target_phys_addr_t isa_mem_base = 0;
279 /***********************************************************/
280 void hw_error(const char *fmt, ...)
286 fprintf(stderr, "qemu: hardware error: ");
287 vfprintf(stderr, fmt, ap);
288 fprintf(stderr, "\n");
289 for(env = first_cpu; env != NULL; env = env->next_cpu) {
290 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
292 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
294 cpu_dump_state(env, stderr, fprintf, 0);
301 static void set_proc_name(const char *s)
303 #if defined(__linux__) && defined(PR_SET_NAME)
307 name[sizeof(name) - 1] = 0;
308 strncpy(name, s, sizeof(name));
309 /* Could rewrite argv[0] too, but that's a bit more complicated.
310 This simple way is enough for `top'. */
311 prctl(PR_SET_NAME, name);
318 static QEMUBalloonEvent *qemu_balloon_event;
319 void *qemu_balloon_event_opaque;
321 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
323 qemu_balloon_event = func;
324 qemu_balloon_event_opaque = opaque;
327 void qemu_balloon(ram_addr_t target)
329 if (qemu_balloon_event)
330 qemu_balloon_event(qemu_balloon_event_opaque, target);
333 ram_addr_t qemu_balloon_status(void)
335 if (qemu_balloon_event)
336 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
340 /***********************************************************/
343 static QEMUPutKBDEvent *qemu_put_kbd_event;
344 static void *qemu_put_kbd_event_opaque;
345 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
346 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
348 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
350 qemu_put_kbd_event_opaque = opaque;
351 qemu_put_kbd_event = func;
354 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
355 void *opaque, int absolute,
358 QEMUPutMouseEntry *s, *cursor;
360 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
362 s->qemu_put_mouse_event = func;
363 s->qemu_put_mouse_event_opaque = opaque;
364 s->qemu_put_mouse_event_absolute = absolute;
365 s->qemu_put_mouse_event_name = qemu_strdup(name);
368 if (!qemu_put_mouse_event_head) {
369 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
373 cursor = qemu_put_mouse_event_head;
374 while (cursor->next != NULL)
375 cursor = cursor->next;
378 qemu_put_mouse_event_current = s;
383 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
385 QEMUPutMouseEntry *prev = NULL, *cursor;
387 if (!qemu_put_mouse_event_head || entry == NULL)
390 cursor = qemu_put_mouse_event_head;
391 while (cursor != NULL && cursor != entry) {
393 cursor = cursor->next;
396 if (cursor == NULL) // does not exist or list empty
398 else if (prev == NULL) { // entry is head
399 qemu_put_mouse_event_head = cursor->next;
400 if (qemu_put_mouse_event_current == entry)
401 qemu_put_mouse_event_current = cursor->next;
402 qemu_free(entry->qemu_put_mouse_event_name);
407 prev->next = entry->next;
409 if (qemu_put_mouse_event_current == entry)
410 qemu_put_mouse_event_current = prev;
412 qemu_free(entry->qemu_put_mouse_event_name);
416 void kbd_put_keycode(int keycode)
418 if (qemu_put_kbd_event) {
419 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
423 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
425 QEMUPutMouseEvent *mouse_event;
426 void *mouse_event_opaque;
429 if (!qemu_put_mouse_event_current) {
434 qemu_put_mouse_event_current->qemu_put_mouse_event;
436 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
439 if (graphic_rotate) {
440 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
443 width = graphic_width - 1;
444 mouse_event(mouse_event_opaque,
445 width - dy, dx, dz, buttons_state);
447 mouse_event(mouse_event_opaque,
448 dx, dy, dz, buttons_state);
452 int kbd_mouse_is_absolute(void)
454 if (!qemu_put_mouse_event_current)
457 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
460 void do_info_mice(Monitor *mon)
462 QEMUPutMouseEntry *cursor;
465 if (!qemu_put_mouse_event_head) {
466 monitor_printf(mon, "No mouse devices connected\n");
470 monitor_printf(mon, "Mouse devices available:\n");
471 cursor = qemu_put_mouse_event_head;
472 while (cursor != NULL) {
473 monitor_printf(mon, "%c Mouse #%d: %s\n",
474 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
475 index, cursor->qemu_put_mouse_event_name);
477 cursor = cursor->next;
481 void do_mouse_set(Monitor *mon, const QDict *qdict)
483 QEMUPutMouseEntry *cursor;
485 int index = qdict_get_int(qdict, "index");
487 if (!qemu_put_mouse_event_head) {
488 monitor_printf(mon, "No mouse devices connected\n");
492 cursor = qemu_put_mouse_event_head;
493 while (cursor != NULL && index != i) {
495 cursor = cursor->next;
499 qemu_put_mouse_event_current = cursor;
501 monitor_printf(mon, "Mouse at given index not found\n");
504 /* compute with 96 bit intermediate result: (a*b)/c */
505 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
510 #ifdef HOST_WORDS_BIGENDIAN
520 rl = (uint64_t)u.l.low * (uint64_t)b;
521 rh = (uint64_t)u.l.high * (uint64_t)b;
524 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
528 /***********************************************************/
529 /* real time host monotonic timer */
531 static int64_t get_clock_realtime(void)
535 gettimeofday(&tv, NULL);
536 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
541 static int64_t clock_freq;
543 static void init_get_clock(void)
547 ret = QueryPerformanceFrequency(&freq);
549 fprintf(stderr, "Could not calibrate ticks\n");
552 clock_freq = freq.QuadPart;
555 static int64_t get_clock(void)
558 QueryPerformanceCounter(&ti);
559 return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
564 static int use_rt_clock;
566 static void init_get_clock(void)
569 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
570 || defined(__DragonFly__)
573 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
580 static int64_t get_clock(void)
582 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
583 || defined(__DragonFly__)
586 clock_gettime(CLOCK_MONOTONIC, &ts);
587 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
591 /* XXX: using gettimeofday leads to problems if the date
592 changes, so it should be avoided. */
593 return get_clock_realtime();
598 /* Return the virtual CPU time, based on the instruction counter. */
599 static int64_t cpu_get_icount(void)
602 CPUState *env = cpu_single_env;;
603 icount = qemu_icount;
606 fprintf(stderr, "Bad clock read\n");
607 icount -= (env->icount_decr.u16.low + env->icount_extra);
609 return qemu_icount_bias + (icount << icount_time_shift);
612 /***********************************************************/
613 /* guest cycle counter */
615 typedef struct TimersState {
616 int64_t cpu_ticks_prev;
617 int64_t cpu_ticks_offset;
618 int64_t cpu_clock_offset;
619 int32_t cpu_ticks_enabled;
623 TimersState timers_state;
625 /* return the host CPU cycle counter and handle stop/restart */
626 int64_t cpu_get_ticks(void)
629 return cpu_get_icount();
631 if (!timers_state.cpu_ticks_enabled) {
632 return timers_state.cpu_ticks_offset;
635 ticks = cpu_get_real_ticks();
636 if (timers_state.cpu_ticks_prev > ticks) {
637 /* Note: non increasing ticks may happen if the host uses
639 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
641 timers_state.cpu_ticks_prev = ticks;
642 return ticks + timers_state.cpu_ticks_offset;
646 /* return the host CPU monotonic timer and handle stop/restart */
647 static int64_t cpu_get_clock(void)
650 if (!timers_state.cpu_ticks_enabled) {
651 return timers_state.cpu_clock_offset;
654 return ti + timers_state.cpu_clock_offset;
658 /* enable cpu_get_ticks() */
659 void cpu_enable_ticks(void)
661 if (!timers_state.cpu_ticks_enabled) {
662 timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
663 timers_state.cpu_clock_offset -= get_clock();
664 timers_state.cpu_ticks_enabled = 1;
668 /* disable cpu_get_ticks() : the clock is stopped. You must not call
669 cpu_get_ticks() after that. */
670 void cpu_disable_ticks(void)
672 if (timers_state.cpu_ticks_enabled) {
673 timers_state.cpu_ticks_offset = cpu_get_ticks();
674 timers_state.cpu_clock_offset = cpu_get_clock();
675 timers_state.cpu_ticks_enabled = 0;
679 /***********************************************************/
682 #define QEMU_CLOCK_REALTIME 0
683 #define QEMU_CLOCK_VIRTUAL 1
684 #define QEMU_CLOCK_HOST 2
688 /* XXX: add frequency */
696 struct QEMUTimer *next;
699 struct qemu_alarm_timer {
703 int (*start)(struct qemu_alarm_timer *t);
704 void (*stop)(struct qemu_alarm_timer *t);
705 void (*rearm)(struct qemu_alarm_timer *t);
709 #define ALARM_FLAG_DYNTICKS 0x1
710 #define ALARM_FLAG_EXPIRED 0x2
712 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
714 return t && (t->flags & ALARM_FLAG_DYNTICKS);
717 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
719 if (!alarm_has_dynticks(t))
725 /* TODO: MIN_TIMER_REARM_US should be optimized */
726 #define MIN_TIMER_REARM_US 250
728 static struct qemu_alarm_timer *alarm_timer;
732 struct qemu_alarm_win32 {
735 } alarm_win32_data = {0, -1};
737 static int win32_start_timer(struct qemu_alarm_timer *t);
738 static void win32_stop_timer(struct qemu_alarm_timer *t);
739 static void win32_rearm_timer(struct qemu_alarm_timer *t);
743 static int unix_start_timer(struct qemu_alarm_timer *t);
744 static void unix_stop_timer(struct qemu_alarm_timer *t);
748 static int dynticks_start_timer(struct qemu_alarm_timer *t);
749 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
750 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
752 static int hpet_start_timer(struct qemu_alarm_timer *t);
753 static void hpet_stop_timer(struct qemu_alarm_timer *t);
755 static int rtc_start_timer(struct qemu_alarm_timer *t);
756 static void rtc_stop_timer(struct qemu_alarm_timer *t);
758 #endif /* __linux__ */
762 /* Correlation between real and virtual time is always going to be
763 fairly approximate, so ignore small variation.
764 When the guest is idle real and virtual time will be aligned in
766 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
768 static void icount_adjust(void)
773 static int64_t last_delta;
774 /* If the VM is not running, then do nothing. */
778 cur_time = cpu_get_clock();
779 cur_icount = qemu_get_clock(vm_clock);
780 delta = cur_icount - cur_time;
781 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
783 && last_delta + ICOUNT_WOBBLE < delta * 2
784 && icount_time_shift > 0) {
785 /* The guest is getting too far ahead. Slow time down. */
789 && last_delta - ICOUNT_WOBBLE > delta * 2
790 && icount_time_shift < MAX_ICOUNT_SHIFT) {
791 /* The guest is getting too far behind. Speed time up. */
795 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
798 static void icount_adjust_rt(void * opaque)
800 qemu_mod_timer(icount_rt_timer,
801 qemu_get_clock(rt_clock) + 1000);
805 static void icount_adjust_vm(void * opaque)
807 qemu_mod_timer(icount_vm_timer,
808 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
812 static void init_icount_adjust(void)
814 /* Have both realtime and virtual time triggers for speed adjustment.
815 The realtime trigger catches emulated time passing too slowly,
816 the virtual time trigger catches emulated time passing too fast.
817 Realtime triggers occur even when idle, so use them less frequently
819 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
820 qemu_mod_timer(icount_rt_timer,
821 qemu_get_clock(rt_clock) + 1000);
822 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
823 qemu_mod_timer(icount_vm_timer,
824 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
827 static struct qemu_alarm_timer alarm_timers[] = {
830 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
831 dynticks_stop_timer, dynticks_rearm_timer, NULL},
832 /* HPET - if available - is preferred */
833 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
834 /* ...otherwise try RTC */
835 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
837 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
839 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
840 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
841 {"win32", 0, win32_start_timer,
842 win32_stop_timer, NULL, &alarm_win32_data},
847 static void show_available_alarms(void)
851 printf("Available alarm timers, in order of precedence:\n");
852 for (i = 0; alarm_timers[i].name; i++)
853 printf("%s\n", alarm_timers[i].name);
856 static void configure_alarms(char const *opt)
860 int count = ARRAY_SIZE(alarm_timers) - 1;
863 struct qemu_alarm_timer tmp;
865 if (!strcmp(opt, "?")) {
866 show_available_alarms();
870 arg = qemu_strdup(opt);
872 /* Reorder the array */
873 name = strtok(arg, ",");
875 for (i = 0; i < count && alarm_timers[i].name; i++) {
876 if (!strcmp(alarm_timers[i].name, name))
881 fprintf(stderr, "Unknown clock %s\n", name);
890 tmp = alarm_timers[i];
891 alarm_timers[i] = alarm_timers[cur];
892 alarm_timers[cur] = tmp;
896 name = strtok(NULL, ",");
902 /* Disable remaining timers */
903 for (i = cur; i < count; i++)
904 alarm_timers[i].name = NULL;
906 show_available_alarms();
911 #define QEMU_NUM_CLOCKS 3
915 QEMUClock *host_clock;
917 static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
919 static QEMUClock *qemu_new_clock(int type)
922 clock = qemu_mallocz(sizeof(QEMUClock));
927 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
931 ts = qemu_mallocz(sizeof(QEMUTimer));
938 void qemu_free_timer(QEMUTimer *ts)
943 /* stop a timer, but do not dealloc it */
944 void qemu_del_timer(QEMUTimer *ts)
948 /* NOTE: this code must be signal safe because
949 qemu_timer_expired() can be called from a signal. */
950 pt = &active_timers[ts->clock->type];
963 /* modify the current timer so that it will be fired when current_time
964 >= expire_time. The corresponding callback will be called. */
965 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
971 /* add the timer in the sorted list */
972 /* NOTE: this code must be signal safe because
973 qemu_timer_expired() can be called from a signal. */
974 pt = &active_timers[ts->clock->type];
979 if (t->expire_time > expire_time)
983 ts->expire_time = expire_time;
987 /* Rearm if necessary */
988 if (pt == &active_timers[ts->clock->type]) {
989 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
990 qemu_rearm_alarm_timer(alarm_timer);
992 /* Interrupt execution to force deadline recalculation. */
998 int qemu_timer_pending(QEMUTimer *ts)
1001 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
1008 int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1012 return (timer_head->expire_time <= current_time);
1015 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1021 if (!ts || ts->expire_time > current_time)
1023 /* remove timer from the list before calling the callback */
1024 *ptimer_head = ts->next;
1027 /* run the callback (the timer list can be modified) */
1032 int64_t qemu_get_clock(QEMUClock *clock)
1034 switch(clock->type) {
1035 case QEMU_CLOCK_REALTIME:
1036 return get_clock() / 1000000;
1038 case QEMU_CLOCK_VIRTUAL:
1040 return cpu_get_icount();
1042 return cpu_get_clock();
1044 case QEMU_CLOCK_HOST:
1045 return get_clock_realtime();
1049 static void init_clocks(void)
1052 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
1053 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
1054 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
1056 rtc_clock = host_clock;
1060 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1062 uint64_t expire_time;
1064 if (qemu_timer_pending(ts)) {
1065 expire_time = ts->expire_time;
1069 qemu_put_be64(f, expire_time);
1072 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1074 uint64_t expire_time;
1076 expire_time = qemu_get_be64(f);
1077 if (expire_time != -1) {
1078 qemu_mod_timer(ts, expire_time);
1084 static const VMStateDescription vmstate_timers = {
1087 .minimum_version_id = 1,
1088 .minimum_version_id_old = 1,
1089 .fields = (VMStateField []) {
1090 VMSTATE_INT64(cpu_ticks_offset, TimersState),
1091 VMSTATE_INT64(dummy, TimersState),
1092 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
1093 VMSTATE_END_OF_LIST()
1097 static void qemu_event_increment(void);
1100 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1101 DWORD_PTR dwUser, DWORD_PTR dw1,
1104 static void host_alarm_handler(int host_signum)
1108 #define DISP_FREQ 1000
1110 static int64_t delta_min = INT64_MAX;
1111 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1113 ti = qemu_get_clock(vm_clock);
1114 if (last_clock != 0) {
1115 delta = ti - last_clock;
1116 if (delta < delta_min)
1118 if (delta > delta_max)
1121 if (++count == DISP_FREQ) {
1122 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1123 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1124 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1125 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1126 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
1128 delta_min = INT64_MAX;
1136 if (alarm_has_dynticks(alarm_timer) ||
1138 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
1139 qemu_get_clock(vm_clock))) ||
1140 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
1141 qemu_get_clock(rt_clock)) ||
1142 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1143 qemu_get_clock(host_clock))) {
1144 qemu_event_increment();
1145 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1147 #ifndef CONFIG_IOTHREAD
1149 /* stop the currently executing cpu because a timer occured */
1153 timer_alarm_pending = 1;
1154 qemu_notify_event();
1158 static int64_t qemu_next_deadline(void)
1160 /* To avoid problems with overflow limit this to 2^32. */
1161 int64_t delta = INT32_MAX;
1163 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1164 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
1165 qemu_get_clock(vm_clock);
1167 if (active_timers[QEMU_CLOCK_HOST]) {
1168 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1169 qemu_get_clock(host_clock);
1180 #if defined(__linux__)
1181 static uint64_t qemu_next_deadline_dyntick(void)
1189 delta = (qemu_next_deadline() + 999) / 1000;
1191 if (active_timers[QEMU_CLOCK_REALTIME]) {
1192 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
1193 qemu_get_clock(rt_clock))*1000;
1194 if (rtdelta < delta)
1198 if (delta < MIN_TIMER_REARM_US)
1199 delta = MIN_TIMER_REARM_US;
1207 /* Sets a specific flag */
1208 static int fcntl_setfl(int fd, int flag)
1212 flags = fcntl(fd, F_GETFL);
1216 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1222 #if defined(__linux__)
1224 #define RTC_FREQ 1024
1226 static void enable_sigio_timer(int fd)
1228 struct sigaction act;
1231 sigfillset(&act.sa_mask);
1233 act.sa_handler = host_alarm_handler;
1235 sigaction(SIGIO, &act, NULL);
1236 fcntl_setfl(fd, O_ASYNC);
1237 fcntl(fd, F_SETOWN, getpid());
1240 static int hpet_start_timer(struct qemu_alarm_timer *t)
1242 struct hpet_info info;
1245 fd = open("/dev/hpet", O_RDONLY);
1250 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1252 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1253 "error, but for better emulation accuracy type:\n"
1254 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1258 /* Check capabilities */
1259 r = ioctl(fd, HPET_INFO, &info);
1263 /* Enable periodic mode */
1264 r = ioctl(fd, HPET_EPI, 0);
1265 if (info.hi_flags && (r < 0))
1268 /* Enable interrupt */
1269 r = ioctl(fd, HPET_IE_ON, 0);
1273 enable_sigio_timer(fd);
1274 t->priv = (void *)(long)fd;
1282 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1284 int fd = (long)t->priv;
1289 static int rtc_start_timer(struct qemu_alarm_timer *t)
1292 unsigned long current_rtc_freq = 0;
1294 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1297 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
1298 if (current_rtc_freq != RTC_FREQ &&
1299 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1300 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1301 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1302 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1305 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1311 enable_sigio_timer(rtc_fd);
1313 t->priv = (void *)(long)rtc_fd;
1318 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1320 int rtc_fd = (long)t->priv;
1325 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1329 struct sigaction act;
1331 sigfillset(&act.sa_mask);
1333 act.sa_handler = host_alarm_handler;
1335 sigaction(SIGALRM, &act, NULL);
1338 * Initialize ev struct to 0 to avoid valgrind complaining
1339 * about uninitialized data in timer_create call
1341 memset(&ev, 0, sizeof(ev));
1342 ev.sigev_value.sival_int = 0;
1343 ev.sigev_notify = SIGEV_SIGNAL;
1344 ev.sigev_signo = SIGALRM;
1346 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1347 perror("timer_create");
1349 /* disable dynticks */
1350 fprintf(stderr, "Dynamic Ticks disabled\n");
1355 t->priv = (void *)(long)host_timer;
1360 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1362 timer_t host_timer = (timer_t)(long)t->priv;
1364 timer_delete(host_timer);
1367 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1369 timer_t host_timer = (timer_t)(long)t->priv;
1370 struct itimerspec timeout;
1371 int64_t nearest_delta_us = INT64_MAX;
1374 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1375 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1376 !active_timers[QEMU_CLOCK_HOST])
1379 nearest_delta_us = qemu_next_deadline_dyntick();
1381 /* check whether a timer is already running */
1382 if (timer_gettime(host_timer, &timeout)) {
1384 fprintf(stderr, "Internal timer error: aborting\n");
1387 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1388 if (current_us && current_us <= nearest_delta_us)
1391 timeout.it_interval.tv_sec = 0;
1392 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1393 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1394 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1395 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1397 fprintf(stderr, "Internal timer error: aborting\n");
1402 #endif /* defined(__linux__) */
1404 static int unix_start_timer(struct qemu_alarm_timer *t)
1406 struct sigaction act;
1407 struct itimerval itv;
1411 sigfillset(&act.sa_mask);
1413 act.sa_handler = host_alarm_handler;
1415 sigaction(SIGALRM, &act, NULL);
1417 itv.it_interval.tv_sec = 0;
1418 /* for i386 kernel 2.6 to get 1 ms */
1419 itv.it_interval.tv_usec = 999;
1420 itv.it_value.tv_sec = 0;
1421 itv.it_value.tv_usec = 10 * 1000;
1423 err = setitimer(ITIMER_REAL, &itv, NULL);
1430 static void unix_stop_timer(struct qemu_alarm_timer *t)
1432 struct itimerval itv;
1434 memset(&itv, 0, sizeof(itv));
1435 setitimer(ITIMER_REAL, &itv, NULL);
1438 #endif /* !defined(_WIN32) */
1443 static int win32_start_timer(struct qemu_alarm_timer *t)
1446 struct qemu_alarm_win32 *data = t->priv;
1449 memset(&tc, 0, sizeof(tc));
1450 timeGetDevCaps(&tc, sizeof(tc));
1452 if (data->period < tc.wPeriodMin)
1453 data->period = tc.wPeriodMin;
1455 timeBeginPeriod(data->period);
1457 flags = TIME_CALLBACK_FUNCTION;
1458 if (alarm_has_dynticks(t))
1459 flags |= TIME_ONESHOT;
1461 flags |= TIME_PERIODIC;
1463 data->timerId = timeSetEvent(1, // interval (ms)
1464 data->period, // resolution
1465 host_alarm_handler, // function
1466 (DWORD)t, // parameter
1469 if (!data->timerId) {
1470 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
1472 timeEndPeriod(data->period);
1479 static void win32_stop_timer(struct qemu_alarm_timer *t)
1481 struct qemu_alarm_win32 *data = t->priv;
1483 timeKillEvent(data->timerId);
1484 timeEndPeriod(data->period);
1487 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1489 struct qemu_alarm_win32 *data = t->priv;
1491 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1492 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1493 !active_timers[QEMU_CLOCK_HOST])
1496 timeKillEvent(data->timerId);
1498 data->timerId = timeSetEvent(1,
1502 TIME_ONESHOT | TIME_PERIODIC);
1504 if (!data->timerId) {
1505 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
1508 timeEndPeriod(data->period);
1515 static int init_timer_alarm(void)
1517 struct qemu_alarm_timer *t = NULL;
1520 for (i = 0; alarm_timers[i].name; i++) {
1521 t = &alarm_timers[i];
1541 static void quit_timers(void)
1543 alarm_timer->stop(alarm_timer);
1547 /***********************************************************/
1548 /* host time/date access */
1549 void qemu_get_timedate(struct tm *tm, int offset)
1556 if (rtc_date_offset == -1) {
1560 ret = localtime(&ti);
1562 ti -= rtc_date_offset;
1566 memcpy(tm, ret, sizeof(struct tm));
1569 int qemu_timedate_diff(struct tm *tm)
1573 if (rtc_date_offset == -1)
1575 seconds = mktimegm(tm);
1577 seconds = mktime(tm);
1579 seconds = mktimegm(tm) + rtc_date_offset;
1581 return seconds - time(NULL);
1584 static void configure_rtc_date_offset(const char *startdate, int legacy)
1586 time_t rtc_start_date;
1589 if (!strcmp(startdate, "now") && legacy) {
1590 rtc_date_offset = -1;
1592 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1600 } else if (sscanf(startdate, "%d-%d-%d",
1603 &tm.tm_mday) == 3) {
1612 rtc_start_date = mktimegm(&tm);
1613 if (rtc_start_date == -1) {
1615 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1616 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1619 rtc_date_offset = time(NULL) - rtc_start_date;
1623 static void configure_rtc(QemuOpts *opts)
1627 value = qemu_opt_get(opts, "base");
1629 if (!strcmp(value, "utc")) {
1631 } else if (!strcmp(value, "localtime")) {
1634 configure_rtc_date_offset(value, 0);
1637 value = qemu_opt_get(opts, "clock");
1639 if (!strcmp(value, "host")) {
1640 rtc_clock = host_clock;
1641 } else if (!strcmp(value, "vm")) {
1642 rtc_clock = vm_clock;
1644 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1648 #ifdef CONFIG_TARGET_I386
1649 value = qemu_opt_get(opts, "driftfix");
1651 if (!strcmp(buf, "slew")) {
1653 } else if (!strcmp(buf, "none")) {
1656 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1664 static void socket_cleanup(void)
1669 static int socket_init(void)
1674 ret = WSAStartup(MAKEWORD(2,2), &Data);
1676 err = WSAGetLastError();
1677 fprintf(stderr, "WSAStartup: %d\n", err);
1680 atexit(socket_cleanup);
1685 /***********************************************************/
1686 /* Bluetooth support */
1689 static struct HCIInfo *hci_table[MAX_NICS];
1691 static struct bt_vlan_s {
1692 struct bt_scatternet_s net;
1694 struct bt_vlan_s *next;
1697 /* find or alloc a new bluetooth "VLAN" */
1698 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1700 struct bt_vlan_s **pvlan, *vlan;
1701 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1705 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1707 pvlan = &first_bt_vlan;
1708 while (*pvlan != NULL)
1709 pvlan = &(*pvlan)->next;
1714 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1718 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1723 static struct HCIInfo null_hci = {
1724 .cmd_send = null_hci_send,
1725 .sco_send = null_hci_send,
1726 .acl_send = null_hci_send,
1727 .bdaddr_set = null_hci_addr_set,
1730 struct HCIInfo *qemu_next_hci(void)
1732 if (cur_hci == nb_hcis)
1735 return hci_table[cur_hci++];
1738 static struct HCIInfo *hci_init(const char *str)
1741 struct bt_scatternet_s *vlan = 0;
1743 if (!strcmp(str, "null"))
1746 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1748 return bt_host_hci(str[4] ? str + 5 : "hci0");
1749 else if (!strncmp(str, "hci", 3)) {
1752 if (!strncmp(str + 3, ",vlan=", 6)) {
1753 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1758 vlan = qemu_find_bt_vlan(0);
1760 return bt_new_hci(vlan);
1763 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1768 static int bt_hci_parse(const char *str)
1770 struct HCIInfo *hci;
1773 if (nb_hcis >= MAX_NICS) {
1774 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1778 hci = hci_init(str);
1787 bdaddr.b[5] = 0x56 + nb_hcis;
1788 hci->bdaddr_set(hci, bdaddr.b);
1790 hci_table[nb_hcis++] = hci;
1795 static void bt_vhci_add(int vlan_id)
1797 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1800 fprintf(stderr, "qemu: warning: adding a VHCI to "
1801 "an empty scatternet %i\n", vlan_id);
1803 bt_vhci_init(bt_new_hci(vlan));
1806 static struct bt_device_s *bt_device_add(const char *opt)
1808 struct bt_scatternet_s *vlan;
1810 char *endp = strstr(opt, ",vlan=");
1811 int len = (endp ? endp - opt : strlen(opt)) + 1;
1814 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1817 vlan_id = strtol(endp + 6, &endp, 0);
1819 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1824 vlan = qemu_find_bt_vlan(vlan_id);
1827 fprintf(stderr, "qemu: warning: adding a slave device to "
1828 "an empty scatternet %i\n", vlan_id);
1830 if (!strcmp(devname, "keyboard"))
1831 return bt_keyboard_init(vlan);
1833 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1837 static int bt_parse(const char *opt)
1839 const char *endp, *p;
1842 if (strstart(opt, "hci", &endp)) {
1843 if (!*endp || *endp == ',') {
1845 if (!strstart(endp, ",vlan=", 0))
1848 return bt_hci_parse(opt);
1850 } else if (strstart(opt, "vhci", &endp)) {
1851 if (!*endp || *endp == ',') {
1853 if (strstart(endp, ",vlan=", &p)) {
1854 vlan = strtol(p, (char **) &endp, 0);
1856 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1860 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1869 } else if (strstart(opt, "device:", &endp))
1870 return !bt_device_add(endp);
1872 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1876 /***********************************************************/
1877 /* QEMU Block devices */
1879 #define HD_ALIAS "index=%d,media=disk"
1880 #define CDROM_ALIAS "index=2,media=cdrom"
1881 #define FD_ALIAS "index=%d,if=floppy"
1882 #define PFLASH_ALIAS "if=pflash"
1883 #define MTD_ALIAS "if=mtd"
1884 #define SD_ALIAS "index=0,if=sd"
1886 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1893 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1896 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1898 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1899 __FUNCTION__, optstr);
1903 qemu_opt_set(opts, "file", file);
1907 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1911 /* seek interface, bus and unit */
1913 QTAILQ_FOREACH(dinfo, &drives, next) {
1914 if (dinfo->type == type &&
1915 dinfo->bus == bus &&
1916 dinfo->unit == unit)
1923 DriveInfo *drive_get_by_id(const char *id)
1927 QTAILQ_FOREACH(dinfo, &drives, next) {
1928 if (strcmp(id, dinfo->id))
1935 int drive_get_max_bus(BlockInterfaceType type)
1941 QTAILQ_FOREACH(dinfo, &drives, next) {
1942 if(dinfo->type == type &&
1943 dinfo->bus > max_bus)
1944 max_bus = dinfo->bus;
1949 const char *drive_get_serial(BlockDriverState *bdrv)
1953 QTAILQ_FOREACH(dinfo, &drives, next) {
1954 if (dinfo->bdrv == bdrv)
1955 return dinfo->serial;
1961 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1965 QTAILQ_FOREACH(dinfo, &drives, next) {
1966 if (dinfo->bdrv == bdrv)
1967 return dinfo->onerror;
1970 return BLOCK_ERR_STOP_ENOSPC;
1973 static void bdrv_format_print(void *opaque, const char *name)
1975 fprintf(stderr, " %s", name);
1978 void drive_uninit(DriveInfo *dinfo)
1980 qemu_opts_del(dinfo->opts);
1981 bdrv_delete(dinfo->bdrv);
1982 QTAILQ_REMOVE(&drives, dinfo, next);
1986 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1990 const char *file = NULL;
1993 const char *mediastr = "";
1994 BlockInterfaceType type;
1995 enum { MEDIA_DISK, MEDIA_CDROM } media;
1996 int bus_id, unit_id;
1997 int cyls, heads, secs, translation;
1998 BlockDriver *drv = NULL;
1999 QEMUMachine *machine = opaque;
2004 int bdrv_flags, onerror;
2005 const char *devaddr;
2011 translation = BIOS_ATA_TRANSLATION_AUTO;
2014 if (machine && machine->use_scsi) {
2016 max_devs = MAX_SCSI_DEVS;
2017 pstrcpy(devname, sizeof(devname), "scsi");
2020 max_devs = MAX_IDE_DEVS;
2021 pstrcpy(devname, sizeof(devname), "ide");
2025 /* extract parameters */
2026 bus_id = qemu_opt_get_number(opts, "bus", 0);
2027 unit_id = qemu_opt_get_number(opts, "unit", -1);
2028 index = qemu_opt_get_number(opts, "index", -1);
2030 cyls = qemu_opt_get_number(opts, "cyls", 0);
2031 heads = qemu_opt_get_number(opts, "heads", 0);
2032 secs = qemu_opt_get_number(opts, "secs", 0);
2034 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
2036 file = qemu_opt_get(opts, "file");
2037 serial = qemu_opt_get(opts, "serial");
2039 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
2040 pstrcpy(devname, sizeof(devname), buf);
2041 if (!strcmp(buf, "ide")) {
2043 max_devs = MAX_IDE_DEVS;
2044 } else if (!strcmp(buf, "scsi")) {
2046 max_devs = MAX_SCSI_DEVS;
2047 } else if (!strcmp(buf, "floppy")) {
2050 } else if (!strcmp(buf, "pflash")) {
2053 } else if (!strcmp(buf, "mtd")) {
2056 } else if (!strcmp(buf, "sd")) {
2059 } else if (!strcmp(buf, "virtio")) {
2062 } else if (!strcmp(buf, "xen")) {
2065 } else if (!strcmp(buf, "none")) {
2069 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
2074 if (cyls || heads || secs) {
2075 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
2076 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
2079 if (heads < 1 || (type == IF_IDE && heads > 16)) {
2080 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
2083 if (secs < 1 || (type == IF_IDE && secs > 63)) {
2084 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
2089 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
2092 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2096 if (!strcmp(buf, "none"))
2097 translation = BIOS_ATA_TRANSLATION_NONE;
2098 else if (!strcmp(buf, "lba"))
2099 translation = BIOS_ATA_TRANSLATION_LBA;
2100 else if (!strcmp(buf, "auto"))
2101 translation = BIOS_ATA_TRANSLATION_AUTO;
2103 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2108 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2109 if (!strcmp(buf, "disk")) {
2111 } else if (!strcmp(buf, "cdrom")) {
2112 if (cyls || secs || heads) {
2114 "qemu: '%s' invalid physical CHS format\n", buf);
2117 media = MEDIA_CDROM;
2119 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2124 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2125 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2127 else if (!strcmp(buf, "writethrough"))
2129 else if (!strcmp(buf, "writeback"))
2132 fprintf(stderr, "qemu: invalid cache option\n");
2137 #ifdef CONFIG_LINUX_AIO
2138 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2139 if (!strcmp(buf, "threads"))
2141 else if (!strcmp(buf, "native"))
2144 fprintf(stderr, "qemu: invalid aio option\n");
2150 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2151 if (strcmp(buf, "?") == 0) {
2152 fprintf(stderr, "qemu: Supported formats:");
2153 bdrv_iterate_format(bdrv_format_print, NULL);
2154 fprintf(stderr, "\n");
2157 drv = bdrv_find_format(buf);
2159 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2164 onerror = BLOCK_ERR_STOP_ENOSPC;
2165 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2166 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2167 fprintf(stderr, "werror is no supported by this format\n");
2170 if (!strcmp(buf, "ignore"))
2171 onerror = BLOCK_ERR_IGNORE;
2172 else if (!strcmp(buf, "enospc"))
2173 onerror = BLOCK_ERR_STOP_ENOSPC;
2174 else if (!strcmp(buf, "stop"))
2175 onerror = BLOCK_ERR_STOP_ANY;
2176 else if (!strcmp(buf, "report"))
2177 onerror = BLOCK_ERR_REPORT;
2179 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
2184 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2185 if (type != IF_VIRTIO) {
2186 fprintf(stderr, "addr is not supported\n");
2191 /* compute bus and unit according index */
2194 if (bus_id != 0 || unit_id != -1) {
2196 "qemu: index cannot be used with bus and unit\n");
2204 unit_id = index % max_devs;
2205 bus_id = index / max_devs;
2209 /* if user doesn't specify a unit_id,
2210 * try to find the first free
2213 if (unit_id == -1) {
2215 while (drive_get(type, bus_id, unit_id) != NULL) {
2217 if (max_devs && unit_id >= max_devs) {
2218 unit_id -= max_devs;
2226 if (max_devs && unit_id >= max_devs) {
2227 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2228 unit_id, max_devs - 1);
2233 * ignore multiple definitions
2236 if (drive_get(type, bus_id, unit_id) != NULL) {
2243 dinfo = qemu_mallocz(sizeof(*dinfo));
2244 if ((buf = qemu_opts_id(opts)) != NULL) {
2245 dinfo->id = qemu_strdup(buf);
2247 /* no id supplied -> create one */
2248 dinfo->id = qemu_mallocz(32);
2249 if (type == IF_IDE || type == IF_SCSI)
2250 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2252 snprintf(dinfo->id, 32, "%s%i%s%i",
2253 devname, bus_id, mediastr, unit_id);
2255 snprintf(dinfo->id, 32, "%s%s%i",
2256 devname, mediastr, unit_id);
2258 dinfo->bdrv = bdrv_new(dinfo->id);
2259 dinfo->devaddr = devaddr;
2261 dinfo->bus = bus_id;
2262 dinfo->unit = unit_id;
2263 dinfo->onerror = onerror;
2266 strncpy(dinfo->serial, serial, sizeof(serial));
2267 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
2277 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2278 bdrv_set_translation_hint(dinfo->bdrv, translation);
2282 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2287 /* FIXME: This isn't really a floppy, but it's a reasonable
2290 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2296 /* add virtio block device */
2297 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2298 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2299 qemu_opt_set(opts, "drive", dinfo->id);
2301 qemu_opt_set(opts, "addr", devaddr);
2312 bdrv_flags |= BDRV_O_SNAPSHOT;
2313 cache = 2; /* always use write-back with snapshot */
2315 if (cache == 0) /* no caching */
2316 bdrv_flags |= BDRV_O_NOCACHE;
2317 else if (cache == 2) /* write-back */
2318 bdrv_flags |= BDRV_O_CACHE_WB;
2321 bdrv_flags |= BDRV_O_NATIVE_AIO;
2323 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2326 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2327 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2328 file, strerror(errno));
2332 if (bdrv_key_required(dinfo->bdrv))
2338 static int drive_init_func(QemuOpts *opts, void *opaque)
2340 QEMUMachine *machine = opaque;
2341 int fatal_error = 0;
2343 if (drive_init(opts, machine, &fatal_error) == NULL) {
2350 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2352 if (NULL == qemu_opt_get(opts, "snapshot")) {
2353 qemu_opt_set(opts, "snapshot", "on");
2358 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2360 boot_set_handler = func;
2361 boot_set_opaque = opaque;
2364 int qemu_boot_set(const char *boot_devices)
2366 if (!boot_set_handler) {
2369 return boot_set_handler(boot_set_opaque, boot_devices);
2372 static int parse_bootdevices(char *devices)
2374 /* We just do some generic consistency checks */
2378 for (p = devices; *p != '\0'; p++) {
2379 /* Allowed boot devices are:
2380 * a-b: floppy disk drives
2381 * c-f: IDE disk drives
2382 * g-m: machine implementation dependant drives
2383 * n-p: network devices
2384 * It's up to each machine implementation to check if the given boot
2385 * devices match the actual hardware implementation and firmware
2388 if (*p < 'a' || *p > 'p') {
2389 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2392 if (bitmap & (1 << (*p - 'a'))) {
2393 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2396 bitmap |= 1 << (*p - 'a');
2401 static void restore_boot_devices(void *opaque)
2403 char *standard_boot_devices = opaque;
2405 qemu_boot_set(standard_boot_devices);
2407 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2408 qemu_free(standard_boot_devices);
2411 static void numa_add(const char *optarg)
2415 unsigned long long value, endvalue;
2418 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2419 if (!strcmp(option, "node")) {
2420 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2421 nodenr = nb_numa_nodes;
2423 nodenr = strtoull(option, NULL, 10);
2426 if (get_param_value(option, 128, "mem", optarg) == 0) {
2427 node_mem[nodenr] = 0;
2429 value = strtoull(option, &endptr, 0);
2431 case 0: case 'M': case 'm':
2438 node_mem[nodenr] = value;
2440 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2441 node_cpumask[nodenr] = 0;
2443 value = strtoull(option, &endptr, 10);
2446 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2448 if (*endptr == '-') {
2449 endvalue = strtoull(endptr+1, &endptr, 10);
2450 if (endvalue >= 63) {
2453 "only 63 CPUs in NUMA mode supported.\n");
2455 value = (1 << (endvalue + 1)) - (1 << value);
2460 node_cpumask[nodenr] = value;
2467 static void smp_parse(const char *optarg)
2469 int smp, sockets = 0, threads = 0, cores = 0;
2473 smp = strtoul(optarg, &endptr, 10);
2474 if (endptr != optarg) {
2475 if (*endptr == ',') {
2479 if (get_param_value(option, 128, "sockets", endptr) != 0)
2480 sockets = strtoull(option, NULL, 10);
2481 if (get_param_value(option, 128, "cores", endptr) != 0)
2482 cores = strtoull(option, NULL, 10);
2483 if (get_param_value(option, 128, "threads", endptr) != 0)
2484 threads = strtoull(option, NULL, 10);
2485 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2486 max_cpus = strtoull(option, NULL, 10);
2488 /* compute missing values, prefer sockets over cores over threads */
2489 if (smp == 0 || sockets == 0) {
2490 sockets = sockets > 0 ? sockets : 1;
2491 cores = cores > 0 ? cores : 1;
2492 threads = threads > 0 ? threads : 1;
2494 smp = cores * threads * sockets;
2496 sockets = smp / (cores * threads);
2500 threads = threads > 0 ? threads : 1;
2501 cores = smp / (sockets * threads);
2504 sockets = smp / (cores * threads);
2506 threads = smp / (cores * sockets);
2511 smp_cores = cores > 0 ? cores : 1;
2512 smp_threads = threads > 0 ? threads : 1;
2514 max_cpus = smp_cpus;
2517 /***********************************************************/
2520 static int usb_device_add(const char *devname, int is_hotplug)
2523 USBDevice *dev = NULL;
2528 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2529 dev = usbdevice_create(devname);
2533 /* the other ones */
2534 if (strstart(devname, "host:", &p)) {
2535 dev = usb_host_device_open(p);
2536 } else if (strstart(devname, "net:", &p)) {
2540 opts = qemu_opts_parse(&qemu_net_opts, p, NULL);
2545 qemu_opt_set(opts, "type", "nic");
2546 qemu_opt_set(opts, "model", "usb");
2548 idx = net_client_init(NULL, opts, 0);
2553 dev = usb_net_init(&nd_table[idx]);
2554 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2555 dev = usb_bt_init(devname[2] ? hci_init(p) :
2556 bt_new_hci(qemu_find_bt_vlan(0)));
2567 static int usb_device_del(const char *devname)
2572 if (strstart(devname, "host:", &p))
2573 return usb_host_device_close(p);
2578 p = strchr(devname, '.');
2581 bus_num = strtoul(devname, NULL, 0);
2582 addr = strtoul(p + 1, NULL, 0);
2584 return usb_device_delete_addr(bus_num, addr);
2587 static int usb_parse(const char *cmdline)
2589 return usb_device_add(cmdline, 0);
2592 void do_usb_add(Monitor *mon, const QDict *qdict)
2594 usb_device_add(qdict_get_str(qdict, "devname"), 1);
2597 void do_usb_del(Monitor *mon, const QDict *qdict)
2599 usb_device_del(qdict_get_str(qdict, "devname"));
2602 /***********************************************************/
2603 /* PCMCIA/Cardbus */
2605 static struct pcmcia_socket_entry_s {
2606 PCMCIASocket *socket;
2607 struct pcmcia_socket_entry_s *next;
2608 } *pcmcia_sockets = 0;
2610 void pcmcia_socket_register(PCMCIASocket *socket)
2612 struct pcmcia_socket_entry_s *entry;
2614 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2615 entry->socket = socket;
2616 entry->next = pcmcia_sockets;
2617 pcmcia_sockets = entry;
2620 void pcmcia_socket_unregister(PCMCIASocket *socket)
2622 struct pcmcia_socket_entry_s *entry, **ptr;
2624 ptr = &pcmcia_sockets;
2625 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2626 if (entry->socket == socket) {
2632 void pcmcia_info(Monitor *mon)
2634 struct pcmcia_socket_entry_s *iter;
2636 if (!pcmcia_sockets)
2637 monitor_printf(mon, "No PCMCIA sockets\n");
2639 for (iter = pcmcia_sockets; iter; iter = iter->next)
2640 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2641 iter->socket->attached ? iter->socket->card_string :
2645 /***********************************************************/
2646 /* register display */
2648 struct DisplayAllocator default_allocator = {
2649 defaultallocator_create_displaysurface,
2650 defaultallocator_resize_displaysurface,
2651 defaultallocator_free_displaysurface
2654 void register_displaystate(DisplayState *ds)
2664 DisplayState *get_displaystate(void)
2666 return display_state;
2669 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2671 if(ds->allocator == &default_allocator) ds->allocator = da;
2672 return ds->allocator;
2677 static void dumb_display_init(void)
2679 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2680 ds->allocator = &default_allocator;
2681 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2682 register_displaystate(ds);
2685 /***********************************************************/
2688 typedef struct IOHandlerRecord {
2690 IOCanRWHandler *fd_read_poll;
2692 IOHandler *fd_write;
2695 /* temporary data */
2697 struct IOHandlerRecord *next;
2700 static IOHandlerRecord *first_io_handler;
2702 /* XXX: fd_read_poll should be suppressed, but an API change is
2703 necessary in the character devices to suppress fd_can_read(). */
2704 int qemu_set_fd_handler2(int fd,
2705 IOCanRWHandler *fd_read_poll,
2707 IOHandler *fd_write,
2710 IOHandlerRecord **pioh, *ioh;
2712 if (!fd_read && !fd_write) {
2713 pioh = &first_io_handler;
2718 if (ioh->fd == fd) {
2725 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2729 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2730 ioh->next = first_io_handler;
2731 first_io_handler = ioh;
2734 ioh->fd_read_poll = fd_read_poll;
2735 ioh->fd_read = fd_read;
2736 ioh->fd_write = fd_write;
2737 ioh->opaque = opaque;
2743 int qemu_set_fd_handler(int fd,
2745 IOHandler *fd_write,
2748 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2752 /***********************************************************/
2753 /* Polling handling */
2755 typedef struct PollingEntry {
2758 struct PollingEntry *next;
2761 static PollingEntry *first_polling_entry;
2763 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2765 PollingEntry **ppe, *pe;
2766 pe = qemu_mallocz(sizeof(PollingEntry));
2768 pe->opaque = opaque;
2769 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2774 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2776 PollingEntry **ppe, *pe;
2777 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2779 if (pe->func == func && pe->opaque == opaque) {
2787 /***********************************************************/
2788 /* Wait objects support */
2789 typedef struct WaitObjects {
2791 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2792 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2793 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2796 static WaitObjects wait_objects = {0};
2798 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2800 WaitObjects *w = &wait_objects;
2802 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2804 w->events[w->num] = handle;
2805 w->func[w->num] = func;
2806 w->opaque[w->num] = opaque;
2811 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2814 WaitObjects *w = &wait_objects;
2817 for (i = 0; i < w->num; i++) {
2818 if (w->events[i] == handle)
2821 w->events[i] = w->events[i + 1];
2822 w->func[i] = w->func[i + 1];
2823 w->opaque[i] = w->opaque[i + 1];
2831 /***********************************************************/
2832 /* ram save/restore */
2834 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2835 #define RAM_SAVE_FLAG_COMPRESS 0x02
2836 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2837 #define RAM_SAVE_FLAG_PAGE 0x08
2838 #define RAM_SAVE_FLAG_EOS 0x10
2840 static int is_dup_page(uint8_t *page, uint8_t ch)
2842 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2843 uint32_t *array = (uint32_t *)page;
2846 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2847 if (array[i] != val)
2854 static int ram_save_block(QEMUFile *f)
2856 static ram_addr_t current_addr = 0;
2857 ram_addr_t saved_addr = current_addr;
2858 ram_addr_t addr = 0;
2861 while (addr < last_ram_offset) {
2862 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2865 cpu_physical_memory_reset_dirty(current_addr,
2866 current_addr + TARGET_PAGE_SIZE,
2867 MIGRATION_DIRTY_FLAG);
2869 p = qemu_get_ram_ptr(current_addr);
2871 if (is_dup_page(p, *p)) {
2872 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2873 qemu_put_byte(f, *p);
2875 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2876 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2882 addr += TARGET_PAGE_SIZE;
2883 current_addr = (saved_addr + addr) % last_ram_offset;
2889 static uint64_t bytes_transferred = 0;
2891 static ram_addr_t ram_save_remaining(void)
2894 ram_addr_t count = 0;
2896 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2897 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2904 uint64_t ram_bytes_remaining(void)
2906 return ram_save_remaining() * TARGET_PAGE_SIZE;
2909 uint64_t ram_bytes_transferred(void)
2911 return bytes_transferred;
2914 uint64_t ram_bytes_total(void)
2916 return last_ram_offset;
2919 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
2922 uint64_t bytes_transferred_last;
2924 uint64_t expected_time = 0;
2926 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2927 qemu_file_set_error(f);
2932 /* Make sure all dirty bits are set */
2933 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2934 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2935 cpu_physical_memory_set_dirty(addr);
2938 /* Enable dirty memory tracking */
2939 cpu_physical_memory_set_dirty_tracking(1);
2941 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
2944 bytes_transferred_last = bytes_transferred;
2945 bwidth = get_clock();
2947 while (!qemu_file_rate_limit(f)) {
2950 ret = ram_save_block(f);
2951 bytes_transferred += ret * TARGET_PAGE_SIZE;
2952 if (ret == 0) /* no more blocks */
2956 bwidth = get_clock() - bwidth;
2957 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2959 /* if we haven't transferred anything this round, force expected_time to a
2960 * a very high value, but without crashing */
2964 /* try transferring iterative blocks of memory */
2968 /* flush all remaining blocks regardless of rate limiting */
2969 while (ram_save_block(f) != 0) {
2970 bytes_transferred += TARGET_PAGE_SIZE;
2972 cpu_physical_memory_set_dirty_tracking(0);
2975 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2977 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2979 return (stage == 2) && (expected_time <= migrate_max_downtime());
2982 static int ram_load(QEMUFile *f, void *opaque, int version_id)
2987 if (version_id != 3)
2991 addr = qemu_get_be64(f);
2993 flags = addr & ~TARGET_PAGE_MASK;
2994 addr &= TARGET_PAGE_MASK;
2996 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
2997 if (addr != last_ram_offset)
3001 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3002 uint8_t ch = qemu_get_byte(f);
3003 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3006 (!kvm_enabled() || kvm_has_sync_mmu())) {
3007 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
3010 } else if (flags & RAM_SAVE_FLAG_PAGE)
3011 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
3012 } while (!(flags & RAM_SAVE_FLAG_EOS));
3017 void qemu_service_io(void)
3019 qemu_notify_event();
3022 /***********************************************************/
3023 /* machine registration */
3025 static QEMUMachine *first_machine = NULL;
3026 QEMUMachine *current_machine = NULL;
3028 int qemu_register_machine(QEMUMachine *m)
3031 pm = &first_machine;
3039 static QEMUMachine *find_machine(const char *name)
3043 for(m = first_machine; m != NULL; m = m->next) {
3044 if (!strcmp(m->name, name))
3046 if (m->alias && !strcmp(m->alias, name))
3052 static QEMUMachine *find_default_machine(void)
3056 for(m = first_machine; m != NULL; m = m->next) {
3057 if (m->is_default) {
3064 /***********************************************************/
3065 /* main execution loop */
3067 static void gui_update(void *opaque)
3069 uint64_t interval = GUI_REFRESH_INTERVAL;
3070 DisplayState *ds = opaque;
3071 DisplayChangeListener *dcl = ds->listeners;
3075 while (dcl != NULL) {
3076 if (dcl->gui_timer_interval &&
3077 dcl->gui_timer_interval < interval)
3078 interval = dcl->gui_timer_interval;
3081 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3084 static void nographic_update(void *opaque)
3086 uint64_t interval = GUI_REFRESH_INTERVAL;
3088 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3091 struct vm_change_state_entry {
3092 VMChangeStateHandler *cb;
3094 QLIST_ENTRY (vm_change_state_entry) entries;
3097 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3099 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3102 VMChangeStateEntry *e;
3104 e = qemu_mallocz(sizeof (*e));
3108 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3112 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3114 QLIST_REMOVE (e, entries);
3118 static void vm_state_notify(int running, int reason)
3120 VMChangeStateEntry *e;
3122 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3123 e->cb(e->opaque, running, reason);
3127 static void resume_all_vcpus(void);
3128 static void pause_all_vcpus(void);
3135 vm_state_notify(1, 0);
3136 qemu_rearm_alarm_timer(alarm_timer);
3141 /* reset/shutdown handler */
3143 typedef struct QEMUResetEntry {
3144 QTAILQ_ENTRY(QEMUResetEntry) entry;
3145 QEMUResetHandler *func;
3149 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3150 QTAILQ_HEAD_INITIALIZER(reset_handlers);
3151 static int reset_requested;
3152 static int shutdown_requested;
3153 static int powerdown_requested;
3154 static int debug_requested;
3155 static int vmstop_requested;
3157 int qemu_shutdown_requested(void)
3159 int r = shutdown_requested;
3160 shutdown_requested = 0;
3164 int qemu_reset_requested(void)
3166 int r = reset_requested;
3167 reset_requested = 0;
3171 int qemu_powerdown_requested(void)
3173 int r = powerdown_requested;
3174 powerdown_requested = 0;
3178 static int qemu_debug_requested(void)
3180 int r = debug_requested;
3181 debug_requested = 0;
3185 static int qemu_vmstop_requested(void)
3187 int r = vmstop_requested;
3188 vmstop_requested = 0;
3192 static void do_vm_stop(int reason)
3195 cpu_disable_ticks();
3198 vm_state_notify(0, reason);
3202 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3204 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3207 re->opaque = opaque;
3208 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3211 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3215 QTAILQ_FOREACH(re, &reset_handlers, entry) {
3216 if (re->func == func && re->opaque == opaque) {
3217 QTAILQ_REMOVE(&reset_handlers, re, entry);
3224 void qemu_system_reset(void)
3226 QEMUResetEntry *re, *nre;
3228 /* reset all devices */
3229 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3230 re->func(re->opaque);
3234 void qemu_system_reset_request(void)
3237 shutdown_requested = 1;
3239 reset_requested = 1;
3241 qemu_notify_event();
3244 void qemu_system_shutdown_request(void)
3246 shutdown_requested = 1;
3247 qemu_notify_event();
3250 void qemu_system_powerdown_request(void)
3252 powerdown_requested = 1;
3253 qemu_notify_event();
3256 #ifdef CONFIG_IOTHREAD
3257 static void qemu_system_vmstop_request(int reason)
3259 vmstop_requested = reason;
3260 qemu_notify_event();
3265 static int io_thread_fd = -1;
3267 static void qemu_event_increment(void)
3269 static const char byte = 0;
3271 if (io_thread_fd == -1)
3274 write(io_thread_fd, &byte, sizeof(byte));
3277 static void qemu_event_read(void *opaque)
3279 int fd = (unsigned long)opaque;
3282 /* Drain the notify pipe */
3285 len = read(fd, buffer, sizeof(buffer));
3286 } while ((len == -1 && errno == EINTR) || len > 0);
3289 static int qemu_event_init(void)
3298 err = fcntl_setfl(fds[0], O_NONBLOCK);
3302 err = fcntl_setfl(fds[1], O_NONBLOCK);
3306 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3307 (void *)(unsigned long)fds[0]);
3309 io_thread_fd = fds[1];
3318 HANDLE qemu_event_handle;
3320 static void dummy_event_handler(void *opaque)
3324 static int qemu_event_init(void)
3326 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3327 if (!qemu_event_handle) {
3328 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
3331 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3335 static void qemu_event_increment(void)
3337 if (!SetEvent(qemu_event_handle)) {
3338 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
3345 static int cpu_can_run(CPUState *env)
3354 #ifndef CONFIG_IOTHREAD
3355 static int qemu_init_main_loop(void)
3357 return qemu_event_init();
3360 void qemu_init_vcpu(void *_env)
3362 CPUState *env = _env;
3366 env->nr_cores = smp_cores;
3367 env->nr_threads = smp_threads;
3371 int qemu_cpu_self(void *env)
3376 static void resume_all_vcpus(void)
3380 static void pause_all_vcpus(void)
3384 void qemu_cpu_kick(void *env)
3389 void qemu_notify_event(void)
3391 CPUState *env = cpu_single_env;
3398 void qemu_mutex_lock_iothread(void) {}
3399 void qemu_mutex_unlock_iothread(void) {}
3401 void vm_stop(int reason)
3406 #else /* CONFIG_IOTHREAD */
3408 #include "qemu-thread.h"
3410 QemuMutex qemu_global_mutex;
3411 static QemuMutex qemu_fair_mutex;
3413 static QemuThread io_thread;
3415 static QemuThread *tcg_cpu_thread;
3416 static QemuCond *tcg_halt_cond;
3418 static int qemu_system_ready;
3420 static QemuCond qemu_cpu_cond;
3422 static QemuCond qemu_system_cond;
3423 static QemuCond qemu_pause_cond;
3425 static void block_io_signals(void);
3426 static void unblock_io_signals(void);
3427 static int tcg_has_work(void);
3429 static int qemu_init_main_loop(void)
3433 ret = qemu_event_init();
3437 qemu_cond_init(&qemu_pause_cond);
3438 qemu_mutex_init(&qemu_fair_mutex);
3439 qemu_mutex_init(&qemu_global_mutex);
3440 qemu_mutex_lock(&qemu_global_mutex);
3442 unblock_io_signals();
3443 qemu_thread_self(&io_thread);
3448 static void qemu_wait_io_event(CPUState *env)
3450 while (!tcg_has_work())
3451 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3453 qemu_mutex_unlock(&qemu_global_mutex);
3456 * Users of qemu_global_mutex can be starved, having no chance
3457 * to acquire it since this path will get to it first.
3458 * So use another lock to provide fairness.
3460 qemu_mutex_lock(&qemu_fair_mutex);
3461 qemu_mutex_unlock(&qemu_fair_mutex);
3463 qemu_mutex_lock(&qemu_global_mutex);
3467 qemu_cond_signal(&qemu_pause_cond);
3471 static int qemu_cpu_exec(CPUState *env);
3473 static void *kvm_cpu_thread_fn(void *arg)
3475 CPUState *env = arg;
3478 qemu_thread_self(env->thread);
3482 /* signal CPU creation */
3483 qemu_mutex_lock(&qemu_global_mutex);
3485 qemu_cond_signal(&qemu_cpu_cond);
3487 /* and wait for machine initialization */
3488 while (!qemu_system_ready)
3489 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3492 if (cpu_can_run(env))
3494 qemu_wait_io_event(env);
3500 static void tcg_cpu_exec(void);
3502 static void *tcg_cpu_thread_fn(void *arg)
3504 CPUState *env = arg;
3507 qemu_thread_self(env->thread);
3509 /* signal CPU creation */
3510 qemu_mutex_lock(&qemu_global_mutex);
3511 for (env = first_cpu; env != NULL; env = env->next_cpu)
3513 qemu_cond_signal(&qemu_cpu_cond);
3515 /* and wait for machine initialization */
3516 while (!qemu_system_ready)
3517 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3521 qemu_wait_io_event(cur_cpu);
3527 void qemu_cpu_kick(void *_env)
3529 CPUState *env = _env;
3530 qemu_cond_broadcast(env->halt_cond);
3532 qemu_thread_signal(env->thread, SIGUSR1);
3535 int qemu_cpu_self(void *_env)
3537 CPUState *env = _env;
3540 qemu_thread_self(&this);
3542 return qemu_thread_equal(&this, env->thread);
3545 static void cpu_signal(int sig)
3548 cpu_exit(cpu_single_env);
3551 static void block_io_signals(void)
3554 struct sigaction sigact;
3557 sigaddset(&set, SIGUSR2);
3558 sigaddset(&set, SIGIO);
3559 sigaddset(&set, SIGALRM);
3560 pthread_sigmask(SIG_BLOCK, &set, NULL);
3563 sigaddset(&set, SIGUSR1);
3564 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3566 memset(&sigact, 0, sizeof(sigact));
3567 sigact.sa_handler = cpu_signal;
3568 sigaction(SIGUSR1, &sigact, NULL);
3571 static void unblock_io_signals(void)
3576 sigaddset(&set, SIGUSR2);
3577 sigaddset(&set, SIGIO);
3578 sigaddset(&set, SIGALRM);
3579 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3582 sigaddset(&set, SIGUSR1);
3583 pthread_sigmask(SIG_BLOCK, &set, NULL);
3586 static void qemu_signal_lock(unsigned int msecs)
3588 qemu_mutex_lock(&qemu_fair_mutex);
3590 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3591 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3592 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3595 qemu_mutex_unlock(&qemu_fair_mutex);
3598 void qemu_mutex_lock_iothread(void)
3600 if (kvm_enabled()) {
3601 qemu_mutex_lock(&qemu_fair_mutex);
3602 qemu_mutex_lock(&qemu_global_mutex);
3603 qemu_mutex_unlock(&qemu_fair_mutex);
3605 qemu_signal_lock(100);
3608 void qemu_mutex_unlock_iothread(void)
3610 qemu_mutex_unlock(&qemu_global_mutex);
3613 static int all_vcpus_paused(void)
3615 CPUState *penv = first_cpu;
3620 penv = (CPUState *)penv->next_cpu;
3626 static void pause_all_vcpus(void)
3628 CPUState *penv = first_cpu;
3632 qemu_thread_signal(penv->thread, SIGUSR1);
3633 qemu_cpu_kick(penv);
3634 penv = (CPUState *)penv->next_cpu;
3637 while (!all_vcpus_paused()) {
3638 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3641 qemu_thread_signal(penv->thread, SIGUSR1);
3642 penv = (CPUState *)penv->next_cpu;
3647 static void resume_all_vcpus(void)
3649 CPUState *penv = first_cpu;
3654 qemu_thread_signal(penv->thread, SIGUSR1);
3655 qemu_cpu_kick(penv);
3656 penv = (CPUState *)penv->next_cpu;
3660 static void tcg_init_vcpu(void *_env)
3662 CPUState *env = _env;
3663 /* share a single thread for all cpus with TCG */
3664 if (!tcg_cpu_thread) {
3665 env->thread = qemu_mallocz(sizeof(QemuThread));
3666 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3667 qemu_cond_init(env->halt_cond);
3668 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3669 while (env->created == 0)
3670 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3671 tcg_cpu_thread = env->thread;
3672 tcg_halt_cond = env->halt_cond;
3674 env->thread = tcg_cpu_thread;
3675 env->halt_cond = tcg_halt_cond;
3679 static void kvm_start_vcpu(CPUState *env)
3681 env->thread = qemu_mallocz(sizeof(QemuThread));
3682 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3683 qemu_cond_init(env->halt_cond);
3684 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3685 while (env->created == 0)
3686 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3689 void qemu_init_vcpu(void *_env)
3691 CPUState *env = _env;
3694 kvm_start_vcpu(env);
3697 env->nr_cores = smp_cores;
3698 env->nr_threads = smp_threads;
3701 void qemu_notify_event(void)
3703 qemu_event_increment();
3706 void vm_stop(int reason)
3709 qemu_thread_self(&me);
3711 if (!qemu_thread_equal(&me, &io_thread)) {
3712 qemu_system_vmstop_request(reason);
3714 * FIXME: should not return to device code in case
3715 * vm_stop() has been requested.
3717 if (cpu_single_env) {
3718 cpu_exit(cpu_single_env);
3719 cpu_single_env->stop = 1;
3730 static void host_main_loop_wait(int *timeout)
3736 /* XXX: need to suppress polling by better using win32 events */
3738 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3739 ret |= pe->func(pe->opaque);
3743 WaitObjects *w = &wait_objects;
3745 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3746 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3747 if (w->func[ret - WAIT_OBJECT_0])
3748 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3750 /* Check for additional signaled events */
3751 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3753 /* Check if event is signaled */
3754 ret2 = WaitForSingleObject(w->events[i], 0);
3755 if(ret2 == WAIT_OBJECT_0) {
3757 w->func[i](w->opaque[i]);
3758 } else if (ret2 == WAIT_TIMEOUT) {
3760 err = GetLastError();
3761 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3764 } else if (ret == WAIT_TIMEOUT) {
3766 err = GetLastError();
3767 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3774 static void host_main_loop_wait(int *timeout)
3779 void main_loop_wait(int timeout)
3781 IOHandlerRecord *ioh;
3782 fd_set rfds, wfds, xfds;
3786 qemu_bh_update_timeout(&timeout);
3788 host_main_loop_wait(&timeout);
3790 /* poll any events */
3791 /* XXX: separate device handlers from system ones */
3796 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3800 (!ioh->fd_read_poll ||
3801 ioh->fd_read_poll(ioh->opaque) != 0)) {
3802 FD_SET(ioh->fd, &rfds);
3806 if (ioh->fd_write) {
3807 FD_SET(ioh->fd, &wfds);
3813 tv.tv_sec = timeout / 1000;
3814 tv.tv_usec = (timeout % 1000) * 1000;
3816 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3818 qemu_mutex_unlock_iothread();
3819 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3820 qemu_mutex_lock_iothread();
3822 IOHandlerRecord **pioh;
3824 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3825 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3826 ioh->fd_read(ioh->opaque);
3828 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3829 ioh->fd_write(ioh->opaque);
3833 /* remove deleted IO handlers */
3834 pioh = &first_io_handler;
3845 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
3847 /* rearm timer, if not periodic */
3848 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3849 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3850 qemu_rearm_alarm_timer(alarm_timer);
3853 /* vm time timers */
3855 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
3856 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3857 qemu_get_clock(vm_clock));
3860 /* real time timers */
3861 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
3862 qemu_get_clock(rt_clock));
3864 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3865 qemu_get_clock(host_clock));
3867 /* Check bottom-halves last in case any of the earlier events triggered
3873 static int qemu_cpu_exec(CPUState *env)
3876 #ifdef CONFIG_PROFILER
3880 #ifdef CONFIG_PROFILER
3881 ti = profile_getclock();
3886 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3887 env->icount_decr.u16.low = 0;
3888 env->icount_extra = 0;
3889 count = qemu_next_deadline();
3890 count = (count + (1 << icount_time_shift) - 1)
3891 >> icount_time_shift;
3892 qemu_icount += count;
3893 decr = (count > 0xffff) ? 0xffff : count;
3895 env->icount_decr.u16.low = decr;
3896 env->icount_extra = count;
3898 ret = cpu_exec(env);
3899 #ifdef CONFIG_PROFILER
3900 qemu_time += profile_getclock() - ti;
3903 /* Fold pending instructions back into the
3904 instruction counter, and clear the interrupt flag. */
3905 qemu_icount -= (env->icount_decr.u16.low
3906 + env->icount_extra);
3907 env->icount_decr.u32 = 0;
3908 env->icount_extra = 0;
3913 static void tcg_cpu_exec(void)
3917 if (next_cpu == NULL)
3918 next_cpu = first_cpu;
3919 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3920 CPUState *env = cur_cpu = next_cpu;
3924 if (timer_alarm_pending) {
3925 timer_alarm_pending = 0;
3928 if (cpu_can_run(env))
3929 ret = qemu_cpu_exec(env);
3930 if (ret == EXCP_DEBUG) {
3931 gdb_set_stop_cpu(env);
3932 debug_requested = 1;
3938 static int cpu_has_work(CPUState *env)
3946 if (qemu_cpu_has_work(env))
3951 static int tcg_has_work(void)
3955 for (env = first_cpu; env != NULL; env = env->next_cpu)
3956 if (cpu_has_work(env))
3961 static int qemu_calculate_timeout(void)
3963 #ifndef CONFIG_IOTHREAD
3968 else if (tcg_has_work())
3970 else if (!use_icount)
3973 /* XXX: use timeout computed from timers */
3976 /* Advance virtual time to the next event. */
3977 if (use_icount == 1) {
3978 /* When not using an adaptive execution frequency
3979 we tend to get badly out of sync with real time,
3980 so just delay for a reasonable amount of time. */
3983 delta = cpu_get_icount() - cpu_get_clock();
3986 /* If virtual time is ahead of real time then just
3988 timeout = (delta / 1000000) + 1;
3990 /* Wait for either IO to occur or the next
3992 add = qemu_next_deadline();
3993 /* We advance the timer before checking for IO.
3994 Limit the amount we advance so that early IO
3995 activity won't get the guest too far ahead. */
3999 add = (add + (1 << icount_time_shift) - 1)
4000 >> icount_time_shift;
4002 timeout = delta / 1000000;
4009 #else /* CONFIG_IOTHREAD */
4014 static int vm_can_run(void)
4016 if (powerdown_requested)
4018 if (reset_requested)
4020 if (shutdown_requested)
4022 if (debug_requested)
4027 qemu_irq qemu_system_powerdown;
4029 static void main_loop(void)
4033 #ifdef CONFIG_IOTHREAD
4034 qemu_system_ready = 1;
4035 qemu_cond_broadcast(&qemu_system_cond);
4040 #ifdef CONFIG_PROFILER
4043 #ifndef CONFIG_IOTHREAD
4046 #ifdef CONFIG_PROFILER
4047 ti = profile_getclock();
4049 main_loop_wait(qemu_calculate_timeout());
4050 #ifdef CONFIG_PROFILER
4051 dev_time += profile_getclock() - ti;
4053 } while (vm_can_run());
4055 if (qemu_debug_requested())
4056 vm_stop(EXCP_DEBUG);
4057 if (qemu_shutdown_requested()) {
4064 if (qemu_reset_requested()) {
4066 qemu_system_reset();
4069 if (qemu_powerdown_requested()) {
4070 qemu_irq_raise(qemu_system_powerdown);
4072 if ((r = qemu_vmstop_requested()))
4078 static void version(void)
4080 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4083 static void help(int exitcode)
4086 printf("usage: %s [options] [disk_image]\n"
4088 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4090 #define DEF(option, opt_arg, opt_enum, opt_help) \
4092 #define DEFHEADING(text) stringify(text) "\n"
4093 #include "qemu-options.h"
4098 "During emulation, the following keys are useful:\n"
4099 "ctrl-alt-f toggle full screen\n"
4100 "ctrl-alt-n switch to virtual console 'n'\n"
4101 "ctrl-alt toggle mouse and keyboard grab\n"
4103 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4108 DEFAULT_NETWORK_SCRIPT,
4109 DEFAULT_NETWORK_DOWN_SCRIPT,
4111 DEFAULT_GDBSTUB_PORT,
4116 #define HAS_ARG 0x0001
4119 #define DEF(option, opt_arg, opt_enum, opt_help) \
4121 #define DEFHEADING(text)
4122 #include "qemu-options.h"
4128 typedef struct QEMUOption {
4134 static const QEMUOption qemu_options[] = {
4135 { "h", 0, QEMU_OPTION_h },
4136 #define DEF(option, opt_arg, opt_enum, opt_help) \
4137 { option, opt_arg, opt_enum },
4138 #define DEFHEADING(text)
4139 #include "qemu-options.h"
4147 struct soundhw soundhw[] = {
4148 #ifdef HAS_AUDIO_CHOICE
4149 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4155 { .init_isa = pcspk_audio_init }
4162 "Creative Sound Blaster 16",
4165 { .init_isa = SB16_init }
4169 #ifdef CONFIG_CS4231A
4175 { .init_isa = cs4231a_init }
4183 "Yamaha YMF262 (OPL3)",
4185 "Yamaha YM3812 (OPL2)",
4189 { .init_isa = Adlib_init }
4196 "Gravis Ultrasound GF1",
4199 { .init_isa = GUS_init }
4206 "Intel 82801AA AC97 Audio",
4209 { .init_pci = ac97_init }
4213 #ifdef CONFIG_ES1370
4216 "ENSONIQ AudioPCI ES1370",
4219 { .init_pci = es1370_init }
4223 #endif /* HAS_AUDIO_CHOICE */
4225 { NULL, NULL, 0, 0, { NULL } }
4228 static void select_soundhw (const char *optarg)
4232 if (*optarg == '?') {
4235 printf ("Valid sound card names (comma separated):\n");
4236 for (c = soundhw; c->name; ++c) {
4237 printf ("%-11s %s\n", c->name, c->descr);
4239 printf ("\n-soundhw all will enable all of the above\n");
4240 exit (*optarg != '?');
4248 if (!strcmp (optarg, "all")) {
4249 for (c = soundhw; c->name; ++c) {
4257 e = strchr (p, ',');
4258 l = !e ? strlen (p) : (size_t) (e - p);
4260 for (c = soundhw; c->name; ++c) {
4261 if (!strncmp (c->name, p, l) && !c->name[l]) {
4270 "Unknown sound card name (too big to show)\n");
4273 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4278 p += l + (e != NULL);
4282 goto show_valid_cards;
4287 static void select_vgahw (const char *p)
4291 vga_interface_type = VGA_NONE;
4292 if (strstart(p, "std", &opts)) {
4293 vga_interface_type = VGA_STD;
4294 } else if (strstart(p, "cirrus", &opts)) {
4295 vga_interface_type = VGA_CIRRUS;
4296 } else if (strstart(p, "vmware", &opts)) {
4297 vga_interface_type = VGA_VMWARE;
4298 } else if (strstart(p, "xenfb", &opts)) {
4299 vga_interface_type = VGA_XENFB;
4300 } else if (!strstart(p, "none", &opts)) {
4302 fprintf(stderr, "Unknown vga type: %s\n", p);
4306 const char *nextopt;
4308 if (strstart(opts, ",retrace=", &nextopt)) {
4310 if (strstart(opts, "dumb", &nextopt))
4311 vga_retrace_method = VGA_RETRACE_DUMB;
4312 else if (strstart(opts, "precise", &nextopt))
4313 vga_retrace_method = VGA_RETRACE_PRECISE;
4314 else goto invalid_vga;
4315 } else goto invalid_vga;
4321 static int balloon_parse(const char *arg)
4325 if (strcmp(arg, "none") == 0) {
4329 if (!strncmp(arg, "virtio", 6)) {
4330 if (arg[6] == ',') {
4331 /* have params -> parse them */
4332 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4336 /* create empty opts */
4337 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4339 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4348 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4350 exit(STATUS_CONTROL_C_EXIT);
4355 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4359 if(strlen(str) != 36)
4362 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4363 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4364 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4370 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4378 static void termsig_handler(int signal)
4380 qemu_system_shutdown_request();
4383 static void sigchld_handler(int signal)
4385 waitpid(-1, NULL, WNOHANG);
4388 static void sighandler_setup(void)
4390 struct sigaction act;
4392 memset(&act, 0, sizeof(act));
4393 act.sa_handler = termsig_handler;
4394 sigaction(SIGINT, &act, NULL);
4395 sigaction(SIGHUP, &act, NULL);
4396 sigaction(SIGTERM, &act, NULL);
4398 act.sa_handler = sigchld_handler;
4399 act.sa_flags = SA_NOCLDSTOP;
4400 sigaction(SIGCHLD, &act, NULL);
4406 /* Look for support files in the same directory as the executable. */
4407 static char *find_datadir(const char *argv0)
4413 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4420 while (p != buf && *p != '\\')
4423 if (access(buf, R_OK) == 0) {
4424 return qemu_strdup(buf);
4430 /* Find a likely location for support files using the location of the binary.
4431 For installed binaries this will be "$bindir/../share/qemu". When
4432 running from the build tree this will be "$bindir/../pc-bios". */
4433 #define SHARE_SUFFIX "/share/qemu"
4434 #define BUILD_SUFFIX "/pc-bios"
4435 static char *find_datadir(const char *argv0)
4443 #if defined(__linux__)
4446 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4452 #elif defined(__FreeBSD__)
4455 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4462 /* If we don't have any way of figuring out the actual executable
4463 location then try argv[0]. */
4465 p = realpath(argv0, buf);
4473 max_len = strlen(dir) +
4474 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4475 res = qemu_mallocz(max_len);
4476 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4477 if (access(res, R_OK)) {
4478 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4479 if (access(res, R_OK)) {
4491 char *qemu_find_file(int type, const char *name)
4497 /* If name contains path separators then try it as a straight path. */
4498 if ((strchr(name, '/') || strchr(name, '\\'))
4499 && access(name, R_OK) == 0) {
4500 return qemu_strdup(name);
4503 case QEMU_FILE_TYPE_BIOS:
4506 case QEMU_FILE_TYPE_KEYMAP:
4507 subdir = "keymaps/";
4512 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4513 buf = qemu_mallocz(len);
4514 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4515 if (access(buf, R_OK)) {
4522 static int device_init_func(QemuOpts *opts, void *opaque)
4526 dev = qdev_device_add(opts);
4532 struct device_config {
4534 DEV_USB, /* -usbdevice */
4537 const char *cmdline;
4538 QTAILQ_ENTRY(device_config) next;
4540 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
4542 static void add_device_config(int type, const char *cmdline)
4544 struct device_config *conf;
4546 conf = qemu_mallocz(sizeof(*conf));
4548 conf->cmdline = cmdline;
4549 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
4552 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4554 struct device_config *conf;
4557 QTAILQ_FOREACH(conf, &device_configs, next) {
4558 if (conf->type != type)
4560 rc = func(conf->cmdline);
4567 int main(int argc, char **argv, char **envp)
4569 const char *gdbstub_dev = NULL;
4570 uint32_t boot_devices_bitmap = 0;
4572 int snapshot, linux_boot, net_boot;
4573 const char *initrd_filename;
4574 const char *kernel_filename, *kernel_cmdline;
4575 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4577 DisplayChangeListener *dcl;
4578 int cyls, heads, secs, translation;
4579 QemuOpts *hda_opts = NULL, *opts;
4581 const char *r, *optarg;
4582 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4583 const char *monitor_devices[MAX_MONITOR_DEVICES];
4584 int monitor_device_index;
4585 const char *serial_devices[MAX_SERIAL_PORTS];
4586 int serial_device_index;
4587 const char *parallel_devices[MAX_PARALLEL_PORTS];
4588 int parallel_device_index;
4589 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4590 int virtio_console_index;
4591 const char *loadvm = NULL;
4592 QEMUMachine *machine;
4593 const char *cpu_model;
4598 const char *pid_file = NULL;
4599 const char *incoming = NULL;
4602 struct passwd *pwd = NULL;
4603 const char *chroot_dir = NULL;
4604 const char *run_as = NULL;
4607 int show_vnc_port = 0;
4611 qemu_errors_to_file(stderr);
4612 qemu_cache_utils_init(envp);
4614 QLIST_INIT (&vm_change_state_head);
4617 struct sigaction act;
4618 sigfillset(&act.sa_mask);
4620 act.sa_handler = SIG_IGN;
4621 sigaction(SIGPIPE, &act, NULL);
4624 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4625 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4626 QEMU to run on a single CPU */
4631 h = GetCurrentProcess();
4632 if (GetProcessAffinityMask(h, &mask, &smask)) {
4633 for(i = 0; i < 32; i++) {
4634 if (mask & (1 << i))
4639 SetProcessAffinityMask(h, mask);
4645 module_call_init(MODULE_INIT_MACHINE);
4646 machine = find_default_machine();
4648 initrd_filename = NULL;
4651 kernel_filename = NULL;
4652 kernel_cmdline = "";
4653 cyls = heads = secs = 0;
4654 translation = BIOS_ATA_TRANSLATION_AUTO;
4656 serial_devices[0] = "vc:80Cx24C";
4657 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4658 serial_devices[i] = NULL;
4659 serial_device_index = 0;
4661 parallel_devices[0] = "vc:80Cx24C";
4662 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4663 parallel_devices[i] = NULL;
4664 parallel_device_index = 0;
4666 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4667 virtio_consoles[i] = NULL;
4668 virtio_console_index = 0;
4670 monitor_devices[0] = "vc:80Cx24C";
4671 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4672 monitor_devices[i] = NULL;
4674 monitor_device_index = 0;
4676 for (i = 0; i < MAX_NODES; i++) {
4678 node_cpumask[i] = 0;
4693 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4695 const QEMUOption *popt;
4698 /* Treat --foo the same as -foo. */
4701 popt = qemu_options;
4704 fprintf(stderr, "%s: invalid option -- '%s'\n",
4708 if (!strcmp(popt->name, r + 1))
4712 if (popt->flags & HAS_ARG) {
4713 if (optind >= argc) {
4714 fprintf(stderr, "%s: option '%s' requires an argument\n",
4718 optarg = argv[optind++];
4723 switch(popt->index) {
4725 machine = find_machine(optarg);
4728 printf("Supported machines are:\n");
4729 for(m = first_machine; m != NULL; m = m->next) {
4731 printf("%-10s %s (alias of %s)\n",
4732 m->alias, m->desc, m->name);
4733 printf("%-10s %s%s\n",
4735 m->is_default ? " (default)" : "");
4737 exit(*optarg != '?');
4740 case QEMU_OPTION_cpu:
4741 /* hw initialization will check this */
4742 if (*optarg == '?') {
4743 /* XXX: implement xxx_cpu_list for targets that still miss it */
4744 #if defined(cpu_list)
4745 cpu_list(stdout, &fprintf);
4752 case QEMU_OPTION_initrd:
4753 initrd_filename = optarg;
4755 case QEMU_OPTION_hda:
4757 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4759 hda_opts = drive_add(optarg, HD_ALIAS
4760 ",cyls=%d,heads=%d,secs=%d%s",
4761 0, cyls, heads, secs,
4762 translation == BIOS_ATA_TRANSLATION_LBA ?
4764 translation == BIOS_ATA_TRANSLATION_NONE ?
4765 ",trans=none" : "");
4767 case QEMU_OPTION_hdb:
4768 case QEMU_OPTION_hdc:
4769 case QEMU_OPTION_hdd:
4770 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4772 case QEMU_OPTION_drive:
4773 drive_add(NULL, "%s", optarg);
4775 case QEMU_OPTION_set:
4776 if (qemu_set_option(optarg) != 0)
4779 case QEMU_OPTION_mtdblock:
4780 drive_add(optarg, MTD_ALIAS);
4782 case QEMU_OPTION_sd:
4783 drive_add(optarg, SD_ALIAS);
4785 case QEMU_OPTION_pflash:
4786 drive_add(optarg, PFLASH_ALIAS);
4788 case QEMU_OPTION_snapshot:
4791 case QEMU_OPTION_hdachs:
4795 cyls = strtol(p, (char **)&p, 0);
4796 if (cyls < 1 || cyls > 16383)
4801 heads = strtol(p, (char **)&p, 0);
4802 if (heads < 1 || heads > 16)
4807 secs = strtol(p, (char **)&p, 0);
4808 if (secs < 1 || secs > 63)
4812 if (!strcmp(p, "none"))
4813 translation = BIOS_ATA_TRANSLATION_NONE;
4814 else if (!strcmp(p, "lba"))
4815 translation = BIOS_ATA_TRANSLATION_LBA;
4816 else if (!strcmp(p, "auto"))
4817 translation = BIOS_ATA_TRANSLATION_AUTO;
4820 } else if (*p != '\0') {
4822 fprintf(stderr, "qemu: invalid physical CHS format\n");
4825 if (hda_opts != NULL) {
4827 snprintf(num, sizeof(num), "%d", cyls);
4828 qemu_opt_set(hda_opts, "cyls", num);
4829 snprintf(num, sizeof(num), "%d", heads);
4830 qemu_opt_set(hda_opts, "heads", num);
4831 snprintf(num, sizeof(num), "%d", secs);
4832 qemu_opt_set(hda_opts, "secs", num);
4833 if (translation == BIOS_ATA_TRANSLATION_LBA)
4834 qemu_opt_set(hda_opts, "trans", "lba");
4835 if (translation == BIOS_ATA_TRANSLATION_NONE)
4836 qemu_opt_set(hda_opts, "trans", "none");
4840 case QEMU_OPTION_numa:
4841 if (nb_numa_nodes >= MAX_NODES) {
4842 fprintf(stderr, "qemu: too many NUMA nodes\n");
4847 case QEMU_OPTION_nographic:
4848 display_type = DT_NOGRAPHIC;
4850 #ifdef CONFIG_CURSES
4851 case QEMU_OPTION_curses:
4852 display_type = DT_CURSES;
4855 case QEMU_OPTION_portrait:
4858 case QEMU_OPTION_kernel:
4859 kernel_filename = optarg;
4861 case QEMU_OPTION_append:
4862 kernel_cmdline = optarg;
4864 case QEMU_OPTION_cdrom:
4865 drive_add(optarg, CDROM_ALIAS);
4867 case QEMU_OPTION_boot:
4869 static const char * const params[] = {
4870 "order", "once", "menu", NULL
4872 char buf[sizeof(boot_devices)];
4873 char *standard_boot_devices;
4876 if (!strchr(optarg, '=')) {
4878 pstrcpy(buf, sizeof(buf), optarg);
4879 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
4881 "qemu: unknown boot parameter '%s' in '%s'\n",
4887 get_param_value(buf, sizeof(buf), "order", optarg)) {
4888 boot_devices_bitmap = parse_bootdevices(buf);
4889 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4892 if (get_param_value(buf, sizeof(buf),
4894 boot_devices_bitmap |= parse_bootdevices(buf);
4895 standard_boot_devices = qemu_strdup(boot_devices);
4896 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4897 qemu_register_reset(restore_boot_devices,
4898 standard_boot_devices);
4900 if (get_param_value(buf, sizeof(buf),
4902 if (!strcmp(buf, "on")) {
4904 } else if (!strcmp(buf, "off")) {
4908 "qemu: invalid option value '%s'\n",
4916 case QEMU_OPTION_fda:
4917 case QEMU_OPTION_fdb:
4918 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
4921 case QEMU_OPTION_no_fd_bootchk:
4925 case QEMU_OPTION_netdev:
4926 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
4930 case QEMU_OPTION_net:
4931 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
4936 case QEMU_OPTION_tftp:
4937 legacy_tftp_prefix = optarg;
4939 case QEMU_OPTION_bootp:
4940 legacy_bootp_filename = optarg;
4943 case QEMU_OPTION_smb:
4944 if (net_slirp_smb(optarg) < 0)
4948 case QEMU_OPTION_redir:
4949 if (net_slirp_redir(optarg) < 0)
4953 case QEMU_OPTION_bt:
4954 add_device_config(DEV_BT, optarg);
4957 case QEMU_OPTION_audio_help:
4961 case QEMU_OPTION_soundhw:
4962 select_soundhw (optarg);
4968 case QEMU_OPTION_version:
4972 case QEMU_OPTION_m: {
4976 value = strtoul(optarg, &ptr, 10);
4978 case 0: case 'M': case 'm':
4985 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
4989 /* On 32-bit hosts, QEMU is limited by virtual address space */
4990 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
4991 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4994 if (value != (uint64_t)(ram_addr_t)value) {
4995 fprintf(stderr, "qemu: ram size too large\n");
5004 const CPULogItem *item;
5006 mask = cpu_str_to_log_mask(optarg);
5008 printf("Log items (comma separated):\n");
5009 for(item = cpu_log_items; item->mask != 0; item++) {
5010 printf("%-10s %s\n", item->name, item->help);
5018 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5020 case QEMU_OPTION_gdb:
5021 gdbstub_dev = optarg;
5026 case QEMU_OPTION_bios:
5029 case QEMU_OPTION_singlestep:
5037 keyboard_layout = optarg;
5040 case QEMU_OPTION_localtime:
5043 case QEMU_OPTION_vga:
5044 select_vgahw (optarg);
5046 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5052 w = strtol(p, (char **)&p, 10);
5055 fprintf(stderr, "qemu: invalid resolution or depth\n");
5061 h = strtol(p, (char **)&p, 10);
5066 depth = strtol(p, (char **)&p, 10);
5067 if (depth != 8 && depth != 15 && depth != 16 &&
5068 depth != 24 && depth != 32)
5070 } else if (*p == '\0') {
5071 depth = graphic_depth;
5078 graphic_depth = depth;
5082 case QEMU_OPTION_echr:
5085 term_escape_char = strtol(optarg, &r, 0);
5087 printf("Bad argument to echr\n");
5090 case QEMU_OPTION_monitor:
5091 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5092 fprintf(stderr, "qemu: too many monitor devices\n");
5095 monitor_devices[monitor_device_index] = optarg;
5096 monitor_device_index++;
5098 case QEMU_OPTION_chardev:
5099 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5101 fprintf(stderr, "parse error: %s\n", optarg);
5104 if (qemu_chr_open_opts(opts, NULL) == NULL) {
5108 case QEMU_OPTION_serial:
5109 if (serial_device_index >= MAX_SERIAL_PORTS) {
5110 fprintf(stderr, "qemu: too many serial ports\n");
5113 serial_devices[serial_device_index] = optarg;
5114 serial_device_index++;
5116 case QEMU_OPTION_watchdog:
5119 "qemu: only one watchdog option may be given\n");
5124 case QEMU_OPTION_watchdog_action:
5125 if (select_watchdog_action(optarg) == -1) {
5126 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5130 case QEMU_OPTION_virtiocon:
5131 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5132 fprintf(stderr, "qemu: too many virtio consoles\n");
5135 virtio_consoles[virtio_console_index] = optarg;
5136 virtio_console_index++;
5138 case QEMU_OPTION_parallel:
5139 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5140 fprintf(stderr, "qemu: too many parallel ports\n");
5143 parallel_devices[parallel_device_index] = optarg;
5144 parallel_device_index++;
5146 case QEMU_OPTION_loadvm:
5149 case QEMU_OPTION_full_screen:
5153 case QEMU_OPTION_no_frame:
5156 case QEMU_OPTION_alt_grab:
5159 case QEMU_OPTION_ctrl_grab:
5162 case QEMU_OPTION_no_quit:
5165 case QEMU_OPTION_sdl:
5166 display_type = DT_SDL;
5169 case QEMU_OPTION_pidfile:
5173 case QEMU_OPTION_win2k_hack:
5174 win2k_install_hack = 1;
5176 case QEMU_OPTION_rtc_td_hack:
5179 case QEMU_OPTION_acpitable:
5180 if(acpi_table_add(optarg) < 0) {
5181 fprintf(stderr, "Wrong acpi table provided\n");
5185 case QEMU_OPTION_smbios:
5186 if(smbios_entry_add(optarg) < 0) {
5187 fprintf(stderr, "Wrong smbios provided\n");
5193 case QEMU_OPTION_enable_kvm:
5197 case QEMU_OPTION_usb:
5200 case QEMU_OPTION_usbdevice:
5202 add_device_config(DEV_USB, optarg);
5204 case QEMU_OPTION_device:
5205 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
5209 case QEMU_OPTION_smp:
5212 fprintf(stderr, "Invalid number of CPUs\n");
5215 if (max_cpus < smp_cpus) {
5216 fprintf(stderr, "maxcpus must be equal to or greater than "
5220 if (max_cpus > 255) {
5221 fprintf(stderr, "Unsupported number of maxcpus\n");
5225 case QEMU_OPTION_vnc:
5226 display_type = DT_VNC;
5227 vnc_display = optarg;
5230 case QEMU_OPTION_no_acpi:
5233 case QEMU_OPTION_no_hpet:
5236 case QEMU_OPTION_balloon:
5237 if (balloon_parse(optarg) < 0) {
5238 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5243 case QEMU_OPTION_no_reboot:
5246 case QEMU_OPTION_no_shutdown:
5249 case QEMU_OPTION_show_cursor:
5252 case QEMU_OPTION_uuid:
5253 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5254 fprintf(stderr, "Fail to parse UUID string."
5255 " Wrong format.\n");
5260 case QEMU_OPTION_daemonize:
5264 case QEMU_OPTION_option_rom:
5265 if (nb_option_roms >= MAX_OPTION_ROMS) {
5266 fprintf(stderr, "Too many option ROMs\n");
5269 option_rom[nb_option_roms] = optarg;
5272 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5273 case QEMU_OPTION_semihosting:
5274 semihosting_enabled = 1;
5277 case QEMU_OPTION_name:
5278 qemu_name = qemu_strdup(optarg);
5280 char *p = strchr(qemu_name, ',');
5283 if (strncmp(p, "process=", 8)) {
5284 fprintf(stderr, "Unknown subargument %s to -name", p);
5292 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5293 case QEMU_OPTION_prom_env:
5294 if (nb_prom_envs >= MAX_PROM_ENVS) {
5295 fprintf(stderr, "Too many prom variables\n");
5298 prom_envs[nb_prom_envs] = optarg;
5303 case QEMU_OPTION_old_param:
5307 case QEMU_OPTION_clock:
5308 configure_alarms(optarg);
5310 case QEMU_OPTION_startdate:
5311 configure_rtc_date_offset(optarg, 1);
5313 case QEMU_OPTION_rtc:
5314 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5316 fprintf(stderr, "parse error: %s\n", optarg);
5319 configure_rtc(opts);
5321 case QEMU_OPTION_tb_size:
5322 tb_size = strtol(optarg, NULL, 0);
5326 case QEMU_OPTION_icount:
5328 if (strcmp(optarg, "auto") == 0) {
5329 icount_time_shift = -1;
5331 icount_time_shift = strtol(optarg, NULL, 0);
5334 case QEMU_OPTION_incoming:
5338 case QEMU_OPTION_chroot:
5339 chroot_dir = optarg;
5341 case QEMU_OPTION_runas:
5346 case QEMU_OPTION_xen_domid:
5347 xen_domid = atoi(optarg);
5349 case QEMU_OPTION_xen_create:
5350 xen_mode = XEN_CREATE;
5352 case QEMU_OPTION_xen_attach:
5353 xen_mode = XEN_ATTACH;
5360 /* If no data_dir is specified then try to find it relative to the
5363 data_dir = find_datadir(argv[0]);
5365 /* If all else fails use the install patch specified when building. */
5367 data_dir = CONFIG_QEMU_SHAREDIR;
5371 * Default to max_cpus = smp_cpus, in case the user doesn't
5372 * specify a max_cpus value.
5375 max_cpus = smp_cpus;
5377 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5378 if (smp_cpus > machine->max_cpus) {
5379 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5380 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5385 if (display_type == DT_NOGRAPHIC) {
5386 if (serial_device_index == 0)
5387 serial_devices[0] = "stdio";
5388 if (parallel_device_index == 0)
5389 parallel_devices[0] = "null";
5390 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5391 monitor_devices[0] = "stdio";
5399 if (pipe(fds) == -1)
5410 len = read(fds[0], &status, 1);
5411 if (len == -1 && (errno == EINTR))
5416 else if (status == 1) {
5417 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
5434 signal(SIGTSTP, SIG_IGN);
5435 signal(SIGTTOU, SIG_IGN);
5436 signal(SIGTTIN, SIG_IGN);
5439 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5442 write(fds[1], &status, 1);
5444 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
5449 if (kvm_enabled()) {
5452 ret = kvm_init(smp_cpus);
5454 fprintf(stderr, "failed to initialize KVM\n");
5459 if (qemu_init_main_loop()) {
5460 fprintf(stderr, "qemu_init_main_loop failed\n");
5463 linux_boot = (kernel_filename != NULL);
5465 if (!linux_boot && *kernel_cmdline != '\0') {
5466 fprintf(stderr, "-append only allowed with -kernel option\n");
5470 if (!linux_boot && initrd_filename != NULL) {
5471 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5476 /* Win32 doesn't support line-buffering and requires size >= 2 */
5477 setvbuf(stdout, NULL, _IOLBF, 0);
5480 if (init_timer_alarm() < 0) {
5481 fprintf(stderr, "could not initialize alarm timer\n");
5484 if (use_icount && icount_time_shift < 0) {
5486 /* 125MIPS seems a reasonable initial guess at the guest speed.
5487 It will be corrected fairly quickly anyway. */
5488 icount_time_shift = 3;
5489 init_icount_adjust();
5496 if (net_init_clients() < 0) {
5500 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5501 net_set_boot_mask(net_boot);
5503 /* init the bluetooth world */
5504 if (foreach_device_config(DEV_BT, bt_parse))
5507 /* init the memory */
5509 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5511 /* init the dynamic translator */
5512 cpu_exec_init_all(tb_size * 1024 * 1024);
5516 /* we always create the cdrom drive, even if no disk is there */
5517 drive_add(NULL, CDROM_ALIAS);
5519 /* we always create at least one floppy */
5520 drive_add(NULL, FD_ALIAS, 0);
5522 /* we always create one sd slot, even if no card is in it */
5523 drive_add(NULL, SD_ALIAS);
5525 /* open the virtual block devices */
5527 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5528 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5531 vmstate_register(0, &vmstate_timers ,&timers_state);
5532 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5534 /* Maintain compatibility with multiple stdio monitors */
5535 if (!strcmp(monitor_devices[0],"stdio")) {
5536 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5537 const char *devname = serial_devices[i];
5538 if (devname && !strcmp(devname,"mon:stdio")) {
5539 monitor_devices[0] = NULL;
5541 } else if (devname && !strcmp(devname,"stdio")) {
5542 monitor_devices[0] = NULL;
5543 serial_devices[i] = "mon:stdio";
5549 if (nb_numa_nodes > 0) {
5552 if (nb_numa_nodes > smp_cpus) {
5553 nb_numa_nodes = smp_cpus;
5556 /* If no memory size if given for any node, assume the default case
5557 * and distribute the available memory equally across all nodes
5559 for (i = 0; i < nb_numa_nodes; i++) {
5560 if (node_mem[i] != 0)
5563 if (i == nb_numa_nodes) {
5564 uint64_t usedmem = 0;
5566 /* On Linux, the each node's border has to be 8MB aligned,
5567 * the final node gets the rest.
5569 for (i = 0; i < nb_numa_nodes - 1; i++) {
5570 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5571 usedmem += node_mem[i];
5573 node_mem[i] = ram_size - usedmem;
5576 for (i = 0; i < nb_numa_nodes; i++) {
5577 if (node_cpumask[i] != 0)
5580 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5581 * must cope with this anyway, because there are BIOSes out there in
5582 * real machines which also use this scheme.
5584 if (i == nb_numa_nodes) {
5585 for (i = 0; i < smp_cpus; i++) {
5586 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5591 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5592 const char *devname = monitor_devices[i];
5593 if (devname && strcmp(devname, "none")) {
5596 snprintf(label, sizeof(label), "monitor");
5598 snprintf(label, sizeof(label), "monitor%d", i);
5600 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5601 if (!monitor_hds[i]) {
5602 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5609 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5610 const char *devname = serial_devices[i];
5611 if (devname && strcmp(devname, "none")) {
5613 snprintf(label, sizeof(label), "serial%d", i);
5614 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5615 if (!serial_hds[i]) {
5616 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
5617 devname, strerror(errno));
5623 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5624 const char *devname = parallel_devices[i];
5625 if (devname && strcmp(devname, "none")) {
5627 snprintf(label, sizeof(label), "parallel%d", i);
5628 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5629 if (!parallel_hds[i]) {
5630 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
5631 devname, strerror(errno));
5637 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5638 const char *devname = virtio_consoles[i];
5639 if (devname && strcmp(devname, "none")) {
5641 snprintf(label, sizeof(label), "virtcon%d", i);
5642 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5643 if (!virtcon_hds[i]) {
5644 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
5645 devname, strerror(errno));
5651 module_call_init(MODULE_INIT_DEVICE);
5654 i = select_watchdog(watchdog);
5656 exit (i == 1 ? 1 : 0);
5659 if (machine->compat_props) {
5660 qdev_prop_register_compat(machine->compat_props);
5662 machine->init(ram_size, boot_devices,
5663 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5667 /* must be after terminal init, SDL library changes signal handlers */
5671 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5672 for (i = 0; i < nb_numa_nodes; i++) {
5673 if (node_cpumask[i] & (1 << env->cpu_index)) {
5679 current_machine = machine;
5681 /* init USB devices */
5683 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5687 /* init generic devices */
5688 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5692 dumb_display_init();
5693 /* just use the first displaystate for the moment */
5696 if (display_type == DT_DEFAULT) {
5697 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5698 display_type = DT_SDL;
5700 display_type = DT_VNC;
5701 vnc_display = "localhost:0,to=99";
5707 switch (display_type) {
5710 #if defined(CONFIG_CURSES)
5712 curses_display_init(ds, full_screen);
5715 #if defined(CONFIG_SDL)
5717 sdl_display_init(ds, full_screen, no_frame);
5719 #elif defined(CONFIG_COCOA)
5721 cocoa_display_init(ds, full_screen);
5725 vnc_display_init(ds);
5726 if (vnc_display_open(ds, vnc_display) < 0)
5729 if (show_vnc_port) {
5730 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5738 dcl = ds->listeners;
5739 while (dcl != NULL) {
5740 if (dcl->dpy_refresh != NULL) {
5741 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5742 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5747 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5748 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5749 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5752 text_consoles_set_display(display_state);
5753 qemu_chr_initial_reset();
5755 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5756 if (monitor_devices[i] && monitor_hds[i]) {
5757 monitor_init(monitor_hds[i],
5758 MONITOR_USE_READLINE |
5759 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
5763 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5764 const char *devname = serial_devices[i];
5765 if (devname && strcmp(devname, "none")) {
5766 if (strstart(devname, "vc", 0))
5767 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
5771 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5772 const char *devname = parallel_devices[i];
5773 if (devname && strcmp(devname, "none")) {
5774 if (strstart(devname, "vc", 0))
5775 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
5779 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5780 const char *devname = virtio_consoles[i];
5781 if (virtcon_hds[i] && devname) {
5782 if (strstart(devname, "vc", 0))
5783 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
5787 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5788 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5793 qdev_machine_creation_done();
5798 if (load_vmstate(cur_mon, loadvm) < 0) {
5804 qemu_start_incoming_migration(incoming);
5805 } else if (autostart) {
5815 len = write(fds[1], &status, 1);
5816 if (len == -1 && (errno == EINTR))
5823 TFR(fd = open("/dev/null", O_RDWR));
5829 pwd = getpwnam(run_as);
5831 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5837 if (chroot(chroot_dir) < 0) {
5838 fprintf(stderr, "chroot failed\n");
5845 if (setgid(pwd->pw_gid) < 0) {
5846 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
5849 if (setuid(pwd->pw_uid) < 0) {
5850 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
5853 if (setuid(0) != -1) {
5854 fprintf(stderr, "Dropping privileges failed\n");