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);
4037 qemu_system_reset();
4041 #ifdef CONFIG_PROFILER
4044 #ifndef CONFIG_IOTHREAD
4047 #ifdef CONFIG_PROFILER
4048 ti = profile_getclock();
4050 main_loop_wait(qemu_calculate_timeout());
4051 #ifdef CONFIG_PROFILER
4052 dev_time += profile_getclock() - ti;
4054 } while (vm_can_run());
4056 if (qemu_debug_requested())
4057 vm_stop(EXCP_DEBUG);
4058 if (qemu_shutdown_requested()) {
4065 if (qemu_reset_requested()) {
4067 qemu_system_reset();
4070 if (qemu_powerdown_requested()) {
4071 qemu_irq_raise(qemu_system_powerdown);
4073 if ((r = qemu_vmstop_requested()))
4079 static void version(void)
4081 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4084 static void help(int exitcode)
4087 printf("usage: %s [options] [disk_image]\n"
4089 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4091 #define DEF(option, opt_arg, opt_enum, opt_help) \
4093 #define DEFHEADING(text) stringify(text) "\n"
4094 #include "qemu-options.h"
4099 "During emulation, the following keys are useful:\n"
4100 "ctrl-alt-f toggle full screen\n"
4101 "ctrl-alt-n switch to virtual console 'n'\n"
4102 "ctrl-alt toggle mouse and keyboard grab\n"
4104 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4109 DEFAULT_NETWORK_SCRIPT,
4110 DEFAULT_NETWORK_DOWN_SCRIPT,
4112 DEFAULT_GDBSTUB_PORT,
4117 #define HAS_ARG 0x0001
4120 #define DEF(option, opt_arg, opt_enum, opt_help) \
4122 #define DEFHEADING(text)
4123 #include "qemu-options.h"
4129 typedef struct QEMUOption {
4135 static const QEMUOption qemu_options[] = {
4136 { "h", 0, QEMU_OPTION_h },
4137 #define DEF(option, opt_arg, opt_enum, opt_help) \
4138 { option, opt_arg, opt_enum },
4139 #define DEFHEADING(text)
4140 #include "qemu-options.h"
4148 struct soundhw soundhw[] = {
4149 #ifdef HAS_AUDIO_CHOICE
4150 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4156 { .init_isa = pcspk_audio_init }
4163 "Creative Sound Blaster 16",
4166 { .init_isa = SB16_init }
4170 #ifdef CONFIG_CS4231A
4176 { .init_isa = cs4231a_init }
4184 "Yamaha YMF262 (OPL3)",
4186 "Yamaha YM3812 (OPL2)",
4190 { .init_isa = Adlib_init }
4197 "Gravis Ultrasound GF1",
4200 { .init_isa = GUS_init }
4207 "Intel 82801AA AC97 Audio",
4210 { .init_pci = ac97_init }
4214 #ifdef CONFIG_ES1370
4217 "ENSONIQ AudioPCI ES1370",
4220 { .init_pci = es1370_init }
4224 #endif /* HAS_AUDIO_CHOICE */
4226 { NULL, NULL, 0, 0, { NULL } }
4229 static void select_soundhw (const char *optarg)
4233 if (*optarg == '?') {
4236 printf ("Valid sound card names (comma separated):\n");
4237 for (c = soundhw; c->name; ++c) {
4238 printf ("%-11s %s\n", c->name, c->descr);
4240 printf ("\n-soundhw all will enable all of the above\n");
4241 exit (*optarg != '?');
4249 if (!strcmp (optarg, "all")) {
4250 for (c = soundhw; c->name; ++c) {
4258 e = strchr (p, ',');
4259 l = !e ? strlen (p) : (size_t) (e - p);
4261 for (c = soundhw; c->name; ++c) {
4262 if (!strncmp (c->name, p, l) && !c->name[l]) {
4271 "Unknown sound card name (too big to show)\n");
4274 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4279 p += l + (e != NULL);
4283 goto show_valid_cards;
4288 static void select_vgahw (const char *p)
4292 vga_interface_type = VGA_NONE;
4293 if (strstart(p, "std", &opts)) {
4294 vga_interface_type = VGA_STD;
4295 } else if (strstart(p, "cirrus", &opts)) {
4296 vga_interface_type = VGA_CIRRUS;
4297 } else if (strstart(p, "vmware", &opts)) {
4298 vga_interface_type = VGA_VMWARE;
4299 } else if (strstart(p, "xenfb", &opts)) {
4300 vga_interface_type = VGA_XENFB;
4301 } else if (!strstart(p, "none", &opts)) {
4303 fprintf(stderr, "Unknown vga type: %s\n", p);
4307 const char *nextopt;
4309 if (strstart(opts, ",retrace=", &nextopt)) {
4311 if (strstart(opts, "dumb", &nextopt))
4312 vga_retrace_method = VGA_RETRACE_DUMB;
4313 else if (strstart(opts, "precise", &nextopt))
4314 vga_retrace_method = VGA_RETRACE_PRECISE;
4315 else goto invalid_vga;
4316 } else goto invalid_vga;
4322 static int balloon_parse(const char *arg)
4326 if (strcmp(arg, "none") == 0) {
4330 if (!strncmp(arg, "virtio", 6)) {
4331 if (arg[6] == ',') {
4332 /* have params -> parse them */
4333 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4337 /* create empty opts */
4338 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4340 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4349 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4351 exit(STATUS_CONTROL_C_EXIT);
4356 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4360 if(strlen(str) != 36)
4363 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4364 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4365 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4371 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4379 static void termsig_handler(int signal)
4381 qemu_system_shutdown_request();
4384 static void sigchld_handler(int signal)
4386 waitpid(-1, NULL, WNOHANG);
4389 static void sighandler_setup(void)
4391 struct sigaction act;
4393 memset(&act, 0, sizeof(act));
4394 act.sa_handler = termsig_handler;
4395 sigaction(SIGINT, &act, NULL);
4396 sigaction(SIGHUP, &act, NULL);
4397 sigaction(SIGTERM, &act, NULL);
4399 act.sa_handler = sigchld_handler;
4400 act.sa_flags = SA_NOCLDSTOP;
4401 sigaction(SIGCHLD, &act, NULL);
4407 /* Look for support files in the same directory as the executable. */
4408 static char *find_datadir(const char *argv0)
4414 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4421 while (p != buf && *p != '\\')
4424 if (access(buf, R_OK) == 0) {
4425 return qemu_strdup(buf);
4431 /* Find a likely location for support files using the location of the binary.
4432 For installed binaries this will be "$bindir/../share/qemu". When
4433 running from the build tree this will be "$bindir/../pc-bios". */
4434 #define SHARE_SUFFIX "/share/qemu"
4435 #define BUILD_SUFFIX "/pc-bios"
4436 static char *find_datadir(const char *argv0)
4444 #if defined(__linux__)
4447 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4453 #elif defined(__FreeBSD__)
4456 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4463 /* If we don't have any way of figuring out the actual executable
4464 location then try argv[0]. */
4466 p = realpath(argv0, buf);
4474 max_len = strlen(dir) +
4475 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4476 res = qemu_mallocz(max_len);
4477 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4478 if (access(res, R_OK)) {
4479 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4480 if (access(res, R_OK)) {
4492 char *qemu_find_file(int type, const char *name)
4498 /* If name contains path separators then try it as a straight path. */
4499 if ((strchr(name, '/') || strchr(name, '\\'))
4500 && access(name, R_OK) == 0) {
4501 return qemu_strdup(name);
4504 case QEMU_FILE_TYPE_BIOS:
4507 case QEMU_FILE_TYPE_KEYMAP:
4508 subdir = "keymaps/";
4513 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4514 buf = qemu_mallocz(len);
4515 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4516 if (access(buf, R_OK)) {
4523 static int device_init_func(QemuOpts *opts, void *opaque)
4527 dev = qdev_device_add(opts);
4533 struct device_config {
4535 DEV_USB, /* -usbdevice */
4538 const char *cmdline;
4539 QTAILQ_ENTRY(device_config) next;
4541 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
4543 static void add_device_config(int type, const char *cmdline)
4545 struct device_config *conf;
4547 conf = qemu_mallocz(sizeof(*conf));
4549 conf->cmdline = cmdline;
4550 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
4553 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4555 struct device_config *conf;
4558 QTAILQ_FOREACH(conf, &device_configs, next) {
4559 if (conf->type != type)
4561 rc = func(conf->cmdline);
4568 int main(int argc, char **argv, char **envp)
4570 const char *gdbstub_dev = NULL;
4571 uint32_t boot_devices_bitmap = 0;
4573 int snapshot, linux_boot, net_boot;
4574 const char *initrd_filename;
4575 const char *kernel_filename, *kernel_cmdline;
4576 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4578 DisplayChangeListener *dcl;
4579 int cyls, heads, secs, translation;
4580 QemuOpts *hda_opts = NULL, *opts;
4582 const char *r, *optarg;
4583 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4584 const char *monitor_devices[MAX_MONITOR_DEVICES];
4585 int monitor_device_index;
4586 const char *serial_devices[MAX_SERIAL_PORTS];
4587 int serial_device_index;
4588 const char *parallel_devices[MAX_PARALLEL_PORTS];
4589 int parallel_device_index;
4590 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4591 int virtio_console_index;
4592 const char *loadvm = NULL;
4593 QEMUMachine *machine;
4594 const char *cpu_model;
4599 const char *pid_file = NULL;
4600 const char *incoming = NULL;
4603 struct passwd *pwd = NULL;
4604 const char *chroot_dir = NULL;
4605 const char *run_as = NULL;
4608 int show_vnc_port = 0;
4612 qemu_errors_to_file(stderr);
4613 qemu_cache_utils_init(envp);
4615 QLIST_INIT (&vm_change_state_head);
4618 struct sigaction act;
4619 sigfillset(&act.sa_mask);
4621 act.sa_handler = SIG_IGN;
4622 sigaction(SIGPIPE, &act, NULL);
4625 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4626 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4627 QEMU to run on a single CPU */
4632 h = GetCurrentProcess();
4633 if (GetProcessAffinityMask(h, &mask, &smask)) {
4634 for(i = 0; i < 32; i++) {
4635 if (mask & (1 << i))
4640 SetProcessAffinityMask(h, mask);
4646 module_call_init(MODULE_INIT_MACHINE);
4647 machine = find_default_machine();
4649 initrd_filename = NULL;
4652 kernel_filename = NULL;
4653 kernel_cmdline = "";
4654 cyls = heads = secs = 0;
4655 translation = BIOS_ATA_TRANSLATION_AUTO;
4657 serial_devices[0] = "vc:80Cx24C";
4658 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4659 serial_devices[i] = NULL;
4660 serial_device_index = 0;
4662 parallel_devices[0] = "vc:80Cx24C";
4663 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4664 parallel_devices[i] = NULL;
4665 parallel_device_index = 0;
4667 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4668 virtio_consoles[i] = NULL;
4669 virtio_console_index = 0;
4671 monitor_devices[0] = "vc:80Cx24C";
4672 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4673 monitor_devices[i] = NULL;
4675 monitor_device_index = 0;
4677 for (i = 0; i < MAX_NODES; i++) {
4679 node_cpumask[i] = 0;
4694 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4696 const QEMUOption *popt;
4699 /* Treat --foo the same as -foo. */
4702 popt = qemu_options;
4705 fprintf(stderr, "%s: invalid option -- '%s'\n",
4709 if (!strcmp(popt->name, r + 1))
4713 if (popt->flags & HAS_ARG) {
4714 if (optind >= argc) {
4715 fprintf(stderr, "%s: option '%s' requires an argument\n",
4719 optarg = argv[optind++];
4724 switch(popt->index) {
4726 machine = find_machine(optarg);
4729 printf("Supported machines are:\n");
4730 for(m = first_machine; m != NULL; m = m->next) {
4732 printf("%-10s %s (alias of %s)\n",
4733 m->alias, m->desc, m->name);
4734 printf("%-10s %s%s\n",
4736 m->is_default ? " (default)" : "");
4738 exit(*optarg != '?');
4741 case QEMU_OPTION_cpu:
4742 /* hw initialization will check this */
4743 if (*optarg == '?') {
4744 /* XXX: implement xxx_cpu_list for targets that still miss it */
4745 #if defined(cpu_list)
4746 cpu_list(stdout, &fprintf);
4753 case QEMU_OPTION_initrd:
4754 initrd_filename = optarg;
4756 case QEMU_OPTION_hda:
4758 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4760 hda_opts = drive_add(optarg, HD_ALIAS
4761 ",cyls=%d,heads=%d,secs=%d%s",
4762 0, cyls, heads, secs,
4763 translation == BIOS_ATA_TRANSLATION_LBA ?
4765 translation == BIOS_ATA_TRANSLATION_NONE ?
4766 ",trans=none" : "");
4768 case QEMU_OPTION_hdb:
4769 case QEMU_OPTION_hdc:
4770 case QEMU_OPTION_hdd:
4771 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4773 case QEMU_OPTION_drive:
4774 drive_add(NULL, "%s", optarg);
4776 case QEMU_OPTION_set:
4777 if (qemu_set_option(optarg) != 0)
4780 case QEMU_OPTION_mtdblock:
4781 drive_add(optarg, MTD_ALIAS);
4783 case QEMU_OPTION_sd:
4784 drive_add(optarg, SD_ALIAS);
4786 case QEMU_OPTION_pflash:
4787 drive_add(optarg, PFLASH_ALIAS);
4789 case QEMU_OPTION_snapshot:
4792 case QEMU_OPTION_hdachs:
4796 cyls = strtol(p, (char **)&p, 0);
4797 if (cyls < 1 || cyls > 16383)
4802 heads = strtol(p, (char **)&p, 0);
4803 if (heads < 1 || heads > 16)
4808 secs = strtol(p, (char **)&p, 0);
4809 if (secs < 1 || secs > 63)
4813 if (!strcmp(p, "none"))
4814 translation = BIOS_ATA_TRANSLATION_NONE;
4815 else if (!strcmp(p, "lba"))
4816 translation = BIOS_ATA_TRANSLATION_LBA;
4817 else if (!strcmp(p, "auto"))
4818 translation = BIOS_ATA_TRANSLATION_AUTO;
4821 } else if (*p != '\0') {
4823 fprintf(stderr, "qemu: invalid physical CHS format\n");
4826 if (hda_opts != NULL) {
4828 snprintf(num, sizeof(num), "%d", cyls);
4829 qemu_opt_set(hda_opts, "cyls", num);
4830 snprintf(num, sizeof(num), "%d", heads);
4831 qemu_opt_set(hda_opts, "heads", num);
4832 snprintf(num, sizeof(num), "%d", secs);
4833 qemu_opt_set(hda_opts, "secs", num);
4834 if (translation == BIOS_ATA_TRANSLATION_LBA)
4835 qemu_opt_set(hda_opts, "trans", "lba");
4836 if (translation == BIOS_ATA_TRANSLATION_NONE)
4837 qemu_opt_set(hda_opts, "trans", "none");
4841 case QEMU_OPTION_numa:
4842 if (nb_numa_nodes >= MAX_NODES) {
4843 fprintf(stderr, "qemu: too many NUMA nodes\n");
4848 case QEMU_OPTION_nographic:
4849 display_type = DT_NOGRAPHIC;
4851 #ifdef CONFIG_CURSES
4852 case QEMU_OPTION_curses:
4853 display_type = DT_CURSES;
4856 case QEMU_OPTION_portrait:
4859 case QEMU_OPTION_kernel:
4860 kernel_filename = optarg;
4862 case QEMU_OPTION_append:
4863 kernel_cmdline = optarg;
4865 case QEMU_OPTION_cdrom:
4866 drive_add(optarg, CDROM_ALIAS);
4868 case QEMU_OPTION_boot:
4870 static const char * const params[] = {
4871 "order", "once", "menu", NULL
4873 char buf[sizeof(boot_devices)];
4874 char *standard_boot_devices;
4877 if (!strchr(optarg, '=')) {
4879 pstrcpy(buf, sizeof(buf), optarg);
4880 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
4882 "qemu: unknown boot parameter '%s' in '%s'\n",
4888 get_param_value(buf, sizeof(buf), "order", optarg)) {
4889 boot_devices_bitmap = parse_bootdevices(buf);
4890 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4893 if (get_param_value(buf, sizeof(buf),
4895 boot_devices_bitmap |= parse_bootdevices(buf);
4896 standard_boot_devices = qemu_strdup(boot_devices);
4897 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4898 qemu_register_reset(restore_boot_devices,
4899 standard_boot_devices);
4901 if (get_param_value(buf, sizeof(buf),
4903 if (!strcmp(buf, "on")) {
4905 } else if (!strcmp(buf, "off")) {
4909 "qemu: invalid option value '%s'\n",
4917 case QEMU_OPTION_fda:
4918 case QEMU_OPTION_fdb:
4919 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
4922 case QEMU_OPTION_no_fd_bootchk:
4926 case QEMU_OPTION_netdev:
4927 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
4931 case QEMU_OPTION_net:
4932 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
4937 case QEMU_OPTION_tftp:
4938 legacy_tftp_prefix = optarg;
4940 case QEMU_OPTION_bootp:
4941 legacy_bootp_filename = optarg;
4944 case QEMU_OPTION_smb:
4945 if (net_slirp_smb(optarg) < 0)
4949 case QEMU_OPTION_redir:
4950 if (net_slirp_redir(optarg) < 0)
4954 case QEMU_OPTION_bt:
4955 add_device_config(DEV_BT, optarg);
4958 case QEMU_OPTION_audio_help:
4962 case QEMU_OPTION_soundhw:
4963 select_soundhw (optarg);
4969 case QEMU_OPTION_version:
4973 case QEMU_OPTION_m: {
4977 value = strtoul(optarg, &ptr, 10);
4979 case 0: case 'M': case 'm':
4986 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
4990 /* On 32-bit hosts, QEMU is limited by virtual address space */
4991 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
4992 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4995 if (value != (uint64_t)(ram_addr_t)value) {
4996 fprintf(stderr, "qemu: ram size too large\n");
5005 const CPULogItem *item;
5007 mask = cpu_str_to_log_mask(optarg);
5009 printf("Log items (comma separated):\n");
5010 for(item = cpu_log_items; item->mask != 0; item++) {
5011 printf("%-10s %s\n", item->name, item->help);
5019 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5021 case QEMU_OPTION_gdb:
5022 gdbstub_dev = optarg;
5027 case QEMU_OPTION_bios:
5030 case QEMU_OPTION_singlestep:
5038 keyboard_layout = optarg;
5041 case QEMU_OPTION_localtime:
5044 case QEMU_OPTION_vga:
5045 select_vgahw (optarg);
5047 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5053 w = strtol(p, (char **)&p, 10);
5056 fprintf(stderr, "qemu: invalid resolution or depth\n");
5062 h = strtol(p, (char **)&p, 10);
5067 depth = strtol(p, (char **)&p, 10);
5068 if (depth != 8 && depth != 15 && depth != 16 &&
5069 depth != 24 && depth != 32)
5071 } else if (*p == '\0') {
5072 depth = graphic_depth;
5079 graphic_depth = depth;
5083 case QEMU_OPTION_echr:
5086 term_escape_char = strtol(optarg, &r, 0);
5088 printf("Bad argument to echr\n");
5091 case QEMU_OPTION_monitor:
5092 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5093 fprintf(stderr, "qemu: too many monitor devices\n");
5096 monitor_devices[monitor_device_index] = optarg;
5097 monitor_device_index++;
5099 case QEMU_OPTION_chardev:
5100 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5102 fprintf(stderr, "parse error: %s\n", optarg);
5105 if (qemu_chr_open_opts(opts, NULL) == NULL) {
5109 case QEMU_OPTION_serial:
5110 if (serial_device_index >= MAX_SERIAL_PORTS) {
5111 fprintf(stderr, "qemu: too many serial ports\n");
5114 serial_devices[serial_device_index] = optarg;
5115 serial_device_index++;
5117 case QEMU_OPTION_watchdog:
5120 "qemu: only one watchdog option may be given\n");
5125 case QEMU_OPTION_watchdog_action:
5126 if (select_watchdog_action(optarg) == -1) {
5127 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5131 case QEMU_OPTION_virtiocon:
5132 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5133 fprintf(stderr, "qemu: too many virtio consoles\n");
5136 virtio_consoles[virtio_console_index] = optarg;
5137 virtio_console_index++;
5139 case QEMU_OPTION_parallel:
5140 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5141 fprintf(stderr, "qemu: too many parallel ports\n");
5144 parallel_devices[parallel_device_index] = optarg;
5145 parallel_device_index++;
5147 case QEMU_OPTION_loadvm:
5150 case QEMU_OPTION_full_screen:
5154 case QEMU_OPTION_no_frame:
5157 case QEMU_OPTION_alt_grab:
5160 case QEMU_OPTION_ctrl_grab:
5163 case QEMU_OPTION_no_quit:
5166 case QEMU_OPTION_sdl:
5167 display_type = DT_SDL;
5170 case QEMU_OPTION_pidfile:
5174 case QEMU_OPTION_win2k_hack:
5175 win2k_install_hack = 1;
5177 case QEMU_OPTION_rtc_td_hack:
5180 case QEMU_OPTION_acpitable:
5181 if(acpi_table_add(optarg) < 0) {
5182 fprintf(stderr, "Wrong acpi table provided\n");
5186 case QEMU_OPTION_smbios:
5187 if(smbios_entry_add(optarg) < 0) {
5188 fprintf(stderr, "Wrong smbios provided\n");
5194 case QEMU_OPTION_enable_kvm:
5198 case QEMU_OPTION_usb:
5201 case QEMU_OPTION_usbdevice:
5203 add_device_config(DEV_USB, optarg);
5205 case QEMU_OPTION_device:
5206 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
5210 case QEMU_OPTION_smp:
5213 fprintf(stderr, "Invalid number of CPUs\n");
5216 if (max_cpus < smp_cpus) {
5217 fprintf(stderr, "maxcpus must be equal to or greater than "
5221 if (max_cpus > 255) {
5222 fprintf(stderr, "Unsupported number of maxcpus\n");
5226 case QEMU_OPTION_vnc:
5227 display_type = DT_VNC;
5228 vnc_display = optarg;
5231 case QEMU_OPTION_no_acpi:
5234 case QEMU_OPTION_no_hpet:
5237 case QEMU_OPTION_balloon:
5238 if (balloon_parse(optarg) < 0) {
5239 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5244 case QEMU_OPTION_no_reboot:
5247 case QEMU_OPTION_no_shutdown:
5250 case QEMU_OPTION_show_cursor:
5253 case QEMU_OPTION_uuid:
5254 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5255 fprintf(stderr, "Fail to parse UUID string."
5256 " Wrong format.\n");
5261 case QEMU_OPTION_daemonize:
5265 case QEMU_OPTION_option_rom:
5266 if (nb_option_roms >= MAX_OPTION_ROMS) {
5267 fprintf(stderr, "Too many option ROMs\n");
5270 option_rom[nb_option_roms] = optarg;
5273 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5274 case QEMU_OPTION_semihosting:
5275 semihosting_enabled = 1;
5278 case QEMU_OPTION_name:
5279 qemu_name = qemu_strdup(optarg);
5281 char *p = strchr(qemu_name, ',');
5284 if (strncmp(p, "process=", 8)) {
5285 fprintf(stderr, "Unknown subargument %s to -name", p);
5293 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5294 case QEMU_OPTION_prom_env:
5295 if (nb_prom_envs >= MAX_PROM_ENVS) {
5296 fprintf(stderr, "Too many prom variables\n");
5299 prom_envs[nb_prom_envs] = optarg;
5304 case QEMU_OPTION_old_param:
5308 case QEMU_OPTION_clock:
5309 configure_alarms(optarg);
5311 case QEMU_OPTION_startdate:
5312 configure_rtc_date_offset(optarg, 1);
5314 case QEMU_OPTION_rtc:
5315 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5317 fprintf(stderr, "parse error: %s\n", optarg);
5320 configure_rtc(opts);
5322 case QEMU_OPTION_tb_size:
5323 tb_size = strtol(optarg, NULL, 0);
5327 case QEMU_OPTION_icount:
5329 if (strcmp(optarg, "auto") == 0) {
5330 icount_time_shift = -1;
5332 icount_time_shift = strtol(optarg, NULL, 0);
5335 case QEMU_OPTION_incoming:
5339 case QEMU_OPTION_chroot:
5340 chroot_dir = optarg;
5342 case QEMU_OPTION_runas:
5347 case QEMU_OPTION_xen_domid:
5348 xen_domid = atoi(optarg);
5350 case QEMU_OPTION_xen_create:
5351 xen_mode = XEN_CREATE;
5353 case QEMU_OPTION_xen_attach:
5354 xen_mode = XEN_ATTACH;
5361 /* If no data_dir is specified then try to find it relative to the
5364 data_dir = find_datadir(argv[0]);
5366 /* If all else fails use the install patch specified when building. */
5368 data_dir = CONFIG_QEMU_SHAREDIR;
5372 * Default to max_cpus = smp_cpus, in case the user doesn't
5373 * specify a max_cpus value.
5376 max_cpus = smp_cpus;
5378 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5379 if (smp_cpus > machine->max_cpus) {
5380 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5381 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5386 if (display_type == DT_NOGRAPHIC) {
5387 if (serial_device_index == 0)
5388 serial_devices[0] = "stdio";
5389 if (parallel_device_index == 0)
5390 parallel_devices[0] = "null";
5391 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5392 monitor_devices[0] = "stdio";
5400 if (pipe(fds) == -1)
5411 len = read(fds[0], &status, 1);
5412 if (len == -1 && (errno == EINTR))
5417 else if (status == 1) {
5418 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
5435 signal(SIGTSTP, SIG_IGN);
5436 signal(SIGTTOU, SIG_IGN);
5437 signal(SIGTTIN, SIG_IGN);
5440 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5443 write(fds[1], &status, 1);
5445 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
5450 if (kvm_enabled()) {
5453 ret = kvm_init(smp_cpus);
5455 fprintf(stderr, "failed to initialize KVM\n");
5460 if (qemu_init_main_loop()) {
5461 fprintf(stderr, "qemu_init_main_loop failed\n");
5464 linux_boot = (kernel_filename != NULL);
5466 if (!linux_boot && *kernel_cmdline != '\0') {
5467 fprintf(stderr, "-append only allowed with -kernel option\n");
5471 if (!linux_boot && initrd_filename != NULL) {
5472 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5477 /* Win32 doesn't support line-buffering and requires size >= 2 */
5478 setvbuf(stdout, NULL, _IOLBF, 0);
5481 if (init_timer_alarm() < 0) {
5482 fprintf(stderr, "could not initialize alarm timer\n");
5485 if (use_icount && icount_time_shift < 0) {
5487 /* 125MIPS seems a reasonable initial guess at the guest speed.
5488 It will be corrected fairly quickly anyway. */
5489 icount_time_shift = 3;
5490 init_icount_adjust();
5497 if (net_init_clients() < 0) {
5501 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5502 net_set_boot_mask(net_boot);
5504 /* init the bluetooth world */
5505 if (foreach_device_config(DEV_BT, bt_parse))
5508 /* init the memory */
5510 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5512 /* init the dynamic translator */
5513 cpu_exec_init_all(tb_size * 1024 * 1024);
5517 /* we always create the cdrom drive, even if no disk is there */
5518 drive_add(NULL, CDROM_ALIAS);
5520 /* we always create at least one floppy */
5521 drive_add(NULL, FD_ALIAS, 0);
5523 /* we always create one sd slot, even if no card is in it */
5524 drive_add(NULL, SD_ALIAS);
5526 /* open the virtual block devices */
5528 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5529 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5532 vmstate_register(0, &vmstate_timers ,&timers_state);
5533 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5535 /* Maintain compatibility with multiple stdio monitors */
5536 if (!strcmp(monitor_devices[0],"stdio")) {
5537 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5538 const char *devname = serial_devices[i];
5539 if (devname && !strcmp(devname,"mon:stdio")) {
5540 monitor_devices[0] = NULL;
5542 } else if (devname && !strcmp(devname,"stdio")) {
5543 monitor_devices[0] = NULL;
5544 serial_devices[i] = "mon:stdio";
5550 if (nb_numa_nodes > 0) {
5553 if (nb_numa_nodes > smp_cpus) {
5554 nb_numa_nodes = smp_cpus;
5557 /* If no memory size if given for any node, assume the default case
5558 * and distribute the available memory equally across all nodes
5560 for (i = 0; i < nb_numa_nodes; i++) {
5561 if (node_mem[i] != 0)
5564 if (i == nb_numa_nodes) {
5565 uint64_t usedmem = 0;
5567 /* On Linux, the each node's border has to be 8MB aligned,
5568 * the final node gets the rest.
5570 for (i = 0; i < nb_numa_nodes - 1; i++) {
5571 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5572 usedmem += node_mem[i];
5574 node_mem[i] = ram_size - usedmem;
5577 for (i = 0; i < nb_numa_nodes; i++) {
5578 if (node_cpumask[i] != 0)
5581 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5582 * must cope with this anyway, because there are BIOSes out there in
5583 * real machines which also use this scheme.
5585 if (i == nb_numa_nodes) {
5586 for (i = 0; i < smp_cpus; i++) {
5587 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5592 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5593 const char *devname = monitor_devices[i];
5594 if (devname && strcmp(devname, "none")) {
5597 snprintf(label, sizeof(label), "monitor");
5599 snprintf(label, sizeof(label), "monitor%d", i);
5601 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5602 if (!monitor_hds[i]) {
5603 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5610 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5611 const char *devname = serial_devices[i];
5612 if (devname && strcmp(devname, "none")) {
5614 snprintf(label, sizeof(label), "serial%d", i);
5615 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5616 if (!serial_hds[i]) {
5617 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
5618 devname, strerror(errno));
5624 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5625 const char *devname = parallel_devices[i];
5626 if (devname && strcmp(devname, "none")) {
5628 snprintf(label, sizeof(label), "parallel%d", i);
5629 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5630 if (!parallel_hds[i]) {
5631 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
5632 devname, strerror(errno));
5638 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5639 const char *devname = virtio_consoles[i];
5640 if (devname && strcmp(devname, "none")) {
5642 snprintf(label, sizeof(label), "virtcon%d", i);
5643 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5644 if (!virtcon_hds[i]) {
5645 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
5646 devname, strerror(errno));
5652 module_call_init(MODULE_INIT_DEVICE);
5655 i = select_watchdog(watchdog);
5657 exit (i == 1 ? 1 : 0);
5660 if (machine->compat_props) {
5661 qdev_prop_register_compat(machine->compat_props);
5663 machine->init(ram_size, boot_devices,
5664 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5668 /* must be after terminal init, SDL library changes signal handlers */
5672 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5673 for (i = 0; i < nb_numa_nodes; i++) {
5674 if (node_cpumask[i] & (1 << env->cpu_index)) {
5680 current_machine = machine;
5682 /* init USB devices */
5684 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5688 /* init generic devices */
5689 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5693 dumb_display_init();
5694 /* just use the first displaystate for the moment */
5697 if (display_type == DT_DEFAULT) {
5698 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5699 display_type = DT_SDL;
5701 display_type = DT_VNC;
5702 vnc_display = "localhost:0,to=99";
5708 switch (display_type) {
5711 #if defined(CONFIG_CURSES)
5713 curses_display_init(ds, full_screen);
5716 #if defined(CONFIG_SDL)
5718 sdl_display_init(ds, full_screen, no_frame);
5720 #elif defined(CONFIG_COCOA)
5722 cocoa_display_init(ds, full_screen);
5726 vnc_display_init(ds);
5727 if (vnc_display_open(ds, vnc_display) < 0)
5730 if (show_vnc_port) {
5731 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5739 dcl = ds->listeners;
5740 while (dcl != NULL) {
5741 if (dcl->dpy_refresh != NULL) {
5742 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5743 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5748 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5749 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5750 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5753 text_consoles_set_display(display_state);
5754 qemu_chr_initial_reset();
5756 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5757 if (monitor_devices[i] && monitor_hds[i]) {
5758 monitor_init(monitor_hds[i],
5759 MONITOR_USE_READLINE |
5760 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
5764 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5765 const char *devname = serial_devices[i];
5766 if (devname && strcmp(devname, "none")) {
5767 if (strstart(devname, "vc", 0))
5768 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
5772 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5773 const char *devname = parallel_devices[i];
5774 if (devname && strcmp(devname, "none")) {
5775 if (strstart(devname, "vc", 0))
5776 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
5780 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5781 const char *devname = virtio_consoles[i];
5782 if (virtcon_hds[i] && devname) {
5783 if (strstart(devname, "vc", 0))
5784 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
5788 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5789 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5794 qdev_machine_creation_done();
5799 if (load_vmstate(cur_mon, loadvm) < 0) {
5805 qemu_start_incoming_migration(incoming);
5806 } else if (autostart) {
5816 len = write(fds[1], &status, 1);
5817 if (len == -1 && (errno == EINTR))
5824 TFR(fd = open("/dev/null", O_RDWR));
5830 pwd = getpwnam(run_as);
5832 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5838 if (chroot(chroot_dir) < 0) {
5839 fprintf(stderr, "chroot failed\n");
5846 if (setgid(pwd->pw_gid) < 0) {
5847 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
5850 if (setuid(pwd->pw_uid) < 0) {
5851 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
5854 if (setuid(0) != -1) {
5855 fprintf(stderr, "Dropping privileges failed\n");