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(__FreeBSD_kernel__) || defined(__DragonFly__)
62 #include <linux/rtc.h>
63 #include <sys/prctl.h>
65 /* For the benefit of older linux systems which don't supply it,
66 we use a local copy of hpet.h. */
67 /* #include <linux/hpet.h> */
70 #include <linux/ppdev.h>
71 #include <linux/parport.h>
75 #include <sys/ethernet.h>
76 #include <sys/sockio.h>
77 #include <netinet/arp.h>
78 #include <netinet/in.h>
79 #include <netinet/in_systm.h>
80 #include <netinet/ip.h>
81 #include <netinet/ip_icmp.h> // must come after ip.h
82 #include <netinet/udp.h>
83 #include <netinet/tcp.h>
87 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
88 discussion about Solaris header problems */
89 extern int madvise(caddr_t
, size_t, int);
94 #if defined(__OpenBSD__)
98 #if defined(CONFIG_VDE)
99 #include <libvdeplug.h>
104 #include <mmsystem.h>
108 #if defined(__APPLE__) || defined(main)
110 int qemu_main(int argc
, char **argv
, char **envp
);
111 int main(int argc
, char **argv
)
113 return qemu_main(argc
, argv
, NULL
);
116 #define main qemu_main
118 #endif /* CONFIG_SDL */
122 #define main qemu_main
123 #endif /* CONFIG_COCOA */
126 #include "hw/boards.h"
128 #include "hw/pcmcia.h"
130 #include "hw/audiodev.h"
134 #include "hw/watchdog.h"
135 #include "hw/smbios.h"
138 #include "hw/loader.h"
141 #include "net/slirp.h"
146 #include "qemu-timer.h"
147 #include "qemu-char.h"
148 #include "cache-utils.h"
150 #include "block_int.h"
151 #include "block-migration.h"
153 #include "audio/audio.h"
154 #include "migration.h"
157 #include "qemu-option.h"
158 #include "qemu-config.h"
162 #include "exec-all.h"
164 #include "qemu_socket.h"
166 #include "slirp/libslirp.h"
168 #include "qemu-queue.h"
171 //#define DEBUG_SLIRP
173 #define DEFAULT_RAM_SIZE 128
175 /* Maximum number of monitor devices */
176 #define MAX_MONITOR_DEVICES 10
178 static const char *data_dir
;
179 const char *bios_name
= NULL
;
180 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
181 to store the VM snapshots */
182 struct drivelist drives
= QTAILQ_HEAD_INITIALIZER(drives
);
183 struct driveoptlist driveopts
= QTAILQ_HEAD_INITIALIZER(driveopts
);
184 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
185 static DisplayState
*display_state
;
186 DisplayType display_type
= DT_DEFAULT
;
187 const char* keyboard_layout
= NULL
;
190 NICInfo nd_table
[MAX_NICS
];
193 static int rtc_utc
= 1;
194 static int rtc_date_offset
= -1; /* -1 means no change */
195 QEMUClock
*rtc_clock
;
196 int vga_interface_type
= VGA_CIRRUS
;
198 int graphic_width
= 1024;
199 int graphic_height
= 768;
200 int graphic_depth
= 8;
202 int graphic_width
= 800;
203 int graphic_height
= 600;
204 int graphic_depth
= 15;
206 static int full_screen
= 0;
208 static int no_frame
= 0;
211 CharDriverState
*serial_hds
[MAX_SERIAL_PORTS
];
212 CharDriverState
*parallel_hds
[MAX_PARALLEL_PORTS
];
213 CharDriverState
*virtcon_hds
[MAX_VIRTIO_CONSOLES
];
215 int win2k_install_hack
= 0;
224 const char *vnc_display
;
225 int acpi_enabled
= 1;
231 int graphic_rotate
= 0;
232 uint8_t irq0override
= 1;
236 const char *watchdog
;
237 const char *option_rom
[MAX_OPTION_ROMS
];
239 int semihosting_enabled
= 0;
243 const char *qemu_name
;
246 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
247 unsigned int nb_prom_envs
= 0;
248 const char *prom_envs
[MAX_PROM_ENVS
];
253 uint64_t node_mem
[MAX_NODES
];
254 uint64_t node_cpumask
[MAX_NODES
];
256 static CPUState
*cur_cpu
;
257 static CPUState
*next_cpu
;
258 static int timer_alarm_pending
= 1;
259 /* Conversion factor from emulated instructions to virtual clock ticks. */
260 static int icount_time_shift
;
261 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
262 #define MAX_ICOUNT_SHIFT 10
263 /* Compensate for varying guest execution speed. */
264 static int64_t qemu_icount_bias
;
265 static QEMUTimer
*icount_rt_timer
;
266 static QEMUTimer
*icount_vm_timer
;
267 static QEMUTimer
*nographic_timer
;
269 uint8_t qemu_uuid
[16];
271 static QEMUBootSetHandler
*boot_set_handler
;
272 static void *boot_set_opaque
;
274 /***********************************************************/
275 /* x86 ISA bus support */
277 target_phys_addr_t isa_mem_base
= 0;
280 /***********************************************************/
281 void hw_error(const char *fmt
, ...)
287 fprintf(stderr
, "qemu: hardware error: ");
288 vfprintf(stderr
, fmt
, ap
);
289 fprintf(stderr
, "\n");
290 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
291 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
293 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
295 cpu_dump_state(env
, stderr
, fprintf
, 0);
302 static void set_proc_name(const char *s
)
304 #if defined(__linux__) && defined(PR_SET_NAME)
308 name
[sizeof(name
) - 1] = 0;
309 strncpy(name
, s
, sizeof(name
));
310 /* Could rewrite argv[0] too, but that's a bit more complicated.
311 This simple way is enough for `top'. */
312 prctl(PR_SET_NAME
, name
);
319 static QEMUBalloonEvent
*qemu_balloon_event
;
320 void *qemu_balloon_event_opaque
;
322 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
324 qemu_balloon_event
= func
;
325 qemu_balloon_event_opaque
= opaque
;
328 void qemu_balloon(ram_addr_t target
)
330 if (qemu_balloon_event
)
331 qemu_balloon_event(qemu_balloon_event_opaque
, target
);
334 ram_addr_t
qemu_balloon_status(void)
336 if (qemu_balloon_event
)
337 return qemu_balloon_event(qemu_balloon_event_opaque
, 0);
341 /***********************************************************/
344 static QEMUPutKBDEvent
*qemu_put_kbd_event
;
345 static void *qemu_put_kbd_event_opaque
;
346 static QEMUPutMouseEntry
*qemu_put_mouse_event_head
;
347 static QEMUPutMouseEntry
*qemu_put_mouse_event_current
;
349 void qemu_add_kbd_event_handler(QEMUPutKBDEvent
*func
, void *opaque
)
351 qemu_put_kbd_event_opaque
= opaque
;
352 qemu_put_kbd_event
= func
;
355 QEMUPutMouseEntry
*qemu_add_mouse_event_handler(QEMUPutMouseEvent
*func
,
356 void *opaque
, int absolute
,
359 QEMUPutMouseEntry
*s
, *cursor
;
361 s
= qemu_mallocz(sizeof(QEMUPutMouseEntry
));
363 s
->qemu_put_mouse_event
= func
;
364 s
->qemu_put_mouse_event_opaque
= opaque
;
365 s
->qemu_put_mouse_event_absolute
= absolute
;
366 s
->qemu_put_mouse_event_name
= qemu_strdup(name
);
369 if (!qemu_put_mouse_event_head
) {
370 qemu_put_mouse_event_head
= qemu_put_mouse_event_current
= s
;
374 cursor
= qemu_put_mouse_event_head
;
375 while (cursor
->next
!= NULL
)
376 cursor
= cursor
->next
;
379 qemu_put_mouse_event_current
= s
;
384 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry
*entry
)
386 QEMUPutMouseEntry
*prev
= NULL
, *cursor
;
388 if (!qemu_put_mouse_event_head
|| entry
== NULL
)
391 cursor
= qemu_put_mouse_event_head
;
392 while (cursor
!= NULL
&& cursor
!= entry
) {
394 cursor
= cursor
->next
;
397 if (cursor
== NULL
) // does not exist or list empty
399 else if (prev
== NULL
) { // entry is head
400 qemu_put_mouse_event_head
= cursor
->next
;
401 if (qemu_put_mouse_event_current
== entry
)
402 qemu_put_mouse_event_current
= cursor
->next
;
403 qemu_free(entry
->qemu_put_mouse_event_name
);
408 prev
->next
= entry
->next
;
410 if (qemu_put_mouse_event_current
== entry
)
411 qemu_put_mouse_event_current
= prev
;
413 qemu_free(entry
->qemu_put_mouse_event_name
);
417 void kbd_put_keycode(int keycode
)
419 if (qemu_put_kbd_event
) {
420 qemu_put_kbd_event(qemu_put_kbd_event_opaque
, keycode
);
424 void kbd_mouse_event(int dx
, int dy
, int dz
, int buttons_state
)
426 QEMUPutMouseEvent
*mouse_event
;
427 void *mouse_event_opaque
;
430 if (!qemu_put_mouse_event_current
) {
435 qemu_put_mouse_event_current
->qemu_put_mouse_event
;
437 qemu_put_mouse_event_current
->qemu_put_mouse_event_opaque
;
440 if (graphic_rotate
) {
441 if (qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
)
444 width
= graphic_width
- 1;
445 mouse_event(mouse_event_opaque
,
446 width
- dy
, dx
, dz
, buttons_state
);
448 mouse_event(mouse_event_opaque
,
449 dx
, dy
, dz
, buttons_state
);
453 int kbd_mouse_is_absolute(void)
455 if (!qemu_put_mouse_event_current
)
458 return qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
;
461 void do_info_mice(Monitor
*mon
)
463 QEMUPutMouseEntry
*cursor
;
466 if (!qemu_put_mouse_event_head
) {
467 monitor_printf(mon
, "No mouse devices connected\n");
471 monitor_printf(mon
, "Mouse devices available:\n");
472 cursor
= qemu_put_mouse_event_head
;
473 while (cursor
!= NULL
) {
474 monitor_printf(mon
, "%c Mouse #%d: %s\n",
475 (cursor
== qemu_put_mouse_event_current
? '*' : ' '),
476 index
, cursor
->qemu_put_mouse_event_name
);
478 cursor
= cursor
->next
;
482 void do_mouse_set(Monitor
*mon
, const QDict
*qdict
)
484 QEMUPutMouseEntry
*cursor
;
486 int index
= qdict_get_int(qdict
, "index");
488 if (!qemu_put_mouse_event_head
) {
489 monitor_printf(mon
, "No mouse devices connected\n");
493 cursor
= qemu_put_mouse_event_head
;
494 while (cursor
!= NULL
&& index
!= i
) {
496 cursor
= cursor
->next
;
500 qemu_put_mouse_event_current
= cursor
;
502 monitor_printf(mon
, "Mouse at given index not found\n");
505 /* compute with 96 bit intermediate result: (a*b)/c */
506 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
511 #ifdef HOST_WORDS_BIGENDIAN
521 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
522 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
525 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
529 /***********************************************************/
530 /* real time host monotonic timer */
532 static int64_t get_clock_realtime(void)
536 gettimeofday(&tv
, NULL
);
537 return tv
.tv_sec
* 1000000000LL + (tv
.tv_usec
* 1000);
542 static int64_t clock_freq
;
544 static void init_get_clock(void)
548 ret
= QueryPerformanceFrequency(&freq
);
550 fprintf(stderr
, "Could not calibrate ticks\n");
553 clock_freq
= freq
.QuadPart
;
556 static int64_t get_clock(void)
559 QueryPerformanceCounter(&ti
);
560 return muldiv64(ti
.QuadPart
, get_ticks_per_sec(), clock_freq
);
565 static int use_rt_clock
;
567 static void init_get_clock(void)
570 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
571 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
574 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0) {
581 static int64_t get_clock(void)
583 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
584 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
587 clock_gettime(CLOCK_MONOTONIC
, &ts
);
588 return ts
.tv_sec
* 1000000000LL + ts
.tv_nsec
;
592 /* XXX: using gettimeofday leads to problems if the date
593 changes, so it should be avoided. */
594 return get_clock_realtime();
599 /* Return the virtual CPU time, based on the instruction counter. */
600 static int64_t cpu_get_icount(void)
603 CPUState
*env
= cpu_single_env
;;
604 icount
= qemu_icount
;
607 fprintf(stderr
, "Bad clock read\n");
608 icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
610 return qemu_icount_bias
+ (icount
<< icount_time_shift
);
613 /***********************************************************/
614 /* guest cycle counter */
616 typedef struct TimersState
{
617 int64_t cpu_ticks_prev
;
618 int64_t cpu_ticks_offset
;
619 int64_t cpu_clock_offset
;
620 int32_t cpu_ticks_enabled
;
624 TimersState timers_state
;
626 /* return the host CPU cycle counter and handle stop/restart */
627 int64_t cpu_get_ticks(void)
630 return cpu_get_icount();
632 if (!timers_state
.cpu_ticks_enabled
) {
633 return timers_state
.cpu_ticks_offset
;
636 ticks
= cpu_get_real_ticks();
637 if (timers_state
.cpu_ticks_prev
> ticks
) {
638 /* Note: non increasing ticks may happen if the host uses
640 timers_state
.cpu_ticks_offset
+= timers_state
.cpu_ticks_prev
- ticks
;
642 timers_state
.cpu_ticks_prev
= ticks
;
643 return ticks
+ timers_state
.cpu_ticks_offset
;
647 /* return the host CPU monotonic timer and handle stop/restart */
648 static int64_t cpu_get_clock(void)
651 if (!timers_state
.cpu_ticks_enabled
) {
652 return timers_state
.cpu_clock_offset
;
655 return ti
+ timers_state
.cpu_clock_offset
;
659 /* enable cpu_get_ticks() */
660 void cpu_enable_ticks(void)
662 if (!timers_state
.cpu_ticks_enabled
) {
663 timers_state
.cpu_ticks_offset
-= cpu_get_real_ticks();
664 timers_state
.cpu_clock_offset
-= get_clock();
665 timers_state
.cpu_ticks_enabled
= 1;
669 /* disable cpu_get_ticks() : the clock is stopped. You must not call
670 cpu_get_ticks() after that. */
671 void cpu_disable_ticks(void)
673 if (timers_state
.cpu_ticks_enabled
) {
674 timers_state
.cpu_ticks_offset
= cpu_get_ticks();
675 timers_state
.cpu_clock_offset
= cpu_get_clock();
676 timers_state
.cpu_ticks_enabled
= 0;
680 /***********************************************************/
683 #define QEMU_CLOCK_REALTIME 0
684 #define QEMU_CLOCK_VIRTUAL 1
685 #define QEMU_CLOCK_HOST 2
689 /* XXX: add frequency */
697 struct QEMUTimer
*next
;
700 struct qemu_alarm_timer
{
704 int (*start
)(struct qemu_alarm_timer
*t
);
705 void (*stop
)(struct qemu_alarm_timer
*t
);
706 void (*rearm
)(struct qemu_alarm_timer
*t
);
710 #define ALARM_FLAG_DYNTICKS 0x1
711 #define ALARM_FLAG_EXPIRED 0x2
713 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
715 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
718 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
720 if (!alarm_has_dynticks(t
))
726 /* TODO: MIN_TIMER_REARM_US should be optimized */
727 #define MIN_TIMER_REARM_US 250
729 static struct qemu_alarm_timer
*alarm_timer
;
733 struct qemu_alarm_win32
{
736 } alarm_win32_data
= {0, -1};
738 static int win32_start_timer(struct qemu_alarm_timer
*t
);
739 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
740 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
744 static int unix_start_timer(struct qemu_alarm_timer
*t
);
745 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
749 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
750 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
751 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
753 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
754 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
756 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
757 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
759 #endif /* __linux__ */
763 /* Correlation between real and virtual time is always going to be
764 fairly approximate, so ignore small variation.
765 When the guest is idle real and virtual time will be aligned in
767 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
769 static void icount_adjust(void)
774 static int64_t last_delta
;
775 /* If the VM is not running, then do nothing. */
779 cur_time
= cpu_get_clock();
780 cur_icount
= qemu_get_clock(vm_clock
);
781 delta
= cur_icount
- cur_time
;
782 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
784 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
785 && icount_time_shift
> 0) {
786 /* The guest is getting too far ahead. Slow time down. */
790 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
791 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
792 /* The guest is getting too far behind. Speed time up. */
796 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
799 static void icount_adjust_rt(void * opaque
)
801 qemu_mod_timer(icount_rt_timer
,
802 qemu_get_clock(rt_clock
) + 1000);
806 static void icount_adjust_vm(void * opaque
)
808 qemu_mod_timer(icount_vm_timer
,
809 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
813 static void init_icount_adjust(void)
815 /* Have both realtime and virtual time triggers for speed adjustment.
816 The realtime trigger catches emulated time passing too slowly,
817 the virtual time trigger catches emulated time passing too fast.
818 Realtime triggers occur even when idle, so use them less frequently
820 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
821 qemu_mod_timer(icount_rt_timer
,
822 qemu_get_clock(rt_clock
) + 1000);
823 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
824 qemu_mod_timer(icount_vm_timer
,
825 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
828 static struct qemu_alarm_timer alarm_timers
[] = {
831 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
832 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
833 /* HPET - if available - is preferred */
834 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
835 /* ...otherwise try RTC */
836 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
838 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
840 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
841 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
842 {"win32", 0, win32_start_timer
,
843 win32_stop_timer
, NULL
, &alarm_win32_data
},
848 static void show_available_alarms(void)
852 printf("Available alarm timers, in order of precedence:\n");
853 for (i
= 0; alarm_timers
[i
].name
; i
++)
854 printf("%s\n", alarm_timers
[i
].name
);
857 static void configure_alarms(char const *opt
)
861 int count
= ARRAY_SIZE(alarm_timers
) - 1;
864 struct qemu_alarm_timer tmp
;
866 if (!strcmp(opt
, "?")) {
867 show_available_alarms();
871 arg
= qemu_strdup(opt
);
873 /* Reorder the array */
874 name
= strtok(arg
, ",");
876 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
877 if (!strcmp(alarm_timers
[i
].name
, name
))
882 fprintf(stderr
, "Unknown clock %s\n", name
);
891 tmp
= alarm_timers
[i
];
892 alarm_timers
[i
] = alarm_timers
[cur
];
893 alarm_timers
[cur
] = tmp
;
897 name
= strtok(NULL
, ",");
903 /* Disable remaining timers */
904 for (i
= cur
; i
< count
; i
++)
905 alarm_timers
[i
].name
= NULL
;
907 show_available_alarms();
912 #define QEMU_NUM_CLOCKS 3
916 QEMUClock
*host_clock
;
918 static QEMUTimer
*active_timers
[QEMU_NUM_CLOCKS
];
920 static QEMUClock
*qemu_new_clock(int type
)
923 clock
= qemu_mallocz(sizeof(QEMUClock
));
928 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
932 ts
= qemu_mallocz(sizeof(QEMUTimer
));
939 void qemu_free_timer(QEMUTimer
*ts
)
944 /* stop a timer, but do not dealloc it */
945 void qemu_del_timer(QEMUTimer
*ts
)
949 /* NOTE: this code must be signal safe because
950 qemu_timer_expired() can be called from a signal. */
951 pt
= &active_timers
[ts
->clock
->type
];
964 /* modify the current timer so that it will be fired when current_time
965 >= expire_time. The corresponding callback will be called. */
966 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
972 /* add the timer in the sorted list */
973 /* NOTE: this code must be signal safe because
974 qemu_timer_expired() can be called from a signal. */
975 pt
= &active_timers
[ts
->clock
->type
];
980 if (t
->expire_time
> expire_time
)
984 ts
->expire_time
= expire_time
;
988 /* Rearm if necessary */
989 if (pt
== &active_timers
[ts
->clock
->type
]) {
990 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
991 qemu_rearm_alarm_timer(alarm_timer
);
993 /* Interrupt execution to force deadline recalculation. */
999 int qemu_timer_pending(QEMUTimer
*ts
)
1002 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
1009 int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
1013 return (timer_head
->expire_time
<= current_time
);
1016 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
1022 if (!ts
|| ts
->expire_time
> current_time
)
1024 /* remove timer from the list before calling the callback */
1025 *ptimer_head
= ts
->next
;
1028 /* run the callback (the timer list can be modified) */
1033 int64_t qemu_get_clock(QEMUClock
*clock
)
1035 switch(clock
->type
) {
1036 case QEMU_CLOCK_REALTIME
:
1037 return get_clock() / 1000000;
1039 case QEMU_CLOCK_VIRTUAL
:
1041 return cpu_get_icount();
1043 return cpu_get_clock();
1045 case QEMU_CLOCK_HOST
:
1046 return get_clock_realtime();
1050 static void init_clocks(void)
1053 rt_clock
= qemu_new_clock(QEMU_CLOCK_REALTIME
);
1054 vm_clock
= qemu_new_clock(QEMU_CLOCK_VIRTUAL
);
1055 host_clock
= qemu_new_clock(QEMU_CLOCK_HOST
);
1057 rtc_clock
= host_clock
;
1061 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1063 uint64_t expire_time
;
1065 if (qemu_timer_pending(ts
)) {
1066 expire_time
= ts
->expire_time
;
1070 qemu_put_be64(f
, expire_time
);
1073 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1075 uint64_t expire_time
;
1077 expire_time
= qemu_get_be64(f
);
1078 if (expire_time
!= -1) {
1079 qemu_mod_timer(ts
, expire_time
);
1085 static const VMStateDescription vmstate_timers
= {
1088 .minimum_version_id
= 1,
1089 .minimum_version_id_old
= 1,
1090 .fields
= (VMStateField
[]) {
1091 VMSTATE_INT64(cpu_ticks_offset
, TimersState
),
1092 VMSTATE_INT64(dummy
, TimersState
),
1093 VMSTATE_INT64_V(cpu_clock_offset
, TimersState
, 2),
1094 VMSTATE_END_OF_LIST()
1098 static void qemu_event_increment(void);
1101 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
1102 DWORD_PTR dwUser
, DWORD_PTR dw1
,
1105 static void host_alarm_handler(int host_signum
)
1109 #define DISP_FREQ 1000
1111 static int64_t delta_min
= INT64_MAX
;
1112 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
1114 ti
= qemu_get_clock(vm_clock
);
1115 if (last_clock
!= 0) {
1116 delta
= ti
- last_clock
;
1117 if (delta
< delta_min
)
1119 if (delta
> delta_max
)
1122 if (++count
== DISP_FREQ
) {
1123 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1124 muldiv64(delta_min
, 1000000, get_ticks_per_sec()),
1125 muldiv64(delta_max
, 1000000, get_ticks_per_sec()),
1126 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, get_ticks_per_sec()),
1127 (double)get_ticks_per_sec() / ((double)delta_cum
/ DISP_FREQ
));
1129 delta_min
= INT64_MAX
;
1137 if (alarm_has_dynticks(alarm_timer
) ||
1139 qemu_timer_expired(active_timers
[QEMU_CLOCK_VIRTUAL
],
1140 qemu_get_clock(vm_clock
))) ||
1141 qemu_timer_expired(active_timers
[QEMU_CLOCK_REALTIME
],
1142 qemu_get_clock(rt_clock
)) ||
1143 qemu_timer_expired(active_timers
[QEMU_CLOCK_HOST
],
1144 qemu_get_clock(host_clock
))) {
1145 qemu_event_increment();
1146 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1148 #ifndef CONFIG_IOTHREAD
1150 /* stop the currently executing cpu because a timer occured */
1154 timer_alarm_pending
= 1;
1155 qemu_notify_event();
1159 static int64_t qemu_next_deadline(void)
1161 /* To avoid problems with overflow limit this to 2^32. */
1162 int64_t delta
= INT32_MAX
;
1164 if (active_timers
[QEMU_CLOCK_VIRTUAL
]) {
1165 delta
= active_timers
[QEMU_CLOCK_VIRTUAL
]->expire_time
-
1166 qemu_get_clock(vm_clock
);
1168 if (active_timers
[QEMU_CLOCK_HOST
]) {
1169 int64_t hdelta
= active_timers
[QEMU_CLOCK_HOST
]->expire_time
-
1170 qemu_get_clock(host_clock
);
1181 #if defined(__linux__)
1182 static uint64_t qemu_next_deadline_dyntick(void)
1190 delta
= (qemu_next_deadline() + 999) / 1000;
1192 if (active_timers
[QEMU_CLOCK_REALTIME
]) {
1193 rtdelta
= (active_timers
[QEMU_CLOCK_REALTIME
]->expire_time
-
1194 qemu_get_clock(rt_clock
))*1000;
1195 if (rtdelta
< delta
)
1199 if (delta
< MIN_TIMER_REARM_US
)
1200 delta
= MIN_TIMER_REARM_US
;
1208 /* Sets a specific flag */
1209 static int fcntl_setfl(int fd
, int flag
)
1213 flags
= fcntl(fd
, F_GETFL
);
1217 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1223 #if defined(__linux__)
1225 #define RTC_FREQ 1024
1227 static void enable_sigio_timer(int fd
)
1229 struct sigaction act
;
1232 sigfillset(&act
.sa_mask
);
1234 act
.sa_handler
= host_alarm_handler
;
1236 sigaction(SIGIO
, &act
, NULL
);
1237 fcntl_setfl(fd
, O_ASYNC
);
1238 fcntl(fd
, F_SETOWN
, getpid());
1241 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1243 struct hpet_info info
;
1246 fd
= open("/dev/hpet", O_RDONLY
);
1251 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1253 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1254 "error, but for better emulation accuracy type:\n"
1255 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1259 /* Check capabilities */
1260 r
= ioctl(fd
, HPET_INFO
, &info
);
1264 /* Enable periodic mode */
1265 r
= ioctl(fd
, HPET_EPI
, 0);
1266 if (info
.hi_flags
&& (r
< 0))
1269 /* Enable interrupt */
1270 r
= ioctl(fd
, HPET_IE_ON
, 0);
1274 enable_sigio_timer(fd
);
1275 t
->priv
= (void *)(long)fd
;
1283 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1285 int fd
= (long)t
->priv
;
1290 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1293 unsigned long current_rtc_freq
= 0;
1295 TFR(rtc_fd
= open("/dev/rtc", O_RDONLY
));
1298 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1299 if (current_rtc_freq
!= RTC_FREQ
&&
1300 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1301 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1302 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1303 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1306 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1312 enable_sigio_timer(rtc_fd
);
1314 t
->priv
= (void *)(long)rtc_fd
;
1319 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1321 int rtc_fd
= (long)t
->priv
;
1326 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1330 struct sigaction act
;
1332 sigfillset(&act
.sa_mask
);
1334 act
.sa_handler
= host_alarm_handler
;
1336 sigaction(SIGALRM
, &act
, NULL
);
1339 * Initialize ev struct to 0 to avoid valgrind complaining
1340 * about uninitialized data in timer_create call
1342 memset(&ev
, 0, sizeof(ev
));
1343 ev
.sigev_value
.sival_int
= 0;
1344 ev
.sigev_notify
= SIGEV_SIGNAL
;
1345 ev
.sigev_signo
= SIGALRM
;
1347 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1348 perror("timer_create");
1350 /* disable dynticks */
1351 fprintf(stderr
, "Dynamic Ticks disabled\n");
1356 t
->priv
= (void *)(long)host_timer
;
1361 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1363 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1365 timer_delete(host_timer
);
1368 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1370 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1371 struct itimerspec timeout
;
1372 int64_t nearest_delta_us
= INT64_MAX
;
1375 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1376 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1377 !active_timers
[QEMU_CLOCK_HOST
])
1380 nearest_delta_us
= qemu_next_deadline_dyntick();
1382 /* check whether a timer is already running */
1383 if (timer_gettime(host_timer
, &timeout
)) {
1385 fprintf(stderr
, "Internal timer error: aborting\n");
1388 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1389 if (current_us
&& current_us
<= nearest_delta_us
)
1392 timeout
.it_interval
.tv_sec
= 0;
1393 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1394 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1395 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1396 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1398 fprintf(stderr
, "Internal timer error: aborting\n");
1403 #endif /* defined(__linux__) */
1405 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1407 struct sigaction act
;
1408 struct itimerval itv
;
1412 sigfillset(&act
.sa_mask
);
1414 act
.sa_handler
= host_alarm_handler
;
1416 sigaction(SIGALRM
, &act
, NULL
);
1418 itv
.it_interval
.tv_sec
= 0;
1419 /* for i386 kernel 2.6 to get 1 ms */
1420 itv
.it_interval
.tv_usec
= 999;
1421 itv
.it_value
.tv_sec
= 0;
1422 itv
.it_value
.tv_usec
= 10 * 1000;
1424 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1431 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1433 struct itimerval itv
;
1435 memset(&itv
, 0, sizeof(itv
));
1436 setitimer(ITIMER_REAL
, &itv
, NULL
);
1439 #endif /* !defined(_WIN32) */
1444 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1447 struct qemu_alarm_win32
*data
= t
->priv
;
1450 memset(&tc
, 0, sizeof(tc
));
1451 timeGetDevCaps(&tc
, sizeof(tc
));
1453 if (data
->period
< tc
.wPeriodMin
)
1454 data
->period
= tc
.wPeriodMin
;
1456 timeBeginPeriod(data
->period
);
1458 flags
= TIME_CALLBACK_FUNCTION
;
1459 if (alarm_has_dynticks(t
))
1460 flags
|= TIME_ONESHOT
;
1462 flags
|= TIME_PERIODIC
;
1464 data
->timerId
= timeSetEvent(1, // interval (ms)
1465 data
->period
, // resolution
1466 host_alarm_handler
, // function
1467 (DWORD
)t
, // parameter
1470 if (!data
->timerId
) {
1471 fprintf(stderr
, "Failed to initialize win32 alarm timer: %ld\n",
1473 timeEndPeriod(data
->period
);
1480 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1482 struct qemu_alarm_win32
*data
= t
->priv
;
1484 timeKillEvent(data
->timerId
);
1485 timeEndPeriod(data
->period
);
1488 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1490 struct qemu_alarm_win32
*data
= t
->priv
;
1492 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1493 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1494 !active_timers
[QEMU_CLOCK_HOST
])
1497 timeKillEvent(data
->timerId
);
1499 data
->timerId
= timeSetEvent(1,
1503 TIME_ONESHOT
| TIME_PERIODIC
);
1505 if (!data
->timerId
) {
1506 fprintf(stderr
, "Failed to re-arm win32 alarm timer %ld\n",
1509 timeEndPeriod(data
->period
);
1516 static int init_timer_alarm(void)
1518 struct qemu_alarm_timer
*t
= NULL
;
1521 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1522 t
= &alarm_timers
[i
];
1542 static void quit_timers(void)
1544 alarm_timer
->stop(alarm_timer
);
1548 /***********************************************************/
1549 /* host time/date access */
1550 void qemu_get_timedate(struct tm
*tm
, int offset
)
1557 if (rtc_date_offset
== -1) {
1561 ret
= localtime(&ti
);
1563 ti
-= rtc_date_offset
;
1567 memcpy(tm
, ret
, sizeof(struct tm
));
1570 int qemu_timedate_diff(struct tm
*tm
)
1574 if (rtc_date_offset
== -1)
1576 seconds
= mktimegm(tm
);
1578 seconds
= mktime(tm
);
1580 seconds
= mktimegm(tm
) + rtc_date_offset
;
1582 return seconds
- time(NULL
);
1585 static void configure_rtc_date_offset(const char *startdate
, int legacy
)
1587 time_t rtc_start_date
;
1590 if (!strcmp(startdate
, "now") && legacy
) {
1591 rtc_date_offset
= -1;
1593 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d",
1601 } else if (sscanf(startdate
, "%d-%d-%d",
1604 &tm
.tm_mday
) == 3) {
1613 rtc_start_date
= mktimegm(&tm
);
1614 if (rtc_start_date
== -1) {
1616 fprintf(stderr
, "Invalid date format. Valid formats are:\n"
1617 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1620 rtc_date_offset
= time(NULL
) - rtc_start_date
;
1624 static void configure_rtc(QemuOpts
*opts
)
1628 value
= qemu_opt_get(opts
, "base");
1630 if (!strcmp(value
, "utc")) {
1632 } else if (!strcmp(value
, "localtime")) {
1635 configure_rtc_date_offset(value
, 0);
1638 value
= qemu_opt_get(opts
, "clock");
1640 if (!strcmp(value
, "host")) {
1641 rtc_clock
= host_clock
;
1642 } else if (!strcmp(value
, "vm")) {
1643 rtc_clock
= vm_clock
;
1645 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1649 #ifdef CONFIG_TARGET_I386
1650 value
= qemu_opt_get(opts
, "driftfix");
1652 if (!strcmp(buf
, "slew")) {
1654 } else if (!strcmp(buf
, "none")) {
1657 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1665 static void socket_cleanup(void)
1670 static int socket_init(void)
1675 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
1677 err
= WSAGetLastError();
1678 fprintf(stderr
, "WSAStartup: %d\n", err
);
1681 atexit(socket_cleanup
);
1686 /***********************************************************/
1687 /* Bluetooth support */
1690 static struct HCIInfo
*hci_table
[MAX_NICS
];
1692 static struct bt_vlan_s
{
1693 struct bt_scatternet_s net
;
1695 struct bt_vlan_s
*next
;
1698 /* find or alloc a new bluetooth "VLAN" */
1699 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1701 struct bt_vlan_s
**pvlan
, *vlan
;
1702 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1706 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1708 pvlan
= &first_bt_vlan
;
1709 while (*pvlan
!= NULL
)
1710 pvlan
= &(*pvlan
)->next
;
1715 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1719 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1724 static struct HCIInfo null_hci
= {
1725 .cmd_send
= null_hci_send
,
1726 .sco_send
= null_hci_send
,
1727 .acl_send
= null_hci_send
,
1728 .bdaddr_set
= null_hci_addr_set
,
1731 struct HCIInfo
*qemu_next_hci(void)
1733 if (cur_hci
== nb_hcis
)
1736 return hci_table
[cur_hci
++];
1739 static struct HCIInfo
*hci_init(const char *str
)
1742 struct bt_scatternet_s
*vlan
= 0;
1744 if (!strcmp(str
, "null"))
1747 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1749 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1750 else if (!strncmp(str
, "hci", 3)) {
1753 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1754 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1759 vlan
= qemu_find_bt_vlan(0);
1761 return bt_new_hci(vlan
);
1764 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1769 static int bt_hci_parse(const char *str
)
1771 struct HCIInfo
*hci
;
1774 if (nb_hcis
>= MAX_NICS
) {
1775 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1779 hci
= hci_init(str
);
1788 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1789 hci
->bdaddr_set(hci
, bdaddr
.b
);
1791 hci_table
[nb_hcis
++] = hci
;
1796 static void bt_vhci_add(int vlan_id
)
1798 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1801 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1802 "an empty scatternet %i\n", vlan_id
);
1804 bt_vhci_init(bt_new_hci(vlan
));
1807 static struct bt_device_s
*bt_device_add(const char *opt
)
1809 struct bt_scatternet_s
*vlan
;
1811 char *endp
= strstr(opt
, ",vlan=");
1812 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1815 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1818 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1820 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1825 vlan
= qemu_find_bt_vlan(vlan_id
);
1828 fprintf(stderr
, "qemu: warning: adding a slave device to "
1829 "an empty scatternet %i\n", vlan_id
);
1831 if (!strcmp(devname
, "keyboard"))
1832 return bt_keyboard_init(vlan
);
1834 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1838 static int bt_parse(const char *opt
)
1840 const char *endp
, *p
;
1843 if (strstart(opt
, "hci", &endp
)) {
1844 if (!*endp
|| *endp
== ',') {
1846 if (!strstart(endp
, ",vlan=", 0))
1849 return bt_hci_parse(opt
);
1851 } else if (strstart(opt
, "vhci", &endp
)) {
1852 if (!*endp
|| *endp
== ',') {
1854 if (strstart(endp
, ",vlan=", &p
)) {
1855 vlan
= strtol(p
, (char **) &endp
, 0);
1857 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1861 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1870 } else if (strstart(opt
, "device:", &endp
))
1871 return !bt_device_add(endp
);
1873 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1877 /***********************************************************/
1878 /* QEMU Block devices */
1880 #define HD_ALIAS "index=%d,media=disk"
1881 #define CDROM_ALIAS "index=2,media=cdrom"
1882 #define FD_ALIAS "index=%d,if=floppy"
1883 #define PFLASH_ALIAS "if=pflash"
1884 #define MTD_ALIAS "if=mtd"
1885 #define SD_ALIAS "index=0,if=sd"
1887 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
1894 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
1897 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, NULL
);
1899 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
1900 __FUNCTION__
, optstr
);
1904 qemu_opt_set(opts
, "file", file
);
1908 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
1912 /* seek interface, bus and unit */
1914 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1915 if (dinfo
->type
== type
&&
1916 dinfo
->bus
== bus
&&
1917 dinfo
->unit
== unit
)
1924 DriveInfo
*drive_get_by_id(const char *id
)
1928 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1929 if (strcmp(id
, dinfo
->id
))
1936 int drive_get_max_bus(BlockInterfaceType type
)
1942 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1943 if(dinfo
->type
== type
&&
1944 dinfo
->bus
> max_bus
)
1945 max_bus
= dinfo
->bus
;
1950 const char *drive_get_serial(BlockDriverState
*bdrv
)
1954 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1955 if (dinfo
->bdrv
== bdrv
)
1956 return dinfo
->serial
;
1962 BlockInterfaceErrorAction
drive_get_onerror(BlockDriverState
*bdrv
)
1966 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1967 if (dinfo
->bdrv
== bdrv
)
1968 return dinfo
->onerror
;
1971 return BLOCK_ERR_STOP_ENOSPC
;
1974 static void bdrv_format_print(void *opaque
, const char *name
)
1976 fprintf(stderr
, " %s", name
);
1979 void drive_uninit(DriveInfo
*dinfo
)
1981 qemu_opts_del(dinfo
->opts
);
1982 bdrv_delete(dinfo
->bdrv
);
1983 QTAILQ_REMOVE(&drives
, dinfo
, next
);
1987 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
1991 const char *file
= NULL
;
1994 const char *mediastr
= "";
1995 BlockInterfaceType type
;
1996 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
1997 int bus_id
, unit_id
;
1998 int cyls
, heads
, secs
, translation
;
1999 BlockDriver
*drv
= NULL
;
2000 QEMUMachine
*machine
= opaque
;
2006 int bdrv_flags
, onerror
;
2007 const char *devaddr
;
2013 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2016 if (machine
&& machine
->use_scsi
) {
2018 max_devs
= MAX_SCSI_DEVS
;
2019 pstrcpy(devname
, sizeof(devname
), "scsi");
2022 max_devs
= MAX_IDE_DEVS
;
2023 pstrcpy(devname
, sizeof(devname
), "ide");
2027 /* extract parameters */
2028 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
2029 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
2030 index
= qemu_opt_get_number(opts
, "index", -1);
2032 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
2033 heads
= qemu_opt_get_number(opts
, "heads", 0);
2034 secs
= qemu_opt_get_number(opts
, "secs", 0);
2036 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
2037 ro
= qemu_opt_get_bool(opts
, "readonly", 0);
2039 file
= qemu_opt_get(opts
, "file");
2040 serial
= qemu_opt_get(opts
, "serial");
2042 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
2043 pstrcpy(devname
, sizeof(devname
), buf
);
2044 if (!strcmp(buf
, "ide")) {
2046 max_devs
= MAX_IDE_DEVS
;
2047 } else if (!strcmp(buf
, "scsi")) {
2049 max_devs
= MAX_SCSI_DEVS
;
2050 } else if (!strcmp(buf
, "floppy")) {
2053 } else if (!strcmp(buf
, "pflash")) {
2056 } else if (!strcmp(buf
, "mtd")) {
2059 } else if (!strcmp(buf
, "sd")) {
2062 } else if (!strcmp(buf
, "virtio")) {
2065 } else if (!strcmp(buf
, "xen")) {
2068 } else if (!strcmp(buf
, "none")) {
2072 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
2077 if (cyls
|| heads
|| secs
) {
2078 if (cyls
< 1 || (type
== IF_IDE
&& cyls
> 16383)) {
2079 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
2082 if (heads
< 1 || (type
== IF_IDE
&& heads
> 16)) {
2083 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
2086 if (secs
< 1 || (type
== IF_IDE
&& secs
> 63)) {
2087 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
2092 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
2095 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2099 if (!strcmp(buf
, "none"))
2100 translation
= BIOS_ATA_TRANSLATION_NONE
;
2101 else if (!strcmp(buf
, "lba"))
2102 translation
= BIOS_ATA_TRANSLATION_LBA
;
2103 else if (!strcmp(buf
, "auto"))
2104 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2106 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
2111 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
2112 if (!strcmp(buf
, "disk")) {
2114 } else if (!strcmp(buf
, "cdrom")) {
2115 if (cyls
|| secs
|| heads
) {
2117 "qemu: '%s' invalid physical CHS format\n", buf
);
2120 media
= MEDIA_CDROM
;
2122 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
2127 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
2128 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2130 else if (!strcmp(buf
, "writethrough"))
2132 else if (!strcmp(buf
, "writeback"))
2135 fprintf(stderr
, "qemu: invalid cache option\n");
2140 #ifdef CONFIG_LINUX_AIO
2141 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
2142 if (!strcmp(buf
, "threads"))
2144 else if (!strcmp(buf
, "native"))
2147 fprintf(stderr
, "qemu: invalid aio option\n");
2153 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
2154 if (strcmp(buf
, "?") == 0) {
2155 fprintf(stderr
, "qemu: Supported formats:");
2156 bdrv_iterate_format(bdrv_format_print
, NULL
);
2157 fprintf(stderr
, "\n");
2160 drv
= bdrv_find_whitelisted_format(buf
);
2162 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2167 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2168 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
2169 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2170 fprintf(stderr
, "werror is no supported by this format\n");
2173 if (!strcmp(buf
, "ignore"))
2174 onerror
= BLOCK_ERR_IGNORE
;
2175 else if (!strcmp(buf
, "enospc"))
2176 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2177 else if (!strcmp(buf
, "stop"))
2178 onerror
= BLOCK_ERR_STOP_ANY
;
2179 else if (!strcmp(buf
, "report"))
2180 onerror
= BLOCK_ERR_REPORT
;
2182 fprintf(stderr
, "qemu: '%s' invalid write error action\n", buf
);
2187 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
2188 if (type
!= IF_VIRTIO
) {
2189 fprintf(stderr
, "addr is not supported\n");
2194 /* compute bus and unit according index */
2197 if (bus_id
!= 0 || unit_id
!= -1) {
2199 "qemu: index cannot be used with bus and unit\n");
2207 unit_id
= index
% max_devs
;
2208 bus_id
= index
/ max_devs
;
2212 /* if user doesn't specify a unit_id,
2213 * try to find the first free
2216 if (unit_id
== -1) {
2218 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2220 if (max_devs
&& unit_id
>= max_devs
) {
2221 unit_id
-= max_devs
;
2229 if (max_devs
&& unit_id
>= max_devs
) {
2230 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
2231 unit_id
, max_devs
- 1);
2236 * ignore multiple definitions
2239 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2246 dinfo
= qemu_mallocz(sizeof(*dinfo
));
2247 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
2248 dinfo
->id
= qemu_strdup(buf
);
2250 /* no id supplied -> create one */
2251 dinfo
->id
= qemu_mallocz(32);
2252 if (type
== IF_IDE
|| type
== IF_SCSI
)
2253 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2255 snprintf(dinfo
->id
, 32, "%s%i%s%i",
2256 devname
, bus_id
, mediastr
, unit_id
);
2258 snprintf(dinfo
->id
, 32, "%s%s%i",
2259 devname
, mediastr
, unit_id
);
2261 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
2262 dinfo
->devaddr
= devaddr
;
2264 dinfo
->bus
= bus_id
;
2265 dinfo
->unit
= unit_id
;
2266 dinfo
->onerror
= onerror
;
2269 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
2270 QTAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
2280 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
2281 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
2285 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
2290 /* FIXME: This isn't really a floppy, but it's a reasonable
2293 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
2299 /* add virtio block device */
2300 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
2301 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
2302 qemu_opt_set(opts
, "drive", dinfo
->id
);
2304 qemu_opt_set(opts
, "addr", devaddr
);
2315 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2316 cache
= 2; /* always use write-back with snapshot */
2318 if (cache
== 0) /* no caching */
2319 bdrv_flags
|= BDRV_O_NOCACHE
;
2320 else if (cache
== 2) /* write-back */
2321 bdrv_flags
|= BDRV_O_CACHE_WB
;
2324 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
2326 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
2330 if (type
== IF_IDE
) {
2331 fprintf(stderr
, "qemu: readonly flag not supported for drive with ide interface\n");
2334 (void)bdrv_set_read_only(dinfo
->bdrv
, 1);
2337 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
2338 fprintf(stderr
, "qemu: could not open disk image %s: %s\n",
2339 file
, strerror(errno
));
2343 if (bdrv_key_required(dinfo
->bdrv
))
2349 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
2351 QEMUMachine
*machine
= opaque
;
2352 int fatal_error
= 0;
2354 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
2361 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
2363 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
2364 qemu_opt_set(opts
, "snapshot", "on");
2369 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
2371 boot_set_handler
= func
;
2372 boot_set_opaque
= opaque
;
2375 int qemu_boot_set(const char *boot_devices
)
2377 if (!boot_set_handler
) {
2380 return boot_set_handler(boot_set_opaque
, boot_devices
);
2383 static int parse_bootdevices(char *devices
)
2385 /* We just do some generic consistency checks */
2389 for (p
= devices
; *p
!= '\0'; p
++) {
2390 /* Allowed boot devices are:
2391 * a-b: floppy disk drives
2392 * c-f: IDE disk drives
2393 * g-m: machine implementation dependant drives
2394 * n-p: network devices
2395 * It's up to each machine implementation to check if the given boot
2396 * devices match the actual hardware implementation and firmware
2399 if (*p
< 'a' || *p
> 'p') {
2400 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2403 if (bitmap
& (1 << (*p
- 'a'))) {
2404 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2407 bitmap
|= 1 << (*p
- 'a');
2412 static void restore_boot_devices(void *opaque
)
2414 char *standard_boot_devices
= opaque
;
2416 qemu_boot_set(standard_boot_devices
);
2418 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
2419 qemu_free(standard_boot_devices
);
2422 static void numa_add(const char *optarg
)
2426 unsigned long long value
, endvalue
;
2429 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2430 if (!strcmp(option
, "node")) {
2431 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2432 nodenr
= nb_numa_nodes
;
2434 nodenr
= strtoull(option
, NULL
, 10);
2437 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2438 node_mem
[nodenr
] = 0;
2440 value
= strtoull(option
, &endptr
, 0);
2442 case 0: case 'M': case 'm':
2449 node_mem
[nodenr
] = value
;
2451 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2452 node_cpumask
[nodenr
] = 0;
2454 value
= strtoull(option
, &endptr
, 10);
2457 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2459 if (*endptr
== '-') {
2460 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2461 if (endvalue
>= 63) {
2464 "only 63 CPUs in NUMA mode supported.\n");
2466 value
= (1 << (endvalue
+ 1)) - (1 << value
);
2471 node_cpumask
[nodenr
] = value
;
2478 static void smp_parse(const char *optarg
)
2480 int smp
, sockets
= 0, threads
= 0, cores
= 0;
2484 smp
= strtoul(optarg
, &endptr
, 10);
2485 if (endptr
!= optarg
) {
2486 if (*endptr
== ',') {
2490 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
2491 sockets
= strtoull(option
, NULL
, 10);
2492 if (get_param_value(option
, 128, "cores", endptr
) != 0)
2493 cores
= strtoull(option
, NULL
, 10);
2494 if (get_param_value(option
, 128, "threads", endptr
) != 0)
2495 threads
= strtoull(option
, NULL
, 10);
2496 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
2497 max_cpus
= strtoull(option
, NULL
, 10);
2499 /* compute missing values, prefer sockets over cores over threads */
2500 if (smp
== 0 || sockets
== 0) {
2501 sockets
= sockets
> 0 ? sockets
: 1;
2502 cores
= cores
> 0 ? cores
: 1;
2503 threads
= threads
> 0 ? threads
: 1;
2505 smp
= cores
* threads
* sockets
;
2507 sockets
= smp
/ (cores
* threads
);
2511 threads
= threads
> 0 ? threads
: 1;
2512 cores
= smp
/ (sockets
* threads
);
2515 sockets
= smp
/ (cores
* threads
);
2517 threads
= smp
/ (cores
* sockets
);
2522 smp_cores
= cores
> 0 ? cores
: 1;
2523 smp_threads
= threads
> 0 ? threads
: 1;
2525 max_cpus
= smp_cpus
;
2528 /***********************************************************/
2531 static int usb_device_add(const char *devname
, int is_hotplug
)
2534 USBDevice
*dev
= NULL
;
2539 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2540 dev
= usbdevice_create(devname
);
2544 /* the other ones */
2545 if (strstart(devname
, "host:", &p
)) {
2546 dev
= usb_host_device_open(p
);
2547 } else if (strstart(devname
, "net:", &p
)) {
2551 opts
= qemu_opts_parse(&qemu_net_opts
, p
, NULL
);
2556 qemu_opt_set(opts
, "type", "nic");
2557 qemu_opt_set(opts
, "model", "usb");
2559 idx
= net_client_init(NULL
, opts
, 0);
2564 dev
= usb_net_init(&nd_table
[idx
]);
2565 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2566 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2567 bt_new_hci(qemu_find_bt_vlan(0)));
2578 static int usb_device_del(const char *devname
)
2583 if (strstart(devname
, "host:", &p
))
2584 return usb_host_device_close(p
);
2589 p
= strchr(devname
, '.');
2592 bus_num
= strtoul(devname
, NULL
, 0);
2593 addr
= strtoul(p
+ 1, NULL
, 0);
2595 return usb_device_delete_addr(bus_num
, addr
);
2598 static int usb_parse(const char *cmdline
)
2600 return usb_device_add(cmdline
, 0);
2603 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
2605 usb_device_add(qdict_get_str(qdict
, "devname"), 1);
2608 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
2610 usb_device_del(qdict_get_str(qdict
, "devname"));
2613 /***********************************************************/
2614 /* PCMCIA/Cardbus */
2616 static struct pcmcia_socket_entry_s
{
2617 PCMCIASocket
*socket
;
2618 struct pcmcia_socket_entry_s
*next
;
2619 } *pcmcia_sockets
= 0;
2621 void pcmcia_socket_register(PCMCIASocket
*socket
)
2623 struct pcmcia_socket_entry_s
*entry
;
2625 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2626 entry
->socket
= socket
;
2627 entry
->next
= pcmcia_sockets
;
2628 pcmcia_sockets
= entry
;
2631 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2633 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2635 ptr
= &pcmcia_sockets
;
2636 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2637 if (entry
->socket
== socket
) {
2643 void pcmcia_info(Monitor
*mon
)
2645 struct pcmcia_socket_entry_s
*iter
;
2647 if (!pcmcia_sockets
)
2648 monitor_printf(mon
, "No PCMCIA sockets\n");
2650 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2651 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2652 iter
->socket
->attached
? iter
->socket
->card_string
:
2656 /***********************************************************/
2657 /* register display */
2659 struct DisplayAllocator default_allocator
= {
2660 defaultallocator_create_displaysurface
,
2661 defaultallocator_resize_displaysurface
,
2662 defaultallocator_free_displaysurface
2665 void register_displaystate(DisplayState
*ds
)
2675 DisplayState
*get_displaystate(void)
2677 return display_state
;
2680 DisplayAllocator
*register_displayallocator(DisplayState
*ds
, DisplayAllocator
*da
)
2682 if(ds
->allocator
== &default_allocator
) ds
->allocator
= da
;
2683 return ds
->allocator
;
2688 static void dumb_display_init(void)
2690 DisplayState
*ds
= qemu_mallocz(sizeof(DisplayState
));
2691 ds
->allocator
= &default_allocator
;
2692 ds
->surface
= qemu_create_displaysurface(ds
, 640, 480);
2693 register_displaystate(ds
);
2696 /***********************************************************/
2699 typedef struct IOHandlerRecord
{
2701 IOCanRWHandler
*fd_read_poll
;
2703 IOHandler
*fd_write
;
2706 /* temporary data */
2708 struct IOHandlerRecord
*next
;
2711 static IOHandlerRecord
*first_io_handler
;
2713 /* XXX: fd_read_poll should be suppressed, but an API change is
2714 necessary in the character devices to suppress fd_can_read(). */
2715 int qemu_set_fd_handler2(int fd
,
2716 IOCanRWHandler
*fd_read_poll
,
2718 IOHandler
*fd_write
,
2721 IOHandlerRecord
**pioh
, *ioh
;
2723 if (!fd_read
&& !fd_write
) {
2724 pioh
= &first_io_handler
;
2729 if (ioh
->fd
== fd
) {
2736 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2740 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2741 ioh
->next
= first_io_handler
;
2742 first_io_handler
= ioh
;
2745 ioh
->fd_read_poll
= fd_read_poll
;
2746 ioh
->fd_read
= fd_read
;
2747 ioh
->fd_write
= fd_write
;
2748 ioh
->opaque
= opaque
;
2754 int qemu_set_fd_handler(int fd
,
2756 IOHandler
*fd_write
,
2759 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2763 /***********************************************************/
2764 /* Polling handling */
2766 typedef struct PollingEntry
{
2769 struct PollingEntry
*next
;
2772 static PollingEntry
*first_polling_entry
;
2774 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2776 PollingEntry
**ppe
, *pe
;
2777 pe
= qemu_mallocz(sizeof(PollingEntry
));
2779 pe
->opaque
= opaque
;
2780 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2785 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2787 PollingEntry
**ppe
, *pe
;
2788 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2790 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2798 /***********************************************************/
2799 /* Wait objects support */
2800 typedef struct WaitObjects
{
2802 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2803 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2804 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2807 static WaitObjects wait_objects
= {0};
2809 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2811 WaitObjects
*w
= &wait_objects
;
2813 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2815 w
->events
[w
->num
] = handle
;
2816 w
->func
[w
->num
] = func
;
2817 w
->opaque
[w
->num
] = opaque
;
2822 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2825 WaitObjects
*w
= &wait_objects
;
2828 for (i
= 0; i
< w
->num
; i
++) {
2829 if (w
->events
[i
] == handle
)
2832 w
->events
[i
] = w
->events
[i
+ 1];
2833 w
->func
[i
] = w
->func
[i
+ 1];
2834 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2842 /***********************************************************/
2843 /* ram save/restore */
2845 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2846 #define RAM_SAVE_FLAG_COMPRESS 0x02
2847 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2848 #define RAM_SAVE_FLAG_PAGE 0x08
2849 #define RAM_SAVE_FLAG_EOS 0x10
2851 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2853 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2854 uint32_t *array
= (uint32_t *)page
;
2857 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2858 if (array
[i
] != val
)
2865 static int ram_save_block(QEMUFile
*f
)
2867 static ram_addr_t current_addr
= 0;
2868 ram_addr_t saved_addr
= current_addr
;
2869 ram_addr_t addr
= 0;
2872 while (addr
< last_ram_offset
) {
2873 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
2876 cpu_physical_memory_reset_dirty(current_addr
,
2877 current_addr
+ TARGET_PAGE_SIZE
,
2878 MIGRATION_DIRTY_FLAG
);
2880 p
= qemu_get_ram_ptr(current_addr
);
2882 if (is_dup_page(p
, *p
)) {
2883 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
2884 qemu_put_byte(f
, *p
);
2886 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
2887 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
2893 addr
+= TARGET_PAGE_SIZE
;
2894 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
2900 static uint64_t bytes_transferred
= 0;
2902 static ram_addr_t
ram_save_remaining(void)
2905 ram_addr_t count
= 0;
2907 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2908 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2915 uint64_t ram_bytes_remaining(void)
2917 return ram_save_remaining() * TARGET_PAGE_SIZE
;
2920 uint64_t ram_bytes_transferred(void)
2922 return bytes_transferred
;
2925 uint64_t ram_bytes_total(void)
2927 return last_ram_offset
;
2930 static int ram_save_live(QEMUFile
*f
, int stage
, void *opaque
)
2933 uint64_t bytes_transferred_last
;
2935 uint64_t expected_time
= 0;
2938 cpu_physical_memory_set_dirty_tracking(0);
2942 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
2943 qemu_file_set_error(f
);
2948 /* Make sure all dirty bits are set */
2949 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2950 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2951 cpu_physical_memory_set_dirty(addr
);
2954 /* Enable dirty memory tracking */
2955 cpu_physical_memory_set_dirty_tracking(1);
2957 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
2960 bytes_transferred_last
= bytes_transferred
;
2961 bwidth
= get_clock();
2963 while (!qemu_file_rate_limit(f
)) {
2966 ret
= ram_save_block(f
);
2967 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
2968 if (ret
== 0) /* no more blocks */
2972 bwidth
= get_clock() - bwidth
;
2973 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
2975 /* if we haven't transferred anything this round, force expected_time to a
2976 * a very high value, but without crashing */
2980 /* try transferring iterative blocks of memory */
2982 /* flush all remaining blocks regardless of rate limiting */
2983 while (ram_save_block(f
) != 0) {
2984 bytes_transferred
+= TARGET_PAGE_SIZE
;
2986 cpu_physical_memory_set_dirty_tracking(0);
2989 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
2991 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
2993 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
2996 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
3001 if (version_id
!= 3)
3005 addr
= qemu_get_be64(f
);
3007 flags
= addr
& ~TARGET_PAGE_MASK
;
3008 addr
&= TARGET_PAGE_MASK
;
3010 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
3011 if (addr
!= last_ram_offset
)
3015 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
3016 uint8_t ch
= qemu_get_byte(f
);
3017 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
3020 (!kvm_enabled() || kvm_has_sync_mmu())) {
3021 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
3024 } else if (flags
& RAM_SAVE_FLAG_PAGE
) {
3025 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
3027 if (qemu_file_has_error(f
)) {
3030 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
3035 void qemu_service_io(void)
3037 qemu_notify_event();
3040 /***********************************************************/
3041 /* machine registration */
3043 static QEMUMachine
*first_machine
= NULL
;
3044 QEMUMachine
*current_machine
= NULL
;
3046 int qemu_register_machine(QEMUMachine
*m
)
3049 pm
= &first_machine
;
3057 static QEMUMachine
*find_machine(const char *name
)
3061 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3062 if (!strcmp(m
->name
, name
))
3064 if (m
->alias
&& !strcmp(m
->alias
, name
))
3070 static QEMUMachine
*find_default_machine(void)
3074 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3075 if (m
->is_default
) {
3082 /***********************************************************/
3083 /* main execution loop */
3085 static void gui_update(void *opaque
)
3087 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3088 DisplayState
*ds
= opaque
;
3089 DisplayChangeListener
*dcl
= ds
->listeners
;
3093 while (dcl
!= NULL
) {
3094 if (dcl
->gui_timer_interval
&&
3095 dcl
->gui_timer_interval
< interval
)
3096 interval
= dcl
->gui_timer_interval
;
3099 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3102 static void nographic_update(void *opaque
)
3104 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3106 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3109 struct vm_change_state_entry
{
3110 VMChangeStateHandler
*cb
;
3112 QLIST_ENTRY (vm_change_state_entry
) entries
;
3115 static QLIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3117 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3120 VMChangeStateEntry
*e
;
3122 e
= qemu_mallocz(sizeof (*e
));
3126 QLIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3130 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3132 QLIST_REMOVE (e
, entries
);
3136 static void vm_state_notify(int running
, int reason
)
3138 VMChangeStateEntry
*e
;
3140 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3141 e
->cb(e
->opaque
, running
, reason
);
3145 static void resume_all_vcpus(void);
3146 static void pause_all_vcpus(void);
3153 vm_state_notify(1, 0);
3154 qemu_rearm_alarm_timer(alarm_timer
);
3159 /* reset/shutdown handler */
3161 typedef struct QEMUResetEntry
{
3162 QTAILQ_ENTRY(QEMUResetEntry
) entry
;
3163 QEMUResetHandler
*func
;
3167 static QTAILQ_HEAD(reset_handlers
, QEMUResetEntry
) reset_handlers
=
3168 QTAILQ_HEAD_INITIALIZER(reset_handlers
);
3169 static int reset_requested
;
3170 static int shutdown_requested
;
3171 static int powerdown_requested
;
3172 static int debug_requested
;
3173 static int vmstop_requested
;
3175 int qemu_shutdown_requested(void)
3177 int r
= shutdown_requested
;
3178 shutdown_requested
= 0;
3182 int qemu_reset_requested(void)
3184 int r
= reset_requested
;
3185 reset_requested
= 0;
3189 int qemu_powerdown_requested(void)
3191 int r
= powerdown_requested
;
3192 powerdown_requested
= 0;
3196 static int qemu_debug_requested(void)
3198 int r
= debug_requested
;
3199 debug_requested
= 0;
3203 static int qemu_vmstop_requested(void)
3205 int r
= vmstop_requested
;
3206 vmstop_requested
= 0;
3210 static void do_vm_stop(int reason
)
3213 cpu_disable_ticks();
3216 vm_state_notify(0, reason
);
3220 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3222 QEMUResetEntry
*re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3225 re
->opaque
= opaque
;
3226 QTAILQ_INSERT_TAIL(&reset_handlers
, re
, entry
);
3229 void qemu_unregister_reset(QEMUResetHandler
*func
, void *opaque
)
3233 QTAILQ_FOREACH(re
, &reset_handlers
, entry
) {
3234 if (re
->func
== func
&& re
->opaque
== opaque
) {
3235 QTAILQ_REMOVE(&reset_handlers
, re
, entry
);
3242 void qemu_system_reset(void)
3244 QEMUResetEntry
*re
, *nre
;
3246 /* reset all devices */
3247 QTAILQ_FOREACH_SAFE(re
, &reset_handlers
, entry
, nre
) {
3248 re
->func(re
->opaque
);
3252 void qemu_system_reset_request(void)
3255 shutdown_requested
= 1;
3257 reset_requested
= 1;
3259 qemu_notify_event();
3262 void qemu_system_shutdown_request(void)
3264 shutdown_requested
= 1;
3265 qemu_notify_event();
3268 void qemu_system_powerdown_request(void)
3270 powerdown_requested
= 1;
3271 qemu_notify_event();
3274 #ifdef CONFIG_IOTHREAD
3275 static void qemu_system_vmstop_request(int reason
)
3277 vmstop_requested
= reason
;
3278 qemu_notify_event();
3283 static int io_thread_fd
= -1;
3285 static void qemu_event_increment(void)
3287 static const char byte
= 0;
3289 if (io_thread_fd
== -1)
3292 write(io_thread_fd
, &byte
, sizeof(byte
));
3295 static void qemu_event_read(void *opaque
)
3297 int fd
= (unsigned long)opaque
;
3300 /* Drain the notify pipe */
3303 len
= read(fd
, buffer
, sizeof(buffer
));
3304 } while ((len
== -1 && errno
== EINTR
) || len
> 0);
3307 static int qemu_event_init(void)
3316 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3320 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3324 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3325 (void *)(unsigned long)fds
[0]);
3327 io_thread_fd
= fds
[1];
3336 HANDLE qemu_event_handle
;
3338 static void dummy_event_handler(void *opaque
)
3342 static int qemu_event_init(void)
3344 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3345 if (!qemu_event_handle
) {
3346 fprintf(stderr
, "Failed CreateEvent: %ld\n", GetLastError());
3349 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3353 static void qemu_event_increment(void)
3355 if (!SetEvent(qemu_event_handle
)) {
3356 fprintf(stderr
, "qemu_event_increment: SetEvent failed: %ld\n",
3363 static int cpu_can_run(CPUState
*env
)
3372 #ifndef CONFIG_IOTHREAD
3373 static int qemu_init_main_loop(void)
3375 return qemu_event_init();
3378 void qemu_init_vcpu(void *_env
)
3380 CPUState
*env
= _env
;
3384 env
->nr_cores
= smp_cores
;
3385 env
->nr_threads
= smp_threads
;
3389 int qemu_cpu_self(void *env
)
3394 static void resume_all_vcpus(void)
3398 static void pause_all_vcpus(void)
3402 void qemu_cpu_kick(void *env
)
3407 void qemu_notify_event(void)
3409 CPUState
*env
= cpu_single_env
;
3416 void qemu_mutex_lock_iothread(void) {}
3417 void qemu_mutex_unlock_iothread(void) {}
3419 void vm_stop(int reason
)
3424 #else /* CONFIG_IOTHREAD */
3426 #include "qemu-thread.h"
3428 QemuMutex qemu_global_mutex
;
3429 static QemuMutex qemu_fair_mutex
;
3431 static QemuThread io_thread
;
3433 static QemuThread
*tcg_cpu_thread
;
3434 static QemuCond
*tcg_halt_cond
;
3436 static int qemu_system_ready
;
3438 static QemuCond qemu_cpu_cond
;
3440 static QemuCond qemu_system_cond
;
3441 static QemuCond qemu_pause_cond
;
3443 static void block_io_signals(void);
3444 static void unblock_io_signals(void);
3445 static int tcg_has_work(void);
3447 static int qemu_init_main_loop(void)
3451 ret
= qemu_event_init();
3455 qemu_cond_init(&qemu_pause_cond
);
3456 qemu_mutex_init(&qemu_fair_mutex
);
3457 qemu_mutex_init(&qemu_global_mutex
);
3458 qemu_mutex_lock(&qemu_global_mutex
);
3460 unblock_io_signals();
3461 qemu_thread_self(&io_thread
);
3466 static void qemu_wait_io_event(CPUState
*env
)
3468 while (!tcg_has_work())
3469 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3471 qemu_mutex_unlock(&qemu_global_mutex
);
3474 * Users of qemu_global_mutex can be starved, having no chance
3475 * to acquire it since this path will get to it first.
3476 * So use another lock to provide fairness.
3478 qemu_mutex_lock(&qemu_fair_mutex
);
3479 qemu_mutex_unlock(&qemu_fair_mutex
);
3481 qemu_mutex_lock(&qemu_global_mutex
);
3485 qemu_cond_signal(&qemu_pause_cond
);
3489 static int qemu_cpu_exec(CPUState
*env
);
3491 static void *kvm_cpu_thread_fn(void *arg
)
3493 CPUState
*env
= arg
;
3496 qemu_thread_self(env
->thread
);
3500 /* signal CPU creation */
3501 qemu_mutex_lock(&qemu_global_mutex
);
3503 qemu_cond_signal(&qemu_cpu_cond
);
3505 /* and wait for machine initialization */
3506 while (!qemu_system_ready
)
3507 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3510 if (cpu_can_run(env
))
3512 qemu_wait_io_event(env
);
3518 static void tcg_cpu_exec(void);
3520 static void *tcg_cpu_thread_fn(void *arg
)
3522 CPUState
*env
= arg
;
3525 qemu_thread_self(env
->thread
);
3527 /* signal CPU creation */
3528 qemu_mutex_lock(&qemu_global_mutex
);
3529 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3531 qemu_cond_signal(&qemu_cpu_cond
);
3533 /* and wait for machine initialization */
3534 while (!qemu_system_ready
)
3535 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3539 qemu_wait_io_event(cur_cpu
);
3545 void qemu_cpu_kick(void *_env
)
3547 CPUState
*env
= _env
;
3548 qemu_cond_broadcast(env
->halt_cond
);
3550 qemu_thread_signal(env
->thread
, SIGUSR1
);
3553 int qemu_cpu_self(void *_env
)
3555 CPUState
*env
= _env
;
3558 qemu_thread_self(&this);
3560 return qemu_thread_equal(&this, env
->thread
);
3563 static void cpu_signal(int sig
)
3566 cpu_exit(cpu_single_env
);
3569 static void block_io_signals(void)
3572 struct sigaction sigact
;
3575 sigaddset(&set
, SIGUSR2
);
3576 sigaddset(&set
, SIGIO
);
3577 sigaddset(&set
, SIGALRM
);
3578 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3581 sigaddset(&set
, SIGUSR1
);
3582 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3584 memset(&sigact
, 0, sizeof(sigact
));
3585 sigact
.sa_handler
= cpu_signal
;
3586 sigaction(SIGUSR1
, &sigact
, NULL
);
3589 static void unblock_io_signals(void)
3594 sigaddset(&set
, SIGUSR2
);
3595 sigaddset(&set
, SIGIO
);
3596 sigaddset(&set
, SIGALRM
);
3597 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3600 sigaddset(&set
, SIGUSR1
);
3601 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3604 static void qemu_signal_lock(unsigned int msecs
)
3606 qemu_mutex_lock(&qemu_fair_mutex
);
3608 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3609 qemu_thread_signal(tcg_cpu_thread
, SIGUSR1
);
3610 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3613 qemu_mutex_unlock(&qemu_fair_mutex
);
3616 void qemu_mutex_lock_iothread(void)
3618 if (kvm_enabled()) {
3619 qemu_mutex_lock(&qemu_fair_mutex
);
3620 qemu_mutex_lock(&qemu_global_mutex
);
3621 qemu_mutex_unlock(&qemu_fair_mutex
);
3623 qemu_signal_lock(100);
3626 void qemu_mutex_unlock_iothread(void)
3628 qemu_mutex_unlock(&qemu_global_mutex
);
3631 static int all_vcpus_paused(void)
3633 CPUState
*penv
= first_cpu
;
3638 penv
= (CPUState
*)penv
->next_cpu
;
3644 static void pause_all_vcpus(void)
3646 CPUState
*penv
= first_cpu
;
3650 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3651 qemu_cpu_kick(penv
);
3652 penv
= (CPUState
*)penv
->next_cpu
;
3655 while (!all_vcpus_paused()) {
3656 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3659 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3660 penv
= (CPUState
*)penv
->next_cpu
;
3665 static void resume_all_vcpus(void)
3667 CPUState
*penv
= first_cpu
;
3672 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3673 qemu_cpu_kick(penv
);
3674 penv
= (CPUState
*)penv
->next_cpu
;
3678 static void tcg_init_vcpu(void *_env
)
3680 CPUState
*env
= _env
;
3681 /* share a single thread for all cpus with TCG */
3682 if (!tcg_cpu_thread
) {
3683 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3684 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3685 qemu_cond_init(env
->halt_cond
);
3686 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3687 while (env
->created
== 0)
3688 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3689 tcg_cpu_thread
= env
->thread
;
3690 tcg_halt_cond
= env
->halt_cond
;
3692 env
->thread
= tcg_cpu_thread
;
3693 env
->halt_cond
= tcg_halt_cond
;
3697 static void kvm_start_vcpu(CPUState
*env
)
3699 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3700 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3701 qemu_cond_init(env
->halt_cond
);
3702 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3703 while (env
->created
== 0)
3704 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3707 void qemu_init_vcpu(void *_env
)
3709 CPUState
*env
= _env
;
3712 kvm_start_vcpu(env
);
3715 env
->nr_cores
= smp_cores
;
3716 env
->nr_threads
= smp_threads
;
3719 void qemu_notify_event(void)
3721 qemu_event_increment();
3724 void vm_stop(int reason
)
3727 qemu_thread_self(&me
);
3729 if (!qemu_thread_equal(&me
, &io_thread
)) {
3730 qemu_system_vmstop_request(reason
);
3732 * FIXME: should not return to device code in case
3733 * vm_stop() has been requested.
3735 if (cpu_single_env
) {
3736 cpu_exit(cpu_single_env
);
3737 cpu_single_env
->stop
= 1;
3748 static void host_main_loop_wait(int *timeout
)
3754 /* XXX: need to suppress polling by better using win32 events */
3756 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
3757 ret
|= pe
->func(pe
->opaque
);
3761 WaitObjects
*w
= &wait_objects
;
3763 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
3764 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
3765 if (w
->func
[ret
- WAIT_OBJECT_0
])
3766 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
3768 /* Check for additional signaled events */
3769 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
3771 /* Check if event is signaled */
3772 ret2
= WaitForSingleObject(w
->events
[i
], 0);
3773 if(ret2
== WAIT_OBJECT_0
) {
3775 w
->func
[i
](w
->opaque
[i
]);
3776 } else if (ret2
== WAIT_TIMEOUT
) {
3778 err
= GetLastError();
3779 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
3782 } else if (ret
== WAIT_TIMEOUT
) {
3784 err
= GetLastError();
3785 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
3792 static void host_main_loop_wait(int *timeout
)
3797 void main_loop_wait(int timeout
)
3799 IOHandlerRecord
*ioh
;
3800 fd_set rfds
, wfds
, xfds
;
3804 qemu_bh_update_timeout(&timeout
);
3806 host_main_loop_wait(&timeout
);
3808 /* poll any events */
3809 /* XXX: separate device handlers from system ones */
3814 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3818 (!ioh
->fd_read_poll
||
3819 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
3820 FD_SET(ioh
->fd
, &rfds
);
3824 if (ioh
->fd_write
) {
3825 FD_SET(ioh
->fd
, &wfds
);
3831 tv
.tv_sec
= timeout
/ 1000;
3832 tv
.tv_usec
= (timeout
% 1000) * 1000;
3834 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
3836 qemu_mutex_unlock_iothread();
3837 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
3838 qemu_mutex_lock_iothread();
3840 IOHandlerRecord
**pioh
;
3842 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3843 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
3844 ioh
->fd_read(ioh
->opaque
);
3846 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
3847 ioh
->fd_write(ioh
->opaque
);
3851 /* remove deleted IO handlers */
3852 pioh
= &first_io_handler
;
3863 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
3865 /* rearm timer, if not periodic */
3866 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
3867 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
3868 qemu_rearm_alarm_timer(alarm_timer
);
3871 /* vm time timers */
3873 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
3874 qemu_run_timers(&active_timers
[QEMU_CLOCK_VIRTUAL
],
3875 qemu_get_clock(vm_clock
));
3878 /* real time timers */
3879 qemu_run_timers(&active_timers
[QEMU_CLOCK_REALTIME
],
3880 qemu_get_clock(rt_clock
));
3882 qemu_run_timers(&active_timers
[QEMU_CLOCK_HOST
],
3883 qemu_get_clock(host_clock
));
3885 /* Check bottom-halves last in case any of the earlier events triggered
3891 static int qemu_cpu_exec(CPUState
*env
)
3894 #ifdef CONFIG_PROFILER
3898 #ifdef CONFIG_PROFILER
3899 ti
= profile_getclock();
3904 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
3905 env
->icount_decr
.u16
.low
= 0;
3906 env
->icount_extra
= 0;
3907 count
= qemu_next_deadline();
3908 count
= (count
+ (1 << icount_time_shift
) - 1)
3909 >> icount_time_shift
;
3910 qemu_icount
+= count
;
3911 decr
= (count
> 0xffff) ? 0xffff : count
;
3913 env
->icount_decr
.u16
.low
= decr
;
3914 env
->icount_extra
= count
;
3916 ret
= cpu_exec(env
);
3917 #ifdef CONFIG_PROFILER
3918 qemu_time
+= profile_getclock() - ti
;
3921 /* Fold pending instructions back into the
3922 instruction counter, and clear the interrupt flag. */
3923 qemu_icount
-= (env
->icount_decr
.u16
.low
3924 + env
->icount_extra
);
3925 env
->icount_decr
.u32
= 0;
3926 env
->icount_extra
= 0;
3931 static void tcg_cpu_exec(void)
3935 if (next_cpu
== NULL
)
3936 next_cpu
= first_cpu
;
3937 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
3938 CPUState
*env
= cur_cpu
= next_cpu
;
3942 if (timer_alarm_pending
) {
3943 timer_alarm_pending
= 0;
3946 if (cpu_can_run(env
))
3947 ret
= qemu_cpu_exec(env
);
3948 if (ret
== EXCP_DEBUG
) {
3949 gdb_set_stop_cpu(env
);
3950 debug_requested
= 1;
3956 static int cpu_has_work(CPUState
*env
)
3964 if (qemu_cpu_has_work(env
))
3969 static int tcg_has_work(void)
3973 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3974 if (cpu_has_work(env
))
3979 static int qemu_calculate_timeout(void)
3981 #ifndef CONFIG_IOTHREAD
3986 else if (tcg_has_work())
3988 else if (!use_icount
)
3991 /* XXX: use timeout computed from timers */
3994 /* Advance virtual time to the next event. */
3995 if (use_icount
== 1) {
3996 /* When not using an adaptive execution frequency
3997 we tend to get badly out of sync with real time,
3998 so just delay for a reasonable amount of time. */
4001 delta
= cpu_get_icount() - cpu_get_clock();
4004 /* If virtual time is ahead of real time then just
4006 timeout
= (delta
/ 1000000) + 1;
4008 /* Wait for either IO to occur or the next
4010 add
= qemu_next_deadline();
4011 /* We advance the timer before checking for IO.
4012 Limit the amount we advance so that early IO
4013 activity won't get the guest too far ahead. */
4017 add
= (add
+ (1 << icount_time_shift
) - 1)
4018 >> icount_time_shift
;
4020 timeout
= delta
/ 1000000;
4027 #else /* CONFIG_IOTHREAD */
4032 static int vm_can_run(void)
4034 if (powerdown_requested
)
4036 if (reset_requested
)
4038 if (shutdown_requested
)
4040 if (debug_requested
)
4045 qemu_irq qemu_system_powerdown
;
4047 static void main_loop(void)
4051 #ifdef CONFIG_IOTHREAD
4052 qemu_system_ready
= 1;
4053 qemu_cond_broadcast(&qemu_system_cond
);
4058 #ifdef CONFIG_PROFILER
4061 #ifndef CONFIG_IOTHREAD
4064 #ifdef CONFIG_PROFILER
4065 ti
= profile_getclock();
4067 main_loop_wait(qemu_calculate_timeout());
4068 #ifdef CONFIG_PROFILER
4069 dev_time
+= profile_getclock() - ti
;
4071 } while (vm_can_run());
4073 if (qemu_debug_requested()) {
4074 monitor_protocol_event(EVENT_DEBUG
, NULL
);
4075 vm_stop(EXCP_DEBUG
);
4077 if (qemu_shutdown_requested()) {
4078 monitor_protocol_event(EVENT_SHUTDOWN
, NULL
);
4085 if (qemu_reset_requested()) {
4086 monitor_protocol_event(EVENT_RESET
, NULL
);
4088 qemu_system_reset();
4091 if (qemu_powerdown_requested()) {
4092 monitor_protocol_event(EVENT_POWERDOWN
, NULL
);
4093 qemu_irq_raise(qemu_system_powerdown
);
4095 if ((r
= qemu_vmstop_requested())) {
4096 monitor_protocol_event(EVENT_STOP
, NULL
);
4103 static void version(void)
4105 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4108 static void help(int exitcode
)
4111 printf("usage: %s [options] [disk_image]\n"
4113 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4115 #define DEF(option, opt_arg, opt_enum, opt_help) \
4117 #define DEFHEADING(text) stringify(text) "\n"
4118 #include "qemu-options.h"
4123 "During emulation, the following keys are useful:\n"
4124 "ctrl-alt-f toggle full screen\n"
4125 "ctrl-alt-n switch to virtual console 'n'\n"
4126 "ctrl-alt toggle mouse and keyboard grab\n"
4128 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4133 DEFAULT_NETWORK_SCRIPT
,
4134 DEFAULT_NETWORK_DOWN_SCRIPT
,
4136 DEFAULT_GDBSTUB_PORT
,
4141 #define HAS_ARG 0x0001
4144 #define DEF(option, opt_arg, opt_enum, opt_help) \
4146 #define DEFHEADING(text)
4147 #include "qemu-options.h"
4153 typedef struct QEMUOption
{
4159 static const QEMUOption qemu_options
[] = {
4160 { "h", 0, QEMU_OPTION_h
},
4161 #define DEF(option, opt_arg, opt_enum, opt_help) \
4162 { option, opt_arg, opt_enum },
4163 #define DEFHEADING(text)
4164 #include "qemu-options.h"
4172 struct soundhw soundhw
[] = {
4173 #ifdef HAS_AUDIO_CHOICE
4174 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4180 { .init_isa
= pcspk_audio_init
}
4187 "Creative Sound Blaster 16",
4190 { .init_isa
= SB16_init
}
4194 #ifdef CONFIG_CS4231A
4200 { .init_isa
= cs4231a_init
}
4208 "Yamaha YMF262 (OPL3)",
4210 "Yamaha YM3812 (OPL2)",
4214 { .init_isa
= Adlib_init
}
4221 "Gravis Ultrasound GF1",
4224 { .init_isa
= GUS_init
}
4231 "Intel 82801AA AC97 Audio",
4234 { .init_pci
= ac97_init
}
4238 #ifdef CONFIG_ES1370
4241 "ENSONIQ AudioPCI ES1370",
4244 { .init_pci
= es1370_init
}
4248 #endif /* HAS_AUDIO_CHOICE */
4250 { NULL
, NULL
, 0, 0, { NULL
} }
4253 static void select_soundhw (const char *optarg
)
4257 if (*optarg
== '?') {
4260 printf ("Valid sound card names (comma separated):\n");
4261 for (c
= soundhw
; c
->name
; ++c
) {
4262 printf ("%-11s %s\n", c
->name
, c
->descr
);
4264 printf ("\n-soundhw all will enable all of the above\n");
4265 exit (*optarg
!= '?');
4273 if (!strcmp (optarg
, "all")) {
4274 for (c
= soundhw
; c
->name
; ++c
) {
4282 e
= strchr (p
, ',');
4283 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4285 for (c
= soundhw
; c
->name
; ++c
) {
4286 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
4295 "Unknown sound card name (too big to show)\n");
4298 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4303 p
+= l
+ (e
!= NULL
);
4307 goto show_valid_cards
;
4312 static void select_vgahw (const char *p
)
4316 vga_interface_type
= VGA_NONE
;
4317 if (strstart(p
, "std", &opts
)) {
4318 vga_interface_type
= VGA_STD
;
4319 } else if (strstart(p
, "cirrus", &opts
)) {
4320 vga_interface_type
= VGA_CIRRUS
;
4321 } else if (strstart(p
, "vmware", &opts
)) {
4322 vga_interface_type
= VGA_VMWARE
;
4323 } else if (strstart(p
, "xenfb", &opts
)) {
4324 vga_interface_type
= VGA_XENFB
;
4325 } else if (!strstart(p
, "none", &opts
)) {
4327 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4331 const char *nextopt
;
4333 if (strstart(opts
, ",retrace=", &nextopt
)) {
4335 if (strstart(opts
, "dumb", &nextopt
))
4336 vga_retrace_method
= VGA_RETRACE_DUMB
;
4337 else if (strstart(opts
, "precise", &nextopt
))
4338 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4339 else goto invalid_vga
;
4340 } else goto invalid_vga
;
4346 static int balloon_parse(const char *arg
)
4350 if (strcmp(arg
, "none") == 0) {
4354 if (!strncmp(arg
, "virtio", 6)) {
4355 if (arg
[6] == ',') {
4356 /* have params -> parse them */
4357 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, NULL
);
4361 /* create empty opts */
4362 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4364 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
4373 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4375 exit(STATUS_CONTROL_C_EXIT
);
4380 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4384 if(strlen(str
) != 36)
4387 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4388 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4389 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4395 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4403 static void termsig_handler(int signal
)
4405 qemu_system_shutdown_request();
4408 static void sigchld_handler(int signal
)
4410 waitpid(-1, NULL
, WNOHANG
);
4413 static void sighandler_setup(void)
4415 struct sigaction act
;
4417 memset(&act
, 0, sizeof(act
));
4418 act
.sa_handler
= termsig_handler
;
4419 sigaction(SIGINT
, &act
, NULL
);
4420 sigaction(SIGHUP
, &act
, NULL
);
4421 sigaction(SIGTERM
, &act
, NULL
);
4423 act
.sa_handler
= sigchld_handler
;
4424 act
.sa_flags
= SA_NOCLDSTOP
;
4425 sigaction(SIGCHLD
, &act
, NULL
);
4431 /* Look for support files in the same directory as the executable. */
4432 static char *find_datadir(const char *argv0
)
4438 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4445 while (p
!= buf
&& *p
!= '\\')
4448 if (access(buf
, R_OK
) == 0) {
4449 return qemu_strdup(buf
);
4455 /* Find a likely location for support files using the location of the binary.
4456 For installed binaries this will be "$bindir/../share/qemu". When
4457 running from the build tree this will be "$bindir/../pc-bios". */
4458 #define SHARE_SUFFIX "/share/qemu"
4459 #define BUILD_SUFFIX "/pc-bios"
4460 static char *find_datadir(const char *argv0
)
4468 #if defined(__linux__)
4471 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4477 #elif defined(__FreeBSD__)
4480 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4487 /* If we don't have any way of figuring out the actual executable
4488 location then try argv[0]. */
4490 p
= realpath(argv0
, buf
);
4498 max_len
= strlen(dir
) +
4499 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4500 res
= qemu_mallocz(max_len
);
4501 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4502 if (access(res
, R_OK
)) {
4503 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4504 if (access(res
, R_OK
)) {
4516 char *qemu_find_file(int type
, const char *name
)
4522 /* If name contains path separators then try it as a straight path. */
4523 if ((strchr(name
, '/') || strchr(name
, '\\'))
4524 && access(name
, R_OK
) == 0) {
4525 return qemu_strdup(name
);
4528 case QEMU_FILE_TYPE_BIOS
:
4531 case QEMU_FILE_TYPE_KEYMAP
:
4532 subdir
= "keymaps/";
4537 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4538 buf
= qemu_mallocz(len
);
4539 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4540 if (access(buf
, R_OK
)) {
4547 static int device_init_func(QemuOpts
*opts
, void *opaque
)
4551 dev
= qdev_device_add(opts
);
4557 struct device_config
{
4559 DEV_USB
, /* -usbdevice */
4562 const char *cmdline
;
4563 QTAILQ_ENTRY(device_config
) next
;
4565 QTAILQ_HEAD(, device_config
) device_configs
= QTAILQ_HEAD_INITIALIZER(device_configs
);
4567 static void add_device_config(int type
, const char *cmdline
)
4569 struct device_config
*conf
;
4571 conf
= qemu_mallocz(sizeof(*conf
));
4573 conf
->cmdline
= cmdline
;
4574 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
4577 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
4579 struct device_config
*conf
;
4582 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
4583 if (conf
->type
!= type
)
4585 rc
= func(conf
->cmdline
);
4592 int main(int argc
, char **argv
, char **envp
)
4594 const char *gdbstub_dev
= NULL
;
4595 uint32_t boot_devices_bitmap
= 0;
4597 int snapshot
, linux_boot
, net_boot
;
4598 const char *initrd_filename
;
4599 const char *kernel_filename
, *kernel_cmdline
;
4600 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4602 DisplayChangeListener
*dcl
;
4603 int cyls
, heads
, secs
, translation
;
4604 QemuOpts
*hda_opts
= NULL
, *opts
;
4606 const char *r
, *optarg
;
4607 CharDriverState
*monitor_hds
[MAX_MONITOR_DEVICES
];
4608 const char *monitor_devices
[MAX_MONITOR_DEVICES
];
4609 int monitor_flags
[MAX_MONITOR_DEVICES
];
4610 int monitor_device_index
;
4611 const char *serial_devices
[MAX_SERIAL_PORTS
];
4612 int serial_device_index
;
4613 const char *parallel_devices
[MAX_PARALLEL_PORTS
];
4614 int parallel_device_index
;
4615 const char *virtio_consoles
[MAX_VIRTIO_CONSOLES
];
4616 int virtio_console_index
;
4617 const char *loadvm
= NULL
;
4618 QEMUMachine
*machine
;
4619 const char *cpu_model
;
4624 const char *pid_file
= NULL
;
4625 const char *incoming
= NULL
;
4628 struct passwd
*pwd
= NULL
;
4629 const char *chroot_dir
= NULL
;
4630 const char *run_as
= NULL
;
4633 int show_vnc_port
= 0;
4637 qemu_errors_to_file(stderr
);
4638 qemu_cache_utils_init(envp
);
4640 QLIST_INIT (&vm_change_state_head
);
4643 struct sigaction act
;
4644 sigfillset(&act
.sa_mask
);
4646 act
.sa_handler
= SIG_IGN
;
4647 sigaction(SIGPIPE
, &act
, NULL
);
4650 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4651 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4652 QEMU to run on a single CPU */
4657 h
= GetCurrentProcess();
4658 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4659 for(i
= 0; i
< 32; i
++) {
4660 if (mask
& (1 << i
))
4665 SetProcessAffinityMask(h
, mask
);
4671 module_call_init(MODULE_INIT_MACHINE
);
4672 machine
= find_default_machine();
4674 initrd_filename
= NULL
;
4677 kernel_filename
= NULL
;
4678 kernel_cmdline
= "";
4679 cyls
= heads
= secs
= 0;
4680 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4682 serial_devices
[0] = "vc:80Cx24C";
4683 for(i
= 1; i
< MAX_SERIAL_PORTS
; i
++)
4684 serial_devices
[i
] = NULL
;
4685 serial_device_index
= 0;
4687 parallel_devices
[0] = "vc:80Cx24C";
4688 for(i
= 1; i
< MAX_PARALLEL_PORTS
; i
++)
4689 parallel_devices
[i
] = NULL
;
4690 parallel_device_index
= 0;
4692 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++)
4693 virtio_consoles
[i
] = NULL
;
4694 virtio_console_index
= 0;
4696 monitor_devices
[0] = "vc:80Cx24C";
4697 monitor_flags
[0] = MONITOR_IS_DEFAULT
| MONITOR_USE_READLINE
;
4698 for (i
= 1; i
< MAX_MONITOR_DEVICES
; i
++) {
4699 monitor_devices
[i
] = NULL
;
4700 monitor_flags
[i
] = MONITOR_USE_READLINE
;
4702 monitor_device_index
= 0;
4704 for (i
= 0; i
< MAX_NODES
; i
++) {
4706 node_cpumask
[i
] = 0;
4721 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4723 const QEMUOption
*popt
;
4726 /* Treat --foo the same as -foo. */
4729 popt
= qemu_options
;
4732 fprintf(stderr
, "%s: invalid option -- '%s'\n",
4736 if (!strcmp(popt
->name
, r
+ 1))
4740 if (popt
->flags
& HAS_ARG
) {
4741 if (optind
>= argc
) {
4742 fprintf(stderr
, "%s: option '%s' requires an argument\n",
4746 optarg
= argv
[optind
++];
4751 switch(popt
->index
) {
4753 machine
= find_machine(optarg
);
4756 printf("Supported machines are:\n");
4757 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4759 printf("%-10s %s (alias of %s)\n",
4760 m
->alias
, m
->desc
, m
->name
);
4761 printf("%-10s %s%s\n",
4763 m
->is_default
? " (default)" : "");
4765 exit(*optarg
!= '?');
4768 case QEMU_OPTION_cpu
:
4769 /* hw initialization will check this */
4770 if (*optarg
== '?') {
4771 /* XXX: implement xxx_cpu_list for targets that still miss it */
4772 #if defined(cpu_list)
4773 cpu_list(stdout
, &fprintf
);
4780 case QEMU_OPTION_initrd
:
4781 initrd_filename
= optarg
;
4783 case QEMU_OPTION_hda
:
4785 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
4787 hda_opts
= drive_add(optarg
, HD_ALIAS
4788 ",cyls=%d,heads=%d,secs=%d%s",
4789 0, cyls
, heads
, secs
,
4790 translation
== BIOS_ATA_TRANSLATION_LBA
?
4792 translation
== BIOS_ATA_TRANSLATION_NONE
?
4793 ",trans=none" : "");
4795 case QEMU_OPTION_hdb
:
4796 case QEMU_OPTION_hdc
:
4797 case QEMU_OPTION_hdd
:
4798 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
4800 case QEMU_OPTION_drive
:
4801 drive_add(NULL
, "%s", optarg
);
4803 case QEMU_OPTION_set
:
4804 if (qemu_set_option(optarg
) != 0)
4807 case QEMU_OPTION_mtdblock
:
4808 drive_add(optarg
, MTD_ALIAS
);
4810 case QEMU_OPTION_sd
:
4811 drive_add(optarg
, SD_ALIAS
);
4813 case QEMU_OPTION_pflash
:
4814 drive_add(optarg
, PFLASH_ALIAS
);
4816 case QEMU_OPTION_snapshot
:
4819 case QEMU_OPTION_hdachs
:
4823 cyls
= strtol(p
, (char **)&p
, 0);
4824 if (cyls
< 1 || cyls
> 16383)
4829 heads
= strtol(p
, (char **)&p
, 0);
4830 if (heads
< 1 || heads
> 16)
4835 secs
= strtol(p
, (char **)&p
, 0);
4836 if (secs
< 1 || secs
> 63)
4840 if (!strcmp(p
, "none"))
4841 translation
= BIOS_ATA_TRANSLATION_NONE
;
4842 else if (!strcmp(p
, "lba"))
4843 translation
= BIOS_ATA_TRANSLATION_LBA
;
4844 else if (!strcmp(p
, "auto"))
4845 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4848 } else if (*p
!= '\0') {
4850 fprintf(stderr
, "qemu: invalid physical CHS format\n");
4853 if (hda_opts
!= NULL
) {
4855 snprintf(num
, sizeof(num
), "%d", cyls
);
4856 qemu_opt_set(hda_opts
, "cyls", num
);
4857 snprintf(num
, sizeof(num
), "%d", heads
);
4858 qemu_opt_set(hda_opts
, "heads", num
);
4859 snprintf(num
, sizeof(num
), "%d", secs
);
4860 qemu_opt_set(hda_opts
, "secs", num
);
4861 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
4862 qemu_opt_set(hda_opts
, "trans", "lba");
4863 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
4864 qemu_opt_set(hda_opts
, "trans", "none");
4868 case QEMU_OPTION_numa
:
4869 if (nb_numa_nodes
>= MAX_NODES
) {
4870 fprintf(stderr
, "qemu: too many NUMA nodes\n");
4875 case QEMU_OPTION_nographic
:
4876 display_type
= DT_NOGRAPHIC
;
4878 #ifdef CONFIG_CURSES
4879 case QEMU_OPTION_curses
:
4880 display_type
= DT_CURSES
;
4883 case QEMU_OPTION_portrait
:
4886 case QEMU_OPTION_kernel
:
4887 kernel_filename
= optarg
;
4889 case QEMU_OPTION_append
:
4890 kernel_cmdline
= optarg
;
4892 case QEMU_OPTION_cdrom
:
4893 drive_add(optarg
, CDROM_ALIAS
);
4895 case QEMU_OPTION_boot
:
4897 static const char * const params
[] = {
4898 "order", "once", "menu", NULL
4900 char buf
[sizeof(boot_devices
)];
4901 char *standard_boot_devices
;
4904 if (!strchr(optarg
, '=')) {
4906 pstrcpy(buf
, sizeof(buf
), optarg
);
4907 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
4909 "qemu: unknown boot parameter '%s' in '%s'\n",
4915 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
4916 boot_devices_bitmap
= parse_bootdevices(buf
);
4917 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4920 if (get_param_value(buf
, sizeof(buf
),
4922 boot_devices_bitmap
|= parse_bootdevices(buf
);
4923 standard_boot_devices
= qemu_strdup(boot_devices
);
4924 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4925 qemu_register_reset(restore_boot_devices
,
4926 standard_boot_devices
);
4928 if (get_param_value(buf
, sizeof(buf
),
4930 if (!strcmp(buf
, "on")) {
4932 } else if (!strcmp(buf
, "off")) {
4936 "qemu: invalid option value '%s'\n",
4944 case QEMU_OPTION_fda
:
4945 case QEMU_OPTION_fdb
:
4946 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
4949 case QEMU_OPTION_no_fd_bootchk
:
4953 case QEMU_OPTION_netdev
:
4954 if (net_client_parse(&qemu_netdev_opts
, optarg
) == -1) {
4958 case QEMU_OPTION_net
:
4959 if (net_client_parse(&qemu_net_opts
, optarg
) == -1) {
4964 case QEMU_OPTION_tftp
:
4965 legacy_tftp_prefix
= optarg
;
4967 case QEMU_OPTION_bootp
:
4968 legacy_bootp_filename
= optarg
;
4971 case QEMU_OPTION_smb
:
4972 if (net_slirp_smb(optarg
) < 0)
4976 case QEMU_OPTION_redir
:
4977 if (net_slirp_redir(optarg
) < 0)
4981 case QEMU_OPTION_bt
:
4982 add_device_config(DEV_BT
, optarg
);
4985 case QEMU_OPTION_audio_help
:
4989 case QEMU_OPTION_soundhw
:
4990 select_soundhw (optarg
);
4996 case QEMU_OPTION_version
:
5000 case QEMU_OPTION_m
: {
5004 value
= strtoul(optarg
, &ptr
, 10);
5006 case 0: case 'M': case 'm':
5013 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5017 /* On 32-bit hosts, QEMU is limited by virtual address space */
5018 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
5019 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5022 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5023 fprintf(stderr
, "qemu: ram size too large\n");
5032 const CPULogItem
*item
;
5034 mask
= cpu_str_to_log_mask(optarg
);
5036 printf("Log items (comma separated):\n");
5037 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5038 printf("%-10s %s\n", item
->name
, item
->help
);
5046 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5048 case QEMU_OPTION_gdb
:
5049 gdbstub_dev
= optarg
;
5054 case QEMU_OPTION_bios
:
5057 case QEMU_OPTION_singlestep
:
5064 keyboard_layout
= optarg
;
5066 case QEMU_OPTION_localtime
:
5069 case QEMU_OPTION_vga
:
5070 select_vgahw (optarg
);
5072 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5078 w
= strtol(p
, (char **)&p
, 10);
5081 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5087 h
= strtol(p
, (char **)&p
, 10);
5092 depth
= strtol(p
, (char **)&p
, 10);
5093 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5094 depth
!= 24 && depth
!= 32)
5096 } else if (*p
== '\0') {
5097 depth
= graphic_depth
;
5104 graphic_depth
= depth
;
5108 case QEMU_OPTION_echr
:
5111 term_escape_char
= strtol(optarg
, &r
, 0);
5113 printf("Bad argument to echr\n");
5116 case QEMU_OPTION_monitor
:
5117 if (monitor_device_index
>= MAX_MONITOR_DEVICES
) {
5118 fprintf(stderr
, "qemu: too many monitor devices\n");
5121 monitor_devices
[monitor_device_index
] =
5122 monitor_cmdline_parse(optarg
,
5123 &monitor_flags
[monitor_device_index
]);
5124 monitor_device_index
++;
5126 case QEMU_OPTION_chardev
:
5127 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, "backend");
5129 fprintf(stderr
, "parse error: %s\n", optarg
);
5132 if (qemu_chr_open_opts(opts
, NULL
) == NULL
) {
5136 case QEMU_OPTION_serial
:
5137 if (serial_device_index
>= MAX_SERIAL_PORTS
) {
5138 fprintf(stderr
, "qemu: too many serial ports\n");
5141 serial_devices
[serial_device_index
] = optarg
;
5142 serial_device_index
++;
5144 case QEMU_OPTION_watchdog
:
5147 "qemu: only one watchdog option may be given\n");
5152 case QEMU_OPTION_watchdog_action
:
5153 if (select_watchdog_action(optarg
) == -1) {
5154 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5158 case QEMU_OPTION_virtiocon
:
5159 if (virtio_console_index
>= MAX_VIRTIO_CONSOLES
) {
5160 fprintf(stderr
, "qemu: too many virtio consoles\n");
5163 virtio_consoles
[virtio_console_index
] = optarg
;
5164 virtio_console_index
++;
5166 case QEMU_OPTION_parallel
:
5167 if (parallel_device_index
>= MAX_PARALLEL_PORTS
) {
5168 fprintf(stderr
, "qemu: too many parallel ports\n");
5171 parallel_devices
[parallel_device_index
] = optarg
;
5172 parallel_device_index
++;
5174 case QEMU_OPTION_loadvm
:
5177 case QEMU_OPTION_full_screen
:
5181 case QEMU_OPTION_no_frame
:
5184 case QEMU_OPTION_alt_grab
:
5187 case QEMU_OPTION_ctrl_grab
:
5190 case QEMU_OPTION_no_quit
:
5193 case QEMU_OPTION_sdl
:
5194 display_type
= DT_SDL
;
5197 case QEMU_OPTION_pidfile
:
5201 case QEMU_OPTION_win2k_hack
:
5202 win2k_install_hack
= 1;
5204 case QEMU_OPTION_rtc_td_hack
:
5207 case QEMU_OPTION_acpitable
:
5208 if(acpi_table_add(optarg
) < 0) {
5209 fprintf(stderr
, "Wrong acpi table provided\n");
5213 case QEMU_OPTION_smbios
:
5214 if(smbios_entry_add(optarg
) < 0) {
5215 fprintf(stderr
, "Wrong smbios provided\n");
5221 case QEMU_OPTION_enable_kvm
:
5225 case QEMU_OPTION_usb
:
5228 case QEMU_OPTION_usbdevice
:
5230 add_device_config(DEV_USB
, optarg
);
5232 case QEMU_OPTION_device
:
5233 if (!qemu_opts_parse(&qemu_device_opts
, optarg
, "driver")) {
5237 case QEMU_OPTION_smp
:
5240 fprintf(stderr
, "Invalid number of CPUs\n");
5243 if (max_cpus
< smp_cpus
) {
5244 fprintf(stderr
, "maxcpus must be equal to or greater than "
5248 if (max_cpus
> 255) {
5249 fprintf(stderr
, "Unsupported number of maxcpus\n");
5253 case QEMU_OPTION_vnc
:
5254 display_type
= DT_VNC
;
5255 vnc_display
= optarg
;
5258 case QEMU_OPTION_no_acpi
:
5261 case QEMU_OPTION_no_hpet
:
5264 case QEMU_OPTION_balloon
:
5265 if (balloon_parse(optarg
) < 0) {
5266 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5271 case QEMU_OPTION_no_reboot
:
5274 case QEMU_OPTION_no_shutdown
:
5277 case QEMU_OPTION_show_cursor
:
5280 case QEMU_OPTION_uuid
:
5281 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5282 fprintf(stderr
, "Fail to parse UUID string."
5283 " Wrong format.\n");
5288 case QEMU_OPTION_daemonize
:
5292 case QEMU_OPTION_option_rom
:
5293 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5294 fprintf(stderr
, "Too many option ROMs\n");
5297 option_rom
[nb_option_roms
] = optarg
;
5300 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5301 case QEMU_OPTION_semihosting
:
5302 semihosting_enabled
= 1;
5305 case QEMU_OPTION_name
:
5306 qemu_name
= qemu_strdup(optarg
);
5308 char *p
= strchr(qemu_name
, ',');
5311 if (strncmp(p
, "process=", 8)) {
5312 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5320 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5321 case QEMU_OPTION_prom_env
:
5322 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5323 fprintf(stderr
, "Too many prom variables\n");
5326 prom_envs
[nb_prom_envs
] = optarg
;
5331 case QEMU_OPTION_old_param
:
5335 case QEMU_OPTION_clock
:
5336 configure_alarms(optarg
);
5338 case QEMU_OPTION_startdate
:
5339 configure_rtc_date_offset(optarg
, 1);
5341 case QEMU_OPTION_rtc
:
5342 opts
= qemu_opts_parse(&qemu_rtc_opts
, optarg
, NULL
);
5344 fprintf(stderr
, "parse error: %s\n", optarg
);
5347 configure_rtc(opts
);
5349 case QEMU_OPTION_tb_size
:
5350 tb_size
= strtol(optarg
, NULL
, 0);
5354 case QEMU_OPTION_icount
:
5356 if (strcmp(optarg
, "auto") == 0) {
5357 icount_time_shift
= -1;
5359 icount_time_shift
= strtol(optarg
, NULL
, 0);
5362 case QEMU_OPTION_incoming
:
5366 case QEMU_OPTION_chroot
:
5367 chroot_dir
= optarg
;
5369 case QEMU_OPTION_runas
:
5374 case QEMU_OPTION_xen_domid
:
5375 xen_domid
= atoi(optarg
);
5377 case QEMU_OPTION_xen_create
:
5378 xen_mode
= XEN_CREATE
;
5380 case QEMU_OPTION_xen_attach
:
5381 xen_mode
= XEN_ATTACH
;
5384 case QEMU_OPTION_readconfig
:
5387 fp
= fopen(optarg
, "r");
5389 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5392 if (qemu_config_parse(fp
) != 0) {
5398 case QEMU_OPTION_writeconfig
:
5401 if (strcmp(optarg
, "-") == 0) {
5404 fp
= fopen(optarg
, "w");
5406 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5410 qemu_config_write(fp
);
5418 /* If no data_dir is specified then try to find it relative to the
5421 data_dir
= find_datadir(argv
[0]);
5423 /* If all else fails use the install patch specified when building. */
5425 data_dir
= CONFIG_QEMU_SHAREDIR
;
5429 * Default to max_cpus = smp_cpus, in case the user doesn't
5430 * specify a max_cpus value.
5433 max_cpus
= smp_cpus
;
5435 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5436 if (smp_cpus
> machine
->max_cpus
) {
5437 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5438 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5443 if (display_type
== DT_NOGRAPHIC
) {
5444 if (serial_device_index
== 0)
5445 serial_devices
[0] = "stdio";
5446 if (parallel_device_index
== 0)
5447 parallel_devices
[0] = "null";
5448 if (strncmp(monitor_devices
[0], "vc", 2) == 0) {
5449 monitor_devices
[0] = "stdio";
5457 if (pipe(fds
) == -1)
5468 len
= read(fds
[0], &status
, 1);
5469 if (len
== -1 && (errno
== EINTR
))
5474 else if (status
== 1) {
5475 fprintf(stderr
, "Could not acquire pidfile: %s\n", strerror(errno
));
5492 signal(SIGTSTP
, SIG_IGN
);
5493 signal(SIGTTOU
, SIG_IGN
);
5494 signal(SIGTTIN
, SIG_IGN
);
5497 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5500 write(fds
[1], &status
, 1);
5502 fprintf(stderr
, "Could not acquire pid file: %s\n", strerror(errno
));
5507 if (kvm_enabled()) {
5510 ret
= kvm_init(smp_cpus
);
5512 fprintf(stderr
, "failed to initialize KVM\n");
5517 if (qemu_init_main_loop()) {
5518 fprintf(stderr
, "qemu_init_main_loop failed\n");
5521 linux_boot
= (kernel_filename
!= NULL
);
5523 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5524 fprintf(stderr
, "-append only allowed with -kernel option\n");
5528 if (!linux_boot
&& initrd_filename
!= NULL
) {
5529 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5534 /* Win32 doesn't support line-buffering and requires size >= 2 */
5535 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5538 if (init_timer_alarm() < 0) {
5539 fprintf(stderr
, "could not initialize alarm timer\n");
5542 if (use_icount
&& icount_time_shift
< 0) {
5544 /* 125MIPS seems a reasonable initial guess at the guest speed.
5545 It will be corrected fairly quickly anyway. */
5546 icount_time_shift
= 3;
5547 init_icount_adjust();
5554 if (net_init_clients() < 0) {
5558 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5559 net_set_boot_mask(net_boot
);
5561 /* init the bluetooth world */
5562 if (foreach_device_config(DEV_BT
, bt_parse
))
5565 /* init the memory */
5567 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5569 /* init the dynamic translator */
5570 cpu_exec_init_all(tb_size
* 1024 * 1024);
5572 bdrv_init_with_whitelist();
5576 /* we always create the cdrom drive, even if no disk is there */
5577 drive_add(NULL
, CDROM_ALIAS
);
5579 /* we always create at least one floppy */
5580 drive_add(NULL
, FD_ALIAS
, 0);
5582 /* we always create one sd slot, even if no card is in it */
5583 drive_add(NULL
, SD_ALIAS
);
5585 /* open the virtual block devices */
5587 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
5588 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
5591 vmstate_register(0, &vmstate_timers
,&timers_state
);
5592 register_savevm_live("ram", 0, 3, NULL
, ram_save_live
, NULL
,
5595 /* Maintain compatibility with multiple stdio monitors */
5596 if (!strcmp(monitor_devices
[0],"stdio")) {
5597 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5598 const char *devname
= serial_devices
[i
];
5599 if (devname
&& !strcmp(devname
,"mon:stdio")) {
5600 monitor_devices
[0] = NULL
;
5602 } else if (devname
&& !strcmp(devname
,"stdio")) {
5603 monitor_devices
[0] = NULL
;
5604 serial_devices
[i
] = "mon:stdio";
5610 if (nb_numa_nodes
> 0) {
5613 if (nb_numa_nodes
> smp_cpus
) {
5614 nb_numa_nodes
= smp_cpus
;
5617 /* If no memory size if given for any node, assume the default case
5618 * and distribute the available memory equally across all nodes
5620 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5621 if (node_mem
[i
] != 0)
5624 if (i
== nb_numa_nodes
) {
5625 uint64_t usedmem
= 0;
5627 /* On Linux, the each node's border has to be 8MB aligned,
5628 * the final node gets the rest.
5630 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5631 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5632 usedmem
+= node_mem
[i
];
5634 node_mem
[i
] = ram_size
- usedmem
;
5637 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5638 if (node_cpumask
[i
] != 0)
5641 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5642 * must cope with this anyway, because there are BIOSes out there in
5643 * real machines which also use this scheme.
5645 if (i
== nb_numa_nodes
) {
5646 for (i
= 0; i
< smp_cpus
; i
++) {
5647 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5652 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5653 const char *devname
= monitor_devices
[i
];
5654 if (devname
&& strcmp(devname
, "none")) {
5657 snprintf(label
, sizeof(label
), "monitor");
5659 snprintf(label
, sizeof(label
), "monitor%d", i
);
5661 monitor_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5662 if (!monitor_hds
[i
]) {
5663 fprintf(stderr
, "qemu: could not open monitor device '%s'\n",
5670 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5671 const char *devname
= serial_devices
[i
];
5672 if (devname
&& strcmp(devname
, "none")) {
5674 snprintf(label
, sizeof(label
), "serial%d", i
);
5675 serial_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5676 if (!serial_hds
[i
]) {
5677 fprintf(stderr
, "qemu: could not open serial device '%s': %s\n",
5678 devname
, strerror(errno
));
5684 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5685 const char *devname
= parallel_devices
[i
];
5686 if (devname
&& strcmp(devname
, "none")) {
5688 snprintf(label
, sizeof(label
), "parallel%d", i
);
5689 parallel_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5690 if (!parallel_hds
[i
]) {
5691 fprintf(stderr
, "qemu: could not open parallel device '%s': %s\n",
5692 devname
, strerror(errno
));
5698 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5699 const char *devname
= virtio_consoles
[i
];
5700 if (devname
&& strcmp(devname
, "none")) {
5702 snprintf(label
, sizeof(label
), "virtcon%d", i
);
5703 virtcon_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5704 if (!virtcon_hds
[i
]) {
5705 fprintf(stderr
, "qemu: could not open virtio console '%s': %s\n",
5706 devname
, strerror(errno
));
5712 module_call_init(MODULE_INIT_DEVICE
);
5715 i
= select_watchdog(watchdog
);
5717 exit (i
== 1 ? 1 : 0);
5720 if (machine
->compat_props
) {
5721 qdev_prop_register_compat(machine
->compat_props
);
5723 machine
->init(ram_size
, boot_devices
,
5724 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5728 /* must be after terminal init, SDL library changes signal handlers */
5732 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5733 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5734 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5740 current_machine
= machine
;
5742 /* init USB devices */
5744 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
5748 /* init generic devices */
5749 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
5753 dumb_display_init();
5754 /* just use the first displaystate for the moment */
5757 if (display_type
== DT_DEFAULT
) {
5758 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5759 display_type
= DT_SDL
;
5761 display_type
= DT_VNC
;
5762 vnc_display
= "localhost:0,to=99";
5768 switch (display_type
) {
5771 #if defined(CONFIG_CURSES)
5773 curses_display_init(ds
, full_screen
);
5776 #if defined(CONFIG_SDL)
5778 sdl_display_init(ds
, full_screen
, no_frame
);
5780 #elif defined(CONFIG_COCOA)
5782 cocoa_display_init(ds
, full_screen
);
5786 vnc_display_init(ds
);
5787 if (vnc_display_open(ds
, vnc_display
) < 0)
5790 if (show_vnc_port
) {
5791 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
5799 dcl
= ds
->listeners
;
5800 while (dcl
!= NULL
) {
5801 if (dcl
->dpy_refresh
!= NULL
) {
5802 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
5803 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
5808 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
5809 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
5810 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
5813 text_consoles_set_display(display_state
);
5815 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5816 if (monitor_devices
[i
] && monitor_hds
[i
]) {
5817 monitor_init(monitor_hds
[i
], monitor_flags
[i
]);
5821 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5822 const char *devname
= serial_devices
[i
];
5823 if (devname
&& strcmp(devname
, "none")) {
5824 if (strstart(devname
, "vc", 0))
5825 qemu_chr_printf(serial_hds
[i
], "serial%d console\r\n", i
);
5829 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5830 const char *devname
= parallel_devices
[i
];
5831 if (devname
&& strcmp(devname
, "none")) {
5832 if (strstart(devname
, "vc", 0))
5833 qemu_chr_printf(parallel_hds
[i
], "parallel%d console\r\n", i
);
5837 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5838 const char *devname
= virtio_consoles
[i
];
5839 if (virtcon_hds
[i
] && devname
) {
5840 if (strstart(devname
, "vc", 0))
5841 qemu_chr_printf(virtcon_hds
[i
], "virtio console%d\r\n", i
);
5845 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
5846 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
5851 qdev_machine_creation_done();
5855 qemu_system_reset();
5857 if (load_vmstate(cur_mon
, loadvm
) < 0) {
5863 qemu_start_incoming_migration(incoming
);
5864 } else if (autostart
) {
5874 len
= write(fds
[1], &status
, 1);
5875 if (len
== -1 && (errno
== EINTR
))
5882 TFR(fd
= open("/dev/null", O_RDWR
));
5888 pwd
= getpwnam(run_as
);
5890 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
5896 if (chroot(chroot_dir
) < 0) {
5897 fprintf(stderr
, "chroot failed\n");
5904 if (setgid(pwd
->pw_gid
) < 0) {
5905 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
5908 if (setuid(pwd
->pw_uid
) < 0) {
5909 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
5912 if (setuid(0) != -1) {
5913 fprintf(stderr
, "Dropping privileges failed\n");