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"
159 #include "qemu-objects.h"
163 #include "exec-all.h"
165 #include "qemu_socket.h"
167 #include "slirp/libslirp.h"
169 #include "qemu-queue.h"
172 //#define DEBUG_SLIRP
174 #define DEFAULT_RAM_SIZE 128
176 #define MAX_VIRTIO_CONSOLES 1
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_NONE
;
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 static int default_serial
= 1;
275 static int default_parallel
= 1;
276 static int default_virtcon
= 1;
277 static int default_monitor
= 1;
278 static int default_vga
= 1;
279 static int default_floppy
= 1;
280 static int default_cdrom
= 1;
281 static int default_sdcard
= 1;
287 { .driver
= "isa-serial", .flag
= &default_serial
},
288 { .driver
= "isa-parallel", .flag
= &default_parallel
},
289 { .driver
= "isa-fdc", .flag
= &default_floppy
},
290 { .driver
= "ide-drive", .flag
= &default_cdrom
},
291 { .driver
= "virtio-serial-pci", .flag
= &default_virtcon
},
292 { .driver
= "virtio-serial-s390", .flag
= &default_virtcon
},
293 { .driver
= "virtio-serial", .flag
= &default_virtcon
},
294 { .driver
= "VGA", .flag
= &default_vga
},
295 { .driver
= "cirrus-vga", .flag
= &default_vga
},
296 { .driver
= "vmware-svga", .flag
= &default_vga
},
299 static int default_driver_check(QemuOpts
*opts
, void *opaque
)
301 const char *driver
= qemu_opt_get(opts
, "driver");
306 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
307 if (strcmp(default_list
[i
].driver
, driver
) != 0)
309 *(default_list
[i
].flag
) = 0;
314 /***********************************************************/
315 /* x86 ISA bus support */
317 target_phys_addr_t isa_mem_base
= 0;
320 /***********************************************************/
321 void hw_error(const char *fmt
, ...)
327 fprintf(stderr
, "qemu: hardware error: ");
328 vfprintf(stderr
, fmt
, ap
);
329 fprintf(stderr
, "\n");
330 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
331 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
333 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
335 cpu_dump_state(env
, stderr
, fprintf
, 0);
342 static void set_proc_name(const char *s
)
344 #if defined(__linux__) && defined(PR_SET_NAME)
348 name
[sizeof(name
) - 1] = 0;
349 strncpy(name
, s
, sizeof(name
));
350 /* Could rewrite argv[0] too, but that's a bit more complicated.
351 This simple way is enough for `top'. */
352 prctl(PR_SET_NAME
, name
);
359 static QEMUBalloonEvent
*qemu_balloon_event
;
360 void *qemu_balloon_event_opaque
;
362 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
364 qemu_balloon_event
= func
;
365 qemu_balloon_event_opaque
= opaque
;
368 int qemu_balloon(ram_addr_t target
, MonitorCompletion cb
, void *opaque
)
370 if (qemu_balloon_event
) {
371 qemu_balloon_event(qemu_balloon_event_opaque
, target
, cb
, opaque
);
378 int qemu_balloon_status(MonitorCompletion cb
, void *opaque
)
380 if (qemu_balloon_event
) {
381 qemu_balloon_event(qemu_balloon_event_opaque
, 0, cb
, opaque
);
389 /***********************************************************/
390 /* real time host monotonic timer */
392 /* compute with 96 bit intermediate result: (a*b)/c */
393 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
398 #ifdef HOST_WORDS_BIGENDIAN
408 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
409 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
412 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
416 static int64_t get_clock_realtime(void)
420 gettimeofday(&tv
, NULL
);
421 return tv
.tv_sec
* 1000000000LL + (tv
.tv_usec
* 1000);
426 static int64_t clock_freq
;
428 static void init_get_clock(void)
432 ret
= QueryPerformanceFrequency(&freq
);
434 fprintf(stderr
, "Could not calibrate ticks\n");
437 clock_freq
= freq
.QuadPart
;
440 static int64_t get_clock(void)
443 QueryPerformanceCounter(&ti
);
444 return muldiv64(ti
.QuadPart
, get_ticks_per_sec(), clock_freq
);
449 static int use_rt_clock
;
451 static void init_get_clock(void)
454 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
455 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
458 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0) {
465 static int64_t get_clock(void)
467 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
468 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
471 clock_gettime(CLOCK_MONOTONIC
, &ts
);
472 return ts
.tv_sec
* 1000000000LL + ts
.tv_nsec
;
476 /* XXX: using gettimeofday leads to problems if the date
477 changes, so it should be avoided. */
478 return get_clock_realtime();
483 /* Return the virtual CPU time, based on the instruction counter. */
484 static int64_t cpu_get_icount(void)
487 CPUState
*env
= cpu_single_env
;;
488 icount
= qemu_icount
;
491 fprintf(stderr
, "Bad clock read\n");
492 icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
494 return qemu_icount_bias
+ (icount
<< icount_time_shift
);
497 /***********************************************************/
498 /* guest cycle counter */
500 typedef struct TimersState
{
501 int64_t cpu_ticks_prev
;
502 int64_t cpu_ticks_offset
;
503 int64_t cpu_clock_offset
;
504 int32_t cpu_ticks_enabled
;
508 TimersState timers_state
;
510 /* return the host CPU cycle counter and handle stop/restart */
511 int64_t cpu_get_ticks(void)
514 return cpu_get_icount();
516 if (!timers_state
.cpu_ticks_enabled
) {
517 return timers_state
.cpu_ticks_offset
;
520 ticks
= cpu_get_real_ticks();
521 if (timers_state
.cpu_ticks_prev
> ticks
) {
522 /* Note: non increasing ticks may happen if the host uses
524 timers_state
.cpu_ticks_offset
+= timers_state
.cpu_ticks_prev
- ticks
;
526 timers_state
.cpu_ticks_prev
= ticks
;
527 return ticks
+ timers_state
.cpu_ticks_offset
;
531 /* return the host CPU monotonic timer and handle stop/restart */
532 static int64_t cpu_get_clock(void)
535 if (!timers_state
.cpu_ticks_enabled
) {
536 return timers_state
.cpu_clock_offset
;
539 return ti
+ timers_state
.cpu_clock_offset
;
543 /* enable cpu_get_ticks() */
544 void cpu_enable_ticks(void)
546 if (!timers_state
.cpu_ticks_enabled
) {
547 timers_state
.cpu_ticks_offset
-= cpu_get_real_ticks();
548 timers_state
.cpu_clock_offset
-= get_clock();
549 timers_state
.cpu_ticks_enabled
= 1;
553 /* disable cpu_get_ticks() : the clock is stopped. You must not call
554 cpu_get_ticks() after that. */
555 void cpu_disable_ticks(void)
557 if (timers_state
.cpu_ticks_enabled
) {
558 timers_state
.cpu_ticks_offset
= cpu_get_ticks();
559 timers_state
.cpu_clock_offset
= cpu_get_clock();
560 timers_state
.cpu_ticks_enabled
= 0;
564 /***********************************************************/
567 #define QEMU_CLOCK_REALTIME 0
568 #define QEMU_CLOCK_VIRTUAL 1
569 #define QEMU_CLOCK_HOST 2
573 /* XXX: add frequency */
581 struct QEMUTimer
*next
;
584 struct qemu_alarm_timer
{
588 int (*start
)(struct qemu_alarm_timer
*t
);
589 void (*stop
)(struct qemu_alarm_timer
*t
);
590 void (*rearm
)(struct qemu_alarm_timer
*t
);
594 #define ALARM_FLAG_DYNTICKS 0x1
595 #define ALARM_FLAG_EXPIRED 0x2
597 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
599 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
602 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
604 if (!alarm_has_dynticks(t
))
610 /* TODO: MIN_TIMER_REARM_US should be optimized */
611 #define MIN_TIMER_REARM_US 250
613 static struct qemu_alarm_timer
*alarm_timer
;
617 struct qemu_alarm_win32
{
620 } alarm_win32_data
= {0, -1};
622 static int win32_start_timer(struct qemu_alarm_timer
*t
);
623 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
624 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
628 static int unix_start_timer(struct qemu_alarm_timer
*t
);
629 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
633 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
634 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
635 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
637 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
638 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
640 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
641 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
643 #endif /* __linux__ */
647 /* Correlation between real and virtual time is always going to be
648 fairly approximate, so ignore small variation.
649 When the guest is idle real and virtual time will be aligned in
651 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
653 static void icount_adjust(void)
658 static int64_t last_delta
;
659 /* If the VM is not running, then do nothing. */
663 cur_time
= cpu_get_clock();
664 cur_icount
= qemu_get_clock(vm_clock
);
665 delta
= cur_icount
- cur_time
;
666 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
668 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
669 && icount_time_shift
> 0) {
670 /* The guest is getting too far ahead. Slow time down. */
674 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
675 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
676 /* The guest is getting too far behind. Speed time up. */
680 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
683 static void icount_adjust_rt(void * opaque
)
685 qemu_mod_timer(icount_rt_timer
,
686 qemu_get_clock(rt_clock
) + 1000);
690 static void icount_adjust_vm(void * opaque
)
692 qemu_mod_timer(icount_vm_timer
,
693 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
697 static void init_icount_adjust(void)
699 /* Have both realtime and virtual time triggers for speed adjustment.
700 The realtime trigger catches emulated time passing too slowly,
701 the virtual time trigger catches emulated time passing too fast.
702 Realtime triggers occur even when idle, so use them less frequently
704 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
705 qemu_mod_timer(icount_rt_timer
,
706 qemu_get_clock(rt_clock
) + 1000);
707 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
708 qemu_mod_timer(icount_vm_timer
,
709 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
712 static struct qemu_alarm_timer alarm_timers
[] = {
715 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
716 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
717 /* HPET - if available - is preferred */
718 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
719 /* ...otherwise try RTC */
720 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
722 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
724 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
725 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
726 {"win32", 0, win32_start_timer
,
727 win32_stop_timer
, NULL
, &alarm_win32_data
},
732 static void show_available_alarms(void)
736 printf("Available alarm timers, in order of precedence:\n");
737 for (i
= 0; alarm_timers
[i
].name
; i
++)
738 printf("%s\n", alarm_timers
[i
].name
);
741 static void configure_alarms(char const *opt
)
745 int count
= ARRAY_SIZE(alarm_timers
) - 1;
748 struct qemu_alarm_timer tmp
;
750 if (!strcmp(opt
, "?")) {
751 show_available_alarms();
755 arg
= qemu_strdup(opt
);
757 /* Reorder the array */
758 name
= strtok(arg
, ",");
760 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
761 if (!strcmp(alarm_timers
[i
].name
, name
))
766 fprintf(stderr
, "Unknown clock %s\n", name
);
775 tmp
= alarm_timers
[i
];
776 alarm_timers
[i
] = alarm_timers
[cur
];
777 alarm_timers
[cur
] = tmp
;
781 name
= strtok(NULL
, ",");
787 /* Disable remaining timers */
788 for (i
= cur
; i
< count
; i
++)
789 alarm_timers
[i
].name
= NULL
;
791 show_available_alarms();
796 #define QEMU_NUM_CLOCKS 3
800 QEMUClock
*host_clock
;
802 static QEMUTimer
*active_timers
[QEMU_NUM_CLOCKS
];
804 static QEMUClock
*qemu_new_clock(int type
)
807 clock
= qemu_mallocz(sizeof(QEMUClock
));
812 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
816 ts
= qemu_mallocz(sizeof(QEMUTimer
));
823 void qemu_free_timer(QEMUTimer
*ts
)
828 /* stop a timer, but do not dealloc it */
829 void qemu_del_timer(QEMUTimer
*ts
)
833 /* NOTE: this code must be signal safe because
834 qemu_timer_expired() can be called from a signal. */
835 pt
= &active_timers
[ts
->clock
->type
];
848 /* modify the current timer so that it will be fired when current_time
849 >= expire_time. The corresponding callback will be called. */
850 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
856 /* add the timer in the sorted list */
857 /* NOTE: this code must be signal safe because
858 qemu_timer_expired() can be called from a signal. */
859 pt
= &active_timers
[ts
->clock
->type
];
864 if (t
->expire_time
> expire_time
)
868 ts
->expire_time
= expire_time
;
872 /* Rearm if necessary */
873 if (pt
== &active_timers
[ts
->clock
->type
]) {
874 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
875 qemu_rearm_alarm_timer(alarm_timer
);
877 /* Interrupt execution to force deadline recalculation. */
883 int qemu_timer_pending(QEMUTimer
*ts
)
886 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
893 int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
897 return (timer_head
->expire_time
<= current_time
);
900 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
906 if (!ts
|| ts
->expire_time
> current_time
)
908 /* remove timer from the list before calling the callback */
909 *ptimer_head
= ts
->next
;
912 /* run the callback (the timer list can be modified) */
917 int64_t qemu_get_clock(QEMUClock
*clock
)
919 switch(clock
->type
) {
920 case QEMU_CLOCK_REALTIME
:
921 return get_clock() / 1000000;
923 case QEMU_CLOCK_VIRTUAL
:
925 return cpu_get_icount();
927 return cpu_get_clock();
929 case QEMU_CLOCK_HOST
:
930 return get_clock_realtime();
934 static void init_clocks(void)
937 rt_clock
= qemu_new_clock(QEMU_CLOCK_REALTIME
);
938 vm_clock
= qemu_new_clock(QEMU_CLOCK_VIRTUAL
);
939 host_clock
= qemu_new_clock(QEMU_CLOCK_HOST
);
941 rtc_clock
= host_clock
;
945 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
947 uint64_t expire_time
;
949 if (qemu_timer_pending(ts
)) {
950 expire_time
= ts
->expire_time
;
954 qemu_put_be64(f
, expire_time
);
957 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
959 uint64_t expire_time
;
961 expire_time
= qemu_get_be64(f
);
962 if (expire_time
!= -1) {
963 qemu_mod_timer(ts
, expire_time
);
969 static const VMStateDescription vmstate_timers
= {
972 .minimum_version_id
= 1,
973 .minimum_version_id_old
= 1,
974 .fields
= (VMStateField
[]) {
975 VMSTATE_INT64(cpu_ticks_offset
, TimersState
),
976 VMSTATE_INT64(dummy
, TimersState
),
977 VMSTATE_INT64_V(cpu_clock_offset
, TimersState
, 2),
978 VMSTATE_END_OF_LIST()
982 static void qemu_event_increment(void);
985 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
986 DWORD_PTR dwUser
, DWORD_PTR dw1
,
989 static void host_alarm_handler(int host_signum
)
993 #define DISP_FREQ 1000
995 static int64_t delta_min
= INT64_MAX
;
996 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
998 ti
= qemu_get_clock(vm_clock
);
999 if (last_clock
!= 0) {
1000 delta
= ti
- last_clock
;
1001 if (delta
< delta_min
)
1003 if (delta
> delta_max
)
1006 if (++count
== DISP_FREQ
) {
1007 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1008 muldiv64(delta_min
, 1000000, get_ticks_per_sec()),
1009 muldiv64(delta_max
, 1000000, get_ticks_per_sec()),
1010 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, get_ticks_per_sec()),
1011 (double)get_ticks_per_sec() / ((double)delta_cum
/ DISP_FREQ
));
1013 delta_min
= INT64_MAX
;
1021 if (alarm_has_dynticks(alarm_timer
) ||
1023 qemu_timer_expired(active_timers
[QEMU_CLOCK_VIRTUAL
],
1024 qemu_get_clock(vm_clock
))) ||
1025 qemu_timer_expired(active_timers
[QEMU_CLOCK_REALTIME
],
1026 qemu_get_clock(rt_clock
)) ||
1027 qemu_timer_expired(active_timers
[QEMU_CLOCK_HOST
],
1028 qemu_get_clock(host_clock
))) {
1029 qemu_event_increment();
1030 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1032 #ifndef CONFIG_IOTHREAD
1034 /* stop the currently executing cpu because a timer occured */
1038 timer_alarm_pending
= 1;
1039 qemu_notify_event();
1043 static int64_t qemu_next_deadline(void)
1045 /* To avoid problems with overflow limit this to 2^32. */
1046 int64_t delta
= INT32_MAX
;
1048 if (active_timers
[QEMU_CLOCK_VIRTUAL
]) {
1049 delta
= active_timers
[QEMU_CLOCK_VIRTUAL
]->expire_time
-
1050 qemu_get_clock(vm_clock
);
1052 if (active_timers
[QEMU_CLOCK_HOST
]) {
1053 int64_t hdelta
= active_timers
[QEMU_CLOCK_HOST
]->expire_time
-
1054 qemu_get_clock(host_clock
);
1065 #if defined(__linux__)
1066 static uint64_t qemu_next_deadline_dyntick(void)
1074 delta
= (qemu_next_deadline() + 999) / 1000;
1076 if (active_timers
[QEMU_CLOCK_REALTIME
]) {
1077 rtdelta
= (active_timers
[QEMU_CLOCK_REALTIME
]->expire_time
-
1078 qemu_get_clock(rt_clock
))*1000;
1079 if (rtdelta
< delta
)
1083 if (delta
< MIN_TIMER_REARM_US
)
1084 delta
= MIN_TIMER_REARM_US
;
1092 /* Sets a specific flag */
1093 static int fcntl_setfl(int fd
, int flag
)
1097 flags
= fcntl(fd
, F_GETFL
);
1101 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1107 #if defined(__linux__)
1109 #define RTC_FREQ 1024
1111 static void enable_sigio_timer(int fd
)
1113 struct sigaction act
;
1116 sigfillset(&act
.sa_mask
);
1118 act
.sa_handler
= host_alarm_handler
;
1120 sigaction(SIGIO
, &act
, NULL
);
1121 fcntl_setfl(fd
, O_ASYNC
);
1122 fcntl(fd
, F_SETOWN
, getpid());
1125 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1127 struct hpet_info info
;
1130 fd
= qemu_open("/dev/hpet", O_RDONLY
);
1135 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1137 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1138 "error, but for better emulation accuracy type:\n"
1139 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1143 /* Check capabilities */
1144 r
= ioctl(fd
, HPET_INFO
, &info
);
1148 /* Enable periodic mode */
1149 r
= ioctl(fd
, HPET_EPI
, 0);
1150 if (info
.hi_flags
&& (r
< 0))
1153 /* Enable interrupt */
1154 r
= ioctl(fd
, HPET_IE_ON
, 0);
1158 enable_sigio_timer(fd
);
1159 t
->priv
= (void *)(long)fd
;
1167 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1169 int fd
= (long)t
->priv
;
1174 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1177 unsigned long current_rtc_freq
= 0;
1179 TFR(rtc_fd
= qemu_open("/dev/rtc", O_RDONLY
));
1182 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1183 if (current_rtc_freq
!= RTC_FREQ
&&
1184 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1185 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1186 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1187 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1190 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1196 enable_sigio_timer(rtc_fd
);
1198 t
->priv
= (void *)(long)rtc_fd
;
1203 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1205 int rtc_fd
= (long)t
->priv
;
1210 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1214 struct sigaction act
;
1216 sigfillset(&act
.sa_mask
);
1218 act
.sa_handler
= host_alarm_handler
;
1220 sigaction(SIGALRM
, &act
, NULL
);
1223 * Initialize ev struct to 0 to avoid valgrind complaining
1224 * about uninitialized data in timer_create call
1226 memset(&ev
, 0, sizeof(ev
));
1227 ev
.sigev_value
.sival_int
= 0;
1228 ev
.sigev_notify
= SIGEV_SIGNAL
;
1229 ev
.sigev_signo
= SIGALRM
;
1231 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1232 perror("timer_create");
1234 /* disable dynticks */
1235 fprintf(stderr
, "Dynamic Ticks disabled\n");
1240 t
->priv
= (void *)(long)host_timer
;
1245 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1247 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1249 timer_delete(host_timer
);
1252 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1254 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1255 struct itimerspec timeout
;
1256 int64_t nearest_delta_us
= INT64_MAX
;
1259 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1260 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1261 !active_timers
[QEMU_CLOCK_HOST
])
1264 nearest_delta_us
= qemu_next_deadline_dyntick();
1266 /* check whether a timer is already running */
1267 if (timer_gettime(host_timer
, &timeout
)) {
1269 fprintf(stderr
, "Internal timer error: aborting\n");
1272 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1273 if (current_us
&& current_us
<= nearest_delta_us
)
1276 timeout
.it_interval
.tv_sec
= 0;
1277 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1278 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1279 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1280 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1282 fprintf(stderr
, "Internal timer error: aborting\n");
1287 #endif /* defined(__linux__) */
1289 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1291 struct sigaction act
;
1292 struct itimerval itv
;
1296 sigfillset(&act
.sa_mask
);
1298 act
.sa_handler
= host_alarm_handler
;
1300 sigaction(SIGALRM
, &act
, NULL
);
1302 itv
.it_interval
.tv_sec
= 0;
1303 /* for i386 kernel 2.6 to get 1 ms */
1304 itv
.it_interval
.tv_usec
= 999;
1305 itv
.it_value
.tv_sec
= 0;
1306 itv
.it_value
.tv_usec
= 10 * 1000;
1308 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1315 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1317 struct itimerval itv
;
1319 memset(&itv
, 0, sizeof(itv
));
1320 setitimer(ITIMER_REAL
, &itv
, NULL
);
1323 #endif /* !defined(_WIN32) */
1328 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1331 struct qemu_alarm_win32
*data
= t
->priv
;
1334 memset(&tc
, 0, sizeof(tc
));
1335 timeGetDevCaps(&tc
, sizeof(tc
));
1337 if (data
->period
< tc
.wPeriodMin
)
1338 data
->period
= tc
.wPeriodMin
;
1340 timeBeginPeriod(data
->period
);
1342 flags
= TIME_CALLBACK_FUNCTION
;
1343 if (alarm_has_dynticks(t
))
1344 flags
|= TIME_ONESHOT
;
1346 flags
|= TIME_PERIODIC
;
1348 data
->timerId
= timeSetEvent(1, // interval (ms)
1349 data
->period
, // resolution
1350 host_alarm_handler
, // function
1351 (DWORD
)t
, // parameter
1354 if (!data
->timerId
) {
1355 fprintf(stderr
, "Failed to initialize win32 alarm timer: %ld\n",
1357 timeEndPeriod(data
->period
);
1364 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1366 struct qemu_alarm_win32
*data
= t
->priv
;
1368 timeKillEvent(data
->timerId
);
1369 timeEndPeriod(data
->period
);
1372 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1374 struct qemu_alarm_win32
*data
= t
->priv
;
1376 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1377 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1378 !active_timers
[QEMU_CLOCK_HOST
])
1381 timeKillEvent(data
->timerId
);
1383 data
->timerId
= timeSetEvent(1,
1387 TIME_ONESHOT
| TIME_PERIODIC
);
1389 if (!data
->timerId
) {
1390 fprintf(stderr
, "Failed to re-arm win32 alarm timer %ld\n",
1393 timeEndPeriod(data
->period
);
1400 static int init_timer_alarm(void)
1402 struct qemu_alarm_timer
*t
= NULL
;
1405 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1406 t
= &alarm_timers
[i
];
1426 static void quit_timers(void)
1428 alarm_timer
->stop(alarm_timer
);
1432 /***********************************************************/
1433 /* host time/date access */
1434 void qemu_get_timedate(struct tm
*tm
, int offset
)
1441 if (rtc_date_offset
== -1) {
1445 ret
= localtime(&ti
);
1447 ti
-= rtc_date_offset
;
1451 memcpy(tm
, ret
, sizeof(struct tm
));
1454 int qemu_timedate_diff(struct tm
*tm
)
1458 if (rtc_date_offset
== -1)
1460 seconds
= mktimegm(tm
);
1462 seconds
= mktime(tm
);
1464 seconds
= mktimegm(tm
) + rtc_date_offset
;
1466 return seconds
- time(NULL
);
1469 static void configure_rtc_date_offset(const char *startdate
, int legacy
)
1471 time_t rtc_start_date
;
1474 if (!strcmp(startdate
, "now") && legacy
) {
1475 rtc_date_offset
= -1;
1477 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d",
1485 } else if (sscanf(startdate
, "%d-%d-%d",
1488 &tm
.tm_mday
) == 3) {
1497 rtc_start_date
= mktimegm(&tm
);
1498 if (rtc_start_date
== -1) {
1500 fprintf(stderr
, "Invalid date format. Valid formats are:\n"
1501 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1504 rtc_date_offset
= time(NULL
) - rtc_start_date
;
1508 static void configure_rtc(QemuOpts
*opts
)
1512 value
= qemu_opt_get(opts
, "base");
1514 if (!strcmp(value
, "utc")) {
1516 } else if (!strcmp(value
, "localtime")) {
1519 configure_rtc_date_offset(value
, 0);
1522 value
= qemu_opt_get(opts
, "clock");
1524 if (!strcmp(value
, "host")) {
1525 rtc_clock
= host_clock
;
1526 } else if (!strcmp(value
, "vm")) {
1527 rtc_clock
= vm_clock
;
1529 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1533 #ifdef CONFIG_TARGET_I386
1534 value
= qemu_opt_get(opts
, "driftfix");
1536 if (!strcmp(buf
, "slew")) {
1538 } else if (!strcmp(buf
, "none")) {
1541 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1549 static void socket_cleanup(void)
1554 static int socket_init(void)
1559 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
1561 err
= WSAGetLastError();
1562 fprintf(stderr
, "WSAStartup: %d\n", err
);
1565 atexit(socket_cleanup
);
1570 /***********************************************************/
1571 /* Bluetooth support */
1574 static struct HCIInfo
*hci_table
[MAX_NICS
];
1576 static struct bt_vlan_s
{
1577 struct bt_scatternet_s net
;
1579 struct bt_vlan_s
*next
;
1582 /* find or alloc a new bluetooth "VLAN" */
1583 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1585 struct bt_vlan_s
**pvlan
, *vlan
;
1586 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1590 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1592 pvlan
= &first_bt_vlan
;
1593 while (*pvlan
!= NULL
)
1594 pvlan
= &(*pvlan
)->next
;
1599 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1603 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1608 static struct HCIInfo null_hci
= {
1609 .cmd_send
= null_hci_send
,
1610 .sco_send
= null_hci_send
,
1611 .acl_send
= null_hci_send
,
1612 .bdaddr_set
= null_hci_addr_set
,
1615 struct HCIInfo
*qemu_next_hci(void)
1617 if (cur_hci
== nb_hcis
)
1620 return hci_table
[cur_hci
++];
1623 static struct HCIInfo
*hci_init(const char *str
)
1626 struct bt_scatternet_s
*vlan
= 0;
1628 if (!strcmp(str
, "null"))
1631 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1633 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1634 else if (!strncmp(str
, "hci", 3)) {
1637 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1638 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1643 vlan
= qemu_find_bt_vlan(0);
1645 return bt_new_hci(vlan
);
1648 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1653 static int bt_hci_parse(const char *str
)
1655 struct HCIInfo
*hci
;
1658 if (nb_hcis
>= MAX_NICS
) {
1659 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1663 hci
= hci_init(str
);
1672 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1673 hci
->bdaddr_set(hci
, bdaddr
.b
);
1675 hci_table
[nb_hcis
++] = hci
;
1680 static void bt_vhci_add(int vlan_id
)
1682 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1685 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1686 "an empty scatternet %i\n", vlan_id
);
1688 bt_vhci_init(bt_new_hci(vlan
));
1691 static struct bt_device_s
*bt_device_add(const char *opt
)
1693 struct bt_scatternet_s
*vlan
;
1695 char *endp
= strstr(opt
, ",vlan=");
1696 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1699 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1702 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1704 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1709 vlan
= qemu_find_bt_vlan(vlan_id
);
1712 fprintf(stderr
, "qemu: warning: adding a slave device to "
1713 "an empty scatternet %i\n", vlan_id
);
1715 if (!strcmp(devname
, "keyboard"))
1716 return bt_keyboard_init(vlan
);
1718 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1722 static int bt_parse(const char *opt
)
1724 const char *endp
, *p
;
1727 if (strstart(opt
, "hci", &endp
)) {
1728 if (!*endp
|| *endp
== ',') {
1730 if (!strstart(endp
, ",vlan=", 0))
1733 return bt_hci_parse(opt
);
1735 } else if (strstart(opt
, "vhci", &endp
)) {
1736 if (!*endp
|| *endp
== ',') {
1738 if (strstart(endp
, ",vlan=", &p
)) {
1739 vlan
= strtol(p
, (char **) &endp
, 0);
1741 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1745 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1754 } else if (strstart(opt
, "device:", &endp
))
1755 return !bt_device_add(endp
);
1757 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1761 /***********************************************************/
1762 /* QEMU Block devices */
1764 #define HD_ALIAS "index=%d,media=disk"
1765 #define CDROM_ALIAS "index=2,media=cdrom"
1766 #define FD_ALIAS "index=%d,if=floppy"
1767 #define PFLASH_ALIAS "if=pflash"
1768 #define MTD_ALIAS "if=mtd"
1769 #define SD_ALIAS "index=0,if=sd"
1771 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
1778 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
1781 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, NULL
);
1783 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
1784 __FUNCTION__
, optstr
);
1788 qemu_opt_set(opts
, "file", file
);
1792 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
1796 /* seek interface, bus and unit */
1798 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1799 if (dinfo
->type
== type
&&
1800 dinfo
->bus
== bus
&&
1801 dinfo
->unit
== unit
)
1808 DriveInfo
*drive_get_by_id(const char *id
)
1812 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1813 if (strcmp(id
, dinfo
->id
))
1820 int drive_get_max_bus(BlockInterfaceType type
)
1826 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1827 if(dinfo
->type
== type
&&
1828 dinfo
->bus
> max_bus
)
1829 max_bus
= dinfo
->bus
;
1834 const char *drive_get_serial(BlockDriverState
*bdrv
)
1838 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1839 if (dinfo
->bdrv
== bdrv
)
1840 return dinfo
->serial
;
1846 BlockInterfaceErrorAction
drive_get_on_error(
1847 BlockDriverState
*bdrv
, int is_read
)
1851 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1852 if (dinfo
->bdrv
== bdrv
)
1853 return is_read
? dinfo
->on_read_error
: dinfo
->on_write_error
;
1856 return is_read
? BLOCK_ERR_REPORT
: BLOCK_ERR_STOP_ENOSPC
;
1859 static void bdrv_format_print(void *opaque
, const char *name
)
1861 fprintf(stderr
, " %s", name
);
1864 void drive_uninit(DriveInfo
*dinfo
)
1866 qemu_opts_del(dinfo
->opts
);
1867 bdrv_delete(dinfo
->bdrv
);
1868 QTAILQ_REMOVE(&drives
, dinfo
, next
);
1872 static int parse_block_error_action(const char *buf
, int is_read
)
1874 if (!strcmp(buf
, "ignore")) {
1875 return BLOCK_ERR_IGNORE
;
1876 } else if (!is_read
&& !strcmp(buf
, "enospc")) {
1877 return BLOCK_ERR_STOP_ENOSPC
;
1878 } else if (!strcmp(buf
, "stop")) {
1879 return BLOCK_ERR_STOP_ANY
;
1880 } else if (!strcmp(buf
, "report")) {
1881 return BLOCK_ERR_REPORT
;
1883 fprintf(stderr
, "qemu: '%s' invalid %s error action\n",
1884 buf
, is_read
? "read" : "write");
1889 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
1893 const char *file
= NULL
;
1896 const char *mediastr
= "";
1897 BlockInterfaceType type
;
1898 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
1899 int bus_id
, unit_id
;
1900 int cyls
, heads
, secs
, translation
;
1901 BlockDriver
*drv
= NULL
;
1902 QEMUMachine
*machine
= opaque
;
1909 int on_read_error
, on_write_error
;
1910 const char *devaddr
;
1916 translation
= BIOS_ATA_TRANSLATION_AUTO
;
1919 if (machine
&& machine
->use_scsi
) {
1921 max_devs
= MAX_SCSI_DEVS
;
1922 pstrcpy(devname
, sizeof(devname
), "scsi");
1925 max_devs
= MAX_IDE_DEVS
;
1926 pstrcpy(devname
, sizeof(devname
), "ide");
1930 /* extract parameters */
1931 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
1932 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
1933 index
= qemu_opt_get_number(opts
, "index", -1);
1935 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
1936 heads
= qemu_opt_get_number(opts
, "heads", 0);
1937 secs
= qemu_opt_get_number(opts
, "secs", 0);
1939 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
1940 ro
= qemu_opt_get_bool(opts
, "readonly", 0);
1942 file
= qemu_opt_get(opts
, "file");
1943 serial
= qemu_opt_get(opts
, "serial");
1945 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
1946 pstrcpy(devname
, sizeof(devname
), buf
);
1947 if (!strcmp(buf
, "ide")) {
1949 max_devs
= MAX_IDE_DEVS
;
1950 } else if (!strcmp(buf
, "scsi")) {
1952 max_devs
= MAX_SCSI_DEVS
;
1953 } else if (!strcmp(buf
, "floppy")) {
1956 } else if (!strcmp(buf
, "pflash")) {
1959 } else if (!strcmp(buf
, "mtd")) {
1962 } else if (!strcmp(buf
, "sd")) {
1965 } else if (!strcmp(buf
, "virtio")) {
1968 } else if (!strcmp(buf
, "xen")) {
1971 } else if (!strcmp(buf
, "none")) {
1975 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
1980 if (cyls
|| heads
|| secs
) {
1981 if (cyls
< 1 || (type
== IF_IDE
&& cyls
> 16383)) {
1982 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
1985 if (heads
< 1 || (type
== IF_IDE
&& heads
> 16)) {
1986 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
1989 if (secs
< 1 || (type
== IF_IDE
&& secs
> 63)) {
1990 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
1995 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
1998 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2002 if (!strcmp(buf
, "none"))
2003 translation
= BIOS_ATA_TRANSLATION_NONE
;
2004 else if (!strcmp(buf
, "lba"))
2005 translation
= BIOS_ATA_TRANSLATION_LBA
;
2006 else if (!strcmp(buf
, "auto"))
2007 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2009 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
2014 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
2015 if (!strcmp(buf
, "disk")) {
2017 } else if (!strcmp(buf
, "cdrom")) {
2018 if (cyls
|| secs
|| heads
) {
2020 "qemu: '%s' invalid physical CHS format\n", buf
);
2023 media
= MEDIA_CDROM
;
2025 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
2030 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
2031 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2033 else if (!strcmp(buf
, "writethrough"))
2035 else if (!strcmp(buf
, "writeback"))
2038 fprintf(stderr
, "qemu: invalid cache option\n");
2043 #ifdef CONFIG_LINUX_AIO
2044 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
2045 if (!strcmp(buf
, "threads"))
2047 else if (!strcmp(buf
, "native"))
2050 fprintf(stderr
, "qemu: invalid aio option\n");
2056 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
2057 if (strcmp(buf
, "?") == 0) {
2058 fprintf(stderr
, "qemu: Supported formats:");
2059 bdrv_iterate_format(bdrv_format_print
, NULL
);
2060 fprintf(stderr
, "\n");
2063 drv
= bdrv_find_whitelisted_format(buf
);
2065 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2070 on_write_error
= BLOCK_ERR_STOP_ENOSPC
;
2071 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
2072 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2073 fprintf(stderr
, "werror is no supported by this format\n");
2077 on_write_error
= parse_block_error_action(buf
, 0);
2078 if (on_write_error
< 0) {
2083 on_read_error
= BLOCK_ERR_REPORT
;
2084 if ((buf
= qemu_opt_get(opts
, "rerror")) != NULL
) {
2085 if (type
!= IF_IDE
&& type
!= IF_VIRTIO
) {
2086 fprintf(stderr
, "rerror is no supported by this format\n");
2090 on_read_error
= parse_block_error_action(buf
, 1);
2091 if (on_read_error
< 0) {
2096 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
2097 if (type
!= IF_VIRTIO
) {
2098 fprintf(stderr
, "addr is not supported\n");
2103 /* compute bus and unit according index */
2106 if (bus_id
!= 0 || unit_id
!= -1) {
2108 "qemu: index cannot be used with bus and unit\n");
2116 unit_id
= index
% max_devs
;
2117 bus_id
= index
/ max_devs
;
2121 /* if user doesn't specify a unit_id,
2122 * try to find the first free
2125 if (unit_id
== -1) {
2127 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2129 if (max_devs
&& unit_id
>= max_devs
) {
2130 unit_id
-= max_devs
;
2138 if (max_devs
&& unit_id
>= max_devs
) {
2139 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
2140 unit_id
, max_devs
- 1);
2145 * ignore multiple definitions
2148 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2155 dinfo
= qemu_mallocz(sizeof(*dinfo
));
2156 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
2157 dinfo
->id
= qemu_strdup(buf
);
2159 /* no id supplied -> create one */
2160 dinfo
->id
= qemu_mallocz(32);
2161 if (type
== IF_IDE
|| type
== IF_SCSI
)
2162 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2164 snprintf(dinfo
->id
, 32, "%s%i%s%i",
2165 devname
, bus_id
, mediastr
, unit_id
);
2167 snprintf(dinfo
->id
, 32, "%s%s%i",
2168 devname
, mediastr
, unit_id
);
2170 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
2171 dinfo
->devaddr
= devaddr
;
2173 dinfo
->bus
= bus_id
;
2174 dinfo
->unit
= unit_id
;
2175 dinfo
->on_read_error
= on_read_error
;
2176 dinfo
->on_write_error
= on_write_error
;
2179 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
2180 QTAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
2190 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
2191 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
2195 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
2200 /* FIXME: This isn't really a floppy, but it's a reasonable
2203 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
2209 /* add virtio block device */
2210 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
2211 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
2212 qemu_opt_set(opts
, "drive", dinfo
->id
);
2214 qemu_opt_set(opts
, "addr", devaddr
);
2225 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2226 cache
= 2; /* always use write-back with snapshot */
2228 if (cache
== 0) /* no caching */
2229 bdrv_flags
|= BDRV_O_NOCACHE
;
2230 else if (cache
== 2) /* write-back */
2231 bdrv_flags
|= BDRV_O_CACHE_WB
;
2234 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
2236 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
2240 if (type
!= IF_SCSI
&& type
!= IF_VIRTIO
&& type
!= IF_FLOPPY
) {
2241 fprintf(stderr
, "qemu: readonly flag not supported for drive with this interface\n");
2246 * cdrom is read-only. Set it now, after above interface checking
2247 * since readonly attribute not explicitly required, so no error.
2249 if (media
== MEDIA_CDROM
) {
2252 bdrv_flags
|= ro
? 0 : BDRV_O_RDWR
;
2254 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
2255 fprintf(stderr
, "qemu: could not open disk image %s: %s\n",
2256 file
, strerror(errno
));
2260 if (bdrv_key_required(dinfo
->bdrv
))
2266 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
2268 QEMUMachine
*machine
= opaque
;
2269 int fatal_error
= 0;
2271 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
2278 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
2280 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
2281 qemu_opt_set(opts
, "snapshot", "on");
2286 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
2288 boot_set_handler
= func
;
2289 boot_set_opaque
= opaque
;
2292 int qemu_boot_set(const char *boot_devices
)
2294 if (!boot_set_handler
) {
2297 return boot_set_handler(boot_set_opaque
, boot_devices
);
2300 static int parse_bootdevices(char *devices
)
2302 /* We just do some generic consistency checks */
2306 for (p
= devices
; *p
!= '\0'; p
++) {
2307 /* Allowed boot devices are:
2308 * a-b: floppy disk drives
2309 * c-f: IDE disk drives
2310 * g-m: machine implementation dependant drives
2311 * n-p: network devices
2312 * It's up to each machine implementation to check if the given boot
2313 * devices match the actual hardware implementation and firmware
2316 if (*p
< 'a' || *p
> 'p') {
2317 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2320 if (bitmap
& (1 << (*p
- 'a'))) {
2321 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2324 bitmap
|= 1 << (*p
- 'a');
2329 static void restore_boot_devices(void *opaque
)
2331 char *standard_boot_devices
= opaque
;
2333 qemu_boot_set(standard_boot_devices
);
2335 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
2336 qemu_free(standard_boot_devices
);
2339 static void numa_add(const char *optarg
)
2343 unsigned long long value
, endvalue
;
2346 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2347 if (!strcmp(option
, "node")) {
2348 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2349 nodenr
= nb_numa_nodes
;
2351 nodenr
= strtoull(option
, NULL
, 10);
2354 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2355 node_mem
[nodenr
] = 0;
2357 value
= strtoull(option
, &endptr
, 0);
2359 case 0: case 'M': case 'm':
2366 node_mem
[nodenr
] = value
;
2368 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2369 node_cpumask
[nodenr
] = 0;
2371 value
= strtoull(option
, &endptr
, 10);
2374 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2376 if (*endptr
== '-') {
2377 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2378 if (endvalue
>= 63) {
2381 "only 63 CPUs in NUMA mode supported.\n");
2383 value
= (1 << (endvalue
+ 1)) - (1 << value
);
2388 node_cpumask
[nodenr
] = value
;
2395 static void smp_parse(const char *optarg
)
2397 int smp
, sockets
= 0, threads
= 0, cores
= 0;
2401 smp
= strtoul(optarg
, &endptr
, 10);
2402 if (endptr
!= optarg
) {
2403 if (*endptr
== ',') {
2407 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
2408 sockets
= strtoull(option
, NULL
, 10);
2409 if (get_param_value(option
, 128, "cores", endptr
) != 0)
2410 cores
= strtoull(option
, NULL
, 10);
2411 if (get_param_value(option
, 128, "threads", endptr
) != 0)
2412 threads
= strtoull(option
, NULL
, 10);
2413 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
2414 max_cpus
= strtoull(option
, NULL
, 10);
2416 /* compute missing values, prefer sockets over cores over threads */
2417 if (smp
== 0 || sockets
== 0) {
2418 sockets
= sockets
> 0 ? sockets
: 1;
2419 cores
= cores
> 0 ? cores
: 1;
2420 threads
= threads
> 0 ? threads
: 1;
2422 smp
= cores
* threads
* sockets
;
2426 threads
= threads
> 0 ? threads
: 1;
2427 cores
= smp
/ (sockets
* threads
);
2430 threads
= smp
/ (cores
* sockets
);
2435 smp_cores
= cores
> 0 ? cores
: 1;
2436 smp_threads
= threads
> 0 ? threads
: 1;
2438 max_cpus
= smp_cpus
;
2441 /***********************************************************/
2444 static int usb_device_add(const char *devname
, int is_hotplug
)
2447 USBDevice
*dev
= NULL
;
2452 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2453 dev
= usbdevice_create(devname
);
2457 /* the other ones */
2458 if (strstart(devname
, "host:", &p
)) {
2459 dev
= usb_host_device_open(p
);
2460 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2461 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2462 bt_new_hci(qemu_find_bt_vlan(0)));
2473 static int usb_device_del(const char *devname
)
2478 if (strstart(devname
, "host:", &p
))
2479 return usb_host_device_close(p
);
2484 p
= strchr(devname
, '.');
2487 bus_num
= strtoul(devname
, NULL
, 0);
2488 addr
= strtoul(p
+ 1, NULL
, 0);
2490 return usb_device_delete_addr(bus_num
, addr
);
2493 static int usb_parse(const char *cmdline
)
2496 r
= usb_device_add(cmdline
, 0);
2498 fprintf(stderr
, "qemu: could not add USB device '%s'\n", cmdline
);
2503 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
2505 const char *devname
= qdict_get_str(qdict
, "devname");
2506 if (usb_device_add(devname
, 1) < 0) {
2507 qemu_error("could not add USB device '%s'\n", devname
);
2511 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
2513 const char *devname
= qdict_get_str(qdict
, "devname");
2514 if (usb_device_del(devname
) < 0) {
2515 qemu_error("could not delete USB device '%s'\n", devname
);
2519 /***********************************************************/
2520 /* PCMCIA/Cardbus */
2522 static struct pcmcia_socket_entry_s
{
2523 PCMCIASocket
*socket
;
2524 struct pcmcia_socket_entry_s
*next
;
2525 } *pcmcia_sockets
= 0;
2527 void pcmcia_socket_register(PCMCIASocket
*socket
)
2529 struct pcmcia_socket_entry_s
*entry
;
2531 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2532 entry
->socket
= socket
;
2533 entry
->next
= pcmcia_sockets
;
2534 pcmcia_sockets
= entry
;
2537 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2539 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2541 ptr
= &pcmcia_sockets
;
2542 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2543 if (entry
->socket
== socket
) {
2549 void pcmcia_info(Monitor
*mon
)
2551 struct pcmcia_socket_entry_s
*iter
;
2553 if (!pcmcia_sockets
)
2554 monitor_printf(mon
, "No PCMCIA sockets\n");
2556 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2557 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2558 iter
->socket
->attached
? iter
->socket
->card_string
:
2562 /***********************************************************/
2563 /* register display */
2565 struct DisplayAllocator default_allocator
= {
2566 defaultallocator_create_displaysurface
,
2567 defaultallocator_resize_displaysurface
,
2568 defaultallocator_free_displaysurface
2571 void register_displaystate(DisplayState
*ds
)
2581 DisplayState
*get_displaystate(void)
2583 return display_state
;
2586 DisplayAllocator
*register_displayallocator(DisplayState
*ds
, DisplayAllocator
*da
)
2588 if(ds
->allocator
== &default_allocator
) ds
->allocator
= da
;
2589 return ds
->allocator
;
2594 static void dumb_display_init(void)
2596 DisplayState
*ds
= qemu_mallocz(sizeof(DisplayState
));
2597 ds
->allocator
= &default_allocator
;
2598 ds
->surface
= qemu_create_displaysurface(ds
, 640, 480);
2599 register_displaystate(ds
);
2602 /***********************************************************/
2605 typedef struct IOHandlerRecord
{
2607 IOCanRWHandler
*fd_read_poll
;
2609 IOHandler
*fd_write
;
2612 /* temporary data */
2614 struct IOHandlerRecord
*next
;
2617 static IOHandlerRecord
*first_io_handler
;
2619 /* XXX: fd_read_poll should be suppressed, but an API change is
2620 necessary in the character devices to suppress fd_can_read(). */
2621 int qemu_set_fd_handler2(int fd
,
2622 IOCanRWHandler
*fd_read_poll
,
2624 IOHandler
*fd_write
,
2627 IOHandlerRecord
**pioh
, *ioh
;
2629 if (!fd_read
&& !fd_write
) {
2630 pioh
= &first_io_handler
;
2635 if (ioh
->fd
== fd
) {
2642 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2646 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2647 ioh
->next
= first_io_handler
;
2648 first_io_handler
= ioh
;
2651 ioh
->fd_read_poll
= fd_read_poll
;
2652 ioh
->fd_read
= fd_read
;
2653 ioh
->fd_write
= fd_write
;
2654 ioh
->opaque
= opaque
;
2660 int qemu_set_fd_handler(int fd
,
2662 IOHandler
*fd_write
,
2665 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2669 /***********************************************************/
2670 /* Polling handling */
2672 typedef struct PollingEntry
{
2675 struct PollingEntry
*next
;
2678 static PollingEntry
*first_polling_entry
;
2680 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2682 PollingEntry
**ppe
, *pe
;
2683 pe
= qemu_mallocz(sizeof(PollingEntry
));
2685 pe
->opaque
= opaque
;
2686 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2691 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2693 PollingEntry
**ppe
, *pe
;
2694 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2696 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2704 /***********************************************************/
2705 /* Wait objects support */
2706 typedef struct WaitObjects
{
2708 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2709 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2710 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2713 static WaitObjects wait_objects
= {0};
2715 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2717 WaitObjects
*w
= &wait_objects
;
2719 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2721 w
->events
[w
->num
] = handle
;
2722 w
->func
[w
->num
] = func
;
2723 w
->opaque
[w
->num
] = opaque
;
2728 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2731 WaitObjects
*w
= &wait_objects
;
2734 for (i
= 0; i
< w
->num
; i
++) {
2735 if (w
->events
[i
] == handle
)
2738 w
->events
[i
] = w
->events
[i
+ 1];
2739 w
->func
[i
] = w
->func
[i
+ 1];
2740 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2748 /***********************************************************/
2749 /* ram save/restore */
2751 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2752 #define RAM_SAVE_FLAG_COMPRESS 0x02
2753 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2754 #define RAM_SAVE_FLAG_PAGE 0x08
2755 #define RAM_SAVE_FLAG_EOS 0x10
2757 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2759 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2760 uint32_t *array
= (uint32_t *)page
;
2763 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2764 if (array
[i
] != val
)
2771 static int ram_save_block(QEMUFile
*f
)
2773 static ram_addr_t current_addr
= 0;
2774 ram_addr_t saved_addr
= current_addr
;
2775 ram_addr_t addr
= 0;
2778 while (addr
< last_ram_offset
) {
2779 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
2782 cpu_physical_memory_reset_dirty(current_addr
,
2783 current_addr
+ TARGET_PAGE_SIZE
,
2784 MIGRATION_DIRTY_FLAG
);
2786 p
= qemu_get_ram_ptr(current_addr
);
2788 if (is_dup_page(p
, *p
)) {
2789 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
2790 qemu_put_byte(f
, *p
);
2792 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
2793 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
2799 addr
+= TARGET_PAGE_SIZE
;
2800 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
2806 static uint64_t bytes_transferred
;
2808 static ram_addr_t
ram_save_remaining(void)
2811 ram_addr_t count
= 0;
2813 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2814 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2821 uint64_t ram_bytes_remaining(void)
2823 return ram_save_remaining() * TARGET_PAGE_SIZE
;
2826 uint64_t ram_bytes_transferred(void)
2828 return bytes_transferred
;
2831 uint64_t ram_bytes_total(void)
2833 return last_ram_offset
;
2836 static int ram_save_live(Monitor
*mon
, QEMUFile
*f
, int stage
, void *opaque
)
2839 uint64_t bytes_transferred_last
;
2841 uint64_t expected_time
= 0;
2844 cpu_physical_memory_set_dirty_tracking(0);
2848 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
2849 qemu_file_set_error(f
);
2854 bytes_transferred
= 0;
2856 /* Make sure all dirty bits are set */
2857 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2858 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2859 cpu_physical_memory_set_dirty(addr
);
2862 /* Enable dirty memory tracking */
2863 cpu_physical_memory_set_dirty_tracking(1);
2865 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
2868 bytes_transferred_last
= bytes_transferred
;
2869 bwidth
= get_clock();
2871 while (!qemu_file_rate_limit(f
)) {
2874 ret
= ram_save_block(f
);
2875 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
2876 if (ret
== 0) /* no more blocks */
2880 bwidth
= get_clock() - bwidth
;
2881 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
2883 /* if we haven't transferred anything this round, force expected_time to a
2884 * a very high value, but without crashing */
2888 /* try transferring iterative blocks of memory */
2890 /* flush all remaining blocks regardless of rate limiting */
2891 while (ram_save_block(f
) != 0) {
2892 bytes_transferred
+= TARGET_PAGE_SIZE
;
2894 cpu_physical_memory_set_dirty_tracking(0);
2897 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
2899 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
2901 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
2904 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
2909 if (version_id
!= 3)
2913 addr
= qemu_get_be64(f
);
2915 flags
= addr
& ~TARGET_PAGE_MASK
;
2916 addr
&= TARGET_PAGE_MASK
;
2918 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
2919 if (addr
!= last_ram_offset
)
2923 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
2924 uint8_t ch
= qemu_get_byte(f
);
2925 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
2928 (!kvm_enabled() || kvm_has_sync_mmu())) {
2929 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
2932 } else if (flags
& RAM_SAVE_FLAG_PAGE
) {
2933 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
2935 if (qemu_file_has_error(f
)) {
2938 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
2943 void qemu_service_io(void)
2945 qemu_notify_event();
2948 /***********************************************************/
2949 /* machine registration */
2951 static QEMUMachine
*first_machine
= NULL
;
2952 QEMUMachine
*current_machine
= NULL
;
2954 int qemu_register_machine(QEMUMachine
*m
)
2957 pm
= &first_machine
;
2965 static QEMUMachine
*find_machine(const char *name
)
2969 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
2970 if (!strcmp(m
->name
, name
))
2972 if (m
->alias
&& !strcmp(m
->alias
, name
))
2978 static QEMUMachine
*find_default_machine(void)
2982 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
2983 if (m
->is_default
) {
2990 /***********************************************************/
2991 /* main execution loop */
2993 static void gui_update(void *opaque
)
2995 uint64_t interval
= GUI_REFRESH_INTERVAL
;
2996 DisplayState
*ds
= opaque
;
2997 DisplayChangeListener
*dcl
= ds
->listeners
;
3001 while (dcl
!= NULL
) {
3002 if (dcl
->gui_timer_interval
&&
3003 dcl
->gui_timer_interval
< interval
)
3004 interval
= dcl
->gui_timer_interval
;
3007 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3010 static void nographic_update(void *opaque
)
3012 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3014 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3017 struct vm_change_state_entry
{
3018 VMChangeStateHandler
*cb
;
3020 QLIST_ENTRY (vm_change_state_entry
) entries
;
3023 static QLIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3025 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3028 VMChangeStateEntry
*e
;
3030 e
= qemu_mallocz(sizeof (*e
));
3034 QLIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3038 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3040 QLIST_REMOVE (e
, entries
);
3044 static void vm_state_notify(int running
, int reason
)
3046 VMChangeStateEntry
*e
;
3048 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3049 e
->cb(e
->opaque
, running
, reason
);
3053 static void resume_all_vcpus(void);
3054 static void pause_all_vcpus(void);
3061 vm_state_notify(1, 0);
3062 qemu_rearm_alarm_timer(alarm_timer
);
3067 /* reset/shutdown handler */
3069 typedef struct QEMUResetEntry
{
3070 QTAILQ_ENTRY(QEMUResetEntry
) entry
;
3071 QEMUResetHandler
*func
;
3075 static QTAILQ_HEAD(reset_handlers
, QEMUResetEntry
) reset_handlers
=
3076 QTAILQ_HEAD_INITIALIZER(reset_handlers
);
3077 static int reset_requested
;
3078 static int shutdown_requested
;
3079 static int powerdown_requested
;
3080 static int debug_requested
;
3081 static int vmstop_requested
;
3083 int qemu_shutdown_requested(void)
3085 int r
= shutdown_requested
;
3086 shutdown_requested
= 0;
3090 int qemu_reset_requested(void)
3092 int r
= reset_requested
;
3093 reset_requested
= 0;
3097 int qemu_powerdown_requested(void)
3099 int r
= powerdown_requested
;
3100 powerdown_requested
= 0;
3104 static int qemu_debug_requested(void)
3106 int r
= debug_requested
;
3107 debug_requested
= 0;
3111 static int qemu_vmstop_requested(void)
3113 int r
= vmstop_requested
;
3114 vmstop_requested
= 0;
3118 static void do_vm_stop(int reason
)
3121 cpu_disable_ticks();
3124 vm_state_notify(0, reason
);
3128 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3130 QEMUResetEntry
*re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3133 re
->opaque
= opaque
;
3134 QTAILQ_INSERT_TAIL(&reset_handlers
, re
, entry
);
3137 void qemu_unregister_reset(QEMUResetHandler
*func
, void *opaque
)
3141 QTAILQ_FOREACH(re
, &reset_handlers
, entry
) {
3142 if (re
->func
== func
&& re
->opaque
== opaque
) {
3143 QTAILQ_REMOVE(&reset_handlers
, re
, entry
);
3150 void qemu_system_reset(void)
3152 QEMUResetEntry
*re
, *nre
;
3154 /* reset all devices */
3155 QTAILQ_FOREACH_SAFE(re
, &reset_handlers
, entry
, nre
) {
3156 re
->func(re
->opaque
);
3160 void qemu_system_reset_request(void)
3163 shutdown_requested
= 1;
3165 reset_requested
= 1;
3167 qemu_notify_event();
3170 void qemu_system_shutdown_request(void)
3172 shutdown_requested
= 1;
3173 qemu_notify_event();
3176 void qemu_system_powerdown_request(void)
3178 powerdown_requested
= 1;
3179 qemu_notify_event();
3182 #ifdef CONFIG_IOTHREAD
3183 static void qemu_system_vmstop_request(int reason
)
3185 vmstop_requested
= reason
;
3186 qemu_notify_event();
3191 static int io_thread_fd
= -1;
3193 static void qemu_event_increment(void)
3195 static const char byte
= 0;
3198 if (io_thread_fd
== -1)
3201 ret
= write(io_thread_fd
, &byte
, sizeof(byte
));
3202 if (ret
< 0 && (errno
!= EINTR
&& errno
!= EAGAIN
)) {
3203 fprintf(stderr
, "qemu_event_increment: write() filed: %s\n",
3209 static void qemu_event_read(void *opaque
)
3211 int fd
= (unsigned long)opaque
;
3214 /* Drain the notify pipe */
3217 len
= read(fd
, buffer
, sizeof(buffer
));
3218 } while ((len
== -1 && errno
== EINTR
) || len
> 0);
3221 static int qemu_event_init(void)
3226 err
= qemu_pipe(fds
);
3230 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3234 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3238 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3239 (void *)(unsigned long)fds
[0]);
3241 io_thread_fd
= fds
[1];
3250 HANDLE qemu_event_handle
;
3252 static void dummy_event_handler(void *opaque
)
3256 static int qemu_event_init(void)
3258 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3259 if (!qemu_event_handle
) {
3260 fprintf(stderr
, "Failed CreateEvent: %ld\n", GetLastError());
3263 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3267 static void qemu_event_increment(void)
3269 if (!SetEvent(qemu_event_handle
)) {
3270 fprintf(stderr
, "qemu_event_increment: SetEvent failed: %ld\n",
3277 static int cpu_can_run(CPUState
*env
)
3286 #ifndef CONFIG_IOTHREAD
3287 static int qemu_init_main_loop(void)
3289 return qemu_event_init();
3292 void qemu_init_vcpu(void *_env
)
3294 CPUState
*env
= _env
;
3296 env
->nr_cores
= smp_cores
;
3297 env
->nr_threads
= smp_threads
;
3303 int qemu_cpu_self(void *env
)
3308 static void resume_all_vcpus(void)
3312 static void pause_all_vcpus(void)
3316 void qemu_cpu_kick(void *env
)
3321 void qemu_notify_event(void)
3323 CPUState
*env
= cpu_single_env
;
3330 void qemu_mutex_lock_iothread(void) {}
3331 void qemu_mutex_unlock_iothread(void) {}
3333 void vm_stop(int reason
)
3338 #else /* CONFIG_IOTHREAD */
3340 #include "qemu-thread.h"
3342 QemuMutex qemu_global_mutex
;
3343 static QemuMutex qemu_fair_mutex
;
3345 static QemuThread io_thread
;
3347 static QemuThread
*tcg_cpu_thread
;
3348 static QemuCond
*tcg_halt_cond
;
3350 static int qemu_system_ready
;
3352 static QemuCond qemu_cpu_cond
;
3354 static QemuCond qemu_system_cond
;
3355 static QemuCond qemu_pause_cond
;
3357 static void block_io_signals(void);
3358 static void unblock_io_signals(void);
3359 static int tcg_has_work(void);
3361 static int qemu_init_main_loop(void)
3365 ret
= qemu_event_init();
3369 qemu_cond_init(&qemu_pause_cond
);
3370 qemu_mutex_init(&qemu_fair_mutex
);
3371 qemu_mutex_init(&qemu_global_mutex
);
3372 qemu_mutex_lock(&qemu_global_mutex
);
3374 unblock_io_signals();
3375 qemu_thread_self(&io_thread
);
3380 static void qemu_wait_io_event(CPUState
*env
)
3382 while (!tcg_has_work())
3383 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3385 qemu_mutex_unlock(&qemu_global_mutex
);
3388 * Users of qemu_global_mutex can be starved, having no chance
3389 * to acquire it since this path will get to it first.
3390 * So use another lock to provide fairness.
3392 qemu_mutex_lock(&qemu_fair_mutex
);
3393 qemu_mutex_unlock(&qemu_fair_mutex
);
3395 qemu_mutex_lock(&qemu_global_mutex
);
3399 qemu_cond_signal(&qemu_pause_cond
);
3403 static int qemu_cpu_exec(CPUState
*env
);
3405 static void *kvm_cpu_thread_fn(void *arg
)
3407 CPUState
*env
= arg
;
3410 qemu_thread_self(env
->thread
);
3414 /* signal CPU creation */
3415 qemu_mutex_lock(&qemu_global_mutex
);
3417 qemu_cond_signal(&qemu_cpu_cond
);
3419 /* and wait for machine initialization */
3420 while (!qemu_system_ready
)
3421 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3424 if (cpu_can_run(env
))
3426 qemu_wait_io_event(env
);
3432 static void tcg_cpu_exec(void);
3434 static void *tcg_cpu_thread_fn(void *arg
)
3436 CPUState
*env
= arg
;
3439 qemu_thread_self(env
->thread
);
3441 /* signal CPU creation */
3442 qemu_mutex_lock(&qemu_global_mutex
);
3443 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3445 qemu_cond_signal(&qemu_cpu_cond
);
3447 /* and wait for machine initialization */
3448 while (!qemu_system_ready
)
3449 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3453 qemu_wait_io_event(cur_cpu
);
3459 void qemu_cpu_kick(void *_env
)
3461 CPUState
*env
= _env
;
3462 qemu_cond_broadcast(env
->halt_cond
);
3464 qemu_thread_signal(env
->thread
, SIGUSR1
);
3467 int qemu_cpu_self(void *_env
)
3469 CPUState
*env
= _env
;
3472 qemu_thread_self(&this);
3474 return qemu_thread_equal(&this, env
->thread
);
3477 static void cpu_signal(int sig
)
3480 cpu_exit(cpu_single_env
);
3483 static void block_io_signals(void)
3486 struct sigaction sigact
;
3489 sigaddset(&set
, SIGUSR2
);
3490 sigaddset(&set
, SIGIO
);
3491 sigaddset(&set
, SIGALRM
);
3492 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3495 sigaddset(&set
, SIGUSR1
);
3496 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3498 memset(&sigact
, 0, sizeof(sigact
));
3499 sigact
.sa_handler
= cpu_signal
;
3500 sigaction(SIGUSR1
, &sigact
, NULL
);
3503 static void unblock_io_signals(void)
3508 sigaddset(&set
, SIGUSR2
);
3509 sigaddset(&set
, SIGIO
);
3510 sigaddset(&set
, SIGALRM
);
3511 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3514 sigaddset(&set
, SIGUSR1
);
3515 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3518 static void qemu_signal_lock(unsigned int msecs
)
3520 qemu_mutex_lock(&qemu_fair_mutex
);
3522 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3523 qemu_thread_signal(tcg_cpu_thread
, SIGUSR1
);
3524 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3527 qemu_mutex_unlock(&qemu_fair_mutex
);
3530 void qemu_mutex_lock_iothread(void)
3532 if (kvm_enabled()) {
3533 qemu_mutex_lock(&qemu_fair_mutex
);
3534 qemu_mutex_lock(&qemu_global_mutex
);
3535 qemu_mutex_unlock(&qemu_fair_mutex
);
3537 qemu_signal_lock(100);
3540 void qemu_mutex_unlock_iothread(void)
3542 qemu_mutex_unlock(&qemu_global_mutex
);
3545 static int all_vcpus_paused(void)
3547 CPUState
*penv
= first_cpu
;
3552 penv
= (CPUState
*)penv
->next_cpu
;
3558 static void pause_all_vcpus(void)
3560 CPUState
*penv
= first_cpu
;
3564 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3565 qemu_cpu_kick(penv
);
3566 penv
= (CPUState
*)penv
->next_cpu
;
3569 while (!all_vcpus_paused()) {
3570 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3573 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3574 penv
= (CPUState
*)penv
->next_cpu
;
3579 static void resume_all_vcpus(void)
3581 CPUState
*penv
= first_cpu
;
3586 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3587 qemu_cpu_kick(penv
);
3588 penv
= (CPUState
*)penv
->next_cpu
;
3592 static void tcg_init_vcpu(void *_env
)
3594 CPUState
*env
= _env
;
3595 /* share a single thread for all cpus with TCG */
3596 if (!tcg_cpu_thread
) {
3597 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3598 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3599 qemu_cond_init(env
->halt_cond
);
3600 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3601 while (env
->created
== 0)
3602 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3603 tcg_cpu_thread
= env
->thread
;
3604 tcg_halt_cond
= env
->halt_cond
;
3606 env
->thread
= tcg_cpu_thread
;
3607 env
->halt_cond
= tcg_halt_cond
;
3611 static void kvm_start_vcpu(CPUState
*env
)
3613 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3614 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3615 qemu_cond_init(env
->halt_cond
);
3616 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3617 while (env
->created
== 0)
3618 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3621 void qemu_init_vcpu(void *_env
)
3623 CPUState
*env
= _env
;
3625 env
->nr_cores
= smp_cores
;
3626 env
->nr_threads
= smp_threads
;
3628 kvm_start_vcpu(env
);
3633 void qemu_notify_event(void)
3635 qemu_event_increment();
3638 void vm_stop(int reason
)
3641 qemu_thread_self(&me
);
3643 if (!qemu_thread_equal(&me
, &io_thread
)) {
3644 qemu_system_vmstop_request(reason
);
3646 * FIXME: should not return to device code in case
3647 * vm_stop() has been requested.
3649 if (cpu_single_env
) {
3650 cpu_exit(cpu_single_env
);
3651 cpu_single_env
->stop
= 1;
3662 static void host_main_loop_wait(int *timeout
)
3668 /* XXX: need to suppress polling by better using win32 events */
3670 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
3671 ret
|= pe
->func(pe
->opaque
);
3675 WaitObjects
*w
= &wait_objects
;
3677 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
3678 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
3679 if (w
->func
[ret
- WAIT_OBJECT_0
])
3680 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
3682 /* Check for additional signaled events */
3683 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
3685 /* Check if event is signaled */
3686 ret2
= WaitForSingleObject(w
->events
[i
], 0);
3687 if(ret2
== WAIT_OBJECT_0
) {
3689 w
->func
[i
](w
->opaque
[i
]);
3690 } else if (ret2
== WAIT_TIMEOUT
) {
3692 err
= GetLastError();
3693 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
3696 } else if (ret
== WAIT_TIMEOUT
) {
3698 err
= GetLastError();
3699 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
3706 static void host_main_loop_wait(int *timeout
)
3711 void main_loop_wait(int timeout
)
3713 IOHandlerRecord
*ioh
;
3714 fd_set rfds
, wfds
, xfds
;
3718 qemu_bh_update_timeout(&timeout
);
3720 host_main_loop_wait(&timeout
);
3722 /* poll any events */
3723 /* XXX: separate device handlers from system ones */
3728 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3732 (!ioh
->fd_read_poll
||
3733 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
3734 FD_SET(ioh
->fd
, &rfds
);
3738 if (ioh
->fd_write
) {
3739 FD_SET(ioh
->fd
, &wfds
);
3745 tv
.tv_sec
= timeout
/ 1000;
3746 tv
.tv_usec
= (timeout
% 1000) * 1000;
3748 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
3750 qemu_mutex_unlock_iothread();
3751 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
3752 qemu_mutex_lock_iothread();
3754 IOHandlerRecord
**pioh
;
3756 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3757 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
3758 ioh
->fd_read(ioh
->opaque
);
3760 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
3761 ioh
->fd_write(ioh
->opaque
);
3765 /* remove deleted IO handlers */
3766 pioh
= &first_io_handler
;
3777 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
3779 /* rearm timer, if not periodic */
3780 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
3781 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
3782 qemu_rearm_alarm_timer(alarm_timer
);
3785 /* vm time timers */
3787 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
3788 qemu_run_timers(&active_timers
[QEMU_CLOCK_VIRTUAL
],
3789 qemu_get_clock(vm_clock
));
3792 /* real time timers */
3793 qemu_run_timers(&active_timers
[QEMU_CLOCK_REALTIME
],
3794 qemu_get_clock(rt_clock
));
3796 qemu_run_timers(&active_timers
[QEMU_CLOCK_HOST
],
3797 qemu_get_clock(host_clock
));
3799 /* Check bottom-halves last in case any of the earlier events triggered
3805 static int qemu_cpu_exec(CPUState
*env
)
3808 #ifdef CONFIG_PROFILER
3812 #ifdef CONFIG_PROFILER
3813 ti
= profile_getclock();
3818 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
3819 env
->icount_decr
.u16
.low
= 0;
3820 env
->icount_extra
= 0;
3821 count
= qemu_next_deadline();
3822 count
= (count
+ (1 << icount_time_shift
) - 1)
3823 >> icount_time_shift
;
3824 qemu_icount
+= count
;
3825 decr
= (count
> 0xffff) ? 0xffff : count
;
3827 env
->icount_decr
.u16
.low
= decr
;
3828 env
->icount_extra
= count
;
3830 ret
= cpu_exec(env
);
3831 #ifdef CONFIG_PROFILER
3832 qemu_time
+= profile_getclock() - ti
;
3835 /* Fold pending instructions back into the
3836 instruction counter, and clear the interrupt flag. */
3837 qemu_icount
-= (env
->icount_decr
.u16
.low
3838 + env
->icount_extra
);
3839 env
->icount_decr
.u32
= 0;
3840 env
->icount_extra
= 0;
3845 static void tcg_cpu_exec(void)
3849 if (next_cpu
== NULL
)
3850 next_cpu
= first_cpu
;
3851 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
3852 CPUState
*env
= cur_cpu
= next_cpu
;
3856 if (timer_alarm_pending
) {
3857 timer_alarm_pending
= 0;
3860 if (cpu_can_run(env
))
3861 ret
= qemu_cpu_exec(env
);
3862 if (ret
== EXCP_DEBUG
) {
3863 gdb_set_stop_cpu(env
);
3864 debug_requested
= 1;
3870 static int cpu_has_work(CPUState
*env
)
3878 if (qemu_cpu_has_work(env
))
3883 static int tcg_has_work(void)
3887 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3888 if (cpu_has_work(env
))
3893 static int qemu_calculate_timeout(void)
3895 #ifndef CONFIG_IOTHREAD
3900 else if (tcg_has_work())
3902 else if (!use_icount
)
3905 /* XXX: use timeout computed from timers */
3908 /* Advance virtual time to the next event. */
3909 if (use_icount
== 1) {
3910 /* When not using an adaptive execution frequency
3911 we tend to get badly out of sync with real time,
3912 so just delay for a reasonable amount of time. */
3915 delta
= cpu_get_icount() - cpu_get_clock();
3918 /* If virtual time is ahead of real time then just
3920 timeout
= (delta
/ 1000000) + 1;
3922 /* Wait for either IO to occur or the next
3924 add
= qemu_next_deadline();
3925 /* We advance the timer before checking for IO.
3926 Limit the amount we advance so that early IO
3927 activity won't get the guest too far ahead. */
3931 add
= (add
+ (1 << icount_time_shift
) - 1)
3932 >> icount_time_shift
;
3934 timeout
= delta
/ 1000000;
3941 #else /* CONFIG_IOTHREAD */
3946 static int vm_can_run(void)
3948 if (powerdown_requested
)
3950 if (reset_requested
)
3952 if (shutdown_requested
)
3954 if (debug_requested
)
3959 qemu_irq qemu_system_powerdown
;
3961 static void main_loop(void)
3965 #ifdef CONFIG_IOTHREAD
3966 qemu_system_ready
= 1;
3967 qemu_cond_broadcast(&qemu_system_cond
);
3972 #ifdef CONFIG_PROFILER
3975 #ifndef CONFIG_IOTHREAD
3978 #ifdef CONFIG_PROFILER
3979 ti
= profile_getclock();
3981 main_loop_wait(qemu_calculate_timeout());
3982 #ifdef CONFIG_PROFILER
3983 dev_time
+= profile_getclock() - ti
;
3985 } while (vm_can_run());
3987 if (qemu_debug_requested()) {
3988 monitor_protocol_event(QEVENT_DEBUG
, NULL
);
3989 vm_stop(EXCP_DEBUG
);
3991 if (qemu_shutdown_requested()) {
3992 monitor_protocol_event(QEVENT_SHUTDOWN
, NULL
);
3999 if (qemu_reset_requested()) {
4000 monitor_protocol_event(QEVENT_RESET
, NULL
);
4002 qemu_system_reset();
4005 if (qemu_powerdown_requested()) {
4006 monitor_protocol_event(QEVENT_POWERDOWN
, NULL
);
4007 qemu_irq_raise(qemu_system_powerdown
);
4009 if ((r
= qemu_vmstop_requested())) {
4010 monitor_protocol_event(QEVENT_STOP
, NULL
);
4017 static void version(void)
4019 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4022 static void help(int exitcode
)
4025 printf("usage: %s [options] [disk_image]\n"
4027 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4029 #define DEF(option, opt_arg, opt_enum, opt_help) \
4031 #define DEFHEADING(text) stringify(text) "\n"
4032 #include "qemu-options.h"
4037 "During emulation, the following keys are useful:\n"
4038 "ctrl-alt-f toggle full screen\n"
4039 "ctrl-alt-n switch to virtual console 'n'\n"
4040 "ctrl-alt toggle mouse and keyboard grab\n"
4042 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4047 DEFAULT_NETWORK_SCRIPT
,
4048 DEFAULT_NETWORK_DOWN_SCRIPT
,
4050 DEFAULT_GDBSTUB_PORT
,
4055 #define HAS_ARG 0x0001
4058 #define DEF(option, opt_arg, opt_enum, opt_help) \
4060 #define DEFHEADING(text)
4061 #include "qemu-options.h"
4067 typedef struct QEMUOption
{
4073 static const QEMUOption qemu_options
[] = {
4074 { "h", 0, QEMU_OPTION_h
},
4075 #define DEF(option, opt_arg, opt_enum, opt_help) \
4076 { option, opt_arg, opt_enum },
4077 #define DEFHEADING(text)
4078 #include "qemu-options.h"
4086 struct soundhw soundhw
[] = {
4087 #ifdef HAS_AUDIO_CHOICE
4088 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4094 { .init_isa
= pcspk_audio_init
}
4101 "Creative Sound Blaster 16",
4104 { .init_isa
= SB16_init
}
4108 #ifdef CONFIG_CS4231A
4114 { .init_isa
= cs4231a_init
}
4122 "Yamaha YMF262 (OPL3)",
4124 "Yamaha YM3812 (OPL2)",
4128 { .init_isa
= Adlib_init
}
4135 "Gravis Ultrasound GF1",
4138 { .init_isa
= GUS_init
}
4145 "Intel 82801AA AC97 Audio",
4148 { .init_pci
= ac97_init
}
4152 #ifdef CONFIG_ES1370
4155 "ENSONIQ AudioPCI ES1370",
4158 { .init_pci
= es1370_init
}
4162 #endif /* HAS_AUDIO_CHOICE */
4164 { NULL
, NULL
, 0, 0, { NULL
} }
4167 static void select_soundhw (const char *optarg
)
4171 if (*optarg
== '?') {
4174 printf ("Valid sound card names (comma separated):\n");
4175 for (c
= soundhw
; c
->name
; ++c
) {
4176 printf ("%-11s %s\n", c
->name
, c
->descr
);
4178 printf ("\n-soundhw all will enable all of the above\n");
4179 exit (*optarg
!= '?');
4187 if (!strcmp (optarg
, "all")) {
4188 for (c
= soundhw
; c
->name
; ++c
) {
4196 e
= strchr (p
, ',');
4197 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4199 for (c
= soundhw
; c
->name
; ++c
) {
4200 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
4209 "Unknown sound card name (too big to show)\n");
4212 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4217 p
+= l
+ (e
!= NULL
);
4221 goto show_valid_cards
;
4226 static void select_vgahw (const char *p
)
4231 vga_interface_type
= VGA_NONE
;
4232 if (strstart(p
, "std", &opts
)) {
4233 vga_interface_type
= VGA_STD
;
4234 } else if (strstart(p
, "cirrus", &opts
)) {
4235 vga_interface_type
= VGA_CIRRUS
;
4236 } else if (strstart(p
, "vmware", &opts
)) {
4237 vga_interface_type
= VGA_VMWARE
;
4238 } else if (strstart(p
, "xenfb", &opts
)) {
4239 vga_interface_type
= VGA_XENFB
;
4240 } else if (!strstart(p
, "none", &opts
)) {
4242 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4246 const char *nextopt
;
4248 if (strstart(opts
, ",retrace=", &nextopt
)) {
4250 if (strstart(opts
, "dumb", &nextopt
))
4251 vga_retrace_method
= VGA_RETRACE_DUMB
;
4252 else if (strstart(opts
, "precise", &nextopt
))
4253 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4254 else goto invalid_vga
;
4255 } else goto invalid_vga
;
4261 static int balloon_parse(const char *arg
)
4265 if (strcmp(arg
, "none") == 0) {
4269 if (!strncmp(arg
, "virtio", 6)) {
4270 if (arg
[6] == ',') {
4271 /* have params -> parse them */
4272 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, NULL
);
4276 /* create empty opts */
4277 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4279 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
4288 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4290 exit(STATUS_CONTROL_C_EXIT
);
4295 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4299 if(strlen(str
) != 36)
4302 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4303 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4304 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4310 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4318 static void termsig_handler(int signal
)
4320 qemu_system_shutdown_request();
4323 static void sigchld_handler(int signal
)
4325 waitpid(-1, NULL
, WNOHANG
);
4328 static void sighandler_setup(void)
4330 struct sigaction act
;
4332 memset(&act
, 0, sizeof(act
));
4333 act
.sa_handler
= termsig_handler
;
4334 sigaction(SIGINT
, &act
, NULL
);
4335 sigaction(SIGHUP
, &act
, NULL
);
4336 sigaction(SIGTERM
, &act
, NULL
);
4338 act
.sa_handler
= sigchld_handler
;
4339 act
.sa_flags
= SA_NOCLDSTOP
;
4340 sigaction(SIGCHLD
, &act
, NULL
);
4346 /* Look for support files in the same directory as the executable. */
4347 static char *find_datadir(const char *argv0
)
4353 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4360 while (p
!= buf
&& *p
!= '\\')
4363 if (access(buf
, R_OK
) == 0) {
4364 return qemu_strdup(buf
);
4370 /* Find a likely location for support files using the location of the binary.
4371 For installed binaries this will be "$bindir/../share/qemu". When
4372 running from the build tree this will be "$bindir/../pc-bios". */
4373 #define SHARE_SUFFIX "/share/qemu"
4374 #define BUILD_SUFFIX "/pc-bios"
4375 static char *find_datadir(const char *argv0
)
4383 #if defined(__linux__)
4386 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4392 #elif defined(__FreeBSD__)
4395 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4402 /* If we don't have any way of figuring out the actual executable
4403 location then try argv[0]. */
4405 p
= realpath(argv0
, buf
);
4413 max_len
= strlen(dir
) +
4414 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4415 res
= qemu_mallocz(max_len
);
4416 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4417 if (access(res
, R_OK
)) {
4418 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4419 if (access(res
, R_OK
)) {
4431 char *qemu_find_file(int type
, const char *name
)
4437 /* If name contains path separators then try it as a straight path. */
4438 if ((strchr(name
, '/') || strchr(name
, '\\'))
4439 && access(name
, R_OK
) == 0) {
4440 return qemu_strdup(name
);
4443 case QEMU_FILE_TYPE_BIOS
:
4446 case QEMU_FILE_TYPE_KEYMAP
:
4447 subdir
= "keymaps/";
4452 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4453 buf
= qemu_mallocz(len
);
4454 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4455 if (access(buf
, R_OK
)) {
4462 static int device_init_func(QemuOpts
*opts
, void *opaque
)
4466 dev
= qdev_device_add(opts
);
4472 static int chardev_init_func(QemuOpts
*opts
, void *opaque
)
4474 CharDriverState
*chr
;
4476 chr
= qemu_chr_open_opts(opts
, NULL
);
4482 static int mon_init_func(QemuOpts
*opts
, void *opaque
)
4484 CharDriverState
*chr
;
4485 const char *chardev
;
4489 mode
= qemu_opt_get(opts
, "mode");
4493 if (strcmp(mode
, "readline") == 0) {
4494 flags
= MONITOR_USE_READLINE
;
4495 } else if (strcmp(mode
, "control") == 0) {
4496 flags
= MONITOR_USE_CONTROL
;
4498 fprintf(stderr
, "unknown monitor mode \"%s\"\n", mode
);
4502 if (qemu_opt_get_bool(opts
, "default", 0))
4503 flags
|= MONITOR_IS_DEFAULT
;
4505 chardev
= qemu_opt_get(opts
, "chardev");
4506 chr
= qemu_chr_find(chardev
);
4508 fprintf(stderr
, "chardev \"%s\" not found\n", chardev
);
4512 monitor_init(chr
, flags
);
4516 static void monitor_parse(const char *optarg
, const char *mode
)
4518 static int monitor_device_index
= 0;
4524 if (strstart(optarg
, "chardev:", &p
)) {
4525 snprintf(label
, sizeof(label
), "%s", p
);
4527 if (monitor_device_index
) {
4528 snprintf(label
, sizeof(label
), "monitor%d",
4529 monitor_device_index
);
4531 snprintf(label
, sizeof(label
), "monitor");
4534 opts
= qemu_chr_parse_compat(label
, optarg
);
4536 fprintf(stderr
, "parse error: %s\n", optarg
);
4541 opts
= qemu_opts_create(&qemu_mon_opts
, label
, 1);
4543 fprintf(stderr
, "duplicate chardev: %s\n", label
);
4546 qemu_opt_set(opts
, "mode", mode
);
4547 qemu_opt_set(opts
, "chardev", label
);
4549 qemu_opt_set(opts
, "default", "on");
4550 monitor_device_index
++;
4553 struct device_config
{
4555 DEV_USB
, /* -usbdevice */
4557 DEV_SERIAL
, /* -serial */
4558 DEV_PARALLEL
, /* -parallel */
4559 DEV_VIRTCON
, /* -virtioconsole */
4560 DEV_DEBUGCON
, /* -debugcon */
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 static int serial_parse(const char *devname
)
4594 static int index
= 0;
4597 if (strcmp(devname
, "none") == 0)
4599 if (index
== MAX_SERIAL_PORTS
) {
4600 fprintf(stderr
, "qemu: too many serial ports\n");
4603 snprintf(label
, sizeof(label
), "serial%d", index
);
4604 serial_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4605 if (!serial_hds
[index
]) {
4606 fprintf(stderr
, "qemu: could not open serial device '%s': %s\n",
4607 devname
, strerror(errno
));
4614 static int parallel_parse(const char *devname
)
4616 static int index
= 0;
4619 if (strcmp(devname
, "none") == 0)
4621 if (index
== MAX_PARALLEL_PORTS
) {
4622 fprintf(stderr
, "qemu: too many parallel ports\n");
4625 snprintf(label
, sizeof(label
), "parallel%d", index
);
4626 parallel_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4627 if (!parallel_hds
[index
]) {
4628 fprintf(stderr
, "qemu: could not open parallel device '%s': %s\n",
4629 devname
, strerror(errno
));
4636 static int virtcon_parse(const char *devname
)
4638 static int index
= 0;
4640 QemuOpts
*bus_opts
, *dev_opts
;
4642 if (strcmp(devname
, "none") == 0)
4644 if (index
== MAX_VIRTIO_CONSOLES
) {
4645 fprintf(stderr
, "qemu: too many virtio consoles\n");
4649 bus_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4650 qemu_opt_set(bus_opts
, "driver", "virtio-serial");
4652 dev_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4653 qemu_opt_set(dev_opts
, "driver", "virtconsole");
4655 snprintf(label
, sizeof(label
), "virtcon%d", index
);
4656 virtcon_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4657 if (!virtcon_hds
[index
]) {
4658 fprintf(stderr
, "qemu: could not open virtio console '%s': %s\n",
4659 devname
, strerror(errno
));
4662 qemu_opt_set(dev_opts
, "chardev", label
);
4668 static int debugcon_parse(const char *devname
)
4672 if (!qemu_chr_open("debugcon", devname
, NULL
)) {
4675 opts
= qemu_opts_create(&qemu_device_opts
, "debugcon", 1);
4677 fprintf(stderr
, "qemu: already have a debugcon device\n");
4680 qemu_opt_set(opts
, "driver", "isa-debugcon");
4681 qemu_opt_set(opts
, "chardev", "debugcon");
4685 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
4686 const char **poptarg
, int *poptind
)
4688 const QEMUOption
*popt
;
4689 int optind
= *poptind
;
4690 char *r
= argv
[optind
];
4694 /* Treat --foo the same as -foo. */
4697 popt
= qemu_options
;
4700 fprintf(stderr
, "%s: invalid option -- '%s'\n",
4704 if (!strcmp(popt
->name
, r
+ 1))
4708 if (popt
->flags
& HAS_ARG
) {
4709 if (optind
>= argc
) {
4710 fprintf(stderr
, "%s: option '%s' requires an argument\n",
4714 optarg
= argv
[optind
++];
4725 int main(int argc
, char **argv
, char **envp
)
4727 const char *gdbstub_dev
= NULL
;
4728 uint32_t boot_devices_bitmap
= 0;
4730 int snapshot
, linux_boot
, net_boot
;
4731 const char *initrd_filename
;
4732 const char *kernel_filename
, *kernel_cmdline
;
4733 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4735 DisplayChangeListener
*dcl
;
4736 int cyls
, heads
, secs
, translation
;
4737 QemuOpts
*hda_opts
= NULL
, *opts
;
4740 const char *loadvm
= NULL
;
4741 QEMUMachine
*machine
;
4742 const char *cpu_model
;
4747 const char *pid_file
= NULL
;
4748 const char *incoming
= NULL
;
4751 struct passwd
*pwd
= NULL
;
4752 const char *chroot_dir
= NULL
;
4753 const char *run_as
= NULL
;
4756 int show_vnc_port
= 0;
4761 qemu_errors_to_file(stderr
);
4762 qemu_cache_utils_init(envp
);
4764 QLIST_INIT (&vm_change_state_head
);
4767 struct sigaction act
;
4768 sigfillset(&act
.sa_mask
);
4770 act
.sa_handler
= SIG_IGN
;
4771 sigaction(SIGPIPE
, &act
, NULL
);
4774 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4775 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4776 QEMU to run on a single CPU */
4781 h
= GetCurrentProcess();
4782 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4783 for(i
= 0; i
< 32; i
++) {
4784 if (mask
& (1 << i
))
4789 SetProcessAffinityMask(h
, mask
);
4795 module_call_init(MODULE_INIT_MACHINE
);
4796 machine
= find_default_machine();
4798 initrd_filename
= NULL
;
4801 kernel_filename
= NULL
;
4802 kernel_cmdline
= "";
4803 cyls
= heads
= secs
= 0;
4804 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4806 for (i
= 0; i
< MAX_NODES
; i
++) {
4808 node_cpumask
[i
] = 0;
4817 /* first pass of option parsing */
4819 while (optind
< argc
) {
4820 if (argv
[optind
][0] != '-') {
4824 const QEMUOption
*popt
;
4826 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
4827 switch (popt
->index
) {
4828 case QEMU_OPTION_nodefconfig
:
4837 fp
= fopen(CONFIG_QEMU_CONFDIR
"/qemu.conf", "r");
4839 if (qemu_config_parse(fp
) != 0) {
4845 fp
= fopen(CONFIG_QEMU_CONFDIR
"/target-" TARGET_ARCH
".conf", "r");
4847 if (qemu_config_parse(fp
) != 0) {
4854 /* second pass of option parsing */
4859 if (argv
[optind
][0] != '-') {
4860 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4862 const QEMUOption
*popt
;
4864 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
4865 switch(popt
->index
) {
4867 machine
= find_machine(optarg
);
4870 printf("Supported machines are:\n");
4871 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4873 printf("%-10s %s (alias of %s)\n",
4874 m
->alias
, m
->desc
, m
->name
);
4875 printf("%-10s %s%s\n",
4877 m
->is_default
? " (default)" : "");
4879 exit(*optarg
!= '?');
4882 case QEMU_OPTION_cpu
:
4883 /* hw initialization will check this */
4884 if (*optarg
== '?') {
4885 /* XXX: implement xxx_cpu_list for targets that still miss it */
4886 #if defined(cpu_list)
4887 cpu_list(stdout
, &fprintf
);
4894 case QEMU_OPTION_initrd
:
4895 initrd_filename
= optarg
;
4897 case QEMU_OPTION_hda
:
4899 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
4901 hda_opts
= drive_add(optarg
, HD_ALIAS
4902 ",cyls=%d,heads=%d,secs=%d%s",
4903 0, cyls
, heads
, secs
,
4904 translation
== BIOS_ATA_TRANSLATION_LBA
?
4906 translation
== BIOS_ATA_TRANSLATION_NONE
?
4907 ",trans=none" : "");
4909 case QEMU_OPTION_hdb
:
4910 case QEMU_OPTION_hdc
:
4911 case QEMU_OPTION_hdd
:
4912 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
4914 case QEMU_OPTION_drive
:
4915 drive_add(NULL
, "%s", optarg
);
4917 case QEMU_OPTION_set
:
4918 if (qemu_set_option(optarg
) != 0)
4921 case QEMU_OPTION_global
:
4922 if (qemu_global_option(optarg
) != 0)
4925 case QEMU_OPTION_mtdblock
:
4926 drive_add(optarg
, MTD_ALIAS
);
4928 case QEMU_OPTION_sd
:
4929 drive_add(optarg
, SD_ALIAS
);
4931 case QEMU_OPTION_pflash
:
4932 drive_add(optarg
, PFLASH_ALIAS
);
4934 case QEMU_OPTION_snapshot
:
4937 case QEMU_OPTION_hdachs
:
4941 cyls
= strtol(p
, (char **)&p
, 0);
4942 if (cyls
< 1 || cyls
> 16383)
4947 heads
= strtol(p
, (char **)&p
, 0);
4948 if (heads
< 1 || heads
> 16)
4953 secs
= strtol(p
, (char **)&p
, 0);
4954 if (secs
< 1 || secs
> 63)
4958 if (!strcmp(p
, "none"))
4959 translation
= BIOS_ATA_TRANSLATION_NONE
;
4960 else if (!strcmp(p
, "lba"))
4961 translation
= BIOS_ATA_TRANSLATION_LBA
;
4962 else if (!strcmp(p
, "auto"))
4963 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4966 } else if (*p
!= '\0') {
4968 fprintf(stderr
, "qemu: invalid physical CHS format\n");
4971 if (hda_opts
!= NULL
) {
4973 snprintf(num
, sizeof(num
), "%d", cyls
);
4974 qemu_opt_set(hda_opts
, "cyls", num
);
4975 snprintf(num
, sizeof(num
), "%d", heads
);
4976 qemu_opt_set(hda_opts
, "heads", num
);
4977 snprintf(num
, sizeof(num
), "%d", secs
);
4978 qemu_opt_set(hda_opts
, "secs", num
);
4979 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
4980 qemu_opt_set(hda_opts
, "trans", "lba");
4981 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
4982 qemu_opt_set(hda_opts
, "trans", "none");
4986 case QEMU_OPTION_numa
:
4987 if (nb_numa_nodes
>= MAX_NODES
) {
4988 fprintf(stderr
, "qemu: too many NUMA nodes\n");
4993 case QEMU_OPTION_nographic
:
4994 display_type
= DT_NOGRAPHIC
;
4996 #ifdef CONFIG_CURSES
4997 case QEMU_OPTION_curses
:
4998 display_type
= DT_CURSES
;
5001 case QEMU_OPTION_portrait
:
5004 case QEMU_OPTION_kernel
:
5005 kernel_filename
= optarg
;
5007 case QEMU_OPTION_append
:
5008 kernel_cmdline
= optarg
;
5010 case QEMU_OPTION_cdrom
:
5011 drive_add(optarg
, CDROM_ALIAS
);
5013 case QEMU_OPTION_boot
:
5015 static const char * const params
[] = {
5016 "order", "once", "menu", NULL
5018 char buf
[sizeof(boot_devices
)];
5019 char *standard_boot_devices
;
5022 if (!strchr(optarg
, '=')) {
5024 pstrcpy(buf
, sizeof(buf
), optarg
);
5025 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
5027 "qemu: unknown boot parameter '%s' in '%s'\n",
5033 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
5034 boot_devices_bitmap
= parse_bootdevices(buf
);
5035 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
5038 if (get_param_value(buf
, sizeof(buf
),
5040 boot_devices_bitmap
|= parse_bootdevices(buf
);
5041 standard_boot_devices
= qemu_strdup(boot_devices
);
5042 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
5043 qemu_register_reset(restore_boot_devices
,
5044 standard_boot_devices
);
5046 if (get_param_value(buf
, sizeof(buf
),
5048 if (!strcmp(buf
, "on")) {
5050 } else if (!strcmp(buf
, "off")) {
5054 "qemu: invalid option value '%s'\n",
5062 case QEMU_OPTION_fda
:
5063 case QEMU_OPTION_fdb
:
5064 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
5067 case QEMU_OPTION_no_fd_bootchk
:
5071 case QEMU_OPTION_netdev
:
5072 if (net_client_parse(&qemu_netdev_opts
, optarg
) == -1) {
5076 case QEMU_OPTION_net
:
5077 if (net_client_parse(&qemu_net_opts
, optarg
) == -1) {
5082 case QEMU_OPTION_tftp
:
5083 legacy_tftp_prefix
= optarg
;
5085 case QEMU_OPTION_bootp
:
5086 legacy_bootp_filename
= optarg
;
5089 case QEMU_OPTION_smb
:
5090 if (net_slirp_smb(optarg
) < 0)
5094 case QEMU_OPTION_redir
:
5095 if (net_slirp_redir(optarg
) < 0)
5099 case QEMU_OPTION_bt
:
5100 add_device_config(DEV_BT
, optarg
);
5103 case QEMU_OPTION_audio_help
:
5107 case QEMU_OPTION_soundhw
:
5108 select_soundhw (optarg
);
5114 case QEMU_OPTION_version
:
5118 case QEMU_OPTION_m
: {
5122 value
= strtoul(optarg
, &ptr
, 10);
5124 case 0: case 'M': case 'm':
5131 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5135 /* On 32-bit hosts, QEMU is limited by virtual address space */
5136 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
5137 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5140 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5141 fprintf(stderr
, "qemu: ram size too large\n");
5150 const CPULogItem
*item
;
5152 mask
= cpu_str_to_log_mask(optarg
);
5154 printf("Log items (comma separated):\n");
5155 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5156 printf("%-10s %s\n", item
->name
, item
->help
);
5164 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5166 case QEMU_OPTION_gdb
:
5167 gdbstub_dev
= optarg
;
5172 case QEMU_OPTION_bios
:
5175 case QEMU_OPTION_singlestep
:
5182 keyboard_layout
= optarg
;
5184 case QEMU_OPTION_localtime
:
5187 case QEMU_OPTION_vga
:
5188 select_vgahw (optarg
);
5190 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5196 w
= strtol(p
, (char **)&p
, 10);
5199 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5205 h
= strtol(p
, (char **)&p
, 10);
5210 depth
= strtol(p
, (char **)&p
, 10);
5211 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5212 depth
!= 24 && depth
!= 32)
5214 } else if (*p
== '\0') {
5215 depth
= graphic_depth
;
5222 graphic_depth
= depth
;
5226 case QEMU_OPTION_echr
:
5229 term_escape_char
= strtol(optarg
, &r
, 0);
5231 printf("Bad argument to echr\n");
5234 case QEMU_OPTION_monitor
:
5235 monitor_parse(optarg
, "readline");
5236 default_monitor
= 0;
5238 case QEMU_OPTION_qmp
:
5239 monitor_parse(optarg
, "control");
5240 default_monitor
= 0;
5242 case QEMU_OPTION_mon
:
5243 opts
= qemu_opts_parse(&qemu_mon_opts
, optarg
, "chardev");
5245 fprintf(stderr
, "parse error: %s\n", optarg
);
5248 default_monitor
= 0;
5250 case QEMU_OPTION_chardev
:
5251 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, "backend");
5253 fprintf(stderr
, "parse error: %s\n", optarg
);
5257 case QEMU_OPTION_serial
:
5258 add_device_config(DEV_SERIAL
, optarg
);
5261 case QEMU_OPTION_watchdog
:
5264 "qemu: only one watchdog option may be given\n");
5269 case QEMU_OPTION_watchdog_action
:
5270 if (select_watchdog_action(optarg
) == -1) {
5271 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5275 case QEMU_OPTION_virtiocon
:
5276 add_device_config(DEV_VIRTCON
, optarg
);
5277 default_virtcon
= 0;
5279 case QEMU_OPTION_parallel
:
5280 add_device_config(DEV_PARALLEL
, optarg
);
5281 default_parallel
= 0;
5283 case QEMU_OPTION_debugcon
:
5284 add_device_config(DEV_DEBUGCON
, optarg
);
5286 case QEMU_OPTION_loadvm
:
5289 case QEMU_OPTION_full_screen
:
5293 case QEMU_OPTION_no_frame
:
5296 case QEMU_OPTION_alt_grab
:
5299 case QEMU_OPTION_ctrl_grab
:
5302 case QEMU_OPTION_no_quit
:
5305 case QEMU_OPTION_sdl
:
5306 display_type
= DT_SDL
;
5309 case QEMU_OPTION_pidfile
:
5313 case QEMU_OPTION_win2k_hack
:
5314 win2k_install_hack
= 1;
5316 case QEMU_OPTION_rtc_td_hack
:
5319 case QEMU_OPTION_acpitable
:
5320 if(acpi_table_add(optarg
) < 0) {
5321 fprintf(stderr
, "Wrong acpi table provided\n");
5325 case QEMU_OPTION_smbios
:
5326 if(smbios_entry_add(optarg
) < 0) {
5327 fprintf(stderr
, "Wrong smbios provided\n");
5333 case QEMU_OPTION_enable_kvm
:
5337 case QEMU_OPTION_usb
:
5340 case QEMU_OPTION_usbdevice
:
5342 add_device_config(DEV_USB
, optarg
);
5344 case QEMU_OPTION_device
:
5345 if (!qemu_opts_parse(&qemu_device_opts
, optarg
, "driver")) {
5349 case QEMU_OPTION_smp
:
5352 fprintf(stderr
, "Invalid number of CPUs\n");
5355 if (max_cpus
< smp_cpus
) {
5356 fprintf(stderr
, "maxcpus must be equal to or greater than "
5360 if (max_cpus
> 255) {
5361 fprintf(stderr
, "Unsupported number of maxcpus\n");
5365 case QEMU_OPTION_vnc
:
5366 display_type
= DT_VNC
;
5367 vnc_display
= optarg
;
5370 case QEMU_OPTION_no_acpi
:
5373 case QEMU_OPTION_no_hpet
:
5376 case QEMU_OPTION_balloon
:
5377 if (balloon_parse(optarg
) < 0) {
5378 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5383 case QEMU_OPTION_no_reboot
:
5386 case QEMU_OPTION_no_shutdown
:
5389 case QEMU_OPTION_show_cursor
:
5392 case QEMU_OPTION_uuid
:
5393 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5394 fprintf(stderr
, "Fail to parse UUID string."
5395 " Wrong format.\n");
5400 case QEMU_OPTION_daemonize
:
5404 case QEMU_OPTION_option_rom
:
5405 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5406 fprintf(stderr
, "Too many option ROMs\n");
5409 option_rom
[nb_option_roms
] = optarg
;
5412 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5413 case QEMU_OPTION_semihosting
:
5414 semihosting_enabled
= 1;
5417 case QEMU_OPTION_name
:
5418 qemu_name
= qemu_strdup(optarg
);
5420 char *p
= strchr(qemu_name
, ',');
5423 if (strncmp(p
, "process=", 8)) {
5424 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5432 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5433 case QEMU_OPTION_prom_env
:
5434 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5435 fprintf(stderr
, "Too many prom variables\n");
5438 prom_envs
[nb_prom_envs
] = optarg
;
5443 case QEMU_OPTION_old_param
:
5447 case QEMU_OPTION_clock
:
5448 configure_alarms(optarg
);
5450 case QEMU_OPTION_startdate
:
5451 configure_rtc_date_offset(optarg
, 1);
5453 case QEMU_OPTION_rtc
:
5454 opts
= qemu_opts_parse(&qemu_rtc_opts
, optarg
, NULL
);
5456 fprintf(stderr
, "parse error: %s\n", optarg
);
5459 configure_rtc(opts
);
5461 case QEMU_OPTION_tb_size
:
5462 tb_size
= strtol(optarg
, NULL
, 0);
5466 case QEMU_OPTION_icount
:
5468 if (strcmp(optarg
, "auto") == 0) {
5469 icount_time_shift
= -1;
5471 icount_time_shift
= strtol(optarg
, NULL
, 0);
5474 case QEMU_OPTION_incoming
:
5477 case QEMU_OPTION_nodefaults
:
5479 default_parallel
= 0;
5480 default_virtcon
= 0;
5481 default_monitor
= 0;
5489 case QEMU_OPTION_chroot
:
5490 chroot_dir
= optarg
;
5492 case QEMU_OPTION_runas
:
5497 case QEMU_OPTION_xen_domid
:
5498 xen_domid
= atoi(optarg
);
5500 case QEMU_OPTION_xen_create
:
5501 xen_mode
= XEN_CREATE
;
5503 case QEMU_OPTION_xen_attach
:
5504 xen_mode
= XEN_ATTACH
;
5507 case QEMU_OPTION_readconfig
:
5510 fp
= fopen(optarg
, "r");
5512 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5515 if (qemu_config_parse(fp
) != 0) {
5521 case QEMU_OPTION_writeconfig
:
5524 if (strcmp(optarg
, "-") == 0) {
5527 fp
= fopen(optarg
, "w");
5529 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5533 qemu_config_write(fp
);
5541 /* If no data_dir is specified then try to find it relative to the
5544 data_dir
= find_datadir(argv
[0]);
5546 /* If all else fails use the install patch specified when building. */
5548 data_dir
= CONFIG_QEMU_SHAREDIR
;
5552 * Default to max_cpus = smp_cpus, in case the user doesn't
5553 * specify a max_cpus value.
5556 max_cpus
= smp_cpus
;
5558 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5559 if (smp_cpus
> machine
->max_cpus
) {
5560 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5561 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5566 qemu_opts_foreach(&qemu_device_opts
, default_driver_check
, NULL
, 0);
5567 qemu_opts_foreach(&qemu_global_opts
, default_driver_check
, NULL
, 0);
5569 if (machine
->no_serial
) {
5572 if (machine
->no_parallel
) {
5573 default_parallel
= 0;
5575 if (!machine
->use_virtcon
) {
5576 default_virtcon
= 0;
5578 if (machine
->no_vga
) {
5581 if (machine
->no_floppy
) {
5584 if (machine
->no_cdrom
) {
5587 if (machine
->no_sdcard
) {
5591 if (display_type
== DT_NOGRAPHIC
) {
5592 if (default_parallel
)
5593 add_device_config(DEV_PARALLEL
, "null");
5594 if (default_serial
&& default_monitor
) {
5595 add_device_config(DEV_SERIAL
, "mon:stdio");
5596 } else if (default_virtcon
&& default_monitor
) {
5597 add_device_config(DEV_VIRTCON
, "mon:stdio");
5600 add_device_config(DEV_SERIAL
, "stdio");
5601 if (default_virtcon
)
5602 add_device_config(DEV_VIRTCON
, "stdio");
5603 if (default_monitor
)
5604 monitor_parse("stdio", "readline");
5608 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
5609 if (default_parallel
)
5610 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
5611 if (default_monitor
)
5612 monitor_parse("vc:80Cx24C", "readline");
5613 if (default_virtcon
)
5614 add_device_config(DEV_VIRTCON
, "vc:80Cx24C");
5617 vga_interface_type
= VGA_CIRRUS
;
5619 if (qemu_opts_foreach(&qemu_chardev_opts
, chardev_init_func
, NULL
, 1) != 0)
5626 if (pipe(fds
) == -1)
5637 len
= read(fds
[0], &status
, 1);
5638 if (len
== -1 && (errno
== EINTR
))
5643 else if (status
== 1) {
5644 fprintf(stderr
, "Could not acquire pidfile: %s\n", strerror(errno
));
5652 qemu_set_cloexec(fds
[1]);
5664 signal(SIGTSTP
, SIG_IGN
);
5665 signal(SIGTTOU
, SIG_IGN
);
5666 signal(SIGTTIN
, SIG_IGN
);
5670 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5674 if (write(fds
[1], &status
, 1) != 1) {
5675 perror("daemonize. Writing to pipe\n");
5679 fprintf(stderr
, "Could not acquire pid file: %s\n", strerror(errno
));
5683 if (kvm_enabled()) {
5686 ret
= kvm_init(smp_cpus
);
5688 fprintf(stderr
, "failed to initialize KVM\n");
5693 if (qemu_init_main_loop()) {
5694 fprintf(stderr
, "qemu_init_main_loop failed\n");
5697 linux_boot
= (kernel_filename
!= NULL
);
5699 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5700 fprintf(stderr
, "-append only allowed with -kernel option\n");
5704 if (!linux_boot
&& initrd_filename
!= NULL
) {
5705 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5710 /* Win32 doesn't support line-buffering and requires size >= 2 */
5711 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5714 if (init_timer_alarm() < 0) {
5715 fprintf(stderr
, "could not initialize alarm timer\n");
5718 if (use_icount
&& icount_time_shift
< 0) {
5720 /* 125MIPS seems a reasonable initial guess at the guest speed.
5721 It will be corrected fairly quickly anyway. */
5722 icount_time_shift
= 3;
5723 init_icount_adjust();
5730 if (net_init_clients() < 0) {
5734 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5735 net_set_boot_mask(net_boot
);
5737 /* init the bluetooth world */
5738 if (foreach_device_config(DEV_BT
, bt_parse
))
5741 /* init the memory */
5743 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5745 /* init the dynamic translator */
5746 cpu_exec_init_all(tb_size
* 1024 * 1024);
5748 bdrv_init_with_whitelist();
5752 if (default_cdrom
) {
5753 /* we always create the cdrom drive, even if no disk is there */
5754 drive_add(NULL
, CDROM_ALIAS
);
5757 if (default_floppy
) {
5758 /* we always create at least one floppy */
5759 drive_add(NULL
, FD_ALIAS
, 0);
5762 if (default_sdcard
) {
5763 /* we always create one sd slot, even if no card is in it */
5764 drive_add(NULL
, SD_ALIAS
);
5767 /* open the virtual block devices */
5769 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
5770 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
5773 vmstate_register(0, &vmstate_timers
,&timers_state
);
5774 register_savevm_live("ram", 0, 3, NULL
, ram_save_live
, NULL
,
5777 if (nb_numa_nodes
> 0) {
5780 if (nb_numa_nodes
> smp_cpus
) {
5781 nb_numa_nodes
= smp_cpus
;
5784 /* If no memory size if given for any node, assume the default case
5785 * and distribute the available memory equally across all nodes
5787 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5788 if (node_mem
[i
] != 0)
5791 if (i
== nb_numa_nodes
) {
5792 uint64_t usedmem
= 0;
5794 /* On Linux, the each node's border has to be 8MB aligned,
5795 * the final node gets the rest.
5797 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5798 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5799 usedmem
+= node_mem
[i
];
5801 node_mem
[i
] = ram_size
- usedmem
;
5804 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5805 if (node_cpumask
[i
] != 0)
5808 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5809 * must cope with this anyway, because there are BIOSes out there in
5810 * real machines which also use this scheme.
5812 if (i
== nb_numa_nodes
) {
5813 for (i
= 0; i
< smp_cpus
; i
++) {
5814 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5819 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
5821 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
5823 if (foreach_device_config(DEV_VIRTCON
, virtcon_parse
) < 0)
5825 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
5828 module_call_init(MODULE_INIT_DEVICE
);
5831 i
= select_watchdog(watchdog
);
5833 exit (i
== 1 ? 1 : 0);
5836 if (machine
->compat_props
) {
5837 qdev_prop_register_global_list(machine
->compat_props
);
5841 machine
->init(ram_size
, boot_devices
,
5842 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5846 /* must be after terminal init, SDL library changes signal handlers */
5850 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5851 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5852 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5858 current_machine
= machine
;
5860 /* init USB devices */
5862 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
5866 /* init generic devices */
5867 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
5871 dumb_display_init();
5872 /* just use the first displaystate for the moment */
5875 if (display_type
== DT_DEFAULT
) {
5876 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5877 display_type
= DT_SDL
;
5879 display_type
= DT_VNC
;
5880 vnc_display
= "localhost:0,to=99";
5886 switch (display_type
) {
5889 #if defined(CONFIG_CURSES)
5891 curses_display_init(ds
, full_screen
);
5894 #if defined(CONFIG_SDL)
5896 sdl_display_init(ds
, full_screen
, no_frame
);
5898 #elif defined(CONFIG_COCOA)
5900 cocoa_display_init(ds
, full_screen
);
5904 vnc_display_init(ds
);
5905 if (vnc_display_open(ds
, vnc_display
) < 0)
5908 if (show_vnc_port
) {
5909 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
5917 dcl
= ds
->listeners
;
5918 while (dcl
!= NULL
) {
5919 if (dcl
->dpy_refresh
!= NULL
) {
5920 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
5921 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
5926 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
5927 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
5928 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
5931 text_consoles_set_display(display_state
);
5933 if (qemu_opts_foreach(&qemu_mon_opts
, mon_init_func
, NULL
, 1) != 0)
5936 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
5937 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
5942 qdev_machine_creation_done();
5944 if (rom_load_all() != 0) {
5945 fprintf(stderr
, "rom loading failed\n");
5949 qemu_system_reset();
5951 if (load_vmstate(cur_mon
, loadvm
) < 0) {
5957 qemu_start_incoming_migration(incoming
);
5958 } else if (autostart
) {
5968 len
= write(fds
[1], &status
, 1);
5969 if (len
== -1 && (errno
== EINTR
))
5976 perror("not able to chdir to /");
5979 TFR(fd
= qemu_open("/dev/null", O_RDWR
));
5985 pwd
= getpwnam(run_as
);
5987 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
5993 if (chroot(chroot_dir
) < 0) {
5994 fprintf(stderr
, "chroot failed\n");
5998 perror("not able to chdir to /");
6004 if (setgid(pwd
->pw_gid
) < 0) {
6005 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
6008 if (setuid(pwd
->pw_uid
) < 0) {
6009 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
6012 if (setuid(0) != -1) {
6013 fprintf(stderr
, "Dropping privileges failed\n");