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 DisplayType display_type
= DT_DEFAULT
;
186 const char* keyboard_layout
= NULL
;
188 const char *mem_path
= NULL
;
190 int mem_prealloc
= 0; /* force preallocation of physical target memory */
193 NICInfo nd_table
[MAX_NICS
];
196 static int rtc_utc
= 1;
197 static int rtc_date_offset
= -1; /* -1 means no change */
198 QEMUClock
*rtc_clock
;
199 int vga_interface_type
= VGA_NONE
;
201 int graphic_width
= 1024;
202 int graphic_height
= 768;
203 int graphic_depth
= 8;
205 int graphic_width
= 800;
206 int graphic_height
= 600;
207 int graphic_depth
= 15;
209 static int full_screen
= 0;
211 static int no_frame
= 0;
214 CharDriverState
*serial_hds
[MAX_SERIAL_PORTS
];
215 CharDriverState
*parallel_hds
[MAX_PARALLEL_PORTS
];
216 CharDriverState
*virtcon_hds
[MAX_VIRTIO_CONSOLES
];
218 int win2k_install_hack
= 0;
227 const char *vnc_display
;
228 int acpi_enabled
= 1;
234 int graphic_rotate
= 0;
235 uint8_t irq0override
= 1;
239 const char *watchdog
;
240 const char *option_rom
[MAX_OPTION_ROMS
];
242 int semihosting_enabled
= 0;
246 const char *qemu_name
;
249 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
250 unsigned int nb_prom_envs
= 0;
251 const char *prom_envs
[MAX_PROM_ENVS
];
256 uint64_t node_mem
[MAX_NODES
];
257 uint64_t node_cpumask
[MAX_NODES
];
259 static CPUState
*cur_cpu
;
260 static CPUState
*next_cpu
;
261 static int timer_alarm_pending
= 1;
262 /* Conversion factor from emulated instructions to virtual clock ticks. */
263 static int icount_time_shift
;
264 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
265 #define MAX_ICOUNT_SHIFT 10
266 /* Compensate for varying guest execution speed. */
267 static int64_t qemu_icount_bias
;
268 static QEMUTimer
*icount_rt_timer
;
269 static QEMUTimer
*icount_vm_timer
;
270 static QEMUTimer
*nographic_timer
;
272 uint8_t qemu_uuid
[16];
274 static QEMUBootSetHandler
*boot_set_handler
;
275 static void *boot_set_opaque
;
278 #define SIG_IPI (SIGRTMIN+4)
280 #define SIG_IPI SIGUSR1
283 static int default_serial
= 1;
284 static int default_parallel
= 1;
285 static int default_virtcon
= 1;
286 static int default_monitor
= 1;
287 static int default_vga
= 1;
288 static int default_floppy
= 1;
289 static int default_cdrom
= 1;
290 static int default_sdcard
= 1;
296 { .driver
= "isa-serial", .flag
= &default_serial
},
297 { .driver
= "isa-parallel", .flag
= &default_parallel
},
298 { .driver
= "isa-fdc", .flag
= &default_floppy
},
299 { .driver
= "ide-drive", .flag
= &default_cdrom
},
300 { .driver
= "virtio-serial-pci", .flag
= &default_virtcon
},
301 { .driver
= "virtio-serial-s390", .flag
= &default_virtcon
},
302 { .driver
= "virtio-serial", .flag
= &default_virtcon
},
303 { .driver
= "VGA", .flag
= &default_vga
},
304 { .driver
= "cirrus-vga", .flag
= &default_vga
},
305 { .driver
= "vmware-svga", .flag
= &default_vga
},
308 static int default_driver_check(QemuOpts
*opts
, void *opaque
)
310 const char *driver
= qemu_opt_get(opts
, "driver");
315 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
316 if (strcmp(default_list
[i
].driver
, driver
) != 0)
318 *(default_list
[i
].flag
) = 0;
323 /***********************************************************/
324 /* x86 ISA bus support */
326 target_phys_addr_t isa_mem_base
= 0;
329 /***********************************************************/
330 void hw_error(const char *fmt
, ...)
336 fprintf(stderr
, "qemu: hardware error: ");
337 vfprintf(stderr
, fmt
, ap
);
338 fprintf(stderr
, "\n");
339 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
340 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
342 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
344 cpu_dump_state(env
, stderr
, fprintf
, 0);
351 static void set_proc_name(const char *s
)
353 #if defined(__linux__) && defined(PR_SET_NAME)
357 name
[sizeof(name
) - 1] = 0;
358 strncpy(name
, s
, sizeof(name
));
359 /* Could rewrite argv[0] too, but that's a bit more complicated.
360 This simple way is enough for `top'. */
361 prctl(PR_SET_NAME
, name
);
368 static QEMUBalloonEvent
*qemu_balloon_event
;
369 void *qemu_balloon_event_opaque
;
371 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
373 qemu_balloon_event
= func
;
374 qemu_balloon_event_opaque
= opaque
;
377 int qemu_balloon(ram_addr_t target
, MonitorCompletion cb
, void *opaque
)
379 if (qemu_balloon_event
) {
380 qemu_balloon_event(qemu_balloon_event_opaque
, target
, cb
, opaque
);
387 int qemu_balloon_status(MonitorCompletion cb
, void *opaque
)
389 if (qemu_balloon_event
) {
390 qemu_balloon_event(qemu_balloon_event_opaque
, 0, cb
, opaque
);
398 /***********************************************************/
399 /* real time host monotonic timer */
401 /* compute with 96 bit intermediate result: (a*b)/c */
402 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
407 #ifdef HOST_WORDS_BIGENDIAN
417 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
418 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
421 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
425 static int64_t get_clock_realtime(void)
429 gettimeofday(&tv
, NULL
);
430 return tv
.tv_sec
* 1000000000LL + (tv
.tv_usec
* 1000);
435 static int64_t clock_freq
;
437 static void init_get_clock(void)
441 ret
= QueryPerformanceFrequency(&freq
);
443 fprintf(stderr
, "Could not calibrate ticks\n");
446 clock_freq
= freq
.QuadPart
;
449 static int64_t get_clock(void)
452 QueryPerformanceCounter(&ti
);
453 return muldiv64(ti
.QuadPart
, get_ticks_per_sec(), clock_freq
);
458 static int use_rt_clock
;
460 static void init_get_clock(void)
463 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
464 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
467 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0) {
474 static int64_t get_clock(void)
476 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
477 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
480 clock_gettime(CLOCK_MONOTONIC
, &ts
);
481 return ts
.tv_sec
* 1000000000LL + ts
.tv_nsec
;
485 /* XXX: using gettimeofday leads to problems if the date
486 changes, so it should be avoided. */
487 return get_clock_realtime();
492 /* Return the virtual CPU time, based on the instruction counter. */
493 static int64_t cpu_get_icount(void)
496 CPUState
*env
= cpu_single_env
;;
497 icount
= qemu_icount
;
500 fprintf(stderr
, "Bad clock read\n");
501 icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
503 return qemu_icount_bias
+ (icount
<< icount_time_shift
);
506 /***********************************************************/
507 /* guest cycle counter */
509 typedef struct TimersState
{
510 int64_t cpu_ticks_prev
;
511 int64_t cpu_ticks_offset
;
512 int64_t cpu_clock_offset
;
513 int32_t cpu_ticks_enabled
;
517 TimersState timers_state
;
519 /* return the host CPU cycle counter and handle stop/restart */
520 int64_t cpu_get_ticks(void)
523 return cpu_get_icount();
525 if (!timers_state
.cpu_ticks_enabled
) {
526 return timers_state
.cpu_ticks_offset
;
529 ticks
= cpu_get_real_ticks();
530 if (timers_state
.cpu_ticks_prev
> ticks
) {
531 /* Note: non increasing ticks may happen if the host uses
533 timers_state
.cpu_ticks_offset
+= timers_state
.cpu_ticks_prev
- ticks
;
535 timers_state
.cpu_ticks_prev
= ticks
;
536 return ticks
+ timers_state
.cpu_ticks_offset
;
540 /* return the host CPU monotonic timer and handle stop/restart */
541 static int64_t cpu_get_clock(void)
544 if (!timers_state
.cpu_ticks_enabled
) {
545 return timers_state
.cpu_clock_offset
;
548 return ti
+ timers_state
.cpu_clock_offset
;
552 /* enable cpu_get_ticks() */
553 void cpu_enable_ticks(void)
555 if (!timers_state
.cpu_ticks_enabled
) {
556 timers_state
.cpu_ticks_offset
-= cpu_get_real_ticks();
557 timers_state
.cpu_clock_offset
-= get_clock();
558 timers_state
.cpu_ticks_enabled
= 1;
562 /* disable cpu_get_ticks() : the clock is stopped. You must not call
563 cpu_get_ticks() after that. */
564 void cpu_disable_ticks(void)
566 if (timers_state
.cpu_ticks_enabled
) {
567 timers_state
.cpu_ticks_offset
= cpu_get_ticks();
568 timers_state
.cpu_clock_offset
= cpu_get_clock();
569 timers_state
.cpu_ticks_enabled
= 0;
573 /***********************************************************/
576 #define QEMU_CLOCK_REALTIME 0
577 #define QEMU_CLOCK_VIRTUAL 1
578 #define QEMU_CLOCK_HOST 2
582 /* XXX: add frequency */
590 struct QEMUTimer
*next
;
593 struct qemu_alarm_timer
{
597 int (*start
)(struct qemu_alarm_timer
*t
);
598 void (*stop
)(struct qemu_alarm_timer
*t
);
599 void (*rearm
)(struct qemu_alarm_timer
*t
);
603 #define ALARM_FLAG_DYNTICKS 0x1
604 #define ALARM_FLAG_EXPIRED 0x2
606 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
608 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
611 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
613 if (!alarm_has_dynticks(t
))
619 /* TODO: MIN_TIMER_REARM_US should be optimized */
620 #define MIN_TIMER_REARM_US 250
622 static struct qemu_alarm_timer
*alarm_timer
;
626 struct qemu_alarm_win32
{
629 } alarm_win32_data
= {0, 0};
631 static int win32_start_timer(struct qemu_alarm_timer
*t
);
632 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
633 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
637 static int unix_start_timer(struct qemu_alarm_timer
*t
);
638 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
642 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
643 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
644 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
646 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
647 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
649 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
650 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
652 #endif /* __linux__ */
656 /* Correlation between real and virtual time is always going to be
657 fairly approximate, so ignore small variation.
658 When the guest is idle real and virtual time will be aligned in
660 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
662 static void icount_adjust(void)
667 static int64_t last_delta
;
668 /* If the VM is not running, then do nothing. */
672 cur_time
= cpu_get_clock();
673 cur_icount
= qemu_get_clock(vm_clock
);
674 delta
= cur_icount
- cur_time
;
675 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
677 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
678 && icount_time_shift
> 0) {
679 /* The guest is getting too far ahead. Slow time down. */
683 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
684 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
685 /* The guest is getting too far behind. Speed time up. */
689 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
692 static void icount_adjust_rt(void * opaque
)
694 qemu_mod_timer(icount_rt_timer
,
695 qemu_get_clock(rt_clock
) + 1000);
699 static void icount_adjust_vm(void * opaque
)
701 qemu_mod_timer(icount_vm_timer
,
702 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
706 static void init_icount_adjust(void)
708 /* Have both realtime and virtual time triggers for speed adjustment.
709 The realtime trigger catches emulated time passing too slowly,
710 the virtual time trigger catches emulated time passing too fast.
711 Realtime triggers occur even when idle, so use them less frequently
713 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
714 qemu_mod_timer(icount_rt_timer
,
715 qemu_get_clock(rt_clock
) + 1000);
716 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
717 qemu_mod_timer(icount_vm_timer
,
718 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
721 static struct qemu_alarm_timer alarm_timers
[] = {
724 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
725 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
726 /* HPET - if available - is preferred */
727 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
728 /* ...otherwise try RTC */
729 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
731 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
733 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
734 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
735 {"win32", 0, win32_start_timer
,
736 win32_stop_timer
, NULL
, &alarm_win32_data
},
741 static void show_available_alarms(void)
745 printf("Available alarm timers, in order of precedence:\n");
746 for (i
= 0; alarm_timers
[i
].name
; i
++)
747 printf("%s\n", alarm_timers
[i
].name
);
750 static void configure_alarms(char const *opt
)
754 int count
= ARRAY_SIZE(alarm_timers
) - 1;
757 struct qemu_alarm_timer tmp
;
759 if (!strcmp(opt
, "?")) {
760 show_available_alarms();
764 arg
= qemu_strdup(opt
);
766 /* Reorder the array */
767 name
= strtok(arg
, ",");
769 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
770 if (!strcmp(alarm_timers
[i
].name
, name
))
775 fprintf(stderr
, "Unknown clock %s\n", name
);
784 tmp
= alarm_timers
[i
];
785 alarm_timers
[i
] = alarm_timers
[cur
];
786 alarm_timers
[cur
] = tmp
;
790 name
= strtok(NULL
, ",");
796 /* Disable remaining timers */
797 for (i
= cur
; i
< count
; i
++)
798 alarm_timers
[i
].name
= NULL
;
800 show_available_alarms();
805 #define QEMU_NUM_CLOCKS 3
809 QEMUClock
*host_clock
;
811 static QEMUTimer
*active_timers
[QEMU_NUM_CLOCKS
];
813 static QEMUClock
*qemu_new_clock(int type
)
816 clock
= qemu_mallocz(sizeof(QEMUClock
));
821 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
825 ts
= qemu_mallocz(sizeof(QEMUTimer
));
832 void qemu_free_timer(QEMUTimer
*ts
)
837 /* stop a timer, but do not dealloc it */
838 void qemu_del_timer(QEMUTimer
*ts
)
842 /* NOTE: this code must be signal safe because
843 qemu_timer_expired() can be called from a signal. */
844 pt
= &active_timers
[ts
->clock
->type
];
857 /* modify the current timer so that it will be fired when current_time
858 >= expire_time. The corresponding callback will be called. */
859 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
865 /* add the timer in the sorted list */
866 /* NOTE: this code must be signal safe because
867 qemu_timer_expired() can be called from a signal. */
868 pt
= &active_timers
[ts
->clock
->type
];
873 if (t
->expire_time
> expire_time
)
877 ts
->expire_time
= expire_time
;
881 /* Rearm if necessary */
882 if (pt
== &active_timers
[ts
->clock
->type
]) {
883 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
884 qemu_rearm_alarm_timer(alarm_timer
);
886 /* Interrupt execution to force deadline recalculation. */
892 int qemu_timer_pending(QEMUTimer
*ts
)
895 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
902 int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
906 return (timer_head
->expire_time
<= current_time
);
909 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
915 if (!ts
|| ts
->expire_time
> current_time
)
917 /* remove timer from the list before calling the callback */
918 *ptimer_head
= ts
->next
;
921 /* run the callback (the timer list can be modified) */
926 int64_t qemu_get_clock(QEMUClock
*clock
)
928 switch(clock
->type
) {
929 case QEMU_CLOCK_REALTIME
:
930 return get_clock() / 1000000;
932 case QEMU_CLOCK_VIRTUAL
:
934 return cpu_get_icount();
936 return cpu_get_clock();
938 case QEMU_CLOCK_HOST
:
939 return get_clock_realtime();
943 int64_t qemu_get_clock_ns(QEMUClock
*clock
)
945 switch(clock
->type
) {
946 case QEMU_CLOCK_REALTIME
:
949 case QEMU_CLOCK_VIRTUAL
:
951 return cpu_get_icount();
953 return cpu_get_clock();
955 case QEMU_CLOCK_HOST
:
956 return get_clock_realtime();
960 static void init_clocks(void)
963 rt_clock
= qemu_new_clock(QEMU_CLOCK_REALTIME
);
964 vm_clock
= qemu_new_clock(QEMU_CLOCK_VIRTUAL
);
965 host_clock
= qemu_new_clock(QEMU_CLOCK_HOST
);
967 rtc_clock
= host_clock
;
971 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
973 uint64_t expire_time
;
975 if (qemu_timer_pending(ts
)) {
976 expire_time
= ts
->expire_time
;
980 qemu_put_be64(f
, expire_time
);
983 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
985 uint64_t expire_time
;
987 expire_time
= qemu_get_be64(f
);
988 if (expire_time
!= -1) {
989 qemu_mod_timer(ts
, expire_time
);
995 static const VMStateDescription vmstate_timers
= {
998 .minimum_version_id
= 1,
999 .minimum_version_id_old
= 1,
1000 .fields
= (VMStateField
[]) {
1001 VMSTATE_INT64(cpu_ticks_offset
, TimersState
),
1002 VMSTATE_INT64(dummy
, TimersState
),
1003 VMSTATE_INT64_V(cpu_clock_offset
, TimersState
, 2),
1004 VMSTATE_END_OF_LIST()
1008 static void qemu_event_increment(void);
1011 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
1012 DWORD_PTR dwUser
, DWORD_PTR dw1
,
1015 static void host_alarm_handler(int host_signum
)
1019 #define DISP_FREQ 1000
1021 static int64_t delta_min
= INT64_MAX
;
1022 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
1024 ti
= qemu_get_clock(vm_clock
);
1025 if (last_clock
!= 0) {
1026 delta
= ti
- last_clock
;
1027 if (delta
< delta_min
)
1029 if (delta
> delta_max
)
1032 if (++count
== DISP_FREQ
) {
1033 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1034 muldiv64(delta_min
, 1000000, get_ticks_per_sec()),
1035 muldiv64(delta_max
, 1000000, get_ticks_per_sec()),
1036 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, get_ticks_per_sec()),
1037 (double)get_ticks_per_sec() / ((double)delta_cum
/ DISP_FREQ
));
1039 delta_min
= INT64_MAX
;
1047 if (alarm_has_dynticks(alarm_timer
) ||
1049 qemu_timer_expired(active_timers
[QEMU_CLOCK_VIRTUAL
],
1050 qemu_get_clock(vm_clock
))) ||
1051 qemu_timer_expired(active_timers
[QEMU_CLOCK_REALTIME
],
1052 qemu_get_clock(rt_clock
)) ||
1053 qemu_timer_expired(active_timers
[QEMU_CLOCK_HOST
],
1054 qemu_get_clock(host_clock
))) {
1055 qemu_event_increment();
1056 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1058 #ifndef CONFIG_IOTHREAD
1060 /* stop the currently executing cpu because a timer occured */
1064 timer_alarm_pending
= 1;
1065 qemu_notify_event();
1069 static int64_t qemu_next_deadline(void)
1071 /* To avoid problems with overflow limit this to 2^32. */
1072 int64_t delta
= INT32_MAX
;
1074 if (active_timers
[QEMU_CLOCK_VIRTUAL
]) {
1075 delta
= active_timers
[QEMU_CLOCK_VIRTUAL
]->expire_time
-
1076 qemu_get_clock(vm_clock
);
1078 if (active_timers
[QEMU_CLOCK_HOST
]) {
1079 int64_t hdelta
= active_timers
[QEMU_CLOCK_HOST
]->expire_time
-
1080 qemu_get_clock(host_clock
);
1091 #if defined(__linux__)
1092 static uint64_t qemu_next_deadline_dyntick(void)
1100 delta
= (qemu_next_deadline() + 999) / 1000;
1102 if (active_timers
[QEMU_CLOCK_REALTIME
]) {
1103 rtdelta
= (active_timers
[QEMU_CLOCK_REALTIME
]->expire_time
-
1104 qemu_get_clock(rt_clock
))*1000;
1105 if (rtdelta
< delta
)
1109 if (delta
< MIN_TIMER_REARM_US
)
1110 delta
= MIN_TIMER_REARM_US
;
1118 /* Sets a specific flag */
1119 static int fcntl_setfl(int fd
, int flag
)
1123 flags
= fcntl(fd
, F_GETFL
);
1127 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1133 #if defined(__linux__)
1135 #define RTC_FREQ 1024
1137 static void enable_sigio_timer(int fd
)
1139 struct sigaction act
;
1142 sigfillset(&act
.sa_mask
);
1144 act
.sa_handler
= host_alarm_handler
;
1146 sigaction(SIGIO
, &act
, NULL
);
1147 fcntl_setfl(fd
, O_ASYNC
);
1148 fcntl(fd
, F_SETOWN
, getpid());
1151 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1153 struct hpet_info info
;
1156 fd
= qemu_open("/dev/hpet", O_RDONLY
);
1161 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1163 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1164 "error, but for better emulation accuracy type:\n"
1165 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1169 /* Check capabilities */
1170 r
= ioctl(fd
, HPET_INFO
, &info
);
1174 /* Enable periodic mode */
1175 r
= ioctl(fd
, HPET_EPI
, 0);
1176 if (info
.hi_flags
&& (r
< 0))
1179 /* Enable interrupt */
1180 r
= ioctl(fd
, HPET_IE_ON
, 0);
1184 enable_sigio_timer(fd
);
1185 t
->priv
= (void *)(long)fd
;
1193 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1195 int fd
= (long)t
->priv
;
1200 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1203 unsigned long current_rtc_freq
= 0;
1205 TFR(rtc_fd
= qemu_open("/dev/rtc", O_RDONLY
));
1208 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1209 if (current_rtc_freq
!= RTC_FREQ
&&
1210 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1211 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1212 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1213 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1216 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1222 enable_sigio_timer(rtc_fd
);
1224 t
->priv
= (void *)(long)rtc_fd
;
1229 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1231 int rtc_fd
= (long)t
->priv
;
1236 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1240 struct sigaction act
;
1242 sigfillset(&act
.sa_mask
);
1244 act
.sa_handler
= host_alarm_handler
;
1246 sigaction(SIGALRM
, &act
, NULL
);
1249 * Initialize ev struct to 0 to avoid valgrind complaining
1250 * about uninitialized data in timer_create call
1252 memset(&ev
, 0, sizeof(ev
));
1253 ev
.sigev_value
.sival_int
= 0;
1254 ev
.sigev_notify
= SIGEV_SIGNAL
;
1255 ev
.sigev_signo
= SIGALRM
;
1257 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1258 perror("timer_create");
1260 /* disable dynticks */
1261 fprintf(stderr
, "Dynamic Ticks disabled\n");
1266 t
->priv
= (void *)(long)host_timer
;
1271 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1273 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1275 timer_delete(host_timer
);
1278 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1280 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1281 struct itimerspec timeout
;
1282 int64_t nearest_delta_us
= INT64_MAX
;
1285 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1286 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1287 !active_timers
[QEMU_CLOCK_HOST
])
1290 nearest_delta_us
= qemu_next_deadline_dyntick();
1292 /* check whether a timer is already running */
1293 if (timer_gettime(host_timer
, &timeout
)) {
1295 fprintf(stderr
, "Internal timer error: aborting\n");
1298 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1299 if (current_us
&& current_us
<= nearest_delta_us
)
1302 timeout
.it_interval
.tv_sec
= 0;
1303 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1304 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1305 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1306 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1308 fprintf(stderr
, "Internal timer error: aborting\n");
1313 #endif /* defined(__linux__) */
1315 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1317 struct sigaction act
;
1318 struct itimerval itv
;
1322 sigfillset(&act
.sa_mask
);
1324 act
.sa_handler
= host_alarm_handler
;
1326 sigaction(SIGALRM
, &act
, NULL
);
1328 itv
.it_interval
.tv_sec
= 0;
1329 /* for i386 kernel 2.6 to get 1 ms */
1330 itv
.it_interval
.tv_usec
= 999;
1331 itv
.it_value
.tv_sec
= 0;
1332 itv
.it_value
.tv_usec
= 10 * 1000;
1334 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1341 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1343 struct itimerval itv
;
1345 memset(&itv
, 0, sizeof(itv
));
1346 setitimer(ITIMER_REAL
, &itv
, NULL
);
1349 #endif /* !defined(_WIN32) */
1354 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1357 struct qemu_alarm_win32
*data
= t
->priv
;
1360 memset(&tc
, 0, sizeof(tc
));
1361 timeGetDevCaps(&tc
, sizeof(tc
));
1363 data
->period
= tc
.wPeriodMin
;
1364 timeBeginPeriod(data
->period
);
1366 flags
= TIME_CALLBACK_FUNCTION
;
1367 if (alarm_has_dynticks(t
))
1368 flags
|= TIME_ONESHOT
;
1370 flags
|= TIME_PERIODIC
;
1372 data
->timerId
= timeSetEvent(1, // interval (ms)
1373 data
->period
, // resolution
1374 host_alarm_handler
, // function
1375 (DWORD
)t
, // parameter
1378 if (!data
->timerId
) {
1379 fprintf(stderr
, "Failed to initialize win32 alarm timer: %ld\n",
1381 timeEndPeriod(data
->period
);
1388 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1390 struct qemu_alarm_win32
*data
= t
->priv
;
1392 timeKillEvent(data
->timerId
);
1393 timeEndPeriod(data
->period
);
1396 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1398 struct qemu_alarm_win32
*data
= t
->priv
;
1400 if (!active_timers
[QEMU_CLOCK_REALTIME
] &&
1401 !active_timers
[QEMU_CLOCK_VIRTUAL
] &&
1402 !active_timers
[QEMU_CLOCK_HOST
])
1405 timeKillEvent(data
->timerId
);
1407 data
->timerId
= timeSetEvent(1,
1411 TIME_ONESHOT
| TIME_CALLBACK_FUNCTION
);
1413 if (!data
->timerId
) {
1414 fprintf(stderr
, "Failed to re-arm win32 alarm timer %ld\n",
1417 timeEndPeriod(data
->period
);
1424 static int init_timer_alarm(void)
1426 struct qemu_alarm_timer
*t
= NULL
;
1429 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1430 t
= &alarm_timers
[i
];
1450 static void quit_timers(void)
1452 alarm_timer
->stop(alarm_timer
);
1456 /***********************************************************/
1457 /* host time/date access */
1458 void qemu_get_timedate(struct tm
*tm
, int offset
)
1465 if (rtc_date_offset
== -1) {
1469 ret
= localtime(&ti
);
1471 ti
-= rtc_date_offset
;
1475 memcpy(tm
, ret
, sizeof(struct tm
));
1478 int qemu_timedate_diff(struct tm
*tm
)
1482 if (rtc_date_offset
== -1)
1484 seconds
= mktimegm(tm
);
1486 seconds
= mktime(tm
);
1488 seconds
= mktimegm(tm
) + rtc_date_offset
;
1490 return seconds
- time(NULL
);
1493 void rtc_change_mon_event(struct tm
*tm
)
1497 data
= qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm
));
1498 monitor_protocol_event(QEVENT_RTC_CHANGE
, data
);
1499 qobject_decref(data
);
1502 static void configure_rtc_date_offset(const char *startdate
, int legacy
)
1504 time_t rtc_start_date
;
1507 if (!strcmp(startdate
, "now") && legacy
) {
1508 rtc_date_offset
= -1;
1510 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d",
1518 } else if (sscanf(startdate
, "%d-%d-%d",
1521 &tm
.tm_mday
) == 3) {
1530 rtc_start_date
= mktimegm(&tm
);
1531 if (rtc_start_date
== -1) {
1533 fprintf(stderr
, "Invalid date format. Valid formats are:\n"
1534 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1537 rtc_date_offset
= time(NULL
) - rtc_start_date
;
1541 static void configure_rtc(QemuOpts
*opts
)
1545 value
= qemu_opt_get(opts
, "base");
1547 if (!strcmp(value
, "utc")) {
1549 } else if (!strcmp(value
, "localtime")) {
1552 configure_rtc_date_offset(value
, 0);
1555 value
= qemu_opt_get(opts
, "clock");
1557 if (!strcmp(value
, "host")) {
1558 rtc_clock
= host_clock
;
1559 } else if (!strcmp(value
, "vm")) {
1560 rtc_clock
= vm_clock
;
1562 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1566 #ifdef CONFIG_TARGET_I386
1567 value
= qemu_opt_get(opts
, "driftfix");
1569 if (!strcmp(buf
, "slew")) {
1571 } else if (!strcmp(buf
, "none")) {
1574 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
1582 static void socket_cleanup(void)
1587 static int socket_init(void)
1592 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
1594 err
= WSAGetLastError();
1595 fprintf(stderr
, "WSAStartup: %d\n", err
);
1598 atexit(socket_cleanup
);
1603 /***********************************************************/
1604 /* Bluetooth support */
1607 static struct HCIInfo
*hci_table
[MAX_NICS
];
1609 static struct bt_vlan_s
{
1610 struct bt_scatternet_s net
;
1612 struct bt_vlan_s
*next
;
1615 /* find or alloc a new bluetooth "VLAN" */
1616 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1618 struct bt_vlan_s
**pvlan
, *vlan
;
1619 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1623 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1625 pvlan
= &first_bt_vlan
;
1626 while (*pvlan
!= NULL
)
1627 pvlan
= &(*pvlan
)->next
;
1632 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1636 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1641 static struct HCIInfo null_hci
= {
1642 .cmd_send
= null_hci_send
,
1643 .sco_send
= null_hci_send
,
1644 .acl_send
= null_hci_send
,
1645 .bdaddr_set
= null_hci_addr_set
,
1648 struct HCIInfo
*qemu_next_hci(void)
1650 if (cur_hci
== nb_hcis
)
1653 return hci_table
[cur_hci
++];
1656 static struct HCIInfo
*hci_init(const char *str
)
1659 struct bt_scatternet_s
*vlan
= 0;
1661 if (!strcmp(str
, "null"))
1664 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1666 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1667 else if (!strncmp(str
, "hci", 3)) {
1670 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1671 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1676 vlan
= qemu_find_bt_vlan(0);
1678 return bt_new_hci(vlan
);
1681 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1686 static int bt_hci_parse(const char *str
)
1688 struct HCIInfo
*hci
;
1691 if (nb_hcis
>= MAX_NICS
) {
1692 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1696 hci
= hci_init(str
);
1705 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1706 hci
->bdaddr_set(hci
, bdaddr
.b
);
1708 hci_table
[nb_hcis
++] = hci
;
1713 static void bt_vhci_add(int vlan_id
)
1715 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1718 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1719 "an empty scatternet %i\n", vlan_id
);
1721 bt_vhci_init(bt_new_hci(vlan
));
1724 static struct bt_device_s
*bt_device_add(const char *opt
)
1726 struct bt_scatternet_s
*vlan
;
1728 char *endp
= strstr(opt
, ",vlan=");
1729 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1732 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1735 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1737 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1742 vlan
= qemu_find_bt_vlan(vlan_id
);
1745 fprintf(stderr
, "qemu: warning: adding a slave device to "
1746 "an empty scatternet %i\n", vlan_id
);
1748 if (!strcmp(devname
, "keyboard"))
1749 return bt_keyboard_init(vlan
);
1751 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1755 static int bt_parse(const char *opt
)
1757 const char *endp
, *p
;
1760 if (strstart(opt
, "hci", &endp
)) {
1761 if (!*endp
|| *endp
== ',') {
1763 if (!strstart(endp
, ",vlan=", 0))
1766 return bt_hci_parse(opt
);
1768 } else if (strstart(opt
, "vhci", &endp
)) {
1769 if (!*endp
|| *endp
== ',') {
1771 if (strstart(endp
, ",vlan=", &p
)) {
1772 vlan
= strtol(p
, (char **) &endp
, 0);
1774 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1778 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1787 } else if (strstart(opt
, "device:", &endp
))
1788 return !bt_device_add(endp
);
1790 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1794 /***********************************************************/
1795 /* QEMU Block devices */
1797 #define HD_ALIAS "index=%d,media=disk"
1798 #define CDROM_ALIAS "index=2,media=cdrom"
1799 #define FD_ALIAS "index=%d,if=floppy"
1800 #define PFLASH_ALIAS "if=pflash"
1801 #define MTD_ALIAS "if=mtd"
1802 #define SD_ALIAS "index=0,if=sd"
1804 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
1811 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
1814 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, 0);
1816 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
1817 __FUNCTION__
, optstr
);
1821 qemu_opt_set(opts
, "file", file
);
1825 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
1829 /* seek interface, bus and unit */
1831 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1832 if (dinfo
->type
== type
&&
1833 dinfo
->bus
== bus
&&
1834 dinfo
->unit
== unit
)
1841 DriveInfo
*drive_get_by_id(const char *id
)
1845 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1846 if (strcmp(id
, dinfo
->id
))
1853 int drive_get_max_bus(BlockInterfaceType type
)
1859 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1860 if(dinfo
->type
== type
&&
1861 dinfo
->bus
> max_bus
)
1862 max_bus
= dinfo
->bus
;
1867 const char *drive_get_serial(BlockDriverState
*bdrv
)
1871 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1872 if (dinfo
->bdrv
== bdrv
)
1873 return dinfo
->serial
;
1879 BlockInterfaceErrorAction
drive_get_on_error(
1880 BlockDriverState
*bdrv
, int is_read
)
1884 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1885 if (dinfo
->bdrv
== bdrv
)
1886 return is_read
? dinfo
->on_read_error
: dinfo
->on_write_error
;
1889 return is_read
? BLOCK_ERR_REPORT
: BLOCK_ERR_STOP_ENOSPC
;
1892 static void bdrv_format_print(void *opaque
, const char *name
)
1894 fprintf(stderr
, " %s", name
);
1897 void drive_uninit(DriveInfo
*dinfo
)
1899 qemu_opts_del(dinfo
->opts
);
1900 bdrv_delete(dinfo
->bdrv
);
1901 QTAILQ_REMOVE(&drives
, dinfo
, next
);
1905 static int parse_block_error_action(const char *buf
, int is_read
)
1907 if (!strcmp(buf
, "ignore")) {
1908 return BLOCK_ERR_IGNORE
;
1909 } else if (!is_read
&& !strcmp(buf
, "enospc")) {
1910 return BLOCK_ERR_STOP_ENOSPC
;
1911 } else if (!strcmp(buf
, "stop")) {
1912 return BLOCK_ERR_STOP_ANY
;
1913 } else if (!strcmp(buf
, "report")) {
1914 return BLOCK_ERR_REPORT
;
1916 fprintf(stderr
, "qemu: '%s' invalid %s error action\n",
1917 buf
, is_read
? "read" : "write");
1922 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
1926 const char *file
= NULL
;
1929 const char *mediastr
= "";
1930 BlockInterfaceType type
;
1931 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
1932 int bus_id
, unit_id
;
1933 int cyls
, heads
, secs
, translation
;
1934 BlockDriver
*drv
= NULL
;
1935 QEMUMachine
*machine
= opaque
;
1942 int on_read_error
, on_write_error
;
1943 const char *devaddr
;
1949 translation
= BIOS_ATA_TRANSLATION_AUTO
;
1952 if (machine
&& machine
->use_scsi
) {
1954 max_devs
= MAX_SCSI_DEVS
;
1955 pstrcpy(devname
, sizeof(devname
), "scsi");
1958 max_devs
= MAX_IDE_DEVS
;
1959 pstrcpy(devname
, sizeof(devname
), "ide");
1963 /* extract parameters */
1964 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
1965 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
1966 index
= qemu_opt_get_number(opts
, "index", -1);
1968 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
1969 heads
= qemu_opt_get_number(opts
, "heads", 0);
1970 secs
= qemu_opt_get_number(opts
, "secs", 0);
1972 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
1973 ro
= qemu_opt_get_bool(opts
, "readonly", 0);
1975 file
= qemu_opt_get(opts
, "file");
1976 serial
= qemu_opt_get(opts
, "serial");
1978 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
1979 pstrcpy(devname
, sizeof(devname
), buf
);
1980 if (!strcmp(buf
, "ide")) {
1982 max_devs
= MAX_IDE_DEVS
;
1983 } else if (!strcmp(buf
, "scsi")) {
1985 max_devs
= MAX_SCSI_DEVS
;
1986 } else if (!strcmp(buf
, "floppy")) {
1989 } else if (!strcmp(buf
, "pflash")) {
1992 } else if (!strcmp(buf
, "mtd")) {
1995 } else if (!strcmp(buf
, "sd")) {
1998 } else if (!strcmp(buf
, "virtio")) {
2001 } else if (!strcmp(buf
, "xen")) {
2004 } else if (!strcmp(buf
, "none")) {
2008 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
2013 if (cyls
|| heads
|| secs
) {
2014 if (cyls
< 1 || (type
== IF_IDE
&& cyls
> 16383)) {
2015 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
2018 if (heads
< 1 || (type
== IF_IDE
&& heads
> 16)) {
2019 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
2022 if (secs
< 1 || (type
== IF_IDE
&& secs
> 63)) {
2023 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
2028 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
2031 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2035 if (!strcmp(buf
, "none"))
2036 translation
= BIOS_ATA_TRANSLATION_NONE
;
2037 else if (!strcmp(buf
, "lba"))
2038 translation
= BIOS_ATA_TRANSLATION_LBA
;
2039 else if (!strcmp(buf
, "auto"))
2040 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2042 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
2047 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
2048 if (!strcmp(buf
, "disk")) {
2050 } else if (!strcmp(buf
, "cdrom")) {
2051 if (cyls
|| secs
|| heads
) {
2053 "qemu: '%s' invalid physical CHS format\n", buf
);
2056 media
= MEDIA_CDROM
;
2058 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
2063 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
2064 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2066 else if (!strcmp(buf
, "writethrough"))
2068 else if (!strcmp(buf
, "writeback"))
2071 fprintf(stderr
, "qemu: invalid cache option\n");
2076 #ifdef CONFIG_LINUX_AIO
2077 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
2078 if (!strcmp(buf
, "threads"))
2080 else if (!strcmp(buf
, "native"))
2083 fprintf(stderr
, "qemu: invalid aio option\n");
2089 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
2090 if (strcmp(buf
, "?") == 0) {
2091 fprintf(stderr
, "qemu: Supported formats:");
2092 bdrv_iterate_format(bdrv_format_print
, NULL
);
2093 fprintf(stderr
, "\n");
2096 drv
= bdrv_find_whitelisted_format(buf
);
2098 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2103 on_write_error
= BLOCK_ERR_STOP_ENOSPC
;
2104 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
2105 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2106 fprintf(stderr
, "werror is no supported by this format\n");
2110 on_write_error
= parse_block_error_action(buf
, 0);
2111 if (on_write_error
< 0) {
2116 on_read_error
= BLOCK_ERR_REPORT
;
2117 if ((buf
= qemu_opt_get(opts
, "rerror")) != NULL
) {
2118 if (type
!= IF_IDE
&& type
!= IF_VIRTIO
) {
2119 fprintf(stderr
, "rerror is no supported by this format\n");
2123 on_read_error
= parse_block_error_action(buf
, 1);
2124 if (on_read_error
< 0) {
2129 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
2130 if (type
!= IF_VIRTIO
) {
2131 fprintf(stderr
, "addr is not supported\n");
2136 /* compute bus and unit according index */
2139 if (bus_id
!= 0 || unit_id
!= -1) {
2141 "qemu: index cannot be used with bus and unit\n");
2149 unit_id
= index
% max_devs
;
2150 bus_id
= index
/ max_devs
;
2154 /* if user doesn't specify a unit_id,
2155 * try to find the first free
2158 if (unit_id
== -1) {
2160 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2162 if (max_devs
&& unit_id
>= max_devs
) {
2163 unit_id
-= max_devs
;
2171 if (max_devs
&& unit_id
>= max_devs
) {
2172 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
2173 unit_id
, max_devs
- 1);
2178 * ignore multiple definitions
2181 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2188 dinfo
= qemu_mallocz(sizeof(*dinfo
));
2189 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
2190 dinfo
->id
= qemu_strdup(buf
);
2192 /* no id supplied -> create one */
2193 dinfo
->id
= qemu_mallocz(32);
2194 if (type
== IF_IDE
|| type
== IF_SCSI
)
2195 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2197 snprintf(dinfo
->id
, 32, "%s%i%s%i",
2198 devname
, bus_id
, mediastr
, unit_id
);
2200 snprintf(dinfo
->id
, 32, "%s%s%i",
2201 devname
, mediastr
, unit_id
);
2203 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
2204 dinfo
->devaddr
= devaddr
;
2206 dinfo
->bus
= bus_id
;
2207 dinfo
->unit
= unit_id
;
2208 dinfo
->on_read_error
= on_read_error
;
2209 dinfo
->on_write_error
= on_write_error
;
2212 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
2213 QTAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
2223 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
2224 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
2228 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
2233 /* FIXME: This isn't really a floppy, but it's a reasonable
2236 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
2242 /* add virtio block device */
2243 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
2244 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
2245 qemu_opt_set(opts
, "drive", dinfo
->id
);
2247 qemu_opt_set(opts
, "addr", devaddr
);
2258 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2259 cache
= 2; /* always use write-back with snapshot */
2261 if (cache
== 0) /* no caching */
2262 bdrv_flags
|= BDRV_O_NOCACHE
;
2263 else if (cache
== 2) /* write-back */
2264 bdrv_flags
|= BDRV_O_CACHE_WB
;
2267 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
2269 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
2273 if (type
!= IF_SCSI
&& type
!= IF_VIRTIO
&& type
!= IF_FLOPPY
) {
2274 fprintf(stderr
, "qemu: readonly flag not supported for drive with this interface\n");
2279 * cdrom is read-only. Set it now, after above interface checking
2280 * since readonly attribute not explicitly required, so no error.
2282 if (media
== MEDIA_CDROM
) {
2285 bdrv_flags
|= ro
? 0 : BDRV_O_RDWR
;
2287 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
2288 fprintf(stderr
, "qemu: could not open disk image %s: %s\n",
2289 file
, strerror(errno
));
2293 if (bdrv_key_required(dinfo
->bdrv
))
2299 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
2301 QEMUMachine
*machine
= opaque
;
2302 int fatal_error
= 0;
2304 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
2311 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
2313 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
2314 qemu_opt_set(opts
, "snapshot", "on");
2319 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
2321 boot_set_handler
= func
;
2322 boot_set_opaque
= opaque
;
2325 int qemu_boot_set(const char *boot_devices
)
2327 if (!boot_set_handler
) {
2330 return boot_set_handler(boot_set_opaque
, boot_devices
);
2333 static int parse_bootdevices(char *devices
)
2335 /* We just do some generic consistency checks */
2339 for (p
= devices
; *p
!= '\0'; p
++) {
2340 /* Allowed boot devices are:
2341 * a-b: floppy disk drives
2342 * c-f: IDE disk drives
2343 * g-m: machine implementation dependant drives
2344 * n-p: network devices
2345 * It's up to each machine implementation to check if the given boot
2346 * devices match the actual hardware implementation and firmware
2349 if (*p
< 'a' || *p
> 'p') {
2350 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2353 if (bitmap
& (1 << (*p
- 'a'))) {
2354 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2357 bitmap
|= 1 << (*p
- 'a');
2362 static void restore_boot_devices(void *opaque
)
2364 char *standard_boot_devices
= opaque
;
2366 qemu_boot_set(standard_boot_devices
);
2368 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
2369 qemu_free(standard_boot_devices
);
2372 static void numa_add(const char *optarg
)
2376 unsigned long long value
, endvalue
;
2379 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2380 if (!strcmp(option
, "node")) {
2381 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2382 nodenr
= nb_numa_nodes
;
2384 nodenr
= strtoull(option
, NULL
, 10);
2387 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2388 node_mem
[nodenr
] = 0;
2390 value
= strtoull(option
, &endptr
, 0);
2392 case 0: case 'M': case 'm':
2399 node_mem
[nodenr
] = value
;
2401 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2402 node_cpumask
[nodenr
] = 0;
2404 value
= strtoull(option
, &endptr
, 10);
2407 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2409 if (*endptr
== '-') {
2410 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2411 if (endvalue
>= 63) {
2414 "only 63 CPUs in NUMA mode supported.\n");
2416 value
= (2ULL << endvalue
) - (1ULL << value
);
2418 value
= 1ULL << value
;
2421 node_cpumask
[nodenr
] = value
;
2428 static void smp_parse(const char *optarg
)
2430 int smp
, sockets
= 0, threads
= 0, cores
= 0;
2434 smp
= strtoul(optarg
, &endptr
, 10);
2435 if (endptr
!= optarg
) {
2436 if (*endptr
== ',') {
2440 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
2441 sockets
= strtoull(option
, NULL
, 10);
2442 if (get_param_value(option
, 128, "cores", endptr
) != 0)
2443 cores
= strtoull(option
, NULL
, 10);
2444 if (get_param_value(option
, 128, "threads", endptr
) != 0)
2445 threads
= strtoull(option
, NULL
, 10);
2446 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
2447 max_cpus
= strtoull(option
, NULL
, 10);
2449 /* compute missing values, prefer sockets over cores over threads */
2450 if (smp
== 0 || sockets
== 0) {
2451 sockets
= sockets
> 0 ? sockets
: 1;
2452 cores
= cores
> 0 ? cores
: 1;
2453 threads
= threads
> 0 ? threads
: 1;
2455 smp
= cores
* threads
* sockets
;
2459 threads
= threads
> 0 ? threads
: 1;
2460 cores
= smp
/ (sockets
* threads
);
2463 threads
= smp
/ (cores
* sockets
);
2468 smp_cores
= cores
> 0 ? cores
: 1;
2469 smp_threads
= threads
> 0 ? threads
: 1;
2471 max_cpus
= smp_cpus
;
2474 /***********************************************************/
2477 static int usb_device_add(const char *devname
, int is_hotplug
)
2480 USBDevice
*dev
= NULL
;
2485 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2486 dev
= usbdevice_create(devname
);
2490 /* the other ones */
2491 if (strstart(devname
, "host:", &p
)) {
2492 dev
= usb_host_device_open(p
);
2493 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2494 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2495 bt_new_hci(qemu_find_bt_vlan(0)));
2506 static int usb_device_del(const char *devname
)
2511 if (strstart(devname
, "host:", &p
))
2512 return usb_host_device_close(p
);
2517 p
= strchr(devname
, '.');
2520 bus_num
= strtoul(devname
, NULL
, 0);
2521 addr
= strtoul(p
+ 1, NULL
, 0);
2523 return usb_device_delete_addr(bus_num
, addr
);
2526 static int usb_parse(const char *cmdline
)
2529 r
= usb_device_add(cmdline
, 0);
2531 fprintf(stderr
, "qemu: could not add USB device '%s'\n", cmdline
);
2536 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
2538 const char *devname
= qdict_get_str(qdict
, "devname");
2539 if (usb_device_add(devname
, 1) < 0) {
2540 error_report("could not add USB device '%s'", devname
);
2544 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
2546 const char *devname
= qdict_get_str(qdict
, "devname");
2547 if (usb_device_del(devname
) < 0) {
2548 error_report("could not delete USB device '%s'", devname
);
2552 /***********************************************************/
2553 /* PCMCIA/Cardbus */
2555 static struct pcmcia_socket_entry_s
{
2556 PCMCIASocket
*socket
;
2557 struct pcmcia_socket_entry_s
*next
;
2558 } *pcmcia_sockets
= 0;
2560 void pcmcia_socket_register(PCMCIASocket
*socket
)
2562 struct pcmcia_socket_entry_s
*entry
;
2564 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2565 entry
->socket
= socket
;
2566 entry
->next
= pcmcia_sockets
;
2567 pcmcia_sockets
= entry
;
2570 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2572 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2574 ptr
= &pcmcia_sockets
;
2575 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2576 if (entry
->socket
== socket
) {
2582 void pcmcia_info(Monitor
*mon
)
2584 struct pcmcia_socket_entry_s
*iter
;
2586 if (!pcmcia_sockets
)
2587 monitor_printf(mon
, "No PCMCIA sockets\n");
2589 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2590 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2591 iter
->socket
->attached
? iter
->socket
->card_string
:
2595 /***********************************************************/
2598 typedef struct IOHandlerRecord
{
2600 IOCanRWHandler
*fd_read_poll
;
2602 IOHandler
*fd_write
;
2605 /* temporary data */
2607 struct IOHandlerRecord
*next
;
2610 static IOHandlerRecord
*first_io_handler
;
2612 /* XXX: fd_read_poll should be suppressed, but an API change is
2613 necessary in the character devices to suppress fd_can_read(). */
2614 int qemu_set_fd_handler2(int fd
,
2615 IOCanRWHandler
*fd_read_poll
,
2617 IOHandler
*fd_write
,
2620 IOHandlerRecord
**pioh
, *ioh
;
2622 if (!fd_read
&& !fd_write
) {
2623 pioh
= &first_io_handler
;
2628 if (ioh
->fd
== fd
) {
2635 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2639 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2640 ioh
->next
= first_io_handler
;
2641 first_io_handler
= ioh
;
2644 ioh
->fd_read_poll
= fd_read_poll
;
2645 ioh
->fd_read
= fd_read
;
2646 ioh
->fd_write
= fd_write
;
2647 ioh
->opaque
= opaque
;
2653 int qemu_set_fd_handler(int fd
,
2655 IOHandler
*fd_write
,
2658 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2662 /***********************************************************/
2663 /* Polling handling */
2665 typedef struct PollingEntry
{
2668 struct PollingEntry
*next
;
2671 static PollingEntry
*first_polling_entry
;
2673 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2675 PollingEntry
**ppe
, *pe
;
2676 pe
= qemu_mallocz(sizeof(PollingEntry
));
2678 pe
->opaque
= opaque
;
2679 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2684 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2686 PollingEntry
**ppe
, *pe
;
2687 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2689 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2697 /***********************************************************/
2698 /* Wait objects support */
2699 typedef struct WaitObjects
{
2701 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2702 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2703 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2706 static WaitObjects wait_objects
= {0};
2708 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2710 WaitObjects
*w
= &wait_objects
;
2712 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2714 w
->events
[w
->num
] = handle
;
2715 w
->func
[w
->num
] = func
;
2716 w
->opaque
[w
->num
] = opaque
;
2721 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2724 WaitObjects
*w
= &wait_objects
;
2727 for (i
= 0; i
< w
->num
; i
++) {
2728 if (w
->events
[i
] == handle
)
2731 w
->events
[i
] = w
->events
[i
+ 1];
2732 w
->func
[i
] = w
->func
[i
+ 1];
2733 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2741 /***********************************************************/
2742 /* ram save/restore */
2744 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2745 #define RAM_SAVE_FLAG_COMPRESS 0x02
2746 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2747 #define RAM_SAVE_FLAG_PAGE 0x08
2748 #define RAM_SAVE_FLAG_EOS 0x10
2750 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2752 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2753 uint32_t *array
= (uint32_t *)page
;
2756 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2757 if (array
[i
] != val
)
2764 static int ram_save_block(QEMUFile
*f
)
2766 static ram_addr_t current_addr
= 0;
2767 ram_addr_t saved_addr
= current_addr
;
2768 ram_addr_t addr
= 0;
2771 while (addr
< last_ram_offset
) {
2772 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
2775 cpu_physical_memory_reset_dirty(current_addr
,
2776 current_addr
+ TARGET_PAGE_SIZE
,
2777 MIGRATION_DIRTY_FLAG
);
2779 p
= qemu_get_ram_ptr(current_addr
);
2781 if (is_dup_page(p
, *p
)) {
2782 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
2783 qemu_put_byte(f
, *p
);
2785 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
2786 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
2792 addr
+= TARGET_PAGE_SIZE
;
2793 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
2799 static uint64_t bytes_transferred
;
2801 static ram_addr_t
ram_save_remaining(void)
2804 ram_addr_t count
= 0;
2806 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2807 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2814 uint64_t ram_bytes_remaining(void)
2816 return ram_save_remaining() * TARGET_PAGE_SIZE
;
2819 uint64_t ram_bytes_transferred(void)
2821 return bytes_transferred
;
2824 uint64_t ram_bytes_total(void)
2826 return last_ram_offset
;
2829 static int ram_save_live(Monitor
*mon
, QEMUFile
*f
, int stage
, void *opaque
)
2832 uint64_t bytes_transferred_last
;
2834 uint64_t expected_time
= 0;
2837 cpu_physical_memory_set_dirty_tracking(0);
2841 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
2842 qemu_file_set_error(f
);
2847 bytes_transferred
= 0;
2849 /* Make sure all dirty bits are set */
2850 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2851 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2852 cpu_physical_memory_set_dirty(addr
);
2855 /* Enable dirty memory tracking */
2856 cpu_physical_memory_set_dirty_tracking(1);
2858 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
2861 bytes_transferred_last
= bytes_transferred
;
2862 bwidth
= qemu_get_clock_ns(rt_clock
);
2864 while (!qemu_file_rate_limit(f
)) {
2867 ret
= ram_save_block(f
);
2868 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
2869 if (ret
== 0) /* no more blocks */
2873 bwidth
= qemu_get_clock_ns(rt_clock
) - bwidth
;
2874 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
2876 /* if we haven't transferred anything this round, force expected_time to a
2877 * a very high value, but without crashing */
2881 /* try transferring iterative blocks of memory */
2883 /* flush all remaining blocks regardless of rate limiting */
2884 while (ram_save_block(f
) != 0) {
2885 bytes_transferred
+= TARGET_PAGE_SIZE
;
2887 cpu_physical_memory_set_dirty_tracking(0);
2890 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
2892 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
2894 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
2897 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
2902 if (version_id
!= 3)
2906 addr
= qemu_get_be64(f
);
2908 flags
= addr
& ~TARGET_PAGE_MASK
;
2909 addr
&= TARGET_PAGE_MASK
;
2911 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
2912 if (addr
!= last_ram_offset
)
2916 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
2917 uint8_t ch
= qemu_get_byte(f
);
2918 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
2921 (!kvm_enabled() || kvm_has_sync_mmu())) {
2922 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
2925 } else if (flags
& RAM_SAVE_FLAG_PAGE
) {
2926 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
2928 if (qemu_file_has_error(f
)) {
2931 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
2936 void qemu_service_io(void)
2938 qemu_notify_event();
2941 /***********************************************************/
2942 /* machine registration */
2944 static QEMUMachine
*first_machine
= NULL
;
2945 QEMUMachine
*current_machine
= NULL
;
2947 int qemu_register_machine(QEMUMachine
*m
)
2950 pm
= &first_machine
;
2958 static QEMUMachine
*find_machine(const char *name
)
2962 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
2963 if (!strcmp(m
->name
, name
))
2965 if (m
->alias
&& !strcmp(m
->alias
, name
))
2971 static QEMUMachine
*find_default_machine(void)
2975 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
2976 if (m
->is_default
) {
2983 /***********************************************************/
2984 /* main execution loop */
2986 static void gui_update(void *opaque
)
2988 uint64_t interval
= GUI_REFRESH_INTERVAL
;
2989 DisplayState
*ds
= opaque
;
2990 DisplayChangeListener
*dcl
= ds
->listeners
;
2992 qemu_flush_coalesced_mmio_buffer();
2995 while (dcl
!= NULL
) {
2996 if (dcl
->gui_timer_interval
&&
2997 dcl
->gui_timer_interval
< interval
)
2998 interval
= dcl
->gui_timer_interval
;
3001 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3004 static void nographic_update(void *opaque
)
3006 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3008 qemu_flush_coalesced_mmio_buffer();
3009 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3012 void cpu_synchronize_all_states(void)
3016 for (cpu
= first_cpu
; cpu
; cpu
= cpu
->next_cpu
) {
3017 cpu_synchronize_state(cpu
);
3021 void cpu_synchronize_all_post_reset(void)
3025 for (cpu
= first_cpu
; cpu
; cpu
= cpu
->next_cpu
) {
3026 cpu_synchronize_post_reset(cpu
);
3030 void cpu_synchronize_all_post_init(void)
3034 for (cpu
= first_cpu
; cpu
; cpu
= cpu
->next_cpu
) {
3035 cpu_synchronize_post_init(cpu
);
3039 struct vm_change_state_entry
{
3040 VMChangeStateHandler
*cb
;
3042 QLIST_ENTRY (vm_change_state_entry
) entries
;
3045 static QLIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3047 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3050 VMChangeStateEntry
*e
;
3052 e
= qemu_mallocz(sizeof (*e
));
3056 QLIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3060 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3062 QLIST_REMOVE (e
, entries
);
3066 static void vm_state_notify(int running
, int reason
)
3068 VMChangeStateEntry
*e
;
3070 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3071 e
->cb(e
->opaque
, running
, reason
);
3075 static void resume_all_vcpus(void);
3076 static void pause_all_vcpus(void);
3083 vm_state_notify(1, 0);
3084 qemu_rearm_alarm_timer(alarm_timer
);
3089 /* reset/shutdown handler */
3091 typedef struct QEMUResetEntry
{
3092 QTAILQ_ENTRY(QEMUResetEntry
) entry
;
3093 QEMUResetHandler
*func
;
3097 static QTAILQ_HEAD(reset_handlers
, QEMUResetEntry
) reset_handlers
=
3098 QTAILQ_HEAD_INITIALIZER(reset_handlers
);
3099 static int reset_requested
;
3100 static int shutdown_requested
;
3101 static int powerdown_requested
;
3102 static int debug_requested
;
3103 static int vmstop_requested
;
3105 int qemu_shutdown_requested(void)
3107 int r
= shutdown_requested
;
3108 shutdown_requested
= 0;
3112 int qemu_reset_requested(void)
3114 int r
= reset_requested
;
3115 reset_requested
= 0;
3119 int qemu_powerdown_requested(void)
3121 int r
= powerdown_requested
;
3122 powerdown_requested
= 0;
3126 static int qemu_debug_requested(void)
3128 int r
= debug_requested
;
3129 debug_requested
= 0;
3133 static int qemu_vmstop_requested(void)
3135 int r
= vmstop_requested
;
3136 vmstop_requested
= 0;
3140 static void do_vm_stop(int reason
)
3143 cpu_disable_ticks();
3146 vm_state_notify(0, reason
);
3147 monitor_protocol_event(QEVENT_STOP
, NULL
);
3151 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3153 QEMUResetEntry
*re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3156 re
->opaque
= opaque
;
3157 QTAILQ_INSERT_TAIL(&reset_handlers
, re
, entry
);
3160 void qemu_unregister_reset(QEMUResetHandler
*func
, void *opaque
)
3164 QTAILQ_FOREACH(re
, &reset_handlers
, entry
) {
3165 if (re
->func
== func
&& re
->opaque
== opaque
) {
3166 QTAILQ_REMOVE(&reset_handlers
, re
, entry
);
3173 void qemu_system_reset(void)
3175 QEMUResetEntry
*re
, *nre
;
3177 /* reset all devices */
3178 QTAILQ_FOREACH_SAFE(re
, &reset_handlers
, entry
, nre
) {
3179 re
->func(re
->opaque
);
3181 monitor_protocol_event(QEVENT_RESET
, NULL
);
3182 cpu_synchronize_all_post_reset();
3185 void qemu_system_reset_request(void)
3188 shutdown_requested
= 1;
3190 reset_requested
= 1;
3192 qemu_notify_event();
3195 void qemu_system_shutdown_request(void)
3197 shutdown_requested
= 1;
3198 qemu_notify_event();
3201 void qemu_system_powerdown_request(void)
3203 powerdown_requested
= 1;
3204 qemu_notify_event();
3207 #ifdef CONFIG_IOTHREAD
3208 static void qemu_system_vmstop_request(int reason
)
3210 vmstop_requested
= reason
;
3211 qemu_notify_event();
3216 static int io_thread_fd
= -1;
3218 static void qemu_event_increment(void)
3220 /* Write 8 bytes to be compatible with eventfd. */
3221 static uint64_t val
= 1;
3224 if (io_thread_fd
== -1)
3228 ret
= write(io_thread_fd
, &val
, sizeof(val
));
3229 } while (ret
< 0 && errno
== EINTR
);
3231 /* EAGAIN is fine, a read must be pending. */
3232 if (ret
< 0 && errno
!= EAGAIN
) {
3233 fprintf(stderr
, "qemu_event_increment: write() filed: %s\n",
3239 static void qemu_event_read(void *opaque
)
3241 int fd
= (unsigned long)opaque
;
3245 /* Drain the notify pipe. For eventfd, only 8 bytes will be read. */
3247 len
= read(fd
, buffer
, sizeof(buffer
));
3248 } while ((len
== -1 && errno
== EINTR
) || len
== sizeof(buffer
));
3251 static int qemu_event_init(void)
3256 err
= qemu_eventfd(fds
);
3260 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3264 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3268 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3269 (void *)(unsigned long)fds
[0]);
3271 io_thread_fd
= fds
[1];
3280 HANDLE qemu_event_handle
;
3282 static void dummy_event_handler(void *opaque
)
3286 static int qemu_event_init(void)
3288 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3289 if (!qemu_event_handle
) {
3290 fprintf(stderr
, "Failed CreateEvent: %ld\n", GetLastError());
3293 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3297 static void qemu_event_increment(void)
3299 if (!SetEvent(qemu_event_handle
)) {
3300 fprintf(stderr
, "qemu_event_increment: SetEvent failed: %ld\n",
3307 static int cpu_can_run(CPUState
*env
)
3318 #ifndef CONFIG_IOTHREAD
3319 static int qemu_init_main_loop(void)
3321 return qemu_event_init();
3324 void qemu_init_vcpu(void *_env
)
3326 CPUState
*env
= _env
;
3328 env
->nr_cores
= smp_cores
;
3329 env
->nr_threads
= smp_threads
;
3335 int qemu_cpu_self(void *env
)
3340 static void resume_all_vcpus(void)
3344 static void pause_all_vcpus(void)
3348 void qemu_cpu_kick(void *env
)
3353 void qemu_notify_event(void)
3355 CPUState
*env
= cpu_single_env
;
3362 void qemu_mutex_lock_iothread(void) {}
3363 void qemu_mutex_unlock_iothread(void) {}
3365 void vm_stop(int reason
)
3370 #else /* CONFIG_IOTHREAD */
3372 #include "qemu-thread.h"
3374 QemuMutex qemu_global_mutex
;
3375 static QemuMutex qemu_fair_mutex
;
3377 static QemuThread io_thread
;
3379 static QemuThread
*tcg_cpu_thread
;
3380 static QemuCond
*tcg_halt_cond
;
3382 static int qemu_system_ready
;
3384 static QemuCond qemu_cpu_cond
;
3386 static QemuCond qemu_system_cond
;
3387 static QemuCond qemu_pause_cond
;
3389 static void tcg_block_io_signals(void);
3390 static void kvm_block_io_signals(CPUState
*env
);
3391 static void unblock_io_signals(void);
3392 static int tcg_has_work(void);
3393 static int cpu_has_work(CPUState
*env
);
3395 static int qemu_init_main_loop(void)
3399 ret
= qemu_event_init();
3403 qemu_cond_init(&qemu_pause_cond
);
3404 qemu_mutex_init(&qemu_fair_mutex
);
3405 qemu_mutex_init(&qemu_global_mutex
);
3406 qemu_mutex_lock(&qemu_global_mutex
);
3408 unblock_io_signals();
3409 qemu_thread_self(&io_thread
);
3414 static void qemu_wait_io_event_common(CPUState
*env
)
3419 qemu_cond_signal(&qemu_pause_cond
);
3423 static void qemu_wait_io_event(CPUState
*env
)
3425 while (!tcg_has_work())
3426 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3428 qemu_mutex_unlock(&qemu_global_mutex
);
3431 * Users of qemu_global_mutex can be starved, having no chance
3432 * to acquire it since this path will get to it first.
3433 * So use another lock to provide fairness.
3435 qemu_mutex_lock(&qemu_fair_mutex
);
3436 qemu_mutex_unlock(&qemu_fair_mutex
);
3438 qemu_mutex_lock(&qemu_global_mutex
);
3439 qemu_wait_io_event_common(env
);
3442 static void qemu_kvm_eat_signal(CPUState
*env
, int timeout
)
3449 ts
.tv_sec
= timeout
/ 1000;
3450 ts
.tv_nsec
= (timeout
% 1000) * 1000000;
3452 sigemptyset(&waitset
);
3453 sigaddset(&waitset
, SIG_IPI
);
3455 qemu_mutex_unlock(&qemu_global_mutex
);
3456 r
= sigtimedwait(&waitset
, &siginfo
, &ts
);
3458 qemu_mutex_lock(&qemu_global_mutex
);
3460 if (r
== -1 && !(e
== EAGAIN
|| e
== EINTR
)) {
3461 fprintf(stderr
, "sigtimedwait: %s\n", strerror(e
));
3466 static void qemu_kvm_wait_io_event(CPUState
*env
)
3468 while (!cpu_has_work(env
))
3469 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3471 qemu_kvm_eat_signal(env
, 0);
3472 qemu_wait_io_event_common(env
);
3475 static int qemu_cpu_exec(CPUState
*env
);
3477 static void *kvm_cpu_thread_fn(void *arg
)
3479 CPUState
*env
= arg
;
3481 qemu_thread_self(env
->thread
);
3485 kvm_block_io_signals(env
);
3487 /* signal CPU creation */
3488 qemu_mutex_lock(&qemu_global_mutex
);
3490 qemu_cond_signal(&qemu_cpu_cond
);
3492 /* and wait for machine initialization */
3493 while (!qemu_system_ready
)
3494 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3497 if (cpu_can_run(env
))
3499 qemu_kvm_wait_io_event(env
);
3505 static void tcg_cpu_exec(void);
3507 static void *tcg_cpu_thread_fn(void *arg
)
3509 CPUState
*env
= arg
;
3511 tcg_block_io_signals();
3512 qemu_thread_self(env
->thread
);
3514 /* signal CPU creation */
3515 qemu_mutex_lock(&qemu_global_mutex
);
3516 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3518 qemu_cond_signal(&qemu_cpu_cond
);
3520 /* and wait for machine initialization */
3521 while (!qemu_system_ready
)
3522 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3526 qemu_wait_io_event(cur_cpu
);
3532 void qemu_cpu_kick(void *_env
)
3534 CPUState
*env
= _env
;
3535 qemu_cond_broadcast(env
->halt_cond
);
3537 qemu_thread_signal(env
->thread
, SIG_IPI
);
3540 int qemu_cpu_self(void *_env
)
3542 CPUState
*env
= _env
;
3545 qemu_thread_self(&this);
3547 return qemu_thread_equal(&this, env
->thread
);
3550 static void cpu_signal(int sig
)
3553 cpu_exit(cpu_single_env
);
3556 static void tcg_block_io_signals(void)
3559 struct sigaction sigact
;
3562 sigaddset(&set
, SIGUSR2
);
3563 sigaddset(&set
, SIGIO
);
3564 sigaddset(&set
, SIGALRM
);
3565 sigaddset(&set
, SIGCHLD
);
3566 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3569 sigaddset(&set
, SIG_IPI
);
3570 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3572 memset(&sigact
, 0, sizeof(sigact
));
3573 sigact
.sa_handler
= cpu_signal
;
3574 sigaction(SIG_IPI
, &sigact
, NULL
);
3577 static void dummy_signal(int sig
)
3581 static void kvm_block_io_signals(CPUState
*env
)
3585 struct sigaction sigact
;
3588 sigaddset(&set
, SIGUSR2
);
3589 sigaddset(&set
, SIGIO
);
3590 sigaddset(&set
, SIGALRM
);
3591 sigaddset(&set
, SIGCHLD
);
3592 sigaddset(&set
, SIG_IPI
);
3593 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3595 pthread_sigmask(SIG_BLOCK
, NULL
, &set
);
3596 sigdelset(&set
, SIG_IPI
);
3598 memset(&sigact
, 0, sizeof(sigact
));
3599 sigact
.sa_handler
= dummy_signal
;
3600 sigaction(SIG_IPI
, &sigact
, NULL
);
3602 r
= kvm_set_signal_mask(env
, &set
);
3604 fprintf(stderr
, "kvm_set_signal_mask: %s\n", strerror(r
));
3609 static void unblock_io_signals(void)
3614 sigaddset(&set
, SIGUSR2
);
3615 sigaddset(&set
, SIGIO
);
3616 sigaddset(&set
, SIGALRM
);
3617 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3620 sigaddset(&set
, SIG_IPI
);
3621 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3624 static void qemu_signal_lock(unsigned int msecs
)
3626 qemu_mutex_lock(&qemu_fair_mutex
);
3628 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3629 qemu_thread_signal(tcg_cpu_thread
, SIG_IPI
);
3630 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3633 qemu_mutex_unlock(&qemu_fair_mutex
);
3636 void qemu_mutex_lock_iothread(void)
3638 if (kvm_enabled()) {
3639 qemu_mutex_lock(&qemu_fair_mutex
);
3640 qemu_mutex_lock(&qemu_global_mutex
);
3641 qemu_mutex_unlock(&qemu_fair_mutex
);
3643 qemu_signal_lock(100);
3646 void qemu_mutex_unlock_iothread(void)
3648 qemu_mutex_unlock(&qemu_global_mutex
);
3651 static int all_vcpus_paused(void)
3653 CPUState
*penv
= first_cpu
;
3658 penv
= (CPUState
*)penv
->next_cpu
;
3664 static void pause_all_vcpus(void)
3666 CPUState
*penv
= first_cpu
;
3670 qemu_thread_signal(penv
->thread
, SIG_IPI
);
3671 qemu_cpu_kick(penv
);
3672 penv
= (CPUState
*)penv
->next_cpu
;
3675 while (!all_vcpus_paused()) {
3676 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3679 qemu_thread_signal(penv
->thread
, SIG_IPI
);
3680 penv
= (CPUState
*)penv
->next_cpu
;
3685 static void resume_all_vcpus(void)
3687 CPUState
*penv
= first_cpu
;
3692 qemu_thread_signal(penv
->thread
, SIG_IPI
);
3693 qemu_cpu_kick(penv
);
3694 penv
= (CPUState
*)penv
->next_cpu
;
3698 static void tcg_init_vcpu(void *_env
)
3700 CPUState
*env
= _env
;
3701 /* share a single thread for all cpus with TCG */
3702 if (!tcg_cpu_thread
) {
3703 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3704 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3705 qemu_cond_init(env
->halt_cond
);
3706 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3707 while (env
->created
== 0)
3708 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3709 tcg_cpu_thread
= env
->thread
;
3710 tcg_halt_cond
= env
->halt_cond
;
3712 env
->thread
= tcg_cpu_thread
;
3713 env
->halt_cond
= tcg_halt_cond
;
3717 static void kvm_start_vcpu(CPUState
*env
)
3719 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3720 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3721 qemu_cond_init(env
->halt_cond
);
3722 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3723 while (env
->created
== 0)
3724 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3727 void qemu_init_vcpu(void *_env
)
3729 CPUState
*env
= _env
;
3731 env
->nr_cores
= smp_cores
;
3732 env
->nr_threads
= smp_threads
;
3734 kvm_start_vcpu(env
);
3739 void qemu_notify_event(void)
3741 qemu_event_increment();
3744 void vm_stop(int reason
)
3747 qemu_thread_self(&me
);
3749 if (!qemu_thread_equal(&me
, &io_thread
)) {
3750 qemu_system_vmstop_request(reason
);
3752 * FIXME: should not return to device code in case
3753 * vm_stop() has been requested.
3755 if (cpu_single_env
) {
3756 cpu_exit(cpu_single_env
);
3757 cpu_single_env
->stop
= 1;
3768 static void host_main_loop_wait(int *timeout
)
3774 /* XXX: need to suppress polling by better using win32 events */
3776 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
3777 ret
|= pe
->func(pe
->opaque
);
3781 WaitObjects
*w
= &wait_objects
;
3783 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
3784 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
3785 if (w
->func
[ret
- WAIT_OBJECT_0
])
3786 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
3788 /* Check for additional signaled events */
3789 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
3791 /* Check if event is signaled */
3792 ret2
= WaitForSingleObject(w
->events
[i
], 0);
3793 if(ret2
== WAIT_OBJECT_0
) {
3795 w
->func
[i
](w
->opaque
[i
]);
3796 } else if (ret2
== WAIT_TIMEOUT
) {
3798 err
= GetLastError();
3799 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
3802 } else if (ret
== WAIT_TIMEOUT
) {
3804 err
= GetLastError();
3805 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
3812 static void host_main_loop_wait(int *timeout
)
3817 void main_loop_wait(int timeout
)
3819 IOHandlerRecord
*ioh
;
3820 fd_set rfds
, wfds
, xfds
;
3824 qemu_bh_update_timeout(&timeout
);
3826 host_main_loop_wait(&timeout
);
3828 /* poll any events */
3829 /* XXX: separate device handlers from system ones */
3834 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3838 (!ioh
->fd_read_poll
||
3839 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
3840 FD_SET(ioh
->fd
, &rfds
);
3844 if (ioh
->fd_write
) {
3845 FD_SET(ioh
->fd
, &wfds
);
3851 tv
.tv_sec
= timeout
/ 1000;
3852 tv
.tv_usec
= (timeout
% 1000) * 1000;
3854 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
3856 qemu_mutex_unlock_iothread();
3857 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
3858 qemu_mutex_lock_iothread();
3860 IOHandlerRecord
**pioh
;
3862 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3863 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
3864 ioh
->fd_read(ioh
->opaque
);
3866 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
3867 ioh
->fd_write(ioh
->opaque
);
3871 /* remove deleted IO handlers */
3872 pioh
= &first_io_handler
;
3883 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
3885 /* rearm timer, if not periodic */
3886 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
3887 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
3888 qemu_rearm_alarm_timer(alarm_timer
);
3891 /* vm time timers */
3893 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
3894 qemu_run_timers(&active_timers
[QEMU_CLOCK_VIRTUAL
],
3895 qemu_get_clock(vm_clock
));
3898 /* real time timers */
3899 qemu_run_timers(&active_timers
[QEMU_CLOCK_REALTIME
],
3900 qemu_get_clock(rt_clock
));
3902 qemu_run_timers(&active_timers
[QEMU_CLOCK_HOST
],
3903 qemu_get_clock(host_clock
));
3905 /* Check bottom-halves last in case any of the earlier events triggered
3911 static int qemu_cpu_exec(CPUState
*env
)
3914 #ifdef CONFIG_PROFILER
3918 #ifdef CONFIG_PROFILER
3919 ti
= profile_getclock();
3924 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
3925 env
->icount_decr
.u16
.low
= 0;
3926 env
->icount_extra
= 0;
3927 count
= qemu_next_deadline();
3928 count
= (count
+ (1 << icount_time_shift
) - 1)
3929 >> icount_time_shift
;
3930 qemu_icount
+= count
;
3931 decr
= (count
> 0xffff) ? 0xffff : count
;
3933 env
->icount_decr
.u16
.low
= decr
;
3934 env
->icount_extra
= count
;
3936 ret
= cpu_exec(env
);
3937 #ifdef CONFIG_PROFILER
3938 qemu_time
+= profile_getclock() - ti
;
3941 /* Fold pending instructions back into the
3942 instruction counter, and clear the interrupt flag. */
3943 qemu_icount
-= (env
->icount_decr
.u16
.low
3944 + env
->icount_extra
);
3945 env
->icount_decr
.u32
= 0;
3946 env
->icount_extra
= 0;
3951 static void tcg_cpu_exec(void)
3955 if (next_cpu
== NULL
)
3956 next_cpu
= first_cpu
;
3957 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
3958 CPUState
*env
= cur_cpu
= next_cpu
;
3960 if (timer_alarm_pending
) {
3961 timer_alarm_pending
= 0;
3964 if (cpu_can_run(env
))
3965 ret
= qemu_cpu_exec(env
);
3969 if (ret
== EXCP_DEBUG
) {
3970 gdb_set_stop_cpu(env
);
3971 debug_requested
= 1;
3977 static int cpu_has_work(CPUState
*env
)
3985 if (qemu_cpu_has_work(env
))
3990 static int tcg_has_work(void)
3994 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3995 if (cpu_has_work(env
))
4000 static int qemu_calculate_timeout(void)
4002 #ifndef CONFIG_IOTHREAD
4007 else if (tcg_has_work())
4009 else if (!use_icount
)
4012 /* XXX: use timeout computed from timers */
4015 /* Advance virtual time to the next event. */
4016 if (use_icount
== 1) {
4017 /* When not using an adaptive execution frequency
4018 we tend to get badly out of sync with real time,
4019 so just delay for a reasonable amount of time. */
4022 delta
= cpu_get_icount() - cpu_get_clock();
4025 /* If virtual time is ahead of real time then just
4027 timeout
= (delta
/ 1000000) + 1;
4029 /* Wait for either IO to occur or the next
4031 add
= qemu_next_deadline();
4032 /* We advance the timer before checking for IO.
4033 Limit the amount we advance so that early IO
4034 activity won't get the guest too far ahead. */
4038 add
= (add
+ (1 << icount_time_shift
) - 1)
4039 >> icount_time_shift
;
4041 timeout
= delta
/ 1000000;
4048 #else /* CONFIG_IOTHREAD */
4053 static int vm_can_run(void)
4055 if (powerdown_requested
)
4057 if (reset_requested
)
4059 if (shutdown_requested
)
4061 if (debug_requested
)
4066 qemu_irq qemu_system_powerdown
;
4068 static void main_loop(void)
4072 #ifdef CONFIG_IOTHREAD
4073 qemu_system_ready
= 1;
4074 qemu_cond_broadcast(&qemu_system_cond
);
4079 #ifdef CONFIG_PROFILER
4082 #ifndef CONFIG_IOTHREAD
4085 #ifdef CONFIG_PROFILER
4086 ti
= profile_getclock();
4088 main_loop_wait(qemu_calculate_timeout());
4089 #ifdef CONFIG_PROFILER
4090 dev_time
+= profile_getclock() - ti
;
4092 } while (vm_can_run());
4094 if (qemu_debug_requested()) {
4095 vm_stop(EXCP_DEBUG
);
4097 if (qemu_shutdown_requested()) {
4098 monitor_protocol_event(QEVENT_SHUTDOWN
, NULL
);
4105 if (qemu_reset_requested()) {
4107 qemu_system_reset();
4110 if (qemu_powerdown_requested()) {
4111 monitor_protocol_event(QEVENT_POWERDOWN
, NULL
);
4112 qemu_irq_raise(qemu_system_powerdown
);
4114 if ((r
= qemu_vmstop_requested())) {
4121 static void version(void)
4123 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4126 static void help(int exitcode
)
4128 const char *options_help
=
4129 #define DEF(option, opt_arg, opt_enum, opt_help) \
4131 #define DEFHEADING(text) stringify(text) "\n"
4132 #include "qemu-options.h"
4138 printf("usage: %s [options] [disk_image]\n"
4140 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4143 "During emulation, the following keys are useful:\n"
4144 "ctrl-alt-f toggle full screen\n"
4145 "ctrl-alt-n switch to virtual console 'n'\n"
4146 "ctrl-alt toggle mouse and keyboard grab\n"
4148 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4154 #define HAS_ARG 0x0001
4157 #define DEF(option, opt_arg, opt_enum, opt_help) \
4159 #define DEFHEADING(text)
4160 #include "qemu-options.h"
4166 typedef struct QEMUOption
{
4172 static const QEMUOption qemu_options
[] = {
4173 { "h", 0, QEMU_OPTION_h
},
4174 #define DEF(option, opt_arg, opt_enum, opt_help) \
4175 { option, opt_arg, opt_enum },
4176 #define DEFHEADING(text)
4177 #include "qemu-options.h"
4185 struct soundhw soundhw
[] = {
4186 #ifdef HAS_AUDIO_CHOICE
4187 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4193 { .init_isa
= pcspk_audio_init
}
4200 "Creative Sound Blaster 16",
4203 { .init_isa
= SB16_init
}
4207 #ifdef CONFIG_CS4231A
4213 { .init_isa
= cs4231a_init
}
4221 "Yamaha YMF262 (OPL3)",
4223 "Yamaha YM3812 (OPL2)",
4227 { .init_isa
= Adlib_init
}
4234 "Gravis Ultrasound GF1",
4237 { .init_isa
= GUS_init
}
4244 "Intel 82801AA AC97 Audio",
4247 { .init_pci
= ac97_init
}
4251 #ifdef CONFIG_ES1370
4254 "ENSONIQ AudioPCI ES1370",
4257 { .init_pci
= es1370_init
}
4261 #endif /* HAS_AUDIO_CHOICE */
4263 { NULL
, NULL
, 0, 0, { NULL
} }
4266 static void select_soundhw (const char *optarg
)
4270 if (*optarg
== '?') {
4273 printf ("Valid sound card names (comma separated):\n");
4274 for (c
= soundhw
; c
->name
; ++c
) {
4275 printf ("%-11s %s\n", c
->name
, c
->descr
);
4277 printf ("\n-soundhw all will enable all of the above\n");
4278 exit (*optarg
!= '?');
4286 if (!strcmp (optarg
, "all")) {
4287 for (c
= soundhw
; c
->name
; ++c
) {
4295 e
= strchr (p
, ',');
4296 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4298 for (c
= soundhw
; c
->name
; ++c
) {
4299 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
4308 "Unknown sound card name (too big to show)\n");
4311 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4316 p
+= l
+ (e
!= NULL
);
4320 goto show_valid_cards
;
4325 static void select_vgahw (const char *p
)
4330 vga_interface_type
= VGA_NONE
;
4331 if (strstart(p
, "std", &opts
)) {
4332 vga_interface_type
= VGA_STD
;
4333 } else if (strstart(p
, "cirrus", &opts
)) {
4334 vga_interface_type
= VGA_CIRRUS
;
4335 } else if (strstart(p
, "vmware", &opts
)) {
4336 vga_interface_type
= VGA_VMWARE
;
4337 } else if (strstart(p
, "xenfb", &opts
)) {
4338 vga_interface_type
= VGA_XENFB
;
4339 } else if (!strstart(p
, "none", &opts
)) {
4341 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4345 const char *nextopt
;
4347 if (strstart(opts
, ",retrace=", &nextopt
)) {
4349 if (strstart(opts
, "dumb", &nextopt
))
4350 vga_retrace_method
= VGA_RETRACE_DUMB
;
4351 else if (strstart(opts
, "precise", &nextopt
))
4352 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4353 else goto invalid_vga
;
4354 } else goto invalid_vga
;
4360 static int balloon_parse(const char *arg
)
4364 if (strcmp(arg
, "none") == 0) {
4368 if (!strncmp(arg
, "virtio", 6)) {
4369 if (arg
[6] == ',') {
4370 /* have params -> parse them */
4371 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, 0);
4375 /* create empty opts */
4376 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4378 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
4387 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4389 exit(STATUS_CONTROL_C_EXIT
);
4394 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4398 if(strlen(str
) != 36)
4401 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4402 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4403 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4409 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4417 static void termsig_handler(int signal
)
4419 qemu_system_shutdown_request();
4422 static void sigchld_handler(int signal
)
4424 waitpid(-1, NULL
, WNOHANG
);
4427 static void sighandler_setup(void)
4429 struct sigaction act
;
4431 memset(&act
, 0, sizeof(act
));
4432 act
.sa_handler
= termsig_handler
;
4433 sigaction(SIGINT
, &act
, NULL
);
4434 sigaction(SIGHUP
, &act
, NULL
);
4435 sigaction(SIGTERM
, &act
, NULL
);
4437 act
.sa_handler
= sigchld_handler
;
4438 act
.sa_flags
= SA_NOCLDSTOP
;
4439 sigaction(SIGCHLD
, &act
, NULL
);
4445 /* Look for support files in the same directory as the executable. */
4446 static char *find_datadir(const char *argv0
)
4452 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4459 while (p
!= buf
&& *p
!= '\\')
4462 if (access(buf
, R_OK
) == 0) {
4463 return qemu_strdup(buf
);
4469 /* Find a likely location for support files using the location of the binary.
4470 For installed binaries this will be "$bindir/../share/qemu". When
4471 running from the build tree this will be "$bindir/../pc-bios". */
4472 #define SHARE_SUFFIX "/share/qemu"
4473 #define BUILD_SUFFIX "/pc-bios"
4474 static char *find_datadir(const char *argv0
)
4482 #if defined(__linux__)
4485 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4491 #elif defined(__FreeBSD__)
4494 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4501 /* If we don't have any way of figuring out the actual executable
4502 location then try argv[0]. */
4504 p
= realpath(argv0
, buf
);
4512 max_len
= strlen(dir
) +
4513 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4514 res
= qemu_mallocz(max_len
);
4515 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4516 if (access(res
, R_OK
)) {
4517 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4518 if (access(res
, R_OK
)) {
4530 char *qemu_find_file(int type
, const char *name
)
4536 /* If name contains path separators then try it as a straight path. */
4537 if ((strchr(name
, '/') || strchr(name
, '\\'))
4538 && access(name
, R_OK
) == 0) {
4539 return qemu_strdup(name
);
4542 case QEMU_FILE_TYPE_BIOS
:
4545 case QEMU_FILE_TYPE_KEYMAP
:
4546 subdir
= "keymaps/";
4551 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4552 buf
= qemu_mallocz(len
);
4553 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4554 if (access(buf
, R_OK
)) {
4561 static int device_help_func(QemuOpts
*opts
, void *opaque
)
4563 return qdev_device_help(opts
);
4566 static int device_init_func(QemuOpts
*opts
, void *opaque
)
4570 dev
= qdev_device_add(opts
);
4576 static int chardev_init_func(QemuOpts
*opts
, void *opaque
)
4578 CharDriverState
*chr
;
4580 chr
= qemu_chr_open_opts(opts
, NULL
);
4586 static int mon_init_func(QemuOpts
*opts
, void *opaque
)
4588 CharDriverState
*chr
;
4589 const char *chardev
;
4593 mode
= qemu_opt_get(opts
, "mode");
4597 if (strcmp(mode
, "readline") == 0) {
4598 flags
= MONITOR_USE_READLINE
;
4599 } else if (strcmp(mode
, "control") == 0) {
4600 flags
= MONITOR_USE_CONTROL
;
4602 fprintf(stderr
, "unknown monitor mode \"%s\"\n", mode
);
4606 if (qemu_opt_get_bool(opts
, "default", 0))
4607 flags
|= MONITOR_IS_DEFAULT
;
4609 chardev
= qemu_opt_get(opts
, "chardev");
4610 chr
= qemu_chr_find(chardev
);
4612 fprintf(stderr
, "chardev \"%s\" not found\n", chardev
);
4616 monitor_init(chr
, flags
);
4620 static void monitor_parse(const char *optarg
, const char *mode
)
4622 static int monitor_device_index
= 0;
4628 if (strstart(optarg
, "chardev:", &p
)) {
4629 snprintf(label
, sizeof(label
), "%s", p
);
4631 if (monitor_device_index
) {
4632 snprintf(label
, sizeof(label
), "monitor%d",
4633 monitor_device_index
);
4635 snprintf(label
, sizeof(label
), "monitor");
4638 opts
= qemu_chr_parse_compat(label
, optarg
);
4640 fprintf(stderr
, "parse error: %s\n", optarg
);
4645 opts
= qemu_opts_create(&qemu_mon_opts
, label
, 1);
4647 fprintf(stderr
, "duplicate chardev: %s\n", label
);
4650 qemu_opt_set(opts
, "mode", mode
);
4651 qemu_opt_set(opts
, "chardev", label
);
4653 qemu_opt_set(opts
, "default", "on");
4654 monitor_device_index
++;
4657 struct device_config
{
4659 DEV_USB
, /* -usbdevice */
4661 DEV_SERIAL
, /* -serial */
4662 DEV_PARALLEL
, /* -parallel */
4663 DEV_VIRTCON
, /* -virtioconsole */
4664 DEV_DEBUGCON
, /* -debugcon */
4666 const char *cmdline
;
4667 QTAILQ_ENTRY(device_config
) next
;
4669 QTAILQ_HEAD(, device_config
) device_configs
= QTAILQ_HEAD_INITIALIZER(device_configs
);
4671 static void add_device_config(int type
, const char *cmdline
)
4673 struct device_config
*conf
;
4675 conf
= qemu_mallocz(sizeof(*conf
));
4677 conf
->cmdline
= cmdline
;
4678 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
4681 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
4683 struct device_config
*conf
;
4686 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
4687 if (conf
->type
!= type
)
4689 rc
= func(conf
->cmdline
);
4696 static int serial_parse(const char *devname
)
4698 static int index
= 0;
4701 if (strcmp(devname
, "none") == 0)
4703 if (index
== MAX_SERIAL_PORTS
) {
4704 fprintf(stderr
, "qemu: too many serial ports\n");
4707 snprintf(label
, sizeof(label
), "serial%d", index
);
4708 serial_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4709 if (!serial_hds
[index
]) {
4710 fprintf(stderr
, "qemu: could not open serial device '%s': %s\n",
4711 devname
, strerror(errno
));
4718 static int parallel_parse(const char *devname
)
4720 static int index
= 0;
4723 if (strcmp(devname
, "none") == 0)
4725 if (index
== MAX_PARALLEL_PORTS
) {
4726 fprintf(stderr
, "qemu: too many parallel ports\n");
4729 snprintf(label
, sizeof(label
), "parallel%d", index
);
4730 parallel_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4731 if (!parallel_hds
[index
]) {
4732 fprintf(stderr
, "qemu: could not open parallel device '%s': %s\n",
4733 devname
, strerror(errno
));
4740 static int virtcon_parse(const char *devname
)
4742 static int index
= 0;
4744 QemuOpts
*bus_opts
, *dev_opts
;
4746 if (strcmp(devname
, "none") == 0)
4748 if (index
== MAX_VIRTIO_CONSOLES
) {
4749 fprintf(stderr
, "qemu: too many virtio consoles\n");
4753 bus_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4754 qemu_opt_set(bus_opts
, "driver", "virtio-serial");
4756 dev_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4757 qemu_opt_set(dev_opts
, "driver", "virtconsole");
4759 snprintf(label
, sizeof(label
), "virtcon%d", index
);
4760 virtcon_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
4761 if (!virtcon_hds
[index
]) {
4762 fprintf(stderr
, "qemu: could not open virtio console '%s': %s\n",
4763 devname
, strerror(errno
));
4766 qemu_opt_set(dev_opts
, "chardev", label
);
4772 static int debugcon_parse(const char *devname
)
4776 if (!qemu_chr_open("debugcon", devname
, NULL
)) {
4779 opts
= qemu_opts_create(&qemu_device_opts
, "debugcon", 1);
4781 fprintf(stderr
, "qemu: already have a debugcon device\n");
4784 qemu_opt_set(opts
, "driver", "isa-debugcon");
4785 qemu_opt_set(opts
, "chardev", "debugcon");
4789 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
4790 const char **poptarg
, int *poptind
)
4792 const QEMUOption
*popt
;
4793 int optind
= *poptind
;
4794 char *r
= argv
[optind
];
4797 loc_set_cmdline(argv
, optind
, 1);
4799 /* Treat --foo the same as -foo. */
4802 popt
= qemu_options
;
4805 error_report("invalid option");
4808 if (!strcmp(popt
->name
, r
+ 1))
4812 if (popt
->flags
& HAS_ARG
) {
4813 if (optind
>= argc
) {
4814 error_report("requires an argument");
4817 optarg
= argv
[optind
++];
4818 loc_set_cmdline(argv
, optind
- 2, 2);
4829 int main(int argc
, char **argv
, char **envp
)
4831 const char *gdbstub_dev
= NULL
;
4832 uint32_t boot_devices_bitmap
= 0;
4834 int snapshot
, linux_boot
, net_boot
;
4835 const char *initrd_filename
;
4836 const char *kernel_filename
, *kernel_cmdline
;
4837 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4839 DisplayChangeListener
*dcl
;
4840 int cyls
, heads
, secs
, translation
;
4841 QemuOpts
*hda_opts
= NULL
, *opts
;
4844 const char *loadvm
= NULL
;
4845 QEMUMachine
*machine
;
4846 const char *cpu_model
;
4851 const char *pid_file
= NULL
;
4852 const char *incoming
= NULL
;
4855 struct passwd
*pwd
= NULL
;
4856 const char *chroot_dir
= NULL
;
4857 const char *run_as
= NULL
;
4860 int show_vnc_port
= 0;
4863 error_set_progname(argv
[0]);
4867 qemu_cache_utils_init(envp
);
4869 QLIST_INIT (&vm_change_state_head
);
4872 struct sigaction act
;
4873 sigfillset(&act
.sa_mask
);
4875 act
.sa_handler
= SIG_IGN
;
4876 sigaction(SIGPIPE
, &act
, NULL
);
4879 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4880 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4881 QEMU to run on a single CPU */
4886 h
= GetCurrentProcess();
4887 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4888 for(i
= 0; i
< 32; i
++) {
4889 if (mask
& (1 << i
))
4894 SetProcessAffinityMask(h
, mask
);
4900 module_call_init(MODULE_INIT_MACHINE
);
4901 machine
= find_default_machine();
4903 initrd_filename
= NULL
;
4906 kernel_filename
= NULL
;
4907 kernel_cmdline
= "";
4908 cyls
= heads
= secs
= 0;
4909 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4911 for (i
= 0; i
< MAX_NODES
; i
++) {
4913 node_cpumask
[i
] = 0;
4922 /* first pass of option parsing */
4924 while (optind
< argc
) {
4925 if (argv
[optind
][0] != '-') {
4930 const QEMUOption
*popt
;
4932 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
4933 switch (popt
->index
) {
4934 case QEMU_OPTION_nodefconfig
:
4945 fname
= CONFIG_QEMU_CONFDIR
"/qemu.conf";
4946 fp
= fopen(fname
, "r");
4948 if (qemu_config_parse(fp
, fname
) != 0) {
4954 fname
= CONFIG_QEMU_CONFDIR
"/target-" TARGET_ARCH
".conf";
4955 fp
= fopen(fname
, "r");
4957 if (qemu_config_parse(fp
, fname
) != 0) {
4963 #if defined(cpudef_setup)
4964 cpudef_setup(); /* parse cpu definitions in target config file */
4967 /* second pass of option parsing */
4972 if (argv
[optind
][0] != '-') {
4973 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4975 const QEMUOption
*popt
;
4977 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
4978 switch(popt
->index
) {
4980 machine
= find_machine(optarg
);
4983 printf("Supported machines are:\n");
4984 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4986 printf("%-10s %s (alias of %s)\n",
4987 m
->alias
, m
->desc
, m
->name
);
4988 printf("%-10s %s%s\n",
4990 m
->is_default
? " (default)" : "");
4992 exit(*optarg
!= '?');
4995 case QEMU_OPTION_cpu
:
4996 /* hw initialization will check this */
4997 if (*optarg
== '?') {
4998 /* XXX: implement xxx_cpu_list for targets that still miss it */
4999 #if defined(cpu_list_id)
5000 cpu_list_id(stdout
, &fprintf
, optarg
);
5001 #elif defined(cpu_list)
5002 cpu_list(stdout
, &fprintf
); /* deprecated */
5009 case QEMU_OPTION_initrd
:
5010 initrd_filename
= optarg
;
5012 case QEMU_OPTION_hda
:
5014 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
5016 hda_opts
= drive_add(optarg
, HD_ALIAS
5017 ",cyls=%d,heads=%d,secs=%d%s",
5018 0, cyls
, heads
, secs
,
5019 translation
== BIOS_ATA_TRANSLATION_LBA
?
5021 translation
== BIOS_ATA_TRANSLATION_NONE
?
5022 ",trans=none" : "");
5024 case QEMU_OPTION_hdb
:
5025 case QEMU_OPTION_hdc
:
5026 case QEMU_OPTION_hdd
:
5027 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
5029 case QEMU_OPTION_drive
:
5030 drive_add(NULL
, "%s", optarg
);
5032 case QEMU_OPTION_set
:
5033 if (qemu_set_option(optarg
) != 0)
5036 case QEMU_OPTION_global
:
5037 if (qemu_global_option(optarg
) != 0)
5040 case QEMU_OPTION_mtdblock
:
5041 drive_add(optarg
, MTD_ALIAS
);
5043 case QEMU_OPTION_sd
:
5044 drive_add(optarg
, SD_ALIAS
);
5046 case QEMU_OPTION_pflash
:
5047 drive_add(optarg
, PFLASH_ALIAS
);
5049 case QEMU_OPTION_snapshot
:
5052 case QEMU_OPTION_hdachs
:
5056 cyls
= strtol(p
, (char **)&p
, 0);
5057 if (cyls
< 1 || cyls
> 16383)
5062 heads
= strtol(p
, (char **)&p
, 0);
5063 if (heads
< 1 || heads
> 16)
5068 secs
= strtol(p
, (char **)&p
, 0);
5069 if (secs
< 1 || secs
> 63)
5073 if (!strcmp(p
, "none"))
5074 translation
= BIOS_ATA_TRANSLATION_NONE
;
5075 else if (!strcmp(p
, "lba"))
5076 translation
= BIOS_ATA_TRANSLATION_LBA
;
5077 else if (!strcmp(p
, "auto"))
5078 translation
= BIOS_ATA_TRANSLATION_AUTO
;
5081 } else if (*p
!= '\0') {
5083 fprintf(stderr
, "qemu: invalid physical CHS format\n");
5086 if (hda_opts
!= NULL
) {
5088 snprintf(num
, sizeof(num
), "%d", cyls
);
5089 qemu_opt_set(hda_opts
, "cyls", num
);
5090 snprintf(num
, sizeof(num
), "%d", heads
);
5091 qemu_opt_set(hda_opts
, "heads", num
);
5092 snprintf(num
, sizeof(num
), "%d", secs
);
5093 qemu_opt_set(hda_opts
, "secs", num
);
5094 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
5095 qemu_opt_set(hda_opts
, "trans", "lba");
5096 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
5097 qemu_opt_set(hda_opts
, "trans", "none");
5101 case QEMU_OPTION_numa
:
5102 if (nb_numa_nodes
>= MAX_NODES
) {
5103 fprintf(stderr
, "qemu: too many NUMA nodes\n");
5108 case QEMU_OPTION_nographic
:
5109 display_type
= DT_NOGRAPHIC
;
5111 #ifdef CONFIG_CURSES
5112 case QEMU_OPTION_curses
:
5113 display_type
= DT_CURSES
;
5116 case QEMU_OPTION_portrait
:
5119 case QEMU_OPTION_kernel
:
5120 kernel_filename
= optarg
;
5122 case QEMU_OPTION_append
:
5123 kernel_cmdline
= optarg
;
5125 case QEMU_OPTION_cdrom
:
5126 drive_add(optarg
, CDROM_ALIAS
);
5128 case QEMU_OPTION_boot
:
5130 static const char * const params
[] = {
5131 "order", "once", "menu", NULL
5133 char buf
[sizeof(boot_devices
)];
5134 char *standard_boot_devices
;
5137 if (!strchr(optarg
, '=')) {
5139 pstrcpy(buf
, sizeof(buf
), optarg
);
5140 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
5142 "qemu: unknown boot parameter '%s' in '%s'\n",
5148 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
5149 boot_devices_bitmap
= parse_bootdevices(buf
);
5150 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
5153 if (get_param_value(buf
, sizeof(buf
),
5155 boot_devices_bitmap
|= parse_bootdevices(buf
);
5156 standard_boot_devices
= qemu_strdup(boot_devices
);
5157 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
5158 qemu_register_reset(restore_boot_devices
,
5159 standard_boot_devices
);
5161 if (get_param_value(buf
, sizeof(buf
),
5163 if (!strcmp(buf
, "on")) {
5165 } else if (!strcmp(buf
, "off")) {
5169 "qemu: invalid option value '%s'\n",
5177 case QEMU_OPTION_fda
:
5178 case QEMU_OPTION_fdb
:
5179 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
5182 case QEMU_OPTION_no_fd_bootchk
:
5186 case QEMU_OPTION_netdev
:
5187 if (net_client_parse(&qemu_netdev_opts
, optarg
) == -1) {
5191 case QEMU_OPTION_net
:
5192 if (net_client_parse(&qemu_net_opts
, optarg
) == -1) {
5197 case QEMU_OPTION_tftp
:
5198 legacy_tftp_prefix
= optarg
;
5200 case QEMU_OPTION_bootp
:
5201 legacy_bootp_filename
= optarg
;
5204 case QEMU_OPTION_smb
:
5205 if (net_slirp_smb(optarg
) < 0)
5209 case QEMU_OPTION_redir
:
5210 if (net_slirp_redir(optarg
) < 0)
5214 case QEMU_OPTION_bt
:
5215 add_device_config(DEV_BT
, optarg
);
5218 case QEMU_OPTION_audio_help
:
5222 case QEMU_OPTION_soundhw
:
5223 select_soundhw (optarg
);
5229 case QEMU_OPTION_version
:
5233 case QEMU_OPTION_m
: {
5237 value
= strtoul(optarg
, &ptr
, 10);
5239 case 0: case 'M': case 'm':
5246 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5250 /* On 32-bit hosts, QEMU is limited by virtual address space */
5251 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
5252 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5255 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5256 fprintf(stderr
, "qemu: ram size too large\n");
5262 case QEMU_OPTION_mempath
:
5266 case QEMU_OPTION_mem_prealloc
:
5273 const CPULogItem
*item
;
5275 mask
= cpu_str_to_log_mask(optarg
);
5277 printf("Log items (comma separated):\n");
5278 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5279 printf("%-10s %s\n", item
->name
, item
->help
);
5287 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5289 case QEMU_OPTION_gdb
:
5290 gdbstub_dev
= optarg
;
5295 case QEMU_OPTION_bios
:
5298 case QEMU_OPTION_singlestep
:
5305 keyboard_layout
= optarg
;
5307 case QEMU_OPTION_localtime
:
5310 case QEMU_OPTION_vga
:
5311 select_vgahw (optarg
);
5313 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5319 w
= strtol(p
, (char **)&p
, 10);
5322 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5328 h
= strtol(p
, (char **)&p
, 10);
5333 depth
= strtol(p
, (char **)&p
, 10);
5334 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5335 depth
!= 24 && depth
!= 32)
5337 } else if (*p
== '\0') {
5338 depth
= graphic_depth
;
5345 graphic_depth
= depth
;
5349 case QEMU_OPTION_echr
:
5352 term_escape_char
= strtol(optarg
, &r
, 0);
5354 printf("Bad argument to echr\n");
5357 case QEMU_OPTION_monitor
:
5358 monitor_parse(optarg
, "readline");
5359 default_monitor
= 0;
5361 case QEMU_OPTION_qmp
:
5362 monitor_parse(optarg
, "control");
5363 default_monitor
= 0;
5365 case QEMU_OPTION_mon
:
5366 opts
= qemu_opts_parse(&qemu_mon_opts
, optarg
, 1);
5368 fprintf(stderr
, "parse error: %s\n", optarg
);
5371 default_monitor
= 0;
5373 case QEMU_OPTION_chardev
:
5374 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, 1);
5376 fprintf(stderr
, "parse error: %s\n", optarg
);
5380 case QEMU_OPTION_serial
:
5381 add_device_config(DEV_SERIAL
, optarg
);
5383 if (strncmp(optarg
, "mon:", 4) == 0) {
5384 default_monitor
= 0;
5387 case QEMU_OPTION_watchdog
:
5390 "qemu: only one watchdog option may be given\n");
5395 case QEMU_OPTION_watchdog_action
:
5396 if (select_watchdog_action(optarg
) == -1) {
5397 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5401 case QEMU_OPTION_virtiocon
:
5402 add_device_config(DEV_VIRTCON
, optarg
);
5403 default_virtcon
= 0;
5404 if (strncmp(optarg
, "mon:", 4) == 0) {
5405 default_monitor
= 0;
5408 case QEMU_OPTION_parallel
:
5409 add_device_config(DEV_PARALLEL
, optarg
);
5410 default_parallel
= 0;
5411 if (strncmp(optarg
, "mon:", 4) == 0) {
5412 default_monitor
= 0;
5415 case QEMU_OPTION_debugcon
:
5416 add_device_config(DEV_DEBUGCON
, optarg
);
5418 case QEMU_OPTION_loadvm
:
5421 case QEMU_OPTION_full_screen
:
5425 case QEMU_OPTION_no_frame
:
5428 case QEMU_OPTION_alt_grab
:
5431 case QEMU_OPTION_ctrl_grab
:
5434 case QEMU_OPTION_no_quit
:
5437 case QEMU_OPTION_sdl
:
5438 display_type
= DT_SDL
;
5441 case QEMU_OPTION_pidfile
:
5445 case QEMU_OPTION_win2k_hack
:
5446 win2k_install_hack
= 1;
5448 case QEMU_OPTION_rtc_td_hack
:
5451 case QEMU_OPTION_acpitable
:
5452 if(acpi_table_add(optarg
) < 0) {
5453 fprintf(stderr
, "Wrong acpi table provided\n");
5457 case QEMU_OPTION_smbios
:
5458 if(smbios_entry_add(optarg
) < 0) {
5459 fprintf(stderr
, "Wrong smbios provided\n");
5465 case QEMU_OPTION_enable_kvm
:
5469 case QEMU_OPTION_usb
:
5472 case QEMU_OPTION_usbdevice
:
5474 add_device_config(DEV_USB
, optarg
);
5476 case QEMU_OPTION_device
:
5477 if (!qemu_opts_parse(&qemu_device_opts
, optarg
, 1)) {
5481 case QEMU_OPTION_smp
:
5484 fprintf(stderr
, "Invalid number of CPUs\n");
5487 if (max_cpus
< smp_cpus
) {
5488 fprintf(stderr
, "maxcpus must be equal to or greater than "
5492 if (max_cpus
> 255) {
5493 fprintf(stderr
, "Unsupported number of maxcpus\n");
5497 case QEMU_OPTION_vnc
:
5498 display_type
= DT_VNC
;
5499 vnc_display
= optarg
;
5502 case QEMU_OPTION_no_acpi
:
5505 case QEMU_OPTION_no_hpet
:
5508 case QEMU_OPTION_balloon
:
5509 if (balloon_parse(optarg
) < 0) {
5510 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5515 case QEMU_OPTION_no_reboot
:
5518 case QEMU_OPTION_no_shutdown
:
5521 case QEMU_OPTION_show_cursor
:
5524 case QEMU_OPTION_uuid
:
5525 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5526 fprintf(stderr
, "Fail to parse UUID string."
5527 " Wrong format.\n");
5532 case QEMU_OPTION_daemonize
:
5536 case QEMU_OPTION_option_rom
:
5537 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5538 fprintf(stderr
, "Too many option ROMs\n");
5541 option_rom
[nb_option_roms
] = optarg
;
5544 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5545 case QEMU_OPTION_semihosting
:
5546 semihosting_enabled
= 1;
5549 case QEMU_OPTION_name
:
5550 qemu_name
= qemu_strdup(optarg
);
5552 char *p
= strchr(qemu_name
, ',');
5555 if (strncmp(p
, "process=", 8)) {
5556 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5564 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5565 case QEMU_OPTION_prom_env
:
5566 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5567 fprintf(stderr
, "Too many prom variables\n");
5570 prom_envs
[nb_prom_envs
] = optarg
;
5575 case QEMU_OPTION_old_param
:
5579 case QEMU_OPTION_clock
:
5580 configure_alarms(optarg
);
5582 case QEMU_OPTION_startdate
:
5583 configure_rtc_date_offset(optarg
, 1);
5585 case QEMU_OPTION_rtc
:
5586 opts
= qemu_opts_parse(&qemu_rtc_opts
, optarg
, 0);
5588 fprintf(stderr
, "parse error: %s\n", optarg
);
5591 configure_rtc(opts
);
5593 case QEMU_OPTION_tb_size
:
5594 tb_size
= strtol(optarg
, NULL
, 0);
5598 case QEMU_OPTION_icount
:
5600 if (strcmp(optarg
, "auto") == 0) {
5601 icount_time_shift
= -1;
5603 icount_time_shift
= strtol(optarg
, NULL
, 0);
5606 case QEMU_OPTION_incoming
:
5609 case QEMU_OPTION_nodefaults
:
5611 default_parallel
= 0;
5612 default_virtcon
= 0;
5613 default_monitor
= 0;
5621 case QEMU_OPTION_chroot
:
5622 chroot_dir
= optarg
;
5624 case QEMU_OPTION_runas
:
5629 case QEMU_OPTION_xen_domid
:
5630 xen_domid
= atoi(optarg
);
5632 case QEMU_OPTION_xen_create
:
5633 xen_mode
= XEN_CREATE
;
5635 case QEMU_OPTION_xen_attach
:
5636 xen_mode
= XEN_ATTACH
;
5639 case QEMU_OPTION_readconfig
:
5642 fp
= fopen(optarg
, "r");
5644 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5647 if (qemu_config_parse(fp
, optarg
) != 0) {
5653 case QEMU_OPTION_writeconfig
:
5656 if (strcmp(optarg
, "-") == 0) {
5659 fp
= fopen(optarg
, "w");
5661 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
5665 qemu_config_write(fp
);
5674 /* If no data_dir is specified then try to find it relative to the
5677 data_dir
= find_datadir(argv
[0]);
5679 /* If all else fails use the install patch specified when building. */
5681 data_dir
= CONFIG_QEMU_SHAREDIR
;
5685 * Default to max_cpus = smp_cpus, in case the user doesn't
5686 * specify a max_cpus value.
5689 max_cpus
= smp_cpus
;
5691 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5692 if (smp_cpus
> machine
->max_cpus
) {
5693 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5694 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5699 qemu_opts_foreach(&qemu_device_opts
, default_driver_check
, NULL
, 0);
5700 qemu_opts_foreach(&qemu_global_opts
, default_driver_check
, NULL
, 0);
5702 if (machine
->no_serial
) {
5705 if (machine
->no_parallel
) {
5706 default_parallel
= 0;
5708 if (!machine
->use_virtcon
) {
5709 default_virtcon
= 0;
5711 if (machine
->no_vga
) {
5714 if (machine
->no_floppy
) {
5717 if (machine
->no_cdrom
) {
5720 if (machine
->no_sdcard
) {
5724 if (display_type
== DT_NOGRAPHIC
) {
5725 if (default_parallel
)
5726 add_device_config(DEV_PARALLEL
, "null");
5727 if (default_serial
&& default_monitor
) {
5728 add_device_config(DEV_SERIAL
, "mon:stdio");
5729 } else if (default_virtcon
&& default_monitor
) {
5730 add_device_config(DEV_VIRTCON
, "mon:stdio");
5733 add_device_config(DEV_SERIAL
, "stdio");
5734 if (default_virtcon
)
5735 add_device_config(DEV_VIRTCON
, "stdio");
5736 if (default_monitor
)
5737 monitor_parse("stdio", "readline");
5741 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
5742 if (default_parallel
)
5743 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
5744 if (default_monitor
)
5745 monitor_parse("vc:80Cx24C", "readline");
5746 if (default_virtcon
)
5747 add_device_config(DEV_VIRTCON
, "vc:80Cx24C");
5750 vga_interface_type
= VGA_CIRRUS
;
5752 if (qemu_opts_foreach(&qemu_chardev_opts
, chardev_init_func
, NULL
, 1) != 0)
5759 if (pipe(fds
) == -1)
5770 len
= read(fds
[0], &status
, 1);
5771 if (len
== -1 && (errno
== EINTR
))
5776 else if (status
== 1) {
5777 fprintf(stderr
, "Could not acquire pidfile: %s\n", strerror(errno
));
5785 qemu_set_cloexec(fds
[1]);
5797 signal(SIGTSTP
, SIG_IGN
);
5798 signal(SIGTTOU
, SIG_IGN
);
5799 signal(SIGTTIN
, SIG_IGN
);
5803 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5807 if (write(fds
[1], &status
, 1) != 1) {
5808 perror("daemonize. Writing to pipe\n");
5812 fprintf(stderr
, "Could not acquire pid file: %s\n", strerror(errno
));
5816 if (kvm_enabled()) {
5819 ret
= kvm_init(smp_cpus
);
5821 fprintf(stderr
, "failed to initialize KVM\n");
5826 if (qemu_init_main_loop()) {
5827 fprintf(stderr
, "qemu_init_main_loop failed\n");
5830 linux_boot
= (kernel_filename
!= NULL
);
5832 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5833 fprintf(stderr
, "-append only allowed with -kernel option\n");
5837 if (!linux_boot
&& initrd_filename
!= NULL
) {
5838 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5843 /* Win32 doesn't support line-buffering and requires size >= 2 */
5844 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5847 if (init_timer_alarm() < 0) {
5848 fprintf(stderr
, "could not initialize alarm timer\n");
5851 if (use_icount
&& icount_time_shift
< 0) {
5853 /* 125MIPS seems a reasonable initial guess at the guest speed.
5854 It will be corrected fairly quickly anyway. */
5855 icount_time_shift
= 3;
5856 init_icount_adjust();
5863 if (net_init_clients() < 0) {
5867 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5868 net_set_boot_mask(net_boot
);
5870 /* init the bluetooth world */
5871 if (foreach_device_config(DEV_BT
, bt_parse
))
5874 /* init the memory */
5876 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5878 /* init the dynamic translator */
5879 cpu_exec_init_all(tb_size
* 1024 * 1024);
5881 bdrv_init_with_whitelist();
5885 if (default_cdrom
) {
5886 /* we always create the cdrom drive, even if no disk is there */
5887 drive_add(NULL
, CDROM_ALIAS
);
5890 if (default_floppy
) {
5891 /* we always create at least one floppy */
5892 drive_add(NULL
, FD_ALIAS
, 0);
5895 if (default_sdcard
) {
5896 /* we always create one sd slot, even if no card is in it */
5897 drive_add(NULL
, SD_ALIAS
);
5900 /* open the virtual block devices */
5902 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
5903 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
5906 vmstate_register(0, &vmstate_timers
,&timers_state
);
5907 register_savevm_live("ram", 0, 3, NULL
, ram_save_live
, NULL
,
5910 if (nb_numa_nodes
> 0) {
5913 if (nb_numa_nodes
> smp_cpus
) {
5914 nb_numa_nodes
= smp_cpus
;
5917 /* If no memory size if given for any node, assume the default case
5918 * and distribute the available memory equally across all nodes
5920 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5921 if (node_mem
[i
] != 0)
5924 if (i
== nb_numa_nodes
) {
5925 uint64_t usedmem
= 0;
5927 /* On Linux, the each node's border has to be 8MB aligned,
5928 * the final node gets the rest.
5930 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5931 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5932 usedmem
+= node_mem
[i
];
5934 node_mem
[i
] = ram_size
- usedmem
;
5937 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5938 if (node_cpumask
[i
] != 0)
5941 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5942 * must cope with this anyway, because there are BIOSes out there in
5943 * real machines which also use this scheme.
5945 if (i
== nb_numa_nodes
) {
5946 for (i
= 0; i
< smp_cpus
; i
++) {
5947 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5952 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
5954 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
5956 if (foreach_device_config(DEV_VIRTCON
, virtcon_parse
) < 0)
5958 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
5961 module_call_init(MODULE_INIT_DEVICE
);
5963 if (qemu_opts_foreach(&qemu_device_opts
, device_help_func
, NULL
, 0) != 0)
5967 i
= select_watchdog(watchdog
);
5969 exit (i
== 1 ? 1 : 0);
5972 if (machine
->compat_props
) {
5973 qdev_prop_register_global_list(machine
->compat_props
);
5977 machine
->init(ram_size
, boot_devices
,
5978 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5980 cpu_synchronize_all_post_init();
5983 /* must be after terminal init, SDL library changes signal handlers */
5987 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5988 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5989 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5995 current_machine
= machine
;
5997 /* init USB devices */
5999 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
6003 /* init generic devices */
6004 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
6007 net_check_clients();
6009 /* just use the first displaystate for the moment */
6010 ds
= get_displaystate();
6012 if (display_type
== DT_DEFAULT
) {
6013 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
6014 display_type
= DT_SDL
;
6016 display_type
= DT_VNC
;
6017 vnc_display
= "localhost:0,to=99";
6023 switch (display_type
) {
6026 #if defined(CONFIG_CURSES)
6028 curses_display_init(ds
, full_screen
);
6031 #if defined(CONFIG_SDL)
6033 sdl_display_init(ds
, full_screen
, no_frame
);
6035 #elif defined(CONFIG_COCOA)
6037 cocoa_display_init(ds
, full_screen
);
6041 vnc_display_init(ds
);
6042 if (vnc_display_open(ds
, vnc_display
) < 0)
6045 if (show_vnc_port
) {
6046 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
6054 dcl
= ds
->listeners
;
6055 while (dcl
!= NULL
) {
6056 if (dcl
->dpy_refresh
!= NULL
) {
6057 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
6058 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
6063 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
6064 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
6065 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
6068 text_consoles_set_display(ds
);
6070 if (qemu_opts_foreach(&qemu_mon_opts
, mon_init_func
, NULL
, 1) != 0)
6073 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
6074 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
6079 qdev_machine_creation_done();
6081 if (rom_load_all() != 0) {
6082 fprintf(stderr
, "rom loading failed\n");
6086 qemu_system_reset();
6088 if (load_vmstate(loadvm
) < 0) {
6094 qemu_start_incoming_migration(incoming
);
6095 } else if (autostart
) {
6105 len
= write(fds
[1], &status
, 1);
6106 if (len
== -1 && (errno
== EINTR
))
6113 perror("not able to chdir to /");
6116 TFR(fd
= qemu_open("/dev/null", O_RDWR
));
6122 pwd
= getpwnam(run_as
);
6124 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
6130 if (chroot(chroot_dir
) < 0) {
6131 fprintf(stderr
, "chroot failed\n");
6135 perror("not able to chdir to /");
6141 if (setgid(pwd
->pw_gid
) < 0) {
6142 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
6145 if (setuid(pwd
->pw_uid
) < 0) {
6146 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
6149 if (setuid(0) != -1) {
6150 fprintf(stderr
, "Dropping privileges failed\n");