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 HOST_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 #if defined(__NetBSD__)
48 #include <net/if_tap.h>
51 #include <linux/if_tun.h>
53 #include <arpa/inet.h>
56 #include <sys/select.h>
59 #if defined(__FreeBSD__) || defined(__DragonFly__)
64 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
65 #include <freebsd/stdlib.h>
70 #include <linux/rtc.h>
71 #include <sys/prctl.h>
73 /* For the benefit of older linux systems which don't supply it,
74 we use a local copy of hpet.h. */
75 /* #include <linux/hpet.h> */
78 #include <linux/ppdev.h>
79 #include <linux/parport.h>
83 #include <sys/ethernet.h>
84 #include <sys/sockio.h>
85 #include <netinet/arp.h>
86 #include <netinet/in.h>
87 #include <netinet/in_systm.h>
88 #include <netinet/ip.h>
89 #include <netinet/ip_icmp.h> // must come after ip.h
90 #include <netinet/udp.h>
91 #include <netinet/tcp.h>
99 #if defined(__OpenBSD__)
103 #if defined(CONFIG_VDE)
104 #include <libvdeplug.h>
110 #include <sys/timeb.h>
111 #include <mmsystem.h>
112 #define getopt_long_only getopt_long
113 #define memalign(align, size) malloc(size)
117 #if defined(__APPLE__) || defined(main)
119 int qemu_main(int argc
, char **argv
, char **envp
);
120 int main(int argc
, char **argv
)
122 return qemu_main(argc
, argv
, NULL
);
125 #define main qemu_main
127 #endif /* CONFIG_SDL */
131 #define main qemu_main
132 #endif /* CONFIG_COCOA */
135 #include "hw/boards.h"
137 #include "hw/pcmcia.h"
139 #include "hw/audiodev.h"
143 #include "hw/watchdog.h"
144 #include "hw/smbios.h"
152 #include "qemu-timer.h"
153 #include "qemu-char.h"
154 #include "cache-utils.h"
157 #include "audio/audio.h"
158 #include "migration.h"
161 #include "qemu-option.h"
165 #include "exec-all.h"
167 #include "qemu_socket.h"
169 #include "slirp/libslirp.h"
172 //#define DEBUG_SLIRP
174 #define DEFAULT_RAM_SIZE 128
176 /* Max number of USB devices that can be specified on the commandline. */
177 #define MAX_USB_CMDLINE 8
179 /* Max number of bluetooth switches on the commandline. */
180 #define MAX_BT_CMDLINE 10
182 static const char *data_dir
;
183 const char *bios_name
= NULL
;
184 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
185 to store the VM snapshots */
186 DriveInfo drives_table
[MAX_DRIVES
+1];
188 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
189 static DisplayState
*display_state
;
190 DisplayType display_type
= DT_DEFAULT
;
191 const char* keyboard_layout
= NULL
;
192 int64_t ticks_per_sec
;
195 NICInfo nd_table
[MAX_NICS
];
197 static int autostart
;
198 static int rtc_utc
= 1;
199 static int rtc_date_offset
= -1; /* -1 means no change */
200 int cirrus_vga_enabled
= 1;
201 int std_vga_enabled
= 0;
202 int vmsvga_enabled
= 0;
203 int xenfb_enabled
= 0;
205 int graphic_width
= 1024;
206 int graphic_height
= 768;
207 int graphic_depth
= 8;
209 int graphic_width
= 800;
210 int graphic_height
= 600;
211 int graphic_depth
= 15;
213 static int full_screen
= 0;
215 static int no_frame
= 0;
218 CharDriverState
*serial_hds
[MAX_SERIAL_PORTS
];
219 CharDriverState
*parallel_hds
[MAX_PARALLEL_PORTS
];
220 CharDriverState
*virtcon_hds
[MAX_VIRTIO_CONSOLES
];
222 int win2k_install_hack
= 0;
228 const char *vnc_display
;
229 int acpi_enabled
= 1;
231 int virtio_balloon
= 1;
232 const char *virtio_balloon_devaddr
;
237 int graphic_rotate
= 0;
241 WatchdogTimerModel
*watchdog
= NULL
;
242 int watchdog_action
= WDT_RESET
;
243 const char *option_rom
[MAX_OPTION_ROMS
];
245 int semihosting_enabled
= 0;
249 const char *qemu_name
;
251 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
252 unsigned int nb_prom_envs
= 0;
253 const char *prom_envs
[MAX_PROM_ENVS
];
256 struct drive_opt drives_opt
[MAX_DRIVES
];
259 uint64_t node_mem
[MAX_NODES
];
260 uint64_t node_cpumask
[MAX_NODES
];
262 static CPUState
*cur_cpu
;
263 static CPUState
*next_cpu
;
264 static int timer_alarm_pending
= 1;
265 /* Conversion factor from emulated instructions to virtual clock ticks. */
266 static int icount_time_shift
;
267 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
268 #define MAX_ICOUNT_SHIFT 10
269 /* Compensate for varying guest execution speed. */
270 static int64_t qemu_icount_bias
;
271 static QEMUTimer
*icount_rt_timer
;
272 static QEMUTimer
*icount_vm_timer
;
273 static QEMUTimer
*nographic_timer
;
275 uint8_t qemu_uuid
[16];
277 /***********************************************************/
278 /* x86 ISA bus support */
280 target_phys_addr_t isa_mem_base
= 0;
283 /***********************************************************/
284 void hw_error(const char *fmt
, ...)
290 fprintf(stderr
, "qemu: hardware error: ");
291 vfprintf(stderr
, fmt
, ap
);
292 fprintf(stderr
, "\n");
293 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
294 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
296 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
298 cpu_dump_state(env
, stderr
, fprintf
, 0);
305 static void set_proc_name(const char *s
)
311 name
[sizeof(name
) - 1] = 0;
312 strncpy(name
, s
, sizeof(name
));
313 /* Could rewrite argv[0] too, but that's a bit more complicated.
314 This simple way is enough for `top'. */
315 prctl(PR_SET_NAME
, name
);
322 static QEMUBalloonEvent
*qemu_balloon_event
;
323 void *qemu_balloon_event_opaque
;
325 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
327 qemu_balloon_event
= func
;
328 qemu_balloon_event_opaque
= opaque
;
331 void qemu_balloon(ram_addr_t target
)
333 if (qemu_balloon_event
)
334 qemu_balloon_event(qemu_balloon_event_opaque
, target
);
337 ram_addr_t
qemu_balloon_status(void)
339 if (qemu_balloon_event
)
340 return qemu_balloon_event(qemu_balloon_event_opaque
, 0);
344 /***********************************************************/
347 static QEMUPutKBDEvent
*qemu_put_kbd_event
;
348 static void *qemu_put_kbd_event_opaque
;
349 static QEMUPutMouseEntry
*qemu_put_mouse_event_head
;
350 static QEMUPutMouseEntry
*qemu_put_mouse_event_current
;
352 void qemu_add_kbd_event_handler(QEMUPutKBDEvent
*func
, void *opaque
)
354 qemu_put_kbd_event_opaque
= opaque
;
355 qemu_put_kbd_event
= func
;
358 QEMUPutMouseEntry
*qemu_add_mouse_event_handler(QEMUPutMouseEvent
*func
,
359 void *opaque
, int absolute
,
362 QEMUPutMouseEntry
*s
, *cursor
;
364 s
= qemu_mallocz(sizeof(QEMUPutMouseEntry
));
366 s
->qemu_put_mouse_event
= func
;
367 s
->qemu_put_mouse_event_opaque
= opaque
;
368 s
->qemu_put_mouse_event_absolute
= absolute
;
369 s
->qemu_put_mouse_event_name
= qemu_strdup(name
);
372 if (!qemu_put_mouse_event_head
) {
373 qemu_put_mouse_event_head
= qemu_put_mouse_event_current
= s
;
377 cursor
= qemu_put_mouse_event_head
;
378 while (cursor
->next
!= NULL
)
379 cursor
= cursor
->next
;
382 qemu_put_mouse_event_current
= s
;
387 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry
*entry
)
389 QEMUPutMouseEntry
*prev
= NULL
, *cursor
;
391 if (!qemu_put_mouse_event_head
|| entry
== NULL
)
394 cursor
= qemu_put_mouse_event_head
;
395 while (cursor
!= NULL
&& cursor
!= entry
) {
397 cursor
= cursor
->next
;
400 if (cursor
== NULL
) // does not exist or list empty
402 else if (prev
== NULL
) { // entry is head
403 qemu_put_mouse_event_head
= cursor
->next
;
404 if (qemu_put_mouse_event_current
== entry
)
405 qemu_put_mouse_event_current
= cursor
->next
;
406 qemu_free(entry
->qemu_put_mouse_event_name
);
411 prev
->next
= entry
->next
;
413 if (qemu_put_mouse_event_current
== entry
)
414 qemu_put_mouse_event_current
= prev
;
416 qemu_free(entry
->qemu_put_mouse_event_name
);
420 void kbd_put_keycode(int keycode
)
422 if (qemu_put_kbd_event
) {
423 qemu_put_kbd_event(qemu_put_kbd_event_opaque
, keycode
);
427 void kbd_mouse_event(int dx
, int dy
, int dz
, int buttons_state
)
429 QEMUPutMouseEvent
*mouse_event
;
430 void *mouse_event_opaque
;
433 if (!qemu_put_mouse_event_current
) {
438 qemu_put_mouse_event_current
->qemu_put_mouse_event
;
440 qemu_put_mouse_event_current
->qemu_put_mouse_event_opaque
;
443 if (graphic_rotate
) {
444 if (qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
)
447 width
= graphic_width
- 1;
448 mouse_event(mouse_event_opaque
,
449 width
- dy
, dx
, dz
, buttons_state
);
451 mouse_event(mouse_event_opaque
,
452 dx
, dy
, dz
, buttons_state
);
456 int kbd_mouse_is_absolute(void)
458 if (!qemu_put_mouse_event_current
)
461 return qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
;
464 void do_info_mice(Monitor
*mon
)
466 QEMUPutMouseEntry
*cursor
;
469 if (!qemu_put_mouse_event_head
) {
470 monitor_printf(mon
, "No mouse devices connected\n");
474 monitor_printf(mon
, "Mouse devices available:\n");
475 cursor
= qemu_put_mouse_event_head
;
476 while (cursor
!= NULL
) {
477 monitor_printf(mon
, "%c Mouse #%d: %s\n",
478 (cursor
== qemu_put_mouse_event_current
? '*' : ' '),
479 index
, cursor
->qemu_put_mouse_event_name
);
481 cursor
= cursor
->next
;
485 void do_mouse_set(Monitor
*mon
, int index
)
487 QEMUPutMouseEntry
*cursor
;
490 if (!qemu_put_mouse_event_head
) {
491 monitor_printf(mon
, "No mouse devices connected\n");
495 cursor
= qemu_put_mouse_event_head
;
496 while (cursor
!= NULL
&& index
!= i
) {
498 cursor
= cursor
->next
;
502 qemu_put_mouse_event_current
= cursor
;
504 monitor_printf(mon
, "Mouse at given index not found\n");
507 /* compute with 96 bit intermediate result: (a*b)/c */
508 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
513 #ifdef WORDS_BIGENDIAN
523 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
524 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
527 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
531 /***********************************************************/
532 /* real time host monotonic timer */
534 #define QEMU_TIMER_BASE 1000000000LL
538 static int64_t clock_freq
;
540 static void init_get_clock(void)
544 ret
= QueryPerformanceFrequency(&freq
);
546 fprintf(stderr
, "Could not calibrate ticks\n");
549 clock_freq
= freq
.QuadPart
;
552 static int64_t get_clock(void)
555 QueryPerformanceCounter(&ti
);
556 return muldiv64(ti
.QuadPart
, QEMU_TIMER_BASE
, clock_freq
);
561 static int use_rt_clock
;
563 static void init_get_clock(void)
566 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
567 || defined(__DragonFly__)
570 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0) {
577 static int64_t get_clock(void)
579 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
580 || defined(__DragonFly__)
583 clock_gettime(CLOCK_MONOTONIC
, &ts
);
584 return ts
.tv_sec
* 1000000000LL + ts
.tv_nsec
;
588 /* XXX: using gettimeofday leads to problems if the date
589 changes, so it should be avoided. */
591 gettimeofday(&tv
, NULL
);
592 return tv
.tv_sec
* 1000000000LL + (tv
.tv_usec
* 1000);
597 /* Return the virtual CPU time, based on the instruction counter. */
598 static int64_t cpu_get_icount(void)
601 CPUState
*env
= cpu_single_env
;;
602 icount
= qemu_icount
;
605 fprintf(stderr
, "Bad clock read\n");
606 icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
608 return qemu_icount_bias
+ (icount
<< icount_time_shift
);
611 /***********************************************************/
612 /* guest cycle counter */
614 static int64_t cpu_ticks_prev
;
615 static int64_t cpu_ticks_offset
;
616 static int64_t cpu_clock_offset
;
617 static int cpu_ticks_enabled
;
619 /* return the host CPU cycle counter and handle stop/restart */
620 int64_t cpu_get_ticks(void)
623 return cpu_get_icount();
625 if (!cpu_ticks_enabled
) {
626 return cpu_ticks_offset
;
629 ticks
= cpu_get_real_ticks();
630 if (cpu_ticks_prev
> ticks
) {
631 /* Note: non increasing ticks may happen if the host uses
633 cpu_ticks_offset
+= cpu_ticks_prev
- ticks
;
635 cpu_ticks_prev
= ticks
;
636 return ticks
+ cpu_ticks_offset
;
640 /* return the host CPU monotonic timer and handle stop/restart */
641 static int64_t cpu_get_clock(void)
644 if (!cpu_ticks_enabled
) {
645 return cpu_clock_offset
;
648 return ti
+ cpu_clock_offset
;
652 /* enable cpu_get_ticks() */
653 void cpu_enable_ticks(void)
655 if (!cpu_ticks_enabled
) {
656 cpu_ticks_offset
-= cpu_get_real_ticks();
657 cpu_clock_offset
-= get_clock();
658 cpu_ticks_enabled
= 1;
662 /* disable cpu_get_ticks() : the clock is stopped. You must not call
663 cpu_get_ticks() after that. */
664 void cpu_disable_ticks(void)
666 if (cpu_ticks_enabled
) {
667 cpu_ticks_offset
= cpu_get_ticks();
668 cpu_clock_offset
= cpu_get_clock();
669 cpu_ticks_enabled
= 0;
673 /***********************************************************/
676 #define QEMU_TIMER_REALTIME 0
677 #define QEMU_TIMER_VIRTUAL 1
681 /* XXX: add frequency */
689 struct QEMUTimer
*next
;
692 struct qemu_alarm_timer
{
696 int (*start
)(struct qemu_alarm_timer
*t
);
697 void (*stop
)(struct qemu_alarm_timer
*t
);
698 void (*rearm
)(struct qemu_alarm_timer
*t
);
702 #define ALARM_FLAG_DYNTICKS 0x1
703 #define ALARM_FLAG_EXPIRED 0x2
705 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
707 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
710 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
712 if (!alarm_has_dynticks(t
))
718 /* TODO: MIN_TIMER_REARM_US should be optimized */
719 #define MIN_TIMER_REARM_US 250
721 static struct qemu_alarm_timer
*alarm_timer
;
725 struct qemu_alarm_win32
{
728 } alarm_win32_data
= {0, -1};
730 static int win32_start_timer(struct qemu_alarm_timer
*t
);
731 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
732 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
736 static int unix_start_timer(struct qemu_alarm_timer
*t
);
737 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
741 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
742 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
743 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
745 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
746 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
748 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
749 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
751 #endif /* __linux__ */
755 /* Correlation between real and virtual time is always going to be
756 fairly approximate, so ignore small variation.
757 When the guest is idle real and virtual time will be aligned in
759 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
761 static void icount_adjust(void)
766 static int64_t last_delta
;
767 /* If the VM is not running, then do nothing. */
771 cur_time
= cpu_get_clock();
772 cur_icount
= qemu_get_clock(vm_clock
);
773 delta
= cur_icount
- cur_time
;
774 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
776 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
777 && icount_time_shift
> 0) {
778 /* The guest is getting too far ahead. Slow time down. */
782 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
783 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
784 /* The guest is getting too far behind. Speed time up. */
788 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
791 static void icount_adjust_rt(void * opaque
)
793 qemu_mod_timer(icount_rt_timer
,
794 qemu_get_clock(rt_clock
) + 1000);
798 static void icount_adjust_vm(void * opaque
)
800 qemu_mod_timer(icount_vm_timer
,
801 qemu_get_clock(vm_clock
) + QEMU_TIMER_BASE
/ 10);
805 static void init_icount_adjust(void)
807 /* Have both realtime and virtual time triggers for speed adjustment.
808 The realtime trigger catches emulated time passing too slowly,
809 the virtual time trigger catches emulated time passing too fast.
810 Realtime triggers occur even when idle, so use them less frequently
812 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
813 qemu_mod_timer(icount_rt_timer
,
814 qemu_get_clock(rt_clock
) + 1000);
815 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
816 qemu_mod_timer(icount_vm_timer
,
817 qemu_get_clock(vm_clock
) + QEMU_TIMER_BASE
/ 10);
820 static struct qemu_alarm_timer alarm_timers
[] = {
823 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
824 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
825 /* HPET - if available - is preferred */
826 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
827 /* ...otherwise try RTC */
828 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
830 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
832 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
833 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
834 {"win32", 0, win32_start_timer
,
835 win32_stop_timer
, NULL
, &alarm_win32_data
},
840 static void show_available_alarms(void)
844 printf("Available alarm timers, in order of precedence:\n");
845 for (i
= 0; alarm_timers
[i
].name
; i
++)
846 printf("%s\n", alarm_timers
[i
].name
);
849 static void configure_alarms(char const *opt
)
853 int count
= ARRAY_SIZE(alarm_timers
) - 1;
856 struct qemu_alarm_timer tmp
;
858 if (!strcmp(opt
, "?")) {
859 show_available_alarms();
865 /* Reorder the array */
866 name
= strtok(arg
, ",");
868 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
869 if (!strcmp(alarm_timers
[i
].name
, name
))
874 fprintf(stderr
, "Unknown clock %s\n", name
);
883 tmp
= alarm_timers
[i
];
884 alarm_timers
[i
] = alarm_timers
[cur
];
885 alarm_timers
[cur
] = tmp
;
889 name
= strtok(NULL
, ",");
895 /* Disable remaining timers */
896 for (i
= cur
; i
< count
; i
++)
897 alarm_timers
[i
].name
= NULL
;
899 show_available_alarms();
907 static QEMUTimer
*active_timers
[2];
909 static QEMUClock
*qemu_new_clock(int type
)
912 clock
= qemu_mallocz(sizeof(QEMUClock
));
917 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
921 ts
= qemu_mallocz(sizeof(QEMUTimer
));
928 void qemu_free_timer(QEMUTimer
*ts
)
933 /* stop a timer, but do not dealloc it */
934 void qemu_del_timer(QEMUTimer
*ts
)
938 /* NOTE: this code must be signal safe because
939 qemu_timer_expired() can be called from a signal. */
940 pt
= &active_timers
[ts
->clock
->type
];
953 /* modify the current timer so that it will be fired when current_time
954 >= expire_time. The corresponding callback will be called. */
955 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
961 /* add the timer in the sorted list */
962 /* NOTE: this code must be signal safe because
963 qemu_timer_expired() can be called from a signal. */
964 pt
= &active_timers
[ts
->clock
->type
];
969 if (t
->expire_time
> expire_time
)
973 ts
->expire_time
= expire_time
;
977 /* Rearm if necessary */
978 if (pt
== &active_timers
[ts
->clock
->type
]) {
979 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
980 qemu_rearm_alarm_timer(alarm_timer
);
982 /* Interrupt execution to force deadline recalculation. */
988 int qemu_timer_pending(QEMUTimer
*ts
)
991 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
998 static inline int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
1002 return (timer_head
->expire_time
<= current_time
);
1005 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
1011 if (!ts
|| ts
->expire_time
> current_time
)
1013 /* remove timer from the list before calling the callback */
1014 *ptimer_head
= ts
->next
;
1017 /* run the callback (the timer list can be modified) */
1022 int64_t qemu_get_clock(QEMUClock
*clock
)
1024 switch(clock
->type
) {
1025 case QEMU_TIMER_REALTIME
:
1026 return get_clock() / 1000000;
1028 case QEMU_TIMER_VIRTUAL
:
1030 return cpu_get_icount();
1032 return cpu_get_clock();
1037 static void init_timers(void)
1040 ticks_per_sec
= QEMU_TIMER_BASE
;
1041 rt_clock
= qemu_new_clock(QEMU_TIMER_REALTIME
);
1042 vm_clock
= qemu_new_clock(QEMU_TIMER_VIRTUAL
);
1046 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1048 uint64_t expire_time
;
1050 if (qemu_timer_pending(ts
)) {
1051 expire_time
= ts
->expire_time
;
1055 qemu_put_be64(f
, expire_time
);
1058 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1060 uint64_t expire_time
;
1062 expire_time
= qemu_get_be64(f
);
1063 if (expire_time
!= -1) {
1064 qemu_mod_timer(ts
, expire_time
);
1070 static void timer_save(QEMUFile
*f
, void *opaque
)
1072 if (cpu_ticks_enabled
) {
1073 hw_error("cannot save state if virtual timers are running");
1075 qemu_put_be64(f
, cpu_ticks_offset
);
1076 qemu_put_be64(f
, ticks_per_sec
);
1077 qemu_put_be64(f
, cpu_clock_offset
);
1080 static int timer_load(QEMUFile
*f
, void *opaque
, int version_id
)
1082 if (version_id
!= 1 && version_id
!= 2)
1084 if (cpu_ticks_enabled
) {
1087 cpu_ticks_offset
=qemu_get_be64(f
);
1088 ticks_per_sec
=qemu_get_be64(f
);
1089 if (version_id
== 2) {
1090 cpu_clock_offset
=qemu_get_be64(f
);
1095 static void qemu_event_increment(void);
1098 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
1099 DWORD_PTR dwUser
, DWORD_PTR dw1
,
1102 static void host_alarm_handler(int host_signum
)
1106 #define DISP_FREQ 1000
1108 static int64_t delta_min
= INT64_MAX
;
1109 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
1111 ti
= qemu_get_clock(vm_clock
);
1112 if (last_clock
!= 0) {
1113 delta
= ti
- last_clock
;
1114 if (delta
< delta_min
)
1116 if (delta
> delta_max
)
1119 if (++count
== DISP_FREQ
) {
1120 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1121 muldiv64(delta_min
, 1000000, ticks_per_sec
),
1122 muldiv64(delta_max
, 1000000, ticks_per_sec
),
1123 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, ticks_per_sec
),
1124 (double)ticks_per_sec
/ ((double)delta_cum
/ DISP_FREQ
));
1126 delta_min
= INT64_MAX
;
1134 if (alarm_has_dynticks(alarm_timer
) ||
1136 qemu_timer_expired(active_timers
[QEMU_TIMER_VIRTUAL
],
1137 qemu_get_clock(vm_clock
))) ||
1138 qemu_timer_expired(active_timers
[QEMU_TIMER_REALTIME
],
1139 qemu_get_clock(rt_clock
))) {
1140 qemu_event_increment();
1141 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1143 #ifndef CONFIG_IOTHREAD
1145 /* stop the currently executing cpu because a timer occured */
1148 if (next_cpu
->kqemu_enabled
) {
1149 kqemu_cpu_interrupt(next_cpu
);
1154 timer_alarm_pending
= 1;
1155 qemu_notify_event();
1159 static int64_t qemu_next_deadline(void)
1163 if (active_timers
[QEMU_TIMER_VIRTUAL
]) {
1164 delta
= active_timers
[QEMU_TIMER_VIRTUAL
]->expire_time
-
1165 qemu_get_clock(vm_clock
);
1167 /* To avoid problems with overflow limit this to 2^32. */
1177 #if defined(__linux__) || defined(_WIN32)
1178 static uint64_t qemu_next_deadline_dyntick(void)
1186 delta
= (qemu_next_deadline() + 999) / 1000;
1188 if (active_timers
[QEMU_TIMER_REALTIME
]) {
1189 rtdelta
= (active_timers
[QEMU_TIMER_REALTIME
]->expire_time
-
1190 qemu_get_clock(rt_clock
))*1000;
1191 if (rtdelta
< delta
)
1195 if (delta
< MIN_TIMER_REARM_US
)
1196 delta
= MIN_TIMER_REARM_US
;
1204 /* Sets a specific flag */
1205 static int fcntl_setfl(int fd
, int flag
)
1209 flags
= fcntl(fd
, F_GETFL
);
1213 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1219 #if defined(__linux__)
1221 #define RTC_FREQ 1024
1223 static void enable_sigio_timer(int fd
)
1225 struct sigaction act
;
1228 sigfillset(&act
.sa_mask
);
1230 act
.sa_handler
= host_alarm_handler
;
1232 sigaction(SIGIO
, &act
, NULL
);
1233 fcntl_setfl(fd
, O_ASYNC
);
1234 fcntl(fd
, F_SETOWN
, getpid());
1237 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1239 struct hpet_info info
;
1242 fd
= open("/dev/hpet", O_RDONLY
);
1247 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1249 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1250 "error, but for better emulation accuracy type:\n"
1251 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1255 /* Check capabilities */
1256 r
= ioctl(fd
, HPET_INFO
, &info
);
1260 /* Enable periodic mode */
1261 r
= ioctl(fd
, HPET_EPI
, 0);
1262 if (info
.hi_flags
&& (r
< 0))
1265 /* Enable interrupt */
1266 r
= ioctl(fd
, HPET_IE_ON
, 0);
1270 enable_sigio_timer(fd
);
1271 t
->priv
= (void *)(long)fd
;
1279 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1281 int fd
= (long)t
->priv
;
1286 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1289 unsigned long current_rtc_freq
= 0;
1291 TFR(rtc_fd
= open("/dev/rtc", O_RDONLY
));
1294 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1295 if (current_rtc_freq
!= RTC_FREQ
&&
1296 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1297 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1298 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1299 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1302 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1308 enable_sigio_timer(rtc_fd
);
1310 t
->priv
= (void *)(long)rtc_fd
;
1315 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1317 int rtc_fd
= (long)t
->priv
;
1322 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1326 struct sigaction act
;
1328 sigfillset(&act
.sa_mask
);
1330 act
.sa_handler
= host_alarm_handler
;
1332 sigaction(SIGALRM
, &act
, NULL
);
1335 * Initialize ev struct to 0 to avoid valgrind complaining
1336 * about uninitialized data in timer_create call
1338 memset(&ev
, 0, sizeof(ev
));
1339 ev
.sigev_value
.sival_int
= 0;
1340 ev
.sigev_notify
= SIGEV_SIGNAL
;
1341 ev
.sigev_signo
= SIGALRM
;
1343 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1344 perror("timer_create");
1346 /* disable dynticks */
1347 fprintf(stderr
, "Dynamic Ticks disabled\n");
1352 t
->priv
= (void *)(long)host_timer
;
1357 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1359 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1361 timer_delete(host_timer
);
1364 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1366 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1367 struct itimerspec timeout
;
1368 int64_t nearest_delta_us
= INT64_MAX
;
1371 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1372 !active_timers
[QEMU_TIMER_VIRTUAL
])
1375 nearest_delta_us
= qemu_next_deadline_dyntick();
1377 /* check whether a timer is already running */
1378 if (timer_gettime(host_timer
, &timeout
)) {
1380 fprintf(stderr
, "Internal timer error: aborting\n");
1383 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1384 if (current_us
&& current_us
<= nearest_delta_us
)
1387 timeout
.it_interval
.tv_sec
= 0;
1388 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1389 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1390 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1391 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1393 fprintf(stderr
, "Internal timer error: aborting\n");
1398 #endif /* defined(__linux__) */
1400 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1402 struct sigaction act
;
1403 struct itimerval itv
;
1407 sigfillset(&act
.sa_mask
);
1409 act
.sa_handler
= host_alarm_handler
;
1411 sigaction(SIGALRM
, &act
, NULL
);
1413 itv
.it_interval
.tv_sec
= 0;
1414 /* for i386 kernel 2.6 to get 1 ms */
1415 itv
.it_interval
.tv_usec
= 999;
1416 itv
.it_value
.tv_sec
= 0;
1417 itv
.it_value
.tv_usec
= 10 * 1000;
1419 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1426 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1428 struct itimerval itv
;
1430 memset(&itv
, 0, sizeof(itv
));
1431 setitimer(ITIMER_REAL
, &itv
, NULL
);
1434 #endif /* !defined(_WIN32) */
1439 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1442 struct qemu_alarm_win32
*data
= t
->priv
;
1445 memset(&tc
, 0, sizeof(tc
));
1446 timeGetDevCaps(&tc
, sizeof(tc
));
1448 if (data
->period
< tc
.wPeriodMin
)
1449 data
->period
= tc
.wPeriodMin
;
1451 timeBeginPeriod(data
->period
);
1453 flags
= TIME_CALLBACK_FUNCTION
;
1454 if (alarm_has_dynticks(t
))
1455 flags
|= TIME_ONESHOT
;
1457 flags
|= TIME_PERIODIC
;
1459 data
->timerId
= timeSetEvent(1, // interval (ms)
1460 data
->period
, // resolution
1461 host_alarm_handler
, // function
1462 (DWORD
)t
, // parameter
1465 if (!data
->timerId
) {
1466 perror("Failed to initialize win32 alarm timer");
1467 timeEndPeriod(data
->period
);
1474 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1476 struct qemu_alarm_win32
*data
= t
->priv
;
1478 timeKillEvent(data
->timerId
);
1479 timeEndPeriod(data
->period
);
1482 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1484 struct qemu_alarm_win32
*data
= t
->priv
;
1485 uint64_t nearest_delta_us
;
1487 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1488 !active_timers
[QEMU_TIMER_VIRTUAL
])
1491 nearest_delta_us
= qemu_next_deadline_dyntick();
1492 nearest_delta_us
/= 1000;
1494 timeKillEvent(data
->timerId
);
1496 data
->timerId
= timeSetEvent(1,
1500 TIME_ONESHOT
| TIME_PERIODIC
);
1502 if (!data
->timerId
) {
1503 perror("Failed to re-arm win32 alarm timer");
1505 timeEndPeriod(data
->period
);
1512 static int init_timer_alarm(void)
1514 struct qemu_alarm_timer
*t
= NULL
;
1517 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1518 t
= &alarm_timers
[i
];
1538 static void quit_timers(void)
1540 alarm_timer
->stop(alarm_timer
);
1544 /***********************************************************/
1545 /* host time/date access */
1546 void qemu_get_timedate(struct tm
*tm
, int offset
)
1553 if (rtc_date_offset
== -1) {
1557 ret
= localtime(&ti
);
1559 ti
-= rtc_date_offset
;
1563 memcpy(tm
, ret
, sizeof(struct tm
));
1566 int qemu_timedate_diff(struct tm
*tm
)
1570 if (rtc_date_offset
== -1)
1572 seconds
= mktimegm(tm
);
1574 seconds
= mktime(tm
);
1576 seconds
= mktimegm(tm
) + rtc_date_offset
;
1578 return seconds
- time(NULL
);
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 int get_next_param_value(char *buf
, int buf_size
,
1604 const char *tag
, const char **pstr
)
1611 p
= get_opt_name(option
, sizeof(option
), p
, '=');
1615 if (!strcmp(tag
, option
)) {
1616 *pstr
= get_opt_value(buf
, buf_size
, p
);
1617 if (**pstr
== ',') {
1622 p
= get_opt_value(NULL
, 0, p
);
1631 int get_param_value(char *buf
, int buf_size
,
1632 const char *tag
, const char *str
)
1634 return get_next_param_value(buf
, buf_size
, tag
, &str
);
1637 int check_params(char *buf
, int buf_size
,
1638 const char * const *params
, const char *str
)
1644 while (*p
!= '\0') {
1645 p
= get_opt_name(buf
, buf_size
, p
, '=');
1650 for (i
= 0; params
[i
] != NULL
; i
++) {
1651 if (!strcmp(params
[i
], buf
)) {
1655 if (params
[i
] == NULL
) {
1658 p
= get_opt_value(NULL
, 0, p
);
1667 /***********************************************************/
1668 /* Bluetooth support */
1671 static struct HCIInfo
*hci_table
[MAX_NICS
];
1673 static struct bt_vlan_s
{
1674 struct bt_scatternet_s net
;
1676 struct bt_vlan_s
*next
;
1679 /* find or alloc a new bluetooth "VLAN" */
1680 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1682 struct bt_vlan_s
**pvlan
, *vlan
;
1683 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1687 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1689 pvlan
= &first_bt_vlan
;
1690 while (*pvlan
!= NULL
)
1691 pvlan
= &(*pvlan
)->next
;
1696 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1700 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1705 static struct HCIInfo null_hci
= {
1706 .cmd_send
= null_hci_send
,
1707 .sco_send
= null_hci_send
,
1708 .acl_send
= null_hci_send
,
1709 .bdaddr_set
= null_hci_addr_set
,
1712 struct HCIInfo
*qemu_next_hci(void)
1714 if (cur_hci
== nb_hcis
)
1717 return hci_table
[cur_hci
++];
1720 static struct HCIInfo
*hci_init(const char *str
)
1723 struct bt_scatternet_s
*vlan
= 0;
1725 if (!strcmp(str
, "null"))
1728 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1730 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1731 else if (!strncmp(str
, "hci", 3)) {
1734 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1735 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1740 vlan
= qemu_find_bt_vlan(0);
1742 return bt_new_hci(vlan
);
1745 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1750 static int bt_hci_parse(const char *str
)
1752 struct HCIInfo
*hci
;
1755 if (nb_hcis
>= MAX_NICS
) {
1756 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1760 hci
= hci_init(str
);
1769 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1770 hci
->bdaddr_set(hci
, bdaddr
.b
);
1772 hci_table
[nb_hcis
++] = hci
;
1777 static void bt_vhci_add(int vlan_id
)
1779 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1782 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1783 "an empty scatternet %i\n", vlan_id
);
1785 bt_vhci_init(bt_new_hci(vlan
));
1788 static struct bt_device_s
*bt_device_add(const char *opt
)
1790 struct bt_scatternet_s
*vlan
;
1792 char *endp
= strstr(opt
, ",vlan=");
1793 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1796 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1799 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1801 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1806 vlan
= qemu_find_bt_vlan(vlan_id
);
1809 fprintf(stderr
, "qemu: warning: adding a slave device to "
1810 "an empty scatternet %i\n", vlan_id
);
1812 if (!strcmp(devname
, "keyboard"))
1813 return bt_keyboard_init(vlan
);
1815 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1819 static int bt_parse(const char *opt
)
1821 const char *endp
, *p
;
1824 if (strstart(opt
, "hci", &endp
)) {
1825 if (!*endp
|| *endp
== ',') {
1827 if (!strstart(endp
, ",vlan=", 0))
1830 return bt_hci_parse(opt
);
1832 } else if (strstart(opt
, "vhci", &endp
)) {
1833 if (!*endp
|| *endp
== ',') {
1835 if (strstart(endp
, ",vlan=", &p
)) {
1836 vlan
= strtol(p
, (char **) &endp
, 0);
1838 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1842 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1851 } else if (strstart(opt
, "device:", &endp
))
1852 return !bt_device_add(endp
);
1854 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1858 /***********************************************************/
1859 /* QEMU Block devices */
1861 #define HD_ALIAS "index=%d,media=disk"
1862 #define CDROM_ALIAS "index=2,media=cdrom"
1863 #define FD_ALIAS "index=%d,if=floppy"
1864 #define PFLASH_ALIAS "if=pflash"
1865 #define MTD_ALIAS "if=mtd"
1866 #define SD_ALIAS "index=0,if=sd"
1868 static int drive_opt_get_free_idx(void)
1872 for (index
= 0; index
< MAX_DRIVES
; index
++)
1873 if (!drives_opt
[index
].used
) {
1874 drives_opt
[index
].used
= 1;
1881 static int drive_get_free_idx(void)
1885 for (index
= 0; index
< MAX_DRIVES
; index
++)
1886 if (!drives_table
[index
].used
) {
1887 drives_table
[index
].used
= 1;
1894 int drive_add(const char *file
, const char *fmt
, ...)
1897 int index
= drive_opt_get_free_idx();
1899 if (nb_drives_opt
>= MAX_DRIVES
|| index
== -1) {
1900 fprintf(stderr
, "qemu: too many drives\n");
1904 drives_opt
[index
].file
= file
;
1906 vsnprintf(drives_opt
[index
].opt
,
1907 sizeof(drives_opt
[0].opt
), fmt
, ap
);
1914 void drive_remove(int index
)
1916 drives_opt
[index
].used
= 0;
1920 int drive_get_index(BlockInterfaceType type
, int bus
, int unit
)
1924 /* seek interface, bus and unit */
1926 for (index
= 0; index
< MAX_DRIVES
; index
++)
1927 if (drives_table
[index
].type
== type
&&
1928 drives_table
[index
].bus
== bus
&&
1929 drives_table
[index
].unit
== unit
&&
1930 drives_table
[index
].used
)
1936 int drive_get_max_bus(BlockInterfaceType type
)
1942 for (index
= 0; index
< nb_drives
; index
++) {
1943 if(drives_table
[index
].type
== type
&&
1944 drives_table
[index
].bus
> max_bus
)
1945 max_bus
= drives_table
[index
].bus
;
1950 const char *drive_get_serial(BlockDriverState
*bdrv
)
1954 for (index
= 0; index
< nb_drives
; index
++)
1955 if (drives_table
[index
].bdrv
== bdrv
)
1956 return drives_table
[index
].serial
;
1961 BlockInterfaceErrorAction
drive_get_onerror(BlockDriverState
*bdrv
)
1965 for (index
= 0; index
< nb_drives
; index
++)
1966 if (drives_table
[index
].bdrv
== bdrv
)
1967 return drives_table
[index
].onerror
;
1969 return BLOCK_ERR_STOP_ENOSPC
;
1972 static void bdrv_format_print(void *opaque
, const char *name
)
1974 fprintf(stderr
, " %s", name
);
1977 void drive_uninit(BlockDriverState
*bdrv
)
1981 for (i
= 0; i
< MAX_DRIVES
; i
++)
1982 if (drives_table
[i
].bdrv
== bdrv
) {
1983 drives_table
[i
].bdrv
= NULL
;
1984 drives_table
[i
].used
= 0;
1985 drive_remove(drives_table
[i
].drive_opt_idx
);
1991 int drive_init(struct drive_opt
*arg
, int snapshot
, void *opaque
)
1997 const char *mediastr
= "";
1998 BlockInterfaceType type
;
1999 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
2000 int bus_id
, unit_id
;
2001 int cyls
, heads
, secs
, translation
;
2002 BlockDriverState
*bdrv
;
2003 BlockDriver
*drv
= NULL
;
2004 QEMUMachine
*machine
= opaque
;
2008 int bdrv_flags
, onerror
;
2009 const char *devaddr
;
2010 int drives_table_idx
;
2011 char *str
= arg
->opt
;
2012 static const char * const params
[] = { "bus", "unit", "if", "index",
2013 "cyls", "heads", "secs", "trans",
2014 "media", "snapshot", "file",
2015 "cache", "format", "serial",
2019 if (check_params(buf
, sizeof(buf
), params
, str
) < 0) {
2020 fprintf(stderr
, "qemu: unknown parameter '%s' in '%s'\n",
2026 cyls
= heads
= secs
= 0;
2029 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2033 if (machine
->use_scsi
) {
2035 max_devs
= MAX_SCSI_DEVS
;
2036 pstrcpy(devname
, sizeof(devname
), "scsi");
2039 max_devs
= MAX_IDE_DEVS
;
2040 pstrcpy(devname
, sizeof(devname
), "ide");
2044 /* extract parameters */
2046 if (get_param_value(buf
, sizeof(buf
), "bus", str
)) {
2047 bus_id
= strtol(buf
, NULL
, 0);
2049 fprintf(stderr
, "qemu: '%s' invalid bus id\n", str
);
2054 if (get_param_value(buf
, sizeof(buf
), "unit", str
)) {
2055 unit_id
= strtol(buf
, NULL
, 0);
2057 fprintf(stderr
, "qemu: '%s' invalid unit id\n", str
);
2062 if (get_param_value(buf
, sizeof(buf
), "if", str
)) {
2063 pstrcpy(devname
, sizeof(devname
), buf
);
2064 if (!strcmp(buf
, "ide")) {
2066 max_devs
= MAX_IDE_DEVS
;
2067 } else if (!strcmp(buf
, "scsi")) {
2069 max_devs
= MAX_SCSI_DEVS
;
2070 } else if (!strcmp(buf
, "floppy")) {
2073 } else if (!strcmp(buf
, "pflash")) {
2076 } else if (!strcmp(buf
, "mtd")) {
2079 } else if (!strcmp(buf
, "sd")) {
2082 } else if (!strcmp(buf
, "virtio")) {
2085 } else if (!strcmp(buf
, "xen")) {
2089 fprintf(stderr
, "qemu: '%s' unsupported bus type '%s'\n", str
, buf
);
2094 if (get_param_value(buf
, sizeof(buf
), "index", str
)) {
2095 index
= strtol(buf
, NULL
, 0);
2097 fprintf(stderr
, "qemu: '%s' invalid index\n", str
);
2102 if (get_param_value(buf
, sizeof(buf
), "cyls", str
)) {
2103 cyls
= strtol(buf
, NULL
, 0);
2106 if (get_param_value(buf
, sizeof(buf
), "heads", str
)) {
2107 heads
= strtol(buf
, NULL
, 0);
2110 if (get_param_value(buf
, sizeof(buf
), "secs", str
)) {
2111 secs
= strtol(buf
, NULL
, 0);
2114 if (cyls
|| heads
|| secs
) {
2115 if (cyls
< 1 || cyls
> 16383) {
2116 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", str
);
2119 if (heads
< 1 || heads
> 16) {
2120 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", str
);
2123 if (secs
< 1 || secs
> 63) {
2124 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", str
);
2129 if (get_param_value(buf
, sizeof(buf
), "trans", str
)) {
2132 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2136 if (!strcmp(buf
, "none"))
2137 translation
= BIOS_ATA_TRANSLATION_NONE
;
2138 else if (!strcmp(buf
, "lba"))
2139 translation
= BIOS_ATA_TRANSLATION_LBA
;
2140 else if (!strcmp(buf
, "auto"))
2141 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2143 fprintf(stderr
, "qemu: '%s' invalid translation type\n", str
);
2148 if (get_param_value(buf
, sizeof(buf
), "media", str
)) {
2149 if (!strcmp(buf
, "disk")) {
2151 } else if (!strcmp(buf
, "cdrom")) {
2152 if (cyls
|| secs
|| heads
) {
2154 "qemu: '%s' invalid physical CHS format\n", str
);
2157 media
= MEDIA_CDROM
;
2159 fprintf(stderr
, "qemu: '%s' invalid media\n", str
);
2164 if (get_param_value(buf
, sizeof(buf
), "snapshot", str
)) {
2165 if (!strcmp(buf
, "on"))
2167 else if (!strcmp(buf
, "off"))
2170 fprintf(stderr
, "qemu: '%s' invalid snapshot option\n", str
);
2175 if (get_param_value(buf
, sizeof(buf
), "cache", str
)) {
2176 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2178 else if (!strcmp(buf
, "writethrough"))
2180 else if (!strcmp(buf
, "writeback"))
2183 fprintf(stderr
, "qemu: invalid cache option\n");
2188 if (get_param_value(buf
, sizeof(buf
), "format", str
)) {
2189 if (strcmp(buf
, "?") == 0) {
2190 fprintf(stderr
, "qemu: Supported formats:");
2191 bdrv_iterate_format(bdrv_format_print
, NULL
);
2192 fprintf(stderr
, "\n");
2195 drv
= bdrv_find_format(buf
);
2197 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2202 if (arg
->file
== NULL
)
2203 get_param_value(file
, sizeof(file
), "file", str
);
2205 pstrcpy(file
, sizeof(file
), arg
->file
);
2207 if (!get_param_value(serial
, sizeof(serial
), "serial", str
))
2208 memset(serial
, 0, sizeof(serial
));
2210 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2211 if (get_param_value(buf
, sizeof(serial
), "werror", str
)) {
2212 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2213 fprintf(stderr
, "werror is no supported by this format\n");
2216 if (!strcmp(buf
, "ignore"))
2217 onerror
= BLOCK_ERR_IGNORE
;
2218 else if (!strcmp(buf
, "enospc"))
2219 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2220 else if (!strcmp(buf
, "stop"))
2221 onerror
= BLOCK_ERR_STOP_ANY
;
2222 else if (!strcmp(buf
, "report"))
2223 onerror
= BLOCK_ERR_REPORT
;
2225 fprintf(stderr
, "qemu: '%s' invalid write error action\n", buf
);
2231 if (get_param_value(buf
, sizeof(buf
), "addr", str
)) {
2232 if (type
!= IF_VIRTIO
) {
2233 fprintf(stderr
, "addr is not supported by in '%s'\n", str
);
2236 devaddr
= strdup(buf
);
2239 /* compute bus and unit according index */
2242 if (bus_id
!= 0 || unit_id
!= -1) {
2244 "qemu: '%s' index cannot be used with bus and unit\n", str
);
2252 unit_id
= index
% max_devs
;
2253 bus_id
= index
/ max_devs
;
2257 /* if user doesn't specify a unit_id,
2258 * try to find the first free
2261 if (unit_id
== -1) {
2263 while (drive_get_index(type
, bus_id
, unit_id
) != -1) {
2265 if (max_devs
&& unit_id
>= max_devs
) {
2266 unit_id
-= max_devs
;
2274 if (max_devs
&& unit_id
>= max_devs
) {
2275 fprintf(stderr
, "qemu: '%s' unit %d too big (max is %d)\n",
2276 str
, unit_id
, max_devs
- 1);
2281 * ignore multiple definitions
2284 if (drive_get_index(type
, bus_id
, unit_id
) != -1)
2289 if (type
== IF_IDE
|| type
== IF_SCSI
)
2290 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2292 snprintf(buf
, sizeof(buf
), "%s%i%s%i",
2293 devname
, bus_id
, mediastr
, unit_id
);
2295 snprintf(buf
, sizeof(buf
), "%s%s%i",
2296 devname
, mediastr
, unit_id
);
2297 bdrv
= bdrv_new(buf
);
2298 drives_table_idx
= drive_get_free_idx();
2299 drives_table
[drives_table_idx
].bdrv
= bdrv
;
2300 drives_table
[drives_table_idx
].devaddr
= devaddr
;
2301 drives_table
[drives_table_idx
].type
= type
;
2302 drives_table
[drives_table_idx
].bus
= bus_id
;
2303 drives_table
[drives_table_idx
].unit
= unit_id
;
2304 drives_table
[drives_table_idx
].onerror
= onerror
;
2305 drives_table
[drives_table_idx
].drive_opt_idx
= arg
- drives_opt
;
2306 strncpy(drives_table
[drives_table_idx
].serial
, serial
, sizeof(serial
));
2316 bdrv_set_geometry_hint(bdrv
, cyls
, heads
, secs
);
2317 bdrv_set_translation_hint(bdrv
, translation
);
2321 bdrv_set_type_hint(bdrv
, BDRV_TYPE_CDROM
);
2326 /* FIXME: This isn't really a floppy, but it's a reasonable
2329 bdrv_set_type_hint(bdrv
, BDRV_TYPE_FLOPPY
);
2342 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2343 cache
= 2; /* always use write-back with snapshot */
2345 if (cache
== 0) /* no caching */
2346 bdrv_flags
|= BDRV_O_NOCACHE
;
2347 else if (cache
== 2) /* write-back */
2348 bdrv_flags
|= BDRV_O_CACHE_WB
;
2349 if (bdrv_open2(bdrv
, file
, bdrv_flags
, drv
) < 0) {
2350 fprintf(stderr
, "qemu: could not open disk image %s\n",
2354 if (bdrv_key_required(bdrv
))
2356 return drives_table_idx
;
2359 static int parse_bootdevices(char *devices
)
2361 /* We just do some generic consistency checks */
2365 for (p
= devices
; *p
!= '\0'; p
++) {
2366 /* Allowed boot devices are:
2367 * a-b: floppy disk drives
2368 * c-f: IDE disk drives
2369 * g-m: machine implementation dependant drives
2370 * n-p: network devices
2371 * It's up to each machine implementation to check if the given boot
2372 * devices match the actual hardware implementation and firmware
2375 if (*p
< 'a' || *p
> 'p') {
2376 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2379 if (bitmap
& (1 << (*p
- 'a'))) {
2380 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2383 bitmap
|= 1 << (*p
- 'a');
2388 static void numa_add(const char *optarg
)
2392 unsigned long long value
, endvalue
;
2395 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2396 if (!strcmp(option
, "node")) {
2397 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2398 nodenr
= nb_numa_nodes
;
2400 nodenr
= strtoull(option
, NULL
, 10);
2403 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2404 node_mem
[nodenr
] = 0;
2406 value
= strtoull(option
, &endptr
, 0);
2408 case 0: case 'M': case 'm':
2415 node_mem
[nodenr
] = value
;
2417 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2418 node_cpumask
[nodenr
] = 0;
2420 value
= strtoull(option
, &endptr
, 10);
2423 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2425 if (*endptr
== '-') {
2426 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2427 if (endvalue
>= 63) {
2430 "only 63 CPUs in NUMA mode supported.\n");
2432 value
= (1 << (endvalue
+ 1)) - (1 << value
);
2437 node_cpumask
[nodenr
] = value
;
2444 /***********************************************************/
2447 static USBPort
*used_usb_ports
;
2448 static USBPort
*free_usb_ports
;
2450 /* ??? Maybe change this to register a hub to keep track of the topology. */
2451 void qemu_register_usb_port(USBPort
*port
, void *opaque
, int index
,
2452 usb_attachfn attach
)
2454 port
->opaque
= opaque
;
2455 port
->index
= index
;
2456 port
->attach
= attach
;
2457 port
->next
= free_usb_ports
;
2458 free_usb_ports
= port
;
2461 int usb_device_add_dev(USBDevice
*dev
)
2465 /* Find a USB port to add the device to. */
2466 port
= free_usb_ports
;
2470 /* Create a new hub and chain it on. */
2471 free_usb_ports
= NULL
;
2472 port
->next
= used_usb_ports
;
2473 used_usb_ports
= port
;
2475 hub
= usb_hub_init(VM_USB_HUB_SIZE
);
2476 usb_attach(port
, hub
);
2477 port
= free_usb_ports
;
2480 free_usb_ports
= port
->next
;
2481 port
->next
= used_usb_ports
;
2482 used_usb_ports
= port
;
2483 usb_attach(port
, dev
);
2487 static void usb_msd_password_cb(void *opaque
, int err
)
2489 USBDevice
*dev
= opaque
;
2492 usb_device_add_dev(dev
);
2494 dev
->handle_destroy(dev
);
2497 static int usb_device_add(const char *devname
, int is_hotplug
)
2502 if (!free_usb_ports
)
2505 if (strstart(devname
, "host:", &p
)) {
2506 dev
= usb_host_device_open(p
);
2507 } else if (!strcmp(devname
, "mouse")) {
2508 dev
= usb_mouse_init();
2509 } else if (!strcmp(devname
, "tablet")) {
2510 dev
= usb_tablet_init();
2511 } else if (!strcmp(devname
, "keyboard")) {
2512 dev
= usb_keyboard_init();
2513 } else if (strstart(devname
, "disk:", &p
)) {
2514 BlockDriverState
*bs
;
2516 dev
= usb_msd_init(p
);
2519 bs
= usb_msd_get_bdrv(dev
);
2520 if (bdrv_key_required(bs
)) {
2523 monitor_read_bdrv_key_start(cur_mon
, bs
, usb_msd_password_cb
,
2528 } else if (!strcmp(devname
, "wacom-tablet")) {
2529 dev
= usb_wacom_init();
2530 } else if (strstart(devname
, "serial:", &p
)) {
2531 dev
= usb_serial_init(p
);
2532 #ifdef CONFIG_BRLAPI
2533 } else if (!strcmp(devname
, "braille")) {
2534 dev
= usb_baum_init();
2536 } else if (strstart(devname
, "net:", &p
)) {
2539 if (net_client_init(NULL
, "nic", p
) < 0)
2541 nd_table
[nic
].model
= "usb";
2542 dev
= usb_net_init(&nd_table
[nic
]);
2543 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2544 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2545 bt_new_hci(qemu_find_bt_vlan(0)));
2552 return usb_device_add_dev(dev
);
2555 int usb_device_del_addr(int bus_num
, int addr
)
2561 if (!used_usb_ports
)
2567 lastp
= &used_usb_ports
;
2568 port
= used_usb_ports
;
2569 while (port
&& port
->dev
->addr
!= addr
) {
2570 lastp
= &port
->next
;
2578 *lastp
= port
->next
;
2579 usb_attach(port
, NULL
);
2580 dev
->handle_destroy(dev
);
2581 port
->next
= free_usb_ports
;
2582 free_usb_ports
= port
;
2586 static int usb_device_del(const char *devname
)
2591 if (strstart(devname
, "host:", &p
))
2592 return usb_host_device_close(p
);
2594 if (!used_usb_ports
)
2597 p
= strchr(devname
, '.');
2600 bus_num
= strtoul(devname
, NULL
, 0);
2601 addr
= strtoul(p
+ 1, NULL
, 0);
2603 return usb_device_del_addr(bus_num
, addr
);
2606 void do_usb_add(Monitor
*mon
, const char *devname
)
2608 usb_device_add(devname
, 1);
2611 void do_usb_del(Monitor
*mon
, const char *devname
)
2613 usb_device_del(devname
);
2616 void usb_info(Monitor
*mon
)
2620 const char *speed_str
;
2623 monitor_printf(mon
, "USB support not enabled\n");
2627 for (port
= used_usb_ports
; port
; port
= port
->next
) {
2631 switch(dev
->speed
) {
2635 case USB_SPEED_FULL
:
2638 case USB_SPEED_HIGH
:
2645 monitor_printf(mon
, " Device %d.%d, Speed %s Mb/s, Product %s\n",
2646 0, dev
->addr
, speed_str
, dev
->devname
);
2650 /***********************************************************/
2651 /* PCMCIA/Cardbus */
2653 static struct pcmcia_socket_entry_s
{
2654 PCMCIASocket
*socket
;
2655 struct pcmcia_socket_entry_s
*next
;
2656 } *pcmcia_sockets
= 0;
2658 void pcmcia_socket_register(PCMCIASocket
*socket
)
2660 struct pcmcia_socket_entry_s
*entry
;
2662 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2663 entry
->socket
= socket
;
2664 entry
->next
= pcmcia_sockets
;
2665 pcmcia_sockets
= entry
;
2668 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2670 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2672 ptr
= &pcmcia_sockets
;
2673 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2674 if (entry
->socket
== socket
) {
2680 void pcmcia_info(Monitor
*mon
)
2682 struct pcmcia_socket_entry_s
*iter
;
2684 if (!pcmcia_sockets
)
2685 monitor_printf(mon
, "No PCMCIA sockets\n");
2687 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2688 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2689 iter
->socket
->attached
? iter
->socket
->card_string
:
2693 /***********************************************************/
2694 /* register display */
2696 struct DisplayAllocator default_allocator
= {
2697 defaultallocator_create_displaysurface
,
2698 defaultallocator_resize_displaysurface
,
2699 defaultallocator_free_displaysurface
2702 void register_displaystate(DisplayState
*ds
)
2712 DisplayState
*get_displaystate(void)
2714 return display_state
;
2717 DisplayAllocator
*register_displayallocator(DisplayState
*ds
, DisplayAllocator
*da
)
2719 if(ds
->allocator
== &default_allocator
) ds
->allocator
= da
;
2720 return ds
->allocator
;
2725 static void dumb_display_init(void)
2727 DisplayState
*ds
= qemu_mallocz(sizeof(DisplayState
));
2728 ds
->allocator
= &default_allocator
;
2729 ds
->surface
= qemu_create_displaysurface(ds
, 640, 480);
2730 register_displaystate(ds
);
2733 /***********************************************************/
2736 typedef struct IOHandlerRecord
{
2738 IOCanRWHandler
*fd_read_poll
;
2740 IOHandler
*fd_write
;
2743 /* temporary data */
2745 struct IOHandlerRecord
*next
;
2748 static IOHandlerRecord
*first_io_handler
;
2750 /* XXX: fd_read_poll should be suppressed, but an API change is
2751 necessary in the character devices to suppress fd_can_read(). */
2752 int qemu_set_fd_handler2(int fd
,
2753 IOCanRWHandler
*fd_read_poll
,
2755 IOHandler
*fd_write
,
2758 IOHandlerRecord
**pioh
, *ioh
;
2760 if (!fd_read
&& !fd_write
) {
2761 pioh
= &first_io_handler
;
2766 if (ioh
->fd
== fd
) {
2773 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2777 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2778 ioh
->next
= first_io_handler
;
2779 first_io_handler
= ioh
;
2782 ioh
->fd_read_poll
= fd_read_poll
;
2783 ioh
->fd_read
= fd_read
;
2784 ioh
->fd_write
= fd_write
;
2785 ioh
->opaque
= opaque
;
2791 int qemu_set_fd_handler(int fd
,
2793 IOHandler
*fd_write
,
2796 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2800 /***********************************************************/
2801 /* Polling handling */
2803 typedef struct PollingEntry
{
2806 struct PollingEntry
*next
;
2809 static PollingEntry
*first_polling_entry
;
2811 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2813 PollingEntry
**ppe
, *pe
;
2814 pe
= qemu_mallocz(sizeof(PollingEntry
));
2816 pe
->opaque
= opaque
;
2817 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2822 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2824 PollingEntry
**ppe
, *pe
;
2825 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2827 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2835 /***********************************************************/
2836 /* Wait objects support */
2837 typedef struct WaitObjects
{
2839 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2840 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2841 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2844 static WaitObjects wait_objects
= {0};
2846 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2848 WaitObjects
*w
= &wait_objects
;
2850 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2852 w
->events
[w
->num
] = handle
;
2853 w
->func
[w
->num
] = func
;
2854 w
->opaque
[w
->num
] = opaque
;
2859 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2862 WaitObjects
*w
= &wait_objects
;
2865 for (i
= 0; i
< w
->num
; i
++) {
2866 if (w
->events
[i
] == handle
)
2869 w
->events
[i
] = w
->events
[i
+ 1];
2870 w
->func
[i
] = w
->func
[i
+ 1];
2871 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2879 /***********************************************************/
2880 /* ram save/restore */
2882 static int ram_get_page(QEMUFile
*f
, uint8_t *buf
, int len
)
2886 v
= qemu_get_byte(f
);
2889 if (qemu_get_buffer(f
, buf
, len
) != len
)
2893 v
= qemu_get_byte(f
);
2894 memset(buf
, v
, len
);
2900 if (qemu_file_has_error(f
))
2906 static int ram_load_v1(QEMUFile
*f
, void *opaque
)
2911 if (qemu_get_be32(f
) != last_ram_offset
)
2913 for(i
= 0; i
< last_ram_offset
; i
+= TARGET_PAGE_SIZE
) {
2914 ret
= ram_get_page(f
, qemu_get_ram_ptr(i
), TARGET_PAGE_SIZE
);
2921 #define BDRV_HASH_BLOCK_SIZE 1024
2922 #define IOBUF_SIZE 4096
2923 #define RAM_CBLOCK_MAGIC 0xfabe
2925 typedef struct RamDecompressState
{
2928 uint8_t buf
[IOBUF_SIZE
];
2929 } RamDecompressState
;
2931 static int ram_decompress_open(RamDecompressState
*s
, QEMUFile
*f
)
2934 memset(s
, 0, sizeof(*s
));
2936 ret
= inflateInit(&s
->zstream
);
2942 static int ram_decompress_buf(RamDecompressState
*s
, uint8_t *buf
, int len
)
2946 s
->zstream
.avail_out
= len
;
2947 s
->zstream
.next_out
= buf
;
2948 while (s
->zstream
.avail_out
> 0) {
2949 if (s
->zstream
.avail_in
== 0) {
2950 if (qemu_get_be16(s
->f
) != RAM_CBLOCK_MAGIC
)
2952 clen
= qemu_get_be16(s
->f
);
2953 if (clen
> IOBUF_SIZE
)
2955 qemu_get_buffer(s
->f
, s
->buf
, clen
);
2956 s
->zstream
.avail_in
= clen
;
2957 s
->zstream
.next_in
= s
->buf
;
2959 ret
= inflate(&s
->zstream
, Z_PARTIAL_FLUSH
);
2960 if (ret
!= Z_OK
&& ret
!= Z_STREAM_END
) {
2967 static void ram_decompress_close(RamDecompressState
*s
)
2969 inflateEnd(&s
->zstream
);
2972 #define RAM_SAVE_FLAG_FULL 0x01
2973 #define RAM_SAVE_FLAG_COMPRESS 0x02
2974 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2975 #define RAM_SAVE_FLAG_PAGE 0x08
2976 #define RAM_SAVE_FLAG_EOS 0x10
2978 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2980 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2981 uint32_t *array
= (uint32_t *)page
;
2984 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2985 if (array
[i
] != val
)
2992 static int ram_save_block(QEMUFile
*f
)
2994 static ram_addr_t current_addr
= 0;
2995 ram_addr_t saved_addr
= current_addr
;
2996 ram_addr_t addr
= 0;
2999 while (addr
< last_ram_offset
) {
3000 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
3003 cpu_physical_memory_reset_dirty(current_addr
,
3004 current_addr
+ TARGET_PAGE_SIZE
,
3005 MIGRATION_DIRTY_FLAG
);
3007 p
= qemu_get_ram_ptr(current_addr
);
3009 if (is_dup_page(p
, *p
)) {
3010 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
3011 qemu_put_byte(f
, *p
);
3013 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
3014 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
3020 addr
+= TARGET_PAGE_SIZE
;
3021 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
3027 static uint64_t bytes_transferred
= 0;
3029 static ram_addr_t
ram_save_remaining(void)
3032 ram_addr_t count
= 0;
3034 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
3035 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
3042 uint64_t ram_bytes_remaining(void)
3044 return ram_save_remaining() * TARGET_PAGE_SIZE
;
3047 uint64_t ram_bytes_transferred(void)
3049 return bytes_transferred
;
3052 uint64_t ram_bytes_total(void)
3054 return last_ram_offset
;
3057 static int ram_save_live(QEMUFile
*f
, int stage
, void *opaque
)
3060 uint64_t bytes_transferred_last
;
3062 uint64_t expected_time
= 0;
3064 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
3065 qemu_file_set_error(f
);
3070 /* Make sure all dirty bits are set */
3071 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
3072 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
3073 cpu_physical_memory_set_dirty(addr
);
3076 /* Enable dirty memory tracking */
3077 cpu_physical_memory_set_dirty_tracking(1);
3079 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
3082 bytes_transferred_last
= bytes_transferred
;
3083 bwidth
= get_clock();
3085 while (!qemu_file_rate_limit(f
)) {
3088 ret
= ram_save_block(f
);
3089 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
3090 if (ret
== 0) /* no more blocks */
3094 bwidth
= get_clock() - bwidth
;
3095 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
3097 /* if we haven't transferred anything this round, force expected_time to a
3098 * a very high value, but without crashing */
3102 /* try transferring iterative blocks of memory */
3106 /* flush all remaining blocks regardless of rate limiting */
3107 while (ram_save_block(f
) != 0) {
3108 bytes_transferred
+= TARGET_PAGE_SIZE
;
3110 cpu_physical_memory_set_dirty_tracking(0);
3113 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
3115 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
3117 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
3120 static int ram_load_dead(QEMUFile
*f
, void *opaque
)
3122 RamDecompressState s1
, *s
= &s1
;
3126 if (ram_decompress_open(s
, f
) < 0)
3128 for(i
= 0; i
< last_ram_offset
; i
+= BDRV_HASH_BLOCK_SIZE
) {
3129 if (ram_decompress_buf(s
, buf
, 1) < 0) {
3130 fprintf(stderr
, "Error while reading ram block header\n");
3134 if (ram_decompress_buf(s
, qemu_get_ram_ptr(i
),
3135 BDRV_HASH_BLOCK_SIZE
) < 0) {
3136 fprintf(stderr
, "Error while reading ram block address=0x%08" PRIx64
, (uint64_t)i
);
3141 printf("Error block header\n");
3145 ram_decompress_close(s
);
3150 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
3155 if (version_id
== 1)
3156 return ram_load_v1(f
, opaque
);
3158 if (version_id
== 2) {
3159 if (qemu_get_be32(f
) != last_ram_offset
)
3161 return ram_load_dead(f
, opaque
);
3164 if (version_id
!= 3)
3168 addr
= qemu_get_be64(f
);
3170 flags
= addr
& ~TARGET_PAGE_MASK
;
3171 addr
&= TARGET_PAGE_MASK
;
3173 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
3174 if (addr
!= last_ram_offset
)
3178 if (flags
& RAM_SAVE_FLAG_FULL
) {
3179 if (ram_load_dead(f
, opaque
) < 0)
3183 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
3184 uint8_t ch
= qemu_get_byte(f
);
3185 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
3188 (!kvm_enabled() || kvm_has_sync_mmu())) {
3189 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
3192 } else if (flags
& RAM_SAVE_FLAG_PAGE
)
3193 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
3194 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
3199 void qemu_service_io(void)
3201 qemu_notify_event();
3204 /***********************************************************/
3205 /* bottom halves (can be seen as timers which expire ASAP) */
3216 static QEMUBH
*first_bh
= NULL
;
3218 QEMUBH
*qemu_bh_new(QEMUBHFunc
*cb
, void *opaque
)
3221 bh
= qemu_mallocz(sizeof(QEMUBH
));
3223 bh
->opaque
= opaque
;
3224 bh
->next
= first_bh
;
3229 int qemu_bh_poll(void)
3235 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3236 if (!bh
->deleted
&& bh
->scheduled
) {
3245 /* remove deleted bhs */
3259 void qemu_bh_schedule_idle(QEMUBH
*bh
)
3267 void qemu_bh_schedule(QEMUBH
*bh
)
3273 /* stop the currently executing CPU to execute the BH ASAP */
3274 qemu_notify_event();
3277 void qemu_bh_cancel(QEMUBH
*bh
)
3282 void qemu_bh_delete(QEMUBH
*bh
)
3288 static void qemu_bh_update_timeout(int *timeout
)
3292 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3293 if (!bh
->deleted
&& bh
->scheduled
) {
3295 /* idle bottom halves will be polled at least
3297 *timeout
= MIN(10, *timeout
);
3299 /* non-idle bottom halves will be executed
3308 /***********************************************************/
3309 /* machine registration */
3311 static QEMUMachine
*first_machine
= NULL
;
3312 QEMUMachine
*current_machine
= NULL
;
3314 int qemu_register_machine(QEMUMachine
*m
)
3317 pm
= &first_machine
;
3325 static QEMUMachine
*find_machine(const char *name
)
3329 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3330 if (!strcmp(m
->name
, name
))
3336 static QEMUMachine
*find_default_machine(void)
3340 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3341 if (m
->is_default
) {
3348 /***********************************************************/
3349 /* main execution loop */
3351 static void gui_update(void *opaque
)
3353 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3354 DisplayState
*ds
= opaque
;
3355 DisplayChangeListener
*dcl
= ds
->listeners
;
3359 while (dcl
!= NULL
) {
3360 if (dcl
->gui_timer_interval
&&
3361 dcl
->gui_timer_interval
< interval
)
3362 interval
= dcl
->gui_timer_interval
;
3365 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3368 static void nographic_update(void *opaque
)
3370 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3372 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3375 struct vm_change_state_entry
{
3376 VMChangeStateHandler
*cb
;
3378 LIST_ENTRY (vm_change_state_entry
) entries
;
3381 static LIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3383 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3386 VMChangeStateEntry
*e
;
3388 e
= qemu_mallocz(sizeof (*e
));
3392 LIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3396 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3398 LIST_REMOVE (e
, entries
);
3402 static void vm_state_notify(int running
, int reason
)
3404 VMChangeStateEntry
*e
;
3406 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3407 e
->cb(e
->opaque
, running
, reason
);
3411 static void resume_all_vcpus(void);
3412 static void pause_all_vcpus(void);
3419 vm_state_notify(1, 0);
3420 qemu_rearm_alarm_timer(alarm_timer
);
3425 /* reset/shutdown handler */
3427 typedef struct QEMUResetEntry
{
3428 QEMUResetHandler
*func
;
3430 struct QEMUResetEntry
*next
;
3433 static QEMUResetEntry
*first_reset_entry
;
3434 static int reset_requested
;
3435 static int shutdown_requested
;
3436 static int powerdown_requested
;
3437 static int debug_requested
;
3438 static int vmstop_requested
;
3440 int qemu_shutdown_requested(void)
3442 int r
= shutdown_requested
;
3443 shutdown_requested
= 0;
3447 int qemu_reset_requested(void)
3449 int r
= reset_requested
;
3450 reset_requested
= 0;
3454 int qemu_powerdown_requested(void)
3456 int r
= powerdown_requested
;
3457 powerdown_requested
= 0;
3461 static int qemu_debug_requested(void)
3463 int r
= debug_requested
;
3464 debug_requested
= 0;
3468 static int qemu_vmstop_requested(void)
3470 int r
= vmstop_requested
;
3471 vmstop_requested
= 0;
3475 static void do_vm_stop(int reason
)
3478 cpu_disable_ticks();
3481 vm_state_notify(0, reason
);
3485 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3487 QEMUResetEntry
**pre
, *re
;
3489 pre
= &first_reset_entry
;
3490 while (*pre
!= NULL
)
3491 pre
= &(*pre
)->next
;
3492 re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3494 re
->opaque
= opaque
;
3499 void qemu_system_reset(void)
3503 /* reset all devices */
3504 for(re
= first_reset_entry
; re
!= NULL
; re
= re
->next
) {
3505 re
->func(re
->opaque
);
3509 void qemu_system_reset_request(void)
3512 shutdown_requested
= 1;
3514 reset_requested
= 1;
3516 qemu_notify_event();
3519 void qemu_system_shutdown_request(void)
3521 shutdown_requested
= 1;
3522 qemu_notify_event();
3525 void qemu_system_powerdown_request(void)
3527 powerdown_requested
= 1;
3528 qemu_notify_event();
3531 #ifdef CONFIG_IOTHREAD
3532 static void qemu_system_vmstop_request(int reason
)
3534 vmstop_requested
= reason
;
3535 qemu_notify_event();
3540 static int io_thread_fd
= -1;
3542 static void qemu_event_increment(void)
3544 static const char byte
= 0;
3546 if (io_thread_fd
== -1)
3549 write(io_thread_fd
, &byte
, sizeof(byte
));
3552 static void qemu_event_read(void *opaque
)
3554 int fd
= (unsigned long)opaque
;
3557 /* Drain the notify pipe */
3560 len
= read(fd
, buffer
, sizeof(buffer
));
3561 } while ((len
== -1 && errno
== EINTR
) || len
> 0);
3564 static int qemu_event_init(void)
3573 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3577 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3581 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3582 (void *)(unsigned long)fds
[0]);
3584 io_thread_fd
= fds
[1];
3593 HANDLE qemu_event_handle
;
3595 static void dummy_event_handler(void *opaque
)
3599 static int qemu_event_init(void)
3601 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3602 if (!qemu_event_handle
) {
3603 perror("Failed CreateEvent");
3606 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3610 static void qemu_event_increment(void)
3612 SetEvent(qemu_event_handle
);
3616 static int cpu_can_run(CPUState
*env
)
3625 #ifndef CONFIG_IOTHREAD
3626 static int qemu_init_main_loop(void)
3628 return qemu_event_init();
3631 void qemu_init_vcpu(void *_env
)
3633 CPUState
*env
= _env
;
3640 int qemu_cpu_self(void *env
)
3645 static void resume_all_vcpus(void)
3649 static void pause_all_vcpus(void)
3653 void qemu_cpu_kick(void *env
)
3658 void qemu_notify_event(void)
3660 CPUState
*env
= cpu_single_env
;
3665 if (env
->kqemu_enabled
)
3666 kqemu_cpu_interrupt(env
);
3671 #define qemu_mutex_lock_iothread() do { } while (0)
3672 #define qemu_mutex_unlock_iothread() do { } while (0)
3674 void vm_stop(int reason
)
3679 #else /* CONFIG_IOTHREAD */
3681 #include "qemu-thread.h"
3683 QemuMutex qemu_global_mutex
;
3684 static QemuMutex qemu_fair_mutex
;
3686 static QemuThread io_thread
;
3688 static QemuThread
*tcg_cpu_thread
;
3689 static QemuCond
*tcg_halt_cond
;
3691 static int qemu_system_ready
;
3693 static QemuCond qemu_cpu_cond
;
3695 static QemuCond qemu_system_cond
;
3696 static QemuCond qemu_pause_cond
;
3698 static void block_io_signals(void);
3699 static void unblock_io_signals(void);
3700 static int tcg_has_work(void);
3702 static int qemu_init_main_loop(void)
3706 ret
= qemu_event_init();
3710 qemu_cond_init(&qemu_pause_cond
);
3711 qemu_mutex_init(&qemu_fair_mutex
);
3712 qemu_mutex_init(&qemu_global_mutex
);
3713 qemu_mutex_lock(&qemu_global_mutex
);
3715 unblock_io_signals();
3716 qemu_thread_self(&io_thread
);
3721 static void qemu_wait_io_event(CPUState
*env
)
3723 while (!tcg_has_work())
3724 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3726 qemu_mutex_unlock(&qemu_global_mutex
);
3729 * Users of qemu_global_mutex can be starved, having no chance
3730 * to acquire it since this path will get to it first.
3731 * So use another lock to provide fairness.
3733 qemu_mutex_lock(&qemu_fair_mutex
);
3734 qemu_mutex_unlock(&qemu_fair_mutex
);
3736 qemu_mutex_lock(&qemu_global_mutex
);
3740 qemu_cond_signal(&qemu_pause_cond
);
3744 static int qemu_cpu_exec(CPUState
*env
);
3746 static void *kvm_cpu_thread_fn(void *arg
)
3748 CPUState
*env
= arg
;
3751 qemu_thread_self(env
->thread
);
3753 /* signal CPU creation */
3754 qemu_mutex_lock(&qemu_global_mutex
);
3756 qemu_cond_signal(&qemu_cpu_cond
);
3758 /* and wait for machine initialization */
3759 while (!qemu_system_ready
)
3760 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3763 if (cpu_can_run(env
))
3765 qemu_wait_io_event(env
);
3771 static void tcg_cpu_exec(void);
3773 static void *tcg_cpu_thread_fn(void *arg
)
3775 CPUState
*env
= arg
;
3778 qemu_thread_self(env
->thread
);
3780 /* signal CPU creation */
3781 qemu_mutex_lock(&qemu_global_mutex
);
3782 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3784 qemu_cond_signal(&qemu_cpu_cond
);
3786 /* and wait for machine initialization */
3787 while (!qemu_system_ready
)
3788 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3792 qemu_wait_io_event(cur_cpu
);
3798 void qemu_cpu_kick(void *_env
)
3800 CPUState
*env
= _env
;
3801 qemu_cond_broadcast(env
->halt_cond
);
3803 qemu_thread_signal(env
->thread
, SIGUSR1
);
3806 int qemu_cpu_self(void *env
)
3808 return (cpu_single_env
!= NULL
);
3811 static void cpu_signal(int sig
)
3814 cpu_exit(cpu_single_env
);
3817 static void block_io_signals(void)
3820 struct sigaction sigact
;
3823 sigaddset(&set
, SIGUSR2
);
3824 sigaddset(&set
, SIGIO
);
3825 sigaddset(&set
, SIGALRM
);
3826 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3829 sigaddset(&set
, SIGUSR1
);
3830 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3832 memset(&sigact
, 0, sizeof(sigact
));
3833 sigact
.sa_handler
= cpu_signal
;
3834 sigaction(SIGUSR1
, &sigact
, NULL
);
3837 static void unblock_io_signals(void)
3842 sigaddset(&set
, SIGUSR2
);
3843 sigaddset(&set
, SIGIO
);
3844 sigaddset(&set
, SIGALRM
);
3845 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3848 sigaddset(&set
, SIGUSR1
);
3849 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3852 static void qemu_signal_lock(unsigned int msecs
)
3854 qemu_mutex_lock(&qemu_fair_mutex
);
3856 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3857 qemu_thread_signal(tcg_cpu_thread
, SIGUSR1
);
3858 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3861 qemu_mutex_unlock(&qemu_fair_mutex
);
3864 static void qemu_mutex_lock_iothread(void)
3866 if (kvm_enabled()) {
3867 qemu_mutex_lock(&qemu_fair_mutex
);
3868 qemu_mutex_lock(&qemu_global_mutex
);
3869 qemu_mutex_unlock(&qemu_fair_mutex
);
3871 qemu_signal_lock(100);
3874 static void qemu_mutex_unlock_iothread(void)
3876 qemu_mutex_unlock(&qemu_global_mutex
);
3879 static int all_vcpus_paused(void)
3881 CPUState
*penv
= first_cpu
;
3886 penv
= (CPUState
*)penv
->next_cpu
;
3892 static void pause_all_vcpus(void)
3894 CPUState
*penv
= first_cpu
;
3898 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3899 qemu_cpu_kick(penv
);
3900 penv
= (CPUState
*)penv
->next_cpu
;
3903 while (!all_vcpus_paused()) {
3904 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3907 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3908 penv
= (CPUState
*)penv
->next_cpu
;
3913 static void resume_all_vcpus(void)
3915 CPUState
*penv
= first_cpu
;
3920 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3921 qemu_cpu_kick(penv
);
3922 penv
= (CPUState
*)penv
->next_cpu
;
3926 static void tcg_init_vcpu(void *_env
)
3928 CPUState
*env
= _env
;
3929 /* share a single thread for all cpus with TCG */
3930 if (!tcg_cpu_thread
) {
3931 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3932 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3933 qemu_cond_init(env
->halt_cond
);
3934 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3935 while (env
->created
== 0)
3936 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3937 tcg_cpu_thread
= env
->thread
;
3938 tcg_halt_cond
= env
->halt_cond
;
3940 env
->thread
= tcg_cpu_thread
;
3941 env
->halt_cond
= tcg_halt_cond
;
3945 static void kvm_start_vcpu(CPUState
*env
)
3948 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3949 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3950 qemu_cond_init(env
->halt_cond
);
3951 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3952 while (env
->created
== 0)
3953 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3956 void qemu_init_vcpu(void *_env
)
3958 CPUState
*env
= _env
;
3961 kvm_start_vcpu(env
);
3966 void qemu_notify_event(void)
3968 qemu_event_increment();
3971 void vm_stop(int reason
)
3974 qemu_thread_self(&me
);
3976 if (!qemu_thread_equal(&me
, &io_thread
)) {
3977 qemu_system_vmstop_request(reason
);
3979 * FIXME: should not return to device code in case
3980 * vm_stop() has been requested.
3982 if (cpu_single_env
) {
3983 cpu_exit(cpu_single_env
);
3984 cpu_single_env
->stop
= 1;
3995 static void host_main_loop_wait(int *timeout
)
4001 /* XXX: need to suppress polling by better using win32 events */
4003 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
4004 ret
|= pe
->func(pe
->opaque
);
4008 WaitObjects
*w
= &wait_objects
;
4010 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
4011 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
4012 if (w
->func
[ret
- WAIT_OBJECT_0
])
4013 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
4015 /* Check for additional signaled events */
4016 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
4018 /* Check if event is signaled */
4019 ret2
= WaitForSingleObject(w
->events
[i
], 0);
4020 if(ret2
== WAIT_OBJECT_0
) {
4022 w
->func
[i
](w
->opaque
[i
]);
4023 } else if (ret2
== WAIT_TIMEOUT
) {
4025 err
= GetLastError();
4026 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
4029 } else if (ret
== WAIT_TIMEOUT
) {
4031 err
= GetLastError();
4032 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
4039 static void host_main_loop_wait(int *timeout
)
4044 void main_loop_wait(int timeout
)
4046 IOHandlerRecord
*ioh
;
4047 fd_set rfds
, wfds
, xfds
;
4051 qemu_bh_update_timeout(&timeout
);
4053 host_main_loop_wait(&timeout
);
4055 /* poll any events */
4056 /* XXX: separate device handlers from system ones */
4061 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
4065 (!ioh
->fd_read_poll
||
4066 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
4067 FD_SET(ioh
->fd
, &rfds
);
4071 if (ioh
->fd_write
) {
4072 FD_SET(ioh
->fd
, &wfds
);
4078 tv
.tv_sec
= timeout
/ 1000;
4079 tv
.tv_usec
= (timeout
% 1000) * 1000;
4081 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
4083 qemu_mutex_unlock_iothread();
4084 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
4085 qemu_mutex_lock_iothread();
4087 IOHandlerRecord
**pioh
;
4089 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
4090 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
4091 ioh
->fd_read(ioh
->opaque
);
4093 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
4094 ioh
->fd_write(ioh
->opaque
);
4098 /* remove deleted IO handlers */
4099 pioh
= &first_io_handler
;
4110 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
4112 /* rearm timer, if not periodic */
4113 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
4114 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
4115 qemu_rearm_alarm_timer(alarm_timer
);
4118 /* vm time timers */
4120 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
4121 qemu_run_timers(&active_timers
[QEMU_TIMER_VIRTUAL
],
4122 qemu_get_clock(vm_clock
));
4125 /* real time timers */
4126 qemu_run_timers(&active_timers
[QEMU_TIMER_REALTIME
],
4127 qemu_get_clock(rt_clock
));
4129 /* Check bottom-halves last in case any of the earlier events triggered
4135 static int qemu_cpu_exec(CPUState
*env
)
4138 #ifdef CONFIG_PROFILER
4142 #ifdef CONFIG_PROFILER
4143 ti
= profile_getclock();
4148 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
4149 env
->icount_decr
.u16
.low
= 0;
4150 env
->icount_extra
= 0;
4151 count
= qemu_next_deadline();
4152 count
= (count
+ (1 << icount_time_shift
) - 1)
4153 >> icount_time_shift
;
4154 qemu_icount
+= count
;
4155 decr
= (count
> 0xffff) ? 0xffff : count
;
4157 env
->icount_decr
.u16
.low
= decr
;
4158 env
->icount_extra
= count
;
4160 ret
= cpu_exec(env
);
4161 #ifdef CONFIG_PROFILER
4162 qemu_time
+= profile_getclock() - ti
;
4165 /* Fold pending instructions back into the
4166 instruction counter, and clear the interrupt flag. */
4167 qemu_icount
-= (env
->icount_decr
.u16
.low
4168 + env
->icount_extra
);
4169 env
->icount_decr
.u32
= 0;
4170 env
->icount_extra
= 0;
4175 static void tcg_cpu_exec(void)
4179 if (next_cpu
== NULL
)
4180 next_cpu
= first_cpu
;
4181 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
4182 CPUState
*env
= cur_cpu
= next_cpu
;
4186 if (timer_alarm_pending
) {
4187 timer_alarm_pending
= 0;
4190 if (cpu_can_run(env
))
4191 ret
= qemu_cpu_exec(env
);
4192 if (ret
== EXCP_DEBUG
) {
4193 gdb_set_stop_cpu(env
);
4194 debug_requested
= 1;
4200 static int cpu_has_work(CPUState
*env
)
4208 if (qemu_cpu_has_work(env
))
4213 static int tcg_has_work(void)
4217 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
4218 if (cpu_has_work(env
))
4223 static int qemu_calculate_timeout(void)
4225 #ifndef CONFIG_IOTHREAD
4230 else if (tcg_has_work())
4232 else if (!use_icount
)
4235 /* XXX: use timeout computed from timers */
4238 /* Advance virtual time to the next event. */
4239 if (use_icount
== 1) {
4240 /* When not using an adaptive execution frequency
4241 we tend to get badly out of sync with real time,
4242 so just delay for a reasonable amount of time. */
4245 delta
= cpu_get_icount() - cpu_get_clock();
4248 /* If virtual time is ahead of real time then just
4250 timeout
= (delta
/ 1000000) + 1;
4252 /* Wait for either IO to occur or the next
4254 add
= qemu_next_deadline();
4255 /* We advance the timer before checking for IO.
4256 Limit the amount we advance so that early IO
4257 activity won't get the guest too far ahead. */
4261 add
= (add
+ (1 << icount_time_shift
) - 1)
4262 >> icount_time_shift
;
4264 timeout
= delta
/ 1000000;
4271 #else /* CONFIG_IOTHREAD */
4276 static int vm_can_run(void)
4278 if (powerdown_requested
)
4280 if (reset_requested
)
4282 if (shutdown_requested
)
4284 if (debug_requested
)
4289 static void main_loop(void)
4293 #ifdef CONFIG_IOTHREAD
4294 qemu_system_ready
= 1;
4295 qemu_cond_broadcast(&qemu_system_cond
);
4300 #ifdef CONFIG_PROFILER
4303 #ifndef CONFIG_IOTHREAD
4306 #ifdef CONFIG_PROFILER
4307 ti
= profile_getclock();
4309 main_loop_wait(qemu_calculate_timeout());
4310 #ifdef CONFIG_PROFILER
4311 dev_time
+= profile_getclock() - ti
;
4313 } while (vm_can_run());
4315 if (qemu_debug_requested())
4316 vm_stop(EXCP_DEBUG
);
4317 if (qemu_shutdown_requested()) {
4324 if (qemu_reset_requested()) {
4326 qemu_system_reset();
4329 if (qemu_powerdown_requested())
4330 qemu_system_powerdown();
4331 if ((r
= qemu_vmstop_requested()))
4337 static void version(void)
4339 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4342 static void help(int exitcode
)
4345 printf("usage: %s [options] [disk_image]\n"
4347 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4349 #define DEF(option, opt_arg, opt_enum, opt_help) \
4351 #define DEFHEADING(text) stringify(text) "\n"
4352 #include "qemu-options.h"
4357 "During emulation, the following keys are useful:\n"
4358 "ctrl-alt-f toggle full screen\n"
4359 "ctrl-alt-n switch to virtual console 'n'\n"
4360 "ctrl-alt toggle mouse and keyboard grab\n"
4362 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4367 DEFAULT_NETWORK_SCRIPT
,
4368 DEFAULT_NETWORK_DOWN_SCRIPT
,
4370 DEFAULT_GDBSTUB_PORT
,
4375 #define HAS_ARG 0x0001
4378 #define DEF(option, opt_arg, opt_enum, opt_help) \
4380 #define DEFHEADING(text)
4381 #include "qemu-options.h"
4387 typedef struct QEMUOption
{
4393 static const QEMUOption qemu_options
[] = {
4394 { "h", 0, QEMU_OPTION_h
},
4395 #define DEF(option, opt_arg, opt_enum, opt_help) \
4396 { option, opt_arg, opt_enum },
4397 #define DEFHEADING(text)
4398 #include "qemu-options.h"
4406 struct soundhw soundhw
[] = {
4407 #ifdef HAS_AUDIO_CHOICE
4408 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4414 { .init_isa
= pcspk_audio_init
}
4421 "Creative Sound Blaster 16",
4424 { .init_isa
= SB16_init
}
4428 #ifdef CONFIG_CS4231A
4434 { .init_isa
= cs4231a_init
}
4442 "Yamaha YMF262 (OPL3)",
4444 "Yamaha YM3812 (OPL2)",
4448 { .init_isa
= Adlib_init
}
4455 "Gravis Ultrasound GF1",
4458 { .init_isa
= GUS_init
}
4465 "Intel 82801AA AC97 Audio",
4468 { .init_pci
= ac97_init
}
4472 #ifdef CONFIG_ES1370
4475 "ENSONIQ AudioPCI ES1370",
4478 { .init_pci
= es1370_init
}
4482 #endif /* HAS_AUDIO_CHOICE */
4484 { NULL
, NULL
, 0, 0, { NULL
} }
4487 static void select_soundhw (const char *optarg
)
4491 if (*optarg
== '?') {
4494 printf ("Valid sound card names (comma separated):\n");
4495 for (c
= soundhw
; c
->name
; ++c
) {
4496 printf ("%-11s %s\n", c
->name
, c
->descr
);
4498 printf ("\n-soundhw all will enable all of the above\n");
4499 exit (*optarg
!= '?');
4507 if (!strcmp (optarg
, "all")) {
4508 for (c
= soundhw
; c
->name
; ++c
) {
4516 e
= strchr (p
, ',');
4517 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4519 for (c
= soundhw
; c
->name
; ++c
) {
4520 if (!strncmp (c
->name
, p
, l
)) {
4529 "Unknown sound card name (too big to show)\n");
4532 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4537 p
+= l
+ (e
!= NULL
);
4541 goto show_valid_cards
;
4546 static void select_vgahw (const char *p
)
4550 cirrus_vga_enabled
= 0;
4551 std_vga_enabled
= 0;
4554 if (strstart(p
, "std", &opts
)) {
4555 std_vga_enabled
= 1;
4556 } else if (strstart(p
, "cirrus", &opts
)) {
4557 cirrus_vga_enabled
= 1;
4558 } else if (strstart(p
, "vmware", &opts
)) {
4560 } else if (strstart(p
, "xenfb", &opts
)) {
4562 } else if (!strstart(p
, "none", &opts
)) {
4564 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4568 const char *nextopt
;
4570 if (strstart(opts
, ",retrace=", &nextopt
)) {
4572 if (strstart(opts
, "dumb", &nextopt
))
4573 vga_retrace_method
= VGA_RETRACE_DUMB
;
4574 else if (strstart(opts
, "precise", &nextopt
))
4575 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4576 else goto invalid_vga
;
4577 } else goto invalid_vga
;
4583 static int balloon_parse(const char *arg
)
4588 if (!strcmp(arg
, "none")) {
4590 } else if (!strncmp(arg
, "virtio", 6)) {
4592 if (arg
[6] == ',') {
4594 if (get_param_value(buf
, sizeof(buf
), "addr", p
)) {
4595 virtio_balloon_devaddr
= strdup(buf
);
4606 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4608 exit(STATUS_CONTROL_C_EXIT
);
4613 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4617 if(strlen(str
) != 36)
4620 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4621 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4622 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4628 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4634 #define MAX_NET_CLIENTS 32
4638 static void termsig_handler(int signal
)
4640 qemu_system_shutdown_request();
4643 static void sigchld_handler(int signal
)
4645 waitpid(-1, NULL
, WNOHANG
);
4648 static void sighandler_setup(void)
4650 struct sigaction act
;
4652 memset(&act
, 0, sizeof(act
));
4653 act
.sa_handler
= termsig_handler
;
4654 sigaction(SIGINT
, &act
, NULL
);
4655 sigaction(SIGHUP
, &act
, NULL
);
4656 sigaction(SIGTERM
, &act
, NULL
);
4658 act
.sa_handler
= sigchld_handler
;
4659 act
.sa_flags
= SA_NOCLDSTOP
;
4660 sigaction(SIGCHLD
, &act
, NULL
);
4666 /* Look for support files in the same directory as the executable. */
4667 static char *find_datadir(const char *argv0
)
4673 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4680 while (p
!= buf
&& *p
!= '\\')
4683 if (access(buf
, R_OK
) == 0) {
4684 return qemu_strdup(buf
);
4690 /* Find a likely location for support files using the location of the binary.
4691 For installed binaries this will be "$bindir/../share/qemu". When
4692 running from the build tree this will be "$bindir/../pc-bios". */
4693 #define SHARE_SUFFIX "/share/qemu"
4694 #define BUILD_SUFFIX "/pc-bios"
4695 static char *find_datadir(const char *argv0
)
4705 #if defined(__linux__)
4708 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4714 #elif defined(__FreeBSD__)
4717 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4724 /* If we don't have any way of figuring out the actual executable
4725 location then try argv[0]. */
4730 p
= realpath(argv0
, p
);
4738 max_len
= strlen(dir
) +
4739 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4740 res
= qemu_mallocz(max_len
);
4741 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4742 if (access(res
, R_OK
)) {
4743 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4744 if (access(res
, R_OK
)) {
4758 char *qemu_find_file(int type
, const char *name
)
4764 /* If name contains path separators then try it as a straight path. */
4765 if ((strchr(name
, '/') || strchr(name
, '\\'))
4766 && access(name
, R_OK
) == 0) {
4767 return strdup(name
);
4770 case QEMU_FILE_TYPE_BIOS
:
4773 case QEMU_FILE_TYPE_KEYMAP
:
4774 subdir
= "keymaps/";
4779 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4780 buf
= qemu_mallocz(len
);
4781 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4782 if (access(buf
, R_OK
)) {
4789 int main(int argc
, char **argv
, char **envp
)
4791 const char *gdbstub_dev
= NULL
;
4792 uint32_t boot_devices_bitmap
= 0;
4794 int snapshot
, linux_boot
, net_boot
;
4795 const char *initrd_filename
;
4796 const char *kernel_filename
, *kernel_cmdline
;
4797 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4799 DisplayChangeListener
*dcl
;
4800 int cyls
, heads
, secs
, translation
;
4801 const char *net_clients
[MAX_NET_CLIENTS
];
4803 const char *bt_opts
[MAX_BT_CMDLINE
];
4807 const char *r
, *optarg
;
4808 CharDriverState
*monitor_hd
= NULL
;
4809 const char *monitor_device
;
4810 const char *serial_devices
[MAX_SERIAL_PORTS
];
4811 int serial_device_index
;
4812 const char *parallel_devices
[MAX_PARALLEL_PORTS
];
4813 int parallel_device_index
;
4814 const char *virtio_consoles
[MAX_VIRTIO_CONSOLES
];
4815 int virtio_console_index
;
4816 const char *loadvm
= NULL
;
4817 QEMUMachine
*machine
;
4818 const char *cpu_model
;
4819 const char *usb_devices
[MAX_USB_CMDLINE
];
4820 int usb_devices_index
;
4825 const char *pid_file
= NULL
;
4826 const char *incoming
= NULL
;
4829 struct passwd
*pwd
= NULL
;
4830 const char *chroot_dir
= NULL
;
4831 const char *run_as
= NULL
;
4834 int show_vnc_port
= 0;
4836 qemu_cache_utils_init(envp
);
4838 LIST_INIT (&vm_change_state_head
);
4841 struct sigaction act
;
4842 sigfillset(&act
.sa_mask
);
4844 act
.sa_handler
= SIG_IGN
;
4845 sigaction(SIGPIPE
, &act
, NULL
);
4848 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4849 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4850 QEMU to run on a single CPU */
4855 h
= GetCurrentProcess();
4856 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4857 for(i
= 0; i
< 32; i
++) {
4858 if (mask
& (1 << i
))
4863 SetProcessAffinityMask(h
, mask
);
4869 module_call_init(MODULE_INIT_MACHINE
);
4870 machine
= find_default_machine();
4872 initrd_filename
= NULL
;
4875 kernel_filename
= NULL
;
4876 kernel_cmdline
= "";
4877 cyls
= heads
= secs
= 0;
4878 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4879 monitor_device
= "vc:80Cx24C";
4881 serial_devices
[0] = "vc:80Cx24C";
4882 for(i
= 1; i
< MAX_SERIAL_PORTS
; i
++)
4883 serial_devices
[i
] = NULL
;
4884 serial_device_index
= 0;
4886 parallel_devices
[0] = "vc:80Cx24C";
4887 for(i
= 1; i
< MAX_PARALLEL_PORTS
; i
++)
4888 parallel_devices
[i
] = NULL
;
4889 parallel_device_index
= 0;
4891 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++)
4892 virtio_consoles
[i
] = NULL
;
4893 virtio_console_index
= 0;
4895 for (i
= 0; i
< MAX_NODES
; i
++) {
4897 node_cpumask
[i
] = 0;
4900 usb_devices_index
= 0;
4914 register_watchdogs();
4922 hda_index
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4924 const QEMUOption
*popt
;
4927 /* Treat --foo the same as -foo. */
4930 popt
= qemu_options
;
4933 fprintf(stderr
, "%s: invalid option -- '%s'\n",
4937 if (!strcmp(popt
->name
, r
+ 1))
4941 if (popt
->flags
& HAS_ARG
) {
4942 if (optind
>= argc
) {
4943 fprintf(stderr
, "%s: option '%s' requires an argument\n",
4947 optarg
= argv
[optind
++];
4952 switch(popt
->index
) {
4954 machine
= find_machine(optarg
);
4957 printf("Supported machines are:\n");
4958 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4959 printf("%-10s %s%s\n",
4961 m
->is_default
? " (default)" : "");
4963 exit(*optarg
!= '?');
4966 case QEMU_OPTION_cpu
:
4967 /* hw initialization will check this */
4968 if (*optarg
== '?') {
4969 /* XXX: implement xxx_cpu_list for targets that still miss it */
4970 #if defined(cpu_list)
4971 cpu_list(stdout
, &fprintf
);
4978 case QEMU_OPTION_initrd
:
4979 initrd_filename
= optarg
;
4981 case QEMU_OPTION_hda
:
4983 hda_index
= drive_add(optarg
, HD_ALIAS
, 0);
4985 hda_index
= drive_add(optarg
, HD_ALIAS
4986 ",cyls=%d,heads=%d,secs=%d%s",
4987 0, cyls
, heads
, secs
,
4988 translation
== BIOS_ATA_TRANSLATION_LBA
?
4990 translation
== BIOS_ATA_TRANSLATION_NONE
?
4991 ",trans=none" : "");
4993 case QEMU_OPTION_hdb
:
4994 case QEMU_OPTION_hdc
:
4995 case QEMU_OPTION_hdd
:
4996 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
4998 case QEMU_OPTION_drive
:
4999 drive_add(NULL
, "%s", optarg
);
5001 case QEMU_OPTION_mtdblock
:
5002 drive_add(optarg
, MTD_ALIAS
);
5004 case QEMU_OPTION_sd
:
5005 drive_add(optarg
, SD_ALIAS
);
5007 case QEMU_OPTION_pflash
:
5008 drive_add(optarg
, PFLASH_ALIAS
);
5010 case QEMU_OPTION_snapshot
:
5013 case QEMU_OPTION_hdachs
:
5017 cyls
= strtol(p
, (char **)&p
, 0);
5018 if (cyls
< 1 || cyls
> 16383)
5023 heads
= strtol(p
, (char **)&p
, 0);
5024 if (heads
< 1 || heads
> 16)
5029 secs
= strtol(p
, (char **)&p
, 0);
5030 if (secs
< 1 || secs
> 63)
5034 if (!strcmp(p
, "none"))
5035 translation
= BIOS_ATA_TRANSLATION_NONE
;
5036 else if (!strcmp(p
, "lba"))
5037 translation
= BIOS_ATA_TRANSLATION_LBA
;
5038 else if (!strcmp(p
, "auto"))
5039 translation
= BIOS_ATA_TRANSLATION_AUTO
;
5042 } else if (*p
!= '\0') {
5044 fprintf(stderr
, "qemu: invalid physical CHS format\n");
5047 if (hda_index
!= -1)
5048 snprintf(drives_opt
[hda_index
].opt
,
5049 sizeof(drives_opt
[hda_index
].opt
),
5050 HD_ALIAS
",cyls=%d,heads=%d,secs=%d%s",
5051 0, cyls
, heads
, secs
,
5052 translation
== BIOS_ATA_TRANSLATION_LBA
?
5054 translation
== BIOS_ATA_TRANSLATION_NONE
?
5055 ",trans=none" : "");
5058 case QEMU_OPTION_numa
:
5059 if (nb_numa_nodes
>= MAX_NODES
) {
5060 fprintf(stderr
, "qemu: too many NUMA nodes\n");
5065 case QEMU_OPTION_nographic
:
5066 display_type
= DT_NOGRAPHIC
;
5068 #ifdef CONFIG_CURSES
5069 case QEMU_OPTION_curses
:
5070 display_type
= DT_CURSES
;
5073 case QEMU_OPTION_portrait
:
5076 case QEMU_OPTION_kernel
:
5077 kernel_filename
= optarg
;
5079 case QEMU_OPTION_append
:
5080 kernel_cmdline
= optarg
;
5082 case QEMU_OPTION_cdrom
:
5083 drive_add(optarg
, CDROM_ALIAS
);
5085 case QEMU_OPTION_boot
:
5087 static const char * const params
[] = {
5090 char buf
[sizeof(boot_devices
)];
5093 if (!strchr(optarg
, '=')) {
5095 pstrcpy(buf
, sizeof(buf
), optarg
);
5096 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
5098 "qemu: unknown boot parameter '%s' in '%s'\n",
5104 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
5105 boot_devices_bitmap
= parse_bootdevices(buf
);
5106 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
5110 case QEMU_OPTION_fda
:
5111 case QEMU_OPTION_fdb
:
5112 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
5115 case QEMU_OPTION_no_fd_bootchk
:
5119 case QEMU_OPTION_net
:
5120 if (nb_net_clients
>= MAX_NET_CLIENTS
) {
5121 fprintf(stderr
, "qemu: too many network clients\n");
5124 net_clients
[nb_net_clients
] = optarg
;
5128 case QEMU_OPTION_tftp
:
5129 legacy_tftp_prefix
= optarg
;
5131 case QEMU_OPTION_bootp
:
5132 legacy_bootp_filename
= optarg
;
5135 case QEMU_OPTION_smb
:
5136 net_slirp_smb(optarg
);
5139 case QEMU_OPTION_redir
:
5140 net_slirp_redir(optarg
);
5143 case QEMU_OPTION_bt
:
5144 if (nb_bt_opts
>= MAX_BT_CMDLINE
) {
5145 fprintf(stderr
, "qemu: too many bluetooth options\n");
5148 bt_opts
[nb_bt_opts
++] = optarg
;
5151 case QEMU_OPTION_audio_help
:
5155 case QEMU_OPTION_soundhw
:
5156 select_soundhw (optarg
);
5162 case QEMU_OPTION_version
:
5166 case QEMU_OPTION_m
: {
5170 value
= strtoul(optarg
, &ptr
, 10);
5172 case 0: case 'M': case 'm':
5179 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5183 /* On 32-bit hosts, QEMU is limited by virtual address space */
5184 if (value
> (2047 << 20)
5185 #ifndef CONFIG_KQEMU
5186 && HOST_LONG_BITS
== 32
5189 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5192 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5193 fprintf(stderr
, "qemu: ram size too large\n");
5202 const CPULogItem
*item
;
5204 mask
= cpu_str_to_log_mask(optarg
);
5206 printf("Log items (comma separated):\n");
5207 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5208 printf("%-10s %s\n", item
->name
, item
->help
);
5216 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5218 case QEMU_OPTION_gdb
:
5219 gdbstub_dev
= optarg
;
5224 case QEMU_OPTION_bios
:
5227 case QEMU_OPTION_singlestep
:
5235 keyboard_layout
= optarg
;
5238 case QEMU_OPTION_localtime
:
5241 case QEMU_OPTION_vga
:
5242 select_vgahw (optarg
);
5244 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5250 w
= strtol(p
, (char **)&p
, 10);
5253 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5259 h
= strtol(p
, (char **)&p
, 10);
5264 depth
= strtol(p
, (char **)&p
, 10);
5265 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5266 depth
!= 24 && depth
!= 32)
5268 } else if (*p
== '\0') {
5269 depth
= graphic_depth
;
5276 graphic_depth
= depth
;
5280 case QEMU_OPTION_echr
:
5283 term_escape_char
= strtol(optarg
, &r
, 0);
5285 printf("Bad argument to echr\n");
5288 case QEMU_OPTION_monitor
:
5289 monitor_device
= optarg
;
5291 case QEMU_OPTION_serial
:
5292 if (serial_device_index
>= MAX_SERIAL_PORTS
) {
5293 fprintf(stderr
, "qemu: too many serial ports\n");
5296 serial_devices
[serial_device_index
] = optarg
;
5297 serial_device_index
++;
5299 case QEMU_OPTION_watchdog
:
5300 i
= select_watchdog(optarg
);
5302 exit (i
== 1 ? 1 : 0);
5304 case QEMU_OPTION_watchdog_action
:
5305 if (select_watchdog_action(optarg
) == -1) {
5306 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5310 case QEMU_OPTION_virtiocon
:
5311 if (virtio_console_index
>= MAX_VIRTIO_CONSOLES
) {
5312 fprintf(stderr
, "qemu: too many virtio consoles\n");
5315 virtio_consoles
[virtio_console_index
] = optarg
;
5316 virtio_console_index
++;
5318 case QEMU_OPTION_parallel
:
5319 if (parallel_device_index
>= MAX_PARALLEL_PORTS
) {
5320 fprintf(stderr
, "qemu: too many parallel ports\n");
5323 parallel_devices
[parallel_device_index
] = optarg
;
5324 parallel_device_index
++;
5326 case QEMU_OPTION_loadvm
:
5329 case QEMU_OPTION_full_screen
:
5333 case QEMU_OPTION_no_frame
:
5336 case QEMU_OPTION_alt_grab
:
5339 case QEMU_OPTION_no_quit
:
5342 case QEMU_OPTION_sdl
:
5343 display_type
= DT_SDL
;
5346 case QEMU_OPTION_pidfile
:
5350 case QEMU_OPTION_win2k_hack
:
5351 win2k_install_hack
= 1;
5353 case QEMU_OPTION_rtc_td_hack
:
5356 case QEMU_OPTION_acpitable
:
5357 if(acpi_table_add(optarg
) < 0) {
5358 fprintf(stderr
, "Wrong acpi table provided\n");
5362 case QEMU_OPTION_smbios
:
5363 if(smbios_entry_add(optarg
) < 0) {
5364 fprintf(stderr
, "Wrong smbios provided\n");
5370 case QEMU_OPTION_enable_kqemu
:
5373 case QEMU_OPTION_kernel_kqemu
:
5378 case QEMU_OPTION_enable_kvm
:
5385 case QEMU_OPTION_usb
:
5388 case QEMU_OPTION_usbdevice
:
5390 if (usb_devices_index
>= MAX_USB_CMDLINE
) {
5391 fprintf(stderr
, "Too many USB devices\n");
5394 usb_devices
[usb_devices_index
] = optarg
;
5395 usb_devices_index
++;
5397 case QEMU_OPTION_smp
:
5398 smp_cpus
= atoi(optarg
);
5400 fprintf(stderr
, "Invalid number of CPUs\n");
5404 case QEMU_OPTION_vnc
:
5405 display_type
= DT_VNC
;
5406 vnc_display
= optarg
;
5409 case QEMU_OPTION_no_acpi
:
5412 case QEMU_OPTION_no_hpet
:
5415 case QEMU_OPTION_balloon
:
5416 if (balloon_parse(optarg
) < 0) {
5417 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5422 case QEMU_OPTION_no_reboot
:
5425 case QEMU_OPTION_no_shutdown
:
5428 case QEMU_OPTION_show_cursor
:
5431 case QEMU_OPTION_uuid
:
5432 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5433 fprintf(stderr
, "Fail to parse UUID string."
5434 " Wrong format.\n");
5439 case QEMU_OPTION_daemonize
:
5443 case QEMU_OPTION_option_rom
:
5444 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5445 fprintf(stderr
, "Too many option ROMs\n");
5448 option_rom
[nb_option_roms
] = optarg
;
5451 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5452 case QEMU_OPTION_semihosting
:
5453 semihosting_enabled
= 1;
5456 case QEMU_OPTION_name
:
5457 qemu_name
= qemu_strdup(optarg
);
5459 char *p
= strchr(qemu_name
, ',');
5462 if (strncmp(p
, "process=", 8)) {
5463 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5471 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5472 case QEMU_OPTION_prom_env
:
5473 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5474 fprintf(stderr
, "Too many prom variables\n");
5477 prom_envs
[nb_prom_envs
] = optarg
;
5482 case QEMU_OPTION_old_param
:
5486 case QEMU_OPTION_clock
:
5487 configure_alarms(optarg
);
5489 case QEMU_OPTION_startdate
:
5492 time_t rtc_start_date
;
5493 if (!strcmp(optarg
, "now")) {
5494 rtc_date_offset
= -1;
5496 if (sscanf(optarg
, "%d-%d-%dT%d:%d:%d",
5504 } else if (sscanf(optarg
, "%d-%d-%d",
5507 &tm
.tm_mday
) == 3) {
5516 rtc_start_date
= mktimegm(&tm
);
5517 if (rtc_start_date
== -1) {
5519 fprintf(stderr
, "Invalid date format. Valid format are:\n"
5520 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5523 rtc_date_offset
= time(NULL
) - rtc_start_date
;
5527 case QEMU_OPTION_tb_size
:
5528 tb_size
= strtol(optarg
, NULL
, 0);
5532 case QEMU_OPTION_icount
:
5534 if (strcmp(optarg
, "auto") == 0) {
5535 icount_time_shift
= -1;
5537 icount_time_shift
= strtol(optarg
, NULL
, 0);
5540 case QEMU_OPTION_incoming
:
5544 case QEMU_OPTION_chroot
:
5545 chroot_dir
= optarg
;
5547 case QEMU_OPTION_runas
:
5552 case QEMU_OPTION_xen_domid
:
5553 xen_domid
= atoi(optarg
);
5555 case QEMU_OPTION_xen_create
:
5556 xen_mode
= XEN_CREATE
;
5558 case QEMU_OPTION_xen_attach
:
5559 xen_mode
= XEN_ATTACH
;
5566 /* If no data_dir is specified then try to find it relative to the
5569 data_dir
= find_datadir(argv
[0]);
5571 /* If all else fails use the install patch specified when building. */
5573 data_dir
= CONFIG_QEMU_SHAREDIR
;
5576 #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU)
5577 if (kvm_allowed
&& kqemu_allowed
) {
5579 "You can not enable both KVM and kqemu at the same time\n");
5584 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5585 if (smp_cpus
> machine
->max_cpus
) {
5586 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5587 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5592 if (display_type
== DT_NOGRAPHIC
) {
5593 if (serial_device_index
== 0)
5594 serial_devices
[0] = "stdio";
5595 if (parallel_device_index
== 0)
5596 parallel_devices
[0] = "null";
5597 if (strncmp(monitor_device
, "vc", 2) == 0)
5598 monitor_device
= "stdio";
5605 if (pipe(fds
) == -1)
5616 len
= read(fds
[0], &status
, 1);
5617 if (len
== -1 && (errno
== EINTR
))
5622 else if (status
== 1) {
5623 fprintf(stderr
, "Could not acquire pidfile\n");
5640 signal(SIGTSTP
, SIG_IGN
);
5641 signal(SIGTTOU
, SIG_IGN
);
5642 signal(SIGTTIN
, SIG_IGN
);
5645 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5648 write(fds
[1], &status
, 1);
5650 fprintf(stderr
, "Could not acquire pid file\n");
5659 if (qemu_init_main_loop()) {
5660 fprintf(stderr
, "qemu_init_main_loop failed\n");
5663 linux_boot
= (kernel_filename
!= NULL
);
5665 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5666 fprintf(stderr
, "-append only allowed with -kernel option\n");
5670 if (!linux_boot
&& initrd_filename
!= NULL
) {
5671 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5675 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5678 if (init_timer_alarm() < 0) {
5679 fprintf(stderr
, "could not initialize alarm timer\n");
5682 if (use_icount
&& icount_time_shift
< 0) {
5684 /* 125MIPS seems a reasonable initial guess at the guest speed.
5685 It will be corrected fairly quickly anyway. */
5686 icount_time_shift
= 3;
5687 init_icount_adjust();
5694 /* init network clients */
5695 if (nb_net_clients
== 0) {
5696 /* if no clients, we use a default config */
5697 net_clients
[nb_net_clients
++] = "nic";
5699 net_clients
[nb_net_clients
++] = "user";
5703 for(i
= 0;i
< nb_net_clients
; i
++) {
5704 if (net_client_parse(net_clients
[i
]) < 0)
5708 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5709 net_set_boot_mask(net_boot
);
5713 /* init the bluetooth world */
5714 for (i
= 0; i
< nb_bt_opts
; i
++)
5715 if (bt_parse(bt_opts
[i
]))
5718 /* init the memory */
5720 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5723 /* FIXME: This is a nasty hack because kqemu can't cope with dynamic
5724 guest ram allocation. It needs to go away. */
5725 if (kqemu_allowed
) {
5726 kqemu_phys_ram_size
= ram_size
+ 8 * 1024 * 1024 + 4 * 1024 * 1024;
5727 kqemu_phys_ram_base
= qemu_vmalloc(kqemu_phys_ram_size
);
5728 if (!kqemu_phys_ram_base
) {
5729 fprintf(stderr
, "Could not allocate physical memory\n");
5735 /* init the dynamic translator */
5736 cpu_exec_init_all(tb_size
* 1024 * 1024);
5740 /* we always create the cdrom drive, even if no disk is there */
5742 if (nb_drives_opt
< MAX_DRIVES
)
5743 drive_add(NULL
, CDROM_ALIAS
);
5745 /* we always create at least one floppy */
5747 if (nb_drives_opt
< MAX_DRIVES
)
5748 drive_add(NULL
, FD_ALIAS
, 0);
5750 /* we always create one sd slot, even if no card is in it */
5752 if (nb_drives_opt
< MAX_DRIVES
)
5753 drive_add(NULL
, SD_ALIAS
);
5755 /* open the virtual block devices */
5757 for(i
= 0; i
< nb_drives_opt
; i
++)
5758 if (drive_init(&drives_opt
[i
], snapshot
, machine
) == -1)
5761 register_savevm("timer", 0, 2, timer_save
, timer_load
, NULL
);
5762 register_savevm_live("ram", 0, 3, ram_save_live
, NULL
, ram_load
, NULL
);
5765 /* must be after terminal init, SDL library changes signal handlers */
5769 /* Maintain compatibility with multiple stdio monitors */
5770 if (!strcmp(monitor_device
,"stdio")) {
5771 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5772 const char *devname
= serial_devices
[i
];
5773 if (devname
&& !strcmp(devname
,"mon:stdio")) {
5774 monitor_device
= NULL
;
5776 } else if (devname
&& !strcmp(devname
,"stdio")) {
5777 monitor_device
= NULL
;
5778 serial_devices
[i
] = "mon:stdio";
5784 if (nb_numa_nodes
> 0) {
5787 if (nb_numa_nodes
> smp_cpus
) {
5788 nb_numa_nodes
= smp_cpus
;
5791 /* If no memory size if given for any node, assume the default case
5792 * and distribute the available memory equally across all nodes
5794 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5795 if (node_mem
[i
] != 0)
5798 if (i
== nb_numa_nodes
) {
5799 uint64_t usedmem
= 0;
5801 /* On Linux, the each node's border has to be 8MB aligned,
5802 * the final node gets the rest.
5804 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5805 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5806 usedmem
+= node_mem
[i
];
5808 node_mem
[i
] = ram_size
- usedmem
;
5811 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5812 if (node_cpumask
[i
] != 0)
5815 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5816 * must cope with this anyway, because there are BIOSes out there in
5817 * real machines which also use this scheme.
5819 if (i
== nb_numa_nodes
) {
5820 for (i
= 0; i
< smp_cpus
; i
++) {
5821 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5826 if (kvm_enabled()) {
5829 ret
= kvm_init(smp_cpus
);
5831 fprintf(stderr
, "failed to initialize KVM\n");
5836 if (monitor_device
) {
5837 monitor_hd
= qemu_chr_open("monitor", monitor_device
, NULL
);
5839 fprintf(stderr
, "qemu: could not open monitor device '%s'\n", monitor_device
);
5844 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5845 const char *devname
= serial_devices
[i
];
5846 if (devname
&& strcmp(devname
, "none")) {
5848 snprintf(label
, sizeof(label
), "serial%d", i
);
5849 serial_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5850 if (!serial_hds
[i
]) {
5851 fprintf(stderr
, "qemu: could not open serial device '%s'\n",
5858 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5859 const char *devname
= parallel_devices
[i
];
5860 if (devname
&& strcmp(devname
, "none")) {
5862 snprintf(label
, sizeof(label
), "parallel%d", i
);
5863 parallel_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5864 if (!parallel_hds
[i
]) {
5865 fprintf(stderr
, "qemu: could not open parallel device '%s'\n",
5872 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5873 const char *devname
= virtio_consoles
[i
];
5874 if (devname
&& strcmp(devname
, "none")) {
5876 snprintf(label
, sizeof(label
), "virtcon%d", i
);
5877 virtcon_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5878 if (!virtcon_hds
[i
]) {
5879 fprintf(stderr
, "qemu: could not open virtio console '%s'\n",
5886 module_call_init(MODULE_INIT_DEVICE
);
5888 machine
->init(ram_size
, boot_devices
,
5889 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5892 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5893 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5894 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5900 current_machine
= machine
;
5902 /* init USB devices */
5904 for(i
= 0; i
< usb_devices_index
; i
++) {
5905 if (usb_device_add(usb_devices
[i
], 0) < 0) {
5906 fprintf(stderr
, "Warning: could not add USB device %s\n",
5913 dumb_display_init();
5914 /* just use the first displaystate for the moment */
5917 if (display_type
== DT_DEFAULT
) {
5918 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5919 display_type
= DT_SDL
;
5921 display_type
= DT_VNC
;
5922 vnc_display
= "localhost:0,to=99";
5928 switch (display_type
) {
5931 #if defined(CONFIG_CURSES)
5933 curses_display_init(ds
, full_screen
);
5936 #if defined(CONFIG_SDL)
5938 sdl_display_init(ds
, full_screen
, no_frame
);
5940 #elif defined(CONFIG_COCOA)
5942 cocoa_display_init(ds
, full_screen
);
5946 vnc_display_init(ds
);
5947 if (vnc_display_open(ds
, vnc_display
) < 0)
5950 if (show_vnc_port
) {
5951 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
5959 dcl
= ds
->listeners
;
5960 while (dcl
!= NULL
) {
5961 if (dcl
->dpy_refresh
!= NULL
) {
5962 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
5963 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
5968 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
5969 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
5970 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
5973 text_consoles_set_display(display_state
);
5974 qemu_chr_initial_reset();
5976 if (monitor_device
&& monitor_hd
)
5977 monitor_init(monitor_hd
, MONITOR_USE_READLINE
| MONITOR_IS_DEFAULT
);
5979 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5980 const char *devname
= serial_devices
[i
];
5981 if (devname
&& strcmp(devname
, "none")) {
5982 if (strstart(devname
, "vc", 0))
5983 qemu_chr_printf(serial_hds
[i
], "serial%d console\r\n", i
);
5987 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5988 const char *devname
= parallel_devices
[i
];
5989 if (devname
&& strcmp(devname
, "none")) {
5990 if (strstart(devname
, "vc", 0))
5991 qemu_chr_printf(parallel_hds
[i
], "parallel%d console\r\n", i
);
5995 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5996 const char *devname
= virtio_consoles
[i
];
5997 if (virtcon_hds
[i
] && devname
) {
5998 if (strstart(devname
, "vc", 0))
5999 qemu_chr_printf(virtcon_hds
[i
], "virtio console%d\r\n", i
);
6003 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
6004 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
6010 do_loadvm(cur_mon
, loadvm
);
6013 autostart
= 0; /* fixme how to deal with -daemonize */
6014 qemu_start_incoming_migration(incoming
);
6026 len
= write(fds
[1], &status
, 1);
6027 if (len
== -1 && (errno
== EINTR
))
6034 TFR(fd
= open("/dev/null", O_RDWR
));
6040 pwd
= getpwnam(run_as
);
6042 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
6048 if (chroot(chroot_dir
) < 0) {
6049 fprintf(stderr
, "chroot failed\n");
6056 if (setgid(pwd
->pw_gid
) < 0) {
6057 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
6060 if (setuid(pwd
->pw_uid
) < 0) {
6061 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
6064 if (setuid(0) != -1) {
6065 fprintf(stderr
, "Dropping privileges failed\n");