4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
38 #include <sys/times.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
47 #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>
95 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
96 discussion about Solaris header problems */
97 extern int madvise(caddr_t
, size_t, int);
102 #if defined(__OpenBSD__)
106 #if defined(CONFIG_VDE)
107 #include <libvdeplug.h>
112 #include <mmsystem.h>
116 #if defined(__APPLE__) || defined(main)
118 int qemu_main(int argc
, char **argv
, char **envp
);
119 int main(int argc
, char **argv
)
121 return qemu_main(argc
, argv
, NULL
);
124 #define main qemu_main
126 #endif /* CONFIG_SDL */
130 #define main qemu_main
131 #endif /* CONFIG_COCOA */
134 #include "hw/boards.h"
136 #include "hw/pcmcia.h"
138 #include "hw/audiodev.h"
142 #include "hw/watchdog.h"
143 #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"
162 #include "qemu-config.h"
166 #include "exec-all.h"
168 #include "qemu_socket.h"
170 #include "slirp/libslirp.h"
172 #include "qemu-queue.h"
175 //#define DEBUG_SLIRP
177 #define DEFAULT_RAM_SIZE 128
179 /* Maximum number of monitor devices */
180 #define MAX_MONITOR_DEVICES 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 struct drivelist drives
= QTAILQ_HEAD_INITIALIZER(drives
);
187 struct driveoptlist driveopts
= QTAILQ_HEAD_INITIALIZER(driveopts
);
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
;
194 NICInfo nd_table
[MAX_NICS
];
197 static int rtc_utc
= 1;
198 static int rtc_date_offset
= -1; /* -1 means no change */
199 int vga_interface_type
= VGA_CIRRUS
;
201 int graphic_width
= 1024;
202 int graphic_height
= 768;
203 int graphic_depth
= 8;
205 int graphic_width
= 800;
206 int graphic_height
= 600;
207 int graphic_depth
= 15;
209 static int full_screen
= 0;
211 static int no_frame
= 0;
214 CharDriverState
*serial_hds
[MAX_SERIAL_PORTS
];
215 CharDriverState
*parallel_hds
[MAX_PARALLEL_PORTS
];
216 CharDriverState
*virtcon_hds
[MAX_VIRTIO_CONSOLES
];
218 int win2k_install_hack
= 0;
227 const char *vnc_display
;
228 int acpi_enabled
= 1;
234 int graphic_rotate
= 0;
235 uint8_t irq0override
= 1;
239 const char *watchdog
;
240 const char *option_rom
[MAX_OPTION_ROMS
];
242 int semihosting_enabled
= 0;
246 const char *qemu_name
;
248 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
249 unsigned int nb_prom_envs
= 0;
250 const char *prom_envs
[MAX_PROM_ENVS
];
255 uint64_t node_mem
[MAX_NODES
];
256 uint64_t node_cpumask
[MAX_NODES
];
258 static CPUState
*cur_cpu
;
259 static CPUState
*next_cpu
;
260 static int timer_alarm_pending
= 1;
261 /* Conversion factor from emulated instructions to virtual clock ticks. */
262 static int icount_time_shift
;
263 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
264 #define MAX_ICOUNT_SHIFT 10
265 /* Compensate for varying guest execution speed. */
266 static int64_t qemu_icount_bias
;
267 static QEMUTimer
*icount_rt_timer
;
268 static QEMUTimer
*icount_vm_timer
;
269 static QEMUTimer
*nographic_timer
;
271 uint8_t qemu_uuid
[16];
273 static QEMUBootSetHandler
*boot_set_handler
;
274 static void *boot_set_opaque
;
276 /***********************************************************/
277 /* x86 ISA bus support */
279 target_phys_addr_t isa_mem_base
= 0;
282 /***********************************************************/
283 void hw_error(const char *fmt
, ...)
289 fprintf(stderr
, "qemu: hardware error: ");
290 vfprintf(stderr
, fmt
, ap
);
291 fprintf(stderr
, "\n");
292 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
293 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
295 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
297 cpu_dump_state(env
, stderr
, fprintf
, 0);
304 static void set_proc_name(const char *s
)
306 #if defined(__linux__) && defined(PR_SET_NAME)
310 name
[sizeof(name
) - 1] = 0;
311 strncpy(name
, s
, sizeof(name
));
312 /* Could rewrite argv[0] too, but that's a bit more complicated.
313 This simple way is enough for `top'. */
314 prctl(PR_SET_NAME
, name
);
321 static QEMUBalloonEvent
*qemu_balloon_event
;
322 void *qemu_balloon_event_opaque
;
324 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
326 qemu_balloon_event
= func
;
327 qemu_balloon_event_opaque
= opaque
;
330 void qemu_balloon(ram_addr_t target
)
332 if (qemu_balloon_event
)
333 qemu_balloon_event(qemu_balloon_event_opaque
, target
);
336 ram_addr_t
qemu_balloon_status(void)
338 if (qemu_balloon_event
)
339 return qemu_balloon_event(qemu_balloon_event_opaque
, 0);
343 /***********************************************************/
346 static QEMUPutKBDEvent
*qemu_put_kbd_event
;
347 static void *qemu_put_kbd_event_opaque
;
348 static QEMUPutMouseEntry
*qemu_put_mouse_event_head
;
349 static QEMUPutMouseEntry
*qemu_put_mouse_event_current
;
351 void qemu_add_kbd_event_handler(QEMUPutKBDEvent
*func
, void *opaque
)
353 qemu_put_kbd_event_opaque
= opaque
;
354 qemu_put_kbd_event
= func
;
357 QEMUPutMouseEntry
*qemu_add_mouse_event_handler(QEMUPutMouseEvent
*func
,
358 void *opaque
, int absolute
,
361 QEMUPutMouseEntry
*s
, *cursor
;
363 s
= qemu_mallocz(sizeof(QEMUPutMouseEntry
));
365 s
->qemu_put_mouse_event
= func
;
366 s
->qemu_put_mouse_event_opaque
= opaque
;
367 s
->qemu_put_mouse_event_absolute
= absolute
;
368 s
->qemu_put_mouse_event_name
= qemu_strdup(name
);
371 if (!qemu_put_mouse_event_head
) {
372 qemu_put_mouse_event_head
= qemu_put_mouse_event_current
= s
;
376 cursor
= qemu_put_mouse_event_head
;
377 while (cursor
->next
!= NULL
)
378 cursor
= cursor
->next
;
381 qemu_put_mouse_event_current
= s
;
386 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry
*entry
)
388 QEMUPutMouseEntry
*prev
= NULL
, *cursor
;
390 if (!qemu_put_mouse_event_head
|| entry
== NULL
)
393 cursor
= qemu_put_mouse_event_head
;
394 while (cursor
!= NULL
&& cursor
!= entry
) {
396 cursor
= cursor
->next
;
399 if (cursor
== NULL
) // does not exist or list empty
401 else if (prev
== NULL
) { // entry is head
402 qemu_put_mouse_event_head
= cursor
->next
;
403 if (qemu_put_mouse_event_current
== entry
)
404 qemu_put_mouse_event_current
= cursor
->next
;
405 qemu_free(entry
->qemu_put_mouse_event_name
);
410 prev
->next
= entry
->next
;
412 if (qemu_put_mouse_event_current
== entry
)
413 qemu_put_mouse_event_current
= prev
;
415 qemu_free(entry
->qemu_put_mouse_event_name
);
419 void kbd_put_keycode(int keycode
)
421 if (qemu_put_kbd_event
) {
422 qemu_put_kbd_event(qemu_put_kbd_event_opaque
, keycode
);
426 void kbd_mouse_event(int dx
, int dy
, int dz
, int buttons_state
)
428 QEMUPutMouseEvent
*mouse_event
;
429 void *mouse_event_opaque
;
432 if (!qemu_put_mouse_event_current
) {
437 qemu_put_mouse_event_current
->qemu_put_mouse_event
;
439 qemu_put_mouse_event_current
->qemu_put_mouse_event_opaque
;
442 if (graphic_rotate
) {
443 if (qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
)
446 width
= graphic_width
- 1;
447 mouse_event(mouse_event_opaque
,
448 width
- dy
, dx
, dz
, buttons_state
);
450 mouse_event(mouse_event_opaque
,
451 dx
, dy
, dz
, buttons_state
);
455 int kbd_mouse_is_absolute(void)
457 if (!qemu_put_mouse_event_current
)
460 return qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
;
463 void do_info_mice(Monitor
*mon
)
465 QEMUPutMouseEntry
*cursor
;
468 if (!qemu_put_mouse_event_head
) {
469 monitor_printf(mon
, "No mouse devices connected\n");
473 monitor_printf(mon
, "Mouse devices available:\n");
474 cursor
= qemu_put_mouse_event_head
;
475 while (cursor
!= NULL
) {
476 monitor_printf(mon
, "%c Mouse #%d: %s\n",
477 (cursor
== qemu_put_mouse_event_current
? '*' : ' '),
478 index
, cursor
->qemu_put_mouse_event_name
);
480 cursor
= cursor
->next
;
484 void do_mouse_set(Monitor
*mon
, const QDict
*qdict
)
486 QEMUPutMouseEntry
*cursor
;
488 int index
= qdict_get_int(qdict
, "index");
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 HOST_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 */
536 static int64_t clock_freq
;
538 static void init_get_clock(void)
542 ret
= QueryPerformanceFrequency(&freq
);
544 fprintf(stderr
, "Could not calibrate ticks\n");
547 clock_freq
= freq
.QuadPart
;
550 static int64_t get_clock(void)
553 QueryPerformanceCounter(&ti
);
554 return muldiv64(ti
.QuadPart
, get_ticks_per_sec(), clock_freq
);
559 static int use_rt_clock
;
561 static void init_get_clock(void)
564 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
565 || defined(__DragonFly__)
568 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0) {
575 static int64_t get_clock(void)
577 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
578 || defined(__DragonFly__)
581 clock_gettime(CLOCK_MONOTONIC
, &ts
);
582 return ts
.tv_sec
* 1000000000LL + ts
.tv_nsec
;
586 /* XXX: using gettimeofday leads to problems if the date
587 changes, so it should be avoided. */
589 gettimeofday(&tv
, NULL
);
590 return tv
.tv_sec
* 1000000000LL + (tv
.tv_usec
* 1000);
595 /* Return the virtual CPU time, based on the instruction counter. */
596 static int64_t cpu_get_icount(void)
599 CPUState
*env
= cpu_single_env
;;
600 icount
= qemu_icount
;
603 fprintf(stderr
, "Bad clock read\n");
604 icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
606 return qemu_icount_bias
+ (icount
<< icount_time_shift
);
609 /***********************************************************/
610 /* guest cycle counter */
612 typedef struct TimersState
{
613 int64_t cpu_ticks_prev
;
614 int64_t cpu_ticks_offset
;
615 int64_t cpu_clock_offset
;
616 int32_t cpu_ticks_enabled
;
620 TimersState timers_state
;
622 /* return the host CPU cycle counter and handle stop/restart */
623 int64_t cpu_get_ticks(void)
626 return cpu_get_icount();
628 if (!timers_state
.cpu_ticks_enabled
) {
629 return timers_state
.cpu_ticks_offset
;
632 ticks
= cpu_get_real_ticks();
633 if (timers_state
.cpu_ticks_prev
> ticks
) {
634 /* Note: non increasing ticks may happen if the host uses
636 timers_state
.cpu_ticks_offset
+= timers_state
.cpu_ticks_prev
- ticks
;
638 timers_state
.cpu_ticks_prev
= ticks
;
639 return ticks
+ timers_state
.cpu_ticks_offset
;
643 /* return the host CPU monotonic timer and handle stop/restart */
644 static int64_t cpu_get_clock(void)
647 if (!timers_state
.cpu_ticks_enabled
) {
648 return timers_state
.cpu_clock_offset
;
651 return ti
+ timers_state
.cpu_clock_offset
;
655 /* enable cpu_get_ticks() */
656 void cpu_enable_ticks(void)
658 if (!timers_state
.cpu_ticks_enabled
) {
659 timers_state
.cpu_ticks_offset
-= cpu_get_real_ticks();
660 timers_state
.cpu_clock_offset
-= get_clock();
661 timers_state
.cpu_ticks_enabled
= 1;
665 /* disable cpu_get_ticks() : the clock is stopped. You must not call
666 cpu_get_ticks() after that. */
667 void cpu_disable_ticks(void)
669 if (timers_state
.cpu_ticks_enabled
) {
670 timers_state
.cpu_ticks_offset
= cpu_get_ticks();
671 timers_state
.cpu_clock_offset
= cpu_get_clock();
672 timers_state
.cpu_ticks_enabled
= 0;
676 /***********************************************************/
679 #define QEMU_TIMER_REALTIME 0
680 #define QEMU_TIMER_VIRTUAL 1
684 /* XXX: add frequency */
692 struct QEMUTimer
*next
;
695 struct qemu_alarm_timer
{
699 int (*start
)(struct qemu_alarm_timer
*t
);
700 void (*stop
)(struct qemu_alarm_timer
*t
);
701 void (*rearm
)(struct qemu_alarm_timer
*t
);
705 #define ALARM_FLAG_DYNTICKS 0x1
706 #define ALARM_FLAG_EXPIRED 0x2
708 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
710 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
713 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
715 if (!alarm_has_dynticks(t
))
721 /* TODO: MIN_TIMER_REARM_US should be optimized */
722 #define MIN_TIMER_REARM_US 250
724 static struct qemu_alarm_timer
*alarm_timer
;
728 struct qemu_alarm_win32
{
731 } alarm_win32_data
= {0, -1};
733 static int win32_start_timer(struct qemu_alarm_timer
*t
);
734 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
735 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
739 static int unix_start_timer(struct qemu_alarm_timer
*t
);
740 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
744 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
745 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
746 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
748 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
749 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
751 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
752 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
754 #endif /* __linux__ */
758 /* Correlation between real and virtual time is always going to be
759 fairly approximate, so ignore small variation.
760 When the guest is idle real and virtual time will be aligned in
762 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
764 static void icount_adjust(void)
769 static int64_t last_delta
;
770 /* If the VM is not running, then do nothing. */
774 cur_time
= cpu_get_clock();
775 cur_icount
= qemu_get_clock(vm_clock
);
776 delta
= cur_icount
- cur_time
;
777 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
779 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
780 && icount_time_shift
> 0) {
781 /* The guest is getting too far ahead. Slow time down. */
785 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
786 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
787 /* The guest is getting too far behind. Speed time up. */
791 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
794 static void icount_adjust_rt(void * opaque
)
796 qemu_mod_timer(icount_rt_timer
,
797 qemu_get_clock(rt_clock
) + 1000);
801 static void icount_adjust_vm(void * opaque
)
803 qemu_mod_timer(icount_vm_timer
,
804 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
808 static void init_icount_adjust(void)
810 /* Have both realtime and virtual time triggers for speed adjustment.
811 The realtime trigger catches emulated time passing too slowly,
812 the virtual time trigger catches emulated time passing too fast.
813 Realtime triggers occur even when idle, so use them less frequently
815 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
816 qemu_mod_timer(icount_rt_timer
,
817 qemu_get_clock(rt_clock
) + 1000);
818 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
819 qemu_mod_timer(icount_vm_timer
,
820 qemu_get_clock(vm_clock
) + get_ticks_per_sec() / 10);
823 static struct qemu_alarm_timer alarm_timers
[] = {
826 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
827 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
828 /* HPET - if available - is preferred */
829 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
830 /* ...otherwise try RTC */
831 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
833 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
835 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
836 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
837 {"win32", 0, win32_start_timer
,
838 win32_stop_timer
, NULL
, &alarm_win32_data
},
843 static void show_available_alarms(void)
847 printf("Available alarm timers, in order of precedence:\n");
848 for (i
= 0; alarm_timers
[i
].name
; i
++)
849 printf("%s\n", alarm_timers
[i
].name
);
852 static void configure_alarms(char const *opt
)
856 int count
= ARRAY_SIZE(alarm_timers
) - 1;
859 struct qemu_alarm_timer tmp
;
861 if (!strcmp(opt
, "?")) {
862 show_available_alarms();
866 arg
= qemu_strdup(opt
);
868 /* Reorder the array */
869 name
= strtok(arg
, ",");
871 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
872 if (!strcmp(alarm_timers
[i
].name
, name
))
877 fprintf(stderr
, "Unknown clock %s\n", name
);
886 tmp
= alarm_timers
[i
];
887 alarm_timers
[i
] = alarm_timers
[cur
];
888 alarm_timers
[cur
] = tmp
;
892 name
= strtok(NULL
, ",");
898 /* Disable remaining timers */
899 for (i
= cur
; i
< count
; i
++)
900 alarm_timers
[i
].name
= NULL
;
902 show_available_alarms();
910 static QEMUTimer
*active_timers
[2];
912 static QEMUClock
*qemu_new_clock(int type
)
915 clock
= qemu_mallocz(sizeof(QEMUClock
));
920 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
924 ts
= qemu_mallocz(sizeof(QEMUTimer
));
931 void qemu_free_timer(QEMUTimer
*ts
)
936 /* stop a timer, but do not dealloc it */
937 void qemu_del_timer(QEMUTimer
*ts
)
941 /* NOTE: this code must be signal safe because
942 qemu_timer_expired() can be called from a signal. */
943 pt
= &active_timers
[ts
->clock
->type
];
956 /* modify the current timer so that it will be fired when current_time
957 >= expire_time. The corresponding callback will be called. */
958 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
964 /* add the timer in the sorted list */
965 /* NOTE: this code must be signal safe because
966 qemu_timer_expired() can be called from a signal. */
967 pt
= &active_timers
[ts
->clock
->type
];
972 if (t
->expire_time
> expire_time
)
976 ts
->expire_time
= expire_time
;
980 /* Rearm if necessary */
981 if (pt
== &active_timers
[ts
->clock
->type
]) {
982 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
983 qemu_rearm_alarm_timer(alarm_timer
);
985 /* Interrupt execution to force deadline recalculation. */
991 int qemu_timer_pending(QEMUTimer
*ts
)
994 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
1001 int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
1005 return (timer_head
->expire_time
<= current_time
);
1008 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
1014 if (!ts
|| ts
->expire_time
> current_time
)
1016 /* remove timer from the list before calling the callback */
1017 *ptimer_head
= ts
->next
;
1020 /* run the callback (the timer list can be modified) */
1025 int64_t qemu_get_clock(QEMUClock
*clock
)
1027 switch(clock
->type
) {
1028 case QEMU_TIMER_REALTIME
:
1029 return get_clock() / 1000000;
1031 case QEMU_TIMER_VIRTUAL
:
1033 return cpu_get_icount();
1035 return cpu_get_clock();
1040 static void init_timers(void)
1043 rt_clock
= qemu_new_clock(QEMU_TIMER_REALTIME
);
1044 vm_clock
= qemu_new_clock(QEMU_TIMER_VIRTUAL
);
1048 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1050 uint64_t expire_time
;
1052 if (qemu_timer_pending(ts
)) {
1053 expire_time
= ts
->expire_time
;
1057 qemu_put_be64(f
, expire_time
);
1060 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1062 uint64_t expire_time
;
1064 expire_time
= qemu_get_be64(f
);
1065 if (expire_time
!= -1) {
1066 qemu_mod_timer(ts
, expire_time
);
1072 static const VMStateDescription vmstate_timers
= {
1075 .minimum_version_id
= 1,
1076 .minimum_version_id_old
= 1,
1077 .fields
= (VMStateField
[]) {
1078 VMSTATE_INT64(cpu_ticks_offset
, TimersState
),
1079 VMSTATE_INT64(dummy
, TimersState
),
1080 VMSTATE_INT64_V(cpu_clock_offset
, TimersState
, 2),
1081 VMSTATE_END_OF_LIST()
1085 static void qemu_event_increment(void);
1088 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
1089 DWORD_PTR dwUser
, DWORD_PTR dw1
,
1092 static void host_alarm_handler(int host_signum
)
1096 #define DISP_FREQ 1000
1098 static int64_t delta_min
= INT64_MAX
;
1099 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
1101 ti
= qemu_get_clock(vm_clock
);
1102 if (last_clock
!= 0) {
1103 delta
= ti
- last_clock
;
1104 if (delta
< delta_min
)
1106 if (delta
> delta_max
)
1109 if (++count
== DISP_FREQ
) {
1110 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1111 muldiv64(delta_min
, 1000000, get_ticks_per_sec()),
1112 muldiv64(delta_max
, 1000000, get_ticks_per_sec()),
1113 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, get_ticks_per_sec()),
1114 (double)get_ticks_per_sec() / ((double)delta_cum
/ DISP_FREQ
));
1116 delta_min
= INT64_MAX
;
1124 if (alarm_has_dynticks(alarm_timer
) ||
1126 qemu_timer_expired(active_timers
[QEMU_TIMER_VIRTUAL
],
1127 qemu_get_clock(vm_clock
))) ||
1128 qemu_timer_expired(active_timers
[QEMU_TIMER_REALTIME
],
1129 qemu_get_clock(rt_clock
))) {
1130 qemu_event_increment();
1131 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1133 #ifndef CONFIG_IOTHREAD
1135 /* stop the currently executing cpu because a timer occured */
1139 timer_alarm_pending
= 1;
1140 qemu_notify_event();
1144 static int64_t qemu_next_deadline(void)
1148 if (active_timers
[QEMU_TIMER_VIRTUAL
]) {
1149 delta
= active_timers
[QEMU_TIMER_VIRTUAL
]->expire_time
-
1150 qemu_get_clock(vm_clock
);
1152 /* To avoid problems with overflow limit this to 2^32. */
1162 #if defined(__linux__) || defined(_WIN32)
1163 static uint64_t qemu_next_deadline_dyntick(void)
1171 delta
= (qemu_next_deadline() + 999) / 1000;
1173 if (active_timers
[QEMU_TIMER_REALTIME
]) {
1174 rtdelta
= (active_timers
[QEMU_TIMER_REALTIME
]->expire_time
-
1175 qemu_get_clock(rt_clock
))*1000;
1176 if (rtdelta
< delta
)
1180 if (delta
< MIN_TIMER_REARM_US
)
1181 delta
= MIN_TIMER_REARM_US
;
1189 /* Sets a specific flag */
1190 static int fcntl_setfl(int fd
, int flag
)
1194 flags
= fcntl(fd
, F_GETFL
);
1198 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1204 #if defined(__linux__)
1206 #define RTC_FREQ 1024
1208 static void enable_sigio_timer(int fd
)
1210 struct sigaction act
;
1213 sigfillset(&act
.sa_mask
);
1215 act
.sa_handler
= host_alarm_handler
;
1217 sigaction(SIGIO
, &act
, NULL
);
1218 fcntl_setfl(fd
, O_ASYNC
);
1219 fcntl(fd
, F_SETOWN
, getpid());
1222 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1224 struct hpet_info info
;
1227 fd
= open("/dev/hpet", O_RDONLY
);
1232 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1234 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1235 "error, but for better emulation accuracy type:\n"
1236 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1240 /* Check capabilities */
1241 r
= ioctl(fd
, HPET_INFO
, &info
);
1245 /* Enable periodic mode */
1246 r
= ioctl(fd
, HPET_EPI
, 0);
1247 if (info
.hi_flags
&& (r
< 0))
1250 /* Enable interrupt */
1251 r
= ioctl(fd
, HPET_IE_ON
, 0);
1255 enable_sigio_timer(fd
);
1256 t
->priv
= (void *)(long)fd
;
1264 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1266 int fd
= (long)t
->priv
;
1271 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1274 unsigned long current_rtc_freq
= 0;
1276 TFR(rtc_fd
= open("/dev/rtc", O_RDONLY
));
1279 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1280 if (current_rtc_freq
!= RTC_FREQ
&&
1281 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1282 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1283 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1284 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1287 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1293 enable_sigio_timer(rtc_fd
);
1295 t
->priv
= (void *)(long)rtc_fd
;
1300 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1302 int rtc_fd
= (long)t
->priv
;
1307 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1311 struct sigaction act
;
1313 sigfillset(&act
.sa_mask
);
1315 act
.sa_handler
= host_alarm_handler
;
1317 sigaction(SIGALRM
, &act
, NULL
);
1320 * Initialize ev struct to 0 to avoid valgrind complaining
1321 * about uninitialized data in timer_create call
1323 memset(&ev
, 0, sizeof(ev
));
1324 ev
.sigev_value
.sival_int
= 0;
1325 ev
.sigev_notify
= SIGEV_SIGNAL
;
1326 ev
.sigev_signo
= SIGALRM
;
1328 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1329 perror("timer_create");
1331 /* disable dynticks */
1332 fprintf(stderr
, "Dynamic Ticks disabled\n");
1337 t
->priv
= (void *)(long)host_timer
;
1342 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1344 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1346 timer_delete(host_timer
);
1349 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1351 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1352 struct itimerspec timeout
;
1353 int64_t nearest_delta_us
= INT64_MAX
;
1356 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1357 !active_timers
[QEMU_TIMER_VIRTUAL
])
1360 nearest_delta_us
= qemu_next_deadline_dyntick();
1362 /* check whether a timer is already running */
1363 if (timer_gettime(host_timer
, &timeout
)) {
1365 fprintf(stderr
, "Internal timer error: aborting\n");
1368 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1369 if (current_us
&& current_us
<= nearest_delta_us
)
1372 timeout
.it_interval
.tv_sec
= 0;
1373 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1374 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1375 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1376 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1378 fprintf(stderr
, "Internal timer error: aborting\n");
1383 #endif /* defined(__linux__) */
1385 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1387 struct sigaction act
;
1388 struct itimerval itv
;
1392 sigfillset(&act
.sa_mask
);
1394 act
.sa_handler
= host_alarm_handler
;
1396 sigaction(SIGALRM
, &act
, NULL
);
1398 itv
.it_interval
.tv_sec
= 0;
1399 /* for i386 kernel 2.6 to get 1 ms */
1400 itv
.it_interval
.tv_usec
= 999;
1401 itv
.it_value
.tv_sec
= 0;
1402 itv
.it_value
.tv_usec
= 10 * 1000;
1404 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1411 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1413 struct itimerval itv
;
1415 memset(&itv
, 0, sizeof(itv
));
1416 setitimer(ITIMER_REAL
, &itv
, NULL
);
1419 #endif /* !defined(_WIN32) */
1424 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1427 struct qemu_alarm_win32
*data
= t
->priv
;
1430 memset(&tc
, 0, sizeof(tc
));
1431 timeGetDevCaps(&tc
, sizeof(tc
));
1433 if (data
->period
< tc
.wPeriodMin
)
1434 data
->period
= tc
.wPeriodMin
;
1436 timeBeginPeriod(data
->period
);
1438 flags
= TIME_CALLBACK_FUNCTION
;
1439 if (alarm_has_dynticks(t
))
1440 flags
|= TIME_ONESHOT
;
1442 flags
|= TIME_PERIODIC
;
1444 data
->timerId
= timeSetEvent(1, // interval (ms)
1445 data
->period
, // resolution
1446 host_alarm_handler
, // function
1447 (DWORD
)t
, // parameter
1450 if (!data
->timerId
) {
1451 fprintf(stderr
, "Failed to initialize win32 alarm timer: %ld\n",
1453 timeEndPeriod(data
->period
);
1460 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1462 struct qemu_alarm_win32
*data
= t
->priv
;
1464 timeKillEvent(data
->timerId
);
1465 timeEndPeriod(data
->period
);
1468 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1470 struct qemu_alarm_win32
*data
= t
->priv
;
1471 uint64_t nearest_delta_us
;
1473 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1474 !active_timers
[QEMU_TIMER_VIRTUAL
])
1477 nearest_delta_us
= qemu_next_deadline_dyntick();
1478 nearest_delta_us
/= 1000;
1480 timeKillEvent(data
->timerId
);
1482 data
->timerId
= timeSetEvent(1,
1486 TIME_ONESHOT
| TIME_PERIODIC
);
1488 if (!data
->timerId
) {
1489 fprintf(stderr
, "Failed to re-arm win32 alarm timer %ld\n",
1492 timeEndPeriod(data
->period
);
1499 static int init_timer_alarm(void)
1501 struct qemu_alarm_timer
*t
= NULL
;
1504 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1505 t
= &alarm_timers
[i
];
1525 static void quit_timers(void)
1527 alarm_timer
->stop(alarm_timer
);
1531 /***********************************************************/
1532 /* host time/date access */
1533 void qemu_get_timedate(struct tm
*tm
, int offset
)
1540 if (rtc_date_offset
== -1) {
1544 ret
= localtime(&ti
);
1546 ti
-= rtc_date_offset
;
1550 memcpy(tm
, ret
, sizeof(struct tm
));
1553 int qemu_timedate_diff(struct tm
*tm
)
1557 if (rtc_date_offset
== -1)
1559 seconds
= mktimegm(tm
);
1561 seconds
= mktime(tm
);
1563 seconds
= mktimegm(tm
) + rtc_date_offset
;
1565 return seconds
- time(NULL
);
1569 static void socket_cleanup(void)
1574 static int socket_init(void)
1579 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
1581 err
= WSAGetLastError();
1582 fprintf(stderr
, "WSAStartup: %d\n", err
);
1585 atexit(socket_cleanup
);
1590 /***********************************************************/
1591 /* Bluetooth support */
1594 static struct HCIInfo
*hci_table
[MAX_NICS
];
1596 static struct bt_vlan_s
{
1597 struct bt_scatternet_s net
;
1599 struct bt_vlan_s
*next
;
1602 /* find or alloc a new bluetooth "VLAN" */
1603 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1605 struct bt_vlan_s
**pvlan
, *vlan
;
1606 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1610 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1612 pvlan
= &first_bt_vlan
;
1613 while (*pvlan
!= NULL
)
1614 pvlan
= &(*pvlan
)->next
;
1619 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1623 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1628 static struct HCIInfo null_hci
= {
1629 .cmd_send
= null_hci_send
,
1630 .sco_send
= null_hci_send
,
1631 .acl_send
= null_hci_send
,
1632 .bdaddr_set
= null_hci_addr_set
,
1635 struct HCIInfo
*qemu_next_hci(void)
1637 if (cur_hci
== nb_hcis
)
1640 return hci_table
[cur_hci
++];
1643 static struct HCIInfo
*hci_init(const char *str
)
1646 struct bt_scatternet_s
*vlan
= 0;
1648 if (!strcmp(str
, "null"))
1651 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1653 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1654 else if (!strncmp(str
, "hci", 3)) {
1657 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1658 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1663 vlan
= qemu_find_bt_vlan(0);
1665 return bt_new_hci(vlan
);
1668 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1673 static int bt_hci_parse(const char *str
)
1675 struct HCIInfo
*hci
;
1678 if (nb_hcis
>= MAX_NICS
) {
1679 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1683 hci
= hci_init(str
);
1692 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1693 hci
->bdaddr_set(hci
, bdaddr
.b
);
1695 hci_table
[nb_hcis
++] = hci
;
1700 static void bt_vhci_add(int vlan_id
)
1702 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1705 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1706 "an empty scatternet %i\n", vlan_id
);
1708 bt_vhci_init(bt_new_hci(vlan
));
1711 static struct bt_device_s
*bt_device_add(const char *opt
)
1713 struct bt_scatternet_s
*vlan
;
1715 char *endp
= strstr(opt
, ",vlan=");
1716 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1719 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1722 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1724 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1729 vlan
= qemu_find_bt_vlan(vlan_id
);
1732 fprintf(stderr
, "qemu: warning: adding a slave device to "
1733 "an empty scatternet %i\n", vlan_id
);
1735 if (!strcmp(devname
, "keyboard"))
1736 return bt_keyboard_init(vlan
);
1738 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1742 static int bt_parse(const char *opt
)
1744 const char *endp
, *p
;
1747 if (strstart(opt
, "hci", &endp
)) {
1748 if (!*endp
|| *endp
== ',') {
1750 if (!strstart(endp
, ",vlan=", 0))
1753 return bt_hci_parse(opt
);
1755 } else if (strstart(opt
, "vhci", &endp
)) {
1756 if (!*endp
|| *endp
== ',') {
1758 if (strstart(endp
, ",vlan=", &p
)) {
1759 vlan
= strtol(p
, (char **) &endp
, 0);
1761 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1765 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1774 } else if (strstart(opt
, "device:", &endp
))
1775 return !bt_device_add(endp
);
1777 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1781 /***********************************************************/
1782 /* QEMU Block devices */
1784 #define HD_ALIAS "index=%d,media=disk"
1785 #define CDROM_ALIAS "index=2,media=cdrom"
1786 #define FD_ALIAS "index=%d,if=floppy"
1787 #define PFLASH_ALIAS "if=pflash"
1788 #define MTD_ALIAS "if=mtd"
1789 #define SD_ALIAS "index=0,if=sd"
1791 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
1798 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
1801 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, NULL
);
1803 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
1804 __FUNCTION__
, optstr
);
1808 qemu_opt_set(opts
, "file", file
);
1812 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
1816 /* seek interface, bus and unit */
1818 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1819 if (dinfo
->type
== type
&&
1820 dinfo
->bus
== bus
&&
1821 dinfo
->unit
== unit
)
1828 DriveInfo
*drive_get_by_id(const char *id
)
1832 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1833 if (strcmp(id
, dinfo
->id
))
1840 int drive_get_max_bus(BlockInterfaceType type
)
1846 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1847 if(dinfo
->type
== type
&&
1848 dinfo
->bus
> max_bus
)
1849 max_bus
= dinfo
->bus
;
1854 const char *drive_get_serial(BlockDriverState
*bdrv
)
1858 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1859 if (dinfo
->bdrv
== bdrv
)
1860 return dinfo
->serial
;
1866 BlockInterfaceErrorAction
drive_get_onerror(BlockDriverState
*bdrv
)
1870 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1871 if (dinfo
->bdrv
== bdrv
)
1872 return dinfo
->onerror
;
1875 return BLOCK_ERR_STOP_ENOSPC
;
1878 static void bdrv_format_print(void *opaque
, const char *name
)
1880 fprintf(stderr
, " %s", name
);
1883 void drive_uninit(BlockDriverState
*bdrv
)
1887 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
1888 if (dinfo
->bdrv
!= bdrv
)
1890 qemu_opts_del(dinfo
->opts
);
1891 QTAILQ_REMOVE(&drives
, dinfo
, next
);
1897 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
1901 const char *file
= NULL
;
1904 const char *mediastr
= "";
1905 BlockInterfaceType type
;
1906 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
1907 int bus_id
, unit_id
;
1908 int cyls
, heads
, secs
, translation
;
1909 BlockDriver
*drv
= NULL
;
1910 QEMUMachine
*machine
= opaque
;
1915 int bdrv_flags
, onerror
;
1916 const char *devaddr
;
1922 translation
= BIOS_ATA_TRANSLATION_AUTO
;
1925 if (machine
&& machine
->use_scsi
) {
1927 max_devs
= MAX_SCSI_DEVS
;
1928 pstrcpy(devname
, sizeof(devname
), "scsi");
1931 max_devs
= MAX_IDE_DEVS
;
1932 pstrcpy(devname
, sizeof(devname
), "ide");
1936 /* extract parameters */
1937 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
1938 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
1939 index
= qemu_opt_get_number(opts
, "index", -1);
1941 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
1942 heads
= qemu_opt_get_number(opts
, "heads", 0);
1943 secs
= qemu_opt_get_number(opts
, "secs", 0);
1945 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
1947 file
= qemu_opt_get(opts
, "file");
1948 serial
= qemu_opt_get(opts
, "serial");
1950 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
1951 pstrcpy(devname
, sizeof(devname
), buf
);
1952 if (!strcmp(buf
, "ide")) {
1954 max_devs
= MAX_IDE_DEVS
;
1955 } else if (!strcmp(buf
, "scsi")) {
1957 max_devs
= MAX_SCSI_DEVS
;
1958 } else if (!strcmp(buf
, "floppy")) {
1961 } else if (!strcmp(buf
, "pflash")) {
1964 } else if (!strcmp(buf
, "mtd")) {
1967 } else if (!strcmp(buf
, "sd")) {
1970 } else if (!strcmp(buf
, "virtio")) {
1973 } else if (!strcmp(buf
, "xen")) {
1976 } else if (!strcmp(buf
, "none")) {
1980 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
1985 if (cyls
|| heads
|| secs
) {
1986 if (cyls
< 1 || cyls
> 16383) {
1987 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
1990 if (heads
< 1 || heads
> 16) {
1991 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
1994 if (secs
< 1 || secs
> 63) {
1995 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
2000 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
2003 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2007 if (!strcmp(buf
, "none"))
2008 translation
= BIOS_ATA_TRANSLATION_NONE
;
2009 else if (!strcmp(buf
, "lba"))
2010 translation
= BIOS_ATA_TRANSLATION_LBA
;
2011 else if (!strcmp(buf
, "auto"))
2012 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2014 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
2019 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
2020 if (!strcmp(buf
, "disk")) {
2022 } else if (!strcmp(buf
, "cdrom")) {
2023 if (cyls
|| secs
|| heads
) {
2025 "qemu: '%s' invalid physical CHS format\n", buf
);
2028 media
= MEDIA_CDROM
;
2030 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
2035 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
2036 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2038 else if (!strcmp(buf
, "writethrough"))
2040 else if (!strcmp(buf
, "writeback"))
2043 fprintf(stderr
, "qemu: invalid cache option\n");
2048 #ifdef CONFIG_LINUX_AIO
2049 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
2050 if (!strcmp(buf
, "threads"))
2052 else if (!strcmp(buf
, "native"))
2055 fprintf(stderr
, "qemu: invalid aio option\n");
2061 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
2062 if (strcmp(buf
, "?") == 0) {
2063 fprintf(stderr
, "qemu: Supported formats:");
2064 bdrv_iterate_format(bdrv_format_print
, NULL
);
2065 fprintf(stderr
, "\n");
2068 drv
= bdrv_find_format(buf
);
2070 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2075 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2076 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
2077 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2078 fprintf(stderr
, "werror is no supported by this format\n");
2081 if (!strcmp(buf
, "ignore"))
2082 onerror
= BLOCK_ERR_IGNORE
;
2083 else if (!strcmp(buf
, "enospc"))
2084 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2085 else if (!strcmp(buf
, "stop"))
2086 onerror
= BLOCK_ERR_STOP_ANY
;
2087 else if (!strcmp(buf
, "report"))
2088 onerror
= BLOCK_ERR_REPORT
;
2090 fprintf(stderr
, "qemu: '%s' invalid write error action\n", buf
);
2095 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
2096 if (type
!= IF_VIRTIO
) {
2097 fprintf(stderr
, "addr is not supported\n");
2102 /* compute bus and unit according index */
2105 if (bus_id
!= 0 || unit_id
!= -1) {
2107 "qemu: index cannot be used with bus and unit\n");
2115 unit_id
= index
% max_devs
;
2116 bus_id
= index
/ max_devs
;
2120 /* if user doesn't specify a unit_id,
2121 * try to find the first free
2124 if (unit_id
== -1) {
2126 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2128 if (max_devs
&& unit_id
>= max_devs
) {
2129 unit_id
-= max_devs
;
2137 if (max_devs
&& unit_id
>= max_devs
) {
2138 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
2139 unit_id
, max_devs
- 1);
2144 * ignore multiple definitions
2147 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2154 dinfo
= qemu_mallocz(sizeof(*dinfo
));
2155 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
2156 dinfo
->id
= qemu_strdup(buf
);
2158 /* no id supplied -> create one */
2159 dinfo
->id
= qemu_mallocz(32);
2160 if (type
== IF_IDE
|| type
== IF_SCSI
)
2161 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2163 snprintf(dinfo
->id
, 32, "%s%i%s%i",
2164 devname
, bus_id
, mediastr
, unit_id
);
2166 snprintf(dinfo
->id
, 32, "%s%s%i",
2167 devname
, mediastr
, unit_id
);
2169 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
2170 dinfo
->devaddr
= devaddr
;
2172 dinfo
->bus
= bus_id
;
2173 dinfo
->unit
= unit_id
;
2174 dinfo
->onerror
= onerror
;
2177 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
2178 QTAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
2188 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
2189 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
2193 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
2198 /* FIXME: This isn't really a floppy, but it's a reasonable
2201 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
2207 /* add virtio block device */
2208 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
2209 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
2210 qemu_opt_set(opts
, "drive", dinfo
->id
);
2212 qemu_opt_set(opts
, "addr", devaddr
);
2223 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2224 cache
= 2; /* always use write-back with snapshot */
2226 if (cache
== 0) /* no caching */
2227 bdrv_flags
|= BDRV_O_NOCACHE
;
2228 else if (cache
== 2) /* write-back */
2229 bdrv_flags
|= BDRV_O_CACHE_WB
;
2232 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
2234 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
2237 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
2238 fprintf(stderr
, "qemu: could not open disk image %s\n",
2243 if (bdrv_key_required(dinfo
->bdrv
))
2249 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
2251 QEMUMachine
*machine
= opaque
;
2252 int fatal_error
= 0;
2254 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
2261 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
2263 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
2264 qemu_opt_set(opts
, "snapshot", "on");
2269 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
2271 boot_set_handler
= func
;
2272 boot_set_opaque
= opaque
;
2275 int qemu_boot_set(const char *boot_devices
)
2277 if (!boot_set_handler
) {
2280 return boot_set_handler(boot_set_opaque
, boot_devices
);
2283 static int parse_bootdevices(char *devices
)
2285 /* We just do some generic consistency checks */
2289 for (p
= devices
; *p
!= '\0'; p
++) {
2290 /* Allowed boot devices are:
2291 * a-b: floppy disk drives
2292 * c-f: IDE disk drives
2293 * g-m: machine implementation dependant drives
2294 * n-p: network devices
2295 * It's up to each machine implementation to check if the given boot
2296 * devices match the actual hardware implementation and firmware
2299 if (*p
< 'a' || *p
> 'p') {
2300 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2303 if (bitmap
& (1 << (*p
- 'a'))) {
2304 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2307 bitmap
|= 1 << (*p
- 'a');
2312 static void restore_boot_devices(void *opaque
)
2314 char *standard_boot_devices
= opaque
;
2316 qemu_boot_set(standard_boot_devices
);
2318 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
2319 qemu_free(standard_boot_devices
);
2322 static void numa_add(const char *optarg
)
2326 unsigned long long value
, endvalue
;
2329 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2330 if (!strcmp(option
, "node")) {
2331 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2332 nodenr
= nb_numa_nodes
;
2334 nodenr
= strtoull(option
, NULL
, 10);
2337 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2338 node_mem
[nodenr
] = 0;
2340 value
= strtoull(option
, &endptr
, 0);
2342 case 0: case 'M': case 'm':
2349 node_mem
[nodenr
] = value
;
2351 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2352 node_cpumask
[nodenr
] = 0;
2354 value
= strtoull(option
, &endptr
, 10);
2357 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2359 if (*endptr
== '-') {
2360 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2361 if (endvalue
>= 63) {
2364 "only 63 CPUs in NUMA mode supported.\n");
2366 value
= (1 << (endvalue
+ 1)) - (1 << value
);
2371 node_cpumask
[nodenr
] = value
;
2378 static void smp_parse(const char *optarg
)
2380 int smp
, sockets
= 0, threads
= 0, cores
= 0;
2384 smp
= strtoul(optarg
, &endptr
, 10);
2385 if (endptr
!= optarg
) {
2386 if (*endptr
== ',') {
2390 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
2391 sockets
= strtoull(option
, NULL
, 10);
2392 if (get_param_value(option
, 128, "cores", endptr
) != 0)
2393 cores
= strtoull(option
, NULL
, 10);
2394 if (get_param_value(option
, 128, "threads", endptr
) != 0)
2395 threads
= strtoull(option
, NULL
, 10);
2396 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
2397 max_cpus
= strtoull(option
, NULL
, 10);
2399 /* compute missing values, prefer sockets over cores over threads */
2400 if (smp
== 0 || sockets
== 0) {
2401 sockets
= sockets
> 0 ? sockets
: 1;
2402 cores
= cores
> 0 ? cores
: 1;
2403 threads
= threads
> 0 ? threads
: 1;
2405 smp
= cores
* threads
* sockets
;
2407 sockets
= smp
/ (cores
* threads
);
2411 threads
= threads
> 0 ? threads
: 1;
2412 cores
= smp
/ (sockets
* threads
);
2415 sockets
= smp
/ (cores
* threads
);
2417 threads
= smp
/ (cores
* sockets
);
2422 smp_cores
= cores
> 0 ? cores
: 1;
2423 smp_threads
= threads
> 0 ? threads
: 1;
2425 max_cpus
= smp_cpus
;
2428 /***********************************************************/
2431 static void usb_msd_password_cb(void *opaque
, int err
)
2433 USBDevice
*dev
= opaque
;
2436 usb_device_attach(dev
);
2438 dev
->info
->handle_destroy(dev
);
2447 .qdev
= "QEMU USB Mouse",
2450 .qdev
= "QEMU USB Tablet",
2453 .qdev
= "QEMU USB Keyboard",
2455 .name
= "wacom-tablet",
2456 .qdev
= "QEMU PenPartner Tablet",
2460 static int usb_device_add(const char *devname
, int is_hotplug
)
2463 USBBus
*bus
= usb_bus_find(-1 /* any */);
2464 USBDevice
*dev
= NULL
;
2470 /* simple devices which don't need extra care */
2471 for (i
= 0; i
< ARRAY_SIZE(usbdevs
); i
++) {
2472 if (strcmp(devname
, usbdevs
[i
].name
) != 0)
2474 dev
= usb_create_simple(bus
, usbdevs
[i
].qdev
);
2478 /* the other ones */
2479 if (strstart(devname
, "host:", &p
)) {
2480 dev
= usb_host_device_open(p
);
2481 } else if (strstart(devname
, "disk:", &p
)) {
2482 BlockDriverState
*bs
;
2484 dev
= usb_msd_init(p
);
2487 bs
= usb_msd_get_bdrv(dev
);
2488 if (bdrv_key_required(bs
)) {
2491 monitor_read_bdrv_key_start(cur_mon
, bs
, usb_msd_password_cb
,
2496 } else if (strstart(devname
, "serial:", &p
)) {
2497 dev
= usb_serial_init(p
);
2498 #ifdef CONFIG_BRLAPI
2499 } else if (!strcmp(devname
, "braille")) {
2500 dev
= usb_baum_init();
2502 } else if (strstart(devname
, "net:", &p
)) {
2505 if (net_client_init(NULL
, "nic", p
) < 0)
2507 nd_table
[nic
].model
= "usb";
2508 dev
= usb_net_init(&nd_table
[nic
]);
2509 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2510 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2511 bt_new_hci(qemu_find_bt_vlan(0)));
2522 static int usb_device_del(const char *devname
)
2527 if (strstart(devname
, "host:", &p
))
2528 return usb_host_device_close(p
);
2533 p
= strchr(devname
, '.');
2536 bus_num
= strtoul(devname
, NULL
, 0);
2537 addr
= strtoul(p
+ 1, NULL
, 0);
2539 return usb_device_delete_addr(bus_num
, addr
);
2542 static int usb_parse(const char *cmdline
)
2544 return usb_device_add(cmdline
, 0);
2547 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
2549 usb_device_add(qdict_get_str(qdict
, "devname"), 1);
2552 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
2554 usb_device_del(qdict_get_str(qdict
, "devname"));
2557 /***********************************************************/
2558 /* PCMCIA/Cardbus */
2560 static struct pcmcia_socket_entry_s
{
2561 PCMCIASocket
*socket
;
2562 struct pcmcia_socket_entry_s
*next
;
2563 } *pcmcia_sockets
= 0;
2565 void pcmcia_socket_register(PCMCIASocket
*socket
)
2567 struct pcmcia_socket_entry_s
*entry
;
2569 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2570 entry
->socket
= socket
;
2571 entry
->next
= pcmcia_sockets
;
2572 pcmcia_sockets
= entry
;
2575 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2577 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2579 ptr
= &pcmcia_sockets
;
2580 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2581 if (entry
->socket
== socket
) {
2587 void pcmcia_info(Monitor
*mon
)
2589 struct pcmcia_socket_entry_s
*iter
;
2591 if (!pcmcia_sockets
)
2592 monitor_printf(mon
, "No PCMCIA sockets\n");
2594 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2595 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2596 iter
->socket
->attached
? iter
->socket
->card_string
:
2600 /***********************************************************/
2601 /* register display */
2603 struct DisplayAllocator default_allocator
= {
2604 defaultallocator_create_displaysurface
,
2605 defaultallocator_resize_displaysurface
,
2606 defaultallocator_free_displaysurface
2609 void register_displaystate(DisplayState
*ds
)
2619 DisplayState
*get_displaystate(void)
2621 return display_state
;
2624 DisplayAllocator
*register_displayallocator(DisplayState
*ds
, DisplayAllocator
*da
)
2626 if(ds
->allocator
== &default_allocator
) ds
->allocator
= da
;
2627 return ds
->allocator
;
2632 static void dumb_display_init(void)
2634 DisplayState
*ds
= qemu_mallocz(sizeof(DisplayState
));
2635 ds
->allocator
= &default_allocator
;
2636 ds
->surface
= qemu_create_displaysurface(ds
, 640, 480);
2637 register_displaystate(ds
);
2640 /***********************************************************/
2643 typedef struct IOHandlerRecord
{
2645 IOCanRWHandler
*fd_read_poll
;
2647 IOHandler
*fd_write
;
2650 /* temporary data */
2652 struct IOHandlerRecord
*next
;
2655 static IOHandlerRecord
*first_io_handler
;
2657 /* XXX: fd_read_poll should be suppressed, but an API change is
2658 necessary in the character devices to suppress fd_can_read(). */
2659 int qemu_set_fd_handler2(int fd
,
2660 IOCanRWHandler
*fd_read_poll
,
2662 IOHandler
*fd_write
,
2665 IOHandlerRecord
**pioh
, *ioh
;
2667 if (!fd_read
&& !fd_write
) {
2668 pioh
= &first_io_handler
;
2673 if (ioh
->fd
== fd
) {
2680 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2684 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2685 ioh
->next
= first_io_handler
;
2686 first_io_handler
= ioh
;
2689 ioh
->fd_read_poll
= fd_read_poll
;
2690 ioh
->fd_read
= fd_read
;
2691 ioh
->fd_write
= fd_write
;
2692 ioh
->opaque
= opaque
;
2698 int qemu_set_fd_handler(int fd
,
2700 IOHandler
*fd_write
,
2703 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2707 /***********************************************************/
2708 /* Polling handling */
2710 typedef struct PollingEntry
{
2713 struct PollingEntry
*next
;
2716 static PollingEntry
*first_polling_entry
;
2718 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2720 PollingEntry
**ppe
, *pe
;
2721 pe
= qemu_mallocz(sizeof(PollingEntry
));
2723 pe
->opaque
= opaque
;
2724 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2729 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2731 PollingEntry
**ppe
, *pe
;
2732 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2734 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2742 /***********************************************************/
2743 /* Wait objects support */
2744 typedef struct WaitObjects
{
2746 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2747 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2748 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2751 static WaitObjects wait_objects
= {0};
2753 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2755 WaitObjects
*w
= &wait_objects
;
2757 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2759 w
->events
[w
->num
] = handle
;
2760 w
->func
[w
->num
] = func
;
2761 w
->opaque
[w
->num
] = opaque
;
2766 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2769 WaitObjects
*w
= &wait_objects
;
2772 for (i
= 0; i
< w
->num
; i
++) {
2773 if (w
->events
[i
] == handle
)
2776 w
->events
[i
] = w
->events
[i
+ 1];
2777 w
->func
[i
] = w
->func
[i
+ 1];
2778 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2786 /***********************************************************/
2787 /* ram save/restore */
2789 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2790 #define RAM_SAVE_FLAG_COMPRESS 0x02
2791 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2792 #define RAM_SAVE_FLAG_PAGE 0x08
2793 #define RAM_SAVE_FLAG_EOS 0x10
2795 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2797 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2798 uint32_t *array
= (uint32_t *)page
;
2801 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2802 if (array
[i
] != val
)
2809 static int ram_save_block(QEMUFile
*f
)
2811 static ram_addr_t current_addr
= 0;
2812 ram_addr_t saved_addr
= current_addr
;
2813 ram_addr_t addr
= 0;
2816 while (addr
< last_ram_offset
) {
2817 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
2820 cpu_physical_memory_reset_dirty(current_addr
,
2821 current_addr
+ TARGET_PAGE_SIZE
,
2822 MIGRATION_DIRTY_FLAG
);
2824 p
= qemu_get_ram_ptr(current_addr
);
2826 if (is_dup_page(p
, *p
)) {
2827 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
2828 qemu_put_byte(f
, *p
);
2830 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
2831 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
2837 addr
+= TARGET_PAGE_SIZE
;
2838 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
2844 static uint64_t bytes_transferred
= 0;
2846 static ram_addr_t
ram_save_remaining(void)
2849 ram_addr_t count
= 0;
2851 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2852 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2859 uint64_t ram_bytes_remaining(void)
2861 return ram_save_remaining() * TARGET_PAGE_SIZE
;
2864 uint64_t ram_bytes_transferred(void)
2866 return bytes_transferred
;
2869 uint64_t ram_bytes_total(void)
2871 return last_ram_offset
;
2874 static int ram_save_live(QEMUFile
*f
, int stage
, void *opaque
)
2877 uint64_t bytes_transferred_last
;
2879 uint64_t expected_time
= 0;
2881 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
2882 qemu_file_set_error(f
);
2887 /* Make sure all dirty bits are set */
2888 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2889 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2890 cpu_physical_memory_set_dirty(addr
);
2893 /* Enable dirty memory tracking */
2894 cpu_physical_memory_set_dirty_tracking(1);
2896 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
2899 bytes_transferred_last
= bytes_transferred
;
2900 bwidth
= get_clock();
2902 while (!qemu_file_rate_limit(f
)) {
2905 ret
= ram_save_block(f
);
2906 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
2907 if (ret
== 0) /* no more blocks */
2911 bwidth
= get_clock() - bwidth
;
2912 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
2914 /* if we haven't transferred anything this round, force expected_time to a
2915 * a very high value, but without crashing */
2919 /* try transferring iterative blocks of memory */
2923 /* flush all remaining blocks regardless of rate limiting */
2924 while (ram_save_block(f
) != 0) {
2925 bytes_transferred
+= TARGET_PAGE_SIZE
;
2927 cpu_physical_memory_set_dirty_tracking(0);
2930 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
2932 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
2934 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
2937 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
2942 if (version_id
!= 3)
2946 addr
= qemu_get_be64(f
);
2948 flags
= addr
& ~TARGET_PAGE_MASK
;
2949 addr
&= TARGET_PAGE_MASK
;
2951 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
2952 if (addr
!= last_ram_offset
)
2956 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
2957 uint8_t ch
= qemu_get_byte(f
);
2958 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
2961 (!kvm_enabled() || kvm_has_sync_mmu())) {
2962 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
2965 } else if (flags
& RAM_SAVE_FLAG_PAGE
)
2966 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
2967 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
2972 void qemu_service_io(void)
2974 qemu_notify_event();
2977 /***********************************************************/
2978 /* bottom halves (can be seen as timers which expire ASAP) */
2989 static QEMUBH
*first_bh
= NULL
;
2991 QEMUBH
*qemu_bh_new(QEMUBHFunc
*cb
, void *opaque
)
2994 bh
= qemu_mallocz(sizeof(QEMUBH
));
2996 bh
->opaque
= opaque
;
2997 bh
->next
= first_bh
;
3002 int qemu_bh_poll(void)
3008 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3009 if (!bh
->deleted
&& bh
->scheduled
) {
3018 /* remove deleted bhs */
3032 void qemu_bh_schedule_idle(QEMUBH
*bh
)
3040 void qemu_bh_schedule(QEMUBH
*bh
)
3046 /* stop the currently executing CPU to execute the BH ASAP */
3047 qemu_notify_event();
3050 void qemu_bh_cancel(QEMUBH
*bh
)
3055 void qemu_bh_delete(QEMUBH
*bh
)
3061 static void qemu_bh_update_timeout(int *timeout
)
3065 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3066 if (!bh
->deleted
&& bh
->scheduled
) {
3068 /* idle bottom halves will be polled at least
3070 *timeout
= MIN(10, *timeout
);
3072 /* non-idle bottom halves will be executed
3081 /***********************************************************/
3082 /* machine registration */
3084 static QEMUMachine
*first_machine
= NULL
;
3085 QEMUMachine
*current_machine
= NULL
;
3087 int qemu_register_machine(QEMUMachine
*m
)
3090 pm
= &first_machine
;
3098 static QEMUMachine
*find_machine(const char *name
)
3102 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3103 if (!strcmp(m
->name
, name
))
3105 if (m
->alias
&& !strcmp(m
->alias
, name
))
3111 static QEMUMachine
*find_default_machine(void)
3115 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3116 if (m
->is_default
) {
3123 /***********************************************************/
3124 /* main execution loop */
3126 static void gui_update(void *opaque
)
3128 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3129 DisplayState
*ds
= opaque
;
3130 DisplayChangeListener
*dcl
= ds
->listeners
;
3134 while (dcl
!= NULL
) {
3135 if (dcl
->gui_timer_interval
&&
3136 dcl
->gui_timer_interval
< interval
)
3137 interval
= dcl
->gui_timer_interval
;
3140 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3143 static void nographic_update(void *opaque
)
3145 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3147 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3150 struct vm_change_state_entry
{
3151 VMChangeStateHandler
*cb
;
3153 QLIST_ENTRY (vm_change_state_entry
) entries
;
3156 static QLIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3158 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3161 VMChangeStateEntry
*e
;
3163 e
= qemu_mallocz(sizeof (*e
));
3167 QLIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3171 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3173 QLIST_REMOVE (e
, entries
);
3177 static void vm_state_notify(int running
, int reason
)
3179 VMChangeStateEntry
*e
;
3181 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3182 e
->cb(e
->opaque
, running
, reason
);
3186 static void resume_all_vcpus(void);
3187 static void pause_all_vcpus(void);
3194 vm_state_notify(1, 0);
3195 qemu_rearm_alarm_timer(alarm_timer
);
3200 /* reset/shutdown handler */
3202 typedef struct QEMUResetEntry
{
3203 QTAILQ_ENTRY(QEMUResetEntry
) entry
;
3204 QEMUResetHandler
*func
;
3208 static QTAILQ_HEAD(reset_handlers
, QEMUResetEntry
) reset_handlers
=
3209 QTAILQ_HEAD_INITIALIZER(reset_handlers
);
3210 static int reset_requested
;
3211 static int shutdown_requested
;
3212 static int powerdown_requested
;
3213 static int debug_requested
;
3214 static int vmstop_requested
;
3216 int qemu_shutdown_requested(void)
3218 int r
= shutdown_requested
;
3219 shutdown_requested
= 0;
3223 int qemu_reset_requested(void)
3225 int r
= reset_requested
;
3226 reset_requested
= 0;
3230 int qemu_powerdown_requested(void)
3232 int r
= powerdown_requested
;
3233 powerdown_requested
= 0;
3237 static int qemu_debug_requested(void)
3239 int r
= debug_requested
;
3240 debug_requested
= 0;
3244 static int qemu_vmstop_requested(void)
3246 int r
= vmstop_requested
;
3247 vmstop_requested
= 0;
3251 static void do_vm_stop(int reason
)
3254 cpu_disable_ticks();
3257 vm_state_notify(0, reason
);
3261 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3263 QEMUResetEntry
*re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3266 re
->opaque
= opaque
;
3267 QTAILQ_INSERT_TAIL(&reset_handlers
, re
, entry
);
3270 void qemu_unregister_reset(QEMUResetHandler
*func
, void *opaque
)
3274 QTAILQ_FOREACH(re
, &reset_handlers
, entry
) {
3275 if (re
->func
== func
&& re
->opaque
== opaque
) {
3276 QTAILQ_REMOVE(&reset_handlers
, re
, entry
);
3283 void qemu_system_reset(void)
3285 QEMUResetEntry
*re
, *nre
;
3287 /* reset all devices */
3288 QTAILQ_FOREACH_SAFE(re
, &reset_handlers
, entry
, nre
) {
3289 re
->func(re
->opaque
);
3293 void qemu_system_reset_request(void)
3296 shutdown_requested
= 1;
3298 reset_requested
= 1;
3300 qemu_notify_event();
3303 void qemu_system_shutdown_request(void)
3305 shutdown_requested
= 1;
3306 qemu_notify_event();
3309 void qemu_system_powerdown_request(void)
3311 powerdown_requested
= 1;
3312 qemu_notify_event();
3315 #ifdef CONFIG_IOTHREAD
3316 static void qemu_system_vmstop_request(int reason
)
3318 vmstop_requested
= reason
;
3319 qemu_notify_event();
3324 static int io_thread_fd
= -1;
3326 static void qemu_event_increment(void)
3328 static const char byte
= 0;
3330 if (io_thread_fd
== -1)
3333 write(io_thread_fd
, &byte
, sizeof(byte
));
3336 static void qemu_event_read(void *opaque
)
3338 int fd
= (unsigned long)opaque
;
3341 /* Drain the notify pipe */
3344 len
= read(fd
, buffer
, sizeof(buffer
));
3345 } while ((len
== -1 && errno
== EINTR
) || len
> 0);
3348 static int qemu_event_init(void)
3357 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3361 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3365 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3366 (void *)(unsigned long)fds
[0]);
3368 io_thread_fd
= fds
[1];
3377 HANDLE qemu_event_handle
;
3379 static void dummy_event_handler(void *opaque
)
3383 static int qemu_event_init(void)
3385 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3386 if (!qemu_event_handle
) {
3387 fprintf(stderr
, "Failed CreateEvent: %ld\n", GetLastError());
3390 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3394 static void qemu_event_increment(void)
3396 if (!SetEvent(qemu_event_handle
)) {
3397 fprintf(stderr
, "qemu_event_increment: SetEvent failed: %ld\n",
3404 static int cpu_can_run(CPUState
*env
)
3413 #ifndef CONFIG_IOTHREAD
3414 static int qemu_init_main_loop(void)
3416 return qemu_event_init();
3419 void qemu_init_vcpu(void *_env
)
3421 CPUState
*env
= _env
;
3425 env
->nr_cores
= smp_cores
;
3426 env
->nr_threads
= smp_threads
;
3430 int qemu_cpu_self(void *env
)
3435 static void resume_all_vcpus(void)
3439 static void pause_all_vcpus(void)
3443 void qemu_cpu_kick(void *env
)
3448 void qemu_notify_event(void)
3450 CPUState
*env
= cpu_single_env
;
3457 #define qemu_mutex_lock_iothread() do { } while (0)
3458 #define qemu_mutex_unlock_iothread() do { } while (0)
3460 void vm_stop(int reason
)
3465 #else /* CONFIG_IOTHREAD */
3467 #include "qemu-thread.h"
3469 QemuMutex qemu_global_mutex
;
3470 static QemuMutex qemu_fair_mutex
;
3472 static QemuThread io_thread
;
3474 static QemuThread
*tcg_cpu_thread
;
3475 static QemuCond
*tcg_halt_cond
;
3477 static int qemu_system_ready
;
3479 static QemuCond qemu_cpu_cond
;
3481 static QemuCond qemu_system_cond
;
3482 static QemuCond qemu_pause_cond
;
3484 static void block_io_signals(void);
3485 static void unblock_io_signals(void);
3486 static int tcg_has_work(void);
3488 static int qemu_init_main_loop(void)
3492 ret
= qemu_event_init();
3496 qemu_cond_init(&qemu_pause_cond
);
3497 qemu_mutex_init(&qemu_fair_mutex
);
3498 qemu_mutex_init(&qemu_global_mutex
);
3499 qemu_mutex_lock(&qemu_global_mutex
);
3501 unblock_io_signals();
3502 qemu_thread_self(&io_thread
);
3507 static void qemu_wait_io_event(CPUState
*env
)
3509 while (!tcg_has_work())
3510 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3512 qemu_mutex_unlock(&qemu_global_mutex
);
3515 * Users of qemu_global_mutex can be starved, having no chance
3516 * to acquire it since this path will get to it first.
3517 * So use another lock to provide fairness.
3519 qemu_mutex_lock(&qemu_fair_mutex
);
3520 qemu_mutex_unlock(&qemu_fair_mutex
);
3522 qemu_mutex_lock(&qemu_global_mutex
);
3526 qemu_cond_signal(&qemu_pause_cond
);
3530 static int qemu_cpu_exec(CPUState
*env
);
3532 static void *kvm_cpu_thread_fn(void *arg
)
3534 CPUState
*env
= arg
;
3537 qemu_thread_self(env
->thread
);
3541 /* signal CPU creation */
3542 qemu_mutex_lock(&qemu_global_mutex
);
3544 qemu_cond_signal(&qemu_cpu_cond
);
3546 /* and wait for machine initialization */
3547 while (!qemu_system_ready
)
3548 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3551 if (cpu_can_run(env
))
3553 qemu_wait_io_event(env
);
3559 static void tcg_cpu_exec(void);
3561 static void *tcg_cpu_thread_fn(void *arg
)
3563 CPUState
*env
= arg
;
3566 qemu_thread_self(env
->thread
);
3568 /* signal CPU creation */
3569 qemu_mutex_lock(&qemu_global_mutex
);
3570 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3572 qemu_cond_signal(&qemu_cpu_cond
);
3574 /* and wait for machine initialization */
3575 while (!qemu_system_ready
)
3576 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3580 qemu_wait_io_event(cur_cpu
);
3586 void qemu_cpu_kick(void *_env
)
3588 CPUState
*env
= _env
;
3589 qemu_cond_broadcast(env
->halt_cond
);
3591 qemu_thread_signal(env
->thread
, SIGUSR1
);
3594 int qemu_cpu_self(void *_env
)
3596 CPUState
*env
= _env
;
3599 qemu_thread_self(&this);
3601 return qemu_thread_equal(&this, env
->thread
);
3604 static void cpu_signal(int sig
)
3607 cpu_exit(cpu_single_env
);
3610 static void block_io_signals(void)
3613 struct sigaction sigact
;
3616 sigaddset(&set
, SIGUSR2
);
3617 sigaddset(&set
, SIGIO
);
3618 sigaddset(&set
, SIGALRM
);
3619 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3622 sigaddset(&set
, SIGUSR1
);
3623 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3625 memset(&sigact
, 0, sizeof(sigact
));
3626 sigact
.sa_handler
= cpu_signal
;
3627 sigaction(SIGUSR1
, &sigact
, NULL
);
3630 static void unblock_io_signals(void)
3635 sigaddset(&set
, SIGUSR2
);
3636 sigaddset(&set
, SIGIO
);
3637 sigaddset(&set
, SIGALRM
);
3638 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3641 sigaddset(&set
, SIGUSR1
);
3642 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3645 static void qemu_signal_lock(unsigned int msecs
)
3647 qemu_mutex_lock(&qemu_fair_mutex
);
3649 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3650 qemu_thread_signal(tcg_cpu_thread
, SIGUSR1
);
3651 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3654 qemu_mutex_unlock(&qemu_fair_mutex
);
3657 static void qemu_mutex_lock_iothread(void)
3659 if (kvm_enabled()) {
3660 qemu_mutex_lock(&qemu_fair_mutex
);
3661 qemu_mutex_lock(&qemu_global_mutex
);
3662 qemu_mutex_unlock(&qemu_fair_mutex
);
3664 qemu_signal_lock(100);
3667 static void qemu_mutex_unlock_iothread(void)
3669 qemu_mutex_unlock(&qemu_global_mutex
);
3672 static int all_vcpus_paused(void)
3674 CPUState
*penv
= first_cpu
;
3679 penv
= (CPUState
*)penv
->next_cpu
;
3685 static void pause_all_vcpus(void)
3687 CPUState
*penv
= first_cpu
;
3691 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3692 qemu_cpu_kick(penv
);
3693 penv
= (CPUState
*)penv
->next_cpu
;
3696 while (!all_vcpus_paused()) {
3697 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3700 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3701 penv
= (CPUState
*)penv
->next_cpu
;
3706 static void resume_all_vcpus(void)
3708 CPUState
*penv
= first_cpu
;
3713 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3714 qemu_cpu_kick(penv
);
3715 penv
= (CPUState
*)penv
->next_cpu
;
3719 static void tcg_init_vcpu(void *_env
)
3721 CPUState
*env
= _env
;
3722 /* share a single thread for all cpus with TCG */
3723 if (!tcg_cpu_thread
) {
3724 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3725 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3726 qemu_cond_init(env
->halt_cond
);
3727 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3728 while (env
->created
== 0)
3729 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3730 tcg_cpu_thread
= env
->thread
;
3731 tcg_halt_cond
= env
->halt_cond
;
3733 env
->thread
= tcg_cpu_thread
;
3734 env
->halt_cond
= tcg_halt_cond
;
3738 static void kvm_start_vcpu(CPUState
*env
)
3740 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3741 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3742 qemu_cond_init(env
->halt_cond
);
3743 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3744 while (env
->created
== 0)
3745 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3748 void qemu_init_vcpu(void *_env
)
3750 CPUState
*env
= _env
;
3753 kvm_start_vcpu(env
);
3756 env
->nr_cores
= smp_cores
;
3757 env
->nr_threads
= smp_threads
;
3760 void qemu_notify_event(void)
3762 qemu_event_increment();
3765 void vm_stop(int reason
)
3768 qemu_thread_self(&me
);
3770 if (!qemu_thread_equal(&me
, &io_thread
)) {
3771 qemu_system_vmstop_request(reason
);
3773 * FIXME: should not return to device code in case
3774 * vm_stop() has been requested.
3776 if (cpu_single_env
) {
3777 cpu_exit(cpu_single_env
);
3778 cpu_single_env
->stop
= 1;
3789 static void host_main_loop_wait(int *timeout
)
3795 /* XXX: need to suppress polling by better using win32 events */
3797 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
3798 ret
|= pe
->func(pe
->opaque
);
3802 WaitObjects
*w
= &wait_objects
;
3804 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
3805 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
3806 if (w
->func
[ret
- WAIT_OBJECT_0
])
3807 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
3809 /* Check for additional signaled events */
3810 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
3812 /* Check if event is signaled */
3813 ret2
= WaitForSingleObject(w
->events
[i
], 0);
3814 if(ret2
== WAIT_OBJECT_0
) {
3816 w
->func
[i
](w
->opaque
[i
]);
3817 } else if (ret2
== WAIT_TIMEOUT
) {
3819 err
= GetLastError();
3820 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
3823 } else if (ret
== WAIT_TIMEOUT
) {
3825 err
= GetLastError();
3826 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
3833 static void host_main_loop_wait(int *timeout
)
3838 void main_loop_wait(int timeout
)
3840 IOHandlerRecord
*ioh
;
3841 fd_set rfds
, wfds
, xfds
;
3845 qemu_bh_update_timeout(&timeout
);
3847 host_main_loop_wait(&timeout
);
3849 /* poll any events */
3850 /* XXX: separate device handlers from system ones */
3855 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3859 (!ioh
->fd_read_poll
||
3860 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
3861 FD_SET(ioh
->fd
, &rfds
);
3865 if (ioh
->fd_write
) {
3866 FD_SET(ioh
->fd
, &wfds
);
3872 tv
.tv_sec
= timeout
/ 1000;
3873 tv
.tv_usec
= (timeout
% 1000) * 1000;
3875 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
3877 qemu_mutex_unlock_iothread();
3878 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
3879 qemu_mutex_lock_iothread();
3881 IOHandlerRecord
**pioh
;
3883 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3884 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
3885 ioh
->fd_read(ioh
->opaque
);
3887 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
3888 ioh
->fd_write(ioh
->opaque
);
3892 /* remove deleted IO handlers */
3893 pioh
= &first_io_handler
;
3904 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
3906 /* rearm timer, if not periodic */
3907 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
3908 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
3909 qemu_rearm_alarm_timer(alarm_timer
);
3912 /* vm time timers */
3914 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
3915 qemu_run_timers(&active_timers
[QEMU_TIMER_VIRTUAL
],
3916 qemu_get_clock(vm_clock
));
3919 /* real time timers */
3920 qemu_run_timers(&active_timers
[QEMU_TIMER_REALTIME
],
3921 qemu_get_clock(rt_clock
));
3923 /* Check bottom-halves last in case any of the earlier events triggered
3929 static int qemu_cpu_exec(CPUState
*env
)
3932 #ifdef CONFIG_PROFILER
3936 #ifdef CONFIG_PROFILER
3937 ti
= profile_getclock();
3942 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
3943 env
->icount_decr
.u16
.low
= 0;
3944 env
->icount_extra
= 0;
3945 count
= qemu_next_deadline();
3946 count
= (count
+ (1 << icount_time_shift
) - 1)
3947 >> icount_time_shift
;
3948 qemu_icount
+= count
;
3949 decr
= (count
> 0xffff) ? 0xffff : count
;
3951 env
->icount_decr
.u16
.low
= decr
;
3952 env
->icount_extra
= count
;
3954 ret
= cpu_exec(env
);
3955 #ifdef CONFIG_PROFILER
3956 qemu_time
+= profile_getclock() - ti
;
3959 /* Fold pending instructions back into the
3960 instruction counter, and clear the interrupt flag. */
3961 qemu_icount
-= (env
->icount_decr
.u16
.low
3962 + env
->icount_extra
);
3963 env
->icount_decr
.u32
= 0;
3964 env
->icount_extra
= 0;
3969 static void tcg_cpu_exec(void)
3973 if (next_cpu
== NULL
)
3974 next_cpu
= first_cpu
;
3975 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
3976 CPUState
*env
= cur_cpu
= next_cpu
;
3980 if (timer_alarm_pending
) {
3981 timer_alarm_pending
= 0;
3984 if (cpu_can_run(env
))
3985 ret
= qemu_cpu_exec(env
);
3986 if (ret
== EXCP_DEBUG
) {
3987 gdb_set_stop_cpu(env
);
3988 debug_requested
= 1;
3994 static int cpu_has_work(CPUState
*env
)
4002 if (qemu_cpu_has_work(env
))
4007 static int tcg_has_work(void)
4011 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
4012 if (cpu_has_work(env
))
4017 static int qemu_calculate_timeout(void)
4019 #ifndef CONFIG_IOTHREAD
4024 else if (tcg_has_work())
4026 else if (!use_icount
)
4029 /* XXX: use timeout computed from timers */
4032 /* Advance virtual time to the next event. */
4033 if (use_icount
== 1) {
4034 /* When not using an adaptive execution frequency
4035 we tend to get badly out of sync with real time,
4036 so just delay for a reasonable amount of time. */
4039 delta
= cpu_get_icount() - cpu_get_clock();
4042 /* If virtual time is ahead of real time then just
4044 timeout
= (delta
/ 1000000) + 1;
4046 /* Wait for either IO to occur or the next
4048 add
= qemu_next_deadline();
4049 /* We advance the timer before checking for IO.
4050 Limit the amount we advance so that early IO
4051 activity won't get the guest too far ahead. */
4055 add
= (add
+ (1 << icount_time_shift
) - 1)
4056 >> icount_time_shift
;
4058 timeout
= delta
/ 1000000;
4065 #else /* CONFIG_IOTHREAD */
4070 static int vm_can_run(void)
4072 if (powerdown_requested
)
4074 if (reset_requested
)
4076 if (shutdown_requested
)
4078 if (debug_requested
)
4083 qemu_irq qemu_system_powerdown
;
4085 static void main_loop(void)
4089 #ifdef CONFIG_IOTHREAD
4090 qemu_system_ready
= 1;
4091 qemu_cond_broadcast(&qemu_system_cond
);
4096 #ifdef CONFIG_PROFILER
4099 #ifndef CONFIG_IOTHREAD
4102 #ifdef CONFIG_PROFILER
4103 ti
= profile_getclock();
4105 main_loop_wait(qemu_calculate_timeout());
4106 #ifdef CONFIG_PROFILER
4107 dev_time
+= profile_getclock() - ti
;
4109 } while (vm_can_run());
4111 if (qemu_debug_requested())
4112 vm_stop(EXCP_DEBUG
);
4113 if (qemu_shutdown_requested()) {
4120 if (qemu_reset_requested()) {
4122 qemu_system_reset();
4125 if (qemu_powerdown_requested()) {
4126 qemu_irq_raise(qemu_system_powerdown
);
4128 if ((r
= qemu_vmstop_requested()))
4134 static void version(void)
4136 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4139 static void help(int exitcode
)
4142 printf("usage: %s [options] [disk_image]\n"
4144 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4146 #define DEF(option, opt_arg, opt_enum, opt_help) \
4148 #define DEFHEADING(text) stringify(text) "\n"
4149 #include "qemu-options.h"
4154 "During emulation, the following keys are useful:\n"
4155 "ctrl-alt-f toggle full screen\n"
4156 "ctrl-alt-n switch to virtual console 'n'\n"
4157 "ctrl-alt toggle mouse and keyboard grab\n"
4159 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4164 DEFAULT_NETWORK_SCRIPT
,
4165 DEFAULT_NETWORK_DOWN_SCRIPT
,
4167 DEFAULT_GDBSTUB_PORT
,
4172 #define HAS_ARG 0x0001
4175 #define DEF(option, opt_arg, opt_enum, opt_help) \
4177 #define DEFHEADING(text)
4178 #include "qemu-options.h"
4184 typedef struct QEMUOption
{
4190 static const QEMUOption qemu_options
[] = {
4191 { "h", 0, QEMU_OPTION_h
},
4192 #define DEF(option, opt_arg, opt_enum, opt_help) \
4193 { option, opt_arg, opt_enum },
4194 #define DEFHEADING(text)
4195 #include "qemu-options.h"
4203 struct soundhw soundhw
[] = {
4204 #ifdef HAS_AUDIO_CHOICE
4205 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4211 { .init_isa
= pcspk_audio_init
}
4218 "Creative Sound Blaster 16",
4221 { .init_isa
= SB16_init
}
4225 #ifdef CONFIG_CS4231A
4231 { .init_isa
= cs4231a_init
}
4239 "Yamaha YMF262 (OPL3)",
4241 "Yamaha YM3812 (OPL2)",
4245 { .init_isa
= Adlib_init
}
4252 "Gravis Ultrasound GF1",
4255 { .init_isa
= GUS_init
}
4262 "Intel 82801AA AC97 Audio",
4265 { .init_pci
= ac97_init
}
4269 #ifdef CONFIG_ES1370
4272 "ENSONIQ AudioPCI ES1370",
4275 { .init_pci
= es1370_init
}
4279 #endif /* HAS_AUDIO_CHOICE */
4281 { NULL
, NULL
, 0, 0, { NULL
} }
4284 static void select_soundhw (const char *optarg
)
4288 if (*optarg
== '?') {
4291 printf ("Valid sound card names (comma separated):\n");
4292 for (c
= soundhw
; c
->name
; ++c
) {
4293 printf ("%-11s %s\n", c
->name
, c
->descr
);
4295 printf ("\n-soundhw all will enable all of the above\n");
4296 exit (*optarg
!= '?');
4304 if (!strcmp (optarg
, "all")) {
4305 for (c
= soundhw
; c
->name
; ++c
) {
4313 e
= strchr (p
, ',');
4314 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4316 for (c
= soundhw
; c
->name
; ++c
) {
4317 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
4326 "Unknown sound card name (too big to show)\n");
4329 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4334 p
+= l
+ (e
!= NULL
);
4338 goto show_valid_cards
;
4343 static void select_vgahw (const char *p
)
4347 vga_interface_type
= VGA_NONE
;
4348 if (strstart(p
, "std", &opts
)) {
4349 vga_interface_type
= VGA_STD
;
4350 } else if (strstart(p
, "cirrus", &opts
)) {
4351 vga_interface_type
= VGA_CIRRUS
;
4352 } else if (strstart(p
, "vmware", &opts
)) {
4353 vga_interface_type
= VGA_VMWARE
;
4354 } else if (strstart(p
, "xenfb", &opts
)) {
4355 vga_interface_type
= VGA_XENFB
;
4356 } else if (!strstart(p
, "none", &opts
)) {
4358 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4362 const char *nextopt
;
4364 if (strstart(opts
, ",retrace=", &nextopt
)) {
4366 if (strstart(opts
, "dumb", &nextopt
))
4367 vga_retrace_method
= VGA_RETRACE_DUMB
;
4368 else if (strstart(opts
, "precise", &nextopt
))
4369 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4370 else goto invalid_vga
;
4371 } else goto invalid_vga
;
4377 static int balloon_parse(const char *arg
)
4381 if (strcmp(arg
, "none") == 0) {
4385 if (!strncmp(arg
, "virtio", 6)) {
4386 if (arg
[6] == ',') {
4387 /* have params -> parse them */
4388 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, NULL
);
4392 /* create empty opts */
4393 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4395 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
4404 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4406 exit(STATUS_CONTROL_C_EXIT
);
4411 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4415 if(strlen(str
) != 36)
4418 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4419 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4420 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4426 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4432 #define MAX_NET_CLIENTS 32
4436 static void termsig_handler(int signal
)
4438 qemu_system_shutdown_request();
4441 static void sigchld_handler(int signal
)
4443 waitpid(-1, NULL
, WNOHANG
);
4446 static void sighandler_setup(void)
4448 struct sigaction act
;
4450 memset(&act
, 0, sizeof(act
));
4451 act
.sa_handler
= termsig_handler
;
4452 sigaction(SIGINT
, &act
, NULL
);
4453 sigaction(SIGHUP
, &act
, NULL
);
4454 sigaction(SIGTERM
, &act
, NULL
);
4456 act
.sa_handler
= sigchld_handler
;
4457 act
.sa_flags
= SA_NOCLDSTOP
;
4458 sigaction(SIGCHLD
, &act
, NULL
);
4464 /* Look for support files in the same directory as the executable. */
4465 static char *find_datadir(const char *argv0
)
4471 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4478 while (p
!= buf
&& *p
!= '\\')
4481 if (access(buf
, R_OK
) == 0) {
4482 return qemu_strdup(buf
);
4488 /* Find a likely location for support files using the location of the binary.
4489 For installed binaries this will be "$bindir/../share/qemu". When
4490 running from the build tree this will be "$bindir/../pc-bios". */
4491 #define SHARE_SUFFIX "/share/qemu"
4492 #define BUILD_SUFFIX "/pc-bios"
4493 static char *find_datadir(const char *argv0
)
4501 #if defined(__linux__)
4504 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4510 #elif defined(__FreeBSD__)
4513 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4520 /* If we don't have any way of figuring out the actual executable
4521 location then try argv[0]. */
4523 p
= realpath(argv0
, buf
);
4531 max_len
= strlen(dir
) +
4532 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4533 res
= qemu_mallocz(max_len
);
4534 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4535 if (access(res
, R_OK
)) {
4536 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4537 if (access(res
, R_OK
)) {
4549 char *qemu_find_file(int type
, const char *name
)
4555 /* If name contains path separators then try it as a straight path. */
4556 if ((strchr(name
, '/') || strchr(name
, '\\'))
4557 && access(name
, R_OK
) == 0) {
4558 return qemu_strdup(name
);
4561 case QEMU_FILE_TYPE_BIOS
:
4564 case QEMU_FILE_TYPE_KEYMAP
:
4565 subdir
= "keymaps/";
4570 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4571 buf
= qemu_mallocz(len
);
4572 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4573 if (access(buf
, R_OK
)) {
4580 static int device_init_func(QemuOpts
*opts
, void *opaque
)
4584 dev
= qdev_device_add(opts
);
4590 struct device_config
{
4592 DEV_USB
, /* -usbdevice */
4595 const char *cmdline
;
4596 QTAILQ_ENTRY(device_config
) next
;
4598 QTAILQ_HEAD(, device_config
) device_configs
= QTAILQ_HEAD_INITIALIZER(device_configs
);
4600 static void add_device_config(int type
, const char *cmdline
)
4602 struct device_config
*conf
;
4604 conf
= qemu_mallocz(sizeof(*conf
));
4606 conf
->cmdline
= cmdline
;
4607 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
4610 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
4612 struct device_config
*conf
;
4615 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
4616 if (conf
->type
!= type
)
4618 rc
= func(conf
->cmdline
);
4625 int main(int argc
, char **argv
, char **envp
)
4627 const char *gdbstub_dev
= NULL
;
4628 uint32_t boot_devices_bitmap
= 0;
4630 int snapshot
, linux_boot
, net_boot
;
4631 const char *initrd_filename
;
4632 const char *kernel_filename
, *kernel_cmdline
;
4633 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4635 DisplayChangeListener
*dcl
;
4636 int cyls
, heads
, secs
, translation
;
4637 const char *net_clients
[MAX_NET_CLIENTS
];
4639 QemuOpts
*hda_opts
= NULL
, *opts
;
4641 const char *r
, *optarg
;
4642 CharDriverState
*monitor_hds
[MAX_MONITOR_DEVICES
];
4643 const char *monitor_devices
[MAX_MONITOR_DEVICES
];
4644 int monitor_device_index
;
4645 const char *serial_devices
[MAX_SERIAL_PORTS
];
4646 int serial_device_index
;
4647 const char *parallel_devices
[MAX_PARALLEL_PORTS
];
4648 int parallel_device_index
;
4649 const char *virtio_consoles
[MAX_VIRTIO_CONSOLES
];
4650 int virtio_console_index
;
4651 const char *loadvm
= NULL
;
4652 QEMUMachine
*machine
;
4653 const char *cpu_model
;
4658 const char *pid_file
= NULL
;
4659 const char *incoming
= NULL
;
4662 struct passwd
*pwd
= NULL
;
4663 const char *chroot_dir
= NULL
;
4664 const char *run_as
= NULL
;
4667 int show_vnc_port
= 0;
4669 qemu_errors_to_file(stderr
);
4670 qemu_cache_utils_init(envp
);
4672 QLIST_INIT (&vm_change_state_head
);
4675 struct sigaction act
;
4676 sigfillset(&act
.sa_mask
);
4678 act
.sa_handler
= SIG_IGN
;
4679 sigaction(SIGPIPE
, &act
, NULL
);
4682 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4683 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4684 QEMU to run on a single CPU */
4689 h
= GetCurrentProcess();
4690 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4691 for(i
= 0; i
< 32; i
++) {
4692 if (mask
& (1 << i
))
4697 SetProcessAffinityMask(h
, mask
);
4703 module_call_init(MODULE_INIT_MACHINE
);
4704 machine
= find_default_machine();
4706 initrd_filename
= NULL
;
4709 kernel_filename
= NULL
;
4710 kernel_cmdline
= "";
4711 cyls
= heads
= secs
= 0;
4712 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4714 serial_devices
[0] = "vc:80Cx24C";
4715 for(i
= 1; i
< MAX_SERIAL_PORTS
; i
++)
4716 serial_devices
[i
] = NULL
;
4717 serial_device_index
= 0;
4719 parallel_devices
[0] = "vc:80Cx24C";
4720 for(i
= 1; i
< MAX_PARALLEL_PORTS
; i
++)
4721 parallel_devices
[i
] = NULL
;
4722 parallel_device_index
= 0;
4724 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++)
4725 virtio_consoles
[i
] = NULL
;
4726 virtio_console_index
= 0;
4728 monitor_devices
[0] = "vc:80Cx24C";
4729 for (i
= 1; i
< MAX_MONITOR_DEVICES
; i
++) {
4730 monitor_devices
[i
] = NULL
;
4732 monitor_device_index
= 0;
4734 for (i
= 0; i
< MAX_NODES
; i
++) {
4736 node_cpumask
[i
] = 0;
4752 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4754 const QEMUOption
*popt
;
4757 /* Treat --foo the same as -foo. */
4760 popt
= qemu_options
;
4763 fprintf(stderr
, "%s: invalid option -- '%s'\n",
4767 if (!strcmp(popt
->name
, r
+ 1))
4771 if (popt
->flags
& HAS_ARG
) {
4772 if (optind
>= argc
) {
4773 fprintf(stderr
, "%s: option '%s' requires an argument\n",
4777 optarg
= argv
[optind
++];
4782 switch(popt
->index
) {
4784 machine
= find_machine(optarg
);
4787 printf("Supported machines are:\n");
4788 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4790 printf("%-10s %s (alias of %s)\n",
4791 m
->alias
, m
->desc
, m
->name
);
4792 printf("%-10s %s%s\n",
4794 m
->is_default
? " (default)" : "");
4796 exit(*optarg
!= '?');
4799 case QEMU_OPTION_cpu
:
4800 /* hw initialization will check this */
4801 if (*optarg
== '?') {
4802 /* XXX: implement xxx_cpu_list for targets that still miss it */
4803 #if defined(cpu_list)
4804 cpu_list(stdout
, &fprintf
);
4811 case QEMU_OPTION_initrd
:
4812 initrd_filename
= optarg
;
4814 case QEMU_OPTION_hda
:
4816 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
4818 hda_opts
= drive_add(optarg
, HD_ALIAS
4819 ",cyls=%d,heads=%d,secs=%d%s",
4820 0, cyls
, heads
, secs
,
4821 translation
== BIOS_ATA_TRANSLATION_LBA
?
4823 translation
== BIOS_ATA_TRANSLATION_NONE
?
4824 ",trans=none" : "");
4826 case QEMU_OPTION_hdb
:
4827 case QEMU_OPTION_hdc
:
4828 case QEMU_OPTION_hdd
:
4829 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
4831 case QEMU_OPTION_drive
:
4832 drive_add(NULL
, "%s", optarg
);
4834 case QEMU_OPTION_set
:
4835 if (qemu_set_option(optarg
) != 0)
4838 case QEMU_OPTION_mtdblock
:
4839 drive_add(optarg
, MTD_ALIAS
);
4841 case QEMU_OPTION_sd
:
4842 drive_add(optarg
, SD_ALIAS
);
4844 case QEMU_OPTION_pflash
:
4845 drive_add(optarg
, PFLASH_ALIAS
);
4847 case QEMU_OPTION_snapshot
:
4850 case QEMU_OPTION_hdachs
:
4854 cyls
= strtol(p
, (char **)&p
, 0);
4855 if (cyls
< 1 || cyls
> 16383)
4860 heads
= strtol(p
, (char **)&p
, 0);
4861 if (heads
< 1 || heads
> 16)
4866 secs
= strtol(p
, (char **)&p
, 0);
4867 if (secs
< 1 || secs
> 63)
4871 if (!strcmp(p
, "none"))
4872 translation
= BIOS_ATA_TRANSLATION_NONE
;
4873 else if (!strcmp(p
, "lba"))
4874 translation
= BIOS_ATA_TRANSLATION_LBA
;
4875 else if (!strcmp(p
, "auto"))
4876 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4879 } else if (*p
!= '\0') {
4881 fprintf(stderr
, "qemu: invalid physical CHS format\n");
4884 if (hda_opts
!= NULL
) {
4886 snprintf(num
, sizeof(num
), "%d", cyls
);
4887 qemu_opt_set(hda_opts
, "cyls", num
);
4888 snprintf(num
, sizeof(num
), "%d", heads
);
4889 qemu_opt_set(hda_opts
, "heads", num
);
4890 snprintf(num
, sizeof(num
), "%d", secs
);
4891 qemu_opt_set(hda_opts
, "secs", num
);
4892 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
4893 qemu_opt_set(hda_opts
, "trans", "lba");
4894 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
4895 qemu_opt_set(hda_opts
, "trans", "none");
4899 case QEMU_OPTION_numa
:
4900 if (nb_numa_nodes
>= MAX_NODES
) {
4901 fprintf(stderr
, "qemu: too many NUMA nodes\n");
4906 case QEMU_OPTION_nographic
:
4907 display_type
= DT_NOGRAPHIC
;
4909 #ifdef CONFIG_CURSES
4910 case QEMU_OPTION_curses
:
4911 display_type
= DT_CURSES
;
4914 case QEMU_OPTION_portrait
:
4917 case QEMU_OPTION_kernel
:
4918 kernel_filename
= optarg
;
4920 case QEMU_OPTION_append
:
4921 kernel_cmdline
= optarg
;
4923 case QEMU_OPTION_cdrom
:
4924 drive_add(optarg
, CDROM_ALIAS
);
4926 case QEMU_OPTION_boot
:
4928 static const char * const params
[] = {
4929 "order", "once", "menu", NULL
4931 char buf
[sizeof(boot_devices
)];
4932 char *standard_boot_devices
;
4935 if (!strchr(optarg
, '=')) {
4937 pstrcpy(buf
, sizeof(buf
), optarg
);
4938 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
4940 "qemu: unknown boot parameter '%s' in '%s'\n",
4946 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
4947 boot_devices_bitmap
= parse_bootdevices(buf
);
4948 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4951 if (get_param_value(buf
, sizeof(buf
),
4953 boot_devices_bitmap
|= parse_bootdevices(buf
);
4954 standard_boot_devices
= qemu_strdup(boot_devices
);
4955 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4956 qemu_register_reset(restore_boot_devices
,
4957 standard_boot_devices
);
4959 if (get_param_value(buf
, sizeof(buf
),
4961 if (!strcmp(buf
, "on")) {
4963 } else if (!strcmp(buf
, "off")) {
4967 "qemu: invalid option value '%s'\n",
4975 case QEMU_OPTION_fda
:
4976 case QEMU_OPTION_fdb
:
4977 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
4980 case QEMU_OPTION_no_fd_bootchk
:
4984 case QEMU_OPTION_net
:
4985 if (nb_net_clients
>= MAX_NET_CLIENTS
) {
4986 fprintf(stderr
, "qemu: too many network clients\n");
4989 net_clients
[nb_net_clients
] = optarg
;
4993 case QEMU_OPTION_tftp
:
4994 legacy_tftp_prefix
= optarg
;
4996 case QEMU_OPTION_bootp
:
4997 legacy_bootp_filename
= optarg
;
5000 case QEMU_OPTION_smb
:
5001 net_slirp_smb(optarg
);
5004 case QEMU_OPTION_redir
:
5005 net_slirp_redir(optarg
);
5008 case QEMU_OPTION_bt
:
5009 add_device_config(DEV_BT
, optarg
);
5012 case QEMU_OPTION_audio_help
:
5016 case QEMU_OPTION_soundhw
:
5017 select_soundhw (optarg
);
5023 case QEMU_OPTION_version
:
5027 case QEMU_OPTION_m
: {
5031 value
= strtoul(optarg
, &ptr
, 10);
5033 case 0: case 'M': case 'm':
5040 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5044 /* On 32-bit hosts, QEMU is limited by virtual address space */
5045 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
5046 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5049 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5050 fprintf(stderr
, "qemu: ram size too large\n");
5059 const CPULogItem
*item
;
5061 mask
= cpu_str_to_log_mask(optarg
);
5063 printf("Log items (comma separated):\n");
5064 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5065 printf("%-10s %s\n", item
->name
, item
->help
);
5073 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5075 case QEMU_OPTION_gdb
:
5076 gdbstub_dev
= optarg
;
5081 case QEMU_OPTION_bios
:
5084 case QEMU_OPTION_singlestep
:
5092 keyboard_layout
= optarg
;
5095 case QEMU_OPTION_localtime
:
5098 case QEMU_OPTION_vga
:
5099 select_vgahw (optarg
);
5101 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5107 w
= strtol(p
, (char **)&p
, 10);
5110 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5116 h
= strtol(p
, (char **)&p
, 10);
5121 depth
= strtol(p
, (char **)&p
, 10);
5122 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5123 depth
!= 24 && depth
!= 32)
5125 } else if (*p
== '\0') {
5126 depth
= graphic_depth
;
5133 graphic_depth
= depth
;
5137 case QEMU_OPTION_echr
:
5140 term_escape_char
= strtol(optarg
, &r
, 0);
5142 printf("Bad argument to echr\n");
5145 case QEMU_OPTION_monitor
:
5146 if (monitor_device_index
>= MAX_MONITOR_DEVICES
) {
5147 fprintf(stderr
, "qemu: too many monitor devices\n");
5150 monitor_devices
[monitor_device_index
] = optarg
;
5151 monitor_device_index
++;
5153 case QEMU_OPTION_chardev
:
5154 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, "backend");
5156 fprintf(stderr
, "parse error: %s\n", optarg
);
5159 if (qemu_chr_open_opts(opts
, NULL
) == NULL
) {
5163 case QEMU_OPTION_serial
:
5164 if (serial_device_index
>= MAX_SERIAL_PORTS
) {
5165 fprintf(stderr
, "qemu: too many serial ports\n");
5168 serial_devices
[serial_device_index
] = optarg
;
5169 serial_device_index
++;
5171 case QEMU_OPTION_watchdog
:
5174 "qemu: only one watchdog option may be given\n");
5179 case QEMU_OPTION_watchdog_action
:
5180 if (select_watchdog_action(optarg
) == -1) {
5181 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5185 case QEMU_OPTION_virtiocon
:
5186 if (virtio_console_index
>= MAX_VIRTIO_CONSOLES
) {
5187 fprintf(stderr
, "qemu: too many virtio consoles\n");
5190 virtio_consoles
[virtio_console_index
] = optarg
;
5191 virtio_console_index
++;
5193 case QEMU_OPTION_parallel
:
5194 if (parallel_device_index
>= MAX_PARALLEL_PORTS
) {
5195 fprintf(stderr
, "qemu: too many parallel ports\n");
5198 parallel_devices
[parallel_device_index
] = optarg
;
5199 parallel_device_index
++;
5201 case QEMU_OPTION_loadvm
:
5204 case QEMU_OPTION_full_screen
:
5208 case QEMU_OPTION_no_frame
:
5211 case QEMU_OPTION_alt_grab
:
5214 case QEMU_OPTION_no_quit
:
5217 case QEMU_OPTION_sdl
:
5218 display_type
= DT_SDL
;
5221 case QEMU_OPTION_pidfile
:
5225 case QEMU_OPTION_win2k_hack
:
5226 win2k_install_hack
= 1;
5228 case QEMU_OPTION_rtc_td_hack
:
5231 case QEMU_OPTION_acpitable
:
5232 if(acpi_table_add(optarg
) < 0) {
5233 fprintf(stderr
, "Wrong acpi table provided\n");
5237 case QEMU_OPTION_smbios
:
5238 if(smbios_entry_add(optarg
) < 0) {
5239 fprintf(stderr
, "Wrong smbios provided\n");
5245 case QEMU_OPTION_enable_kvm
:
5249 case QEMU_OPTION_usb
:
5252 case QEMU_OPTION_usbdevice
:
5254 add_device_config(DEV_USB
, optarg
);
5256 case QEMU_OPTION_device
:
5257 opts
= qemu_opts_parse(&qemu_device_opts
, optarg
, "driver");
5259 fprintf(stderr
, "parse error: %s\n", optarg
);
5263 case QEMU_OPTION_smp
:
5266 fprintf(stderr
, "Invalid number of CPUs\n");
5269 if (max_cpus
< smp_cpus
) {
5270 fprintf(stderr
, "maxcpus must be equal to or greater than "
5274 if (max_cpus
> 255) {
5275 fprintf(stderr
, "Unsupported number of maxcpus\n");
5279 case QEMU_OPTION_vnc
:
5280 display_type
= DT_VNC
;
5281 vnc_display
= optarg
;
5284 case QEMU_OPTION_no_acpi
:
5287 case QEMU_OPTION_no_hpet
:
5290 case QEMU_OPTION_balloon
:
5291 if (balloon_parse(optarg
) < 0) {
5292 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5297 case QEMU_OPTION_no_reboot
:
5300 case QEMU_OPTION_no_shutdown
:
5303 case QEMU_OPTION_show_cursor
:
5306 case QEMU_OPTION_uuid
:
5307 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5308 fprintf(stderr
, "Fail to parse UUID string."
5309 " Wrong format.\n");
5314 case QEMU_OPTION_daemonize
:
5318 case QEMU_OPTION_option_rom
:
5319 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5320 fprintf(stderr
, "Too many option ROMs\n");
5323 option_rom
[nb_option_roms
] = optarg
;
5326 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5327 case QEMU_OPTION_semihosting
:
5328 semihosting_enabled
= 1;
5331 case QEMU_OPTION_name
:
5332 qemu_name
= qemu_strdup(optarg
);
5334 char *p
= strchr(qemu_name
, ',');
5337 if (strncmp(p
, "process=", 8)) {
5338 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5346 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5347 case QEMU_OPTION_prom_env
:
5348 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5349 fprintf(stderr
, "Too many prom variables\n");
5352 prom_envs
[nb_prom_envs
] = optarg
;
5357 case QEMU_OPTION_old_param
:
5361 case QEMU_OPTION_clock
:
5362 configure_alarms(optarg
);
5364 case QEMU_OPTION_startdate
:
5367 time_t rtc_start_date
;
5368 if (!strcmp(optarg
, "now")) {
5369 rtc_date_offset
= -1;
5371 if (sscanf(optarg
, "%d-%d-%dT%d:%d:%d",
5379 } else if (sscanf(optarg
, "%d-%d-%d",
5382 &tm
.tm_mday
) == 3) {
5391 rtc_start_date
= mktimegm(&tm
);
5392 if (rtc_start_date
== -1) {
5394 fprintf(stderr
, "Invalid date format. Valid format are:\n"
5395 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5398 rtc_date_offset
= time(NULL
) - rtc_start_date
;
5402 case QEMU_OPTION_tb_size
:
5403 tb_size
= strtol(optarg
, NULL
, 0);
5407 case QEMU_OPTION_icount
:
5409 if (strcmp(optarg
, "auto") == 0) {
5410 icount_time_shift
= -1;
5412 icount_time_shift
= strtol(optarg
, NULL
, 0);
5415 case QEMU_OPTION_incoming
:
5419 case QEMU_OPTION_chroot
:
5420 chroot_dir
= optarg
;
5422 case QEMU_OPTION_runas
:
5427 case QEMU_OPTION_xen_domid
:
5428 xen_domid
= atoi(optarg
);
5430 case QEMU_OPTION_xen_create
:
5431 xen_mode
= XEN_CREATE
;
5433 case QEMU_OPTION_xen_attach
:
5434 xen_mode
= XEN_ATTACH
;
5441 /* If no data_dir is specified then try to find it relative to the
5444 data_dir
= find_datadir(argv
[0]);
5446 /* If all else fails use the install patch specified when building. */
5448 data_dir
= CONFIG_QEMU_SHAREDIR
;
5452 * Default to max_cpus = smp_cpus, in case the user doesn't
5453 * specify a max_cpus value.
5456 max_cpus
= smp_cpus
;
5458 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5459 if (smp_cpus
> machine
->max_cpus
) {
5460 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5461 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5466 if (display_type
== DT_NOGRAPHIC
) {
5467 if (serial_device_index
== 0)
5468 serial_devices
[0] = "stdio";
5469 if (parallel_device_index
== 0)
5470 parallel_devices
[0] = "null";
5471 if (strncmp(monitor_devices
[0], "vc", 2) == 0) {
5472 monitor_devices
[0] = "stdio";
5480 if (pipe(fds
) == -1)
5491 len
= read(fds
[0], &status
, 1);
5492 if (len
== -1 && (errno
== EINTR
))
5497 else if (status
== 1) {
5498 fprintf(stderr
, "Could not acquire pidfile\n");
5515 signal(SIGTSTP
, SIG_IGN
);
5516 signal(SIGTTOU
, SIG_IGN
);
5517 signal(SIGTTIN
, SIG_IGN
);
5520 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5523 write(fds
[1], &status
, 1);
5525 fprintf(stderr
, "Could not acquire pid file\n");
5530 if (kvm_enabled()) {
5533 ret
= kvm_init(smp_cpus
);
5535 fprintf(stderr
, "failed to initialize KVM\n");
5540 if (qemu_init_main_loop()) {
5541 fprintf(stderr
, "qemu_init_main_loop failed\n");
5544 linux_boot
= (kernel_filename
!= NULL
);
5546 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5547 fprintf(stderr
, "-append only allowed with -kernel option\n");
5551 if (!linux_boot
&& initrd_filename
!= NULL
) {
5552 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5557 /* Win32 doesn't support line-buffering and requires size >= 2 */
5558 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5562 if (init_timer_alarm() < 0) {
5563 fprintf(stderr
, "could not initialize alarm timer\n");
5566 if (use_icount
&& icount_time_shift
< 0) {
5568 /* 125MIPS seems a reasonable initial guess at the guest speed.
5569 It will be corrected fairly quickly anyway. */
5570 icount_time_shift
= 3;
5571 init_icount_adjust();
5578 /* init network clients */
5579 if (nb_net_clients
== 0) {
5580 /* if no clients, we use a default config */
5581 net_clients
[nb_net_clients
++] = "nic";
5583 net_clients
[nb_net_clients
++] = "user";
5587 for(i
= 0;i
< nb_net_clients
; i
++) {
5588 if (net_client_parse(net_clients
[i
]) < 0)
5592 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5593 net_set_boot_mask(net_boot
);
5597 /* init the bluetooth world */
5598 if (foreach_device_config(DEV_BT
, bt_parse
))
5601 /* init the memory */
5603 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5605 /* init the dynamic translator */
5606 cpu_exec_init_all(tb_size
* 1024 * 1024);
5610 /* we always create the cdrom drive, even if no disk is there */
5611 drive_add(NULL
, CDROM_ALIAS
);
5613 /* we always create at least one floppy */
5614 drive_add(NULL
, FD_ALIAS
, 0);
5616 /* we always create one sd slot, even if no card is in it */
5617 drive_add(NULL
, SD_ALIAS
);
5619 /* open the virtual block devices */
5621 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
5622 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
5625 vmstate_register(0, &vmstate_timers
,&timers_state
);
5626 register_savevm_live("ram", 0, 3, ram_save_live
, NULL
, ram_load
, NULL
);
5628 /* Maintain compatibility with multiple stdio monitors */
5629 if (!strcmp(monitor_devices
[0],"stdio")) {
5630 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5631 const char *devname
= serial_devices
[i
];
5632 if (devname
&& !strcmp(devname
,"mon:stdio")) {
5633 monitor_devices
[0] = NULL
;
5635 } else if (devname
&& !strcmp(devname
,"stdio")) {
5636 monitor_devices
[0] = NULL
;
5637 serial_devices
[i
] = "mon:stdio";
5643 if (nb_numa_nodes
> 0) {
5646 if (nb_numa_nodes
> smp_cpus
) {
5647 nb_numa_nodes
= smp_cpus
;
5650 /* If no memory size if given for any node, assume the default case
5651 * and distribute the available memory equally across all nodes
5653 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5654 if (node_mem
[i
] != 0)
5657 if (i
== nb_numa_nodes
) {
5658 uint64_t usedmem
= 0;
5660 /* On Linux, the each node's border has to be 8MB aligned,
5661 * the final node gets the rest.
5663 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5664 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5665 usedmem
+= node_mem
[i
];
5667 node_mem
[i
] = ram_size
- usedmem
;
5670 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5671 if (node_cpumask
[i
] != 0)
5674 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5675 * must cope with this anyway, because there are BIOSes out there in
5676 * real machines which also use this scheme.
5678 if (i
== nb_numa_nodes
) {
5679 for (i
= 0; i
< smp_cpus
; i
++) {
5680 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5685 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5686 const char *devname
= monitor_devices
[i
];
5687 if (devname
&& strcmp(devname
, "none")) {
5690 snprintf(label
, sizeof(label
), "monitor");
5692 snprintf(label
, sizeof(label
), "monitor%d", i
);
5694 monitor_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5695 if (!monitor_hds
[i
]) {
5696 fprintf(stderr
, "qemu: could not open monitor device '%s'\n",
5703 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5704 const char *devname
= serial_devices
[i
];
5705 if (devname
&& strcmp(devname
, "none")) {
5707 snprintf(label
, sizeof(label
), "serial%d", i
);
5708 serial_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5709 if (!serial_hds
[i
]) {
5710 fprintf(stderr
, "qemu: could not open serial device '%s'\n",
5717 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5718 const char *devname
= parallel_devices
[i
];
5719 if (devname
&& strcmp(devname
, "none")) {
5721 snprintf(label
, sizeof(label
), "parallel%d", i
);
5722 parallel_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5723 if (!parallel_hds
[i
]) {
5724 fprintf(stderr
, "qemu: could not open parallel device '%s'\n",
5731 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5732 const char *devname
= virtio_consoles
[i
];
5733 if (devname
&& strcmp(devname
, "none")) {
5735 snprintf(label
, sizeof(label
), "virtcon%d", i
);
5736 virtcon_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5737 if (!virtcon_hds
[i
]) {
5738 fprintf(stderr
, "qemu: could not open virtio console '%s'\n",
5745 module_call_init(MODULE_INIT_DEVICE
);
5748 i
= select_watchdog(watchdog
);
5750 exit (i
== 1 ? 1 : 0);
5753 if (machine
->compat_props
) {
5754 qdev_prop_register_compat(machine
->compat_props
);
5756 machine
->init(ram_size
, boot_devices
,
5757 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5761 /* must be after terminal init, SDL library changes signal handlers */
5765 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5766 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5767 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5773 current_machine
= machine
;
5775 /* init USB devices */
5777 foreach_device_config(DEV_USB
, usb_parse
);
5780 /* init generic devices */
5781 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
5785 dumb_display_init();
5786 /* just use the first displaystate for the moment */
5789 if (display_type
== DT_DEFAULT
) {
5790 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5791 display_type
= DT_SDL
;
5793 display_type
= DT_VNC
;
5794 vnc_display
= "localhost:0,to=99";
5800 switch (display_type
) {
5803 #if defined(CONFIG_CURSES)
5805 curses_display_init(ds
, full_screen
);
5808 #if defined(CONFIG_SDL)
5810 sdl_display_init(ds
, full_screen
, no_frame
);
5812 #elif defined(CONFIG_COCOA)
5814 cocoa_display_init(ds
, full_screen
);
5818 vnc_display_init(ds
);
5819 if (vnc_display_open(ds
, vnc_display
) < 0)
5822 if (show_vnc_port
) {
5823 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
5831 dcl
= ds
->listeners
;
5832 while (dcl
!= NULL
) {
5833 if (dcl
->dpy_refresh
!= NULL
) {
5834 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
5835 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
5840 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
5841 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
5842 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
5845 text_consoles_set_display(display_state
);
5846 qemu_chr_initial_reset();
5848 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5849 if (monitor_devices
[i
] && monitor_hds
[i
]) {
5850 monitor_init(monitor_hds
[i
],
5851 MONITOR_USE_READLINE
|
5852 ((i
== 0) ? MONITOR_IS_DEFAULT
: 0));
5856 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5857 const char *devname
= serial_devices
[i
];
5858 if (devname
&& strcmp(devname
, "none")) {
5859 if (strstart(devname
, "vc", 0))
5860 qemu_chr_printf(serial_hds
[i
], "serial%d console\r\n", i
);
5864 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5865 const char *devname
= parallel_devices
[i
];
5866 if (devname
&& strcmp(devname
, "none")) {
5867 if (strstart(devname
, "vc", 0))
5868 qemu_chr_printf(parallel_hds
[i
], "parallel%d console\r\n", i
);
5872 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5873 const char *devname
= virtio_consoles
[i
];
5874 if (virtcon_hds
[i
] && devname
) {
5875 if (strstart(devname
, "vc", 0))
5876 qemu_chr_printf(virtcon_hds
[i
], "virtio console%d\r\n", i
);
5880 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
5881 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
5887 if (load_vmstate(cur_mon
, loadvm
) < 0) {
5893 qemu_start_incoming_migration(incoming
);
5894 } else if (autostart
) {
5904 len
= write(fds
[1], &status
, 1);
5905 if (len
== -1 && (errno
== EINTR
))
5912 TFR(fd
= open("/dev/null", O_RDWR
));
5918 pwd
= getpwnam(run_as
);
5920 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
5926 if (chroot(chroot_dir
) < 0) {
5927 fprintf(stderr
, "chroot failed\n");
5934 if (setgid(pwd
->pw_gid
) < 0) {
5935 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
5938 if (setuid(pwd
->pw_uid
) < 0) {
5939 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
5942 if (setuid(0) != -1) {
5943 fprintf(stderr
, "Dropping privileges failed\n");