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"
34 /* Needed early to override system queue definitions on BSD */
35 #include "sys-queue.h"
40 #include <sys/times.h>
44 #include <sys/ioctl.h>
45 #include <sys/resource.h>
46 #include <sys/socket.h>
47 #include <netinet/in.h>
49 #if defined(__NetBSD__)
50 #include <net/if_tap.h>
53 #include <linux/if_tun.h>
55 #include <arpa/inet.h>
58 #include <sys/select.h>
61 #if defined(__FreeBSD__) || defined(__DragonFly__)
66 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
67 #include <freebsd/stdlib.h>
72 #include <linux/rtc.h>
73 #include <sys/prctl.h>
75 /* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77 /* #include <linux/hpet.h> */
80 #include <linux/ppdev.h>
81 #include <linux/parport.h>
85 #include <sys/ethernet.h>
86 #include <sys/sockio.h>
87 #include <netinet/arp.h>
88 #include <netinet/in.h>
89 #include <netinet/in_systm.h>
90 #include <netinet/ip.h>
91 #include <netinet/ip_icmp.h> // must come after ip.h
92 #include <netinet/udp.h>
93 #include <netinet/tcp.h>
101 #if defined(__OpenBSD__)
105 #if defined(CONFIG_VDE)
106 #include <libvdeplug.h>
111 #include <mmsystem.h>
115 #if defined(__APPLE__) || defined(main)
117 int qemu_main(int argc
, char **argv
, char **envp
);
118 int main(int argc
, char **argv
)
120 return qemu_main(argc
, argv
, NULL
);
123 #define main qemu_main
125 #endif /* CONFIG_SDL */
129 #define main qemu_main
130 #endif /* CONFIG_COCOA */
133 #include "hw/boards.h"
135 #include "hw/pcmcia.h"
137 #include "hw/audiodev.h"
141 #include "hw/watchdog.h"
142 #include "hw/smbios.h"
151 #include "qemu-timer.h"
152 #include "qemu-char.h"
153 #include "cache-utils.h"
156 #include "audio/audio.h"
157 #include "migration.h"
160 #include "qemu-option.h"
161 #include "qemu-config.h"
165 #include "exec-all.h"
167 #include "qemu_socket.h"
169 #include "slirp/libslirp.h"
172 //#define DEBUG_SLIRP
174 #define DEFAULT_RAM_SIZE 128
176 /* Maximum number of monitor devices */
177 #define MAX_MONITOR_DEVICES 10
179 static const char *data_dir
;
180 const char *bios_name
= NULL
;
181 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
182 to store the VM snapshots */
183 struct drivelist drives
= TAILQ_HEAD_INITIALIZER(drives
);
184 struct driveoptlist driveopts
= TAILQ_HEAD_INITIALIZER(driveopts
);
185 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
186 static DisplayState
*display_state
;
187 DisplayType display_type
= DT_DEFAULT
;
188 const char* keyboard_layout
= NULL
;
189 int64_t ticks_per_sec
;
192 NICInfo nd_table
[MAX_NICS
];
195 static int rtc_utc
= 1;
196 static int rtc_date_offset
= -1; /* -1 means no change */
197 int vga_interface_type
= VGA_CIRRUS
;
199 int graphic_width
= 1024;
200 int graphic_height
= 768;
201 int graphic_depth
= 8;
203 int graphic_width
= 800;
204 int graphic_height
= 600;
205 int graphic_depth
= 15;
207 static int full_screen
= 0;
209 static int no_frame
= 0;
212 CharDriverState
*serial_hds
[MAX_SERIAL_PORTS
];
213 CharDriverState
*parallel_hds
[MAX_PARALLEL_PORTS
];
214 CharDriverState
*virtcon_hds
[MAX_VIRTIO_CONSOLES
];
216 int win2k_install_hack
= 0;
225 const char *vnc_display
;
226 int acpi_enabled
= 1;
232 int graphic_rotate
= 0;
233 uint8_t irq0override
= 1;
237 const char *watchdog
;
238 const char *option_rom
[MAX_OPTION_ROMS
];
240 int semihosting_enabled
= 0;
244 const char *qemu_name
;
246 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
247 unsigned int nb_prom_envs
= 0;
248 const char *prom_envs
[MAX_PROM_ENVS
];
253 uint64_t node_mem
[MAX_NODES
];
254 uint64_t node_cpumask
[MAX_NODES
];
256 static CPUState
*cur_cpu
;
257 static CPUState
*next_cpu
;
258 static int timer_alarm_pending
= 1;
259 /* Conversion factor from emulated instructions to virtual clock ticks. */
260 static int icount_time_shift
;
261 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
262 #define MAX_ICOUNT_SHIFT 10
263 /* Compensate for varying guest execution speed. */
264 static int64_t qemu_icount_bias
;
265 static QEMUTimer
*icount_rt_timer
;
266 static QEMUTimer
*icount_vm_timer
;
267 static QEMUTimer
*nographic_timer
;
269 uint8_t qemu_uuid
[16];
271 static QEMUBootSetHandler
*boot_set_handler
;
272 static void *boot_set_opaque
;
274 /***********************************************************/
275 /* x86 ISA bus support */
277 target_phys_addr_t isa_mem_base
= 0;
280 /***********************************************************/
281 void hw_error(const char *fmt
, ...)
287 fprintf(stderr
, "qemu: hardware error: ");
288 vfprintf(stderr
, fmt
, ap
);
289 fprintf(stderr
, "\n");
290 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
291 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
293 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
295 cpu_dump_state(env
, stderr
, fprintf
, 0);
302 static void set_proc_name(const char *s
)
304 #if defined(__linux__) && defined(PR_SET_NAME)
308 name
[sizeof(name
) - 1] = 0;
309 strncpy(name
, s
, sizeof(name
));
310 /* Could rewrite argv[0] too, but that's a bit more complicated.
311 This simple way is enough for `top'. */
312 prctl(PR_SET_NAME
, name
);
319 static QEMUBalloonEvent
*qemu_balloon_event
;
320 void *qemu_balloon_event_opaque
;
322 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
324 qemu_balloon_event
= func
;
325 qemu_balloon_event_opaque
= opaque
;
328 void qemu_balloon(ram_addr_t target
)
330 if (qemu_balloon_event
)
331 qemu_balloon_event(qemu_balloon_event_opaque
, target
);
334 ram_addr_t
qemu_balloon_status(void)
336 if (qemu_balloon_event
)
337 return qemu_balloon_event(qemu_balloon_event_opaque
, 0);
341 /***********************************************************/
344 static QEMUPutKBDEvent
*qemu_put_kbd_event
;
345 static void *qemu_put_kbd_event_opaque
;
346 static QEMUPutMouseEntry
*qemu_put_mouse_event_head
;
347 static QEMUPutMouseEntry
*qemu_put_mouse_event_current
;
349 void qemu_add_kbd_event_handler(QEMUPutKBDEvent
*func
, void *opaque
)
351 qemu_put_kbd_event_opaque
= opaque
;
352 qemu_put_kbd_event
= func
;
355 QEMUPutMouseEntry
*qemu_add_mouse_event_handler(QEMUPutMouseEvent
*func
,
356 void *opaque
, int absolute
,
359 QEMUPutMouseEntry
*s
, *cursor
;
361 s
= qemu_mallocz(sizeof(QEMUPutMouseEntry
));
363 s
->qemu_put_mouse_event
= func
;
364 s
->qemu_put_mouse_event_opaque
= opaque
;
365 s
->qemu_put_mouse_event_absolute
= absolute
;
366 s
->qemu_put_mouse_event_name
= qemu_strdup(name
);
369 if (!qemu_put_mouse_event_head
) {
370 qemu_put_mouse_event_head
= qemu_put_mouse_event_current
= s
;
374 cursor
= qemu_put_mouse_event_head
;
375 while (cursor
->next
!= NULL
)
376 cursor
= cursor
->next
;
379 qemu_put_mouse_event_current
= s
;
384 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry
*entry
)
386 QEMUPutMouseEntry
*prev
= NULL
, *cursor
;
388 if (!qemu_put_mouse_event_head
|| entry
== NULL
)
391 cursor
= qemu_put_mouse_event_head
;
392 while (cursor
!= NULL
&& cursor
!= entry
) {
394 cursor
= cursor
->next
;
397 if (cursor
== NULL
) // does not exist or list empty
399 else if (prev
== NULL
) { // entry is head
400 qemu_put_mouse_event_head
= cursor
->next
;
401 if (qemu_put_mouse_event_current
== entry
)
402 qemu_put_mouse_event_current
= cursor
->next
;
403 qemu_free(entry
->qemu_put_mouse_event_name
);
408 prev
->next
= entry
->next
;
410 if (qemu_put_mouse_event_current
== entry
)
411 qemu_put_mouse_event_current
= prev
;
413 qemu_free(entry
->qemu_put_mouse_event_name
);
417 void kbd_put_keycode(int keycode
)
419 if (qemu_put_kbd_event
) {
420 qemu_put_kbd_event(qemu_put_kbd_event_opaque
, keycode
);
424 void kbd_mouse_event(int dx
, int dy
, int dz
, int buttons_state
)
426 QEMUPutMouseEvent
*mouse_event
;
427 void *mouse_event_opaque
;
430 if (!qemu_put_mouse_event_current
) {
435 qemu_put_mouse_event_current
->qemu_put_mouse_event
;
437 qemu_put_mouse_event_current
->qemu_put_mouse_event_opaque
;
440 if (graphic_rotate
) {
441 if (qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
)
444 width
= graphic_width
- 1;
445 mouse_event(mouse_event_opaque
,
446 width
- dy
, dx
, dz
, buttons_state
);
448 mouse_event(mouse_event_opaque
,
449 dx
, dy
, dz
, buttons_state
);
453 int kbd_mouse_is_absolute(void)
455 if (!qemu_put_mouse_event_current
)
458 return qemu_put_mouse_event_current
->qemu_put_mouse_event_absolute
;
461 void do_info_mice(Monitor
*mon
)
463 QEMUPutMouseEntry
*cursor
;
466 if (!qemu_put_mouse_event_head
) {
467 monitor_printf(mon
, "No mouse devices connected\n");
471 monitor_printf(mon
, "Mouse devices available:\n");
472 cursor
= qemu_put_mouse_event_head
;
473 while (cursor
!= NULL
) {
474 monitor_printf(mon
, "%c Mouse #%d: %s\n",
475 (cursor
== qemu_put_mouse_event_current
? '*' : ' '),
476 index
, cursor
->qemu_put_mouse_event_name
);
478 cursor
= cursor
->next
;
482 void do_mouse_set(Monitor
*mon
, const QDict
*qdict
)
484 QEMUPutMouseEntry
*cursor
;
486 int index
= qdict_get_int(qdict
, "index");
488 if (!qemu_put_mouse_event_head
) {
489 monitor_printf(mon
, "No mouse devices connected\n");
493 cursor
= qemu_put_mouse_event_head
;
494 while (cursor
!= NULL
&& index
!= i
) {
496 cursor
= cursor
->next
;
500 qemu_put_mouse_event_current
= cursor
;
502 monitor_printf(mon
, "Mouse at given index not found\n");
505 /* compute with 96 bit intermediate result: (a*b)/c */
506 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
511 #ifdef HOST_WORDS_BIGENDIAN
521 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
522 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
525 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
529 /***********************************************************/
530 /* real time host monotonic timer */
532 #define QEMU_TIMER_BASE 1000000000LL
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
, QEMU_TIMER_BASE
, 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 static int64_t cpu_ticks_prev
;
613 static int64_t cpu_ticks_offset
;
614 static int64_t cpu_clock_offset
;
615 static int cpu_ticks_enabled
;
617 /* return the host CPU cycle counter and handle stop/restart */
618 int64_t cpu_get_ticks(void)
621 return cpu_get_icount();
623 if (!cpu_ticks_enabled
) {
624 return cpu_ticks_offset
;
627 ticks
= cpu_get_real_ticks();
628 if (cpu_ticks_prev
> ticks
) {
629 /* Note: non increasing ticks may happen if the host uses
631 cpu_ticks_offset
+= cpu_ticks_prev
- ticks
;
633 cpu_ticks_prev
= ticks
;
634 return ticks
+ cpu_ticks_offset
;
638 /* return the host CPU monotonic timer and handle stop/restart */
639 static int64_t cpu_get_clock(void)
642 if (!cpu_ticks_enabled
) {
643 return cpu_clock_offset
;
646 return ti
+ cpu_clock_offset
;
650 /* enable cpu_get_ticks() */
651 void cpu_enable_ticks(void)
653 if (!cpu_ticks_enabled
) {
654 cpu_ticks_offset
-= cpu_get_real_ticks();
655 cpu_clock_offset
-= get_clock();
656 cpu_ticks_enabled
= 1;
660 /* disable cpu_get_ticks() : the clock is stopped. You must not call
661 cpu_get_ticks() after that. */
662 void cpu_disable_ticks(void)
664 if (cpu_ticks_enabled
) {
665 cpu_ticks_offset
= cpu_get_ticks();
666 cpu_clock_offset
= cpu_get_clock();
667 cpu_ticks_enabled
= 0;
671 /***********************************************************/
674 #define QEMU_TIMER_REALTIME 0
675 #define QEMU_TIMER_VIRTUAL 1
679 /* XXX: add frequency */
687 struct QEMUTimer
*next
;
690 struct qemu_alarm_timer
{
694 int (*start
)(struct qemu_alarm_timer
*t
);
695 void (*stop
)(struct qemu_alarm_timer
*t
);
696 void (*rearm
)(struct qemu_alarm_timer
*t
);
700 #define ALARM_FLAG_DYNTICKS 0x1
701 #define ALARM_FLAG_EXPIRED 0x2
703 static inline int alarm_has_dynticks(struct qemu_alarm_timer
*t
)
705 return t
&& (t
->flags
& ALARM_FLAG_DYNTICKS
);
708 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer
*t
)
710 if (!alarm_has_dynticks(t
))
716 /* TODO: MIN_TIMER_REARM_US should be optimized */
717 #define MIN_TIMER_REARM_US 250
719 static struct qemu_alarm_timer
*alarm_timer
;
723 struct qemu_alarm_win32
{
726 } alarm_win32_data
= {0, -1};
728 static int win32_start_timer(struct qemu_alarm_timer
*t
);
729 static void win32_stop_timer(struct qemu_alarm_timer
*t
);
730 static void win32_rearm_timer(struct qemu_alarm_timer
*t
);
734 static int unix_start_timer(struct qemu_alarm_timer
*t
);
735 static void unix_stop_timer(struct qemu_alarm_timer
*t
);
739 static int dynticks_start_timer(struct qemu_alarm_timer
*t
);
740 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
);
741 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
);
743 static int hpet_start_timer(struct qemu_alarm_timer
*t
);
744 static void hpet_stop_timer(struct qemu_alarm_timer
*t
);
746 static int rtc_start_timer(struct qemu_alarm_timer
*t
);
747 static void rtc_stop_timer(struct qemu_alarm_timer
*t
);
749 #endif /* __linux__ */
753 /* Correlation between real and virtual time is always going to be
754 fairly approximate, so ignore small variation.
755 When the guest is idle real and virtual time will be aligned in
757 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
759 static void icount_adjust(void)
764 static int64_t last_delta
;
765 /* If the VM is not running, then do nothing. */
769 cur_time
= cpu_get_clock();
770 cur_icount
= qemu_get_clock(vm_clock
);
771 delta
= cur_icount
- cur_time
;
772 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
774 && last_delta
+ ICOUNT_WOBBLE
< delta
* 2
775 && icount_time_shift
> 0) {
776 /* The guest is getting too far ahead. Slow time down. */
780 && last_delta
- ICOUNT_WOBBLE
> delta
* 2
781 && icount_time_shift
< MAX_ICOUNT_SHIFT
) {
782 /* The guest is getting too far behind. Speed time up. */
786 qemu_icount_bias
= cur_icount
- (qemu_icount
<< icount_time_shift
);
789 static void icount_adjust_rt(void * opaque
)
791 qemu_mod_timer(icount_rt_timer
,
792 qemu_get_clock(rt_clock
) + 1000);
796 static void icount_adjust_vm(void * opaque
)
798 qemu_mod_timer(icount_vm_timer
,
799 qemu_get_clock(vm_clock
) + QEMU_TIMER_BASE
/ 10);
803 static void init_icount_adjust(void)
805 /* Have both realtime and virtual time triggers for speed adjustment.
806 The realtime trigger catches emulated time passing too slowly,
807 the virtual time trigger catches emulated time passing too fast.
808 Realtime triggers occur even when idle, so use them less frequently
810 icount_rt_timer
= qemu_new_timer(rt_clock
, icount_adjust_rt
, NULL
);
811 qemu_mod_timer(icount_rt_timer
,
812 qemu_get_clock(rt_clock
) + 1000);
813 icount_vm_timer
= qemu_new_timer(vm_clock
, icount_adjust_vm
, NULL
);
814 qemu_mod_timer(icount_vm_timer
,
815 qemu_get_clock(vm_clock
) + QEMU_TIMER_BASE
/ 10);
818 static struct qemu_alarm_timer alarm_timers
[] = {
821 {"dynticks", ALARM_FLAG_DYNTICKS
, dynticks_start_timer
,
822 dynticks_stop_timer
, dynticks_rearm_timer
, NULL
},
823 /* HPET - if available - is preferred */
824 {"hpet", 0, hpet_start_timer
, hpet_stop_timer
, NULL
, NULL
},
825 /* ...otherwise try RTC */
826 {"rtc", 0, rtc_start_timer
, rtc_stop_timer
, NULL
, NULL
},
828 {"unix", 0, unix_start_timer
, unix_stop_timer
, NULL
, NULL
},
830 {"dynticks", ALARM_FLAG_DYNTICKS
, win32_start_timer
,
831 win32_stop_timer
, win32_rearm_timer
, &alarm_win32_data
},
832 {"win32", 0, win32_start_timer
,
833 win32_stop_timer
, NULL
, &alarm_win32_data
},
838 static void show_available_alarms(void)
842 printf("Available alarm timers, in order of precedence:\n");
843 for (i
= 0; alarm_timers
[i
].name
; i
++)
844 printf("%s\n", alarm_timers
[i
].name
);
847 static void configure_alarms(char const *opt
)
851 int count
= ARRAY_SIZE(alarm_timers
) - 1;
854 struct qemu_alarm_timer tmp
;
856 if (!strcmp(opt
, "?")) {
857 show_available_alarms();
861 arg
= qemu_strdup(opt
);
863 /* Reorder the array */
864 name
= strtok(arg
, ",");
866 for (i
= 0; i
< count
&& alarm_timers
[i
].name
; i
++) {
867 if (!strcmp(alarm_timers
[i
].name
, name
))
872 fprintf(stderr
, "Unknown clock %s\n", name
);
881 tmp
= alarm_timers
[i
];
882 alarm_timers
[i
] = alarm_timers
[cur
];
883 alarm_timers
[cur
] = tmp
;
887 name
= strtok(NULL
, ",");
893 /* Disable remaining timers */
894 for (i
= cur
; i
< count
; i
++)
895 alarm_timers
[i
].name
= NULL
;
897 show_available_alarms();
905 static QEMUTimer
*active_timers
[2];
907 static QEMUClock
*qemu_new_clock(int type
)
910 clock
= qemu_mallocz(sizeof(QEMUClock
));
915 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
919 ts
= qemu_mallocz(sizeof(QEMUTimer
));
926 void qemu_free_timer(QEMUTimer
*ts
)
931 /* stop a timer, but do not dealloc it */
932 void qemu_del_timer(QEMUTimer
*ts
)
936 /* NOTE: this code must be signal safe because
937 qemu_timer_expired() can be called from a signal. */
938 pt
= &active_timers
[ts
->clock
->type
];
951 /* modify the current timer so that it will be fired when current_time
952 >= expire_time. The corresponding callback will be called. */
953 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
959 /* add the timer in the sorted list */
960 /* NOTE: this code must be signal safe because
961 qemu_timer_expired() can be called from a signal. */
962 pt
= &active_timers
[ts
->clock
->type
];
967 if (t
->expire_time
> expire_time
)
971 ts
->expire_time
= expire_time
;
975 /* Rearm if necessary */
976 if (pt
== &active_timers
[ts
->clock
->type
]) {
977 if ((alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) == 0) {
978 qemu_rearm_alarm_timer(alarm_timer
);
980 /* Interrupt execution to force deadline recalculation. */
986 int qemu_timer_pending(QEMUTimer
*ts
)
989 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
996 int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
1000 return (timer_head
->expire_time
<= current_time
);
1003 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
1009 if (!ts
|| ts
->expire_time
> current_time
)
1011 /* remove timer from the list before calling the callback */
1012 *ptimer_head
= ts
->next
;
1015 /* run the callback (the timer list can be modified) */
1020 int64_t qemu_get_clock(QEMUClock
*clock
)
1022 switch(clock
->type
) {
1023 case QEMU_TIMER_REALTIME
:
1024 return get_clock() / 1000000;
1026 case QEMU_TIMER_VIRTUAL
:
1028 return cpu_get_icount();
1030 return cpu_get_clock();
1035 static void init_timers(void)
1038 ticks_per_sec
= QEMU_TIMER_BASE
;
1039 rt_clock
= qemu_new_clock(QEMU_TIMER_REALTIME
);
1040 vm_clock
= qemu_new_clock(QEMU_TIMER_VIRTUAL
);
1044 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1046 uint64_t expire_time
;
1048 if (qemu_timer_pending(ts
)) {
1049 expire_time
= ts
->expire_time
;
1053 qemu_put_be64(f
, expire_time
);
1056 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
1058 uint64_t expire_time
;
1060 expire_time
= qemu_get_be64(f
);
1061 if (expire_time
!= -1) {
1062 qemu_mod_timer(ts
, expire_time
);
1068 static void timer_save(QEMUFile
*f
, void *opaque
)
1070 if (cpu_ticks_enabled
) {
1071 hw_error("cannot save state if virtual timers are running");
1073 qemu_put_be64(f
, cpu_ticks_offset
);
1074 qemu_put_be64(f
, ticks_per_sec
);
1075 qemu_put_be64(f
, cpu_clock_offset
);
1078 static int timer_load(QEMUFile
*f
, void *opaque
, int version_id
)
1080 if (version_id
!= 1 && version_id
!= 2)
1082 if (cpu_ticks_enabled
) {
1085 cpu_ticks_offset
=qemu_get_be64(f
);
1086 ticks_per_sec
=qemu_get_be64(f
);
1087 if (version_id
== 2) {
1088 cpu_clock_offset
=qemu_get_be64(f
);
1093 static void qemu_event_increment(void);
1096 static void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
1097 DWORD_PTR dwUser
, DWORD_PTR dw1
,
1100 static void host_alarm_handler(int host_signum
)
1104 #define DISP_FREQ 1000
1106 static int64_t delta_min
= INT64_MAX
;
1107 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
1109 ti
= qemu_get_clock(vm_clock
);
1110 if (last_clock
!= 0) {
1111 delta
= ti
- last_clock
;
1112 if (delta
< delta_min
)
1114 if (delta
> delta_max
)
1117 if (++count
== DISP_FREQ
) {
1118 printf("timer: min=%" PRId64
" us max=%" PRId64
" us avg=%" PRId64
" us avg_freq=%0.3f Hz\n",
1119 muldiv64(delta_min
, 1000000, ticks_per_sec
),
1120 muldiv64(delta_max
, 1000000, ticks_per_sec
),
1121 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, ticks_per_sec
),
1122 (double)ticks_per_sec
/ ((double)delta_cum
/ DISP_FREQ
));
1124 delta_min
= INT64_MAX
;
1132 if (alarm_has_dynticks(alarm_timer
) ||
1134 qemu_timer_expired(active_timers
[QEMU_TIMER_VIRTUAL
],
1135 qemu_get_clock(vm_clock
))) ||
1136 qemu_timer_expired(active_timers
[QEMU_TIMER_REALTIME
],
1137 qemu_get_clock(rt_clock
))) {
1138 qemu_event_increment();
1139 if (alarm_timer
) alarm_timer
->flags
|= ALARM_FLAG_EXPIRED
;
1141 #ifndef CONFIG_IOTHREAD
1143 /* stop the currently executing cpu because a timer occured */
1147 timer_alarm_pending
= 1;
1148 qemu_notify_event();
1152 static int64_t qemu_next_deadline(void)
1156 if (active_timers
[QEMU_TIMER_VIRTUAL
]) {
1157 delta
= active_timers
[QEMU_TIMER_VIRTUAL
]->expire_time
-
1158 qemu_get_clock(vm_clock
);
1160 /* To avoid problems with overflow limit this to 2^32. */
1170 #if defined(__linux__) || defined(_WIN32)
1171 static uint64_t qemu_next_deadline_dyntick(void)
1179 delta
= (qemu_next_deadline() + 999) / 1000;
1181 if (active_timers
[QEMU_TIMER_REALTIME
]) {
1182 rtdelta
= (active_timers
[QEMU_TIMER_REALTIME
]->expire_time
-
1183 qemu_get_clock(rt_clock
))*1000;
1184 if (rtdelta
< delta
)
1188 if (delta
< MIN_TIMER_REARM_US
)
1189 delta
= MIN_TIMER_REARM_US
;
1197 /* Sets a specific flag */
1198 static int fcntl_setfl(int fd
, int flag
)
1202 flags
= fcntl(fd
, F_GETFL
);
1206 if (fcntl(fd
, F_SETFL
, flags
| flag
) == -1)
1212 #if defined(__linux__)
1214 #define RTC_FREQ 1024
1216 static void enable_sigio_timer(int fd
)
1218 struct sigaction act
;
1221 sigfillset(&act
.sa_mask
);
1223 act
.sa_handler
= host_alarm_handler
;
1225 sigaction(SIGIO
, &act
, NULL
);
1226 fcntl_setfl(fd
, O_ASYNC
);
1227 fcntl(fd
, F_SETOWN
, getpid());
1230 static int hpet_start_timer(struct qemu_alarm_timer
*t
)
1232 struct hpet_info info
;
1235 fd
= open("/dev/hpet", O_RDONLY
);
1240 r
= ioctl(fd
, HPET_IRQFREQ
, RTC_FREQ
);
1242 fprintf(stderr
, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1243 "error, but for better emulation accuracy type:\n"
1244 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1248 /* Check capabilities */
1249 r
= ioctl(fd
, HPET_INFO
, &info
);
1253 /* Enable periodic mode */
1254 r
= ioctl(fd
, HPET_EPI
, 0);
1255 if (info
.hi_flags
&& (r
< 0))
1258 /* Enable interrupt */
1259 r
= ioctl(fd
, HPET_IE_ON
, 0);
1263 enable_sigio_timer(fd
);
1264 t
->priv
= (void *)(long)fd
;
1272 static void hpet_stop_timer(struct qemu_alarm_timer
*t
)
1274 int fd
= (long)t
->priv
;
1279 static int rtc_start_timer(struct qemu_alarm_timer
*t
)
1282 unsigned long current_rtc_freq
= 0;
1284 TFR(rtc_fd
= open("/dev/rtc", O_RDONLY
));
1287 ioctl(rtc_fd
, RTC_IRQP_READ
, ¤t_rtc_freq
);
1288 if (current_rtc_freq
!= RTC_FREQ
&&
1289 ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
1290 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1291 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1292 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1295 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
1301 enable_sigio_timer(rtc_fd
);
1303 t
->priv
= (void *)(long)rtc_fd
;
1308 static void rtc_stop_timer(struct qemu_alarm_timer
*t
)
1310 int rtc_fd
= (long)t
->priv
;
1315 static int dynticks_start_timer(struct qemu_alarm_timer
*t
)
1319 struct sigaction act
;
1321 sigfillset(&act
.sa_mask
);
1323 act
.sa_handler
= host_alarm_handler
;
1325 sigaction(SIGALRM
, &act
, NULL
);
1328 * Initialize ev struct to 0 to avoid valgrind complaining
1329 * about uninitialized data in timer_create call
1331 memset(&ev
, 0, sizeof(ev
));
1332 ev
.sigev_value
.sival_int
= 0;
1333 ev
.sigev_notify
= SIGEV_SIGNAL
;
1334 ev
.sigev_signo
= SIGALRM
;
1336 if (timer_create(CLOCK_REALTIME
, &ev
, &host_timer
)) {
1337 perror("timer_create");
1339 /* disable dynticks */
1340 fprintf(stderr
, "Dynamic Ticks disabled\n");
1345 t
->priv
= (void *)(long)host_timer
;
1350 static void dynticks_stop_timer(struct qemu_alarm_timer
*t
)
1352 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1354 timer_delete(host_timer
);
1357 static void dynticks_rearm_timer(struct qemu_alarm_timer
*t
)
1359 timer_t host_timer
= (timer_t
)(long)t
->priv
;
1360 struct itimerspec timeout
;
1361 int64_t nearest_delta_us
= INT64_MAX
;
1364 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1365 !active_timers
[QEMU_TIMER_VIRTUAL
])
1368 nearest_delta_us
= qemu_next_deadline_dyntick();
1370 /* check whether a timer is already running */
1371 if (timer_gettime(host_timer
, &timeout
)) {
1373 fprintf(stderr
, "Internal timer error: aborting\n");
1376 current_us
= timeout
.it_value
.tv_sec
* 1000000 + timeout
.it_value
.tv_nsec
/1000;
1377 if (current_us
&& current_us
<= nearest_delta_us
)
1380 timeout
.it_interval
.tv_sec
= 0;
1381 timeout
.it_interval
.tv_nsec
= 0; /* 0 for one-shot timer */
1382 timeout
.it_value
.tv_sec
= nearest_delta_us
/ 1000000;
1383 timeout
.it_value
.tv_nsec
= (nearest_delta_us
% 1000000) * 1000;
1384 if (timer_settime(host_timer
, 0 /* RELATIVE */, &timeout
, NULL
)) {
1386 fprintf(stderr
, "Internal timer error: aborting\n");
1391 #endif /* defined(__linux__) */
1393 static int unix_start_timer(struct qemu_alarm_timer
*t
)
1395 struct sigaction act
;
1396 struct itimerval itv
;
1400 sigfillset(&act
.sa_mask
);
1402 act
.sa_handler
= host_alarm_handler
;
1404 sigaction(SIGALRM
, &act
, NULL
);
1406 itv
.it_interval
.tv_sec
= 0;
1407 /* for i386 kernel 2.6 to get 1 ms */
1408 itv
.it_interval
.tv_usec
= 999;
1409 itv
.it_value
.tv_sec
= 0;
1410 itv
.it_value
.tv_usec
= 10 * 1000;
1412 err
= setitimer(ITIMER_REAL
, &itv
, NULL
);
1419 static void unix_stop_timer(struct qemu_alarm_timer
*t
)
1421 struct itimerval itv
;
1423 memset(&itv
, 0, sizeof(itv
));
1424 setitimer(ITIMER_REAL
, &itv
, NULL
);
1427 #endif /* !defined(_WIN32) */
1432 static int win32_start_timer(struct qemu_alarm_timer
*t
)
1435 struct qemu_alarm_win32
*data
= t
->priv
;
1438 memset(&tc
, 0, sizeof(tc
));
1439 timeGetDevCaps(&tc
, sizeof(tc
));
1441 if (data
->period
< tc
.wPeriodMin
)
1442 data
->period
= tc
.wPeriodMin
;
1444 timeBeginPeriod(data
->period
);
1446 flags
= TIME_CALLBACK_FUNCTION
;
1447 if (alarm_has_dynticks(t
))
1448 flags
|= TIME_ONESHOT
;
1450 flags
|= TIME_PERIODIC
;
1452 data
->timerId
= timeSetEvent(1, // interval (ms)
1453 data
->period
, // resolution
1454 host_alarm_handler
, // function
1455 (DWORD
)t
, // parameter
1458 if (!data
->timerId
) {
1459 perror("Failed to initialize win32 alarm timer");
1460 timeEndPeriod(data
->period
);
1467 static void win32_stop_timer(struct qemu_alarm_timer
*t
)
1469 struct qemu_alarm_win32
*data
= t
->priv
;
1471 timeKillEvent(data
->timerId
);
1472 timeEndPeriod(data
->period
);
1475 static void win32_rearm_timer(struct qemu_alarm_timer
*t
)
1477 struct qemu_alarm_win32
*data
= t
->priv
;
1478 uint64_t nearest_delta_us
;
1480 if (!active_timers
[QEMU_TIMER_REALTIME
] &&
1481 !active_timers
[QEMU_TIMER_VIRTUAL
])
1484 nearest_delta_us
= qemu_next_deadline_dyntick();
1485 nearest_delta_us
/= 1000;
1487 timeKillEvent(data
->timerId
);
1489 data
->timerId
= timeSetEvent(1,
1493 TIME_ONESHOT
| TIME_PERIODIC
);
1495 if (!data
->timerId
) {
1496 perror("Failed to re-arm win32 alarm timer");
1498 timeEndPeriod(data
->period
);
1505 static int init_timer_alarm(void)
1507 struct qemu_alarm_timer
*t
= NULL
;
1510 for (i
= 0; alarm_timers
[i
].name
; i
++) {
1511 t
= &alarm_timers
[i
];
1531 static void quit_timers(void)
1533 alarm_timer
->stop(alarm_timer
);
1537 /***********************************************************/
1538 /* host time/date access */
1539 void qemu_get_timedate(struct tm
*tm
, int offset
)
1546 if (rtc_date_offset
== -1) {
1550 ret
= localtime(&ti
);
1552 ti
-= rtc_date_offset
;
1556 memcpy(tm
, ret
, sizeof(struct tm
));
1559 int qemu_timedate_diff(struct tm
*tm
)
1563 if (rtc_date_offset
== -1)
1565 seconds
= mktimegm(tm
);
1567 seconds
= mktime(tm
);
1569 seconds
= mktimegm(tm
) + rtc_date_offset
;
1571 return seconds
- time(NULL
);
1575 static void socket_cleanup(void)
1580 static int socket_init(void)
1585 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
1587 err
= WSAGetLastError();
1588 fprintf(stderr
, "WSAStartup: %d\n", err
);
1591 atexit(socket_cleanup
);
1596 /***********************************************************/
1597 /* Bluetooth support */
1600 static struct HCIInfo
*hci_table
[MAX_NICS
];
1602 static struct bt_vlan_s
{
1603 struct bt_scatternet_s net
;
1605 struct bt_vlan_s
*next
;
1608 /* find or alloc a new bluetooth "VLAN" */
1609 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
1611 struct bt_vlan_s
**pvlan
, *vlan
;
1612 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1616 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
1618 pvlan
= &first_bt_vlan
;
1619 while (*pvlan
!= NULL
)
1620 pvlan
= &(*pvlan
)->next
;
1625 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
1629 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
1634 static struct HCIInfo null_hci
= {
1635 .cmd_send
= null_hci_send
,
1636 .sco_send
= null_hci_send
,
1637 .acl_send
= null_hci_send
,
1638 .bdaddr_set
= null_hci_addr_set
,
1641 struct HCIInfo
*qemu_next_hci(void)
1643 if (cur_hci
== nb_hcis
)
1646 return hci_table
[cur_hci
++];
1649 static struct HCIInfo
*hci_init(const char *str
)
1652 struct bt_scatternet_s
*vlan
= 0;
1654 if (!strcmp(str
, "null"))
1657 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
1659 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
1660 else if (!strncmp(str
, "hci", 3)) {
1663 if (!strncmp(str
+ 3, ",vlan=", 6)) {
1664 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
1669 vlan
= qemu_find_bt_vlan(0);
1671 return bt_new_hci(vlan
);
1674 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
1679 static int bt_hci_parse(const char *str
)
1681 struct HCIInfo
*hci
;
1684 if (nb_hcis
>= MAX_NICS
) {
1685 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
1689 hci
= hci_init(str
);
1698 bdaddr
.b
[5] = 0x56 + nb_hcis
;
1699 hci
->bdaddr_set(hci
, bdaddr
.b
);
1701 hci_table
[nb_hcis
++] = hci
;
1706 static void bt_vhci_add(int vlan_id
)
1708 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
1711 fprintf(stderr
, "qemu: warning: adding a VHCI to "
1712 "an empty scatternet %i\n", vlan_id
);
1714 bt_vhci_init(bt_new_hci(vlan
));
1717 static struct bt_device_s
*bt_device_add(const char *opt
)
1719 struct bt_scatternet_s
*vlan
;
1721 char *endp
= strstr(opt
, ",vlan=");
1722 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
1725 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
1728 vlan_id
= strtol(endp
+ 6, &endp
, 0);
1730 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
1735 vlan
= qemu_find_bt_vlan(vlan_id
);
1738 fprintf(stderr
, "qemu: warning: adding a slave device to "
1739 "an empty scatternet %i\n", vlan_id
);
1741 if (!strcmp(devname
, "keyboard"))
1742 return bt_keyboard_init(vlan
);
1744 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
1748 static int bt_parse(const char *opt
)
1750 const char *endp
, *p
;
1753 if (strstart(opt
, "hci", &endp
)) {
1754 if (!*endp
|| *endp
== ',') {
1756 if (!strstart(endp
, ",vlan=", 0))
1759 return bt_hci_parse(opt
);
1761 } else if (strstart(opt
, "vhci", &endp
)) {
1762 if (!*endp
|| *endp
== ',') {
1764 if (strstart(endp
, ",vlan=", &p
)) {
1765 vlan
= strtol(p
, (char **) &endp
, 0);
1767 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
1771 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
1780 } else if (strstart(opt
, "device:", &endp
))
1781 return !bt_device_add(endp
);
1783 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
1787 /***********************************************************/
1788 /* QEMU Block devices */
1790 #define HD_ALIAS "index=%d,media=disk"
1791 #define CDROM_ALIAS "index=2,media=cdrom"
1792 #define FD_ALIAS "index=%d,if=floppy"
1793 #define PFLASH_ALIAS "if=pflash"
1794 #define MTD_ALIAS "if=mtd"
1795 #define SD_ALIAS "index=0,if=sd"
1797 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
1804 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
1807 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, NULL
);
1809 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
1810 __FUNCTION__
, optstr
);
1814 qemu_opt_set(opts
, "file", file
);
1818 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
1822 /* seek interface, bus and unit */
1824 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1825 if (dinfo
->type
== type
&&
1826 dinfo
->bus
== bus
&&
1827 dinfo
->unit
== unit
)
1834 DriveInfo
*drive_get_by_id(const char *id
)
1838 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1839 if (strcmp(id
, dinfo
->id
))
1846 int drive_get_max_bus(BlockInterfaceType type
)
1852 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1853 if(dinfo
->type
== type
&&
1854 dinfo
->bus
> max_bus
)
1855 max_bus
= dinfo
->bus
;
1860 const char *drive_get_serial(BlockDriverState
*bdrv
)
1864 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1865 if (dinfo
->bdrv
== bdrv
)
1866 return dinfo
->serial
;
1872 BlockInterfaceErrorAction
drive_get_onerror(BlockDriverState
*bdrv
)
1876 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1877 if (dinfo
->bdrv
== bdrv
)
1878 return dinfo
->onerror
;
1881 return BLOCK_ERR_STOP_ENOSPC
;
1884 static void bdrv_format_print(void *opaque
, const char *name
)
1886 fprintf(stderr
, " %s", name
);
1889 void drive_uninit(BlockDriverState
*bdrv
)
1893 TAILQ_FOREACH(dinfo
, &drives
, next
) {
1894 if (dinfo
->bdrv
!= bdrv
)
1896 qemu_opts_del(dinfo
->opts
);
1897 TAILQ_REMOVE(&drives
, dinfo
, next
);
1903 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
1907 const char *file
= NULL
;
1910 const char *mediastr
= "";
1911 BlockInterfaceType type
;
1912 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
1913 int bus_id
, unit_id
;
1914 int cyls
, heads
, secs
, translation
;
1915 BlockDriver
*drv
= NULL
;
1916 QEMUMachine
*machine
= opaque
;
1921 int bdrv_flags
, onerror
;
1922 const char *devaddr
;
1928 translation
= BIOS_ATA_TRANSLATION_AUTO
;
1931 if (machine
&& machine
->use_scsi
) {
1933 max_devs
= MAX_SCSI_DEVS
;
1934 pstrcpy(devname
, sizeof(devname
), "scsi");
1937 max_devs
= MAX_IDE_DEVS
;
1938 pstrcpy(devname
, sizeof(devname
), "ide");
1942 /* extract parameters */
1943 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
1944 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
1945 index
= qemu_opt_get_number(opts
, "index", -1);
1947 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
1948 heads
= qemu_opt_get_number(opts
, "heads", 0);
1949 secs
= qemu_opt_get_number(opts
, "secs", 0);
1951 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
1953 file
= qemu_opt_get(opts
, "file");
1954 serial
= qemu_opt_get(opts
, "serial");
1956 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
1957 pstrcpy(devname
, sizeof(devname
), buf
);
1958 if (!strcmp(buf
, "ide")) {
1960 max_devs
= MAX_IDE_DEVS
;
1961 } else if (!strcmp(buf
, "scsi")) {
1963 max_devs
= MAX_SCSI_DEVS
;
1964 } else if (!strcmp(buf
, "floppy")) {
1967 } else if (!strcmp(buf
, "pflash")) {
1970 } else if (!strcmp(buf
, "mtd")) {
1973 } else if (!strcmp(buf
, "sd")) {
1976 } else if (!strcmp(buf
, "virtio")) {
1979 } else if (!strcmp(buf
, "xen")) {
1982 } else if (!strcmp(buf
, "none")) {
1986 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
1991 if (cyls
|| heads
|| secs
) {
1992 if (cyls
< 1 || cyls
> 16383) {
1993 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
1996 if (heads
< 1 || heads
> 16) {
1997 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
2000 if (secs
< 1 || secs
> 63) {
2001 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
2006 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
2009 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2013 if (!strcmp(buf
, "none"))
2014 translation
= BIOS_ATA_TRANSLATION_NONE
;
2015 else if (!strcmp(buf
, "lba"))
2016 translation
= BIOS_ATA_TRANSLATION_LBA
;
2017 else if (!strcmp(buf
, "auto"))
2018 translation
= BIOS_ATA_TRANSLATION_AUTO
;
2020 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
2025 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
2026 if (!strcmp(buf
, "disk")) {
2028 } else if (!strcmp(buf
, "cdrom")) {
2029 if (cyls
|| secs
|| heads
) {
2031 "qemu: '%s' invalid physical CHS format\n", buf
);
2034 media
= MEDIA_CDROM
;
2036 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
2041 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
2042 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
2044 else if (!strcmp(buf
, "writethrough"))
2046 else if (!strcmp(buf
, "writeback"))
2049 fprintf(stderr
, "qemu: invalid cache option\n");
2054 #ifdef CONFIG_LINUX_AIO
2055 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
2056 if (!strcmp(buf
, "threads"))
2058 else if (!strcmp(buf
, "native"))
2061 fprintf(stderr
, "qemu: invalid aio option\n");
2067 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
2068 if (strcmp(buf
, "?") == 0) {
2069 fprintf(stderr
, "qemu: Supported formats:");
2070 bdrv_iterate_format(bdrv_format_print
, NULL
);
2071 fprintf(stderr
, "\n");
2074 drv
= bdrv_find_format(buf
);
2076 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
2081 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2082 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
2083 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
2084 fprintf(stderr
, "werror is no supported by this format\n");
2087 if (!strcmp(buf
, "ignore"))
2088 onerror
= BLOCK_ERR_IGNORE
;
2089 else if (!strcmp(buf
, "enospc"))
2090 onerror
= BLOCK_ERR_STOP_ENOSPC
;
2091 else if (!strcmp(buf
, "stop"))
2092 onerror
= BLOCK_ERR_STOP_ANY
;
2093 else if (!strcmp(buf
, "report"))
2094 onerror
= BLOCK_ERR_REPORT
;
2096 fprintf(stderr
, "qemu: '%s' invalid write error action\n", buf
);
2101 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
2102 if (type
!= IF_VIRTIO
) {
2103 fprintf(stderr
, "addr is not supported\n");
2108 /* compute bus and unit according index */
2111 if (bus_id
!= 0 || unit_id
!= -1) {
2113 "qemu: index cannot be used with bus and unit\n");
2121 unit_id
= index
% max_devs
;
2122 bus_id
= index
/ max_devs
;
2126 /* if user doesn't specify a unit_id,
2127 * try to find the first free
2130 if (unit_id
== -1) {
2132 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2134 if (max_devs
&& unit_id
>= max_devs
) {
2135 unit_id
-= max_devs
;
2143 if (max_devs
&& unit_id
>= max_devs
) {
2144 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
2145 unit_id
, max_devs
- 1);
2150 * ignore multiple definitions
2153 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
2160 dinfo
= qemu_mallocz(sizeof(*dinfo
));
2161 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
2162 dinfo
->id
= qemu_strdup(buf
);
2164 /* no id supplied -> create one */
2165 dinfo
->id
= qemu_mallocz(32);
2166 if (type
== IF_IDE
|| type
== IF_SCSI
)
2167 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
2169 snprintf(dinfo
->id
, 32, "%s%i%s%i",
2170 devname
, bus_id
, mediastr
, unit_id
);
2172 snprintf(dinfo
->id
, 32, "%s%s%i",
2173 devname
, mediastr
, unit_id
);
2175 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
2176 dinfo
->devaddr
= devaddr
;
2178 dinfo
->bus
= bus_id
;
2179 dinfo
->unit
= unit_id
;
2180 dinfo
->onerror
= onerror
;
2183 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
2184 TAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
2193 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
2194 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
2198 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
2203 /* FIXME: This isn't really a floppy, but it's a reasonable
2206 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
2213 /* add virtio block device */
2214 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
2215 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
2216 qemu_opt_set(opts
, "drive", dinfo
->id
);
2218 qemu_opt_set(opts
, "addr", devaddr
);
2229 bdrv_flags
|= BDRV_O_SNAPSHOT
;
2230 cache
= 2; /* always use write-back with snapshot */
2232 if (cache
== 0) /* no caching */
2233 bdrv_flags
|= BDRV_O_NOCACHE
;
2234 else if (cache
== 2) /* write-back */
2235 bdrv_flags
|= BDRV_O_CACHE_WB
;
2238 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
2240 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
2243 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
2244 fprintf(stderr
, "qemu: could not open disk image %s\n",
2249 if (bdrv_key_required(dinfo
->bdrv
))
2255 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
2257 QEMUMachine
*machine
= opaque
;
2258 int fatal_error
= 0;
2260 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
2267 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
2269 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
2270 qemu_opt_set(opts
, "snapshot", "on");
2275 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
2277 boot_set_handler
= func
;
2278 boot_set_opaque
= opaque
;
2281 int qemu_boot_set(const char *boot_devices
)
2283 if (!boot_set_handler
) {
2286 return boot_set_handler(boot_set_opaque
, boot_devices
);
2289 static int parse_bootdevices(char *devices
)
2291 /* We just do some generic consistency checks */
2295 for (p
= devices
; *p
!= '\0'; p
++) {
2296 /* Allowed boot devices are:
2297 * a-b: floppy disk drives
2298 * c-f: IDE disk drives
2299 * g-m: machine implementation dependant drives
2300 * n-p: network devices
2301 * It's up to each machine implementation to check if the given boot
2302 * devices match the actual hardware implementation and firmware
2305 if (*p
< 'a' || *p
> 'p') {
2306 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
2309 if (bitmap
& (1 << (*p
- 'a'))) {
2310 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
2313 bitmap
|= 1 << (*p
- 'a');
2318 static void restore_boot_devices(void *opaque
)
2320 char *standard_boot_devices
= opaque
;
2322 qemu_boot_set(standard_boot_devices
);
2324 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
2325 qemu_free(standard_boot_devices
);
2328 static void numa_add(const char *optarg
)
2332 unsigned long long value
, endvalue
;
2335 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
2336 if (!strcmp(option
, "node")) {
2337 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
2338 nodenr
= nb_numa_nodes
;
2340 nodenr
= strtoull(option
, NULL
, 10);
2343 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
2344 node_mem
[nodenr
] = 0;
2346 value
= strtoull(option
, &endptr
, 0);
2348 case 0: case 'M': case 'm':
2355 node_mem
[nodenr
] = value
;
2357 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
2358 node_cpumask
[nodenr
] = 0;
2360 value
= strtoull(option
, &endptr
, 10);
2363 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
2365 if (*endptr
== '-') {
2366 endvalue
= strtoull(endptr
+1, &endptr
, 10);
2367 if (endvalue
>= 63) {
2370 "only 63 CPUs in NUMA mode supported.\n");
2372 value
= (1 << (endvalue
+ 1)) - (1 << value
);
2377 node_cpumask
[nodenr
] = value
;
2384 static void smp_parse(const char *optarg
)
2386 int smp
, sockets
= 0, threads
= 0, cores
= 0;
2390 smp
= strtoul(optarg
, &endptr
, 10);
2391 if (endptr
!= optarg
) {
2392 if (*endptr
== ',') {
2396 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
2397 sockets
= strtoull(option
, NULL
, 10);
2398 if (get_param_value(option
, 128, "cores", endptr
) != 0)
2399 cores
= strtoull(option
, NULL
, 10);
2400 if (get_param_value(option
, 128, "threads", endptr
) != 0)
2401 threads
= strtoull(option
, NULL
, 10);
2402 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
2403 max_cpus
= strtoull(option
, NULL
, 10);
2405 /* compute missing values, prefer sockets over cores over threads */
2406 if (smp
== 0 || sockets
== 0) {
2407 sockets
= sockets
> 0 ? sockets
: 1;
2408 cores
= cores
> 0 ? cores
: 1;
2409 threads
= threads
> 0 ? threads
: 1;
2411 smp
= cores
* threads
* sockets
;
2413 sockets
= smp
/ (cores
* threads
);
2417 threads
= threads
> 0 ? threads
: 1;
2418 cores
= smp
/ (sockets
* threads
);
2421 sockets
= smp
/ (cores
* threads
);
2423 threads
= smp
/ (cores
* sockets
);
2428 smp_cores
= cores
> 0 ? cores
: 1;
2429 smp_threads
= threads
> 0 ? threads
: 1;
2431 max_cpus
= smp_cpus
;
2434 /***********************************************************/
2437 static void usb_msd_password_cb(void *opaque
, int err
)
2439 USBDevice
*dev
= opaque
;
2442 usb_device_attach(dev
);
2444 dev
->info
->handle_destroy(dev
);
2453 .qdev
= "QEMU USB Mouse",
2456 .qdev
= "QEMU USB Tablet",
2459 .qdev
= "QEMU USB Keyboard",
2461 .name
= "wacom-tablet",
2462 .qdev
= "QEMU PenPartner Tablet",
2466 static int usb_device_add(const char *devname
, int is_hotplug
)
2469 USBBus
*bus
= usb_bus_find(-1 /* any */);
2470 USBDevice
*dev
= NULL
;
2476 /* simple devices which don't need extra care */
2477 for (i
= 0; i
< ARRAY_SIZE(usbdevs
); i
++) {
2478 if (strcmp(devname
, usbdevs
[i
].name
) != 0)
2480 dev
= usb_create_simple(bus
, usbdevs
[i
].qdev
);
2484 /* the other ones */
2485 if (strstart(devname
, "host:", &p
)) {
2486 dev
= usb_host_device_open(p
);
2487 } else if (strstart(devname
, "disk:", &p
)) {
2488 BlockDriverState
*bs
;
2490 dev
= usb_msd_init(p
);
2493 bs
= usb_msd_get_bdrv(dev
);
2494 if (bdrv_key_required(bs
)) {
2497 monitor_read_bdrv_key_start(cur_mon
, bs
, usb_msd_password_cb
,
2502 } else if (strstart(devname
, "serial:", &p
)) {
2503 dev
= usb_serial_init(p
);
2504 #ifdef CONFIG_BRLAPI
2505 } else if (!strcmp(devname
, "braille")) {
2506 dev
= usb_baum_init();
2508 } else if (strstart(devname
, "net:", &p
)) {
2511 if (net_client_init(NULL
, "nic", p
) < 0)
2513 nd_table
[nic
].model
= "usb";
2514 dev
= usb_net_init(&nd_table
[nic
]);
2515 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
2516 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
2517 bt_new_hci(qemu_find_bt_vlan(0)));
2528 static int usb_device_del(const char *devname
)
2533 if (strstart(devname
, "host:", &p
))
2534 return usb_host_device_close(p
);
2539 p
= strchr(devname
, '.');
2542 bus_num
= strtoul(devname
, NULL
, 0);
2543 addr
= strtoul(p
+ 1, NULL
, 0);
2545 return usb_device_delete_addr(bus_num
, addr
);
2548 static int usb_parse(const char *cmdline
)
2550 return usb_device_add(cmdline
, 0);
2553 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
2555 usb_device_add(qdict_get_str(qdict
, "devname"), 1);
2558 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
2560 usb_device_del(qdict_get_str(qdict
, "devname"));
2563 /***********************************************************/
2564 /* PCMCIA/Cardbus */
2566 static struct pcmcia_socket_entry_s
{
2567 PCMCIASocket
*socket
;
2568 struct pcmcia_socket_entry_s
*next
;
2569 } *pcmcia_sockets
= 0;
2571 void pcmcia_socket_register(PCMCIASocket
*socket
)
2573 struct pcmcia_socket_entry_s
*entry
;
2575 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
2576 entry
->socket
= socket
;
2577 entry
->next
= pcmcia_sockets
;
2578 pcmcia_sockets
= entry
;
2581 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
2583 struct pcmcia_socket_entry_s
*entry
, **ptr
;
2585 ptr
= &pcmcia_sockets
;
2586 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
2587 if (entry
->socket
== socket
) {
2593 void pcmcia_info(Monitor
*mon
)
2595 struct pcmcia_socket_entry_s
*iter
;
2597 if (!pcmcia_sockets
)
2598 monitor_printf(mon
, "No PCMCIA sockets\n");
2600 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
2601 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
2602 iter
->socket
->attached
? iter
->socket
->card_string
:
2606 /***********************************************************/
2607 /* register display */
2609 struct DisplayAllocator default_allocator
= {
2610 defaultallocator_create_displaysurface
,
2611 defaultallocator_resize_displaysurface
,
2612 defaultallocator_free_displaysurface
2615 void register_displaystate(DisplayState
*ds
)
2625 DisplayState
*get_displaystate(void)
2627 return display_state
;
2630 DisplayAllocator
*register_displayallocator(DisplayState
*ds
, DisplayAllocator
*da
)
2632 if(ds
->allocator
== &default_allocator
) ds
->allocator
= da
;
2633 return ds
->allocator
;
2638 static void dumb_display_init(void)
2640 DisplayState
*ds
= qemu_mallocz(sizeof(DisplayState
));
2641 ds
->allocator
= &default_allocator
;
2642 ds
->surface
= qemu_create_displaysurface(ds
, 640, 480);
2643 register_displaystate(ds
);
2646 /***********************************************************/
2649 typedef struct IOHandlerRecord
{
2651 IOCanRWHandler
*fd_read_poll
;
2653 IOHandler
*fd_write
;
2656 /* temporary data */
2658 struct IOHandlerRecord
*next
;
2661 static IOHandlerRecord
*first_io_handler
;
2663 /* XXX: fd_read_poll should be suppressed, but an API change is
2664 necessary in the character devices to suppress fd_can_read(). */
2665 int qemu_set_fd_handler2(int fd
,
2666 IOCanRWHandler
*fd_read_poll
,
2668 IOHandler
*fd_write
,
2671 IOHandlerRecord
**pioh
, *ioh
;
2673 if (!fd_read
&& !fd_write
) {
2674 pioh
= &first_io_handler
;
2679 if (ioh
->fd
== fd
) {
2686 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
2690 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
2691 ioh
->next
= first_io_handler
;
2692 first_io_handler
= ioh
;
2695 ioh
->fd_read_poll
= fd_read_poll
;
2696 ioh
->fd_read
= fd_read
;
2697 ioh
->fd_write
= fd_write
;
2698 ioh
->opaque
= opaque
;
2704 int qemu_set_fd_handler(int fd
,
2706 IOHandler
*fd_write
,
2709 return qemu_set_fd_handler2(fd
, NULL
, fd_read
, fd_write
, opaque
);
2713 /***********************************************************/
2714 /* Polling handling */
2716 typedef struct PollingEntry
{
2719 struct PollingEntry
*next
;
2722 static PollingEntry
*first_polling_entry
;
2724 int qemu_add_polling_cb(PollingFunc
*func
, void *opaque
)
2726 PollingEntry
**ppe
, *pe
;
2727 pe
= qemu_mallocz(sizeof(PollingEntry
));
2729 pe
->opaque
= opaque
;
2730 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
);
2735 void qemu_del_polling_cb(PollingFunc
*func
, void *opaque
)
2737 PollingEntry
**ppe
, *pe
;
2738 for(ppe
= &first_polling_entry
; *ppe
!= NULL
; ppe
= &(*ppe
)->next
) {
2740 if (pe
->func
== func
&& pe
->opaque
== opaque
) {
2748 /***********************************************************/
2749 /* Wait objects support */
2750 typedef struct WaitObjects
{
2752 HANDLE events
[MAXIMUM_WAIT_OBJECTS
+ 1];
2753 WaitObjectFunc
*func
[MAXIMUM_WAIT_OBJECTS
+ 1];
2754 void *opaque
[MAXIMUM_WAIT_OBJECTS
+ 1];
2757 static WaitObjects wait_objects
= {0};
2759 int qemu_add_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2761 WaitObjects
*w
= &wait_objects
;
2763 if (w
->num
>= MAXIMUM_WAIT_OBJECTS
)
2765 w
->events
[w
->num
] = handle
;
2766 w
->func
[w
->num
] = func
;
2767 w
->opaque
[w
->num
] = opaque
;
2772 void qemu_del_wait_object(HANDLE handle
, WaitObjectFunc
*func
, void *opaque
)
2775 WaitObjects
*w
= &wait_objects
;
2778 for (i
= 0; i
< w
->num
; i
++) {
2779 if (w
->events
[i
] == handle
)
2782 w
->events
[i
] = w
->events
[i
+ 1];
2783 w
->func
[i
] = w
->func
[i
+ 1];
2784 w
->opaque
[i
] = w
->opaque
[i
+ 1];
2792 /***********************************************************/
2793 /* ram save/restore */
2795 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2796 #define RAM_SAVE_FLAG_COMPRESS 0x02
2797 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2798 #define RAM_SAVE_FLAG_PAGE 0x08
2799 #define RAM_SAVE_FLAG_EOS 0x10
2801 static int is_dup_page(uint8_t *page
, uint8_t ch
)
2803 uint32_t val
= ch
<< 24 | ch
<< 16 | ch
<< 8 | ch
;
2804 uint32_t *array
= (uint32_t *)page
;
2807 for (i
= 0; i
< (TARGET_PAGE_SIZE
/ 4); i
++) {
2808 if (array
[i
] != val
)
2815 static int ram_save_block(QEMUFile
*f
)
2817 static ram_addr_t current_addr
= 0;
2818 ram_addr_t saved_addr
= current_addr
;
2819 ram_addr_t addr
= 0;
2822 while (addr
< last_ram_offset
) {
2823 if (cpu_physical_memory_get_dirty(current_addr
, MIGRATION_DIRTY_FLAG
)) {
2826 cpu_physical_memory_reset_dirty(current_addr
,
2827 current_addr
+ TARGET_PAGE_SIZE
,
2828 MIGRATION_DIRTY_FLAG
);
2830 p
= qemu_get_ram_ptr(current_addr
);
2832 if (is_dup_page(p
, *p
)) {
2833 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_COMPRESS
);
2834 qemu_put_byte(f
, *p
);
2836 qemu_put_be64(f
, current_addr
| RAM_SAVE_FLAG_PAGE
);
2837 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
2843 addr
+= TARGET_PAGE_SIZE
;
2844 current_addr
= (saved_addr
+ addr
) % last_ram_offset
;
2850 static uint64_t bytes_transferred
= 0;
2852 static ram_addr_t
ram_save_remaining(void)
2855 ram_addr_t count
= 0;
2857 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2858 if (cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2865 uint64_t ram_bytes_remaining(void)
2867 return ram_save_remaining() * TARGET_PAGE_SIZE
;
2870 uint64_t ram_bytes_transferred(void)
2872 return bytes_transferred
;
2875 uint64_t ram_bytes_total(void)
2877 return last_ram_offset
;
2880 static int ram_save_live(QEMUFile
*f
, int stage
, void *opaque
)
2883 uint64_t bytes_transferred_last
;
2885 uint64_t expected_time
= 0;
2887 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX
) != 0) {
2888 qemu_file_set_error(f
);
2893 /* Make sure all dirty bits are set */
2894 for (addr
= 0; addr
< last_ram_offset
; addr
+= TARGET_PAGE_SIZE
) {
2895 if (!cpu_physical_memory_get_dirty(addr
, MIGRATION_DIRTY_FLAG
))
2896 cpu_physical_memory_set_dirty(addr
);
2899 /* Enable dirty memory tracking */
2900 cpu_physical_memory_set_dirty_tracking(1);
2902 qemu_put_be64(f
, last_ram_offset
| RAM_SAVE_FLAG_MEM_SIZE
);
2905 bytes_transferred_last
= bytes_transferred
;
2906 bwidth
= get_clock();
2908 while (!qemu_file_rate_limit(f
)) {
2911 ret
= ram_save_block(f
);
2912 bytes_transferred
+= ret
* TARGET_PAGE_SIZE
;
2913 if (ret
== 0) /* no more blocks */
2917 bwidth
= get_clock() - bwidth
;
2918 bwidth
= (bytes_transferred
- bytes_transferred_last
) / bwidth
;
2920 /* if we haven't transferred anything this round, force expected_time to a
2921 * a very high value, but without crashing */
2925 /* try transferring iterative blocks of memory */
2929 /* flush all remaining blocks regardless of rate limiting */
2930 while (ram_save_block(f
) != 0) {
2931 bytes_transferred
+= TARGET_PAGE_SIZE
;
2933 cpu_physical_memory_set_dirty_tracking(0);
2936 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
2938 expected_time
= ram_save_remaining() * TARGET_PAGE_SIZE
/ bwidth
;
2940 return (stage
== 2) && (expected_time
<= migrate_max_downtime());
2943 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
2948 if (version_id
!= 3)
2952 addr
= qemu_get_be64(f
);
2954 flags
= addr
& ~TARGET_PAGE_MASK
;
2955 addr
&= TARGET_PAGE_MASK
;
2957 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
2958 if (addr
!= last_ram_offset
)
2962 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
2963 uint8_t ch
= qemu_get_byte(f
);
2964 memset(qemu_get_ram_ptr(addr
), ch
, TARGET_PAGE_SIZE
);
2967 (!kvm_enabled() || kvm_has_sync_mmu())) {
2968 madvise(qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
, MADV_DONTNEED
);
2971 } else if (flags
& RAM_SAVE_FLAG_PAGE
)
2972 qemu_get_buffer(f
, qemu_get_ram_ptr(addr
), TARGET_PAGE_SIZE
);
2973 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
2978 void qemu_service_io(void)
2980 qemu_notify_event();
2983 /***********************************************************/
2984 /* bottom halves (can be seen as timers which expire ASAP) */
2995 static QEMUBH
*first_bh
= NULL
;
2997 QEMUBH
*qemu_bh_new(QEMUBHFunc
*cb
, void *opaque
)
3000 bh
= qemu_mallocz(sizeof(QEMUBH
));
3002 bh
->opaque
= opaque
;
3003 bh
->next
= first_bh
;
3008 int qemu_bh_poll(void)
3014 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3015 if (!bh
->deleted
&& bh
->scheduled
) {
3024 /* remove deleted bhs */
3038 void qemu_bh_schedule_idle(QEMUBH
*bh
)
3046 void qemu_bh_schedule(QEMUBH
*bh
)
3052 /* stop the currently executing CPU to execute the BH ASAP */
3053 qemu_notify_event();
3056 void qemu_bh_cancel(QEMUBH
*bh
)
3061 void qemu_bh_delete(QEMUBH
*bh
)
3067 static void qemu_bh_update_timeout(int *timeout
)
3071 for (bh
= first_bh
; bh
; bh
= bh
->next
) {
3072 if (!bh
->deleted
&& bh
->scheduled
) {
3074 /* idle bottom halves will be polled at least
3076 *timeout
= MIN(10, *timeout
);
3078 /* non-idle bottom halves will be executed
3087 /***********************************************************/
3088 /* machine registration */
3090 static QEMUMachine
*first_machine
= NULL
;
3091 QEMUMachine
*current_machine
= NULL
;
3093 int qemu_register_machine(QEMUMachine
*m
)
3096 pm
= &first_machine
;
3104 static QEMUMachine
*find_machine(const char *name
)
3108 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3109 if (!strcmp(m
->name
, name
))
3111 if (m
->alias
&& !strcmp(m
->alias
, name
))
3117 static QEMUMachine
*find_default_machine(void)
3121 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3122 if (m
->is_default
) {
3129 /***********************************************************/
3130 /* main execution loop */
3132 static void gui_update(void *opaque
)
3134 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3135 DisplayState
*ds
= opaque
;
3136 DisplayChangeListener
*dcl
= ds
->listeners
;
3140 while (dcl
!= NULL
) {
3141 if (dcl
->gui_timer_interval
&&
3142 dcl
->gui_timer_interval
< interval
)
3143 interval
= dcl
->gui_timer_interval
;
3146 qemu_mod_timer(ds
->gui_timer
, interval
+ qemu_get_clock(rt_clock
));
3149 static void nographic_update(void *opaque
)
3151 uint64_t interval
= GUI_REFRESH_INTERVAL
;
3153 qemu_mod_timer(nographic_timer
, interval
+ qemu_get_clock(rt_clock
));
3156 struct vm_change_state_entry
{
3157 VMChangeStateHandler
*cb
;
3159 LIST_ENTRY (vm_change_state_entry
) entries
;
3162 static LIST_HEAD(vm_change_state_head
, vm_change_state_entry
) vm_change_state_head
;
3164 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
3167 VMChangeStateEntry
*e
;
3169 e
= qemu_mallocz(sizeof (*e
));
3173 LIST_INSERT_HEAD(&vm_change_state_head
, e
, entries
);
3177 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
3179 LIST_REMOVE (e
, entries
);
3183 static void vm_state_notify(int running
, int reason
)
3185 VMChangeStateEntry
*e
;
3187 for (e
= vm_change_state_head
.lh_first
; e
; e
= e
->entries
.le_next
) {
3188 e
->cb(e
->opaque
, running
, reason
);
3192 static void resume_all_vcpus(void);
3193 static void pause_all_vcpus(void);
3200 vm_state_notify(1, 0);
3201 qemu_rearm_alarm_timer(alarm_timer
);
3206 /* reset/shutdown handler */
3208 typedef struct QEMUResetEntry
{
3209 TAILQ_ENTRY(QEMUResetEntry
) entry
;
3210 QEMUResetHandler
*func
;
3214 static TAILQ_HEAD(reset_handlers
, QEMUResetEntry
) reset_handlers
=
3215 TAILQ_HEAD_INITIALIZER(reset_handlers
);
3216 static int reset_requested
;
3217 static int shutdown_requested
;
3218 static int powerdown_requested
;
3219 static int debug_requested
;
3220 static int vmstop_requested
;
3222 int qemu_shutdown_requested(void)
3224 int r
= shutdown_requested
;
3225 shutdown_requested
= 0;
3229 int qemu_reset_requested(void)
3231 int r
= reset_requested
;
3232 reset_requested
= 0;
3236 int qemu_powerdown_requested(void)
3238 int r
= powerdown_requested
;
3239 powerdown_requested
= 0;
3243 static int qemu_debug_requested(void)
3245 int r
= debug_requested
;
3246 debug_requested
= 0;
3250 static int qemu_vmstop_requested(void)
3252 int r
= vmstop_requested
;
3253 vmstop_requested
= 0;
3257 static void do_vm_stop(int reason
)
3260 cpu_disable_ticks();
3263 vm_state_notify(0, reason
);
3267 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
3269 QEMUResetEntry
*re
= qemu_mallocz(sizeof(QEMUResetEntry
));
3272 re
->opaque
= opaque
;
3273 TAILQ_INSERT_TAIL(&reset_handlers
, re
, entry
);
3276 void qemu_unregister_reset(QEMUResetHandler
*func
, void *opaque
)
3280 TAILQ_FOREACH(re
, &reset_handlers
, entry
) {
3281 if (re
->func
== func
&& re
->opaque
== opaque
) {
3282 TAILQ_REMOVE(&reset_handlers
, re
, entry
);
3289 void qemu_system_reset(void)
3291 QEMUResetEntry
*re
, *nre
;
3293 /* reset all devices */
3294 TAILQ_FOREACH_SAFE(re
, &reset_handlers
, entry
, nre
) {
3295 re
->func(re
->opaque
);
3299 void qemu_system_reset_request(void)
3302 shutdown_requested
= 1;
3304 reset_requested
= 1;
3306 qemu_notify_event();
3309 void qemu_system_shutdown_request(void)
3311 shutdown_requested
= 1;
3312 qemu_notify_event();
3315 void qemu_system_powerdown_request(void)
3317 powerdown_requested
= 1;
3318 qemu_notify_event();
3321 #ifdef CONFIG_IOTHREAD
3322 static void qemu_system_vmstop_request(int reason
)
3324 vmstop_requested
= reason
;
3325 qemu_notify_event();
3330 static int io_thread_fd
= -1;
3332 static void qemu_event_increment(void)
3334 static const char byte
= 0;
3336 if (io_thread_fd
== -1)
3339 write(io_thread_fd
, &byte
, sizeof(byte
));
3342 static void qemu_event_read(void *opaque
)
3344 int fd
= (unsigned long)opaque
;
3347 /* Drain the notify pipe */
3350 len
= read(fd
, buffer
, sizeof(buffer
));
3351 } while ((len
== -1 && errno
== EINTR
) || len
> 0);
3354 static int qemu_event_init(void)
3363 err
= fcntl_setfl(fds
[0], O_NONBLOCK
);
3367 err
= fcntl_setfl(fds
[1], O_NONBLOCK
);
3371 qemu_set_fd_handler2(fds
[0], NULL
, qemu_event_read
, NULL
,
3372 (void *)(unsigned long)fds
[0]);
3374 io_thread_fd
= fds
[1];
3383 HANDLE qemu_event_handle
;
3385 static void dummy_event_handler(void *opaque
)
3389 static int qemu_event_init(void)
3391 qemu_event_handle
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
3392 if (!qemu_event_handle
) {
3393 perror("Failed CreateEvent");
3396 qemu_add_wait_object(qemu_event_handle
, dummy_event_handler
, NULL
);
3400 static void qemu_event_increment(void)
3402 SetEvent(qemu_event_handle
);
3406 static int cpu_can_run(CPUState
*env
)
3415 #ifndef CONFIG_IOTHREAD
3416 static int qemu_init_main_loop(void)
3418 return qemu_event_init();
3421 void qemu_init_vcpu(void *_env
)
3423 CPUState
*env
= _env
;
3427 env
->nr_cores
= smp_cores
;
3428 env
->nr_threads
= smp_threads
;
3432 int qemu_cpu_self(void *env
)
3437 static void resume_all_vcpus(void)
3441 static void pause_all_vcpus(void)
3445 void qemu_cpu_kick(void *env
)
3450 void qemu_notify_event(void)
3452 CPUState
*env
= cpu_single_env
;
3459 #define qemu_mutex_lock_iothread() do { } while (0)
3460 #define qemu_mutex_unlock_iothread() do { } while (0)
3462 void vm_stop(int reason
)
3467 #else /* CONFIG_IOTHREAD */
3469 #include "qemu-thread.h"
3471 QemuMutex qemu_global_mutex
;
3472 static QemuMutex qemu_fair_mutex
;
3474 static QemuThread io_thread
;
3476 static QemuThread
*tcg_cpu_thread
;
3477 static QemuCond
*tcg_halt_cond
;
3479 static int qemu_system_ready
;
3481 static QemuCond qemu_cpu_cond
;
3483 static QemuCond qemu_system_cond
;
3484 static QemuCond qemu_pause_cond
;
3486 static void block_io_signals(void);
3487 static void unblock_io_signals(void);
3488 static int tcg_has_work(void);
3490 static int qemu_init_main_loop(void)
3494 ret
= qemu_event_init();
3498 qemu_cond_init(&qemu_pause_cond
);
3499 qemu_mutex_init(&qemu_fair_mutex
);
3500 qemu_mutex_init(&qemu_global_mutex
);
3501 qemu_mutex_lock(&qemu_global_mutex
);
3503 unblock_io_signals();
3504 qemu_thread_self(&io_thread
);
3509 static void qemu_wait_io_event(CPUState
*env
)
3511 while (!tcg_has_work())
3512 qemu_cond_timedwait(env
->halt_cond
, &qemu_global_mutex
, 1000);
3514 qemu_mutex_unlock(&qemu_global_mutex
);
3517 * Users of qemu_global_mutex can be starved, having no chance
3518 * to acquire it since this path will get to it first.
3519 * So use another lock to provide fairness.
3521 qemu_mutex_lock(&qemu_fair_mutex
);
3522 qemu_mutex_unlock(&qemu_fair_mutex
);
3524 qemu_mutex_lock(&qemu_global_mutex
);
3528 qemu_cond_signal(&qemu_pause_cond
);
3532 static int qemu_cpu_exec(CPUState
*env
);
3534 static void *kvm_cpu_thread_fn(void *arg
)
3536 CPUState
*env
= arg
;
3539 qemu_thread_self(env
->thread
);
3543 /* signal CPU creation */
3544 qemu_mutex_lock(&qemu_global_mutex
);
3546 qemu_cond_signal(&qemu_cpu_cond
);
3548 /* and wait for machine initialization */
3549 while (!qemu_system_ready
)
3550 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3553 if (cpu_can_run(env
))
3555 qemu_wait_io_event(env
);
3561 static void tcg_cpu_exec(void);
3563 static void *tcg_cpu_thread_fn(void *arg
)
3565 CPUState
*env
= arg
;
3568 qemu_thread_self(env
->thread
);
3570 /* signal CPU creation */
3571 qemu_mutex_lock(&qemu_global_mutex
);
3572 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
3574 qemu_cond_signal(&qemu_cpu_cond
);
3576 /* and wait for machine initialization */
3577 while (!qemu_system_ready
)
3578 qemu_cond_timedwait(&qemu_system_cond
, &qemu_global_mutex
, 100);
3582 qemu_wait_io_event(cur_cpu
);
3588 void qemu_cpu_kick(void *_env
)
3590 CPUState
*env
= _env
;
3591 qemu_cond_broadcast(env
->halt_cond
);
3593 qemu_thread_signal(env
->thread
, SIGUSR1
);
3596 int qemu_cpu_self(void *env
)
3598 return (cpu_single_env
!= NULL
);
3601 static void cpu_signal(int sig
)
3604 cpu_exit(cpu_single_env
);
3607 static void block_io_signals(void)
3610 struct sigaction sigact
;
3613 sigaddset(&set
, SIGUSR2
);
3614 sigaddset(&set
, SIGIO
);
3615 sigaddset(&set
, SIGALRM
);
3616 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3619 sigaddset(&set
, SIGUSR1
);
3620 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3622 memset(&sigact
, 0, sizeof(sigact
));
3623 sigact
.sa_handler
= cpu_signal
;
3624 sigaction(SIGUSR1
, &sigact
, NULL
);
3627 static void unblock_io_signals(void)
3632 sigaddset(&set
, SIGUSR2
);
3633 sigaddset(&set
, SIGIO
);
3634 sigaddset(&set
, SIGALRM
);
3635 pthread_sigmask(SIG_UNBLOCK
, &set
, NULL
);
3638 sigaddset(&set
, SIGUSR1
);
3639 pthread_sigmask(SIG_BLOCK
, &set
, NULL
);
3642 static void qemu_signal_lock(unsigned int msecs
)
3644 qemu_mutex_lock(&qemu_fair_mutex
);
3646 while (qemu_mutex_trylock(&qemu_global_mutex
)) {
3647 qemu_thread_signal(tcg_cpu_thread
, SIGUSR1
);
3648 if (!qemu_mutex_timedlock(&qemu_global_mutex
, msecs
))
3651 qemu_mutex_unlock(&qemu_fair_mutex
);
3654 static void qemu_mutex_lock_iothread(void)
3656 if (kvm_enabled()) {
3657 qemu_mutex_lock(&qemu_fair_mutex
);
3658 qemu_mutex_lock(&qemu_global_mutex
);
3659 qemu_mutex_unlock(&qemu_fair_mutex
);
3661 qemu_signal_lock(100);
3664 static void qemu_mutex_unlock_iothread(void)
3666 qemu_mutex_unlock(&qemu_global_mutex
);
3669 static int all_vcpus_paused(void)
3671 CPUState
*penv
= first_cpu
;
3676 penv
= (CPUState
*)penv
->next_cpu
;
3682 static void pause_all_vcpus(void)
3684 CPUState
*penv
= first_cpu
;
3688 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3689 qemu_cpu_kick(penv
);
3690 penv
= (CPUState
*)penv
->next_cpu
;
3693 while (!all_vcpus_paused()) {
3694 qemu_cond_timedwait(&qemu_pause_cond
, &qemu_global_mutex
, 100);
3697 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3698 penv
= (CPUState
*)penv
->next_cpu
;
3703 static void resume_all_vcpus(void)
3705 CPUState
*penv
= first_cpu
;
3710 qemu_thread_signal(penv
->thread
, SIGUSR1
);
3711 qemu_cpu_kick(penv
);
3712 penv
= (CPUState
*)penv
->next_cpu
;
3716 static void tcg_init_vcpu(void *_env
)
3718 CPUState
*env
= _env
;
3719 /* share a single thread for all cpus with TCG */
3720 if (!tcg_cpu_thread
) {
3721 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3722 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3723 qemu_cond_init(env
->halt_cond
);
3724 qemu_thread_create(env
->thread
, tcg_cpu_thread_fn
, env
);
3725 while (env
->created
== 0)
3726 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3727 tcg_cpu_thread
= env
->thread
;
3728 tcg_halt_cond
= env
->halt_cond
;
3730 env
->thread
= tcg_cpu_thread
;
3731 env
->halt_cond
= tcg_halt_cond
;
3735 static void kvm_start_vcpu(CPUState
*env
)
3737 env
->thread
= qemu_mallocz(sizeof(QemuThread
));
3738 env
->halt_cond
= qemu_mallocz(sizeof(QemuCond
));
3739 qemu_cond_init(env
->halt_cond
);
3740 qemu_thread_create(env
->thread
, kvm_cpu_thread_fn
, env
);
3741 while (env
->created
== 0)
3742 qemu_cond_timedwait(&qemu_cpu_cond
, &qemu_global_mutex
, 100);
3745 void qemu_init_vcpu(void *_env
)
3747 CPUState
*env
= _env
;
3750 kvm_start_vcpu(env
);
3753 env
->nr_cores
= smp_cores
;
3754 env
->nr_threads
= smp_threads
;
3757 void qemu_notify_event(void)
3759 qemu_event_increment();
3762 void vm_stop(int reason
)
3765 qemu_thread_self(&me
);
3767 if (!qemu_thread_equal(&me
, &io_thread
)) {
3768 qemu_system_vmstop_request(reason
);
3770 * FIXME: should not return to device code in case
3771 * vm_stop() has been requested.
3773 if (cpu_single_env
) {
3774 cpu_exit(cpu_single_env
);
3775 cpu_single_env
->stop
= 1;
3786 static void host_main_loop_wait(int *timeout
)
3792 /* XXX: need to suppress polling by better using win32 events */
3794 for(pe
= first_polling_entry
; pe
!= NULL
; pe
= pe
->next
) {
3795 ret
|= pe
->func(pe
->opaque
);
3799 WaitObjects
*w
= &wait_objects
;
3801 ret
= WaitForMultipleObjects(w
->num
, w
->events
, FALSE
, *timeout
);
3802 if (WAIT_OBJECT_0
+ 0 <= ret
&& ret
<= WAIT_OBJECT_0
+ w
->num
- 1) {
3803 if (w
->func
[ret
- WAIT_OBJECT_0
])
3804 w
->func
[ret
- WAIT_OBJECT_0
](w
->opaque
[ret
- WAIT_OBJECT_0
]);
3806 /* Check for additional signaled events */
3807 for(i
= (ret
- WAIT_OBJECT_0
+ 1); i
< w
->num
; i
++) {
3809 /* Check if event is signaled */
3810 ret2
= WaitForSingleObject(w
->events
[i
], 0);
3811 if(ret2
== WAIT_OBJECT_0
) {
3813 w
->func
[i
](w
->opaque
[i
]);
3814 } else if (ret2
== WAIT_TIMEOUT
) {
3816 err
= GetLastError();
3817 fprintf(stderr
, "WaitForSingleObject error %d %d\n", i
, err
);
3820 } else if (ret
== WAIT_TIMEOUT
) {
3822 err
= GetLastError();
3823 fprintf(stderr
, "WaitForMultipleObjects error %d %d\n", ret
, err
);
3830 static void host_main_loop_wait(int *timeout
)
3835 void main_loop_wait(int timeout
)
3837 IOHandlerRecord
*ioh
;
3838 fd_set rfds
, wfds
, xfds
;
3842 qemu_bh_update_timeout(&timeout
);
3844 host_main_loop_wait(&timeout
);
3846 /* poll any events */
3847 /* XXX: separate device handlers from system ones */
3852 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3856 (!ioh
->fd_read_poll
||
3857 ioh
->fd_read_poll(ioh
->opaque
) != 0)) {
3858 FD_SET(ioh
->fd
, &rfds
);
3862 if (ioh
->fd_write
) {
3863 FD_SET(ioh
->fd
, &wfds
);
3869 tv
.tv_sec
= timeout
/ 1000;
3870 tv
.tv_usec
= (timeout
% 1000) * 1000;
3872 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
3874 qemu_mutex_unlock_iothread();
3875 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
3876 qemu_mutex_lock_iothread();
3878 IOHandlerRecord
**pioh
;
3880 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
3881 if (!ioh
->deleted
&& ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
3882 ioh
->fd_read(ioh
->opaque
);
3884 if (!ioh
->deleted
&& ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
3885 ioh
->fd_write(ioh
->opaque
);
3889 /* remove deleted IO handlers */
3890 pioh
= &first_io_handler
;
3901 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
3903 /* rearm timer, if not periodic */
3904 if (alarm_timer
->flags
& ALARM_FLAG_EXPIRED
) {
3905 alarm_timer
->flags
&= ~ALARM_FLAG_EXPIRED
;
3906 qemu_rearm_alarm_timer(alarm_timer
);
3909 /* vm time timers */
3911 if (!cur_cpu
|| likely(!(cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
)))
3912 qemu_run_timers(&active_timers
[QEMU_TIMER_VIRTUAL
],
3913 qemu_get_clock(vm_clock
));
3916 /* real time timers */
3917 qemu_run_timers(&active_timers
[QEMU_TIMER_REALTIME
],
3918 qemu_get_clock(rt_clock
));
3920 /* Check bottom-halves last in case any of the earlier events triggered
3926 static int qemu_cpu_exec(CPUState
*env
)
3929 #ifdef CONFIG_PROFILER
3933 #ifdef CONFIG_PROFILER
3934 ti
= profile_getclock();
3939 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
3940 env
->icount_decr
.u16
.low
= 0;
3941 env
->icount_extra
= 0;
3942 count
= qemu_next_deadline();
3943 count
= (count
+ (1 << icount_time_shift
) - 1)
3944 >> icount_time_shift
;
3945 qemu_icount
+= count
;
3946 decr
= (count
> 0xffff) ? 0xffff : count
;
3948 env
->icount_decr
.u16
.low
= decr
;
3949 env
->icount_extra
= count
;
3951 ret
= cpu_exec(env
);
3952 #ifdef CONFIG_PROFILER
3953 qemu_time
+= profile_getclock() - ti
;
3956 /* Fold pending instructions back into the
3957 instruction counter, and clear the interrupt flag. */
3958 qemu_icount
-= (env
->icount_decr
.u16
.low
3959 + env
->icount_extra
);
3960 env
->icount_decr
.u32
= 0;
3961 env
->icount_extra
= 0;
3966 static void tcg_cpu_exec(void)
3970 if (next_cpu
== NULL
)
3971 next_cpu
= first_cpu
;
3972 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
3973 CPUState
*env
= cur_cpu
= next_cpu
;
3977 if (timer_alarm_pending
) {
3978 timer_alarm_pending
= 0;
3981 if (cpu_can_run(env
))
3982 ret
= qemu_cpu_exec(env
);
3983 if (ret
== EXCP_DEBUG
) {
3984 gdb_set_stop_cpu(env
);
3985 debug_requested
= 1;
3991 static int cpu_has_work(CPUState
*env
)
3999 if (qemu_cpu_has_work(env
))
4004 static int tcg_has_work(void)
4008 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
)
4009 if (cpu_has_work(env
))
4014 static int qemu_calculate_timeout(void)
4016 #ifndef CONFIG_IOTHREAD
4021 else if (tcg_has_work())
4023 else if (!use_icount
)
4026 /* XXX: use timeout computed from timers */
4029 /* Advance virtual time to the next event. */
4030 if (use_icount
== 1) {
4031 /* When not using an adaptive execution frequency
4032 we tend to get badly out of sync with real time,
4033 so just delay for a reasonable amount of time. */
4036 delta
= cpu_get_icount() - cpu_get_clock();
4039 /* If virtual time is ahead of real time then just
4041 timeout
= (delta
/ 1000000) + 1;
4043 /* Wait for either IO to occur or the next
4045 add
= qemu_next_deadline();
4046 /* We advance the timer before checking for IO.
4047 Limit the amount we advance so that early IO
4048 activity won't get the guest too far ahead. */
4052 add
= (add
+ (1 << icount_time_shift
) - 1)
4053 >> icount_time_shift
;
4055 timeout
= delta
/ 1000000;
4062 #else /* CONFIG_IOTHREAD */
4067 static int vm_can_run(void)
4069 if (powerdown_requested
)
4071 if (reset_requested
)
4073 if (shutdown_requested
)
4075 if (debug_requested
)
4080 qemu_irq qemu_system_powerdown
;
4082 static void main_loop(void)
4086 #ifdef CONFIG_IOTHREAD
4087 qemu_system_ready
= 1;
4088 qemu_cond_broadcast(&qemu_system_cond
);
4093 #ifdef CONFIG_PROFILER
4096 #ifndef CONFIG_IOTHREAD
4099 #ifdef CONFIG_PROFILER
4100 ti
= profile_getclock();
4102 main_loop_wait(qemu_calculate_timeout());
4103 #ifdef CONFIG_PROFILER
4104 dev_time
+= profile_getclock() - ti
;
4106 } while (vm_can_run());
4108 if (qemu_debug_requested())
4109 vm_stop(EXCP_DEBUG
);
4110 if (qemu_shutdown_requested()) {
4117 if (qemu_reset_requested()) {
4119 qemu_system_reset();
4122 if (qemu_powerdown_requested()) {
4123 qemu_irq_raise(qemu_system_powerdown
);
4125 if ((r
= qemu_vmstop_requested()))
4131 static void version(void)
4133 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
4136 static void help(int exitcode
)
4139 printf("usage: %s [options] [disk_image]\n"
4141 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4143 #define DEF(option, opt_arg, opt_enum, opt_help) \
4145 #define DEFHEADING(text) stringify(text) "\n"
4146 #include "qemu-options.h"
4151 "During emulation, the following keys are useful:\n"
4152 "ctrl-alt-f toggle full screen\n"
4153 "ctrl-alt-n switch to virtual console 'n'\n"
4154 "ctrl-alt toggle mouse and keyboard grab\n"
4156 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4161 DEFAULT_NETWORK_SCRIPT
,
4162 DEFAULT_NETWORK_DOWN_SCRIPT
,
4164 DEFAULT_GDBSTUB_PORT
,
4169 #define HAS_ARG 0x0001
4172 #define DEF(option, opt_arg, opt_enum, opt_help) \
4174 #define DEFHEADING(text)
4175 #include "qemu-options.h"
4181 typedef struct QEMUOption
{
4187 static const QEMUOption qemu_options
[] = {
4188 { "h", 0, QEMU_OPTION_h
},
4189 #define DEF(option, opt_arg, opt_enum, opt_help) \
4190 { option, opt_arg, opt_enum },
4191 #define DEFHEADING(text)
4192 #include "qemu-options.h"
4200 struct soundhw soundhw
[] = {
4201 #ifdef HAS_AUDIO_CHOICE
4202 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4208 { .init_isa
= pcspk_audio_init
}
4215 "Creative Sound Blaster 16",
4218 { .init_isa
= SB16_init
}
4222 #ifdef CONFIG_CS4231A
4228 { .init_isa
= cs4231a_init
}
4236 "Yamaha YMF262 (OPL3)",
4238 "Yamaha YM3812 (OPL2)",
4242 { .init_isa
= Adlib_init
}
4249 "Gravis Ultrasound GF1",
4252 { .init_isa
= GUS_init
}
4259 "Intel 82801AA AC97 Audio",
4262 { .init_pci
= ac97_init
}
4266 #ifdef CONFIG_ES1370
4269 "ENSONIQ AudioPCI ES1370",
4272 { .init_pci
= es1370_init
}
4276 #endif /* HAS_AUDIO_CHOICE */
4278 { NULL
, NULL
, 0, 0, { NULL
} }
4281 static void select_soundhw (const char *optarg
)
4285 if (*optarg
== '?') {
4288 printf ("Valid sound card names (comma separated):\n");
4289 for (c
= soundhw
; c
->name
; ++c
) {
4290 printf ("%-11s %s\n", c
->name
, c
->descr
);
4292 printf ("\n-soundhw all will enable all of the above\n");
4293 exit (*optarg
!= '?');
4301 if (!strcmp (optarg
, "all")) {
4302 for (c
= soundhw
; c
->name
; ++c
) {
4310 e
= strchr (p
, ',');
4311 l
= !e
? strlen (p
) : (size_t) (e
- p
);
4313 for (c
= soundhw
; c
->name
; ++c
) {
4314 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
4323 "Unknown sound card name (too big to show)\n");
4326 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
4331 p
+= l
+ (e
!= NULL
);
4335 goto show_valid_cards
;
4340 static void select_vgahw (const char *p
)
4344 vga_interface_type
= VGA_NONE
;
4345 if (strstart(p
, "std", &opts
)) {
4346 vga_interface_type
= VGA_STD
;
4347 } else if (strstart(p
, "cirrus", &opts
)) {
4348 vga_interface_type
= VGA_CIRRUS
;
4349 } else if (strstart(p
, "vmware", &opts
)) {
4350 vga_interface_type
= VGA_VMWARE
;
4351 } else if (strstart(p
, "xenfb", &opts
)) {
4352 vga_interface_type
= VGA_XENFB
;
4353 } else if (!strstart(p
, "none", &opts
)) {
4355 fprintf(stderr
, "Unknown vga type: %s\n", p
);
4359 const char *nextopt
;
4361 if (strstart(opts
, ",retrace=", &nextopt
)) {
4363 if (strstart(opts
, "dumb", &nextopt
))
4364 vga_retrace_method
= VGA_RETRACE_DUMB
;
4365 else if (strstart(opts
, "precise", &nextopt
))
4366 vga_retrace_method
= VGA_RETRACE_PRECISE
;
4367 else goto invalid_vga
;
4368 } else goto invalid_vga
;
4374 static int balloon_parse(const char *arg
)
4378 if (strcmp(arg
, "none") == 0) {
4382 if (!strncmp(arg
, "virtio", 6)) {
4383 if (arg
[6] == ',') {
4384 /* have params -> parse them */
4385 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, NULL
);
4389 /* create empty opts */
4390 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
4392 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
4401 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
4403 exit(STATUS_CONTROL_C_EXIT
);
4408 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
4412 if(strlen(str
) != 36)
4415 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
4416 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
4417 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
4423 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
4429 #define MAX_NET_CLIENTS 32
4433 static void termsig_handler(int signal
)
4435 qemu_system_shutdown_request();
4438 static void sigchld_handler(int signal
)
4440 waitpid(-1, NULL
, WNOHANG
);
4443 static void sighandler_setup(void)
4445 struct sigaction act
;
4447 memset(&act
, 0, sizeof(act
));
4448 act
.sa_handler
= termsig_handler
;
4449 sigaction(SIGINT
, &act
, NULL
);
4450 sigaction(SIGHUP
, &act
, NULL
);
4451 sigaction(SIGTERM
, &act
, NULL
);
4453 act
.sa_handler
= sigchld_handler
;
4454 act
.sa_flags
= SA_NOCLDSTOP
;
4455 sigaction(SIGCHLD
, &act
, NULL
);
4461 /* Look for support files in the same directory as the executable. */
4462 static char *find_datadir(const char *argv0
)
4468 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
4475 while (p
!= buf
&& *p
!= '\\')
4478 if (access(buf
, R_OK
) == 0) {
4479 return qemu_strdup(buf
);
4485 /* Find a likely location for support files using the location of the binary.
4486 For installed binaries this will be "$bindir/../share/qemu". When
4487 running from the build tree this will be "$bindir/../pc-bios". */
4488 #define SHARE_SUFFIX "/share/qemu"
4489 #define BUILD_SUFFIX "/pc-bios"
4490 static char *find_datadir(const char *argv0
)
4498 #if defined(__linux__)
4501 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
4507 #elif defined(__FreeBSD__)
4510 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
4517 /* If we don't have any way of figuring out the actual executable
4518 location then try argv[0]. */
4520 p
= realpath(argv0
, buf
);
4528 max_len
= strlen(dir
) +
4529 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
4530 res
= qemu_mallocz(max_len
);
4531 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
4532 if (access(res
, R_OK
)) {
4533 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
4534 if (access(res
, R_OK
)) {
4546 char *qemu_find_file(int type
, const char *name
)
4552 /* If name contains path separators then try it as a straight path. */
4553 if ((strchr(name
, '/') || strchr(name
, '\\'))
4554 && access(name
, R_OK
) == 0) {
4555 return qemu_strdup(name
);
4558 case QEMU_FILE_TYPE_BIOS
:
4561 case QEMU_FILE_TYPE_KEYMAP
:
4562 subdir
= "keymaps/";
4567 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
4568 buf
= qemu_mallocz(len
);
4569 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
4570 if (access(buf
, R_OK
)) {
4577 static int device_init_func(QemuOpts
*opts
, void *opaque
)
4581 dev
= qdev_device_add(opts
);
4587 struct device_config
{
4589 DEV_USB
, /* -usbdevice */
4592 const char *cmdline
;
4593 TAILQ_ENTRY(device_config
) next
;
4595 TAILQ_HEAD(, device_config
) device_configs
= TAILQ_HEAD_INITIALIZER(device_configs
);
4597 static void add_device_config(int type
, const char *cmdline
)
4599 struct device_config
*conf
;
4601 conf
= qemu_mallocz(sizeof(*conf
));
4603 conf
->cmdline
= cmdline
;
4604 TAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
4607 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
4609 struct device_config
*conf
;
4612 TAILQ_FOREACH(conf
, &device_configs
, next
) {
4613 if (conf
->type
!= type
)
4615 rc
= func(conf
->cmdline
);
4622 int main(int argc
, char **argv
, char **envp
)
4624 const char *gdbstub_dev
= NULL
;
4625 uint32_t boot_devices_bitmap
= 0;
4627 int snapshot
, linux_boot
, net_boot
;
4628 const char *initrd_filename
;
4629 const char *kernel_filename
, *kernel_cmdline
;
4630 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
4632 DisplayChangeListener
*dcl
;
4633 int cyls
, heads
, secs
, translation
;
4634 const char *net_clients
[MAX_NET_CLIENTS
];
4636 QemuOpts
*hda_opts
= NULL
, *opts
;
4638 const char *r
, *optarg
;
4639 CharDriverState
*monitor_hds
[MAX_MONITOR_DEVICES
];
4640 const char *monitor_devices
[MAX_MONITOR_DEVICES
];
4641 int monitor_device_index
;
4642 const char *serial_devices
[MAX_SERIAL_PORTS
];
4643 int serial_device_index
;
4644 const char *parallel_devices
[MAX_PARALLEL_PORTS
];
4645 int parallel_device_index
;
4646 const char *virtio_consoles
[MAX_VIRTIO_CONSOLES
];
4647 int virtio_console_index
;
4648 const char *loadvm
= NULL
;
4649 QEMUMachine
*machine
;
4650 const char *cpu_model
;
4655 const char *pid_file
= NULL
;
4656 const char *incoming
= NULL
;
4659 struct passwd
*pwd
= NULL
;
4660 const char *chroot_dir
= NULL
;
4661 const char *run_as
= NULL
;
4664 int show_vnc_port
= 0;
4666 qemu_errors_to_file(stderr
);
4667 qemu_cache_utils_init(envp
);
4669 LIST_INIT (&vm_change_state_head
);
4672 struct sigaction act
;
4673 sigfillset(&act
.sa_mask
);
4675 act
.sa_handler
= SIG_IGN
;
4676 sigaction(SIGPIPE
, &act
, NULL
);
4679 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
4680 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4681 QEMU to run on a single CPU */
4686 h
= GetCurrentProcess();
4687 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
4688 for(i
= 0; i
< 32; i
++) {
4689 if (mask
& (1 << i
))
4694 SetProcessAffinityMask(h
, mask
);
4700 module_call_init(MODULE_INIT_MACHINE
);
4701 machine
= find_default_machine();
4703 initrd_filename
= NULL
;
4706 kernel_filename
= NULL
;
4707 kernel_cmdline
= "";
4708 cyls
= heads
= secs
= 0;
4709 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4711 serial_devices
[0] = "vc:80Cx24C";
4712 for(i
= 1; i
< MAX_SERIAL_PORTS
; i
++)
4713 serial_devices
[i
] = NULL
;
4714 serial_device_index
= 0;
4716 parallel_devices
[0] = "vc:80Cx24C";
4717 for(i
= 1; i
< MAX_PARALLEL_PORTS
; i
++)
4718 parallel_devices
[i
] = NULL
;
4719 parallel_device_index
= 0;
4721 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++)
4722 virtio_consoles
[i
] = NULL
;
4723 virtio_console_index
= 0;
4725 monitor_devices
[0] = "vc:80Cx24C";
4726 for (i
= 1; i
< MAX_MONITOR_DEVICES
; i
++) {
4727 monitor_devices
[i
] = NULL
;
4729 monitor_device_index
= 0;
4731 for (i
= 0; i
< MAX_NODES
; i
++) {
4733 node_cpumask
[i
] = 0;
4749 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
4751 const QEMUOption
*popt
;
4754 /* Treat --foo the same as -foo. */
4757 popt
= qemu_options
;
4760 fprintf(stderr
, "%s: invalid option -- '%s'\n",
4764 if (!strcmp(popt
->name
, r
+ 1))
4768 if (popt
->flags
& HAS_ARG
) {
4769 if (optind
>= argc
) {
4770 fprintf(stderr
, "%s: option '%s' requires an argument\n",
4774 optarg
= argv
[optind
++];
4779 switch(popt
->index
) {
4781 machine
= find_machine(optarg
);
4784 printf("Supported machines are:\n");
4785 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
4787 printf("%-10s %s (alias of %s)\n",
4788 m
->alias
, m
->desc
, m
->name
);
4789 printf("%-10s %s%s\n",
4791 m
->is_default
? " (default)" : "");
4793 exit(*optarg
!= '?');
4796 case QEMU_OPTION_cpu
:
4797 /* hw initialization will check this */
4798 if (*optarg
== '?') {
4799 /* XXX: implement xxx_cpu_list for targets that still miss it */
4800 #if defined(cpu_list)
4801 cpu_list(stdout
, &fprintf
);
4808 case QEMU_OPTION_initrd
:
4809 initrd_filename
= optarg
;
4811 case QEMU_OPTION_hda
:
4813 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
4815 hda_opts
= drive_add(optarg
, HD_ALIAS
4816 ",cyls=%d,heads=%d,secs=%d%s",
4817 0, cyls
, heads
, secs
,
4818 translation
== BIOS_ATA_TRANSLATION_LBA
?
4820 translation
== BIOS_ATA_TRANSLATION_NONE
?
4821 ",trans=none" : "");
4823 case QEMU_OPTION_hdb
:
4824 case QEMU_OPTION_hdc
:
4825 case QEMU_OPTION_hdd
:
4826 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
4828 case QEMU_OPTION_drive
:
4829 drive_add(NULL
, "%s", optarg
);
4831 case QEMU_OPTION_set
:
4832 if (qemu_set_option(optarg
) != 0)
4835 case QEMU_OPTION_mtdblock
:
4836 drive_add(optarg
, MTD_ALIAS
);
4838 case QEMU_OPTION_sd
:
4839 drive_add(optarg
, SD_ALIAS
);
4841 case QEMU_OPTION_pflash
:
4842 drive_add(optarg
, PFLASH_ALIAS
);
4844 case QEMU_OPTION_snapshot
:
4847 case QEMU_OPTION_hdachs
:
4851 cyls
= strtol(p
, (char **)&p
, 0);
4852 if (cyls
< 1 || cyls
> 16383)
4857 heads
= strtol(p
, (char **)&p
, 0);
4858 if (heads
< 1 || heads
> 16)
4863 secs
= strtol(p
, (char **)&p
, 0);
4864 if (secs
< 1 || secs
> 63)
4868 if (!strcmp(p
, "none"))
4869 translation
= BIOS_ATA_TRANSLATION_NONE
;
4870 else if (!strcmp(p
, "lba"))
4871 translation
= BIOS_ATA_TRANSLATION_LBA
;
4872 else if (!strcmp(p
, "auto"))
4873 translation
= BIOS_ATA_TRANSLATION_AUTO
;
4876 } else if (*p
!= '\0') {
4878 fprintf(stderr
, "qemu: invalid physical CHS format\n");
4881 if (hda_opts
!= NULL
) {
4883 snprintf(num
, sizeof(num
), "%d", cyls
);
4884 qemu_opt_set(hda_opts
, "cyls", num
);
4885 snprintf(num
, sizeof(num
), "%d", heads
);
4886 qemu_opt_set(hda_opts
, "heads", num
);
4887 snprintf(num
, sizeof(num
), "%d", secs
);
4888 qemu_opt_set(hda_opts
, "secs", num
);
4889 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
4890 qemu_opt_set(hda_opts
, "trans", "lba");
4891 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
4892 qemu_opt_set(hda_opts
, "trans", "none");
4896 case QEMU_OPTION_numa
:
4897 if (nb_numa_nodes
>= MAX_NODES
) {
4898 fprintf(stderr
, "qemu: too many NUMA nodes\n");
4903 case QEMU_OPTION_nographic
:
4904 display_type
= DT_NOGRAPHIC
;
4906 #ifdef CONFIG_CURSES
4907 case QEMU_OPTION_curses
:
4908 display_type
= DT_CURSES
;
4911 case QEMU_OPTION_portrait
:
4914 case QEMU_OPTION_kernel
:
4915 kernel_filename
= optarg
;
4917 case QEMU_OPTION_append
:
4918 kernel_cmdline
= optarg
;
4920 case QEMU_OPTION_cdrom
:
4921 drive_add(optarg
, CDROM_ALIAS
);
4923 case QEMU_OPTION_boot
:
4925 static const char * const params
[] = {
4926 "order", "once", "menu", NULL
4928 char buf
[sizeof(boot_devices
)];
4929 char *standard_boot_devices
;
4932 if (!strchr(optarg
, '=')) {
4934 pstrcpy(buf
, sizeof(buf
), optarg
);
4935 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
4937 "qemu: unknown boot parameter '%s' in '%s'\n",
4943 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
4944 boot_devices_bitmap
= parse_bootdevices(buf
);
4945 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4948 if (get_param_value(buf
, sizeof(buf
),
4950 boot_devices_bitmap
|= parse_bootdevices(buf
);
4951 standard_boot_devices
= qemu_strdup(boot_devices
);
4952 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4953 qemu_register_reset(restore_boot_devices
,
4954 standard_boot_devices
);
4956 if (get_param_value(buf
, sizeof(buf
),
4958 if (!strcmp(buf
, "on")) {
4960 } else if (!strcmp(buf
, "off")) {
4964 "qemu: invalid option value '%s'\n",
4972 case QEMU_OPTION_fda
:
4973 case QEMU_OPTION_fdb
:
4974 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
4977 case QEMU_OPTION_no_fd_bootchk
:
4981 case QEMU_OPTION_net
:
4982 if (nb_net_clients
>= MAX_NET_CLIENTS
) {
4983 fprintf(stderr
, "qemu: too many network clients\n");
4986 net_clients
[nb_net_clients
] = optarg
;
4990 case QEMU_OPTION_tftp
:
4991 legacy_tftp_prefix
= optarg
;
4993 case QEMU_OPTION_bootp
:
4994 legacy_bootp_filename
= optarg
;
4997 case QEMU_OPTION_smb
:
4998 net_slirp_smb(optarg
);
5001 case QEMU_OPTION_redir
:
5002 net_slirp_redir(optarg
);
5005 case QEMU_OPTION_bt
:
5006 add_device_config(DEV_BT
, optarg
);
5009 case QEMU_OPTION_audio_help
:
5013 case QEMU_OPTION_soundhw
:
5014 select_soundhw (optarg
);
5020 case QEMU_OPTION_version
:
5024 case QEMU_OPTION_m
: {
5028 value
= strtoul(optarg
, &ptr
, 10);
5030 case 0: case 'M': case 'm':
5037 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
5041 /* On 32-bit hosts, QEMU is limited by virtual address space */
5042 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
5043 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
5046 if (value
!= (uint64_t)(ram_addr_t
)value
) {
5047 fprintf(stderr
, "qemu: ram size too large\n");
5056 const CPULogItem
*item
;
5058 mask
= cpu_str_to_log_mask(optarg
);
5060 printf("Log items (comma separated):\n");
5061 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
5062 printf("%-10s %s\n", item
->name
, item
->help
);
5070 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
5072 case QEMU_OPTION_gdb
:
5073 gdbstub_dev
= optarg
;
5078 case QEMU_OPTION_bios
:
5081 case QEMU_OPTION_singlestep
:
5089 keyboard_layout
= optarg
;
5092 case QEMU_OPTION_localtime
:
5095 case QEMU_OPTION_vga
:
5096 select_vgahw (optarg
);
5098 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5104 w
= strtol(p
, (char **)&p
, 10);
5107 fprintf(stderr
, "qemu: invalid resolution or depth\n");
5113 h
= strtol(p
, (char **)&p
, 10);
5118 depth
= strtol(p
, (char **)&p
, 10);
5119 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
5120 depth
!= 24 && depth
!= 32)
5122 } else if (*p
== '\0') {
5123 depth
= graphic_depth
;
5130 graphic_depth
= depth
;
5134 case QEMU_OPTION_echr
:
5137 term_escape_char
= strtol(optarg
, &r
, 0);
5139 printf("Bad argument to echr\n");
5142 case QEMU_OPTION_monitor
:
5143 if (monitor_device_index
>= MAX_MONITOR_DEVICES
) {
5144 fprintf(stderr
, "qemu: too many monitor devices\n");
5147 monitor_devices
[monitor_device_index
] = optarg
;
5148 monitor_device_index
++;
5150 case QEMU_OPTION_chardev
:
5151 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, "backend");
5153 fprintf(stderr
, "parse error: %s\n", optarg
);
5156 if (NULL
== qemu_chr_open_opts(opts
, NULL
)) {
5160 case QEMU_OPTION_serial
:
5161 if (serial_device_index
>= MAX_SERIAL_PORTS
) {
5162 fprintf(stderr
, "qemu: too many serial ports\n");
5165 serial_devices
[serial_device_index
] = optarg
;
5166 serial_device_index
++;
5168 case QEMU_OPTION_watchdog
:
5171 "qemu: only one watchdog option may be given\n");
5176 case QEMU_OPTION_watchdog_action
:
5177 if (select_watchdog_action(optarg
) == -1) {
5178 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
5182 case QEMU_OPTION_virtiocon
:
5183 if (virtio_console_index
>= MAX_VIRTIO_CONSOLES
) {
5184 fprintf(stderr
, "qemu: too many virtio consoles\n");
5187 virtio_consoles
[virtio_console_index
] = optarg
;
5188 virtio_console_index
++;
5190 case QEMU_OPTION_parallel
:
5191 if (parallel_device_index
>= MAX_PARALLEL_PORTS
) {
5192 fprintf(stderr
, "qemu: too many parallel ports\n");
5195 parallel_devices
[parallel_device_index
] = optarg
;
5196 parallel_device_index
++;
5198 case QEMU_OPTION_loadvm
:
5201 case QEMU_OPTION_full_screen
:
5205 case QEMU_OPTION_no_frame
:
5208 case QEMU_OPTION_alt_grab
:
5211 case QEMU_OPTION_no_quit
:
5214 case QEMU_OPTION_sdl
:
5215 display_type
= DT_SDL
;
5218 case QEMU_OPTION_pidfile
:
5222 case QEMU_OPTION_win2k_hack
:
5223 win2k_install_hack
= 1;
5225 case QEMU_OPTION_rtc_td_hack
:
5228 case QEMU_OPTION_acpitable
:
5229 if(acpi_table_add(optarg
) < 0) {
5230 fprintf(stderr
, "Wrong acpi table provided\n");
5234 case QEMU_OPTION_smbios
:
5235 if(smbios_entry_add(optarg
) < 0) {
5236 fprintf(stderr
, "Wrong smbios provided\n");
5242 case QEMU_OPTION_enable_kvm
:
5246 case QEMU_OPTION_usb
:
5249 case QEMU_OPTION_usbdevice
:
5251 add_device_config(DEV_USB
, optarg
);
5253 case QEMU_OPTION_device
:
5254 opts
= qemu_opts_parse(&qemu_device_opts
, optarg
, "driver");
5256 fprintf(stderr
, "parse error: %s\n", optarg
);
5260 case QEMU_OPTION_smp
:
5263 fprintf(stderr
, "Invalid number of CPUs\n");
5266 if (max_cpus
< smp_cpus
) {
5267 fprintf(stderr
, "maxcpus must be equal to or greater than "
5271 if (max_cpus
> 255) {
5272 fprintf(stderr
, "Unsupported number of maxcpus\n");
5276 case QEMU_OPTION_vnc
:
5277 display_type
= DT_VNC
;
5278 vnc_display
= optarg
;
5281 case QEMU_OPTION_no_acpi
:
5284 case QEMU_OPTION_no_hpet
:
5287 case QEMU_OPTION_balloon
:
5288 if (balloon_parse(optarg
) < 0) {
5289 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
5294 case QEMU_OPTION_no_reboot
:
5297 case QEMU_OPTION_no_shutdown
:
5300 case QEMU_OPTION_show_cursor
:
5303 case QEMU_OPTION_uuid
:
5304 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
5305 fprintf(stderr
, "Fail to parse UUID string."
5306 " Wrong format.\n");
5311 case QEMU_OPTION_daemonize
:
5315 case QEMU_OPTION_option_rom
:
5316 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
5317 fprintf(stderr
, "Too many option ROMs\n");
5320 option_rom
[nb_option_roms
] = optarg
;
5323 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5324 case QEMU_OPTION_semihosting
:
5325 semihosting_enabled
= 1;
5328 case QEMU_OPTION_name
:
5329 qemu_name
= qemu_strdup(optarg
);
5331 char *p
= strchr(qemu_name
, ',');
5334 if (strncmp(p
, "process=", 8)) {
5335 fprintf(stderr
, "Unknown subargument %s to -name", p
);
5343 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5344 case QEMU_OPTION_prom_env
:
5345 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
5346 fprintf(stderr
, "Too many prom variables\n");
5349 prom_envs
[nb_prom_envs
] = optarg
;
5354 case QEMU_OPTION_old_param
:
5358 case QEMU_OPTION_clock
:
5359 configure_alarms(optarg
);
5361 case QEMU_OPTION_startdate
:
5364 time_t rtc_start_date
;
5365 if (!strcmp(optarg
, "now")) {
5366 rtc_date_offset
= -1;
5368 if (sscanf(optarg
, "%d-%d-%dT%d:%d:%d",
5376 } else if (sscanf(optarg
, "%d-%d-%d",
5379 &tm
.tm_mday
) == 3) {
5388 rtc_start_date
= mktimegm(&tm
);
5389 if (rtc_start_date
== -1) {
5391 fprintf(stderr
, "Invalid date format. Valid format are:\n"
5392 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5395 rtc_date_offset
= time(NULL
) - rtc_start_date
;
5399 case QEMU_OPTION_tb_size
:
5400 tb_size
= strtol(optarg
, NULL
, 0);
5404 case QEMU_OPTION_icount
:
5406 if (strcmp(optarg
, "auto") == 0) {
5407 icount_time_shift
= -1;
5409 icount_time_shift
= strtol(optarg
, NULL
, 0);
5412 case QEMU_OPTION_incoming
:
5416 case QEMU_OPTION_chroot
:
5417 chroot_dir
= optarg
;
5419 case QEMU_OPTION_runas
:
5424 case QEMU_OPTION_xen_domid
:
5425 xen_domid
= atoi(optarg
);
5427 case QEMU_OPTION_xen_create
:
5428 xen_mode
= XEN_CREATE
;
5430 case QEMU_OPTION_xen_attach
:
5431 xen_mode
= XEN_ATTACH
;
5438 if (kvm_enabled()) {
5441 ret
= kvm_init(smp_cpus
);
5443 fprintf(stderr
, "failed to initialize KVM\n");
5448 /* If no data_dir is specified then try to find it relative to the
5451 data_dir
= find_datadir(argv
[0]);
5453 /* If all else fails use the install patch specified when building. */
5455 data_dir
= CONFIG_QEMU_SHAREDIR
;
5459 * Default to max_cpus = smp_cpus, in case the user doesn't
5460 * specify a max_cpus value.
5463 max_cpus
= smp_cpus
;
5465 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
5466 if (smp_cpus
> machine
->max_cpus
) {
5467 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
5468 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
5473 if (display_type
== DT_NOGRAPHIC
) {
5474 if (serial_device_index
== 0)
5475 serial_devices
[0] = "stdio";
5476 if (parallel_device_index
== 0)
5477 parallel_devices
[0] = "null";
5478 if (strncmp(monitor_devices
[0], "vc", 2) == 0) {
5479 monitor_devices
[0] = "stdio";
5487 if (pipe(fds
) == -1)
5498 len
= read(fds
[0], &status
, 1);
5499 if (len
== -1 && (errno
== EINTR
))
5504 else if (status
== 1) {
5505 fprintf(stderr
, "Could not acquire pidfile\n");
5522 signal(SIGTSTP
, SIG_IGN
);
5523 signal(SIGTTOU
, SIG_IGN
);
5524 signal(SIGTTIN
, SIG_IGN
);
5527 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
5530 write(fds
[1], &status
, 1);
5532 fprintf(stderr
, "Could not acquire pid file\n");
5537 if (qemu_init_main_loop()) {
5538 fprintf(stderr
, "qemu_init_main_loop failed\n");
5541 linux_boot
= (kernel_filename
!= NULL
);
5543 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
5544 fprintf(stderr
, "-append only allowed with -kernel option\n");
5548 if (!linux_boot
&& initrd_filename
!= NULL
) {
5549 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
5554 /* Win32 doesn't support line-buffering and requires size >= 2 */
5555 setvbuf(stdout
, NULL
, _IOLBF
, 0);
5559 if (init_timer_alarm() < 0) {
5560 fprintf(stderr
, "could not initialize alarm timer\n");
5563 if (use_icount
&& icount_time_shift
< 0) {
5565 /* 125MIPS seems a reasonable initial guess at the guest speed.
5566 It will be corrected fairly quickly anyway. */
5567 icount_time_shift
= 3;
5568 init_icount_adjust();
5575 /* init network clients */
5576 if (nb_net_clients
== 0) {
5577 /* if no clients, we use a default config */
5578 net_clients
[nb_net_clients
++] = "nic";
5580 net_clients
[nb_net_clients
++] = "user";
5584 for(i
= 0;i
< nb_net_clients
; i
++) {
5585 if (net_client_parse(net_clients
[i
]) < 0)
5589 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
5590 net_set_boot_mask(net_boot
);
5594 /* init the bluetooth world */
5595 if (foreach_device_config(DEV_BT
, bt_parse
))
5598 /* init the memory */
5600 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
5602 /* init the dynamic translator */
5603 cpu_exec_init_all(tb_size
* 1024 * 1024);
5607 /* we always create the cdrom drive, even if no disk is there */
5608 drive_add(NULL
, CDROM_ALIAS
);
5610 /* we always create at least one floppy */
5611 drive_add(NULL
, FD_ALIAS
, 0);
5613 /* we always create one sd slot, even if no card is in it */
5614 drive_add(NULL
, SD_ALIAS
);
5616 /* open the virtual block devices */
5618 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
5619 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
5622 register_savevm("timer", 0, 2, timer_save
, timer_load
, NULL
);
5623 register_savevm_live("ram", 0, 3, ram_save_live
, NULL
, ram_load
, NULL
);
5625 /* Maintain compatibility with multiple stdio monitors */
5626 if (!strcmp(monitor_devices
[0],"stdio")) {
5627 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5628 const char *devname
= serial_devices
[i
];
5629 if (devname
&& !strcmp(devname
,"mon:stdio")) {
5630 monitor_devices
[0] = NULL
;
5632 } else if (devname
&& !strcmp(devname
,"stdio")) {
5633 monitor_devices
[0] = NULL
;
5634 serial_devices
[i
] = "mon:stdio";
5640 if (nb_numa_nodes
> 0) {
5643 if (nb_numa_nodes
> smp_cpus
) {
5644 nb_numa_nodes
= smp_cpus
;
5647 /* If no memory size if given for any node, assume the default case
5648 * and distribute the available memory equally across all nodes
5650 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5651 if (node_mem
[i
] != 0)
5654 if (i
== nb_numa_nodes
) {
5655 uint64_t usedmem
= 0;
5657 /* On Linux, the each node's border has to be 8MB aligned,
5658 * the final node gets the rest.
5660 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
5661 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
5662 usedmem
+= node_mem
[i
];
5664 node_mem
[i
] = ram_size
- usedmem
;
5667 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5668 if (node_cpumask
[i
] != 0)
5671 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5672 * must cope with this anyway, because there are BIOSes out there in
5673 * real machines which also use this scheme.
5675 if (i
== nb_numa_nodes
) {
5676 for (i
= 0; i
< smp_cpus
; i
++) {
5677 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
5682 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5683 const char *devname
= monitor_devices
[i
];
5684 if (devname
&& strcmp(devname
, "none")) {
5687 snprintf(label
, sizeof(label
), "monitor");
5689 snprintf(label
, sizeof(label
), "monitor%d", i
);
5691 monitor_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5692 if (!monitor_hds
[i
]) {
5693 fprintf(stderr
, "qemu: could not open monitor device '%s'\n",
5700 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5701 const char *devname
= serial_devices
[i
];
5702 if (devname
&& strcmp(devname
, "none")) {
5704 snprintf(label
, sizeof(label
), "serial%d", i
);
5705 serial_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5706 if (!serial_hds
[i
]) {
5707 fprintf(stderr
, "qemu: could not open serial device '%s'\n",
5714 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5715 const char *devname
= parallel_devices
[i
];
5716 if (devname
&& strcmp(devname
, "none")) {
5718 snprintf(label
, sizeof(label
), "parallel%d", i
);
5719 parallel_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5720 if (!parallel_hds
[i
]) {
5721 fprintf(stderr
, "qemu: could not open parallel device '%s'\n",
5728 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5729 const char *devname
= virtio_consoles
[i
];
5730 if (devname
&& strcmp(devname
, "none")) {
5732 snprintf(label
, sizeof(label
), "virtcon%d", i
);
5733 virtcon_hds
[i
] = qemu_chr_open(label
, devname
, NULL
);
5734 if (!virtcon_hds
[i
]) {
5735 fprintf(stderr
, "qemu: could not open virtio console '%s'\n",
5742 module_call_init(MODULE_INIT_DEVICE
);
5745 i
= select_watchdog(watchdog
);
5747 exit (i
== 1 ? 1 : 0);
5750 if (machine
->compat_props
) {
5751 qdev_prop_register_compat(machine
->compat_props
);
5753 machine
->init(ram_size
, boot_devices
,
5754 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
5758 /* must be after terminal init, SDL library changes signal handlers */
5762 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
5763 for (i
= 0; i
< nb_numa_nodes
; i
++) {
5764 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
5770 current_machine
= machine
;
5772 /* init USB devices */
5774 foreach_device_config(DEV_USB
, usb_parse
);
5777 /* init generic devices */
5778 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
5782 dumb_display_init();
5783 /* just use the first displaystate for the moment */
5786 if (display_type
== DT_DEFAULT
) {
5787 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5788 display_type
= DT_SDL
;
5790 display_type
= DT_VNC
;
5791 vnc_display
= "localhost:0,to=99";
5797 switch (display_type
) {
5800 #if defined(CONFIG_CURSES)
5802 curses_display_init(ds
, full_screen
);
5805 #if defined(CONFIG_SDL)
5807 sdl_display_init(ds
, full_screen
, no_frame
);
5809 #elif defined(CONFIG_COCOA)
5811 cocoa_display_init(ds
, full_screen
);
5815 vnc_display_init(ds
);
5816 if (vnc_display_open(ds
, vnc_display
) < 0)
5819 if (show_vnc_port
) {
5820 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
5828 dcl
= ds
->listeners
;
5829 while (dcl
!= NULL
) {
5830 if (dcl
->dpy_refresh
!= NULL
) {
5831 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
5832 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
5837 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
5838 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
5839 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
5842 text_consoles_set_display(display_state
);
5843 qemu_chr_initial_reset();
5845 for (i
= 0; i
< MAX_MONITOR_DEVICES
; i
++) {
5846 if (monitor_devices
[i
] && monitor_hds
[i
]) {
5847 monitor_init(monitor_hds
[i
],
5848 MONITOR_USE_READLINE
|
5849 ((i
== 0) ? MONITOR_IS_DEFAULT
: 0));
5853 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
5854 const char *devname
= serial_devices
[i
];
5855 if (devname
&& strcmp(devname
, "none")) {
5856 if (strstart(devname
, "vc", 0))
5857 qemu_chr_printf(serial_hds
[i
], "serial%d console\r\n", i
);
5861 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
5862 const char *devname
= parallel_devices
[i
];
5863 if (devname
&& strcmp(devname
, "none")) {
5864 if (strstart(devname
, "vc", 0))
5865 qemu_chr_printf(parallel_hds
[i
], "parallel%d console\r\n", i
);
5869 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
5870 const char *devname
= virtio_consoles
[i
];
5871 if (virtcon_hds
[i
] && devname
) {
5872 if (strstart(devname
, "vc", 0))
5873 qemu_chr_printf(virtcon_hds
[i
], "virtio console%d\r\n", i
);
5877 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
5878 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
5884 if (load_vmstate(cur_mon
, loadvm
) < 0) {
5890 qemu_start_incoming_migration(incoming
);
5891 } else if (autostart
) {
5901 len
= write(fds
[1], &status
, 1);
5902 if (len
== -1 && (errno
== EINTR
))
5909 TFR(fd
= open("/dev/null", O_RDWR
));
5915 pwd
= getpwnam(run_as
);
5917 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
5923 if (chroot(chroot_dir
) < 0) {
5924 fprintf(stderr
, "chroot failed\n");
5931 if (setgid(pwd
->pw_gid
) < 0) {
5932 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
5935 if (setuid(pwd
->pw_uid
) < 0) {
5936 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
5939 if (setuid(0) != -1) {
5940 fprintf(stderr
, "Dropping privileges failed\n");