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
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
40 #if defined(__APPLE__) || defined(main)
42 int qemu_main(int argc
, char **argv
, char **envp
);
43 int main(int argc
, char **argv
)
45 return qemu_main(argc
, argv
, NULL
);
48 #define main qemu_main
50 #endif /* CONFIG_SDL */
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/firmware/smbios.h"
67 #include "hw/acpi/acpi.h"
68 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
103 #include "fsdev/qemu-fsdev.h"
105 #include "sysemu/qtest.h"
107 #include "disas/disas.h"
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/plugin.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
133 #define MAX_VIRTIO_CONSOLES 1
135 static const char *data_dir
[16];
136 static int data_dir_idx
;
137 const char *bios_name
= NULL
;
138 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
140 const char* keyboard_layout
= NULL
;
142 const char *mem_path
= NULL
;
143 int mem_prealloc
= 0; /* force preallocation of physical target memory */
144 bool enable_mlock
= false;
145 bool enable_cpu_pm
= false;
147 NICInfo nd_table
[MAX_NICS
];
153 } rtc_base_type
= RTC_BASE_UTC
;
154 static time_t rtc_ref_start_datetime
;
155 static int rtc_realtime_clock_offset
; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset
= -1; /* valid & used only with
158 QEMUClockType rtc_clock
;
159 int vga_interface_type
= VGA_NONE
;
160 static DisplayOptions dpy
;
161 static int num_serial_hds
;
162 static Chardev
**serial_hds
;
163 Chardev
*parallel_hds
[MAX_PARALLEL_PORTS
];
164 int win2k_install_hack
= 0;
166 int acpi_enabled
= 1;
169 static int no_reboot
;
172 int graphic_rotate
= 0;
173 const char *watchdog
;
174 QEMUOptionRom option_rom
[MAX_OPTION_ROMS
];
177 const char *qemu_name
;
180 unsigned int nb_prom_envs
= 0;
181 const char *prom_envs
[MAX_PROM_ENVS
];
184 uint8_t *boot_splash_filedata
;
185 int only_migratable
; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled
;
188 int icount_align_option
;
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 static NotifierList exit_notifiers
=
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers
);
199 static NotifierList machine_init_done_notifiers
=
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
204 enum xen_mode xen_mode
= XEN_EMULATE
;
205 bool xen_domid_restrict
;
207 static int has_defaults
= 1;
208 static int default_serial
= 1;
209 static int default_parallel
= 1;
210 static int default_monitor
= 1;
211 static int default_floppy
= 1;
212 static int default_cdrom
= 1;
213 static int default_sdcard
= 1;
214 static int default_vga
= 1;
215 static int default_net
= 1;
221 { .driver
= "isa-serial", .flag
= &default_serial
},
222 { .driver
= "isa-parallel", .flag
= &default_parallel
},
223 { .driver
= "isa-fdc", .flag
= &default_floppy
},
224 { .driver
= "floppy", .flag
= &default_floppy
},
225 { .driver
= "ide-cd", .flag
= &default_cdrom
},
226 { .driver
= "ide-hd", .flag
= &default_cdrom
},
227 { .driver
= "ide-drive", .flag
= &default_cdrom
},
228 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
229 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
230 { .driver
= "VGA", .flag
= &default_vga
},
231 { .driver
= "isa-vga", .flag
= &default_vga
},
232 { .driver
= "cirrus-vga", .flag
= &default_vga
},
233 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
234 { .driver
= "vmware-svga", .flag
= &default_vga
},
235 { .driver
= "qxl-vga", .flag
= &default_vga
},
236 { .driver
= "virtio-vga", .flag
= &default_vga
},
237 { .driver
= "ati-vga", .flag
= &default_vga
},
238 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
241 static QemuOptsList qemu_rtc_opts
= {
243 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
248 .type
= QEMU_OPT_STRING
,
251 .type
= QEMU_OPT_STRING
,
254 .type
= QEMU_OPT_STRING
,
256 { /* end of list */ }
260 static QemuOptsList qemu_option_rom_opts
= {
261 .name
= "option-rom",
262 .implied_opt_name
= "romfile",
263 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
267 .type
= QEMU_OPT_NUMBER
,
270 .type
= QEMU_OPT_STRING
,
272 { /* end of list */ }
276 static QemuOptsList qemu_machine_opts
= {
278 .implied_opt_name
= "type",
280 .head
= QTAILQ_HEAD_INITIALIZER(qemu_machine_opts
.head
),
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
291 static QemuOptsList qemu_accel_opts
= {
293 .implied_opt_name
= "accel",
294 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
299 .type
= QEMU_OPT_STRING
,
300 .help
= "Select the type of accelerator",
304 .type
= QEMU_OPT_STRING
,
305 .help
= "Enable/disable multi-threaded TCG",
307 { /* end of list */ }
311 static QemuOptsList qemu_boot_opts
= {
313 .implied_opt_name
= "order",
315 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
319 .type
= QEMU_OPT_STRING
,
322 .type
= QEMU_OPT_STRING
,
325 .type
= QEMU_OPT_BOOL
,
328 .type
= QEMU_OPT_STRING
,
330 .name
= "splash-time",
331 .type
= QEMU_OPT_NUMBER
,
333 .name
= "reboot-timeout",
334 .type
= QEMU_OPT_NUMBER
,
337 .type
= QEMU_OPT_BOOL
,
343 static QemuOptsList qemu_add_fd_opts
= {
345 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
349 .type
= QEMU_OPT_NUMBER
,
350 .help
= "file descriptor of which a duplicate is added to fd set",
353 .type
= QEMU_OPT_NUMBER
,
354 .help
= "ID of the fd set to add fd to",
357 .type
= QEMU_OPT_STRING
,
358 .help
= "free-form string used to describe fd",
360 { /* end of list */ }
364 static QemuOptsList qemu_object_opts
= {
366 .implied_opt_name
= "qom-type",
367 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
373 static QemuOptsList qemu_tpmdev_opts
= {
375 .implied_opt_name
= "type",
376 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
383 static QemuOptsList qemu_realtime_opts
= {
385 .head
= QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts
.head
),
389 .type
= QEMU_OPT_BOOL
,
391 { /* end of list */ }
395 static QemuOptsList qemu_overcommit_opts
= {
396 .name
= "overcommit",
397 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
401 .type
= QEMU_OPT_BOOL
,
405 .type
= QEMU_OPT_BOOL
,
407 { /* end of list */ }
411 static QemuOptsList qemu_msg_opts
= {
413 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
417 .type
= QEMU_OPT_BOOL
,
419 { /* end of list */ }
423 static QemuOptsList qemu_name_opts
= {
425 .implied_opt_name
= "guest",
427 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
431 .type
= QEMU_OPT_STRING
,
432 .help
= "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
437 .type
= QEMU_OPT_STRING
,
438 .help
= "Sets the name of the QEMU process, as shown in top etc",
440 .name
= "debug-threads",
441 .type
= QEMU_OPT_BOOL
,
442 .help
= "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
446 { /* End of list */ }
450 static QemuOptsList qemu_mem_opts
= {
452 .implied_opt_name
= "size",
453 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
458 .type
= QEMU_OPT_SIZE
,
462 .type
= QEMU_OPT_NUMBER
,
466 .type
= QEMU_OPT_SIZE
,
468 { /* end of list */ }
472 static QemuOptsList qemu_icount_opts
= {
474 .implied_opt_name
= "shift",
476 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
480 .type
= QEMU_OPT_STRING
,
483 .type
= QEMU_OPT_BOOL
,
486 .type
= QEMU_OPT_BOOL
,
489 .type
= QEMU_OPT_STRING
,
492 .type
= QEMU_OPT_STRING
,
494 .name
= "rrsnapshot",
495 .type
= QEMU_OPT_STRING
,
497 { /* end of list */ }
501 static QemuOptsList qemu_fw_cfg_opts
= {
503 .implied_opt_name
= "name",
504 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
508 .type
= QEMU_OPT_STRING
,
509 .help
= "Sets the fw_cfg name of the blob to be inserted",
512 .type
= QEMU_OPT_STRING
,
513 .help
= "Sets the name of the file from which "
514 "the fw_cfg blob will be loaded",
517 .type
= QEMU_OPT_STRING
,
518 .help
= "Sets content of the blob to be inserted from a string",
520 { /* end of list */ }
525 * Get machine options
527 * Returns: machine options (never null).
529 QemuOpts
*qemu_get_machine_opts(void)
531 return qemu_find_opts_singleton("machine");
534 const char *qemu_get_vm_name(void)
539 static void res_free(void)
541 g_free(boot_splash_filedata
);
542 boot_splash_filedata
= NULL
;
545 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
547 const char *driver
= qemu_opt_get(opts
, "driver");
552 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
553 if (strcmp(default_list
[i
].driver
, driver
) != 0)
555 *(default_list
[i
].flag
) = 0;
560 /***********************************************************/
563 static RunState current_run_state
= RUN_STATE_PRECONFIG
;
565 /* We use RUN_STATE__MAX but any invalid value will do */
566 static RunState vmstop_requested
= RUN_STATE__MAX
;
567 static QemuMutex vmstop_lock
;
572 } RunStateTransition
;
574 static const RunStateTransition runstate_transitions_def
[] = {
576 { RUN_STATE_PRECONFIG
, RUN_STATE_PRELAUNCH
},
577 /* Early switch to inmigrate state to allow -incoming CLI option work
578 * as it used to. TODO: delay actual switching to inmigrate state to
579 * the point after machine is built and remove this hack.
581 { RUN_STATE_PRECONFIG
, RUN_STATE_INMIGRATE
},
583 { RUN_STATE_DEBUG
, RUN_STATE_RUNNING
},
584 { RUN_STATE_DEBUG
, RUN_STATE_FINISH_MIGRATE
},
585 { RUN_STATE_DEBUG
, RUN_STATE_PRELAUNCH
},
587 { RUN_STATE_INMIGRATE
, RUN_STATE_INTERNAL_ERROR
},
588 { RUN_STATE_INMIGRATE
, RUN_STATE_IO_ERROR
},
589 { RUN_STATE_INMIGRATE
, RUN_STATE_PAUSED
},
590 { RUN_STATE_INMIGRATE
, RUN_STATE_RUNNING
},
591 { RUN_STATE_INMIGRATE
, RUN_STATE_SHUTDOWN
},
592 { RUN_STATE_INMIGRATE
, RUN_STATE_SUSPENDED
},
593 { RUN_STATE_INMIGRATE
, RUN_STATE_WATCHDOG
},
594 { RUN_STATE_INMIGRATE
, RUN_STATE_GUEST_PANICKED
},
595 { RUN_STATE_INMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
596 { RUN_STATE_INMIGRATE
, RUN_STATE_PRELAUNCH
},
597 { RUN_STATE_INMIGRATE
, RUN_STATE_POSTMIGRATE
},
598 { RUN_STATE_INMIGRATE
, RUN_STATE_COLO
},
600 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PAUSED
},
601 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_FINISH_MIGRATE
},
602 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PRELAUNCH
},
604 { RUN_STATE_IO_ERROR
, RUN_STATE_RUNNING
},
605 { RUN_STATE_IO_ERROR
, RUN_STATE_FINISH_MIGRATE
},
606 { RUN_STATE_IO_ERROR
, RUN_STATE_PRELAUNCH
},
608 { RUN_STATE_PAUSED
, RUN_STATE_RUNNING
},
609 { RUN_STATE_PAUSED
, RUN_STATE_FINISH_MIGRATE
},
610 { RUN_STATE_PAUSED
, RUN_STATE_POSTMIGRATE
},
611 { RUN_STATE_PAUSED
, RUN_STATE_PRELAUNCH
},
612 { RUN_STATE_PAUSED
, RUN_STATE_COLO
},
614 { RUN_STATE_POSTMIGRATE
, RUN_STATE_RUNNING
},
615 { RUN_STATE_POSTMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
616 { RUN_STATE_POSTMIGRATE
, RUN_STATE_PRELAUNCH
},
618 { RUN_STATE_PRELAUNCH
, RUN_STATE_RUNNING
},
619 { RUN_STATE_PRELAUNCH
, RUN_STATE_FINISH_MIGRATE
},
620 { RUN_STATE_PRELAUNCH
, RUN_STATE_INMIGRATE
},
622 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_RUNNING
},
623 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PAUSED
},
624 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_POSTMIGRATE
},
625 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PRELAUNCH
},
626 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_COLO
},
628 { RUN_STATE_RESTORE_VM
, RUN_STATE_RUNNING
},
629 { RUN_STATE_RESTORE_VM
, RUN_STATE_PRELAUNCH
},
631 { RUN_STATE_COLO
, RUN_STATE_RUNNING
},
633 { RUN_STATE_RUNNING
, RUN_STATE_DEBUG
},
634 { RUN_STATE_RUNNING
, RUN_STATE_INTERNAL_ERROR
},
635 { RUN_STATE_RUNNING
, RUN_STATE_IO_ERROR
},
636 { RUN_STATE_RUNNING
, RUN_STATE_PAUSED
},
637 { RUN_STATE_RUNNING
, RUN_STATE_FINISH_MIGRATE
},
638 { RUN_STATE_RUNNING
, RUN_STATE_RESTORE_VM
},
639 { RUN_STATE_RUNNING
, RUN_STATE_SAVE_VM
},
640 { RUN_STATE_RUNNING
, RUN_STATE_SHUTDOWN
},
641 { RUN_STATE_RUNNING
, RUN_STATE_WATCHDOG
},
642 { RUN_STATE_RUNNING
, RUN_STATE_GUEST_PANICKED
},
643 { RUN_STATE_RUNNING
, RUN_STATE_COLO
},
645 { RUN_STATE_SAVE_VM
, RUN_STATE_RUNNING
},
647 { RUN_STATE_SHUTDOWN
, RUN_STATE_PAUSED
},
648 { RUN_STATE_SHUTDOWN
, RUN_STATE_FINISH_MIGRATE
},
649 { RUN_STATE_SHUTDOWN
, RUN_STATE_PRELAUNCH
},
651 { RUN_STATE_DEBUG
, RUN_STATE_SUSPENDED
},
652 { RUN_STATE_RUNNING
, RUN_STATE_SUSPENDED
},
653 { RUN_STATE_SUSPENDED
, RUN_STATE_RUNNING
},
654 { RUN_STATE_SUSPENDED
, RUN_STATE_FINISH_MIGRATE
},
655 { RUN_STATE_SUSPENDED
, RUN_STATE_PRELAUNCH
},
656 { RUN_STATE_SUSPENDED
, RUN_STATE_COLO
},
658 { RUN_STATE_WATCHDOG
, RUN_STATE_RUNNING
},
659 { RUN_STATE_WATCHDOG
, RUN_STATE_FINISH_MIGRATE
},
660 { RUN_STATE_WATCHDOG
, RUN_STATE_PRELAUNCH
},
661 { RUN_STATE_WATCHDOG
, RUN_STATE_COLO
},
663 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_RUNNING
},
664 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_FINISH_MIGRATE
},
665 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_PRELAUNCH
},
667 { RUN_STATE__MAX
, RUN_STATE__MAX
},
670 static bool runstate_valid_transitions
[RUN_STATE__MAX
][RUN_STATE__MAX
];
672 bool runstate_check(RunState state
)
674 return current_run_state
== state
;
677 bool runstate_store(char *str
, size_t size
)
679 const char *state
= RunState_str(current_run_state
);
680 size_t len
= strlen(state
) + 1;
685 memcpy(str
, state
, len
);
689 static void runstate_init(void)
691 const RunStateTransition
*p
;
693 memset(&runstate_valid_transitions
, 0, sizeof(runstate_valid_transitions
));
694 for (p
= &runstate_transitions_def
[0]; p
->from
!= RUN_STATE__MAX
; p
++) {
695 runstate_valid_transitions
[p
->from
][p
->to
] = true;
698 qemu_mutex_init(&vmstop_lock
);
701 /* This function will abort() on invalid state transitions */
702 void runstate_set(RunState new_state
)
704 assert(new_state
< RUN_STATE__MAX
);
706 trace_runstate_set(current_run_state
, RunState_str(current_run_state
),
707 new_state
, RunState_str(new_state
));
709 if (current_run_state
== new_state
) {
713 if (!runstate_valid_transitions
[current_run_state
][new_state
]) {
714 error_report("invalid runstate transition: '%s' -> '%s'",
715 RunState_str(current_run_state
),
716 RunState_str(new_state
));
720 current_run_state
= new_state
;
723 int runstate_is_running(void)
725 return runstate_check(RUN_STATE_RUNNING
);
728 bool runstate_needs_reset(void)
730 return runstate_check(RUN_STATE_INTERNAL_ERROR
) ||
731 runstate_check(RUN_STATE_SHUTDOWN
);
734 StatusInfo
*qmp_query_status(Error
**errp
)
736 StatusInfo
*info
= g_malloc0(sizeof(*info
));
738 info
->running
= runstate_is_running();
739 info
->singlestep
= singlestep
;
740 info
->status
= current_run_state
;
745 bool qemu_vmstop_requested(RunState
*r
)
747 qemu_mutex_lock(&vmstop_lock
);
748 *r
= vmstop_requested
;
749 vmstop_requested
= RUN_STATE__MAX
;
750 qemu_mutex_unlock(&vmstop_lock
);
751 return *r
< RUN_STATE__MAX
;
754 void qemu_system_vmstop_request_prepare(void)
756 qemu_mutex_lock(&vmstop_lock
);
759 void qemu_system_vmstop_request(RunState state
)
761 vmstop_requested
= state
;
762 qemu_mutex_unlock(&vmstop_lock
);
766 /***********************************************************/
767 /* RTC reference time/date access */
768 static time_t qemu_ref_timedate(QEMUClockType clock
)
770 time_t value
= qemu_clock_get_ms(clock
) / 1000;
772 case QEMU_CLOCK_REALTIME
:
773 value
-= rtc_realtime_clock_offset
;
775 case QEMU_CLOCK_VIRTUAL
:
776 value
+= rtc_ref_start_datetime
;
778 case QEMU_CLOCK_HOST
:
779 if (rtc_base_type
== RTC_BASE_DATETIME
) {
780 value
-= rtc_host_datetime_offset
;
789 void qemu_get_timedate(struct tm
*tm
, int offset
)
791 time_t ti
= qemu_ref_timedate(rtc_clock
);
795 switch (rtc_base_type
) {
796 case RTC_BASE_DATETIME
:
800 case RTC_BASE_LOCALTIME
:
801 localtime_r(&ti
, tm
);
806 int qemu_timedate_diff(struct tm
*tm
)
810 switch (rtc_base_type
) {
811 case RTC_BASE_DATETIME
:
813 seconds
= mktimegm(tm
);
815 case RTC_BASE_LOCALTIME
:
818 tmp
.tm_isdst
= -1; /* use timezone to figure it out */
819 seconds
= mktime(&tmp
);
826 return seconds
- qemu_ref_timedate(QEMU_CLOCK_HOST
);
829 static void configure_rtc_base_datetime(const char *startdate
)
831 time_t rtc_start_datetime
;
834 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d", &tm
.tm_year
, &tm
.tm_mon
,
835 &tm
.tm_mday
, &tm
.tm_hour
, &tm
.tm_min
, &tm
.tm_sec
) == 6) {
837 } else if (sscanf(startdate
, "%d-%d-%d",
838 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
) == 3) {
847 rtc_start_datetime
= mktimegm(&tm
);
848 if (rtc_start_datetime
== -1) {
850 error_report("invalid datetime format");
851 error_printf("valid formats: "
852 "'2006-06-17T16:01:21' or '2006-06-17'\n");
855 rtc_host_datetime_offset
= rtc_ref_start_datetime
- rtc_start_datetime
;
856 rtc_ref_start_datetime
= rtc_start_datetime
;
859 static void configure_rtc(QemuOpts
*opts
)
864 rtc_clock
= QEMU_CLOCK_HOST
;
865 rtc_ref_start_datetime
= qemu_clock_get_ms(QEMU_CLOCK_HOST
) / 1000;
866 rtc_realtime_clock_offset
= qemu_clock_get_ms(QEMU_CLOCK_REALTIME
) / 1000;
868 value
= qemu_opt_get(opts
, "base");
870 if (!strcmp(value
, "utc")) {
871 rtc_base_type
= RTC_BASE_UTC
;
872 } else if (!strcmp(value
, "localtime")) {
873 Error
*blocker
= NULL
;
874 rtc_base_type
= RTC_BASE_LOCALTIME
;
875 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
876 "-rtc base=localtime");
877 replay_add_blocker(blocker
);
879 rtc_base_type
= RTC_BASE_DATETIME
;
880 configure_rtc_base_datetime(value
);
883 value
= qemu_opt_get(opts
, "clock");
885 if (!strcmp(value
, "host")) {
886 rtc_clock
= QEMU_CLOCK_HOST
;
887 } else if (!strcmp(value
, "rt")) {
888 rtc_clock
= QEMU_CLOCK_REALTIME
;
889 } else if (!strcmp(value
, "vm")) {
890 rtc_clock
= QEMU_CLOCK_VIRTUAL
;
892 error_report("invalid option value '%s'", value
);
896 value
= qemu_opt_get(opts
, "driftfix");
898 if (!strcmp(value
, "slew")) {
899 static GlobalProperty slew_lost_ticks
= {
900 .driver
= "mc146818rtc",
901 .property
= "lost_tick_policy",
905 qdev_prop_register_global(&slew_lost_ticks
);
906 } else if (!strcmp(value
, "none")) {
907 /* discard is default */
909 error_report("invalid option value '%s'", value
);
915 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
917 const char *proc_name
;
919 if (qemu_opt_get(opts
, "debug-threads")) {
920 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
922 qemu_name
= qemu_opt_get(opts
, "guest");
924 proc_name
= qemu_opt_get(opts
, "process");
926 os_set_proc_name(proc_name
);
932 bool defaults_enabled(void)
938 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
940 int fd
, dupfd
, flags
;
942 const char *fd_opaque
= NULL
;
945 fd
= qemu_opt_get_number(opts
, "fd", -1);
946 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
947 fd_opaque
= qemu_opt_get(opts
, "opaque");
950 error_setg(errp
, "fd option is required and must be non-negative");
954 if (fd
<= STDERR_FILENO
) {
955 error_setg(errp
, "fd cannot be a standard I/O stream");
960 * All fds inherited across exec() necessarily have FD_CLOEXEC
961 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
963 flags
= fcntl(fd
, F_GETFD
);
964 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
965 error_setg(errp
, "fd is not valid or already in use");
970 error_setg(errp
, "set option is required and must be non-negative");
974 #ifdef F_DUPFD_CLOEXEC
975 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
979 qemu_set_cloexec(dupfd
);
983 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
987 /* add the duplicate fd, and optionally the opaque string, to the fd set */
988 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, !!fd_opaque
, fd_opaque
,
995 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
999 fd
= qemu_opt_get_number(opts
, "fd", -1);
1006 /***********************************************************/
1007 /* QEMU Block devices */
1009 #define HD_OPTS "media=disk"
1010 #define CDROM_OPTS "media=cdrom"
1012 #define PFLASH_OPTS ""
1016 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1018 BlockInterfaceType
*block_default_type
= opaque
;
1020 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
1023 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1025 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
1026 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
1031 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
1032 int index
, const char *optstr
)
1037 if (!enable
|| drive_get_by_index(type
, index
)) {
1041 opts
= drive_add(type
, index
, NULL
, optstr
);
1043 drive_enable_snapshot(NULL
, opts
, NULL
);
1046 dinfo
= drive_new(opts
, type
, &error_abort
);
1047 dinfo
->is_default
= true;
1051 typedef struct BlockdevOptionsQueueEntry
{
1052 BlockdevOptions
*bdo
;
1054 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
1055 } BlockdevOptionsQueueEntry
;
1057 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
1059 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
1060 MachineClass
*machine_class
, int snapshot
)
1063 * If the currently selected machine wishes to override the
1064 * units-per-bus property of its default HBA interface type, do so
1067 if (machine_class
->units_per_default_bus
) {
1068 override_max_devs(machine_class
->block_default_type
,
1069 machine_class
->units_per_default_bus
);
1072 /* open the virtual block devices */
1073 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
1074 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
1076 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
1077 loc_push_restore(&bdo
->loc
);
1078 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
1080 qapi_free_BlockdevOptions(bdo
->bdo
);
1084 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
1087 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
1088 &machine_class
->block_default_type
, &error_fatal
)) {
1089 /* We printed help */
1093 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
1095 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
1096 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
1100 static QemuOptsList qemu_smp_opts
= {
1102 .implied_opt_name
= "cpus",
1103 .merge_lists
= true,
1104 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
1108 .type
= QEMU_OPT_NUMBER
,
1111 .type
= QEMU_OPT_NUMBER
,
1114 .type
= QEMU_OPT_NUMBER
,
1117 .type
= QEMU_OPT_NUMBER
,
1120 .type
= QEMU_OPT_NUMBER
,
1123 .type
= QEMU_OPT_NUMBER
,
1125 { /*End of list */ }
1129 static void realtime_init(void)
1132 if (os_mlock() < 0) {
1133 error_report("locking memory failed");
1140 static void configure_msg(QemuOpts
*opts
)
1142 enable_timestamp_msg
= qemu_opt_get_bool(opts
, "timestamp", true);
1146 /* Now we still need this for compatibility with XEN. */
1147 bool has_igd_gfx_passthru
;
1148 static void igd_gfx_passthru(void)
1150 has_igd_gfx_passthru
= current_machine
->igd_gfx_passthru
;
1153 /***********************************************************/
1156 static int usb_device_add(const char *devname
)
1158 USBDevice
*dev
= NULL
;
1160 if (!machine_usb(current_machine
)) {
1164 dev
= usbdevice_create(devname
);
1171 static int usb_parse(const char *cmdline
)
1174 r
= usb_device_add(cmdline
);
1176 error_report("could not add USB device '%s'", cmdline
);
1181 /***********************************************************/
1182 /* machine registration */
1184 MachineState
*current_machine
;
1186 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
1190 for (el
= machines
; el
; el
= el
->next
) {
1191 MachineClass
*mc
= el
->data
;
1193 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
1201 static MachineClass
*find_default_machine(GSList
*machines
)
1205 for (el
= machines
; el
; el
= el
->next
) {
1206 MachineClass
*mc
= el
->data
;
1208 if (mc
->is_default
) {
1216 static int machine_help_func(QemuOpts
*opts
, MachineState
*machine
)
1218 ObjectProperty
*prop
;
1219 ObjectPropertyIterator iter
;
1221 if (!qemu_opt_has_help_opt(opts
)) {
1225 object_property_iter_init(&iter
, OBJECT(machine
));
1226 while ((prop
= object_property_iter_next(&iter
))) {
1231 printf("%s.%s=%s", MACHINE_GET_CLASS(machine
)->name
,
1232 prop
->name
, prop
->type
);
1233 if (prop
->description
) {
1234 printf(" (%s)\n", prop
->description
);
1243 struct VMChangeStateEntry
{
1244 VMChangeStateHandler
*cb
;
1246 QTAILQ_ENTRY(VMChangeStateEntry
) entries
;
1250 static QTAILQ_HEAD(, VMChangeStateEntry
) vm_change_state_head
;
1253 * qemu_add_vm_change_state_handler_prio:
1254 * @cb: the callback to invoke
1255 * @opaque: user data passed to the callback
1256 * @priority: low priorities execute first when the vm runs and the reverse is
1257 * true when the vm stops
1259 * Register a callback function that is invoked when the vm starts or stops
1262 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1264 VMChangeStateEntry
*qemu_add_vm_change_state_handler_prio(
1265 VMChangeStateHandler
*cb
, void *opaque
, int priority
)
1267 VMChangeStateEntry
*e
;
1268 VMChangeStateEntry
*other
;
1270 e
= g_malloc0(sizeof(*e
));
1273 e
->priority
= priority
;
1275 /* Keep list sorted in ascending priority order */
1276 QTAILQ_FOREACH(other
, &vm_change_state_head
, entries
) {
1277 if (priority
< other
->priority
) {
1278 QTAILQ_INSERT_BEFORE(other
, e
, entries
);
1283 QTAILQ_INSERT_TAIL(&vm_change_state_head
, e
, entries
);
1287 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
1290 return qemu_add_vm_change_state_handler_prio(cb
, opaque
, 0);
1293 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
1295 QTAILQ_REMOVE(&vm_change_state_head
, e
, entries
);
1299 void vm_state_notify(int running
, RunState state
)
1301 VMChangeStateEntry
*e
, *next
;
1303 trace_vm_state_notify(running
, state
, RunState_str(state
));
1306 QTAILQ_FOREACH_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1307 e
->cb(e
->opaque
, running
, state
);
1310 QTAILQ_FOREACH_REVERSE_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1311 e
->cb(e
->opaque
, running
, state
);
1316 static ShutdownCause reset_requested
;
1317 static ShutdownCause shutdown_requested
;
1318 static int shutdown_signal
;
1319 static pid_t shutdown_pid
;
1320 static int powerdown_requested
;
1321 static int debug_requested
;
1322 static int suspend_requested
;
1323 static bool preconfig_exit_requested
= true;
1324 static WakeupReason wakeup_reason
;
1325 static NotifierList powerdown_notifiers
=
1326 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers
);
1327 static NotifierList suspend_notifiers
=
1328 NOTIFIER_LIST_INITIALIZER(suspend_notifiers
);
1329 static NotifierList wakeup_notifiers
=
1330 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers
);
1331 static NotifierList shutdown_notifiers
=
1332 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers
);
1333 static uint32_t wakeup_reason_mask
= ~(1 << QEMU_WAKEUP_REASON_NONE
);
1335 ShutdownCause
qemu_shutdown_requested_get(void)
1337 return shutdown_requested
;
1340 ShutdownCause
qemu_reset_requested_get(void)
1342 return reset_requested
;
1345 static int qemu_shutdown_requested(void)
1347 return atomic_xchg(&shutdown_requested
, SHUTDOWN_CAUSE_NONE
);
1350 static void qemu_kill_report(void)
1352 if (!qtest_driver() && shutdown_signal
) {
1353 if (shutdown_pid
== 0) {
1354 /* This happens for eg ^C at the terminal, so it's worth
1355 * avoiding printing an odd message in that case.
1357 error_report("terminating on signal %d", shutdown_signal
);
1359 char *shutdown_cmd
= qemu_get_pid_name(shutdown_pid
);
1361 error_report("terminating on signal %d from pid " FMT_pid
" (%s)",
1362 shutdown_signal
, shutdown_pid
,
1363 shutdown_cmd
? shutdown_cmd
: "<unknown process>");
1364 g_free(shutdown_cmd
);
1366 shutdown_signal
= 0;
1370 static ShutdownCause
qemu_reset_requested(void)
1372 ShutdownCause r
= reset_requested
;
1374 if (r
&& replay_checkpoint(CHECKPOINT_RESET_REQUESTED
)) {
1375 reset_requested
= SHUTDOWN_CAUSE_NONE
;
1378 return SHUTDOWN_CAUSE_NONE
;
1381 static int qemu_suspend_requested(void)
1383 int r
= suspend_requested
;
1384 if (r
&& replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED
)) {
1385 suspend_requested
= 0;
1391 static WakeupReason
qemu_wakeup_requested(void)
1393 return wakeup_reason
;
1396 static int qemu_powerdown_requested(void)
1398 int r
= powerdown_requested
;
1399 powerdown_requested
= 0;
1403 static int qemu_debug_requested(void)
1405 int r
= debug_requested
;
1406 debug_requested
= 0;
1410 void qemu_exit_preconfig_request(void)
1412 preconfig_exit_requested
= true;
1416 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1418 void qemu_system_reset(ShutdownCause reason
)
1422 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1424 cpu_synchronize_all_states();
1426 if (mc
&& mc
->reset
) {
1427 mc
->reset(current_machine
);
1429 qemu_devices_reset();
1431 if (reason
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1432 qapi_event_send_reset(shutdown_caused_by_guest(reason
), reason
);
1434 cpu_synchronize_all_post_reset();
1438 * Wake the VM after suspend.
1440 static void qemu_system_wakeup(void)
1444 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1446 if (mc
&& mc
->wakeup
) {
1447 mc
->wakeup(current_machine
);
1451 void qemu_system_guest_panicked(GuestPanicInformation
*info
)
1453 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crashed");
1456 current_cpu
->crash_occurred
= true;
1458 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE
,
1460 vm_stop(RUN_STATE_GUEST_PANICKED
);
1462 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF
,
1464 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC
);
1468 if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_HYPER_V
) {
1469 qemu_log_mask(LOG_GUEST_ERROR
, "\nHV crash parameters: (%#"PRIx64
1470 " %#"PRIx64
" %#"PRIx64
" %#"PRIx64
" %#"PRIx64
")\n",
1471 info
->u
.hyper_v
.arg1
,
1472 info
->u
.hyper_v
.arg2
,
1473 info
->u
.hyper_v
.arg3
,
1474 info
->u
.hyper_v
.arg4
,
1475 info
->u
.hyper_v
.arg5
);
1476 } else if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_S390
) {
1477 qemu_log_mask(LOG_GUEST_ERROR
, " on cpu %d: %s\n"
1478 "PSW: 0x%016" PRIx64
" 0x%016" PRIx64
"\n",
1480 S390CrashReason_str(info
->u
.s390
.reason
),
1481 info
->u
.s390
.psw_mask
,
1482 info
->u
.s390
.psw_addr
);
1484 qapi_free_GuestPanicInformation(info
);
1488 void qemu_system_reset_request(ShutdownCause reason
)
1490 if (no_reboot
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1491 shutdown_requested
= reason
;
1493 reset_requested
= reason
;
1496 qemu_notify_event();
1499 static void qemu_system_suspend(void)
1502 notifier_list_notify(&suspend_notifiers
, NULL
);
1503 runstate_set(RUN_STATE_SUSPENDED
);
1504 qapi_event_send_suspend();
1507 void qemu_system_suspend_request(void)
1509 if (runstate_check(RUN_STATE_SUSPENDED
)) {
1512 suspend_requested
= 1;
1514 qemu_notify_event();
1517 void qemu_register_suspend_notifier(Notifier
*notifier
)
1519 notifier_list_add(&suspend_notifiers
, notifier
);
1522 void qemu_system_wakeup_request(WakeupReason reason
, Error
**errp
)
1524 trace_system_wakeup_request(reason
);
1526 if (!runstate_check(RUN_STATE_SUSPENDED
)) {
1528 "Unable to wake up: guest is not in suspended state");
1531 if (!(wakeup_reason_mask
& (1 << reason
))) {
1534 runstate_set(RUN_STATE_RUNNING
);
1535 wakeup_reason
= reason
;
1536 qemu_notify_event();
1539 void qemu_system_wakeup_enable(WakeupReason reason
, bool enabled
)
1542 wakeup_reason_mask
|= (1 << reason
);
1544 wakeup_reason_mask
&= ~(1 << reason
);
1548 void qemu_register_wakeup_notifier(Notifier
*notifier
)
1550 notifier_list_add(&wakeup_notifiers
, notifier
);
1553 void qemu_register_wakeup_support(void)
1555 wakeup_suspend_enabled
= true;
1558 bool qemu_wakeup_suspend_enabled(void)
1560 return wakeup_suspend_enabled
;
1563 void qemu_system_killed(int signal
, pid_t pid
)
1565 shutdown_signal
= signal
;
1569 /* Cannot call qemu_system_shutdown_request directly because
1570 * we are in a signal handler.
1572 shutdown_requested
= SHUTDOWN_CAUSE_HOST_SIGNAL
;
1573 qemu_notify_event();
1576 void qemu_system_shutdown_request(ShutdownCause reason
)
1578 trace_qemu_system_shutdown_request(reason
);
1579 replay_shutdown_request(reason
);
1580 shutdown_requested
= reason
;
1581 qemu_notify_event();
1584 static void qemu_system_powerdown(void)
1586 qapi_event_send_powerdown();
1587 notifier_list_notify(&powerdown_notifiers
, NULL
);
1590 static void qemu_system_shutdown(ShutdownCause cause
)
1592 qapi_event_send_shutdown(shutdown_caused_by_guest(cause
), cause
);
1593 notifier_list_notify(&shutdown_notifiers
, &cause
);
1596 void qemu_system_powerdown_request(void)
1598 trace_qemu_system_powerdown_request();
1599 powerdown_requested
= 1;
1600 qemu_notify_event();
1603 void qemu_register_powerdown_notifier(Notifier
*notifier
)
1605 notifier_list_add(&powerdown_notifiers
, notifier
);
1608 void qemu_register_shutdown_notifier(Notifier
*notifier
)
1610 notifier_list_add(&shutdown_notifiers
, notifier
);
1613 void qemu_system_debug_request(void)
1615 debug_requested
= 1;
1616 qemu_notify_event();
1619 static bool main_loop_should_exit(void)
1622 ShutdownCause request
;
1624 if (runstate_check(RUN_STATE_FINISH_MIGRATE
)) {
1627 if (preconfig_exit_requested
) {
1628 if (runstate_check(RUN_STATE_PRECONFIG
)) {
1629 runstate_set(RUN_STATE_PRELAUNCH
);
1631 preconfig_exit_requested
= false;
1634 if (qemu_debug_requested()) {
1635 vm_stop(RUN_STATE_DEBUG
);
1637 if (qemu_suspend_requested()) {
1638 qemu_system_suspend();
1640 request
= qemu_shutdown_requested();
1643 qemu_system_shutdown(request
);
1645 vm_stop(RUN_STATE_SHUTDOWN
);
1650 request
= qemu_reset_requested();
1653 qemu_system_reset(request
);
1655 if (!runstate_check(RUN_STATE_RUNNING
) &&
1656 !runstate_check(RUN_STATE_INMIGRATE
)) {
1657 runstate_set(RUN_STATE_PRELAUNCH
);
1660 if (qemu_wakeup_requested()) {
1662 qemu_system_wakeup();
1663 notifier_list_notify(&wakeup_notifiers
, &wakeup_reason
);
1664 wakeup_reason
= QEMU_WAKEUP_REASON_NONE
;
1666 qapi_event_send_wakeup();
1668 if (qemu_powerdown_requested()) {
1669 qemu_system_powerdown();
1671 if (qemu_vmstop_requested(&r
)) {
1677 static void main_loop(void)
1679 #ifdef CONFIG_PROFILER
1682 while (!main_loop_should_exit()) {
1683 #ifdef CONFIG_PROFILER
1684 ti
= profile_getclock();
1686 main_loop_wait(false);
1687 #ifdef CONFIG_PROFILER
1688 dev_time
+= profile_getclock() - ti
;
1693 static void version(void)
1695 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
1696 QEMU_COPYRIGHT
"\n");
1699 static void help(int exitcode
)
1702 printf("usage: %s [options] [disk_image]\n\n"
1703 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1704 error_get_progname());
1706 #define QEMU_OPTIONS_GENERATE_HELP
1707 #include "qemu-options-wrapper.h"
1709 printf("\nDuring emulation, the following keys are useful:\n"
1710 "ctrl-alt-f toggle full screen\n"
1711 "ctrl-alt-n switch to virtual console 'n'\n"
1712 "ctrl-alt toggle mouse and keyboard grab\n"
1714 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1716 QEMU_HELP_BOTTOM
"\n");
1721 #define HAS_ARG 0x0001
1723 typedef struct QEMUOption
{
1730 static const QEMUOption qemu_options
[] = {
1731 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
1732 #define QEMU_OPTIONS_GENERATE_OPTIONS
1733 #include "qemu-options-wrapper.h"
1737 typedef struct VGAInterfaceInfo
{
1738 const char *opt_name
; /* option name */
1739 const char *name
; /* human-readable name */
1740 /* Class names indicating that support is available.
1741 * If no class is specified, the interface is always available */
1742 const char *class_names
[2];
1745 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
1748 .name
= "no graphic card",
1752 .name
= "standard VGA",
1753 .class_names
= { "VGA", "isa-vga" },
1756 .opt_name
= "cirrus",
1757 .name
= "Cirrus VGA",
1758 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
1761 .opt_name
= "vmware",
1762 .name
= "VMWare SVGA",
1763 .class_names
= { "vmware-svga" },
1766 .opt_name
= "virtio",
1767 .name
= "Virtio VGA",
1768 .class_names
= { "virtio-vga" },
1773 .class_names
= { "qxl-vga" },
1777 .name
= "TCX framebuffer",
1778 .class_names
= { "SUNW,tcx" },
1782 .name
= "CG3 framebuffer",
1783 .class_names
= { "cgthree" },
1786 .opt_name
= "xenfb",
1787 .name
= "Xen paravirtualized framebuffer",
1791 static bool vga_interface_available(VGAInterfaceType t
)
1793 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1795 assert(t
< VGA_TYPE_MAX
);
1796 return !ti
->class_names
[0] ||
1797 object_class_by_name(ti
->class_names
[0]) ||
1798 object_class_by_name(ti
->class_names
[1]);
1802 get_default_vga_model(const MachineClass
*machine_class
)
1804 if (machine_class
->default_display
) {
1805 return machine_class
->default_display
;
1806 } else if (vga_interface_available(VGA_CIRRUS
)) {
1808 } else if (vga_interface_available(VGA_STD
)) {
1815 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1820 if (g_str_equal(p
, "help")) {
1821 const char *def
= get_default_vga_model(machine_class
);
1823 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1824 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1826 if (vga_interface_available(t
) && ti
->opt_name
) {
1827 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1828 g_str_equal(ti
->opt_name
, def
) ? " (default)" : "");
1834 assert(vga_interface_type
== VGA_NONE
);
1835 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1836 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1837 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1838 if (!vga_interface_available(t
)) {
1839 error_report("%s not available", ti
->name
);
1842 vga_interface_type
= t
;
1846 if (t
== VGA_TYPE_MAX
) {
1848 error_report("unknown vga type: %s", p
);
1852 const char *nextopt
;
1854 if (strstart(opts
, ",retrace=", &nextopt
)) {
1856 if (strstart(opts
, "dumb", &nextopt
))
1857 vga_retrace_method
= VGA_RETRACE_DUMB
;
1858 else if (strstart(opts
, "precise", &nextopt
))
1859 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1860 else goto invalid_vga
;
1861 } else goto invalid_vga
;
1866 static void parse_display_qapi(const char *optarg
)
1868 DisplayOptions
*opts
;
1871 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1873 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1874 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1876 qapi_free_DisplayOptions(opts
);
1880 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1882 return QAPI_CLONE(DisplayOptions
, &dpy
);
1885 static void parse_display(const char *p
)
1889 if (strstart(p
, "sdl", &opts
)) {
1891 * sdl DisplayType needs hand-crafted parser instead of
1892 * parse_display_qapi() due to some options not in
1893 * DisplayOptions, specifically:
1895 * Already deprecated.
1896 * - ctrl_grab + alt_grab
1897 * Not clear yet what happens to them long-term. Should
1898 * replaced by something better or deprecated and dropped.
1900 dpy
.type
= DISPLAY_TYPE_SDL
;
1902 const char *nextopt
;
1904 if (strstart(opts
, ",alt_grab=", &nextopt
)) {
1906 if (strstart(opts
, "on", &nextopt
)) {
1908 } else if (strstart(opts
, "off", &nextopt
)) {
1911 goto invalid_sdl_args
;
1913 } else if (strstart(opts
, ",ctrl_grab=", &nextopt
)) {
1915 if (strstart(opts
, "on", &nextopt
)) {
1917 } else if (strstart(opts
, "off", &nextopt
)) {
1920 goto invalid_sdl_args
;
1922 } else if (strstart(opts
, ",window_close=", &nextopt
)) {
1924 dpy
.has_window_close
= true;
1925 if (strstart(opts
, "on", &nextopt
)) {
1926 dpy
.window_close
= true;
1927 } else if (strstart(opts
, "off", &nextopt
)) {
1928 dpy
.window_close
= false;
1930 goto invalid_sdl_args
;
1932 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1935 if (strstart(opts
, "on", &nextopt
)) {
1936 dpy
.gl
= DISPLAYGL_MODE_ON
;
1937 } else if (strstart(opts
, "core", &nextopt
)) {
1938 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1939 } else if (strstart(opts
, "es", &nextopt
)) {
1940 dpy
.gl
= DISPLAYGL_MODE_ES
;
1941 } else if (strstart(opts
, "off", &nextopt
)) {
1942 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1944 goto invalid_sdl_args
;
1948 error_report("invalid SDL option string");
1953 } else if (strstart(p
, "vnc", &opts
)) {
1955 * vnc isn't a (local) DisplayType but a protocol for remote
1959 vnc_parse(opts
+ 1, &error_fatal
);
1961 error_report("VNC requires a display argument vnc=<display>");
1965 parse_display_qapi(p
);
1969 char *qemu_find_file(int type
, const char *name
)
1975 /* Try the name as a straight path first */
1976 if (access(name
, R_OK
) == 0) {
1977 trace_load_file(name
, name
);
1978 return g_strdup(name
);
1982 case QEMU_FILE_TYPE_BIOS
:
1985 case QEMU_FILE_TYPE_KEYMAP
:
1986 subdir
= "keymaps/";
1992 for (i
= 0; i
< data_dir_idx
; i
++) {
1993 buf
= g_strdup_printf("%s/%s%s", data_dir
[i
], subdir
, name
);
1994 if (access(buf
, R_OK
) == 0) {
1995 trace_load_file(name
, buf
);
2003 static void qemu_add_data_dir(const char *path
)
2010 if (data_dir_idx
== ARRAY_SIZE(data_dir
)) {
2013 for (i
= 0; i
< data_dir_idx
; i
++) {
2014 if (strcmp(data_dir
[i
], path
) == 0) {
2015 return; /* duplicate */
2018 data_dir
[data_dir_idx
++] = g_strdup(path
);
2021 static inline bool nonempty_str(const char *str
)
2026 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2030 const char *name
, *file
, *str
;
2031 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
2033 if (fw_cfg
== NULL
) {
2034 error_setg(errp
, "fw_cfg device not available");
2037 name
= qemu_opt_get(opts
, "name");
2038 file
= qemu_opt_get(opts
, "file");
2039 str
= qemu_opt_get(opts
, "string");
2041 /* we need name and either a file or the content string */
2042 if (!(nonempty_str(name
) && (nonempty_str(file
) || nonempty_str(str
)))) {
2043 error_setg(errp
, "invalid argument(s)");
2046 if (nonempty_str(file
) && nonempty_str(str
)) {
2047 error_setg(errp
, "file and string are mutually exclusive");
2050 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
2051 error_setg(errp
, "name too long (max. %d char)",
2052 FW_CFG_MAX_FILE_PATH
- 1);
2055 if (strncmp(name
, "opt/", 4) != 0) {
2056 warn_report("externally provided fw_cfg item names "
2057 "should be prefixed with \"opt/\"");
2059 if (nonempty_str(str
)) {
2060 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
2061 buf
= g_memdup(str
, size
);
2064 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
2065 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
2070 /* For legacy, keep user files in a specific global order. */
2071 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
2072 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
2073 fw_cfg_reset_order_override(fw_cfg
);
2077 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2079 return qdev_device_help(opts
);
2082 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2086 dev
= qdev_device_add(opts
, errp
);
2087 if (!dev
&& *errp
) {
2088 error_report_err(*errp
);
2091 object_unref(OBJECT(dev
));
2096 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2098 Error
*local_err
= NULL
;
2100 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
2102 error_propagate(errp
, local_err
);
2110 #ifdef CONFIG_VIRTFS
2111 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2113 return qemu_fsdev_add(opts
, errp
);
2117 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2121 bool pretty
= false;
2122 const char *chardev
;
2125 mode
= qemu_opt_get(opts
, "mode");
2129 if (strcmp(mode
, "readline") == 0) {
2131 } else if (strcmp(mode
, "control") == 0) {
2134 error_setg(errp
, "unknown monitor mode \"%s\"", mode
);
2138 if (!qmp
&& qemu_opt_get(opts
, "pretty")) {
2139 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2140 "and will be removed in future versions");
2142 if (qemu_opt_get_bool(opts
, "pretty", 0)) {
2146 chardev
= qemu_opt_get(opts
, "chardev");
2148 error_report("chardev is required");
2151 chr
= qemu_chr_find(chardev
);
2153 error_setg(errp
, "chardev \"%s\" not found", chardev
);
2158 monitor_init_qmp(chr
, pretty
);
2160 monitor_init_hmp(chr
, true);
2165 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
2167 static int monitor_device_index
= 0;
2172 if (strstart(optarg
, "chardev:", &p
)) {
2173 snprintf(label
, sizeof(label
), "%s", p
);
2175 snprintf(label
, sizeof(label
), "compat_monitor%d",
2176 monitor_device_index
);
2177 opts
= qemu_chr_parse_compat(label
, optarg
, true);
2179 error_report("parse error: %s", optarg
);
2184 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
2185 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
2186 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
2187 if (!strcmp(mode
, "control")) {
2188 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
2190 assert(pretty
== false);
2192 monitor_device_index
++;
2195 struct device_config
{
2197 DEV_USB
, /* -usbdevice */
2198 DEV_SERIAL
, /* -serial */
2199 DEV_PARALLEL
, /* -parallel */
2200 DEV_DEBUGCON
, /* -debugcon */
2201 DEV_GDB
, /* -gdb, -s */
2202 DEV_SCLP
, /* s390 sclp */
2204 const char *cmdline
;
2206 QTAILQ_ENTRY(device_config
) next
;
2209 static QTAILQ_HEAD(, device_config
) device_configs
=
2210 QTAILQ_HEAD_INITIALIZER(device_configs
);
2212 static void add_device_config(int type
, const char *cmdline
)
2214 struct device_config
*conf
;
2216 conf
= g_malloc0(sizeof(*conf
));
2218 conf
->cmdline
= cmdline
;
2219 loc_save(&conf
->loc
);
2220 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
2223 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
2225 struct device_config
*conf
;
2228 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
2229 if (conf
->type
!= type
)
2231 loc_push_restore(&conf
->loc
);
2232 rc
= func(conf
->cmdline
);
2233 loc_pop(&conf
->loc
);
2241 static int serial_parse(const char *devname
)
2243 int index
= num_serial_hds
;
2246 if (strcmp(devname
, "none") == 0)
2248 snprintf(label
, sizeof(label
), "serial%d", index
);
2249 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
2251 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2252 if (!serial_hds
[index
]) {
2253 error_report("could not connect serial device"
2254 " to character backend '%s'", devname
);
2261 Chardev
*serial_hd(int i
)
2264 if (i
< num_serial_hds
) {
2265 return serial_hds
[i
];
2270 int serial_max_hds(void)
2272 return num_serial_hds
;
2275 static int parallel_parse(const char *devname
)
2277 static int index
= 0;
2280 if (strcmp(devname
, "none") == 0)
2282 if (index
== MAX_PARALLEL_PORTS
) {
2283 error_report("too many parallel ports");
2286 snprintf(label
, sizeof(label
), "parallel%d", index
);
2287 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2288 if (!parallel_hds
[index
]) {
2289 error_report("could not connect parallel device"
2290 " to character backend '%s'", devname
);
2297 static int debugcon_parse(const char *devname
)
2301 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
2302 error_report("invalid character backend '%s'", devname
);
2305 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
2307 error_report("already have a debugcon device");
2310 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
2311 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
2315 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
2317 const MachineClass
*mc1
= a
, *mc2
= b
;
2320 if (mc1
->family
== NULL
) {
2321 if (mc2
->family
== NULL
) {
2322 /* Compare standalone machine types against each other; they sort
2323 * in increasing order.
2325 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
2326 object_class_get_name(OBJECT_CLASS(mc2
)));
2329 /* Standalone machine types sort after families. */
2333 if (mc2
->family
== NULL
) {
2334 /* Families sort before standalone machine types. */
2338 /* Families sort between each other alphabetically increasingly. */
2339 res
= strcmp(mc1
->family
, mc2
->family
);
2344 /* Within the same family, machine types sort in decreasing order. */
2345 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
2346 object_class_get_name(OBJECT_CLASS(mc1
)));
2349 static MachineClass
*machine_parse(const char *name
, GSList
*machines
)
2354 if (is_help_option(name
)) {
2355 printf("Supported machines are:\n");
2356 machines
= g_slist_sort(machines
, machine_class_cmp
);
2357 for (el
= machines
; el
; el
= el
->next
) {
2358 MachineClass
*mc
= el
->data
;
2360 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
2362 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
2363 mc
->is_default
? " (default)" : "",
2364 mc
->deprecation_reason
? " (deprecated)" : "");
2369 mc
= find_machine(name
, machines
);
2371 error_report("unsupported machine type");
2372 error_printf("Use -machine help to list supported machines\n");
2378 void qemu_add_exit_notifier(Notifier
*notify
)
2380 notifier_list_add(&exit_notifiers
, notify
);
2383 void qemu_remove_exit_notifier(Notifier
*notify
)
2385 notifier_remove(notify
);
2388 static void qemu_run_exit_notifiers(void)
2390 notifier_list_notify(&exit_notifiers
, NULL
);
2393 static const char *pid_file
;
2394 static Notifier qemu_unlink_pidfile_notifier
;
2396 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
2403 bool machine_init_done
;
2405 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
2407 notifier_list_add(&machine_init_done_notifiers
, notify
);
2408 if (machine_init_done
) {
2409 notify
->notify(notify
, NULL
);
2413 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
2415 notifier_remove(notify
);
2418 static void qemu_run_machine_init_done_notifiers(void)
2420 machine_init_done
= true;
2421 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
2424 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
2425 const char **poptarg
, int *poptind
)
2427 const QEMUOption
*popt
;
2428 int optind
= *poptind
;
2429 char *r
= argv
[optind
];
2432 loc_set_cmdline(argv
, optind
, 1);
2434 /* Treat --foo the same as -foo. */
2437 popt
= qemu_options
;
2440 error_report("invalid option");
2443 if (!strcmp(popt
->name
, r
+ 1))
2447 if (popt
->flags
& HAS_ARG
) {
2448 if (optind
>= argc
) {
2449 error_report("requires an argument");
2452 optarg
= argv
[optind
++];
2453 loc_set_cmdline(argv
, optind
- 2, 2);
2464 static MachineClass
*select_machine(void)
2466 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
2467 MachineClass
*machine_class
= find_default_machine(machines
);
2472 loc_push_none(&loc
);
2474 opts
= qemu_get_machine_opts();
2475 qemu_opts_loc_restore(opts
);
2477 optarg
= qemu_opt_get(opts
, "type");
2479 machine_class
= machine_parse(optarg
, machines
);
2482 if (!machine_class
) {
2483 error_report("No machine specified, and there is no default");
2484 error_printf("Use -machine help to list supported machines\n");
2489 g_slist_free(machines
);
2490 return machine_class
;
2493 static int machine_set_property(void *opaque
,
2494 const char *name
, const char *value
,
2497 Object
*obj
= OBJECT(opaque
);
2498 Error
*local_err
= NULL
;
2501 if (strcmp(name
, "type") == 0) {
2505 qom_name
= g_strdup(name
);
2506 for (p
= qom_name
; *p
; p
++) {
2512 object_property_parse(obj
, value
, qom_name
, &local_err
);
2516 error_propagate(errp
, local_err
);
2525 * Initial object creation happens before all other
2526 * QEMU data types are created. The majority of objects
2527 * can be created at this point. The rng-egd object
2528 * cannot be created here, as it depends on the chardev
2531 static bool object_create_initial(const char *type
, QemuOpts
*opts
)
2533 if (user_creatable_print_help(type
, opts
)) {
2538 * Objects should not be made "delayed" without a reason. If you
2539 * add one, state the reason in a comment!
2542 /* Reason: rng-egd property "chardev" */
2543 if (g_str_equal(type
, "rng-egd")) {
2547 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2548 /* Reason: cryptodev-vhost-user property "chardev" */
2549 if (g_str_equal(type
, "cryptodev-vhost-user")) {
2555 * Reason: filter-* property "netdev" etc.
2557 if (g_str_equal(type
, "filter-buffer") ||
2558 g_str_equal(type
, "filter-dump") ||
2559 g_str_equal(type
, "filter-mirror") ||
2560 g_str_equal(type
, "filter-redirector") ||
2561 g_str_equal(type
, "colo-compare") ||
2562 g_str_equal(type
, "filter-rewriter") ||
2563 g_str_equal(type
, "filter-replay")) {
2567 /* Memory allocation by backends needs to be done
2568 * after configure_accelerator() (due to the tcg_enabled()
2569 * checks at memory_region_init_*()).
2571 * Also, allocation of large amounts of memory may delay
2572 * chardev initialization for too long, and trigger timeouts
2573 * on software that waits for a monitor socket to be created
2576 if (g_str_has_prefix(type
, "memory-backend-")) {
2585 * The remainder of object creation happens after the
2586 * creation of chardev, fsdev, net clients and device data types.
2588 static bool object_create_delayed(const char *type
, QemuOpts
*opts
)
2590 return !object_create_initial(type
, opts
);
2594 static void set_memory_options(uint64_t *ram_slots
, ram_addr_t
*maxram_size
,
2598 const char *mem_str
;
2599 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2600 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2603 loc_push_none(&loc
);
2604 qemu_opts_loc_restore(opts
);
2607 mem_str
= qemu_opt_get(opts
, "size");
2610 error_report("missing 'size' option value");
2614 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2616 /* Fix up legacy suffix-less format */
2617 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2618 uint64_t overflow_check
= sz
;
2621 if (sz
/ MiB
!= overflow_check
) {
2622 error_report("too large 'size' option value");
2628 /* backward compatibility behaviour for case "-m 0" */
2630 sz
= default_ram_size
;
2633 sz
= QEMU_ALIGN_UP(sz
, 8192);
2635 if (ram_size
!= sz
) {
2636 error_report("ram size too large");
2640 /* store value for the future use */
2641 qemu_opt_set_number(opts
, "size", ram_size
, &error_abort
);
2642 *maxram_size
= ram_size
;
2644 if (qemu_opt_get(opts
, "maxmem")) {
2647 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2648 slots
= qemu_opt_get_number(opts
, "slots", 0);
2649 if (sz
< ram_size
) {
2650 error_report("invalid value of -m option maxmem: "
2651 "maximum memory size (0x%" PRIx64
") must be at least "
2652 "the initial memory size (0x" RAM_ADDR_FMT
")",
2655 } else if (slots
&& sz
== ram_size
) {
2656 error_report("invalid value of -m option maxmem: "
2657 "memory slots were specified but maximum memory size "
2658 "(0x%" PRIx64
") is equal to the initial memory size "
2659 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2665 } else if (qemu_opt_get(opts
, "slots")) {
2666 error_report("invalid -m option value: missing 'maxmem' option");
2673 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2677 g
= g_malloc0(sizeof(*g
));
2678 g
->driver
= qemu_opt_get(opts
, "driver");
2679 g
->property
= qemu_opt_get(opts
, "property");
2680 g
->value
= qemu_opt_get(opts
, "value");
2681 qdev_prop_register_global(g
);
2685 static int qemu_read_default_config_file(void)
2689 ret
= qemu_read_config_file(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2690 if (ret
< 0 && ret
!= -ENOENT
) {
2697 static void user_register_global_props(void)
2699 qemu_opts_foreach(qemu_find_opts("global"),
2700 global_init_func
, NULL
, NULL
);
2703 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2705 configure_icount(opts
, errp
);
2709 int main(int argc
, char **argv
, char **envp
)
2712 int snapshot
, linux_boot
;
2713 const char *initrd_filename
;
2714 const char *kernel_filename
, *kernel_cmdline
;
2715 const char *boot_order
= NULL
;
2716 const char *boot_once
= NULL
;
2718 QemuOpts
*opts
, *machine_opts
;
2719 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2720 QemuOptsList
*olist
;
2723 const char *loadvm
= NULL
;
2724 MachineClass
*machine_class
;
2725 const char *cpu_option
;
2726 const char *vga_model
= NULL
;
2727 const char *qtest_chrdev
= NULL
;
2728 const char *qtest_log
= NULL
;
2729 const char *incoming
= NULL
;
2730 bool userconfig
= true;
2731 bool nographic
= false;
2732 int display_remote
= 0;
2733 const char *log_mask
= NULL
;
2734 const char *log_file
= NULL
;
2735 char *trace_file
= NULL
;
2736 ram_addr_t maxram_size
;
2737 uint64_t ram_slots
= 0;
2738 FILE *vmstate_dump_file
= NULL
;
2739 Error
*main_loop_err
= NULL
;
2741 bool list_data_dirs
= false;
2743 BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
2744 QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
2746 os_set_line_buffering();
2748 error_init(argv
[0]);
2749 module_call_init(MODULE_INIT_TRACE
);
2751 qemu_init_cpu_list();
2752 qemu_init_cpu_loop();
2754 qemu_mutex_lock_iothread();
2756 atexit(qemu_run_exit_notifiers
);
2757 qemu_init_exec_dir(argv
[0]);
2759 module_call_init(MODULE_INIT_QOM
);
2761 qemu_add_opts(&qemu_drive_opts
);
2762 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2763 qemu_add_drive_opts(&qemu_common_drive_opts
);
2764 qemu_add_drive_opts(&qemu_drive_opts
);
2765 qemu_add_drive_opts(&bdrv_runtime_opts
);
2766 qemu_add_opts(&qemu_chardev_opts
);
2767 qemu_add_opts(&qemu_device_opts
);
2768 qemu_add_opts(&qemu_netdev_opts
);
2769 qemu_add_opts(&qemu_nic_opts
);
2770 qemu_add_opts(&qemu_net_opts
);
2771 qemu_add_opts(&qemu_rtc_opts
);
2772 qemu_add_opts(&qemu_global_opts
);
2773 qemu_add_opts(&qemu_mon_opts
);
2774 qemu_add_opts(&qemu_trace_opts
);
2775 qemu_plugin_add_opts();
2776 qemu_add_opts(&qemu_option_rom_opts
);
2777 qemu_add_opts(&qemu_machine_opts
);
2778 qemu_add_opts(&qemu_accel_opts
);
2779 qemu_add_opts(&qemu_mem_opts
);
2780 qemu_add_opts(&qemu_smp_opts
);
2781 qemu_add_opts(&qemu_boot_opts
);
2782 qemu_add_opts(&qemu_add_fd_opts
);
2783 qemu_add_opts(&qemu_object_opts
);
2784 qemu_add_opts(&qemu_tpmdev_opts
);
2785 qemu_add_opts(&qemu_realtime_opts
);
2786 qemu_add_opts(&qemu_overcommit_opts
);
2787 qemu_add_opts(&qemu_msg_opts
);
2788 qemu_add_opts(&qemu_name_opts
);
2789 qemu_add_opts(&qemu_numa_opts
);
2790 qemu_add_opts(&qemu_icount_opts
);
2791 qemu_add_opts(&qemu_semihosting_config_opts
);
2792 qemu_add_opts(&qemu_fw_cfg_opts
);
2793 module_call_init(MODULE_INIT_OPTS
);
2796 precopy_infrastructure_init();
2797 postcopy_infrastructure_init();
2798 monitor_init_globals();
2800 if (qcrypto_init(&err
) < 0) {
2801 error_reportf_err(err
, "cannot initialize crypto: ");
2805 QTAILQ_INIT(&vm_change_state_head
);
2806 os_setup_early_signal_handling();
2813 bdrv_init_with_whitelist();
2817 /* first pass of option parsing */
2819 while (optind
< argc
) {
2820 if (argv
[optind
][0] != '-') {
2824 const QEMUOption
*popt
;
2826 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2827 switch (popt
->index
) {
2828 case QEMU_OPTION_nouserconfig
:
2836 if (qemu_read_default_config_file() < 0) {
2841 /* second pass of option parsing */
2846 if (argv
[optind
][0] != '-') {
2847 loc_set_cmdline(argv
, optind
, 1);
2848 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2850 const QEMUOption
*popt
;
2852 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2853 if (!(popt
->arch_mask
& arch_type
)) {
2854 error_report("Option not supported for this target");
2857 switch(popt
->index
) {
2858 case QEMU_OPTION_cpu
:
2859 /* hw initialization will check this */
2860 cpu_option
= optarg
;
2862 case QEMU_OPTION_hda
:
2863 case QEMU_OPTION_hdb
:
2864 case QEMU_OPTION_hdc
:
2865 case QEMU_OPTION_hdd
:
2866 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2869 case QEMU_OPTION_blockdev
:
2872 BlockdevOptionsQueueEntry
*bdo
;
2874 v
= qobject_input_visitor_new_str(optarg
, "driver",
2877 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2878 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2881 loc_save(&bdo
->loc
);
2882 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2885 case QEMU_OPTION_drive
:
2886 if (drive_def(optarg
) == NULL
) {
2890 case QEMU_OPTION_set
:
2891 if (qemu_set_option(optarg
) != 0)
2894 case QEMU_OPTION_global
:
2895 if (qemu_global_option(optarg
) != 0)
2898 case QEMU_OPTION_mtdblock
:
2899 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2901 case QEMU_OPTION_sd
:
2902 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2904 case QEMU_OPTION_pflash
:
2905 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2907 case QEMU_OPTION_snapshot
:
2909 Error
*blocker
= NULL
;
2911 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
2913 replay_add_blocker(blocker
);
2916 case QEMU_OPTION_numa
:
2917 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2923 case QEMU_OPTION_display
:
2924 parse_display(optarg
);
2926 case QEMU_OPTION_nographic
:
2927 olist
= qemu_find_opts("machine");
2928 qemu_opts_parse_noisily(olist
, "graphics=off", false);
2930 dpy
.type
= DISPLAY_TYPE_NONE
;
2932 case QEMU_OPTION_curses
:
2933 #ifdef CONFIG_CURSES
2934 dpy
.type
= DISPLAY_TYPE_CURSES
;
2936 error_report("curses or iconv support is disabled");
2940 case QEMU_OPTION_portrait
:
2941 graphic_rotate
= 90;
2943 case QEMU_OPTION_rotate
:
2944 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2945 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2946 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2947 error_report("only 90, 180, 270 deg rotation is available");
2951 case QEMU_OPTION_kernel
:
2952 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg
,
2955 case QEMU_OPTION_initrd
:
2956 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg
,
2959 case QEMU_OPTION_append
:
2960 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg
,
2963 case QEMU_OPTION_dtb
:
2964 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg
,
2967 case QEMU_OPTION_cdrom
:
2968 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2970 case QEMU_OPTION_boot
:
2971 opts
= qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
2977 case QEMU_OPTION_fda
:
2978 case QEMU_OPTION_fdb
:
2979 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2982 case QEMU_OPTION_no_fd_bootchk
:
2985 case QEMU_OPTION_netdev
:
2987 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
2991 case QEMU_OPTION_nic
:
2993 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
2997 case QEMU_OPTION_net
:
2999 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
3003 #ifdef CONFIG_LIBISCSI
3004 case QEMU_OPTION_iscsi
:
3005 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3012 case QEMU_OPTION_audio_help
:
3013 audio_legacy_help();
3016 case QEMU_OPTION_audiodev
:
3017 audio_parse_option(optarg
);
3019 case QEMU_OPTION_soundhw
:
3020 select_soundhw (optarg
);
3025 case QEMU_OPTION_version
:
3030 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3037 case QEMU_OPTION_tpmdev
:
3038 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3043 case QEMU_OPTION_mempath
:
3046 case QEMU_OPTION_mem_prealloc
:
3055 case QEMU_OPTION_DFILTER
:
3056 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3058 case QEMU_OPTION_seed
:
3059 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3062 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3064 case QEMU_OPTION_gdb
:
3065 add_device_config(DEV_GDB
, optarg
);
3068 if (is_help_option(optarg
)) {
3069 list_data_dirs
= true;
3071 qemu_add_data_dir(optarg
);
3074 case QEMU_OPTION_bios
:
3075 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg
,
3078 case QEMU_OPTION_singlestep
:
3085 keyboard_layout
= optarg
;
3087 case QEMU_OPTION_vga
:
3096 w
= strtol(p
, (char **)&p
, 10);
3099 error_report("invalid resolution or depth");
3105 h
= strtol(p
, (char **)&p
, 10);
3110 depth
= strtol(p
, (char **)&p
, 10);
3111 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3112 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3113 depth
!= 24 && depth
!= 32)
3115 } else if (*p
== '\0') {
3116 depth
= graphic_depth
;
3123 graphic_depth
= depth
;
3126 case QEMU_OPTION_echr
:
3129 term_escape_char
= strtol(optarg
, &r
, 0);
3131 printf("Bad argument to echr\n");
3134 case QEMU_OPTION_monitor
:
3135 default_monitor
= 0;
3136 if (strncmp(optarg
, "none", 4)) {
3137 monitor_parse(optarg
, "readline", false);
3140 case QEMU_OPTION_qmp
:
3141 monitor_parse(optarg
, "control", false);
3142 default_monitor
= 0;
3144 case QEMU_OPTION_qmp_pretty
:
3145 monitor_parse(optarg
, "control", true);
3146 default_monitor
= 0;
3148 case QEMU_OPTION_mon
:
3149 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3154 default_monitor
= 0;
3156 case QEMU_OPTION_chardev
:
3157 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3163 case QEMU_OPTION_fsdev
:
3164 olist
= qemu_find_opts("fsdev");
3166 error_report("fsdev support is disabled");
3169 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3174 case QEMU_OPTION_virtfs
: {
3177 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3180 olist
= qemu_find_opts("virtfs");
3182 error_report("virtfs support is disabled");
3185 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3190 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3191 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3192 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3195 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3196 qemu_opts_id(opts
) ?:
3197 qemu_opt_get(opts
, "mount_tag"),
3200 error_report("duplicate or invalid fsdev id: %s",
3201 qemu_opt_get(opts
, "mount_tag"));
3205 writeout
= qemu_opt_get(opts
, "writeout");
3207 #ifdef CONFIG_SYNC_FILE_RANGE
3208 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3210 error_report("writeout=immediate not supported "
3211 "on this platform");
3215 qemu_opt_set(fsdev
, "fsdriver",
3216 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3217 path
= qemu_opt_get(opts
, "path");
3219 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3221 security_model
= qemu_opt_get(opts
, "security_model");
3222 if (security_model
) {
3223 qemu_opt_set(fsdev
, "security_model", security_model
,
3226 socket
= qemu_opt_get(opts
, "socket");
3228 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3230 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3232 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3235 qemu_opt_set_bool(fsdev
, "readonly",
3236 qemu_opt_get_bool(opts
, "readonly", 0),
3238 multidevs
= qemu_opt_get(opts
, "multidevs");
3240 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3242 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3244 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3245 qemu_opt_set(device
, "fsdev",
3246 qemu_opts_id(fsdev
), &error_abort
);
3247 qemu_opt_set(device
, "mount_tag",
3248 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3251 case QEMU_OPTION_serial
:
3252 add_device_config(DEV_SERIAL
, optarg
);
3254 if (strncmp(optarg
, "mon:", 4) == 0) {
3255 default_monitor
= 0;
3258 case QEMU_OPTION_watchdog
:
3260 error_report("only one watchdog option may be given");
3265 case QEMU_OPTION_watchdog_action
:
3266 if (select_watchdog_action(optarg
) == -1) {
3267 error_report("unknown -watchdog-action parameter");
3271 case QEMU_OPTION_parallel
:
3272 add_device_config(DEV_PARALLEL
, optarg
);
3273 default_parallel
= 0;
3274 if (strncmp(optarg
, "mon:", 4) == 0) {
3275 default_monitor
= 0;
3278 case QEMU_OPTION_debugcon
:
3279 add_device_config(DEV_DEBUGCON
, optarg
);
3281 case QEMU_OPTION_loadvm
:
3284 case QEMU_OPTION_full_screen
:
3285 dpy
.has_full_screen
= true;
3286 dpy
.full_screen
= true;
3288 case QEMU_OPTION_alt_grab
:
3291 case QEMU_OPTION_ctrl_grab
:
3294 case QEMU_OPTION_no_quit
:
3295 dpy
.has_window_close
= true;
3296 dpy
.window_close
= false;
3298 case QEMU_OPTION_sdl
:
3300 dpy
.type
= DISPLAY_TYPE_SDL
;
3303 error_report("SDL support is disabled");
3306 case QEMU_OPTION_pidfile
:
3309 case QEMU_OPTION_win2k_hack
:
3310 win2k_install_hack
= 1;
3312 case QEMU_OPTION_acpitable
:
3313 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3318 acpi_table_add(opts
, &error_fatal
);
3320 case QEMU_OPTION_smbios
:
3321 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3326 smbios_entry_add(opts
, &error_fatal
);
3328 case QEMU_OPTION_fwcfg
:
3329 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3335 case QEMU_OPTION_preconfig
:
3336 preconfig_exit_requested
= false;
3338 case QEMU_OPTION_enable_kvm
:
3339 olist
= qemu_find_opts("machine");
3340 qemu_opts_parse_noisily(olist
, "accel=kvm", false);
3343 case QEMU_OPTION_machine
:
3344 olist
= qemu_find_opts("machine");
3345 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3350 case QEMU_OPTION_no_kvm
:
3351 olist
= qemu_find_opts("machine");
3352 qemu_opts_parse_noisily(olist
, "accel=tcg", false);
3354 case QEMU_OPTION_accel
:
3355 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3357 optarg
= qemu_opt_get(accel_opts
, "accel");
3358 if (!optarg
|| is_help_option(optarg
)) {
3359 printf("Accelerators supported in QEMU binary:\n");
3360 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3362 for (el
= accel_list
; el
; el
= el
->next
) {
3363 gchar
*typename
= g_strdup(object_class_get_name(
3364 OBJECT_CLASS(el
->data
)));
3365 /* omit qtest which is used for tests only */
3366 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3367 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3368 gchar
**optname
= g_strsplit(typename
,
3369 ACCEL_CLASS_SUFFIX
, 0);
3370 printf("%s\n", optname
[0]);
3375 g_slist_free(accel_list
);
3378 if (optarg
&& strchr(optarg
, ':')) {
3379 error_report("Don't use ':' with -accel, "
3380 "use -M accel=... for now instead");
3383 opts
= qemu_opts_create(qemu_find_opts("machine"), NULL
,
3384 false, &error_abort
);
3385 qemu_opt_set(opts
, "accel", optarg
, &error_abort
);
3387 case QEMU_OPTION_usb
:
3388 olist
= qemu_find_opts("machine");
3389 qemu_opts_parse_noisily(olist
, "usb=on", false);
3391 case QEMU_OPTION_usbdevice
:
3392 error_report("'-usbdevice' is deprecated, please use "
3393 "'-device usb-...' instead");
3394 olist
= qemu_find_opts("machine");
3395 qemu_opts_parse_noisily(olist
, "usb=on", false);
3396 add_device_config(DEV_USB
, optarg
);
3398 case QEMU_OPTION_device
:
3399 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3404 case QEMU_OPTION_smp
:
3405 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3410 case QEMU_OPTION_vnc
:
3411 vnc_parse(optarg
, &error_fatal
);
3413 case QEMU_OPTION_no_acpi
:
3416 case QEMU_OPTION_no_hpet
:
3419 case QEMU_OPTION_no_reboot
:
3422 case QEMU_OPTION_no_shutdown
:
3425 case QEMU_OPTION_show_cursor
:
3428 case QEMU_OPTION_uuid
:
3429 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3430 error_report("failed to parse UUID string: wrong format");
3433 qemu_uuid_set
= true;
3435 case QEMU_OPTION_option_rom
:
3436 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3437 error_report("too many option ROMs");
3440 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3445 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3446 option_rom
[nb_option_roms
].bootindex
=
3447 qemu_opt_get_number(opts
, "bootindex", -1);
3448 if (!option_rom
[nb_option_roms
].name
) {
3449 error_report("Option ROM file is not specified");
3454 case QEMU_OPTION_semihosting
:
3455 qemu_semihosting_enable();
3457 case QEMU_OPTION_semihosting_config
:
3458 if (qemu_semihosting_config_options(optarg
) != 0) {
3462 case QEMU_OPTION_name
:
3463 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3469 case QEMU_OPTION_prom_env
:
3470 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3471 error_report("too many prom variables");
3474 prom_envs
[nb_prom_envs
] = optarg
;
3477 case QEMU_OPTION_old_param
:
3480 case QEMU_OPTION_rtc
:
3481 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3487 case QEMU_OPTION_tb_size
:
3489 error_report("TCG is disabled");
3492 if (qemu_strtoul(optarg
, NULL
, 0, &tcg_tb_size
) < 0) {
3493 error_report("Invalid argument to -tb-size");
3497 case QEMU_OPTION_icount
:
3498 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3504 case QEMU_OPTION_incoming
:
3506 runstate_set(RUN_STATE_INMIGRATE
);
3510 case QEMU_OPTION_only_migratable
:
3511 only_migratable
= 1;
3513 case QEMU_OPTION_nodefaults
:
3516 case QEMU_OPTION_xen_domid
:
3517 if (!(xen_available())) {
3518 error_report("Option not supported for this target");
3521 xen_domid
= atoi(optarg
);
3523 case QEMU_OPTION_xen_attach
:
3524 if (!(xen_available())) {
3525 error_report("Option not supported for this target");
3528 xen_mode
= XEN_ATTACH
;
3530 case QEMU_OPTION_xen_domid_restrict
:
3531 if (!(xen_available())) {
3532 error_report("Option not supported for this target");
3535 xen_domid_restrict
= true;
3537 case QEMU_OPTION_trace
:
3539 trace_file
= trace_opt_parse(optarg
);
3541 case QEMU_OPTION_plugin
:
3542 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3544 case QEMU_OPTION_readconfig
:
3546 int ret
= qemu_read_config_file(optarg
);
3548 error_report("read config %s: %s", optarg
,
3554 case QEMU_OPTION_spice
:
3555 olist
= qemu_find_opts("spice");
3557 error_report("spice support is disabled");
3560 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3566 case QEMU_OPTION_writeconfig
:
3569 if (strcmp(optarg
, "-") == 0) {
3572 fp
= fopen(optarg
, "w");
3574 error_report("open %s: %s", optarg
,
3579 qemu_config_write(fp
);
3585 case QEMU_OPTION_qtest
:
3586 qtest_chrdev
= optarg
;
3588 case QEMU_OPTION_qtest_log
:
3591 case QEMU_OPTION_sandbox
:
3592 olist
= qemu_find_opts("sandbox");
3594 #ifndef CONFIG_SECCOMP
3595 error_report("-sandbox support is not enabled "
3596 "in this QEMU binary");
3601 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3606 case QEMU_OPTION_add_fd
:
3608 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3614 error_report("File descriptor passing is disabled on this "
3619 case QEMU_OPTION_object
:
3620 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
3626 case QEMU_OPTION_realtime
:
3627 warn_report("'-realtime mlock=...' is deprecated, please use "
3628 "'-overcommit mem-lock=...' instead");
3629 opts
= qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3634 /* Don't override the -overcommit option if set */
3635 enable_mlock
= enable_mlock
||
3636 qemu_opt_get_bool(opts
, "mlock", true);
3638 case QEMU_OPTION_overcommit
:
3639 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3644 /* Don't override the -realtime option if set */
3645 enable_mlock
= enable_mlock
||
3646 qemu_opt_get_bool(opts
, "mem-lock", false);
3647 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3649 case QEMU_OPTION_msg
:
3650 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3655 configure_msg(opts
);
3657 case QEMU_OPTION_dump_vmstate
:
3658 if (vmstate_dump_file
) {
3659 error_report("only one '-dump-vmstate' "
3660 "option may be given");
3663 vmstate_dump_file
= fopen(optarg
, "w");
3664 if (vmstate_dump_file
== NULL
) {
3665 error_report("open %s: %s", optarg
, strerror(errno
));
3669 case QEMU_OPTION_enable_sync_profile
:
3672 case QEMU_OPTION_nouserconfig
:
3673 /* Nothing to be parsed here. Especially, do not error out below. */
3676 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3677 error_report("Option not supported in this build");
3684 * Clear error location left behind by the loop.
3685 * Best done right after the loop. Do not insert code here!
3689 user_register_global_props();
3691 replay_configure(icount_opts
);
3693 if (incoming
&& !preconfig_exit_requested
) {
3694 error_report("'preconfig' and 'incoming' options are "
3695 "mutually exclusive");
3699 configure_rtc(qemu_find_opts_singleton("rtc"));
3701 machine_class
= select_machine();
3702 object_set_machine_compat_props(machine_class
->compat_props
);
3704 set_memory_options(&ram_slots
, &maxram_size
, machine_class
);
3707 rcu_disable_atfork();
3709 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
3710 error_reportf_err(err
, "cannot create PID file: ");
3714 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
3715 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
3717 if (qemu_init_main_loop(&main_loop_err
)) {
3718 error_report_err(main_loop_err
);
3722 #ifdef CONFIG_SECCOMP
3723 olist
= qemu_find_opts_err("sandbox", NULL
);
3725 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
3729 qemu_opts_foreach(qemu_find_opts("name"),
3730 parse_name
, NULL
, &error_fatal
);
3733 qemu_opts_foreach(qemu_find_opts("add-fd"),
3734 parse_add_fd
, NULL
, &error_fatal
);
3736 qemu_opts_foreach(qemu_find_opts("add-fd"),
3737 cleanup_add_fd
, NULL
, &error_fatal
);
3740 current_machine
= MACHINE(object_new(object_class_get_name(
3741 OBJECT_CLASS(machine_class
))));
3742 if (machine_help_func(qemu_get_machine_opts(), current_machine
)) {
3745 object_property_add_child(object_get_root(), "machine",
3746 OBJECT(current_machine
), &error_abort
);
3747 object_property_add_child(container_get(OBJECT(current_machine
),
3749 "sysbus", OBJECT(sysbus_get_default()),
3752 if (machine_class
->minimum_page_bits
) {
3753 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
3754 /* This would be a board error: specifying a minimum smaller than
3755 * a target's compile-time fixed setting.
3757 g_assert_not_reached();
3761 cpu_exec_init_all();
3763 if (machine_class
->hw_version
) {
3764 qemu_set_hw_version(machine_class
->hw_version
);
3767 if (cpu_option
&& is_help_option(cpu_option
)) {
3768 list_cpus(cpu_option
);
3772 if (!trace_init_backends()) {
3775 trace_init_file(trace_file
);
3777 /* Open the logfile at this point and set the log mask if necessary.
3780 qemu_set_log_filename(log_file
, &error_fatal
);
3785 mask
= qemu_str_to_log_mask(log_mask
);
3787 qemu_print_log_usage(stdout
);
3795 /* add configured firmware directories */
3796 dirs
= g_strsplit(CONFIG_QEMU_FIRMWAREPATH
, G_SEARCHPATH_SEPARATOR_S
, 0);
3797 for (i
= 0; dirs
[i
] != NULL
; i
++) {
3798 qemu_add_data_dir(dirs
[i
]);
3802 /* try to find datadir relative to the executable path */
3803 dir
= os_find_datadir();
3804 qemu_add_data_dir(dir
);
3807 /* add the datadir specified when building */
3808 qemu_add_data_dir(CONFIG_QEMU_DATADIR
);
3810 /* -L help lists the data directories and exits. */
3811 if (list_data_dirs
) {
3812 for (i
= 0; i
< data_dir_idx
; i
++) {
3813 printf("%s\n", data_dir
[i
]);
3818 /* machine_class: default to UP */
3819 machine_class
->max_cpus
= machine_class
->max_cpus
?: 1;
3820 machine_class
->min_cpus
= machine_class
->min_cpus
?: 1;
3821 machine_class
->default_cpus
= machine_class
->default_cpus
?: 1;
3823 /* default to machine_class->default_cpus */
3824 current_machine
->smp
.cpus
= machine_class
->default_cpus
;
3825 current_machine
->smp
.max_cpus
= machine_class
->default_cpus
;
3826 current_machine
->smp
.cores
= 1;
3827 current_machine
->smp
.threads
= 1;
3829 machine_class
->smp_parse(current_machine
,
3830 qemu_opts_find(qemu_find_opts("smp-opts"), NULL
));
3832 /* sanity-check smp_cpus and max_cpus against machine_class */
3833 if (current_machine
->smp
.cpus
< machine_class
->min_cpus
) {
3834 error_report("Invalid SMP CPUs %d. The min CPUs "
3835 "supported by machine '%s' is %d",
3836 current_machine
->smp
.cpus
,
3837 machine_class
->name
, machine_class
->min_cpus
);
3840 if (current_machine
->smp
.max_cpus
> machine_class
->max_cpus
) {
3841 error_report("Invalid SMP CPUs %d. The max CPUs "
3842 "supported by machine '%s' is %d",
3843 current_machine
->smp
.max_cpus
,
3844 machine_class
->name
, machine_class
->max_cpus
);
3849 * Get the default machine options from the machine if it is not already
3850 * specified either by the configuration file or by the command line.
3852 if (machine_class
->default_machine_opts
) {
3853 qemu_opts_set_defaults(qemu_find_opts("machine"),
3854 machine_class
->default_machine_opts
, 0);
3857 /* process plugin before CPUs are created, but once -smp has been parsed */
3858 if (qemu_plugin_load_list(&plugin_list
)) {
3862 qemu_opts_foreach(qemu_find_opts("device"),
3863 default_driver_check
, NULL
, NULL
);
3864 qemu_opts_foreach(qemu_find_opts("global"),
3865 default_driver_check
, NULL
, NULL
);
3867 if (!vga_model
&& !default_vga
) {
3868 vga_interface_type
= VGA_DEVICE
;
3870 if (!has_defaults
|| machine_class
->no_serial
) {
3873 if (!has_defaults
|| machine_class
->no_parallel
) {
3874 default_parallel
= 0;
3876 if (!has_defaults
|| machine_class
->no_floppy
) {
3879 if (!has_defaults
|| machine_class
->no_cdrom
) {
3882 if (!has_defaults
|| machine_class
->no_sdcard
) {
3885 if (!has_defaults
) {
3886 default_monitor
= 0;
3891 if (is_daemonized()) {
3892 if (!preconfig_exit_requested
) {
3893 error_report("'preconfig' and 'daemonize' options are "
3894 "mutually exclusive");
3898 /* According to documentation and historically, -nographic redirects
3899 * serial port, parallel port and monitor to stdio, which does not work
3900 * with -daemonize. We can redirect these to null instead, but since
3901 * -nographic is legacy, let's just error out.
3902 * We disallow -nographic only if all other ports are not redirected
3903 * explicitly, to not break existing legacy setups which uses
3904 * -nographic _and_ redirects all ports explicitly - this is valid
3905 * usage, -nographic is just a no-op in this case.
3908 && (default_parallel
|| default_serial
|| default_monitor
)) {
3909 error_report("-nographic cannot be used with -daemonize");
3912 #ifdef CONFIG_CURSES
3913 if (dpy
.type
== DISPLAY_TYPE_CURSES
) {
3914 error_report("curses display cannot be used with -daemonize");
3921 if (default_parallel
)
3922 add_device_config(DEV_PARALLEL
, "null");
3923 if (default_serial
&& default_monitor
) {
3924 add_device_config(DEV_SERIAL
, "mon:stdio");
3927 add_device_config(DEV_SERIAL
, "stdio");
3928 if (default_monitor
)
3929 monitor_parse("stdio", "readline", false);
3933 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
3934 if (default_parallel
)
3935 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
3936 if (default_monitor
)
3937 monitor_parse("vc:80Cx24C", "readline", false);
3940 #if defined(CONFIG_VNC)
3941 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
3945 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
3946 if (!qemu_display_find_default(&dpy
)) {
3947 dpy
.type
= DISPLAY_TYPE_NONE
;
3948 #if defined(CONFIG_VNC)
3949 vnc_parse("localhost:0,to=99,id=default", &error_abort
);
3953 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
3954 dpy
.type
= DISPLAY_TYPE_NONE
;
3957 if ((alt_grab
|| ctrl_grab
) && dpy
.type
!= DISPLAY_TYPE_SDL
) {
3958 error_report("-alt-grab and -ctrl-grab are only valid "
3959 "for SDL, ignoring option");
3961 if (dpy
.has_window_close
&&
3962 (dpy
.type
!= DISPLAY_TYPE_GTK
&& dpy
.type
!= DISPLAY_TYPE_SDL
)) {
3963 error_report("-no-quit is only valid for GTK and SDL, "
3967 qemu_display_early_init(&dpy
);
3968 qemu_console_early_init();
3970 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
3971 #if defined(CONFIG_OPENGL)
3972 error_report("OpenGL is not supported by the display");
3974 error_report("OpenGL support is disabled");
3982 qemu_opts_foreach(qemu_find_opts("object"),
3983 user_creatable_add_opts_foreach
,
3984 object_create_initial
, &error_fatal
);
3986 qemu_opts_foreach(qemu_find_opts("chardev"),
3987 chardev_init_func
, NULL
, &error_fatal
);
3988 /* now chardevs have been created we may have semihosting to connect */
3989 qemu_semihosting_connect_chardevs();
3991 #ifdef CONFIG_VIRTFS
3992 qemu_opts_foreach(qemu_find_opts("fsdev"),
3993 fsdev_init_func
, NULL
, &error_fatal
);
3996 if (qemu_opts_foreach(qemu_find_opts("device"),
3997 device_help_func
, NULL
, NULL
)) {
4002 * Note: we need to create block backends before
4003 * machine_set_property(), so machine properties can refer to
4006 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
4008 machine_opts
= qemu_get_machine_opts();
4009 qemu_opt_foreach(machine_opts
, machine_set_property
, current_machine
,
4011 current_machine
->ram_size
= ram_size
;
4012 current_machine
->maxram_size
= maxram_size
;
4013 current_machine
->ram_slots
= ram_slots
;
4016 * Note: uses machine properties such as kernel-irqchip, must run
4017 * after machine_set_property().
4019 qemu_opts_foreach(qemu_find_opts("icount"),
4020 do_configure_icount
, NULL
, &error_fatal
);
4021 configure_accelerator(current_machine
, argv
[0]);
4024 * Beware, QOM objects created before this point miss global and
4025 * compat properties.
4027 * Global properties get set up by qdev_prop_register_global(),
4028 * called from user_register_global_props(), and certain option
4029 * desugaring. Also in CPU feature desugaring (buried in
4030 * parse_cpu_option()), which happens below this point, but may
4031 * only target the CPU type, which can only be created after
4032 * parse_cpu_option() returned the type.
4034 * Machine compat properties: object_set_machine_compat_props().
4035 * Accelerator compat props: object_set_accelerator_compat_props(),
4036 * called from configure_accelerator().
4039 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
4040 error_report("Machine type '%s' is deprecated: %s",
4041 machine_class
->name
, machine_class
->deprecation_reason
);
4045 * Note: creates a QOM object, must run only after global and
4046 * compat properties have been set up.
4048 migration_object_init();
4051 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
4054 machine_opts
= qemu_get_machine_opts();
4055 kernel_filename
= qemu_opt_get(machine_opts
, "kernel");
4056 initrd_filename
= qemu_opt_get(machine_opts
, "initrd");
4057 kernel_cmdline
= qemu_opt_get(machine_opts
, "append");
4058 bios_name
= qemu_opt_get(machine_opts
, "firmware");
4060 opts
= qemu_opts_find(qemu_find_opts("boot-opts"), NULL
);
4062 boot_order
= qemu_opt_get(opts
, "order");
4064 validate_bootdevices(boot_order
, &error_fatal
);
4067 boot_once
= qemu_opt_get(opts
, "once");
4069 validate_bootdevices(boot_once
, &error_fatal
);
4072 boot_menu
= qemu_opt_get_bool(opts
, "menu", boot_menu
);
4073 boot_strict
= qemu_opt_get_bool(opts
, "strict", false);
4077 boot_order
= machine_class
->default_boot_order
;
4080 if (!kernel_cmdline
) {
4081 kernel_cmdline
= "";
4082 current_machine
->kernel_cmdline
= (char *)kernel_cmdline
;
4085 linux_boot
= (kernel_filename
!= NULL
);
4087 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4088 error_report("-append only allowed with -kernel option");
4092 if (!linux_boot
&& initrd_filename
!= NULL
) {
4093 error_report("-initrd only allowed with -kernel option");
4097 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename
) {
4098 /* fall back to the -kernel/-append */
4099 semihosting_arg_fallback(kernel_filename
, kernel_cmdline
);
4102 /* spice needs the timers to be initialized by this point */
4106 if (use_icount
&& !(tcg_enabled() || qtest_enabled())) {
4107 error_report("-icount is not allowed with hardware virtualization");
4111 if (tcg_enabled()) {
4112 qemu_tcg_configure(accel_opts
, &error_fatal
);
4116 QemuOptsList
*net
= qemu_find_opts("net");
4117 qemu_opts_set(net
, NULL
, "type", "nic", &error_abort
);
4119 qemu_opts_set(net
, NULL
, "type", "user", &error_abort
);
4123 if (net_init_clients(&err
) < 0) {
4124 error_report_err(err
);
4128 qemu_opts_foreach(qemu_find_opts("object"),
4129 user_creatable_add_opts_foreach
,
4130 object_create_delayed
, &error_fatal
);
4134 if (!xen_enabled()) {
4135 /* On 32-bit hosts, QEMU is limited by virtual address space */
4136 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
4137 error_report("at most 2047 MB RAM can be simulated");
4144 dirty_bitmap_mig_init();
4146 qemu_opts_foreach(qemu_find_opts("mon"),
4147 mon_init_func
, NULL
, &error_fatal
);
4149 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4151 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4153 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4156 /* If no default VGA is requested, the default is "none". */
4158 vga_model
= get_default_vga_model(machine_class
);
4161 select_vgahw(machine_class
, vga_model
);
4165 i
= select_watchdog(watchdog
);
4167 exit (i
== 1 ? 1 : 0);
4170 /* This checkpoint is required by replay to separate prior clock
4171 reading from the other reads, because timer polling functions query
4172 clock values from the log. */
4173 replay_checkpoint(CHECKPOINT_INIT
);
4174 qdev_machine_init();
4176 current_machine
->boot_order
= boot_order
;
4178 /* parse features once if machine provides default cpu_type */
4179 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
4181 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
4183 parse_numa_opts(current_machine
);
4185 /* do monitor/qmp handling at preconfig state if requested */
4188 audio_init_audiodevs();
4190 /* from here on runstate is RUN_STATE_PRELAUNCH */
4191 machine_run_board_init(current_machine
);
4197 if (hax_enabled()) {
4201 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4202 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
4204 /* init USB devices */
4205 if (machine_usb(current_machine
)) {
4206 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4210 /* Check if IGD GFX passthrough. */
4213 /* init generic devices */
4214 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
4215 qemu_opts_foreach(qemu_find_opts("device"),
4216 device_init_func
, NULL
, &error_fatal
);
4218 cpu_synchronize_all_post_init();
4220 rom_reset_order_override();
4222 /* Did we create any drives that we failed to create a device for? */
4223 drive_check_orphaned();
4225 /* Don't warn about the default network setup that you get if
4226 * no command line -net or -netdev options are specified. There
4227 * are two cases that we would otherwise complain about:
4228 * (1) board doesn't support a NIC but the implicit "-net nic"
4230 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4231 * sets up a nic that isn't connected to anything.
4233 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
4234 net_check_clients();
4238 qemu_boot_set(boot_once
, &error_fatal
);
4239 qemu_register_reset(restore_boot_order
, g_strdup(boot_order
));
4242 /* init local displays */
4243 ds
= init_displaystate();
4244 qemu_display_init(ds
, &dpy
);
4246 /* must be after terminal init, SDL library changes signal handlers */
4247 os_setup_signal_handling();
4249 /* init remote displays */
4251 qemu_opts_foreach(qemu_find_opts("vnc"),
4252 vnc_init_func
, NULL
, &error_fatal
);
4256 qemu_spice_display_init();
4259 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
4263 qdev_machine_creation_done();
4265 /* TODO: once all bus devices are qdevified, this should be done
4266 * when bus is created by qdev.c */
4267 qemu_register_reset(qbus_reset_all_fn
, sysbus_get_default());
4268 qemu_run_machine_init_done_notifiers();
4270 if (rom_check_and_register_reset() != 0) {
4271 error_report("rom check and register reset failed");
4277 /* This checkpoint is required by replay to separate prior clock
4278 reading from the other reads, because timer polling functions query
4279 clock values from the log. */
4280 replay_checkpoint(CHECKPOINT_RESET
);
4281 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
4282 register_global_state();
4284 Error
*local_err
= NULL
;
4285 if (load_snapshot(loadvm
, &local_err
) < 0) {
4286 error_report_err(local_err
);
4291 if (replay_mode
!= REPLAY_MODE_NONE
) {
4292 replay_vmstate_init();
4295 qdev_prop_check_globals();
4296 if (vmstate_dump_file
) {
4298 dump_vmstate_json_to_file(vmstate_dump_file
);
4303 Error
*local_err
= NULL
;
4304 qemu_start_incoming_migration(incoming
, &local_err
);
4306 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
4309 } else if (autostart
) {
4313 accel_setup_post(current_machine
);
4318 gdbserver_cleanup();
4321 * cleaning up the migration object cancels any existing migration
4322 * try to do this early so that it also stops using devices.
4324 migration_shutdown();
4327 * We must cancel all block jobs while the block layer is drained,
4328 * or cancelling will be affected by throttling and thus may block
4329 * for an extended period of time.
4330 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4331 * it in the drained section.
4332 * We do not need to end this section, because we do not want any
4333 * requests happening from here on anyway.
4335 bdrv_drain_all_begin();
4337 /* No more vcpu or device emulation activity beyond this point */
4341 job_cancel_sync_all();
4346 /* vhost-user must be cleaned up before chardevs. */
4352 user_creatable_cleanup();
4353 /* TODO: unref root container, check all devices are ok */