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/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qapi/error.h"
31 #include "qemu-version.h"
32 #include "qemu/cutils.h"
33 #include "qemu/help_option.h"
34 #include "qemu/uuid.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
37 #include "sysemu/seccomp.h"
38 #include "sysemu/tcg.h"
39 #include "sysemu/xen.h"
41 #include "qemu/error-report.h"
42 #include "qemu/sockets.h"
43 #include "sysemu/accel.h"
45 #include "hw/isa/isa.h"
46 #include "hw/scsi/scsi.h"
47 #include "hw/display/vga.h"
48 #include "sysemu/watchdog.h"
49 #include "hw/firmware/smbios.h"
50 #include "hw/acpi/acpi.h"
51 #include "hw/xen/xen.h"
52 #include "hw/loader.h"
53 #include "monitor/qdev.h"
55 #include "net/slirp.h"
56 #include "monitor/monitor.h"
57 #include "ui/console.h"
59 #include "sysemu/sysemu.h"
60 #include "sysemu/numa.h"
61 #include "sysemu/hostmem.h"
62 #include "exec/gdbstub.h"
63 #include "qemu/timer.h"
64 #include "chardev/char.h"
65 #include "qemu/bitmap.h"
67 #include "sysemu/blockdev.h"
68 #include "hw/block/block.h"
69 #include "migration/misc.h"
70 #include "migration/snapshot.h"
71 #include "migration/global_state.h"
72 #include "sysemu/tpm.h"
73 #include "sysemu/dma.h"
74 #include "hw/audio/soundhw.h"
75 #include "audio/audio.h"
76 #include "sysemu/cpus.h"
77 #include "migration/colo.h"
78 #include "migration/postcopy-ram.h"
79 #include "sysemu/kvm.h"
80 #include "sysemu/hax.h"
81 #include "qapi/qobject-input-visitor.h"
82 #include "qemu/option.h"
83 #include "qemu/config-file.h"
84 #include "qemu-options.h"
85 #include "qemu/main-loop.h"
87 #include "fsdev/qemu-fsdev.h"
89 #include "sysemu/qtest.h"
91 #include "disas/disas.h"
93 #include "trace-root.h"
94 #include "trace/control.h"
95 #include "qemu/plugin.h"
96 #include "qemu/queue.h"
97 #include "sysemu/arch_init.h"
99 #include "ui/qemu-spice.h"
100 #include "qapi/string-input-visitor.h"
101 #include "qapi/opts-visitor.h"
102 #include "qapi/clone-visitor.h"
103 #include "qom/object_interfaces.h"
104 #include "hw/semihosting/semihost.h"
105 #include "crypto/init.h"
106 #include "sysemu/replay.h"
107 #include "qapi/qapi-events-run-state.h"
108 #include "qapi/qapi-visit-block-core.h"
109 #include "qapi/qapi-visit-ui.h"
110 #include "qapi/qapi-commands-block-core.h"
111 #include "qapi/qapi-commands-run-state.h"
112 #include "qapi/qapi-commands-ui.h"
113 #include "qapi/qmp/qerror.h"
114 #include "sysemu/iothread.h"
115 #include "qemu/guest-random.h"
117 #define MAX_VIRTIO_CONSOLES 1
119 static const char *data_dir
[16];
120 static int data_dir_idx
;
121 const char *bios_name
= NULL
;
122 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
124 const char* keyboard_layout
= NULL
;
126 bool enable_mlock
= false;
127 bool enable_cpu_pm
= false;
129 NICInfo nd_table
[MAX_NICS
];
135 } rtc_base_type
= RTC_BASE_UTC
;
136 static time_t rtc_ref_start_datetime
;
137 static int rtc_realtime_clock_offset
; /* used only with QEMU_CLOCK_REALTIME */
138 static int rtc_host_datetime_offset
= -1; /* valid & used only with
140 QEMUClockType rtc_clock
;
141 int vga_interface_type
= VGA_NONE
;
142 static DisplayOptions dpy
;
143 static int num_serial_hds
;
144 static Chardev
**serial_hds
;
145 Chardev
*parallel_hds
[MAX_PARALLEL_PORTS
];
146 int win2k_install_hack
= 0;
150 static int no_reboot
;
152 int graphic_rotate
= 0;
153 const char *watchdog
;
154 QEMUOptionRom option_rom
[MAX_OPTION_ROMS
];
157 const char *qemu_name
;
160 unsigned int nb_prom_envs
= 0;
161 const char *prom_envs
[MAX_PROM_ENVS
];
164 uint8_t *boot_splash_filedata
;
165 int only_migratable
; /* turn it off unless user states otherwise */
166 bool wakeup_suspend_enabled
;
168 int icount_align_option
;
170 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
171 * little-endian "wire format" described in the SMBIOS 2.6 specification.
176 static NotifierList exit_notifiers
=
177 NOTIFIER_LIST_INITIALIZER(exit_notifiers
);
179 static NotifierList machine_init_done_notifiers
=
180 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
183 enum xen_mode xen_mode
= XEN_EMULATE
;
184 bool xen_domid_restrict
;
186 static int has_defaults
= 1;
187 static int default_serial
= 1;
188 static int default_parallel
= 1;
189 static int default_monitor
= 1;
190 static int default_floppy
= 1;
191 static int default_cdrom
= 1;
192 static int default_sdcard
= 1;
193 static int default_vga
= 1;
194 static int default_net
= 1;
200 { .driver
= "isa-serial", .flag
= &default_serial
},
201 { .driver
= "isa-parallel", .flag
= &default_parallel
},
202 { .driver
= "isa-fdc", .flag
= &default_floppy
},
203 { .driver
= "floppy", .flag
= &default_floppy
},
204 { .driver
= "ide-cd", .flag
= &default_cdrom
},
205 { .driver
= "ide-hd", .flag
= &default_cdrom
},
206 { .driver
= "ide-drive", .flag
= &default_cdrom
},
207 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
208 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
209 { .driver
= "VGA", .flag
= &default_vga
},
210 { .driver
= "isa-vga", .flag
= &default_vga
},
211 { .driver
= "cirrus-vga", .flag
= &default_vga
},
212 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
213 { .driver
= "vmware-svga", .flag
= &default_vga
},
214 { .driver
= "qxl-vga", .flag
= &default_vga
},
215 { .driver
= "virtio-vga", .flag
= &default_vga
},
216 { .driver
= "ati-vga", .flag
= &default_vga
},
217 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
220 static QemuOptsList qemu_rtc_opts
= {
222 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
227 .type
= QEMU_OPT_STRING
,
230 .type
= QEMU_OPT_STRING
,
233 .type
= QEMU_OPT_STRING
,
235 { /* end of list */ }
239 static QemuOptsList qemu_option_rom_opts
= {
240 .name
= "option-rom",
241 .implied_opt_name
= "romfile",
242 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
246 .type
= QEMU_OPT_NUMBER
,
249 .type
= QEMU_OPT_STRING
,
251 { /* end of list */ }
255 static QemuOptsList qemu_machine_opts
= {
257 .implied_opt_name
= "type",
259 .head
= QTAILQ_HEAD_INITIALIZER(qemu_machine_opts
.head
),
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting machine properties
270 static QemuOptsList qemu_accel_opts
= {
272 .implied_opt_name
= "accel",
273 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
276 * no elements => accept any
277 * sanity checking will happen later
278 * when setting accelerator properties
284 static QemuOptsList qemu_boot_opts
= {
286 .implied_opt_name
= "order",
288 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
292 .type
= QEMU_OPT_STRING
,
295 .type
= QEMU_OPT_STRING
,
298 .type
= QEMU_OPT_BOOL
,
301 .type
= QEMU_OPT_STRING
,
303 .name
= "splash-time",
304 .type
= QEMU_OPT_NUMBER
,
306 .name
= "reboot-timeout",
307 .type
= QEMU_OPT_NUMBER
,
310 .type
= QEMU_OPT_BOOL
,
316 static QemuOptsList qemu_add_fd_opts
= {
318 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
322 .type
= QEMU_OPT_NUMBER
,
323 .help
= "file descriptor of which a duplicate is added to fd set",
326 .type
= QEMU_OPT_NUMBER
,
327 .help
= "ID of the fd set to add fd to",
330 .type
= QEMU_OPT_STRING
,
331 .help
= "free-form string used to describe fd",
333 { /* end of list */ }
337 static QemuOptsList qemu_object_opts
= {
339 .implied_opt_name
= "qom-type",
340 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
346 static QemuOptsList qemu_tpmdev_opts
= {
348 .implied_opt_name
= "type",
349 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
351 /* options are defined in the TPM backends */
352 { /* end of list */ }
356 static QemuOptsList qemu_realtime_opts
= {
358 .head
= QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts
.head
),
362 .type
= QEMU_OPT_BOOL
,
364 { /* end of list */ }
368 static QemuOptsList qemu_overcommit_opts
= {
369 .name
= "overcommit",
370 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
374 .type
= QEMU_OPT_BOOL
,
378 .type
= QEMU_OPT_BOOL
,
380 { /* end of list */ }
384 static QemuOptsList qemu_msg_opts
= {
386 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
390 .type
= QEMU_OPT_BOOL
,
393 .name
= "guest-name",
394 .type
= QEMU_OPT_BOOL
,
395 .help
= "Prepends guest name for error messages but only if "
396 "-name guest is set otherwise option is ignored\n",
398 { /* end of list */ }
402 static QemuOptsList qemu_name_opts
= {
404 .implied_opt_name
= "guest",
406 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
410 .type
= QEMU_OPT_STRING
,
411 .help
= "Sets the name of the guest.\n"
412 "This name will be displayed in the SDL window caption.\n"
413 "The name will also be used for the VNC server",
416 .type
= QEMU_OPT_STRING
,
417 .help
= "Sets the name of the QEMU process, as shown in top etc",
419 .name
= "debug-threads",
420 .type
= QEMU_OPT_BOOL
,
421 .help
= "When enabled, name the individual threads; defaults off.\n"
422 "NOTE: The thread names are for debugging and not a\n"
425 { /* End of list */ }
429 static QemuOptsList qemu_mem_opts
= {
431 .implied_opt_name
= "size",
432 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
437 .type
= QEMU_OPT_SIZE
,
441 .type
= QEMU_OPT_NUMBER
,
445 .type
= QEMU_OPT_SIZE
,
447 { /* end of list */ }
451 static QemuOptsList qemu_icount_opts
= {
453 .implied_opt_name
= "shift",
455 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
459 .type
= QEMU_OPT_STRING
,
462 .type
= QEMU_OPT_BOOL
,
465 .type
= QEMU_OPT_BOOL
,
468 .type
= QEMU_OPT_STRING
,
471 .type
= QEMU_OPT_STRING
,
473 .name
= "rrsnapshot",
474 .type
= QEMU_OPT_STRING
,
476 { /* end of list */ }
480 static QemuOptsList qemu_fw_cfg_opts
= {
482 .implied_opt_name
= "name",
483 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
487 .type
= QEMU_OPT_STRING
,
488 .help
= "Sets the fw_cfg name of the blob to be inserted",
491 .type
= QEMU_OPT_STRING
,
492 .help
= "Sets the name of the file from which "
493 "the fw_cfg blob will be loaded",
496 .type
= QEMU_OPT_STRING
,
497 .help
= "Sets content of the blob to be inserted from a string",
500 .type
= QEMU_OPT_STRING
,
501 .help
= "Sets id of the object generating the fw_cfg blob "
504 { /* end of list */ }
509 * Get machine options
511 * Returns: machine options (never null).
513 QemuOpts
*qemu_get_machine_opts(void)
515 return qemu_find_opts_singleton("machine");
518 const char *qemu_get_vm_name(void)
523 static void res_free(void)
525 g_free(boot_splash_filedata
);
526 boot_splash_filedata
= NULL
;
529 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
531 const char *driver
= qemu_opt_get(opts
, "driver");
536 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
537 if (strcmp(default_list
[i
].driver
, driver
) != 0)
539 *(default_list
[i
].flag
) = 0;
544 /***********************************************************/
547 static RunState current_run_state
= RUN_STATE_PRECONFIG
;
549 /* We use RUN_STATE__MAX but any invalid value will do */
550 static RunState vmstop_requested
= RUN_STATE__MAX
;
551 static QemuMutex vmstop_lock
;
556 } RunStateTransition
;
558 static const RunStateTransition runstate_transitions_def
[] = {
560 { RUN_STATE_PRECONFIG
, RUN_STATE_PRELAUNCH
},
561 /* Early switch to inmigrate state to allow -incoming CLI option work
562 * as it used to. TODO: delay actual switching to inmigrate state to
563 * the point after machine is built and remove this hack.
565 { RUN_STATE_PRECONFIG
, RUN_STATE_INMIGRATE
},
567 { RUN_STATE_DEBUG
, RUN_STATE_RUNNING
},
568 { RUN_STATE_DEBUG
, RUN_STATE_FINISH_MIGRATE
},
569 { RUN_STATE_DEBUG
, RUN_STATE_PRELAUNCH
},
571 { RUN_STATE_INMIGRATE
, RUN_STATE_INTERNAL_ERROR
},
572 { RUN_STATE_INMIGRATE
, RUN_STATE_IO_ERROR
},
573 { RUN_STATE_INMIGRATE
, RUN_STATE_PAUSED
},
574 { RUN_STATE_INMIGRATE
, RUN_STATE_RUNNING
},
575 { RUN_STATE_INMIGRATE
, RUN_STATE_SHUTDOWN
},
576 { RUN_STATE_INMIGRATE
, RUN_STATE_SUSPENDED
},
577 { RUN_STATE_INMIGRATE
, RUN_STATE_WATCHDOG
},
578 { RUN_STATE_INMIGRATE
, RUN_STATE_GUEST_PANICKED
},
579 { RUN_STATE_INMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
580 { RUN_STATE_INMIGRATE
, RUN_STATE_PRELAUNCH
},
581 { RUN_STATE_INMIGRATE
, RUN_STATE_POSTMIGRATE
},
582 { RUN_STATE_INMIGRATE
, RUN_STATE_COLO
},
584 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PAUSED
},
585 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_FINISH_MIGRATE
},
586 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PRELAUNCH
},
588 { RUN_STATE_IO_ERROR
, RUN_STATE_RUNNING
},
589 { RUN_STATE_IO_ERROR
, RUN_STATE_FINISH_MIGRATE
},
590 { RUN_STATE_IO_ERROR
, RUN_STATE_PRELAUNCH
},
592 { RUN_STATE_PAUSED
, RUN_STATE_RUNNING
},
593 { RUN_STATE_PAUSED
, RUN_STATE_FINISH_MIGRATE
},
594 { RUN_STATE_PAUSED
, RUN_STATE_POSTMIGRATE
},
595 { RUN_STATE_PAUSED
, RUN_STATE_PRELAUNCH
},
596 { RUN_STATE_PAUSED
, RUN_STATE_COLO
},
598 { RUN_STATE_POSTMIGRATE
, RUN_STATE_RUNNING
},
599 { RUN_STATE_POSTMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
600 { RUN_STATE_POSTMIGRATE
, RUN_STATE_PRELAUNCH
},
602 { RUN_STATE_PRELAUNCH
, RUN_STATE_RUNNING
},
603 { RUN_STATE_PRELAUNCH
, RUN_STATE_FINISH_MIGRATE
},
604 { RUN_STATE_PRELAUNCH
, RUN_STATE_INMIGRATE
},
606 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_RUNNING
},
607 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PAUSED
},
608 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_POSTMIGRATE
},
609 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PRELAUNCH
},
610 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_COLO
},
612 { RUN_STATE_RESTORE_VM
, RUN_STATE_RUNNING
},
613 { RUN_STATE_RESTORE_VM
, RUN_STATE_PRELAUNCH
},
615 { RUN_STATE_COLO
, RUN_STATE_RUNNING
},
617 { RUN_STATE_RUNNING
, RUN_STATE_DEBUG
},
618 { RUN_STATE_RUNNING
, RUN_STATE_INTERNAL_ERROR
},
619 { RUN_STATE_RUNNING
, RUN_STATE_IO_ERROR
},
620 { RUN_STATE_RUNNING
, RUN_STATE_PAUSED
},
621 { RUN_STATE_RUNNING
, RUN_STATE_FINISH_MIGRATE
},
622 { RUN_STATE_RUNNING
, RUN_STATE_RESTORE_VM
},
623 { RUN_STATE_RUNNING
, RUN_STATE_SAVE_VM
},
624 { RUN_STATE_RUNNING
, RUN_STATE_SHUTDOWN
},
625 { RUN_STATE_RUNNING
, RUN_STATE_WATCHDOG
},
626 { RUN_STATE_RUNNING
, RUN_STATE_GUEST_PANICKED
},
627 { RUN_STATE_RUNNING
, RUN_STATE_COLO
},
629 { RUN_STATE_SAVE_VM
, RUN_STATE_RUNNING
},
631 { RUN_STATE_SHUTDOWN
, RUN_STATE_PAUSED
},
632 { RUN_STATE_SHUTDOWN
, RUN_STATE_FINISH_MIGRATE
},
633 { RUN_STATE_SHUTDOWN
, RUN_STATE_PRELAUNCH
},
635 { RUN_STATE_DEBUG
, RUN_STATE_SUSPENDED
},
636 { RUN_STATE_RUNNING
, RUN_STATE_SUSPENDED
},
637 { RUN_STATE_SUSPENDED
, RUN_STATE_RUNNING
},
638 { RUN_STATE_SUSPENDED
, RUN_STATE_FINISH_MIGRATE
},
639 { RUN_STATE_SUSPENDED
, RUN_STATE_PRELAUNCH
},
640 { RUN_STATE_SUSPENDED
, RUN_STATE_COLO
},
642 { RUN_STATE_WATCHDOG
, RUN_STATE_RUNNING
},
643 { RUN_STATE_WATCHDOG
, RUN_STATE_FINISH_MIGRATE
},
644 { RUN_STATE_WATCHDOG
, RUN_STATE_PRELAUNCH
},
645 { RUN_STATE_WATCHDOG
, RUN_STATE_COLO
},
647 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_RUNNING
},
648 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_FINISH_MIGRATE
},
649 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_PRELAUNCH
},
651 { RUN_STATE__MAX
, RUN_STATE__MAX
},
654 static bool runstate_valid_transitions
[RUN_STATE__MAX
][RUN_STATE__MAX
];
656 bool runstate_check(RunState state
)
658 return current_run_state
== state
;
661 bool runstate_store(char *str
, size_t size
)
663 const char *state
= RunState_str(current_run_state
);
664 size_t len
= strlen(state
) + 1;
669 memcpy(str
, state
, len
);
673 static void runstate_init(void)
675 const RunStateTransition
*p
;
677 memset(&runstate_valid_transitions
, 0, sizeof(runstate_valid_transitions
));
678 for (p
= &runstate_transitions_def
[0]; p
->from
!= RUN_STATE__MAX
; p
++) {
679 runstate_valid_transitions
[p
->from
][p
->to
] = true;
682 qemu_mutex_init(&vmstop_lock
);
685 /* This function will abort() on invalid state transitions */
686 void runstate_set(RunState new_state
)
688 assert(new_state
< RUN_STATE__MAX
);
690 trace_runstate_set(current_run_state
, RunState_str(current_run_state
),
691 new_state
, RunState_str(new_state
));
693 if (current_run_state
== new_state
) {
697 if (!runstate_valid_transitions
[current_run_state
][new_state
]) {
698 error_report("invalid runstate transition: '%s' -> '%s'",
699 RunState_str(current_run_state
),
700 RunState_str(new_state
));
704 current_run_state
= new_state
;
707 int runstate_is_running(void)
709 return runstate_check(RUN_STATE_RUNNING
);
712 bool runstate_needs_reset(void)
714 return runstate_check(RUN_STATE_INTERNAL_ERROR
) ||
715 runstate_check(RUN_STATE_SHUTDOWN
);
718 StatusInfo
*qmp_query_status(Error
**errp
)
720 StatusInfo
*info
= g_malloc0(sizeof(*info
));
722 info
->running
= runstate_is_running();
723 info
->singlestep
= singlestep
;
724 info
->status
= current_run_state
;
729 bool qemu_vmstop_requested(RunState
*r
)
731 qemu_mutex_lock(&vmstop_lock
);
732 *r
= vmstop_requested
;
733 vmstop_requested
= RUN_STATE__MAX
;
734 qemu_mutex_unlock(&vmstop_lock
);
735 return *r
< RUN_STATE__MAX
;
738 void qemu_system_vmstop_request_prepare(void)
740 qemu_mutex_lock(&vmstop_lock
);
743 void qemu_system_vmstop_request(RunState state
)
745 vmstop_requested
= state
;
746 qemu_mutex_unlock(&vmstop_lock
);
750 /***********************************************************/
751 /* RTC reference time/date access */
752 static time_t qemu_ref_timedate(QEMUClockType clock
)
754 time_t value
= qemu_clock_get_ms(clock
) / 1000;
756 case QEMU_CLOCK_REALTIME
:
757 value
-= rtc_realtime_clock_offset
;
759 case QEMU_CLOCK_VIRTUAL
:
760 value
+= rtc_ref_start_datetime
;
762 case QEMU_CLOCK_HOST
:
763 if (rtc_base_type
== RTC_BASE_DATETIME
) {
764 value
-= rtc_host_datetime_offset
;
773 void qemu_get_timedate(struct tm
*tm
, int offset
)
775 time_t ti
= qemu_ref_timedate(rtc_clock
);
779 switch (rtc_base_type
) {
780 case RTC_BASE_DATETIME
:
784 case RTC_BASE_LOCALTIME
:
785 localtime_r(&ti
, tm
);
790 int qemu_timedate_diff(struct tm
*tm
)
794 switch (rtc_base_type
) {
795 case RTC_BASE_DATETIME
:
797 seconds
= mktimegm(tm
);
799 case RTC_BASE_LOCALTIME
:
802 tmp
.tm_isdst
= -1; /* use timezone to figure it out */
803 seconds
= mktime(&tmp
);
810 return seconds
- qemu_ref_timedate(QEMU_CLOCK_HOST
);
813 static void configure_rtc_base_datetime(const char *startdate
)
815 time_t rtc_start_datetime
;
818 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d", &tm
.tm_year
, &tm
.tm_mon
,
819 &tm
.tm_mday
, &tm
.tm_hour
, &tm
.tm_min
, &tm
.tm_sec
) == 6) {
821 } else if (sscanf(startdate
, "%d-%d-%d",
822 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
) == 3) {
831 rtc_start_datetime
= mktimegm(&tm
);
832 if (rtc_start_datetime
== -1) {
834 error_report("invalid datetime format");
835 error_printf("valid formats: "
836 "'2006-06-17T16:01:21' or '2006-06-17'\n");
839 rtc_host_datetime_offset
= rtc_ref_start_datetime
- rtc_start_datetime
;
840 rtc_ref_start_datetime
= rtc_start_datetime
;
843 static void configure_rtc(QemuOpts
*opts
)
848 rtc_clock
= QEMU_CLOCK_HOST
;
849 rtc_ref_start_datetime
= qemu_clock_get_ms(QEMU_CLOCK_HOST
) / 1000;
850 rtc_realtime_clock_offset
= qemu_clock_get_ms(QEMU_CLOCK_REALTIME
) / 1000;
852 value
= qemu_opt_get(opts
, "base");
854 if (!strcmp(value
, "utc")) {
855 rtc_base_type
= RTC_BASE_UTC
;
856 } else if (!strcmp(value
, "localtime")) {
857 Error
*blocker
= NULL
;
858 rtc_base_type
= RTC_BASE_LOCALTIME
;
859 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
860 "-rtc base=localtime");
861 replay_add_blocker(blocker
);
863 rtc_base_type
= RTC_BASE_DATETIME
;
864 configure_rtc_base_datetime(value
);
867 value
= qemu_opt_get(opts
, "clock");
869 if (!strcmp(value
, "host")) {
870 rtc_clock
= QEMU_CLOCK_HOST
;
871 } else if (!strcmp(value
, "rt")) {
872 rtc_clock
= QEMU_CLOCK_REALTIME
;
873 } else if (!strcmp(value
, "vm")) {
874 rtc_clock
= QEMU_CLOCK_VIRTUAL
;
876 error_report("invalid option value '%s'", value
);
880 value
= qemu_opt_get(opts
, "driftfix");
882 if (!strcmp(value
, "slew")) {
883 object_register_sugar_prop("mc146818rtc",
886 } else if (!strcmp(value
, "none")) {
887 /* discard is default */
889 error_report("invalid option value '%s'", value
);
895 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
897 const char *proc_name
;
899 if (qemu_opt_get(opts
, "debug-threads")) {
900 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
902 qemu_name
= qemu_opt_get(opts
, "guest");
904 proc_name
= qemu_opt_get(opts
, "process");
906 os_set_proc_name(proc_name
);
912 bool defaults_enabled(void)
918 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
920 int fd
, dupfd
, flags
;
922 const char *fd_opaque
= NULL
;
925 fd
= qemu_opt_get_number(opts
, "fd", -1);
926 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
927 fd_opaque
= qemu_opt_get(opts
, "opaque");
930 error_setg(errp
, "fd option is required and must be non-negative");
934 if (fd
<= STDERR_FILENO
) {
935 error_setg(errp
, "fd cannot be a standard I/O stream");
940 * All fds inherited across exec() necessarily have FD_CLOEXEC
941 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
943 flags
= fcntl(fd
, F_GETFD
);
944 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
945 error_setg(errp
, "fd is not valid or already in use");
950 error_setg(errp
, "set option is required and must be non-negative");
954 #ifdef F_DUPFD_CLOEXEC
955 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
959 qemu_set_cloexec(dupfd
);
963 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
967 /* add the duplicate fd, and optionally the opaque string, to the fd set */
968 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, !!fd_opaque
, fd_opaque
,
975 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
979 fd
= qemu_opt_get_number(opts
, "fd", -1);
986 /***********************************************************/
987 /* QEMU Block devices */
989 #define HD_OPTS "media=disk"
990 #define CDROM_OPTS "media=cdrom"
992 #define PFLASH_OPTS ""
996 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
998 BlockInterfaceType
*block_default_type
= opaque
;
1000 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
1003 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1005 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
1006 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
1011 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
1012 int index
, const char *optstr
)
1017 if (!enable
|| drive_get_by_index(type
, index
)) {
1021 opts
= drive_add(type
, index
, NULL
, optstr
);
1023 drive_enable_snapshot(NULL
, opts
, NULL
);
1026 dinfo
= drive_new(opts
, type
, &error_abort
);
1027 dinfo
->is_default
= true;
1031 typedef struct BlockdevOptionsQueueEntry
{
1032 BlockdevOptions
*bdo
;
1034 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
1035 } BlockdevOptionsQueueEntry
;
1037 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
1039 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
1040 MachineClass
*machine_class
, int snapshot
)
1043 * If the currently selected machine wishes to override the
1044 * units-per-bus property of its default HBA interface type, do so
1047 if (machine_class
->units_per_default_bus
) {
1048 override_max_devs(machine_class
->block_default_type
,
1049 machine_class
->units_per_default_bus
);
1052 /* open the virtual block devices */
1053 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
1054 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
1056 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
1057 loc_push_restore(&bdo
->loc
);
1058 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
1060 qapi_free_BlockdevOptions(bdo
->bdo
);
1064 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
1067 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
1068 &machine_class
->block_default_type
, &error_fatal
)) {
1069 /* We printed help */
1073 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
1075 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
1076 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
1080 static QemuOptsList qemu_smp_opts
= {
1082 .implied_opt_name
= "cpus",
1083 .merge_lists
= true,
1084 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
1088 .type
= QEMU_OPT_NUMBER
,
1091 .type
= QEMU_OPT_NUMBER
,
1094 .type
= QEMU_OPT_NUMBER
,
1097 .type
= QEMU_OPT_NUMBER
,
1100 .type
= QEMU_OPT_NUMBER
,
1103 .type
= QEMU_OPT_NUMBER
,
1105 { /*End of list */ }
1109 static void realtime_init(void)
1112 if (os_mlock() < 0) {
1113 error_report("locking memory failed");
1120 static void configure_msg(QemuOpts
*opts
)
1122 error_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
1123 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
1127 /***********************************************************/
1130 static int usb_device_add(const char *devname
)
1132 USBDevice
*dev
= NULL
;
1134 if (!machine_usb(current_machine
)) {
1138 dev
= usbdevice_create(devname
);
1145 static int usb_parse(const char *cmdline
)
1148 r
= usb_device_add(cmdline
);
1150 error_report("could not add USB device '%s'", cmdline
);
1155 /***********************************************************/
1156 /* machine registration */
1158 MachineState
*current_machine
;
1160 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
1164 for (el
= machines
; el
; el
= el
->next
) {
1165 MachineClass
*mc
= el
->data
;
1167 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
1175 static MachineClass
*find_default_machine(GSList
*machines
)
1178 MachineClass
*default_machineclass
= NULL
;
1180 for (el
= machines
; el
; el
= el
->next
) {
1181 MachineClass
*mc
= el
->data
;
1183 if (mc
->is_default
) {
1184 assert(default_machineclass
== NULL
&& "Multiple default machines");
1185 default_machineclass
= mc
;
1189 return default_machineclass
;
1192 static int machine_help_func(QemuOpts
*opts
, MachineState
*machine
)
1194 ObjectProperty
*prop
;
1195 ObjectPropertyIterator iter
;
1197 if (!qemu_opt_has_help_opt(opts
)) {
1201 object_property_iter_init(&iter
, OBJECT(machine
));
1202 while ((prop
= object_property_iter_next(&iter
))) {
1207 printf("%s.%s=%s", MACHINE_GET_CLASS(machine
)->name
,
1208 prop
->name
, prop
->type
);
1209 if (prop
->description
) {
1210 printf(" (%s)\n", prop
->description
);
1219 struct VMChangeStateEntry
{
1220 VMChangeStateHandler
*cb
;
1222 QTAILQ_ENTRY(VMChangeStateEntry
) entries
;
1226 static QTAILQ_HEAD(, VMChangeStateEntry
) vm_change_state_head
;
1229 * qemu_add_vm_change_state_handler_prio:
1230 * @cb: the callback to invoke
1231 * @opaque: user data passed to the callback
1232 * @priority: low priorities execute first when the vm runs and the reverse is
1233 * true when the vm stops
1235 * Register a callback function that is invoked when the vm starts or stops
1238 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1240 VMChangeStateEntry
*qemu_add_vm_change_state_handler_prio(
1241 VMChangeStateHandler
*cb
, void *opaque
, int priority
)
1243 VMChangeStateEntry
*e
;
1244 VMChangeStateEntry
*other
;
1246 e
= g_malloc0(sizeof(*e
));
1249 e
->priority
= priority
;
1251 /* Keep list sorted in ascending priority order */
1252 QTAILQ_FOREACH(other
, &vm_change_state_head
, entries
) {
1253 if (priority
< other
->priority
) {
1254 QTAILQ_INSERT_BEFORE(other
, e
, entries
);
1259 QTAILQ_INSERT_TAIL(&vm_change_state_head
, e
, entries
);
1263 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
1266 return qemu_add_vm_change_state_handler_prio(cb
, opaque
, 0);
1269 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
1271 QTAILQ_REMOVE(&vm_change_state_head
, e
, entries
);
1275 void vm_state_notify(int running
, RunState state
)
1277 VMChangeStateEntry
*e
, *next
;
1279 trace_vm_state_notify(running
, state
, RunState_str(state
));
1282 QTAILQ_FOREACH_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1283 e
->cb(e
->opaque
, running
, state
);
1286 QTAILQ_FOREACH_REVERSE_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1287 e
->cb(e
->opaque
, running
, state
);
1292 static ShutdownCause reset_requested
;
1293 static ShutdownCause shutdown_requested
;
1294 static int shutdown_signal
;
1295 static pid_t shutdown_pid
;
1296 static int powerdown_requested
;
1297 static int debug_requested
;
1298 static int suspend_requested
;
1299 static bool preconfig_exit_requested
= true;
1300 static WakeupReason wakeup_reason
;
1301 static NotifierList powerdown_notifiers
=
1302 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers
);
1303 static NotifierList suspend_notifiers
=
1304 NOTIFIER_LIST_INITIALIZER(suspend_notifiers
);
1305 static NotifierList wakeup_notifiers
=
1306 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers
);
1307 static NotifierList shutdown_notifiers
=
1308 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers
);
1309 static uint32_t wakeup_reason_mask
= ~(1 << QEMU_WAKEUP_REASON_NONE
);
1311 ShutdownCause
qemu_shutdown_requested_get(void)
1313 return shutdown_requested
;
1316 ShutdownCause
qemu_reset_requested_get(void)
1318 return reset_requested
;
1321 static int qemu_shutdown_requested(void)
1323 return atomic_xchg(&shutdown_requested
, SHUTDOWN_CAUSE_NONE
);
1326 static void qemu_kill_report(void)
1328 if (!qtest_driver() && shutdown_signal
) {
1329 if (shutdown_pid
== 0) {
1330 /* This happens for eg ^C at the terminal, so it's worth
1331 * avoiding printing an odd message in that case.
1333 error_report("terminating on signal %d", shutdown_signal
);
1335 char *shutdown_cmd
= qemu_get_pid_name(shutdown_pid
);
1337 error_report("terminating on signal %d from pid " FMT_pid
" (%s)",
1338 shutdown_signal
, shutdown_pid
,
1339 shutdown_cmd
? shutdown_cmd
: "<unknown process>");
1340 g_free(shutdown_cmd
);
1342 shutdown_signal
= 0;
1346 static ShutdownCause
qemu_reset_requested(void)
1348 ShutdownCause r
= reset_requested
;
1350 if (r
&& replay_checkpoint(CHECKPOINT_RESET_REQUESTED
)) {
1351 reset_requested
= SHUTDOWN_CAUSE_NONE
;
1354 return SHUTDOWN_CAUSE_NONE
;
1357 static int qemu_suspend_requested(void)
1359 int r
= suspend_requested
;
1360 if (r
&& replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED
)) {
1361 suspend_requested
= 0;
1367 static WakeupReason
qemu_wakeup_requested(void)
1369 return wakeup_reason
;
1372 static int qemu_powerdown_requested(void)
1374 int r
= powerdown_requested
;
1375 powerdown_requested
= 0;
1379 static int qemu_debug_requested(void)
1381 int r
= debug_requested
;
1382 debug_requested
= 0;
1386 void qemu_exit_preconfig_request(void)
1388 preconfig_exit_requested
= true;
1392 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1394 void qemu_system_reset(ShutdownCause reason
)
1398 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1400 cpu_synchronize_all_states();
1402 if (mc
&& mc
->reset
) {
1403 mc
->reset(current_machine
);
1405 qemu_devices_reset();
1407 if (reason
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1408 qapi_event_send_reset(shutdown_caused_by_guest(reason
), reason
);
1410 cpu_synchronize_all_post_reset();
1414 * Wake the VM after suspend.
1416 static void qemu_system_wakeup(void)
1420 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1422 if (mc
&& mc
->wakeup
) {
1423 mc
->wakeup(current_machine
);
1427 void qemu_system_guest_panicked(GuestPanicInformation
*info
)
1429 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crashed");
1432 current_cpu
->crash_occurred
= true;
1434 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE
,
1436 vm_stop(RUN_STATE_GUEST_PANICKED
);
1438 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF
,
1440 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC
);
1444 if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_HYPER_V
) {
1445 qemu_log_mask(LOG_GUEST_ERROR
, "\nHV crash parameters: (%#"PRIx64
1446 " %#"PRIx64
" %#"PRIx64
" %#"PRIx64
" %#"PRIx64
")\n",
1447 info
->u
.hyper_v
.arg1
,
1448 info
->u
.hyper_v
.arg2
,
1449 info
->u
.hyper_v
.arg3
,
1450 info
->u
.hyper_v
.arg4
,
1451 info
->u
.hyper_v
.arg5
);
1452 } else if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_S390
) {
1453 qemu_log_mask(LOG_GUEST_ERROR
, " on cpu %d: %s\n"
1454 "PSW: 0x%016" PRIx64
" 0x%016" PRIx64
"\n",
1456 S390CrashReason_str(info
->u
.s390
.reason
),
1457 info
->u
.s390
.psw_mask
,
1458 info
->u
.s390
.psw_addr
);
1460 qapi_free_GuestPanicInformation(info
);
1464 void qemu_system_guest_crashloaded(GuestPanicInformation
*info
)
1466 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crash loaded");
1468 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN
,
1472 qapi_free_GuestPanicInformation(info
);
1476 void qemu_system_reset_request(ShutdownCause reason
)
1478 if (no_reboot
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1479 shutdown_requested
= reason
;
1481 reset_requested
= reason
;
1484 qemu_notify_event();
1487 static void qemu_system_suspend(void)
1490 notifier_list_notify(&suspend_notifiers
, NULL
);
1491 runstate_set(RUN_STATE_SUSPENDED
);
1492 qapi_event_send_suspend();
1495 void qemu_system_suspend_request(void)
1497 if (runstate_check(RUN_STATE_SUSPENDED
)) {
1500 suspend_requested
= 1;
1502 qemu_notify_event();
1505 void qemu_register_suspend_notifier(Notifier
*notifier
)
1507 notifier_list_add(&suspend_notifiers
, notifier
);
1510 void qemu_system_wakeup_request(WakeupReason reason
, Error
**errp
)
1512 trace_system_wakeup_request(reason
);
1514 if (!runstate_check(RUN_STATE_SUSPENDED
)) {
1516 "Unable to wake up: guest is not in suspended state");
1519 if (!(wakeup_reason_mask
& (1 << reason
))) {
1522 runstate_set(RUN_STATE_RUNNING
);
1523 wakeup_reason
= reason
;
1524 qemu_notify_event();
1527 void qemu_system_wakeup_enable(WakeupReason reason
, bool enabled
)
1530 wakeup_reason_mask
|= (1 << reason
);
1532 wakeup_reason_mask
&= ~(1 << reason
);
1536 void qemu_register_wakeup_notifier(Notifier
*notifier
)
1538 notifier_list_add(&wakeup_notifiers
, notifier
);
1541 void qemu_register_wakeup_support(void)
1543 wakeup_suspend_enabled
= true;
1546 bool qemu_wakeup_suspend_enabled(void)
1548 return wakeup_suspend_enabled
;
1551 void qemu_system_killed(int signal
, pid_t pid
)
1553 shutdown_signal
= signal
;
1557 /* Cannot call qemu_system_shutdown_request directly because
1558 * we are in a signal handler.
1560 shutdown_requested
= SHUTDOWN_CAUSE_HOST_SIGNAL
;
1561 qemu_notify_event();
1564 void qemu_system_shutdown_request(ShutdownCause reason
)
1566 trace_qemu_system_shutdown_request(reason
);
1567 replay_shutdown_request(reason
);
1568 shutdown_requested
= reason
;
1569 qemu_notify_event();
1572 static void qemu_system_powerdown(void)
1574 qapi_event_send_powerdown();
1575 notifier_list_notify(&powerdown_notifiers
, NULL
);
1578 static void qemu_system_shutdown(ShutdownCause cause
)
1580 qapi_event_send_shutdown(shutdown_caused_by_guest(cause
), cause
);
1581 notifier_list_notify(&shutdown_notifiers
, &cause
);
1584 void qemu_system_powerdown_request(void)
1586 trace_qemu_system_powerdown_request();
1587 powerdown_requested
= 1;
1588 qemu_notify_event();
1591 void qemu_register_powerdown_notifier(Notifier
*notifier
)
1593 notifier_list_add(&powerdown_notifiers
, notifier
);
1596 void qemu_register_shutdown_notifier(Notifier
*notifier
)
1598 notifier_list_add(&shutdown_notifiers
, notifier
);
1601 void qemu_system_debug_request(void)
1603 debug_requested
= 1;
1604 qemu_notify_event();
1607 static bool main_loop_should_exit(void)
1610 ShutdownCause request
;
1612 if (preconfig_exit_requested
) {
1613 if (runstate_check(RUN_STATE_PRECONFIG
)) {
1614 runstate_set(RUN_STATE_PRELAUNCH
);
1616 preconfig_exit_requested
= false;
1619 if (qemu_debug_requested()) {
1620 vm_stop(RUN_STATE_DEBUG
);
1622 if (qemu_suspend_requested()) {
1623 qemu_system_suspend();
1625 request
= qemu_shutdown_requested();
1628 qemu_system_shutdown(request
);
1630 vm_stop(RUN_STATE_SHUTDOWN
);
1635 request
= qemu_reset_requested();
1638 qemu_system_reset(request
);
1641 * runstate can change in pause_all_vcpus()
1642 * as iothread mutex is unlocked
1644 if (!runstate_check(RUN_STATE_RUNNING
) &&
1645 !runstate_check(RUN_STATE_INMIGRATE
) &&
1646 !runstate_check(RUN_STATE_FINISH_MIGRATE
)) {
1647 runstate_set(RUN_STATE_PRELAUNCH
);
1650 if (qemu_wakeup_requested()) {
1652 qemu_system_wakeup();
1653 notifier_list_notify(&wakeup_notifiers
, &wakeup_reason
);
1654 wakeup_reason
= QEMU_WAKEUP_REASON_NONE
;
1656 qapi_event_send_wakeup();
1658 if (qemu_powerdown_requested()) {
1659 qemu_system_powerdown();
1661 if (qemu_vmstop_requested(&r
)) {
1667 void qemu_main_loop(void)
1669 #ifdef CONFIG_PROFILER
1672 while (!main_loop_should_exit()) {
1673 #ifdef CONFIG_PROFILER
1674 ti
= profile_getclock();
1676 main_loop_wait(false);
1677 #ifdef CONFIG_PROFILER
1678 dev_time
+= profile_getclock() - ti
;
1683 static void version(void)
1685 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
1686 QEMU_COPYRIGHT
"\n");
1689 static void help(int exitcode
)
1692 printf("usage: %s [options] [disk_image]\n\n"
1693 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1694 error_get_progname());
1696 #define QEMU_OPTIONS_GENERATE_HELP
1697 #include "qemu-options-wrapper.h"
1699 printf("\nDuring emulation, the following keys are useful:\n"
1700 "ctrl-alt-f toggle full screen\n"
1701 "ctrl-alt-n switch to virtual console 'n'\n"
1702 "ctrl-alt toggle mouse and keyboard grab\n"
1704 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1706 QEMU_HELP_BOTTOM
"\n");
1711 #define HAS_ARG 0x0001
1713 typedef struct QEMUOption
{
1720 static const QEMUOption qemu_options
[] = {
1721 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
1722 #define QEMU_OPTIONS_GENERATE_OPTIONS
1723 #include "qemu-options-wrapper.h"
1727 typedef struct VGAInterfaceInfo
{
1728 const char *opt_name
; /* option name */
1729 const char *name
; /* human-readable name */
1730 /* Class names indicating that support is available.
1731 * If no class is specified, the interface is always available */
1732 const char *class_names
[2];
1735 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
1738 .name
= "no graphic card",
1742 .name
= "standard VGA",
1743 .class_names
= { "VGA", "isa-vga" },
1746 .opt_name
= "cirrus",
1747 .name
= "Cirrus VGA",
1748 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
1751 .opt_name
= "vmware",
1752 .name
= "VMWare SVGA",
1753 .class_names
= { "vmware-svga" },
1756 .opt_name
= "virtio",
1757 .name
= "Virtio VGA",
1758 .class_names
= { "virtio-vga" },
1763 .class_names
= { "qxl-vga" },
1767 .name
= "TCX framebuffer",
1768 .class_names
= { "SUNW,tcx" },
1772 .name
= "CG3 framebuffer",
1773 .class_names
= { "cgthree" },
1776 .opt_name
= "xenfb",
1777 .name
= "Xen paravirtualized framebuffer",
1781 static bool vga_interface_available(VGAInterfaceType t
)
1783 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1785 assert(t
< VGA_TYPE_MAX
);
1786 return !ti
->class_names
[0] ||
1787 module_object_class_by_name(ti
->class_names
[0]) ||
1788 module_object_class_by_name(ti
->class_names
[1]);
1792 get_default_vga_model(const MachineClass
*machine_class
)
1794 if (machine_class
->default_display
) {
1795 return machine_class
->default_display
;
1796 } else if (vga_interface_available(VGA_CIRRUS
)) {
1798 } else if (vga_interface_available(VGA_STD
)) {
1805 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1810 if (g_str_equal(p
, "help")) {
1811 const char *def
= get_default_vga_model(machine_class
);
1813 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1814 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1816 if (vga_interface_available(t
) && ti
->opt_name
) {
1817 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1818 g_str_equal(ti
->opt_name
, def
) ? " (default)" : "");
1824 assert(vga_interface_type
== VGA_NONE
);
1825 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1826 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1827 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1828 if (!vga_interface_available(t
)) {
1829 error_report("%s not available", ti
->name
);
1832 vga_interface_type
= t
;
1836 if (t
== VGA_TYPE_MAX
) {
1838 error_report("unknown vga type: %s", p
);
1842 const char *nextopt
;
1844 if (strstart(opts
, ",retrace=", &nextopt
)) {
1846 if (strstart(opts
, "dumb", &nextopt
))
1847 vga_retrace_method
= VGA_RETRACE_DUMB
;
1848 else if (strstart(opts
, "precise", &nextopt
))
1849 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1850 else goto invalid_vga
;
1851 } else goto invalid_vga
;
1856 static void parse_display_qapi(const char *optarg
)
1858 DisplayOptions
*opts
;
1861 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1863 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1864 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1866 qapi_free_DisplayOptions(opts
);
1870 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1872 return QAPI_CLONE(DisplayOptions
, &dpy
);
1875 static void parse_display(const char *p
)
1879 if (is_help_option(p
)) {
1880 qemu_display_help();
1884 if (strstart(p
, "sdl", &opts
)) {
1886 * sdl DisplayType needs hand-crafted parser instead of
1887 * parse_display_qapi() due to some options not in
1888 * DisplayOptions, specifically:
1890 * Already deprecated.
1891 * - ctrl_grab + alt_grab
1892 * Not clear yet what happens to them long-term. Should
1893 * replaced by something better or deprecated and dropped.
1895 dpy
.type
= DISPLAY_TYPE_SDL
;
1897 const char *nextopt
;
1899 if (strstart(opts
, ",alt_grab=", &nextopt
)) {
1901 if (strstart(opts
, "on", &nextopt
)) {
1903 } else if (strstart(opts
, "off", &nextopt
)) {
1906 goto invalid_sdl_args
;
1908 } else if (strstart(opts
, ",ctrl_grab=", &nextopt
)) {
1910 if (strstart(opts
, "on", &nextopt
)) {
1912 } else if (strstart(opts
, "off", &nextopt
)) {
1915 goto invalid_sdl_args
;
1917 } else if (strstart(opts
, ",window_close=", &nextopt
)) {
1919 dpy
.has_window_close
= true;
1920 if (strstart(opts
, "on", &nextopt
)) {
1921 dpy
.window_close
= true;
1922 } else if (strstart(opts
, "off", &nextopt
)) {
1923 dpy
.window_close
= false;
1925 goto invalid_sdl_args
;
1927 } else if (strstart(opts
, ",show-cursor=", &nextopt
)) {
1929 dpy
.has_show_cursor
= true;
1930 if (strstart(opts
, "on", &nextopt
)) {
1931 dpy
.show_cursor
= true;
1932 } else if (strstart(opts
, "off", &nextopt
)) {
1933 dpy
.show_cursor
= false;
1935 goto invalid_sdl_args
;
1937 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1940 if (strstart(opts
, "on", &nextopt
)) {
1941 dpy
.gl
= DISPLAYGL_MODE_ON
;
1942 } else if (strstart(opts
, "core", &nextopt
)) {
1943 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1944 } else if (strstart(opts
, "es", &nextopt
)) {
1945 dpy
.gl
= DISPLAYGL_MODE_ES
;
1946 } else if (strstart(opts
, "off", &nextopt
)) {
1947 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1949 goto invalid_sdl_args
;
1953 error_report("invalid SDL option string");
1958 } else if (strstart(p
, "vnc", &opts
)) {
1960 * vnc isn't a (local) DisplayType but a protocol for remote
1964 vnc_parse(opts
+ 1, &error_fatal
);
1966 error_report("VNC requires a display argument vnc=<display>");
1970 parse_display_qapi(p
);
1974 char *qemu_find_file(int type
, const char *name
)
1980 /* Try the name as a straight path first */
1981 if (access(name
, R_OK
) == 0) {
1982 trace_load_file(name
, name
);
1983 return g_strdup(name
);
1987 case QEMU_FILE_TYPE_BIOS
:
1990 case QEMU_FILE_TYPE_KEYMAP
:
1991 subdir
= "keymaps/";
1997 for (i
= 0; i
< data_dir_idx
; i
++) {
1998 buf
= g_strdup_printf("%s/%s%s", data_dir
[i
], subdir
, name
);
1999 if (access(buf
, R_OK
) == 0) {
2000 trace_load_file(name
, buf
);
2008 void qemu_add_data_dir(const char *path
)
2015 if (data_dir_idx
== ARRAY_SIZE(data_dir
)) {
2018 for (i
= 0; i
< data_dir_idx
; i
++) {
2019 if (strcmp(data_dir
[i
], path
) == 0) {
2020 return; /* duplicate */
2023 data_dir
[data_dir_idx
++] = g_strdup(path
);
2026 static inline bool nonempty_str(const char *str
)
2031 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2035 const char *name
, *file
, *str
, *gen_id
;
2036 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
2038 if (fw_cfg
== NULL
) {
2039 error_setg(errp
, "fw_cfg device not available");
2042 name
= qemu_opt_get(opts
, "name");
2043 file
= qemu_opt_get(opts
, "file");
2044 str
= qemu_opt_get(opts
, "string");
2045 gen_id
= qemu_opt_get(opts
, "gen_id");
2047 /* we need the name, and exactly one of: file, content string, gen_id */
2048 if (!nonempty_str(name
) ||
2049 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
2050 error_setg(errp
, "name, plus exactly one of file,"
2051 " string and gen_id, are needed");
2054 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
2055 error_setg(errp
, "name too long (max. %d char)",
2056 FW_CFG_MAX_FILE_PATH
- 1);
2059 if (nonempty_str(gen_id
)) {
2061 * In this particular case where the content is populated
2062 * internally, the "etc/" namespace protection is relaxed,
2063 * so do not emit a warning.
2065 } else if (strncmp(name
, "opt/", 4) != 0) {
2066 warn_report("externally provided fw_cfg item names "
2067 "should be prefixed with \"opt/\"");
2069 if (nonempty_str(str
)) {
2070 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
2071 buf
= g_memdup(str
, size
);
2072 } else if (nonempty_str(gen_id
)) {
2073 Error
*local_err
= NULL
;
2075 fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
);
2077 error_propagate(errp
, local_err
);
2083 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
2084 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
2089 /* For legacy, keep user files in a specific global order. */
2090 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
2091 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
2092 fw_cfg_reset_order_override(fw_cfg
);
2096 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2098 return qdev_device_help(opts
);
2101 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2105 dev
= qdev_device_add(opts
, errp
);
2106 if (!dev
&& *errp
) {
2107 error_report_err(*errp
);
2110 object_unref(OBJECT(dev
));
2115 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2117 Error
*local_err
= NULL
;
2119 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
2121 error_propagate(errp
, local_err
);
2129 #ifdef CONFIG_VIRTFS
2130 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2132 return qemu_fsdev_add(opts
, errp
);
2136 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2138 return monitor_init_opts(opts
, errp
);
2141 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
2143 static int monitor_device_index
= 0;
2148 if (strstart(optarg
, "chardev:", &p
)) {
2149 snprintf(label
, sizeof(label
), "%s", p
);
2151 snprintf(label
, sizeof(label
), "compat_monitor%d",
2152 monitor_device_index
);
2153 opts
= qemu_chr_parse_compat(label
, optarg
, true);
2155 error_report("parse error: %s", optarg
);
2160 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
2161 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
2162 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
2163 if (!strcmp(mode
, "control")) {
2164 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
2166 assert(pretty
== false);
2168 monitor_device_index
++;
2171 struct device_config
{
2173 DEV_USB
, /* -usbdevice */
2174 DEV_SERIAL
, /* -serial */
2175 DEV_PARALLEL
, /* -parallel */
2176 DEV_DEBUGCON
, /* -debugcon */
2177 DEV_GDB
, /* -gdb, -s */
2178 DEV_SCLP
, /* s390 sclp */
2180 const char *cmdline
;
2182 QTAILQ_ENTRY(device_config
) next
;
2185 static QTAILQ_HEAD(, device_config
) device_configs
=
2186 QTAILQ_HEAD_INITIALIZER(device_configs
);
2188 static void add_device_config(int type
, const char *cmdline
)
2190 struct device_config
*conf
;
2192 conf
= g_malloc0(sizeof(*conf
));
2194 conf
->cmdline
= cmdline
;
2195 loc_save(&conf
->loc
);
2196 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
2199 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
2201 struct device_config
*conf
;
2204 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
2205 if (conf
->type
!= type
)
2207 loc_push_restore(&conf
->loc
);
2208 rc
= func(conf
->cmdline
);
2209 loc_pop(&conf
->loc
);
2217 static int serial_parse(const char *devname
)
2219 int index
= num_serial_hds
;
2222 if (strcmp(devname
, "none") == 0)
2224 snprintf(label
, sizeof(label
), "serial%d", index
);
2225 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
2227 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2228 if (!serial_hds
[index
]) {
2229 error_report("could not connect serial device"
2230 " to character backend '%s'", devname
);
2237 Chardev
*serial_hd(int i
)
2240 if (i
< num_serial_hds
) {
2241 return serial_hds
[i
];
2246 int serial_max_hds(void)
2248 return num_serial_hds
;
2251 static int parallel_parse(const char *devname
)
2253 static int index
= 0;
2256 if (strcmp(devname
, "none") == 0)
2258 if (index
== MAX_PARALLEL_PORTS
) {
2259 error_report("too many parallel ports");
2262 snprintf(label
, sizeof(label
), "parallel%d", index
);
2263 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2264 if (!parallel_hds
[index
]) {
2265 error_report("could not connect parallel device"
2266 " to character backend '%s'", devname
);
2273 static int debugcon_parse(const char *devname
)
2277 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
2278 error_report("invalid character backend '%s'", devname
);
2281 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
2283 error_report("already have a debugcon device");
2286 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
2287 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
2291 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
2293 const MachineClass
*mc1
= a
, *mc2
= b
;
2296 if (mc1
->family
== NULL
) {
2297 if (mc2
->family
== NULL
) {
2298 /* Compare standalone machine types against each other; they sort
2299 * in increasing order.
2301 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
2302 object_class_get_name(OBJECT_CLASS(mc2
)));
2305 /* Standalone machine types sort after families. */
2309 if (mc2
->family
== NULL
) {
2310 /* Families sort before standalone machine types. */
2314 /* Families sort between each other alphabetically increasingly. */
2315 res
= strcmp(mc1
->family
, mc2
->family
);
2320 /* Within the same family, machine types sort in decreasing order. */
2321 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
2322 object_class_get_name(OBJECT_CLASS(mc1
)));
2325 static MachineClass
*machine_parse(const char *name
, GSList
*machines
)
2330 if (is_help_option(name
)) {
2331 printf("Supported machines are:\n");
2332 machines
= g_slist_sort(machines
, machine_class_cmp
);
2333 for (el
= machines
; el
; el
= el
->next
) {
2334 MachineClass
*mc
= el
->data
;
2336 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
2338 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
2339 mc
->is_default
? " (default)" : "",
2340 mc
->deprecation_reason
? " (deprecated)" : "");
2345 mc
= find_machine(name
, machines
);
2347 error_report("unsupported machine type");
2348 error_printf("Use -machine help to list supported machines\n");
2354 void qemu_add_exit_notifier(Notifier
*notify
)
2356 notifier_list_add(&exit_notifiers
, notify
);
2359 void qemu_remove_exit_notifier(Notifier
*notify
)
2361 notifier_remove(notify
);
2364 static void qemu_run_exit_notifiers(void)
2366 notifier_list_notify(&exit_notifiers
, NULL
);
2369 static const char *pid_file
;
2370 static Notifier qemu_unlink_pidfile_notifier
;
2372 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
2379 bool machine_init_done
;
2381 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
2383 notifier_list_add(&machine_init_done_notifiers
, notify
);
2384 if (machine_init_done
) {
2385 notify
->notify(notify
, NULL
);
2389 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
2391 notifier_remove(notify
);
2394 static void qemu_run_machine_init_done_notifiers(void)
2396 machine_init_done
= true;
2397 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
2400 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
2401 const char **poptarg
, int *poptind
)
2403 const QEMUOption
*popt
;
2404 int optind
= *poptind
;
2405 char *r
= argv
[optind
];
2408 loc_set_cmdline(argv
, optind
, 1);
2410 /* Treat --foo the same as -foo. */
2413 popt
= qemu_options
;
2416 error_report("invalid option");
2419 if (!strcmp(popt
->name
, r
+ 1))
2423 if (popt
->flags
& HAS_ARG
) {
2424 if (optind
>= argc
) {
2425 error_report("requires an argument");
2428 optarg
= argv
[optind
++];
2429 loc_set_cmdline(argv
, optind
- 2, 2);
2440 static MachineClass
*select_machine(void)
2442 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
2443 MachineClass
*machine_class
= find_default_machine(machines
);
2448 loc_push_none(&loc
);
2450 opts
= qemu_get_machine_opts();
2451 qemu_opts_loc_restore(opts
);
2453 optarg
= qemu_opt_get(opts
, "type");
2455 machine_class
= machine_parse(optarg
, machines
);
2458 if (!machine_class
) {
2459 error_report("No machine specified, and there is no default");
2460 error_printf("Use -machine help to list supported machines\n");
2465 g_slist_free(machines
);
2466 return machine_class
;
2469 static int object_parse_property_opt(Object
*obj
,
2470 const char *name
, const char *value
,
2471 const char *skip
, Error
**errp
)
2473 if (g_str_equal(name
, skip
)) {
2477 if (!object_property_parse(obj
, name
, value
, errp
)) {
2484 static int machine_set_property(void *opaque
,
2485 const char *name
, const char *value
,
2488 g_autofree
char *qom_name
= g_strdup(name
);
2491 for (p
= qom_name
; *p
; p
++) {
2497 /* Legacy options do not correspond to MachineState properties. */
2498 if (g_str_equal(qom_name
, "accel")) {
2501 if (g_str_equal(qom_name
, "igd-passthru")) {
2502 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name
, value
);
2505 if (g_str_equal(qom_name
, "kvm-shadow-mem") ||
2506 g_str_equal(qom_name
, "kernel-irqchip")) {
2507 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name
, value
);
2511 return object_parse_property_opt(opaque
, name
, value
, "type", errp
);
2515 * Initial object creation happens before all other
2516 * QEMU data types are created. The majority of objects
2517 * can be created at this point. The rng-egd object
2518 * cannot be created here, as it depends on the chardev
2521 static bool object_create_initial(const char *type
, QemuOpts
*opts
)
2523 if (user_creatable_print_help(type
, opts
)) {
2528 * Objects should not be made "delayed" without a reason. If you
2529 * add one, state the reason in a comment!
2532 /* Reason: rng-egd property "chardev" */
2533 if (g_str_equal(type
, "rng-egd")) {
2537 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2538 /* Reason: cryptodev-vhost-user property "chardev" */
2539 if (g_str_equal(type
, "cryptodev-vhost-user")) {
2545 * Reason: filter-* property "netdev" etc.
2547 if (g_str_equal(type
, "filter-buffer") ||
2548 g_str_equal(type
, "filter-dump") ||
2549 g_str_equal(type
, "filter-mirror") ||
2550 g_str_equal(type
, "filter-redirector") ||
2551 g_str_equal(type
, "colo-compare") ||
2552 g_str_equal(type
, "filter-rewriter") ||
2553 g_str_equal(type
, "filter-replay")) {
2557 /* Memory allocation by backends needs to be done
2558 * after configure_accelerator() (due to the tcg_enabled()
2559 * checks at memory_region_init_*()).
2561 * Also, allocation of large amounts of memory may delay
2562 * chardev initialization for too long, and trigger timeouts
2563 * on software that waits for a monitor socket to be created
2566 if (g_str_has_prefix(type
, "memory-backend-")) {
2575 * The remainder of object creation happens after the
2576 * creation of chardev, fsdev, net clients and device data types.
2578 static bool object_create_delayed(const char *type
, QemuOpts
*opts
)
2580 return !object_create_initial(type
, opts
);
2584 static bool set_memory_options(uint64_t *ram_slots
, ram_addr_t
*maxram_size
,
2588 const char *mem_str
;
2589 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2590 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2593 loc_push_none(&loc
);
2594 qemu_opts_loc_restore(opts
);
2597 mem_str
= qemu_opt_get(opts
, "size");
2600 error_report("missing 'size' option value");
2604 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2606 /* Fix up legacy suffix-less format */
2607 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2608 uint64_t overflow_check
= sz
;
2611 if (sz
/ MiB
!= overflow_check
) {
2612 error_report("too large 'size' option value");
2618 /* backward compatibility behaviour for case "-m 0" */
2620 sz
= default_ram_size
;
2623 sz
= QEMU_ALIGN_UP(sz
, 8192);
2624 if (mc
->fixup_ram_size
) {
2625 sz
= mc
->fixup_ram_size(sz
);
2628 if (ram_size
!= sz
) {
2629 error_report("ram size too large");
2633 /* store value for the future use */
2634 qemu_opt_set_number(opts
, "size", ram_size
, &error_abort
);
2635 *maxram_size
= ram_size
;
2637 if (qemu_opt_get(opts
, "maxmem")) {
2640 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2641 slots
= qemu_opt_get_number(opts
, "slots", 0);
2642 if (sz
< ram_size
) {
2643 error_report("invalid value of -m option maxmem: "
2644 "maximum memory size (0x%" PRIx64
") must be at least "
2645 "the initial memory size (0x" RAM_ADDR_FMT
")",
2648 } else if (slots
&& sz
== ram_size
) {
2649 error_report("invalid value of -m option maxmem: "
2650 "memory slots were specified but maximum memory size "
2651 "(0x%" PRIx64
") is equal to the initial memory size "
2652 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2658 } else if (qemu_opt_get(opts
, "slots")) {
2659 error_report("invalid -m option value: missing 'maxmem' option");
2667 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2671 g
= g_malloc0(sizeof(*g
));
2672 g
->driver
= qemu_opt_get(opts
, "driver");
2673 g
->property
= qemu_opt_get(opts
, "property");
2674 g
->value
= qemu_opt_get(opts
, "value");
2675 qdev_prop_register_global(g
);
2679 static int qemu_read_default_config_file(void)
2683 ret
= qemu_read_config_file(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2684 if (ret
< 0 && ret
!= -ENOENT
) {
2691 static void user_register_global_props(void)
2693 qemu_opts_foreach(qemu_find_opts("global"),
2694 global_init_func
, NULL
, NULL
);
2697 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2699 configure_icount(opts
, errp
);
2703 static int accelerator_set_property(void *opaque
,
2704 const char *name
, const char *value
,
2707 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2710 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2712 bool *p_init_failed
= opaque
;
2713 const char *acc
= qemu_opt_get(opts
, "accel");
2714 AccelClass
*ac
= accel_find(acc
);
2719 *p_init_failed
= true;
2720 error_report("invalid accelerator %s", acc
);
2723 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2724 object_apply_compat_props(OBJECT(accel
));
2725 qemu_opt_foreach(opts
, accelerator_set_property
,
2729 ret
= accel_init_machine(accel
, current_machine
);
2731 *p_init_failed
= true;
2732 error_report("failed to initialize %s: %s",
2733 acc
, strerror(-ret
));
2740 static void configure_accelerators(const char *progname
)
2743 bool init_failed
= false;
2745 qemu_opts_foreach(qemu_find_opts("icount"),
2746 do_configure_icount
, NULL
, &error_fatal
);
2748 accel
= qemu_opt_get(qemu_get_machine_opts(), "accel");
2749 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2750 char **accel_list
, **tmp
;
2752 if (accel
== NULL
) {
2753 /* Select the default accelerator */
2754 bool have_tcg
= accel_find("tcg");
2755 bool have_kvm
= accel_find("kvm");
2757 if (have_tcg
&& have_kvm
) {
2758 if (g_str_has_suffix(progname
, "kvm")) {
2759 /* If the program name ends with "kvm", we prefer KVM */
2764 } else if (have_kvm
) {
2766 } else if (have_tcg
) {
2769 error_report("No accelerator selected and"
2770 " no default accelerator available");
2774 accel_list
= g_strsplit(accel
, ":", 0);
2776 for (tmp
= accel_list
; *tmp
; tmp
++) {
2778 * Filter invalid accelerators here, to prevent obscenities
2779 * such as "-machine accel=tcg,,thread=single".
2781 if (accel_find(*tmp
)) {
2782 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2785 error_report("invalid accelerator %s", *tmp
);
2788 g_strfreev(accel_list
);
2790 if (accel
!= NULL
) {
2791 error_report("The -accel and \"-machine accel=\" options are incompatible");
2796 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2797 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2799 error_report("no accelerator found");
2805 AccelClass
*ac
= ACCEL_GET_CLASS(current_accel());
2806 error_report("falling back to %s", ac
->name
);
2809 if (use_icount
&& !(tcg_enabled() || qtest_enabled())) {
2810 error_report("-icount is not allowed with hardware virtualization");
2815 static void create_default_memdev(MachineState
*ms
, const char *path
)
2818 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
2820 obj
= object_new(path
? TYPE_MEMORY_BACKEND_FILE
: TYPE_MEMORY_BACKEND_RAM
);
2822 object_property_set_str(obj
, "mem-path", path
, &error_fatal
);
2824 object_property_set_int(obj
, "size", ms
->ram_size
, &error_fatal
);
2825 object_property_add_child(object_get_objects_root(), mc
->default_ram_id
,
2827 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2828 object_property_set_bool(obj
, "x-use-canonical-path-for-ramblock-id",
2829 false, &error_fatal
);
2830 user_creatable_complete(USER_CREATABLE(obj
), &error_fatal
);
2832 object_property_set_str(OBJECT(ms
), "memory-backend", mc
->default_ram_id
,
2836 void qemu_init(int argc
, char **argv
, char **envp
)
2839 int snapshot
, linux_boot
;
2840 const char *initrd_filename
;
2841 const char *kernel_filename
, *kernel_cmdline
;
2842 const char *boot_order
= NULL
;
2843 const char *boot_once
= NULL
;
2845 QemuOpts
*opts
, *machine_opts
;
2846 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2847 QemuOptsList
*olist
;
2850 const char *loadvm
= NULL
;
2851 MachineClass
*machine_class
;
2852 const char *cpu_option
;
2853 const char *vga_model
= NULL
;
2854 const char *qtest_chrdev
= NULL
;
2855 const char *qtest_log
= NULL
;
2856 const char *incoming
= NULL
;
2857 bool userconfig
= true;
2858 bool nographic
= false;
2859 int display_remote
= 0;
2860 const char *log_mask
= NULL
;
2861 const char *log_file
= NULL
;
2862 char *trace_file
= NULL
;
2863 ram_addr_t maxram_size
;
2864 uint64_t ram_slots
= 0;
2865 FILE *vmstate_dump_file
= NULL
;
2866 Error
*main_loop_err
= NULL
;
2868 bool list_data_dirs
= false;
2870 const char *mem_path
= NULL
;
2871 bool have_custom_ram_size
;
2872 BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
2873 QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
2874 int mem_prealloc
= 0; /* force preallocation of physical target memory */
2876 os_set_line_buffering();
2878 error_init(argv
[0]);
2879 module_call_init(MODULE_INIT_TRACE
);
2881 qemu_init_cpu_list();
2882 qemu_init_cpu_loop();
2884 qemu_mutex_lock_iothread();
2886 atexit(qemu_run_exit_notifiers
);
2887 qemu_init_exec_dir(argv
[0]);
2889 module_call_init(MODULE_INIT_QOM
);
2890 module_call_init(MODULE_INIT_MIGRATION
);
2892 qemu_add_opts(&qemu_drive_opts
);
2893 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2894 qemu_add_drive_opts(&qemu_common_drive_opts
);
2895 qemu_add_drive_opts(&qemu_drive_opts
);
2896 qemu_add_drive_opts(&bdrv_runtime_opts
);
2897 qemu_add_opts(&qemu_chardev_opts
);
2898 qemu_add_opts(&qemu_device_opts
);
2899 qemu_add_opts(&qemu_netdev_opts
);
2900 qemu_add_opts(&qemu_nic_opts
);
2901 qemu_add_opts(&qemu_net_opts
);
2902 qemu_add_opts(&qemu_rtc_opts
);
2903 qemu_add_opts(&qemu_global_opts
);
2904 qemu_add_opts(&qemu_mon_opts
);
2905 qemu_add_opts(&qemu_trace_opts
);
2906 qemu_plugin_add_opts();
2907 qemu_add_opts(&qemu_option_rom_opts
);
2908 qemu_add_opts(&qemu_machine_opts
);
2909 qemu_add_opts(&qemu_accel_opts
);
2910 qemu_add_opts(&qemu_mem_opts
);
2911 qemu_add_opts(&qemu_smp_opts
);
2912 qemu_add_opts(&qemu_boot_opts
);
2913 qemu_add_opts(&qemu_add_fd_opts
);
2914 qemu_add_opts(&qemu_object_opts
);
2915 qemu_add_opts(&qemu_tpmdev_opts
);
2916 qemu_add_opts(&qemu_realtime_opts
);
2917 qemu_add_opts(&qemu_overcommit_opts
);
2918 qemu_add_opts(&qemu_msg_opts
);
2919 qemu_add_opts(&qemu_name_opts
);
2920 qemu_add_opts(&qemu_numa_opts
);
2921 qemu_add_opts(&qemu_icount_opts
);
2922 qemu_add_opts(&qemu_semihosting_config_opts
);
2923 qemu_add_opts(&qemu_fw_cfg_opts
);
2924 module_call_init(MODULE_INIT_OPTS
);
2927 precopy_infrastructure_init();
2928 postcopy_infrastructure_init();
2929 monitor_init_globals();
2931 if (qcrypto_init(&err
) < 0) {
2932 error_reportf_err(err
, "cannot initialize crypto: ");
2936 QTAILQ_INIT(&vm_change_state_head
);
2937 os_setup_early_signal_handling();
2944 bdrv_init_with_whitelist();
2948 /* first pass of option parsing */
2950 while (optind
< argc
) {
2951 if (argv
[optind
][0] != '-') {
2955 const QEMUOption
*popt
;
2957 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2958 switch (popt
->index
) {
2959 case QEMU_OPTION_nouserconfig
:
2967 if (qemu_read_default_config_file() < 0) {
2972 /* second pass of option parsing */
2977 if (argv
[optind
][0] != '-') {
2978 loc_set_cmdline(argv
, optind
, 1);
2979 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2981 const QEMUOption
*popt
;
2983 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2984 if (!(popt
->arch_mask
& arch_type
)) {
2985 error_report("Option not supported for this target");
2988 switch(popt
->index
) {
2989 case QEMU_OPTION_cpu
:
2990 /* hw initialization will check this */
2991 cpu_option
= optarg
;
2993 case QEMU_OPTION_hda
:
2994 case QEMU_OPTION_hdb
:
2995 case QEMU_OPTION_hdc
:
2996 case QEMU_OPTION_hdd
:
2997 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
3000 case QEMU_OPTION_blockdev
:
3003 BlockdevOptionsQueueEntry
*bdo
;
3005 v
= qobject_input_visitor_new_str(optarg
, "driver",
3008 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
3009 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
3012 loc_save(&bdo
->loc
);
3013 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
3016 case QEMU_OPTION_drive
:
3017 if (drive_def(optarg
) == NULL
) {
3021 case QEMU_OPTION_set
:
3022 if (qemu_set_option(optarg
) != 0)
3025 case QEMU_OPTION_global
:
3026 if (qemu_global_option(optarg
) != 0)
3029 case QEMU_OPTION_mtdblock
:
3030 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
3032 case QEMU_OPTION_sd
:
3033 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
3035 case QEMU_OPTION_pflash
:
3036 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
3038 case QEMU_OPTION_snapshot
:
3040 Error
*blocker
= NULL
;
3042 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
3044 replay_add_blocker(blocker
);
3047 case QEMU_OPTION_numa
:
3048 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
3054 case QEMU_OPTION_display
:
3055 parse_display(optarg
);
3057 case QEMU_OPTION_nographic
:
3058 olist
= qemu_find_opts("machine");
3059 qemu_opts_parse_noisily(olist
, "graphics=off", false);
3061 dpy
.type
= DISPLAY_TYPE_NONE
;
3063 case QEMU_OPTION_curses
:
3064 #ifdef CONFIG_CURSES
3065 dpy
.type
= DISPLAY_TYPE_CURSES
;
3067 error_report("curses or iconv support is disabled");
3071 case QEMU_OPTION_portrait
:
3072 graphic_rotate
= 90;
3074 case QEMU_OPTION_rotate
:
3075 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
3076 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
3077 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
3078 error_report("only 90, 180, 270 deg rotation is available");
3082 case QEMU_OPTION_kernel
:
3083 qemu_opts_set(qemu_find_opts("machine"), NULL
, "kernel", optarg
,
3086 case QEMU_OPTION_initrd
:
3087 qemu_opts_set(qemu_find_opts("machine"), NULL
, "initrd", optarg
,
3090 case QEMU_OPTION_append
:
3091 qemu_opts_set(qemu_find_opts("machine"), NULL
, "append", optarg
,
3094 case QEMU_OPTION_dtb
:
3095 qemu_opts_set(qemu_find_opts("machine"), NULL
, "dtb", optarg
,
3098 case QEMU_OPTION_cdrom
:
3099 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
3101 case QEMU_OPTION_boot
:
3102 opts
= qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3108 case QEMU_OPTION_fda
:
3109 case QEMU_OPTION_fdb
:
3110 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
3113 case QEMU_OPTION_no_fd_bootchk
:
3116 case QEMU_OPTION_netdev
:
3118 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
3122 case QEMU_OPTION_nic
:
3124 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
3128 case QEMU_OPTION_net
:
3130 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
3134 #ifdef CONFIG_LIBISCSI
3135 case QEMU_OPTION_iscsi
:
3136 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3143 case QEMU_OPTION_audio_help
:
3144 audio_legacy_help();
3147 case QEMU_OPTION_audiodev
:
3148 audio_parse_option(optarg
);
3150 case QEMU_OPTION_soundhw
:
3151 select_soundhw (optarg
);
3156 case QEMU_OPTION_version
:
3161 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3168 case QEMU_OPTION_tpmdev
:
3169 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3174 case QEMU_OPTION_mempath
:
3177 case QEMU_OPTION_mem_prealloc
:
3186 case QEMU_OPTION_DFILTER
:
3187 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3189 case QEMU_OPTION_seed
:
3190 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3193 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3195 case QEMU_OPTION_gdb
:
3196 add_device_config(DEV_GDB
, optarg
);
3199 if (is_help_option(optarg
)) {
3200 list_data_dirs
= true;
3202 qemu_add_data_dir(optarg
);
3205 case QEMU_OPTION_bios
:
3206 qemu_opts_set(qemu_find_opts("machine"), NULL
, "firmware", optarg
,
3209 case QEMU_OPTION_singlestep
:
3216 keyboard_layout
= optarg
;
3218 case QEMU_OPTION_vga
:
3227 w
= strtol(p
, (char **)&p
, 10);
3230 error_report("invalid resolution or depth");
3236 h
= strtol(p
, (char **)&p
, 10);
3241 depth
= strtol(p
, (char **)&p
, 10);
3242 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3243 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3244 depth
!= 24 && depth
!= 32)
3246 } else if (*p
== '\0') {
3247 depth
= graphic_depth
;
3254 graphic_depth
= depth
;
3257 case QEMU_OPTION_echr
:
3260 term_escape_char
= strtol(optarg
, &r
, 0);
3262 printf("Bad argument to echr\n");
3265 case QEMU_OPTION_monitor
:
3266 default_monitor
= 0;
3267 if (strncmp(optarg
, "none", 4)) {
3268 monitor_parse(optarg
, "readline", false);
3271 case QEMU_OPTION_qmp
:
3272 monitor_parse(optarg
, "control", false);
3273 default_monitor
= 0;
3275 case QEMU_OPTION_qmp_pretty
:
3276 monitor_parse(optarg
, "control", true);
3277 default_monitor
= 0;
3279 case QEMU_OPTION_mon
:
3280 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3285 default_monitor
= 0;
3287 case QEMU_OPTION_chardev
:
3288 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3294 case QEMU_OPTION_fsdev
:
3295 olist
= qemu_find_opts("fsdev");
3297 error_report("fsdev support is disabled");
3300 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3305 case QEMU_OPTION_virtfs
: {
3308 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3311 olist
= qemu_find_opts("virtfs");
3313 error_report("virtfs support is disabled");
3316 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3321 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3322 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3323 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3326 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3327 qemu_opts_id(opts
) ?:
3328 qemu_opt_get(opts
, "mount_tag"),
3331 error_report("duplicate or invalid fsdev id: %s",
3332 qemu_opt_get(opts
, "mount_tag"));
3336 writeout
= qemu_opt_get(opts
, "writeout");
3338 #ifdef CONFIG_SYNC_FILE_RANGE
3339 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3341 error_report("writeout=immediate not supported "
3342 "on this platform");
3346 qemu_opt_set(fsdev
, "fsdriver",
3347 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3348 path
= qemu_opt_get(opts
, "path");
3350 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3352 security_model
= qemu_opt_get(opts
, "security_model");
3353 if (security_model
) {
3354 qemu_opt_set(fsdev
, "security_model", security_model
,
3357 socket
= qemu_opt_get(opts
, "socket");
3359 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3361 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3363 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3366 qemu_opt_set_bool(fsdev
, "readonly",
3367 qemu_opt_get_bool(opts
, "readonly", 0),
3369 multidevs
= qemu_opt_get(opts
, "multidevs");
3371 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3373 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3375 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3376 qemu_opt_set(device
, "fsdev",
3377 qemu_opts_id(fsdev
), &error_abort
);
3378 qemu_opt_set(device
, "mount_tag",
3379 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3382 case QEMU_OPTION_serial
:
3383 add_device_config(DEV_SERIAL
, optarg
);
3385 if (strncmp(optarg
, "mon:", 4) == 0) {
3386 default_monitor
= 0;
3389 case QEMU_OPTION_watchdog
:
3391 error_report("only one watchdog option may be given");
3396 case QEMU_OPTION_watchdog_action
:
3397 if (select_watchdog_action(optarg
) == -1) {
3398 error_report("unknown -watchdog-action parameter");
3402 case QEMU_OPTION_parallel
:
3403 add_device_config(DEV_PARALLEL
, optarg
);
3404 default_parallel
= 0;
3405 if (strncmp(optarg
, "mon:", 4) == 0) {
3406 default_monitor
= 0;
3409 case QEMU_OPTION_debugcon
:
3410 add_device_config(DEV_DEBUGCON
, optarg
);
3412 case QEMU_OPTION_loadvm
:
3415 case QEMU_OPTION_full_screen
:
3416 dpy
.has_full_screen
= true;
3417 dpy
.full_screen
= true;
3419 case QEMU_OPTION_alt_grab
:
3422 case QEMU_OPTION_ctrl_grab
:
3425 case QEMU_OPTION_no_quit
:
3426 dpy
.has_window_close
= true;
3427 dpy
.window_close
= false;
3429 case QEMU_OPTION_sdl
:
3431 dpy
.type
= DISPLAY_TYPE_SDL
;
3434 error_report("SDL support is disabled");
3437 case QEMU_OPTION_pidfile
:
3440 case QEMU_OPTION_win2k_hack
:
3441 win2k_install_hack
= 1;
3443 case QEMU_OPTION_acpitable
:
3444 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3449 acpi_table_add(opts
, &error_fatal
);
3451 case QEMU_OPTION_smbios
:
3452 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3457 smbios_entry_add(opts
, &error_fatal
);
3459 case QEMU_OPTION_fwcfg
:
3460 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3466 case QEMU_OPTION_preconfig
:
3467 preconfig_exit_requested
= false;
3469 case QEMU_OPTION_enable_kvm
:
3470 olist
= qemu_find_opts("machine");
3471 qemu_opts_parse_noisily(olist
, "accel=kvm", false);
3474 case QEMU_OPTION_machine
:
3475 olist
= qemu_find_opts("machine");
3476 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3481 case QEMU_OPTION_no_kvm
:
3482 olist
= qemu_find_opts("machine");
3483 qemu_opts_parse_noisily(olist
, "accel=tcg", false);
3485 case QEMU_OPTION_accel
:
3486 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3488 optarg
= qemu_opt_get(accel_opts
, "accel");
3489 if (!optarg
|| is_help_option(optarg
)) {
3490 printf("Accelerators supported in QEMU binary:\n");
3491 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3493 for (el
= accel_list
; el
; el
= el
->next
) {
3494 gchar
*typename
= g_strdup(object_class_get_name(
3495 OBJECT_CLASS(el
->data
)));
3496 /* omit qtest which is used for tests only */
3497 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3498 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3499 gchar
**optname
= g_strsplit(typename
,
3500 ACCEL_CLASS_SUFFIX
, 0);
3501 printf("%s\n", optname
[0]);
3502 g_strfreev(optname
);
3506 g_slist_free(accel_list
);
3510 case QEMU_OPTION_usb
:
3511 olist
= qemu_find_opts("machine");
3512 qemu_opts_parse_noisily(olist
, "usb=on", false);
3514 case QEMU_OPTION_usbdevice
:
3515 error_report("'-usbdevice' is deprecated, please use "
3516 "'-device usb-...' instead");
3517 olist
= qemu_find_opts("machine");
3518 qemu_opts_parse_noisily(olist
, "usb=on", false);
3519 add_device_config(DEV_USB
, optarg
);
3521 case QEMU_OPTION_device
:
3522 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3527 case QEMU_OPTION_smp
:
3528 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3533 case QEMU_OPTION_vnc
:
3534 vnc_parse(optarg
, &error_fatal
);
3536 case QEMU_OPTION_no_acpi
:
3537 olist
= qemu_find_opts("machine");
3538 qemu_opts_parse_noisily(olist
, "acpi=off", false);
3540 case QEMU_OPTION_no_hpet
:
3543 case QEMU_OPTION_no_reboot
:
3546 case QEMU_OPTION_no_shutdown
:
3549 case QEMU_OPTION_show_cursor
:
3550 warn_report("The -show-cursor option is deprecated. Please "
3551 "add show-cursor=on to your -display options.");
3552 warn_report("When using the default display you can use "
3553 "-display default,show-cursor=on");
3554 dpy
.has_show_cursor
= true;
3555 dpy
.show_cursor
= true;
3557 case QEMU_OPTION_uuid
:
3558 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3559 error_report("failed to parse UUID string: wrong format");
3562 qemu_uuid_set
= true;
3564 case QEMU_OPTION_option_rom
:
3565 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3566 error_report("too many option ROMs");
3569 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3574 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3575 option_rom
[nb_option_roms
].bootindex
=
3576 qemu_opt_get_number(opts
, "bootindex", -1);
3577 if (!option_rom
[nb_option_roms
].name
) {
3578 error_report("Option ROM file is not specified");
3583 case QEMU_OPTION_semihosting
:
3584 qemu_semihosting_enable();
3586 case QEMU_OPTION_semihosting_config
:
3587 if (qemu_semihosting_config_options(optarg
) != 0) {
3591 case QEMU_OPTION_name
:
3592 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3597 /* Capture guest name if -msg guest-name is used later */
3598 error_guest_name
= qemu_opt_get(opts
, "guest");
3600 case QEMU_OPTION_prom_env
:
3601 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3602 error_report("too many prom variables");
3605 prom_envs
[nb_prom_envs
] = optarg
;
3608 case QEMU_OPTION_old_param
:
3611 case QEMU_OPTION_rtc
:
3612 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3618 case QEMU_OPTION_tb_size
:
3620 error_report("TCG is disabled");
3623 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3624 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg
);
3626 case QEMU_OPTION_icount
:
3627 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3633 case QEMU_OPTION_incoming
:
3635 runstate_set(RUN_STATE_INMIGRATE
);
3639 case QEMU_OPTION_only_migratable
:
3640 only_migratable
= 1;
3642 case QEMU_OPTION_nodefaults
:
3645 case QEMU_OPTION_xen_domid
:
3646 if (!(xen_available())) {
3647 error_report("Option not supported for this target");
3650 xen_domid
= atoi(optarg
);
3652 case QEMU_OPTION_xen_attach
:
3653 if (!(xen_available())) {
3654 error_report("Option not supported for this target");
3657 xen_mode
= XEN_ATTACH
;
3659 case QEMU_OPTION_xen_domid_restrict
:
3660 if (!(xen_available())) {
3661 error_report("Option not supported for this target");
3664 xen_domid_restrict
= true;
3666 case QEMU_OPTION_trace
:
3668 trace_file
= trace_opt_parse(optarg
);
3670 case QEMU_OPTION_plugin
:
3671 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3673 case QEMU_OPTION_readconfig
:
3675 int ret
= qemu_read_config_file(optarg
);
3677 error_report("read config %s: %s", optarg
,
3683 case QEMU_OPTION_spice
:
3684 olist
= qemu_find_opts("spice");
3686 error_report("spice support is disabled");
3689 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3695 case QEMU_OPTION_writeconfig
:
3698 if (strcmp(optarg
, "-") == 0) {
3701 fp
= fopen(optarg
, "w");
3703 error_report("open %s: %s", optarg
,
3708 qemu_config_write(fp
);
3714 case QEMU_OPTION_qtest
:
3715 qtest_chrdev
= optarg
;
3717 case QEMU_OPTION_qtest_log
:
3720 case QEMU_OPTION_sandbox
:
3721 olist
= qemu_find_opts("sandbox");
3723 #ifndef CONFIG_SECCOMP
3724 error_report("-sandbox support is not enabled "
3725 "in this QEMU binary");
3730 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3735 case QEMU_OPTION_add_fd
:
3737 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3743 error_report("File descriptor passing is disabled on this "
3748 case QEMU_OPTION_object
:
3749 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
3755 case QEMU_OPTION_realtime
:
3756 warn_report("'-realtime mlock=...' is deprecated, please use "
3757 "'-overcommit mem-lock=...' instead");
3758 opts
= qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3763 /* Don't override the -overcommit option if set */
3764 enable_mlock
= enable_mlock
||
3765 qemu_opt_get_bool(opts
, "mlock", true);
3767 case QEMU_OPTION_overcommit
:
3768 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3773 /* Don't override the -realtime option if set */
3774 enable_mlock
= enable_mlock
||
3775 qemu_opt_get_bool(opts
, "mem-lock", false);
3776 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3778 case QEMU_OPTION_msg
:
3779 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3784 configure_msg(opts
);
3786 case QEMU_OPTION_dump_vmstate
:
3787 if (vmstate_dump_file
) {
3788 error_report("only one '-dump-vmstate' "
3789 "option may be given");
3792 vmstate_dump_file
= fopen(optarg
, "w");
3793 if (vmstate_dump_file
== NULL
) {
3794 error_report("open %s: %s", optarg
, strerror(errno
));
3798 case QEMU_OPTION_enable_sync_profile
:
3801 case QEMU_OPTION_nouserconfig
:
3802 /* Nothing to be parsed here. Especially, do not error out below. */
3805 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3806 error_report("Option not supported in this build");
3813 * Clear error location left behind by the loop.
3814 * Best done right after the loop. Do not insert code here!
3819 * Check for -cpu help and -device help before we call select_machine(),
3820 * which will return an error if the architecture has no default machine
3821 * type and the user did not specify one, so that the user doesn't need
3822 * to say '-cpu help -machine something'.
3824 if (cpu_option
&& is_help_option(cpu_option
)) {
3825 list_cpus(cpu_option
);
3829 if (qemu_opts_foreach(qemu_find_opts("device"),
3830 device_help_func
, NULL
, NULL
)) {
3834 user_register_global_props();
3836 replay_configure(icount_opts
);
3838 if (incoming
&& !preconfig_exit_requested
) {
3839 error_report("'preconfig' and 'incoming' options are "
3840 "mutually exclusive");
3844 configure_rtc(qemu_find_opts_singleton("rtc"));
3846 machine_class
= select_machine();
3847 object_set_machine_compat_props(machine_class
->compat_props
);
3849 have_custom_ram_size
= set_memory_options(&ram_slots
, &maxram_size
,
3853 rcu_disable_atfork();
3855 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
3856 error_reportf_err(err
, "cannot create PID file: ");
3860 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
3861 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
3863 if (qemu_init_main_loop(&main_loop_err
)) {
3864 error_report_err(main_loop_err
);
3868 #ifdef CONFIG_SECCOMP
3869 olist
= qemu_find_opts_err("sandbox", NULL
);
3871 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
3875 qemu_opts_foreach(qemu_find_opts("name"),
3876 parse_name
, NULL
, &error_fatal
);
3879 qemu_opts_foreach(qemu_find_opts("add-fd"),
3880 parse_add_fd
, NULL
, &error_fatal
);
3882 qemu_opts_foreach(qemu_find_opts("add-fd"),
3883 cleanup_add_fd
, NULL
, &error_fatal
);
3886 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
3887 if (machine_help_func(qemu_get_machine_opts(), current_machine
)) {
3890 object_property_add_child(object_get_root(), "machine",
3891 OBJECT(current_machine
));
3892 object_property_add_child(container_get(OBJECT(current_machine
),
3894 "sysbus", OBJECT(sysbus_get_default()));
3896 if (machine_class
->minimum_page_bits
) {
3897 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
3898 /* This would be a board error: specifying a minimum smaller than
3899 * a target's compile-time fixed setting.
3901 g_assert_not_reached();
3905 cpu_exec_init_all();
3907 if (machine_class
->hw_version
) {
3908 qemu_set_hw_version(machine_class
->hw_version
);
3911 if (!trace_init_backends()) {
3914 trace_init_file(trace_file
);
3916 /* Open the logfile at this point and set the log mask if necessary.
3918 qemu_set_log_filename(log_file
, &error_fatal
);
3921 mask
= qemu_str_to_log_mask(log_mask
);
3923 qemu_print_log_usage(stdout
);
3931 /* add configured firmware directories */
3932 dirs
= g_strsplit(CONFIG_QEMU_FIRMWAREPATH
, G_SEARCHPATH_SEPARATOR_S
, 0);
3933 for (i
= 0; dirs
[i
] != NULL
; i
++) {
3934 qemu_add_data_dir(dirs
[i
]);
3938 /* try to find datadir relative to the executable path */
3939 dir
= os_find_datadir();
3940 qemu_add_data_dir(dir
);
3943 /* add the datadir specified when building */
3944 qemu_add_data_dir(CONFIG_QEMU_DATADIR
);
3946 /* -L help lists the data directories and exits. */
3947 if (list_data_dirs
) {
3948 for (i
= 0; i
< data_dir_idx
; i
++) {
3949 printf("%s\n", data_dir
[i
]);
3954 /* machine_class: default to UP */
3955 machine_class
->max_cpus
= machine_class
->max_cpus
?: 1;
3956 machine_class
->min_cpus
= machine_class
->min_cpus
?: 1;
3957 machine_class
->default_cpus
= machine_class
->default_cpus
?: 1;
3959 /* default to machine_class->default_cpus */
3960 current_machine
->smp
.cpus
= machine_class
->default_cpus
;
3961 current_machine
->smp
.max_cpus
= machine_class
->default_cpus
;
3962 current_machine
->smp
.cores
= 1;
3963 current_machine
->smp
.threads
= 1;
3964 current_machine
->smp
.sockets
= 1;
3966 machine_class
->smp_parse(current_machine
,
3967 qemu_opts_find(qemu_find_opts("smp-opts"), NULL
));
3969 /* sanity-check smp_cpus and max_cpus against machine_class */
3970 if (current_machine
->smp
.cpus
< machine_class
->min_cpus
) {
3971 error_report("Invalid SMP CPUs %d. The min CPUs "
3972 "supported by machine '%s' is %d",
3973 current_machine
->smp
.cpus
,
3974 machine_class
->name
, machine_class
->min_cpus
);
3977 if (current_machine
->smp
.max_cpus
> machine_class
->max_cpus
) {
3978 error_report("Invalid SMP CPUs %d. The max CPUs "
3979 "supported by machine '%s' is %d",
3980 current_machine
->smp
.max_cpus
,
3981 machine_class
->name
, machine_class
->max_cpus
);
3988 val
= g_strdup_printf("%d", current_machine
->smp
.cpus
);
3989 object_register_sugar_prop("memory-backend", "prealloc-threads", val
);
3991 object_register_sugar_prop("memory-backend", "prealloc", "on");
3995 * Get the default machine options from the machine if it is not already
3996 * specified either by the configuration file or by the command line.
3998 if (machine_class
->default_machine_opts
) {
3999 qemu_opts_set_defaults(qemu_find_opts("machine"),
4000 machine_class
->default_machine_opts
, 0);
4003 /* process plugin before CPUs are created, but once -smp has been parsed */
4004 if (qemu_plugin_load_list(&plugin_list
)) {
4008 qemu_opts_foreach(qemu_find_opts("device"),
4009 default_driver_check
, NULL
, NULL
);
4010 qemu_opts_foreach(qemu_find_opts("global"),
4011 default_driver_check
, NULL
, NULL
);
4013 if (!vga_model
&& !default_vga
) {
4014 vga_interface_type
= VGA_DEVICE
;
4016 if (!has_defaults
|| machine_class
->no_serial
) {
4019 if (!has_defaults
|| machine_class
->no_parallel
) {
4020 default_parallel
= 0;
4022 if (!has_defaults
|| machine_class
->no_floppy
) {
4025 if (!has_defaults
|| machine_class
->no_cdrom
) {
4028 if (!has_defaults
|| machine_class
->no_sdcard
) {
4031 if (!has_defaults
) {
4032 default_monitor
= 0;
4037 if (is_daemonized()) {
4038 if (!preconfig_exit_requested
) {
4039 error_report("'preconfig' and 'daemonize' options are "
4040 "mutually exclusive");
4044 /* According to documentation and historically, -nographic redirects
4045 * serial port, parallel port and monitor to stdio, which does not work
4046 * with -daemonize. We can redirect these to null instead, but since
4047 * -nographic is legacy, let's just error out.
4048 * We disallow -nographic only if all other ports are not redirected
4049 * explicitly, to not break existing legacy setups which uses
4050 * -nographic _and_ redirects all ports explicitly - this is valid
4051 * usage, -nographic is just a no-op in this case.
4054 && (default_parallel
|| default_serial
|| default_monitor
)) {
4055 error_report("-nographic cannot be used with -daemonize");
4058 #ifdef CONFIG_CURSES
4059 if (dpy
.type
== DISPLAY_TYPE_CURSES
) {
4060 error_report("curses display cannot be used with -daemonize");
4067 if (default_parallel
)
4068 add_device_config(DEV_PARALLEL
, "null");
4069 if (default_serial
&& default_monitor
) {
4070 add_device_config(DEV_SERIAL
, "mon:stdio");
4073 add_device_config(DEV_SERIAL
, "stdio");
4074 if (default_monitor
)
4075 monitor_parse("stdio", "readline", false);
4079 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
4080 if (default_parallel
)
4081 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
4082 if (default_monitor
)
4083 monitor_parse("vc:80Cx24C", "readline", false);
4086 #if defined(CONFIG_VNC)
4087 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
4091 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
4092 if (!qemu_display_find_default(&dpy
)) {
4093 dpy
.type
= DISPLAY_TYPE_NONE
;
4094 #if defined(CONFIG_VNC)
4095 vnc_parse("localhost:0,to=99,id=default", &error_abort
);
4099 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
4100 dpy
.type
= DISPLAY_TYPE_NONE
;
4103 if ((alt_grab
|| ctrl_grab
) && dpy
.type
!= DISPLAY_TYPE_SDL
) {
4104 error_report("-alt-grab and -ctrl-grab are only valid "
4105 "for SDL, ignoring option");
4107 if (dpy
.has_window_close
&&
4108 (dpy
.type
!= DISPLAY_TYPE_GTK
&& dpy
.type
!= DISPLAY_TYPE_SDL
)) {
4109 error_report("-no-quit is only valid for GTK and SDL, "
4113 qemu_display_early_init(&dpy
);
4114 qemu_console_early_init();
4116 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
4117 #if defined(CONFIG_OPENGL)
4118 error_report("OpenGL is not supported by the display");
4120 error_report("OpenGL support is disabled");
4128 qemu_opts_foreach(qemu_find_opts("object"),
4129 user_creatable_add_opts_foreach
,
4130 object_create_initial
, &error_fatal
);
4132 qemu_opts_foreach(qemu_find_opts("chardev"),
4133 chardev_init_func
, NULL
, &error_fatal
);
4134 /* now chardevs have been created we may have semihosting to connect */
4135 qemu_semihosting_connect_chardevs();
4137 #ifdef CONFIG_VIRTFS
4138 qemu_opts_foreach(qemu_find_opts("fsdev"),
4139 fsdev_init_func
, NULL
, &error_fatal
);
4142 /* spice needs the timers to be initialized by this point */
4143 /* spice must initialize before audio as it changes the default auiodev */
4147 * Note: we need to create audio and block backends before
4148 * machine_set_property(), so machine properties can refer to
4151 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
4152 audio_init_audiodevs();
4154 machine_opts
= qemu_get_machine_opts();
4155 qemu_opt_foreach(machine_opts
, machine_set_property
, current_machine
,
4157 current_machine
->ram_size
= ram_size
;
4158 current_machine
->maxram_size
= maxram_size
;
4159 current_machine
->ram_slots
= ram_slots
;
4162 * Note: uses machine properties such as kernel-irqchip, must run
4163 * after machine_set_property().
4165 configure_accelerators(argv
[0]);
4168 * Beware, QOM objects created before this point miss global and
4169 * compat properties.
4171 * Global properties get set up by qdev_prop_register_global(),
4172 * called from user_register_global_props(), and certain option
4173 * desugaring. Also in CPU feature desugaring (buried in
4174 * parse_cpu_option()), which happens below this point, but may
4175 * only target the CPU type, which can only be created after
4176 * parse_cpu_option() returned the type.
4178 * Machine compat properties: object_set_machine_compat_props().
4179 * Accelerator compat props: object_set_accelerator_compat_props(),
4180 * called from configure_accelerator().
4183 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
4184 error_report("Machine type '%s' is deprecated: %s",
4185 machine_class
->name
, machine_class
->deprecation_reason
);
4189 * Note: creates a QOM object, must run only after global and
4190 * compat properties have been set up.
4192 migration_object_init();
4195 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
4198 machine_opts
= qemu_get_machine_opts();
4199 kernel_filename
= qemu_opt_get(machine_opts
, "kernel");
4200 initrd_filename
= qemu_opt_get(machine_opts
, "initrd");
4201 kernel_cmdline
= qemu_opt_get(machine_opts
, "append");
4202 bios_name
= qemu_opt_get(machine_opts
, "firmware");
4204 opts
= qemu_opts_find(qemu_find_opts("boot-opts"), NULL
);
4206 boot_order
= qemu_opt_get(opts
, "order");
4208 validate_bootdevices(boot_order
, &error_fatal
);
4211 boot_once
= qemu_opt_get(opts
, "once");
4213 validate_bootdevices(boot_once
, &error_fatal
);
4216 boot_menu
= qemu_opt_get_bool(opts
, "menu", boot_menu
);
4217 boot_strict
= qemu_opt_get_bool(opts
, "strict", false);
4221 boot_order
= machine_class
->default_boot_order
;
4224 if (!kernel_cmdline
) {
4225 kernel_cmdline
= "";
4226 current_machine
->kernel_cmdline
= (char *)kernel_cmdline
;
4229 linux_boot
= (kernel_filename
!= NULL
);
4231 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4232 error_report("-append only allowed with -kernel option");
4236 if (!linux_boot
&& initrd_filename
!= NULL
) {
4237 error_report("-initrd only allowed with -kernel option");
4241 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename
) {
4242 /* fall back to the -kernel/-append */
4243 semihosting_arg_fallback(kernel_filename
, kernel_cmdline
);
4249 QemuOptsList
*net
= qemu_find_opts("net");
4250 qemu_opts_set(net
, NULL
, "type", "nic", &error_abort
);
4252 qemu_opts_set(net
, NULL
, "type", "user", &error_abort
);
4256 if (net_init_clients(&err
) < 0) {
4257 error_report_err(err
);
4261 qemu_opts_foreach(qemu_find_opts("object"),
4262 user_creatable_add_opts_foreach
,
4263 object_create_delayed
, &error_fatal
);
4269 dirty_bitmap_mig_init();
4271 qemu_opts_foreach(qemu_find_opts("mon"),
4272 mon_init_func
, NULL
, &error_fatal
);
4274 /* connect semihosting console input if requested */
4275 qemu_semihosting_console_init();
4277 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4279 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4281 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4284 /* If no default VGA is requested, the default is "none". */
4286 vga_model
= get_default_vga_model(machine_class
);
4289 select_vgahw(machine_class
, vga_model
);
4293 i
= select_watchdog(watchdog
);
4295 exit (i
== 1 ? 1 : 0);
4298 /* This checkpoint is required by replay to separate prior clock
4299 reading from the other reads, because timer polling functions query
4300 clock values from the log. */
4301 replay_checkpoint(CHECKPOINT_INIT
);
4302 qdev_machine_init();
4304 current_machine
->boot_order
= boot_order
;
4306 /* parse features once if machine provides default cpu_type */
4307 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
4309 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
4312 if (current_machine
->ram_memdev_id
) {
4314 ram_addr_t backend_size
;
4316 backend
= object_resolve_path_type(current_machine
->ram_memdev_id
,
4317 TYPE_MEMORY_BACKEND
, NULL
);
4319 error_report("Memory backend '%s' not found",
4320 current_machine
->ram_memdev_id
);
4323 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
4324 if (have_custom_ram_size
&& backend_size
!= ram_size
) {
4325 error_report("Size specified by -m option must match size of "
4326 "explicitly specified 'memory-backend' property");
4330 error_report("'-mem-path' can't be used together with"
4331 "'-machine memory-backend'");
4334 ram_size
= backend_size
;
4337 if (!xen_enabled()) {
4338 /* On 32-bit hosts, QEMU is limited by virtual address space */
4339 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
4340 error_report("at most 2047 MB RAM can be simulated");
4345 parse_numa_opts(current_machine
);
4347 /* do monitor/qmp handling at preconfig state if requested */
4350 if (machine_class
->default_ram_id
&& current_machine
->ram_size
&&
4351 numa_uses_legacy_mem() && !current_machine
->ram_memdev_id
) {
4352 create_default_memdev(current_machine
, mem_path
);
4355 /* from here on runstate is RUN_STATE_PRELAUNCH */
4356 machine_run_board_init(current_machine
);
4359 * TODO To drop support for deprecated bogus if=..., move
4360 * drive_check_orphaned() here, replacing this call. Also drop
4361 * its deprecation warning, along with DriveInfo member
4362 * @claimed_by_board.
4364 drive_mark_claimed_by_board();
4370 if (hax_enabled()) {
4374 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4375 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
4377 /* init USB devices */
4378 if (machine_usb(current_machine
)) {
4379 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4383 /* init generic devices */
4384 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
4385 qemu_opts_foreach(qemu_find_opts("device"),
4386 device_init_func
, NULL
, &error_fatal
);
4388 cpu_synchronize_all_post_init();
4390 rom_reset_order_override();
4392 /* Did we create any drives that we failed to create a device for? */
4393 drive_check_orphaned();
4395 /* Don't warn about the default network setup that you get if
4396 * no command line -net or -netdev options are specified. There
4397 * are two cases that we would otherwise complain about:
4398 * (1) board doesn't support a NIC but the implicit "-net nic"
4400 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4401 * sets up a nic that isn't connected to anything.
4403 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
4404 net_check_clients();
4408 qemu_boot_set(boot_once
, &error_fatal
);
4409 qemu_register_reset(restore_boot_order
, g_strdup(boot_order
));
4412 /* init local displays */
4413 ds
= init_displaystate();
4414 qemu_display_init(ds
, &dpy
);
4416 /* must be after terminal init, SDL library changes signal handlers */
4417 os_setup_signal_handling();
4419 /* init remote displays */
4421 qemu_opts_foreach(qemu_find_opts("vnc"),
4422 vnc_init_func
, NULL
, &error_fatal
);
4426 qemu_spice_display_init();
4429 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
4433 qdev_machine_creation_done();
4435 /* TODO: once all bus devices are qdevified, this should be done
4436 * when bus is created by qdev.c */
4438 * TODO: If we had a main 'reset container' that the whole system
4439 * lived in, we could reset that using the multi-phase reset
4440 * APIs. For the moment, we just reset the sysbus, which will cause
4441 * all devices hanging off it (and all their child buses, recursively)
4442 * to be reset. Note that this will *not* reset any Device objects
4443 * which are not attached to some part of the qbus tree!
4445 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
4446 qemu_run_machine_init_done_notifiers();
4448 if (rom_check_and_register_reset() != 0) {
4449 error_report("rom check and register reset failed");
4455 /* This checkpoint is required by replay to separate prior clock
4456 reading from the other reads, because timer polling functions query
4457 clock values from the log. */
4458 replay_checkpoint(CHECKPOINT_RESET
);
4459 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
4460 register_global_state();
4462 Error
*local_err
= NULL
;
4463 if (load_snapshot(loadvm
, &local_err
) < 0) {
4464 error_report_err(local_err
);
4469 if (replay_mode
!= REPLAY_MODE_NONE
) {
4470 replay_vmstate_init();
4473 qdev_prop_check_globals();
4474 if (vmstate_dump_file
) {
4476 dump_vmstate_json_to_file(vmstate_dump_file
);
4481 Error
*local_err
= NULL
;
4482 qemu_start_incoming_migration(incoming
, &local_err
);
4484 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
4487 } else if (autostart
) {
4491 accel_setup_post(current_machine
);
4497 void qemu_cleanup(void)
4499 gdbserver_cleanup();
4502 * cleaning up the migration object cancels any existing migration
4503 * try to do this early so that it also stops using devices.
4505 migration_shutdown();
4508 * We must cancel all block jobs while the block layer is drained,
4509 * or cancelling will be affected by throttling and thus may block
4510 * for an extended period of time.
4511 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4512 * it in the drained section.
4513 * We do not need to end this section, because we do not want any
4514 * requests happening from here on anyway.
4516 bdrv_drain_all_begin();
4518 /* No more vcpu or device emulation activity beyond this point */
4522 job_cancel_sync_all();
4527 /* vhost-user must be cleaned up before chardevs. */
4533 user_creatable_cleanup();
4534 /* TODO: unref root container, check all devices are ok */