4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
39 #include "qemu/error-report.h"
40 #include "qemu/sockets.h"
41 #include "sysemu/accel.h"
43 #include "hw/isa/isa.h"
44 #include "hw/scsi/scsi.h"
45 #include "hw/display/vga.h"
46 #include "sysemu/watchdog.h"
47 #include "hw/firmware/smbios.h"
48 #include "hw/acpi/acpi.h"
49 #include "hw/xen/xen.h"
50 #include "hw/loader.h"
51 #include "monitor/qdev.h"
53 #include "net/slirp.h"
54 #include "monitor/monitor.h"
55 #include "ui/console.h"
57 #include "sysemu/sysemu.h"
58 #include "sysemu/numa.h"
59 #include "sysemu/hostmem.h"
60 #include "exec/gdbstub.h"
61 #include "qemu/timer.h"
62 #include "chardev/char.h"
63 #include "qemu/bitmap.h"
65 #include "sysemu/blockdev.h"
66 #include "hw/block/block.h"
67 #include "migration/misc.h"
68 #include "migration/snapshot.h"
69 #include "migration/global_state.h"
70 #include "sysemu/tpm.h"
71 #include "sysemu/dma.h"
72 #include "hw/audio/soundhw.h"
73 #include "audio/audio.h"
74 #include "sysemu/cpus.h"
75 #include "migration/colo.h"
76 #include "migration/postcopy-ram.h"
77 #include "sysemu/kvm.h"
78 #include "sysemu/hax.h"
79 #include "qapi/qobject-input-visitor.h"
80 #include "qemu/option.h"
81 #include "qemu/config-file.h"
82 #include "qemu-options.h"
83 #include "qemu/main-loop.h"
85 #include "fsdev/qemu-fsdev.h"
87 #include "sysemu/qtest.h"
89 #include "disas/disas.h"
91 #include "trace-root.h"
92 #include "trace/control.h"
93 #include "qemu/plugin.h"
94 #include "qemu/queue.h"
95 #include "sysemu/arch_init.h"
97 #include "ui/qemu-spice.h"
98 #include "qapi/string-input-visitor.h"
99 #include "qapi/opts-visitor.h"
100 #include "qapi/clone-visitor.h"
101 #include "qom/object_interfaces.h"
102 #include "hw/semihosting/semihost.h"
103 #include "crypto/init.h"
104 #include "sysemu/replay.h"
105 #include "qapi/qapi-events-run-state.h"
106 #include "qapi/qapi-visit-block-core.h"
107 #include "qapi/qapi-visit-ui.h"
108 #include "qapi/qapi-commands-block-core.h"
109 #include "qapi/qapi-commands-run-state.h"
110 #include "qapi/qapi-commands-ui.h"
111 #include "qapi/qmp/qerror.h"
112 #include "sysemu/iothread.h"
113 #include "qemu/guest-random.h"
115 #define MAX_VIRTIO_CONSOLES 1
117 static const char *data_dir
[16];
118 static int data_dir_idx
;
119 const char *bios_name
= NULL
;
120 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
122 const char* keyboard_layout
= NULL
;
124 bool enable_mlock
= false;
125 bool enable_cpu_pm
= false;
127 NICInfo nd_table
[MAX_NICS
];
133 } rtc_base_type
= RTC_BASE_UTC
;
134 static time_t rtc_ref_start_datetime
;
135 static int rtc_realtime_clock_offset
; /* used only with QEMU_CLOCK_REALTIME */
136 static int rtc_host_datetime_offset
= -1; /* valid & used only with
138 QEMUClockType rtc_clock
;
139 int vga_interface_type
= VGA_NONE
;
140 static DisplayOptions dpy
;
141 static int num_serial_hds
;
142 static Chardev
**serial_hds
;
143 Chardev
*parallel_hds
[MAX_PARALLEL_PORTS
];
144 int win2k_install_hack
= 0;
146 int acpi_enabled
= 1;
149 static int no_reboot
;
151 int graphic_rotate
= 0;
152 const char *watchdog
;
153 QEMUOptionRom option_rom
[MAX_OPTION_ROMS
];
156 const char *qemu_name
;
159 unsigned int nb_prom_envs
= 0;
160 const char *prom_envs
[MAX_PROM_ENVS
];
163 uint8_t *boot_splash_filedata
;
164 int only_migratable
; /* turn it off unless user states otherwise */
165 bool wakeup_suspend_enabled
;
167 int icount_align_option
;
169 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
170 * little-endian "wire format" described in the SMBIOS 2.6 specification.
175 static NotifierList exit_notifiers
=
176 NOTIFIER_LIST_INITIALIZER(exit_notifiers
);
178 static NotifierList machine_init_done_notifiers
=
179 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
,
392 { /* end of list */ }
396 static QemuOptsList qemu_name_opts
= {
398 .implied_opt_name
= "guest",
400 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
404 .type
= QEMU_OPT_STRING
,
405 .help
= "Sets the name of the guest.\n"
406 "This name will be displayed in the SDL window caption.\n"
407 "The name will also be used for the VNC server",
410 .type
= QEMU_OPT_STRING
,
411 .help
= "Sets the name of the QEMU process, as shown in top etc",
413 .name
= "debug-threads",
414 .type
= QEMU_OPT_BOOL
,
415 .help
= "When enabled, name the individual threads; defaults off.\n"
416 "NOTE: The thread names are for debugging and not a\n"
419 { /* End of list */ }
423 static QemuOptsList qemu_mem_opts
= {
425 .implied_opt_name
= "size",
426 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
431 .type
= QEMU_OPT_SIZE
,
435 .type
= QEMU_OPT_NUMBER
,
439 .type
= QEMU_OPT_SIZE
,
441 { /* end of list */ }
445 static QemuOptsList qemu_icount_opts
= {
447 .implied_opt_name
= "shift",
449 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
453 .type
= QEMU_OPT_STRING
,
456 .type
= QEMU_OPT_BOOL
,
459 .type
= QEMU_OPT_BOOL
,
462 .type
= QEMU_OPT_STRING
,
465 .type
= QEMU_OPT_STRING
,
467 .name
= "rrsnapshot",
468 .type
= QEMU_OPT_STRING
,
470 { /* end of list */ }
474 static QemuOptsList qemu_fw_cfg_opts
= {
476 .implied_opt_name
= "name",
477 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
481 .type
= QEMU_OPT_STRING
,
482 .help
= "Sets the fw_cfg name of the blob to be inserted",
485 .type
= QEMU_OPT_STRING
,
486 .help
= "Sets the name of the file from which "
487 "the fw_cfg blob will be loaded",
490 .type
= QEMU_OPT_STRING
,
491 .help
= "Sets content of the blob to be inserted from a string",
493 { /* end of list */ }
498 * Get machine options
500 * Returns: machine options (never null).
502 QemuOpts
*qemu_get_machine_opts(void)
504 return qemu_find_opts_singleton("machine");
507 const char *qemu_get_vm_name(void)
512 static void res_free(void)
514 g_free(boot_splash_filedata
);
515 boot_splash_filedata
= NULL
;
518 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
520 const char *driver
= qemu_opt_get(opts
, "driver");
525 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
526 if (strcmp(default_list
[i
].driver
, driver
) != 0)
528 *(default_list
[i
].flag
) = 0;
533 /***********************************************************/
536 static RunState current_run_state
= RUN_STATE_PRECONFIG
;
538 /* We use RUN_STATE__MAX but any invalid value will do */
539 static RunState vmstop_requested
= RUN_STATE__MAX
;
540 static QemuMutex vmstop_lock
;
545 } RunStateTransition
;
547 static const RunStateTransition runstate_transitions_def
[] = {
549 { RUN_STATE_PRECONFIG
, RUN_STATE_PRELAUNCH
},
550 /* Early switch to inmigrate state to allow -incoming CLI option work
551 * as it used to. TODO: delay actual switching to inmigrate state to
552 * the point after machine is built and remove this hack.
554 { RUN_STATE_PRECONFIG
, RUN_STATE_INMIGRATE
},
556 { RUN_STATE_DEBUG
, RUN_STATE_RUNNING
},
557 { RUN_STATE_DEBUG
, RUN_STATE_FINISH_MIGRATE
},
558 { RUN_STATE_DEBUG
, RUN_STATE_PRELAUNCH
},
560 { RUN_STATE_INMIGRATE
, RUN_STATE_INTERNAL_ERROR
},
561 { RUN_STATE_INMIGRATE
, RUN_STATE_IO_ERROR
},
562 { RUN_STATE_INMIGRATE
, RUN_STATE_PAUSED
},
563 { RUN_STATE_INMIGRATE
, RUN_STATE_RUNNING
},
564 { RUN_STATE_INMIGRATE
, RUN_STATE_SHUTDOWN
},
565 { RUN_STATE_INMIGRATE
, RUN_STATE_SUSPENDED
},
566 { RUN_STATE_INMIGRATE
, RUN_STATE_WATCHDOG
},
567 { RUN_STATE_INMIGRATE
, RUN_STATE_GUEST_PANICKED
},
568 { RUN_STATE_INMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
569 { RUN_STATE_INMIGRATE
, RUN_STATE_PRELAUNCH
},
570 { RUN_STATE_INMIGRATE
, RUN_STATE_POSTMIGRATE
},
571 { RUN_STATE_INMIGRATE
, RUN_STATE_COLO
},
573 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PAUSED
},
574 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_FINISH_MIGRATE
},
575 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PRELAUNCH
},
577 { RUN_STATE_IO_ERROR
, RUN_STATE_RUNNING
},
578 { RUN_STATE_IO_ERROR
, RUN_STATE_FINISH_MIGRATE
},
579 { RUN_STATE_IO_ERROR
, RUN_STATE_PRELAUNCH
},
581 { RUN_STATE_PAUSED
, RUN_STATE_RUNNING
},
582 { RUN_STATE_PAUSED
, RUN_STATE_FINISH_MIGRATE
},
583 { RUN_STATE_PAUSED
, RUN_STATE_POSTMIGRATE
},
584 { RUN_STATE_PAUSED
, RUN_STATE_PRELAUNCH
},
585 { RUN_STATE_PAUSED
, RUN_STATE_COLO
},
587 { RUN_STATE_POSTMIGRATE
, RUN_STATE_RUNNING
},
588 { RUN_STATE_POSTMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
589 { RUN_STATE_POSTMIGRATE
, RUN_STATE_PRELAUNCH
},
591 { RUN_STATE_PRELAUNCH
, RUN_STATE_RUNNING
},
592 { RUN_STATE_PRELAUNCH
, RUN_STATE_FINISH_MIGRATE
},
593 { RUN_STATE_PRELAUNCH
, RUN_STATE_INMIGRATE
},
595 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_RUNNING
},
596 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PAUSED
},
597 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_POSTMIGRATE
},
598 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PRELAUNCH
},
599 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_COLO
},
601 { RUN_STATE_RESTORE_VM
, RUN_STATE_RUNNING
},
602 { RUN_STATE_RESTORE_VM
, RUN_STATE_PRELAUNCH
},
604 { RUN_STATE_COLO
, RUN_STATE_RUNNING
},
606 { RUN_STATE_RUNNING
, RUN_STATE_DEBUG
},
607 { RUN_STATE_RUNNING
, RUN_STATE_INTERNAL_ERROR
},
608 { RUN_STATE_RUNNING
, RUN_STATE_IO_ERROR
},
609 { RUN_STATE_RUNNING
, RUN_STATE_PAUSED
},
610 { RUN_STATE_RUNNING
, RUN_STATE_FINISH_MIGRATE
},
611 { RUN_STATE_RUNNING
, RUN_STATE_RESTORE_VM
},
612 { RUN_STATE_RUNNING
, RUN_STATE_SAVE_VM
},
613 { RUN_STATE_RUNNING
, RUN_STATE_SHUTDOWN
},
614 { RUN_STATE_RUNNING
, RUN_STATE_WATCHDOG
},
615 { RUN_STATE_RUNNING
, RUN_STATE_GUEST_PANICKED
},
616 { RUN_STATE_RUNNING
, RUN_STATE_COLO
},
618 { RUN_STATE_SAVE_VM
, RUN_STATE_RUNNING
},
620 { RUN_STATE_SHUTDOWN
, RUN_STATE_PAUSED
},
621 { RUN_STATE_SHUTDOWN
, RUN_STATE_FINISH_MIGRATE
},
622 { RUN_STATE_SHUTDOWN
, RUN_STATE_PRELAUNCH
},
624 { RUN_STATE_DEBUG
, RUN_STATE_SUSPENDED
},
625 { RUN_STATE_RUNNING
, RUN_STATE_SUSPENDED
},
626 { RUN_STATE_SUSPENDED
, RUN_STATE_RUNNING
},
627 { RUN_STATE_SUSPENDED
, RUN_STATE_FINISH_MIGRATE
},
628 { RUN_STATE_SUSPENDED
, RUN_STATE_PRELAUNCH
},
629 { RUN_STATE_SUSPENDED
, RUN_STATE_COLO
},
631 { RUN_STATE_WATCHDOG
, RUN_STATE_RUNNING
},
632 { RUN_STATE_WATCHDOG
, RUN_STATE_FINISH_MIGRATE
},
633 { RUN_STATE_WATCHDOG
, RUN_STATE_PRELAUNCH
},
634 { RUN_STATE_WATCHDOG
, RUN_STATE_COLO
},
636 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_RUNNING
},
637 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_FINISH_MIGRATE
},
638 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_PRELAUNCH
},
640 { RUN_STATE__MAX
, RUN_STATE__MAX
},
643 static bool runstate_valid_transitions
[RUN_STATE__MAX
][RUN_STATE__MAX
];
645 bool runstate_check(RunState state
)
647 return current_run_state
== state
;
650 bool runstate_store(char *str
, size_t size
)
652 const char *state
= RunState_str(current_run_state
);
653 size_t len
= strlen(state
) + 1;
658 memcpy(str
, state
, len
);
662 static void runstate_init(void)
664 const RunStateTransition
*p
;
666 memset(&runstate_valid_transitions
, 0, sizeof(runstate_valid_transitions
));
667 for (p
= &runstate_transitions_def
[0]; p
->from
!= RUN_STATE__MAX
; p
++) {
668 runstate_valid_transitions
[p
->from
][p
->to
] = true;
671 qemu_mutex_init(&vmstop_lock
);
674 /* This function will abort() on invalid state transitions */
675 void runstate_set(RunState new_state
)
677 assert(new_state
< RUN_STATE__MAX
);
679 trace_runstate_set(current_run_state
, RunState_str(current_run_state
),
680 new_state
, RunState_str(new_state
));
682 if (current_run_state
== new_state
) {
686 if (!runstate_valid_transitions
[current_run_state
][new_state
]) {
687 error_report("invalid runstate transition: '%s' -> '%s'",
688 RunState_str(current_run_state
),
689 RunState_str(new_state
));
693 current_run_state
= new_state
;
696 int runstate_is_running(void)
698 return runstate_check(RUN_STATE_RUNNING
);
701 bool runstate_needs_reset(void)
703 return runstate_check(RUN_STATE_INTERNAL_ERROR
) ||
704 runstate_check(RUN_STATE_SHUTDOWN
);
707 StatusInfo
*qmp_query_status(Error
**errp
)
709 StatusInfo
*info
= g_malloc0(sizeof(*info
));
711 info
->running
= runstate_is_running();
712 info
->singlestep
= singlestep
;
713 info
->status
= current_run_state
;
718 bool qemu_vmstop_requested(RunState
*r
)
720 qemu_mutex_lock(&vmstop_lock
);
721 *r
= vmstop_requested
;
722 vmstop_requested
= RUN_STATE__MAX
;
723 qemu_mutex_unlock(&vmstop_lock
);
724 return *r
< RUN_STATE__MAX
;
727 void qemu_system_vmstop_request_prepare(void)
729 qemu_mutex_lock(&vmstop_lock
);
732 void qemu_system_vmstop_request(RunState state
)
734 vmstop_requested
= state
;
735 qemu_mutex_unlock(&vmstop_lock
);
739 /***********************************************************/
740 /* RTC reference time/date access */
741 static time_t qemu_ref_timedate(QEMUClockType clock
)
743 time_t value
= qemu_clock_get_ms(clock
) / 1000;
745 case QEMU_CLOCK_REALTIME
:
746 value
-= rtc_realtime_clock_offset
;
748 case QEMU_CLOCK_VIRTUAL
:
749 value
+= rtc_ref_start_datetime
;
751 case QEMU_CLOCK_HOST
:
752 if (rtc_base_type
== RTC_BASE_DATETIME
) {
753 value
-= rtc_host_datetime_offset
;
762 void qemu_get_timedate(struct tm
*tm
, int offset
)
764 time_t ti
= qemu_ref_timedate(rtc_clock
);
768 switch (rtc_base_type
) {
769 case RTC_BASE_DATETIME
:
773 case RTC_BASE_LOCALTIME
:
774 localtime_r(&ti
, tm
);
779 int qemu_timedate_diff(struct tm
*tm
)
783 switch (rtc_base_type
) {
784 case RTC_BASE_DATETIME
:
786 seconds
= mktimegm(tm
);
788 case RTC_BASE_LOCALTIME
:
791 tmp
.tm_isdst
= -1; /* use timezone to figure it out */
792 seconds
= mktime(&tmp
);
799 return seconds
- qemu_ref_timedate(QEMU_CLOCK_HOST
);
802 static void configure_rtc_base_datetime(const char *startdate
)
804 time_t rtc_start_datetime
;
807 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d", &tm
.tm_year
, &tm
.tm_mon
,
808 &tm
.tm_mday
, &tm
.tm_hour
, &tm
.tm_min
, &tm
.tm_sec
) == 6) {
810 } else if (sscanf(startdate
, "%d-%d-%d",
811 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
) == 3) {
820 rtc_start_datetime
= mktimegm(&tm
);
821 if (rtc_start_datetime
== -1) {
823 error_report("invalid datetime format");
824 error_printf("valid formats: "
825 "'2006-06-17T16:01:21' or '2006-06-17'\n");
828 rtc_host_datetime_offset
= rtc_ref_start_datetime
- rtc_start_datetime
;
829 rtc_ref_start_datetime
= rtc_start_datetime
;
832 static void configure_rtc(QemuOpts
*opts
)
837 rtc_clock
= QEMU_CLOCK_HOST
;
838 rtc_ref_start_datetime
= qemu_clock_get_ms(QEMU_CLOCK_HOST
) / 1000;
839 rtc_realtime_clock_offset
= qemu_clock_get_ms(QEMU_CLOCK_REALTIME
) / 1000;
841 value
= qemu_opt_get(opts
, "base");
843 if (!strcmp(value
, "utc")) {
844 rtc_base_type
= RTC_BASE_UTC
;
845 } else if (!strcmp(value
, "localtime")) {
846 Error
*blocker
= NULL
;
847 rtc_base_type
= RTC_BASE_LOCALTIME
;
848 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
849 "-rtc base=localtime");
850 replay_add_blocker(blocker
);
852 rtc_base_type
= RTC_BASE_DATETIME
;
853 configure_rtc_base_datetime(value
);
856 value
= qemu_opt_get(opts
, "clock");
858 if (!strcmp(value
, "host")) {
859 rtc_clock
= QEMU_CLOCK_HOST
;
860 } else if (!strcmp(value
, "rt")) {
861 rtc_clock
= QEMU_CLOCK_REALTIME
;
862 } else if (!strcmp(value
, "vm")) {
863 rtc_clock
= QEMU_CLOCK_VIRTUAL
;
865 error_report("invalid option value '%s'", value
);
869 value
= qemu_opt_get(opts
, "driftfix");
871 if (!strcmp(value
, "slew")) {
872 object_register_sugar_prop("mc146818rtc",
875 } else if (!strcmp(value
, "none")) {
876 /* discard is default */
878 error_report("invalid option value '%s'", value
);
884 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
886 const char *proc_name
;
888 if (qemu_opt_get(opts
, "debug-threads")) {
889 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
891 qemu_name
= qemu_opt_get(opts
, "guest");
893 proc_name
= qemu_opt_get(opts
, "process");
895 os_set_proc_name(proc_name
);
901 bool defaults_enabled(void)
907 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
909 int fd
, dupfd
, flags
;
911 const char *fd_opaque
= NULL
;
914 fd
= qemu_opt_get_number(opts
, "fd", -1);
915 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
916 fd_opaque
= qemu_opt_get(opts
, "opaque");
919 error_setg(errp
, "fd option is required and must be non-negative");
923 if (fd
<= STDERR_FILENO
) {
924 error_setg(errp
, "fd cannot be a standard I/O stream");
929 * All fds inherited across exec() necessarily have FD_CLOEXEC
930 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
932 flags
= fcntl(fd
, F_GETFD
);
933 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
934 error_setg(errp
, "fd is not valid or already in use");
939 error_setg(errp
, "set option is required and must be non-negative");
943 #ifdef F_DUPFD_CLOEXEC
944 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
948 qemu_set_cloexec(dupfd
);
952 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
956 /* add the duplicate fd, and optionally the opaque string, to the fd set */
957 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, !!fd_opaque
, fd_opaque
,
964 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
968 fd
= qemu_opt_get_number(opts
, "fd", -1);
975 /***********************************************************/
976 /* QEMU Block devices */
978 #define HD_OPTS "media=disk"
979 #define CDROM_OPTS "media=cdrom"
981 #define PFLASH_OPTS ""
985 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
987 BlockInterfaceType
*block_default_type
= opaque
;
989 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
992 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
994 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
995 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
1000 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
1001 int index
, const char *optstr
)
1006 if (!enable
|| drive_get_by_index(type
, index
)) {
1010 opts
= drive_add(type
, index
, NULL
, optstr
);
1012 drive_enable_snapshot(NULL
, opts
, NULL
);
1015 dinfo
= drive_new(opts
, type
, &error_abort
);
1016 dinfo
->is_default
= true;
1020 typedef struct BlockdevOptionsQueueEntry
{
1021 BlockdevOptions
*bdo
;
1023 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
1024 } BlockdevOptionsQueueEntry
;
1026 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
1028 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
1029 MachineClass
*machine_class
, int snapshot
)
1032 * If the currently selected machine wishes to override the
1033 * units-per-bus property of its default HBA interface type, do so
1036 if (machine_class
->units_per_default_bus
) {
1037 override_max_devs(machine_class
->block_default_type
,
1038 machine_class
->units_per_default_bus
);
1041 /* open the virtual block devices */
1042 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
1043 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
1045 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
1046 loc_push_restore(&bdo
->loc
);
1047 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
1049 qapi_free_BlockdevOptions(bdo
->bdo
);
1053 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
1056 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
1057 &machine_class
->block_default_type
, &error_fatal
)) {
1058 /* We printed help */
1062 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
1064 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
1065 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
1069 static QemuOptsList qemu_smp_opts
= {
1071 .implied_opt_name
= "cpus",
1072 .merge_lists
= true,
1073 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
1077 .type
= QEMU_OPT_NUMBER
,
1080 .type
= QEMU_OPT_NUMBER
,
1083 .type
= QEMU_OPT_NUMBER
,
1086 .type
= QEMU_OPT_NUMBER
,
1089 .type
= QEMU_OPT_NUMBER
,
1092 .type
= QEMU_OPT_NUMBER
,
1094 { /*End of list */ }
1098 static void realtime_init(void)
1101 if (os_mlock() < 0) {
1102 error_report("locking memory failed");
1109 static void configure_msg(QemuOpts
*opts
)
1111 error_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
1115 /***********************************************************/
1118 static int usb_device_add(const char *devname
)
1120 USBDevice
*dev
= NULL
;
1122 if (!machine_usb(current_machine
)) {
1126 dev
= usbdevice_create(devname
);
1133 static int usb_parse(const char *cmdline
)
1136 r
= usb_device_add(cmdline
);
1138 error_report("could not add USB device '%s'", cmdline
);
1143 /***********************************************************/
1144 /* machine registration */
1146 MachineState
*current_machine
;
1148 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
1152 for (el
= machines
; el
; el
= el
->next
) {
1153 MachineClass
*mc
= el
->data
;
1155 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
1163 static MachineClass
*find_default_machine(GSList
*machines
)
1167 for (el
= machines
; el
; el
= el
->next
) {
1168 MachineClass
*mc
= el
->data
;
1170 if (mc
->is_default
) {
1178 static int machine_help_func(QemuOpts
*opts
, MachineState
*machine
)
1180 ObjectProperty
*prop
;
1181 ObjectPropertyIterator iter
;
1183 if (!qemu_opt_has_help_opt(opts
)) {
1187 object_property_iter_init(&iter
, OBJECT(machine
));
1188 while ((prop
= object_property_iter_next(&iter
))) {
1193 printf("%s.%s=%s", MACHINE_GET_CLASS(machine
)->name
,
1194 prop
->name
, prop
->type
);
1195 if (prop
->description
) {
1196 printf(" (%s)\n", prop
->description
);
1205 struct VMChangeStateEntry
{
1206 VMChangeStateHandler
*cb
;
1208 QTAILQ_ENTRY(VMChangeStateEntry
) entries
;
1212 static QTAILQ_HEAD(, VMChangeStateEntry
) vm_change_state_head
;
1215 * qemu_add_vm_change_state_handler_prio:
1216 * @cb: the callback to invoke
1217 * @opaque: user data passed to the callback
1218 * @priority: low priorities execute first when the vm runs and the reverse is
1219 * true when the vm stops
1221 * Register a callback function that is invoked when the vm starts or stops
1224 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1226 VMChangeStateEntry
*qemu_add_vm_change_state_handler_prio(
1227 VMChangeStateHandler
*cb
, void *opaque
, int priority
)
1229 VMChangeStateEntry
*e
;
1230 VMChangeStateEntry
*other
;
1232 e
= g_malloc0(sizeof(*e
));
1235 e
->priority
= priority
;
1237 /* Keep list sorted in ascending priority order */
1238 QTAILQ_FOREACH(other
, &vm_change_state_head
, entries
) {
1239 if (priority
< other
->priority
) {
1240 QTAILQ_INSERT_BEFORE(other
, e
, entries
);
1245 QTAILQ_INSERT_TAIL(&vm_change_state_head
, e
, entries
);
1249 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
1252 return qemu_add_vm_change_state_handler_prio(cb
, opaque
, 0);
1255 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
1257 QTAILQ_REMOVE(&vm_change_state_head
, e
, entries
);
1261 void vm_state_notify(int running
, RunState state
)
1263 VMChangeStateEntry
*e
, *next
;
1265 trace_vm_state_notify(running
, state
, RunState_str(state
));
1268 QTAILQ_FOREACH_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1269 e
->cb(e
->opaque
, running
, state
);
1272 QTAILQ_FOREACH_REVERSE_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1273 e
->cb(e
->opaque
, running
, state
);
1278 static ShutdownCause reset_requested
;
1279 static ShutdownCause shutdown_requested
;
1280 static int shutdown_signal
;
1281 static pid_t shutdown_pid
;
1282 static int powerdown_requested
;
1283 static int debug_requested
;
1284 static int suspend_requested
;
1285 static bool preconfig_exit_requested
= true;
1286 static WakeupReason wakeup_reason
;
1287 static NotifierList powerdown_notifiers
=
1288 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers
);
1289 static NotifierList suspend_notifiers
=
1290 NOTIFIER_LIST_INITIALIZER(suspend_notifiers
);
1291 static NotifierList wakeup_notifiers
=
1292 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers
);
1293 static NotifierList shutdown_notifiers
=
1294 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers
);
1295 static uint32_t wakeup_reason_mask
= ~(1 << QEMU_WAKEUP_REASON_NONE
);
1297 ShutdownCause
qemu_shutdown_requested_get(void)
1299 return shutdown_requested
;
1302 ShutdownCause
qemu_reset_requested_get(void)
1304 return reset_requested
;
1307 static int qemu_shutdown_requested(void)
1309 return atomic_xchg(&shutdown_requested
, SHUTDOWN_CAUSE_NONE
);
1312 static void qemu_kill_report(void)
1314 if (!qtest_driver() && shutdown_signal
) {
1315 if (shutdown_pid
== 0) {
1316 /* This happens for eg ^C at the terminal, so it's worth
1317 * avoiding printing an odd message in that case.
1319 error_report("terminating on signal %d", shutdown_signal
);
1321 char *shutdown_cmd
= qemu_get_pid_name(shutdown_pid
);
1323 error_report("terminating on signal %d from pid " FMT_pid
" (%s)",
1324 shutdown_signal
, shutdown_pid
,
1325 shutdown_cmd
? shutdown_cmd
: "<unknown process>");
1326 g_free(shutdown_cmd
);
1328 shutdown_signal
= 0;
1332 static ShutdownCause
qemu_reset_requested(void)
1334 ShutdownCause r
= reset_requested
;
1336 if (r
&& replay_checkpoint(CHECKPOINT_RESET_REQUESTED
)) {
1337 reset_requested
= SHUTDOWN_CAUSE_NONE
;
1340 return SHUTDOWN_CAUSE_NONE
;
1343 static int qemu_suspend_requested(void)
1345 int r
= suspend_requested
;
1346 if (r
&& replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED
)) {
1347 suspend_requested
= 0;
1353 static WakeupReason
qemu_wakeup_requested(void)
1355 return wakeup_reason
;
1358 static int qemu_powerdown_requested(void)
1360 int r
= powerdown_requested
;
1361 powerdown_requested
= 0;
1365 static int qemu_debug_requested(void)
1367 int r
= debug_requested
;
1368 debug_requested
= 0;
1372 void qemu_exit_preconfig_request(void)
1374 preconfig_exit_requested
= true;
1378 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1380 void qemu_system_reset(ShutdownCause reason
)
1384 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1386 cpu_synchronize_all_states();
1388 if (mc
&& mc
->reset
) {
1389 mc
->reset(current_machine
);
1391 qemu_devices_reset();
1393 if (reason
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1394 qapi_event_send_reset(shutdown_caused_by_guest(reason
), reason
);
1396 cpu_synchronize_all_post_reset();
1400 * Wake the VM after suspend.
1402 static void qemu_system_wakeup(void)
1406 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1408 if (mc
&& mc
->wakeup
) {
1409 mc
->wakeup(current_machine
);
1413 void qemu_system_guest_panicked(GuestPanicInformation
*info
)
1415 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crashed");
1418 current_cpu
->crash_occurred
= true;
1420 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE
,
1422 vm_stop(RUN_STATE_GUEST_PANICKED
);
1424 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF
,
1426 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC
);
1430 if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_HYPER_V
) {
1431 qemu_log_mask(LOG_GUEST_ERROR
, "\nHV crash parameters: (%#"PRIx64
1432 " %#"PRIx64
" %#"PRIx64
" %#"PRIx64
" %#"PRIx64
")\n",
1433 info
->u
.hyper_v
.arg1
,
1434 info
->u
.hyper_v
.arg2
,
1435 info
->u
.hyper_v
.arg3
,
1436 info
->u
.hyper_v
.arg4
,
1437 info
->u
.hyper_v
.arg5
);
1438 } else if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_S390
) {
1439 qemu_log_mask(LOG_GUEST_ERROR
, " on cpu %d: %s\n"
1440 "PSW: 0x%016" PRIx64
" 0x%016" PRIx64
"\n",
1442 S390CrashReason_str(info
->u
.s390
.reason
),
1443 info
->u
.s390
.psw_mask
,
1444 info
->u
.s390
.psw_addr
);
1446 qapi_free_GuestPanicInformation(info
);
1450 void qemu_system_guest_crashloaded(GuestPanicInformation
*info
)
1452 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crash loaded");
1454 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN
,
1458 qapi_free_GuestPanicInformation(info
);
1462 void qemu_system_reset_request(ShutdownCause reason
)
1464 if (no_reboot
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1465 shutdown_requested
= reason
;
1467 reset_requested
= reason
;
1470 qemu_notify_event();
1473 static void qemu_system_suspend(void)
1476 notifier_list_notify(&suspend_notifiers
, NULL
);
1477 runstate_set(RUN_STATE_SUSPENDED
);
1478 qapi_event_send_suspend();
1481 void qemu_system_suspend_request(void)
1483 if (runstate_check(RUN_STATE_SUSPENDED
)) {
1486 suspend_requested
= 1;
1488 qemu_notify_event();
1491 void qemu_register_suspend_notifier(Notifier
*notifier
)
1493 notifier_list_add(&suspend_notifiers
, notifier
);
1496 void qemu_system_wakeup_request(WakeupReason reason
, Error
**errp
)
1498 trace_system_wakeup_request(reason
);
1500 if (!runstate_check(RUN_STATE_SUSPENDED
)) {
1502 "Unable to wake up: guest is not in suspended state");
1505 if (!(wakeup_reason_mask
& (1 << reason
))) {
1508 runstate_set(RUN_STATE_RUNNING
);
1509 wakeup_reason
= reason
;
1510 qemu_notify_event();
1513 void qemu_system_wakeup_enable(WakeupReason reason
, bool enabled
)
1516 wakeup_reason_mask
|= (1 << reason
);
1518 wakeup_reason_mask
&= ~(1 << reason
);
1522 void qemu_register_wakeup_notifier(Notifier
*notifier
)
1524 notifier_list_add(&wakeup_notifiers
, notifier
);
1527 void qemu_register_wakeup_support(void)
1529 wakeup_suspend_enabled
= true;
1532 bool qemu_wakeup_suspend_enabled(void)
1534 return wakeup_suspend_enabled
;
1537 void qemu_system_killed(int signal
, pid_t pid
)
1539 shutdown_signal
= signal
;
1543 /* Cannot call qemu_system_shutdown_request directly because
1544 * we are in a signal handler.
1546 shutdown_requested
= SHUTDOWN_CAUSE_HOST_SIGNAL
;
1547 qemu_notify_event();
1550 void qemu_system_shutdown_request(ShutdownCause reason
)
1552 trace_qemu_system_shutdown_request(reason
);
1553 replay_shutdown_request(reason
);
1554 shutdown_requested
= reason
;
1555 qemu_notify_event();
1558 static void qemu_system_powerdown(void)
1560 qapi_event_send_powerdown();
1561 notifier_list_notify(&powerdown_notifiers
, NULL
);
1564 static void qemu_system_shutdown(ShutdownCause cause
)
1566 qapi_event_send_shutdown(shutdown_caused_by_guest(cause
), cause
);
1567 notifier_list_notify(&shutdown_notifiers
, &cause
);
1570 void qemu_system_powerdown_request(void)
1572 trace_qemu_system_powerdown_request();
1573 powerdown_requested
= 1;
1574 qemu_notify_event();
1577 void qemu_register_powerdown_notifier(Notifier
*notifier
)
1579 notifier_list_add(&powerdown_notifiers
, notifier
);
1582 void qemu_register_shutdown_notifier(Notifier
*notifier
)
1584 notifier_list_add(&shutdown_notifiers
, notifier
);
1587 void qemu_system_debug_request(void)
1589 debug_requested
= 1;
1590 qemu_notify_event();
1593 static bool main_loop_should_exit(void)
1596 ShutdownCause request
;
1598 if (preconfig_exit_requested
) {
1599 if (runstate_check(RUN_STATE_PRECONFIG
)) {
1600 runstate_set(RUN_STATE_PRELAUNCH
);
1602 preconfig_exit_requested
= false;
1605 if (qemu_debug_requested()) {
1606 vm_stop(RUN_STATE_DEBUG
);
1608 if (qemu_suspend_requested()) {
1609 qemu_system_suspend();
1611 request
= qemu_shutdown_requested();
1614 qemu_system_shutdown(request
);
1616 vm_stop(RUN_STATE_SHUTDOWN
);
1621 request
= qemu_reset_requested();
1624 qemu_system_reset(request
);
1627 * runstate can change in pause_all_vcpus()
1628 * as iothread mutex is unlocked
1630 if (!runstate_check(RUN_STATE_RUNNING
) &&
1631 !runstate_check(RUN_STATE_INMIGRATE
) &&
1632 !runstate_check(RUN_STATE_FINISH_MIGRATE
)) {
1633 runstate_set(RUN_STATE_PRELAUNCH
);
1636 if (qemu_wakeup_requested()) {
1638 qemu_system_wakeup();
1639 notifier_list_notify(&wakeup_notifiers
, &wakeup_reason
);
1640 wakeup_reason
= QEMU_WAKEUP_REASON_NONE
;
1642 qapi_event_send_wakeup();
1644 if (qemu_powerdown_requested()) {
1645 qemu_system_powerdown();
1647 if (qemu_vmstop_requested(&r
)) {
1653 void qemu_main_loop(void)
1655 #ifdef CONFIG_PROFILER
1658 while (!main_loop_should_exit()) {
1659 #ifdef CONFIG_PROFILER
1660 ti
= profile_getclock();
1662 main_loop_wait(false);
1663 #ifdef CONFIG_PROFILER
1664 dev_time
+= profile_getclock() - ti
;
1669 static void version(void)
1671 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
1672 QEMU_COPYRIGHT
"\n");
1675 static void help(int exitcode
)
1678 printf("usage: %s [options] [disk_image]\n\n"
1679 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1680 error_get_progname());
1682 #define QEMU_OPTIONS_GENERATE_HELP
1683 #include "qemu-options-wrapper.h"
1685 printf("\nDuring emulation, the following keys are useful:\n"
1686 "ctrl-alt-f toggle full screen\n"
1687 "ctrl-alt-n switch to virtual console 'n'\n"
1688 "ctrl-alt toggle mouse and keyboard grab\n"
1690 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1692 QEMU_HELP_BOTTOM
"\n");
1697 #define HAS_ARG 0x0001
1699 typedef struct QEMUOption
{
1706 static const QEMUOption qemu_options
[] = {
1707 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
1708 #define QEMU_OPTIONS_GENERATE_OPTIONS
1709 #include "qemu-options-wrapper.h"
1713 typedef struct VGAInterfaceInfo
{
1714 const char *opt_name
; /* option name */
1715 const char *name
; /* human-readable name */
1716 /* Class names indicating that support is available.
1717 * If no class is specified, the interface is always available */
1718 const char *class_names
[2];
1721 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
1724 .name
= "no graphic card",
1728 .name
= "standard VGA",
1729 .class_names
= { "VGA", "isa-vga" },
1732 .opt_name
= "cirrus",
1733 .name
= "Cirrus VGA",
1734 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
1737 .opt_name
= "vmware",
1738 .name
= "VMWare SVGA",
1739 .class_names
= { "vmware-svga" },
1742 .opt_name
= "virtio",
1743 .name
= "Virtio VGA",
1744 .class_names
= { "virtio-vga" },
1749 .class_names
= { "qxl-vga" },
1753 .name
= "TCX framebuffer",
1754 .class_names
= { "SUNW,tcx" },
1758 .name
= "CG3 framebuffer",
1759 .class_names
= { "cgthree" },
1762 .opt_name
= "xenfb",
1763 .name
= "Xen paravirtualized framebuffer",
1767 static bool vga_interface_available(VGAInterfaceType t
)
1769 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1771 assert(t
< VGA_TYPE_MAX
);
1772 return !ti
->class_names
[0] ||
1773 object_class_by_name(ti
->class_names
[0]) ||
1774 object_class_by_name(ti
->class_names
[1]);
1778 get_default_vga_model(const MachineClass
*machine_class
)
1780 if (machine_class
->default_display
) {
1781 return machine_class
->default_display
;
1782 } else if (vga_interface_available(VGA_CIRRUS
)) {
1784 } else if (vga_interface_available(VGA_STD
)) {
1791 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1796 if (g_str_equal(p
, "help")) {
1797 const char *def
= get_default_vga_model(machine_class
);
1799 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1800 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1802 if (vga_interface_available(t
) && ti
->opt_name
) {
1803 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1804 g_str_equal(ti
->opt_name
, def
) ? " (default)" : "");
1810 assert(vga_interface_type
== VGA_NONE
);
1811 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1812 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1813 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1814 if (!vga_interface_available(t
)) {
1815 error_report("%s not available", ti
->name
);
1818 vga_interface_type
= t
;
1822 if (t
== VGA_TYPE_MAX
) {
1824 error_report("unknown vga type: %s", p
);
1828 const char *nextopt
;
1830 if (strstart(opts
, ",retrace=", &nextopt
)) {
1832 if (strstart(opts
, "dumb", &nextopt
))
1833 vga_retrace_method
= VGA_RETRACE_DUMB
;
1834 else if (strstart(opts
, "precise", &nextopt
))
1835 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1836 else goto invalid_vga
;
1837 } else goto invalid_vga
;
1842 static void parse_display_qapi(const char *optarg
)
1844 DisplayOptions
*opts
;
1847 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1849 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1850 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1852 qapi_free_DisplayOptions(opts
);
1856 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1858 return QAPI_CLONE(DisplayOptions
, &dpy
);
1861 static void parse_display(const char *p
)
1865 if (is_help_option(p
)) {
1866 qemu_display_help();
1870 if (strstart(p
, "sdl", &opts
)) {
1872 * sdl DisplayType needs hand-crafted parser instead of
1873 * parse_display_qapi() due to some options not in
1874 * DisplayOptions, specifically:
1876 * Already deprecated.
1877 * - ctrl_grab + alt_grab
1878 * Not clear yet what happens to them long-term. Should
1879 * replaced by something better or deprecated and dropped.
1881 dpy
.type
= DISPLAY_TYPE_SDL
;
1883 const char *nextopt
;
1885 if (strstart(opts
, ",alt_grab=", &nextopt
)) {
1887 if (strstart(opts
, "on", &nextopt
)) {
1889 } else if (strstart(opts
, "off", &nextopt
)) {
1892 goto invalid_sdl_args
;
1894 } else if (strstart(opts
, ",ctrl_grab=", &nextopt
)) {
1896 if (strstart(opts
, "on", &nextopt
)) {
1898 } else if (strstart(opts
, "off", &nextopt
)) {
1901 goto invalid_sdl_args
;
1903 } else if (strstart(opts
, ",window_close=", &nextopt
)) {
1905 dpy
.has_window_close
= true;
1906 if (strstart(opts
, "on", &nextopt
)) {
1907 dpy
.window_close
= true;
1908 } else if (strstart(opts
, "off", &nextopt
)) {
1909 dpy
.window_close
= false;
1911 goto invalid_sdl_args
;
1913 } else if (strstart(opts
, ",show-cursor=", &nextopt
)) {
1915 dpy
.has_show_cursor
= true;
1916 if (strstart(opts
, "on", &nextopt
)) {
1917 dpy
.show_cursor
= true;
1918 } else if (strstart(opts
, "off", &nextopt
)) {
1919 dpy
.show_cursor
= false;
1921 goto invalid_sdl_args
;
1923 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1926 if (strstart(opts
, "on", &nextopt
)) {
1927 dpy
.gl
= DISPLAYGL_MODE_ON
;
1928 } else if (strstart(opts
, "core", &nextopt
)) {
1929 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1930 } else if (strstart(opts
, "es", &nextopt
)) {
1931 dpy
.gl
= DISPLAYGL_MODE_ES
;
1932 } else if (strstart(opts
, "off", &nextopt
)) {
1933 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1935 goto invalid_sdl_args
;
1939 error_report("invalid SDL option string");
1944 } else if (strstart(p
, "vnc", &opts
)) {
1946 * vnc isn't a (local) DisplayType but a protocol for remote
1950 vnc_parse(opts
+ 1, &error_fatal
);
1952 error_report("VNC requires a display argument vnc=<display>");
1956 parse_display_qapi(p
);
1960 char *qemu_find_file(int type
, const char *name
)
1966 /* Try the name as a straight path first */
1967 if (access(name
, R_OK
) == 0) {
1968 trace_load_file(name
, name
);
1969 return g_strdup(name
);
1973 case QEMU_FILE_TYPE_BIOS
:
1976 case QEMU_FILE_TYPE_KEYMAP
:
1977 subdir
= "keymaps/";
1983 for (i
= 0; i
< data_dir_idx
; i
++) {
1984 buf
= g_strdup_printf("%s/%s%s", data_dir
[i
], subdir
, name
);
1985 if (access(buf
, R_OK
) == 0) {
1986 trace_load_file(name
, buf
);
1994 static void qemu_add_data_dir(const char *path
)
2001 if (data_dir_idx
== ARRAY_SIZE(data_dir
)) {
2004 for (i
= 0; i
< data_dir_idx
; i
++) {
2005 if (strcmp(data_dir
[i
], path
) == 0) {
2006 return; /* duplicate */
2009 data_dir
[data_dir_idx
++] = g_strdup(path
);
2012 static inline bool nonempty_str(const char *str
)
2017 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2021 const char *name
, *file
, *str
;
2022 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
2024 if (fw_cfg
== NULL
) {
2025 error_setg(errp
, "fw_cfg device not available");
2028 name
= qemu_opt_get(opts
, "name");
2029 file
= qemu_opt_get(opts
, "file");
2030 str
= qemu_opt_get(opts
, "string");
2032 /* we need name and either a file or the content string */
2033 if (!(nonempty_str(name
) && (nonempty_str(file
) || nonempty_str(str
)))) {
2034 error_setg(errp
, "invalid argument(s)");
2037 if (nonempty_str(file
) && nonempty_str(str
)) {
2038 error_setg(errp
, "file and string are mutually exclusive");
2041 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
2042 error_setg(errp
, "name too long (max. %d char)",
2043 FW_CFG_MAX_FILE_PATH
- 1);
2046 if (strncmp(name
, "opt/", 4) != 0) {
2047 warn_report("externally provided fw_cfg item names "
2048 "should be prefixed with \"opt/\"");
2050 if (nonempty_str(str
)) {
2051 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
2052 buf
= g_memdup(str
, size
);
2055 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
2056 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
2061 /* For legacy, keep user files in a specific global order. */
2062 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
2063 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
2064 fw_cfg_reset_order_override(fw_cfg
);
2068 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2070 return qdev_device_help(opts
);
2073 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2077 dev
= qdev_device_add(opts
, errp
);
2078 if (!dev
&& *errp
) {
2079 error_report_err(*errp
);
2082 object_unref(OBJECT(dev
));
2087 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2089 Error
*local_err
= NULL
;
2091 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
2093 error_propagate(errp
, local_err
);
2101 #ifdef CONFIG_VIRTFS
2102 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2104 return qemu_fsdev_add(opts
, errp
);
2108 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2110 return monitor_init_opts(opts
, errp
);
2113 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
2115 static int monitor_device_index
= 0;
2120 if (strstart(optarg
, "chardev:", &p
)) {
2121 snprintf(label
, sizeof(label
), "%s", p
);
2123 snprintf(label
, sizeof(label
), "compat_monitor%d",
2124 monitor_device_index
);
2125 opts
= qemu_chr_parse_compat(label
, optarg
, true);
2127 error_report("parse error: %s", optarg
);
2132 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
2133 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
2134 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
2135 if (!strcmp(mode
, "control")) {
2136 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
2138 assert(pretty
== false);
2140 monitor_device_index
++;
2143 struct device_config
{
2145 DEV_USB
, /* -usbdevice */
2146 DEV_SERIAL
, /* -serial */
2147 DEV_PARALLEL
, /* -parallel */
2148 DEV_DEBUGCON
, /* -debugcon */
2149 DEV_GDB
, /* -gdb, -s */
2150 DEV_SCLP
, /* s390 sclp */
2152 const char *cmdline
;
2154 QTAILQ_ENTRY(device_config
) next
;
2157 static QTAILQ_HEAD(, device_config
) device_configs
=
2158 QTAILQ_HEAD_INITIALIZER(device_configs
);
2160 static void add_device_config(int type
, const char *cmdline
)
2162 struct device_config
*conf
;
2164 conf
= g_malloc0(sizeof(*conf
));
2166 conf
->cmdline
= cmdline
;
2167 loc_save(&conf
->loc
);
2168 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
2171 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
2173 struct device_config
*conf
;
2176 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
2177 if (conf
->type
!= type
)
2179 loc_push_restore(&conf
->loc
);
2180 rc
= func(conf
->cmdline
);
2181 loc_pop(&conf
->loc
);
2189 static int serial_parse(const char *devname
)
2191 int index
= num_serial_hds
;
2194 if (strcmp(devname
, "none") == 0)
2196 snprintf(label
, sizeof(label
), "serial%d", index
);
2197 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
2199 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2200 if (!serial_hds
[index
]) {
2201 error_report("could not connect serial device"
2202 " to character backend '%s'", devname
);
2209 Chardev
*serial_hd(int i
)
2212 if (i
< num_serial_hds
) {
2213 return serial_hds
[i
];
2218 int serial_max_hds(void)
2220 return num_serial_hds
;
2223 static int parallel_parse(const char *devname
)
2225 static int index
= 0;
2228 if (strcmp(devname
, "none") == 0)
2230 if (index
== MAX_PARALLEL_PORTS
) {
2231 error_report("too many parallel ports");
2234 snprintf(label
, sizeof(label
), "parallel%d", index
);
2235 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2236 if (!parallel_hds
[index
]) {
2237 error_report("could not connect parallel device"
2238 " to character backend '%s'", devname
);
2245 static int debugcon_parse(const char *devname
)
2249 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
2250 error_report("invalid character backend '%s'", devname
);
2253 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
2255 error_report("already have a debugcon device");
2258 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
2259 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
2263 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
2265 const MachineClass
*mc1
= a
, *mc2
= b
;
2268 if (mc1
->family
== NULL
) {
2269 if (mc2
->family
== NULL
) {
2270 /* Compare standalone machine types against each other; they sort
2271 * in increasing order.
2273 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
2274 object_class_get_name(OBJECT_CLASS(mc2
)));
2277 /* Standalone machine types sort after families. */
2281 if (mc2
->family
== NULL
) {
2282 /* Families sort before standalone machine types. */
2286 /* Families sort between each other alphabetically increasingly. */
2287 res
= strcmp(mc1
->family
, mc2
->family
);
2292 /* Within the same family, machine types sort in decreasing order. */
2293 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
2294 object_class_get_name(OBJECT_CLASS(mc1
)));
2297 static MachineClass
*machine_parse(const char *name
, GSList
*machines
)
2302 if (is_help_option(name
)) {
2303 printf("Supported machines are:\n");
2304 machines
= g_slist_sort(machines
, machine_class_cmp
);
2305 for (el
= machines
; el
; el
= el
->next
) {
2306 MachineClass
*mc
= el
->data
;
2308 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
2310 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
2311 mc
->is_default
? " (default)" : "",
2312 mc
->deprecation_reason
? " (deprecated)" : "");
2317 mc
= find_machine(name
, machines
);
2319 error_report("unsupported machine type");
2320 error_printf("Use -machine help to list supported machines\n");
2326 void qemu_add_exit_notifier(Notifier
*notify
)
2328 notifier_list_add(&exit_notifiers
, notify
);
2331 void qemu_remove_exit_notifier(Notifier
*notify
)
2333 notifier_remove(notify
);
2336 static void qemu_run_exit_notifiers(void)
2338 notifier_list_notify(&exit_notifiers
, NULL
);
2341 static const char *pid_file
;
2342 static Notifier qemu_unlink_pidfile_notifier
;
2344 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
2351 bool machine_init_done
;
2353 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
2355 notifier_list_add(&machine_init_done_notifiers
, notify
);
2356 if (machine_init_done
) {
2357 notify
->notify(notify
, NULL
);
2361 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
2363 notifier_remove(notify
);
2366 static void qemu_run_machine_init_done_notifiers(void)
2368 machine_init_done
= true;
2369 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
2372 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
2373 const char **poptarg
, int *poptind
)
2375 const QEMUOption
*popt
;
2376 int optind
= *poptind
;
2377 char *r
= argv
[optind
];
2380 loc_set_cmdline(argv
, optind
, 1);
2382 /* Treat --foo the same as -foo. */
2385 popt
= qemu_options
;
2388 error_report("invalid option");
2391 if (!strcmp(popt
->name
, r
+ 1))
2395 if (popt
->flags
& HAS_ARG
) {
2396 if (optind
>= argc
) {
2397 error_report("requires an argument");
2400 optarg
= argv
[optind
++];
2401 loc_set_cmdline(argv
, optind
- 2, 2);
2412 static MachineClass
*select_machine(void)
2414 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
2415 MachineClass
*machine_class
= find_default_machine(machines
);
2420 loc_push_none(&loc
);
2422 opts
= qemu_get_machine_opts();
2423 qemu_opts_loc_restore(opts
);
2425 optarg
= qemu_opt_get(opts
, "type");
2427 machine_class
= machine_parse(optarg
, machines
);
2430 if (!machine_class
) {
2431 error_report("No machine specified, and there is no default");
2432 error_printf("Use -machine help to list supported machines\n");
2437 g_slist_free(machines
);
2438 return machine_class
;
2441 static int object_parse_property_opt(Object
*obj
,
2442 const char *name
, const char *value
,
2443 const char *skip
, Error
**errp
)
2445 Error
*local_err
= NULL
;
2447 if (g_str_equal(name
, skip
)) {
2451 object_property_parse(obj
, value
, name
, &local_err
);
2454 error_propagate(errp
, local_err
);
2461 static int machine_set_property(void *opaque
,
2462 const char *name
, const char *value
,
2465 g_autofree
char *qom_name
= g_strdup(name
);
2468 for (p
= qom_name
; *p
; p
++) {
2474 /* Legacy options do not correspond to MachineState properties. */
2475 if (g_str_equal(qom_name
, "accel")) {
2478 if (g_str_equal(qom_name
, "igd-passthru")) {
2479 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name
, value
);
2482 if (g_str_equal(qom_name
, "kvm-shadow-mem") ||
2483 g_str_equal(qom_name
, "kernel-irqchip")) {
2484 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name
, value
);
2488 return object_parse_property_opt(opaque
, name
, value
, "type", errp
);
2492 * Initial object creation happens before all other
2493 * QEMU data types are created. The majority of objects
2494 * can be created at this point. The rng-egd object
2495 * cannot be created here, as it depends on the chardev
2498 static bool object_create_initial(const char *type
, QemuOpts
*opts
)
2500 if (user_creatable_print_help(type
, opts
)) {
2505 * Objects should not be made "delayed" without a reason. If you
2506 * add one, state the reason in a comment!
2509 /* Reason: rng-egd property "chardev" */
2510 if (g_str_equal(type
, "rng-egd")) {
2514 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2515 /* Reason: cryptodev-vhost-user property "chardev" */
2516 if (g_str_equal(type
, "cryptodev-vhost-user")) {
2522 * Reason: filter-* property "netdev" etc.
2524 if (g_str_equal(type
, "filter-buffer") ||
2525 g_str_equal(type
, "filter-dump") ||
2526 g_str_equal(type
, "filter-mirror") ||
2527 g_str_equal(type
, "filter-redirector") ||
2528 g_str_equal(type
, "colo-compare") ||
2529 g_str_equal(type
, "filter-rewriter") ||
2530 g_str_equal(type
, "filter-replay")) {
2534 /* Memory allocation by backends needs to be done
2535 * after configure_accelerator() (due to the tcg_enabled()
2536 * checks at memory_region_init_*()).
2538 * Also, allocation of large amounts of memory may delay
2539 * chardev initialization for too long, and trigger timeouts
2540 * on software that waits for a monitor socket to be created
2543 if (g_str_has_prefix(type
, "memory-backend-")) {
2552 * The remainder of object creation happens after the
2553 * creation of chardev, fsdev, net clients and device data types.
2555 static bool object_create_delayed(const char *type
, QemuOpts
*opts
)
2557 return !object_create_initial(type
, opts
);
2561 static void set_memory_options(uint64_t *ram_slots
, ram_addr_t
*maxram_size
,
2565 const char *mem_str
;
2566 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2567 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2570 loc_push_none(&loc
);
2571 qemu_opts_loc_restore(opts
);
2574 mem_str
= qemu_opt_get(opts
, "size");
2577 error_report("missing 'size' option value");
2581 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2583 /* Fix up legacy suffix-less format */
2584 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2585 uint64_t overflow_check
= sz
;
2588 if (sz
/ MiB
!= overflow_check
) {
2589 error_report("too large 'size' option value");
2595 /* backward compatibility behaviour for case "-m 0" */
2597 sz
= default_ram_size
;
2600 sz
= QEMU_ALIGN_UP(sz
, 8192);
2602 if (ram_size
!= sz
) {
2603 error_report("ram size too large");
2607 /* store value for the future use */
2608 qemu_opt_set_number(opts
, "size", ram_size
, &error_abort
);
2609 *maxram_size
= ram_size
;
2611 if (qemu_opt_get(opts
, "maxmem")) {
2614 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2615 slots
= qemu_opt_get_number(opts
, "slots", 0);
2616 if (sz
< ram_size
) {
2617 error_report("invalid value of -m option maxmem: "
2618 "maximum memory size (0x%" PRIx64
") must be at least "
2619 "the initial memory size (0x" RAM_ADDR_FMT
")",
2622 } else if (slots
&& sz
== ram_size
) {
2623 error_report("invalid value of -m option maxmem: "
2624 "memory slots were specified but maximum memory size "
2625 "(0x%" PRIx64
") is equal to the initial memory size "
2626 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2632 } else if (qemu_opt_get(opts
, "slots")) {
2633 error_report("invalid -m option value: missing 'maxmem' option");
2637 if (current_machine
->ram_memdev_id
) {
2639 ram_addr_t backend_size
;
2641 backend
= object_resolve_path_type(current_machine
->ram_memdev_id
,
2642 TYPE_MEMORY_BACKEND
, NULL
);
2643 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
2644 if (mem_str
&& backend_size
!= ram_size
) {
2645 error_report("Size specified by -m option must match size of "
2646 "explicitly specified 'memory-backend' property");
2649 ram_size
= backend_size
;
2652 if (!xen_enabled()) {
2653 /* On 32-bit hosts, QEMU is limited by virtual address space */
2654 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
2655 error_report("at most 2047 MB RAM can be simulated");
2663 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2667 g
= g_malloc0(sizeof(*g
));
2668 g
->driver
= qemu_opt_get(opts
, "driver");
2669 g
->property
= qemu_opt_get(opts
, "property");
2670 g
->value
= qemu_opt_get(opts
, "value");
2671 qdev_prop_register_global(g
);
2675 static int qemu_read_default_config_file(void)
2679 ret
= qemu_read_config_file(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2680 if (ret
< 0 && ret
!= -ENOENT
) {
2687 static void user_register_global_props(void)
2689 qemu_opts_foreach(qemu_find_opts("global"),
2690 global_init_func
, NULL
, NULL
);
2693 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2695 configure_icount(opts
, errp
);
2699 static int accelerator_set_property(void *opaque
,
2700 const char *name
, const char *value
,
2703 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2706 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2708 bool *p_init_failed
= opaque
;
2709 const char *acc
= qemu_opt_get(opts
, "accel");
2710 AccelClass
*ac
= accel_find(acc
);
2715 *p_init_failed
= true;
2716 error_report("invalid accelerator %s", acc
);
2719 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2720 object_apply_compat_props(OBJECT(accel
));
2721 qemu_opt_foreach(opts
, accelerator_set_property
,
2725 ret
= accel_init_machine(accel
, current_machine
);
2727 *p_init_failed
= true;
2728 error_report("failed to initialize %s: %s",
2729 acc
, strerror(-ret
));
2736 static void configure_accelerators(const char *progname
)
2739 bool init_failed
= false;
2741 qemu_opts_foreach(qemu_find_opts("icount"),
2742 do_configure_icount
, NULL
, &error_fatal
);
2744 accel
= qemu_opt_get(qemu_get_machine_opts(), "accel");
2745 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2746 char **accel_list
, **tmp
;
2748 if (accel
== NULL
) {
2749 /* Select the default accelerator */
2750 bool have_tcg
= accel_find("tcg");
2751 bool have_kvm
= accel_find("kvm");
2753 if (have_tcg
&& have_kvm
) {
2754 if (g_str_has_suffix(progname
, "kvm")) {
2755 /* If the program name ends with "kvm", we prefer KVM */
2760 } else if (have_kvm
) {
2762 } else if (have_tcg
) {
2765 error_report("No accelerator selected and"
2766 " no default accelerator available");
2770 accel_list
= g_strsplit(accel
, ":", 0);
2772 for (tmp
= accel_list
; *tmp
; tmp
++) {
2774 * Filter invalid accelerators here, to prevent obscenities
2775 * such as "-machine accel=tcg,,thread=single".
2777 if (accel_find(*tmp
)) {
2778 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2781 error_report("invalid accelerator %s", *tmp
);
2784 g_strfreev(accel_list
);
2786 if (accel
!= NULL
) {
2787 error_report("The -accel and \"-machine accel=\" options are incompatible");
2792 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2793 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2795 error_report("no accelerator found");
2801 AccelClass
*ac
= ACCEL_GET_CLASS(current_accel());
2802 error_report("falling back to %s", ac
->name
);
2805 if (use_icount
&& !(tcg_enabled() || qtest_enabled())) {
2806 error_report("-icount is not allowed with hardware virtualization");
2811 static void create_default_memdev(MachineState
*ms
, const char *path
)
2814 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
2816 obj
= object_new(path
? TYPE_MEMORY_BACKEND_FILE
: TYPE_MEMORY_BACKEND_RAM
);
2818 object_property_set_str(obj
, path
, "mem-path", &error_fatal
);
2820 object_property_set_int(obj
, ms
->ram_size
, "size", &error_fatal
);
2821 object_property_add_child(object_get_objects_root(), mc
->default_ram_id
,
2823 user_creatable_complete(USER_CREATABLE(obj
), &error_fatal
);
2825 object_property_set_str(OBJECT(ms
), mc
->default_ram_id
, "memory-backend",
2829 void qemu_init(int argc
, char **argv
, char **envp
)
2832 int snapshot
, linux_boot
;
2833 const char *initrd_filename
;
2834 const char *kernel_filename
, *kernel_cmdline
;
2835 const char *boot_order
= NULL
;
2836 const char *boot_once
= NULL
;
2838 QemuOpts
*opts
, *machine_opts
;
2839 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2840 QemuOptsList
*olist
;
2843 const char *loadvm
= NULL
;
2844 MachineClass
*machine_class
;
2845 const char *cpu_option
;
2846 const char *vga_model
= NULL
;
2847 const char *qtest_chrdev
= NULL
;
2848 const char *qtest_log
= NULL
;
2849 const char *incoming
= NULL
;
2850 bool userconfig
= true;
2851 bool nographic
= false;
2852 int display_remote
= 0;
2853 const char *log_mask
= NULL
;
2854 const char *log_file
= NULL
;
2855 char *trace_file
= NULL
;
2856 ram_addr_t maxram_size
;
2857 uint64_t ram_slots
= 0;
2858 FILE *vmstate_dump_file
= NULL
;
2859 Error
*main_loop_err
= NULL
;
2861 bool list_data_dirs
= false;
2863 const char *mem_path
= NULL
;
2864 BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
2865 QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
2866 int mem_prealloc
= 0; /* force preallocation of physical target memory */
2868 os_set_line_buffering();
2870 error_init(argv
[0]);
2871 module_call_init(MODULE_INIT_TRACE
);
2873 qemu_init_cpu_list();
2874 qemu_init_cpu_loop();
2876 qemu_mutex_lock_iothread();
2878 atexit(qemu_run_exit_notifiers
);
2879 qemu_init_exec_dir(argv
[0]);
2881 module_call_init(MODULE_INIT_QOM
);
2883 qemu_add_opts(&qemu_drive_opts
);
2884 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2885 qemu_add_drive_opts(&qemu_common_drive_opts
);
2886 qemu_add_drive_opts(&qemu_drive_opts
);
2887 qemu_add_drive_opts(&bdrv_runtime_opts
);
2888 qemu_add_opts(&qemu_chardev_opts
);
2889 qemu_add_opts(&qemu_device_opts
);
2890 qemu_add_opts(&qemu_netdev_opts
);
2891 qemu_add_opts(&qemu_nic_opts
);
2892 qemu_add_opts(&qemu_net_opts
);
2893 qemu_add_opts(&qemu_rtc_opts
);
2894 qemu_add_opts(&qemu_global_opts
);
2895 qemu_add_opts(&qemu_mon_opts
);
2896 qemu_add_opts(&qemu_trace_opts
);
2897 qemu_plugin_add_opts();
2898 qemu_add_opts(&qemu_option_rom_opts
);
2899 qemu_add_opts(&qemu_machine_opts
);
2900 qemu_add_opts(&qemu_accel_opts
);
2901 qemu_add_opts(&qemu_mem_opts
);
2902 qemu_add_opts(&qemu_smp_opts
);
2903 qemu_add_opts(&qemu_boot_opts
);
2904 qemu_add_opts(&qemu_add_fd_opts
);
2905 qemu_add_opts(&qemu_object_opts
);
2906 qemu_add_opts(&qemu_tpmdev_opts
);
2907 qemu_add_opts(&qemu_realtime_opts
);
2908 qemu_add_opts(&qemu_overcommit_opts
);
2909 qemu_add_opts(&qemu_msg_opts
);
2910 qemu_add_opts(&qemu_name_opts
);
2911 qemu_add_opts(&qemu_numa_opts
);
2912 qemu_add_opts(&qemu_icount_opts
);
2913 qemu_add_opts(&qemu_semihosting_config_opts
);
2914 qemu_add_opts(&qemu_fw_cfg_opts
);
2915 module_call_init(MODULE_INIT_OPTS
);
2918 precopy_infrastructure_init();
2919 postcopy_infrastructure_init();
2920 monitor_init_globals();
2922 if (qcrypto_init(&err
) < 0) {
2923 error_reportf_err(err
, "cannot initialize crypto: ");
2927 QTAILQ_INIT(&vm_change_state_head
);
2928 os_setup_early_signal_handling();
2935 bdrv_init_with_whitelist();
2939 /* first pass of option parsing */
2941 while (optind
< argc
) {
2942 if (argv
[optind
][0] != '-') {
2946 const QEMUOption
*popt
;
2948 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2949 switch (popt
->index
) {
2950 case QEMU_OPTION_nouserconfig
:
2958 if (qemu_read_default_config_file() < 0) {
2963 /* second pass of option parsing */
2968 if (argv
[optind
][0] != '-') {
2969 loc_set_cmdline(argv
, optind
, 1);
2970 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2972 const QEMUOption
*popt
;
2974 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2975 if (!(popt
->arch_mask
& arch_type
)) {
2976 error_report("Option not supported for this target");
2979 switch(popt
->index
) {
2980 case QEMU_OPTION_cpu
:
2981 /* hw initialization will check this */
2982 cpu_option
= optarg
;
2984 case QEMU_OPTION_hda
:
2985 case QEMU_OPTION_hdb
:
2986 case QEMU_OPTION_hdc
:
2987 case QEMU_OPTION_hdd
:
2988 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2991 case QEMU_OPTION_blockdev
:
2994 BlockdevOptionsQueueEntry
*bdo
;
2996 v
= qobject_input_visitor_new_str(optarg
, "driver",
2999 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
3000 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
3003 loc_save(&bdo
->loc
);
3004 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
3007 case QEMU_OPTION_drive
:
3008 if (drive_def(optarg
) == NULL
) {
3012 case QEMU_OPTION_set
:
3013 if (qemu_set_option(optarg
) != 0)
3016 case QEMU_OPTION_global
:
3017 if (qemu_global_option(optarg
) != 0)
3020 case QEMU_OPTION_mtdblock
:
3021 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
3023 case QEMU_OPTION_sd
:
3024 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
3026 case QEMU_OPTION_pflash
:
3027 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
3029 case QEMU_OPTION_snapshot
:
3031 Error
*blocker
= NULL
;
3033 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
3035 replay_add_blocker(blocker
);
3038 case QEMU_OPTION_numa
:
3039 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
3045 case QEMU_OPTION_display
:
3046 parse_display(optarg
);
3048 case QEMU_OPTION_nographic
:
3049 olist
= qemu_find_opts("machine");
3050 qemu_opts_parse_noisily(olist
, "graphics=off", false);
3052 dpy
.type
= DISPLAY_TYPE_NONE
;
3054 case QEMU_OPTION_curses
:
3055 #ifdef CONFIG_CURSES
3056 dpy
.type
= DISPLAY_TYPE_CURSES
;
3058 error_report("curses or iconv support is disabled");
3062 case QEMU_OPTION_portrait
:
3063 graphic_rotate
= 90;
3065 case QEMU_OPTION_rotate
:
3066 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
3067 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
3068 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
3069 error_report("only 90, 180, 270 deg rotation is available");
3073 case QEMU_OPTION_kernel
:
3074 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg
,
3077 case QEMU_OPTION_initrd
:
3078 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg
,
3081 case QEMU_OPTION_append
:
3082 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg
,
3085 case QEMU_OPTION_dtb
:
3086 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg
,
3089 case QEMU_OPTION_cdrom
:
3090 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
3092 case QEMU_OPTION_boot
:
3093 opts
= qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3099 case QEMU_OPTION_fda
:
3100 case QEMU_OPTION_fdb
:
3101 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
3104 case QEMU_OPTION_no_fd_bootchk
:
3107 case QEMU_OPTION_netdev
:
3109 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
3113 case QEMU_OPTION_nic
:
3115 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
3119 case QEMU_OPTION_net
:
3121 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
3125 #ifdef CONFIG_LIBISCSI
3126 case QEMU_OPTION_iscsi
:
3127 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3134 case QEMU_OPTION_audio_help
:
3135 audio_legacy_help();
3138 case QEMU_OPTION_audiodev
:
3139 audio_parse_option(optarg
);
3141 case QEMU_OPTION_soundhw
:
3142 select_soundhw (optarg
);
3147 case QEMU_OPTION_version
:
3152 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3159 case QEMU_OPTION_tpmdev
:
3160 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3165 case QEMU_OPTION_mempath
:
3168 case QEMU_OPTION_mem_prealloc
:
3177 case QEMU_OPTION_DFILTER
:
3178 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3180 case QEMU_OPTION_seed
:
3181 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3184 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3186 case QEMU_OPTION_gdb
:
3187 add_device_config(DEV_GDB
, optarg
);
3190 if (is_help_option(optarg
)) {
3191 list_data_dirs
= true;
3193 qemu_add_data_dir(optarg
);
3196 case QEMU_OPTION_bios
:
3197 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg
,
3200 case QEMU_OPTION_singlestep
:
3207 keyboard_layout
= optarg
;
3209 case QEMU_OPTION_vga
:
3218 w
= strtol(p
, (char **)&p
, 10);
3221 error_report("invalid resolution or depth");
3227 h
= strtol(p
, (char **)&p
, 10);
3232 depth
= strtol(p
, (char **)&p
, 10);
3233 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3234 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3235 depth
!= 24 && depth
!= 32)
3237 } else if (*p
== '\0') {
3238 depth
= graphic_depth
;
3245 graphic_depth
= depth
;
3248 case QEMU_OPTION_echr
:
3251 term_escape_char
= strtol(optarg
, &r
, 0);
3253 printf("Bad argument to echr\n");
3256 case QEMU_OPTION_monitor
:
3257 default_monitor
= 0;
3258 if (strncmp(optarg
, "none", 4)) {
3259 monitor_parse(optarg
, "readline", false);
3262 case QEMU_OPTION_qmp
:
3263 monitor_parse(optarg
, "control", false);
3264 default_monitor
= 0;
3266 case QEMU_OPTION_qmp_pretty
:
3267 monitor_parse(optarg
, "control", true);
3268 default_monitor
= 0;
3270 case QEMU_OPTION_mon
:
3271 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3276 default_monitor
= 0;
3278 case QEMU_OPTION_chardev
:
3279 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3285 case QEMU_OPTION_fsdev
:
3286 olist
= qemu_find_opts("fsdev");
3288 error_report("fsdev support is disabled");
3291 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3296 case QEMU_OPTION_virtfs
: {
3299 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3302 olist
= qemu_find_opts("virtfs");
3304 error_report("virtfs support is disabled");
3307 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3312 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3313 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3314 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3317 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3318 qemu_opts_id(opts
) ?:
3319 qemu_opt_get(opts
, "mount_tag"),
3322 error_report("duplicate or invalid fsdev id: %s",
3323 qemu_opt_get(opts
, "mount_tag"));
3327 writeout
= qemu_opt_get(opts
, "writeout");
3329 #ifdef CONFIG_SYNC_FILE_RANGE
3330 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3332 error_report("writeout=immediate not supported "
3333 "on this platform");
3337 qemu_opt_set(fsdev
, "fsdriver",
3338 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3339 path
= qemu_opt_get(opts
, "path");
3341 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3343 security_model
= qemu_opt_get(opts
, "security_model");
3344 if (security_model
) {
3345 qemu_opt_set(fsdev
, "security_model", security_model
,
3348 socket
= qemu_opt_get(opts
, "socket");
3350 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3352 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3354 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3357 qemu_opt_set_bool(fsdev
, "readonly",
3358 qemu_opt_get_bool(opts
, "readonly", 0),
3360 multidevs
= qemu_opt_get(opts
, "multidevs");
3362 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3364 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3366 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3367 qemu_opt_set(device
, "fsdev",
3368 qemu_opts_id(fsdev
), &error_abort
);
3369 qemu_opt_set(device
, "mount_tag",
3370 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3373 case QEMU_OPTION_serial
:
3374 add_device_config(DEV_SERIAL
, optarg
);
3376 if (strncmp(optarg
, "mon:", 4) == 0) {
3377 default_monitor
= 0;
3380 case QEMU_OPTION_watchdog
:
3382 error_report("only one watchdog option may be given");
3387 case QEMU_OPTION_watchdog_action
:
3388 if (select_watchdog_action(optarg
) == -1) {
3389 error_report("unknown -watchdog-action parameter");
3393 case QEMU_OPTION_parallel
:
3394 add_device_config(DEV_PARALLEL
, optarg
);
3395 default_parallel
= 0;
3396 if (strncmp(optarg
, "mon:", 4) == 0) {
3397 default_monitor
= 0;
3400 case QEMU_OPTION_debugcon
:
3401 add_device_config(DEV_DEBUGCON
, optarg
);
3403 case QEMU_OPTION_loadvm
:
3406 case QEMU_OPTION_full_screen
:
3407 dpy
.has_full_screen
= true;
3408 dpy
.full_screen
= true;
3410 case QEMU_OPTION_alt_grab
:
3413 case QEMU_OPTION_ctrl_grab
:
3416 case QEMU_OPTION_no_quit
:
3417 dpy
.has_window_close
= true;
3418 dpy
.window_close
= false;
3420 case QEMU_OPTION_sdl
:
3422 dpy
.type
= DISPLAY_TYPE_SDL
;
3425 error_report("SDL support is disabled");
3428 case QEMU_OPTION_pidfile
:
3431 case QEMU_OPTION_win2k_hack
:
3432 win2k_install_hack
= 1;
3434 case QEMU_OPTION_acpitable
:
3435 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3440 acpi_table_add(opts
, &error_fatal
);
3442 case QEMU_OPTION_smbios
:
3443 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3448 smbios_entry_add(opts
, &error_fatal
);
3450 case QEMU_OPTION_fwcfg
:
3451 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3457 case QEMU_OPTION_preconfig
:
3458 preconfig_exit_requested
= false;
3460 case QEMU_OPTION_enable_kvm
:
3461 olist
= qemu_find_opts("machine");
3462 qemu_opts_parse_noisily(olist
, "accel=kvm", false);
3465 case QEMU_OPTION_machine
:
3466 olist
= qemu_find_opts("machine");
3467 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3472 case QEMU_OPTION_no_kvm
:
3473 olist
= qemu_find_opts("machine");
3474 qemu_opts_parse_noisily(olist
, "accel=tcg", false);
3476 case QEMU_OPTION_accel
:
3477 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3479 optarg
= qemu_opt_get(accel_opts
, "accel");
3480 if (!optarg
|| is_help_option(optarg
)) {
3481 printf("Accelerators supported in QEMU binary:\n");
3482 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3484 for (el
= accel_list
; el
; el
= el
->next
) {
3485 gchar
*typename
= g_strdup(object_class_get_name(
3486 OBJECT_CLASS(el
->data
)));
3487 /* omit qtest which is used for tests only */
3488 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3489 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3490 gchar
**optname
= g_strsplit(typename
,
3491 ACCEL_CLASS_SUFFIX
, 0);
3492 printf("%s\n", optname
[0]);
3493 g_strfreev(optname
);
3497 g_slist_free(accel_list
);
3500 if (optarg
&& strchr(optarg
, ':')) {
3501 error_report("Don't use ':' with -accel, "
3502 "use -M accel=... for now instead");
3506 case QEMU_OPTION_usb
:
3507 olist
= qemu_find_opts("machine");
3508 qemu_opts_parse_noisily(olist
, "usb=on", false);
3510 case QEMU_OPTION_usbdevice
:
3511 error_report("'-usbdevice' is deprecated, please use "
3512 "'-device usb-...' instead");
3513 olist
= qemu_find_opts("machine");
3514 qemu_opts_parse_noisily(olist
, "usb=on", false);
3515 add_device_config(DEV_USB
, optarg
);
3517 case QEMU_OPTION_device
:
3518 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3523 case QEMU_OPTION_smp
:
3524 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3529 case QEMU_OPTION_vnc
:
3530 vnc_parse(optarg
, &error_fatal
);
3532 case QEMU_OPTION_no_acpi
:
3535 case QEMU_OPTION_no_hpet
:
3538 case QEMU_OPTION_no_reboot
:
3541 case QEMU_OPTION_no_shutdown
:
3544 case QEMU_OPTION_show_cursor
:
3545 warn_report("The -show-cursor option is deprecated, "
3546 "use -display {sdl,gtk},show-cursor=on instead");
3547 dpy
.has_show_cursor
= true;
3548 dpy
.show_cursor
= true;
3550 case QEMU_OPTION_uuid
:
3551 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3552 error_report("failed to parse UUID string: wrong format");
3555 qemu_uuid_set
= true;
3557 case QEMU_OPTION_option_rom
:
3558 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3559 error_report("too many option ROMs");
3562 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3567 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3568 option_rom
[nb_option_roms
].bootindex
=
3569 qemu_opt_get_number(opts
, "bootindex", -1);
3570 if (!option_rom
[nb_option_roms
].name
) {
3571 error_report("Option ROM file is not specified");
3576 case QEMU_OPTION_semihosting
:
3577 qemu_semihosting_enable();
3579 case QEMU_OPTION_semihosting_config
:
3580 if (qemu_semihosting_config_options(optarg
) != 0) {
3584 case QEMU_OPTION_name
:
3585 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3591 case QEMU_OPTION_prom_env
:
3592 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3593 error_report("too many prom variables");
3596 prom_envs
[nb_prom_envs
] = optarg
;
3599 case QEMU_OPTION_old_param
:
3602 case QEMU_OPTION_rtc
:
3603 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3609 case QEMU_OPTION_tb_size
:
3611 error_report("TCG is disabled");
3614 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3615 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg
);
3617 case QEMU_OPTION_icount
:
3618 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3624 case QEMU_OPTION_incoming
:
3626 runstate_set(RUN_STATE_INMIGRATE
);
3630 case QEMU_OPTION_only_migratable
:
3631 only_migratable
= 1;
3633 case QEMU_OPTION_nodefaults
:
3636 case QEMU_OPTION_xen_domid
:
3637 if (!(xen_available())) {
3638 error_report("Option not supported for this target");
3641 xen_domid
= atoi(optarg
);
3643 case QEMU_OPTION_xen_attach
:
3644 if (!(xen_available())) {
3645 error_report("Option not supported for this target");
3648 xen_mode
= XEN_ATTACH
;
3650 case QEMU_OPTION_xen_domid_restrict
:
3651 if (!(xen_available())) {
3652 error_report("Option not supported for this target");
3655 xen_domid_restrict
= true;
3657 case QEMU_OPTION_trace
:
3659 trace_file
= trace_opt_parse(optarg
);
3661 case QEMU_OPTION_plugin
:
3662 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3664 case QEMU_OPTION_readconfig
:
3666 int ret
= qemu_read_config_file(optarg
);
3668 error_report("read config %s: %s", optarg
,
3674 case QEMU_OPTION_spice
:
3675 olist
= qemu_find_opts("spice");
3677 error_report("spice support is disabled");
3680 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3686 case QEMU_OPTION_writeconfig
:
3689 if (strcmp(optarg
, "-") == 0) {
3692 fp
= fopen(optarg
, "w");
3694 error_report("open %s: %s", optarg
,
3699 qemu_config_write(fp
);
3705 case QEMU_OPTION_qtest
:
3706 qtest_chrdev
= optarg
;
3708 case QEMU_OPTION_qtest_log
:
3711 case QEMU_OPTION_sandbox
:
3712 olist
= qemu_find_opts("sandbox");
3714 #ifndef CONFIG_SECCOMP
3715 error_report("-sandbox support is not enabled "
3716 "in this QEMU binary");
3721 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3726 case QEMU_OPTION_add_fd
:
3728 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3734 error_report("File descriptor passing is disabled on this "
3739 case QEMU_OPTION_object
:
3740 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
3746 case QEMU_OPTION_realtime
:
3747 warn_report("'-realtime mlock=...' is deprecated, please use "
3748 "'-overcommit mem-lock=...' instead");
3749 opts
= qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3754 /* Don't override the -overcommit option if set */
3755 enable_mlock
= enable_mlock
||
3756 qemu_opt_get_bool(opts
, "mlock", true);
3758 case QEMU_OPTION_overcommit
:
3759 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3764 /* Don't override the -realtime option if set */
3765 enable_mlock
= enable_mlock
||
3766 qemu_opt_get_bool(opts
, "mem-lock", false);
3767 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3769 case QEMU_OPTION_msg
:
3770 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3775 configure_msg(opts
);
3777 case QEMU_OPTION_dump_vmstate
:
3778 if (vmstate_dump_file
) {
3779 error_report("only one '-dump-vmstate' "
3780 "option may be given");
3783 vmstate_dump_file
= fopen(optarg
, "w");
3784 if (vmstate_dump_file
== NULL
) {
3785 error_report("open %s: %s", optarg
, strerror(errno
));
3789 case QEMU_OPTION_enable_sync_profile
:
3792 case QEMU_OPTION_nouserconfig
:
3793 /* Nothing to be parsed here. Especially, do not error out below. */
3796 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3797 error_report("Option not supported in this build");
3804 * Clear error location left behind by the loop.
3805 * Best done right after the loop. Do not insert code here!
3809 user_register_global_props();
3811 replay_configure(icount_opts
);
3813 if (incoming
&& !preconfig_exit_requested
) {
3814 error_report("'preconfig' and 'incoming' options are "
3815 "mutually exclusive");
3819 configure_rtc(qemu_find_opts_singleton("rtc"));
3821 machine_class
= select_machine();
3822 object_set_machine_compat_props(machine_class
->compat_props
);
3827 * If QTest is enabled, keep the rcu_atfork enabled, since system processes
3828 * may be forked testing purposes (e.g. fork-server based fuzzing) The fork
3829 * should happen before a signle cpu instruction is executed, to prevent
3830 * deadlocks. See commit 73c6e40, rcu: "completely disable pthread_atfork
3831 * callbacks as soon as possible"
3833 if (!qtest_enabled()) {
3834 rcu_disable_atfork();
3837 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
3838 error_reportf_err(err
, "cannot create PID file: ");
3842 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
3843 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
3845 if (qemu_init_main_loop(&main_loop_err
)) {
3846 error_report_err(main_loop_err
);
3850 #ifdef CONFIG_SECCOMP
3851 olist
= qemu_find_opts_err("sandbox", NULL
);
3853 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
3857 qemu_opts_foreach(qemu_find_opts("name"),
3858 parse_name
, NULL
, &error_fatal
);
3861 qemu_opts_foreach(qemu_find_opts("add-fd"),
3862 parse_add_fd
, NULL
, &error_fatal
);
3864 qemu_opts_foreach(qemu_find_opts("add-fd"),
3865 cleanup_add_fd
, NULL
, &error_fatal
);
3868 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
3869 if (machine_help_func(qemu_get_machine_opts(), current_machine
)) {
3872 object_property_add_child(object_get_root(), "machine",
3873 OBJECT(current_machine
), &error_abort
);
3874 object_property_add_child(container_get(OBJECT(current_machine
),
3876 "sysbus", OBJECT(sysbus_get_default()),
3879 if (machine_class
->minimum_page_bits
) {
3880 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
3881 /* This would be a board error: specifying a minimum smaller than
3882 * a target's compile-time fixed setting.
3884 g_assert_not_reached();
3888 cpu_exec_init_all();
3890 if (machine_class
->hw_version
) {
3891 qemu_set_hw_version(machine_class
->hw_version
);
3894 if (cpu_option
&& is_help_option(cpu_option
)) {
3895 list_cpus(cpu_option
);
3899 if (!trace_init_backends()) {
3902 trace_init_file(trace_file
);
3904 /* Open the logfile at this point and set the log mask if necessary.
3906 qemu_set_log_filename(log_file
, &error_fatal
);
3909 mask
= qemu_str_to_log_mask(log_mask
);
3911 qemu_print_log_usage(stdout
);
3919 /* add configured firmware directories */
3920 dirs
= g_strsplit(CONFIG_QEMU_FIRMWAREPATH
, G_SEARCHPATH_SEPARATOR_S
, 0);
3921 for (i
= 0; dirs
[i
] != NULL
; i
++) {
3922 qemu_add_data_dir(dirs
[i
]);
3926 /* try to find datadir relative to the executable path */
3927 dir
= os_find_datadir();
3928 qemu_add_data_dir(dir
);
3931 /* add the datadir specified when building */
3932 qemu_add_data_dir(CONFIG_QEMU_DATADIR
);
3934 /* -L help lists the data directories and exits. */
3935 if (list_data_dirs
) {
3936 for (i
= 0; i
< data_dir_idx
; i
++) {
3937 printf("%s\n", data_dir
[i
]);
3942 /* machine_class: default to UP */
3943 machine_class
->max_cpus
= machine_class
->max_cpus
?: 1;
3944 machine_class
->min_cpus
= machine_class
->min_cpus
?: 1;
3945 machine_class
->default_cpus
= machine_class
->default_cpus
?: 1;
3947 /* default to machine_class->default_cpus */
3948 current_machine
->smp
.cpus
= machine_class
->default_cpus
;
3949 current_machine
->smp
.max_cpus
= machine_class
->default_cpus
;
3950 current_machine
->smp
.cores
= 1;
3951 current_machine
->smp
.threads
= 1;
3953 machine_class
->smp_parse(current_machine
,
3954 qemu_opts_find(qemu_find_opts("smp-opts"), NULL
));
3956 /* sanity-check smp_cpus and max_cpus against machine_class */
3957 if (current_machine
->smp
.cpus
< machine_class
->min_cpus
) {
3958 error_report("Invalid SMP CPUs %d. The min CPUs "
3959 "supported by machine '%s' is %d",
3960 current_machine
->smp
.cpus
,
3961 machine_class
->name
, machine_class
->min_cpus
);
3964 if (current_machine
->smp
.max_cpus
> machine_class
->max_cpus
) {
3965 error_report("Invalid SMP CPUs %d. The max CPUs "
3966 "supported by machine '%s' is %d",
3967 current_machine
->smp
.max_cpus
,
3968 machine_class
->name
, machine_class
->max_cpus
);
3975 val
= g_strdup_printf("%d", current_machine
->smp
.cpus
);
3976 object_register_sugar_prop("memory-backend", "prealloc-threads", val
);
3978 object_register_sugar_prop("memory-backend", "prealloc", "on");
3982 * Get the default machine options from the machine if it is not already
3983 * specified either by the configuration file or by the command line.
3985 if (machine_class
->default_machine_opts
) {
3986 qemu_opts_set_defaults(qemu_find_opts("machine"),
3987 machine_class
->default_machine_opts
, 0);
3990 /* process plugin before CPUs are created, but once -smp has been parsed */
3991 if (qemu_plugin_load_list(&plugin_list
)) {
3995 qemu_opts_foreach(qemu_find_opts("device"),
3996 default_driver_check
, NULL
, NULL
);
3997 qemu_opts_foreach(qemu_find_opts("global"),
3998 default_driver_check
, NULL
, NULL
);
4000 if (!vga_model
&& !default_vga
) {
4001 vga_interface_type
= VGA_DEVICE
;
4003 if (!has_defaults
|| machine_class
->no_serial
) {
4006 if (!has_defaults
|| machine_class
->no_parallel
) {
4007 default_parallel
= 0;
4009 if (!has_defaults
|| machine_class
->no_floppy
) {
4012 if (!has_defaults
|| machine_class
->no_cdrom
) {
4015 if (!has_defaults
|| machine_class
->no_sdcard
) {
4018 if (!has_defaults
) {
4019 default_monitor
= 0;
4024 if (is_daemonized()) {
4025 if (!preconfig_exit_requested
) {
4026 error_report("'preconfig' and 'daemonize' options are "
4027 "mutually exclusive");
4031 /* According to documentation and historically, -nographic redirects
4032 * serial port, parallel port and monitor to stdio, which does not work
4033 * with -daemonize. We can redirect these to null instead, but since
4034 * -nographic is legacy, let's just error out.
4035 * We disallow -nographic only if all other ports are not redirected
4036 * explicitly, to not break existing legacy setups which uses
4037 * -nographic _and_ redirects all ports explicitly - this is valid
4038 * usage, -nographic is just a no-op in this case.
4041 && (default_parallel
|| default_serial
|| default_monitor
)) {
4042 error_report("-nographic cannot be used with -daemonize");
4045 #ifdef CONFIG_CURSES
4046 if (dpy
.type
== DISPLAY_TYPE_CURSES
) {
4047 error_report("curses display cannot be used with -daemonize");
4054 if (default_parallel
)
4055 add_device_config(DEV_PARALLEL
, "null");
4056 if (default_serial
&& default_monitor
) {
4057 add_device_config(DEV_SERIAL
, "mon:stdio");
4060 add_device_config(DEV_SERIAL
, "stdio");
4061 if (default_monitor
)
4062 monitor_parse("stdio", "readline", false);
4066 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
4067 if (default_parallel
)
4068 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
4069 if (default_monitor
)
4070 monitor_parse("vc:80Cx24C", "readline", false);
4073 #if defined(CONFIG_VNC)
4074 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
4078 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
4079 if (!qemu_display_find_default(&dpy
)) {
4080 dpy
.type
= DISPLAY_TYPE_NONE
;
4081 #if defined(CONFIG_VNC)
4082 vnc_parse("localhost:0,to=99,id=default", &error_abort
);
4086 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
4087 dpy
.type
= DISPLAY_TYPE_NONE
;
4090 if ((alt_grab
|| ctrl_grab
) && dpy
.type
!= DISPLAY_TYPE_SDL
) {
4091 error_report("-alt-grab and -ctrl-grab are only valid "
4092 "for SDL, ignoring option");
4094 if (dpy
.has_window_close
&&
4095 (dpy
.type
!= DISPLAY_TYPE_GTK
&& dpy
.type
!= DISPLAY_TYPE_SDL
)) {
4096 error_report("-no-quit is only valid for GTK and SDL, "
4100 qemu_display_early_init(&dpy
);
4101 qemu_console_early_init();
4103 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
4104 #if defined(CONFIG_OPENGL)
4105 error_report("OpenGL is not supported by the display");
4107 error_report("OpenGL support is disabled");
4115 qemu_opts_foreach(qemu_find_opts("object"),
4116 user_creatable_add_opts_foreach
,
4117 object_create_initial
, &error_fatal
);
4119 qemu_opts_foreach(qemu_find_opts("chardev"),
4120 chardev_init_func
, NULL
, &error_fatal
);
4121 /* now chardevs have been created we may have semihosting to connect */
4122 qemu_semihosting_connect_chardevs();
4124 #ifdef CONFIG_VIRTFS
4125 qemu_opts_foreach(qemu_find_opts("fsdev"),
4126 fsdev_init_func
, NULL
, &error_fatal
);
4129 if (qemu_opts_foreach(qemu_find_opts("device"),
4130 device_help_func
, NULL
, NULL
)) {
4135 * Note: we need to create block backends before
4136 * machine_set_property(), so machine properties can refer to
4139 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
4141 machine_opts
= qemu_get_machine_opts();
4142 qemu_opt_foreach(machine_opts
, machine_set_property
, current_machine
,
4146 * Note: uses machine properties such as kernel-irqchip, must run
4147 * after machine_set_property().
4149 configure_accelerators(argv
[0]);
4152 * Beware, QOM objects created before this point miss global and
4153 * compat properties.
4155 * Global properties get set up by qdev_prop_register_global(),
4156 * called from user_register_global_props(), and certain option
4157 * desugaring. Also in CPU feature desugaring (buried in
4158 * parse_cpu_option()), which happens below this point, but may
4159 * only target the CPU type, which can only be created after
4160 * parse_cpu_option() returned the type.
4162 * Machine compat properties: object_set_machine_compat_props().
4163 * Accelerator compat props: object_set_accelerator_compat_props(),
4164 * called from configure_accelerator().
4167 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
4168 error_report("Machine type '%s' is deprecated: %s",
4169 machine_class
->name
, machine_class
->deprecation_reason
);
4173 * Note: creates a QOM object, must run only after global and
4174 * compat properties have been set up.
4176 migration_object_init();
4179 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
4182 machine_opts
= qemu_get_machine_opts();
4183 kernel_filename
= qemu_opt_get(machine_opts
, "kernel");
4184 initrd_filename
= qemu_opt_get(machine_opts
, "initrd");
4185 kernel_cmdline
= qemu_opt_get(machine_opts
, "append");
4186 bios_name
= qemu_opt_get(machine_opts
, "firmware");
4188 opts
= qemu_opts_find(qemu_find_opts("boot-opts"), NULL
);
4190 boot_order
= qemu_opt_get(opts
, "order");
4192 validate_bootdevices(boot_order
, &error_fatal
);
4195 boot_once
= qemu_opt_get(opts
, "once");
4197 validate_bootdevices(boot_once
, &error_fatal
);
4200 boot_menu
= qemu_opt_get_bool(opts
, "menu", boot_menu
);
4201 boot_strict
= qemu_opt_get_bool(opts
, "strict", false);
4205 boot_order
= machine_class
->default_boot_order
;
4208 if (!kernel_cmdline
) {
4209 kernel_cmdline
= "";
4210 current_machine
->kernel_cmdline
= (char *)kernel_cmdline
;
4213 linux_boot
= (kernel_filename
!= NULL
);
4215 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4216 error_report("-append only allowed with -kernel option");
4220 if (!linux_boot
&& initrd_filename
!= NULL
) {
4221 error_report("-initrd only allowed with -kernel option");
4225 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename
) {
4226 /* fall back to the -kernel/-append */
4227 semihosting_arg_fallback(kernel_filename
, kernel_cmdline
);
4230 /* spice needs the timers to be initialized by this point */
4236 QemuOptsList
*net
= qemu_find_opts("net");
4237 qemu_opts_set(net
, NULL
, "type", "nic", &error_abort
);
4239 qemu_opts_set(net
, NULL
, "type", "user", &error_abort
);
4243 if (net_init_clients(&err
) < 0) {
4244 error_report_err(err
);
4248 qemu_opts_foreach(qemu_find_opts("object"),
4249 user_creatable_add_opts_foreach
,
4250 object_create_delayed
, &error_fatal
);
4256 dirty_bitmap_mig_init();
4258 qemu_opts_foreach(qemu_find_opts("mon"),
4259 mon_init_func
, NULL
, &error_fatal
);
4261 /* connect semihosting console input if requested */
4262 qemu_semihosting_console_init();
4264 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4266 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4268 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4271 /* If no default VGA is requested, the default is "none". */
4273 vga_model
= get_default_vga_model(machine_class
);
4276 select_vgahw(machine_class
, vga_model
);
4280 i
= select_watchdog(watchdog
);
4282 exit (i
== 1 ? 1 : 0);
4285 /* This checkpoint is required by replay to separate prior clock
4286 reading from the other reads, because timer polling functions query
4287 clock values from the log. */
4288 replay_checkpoint(CHECKPOINT_INIT
);
4289 qdev_machine_init();
4291 current_machine
->boot_order
= boot_order
;
4293 /* parse features once if machine provides default cpu_type */
4294 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
4296 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
4299 set_memory_options(&ram_slots
, &maxram_size
, machine_class
);
4300 current_machine
->ram_size
= ram_size
;
4301 current_machine
->maxram_size
= maxram_size
;
4302 current_machine
->ram_slots
= ram_slots
;
4304 parse_numa_opts(current_machine
);
4306 if (machine_class
->default_ram_id
&& current_machine
->ram_size
&&
4307 numa_uses_legacy_mem() && !current_machine
->ram_memdev_id
) {
4308 create_default_memdev(current_machine
, mem_path
);
4310 /* do monitor/qmp handling at preconfig state if requested */
4313 audio_init_audiodevs();
4315 /* from here on runstate is RUN_STATE_PRELAUNCH */
4316 machine_run_board_init(current_machine
);
4322 if (hax_enabled()) {
4326 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4327 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
4329 /* init USB devices */
4330 if (machine_usb(current_machine
)) {
4331 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4335 /* init generic devices */
4336 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
4337 qemu_opts_foreach(qemu_find_opts("device"),
4338 device_init_func
, NULL
, &error_fatal
);
4340 cpu_synchronize_all_post_init();
4342 rom_reset_order_override();
4344 /* Did we create any drives that we failed to create a device for? */
4345 drive_check_orphaned();
4347 /* Don't warn about the default network setup that you get if
4348 * no command line -net or -netdev options are specified. There
4349 * are two cases that we would otherwise complain about:
4350 * (1) board doesn't support a NIC but the implicit "-net nic"
4352 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4353 * sets up a nic that isn't connected to anything.
4355 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
4356 net_check_clients();
4360 qemu_boot_set(boot_once
, &error_fatal
);
4361 qemu_register_reset(restore_boot_order
, g_strdup(boot_order
));
4364 /* init local displays */
4365 ds
= init_displaystate();
4366 qemu_display_init(ds
, &dpy
);
4368 /* must be after terminal init, SDL library changes signal handlers */
4369 os_setup_signal_handling();
4371 /* init remote displays */
4373 qemu_opts_foreach(qemu_find_opts("vnc"),
4374 vnc_init_func
, NULL
, &error_fatal
);
4378 qemu_spice_display_init();
4381 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
4385 qdev_machine_creation_done();
4387 /* TODO: once all bus devices are qdevified, this should be done
4388 * when bus is created by qdev.c */
4390 * TODO: If we had a main 'reset container' that the whole system
4391 * lived in, we could reset that using the multi-phase reset
4392 * APIs. For the moment, we just reset the sysbus, which will cause
4393 * all devices hanging off it (and all their child buses, recursively)
4394 * to be reset. Note that this will *not* reset any Device objects
4395 * which are not attached to some part of the qbus tree!
4397 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
4398 qemu_run_machine_init_done_notifiers();
4400 if (rom_check_and_register_reset() != 0) {
4401 error_report("rom check and register reset failed");
4407 /* This checkpoint is required by replay to separate prior clock
4408 reading from the other reads, because timer polling functions query
4409 clock values from the log. */
4410 replay_checkpoint(CHECKPOINT_RESET
);
4411 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
4412 register_global_state();
4414 Error
*local_err
= NULL
;
4415 if (load_snapshot(loadvm
, &local_err
) < 0) {
4416 error_report_err(local_err
);
4421 if (replay_mode
!= REPLAY_MODE_NONE
) {
4422 replay_vmstate_init();
4425 qdev_prop_check_globals();
4426 if (vmstate_dump_file
) {
4428 dump_vmstate_json_to_file(vmstate_dump_file
);
4433 Error
*local_err
= NULL
;
4434 qemu_start_incoming_migration(incoming
, &local_err
);
4436 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
4439 } else if (autostart
) {
4443 accel_setup_post(current_machine
);
4449 void qemu_cleanup(void)
4451 gdbserver_cleanup();
4454 * cleaning up the migration object cancels any existing migration
4455 * try to do this early so that it also stops using devices.
4457 migration_shutdown();
4460 * We must cancel all block jobs while the block layer is drained,
4461 * or cancelling will be affected by throttling and thus may block
4462 * for an extended period of time.
4463 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4464 * it in the drained section.
4465 * We do not need to end this section, because we do not want any
4466 * requests happening from here on anyway.
4468 bdrv_drain_all_begin();
4470 /* No more vcpu or device emulation activity beyond this point */
4474 job_cancel_sync_all();
4479 /* vhost-user must be cleaned up before chardevs. */
4485 user_creatable_cleanup();
4486 /* TODO: unref root container, check all devices are ok */