4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
40 #if defined(__APPLE__) || defined(main)
42 int qemu_main(int argc
, char **argv
, char **envp
);
43 int main(int argc
, char **argv
)
45 return qemu_main(argc
, argv
, NULL
);
48 #define main qemu_main
50 #endif /* CONFIG_SDL */
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/firmware/smbios.h"
67 #include "hw/acpi/acpi.h"
68 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
103 #include "fsdev/qemu-fsdev.h"
105 #include "sysemu/qtest.h"
107 #include "disas/disas.h"
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/plugin.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
133 #define MAX_VIRTIO_CONSOLES 1
135 static const char *data_dir
[16];
136 static int data_dir_idx
;
137 const char *bios_name
= NULL
;
138 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
140 const char* keyboard_layout
= NULL
;
142 const char *mem_path
= NULL
;
143 int mem_prealloc
= 0; /* force preallocation of physical target memory */
144 bool enable_mlock
= false;
145 bool enable_cpu_pm
= false;
147 NICInfo nd_table
[MAX_NICS
];
153 } rtc_base_type
= RTC_BASE_UTC
;
154 static time_t rtc_ref_start_datetime
;
155 static int rtc_realtime_clock_offset
; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset
= -1; /* valid & used only with
158 QEMUClockType rtc_clock
;
159 int vga_interface_type
= VGA_NONE
;
160 static DisplayOptions dpy
;
161 static int num_serial_hds
;
162 static Chardev
**serial_hds
;
163 Chardev
*parallel_hds
[MAX_PARALLEL_PORTS
];
164 int win2k_install_hack
= 0;
166 int acpi_enabled
= 1;
169 static int no_reboot
;
172 int graphic_rotate
= 0;
173 const char *watchdog
;
174 QEMUOptionRom option_rom
[MAX_OPTION_ROMS
];
177 const char *qemu_name
;
180 unsigned int nb_prom_envs
= 0;
181 const char *prom_envs
[MAX_PROM_ENVS
];
184 uint8_t *boot_splash_filedata
;
185 int only_migratable
; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled
;
188 int icount_align_option
;
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 static NotifierList exit_notifiers
=
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers
);
199 static NotifierList machine_init_done_notifiers
=
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
204 enum xen_mode xen_mode
= XEN_EMULATE
;
205 bool xen_domid_restrict
;
207 static int has_defaults
= 1;
208 static int default_serial
= 1;
209 static int default_parallel
= 1;
210 static int default_monitor
= 1;
211 static int default_floppy
= 1;
212 static int default_cdrom
= 1;
213 static int default_sdcard
= 1;
214 static int default_vga
= 1;
215 static int default_net
= 1;
221 { .driver
= "isa-serial", .flag
= &default_serial
},
222 { .driver
= "isa-parallel", .flag
= &default_parallel
},
223 { .driver
= "isa-fdc", .flag
= &default_floppy
},
224 { .driver
= "floppy", .flag
= &default_floppy
},
225 { .driver
= "ide-cd", .flag
= &default_cdrom
},
226 { .driver
= "ide-hd", .flag
= &default_cdrom
},
227 { .driver
= "ide-drive", .flag
= &default_cdrom
},
228 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
229 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
230 { .driver
= "VGA", .flag
= &default_vga
},
231 { .driver
= "isa-vga", .flag
= &default_vga
},
232 { .driver
= "cirrus-vga", .flag
= &default_vga
},
233 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
234 { .driver
= "vmware-svga", .flag
= &default_vga
},
235 { .driver
= "qxl-vga", .flag
= &default_vga
},
236 { .driver
= "virtio-vga", .flag
= &default_vga
},
237 { .driver
= "ati-vga", .flag
= &default_vga
},
238 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
241 static QemuOptsList qemu_rtc_opts
= {
243 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
248 .type
= QEMU_OPT_STRING
,
251 .type
= QEMU_OPT_STRING
,
254 .type
= QEMU_OPT_STRING
,
256 { /* end of list */ }
260 static QemuOptsList qemu_option_rom_opts
= {
261 .name
= "option-rom",
262 .implied_opt_name
= "romfile",
263 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
267 .type
= QEMU_OPT_NUMBER
,
270 .type
= QEMU_OPT_STRING
,
272 { /* end of list */ }
276 static QemuOptsList qemu_machine_opts
= {
278 .implied_opt_name
= "type",
280 .head
= QTAILQ_HEAD_INITIALIZER(qemu_machine_opts
.head
),
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
291 static QemuOptsList qemu_accel_opts
= {
293 .implied_opt_name
= "accel",
294 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
297 * no elements => accept any
298 * sanity checking will happen later
299 * when setting accelerator properties
305 static QemuOptsList qemu_boot_opts
= {
307 .implied_opt_name
= "order",
309 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
313 .type
= QEMU_OPT_STRING
,
316 .type
= QEMU_OPT_STRING
,
319 .type
= QEMU_OPT_BOOL
,
322 .type
= QEMU_OPT_STRING
,
324 .name
= "splash-time",
325 .type
= QEMU_OPT_NUMBER
,
327 .name
= "reboot-timeout",
328 .type
= QEMU_OPT_NUMBER
,
331 .type
= QEMU_OPT_BOOL
,
337 static QemuOptsList qemu_add_fd_opts
= {
339 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
343 .type
= QEMU_OPT_NUMBER
,
344 .help
= "file descriptor of which a duplicate is added to fd set",
347 .type
= QEMU_OPT_NUMBER
,
348 .help
= "ID of the fd set to add fd to",
351 .type
= QEMU_OPT_STRING
,
352 .help
= "free-form string used to describe fd",
354 { /* end of list */ }
358 static QemuOptsList qemu_object_opts
= {
360 .implied_opt_name
= "qom-type",
361 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
367 static QemuOptsList qemu_tpmdev_opts
= {
369 .implied_opt_name
= "type",
370 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
372 /* options are defined in the TPM backends */
373 { /* end of list */ }
377 static QemuOptsList qemu_realtime_opts
= {
379 .head
= QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts
.head
),
383 .type
= QEMU_OPT_BOOL
,
385 { /* end of list */ }
389 static QemuOptsList qemu_overcommit_opts
= {
390 .name
= "overcommit",
391 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
395 .type
= QEMU_OPT_BOOL
,
399 .type
= QEMU_OPT_BOOL
,
401 { /* end of list */ }
405 static QemuOptsList qemu_msg_opts
= {
407 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
411 .type
= QEMU_OPT_BOOL
,
413 { /* end of list */ }
417 static QemuOptsList qemu_name_opts
= {
419 .implied_opt_name
= "guest",
421 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
425 .type
= QEMU_OPT_STRING
,
426 .help
= "Sets the name of the guest.\n"
427 "This name will be displayed in the SDL window caption.\n"
428 "The name will also be used for the VNC server",
431 .type
= QEMU_OPT_STRING
,
432 .help
= "Sets the name of the QEMU process, as shown in top etc",
434 .name
= "debug-threads",
435 .type
= QEMU_OPT_BOOL
,
436 .help
= "When enabled, name the individual threads; defaults off.\n"
437 "NOTE: The thread names are for debugging and not a\n"
440 { /* End of list */ }
444 static QemuOptsList qemu_mem_opts
= {
446 .implied_opt_name
= "size",
447 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
452 .type
= QEMU_OPT_SIZE
,
456 .type
= QEMU_OPT_NUMBER
,
460 .type
= QEMU_OPT_SIZE
,
462 { /* end of list */ }
466 static QemuOptsList qemu_icount_opts
= {
468 .implied_opt_name
= "shift",
470 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
474 .type
= QEMU_OPT_STRING
,
477 .type
= QEMU_OPT_BOOL
,
480 .type
= QEMU_OPT_BOOL
,
483 .type
= QEMU_OPT_STRING
,
486 .type
= QEMU_OPT_STRING
,
488 .name
= "rrsnapshot",
489 .type
= QEMU_OPT_STRING
,
491 { /* end of list */ }
495 static QemuOptsList qemu_fw_cfg_opts
= {
497 .implied_opt_name
= "name",
498 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
502 .type
= QEMU_OPT_STRING
,
503 .help
= "Sets the fw_cfg name of the blob to be inserted",
506 .type
= QEMU_OPT_STRING
,
507 .help
= "Sets the name of the file from which "
508 "the fw_cfg blob will be loaded",
511 .type
= QEMU_OPT_STRING
,
512 .help
= "Sets content of the blob to be inserted from a string",
514 { /* end of list */ }
519 * Get machine options
521 * Returns: machine options (never null).
523 QemuOpts
*qemu_get_machine_opts(void)
525 return qemu_find_opts_singleton("machine");
528 const char *qemu_get_vm_name(void)
533 static void res_free(void)
535 g_free(boot_splash_filedata
);
536 boot_splash_filedata
= NULL
;
539 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
541 const char *driver
= qemu_opt_get(opts
, "driver");
546 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
547 if (strcmp(default_list
[i
].driver
, driver
) != 0)
549 *(default_list
[i
].flag
) = 0;
554 /***********************************************************/
557 static RunState current_run_state
= RUN_STATE_PRECONFIG
;
559 /* We use RUN_STATE__MAX but any invalid value will do */
560 static RunState vmstop_requested
= RUN_STATE__MAX
;
561 static QemuMutex vmstop_lock
;
566 } RunStateTransition
;
568 static const RunStateTransition runstate_transitions_def
[] = {
570 { RUN_STATE_PRECONFIG
, RUN_STATE_PRELAUNCH
},
571 /* Early switch to inmigrate state to allow -incoming CLI option work
572 * as it used to. TODO: delay actual switching to inmigrate state to
573 * the point after machine is built and remove this hack.
575 { RUN_STATE_PRECONFIG
, RUN_STATE_INMIGRATE
},
577 { RUN_STATE_DEBUG
, RUN_STATE_RUNNING
},
578 { RUN_STATE_DEBUG
, RUN_STATE_FINISH_MIGRATE
},
579 { RUN_STATE_DEBUG
, RUN_STATE_PRELAUNCH
},
581 { RUN_STATE_INMIGRATE
, RUN_STATE_INTERNAL_ERROR
},
582 { RUN_STATE_INMIGRATE
, RUN_STATE_IO_ERROR
},
583 { RUN_STATE_INMIGRATE
, RUN_STATE_PAUSED
},
584 { RUN_STATE_INMIGRATE
, RUN_STATE_RUNNING
},
585 { RUN_STATE_INMIGRATE
, RUN_STATE_SHUTDOWN
},
586 { RUN_STATE_INMIGRATE
, RUN_STATE_SUSPENDED
},
587 { RUN_STATE_INMIGRATE
, RUN_STATE_WATCHDOG
},
588 { RUN_STATE_INMIGRATE
, RUN_STATE_GUEST_PANICKED
},
589 { RUN_STATE_INMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
590 { RUN_STATE_INMIGRATE
, RUN_STATE_PRELAUNCH
},
591 { RUN_STATE_INMIGRATE
, RUN_STATE_POSTMIGRATE
},
592 { RUN_STATE_INMIGRATE
, RUN_STATE_COLO
},
594 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PAUSED
},
595 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_FINISH_MIGRATE
},
596 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PRELAUNCH
},
598 { RUN_STATE_IO_ERROR
, RUN_STATE_RUNNING
},
599 { RUN_STATE_IO_ERROR
, RUN_STATE_FINISH_MIGRATE
},
600 { RUN_STATE_IO_ERROR
, RUN_STATE_PRELAUNCH
},
602 { RUN_STATE_PAUSED
, RUN_STATE_RUNNING
},
603 { RUN_STATE_PAUSED
, RUN_STATE_FINISH_MIGRATE
},
604 { RUN_STATE_PAUSED
, RUN_STATE_POSTMIGRATE
},
605 { RUN_STATE_PAUSED
, RUN_STATE_PRELAUNCH
},
606 { RUN_STATE_PAUSED
, RUN_STATE_COLO
},
608 { RUN_STATE_POSTMIGRATE
, RUN_STATE_RUNNING
},
609 { RUN_STATE_POSTMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
610 { RUN_STATE_POSTMIGRATE
, RUN_STATE_PRELAUNCH
},
612 { RUN_STATE_PRELAUNCH
, RUN_STATE_RUNNING
},
613 { RUN_STATE_PRELAUNCH
, RUN_STATE_FINISH_MIGRATE
},
614 { RUN_STATE_PRELAUNCH
, RUN_STATE_INMIGRATE
},
616 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_RUNNING
},
617 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PAUSED
},
618 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_POSTMIGRATE
},
619 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PRELAUNCH
},
620 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_COLO
},
622 { RUN_STATE_RESTORE_VM
, RUN_STATE_RUNNING
},
623 { RUN_STATE_RESTORE_VM
, RUN_STATE_PRELAUNCH
},
625 { RUN_STATE_COLO
, RUN_STATE_RUNNING
},
627 { RUN_STATE_RUNNING
, RUN_STATE_DEBUG
},
628 { RUN_STATE_RUNNING
, RUN_STATE_INTERNAL_ERROR
},
629 { RUN_STATE_RUNNING
, RUN_STATE_IO_ERROR
},
630 { RUN_STATE_RUNNING
, RUN_STATE_PAUSED
},
631 { RUN_STATE_RUNNING
, RUN_STATE_FINISH_MIGRATE
},
632 { RUN_STATE_RUNNING
, RUN_STATE_RESTORE_VM
},
633 { RUN_STATE_RUNNING
, RUN_STATE_SAVE_VM
},
634 { RUN_STATE_RUNNING
, RUN_STATE_SHUTDOWN
},
635 { RUN_STATE_RUNNING
, RUN_STATE_WATCHDOG
},
636 { RUN_STATE_RUNNING
, RUN_STATE_GUEST_PANICKED
},
637 { RUN_STATE_RUNNING
, RUN_STATE_COLO
},
639 { RUN_STATE_SAVE_VM
, RUN_STATE_RUNNING
},
641 { RUN_STATE_SHUTDOWN
, RUN_STATE_PAUSED
},
642 { RUN_STATE_SHUTDOWN
, RUN_STATE_FINISH_MIGRATE
},
643 { RUN_STATE_SHUTDOWN
, RUN_STATE_PRELAUNCH
},
645 { RUN_STATE_DEBUG
, RUN_STATE_SUSPENDED
},
646 { RUN_STATE_RUNNING
, RUN_STATE_SUSPENDED
},
647 { RUN_STATE_SUSPENDED
, RUN_STATE_RUNNING
},
648 { RUN_STATE_SUSPENDED
, RUN_STATE_FINISH_MIGRATE
},
649 { RUN_STATE_SUSPENDED
, RUN_STATE_PRELAUNCH
},
650 { RUN_STATE_SUSPENDED
, RUN_STATE_COLO
},
652 { RUN_STATE_WATCHDOG
, RUN_STATE_RUNNING
},
653 { RUN_STATE_WATCHDOG
, RUN_STATE_FINISH_MIGRATE
},
654 { RUN_STATE_WATCHDOG
, RUN_STATE_PRELAUNCH
},
655 { RUN_STATE_WATCHDOG
, RUN_STATE_COLO
},
657 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_RUNNING
},
658 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_FINISH_MIGRATE
},
659 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_PRELAUNCH
},
661 { RUN_STATE__MAX
, RUN_STATE__MAX
},
664 static bool runstate_valid_transitions
[RUN_STATE__MAX
][RUN_STATE__MAX
];
666 bool runstate_check(RunState state
)
668 return current_run_state
== state
;
671 bool runstate_store(char *str
, size_t size
)
673 const char *state
= RunState_str(current_run_state
);
674 size_t len
= strlen(state
) + 1;
679 memcpy(str
, state
, len
);
683 static void runstate_init(void)
685 const RunStateTransition
*p
;
687 memset(&runstate_valid_transitions
, 0, sizeof(runstate_valid_transitions
));
688 for (p
= &runstate_transitions_def
[0]; p
->from
!= RUN_STATE__MAX
; p
++) {
689 runstate_valid_transitions
[p
->from
][p
->to
] = true;
692 qemu_mutex_init(&vmstop_lock
);
695 /* This function will abort() on invalid state transitions */
696 void runstate_set(RunState new_state
)
698 assert(new_state
< RUN_STATE__MAX
);
700 trace_runstate_set(current_run_state
, RunState_str(current_run_state
),
701 new_state
, RunState_str(new_state
));
703 if (current_run_state
== new_state
) {
707 if (!runstate_valid_transitions
[current_run_state
][new_state
]) {
708 error_report("invalid runstate transition: '%s' -> '%s'",
709 RunState_str(current_run_state
),
710 RunState_str(new_state
));
714 current_run_state
= new_state
;
717 int runstate_is_running(void)
719 return runstate_check(RUN_STATE_RUNNING
);
722 bool runstate_needs_reset(void)
724 return runstate_check(RUN_STATE_INTERNAL_ERROR
) ||
725 runstate_check(RUN_STATE_SHUTDOWN
);
728 StatusInfo
*qmp_query_status(Error
**errp
)
730 StatusInfo
*info
= g_malloc0(sizeof(*info
));
732 info
->running
= runstate_is_running();
733 info
->singlestep
= singlestep
;
734 info
->status
= current_run_state
;
739 bool qemu_vmstop_requested(RunState
*r
)
741 qemu_mutex_lock(&vmstop_lock
);
742 *r
= vmstop_requested
;
743 vmstop_requested
= RUN_STATE__MAX
;
744 qemu_mutex_unlock(&vmstop_lock
);
745 return *r
< RUN_STATE__MAX
;
748 void qemu_system_vmstop_request_prepare(void)
750 qemu_mutex_lock(&vmstop_lock
);
753 void qemu_system_vmstop_request(RunState state
)
755 vmstop_requested
= state
;
756 qemu_mutex_unlock(&vmstop_lock
);
760 /***********************************************************/
761 /* RTC reference time/date access */
762 static time_t qemu_ref_timedate(QEMUClockType clock
)
764 time_t value
= qemu_clock_get_ms(clock
) / 1000;
766 case QEMU_CLOCK_REALTIME
:
767 value
-= rtc_realtime_clock_offset
;
769 case QEMU_CLOCK_VIRTUAL
:
770 value
+= rtc_ref_start_datetime
;
772 case QEMU_CLOCK_HOST
:
773 if (rtc_base_type
== RTC_BASE_DATETIME
) {
774 value
-= rtc_host_datetime_offset
;
783 void qemu_get_timedate(struct tm
*tm
, int offset
)
785 time_t ti
= qemu_ref_timedate(rtc_clock
);
789 switch (rtc_base_type
) {
790 case RTC_BASE_DATETIME
:
794 case RTC_BASE_LOCALTIME
:
795 localtime_r(&ti
, tm
);
800 int qemu_timedate_diff(struct tm
*tm
)
804 switch (rtc_base_type
) {
805 case RTC_BASE_DATETIME
:
807 seconds
= mktimegm(tm
);
809 case RTC_BASE_LOCALTIME
:
812 tmp
.tm_isdst
= -1; /* use timezone to figure it out */
813 seconds
= mktime(&tmp
);
820 return seconds
- qemu_ref_timedate(QEMU_CLOCK_HOST
);
823 static void configure_rtc_base_datetime(const char *startdate
)
825 time_t rtc_start_datetime
;
828 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d", &tm
.tm_year
, &tm
.tm_mon
,
829 &tm
.tm_mday
, &tm
.tm_hour
, &tm
.tm_min
, &tm
.tm_sec
) == 6) {
831 } else if (sscanf(startdate
, "%d-%d-%d",
832 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
) == 3) {
841 rtc_start_datetime
= mktimegm(&tm
);
842 if (rtc_start_datetime
== -1) {
844 error_report("invalid datetime format");
845 error_printf("valid formats: "
846 "'2006-06-17T16:01:21' or '2006-06-17'\n");
849 rtc_host_datetime_offset
= rtc_ref_start_datetime
- rtc_start_datetime
;
850 rtc_ref_start_datetime
= rtc_start_datetime
;
853 static void configure_rtc(QemuOpts
*opts
)
858 rtc_clock
= QEMU_CLOCK_HOST
;
859 rtc_ref_start_datetime
= qemu_clock_get_ms(QEMU_CLOCK_HOST
) / 1000;
860 rtc_realtime_clock_offset
= qemu_clock_get_ms(QEMU_CLOCK_REALTIME
) / 1000;
862 value
= qemu_opt_get(opts
, "base");
864 if (!strcmp(value
, "utc")) {
865 rtc_base_type
= RTC_BASE_UTC
;
866 } else if (!strcmp(value
, "localtime")) {
867 Error
*blocker
= NULL
;
868 rtc_base_type
= RTC_BASE_LOCALTIME
;
869 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
870 "-rtc base=localtime");
871 replay_add_blocker(blocker
);
873 rtc_base_type
= RTC_BASE_DATETIME
;
874 configure_rtc_base_datetime(value
);
877 value
= qemu_opt_get(opts
, "clock");
879 if (!strcmp(value
, "host")) {
880 rtc_clock
= QEMU_CLOCK_HOST
;
881 } else if (!strcmp(value
, "rt")) {
882 rtc_clock
= QEMU_CLOCK_REALTIME
;
883 } else if (!strcmp(value
, "vm")) {
884 rtc_clock
= QEMU_CLOCK_VIRTUAL
;
886 error_report("invalid option value '%s'", value
);
890 value
= qemu_opt_get(opts
, "driftfix");
892 if (!strcmp(value
, "slew")) {
893 object_register_sugar_prop("mc146818rtc",
896 } else if (!strcmp(value
, "none")) {
897 /* discard is default */
899 error_report("invalid option value '%s'", value
);
905 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
907 const char *proc_name
;
909 if (qemu_opt_get(opts
, "debug-threads")) {
910 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
912 qemu_name
= qemu_opt_get(opts
, "guest");
914 proc_name
= qemu_opt_get(opts
, "process");
916 os_set_proc_name(proc_name
);
922 bool defaults_enabled(void)
928 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
930 int fd
, dupfd
, flags
;
932 const char *fd_opaque
= NULL
;
935 fd
= qemu_opt_get_number(opts
, "fd", -1);
936 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
937 fd_opaque
= qemu_opt_get(opts
, "opaque");
940 error_setg(errp
, "fd option is required and must be non-negative");
944 if (fd
<= STDERR_FILENO
) {
945 error_setg(errp
, "fd cannot be a standard I/O stream");
950 * All fds inherited across exec() necessarily have FD_CLOEXEC
951 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
953 flags
= fcntl(fd
, F_GETFD
);
954 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
955 error_setg(errp
, "fd is not valid or already in use");
960 error_setg(errp
, "set option is required and must be non-negative");
964 #ifdef F_DUPFD_CLOEXEC
965 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
969 qemu_set_cloexec(dupfd
);
973 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
977 /* add the duplicate fd, and optionally the opaque string, to the fd set */
978 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, !!fd_opaque
, fd_opaque
,
985 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
989 fd
= qemu_opt_get_number(opts
, "fd", -1);
996 /***********************************************************/
997 /* QEMU Block devices */
999 #define HD_OPTS "media=disk"
1000 #define CDROM_OPTS "media=cdrom"
1002 #define PFLASH_OPTS ""
1006 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1008 BlockInterfaceType
*block_default_type
= opaque
;
1010 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
1013 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1015 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
1016 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
1021 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
1022 int index
, const char *optstr
)
1027 if (!enable
|| drive_get_by_index(type
, index
)) {
1031 opts
= drive_add(type
, index
, NULL
, optstr
);
1033 drive_enable_snapshot(NULL
, opts
, NULL
);
1036 dinfo
= drive_new(opts
, type
, &error_abort
);
1037 dinfo
->is_default
= true;
1041 typedef struct BlockdevOptionsQueueEntry
{
1042 BlockdevOptions
*bdo
;
1044 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
1045 } BlockdevOptionsQueueEntry
;
1047 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
1049 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
1050 MachineClass
*machine_class
, int snapshot
)
1053 * If the currently selected machine wishes to override the
1054 * units-per-bus property of its default HBA interface type, do so
1057 if (machine_class
->units_per_default_bus
) {
1058 override_max_devs(machine_class
->block_default_type
,
1059 machine_class
->units_per_default_bus
);
1062 /* open the virtual block devices */
1063 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
1064 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
1066 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
1067 loc_push_restore(&bdo
->loc
);
1068 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
1070 qapi_free_BlockdevOptions(bdo
->bdo
);
1074 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
1077 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
1078 &machine_class
->block_default_type
, &error_fatal
)) {
1079 /* We printed help */
1083 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
1085 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
1086 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
1090 static QemuOptsList qemu_smp_opts
= {
1092 .implied_opt_name
= "cpus",
1093 .merge_lists
= true,
1094 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
1098 .type
= QEMU_OPT_NUMBER
,
1101 .type
= QEMU_OPT_NUMBER
,
1104 .type
= QEMU_OPT_NUMBER
,
1107 .type
= QEMU_OPT_NUMBER
,
1110 .type
= QEMU_OPT_NUMBER
,
1113 .type
= QEMU_OPT_NUMBER
,
1115 { /*End of list */ }
1119 static void realtime_init(void)
1122 if (os_mlock() < 0) {
1123 error_report("locking memory failed");
1130 static void configure_msg(QemuOpts
*opts
)
1132 error_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
1136 /***********************************************************/
1139 static int usb_device_add(const char *devname
)
1141 USBDevice
*dev
= NULL
;
1143 if (!machine_usb(current_machine
)) {
1147 dev
= usbdevice_create(devname
);
1154 static int usb_parse(const char *cmdline
)
1157 r
= usb_device_add(cmdline
);
1159 error_report("could not add USB device '%s'", cmdline
);
1164 /***********************************************************/
1165 /* machine registration */
1167 MachineState
*current_machine
;
1169 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
1173 for (el
= machines
; el
; el
= el
->next
) {
1174 MachineClass
*mc
= el
->data
;
1176 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
1184 static MachineClass
*find_default_machine(GSList
*machines
)
1188 for (el
= machines
; el
; el
= el
->next
) {
1189 MachineClass
*mc
= el
->data
;
1191 if (mc
->is_default
) {
1199 static int machine_help_func(QemuOpts
*opts
, MachineState
*machine
)
1201 ObjectProperty
*prop
;
1202 ObjectPropertyIterator iter
;
1204 if (!qemu_opt_has_help_opt(opts
)) {
1208 object_property_iter_init(&iter
, OBJECT(machine
));
1209 while ((prop
= object_property_iter_next(&iter
))) {
1214 printf("%s.%s=%s", MACHINE_GET_CLASS(machine
)->name
,
1215 prop
->name
, prop
->type
);
1216 if (prop
->description
) {
1217 printf(" (%s)\n", prop
->description
);
1226 struct VMChangeStateEntry
{
1227 VMChangeStateHandler
*cb
;
1229 QTAILQ_ENTRY(VMChangeStateEntry
) entries
;
1233 static QTAILQ_HEAD(, VMChangeStateEntry
) vm_change_state_head
;
1236 * qemu_add_vm_change_state_handler_prio:
1237 * @cb: the callback to invoke
1238 * @opaque: user data passed to the callback
1239 * @priority: low priorities execute first when the vm runs and the reverse is
1240 * true when the vm stops
1242 * Register a callback function that is invoked when the vm starts or stops
1245 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1247 VMChangeStateEntry
*qemu_add_vm_change_state_handler_prio(
1248 VMChangeStateHandler
*cb
, void *opaque
, int priority
)
1250 VMChangeStateEntry
*e
;
1251 VMChangeStateEntry
*other
;
1253 e
= g_malloc0(sizeof(*e
));
1256 e
->priority
= priority
;
1258 /* Keep list sorted in ascending priority order */
1259 QTAILQ_FOREACH(other
, &vm_change_state_head
, entries
) {
1260 if (priority
< other
->priority
) {
1261 QTAILQ_INSERT_BEFORE(other
, e
, entries
);
1266 QTAILQ_INSERT_TAIL(&vm_change_state_head
, e
, entries
);
1270 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
1273 return qemu_add_vm_change_state_handler_prio(cb
, opaque
, 0);
1276 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
1278 QTAILQ_REMOVE(&vm_change_state_head
, e
, entries
);
1282 void vm_state_notify(int running
, RunState state
)
1284 VMChangeStateEntry
*e
, *next
;
1286 trace_vm_state_notify(running
, state
, RunState_str(state
));
1289 QTAILQ_FOREACH_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1290 e
->cb(e
->opaque
, running
, state
);
1293 QTAILQ_FOREACH_REVERSE_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1294 e
->cb(e
->opaque
, running
, state
);
1299 static ShutdownCause reset_requested
;
1300 static ShutdownCause shutdown_requested
;
1301 static int shutdown_signal
;
1302 static pid_t shutdown_pid
;
1303 static int powerdown_requested
;
1304 static int debug_requested
;
1305 static int suspend_requested
;
1306 static bool preconfig_exit_requested
= true;
1307 static WakeupReason wakeup_reason
;
1308 static NotifierList powerdown_notifiers
=
1309 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers
);
1310 static NotifierList suspend_notifiers
=
1311 NOTIFIER_LIST_INITIALIZER(suspend_notifiers
);
1312 static NotifierList wakeup_notifiers
=
1313 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers
);
1314 static NotifierList shutdown_notifiers
=
1315 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers
);
1316 static uint32_t wakeup_reason_mask
= ~(1 << QEMU_WAKEUP_REASON_NONE
);
1318 ShutdownCause
qemu_shutdown_requested_get(void)
1320 return shutdown_requested
;
1323 ShutdownCause
qemu_reset_requested_get(void)
1325 return reset_requested
;
1328 static int qemu_shutdown_requested(void)
1330 return atomic_xchg(&shutdown_requested
, SHUTDOWN_CAUSE_NONE
);
1333 static void qemu_kill_report(void)
1335 if (!qtest_driver() && shutdown_signal
) {
1336 if (shutdown_pid
== 0) {
1337 /* This happens for eg ^C at the terminal, so it's worth
1338 * avoiding printing an odd message in that case.
1340 error_report("terminating on signal %d", shutdown_signal
);
1342 char *shutdown_cmd
= qemu_get_pid_name(shutdown_pid
);
1344 error_report("terminating on signal %d from pid " FMT_pid
" (%s)",
1345 shutdown_signal
, shutdown_pid
,
1346 shutdown_cmd
? shutdown_cmd
: "<unknown process>");
1347 g_free(shutdown_cmd
);
1349 shutdown_signal
= 0;
1353 static ShutdownCause
qemu_reset_requested(void)
1355 ShutdownCause r
= reset_requested
;
1357 if (r
&& replay_checkpoint(CHECKPOINT_RESET_REQUESTED
)) {
1358 reset_requested
= SHUTDOWN_CAUSE_NONE
;
1361 return SHUTDOWN_CAUSE_NONE
;
1364 static int qemu_suspend_requested(void)
1366 int r
= suspend_requested
;
1367 if (r
&& replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED
)) {
1368 suspend_requested
= 0;
1374 static WakeupReason
qemu_wakeup_requested(void)
1376 return wakeup_reason
;
1379 static int qemu_powerdown_requested(void)
1381 int r
= powerdown_requested
;
1382 powerdown_requested
= 0;
1386 static int qemu_debug_requested(void)
1388 int r
= debug_requested
;
1389 debug_requested
= 0;
1393 void qemu_exit_preconfig_request(void)
1395 preconfig_exit_requested
= true;
1399 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1401 void qemu_system_reset(ShutdownCause reason
)
1405 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1407 cpu_synchronize_all_states();
1409 if (mc
&& mc
->reset
) {
1410 mc
->reset(current_machine
);
1412 qemu_devices_reset();
1414 if (reason
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1415 qapi_event_send_reset(shutdown_caused_by_guest(reason
), reason
);
1417 cpu_synchronize_all_post_reset();
1421 * Wake the VM after suspend.
1423 static void qemu_system_wakeup(void)
1427 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1429 if (mc
&& mc
->wakeup
) {
1430 mc
->wakeup(current_machine
);
1434 void qemu_system_guest_panicked(GuestPanicInformation
*info
)
1436 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crashed");
1439 current_cpu
->crash_occurred
= true;
1441 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE
,
1443 vm_stop(RUN_STATE_GUEST_PANICKED
);
1445 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF
,
1447 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC
);
1451 if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_HYPER_V
) {
1452 qemu_log_mask(LOG_GUEST_ERROR
, "\nHV crash parameters: (%#"PRIx64
1453 " %#"PRIx64
" %#"PRIx64
" %#"PRIx64
" %#"PRIx64
")\n",
1454 info
->u
.hyper_v
.arg1
,
1455 info
->u
.hyper_v
.arg2
,
1456 info
->u
.hyper_v
.arg3
,
1457 info
->u
.hyper_v
.arg4
,
1458 info
->u
.hyper_v
.arg5
);
1459 } else if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_S390
) {
1460 qemu_log_mask(LOG_GUEST_ERROR
, " on cpu %d: %s\n"
1461 "PSW: 0x%016" PRIx64
" 0x%016" PRIx64
"\n",
1463 S390CrashReason_str(info
->u
.s390
.reason
),
1464 info
->u
.s390
.psw_mask
,
1465 info
->u
.s390
.psw_addr
);
1467 qapi_free_GuestPanicInformation(info
);
1471 void qemu_system_reset_request(ShutdownCause reason
)
1473 if (no_reboot
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1474 shutdown_requested
= reason
;
1476 reset_requested
= reason
;
1479 qemu_notify_event();
1482 static void qemu_system_suspend(void)
1485 notifier_list_notify(&suspend_notifiers
, NULL
);
1486 runstate_set(RUN_STATE_SUSPENDED
);
1487 qapi_event_send_suspend();
1490 void qemu_system_suspend_request(void)
1492 if (runstate_check(RUN_STATE_SUSPENDED
)) {
1495 suspend_requested
= 1;
1497 qemu_notify_event();
1500 void qemu_register_suspend_notifier(Notifier
*notifier
)
1502 notifier_list_add(&suspend_notifiers
, notifier
);
1505 void qemu_system_wakeup_request(WakeupReason reason
, Error
**errp
)
1507 trace_system_wakeup_request(reason
);
1509 if (!runstate_check(RUN_STATE_SUSPENDED
)) {
1511 "Unable to wake up: guest is not in suspended state");
1514 if (!(wakeup_reason_mask
& (1 << reason
))) {
1517 runstate_set(RUN_STATE_RUNNING
);
1518 wakeup_reason
= reason
;
1519 qemu_notify_event();
1522 void qemu_system_wakeup_enable(WakeupReason reason
, bool enabled
)
1525 wakeup_reason_mask
|= (1 << reason
);
1527 wakeup_reason_mask
&= ~(1 << reason
);
1531 void qemu_register_wakeup_notifier(Notifier
*notifier
)
1533 notifier_list_add(&wakeup_notifiers
, notifier
);
1536 void qemu_register_wakeup_support(void)
1538 wakeup_suspend_enabled
= true;
1541 bool qemu_wakeup_suspend_enabled(void)
1543 return wakeup_suspend_enabled
;
1546 void qemu_system_killed(int signal
, pid_t pid
)
1548 shutdown_signal
= signal
;
1552 /* Cannot call qemu_system_shutdown_request directly because
1553 * we are in a signal handler.
1555 shutdown_requested
= SHUTDOWN_CAUSE_HOST_SIGNAL
;
1556 qemu_notify_event();
1559 void qemu_system_shutdown_request(ShutdownCause reason
)
1561 trace_qemu_system_shutdown_request(reason
);
1562 replay_shutdown_request(reason
);
1563 shutdown_requested
= reason
;
1564 qemu_notify_event();
1567 static void qemu_system_powerdown(void)
1569 qapi_event_send_powerdown();
1570 notifier_list_notify(&powerdown_notifiers
, NULL
);
1573 static void qemu_system_shutdown(ShutdownCause cause
)
1575 qapi_event_send_shutdown(shutdown_caused_by_guest(cause
), cause
);
1576 notifier_list_notify(&shutdown_notifiers
, &cause
);
1579 void qemu_system_powerdown_request(void)
1581 trace_qemu_system_powerdown_request();
1582 powerdown_requested
= 1;
1583 qemu_notify_event();
1586 void qemu_register_powerdown_notifier(Notifier
*notifier
)
1588 notifier_list_add(&powerdown_notifiers
, notifier
);
1591 void qemu_register_shutdown_notifier(Notifier
*notifier
)
1593 notifier_list_add(&shutdown_notifiers
, notifier
);
1596 void qemu_system_debug_request(void)
1598 debug_requested
= 1;
1599 qemu_notify_event();
1602 static bool main_loop_should_exit(void)
1605 ShutdownCause request
;
1607 if (runstate_check(RUN_STATE_FINISH_MIGRATE
)) {
1610 if (preconfig_exit_requested
) {
1611 if (runstate_check(RUN_STATE_PRECONFIG
)) {
1612 runstate_set(RUN_STATE_PRELAUNCH
);
1614 preconfig_exit_requested
= false;
1617 if (qemu_debug_requested()) {
1618 vm_stop(RUN_STATE_DEBUG
);
1620 if (qemu_suspend_requested()) {
1621 qemu_system_suspend();
1623 request
= qemu_shutdown_requested();
1626 qemu_system_shutdown(request
);
1628 vm_stop(RUN_STATE_SHUTDOWN
);
1633 request
= qemu_reset_requested();
1636 qemu_system_reset(request
);
1638 if (!runstate_check(RUN_STATE_RUNNING
) &&
1639 !runstate_check(RUN_STATE_INMIGRATE
)) {
1640 runstate_set(RUN_STATE_PRELAUNCH
);
1643 if (qemu_wakeup_requested()) {
1645 qemu_system_wakeup();
1646 notifier_list_notify(&wakeup_notifiers
, &wakeup_reason
);
1647 wakeup_reason
= QEMU_WAKEUP_REASON_NONE
;
1649 qapi_event_send_wakeup();
1651 if (qemu_powerdown_requested()) {
1652 qemu_system_powerdown();
1654 if (qemu_vmstop_requested(&r
)) {
1660 static void main_loop(void)
1662 #ifdef CONFIG_PROFILER
1665 while (!main_loop_should_exit()) {
1666 #ifdef CONFIG_PROFILER
1667 ti
= profile_getclock();
1669 main_loop_wait(false);
1670 #ifdef CONFIG_PROFILER
1671 dev_time
+= profile_getclock() - ti
;
1676 static void version(void)
1678 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
1679 QEMU_COPYRIGHT
"\n");
1682 static void help(int exitcode
)
1685 printf("usage: %s [options] [disk_image]\n\n"
1686 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1687 error_get_progname());
1689 #define QEMU_OPTIONS_GENERATE_HELP
1690 #include "qemu-options-wrapper.h"
1692 printf("\nDuring emulation, the following keys are useful:\n"
1693 "ctrl-alt-f toggle full screen\n"
1694 "ctrl-alt-n switch to virtual console 'n'\n"
1695 "ctrl-alt toggle mouse and keyboard grab\n"
1697 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1699 QEMU_HELP_BOTTOM
"\n");
1704 #define HAS_ARG 0x0001
1706 typedef struct QEMUOption
{
1713 static const QEMUOption qemu_options
[] = {
1714 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
1715 #define QEMU_OPTIONS_GENERATE_OPTIONS
1716 #include "qemu-options-wrapper.h"
1720 typedef struct VGAInterfaceInfo
{
1721 const char *opt_name
; /* option name */
1722 const char *name
; /* human-readable name */
1723 /* Class names indicating that support is available.
1724 * If no class is specified, the interface is always available */
1725 const char *class_names
[2];
1728 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
1731 .name
= "no graphic card",
1735 .name
= "standard VGA",
1736 .class_names
= { "VGA", "isa-vga" },
1739 .opt_name
= "cirrus",
1740 .name
= "Cirrus VGA",
1741 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
1744 .opt_name
= "vmware",
1745 .name
= "VMWare SVGA",
1746 .class_names
= { "vmware-svga" },
1749 .opt_name
= "virtio",
1750 .name
= "Virtio VGA",
1751 .class_names
= { "virtio-vga" },
1756 .class_names
= { "qxl-vga" },
1760 .name
= "TCX framebuffer",
1761 .class_names
= { "SUNW,tcx" },
1765 .name
= "CG3 framebuffer",
1766 .class_names
= { "cgthree" },
1769 .opt_name
= "xenfb",
1770 .name
= "Xen paravirtualized framebuffer",
1774 static bool vga_interface_available(VGAInterfaceType t
)
1776 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1778 assert(t
< VGA_TYPE_MAX
);
1779 return !ti
->class_names
[0] ||
1780 object_class_by_name(ti
->class_names
[0]) ||
1781 object_class_by_name(ti
->class_names
[1]);
1785 get_default_vga_model(const MachineClass
*machine_class
)
1787 if (machine_class
->default_display
) {
1788 return machine_class
->default_display
;
1789 } else if (vga_interface_available(VGA_CIRRUS
)) {
1791 } else if (vga_interface_available(VGA_STD
)) {
1798 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1803 if (g_str_equal(p
, "help")) {
1804 const char *def
= get_default_vga_model(machine_class
);
1806 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1807 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1809 if (vga_interface_available(t
) && ti
->opt_name
) {
1810 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1811 g_str_equal(ti
->opt_name
, def
) ? " (default)" : "");
1817 assert(vga_interface_type
== VGA_NONE
);
1818 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1819 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1820 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1821 if (!vga_interface_available(t
)) {
1822 error_report("%s not available", ti
->name
);
1825 vga_interface_type
= t
;
1829 if (t
== VGA_TYPE_MAX
) {
1831 error_report("unknown vga type: %s", p
);
1835 const char *nextopt
;
1837 if (strstart(opts
, ",retrace=", &nextopt
)) {
1839 if (strstart(opts
, "dumb", &nextopt
))
1840 vga_retrace_method
= VGA_RETRACE_DUMB
;
1841 else if (strstart(opts
, "precise", &nextopt
))
1842 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1843 else goto invalid_vga
;
1844 } else goto invalid_vga
;
1849 static void parse_display_qapi(const char *optarg
)
1851 DisplayOptions
*opts
;
1854 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1856 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1857 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1859 qapi_free_DisplayOptions(opts
);
1863 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1865 return QAPI_CLONE(DisplayOptions
, &dpy
);
1868 static void parse_display(const char *p
)
1872 if (is_help_option(p
)) {
1873 qemu_display_help();
1877 if (strstart(p
, "sdl", &opts
)) {
1879 * sdl DisplayType needs hand-crafted parser instead of
1880 * parse_display_qapi() due to some options not in
1881 * DisplayOptions, specifically:
1883 * Already deprecated.
1884 * - ctrl_grab + alt_grab
1885 * Not clear yet what happens to them long-term. Should
1886 * replaced by something better or deprecated and dropped.
1888 dpy
.type
= DISPLAY_TYPE_SDL
;
1890 const char *nextopt
;
1892 if (strstart(opts
, ",alt_grab=", &nextopt
)) {
1894 if (strstart(opts
, "on", &nextopt
)) {
1896 } else if (strstart(opts
, "off", &nextopt
)) {
1899 goto invalid_sdl_args
;
1901 } else if (strstart(opts
, ",ctrl_grab=", &nextopt
)) {
1903 if (strstart(opts
, "on", &nextopt
)) {
1905 } else if (strstart(opts
, "off", &nextopt
)) {
1908 goto invalid_sdl_args
;
1910 } else if (strstart(opts
, ",window_close=", &nextopt
)) {
1912 dpy
.has_window_close
= true;
1913 if (strstart(opts
, "on", &nextopt
)) {
1914 dpy
.window_close
= true;
1915 } else if (strstart(opts
, "off", &nextopt
)) {
1916 dpy
.window_close
= false;
1918 goto invalid_sdl_args
;
1920 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1923 if (strstart(opts
, "on", &nextopt
)) {
1924 dpy
.gl
= DISPLAYGL_MODE_ON
;
1925 } else if (strstart(opts
, "core", &nextopt
)) {
1926 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1927 } else if (strstart(opts
, "es", &nextopt
)) {
1928 dpy
.gl
= DISPLAYGL_MODE_ES
;
1929 } else if (strstart(opts
, "off", &nextopt
)) {
1930 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1932 goto invalid_sdl_args
;
1936 error_report("invalid SDL option string");
1941 } else if (strstart(p
, "vnc", &opts
)) {
1943 * vnc isn't a (local) DisplayType but a protocol for remote
1947 vnc_parse(opts
+ 1, &error_fatal
);
1949 error_report("VNC requires a display argument vnc=<display>");
1953 parse_display_qapi(p
);
1957 char *qemu_find_file(int type
, const char *name
)
1963 /* Try the name as a straight path first */
1964 if (access(name
, R_OK
) == 0) {
1965 trace_load_file(name
, name
);
1966 return g_strdup(name
);
1970 case QEMU_FILE_TYPE_BIOS
:
1973 case QEMU_FILE_TYPE_KEYMAP
:
1974 subdir
= "keymaps/";
1980 for (i
= 0; i
< data_dir_idx
; i
++) {
1981 buf
= g_strdup_printf("%s/%s%s", data_dir
[i
], subdir
, name
);
1982 if (access(buf
, R_OK
) == 0) {
1983 trace_load_file(name
, buf
);
1991 static void qemu_add_data_dir(const char *path
)
1998 if (data_dir_idx
== ARRAY_SIZE(data_dir
)) {
2001 for (i
= 0; i
< data_dir_idx
; i
++) {
2002 if (strcmp(data_dir
[i
], path
) == 0) {
2003 return; /* duplicate */
2006 data_dir
[data_dir_idx
++] = g_strdup(path
);
2009 static inline bool nonempty_str(const char *str
)
2014 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2018 const char *name
, *file
, *str
;
2019 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
2021 if (fw_cfg
== NULL
) {
2022 error_setg(errp
, "fw_cfg device not available");
2025 name
= qemu_opt_get(opts
, "name");
2026 file
= qemu_opt_get(opts
, "file");
2027 str
= qemu_opt_get(opts
, "string");
2029 /* we need name and either a file or the content string */
2030 if (!(nonempty_str(name
) && (nonempty_str(file
) || nonempty_str(str
)))) {
2031 error_setg(errp
, "invalid argument(s)");
2034 if (nonempty_str(file
) && nonempty_str(str
)) {
2035 error_setg(errp
, "file and string are mutually exclusive");
2038 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
2039 error_setg(errp
, "name too long (max. %d char)",
2040 FW_CFG_MAX_FILE_PATH
- 1);
2043 if (strncmp(name
, "opt/", 4) != 0) {
2044 warn_report("externally provided fw_cfg item names "
2045 "should be prefixed with \"opt/\"");
2047 if (nonempty_str(str
)) {
2048 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
2049 buf
= g_memdup(str
, size
);
2052 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
2053 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
2058 /* For legacy, keep user files in a specific global order. */
2059 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
2060 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
2061 fw_cfg_reset_order_override(fw_cfg
);
2065 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2067 return qdev_device_help(opts
);
2070 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2074 dev
= qdev_device_add(opts
, errp
);
2075 if (!dev
&& *errp
) {
2076 error_report_err(*errp
);
2079 object_unref(OBJECT(dev
));
2084 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2086 Error
*local_err
= NULL
;
2088 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
2090 error_propagate(errp
, local_err
);
2098 #ifdef CONFIG_VIRTFS
2099 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2101 return qemu_fsdev_add(opts
, errp
);
2105 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2109 bool pretty
= false;
2110 const char *chardev
;
2113 mode
= qemu_opt_get(opts
, "mode");
2117 if (strcmp(mode
, "readline") == 0) {
2119 } else if (strcmp(mode
, "control") == 0) {
2122 error_setg(errp
, "unknown monitor mode \"%s\"", mode
);
2126 if (!qmp
&& qemu_opt_get(opts
, "pretty")) {
2127 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2128 "and will be removed in future versions");
2130 if (qemu_opt_get_bool(opts
, "pretty", 0)) {
2134 chardev
= qemu_opt_get(opts
, "chardev");
2136 error_report("chardev is required");
2139 chr
= qemu_chr_find(chardev
);
2141 error_setg(errp
, "chardev \"%s\" not found", chardev
);
2146 monitor_init_qmp(chr
, pretty
);
2148 monitor_init_hmp(chr
, true);
2153 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
2155 static int monitor_device_index
= 0;
2160 if (strstart(optarg
, "chardev:", &p
)) {
2161 snprintf(label
, sizeof(label
), "%s", p
);
2163 snprintf(label
, sizeof(label
), "compat_monitor%d",
2164 monitor_device_index
);
2165 opts
= qemu_chr_parse_compat(label
, optarg
, true);
2167 error_report("parse error: %s", optarg
);
2172 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
2173 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
2174 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
2175 if (!strcmp(mode
, "control")) {
2176 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
2178 assert(pretty
== false);
2180 monitor_device_index
++;
2183 struct device_config
{
2185 DEV_USB
, /* -usbdevice */
2186 DEV_SERIAL
, /* -serial */
2187 DEV_PARALLEL
, /* -parallel */
2188 DEV_DEBUGCON
, /* -debugcon */
2189 DEV_GDB
, /* -gdb, -s */
2190 DEV_SCLP
, /* s390 sclp */
2192 const char *cmdline
;
2194 QTAILQ_ENTRY(device_config
) next
;
2197 static QTAILQ_HEAD(, device_config
) device_configs
=
2198 QTAILQ_HEAD_INITIALIZER(device_configs
);
2200 static void add_device_config(int type
, const char *cmdline
)
2202 struct device_config
*conf
;
2204 conf
= g_malloc0(sizeof(*conf
));
2206 conf
->cmdline
= cmdline
;
2207 loc_save(&conf
->loc
);
2208 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
2211 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
2213 struct device_config
*conf
;
2216 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
2217 if (conf
->type
!= type
)
2219 loc_push_restore(&conf
->loc
);
2220 rc
= func(conf
->cmdline
);
2221 loc_pop(&conf
->loc
);
2229 static int serial_parse(const char *devname
)
2231 int index
= num_serial_hds
;
2234 if (strcmp(devname
, "none") == 0)
2236 snprintf(label
, sizeof(label
), "serial%d", index
);
2237 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
2239 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2240 if (!serial_hds
[index
]) {
2241 error_report("could not connect serial device"
2242 " to character backend '%s'", devname
);
2249 Chardev
*serial_hd(int i
)
2252 if (i
< num_serial_hds
) {
2253 return serial_hds
[i
];
2258 int serial_max_hds(void)
2260 return num_serial_hds
;
2263 static int parallel_parse(const char *devname
)
2265 static int index
= 0;
2268 if (strcmp(devname
, "none") == 0)
2270 if (index
== MAX_PARALLEL_PORTS
) {
2271 error_report("too many parallel ports");
2274 snprintf(label
, sizeof(label
), "parallel%d", index
);
2275 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2276 if (!parallel_hds
[index
]) {
2277 error_report("could not connect parallel device"
2278 " to character backend '%s'", devname
);
2285 static int debugcon_parse(const char *devname
)
2289 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
2290 error_report("invalid character backend '%s'", devname
);
2293 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
2295 error_report("already have a debugcon device");
2298 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
2299 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
2303 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
2305 const MachineClass
*mc1
= a
, *mc2
= b
;
2308 if (mc1
->family
== NULL
) {
2309 if (mc2
->family
== NULL
) {
2310 /* Compare standalone machine types against each other; they sort
2311 * in increasing order.
2313 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
2314 object_class_get_name(OBJECT_CLASS(mc2
)));
2317 /* Standalone machine types sort after families. */
2321 if (mc2
->family
== NULL
) {
2322 /* Families sort before standalone machine types. */
2326 /* Families sort between each other alphabetically increasingly. */
2327 res
= strcmp(mc1
->family
, mc2
->family
);
2332 /* Within the same family, machine types sort in decreasing order. */
2333 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
2334 object_class_get_name(OBJECT_CLASS(mc1
)));
2337 static MachineClass
*machine_parse(const char *name
, GSList
*machines
)
2342 if (is_help_option(name
)) {
2343 printf("Supported machines are:\n");
2344 machines
= g_slist_sort(machines
, machine_class_cmp
);
2345 for (el
= machines
; el
; el
= el
->next
) {
2346 MachineClass
*mc
= el
->data
;
2348 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
2350 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
2351 mc
->is_default
? " (default)" : "",
2352 mc
->deprecation_reason
? " (deprecated)" : "");
2357 mc
= find_machine(name
, machines
);
2359 error_report("unsupported machine type");
2360 error_printf("Use -machine help to list supported machines\n");
2366 void qemu_add_exit_notifier(Notifier
*notify
)
2368 notifier_list_add(&exit_notifiers
, notify
);
2371 void qemu_remove_exit_notifier(Notifier
*notify
)
2373 notifier_remove(notify
);
2376 static void qemu_run_exit_notifiers(void)
2378 notifier_list_notify(&exit_notifiers
, NULL
);
2381 static const char *pid_file
;
2382 static Notifier qemu_unlink_pidfile_notifier
;
2384 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
2391 bool machine_init_done
;
2393 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
2395 notifier_list_add(&machine_init_done_notifiers
, notify
);
2396 if (machine_init_done
) {
2397 notify
->notify(notify
, NULL
);
2401 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
2403 notifier_remove(notify
);
2406 static void qemu_run_machine_init_done_notifiers(void)
2408 machine_init_done
= true;
2409 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
2412 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
2413 const char **poptarg
, int *poptind
)
2415 const QEMUOption
*popt
;
2416 int optind
= *poptind
;
2417 char *r
= argv
[optind
];
2420 loc_set_cmdline(argv
, optind
, 1);
2422 /* Treat --foo the same as -foo. */
2425 popt
= qemu_options
;
2428 error_report("invalid option");
2431 if (!strcmp(popt
->name
, r
+ 1))
2435 if (popt
->flags
& HAS_ARG
) {
2436 if (optind
>= argc
) {
2437 error_report("requires an argument");
2440 optarg
= argv
[optind
++];
2441 loc_set_cmdline(argv
, optind
- 2, 2);
2452 static MachineClass
*select_machine(void)
2454 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
2455 MachineClass
*machine_class
= find_default_machine(machines
);
2460 loc_push_none(&loc
);
2462 opts
= qemu_get_machine_opts();
2463 qemu_opts_loc_restore(opts
);
2465 optarg
= qemu_opt_get(opts
, "type");
2467 machine_class
= machine_parse(optarg
, machines
);
2470 if (!machine_class
) {
2471 error_report("No machine specified, and there is no default");
2472 error_printf("Use -machine help to list supported machines\n");
2477 g_slist_free(machines
);
2478 return machine_class
;
2481 static int object_parse_property_opt(Object
*obj
,
2482 const char *name
, const char *value
,
2483 const char *skip
, Error
**errp
)
2485 Error
*local_err
= NULL
;
2487 if (g_str_equal(name
, skip
)) {
2491 object_property_parse(obj
, value
, name
, &local_err
);
2494 error_propagate(errp
, local_err
);
2501 static int machine_set_property(void *opaque
,
2502 const char *name
, const char *value
,
2505 g_autofree
char *qom_name
= g_strdup(name
);
2508 for (p
= qom_name
; *p
; p
++) {
2514 /* Legacy options do not correspond to MachineState properties. */
2515 if (g_str_equal(qom_name
, "accel")) {
2518 if (g_str_equal(qom_name
, "igd-passthru")) {
2519 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name
, value
);
2522 if (g_str_equal(qom_name
, "kvm-shadow-mem") ||
2523 g_str_equal(qom_name
, "kernel-irqchip")) {
2524 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name
, value
);
2528 return object_parse_property_opt(opaque
, name
, value
, "type", errp
);
2532 * Initial object creation happens before all other
2533 * QEMU data types are created. The majority of objects
2534 * can be created at this point. The rng-egd object
2535 * cannot be created here, as it depends on the chardev
2538 static bool object_create_initial(const char *type
, QemuOpts
*opts
)
2540 if (user_creatable_print_help(type
, opts
)) {
2545 * Objects should not be made "delayed" without a reason. If you
2546 * add one, state the reason in a comment!
2549 /* Reason: rng-egd property "chardev" */
2550 if (g_str_equal(type
, "rng-egd")) {
2554 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2555 /* Reason: cryptodev-vhost-user property "chardev" */
2556 if (g_str_equal(type
, "cryptodev-vhost-user")) {
2562 * Reason: filter-* property "netdev" etc.
2564 if (g_str_equal(type
, "filter-buffer") ||
2565 g_str_equal(type
, "filter-dump") ||
2566 g_str_equal(type
, "filter-mirror") ||
2567 g_str_equal(type
, "filter-redirector") ||
2568 g_str_equal(type
, "colo-compare") ||
2569 g_str_equal(type
, "filter-rewriter") ||
2570 g_str_equal(type
, "filter-replay")) {
2574 /* Memory allocation by backends needs to be done
2575 * after configure_accelerator() (due to the tcg_enabled()
2576 * checks at memory_region_init_*()).
2578 * Also, allocation of large amounts of memory may delay
2579 * chardev initialization for too long, and trigger timeouts
2580 * on software that waits for a monitor socket to be created
2583 if (g_str_has_prefix(type
, "memory-backend-")) {
2592 * The remainder of object creation happens after the
2593 * creation of chardev, fsdev, net clients and device data types.
2595 static bool object_create_delayed(const char *type
, QemuOpts
*opts
)
2597 return !object_create_initial(type
, opts
);
2601 static void set_memory_options(uint64_t *ram_slots
, ram_addr_t
*maxram_size
,
2605 const char *mem_str
;
2606 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2607 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2610 loc_push_none(&loc
);
2611 qemu_opts_loc_restore(opts
);
2614 mem_str
= qemu_opt_get(opts
, "size");
2617 error_report("missing 'size' option value");
2621 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2623 /* Fix up legacy suffix-less format */
2624 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2625 uint64_t overflow_check
= sz
;
2628 if (sz
/ MiB
!= overflow_check
) {
2629 error_report("too large 'size' option value");
2635 /* backward compatibility behaviour for case "-m 0" */
2637 sz
= default_ram_size
;
2640 sz
= QEMU_ALIGN_UP(sz
, 8192);
2642 if (ram_size
!= sz
) {
2643 error_report("ram size too large");
2647 /* store value for the future use */
2648 qemu_opt_set_number(opts
, "size", ram_size
, &error_abort
);
2649 *maxram_size
= ram_size
;
2651 if (qemu_opt_get(opts
, "maxmem")) {
2654 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2655 slots
= qemu_opt_get_number(opts
, "slots", 0);
2656 if (sz
< ram_size
) {
2657 error_report("invalid value of -m option maxmem: "
2658 "maximum memory size (0x%" PRIx64
") must be at least "
2659 "the initial memory size (0x" RAM_ADDR_FMT
")",
2662 } else if (slots
&& sz
== ram_size
) {
2663 error_report("invalid value of -m option maxmem: "
2664 "memory slots were specified but maximum memory size "
2665 "(0x%" PRIx64
") is equal to the initial memory size "
2666 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2672 } else if (qemu_opt_get(opts
, "slots")) {
2673 error_report("invalid -m option value: missing 'maxmem' option");
2680 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2684 g
= g_malloc0(sizeof(*g
));
2685 g
->driver
= qemu_opt_get(opts
, "driver");
2686 g
->property
= qemu_opt_get(opts
, "property");
2687 g
->value
= qemu_opt_get(opts
, "value");
2688 qdev_prop_register_global(g
);
2692 static int qemu_read_default_config_file(void)
2696 ret
= qemu_read_config_file(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2697 if (ret
< 0 && ret
!= -ENOENT
) {
2704 static void user_register_global_props(void)
2706 qemu_opts_foreach(qemu_find_opts("global"),
2707 global_init_func
, NULL
, NULL
);
2710 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2712 configure_icount(opts
, errp
);
2716 static int accelerator_set_property(void *opaque
,
2717 const char *name
, const char *value
,
2720 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2723 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2725 bool *p_init_failed
= opaque
;
2726 const char *acc
= qemu_opt_get(opts
, "accel");
2727 AccelClass
*ac
= accel_find(acc
);
2732 *p_init_failed
= true;
2733 error_report("invalid accelerator %s", acc
);
2736 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2737 object_apply_compat_props(OBJECT(accel
));
2738 qemu_opt_foreach(opts
, accelerator_set_property
,
2742 ret
= accel_init_machine(accel
, current_machine
);
2744 *p_init_failed
= true;
2745 error_report("failed to initialize %s: %s",
2746 acc
, strerror(-ret
));
2753 static void configure_accelerators(const char *progname
)
2756 char **accel_list
, **tmp
;
2757 bool accel_initialised
= false;
2758 bool init_failed
= false;
2760 qemu_opts_foreach(qemu_find_opts("icount"),
2761 do_configure_icount
, NULL
, &error_fatal
);
2763 accel
= qemu_opt_get(qemu_get_machine_opts(), "accel");
2764 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2765 if (accel
== NULL
) {
2766 /* Select the default accelerator */
2767 if (!accel_find("tcg") && !accel_find("kvm")) {
2768 error_report("No accelerator selected and"
2769 " no default accelerator available");
2772 int pnlen
= strlen(progname
);
2773 if (pnlen
>= 3 && g_str_equal(&progname
[pnlen
- 3], "kvm")) {
2774 /* If the program name ends with "kvm", we prefer KVM */
2782 accel_list
= g_strsplit(accel
, ":", 0);
2784 for (tmp
= accel_list
; !accel_initialised
&& tmp
&& *tmp
; tmp
++) {
2786 * Filter invalid accelerators here, to prevent obscenities
2787 * such as "-machine accel=tcg,,thread=single".
2789 if (accel_find(*tmp
)) {
2790 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2793 error_report("invalid accelerator %s", *tmp
);
2796 g_strfreev(accel_list
);
2798 if (accel
!= NULL
) {
2799 error_report("The -accel and \"-machine accel=\" options are incompatible");
2804 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2805 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2807 error_report("no accelerator found");
2813 AccelClass
*ac
= ACCEL_GET_CLASS(current_machine
->accelerator
);
2814 error_report("falling back to %s", ac
->name
);
2817 if (use_icount
&& !(tcg_enabled() || qtest_enabled())) {
2818 error_report("-icount is not allowed with hardware virtualization");
2823 int main(int argc
, char **argv
, char **envp
)
2826 int snapshot
, linux_boot
;
2827 const char *initrd_filename
;
2828 const char *kernel_filename
, *kernel_cmdline
;
2829 const char *boot_order
= NULL
;
2830 const char *boot_once
= NULL
;
2832 QemuOpts
*opts
, *machine_opts
;
2833 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2834 QemuOptsList
*olist
;
2837 const char *loadvm
= NULL
;
2838 MachineClass
*machine_class
;
2839 const char *cpu_option
;
2840 const char *vga_model
= NULL
;
2841 const char *qtest_chrdev
= NULL
;
2842 const char *qtest_log
= NULL
;
2843 const char *incoming
= NULL
;
2844 bool userconfig
= true;
2845 bool nographic
= false;
2846 int display_remote
= 0;
2847 const char *log_mask
= NULL
;
2848 const char *log_file
= NULL
;
2849 char *trace_file
= NULL
;
2850 ram_addr_t maxram_size
;
2851 uint64_t ram_slots
= 0;
2852 FILE *vmstate_dump_file
= NULL
;
2853 Error
*main_loop_err
= NULL
;
2855 bool list_data_dirs
= false;
2857 BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
2858 QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
2860 os_set_line_buffering();
2862 error_init(argv
[0]);
2863 module_call_init(MODULE_INIT_TRACE
);
2865 qemu_init_cpu_list();
2866 qemu_init_cpu_loop();
2868 qemu_mutex_lock_iothread();
2870 atexit(qemu_run_exit_notifiers
);
2871 qemu_init_exec_dir(argv
[0]);
2873 module_call_init(MODULE_INIT_QOM
);
2875 qemu_add_opts(&qemu_drive_opts
);
2876 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2877 qemu_add_drive_opts(&qemu_common_drive_opts
);
2878 qemu_add_drive_opts(&qemu_drive_opts
);
2879 qemu_add_drive_opts(&bdrv_runtime_opts
);
2880 qemu_add_opts(&qemu_chardev_opts
);
2881 qemu_add_opts(&qemu_device_opts
);
2882 qemu_add_opts(&qemu_netdev_opts
);
2883 qemu_add_opts(&qemu_nic_opts
);
2884 qemu_add_opts(&qemu_net_opts
);
2885 qemu_add_opts(&qemu_rtc_opts
);
2886 qemu_add_opts(&qemu_global_opts
);
2887 qemu_add_opts(&qemu_mon_opts
);
2888 qemu_add_opts(&qemu_trace_opts
);
2889 qemu_plugin_add_opts();
2890 qemu_add_opts(&qemu_option_rom_opts
);
2891 qemu_add_opts(&qemu_machine_opts
);
2892 qemu_add_opts(&qemu_accel_opts
);
2893 qemu_add_opts(&qemu_mem_opts
);
2894 qemu_add_opts(&qemu_smp_opts
);
2895 qemu_add_opts(&qemu_boot_opts
);
2896 qemu_add_opts(&qemu_add_fd_opts
);
2897 qemu_add_opts(&qemu_object_opts
);
2898 qemu_add_opts(&qemu_tpmdev_opts
);
2899 qemu_add_opts(&qemu_realtime_opts
);
2900 qemu_add_opts(&qemu_overcommit_opts
);
2901 qemu_add_opts(&qemu_msg_opts
);
2902 qemu_add_opts(&qemu_name_opts
);
2903 qemu_add_opts(&qemu_numa_opts
);
2904 qemu_add_opts(&qemu_icount_opts
);
2905 qemu_add_opts(&qemu_semihosting_config_opts
);
2906 qemu_add_opts(&qemu_fw_cfg_opts
);
2907 module_call_init(MODULE_INIT_OPTS
);
2910 precopy_infrastructure_init();
2911 postcopy_infrastructure_init();
2912 monitor_init_globals();
2914 if (qcrypto_init(&err
) < 0) {
2915 error_reportf_err(err
, "cannot initialize crypto: ");
2919 QTAILQ_INIT(&vm_change_state_head
);
2920 os_setup_early_signal_handling();
2927 bdrv_init_with_whitelist();
2931 /* first pass of option parsing */
2933 while (optind
< argc
) {
2934 if (argv
[optind
][0] != '-') {
2938 const QEMUOption
*popt
;
2940 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2941 switch (popt
->index
) {
2942 case QEMU_OPTION_nouserconfig
:
2950 if (qemu_read_default_config_file() < 0) {
2955 /* second pass of option parsing */
2960 if (argv
[optind
][0] != '-') {
2961 loc_set_cmdline(argv
, optind
, 1);
2962 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2964 const QEMUOption
*popt
;
2966 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2967 if (!(popt
->arch_mask
& arch_type
)) {
2968 error_report("Option not supported for this target");
2971 switch(popt
->index
) {
2972 case QEMU_OPTION_cpu
:
2973 /* hw initialization will check this */
2974 cpu_option
= optarg
;
2976 case QEMU_OPTION_hda
:
2977 case QEMU_OPTION_hdb
:
2978 case QEMU_OPTION_hdc
:
2979 case QEMU_OPTION_hdd
:
2980 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2983 case QEMU_OPTION_blockdev
:
2986 BlockdevOptionsQueueEntry
*bdo
;
2988 v
= qobject_input_visitor_new_str(optarg
, "driver",
2991 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2992 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2995 loc_save(&bdo
->loc
);
2996 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2999 case QEMU_OPTION_drive
:
3000 if (drive_def(optarg
) == NULL
) {
3004 case QEMU_OPTION_set
:
3005 if (qemu_set_option(optarg
) != 0)
3008 case QEMU_OPTION_global
:
3009 if (qemu_global_option(optarg
) != 0)
3012 case QEMU_OPTION_mtdblock
:
3013 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
3015 case QEMU_OPTION_sd
:
3016 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
3018 case QEMU_OPTION_pflash
:
3019 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
3021 case QEMU_OPTION_snapshot
:
3023 Error
*blocker
= NULL
;
3025 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
3027 replay_add_blocker(blocker
);
3030 case QEMU_OPTION_numa
:
3031 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
3037 case QEMU_OPTION_display
:
3038 parse_display(optarg
);
3040 case QEMU_OPTION_nographic
:
3041 olist
= qemu_find_opts("machine");
3042 qemu_opts_parse_noisily(olist
, "graphics=off", false);
3044 dpy
.type
= DISPLAY_TYPE_NONE
;
3046 case QEMU_OPTION_curses
:
3047 #ifdef CONFIG_CURSES
3048 dpy
.type
= DISPLAY_TYPE_CURSES
;
3050 error_report("curses or iconv support is disabled");
3054 case QEMU_OPTION_portrait
:
3055 graphic_rotate
= 90;
3057 case QEMU_OPTION_rotate
:
3058 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
3059 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
3060 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
3061 error_report("only 90, 180, 270 deg rotation is available");
3065 case QEMU_OPTION_kernel
:
3066 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg
,
3069 case QEMU_OPTION_initrd
:
3070 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg
,
3073 case QEMU_OPTION_append
:
3074 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg
,
3077 case QEMU_OPTION_dtb
:
3078 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg
,
3081 case QEMU_OPTION_cdrom
:
3082 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
3084 case QEMU_OPTION_boot
:
3085 opts
= qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3091 case QEMU_OPTION_fda
:
3092 case QEMU_OPTION_fdb
:
3093 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
3096 case QEMU_OPTION_no_fd_bootchk
:
3099 case QEMU_OPTION_netdev
:
3101 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
3105 case QEMU_OPTION_nic
:
3107 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
3111 case QEMU_OPTION_net
:
3113 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
3117 #ifdef CONFIG_LIBISCSI
3118 case QEMU_OPTION_iscsi
:
3119 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3126 case QEMU_OPTION_audio_help
:
3127 audio_legacy_help();
3130 case QEMU_OPTION_audiodev
:
3131 audio_parse_option(optarg
);
3133 case QEMU_OPTION_soundhw
:
3134 select_soundhw (optarg
);
3139 case QEMU_OPTION_version
:
3144 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3151 case QEMU_OPTION_tpmdev
:
3152 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3157 case QEMU_OPTION_mempath
:
3160 case QEMU_OPTION_mem_prealloc
:
3169 case QEMU_OPTION_DFILTER
:
3170 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3172 case QEMU_OPTION_seed
:
3173 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3176 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3178 case QEMU_OPTION_gdb
:
3179 add_device_config(DEV_GDB
, optarg
);
3182 if (is_help_option(optarg
)) {
3183 list_data_dirs
= true;
3185 qemu_add_data_dir(optarg
);
3188 case QEMU_OPTION_bios
:
3189 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg
,
3192 case QEMU_OPTION_singlestep
:
3199 keyboard_layout
= optarg
;
3201 case QEMU_OPTION_vga
:
3210 w
= strtol(p
, (char **)&p
, 10);
3213 error_report("invalid resolution or depth");
3219 h
= strtol(p
, (char **)&p
, 10);
3224 depth
= strtol(p
, (char **)&p
, 10);
3225 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3226 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3227 depth
!= 24 && depth
!= 32)
3229 } else if (*p
== '\0') {
3230 depth
= graphic_depth
;
3237 graphic_depth
= depth
;
3240 case QEMU_OPTION_echr
:
3243 term_escape_char
= strtol(optarg
, &r
, 0);
3245 printf("Bad argument to echr\n");
3248 case QEMU_OPTION_monitor
:
3249 default_monitor
= 0;
3250 if (strncmp(optarg
, "none", 4)) {
3251 monitor_parse(optarg
, "readline", false);
3254 case QEMU_OPTION_qmp
:
3255 monitor_parse(optarg
, "control", false);
3256 default_monitor
= 0;
3258 case QEMU_OPTION_qmp_pretty
:
3259 monitor_parse(optarg
, "control", true);
3260 default_monitor
= 0;
3262 case QEMU_OPTION_mon
:
3263 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3268 default_monitor
= 0;
3270 case QEMU_OPTION_chardev
:
3271 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3277 case QEMU_OPTION_fsdev
:
3278 olist
= qemu_find_opts("fsdev");
3280 error_report("fsdev support is disabled");
3283 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3288 case QEMU_OPTION_virtfs
: {
3291 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3294 olist
= qemu_find_opts("virtfs");
3296 error_report("virtfs support is disabled");
3299 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3304 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3305 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3306 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3309 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3310 qemu_opts_id(opts
) ?:
3311 qemu_opt_get(opts
, "mount_tag"),
3314 error_report("duplicate or invalid fsdev id: %s",
3315 qemu_opt_get(opts
, "mount_tag"));
3319 writeout
= qemu_opt_get(opts
, "writeout");
3321 #ifdef CONFIG_SYNC_FILE_RANGE
3322 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3324 error_report("writeout=immediate not supported "
3325 "on this platform");
3329 qemu_opt_set(fsdev
, "fsdriver",
3330 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3331 path
= qemu_opt_get(opts
, "path");
3333 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3335 security_model
= qemu_opt_get(opts
, "security_model");
3336 if (security_model
) {
3337 qemu_opt_set(fsdev
, "security_model", security_model
,
3340 socket
= qemu_opt_get(opts
, "socket");
3342 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3344 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3346 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3349 qemu_opt_set_bool(fsdev
, "readonly",
3350 qemu_opt_get_bool(opts
, "readonly", 0),
3352 multidevs
= qemu_opt_get(opts
, "multidevs");
3354 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3356 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3358 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3359 qemu_opt_set(device
, "fsdev",
3360 qemu_opts_id(fsdev
), &error_abort
);
3361 qemu_opt_set(device
, "mount_tag",
3362 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3365 case QEMU_OPTION_serial
:
3366 add_device_config(DEV_SERIAL
, optarg
);
3368 if (strncmp(optarg
, "mon:", 4) == 0) {
3369 default_monitor
= 0;
3372 case QEMU_OPTION_watchdog
:
3374 error_report("only one watchdog option may be given");
3379 case QEMU_OPTION_watchdog_action
:
3380 if (select_watchdog_action(optarg
) == -1) {
3381 error_report("unknown -watchdog-action parameter");
3385 case QEMU_OPTION_parallel
:
3386 add_device_config(DEV_PARALLEL
, optarg
);
3387 default_parallel
= 0;
3388 if (strncmp(optarg
, "mon:", 4) == 0) {
3389 default_monitor
= 0;
3392 case QEMU_OPTION_debugcon
:
3393 add_device_config(DEV_DEBUGCON
, optarg
);
3395 case QEMU_OPTION_loadvm
:
3398 case QEMU_OPTION_full_screen
:
3399 dpy
.has_full_screen
= true;
3400 dpy
.full_screen
= true;
3402 case QEMU_OPTION_alt_grab
:
3405 case QEMU_OPTION_ctrl_grab
:
3408 case QEMU_OPTION_no_quit
:
3409 dpy
.has_window_close
= true;
3410 dpy
.window_close
= false;
3412 case QEMU_OPTION_sdl
:
3414 dpy
.type
= DISPLAY_TYPE_SDL
;
3417 error_report("SDL support is disabled");
3420 case QEMU_OPTION_pidfile
:
3423 case QEMU_OPTION_win2k_hack
:
3424 win2k_install_hack
= 1;
3426 case QEMU_OPTION_acpitable
:
3427 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3432 acpi_table_add(opts
, &error_fatal
);
3434 case QEMU_OPTION_smbios
:
3435 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3440 smbios_entry_add(opts
, &error_fatal
);
3442 case QEMU_OPTION_fwcfg
:
3443 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3449 case QEMU_OPTION_preconfig
:
3450 preconfig_exit_requested
= false;
3452 case QEMU_OPTION_enable_kvm
:
3453 olist
= qemu_find_opts("machine");
3454 qemu_opts_parse_noisily(olist
, "accel=kvm", false);
3457 case QEMU_OPTION_machine
:
3458 olist
= qemu_find_opts("machine");
3459 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3464 case QEMU_OPTION_no_kvm
:
3465 olist
= qemu_find_opts("machine");
3466 qemu_opts_parse_noisily(olist
, "accel=tcg", false);
3468 case QEMU_OPTION_accel
:
3469 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3471 optarg
= qemu_opt_get(accel_opts
, "accel");
3472 if (!optarg
|| is_help_option(optarg
)) {
3473 printf("Accelerators supported in QEMU binary:\n");
3474 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3476 for (el
= accel_list
; el
; el
= el
->next
) {
3477 gchar
*typename
= g_strdup(object_class_get_name(
3478 OBJECT_CLASS(el
->data
)));
3479 /* omit qtest which is used for tests only */
3480 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3481 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3482 gchar
**optname
= g_strsplit(typename
,
3483 ACCEL_CLASS_SUFFIX
, 0);
3484 printf("%s\n", optname
[0]);
3489 g_slist_free(accel_list
);
3492 if (optarg
&& strchr(optarg
, ':')) {
3493 error_report("Don't use ':' with -accel, "
3494 "use -M accel=... for now instead");
3498 case QEMU_OPTION_usb
:
3499 olist
= qemu_find_opts("machine");
3500 qemu_opts_parse_noisily(olist
, "usb=on", false);
3502 case QEMU_OPTION_usbdevice
:
3503 error_report("'-usbdevice' is deprecated, please use "
3504 "'-device usb-...' instead");
3505 olist
= qemu_find_opts("machine");
3506 qemu_opts_parse_noisily(olist
, "usb=on", false);
3507 add_device_config(DEV_USB
, optarg
);
3509 case QEMU_OPTION_device
:
3510 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3515 case QEMU_OPTION_smp
:
3516 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3521 case QEMU_OPTION_vnc
:
3522 vnc_parse(optarg
, &error_fatal
);
3524 case QEMU_OPTION_no_acpi
:
3527 case QEMU_OPTION_no_hpet
:
3530 case QEMU_OPTION_no_reboot
:
3533 case QEMU_OPTION_no_shutdown
:
3536 case QEMU_OPTION_show_cursor
:
3539 case QEMU_OPTION_uuid
:
3540 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3541 error_report("failed to parse UUID string: wrong format");
3544 qemu_uuid_set
= true;
3546 case QEMU_OPTION_option_rom
:
3547 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3548 error_report("too many option ROMs");
3551 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3556 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3557 option_rom
[nb_option_roms
].bootindex
=
3558 qemu_opt_get_number(opts
, "bootindex", -1);
3559 if (!option_rom
[nb_option_roms
].name
) {
3560 error_report("Option ROM file is not specified");
3565 case QEMU_OPTION_semihosting
:
3566 qemu_semihosting_enable();
3568 case QEMU_OPTION_semihosting_config
:
3569 if (qemu_semihosting_config_options(optarg
) != 0) {
3573 case QEMU_OPTION_name
:
3574 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3580 case QEMU_OPTION_prom_env
:
3581 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3582 error_report("too many prom variables");
3585 prom_envs
[nb_prom_envs
] = optarg
;
3588 case QEMU_OPTION_old_param
:
3591 case QEMU_OPTION_rtc
:
3592 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3598 case QEMU_OPTION_tb_size
:
3600 error_report("TCG is disabled");
3603 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3604 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg
);
3606 case QEMU_OPTION_icount
:
3607 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3613 case QEMU_OPTION_incoming
:
3615 runstate_set(RUN_STATE_INMIGRATE
);
3619 case QEMU_OPTION_only_migratable
:
3620 only_migratable
= 1;
3622 case QEMU_OPTION_nodefaults
:
3625 case QEMU_OPTION_xen_domid
:
3626 if (!(xen_available())) {
3627 error_report("Option not supported for this target");
3630 xen_domid
= atoi(optarg
);
3632 case QEMU_OPTION_xen_attach
:
3633 if (!(xen_available())) {
3634 error_report("Option not supported for this target");
3637 xen_mode
= XEN_ATTACH
;
3639 case QEMU_OPTION_xen_domid_restrict
:
3640 if (!(xen_available())) {
3641 error_report("Option not supported for this target");
3644 xen_domid_restrict
= true;
3646 case QEMU_OPTION_trace
:
3648 trace_file
= trace_opt_parse(optarg
);
3650 case QEMU_OPTION_plugin
:
3651 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3653 case QEMU_OPTION_readconfig
:
3655 int ret
= qemu_read_config_file(optarg
);
3657 error_report("read config %s: %s", optarg
,
3663 case QEMU_OPTION_spice
:
3664 olist
= qemu_find_opts("spice");
3666 error_report("spice support is disabled");
3669 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3675 case QEMU_OPTION_writeconfig
:
3678 if (strcmp(optarg
, "-") == 0) {
3681 fp
= fopen(optarg
, "w");
3683 error_report("open %s: %s", optarg
,
3688 qemu_config_write(fp
);
3694 case QEMU_OPTION_qtest
:
3695 qtest_chrdev
= optarg
;
3697 case QEMU_OPTION_qtest_log
:
3700 case QEMU_OPTION_sandbox
:
3701 olist
= qemu_find_opts("sandbox");
3703 #ifndef CONFIG_SECCOMP
3704 error_report("-sandbox support is not enabled "
3705 "in this QEMU binary");
3710 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3715 case QEMU_OPTION_add_fd
:
3717 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3723 error_report("File descriptor passing is disabled on this "
3728 case QEMU_OPTION_object
:
3729 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
3735 case QEMU_OPTION_realtime
:
3736 warn_report("'-realtime mlock=...' is deprecated, please use "
3737 "'-overcommit mem-lock=...' instead");
3738 opts
= qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3743 /* Don't override the -overcommit option if set */
3744 enable_mlock
= enable_mlock
||
3745 qemu_opt_get_bool(opts
, "mlock", true);
3747 case QEMU_OPTION_overcommit
:
3748 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3753 /* Don't override the -realtime option if set */
3754 enable_mlock
= enable_mlock
||
3755 qemu_opt_get_bool(opts
, "mem-lock", false);
3756 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3758 case QEMU_OPTION_msg
:
3759 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3764 configure_msg(opts
);
3766 case QEMU_OPTION_dump_vmstate
:
3767 if (vmstate_dump_file
) {
3768 error_report("only one '-dump-vmstate' "
3769 "option may be given");
3772 vmstate_dump_file
= fopen(optarg
, "w");
3773 if (vmstate_dump_file
== NULL
) {
3774 error_report("open %s: %s", optarg
, strerror(errno
));
3778 case QEMU_OPTION_enable_sync_profile
:
3781 case QEMU_OPTION_nouserconfig
:
3782 /* Nothing to be parsed here. Especially, do not error out below. */
3785 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3786 error_report("Option not supported in this build");
3793 * Clear error location left behind by the loop.
3794 * Best done right after the loop. Do not insert code here!
3798 user_register_global_props();
3800 replay_configure(icount_opts
);
3802 if (incoming
&& !preconfig_exit_requested
) {
3803 error_report("'preconfig' and 'incoming' options are "
3804 "mutually exclusive");
3808 configure_rtc(qemu_find_opts_singleton("rtc"));
3810 machine_class
= select_machine();
3811 object_set_machine_compat_props(machine_class
->compat_props
);
3813 set_memory_options(&ram_slots
, &maxram_size
, machine_class
);
3816 rcu_disable_atfork();
3818 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
3819 error_reportf_err(err
, "cannot create PID file: ");
3823 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
3824 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
3826 if (qemu_init_main_loop(&main_loop_err
)) {
3827 error_report_err(main_loop_err
);
3831 #ifdef CONFIG_SECCOMP
3832 olist
= qemu_find_opts_err("sandbox", NULL
);
3834 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
3838 qemu_opts_foreach(qemu_find_opts("name"),
3839 parse_name
, NULL
, &error_fatal
);
3842 qemu_opts_foreach(qemu_find_opts("add-fd"),
3843 parse_add_fd
, NULL
, &error_fatal
);
3845 qemu_opts_foreach(qemu_find_opts("add-fd"),
3846 cleanup_add_fd
, NULL
, &error_fatal
);
3849 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
3850 if (machine_help_func(qemu_get_machine_opts(), current_machine
)) {
3853 object_property_add_child(object_get_root(), "machine",
3854 OBJECT(current_machine
), &error_abort
);
3855 object_property_add_child(container_get(OBJECT(current_machine
),
3857 "sysbus", OBJECT(sysbus_get_default()),
3860 if (machine_class
->minimum_page_bits
) {
3861 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
3862 /* This would be a board error: specifying a minimum smaller than
3863 * a target's compile-time fixed setting.
3865 g_assert_not_reached();
3869 cpu_exec_init_all();
3871 if (machine_class
->hw_version
) {
3872 qemu_set_hw_version(machine_class
->hw_version
);
3875 if (cpu_option
&& is_help_option(cpu_option
)) {
3876 list_cpus(cpu_option
);
3880 if (!trace_init_backends()) {
3883 trace_init_file(trace_file
);
3885 /* Open the logfile at this point and set the log mask if necessary.
3888 qemu_set_log_filename(log_file
, &error_fatal
);
3893 mask
= qemu_str_to_log_mask(log_mask
);
3895 qemu_print_log_usage(stdout
);
3903 /* add configured firmware directories */
3904 dirs
= g_strsplit(CONFIG_QEMU_FIRMWAREPATH
, G_SEARCHPATH_SEPARATOR_S
, 0);
3905 for (i
= 0; dirs
[i
] != NULL
; i
++) {
3906 qemu_add_data_dir(dirs
[i
]);
3910 /* try to find datadir relative to the executable path */
3911 dir
= os_find_datadir();
3912 qemu_add_data_dir(dir
);
3915 /* add the datadir specified when building */
3916 qemu_add_data_dir(CONFIG_QEMU_DATADIR
);
3918 /* -L help lists the data directories and exits. */
3919 if (list_data_dirs
) {
3920 for (i
= 0; i
< data_dir_idx
; i
++) {
3921 printf("%s\n", data_dir
[i
]);
3926 /* machine_class: default to UP */
3927 machine_class
->max_cpus
= machine_class
->max_cpus
?: 1;
3928 machine_class
->min_cpus
= machine_class
->min_cpus
?: 1;
3929 machine_class
->default_cpus
= machine_class
->default_cpus
?: 1;
3931 /* default to machine_class->default_cpus */
3932 current_machine
->smp
.cpus
= machine_class
->default_cpus
;
3933 current_machine
->smp
.max_cpus
= machine_class
->default_cpus
;
3934 current_machine
->smp
.cores
= 1;
3935 current_machine
->smp
.threads
= 1;
3937 machine_class
->smp_parse(current_machine
,
3938 qemu_opts_find(qemu_find_opts("smp-opts"), NULL
));
3940 /* sanity-check smp_cpus and max_cpus against machine_class */
3941 if (current_machine
->smp
.cpus
< machine_class
->min_cpus
) {
3942 error_report("Invalid SMP CPUs %d. The min CPUs "
3943 "supported by machine '%s' is %d",
3944 current_machine
->smp
.cpus
,
3945 machine_class
->name
, machine_class
->min_cpus
);
3948 if (current_machine
->smp
.max_cpus
> machine_class
->max_cpus
) {
3949 error_report("Invalid SMP CPUs %d. The max CPUs "
3950 "supported by machine '%s' is %d",
3951 current_machine
->smp
.max_cpus
,
3952 machine_class
->name
, machine_class
->max_cpus
);
3957 * Get the default machine options from the machine if it is not already
3958 * specified either by the configuration file or by the command line.
3960 if (machine_class
->default_machine_opts
) {
3961 qemu_opts_set_defaults(qemu_find_opts("machine"),
3962 machine_class
->default_machine_opts
, 0);
3965 /* process plugin before CPUs are created, but once -smp has been parsed */
3966 if (qemu_plugin_load_list(&plugin_list
)) {
3970 qemu_opts_foreach(qemu_find_opts("device"),
3971 default_driver_check
, NULL
, NULL
);
3972 qemu_opts_foreach(qemu_find_opts("global"),
3973 default_driver_check
, NULL
, NULL
);
3975 if (!vga_model
&& !default_vga
) {
3976 vga_interface_type
= VGA_DEVICE
;
3978 if (!has_defaults
|| machine_class
->no_serial
) {
3981 if (!has_defaults
|| machine_class
->no_parallel
) {
3982 default_parallel
= 0;
3984 if (!has_defaults
|| machine_class
->no_floppy
) {
3987 if (!has_defaults
|| machine_class
->no_cdrom
) {
3990 if (!has_defaults
|| machine_class
->no_sdcard
) {
3993 if (!has_defaults
) {
3994 default_monitor
= 0;
3999 if (is_daemonized()) {
4000 if (!preconfig_exit_requested
) {
4001 error_report("'preconfig' and 'daemonize' options are "
4002 "mutually exclusive");
4006 /* According to documentation and historically, -nographic redirects
4007 * serial port, parallel port and monitor to stdio, which does not work
4008 * with -daemonize. We can redirect these to null instead, but since
4009 * -nographic is legacy, let's just error out.
4010 * We disallow -nographic only if all other ports are not redirected
4011 * explicitly, to not break existing legacy setups which uses
4012 * -nographic _and_ redirects all ports explicitly - this is valid
4013 * usage, -nographic is just a no-op in this case.
4016 && (default_parallel
|| default_serial
|| default_monitor
)) {
4017 error_report("-nographic cannot be used with -daemonize");
4020 #ifdef CONFIG_CURSES
4021 if (dpy
.type
== DISPLAY_TYPE_CURSES
) {
4022 error_report("curses display cannot be used with -daemonize");
4029 if (default_parallel
)
4030 add_device_config(DEV_PARALLEL
, "null");
4031 if (default_serial
&& default_monitor
) {
4032 add_device_config(DEV_SERIAL
, "mon:stdio");
4035 add_device_config(DEV_SERIAL
, "stdio");
4036 if (default_monitor
)
4037 monitor_parse("stdio", "readline", false);
4041 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
4042 if (default_parallel
)
4043 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
4044 if (default_monitor
)
4045 monitor_parse("vc:80Cx24C", "readline", false);
4048 #if defined(CONFIG_VNC)
4049 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
4053 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
4054 if (!qemu_display_find_default(&dpy
)) {
4055 dpy
.type
= DISPLAY_TYPE_NONE
;
4056 #if defined(CONFIG_VNC)
4057 vnc_parse("localhost:0,to=99,id=default", &error_abort
);
4061 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
4062 dpy
.type
= DISPLAY_TYPE_NONE
;
4065 if ((alt_grab
|| ctrl_grab
) && dpy
.type
!= DISPLAY_TYPE_SDL
) {
4066 error_report("-alt-grab and -ctrl-grab are only valid "
4067 "for SDL, ignoring option");
4069 if (dpy
.has_window_close
&&
4070 (dpy
.type
!= DISPLAY_TYPE_GTK
&& dpy
.type
!= DISPLAY_TYPE_SDL
)) {
4071 error_report("-no-quit is only valid for GTK and SDL, "
4075 qemu_display_early_init(&dpy
);
4076 qemu_console_early_init();
4078 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
4079 #if defined(CONFIG_OPENGL)
4080 error_report("OpenGL is not supported by the display");
4082 error_report("OpenGL support is disabled");
4090 qemu_opts_foreach(qemu_find_opts("object"),
4091 user_creatable_add_opts_foreach
,
4092 object_create_initial
, &error_fatal
);
4094 qemu_opts_foreach(qemu_find_opts("chardev"),
4095 chardev_init_func
, NULL
, &error_fatal
);
4096 /* now chardevs have been created we may have semihosting to connect */
4097 qemu_semihosting_connect_chardevs();
4099 #ifdef CONFIG_VIRTFS
4100 qemu_opts_foreach(qemu_find_opts("fsdev"),
4101 fsdev_init_func
, NULL
, &error_fatal
);
4104 if (qemu_opts_foreach(qemu_find_opts("device"),
4105 device_help_func
, NULL
, NULL
)) {
4110 * Note: we need to create block backends before
4111 * machine_set_property(), so machine properties can refer to
4114 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
4116 machine_opts
= qemu_get_machine_opts();
4117 qemu_opt_foreach(machine_opts
, machine_set_property
, current_machine
,
4119 current_machine
->ram_size
= ram_size
;
4120 current_machine
->maxram_size
= maxram_size
;
4121 current_machine
->ram_slots
= ram_slots
;
4124 * Note: uses machine properties such as kernel-irqchip, must run
4125 * after machine_set_property().
4127 configure_accelerators(argv
[0]);
4130 * Beware, QOM objects created before this point miss global and
4131 * compat properties.
4133 * Global properties get set up by qdev_prop_register_global(),
4134 * called from user_register_global_props(), and certain option
4135 * desugaring. Also in CPU feature desugaring (buried in
4136 * parse_cpu_option()), which happens below this point, but may
4137 * only target the CPU type, which can only be created after
4138 * parse_cpu_option() returned the type.
4140 * Machine compat properties: object_set_machine_compat_props().
4141 * Accelerator compat props: object_set_accelerator_compat_props(),
4142 * called from configure_accelerator().
4145 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
4146 error_report("Machine type '%s' is deprecated: %s",
4147 machine_class
->name
, machine_class
->deprecation_reason
);
4151 * Note: creates a QOM object, must run only after global and
4152 * compat properties have been set up.
4154 migration_object_init();
4157 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
4160 machine_opts
= qemu_get_machine_opts();
4161 kernel_filename
= qemu_opt_get(machine_opts
, "kernel");
4162 initrd_filename
= qemu_opt_get(machine_opts
, "initrd");
4163 kernel_cmdline
= qemu_opt_get(machine_opts
, "append");
4164 bios_name
= qemu_opt_get(machine_opts
, "firmware");
4166 opts
= qemu_opts_find(qemu_find_opts("boot-opts"), NULL
);
4168 boot_order
= qemu_opt_get(opts
, "order");
4170 validate_bootdevices(boot_order
, &error_fatal
);
4173 boot_once
= qemu_opt_get(opts
, "once");
4175 validate_bootdevices(boot_once
, &error_fatal
);
4178 boot_menu
= qemu_opt_get_bool(opts
, "menu", boot_menu
);
4179 boot_strict
= qemu_opt_get_bool(opts
, "strict", false);
4183 boot_order
= machine_class
->default_boot_order
;
4186 if (!kernel_cmdline
) {
4187 kernel_cmdline
= "";
4188 current_machine
->kernel_cmdline
= (char *)kernel_cmdline
;
4191 linux_boot
= (kernel_filename
!= NULL
);
4193 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4194 error_report("-append only allowed with -kernel option");
4198 if (!linux_boot
&& initrd_filename
!= NULL
) {
4199 error_report("-initrd only allowed with -kernel option");
4203 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename
) {
4204 /* fall back to the -kernel/-append */
4205 semihosting_arg_fallback(kernel_filename
, kernel_cmdline
);
4208 /* spice needs the timers to be initialized by this point */
4214 QemuOptsList
*net
= qemu_find_opts("net");
4215 qemu_opts_set(net
, NULL
, "type", "nic", &error_abort
);
4217 qemu_opts_set(net
, NULL
, "type", "user", &error_abort
);
4221 if (net_init_clients(&err
) < 0) {
4222 error_report_err(err
);
4226 qemu_opts_foreach(qemu_find_opts("object"),
4227 user_creatable_add_opts_foreach
,
4228 object_create_delayed
, &error_fatal
);
4232 if (!xen_enabled()) {
4233 /* On 32-bit hosts, QEMU is limited by virtual address space */
4234 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
4235 error_report("at most 2047 MB RAM can be simulated");
4242 dirty_bitmap_mig_init();
4244 qemu_opts_foreach(qemu_find_opts("mon"),
4245 mon_init_func
, NULL
, &error_fatal
);
4247 /* connect semihosting console input if requested */
4248 qemu_semihosting_console_init();
4250 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4252 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4254 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4257 /* If no default VGA is requested, the default is "none". */
4259 vga_model
= get_default_vga_model(machine_class
);
4262 select_vgahw(machine_class
, vga_model
);
4266 i
= select_watchdog(watchdog
);
4268 exit (i
== 1 ? 1 : 0);
4271 /* This checkpoint is required by replay to separate prior clock
4272 reading from the other reads, because timer polling functions query
4273 clock values from the log. */
4274 replay_checkpoint(CHECKPOINT_INIT
);
4275 qdev_machine_init();
4277 current_machine
->boot_order
= boot_order
;
4279 /* parse features once if machine provides default cpu_type */
4280 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
4282 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
4284 parse_numa_opts(current_machine
);
4286 /* do monitor/qmp handling at preconfig state if requested */
4289 audio_init_audiodevs();
4291 /* from here on runstate is RUN_STATE_PRELAUNCH */
4292 machine_run_board_init(current_machine
);
4298 if (hax_enabled()) {
4302 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4303 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
4305 /* init USB devices */
4306 if (machine_usb(current_machine
)) {
4307 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4311 /* init generic devices */
4312 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
4313 qemu_opts_foreach(qemu_find_opts("device"),
4314 device_init_func
, NULL
, &error_fatal
);
4316 cpu_synchronize_all_post_init();
4318 rom_reset_order_override();
4320 /* Did we create any drives that we failed to create a device for? */
4321 drive_check_orphaned();
4323 /* Don't warn about the default network setup that you get if
4324 * no command line -net or -netdev options are specified. There
4325 * are two cases that we would otherwise complain about:
4326 * (1) board doesn't support a NIC but the implicit "-net nic"
4328 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4329 * sets up a nic that isn't connected to anything.
4331 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
4332 net_check_clients();
4336 qemu_boot_set(boot_once
, &error_fatal
);
4337 qemu_register_reset(restore_boot_order
, g_strdup(boot_order
));
4340 /* init local displays */
4341 ds
= init_displaystate();
4342 qemu_display_init(ds
, &dpy
);
4344 /* must be after terminal init, SDL library changes signal handlers */
4345 os_setup_signal_handling();
4347 /* init remote displays */
4349 qemu_opts_foreach(qemu_find_opts("vnc"),
4350 vnc_init_func
, NULL
, &error_fatal
);
4354 qemu_spice_display_init();
4357 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
4361 qdev_machine_creation_done();
4363 /* TODO: once all bus devices are qdevified, this should be done
4364 * when bus is created by qdev.c */
4365 qemu_register_reset(qbus_reset_all_fn
, sysbus_get_default());
4366 qemu_run_machine_init_done_notifiers();
4368 if (rom_check_and_register_reset() != 0) {
4369 error_report("rom check and register reset failed");
4375 /* This checkpoint is required by replay to separate prior clock
4376 reading from the other reads, because timer polling functions query
4377 clock values from the log. */
4378 replay_checkpoint(CHECKPOINT_RESET
);
4379 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
4380 register_global_state();
4382 Error
*local_err
= NULL
;
4383 if (load_snapshot(loadvm
, &local_err
) < 0) {
4384 error_report_err(local_err
);
4389 if (replay_mode
!= REPLAY_MODE_NONE
) {
4390 replay_vmstate_init();
4393 qdev_prop_check_globals();
4394 if (vmstate_dump_file
) {
4396 dump_vmstate_json_to_file(vmstate_dump_file
);
4401 Error
*local_err
= NULL
;
4402 qemu_start_incoming_migration(incoming
, &local_err
);
4404 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
4407 } else if (autostart
) {
4411 accel_setup_post(current_machine
);
4416 gdbserver_cleanup();
4419 * cleaning up the migration object cancels any existing migration
4420 * try to do this early so that it also stops using devices.
4422 migration_shutdown();
4425 * We must cancel all block jobs while the block layer is drained,
4426 * or cancelling will be affected by throttling and thus may block
4427 * for an extended period of time.
4428 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4429 * it in the drained section.
4430 * We do not need to end this section, because we do not want any
4431 * requests happening from here on anyway.
4433 bdrv_drain_all_begin();
4435 /* No more vcpu or device emulation activity beyond this point */
4439 job_cancel_sync_all();
4444 /* vhost-user must be cleaned up before chardevs. */
4450 user_creatable_cleanup();
4451 /* TODO: unref root container, check all devices are ok */