4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qapi/error.h"
31 #include "qemu-version.h"
32 #include "qemu/cutils.h"
33 #include "qemu/help_option.h"
34 #include "qemu/uuid.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
37 #include "sysemu/seccomp.h"
38 #include "sysemu/tcg.h"
39 #include "sysemu/xen.h"
41 #include "qemu/error-report.h"
42 #include "qemu/sockets.h"
43 #include "sysemu/accel.h"
45 #include "hw/isa/isa.h"
46 #include "hw/scsi/scsi.h"
47 #include "hw/display/vga.h"
48 #include "sysemu/watchdog.h"
49 #include "hw/firmware/smbios.h"
50 #include "hw/acpi/acpi.h"
51 #include "hw/xen/xen.h"
52 #include "hw/loader.h"
53 #include "monitor/qdev.h"
55 #include "net/slirp.h"
56 #include "monitor/monitor.h"
57 #include "ui/console.h"
59 #include "sysemu/sysemu.h"
60 #include "sysemu/numa.h"
61 #include "sysemu/hostmem.h"
62 #include "exec/gdbstub.h"
63 #include "qemu/timer.h"
64 #include "chardev/char.h"
65 #include "qemu/bitmap.h"
67 #include "sysemu/blockdev.h"
68 #include "hw/block/block.h"
69 #include "migration/misc.h"
70 #include "migration/snapshot.h"
71 #include "migration/global_state.h"
72 #include "sysemu/tpm.h"
73 #include "sysemu/dma.h"
74 #include "hw/audio/soundhw.h"
75 #include "audio/audio.h"
76 #include "sysemu/cpus.h"
77 #include "migration/colo.h"
78 #include "migration/postcopy-ram.h"
79 #include "sysemu/kvm.h"
80 #include "sysemu/hax.h"
81 #include "qapi/qobject-input-visitor.h"
82 #include "qemu/option.h"
83 #include "qemu/config-file.h"
84 #include "qemu-options.h"
85 #include "qemu/main-loop.h"
87 #include "fsdev/qemu-fsdev.h"
89 #include "sysemu/qtest.h"
91 #include "disas/disas.h"
93 #include "trace-root.h"
94 #include "trace/control.h"
95 #include "qemu/plugin.h"
96 #include "qemu/queue.h"
97 #include "sysemu/arch_init.h"
99 #include "ui/qemu-spice.h"
100 #include "qapi/string-input-visitor.h"
101 #include "qapi/opts-visitor.h"
102 #include "qapi/clone-visitor.h"
103 #include "qom/object_interfaces.h"
104 #include "hw/semihosting/semihost.h"
105 #include "crypto/init.h"
106 #include "sysemu/replay.h"
107 #include "qapi/qapi-events-run-state.h"
108 #include "qapi/qapi-visit-block-core.h"
109 #include "qapi/qapi-visit-ui.h"
110 #include "qapi/qapi-commands-block-core.h"
111 #include "qapi/qapi-commands-run-state.h"
112 #include "qapi/qapi-commands-ui.h"
113 #include "qapi/qmp/qerror.h"
114 #include "sysemu/iothread.h"
115 #include "qemu/guest-random.h"
117 #define MAX_VIRTIO_CONSOLES 1
119 static const char *data_dir
[16];
120 static int data_dir_idx
;
121 const char *bios_name
= NULL
;
122 enum vga_retrace_method vga_retrace_method
= VGA_RETRACE_DUMB
;
124 const char* keyboard_layout
= NULL
;
126 bool enable_mlock
= false;
127 bool enable_cpu_pm
= false;
129 NICInfo nd_table
[MAX_NICS
];
135 } rtc_base_type
= RTC_BASE_UTC
;
136 static time_t rtc_ref_start_datetime
;
137 static int rtc_realtime_clock_offset
; /* used only with QEMU_CLOCK_REALTIME */
138 static int rtc_host_datetime_offset
= -1; /* valid & used only with
140 QEMUClockType rtc_clock
;
141 int vga_interface_type
= VGA_NONE
;
142 static DisplayOptions dpy
;
143 static int num_serial_hds
;
144 static Chardev
**serial_hds
;
145 Chardev
*parallel_hds
[MAX_PARALLEL_PORTS
];
146 int win2k_install_hack
= 0;
150 static int no_reboot
;
152 int graphic_rotate
= 0;
153 const char *watchdog
;
154 QEMUOptionRom option_rom
[MAX_OPTION_ROMS
];
157 const char *qemu_name
;
160 unsigned int nb_prom_envs
= 0;
161 const char *prom_envs
[MAX_PROM_ENVS
];
164 uint8_t *boot_splash_filedata
;
165 int only_migratable
; /* turn it off unless user states otherwise */
166 bool wakeup_suspend_enabled
;
168 int icount_align_option
;
170 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
171 * little-endian "wire format" described in the SMBIOS 2.6 specification.
176 static NotifierList exit_notifiers
=
177 NOTIFIER_LIST_INITIALIZER(exit_notifiers
);
179 static NotifierList machine_init_done_notifiers
=
180 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
183 enum xen_mode xen_mode
= XEN_EMULATE
;
184 bool xen_domid_restrict
;
186 static int has_defaults
= 1;
187 static int default_serial
= 1;
188 static int default_parallel
= 1;
189 static int default_monitor
= 1;
190 static int default_floppy
= 1;
191 static int default_cdrom
= 1;
192 static int default_sdcard
= 1;
193 static int default_vga
= 1;
194 static int default_net
= 1;
200 { .driver
= "isa-serial", .flag
= &default_serial
},
201 { .driver
= "isa-parallel", .flag
= &default_parallel
},
202 { .driver
= "isa-fdc", .flag
= &default_floppy
},
203 { .driver
= "floppy", .flag
= &default_floppy
},
204 { .driver
= "ide-cd", .flag
= &default_cdrom
},
205 { .driver
= "ide-hd", .flag
= &default_cdrom
},
206 { .driver
= "ide-drive", .flag
= &default_cdrom
},
207 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
208 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
209 { .driver
= "VGA", .flag
= &default_vga
},
210 { .driver
= "isa-vga", .flag
= &default_vga
},
211 { .driver
= "cirrus-vga", .flag
= &default_vga
},
212 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
213 { .driver
= "vmware-svga", .flag
= &default_vga
},
214 { .driver
= "qxl-vga", .flag
= &default_vga
},
215 { .driver
= "virtio-vga", .flag
= &default_vga
},
216 { .driver
= "ati-vga", .flag
= &default_vga
},
217 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
220 static QemuOptsList qemu_rtc_opts
= {
222 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
227 .type
= QEMU_OPT_STRING
,
230 .type
= QEMU_OPT_STRING
,
233 .type
= QEMU_OPT_STRING
,
235 { /* end of list */ }
239 static QemuOptsList qemu_option_rom_opts
= {
240 .name
= "option-rom",
241 .implied_opt_name
= "romfile",
242 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
246 .type
= QEMU_OPT_NUMBER
,
249 .type
= QEMU_OPT_STRING
,
251 { /* end of list */ }
255 static QemuOptsList qemu_machine_opts
= {
257 .implied_opt_name
= "type",
259 .head
= QTAILQ_HEAD_INITIALIZER(qemu_machine_opts
.head
),
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting machine properties
270 static QemuOptsList qemu_accel_opts
= {
272 .implied_opt_name
= "accel",
273 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
276 * no elements => accept any
277 * sanity checking will happen later
278 * when setting accelerator properties
284 static QemuOptsList qemu_boot_opts
= {
286 .implied_opt_name
= "order",
288 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
292 .type
= QEMU_OPT_STRING
,
295 .type
= QEMU_OPT_STRING
,
298 .type
= QEMU_OPT_BOOL
,
301 .type
= QEMU_OPT_STRING
,
303 .name
= "splash-time",
304 .type
= QEMU_OPT_NUMBER
,
306 .name
= "reboot-timeout",
307 .type
= QEMU_OPT_NUMBER
,
310 .type
= QEMU_OPT_BOOL
,
316 static QemuOptsList qemu_add_fd_opts
= {
318 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
322 .type
= QEMU_OPT_NUMBER
,
323 .help
= "file descriptor of which a duplicate is added to fd set",
326 .type
= QEMU_OPT_NUMBER
,
327 .help
= "ID of the fd set to add fd to",
330 .type
= QEMU_OPT_STRING
,
331 .help
= "free-form string used to describe fd",
333 { /* end of list */ }
337 static QemuOptsList qemu_object_opts
= {
339 .implied_opt_name
= "qom-type",
340 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
346 static QemuOptsList qemu_tpmdev_opts
= {
348 .implied_opt_name
= "type",
349 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
351 /* options are defined in the TPM backends */
352 { /* end of list */ }
356 static QemuOptsList qemu_realtime_opts
= {
358 .head
= QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts
.head
),
362 .type
= QEMU_OPT_BOOL
,
364 { /* end of list */ }
368 static QemuOptsList qemu_overcommit_opts
= {
369 .name
= "overcommit",
370 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
374 .type
= QEMU_OPT_BOOL
,
378 .type
= QEMU_OPT_BOOL
,
380 { /* end of list */ }
384 static QemuOptsList qemu_msg_opts
= {
386 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
390 .type
= QEMU_OPT_BOOL
,
392 { /* end of list */ }
396 static QemuOptsList qemu_name_opts
= {
398 .implied_opt_name
= "guest",
400 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
404 .type
= QEMU_OPT_STRING
,
405 .help
= "Sets the name of the guest.\n"
406 "This name will be displayed in the SDL window caption.\n"
407 "The name will also be used for the VNC server",
410 .type
= QEMU_OPT_STRING
,
411 .help
= "Sets the name of the QEMU process, as shown in top etc",
413 .name
= "debug-threads",
414 .type
= QEMU_OPT_BOOL
,
415 .help
= "When enabled, name the individual threads; defaults off.\n"
416 "NOTE: The thread names are for debugging and not a\n"
419 { /* End of list */ }
423 static QemuOptsList qemu_mem_opts
= {
425 .implied_opt_name
= "size",
426 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
431 .type
= QEMU_OPT_SIZE
,
435 .type
= QEMU_OPT_NUMBER
,
439 .type
= QEMU_OPT_SIZE
,
441 { /* end of list */ }
445 static QemuOptsList qemu_icount_opts
= {
447 .implied_opt_name
= "shift",
449 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
453 .type
= QEMU_OPT_STRING
,
456 .type
= QEMU_OPT_BOOL
,
459 .type
= QEMU_OPT_BOOL
,
462 .type
= QEMU_OPT_STRING
,
465 .type
= QEMU_OPT_STRING
,
467 .name
= "rrsnapshot",
468 .type
= QEMU_OPT_STRING
,
470 { /* end of list */ }
474 static QemuOptsList qemu_fw_cfg_opts
= {
476 .implied_opt_name
= "name",
477 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
481 .type
= QEMU_OPT_STRING
,
482 .help
= "Sets the fw_cfg name of the blob to be inserted",
485 .type
= QEMU_OPT_STRING
,
486 .help
= "Sets the name of the file from which "
487 "the fw_cfg blob will be loaded",
490 .type
= QEMU_OPT_STRING
,
491 .help
= "Sets content of the blob to be inserted from a string",
494 .type
= QEMU_OPT_STRING
,
495 .help
= "Sets id of the object generating the fw_cfg blob "
498 { /* end of list */ }
503 * Get machine options
505 * Returns: machine options (never null).
507 QemuOpts
*qemu_get_machine_opts(void)
509 return qemu_find_opts_singleton("machine");
512 const char *qemu_get_vm_name(void)
517 static void res_free(void)
519 g_free(boot_splash_filedata
);
520 boot_splash_filedata
= NULL
;
523 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
525 const char *driver
= qemu_opt_get(opts
, "driver");
530 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
531 if (strcmp(default_list
[i
].driver
, driver
) != 0)
533 *(default_list
[i
].flag
) = 0;
538 /***********************************************************/
541 static RunState current_run_state
= RUN_STATE_PRECONFIG
;
543 /* We use RUN_STATE__MAX but any invalid value will do */
544 static RunState vmstop_requested
= RUN_STATE__MAX
;
545 static QemuMutex vmstop_lock
;
550 } RunStateTransition
;
552 static const RunStateTransition runstate_transitions_def
[] = {
554 { RUN_STATE_PRECONFIG
, RUN_STATE_PRELAUNCH
},
555 /* Early switch to inmigrate state to allow -incoming CLI option work
556 * as it used to. TODO: delay actual switching to inmigrate state to
557 * the point after machine is built and remove this hack.
559 { RUN_STATE_PRECONFIG
, RUN_STATE_INMIGRATE
},
561 { RUN_STATE_DEBUG
, RUN_STATE_RUNNING
},
562 { RUN_STATE_DEBUG
, RUN_STATE_FINISH_MIGRATE
},
563 { RUN_STATE_DEBUG
, RUN_STATE_PRELAUNCH
},
565 { RUN_STATE_INMIGRATE
, RUN_STATE_INTERNAL_ERROR
},
566 { RUN_STATE_INMIGRATE
, RUN_STATE_IO_ERROR
},
567 { RUN_STATE_INMIGRATE
, RUN_STATE_PAUSED
},
568 { RUN_STATE_INMIGRATE
, RUN_STATE_RUNNING
},
569 { RUN_STATE_INMIGRATE
, RUN_STATE_SHUTDOWN
},
570 { RUN_STATE_INMIGRATE
, RUN_STATE_SUSPENDED
},
571 { RUN_STATE_INMIGRATE
, RUN_STATE_WATCHDOG
},
572 { RUN_STATE_INMIGRATE
, RUN_STATE_GUEST_PANICKED
},
573 { RUN_STATE_INMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
574 { RUN_STATE_INMIGRATE
, RUN_STATE_PRELAUNCH
},
575 { RUN_STATE_INMIGRATE
, RUN_STATE_POSTMIGRATE
},
576 { RUN_STATE_INMIGRATE
, RUN_STATE_COLO
},
578 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PAUSED
},
579 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_FINISH_MIGRATE
},
580 { RUN_STATE_INTERNAL_ERROR
, RUN_STATE_PRELAUNCH
},
582 { RUN_STATE_IO_ERROR
, RUN_STATE_RUNNING
},
583 { RUN_STATE_IO_ERROR
, RUN_STATE_FINISH_MIGRATE
},
584 { RUN_STATE_IO_ERROR
, RUN_STATE_PRELAUNCH
},
586 { RUN_STATE_PAUSED
, RUN_STATE_RUNNING
},
587 { RUN_STATE_PAUSED
, RUN_STATE_FINISH_MIGRATE
},
588 { RUN_STATE_PAUSED
, RUN_STATE_POSTMIGRATE
},
589 { RUN_STATE_PAUSED
, RUN_STATE_PRELAUNCH
},
590 { RUN_STATE_PAUSED
, RUN_STATE_COLO
},
592 { RUN_STATE_POSTMIGRATE
, RUN_STATE_RUNNING
},
593 { RUN_STATE_POSTMIGRATE
, RUN_STATE_FINISH_MIGRATE
},
594 { RUN_STATE_POSTMIGRATE
, RUN_STATE_PRELAUNCH
},
596 { RUN_STATE_PRELAUNCH
, RUN_STATE_RUNNING
},
597 { RUN_STATE_PRELAUNCH
, RUN_STATE_FINISH_MIGRATE
},
598 { RUN_STATE_PRELAUNCH
, RUN_STATE_INMIGRATE
},
600 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_RUNNING
},
601 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PAUSED
},
602 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_POSTMIGRATE
},
603 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_PRELAUNCH
},
604 { RUN_STATE_FINISH_MIGRATE
, RUN_STATE_COLO
},
606 { RUN_STATE_RESTORE_VM
, RUN_STATE_RUNNING
},
607 { RUN_STATE_RESTORE_VM
, RUN_STATE_PRELAUNCH
},
609 { RUN_STATE_COLO
, RUN_STATE_RUNNING
},
611 { RUN_STATE_RUNNING
, RUN_STATE_DEBUG
},
612 { RUN_STATE_RUNNING
, RUN_STATE_INTERNAL_ERROR
},
613 { RUN_STATE_RUNNING
, RUN_STATE_IO_ERROR
},
614 { RUN_STATE_RUNNING
, RUN_STATE_PAUSED
},
615 { RUN_STATE_RUNNING
, RUN_STATE_FINISH_MIGRATE
},
616 { RUN_STATE_RUNNING
, RUN_STATE_RESTORE_VM
},
617 { RUN_STATE_RUNNING
, RUN_STATE_SAVE_VM
},
618 { RUN_STATE_RUNNING
, RUN_STATE_SHUTDOWN
},
619 { RUN_STATE_RUNNING
, RUN_STATE_WATCHDOG
},
620 { RUN_STATE_RUNNING
, RUN_STATE_GUEST_PANICKED
},
621 { RUN_STATE_RUNNING
, RUN_STATE_COLO
},
623 { RUN_STATE_SAVE_VM
, RUN_STATE_RUNNING
},
625 { RUN_STATE_SHUTDOWN
, RUN_STATE_PAUSED
},
626 { RUN_STATE_SHUTDOWN
, RUN_STATE_FINISH_MIGRATE
},
627 { RUN_STATE_SHUTDOWN
, RUN_STATE_PRELAUNCH
},
629 { RUN_STATE_DEBUG
, RUN_STATE_SUSPENDED
},
630 { RUN_STATE_RUNNING
, RUN_STATE_SUSPENDED
},
631 { RUN_STATE_SUSPENDED
, RUN_STATE_RUNNING
},
632 { RUN_STATE_SUSPENDED
, RUN_STATE_FINISH_MIGRATE
},
633 { RUN_STATE_SUSPENDED
, RUN_STATE_PRELAUNCH
},
634 { RUN_STATE_SUSPENDED
, RUN_STATE_COLO
},
636 { RUN_STATE_WATCHDOG
, RUN_STATE_RUNNING
},
637 { RUN_STATE_WATCHDOG
, RUN_STATE_FINISH_MIGRATE
},
638 { RUN_STATE_WATCHDOG
, RUN_STATE_PRELAUNCH
},
639 { RUN_STATE_WATCHDOG
, RUN_STATE_COLO
},
641 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_RUNNING
},
642 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_FINISH_MIGRATE
},
643 { RUN_STATE_GUEST_PANICKED
, RUN_STATE_PRELAUNCH
},
645 { RUN_STATE__MAX
, RUN_STATE__MAX
},
648 static bool runstate_valid_transitions
[RUN_STATE__MAX
][RUN_STATE__MAX
];
650 bool runstate_check(RunState state
)
652 return current_run_state
== state
;
655 bool runstate_store(char *str
, size_t size
)
657 const char *state
= RunState_str(current_run_state
);
658 size_t len
= strlen(state
) + 1;
663 memcpy(str
, state
, len
);
667 static void runstate_init(void)
669 const RunStateTransition
*p
;
671 memset(&runstate_valid_transitions
, 0, sizeof(runstate_valid_transitions
));
672 for (p
= &runstate_transitions_def
[0]; p
->from
!= RUN_STATE__MAX
; p
++) {
673 runstate_valid_transitions
[p
->from
][p
->to
] = true;
676 qemu_mutex_init(&vmstop_lock
);
679 /* This function will abort() on invalid state transitions */
680 void runstate_set(RunState new_state
)
682 assert(new_state
< RUN_STATE__MAX
);
684 trace_runstate_set(current_run_state
, RunState_str(current_run_state
),
685 new_state
, RunState_str(new_state
));
687 if (current_run_state
== new_state
) {
691 if (!runstate_valid_transitions
[current_run_state
][new_state
]) {
692 error_report("invalid runstate transition: '%s' -> '%s'",
693 RunState_str(current_run_state
),
694 RunState_str(new_state
));
698 current_run_state
= new_state
;
701 int runstate_is_running(void)
703 return runstate_check(RUN_STATE_RUNNING
);
706 bool runstate_needs_reset(void)
708 return runstate_check(RUN_STATE_INTERNAL_ERROR
) ||
709 runstate_check(RUN_STATE_SHUTDOWN
);
712 StatusInfo
*qmp_query_status(Error
**errp
)
714 StatusInfo
*info
= g_malloc0(sizeof(*info
));
716 info
->running
= runstate_is_running();
717 info
->singlestep
= singlestep
;
718 info
->status
= current_run_state
;
723 bool qemu_vmstop_requested(RunState
*r
)
725 qemu_mutex_lock(&vmstop_lock
);
726 *r
= vmstop_requested
;
727 vmstop_requested
= RUN_STATE__MAX
;
728 qemu_mutex_unlock(&vmstop_lock
);
729 return *r
< RUN_STATE__MAX
;
732 void qemu_system_vmstop_request_prepare(void)
734 qemu_mutex_lock(&vmstop_lock
);
737 void qemu_system_vmstop_request(RunState state
)
739 vmstop_requested
= state
;
740 qemu_mutex_unlock(&vmstop_lock
);
744 /***********************************************************/
745 /* RTC reference time/date access */
746 static time_t qemu_ref_timedate(QEMUClockType clock
)
748 time_t value
= qemu_clock_get_ms(clock
) / 1000;
750 case QEMU_CLOCK_REALTIME
:
751 value
-= rtc_realtime_clock_offset
;
753 case QEMU_CLOCK_VIRTUAL
:
754 value
+= rtc_ref_start_datetime
;
756 case QEMU_CLOCK_HOST
:
757 if (rtc_base_type
== RTC_BASE_DATETIME
) {
758 value
-= rtc_host_datetime_offset
;
767 void qemu_get_timedate(struct tm
*tm
, int offset
)
769 time_t ti
= qemu_ref_timedate(rtc_clock
);
773 switch (rtc_base_type
) {
774 case RTC_BASE_DATETIME
:
778 case RTC_BASE_LOCALTIME
:
779 localtime_r(&ti
, tm
);
784 int qemu_timedate_diff(struct tm
*tm
)
788 switch (rtc_base_type
) {
789 case RTC_BASE_DATETIME
:
791 seconds
= mktimegm(tm
);
793 case RTC_BASE_LOCALTIME
:
796 tmp
.tm_isdst
= -1; /* use timezone to figure it out */
797 seconds
= mktime(&tmp
);
804 return seconds
- qemu_ref_timedate(QEMU_CLOCK_HOST
);
807 static void configure_rtc_base_datetime(const char *startdate
)
809 time_t rtc_start_datetime
;
812 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d", &tm
.tm_year
, &tm
.tm_mon
,
813 &tm
.tm_mday
, &tm
.tm_hour
, &tm
.tm_min
, &tm
.tm_sec
) == 6) {
815 } else if (sscanf(startdate
, "%d-%d-%d",
816 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
) == 3) {
825 rtc_start_datetime
= mktimegm(&tm
);
826 if (rtc_start_datetime
== -1) {
828 error_report("invalid datetime format");
829 error_printf("valid formats: "
830 "'2006-06-17T16:01:21' or '2006-06-17'\n");
833 rtc_host_datetime_offset
= rtc_ref_start_datetime
- rtc_start_datetime
;
834 rtc_ref_start_datetime
= rtc_start_datetime
;
837 static void configure_rtc(QemuOpts
*opts
)
842 rtc_clock
= QEMU_CLOCK_HOST
;
843 rtc_ref_start_datetime
= qemu_clock_get_ms(QEMU_CLOCK_HOST
) / 1000;
844 rtc_realtime_clock_offset
= qemu_clock_get_ms(QEMU_CLOCK_REALTIME
) / 1000;
846 value
= qemu_opt_get(opts
, "base");
848 if (!strcmp(value
, "utc")) {
849 rtc_base_type
= RTC_BASE_UTC
;
850 } else if (!strcmp(value
, "localtime")) {
851 Error
*blocker
= NULL
;
852 rtc_base_type
= RTC_BASE_LOCALTIME
;
853 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
854 "-rtc base=localtime");
855 replay_add_blocker(blocker
);
857 rtc_base_type
= RTC_BASE_DATETIME
;
858 configure_rtc_base_datetime(value
);
861 value
= qemu_opt_get(opts
, "clock");
863 if (!strcmp(value
, "host")) {
864 rtc_clock
= QEMU_CLOCK_HOST
;
865 } else if (!strcmp(value
, "rt")) {
866 rtc_clock
= QEMU_CLOCK_REALTIME
;
867 } else if (!strcmp(value
, "vm")) {
868 rtc_clock
= QEMU_CLOCK_VIRTUAL
;
870 error_report("invalid option value '%s'", value
);
874 value
= qemu_opt_get(opts
, "driftfix");
876 if (!strcmp(value
, "slew")) {
877 object_register_sugar_prop("mc146818rtc",
880 } else if (!strcmp(value
, "none")) {
881 /* discard is default */
883 error_report("invalid option value '%s'", value
);
889 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
891 const char *proc_name
;
893 if (qemu_opt_get(opts
, "debug-threads")) {
894 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
896 qemu_name
= qemu_opt_get(opts
, "guest");
898 proc_name
= qemu_opt_get(opts
, "process");
900 os_set_proc_name(proc_name
);
906 bool defaults_enabled(void)
912 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
914 int fd
, dupfd
, flags
;
916 const char *fd_opaque
= NULL
;
919 fd
= qemu_opt_get_number(opts
, "fd", -1);
920 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
921 fd_opaque
= qemu_opt_get(opts
, "opaque");
924 error_setg(errp
, "fd option is required and must be non-negative");
928 if (fd
<= STDERR_FILENO
) {
929 error_setg(errp
, "fd cannot be a standard I/O stream");
934 * All fds inherited across exec() necessarily have FD_CLOEXEC
935 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
937 flags
= fcntl(fd
, F_GETFD
);
938 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
939 error_setg(errp
, "fd is not valid or already in use");
944 error_setg(errp
, "set option is required and must be non-negative");
948 #ifdef F_DUPFD_CLOEXEC
949 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
953 qemu_set_cloexec(dupfd
);
957 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
961 /* add the duplicate fd, and optionally the opaque string, to the fd set */
962 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, !!fd_opaque
, fd_opaque
,
969 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
973 fd
= qemu_opt_get_number(opts
, "fd", -1);
980 /***********************************************************/
981 /* QEMU Block devices */
983 #define HD_OPTS "media=disk"
984 #define CDROM_OPTS "media=cdrom"
986 #define PFLASH_OPTS ""
990 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
992 BlockInterfaceType
*block_default_type
= opaque
;
994 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
997 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
999 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
1000 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
1005 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
1006 int index
, const char *optstr
)
1011 if (!enable
|| drive_get_by_index(type
, index
)) {
1015 opts
= drive_add(type
, index
, NULL
, optstr
);
1017 drive_enable_snapshot(NULL
, opts
, NULL
);
1020 dinfo
= drive_new(opts
, type
, &error_abort
);
1021 dinfo
->is_default
= true;
1025 typedef struct BlockdevOptionsQueueEntry
{
1026 BlockdevOptions
*bdo
;
1028 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
1029 } BlockdevOptionsQueueEntry
;
1031 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
1033 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
1034 MachineClass
*machine_class
, int snapshot
)
1037 * If the currently selected machine wishes to override the
1038 * units-per-bus property of its default HBA interface type, do so
1041 if (machine_class
->units_per_default_bus
) {
1042 override_max_devs(machine_class
->block_default_type
,
1043 machine_class
->units_per_default_bus
);
1046 /* open the virtual block devices */
1047 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
1048 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
1050 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
1051 loc_push_restore(&bdo
->loc
);
1052 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
1054 qapi_free_BlockdevOptions(bdo
->bdo
);
1058 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
1061 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
1062 &machine_class
->block_default_type
, &error_fatal
)) {
1063 /* We printed help */
1067 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
1069 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
1070 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
1074 static QemuOptsList qemu_smp_opts
= {
1076 .implied_opt_name
= "cpus",
1077 .merge_lists
= true,
1078 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
1082 .type
= QEMU_OPT_NUMBER
,
1085 .type
= QEMU_OPT_NUMBER
,
1088 .type
= QEMU_OPT_NUMBER
,
1091 .type
= QEMU_OPT_NUMBER
,
1094 .type
= QEMU_OPT_NUMBER
,
1097 .type
= QEMU_OPT_NUMBER
,
1099 { /*End of list */ }
1103 static void realtime_init(void)
1106 if (os_mlock() < 0) {
1107 error_report("locking memory failed");
1114 static void configure_msg(QemuOpts
*opts
)
1116 error_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
1120 /***********************************************************/
1123 static int usb_device_add(const char *devname
)
1125 USBDevice
*dev
= NULL
;
1127 if (!machine_usb(current_machine
)) {
1131 dev
= usbdevice_create(devname
);
1138 static int usb_parse(const char *cmdline
)
1141 r
= usb_device_add(cmdline
);
1143 error_report("could not add USB device '%s'", cmdline
);
1148 /***********************************************************/
1149 /* machine registration */
1151 MachineState
*current_machine
;
1153 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
1157 for (el
= machines
; el
; el
= el
->next
) {
1158 MachineClass
*mc
= el
->data
;
1160 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
1168 static MachineClass
*find_default_machine(GSList
*machines
)
1171 MachineClass
*default_machineclass
= NULL
;
1173 for (el
= machines
; el
; el
= el
->next
) {
1174 MachineClass
*mc
= el
->data
;
1176 if (mc
->is_default
) {
1177 assert(default_machineclass
== NULL
&& "Multiple default machines");
1178 default_machineclass
= mc
;
1182 return default_machineclass
;
1185 static int machine_help_func(QemuOpts
*opts
, MachineState
*machine
)
1187 ObjectProperty
*prop
;
1188 ObjectPropertyIterator iter
;
1190 if (!qemu_opt_has_help_opt(opts
)) {
1194 object_property_iter_init(&iter
, OBJECT(machine
));
1195 while ((prop
= object_property_iter_next(&iter
))) {
1200 printf("%s.%s=%s", MACHINE_GET_CLASS(machine
)->name
,
1201 prop
->name
, prop
->type
);
1202 if (prop
->description
) {
1203 printf(" (%s)\n", prop
->description
);
1212 struct VMChangeStateEntry
{
1213 VMChangeStateHandler
*cb
;
1215 QTAILQ_ENTRY(VMChangeStateEntry
) entries
;
1219 static QTAILQ_HEAD(, VMChangeStateEntry
) vm_change_state_head
;
1222 * qemu_add_vm_change_state_handler_prio:
1223 * @cb: the callback to invoke
1224 * @opaque: user data passed to the callback
1225 * @priority: low priorities execute first when the vm runs and the reverse is
1226 * true when the vm stops
1228 * Register a callback function that is invoked when the vm starts or stops
1231 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1233 VMChangeStateEntry
*qemu_add_vm_change_state_handler_prio(
1234 VMChangeStateHandler
*cb
, void *opaque
, int priority
)
1236 VMChangeStateEntry
*e
;
1237 VMChangeStateEntry
*other
;
1239 e
= g_malloc0(sizeof(*e
));
1242 e
->priority
= priority
;
1244 /* Keep list sorted in ascending priority order */
1245 QTAILQ_FOREACH(other
, &vm_change_state_head
, entries
) {
1246 if (priority
< other
->priority
) {
1247 QTAILQ_INSERT_BEFORE(other
, e
, entries
);
1252 QTAILQ_INSERT_TAIL(&vm_change_state_head
, e
, entries
);
1256 VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler
*cb
,
1259 return qemu_add_vm_change_state_handler_prio(cb
, opaque
, 0);
1262 void qemu_del_vm_change_state_handler(VMChangeStateEntry
*e
)
1264 QTAILQ_REMOVE(&vm_change_state_head
, e
, entries
);
1268 void vm_state_notify(int running
, RunState state
)
1270 VMChangeStateEntry
*e
, *next
;
1272 trace_vm_state_notify(running
, state
, RunState_str(state
));
1275 QTAILQ_FOREACH_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1276 e
->cb(e
->opaque
, running
, state
);
1279 QTAILQ_FOREACH_REVERSE_SAFE(e
, &vm_change_state_head
, entries
, next
) {
1280 e
->cb(e
->opaque
, running
, state
);
1285 static ShutdownCause reset_requested
;
1286 static ShutdownCause shutdown_requested
;
1287 static int shutdown_signal
;
1288 static pid_t shutdown_pid
;
1289 static int powerdown_requested
;
1290 static int debug_requested
;
1291 static int suspend_requested
;
1292 static bool preconfig_exit_requested
= true;
1293 static WakeupReason wakeup_reason
;
1294 static NotifierList powerdown_notifiers
=
1295 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers
);
1296 static NotifierList suspend_notifiers
=
1297 NOTIFIER_LIST_INITIALIZER(suspend_notifiers
);
1298 static NotifierList wakeup_notifiers
=
1299 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers
);
1300 static NotifierList shutdown_notifiers
=
1301 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers
);
1302 static uint32_t wakeup_reason_mask
= ~(1 << QEMU_WAKEUP_REASON_NONE
);
1304 ShutdownCause
qemu_shutdown_requested_get(void)
1306 return shutdown_requested
;
1309 ShutdownCause
qemu_reset_requested_get(void)
1311 return reset_requested
;
1314 static int qemu_shutdown_requested(void)
1316 return atomic_xchg(&shutdown_requested
, SHUTDOWN_CAUSE_NONE
);
1319 static void qemu_kill_report(void)
1321 if (!qtest_driver() && shutdown_signal
) {
1322 if (shutdown_pid
== 0) {
1323 /* This happens for eg ^C at the terminal, so it's worth
1324 * avoiding printing an odd message in that case.
1326 error_report("terminating on signal %d", shutdown_signal
);
1328 char *shutdown_cmd
= qemu_get_pid_name(shutdown_pid
);
1330 error_report("terminating on signal %d from pid " FMT_pid
" (%s)",
1331 shutdown_signal
, shutdown_pid
,
1332 shutdown_cmd
? shutdown_cmd
: "<unknown process>");
1333 g_free(shutdown_cmd
);
1335 shutdown_signal
= 0;
1339 static ShutdownCause
qemu_reset_requested(void)
1341 ShutdownCause r
= reset_requested
;
1343 if (r
&& replay_checkpoint(CHECKPOINT_RESET_REQUESTED
)) {
1344 reset_requested
= SHUTDOWN_CAUSE_NONE
;
1347 return SHUTDOWN_CAUSE_NONE
;
1350 static int qemu_suspend_requested(void)
1352 int r
= suspend_requested
;
1353 if (r
&& replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED
)) {
1354 suspend_requested
= 0;
1360 static WakeupReason
qemu_wakeup_requested(void)
1362 return wakeup_reason
;
1365 static int qemu_powerdown_requested(void)
1367 int r
= powerdown_requested
;
1368 powerdown_requested
= 0;
1372 static int qemu_debug_requested(void)
1374 int r
= debug_requested
;
1375 debug_requested
= 0;
1379 void qemu_exit_preconfig_request(void)
1381 preconfig_exit_requested
= true;
1385 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1387 void qemu_system_reset(ShutdownCause reason
)
1391 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1393 cpu_synchronize_all_states();
1395 if (mc
&& mc
->reset
) {
1396 mc
->reset(current_machine
);
1398 qemu_devices_reset();
1400 if (reason
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1401 qapi_event_send_reset(shutdown_caused_by_guest(reason
), reason
);
1403 cpu_synchronize_all_post_reset();
1407 * Wake the VM after suspend.
1409 static void qemu_system_wakeup(void)
1413 mc
= current_machine
? MACHINE_GET_CLASS(current_machine
) : NULL
;
1415 if (mc
&& mc
->wakeup
) {
1416 mc
->wakeup(current_machine
);
1420 void qemu_system_guest_panicked(GuestPanicInformation
*info
)
1422 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crashed");
1425 current_cpu
->crash_occurred
= true;
1427 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE
,
1429 vm_stop(RUN_STATE_GUEST_PANICKED
);
1431 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF
,
1433 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC
);
1437 if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_HYPER_V
) {
1438 qemu_log_mask(LOG_GUEST_ERROR
, "\nHV crash parameters: (%#"PRIx64
1439 " %#"PRIx64
" %#"PRIx64
" %#"PRIx64
" %#"PRIx64
")\n",
1440 info
->u
.hyper_v
.arg1
,
1441 info
->u
.hyper_v
.arg2
,
1442 info
->u
.hyper_v
.arg3
,
1443 info
->u
.hyper_v
.arg4
,
1444 info
->u
.hyper_v
.arg5
);
1445 } else if (info
->type
== GUEST_PANIC_INFORMATION_TYPE_S390
) {
1446 qemu_log_mask(LOG_GUEST_ERROR
, " on cpu %d: %s\n"
1447 "PSW: 0x%016" PRIx64
" 0x%016" PRIx64
"\n",
1449 S390CrashReason_str(info
->u
.s390
.reason
),
1450 info
->u
.s390
.psw_mask
,
1451 info
->u
.s390
.psw_addr
);
1453 qapi_free_GuestPanicInformation(info
);
1457 void qemu_system_guest_crashloaded(GuestPanicInformation
*info
)
1459 qemu_log_mask(LOG_GUEST_ERROR
, "Guest crash loaded");
1461 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN
,
1465 qapi_free_GuestPanicInformation(info
);
1469 void qemu_system_reset_request(ShutdownCause reason
)
1471 if (no_reboot
&& reason
!= SHUTDOWN_CAUSE_SUBSYSTEM_RESET
) {
1472 shutdown_requested
= reason
;
1474 reset_requested
= reason
;
1477 qemu_notify_event();
1480 static void qemu_system_suspend(void)
1483 notifier_list_notify(&suspend_notifiers
, NULL
);
1484 runstate_set(RUN_STATE_SUSPENDED
);
1485 qapi_event_send_suspend();
1488 void qemu_system_suspend_request(void)
1490 if (runstate_check(RUN_STATE_SUSPENDED
)) {
1493 suspend_requested
= 1;
1495 qemu_notify_event();
1498 void qemu_register_suspend_notifier(Notifier
*notifier
)
1500 notifier_list_add(&suspend_notifiers
, notifier
);
1503 void qemu_system_wakeup_request(WakeupReason reason
, Error
**errp
)
1505 trace_system_wakeup_request(reason
);
1507 if (!runstate_check(RUN_STATE_SUSPENDED
)) {
1509 "Unable to wake up: guest is not in suspended state");
1512 if (!(wakeup_reason_mask
& (1 << reason
))) {
1515 runstate_set(RUN_STATE_RUNNING
);
1516 wakeup_reason
= reason
;
1517 qemu_notify_event();
1520 void qemu_system_wakeup_enable(WakeupReason reason
, bool enabled
)
1523 wakeup_reason_mask
|= (1 << reason
);
1525 wakeup_reason_mask
&= ~(1 << reason
);
1529 void qemu_register_wakeup_notifier(Notifier
*notifier
)
1531 notifier_list_add(&wakeup_notifiers
, notifier
);
1534 void qemu_register_wakeup_support(void)
1536 wakeup_suspend_enabled
= true;
1539 bool qemu_wakeup_suspend_enabled(void)
1541 return wakeup_suspend_enabled
;
1544 void qemu_system_killed(int signal
, pid_t pid
)
1546 shutdown_signal
= signal
;
1550 /* Cannot call qemu_system_shutdown_request directly because
1551 * we are in a signal handler.
1553 shutdown_requested
= SHUTDOWN_CAUSE_HOST_SIGNAL
;
1554 qemu_notify_event();
1557 void qemu_system_shutdown_request(ShutdownCause reason
)
1559 trace_qemu_system_shutdown_request(reason
);
1560 replay_shutdown_request(reason
);
1561 shutdown_requested
= reason
;
1562 qemu_notify_event();
1565 static void qemu_system_powerdown(void)
1567 qapi_event_send_powerdown();
1568 notifier_list_notify(&powerdown_notifiers
, NULL
);
1571 static void qemu_system_shutdown(ShutdownCause cause
)
1573 qapi_event_send_shutdown(shutdown_caused_by_guest(cause
), cause
);
1574 notifier_list_notify(&shutdown_notifiers
, &cause
);
1577 void qemu_system_powerdown_request(void)
1579 trace_qemu_system_powerdown_request();
1580 powerdown_requested
= 1;
1581 qemu_notify_event();
1584 void qemu_register_powerdown_notifier(Notifier
*notifier
)
1586 notifier_list_add(&powerdown_notifiers
, notifier
);
1589 void qemu_register_shutdown_notifier(Notifier
*notifier
)
1591 notifier_list_add(&shutdown_notifiers
, notifier
);
1594 void qemu_system_debug_request(void)
1596 debug_requested
= 1;
1597 qemu_notify_event();
1600 static bool main_loop_should_exit(void)
1603 ShutdownCause request
;
1605 if (preconfig_exit_requested
) {
1606 if (runstate_check(RUN_STATE_PRECONFIG
)) {
1607 runstate_set(RUN_STATE_PRELAUNCH
);
1609 preconfig_exit_requested
= false;
1612 if (qemu_debug_requested()) {
1613 vm_stop(RUN_STATE_DEBUG
);
1615 if (qemu_suspend_requested()) {
1616 qemu_system_suspend();
1618 request
= qemu_shutdown_requested();
1621 qemu_system_shutdown(request
);
1623 vm_stop(RUN_STATE_SHUTDOWN
);
1628 request
= qemu_reset_requested();
1631 qemu_system_reset(request
);
1634 * runstate can change in pause_all_vcpus()
1635 * as iothread mutex is unlocked
1637 if (!runstate_check(RUN_STATE_RUNNING
) &&
1638 !runstate_check(RUN_STATE_INMIGRATE
) &&
1639 !runstate_check(RUN_STATE_FINISH_MIGRATE
)) {
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 void qemu_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 module_object_class_by_name(ti
->class_names
[0]) ||
1781 module_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
, ",show-cursor=", &nextopt
)) {
1922 dpy
.has_show_cursor
= true;
1923 if (strstart(opts
, "on", &nextopt
)) {
1924 dpy
.show_cursor
= true;
1925 } else if (strstart(opts
, "off", &nextopt
)) {
1926 dpy
.show_cursor
= false;
1928 goto invalid_sdl_args
;
1930 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1933 if (strstart(opts
, "on", &nextopt
)) {
1934 dpy
.gl
= DISPLAYGL_MODE_ON
;
1935 } else if (strstart(opts
, "core", &nextopt
)) {
1936 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1937 } else if (strstart(opts
, "es", &nextopt
)) {
1938 dpy
.gl
= DISPLAYGL_MODE_ES
;
1939 } else if (strstart(opts
, "off", &nextopt
)) {
1940 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1942 goto invalid_sdl_args
;
1946 error_report("invalid SDL option string");
1951 } else if (strstart(p
, "vnc", &opts
)) {
1953 * vnc isn't a (local) DisplayType but a protocol for remote
1957 vnc_parse(opts
+ 1, &error_fatal
);
1959 error_report("VNC requires a display argument vnc=<display>");
1963 parse_display_qapi(p
);
1967 char *qemu_find_file(int type
, const char *name
)
1973 /* Try the name as a straight path first */
1974 if (access(name
, R_OK
) == 0) {
1975 trace_load_file(name
, name
);
1976 return g_strdup(name
);
1980 case QEMU_FILE_TYPE_BIOS
:
1983 case QEMU_FILE_TYPE_KEYMAP
:
1984 subdir
= "keymaps/";
1990 for (i
= 0; i
< data_dir_idx
; i
++) {
1991 buf
= g_strdup_printf("%s/%s%s", data_dir
[i
], subdir
, name
);
1992 if (access(buf
, R_OK
) == 0) {
1993 trace_load_file(name
, buf
);
2001 void qemu_add_data_dir(const char *path
)
2008 if (data_dir_idx
== ARRAY_SIZE(data_dir
)) {
2011 for (i
= 0; i
< data_dir_idx
; i
++) {
2012 if (strcmp(data_dir
[i
], path
) == 0) {
2013 return; /* duplicate */
2016 data_dir
[data_dir_idx
++] = g_strdup(path
);
2019 static inline bool nonempty_str(const char *str
)
2024 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2028 const char *name
, *file
, *str
, *gen_id
;
2029 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
2031 if (fw_cfg
== NULL
) {
2032 error_setg(errp
, "fw_cfg device not available");
2035 name
= qemu_opt_get(opts
, "name");
2036 file
= qemu_opt_get(opts
, "file");
2037 str
= qemu_opt_get(opts
, "string");
2038 gen_id
= qemu_opt_get(opts
, "gen_id");
2040 /* we need the name, and exactly one of: file, content string, gen_id */
2041 if (!nonempty_str(name
) ||
2042 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
2043 error_setg(errp
, "name, plus exactly one of file,"
2044 " string and gen_id, are needed");
2047 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
2048 error_setg(errp
, "name too long (max. %d char)",
2049 FW_CFG_MAX_FILE_PATH
- 1);
2052 if (nonempty_str(gen_id
)) {
2054 * In this particular case where the content is populated
2055 * internally, the "etc/" namespace protection is relaxed,
2056 * so do not emit a warning.
2058 } else if (strncmp(name
, "opt/", 4) != 0) {
2059 warn_report("externally provided fw_cfg item names "
2060 "should be prefixed with \"opt/\"");
2062 if (nonempty_str(str
)) {
2063 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
2064 buf
= g_memdup(str
, size
);
2065 } else if (nonempty_str(gen_id
)) {
2066 Error
*local_err
= NULL
;
2068 fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
);
2070 error_propagate(errp
, local_err
);
2076 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
2077 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
2082 /* For legacy, keep user files in a specific global order. */
2083 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
2084 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
2085 fw_cfg_reset_order_override(fw_cfg
);
2089 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2091 return qdev_device_help(opts
);
2094 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2098 dev
= qdev_device_add(opts
, errp
);
2099 if (!dev
&& *errp
) {
2100 error_report_err(*errp
);
2103 object_unref(OBJECT(dev
));
2108 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2110 Error
*local_err
= NULL
;
2112 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
2114 error_propagate(errp
, local_err
);
2122 #ifdef CONFIG_VIRTFS
2123 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2125 return qemu_fsdev_add(opts
, errp
);
2129 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2131 return monitor_init_opts(opts
, errp
);
2134 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
2136 static int monitor_device_index
= 0;
2141 if (strstart(optarg
, "chardev:", &p
)) {
2142 snprintf(label
, sizeof(label
), "%s", p
);
2144 snprintf(label
, sizeof(label
), "compat_monitor%d",
2145 monitor_device_index
);
2146 opts
= qemu_chr_parse_compat(label
, optarg
, true);
2148 error_report("parse error: %s", optarg
);
2153 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
2154 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
2155 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
2156 if (!strcmp(mode
, "control")) {
2157 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
2159 assert(pretty
== false);
2161 monitor_device_index
++;
2164 struct device_config
{
2166 DEV_USB
, /* -usbdevice */
2167 DEV_SERIAL
, /* -serial */
2168 DEV_PARALLEL
, /* -parallel */
2169 DEV_DEBUGCON
, /* -debugcon */
2170 DEV_GDB
, /* -gdb, -s */
2171 DEV_SCLP
, /* s390 sclp */
2173 const char *cmdline
;
2175 QTAILQ_ENTRY(device_config
) next
;
2178 static QTAILQ_HEAD(, device_config
) device_configs
=
2179 QTAILQ_HEAD_INITIALIZER(device_configs
);
2181 static void add_device_config(int type
, const char *cmdline
)
2183 struct device_config
*conf
;
2185 conf
= g_malloc0(sizeof(*conf
));
2187 conf
->cmdline
= cmdline
;
2188 loc_save(&conf
->loc
);
2189 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
2192 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
2194 struct device_config
*conf
;
2197 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
2198 if (conf
->type
!= type
)
2200 loc_push_restore(&conf
->loc
);
2201 rc
= func(conf
->cmdline
);
2202 loc_pop(&conf
->loc
);
2210 static int serial_parse(const char *devname
)
2212 int index
= num_serial_hds
;
2215 if (strcmp(devname
, "none") == 0)
2217 snprintf(label
, sizeof(label
), "serial%d", index
);
2218 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
2220 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2221 if (!serial_hds
[index
]) {
2222 error_report("could not connect serial device"
2223 " to character backend '%s'", devname
);
2230 Chardev
*serial_hd(int i
)
2233 if (i
< num_serial_hds
) {
2234 return serial_hds
[i
];
2239 int serial_max_hds(void)
2241 return num_serial_hds
;
2244 static int parallel_parse(const char *devname
)
2246 static int index
= 0;
2249 if (strcmp(devname
, "none") == 0)
2251 if (index
== MAX_PARALLEL_PORTS
) {
2252 error_report("too many parallel ports");
2255 snprintf(label
, sizeof(label
), "parallel%d", index
);
2256 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
2257 if (!parallel_hds
[index
]) {
2258 error_report("could not connect parallel device"
2259 " to character backend '%s'", devname
);
2266 static int debugcon_parse(const char *devname
)
2270 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
2271 error_report("invalid character backend '%s'", devname
);
2274 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
2276 error_report("already have a debugcon device");
2279 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
2280 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
2284 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
2286 const MachineClass
*mc1
= a
, *mc2
= b
;
2289 if (mc1
->family
== NULL
) {
2290 if (mc2
->family
== NULL
) {
2291 /* Compare standalone machine types against each other; they sort
2292 * in increasing order.
2294 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
2295 object_class_get_name(OBJECT_CLASS(mc2
)));
2298 /* Standalone machine types sort after families. */
2302 if (mc2
->family
== NULL
) {
2303 /* Families sort before standalone machine types. */
2307 /* Families sort between each other alphabetically increasingly. */
2308 res
= strcmp(mc1
->family
, mc2
->family
);
2313 /* Within the same family, machine types sort in decreasing order. */
2314 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
2315 object_class_get_name(OBJECT_CLASS(mc1
)));
2318 static MachineClass
*machine_parse(const char *name
, GSList
*machines
)
2323 if (is_help_option(name
)) {
2324 printf("Supported machines are:\n");
2325 machines
= g_slist_sort(machines
, machine_class_cmp
);
2326 for (el
= machines
; el
; el
= el
->next
) {
2327 MachineClass
*mc
= el
->data
;
2329 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
2331 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
2332 mc
->is_default
? " (default)" : "",
2333 mc
->deprecation_reason
? " (deprecated)" : "");
2338 mc
= find_machine(name
, machines
);
2340 error_report("unsupported machine type");
2341 error_printf("Use -machine help to list supported machines\n");
2347 void qemu_add_exit_notifier(Notifier
*notify
)
2349 notifier_list_add(&exit_notifiers
, notify
);
2352 void qemu_remove_exit_notifier(Notifier
*notify
)
2354 notifier_remove(notify
);
2357 static void qemu_run_exit_notifiers(void)
2359 notifier_list_notify(&exit_notifiers
, NULL
);
2362 static const char *pid_file
;
2363 static Notifier qemu_unlink_pidfile_notifier
;
2365 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
2372 bool machine_init_done
;
2374 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
2376 notifier_list_add(&machine_init_done_notifiers
, notify
);
2377 if (machine_init_done
) {
2378 notify
->notify(notify
, NULL
);
2382 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
2384 notifier_remove(notify
);
2387 static void qemu_run_machine_init_done_notifiers(void)
2389 machine_init_done
= true;
2390 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
2393 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
2394 const char **poptarg
, int *poptind
)
2396 const QEMUOption
*popt
;
2397 int optind
= *poptind
;
2398 char *r
= argv
[optind
];
2401 loc_set_cmdline(argv
, optind
, 1);
2403 /* Treat --foo the same as -foo. */
2406 popt
= qemu_options
;
2409 error_report("invalid option");
2412 if (!strcmp(popt
->name
, r
+ 1))
2416 if (popt
->flags
& HAS_ARG
) {
2417 if (optind
>= argc
) {
2418 error_report("requires an argument");
2421 optarg
= argv
[optind
++];
2422 loc_set_cmdline(argv
, optind
- 2, 2);
2433 static MachineClass
*select_machine(void)
2435 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
2436 MachineClass
*machine_class
= find_default_machine(machines
);
2441 loc_push_none(&loc
);
2443 opts
= qemu_get_machine_opts();
2444 qemu_opts_loc_restore(opts
);
2446 optarg
= qemu_opt_get(opts
, "type");
2448 machine_class
= machine_parse(optarg
, machines
);
2451 if (!machine_class
) {
2452 error_report("No machine specified, and there is no default");
2453 error_printf("Use -machine help to list supported machines\n");
2458 g_slist_free(machines
);
2459 return machine_class
;
2462 static int object_parse_property_opt(Object
*obj
,
2463 const char *name
, const char *value
,
2464 const char *skip
, Error
**errp
)
2466 Error
*local_err
= NULL
;
2468 if (g_str_equal(name
, skip
)) {
2472 object_property_parse(obj
, value
, name
, &local_err
);
2475 error_propagate(errp
, local_err
);
2482 static int machine_set_property(void *opaque
,
2483 const char *name
, const char *value
,
2486 g_autofree
char *qom_name
= g_strdup(name
);
2489 for (p
= qom_name
; *p
; p
++) {
2495 /* Legacy options do not correspond to MachineState properties. */
2496 if (g_str_equal(qom_name
, "accel")) {
2499 if (g_str_equal(qom_name
, "igd-passthru")) {
2500 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name
, value
);
2503 if (g_str_equal(qom_name
, "kvm-shadow-mem") ||
2504 g_str_equal(qom_name
, "kernel-irqchip")) {
2505 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name
, value
);
2509 return object_parse_property_opt(opaque
, name
, value
, "type", errp
);
2513 * Initial object creation happens before all other
2514 * QEMU data types are created. The majority of objects
2515 * can be created at this point. The rng-egd object
2516 * cannot be created here, as it depends on the chardev
2519 static bool object_create_initial(const char *type
, QemuOpts
*opts
)
2521 if (user_creatable_print_help(type
, opts
)) {
2526 * Objects should not be made "delayed" without a reason. If you
2527 * add one, state the reason in a comment!
2530 /* Reason: rng-egd property "chardev" */
2531 if (g_str_equal(type
, "rng-egd")) {
2535 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2536 /* Reason: cryptodev-vhost-user property "chardev" */
2537 if (g_str_equal(type
, "cryptodev-vhost-user")) {
2543 * Reason: filter-* property "netdev" etc.
2545 if (g_str_equal(type
, "filter-buffer") ||
2546 g_str_equal(type
, "filter-dump") ||
2547 g_str_equal(type
, "filter-mirror") ||
2548 g_str_equal(type
, "filter-redirector") ||
2549 g_str_equal(type
, "colo-compare") ||
2550 g_str_equal(type
, "filter-rewriter") ||
2551 g_str_equal(type
, "filter-replay")) {
2555 /* Memory allocation by backends needs to be done
2556 * after configure_accelerator() (due to the tcg_enabled()
2557 * checks at memory_region_init_*()).
2559 * Also, allocation of large amounts of memory may delay
2560 * chardev initialization for too long, and trigger timeouts
2561 * on software that waits for a monitor socket to be created
2564 if (g_str_has_prefix(type
, "memory-backend-")) {
2573 * The remainder of object creation happens after the
2574 * creation of chardev, fsdev, net clients and device data types.
2576 static bool object_create_delayed(const char *type
, QemuOpts
*opts
)
2578 return !object_create_initial(type
, opts
);
2582 static bool set_memory_options(uint64_t *ram_slots
, ram_addr_t
*maxram_size
,
2586 const char *mem_str
;
2587 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2588 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2591 loc_push_none(&loc
);
2592 qemu_opts_loc_restore(opts
);
2595 mem_str
= qemu_opt_get(opts
, "size");
2598 error_report("missing 'size' option value");
2602 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2604 /* Fix up legacy suffix-less format */
2605 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2606 uint64_t overflow_check
= sz
;
2609 if (sz
/ MiB
!= overflow_check
) {
2610 error_report("too large 'size' option value");
2616 /* backward compatibility behaviour for case "-m 0" */
2618 sz
= default_ram_size
;
2621 sz
= QEMU_ALIGN_UP(sz
, 8192);
2622 if (mc
->fixup_ram_size
) {
2623 sz
= mc
->fixup_ram_size(sz
);
2626 if (ram_size
!= sz
) {
2627 error_report("ram size too large");
2631 /* store value for the future use */
2632 qemu_opt_set_number(opts
, "size", ram_size
, &error_abort
);
2633 *maxram_size
= ram_size
;
2635 if (qemu_opt_get(opts
, "maxmem")) {
2638 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2639 slots
= qemu_opt_get_number(opts
, "slots", 0);
2640 if (sz
< ram_size
) {
2641 error_report("invalid value of -m option maxmem: "
2642 "maximum memory size (0x%" PRIx64
") must be at least "
2643 "the initial memory size (0x" RAM_ADDR_FMT
")",
2646 } else if (slots
&& sz
== ram_size
) {
2647 error_report("invalid value of -m option maxmem: "
2648 "memory slots were specified but maximum memory size "
2649 "(0x%" PRIx64
") is equal to the initial memory size "
2650 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2656 } else if (qemu_opt_get(opts
, "slots")) {
2657 error_report("invalid -m option value: missing 'maxmem' option");
2665 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2669 g
= g_malloc0(sizeof(*g
));
2670 g
->driver
= qemu_opt_get(opts
, "driver");
2671 g
->property
= qemu_opt_get(opts
, "property");
2672 g
->value
= qemu_opt_get(opts
, "value");
2673 qdev_prop_register_global(g
);
2677 static int qemu_read_default_config_file(void)
2681 ret
= qemu_read_config_file(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2682 if (ret
< 0 && ret
!= -ENOENT
) {
2689 static void user_register_global_props(void)
2691 qemu_opts_foreach(qemu_find_opts("global"),
2692 global_init_func
, NULL
, NULL
);
2695 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2697 configure_icount(opts
, errp
);
2701 static int accelerator_set_property(void *opaque
,
2702 const char *name
, const char *value
,
2705 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2708 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2710 bool *p_init_failed
= opaque
;
2711 const char *acc
= qemu_opt_get(opts
, "accel");
2712 AccelClass
*ac
= accel_find(acc
);
2717 *p_init_failed
= true;
2718 error_report("invalid accelerator %s", acc
);
2721 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2722 object_apply_compat_props(OBJECT(accel
));
2723 qemu_opt_foreach(opts
, accelerator_set_property
,
2727 ret
= accel_init_machine(accel
, current_machine
);
2729 *p_init_failed
= true;
2730 error_report("failed to initialize %s: %s",
2731 acc
, strerror(-ret
));
2738 static void configure_accelerators(const char *progname
)
2741 bool init_failed
= false;
2743 qemu_opts_foreach(qemu_find_opts("icount"),
2744 do_configure_icount
, NULL
, &error_fatal
);
2746 accel
= qemu_opt_get(qemu_get_machine_opts(), "accel");
2747 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2748 char **accel_list
, **tmp
;
2750 if (accel
== NULL
) {
2751 /* Select the default accelerator */
2752 bool have_tcg
= accel_find("tcg");
2753 bool have_kvm
= accel_find("kvm");
2755 if (have_tcg
&& have_kvm
) {
2756 if (g_str_has_suffix(progname
, "kvm")) {
2757 /* If the program name ends with "kvm", we prefer KVM */
2762 } else if (have_kvm
) {
2764 } else if (have_tcg
) {
2767 error_report("No accelerator selected and"
2768 " no default accelerator available");
2772 accel_list
= g_strsplit(accel
, ":", 0);
2774 for (tmp
= accel_list
; *tmp
; tmp
++) {
2776 * Filter invalid accelerators here, to prevent obscenities
2777 * such as "-machine accel=tcg,,thread=single".
2779 if (accel_find(*tmp
)) {
2780 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2783 error_report("invalid accelerator %s", *tmp
);
2786 g_strfreev(accel_list
);
2788 if (accel
!= NULL
) {
2789 error_report("The -accel and \"-machine accel=\" options are incompatible");
2794 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2795 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2797 error_report("no accelerator found");
2803 AccelClass
*ac
= ACCEL_GET_CLASS(current_accel());
2804 error_report("falling back to %s", ac
->name
);
2807 if (use_icount
&& !(tcg_enabled() || qtest_enabled())) {
2808 error_report("-icount is not allowed with hardware virtualization");
2813 static void create_default_memdev(MachineState
*ms
, const char *path
)
2816 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
2818 obj
= object_new(path
? TYPE_MEMORY_BACKEND_FILE
: TYPE_MEMORY_BACKEND_RAM
);
2820 object_property_set_str(obj
, path
, "mem-path", &error_fatal
);
2822 object_property_set_int(obj
, ms
->ram_size
, "size", &error_fatal
);
2823 object_property_add_child(object_get_objects_root(), mc
->default_ram_id
,
2825 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2826 object_property_set_bool(obj
, false, "x-use-canonical-path-for-ramblock-id",
2828 user_creatable_complete(USER_CREATABLE(obj
), &error_fatal
);
2830 object_property_set_str(OBJECT(ms
), mc
->default_ram_id
, "memory-backend",
2834 void qemu_init(int argc
, char **argv
, char **envp
)
2837 int snapshot
, linux_boot
;
2838 const char *initrd_filename
;
2839 const char *kernel_filename
, *kernel_cmdline
;
2840 const char *boot_order
= NULL
;
2841 const char *boot_once
= NULL
;
2843 QemuOpts
*opts
, *machine_opts
;
2844 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2845 QemuOptsList
*olist
;
2848 const char *loadvm
= NULL
;
2849 MachineClass
*machine_class
;
2850 const char *cpu_option
;
2851 const char *vga_model
= NULL
;
2852 const char *qtest_chrdev
= NULL
;
2853 const char *qtest_log
= NULL
;
2854 const char *incoming
= NULL
;
2855 bool userconfig
= true;
2856 bool nographic
= false;
2857 int display_remote
= 0;
2858 const char *log_mask
= NULL
;
2859 const char *log_file
= NULL
;
2860 char *trace_file
= NULL
;
2861 ram_addr_t maxram_size
;
2862 uint64_t ram_slots
= 0;
2863 FILE *vmstate_dump_file
= NULL
;
2864 Error
*main_loop_err
= NULL
;
2866 bool list_data_dirs
= false;
2868 const char *mem_path
= NULL
;
2869 bool have_custom_ram_size
;
2870 BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
2871 QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
2872 int mem_prealloc
= 0; /* force preallocation of physical target memory */
2874 os_set_line_buffering();
2876 error_init(argv
[0]);
2877 module_call_init(MODULE_INIT_TRACE
);
2879 qemu_init_cpu_list();
2880 qemu_init_cpu_loop();
2882 qemu_mutex_lock_iothread();
2884 atexit(qemu_run_exit_notifiers
);
2885 qemu_init_exec_dir(argv
[0]);
2887 module_call_init(MODULE_INIT_QOM
);
2888 module_call_init(MODULE_INIT_MIGRATION
);
2890 qemu_add_opts(&qemu_drive_opts
);
2891 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2892 qemu_add_drive_opts(&qemu_common_drive_opts
);
2893 qemu_add_drive_opts(&qemu_drive_opts
);
2894 qemu_add_drive_opts(&bdrv_runtime_opts
);
2895 qemu_add_opts(&qemu_chardev_opts
);
2896 qemu_add_opts(&qemu_device_opts
);
2897 qemu_add_opts(&qemu_netdev_opts
);
2898 qemu_add_opts(&qemu_nic_opts
);
2899 qemu_add_opts(&qemu_net_opts
);
2900 qemu_add_opts(&qemu_rtc_opts
);
2901 qemu_add_opts(&qemu_global_opts
);
2902 qemu_add_opts(&qemu_mon_opts
);
2903 qemu_add_opts(&qemu_trace_opts
);
2904 qemu_plugin_add_opts();
2905 qemu_add_opts(&qemu_option_rom_opts
);
2906 qemu_add_opts(&qemu_machine_opts
);
2907 qemu_add_opts(&qemu_accel_opts
);
2908 qemu_add_opts(&qemu_mem_opts
);
2909 qemu_add_opts(&qemu_smp_opts
);
2910 qemu_add_opts(&qemu_boot_opts
);
2911 qemu_add_opts(&qemu_add_fd_opts
);
2912 qemu_add_opts(&qemu_object_opts
);
2913 qemu_add_opts(&qemu_tpmdev_opts
);
2914 qemu_add_opts(&qemu_realtime_opts
);
2915 qemu_add_opts(&qemu_overcommit_opts
);
2916 qemu_add_opts(&qemu_msg_opts
);
2917 qemu_add_opts(&qemu_name_opts
);
2918 qemu_add_opts(&qemu_numa_opts
);
2919 qemu_add_opts(&qemu_icount_opts
);
2920 qemu_add_opts(&qemu_semihosting_config_opts
);
2921 qemu_add_opts(&qemu_fw_cfg_opts
);
2922 module_call_init(MODULE_INIT_OPTS
);
2925 precopy_infrastructure_init();
2926 postcopy_infrastructure_init();
2927 monitor_init_globals();
2929 if (qcrypto_init(&err
) < 0) {
2930 error_reportf_err(err
, "cannot initialize crypto: ");
2934 QTAILQ_INIT(&vm_change_state_head
);
2935 os_setup_early_signal_handling();
2942 bdrv_init_with_whitelist();
2946 /* first pass of option parsing */
2948 while (optind
< argc
) {
2949 if (argv
[optind
][0] != '-') {
2953 const QEMUOption
*popt
;
2955 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2956 switch (popt
->index
) {
2957 case QEMU_OPTION_nouserconfig
:
2965 if (qemu_read_default_config_file() < 0) {
2970 /* second pass of option parsing */
2975 if (argv
[optind
][0] != '-') {
2976 loc_set_cmdline(argv
, optind
, 1);
2977 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2979 const QEMUOption
*popt
;
2981 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2982 if (!(popt
->arch_mask
& arch_type
)) {
2983 error_report("Option not supported for this target");
2986 switch(popt
->index
) {
2987 case QEMU_OPTION_cpu
:
2988 /* hw initialization will check this */
2989 cpu_option
= optarg
;
2991 case QEMU_OPTION_hda
:
2992 case QEMU_OPTION_hdb
:
2993 case QEMU_OPTION_hdc
:
2994 case QEMU_OPTION_hdd
:
2995 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2998 case QEMU_OPTION_blockdev
:
3001 BlockdevOptionsQueueEntry
*bdo
;
3003 v
= qobject_input_visitor_new_str(optarg
, "driver",
3006 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
3007 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
3010 loc_save(&bdo
->loc
);
3011 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
3014 case QEMU_OPTION_drive
:
3015 if (drive_def(optarg
) == NULL
) {
3019 case QEMU_OPTION_set
:
3020 if (qemu_set_option(optarg
) != 0)
3023 case QEMU_OPTION_global
:
3024 if (qemu_global_option(optarg
) != 0)
3027 case QEMU_OPTION_mtdblock
:
3028 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
3030 case QEMU_OPTION_sd
:
3031 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
3033 case QEMU_OPTION_pflash
:
3034 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
3036 case QEMU_OPTION_snapshot
:
3038 Error
*blocker
= NULL
;
3040 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
3042 replay_add_blocker(blocker
);
3045 case QEMU_OPTION_numa
:
3046 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
3052 case QEMU_OPTION_display
:
3053 parse_display(optarg
);
3055 case QEMU_OPTION_nographic
:
3056 olist
= qemu_find_opts("machine");
3057 qemu_opts_parse_noisily(olist
, "graphics=off", false);
3059 dpy
.type
= DISPLAY_TYPE_NONE
;
3061 case QEMU_OPTION_curses
:
3062 #ifdef CONFIG_CURSES
3063 dpy
.type
= DISPLAY_TYPE_CURSES
;
3065 error_report("curses or iconv support is disabled");
3069 case QEMU_OPTION_portrait
:
3070 graphic_rotate
= 90;
3072 case QEMU_OPTION_rotate
:
3073 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
3074 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
3075 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
3076 error_report("only 90, 180, 270 deg rotation is available");
3080 case QEMU_OPTION_kernel
:
3081 qemu_opts_set(qemu_find_opts("machine"), NULL
, "kernel", optarg
,
3084 case QEMU_OPTION_initrd
:
3085 qemu_opts_set(qemu_find_opts("machine"), NULL
, "initrd", optarg
,
3088 case QEMU_OPTION_append
:
3089 qemu_opts_set(qemu_find_opts("machine"), NULL
, "append", optarg
,
3092 case QEMU_OPTION_dtb
:
3093 qemu_opts_set(qemu_find_opts("machine"), NULL
, "dtb", optarg
,
3096 case QEMU_OPTION_cdrom
:
3097 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
3099 case QEMU_OPTION_boot
:
3100 opts
= qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3106 case QEMU_OPTION_fda
:
3107 case QEMU_OPTION_fdb
:
3108 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
3111 case QEMU_OPTION_no_fd_bootchk
:
3114 case QEMU_OPTION_netdev
:
3116 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
3120 case QEMU_OPTION_nic
:
3122 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
3126 case QEMU_OPTION_net
:
3128 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
3132 #ifdef CONFIG_LIBISCSI
3133 case QEMU_OPTION_iscsi
:
3134 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3141 case QEMU_OPTION_audio_help
:
3142 audio_legacy_help();
3145 case QEMU_OPTION_audiodev
:
3146 audio_parse_option(optarg
);
3148 case QEMU_OPTION_soundhw
:
3149 select_soundhw (optarg
);
3154 case QEMU_OPTION_version
:
3159 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3166 case QEMU_OPTION_tpmdev
:
3167 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3172 case QEMU_OPTION_mempath
:
3175 case QEMU_OPTION_mem_prealloc
:
3184 case QEMU_OPTION_DFILTER
:
3185 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3187 case QEMU_OPTION_seed
:
3188 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3191 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3193 case QEMU_OPTION_gdb
:
3194 add_device_config(DEV_GDB
, optarg
);
3197 if (is_help_option(optarg
)) {
3198 list_data_dirs
= true;
3200 qemu_add_data_dir(optarg
);
3203 case QEMU_OPTION_bios
:
3204 qemu_opts_set(qemu_find_opts("machine"), NULL
, "firmware", optarg
,
3207 case QEMU_OPTION_singlestep
:
3214 keyboard_layout
= optarg
;
3216 case QEMU_OPTION_vga
:
3225 w
= strtol(p
, (char **)&p
, 10);
3228 error_report("invalid resolution or depth");
3234 h
= strtol(p
, (char **)&p
, 10);
3239 depth
= strtol(p
, (char **)&p
, 10);
3240 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3241 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3242 depth
!= 24 && depth
!= 32)
3244 } else if (*p
== '\0') {
3245 depth
= graphic_depth
;
3252 graphic_depth
= depth
;
3255 case QEMU_OPTION_echr
:
3258 term_escape_char
= strtol(optarg
, &r
, 0);
3260 printf("Bad argument to echr\n");
3263 case QEMU_OPTION_monitor
:
3264 default_monitor
= 0;
3265 if (strncmp(optarg
, "none", 4)) {
3266 monitor_parse(optarg
, "readline", false);
3269 case QEMU_OPTION_qmp
:
3270 monitor_parse(optarg
, "control", false);
3271 default_monitor
= 0;
3273 case QEMU_OPTION_qmp_pretty
:
3274 monitor_parse(optarg
, "control", true);
3275 default_monitor
= 0;
3277 case QEMU_OPTION_mon
:
3278 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3283 default_monitor
= 0;
3285 case QEMU_OPTION_chardev
:
3286 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3292 case QEMU_OPTION_fsdev
:
3293 olist
= qemu_find_opts("fsdev");
3295 error_report("fsdev support is disabled");
3298 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3303 case QEMU_OPTION_virtfs
: {
3306 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3309 olist
= qemu_find_opts("virtfs");
3311 error_report("virtfs support is disabled");
3314 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3319 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3320 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3321 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3324 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3325 qemu_opts_id(opts
) ?:
3326 qemu_opt_get(opts
, "mount_tag"),
3329 error_report("duplicate or invalid fsdev id: %s",
3330 qemu_opt_get(opts
, "mount_tag"));
3334 writeout
= qemu_opt_get(opts
, "writeout");
3336 #ifdef CONFIG_SYNC_FILE_RANGE
3337 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3339 error_report("writeout=immediate not supported "
3340 "on this platform");
3344 qemu_opt_set(fsdev
, "fsdriver",
3345 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3346 path
= qemu_opt_get(opts
, "path");
3348 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3350 security_model
= qemu_opt_get(opts
, "security_model");
3351 if (security_model
) {
3352 qemu_opt_set(fsdev
, "security_model", security_model
,
3355 socket
= qemu_opt_get(opts
, "socket");
3357 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3359 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3361 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3364 qemu_opt_set_bool(fsdev
, "readonly",
3365 qemu_opt_get_bool(opts
, "readonly", 0),
3367 multidevs
= qemu_opt_get(opts
, "multidevs");
3369 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3371 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3373 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3374 qemu_opt_set(device
, "fsdev",
3375 qemu_opts_id(fsdev
), &error_abort
);
3376 qemu_opt_set(device
, "mount_tag",
3377 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3380 case QEMU_OPTION_serial
:
3381 add_device_config(DEV_SERIAL
, optarg
);
3383 if (strncmp(optarg
, "mon:", 4) == 0) {
3384 default_monitor
= 0;
3387 case QEMU_OPTION_watchdog
:
3389 error_report("only one watchdog option may be given");
3394 case QEMU_OPTION_watchdog_action
:
3395 if (select_watchdog_action(optarg
) == -1) {
3396 error_report("unknown -watchdog-action parameter");
3400 case QEMU_OPTION_parallel
:
3401 add_device_config(DEV_PARALLEL
, optarg
);
3402 default_parallel
= 0;
3403 if (strncmp(optarg
, "mon:", 4) == 0) {
3404 default_monitor
= 0;
3407 case QEMU_OPTION_debugcon
:
3408 add_device_config(DEV_DEBUGCON
, optarg
);
3410 case QEMU_OPTION_loadvm
:
3413 case QEMU_OPTION_full_screen
:
3414 dpy
.has_full_screen
= true;
3415 dpy
.full_screen
= true;
3417 case QEMU_OPTION_alt_grab
:
3420 case QEMU_OPTION_ctrl_grab
:
3423 case QEMU_OPTION_no_quit
:
3424 dpy
.has_window_close
= true;
3425 dpy
.window_close
= false;
3427 case QEMU_OPTION_sdl
:
3429 dpy
.type
= DISPLAY_TYPE_SDL
;
3432 error_report("SDL support is disabled");
3435 case QEMU_OPTION_pidfile
:
3438 case QEMU_OPTION_win2k_hack
:
3439 win2k_install_hack
= 1;
3441 case QEMU_OPTION_acpitable
:
3442 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3447 acpi_table_add(opts
, &error_fatal
);
3449 case QEMU_OPTION_smbios
:
3450 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3455 smbios_entry_add(opts
, &error_fatal
);
3457 case QEMU_OPTION_fwcfg
:
3458 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3464 case QEMU_OPTION_preconfig
:
3465 preconfig_exit_requested
= false;
3467 case QEMU_OPTION_enable_kvm
:
3468 olist
= qemu_find_opts("machine");
3469 qemu_opts_parse_noisily(olist
, "accel=kvm", false);
3472 case QEMU_OPTION_machine
:
3473 olist
= qemu_find_opts("machine");
3474 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3479 case QEMU_OPTION_no_kvm
:
3480 olist
= qemu_find_opts("machine");
3481 qemu_opts_parse_noisily(olist
, "accel=tcg", false);
3483 case QEMU_OPTION_accel
:
3484 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3486 optarg
= qemu_opt_get(accel_opts
, "accel");
3487 if (!optarg
|| is_help_option(optarg
)) {
3488 printf("Accelerators supported in QEMU binary:\n");
3489 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3491 for (el
= accel_list
; el
; el
= el
->next
) {
3492 gchar
*typename
= g_strdup(object_class_get_name(
3493 OBJECT_CLASS(el
->data
)));
3494 /* omit qtest which is used for tests only */
3495 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3496 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3497 gchar
**optname
= g_strsplit(typename
,
3498 ACCEL_CLASS_SUFFIX
, 0);
3499 printf("%s\n", optname
[0]);
3500 g_strfreev(optname
);
3504 g_slist_free(accel_list
);
3507 if (optarg
&& strchr(optarg
, ':')) {
3508 error_report("Don't use ':' with -accel, "
3509 "use -M accel=... for now instead");
3513 case QEMU_OPTION_usb
:
3514 olist
= qemu_find_opts("machine");
3515 qemu_opts_parse_noisily(olist
, "usb=on", false);
3517 case QEMU_OPTION_usbdevice
:
3518 error_report("'-usbdevice' is deprecated, please use "
3519 "'-device usb-...' instead");
3520 olist
= qemu_find_opts("machine");
3521 qemu_opts_parse_noisily(olist
, "usb=on", false);
3522 add_device_config(DEV_USB
, optarg
);
3524 case QEMU_OPTION_device
:
3525 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3530 case QEMU_OPTION_smp
:
3531 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3536 case QEMU_OPTION_vnc
:
3537 vnc_parse(optarg
, &error_fatal
);
3539 case QEMU_OPTION_no_acpi
:
3540 olist
= qemu_find_opts("machine");
3541 qemu_opts_parse_noisily(olist
, "acpi=off", false);
3543 case QEMU_OPTION_no_hpet
:
3546 case QEMU_OPTION_no_reboot
:
3549 case QEMU_OPTION_no_shutdown
:
3552 case QEMU_OPTION_show_cursor
:
3553 warn_report("The -show-cursor option is deprecated. Please "
3554 "add show-cursor=on to your -display options.");
3555 warn_report("When using the default display you can use "
3556 "-display default,show-cursor=on");
3557 dpy
.has_show_cursor
= true;
3558 dpy
.show_cursor
= true;
3560 case QEMU_OPTION_uuid
:
3561 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3562 error_report("failed to parse UUID string: wrong format");
3565 qemu_uuid_set
= true;
3567 case QEMU_OPTION_option_rom
:
3568 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3569 error_report("too many option ROMs");
3572 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3577 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3578 option_rom
[nb_option_roms
].bootindex
=
3579 qemu_opt_get_number(opts
, "bootindex", -1);
3580 if (!option_rom
[nb_option_roms
].name
) {
3581 error_report("Option ROM file is not specified");
3586 case QEMU_OPTION_semihosting
:
3587 qemu_semihosting_enable();
3589 case QEMU_OPTION_semihosting_config
:
3590 if (qemu_semihosting_config_options(optarg
) != 0) {
3594 case QEMU_OPTION_name
:
3595 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3601 case QEMU_OPTION_prom_env
:
3602 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3603 error_report("too many prom variables");
3606 prom_envs
[nb_prom_envs
] = optarg
;
3609 case QEMU_OPTION_old_param
:
3612 case QEMU_OPTION_rtc
:
3613 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3619 case QEMU_OPTION_tb_size
:
3621 error_report("TCG is disabled");
3624 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3625 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg
);
3627 case QEMU_OPTION_icount
:
3628 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3634 case QEMU_OPTION_incoming
:
3636 runstate_set(RUN_STATE_INMIGRATE
);
3640 case QEMU_OPTION_only_migratable
:
3641 only_migratable
= 1;
3643 case QEMU_OPTION_nodefaults
:
3646 case QEMU_OPTION_xen_domid
:
3647 if (!(xen_available())) {
3648 error_report("Option not supported for this target");
3651 xen_domid
= atoi(optarg
);
3653 case QEMU_OPTION_xen_attach
:
3654 if (!(xen_available())) {
3655 error_report("Option not supported for this target");
3658 xen_mode
= XEN_ATTACH
;
3660 case QEMU_OPTION_xen_domid_restrict
:
3661 if (!(xen_available())) {
3662 error_report("Option not supported for this target");
3665 xen_domid_restrict
= true;
3667 case QEMU_OPTION_trace
:
3669 trace_file
= trace_opt_parse(optarg
);
3671 case QEMU_OPTION_plugin
:
3672 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3674 case QEMU_OPTION_readconfig
:
3676 int ret
= qemu_read_config_file(optarg
);
3678 error_report("read config %s: %s", optarg
,
3684 case QEMU_OPTION_spice
:
3685 olist
= qemu_find_opts("spice");
3687 error_report("spice support is disabled");
3690 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3696 case QEMU_OPTION_writeconfig
:
3699 if (strcmp(optarg
, "-") == 0) {
3702 fp
= fopen(optarg
, "w");
3704 error_report("open %s: %s", optarg
,
3709 qemu_config_write(fp
);
3715 case QEMU_OPTION_qtest
:
3716 qtest_chrdev
= optarg
;
3718 case QEMU_OPTION_qtest_log
:
3721 case QEMU_OPTION_sandbox
:
3722 olist
= qemu_find_opts("sandbox");
3724 #ifndef CONFIG_SECCOMP
3725 error_report("-sandbox support is not enabled "
3726 "in this QEMU binary");
3731 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3736 case QEMU_OPTION_add_fd
:
3738 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3744 error_report("File descriptor passing is disabled on this "
3749 case QEMU_OPTION_object
:
3750 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
3756 case QEMU_OPTION_realtime
:
3757 warn_report("'-realtime mlock=...' is deprecated, please use "
3758 "'-overcommit mem-lock=...' instead");
3759 opts
= qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3764 /* Don't override the -overcommit option if set */
3765 enable_mlock
= enable_mlock
||
3766 qemu_opt_get_bool(opts
, "mlock", true);
3768 case QEMU_OPTION_overcommit
:
3769 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3774 /* Don't override the -realtime option if set */
3775 enable_mlock
= enable_mlock
||
3776 qemu_opt_get_bool(opts
, "mem-lock", false);
3777 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3779 case QEMU_OPTION_msg
:
3780 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3785 configure_msg(opts
);
3787 case QEMU_OPTION_dump_vmstate
:
3788 if (vmstate_dump_file
) {
3789 error_report("only one '-dump-vmstate' "
3790 "option may be given");
3793 vmstate_dump_file
= fopen(optarg
, "w");
3794 if (vmstate_dump_file
== NULL
) {
3795 error_report("open %s: %s", optarg
, strerror(errno
));
3799 case QEMU_OPTION_enable_sync_profile
:
3802 case QEMU_OPTION_nouserconfig
:
3803 /* Nothing to be parsed here. Especially, do not error out below. */
3806 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3807 error_report("Option not supported in this build");
3814 * Clear error location left behind by the loop.
3815 * Best done right after the loop. Do not insert code here!
3820 * Check for -cpu help and -device help before we call select_machine(),
3821 * which will return an error if the architecture has no default machine
3822 * type and the user did not specify one, so that the user doesn't need
3823 * to say '-cpu help -machine something'.
3825 if (cpu_option
&& is_help_option(cpu_option
)) {
3826 list_cpus(cpu_option
);
3830 if (qemu_opts_foreach(qemu_find_opts("device"),
3831 device_help_func
, NULL
, NULL
)) {
3835 user_register_global_props();
3837 replay_configure(icount_opts
);
3839 if (incoming
&& !preconfig_exit_requested
) {
3840 error_report("'preconfig' and 'incoming' options are "
3841 "mutually exclusive");
3845 configure_rtc(qemu_find_opts_singleton("rtc"));
3847 machine_class
= select_machine();
3848 object_set_machine_compat_props(machine_class
->compat_props
);
3850 have_custom_ram_size
= set_memory_options(&ram_slots
, &maxram_size
,
3854 rcu_disable_atfork();
3856 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
3857 error_reportf_err(err
, "cannot create PID file: ");
3861 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
3862 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
3864 if (qemu_init_main_loop(&main_loop_err
)) {
3865 error_report_err(main_loop_err
);
3869 #ifdef CONFIG_SECCOMP
3870 olist
= qemu_find_opts_err("sandbox", NULL
);
3872 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
3876 qemu_opts_foreach(qemu_find_opts("name"),
3877 parse_name
, NULL
, &error_fatal
);
3880 qemu_opts_foreach(qemu_find_opts("add-fd"),
3881 parse_add_fd
, NULL
, &error_fatal
);
3883 qemu_opts_foreach(qemu_find_opts("add-fd"),
3884 cleanup_add_fd
, NULL
, &error_fatal
);
3887 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
3888 if (machine_help_func(qemu_get_machine_opts(), current_machine
)) {
3891 object_property_add_child(object_get_root(), "machine",
3892 OBJECT(current_machine
));
3893 object_property_add_child(container_get(OBJECT(current_machine
),
3895 "sysbus", OBJECT(sysbus_get_default()));
3897 if (machine_class
->minimum_page_bits
) {
3898 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
3899 /* This would be a board error: specifying a minimum smaller than
3900 * a target's compile-time fixed setting.
3902 g_assert_not_reached();
3906 cpu_exec_init_all();
3908 if (machine_class
->hw_version
) {
3909 qemu_set_hw_version(machine_class
->hw_version
);
3912 if (!trace_init_backends()) {
3915 trace_init_file(trace_file
);
3917 /* Open the logfile at this point and set the log mask if necessary.
3919 qemu_set_log_filename(log_file
, &error_fatal
);
3922 mask
= qemu_str_to_log_mask(log_mask
);
3924 qemu_print_log_usage(stdout
);
3932 /* add configured firmware directories */
3933 dirs
= g_strsplit(CONFIG_QEMU_FIRMWAREPATH
, G_SEARCHPATH_SEPARATOR_S
, 0);
3934 for (i
= 0; dirs
[i
] != NULL
; i
++) {
3935 qemu_add_data_dir(dirs
[i
]);
3939 /* try to find datadir relative to the executable path */
3940 dir
= os_find_datadir();
3941 qemu_add_data_dir(dir
);
3944 /* add the datadir specified when building */
3945 qemu_add_data_dir(CONFIG_QEMU_DATADIR
);
3947 /* -L help lists the data directories and exits. */
3948 if (list_data_dirs
) {
3949 for (i
= 0; i
< data_dir_idx
; i
++) {
3950 printf("%s\n", data_dir
[i
]);
3955 /* machine_class: default to UP */
3956 machine_class
->max_cpus
= machine_class
->max_cpus
?: 1;
3957 machine_class
->min_cpus
= machine_class
->min_cpus
?: 1;
3958 machine_class
->default_cpus
= machine_class
->default_cpus
?: 1;
3960 /* default to machine_class->default_cpus */
3961 current_machine
->smp
.cpus
= machine_class
->default_cpus
;
3962 current_machine
->smp
.max_cpus
= machine_class
->default_cpus
;
3963 current_machine
->smp
.cores
= 1;
3964 current_machine
->smp
.threads
= 1;
3965 current_machine
->smp
.sockets
= 1;
3967 machine_class
->smp_parse(current_machine
,
3968 qemu_opts_find(qemu_find_opts("smp-opts"), NULL
));
3970 /* sanity-check smp_cpus and max_cpus against machine_class */
3971 if (current_machine
->smp
.cpus
< machine_class
->min_cpus
) {
3972 error_report("Invalid SMP CPUs %d. The min CPUs "
3973 "supported by machine '%s' is %d",
3974 current_machine
->smp
.cpus
,
3975 machine_class
->name
, machine_class
->min_cpus
);
3978 if (current_machine
->smp
.max_cpus
> machine_class
->max_cpus
) {
3979 error_report("Invalid SMP CPUs %d. The max CPUs "
3980 "supported by machine '%s' is %d",
3981 current_machine
->smp
.max_cpus
,
3982 machine_class
->name
, machine_class
->max_cpus
);
3989 val
= g_strdup_printf("%d", current_machine
->smp
.cpus
);
3990 object_register_sugar_prop("memory-backend", "prealloc-threads", val
);
3992 object_register_sugar_prop("memory-backend", "prealloc", "on");
3996 * Get the default machine options from the machine if it is not already
3997 * specified either by the configuration file or by the command line.
3999 if (machine_class
->default_machine_opts
) {
4000 qemu_opts_set_defaults(qemu_find_opts("machine"),
4001 machine_class
->default_machine_opts
, 0);
4004 /* process plugin before CPUs are created, but once -smp has been parsed */
4005 if (qemu_plugin_load_list(&plugin_list
)) {
4009 qemu_opts_foreach(qemu_find_opts("device"),
4010 default_driver_check
, NULL
, NULL
);
4011 qemu_opts_foreach(qemu_find_opts("global"),
4012 default_driver_check
, NULL
, NULL
);
4014 if (!vga_model
&& !default_vga
) {
4015 vga_interface_type
= VGA_DEVICE
;
4017 if (!has_defaults
|| machine_class
->no_serial
) {
4020 if (!has_defaults
|| machine_class
->no_parallel
) {
4021 default_parallel
= 0;
4023 if (!has_defaults
|| machine_class
->no_floppy
) {
4026 if (!has_defaults
|| machine_class
->no_cdrom
) {
4029 if (!has_defaults
|| machine_class
->no_sdcard
) {
4032 if (!has_defaults
) {
4033 default_monitor
= 0;
4038 if (is_daemonized()) {
4039 if (!preconfig_exit_requested
) {
4040 error_report("'preconfig' and 'daemonize' options are "
4041 "mutually exclusive");
4045 /* According to documentation and historically, -nographic redirects
4046 * serial port, parallel port and monitor to stdio, which does not work
4047 * with -daemonize. We can redirect these to null instead, but since
4048 * -nographic is legacy, let's just error out.
4049 * We disallow -nographic only if all other ports are not redirected
4050 * explicitly, to not break existing legacy setups which uses
4051 * -nographic _and_ redirects all ports explicitly - this is valid
4052 * usage, -nographic is just a no-op in this case.
4055 && (default_parallel
|| default_serial
|| default_monitor
)) {
4056 error_report("-nographic cannot be used with -daemonize");
4059 #ifdef CONFIG_CURSES
4060 if (dpy
.type
== DISPLAY_TYPE_CURSES
) {
4061 error_report("curses display cannot be used with -daemonize");
4068 if (default_parallel
)
4069 add_device_config(DEV_PARALLEL
, "null");
4070 if (default_serial
&& default_monitor
) {
4071 add_device_config(DEV_SERIAL
, "mon:stdio");
4074 add_device_config(DEV_SERIAL
, "stdio");
4075 if (default_monitor
)
4076 monitor_parse("stdio", "readline", false);
4080 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
4081 if (default_parallel
)
4082 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
4083 if (default_monitor
)
4084 monitor_parse("vc:80Cx24C", "readline", false);
4087 #if defined(CONFIG_VNC)
4088 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
4092 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
4093 if (!qemu_display_find_default(&dpy
)) {
4094 dpy
.type
= DISPLAY_TYPE_NONE
;
4095 #if defined(CONFIG_VNC)
4096 vnc_parse("localhost:0,to=99,id=default", &error_abort
);
4100 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
4101 dpy
.type
= DISPLAY_TYPE_NONE
;
4104 if ((alt_grab
|| ctrl_grab
) && dpy
.type
!= DISPLAY_TYPE_SDL
) {
4105 error_report("-alt-grab and -ctrl-grab are only valid "
4106 "for SDL, ignoring option");
4108 if (dpy
.has_window_close
&&
4109 (dpy
.type
!= DISPLAY_TYPE_GTK
&& dpy
.type
!= DISPLAY_TYPE_SDL
)) {
4110 error_report("-no-quit is only valid for GTK and SDL, "
4114 qemu_display_early_init(&dpy
);
4115 qemu_console_early_init();
4117 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
4118 #if defined(CONFIG_OPENGL)
4119 error_report("OpenGL is not supported by the display");
4121 error_report("OpenGL support is disabled");
4129 qemu_opts_foreach(qemu_find_opts("object"),
4130 user_creatable_add_opts_foreach
,
4131 object_create_initial
, &error_fatal
);
4133 qemu_opts_foreach(qemu_find_opts("chardev"),
4134 chardev_init_func
, NULL
, &error_fatal
);
4135 /* now chardevs have been created we may have semihosting to connect */
4136 qemu_semihosting_connect_chardevs();
4138 #ifdef CONFIG_VIRTFS
4139 qemu_opts_foreach(qemu_find_opts("fsdev"),
4140 fsdev_init_func
, NULL
, &error_fatal
);
4143 /* spice needs the timers to be initialized by this point */
4144 /* spice must initialize before audio as it changes the default auiodev */
4148 * Note: we need to create audio and block backends before
4149 * machine_set_property(), so machine properties can refer to
4152 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
4153 audio_init_audiodevs();
4155 machine_opts
= qemu_get_machine_opts();
4156 qemu_opt_foreach(machine_opts
, machine_set_property
, current_machine
,
4158 current_machine
->ram_size
= ram_size
;
4159 current_machine
->maxram_size
= maxram_size
;
4160 current_machine
->ram_slots
= ram_slots
;
4163 * Note: uses machine properties such as kernel-irqchip, must run
4164 * after machine_set_property().
4166 configure_accelerators(argv
[0]);
4169 * Beware, QOM objects created before this point miss global and
4170 * compat properties.
4172 * Global properties get set up by qdev_prop_register_global(),
4173 * called from user_register_global_props(), and certain option
4174 * desugaring. Also in CPU feature desugaring (buried in
4175 * parse_cpu_option()), which happens below this point, but may
4176 * only target the CPU type, which can only be created after
4177 * parse_cpu_option() returned the type.
4179 * Machine compat properties: object_set_machine_compat_props().
4180 * Accelerator compat props: object_set_accelerator_compat_props(),
4181 * called from configure_accelerator().
4184 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
4185 error_report("Machine type '%s' is deprecated: %s",
4186 machine_class
->name
, machine_class
->deprecation_reason
);
4190 * Note: creates a QOM object, must run only after global and
4191 * compat properties have been set up.
4193 migration_object_init();
4196 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
4199 machine_opts
= qemu_get_machine_opts();
4200 kernel_filename
= qemu_opt_get(machine_opts
, "kernel");
4201 initrd_filename
= qemu_opt_get(machine_opts
, "initrd");
4202 kernel_cmdline
= qemu_opt_get(machine_opts
, "append");
4203 bios_name
= qemu_opt_get(machine_opts
, "firmware");
4205 opts
= qemu_opts_find(qemu_find_opts("boot-opts"), NULL
);
4207 boot_order
= qemu_opt_get(opts
, "order");
4209 validate_bootdevices(boot_order
, &error_fatal
);
4212 boot_once
= qemu_opt_get(opts
, "once");
4214 validate_bootdevices(boot_once
, &error_fatal
);
4217 boot_menu
= qemu_opt_get_bool(opts
, "menu", boot_menu
);
4218 boot_strict
= qemu_opt_get_bool(opts
, "strict", false);
4222 boot_order
= machine_class
->default_boot_order
;
4225 if (!kernel_cmdline
) {
4226 kernel_cmdline
= "";
4227 current_machine
->kernel_cmdline
= (char *)kernel_cmdline
;
4230 linux_boot
= (kernel_filename
!= NULL
);
4232 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4233 error_report("-append only allowed with -kernel option");
4237 if (!linux_boot
&& initrd_filename
!= NULL
) {
4238 error_report("-initrd only allowed with -kernel option");
4242 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename
) {
4243 /* fall back to the -kernel/-append */
4244 semihosting_arg_fallback(kernel_filename
, kernel_cmdline
);
4250 QemuOptsList
*net
= qemu_find_opts("net");
4251 qemu_opts_set(net
, NULL
, "type", "nic", &error_abort
);
4253 qemu_opts_set(net
, NULL
, "type", "user", &error_abort
);
4257 if (net_init_clients(&err
) < 0) {
4258 error_report_err(err
);
4262 qemu_opts_foreach(qemu_find_opts("object"),
4263 user_creatable_add_opts_foreach
,
4264 object_create_delayed
, &error_fatal
);
4270 dirty_bitmap_mig_init();
4272 qemu_opts_foreach(qemu_find_opts("mon"),
4273 mon_init_func
, NULL
, &error_fatal
);
4275 /* connect semihosting console input if requested */
4276 qemu_semihosting_console_init();
4278 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4280 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4282 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4285 /* If no default VGA is requested, the default is "none". */
4287 vga_model
= get_default_vga_model(machine_class
);
4290 select_vgahw(machine_class
, vga_model
);
4294 i
= select_watchdog(watchdog
);
4296 exit (i
== 1 ? 1 : 0);
4299 /* This checkpoint is required by replay to separate prior clock
4300 reading from the other reads, because timer polling functions query
4301 clock values from the log. */
4302 replay_checkpoint(CHECKPOINT_INIT
);
4303 qdev_machine_init();
4305 current_machine
->boot_order
= boot_order
;
4307 /* parse features once if machine provides default cpu_type */
4308 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
4310 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
4313 if (current_machine
->ram_memdev_id
) {
4315 ram_addr_t backend_size
;
4317 backend
= object_resolve_path_type(current_machine
->ram_memdev_id
,
4318 TYPE_MEMORY_BACKEND
, NULL
);
4320 error_report("Memory backend '%s' not found",
4321 current_machine
->ram_memdev_id
);
4324 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
4325 if (have_custom_ram_size
&& backend_size
!= ram_size
) {
4326 error_report("Size specified by -m option must match size of "
4327 "explicitly specified 'memory-backend' property");
4331 error_report("'-mem-path' can't be used together with"
4332 "'-machine memory-backend'");
4335 ram_size
= backend_size
;
4338 if (!xen_enabled()) {
4339 /* On 32-bit hosts, QEMU is limited by virtual address space */
4340 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
4341 error_report("at most 2047 MB RAM can be simulated");
4346 parse_numa_opts(current_machine
);
4348 /* do monitor/qmp handling at preconfig state if requested */
4351 if (machine_class
->default_ram_id
&& current_machine
->ram_size
&&
4352 numa_uses_legacy_mem() && !current_machine
->ram_memdev_id
) {
4353 create_default_memdev(current_machine
, mem_path
);
4356 /* from here on runstate is RUN_STATE_PRELAUNCH */
4357 machine_run_board_init(current_machine
);
4360 * TODO To drop support for deprecated bogus if=..., move
4361 * drive_check_orphaned() here, replacing this call. Also drop
4362 * its deprecation warning, along with DriveInfo member
4363 * @claimed_by_board.
4365 drive_mark_claimed_by_board();
4371 if (hax_enabled()) {
4375 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4376 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
4378 /* init USB devices */
4379 if (machine_usb(current_machine
)) {
4380 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4384 /* init generic devices */
4385 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
4386 qemu_opts_foreach(qemu_find_opts("device"),
4387 device_init_func
, NULL
, &error_fatal
);
4389 cpu_synchronize_all_post_init();
4391 rom_reset_order_override();
4393 /* Did we create any drives that we failed to create a device for? */
4394 drive_check_orphaned();
4396 /* Don't warn about the default network setup that you get if
4397 * no command line -net or -netdev options are specified. There
4398 * are two cases that we would otherwise complain about:
4399 * (1) board doesn't support a NIC but the implicit "-net nic"
4401 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4402 * sets up a nic that isn't connected to anything.
4404 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
4405 net_check_clients();
4409 qemu_boot_set(boot_once
, &error_fatal
);
4410 qemu_register_reset(restore_boot_order
, g_strdup(boot_order
));
4413 /* init local displays */
4414 ds
= init_displaystate();
4415 qemu_display_init(ds
, &dpy
);
4417 /* must be after terminal init, SDL library changes signal handlers */
4418 os_setup_signal_handling();
4420 /* init remote displays */
4422 qemu_opts_foreach(qemu_find_opts("vnc"),
4423 vnc_init_func
, NULL
, &error_fatal
);
4427 qemu_spice_display_init();
4430 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
4434 qdev_machine_creation_done();
4436 /* TODO: once all bus devices are qdevified, this should be done
4437 * when bus is created by qdev.c */
4439 * TODO: If we had a main 'reset container' that the whole system
4440 * lived in, we could reset that using the multi-phase reset
4441 * APIs. For the moment, we just reset the sysbus, which will cause
4442 * all devices hanging off it (and all their child buses, recursively)
4443 * to be reset. Note that this will *not* reset any Device objects
4444 * which are not attached to some part of the qbus tree!
4446 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
4447 qemu_run_machine_init_done_notifiers();
4449 if (rom_check_and_register_reset() != 0) {
4450 error_report("rom check and register reset failed");
4456 /* This checkpoint is required by replay to separate prior clock
4457 reading from the other reads, because timer polling functions query
4458 clock values from the log. */
4459 replay_checkpoint(CHECKPOINT_RESET
);
4460 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
4461 register_global_state();
4463 Error
*local_err
= NULL
;
4464 if (load_snapshot(loadvm
, &local_err
) < 0) {
4465 error_report_err(local_err
);
4470 if (replay_mode
!= REPLAY_MODE_NONE
) {
4471 replay_vmstate_init();
4474 qdev_prop_check_globals();
4475 if (vmstate_dump_file
) {
4477 dump_vmstate_json_to_file(vmstate_dump_file
);
4482 Error
*local_err
= NULL
;
4483 qemu_start_incoming_migration(incoming
, &local_err
);
4485 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
4488 } else if (autostart
) {
4492 accel_setup_post(current_machine
);
4498 void qemu_cleanup(void)
4500 gdbserver_cleanup();
4503 * cleaning up the migration object cancels any existing migration
4504 * try to do this early so that it also stops using devices.
4506 migration_shutdown();
4509 * We must cancel all block jobs while the block layer is drained,
4510 * or cancelling will be affected by throttling and thus may block
4511 * for an extended period of time.
4512 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4513 * it in the drained section.
4514 * We do not need to end this section, because we do not want any
4515 * requests happening from here on anyway.
4517 bdrv_drain_all_begin();
4519 /* No more vcpu or device emulation activity beyond this point */
4523 job_cancel_sync_all();
4528 /* vhost-user must be cleaned up before chardevs. */
4534 user_creatable_cleanup();
4535 /* TODO: unref root container, check all devices are ok */