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 "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
38 #if defined(__APPLE__) || defined(main)
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
43 return qemu_main(argc, argv, NULL);
46 #define main qemu_main
48 #endif /* CONFIG_SDL */
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
107 #include "fsdev/qemu-fsdev.h"
109 #include "sysemu/qtest.h"
111 #include "disas/disas.h"
114 #include "slirp/libslirp.h"
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 const char* keyboard_layout = NULL;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
146 NICInfo nd_table[MAX_NICS];
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static DisplayOptions dpy;
154 Chardev *serial_hds[MAX_SERIAL_PORTS];
155 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
156 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
157 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
158 int win2k_install_hack = 0;
161 unsigned int max_cpus;
164 int acpi_enabled = 1;
167 static int no_reboot;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 const char *qemu_name;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
186 int icount_align_option;
188 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
189 * little-endian "wire format" described in the SMBIOS 2.6 specification.
194 static NotifierList exit_notifiers =
195 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
197 static NotifierList machine_init_done_notifiers =
198 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202 enum xen_mode xen_mode = XEN_EMULATE;
203 bool xen_domid_restrict;
205 static int has_defaults = 1;
206 static int default_serial = 1;
207 static int default_parallel = 1;
208 static int default_virtcon = 1;
209 static int default_sclp = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
231 { .driver = "virtio-serial", .flag = &default_virtcon },
232 { .driver = "VGA", .flag = &default_vga },
233 { .driver = "isa-vga", .flag = &default_vga },
234 { .driver = "cirrus-vga", .flag = &default_vga },
235 { .driver = "isa-cirrus-vga", .flag = &default_vga },
236 { .driver = "vmware-svga", .flag = &default_vga },
237 { .driver = "qxl-vga", .flag = &default_vga },
238 { .driver = "virtio-vga", .flag = &default_vga },
241 static QemuOptsList qemu_rtc_opts = {
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
247 .type = QEMU_OPT_STRING,
250 .type = QEMU_OPT_STRING,
253 .type = QEMU_OPT_STRING,
255 { /* end of list */ }
259 static QemuOptsList qemu_sandbox_opts = {
261 .implied_opt_name = "enable",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
266 .type = QEMU_OPT_BOOL,
270 .type = QEMU_OPT_STRING,
273 .name = "elevateprivileges",
274 .type = QEMU_OPT_STRING,
278 .type = QEMU_OPT_STRING,
281 .name = "resourcecontrol",
282 .type = QEMU_OPT_STRING,
284 { /* end of list */ }
288 static QemuOptsList qemu_option_rom_opts = {
289 .name = "option-rom",
290 .implied_opt_name = "romfile",
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
295 .type = QEMU_OPT_NUMBER,
298 .type = QEMU_OPT_STRING,
300 { /* end of list */ }
304 static QemuOptsList qemu_machine_opts = {
306 .implied_opt_name = "type",
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
311 * no elements => accept any
312 * sanity checking will happen later
313 * when setting machine properties
319 static QemuOptsList qemu_accel_opts = {
321 .implied_opt_name = "accel",
322 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
327 .type = QEMU_OPT_STRING,
328 .help = "Select the type of accelerator",
332 .type = QEMU_OPT_STRING,
333 .help = "Enable/disable multi-threaded TCG",
335 { /* end of list */ }
339 static QemuOptsList qemu_boot_opts = {
341 .implied_opt_name = "order",
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
347 .type = QEMU_OPT_STRING,
350 .type = QEMU_OPT_STRING,
353 .type = QEMU_OPT_BOOL,
356 .type = QEMU_OPT_STRING,
358 .name = "splash-time",
359 .type = QEMU_OPT_STRING,
361 .name = "reboot-timeout",
362 .type = QEMU_OPT_STRING,
365 .type = QEMU_OPT_BOOL,
371 static QemuOptsList qemu_add_fd_opts = {
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
377 .type = QEMU_OPT_NUMBER,
378 .help = "file descriptor of which a duplicate is added to fd set",
381 .type = QEMU_OPT_NUMBER,
382 .help = "ID of the fd set to add fd to",
385 .type = QEMU_OPT_STRING,
386 .help = "free-form string used to describe fd",
388 { /* end of list */ }
392 static QemuOptsList qemu_object_opts = {
394 .implied_opt_name = "qom-type",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
401 static QemuOptsList qemu_tpmdev_opts = {
403 .implied_opt_name = "type",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
406 /* options are defined in the TPM backends */
407 { /* end of list */ }
411 static QemuOptsList qemu_realtime_opts = {
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
417 .type = QEMU_OPT_BOOL,
419 { /* end of list */ }
423 static QemuOptsList qemu_msg_opts = {
425 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
429 .type = QEMU_OPT_BOOL,
431 { /* end of list */ }
435 static QemuOptsList qemu_name_opts = {
437 .implied_opt_name = "guest",
439 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
443 .type = QEMU_OPT_STRING,
444 .help = "Sets the name of the guest.\n"
445 "This name will be displayed in the SDL window caption.\n"
446 "The name will also be used for the VNC server",
449 .type = QEMU_OPT_STRING,
450 .help = "Sets the name of the QEMU process, as shown in top etc",
452 .name = "debug-threads",
453 .type = QEMU_OPT_BOOL,
454 .help = "When enabled, name the individual threads; defaults off.\n"
455 "NOTE: The thread names are for debugging and not a\n"
458 { /* End of list */ }
462 static QemuOptsList qemu_mem_opts = {
464 .implied_opt_name = "size",
465 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
470 .type = QEMU_OPT_SIZE,
474 .type = QEMU_OPT_NUMBER,
478 .type = QEMU_OPT_SIZE,
480 { /* end of list */ }
484 static QemuOptsList qemu_icount_opts = {
486 .implied_opt_name = "shift",
488 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
492 .type = QEMU_OPT_STRING,
495 .type = QEMU_OPT_BOOL,
498 .type = QEMU_OPT_BOOL,
501 .type = QEMU_OPT_STRING,
504 .type = QEMU_OPT_STRING,
506 .name = "rrsnapshot",
507 .type = QEMU_OPT_STRING,
509 { /* end of list */ }
513 static QemuOptsList qemu_semihosting_config_opts = {
514 .name = "semihosting-config",
515 .implied_opt_name = "enable",
516 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
520 .type = QEMU_OPT_BOOL,
523 .type = QEMU_OPT_STRING,
526 .type = QEMU_OPT_STRING,
528 { /* end of list */ }
532 static QemuOptsList qemu_fw_cfg_opts = {
534 .implied_opt_name = "name",
535 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
539 .type = QEMU_OPT_STRING,
540 .help = "Sets the fw_cfg name of the blob to be inserted",
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the name of the file from which\n"
545 "the fw_cfg blob will be loaded",
548 .type = QEMU_OPT_STRING,
549 .help = "Sets content of the blob to be inserted from a string",
551 { /* end of list */ }
556 * Get machine options
558 * Returns: machine options (never null).
560 QemuOpts *qemu_get_machine_opts(void)
562 return qemu_find_opts_singleton("machine");
565 const char *qemu_get_vm_name(void)
570 static void res_free(void)
572 g_free(boot_splash_filedata);
573 boot_splash_filedata = NULL;
576 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
578 const char *driver = qemu_opt_get(opts, "driver");
583 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
584 if (strcmp(default_list[i].driver, driver) != 0)
586 *(default_list[i].flag) = 0;
591 /***********************************************************/
594 static RunState current_run_state = RUN_STATE_PRELAUNCH;
596 /* We use RUN_STATE__MAX but any invalid value will do */
597 static RunState vmstop_requested = RUN_STATE__MAX;
598 static QemuMutex vmstop_lock;
603 } RunStateTransition;
605 static const RunStateTransition runstate_transitions_def[] = {
607 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
608 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
611 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
613 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
616 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
618 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
628 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
629 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
633 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_PAUSED, RUN_STATE_COLO},
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
642 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
652 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
653 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
655 { RUN_STATE_COLO, RUN_STATE_RUNNING },
657 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
658 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
660 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
661 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
664 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
665 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
666 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
667 { RUN_STATE_RUNNING, RUN_STATE_COLO},
669 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
671 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
675 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
676 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
677 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
678 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
682 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
683 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
685 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
691 { RUN_STATE__MAX, RUN_STATE__MAX },
694 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
696 bool runstate_check(RunState state)
698 return current_run_state == state;
701 bool runstate_store(char *str, size_t size)
703 const char *state = RunState_str(current_run_state);
704 size_t len = strlen(state) + 1;
709 memcpy(str, state, len);
713 static void runstate_init(void)
715 const RunStateTransition *p;
717 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
718 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
719 runstate_valid_transitions[p->from][p->to] = true;
722 qemu_mutex_init(&vmstop_lock);
725 /* This function will abort() on invalid state transitions */
726 void runstate_set(RunState new_state)
728 assert(new_state < RUN_STATE__MAX);
730 if (current_run_state == new_state) {
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
740 trace_runstate_set(new_state);
741 current_run_state = new_state;
744 int runstate_is_running(void)
746 return runstate_check(RUN_STATE_RUNNING);
749 bool runstate_needs_reset(void)
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
755 StatusInfo *qmp_query_status(Error **errp)
757 StatusInfo *info = g_malloc0(sizeof(*info));
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
766 bool qemu_vmstop_requested(RunState *r)
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
775 void qemu_system_vmstop_request_prepare(void)
777 qemu_mutex_lock(&vmstop_lock);
780 void qemu_system_vmstop_request(RunState state)
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
787 /***********************************************************/
788 /* real time host monotonic timer */
790 static time_t qemu_time(void)
792 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
795 /***********************************************************/
796 /* host time/date access */
797 void qemu_get_timedate(struct tm *tm, int offset)
799 time_t ti = qemu_time();
802 if (rtc_date_offset == -1) {
806 localtime_r(&ti, tm);
808 ti -= rtc_date_offset;
813 int qemu_timedate_diff(struct tm *tm)
817 if (rtc_date_offset == -1)
819 seconds = mktimegm(tm);
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
826 seconds = mktimegm(tm) + rtc_date_offset;
828 return seconds - qemu_time();
831 static void configure_rtc_date_offset(const char *startdate, int legacy)
833 time_t rtc_start_date;
836 if (!strcmp(startdate, "now") && legacy) {
837 rtc_date_offset = -1;
839 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
847 } else if (sscanf(startdate, "%d-%d-%d",
859 rtc_start_date = mktimegm(&tm);
860 if (rtc_start_date == -1) {
862 error_report("invalid date format");
863 error_printf("valid formats: "
864 "'2006-06-17T16:01:21' or '2006-06-17'\n");
867 rtc_date_offset = qemu_time() - rtc_start_date;
871 static void configure_rtc(QemuOpts *opts)
875 value = qemu_opt_get(opts, "base");
877 if (!strcmp(value, "utc")) {
879 } else if (!strcmp(value, "localtime")) {
880 Error *blocker = NULL;
882 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
883 "-rtc base=localtime");
884 replay_add_blocker(blocker);
886 configure_rtc_date_offset(value, 0);
889 value = qemu_opt_get(opts, "clock");
891 if (!strcmp(value, "host")) {
892 rtc_clock = QEMU_CLOCK_HOST;
893 } else if (!strcmp(value, "rt")) {
894 rtc_clock = QEMU_CLOCK_REALTIME;
895 } else if (!strcmp(value, "vm")) {
896 rtc_clock = QEMU_CLOCK_VIRTUAL;
898 error_report("invalid option value '%s'", value);
902 value = qemu_opt_get(opts, "driftfix");
904 if (!strcmp(value, "slew")) {
905 static GlobalProperty slew_lost_ticks = {
906 .driver = "mc146818rtc",
907 .property = "lost_tick_policy",
911 qdev_prop_register_global(&slew_lost_ticks);
912 } else if (!strcmp(value, "none")) {
913 /* discard is default */
915 error_report("invalid option value '%s'", value);
921 /***********************************************************/
922 /* Bluetooth support */
925 static struct HCIInfo *hci_table[MAX_NICS];
927 struct HCIInfo *qemu_next_hci(void)
929 if (cur_hci == nb_hcis)
932 return hci_table[cur_hci++];
935 static int bt_hci_parse(const char *str)
940 if (nb_hcis >= MAX_NICS) {
941 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
954 bdaddr.b[5] = 0x56 + nb_hcis;
955 hci->bdaddr_set(hci, bdaddr.b);
957 hci_table[nb_hcis++] = hci;
962 static void bt_vhci_add(int vlan_id)
964 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
967 warn_report("adding a VHCI to an empty scatternet %i",
970 bt_vhci_init(bt_new_hci(vlan));
973 static struct bt_device_s *bt_device_add(const char *opt)
975 struct bt_scatternet_s *vlan;
977 char *endp = strstr(opt, ",vlan=");
978 int len = (endp ? endp - opt : strlen(opt)) + 1;
981 pstrcpy(devname, MIN(sizeof(devname), len), opt);
984 vlan_id = strtol(endp + 6, &endp, 0);
986 error_report("unrecognised bluetooth vlan Id");
991 vlan = qemu_find_bt_vlan(vlan_id);
994 warn_report("adding a slave device to an empty scatternet %i",
997 if (!strcmp(devname, "keyboard"))
998 return bt_keyboard_init(vlan);
1000 error_report("unsupported bluetooth device '%s'", devname);
1004 static int bt_parse(const char *opt)
1006 const char *endp, *p;
1009 if (strstart(opt, "hci", &endp)) {
1010 if (!*endp || *endp == ',') {
1012 if (!strstart(endp, ",vlan=", 0))
1015 return bt_hci_parse(opt);
1017 } else if (strstart(opt, "vhci", &endp)) {
1018 if (!*endp || *endp == ',') {
1020 if (strstart(endp, ",vlan=", &p)) {
1021 vlan = strtol(p, (char **) &endp, 0);
1023 error_report("bad scatternet '%s'", p);
1027 error_report("bad parameter '%s'", endp + 1);
1036 } else if (strstart(opt, "device:", &endp))
1037 return !bt_device_add(endp);
1039 error_report("bad bluetooth parameter '%s'", opt);
1043 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1045 if (qemu_opt_get_bool(opts, "enable", false)) {
1046 #ifdef CONFIG_SECCOMP
1047 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1048 | QEMU_SECCOMP_SET_OBSOLETE;
1049 const char *value = NULL;
1051 value = qemu_opt_get(opts, "obsolete");
1053 if (g_str_equal(value, "allow")) {
1054 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1055 } else if (g_str_equal(value, "deny")) {
1056 /* this is the default option, this if is here
1057 * to provide a little bit of consistency for
1058 * the command line */
1060 error_report("invalid argument for obsolete");
1065 value = qemu_opt_get(opts, "elevateprivileges");
1067 if (g_str_equal(value, "deny")) {
1068 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1069 } else if (g_str_equal(value, "children")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1072 /* calling prctl directly because we're
1073 * not sure if host has CAP_SYS_ADMIN set*/
1074 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1075 error_report("failed to set no_new_privs "
1079 } else if (g_str_equal(value, "allow")) {
1082 error_report("invalid argument for elevateprivileges");
1087 value = qemu_opt_get(opts, "spawn");
1089 if (g_str_equal(value, "deny")) {
1090 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1091 } else if (g_str_equal(value, "allow")) {
1094 error_report("invalid argument for spawn");
1099 value = qemu_opt_get(opts, "resourcecontrol");
1101 if (g_str_equal(value, "deny")) {
1102 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1103 } else if (g_str_equal(value, "allow")) {
1106 error_report("invalid argument for resourcecontrol");
1111 if (seccomp_start(seccomp_opts) < 0) {
1112 error_report("failed to install seccomp syscall filter "
1117 error_report("seccomp support is disabled");
1125 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1127 const char *proc_name;
1129 if (qemu_opt_get(opts, "debug-threads")) {
1130 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1132 qemu_name = qemu_opt_get(opts, "guest");
1134 proc_name = qemu_opt_get(opts, "process");
1136 os_set_proc_name(proc_name);
1142 bool defaults_enabled(void)
1144 return has_defaults;
1148 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1150 int fd, dupfd, flags;
1152 const char *fd_opaque = NULL;
1155 fd = qemu_opt_get_number(opts, "fd", -1);
1156 fdset_id = qemu_opt_get_number(opts, "set", -1);
1157 fd_opaque = qemu_opt_get(opts, "opaque");
1160 error_report("fd option is required and must be non-negative");
1164 if (fd <= STDERR_FILENO) {
1165 error_report("fd cannot be a standard I/O stream");
1170 * All fds inherited across exec() necessarily have FD_CLOEXEC
1171 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1173 flags = fcntl(fd, F_GETFD);
1174 if (flags == -1 || (flags & FD_CLOEXEC)) {
1175 error_report("fd is not valid or already in use");
1180 error_report("set option is required and must be non-negative");
1184 #ifdef F_DUPFD_CLOEXEC
1185 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1189 qemu_set_cloexec(dupfd);
1193 error_report("error duplicating fd: %s", strerror(errno));
1197 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1198 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1205 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1209 fd = qemu_opt_get_number(opts, "fd", -1);
1216 /***********************************************************/
1217 /* QEMU Block devices */
1219 #define HD_OPTS "media=disk"
1220 #define CDROM_OPTS "media=cdrom"
1222 #define PFLASH_OPTS ""
1226 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1228 BlockInterfaceType *block_default_type = opaque;
1230 return drive_new(opts, *block_default_type) == NULL;
1233 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1235 if (qemu_opt_get(opts, "snapshot") == NULL) {
1236 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1241 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1242 int index, const char *optstr)
1247 if (!enable || drive_get_by_index(type, index)) {
1251 opts = drive_add(type, index, NULL, optstr);
1253 drive_enable_snapshot(NULL, opts, NULL);
1256 dinfo = drive_new(opts, type);
1260 dinfo->is_default = true;
1264 static QemuOptsList qemu_smp_opts = {
1266 .implied_opt_name = "cpus",
1267 .merge_lists = true,
1268 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1272 .type = QEMU_OPT_NUMBER,
1275 .type = QEMU_OPT_NUMBER,
1278 .type = QEMU_OPT_NUMBER,
1281 .type = QEMU_OPT_NUMBER,
1284 .type = QEMU_OPT_NUMBER,
1286 { /*End of list */ }
1290 static void smp_parse(QemuOpts *opts)
1293 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1294 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1295 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1296 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1298 /* compute missing values, prefer sockets over cores over threads */
1299 if (cpus == 0 || sockets == 0) {
1300 sockets = sockets > 0 ? sockets : 1;
1301 cores = cores > 0 ? cores : 1;
1302 threads = threads > 0 ? threads : 1;
1304 cpus = cores * threads * sockets;
1306 } else if (cores == 0) {
1307 threads = threads > 0 ? threads : 1;
1308 cores = cpus / (sockets * threads);
1309 cores = cores > 0 ? cores : 1;
1310 } else if (threads == 0) {
1311 threads = cpus / (cores * sockets);
1312 threads = threads > 0 ? threads : 1;
1313 } else if (sockets * cores * threads < cpus) {
1314 error_report("cpu topology: "
1315 "sockets (%u) * cores (%u) * threads (%u) < "
1317 sockets, cores, threads, cpus);
1321 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1323 if (max_cpus < cpus) {
1324 error_report("maxcpus must be equal to or greater than smp");
1328 if (sockets * cores * threads > max_cpus) {
1329 error_report("cpu topology: "
1330 "sockets (%u) * cores (%u) * threads (%u) > "
1332 sockets, cores, threads, max_cpus);
1338 smp_threads = threads;
1342 Error *blocker = NULL;
1343 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1344 replay_add_blocker(blocker);
1348 static void realtime_init(void)
1351 if (os_mlock() < 0) {
1352 error_report("locking memory failed");
1359 static void configure_msg(QemuOpts *opts)
1361 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1364 /***********************************************************/
1367 typedef struct SemihostingConfig {
1369 SemihostingTarget target;
1372 const char *cmdline; /* concatenated argv */
1373 } SemihostingConfig;
1375 static SemihostingConfig semihosting;
1377 bool semihosting_enabled(void)
1379 return semihosting.enabled;
1382 SemihostingTarget semihosting_get_target(void)
1384 return semihosting.target;
1387 const char *semihosting_get_arg(int i)
1389 if (i >= semihosting.argc) {
1392 return semihosting.argv[i];
1395 int semihosting_get_argc(void)
1397 return semihosting.argc;
1400 const char *semihosting_get_cmdline(void)
1402 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1403 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1405 return semihosting.cmdline;
1408 static int add_semihosting_arg(void *opaque,
1409 const char *name, const char *val,
1412 SemihostingConfig *s = opaque;
1413 if (strcmp(name, "arg") == 0) {
1415 /* one extra element as g_strjoinv() expects NULL-terminated array */
1416 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1417 s->argv[s->argc - 1] = val;
1418 s->argv[s->argc] = NULL;
1423 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1424 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1429 add_semihosting_arg(&semihosting, "arg", file, NULL);
1431 /* split -append and initialize argv[1..n] */
1432 cmd_token = strtok(g_strdup(cmd), " ");
1434 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1435 cmd_token = strtok(NULL, " ");
1439 /* Now we still need this for compatibility with XEN. */
1440 bool has_igd_gfx_passthru;
1441 static void igd_gfx_passthru(void)
1443 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1446 /***********************************************************/
1449 static int usb_device_add(const char *devname)
1451 USBDevice *dev = NULL;
1453 if (!machine_usb(current_machine)) {
1457 dev = usbdevice_create(devname);
1464 static int usb_parse(const char *cmdline)
1467 r = usb_device_add(cmdline);
1469 error_report("could not add USB device '%s'", cmdline);
1474 /***********************************************************/
1475 /* machine registration */
1477 MachineState *current_machine;
1479 static MachineClass *find_machine(const char *name)
1481 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1482 MachineClass *mc = NULL;
1484 for (el = machines; el; el = el->next) {
1485 MachineClass *temp = el->data;
1487 if (!strcmp(temp->name, name)) {
1492 !strcmp(temp->alias, name)) {
1498 g_slist_free(machines);
1502 MachineClass *find_default_machine(void)
1504 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1505 MachineClass *mc = NULL;
1507 for (el = machines; el; el = el->next) {
1508 MachineClass *temp = el->data;
1510 if (temp->is_default) {
1516 g_slist_free(machines);
1520 MachineInfoList *qmp_query_machines(Error **errp)
1522 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1523 MachineInfoList *mach_list = NULL;
1525 for (el = machines; el; el = el->next) {
1526 MachineClass *mc = el->data;
1527 MachineInfoList *entry;
1530 info = g_malloc0(sizeof(*info));
1531 if (mc->is_default) {
1532 info->has_is_default = true;
1533 info->is_default = true;
1537 info->has_alias = true;
1538 info->alias = g_strdup(mc->alias);
1541 info->name = g_strdup(mc->name);
1542 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1543 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1545 entry = g_malloc0(sizeof(*entry));
1546 entry->value = info;
1547 entry->next = mach_list;
1551 g_slist_free(machines);
1555 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1557 ObjectProperty *prop;
1558 ObjectPropertyIterator iter;
1560 if (!qemu_opt_has_help_opt(opts)) {
1564 object_property_iter_init(&iter, OBJECT(machine));
1565 while ((prop = object_property_iter_next(&iter))) {
1570 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1571 prop->name, prop->type);
1572 if (prop->description) {
1573 error_printf(" (%s)\n", prop->description);
1582 /***********************************************************/
1583 /* main execution loop */
1585 struct vm_change_state_entry {
1586 VMChangeStateHandler *cb;
1588 QLIST_ENTRY (vm_change_state_entry) entries;
1591 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1593 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1596 VMChangeStateEntry *e;
1598 e = g_malloc0(sizeof (*e));
1602 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1606 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1608 QLIST_REMOVE (e, entries);
1612 void vm_state_notify(int running, RunState state)
1614 VMChangeStateEntry *e, *next;
1616 trace_vm_state_notify(running, state);
1618 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1619 e->cb(e->opaque, running, state);
1623 static ShutdownCause reset_requested;
1624 static ShutdownCause shutdown_requested;
1625 static int shutdown_signal;
1626 static pid_t shutdown_pid;
1627 static int powerdown_requested;
1628 static int debug_requested;
1629 static int suspend_requested;
1630 static WakeupReason wakeup_reason;
1631 static NotifierList powerdown_notifiers =
1632 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1633 static NotifierList suspend_notifiers =
1634 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1635 static NotifierList wakeup_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1637 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1639 ShutdownCause qemu_shutdown_requested_get(void)
1641 return shutdown_requested;
1644 ShutdownCause qemu_reset_requested_get(void)
1646 return reset_requested;
1649 static int qemu_shutdown_requested(void)
1651 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1654 static void qemu_kill_report(void)
1656 if (!qtest_driver() && shutdown_signal) {
1657 if (shutdown_pid == 0) {
1658 /* This happens for eg ^C at the terminal, so it's worth
1659 * avoiding printing an odd message in that case.
1661 error_report("terminating on signal %d", shutdown_signal);
1663 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1665 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1666 shutdown_signal, shutdown_pid,
1667 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1668 g_free(shutdown_cmd);
1670 shutdown_signal = 0;
1674 static ShutdownCause qemu_reset_requested(void)
1676 ShutdownCause r = reset_requested;
1678 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1679 reset_requested = SHUTDOWN_CAUSE_NONE;
1682 return SHUTDOWN_CAUSE_NONE;
1685 static int qemu_suspend_requested(void)
1687 int r = suspend_requested;
1688 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1689 suspend_requested = 0;
1695 static WakeupReason qemu_wakeup_requested(void)
1697 return wakeup_reason;
1700 static int qemu_powerdown_requested(void)
1702 int r = powerdown_requested;
1703 powerdown_requested = 0;
1707 static int qemu_debug_requested(void)
1709 int r = debug_requested;
1710 debug_requested = 0;
1715 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1717 void qemu_system_reset(ShutdownCause reason)
1721 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1723 cpu_synchronize_all_states();
1725 if (mc && mc->reset) {
1728 qemu_devices_reset();
1731 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1734 cpu_synchronize_all_post_reset();
1737 void qemu_system_guest_panicked(GuestPanicInformation *info)
1739 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1742 current_cpu->crash_occurred = true;
1744 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1745 !!info, info, &error_abort);
1746 vm_stop(RUN_STATE_GUEST_PANICKED);
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1749 !!info, info, &error_abort);
1750 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1754 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1755 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1756 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1757 info->u.hyper_v.arg1,
1758 info->u.hyper_v.arg2,
1759 info->u.hyper_v.arg3,
1760 info->u.hyper_v.arg4,
1761 info->u.hyper_v.arg5);
1763 qapi_free_GuestPanicInformation(info);
1767 void qemu_system_reset_request(ShutdownCause reason)
1770 shutdown_requested = reason;
1772 reset_requested = reason;
1775 qemu_notify_event();
1778 static void qemu_system_suspend(void)
1781 notifier_list_notify(&suspend_notifiers, NULL);
1782 runstate_set(RUN_STATE_SUSPENDED);
1783 qapi_event_send_suspend(&error_abort);
1786 void qemu_system_suspend_request(void)
1788 if (runstate_check(RUN_STATE_SUSPENDED)) {
1791 suspend_requested = 1;
1793 qemu_notify_event();
1796 void qemu_register_suspend_notifier(Notifier *notifier)
1798 notifier_list_add(&suspend_notifiers, notifier);
1801 void qemu_system_wakeup_request(WakeupReason reason)
1803 trace_system_wakeup_request(reason);
1805 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1808 if (!(wakeup_reason_mask & (1 << reason))) {
1811 runstate_set(RUN_STATE_RUNNING);
1812 wakeup_reason = reason;
1813 qemu_notify_event();
1816 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1819 wakeup_reason_mask |= (1 << reason);
1821 wakeup_reason_mask &= ~(1 << reason);
1825 void qemu_register_wakeup_notifier(Notifier *notifier)
1827 notifier_list_add(&wakeup_notifiers, notifier);
1830 void qemu_system_killed(int signal, pid_t pid)
1832 shutdown_signal = signal;
1836 /* Cannot call qemu_system_shutdown_request directly because
1837 * we are in a signal handler.
1839 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1840 qemu_notify_event();
1843 void qemu_system_shutdown_request(ShutdownCause reason)
1845 trace_qemu_system_shutdown_request(reason);
1846 replay_shutdown_request(reason);
1847 shutdown_requested = reason;
1848 qemu_notify_event();
1851 static void qemu_system_powerdown(void)
1853 qapi_event_send_powerdown(&error_abort);
1854 notifier_list_notify(&powerdown_notifiers, NULL);
1857 void qemu_system_powerdown_request(void)
1859 trace_qemu_system_powerdown_request();
1860 powerdown_requested = 1;
1861 qemu_notify_event();
1864 void qemu_register_powerdown_notifier(Notifier *notifier)
1866 notifier_list_add(&powerdown_notifiers, notifier);
1869 void qemu_system_debug_request(void)
1871 debug_requested = 1;
1872 qemu_notify_event();
1875 static bool main_loop_should_exit(void)
1878 ShutdownCause request;
1880 if (qemu_debug_requested()) {
1881 vm_stop(RUN_STATE_DEBUG);
1883 if (qemu_suspend_requested()) {
1884 qemu_system_suspend();
1886 request = qemu_shutdown_requested();
1889 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1892 vm_stop(RUN_STATE_SHUTDOWN);
1897 request = qemu_reset_requested();
1900 qemu_system_reset(request);
1902 if (!runstate_check(RUN_STATE_RUNNING) &&
1903 !runstate_check(RUN_STATE_INMIGRATE)) {
1904 runstate_set(RUN_STATE_PRELAUNCH);
1907 if (qemu_wakeup_requested()) {
1909 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1910 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1911 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1913 qapi_event_send_wakeup(&error_abort);
1915 if (qemu_powerdown_requested()) {
1916 qemu_system_powerdown();
1918 if (qemu_vmstop_requested(&r)) {
1924 static void main_loop(void)
1926 #ifdef CONFIG_PROFILER
1930 #ifdef CONFIG_PROFILER
1931 ti = profile_getclock();
1933 main_loop_wait(false);
1934 #ifdef CONFIG_PROFILER
1935 dev_time += profile_getclock() - ti;
1937 } while (!main_loop_should_exit());
1940 static void version(void)
1942 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1943 QEMU_COPYRIGHT "\n");
1946 static void help(int exitcode)
1949 printf("usage: %s [options] [disk_image]\n\n"
1950 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1951 error_get_progname());
1953 #define QEMU_OPTIONS_GENERATE_HELP
1954 #include "qemu-options-wrapper.h"
1956 printf("\nDuring emulation, the following keys are useful:\n"
1957 "ctrl-alt-f toggle full screen\n"
1958 "ctrl-alt-n switch to virtual console 'n'\n"
1959 "ctrl-alt toggle mouse and keyboard grab\n"
1961 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1963 QEMU_HELP_BOTTOM "\n");
1968 #define HAS_ARG 0x0001
1970 typedef struct QEMUOption {
1977 static const QEMUOption qemu_options[] = {
1978 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1979 #define QEMU_OPTIONS_GENERATE_OPTIONS
1980 #include "qemu-options-wrapper.h"
1984 typedef struct VGAInterfaceInfo {
1985 const char *opt_name; /* option name */
1986 const char *name; /* human-readable name */
1987 /* Class names indicating that support is available.
1988 * If no class is specified, the interface is always available */
1989 const char *class_names[2];
1992 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1998 .name = "standard VGA",
1999 .class_names = { "VGA", "isa-vga" },
2002 .opt_name = "cirrus",
2003 .name = "Cirrus VGA",
2004 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2007 .opt_name = "vmware",
2008 .name = "VMWare SVGA",
2009 .class_names = { "vmware-svga" },
2012 .opt_name = "virtio",
2013 .name = "Virtio VGA",
2014 .class_names = { "virtio-vga" },
2019 .class_names = { "qxl-vga" },
2023 .name = "TCX framebuffer",
2024 .class_names = { "SUNW,tcx" },
2028 .name = "CG3 framebuffer",
2029 .class_names = { "cgthree" },
2032 .opt_name = "xenfb",
2036 static bool vga_interface_available(VGAInterfaceType t)
2038 VGAInterfaceInfo *ti = &vga_interfaces[t];
2040 assert(t < VGA_TYPE_MAX);
2041 return !ti->class_names[0] ||
2042 object_class_by_name(ti->class_names[0]) ||
2043 object_class_by_name(ti->class_names[1]);
2046 static void select_vgahw(const char *p)
2051 assert(vga_interface_type == VGA_NONE);
2052 for (t = 0; t < VGA_TYPE_MAX; t++) {
2053 VGAInterfaceInfo *ti = &vga_interfaces[t];
2054 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2055 if (!vga_interface_available(t)) {
2056 error_report("%s not available", ti->name);
2059 vga_interface_type = t;
2063 if (t == VGA_TYPE_MAX) {
2065 error_report("unknown vga type: %s", p);
2069 const char *nextopt;
2071 if (strstart(opts, ",retrace=", &nextopt)) {
2073 if (strstart(opts, "dumb", &nextopt))
2074 vga_retrace_method = VGA_RETRACE_DUMB;
2075 else if (strstart(opts, "precise", &nextopt))
2076 vga_retrace_method = VGA_RETRACE_PRECISE;
2077 else goto invalid_vga;
2078 } else goto invalid_vga;
2083 typedef enum LegacyDisplayType {
2091 } LegacyDisplayType;
2093 static LegacyDisplayType select_display(const char *p)
2096 LegacyDisplayType display = DT_DEFAULT;
2098 if (strstart(p, "sdl", &opts)) {
2101 dpy.type = DISPLAY_TYPE_SDL;
2103 const char *nextopt;
2105 if (strstart(opts, ",frame=", &nextopt)) {
2106 g_printerr("The frame= sdl option is deprecated, and will be\n"
2107 "removed in a future release.\n");
2109 if (strstart(opts, "on", &nextopt)) {
2111 } else if (strstart(opts, "off", &nextopt)) {
2114 goto invalid_sdl_args;
2116 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2118 if (strstart(opts, "on", &nextopt)) {
2120 } else if (strstart(opts, "off", &nextopt)) {
2123 goto invalid_sdl_args;
2125 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2127 if (strstart(opts, "on", &nextopt)) {
2129 } else if (strstart(opts, "off", &nextopt)) {
2132 goto invalid_sdl_args;
2134 } else if (strstart(opts, ",window_close=", &nextopt)) {
2136 dpy.has_window_close = true;
2137 if (strstart(opts, "on", &nextopt)) {
2138 dpy.window_close = true;
2139 } else if (strstart(opts, "off", &nextopt)) {
2140 dpy.window_close = false;
2142 goto invalid_sdl_args;
2144 } else if (strstart(opts, ",gl=", &nextopt)) {
2147 if (strstart(opts, "on", &nextopt)) {
2149 } else if (strstart(opts, "off", &nextopt)) {
2152 goto invalid_sdl_args;
2156 error_report("invalid SDL option string");
2162 error_report("SDL support is disabled");
2165 } else if (strstart(p, "vnc", &opts)) {
2167 vnc_parse(opts + 1, &error_fatal);
2169 error_report("VNC requires a display argument vnc=<display>");
2172 } else if (strstart(p, "egl-headless", &opts)) {
2173 #ifdef CONFIG_OPENGL_DMABUF
2176 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2178 error_report("egl support is disabled");
2181 } else if (strstart(p, "curses", &opts)) {
2182 #ifdef CONFIG_CURSES
2183 display = DT_CURSES;
2184 dpy.type = DISPLAY_TYPE_CURSES;
2186 error_report("curses support is disabled");
2189 } else if (strstart(p, "gtk", &opts)) {
2192 dpy.type = DISPLAY_TYPE_GTK;
2194 const char *nextopt;
2196 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2198 dpy.u.gtk.has_grab_on_hover = true;
2199 if (strstart(opts, "on", &nextopt)) {
2200 dpy.u.gtk.grab_on_hover = true;
2201 } else if (strstart(opts, "off", &nextopt)) {
2202 dpy.u.gtk.grab_on_hover = false;
2204 goto invalid_gtk_args;
2206 } else if (strstart(opts, ",gl=", &nextopt)) {
2209 if (strstart(opts, "on", &nextopt)) {
2211 } else if (strstart(opts, "off", &nextopt)) {
2214 goto invalid_gtk_args;
2218 error_report("invalid GTK option string");
2224 error_report("GTK support is disabled");
2227 } else if (strstart(p, "none", &opts)) {
2229 dpy.type = DISPLAY_TYPE_NONE;
2231 error_report("unknown display type");
2238 static int balloon_parse(const char *arg)
2242 if (strcmp(arg, "none") == 0) {
2246 if (!strncmp(arg, "virtio", 6)) {
2247 if (arg[6] == ',') {
2248 /* have params -> parse them */
2249 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2254 /* create empty opts */
2255 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2258 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2265 char *qemu_find_file(int type, const char *name)
2271 /* Try the name as a straight path first */
2272 if (access(name, R_OK) == 0) {
2273 trace_load_file(name, name);
2274 return g_strdup(name);
2278 case QEMU_FILE_TYPE_BIOS:
2281 case QEMU_FILE_TYPE_KEYMAP:
2282 subdir = "keymaps/";
2288 for (i = 0; i < data_dir_idx; i++) {
2289 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2290 if (access(buf, R_OK) == 0) {
2291 trace_load_file(name, buf);
2299 static void qemu_add_data_dir(const char *path)
2306 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2309 for (i = 0; i < data_dir_idx; i++) {
2310 if (strcmp(data_dir[i], path) == 0) {
2311 return; /* duplicate */
2314 data_dir[data_dir_idx++] = g_strdup(path);
2317 static inline bool nonempty_str(const char *str)
2322 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2326 const char *name, *file, *str;
2327 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2329 if (fw_cfg == NULL) {
2330 error_report("fw_cfg device not available");
2333 name = qemu_opt_get(opts, "name");
2334 file = qemu_opt_get(opts, "file");
2335 str = qemu_opt_get(opts, "string");
2337 /* we need name and either a file or the content string */
2338 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2339 error_report("invalid argument(s)");
2342 if (nonempty_str(file) && nonempty_str(str)) {
2343 error_report("file and string are mutually exclusive");
2346 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2347 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2350 if (strncmp(name, "opt/", 4) != 0) {
2351 warn_report("externally provided fw_cfg item names "
2352 "should be prefixed with \"opt/\"");
2354 if (nonempty_str(str)) {
2355 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2356 buf = g_memdup(str, size);
2358 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2359 error_report("can't load %s", file);
2363 /* For legacy, keep user files in a specific global order. */
2364 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2365 fw_cfg_add_file(fw_cfg, name, buf, size);
2366 fw_cfg_reset_order_override(fw_cfg);
2370 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2372 return qdev_device_help(opts);
2375 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2380 dev = qdev_device_add(opts, &err);
2382 error_report_err(err);
2385 object_unref(OBJECT(dev));
2389 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2391 Error *local_err = NULL;
2393 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2395 error_report_err(local_err);
2403 #ifdef CONFIG_VIRTFS
2404 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2406 return qemu_fsdev_add(opts);
2410 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2413 const char *chardev;
2417 mode = qemu_opt_get(opts, "mode");
2421 if (strcmp(mode, "readline") == 0) {
2422 flags = MONITOR_USE_READLINE;
2423 } else if (strcmp(mode, "control") == 0) {
2424 flags = MONITOR_USE_CONTROL;
2426 error_report("unknown monitor mode \"%s\"", mode);
2430 if (qemu_opt_get_bool(opts, "pretty", 0))
2431 flags |= MONITOR_USE_PRETTY;
2433 chardev = qemu_opt_get(opts, "chardev");
2434 chr = qemu_chr_find(chardev);
2436 error_report("chardev \"%s\" not found", chardev);
2440 monitor_init(chr, flags);
2444 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2446 static int monitor_device_index = 0;
2451 if (strstart(optarg, "chardev:", &p)) {
2452 snprintf(label, sizeof(label), "%s", p);
2454 snprintf(label, sizeof(label), "compat_monitor%d",
2455 monitor_device_index);
2456 opts = qemu_chr_parse_compat(label, optarg);
2458 error_report("parse error: %s", optarg);
2463 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2464 qemu_opt_set(opts, "mode", mode, &error_abort);
2465 qemu_opt_set(opts, "chardev", label, &error_abort);
2466 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2467 monitor_device_index++;
2470 struct device_config {
2472 DEV_USB, /* -usbdevice */
2474 DEV_SERIAL, /* -serial */
2475 DEV_PARALLEL, /* -parallel */
2476 DEV_VIRTCON, /* -virtioconsole */
2477 DEV_DEBUGCON, /* -debugcon */
2478 DEV_GDB, /* -gdb, -s */
2479 DEV_SCLP, /* s390 sclp */
2481 const char *cmdline;
2483 QTAILQ_ENTRY(device_config) next;
2486 static QTAILQ_HEAD(, device_config) device_configs =
2487 QTAILQ_HEAD_INITIALIZER(device_configs);
2489 static void add_device_config(int type, const char *cmdline)
2491 struct device_config *conf;
2493 conf = g_malloc0(sizeof(*conf));
2495 conf->cmdline = cmdline;
2496 loc_save(&conf->loc);
2497 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2500 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2502 struct device_config *conf;
2505 QTAILQ_FOREACH(conf, &device_configs, next) {
2506 if (conf->type != type)
2508 loc_push_restore(&conf->loc);
2509 rc = func(conf->cmdline);
2510 loc_pop(&conf->loc);
2518 static int serial_parse(const char *devname)
2520 static int index = 0;
2523 if (strcmp(devname, "none") == 0)
2525 if (index == MAX_SERIAL_PORTS) {
2526 error_report("too many serial ports");
2529 snprintf(label, sizeof(label), "serial%d", index);
2530 serial_hds[index] = qemu_chr_new(label, devname);
2531 if (!serial_hds[index]) {
2532 error_report("could not connect serial device"
2533 " to character backend '%s'", devname);
2540 static int parallel_parse(const char *devname)
2542 static int index = 0;
2545 if (strcmp(devname, "none") == 0)
2547 if (index == MAX_PARALLEL_PORTS) {
2548 error_report("too many parallel ports");
2551 snprintf(label, sizeof(label), "parallel%d", index);
2552 parallel_hds[index] = qemu_chr_new(label, devname);
2553 if (!parallel_hds[index]) {
2554 error_report("could not connect parallel device"
2555 " to character backend '%s'", devname);
2562 static int virtcon_parse(const char *devname)
2564 QemuOptsList *device = qemu_find_opts("device");
2565 static int index = 0;
2567 QemuOpts *bus_opts, *dev_opts;
2569 if (strcmp(devname, "none") == 0)
2571 if (index == MAX_VIRTIO_CONSOLES) {
2572 error_report("too many virtio consoles");
2576 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2577 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2579 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2580 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2582 snprintf(label, sizeof(label), "virtcon%d", index);
2583 virtcon_hds[index] = qemu_chr_new(label, devname);
2584 if (!virtcon_hds[index]) {
2585 error_report("could not connect virtio console"
2586 " to character backend '%s'", devname);
2589 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2595 static int sclp_parse(const char *devname)
2597 QemuOptsList *device = qemu_find_opts("device");
2598 static int index = 0;
2602 if (strcmp(devname, "none") == 0) {
2605 if (index == MAX_SCLP_CONSOLES) {
2606 error_report("too many sclp consoles");
2610 assert(arch_type == QEMU_ARCH_S390X);
2612 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2613 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2615 snprintf(label, sizeof(label), "sclpcon%d", index);
2616 sclp_hds[index] = qemu_chr_new(label, devname);
2617 if (!sclp_hds[index]) {
2618 error_report("could not connect sclp console"
2619 " to character backend '%s'", devname);
2622 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2628 static int debugcon_parse(const char *devname)
2632 if (!qemu_chr_new("debugcon", devname)) {
2635 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2637 error_report("already have a debugcon device");
2640 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2641 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2645 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2647 const MachineClass *mc1 = a, *mc2 = b;
2650 if (mc1->family == NULL) {
2651 if (mc2->family == NULL) {
2652 /* Compare standalone machine types against each other; they sort
2653 * in increasing order.
2655 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2656 object_class_get_name(OBJECT_CLASS(mc2)));
2659 /* Standalone machine types sort after families. */
2663 if (mc2->family == NULL) {
2664 /* Families sort before standalone machine types. */
2668 /* Families sort between each other alphabetically increasingly. */
2669 res = strcmp(mc1->family, mc2->family);
2674 /* Within the same family, machine types sort in decreasing order. */
2675 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2676 object_class_get_name(OBJECT_CLASS(mc1)));
2679 static MachineClass *machine_parse(const char *name)
2681 MachineClass *mc = NULL;
2682 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2685 mc = find_machine(name);
2688 g_slist_free(machines);
2691 if (name && !is_help_option(name)) {
2692 error_report("unsupported machine type");
2693 error_printf("Use -machine help to list supported machines\n");
2695 printf("Supported machines are:\n");
2696 machines = g_slist_sort(machines, machine_class_cmp);
2697 for (el = machines; el; el = el->next) {
2698 MachineClass *mc = el->data;
2700 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2702 printf("%-20s %s%s\n", mc->name, mc->desc,
2703 mc->is_default ? " (default)" : "");
2707 g_slist_free(machines);
2708 exit(!name || !is_help_option(name));
2711 void qemu_add_exit_notifier(Notifier *notify)
2713 notifier_list_add(&exit_notifiers, notify);
2716 void qemu_remove_exit_notifier(Notifier *notify)
2718 notifier_remove(notify);
2721 static void qemu_run_exit_notifiers(void)
2723 notifier_list_notify(&exit_notifiers, NULL);
2726 static bool machine_init_done;
2728 void qemu_add_machine_init_done_notifier(Notifier *notify)
2730 notifier_list_add(&machine_init_done_notifiers, notify);
2731 if (machine_init_done) {
2732 notify->notify(notify, NULL);
2736 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2738 notifier_remove(notify);
2741 static void qemu_run_machine_init_done_notifiers(void)
2743 notifier_list_notify(&machine_init_done_notifiers, NULL);
2744 machine_init_done = true;
2747 static const QEMUOption *lookup_opt(int argc, char **argv,
2748 const char **poptarg, int *poptind)
2750 const QEMUOption *popt;
2751 int optind = *poptind;
2752 char *r = argv[optind];
2755 loc_set_cmdline(argv, optind, 1);
2757 /* Treat --foo the same as -foo. */
2760 popt = qemu_options;
2763 error_report("invalid option");
2766 if (!strcmp(popt->name, r + 1))
2770 if (popt->flags & HAS_ARG) {
2771 if (optind >= argc) {
2772 error_report("requires an argument");
2775 optarg = argv[optind++];
2776 loc_set_cmdline(argv, optind - 2, 2);
2787 static MachineClass *select_machine(void)
2789 MachineClass *machine_class = find_default_machine();
2794 loc_push_none(&loc);
2796 opts = qemu_get_machine_opts();
2797 qemu_opts_loc_restore(opts);
2799 optarg = qemu_opt_get(opts, "type");
2801 machine_class = machine_parse(optarg);
2804 if (!machine_class) {
2805 error_report("No machine specified, and there is no default");
2806 error_printf("Use -machine help to list supported machines\n");
2811 return machine_class;
2814 static int machine_set_property(void *opaque,
2815 const char *name, const char *value,
2818 Object *obj = OBJECT(opaque);
2819 Error *local_err = NULL;
2822 if (strcmp(name, "type") == 0) {
2826 qom_name = g_strdup(name);
2827 for (p = qom_name; *p; p++) {
2833 object_property_parse(obj, value, qom_name, &local_err);
2837 error_report_err(local_err);
2846 * Initial object creation happens before all other
2847 * QEMU data types are created. The majority of objects
2848 * can be created at this point. The rng-egd object
2849 * cannot be created here, as it depends on the chardev
2852 static bool object_create_initial(const char *type)
2854 if (g_str_equal(type, "rng-egd") ||
2855 g_str_has_prefix(type, "pr-manager-")) {
2860 * return false for concrete netfilters since
2861 * they depend on netdevs already existing
2863 if (g_str_equal(type, "filter-buffer") ||
2864 g_str_equal(type, "filter-dump") ||
2865 g_str_equal(type, "filter-mirror") ||
2866 g_str_equal(type, "filter-redirector") ||
2867 g_str_equal(type, "colo-compare") ||
2868 g_str_equal(type, "filter-rewriter") ||
2869 g_str_equal(type, "filter-replay")) {
2873 /* Memory allocation by backends needs to be done
2874 * after configure_accelerator() (due to the tcg_enabled()
2875 * checks at memory_region_init_*()).
2877 * Also, allocation of large amounts of memory may delay
2878 * chardev initialization for too long, and trigger timeouts
2879 * on software that waits for a monitor socket to be created
2882 if (g_str_has_prefix(type, "memory-backend-")) {
2891 * The remainder of object creation happens after the
2892 * creation of chardev, fsdev, net clients and device data types.
2894 static bool object_create_delayed(const char *type)
2896 return !object_create_initial(type);
2900 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2904 const char *mem_str;
2905 const char *maxmem_str, *slots_str;
2906 const ram_addr_t default_ram_size = mc->default_ram_size;
2907 QemuOpts *opts = qemu_find_opts_singleton("memory");
2910 loc_push_none(&loc);
2911 qemu_opts_loc_restore(opts);
2914 mem_str = qemu_opt_get(opts, "size");
2917 error_report("missing 'size' option value");
2921 sz = qemu_opt_get_size(opts, "size", ram_size);
2923 /* Fix up legacy suffix-less format */
2924 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2925 uint64_t overflow_check = sz;
2928 if ((sz >> 20) != overflow_check) {
2929 error_report("too large 'size' option value");
2935 /* backward compatibility behaviour for case "-m 0" */
2937 sz = default_ram_size;
2940 sz = QEMU_ALIGN_UP(sz, 8192);
2942 if (ram_size != sz) {
2943 error_report("ram size too large");
2947 /* store value for the future use */
2948 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2949 *maxram_size = ram_size;
2951 maxmem_str = qemu_opt_get(opts, "maxmem");
2952 slots_str = qemu_opt_get(opts, "slots");
2953 if (maxmem_str && slots_str) {
2956 sz = qemu_opt_get_size(opts, "maxmem", 0);
2957 slots = qemu_opt_get_number(opts, "slots", 0);
2958 if (sz < ram_size) {
2959 error_report("invalid value of -m option maxmem: "
2960 "maximum memory size (0x%" PRIx64 ") must be at least "
2961 "the initial memory size (0x" RAM_ADDR_FMT ")",
2964 } else if (sz > ram_size) {
2966 error_report("invalid value of -m option: maxmem was "
2967 "specified, but no hotplug slots were specified");
2971 error_report("invalid value of -m option maxmem: "
2972 "memory slots were specified but maximum memory size "
2973 "(0x%" PRIx64 ") is equal to the initial memory size "
2974 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2980 } else if ((!maxmem_str && slots_str) ||
2981 (maxmem_str && !slots_str)) {
2982 error_report("invalid -m option value: missing "
2983 "'%s' option", slots_str ? "maxmem" : "slots");
2990 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2994 g = g_malloc0(sizeof(*g));
2995 g->driver = qemu_opt_get(opts, "driver");
2996 g->property = qemu_opt_get(opts, "property");
2997 g->value = qemu_opt_get(opts, "value");
2998 g->user_provided = true;
2999 g->errp = &error_fatal;
3000 qdev_prop_register_global(g);
3004 static int qemu_read_default_config_file(void)
3008 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3009 if (ret < 0 && ret != -ENOENT) {
3016 static void user_register_global_props(void)
3018 qemu_opts_foreach(qemu_find_opts("global"),
3019 global_init_func, NULL, NULL);
3023 * Note: we should see that these properties are actually having a
3024 * priority: accel < machine < user. This means e.g. when user
3025 * specifies something in "-global", it'll always be used with highest
3026 * priority than either machine/accelerator compat properties.
3028 static void register_global_properties(MachineState *ms)
3030 accel_register_compat_props(ms->accelerator);
3031 machine_register_compat_props(ms);
3032 user_register_global_props();
3035 int main(int argc, char **argv, char **envp)
3038 int snapshot, linux_boot;
3039 const char *initrd_filename;
3040 const char *kernel_filename, *kernel_cmdline;
3041 const char *boot_order = NULL;
3042 const char *boot_once = NULL;
3044 QemuOpts *opts, *machine_opts;
3045 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3046 QemuOptsList *olist;
3049 const char *loadvm = NULL;
3050 MachineClass *machine_class;
3051 const char *cpu_model;
3052 const char *vga_model = NULL;
3053 const char *qtest_chrdev = NULL;
3054 const char *qtest_log = NULL;
3055 const char *pid_file = NULL;
3056 const char *incoming = NULL;
3057 bool userconfig = true;
3058 bool nographic = false;
3059 LegacyDisplayType display_type = DT_DEFAULT;
3060 int display_remote = 0;
3061 const char *log_mask = NULL;
3062 const char *log_file = NULL;
3063 char *trace_file = NULL;
3064 ram_addr_t maxram_size;
3065 uint64_t ram_slots = 0;
3066 FILE *vmstate_dump_file = NULL;
3067 Error *main_loop_err = NULL;
3069 bool list_data_dirs = false;
3071 typedef struct BlockdevOptions_queue {
3072 BlockdevOptions *bdo;
3074 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3075 } BlockdevOptions_queue;
3076 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3077 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3079 module_call_init(MODULE_INIT_TRACE);
3081 qemu_init_cpu_list();
3082 qemu_init_cpu_loop();
3083 qemu_mutex_lock_iothread();
3085 atexit(qemu_run_exit_notifiers);
3086 error_set_progname(argv[0]);
3087 qemu_init_exec_dir(argv[0]);
3089 module_call_init(MODULE_INIT_QOM);
3090 monitor_init_qmp_commands();
3092 qemu_add_opts(&qemu_drive_opts);
3093 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3094 qemu_add_drive_opts(&qemu_common_drive_opts);
3095 qemu_add_drive_opts(&qemu_drive_opts);
3096 qemu_add_drive_opts(&bdrv_runtime_opts);
3097 qemu_add_opts(&qemu_chardev_opts);
3098 qemu_add_opts(&qemu_device_opts);
3099 qemu_add_opts(&qemu_netdev_opts);
3100 qemu_add_opts(&qemu_net_opts);
3101 qemu_add_opts(&qemu_rtc_opts);
3102 qemu_add_opts(&qemu_global_opts);
3103 qemu_add_opts(&qemu_mon_opts);
3104 qemu_add_opts(&qemu_trace_opts);
3105 qemu_add_opts(&qemu_option_rom_opts);
3106 qemu_add_opts(&qemu_machine_opts);
3107 qemu_add_opts(&qemu_accel_opts);
3108 qemu_add_opts(&qemu_mem_opts);
3109 qemu_add_opts(&qemu_smp_opts);
3110 qemu_add_opts(&qemu_boot_opts);
3111 qemu_add_opts(&qemu_sandbox_opts);
3112 qemu_add_opts(&qemu_add_fd_opts);
3113 qemu_add_opts(&qemu_object_opts);
3114 qemu_add_opts(&qemu_tpmdev_opts);
3115 qemu_add_opts(&qemu_realtime_opts);
3116 qemu_add_opts(&qemu_msg_opts);
3117 qemu_add_opts(&qemu_name_opts);
3118 qemu_add_opts(&qemu_numa_opts);
3119 qemu_add_opts(&qemu_icount_opts);
3120 qemu_add_opts(&qemu_semihosting_config_opts);
3121 qemu_add_opts(&qemu_fw_cfg_opts);
3122 module_call_init(MODULE_INIT_OPTS);
3126 if (qcrypto_init(&err) < 0) {
3127 error_reportf_err(err, "cannot initialize crypto: ");
3130 rtc_clock = QEMU_CLOCK_HOST;
3132 QLIST_INIT (&vm_change_state_head);
3133 os_setup_early_signal_handling();
3140 bdrv_init_with_whitelist();
3144 /* first pass of option parsing */
3146 while (optind < argc) {
3147 if (argv[optind][0] != '-') {
3151 const QEMUOption *popt;
3153 popt = lookup_opt(argc, argv, &optarg, &optind);
3154 switch (popt->index) {
3155 case QEMU_OPTION_nodefconfig:
3156 case QEMU_OPTION_nouserconfig:
3164 if (qemu_read_default_config_file() < 0) {
3169 /* second pass of option parsing */
3174 if (argv[optind][0] != '-') {
3175 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3177 const QEMUOption *popt;
3179 popt = lookup_opt(argc, argv, &optarg, &optind);
3180 if (!(popt->arch_mask & arch_type)) {
3181 error_report("Option not supported for this target");
3184 switch(popt->index) {
3185 case QEMU_OPTION_no_kvm_irqchip: {
3186 olist = qemu_find_opts("machine");
3187 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3190 case QEMU_OPTION_cpu:
3191 /* hw initialization will check this */
3194 case QEMU_OPTION_hda:
3195 case QEMU_OPTION_hdb:
3196 case QEMU_OPTION_hdc:
3197 case QEMU_OPTION_hdd:
3198 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3201 case QEMU_OPTION_blockdev:
3204 BlockdevOptions_queue *bdo;
3206 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3208 error_report_err(err);
3212 bdo = g_new(BlockdevOptions_queue, 1);
3213 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3216 loc_save(&bdo->loc);
3217 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3220 case QEMU_OPTION_drive:
3221 if (drive_def(optarg) == NULL) {
3225 case QEMU_OPTION_set:
3226 if (qemu_set_option(optarg) != 0)
3229 case QEMU_OPTION_global:
3230 if (qemu_global_option(optarg) != 0)
3233 case QEMU_OPTION_mtdblock:
3234 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3236 case QEMU_OPTION_sd:
3237 drive_add(IF_SD, -1, optarg, SD_OPTS);
3239 case QEMU_OPTION_pflash:
3240 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3242 case QEMU_OPTION_snapshot:
3245 case QEMU_OPTION_numa:
3246 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3252 case QEMU_OPTION_display:
3253 display_type = select_display(optarg);
3255 case QEMU_OPTION_nographic:
3256 olist = qemu_find_opts("machine");
3257 qemu_opts_parse_noisily(olist, "graphics=off", false);
3259 display_type = DT_NONE;
3260 dpy.type = DISPLAY_TYPE_NONE;
3262 case QEMU_OPTION_curses:
3263 #ifdef CONFIG_CURSES
3264 display_type = DT_CURSES;
3265 dpy.type = DISPLAY_TYPE_CURSES;
3267 error_report("curses support is disabled");
3271 case QEMU_OPTION_portrait:
3272 graphic_rotate = 90;
3274 case QEMU_OPTION_rotate:
3275 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3276 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3277 graphic_rotate != 180 && graphic_rotate != 270) {
3278 error_report("only 90, 180, 270 deg rotation is available");
3282 case QEMU_OPTION_kernel:
3283 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3286 case QEMU_OPTION_initrd:
3287 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3290 case QEMU_OPTION_append:
3291 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3294 case QEMU_OPTION_dtb:
3295 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3298 case QEMU_OPTION_cdrom:
3299 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3301 case QEMU_OPTION_boot:
3302 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3308 case QEMU_OPTION_fda:
3309 case QEMU_OPTION_fdb:
3310 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3313 case QEMU_OPTION_no_fd_bootchk:
3316 case QEMU_OPTION_netdev:
3318 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3322 case QEMU_OPTION_net:
3324 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3328 #ifdef CONFIG_LIBISCSI
3329 case QEMU_OPTION_iscsi:
3330 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3338 case QEMU_OPTION_tftp:
3339 error_report("The -tftp option is deprecated. "
3340 "Please use '-netdev user,tftp=...' instead.");
3341 legacy_tftp_prefix = optarg;
3343 case QEMU_OPTION_bootp:
3344 error_report("The -bootp option is deprecated. "
3345 "Please use '-netdev user,bootfile=...' instead.");
3346 legacy_bootp_filename = optarg;
3348 case QEMU_OPTION_redir:
3349 error_report("The -redir option is deprecated. "
3350 "Please use '-netdev user,hostfwd=...' instead.");
3351 if (net_slirp_redir(optarg) < 0)
3355 case QEMU_OPTION_bt:
3356 add_device_config(DEV_BT, optarg);
3358 case QEMU_OPTION_audio_help:
3362 case QEMU_OPTION_soundhw:
3363 select_soundhw (optarg);
3368 case QEMU_OPTION_version:
3373 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3380 case QEMU_OPTION_tpmdev:
3381 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3386 case QEMU_OPTION_mempath:
3389 case QEMU_OPTION_mem_prealloc:
3398 case QEMU_OPTION_DFILTER:
3399 qemu_set_dfilter_ranges(optarg, &error_fatal);
3402 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3404 case QEMU_OPTION_gdb:
3405 add_device_config(DEV_GDB, optarg);
3408 if (is_help_option(optarg)) {
3409 list_data_dirs = true;
3411 qemu_add_data_dir(optarg);
3414 case QEMU_OPTION_bios:
3415 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3418 case QEMU_OPTION_singlestep:
3425 keyboard_layout = optarg;
3427 case QEMU_OPTION_localtime:
3430 case QEMU_OPTION_vga:
3439 w = strtol(p, (char **)&p, 10);
3442 error_report("invalid resolution or depth");
3448 h = strtol(p, (char **)&p, 10);
3453 depth = strtol(p, (char **)&p, 10);
3454 if (depth != 8 && depth != 15 && depth != 16 &&
3455 depth != 24 && depth != 32)
3457 } else if (*p == '\0') {
3458 depth = graphic_depth;
3465 graphic_depth = depth;
3468 case QEMU_OPTION_echr:
3471 term_escape_char = strtol(optarg, &r, 0);
3473 printf("Bad argument to echr\n");
3476 case QEMU_OPTION_monitor:
3477 default_monitor = 0;
3478 if (strncmp(optarg, "none", 4)) {
3479 monitor_parse(optarg, "readline", false);
3482 case QEMU_OPTION_qmp:
3483 monitor_parse(optarg, "control", false);
3484 default_monitor = 0;
3486 case QEMU_OPTION_qmp_pretty:
3487 monitor_parse(optarg, "control", true);
3488 default_monitor = 0;
3490 case QEMU_OPTION_mon:
3491 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3496 default_monitor = 0;
3498 case QEMU_OPTION_chardev:
3499 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3505 case QEMU_OPTION_fsdev:
3506 olist = qemu_find_opts("fsdev");
3508 error_report("fsdev support is disabled");
3511 opts = qemu_opts_parse_noisily(olist, optarg, true);
3516 case QEMU_OPTION_virtfs: {
3519 const char *writeout, *sock_fd, *socket, *path, *security_model;
3521 olist = qemu_find_opts("virtfs");
3523 error_report("virtfs support is disabled");
3526 opts = qemu_opts_parse_noisily(olist, optarg, true);
3531 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3532 qemu_opt_get(opts, "mount_tag") == NULL) {
3533 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3536 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3537 qemu_opts_id(opts) ?:
3538 qemu_opt_get(opts, "mount_tag"),
3541 error_report("duplicate or invalid fsdev id: %s",
3542 qemu_opt_get(opts, "mount_tag"));
3546 writeout = qemu_opt_get(opts, "writeout");
3548 #ifdef CONFIG_SYNC_FILE_RANGE
3549 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3551 error_report("writeout=immediate not supported "
3552 "on this platform");
3556 qemu_opt_set(fsdev, "fsdriver",
3557 qemu_opt_get(opts, "fsdriver"), &error_abort);
3558 path = qemu_opt_get(opts, "path");
3560 qemu_opt_set(fsdev, "path", path, &error_abort);
3562 security_model = qemu_opt_get(opts, "security_model");
3563 if (security_model) {
3564 qemu_opt_set(fsdev, "security_model", security_model,
3567 socket = qemu_opt_get(opts, "socket");
3569 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3571 sock_fd = qemu_opt_get(opts, "sock_fd");
3573 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3576 qemu_opt_set_bool(fsdev, "readonly",
3577 qemu_opt_get_bool(opts, "readonly", 0),
3579 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3581 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3582 qemu_opt_set(device, "fsdev",
3583 qemu_opts_id(fsdev), &error_abort);
3584 qemu_opt_set(device, "mount_tag",
3585 qemu_opt_get(opts, "mount_tag"), &error_abort);
3588 case QEMU_OPTION_virtfs_synth: {
3592 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3595 error_report("duplicate option: %s", "virtfs_synth");
3598 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3600 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3602 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3603 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3604 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3607 case QEMU_OPTION_serial:
3608 add_device_config(DEV_SERIAL, optarg);
3610 if (strncmp(optarg, "mon:", 4) == 0) {
3611 default_monitor = 0;
3614 case QEMU_OPTION_watchdog:
3616 error_report("only one watchdog option may be given");
3621 case QEMU_OPTION_watchdog_action:
3622 if (select_watchdog_action(optarg) == -1) {
3623 error_report("unknown -watchdog-action parameter");
3627 case QEMU_OPTION_virtiocon:
3628 add_device_config(DEV_VIRTCON, optarg);
3629 default_virtcon = 0;
3630 if (strncmp(optarg, "mon:", 4) == 0) {
3631 default_monitor = 0;
3634 case QEMU_OPTION_parallel:
3635 add_device_config(DEV_PARALLEL, optarg);
3636 default_parallel = 0;
3637 if (strncmp(optarg, "mon:", 4) == 0) {
3638 default_monitor = 0;
3641 case QEMU_OPTION_debugcon:
3642 add_device_config(DEV_DEBUGCON, optarg);
3644 case QEMU_OPTION_loadvm:
3647 case QEMU_OPTION_full_screen:
3648 dpy.has_full_screen = true;
3649 dpy.full_screen = true;
3651 case QEMU_OPTION_no_frame:
3652 g_printerr("The -no-frame switch is deprecated, and will be\n"
3653 "removed in a future release.\n");
3656 case QEMU_OPTION_alt_grab:
3659 case QEMU_OPTION_ctrl_grab:
3662 case QEMU_OPTION_no_quit:
3663 dpy.has_window_close = true;
3664 dpy.window_close = false;
3666 case QEMU_OPTION_sdl:
3668 display_type = DT_SDL;
3669 dpy.type = DISPLAY_TYPE_SDL;
3672 error_report("SDL support is disabled");
3675 case QEMU_OPTION_pidfile:
3678 case QEMU_OPTION_win2k_hack:
3679 win2k_install_hack = 1;
3681 case QEMU_OPTION_rtc_td_hack: {
3682 static GlobalProperty slew_lost_ticks = {
3683 .driver = "mc146818rtc",
3684 .property = "lost_tick_policy",
3688 qdev_prop_register_global(&slew_lost_ticks);
3691 case QEMU_OPTION_acpitable:
3692 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3697 acpi_table_add(opts, &error_fatal);
3699 case QEMU_OPTION_smbios:
3700 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3705 smbios_entry_add(opts, &error_fatal);
3707 case QEMU_OPTION_fwcfg:
3708 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3714 case QEMU_OPTION_enable_kvm:
3715 olist = qemu_find_opts("machine");
3716 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3718 case QEMU_OPTION_enable_hax:
3719 olist = qemu_find_opts("machine");
3720 qemu_opts_parse_noisily(olist, "accel=hax", false);
3723 case QEMU_OPTION_machine:
3724 olist = qemu_find_opts("machine");
3725 opts = qemu_opts_parse_noisily(olist, optarg, true);
3730 case QEMU_OPTION_no_kvm:
3731 olist = qemu_find_opts("machine");
3732 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3734 case QEMU_OPTION_no_kvm_pit_reinjection: {
3735 static GlobalProperty kvm_pit_lost_tick_policy = {
3736 .driver = "kvm-pit",
3737 .property = "lost_tick_policy",
3741 warn_report("deprecated, replaced by "
3742 "-global kvm-pit.lost_tick_policy=discard");
3743 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3746 case QEMU_OPTION_accel:
3747 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3749 optarg = qemu_opt_get(accel_opts, "accel");
3750 if (!optarg || is_help_option(optarg)) {
3751 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3754 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3755 false, &error_abort);
3756 qemu_opt_set(opts, "accel", optarg, &error_abort);
3758 case QEMU_OPTION_usb:
3759 olist = qemu_find_opts("machine");
3760 qemu_opts_parse_noisily(olist, "usb=on", false);
3762 case QEMU_OPTION_usbdevice:
3763 error_report("'-usbdevice' is deprecated, please use "
3764 "'-device usb-...' instead");
3765 olist = qemu_find_opts("machine");
3766 qemu_opts_parse_noisily(olist, "usb=on", false);
3767 add_device_config(DEV_USB, optarg);
3769 case QEMU_OPTION_device:
3770 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3775 case QEMU_OPTION_smp:
3776 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3781 case QEMU_OPTION_vnc:
3782 vnc_parse(optarg, &error_fatal);
3784 case QEMU_OPTION_no_acpi:
3787 case QEMU_OPTION_no_hpet:
3790 case QEMU_OPTION_balloon:
3791 if (balloon_parse(optarg) < 0) {
3792 error_report("unknown -balloon argument %s", optarg);
3796 case QEMU_OPTION_no_reboot:
3799 case QEMU_OPTION_no_shutdown:
3802 case QEMU_OPTION_show_cursor:
3805 case QEMU_OPTION_uuid:
3806 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3807 error_report("failed to parse UUID string: wrong format");
3810 qemu_uuid_set = true;
3812 case QEMU_OPTION_option_rom:
3813 if (nb_option_roms >= MAX_OPTION_ROMS) {
3814 error_report("too many option ROMs");
3817 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3822 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3823 option_rom[nb_option_roms].bootindex =
3824 qemu_opt_get_number(opts, "bootindex", -1);
3825 if (!option_rom[nb_option_roms].name) {
3826 error_report("Option ROM file is not specified");
3831 case QEMU_OPTION_semihosting:
3832 semihosting.enabled = true;
3833 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3835 case QEMU_OPTION_semihosting_config:
3836 semihosting.enabled = true;
3837 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3840 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3842 const char *target = qemu_opt_get(opts, "target");
3843 if (target != NULL) {
3844 if (strcmp("native", target) == 0) {
3845 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3846 } else if (strcmp("gdb", target) == 0) {
3847 semihosting.target = SEMIHOSTING_TARGET_GDB;
3848 } else if (strcmp("auto", target) == 0) {
3849 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3851 error_report("unsupported semihosting-config %s",
3856 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3858 /* Set semihosting argument count and vector */
3859 qemu_opt_foreach(opts, add_semihosting_arg,
3860 &semihosting, NULL);
3862 error_report("unsupported semihosting-config %s", optarg);
3866 case QEMU_OPTION_tdf:
3867 warn_report("ignoring deprecated option");
3869 case QEMU_OPTION_name:
3870 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3876 case QEMU_OPTION_prom_env:
3877 if (nb_prom_envs >= MAX_PROM_ENVS) {
3878 error_report("too many prom variables");
3881 prom_envs[nb_prom_envs] = optarg;
3884 case QEMU_OPTION_old_param:
3887 case QEMU_OPTION_clock:
3888 /* Clock options no longer exist. Keep this option for
3889 * backward compatibility.
3892 case QEMU_OPTION_startdate:
3893 configure_rtc_date_offset(optarg, 1);
3895 case QEMU_OPTION_rtc:
3896 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3901 configure_rtc(opts);
3903 case QEMU_OPTION_tb_size:
3905 error_report("TCG is disabled");
3908 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3909 error_report("Invalid argument to -tb-size");
3913 case QEMU_OPTION_icount:
3914 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3920 case QEMU_OPTION_incoming:
3922 runstate_set(RUN_STATE_INMIGRATE);
3926 case QEMU_OPTION_only_migratable:
3928 * TODO: we can remove this option one day, and we
3931 * "-global migration.only-migratable=true"
3933 qemu_global_option("migration.only-migratable=true");
3935 case QEMU_OPTION_nodefaults:
3938 case QEMU_OPTION_xen_domid:
3939 if (!(xen_available())) {
3940 error_report("Option not supported for this target");
3943 xen_domid = atoi(optarg);
3945 case QEMU_OPTION_xen_create:
3946 if (!(xen_available())) {
3947 error_report("Option not supported for this target");
3950 xen_mode = XEN_CREATE;
3952 case QEMU_OPTION_xen_attach:
3953 if (!(xen_available())) {
3954 error_report("Option not supported for this target");
3957 xen_mode = XEN_ATTACH;
3959 case QEMU_OPTION_xen_domid_restrict:
3960 if (!(xen_available())) {
3961 error_report("Option not supported for this target");
3964 xen_domid_restrict = true;
3966 case QEMU_OPTION_trace:
3968 trace_file = trace_opt_parse(optarg);
3970 case QEMU_OPTION_readconfig:
3972 int ret = qemu_read_config_file(optarg);
3974 error_report("read config %s: %s", optarg,
3980 case QEMU_OPTION_spice:
3981 olist = qemu_find_opts("spice");
3983 error_report("spice support is disabled");
3986 opts = qemu_opts_parse_noisily(olist, optarg, false);
3992 case QEMU_OPTION_writeconfig:
3995 if (strcmp(optarg, "-") == 0) {
3998 fp = fopen(optarg, "w");
4000 error_report("open %s: %s", optarg,
4005 qemu_config_write(fp);
4011 case QEMU_OPTION_qtest:
4012 qtest_chrdev = optarg;
4014 case QEMU_OPTION_qtest_log:
4017 case QEMU_OPTION_sandbox:
4018 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4024 case QEMU_OPTION_add_fd:
4026 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4032 error_report("File descriptor passing is disabled on this "
4037 case QEMU_OPTION_object:
4038 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4044 case QEMU_OPTION_realtime:
4045 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4050 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4052 case QEMU_OPTION_msg:
4053 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4058 configure_msg(opts);
4060 case QEMU_OPTION_dump_vmstate:
4061 if (vmstate_dump_file) {
4062 error_report("only one '-dump-vmstate' "
4063 "option may be given");
4066 vmstate_dump_file = fopen(optarg, "w");
4067 if (vmstate_dump_file == NULL) {
4068 error_report("open %s: %s", optarg, strerror(errno));
4073 os_parse_cmd_args(popt->index, optarg);
4078 * Clear error location left behind by the loop.
4079 * Best done right after the loop. Do not insert code here!
4083 replay_configure(icount_opts);
4085 machine_class = select_machine();
4087 set_memory_options(&ram_slots, &maxram_size, machine_class);
4090 rcu_disable_atfork();
4092 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4093 error_report("could not acquire pid file: %s", strerror(errno));
4097 if (qemu_init_main_loop(&main_loop_err)) {
4098 error_report_err(main_loop_err);
4102 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4103 parse_sandbox, NULL, NULL)) {
4107 if (qemu_opts_foreach(qemu_find_opts("name"),
4108 parse_name, NULL, NULL)) {
4113 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4114 parse_add_fd, NULL, NULL)) {
4118 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4119 cleanup_add_fd, NULL, NULL)) {
4124 current_machine = MACHINE(object_new(object_class_get_name(
4125 OBJECT_CLASS(machine_class))));
4126 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4129 object_property_add_child(object_get_root(), "machine",
4130 OBJECT(current_machine), &error_abort);
4132 if (machine_class->minimum_page_bits) {
4133 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4134 /* This would be a board error: specifying a minimum smaller than
4135 * a target's compile-time fixed setting.
4137 g_assert_not_reached();
4141 cpu_exec_init_all();
4143 if (machine_class->hw_version) {
4144 qemu_set_hw_version(machine_class->hw_version);
4147 if (cpu_model && is_help_option(cpu_model)) {
4148 list_cpus(stdout, &fprintf, cpu_model);
4152 if (!trace_init_backends()) {
4155 trace_init_file(trace_file);
4157 /* Open the logfile at this point and set the log mask if necessary.
4160 qemu_set_log_filename(log_file, &error_fatal);
4165 mask = qemu_str_to_log_mask(log_mask);
4167 qemu_print_log_usage(stdout);
4175 /* add configured firmware directories */
4176 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4177 for (i = 0; dirs[i] != NULL; i++) {
4178 qemu_add_data_dir(dirs[i]);
4182 /* try to find datadir relative to the executable path */
4183 dir = os_find_datadir();
4184 qemu_add_data_dir(dir);
4187 /* add the datadir specified when building */
4188 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4190 /* -L help lists the data directories and exits. */
4191 if (list_data_dirs) {
4192 for (i = 0; i < data_dir_idx; i++) {
4193 printf("%s\n", data_dir[i]);
4198 /* machine_class: default to UP */
4199 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4200 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4201 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4203 /* default to machine_class->default_cpus */
4204 smp_cpus = machine_class->default_cpus;
4205 max_cpus = machine_class->default_cpus;
4207 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4209 /* sanity-check smp_cpus and max_cpus against machine_class */
4210 if (smp_cpus < machine_class->min_cpus) {
4211 error_report("Invalid SMP CPUs %d. The min CPUs "
4212 "supported by machine '%s' is %d", smp_cpus,
4213 machine_class->name, machine_class->min_cpus);
4216 if (max_cpus > machine_class->max_cpus) {
4217 error_report("Invalid SMP CPUs %d. The max CPUs "
4218 "supported by machine '%s' is %d", max_cpus,
4219 machine_class->name, machine_class->max_cpus);
4224 * Get the default machine options from the machine if it is not already
4225 * specified either by the configuration file or by the command line.
4227 if (machine_class->default_machine_opts) {
4228 qemu_opts_set_defaults(qemu_find_opts("machine"),
4229 machine_class->default_machine_opts, 0);
4232 qemu_opts_foreach(qemu_find_opts("device"),
4233 default_driver_check, NULL, NULL);
4234 qemu_opts_foreach(qemu_find_opts("global"),
4235 default_driver_check, NULL, NULL);
4237 if (!vga_model && !default_vga) {
4238 vga_interface_type = VGA_DEVICE;
4240 if (!has_defaults || machine_class->no_serial) {
4243 if (!has_defaults || machine_class->no_parallel) {
4244 default_parallel = 0;
4246 if (!has_defaults || !machine_class->use_virtcon) {
4247 default_virtcon = 0;
4249 if (!has_defaults || !machine_class->use_sclp) {
4252 if (!has_defaults || machine_class->no_floppy) {
4255 if (!has_defaults || machine_class->no_cdrom) {
4258 if (!has_defaults || machine_class->no_sdcard) {
4261 if (!has_defaults) {
4262 default_monitor = 0;
4267 if (is_daemonized()) {
4268 /* According to documentation and historically, -nographic redirects
4269 * serial port, parallel port and monitor to stdio, which does not work
4270 * with -daemonize. We can redirect these to null instead, but since
4271 * -nographic is legacy, let's just error out.
4272 * We disallow -nographic only if all other ports are not redirected
4273 * explicitly, to not break existing legacy setups which uses
4274 * -nographic _and_ redirects all ports explicitly - this is valid
4275 * usage, -nographic is just a no-op in this case.
4278 && (default_parallel || default_serial
4279 || default_monitor || default_virtcon)) {
4280 error_report("-nographic cannot be used with -daemonize");
4283 #ifdef CONFIG_CURSES
4284 if (display_type == DT_CURSES) {
4285 error_report("curses display cannot be used with -daemonize");
4292 if (default_parallel)
4293 add_device_config(DEV_PARALLEL, "null");
4294 if (default_serial && default_monitor) {
4295 add_device_config(DEV_SERIAL, "mon:stdio");
4296 } else if (default_virtcon && default_monitor) {
4297 add_device_config(DEV_VIRTCON, "mon:stdio");
4298 } else if (default_sclp && default_monitor) {
4299 add_device_config(DEV_SCLP, "mon:stdio");
4302 add_device_config(DEV_SERIAL, "stdio");
4303 if (default_virtcon)
4304 add_device_config(DEV_VIRTCON, "stdio");
4306 add_device_config(DEV_SCLP, "stdio");
4308 if (default_monitor)
4309 monitor_parse("stdio", "readline", false);
4313 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4314 if (default_parallel)
4315 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4316 if (default_monitor)
4317 monitor_parse("vc:80Cx24C", "readline", false);
4318 if (default_virtcon)
4319 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4321 add_device_config(DEV_SCLP, "vc:80Cx24C");
4325 #if defined(CONFIG_VNC)
4326 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4330 if (display_type == DT_DEFAULT && !display_remote) {
4331 #if defined(CONFIG_GTK)
4332 display_type = DT_GTK;
4333 dpy.type = DISPLAY_TYPE_GTK;
4334 #elif defined(CONFIG_SDL)
4335 display_type = DT_SDL;
4336 dpy.type = DISPLAY_TYPE_SDL;
4337 #elif defined(CONFIG_COCOA)
4338 display_type = DT_COCOA;
4339 dpy.type = DISPLAY_TYPE_COCOA;
4340 #elif defined(CONFIG_VNC)
4341 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4343 display_type = DT_NONE;
4344 dpy.type = DISPLAY_TYPE_NONE;
4348 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4349 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4350 "for SDL, ignoring option");
4352 if (dpy.has_window_close &&
4353 (display_type != DT_GTK && display_type != DT_SDL)) {
4354 error_report("-no-quit is only valid for GTK and SDL, "
4358 if (display_type == DT_GTK) {
4359 early_gtk_display_init(&dpy);
4362 if (display_type == DT_SDL) {
4363 sdl_display_early_init(&dpy);
4366 qemu_console_early_init();
4368 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4369 #if defined(CONFIG_OPENGL)
4370 error_report("OpenGL is not supported by the display");
4372 error_report("OpenGL support is disabled");
4380 if (qemu_opts_foreach(qemu_find_opts("object"),
4381 user_creatable_add_opts_foreach,
4382 object_create_initial, NULL)) {
4386 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4387 chardev_init_func, NULL, NULL)) {
4391 #ifdef CONFIG_VIRTFS
4392 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4393 fsdev_init_func, NULL, NULL)) {
4398 if (qemu_opts_foreach(qemu_find_opts("device"),
4399 device_help_func, NULL, NULL)) {
4403 machine_opts = qemu_get_machine_opts();
4404 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4406 object_unref(OBJECT(current_machine));
4410 configure_accelerator(current_machine);
4413 * Register all the global properties, including accel properties,
4414 * machine properties, and user-specified ones.
4416 register_global_properties(current_machine);
4419 * Migration object can only be created after global properties
4420 * are applied correctly.
4422 migration_object_init();
4425 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4428 machine_opts = qemu_get_machine_opts();
4429 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4430 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4431 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4432 bios_name = qemu_opt_get(machine_opts, "firmware");
4434 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4436 boot_order = qemu_opt_get(opts, "order");
4438 validate_bootdevices(boot_order, &error_fatal);
4441 boot_once = qemu_opt_get(opts, "once");
4443 validate_bootdevices(boot_once, &error_fatal);
4446 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4447 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4451 boot_order = machine_class->default_boot_order;
4454 if (!kernel_cmdline) {
4455 kernel_cmdline = "";
4456 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4459 linux_boot = (kernel_filename != NULL);
4461 if (!linux_boot && *kernel_cmdline != '\0') {
4462 error_report("-append only allowed with -kernel option");
4466 if (!linux_boot && initrd_filename != NULL) {
4467 error_report("-initrd only allowed with -kernel option");
4471 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4472 /* fall back to the -kernel/-append */
4473 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4476 os_set_line_buffering();
4478 /* spice needs the timers to be initialized by this point */
4483 if (!tcg_enabled()) {
4484 error_report("-icount is not allowed with hardware virtualization");
4487 configure_icount(icount_opts, &error_abort);
4488 qemu_opts_del(icount_opts);
4491 if (tcg_enabled()) {
4492 qemu_tcg_configure(accel_opts, &error_fatal);
4496 QemuOptsList *net = qemu_find_opts("net");
4497 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4499 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4505 if (net_init_clients() < 0) {
4509 if (qemu_opts_foreach(qemu_find_opts("object"),
4510 user_creatable_add_opts_foreach,
4511 object_create_delayed, NULL)) {
4515 if (tpm_init() < 0) {
4519 /* init the bluetooth world */
4520 if (foreach_device_config(DEV_BT, bt_parse))
4523 if (!xen_enabled()) {
4524 /* On 32-bit hosts, QEMU is limited by virtual address space */
4525 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4526 error_report("at most 2047 MB RAM can be simulated");
4534 /* If the currently selected machine wishes to override the units-per-bus
4535 * property of its default HBA interface type, do so now. */
4536 if (machine_class->units_per_default_bus) {
4537 override_max_devs(machine_class->block_default_type,
4538 machine_class->units_per_default_bus);
4541 /* open the virtual block devices */
4542 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4543 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4545 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4546 loc_push_restore(&bdo->loc);
4547 qmp_blockdev_add(bdo->bdo, &error_fatal);
4549 qapi_free_BlockdevOptions(bdo->bdo);
4552 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4553 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4556 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4557 &machine_class->block_default_type, NULL)) {
4561 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4563 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4564 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4566 if (qemu_opts_foreach(qemu_find_opts("mon"),
4567 mon_init_func, NULL, NULL)) {
4571 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4573 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4575 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4577 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4580 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4583 /* If no default VGA is requested, the default is "none". */
4585 if (machine_class->default_display) {
4586 vga_model = machine_class->default_display;
4587 } else if (vga_interface_available(VGA_CIRRUS)) {
4588 vga_model = "cirrus";
4589 } else if (vga_interface_available(VGA_STD)) {
4594 select_vgahw(vga_model);
4598 i = select_watchdog(watchdog);
4600 exit (i == 1 ? 1 : 0);
4603 /* This checkpoint is required by replay to separate prior clock
4604 reading from the other reads, because timer polling functions query
4605 clock values from the log. */
4606 replay_checkpoint(CHECKPOINT_INIT);
4607 qdev_machine_init();
4609 current_machine->ram_size = ram_size;
4610 current_machine->maxram_size = maxram_size;
4611 current_machine->ram_slots = ram_slots;
4612 current_machine->boot_order = boot_order;
4613 current_machine->cpu_model = cpu_model;
4615 /* parse features once if machine provides default cpu_type */
4616 if (machine_class->default_cpu_type) {
4617 current_machine->cpu_type = machine_class->default_cpu_type;
4619 current_machine->cpu_type =
4620 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4623 parse_numa_opts(current_machine);
4625 machine_run_board_init(current_machine);
4631 if (hax_enabled()) {
4635 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4636 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4640 /* init USB devices */
4641 if (machine_usb(current_machine)) {
4642 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4646 /* Check if IGD GFX passthrough. */
4649 /* init generic devices */
4650 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4651 if (qemu_opts_foreach(qemu_find_opts("device"),
4652 device_init_func, NULL, NULL)) {
4656 cpu_synchronize_all_post_init();
4658 rom_reset_order_override();
4661 * Create frontends for -drive if=scsi leftovers.
4662 * Normally, frontends for -drive get created by machine
4663 * initialization for onboard SCSI HBAs. However, we create a few
4664 * more ever since SCSI qdevification, but this is pretty much an
4665 * implementation accident, and deprecated.
4667 scsi_legacy_handle_cmdline();
4669 /* Did we create any drives that we failed to create a device for? */
4670 drive_check_orphaned();
4672 /* Don't warn about the default network setup that you get if
4673 * no command line -net or -netdev options are specified. There
4674 * are two cases that we would otherwise complain about:
4675 * (1) board doesn't support a NIC but the implicit "-net nic"
4677 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4678 * sets up a nic that isn't connected to anything.
4681 net_check_clients();
4686 qemu_boot_set(boot_once, &error_fatal);
4687 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4690 ds = init_displaystate();
4692 /* init local displays */
4693 switch (display_type) {
4695 curses_display_init(ds, &dpy);
4698 sdl_display_init(ds, &dpy);
4701 cocoa_display_init(ds, &dpy);
4704 gtk_display_init(ds, &dpy);
4710 /* must be after terminal init, SDL library changes signal handlers */
4711 os_setup_signal_handling();
4713 /* init remote displays */
4715 qemu_opts_foreach(qemu_find_opts("vnc"),
4716 vnc_init_func, NULL, NULL);
4720 qemu_spice_display_init();
4723 #ifdef CONFIG_OPENGL_DMABUF
4724 if (display_type == DT_EGL) {
4725 egl_headless_init(&dpy);
4729 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4733 qdev_machine_creation_done();
4735 /* TODO: once all bus devices are qdevified, this should be done
4736 * when bus is created by qdev.c */
4737 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4738 qemu_run_machine_init_done_notifiers();
4740 if (rom_check_and_register_reset() != 0) {
4741 error_report("rom check and register reset failed");
4747 /* This checkpoint is required by replay to separate prior clock
4748 reading from the other reads, because timer polling functions query
4749 clock values from the log. */
4750 replay_checkpoint(CHECKPOINT_RESET);
4751 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4752 register_global_state();
4753 if (replay_mode != REPLAY_MODE_NONE) {
4754 replay_vmstate_init();
4755 } else if (loadvm) {
4756 Error *local_err = NULL;
4757 if (load_snapshot(loadvm, &local_err) < 0) {
4758 error_report_err(local_err);
4763 qdev_prop_check_globals();
4764 if (vmstate_dump_file) {
4766 dump_vmstate_json_to_file(vmstate_dump_file);
4771 Error *local_err = NULL;
4772 qemu_start_incoming_migration(incoming, &local_err);
4774 error_reportf_err(local_err, "-incoming %s: ", incoming);
4777 } else if (autostart) {
4784 replay_disable_events();
4786 /* The ordering of the following is delicate. Stop vcpus to prevent new
4787 * I/O requests being queued by the guest. Then stop IOThreads (this
4788 * includes a drain operation and completes all request processing). At
4789 * this point emulated devices are still associated with their IOThreads
4790 * (if any) but no longer have any work to do. Only then can we close
4791 * block devices safely because we know there is no more I/O coming.
4794 iothread_stop_all();
4799 /* vhost-user must be cleaned up before chardevs. */
4805 user_creatable_cleanup();
4806 migration_object_finalize();
4807 /* TODO: unref root container, check all devices are ok */