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 "migration/postcopy-ram.h"
98 #include "sysemu/kvm.h"
99 #include "sysemu/hax.h"
100 #include "qapi/qobject-input-visitor.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qemu/main-loop.h"
106 #include "fsdev/qemu-fsdev.h"
108 #include "sysemu/qtest.h"
110 #include "disas/disas.h"
113 #include "slirp/libslirp.h"
115 #include "trace-root.h"
116 #include "trace/control.h"
117 #include "qemu/queue.h"
118 #include "sysemu/arch_init.h"
120 #include "ui/qemu-spice.h"
121 #include "qapi/string-input-visitor.h"
122 #include "qapi/opts-visitor.h"
123 #include "qom/object_interfaces.h"
124 #include "exec/semihost.h"
125 #include "crypto/init.h"
126 #include "sysemu/replay.h"
127 #include "qapi/qapi-events-run-state.h"
128 #include "qapi/qapi-visit-block-core.h"
129 #include "qapi/qapi-commands-block-core.h"
130 #include "qapi/qapi-commands-misc.h"
131 #include "qapi/qapi-commands-run-state.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
135 #define MAX_VIRTIO_CONSOLES 1
136 #define MAX_SCLP_CONSOLES 1
138 static const char *data_dir[16];
139 static int data_dir_idx;
140 const char *bios_name = NULL;
141 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
143 const char* keyboard_layout = NULL;
145 const char *mem_path = NULL;
146 int mem_prealloc = 0; /* force preallocation of physical target memory */
147 bool enable_mlock = false;
149 NICInfo nd_table[MAX_NICS];
151 static int rtc_utc = 1;
152 static int rtc_date_offset = -1; /* -1 means no change */
153 QEMUClockType rtc_clock;
154 int vga_interface_type = VGA_NONE;
155 static DisplayOptions dpy;
157 static int num_serial_hds = 0;
158 static Chardev **serial_hds = NULL;
159 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
160 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
161 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
162 int win2k_install_hack = 0;
165 unsigned int max_cpus;
168 int acpi_enabled = 1;
171 static int no_reboot;
174 int graphic_rotate = 0;
175 const char *watchdog;
176 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
179 const char *qemu_name;
182 unsigned int nb_prom_envs = 0;
183 const char *prom_envs[MAX_PROM_ENVS];
186 uint8_t *boot_splash_filedata;
187 size_t boot_splash_filedata_size;
188 uint8_t qemu_extra_params_fw[2];
190 int icount_align_option;
192 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
193 * little-endian "wire format" described in the SMBIOS 2.6 specification.
198 static NotifierList exit_notifiers =
199 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201 static NotifierList machine_init_done_notifiers =
202 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
206 enum xen_mode xen_mode = XEN_EMULATE;
207 bool xen_domid_restrict;
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_virtcon = 1;
213 static int default_sclp = 1;
214 static int default_monitor = 1;
215 static int default_floppy = 1;
216 static int default_cdrom = 1;
217 static int default_sdcard = 1;
218 static int default_vga = 1;
219 static int default_net = 1;
225 { .driver = "isa-serial", .flag = &default_serial },
226 { .driver = "isa-parallel", .flag = &default_parallel },
227 { .driver = "isa-fdc", .flag = &default_floppy },
228 { .driver = "floppy", .flag = &default_floppy },
229 { .driver = "ide-cd", .flag = &default_cdrom },
230 { .driver = "ide-hd", .flag = &default_cdrom },
231 { .driver = "ide-drive", .flag = &default_cdrom },
232 { .driver = "scsi-cd", .flag = &default_cdrom },
233 { .driver = "scsi-hd", .flag = &default_cdrom },
234 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
235 { .driver = "virtio-serial", .flag = &default_virtcon },
236 { .driver = "VGA", .flag = &default_vga },
237 { .driver = "isa-vga", .flag = &default_vga },
238 { .driver = "cirrus-vga", .flag = &default_vga },
239 { .driver = "isa-cirrus-vga", .flag = &default_vga },
240 { .driver = "vmware-svga", .flag = &default_vga },
241 { .driver = "qxl-vga", .flag = &default_vga },
242 { .driver = "virtio-vga", .flag = &default_vga },
245 static QemuOptsList qemu_rtc_opts = {
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
251 .type = QEMU_OPT_STRING,
254 .type = QEMU_OPT_STRING,
257 .type = QEMU_OPT_STRING,
259 { /* end of list */ }
263 static QemuOptsList qemu_sandbox_opts = {
265 .implied_opt_name = "enable",
266 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
270 .type = QEMU_OPT_BOOL,
274 .type = QEMU_OPT_STRING,
277 .name = "elevateprivileges",
278 .type = QEMU_OPT_STRING,
282 .type = QEMU_OPT_STRING,
285 .name = "resourcecontrol",
286 .type = QEMU_OPT_STRING,
288 { /* end of list */ }
292 static QemuOptsList qemu_option_rom_opts = {
293 .name = "option-rom",
294 .implied_opt_name = "romfile",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
299 .type = QEMU_OPT_NUMBER,
302 .type = QEMU_OPT_STRING,
304 { /* end of list */ }
308 static QemuOptsList qemu_machine_opts = {
310 .implied_opt_name = "type",
312 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
315 * no elements => accept any
316 * sanity checking will happen later
317 * when setting machine properties
323 static QemuOptsList qemu_accel_opts = {
325 .implied_opt_name = "accel",
326 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
331 .type = QEMU_OPT_STRING,
332 .help = "Select the type of accelerator",
336 .type = QEMU_OPT_STRING,
337 .help = "Enable/disable multi-threaded TCG",
339 { /* end of list */ }
343 static QemuOptsList qemu_boot_opts = {
345 .implied_opt_name = "order",
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
351 .type = QEMU_OPT_STRING,
354 .type = QEMU_OPT_STRING,
357 .type = QEMU_OPT_BOOL,
360 .type = QEMU_OPT_STRING,
362 .name = "splash-time",
363 .type = QEMU_OPT_STRING,
365 .name = "reboot-timeout",
366 .type = QEMU_OPT_STRING,
369 .type = QEMU_OPT_BOOL,
375 static QemuOptsList qemu_add_fd_opts = {
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
381 .type = QEMU_OPT_NUMBER,
382 .help = "file descriptor of which a duplicate is added to fd set",
385 .type = QEMU_OPT_NUMBER,
386 .help = "ID of the fd set to add fd to",
389 .type = QEMU_OPT_STRING,
390 .help = "free-form string used to describe fd",
392 { /* end of list */ }
396 static QemuOptsList qemu_object_opts = {
398 .implied_opt_name = "qom-type",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
405 static QemuOptsList qemu_tpmdev_opts = {
407 .implied_opt_name = "type",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
410 /* options are defined in the TPM backends */
411 { /* end of list */ }
415 static QemuOptsList qemu_realtime_opts = {
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
421 .type = QEMU_OPT_BOOL,
423 { /* end of list */ }
427 static QemuOptsList qemu_msg_opts = {
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
433 .type = QEMU_OPT_BOOL,
435 { /* end of list */ }
439 static QemuOptsList qemu_name_opts = {
441 .implied_opt_name = "guest",
443 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
447 .type = QEMU_OPT_STRING,
448 .help = "Sets the name of the guest.\n"
449 "This name will be displayed in the SDL window caption.\n"
450 "The name will also be used for the VNC server",
453 .type = QEMU_OPT_STRING,
454 .help = "Sets the name of the QEMU process, as shown in top etc",
456 .name = "debug-threads",
457 .type = QEMU_OPT_BOOL,
458 .help = "When enabled, name the individual threads; defaults off.\n"
459 "NOTE: The thread names are for debugging and not a\n"
462 { /* End of list */ }
466 static QemuOptsList qemu_mem_opts = {
468 .implied_opt_name = "size",
469 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
474 .type = QEMU_OPT_SIZE,
478 .type = QEMU_OPT_NUMBER,
482 .type = QEMU_OPT_SIZE,
484 { /* end of list */ }
488 static QemuOptsList qemu_icount_opts = {
490 .implied_opt_name = "shift",
492 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
496 .type = QEMU_OPT_STRING,
499 .type = QEMU_OPT_BOOL,
502 .type = QEMU_OPT_BOOL,
505 .type = QEMU_OPT_STRING,
508 .type = QEMU_OPT_STRING,
510 .name = "rrsnapshot",
511 .type = QEMU_OPT_STRING,
513 { /* end of list */ }
517 static QemuOptsList qemu_semihosting_config_opts = {
518 .name = "semihosting-config",
519 .implied_opt_name = "enable",
520 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
524 .type = QEMU_OPT_BOOL,
527 .type = QEMU_OPT_STRING,
530 .type = QEMU_OPT_STRING,
532 { /* end of list */ }
536 static QemuOptsList qemu_fw_cfg_opts = {
538 .implied_opt_name = "name",
539 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the fw_cfg name of the blob to be inserted",
547 .type = QEMU_OPT_STRING,
548 .help = "Sets the name of the file from which\n"
549 "the fw_cfg blob will be loaded",
552 .type = QEMU_OPT_STRING,
553 .help = "Sets content of the blob to be inserted from a string",
555 { /* end of list */ }
560 * Get machine options
562 * Returns: machine options (never null).
564 QemuOpts *qemu_get_machine_opts(void)
566 return qemu_find_opts_singleton("machine");
569 const char *qemu_get_vm_name(void)
574 static void res_free(void)
576 g_free(boot_splash_filedata);
577 boot_splash_filedata = NULL;
580 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
582 const char *driver = qemu_opt_get(opts, "driver");
587 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
588 if (strcmp(default_list[i].driver, driver) != 0)
590 *(default_list[i].flag) = 0;
595 /***********************************************************/
598 static RunState current_run_state = RUN_STATE_PRELAUNCH;
600 /* We use RUN_STATE__MAX but any invalid value will do */
601 static RunState vmstop_requested = RUN_STATE__MAX;
602 static QemuMutex vmstop_lock;
607 } RunStateTransition;
609 static const RunStateTransition runstate_transitions_def[] = {
611 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
612 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
615 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
620 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
621 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
622 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
623 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
625 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
633 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
637 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
639 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
640 { RUN_STATE_PAUSED, RUN_STATE_COLO},
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
656 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
657 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
659 { RUN_STATE_COLO, RUN_STATE_RUNNING },
661 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
662 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
664 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
665 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
668 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
669 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
670 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
671 { RUN_STATE_RUNNING, RUN_STATE_COLO},
673 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
677 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
679 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
680 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
681 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
682 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
684 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
686 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
687 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
688 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
689 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
693 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
695 { RUN_STATE__MAX, RUN_STATE__MAX },
698 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
700 bool runstate_check(RunState state)
702 return current_run_state == state;
705 bool runstate_store(char *str, size_t size)
707 const char *state = RunState_str(current_run_state);
708 size_t len = strlen(state) + 1;
713 memcpy(str, state, len);
717 static void runstate_init(void)
719 const RunStateTransition *p;
721 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
722 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
723 runstate_valid_transitions[p->from][p->to] = true;
726 qemu_mutex_init(&vmstop_lock);
729 /* This function will abort() on invalid state transitions */
730 void runstate_set(RunState new_state)
732 assert(new_state < RUN_STATE__MAX);
734 if (current_run_state == new_state) {
738 if (!runstate_valid_transitions[current_run_state][new_state]) {
739 error_report("invalid runstate transition: '%s' -> '%s'",
740 RunState_str(current_run_state),
741 RunState_str(new_state));
744 trace_runstate_set(new_state);
745 current_run_state = new_state;
748 int runstate_is_running(void)
750 return runstate_check(RUN_STATE_RUNNING);
753 bool runstate_needs_reset(void)
755 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
756 runstate_check(RUN_STATE_SHUTDOWN);
759 StatusInfo *qmp_query_status(Error **errp)
761 StatusInfo *info = g_malloc0(sizeof(*info));
763 info->running = runstate_is_running();
764 info->singlestep = singlestep;
765 info->status = current_run_state;
770 bool qemu_vmstop_requested(RunState *r)
772 qemu_mutex_lock(&vmstop_lock);
773 *r = vmstop_requested;
774 vmstop_requested = RUN_STATE__MAX;
775 qemu_mutex_unlock(&vmstop_lock);
776 return *r < RUN_STATE__MAX;
779 void qemu_system_vmstop_request_prepare(void)
781 qemu_mutex_lock(&vmstop_lock);
784 void qemu_system_vmstop_request(RunState state)
786 vmstop_requested = state;
787 qemu_mutex_unlock(&vmstop_lock);
791 /***********************************************************/
792 /* real time host monotonic timer */
794 static time_t qemu_time(void)
796 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
799 /***********************************************************/
800 /* host time/date access */
801 void qemu_get_timedate(struct tm *tm, int offset)
803 time_t ti = qemu_time();
806 if (rtc_date_offset == -1) {
810 localtime_r(&ti, tm);
812 ti -= rtc_date_offset;
817 int qemu_timedate_diff(struct tm *tm)
821 if (rtc_date_offset == -1)
823 seconds = mktimegm(tm);
826 tmp.tm_isdst = -1; /* use timezone to figure it out */
827 seconds = mktime(&tmp);
830 seconds = mktimegm(tm) + rtc_date_offset;
832 return seconds - qemu_time();
835 static void configure_rtc_date_offset(const char *startdate, int legacy)
837 time_t rtc_start_date;
840 if (!strcmp(startdate, "now") && legacy) {
841 rtc_date_offset = -1;
843 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
851 } else if (sscanf(startdate, "%d-%d-%d",
863 rtc_start_date = mktimegm(&tm);
864 if (rtc_start_date == -1) {
866 error_report("invalid date format");
867 error_printf("valid formats: "
868 "'2006-06-17T16:01:21' or '2006-06-17'\n");
871 rtc_date_offset = qemu_time() - rtc_start_date;
875 static void configure_rtc(QemuOpts *opts)
879 value = qemu_opt_get(opts, "base");
881 if (!strcmp(value, "utc")) {
883 } else if (!strcmp(value, "localtime")) {
884 Error *blocker = NULL;
886 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
887 "-rtc base=localtime");
888 replay_add_blocker(blocker);
890 configure_rtc_date_offset(value, 0);
893 value = qemu_opt_get(opts, "clock");
895 if (!strcmp(value, "host")) {
896 rtc_clock = QEMU_CLOCK_HOST;
897 } else if (!strcmp(value, "rt")) {
898 rtc_clock = QEMU_CLOCK_REALTIME;
899 } else if (!strcmp(value, "vm")) {
900 rtc_clock = QEMU_CLOCK_VIRTUAL;
902 error_report("invalid option value '%s'", value);
906 value = qemu_opt_get(opts, "driftfix");
908 if (!strcmp(value, "slew")) {
909 static GlobalProperty slew_lost_ticks = {
910 .driver = "mc146818rtc",
911 .property = "lost_tick_policy",
915 qdev_prop_register_global(&slew_lost_ticks);
916 } else if (!strcmp(value, "none")) {
917 /* discard is default */
919 error_report("invalid option value '%s'", value);
925 /***********************************************************/
926 /* Bluetooth support */
929 static struct HCIInfo *hci_table[MAX_NICS];
931 struct HCIInfo *qemu_next_hci(void)
933 if (cur_hci == nb_hcis)
936 return hci_table[cur_hci++];
939 static int bt_hci_parse(const char *str)
944 if (nb_hcis >= MAX_NICS) {
945 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
958 bdaddr.b[5] = 0x56 + nb_hcis;
959 hci->bdaddr_set(hci, bdaddr.b);
961 hci_table[nb_hcis++] = hci;
966 static void bt_vhci_add(int vlan_id)
968 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
971 warn_report("adding a VHCI to an empty scatternet %i",
974 bt_vhci_init(bt_new_hci(vlan));
977 static struct bt_device_s *bt_device_add(const char *opt)
979 struct bt_scatternet_s *vlan;
981 char *endp = strstr(opt, ",vlan=");
982 int len = (endp ? endp - opt : strlen(opt)) + 1;
985 pstrcpy(devname, MIN(sizeof(devname), len), opt);
988 vlan_id = strtol(endp + 6, &endp, 0);
990 error_report("unrecognised bluetooth vlan Id");
995 vlan = qemu_find_bt_vlan(vlan_id);
998 warn_report("adding a slave device to an empty scatternet %i",
1001 if (!strcmp(devname, "keyboard"))
1002 return bt_keyboard_init(vlan);
1004 error_report("unsupported bluetooth device '%s'", devname);
1008 static int bt_parse(const char *opt)
1010 const char *endp, *p;
1013 if (strstart(opt, "hci", &endp)) {
1014 if (!*endp || *endp == ',') {
1016 if (!strstart(endp, ",vlan=", 0))
1019 return bt_hci_parse(opt);
1021 } else if (strstart(opt, "vhci", &endp)) {
1022 if (!*endp || *endp == ',') {
1024 if (strstart(endp, ",vlan=", &p)) {
1025 vlan = strtol(p, (char **) &endp, 0);
1027 error_report("bad scatternet '%s'", p);
1031 error_report("bad parameter '%s'", endp + 1);
1040 } else if (strstart(opt, "device:", &endp))
1041 return !bt_device_add(endp);
1043 error_report("bad bluetooth parameter '%s'", opt);
1047 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1049 if (qemu_opt_get_bool(opts, "enable", false)) {
1050 #ifdef CONFIG_SECCOMP
1051 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1052 | QEMU_SECCOMP_SET_OBSOLETE;
1053 const char *value = NULL;
1055 value = qemu_opt_get(opts, "obsolete");
1057 if (g_str_equal(value, "allow")) {
1058 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1059 } else if (g_str_equal(value, "deny")) {
1060 /* this is the default option, this if is here
1061 * to provide a little bit of consistency for
1062 * the command line */
1064 error_report("invalid argument for obsolete");
1069 value = qemu_opt_get(opts, "elevateprivileges");
1071 if (g_str_equal(value, "deny")) {
1072 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1073 } else if (g_str_equal(value, "children")) {
1074 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1076 /* calling prctl directly because we're
1077 * not sure if host has CAP_SYS_ADMIN set*/
1078 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1079 error_report("failed to set no_new_privs "
1083 } else if (g_str_equal(value, "allow")) {
1086 error_report("invalid argument for elevateprivileges");
1091 value = qemu_opt_get(opts, "spawn");
1093 if (g_str_equal(value, "deny")) {
1094 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1095 } else if (g_str_equal(value, "allow")) {
1098 error_report("invalid argument for spawn");
1103 value = qemu_opt_get(opts, "resourcecontrol");
1105 if (g_str_equal(value, "deny")) {
1106 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1107 } else if (g_str_equal(value, "allow")) {
1110 error_report("invalid argument for resourcecontrol");
1115 if (seccomp_start(seccomp_opts) < 0) {
1116 error_report("failed to install seccomp syscall filter "
1121 error_report("seccomp support is disabled");
1129 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1131 const char *proc_name;
1133 if (qemu_opt_get(opts, "debug-threads")) {
1134 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1136 qemu_name = qemu_opt_get(opts, "guest");
1138 proc_name = qemu_opt_get(opts, "process");
1140 os_set_proc_name(proc_name);
1146 bool defaults_enabled(void)
1148 return has_defaults;
1152 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1154 int fd, dupfd, flags;
1156 const char *fd_opaque = NULL;
1159 fd = qemu_opt_get_number(opts, "fd", -1);
1160 fdset_id = qemu_opt_get_number(opts, "set", -1);
1161 fd_opaque = qemu_opt_get(opts, "opaque");
1164 error_report("fd option is required and must be non-negative");
1168 if (fd <= STDERR_FILENO) {
1169 error_report("fd cannot be a standard I/O stream");
1174 * All fds inherited across exec() necessarily have FD_CLOEXEC
1175 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1177 flags = fcntl(fd, F_GETFD);
1178 if (flags == -1 || (flags & FD_CLOEXEC)) {
1179 error_report("fd is not valid or already in use");
1184 error_report("set option is required and must be non-negative");
1188 #ifdef F_DUPFD_CLOEXEC
1189 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1193 qemu_set_cloexec(dupfd);
1197 error_report("error duplicating fd: %s", strerror(errno));
1201 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1202 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1209 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1213 fd = qemu_opt_get_number(opts, "fd", -1);
1220 /***********************************************************/
1221 /* QEMU Block devices */
1223 #define HD_OPTS "media=disk"
1224 #define CDROM_OPTS "media=cdrom"
1226 #define PFLASH_OPTS ""
1230 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1232 BlockInterfaceType *block_default_type = opaque;
1234 return drive_new(opts, *block_default_type) == NULL;
1237 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1239 if (qemu_opt_get(opts, "snapshot") == NULL) {
1240 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1245 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1246 int index, const char *optstr)
1251 if (!enable || drive_get_by_index(type, index)) {
1255 opts = drive_add(type, index, NULL, optstr);
1257 drive_enable_snapshot(NULL, opts, NULL);
1260 dinfo = drive_new(opts, type);
1264 dinfo->is_default = true;
1268 static QemuOptsList qemu_smp_opts = {
1270 .implied_opt_name = "cpus",
1271 .merge_lists = true,
1272 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1276 .type = QEMU_OPT_NUMBER,
1279 .type = QEMU_OPT_NUMBER,
1282 .type = QEMU_OPT_NUMBER,
1285 .type = QEMU_OPT_NUMBER,
1288 .type = QEMU_OPT_NUMBER,
1290 { /*End of list */ }
1294 static void smp_parse(QemuOpts *opts)
1297 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1298 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1299 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1300 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1302 /* compute missing values, prefer sockets over cores over threads */
1303 if (cpus == 0 || sockets == 0) {
1304 sockets = sockets > 0 ? sockets : 1;
1305 cores = cores > 0 ? cores : 1;
1306 threads = threads > 0 ? threads : 1;
1308 cpus = cores * threads * sockets;
1310 } else if (cores == 0) {
1311 threads = threads > 0 ? threads : 1;
1312 cores = cpus / (sockets * threads);
1313 cores = cores > 0 ? cores : 1;
1314 } else if (threads == 0) {
1315 threads = cpus / (cores * sockets);
1316 threads = threads > 0 ? threads : 1;
1317 } else if (sockets * cores * threads < cpus) {
1318 error_report("cpu topology: "
1319 "sockets (%u) * cores (%u) * threads (%u) < "
1321 sockets, cores, threads, cpus);
1325 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1327 if (max_cpus < cpus) {
1328 error_report("maxcpus must be equal to or greater than smp");
1332 if (sockets * cores * threads > max_cpus) {
1333 error_report("cpu topology: "
1334 "sockets (%u) * cores (%u) * threads (%u) > "
1336 sockets, cores, threads, max_cpus);
1342 smp_threads = threads;
1346 Error *blocker = NULL;
1347 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1348 replay_add_blocker(blocker);
1352 static void realtime_init(void)
1355 if (os_mlock() < 0) {
1356 error_report("locking memory failed");
1363 static void configure_msg(QemuOpts *opts)
1365 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1368 /***********************************************************/
1371 typedef struct SemihostingConfig {
1373 SemihostingTarget target;
1376 const char *cmdline; /* concatenated argv */
1377 } SemihostingConfig;
1379 static SemihostingConfig semihosting;
1381 bool semihosting_enabled(void)
1383 return semihosting.enabled;
1386 SemihostingTarget semihosting_get_target(void)
1388 return semihosting.target;
1391 const char *semihosting_get_arg(int i)
1393 if (i >= semihosting.argc) {
1396 return semihosting.argv[i];
1399 int semihosting_get_argc(void)
1401 return semihosting.argc;
1404 const char *semihosting_get_cmdline(void)
1406 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1407 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1409 return semihosting.cmdline;
1412 static int add_semihosting_arg(void *opaque,
1413 const char *name, const char *val,
1416 SemihostingConfig *s = opaque;
1417 if (strcmp(name, "arg") == 0) {
1419 /* one extra element as g_strjoinv() expects NULL-terminated array */
1420 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1421 s->argv[s->argc - 1] = val;
1422 s->argv[s->argc] = NULL;
1427 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1428 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1433 add_semihosting_arg(&semihosting, "arg", file, NULL);
1435 /* split -append and initialize argv[1..n] */
1436 cmd_token = strtok(g_strdup(cmd), " ");
1438 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1439 cmd_token = strtok(NULL, " ");
1443 /* Now we still need this for compatibility with XEN. */
1444 bool has_igd_gfx_passthru;
1445 static void igd_gfx_passthru(void)
1447 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1450 /***********************************************************/
1453 static int usb_device_add(const char *devname)
1455 USBDevice *dev = NULL;
1457 if (!machine_usb(current_machine)) {
1461 dev = usbdevice_create(devname);
1468 static int usb_parse(const char *cmdline)
1471 r = usb_device_add(cmdline);
1473 error_report("could not add USB device '%s'", cmdline);
1478 /***********************************************************/
1479 /* machine registration */
1481 MachineState *current_machine;
1483 static MachineClass *find_machine(const char *name)
1485 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1486 MachineClass *mc = NULL;
1488 for (el = machines; el; el = el->next) {
1489 MachineClass *temp = el->data;
1491 if (!strcmp(temp->name, name)) {
1496 !strcmp(temp->alias, name)) {
1502 g_slist_free(machines);
1506 MachineClass *find_default_machine(void)
1508 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1509 MachineClass *mc = NULL;
1511 for (el = machines; el; el = el->next) {
1512 MachineClass *temp = el->data;
1514 if (temp->is_default) {
1520 g_slist_free(machines);
1524 MachineInfoList *qmp_query_machines(Error **errp)
1526 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1527 MachineInfoList *mach_list = NULL;
1529 for (el = machines; el; el = el->next) {
1530 MachineClass *mc = el->data;
1531 MachineInfoList *entry;
1534 info = g_malloc0(sizeof(*info));
1535 if (mc->is_default) {
1536 info->has_is_default = true;
1537 info->is_default = true;
1541 info->has_alias = true;
1542 info->alias = g_strdup(mc->alias);
1545 info->name = g_strdup(mc->name);
1546 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1547 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1549 entry = g_malloc0(sizeof(*entry));
1550 entry->value = info;
1551 entry->next = mach_list;
1555 g_slist_free(machines);
1559 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1561 ObjectProperty *prop;
1562 ObjectPropertyIterator iter;
1564 if (!qemu_opt_has_help_opt(opts)) {
1568 object_property_iter_init(&iter, OBJECT(machine));
1569 while ((prop = object_property_iter_next(&iter))) {
1574 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1575 prop->name, prop->type);
1576 if (prop->description) {
1577 error_printf(" (%s)\n", prop->description);
1586 /***********************************************************/
1587 /* main execution loop */
1589 struct vm_change_state_entry {
1590 VMChangeStateHandler *cb;
1592 QLIST_ENTRY (vm_change_state_entry) entries;
1595 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1597 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1600 VMChangeStateEntry *e;
1602 e = g_malloc0(sizeof (*e));
1606 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1610 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1612 QLIST_REMOVE (e, entries);
1616 void vm_state_notify(int running, RunState state)
1618 VMChangeStateEntry *e, *next;
1620 trace_vm_state_notify(running, state);
1622 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1623 e->cb(e->opaque, running, state);
1627 static ShutdownCause reset_requested;
1628 static ShutdownCause shutdown_requested;
1629 static int shutdown_signal;
1630 static pid_t shutdown_pid;
1631 static int powerdown_requested;
1632 static int debug_requested;
1633 static int suspend_requested;
1634 static WakeupReason wakeup_reason;
1635 static NotifierList powerdown_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1637 static NotifierList suspend_notifiers =
1638 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1639 static NotifierList wakeup_notifiers =
1640 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1641 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1643 ShutdownCause qemu_shutdown_requested_get(void)
1645 return shutdown_requested;
1648 ShutdownCause qemu_reset_requested_get(void)
1650 return reset_requested;
1653 static int qemu_shutdown_requested(void)
1655 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1658 static void qemu_kill_report(void)
1660 if (!qtest_driver() && shutdown_signal) {
1661 if (shutdown_pid == 0) {
1662 /* This happens for eg ^C at the terminal, so it's worth
1663 * avoiding printing an odd message in that case.
1665 error_report("terminating on signal %d", shutdown_signal);
1667 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1669 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1670 shutdown_signal, shutdown_pid,
1671 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1672 g_free(shutdown_cmd);
1674 shutdown_signal = 0;
1678 static ShutdownCause qemu_reset_requested(void)
1680 ShutdownCause r = reset_requested;
1682 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1683 reset_requested = SHUTDOWN_CAUSE_NONE;
1686 return SHUTDOWN_CAUSE_NONE;
1689 static int qemu_suspend_requested(void)
1691 int r = suspend_requested;
1692 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1693 suspend_requested = 0;
1699 static WakeupReason qemu_wakeup_requested(void)
1701 return wakeup_reason;
1704 static int qemu_powerdown_requested(void)
1706 int r = powerdown_requested;
1707 powerdown_requested = 0;
1711 static int qemu_debug_requested(void)
1713 int r = debug_requested;
1714 debug_requested = 0;
1719 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1721 void qemu_system_reset(ShutdownCause reason)
1725 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1727 cpu_synchronize_all_states();
1729 if (mc && mc->reset) {
1732 qemu_devices_reset();
1735 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1738 cpu_synchronize_all_post_reset();
1741 void qemu_system_guest_panicked(GuestPanicInformation *info)
1743 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1746 current_cpu->crash_occurred = true;
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1749 !!info, info, &error_abort);
1750 vm_stop(RUN_STATE_GUEST_PANICKED);
1752 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1753 !!info, info, &error_abort);
1754 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1758 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1759 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1760 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1761 info->u.hyper_v.arg1,
1762 info->u.hyper_v.arg2,
1763 info->u.hyper_v.arg3,
1764 info->u.hyper_v.arg4,
1765 info->u.hyper_v.arg5);
1766 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1767 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1768 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1770 S390CrashReason_str(info->u.s390.reason),
1771 info->u.s390.psw_mask,
1772 info->u.s390.psw_addr);
1774 qapi_free_GuestPanicInformation(info);
1778 void qemu_system_reset_request(ShutdownCause reason)
1781 shutdown_requested = reason;
1783 reset_requested = reason;
1786 qemu_notify_event();
1789 static void qemu_system_suspend(void)
1792 notifier_list_notify(&suspend_notifiers, NULL);
1793 runstate_set(RUN_STATE_SUSPENDED);
1794 qapi_event_send_suspend(&error_abort);
1797 void qemu_system_suspend_request(void)
1799 if (runstate_check(RUN_STATE_SUSPENDED)) {
1802 suspend_requested = 1;
1804 qemu_notify_event();
1807 void qemu_register_suspend_notifier(Notifier *notifier)
1809 notifier_list_add(&suspend_notifiers, notifier);
1812 void qemu_system_wakeup_request(WakeupReason reason)
1814 trace_system_wakeup_request(reason);
1816 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1819 if (!(wakeup_reason_mask & (1 << reason))) {
1822 runstate_set(RUN_STATE_RUNNING);
1823 wakeup_reason = reason;
1824 qemu_notify_event();
1827 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1830 wakeup_reason_mask |= (1 << reason);
1832 wakeup_reason_mask &= ~(1 << reason);
1836 void qemu_register_wakeup_notifier(Notifier *notifier)
1838 notifier_list_add(&wakeup_notifiers, notifier);
1841 void qemu_system_killed(int signal, pid_t pid)
1843 shutdown_signal = signal;
1847 /* Cannot call qemu_system_shutdown_request directly because
1848 * we are in a signal handler.
1850 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1851 qemu_notify_event();
1854 void qemu_system_shutdown_request(ShutdownCause reason)
1856 trace_qemu_system_shutdown_request(reason);
1857 replay_shutdown_request(reason);
1858 shutdown_requested = reason;
1859 qemu_notify_event();
1862 static void qemu_system_powerdown(void)
1864 qapi_event_send_powerdown(&error_abort);
1865 notifier_list_notify(&powerdown_notifiers, NULL);
1868 void qemu_system_powerdown_request(void)
1870 trace_qemu_system_powerdown_request();
1871 powerdown_requested = 1;
1872 qemu_notify_event();
1875 void qemu_register_powerdown_notifier(Notifier *notifier)
1877 notifier_list_add(&powerdown_notifiers, notifier);
1880 void qemu_system_debug_request(void)
1882 debug_requested = 1;
1883 qemu_notify_event();
1886 static bool main_loop_should_exit(void)
1889 ShutdownCause request;
1891 if (qemu_debug_requested()) {
1892 vm_stop(RUN_STATE_DEBUG);
1894 if (qemu_suspend_requested()) {
1895 qemu_system_suspend();
1897 request = qemu_shutdown_requested();
1900 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1903 vm_stop(RUN_STATE_SHUTDOWN);
1908 request = qemu_reset_requested();
1911 qemu_system_reset(request);
1913 if (!runstate_check(RUN_STATE_RUNNING) &&
1914 !runstate_check(RUN_STATE_INMIGRATE)) {
1915 runstate_set(RUN_STATE_PRELAUNCH);
1918 if (qemu_wakeup_requested()) {
1920 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1921 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1922 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1924 qapi_event_send_wakeup(&error_abort);
1926 if (qemu_powerdown_requested()) {
1927 qemu_system_powerdown();
1929 if (qemu_vmstop_requested(&r)) {
1935 static void main_loop(void)
1937 #ifdef CONFIG_PROFILER
1941 #ifdef CONFIG_PROFILER
1942 ti = profile_getclock();
1944 main_loop_wait(false);
1945 #ifdef CONFIG_PROFILER
1946 dev_time += profile_getclock() - ti;
1948 } while (!main_loop_should_exit());
1951 static void version(void)
1953 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1954 QEMU_COPYRIGHT "\n");
1957 static void help(int exitcode)
1960 printf("usage: %s [options] [disk_image]\n\n"
1961 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1962 error_get_progname());
1964 #define QEMU_OPTIONS_GENERATE_HELP
1965 #include "qemu-options-wrapper.h"
1967 printf("\nDuring emulation, the following keys are useful:\n"
1968 "ctrl-alt-f toggle full screen\n"
1969 "ctrl-alt-n switch to virtual console 'n'\n"
1970 "ctrl-alt toggle mouse and keyboard grab\n"
1972 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1974 QEMU_HELP_BOTTOM "\n");
1979 #define HAS_ARG 0x0001
1981 typedef struct QEMUOption {
1988 static const QEMUOption qemu_options[] = {
1989 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1990 #define QEMU_OPTIONS_GENERATE_OPTIONS
1991 #include "qemu-options-wrapper.h"
1995 typedef struct VGAInterfaceInfo {
1996 const char *opt_name; /* option name */
1997 const char *name; /* human-readable name */
1998 /* Class names indicating that support is available.
1999 * If no class is specified, the interface is always available */
2000 const char *class_names[2];
2003 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2009 .name = "standard VGA",
2010 .class_names = { "VGA", "isa-vga" },
2013 .opt_name = "cirrus",
2014 .name = "Cirrus VGA",
2015 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2018 .opt_name = "vmware",
2019 .name = "VMWare SVGA",
2020 .class_names = { "vmware-svga" },
2023 .opt_name = "virtio",
2024 .name = "Virtio VGA",
2025 .class_names = { "virtio-vga" },
2030 .class_names = { "qxl-vga" },
2034 .name = "TCX framebuffer",
2035 .class_names = { "SUNW,tcx" },
2039 .name = "CG3 framebuffer",
2040 .class_names = { "cgthree" },
2043 .opt_name = "xenfb",
2047 static bool vga_interface_available(VGAInterfaceType t)
2049 VGAInterfaceInfo *ti = &vga_interfaces[t];
2051 assert(t < VGA_TYPE_MAX);
2052 return !ti->class_names[0] ||
2053 object_class_by_name(ti->class_names[0]) ||
2054 object_class_by_name(ti->class_names[1]);
2057 static void select_vgahw(const char *p)
2062 assert(vga_interface_type == VGA_NONE);
2063 for (t = 0; t < VGA_TYPE_MAX; t++) {
2064 VGAInterfaceInfo *ti = &vga_interfaces[t];
2065 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2066 if (!vga_interface_available(t)) {
2067 error_report("%s not available", ti->name);
2070 vga_interface_type = t;
2074 if (t == VGA_TYPE_MAX) {
2076 error_report("unknown vga type: %s", p);
2080 const char *nextopt;
2082 if (strstart(opts, ",retrace=", &nextopt)) {
2084 if (strstart(opts, "dumb", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_DUMB;
2086 else if (strstart(opts, "precise", &nextopt))
2087 vga_retrace_method = VGA_RETRACE_PRECISE;
2088 else goto invalid_vga;
2089 } else goto invalid_vga;
2094 static void parse_display(const char *p)
2098 if (strstart(p, "sdl", &opts)) {
2099 dpy.type = DISPLAY_TYPE_SDL;
2101 const char *nextopt;
2103 if (strstart(opts, ",frame=", &nextopt)) {
2104 g_printerr("The frame= sdl option is deprecated, and will be\n"
2105 "removed in a future release.\n");
2107 if (strstart(opts, "on", &nextopt)) {
2109 } else if (strstart(opts, "off", &nextopt)) {
2112 goto invalid_sdl_args;
2114 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2116 if (strstart(opts, "on", &nextopt)) {
2118 } else if (strstart(opts, "off", &nextopt)) {
2121 goto invalid_sdl_args;
2123 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2125 if (strstart(opts, "on", &nextopt)) {
2127 } else if (strstart(opts, "off", &nextopt)) {
2130 goto invalid_sdl_args;
2132 } else if (strstart(opts, ",window_close=", &nextopt)) {
2134 dpy.has_window_close = true;
2135 if (strstart(opts, "on", &nextopt)) {
2136 dpy.window_close = true;
2137 } else if (strstart(opts, "off", &nextopt)) {
2138 dpy.window_close = false;
2140 goto invalid_sdl_args;
2142 } else if (strstart(opts, ",gl=", &nextopt)) {
2145 if (strstart(opts, "on", &nextopt)) {
2147 } else if (strstart(opts, "off", &nextopt)) {
2150 goto invalid_sdl_args;
2154 error_report("invalid SDL option string");
2159 } else if (strstart(p, "vnc", &opts)) {
2161 vnc_parse(opts + 1, &error_fatal);
2163 error_report("VNC requires a display argument vnc=<display>");
2166 } else if (strstart(p, "egl-headless", &opts)) {
2167 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2168 } else if (strstart(p, "curses", &opts)) {
2169 dpy.type = DISPLAY_TYPE_CURSES;
2170 } else if (strstart(p, "gtk", &opts)) {
2171 dpy.type = DISPLAY_TYPE_GTK;
2173 const char *nextopt;
2175 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2177 dpy.u.gtk.has_grab_on_hover = true;
2178 if (strstart(opts, "on", &nextopt)) {
2179 dpy.u.gtk.grab_on_hover = true;
2180 } else if (strstart(opts, "off", &nextopt)) {
2181 dpy.u.gtk.grab_on_hover = false;
2183 goto invalid_gtk_args;
2185 } else if (strstart(opts, ",gl=", &nextopt)) {
2188 if (strstart(opts, "on", &nextopt)) {
2190 } else if (strstart(opts, "off", &nextopt)) {
2193 goto invalid_gtk_args;
2197 error_report("invalid GTK option string");
2202 } else if (strstart(p, "none", &opts)) {
2203 dpy.type = DISPLAY_TYPE_NONE;
2205 error_report("unknown display type");
2210 static int balloon_parse(const char *arg)
2214 warn_report("This option is deprecated. "
2215 "Use '--device virtio-balloon' to enable the balloon device.");
2217 if (strcmp(arg, "none") == 0) {
2221 if (!strncmp(arg, "virtio", 6)) {
2222 if (arg[6] == ',') {
2223 /* have params -> parse them */
2224 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2229 /* create empty opts */
2230 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2233 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2240 char *qemu_find_file(int type, const char *name)
2246 /* Try the name as a straight path first */
2247 if (access(name, R_OK) == 0) {
2248 trace_load_file(name, name);
2249 return g_strdup(name);
2253 case QEMU_FILE_TYPE_BIOS:
2256 case QEMU_FILE_TYPE_KEYMAP:
2257 subdir = "keymaps/";
2263 for (i = 0; i < data_dir_idx; i++) {
2264 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2265 if (access(buf, R_OK) == 0) {
2266 trace_load_file(name, buf);
2274 static void qemu_add_data_dir(const char *path)
2281 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2284 for (i = 0; i < data_dir_idx; i++) {
2285 if (strcmp(data_dir[i], path) == 0) {
2286 return; /* duplicate */
2289 data_dir[data_dir_idx++] = g_strdup(path);
2292 static inline bool nonempty_str(const char *str)
2297 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2301 const char *name, *file, *str;
2302 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2304 if (fw_cfg == NULL) {
2305 error_report("fw_cfg device not available");
2308 name = qemu_opt_get(opts, "name");
2309 file = qemu_opt_get(opts, "file");
2310 str = qemu_opt_get(opts, "string");
2312 /* we need name and either a file or the content string */
2313 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2314 error_report("invalid argument(s)");
2317 if (nonempty_str(file) && nonempty_str(str)) {
2318 error_report("file and string are mutually exclusive");
2321 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2322 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2325 if (strncmp(name, "opt/", 4) != 0) {
2326 warn_report("externally provided fw_cfg item names "
2327 "should be prefixed with \"opt/\"");
2329 if (nonempty_str(str)) {
2330 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2331 buf = g_memdup(str, size);
2333 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2334 error_report("can't load %s", file);
2338 /* For legacy, keep user files in a specific global order. */
2339 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2340 fw_cfg_add_file(fw_cfg, name, buf, size);
2341 fw_cfg_reset_order_override(fw_cfg);
2345 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2347 return qdev_device_help(opts);
2350 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2355 dev = qdev_device_add(opts, &err);
2357 error_report_err(err);
2360 object_unref(OBJECT(dev));
2364 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2366 Error *local_err = NULL;
2368 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2370 error_report_err(local_err);
2378 #ifdef CONFIG_VIRTFS
2379 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2381 return qemu_fsdev_add(opts);
2385 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2388 const char *chardev;
2392 mode = qemu_opt_get(opts, "mode");
2396 if (strcmp(mode, "readline") == 0) {
2397 flags = MONITOR_USE_READLINE;
2398 } else if (strcmp(mode, "control") == 0) {
2399 flags = MONITOR_USE_CONTROL;
2401 error_report("unknown monitor mode \"%s\"", mode);
2405 if (qemu_opt_get_bool(opts, "pretty", 0))
2406 flags |= MONITOR_USE_PRETTY;
2408 /* OOB is off by default */
2409 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2410 flags |= MONITOR_USE_OOB;
2413 chardev = qemu_opt_get(opts, "chardev");
2414 chr = qemu_chr_find(chardev);
2416 error_report("chardev \"%s\" not found", chardev);
2420 monitor_init(chr, flags);
2424 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2426 static int monitor_device_index = 0;
2431 if (strstart(optarg, "chardev:", &p)) {
2432 snprintf(label, sizeof(label), "%s", p);
2434 snprintf(label, sizeof(label), "compat_monitor%d",
2435 monitor_device_index);
2436 opts = qemu_chr_parse_compat(label, optarg);
2438 error_report("parse error: %s", optarg);
2443 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2444 qemu_opt_set(opts, "mode", mode, &error_abort);
2445 qemu_opt_set(opts, "chardev", label, &error_abort);
2446 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2447 monitor_device_index++;
2450 struct device_config {
2452 DEV_USB, /* -usbdevice */
2454 DEV_SERIAL, /* -serial */
2455 DEV_PARALLEL, /* -parallel */
2456 DEV_VIRTCON, /* -virtioconsole */
2457 DEV_DEBUGCON, /* -debugcon */
2458 DEV_GDB, /* -gdb, -s */
2459 DEV_SCLP, /* s390 sclp */
2461 const char *cmdline;
2463 QTAILQ_ENTRY(device_config) next;
2466 static QTAILQ_HEAD(, device_config) device_configs =
2467 QTAILQ_HEAD_INITIALIZER(device_configs);
2469 static void add_device_config(int type, const char *cmdline)
2471 struct device_config *conf;
2473 conf = g_malloc0(sizeof(*conf));
2475 conf->cmdline = cmdline;
2476 loc_save(&conf->loc);
2477 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2480 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2482 struct device_config *conf;
2485 QTAILQ_FOREACH(conf, &device_configs, next) {
2486 if (conf->type != type)
2488 loc_push_restore(&conf->loc);
2489 rc = func(conf->cmdline);
2490 loc_pop(&conf->loc);
2498 static int serial_parse(const char *devname)
2500 int index = num_serial_hds;
2503 if (strcmp(devname, "none") == 0)
2505 snprintf(label, sizeof(label), "serial%d", index);
2506 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2508 serial_hds[index] = qemu_chr_new(label, devname);
2509 if (!serial_hds[index]) {
2510 error_report("could not connect serial device"
2511 " to character backend '%s'", devname);
2518 Chardev *serial_hd(int i)
2521 if (i < num_serial_hds) {
2522 return serial_hds[i];
2527 int serial_max_hds(void)
2529 return num_serial_hds;
2532 static int parallel_parse(const char *devname)
2534 static int index = 0;
2537 if (strcmp(devname, "none") == 0)
2539 if (index == MAX_PARALLEL_PORTS) {
2540 error_report("too many parallel ports");
2543 snprintf(label, sizeof(label), "parallel%d", index);
2544 parallel_hds[index] = qemu_chr_new(label, devname);
2545 if (!parallel_hds[index]) {
2546 error_report("could not connect parallel device"
2547 " to character backend '%s'", devname);
2554 static int virtcon_parse(const char *devname)
2556 QemuOptsList *device = qemu_find_opts("device");
2557 static int index = 0;
2559 QemuOpts *bus_opts, *dev_opts;
2561 if (strcmp(devname, "none") == 0)
2563 if (index == MAX_VIRTIO_CONSOLES) {
2564 error_report("too many virtio consoles");
2568 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2569 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2571 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2572 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2574 snprintf(label, sizeof(label), "virtcon%d", index);
2575 virtcon_hds[index] = qemu_chr_new(label, devname);
2576 if (!virtcon_hds[index]) {
2577 error_report("could not connect virtio console"
2578 " to character backend '%s'", devname);
2581 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2587 static int sclp_parse(const char *devname)
2589 QemuOptsList *device = qemu_find_opts("device");
2590 static int index = 0;
2594 if (strcmp(devname, "none") == 0) {
2597 if (index == MAX_SCLP_CONSOLES) {
2598 error_report("too many sclp consoles");
2602 assert(arch_type == QEMU_ARCH_S390X);
2604 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2605 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2607 snprintf(label, sizeof(label), "sclpcon%d", index);
2608 sclp_hds[index] = qemu_chr_new(label, devname);
2609 if (!sclp_hds[index]) {
2610 error_report("could not connect sclp console"
2611 " to character backend '%s'", devname);
2614 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2620 static int debugcon_parse(const char *devname)
2624 if (!qemu_chr_new("debugcon", devname)) {
2627 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2629 error_report("already have a debugcon device");
2632 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2633 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2637 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2639 const MachineClass *mc1 = a, *mc2 = b;
2642 if (mc1->family == NULL) {
2643 if (mc2->family == NULL) {
2644 /* Compare standalone machine types against each other; they sort
2645 * in increasing order.
2647 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2648 object_class_get_name(OBJECT_CLASS(mc2)));
2651 /* Standalone machine types sort after families. */
2655 if (mc2->family == NULL) {
2656 /* Families sort before standalone machine types. */
2660 /* Families sort between each other alphabetically increasingly. */
2661 res = strcmp(mc1->family, mc2->family);
2666 /* Within the same family, machine types sort in decreasing order. */
2667 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2668 object_class_get_name(OBJECT_CLASS(mc1)));
2671 static MachineClass *machine_parse(const char *name)
2673 MachineClass *mc = NULL;
2674 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2677 mc = find_machine(name);
2680 g_slist_free(machines);
2683 if (name && !is_help_option(name)) {
2684 error_report("unsupported machine type");
2685 error_printf("Use -machine help to list supported machines\n");
2687 printf("Supported machines are:\n");
2688 machines = g_slist_sort(machines, machine_class_cmp);
2689 for (el = machines; el; el = el->next) {
2690 MachineClass *mc = el->data;
2692 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2694 printf("%-20s %s%s\n", mc->name, mc->desc,
2695 mc->is_default ? " (default)" : "");
2699 g_slist_free(machines);
2700 exit(!name || !is_help_option(name));
2703 void qemu_add_exit_notifier(Notifier *notify)
2705 notifier_list_add(&exit_notifiers, notify);
2708 void qemu_remove_exit_notifier(Notifier *notify)
2710 notifier_remove(notify);
2713 static void qemu_run_exit_notifiers(void)
2715 notifier_list_notify(&exit_notifiers, NULL);
2718 bool machine_init_done;
2720 void qemu_add_machine_init_done_notifier(Notifier *notify)
2722 notifier_list_add(&machine_init_done_notifiers, notify);
2723 if (machine_init_done) {
2724 notify->notify(notify, NULL);
2728 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2730 notifier_remove(notify);
2733 static void qemu_run_machine_init_done_notifiers(void)
2735 machine_init_done = true;
2736 notifier_list_notify(&machine_init_done_notifiers, NULL);
2739 static const QEMUOption *lookup_opt(int argc, char **argv,
2740 const char **poptarg, int *poptind)
2742 const QEMUOption *popt;
2743 int optind = *poptind;
2744 char *r = argv[optind];
2747 loc_set_cmdline(argv, optind, 1);
2749 /* Treat --foo the same as -foo. */
2752 popt = qemu_options;
2755 error_report("invalid option");
2758 if (!strcmp(popt->name, r + 1))
2762 if (popt->flags & HAS_ARG) {
2763 if (optind >= argc) {
2764 error_report("requires an argument");
2767 optarg = argv[optind++];
2768 loc_set_cmdline(argv, optind - 2, 2);
2779 static MachineClass *select_machine(void)
2781 MachineClass *machine_class = find_default_machine();
2786 loc_push_none(&loc);
2788 opts = qemu_get_machine_opts();
2789 qemu_opts_loc_restore(opts);
2791 optarg = qemu_opt_get(opts, "type");
2793 machine_class = machine_parse(optarg);
2796 if (!machine_class) {
2797 error_report("No machine specified, and there is no default");
2798 error_printf("Use -machine help to list supported machines\n");
2803 return machine_class;
2806 static int machine_set_property(void *opaque,
2807 const char *name, const char *value,
2810 Object *obj = OBJECT(opaque);
2811 Error *local_err = NULL;
2814 if (strcmp(name, "type") == 0) {
2818 qom_name = g_strdup(name);
2819 for (p = qom_name; *p; p++) {
2825 object_property_parse(obj, value, qom_name, &local_err);
2829 error_report_err(local_err);
2838 * Initial object creation happens before all other
2839 * QEMU data types are created. The majority of objects
2840 * can be created at this point. The rng-egd object
2841 * cannot be created here, as it depends on the chardev
2844 static bool object_create_initial(const char *type)
2846 if (g_str_equal(type, "rng-egd") ||
2847 g_str_has_prefix(type, "pr-manager-")) {
2851 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2852 if (g_str_equal(type, "cryptodev-vhost-user")) {
2858 * return false for concrete netfilters since
2859 * they depend on netdevs already existing
2861 if (g_str_equal(type, "filter-buffer") ||
2862 g_str_equal(type, "filter-dump") ||
2863 g_str_equal(type, "filter-mirror") ||
2864 g_str_equal(type, "filter-redirector") ||
2865 g_str_equal(type, "colo-compare") ||
2866 g_str_equal(type, "filter-rewriter") ||
2867 g_str_equal(type, "filter-replay")) {
2871 /* Memory allocation by backends needs to be done
2872 * after configure_accelerator() (due to the tcg_enabled()
2873 * checks at memory_region_init_*()).
2875 * Also, allocation of large amounts of memory may delay
2876 * chardev initialization for too long, and trigger timeouts
2877 * on software that waits for a monitor socket to be created
2880 if (g_str_has_prefix(type, "memory-backend-")) {
2889 * The remainder of object creation happens after the
2890 * creation of chardev, fsdev, net clients and device data types.
2892 static bool object_create_delayed(const char *type)
2894 return !object_create_initial(type);
2898 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2902 const char *mem_str;
2903 const char *maxmem_str, *slots_str;
2904 const ram_addr_t default_ram_size = mc->default_ram_size;
2905 QemuOpts *opts = qemu_find_opts_singleton("memory");
2908 loc_push_none(&loc);
2909 qemu_opts_loc_restore(opts);
2912 mem_str = qemu_opt_get(opts, "size");
2915 error_report("missing 'size' option value");
2919 sz = qemu_opt_get_size(opts, "size", ram_size);
2921 /* Fix up legacy suffix-less format */
2922 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2923 uint64_t overflow_check = sz;
2926 if ((sz >> 20) != overflow_check) {
2927 error_report("too large 'size' option value");
2933 /* backward compatibility behaviour for case "-m 0" */
2935 sz = default_ram_size;
2938 sz = QEMU_ALIGN_UP(sz, 8192);
2940 if (ram_size != sz) {
2941 error_report("ram size too large");
2945 /* store value for the future use */
2946 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2947 *maxram_size = ram_size;
2949 maxmem_str = qemu_opt_get(opts, "maxmem");
2950 slots_str = qemu_opt_get(opts, "slots");
2951 if (maxmem_str && slots_str) {
2954 sz = qemu_opt_get_size(opts, "maxmem", 0);
2955 slots = qemu_opt_get_number(opts, "slots", 0);
2956 if (sz < ram_size) {
2957 error_report("invalid value of -m option maxmem: "
2958 "maximum memory size (0x%" PRIx64 ") must be at least "
2959 "the initial memory size (0x" RAM_ADDR_FMT ")",
2962 } else if (sz > ram_size) {
2964 error_report("invalid value of -m option: maxmem was "
2965 "specified, but no hotplug slots were specified");
2969 error_report("invalid value of -m option maxmem: "
2970 "memory slots were specified but maximum memory size "
2971 "(0x%" PRIx64 ") is equal to the initial memory size "
2972 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2978 } else if ((!maxmem_str && slots_str) ||
2979 (maxmem_str && !slots_str)) {
2980 error_report("invalid -m option value: missing "
2981 "'%s' option", slots_str ? "maxmem" : "slots");
2988 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2992 g = g_malloc0(sizeof(*g));
2993 g->driver = qemu_opt_get(opts, "driver");
2994 g->property = qemu_opt_get(opts, "property");
2995 g->value = qemu_opt_get(opts, "value");
2996 g->user_provided = true;
2997 g->errp = &error_fatal;
2998 qdev_prop_register_global(g);
3002 static int qemu_read_default_config_file(void)
3006 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3007 if (ret < 0 && ret != -ENOENT) {
3014 static void user_register_global_props(void)
3016 qemu_opts_foreach(qemu_find_opts("global"),
3017 global_init_func, NULL, NULL);
3021 * Note: we should see that these properties are actually having a
3022 * priority: accel < machine < user. This means e.g. when user
3023 * specifies something in "-global", it'll always be used with highest
3024 * priority than either machine/accelerator compat properties.
3026 static void register_global_properties(MachineState *ms)
3028 accel_register_compat_props(ms->accelerator);
3029 machine_register_compat_props(ms);
3030 user_register_global_props();
3033 int main(int argc, char **argv, char **envp)
3036 int snapshot, linux_boot;
3037 const char *initrd_filename;
3038 const char *kernel_filename, *kernel_cmdline;
3039 const char *boot_order = NULL;
3040 const char *boot_once = NULL;
3042 QemuOpts *opts, *machine_opts;
3043 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3044 QemuOptsList *olist;
3047 const char *loadvm = NULL;
3048 MachineClass *machine_class;
3049 const char *cpu_model;
3050 const char *vga_model = NULL;
3051 const char *qtest_chrdev = NULL;
3052 const char *qtest_log = NULL;
3053 const char *pid_file = NULL;
3054 const char *incoming = NULL;
3055 bool userconfig = true;
3056 bool nographic = false;
3057 int display_remote = 0;
3058 const char *log_mask = NULL;
3059 const char *log_file = NULL;
3060 char *trace_file = NULL;
3061 ram_addr_t maxram_size;
3062 uint64_t ram_slots = 0;
3063 FILE *vmstate_dump_file = NULL;
3064 Error *main_loop_err = NULL;
3066 bool list_data_dirs = false;
3068 typedef struct BlockdevOptions_queue {
3069 BlockdevOptions *bdo;
3071 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3072 } BlockdevOptions_queue;
3073 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3074 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3076 module_call_init(MODULE_INIT_TRACE);
3078 qemu_init_cpu_list();
3079 qemu_init_cpu_loop();
3081 qemu_mutex_lock_iothread();
3083 atexit(qemu_run_exit_notifiers);
3084 error_set_progname(argv[0]);
3085 qemu_init_exec_dir(argv[0]);
3087 module_call_init(MODULE_INIT_QOM);
3089 qemu_add_opts(&qemu_drive_opts);
3090 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3091 qemu_add_drive_opts(&qemu_common_drive_opts);
3092 qemu_add_drive_opts(&qemu_drive_opts);
3093 qemu_add_drive_opts(&bdrv_runtime_opts);
3094 qemu_add_opts(&qemu_chardev_opts);
3095 qemu_add_opts(&qemu_device_opts);
3096 qemu_add_opts(&qemu_netdev_opts);
3097 qemu_add_opts(&qemu_nic_opts);
3098 qemu_add_opts(&qemu_net_opts);
3099 qemu_add_opts(&qemu_rtc_opts);
3100 qemu_add_opts(&qemu_global_opts);
3101 qemu_add_opts(&qemu_mon_opts);
3102 qemu_add_opts(&qemu_trace_opts);
3103 qemu_add_opts(&qemu_option_rom_opts);
3104 qemu_add_opts(&qemu_machine_opts);
3105 qemu_add_opts(&qemu_accel_opts);
3106 qemu_add_opts(&qemu_mem_opts);
3107 qemu_add_opts(&qemu_smp_opts);
3108 qemu_add_opts(&qemu_boot_opts);
3109 qemu_add_opts(&qemu_sandbox_opts);
3110 qemu_add_opts(&qemu_add_fd_opts);
3111 qemu_add_opts(&qemu_object_opts);
3112 qemu_add_opts(&qemu_tpmdev_opts);
3113 qemu_add_opts(&qemu_realtime_opts);
3114 qemu_add_opts(&qemu_msg_opts);
3115 qemu_add_opts(&qemu_name_opts);
3116 qemu_add_opts(&qemu_numa_opts);
3117 qemu_add_opts(&qemu_icount_opts);
3118 qemu_add_opts(&qemu_semihosting_config_opts);
3119 qemu_add_opts(&qemu_fw_cfg_opts);
3120 module_call_init(MODULE_INIT_OPTS);
3123 postcopy_infrastructure_init();
3125 if (qcrypto_init(&err) < 0) {
3126 error_reportf_err(err, "cannot initialize crypto: ");
3129 rtc_clock = QEMU_CLOCK_HOST;
3131 QLIST_INIT (&vm_change_state_head);
3132 os_setup_early_signal_handling();
3139 bdrv_init_with_whitelist();
3143 /* first pass of option parsing */
3145 while (optind < argc) {
3146 if (argv[optind][0] != '-') {
3150 const QEMUOption *popt;
3152 popt = lookup_opt(argc, argv, &optarg, &optind);
3153 switch (popt->index) {
3154 case QEMU_OPTION_nodefconfig:
3155 case QEMU_OPTION_nouserconfig:
3163 if (qemu_read_default_config_file() < 0) {
3168 /* second pass of option parsing */
3173 if (argv[optind][0] != '-') {
3174 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3176 const QEMUOption *popt;
3178 popt = lookup_opt(argc, argv, &optarg, &optind);
3179 if (!(popt->arch_mask & arch_type)) {
3180 error_report("Option not supported for this target");
3183 switch(popt->index) {
3184 case QEMU_OPTION_no_kvm_irqchip: {
3185 olist = qemu_find_opts("machine");
3186 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3189 case QEMU_OPTION_cpu:
3190 /* hw initialization will check this */
3193 case QEMU_OPTION_hda:
3194 case QEMU_OPTION_hdb:
3195 case QEMU_OPTION_hdc:
3196 case QEMU_OPTION_hdd:
3197 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3200 case QEMU_OPTION_blockdev:
3203 BlockdevOptions_queue *bdo;
3205 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3207 error_report_err(err);
3211 bdo = g_new(BlockdevOptions_queue, 1);
3212 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3215 loc_save(&bdo->loc);
3216 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3219 case QEMU_OPTION_drive:
3220 if (drive_def(optarg) == NULL) {
3224 case QEMU_OPTION_set:
3225 if (qemu_set_option(optarg) != 0)
3228 case QEMU_OPTION_global:
3229 if (qemu_global_option(optarg) != 0)
3232 case QEMU_OPTION_mtdblock:
3233 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3235 case QEMU_OPTION_sd:
3236 drive_add(IF_SD, -1, optarg, SD_OPTS);
3238 case QEMU_OPTION_pflash:
3239 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3241 case QEMU_OPTION_snapshot:
3244 case QEMU_OPTION_numa:
3245 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3251 case QEMU_OPTION_display:
3252 parse_display(optarg);
3254 case QEMU_OPTION_nographic:
3255 olist = qemu_find_opts("machine");
3256 qemu_opts_parse_noisily(olist, "graphics=off", false);
3258 dpy.type = DISPLAY_TYPE_NONE;
3260 case QEMU_OPTION_curses:
3261 #ifdef CONFIG_CURSES
3262 dpy.type = DISPLAY_TYPE_CURSES;
3264 error_report("curses support is disabled");
3268 case QEMU_OPTION_portrait:
3269 graphic_rotate = 90;
3271 case QEMU_OPTION_rotate:
3272 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3273 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3274 graphic_rotate != 180 && graphic_rotate != 270) {
3275 error_report("only 90, 180, 270 deg rotation is available");
3279 case QEMU_OPTION_kernel:
3280 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3283 case QEMU_OPTION_initrd:
3284 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3287 case QEMU_OPTION_append:
3288 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3291 case QEMU_OPTION_dtb:
3292 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3295 case QEMU_OPTION_cdrom:
3296 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3298 case QEMU_OPTION_boot:
3299 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3305 case QEMU_OPTION_fda:
3306 case QEMU_OPTION_fdb:
3307 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3310 case QEMU_OPTION_no_fd_bootchk:
3313 case QEMU_OPTION_netdev:
3315 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3319 case QEMU_OPTION_nic:
3321 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3325 case QEMU_OPTION_net:
3327 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3331 #ifdef CONFIG_LIBISCSI
3332 case QEMU_OPTION_iscsi:
3333 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3341 case QEMU_OPTION_tftp:
3342 error_report("The -tftp option is deprecated. "
3343 "Please use '-netdev user,tftp=...' instead.");
3344 legacy_tftp_prefix = optarg;
3346 case QEMU_OPTION_bootp:
3347 error_report("The -bootp option is deprecated. "
3348 "Please use '-netdev user,bootfile=...' instead.");
3349 legacy_bootp_filename = optarg;
3351 case QEMU_OPTION_redir:
3352 error_report("The -redir option is deprecated. "
3353 "Please use '-netdev user,hostfwd=...' instead.");
3354 if (net_slirp_redir(optarg) < 0)
3358 case QEMU_OPTION_bt:
3359 add_device_config(DEV_BT, optarg);
3361 case QEMU_OPTION_audio_help:
3365 case QEMU_OPTION_soundhw:
3366 select_soundhw (optarg);
3371 case QEMU_OPTION_version:
3376 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3383 case QEMU_OPTION_tpmdev:
3384 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3389 case QEMU_OPTION_mempath:
3392 case QEMU_OPTION_mem_prealloc:
3401 case QEMU_OPTION_DFILTER:
3402 qemu_set_dfilter_ranges(optarg, &error_fatal);
3405 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3407 case QEMU_OPTION_gdb:
3408 add_device_config(DEV_GDB, optarg);
3411 if (is_help_option(optarg)) {
3412 list_data_dirs = true;
3414 qemu_add_data_dir(optarg);
3417 case QEMU_OPTION_bios:
3418 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3421 case QEMU_OPTION_singlestep:
3428 keyboard_layout = optarg;
3430 case QEMU_OPTION_localtime:
3432 warn_report("This option is deprecated, "
3433 "use '-rtc base=localtime' instead.");
3435 case QEMU_OPTION_vga:
3444 w = strtol(p, (char **)&p, 10);
3447 error_report("invalid resolution or depth");
3453 h = strtol(p, (char **)&p, 10);
3458 depth = strtol(p, (char **)&p, 10);
3459 if (depth != 8 && depth != 15 && depth != 16 &&
3460 depth != 24 && depth != 32)
3462 } else if (*p == '\0') {
3463 depth = graphic_depth;
3470 graphic_depth = depth;
3473 case QEMU_OPTION_echr:
3476 term_escape_char = strtol(optarg, &r, 0);
3478 printf("Bad argument to echr\n");
3481 case QEMU_OPTION_monitor:
3482 default_monitor = 0;
3483 if (strncmp(optarg, "none", 4)) {
3484 monitor_parse(optarg, "readline", false);
3487 case QEMU_OPTION_qmp:
3488 monitor_parse(optarg, "control", false);
3489 default_monitor = 0;
3491 case QEMU_OPTION_qmp_pretty:
3492 monitor_parse(optarg, "control", true);
3493 default_monitor = 0;
3495 case QEMU_OPTION_mon:
3496 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3501 default_monitor = 0;
3503 case QEMU_OPTION_chardev:
3504 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3510 case QEMU_OPTION_fsdev:
3511 olist = qemu_find_opts("fsdev");
3513 error_report("fsdev support is disabled");
3516 opts = qemu_opts_parse_noisily(olist, optarg, true);
3521 case QEMU_OPTION_virtfs: {
3524 const char *writeout, *sock_fd, *socket, *path, *security_model;
3526 olist = qemu_find_opts("virtfs");
3528 error_report("virtfs support is disabled");
3531 opts = qemu_opts_parse_noisily(olist, optarg, true);
3536 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3537 qemu_opt_get(opts, "mount_tag") == NULL) {
3538 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3541 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3542 qemu_opts_id(opts) ?:
3543 qemu_opt_get(opts, "mount_tag"),
3546 error_report("duplicate or invalid fsdev id: %s",
3547 qemu_opt_get(opts, "mount_tag"));
3551 writeout = qemu_opt_get(opts, "writeout");
3553 #ifdef CONFIG_SYNC_FILE_RANGE
3554 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3556 error_report("writeout=immediate not supported "
3557 "on this platform");
3561 qemu_opt_set(fsdev, "fsdriver",
3562 qemu_opt_get(opts, "fsdriver"), &error_abort);
3563 path = qemu_opt_get(opts, "path");
3565 qemu_opt_set(fsdev, "path", path, &error_abort);
3567 security_model = qemu_opt_get(opts, "security_model");
3568 if (security_model) {
3569 qemu_opt_set(fsdev, "security_model", security_model,
3572 socket = qemu_opt_get(opts, "socket");
3574 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3576 sock_fd = qemu_opt_get(opts, "sock_fd");
3578 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3581 qemu_opt_set_bool(fsdev, "readonly",
3582 qemu_opt_get_bool(opts, "readonly", 0),
3584 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3586 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3587 qemu_opt_set(device, "fsdev",
3588 qemu_opts_id(fsdev), &error_abort);
3589 qemu_opt_set(device, "mount_tag",
3590 qemu_opt_get(opts, "mount_tag"), &error_abort);
3593 case QEMU_OPTION_virtfs_synth: {
3597 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3600 error_report("duplicate option: %s", "virtfs_synth");
3603 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3605 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3607 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3608 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3609 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3612 case QEMU_OPTION_serial:
3613 add_device_config(DEV_SERIAL, optarg);
3615 if (strncmp(optarg, "mon:", 4) == 0) {
3616 default_monitor = 0;
3619 case QEMU_OPTION_watchdog:
3621 error_report("only one watchdog option may be given");
3626 case QEMU_OPTION_watchdog_action:
3627 if (select_watchdog_action(optarg) == -1) {
3628 error_report("unknown -watchdog-action parameter");
3632 case QEMU_OPTION_virtiocon:
3633 add_device_config(DEV_VIRTCON, optarg);
3634 default_virtcon = 0;
3635 if (strncmp(optarg, "mon:", 4) == 0) {
3636 default_monitor = 0;
3639 case QEMU_OPTION_parallel:
3640 add_device_config(DEV_PARALLEL, optarg);
3641 default_parallel = 0;
3642 if (strncmp(optarg, "mon:", 4) == 0) {
3643 default_monitor = 0;
3646 case QEMU_OPTION_debugcon:
3647 add_device_config(DEV_DEBUGCON, optarg);
3649 case QEMU_OPTION_loadvm:
3652 case QEMU_OPTION_full_screen:
3653 dpy.has_full_screen = true;
3654 dpy.full_screen = true;
3656 case QEMU_OPTION_no_frame:
3657 g_printerr("The -no-frame switch is deprecated, and will be\n"
3658 "removed in a future release.\n");
3661 case QEMU_OPTION_alt_grab:
3664 case QEMU_OPTION_ctrl_grab:
3667 case QEMU_OPTION_no_quit:
3668 dpy.has_window_close = true;
3669 dpy.window_close = false;
3671 case QEMU_OPTION_sdl:
3673 dpy.type = DISPLAY_TYPE_SDL;
3676 error_report("SDL support is disabled");
3679 case QEMU_OPTION_pidfile:
3682 case QEMU_OPTION_win2k_hack:
3683 win2k_install_hack = 1;
3685 case QEMU_OPTION_rtc_td_hack: {
3686 static GlobalProperty slew_lost_ticks = {
3687 .driver = "mc146818rtc",
3688 .property = "lost_tick_policy",
3692 qdev_prop_register_global(&slew_lost_ticks);
3693 warn_report("This option is deprecated, "
3694 "use '-rtc driftfix=slew' instead.");
3697 case QEMU_OPTION_acpitable:
3698 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3703 acpi_table_add(opts, &error_fatal);
3705 case QEMU_OPTION_smbios:
3706 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3711 smbios_entry_add(opts, &error_fatal);
3713 case QEMU_OPTION_fwcfg:
3714 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3720 case QEMU_OPTION_enable_kvm:
3721 olist = qemu_find_opts("machine");
3722 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3724 case QEMU_OPTION_enable_hax:
3725 olist = qemu_find_opts("machine");
3726 qemu_opts_parse_noisily(olist, "accel=hax", false);
3729 case QEMU_OPTION_machine:
3730 olist = qemu_find_opts("machine");
3731 opts = qemu_opts_parse_noisily(olist, optarg, true);
3736 case QEMU_OPTION_no_kvm:
3737 olist = qemu_find_opts("machine");
3738 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3740 case QEMU_OPTION_no_kvm_pit_reinjection: {
3741 static GlobalProperty kvm_pit_lost_tick_policy = {
3742 .driver = "kvm-pit",
3743 .property = "lost_tick_policy",
3747 warn_report("deprecated, replaced by "
3748 "-global kvm-pit.lost_tick_policy=discard");
3749 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3752 case QEMU_OPTION_accel:
3753 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3755 optarg = qemu_opt_get(accel_opts, "accel");
3756 if (!optarg || is_help_option(optarg)) {
3757 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3760 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3761 false, &error_abort);
3762 qemu_opt_set(opts, "accel", optarg, &error_abort);
3764 case QEMU_OPTION_usb:
3765 olist = qemu_find_opts("machine");
3766 qemu_opts_parse_noisily(olist, "usb=on", false);
3768 case QEMU_OPTION_usbdevice:
3769 error_report("'-usbdevice' is deprecated, please use "
3770 "'-device usb-...' instead");
3771 olist = qemu_find_opts("machine");
3772 qemu_opts_parse_noisily(olist, "usb=on", false);
3773 add_device_config(DEV_USB, optarg);
3775 case QEMU_OPTION_device:
3776 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3781 case QEMU_OPTION_smp:
3782 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3787 case QEMU_OPTION_vnc:
3788 vnc_parse(optarg, &error_fatal);
3790 case QEMU_OPTION_no_acpi:
3793 case QEMU_OPTION_no_hpet:
3796 case QEMU_OPTION_balloon:
3797 if (balloon_parse(optarg) < 0) {
3798 error_report("unknown -balloon argument %s", optarg);
3802 case QEMU_OPTION_no_reboot:
3805 case QEMU_OPTION_no_shutdown:
3808 case QEMU_OPTION_show_cursor:
3811 case QEMU_OPTION_uuid:
3812 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3813 error_report("failed to parse UUID string: wrong format");
3816 qemu_uuid_set = true;
3818 case QEMU_OPTION_option_rom:
3819 if (nb_option_roms >= MAX_OPTION_ROMS) {
3820 error_report("too many option ROMs");
3823 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3828 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3829 option_rom[nb_option_roms].bootindex =
3830 qemu_opt_get_number(opts, "bootindex", -1);
3831 if (!option_rom[nb_option_roms].name) {
3832 error_report("Option ROM file is not specified");
3837 case QEMU_OPTION_semihosting:
3838 semihosting.enabled = true;
3839 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3841 case QEMU_OPTION_semihosting_config:
3842 semihosting.enabled = true;
3843 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3846 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3848 const char *target = qemu_opt_get(opts, "target");
3849 if (target != NULL) {
3850 if (strcmp("native", target) == 0) {
3851 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3852 } else if (strcmp("gdb", target) == 0) {
3853 semihosting.target = SEMIHOSTING_TARGET_GDB;
3854 } else if (strcmp("auto", target) == 0) {
3855 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3857 error_report("unsupported semihosting-config %s",
3862 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3864 /* Set semihosting argument count and vector */
3865 qemu_opt_foreach(opts, add_semihosting_arg,
3866 &semihosting, NULL);
3868 error_report("unsupported semihosting-config %s", optarg);
3872 case QEMU_OPTION_name:
3873 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3879 case QEMU_OPTION_prom_env:
3880 if (nb_prom_envs >= MAX_PROM_ENVS) {
3881 error_report("too many prom variables");
3884 prom_envs[nb_prom_envs] = optarg;
3887 case QEMU_OPTION_old_param:
3890 case QEMU_OPTION_clock:
3891 /* Clock options no longer exist. Keep this option for
3892 * backward compatibility.
3895 case QEMU_OPTION_startdate:
3896 warn_report("This option is deprecated, use '-rtc base=' instead.");
3897 configure_rtc_date_offset(optarg, 1);
3899 case QEMU_OPTION_rtc:
3900 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3905 configure_rtc(opts);
3907 case QEMU_OPTION_tb_size:
3909 error_report("TCG is disabled");
3912 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3913 error_report("Invalid argument to -tb-size");
3917 case QEMU_OPTION_icount:
3918 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3924 case QEMU_OPTION_incoming:
3926 runstate_set(RUN_STATE_INMIGRATE);
3930 case QEMU_OPTION_only_migratable:
3932 * TODO: we can remove this option one day, and we
3935 * "-global migration.only-migratable=true"
3937 qemu_global_option("migration.only-migratable=true");
3939 case QEMU_OPTION_nodefaults:
3942 case QEMU_OPTION_xen_domid:
3943 if (!(xen_available())) {
3944 error_report("Option not supported for this target");
3947 xen_domid = atoi(optarg);
3949 case QEMU_OPTION_xen_create:
3950 if (!(xen_available())) {
3951 error_report("Option not supported for this target");
3954 xen_mode = XEN_CREATE;
3956 case QEMU_OPTION_xen_attach:
3957 if (!(xen_available())) {
3958 error_report("Option not supported for this target");
3961 xen_mode = XEN_ATTACH;
3963 case QEMU_OPTION_xen_domid_restrict:
3964 if (!(xen_available())) {
3965 error_report("Option not supported for this target");
3968 xen_domid_restrict = true;
3970 case QEMU_OPTION_trace:
3972 trace_file = trace_opt_parse(optarg);
3974 case QEMU_OPTION_readconfig:
3976 int ret = qemu_read_config_file(optarg);
3978 error_report("read config %s: %s", optarg,
3984 case QEMU_OPTION_spice:
3985 olist = qemu_find_opts("spice");
3987 error_report("spice support is disabled");
3990 opts = qemu_opts_parse_noisily(olist, optarg, false);
3996 case QEMU_OPTION_writeconfig:
3999 if (strcmp(optarg, "-") == 0) {
4002 fp = fopen(optarg, "w");
4004 error_report("open %s: %s", optarg,
4009 qemu_config_write(fp);
4015 case QEMU_OPTION_qtest:
4016 qtest_chrdev = optarg;
4018 case QEMU_OPTION_qtest_log:
4021 case QEMU_OPTION_sandbox:
4022 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4028 case QEMU_OPTION_add_fd:
4030 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4036 error_report("File descriptor passing is disabled on this "
4041 case QEMU_OPTION_object:
4042 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4048 case QEMU_OPTION_realtime:
4049 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4054 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4056 case QEMU_OPTION_msg:
4057 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4062 configure_msg(opts);
4064 case QEMU_OPTION_dump_vmstate:
4065 if (vmstate_dump_file) {
4066 error_report("only one '-dump-vmstate' "
4067 "option may be given");
4070 vmstate_dump_file = fopen(optarg, "w");
4071 if (vmstate_dump_file == NULL) {
4072 error_report("open %s: %s", optarg, strerror(errno));
4077 os_parse_cmd_args(popt->index, optarg);
4082 * Clear error location left behind by the loop.
4083 * Best done right after the loop. Do not insert code here!
4087 replay_configure(icount_opts);
4089 machine_class = select_machine();
4091 set_memory_options(&ram_slots, &maxram_size, machine_class);
4094 rcu_disable_atfork();
4096 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4097 error_report("could not acquire pid file: %s", strerror(errno));
4101 if (qemu_init_main_loop(&main_loop_err)) {
4102 error_report_err(main_loop_err);
4106 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4107 parse_sandbox, NULL, NULL)) {
4111 if (qemu_opts_foreach(qemu_find_opts("name"),
4112 parse_name, NULL, NULL)) {
4117 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4118 parse_add_fd, NULL, NULL)) {
4122 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4123 cleanup_add_fd, NULL, NULL)) {
4128 current_machine = MACHINE(object_new(object_class_get_name(
4129 OBJECT_CLASS(machine_class))));
4130 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4133 object_property_add_child(object_get_root(), "machine",
4134 OBJECT(current_machine), &error_abort);
4136 if (machine_class->minimum_page_bits) {
4137 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4138 /* This would be a board error: specifying a minimum smaller than
4139 * a target's compile-time fixed setting.
4141 g_assert_not_reached();
4145 cpu_exec_init_all();
4147 if (machine_class->hw_version) {
4148 qemu_set_hw_version(machine_class->hw_version);
4151 if (cpu_model && is_help_option(cpu_model)) {
4152 list_cpus(stdout, &fprintf, cpu_model);
4156 if (!trace_init_backends()) {
4159 trace_init_file(trace_file);
4161 /* Open the logfile at this point and set the log mask if necessary.
4164 qemu_set_log_filename(log_file, &error_fatal);
4169 mask = qemu_str_to_log_mask(log_mask);
4171 qemu_print_log_usage(stdout);
4179 /* add configured firmware directories */
4180 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4181 for (i = 0; dirs[i] != NULL; i++) {
4182 qemu_add_data_dir(dirs[i]);
4186 /* try to find datadir relative to the executable path */
4187 dir = os_find_datadir();
4188 qemu_add_data_dir(dir);
4191 /* add the datadir specified when building */
4192 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4194 /* -L help lists the data directories and exits. */
4195 if (list_data_dirs) {
4196 for (i = 0; i < data_dir_idx; i++) {
4197 printf("%s\n", data_dir[i]);
4202 /* machine_class: default to UP */
4203 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4204 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4205 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4207 /* default to machine_class->default_cpus */
4208 smp_cpus = machine_class->default_cpus;
4209 max_cpus = machine_class->default_cpus;
4211 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4213 /* sanity-check smp_cpus and max_cpus against machine_class */
4214 if (smp_cpus < machine_class->min_cpus) {
4215 error_report("Invalid SMP CPUs %d. The min CPUs "
4216 "supported by machine '%s' is %d", smp_cpus,
4217 machine_class->name, machine_class->min_cpus);
4220 if (max_cpus > machine_class->max_cpus) {
4221 error_report("Invalid SMP CPUs %d. The max CPUs "
4222 "supported by machine '%s' is %d", max_cpus,
4223 machine_class->name, machine_class->max_cpus);
4228 * Get the default machine options from the machine if it is not already
4229 * specified either by the configuration file or by the command line.
4231 if (machine_class->default_machine_opts) {
4232 qemu_opts_set_defaults(qemu_find_opts("machine"),
4233 machine_class->default_machine_opts, 0);
4236 qemu_opts_foreach(qemu_find_opts("device"),
4237 default_driver_check, NULL, NULL);
4238 qemu_opts_foreach(qemu_find_opts("global"),
4239 default_driver_check, NULL, NULL);
4241 if (!vga_model && !default_vga) {
4242 vga_interface_type = VGA_DEVICE;
4244 if (!has_defaults || machine_class->no_serial) {
4247 if (!has_defaults || machine_class->no_parallel) {
4248 default_parallel = 0;
4250 if (!has_defaults || !machine_class->use_virtcon) {
4251 default_virtcon = 0;
4253 if (!has_defaults || !machine_class->use_sclp) {
4256 if (!has_defaults || machine_class->no_floppy) {
4259 if (!has_defaults || machine_class->no_cdrom) {
4262 if (!has_defaults || machine_class->no_sdcard) {
4265 if (!has_defaults) {
4266 default_monitor = 0;
4271 if (is_daemonized()) {
4272 /* According to documentation and historically, -nographic redirects
4273 * serial port, parallel port and monitor to stdio, which does not work
4274 * with -daemonize. We can redirect these to null instead, but since
4275 * -nographic is legacy, let's just error out.
4276 * We disallow -nographic only if all other ports are not redirected
4277 * explicitly, to not break existing legacy setups which uses
4278 * -nographic _and_ redirects all ports explicitly - this is valid
4279 * usage, -nographic is just a no-op in this case.
4282 && (default_parallel || default_serial
4283 || default_monitor || default_virtcon)) {
4284 error_report("-nographic cannot be used with -daemonize");
4287 #ifdef CONFIG_CURSES
4288 if (dpy.type == DISPLAY_TYPE_CURSES) {
4289 error_report("curses display cannot be used with -daemonize");
4296 if (default_parallel)
4297 add_device_config(DEV_PARALLEL, "null");
4298 if (default_serial && default_monitor) {
4299 add_device_config(DEV_SERIAL, "mon:stdio");
4300 } else if (default_virtcon && default_monitor) {
4301 add_device_config(DEV_VIRTCON, "mon:stdio");
4302 } else if (default_sclp && default_monitor) {
4303 add_device_config(DEV_SCLP, "mon:stdio");
4306 add_device_config(DEV_SERIAL, "stdio");
4307 if (default_virtcon)
4308 add_device_config(DEV_VIRTCON, "stdio");
4310 add_device_config(DEV_SCLP, "stdio");
4312 if (default_monitor)
4313 monitor_parse("stdio", "readline", false);
4317 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4318 if (default_parallel)
4319 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4320 if (default_monitor)
4321 monitor_parse("vc:80Cx24C", "readline", false);
4322 if (default_virtcon)
4323 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4325 add_device_config(DEV_SCLP, "vc:80Cx24C");
4329 #if defined(CONFIG_VNC)
4330 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4334 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4335 if (!qemu_display_find_default(&dpy)) {
4336 dpy.type = DISPLAY_TYPE_NONE;
4337 #if defined(CONFIG_VNC)
4338 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4342 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4343 dpy.type = DISPLAY_TYPE_NONE;
4346 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4347 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4348 "for SDL, ignoring option");
4350 if (dpy.has_window_close &&
4351 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4352 error_report("-no-quit is only valid for GTK and SDL, "
4356 qemu_display_early_init(&dpy);
4357 qemu_console_early_init();
4359 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4360 #if defined(CONFIG_OPENGL)
4361 error_report("OpenGL is not supported by the display");
4363 error_report("OpenGL support is disabled");
4371 if (qemu_opts_foreach(qemu_find_opts("object"),
4372 user_creatable_add_opts_foreach,
4373 object_create_initial, NULL)) {
4377 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4378 chardev_init_func, NULL, NULL)) {
4382 #ifdef CONFIG_VIRTFS
4383 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4384 fsdev_init_func, NULL, NULL)) {
4389 if (qemu_opts_foreach(qemu_find_opts("device"),
4390 device_help_func, NULL, NULL)) {
4394 machine_opts = qemu_get_machine_opts();
4395 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4397 object_unref(OBJECT(current_machine));
4401 configure_accelerator(current_machine);
4404 * Register all the global properties, including accel properties,
4405 * machine properties, and user-specified ones.
4407 register_global_properties(current_machine);
4410 * Migration object can only be created after global properties
4411 * are applied correctly.
4413 migration_object_init();
4416 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4419 machine_opts = qemu_get_machine_opts();
4420 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4421 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4422 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4423 bios_name = qemu_opt_get(machine_opts, "firmware");
4425 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4427 boot_order = qemu_opt_get(opts, "order");
4429 validate_bootdevices(boot_order, &error_fatal);
4432 boot_once = qemu_opt_get(opts, "once");
4434 validate_bootdevices(boot_once, &error_fatal);
4437 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4438 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4442 boot_order = machine_class->default_boot_order;
4445 if (!kernel_cmdline) {
4446 kernel_cmdline = "";
4447 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4450 linux_boot = (kernel_filename != NULL);
4452 if (!linux_boot && *kernel_cmdline != '\0') {
4453 error_report("-append only allowed with -kernel option");
4457 if (!linux_boot && initrd_filename != NULL) {
4458 error_report("-initrd only allowed with -kernel option");
4462 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4463 /* fall back to the -kernel/-append */
4464 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4467 os_set_line_buffering();
4469 /* spice needs the timers to be initialized by this point */
4474 if (!tcg_enabled()) {
4475 error_report("-icount is not allowed with hardware virtualization");
4478 configure_icount(icount_opts, &error_abort);
4479 qemu_opts_del(icount_opts);
4482 if (tcg_enabled()) {
4483 qemu_tcg_configure(accel_opts, &error_fatal);
4487 QemuOptsList *net = qemu_find_opts("net");
4488 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4490 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4496 if (net_init_clients(&err) < 0) {
4497 error_report_err(err);
4501 if (qemu_opts_foreach(qemu_find_opts("object"),
4502 user_creatable_add_opts_foreach,
4503 object_create_delayed, NULL)) {
4507 if (tpm_init() < 0) {
4511 /* init the bluetooth world */
4512 if (foreach_device_config(DEV_BT, bt_parse))
4515 if (!xen_enabled()) {
4516 /* On 32-bit hosts, QEMU is limited by virtual address space */
4517 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4518 error_report("at most 2047 MB RAM can be simulated");
4525 dirty_bitmap_mig_init();
4527 /* If the currently selected machine wishes to override the units-per-bus
4528 * property of its default HBA interface type, do so now. */
4529 if (machine_class->units_per_default_bus) {
4530 override_max_devs(machine_class->block_default_type,
4531 machine_class->units_per_default_bus);
4534 /* open the virtual block devices */
4535 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4536 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4538 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4539 loc_push_restore(&bdo->loc);
4540 qmp_blockdev_add(bdo->bdo, &error_fatal);
4542 qapi_free_BlockdevOptions(bdo->bdo);
4545 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4546 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4549 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4550 &machine_class->block_default_type, NULL)) {
4554 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4556 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4557 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4560 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4561 * depends on configure_accelerator() above.
4563 monitor_init_globals();
4565 if (qemu_opts_foreach(qemu_find_opts("mon"),
4566 mon_init_func, NULL, NULL)) {
4570 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4572 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4574 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4576 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4579 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4582 /* If no default VGA is requested, the default is "none". */
4584 if (machine_class->default_display) {
4585 vga_model = machine_class->default_display;
4586 } else if (vga_interface_available(VGA_CIRRUS)) {
4587 vga_model = "cirrus";
4588 } else if (vga_interface_available(VGA_STD)) {
4593 select_vgahw(vga_model);
4597 i = select_watchdog(watchdog);
4599 exit (i == 1 ? 1 : 0);
4602 /* This checkpoint is required by replay to separate prior clock
4603 reading from the other reads, because timer polling functions query
4604 clock values from the log. */
4605 replay_checkpoint(CHECKPOINT_INIT);
4606 qdev_machine_init();
4608 current_machine->ram_size = ram_size;
4609 current_machine->maxram_size = maxram_size;
4610 current_machine->ram_slots = ram_slots;
4611 current_machine->boot_order = boot_order;
4613 /* parse features once if machine provides default cpu_type */
4614 current_machine->cpu_type = machine_class->default_cpu_type;
4616 current_machine->cpu_type = parse_cpu_model(cpu_model);
4618 parse_numa_opts(current_machine);
4620 machine_run_board_init(current_machine);
4626 if (hax_enabled()) {
4630 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4631 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4635 /* init USB devices */
4636 if (machine_usb(current_machine)) {
4637 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4641 /* Check if IGD GFX passthrough. */
4644 /* init generic devices */
4645 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4646 if (qemu_opts_foreach(qemu_find_opts("device"),
4647 device_init_func, NULL, NULL)) {
4651 cpu_synchronize_all_post_init();
4653 rom_reset_order_override();
4655 /* Did we create any drives that we failed to create a device for? */
4656 drive_check_orphaned();
4658 /* Don't warn about the default network setup that you get if
4659 * no command line -net or -netdev options are specified. There
4660 * are two cases that we would otherwise complain about:
4661 * (1) board doesn't support a NIC but the implicit "-net nic"
4663 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4664 * sets up a nic that isn't connected to anything.
4667 net_check_clients();
4672 qemu_boot_set(boot_once, &error_fatal);
4673 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4676 /* init local displays */
4677 ds = init_displaystate();
4678 qemu_display_init(ds, &dpy);
4680 /* must be after terminal init, SDL library changes signal handlers */
4681 os_setup_signal_handling();
4683 /* init remote displays */
4685 qemu_opts_foreach(qemu_find_opts("vnc"),
4686 vnc_init_func, NULL, NULL);
4690 qemu_spice_display_init();
4693 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4697 qdev_machine_creation_done();
4699 /* TODO: once all bus devices are qdevified, this should be done
4700 * when bus is created by qdev.c */
4701 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4702 qemu_run_machine_init_done_notifiers();
4704 if (rom_check_and_register_reset() != 0) {
4705 error_report("rom check and register reset failed");
4711 /* This checkpoint is required by replay to separate prior clock
4712 reading from the other reads, because timer polling functions query
4713 clock values from the log. */
4714 replay_checkpoint(CHECKPOINT_RESET);
4715 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4716 register_global_state();
4717 if (replay_mode != REPLAY_MODE_NONE) {
4718 replay_vmstate_init();
4719 } else if (loadvm) {
4720 Error *local_err = NULL;
4721 if (load_snapshot(loadvm, &local_err) < 0) {
4722 error_report_err(local_err);
4727 qdev_prop_check_globals();
4728 if (vmstate_dump_file) {
4730 dump_vmstate_json_to_file(vmstate_dump_file);
4735 Error *local_err = NULL;
4736 qemu_start_incoming_migration(incoming, &local_err);
4738 error_reportf_err(local_err, "-incoming %s: ", incoming);
4741 } else if (autostart) {
4745 accel_setup_post(current_machine);
4750 gdbserver_cleanup();
4752 /* No more vcpu or device emulation activity beyond this point */
4759 /* vhost-user must be cleaned up before chardevs. */
4765 user_creatable_cleanup();
4766 migration_object_finalize();
4767 /* TODO: unref root container, check all devices are ok */