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
24 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
31 #include "sysemu/seccomp.h"
32 #include "sys/prctl.h"
36 #if defined(__APPLE__) || defined(main)
38 int qemu_main(int argc, char **argv, char **envp);
39 int main(int argc, char **argv)
41 return qemu_main(argc, argv, NULL);
44 #define main qemu_main
46 #endif /* CONFIG_SDL */
50 #define main qemu_main
51 #endif /* CONFIG_COCOA */
54 #include "qemu/error-report.h"
55 #include "qemu/sockets.h"
57 #include "hw/boards.h"
58 #include "sysemu/accel.h"
60 #include "hw/isa/isa.h"
61 #include "hw/scsi/scsi.h"
62 #include "hw/display/vga.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/smbios/smbios.h"
66 #include "hw/acpi/acpi.h"
67 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "chardev/char.h"
82 #include "qemu/bitmap.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qapi-visit.h"
99 #include "qapi/qmp/qjson.h"
100 #include "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qmp-commands.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 "qapi-event.h"
125 #include "exec/semihost.h"
126 #include "crypto/init.h"
127 #include "sysemu/replay.h"
128 #include "qapi/qmp/qerror.h"
129 #include "sysemu/iothread.h"
131 #define MAX_VIRTIO_CONSOLES 1
132 #define MAX_SCLP_CONSOLES 1
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int request_opengl = -1;
140 const char* keyboard_layout = NULL;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
146 NICInfo nd_table[MAX_NICS];
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static int full_screen = 0;
155 static bool grab_on_hover;
156 Chardev *serial_hds[MAX_SERIAL_PORTS];
157 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
158 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
159 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
160 int win2k_install_hack = 0;
163 unsigned int max_cpus;
166 int acpi_enabled = 1;
169 static int no_reboot;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
177 const char *qemu_name;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
188 int icount_align_option;
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_sclp = 1;
212 static int default_monitor = 1;
213 static int default_floppy = 1;
214 static int default_cdrom = 1;
215 static int default_sdcard = 1;
216 static int default_vga = 1;
217 static int default_net = 1;
223 { .driver = "isa-serial", .flag = &default_serial },
224 { .driver = "isa-parallel", .flag = &default_parallel },
225 { .driver = "isa-fdc", .flag = &default_floppy },
226 { .driver = "floppy", .flag = &default_floppy },
227 { .driver = "ide-cd", .flag = &default_cdrom },
228 { .driver = "ide-hd", .flag = &default_cdrom },
229 { .driver = "ide-drive", .flag = &default_cdrom },
230 { .driver = "scsi-cd", .flag = &default_cdrom },
231 { .driver = "scsi-hd", .flag = &default_cdrom },
232 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
233 { .driver = "virtio-serial", .flag = &default_virtcon },
234 { .driver = "VGA", .flag = &default_vga },
235 { .driver = "isa-vga", .flag = &default_vga },
236 { .driver = "cirrus-vga", .flag = &default_vga },
237 { .driver = "isa-cirrus-vga", .flag = &default_vga },
238 { .driver = "vmware-svga", .flag = &default_vga },
239 { .driver = "qxl-vga", .flag = &default_vga },
240 { .driver = "virtio-vga", .flag = &default_vga },
243 static QemuOptsList qemu_rtc_opts = {
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
249 .type = QEMU_OPT_STRING,
252 .type = QEMU_OPT_STRING,
255 .type = QEMU_OPT_STRING,
257 { /* end of list */ }
261 static QemuOptsList qemu_sandbox_opts = {
263 .implied_opt_name = "enable",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
268 .type = QEMU_OPT_BOOL,
272 .type = QEMU_OPT_STRING,
275 .name = "elevateprivileges",
276 .type = QEMU_OPT_STRING,
280 .type = QEMU_OPT_STRING,
283 .name = "resourcecontrol",
284 .type = QEMU_OPT_STRING,
286 { /* end of list */ }
290 static QemuOptsList qemu_option_rom_opts = {
291 .name = "option-rom",
292 .implied_opt_name = "romfile",
293 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
297 .type = QEMU_OPT_NUMBER,
300 .type = QEMU_OPT_STRING,
302 { /* end of list */ }
306 static QemuOptsList qemu_machine_opts = {
308 .implied_opt_name = "type",
310 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
313 * no elements => accept any
314 * sanity checking will happen later
315 * when setting machine properties
321 static QemuOptsList qemu_accel_opts = {
323 .implied_opt_name = "accel",
324 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
329 .type = QEMU_OPT_STRING,
330 .help = "Select the type of accelerator",
334 .type = QEMU_OPT_STRING,
335 .help = "Enable/disable multi-threaded TCG",
337 { /* end of list */ }
341 static QemuOptsList qemu_boot_opts = {
343 .implied_opt_name = "order",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
349 .type = QEMU_OPT_STRING,
352 .type = QEMU_OPT_STRING,
355 .type = QEMU_OPT_BOOL,
358 .type = QEMU_OPT_STRING,
360 .name = "splash-time",
361 .type = QEMU_OPT_STRING,
363 .name = "reboot-timeout",
364 .type = QEMU_OPT_STRING,
367 .type = QEMU_OPT_BOOL,
373 static QemuOptsList qemu_add_fd_opts = {
375 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
379 .type = QEMU_OPT_NUMBER,
380 .help = "file descriptor of which a duplicate is added to fd set",
383 .type = QEMU_OPT_NUMBER,
384 .help = "ID of the fd set to add fd to",
387 .type = QEMU_OPT_STRING,
388 .help = "free-form string used to describe fd",
390 { /* end of list */ }
394 static QemuOptsList qemu_object_opts = {
396 .implied_opt_name = "qom-type",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
403 static QemuOptsList qemu_tpmdev_opts = {
405 .implied_opt_name = "type",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
408 /* options are defined in the TPM backends */
409 { /* end of list */ }
413 static QemuOptsList qemu_realtime_opts = {
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
419 .type = QEMU_OPT_BOOL,
421 { /* end of list */ }
425 static QemuOptsList qemu_msg_opts = {
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
431 .type = QEMU_OPT_BOOL,
433 { /* end of list */ }
437 static QemuOptsList qemu_name_opts = {
439 .implied_opt_name = "guest",
441 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
445 .type = QEMU_OPT_STRING,
446 .help = "Sets the name of the guest.\n"
447 "This name will be displayed in the SDL window caption.\n"
448 "The name will also be used for the VNC server",
451 .type = QEMU_OPT_STRING,
452 .help = "Sets the name of the QEMU process, as shown in top etc",
454 .name = "debug-threads",
455 .type = QEMU_OPT_BOOL,
456 .help = "When enabled, name the individual threads; defaults off.\n"
457 "NOTE: The thread names are for debugging and not a\n"
460 { /* End of list */ }
464 static QemuOptsList qemu_mem_opts = {
466 .implied_opt_name = "size",
467 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
472 .type = QEMU_OPT_SIZE,
476 .type = QEMU_OPT_NUMBER,
480 .type = QEMU_OPT_SIZE,
482 { /* end of list */ }
486 static QemuOptsList qemu_icount_opts = {
488 .implied_opt_name = "shift",
490 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
494 .type = QEMU_OPT_STRING,
497 .type = QEMU_OPT_BOOL,
500 .type = QEMU_OPT_BOOL,
503 .type = QEMU_OPT_STRING,
506 .type = QEMU_OPT_STRING,
508 .name = "rrsnapshot",
509 .type = QEMU_OPT_STRING,
511 { /* end of list */ }
515 static QemuOptsList qemu_semihosting_config_opts = {
516 .name = "semihosting-config",
517 .implied_opt_name = "enable",
518 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
522 .type = QEMU_OPT_BOOL,
525 .type = QEMU_OPT_STRING,
528 .type = QEMU_OPT_STRING,
530 { /* end of list */ }
534 static QemuOptsList qemu_fw_cfg_opts = {
536 .implied_opt_name = "name",
537 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
541 .type = QEMU_OPT_STRING,
542 .help = "Sets the fw_cfg name of the blob to be inserted",
545 .type = QEMU_OPT_STRING,
546 .help = "Sets the name of the file from which\n"
547 "the fw_cfg blob will be loaded",
550 .type = QEMU_OPT_STRING,
551 .help = "Sets content of the blob to be inserted from a string",
553 { /* end of list */ }
558 * Get machine options
560 * Returns: machine options (never null).
562 QemuOpts *qemu_get_machine_opts(void)
564 return qemu_find_opts_singleton("machine");
567 const char *qemu_get_vm_name(void)
572 static void res_free(void)
574 g_free(boot_splash_filedata);
575 boot_splash_filedata = NULL;
578 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
580 const char *driver = qemu_opt_get(opts, "driver");
585 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
586 if (strcmp(default_list[i].driver, driver) != 0)
588 *(default_list[i].flag) = 0;
593 /***********************************************************/
596 static RunState current_run_state = RUN_STATE_PRELAUNCH;
598 /* We use RUN_STATE__MAX but any invalid value will do */
599 static RunState vmstop_requested = RUN_STATE__MAX;
600 static QemuMutex vmstop_lock;
605 } RunStateTransition;
607 static const RunStateTransition runstate_transitions_def[] = {
609 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
610 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
614 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
617 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
618 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
620 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
621 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
623 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
624 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
630 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
631 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
632 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
634 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
635 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
637 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
638 { RUN_STATE_PAUSED, RUN_STATE_COLO},
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
645 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
654 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
655 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
657 { RUN_STATE_COLO, RUN_STATE_RUNNING },
659 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
660 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
661 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
662 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
663 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
664 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
665 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
666 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
667 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
668 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
669 { RUN_STATE_RUNNING, RUN_STATE_COLO},
671 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
674 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
678 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
679 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
680 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
684 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
685 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
687 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
693 { RUN_STATE__MAX, RUN_STATE__MAX },
696 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
698 bool runstate_check(RunState state)
700 return current_run_state == state;
703 bool runstate_store(char *str, size_t size)
705 const char *state = RunState_str(current_run_state);
706 size_t len = strlen(state) + 1;
711 memcpy(str, state, len);
715 static void runstate_init(void)
717 const RunStateTransition *p;
719 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
720 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
721 runstate_valid_transitions[p->from][p->to] = true;
724 qemu_mutex_init(&vmstop_lock);
727 /* This function will abort() on invalid state transitions */
728 void runstate_set(RunState new_state)
730 assert(new_state < RUN_STATE__MAX);
732 if (current_run_state == new_state) {
736 if (!runstate_valid_transitions[current_run_state][new_state]) {
737 error_report("invalid runstate transition: '%s' -> '%s'",
738 RunState_str(current_run_state),
739 RunState_str(new_state));
742 trace_runstate_set(new_state);
743 current_run_state = new_state;
746 int runstate_is_running(void)
748 return runstate_check(RUN_STATE_RUNNING);
751 bool runstate_needs_reset(void)
753 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
754 runstate_check(RUN_STATE_SHUTDOWN);
757 StatusInfo *qmp_query_status(Error **errp)
759 StatusInfo *info = g_malloc0(sizeof(*info));
761 info->running = runstate_is_running();
762 info->singlestep = singlestep;
763 info->status = current_run_state;
768 bool qemu_vmstop_requested(RunState *r)
770 qemu_mutex_lock(&vmstop_lock);
771 *r = vmstop_requested;
772 vmstop_requested = RUN_STATE__MAX;
773 qemu_mutex_unlock(&vmstop_lock);
774 return *r < RUN_STATE__MAX;
777 void qemu_system_vmstop_request_prepare(void)
779 qemu_mutex_lock(&vmstop_lock);
782 void qemu_system_vmstop_request(RunState state)
784 vmstop_requested = state;
785 qemu_mutex_unlock(&vmstop_lock);
789 /***********************************************************/
790 /* real time host monotonic timer */
792 static time_t qemu_time(void)
794 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
797 /***********************************************************/
798 /* host time/date access */
799 void qemu_get_timedate(struct tm *tm, int offset)
801 time_t ti = qemu_time();
804 if (rtc_date_offset == -1) {
808 localtime_r(&ti, tm);
810 ti -= rtc_date_offset;
815 int qemu_timedate_diff(struct tm *tm)
819 if (rtc_date_offset == -1)
821 seconds = mktimegm(tm);
824 tmp.tm_isdst = -1; /* use timezone to figure it out */
825 seconds = mktime(&tmp);
828 seconds = mktimegm(tm) + rtc_date_offset;
830 return seconds - qemu_time();
833 static void configure_rtc_date_offset(const char *startdate, int legacy)
835 time_t rtc_start_date;
838 if (!strcmp(startdate, "now") && legacy) {
839 rtc_date_offset = -1;
841 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
849 } else if (sscanf(startdate, "%d-%d-%d",
861 rtc_start_date = mktimegm(&tm);
862 if (rtc_start_date == -1) {
864 error_report("invalid date format");
865 error_printf("valid formats: "
866 "'2006-06-17T16:01:21' or '2006-06-17'\n");
869 rtc_date_offset = qemu_time() - rtc_start_date;
873 static void configure_rtc(QemuOpts *opts)
877 value = qemu_opt_get(opts, "base");
879 if (!strcmp(value, "utc")) {
881 } else if (!strcmp(value, "localtime")) {
882 Error *blocker = NULL;
884 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
885 "-rtc base=localtime");
886 replay_add_blocker(blocker);
888 configure_rtc_date_offset(value, 0);
891 value = qemu_opt_get(opts, "clock");
893 if (!strcmp(value, "host")) {
894 rtc_clock = QEMU_CLOCK_HOST;
895 } else if (!strcmp(value, "rt")) {
896 rtc_clock = QEMU_CLOCK_REALTIME;
897 } else if (!strcmp(value, "vm")) {
898 rtc_clock = QEMU_CLOCK_VIRTUAL;
900 error_report("invalid option value '%s'", value);
904 value = qemu_opt_get(opts, "driftfix");
906 if (!strcmp(value, "slew")) {
907 static GlobalProperty slew_lost_ticks = {
908 .driver = "mc146818rtc",
909 .property = "lost_tick_policy",
913 qdev_prop_register_global(&slew_lost_ticks);
914 } else if (!strcmp(value, "none")) {
915 /* discard is default */
917 error_report("invalid option value '%s'", value);
923 /***********************************************************/
924 /* Bluetooth support */
927 static struct HCIInfo *hci_table[MAX_NICS];
929 struct HCIInfo *qemu_next_hci(void)
931 if (cur_hci == nb_hcis)
934 return hci_table[cur_hci++];
937 static int bt_hci_parse(const char *str)
942 if (nb_hcis >= MAX_NICS) {
943 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
956 bdaddr.b[5] = 0x56 + nb_hcis;
957 hci->bdaddr_set(hci, bdaddr.b);
959 hci_table[nb_hcis++] = hci;
964 static void bt_vhci_add(int vlan_id)
966 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
969 warn_report("adding a VHCI to an empty scatternet %i",
972 bt_vhci_init(bt_new_hci(vlan));
975 static struct bt_device_s *bt_device_add(const char *opt)
977 struct bt_scatternet_s *vlan;
979 char *endp = strstr(opt, ",vlan=");
980 int len = (endp ? endp - opt : strlen(opt)) + 1;
983 pstrcpy(devname, MIN(sizeof(devname), len), opt);
986 vlan_id = strtol(endp + 6, &endp, 0);
988 error_report("unrecognised bluetooth vlan Id");
993 vlan = qemu_find_bt_vlan(vlan_id);
996 warn_report("adding a slave device to an empty scatternet %i",
999 if (!strcmp(devname, "keyboard"))
1000 return bt_keyboard_init(vlan);
1002 error_report("unsupported bluetooth device '%s'", devname);
1006 static int bt_parse(const char *opt)
1008 const char *endp, *p;
1011 if (strstart(opt, "hci", &endp)) {
1012 if (!*endp || *endp == ',') {
1014 if (!strstart(endp, ",vlan=", 0))
1017 return bt_hci_parse(opt);
1019 } else if (strstart(opt, "vhci", &endp)) {
1020 if (!*endp || *endp == ',') {
1022 if (strstart(endp, ",vlan=", &p)) {
1023 vlan = strtol(p, (char **) &endp, 0);
1025 error_report("bad scatternet '%s'", p);
1029 error_report("bad parameter '%s'", endp + 1);
1038 } else if (strstart(opt, "device:", &endp))
1039 return !bt_device_add(endp);
1041 error_report("bad bluetooth parameter '%s'", opt);
1045 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1047 if (qemu_opt_get_bool(opts, "enable", false)) {
1048 #ifdef CONFIG_SECCOMP
1049 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1050 | QEMU_SECCOMP_SET_OBSOLETE;
1051 const char *value = NULL;
1053 value = qemu_opt_get(opts, "obsolete");
1055 if (g_str_equal(value, "allow")) {
1056 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1057 } else if (g_str_equal(value, "deny")) {
1058 /* this is the default option, this if is here
1059 * to provide a little bit of consistency for
1060 * the command line */
1062 error_report("invalid argument for obsolete");
1067 value = qemu_opt_get(opts, "elevateprivileges");
1069 if (g_str_equal(value, "deny")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1071 } else if (g_str_equal(value, "children")) {
1072 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1074 /* calling prctl directly because we're
1075 * not sure if host has CAP_SYS_ADMIN set*/
1076 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1077 error_report("failed to set no_new_privs "
1081 } else if (g_str_equal(value, "allow")) {
1084 error_report("invalid argument for elevateprivileges");
1089 value = qemu_opt_get(opts, "spawn");
1091 if (g_str_equal(value, "deny")) {
1092 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1093 } else if (g_str_equal(value, "allow")) {
1096 error_report("invalid argument for spawn");
1101 value = qemu_opt_get(opts, "resourcecontrol");
1103 if (g_str_equal(value, "deny")) {
1104 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1105 } else if (g_str_equal(value, "allow")) {
1108 error_report("invalid argument for resourcecontrol");
1113 if (seccomp_start(seccomp_opts) < 0) {
1114 error_report("failed to install seccomp syscall filter "
1119 error_report("seccomp support is disabled");
1127 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1129 const char *proc_name;
1131 if (qemu_opt_get(opts, "debug-threads")) {
1132 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1134 qemu_name = qemu_opt_get(opts, "guest");
1136 proc_name = qemu_opt_get(opts, "process");
1138 os_set_proc_name(proc_name);
1144 bool defaults_enabled(void)
1146 return has_defaults;
1150 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1152 int fd, dupfd, flags;
1154 const char *fd_opaque = NULL;
1157 fd = qemu_opt_get_number(opts, "fd", -1);
1158 fdset_id = qemu_opt_get_number(opts, "set", -1);
1159 fd_opaque = qemu_opt_get(opts, "opaque");
1162 error_report("fd option is required and must be non-negative");
1166 if (fd <= STDERR_FILENO) {
1167 error_report("fd cannot be a standard I/O stream");
1172 * All fds inherited across exec() necessarily have FD_CLOEXEC
1173 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1175 flags = fcntl(fd, F_GETFD);
1176 if (flags == -1 || (flags & FD_CLOEXEC)) {
1177 error_report("fd is not valid or already in use");
1182 error_report("set option is required and must be non-negative");
1186 #ifdef F_DUPFD_CLOEXEC
1187 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1191 qemu_set_cloexec(dupfd);
1195 error_report("error duplicating fd: %s", strerror(errno));
1199 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1200 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1207 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1211 fd = qemu_opt_get_number(opts, "fd", -1);
1218 /***********************************************************/
1219 /* QEMU Block devices */
1221 #define HD_OPTS "media=disk"
1222 #define CDROM_OPTS "media=cdrom"
1224 #define PFLASH_OPTS ""
1228 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1230 BlockInterfaceType *block_default_type = opaque;
1232 return drive_new(opts, *block_default_type) == NULL;
1235 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1237 if (qemu_opt_get(opts, "snapshot") == NULL) {
1238 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1243 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1244 int index, const char *optstr)
1249 if (!enable || drive_get_by_index(type, index)) {
1253 opts = drive_add(type, index, NULL, optstr);
1255 drive_enable_snapshot(NULL, opts, NULL);
1258 dinfo = drive_new(opts, type);
1262 dinfo->is_default = true;
1266 static QemuOptsList qemu_smp_opts = {
1268 .implied_opt_name = "cpus",
1269 .merge_lists = true,
1270 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1274 .type = QEMU_OPT_NUMBER,
1277 .type = QEMU_OPT_NUMBER,
1280 .type = QEMU_OPT_NUMBER,
1283 .type = QEMU_OPT_NUMBER,
1286 .type = QEMU_OPT_NUMBER,
1288 { /*End of list */ }
1292 static void smp_parse(QemuOpts *opts)
1295 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1296 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1297 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1298 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1300 /* compute missing values, prefer sockets over cores over threads */
1301 if (cpus == 0 || sockets == 0) {
1302 sockets = sockets > 0 ? sockets : 1;
1303 cores = cores > 0 ? cores : 1;
1304 threads = threads > 0 ? threads : 1;
1306 cpus = cores * threads * sockets;
1308 } else if (cores == 0) {
1309 threads = threads > 0 ? threads : 1;
1310 cores = cpus / (sockets * threads);
1311 cores = cores > 0 ? cores : 1;
1312 } else if (threads == 0) {
1313 threads = cpus / (cores * sockets);
1314 threads = threads > 0 ? threads : 1;
1315 } else if (sockets * cores * threads < cpus) {
1316 error_report("cpu topology: "
1317 "sockets (%u) * cores (%u) * threads (%u) < "
1319 sockets, cores, threads, cpus);
1323 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1325 if (max_cpus < cpus) {
1326 error_report("maxcpus must be equal to or greater than smp");
1330 if (sockets * cores * threads > max_cpus) {
1331 error_report("cpu topology: "
1332 "sockets (%u) * cores (%u) * threads (%u) > "
1334 sockets, cores, threads, max_cpus);
1340 smp_threads = threads;
1344 Error *blocker = NULL;
1345 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1346 replay_add_blocker(blocker);
1350 static void realtime_init(void)
1353 if (os_mlock() < 0) {
1354 error_report("locking memory failed");
1361 static void configure_msg(QemuOpts *opts)
1363 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1366 /***********************************************************/
1369 typedef struct SemihostingConfig {
1371 SemihostingTarget target;
1374 const char *cmdline; /* concatenated argv */
1375 } SemihostingConfig;
1377 static SemihostingConfig semihosting;
1379 bool semihosting_enabled(void)
1381 return semihosting.enabled;
1384 SemihostingTarget semihosting_get_target(void)
1386 return semihosting.target;
1389 const char *semihosting_get_arg(int i)
1391 if (i >= semihosting.argc) {
1394 return semihosting.argv[i];
1397 int semihosting_get_argc(void)
1399 return semihosting.argc;
1402 const char *semihosting_get_cmdline(void)
1404 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1405 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1407 return semihosting.cmdline;
1410 static int add_semihosting_arg(void *opaque,
1411 const char *name, const char *val,
1414 SemihostingConfig *s = opaque;
1415 if (strcmp(name, "arg") == 0) {
1417 /* one extra element as g_strjoinv() expects NULL-terminated array */
1418 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1419 s->argv[s->argc - 1] = val;
1420 s->argv[s->argc] = NULL;
1425 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1426 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1431 add_semihosting_arg(&semihosting, "arg", file, NULL);
1433 /* split -append and initialize argv[1..n] */
1434 cmd_token = strtok(g_strdup(cmd), " ");
1436 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1437 cmd_token = strtok(NULL, " ");
1441 /* Now we still need this for compatibility with XEN. */
1442 bool has_igd_gfx_passthru;
1443 static void igd_gfx_passthru(void)
1445 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1448 /***********************************************************/
1451 static int usb_device_add(const char *devname)
1453 USBDevice *dev = NULL;
1454 #ifndef CONFIG_LINUX
1458 if (!machine_usb(current_machine)) {
1462 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1463 dev = usbdevice_create(devname);
1467 /* the other ones */
1468 #ifndef CONFIG_LINUX
1469 /* only the linux version is qdev-ified, usb-bsd still needs this */
1470 if (strstart(devname, "host:", &p)) {
1471 dev = usb_host_device_open(usb_bus_find(-1), p);
1481 static int usb_parse(const char *cmdline)
1484 r = usb_device_add(cmdline);
1486 error_report("could not add USB device '%s'", cmdline);
1491 /***********************************************************/
1492 /* machine registration */
1494 MachineState *current_machine;
1496 static MachineClass *find_machine(const char *name)
1498 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1499 MachineClass *mc = NULL;
1501 for (el = machines; el; el = el->next) {
1502 MachineClass *temp = el->data;
1504 if (!strcmp(temp->name, name)) {
1509 !strcmp(temp->alias, name)) {
1515 g_slist_free(machines);
1519 MachineClass *find_default_machine(void)
1521 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1522 MachineClass *mc = NULL;
1524 for (el = machines; el; el = el->next) {
1525 MachineClass *temp = el->data;
1527 if (temp->is_default) {
1533 g_slist_free(machines);
1537 MachineInfoList *qmp_query_machines(Error **errp)
1539 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1540 MachineInfoList *mach_list = NULL;
1542 for (el = machines; el; el = el->next) {
1543 MachineClass *mc = el->data;
1544 MachineInfoList *entry;
1547 info = g_malloc0(sizeof(*info));
1548 if (mc->is_default) {
1549 info->has_is_default = true;
1550 info->is_default = true;
1554 info->has_alias = true;
1555 info->alias = g_strdup(mc->alias);
1558 info->name = g_strdup(mc->name);
1559 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1560 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1562 entry = g_malloc0(sizeof(*entry));
1563 entry->value = info;
1564 entry->next = mach_list;
1568 g_slist_free(machines);
1572 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1574 ObjectProperty *prop;
1575 ObjectPropertyIterator iter;
1577 if (!qemu_opt_has_help_opt(opts)) {
1581 object_property_iter_init(&iter, OBJECT(machine));
1582 while ((prop = object_property_iter_next(&iter))) {
1587 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1588 prop->name, prop->type);
1589 if (prop->description) {
1590 error_printf(" (%s)\n", prop->description);
1599 /***********************************************************/
1600 /* main execution loop */
1602 struct vm_change_state_entry {
1603 VMChangeStateHandler *cb;
1605 QLIST_ENTRY (vm_change_state_entry) entries;
1608 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1610 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1613 VMChangeStateEntry *e;
1615 e = g_malloc0(sizeof (*e));
1619 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1623 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1625 QLIST_REMOVE (e, entries);
1629 void vm_state_notify(int running, RunState state)
1631 VMChangeStateEntry *e, *next;
1633 trace_vm_state_notify(running, state);
1635 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1636 e->cb(e->opaque, running, state);
1640 static ShutdownCause reset_requested;
1641 static ShutdownCause shutdown_requested;
1642 static int shutdown_signal;
1643 static pid_t shutdown_pid;
1644 static int powerdown_requested;
1645 static int debug_requested;
1646 static int suspend_requested;
1647 static WakeupReason wakeup_reason;
1648 static NotifierList powerdown_notifiers =
1649 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1650 static NotifierList suspend_notifiers =
1651 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1652 static NotifierList wakeup_notifiers =
1653 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1654 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1656 ShutdownCause qemu_shutdown_requested_get(void)
1658 return shutdown_requested;
1661 ShutdownCause qemu_reset_requested_get(void)
1663 return reset_requested;
1666 static int qemu_shutdown_requested(void)
1668 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1671 static void qemu_kill_report(void)
1673 if (!qtest_driver() && shutdown_signal) {
1674 if (shutdown_pid == 0) {
1675 /* This happens for eg ^C at the terminal, so it's worth
1676 * avoiding printing an odd message in that case.
1678 error_report("terminating on signal %d", shutdown_signal);
1680 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1682 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1683 shutdown_signal, shutdown_pid,
1684 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1685 g_free(shutdown_cmd);
1687 shutdown_signal = 0;
1691 static ShutdownCause qemu_reset_requested(void)
1693 ShutdownCause r = reset_requested;
1695 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1696 reset_requested = SHUTDOWN_CAUSE_NONE;
1699 return SHUTDOWN_CAUSE_NONE;
1702 static int qemu_suspend_requested(void)
1704 int r = suspend_requested;
1705 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1706 suspend_requested = 0;
1712 static WakeupReason qemu_wakeup_requested(void)
1714 return wakeup_reason;
1717 static int qemu_powerdown_requested(void)
1719 int r = powerdown_requested;
1720 powerdown_requested = 0;
1724 static int qemu_debug_requested(void)
1726 int r = debug_requested;
1727 debug_requested = 0;
1732 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1734 void qemu_system_reset(ShutdownCause reason)
1738 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1740 cpu_synchronize_all_states();
1742 if (mc && mc->reset) {
1745 qemu_devices_reset();
1748 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1751 cpu_synchronize_all_post_reset();
1754 void qemu_system_guest_panicked(GuestPanicInformation *info)
1756 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1759 current_cpu->crash_occurred = true;
1761 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1762 !!info, info, &error_abort);
1763 vm_stop(RUN_STATE_GUEST_PANICKED);
1765 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1766 !!info, info, &error_abort);
1767 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1771 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1772 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1773 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1774 info->u.hyper_v.arg1,
1775 info->u.hyper_v.arg2,
1776 info->u.hyper_v.arg3,
1777 info->u.hyper_v.arg4,
1778 info->u.hyper_v.arg5);
1780 qapi_free_GuestPanicInformation(info);
1784 void qemu_system_reset_request(ShutdownCause reason)
1787 shutdown_requested = reason;
1789 reset_requested = reason;
1792 qemu_notify_event();
1795 static void qemu_system_suspend(void)
1798 notifier_list_notify(&suspend_notifiers, NULL);
1799 runstate_set(RUN_STATE_SUSPENDED);
1800 qapi_event_send_suspend(&error_abort);
1803 void qemu_system_suspend_request(void)
1805 if (runstate_check(RUN_STATE_SUSPENDED)) {
1808 suspend_requested = 1;
1810 qemu_notify_event();
1813 void qemu_register_suspend_notifier(Notifier *notifier)
1815 notifier_list_add(&suspend_notifiers, notifier);
1818 void qemu_system_wakeup_request(WakeupReason reason)
1820 trace_system_wakeup_request(reason);
1822 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1825 if (!(wakeup_reason_mask & (1 << reason))) {
1828 runstate_set(RUN_STATE_RUNNING);
1829 wakeup_reason = reason;
1830 qemu_notify_event();
1833 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1836 wakeup_reason_mask |= (1 << reason);
1838 wakeup_reason_mask &= ~(1 << reason);
1842 void qemu_register_wakeup_notifier(Notifier *notifier)
1844 notifier_list_add(&wakeup_notifiers, notifier);
1847 void qemu_system_killed(int signal, pid_t pid)
1849 shutdown_signal = signal;
1853 /* Cannot call qemu_system_shutdown_request directly because
1854 * we are in a signal handler.
1856 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1857 qemu_notify_event();
1860 void qemu_system_shutdown_request(ShutdownCause reason)
1862 trace_qemu_system_shutdown_request(reason);
1863 replay_shutdown_request(reason);
1864 shutdown_requested = reason;
1865 qemu_notify_event();
1868 static void qemu_system_powerdown(void)
1870 qapi_event_send_powerdown(&error_abort);
1871 notifier_list_notify(&powerdown_notifiers, NULL);
1874 void qemu_system_powerdown_request(void)
1876 trace_qemu_system_powerdown_request();
1877 powerdown_requested = 1;
1878 qemu_notify_event();
1881 void qemu_register_powerdown_notifier(Notifier *notifier)
1883 notifier_list_add(&powerdown_notifiers, notifier);
1886 void qemu_system_debug_request(void)
1888 debug_requested = 1;
1889 qemu_notify_event();
1892 static bool main_loop_should_exit(void)
1895 ShutdownCause request;
1897 if (qemu_debug_requested()) {
1898 vm_stop(RUN_STATE_DEBUG);
1900 if (qemu_suspend_requested()) {
1901 qemu_system_suspend();
1903 request = qemu_shutdown_requested();
1906 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1909 vm_stop(RUN_STATE_SHUTDOWN);
1914 request = qemu_reset_requested();
1917 qemu_system_reset(request);
1919 if (!runstate_check(RUN_STATE_RUNNING) &&
1920 !runstate_check(RUN_STATE_INMIGRATE)) {
1921 runstate_set(RUN_STATE_PRELAUNCH);
1924 if (qemu_wakeup_requested()) {
1926 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1927 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1928 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1930 qapi_event_send_wakeup(&error_abort);
1932 if (qemu_powerdown_requested()) {
1933 qemu_system_powerdown();
1935 if (qemu_vmstop_requested(&r)) {
1941 static void main_loop(void)
1943 #ifdef CONFIG_PROFILER
1947 #ifdef CONFIG_PROFILER
1948 ti = profile_getclock();
1950 main_loop_wait(false);
1951 #ifdef CONFIG_PROFILER
1952 dev_time += profile_getclock() - ti;
1954 } while (!main_loop_should_exit());
1957 static void version(void)
1959 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1960 QEMU_COPYRIGHT "\n");
1963 static void help(int exitcode)
1966 printf("usage: %s [options] [disk_image]\n\n"
1967 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1968 error_get_progname());
1970 #define QEMU_OPTIONS_GENERATE_HELP
1971 #include "qemu-options-wrapper.h"
1973 printf("\nDuring emulation, the following keys are useful:\n"
1974 "ctrl-alt-f toggle full screen\n"
1975 "ctrl-alt-n switch to virtual console 'n'\n"
1976 "ctrl-alt toggle mouse and keyboard grab\n"
1978 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1980 QEMU_HELP_BOTTOM "\n");
1985 #define HAS_ARG 0x0001
1987 typedef struct QEMUOption {
1994 static const QEMUOption qemu_options[] = {
1995 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1996 #define QEMU_OPTIONS_GENERATE_OPTIONS
1997 #include "qemu-options-wrapper.h"
2001 typedef struct VGAInterfaceInfo {
2002 const char *opt_name; /* option name */
2003 const char *name; /* human-readable name */
2004 /* Class names indicating that support is available.
2005 * If no class is specified, the interface is always available */
2006 const char *class_names[2];
2009 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2015 .name = "standard VGA",
2016 .class_names = { "VGA", "isa-vga" },
2019 .opt_name = "cirrus",
2020 .name = "Cirrus VGA",
2021 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2024 .opt_name = "vmware",
2025 .name = "VMWare SVGA",
2026 .class_names = { "vmware-svga" },
2029 .opt_name = "virtio",
2030 .name = "Virtio VGA",
2031 .class_names = { "virtio-vga" },
2036 .class_names = { "qxl-vga" },
2040 .name = "TCX framebuffer",
2041 .class_names = { "SUNW,tcx" },
2045 .name = "CG3 framebuffer",
2046 .class_names = { "cgthree" },
2049 .opt_name = "xenfb",
2053 static bool vga_interface_available(VGAInterfaceType t)
2055 VGAInterfaceInfo *ti = &vga_interfaces[t];
2057 assert(t < VGA_TYPE_MAX);
2058 return !ti->class_names[0] ||
2059 object_class_by_name(ti->class_names[0]) ||
2060 object_class_by_name(ti->class_names[1]);
2063 static void select_vgahw(const char *p)
2068 assert(vga_interface_type == VGA_NONE);
2069 for (t = 0; t < VGA_TYPE_MAX; t++) {
2070 VGAInterfaceInfo *ti = &vga_interfaces[t];
2071 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2072 if (!vga_interface_available(t)) {
2073 error_report("%s not available", ti->name);
2076 vga_interface_type = t;
2080 if (t == VGA_TYPE_MAX) {
2082 error_report("unknown vga type: %s", p);
2086 const char *nextopt;
2088 if (strstart(opts, ",retrace=", &nextopt)) {
2090 if (strstart(opts, "dumb", &nextopt))
2091 vga_retrace_method = VGA_RETRACE_DUMB;
2092 else if (strstart(opts, "precise", &nextopt))
2093 vga_retrace_method = VGA_RETRACE_PRECISE;
2094 else goto invalid_vga;
2095 } else goto invalid_vga;
2100 typedef enum DisplayType {
2110 static DisplayType select_display(const char *p)
2113 DisplayType display = DT_DEFAULT;
2115 if (strstart(p, "sdl", &opts)) {
2119 const char *nextopt;
2121 if (strstart(opts, ",frame=", &nextopt)) {
2123 if (strstart(opts, "on", &nextopt)) {
2125 } else if (strstart(opts, "off", &nextopt)) {
2128 goto invalid_sdl_args;
2130 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2132 if (strstart(opts, "on", &nextopt)) {
2134 } else if (strstart(opts, "off", &nextopt)) {
2137 goto invalid_sdl_args;
2139 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2141 if (strstart(opts, "on", &nextopt)) {
2143 } else if (strstart(opts, "off", &nextopt)) {
2146 goto invalid_sdl_args;
2148 } else if (strstart(opts, ",window_close=", &nextopt)) {
2150 if (strstart(opts, "on", &nextopt)) {
2152 } else if (strstart(opts, "off", &nextopt)) {
2155 goto invalid_sdl_args;
2157 } else if (strstart(opts, ",gl=", &nextopt)) {
2159 if (strstart(opts, "on", &nextopt)) {
2161 } else if (strstart(opts, "off", &nextopt)) {
2164 goto invalid_sdl_args;
2168 error_report("invalid SDL option string");
2174 error_report("SDL support is disabled");
2177 } else if (strstart(p, "vnc", &opts)) {
2179 vnc_parse(opts + 1, &error_fatal);
2181 error_report("VNC requires a display argument vnc=<display>");
2184 } else if (strstart(p, "egl-headless", &opts)) {
2185 #ifdef CONFIG_OPENGL_DMABUF
2190 fprintf(stderr, "egl support is disabled\n");
2193 } else if (strstart(p, "curses", &opts)) {
2194 #ifdef CONFIG_CURSES
2195 display = DT_CURSES;
2197 error_report("curses support is disabled");
2200 } else if (strstart(p, "gtk", &opts)) {
2204 const char *nextopt;
2206 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2208 if (strstart(opts, "on", &nextopt)) {
2209 grab_on_hover = true;
2210 } else if (strstart(opts, "off", &nextopt)) {
2211 grab_on_hover = false;
2213 goto invalid_gtk_args;
2215 } else if (strstart(opts, ",gl=", &nextopt)) {
2217 if (strstart(opts, "on", &nextopt)) {
2219 } else if (strstart(opts, "off", &nextopt)) {
2222 goto invalid_gtk_args;
2226 error_report("invalid GTK option string");
2232 error_report("GTK support is disabled");
2235 } else if (strstart(p, "none", &opts)) {
2238 error_report("unknown display type");
2245 static int balloon_parse(const char *arg)
2249 if (strcmp(arg, "none") == 0) {
2253 if (!strncmp(arg, "virtio", 6)) {
2254 if (arg[6] == ',') {
2255 /* have params -> parse them */
2256 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2261 /* create empty opts */
2262 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2265 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2272 char *qemu_find_file(int type, const char *name)
2278 /* Try the name as a straight path first */
2279 if (access(name, R_OK) == 0) {
2280 trace_load_file(name, name);
2281 return g_strdup(name);
2285 case QEMU_FILE_TYPE_BIOS:
2288 case QEMU_FILE_TYPE_KEYMAP:
2289 subdir = "keymaps/";
2295 for (i = 0; i < data_dir_idx; i++) {
2296 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2297 if (access(buf, R_OK) == 0) {
2298 trace_load_file(name, buf);
2306 static void qemu_add_data_dir(const char *path)
2313 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2316 for (i = 0; i < data_dir_idx; i++) {
2317 if (strcmp(data_dir[i], path) == 0) {
2318 return; /* duplicate */
2321 data_dir[data_dir_idx++] = g_strdup(path);
2324 static inline bool nonempty_str(const char *str)
2329 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2333 const char *name, *file, *str;
2334 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2336 if (fw_cfg == NULL) {
2337 error_report("fw_cfg device not available");
2340 name = qemu_opt_get(opts, "name");
2341 file = qemu_opt_get(opts, "file");
2342 str = qemu_opt_get(opts, "string");
2344 /* we need name and either a file or the content string */
2345 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2346 error_report("invalid argument(s)");
2349 if (nonempty_str(file) && nonempty_str(str)) {
2350 error_report("file and string are mutually exclusive");
2353 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2354 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2357 if (strncmp(name, "opt/", 4) != 0) {
2358 warn_report("externally provided fw_cfg item names "
2359 "should be prefixed with \"opt/\"");
2361 if (nonempty_str(str)) {
2362 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2363 buf = g_memdup(str, size);
2365 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2366 error_report("can't load %s", file);
2370 /* For legacy, keep user files in a specific global order. */
2371 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2372 fw_cfg_add_file(fw_cfg, name, buf, size);
2373 fw_cfg_reset_order_override(fw_cfg);
2377 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2379 return qdev_device_help(opts);
2382 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2387 dev = qdev_device_add(opts, &err);
2389 error_report_err(err);
2392 object_unref(OBJECT(dev));
2396 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2398 Error *local_err = NULL;
2400 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2402 error_report_err(local_err);
2410 #ifdef CONFIG_VIRTFS
2411 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2413 return qemu_fsdev_add(opts);
2417 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2420 const char *chardev;
2424 mode = qemu_opt_get(opts, "mode");
2428 if (strcmp(mode, "readline") == 0) {
2429 flags = MONITOR_USE_READLINE;
2430 } else if (strcmp(mode, "control") == 0) {
2431 flags = MONITOR_USE_CONTROL;
2433 error_report("unknown monitor mode \"%s\"", mode);
2437 if (qemu_opt_get_bool(opts, "pretty", 0))
2438 flags |= MONITOR_USE_PRETTY;
2440 if (qemu_opt_get_bool(opts, "default", 0)) {
2441 error_report("option 'default' does nothing and is deprecated");
2444 chardev = qemu_opt_get(opts, "chardev");
2445 chr = qemu_chr_find(chardev);
2447 error_report("chardev \"%s\" not found", chardev);
2451 monitor_init(chr, flags);
2455 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2457 static int monitor_device_index = 0;
2462 if (strstart(optarg, "chardev:", &p)) {
2463 snprintf(label, sizeof(label), "%s", p);
2465 snprintf(label, sizeof(label), "compat_monitor%d",
2466 monitor_device_index);
2467 opts = qemu_chr_parse_compat(label, optarg);
2469 error_report("parse error: %s", optarg);
2474 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2475 qemu_opt_set(opts, "mode", mode, &error_abort);
2476 qemu_opt_set(opts, "chardev", label, &error_abort);
2477 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2478 monitor_device_index++;
2481 struct device_config {
2483 DEV_USB, /* -usbdevice */
2485 DEV_SERIAL, /* -serial */
2486 DEV_PARALLEL, /* -parallel */
2487 DEV_VIRTCON, /* -virtioconsole */
2488 DEV_DEBUGCON, /* -debugcon */
2489 DEV_GDB, /* -gdb, -s */
2490 DEV_SCLP, /* s390 sclp */
2492 const char *cmdline;
2494 QTAILQ_ENTRY(device_config) next;
2497 static QTAILQ_HEAD(, device_config) device_configs =
2498 QTAILQ_HEAD_INITIALIZER(device_configs);
2500 static void add_device_config(int type, const char *cmdline)
2502 struct device_config *conf;
2504 conf = g_malloc0(sizeof(*conf));
2506 conf->cmdline = cmdline;
2507 loc_save(&conf->loc);
2508 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2511 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2513 struct device_config *conf;
2516 QTAILQ_FOREACH(conf, &device_configs, next) {
2517 if (conf->type != type)
2519 loc_push_restore(&conf->loc);
2520 rc = func(conf->cmdline);
2521 loc_pop(&conf->loc);
2529 static int serial_parse(const char *devname)
2531 static int index = 0;
2534 if (strcmp(devname, "none") == 0)
2536 if (index == MAX_SERIAL_PORTS) {
2537 error_report("too many serial ports");
2540 snprintf(label, sizeof(label), "serial%d", index);
2541 serial_hds[index] = qemu_chr_new(label, devname);
2542 if (!serial_hds[index]) {
2543 error_report("could not connect serial device"
2544 " to character backend '%s'", devname);
2551 static int parallel_parse(const char *devname)
2553 static int index = 0;
2556 if (strcmp(devname, "none") == 0)
2558 if (index == MAX_PARALLEL_PORTS) {
2559 error_report("too many parallel ports");
2562 snprintf(label, sizeof(label), "parallel%d", index);
2563 parallel_hds[index] = qemu_chr_new(label, devname);
2564 if (!parallel_hds[index]) {
2565 error_report("could not connect parallel device"
2566 " to character backend '%s'", devname);
2573 static int virtcon_parse(const char *devname)
2575 QemuOptsList *device = qemu_find_opts("device");
2576 static int index = 0;
2578 QemuOpts *bus_opts, *dev_opts;
2580 if (strcmp(devname, "none") == 0)
2582 if (index == MAX_VIRTIO_CONSOLES) {
2583 error_report("too many virtio consoles");
2587 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2588 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2590 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2591 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2593 snprintf(label, sizeof(label), "virtcon%d", index);
2594 virtcon_hds[index] = qemu_chr_new(label, devname);
2595 if (!virtcon_hds[index]) {
2596 error_report("could not connect virtio console"
2597 " to character backend '%s'", devname);
2600 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2606 static int sclp_parse(const char *devname)
2608 QemuOptsList *device = qemu_find_opts("device");
2609 static int index = 0;
2613 if (strcmp(devname, "none") == 0) {
2616 if (index == MAX_SCLP_CONSOLES) {
2617 error_report("too many sclp consoles");
2621 assert(arch_type == QEMU_ARCH_S390X);
2623 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2624 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2626 snprintf(label, sizeof(label), "sclpcon%d", index);
2627 sclp_hds[index] = qemu_chr_new(label, devname);
2628 if (!sclp_hds[index]) {
2629 error_report("could not connect sclp console"
2630 " to character backend '%s'", devname);
2633 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2639 static int debugcon_parse(const char *devname)
2643 if (!qemu_chr_new("debugcon", devname)) {
2646 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2648 error_report("already have a debugcon device");
2651 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2652 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2656 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2658 const MachineClass *mc1 = a, *mc2 = b;
2661 if (mc1->family == NULL) {
2662 if (mc2->family == NULL) {
2663 /* Compare standalone machine types against each other; they sort
2664 * in increasing order.
2666 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2667 object_class_get_name(OBJECT_CLASS(mc2)));
2670 /* Standalone machine types sort after families. */
2674 if (mc2->family == NULL) {
2675 /* Families sort before standalone machine types. */
2679 /* Families sort between each other alphabetically increasingly. */
2680 res = strcmp(mc1->family, mc2->family);
2685 /* Within the same family, machine types sort in decreasing order. */
2686 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2687 object_class_get_name(OBJECT_CLASS(mc1)));
2690 static MachineClass *machine_parse(const char *name)
2692 MachineClass *mc = NULL;
2693 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2696 mc = find_machine(name);
2699 g_slist_free(machines);
2702 if (name && !is_help_option(name)) {
2703 error_report("unsupported machine type");
2704 error_printf("Use -machine help to list supported machines\n");
2706 printf("Supported machines are:\n");
2707 machines = g_slist_sort(machines, machine_class_cmp);
2708 for (el = machines; el; el = el->next) {
2709 MachineClass *mc = el->data;
2711 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2713 printf("%-20s %s%s\n", mc->name, mc->desc,
2714 mc->is_default ? " (default)" : "");
2718 g_slist_free(machines);
2719 exit(!name || !is_help_option(name));
2722 void qemu_add_exit_notifier(Notifier *notify)
2724 notifier_list_add(&exit_notifiers, notify);
2727 void qemu_remove_exit_notifier(Notifier *notify)
2729 notifier_remove(notify);
2732 static void qemu_run_exit_notifiers(void)
2734 notifier_list_notify(&exit_notifiers, NULL);
2737 static bool machine_init_done;
2739 void qemu_add_machine_init_done_notifier(Notifier *notify)
2741 notifier_list_add(&machine_init_done_notifiers, notify);
2742 if (machine_init_done) {
2743 notify->notify(notify, NULL);
2747 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2749 notifier_remove(notify);
2752 static void qemu_run_machine_init_done_notifiers(void)
2754 notifier_list_notify(&machine_init_done_notifiers, NULL);
2755 machine_init_done = true;
2758 static const QEMUOption *lookup_opt(int argc, char **argv,
2759 const char **poptarg, int *poptind)
2761 const QEMUOption *popt;
2762 int optind = *poptind;
2763 char *r = argv[optind];
2766 loc_set_cmdline(argv, optind, 1);
2768 /* Treat --foo the same as -foo. */
2771 popt = qemu_options;
2774 error_report("invalid option");
2777 if (!strcmp(popt->name, r + 1))
2781 if (popt->flags & HAS_ARG) {
2782 if (optind >= argc) {
2783 error_report("requires an argument");
2786 optarg = argv[optind++];
2787 loc_set_cmdline(argv, optind - 2, 2);
2798 static MachineClass *select_machine(void)
2800 MachineClass *machine_class = find_default_machine();
2805 loc_push_none(&loc);
2807 opts = qemu_get_machine_opts();
2808 qemu_opts_loc_restore(opts);
2810 optarg = qemu_opt_get(opts, "type");
2812 machine_class = machine_parse(optarg);
2815 if (!machine_class) {
2816 error_report("No machine specified, and there is no default");
2817 error_printf("Use -machine help to list supported machines\n");
2822 return machine_class;
2825 static int machine_set_property(void *opaque,
2826 const char *name, const char *value,
2829 Object *obj = OBJECT(opaque);
2830 Error *local_err = NULL;
2833 if (strcmp(name, "type") == 0) {
2837 qom_name = g_strdup(name);
2838 for (p = qom_name; *p; p++) {
2844 object_property_parse(obj, value, qom_name, &local_err);
2848 error_report_err(local_err);
2857 * Initial object creation happens before all other
2858 * QEMU data types are created. The majority of objects
2859 * can be created at this point. The rng-egd object
2860 * cannot be created here, as it depends on the chardev
2863 static bool object_create_initial(const char *type)
2865 if (g_str_equal(type, "rng-egd") ||
2866 g_str_has_prefix(type, "pr-manager-")) {
2871 * return false for concrete netfilters since
2872 * they depend on netdevs already existing
2874 if (g_str_equal(type, "filter-buffer") ||
2875 g_str_equal(type, "filter-dump") ||
2876 g_str_equal(type, "filter-mirror") ||
2877 g_str_equal(type, "filter-redirector") ||
2878 g_str_equal(type, "colo-compare") ||
2879 g_str_equal(type, "filter-rewriter") ||
2880 g_str_equal(type, "filter-replay")) {
2884 /* Memory allocation by backends needs to be done
2885 * after configure_accelerator() (due to the tcg_enabled()
2886 * checks at memory_region_init_*()).
2888 * Also, allocation of large amounts of memory may delay
2889 * chardev initialization for too long, and trigger timeouts
2890 * on software that waits for a monitor socket to be created
2893 if (g_str_has_prefix(type, "memory-backend-")) {
2902 * The remainder of object creation happens after the
2903 * creation of chardev, fsdev, net clients and device data types.
2905 static bool object_create_delayed(const char *type)
2907 return !object_create_initial(type);
2911 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2915 const char *mem_str;
2916 const char *maxmem_str, *slots_str;
2917 const ram_addr_t default_ram_size = mc->default_ram_size;
2918 QemuOpts *opts = qemu_find_opts_singleton("memory");
2921 loc_push_none(&loc);
2922 qemu_opts_loc_restore(opts);
2925 mem_str = qemu_opt_get(opts, "size");
2928 error_report("missing 'size' option value");
2932 sz = qemu_opt_get_size(opts, "size", ram_size);
2934 /* Fix up legacy suffix-less format */
2935 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2936 uint64_t overflow_check = sz;
2939 if ((sz >> 20) != overflow_check) {
2940 error_report("too large 'size' option value");
2946 /* backward compatibility behaviour for case "-m 0" */
2948 sz = default_ram_size;
2951 sz = QEMU_ALIGN_UP(sz, 8192);
2953 if (ram_size != sz) {
2954 error_report("ram size too large");
2958 /* store value for the future use */
2959 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2960 *maxram_size = ram_size;
2962 maxmem_str = qemu_opt_get(opts, "maxmem");
2963 slots_str = qemu_opt_get(opts, "slots");
2964 if (maxmem_str && slots_str) {
2967 sz = qemu_opt_get_size(opts, "maxmem", 0);
2968 slots = qemu_opt_get_number(opts, "slots", 0);
2969 if (sz < ram_size) {
2970 error_report("invalid value of -m option maxmem: "
2971 "maximum memory size (0x%" PRIx64 ") must be at least "
2972 "the initial memory size (0x" RAM_ADDR_FMT ")",
2975 } else if (sz > ram_size) {
2977 error_report("invalid value of -m option: maxmem was "
2978 "specified, but no hotplug slots were specified");
2982 error_report("invalid value of -m option maxmem: "
2983 "memory slots were specified but maximum memory size "
2984 "(0x%" PRIx64 ") is equal to the initial memory size "
2985 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2991 } else if ((!maxmem_str && slots_str) ||
2992 (maxmem_str && !slots_str)) {
2993 error_report("invalid -m option value: missing "
2994 "'%s' option", slots_str ? "maxmem" : "slots");
3001 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
3005 g = g_malloc0(sizeof(*g));
3006 g->driver = qemu_opt_get(opts, "driver");
3007 g->property = qemu_opt_get(opts, "property");
3008 g->value = qemu_opt_get(opts, "value");
3009 g->user_provided = true;
3010 g->errp = &error_fatal;
3011 qdev_prop_register_global(g);
3015 static int qemu_read_default_config_file(void)
3019 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3020 if (ret < 0 && ret != -ENOENT) {
3027 static void user_register_global_props(void)
3029 qemu_opts_foreach(qemu_find_opts("global"),
3030 global_init_func, NULL, NULL);
3034 * Note: we should see that these properties are actually having a
3035 * priority: accel < machine < user. This means e.g. when user
3036 * specifies something in "-global", it'll always be used with highest
3037 * priority than either machine/accelerator compat properties.
3039 static void register_global_properties(MachineState *ms)
3041 accel_register_compat_props(ms->accelerator);
3042 machine_register_compat_props(ms);
3043 user_register_global_props();
3046 int main(int argc, char **argv, char **envp)
3049 int snapshot, linux_boot;
3050 const char *initrd_filename;
3051 const char *kernel_filename, *kernel_cmdline;
3052 const char *boot_order = NULL;
3053 const char *boot_once = NULL;
3055 QemuOpts *opts, *machine_opts;
3056 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3057 QemuOptsList *olist;
3060 const char *loadvm = NULL;
3061 MachineClass *machine_class;
3062 const char *cpu_model;
3063 const char *vga_model = NULL;
3064 const char *qtest_chrdev = NULL;
3065 const char *qtest_log = NULL;
3066 const char *pid_file = NULL;
3067 const char *incoming = NULL;
3068 bool userconfig = true;
3069 bool nographic = false;
3070 DisplayType display_type = DT_DEFAULT;
3071 int display_remote = 0;
3072 const char *log_mask = NULL;
3073 const char *log_file = NULL;
3074 char *trace_file = NULL;
3075 ram_addr_t maxram_size;
3076 uint64_t ram_slots = 0;
3077 FILE *vmstate_dump_file = NULL;
3078 Error *main_loop_err = NULL;
3080 bool list_data_dirs = false;
3082 typedef struct BlockdevOptions_queue {
3083 BlockdevOptions *bdo;
3085 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3086 } BlockdevOptions_queue;
3087 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3088 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3090 module_call_init(MODULE_INIT_TRACE);
3092 qemu_init_cpu_list();
3093 qemu_init_cpu_loop();
3094 qemu_mutex_lock_iothread();
3096 atexit(qemu_run_exit_notifiers);
3097 error_set_progname(argv[0]);
3098 qemu_init_exec_dir(argv[0]);
3100 module_call_init(MODULE_INIT_QOM);
3101 monitor_init_qmp_commands();
3103 qemu_add_opts(&qemu_drive_opts);
3104 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3105 qemu_add_drive_opts(&qemu_common_drive_opts);
3106 qemu_add_drive_opts(&qemu_drive_opts);
3107 qemu_add_drive_opts(&bdrv_runtime_opts);
3108 qemu_add_opts(&qemu_chardev_opts);
3109 qemu_add_opts(&qemu_device_opts);
3110 qemu_add_opts(&qemu_netdev_opts);
3111 qemu_add_opts(&qemu_net_opts);
3112 qemu_add_opts(&qemu_rtc_opts);
3113 qemu_add_opts(&qemu_global_opts);
3114 qemu_add_opts(&qemu_mon_opts);
3115 qemu_add_opts(&qemu_trace_opts);
3116 qemu_add_opts(&qemu_option_rom_opts);
3117 qemu_add_opts(&qemu_machine_opts);
3118 qemu_add_opts(&qemu_accel_opts);
3119 qemu_add_opts(&qemu_mem_opts);
3120 qemu_add_opts(&qemu_smp_opts);
3121 qemu_add_opts(&qemu_boot_opts);
3122 qemu_add_opts(&qemu_sandbox_opts);
3123 qemu_add_opts(&qemu_add_fd_opts);
3124 qemu_add_opts(&qemu_object_opts);
3125 qemu_add_opts(&qemu_tpmdev_opts);
3126 qemu_add_opts(&qemu_realtime_opts);
3127 qemu_add_opts(&qemu_msg_opts);
3128 qemu_add_opts(&qemu_name_opts);
3129 qemu_add_opts(&qemu_numa_opts);
3130 qemu_add_opts(&qemu_icount_opts);
3131 qemu_add_opts(&qemu_semihosting_config_opts);
3132 qemu_add_opts(&qemu_fw_cfg_opts);
3133 module_call_init(MODULE_INIT_OPTS);
3137 if (qcrypto_init(&err) < 0) {
3138 error_reportf_err(err, "cannot initialize crypto: ");
3141 rtc_clock = QEMU_CLOCK_HOST;
3143 QLIST_INIT (&vm_change_state_head);
3144 os_setup_early_signal_handling();
3151 bdrv_init_with_whitelist();
3155 /* first pass of option parsing */
3157 while (optind < argc) {
3158 if (argv[optind][0] != '-') {
3162 const QEMUOption *popt;
3164 popt = lookup_opt(argc, argv, &optarg, &optind);
3165 switch (popt->index) {
3166 case QEMU_OPTION_nodefconfig:
3167 case QEMU_OPTION_nouserconfig:
3175 if (qemu_read_default_config_file() < 0) {
3180 /* second pass of option parsing */
3185 if (argv[optind][0] != '-') {
3186 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3188 const QEMUOption *popt;
3190 popt = lookup_opt(argc, argv, &optarg, &optind);
3191 if (!(popt->arch_mask & arch_type)) {
3192 error_report("Option not supported for this target");
3195 switch(popt->index) {
3196 case QEMU_OPTION_no_kvm_irqchip: {
3197 olist = qemu_find_opts("machine");
3198 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3201 case QEMU_OPTION_cpu:
3202 /* hw initialization will check this */
3205 case QEMU_OPTION_hda:
3206 case QEMU_OPTION_hdb:
3207 case QEMU_OPTION_hdc:
3208 case QEMU_OPTION_hdd:
3209 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3212 case QEMU_OPTION_blockdev:
3215 BlockdevOptions_queue *bdo;
3217 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3219 error_report_err(err);
3223 bdo = g_new(BlockdevOptions_queue, 1);
3224 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3227 loc_save(&bdo->loc);
3228 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3231 case QEMU_OPTION_drive:
3232 if (drive_def(optarg) == NULL) {
3236 case QEMU_OPTION_set:
3237 if (qemu_set_option(optarg) != 0)
3240 case QEMU_OPTION_global:
3241 if (qemu_global_option(optarg) != 0)
3244 case QEMU_OPTION_mtdblock:
3245 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3247 case QEMU_OPTION_sd:
3248 drive_add(IF_SD, -1, optarg, SD_OPTS);
3250 case QEMU_OPTION_pflash:
3251 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3253 case QEMU_OPTION_snapshot:
3256 case QEMU_OPTION_numa:
3257 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3263 case QEMU_OPTION_display:
3264 display_type = select_display(optarg);
3266 case QEMU_OPTION_nographic:
3267 olist = qemu_find_opts("machine");
3268 qemu_opts_parse_noisily(olist, "graphics=off", false);
3270 display_type = DT_NONE;
3272 case QEMU_OPTION_curses:
3273 #ifdef CONFIG_CURSES
3274 display_type = DT_CURSES;
3276 error_report("curses support is disabled");
3280 case QEMU_OPTION_portrait:
3281 graphic_rotate = 90;
3283 case QEMU_OPTION_rotate:
3284 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3285 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3286 graphic_rotate != 180 && graphic_rotate != 270) {
3287 error_report("only 90, 180, 270 deg rotation is available");
3291 case QEMU_OPTION_kernel:
3292 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3295 case QEMU_OPTION_initrd:
3296 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3299 case QEMU_OPTION_append:
3300 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3303 case QEMU_OPTION_dtb:
3304 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3307 case QEMU_OPTION_cdrom:
3308 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3310 case QEMU_OPTION_boot:
3311 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3317 case QEMU_OPTION_fda:
3318 case QEMU_OPTION_fdb:
3319 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3322 case QEMU_OPTION_no_fd_bootchk:
3325 case QEMU_OPTION_netdev:
3327 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3331 case QEMU_OPTION_net:
3333 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3337 #ifdef CONFIG_LIBISCSI
3338 case QEMU_OPTION_iscsi:
3339 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3347 case QEMU_OPTION_tftp:
3348 error_report("The -tftp option is deprecated. "
3349 "Please use '-netdev user,tftp=...' instead.");
3350 legacy_tftp_prefix = optarg;
3352 case QEMU_OPTION_bootp:
3353 error_report("The -bootp option is deprecated. "
3354 "Please use '-netdev user,bootfile=...' instead.");
3355 legacy_bootp_filename = optarg;
3357 case QEMU_OPTION_redir:
3358 error_report("The -redir option is deprecated. "
3359 "Please use '-netdev user,hostfwd=...' instead.");
3360 if (net_slirp_redir(optarg) < 0)
3364 case QEMU_OPTION_bt:
3365 add_device_config(DEV_BT, optarg);
3367 case QEMU_OPTION_audio_help:
3371 case QEMU_OPTION_soundhw:
3372 select_soundhw (optarg);
3377 case QEMU_OPTION_version:
3382 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3389 case QEMU_OPTION_tpmdev:
3390 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3395 case QEMU_OPTION_mempath:
3398 case QEMU_OPTION_mem_prealloc:
3407 case QEMU_OPTION_DFILTER:
3408 qemu_set_dfilter_ranges(optarg, &error_fatal);
3411 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3413 case QEMU_OPTION_gdb:
3414 add_device_config(DEV_GDB, optarg);
3417 if (is_help_option(optarg)) {
3418 list_data_dirs = true;
3420 qemu_add_data_dir(optarg);
3423 case QEMU_OPTION_bios:
3424 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3427 case QEMU_OPTION_singlestep:
3434 keyboard_layout = optarg;
3436 case QEMU_OPTION_localtime:
3439 case QEMU_OPTION_vga:
3448 w = strtol(p, (char **)&p, 10);
3451 error_report("invalid resolution or depth");
3457 h = strtol(p, (char **)&p, 10);
3462 depth = strtol(p, (char **)&p, 10);
3463 if (depth != 8 && depth != 15 && depth != 16 &&
3464 depth != 24 && depth != 32)
3466 } else if (*p == '\0') {
3467 depth = graphic_depth;
3474 graphic_depth = depth;
3477 case QEMU_OPTION_echr:
3480 term_escape_char = strtol(optarg, &r, 0);
3482 printf("Bad argument to echr\n");
3485 case QEMU_OPTION_monitor:
3486 default_monitor = 0;
3487 if (strncmp(optarg, "none", 4)) {
3488 monitor_parse(optarg, "readline", false);
3491 case QEMU_OPTION_qmp:
3492 monitor_parse(optarg, "control", false);
3493 default_monitor = 0;
3495 case QEMU_OPTION_qmp_pretty:
3496 monitor_parse(optarg, "control", true);
3497 default_monitor = 0;
3499 case QEMU_OPTION_mon:
3500 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3505 default_monitor = 0;
3507 case QEMU_OPTION_chardev:
3508 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3514 case QEMU_OPTION_fsdev:
3515 olist = qemu_find_opts("fsdev");
3517 error_report("fsdev support is disabled");
3520 opts = qemu_opts_parse_noisily(olist, optarg, true);
3525 case QEMU_OPTION_virtfs: {
3528 const char *writeout, *sock_fd, *socket, *path, *security_model;
3530 olist = qemu_find_opts("virtfs");
3532 error_report("virtfs support is disabled");
3535 opts = qemu_opts_parse_noisily(olist, optarg, true);
3540 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3541 qemu_opt_get(opts, "mount_tag") == NULL) {
3542 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3545 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3546 qemu_opts_id(opts) ?:
3547 qemu_opt_get(opts, "mount_tag"),
3550 error_report("duplicate or invalid fsdev id: %s",
3551 qemu_opt_get(opts, "mount_tag"));
3555 writeout = qemu_opt_get(opts, "writeout");
3557 #ifdef CONFIG_SYNC_FILE_RANGE
3558 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3560 error_report("writeout=immediate not supported "
3561 "on this platform");
3565 qemu_opt_set(fsdev, "fsdriver",
3566 qemu_opt_get(opts, "fsdriver"), &error_abort);
3567 path = qemu_opt_get(opts, "path");
3569 qemu_opt_set(fsdev, "path", path, &error_abort);
3571 security_model = qemu_opt_get(opts, "security_model");
3572 if (security_model) {
3573 qemu_opt_set(fsdev, "security_model", security_model,
3576 socket = qemu_opt_get(opts, "socket");
3578 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3580 sock_fd = qemu_opt_get(opts, "sock_fd");
3582 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3585 qemu_opt_set_bool(fsdev, "readonly",
3586 qemu_opt_get_bool(opts, "readonly", 0),
3588 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3590 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3591 qemu_opt_set(device, "fsdev",
3592 qemu_opts_id(fsdev), &error_abort);
3593 qemu_opt_set(device, "mount_tag",
3594 qemu_opt_get(opts, "mount_tag"), &error_abort);
3597 case QEMU_OPTION_virtfs_synth: {
3601 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3604 error_report("duplicate option: %s", "virtfs_synth");
3607 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3609 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3611 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3612 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3613 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3616 case QEMU_OPTION_serial:
3617 add_device_config(DEV_SERIAL, optarg);
3619 if (strncmp(optarg, "mon:", 4) == 0) {
3620 default_monitor = 0;
3623 case QEMU_OPTION_watchdog:
3625 error_report("only one watchdog option may be given");
3630 case QEMU_OPTION_watchdog_action:
3631 if (select_watchdog_action(optarg) == -1) {
3632 error_report("unknown -watchdog-action parameter");
3636 case QEMU_OPTION_virtiocon:
3637 add_device_config(DEV_VIRTCON, optarg);
3638 default_virtcon = 0;
3639 if (strncmp(optarg, "mon:", 4) == 0) {
3640 default_monitor = 0;
3643 case QEMU_OPTION_parallel:
3644 add_device_config(DEV_PARALLEL, optarg);
3645 default_parallel = 0;
3646 if (strncmp(optarg, "mon:", 4) == 0) {
3647 default_monitor = 0;
3650 case QEMU_OPTION_debugcon:
3651 add_device_config(DEV_DEBUGCON, optarg);
3653 case QEMU_OPTION_loadvm:
3656 case QEMU_OPTION_full_screen:
3659 case QEMU_OPTION_no_frame:
3662 case QEMU_OPTION_alt_grab:
3665 case QEMU_OPTION_ctrl_grab:
3668 case QEMU_OPTION_no_quit:
3671 case QEMU_OPTION_sdl:
3673 display_type = DT_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);
3695 case QEMU_OPTION_acpitable:
3696 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3701 acpi_table_add(opts, &error_fatal);
3703 case QEMU_OPTION_smbios:
3704 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3709 smbios_entry_add(opts, &error_fatal);
3711 case QEMU_OPTION_fwcfg:
3712 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3718 case QEMU_OPTION_enable_kvm:
3719 olist = qemu_find_opts("machine");
3720 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3722 case QEMU_OPTION_enable_hax:
3723 olist = qemu_find_opts("machine");
3724 qemu_opts_parse_noisily(olist, "accel=hax", false);
3727 case QEMU_OPTION_machine:
3728 olist = qemu_find_opts("machine");
3729 opts = qemu_opts_parse_noisily(olist, optarg, true);
3734 case QEMU_OPTION_no_kvm:
3735 olist = qemu_find_opts("machine");
3736 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3738 case QEMU_OPTION_no_kvm_pit_reinjection: {
3739 static GlobalProperty kvm_pit_lost_tick_policy = {
3740 .driver = "kvm-pit",
3741 .property = "lost_tick_policy",
3745 warn_report("deprecated, replaced by "
3746 "-global kvm-pit.lost_tick_policy=discard");
3747 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3750 case QEMU_OPTION_accel:
3751 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3753 optarg = qemu_opt_get(accel_opts, "accel");
3754 if (!optarg || is_help_option(optarg)) {
3755 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3758 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3759 false, &error_abort);
3760 qemu_opt_set(opts, "accel", optarg, &error_abort);
3762 case QEMU_OPTION_usb:
3763 olist = qemu_find_opts("machine");
3764 qemu_opts_parse_noisily(olist, "usb=on", false);
3766 case QEMU_OPTION_usbdevice:
3767 error_report("'-usbdevice' is deprecated, please use "
3768 "'-device usb-...' instead");
3769 olist = qemu_find_opts("machine");
3770 qemu_opts_parse_noisily(olist, "usb=on", false);
3771 add_device_config(DEV_USB, optarg);
3773 case QEMU_OPTION_device:
3774 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3779 case QEMU_OPTION_smp:
3780 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3785 case QEMU_OPTION_vnc:
3786 vnc_parse(optarg, &error_fatal);
3788 case QEMU_OPTION_no_acpi:
3791 case QEMU_OPTION_no_hpet:
3794 case QEMU_OPTION_balloon:
3795 if (balloon_parse(optarg) < 0) {
3796 error_report("unknown -balloon argument %s", optarg);
3800 case QEMU_OPTION_no_reboot:
3803 case QEMU_OPTION_no_shutdown:
3806 case QEMU_OPTION_show_cursor:
3809 case QEMU_OPTION_uuid:
3810 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3811 error_report("failed to parse UUID string: wrong format");
3814 qemu_uuid_set = true;
3816 case QEMU_OPTION_option_rom:
3817 if (nb_option_roms >= MAX_OPTION_ROMS) {
3818 error_report("too many option ROMs");
3821 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3826 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3827 option_rom[nb_option_roms].bootindex =
3828 qemu_opt_get_number(opts, "bootindex", -1);
3829 if (!option_rom[nb_option_roms].name) {
3830 error_report("Option ROM file is not specified");
3835 case QEMU_OPTION_semihosting:
3836 semihosting.enabled = true;
3837 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3839 case QEMU_OPTION_semihosting_config:
3840 semihosting.enabled = true;
3841 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3844 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3846 const char *target = qemu_opt_get(opts, "target");
3847 if (target != NULL) {
3848 if (strcmp("native", target) == 0) {
3849 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3850 } else if (strcmp("gdb", target) == 0) {
3851 semihosting.target = SEMIHOSTING_TARGET_GDB;
3852 } else if (strcmp("auto", target) == 0) {
3853 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3855 error_report("unsupported semihosting-config %s",
3860 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3862 /* Set semihosting argument count and vector */
3863 qemu_opt_foreach(opts, add_semihosting_arg,
3864 &semihosting, NULL);
3866 error_report("unsupported semihosting-config %s", optarg);
3870 case QEMU_OPTION_tdf:
3871 warn_report("ignoring deprecated option");
3873 case QEMU_OPTION_name:
3874 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3880 case QEMU_OPTION_prom_env:
3881 if (nb_prom_envs >= MAX_PROM_ENVS) {
3882 error_report("too many prom variables");
3885 prom_envs[nb_prom_envs] = optarg;
3888 case QEMU_OPTION_old_param:
3891 case QEMU_OPTION_clock:
3892 /* Clock options no longer exist. Keep this option for
3893 * backward compatibility.
3896 case QEMU_OPTION_startdate:
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 (display_type == DT_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 (display_type == DT_DEFAULT && !display_remote) {
4335 #if defined(CONFIG_GTK)
4336 display_type = DT_GTK;
4337 #elif defined(CONFIG_SDL)
4338 display_type = DT_SDL;
4339 #elif defined(CONFIG_COCOA)
4340 display_type = DT_COCOA;
4341 #elif defined(CONFIG_VNC)
4342 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4344 display_type = DT_NONE;
4348 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4349 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4350 "for SDL, ignoring option");
4352 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4353 error_report("-no-quit is only valid for GTK and SDL, "
4357 if (display_type == DT_GTK) {
4358 early_gtk_display_init(request_opengl);
4361 if (display_type == DT_SDL) {
4362 sdl_display_early_init(request_opengl);
4365 qemu_console_early_init();
4367 if (request_opengl == 1 && display_opengl == 0) {
4368 #if defined(CONFIG_OPENGL)
4369 error_report("OpenGL is not supported by the display");
4371 error_report("OpenGL support is disabled");
4379 if (qemu_opts_foreach(qemu_find_opts("object"),
4380 user_creatable_add_opts_foreach,
4381 object_create_initial, NULL)) {
4385 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4386 chardev_init_func, NULL, NULL)) {
4390 #ifdef CONFIG_VIRTFS
4391 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4392 fsdev_init_func, NULL, NULL)) {
4397 if (qemu_opts_foreach(qemu_find_opts("device"),
4398 device_help_func, NULL, NULL)) {
4402 machine_opts = qemu_get_machine_opts();
4403 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4405 object_unref(OBJECT(current_machine));
4409 configure_accelerator(current_machine);
4412 * Register all the global properties, including accel properties,
4413 * machine properties, and user-specified ones.
4415 register_global_properties(current_machine);
4418 * Migration object can only be created after global properties
4419 * are applied correctly.
4421 migration_object_init();
4424 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4427 machine_opts = qemu_get_machine_opts();
4428 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4429 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4430 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4431 bios_name = qemu_opt_get(machine_opts, "firmware");
4433 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4435 boot_order = qemu_opt_get(opts, "order");
4437 validate_bootdevices(boot_order, &error_fatal);
4440 boot_once = qemu_opt_get(opts, "once");
4442 validate_bootdevices(boot_once, &error_fatal);
4445 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4446 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4450 boot_order = machine_class->default_boot_order;
4453 if (!kernel_cmdline) {
4454 kernel_cmdline = "";
4455 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4458 linux_boot = (kernel_filename != NULL);
4460 if (!linux_boot && *kernel_cmdline != '\0') {
4461 error_report("-append only allowed with -kernel option");
4465 if (!linux_boot && initrd_filename != NULL) {
4466 error_report("-initrd only allowed with -kernel option");
4470 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4471 /* fall back to the -kernel/-append */
4472 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4475 os_set_line_buffering();
4477 /* spice needs the timers to be initialized by this point */
4482 if (!tcg_enabled()) {
4483 error_report("-icount is not allowed with hardware virtualization");
4486 configure_icount(icount_opts, &error_abort);
4487 qemu_opts_del(icount_opts);
4490 if (tcg_enabled()) {
4491 qemu_tcg_configure(accel_opts, &error_fatal);
4495 QemuOptsList *net = qemu_find_opts("net");
4496 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4498 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4504 if (net_init_clients() < 0) {
4508 if (qemu_opts_foreach(qemu_find_opts("object"),
4509 user_creatable_add_opts_foreach,
4510 object_create_delayed, NULL)) {
4514 if (tpm_init() < 0) {
4518 /* init the bluetooth world */
4519 if (foreach_device_config(DEV_BT, bt_parse))
4522 if (!xen_enabled()) {
4523 /* On 32-bit hosts, QEMU is limited by virtual address space */
4524 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4525 error_report("at most 2047 MB RAM can be simulated");
4533 /* If the currently selected machine wishes to override the units-per-bus
4534 * property of its default HBA interface type, do so now. */
4535 if (machine_class->units_per_default_bus) {
4536 override_max_devs(machine_class->block_default_type,
4537 machine_class->units_per_default_bus);
4540 /* open the virtual block devices */
4541 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4542 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4544 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4545 loc_push_restore(&bdo->loc);
4546 qmp_blockdev_add(bdo->bdo, &error_fatal);
4548 qapi_free_BlockdevOptions(bdo->bdo);
4551 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4552 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4555 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4556 &machine_class->block_default_type, NULL)) {
4560 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4562 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4563 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
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;
4612 current_machine->cpu_model = cpu_model;
4614 /* parse features once if machine provides default cpu_type */
4615 if (machine_class->default_cpu_type) {
4616 current_machine->cpu_type = machine_class->default_cpu_type;
4618 current_machine->cpu_type =
4619 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4622 parse_numa_opts(current_machine);
4624 machine_run_board_init(current_machine);
4630 if (hax_enabled()) {
4634 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4635 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4639 /* init USB devices */
4640 if (machine_usb(current_machine)) {
4641 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4645 /* Check if IGD GFX passthrough. */
4648 /* init generic devices */
4649 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4650 if (qemu_opts_foreach(qemu_find_opts("device"),
4651 device_init_func, NULL, NULL)) {
4655 cpu_synchronize_all_post_init();
4657 rom_reset_order_override();
4660 * Create frontends for -drive if=scsi leftovers.
4661 * Normally, frontends for -drive get created by machine
4662 * initialization for onboard SCSI HBAs. However, we create a few
4663 * more ever since SCSI qdevification, but this is pretty much an
4664 * implementation accident, and deprecated.
4666 scsi_legacy_handle_cmdline();
4668 /* Did we create any drives that we failed to create a device for? */
4669 drive_check_orphaned();
4671 /* Don't warn about the default network setup that you get if
4672 * no command line -net or -netdev options are specified. There
4673 * are two cases that we would otherwise complain about:
4674 * (1) board doesn't support a NIC but the implicit "-net nic"
4676 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4677 * sets up a nic that isn't connected to anything.
4680 net_check_clients();
4685 qemu_boot_set(boot_once, &error_fatal);
4686 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4689 ds = init_displaystate();
4691 /* init local displays */
4692 switch (display_type) {
4694 curses_display_init(ds, full_screen);
4697 sdl_display_init(ds, full_screen);
4700 cocoa_display_init(ds, full_screen);
4703 gtk_display_init(ds, full_screen, grab_on_hover);
4709 /* must be after terminal init, SDL library changes signal handlers */
4710 os_setup_signal_handling();
4712 /* init remote displays */
4714 qemu_opts_foreach(qemu_find_opts("vnc"),
4715 vnc_init_func, NULL, NULL);
4719 qemu_spice_display_init();
4722 #ifdef CONFIG_OPENGL_DMABUF
4723 if (display_type == DT_EGL) {
4724 egl_headless_init();
4728 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4732 qdev_machine_creation_done();
4734 /* TODO: once all bus devices are qdevified, this should be done
4735 * when bus is created by qdev.c */
4736 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4737 qemu_run_machine_init_done_notifiers();
4739 if (rom_check_and_register_reset() != 0) {
4740 error_report("rom check and register reset failed");
4746 /* This checkpoint is required by replay to separate prior clock
4747 reading from the other reads, because timer polling functions query
4748 clock values from the log. */
4749 replay_checkpoint(CHECKPOINT_RESET);
4750 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4751 register_global_state();
4752 if (replay_mode != REPLAY_MODE_NONE) {
4753 replay_vmstate_init();
4754 } else if (loadvm) {
4755 Error *local_err = NULL;
4756 if (load_snapshot(loadvm, &local_err) < 0) {
4757 error_report_err(local_err);
4762 qdev_prop_check_globals();
4763 if (vmstate_dump_file) {
4765 dump_vmstate_json_to_file(vmstate_dump_file);
4770 Error *local_err = NULL;
4771 qemu_start_incoming_migration(incoming, &local_err);
4773 error_reportf_err(local_err, "-incoming %s: ", incoming);
4776 } else if (autostart) {
4783 replay_disable_events();
4784 iothread_stop_all();
4790 /* vhost-user must be cleaned up before chardevs. */
4796 user_creatable_cleanup();
4797 migration_object_finalize();
4798 /* TODO: unref root container, check all devices are ok */