4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
35 #if defined(__APPLE__) || defined(main)
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
40 return qemu_main(argc, argv, NULL);
43 #define main qemu_main
45 #endif /* CONFIG_SDL */
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
103 #include "fsdev/qemu-fsdev.h"
105 #include "sysemu/qtest.h"
107 #include "disas/disas.h"
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/arch_init.h"
114 #include "ui/qemu-spice.h"
115 #include "qapi/string-input-visitor.h"
116 #include "qapi/opts-visitor.h"
117 #include "qapi/clone-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "exec/semihost.h"
120 #include "crypto/init.h"
121 #include "sysemu/replay.h"
122 #include "qapi/qapi-events-run-state.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-ui.h"
125 #include "qapi/qapi-commands-block-core.h"
126 #include "qapi/qapi-commands-misc.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
132 #define MAX_VIRTIO_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;
139 const char* keyboard_layout = NULL;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 bool enable_cpu_pm = false;
146 NICInfo nd_table[MAX_NICS];
152 } rtc_base_type = RTC_BASE_UTC;
153 static time_t rtc_ref_start_datetime;
154 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
155 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 QEMUClockType rtc_clock;
158 int vga_interface_type = VGA_NONE;
159 static DisplayOptions dpy;
160 static int num_serial_hds;
161 static Chardev **serial_hds;
162 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
163 int win2k_install_hack = 0;
166 unsigned int max_cpus;
169 int acpi_enabled = 1;
172 static int no_reboot;
175 int graphic_rotate = 0;
176 const char *watchdog;
177 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
180 const char *qemu_name;
183 unsigned int nb_prom_envs = 0;
184 const char *prom_envs[MAX_PROM_ENVS];
187 uint8_t *boot_splash_filedata;
188 int only_migratable; /* turn it off unless user states otherwise */
189 bool wakeup_suspend_enabled;
191 int icount_align_option;
193 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
207 enum xen_mode xen_mode = XEN_EMULATE;
208 bool xen_domid_restrict;
210 static int has_defaults = 1;
211 static int default_serial = 1;
212 static int default_parallel = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 { .driver = "ati-vga", .flag = &default_vga },
243 static QemuOptsList qemu_rtc_opts = {
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
250 .type = QEMU_OPT_STRING,
253 .type = QEMU_OPT_STRING,
256 .type = QEMU_OPT_STRING,
258 { /* end of list */ }
262 static QemuOptsList qemu_option_rom_opts = {
263 .name = "option-rom",
264 .implied_opt_name = "romfile",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
269 .type = QEMU_OPT_NUMBER,
272 .type = QEMU_OPT_STRING,
274 { /* end of list */ }
278 static QemuOptsList qemu_machine_opts = {
280 .implied_opt_name = "type",
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
285 * no elements => accept any
286 * sanity checking will happen later
287 * when setting machine properties
293 static QemuOptsList qemu_accel_opts = {
295 .implied_opt_name = "accel",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
301 .type = QEMU_OPT_STRING,
302 .help = "Select the type of accelerator",
306 .type = QEMU_OPT_STRING,
307 .help = "Enable/disable multi-threaded TCG",
309 { /* end of list */ }
313 static QemuOptsList qemu_boot_opts = {
315 .implied_opt_name = "order",
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
321 .type = QEMU_OPT_STRING,
324 .type = QEMU_OPT_STRING,
327 .type = QEMU_OPT_BOOL,
330 .type = QEMU_OPT_STRING,
332 .name = "splash-time",
333 .type = QEMU_OPT_NUMBER,
335 .name = "reboot-timeout",
336 .type = QEMU_OPT_NUMBER,
339 .type = QEMU_OPT_BOOL,
345 static QemuOptsList qemu_add_fd_opts = {
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
351 .type = QEMU_OPT_NUMBER,
352 .help = "file descriptor of which a duplicate is added to fd set",
355 .type = QEMU_OPT_NUMBER,
356 .help = "ID of the fd set to add fd to",
359 .type = QEMU_OPT_STRING,
360 .help = "free-form string used to describe fd",
362 { /* end of list */ }
366 static QemuOptsList qemu_object_opts = {
368 .implied_opt_name = "qom-type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
375 static QemuOptsList qemu_tpmdev_opts = {
377 .implied_opt_name = "type",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
380 /* options are defined in the TPM backends */
381 { /* end of list */ }
385 static QemuOptsList qemu_realtime_opts = {
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
391 .type = QEMU_OPT_BOOL,
393 { /* end of list */ }
397 static QemuOptsList qemu_overcommit_opts = {
398 .name = "overcommit",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
403 .type = QEMU_OPT_BOOL,
407 .type = QEMU_OPT_BOOL,
409 { /* end of list */ }
413 static QemuOptsList qemu_msg_opts = {
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
419 .type = QEMU_OPT_BOOL,
421 { /* end of list */ }
425 static QemuOptsList qemu_name_opts = {
427 .implied_opt_name = "guest",
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
433 .type = QEMU_OPT_STRING,
434 .help = "Sets the name of the guest.\n"
435 "This name will be displayed in the SDL window caption.\n"
436 "The name will also be used for the VNC server",
439 .type = QEMU_OPT_STRING,
440 .help = "Sets the name of the QEMU process, as shown in top etc",
442 .name = "debug-threads",
443 .type = QEMU_OPT_BOOL,
444 .help = "When enabled, name the individual threads; defaults off.\n"
445 "NOTE: The thread names are for debugging and not a\n"
448 { /* End of list */ }
452 static QemuOptsList qemu_mem_opts = {
454 .implied_opt_name = "size",
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
460 .type = QEMU_OPT_SIZE,
464 .type = QEMU_OPT_NUMBER,
468 .type = QEMU_OPT_SIZE,
470 { /* end of list */ }
474 static QemuOptsList qemu_icount_opts = {
476 .implied_opt_name = "shift",
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
482 .type = QEMU_OPT_STRING,
485 .type = QEMU_OPT_BOOL,
488 .type = QEMU_OPT_BOOL,
491 .type = QEMU_OPT_STRING,
494 .type = QEMU_OPT_STRING,
496 .name = "rrsnapshot",
497 .type = QEMU_OPT_STRING,
499 { /* end of list */ }
503 static QemuOptsList qemu_semihosting_config_opts = {
504 .name = "semihosting-config",
505 .implied_opt_name = "enable",
506 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
510 .type = QEMU_OPT_BOOL,
513 .type = QEMU_OPT_STRING,
516 .type = QEMU_OPT_STRING,
518 { /* end of list */ }
522 static QemuOptsList qemu_fw_cfg_opts = {
524 .implied_opt_name = "name",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
529 .type = QEMU_OPT_STRING,
530 .help = "Sets the fw_cfg name of the blob to be inserted",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets the name of the file from which "
535 "the fw_cfg blob will be loaded",
538 .type = QEMU_OPT_STRING,
539 .help = "Sets content of the blob to be inserted from a string",
541 { /* end of list */ }
546 * Get machine options
548 * Returns: machine options (never null).
550 QemuOpts *qemu_get_machine_opts(void)
552 return qemu_find_opts_singleton("machine");
555 const char *qemu_get_vm_name(void)
560 static void res_free(void)
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
566 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
568 const char *driver = qemu_opt_get(opts, "driver");
573 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
574 if (strcmp(default_list[i].driver, driver) != 0)
576 *(default_list[i].flag) = 0;
581 /***********************************************************/
584 static RunState current_run_state = RUN_STATE_PRECONFIG;
586 /* We use RUN_STATE__MAX but any invalid value will do */
587 static RunState vmstop_requested = RUN_STATE__MAX;
588 static QemuMutex vmstop_lock;
593 } RunStateTransition;
595 static const RunStateTransition runstate_transitions_def[] = {
597 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
598 /* Early switch to inmigrate state to allow -incoming CLI option work
599 * as it used to. TODO: delay actual switching to inmigrate state to
600 * the point after machine is built and remove this hack.
602 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
608 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
610 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
613 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
615 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
618 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
625 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
626 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
629 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
630 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PAUSED, RUN_STATE_COLO},
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
649 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
650 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
652 { RUN_STATE_COLO, RUN_STATE_RUNNING },
654 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
655 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
657 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
658 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
661 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
662 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
663 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
664 { RUN_STATE_RUNNING, RUN_STATE_COLO},
666 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
672 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
673 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
674 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
675 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
679 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
680 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
688 { RUN_STATE__MAX, RUN_STATE__MAX },
691 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
693 bool runstate_check(RunState state)
695 return current_run_state == state;
698 bool runstate_store(char *str, size_t size)
700 const char *state = RunState_str(current_run_state);
701 size_t len = strlen(state) + 1;
706 memcpy(str, state, len);
710 static void runstate_init(void)
712 const RunStateTransition *p;
714 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
715 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
716 runstate_valid_transitions[p->from][p->to] = true;
719 qemu_mutex_init(&vmstop_lock);
722 /* This function will abort() on invalid state transitions */
723 void runstate_set(RunState new_state)
725 assert(new_state < RUN_STATE__MAX);
727 trace_runstate_set(current_run_state, RunState_str(current_run_state),
728 new_state, RunState_str(new_state));
730 if (current_run_state == new_state) {
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
741 current_run_state = new_state;
744 int runstate_is_running(void)
746 return runstate_check(RUN_STATE_RUNNING);
749 bool runstate_needs_reset(void)
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
755 StatusInfo *qmp_query_status(Error **errp)
757 StatusInfo *info = g_malloc0(sizeof(*info));
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
766 bool qemu_vmstop_requested(RunState *r)
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
775 void qemu_system_vmstop_request_prepare(void)
777 qemu_mutex_lock(&vmstop_lock);
780 void qemu_system_vmstop_request(RunState state)
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
787 /***********************************************************/
788 /* RTC reference time/date access */
789 static time_t qemu_ref_timedate(QEMUClockType clock)
791 time_t value = qemu_clock_get_ms(clock) / 1000;
793 case QEMU_CLOCK_REALTIME:
794 value -= rtc_realtime_clock_offset;
796 case QEMU_CLOCK_VIRTUAL:
797 value += rtc_ref_start_datetime;
799 case QEMU_CLOCK_HOST:
800 if (rtc_base_type == RTC_BASE_DATETIME) {
801 value -= rtc_host_datetime_offset;
810 void qemu_get_timedate(struct tm *tm, int offset)
812 time_t ti = qemu_ref_timedate(rtc_clock);
816 switch (rtc_base_type) {
817 case RTC_BASE_DATETIME:
821 case RTC_BASE_LOCALTIME:
822 localtime_r(&ti, tm);
827 int qemu_timedate_diff(struct tm *tm)
831 switch (rtc_base_type) {
832 case RTC_BASE_DATETIME:
834 seconds = mktimegm(tm);
836 case RTC_BASE_LOCALTIME:
839 tmp.tm_isdst = -1; /* use timezone to figure it out */
840 seconds = mktime(&tmp);
847 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
850 static void configure_rtc_base_datetime(const char *startdate)
852 time_t rtc_start_datetime;
855 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
856 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
858 } else if (sscanf(startdate, "%d-%d-%d",
859 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
868 rtc_start_datetime = mktimegm(&tm);
869 if (rtc_start_datetime == -1) {
871 error_report("invalid datetime format");
872 error_printf("valid formats: "
873 "'2006-06-17T16:01:21' or '2006-06-17'\n");
876 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
877 rtc_ref_start_datetime = rtc_start_datetime;
880 static void configure_rtc(QemuOpts *opts)
885 rtc_clock = QEMU_CLOCK_HOST;
886 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
887 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
889 value = qemu_opt_get(opts, "base");
891 if (!strcmp(value, "utc")) {
892 rtc_base_type = RTC_BASE_UTC;
893 } else if (!strcmp(value, "localtime")) {
894 Error *blocker = NULL;
895 rtc_base_type = RTC_BASE_LOCALTIME;
896 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
897 "-rtc base=localtime");
898 replay_add_blocker(blocker);
900 rtc_base_type = RTC_BASE_DATETIME;
901 configure_rtc_base_datetime(value);
904 value = qemu_opt_get(opts, "clock");
906 if (!strcmp(value, "host")) {
907 rtc_clock = QEMU_CLOCK_HOST;
908 } else if (!strcmp(value, "rt")) {
909 rtc_clock = QEMU_CLOCK_REALTIME;
910 } else if (!strcmp(value, "vm")) {
911 rtc_clock = QEMU_CLOCK_VIRTUAL;
913 error_report("invalid option value '%s'", value);
917 value = qemu_opt_get(opts, "driftfix");
919 if (!strcmp(value, "slew")) {
920 static GlobalProperty slew_lost_ticks = {
921 .driver = "mc146818rtc",
922 .property = "lost_tick_policy",
926 qdev_prop_register_global(&slew_lost_ticks);
927 } else if (!strcmp(value, "none")) {
928 /* discard is default */
930 error_report("invalid option value '%s'", value);
936 /***********************************************************/
937 /* Bluetooth support */
940 static struct HCIInfo *hci_table[MAX_NICS];
942 struct HCIInfo *qemu_next_hci(void)
944 if (cur_hci == nb_hcis)
947 return hci_table[cur_hci++];
950 static int bt_hci_parse(const char *str)
955 if (nb_hcis >= MAX_NICS) {
956 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
969 bdaddr.b[5] = 0x56 + nb_hcis;
970 hci->bdaddr_set(hci, bdaddr.b);
972 hci_table[nb_hcis++] = hci;
977 static void bt_vhci_add(int vlan_id)
979 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
982 warn_report("adding a VHCI to an empty scatternet %i",
985 bt_vhci_init(bt_new_hci(vlan));
988 static struct bt_device_s *bt_device_add(const char *opt)
990 struct bt_scatternet_s *vlan;
992 char *endp = strstr(opt, ",vlan=");
993 int len = (endp ? endp - opt : strlen(opt)) + 1;
996 pstrcpy(devname, MIN(sizeof(devname), len), opt);
999 vlan_id = strtol(endp + 6, &endp, 0);
1001 error_report("unrecognised bluetooth vlan Id");
1006 vlan = qemu_find_bt_vlan(vlan_id);
1009 warn_report("adding a slave device to an empty scatternet %i",
1012 if (!strcmp(devname, "keyboard"))
1013 return bt_keyboard_init(vlan);
1015 error_report("unsupported bluetooth device '%s'", devname);
1019 static int bt_parse(const char *opt)
1021 const char *endp, *p;
1024 if (strstart(opt, "hci", &endp)) {
1025 if (!*endp || *endp == ',') {
1027 if (!strstart(endp, ",vlan=", 0))
1030 return bt_hci_parse(opt);
1032 } else if (strstart(opt, "vhci", &endp)) {
1033 if (!*endp || *endp == ',') {
1035 if (strstart(endp, ",vlan=", &p)) {
1036 vlan = strtol(p, (char **) &endp, 0);
1038 error_report("bad scatternet '%s'", p);
1042 error_report("bad parameter '%s'", endp + 1);
1051 } else if (strstart(opt, "device:", &endp))
1052 return !bt_device_add(endp);
1054 error_report("bad bluetooth parameter '%s'", opt);
1058 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1060 const char *proc_name;
1062 if (qemu_opt_get(opts, "debug-threads")) {
1063 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1065 qemu_name = qemu_opt_get(opts, "guest");
1067 proc_name = qemu_opt_get(opts, "process");
1069 os_set_proc_name(proc_name);
1075 bool defaults_enabled(void)
1077 return has_defaults;
1081 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1083 int fd, dupfd, flags;
1085 const char *fd_opaque = NULL;
1088 fd = qemu_opt_get_number(opts, "fd", -1);
1089 fdset_id = qemu_opt_get_number(opts, "set", -1);
1090 fd_opaque = qemu_opt_get(opts, "opaque");
1093 error_setg(errp, "fd option is required and must be non-negative");
1097 if (fd <= STDERR_FILENO) {
1098 error_setg(errp, "fd cannot be a standard I/O stream");
1103 * All fds inherited across exec() necessarily have FD_CLOEXEC
1104 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1106 flags = fcntl(fd, F_GETFD);
1107 if (flags == -1 || (flags & FD_CLOEXEC)) {
1108 error_setg(errp, "fd is not valid or already in use");
1113 error_setg(errp, "set option is required and must be non-negative");
1117 #ifdef F_DUPFD_CLOEXEC
1118 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1122 qemu_set_cloexec(dupfd);
1126 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1130 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1131 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1138 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1142 fd = qemu_opt_get_number(opts, "fd", -1);
1149 /***********************************************************/
1150 /* QEMU Block devices */
1152 #define HD_OPTS "media=disk"
1153 #define CDROM_OPTS "media=cdrom"
1155 #define PFLASH_OPTS ""
1159 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1161 BlockInterfaceType *block_default_type = opaque;
1163 return drive_new(opts, *block_default_type, errp) == NULL;
1166 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1168 if (qemu_opt_get(opts, "snapshot") == NULL) {
1169 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1174 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1175 int index, const char *optstr)
1180 if (!enable || drive_get_by_index(type, index)) {
1184 opts = drive_add(type, index, NULL, optstr);
1186 drive_enable_snapshot(NULL, opts, NULL);
1189 dinfo = drive_new(opts, type, &error_abort);
1190 dinfo->is_default = true;
1194 typedef struct BlockdevOptionsQueueEntry {
1195 BlockdevOptions *bdo;
1197 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1198 } BlockdevOptionsQueueEntry;
1200 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1202 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1203 MachineClass *machine_class, int snapshot)
1206 * If the currently selected machine wishes to override the
1207 * units-per-bus property of its default HBA interface type, do so
1210 if (machine_class->units_per_default_bus) {
1211 override_max_devs(machine_class->block_default_type,
1212 machine_class->units_per_default_bus);
1215 /* open the virtual block devices */
1216 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1217 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1219 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1220 loc_push_restore(&bdo->loc);
1221 qmp_blockdev_add(bdo->bdo, &error_fatal);
1223 qapi_free_BlockdevOptions(bdo->bdo);
1226 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1227 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1230 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1231 &machine_class->block_default_type, &error_fatal)) {
1232 /* We printed help */
1236 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1238 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1239 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1243 static QemuOptsList qemu_smp_opts = {
1245 .implied_opt_name = "cpus",
1246 .merge_lists = true,
1247 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1251 .type = QEMU_OPT_NUMBER,
1254 .type = QEMU_OPT_NUMBER,
1257 .type = QEMU_OPT_NUMBER,
1260 .type = QEMU_OPT_NUMBER,
1263 .type = QEMU_OPT_NUMBER,
1265 { /*End of list */ }
1269 static void smp_parse(QemuOpts *opts)
1272 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1273 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1274 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1275 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1277 /* compute missing values, prefer sockets over cores over threads */
1278 if (cpus == 0 || sockets == 0) {
1279 cores = cores > 0 ? cores : 1;
1280 threads = threads > 0 ? threads : 1;
1282 sockets = sockets > 0 ? sockets : 1;
1283 cpus = cores * threads * sockets;
1285 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1286 sockets = max_cpus / (cores * threads);
1288 } else if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 cores = cores > 0 ? cores : 1;
1292 } else if (threads == 0) {
1293 threads = cpus / (cores * sockets);
1294 threads = threads > 0 ? threads : 1;
1295 } else if (sockets * cores * threads < cpus) {
1296 error_report("cpu topology: "
1297 "sockets (%u) * cores (%u) * threads (%u) < "
1299 sockets, cores, threads, cpus);
1303 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1305 if (max_cpus < cpus) {
1306 error_report("maxcpus must be equal to or greater than smp");
1310 if (sockets * cores * threads > max_cpus) {
1311 error_report("cpu topology: "
1312 "sockets (%u) * cores (%u) * threads (%u) > "
1314 sockets, cores, threads, max_cpus);
1318 if (sockets * cores * threads != max_cpus) {
1319 warn_report("Invalid CPU topology deprecated: "
1320 "sockets (%u) * cores (%u) * threads (%u) "
1322 sockets, cores, threads, max_cpus);
1327 smp_threads = threads;
1331 Error *blocker = NULL;
1332 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1333 replay_add_blocker(blocker);
1337 static void realtime_init(void)
1340 if (os_mlock() < 0) {
1341 error_report("locking memory failed");
1348 static void configure_msg(QemuOpts *opts)
1350 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1353 /***********************************************************/
1356 typedef struct SemihostingConfig {
1358 SemihostingTarget target;
1361 const char *cmdline; /* concatenated argv */
1362 } SemihostingConfig;
1364 static SemihostingConfig semihosting;
1366 bool semihosting_enabled(void)
1368 return semihosting.enabled;
1371 SemihostingTarget semihosting_get_target(void)
1373 return semihosting.target;
1376 const char *semihosting_get_arg(int i)
1378 if (i >= semihosting.argc) {
1381 return semihosting.argv[i];
1384 int semihosting_get_argc(void)
1386 return semihosting.argc;
1389 const char *semihosting_get_cmdline(void)
1391 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1392 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1394 return semihosting.cmdline;
1397 static int add_semihosting_arg(void *opaque,
1398 const char *name, const char *val,
1401 SemihostingConfig *s = opaque;
1402 if (strcmp(name, "arg") == 0) {
1404 /* one extra element as g_strjoinv() expects NULL-terminated array */
1405 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1406 s->argv[s->argc - 1] = val;
1407 s->argv[s->argc] = NULL;
1412 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1413 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1418 add_semihosting_arg(&semihosting, "arg", file, NULL);
1420 /* split -append and initialize argv[1..n] */
1421 cmd_token = strtok(g_strdup(cmd), " ");
1423 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1424 cmd_token = strtok(NULL, " ");
1428 /* Now we still need this for compatibility with XEN. */
1429 bool has_igd_gfx_passthru;
1430 static void igd_gfx_passthru(void)
1432 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1435 /***********************************************************/
1438 static int usb_device_add(const char *devname)
1440 USBDevice *dev = NULL;
1442 if (!machine_usb(current_machine)) {
1446 dev = usbdevice_create(devname);
1453 static int usb_parse(const char *cmdline)
1456 r = usb_device_add(cmdline);
1458 error_report("could not add USB device '%s'", cmdline);
1463 /***********************************************************/
1464 /* machine registration */
1466 MachineState *current_machine;
1468 static MachineClass *find_machine(const char *name, GSList *machines)
1472 for (el = machines; el; el = el->next) {
1473 MachineClass *mc = el->data;
1475 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1483 static MachineClass *find_default_machine(GSList *machines)
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *mc = el->data;
1490 if (mc->is_default) {
1498 MachineInfoList *qmp_query_machines(Error **errp)
1500 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1501 MachineInfoList *mach_list = NULL;
1503 for (el = machines; el; el = el->next) {
1504 MachineClass *mc = el->data;
1505 MachineInfoList *entry;
1508 info = g_malloc0(sizeof(*info));
1509 if (mc->is_default) {
1510 info->has_is_default = true;
1511 info->is_default = true;
1515 info->has_alias = true;
1516 info->alias = g_strdup(mc->alias);
1519 info->name = g_strdup(mc->name);
1520 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1521 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1523 entry = g_malloc0(sizeof(*entry));
1524 entry->value = info;
1525 entry->next = mach_list;
1529 g_slist_free(machines);
1533 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1535 ObjectProperty *prop;
1536 ObjectPropertyIterator iter;
1538 if (!qemu_opt_has_help_opt(opts)) {
1542 object_property_iter_init(&iter, OBJECT(machine));
1543 while ((prop = object_property_iter_next(&iter))) {
1548 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1549 prop->name, prop->type);
1550 if (prop->description) {
1551 printf(" (%s)\n", prop->description);
1560 struct vm_change_state_entry {
1561 VMChangeStateHandler *cb;
1563 QLIST_ENTRY (vm_change_state_entry) entries;
1566 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1568 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1571 VMChangeStateEntry *e;
1573 e = g_malloc0(sizeof (*e));
1577 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1581 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1583 QLIST_REMOVE (e, entries);
1587 void vm_state_notify(int running, RunState state)
1589 VMChangeStateEntry *e, *next;
1591 trace_vm_state_notify(running, state, RunState_str(state));
1593 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1594 e->cb(e->opaque, running, state);
1598 static ShutdownCause reset_requested;
1599 static ShutdownCause shutdown_requested;
1600 static int shutdown_signal;
1601 static pid_t shutdown_pid;
1602 static int powerdown_requested;
1603 static int debug_requested;
1604 static int suspend_requested;
1605 static bool preconfig_exit_requested = true;
1606 static WakeupReason wakeup_reason;
1607 static NotifierList powerdown_notifiers =
1608 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1609 static NotifierList suspend_notifiers =
1610 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1611 static NotifierList wakeup_notifiers =
1612 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1613 static NotifierList shutdown_notifiers =
1614 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1615 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1617 ShutdownCause qemu_shutdown_requested_get(void)
1619 return shutdown_requested;
1622 ShutdownCause qemu_reset_requested_get(void)
1624 return reset_requested;
1627 static int qemu_shutdown_requested(void)
1629 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1632 static void qemu_kill_report(void)
1634 if (!qtest_driver() && shutdown_signal) {
1635 if (shutdown_pid == 0) {
1636 /* This happens for eg ^C at the terminal, so it's worth
1637 * avoiding printing an odd message in that case.
1639 error_report("terminating on signal %d", shutdown_signal);
1641 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1643 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1644 shutdown_signal, shutdown_pid,
1645 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1646 g_free(shutdown_cmd);
1648 shutdown_signal = 0;
1652 static ShutdownCause qemu_reset_requested(void)
1654 ShutdownCause r = reset_requested;
1656 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1657 reset_requested = SHUTDOWN_CAUSE_NONE;
1660 return SHUTDOWN_CAUSE_NONE;
1663 static int qemu_suspend_requested(void)
1665 int r = suspend_requested;
1666 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1667 suspend_requested = 0;
1673 static WakeupReason qemu_wakeup_requested(void)
1675 return wakeup_reason;
1678 static int qemu_powerdown_requested(void)
1680 int r = powerdown_requested;
1681 powerdown_requested = 0;
1685 static int qemu_debug_requested(void)
1687 int r = debug_requested;
1688 debug_requested = 0;
1692 void qemu_exit_preconfig_request(void)
1694 preconfig_exit_requested = true;
1698 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1700 void qemu_system_reset(ShutdownCause reason)
1704 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1706 cpu_synchronize_all_states();
1708 if (mc && mc->reset) {
1711 qemu_devices_reset();
1713 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1714 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1716 cpu_synchronize_all_post_reset();
1719 void qemu_system_guest_panicked(GuestPanicInformation *info)
1721 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1724 current_cpu->crash_occurred = true;
1726 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1728 vm_stop(RUN_STATE_GUEST_PANICKED);
1730 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1732 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1736 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1737 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1738 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1739 info->u.hyper_v.arg1,
1740 info->u.hyper_v.arg2,
1741 info->u.hyper_v.arg3,
1742 info->u.hyper_v.arg4,
1743 info->u.hyper_v.arg5);
1744 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1745 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1746 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1748 S390CrashReason_str(info->u.s390.reason),
1749 info->u.s390.psw_mask,
1750 info->u.s390.psw_addr);
1752 qapi_free_GuestPanicInformation(info);
1756 void qemu_system_reset_request(ShutdownCause reason)
1758 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1759 shutdown_requested = reason;
1761 reset_requested = reason;
1764 qemu_notify_event();
1767 static void qemu_system_suspend(void)
1770 notifier_list_notify(&suspend_notifiers, NULL);
1771 runstate_set(RUN_STATE_SUSPENDED);
1772 qapi_event_send_suspend();
1775 void qemu_system_suspend_request(void)
1777 if (runstate_check(RUN_STATE_SUSPENDED)) {
1780 suspend_requested = 1;
1782 qemu_notify_event();
1785 void qemu_register_suspend_notifier(Notifier *notifier)
1787 notifier_list_add(&suspend_notifiers, notifier);
1790 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1792 trace_system_wakeup_request(reason);
1794 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1796 "Unable to wake up: guest is not in suspended state");
1799 if (!(wakeup_reason_mask & (1 << reason))) {
1802 runstate_set(RUN_STATE_RUNNING);
1803 wakeup_reason = reason;
1804 qemu_notify_event();
1807 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1810 wakeup_reason_mask |= (1 << reason);
1812 wakeup_reason_mask &= ~(1 << reason);
1816 void qemu_register_wakeup_notifier(Notifier *notifier)
1818 notifier_list_add(&wakeup_notifiers, notifier);
1821 void qemu_register_wakeup_support(void)
1823 wakeup_suspend_enabled = true;
1826 bool qemu_wakeup_suspend_enabled(void)
1828 return wakeup_suspend_enabled;
1831 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1833 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1834 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1839 void qemu_system_killed(int signal, pid_t pid)
1841 shutdown_signal = signal;
1845 /* Cannot call qemu_system_shutdown_request directly because
1846 * we are in a signal handler.
1848 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1849 qemu_notify_event();
1852 void qemu_system_shutdown_request(ShutdownCause reason)
1854 trace_qemu_system_shutdown_request(reason);
1855 replay_shutdown_request(reason);
1856 shutdown_requested = reason;
1857 qemu_notify_event();
1860 static void qemu_system_powerdown(void)
1862 qapi_event_send_powerdown();
1863 notifier_list_notify(&powerdown_notifiers, NULL);
1866 static void qemu_system_shutdown(ShutdownCause cause)
1868 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1869 notifier_list_notify(&shutdown_notifiers, &cause);
1872 void qemu_system_powerdown_request(void)
1874 trace_qemu_system_powerdown_request();
1875 powerdown_requested = 1;
1876 qemu_notify_event();
1879 void qemu_register_powerdown_notifier(Notifier *notifier)
1881 notifier_list_add(&powerdown_notifiers, notifier);
1884 void qemu_register_shutdown_notifier(Notifier *notifier)
1886 notifier_list_add(&shutdown_notifiers, notifier);
1889 void qemu_system_debug_request(void)
1891 debug_requested = 1;
1892 qemu_notify_event();
1895 static bool main_loop_should_exit(void)
1898 ShutdownCause request;
1900 if (preconfig_exit_requested) {
1901 if (runstate_check(RUN_STATE_PRECONFIG)) {
1902 runstate_set(RUN_STATE_PRELAUNCH);
1904 preconfig_exit_requested = false;
1907 if (qemu_debug_requested()) {
1908 vm_stop(RUN_STATE_DEBUG);
1910 if (qemu_suspend_requested()) {
1911 qemu_system_suspend();
1913 request = qemu_shutdown_requested();
1916 qemu_system_shutdown(request);
1918 vm_stop(RUN_STATE_SHUTDOWN);
1923 request = qemu_reset_requested();
1926 qemu_system_reset(request);
1928 if (!runstate_check(RUN_STATE_RUNNING) &&
1929 !runstate_check(RUN_STATE_INMIGRATE)) {
1930 runstate_set(RUN_STATE_PRELAUNCH);
1933 if (qemu_wakeup_requested()) {
1935 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1936 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1937 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1939 qapi_event_send_wakeup();
1941 if (qemu_powerdown_requested()) {
1942 qemu_system_powerdown();
1944 if (qemu_vmstop_requested(&r)) {
1950 static void main_loop(void)
1952 #ifdef CONFIG_PROFILER
1955 while (!main_loop_should_exit()) {
1956 #ifdef CONFIG_PROFILER
1957 ti = profile_getclock();
1959 main_loop_wait(false);
1960 #ifdef CONFIG_PROFILER
1961 dev_time += profile_getclock() - ti;
1966 static void version(void)
1968 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1969 QEMU_COPYRIGHT "\n");
1972 static void help(int exitcode)
1975 printf("usage: %s [options] [disk_image]\n\n"
1976 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1977 error_get_progname());
1979 #define QEMU_OPTIONS_GENERATE_HELP
1980 #include "qemu-options-wrapper.h"
1982 printf("\nDuring emulation, the following keys are useful:\n"
1983 "ctrl-alt-f toggle full screen\n"
1984 "ctrl-alt-n switch to virtual console 'n'\n"
1985 "ctrl-alt toggle mouse and keyboard grab\n"
1987 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1989 QEMU_HELP_BOTTOM "\n");
1994 #define HAS_ARG 0x0001
1996 typedef struct QEMUOption {
2003 static const QEMUOption qemu_options[] = {
2004 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2005 #define QEMU_OPTIONS_GENERATE_OPTIONS
2006 #include "qemu-options-wrapper.h"
2010 typedef struct VGAInterfaceInfo {
2011 const char *opt_name; /* option name */
2012 const char *name; /* human-readable name */
2013 /* Class names indicating that support is available.
2014 * If no class is specified, the interface is always available */
2015 const char *class_names[2];
2018 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2024 .name = "standard VGA",
2025 .class_names = { "VGA", "isa-vga" },
2028 .opt_name = "cirrus",
2029 .name = "Cirrus VGA",
2030 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2033 .opt_name = "vmware",
2034 .name = "VMWare SVGA",
2035 .class_names = { "vmware-svga" },
2038 .opt_name = "virtio",
2039 .name = "Virtio VGA",
2040 .class_names = { "virtio-vga" },
2045 .class_names = { "qxl-vga" },
2049 .name = "TCX framebuffer",
2050 .class_names = { "SUNW,tcx" },
2054 .name = "CG3 framebuffer",
2055 .class_names = { "cgthree" },
2058 .opt_name = "xenfb",
2062 static bool vga_interface_available(VGAInterfaceType t)
2064 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2066 assert(t < VGA_TYPE_MAX);
2067 return !ti->class_names[0] ||
2068 object_class_by_name(ti->class_names[0]) ||
2069 object_class_by_name(ti->class_names[1]);
2073 get_default_vga_model(const MachineClass *machine_class)
2075 if (machine_class->default_display) {
2076 return machine_class->default_display;
2077 } else if (vga_interface_available(VGA_CIRRUS)) {
2079 } else if (vga_interface_available(VGA_STD)) {
2086 static void select_vgahw(const MachineClass *machine_class, const char *p)
2091 if (g_str_equal(p, "help")) {
2092 const char *def = get_default_vga_model(machine_class);
2094 for (t = 0; t < VGA_TYPE_MAX; t++) {
2095 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2097 if (vga_interface_available(t) && ti->opt_name) {
2098 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
2099 g_str_equal(ti->opt_name, def) ? " (default)" : "");
2105 assert(vga_interface_type == VGA_NONE);
2106 for (t = 0; t < VGA_TYPE_MAX; t++) {
2107 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2108 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2109 if (!vga_interface_available(t)) {
2110 error_report("%s not available", ti->name);
2113 vga_interface_type = t;
2117 if (t == VGA_TYPE_MAX) {
2119 error_report("unknown vga type: %s", p);
2123 const char *nextopt;
2125 if (strstart(opts, ",retrace=", &nextopt)) {
2127 if (strstart(opts, "dumb", &nextopt))
2128 vga_retrace_method = VGA_RETRACE_DUMB;
2129 else if (strstart(opts, "precise", &nextopt))
2130 vga_retrace_method = VGA_RETRACE_PRECISE;
2131 else goto invalid_vga;
2132 } else goto invalid_vga;
2137 static void parse_display_qapi(const char *optarg)
2139 DisplayOptions *opts;
2142 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2144 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2145 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2147 qapi_free_DisplayOptions(opts);
2151 DisplayOptions *qmp_query_display_options(Error **errp)
2153 return QAPI_CLONE(DisplayOptions, &dpy);
2156 static void parse_display(const char *p)
2160 if (strstart(p, "sdl", &opts)) {
2162 * sdl DisplayType needs hand-crafted parser instead of
2163 * parse_display_qapi() due to some options not in
2164 * DisplayOptions, specifically:
2166 * Already deprecated.
2167 * - ctrl_grab + alt_grab
2168 * Not clear yet what happens to them long-term. Should
2169 * replaced by something better or deprecated and dropped.
2171 dpy.type = DISPLAY_TYPE_SDL;
2173 const char *nextopt;
2175 if (strstart(opts, ",alt_grab=", &nextopt)) {
2177 if (strstart(opts, "on", &nextopt)) {
2179 } else if (strstart(opts, "off", &nextopt)) {
2182 goto invalid_sdl_args;
2184 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2186 if (strstart(opts, "on", &nextopt)) {
2188 } else if (strstart(opts, "off", &nextopt)) {
2191 goto invalid_sdl_args;
2193 } else if (strstart(opts, ",window_close=", &nextopt)) {
2195 dpy.has_window_close = true;
2196 if (strstart(opts, "on", &nextopt)) {
2197 dpy.window_close = true;
2198 } else if (strstart(opts, "off", &nextopt)) {
2199 dpy.window_close = false;
2201 goto invalid_sdl_args;
2203 } else if (strstart(opts, ",gl=", &nextopt)) {
2206 if (strstart(opts, "on", &nextopt)) {
2207 dpy.gl = DISPLAYGL_MODE_ON;
2208 } else if (strstart(opts, "core", &nextopt)) {
2209 dpy.gl = DISPLAYGL_MODE_CORE;
2210 } else if (strstart(opts, "es", &nextopt)) {
2211 dpy.gl = DISPLAYGL_MODE_ES;
2212 } else if (strstart(opts, "off", &nextopt)) {
2213 dpy.gl = DISPLAYGL_MODE_OFF;
2215 goto invalid_sdl_args;
2219 error_report("invalid SDL option string");
2224 } else if (strstart(p, "vnc", &opts)) {
2226 * vnc isn't a (local) DisplayType but a protocol for remote
2230 vnc_parse(opts + 1, &error_fatal);
2232 error_report("VNC requires a display argument vnc=<display>");
2236 parse_display_qapi(p);
2240 char *qemu_find_file(int type, const char *name)
2246 /* Try the name as a straight path first */
2247 if (access(name, R_OK) == 0) {
2248 trace_load_file(name, name);
2249 return g_strdup(name);
2253 case QEMU_FILE_TYPE_BIOS:
2256 case QEMU_FILE_TYPE_KEYMAP:
2257 subdir = "keymaps/";
2263 for (i = 0; i < data_dir_idx; i++) {
2264 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2265 if (access(buf, R_OK) == 0) {
2266 trace_load_file(name, buf);
2274 static void qemu_add_data_dir(const char *path)
2281 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2284 for (i = 0; i < data_dir_idx; i++) {
2285 if (strcmp(data_dir[i], path) == 0) {
2286 return; /* duplicate */
2289 data_dir[data_dir_idx++] = g_strdup(path);
2292 static inline bool nonempty_str(const char *str)
2297 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2301 const char *name, *file, *str;
2302 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2304 if (fw_cfg == NULL) {
2305 error_setg(errp, "fw_cfg device not available");
2308 name = qemu_opt_get(opts, "name");
2309 file = qemu_opt_get(opts, "file");
2310 str = qemu_opt_get(opts, "string");
2312 /* we need name and either a file or the content string */
2313 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2314 error_setg(errp, "invalid argument(s)");
2317 if (nonempty_str(file) && nonempty_str(str)) {
2318 error_setg(errp, "file and string are mutually exclusive");
2321 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2322 error_setg(errp, "name too long (max. %d char)",
2323 FW_CFG_MAX_FILE_PATH - 1);
2326 if (strncmp(name, "opt/", 4) != 0) {
2327 warn_report("externally provided fw_cfg item names "
2328 "should be prefixed with \"opt/\"");
2330 if (nonempty_str(str)) {
2331 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2332 buf = g_memdup(str, size);
2335 if (!g_file_get_contents(file, &buf, &size, &err)) {
2336 error_setg(errp, "can't load %s: %s", file, err->message);
2341 /* For legacy, keep user files in a specific global order. */
2342 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2343 fw_cfg_add_file(fw_cfg, name, buf, size);
2344 fw_cfg_reset_order_override(fw_cfg);
2348 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2350 return qdev_device_help(opts);
2353 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2357 dev = qdev_device_add(opts, errp);
2361 object_unref(OBJECT(dev));
2365 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2367 Error *local_err = NULL;
2369 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2371 error_propagate(errp, local_err);
2379 #ifdef CONFIG_VIRTFS
2380 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2382 return qemu_fsdev_add(opts, errp);
2386 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2389 const char *chardev;
2393 mode = qemu_opt_get(opts, "mode");
2397 if (strcmp(mode, "readline") == 0) {
2398 flags = MONITOR_USE_READLINE;
2399 } else if (strcmp(mode, "control") == 0) {
2400 flags = MONITOR_USE_CONTROL;
2402 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2406 if (qemu_opt_get_bool(opts, "pretty", 0))
2407 flags |= MONITOR_USE_PRETTY;
2409 chardev = qemu_opt_get(opts, "chardev");
2411 error_report("chardev is required");
2414 chr = qemu_chr_find(chardev);
2416 error_setg(errp, "chardev \"%s\" not found", chardev);
2420 monitor_init(chr, flags);
2424 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2426 static int monitor_device_index = 0;
2431 if (strstart(optarg, "chardev:", &p)) {
2432 snprintf(label, sizeof(label), "%s", p);
2434 snprintf(label, sizeof(label), "compat_monitor%d",
2435 monitor_device_index);
2436 opts = qemu_chr_parse_compat(label, optarg, true);
2438 error_report("parse error: %s", optarg);
2443 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2444 qemu_opt_set(opts, "mode", mode, &error_abort);
2445 qemu_opt_set(opts, "chardev", label, &error_abort);
2446 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2447 monitor_device_index++;
2450 struct device_config {
2452 DEV_USB, /* -usbdevice */
2454 DEV_SERIAL, /* -serial */
2455 DEV_PARALLEL, /* -parallel */
2456 DEV_DEBUGCON, /* -debugcon */
2457 DEV_GDB, /* -gdb, -s */
2458 DEV_SCLP, /* s390 sclp */
2460 const char *cmdline;
2462 QTAILQ_ENTRY(device_config) next;
2465 static QTAILQ_HEAD(, device_config) device_configs =
2466 QTAILQ_HEAD_INITIALIZER(device_configs);
2468 static void add_device_config(int type, const char *cmdline)
2470 struct device_config *conf;
2472 conf = g_malloc0(sizeof(*conf));
2474 conf->cmdline = cmdline;
2475 loc_save(&conf->loc);
2476 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2479 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2481 struct device_config *conf;
2484 QTAILQ_FOREACH(conf, &device_configs, next) {
2485 if (conf->type != type)
2487 loc_push_restore(&conf->loc);
2488 rc = func(conf->cmdline);
2489 loc_pop(&conf->loc);
2497 static int serial_parse(const char *devname)
2499 int index = num_serial_hds;
2502 if (strcmp(devname, "none") == 0)
2504 snprintf(label, sizeof(label), "serial%d", index);
2505 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2507 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2508 if (!serial_hds[index]) {
2509 error_report("could not connect serial device"
2510 " to character backend '%s'", devname);
2517 Chardev *serial_hd(int i)
2520 if (i < num_serial_hds) {
2521 return serial_hds[i];
2526 int serial_max_hds(void)
2528 return num_serial_hds;
2531 static int parallel_parse(const char *devname)
2533 static int index = 0;
2536 if (strcmp(devname, "none") == 0)
2538 if (index == MAX_PARALLEL_PORTS) {
2539 error_report("too many parallel ports");
2542 snprintf(label, sizeof(label), "parallel%d", index);
2543 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2544 if (!parallel_hds[index]) {
2545 error_report("could not connect parallel device"
2546 " to character backend '%s'", devname);
2553 static int debugcon_parse(const char *devname)
2557 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2558 error_report("invalid character backend '%s'", devname);
2561 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2563 error_report("already have a debugcon device");
2566 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2567 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2571 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2573 const MachineClass *mc1 = a, *mc2 = b;
2576 if (mc1->family == NULL) {
2577 if (mc2->family == NULL) {
2578 /* Compare standalone machine types against each other; they sort
2579 * in increasing order.
2581 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2582 object_class_get_name(OBJECT_CLASS(mc2)));
2585 /* Standalone machine types sort after families. */
2589 if (mc2->family == NULL) {
2590 /* Families sort before standalone machine types. */
2594 /* Families sort between each other alphabetically increasingly. */
2595 res = strcmp(mc1->family, mc2->family);
2600 /* Within the same family, machine types sort in decreasing order. */
2601 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2602 object_class_get_name(OBJECT_CLASS(mc1)));
2605 static MachineClass *machine_parse(const char *name, GSList *machines)
2610 if (is_help_option(name)) {
2611 printf("Supported machines are:\n");
2612 machines = g_slist_sort(machines, machine_class_cmp);
2613 for (el = machines; el; el = el->next) {
2614 MachineClass *mc = el->data;
2616 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2618 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2619 mc->is_default ? " (default)" : "",
2620 mc->deprecation_reason ? " (deprecated)" : "");
2625 mc = find_machine(name, machines);
2627 error_report("unsupported machine type");
2628 error_printf("Use -machine help to list supported machines\n");
2634 void qemu_add_exit_notifier(Notifier *notify)
2636 notifier_list_add(&exit_notifiers, notify);
2639 void qemu_remove_exit_notifier(Notifier *notify)
2641 notifier_remove(notify);
2644 static void qemu_run_exit_notifiers(void)
2646 notifier_list_notify(&exit_notifiers, NULL);
2649 static const char *pid_file;
2650 static Notifier qemu_unlink_pidfile_notifier;
2652 static void qemu_unlink_pidfile(Notifier *n, void *data)
2659 bool machine_init_done;
2661 void qemu_add_machine_init_done_notifier(Notifier *notify)
2663 notifier_list_add(&machine_init_done_notifiers, notify);
2664 if (machine_init_done) {
2665 notify->notify(notify, NULL);
2669 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2671 notifier_remove(notify);
2674 static void qemu_run_machine_init_done_notifiers(void)
2676 machine_init_done = true;
2677 notifier_list_notify(&machine_init_done_notifiers, NULL);
2680 static const QEMUOption *lookup_opt(int argc, char **argv,
2681 const char **poptarg, int *poptind)
2683 const QEMUOption *popt;
2684 int optind = *poptind;
2685 char *r = argv[optind];
2688 loc_set_cmdline(argv, optind, 1);
2690 /* Treat --foo the same as -foo. */
2693 popt = qemu_options;
2696 error_report("invalid option");
2699 if (!strcmp(popt->name, r + 1))
2703 if (popt->flags & HAS_ARG) {
2704 if (optind >= argc) {
2705 error_report("requires an argument");
2708 optarg = argv[optind++];
2709 loc_set_cmdline(argv, optind - 2, 2);
2720 static MachineClass *select_machine(void)
2722 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2723 MachineClass *machine_class = find_default_machine(machines);
2728 loc_push_none(&loc);
2730 opts = qemu_get_machine_opts();
2731 qemu_opts_loc_restore(opts);
2733 optarg = qemu_opt_get(opts, "type");
2735 machine_class = machine_parse(optarg, machines);
2738 if (!machine_class) {
2739 error_report("No machine specified, and there is no default");
2740 error_printf("Use -machine help to list supported machines\n");
2745 g_slist_free(machines);
2746 return machine_class;
2749 static int machine_set_property(void *opaque,
2750 const char *name, const char *value,
2753 Object *obj = OBJECT(opaque);
2754 Error *local_err = NULL;
2757 if (strcmp(name, "type") == 0) {
2761 qom_name = g_strdup(name);
2762 for (p = qom_name; *p; p++) {
2768 object_property_parse(obj, value, qom_name, &local_err);
2772 error_propagate(errp, local_err);
2781 * Initial object creation happens before all other
2782 * QEMU data types are created. The majority of objects
2783 * can be created at this point. The rng-egd object
2784 * cannot be created here, as it depends on the chardev
2787 static bool object_create_initial(const char *type, QemuOpts *opts)
2791 if (is_help_option(type)) {
2794 printf("List of user creatable objects:\n");
2795 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2796 for (l = list; l != NULL; l = l->next) {
2797 ObjectClass *oc = OBJECT_CLASS(l->data);
2798 printf(" %s\n", object_class_get_name(oc));
2804 klass = object_class_by_name(type);
2805 if (klass && qemu_opt_has_help_opt(opts)) {
2806 ObjectPropertyIterator iter;
2807 ObjectProperty *prop;
2808 GPtrArray *array = g_ptr_array_new();
2811 object_class_property_iter_init(&iter, klass);
2812 while ((prop = object_property_iter_next(&iter))) {
2819 str = g_string_new(NULL);
2820 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2821 if (prop->description) {
2822 if (str->len < 24) {
2823 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2825 g_string_append_printf(str, " - %s", prop->description);
2827 g_ptr_array_add(array, g_string_free(str, false));
2829 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2830 if (array->len > 0) {
2831 printf("%s options:\n", type);
2833 printf("There are no options for %s.\n", type);
2835 for (i = 0; i < array->len; i++) {
2836 printf("%s\n", (char *)array->pdata[i]);
2838 g_ptr_array_set_free_func(array, g_free);
2839 g_ptr_array_free(array, true);
2843 if (g_str_equal(type, "rng-egd") ||
2844 g_str_has_prefix(type, "pr-manager-")) {
2848 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2849 if (g_str_equal(type, "cryptodev-vhost-user")) {
2855 * return false for concrete netfilters since
2856 * they depend on netdevs already existing
2858 if (g_str_equal(type, "filter-buffer") ||
2859 g_str_equal(type, "filter-dump") ||
2860 g_str_equal(type, "filter-mirror") ||
2861 g_str_equal(type, "filter-redirector") ||
2862 g_str_equal(type, "colo-compare") ||
2863 g_str_equal(type, "filter-rewriter") ||
2864 g_str_equal(type, "filter-replay")) {
2868 /* Memory allocation by backends needs to be done
2869 * after configure_accelerator() (due to the tcg_enabled()
2870 * checks at memory_region_init_*()).
2872 * Also, allocation of large amounts of memory may delay
2873 * chardev initialization for too long, and trigger timeouts
2874 * on software that waits for a monitor socket to be created
2877 if (g_str_has_prefix(type, "memory-backend-")) {
2886 * The remainder of object creation happens after the
2887 * creation of chardev, fsdev, net clients and device data types.
2889 static bool object_create_delayed(const char *type, QemuOpts *opts)
2891 return !object_create_initial(type, opts);
2895 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2899 const char *mem_str;
2900 const ram_addr_t default_ram_size = mc->default_ram_size;
2901 QemuOpts *opts = qemu_find_opts_singleton("memory");
2904 loc_push_none(&loc);
2905 qemu_opts_loc_restore(opts);
2908 mem_str = qemu_opt_get(opts, "size");
2911 error_report("missing 'size' option value");
2915 sz = qemu_opt_get_size(opts, "size", ram_size);
2917 /* Fix up legacy suffix-less format */
2918 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2919 uint64_t overflow_check = sz;
2922 if (sz / MiB != overflow_check) {
2923 error_report("too large 'size' option value");
2929 /* backward compatibility behaviour for case "-m 0" */
2931 sz = default_ram_size;
2934 sz = QEMU_ALIGN_UP(sz, 8192);
2936 if (ram_size != sz) {
2937 error_report("ram size too large");
2941 /* store value for the future use */
2942 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2943 *maxram_size = ram_size;
2945 if (qemu_opt_get(opts, "maxmem")) {
2948 sz = qemu_opt_get_size(opts, "maxmem", 0);
2949 slots = qemu_opt_get_number(opts, "slots", 0);
2950 if (sz < ram_size) {
2951 error_report("invalid value of -m option maxmem: "
2952 "maximum memory size (0x%" PRIx64 ") must be at least "
2953 "the initial memory size (0x" RAM_ADDR_FMT ")",
2956 } else if (slots && sz == ram_size) {
2957 error_report("invalid value of -m option maxmem: "
2958 "memory slots were specified but maximum memory size "
2959 "(0x%" PRIx64 ") is equal to the initial memory size "
2960 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2966 } else if (qemu_opt_get(opts, "slots")) {
2967 error_report("invalid -m option value: missing 'maxmem' option");
2974 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2978 g = g_malloc0(sizeof(*g));
2979 g->driver = qemu_opt_get(opts, "driver");
2980 g->property = qemu_opt_get(opts, "property");
2981 g->value = qemu_opt_get(opts, "value");
2982 qdev_prop_register_global(g);
2986 static int qemu_read_default_config_file(void)
2990 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2991 if (ret < 0 && ret != -ENOENT) {
2998 static void user_register_global_props(void)
3000 qemu_opts_foreach(qemu_find_opts("global"),
3001 global_init_func, NULL, NULL);
3004 int main(int argc, char **argv, char **envp)
3007 int snapshot, linux_boot;
3008 const char *initrd_filename;
3009 const char *kernel_filename, *kernel_cmdline;
3010 const char *boot_order = NULL;
3011 const char *boot_once = NULL;
3013 QemuOpts *opts, *machine_opts;
3014 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3015 QemuOptsList *olist;
3018 const char *loadvm = NULL;
3019 MachineClass *machine_class;
3020 const char *cpu_option;
3021 const char *vga_model = NULL;
3022 const char *qtest_chrdev = NULL;
3023 const char *qtest_log = NULL;
3024 const char *incoming = NULL;
3025 bool userconfig = true;
3026 bool nographic = false;
3027 int display_remote = 0;
3028 const char *log_mask = NULL;
3029 const char *log_file = NULL;
3030 char *trace_file = NULL;
3031 ram_addr_t maxram_size;
3032 uint64_t ram_slots = 0;
3033 FILE *vmstate_dump_file = NULL;
3034 Error *main_loop_err = NULL;
3036 bool list_data_dirs = false;
3038 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3040 error_init(argv[0]);
3041 module_call_init(MODULE_INIT_TRACE);
3043 qemu_init_cpu_list();
3044 qemu_init_cpu_loop();
3046 qemu_mutex_lock_iothread();
3048 atexit(qemu_run_exit_notifiers);
3049 qemu_init_exec_dir(argv[0]);
3051 module_call_init(MODULE_INIT_QOM);
3053 qemu_add_opts(&qemu_drive_opts);
3054 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3055 qemu_add_drive_opts(&qemu_common_drive_opts);
3056 qemu_add_drive_opts(&qemu_drive_opts);
3057 qemu_add_drive_opts(&bdrv_runtime_opts);
3058 qemu_add_opts(&qemu_chardev_opts);
3059 qemu_add_opts(&qemu_device_opts);
3060 qemu_add_opts(&qemu_netdev_opts);
3061 qemu_add_opts(&qemu_nic_opts);
3062 qemu_add_opts(&qemu_net_opts);
3063 qemu_add_opts(&qemu_rtc_opts);
3064 qemu_add_opts(&qemu_global_opts);
3065 qemu_add_opts(&qemu_mon_opts);
3066 qemu_add_opts(&qemu_trace_opts);
3067 qemu_add_opts(&qemu_option_rom_opts);
3068 qemu_add_opts(&qemu_machine_opts);
3069 qemu_add_opts(&qemu_accel_opts);
3070 qemu_add_opts(&qemu_mem_opts);
3071 qemu_add_opts(&qemu_smp_opts);
3072 qemu_add_opts(&qemu_boot_opts);
3073 qemu_add_opts(&qemu_add_fd_opts);
3074 qemu_add_opts(&qemu_object_opts);
3075 qemu_add_opts(&qemu_tpmdev_opts);
3076 qemu_add_opts(&qemu_realtime_opts);
3077 qemu_add_opts(&qemu_overcommit_opts);
3078 qemu_add_opts(&qemu_msg_opts);
3079 qemu_add_opts(&qemu_name_opts);
3080 qemu_add_opts(&qemu_numa_opts);
3081 qemu_add_opts(&qemu_icount_opts);
3082 qemu_add_opts(&qemu_semihosting_config_opts);
3083 qemu_add_opts(&qemu_fw_cfg_opts);
3084 module_call_init(MODULE_INIT_OPTS);
3087 precopy_infrastructure_init();
3088 postcopy_infrastructure_init();
3089 monitor_init_globals();
3091 if (qcrypto_init(&err) < 0) {
3092 error_reportf_err(err, "cannot initialize crypto: ");
3096 QLIST_INIT (&vm_change_state_head);
3097 os_setup_early_signal_handling();
3104 bdrv_init_with_whitelist();
3108 /* first pass of option parsing */
3110 while (optind < argc) {
3111 if (argv[optind][0] != '-') {
3115 const QEMUOption *popt;
3117 popt = lookup_opt(argc, argv, &optarg, &optind);
3118 switch (popt->index) {
3119 case QEMU_OPTION_nouserconfig:
3127 if (qemu_read_default_config_file() < 0) {
3132 /* second pass of option parsing */
3137 if (argv[optind][0] != '-') {
3138 loc_set_cmdline(argv, optind, 1);
3139 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3141 const QEMUOption *popt;
3143 popt = lookup_opt(argc, argv, &optarg, &optind);
3144 if (!(popt->arch_mask & arch_type)) {
3145 error_report("Option not supported for this target");
3148 switch(popt->index) {
3149 case QEMU_OPTION_cpu:
3150 /* hw initialization will check this */
3151 cpu_option = optarg;
3153 case QEMU_OPTION_hda:
3154 case QEMU_OPTION_hdb:
3155 case QEMU_OPTION_hdc:
3156 case QEMU_OPTION_hdd:
3157 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3160 case QEMU_OPTION_blockdev:
3163 BlockdevOptionsQueueEntry *bdo;
3165 v = qobject_input_visitor_new_str(optarg, "driver",
3168 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3169 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3172 loc_save(&bdo->loc);
3173 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3176 case QEMU_OPTION_drive:
3177 if (drive_def(optarg) == NULL) {
3181 case QEMU_OPTION_set:
3182 if (qemu_set_option(optarg) != 0)
3185 case QEMU_OPTION_global:
3186 if (qemu_global_option(optarg) != 0)
3189 case QEMU_OPTION_mtdblock:
3190 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3192 case QEMU_OPTION_sd:
3193 drive_add(IF_SD, -1, optarg, SD_OPTS);
3195 case QEMU_OPTION_pflash:
3196 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3198 case QEMU_OPTION_snapshot:
3201 case QEMU_OPTION_numa:
3202 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3208 case QEMU_OPTION_display:
3209 parse_display(optarg);
3211 case QEMU_OPTION_nographic:
3212 olist = qemu_find_opts("machine");
3213 qemu_opts_parse_noisily(olist, "graphics=off", false);
3215 dpy.type = DISPLAY_TYPE_NONE;
3217 case QEMU_OPTION_curses:
3218 #ifdef CONFIG_CURSES
3219 dpy.type = DISPLAY_TYPE_CURSES;
3221 error_report("curses or iconv support is disabled");
3225 case QEMU_OPTION_portrait:
3226 graphic_rotate = 90;
3228 case QEMU_OPTION_rotate:
3229 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3230 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3231 graphic_rotate != 180 && graphic_rotate != 270) {
3232 error_report("only 90, 180, 270 deg rotation is available");
3236 case QEMU_OPTION_kernel:
3237 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3240 case QEMU_OPTION_initrd:
3241 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3244 case QEMU_OPTION_append:
3245 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3248 case QEMU_OPTION_dtb:
3249 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3252 case QEMU_OPTION_cdrom:
3253 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3255 case QEMU_OPTION_boot:
3256 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3262 case QEMU_OPTION_fda:
3263 case QEMU_OPTION_fdb:
3264 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3267 case QEMU_OPTION_no_fd_bootchk:
3270 case QEMU_OPTION_netdev:
3272 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3276 case QEMU_OPTION_nic:
3278 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3282 case QEMU_OPTION_net:
3284 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3288 #ifdef CONFIG_LIBISCSI
3289 case QEMU_OPTION_iscsi:
3290 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3297 case QEMU_OPTION_bt:
3298 warn_report("The bluetooth subsystem is deprecated and will "
3299 "be removed soon. If the bluetooth subsystem is "
3300 "still useful for you, please send a mail to "
3302 add_device_config(DEV_BT, optarg);
3304 case QEMU_OPTION_audio_help:
3305 audio_legacy_help();
3308 case QEMU_OPTION_audiodev:
3309 audio_parse_option(optarg);
3311 case QEMU_OPTION_soundhw:
3312 select_soundhw (optarg);
3317 case QEMU_OPTION_version:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3329 case QEMU_OPTION_tpmdev:
3330 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3335 case QEMU_OPTION_mempath:
3338 case QEMU_OPTION_mem_prealloc:
3347 case QEMU_OPTION_DFILTER:
3348 qemu_set_dfilter_ranges(optarg, &error_fatal);
3351 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3353 case QEMU_OPTION_gdb:
3354 add_device_config(DEV_GDB, optarg);
3357 if (is_help_option(optarg)) {
3358 list_data_dirs = true;
3360 qemu_add_data_dir(optarg);
3363 case QEMU_OPTION_bios:
3364 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3367 case QEMU_OPTION_singlestep:
3374 keyboard_layout = optarg;
3376 case QEMU_OPTION_vga:
3385 w = strtol(p, (char **)&p, 10);
3388 error_report("invalid resolution or depth");
3394 h = strtol(p, (char **)&p, 10);
3399 depth = strtol(p, (char **)&p, 10);
3400 if (depth != 8 && depth != 15 && depth != 16 &&
3401 depth != 24 && depth != 32)
3403 } else if (*p == '\0') {
3404 depth = graphic_depth;
3411 graphic_depth = depth;
3414 case QEMU_OPTION_echr:
3417 term_escape_char = strtol(optarg, &r, 0);
3419 printf("Bad argument to echr\n");
3422 case QEMU_OPTION_monitor:
3423 default_monitor = 0;
3424 if (strncmp(optarg, "none", 4)) {
3425 monitor_parse(optarg, "readline", false);
3428 case QEMU_OPTION_qmp:
3429 monitor_parse(optarg, "control", false);
3430 default_monitor = 0;
3432 case QEMU_OPTION_qmp_pretty:
3433 monitor_parse(optarg, "control", true);
3434 default_monitor = 0;
3436 case QEMU_OPTION_mon:
3437 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3442 default_monitor = 0;
3444 case QEMU_OPTION_chardev:
3445 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3451 case QEMU_OPTION_fsdev:
3452 olist = qemu_find_opts("fsdev");
3454 error_report("fsdev support is disabled");
3457 opts = qemu_opts_parse_noisily(olist, optarg, true);
3462 case QEMU_OPTION_virtfs: {
3465 const char *writeout, *sock_fd, *socket, *path, *security_model;
3467 olist = qemu_find_opts("virtfs");
3469 error_report("virtfs support is disabled");
3472 opts = qemu_opts_parse_noisily(olist, optarg, true);
3477 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3478 qemu_opt_get(opts, "mount_tag") == NULL) {
3479 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3482 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3483 qemu_opts_id(opts) ?:
3484 qemu_opt_get(opts, "mount_tag"),
3487 error_report("duplicate or invalid fsdev id: %s",
3488 qemu_opt_get(opts, "mount_tag"));
3492 writeout = qemu_opt_get(opts, "writeout");
3494 #ifdef CONFIG_SYNC_FILE_RANGE
3495 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3497 error_report("writeout=immediate not supported "
3498 "on this platform");
3502 qemu_opt_set(fsdev, "fsdriver",
3503 qemu_opt_get(opts, "fsdriver"), &error_abort);
3504 path = qemu_opt_get(opts, "path");
3506 qemu_opt_set(fsdev, "path", path, &error_abort);
3508 security_model = qemu_opt_get(opts, "security_model");
3509 if (security_model) {
3510 qemu_opt_set(fsdev, "security_model", security_model,
3513 socket = qemu_opt_get(opts, "socket");
3515 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3517 sock_fd = qemu_opt_get(opts, "sock_fd");
3519 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3522 qemu_opt_set_bool(fsdev, "readonly",
3523 qemu_opt_get_bool(opts, "readonly", 0),
3525 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3527 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3528 qemu_opt_set(device, "fsdev",
3529 qemu_opts_id(fsdev), &error_abort);
3530 qemu_opt_set(device, "mount_tag",
3531 qemu_opt_get(opts, "mount_tag"), &error_abort);
3534 case QEMU_OPTION_virtfs_synth: {
3538 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3541 error_report("duplicate option: %s", "virtfs_synth");
3544 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3546 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3548 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3549 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3550 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3553 case QEMU_OPTION_serial:
3554 add_device_config(DEV_SERIAL, optarg);
3556 if (strncmp(optarg, "mon:", 4) == 0) {
3557 default_monitor = 0;
3560 case QEMU_OPTION_watchdog:
3562 error_report("only one watchdog option may be given");
3567 case QEMU_OPTION_watchdog_action:
3568 if (select_watchdog_action(optarg) == -1) {
3569 error_report("unknown -watchdog-action parameter");
3573 case QEMU_OPTION_parallel:
3574 add_device_config(DEV_PARALLEL, optarg);
3575 default_parallel = 0;
3576 if (strncmp(optarg, "mon:", 4) == 0) {
3577 default_monitor = 0;
3580 case QEMU_OPTION_debugcon:
3581 add_device_config(DEV_DEBUGCON, optarg);
3583 case QEMU_OPTION_loadvm:
3586 case QEMU_OPTION_full_screen:
3587 dpy.has_full_screen = true;
3588 dpy.full_screen = true;
3590 case QEMU_OPTION_alt_grab:
3593 case QEMU_OPTION_ctrl_grab:
3596 case QEMU_OPTION_no_quit:
3597 dpy.has_window_close = true;
3598 dpy.window_close = false;
3600 case QEMU_OPTION_sdl:
3602 dpy.type = DISPLAY_TYPE_SDL;
3605 error_report("SDL support is disabled");
3608 case QEMU_OPTION_pidfile:
3611 case QEMU_OPTION_win2k_hack:
3612 win2k_install_hack = 1;
3614 case QEMU_OPTION_acpitable:
3615 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3620 acpi_table_add(opts, &error_fatal);
3622 case QEMU_OPTION_smbios:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3628 smbios_entry_add(opts, &error_fatal);
3630 case QEMU_OPTION_fwcfg:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3637 case QEMU_OPTION_preconfig:
3638 preconfig_exit_requested = false;
3640 case QEMU_OPTION_enable_kvm:
3641 olist = qemu_find_opts("machine");
3642 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3645 case QEMU_OPTION_machine:
3646 olist = qemu_find_opts("machine");
3647 opts = qemu_opts_parse_noisily(olist, optarg, true);
3652 case QEMU_OPTION_no_kvm:
3653 olist = qemu_find_opts("machine");
3654 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3656 case QEMU_OPTION_accel:
3657 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3659 optarg = qemu_opt_get(accel_opts, "accel");
3660 if (!optarg || is_help_option(optarg)) {
3661 printf("Possible accelerators: kvm, xen, hax, tcg\n");
3664 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3665 false, &error_abort);
3666 qemu_opt_set(opts, "accel", optarg, &error_abort);
3668 case QEMU_OPTION_usb:
3669 olist = qemu_find_opts("machine");
3670 qemu_opts_parse_noisily(olist, "usb=on", false);
3672 case QEMU_OPTION_usbdevice:
3673 error_report("'-usbdevice' is deprecated, please use "
3674 "'-device usb-...' instead");
3675 olist = qemu_find_opts("machine");
3676 qemu_opts_parse_noisily(olist, "usb=on", false);
3677 add_device_config(DEV_USB, optarg);
3679 case QEMU_OPTION_device:
3680 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3685 case QEMU_OPTION_smp:
3686 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3691 case QEMU_OPTION_vnc:
3692 vnc_parse(optarg, &error_fatal);
3694 case QEMU_OPTION_no_acpi:
3697 case QEMU_OPTION_no_hpet:
3700 case QEMU_OPTION_no_reboot:
3703 case QEMU_OPTION_no_shutdown:
3706 case QEMU_OPTION_show_cursor:
3709 case QEMU_OPTION_uuid:
3710 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3711 error_report("failed to parse UUID string: wrong format");
3714 qemu_uuid_set = true;
3716 case QEMU_OPTION_option_rom:
3717 if (nb_option_roms >= MAX_OPTION_ROMS) {
3718 error_report("too many option ROMs");
3721 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3726 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3727 option_rom[nb_option_roms].bootindex =
3728 qemu_opt_get_number(opts, "bootindex", -1);
3729 if (!option_rom[nb_option_roms].name) {
3730 error_report("Option ROM file is not specified");
3735 case QEMU_OPTION_semihosting:
3736 semihosting.enabled = true;
3737 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3739 case QEMU_OPTION_semihosting_config:
3740 semihosting.enabled = true;
3741 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3744 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3746 const char *target = qemu_opt_get(opts, "target");
3747 if (target != NULL) {
3748 if (strcmp("native", target) == 0) {
3749 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3750 } else if (strcmp("gdb", target) == 0) {
3751 semihosting.target = SEMIHOSTING_TARGET_GDB;
3752 } else if (strcmp("auto", target) == 0) {
3753 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3755 error_report("unsupported semihosting-config %s",
3760 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3762 /* Set semihosting argument count and vector */
3763 qemu_opt_foreach(opts, add_semihosting_arg,
3764 &semihosting, NULL);
3766 error_report("unsupported semihosting-config %s", optarg);
3770 case QEMU_OPTION_name:
3771 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3777 case QEMU_OPTION_prom_env:
3778 if (nb_prom_envs >= MAX_PROM_ENVS) {
3779 error_report("too many prom variables");
3782 prom_envs[nb_prom_envs] = optarg;
3785 case QEMU_OPTION_old_param:
3788 case QEMU_OPTION_rtc:
3789 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3795 case QEMU_OPTION_tb_size:
3797 error_report("TCG is disabled");
3800 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3801 error_report("Invalid argument to -tb-size");
3805 case QEMU_OPTION_icount:
3806 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3812 case QEMU_OPTION_incoming:
3814 runstate_set(RUN_STATE_INMIGRATE);
3818 case QEMU_OPTION_only_migratable:
3819 only_migratable = 1;
3821 case QEMU_OPTION_nodefaults:
3824 case QEMU_OPTION_xen_domid:
3825 if (!(xen_available())) {
3826 error_report("Option not supported for this target");
3829 xen_domid = atoi(optarg);
3831 case QEMU_OPTION_xen_attach:
3832 if (!(xen_available())) {
3833 error_report("Option not supported for this target");
3836 xen_mode = XEN_ATTACH;
3838 case QEMU_OPTION_xen_domid_restrict:
3839 if (!(xen_available())) {
3840 error_report("Option not supported for this target");
3843 xen_domid_restrict = true;
3845 case QEMU_OPTION_trace:
3847 trace_file = trace_opt_parse(optarg);
3849 case QEMU_OPTION_readconfig:
3851 int ret = qemu_read_config_file(optarg);
3853 error_report("read config %s: %s", optarg,
3859 case QEMU_OPTION_spice:
3860 olist = qemu_find_opts("spice");
3862 error_report("spice support is disabled");
3865 opts = qemu_opts_parse_noisily(olist, optarg, false);
3871 case QEMU_OPTION_writeconfig:
3874 if (strcmp(optarg, "-") == 0) {
3877 fp = fopen(optarg, "w");
3879 error_report("open %s: %s", optarg,
3884 qemu_config_write(fp);
3890 case QEMU_OPTION_qtest:
3891 qtest_chrdev = optarg;
3893 case QEMU_OPTION_qtest_log:
3896 case QEMU_OPTION_sandbox:
3897 #ifdef CONFIG_SECCOMP
3898 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3904 error_report("-sandbox support is not enabled "
3905 "in this QEMU binary");
3909 case QEMU_OPTION_add_fd:
3911 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3917 error_report("File descriptor passing is disabled on this "
3922 case QEMU_OPTION_object:
3923 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3929 case QEMU_OPTION_realtime:
3930 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3935 /* Don't override the -overcommit option if set */
3936 enable_mlock = enable_mlock ||
3937 qemu_opt_get_bool(opts, "mlock", true);
3939 case QEMU_OPTION_overcommit:
3940 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3945 /* Don't override the -realtime option if set */
3946 enable_mlock = enable_mlock ||
3947 qemu_opt_get_bool(opts, "mem-lock", false);
3948 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3950 case QEMU_OPTION_msg:
3951 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3956 configure_msg(opts);
3958 case QEMU_OPTION_dump_vmstate:
3959 if (vmstate_dump_file) {
3960 error_report("only one '-dump-vmstate' "
3961 "option may be given");
3964 vmstate_dump_file = fopen(optarg, "w");
3965 if (vmstate_dump_file == NULL) {
3966 error_report("open %s: %s", optarg, strerror(errno));
3970 case QEMU_OPTION_enable_sync_profile:
3973 case QEMU_OPTION_nouserconfig:
3974 /* Nothing to be parsed here. Especially, do not error out below. */
3977 if (os_parse_cmd_args(popt->index, optarg)) {
3978 error_report("Option not supported in this build");
3985 * Clear error location left behind by the loop.
3986 * Best done right after the loop. Do not insert code here!
3990 user_register_global_props();
3992 replay_configure(icount_opts);
3994 if (incoming && !preconfig_exit_requested) {
3995 error_report("'preconfig' and 'incoming' options are "
3996 "mutually exclusive");
4000 configure_rtc(qemu_find_opts_singleton("rtc"));
4002 machine_class = select_machine();
4003 object_set_machine_compat_props(machine_class->compat_props);
4005 set_memory_options(&ram_slots, &maxram_size, machine_class);
4008 rcu_disable_atfork();
4010 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4011 error_reportf_err(err, "cannot create PID file: ");
4015 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4016 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4018 if (qemu_init_main_loop(&main_loop_err)) {
4019 error_report_err(main_loop_err);
4023 #ifdef CONFIG_SECCOMP
4024 olist = qemu_find_opts_err("sandbox", NULL);
4026 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4030 qemu_opts_foreach(qemu_find_opts("name"),
4031 parse_name, NULL, &error_fatal);
4034 qemu_opts_foreach(qemu_find_opts("add-fd"),
4035 parse_add_fd, NULL, &error_fatal);
4037 qemu_opts_foreach(qemu_find_opts("add-fd"),
4038 cleanup_add_fd, NULL, &error_fatal);
4041 current_machine = MACHINE(object_new(object_class_get_name(
4042 OBJECT_CLASS(machine_class))));
4043 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4046 object_property_add_child(object_get_root(), "machine",
4047 OBJECT(current_machine), &error_abort);
4048 object_property_add_child(container_get(OBJECT(current_machine),
4050 "sysbus", OBJECT(sysbus_get_default()),
4053 if (machine_class->minimum_page_bits) {
4054 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4055 /* This would be a board error: specifying a minimum smaller than
4056 * a target's compile-time fixed setting.
4058 g_assert_not_reached();
4062 cpu_exec_init_all();
4064 if (machine_class->hw_version) {
4065 qemu_set_hw_version(machine_class->hw_version);
4068 if (cpu_option && is_help_option(cpu_option)) {
4069 list_cpus(cpu_option);
4073 if (!trace_init_backends()) {
4076 trace_init_file(trace_file);
4078 /* Open the logfile at this point and set the log mask if necessary.
4081 qemu_set_log_filename(log_file, &error_fatal);
4086 mask = qemu_str_to_log_mask(log_mask);
4088 qemu_print_log_usage(stdout);
4096 /* add configured firmware directories */
4097 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4098 for (i = 0; dirs[i] != NULL; i++) {
4099 qemu_add_data_dir(dirs[i]);
4103 /* try to find datadir relative to the executable path */
4104 dir = os_find_datadir();
4105 qemu_add_data_dir(dir);
4108 /* add the datadir specified when building */
4109 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4111 /* -L help lists the data directories and exits. */
4112 if (list_data_dirs) {
4113 for (i = 0; i < data_dir_idx; i++) {
4114 printf("%s\n", data_dir[i]);
4119 /* machine_class: default to UP */
4120 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4121 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4122 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4124 /* default to machine_class->default_cpus */
4125 smp_cpus = machine_class->default_cpus;
4126 max_cpus = machine_class->default_cpus;
4128 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4130 /* sanity-check smp_cpus and max_cpus against machine_class */
4131 if (smp_cpus < machine_class->min_cpus) {
4132 error_report("Invalid SMP CPUs %d. The min CPUs "
4133 "supported by machine '%s' is %d", smp_cpus,
4134 machine_class->name, machine_class->min_cpus);
4137 if (max_cpus > machine_class->max_cpus) {
4138 error_report("Invalid SMP CPUs %d. The max CPUs "
4139 "supported by machine '%s' is %d", max_cpus,
4140 machine_class->name, machine_class->max_cpus);
4145 * Get the default machine options from the machine if it is not already
4146 * specified either by the configuration file or by the command line.
4148 if (machine_class->default_machine_opts) {
4149 qemu_opts_set_defaults(qemu_find_opts("machine"),
4150 machine_class->default_machine_opts, 0);
4153 qemu_opts_foreach(qemu_find_opts("device"),
4154 default_driver_check, NULL, NULL);
4155 qemu_opts_foreach(qemu_find_opts("global"),
4156 default_driver_check, NULL, NULL);
4158 if (!vga_model && !default_vga) {
4159 vga_interface_type = VGA_DEVICE;
4161 if (!has_defaults || machine_class->no_serial) {
4164 if (!has_defaults || machine_class->no_parallel) {
4165 default_parallel = 0;
4167 if (!has_defaults || machine_class->no_floppy) {
4170 if (!has_defaults || machine_class->no_cdrom) {
4173 if (!has_defaults || machine_class->no_sdcard) {
4176 if (!has_defaults) {
4177 default_monitor = 0;
4182 if (is_daemonized()) {
4183 if (!preconfig_exit_requested) {
4184 error_report("'preconfig' and 'daemonize' options are "
4185 "mutually exclusive");
4189 /* According to documentation and historically, -nographic redirects
4190 * serial port, parallel port and monitor to stdio, which does not work
4191 * with -daemonize. We can redirect these to null instead, but since
4192 * -nographic is legacy, let's just error out.
4193 * We disallow -nographic only if all other ports are not redirected
4194 * explicitly, to not break existing legacy setups which uses
4195 * -nographic _and_ redirects all ports explicitly - this is valid
4196 * usage, -nographic is just a no-op in this case.
4199 && (default_parallel || default_serial || default_monitor)) {
4200 error_report("-nographic cannot be used with -daemonize");
4203 #ifdef CONFIG_CURSES
4204 if (dpy.type == DISPLAY_TYPE_CURSES) {
4205 error_report("curses display cannot be used with -daemonize");
4212 if (default_parallel)
4213 add_device_config(DEV_PARALLEL, "null");
4214 if (default_serial && default_monitor) {
4215 add_device_config(DEV_SERIAL, "mon:stdio");
4218 add_device_config(DEV_SERIAL, "stdio");
4219 if (default_monitor)
4220 monitor_parse("stdio", "readline", false);
4224 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4225 if (default_parallel)
4226 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4227 if (default_monitor)
4228 monitor_parse("vc:80Cx24C", "readline", false);
4231 #if defined(CONFIG_VNC)
4232 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4236 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4237 if (!qemu_display_find_default(&dpy)) {
4238 dpy.type = DISPLAY_TYPE_NONE;
4239 #if defined(CONFIG_VNC)
4240 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4244 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4245 dpy.type = DISPLAY_TYPE_NONE;
4248 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4249 error_report("-alt-grab and -ctrl-grab are only valid "
4250 "for SDL, ignoring option");
4252 if (dpy.has_window_close &&
4253 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4254 error_report("-no-quit is only valid for GTK and SDL, "
4258 qemu_display_early_init(&dpy);
4259 qemu_console_early_init();
4261 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4262 #if defined(CONFIG_OPENGL)
4263 error_report("OpenGL is not supported by the display");
4265 error_report("OpenGL support is disabled");
4273 qemu_opts_foreach(qemu_find_opts("object"),
4274 user_creatable_add_opts_foreach,
4275 object_create_initial, &error_fatal);
4277 qemu_opts_foreach(qemu_find_opts("chardev"),
4278 chardev_init_func, NULL, &error_fatal);
4280 #ifdef CONFIG_VIRTFS
4281 qemu_opts_foreach(qemu_find_opts("fsdev"),
4282 fsdev_init_func, NULL, &error_fatal);
4285 if (qemu_opts_foreach(qemu_find_opts("device"),
4286 device_help_func, NULL, NULL)) {
4291 * Note: we need to create block backends before
4292 * machine_set_property(), so machine properties can refer to
4295 configure_blockdev(&bdo_queue, machine_class, snapshot);
4297 machine_opts = qemu_get_machine_opts();
4298 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4300 current_machine->ram_size = ram_size;
4301 current_machine->maxram_size = maxram_size;
4302 current_machine->ram_slots = ram_slots;
4305 * Note: uses machine properties such as kernel-irqchip, must run
4306 * after machine_set_property().
4308 configure_accelerator(current_machine, argv[0]);
4311 * Beware, QOM objects created before this point miss global and
4312 * compat properties.
4314 * Global properties get set up by qdev_prop_register_global(),
4315 * called from user_register_global_props(), and certain option
4316 * desugaring. Also in CPU feature desugaring (buried in
4317 * parse_cpu_option()), which happens below this point, but may
4318 * only target the CPU type, which can only be created after
4319 * parse_cpu_option() returned the type.
4321 * Machine compat properties: object_set_machine_compat_props().
4322 * Accelerator compat props: object_set_accelerator_compat_props(),
4323 * called from configure_accelerator().
4326 if (!qtest_enabled() && machine_class->deprecation_reason) {
4327 error_report("Machine type '%s' is deprecated: %s",
4328 machine_class->name, machine_class->deprecation_reason);
4332 * Note: creates a QOM object, must run only after global and
4333 * compat properties have been set up.
4335 migration_object_init();
4338 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4341 machine_opts = qemu_get_machine_opts();
4342 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4343 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4344 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4345 bios_name = qemu_opt_get(machine_opts, "firmware");
4347 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4349 boot_order = qemu_opt_get(opts, "order");
4351 validate_bootdevices(boot_order, &error_fatal);
4354 boot_once = qemu_opt_get(opts, "once");
4356 validate_bootdevices(boot_once, &error_fatal);
4359 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4360 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4364 boot_order = machine_class->default_boot_order;
4367 if (!kernel_cmdline) {
4368 kernel_cmdline = "";
4369 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4372 linux_boot = (kernel_filename != NULL);
4374 if (!linux_boot && *kernel_cmdline != '\0') {
4375 error_report("-append only allowed with -kernel option");
4379 if (!linux_boot && initrd_filename != NULL) {
4380 error_report("-initrd only allowed with -kernel option");
4384 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4385 /* fall back to the -kernel/-append */
4386 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4389 os_set_line_buffering();
4391 /* spice needs the timers to be initialized by this point */
4396 if (!tcg_enabled()) {
4397 error_report("-icount is not allowed with hardware virtualization");
4400 configure_icount(icount_opts, &error_abort);
4401 qemu_opts_del(icount_opts);
4404 if (tcg_enabled()) {
4405 qemu_tcg_configure(accel_opts, &error_fatal);
4409 QemuOptsList *net = qemu_find_opts("net");
4410 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4412 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4416 if (net_init_clients(&err) < 0) {
4417 error_report_err(err);
4421 qemu_opts_foreach(qemu_find_opts("object"),
4422 user_creatable_add_opts_foreach,
4423 object_create_delayed, &error_fatal);
4427 /* init the bluetooth world */
4428 if (foreach_device_config(DEV_BT, bt_parse))
4431 if (!xen_enabled()) {
4432 /* On 32-bit hosts, QEMU is limited by virtual address space */
4433 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4434 error_report("at most 2047 MB RAM can be simulated");
4441 dirty_bitmap_mig_init();
4443 qemu_opts_foreach(qemu_find_opts("mon"),
4444 mon_init_func, NULL, &error_fatal);
4446 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4448 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4450 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4453 /* If no default VGA is requested, the default is "none". */
4455 vga_model = get_default_vga_model(machine_class);
4458 select_vgahw(machine_class, vga_model);
4462 i = select_watchdog(watchdog);
4464 exit (i == 1 ? 1 : 0);
4467 /* This checkpoint is required by replay to separate prior clock
4468 reading from the other reads, because timer polling functions query
4469 clock values from the log. */
4470 replay_checkpoint(CHECKPOINT_INIT);
4471 qdev_machine_init();
4473 current_machine->boot_order = boot_order;
4475 /* parse features once if machine provides default cpu_type */
4476 current_machine->cpu_type = machine_class->default_cpu_type;
4478 current_machine->cpu_type = parse_cpu_option(cpu_option);
4480 parse_numa_opts(current_machine);
4482 /* do monitor/qmp handling at preconfig state if requested */
4485 audio_init_audiodevs();
4487 /* from here on runstate is RUN_STATE_PRELAUNCH */
4488 machine_run_board_init(current_machine);
4494 if (hax_enabled()) {
4498 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4499 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4501 /* init USB devices */
4502 if (machine_usb(current_machine)) {
4503 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4507 /* Check if IGD GFX passthrough. */
4510 /* init generic devices */
4511 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4512 qemu_opts_foreach(qemu_find_opts("device"),
4513 device_init_func, NULL, &error_fatal);
4515 cpu_synchronize_all_post_init();
4517 rom_reset_order_override();
4519 /* Did we create any drives that we failed to create a device for? */
4520 drive_check_orphaned();
4522 /* Don't warn about the default network setup that you get if
4523 * no command line -net or -netdev options are specified. There
4524 * are two cases that we would otherwise complain about:
4525 * (1) board doesn't support a NIC but the implicit "-net nic"
4527 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4528 * sets up a nic that isn't connected to anything.
4530 if (!default_net && (!qtest_enabled() || has_defaults)) {
4531 net_check_clients();
4535 qemu_boot_set(boot_once, &error_fatal);
4536 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4539 /* init local displays */
4540 ds = init_displaystate();
4541 qemu_display_init(ds, &dpy);
4543 /* must be after terminal init, SDL library changes signal handlers */
4544 os_setup_signal_handling();
4546 /* init remote displays */
4548 qemu_opts_foreach(qemu_find_opts("vnc"),
4549 vnc_init_func, NULL, &error_fatal);
4553 qemu_spice_display_init();
4556 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4560 qdev_machine_creation_done();
4562 /* TODO: once all bus devices are qdevified, this should be done
4563 * when bus is created by qdev.c */
4564 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4565 qemu_run_machine_init_done_notifiers();
4567 if (rom_check_and_register_reset() != 0) {
4568 error_report("rom check and register reset failed");
4574 /* This checkpoint is required by replay to separate prior clock
4575 reading from the other reads, because timer polling functions query
4576 clock values from the log. */
4577 replay_checkpoint(CHECKPOINT_RESET);
4578 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4579 register_global_state();
4581 Error *local_err = NULL;
4582 if (load_snapshot(loadvm, &local_err) < 0) {
4583 error_report_err(local_err);
4588 if (replay_mode != REPLAY_MODE_NONE) {
4589 replay_vmstate_init();
4592 qdev_prop_check_globals();
4593 if (vmstate_dump_file) {
4595 dump_vmstate_json_to_file(vmstate_dump_file);
4600 Error *local_err = NULL;
4601 qemu_start_incoming_migration(incoming, &local_err);
4603 error_reportf_err(local_err, "-incoming %s: ", incoming);
4606 } else if (autostart) {
4610 accel_setup_post(current_machine);
4615 gdbserver_cleanup();
4618 * cleaning up the migration object cancels any existing migration
4619 * try to do this early so that it also stops using devices.
4621 migration_shutdown();
4623 /* No more vcpu or device emulation activity beyond this point */
4626 job_cancel_sync_all();
4631 /* vhost-user must be cleaned up before chardevs. */
4637 user_creatable_cleanup();
4638 /* TODO: unref root container, check all devices are ok */