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 "hw/semihosting/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"
131 #include "qemu/guest-random.h"
133 #define MAX_VIRTIO_CONSOLES 1
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 const char* keyboard_layout = NULL;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
147 NICInfo nd_table[MAX_NICS];
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
167 unsigned int max_cpus;
170 int acpi_enabled = 1;
173 static int no_reboot;
176 int graphic_rotate = 0;
177 const char *watchdog;
178 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
181 const char *qemu_name;
184 unsigned int nb_prom_envs = 0;
185 const char *prom_envs[MAX_PROM_ENVS];
188 uint8_t *boot_splash_filedata;
189 int only_migratable; /* turn it off unless user states otherwise */
190 bool wakeup_suspend_enabled;
192 int icount_align_option;
194 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
195 * little-endian "wire format" described in the SMBIOS 2.6 specification.
200 static NotifierList exit_notifiers =
201 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
203 static NotifierList machine_init_done_notifiers =
204 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
208 enum xen_mode xen_mode = XEN_EMULATE;
209 bool xen_domid_restrict;
211 static int has_defaults = 1;
212 static int default_serial = 1;
213 static int default_parallel = 1;
214 static int default_monitor = 1;
215 static int default_floppy = 1;
216 static int default_cdrom = 1;
217 static int default_sdcard = 1;
218 static int default_vga = 1;
219 static int default_net = 1;
225 { .driver = "isa-serial", .flag = &default_serial },
226 { .driver = "isa-parallel", .flag = &default_parallel },
227 { .driver = "isa-fdc", .flag = &default_floppy },
228 { .driver = "floppy", .flag = &default_floppy },
229 { .driver = "ide-cd", .flag = &default_cdrom },
230 { .driver = "ide-hd", .flag = &default_cdrom },
231 { .driver = "ide-drive", .flag = &default_cdrom },
232 { .driver = "scsi-cd", .flag = &default_cdrom },
233 { .driver = "scsi-hd", .flag = &default_cdrom },
234 { .driver = "VGA", .flag = &default_vga },
235 { .driver = "isa-vga", .flag = &default_vga },
236 { .driver = "cirrus-vga", .flag = &default_vga },
237 { .driver = "isa-cirrus-vga", .flag = &default_vga },
238 { .driver = "vmware-svga", .flag = &default_vga },
239 { .driver = "qxl-vga", .flag = &default_vga },
240 { .driver = "virtio-vga", .flag = &default_vga },
241 { .driver = "ati-vga", .flag = &default_vga },
242 { .driver = "vhost-user-vga", .flag = &default_vga },
245 static QemuOptsList qemu_rtc_opts = {
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
252 .type = QEMU_OPT_STRING,
255 .type = QEMU_OPT_STRING,
258 .type = QEMU_OPT_STRING,
260 { /* end of list */ }
264 static QemuOptsList qemu_option_rom_opts = {
265 .name = "option-rom",
266 .implied_opt_name = "romfile",
267 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
271 .type = QEMU_OPT_NUMBER,
274 .type = QEMU_OPT_STRING,
276 { /* end of list */ }
280 static QemuOptsList qemu_machine_opts = {
282 .implied_opt_name = "type",
284 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
287 * no elements => accept any
288 * sanity checking will happen later
289 * when setting machine properties
295 static QemuOptsList qemu_accel_opts = {
297 .implied_opt_name = "accel",
298 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
303 .type = QEMU_OPT_STRING,
304 .help = "Select the type of accelerator",
308 .type = QEMU_OPT_STRING,
309 .help = "Enable/disable multi-threaded TCG",
311 { /* end of list */ }
315 static QemuOptsList qemu_boot_opts = {
317 .implied_opt_name = "order",
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
323 .type = QEMU_OPT_STRING,
326 .type = QEMU_OPT_STRING,
329 .type = QEMU_OPT_BOOL,
332 .type = QEMU_OPT_STRING,
334 .name = "splash-time",
335 .type = QEMU_OPT_NUMBER,
337 .name = "reboot-timeout",
338 .type = QEMU_OPT_NUMBER,
341 .type = QEMU_OPT_BOOL,
347 static QemuOptsList qemu_add_fd_opts = {
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
353 .type = QEMU_OPT_NUMBER,
354 .help = "file descriptor of which a duplicate is added to fd set",
357 .type = QEMU_OPT_NUMBER,
358 .help = "ID of the fd set to add fd to",
361 .type = QEMU_OPT_STRING,
362 .help = "free-form string used to describe fd",
364 { /* end of list */ }
368 static QemuOptsList qemu_object_opts = {
370 .implied_opt_name = "qom-type",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
377 static QemuOptsList qemu_tpmdev_opts = {
379 .implied_opt_name = "type",
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
382 /* options are defined in the TPM backends */
383 { /* end of list */ }
387 static QemuOptsList qemu_realtime_opts = {
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
393 .type = QEMU_OPT_BOOL,
395 { /* end of list */ }
399 static QemuOptsList qemu_overcommit_opts = {
400 .name = "overcommit",
401 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
405 .type = QEMU_OPT_BOOL,
409 .type = QEMU_OPT_BOOL,
411 { /* end of list */ }
415 static QemuOptsList qemu_msg_opts = {
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
421 .type = QEMU_OPT_BOOL,
423 { /* end of list */ }
427 static QemuOptsList qemu_name_opts = {
429 .implied_opt_name = "guest",
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
435 .type = QEMU_OPT_STRING,
436 .help = "Sets the name of the guest.\n"
437 "This name will be displayed in the SDL window caption.\n"
438 "The name will also be used for the VNC server",
441 .type = QEMU_OPT_STRING,
442 .help = "Sets the name of the QEMU process, as shown in top etc",
444 .name = "debug-threads",
445 .type = QEMU_OPT_BOOL,
446 .help = "When enabled, name the individual threads; defaults off.\n"
447 "NOTE: The thread names are for debugging and not a\n"
450 { /* End of list */ }
454 static QemuOptsList qemu_mem_opts = {
456 .implied_opt_name = "size",
457 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
462 .type = QEMU_OPT_SIZE,
466 .type = QEMU_OPT_NUMBER,
470 .type = QEMU_OPT_SIZE,
472 { /* end of list */ }
476 static QemuOptsList qemu_icount_opts = {
478 .implied_opt_name = "shift",
480 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
484 .type = QEMU_OPT_STRING,
487 .type = QEMU_OPT_BOOL,
490 .type = QEMU_OPT_BOOL,
493 .type = QEMU_OPT_STRING,
496 .type = QEMU_OPT_STRING,
498 .name = "rrsnapshot",
499 .type = QEMU_OPT_STRING,
501 { /* end of list */ }
505 static QemuOptsList qemu_fw_cfg_opts = {
507 .implied_opt_name = "name",
508 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
512 .type = QEMU_OPT_STRING,
513 .help = "Sets the fw_cfg name of the blob to be inserted",
516 .type = QEMU_OPT_STRING,
517 .help = "Sets the name of the file from which "
518 "the fw_cfg blob will be loaded",
521 .type = QEMU_OPT_STRING,
522 .help = "Sets content of the blob to be inserted from a string",
524 { /* end of list */ }
529 * Get machine options
531 * Returns: machine options (never null).
533 QemuOpts *qemu_get_machine_opts(void)
535 return qemu_find_opts_singleton("machine");
538 const char *qemu_get_vm_name(void)
543 static void res_free(void)
545 g_free(boot_splash_filedata);
546 boot_splash_filedata = NULL;
549 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
551 const char *driver = qemu_opt_get(opts, "driver");
556 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
557 if (strcmp(default_list[i].driver, driver) != 0)
559 *(default_list[i].flag) = 0;
564 /***********************************************************/
567 static RunState current_run_state = RUN_STATE_PRECONFIG;
569 /* We use RUN_STATE__MAX but any invalid value will do */
570 static RunState vmstop_requested = RUN_STATE__MAX;
571 static QemuMutex vmstop_lock;
576 } RunStateTransition;
578 static const RunStateTransition runstate_transitions_def[] = {
580 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
581 /* Early switch to inmigrate state to allow -incoming CLI option work
582 * as it used to. TODO: delay actual switching to inmigrate state to
583 * the point after machine is built and remove this hack.
585 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
587 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
588 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
591 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
592 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
593 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
595 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
596 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
597 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
598 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
599 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
601 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
602 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
604 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
605 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
608 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
609 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
612 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
613 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
615 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_PAUSED, RUN_STATE_COLO},
618 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
619 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
622 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
623 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
628 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
629 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
630 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
632 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
633 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_COLO, RUN_STATE_RUNNING },
637 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
638 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
639 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
640 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
641 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
643 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
644 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
645 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
646 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
647 { RUN_STATE_RUNNING, RUN_STATE_COLO},
649 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
651 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
652 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
655 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
656 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
657 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
658 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
660 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
662 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
663 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
664 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
665 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
667 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
668 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
669 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
671 { RUN_STATE__MAX, RUN_STATE__MAX },
674 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
676 bool runstate_check(RunState state)
678 return current_run_state == state;
681 bool runstate_store(char *str, size_t size)
683 const char *state = RunState_str(current_run_state);
684 size_t len = strlen(state) + 1;
689 memcpy(str, state, len);
693 static void runstate_init(void)
695 const RunStateTransition *p;
697 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
698 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
699 runstate_valid_transitions[p->from][p->to] = true;
702 qemu_mutex_init(&vmstop_lock);
705 /* This function will abort() on invalid state transitions */
706 void runstate_set(RunState new_state)
708 assert(new_state < RUN_STATE__MAX);
710 trace_runstate_set(current_run_state, RunState_str(current_run_state),
711 new_state, RunState_str(new_state));
713 if (current_run_state == new_state) {
717 if (!runstate_valid_transitions[current_run_state][new_state]) {
718 error_report("invalid runstate transition: '%s' -> '%s'",
719 RunState_str(current_run_state),
720 RunState_str(new_state));
724 current_run_state = new_state;
727 int runstate_is_running(void)
729 return runstate_check(RUN_STATE_RUNNING);
732 bool runstate_needs_reset(void)
734 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
735 runstate_check(RUN_STATE_SHUTDOWN);
738 StatusInfo *qmp_query_status(Error **errp)
740 StatusInfo *info = g_malloc0(sizeof(*info));
742 info->running = runstate_is_running();
743 info->singlestep = singlestep;
744 info->status = current_run_state;
749 bool qemu_vmstop_requested(RunState *r)
751 qemu_mutex_lock(&vmstop_lock);
752 *r = vmstop_requested;
753 vmstop_requested = RUN_STATE__MAX;
754 qemu_mutex_unlock(&vmstop_lock);
755 return *r < RUN_STATE__MAX;
758 void qemu_system_vmstop_request_prepare(void)
760 qemu_mutex_lock(&vmstop_lock);
763 void qemu_system_vmstop_request(RunState state)
765 vmstop_requested = state;
766 qemu_mutex_unlock(&vmstop_lock);
770 /***********************************************************/
771 /* RTC reference time/date access */
772 static time_t qemu_ref_timedate(QEMUClockType clock)
774 time_t value = qemu_clock_get_ms(clock) / 1000;
776 case QEMU_CLOCK_REALTIME:
777 value -= rtc_realtime_clock_offset;
779 case QEMU_CLOCK_VIRTUAL:
780 value += rtc_ref_start_datetime;
782 case QEMU_CLOCK_HOST:
783 if (rtc_base_type == RTC_BASE_DATETIME) {
784 value -= rtc_host_datetime_offset;
793 void qemu_get_timedate(struct tm *tm, int offset)
795 time_t ti = qemu_ref_timedate(rtc_clock);
799 switch (rtc_base_type) {
800 case RTC_BASE_DATETIME:
804 case RTC_BASE_LOCALTIME:
805 localtime_r(&ti, tm);
810 int qemu_timedate_diff(struct tm *tm)
814 switch (rtc_base_type) {
815 case RTC_BASE_DATETIME:
817 seconds = mktimegm(tm);
819 case RTC_BASE_LOCALTIME:
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
830 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
833 static void configure_rtc_base_datetime(const char *startdate)
835 time_t rtc_start_datetime;
838 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
839 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
841 } else if (sscanf(startdate, "%d-%d-%d",
842 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
851 rtc_start_datetime = mktimegm(&tm);
852 if (rtc_start_datetime == -1) {
854 error_report("invalid datetime format");
855 error_printf("valid formats: "
856 "'2006-06-17T16:01:21' or '2006-06-17'\n");
859 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
860 rtc_ref_start_datetime = rtc_start_datetime;
863 static void configure_rtc(QemuOpts *opts)
868 rtc_clock = QEMU_CLOCK_HOST;
869 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
870 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
872 value = qemu_opt_get(opts, "base");
874 if (!strcmp(value, "utc")) {
875 rtc_base_type = RTC_BASE_UTC;
876 } else if (!strcmp(value, "localtime")) {
877 Error *blocker = NULL;
878 rtc_base_type = RTC_BASE_LOCALTIME;
879 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
880 "-rtc base=localtime");
881 replay_add_blocker(blocker);
883 rtc_base_type = RTC_BASE_DATETIME;
884 configure_rtc_base_datetime(value);
887 value = qemu_opt_get(opts, "clock");
889 if (!strcmp(value, "host")) {
890 rtc_clock = QEMU_CLOCK_HOST;
891 } else if (!strcmp(value, "rt")) {
892 rtc_clock = QEMU_CLOCK_REALTIME;
893 } else if (!strcmp(value, "vm")) {
894 rtc_clock = QEMU_CLOCK_VIRTUAL;
896 error_report("invalid option value '%s'", value);
900 value = qemu_opt_get(opts, "driftfix");
902 if (!strcmp(value, "slew")) {
903 static GlobalProperty slew_lost_ticks = {
904 .driver = "mc146818rtc",
905 .property = "lost_tick_policy",
909 qdev_prop_register_global(&slew_lost_ticks);
910 } else if (!strcmp(value, "none")) {
911 /* discard is default */
913 error_report("invalid option value '%s'", value);
919 /***********************************************************/
920 /* Bluetooth support */
923 static struct HCIInfo *hci_table[MAX_NICS];
925 struct HCIInfo *qemu_next_hci(void)
927 if (cur_hci == nb_hcis)
930 return hci_table[cur_hci++];
933 static int bt_hci_parse(const char *str)
938 if (nb_hcis >= MAX_NICS) {
939 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
952 bdaddr.b[5] = 0x56 + nb_hcis;
953 hci->bdaddr_set(hci, bdaddr.b);
955 hci_table[nb_hcis++] = hci;
960 static void bt_vhci_add(int vlan_id)
962 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
965 warn_report("adding a VHCI to an empty scatternet %i",
968 bt_vhci_init(bt_new_hci(vlan));
971 static struct bt_device_s *bt_device_add(const char *opt)
973 struct bt_scatternet_s *vlan;
975 char *endp = strstr(opt, ",vlan=");
976 int len = (endp ? endp - opt : strlen(opt)) + 1;
979 pstrcpy(devname, MIN(sizeof(devname), len), opt);
982 vlan_id = strtol(endp + 6, &endp, 0);
984 error_report("unrecognised bluetooth vlan Id");
989 vlan = qemu_find_bt_vlan(vlan_id);
992 warn_report("adding a slave device to an empty scatternet %i",
995 if (!strcmp(devname, "keyboard"))
996 return bt_keyboard_init(vlan);
998 error_report("unsupported bluetooth device '%s'", devname);
1002 static int bt_parse(const char *opt)
1004 const char *endp, *p;
1007 if (strstart(opt, "hci", &endp)) {
1008 if (!*endp || *endp == ',') {
1010 if (!strstart(endp, ",vlan=", 0))
1013 return bt_hci_parse(opt);
1015 } else if (strstart(opt, "vhci", &endp)) {
1016 if (!*endp || *endp == ',') {
1018 if (strstart(endp, ",vlan=", &p)) {
1019 vlan = strtol(p, (char **) &endp, 0);
1021 error_report("bad scatternet '%s'", p);
1025 error_report("bad parameter '%s'", endp + 1);
1034 } else if (strstart(opt, "device:", &endp))
1035 return !bt_device_add(endp);
1037 error_report("bad bluetooth parameter '%s'", opt);
1041 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1043 const char *proc_name;
1045 if (qemu_opt_get(opts, "debug-threads")) {
1046 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1048 qemu_name = qemu_opt_get(opts, "guest");
1050 proc_name = qemu_opt_get(opts, "process");
1052 os_set_proc_name(proc_name);
1058 bool defaults_enabled(void)
1060 return has_defaults;
1064 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1066 int fd, dupfd, flags;
1068 const char *fd_opaque = NULL;
1071 fd = qemu_opt_get_number(opts, "fd", -1);
1072 fdset_id = qemu_opt_get_number(opts, "set", -1);
1073 fd_opaque = qemu_opt_get(opts, "opaque");
1076 error_setg(errp, "fd option is required and must be non-negative");
1080 if (fd <= STDERR_FILENO) {
1081 error_setg(errp, "fd cannot be a standard I/O stream");
1086 * All fds inherited across exec() necessarily have FD_CLOEXEC
1087 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1089 flags = fcntl(fd, F_GETFD);
1090 if (flags == -1 || (flags & FD_CLOEXEC)) {
1091 error_setg(errp, "fd is not valid or already in use");
1096 error_setg(errp, "set option is required and must be non-negative");
1100 #ifdef F_DUPFD_CLOEXEC
1101 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1105 qemu_set_cloexec(dupfd);
1109 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1113 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1114 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1121 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1125 fd = qemu_opt_get_number(opts, "fd", -1);
1132 /***********************************************************/
1133 /* QEMU Block devices */
1135 #define HD_OPTS "media=disk"
1136 #define CDROM_OPTS "media=cdrom"
1138 #define PFLASH_OPTS ""
1142 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1144 BlockInterfaceType *block_default_type = opaque;
1146 return drive_new(opts, *block_default_type, errp) == NULL;
1149 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1151 if (qemu_opt_get(opts, "snapshot") == NULL) {
1152 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1157 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1158 int index, const char *optstr)
1163 if (!enable || drive_get_by_index(type, index)) {
1167 opts = drive_add(type, index, NULL, optstr);
1169 drive_enable_snapshot(NULL, opts, NULL);
1172 dinfo = drive_new(opts, type, &error_abort);
1173 dinfo->is_default = true;
1177 typedef struct BlockdevOptionsQueueEntry {
1178 BlockdevOptions *bdo;
1180 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1181 } BlockdevOptionsQueueEntry;
1183 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1185 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1186 MachineClass *machine_class, int snapshot)
1189 * If the currently selected machine wishes to override the
1190 * units-per-bus property of its default HBA interface type, do so
1193 if (machine_class->units_per_default_bus) {
1194 override_max_devs(machine_class->block_default_type,
1195 machine_class->units_per_default_bus);
1198 /* open the virtual block devices */
1199 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1200 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1202 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1203 loc_push_restore(&bdo->loc);
1204 qmp_blockdev_add(bdo->bdo, &error_fatal);
1206 qapi_free_BlockdevOptions(bdo->bdo);
1209 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1210 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1213 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1214 &machine_class->block_default_type, &error_fatal)) {
1215 /* We printed help */
1219 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1221 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1222 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1226 static QemuOptsList qemu_smp_opts = {
1228 .implied_opt_name = "cpus",
1229 .merge_lists = true,
1230 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1234 .type = QEMU_OPT_NUMBER,
1237 .type = QEMU_OPT_NUMBER,
1240 .type = QEMU_OPT_NUMBER,
1243 .type = QEMU_OPT_NUMBER,
1246 .type = QEMU_OPT_NUMBER,
1248 { /*End of list */ }
1252 static void smp_parse(QemuOpts *opts)
1255 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1256 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1257 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1258 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1260 /* compute missing values, prefer sockets over cores over threads */
1261 if (cpus == 0 || sockets == 0) {
1262 cores = cores > 0 ? cores : 1;
1263 threads = threads > 0 ? threads : 1;
1265 sockets = sockets > 0 ? sockets : 1;
1266 cpus = cores * threads * sockets;
1268 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1269 sockets = max_cpus / (cores * threads);
1271 } else if (cores == 0) {
1272 threads = threads > 0 ? threads : 1;
1273 cores = cpus / (sockets * threads);
1274 cores = cores > 0 ? cores : 1;
1275 } else if (threads == 0) {
1276 threads = cpus / (cores * sockets);
1277 threads = threads > 0 ? threads : 1;
1278 } else if (sockets * cores * threads < cpus) {
1279 error_report("cpu topology: "
1280 "sockets (%u) * cores (%u) * threads (%u) < "
1282 sockets, cores, threads, cpus);
1286 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1288 if (max_cpus < cpus) {
1289 error_report("maxcpus must be equal to or greater than smp");
1293 if (sockets * cores * threads > max_cpus) {
1294 error_report("cpu topology: "
1295 "sockets (%u) * cores (%u) * threads (%u) > "
1297 sockets, cores, threads, max_cpus);
1301 if (sockets * cores * threads != max_cpus) {
1302 warn_report("Invalid CPU topology deprecated: "
1303 "sockets (%u) * cores (%u) * threads (%u) "
1305 sockets, cores, threads, max_cpus);
1310 smp_threads = threads;
1314 Error *blocker = NULL;
1315 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1316 replay_add_blocker(blocker);
1320 static void realtime_init(void)
1323 if (os_mlock() < 0) {
1324 error_report("locking memory failed");
1331 static void configure_msg(QemuOpts *opts)
1333 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1337 /* Now we still need this for compatibility with XEN. */
1338 bool has_igd_gfx_passthru;
1339 static void igd_gfx_passthru(void)
1341 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1344 /***********************************************************/
1347 static int usb_device_add(const char *devname)
1349 USBDevice *dev = NULL;
1351 if (!machine_usb(current_machine)) {
1355 dev = usbdevice_create(devname);
1362 static int usb_parse(const char *cmdline)
1365 r = usb_device_add(cmdline);
1367 error_report("could not add USB device '%s'", cmdline);
1372 /***********************************************************/
1373 /* machine registration */
1375 MachineState *current_machine;
1377 static MachineClass *find_machine(const char *name, GSList *machines)
1381 for (el = machines; el; el = el->next) {
1382 MachineClass *mc = el->data;
1384 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1392 static MachineClass *find_default_machine(GSList *machines)
1396 for (el = machines; el; el = el->next) {
1397 MachineClass *mc = el->data;
1399 if (mc->is_default) {
1407 MachineInfoList *qmp_query_machines(Error **errp)
1409 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1410 MachineInfoList *mach_list = NULL;
1412 for (el = machines; el; el = el->next) {
1413 MachineClass *mc = el->data;
1414 MachineInfoList *entry;
1417 info = g_malloc0(sizeof(*info));
1418 if (mc->is_default) {
1419 info->has_is_default = true;
1420 info->is_default = true;
1424 info->has_alias = true;
1425 info->alias = g_strdup(mc->alias);
1428 info->name = g_strdup(mc->name);
1429 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1430 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1432 entry = g_malloc0(sizeof(*entry));
1433 entry->value = info;
1434 entry->next = mach_list;
1438 g_slist_free(machines);
1442 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1444 ObjectProperty *prop;
1445 ObjectPropertyIterator iter;
1447 if (!qemu_opt_has_help_opt(opts)) {
1451 object_property_iter_init(&iter, OBJECT(machine));
1452 while ((prop = object_property_iter_next(&iter))) {
1457 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1458 prop->name, prop->type);
1459 if (prop->description) {
1460 printf(" (%s)\n", prop->description);
1469 struct vm_change_state_entry {
1470 VMChangeStateHandler *cb;
1472 QLIST_ENTRY (vm_change_state_entry) entries;
1475 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1477 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1480 VMChangeStateEntry *e;
1482 e = g_malloc0(sizeof (*e));
1486 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1490 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1492 QLIST_REMOVE (e, entries);
1496 void vm_state_notify(int running, RunState state)
1498 VMChangeStateEntry *e, *next;
1500 trace_vm_state_notify(running, state, RunState_str(state));
1502 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1503 e->cb(e->opaque, running, state);
1507 static ShutdownCause reset_requested;
1508 static ShutdownCause shutdown_requested;
1509 static int shutdown_signal;
1510 static pid_t shutdown_pid;
1511 static int powerdown_requested;
1512 static int debug_requested;
1513 static int suspend_requested;
1514 static bool preconfig_exit_requested = true;
1515 static WakeupReason wakeup_reason;
1516 static NotifierList powerdown_notifiers =
1517 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1518 static NotifierList suspend_notifiers =
1519 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1520 static NotifierList wakeup_notifiers =
1521 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1522 static NotifierList shutdown_notifiers =
1523 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1524 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1526 ShutdownCause qemu_shutdown_requested_get(void)
1528 return shutdown_requested;
1531 ShutdownCause qemu_reset_requested_get(void)
1533 return reset_requested;
1536 static int qemu_shutdown_requested(void)
1538 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1541 static void qemu_kill_report(void)
1543 if (!qtest_driver() && shutdown_signal) {
1544 if (shutdown_pid == 0) {
1545 /* This happens for eg ^C at the terminal, so it's worth
1546 * avoiding printing an odd message in that case.
1548 error_report("terminating on signal %d", shutdown_signal);
1550 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1552 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1553 shutdown_signal, shutdown_pid,
1554 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1555 g_free(shutdown_cmd);
1557 shutdown_signal = 0;
1561 static ShutdownCause qemu_reset_requested(void)
1563 ShutdownCause r = reset_requested;
1565 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1566 reset_requested = SHUTDOWN_CAUSE_NONE;
1569 return SHUTDOWN_CAUSE_NONE;
1572 static int qemu_suspend_requested(void)
1574 int r = suspend_requested;
1575 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1576 suspend_requested = 0;
1582 static WakeupReason qemu_wakeup_requested(void)
1584 return wakeup_reason;
1587 static int qemu_powerdown_requested(void)
1589 int r = powerdown_requested;
1590 powerdown_requested = 0;
1594 static int qemu_debug_requested(void)
1596 int r = debug_requested;
1597 debug_requested = 0;
1601 void qemu_exit_preconfig_request(void)
1603 preconfig_exit_requested = true;
1607 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1609 void qemu_system_reset(ShutdownCause reason)
1613 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1615 cpu_synchronize_all_states();
1617 if (mc && mc->reset) {
1620 qemu_devices_reset();
1622 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1623 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1625 cpu_synchronize_all_post_reset();
1628 void qemu_system_guest_panicked(GuestPanicInformation *info)
1630 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1633 current_cpu->crash_occurred = true;
1635 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1637 vm_stop(RUN_STATE_GUEST_PANICKED);
1639 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1641 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1645 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1646 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1647 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1648 info->u.hyper_v.arg1,
1649 info->u.hyper_v.arg2,
1650 info->u.hyper_v.arg3,
1651 info->u.hyper_v.arg4,
1652 info->u.hyper_v.arg5);
1653 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1654 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1655 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1657 S390CrashReason_str(info->u.s390.reason),
1658 info->u.s390.psw_mask,
1659 info->u.s390.psw_addr);
1661 qapi_free_GuestPanicInformation(info);
1665 void qemu_system_reset_request(ShutdownCause reason)
1667 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1668 shutdown_requested = reason;
1670 reset_requested = reason;
1673 qemu_notify_event();
1676 static void qemu_system_suspend(void)
1679 notifier_list_notify(&suspend_notifiers, NULL);
1680 runstate_set(RUN_STATE_SUSPENDED);
1681 qapi_event_send_suspend();
1684 void qemu_system_suspend_request(void)
1686 if (runstate_check(RUN_STATE_SUSPENDED)) {
1689 suspend_requested = 1;
1691 qemu_notify_event();
1694 void qemu_register_suspend_notifier(Notifier *notifier)
1696 notifier_list_add(&suspend_notifiers, notifier);
1699 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1701 trace_system_wakeup_request(reason);
1703 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1705 "Unable to wake up: guest is not in suspended state");
1708 if (!(wakeup_reason_mask & (1 << reason))) {
1711 runstate_set(RUN_STATE_RUNNING);
1712 wakeup_reason = reason;
1713 qemu_notify_event();
1716 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1719 wakeup_reason_mask |= (1 << reason);
1721 wakeup_reason_mask &= ~(1 << reason);
1725 void qemu_register_wakeup_notifier(Notifier *notifier)
1727 notifier_list_add(&wakeup_notifiers, notifier);
1730 void qemu_register_wakeup_support(void)
1732 wakeup_suspend_enabled = true;
1735 bool qemu_wakeup_suspend_enabled(void)
1737 return wakeup_suspend_enabled;
1740 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1742 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1743 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1748 void qemu_system_killed(int signal, pid_t pid)
1750 shutdown_signal = signal;
1754 /* Cannot call qemu_system_shutdown_request directly because
1755 * we are in a signal handler.
1757 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1758 qemu_notify_event();
1761 void qemu_system_shutdown_request(ShutdownCause reason)
1763 trace_qemu_system_shutdown_request(reason);
1764 replay_shutdown_request(reason);
1765 shutdown_requested = reason;
1766 qemu_notify_event();
1769 static void qemu_system_powerdown(void)
1771 qapi_event_send_powerdown();
1772 notifier_list_notify(&powerdown_notifiers, NULL);
1775 static void qemu_system_shutdown(ShutdownCause cause)
1777 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1778 notifier_list_notify(&shutdown_notifiers, &cause);
1781 void qemu_system_powerdown_request(void)
1783 trace_qemu_system_powerdown_request();
1784 powerdown_requested = 1;
1785 qemu_notify_event();
1788 void qemu_register_powerdown_notifier(Notifier *notifier)
1790 notifier_list_add(&powerdown_notifiers, notifier);
1793 void qemu_register_shutdown_notifier(Notifier *notifier)
1795 notifier_list_add(&shutdown_notifiers, notifier);
1798 void qemu_system_debug_request(void)
1800 debug_requested = 1;
1801 qemu_notify_event();
1804 static bool main_loop_should_exit(void)
1807 ShutdownCause request;
1809 if (preconfig_exit_requested) {
1810 if (runstate_check(RUN_STATE_PRECONFIG)) {
1811 runstate_set(RUN_STATE_PRELAUNCH);
1813 preconfig_exit_requested = false;
1816 if (qemu_debug_requested()) {
1817 vm_stop(RUN_STATE_DEBUG);
1819 if (qemu_suspend_requested()) {
1820 qemu_system_suspend();
1822 request = qemu_shutdown_requested();
1825 qemu_system_shutdown(request);
1827 vm_stop(RUN_STATE_SHUTDOWN);
1832 request = qemu_reset_requested();
1835 qemu_system_reset(request);
1837 if (!runstate_check(RUN_STATE_RUNNING) &&
1838 !runstate_check(RUN_STATE_INMIGRATE)) {
1839 runstate_set(RUN_STATE_PRELAUNCH);
1842 if (qemu_wakeup_requested()) {
1844 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1845 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1846 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1848 qapi_event_send_wakeup();
1850 if (qemu_powerdown_requested()) {
1851 qemu_system_powerdown();
1853 if (qemu_vmstop_requested(&r)) {
1859 static void main_loop(void)
1861 #ifdef CONFIG_PROFILER
1864 while (!main_loop_should_exit()) {
1865 #ifdef CONFIG_PROFILER
1866 ti = profile_getclock();
1868 main_loop_wait(false);
1869 #ifdef CONFIG_PROFILER
1870 dev_time += profile_getclock() - ti;
1875 static void version(void)
1877 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1878 QEMU_COPYRIGHT "\n");
1881 static void help(int exitcode)
1884 printf("usage: %s [options] [disk_image]\n\n"
1885 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1886 error_get_progname());
1888 #define QEMU_OPTIONS_GENERATE_HELP
1889 #include "qemu-options-wrapper.h"
1891 printf("\nDuring emulation, the following keys are useful:\n"
1892 "ctrl-alt-f toggle full screen\n"
1893 "ctrl-alt-n switch to virtual console 'n'\n"
1894 "ctrl-alt toggle mouse and keyboard grab\n"
1896 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1898 QEMU_HELP_BOTTOM "\n");
1903 #define HAS_ARG 0x0001
1905 typedef struct QEMUOption {
1912 static const QEMUOption qemu_options[] = {
1913 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1914 #define QEMU_OPTIONS_GENERATE_OPTIONS
1915 #include "qemu-options-wrapper.h"
1919 typedef struct VGAInterfaceInfo {
1920 const char *opt_name; /* option name */
1921 const char *name; /* human-readable name */
1922 /* Class names indicating that support is available.
1923 * If no class is specified, the interface is always available */
1924 const char *class_names[2];
1927 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1930 .name = "no graphic card",
1934 .name = "standard VGA",
1935 .class_names = { "VGA", "isa-vga" },
1938 .opt_name = "cirrus",
1939 .name = "Cirrus VGA",
1940 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1943 .opt_name = "vmware",
1944 .name = "VMWare SVGA",
1945 .class_names = { "vmware-svga" },
1948 .opt_name = "virtio",
1949 .name = "Virtio VGA",
1950 .class_names = { "virtio-vga" },
1955 .class_names = { "qxl-vga" },
1959 .name = "TCX framebuffer",
1960 .class_names = { "SUNW,tcx" },
1964 .name = "CG3 framebuffer",
1965 .class_names = { "cgthree" },
1968 .opt_name = "xenfb",
1969 .name = "Xen paravirtualized framebuffer",
1973 static bool vga_interface_available(VGAInterfaceType t)
1975 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1977 assert(t < VGA_TYPE_MAX);
1978 return !ti->class_names[0] ||
1979 object_class_by_name(ti->class_names[0]) ||
1980 object_class_by_name(ti->class_names[1]);
1984 get_default_vga_model(const MachineClass *machine_class)
1986 if (machine_class->default_display) {
1987 return machine_class->default_display;
1988 } else if (vga_interface_available(VGA_CIRRUS)) {
1990 } else if (vga_interface_available(VGA_STD)) {
1997 static void select_vgahw(const MachineClass *machine_class, const char *p)
2002 if (g_str_equal(p, "help")) {
2003 const char *def = get_default_vga_model(machine_class);
2005 for (t = 0; t < VGA_TYPE_MAX; t++) {
2006 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2008 if (vga_interface_available(t) && ti->opt_name) {
2009 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
2010 g_str_equal(ti->opt_name, def) ? " (default)" : "");
2016 assert(vga_interface_type == VGA_NONE);
2017 for (t = 0; t < VGA_TYPE_MAX; t++) {
2018 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2019 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2020 if (!vga_interface_available(t)) {
2021 error_report("%s not available", ti->name);
2024 vga_interface_type = t;
2028 if (t == VGA_TYPE_MAX) {
2030 error_report("unknown vga type: %s", p);
2034 const char *nextopt;
2036 if (strstart(opts, ",retrace=", &nextopt)) {
2038 if (strstart(opts, "dumb", &nextopt))
2039 vga_retrace_method = VGA_RETRACE_DUMB;
2040 else if (strstart(opts, "precise", &nextopt))
2041 vga_retrace_method = VGA_RETRACE_PRECISE;
2042 else goto invalid_vga;
2043 } else goto invalid_vga;
2048 static void parse_display_qapi(const char *optarg)
2050 DisplayOptions *opts;
2053 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2055 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2056 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2058 qapi_free_DisplayOptions(opts);
2062 DisplayOptions *qmp_query_display_options(Error **errp)
2064 return QAPI_CLONE(DisplayOptions, &dpy);
2067 static void parse_display(const char *p)
2071 if (strstart(p, "sdl", &opts)) {
2073 * sdl DisplayType needs hand-crafted parser instead of
2074 * parse_display_qapi() due to some options not in
2075 * DisplayOptions, specifically:
2077 * Already deprecated.
2078 * - ctrl_grab + alt_grab
2079 * Not clear yet what happens to them long-term. Should
2080 * replaced by something better or deprecated and dropped.
2082 dpy.type = DISPLAY_TYPE_SDL;
2084 const char *nextopt;
2086 if (strstart(opts, ",alt_grab=", &nextopt)) {
2088 if (strstart(opts, "on", &nextopt)) {
2090 } else if (strstart(opts, "off", &nextopt)) {
2093 goto invalid_sdl_args;
2095 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2097 if (strstart(opts, "on", &nextopt)) {
2099 } else if (strstart(opts, "off", &nextopt)) {
2102 goto invalid_sdl_args;
2104 } else if (strstart(opts, ",window_close=", &nextopt)) {
2106 dpy.has_window_close = true;
2107 if (strstart(opts, "on", &nextopt)) {
2108 dpy.window_close = true;
2109 } else if (strstart(opts, "off", &nextopt)) {
2110 dpy.window_close = false;
2112 goto invalid_sdl_args;
2114 } else if (strstart(opts, ",gl=", &nextopt)) {
2117 if (strstart(opts, "on", &nextopt)) {
2118 dpy.gl = DISPLAYGL_MODE_ON;
2119 } else if (strstart(opts, "core", &nextopt)) {
2120 dpy.gl = DISPLAYGL_MODE_CORE;
2121 } else if (strstart(opts, "es", &nextopt)) {
2122 dpy.gl = DISPLAYGL_MODE_ES;
2123 } else if (strstart(opts, "off", &nextopt)) {
2124 dpy.gl = DISPLAYGL_MODE_OFF;
2126 goto invalid_sdl_args;
2130 error_report("invalid SDL option string");
2135 } else if (strstart(p, "vnc", &opts)) {
2137 * vnc isn't a (local) DisplayType but a protocol for remote
2141 vnc_parse(opts + 1, &error_fatal);
2143 error_report("VNC requires a display argument vnc=<display>");
2147 parse_display_qapi(p);
2151 char *qemu_find_file(int type, const char *name)
2157 /* Try the name as a straight path first */
2158 if (access(name, R_OK) == 0) {
2159 trace_load_file(name, name);
2160 return g_strdup(name);
2164 case QEMU_FILE_TYPE_BIOS:
2167 case QEMU_FILE_TYPE_KEYMAP:
2168 subdir = "keymaps/";
2174 for (i = 0; i < data_dir_idx; i++) {
2175 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2176 if (access(buf, R_OK) == 0) {
2177 trace_load_file(name, buf);
2185 static void qemu_add_data_dir(const char *path)
2192 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2195 for (i = 0; i < data_dir_idx; i++) {
2196 if (strcmp(data_dir[i], path) == 0) {
2197 return; /* duplicate */
2200 data_dir[data_dir_idx++] = g_strdup(path);
2203 static inline bool nonempty_str(const char *str)
2208 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2212 const char *name, *file, *str;
2213 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2215 if (fw_cfg == NULL) {
2216 error_setg(errp, "fw_cfg device not available");
2219 name = qemu_opt_get(opts, "name");
2220 file = qemu_opt_get(opts, "file");
2221 str = qemu_opt_get(opts, "string");
2223 /* we need name and either a file or the content string */
2224 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2225 error_setg(errp, "invalid argument(s)");
2228 if (nonempty_str(file) && nonempty_str(str)) {
2229 error_setg(errp, "file and string are mutually exclusive");
2232 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2233 error_setg(errp, "name too long (max. %d char)",
2234 FW_CFG_MAX_FILE_PATH - 1);
2237 if (strncmp(name, "opt/", 4) != 0) {
2238 warn_report("externally provided fw_cfg item names "
2239 "should be prefixed with \"opt/\"");
2241 if (nonempty_str(str)) {
2242 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2243 buf = g_memdup(str, size);
2246 if (!g_file_get_contents(file, &buf, &size, &err)) {
2247 error_setg(errp, "can't load %s: %s", file, err->message);
2252 /* For legacy, keep user files in a specific global order. */
2253 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2254 fw_cfg_add_file(fw_cfg, name, buf, size);
2255 fw_cfg_reset_order_override(fw_cfg);
2259 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2261 return qdev_device_help(opts);
2264 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2268 dev = qdev_device_add(opts, errp);
2272 object_unref(OBJECT(dev));
2276 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2278 Error *local_err = NULL;
2280 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2282 error_propagate(errp, local_err);
2290 #ifdef CONFIG_VIRTFS
2291 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2293 return qemu_fsdev_add(opts, errp);
2297 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2300 const char *chardev;
2304 mode = qemu_opt_get(opts, "mode");
2308 if (strcmp(mode, "readline") == 0) {
2309 flags = MONITOR_USE_READLINE;
2310 } else if (strcmp(mode, "control") == 0) {
2311 flags = MONITOR_USE_CONTROL;
2313 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2317 if (qemu_opt_get_bool(opts, "pretty", 0))
2318 flags |= MONITOR_USE_PRETTY;
2320 chardev = qemu_opt_get(opts, "chardev");
2322 error_report("chardev is required");
2325 chr = qemu_chr_find(chardev);
2327 error_setg(errp, "chardev \"%s\" not found", chardev);
2331 monitor_init(chr, flags);
2335 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2337 static int monitor_device_index = 0;
2342 if (strstart(optarg, "chardev:", &p)) {
2343 snprintf(label, sizeof(label), "%s", p);
2345 snprintf(label, sizeof(label), "compat_monitor%d",
2346 monitor_device_index);
2347 opts = qemu_chr_parse_compat(label, optarg, true);
2349 error_report("parse error: %s", optarg);
2354 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2355 qemu_opt_set(opts, "mode", mode, &error_abort);
2356 qemu_opt_set(opts, "chardev", label, &error_abort);
2357 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2358 monitor_device_index++;
2361 struct device_config {
2363 DEV_USB, /* -usbdevice */
2365 DEV_SERIAL, /* -serial */
2366 DEV_PARALLEL, /* -parallel */
2367 DEV_DEBUGCON, /* -debugcon */
2368 DEV_GDB, /* -gdb, -s */
2369 DEV_SCLP, /* s390 sclp */
2371 const char *cmdline;
2373 QTAILQ_ENTRY(device_config) next;
2376 static QTAILQ_HEAD(, device_config) device_configs =
2377 QTAILQ_HEAD_INITIALIZER(device_configs);
2379 static void add_device_config(int type, const char *cmdline)
2381 struct device_config *conf;
2383 conf = g_malloc0(sizeof(*conf));
2385 conf->cmdline = cmdline;
2386 loc_save(&conf->loc);
2387 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2390 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2392 struct device_config *conf;
2395 QTAILQ_FOREACH(conf, &device_configs, next) {
2396 if (conf->type != type)
2398 loc_push_restore(&conf->loc);
2399 rc = func(conf->cmdline);
2400 loc_pop(&conf->loc);
2408 static int serial_parse(const char *devname)
2410 int index = num_serial_hds;
2413 if (strcmp(devname, "none") == 0)
2415 snprintf(label, sizeof(label), "serial%d", index);
2416 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2418 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2419 if (!serial_hds[index]) {
2420 error_report("could not connect serial device"
2421 " to character backend '%s'", devname);
2428 Chardev *serial_hd(int i)
2431 if (i < num_serial_hds) {
2432 return serial_hds[i];
2437 int serial_max_hds(void)
2439 return num_serial_hds;
2442 static int parallel_parse(const char *devname)
2444 static int index = 0;
2447 if (strcmp(devname, "none") == 0)
2449 if (index == MAX_PARALLEL_PORTS) {
2450 error_report("too many parallel ports");
2453 snprintf(label, sizeof(label), "parallel%d", index);
2454 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2455 if (!parallel_hds[index]) {
2456 error_report("could not connect parallel device"
2457 " to character backend '%s'", devname);
2464 static int debugcon_parse(const char *devname)
2468 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2469 error_report("invalid character backend '%s'", devname);
2472 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2474 error_report("already have a debugcon device");
2477 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2478 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2482 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2484 const MachineClass *mc1 = a, *mc2 = b;
2487 if (mc1->family == NULL) {
2488 if (mc2->family == NULL) {
2489 /* Compare standalone machine types against each other; they sort
2490 * in increasing order.
2492 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2493 object_class_get_name(OBJECT_CLASS(mc2)));
2496 /* Standalone machine types sort after families. */
2500 if (mc2->family == NULL) {
2501 /* Families sort before standalone machine types. */
2505 /* Families sort between each other alphabetically increasingly. */
2506 res = strcmp(mc1->family, mc2->family);
2511 /* Within the same family, machine types sort in decreasing order. */
2512 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2513 object_class_get_name(OBJECT_CLASS(mc1)));
2516 static MachineClass *machine_parse(const char *name, GSList *machines)
2521 if (is_help_option(name)) {
2522 printf("Supported machines are:\n");
2523 machines = g_slist_sort(machines, machine_class_cmp);
2524 for (el = machines; el; el = el->next) {
2525 MachineClass *mc = el->data;
2527 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2529 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2530 mc->is_default ? " (default)" : "",
2531 mc->deprecation_reason ? " (deprecated)" : "");
2536 mc = find_machine(name, machines);
2538 error_report("unsupported machine type");
2539 error_printf("Use -machine help to list supported machines\n");
2545 void qemu_add_exit_notifier(Notifier *notify)
2547 notifier_list_add(&exit_notifiers, notify);
2550 void qemu_remove_exit_notifier(Notifier *notify)
2552 notifier_remove(notify);
2555 static void qemu_run_exit_notifiers(void)
2557 notifier_list_notify(&exit_notifiers, NULL);
2560 static const char *pid_file;
2561 static Notifier qemu_unlink_pidfile_notifier;
2563 static void qemu_unlink_pidfile(Notifier *n, void *data)
2570 bool machine_init_done;
2572 void qemu_add_machine_init_done_notifier(Notifier *notify)
2574 notifier_list_add(&machine_init_done_notifiers, notify);
2575 if (machine_init_done) {
2576 notify->notify(notify, NULL);
2580 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2582 notifier_remove(notify);
2585 static void qemu_run_machine_init_done_notifiers(void)
2587 machine_init_done = true;
2588 notifier_list_notify(&machine_init_done_notifiers, NULL);
2591 static const QEMUOption *lookup_opt(int argc, char **argv,
2592 const char **poptarg, int *poptind)
2594 const QEMUOption *popt;
2595 int optind = *poptind;
2596 char *r = argv[optind];
2599 loc_set_cmdline(argv, optind, 1);
2601 /* Treat --foo the same as -foo. */
2604 popt = qemu_options;
2607 error_report("invalid option");
2610 if (!strcmp(popt->name, r + 1))
2614 if (popt->flags & HAS_ARG) {
2615 if (optind >= argc) {
2616 error_report("requires an argument");
2619 optarg = argv[optind++];
2620 loc_set_cmdline(argv, optind - 2, 2);
2631 static MachineClass *select_machine(void)
2633 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2634 MachineClass *machine_class = find_default_machine(machines);
2639 loc_push_none(&loc);
2641 opts = qemu_get_machine_opts();
2642 qemu_opts_loc_restore(opts);
2644 optarg = qemu_opt_get(opts, "type");
2646 machine_class = machine_parse(optarg, machines);
2649 if (!machine_class) {
2650 error_report("No machine specified, and there is no default");
2651 error_printf("Use -machine help to list supported machines\n");
2656 g_slist_free(machines);
2657 return machine_class;
2660 static int machine_set_property(void *opaque,
2661 const char *name, const char *value,
2664 Object *obj = OBJECT(opaque);
2665 Error *local_err = NULL;
2668 if (strcmp(name, "type") == 0) {
2672 qom_name = g_strdup(name);
2673 for (p = qom_name; *p; p++) {
2679 object_property_parse(obj, value, qom_name, &local_err);
2683 error_propagate(errp, local_err);
2692 * Initial object creation happens before all other
2693 * QEMU data types are created. The majority of objects
2694 * can be created at this point. The rng-egd object
2695 * cannot be created here, as it depends on the chardev
2698 static bool object_create_initial(const char *type, QemuOpts *opts)
2702 if (is_help_option(type)) {
2705 printf("List of user creatable objects:\n");
2706 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2707 for (l = list; l != NULL; l = l->next) {
2708 ObjectClass *oc = OBJECT_CLASS(l->data);
2709 printf(" %s\n", object_class_get_name(oc));
2715 klass = object_class_by_name(type);
2716 if (klass && qemu_opt_has_help_opt(opts)) {
2717 ObjectPropertyIterator iter;
2718 ObjectProperty *prop;
2719 GPtrArray *array = g_ptr_array_new();
2722 object_class_property_iter_init(&iter, klass);
2723 while ((prop = object_property_iter_next(&iter))) {
2730 str = g_string_new(NULL);
2731 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2732 if (prop->description) {
2733 if (str->len < 24) {
2734 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2736 g_string_append_printf(str, " - %s", prop->description);
2738 g_ptr_array_add(array, g_string_free(str, false));
2740 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2741 if (array->len > 0) {
2742 printf("%s options:\n", type);
2744 printf("There are no options for %s.\n", type);
2746 for (i = 0; i < array->len; i++) {
2747 printf("%s\n", (char *)array->pdata[i]);
2749 g_ptr_array_set_free_func(array, g_free);
2750 g_ptr_array_free(array, true);
2755 * Objects should not be made "delayed" without a reason. If you
2756 * add one, state the reason in a comment!
2759 /* Reason: rng-egd property "chardev" */
2760 if (g_str_equal(type, "rng-egd")) {
2764 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2765 /* Reason: cryptodev-vhost-user property "chardev" */
2766 if (g_str_equal(type, "cryptodev-vhost-user")) {
2772 * Reason: filter-* property "netdev" etc.
2774 if (g_str_equal(type, "filter-buffer") ||
2775 g_str_equal(type, "filter-dump") ||
2776 g_str_equal(type, "filter-mirror") ||
2777 g_str_equal(type, "filter-redirector") ||
2778 g_str_equal(type, "colo-compare") ||
2779 g_str_equal(type, "filter-rewriter") ||
2780 g_str_equal(type, "filter-replay")) {
2784 /* Memory allocation by backends needs to be done
2785 * after configure_accelerator() (due to the tcg_enabled()
2786 * checks at memory_region_init_*()).
2788 * Also, allocation of large amounts of memory may delay
2789 * chardev initialization for too long, and trigger timeouts
2790 * on software that waits for a monitor socket to be created
2793 if (g_str_has_prefix(type, "memory-backend-")) {
2802 * The remainder of object creation happens after the
2803 * creation of chardev, fsdev, net clients and device data types.
2805 static bool object_create_delayed(const char *type, QemuOpts *opts)
2807 return !object_create_initial(type, opts);
2811 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2815 const char *mem_str;
2816 const ram_addr_t default_ram_size = mc->default_ram_size;
2817 QemuOpts *opts = qemu_find_opts_singleton("memory");
2820 loc_push_none(&loc);
2821 qemu_opts_loc_restore(opts);
2824 mem_str = qemu_opt_get(opts, "size");
2827 error_report("missing 'size' option value");
2831 sz = qemu_opt_get_size(opts, "size", ram_size);
2833 /* Fix up legacy suffix-less format */
2834 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2835 uint64_t overflow_check = sz;
2838 if (sz / MiB != overflow_check) {
2839 error_report("too large 'size' option value");
2845 /* backward compatibility behaviour for case "-m 0" */
2847 sz = default_ram_size;
2850 sz = QEMU_ALIGN_UP(sz, 8192);
2852 if (ram_size != sz) {
2853 error_report("ram size too large");
2857 /* store value for the future use */
2858 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2859 *maxram_size = ram_size;
2861 if (qemu_opt_get(opts, "maxmem")) {
2864 sz = qemu_opt_get_size(opts, "maxmem", 0);
2865 slots = qemu_opt_get_number(opts, "slots", 0);
2866 if (sz < ram_size) {
2867 error_report("invalid value of -m option maxmem: "
2868 "maximum memory size (0x%" PRIx64 ") must be at least "
2869 "the initial memory size (0x" RAM_ADDR_FMT ")",
2872 } else if (slots && sz == ram_size) {
2873 error_report("invalid value of -m option maxmem: "
2874 "memory slots were specified but maximum memory size "
2875 "(0x%" PRIx64 ") is equal to the initial memory size "
2876 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2882 } else if (qemu_opt_get(opts, "slots")) {
2883 error_report("invalid -m option value: missing 'maxmem' option");
2890 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2894 g = g_malloc0(sizeof(*g));
2895 g->driver = qemu_opt_get(opts, "driver");
2896 g->property = qemu_opt_get(opts, "property");
2897 g->value = qemu_opt_get(opts, "value");
2898 qdev_prop_register_global(g);
2902 static int qemu_read_default_config_file(void)
2906 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2907 if (ret < 0 && ret != -ENOENT) {
2914 static void user_register_global_props(void)
2916 qemu_opts_foreach(qemu_find_opts("global"),
2917 global_init_func, NULL, NULL);
2920 int main(int argc, char **argv, char **envp)
2923 int snapshot, linux_boot;
2924 const char *initrd_filename;
2925 const char *kernel_filename, *kernel_cmdline;
2926 const char *boot_order = NULL;
2927 const char *boot_once = NULL;
2929 QemuOpts *opts, *machine_opts;
2930 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2931 QemuOptsList *olist;
2934 const char *loadvm = NULL;
2935 MachineClass *machine_class;
2936 const char *cpu_option;
2937 const char *vga_model = NULL;
2938 const char *qtest_chrdev = NULL;
2939 const char *qtest_log = NULL;
2940 const char *incoming = NULL;
2941 bool userconfig = true;
2942 bool nographic = false;
2943 int display_remote = 0;
2944 const char *log_mask = NULL;
2945 const char *log_file = NULL;
2946 char *trace_file = NULL;
2947 ram_addr_t maxram_size;
2948 uint64_t ram_slots = 0;
2949 FILE *vmstate_dump_file = NULL;
2950 Error *main_loop_err = NULL;
2952 bool list_data_dirs = false;
2954 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2956 error_init(argv[0]);
2957 module_call_init(MODULE_INIT_TRACE);
2959 qemu_init_cpu_list();
2960 qemu_init_cpu_loop();
2962 qemu_mutex_lock_iothread();
2964 atexit(qemu_run_exit_notifiers);
2965 qemu_init_exec_dir(argv[0]);
2967 module_call_init(MODULE_INIT_QOM);
2969 qemu_add_opts(&qemu_drive_opts);
2970 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2971 qemu_add_drive_opts(&qemu_common_drive_opts);
2972 qemu_add_drive_opts(&qemu_drive_opts);
2973 qemu_add_drive_opts(&bdrv_runtime_opts);
2974 qemu_add_opts(&qemu_chardev_opts);
2975 qemu_add_opts(&qemu_device_opts);
2976 qemu_add_opts(&qemu_netdev_opts);
2977 qemu_add_opts(&qemu_nic_opts);
2978 qemu_add_opts(&qemu_net_opts);
2979 qemu_add_opts(&qemu_rtc_opts);
2980 qemu_add_opts(&qemu_global_opts);
2981 qemu_add_opts(&qemu_mon_opts);
2982 qemu_add_opts(&qemu_trace_opts);
2983 qemu_add_opts(&qemu_option_rom_opts);
2984 qemu_add_opts(&qemu_machine_opts);
2985 qemu_add_opts(&qemu_accel_opts);
2986 qemu_add_opts(&qemu_mem_opts);
2987 qemu_add_opts(&qemu_smp_opts);
2988 qemu_add_opts(&qemu_boot_opts);
2989 qemu_add_opts(&qemu_add_fd_opts);
2990 qemu_add_opts(&qemu_object_opts);
2991 qemu_add_opts(&qemu_tpmdev_opts);
2992 qemu_add_opts(&qemu_realtime_opts);
2993 qemu_add_opts(&qemu_overcommit_opts);
2994 qemu_add_opts(&qemu_msg_opts);
2995 qemu_add_opts(&qemu_name_opts);
2996 qemu_add_opts(&qemu_numa_opts);
2997 qemu_add_opts(&qemu_icount_opts);
2998 qemu_add_opts(&qemu_semihosting_config_opts);
2999 qemu_add_opts(&qemu_fw_cfg_opts);
3000 module_call_init(MODULE_INIT_OPTS);
3003 precopy_infrastructure_init();
3004 postcopy_infrastructure_init();
3005 monitor_init_globals();
3007 if (qcrypto_init(&err) < 0) {
3008 error_reportf_err(err, "cannot initialize crypto: ");
3012 QLIST_INIT (&vm_change_state_head);
3013 os_setup_early_signal_handling();
3020 bdrv_init_with_whitelist();
3024 /* first pass of option parsing */
3026 while (optind < argc) {
3027 if (argv[optind][0] != '-') {
3031 const QEMUOption *popt;
3033 popt = lookup_opt(argc, argv, &optarg, &optind);
3034 switch (popt->index) {
3035 case QEMU_OPTION_nouserconfig:
3043 if (qemu_read_default_config_file() < 0) {
3048 /* second pass of option parsing */
3053 if (argv[optind][0] != '-') {
3054 loc_set_cmdline(argv, optind, 1);
3055 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3057 const QEMUOption *popt;
3059 popt = lookup_opt(argc, argv, &optarg, &optind);
3060 if (!(popt->arch_mask & arch_type)) {
3061 error_report("Option not supported for this target");
3064 switch(popt->index) {
3065 case QEMU_OPTION_cpu:
3066 /* hw initialization will check this */
3067 cpu_option = optarg;
3069 case QEMU_OPTION_hda:
3070 case QEMU_OPTION_hdb:
3071 case QEMU_OPTION_hdc:
3072 case QEMU_OPTION_hdd:
3073 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3076 case QEMU_OPTION_blockdev:
3079 BlockdevOptionsQueueEntry *bdo;
3081 v = qobject_input_visitor_new_str(optarg, "driver",
3084 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3085 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3088 loc_save(&bdo->loc);
3089 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3092 case QEMU_OPTION_drive:
3093 if (drive_def(optarg) == NULL) {
3097 case QEMU_OPTION_set:
3098 if (qemu_set_option(optarg) != 0)
3101 case QEMU_OPTION_global:
3102 if (qemu_global_option(optarg) != 0)
3105 case QEMU_OPTION_mtdblock:
3106 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3108 case QEMU_OPTION_sd:
3109 drive_add(IF_SD, -1, optarg, SD_OPTS);
3111 case QEMU_OPTION_pflash:
3112 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3114 case QEMU_OPTION_snapshot:
3117 case QEMU_OPTION_numa:
3118 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3124 case QEMU_OPTION_display:
3125 parse_display(optarg);
3127 case QEMU_OPTION_nographic:
3128 olist = qemu_find_opts("machine");
3129 qemu_opts_parse_noisily(olist, "graphics=off", false);
3131 dpy.type = DISPLAY_TYPE_NONE;
3133 case QEMU_OPTION_curses:
3134 #ifdef CONFIG_CURSES
3135 dpy.type = DISPLAY_TYPE_CURSES;
3137 error_report("curses or iconv support is disabled");
3141 case QEMU_OPTION_portrait:
3142 graphic_rotate = 90;
3144 case QEMU_OPTION_rotate:
3145 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3146 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3147 graphic_rotate != 180 && graphic_rotate != 270) {
3148 error_report("only 90, 180, 270 deg rotation is available");
3152 case QEMU_OPTION_kernel:
3153 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3156 case QEMU_OPTION_initrd:
3157 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3160 case QEMU_OPTION_append:
3161 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3164 case QEMU_OPTION_dtb:
3165 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3168 case QEMU_OPTION_cdrom:
3169 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3171 case QEMU_OPTION_boot:
3172 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3178 case QEMU_OPTION_fda:
3179 case QEMU_OPTION_fdb:
3180 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3183 case QEMU_OPTION_no_fd_bootchk:
3186 case QEMU_OPTION_netdev:
3188 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3192 case QEMU_OPTION_nic:
3194 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3198 case QEMU_OPTION_net:
3200 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3204 #ifdef CONFIG_LIBISCSI
3205 case QEMU_OPTION_iscsi:
3206 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3213 case QEMU_OPTION_bt:
3214 warn_report("The bluetooth subsystem is deprecated and will "
3215 "be removed soon. If the bluetooth subsystem is "
3216 "still useful for you, please send a mail to "
3218 add_device_config(DEV_BT, optarg);
3220 case QEMU_OPTION_audio_help:
3221 audio_legacy_help();
3224 case QEMU_OPTION_audiodev:
3225 audio_parse_option(optarg);
3227 case QEMU_OPTION_soundhw:
3228 select_soundhw (optarg);
3233 case QEMU_OPTION_version:
3238 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3245 case QEMU_OPTION_tpmdev:
3246 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3251 case QEMU_OPTION_mempath:
3254 case QEMU_OPTION_mem_prealloc:
3263 case QEMU_OPTION_DFILTER:
3264 qemu_set_dfilter_ranges(optarg, &error_fatal);
3266 case QEMU_OPTION_seed:
3267 qemu_guest_random_seed_main(optarg, &error_fatal);
3270 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3272 case QEMU_OPTION_gdb:
3273 add_device_config(DEV_GDB, optarg);
3276 if (is_help_option(optarg)) {
3277 list_data_dirs = true;
3279 qemu_add_data_dir(optarg);
3282 case QEMU_OPTION_bios:
3283 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3286 case QEMU_OPTION_singlestep:
3293 keyboard_layout = optarg;
3295 case QEMU_OPTION_vga:
3304 w = strtol(p, (char **)&p, 10);
3307 error_report("invalid resolution or depth");
3313 h = strtol(p, (char **)&p, 10);
3318 depth = strtol(p, (char **)&p, 10);
3319 if (depth != 8 && depth != 15 && depth != 16 &&
3320 depth != 24 && depth != 32)
3322 } else if (*p == '\0') {
3323 depth = graphic_depth;
3330 graphic_depth = depth;
3333 case QEMU_OPTION_echr:
3336 term_escape_char = strtol(optarg, &r, 0);
3338 printf("Bad argument to echr\n");
3341 case QEMU_OPTION_monitor:
3342 default_monitor = 0;
3343 if (strncmp(optarg, "none", 4)) {
3344 monitor_parse(optarg, "readline", false);
3347 case QEMU_OPTION_qmp:
3348 monitor_parse(optarg, "control", false);
3349 default_monitor = 0;
3351 case QEMU_OPTION_qmp_pretty:
3352 monitor_parse(optarg, "control", true);
3353 default_monitor = 0;
3355 case QEMU_OPTION_mon:
3356 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3361 default_monitor = 0;
3363 case QEMU_OPTION_chardev:
3364 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3370 case QEMU_OPTION_fsdev:
3371 olist = qemu_find_opts("fsdev");
3373 error_report("fsdev support is disabled");
3376 opts = qemu_opts_parse_noisily(olist, optarg, true);
3381 case QEMU_OPTION_virtfs: {
3384 const char *writeout, *sock_fd, *socket, *path, *security_model;
3386 olist = qemu_find_opts("virtfs");
3388 error_report("virtfs support is disabled");
3391 opts = qemu_opts_parse_noisily(olist, optarg, true);
3396 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3397 qemu_opt_get(opts, "mount_tag") == NULL) {
3398 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3401 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3402 qemu_opts_id(opts) ?:
3403 qemu_opt_get(opts, "mount_tag"),
3406 error_report("duplicate or invalid fsdev id: %s",
3407 qemu_opt_get(opts, "mount_tag"));
3411 writeout = qemu_opt_get(opts, "writeout");
3413 #ifdef CONFIG_SYNC_FILE_RANGE
3414 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3416 error_report("writeout=immediate not supported "
3417 "on this platform");
3421 qemu_opt_set(fsdev, "fsdriver",
3422 qemu_opt_get(opts, "fsdriver"), &error_abort);
3423 path = qemu_opt_get(opts, "path");
3425 qemu_opt_set(fsdev, "path", path, &error_abort);
3427 security_model = qemu_opt_get(opts, "security_model");
3428 if (security_model) {
3429 qemu_opt_set(fsdev, "security_model", security_model,
3432 socket = qemu_opt_get(opts, "socket");
3434 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3436 sock_fd = qemu_opt_get(opts, "sock_fd");
3438 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3441 qemu_opt_set_bool(fsdev, "readonly",
3442 qemu_opt_get_bool(opts, "readonly", 0),
3444 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3446 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3447 qemu_opt_set(device, "fsdev",
3448 qemu_opts_id(fsdev), &error_abort);
3449 qemu_opt_set(device, "mount_tag",
3450 qemu_opt_get(opts, "mount_tag"), &error_abort);
3453 case QEMU_OPTION_virtfs_synth: {
3457 warn_report("'-virtfs_synth' is deprecated, please use "
3458 "'-fsdev synth' and '-device virtio-9p-...' "
3461 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3464 error_report("duplicate option: %s", "virtfs_synth");
3467 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3469 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3471 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3472 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3473 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3476 case QEMU_OPTION_serial:
3477 add_device_config(DEV_SERIAL, optarg);
3479 if (strncmp(optarg, "mon:", 4) == 0) {
3480 default_monitor = 0;
3483 case QEMU_OPTION_watchdog:
3485 error_report("only one watchdog option may be given");
3490 case QEMU_OPTION_watchdog_action:
3491 if (select_watchdog_action(optarg) == -1) {
3492 error_report("unknown -watchdog-action parameter");
3496 case QEMU_OPTION_parallel:
3497 add_device_config(DEV_PARALLEL, optarg);
3498 default_parallel = 0;
3499 if (strncmp(optarg, "mon:", 4) == 0) {
3500 default_monitor = 0;
3503 case QEMU_OPTION_debugcon:
3504 add_device_config(DEV_DEBUGCON, optarg);
3506 case QEMU_OPTION_loadvm:
3509 case QEMU_OPTION_full_screen:
3510 dpy.has_full_screen = true;
3511 dpy.full_screen = true;
3513 case QEMU_OPTION_alt_grab:
3516 case QEMU_OPTION_ctrl_grab:
3519 case QEMU_OPTION_no_quit:
3520 dpy.has_window_close = true;
3521 dpy.window_close = false;
3523 case QEMU_OPTION_sdl:
3525 dpy.type = DISPLAY_TYPE_SDL;
3528 error_report("SDL support is disabled");
3531 case QEMU_OPTION_pidfile:
3534 case QEMU_OPTION_win2k_hack:
3535 win2k_install_hack = 1;
3537 case QEMU_OPTION_acpitable:
3538 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3543 acpi_table_add(opts, &error_fatal);
3545 case QEMU_OPTION_smbios:
3546 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3551 smbios_entry_add(opts, &error_fatal);
3553 case QEMU_OPTION_fwcfg:
3554 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3560 case QEMU_OPTION_preconfig:
3561 preconfig_exit_requested = false;
3563 case QEMU_OPTION_enable_kvm:
3564 olist = qemu_find_opts("machine");
3565 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3568 case QEMU_OPTION_machine:
3569 olist = qemu_find_opts("machine");
3570 opts = qemu_opts_parse_noisily(olist, optarg, true);
3575 case QEMU_OPTION_no_kvm:
3576 olist = qemu_find_opts("machine");
3577 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3579 case QEMU_OPTION_accel:
3580 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3582 optarg = qemu_opt_get(accel_opts, "accel");
3583 if (!optarg || is_help_option(optarg)) {
3584 printf("Accelerators supported in QEMU binary:\n");
3585 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3587 for (el = accel_list; el; el = el->next) {
3588 gchar *typename = g_strdup(object_class_get_name(
3589 OBJECT_CLASS(el->data)));
3590 /* omit qtest which is used for tests only */
3591 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3592 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3593 gchar **optname = g_strsplit(typename,
3594 ACCEL_CLASS_SUFFIX, 0);
3595 printf("%s\n", optname[0]);
3600 g_slist_free(accel_list);
3603 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3604 false, &error_abort);
3605 qemu_opt_set(opts, "accel", optarg, &error_abort);
3607 case QEMU_OPTION_usb:
3608 olist = qemu_find_opts("machine");
3609 qemu_opts_parse_noisily(olist, "usb=on", false);
3611 case QEMU_OPTION_usbdevice:
3612 error_report("'-usbdevice' is deprecated, please use "
3613 "'-device usb-...' instead");
3614 olist = qemu_find_opts("machine");
3615 qemu_opts_parse_noisily(olist, "usb=on", false);
3616 add_device_config(DEV_USB, optarg);
3618 case QEMU_OPTION_device:
3619 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3624 case QEMU_OPTION_smp:
3625 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3630 case QEMU_OPTION_vnc:
3631 vnc_parse(optarg, &error_fatal);
3633 case QEMU_OPTION_no_acpi:
3636 case QEMU_OPTION_no_hpet:
3639 case QEMU_OPTION_no_reboot:
3642 case QEMU_OPTION_no_shutdown:
3645 case QEMU_OPTION_show_cursor:
3648 case QEMU_OPTION_uuid:
3649 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3650 error_report("failed to parse UUID string: wrong format");
3653 qemu_uuid_set = true;
3655 case QEMU_OPTION_option_rom:
3656 if (nb_option_roms >= MAX_OPTION_ROMS) {
3657 error_report("too many option ROMs");
3660 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3665 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3666 option_rom[nb_option_roms].bootindex =
3667 qemu_opt_get_number(opts, "bootindex", -1);
3668 if (!option_rom[nb_option_roms].name) {
3669 error_report("Option ROM file is not specified");
3674 case QEMU_OPTION_semihosting:
3675 qemu_semihosting_enable();
3677 case QEMU_OPTION_semihosting_config:
3678 if (qemu_semihosting_config_options(optarg) != 0) {
3682 case QEMU_OPTION_name:
3683 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3689 case QEMU_OPTION_prom_env:
3690 if (nb_prom_envs >= MAX_PROM_ENVS) {
3691 error_report("too many prom variables");
3694 prom_envs[nb_prom_envs] = optarg;
3697 case QEMU_OPTION_old_param:
3700 case QEMU_OPTION_rtc:
3701 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3707 case QEMU_OPTION_tb_size:
3709 error_report("TCG is disabled");
3712 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3713 error_report("Invalid argument to -tb-size");
3717 case QEMU_OPTION_icount:
3718 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3724 case QEMU_OPTION_incoming:
3726 runstate_set(RUN_STATE_INMIGRATE);
3730 case QEMU_OPTION_only_migratable:
3731 only_migratable = 1;
3733 case QEMU_OPTION_nodefaults:
3736 case QEMU_OPTION_xen_domid:
3737 if (!(xen_available())) {
3738 error_report("Option not supported for this target");
3741 xen_domid = atoi(optarg);
3743 case QEMU_OPTION_xen_attach:
3744 if (!(xen_available())) {
3745 error_report("Option not supported for this target");
3748 xen_mode = XEN_ATTACH;
3750 case QEMU_OPTION_xen_domid_restrict:
3751 if (!(xen_available())) {
3752 error_report("Option not supported for this target");
3755 xen_domid_restrict = true;
3757 case QEMU_OPTION_trace:
3759 trace_file = trace_opt_parse(optarg);
3761 case QEMU_OPTION_readconfig:
3763 int ret = qemu_read_config_file(optarg);
3765 error_report("read config %s: %s", optarg,
3771 case QEMU_OPTION_spice:
3772 olist = qemu_find_opts("spice");
3774 error_report("spice support is disabled");
3777 opts = qemu_opts_parse_noisily(olist, optarg, false);
3783 case QEMU_OPTION_writeconfig:
3786 if (strcmp(optarg, "-") == 0) {
3789 fp = fopen(optarg, "w");
3791 error_report("open %s: %s", optarg,
3796 qemu_config_write(fp);
3802 case QEMU_OPTION_qtest:
3803 qtest_chrdev = optarg;
3805 case QEMU_OPTION_qtest_log:
3808 case QEMU_OPTION_sandbox:
3809 olist = qemu_find_opts("sandbox");
3811 #ifndef CONFIG_SECCOMP
3812 error_report("-sandbox support is not enabled "
3813 "in this QEMU binary");
3818 opts = qemu_opts_parse_noisily(olist, optarg, true);
3823 case QEMU_OPTION_add_fd:
3825 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3831 error_report("File descriptor passing is disabled on this "
3836 case QEMU_OPTION_object:
3837 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3843 case QEMU_OPTION_realtime:
3844 warn_report("'-realtime mlock=...' is deprecated, please use "
3845 "'-overcommit mem-lock=...' instead");
3846 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3851 /* Don't override the -overcommit option if set */
3852 enable_mlock = enable_mlock ||
3853 qemu_opt_get_bool(opts, "mlock", true);
3855 case QEMU_OPTION_overcommit:
3856 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3861 /* Don't override the -realtime option if set */
3862 enable_mlock = enable_mlock ||
3863 qemu_opt_get_bool(opts, "mem-lock", false);
3864 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3866 case QEMU_OPTION_msg:
3867 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3872 configure_msg(opts);
3874 case QEMU_OPTION_dump_vmstate:
3875 if (vmstate_dump_file) {
3876 error_report("only one '-dump-vmstate' "
3877 "option may be given");
3880 vmstate_dump_file = fopen(optarg, "w");
3881 if (vmstate_dump_file == NULL) {
3882 error_report("open %s: %s", optarg, strerror(errno));
3886 case QEMU_OPTION_enable_sync_profile:
3889 case QEMU_OPTION_nouserconfig:
3890 /* Nothing to be parsed here. Especially, do not error out below. */
3893 if (os_parse_cmd_args(popt->index, optarg)) {
3894 error_report("Option not supported in this build");
3901 * Clear error location left behind by the loop.
3902 * Best done right after the loop. Do not insert code here!
3906 user_register_global_props();
3908 replay_configure(icount_opts);
3910 if (incoming && !preconfig_exit_requested) {
3911 error_report("'preconfig' and 'incoming' options are "
3912 "mutually exclusive");
3916 configure_rtc(qemu_find_opts_singleton("rtc"));
3918 machine_class = select_machine();
3919 object_set_machine_compat_props(machine_class->compat_props);
3921 set_memory_options(&ram_slots, &maxram_size, machine_class);
3924 rcu_disable_atfork();
3926 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3927 error_reportf_err(err, "cannot create PID file: ");
3931 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3932 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3934 if (qemu_init_main_loop(&main_loop_err)) {
3935 error_report_err(main_loop_err);
3939 #ifdef CONFIG_SECCOMP
3940 olist = qemu_find_opts_err("sandbox", NULL);
3942 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3946 qemu_opts_foreach(qemu_find_opts("name"),
3947 parse_name, NULL, &error_fatal);
3950 qemu_opts_foreach(qemu_find_opts("add-fd"),
3951 parse_add_fd, NULL, &error_fatal);
3953 qemu_opts_foreach(qemu_find_opts("add-fd"),
3954 cleanup_add_fd, NULL, &error_fatal);
3957 current_machine = MACHINE(object_new(object_class_get_name(
3958 OBJECT_CLASS(machine_class))));
3959 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3962 object_property_add_child(object_get_root(), "machine",
3963 OBJECT(current_machine), &error_abort);
3964 object_property_add_child(container_get(OBJECT(current_machine),
3966 "sysbus", OBJECT(sysbus_get_default()),
3969 if (machine_class->minimum_page_bits) {
3970 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3971 /* This would be a board error: specifying a minimum smaller than
3972 * a target's compile-time fixed setting.
3974 g_assert_not_reached();
3978 cpu_exec_init_all();
3980 if (machine_class->hw_version) {
3981 qemu_set_hw_version(machine_class->hw_version);
3984 if (cpu_option && is_help_option(cpu_option)) {
3985 list_cpus(cpu_option);
3989 if (!trace_init_backends()) {
3992 trace_init_file(trace_file);
3994 /* Open the logfile at this point and set the log mask if necessary.
3997 qemu_set_log_filename(log_file, &error_fatal);
4002 mask = qemu_str_to_log_mask(log_mask);
4004 qemu_print_log_usage(stdout);
4012 /* add configured firmware directories */
4013 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4014 for (i = 0; dirs[i] != NULL; i++) {
4015 qemu_add_data_dir(dirs[i]);
4019 /* try to find datadir relative to the executable path */
4020 dir = os_find_datadir();
4021 qemu_add_data_dir(dir);
4024 /* add the datadir specified when building */
4025 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4027 /* -L help lists the data directories and exits. */
4028 if (list_data_dirs) {
4029 for (i = 0; i < data_dir_idx; i++) {
4030 printf("%s\n", data_dir[i]);
4035 /* machine_class: default to UP */
4036 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4037 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4038 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4040 /* default to machine_class->default_cpus */
4041 smp_cpus = machine_class->default_cpus;
4042 max_cpus = machine_class->default_cpus;
4044 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4046 /* sanity-check smp_cpus and max_cpus against machine_class */
4047 if (smp_cpus < machine_class->min_cpus) {
4048 error_report("Invalid SMP CPUs %d. The min CPUs "
4049 "supported by machine '%s' is %d", smp_cpus,
4050 machine_class->name, machine_class->min_cpus);
4053 if (max_cpus > machine_class->max_cpus) {
4054 error_report("Invalid SMP CPUs %d. The max CPUs "
4055 "supported by machine '%s' is %d", max_cpus,
4056 machine_class->name, machine_class->max_cpus);
4061 * Get the default machine options from the machine if it is not already
4062 * specified either by the configuration file or by the command line.
4064 if (machine_class->default_machine_opts) {
4065 qemu_opts_set_defaults(qemu_find_opts("machine"),
4066 machine_class->default_machine_opts, 0);
4069 qemu_opts_foreach(qemu_find_opts("device"),
4070 default_driver_check, NULL, NULL);
4071 qemu_opts_foreach(qemu_find_opts("global"),
4072 default_driver_check, NULL, NULL);
4074 if (!vga_model && !default_vga) {
4075 vga_interface_type = VGA_DEVICE;
4077 if (!has_defaults || machine_class->no_serial) {
4080 if (!has_defaults || machine_class->no_parallel) {
4081 default_parallel = 0;
4083 if (!has_defaults || machine_class->no_floppy) {
4086 if (!has_defaults || machine_class->no_cdrom) {
4089 if (!has_defaults || machine_class->no_sdcard) {
4092 if (!has_defaults) {
4093 default_monitor = 0;
4098 if (is_daemonized()) {
4099 if (!preconfig_exit_requested) {
4100 error_report("'preconfig' and 'daemonize' options are "
4101 "mutually exclusive");
4105 /* According to documentation and historically, -nographic redirects
4106 * serial port, parallel port and monitor to stdio, which does not work
4107 * with -daemonize. We can redirect these to null instead, but since
4108 * -nographic is legacy, let's just error out.
4109 * We disallow -nographic only if all other ports are not redirected
4110 * explicitly, to not break existing legacy setups which uses
4111 * -nographic _and_ redirects all ports explicitly - this is valid
4112 * usage, -nographic is just a no-op in this case.
4115 && (default_parallel || default_serial || default_monitor)) {
4116 error_report("-nographic cannot be used with -daemonize");
4119 #ifdef CONFIG_CURSES
4120 if (dpy.type == DISPLAY_TYPE_CURSES) {
4121 error_report("curses display cannot be used with -daemonize");
4128 if (default_parallel)
4129 add_device_config(DEV_PARALLEL, "null");
4130 if (default_serial && default_monitor) {
4131 add_device_config(DEV_SERIAL, "mon:stdio");
4134 add_device_config(DEV_SERIAL, "stdio");
4135 if (default_monitor)
4136 monitor_parse("stdio", "readline", false);
4140 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4141 if (default_parallel)
4142 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4143 if (default_monitor)
4144 monitor_parse("vc:80Cx24C", "readline", false);
4147 #if defined(CONFIG_VNC)
4148 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4152 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4153 if (!qemu_display_find_default(&dpy)) {
4154 dpy.type = DISPLAY_TYPE_NONE;
4155 #if defined(CONFIG_VNC)
4156 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4160 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4161 dpy.type = DISPLAY_TYPE_NONE;
4164 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4165 error_report("-alt-grab and -ctrl-grab are only valid "
4166 "for SDL, ignoring option");
4168 if (dpy.has_window_close &&
4169 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4170 error_report("-no-quit is only valid for GTK and SDL, "
4174 qemu_display_early_init(&dpy);
4175 qemu_console_early_init();
4177 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4178 #if defined(CONFIG_OPENGL)
4179 error_report("OpenGL is not supported by the display");
4181 error_report("OpenGL support is disabled");
4189 qemu_opts_foreach(qemu_find_opts("object"),
4190 user_creatable_add_opts_foreach,
4191 object_create_initial, &error_fatal);
4193 qemu_opts_foreach(qemu_find_opts("chardev"),
4194 chardev_init_func, NULL, &error_fatal);
4195 /* now chardevs have been created we may have semihosting to connect */
4196 qemu_semihosting_connect_chardevs();
4198 #ifdef CONFIG_VIRTFS
4199 qemu_opts_foreach(qemu_find_opts("fsdev"),
4200 fsdev_init_func, NULL, &error_fatal);
4203 if (qemu_opts_foreach(qemu_find_opts("device"),
4204 device_help_func, NULL, NULL)) {
4209 * Note: we need to create block backends before
4210 * machine_set_property(), so machine properties can refer to
4213 configure_blockdev(&bdo_queue, machine_class, snapshot);
4215 machine_opts = qemu_get_machine_opts();
4216 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4218 current_machine->ram_size = ram_size;
4219 current_machine->maxram_size = maxram_size;
4220 current_machine->ram_slots = ram_slots;
4223 * Note: uses machine properties such as kernel-irqchip, must run
4224 * after machine_set_property().
4226 configure_accelerator(current_machine, argv[0]);
4229 * Beware, QOM objects created before this point miss global and
4230 * compat properties.
4232 * Global properties get set up by qdev_prop_register_global(),
4233 * called from user_register_global_props(), and certain option
4234 * desugaring. Also in CPU feature desugaring (buried in
4235 * parse_cpu_option()), which happens below this point, but may
4236 * only target the CPU type, which can only be created after
4237 * parse_cpu_option() returned the type.
4239 * Machine compat properties: object_set_machine_compat_props().
4240 * Accelerator compat props: object_set_accelerator_compat_props(),
4241 * called from configure_accelerator().
4244 if (!qtest_enabled() && machine_class->deprecation_reason) {
4245 error_report("Machine type '%s' is deprecated: %s",
4246 machine_class->name, machine_class->deprecation_reason);
4250 * Note: creates a QOM object, must run only after global and
4251 * compat properties have been set up.
4253 migration_object_init();
4256 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4259 machine_opts = qemu_get_machine_opts();
4260 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4261 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4262 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4263 bios_name = qemu_opt_get(machine_opts, "firmware");
4265 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4267 boot_order = qemu_opt_get(opts, "order");
4269 validate_bootdevices(boot_order, &error_fatal);
4272 boot_once = qemu_opt_get(opts, "once");
4274 validate_bootdevices(boot_once, &error_fatal);
4277 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4278 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4282 boot_order = machine_class->default_boot_order;
4285 if (!kernel_cmdline) {
4286 kernel_cmdline = "";
4287 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4290 linux_boot = (kernel_filename != NULL);
4292 if (!linux_boot && *kernel_cmdline != '\0') {
4293 error_report("-append only allowed with -kernel option");
4297 if (!linux_boot && initrd_filename != NULL) {
4298 error_report("-initrd only allowed with -kernel option");
4302 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4303 /* fall back to the -kernel/-append */
4304 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4307 os_set_line_buffering();
4309 /* spice needs the timers to be initialized by this point */
4314 if (!tcg_enabled()) {
4315 error_report("-icount is not allowed with hardware virtualization");
4318 configure_icount(icount_opts, &error_abort);
4319 qemu_opts_del(icount_opts);
4322 if (tcg_enabled()) {
4323 qemu_tcg_configure(accel_opts, &error_fatal);
4327 QemuOptsList *net = qemu_find_opts("net");
4328 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4330 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4334 if (net_init_clients(&err) < 0) {
4335 error_report_err(err);
4339 qemu_opts_foreach(qemu_find_opts("object"),
4340 user_creatable_add_opts_foreach,
4341 object_create_delayed, &error_fatal);
4345 /* init the bluetooth world */
4346 if (foreach_device_config(DEV_BT, bt_parse))
4349 if (!xen_enabled()) {
4350 /* On 32-bit hosts, QEMU is limited by virtual address space */
4351 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4352 error_report("at most 2047 MB RAM can be simulated");
4359 dirty_bitmap_mig_init();
4361 qemu_opts_foreach(qemu_find_opts("mon"),
4362 mon_init_func, NULL, &error_fatal);
4364 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4366 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4368 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4371 /* If no default VGA is requested, the default is "none". */
4373 vga_model = get_default_vga_model(machine_class);
4376 select_vgahw(machine_class, vga_model);
4380 i = select_watchdog(watchdog);
4382 exit (i == 1 ? 1 : 0);
4385 /* This checkpoint is required by replay to separate prior clock
4386 reading from the other reads, because timer polling functions query
4387 clock values from the log. */
4388 replay_checkpoint(CHECKPOINT_INIT);
4389 qdev_machine_init();
4391 current_machine->boot_order = boot_order;
4393 /* parse features once if machine provides default cpu_type */
4394 current_machine->cpu_type = machine_class->default_cpu_type;
4396 current_machine->cpu_type = parse_cpu_option(cpu_option);
4398 parse_numa_opts(current_machine);
4400 /* do monitor/qmp handling at preconfig state if requested */
4403 audio_init_audiodevs();
4405 /* from here on runstate is RUN_STATE_PRELAUNCH */
4406 machine_run_board_init(current_machine);
4412 if (hax_enabled()) {
4416 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4417 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4419 /* init USB devices */
4420 if (machine_usb(current_machine)) {
4421 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4425 /* Check if IGD GFX passthrough. */
4428 /* init generic devices */
4429 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4430 qemu_opts_foreach(qemu_find_opts("device"),
4431 device_init_func, NULL, &error_fatal);
4433 cpu_synchronize_all_post_init();
4435 rom_reset_order_override();
4437 /* Did we create any drives that we failed to create a device for? */
4438 drive_check_orphaned();
4440 /* Don't warn about the default network setup that you get if
4441 * no command line -net or -netdev options are specified. There
4442 * are two cases that we would otherwise complain about:
4443 * (1) board doesn't support a NIC but the implicit "-net nic"
4445 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4446 * sets up a nic that isn't connected to anything.
4448 if (!default_net && (!qtest_enabled() || has_defaults)) {
4449 net_check_clients();
4453 qemu_boot_set(boot_once, &error_fatal);
4454 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4457 /* init local displays */
4458 ds = init_displaystate();
4459 qemu_display_init(ds, &dpy);
4461 /* must be after terminal init, SDL library changes signal handlers */
4462 os_setup_signal_handling();
4464 /* init remote displays */
4466 qemu_opts_foreach(qemu_find_opts("vnc"),
4467 vnc_init_func, NULL, &error_fatal);
4471 qemu_spice_display_init();
4474 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4478 qdev_machine_creation_done();
4480 /* TODO: once all bus devices are qdevified, this should be done
4481 * when bus is created by qdev.c */
4482 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4483 qemu_run_machine_init_done_notifiers();
4485 if (rom_check_and_register_reset() != 0) {
4486 error_report("rom check and register reset failed");
4492 /* This checkpoint is required by replay to separate prior clock
4493 reading from the other reads, because timer polling functions query
4494 clock values from the log. */
4495 replay_checkpoint(CHECKPOINT_RESET);
4496 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4497 register_global_state();
4499 Error *local_err = NULL;
4500 if (load_snapshot(loadvm, &local_err) < 0) {
4501 error_report_err(local_err);
4506 if (replay_mode != REPLAY_MODE_NONE) {
4507 replay_vmstate_init();
4510 qdev_prop_check_globals();
4511 if (vmstate_dump_file) {
4513 dump_vmstate_json_to_file(vmstate_dump_file);
4518 Error *local_err = NULL;
4519 qemu_start_incoming_migration(incoming, &local_err);
4521 error_reportf_err(local_err, "-incoming %s: ", incoming);
4524 } else if (autostart) {
4528 accel_setup_post(current_machine);
4533 gdbserver_cleanup();
4536 * cleaning up the migration object cancels any existing migration
4537 * try to do this early so that it also stops using devices.
4539 migration_shutdown();
4541 /* No more vcpu or device emulation activity beyond this point */
4544 job_cancel_sync_all();
4549 /* vhost-user must be cleaned up before chardevs. */
4555 user_creatable_cleanup();
4556 /* TODO: unref root container, check all devices are ok */