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/smbios/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"
110 #include "slirp/libslirp.h"
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qmp/qerror.h"
132 #include "sysemu/iothread.h"
134 #define MAX_VIRTIO_CONSOLES 1
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 const char* keyboard_layout = NULL;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
148 NICInfo nd_table[MAX_NICS];
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
154 static DisplayOptions dpy;
156 static int num_serial_hds;
157 static Chardev **serial_hds;
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 int win2k_install_hack = 0;
163 unsigned int max_cpus;
166 int acpi_enabled = 1;
169 static int no_reboot;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
177 const char *qemu_name;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
188 int icount_align_option;
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial", .flag = &default_virtcon },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
242 static QemuOptsList qemu_rtc_opts = {
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .type = QEMU_OPT_STRING,
251 .type = QEMU_OPT_STRING,
254 .type = QEMU_OPT_STRING,
256 { /* end of list */ }
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
267 .type = QEMU_OPT_NUMBER,
270 .type = QEMU_OPT_STRING,
272 { /* end of list */ }
276 static QemuOptsList qemu_machine_opts = {
278 .implied_opt_name = "type",
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
291 static QemuOptsList qemu_accel_opts = {
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
299 .type = QEMU_OPT_STRING,
300 .help = "Select the type of accelerator",
304 .type = QEMU_OPT_STRING,
305 .help = "Enable/disable multi-threaded TCG",
307 { /* end of list */ }
311 static QemuOptsList qemu_boot_opts = {
313 .implied_opt_name = "order",
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
319 .type = QEMU_OPT_STRING,
322 .type = QEMU_OPT_STRING,
325 .type = QEMU_OPT_BOOL,
328 .type = QEMU_OPT_STRING,
330 .name = "splash-time",
331 .type = QEMU_OPT_STRING,
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_STRING,
337 .type = QEMU_OPT_BOOL,
343 static QemuOptsList qemu_add_fd_opts = {
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
349 .type = QEMU_OPT_NUMBER,
350 .help = "file descriptor of which a duplicate is added to fd set",
353 .type = QEMU_OPT_NUMBER,
354 .help = "ID of the fd set to add fd to",
357 .type = QEMU_OPT_STRING,
358 .help = "free-form string used to describe fd",
360 { /* end of list */ }
364 static QemuOptsList qemu_object_opts = {
366 .implied_opt_name = "qom-type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
373 static QemuOptsList qemu_tpmdev_opts = {
375 .implied_opt_name = "type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
383 static QemuOptsList qemu_realtime_opts = {
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
389 .type = QEMU_OPT_BOOL,
391 { /* end of list */ }
395 static QemuOptsList qemu_overcommit_opts = {
396 .name = "overcommit",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
401 .type = QEMU_OPT_BOOL,
405 .type = QEMU_OPT_BOOL,
407 { /* end of list */ }
411 static QemuOptsList qemu_msg_opts = {
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
417 .type = QEMU_OPT_BOOL,
419 { /* end of list */ }
423 static QemuOptsList qemu_name_opts = {
425 .implied_opt_name = "guest",
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
437 .type = QEMU_OPT_STRING,
438 .help = "Sets the name of the QEMU process, as shown in top etc",
440 .name = "debug-threads",
441 .type = QEMU_OPT_BOOL,
442 .help = "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
446 { /* End of list */ }
450 static QemuOptsList qemu_mem_opts = {
452 .implied_opt_name = "size",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
458 .type = QEMU_OPT_SIZE,
462 .type = QEMU_OPT_NUMBER,
466 .type = QEMU_OPT_SIZE,
468 { /* end of list */ }
472 static QemuOptsList qemu_icount_opts = {
474 .implied_opt_name = "shift",
476 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
480 .type = QEMU_OPT_STRING,
483 .type = QEMU_OPT_BOOL,
486 .type = QEMU_OPT_BOOL,
489 .type = QEMU_OPT_STRING,
492 .type = QEMU_OPT_STRING,
494 .name = "rrsnapshot",
495 .type = QEMU_OPT_STRING,
497 { /* end of list */ }
501 static QemuOptsList qemu_semihosting_config_opts = {
502 .name = "semihosting-config",
503 .implied_opt_name = "enable",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
508 .type = QEMU_OPT_BOOL,
511 .type = QEMU_OPT_STRING,
514 .type = QEMU_OPT_STRING,
516 { /* end of list */ }
520 static QemuOptsList qemu_fw_cfg_opts = {
522 .implied_opt_name = "name",
523 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
527 .type = QEMU_OPT_STRING,
528 .help = "Sets the fw_cfg name of the blob to be inserted",
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the name of the file from which\n"
533 "the fw_cfg blob will be loaded",
536 .type = QEMU_OPT_STRING,
537 .help = "Sets content of the blob to be inserted from a string",
539 { /* end of list */ }
544 * Get machine options
546 * Returns: machine options (never null).
548 QemuOpts *qemu_get_machine_opts(void)
550 return qemu_find_opts_singleton("machine");
553 const char *qemu_get_vm_name(void)
558 static void res_free(void)
560 g_free(boot_splash_filedata);
561 boot_splash_filedata = NULL;
564 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
566 const char *driver = qemu_opt_get(opts, "driver");
571 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
572 if (strcmp(default_list[i].driver, driver) != 0)
574 *(default_list[i].flag) = 0;
579 /***********************************************************/
582 static RunState current_run_state = RUN_STATE_PRECONFIG;
584 /* We use RUN_STATE__MAX but any invalid value will do */
585 static RunState vmstop_requested = RUN_STATE__MAX;
586 static QemuMutex vmstop_lock;
591 } RunStateTransition;
593 static const RunStateTransition runstate_transitions_def[] = {
595 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
596 /* Early switch to inmigrate state to allow -incoming CLI option work
597 * as it used to. TODO: delay actual switching to inmigrate state to
598 * the point after machine is built and remove this hack.
600 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
602 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
603 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
606 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
607 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
608 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
611 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
612 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
613 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
623 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
624 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
628 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
630 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_PAUSED, RUN_STATE_COLO},
633 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
634 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
637 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
638 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
641 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
647 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_COLO, RUN_STATE_RUNNING },
652 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
653 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
654 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
655 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
656 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
658 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
659 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
660 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
661 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
662 { RUN_STATE_RUNNING, RUN_STATE_COLO},
664 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
666 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
667 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
670 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
671 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
672 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
673 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
674 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
675 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
677 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
678 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
682 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
683 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
686 { RUN_STATE__MAX, RUN_STATE__MAX },
689 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
691 bool runstate_check(RunState state)
693 return current_run_state == state;
696 bool runstate_store(char *str, size_t size)
698 const char *state = RunState_str(current_run_state);
699 size_t len = strlen(state) + 1;
704 memcpy(str, state, len);
708 static void runstate_init(void)
710 const RunStateTransition *p;
712 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
713 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
714 runstate_valid_transitions[p->from][p->to] = true;
717 qemu_mutex_init(&vmstop_lock);
720 /* This function will abort() on invalid state transitions */
721 void runstate_set(RunState new_state)
723 assert(new_state < RUN_STATE__MAX);
725 if (current_run_state == new_state) {
729 if (!runstate_valid_transitions[current_run_state][new_state]) {
730 error_report("invalid runstate transition: '%s' -> '%s'",
731 RunState_str(current_run_state),
732 RunState_str(new_state));
735 trace_runstate_set(new_state);
736 current_run_state = new_state;
739 int runstate_is_running(void)
741 return runstate_check(RUN_STATE_RUNNING);
744 bool runstate_needs_reset(void)
746 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
747 runstate_check(RUN_STATE_SHUTDOWN);
750 StatusInfo *qmp_query_status(Error **errp)
752 StatusInfo *info = g_malloc0(sizeof(*info));
754 info->running = runstate_is_running();
755 info->singlestep = singlestep;
756 info->status = current_run_state;
761 bool qemu_vmstop_requested(RunState *r)
763 qemu_mutex_lock(&vmstop_lock);
764 *r = vmstop_requested;
765 vmstop_requested = RUN_STATE__MAX;
766 qemu_mutex_unlock(&vmstop_lock);
767 return *r < RUN_STATE__MAX;
770 void qemu_system_vmstop_request_prepare(void)
772 qemu_mutex_lock(&vmstop_lock);
775 void qemu_system_vmstop_request(RunState state)
777 vmstop_requested = state;
778 qemu_mutex_unlock(&vmstop_lock);
782 /***********************************************************/
783 /* real time host monotonic timer */
785 static time_t qemu_time(void)
787 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
790 /***********************************************************/
791 /* host time/date access */
792 void qemu_get_timedate(struct tm *tm, int offset)
794 time_t ti = qemu_time();
797 if (rtc_date_offset == -1) {
801 localtime_r(&ti, tm);
803 ti -= rtc_date_offset;
808 int qemu_timedate_diff(struct tm *tm)
812 if (rtc_date_offset == -1)
814 seconds = mktimegm(tm);
817 tmp.tm_isdst = -1; /* use timezone to figure it out */
818 seconds = mktime(&tmp);
821 seconds = mktimegm(tm) + rtc_date_offset;
823 return seconds - qemu_time();
826 static void configure_rtc_date_offset(const char *startdate, int legacy)
828 time_t rtc_start_date;
831 if (!strcmp(startdate, "now") && legacy) {
832 rtc_date_offset = -1;
834 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
842 } else if (sscanf(startdate, "%d-%d-%d",
854 rtc_start_date = mktimegm(&tm);
855 if (rtc_start_date == -1) {
857 error_report("invalid date format");
858 error_printf("valid formats: "
859 "'2006-06-17T16:01:21' or '2006-06-17'\n");
862 rtc_date_offset = qemu_time() - rtc_start_date;
866 static void configure_rtc(QemuOpts *opts)
870 value = qemu_opt_get(opts, "base");
872 if (!strcmp(value, "utc")) {
874 } else if (!strcmp(value, "localtime")) {
875 Error *blocker = NULL;
877 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
878 "-rtc base=localtime");
879 replay_add_blocker(blocker);
881 configure_rtc_date_offset(value, 0);
884 value = qemu_opt_get(opts, "clock");
886 if (!strcmp(value, "host")) {
887 rtc_clock = QEMU_CLOCK_HOST;
888 } else if (!strcmp(value, "rt")) {
889 rtc_clock = QEMU_CLOCK_REALTIME;
890 } else if (!strcmp(value, "vm")) {
891 rtc_clock = QEMU_CLOCK_VIRTUAL;
893 error_report("invalid option value '%s'", value);
897 value = qemu_opt_get(opts, "driftfix");
899 if (!strcmp(value, "slew")) {
900 static GlobalProperty slew_lost_ticks = {
901 .driver = "mc146818rtc",
902 .property = "lost_tick_policy",
906 qdev_prop_register_global(&slew_lost_ticks);
907 } else if (!strcmp(value, "none")) {
908 /* discard is default */
910 error_report("invalid option value '%s'", value);
916 /***********************************************************/
917 /* Bluetooth support */
920 static struct HCIInfo *hci_table[MAX_NICS];
922 struct HCIInfo *qemu_next_hci(void)
924 if (cur_hci == nb_hcis)
927 return hci_table[cur_hci++];
930 static int bt_hci_parse(const char *str)
935 if (nb_hcis >= MAX_NICS) {
936 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
949 bdaddr.b[5] = 0x56 + nb_hcis;
950 hci->bdaddr_set(hci, bdaddr.b);
952 hci_table[nb_hcis++] = hci;
957 static void bt_vhci_add(int vlan_id)
959 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
962 warn_report("adding a VHCI to an empty scatternet %i",
965 bt_vhci_init(bt_new_hci(vlan));
968 static struct bt_device_s *bt_device_add(const char *opt)
970 struct bt_scatternet_s *vlan;
972 char *endp = strstr(opt, ",vlan=");
973 int len = (endp ? endp - opt : strlen(opt)) + 1;
976 pstrcpy(devname, MIN(sizeof(devname), len), opt);
979 vlan_id = strtol(endp + 6, &endp, 0);
981 error_report("unrecognised bluetooth vlan Id");
986 vlan = qemu_find_bt_vlan(vlan_id);
989 warn_report("adding a slave device to an empty scatternet %i",
992 if (!strcmp(devname, "keyboard"))
993 return bt_keyboard_init(vlan);
995 error_report("unsupported bluetooth device '%s'", devname);
999 static int bt_parse(const char *opt)
1001 const char *endp, *p;
1004 if (strstart(opt, "hci", &endp)) {
1005 if (!*endp || *endp == ',') {
1007 if (!strstart(endp, ",vlan=", 0))
1010 return bt_hci_parse(opt);
1012 } else if (strstart(opt, "vhci", &endp)) {
1013 if (!*endp || *endp == ',') {
1015 if (strstart(endp, ",vlan=", &p)) {
1016 vlan = strtol(p, (char **) &endp, 0);
1018 error_report("bad scatternet '%s'", p);
1022 error_report("bad parameter '%s'", endp + 1);
1031 } else if (strstart(opt, "device:", &endp))
1032 return !bt_device_add(endp);
1034 error_report("bad bluetooth parameter '%s'", opt);
1038 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1040 const char *proc_name;
1042 if (qemu_opt_get(opts, "debug-threads")) {
1043 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1045 qemu_name = qemu_opt_get(opts, "guest");
1047 proc_name = qemu_opt_get(opts, "process");
1049 os_set_proc_name(proc_name);
1055 bool defaults_enabled(void)
1057 return has_defaults;
1061 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1063 int fd, dupfd, flags;
1065 const char *fd_opaque = NULL;
1068 fd = qemu_opt_get_number(opts, "fd", -1);
1069 fdset_id = qemu_opt_get_number(opts, "set", -1);
1070 fd_opaque = qemu_opt_get(opts, "opaque");
1073 error_report("fd option is required and must be non-negative");
1077 if (fd <= STDERR_FILENO) {
1078 error_report("fd cannot be a standard I/O stream");
1083 * All fds inherited across exec() necessarily have FD_CLOEXEC
1084 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1086 flags = fcntl(fd, F_GETFD);
1087 if (flags == -1 || (flags & FD_CLOEXEC)) {
1088 error_report("fd is not valid or already in use");
1093 error_report("set option is required and must be non-negative");
1097 #ifdef F_DUPFD_CLOEXEC
1098 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1102 qemu_set_cloexec(dupfd);
1106 error_report("error duplicating fd: %s", strerror(errno));
1110 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1111 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1118 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1122 fd = qemu_opt_get_number(opts, "fd", -1);
1129 /***********************************************************/
1130 /* QEMU Block devices */
1132 #define HD_OPTS "media=disk"
1133 #define CDROM_OPTS "media=cdrom"
1135 #define PFLASH_OPTS ""
1139 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1141 BlockInterfaceType *block_default_type = opaque;
1143 return drive_new(opts, *block_default_type) == NULL;
1146 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1148 if (qemu_opt_get(opts, "snapshot") == NULL) {
1149 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1154 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1155 int index, const char *optstr)
1160 if (!enable || drive_get_by_index(type, index)) {
1164 opts = drive_add(type, index, NULL, optstr);
1166 drive_enable_snapshot(NULL, opts, NULL);
1169 dinfo = drive_new(opts, type);
1173 dinfo->is_default = true;
1177 static QemuOptsList qemu_smp_opts = {
1179 .implied_opt_name = "cpus",
1180 .merge_lists = true,
1181 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1185 .type = QEMU_OPT_NUMBER,
1188 .type = QEMU_OPT_NUMBER,
1191 .type = QEMU_OPT_NUMBER,
1194 .type = QEMU_OPT_NUMBER,
1197 .type = QEMU_OPT_NUMBER,
1199 { /*End of list */ }
1203 static void smp_parse(QemuOpts *opts)
1206 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1207 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1208 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1209 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1211 /* compute missing values, prefer sockets over cores over threads */
1212 if (cpus == 0 || sockets == 0) {
1213 sockets = sockets > 0 ? sockets : 1;
1214 cores = cores > 0 ? cores : 1;
1215 threads = threads > 0 ? threads : 1;
1217 cpus = cores * threads * sockets;
1219 } else if (cores == 0) {
1220 threads = threads > 0 ? threads : 1;
1221 cores = cpus / (sockets * threads);
1222 cores = cores > 0 ? cores : 1;
1223 } else if (threads == 0) {
1224 threads = cpus / (cores * sockets);
1225 threads = threads > 0 ? threads : 1;
1226 } else if (sockets * cores * threads < cpus) {
1227 error_report("cpu topology: "
1228 "sockets (%u) * cores (%u) * threads (%u) < "
1230 sockets, cores, threads, cpus);
1234 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1236 if (max_cpus < cpus) {
1237 error_report("maxcpus must be equal to or greater than smp");
1241 if (sockets * cores * threads > max_cpus) {
1242 error_report("cpu topology: "
1243 "sockets (%u) * cores (%u) * threads (%u) > "
1245 sockets, cores, threads, max_cpus);
1251 smp_threads = threads;
1255 Error *blocker = NULL;
1256 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1257 replay_add_blocker(blocker);
1261 static void realtime_init(void)
1264 if (os_mlock() < 0) {
1265 error_report("locking memory failed");
1272 static void configure_msg(QemuOpts *opts)
1274 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1277 /***********************************************************/
1280 typedef struct SemihostingConfig {
1282 SemihostingTarget target;
1285 const char *cmdline; /* concatenated argv */
1286 } SemihostingConfig;
1288 static SemihostingConfig semihosting;
1290 bool semihosting_enabled(void)
1292 return semihosting.enabled;
1295 SemihostingTarget semihosting_get_target(void)
1297 return semihosting.target;
1300 const char *semihosting_get_arg(int i)
1302 if (i >= semihosting.argc) {
1305 return semihosting.argv[i];
1308 int semihosting_get_argc(void)
1310 return semihosting.argc;
1313 const char *semihosting_get_cmdline(void)
1315 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1316 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1318 return semihosting.cmdline;
1321 static int add_semihosting_arg(void *opaque,
1322 const char *name, const char *val,
1325 SemihostingConfig *s = opaque;
1326 if (strcmp(name, "arg") == 0) {
1328 /* one extra element as g_strjoinv() expects NULL-terminated array */
1329 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1330 s->argv[s->argc - 1] = val;
1331 s->argv[s->argc] = NULL;
1336 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1337 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1342 add_semihosting_arg(&semihosting, "arg", file, NULL);
1344 /* split -append and initialize argv[1..n] */
1345 cmd_token = strtok(g_strdup(cmd), " ");
1347 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1348 cmd_token = strtok(NULL, " ");
1352 /* Now we still need this for compatibility with XEN. */
1353 bool has_igd_gfx_passthru;
1354 static void igd_gfx_passthru(void)
1356 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1359 /***********************************************************/
1362 static int usb_device_add(const char *devname)
1364 USBDevice *dev = NULL;
1366 if (!machine_usb(current_machine)) {
1370 dev = usbdevice_create(devname);
1377 static int usb_parse(const char *cmdline)
1380 r = usb_device_add(cmdline);
1382 error_report("could not add USB device '%s'", cmdline);
1387 /***********************************************************/
1388 /* machine registration */
1390 MachineState *current_machine;
1392 static MachineClass *find_machine(const char *name)
1394 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1395 MachineClass *mc = NULL;
1397 for (el = machines; el; el = el->next) {
1398 MachineClass *temp = el->data;
1400 if (!strcmp(temp->name, name)) {
1405 !strcmp(temp->alias, name)) {
1411 g_slist_free(machines);
1415 MachineClass *find_default_machine(void)
1417 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1418 MachineClass *mc = NULL;
1420 for (el = machines; el; el = el->next) {
1421 MachineClass *temp = el->data;
1423 if (temp->is_default) {
1429 g_slist_free(machines);
1433 MachineInfoList *qmp_query_machines(Error **errp)
1435 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1436 MachineInfoList *mach_list = NULL;
1438 for (el = machines; el; el = el->next) {
1439 MachineClass *mc = el->data;
1440 MachineInfoList *entry;
1443 info = g_malloc0(sizeof(*info));
1444 if (mc->is_default) {
1445 info->has_is_default = true;
1446 info->is_default = true;
1450 info->has_alias = true;
1451 info->alias = g_strdup(mc->alias);
1454 info->name = g_strdup(mc->name);
1455 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1456 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1458 entry = g_malloc0(sizeof(*entry));
1459 entry->value = info;
1460 entry->next = mach_list;
1464 g_slist_free(machines);
1468 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1470 ObjectProperty *prop;
1471 ObjectPropertyIterator iter;
1473 if (!qemu_opt_has_help_opt(opts)) {
1477 object_property_iter_init(&iter, OBJECT(machine));
1478 while ((prop = object_property_iter_next(&iter))) {
1483 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1484 prop->name, prop->type);
1485 if (prop->description) {
1486 error_printf(" (%s)\n", prop->description);
1495 /***********************************************************/
1496 /* main execution loop */
1498 struct vm_change_state_entry {
1499 VMChangeStateHandler *cb;
1501 QLIST_ENTRY (vm_change_state_entry) entries;
1504 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1506 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1509 VMChangeStateEntry *e;
1511 e = g_malloc0(sizeof (*e));
1515 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1519 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1521 QLIST_REMOVE (e, entries);
1525 void vm_state_notify(int running, RunState state)
1527 VMChangeStateEntry *e, *next;
1529 trace_vm_state_notify(running, state);
1531 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1532 e->cb(e->opaque, running, state);
1536 static ShutdownCause reset_requested;
1537 static ShutdownCause shutdown_requested;
1538 static int shutdown_signal;
1539 static pid_t shutdown_pid;
1540 static int powerdown_requested;
1541 static int debug_requested;
1542 static int suspend_requested;
1543 static bool preconfig_exit_requested = true;
1544 static WakeupReason wakeup_reason;
1545 static NotifierList powerdown_notifiers =
1546 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1547 static NotifierList suspend_notifiers =
1548 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1549 static NotifierList wakeup_notifiers =
1550 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1551 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1553 ShutdownCause qemu_shutdown_requested_get(void)
1555 return shutdown_requested;
1558 ShutdownCause qemu_reset_requested_get(void)
1560 return reset_requested;
1563 static int qemu_shutdown_requested(void)
1565 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1568 static void qemu_kill_report(void)
1570 if (!qtest_driver() && shutdown_signal) {
1571 if (shutdown_pid == 0) {
1572 /* This happens for eg ^C at the terminal, so it's worth
1573 * avoiding printing an odd message in that case.
1575 error_report("terminating on signal %d", shutdown_signal);
1577 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1579 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1580 shutdown_signal, shutdown_pid,
1581 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1582 g_free(shutdown_cmd);
1584 shutdown_signal = 0;
1588 static ShutdownCause qemu_reset_requested(void)
1590 ShutdownCause r = reset_requested;
1592 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1593 reset_requested = SHUTDOWN_CAUSE_NONE;
1596 return SHUTDOWN_CAUSE_NONE;
1599 static int qemu_suspend_requested(void)
1601 int r = suspend_requested;
1602 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1603 suspend_requested = 0;
1609 static WakeupReason qemu_wakeup_requested(void)
1611 return wakeup_reason;
1614 static int qemu_powerdown_requested(void)
1616 int r = powerdown_requested;
1617 powerdown_requested = 0;
1621 static int qemu_debug_requested(void)
1623 int r = debug_requested;
1624 debug_requested = 0;
1628 void qemu_exit_preconfig_request(void)
1630 preconfig_exit_requested = true;
1634 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1636 void qemu_system_reset(ShutdownCause reason)
1640 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1642 cpu_synchronize_all_states();
1644 if (mc && mc->reset) {
1647 qemu_devices_reset();
1649 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1650 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1653 cpu_synchronize_all_post_reset();
1656 void qemu_system_guest_panicked(GuestPanicInformation *info)
1658 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1661 current_cpu->crash_occurred = true;
1663 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1664 !!info, info, &error_abort);
1665 vm_stop(RUN_STATE_GUEST_PANICKED);
1667 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1668 !!info, info, &error_abort);
1669 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1673 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1674 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1675 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1676 info->u.hyper_v.arg1,
1677 info->u.hyper_v.arg2,
1678 info->u.hyper_v.arg3,
1679 info->u.hyper_v.arg4,
1680 info->u.hyper_v.arg5);
1681 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1682 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1683 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1685 S390CrashReason_str(info->u.s390.reason),
1686 info->u.s390.psw_mask,
1687 info->u.s390.psw_addr);
1689 qapi_free_GuestPanicInformation(info);
1693 void qemu_system_reset_request(ShutdownCause reason)
1695 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1696 shutdown_requested = reason;
1698 reset_requested = reason;
1701 qemu_notify_event();
1704 static void qemu_system_suspend(void)
1707 notifier_list_notify(&suspend_notifiers, NULL);
1708 runstate_set(RUN_STATE_SUSPENDED);
1709 qapi_event_send_suspend(&error_abort);
1712 void qemu_system_suspend_request(void)
1714 if (runstate_check(RUN_STATE_SUSPENDED)) {
1717 suspend_requested = 1;
1719 qemu_notify_event();
1722 void qemu_register_suspend_notifier(Notifier *notifier)
1724 notifier_list_add(&suspend_notifiers, notifier);
1727 void qemu_system_wakeup_request(WakeupReason reason)
1729 trace_system_wakeup_request(reason);
1731 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1734 if (!(wakeup_reason_mask & (1 << reason))) {
1737 runstate_set(RUN_STATE_RUNNING);
1738 wakeup_reason = reason;
1739 qemu_notify_event();
1742 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1745 wakeup_reason_mask |= (1 << reason);
1747 wakeup_reason_mask &= ~(1 << reason);
1751 void qemu_register_wakeup_notifier(Notifier *notifier)
1753 notifier_list_add(&wakeup_notifiers, notifier);
1756 void qemu_system_killed(int signal, pid_t pid)
1758 shutdown_signal = signal;
1762 /* Cannot call qemu_system_shutdown_request directly because
1763 * we are in a signal handler.
1765 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1766 qemu_notify_event();
1769 void qemu_system_shutdown_request(ShutdownCause reason)
1771 trace_qemu_system_shutdown_request(reason);
1772 replay_shutdown_request(reason);
1773 shutdown_requested = reason;
1774 qemu_notify_event();
1777 static void qemu_system_powerdown(void)
1779 qapi_event_send_powerdown(&error_abort);
1780 notifier_list_notify(&powerdown_notifiers, NULL);
1783 void qemu_system_powerdown_request(void)
1785 trace_qemu_system_powerdown_request();
1786 powerdown_requested = 1;
1787 qemu_notify_event();
1790 void qemu_register_powerdown_notifier(Notifier *notifier)
1792 notifier_list_add(&powerdown_notifiers, notifier);
1795 void qemu_system_debug_request(void)
1797 debug_requested = 1;
1798 qemu_notify_event();
1801 static bool main_loop_should_exit(void)
1804 ShutdownCause request;
1806 if (preconfig_exit_requested) {
1807 if (runstate_check(RUN_STATE_PRECONFIG)) {
1808 runstate_set(RUN_STATE_PRELAUNCH);
1810 preconfig_exit_requested = false;
1813 if (qemu_debug_requested()) {
1814 vm_stop(RUN_STATE_DEBUG);
1816 if (qemu_suspend_requested()) {
1817 qemu_system_suspend();
1819 request = qemu_shutdown_requested();
1822 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1825 vm_stop(RUN_STATE_SHUTDOWN);
1830 request = qemu_reset_requested();
1833 qemu_system_reset(request);
1835 if (!runstate_check(RUN_STATE_RUNNING) &&
1836 !runstate_check(RUN_STATE_INMIGRATE)) {
1837 runstate_set(RUN_STATE_PRELAUNCH);
1840 if (qemu_wakeup_requested()) {
1842 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1843 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1844 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1846 qapi_event_send_wakeup(&error_abort);
1848 if (qemu_powerdown_requested()) {
1849 qemu_system_powerdown();
1851 if (qemu_vmstop_requested(&r)) {
1857 static void main_loop(void)
1859 #ifdef CONFIG_PROFILER
1862 while (!main_loop_should_exit()) {
1863 #ifdef CONFIG_PROFILER
1864 ti = profile_getclock();
1866 main_loop_wait(false);
1867 #ifdef CONFIG_PROFILER
1868 dev_time += profile_getclock() - ti;
1873 static void version(void)
1875 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1876 QEMU_COPYRIGHT "\n");
1879 static void help(int exitcode)
1882 printf("usage: %s [options] [disk_image]\n\n"
1883 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1884 error_get_progname());
1886 #define QEMU_OPTIONS_GENERATE_HELP
1887 #include "qemu-options-wrapper.h"
1889 printf("\nDuring emulation, the following keys are useful:\n"
1890 "ctrl-alt-f toggle full screen\n"
1891 "ctrl-alt-n switch to virtual console 'n'\n"
1892 "ctrl-alt toggle mouse and keyboard grab\n"
1894 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1896 QEMU_HELP_BOTTOM "\n");
1901 #define HAS_ARG 0x0001
1903 typedef struct QEMUOption {
1910 static const QEMUOption qemu_options[] = {
1911 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1912 #define QEMU_OPTIONS_GENERATE_OPTIONS
1913 #include "qemu-options-wrapper.h"
1917 typedef struct VGAInterfaceInfo {
1918 const char *opt_name; /* option name */
1919 const char *name; /* human-readable name */
1920 /* Class names indicating that support is available.
1921 * If no class is specified, the interface is always available */
1922 const char *class_names[2];
1925 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1931 .name = "standard VGA",
1932 .class_names = { "VGA", "isa-vga" },
1935 .opt_name = "cirrus",
1936 .name = "Cirrus VGA",
1937 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1940 .opt_name = "vmware",
1941 .name = "VMWare SVGA",
1942 .class_names = { "vmware-svga" },
1945 .opt_name = "virtio",
1946 .name = "Virtio VGA",
1947 .class_names = { "virtio-vga" },
1952 .class_names = { "qxl-vga" },
1956 .name = "TCX framebuffer",
1957 .class_names = { "SUNW,tcx" },
1961 .name = "CG3 framebuffer",
1962 .class_names = { "cgthree" },
1965 .opt_name = "xenfb",
1969 static bool vga_interface_available(VGAInterfaceType t)
1971 VGAInterfaceInfo *ti = &vga_interfaces[t];
1973 assert(t < VGA_TYPE_MAX);
1974 return !ti->class_names[0] ||
1975 object_class_by_name(ti->class_names[0]) ||
1976 object_class_by_name(ti->class_names[1]);
1979 static void select_vgahw(const char *p)
1984 assert(vga_interface_type == VGA_NONE);
1985 for (t = 0; t < VGA_TYPE_MAX; t++) {
1986 VGAInterfaceInfo *ti = &vga_interfaces[t];
1987 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1988 if (!vga_interface_available(t)) {
1989 error_report("%s not available", ti->name);
1992 vga_interface_type = t;
1996 if (t == VGA_TYPE_MAX) {
1998 error_report("unknown vga type: %s", p);
2002 const char *nextopt;
2004 if (strstart(opts, ",retrace=", &nextopt)) {
2006 if (strstart(opts, "dumb", &nextopt))
2007 vga_retrace_method = VGA_RETRACE_DUMB;
2008 else if (strstart(opts, "precise", &nextopt))
2009 vga_retrace_method = VGA_RETRACE_PRECISE;
2010 else goto invalid_vga;
2011 } else goto invalid_vga;
2016 static void parse_display_qapi(const char *optarg)
2019 DisplayOptions *opts;
2022 v = qobject_input_visitor_new_str(optarg, "type", &err);
2024 error_report_err(err);
2028 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2029 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2031 qapi_free_DisplayOptions(opts);
2035 static void parse_display(const char *p)
2039 if (strstart(p, "sdl", &opts)) {
2041 * sdl DisplayType needs hand-crafted parser instead of
2042 * parse_display_qapi() due to some options not in
2043 * DisplayOptions, specifically:
2045 * Already deprecated.
2046 * - ctrl_grab + alt_grab
2047 * Not clear yet what happens to them long-term. Should
2048 * replaced by something better or deprecated and dropped.
2050 dpy.type = DISPLAY_TYPE_SDL;
2052 const char *nextopt;
2054 if (strstart(opts, ",frame=", &nextopt)) {
2055 g_printerr("The frame= sdl option is deprecated, and will be\n"
2056 "removed in a future release.\n");
2058 if (strstart(opts, "on", &nextopt)) {
2060 } else if (strstart(opts, "off", &nextopt)) {
2063 goto invalid_sdl_args;
2065 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2067 if (strstart(opts, "on", &nextopt)) {
2069 } else if (strstart(opts, "off", &nextopt)) {
2072 goto invalid_sdl_args;
2074 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2076 if (strstart(opts, "on", &nextopt)) {
2078 } else if (strstart(opts, "off", &nextopt)) {
2081 goto invalid_sdl_args;
2083 } else if (strstart(opts, ",window_close=", &nextopt)) {
2085 dpy.has_window_close = true;
2086 if (strstart(opts, "on", &nextopt)) {
2087 dpy.window_close = true;
2088 } else if (strstart(opts, "off", &nextopt)) {
2089 dpy.window_close = false;
2091 goto invalid_sdl_args;
2093 } else if (strstart(opts, ",gl=", &nextopt)) {
2096 if (strstart(opts, "on", &nextopt)) {
2097 dpy.gl = DISPLAYGL_MODE_ON;
2098 } else if (strstart(opts, "core", &nextopt)) {
2099 dpy.gl = DISPLAYGL_MODE_CORE;
2100 } else if (strstart(opts, "es", &nextopt)) {
2101 dpy.gl = DISPLAYGL_MODE_ES;
2102 } else if (strstart(opts, "off", &nextopt)) {
2103 dpy.gl = DISPLAYGL_MODE_OFF;
2105 goto invalid_sdl_args;
2109 error_report("invalid SDL option string");
2114 } else if (strstart(p, "vnc", &opts)) {
2116 * vnc isn't a (local) DisplayType but a protocol for remote
2120 vnc_parse(opts + 1, &error_fatal);
2122 error_report("VNC requires a display argument vnc=<display>");
2126 parse_display_qapi(p);
2130 char *qemu_find_file(int type, const char *name)
2136 /* Try the name as a straight path first */
2137 if (access(name, R_OK) == 0) {
2138 trace_load_file(name, name);
2139 return g_strdup(name);
2143 case QEMU_FILE_TYPE_BIOS:
2146 case QEMU_FILE_TYPE_KEYMAP:
2147 subdir = "keymaps/";
2153 for (i = 0; i < data_dir_idx; i++) {
2154 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2155 if (access(buf, R_OK) == 0) {
2156 trace_load_file(name, buf);
2164 static void qemu_add_data_dir(const char *path)
2171 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2174 for (i = 0; i < data_dir_idx; i++) {
2175 if (strcmp(data_dir[i], path) == 0) {
2176 return; /* duplicate */
2179 data_dir[data_dir_idx++] = g_strdup(path);
2182 static inline bool nonempty_str(const char *str)
2187 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2191 const char *name, *file, *str;
2192 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2194 if (fw_cfg == NULL) {
2195 error_report("fw_cfg device not available");
2198 name = qemu_opt_get(opts, "name");
2199 file = qemu_opt_get(opts, "file");
2200 str = qemu_opt_get(opts, "string");
2202 /* we need name and either a file or the content string */
2203 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2204 error_report("invalid argument(s)");
2207 if (nonempty_str(file) && nonempty_str(str)) {
2208 error_report("file and string are mutually exclusive");
2211 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2212 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2215 if (strncmp(name, "opt/", 4) != 0) {
2216 warn_report("externally provided fw_cfg item names "
2217 "should be prefixed with \"opt/\"");
2219 if (nonempty_str(str)) {
2220 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2221 buf = g_memdup(str, size);
2223 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2224 error_report("can't load %s", file);
2228 /* For legacy, keep user files in a specific global order. */
2229 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2230 fw_cfg_add_file(fw_cfg, name, buf, size);
2231 fw_cfg_reset_order_override(fw_cfg);
2235 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2237 return qdev_device_help(opts);
2240 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2245 dev = qdev_device_add(opts, &err);
2247 error_report_err(err);
2250 object_unref(OBJECT(dev));
2254 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2256 Error *local_err = NULL;
2258 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2260 error_report_err(local_err);
2268 #ifdef CONFIG_VIRTFS
2269 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2271 return qemu_fsdev_add(opts);
2275 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2278 const char *chardev;
2282 mode = qemu_opt_get(opts, "mode");
2286 if (strcmp(mode, "readline") == 0) {
2287 flags = MONITOR_USE_READLINE;
2288 } else if (strcmp(mode, "control") == 0) {
2289 flags = MONITOR_USE_CONTROL;
2291 error_report("unknown monitor mode \"%s\"", mode);
2295 if (qemu_opt_get_bool(opts, "pretty", 0))
2296 flags |= MONITOR_USE_PRETTY;
2298 /* OOB is off by default */
2299 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2300 flags |= MONITOR_USE_OOB;
2303 chardev = qemu_opt_get(opts, "chardev");
2304 chr = qemu_chr_find(chardev);
2306 error_report("chardev \"%s\" not found", chardev);
2310 monitor_init(chr, flags);
2314 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2316 static int monitor_device_index = 0;
2321 if (strstart(optarg, "chardev:", &p)) {
2322 snprintf(label, sizeof(label), "%s", p);
2324 snprintf(label, sizeof(label), "compat_monitor%d",
2325 monitor_device_index);
2326 opts = qemu_chr_parse_compat(label, optarg);
2328 error_report("parse error: %s", optarg);
2333 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2334 qemu_opt_set(opts, "mode", mode, &error_abort);
2335 qemu_opt_set(opts, "chardev", label, &error_abort);
2336 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2337 monitor_device_index++;
2340 struct device_config {
2342 DEV_USB, /* -usbdevice */
2344 DEV_SERIAL, /* -serial */
2345 DEV_PARALLEL, /* -parallel */
2346 DEV_VIRTCON, /* -virtioconsole */
2347 DEV_DEBUGCON, /* -debugcon */
2348 DEV_GDB, /* -gdb, -s */
2349 DEV_SCLP, /* s390 sclp */
2351 const char *cmdline;
2353 QTAILQ_ENTRY(device_config) next;
2356 static QTAILQ_HEAD(, device_config) device_configs =
2357 QTAILQ_HEAD_INITIALIZER(device_configs);
2359 static void add_device_config(int type, const char *cmdline)
2361 struct device_config *conf;
2363 conf = g_malloc0(sizeof(*conf));
2365 conf->cmdline = cmdline;
2366 loc_save(&conf->loc);
2367 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2370 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2372 struct device_config *conf;
2375 QTAILQ_FOREACH(conf, &device_configs, next) {
2376 if (conf->type != type)
2378 loc_push_restore(&conf->loc);
2379 rc = func(conf->cmdline);
2380 loc_pop(&conf->loc);
2388 static int serial_parse(const char *devname)
2390 int index = num_serial_hds;
2393 if (strcmp(devname, "none") == 0)
2395 snprintf(label, sizeof(label), "serial%d", index);
2396 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2398 serial_hds[index] = qemu_chr_new(label, devname);
2399 if (!serial_hds[index]) {
2400 error_report("could not connect serial device"
2401 " to character backend '%s'", devname);
2408 Chardev *serial_hd(int i)
2411 if (i < num_serial_hds) {
2412 return serial_hds[i];
2417 int serial_max_hds(void)
2419 return num_serial_hds;
2422 static int parallel_parse(const char *devname)
2424 static int index = 0;
2427 if (strcmp(devname, "none") == 0)
2429 if (index == MAX_PARALLEL_PORTS) {
2430 error_report("too many parallel ports");
2433 snprintf(label, sizeof(label), "parallel%d", index);
2434 parallel_hds[index] = qemu_chr_new(label, devname);
2435 if (!parallel_hds[index]) {
2436 error_report("could not connect parallel device"
2437 " to character backend '%s'", devname);
2444 static int virtcon_parse(const char *devname)
2446 QemuOptsList *device = qemu_find_opts("device");
2447 static int index = 0;
2449 QemuOpts *bus_opts, *dev_opts;
2451 if (strcmp(devname, "none") == 0)
2453 if (index == MAX_VIRTIO_CONSOLES) {
2454 error_report("too many virtio consoles");
2458 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2459 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2461 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2462 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2464 snprintf(label, sizeof(label), "virtcon%d", index);
2465 virtcon_hds[index] = qemu_chr_new(label, devname);
2466 if (!virtcon_hds[index]) {
2467 error_report("could not connect virtio console"
2468 " to character backend '%s'", devname);
2471 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2477 static int debugcon_parse(const char *devname)
2481 if (!qemu_chr_new("debugcon", devname)) {
2484 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2486 error_report("already have a debugcon device");
2489 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2490 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2494 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2496 const MachineClass *mc1 = a, *mc2 = b;
2499 if (mc1->family == NULL) {
2500 if (mc2->family == NULL) {
2501 /* Compare standalone machine types against each other; they sort
2502 * in increasing order.
2504 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2505 object_class_get_name(OBJECT_CLASS(mc2)));
2508 /* Standalone machine types sort after families. */
2512 if (mc2->family == NULL) {
2513 /* Families sort before standalone machine types. */
2517 /* Families sort between each other alphabetically increasingly. */
2518 res = strcmp(mc1->family, mc2->family);
2523 /* Within the same family, machine types sort in decreasing order. */
2524 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2525 object_class_get_name(OBJECT_CLASS(mc1)));
2528 static MachineClass *machine_parse(const char *name)
2530 MachineClass *mc = NULL;
2531 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2534 mc = find_machine(name);
2537 g_slist_free(machines);
2540 if (name && !is_help_option(name)) {
2541 error_report("unsupported machine type");
2542 error_printf("Use -machine help to list supported machines\n");
2544 printf("Supported machines are:\n");
2545 machines = g_slist_sort(machines, machine_class_cmp);
2546 for (el = machines; el; el = el->next) {
2547 MachineClass *mc = el->data;
2549 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2551 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2552 mc->is_default ? " (default)" : "",
2553 mc->deprecation_reason ? " (deprecated)" : "");
2557 g_slist_free(machines);
2558 exit(!name || !is_help_option(name));
2561 void qemu_add_exit_notifier(Notifier *notify)
2563 notifier_list_add(&exit_notifiers, notify);
2566 void qemu_remove_exit_notifier(Notifier *notify)
2568 notifier_remove(notify);
2571 static void qemu_run_exit_notifiers(void)
2573 notifier_list_notify(&exit_notifiers, NULL);
2576 bool machine_init_done;
2578 void qemu_add_machine_init_done_notifier(Notifier *notify)
2580 notifier_list_add(&machine_init_done_notifiers, notify);
2581 if (machine_init_done) {
2582 notify->notify(notify, NULL);
2586 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2588 notifier_remove(notify);
2591 static void qemu_run_machine_init_done_notifiers(void)
2593 machine_init_done = true;
2594 notifier_list_notify(&machine_init_done_notifiers, NULL);
2597 static const QEMUOption *lookup_opt(int argc, char **argv,
2598 const char **poptarg, int *poptind)
2600 const QEMUOption *popt;
2601 int optind = *poptind;
2602 char *r = argv[optind];
2605 loc_set_cmdline(argv, optind, 1);
2607 /* Treat --foo the same as -foo. */
2610 popt = qemu_options;
2613 error_report("invalid option");
2616 if (!strcmp(popt->name, r + 1))
2620 if (popt->flags & HAS_ARG) {
2621 if (optind >= argc) {
2622 error_report("requires an argument");
2625 optarg = argv[optind++];
2626 loc_set_cmdline(argv, optind - 2, 2);
2637 static MachineClass *select_machine(void)
2639 MachineClass *machine_class = find_default_machine();
2644 loc_push_none(&loc);
2646 opts = qemu_get_machine_opts();
2647 qemu_opts_loc_restore(opts);
2649 optarg = qemu_opt_get(opts, "type");
2651 machine_class = machine_parse(optarg);
2654 if (!machine_class) {
2655 error_report("No machine specified, and there is no default");
2656 error_printf("Use -machine help to list supported machines\n");
2661 return machine_class;
2664 static int machine_set_property(void *opaque,
2665 const char *name, const char *value,
2668 Object *obj = OBJECT(opaque);
2669 Error *local_err = NULL;
2672 if (strcmp(name, "type") == 0) {
2676 qom_name = g_strdup(name);
2677 for (p = qom_name; *p; p++) {
2683 object_property_parse(obj, value, qom_name, &local_err);
2687 error_report_err(local_err);
2696 * Initial object creation happens before all other
2697 * QEMU data types are created. The majority of objects
2698 * can be created at this point. The rng-egd object
2699 * cannot be created here, as it depends on the chardev
2702 static bool object_create_initial(const char *type)
2704 if (g_str_equal(type, "rng-egd") ||
2705 g_str_has_prefix(type, "pr-manager-")) {
2709 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2710 if (g_str_equal(type, "cryptodev-vhost-user")) {
2716 * return false for concrete netfilters since
2717 * they depend on netdevs already existing
2719 if (g_str_equal(type, "filter-buffer") ||
2720 g_str_equal(type, "filter-dump") ||
2721 g_str_equal(type, "filter-mirror") ||
2722 g_str_equal(type, "filter-redirector") ||
2723 g_str_equal(type, "colo-compare") ||
2724 g_str_equal(type, "filter-rewriter") ||
2725 g_str_equal(type, "filter-replay")) {
2729 /* Memory allocation by backends needs to be done
2730 * after configure_accelerator() (due to the tcg_enabled()
2731 * checks at memory_region_init_*()).
2733 * Also, allocation of large amounts of memory may delay
2734 * chardev initialization for too long, and trigger timeouts
2735 * on software that waits for a monitor socket to be created
2738 if (g_str_has_prefix(type, "memory-backend-")) {
2747 * The remainder of object creation happens after the
2748 * creation of chardev, fsdev, net clients and device data types.
2750 static bool object_create_delayed(const char *type)
2752 return !object_create_initial(type);
2756 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2760 const char *mem_str;
2761 const ram_addr_t default_ram_size = mc->default_ram_size;
2762 QemuOpts *opts = qemu_find_opts_singleton("memory");
2765 loc_push_none(&loc);
2766 qemu_opts_loc_restore(opts);
2769 mem_str = qemu_opt_get(opts, "size");
2772 error_report("missing 'size' option value");
2776 sz = qemu_opt_get_size(opts, "size", ram_size);
2778 /* Fix up legacy suffix-less format */
2779 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2780 uint64_t overflow_check = sz;
2783 if (sz / MiB != overflow_check) {
2784 error_report("too large 'size' option value");
2790 /* backward compatibility behaviour for case "-m 0" */
2792 sz = default_ram_size;
2795 sz = QEMU_ALIGN_UP(sz, 8192);
2797 if (ram_size != sz) {
2798 error_report("ram size too large");
2802 /* store value for the future use */
2803 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2804 *maxram_size = ram_size;
2806 if (qemu_opt_get(opts, "maxmem")) {
2809 sz = qemu_opt_get_size(opts, "maxmem", 0);
2810 slots = qemu_opt_get_number(opts, "slots", 0);
2811 if (sz < ram_size) {
2812 error_report("invalid value of -m option maxmem: "
2813 "maximum memory size (0x%" PRIx64 ") must be at least "
2814 "the initial memory size (0x" RAM_ADDR_FMT ")",
2817 } else if (slots && sz == ram_size) {
2818 error_report("invalid value of -m option maxmem: "
2819 "memory slots were specified but maximum memory size "
2820 "(0x%" PRIx64 ") is equal to the initial memory size "
2821 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2827 } else if (qemu_opt_get(opts, "slots")) {
2828 error_report("invalid -m option value: missing 'maxmem' option");
2835 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2839 g = g_malloc0(sizeof(*g));
2840 g->driver = qemu_opt_get(opts, "driver");
2841 g->property = qemu_opt_get(opts, "property");
2842 g->value = qemu_opt_get(opts, "value");
2843 g->user_provided = true;
2844 g->errp = &error_fatal;
2845 qdev_prop_register_global(g);
2849 static int qemu_read_default_config_file(void)
2853 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2854 if (ret < 0 && ret != -ENOENT) {
2861 static void user_register_global_props(void)
2863 qemu_opts_foreach(qemu_find_opts("global"),
2864 global_init_func, NULL, NULL);
2868 * Note: we should see that these properties are actually having a
2869 * priority: accel < machine < user. This means e.g. when user
2870 * specifies something in "-global", it'll always be used with highest
2871 * priority than either machine/accelerator compat properties.
2873 static void register_global_properties(MachineState *ms)
2875 accel_register_compat_props(ms->accelerator);
2876 machine_register_compat_props(ms);
2877 user_register_global_props();
2880 int main(int argc, char **argv, char **envp)
2883 int snapshot, linux_boot;
2884 const char *initrd_filename;
2885 const char *kernel_filename, *kernel_cmdline;
2886 const char *boot_order = NULL;
2887 const char *boot_once = NULL;
2889 QemuOpts *opts, *machine_opts;
2890 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2891 QemuOptsList *olist;
2894 const char *loadvm = NULL;
2895 MachineClass *machine_class;
2896 const char *cpu_model;
2897 const char *vga_model = NULL;
2898 const char *qtest_chrdev = NULL;
2899 const char *qtest_log = NULL;
2900 const char *pid_file = NULL;
2901 const char *incoming = NULL;
2902 bool userconfig = true;
2903 bool nographic = false;
2904 int display_remote = 0;
2905 const char *log_mask = NULL;
2906 const char *log_file = NULL;
2907 char *trace_file = NULL;
2908 ram_addr_t maxram_size;
2909 uint64_t ram_slots = 0;
2910 FILE *vmstate_dump_file = NULL;
2911 Error *main_loop_err = NULL;
2913 bool list_data_dirs = false;
2915 typedef struct BlockdevOptions_queue {
2916 BlockdevOptions *bdo;
2918 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2919 } BlockdevOptions_queue;
2920 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2921 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2923 module_call_init(MODULE_INIT_TRACE);
2925 qemu_init_cpu_list();
2926 qemu_init_cpu_loop();
2928 qemu_mutex_lock_iothread();
2930 atexit(qemu_run_exit_notifiers);
2931 error_set_progname(argv[0]);
2932 qemu_init_exec_dir(argv[0]);
2934 module_call_init(MODULE_INIT_QOM);
2936 qemu_add_opts(&qemu_drive_opts);
2937 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2938 qemu_add_drive_opts(&qemu_common_drive_opts);
2939 qemu_add_drive_opts(&qemu_drive_opts);
2940 qemu_add_drive_opts(&bdrv_runtime_opts);
2941 qemu_add_opts(&qemu_chardev_opts);
2942 qemu_add_opts(&qemu_device_opts);
2943 qemu_add_opts(&qemu_netdev_opts);
2944 qemu_add_opts(&qemu_nic_opts);
2945 qemu_add_opts(&qemu_net_opts);
2946 qemu_add_opts(&qemu_rtc_opts);
2947 qemu_add_opts(&qemu_global_opts);
2948 qemu_add_opts(&qemu_mon_opts);
2949 qemu_add_opts(&qemu_trace_opts);
2950 qemu_add_opts(&qemu_option_rom_opts);
2951 qemu_add_opts(&qemu_machine_opts);
2952 qemu_add_opts(&qemu_accel_opts);
2953 qemu_add_opts(&qemu_mem_opts);
2954 qemu_add_opts(&qemu_smp_opts);
2955 qemu_add_opts(&qemu_boot_opts);
2956 qemu_add_opts(&qemu_add_fd_opts);
2957 qemu_add_opts(&qemu_object_opts);
2958 qemu_add_opts(&qemu_tpmdev_opts);
2959 qemu_add_opts(&qemu_realtime_opts);
2960 qemu_add_opts(&qemu_overcommit_opts);
2961 qemu_add_opts(&qemu_msg_opts);
2962 qemu_add_opts(&qemu_name_opts);
2963 qemu_add_opts(&qemu_numa_opts);
2964 qemu_add_opts(&qemu_icount_opts);
2965 qemu_add_opts(&qemu_semihosting_config_opts);
2966 qemu_add_opts(&qemu_fw_cfg_opts);
2967 module_call_init(MODULE_INIT_OPTS);
2970 postcopy_infrastructure_init();
2971 monitor_init_globals();
2973 if (qcrypto_init(&err) < 0) {
2974 error_reportf_err(err, "cannot initialize crypto: ");
2977 rtc_clock = QEMU_CLOCK_HOST;
2979 QLIST_INIT (&vm_change_state_head);
2980 os_setup_early_signal_handling();
2987 bdrv_init_with_whitelist();
2991 /* first pass of option parsing */
2993 while (optind < argc) {
2994 if (argv[optind][0] != '-') {
2998 const QEMUOption *popt;
3000 popt = lookup_opt(argc, argv, &optarg, &optind);
3001 switch (popt->index) {
3002 case QEMU_OPTION_nouserconfig:
3010 if (qemu_read_default_config_file() < 0) {
3015 /* second pass of option parsing */
3020 if (argv[optind][0] != '-') {
3021 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3023 const QEMUOption *popt;
3025 popt = lookup_opt(argc, argv, &optarg, &optind);
3026 if (!(popt->arch_mask & arch_type)) {
3027 error_report("Option not supported for this target");
3030 switch(popt->index) {
3031 case QEMU_OPTION_cpu:
3032 /* hw initialization will check this */
3035 case QEMU_OPTION_hda:
3036 case QEMU_OPTION_hdb:
3037 case QEMU_OPTION_hdc:
3038 case QEMU_OPTION_hdd:
3039 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3042 case QEMU_OPTION_blockdev:
3045 BlockdevOptions_queue *bdo;
3047 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3049 error_report_err(err);
3053 bdo = g_new(BlockdevOptions_queue, 1);
3054 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3057 loc_save(&bdo->loc);
3058 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3061 case QEMU_OPTION_drive:
3062 if (drive_def(optarg) == NULL) {
3066 case QEMU_OPTION_set:
3067 if (qemu_set_option(optarg) != 0)
3070 case QEMU_OPTION_global:
3071 if (qemu_global_option(optarg) != 0)
3074 case QEMU_OPTION_mtdblock:
3075 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3077 case QEMU_OPTION_sd:
3078 drive_add(IF_SD, -1, optarg, SD_OPTS);
3080 case QEMU_OPTION_pflash:
3081 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3083 case QEMU_OPTION_snapshot:
3086 case QEMU_OPTION_numa:
3087 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3093 case QEMU_OPTION_display:
3094 parse_display(optarg);
3096 case QEMU_OPTION_nographic:
3097 olist = qemu_find_opts("machine");
3098 qemu_opts_parse_noisily(olist, "graphics=off", false);
3100 dpy.type = DISPLAY_TYPE_NONE;
3102 case QEMU_OPTION_curses:
3103 #ifdef CONFIG_CURSES
3104 dpy.type = DISPLAY_TYPE_CURSES;
3106 error_report("curses support is disabled");
3110 case QEMU_OPTION_portrait:
3111 graphic_rotate = 90;
3113 case QEMU_OPTION_rotate:
3114 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3115 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3116 graphic_rotate != 180 && graphic_rotate != 270) {
3117 error_report("only 90, 180, 270 deg rotation is available");
3121 case QEMU_OPTION_kernel:
3122 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3125 case QEMU_OPTION_initrd:
3126 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3129 case QEMU_OPTION_append:
3130 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3133 case QEMU_OPTION_dtb:
3134 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3137 case QEMU_OPTION_cdrom:
3138 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3140 case QEMU_OPTION_boot:
3141 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3147 case QEMU_OPTION_fda:
3148 case QEMU_OPTION_fdb:
3149 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3152 case QEMU_OPTION_no_fd_bootchk:
3155 case QEMU_OPTION_netdev:
3157 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3161 case QEMU_OPTION_nic:
3163 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3167 case QEMU_OPTION_net:
3169 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3173 #ifdef CONFIG_LIBISCSI
3174 case QEMU_OPTION_iscsi:
3175 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3183 case QEMU_OPTION_tftp:
3184 error_report("The -tftp option is deprecated. "
3185 "Please use '-netdev user,tftp=...' instead.");
3186 legacy_tftp_prefix = optarg;
3188 case QEMU_OPTION_bootp:
3189 error_report("The -bootp option is deprecated. "
3190 "Please use '-netdev user,bootfile=...' instead.");
3191 legacy_bootp_filename = optarg;
3193 case QEMU_OPTION_redir:
3194 error_report("The -redir option is deprecated. "
3195 "Please use '-netdev user,hostfwd=...' instead.");
3196 if (net_slirp_redir(optarg) < 0)
3200 case QEMU_OPTION_bt:
3201 add_device_config(DEV_BT, optarg);
3203 case QEMU_OPTION_audio_help:
3207 case QEMU_OPTION_soundhw:
3208 select_soundhw (optarg);
3213 case QEMU_OPTION_version:
3218 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3225 case QEMU_OPTION_tpmdev:
3226 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3231 case QEMU_OPTION_mempath:
3234 case QEMU_OPTION_mem_prealloc:
3243 case QEMU_OPTION_DFILTER:
3244 qemu_set_dfilter_ranges(optarg, &error_fatal);
3247 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3249 case QEMU_OPTION_gdb:
3250 add_device_config(DEV_GDB, optarg);
3253 if (is_help_option(optarg)) {
3254 list_data_dirs = true;
3256 qemu_add_data_dir(optarg);
3259 case QEMU_OPTION_bios:
3260 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3263 case QEMU_OPTION_singlestep:
3270 keyboard_layout = optarg;
3272 case QEMU_OPTION_localtime:
3274 warn_report("This option is deprecated, "
3275 "use '-rtc base=localtime' instead.");
3277 case QEMU_OPTION_vga:
3286 w = strtol(p, (char **)&p, 10);
3289 error_report("invalid resolution or depth");
3295 h = strtol(p, (char **)&p, 10);
3300 depth = strtol(p, (char **)&p, 10);
3301 if (depth != 8 && depth != 15 && depth != 16 &&
3302 depth != 24 && depth != 32)
3304 } else if (*p == '\0') {
3305 depth = graphic_depth;
3312 graphic_depth = depth;
3315 case QEMU_OPTION_echr:
3318 term_escape_char = strtol(optarg, &r, 0);
3320 printf("Bad argument to echr\n");
3323 case QEMU_OPTION_monitor:
3324 default_monitor = 0;
3325 if (strncmp(optarg, "none", 4)) {
3326 monitor_parse(optarg, "readline", false);
3329 case QEMU_OPTION_qmp:
3330 monitor_parse(optarg, "control", false);
3331 default_monitor = 0;
3333 case QEMU_OPTION_qmp_pretty:
3334 monitor_parse(optarg, "control", true);
3335 default_monitor = 0;
3337 case QEMU_OPTION_mon:
3338 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3343 default_monitor = 0;
3345 case QEMU_OPTION_chardev:
3346 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3352 case QEMU_OPTION_fsdev:
3353 olist = qemu_find_opts("fsdev");
3355 error_report("fsdev support is disabled");
3358 opts = qemu_opts_parse_noisily(olist, optarg, true);
3363 case QEMU_OPTION_virtfs: {
3366 const char *writeout, *sock_fd, *socket, *path, *security_model;
3368 olist = qemu_find_opts("virtfs");
3370 error_report("virtfs support is disabled");
3373 opts = qemu_opts_parse_noisily(olist, optarg, true);
3378 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3379 qemu_opt_get(opts, "mount_tag") == NULL) {
3380 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3383 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3384 qemu_opts_id(opts) ?:
3385 qemu_opt_get(opts, "mount_tag"),
3388 error_report("duplicate or invalid fsdev id: %s",
3389 qemu_opt_get(opts, "mount_tag"));
3393 writeout = qemu_opt_get(opts, "writeout");
3395 #ifdef CONFIG_SYNC_FILE_RANGE
3396 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3398 error_report("writeout=immediate not supported "
3399 "on this platform");
3403 qemu_opt_set(fsdev, "fsdriver",
3404 qemu_opt_get(opts, "fsdriver"), &error_abort);
3405 path = qemu_opt_get(opts, "path");
3407 qemu_opt_set(fsdev, "path", path, &error_abort);
3409 security_model = qemu_opt_get(opts, "security_model");
3410 if (security_model) {
3411 qemu_opt_set(fsdev, "security_model", security_model,
3414 socket = qemu_opt_get(opts, "socket");
3416 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3418 sock_fd = qemu_opt_get(opts, "sock_fd");
3420 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3423 qemu_opt_set_bool(fsdev, "readonly",
3424 qemu_opt_get_bool(opts, "readonly", 0),
3426 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3428 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3429 qemu_opt_set(device, "fsdev",
3430 qemu_opts_id(fsdev), &error_abort);
3431 qemu_opt_set(device, "mount_tag",
3432 qemu_opt_get(opts, "mount_tag"), &error_abort);
3435 case QEMU_OPTION_virtfs_synth: {
3439 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3442 error_report("duplicate option: %s", "virtfs_synth");
3445 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3447 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3449 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3450 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3451 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3454 case QEMU_OPTION_serial:
3455 add_device_config(DEV_SERIAL, optarg);
3457 if (strncmp(optarg, "mon:", 4) == 0) {
3458 default_monitor = 0;
3461 case QEMU_OPTION_watchdog:
3463 error_report("only one watchdog option may be given");
3468 case QEMU_OPTION_watchdog_action:
3469 if (select_watchdog_action(optarg) == -1) {
3470 error_report("unknown -watchdog-action parameter");
3474 case QEMU_OPTION_virtiocon:
3475 warn_report("This option is deprecated, "
3476 "use '-device virtconsole' instead");
3477 add_device_config(DEV_VIRTCON, optarg);
3478 default_virtcon = 0;
3479 if (strncmp(optarg, "mon:", 4) == 0) {
3480 default_monitor = 0;
3483 case QEMU_OPTION_parallel:
3484 add_device_config(DEV_PARALLEL, optarg);
3485 default_parallel = 0;
3486 if (strncmp(optarg, "mon:", 4) == 0) {
3487 default_monitor = 0;
3490 case QEMU_OPTION_debugcon:
3491 add_device_config(DEV_DEBUGCON, optarg);
3493 case QEMU_OPTION_loadvm:
3496 case QEMU_OPTION_full_screen:
3497 dpy.has_full_screen = true;
3498 dpy.full_screen = true;
3500 case QEMU_OPTION_no_frame:
3501 g_printerr("The -no-frame switch is deprecated, and will be\n"
3502 "removed in a future release.\n");
3505 case QEMU_OPTION_alt_grab:
3508 case QEMU_OPTION_ctrl_grab:
3511 case QEMU_OPTION_no_quit:
3512 dpy.has_window_close = true;
3513 dpy.window_close = false;
3515 case QEMU_OPTION_sdl:
3517 dpy.type = DISPLAY_TYPE_SDL;
3520 error_report("SDL support is disabled");
3523 case QEMU_OPTION_pidfile:
3526 case QEMU_OPTION_win2k_hack:
3527 win2k_install_hack = 1;
3529 case QEMU_OPTION_rtc_td_hack: {
3530 static GlobalProperty slew_lost_ticks = {
3531 .driver = "mc146818rtc",
3532 .property = "lost_tick_policy",
3536 qdev_prop_register_global(&slew_lost_ticks);
3537 warn_report("This option is deprecated, "
3538 "use '-rtc driftfix=slew' instead.");
3541 case QEMU_OPTION_acpitable:
3542 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3547 acpi_table_add(opts, &error_fatal);
3549 case QEMU_OPTION_smbios:
3550 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3555 smbios_entry_add(opts, &error_fatal);
3557 case QEMU_OPTION_fwcfg:
3558 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3564 case QEMU_OPTION_preconfig:
3565 preconfig_exit_requested = false;
3567 case QEMU_OPTION_enable_kvm:
3568 olist = qemu_find_opts("machine");
3569 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3571 case QEMU_OPTION_enable_hax:
3572 warn_report("Option is deprecated, use '-accel hax' instead");
3573 olist = qemu_find_opts("machine");
3574 qemu_opts_parse_noisily(olist, "accel=hax", false);
3577 case QEMU_OPTION_machine:
3578 olist = qemu_find_opts("machine");
3579 opts = qemu_opts_parse_noisily(olist, optarg, true);
3584 case QEMU_OPTION_no_kvm:
3585 olist = qemu_find_opts("machine");
3586 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3588 case QEMU_OPTION_accel:
3589 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3591 optarg = qemu_opt_get(accel_opts, "accel");
3592 if (!optarg || is_help_option(optarg)) {
3593 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3596 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3597 false, &error_abort);
3598 qemu_opt_set(opts, "accel", optarg, &error_abort);
3600 case QEMU_OPTION_usb:
3601 olist = qemu_find_opts("machine");
3602 qemu_opts_parse_noisily(olist, "usb=on", false);
3604 case QEMU_OPTION_usbdevice:
3605 error_report("'-usbdevice' is deprecated, please use "
3606 "'-device usb-...' instead");
3607 olist = qemu_find_opts("machine");
3608 qemu_opts_parse_noisily(olist, "usb=on", false);
3609 add_device_config(DEV_USB, optarg);
3611 case QEMU_OPTION_device:
3612 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3617 case QEMU_OPTION_smp:
3618 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3623 case QEMU_OPTION_vnc:
3624 vnc_parse(optarg, &error_fatal);
3626 case QEMU_OPTION_no_acpi:
3629 case QEMU_OPTION_no_hpet:
3632 case QEMU_OPTION_no_reboot:
3635 case QEMU_OPTION_no_shutdown:
3638 case QEMU_OPTION_show_cursor:
3641 case QEMU_OPTION_uuid:
3642 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3643 error_report("failed to parse UUID string: wrong format");
3646 qemu_uuid_set = true;
3648 case QEMU_OPTION_option_rom:
3649 if (nb_option_roms >= MAX_OPTION_ROMS) {
3650 error_report("too many option ROMs");
3653 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3658 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3659 option_rom[nb_option_roms].bootindex =
3660 qemu_opt_get_number(opts, "bootindex", -1);
3661 if (!option_rom[nb_option_roms].name) {
3662 error_report("Option ROM file is not specified");
3667 case QEMU_OPTION_semihosting:
3668 semihosting.enabled = true;
3669 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3671 case QEMU_OPTION_semihosting_config:
3672 semihosting.enabled = true;
3673 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3676 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3678 const char *target = qemu_opt_get(opts, "target");
3679 if (target != NULL) {
3680 if (strcmp("native", target) == 0) {
3681 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3682 } else if (strcmp("gdb", target) == 0) {
3683 semihosting.target = SEMIHOSTING_TARGET_GDB;
3684 } else if (strcmp("auto", target) == 0) {
3685 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3687 error_report("unsupported semihosting-config %s",
3692 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3694 /* Set semihosting argument count and vector */
3695 qemu_opt_foreach(opts, add_semihosting_arg,
3696 &semihosting, NULL);
3698 error_report("unsupported semihosting-config %s", optarg);
3702 case QEMU_OPTION_name:
3703 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3709 case QEMU_OPTION_prom_env:
3710 if (nb_prom_envs >= MAX_PROM_ENVS) {
3711 error_report("too many prom variables");
3714 prom_envs[nb_prom_envs] = optarg;
3717 case QEMU_OPTION_old_param:
3720 case QEMU_OPTION_clock:
3721 /* Clock options no longer exist. Keep this option for
3722 * backward compatibility.
3724 warn_report("This option is ignored and will be removed soon");
3726 case QEMU_OPTION_startdate:
3727 warn_report("This option is deprecated, use '-rtc base=' instead.");
3728 configure_rtc_date_offset(optarg, 1);
3730 case QEMU_OPTION_rtc:
3731 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3736 configure_rtc(opts);
3738 case QEMU_OPTION_tb_size:
3740 error_report("TCG is disabled");
3743 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3744 error_report("Invalid argument to -tb-size");
3748 case QEMU_OPTION_icount:
3749 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3755 case QEMU_OPTION_incoming:
3757 runstate_set(RUN_STATE_INMIGRATE);
3761 case QEMU_OPTION_only_migratable:
3763 * TODO: we can remove this option one day, and we
3766 * "-global migration.only-migratable=true"
3768 qemu_global_option("migration.only-migratable=true");
3770 case QEMU_OPTION_nodefaults:
3773 case QEMU_OPTION_xen_domid:
3774 if (!(xen_available())) {
3775 error_report("Option not supported for this target");
3778 xen_domid = atoi(optarg);
3780 case QEMU_OPTION_xen_create:
3781 if (!(xen_available())) {
3782 error_report("Option not supported for this target");
3785 xen_mode = XEN_CREATE;
3787 case QEMU_OPTION_xen_attach:
3788 if (!(xen_available())) {
3789 error_report("Option not supported for this target");
3792 xen_mode = XEN_ATTACH;
3794 case QEMU_OPTION_xen_domid_restrict:
3795 if (!(xen_available())) {
3796 error_report("Option not supported for this target");
3799 xen_domid_restrict = true;
3801 case QEMU_OPTION_trace:
3803 trace_file = trace_opt_parse(optarg);
3805 case QEMU_OPTION_readconfig:
3807 int ret = qemu_read_config_file(optarg);
3809 error_report("read config %s: %s", optarg,
3815 case QEMU_OPTION_spice:
3816 olist = qemu_find_opts("spice");
3818 error_report("spice support is disabled");
3821 opts = qemu_opts_parse_noisily(olist, optarg, false);
3827 case QEMU_OPTION_writeconfig:
3830 if (strcmp(optarg, "-") == 0) {
3833 fp = fopen(optarg, "w");
3835 error_report("open %s: %s", optarg,
3840 qemu_config_write(fp);
3846 case QEMU_OPTION_qtest:
3847 qtest_chrdev = optarg;
3849 case QEMU_OPTION_qtest_log:
3852 case QEMU_OPTION_sandbox:
3853 #ifdef CONFIG_SECCOMP
3854 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3860 error_report("-sandbox support is not enabled "
3861 "in this QEMU binary");
3865 case QEMU_OPTION_add_fd:
3867 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3873 error_report("File descriptor passing is disabled on this "
3878 case QEMU_OPTION_object:
3879 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3885 case QEMU_OPTION_realtime:
3886 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3891 /* Don't override the -overcommit option if set */
3892 enable_mlock = enable_mlock ||
3893 qemu_opt_get_bool(opts, "mlock", true);
3895 case QEMU_OPTION_overcommit:
3896 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3901 /* Don't override the -realtime option if set */
3902 enable_mlock = enable_mlock ||
3903 qemu_opt_get_bool(opts, "mem-lock", false);
3904 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3906 case QEMU_OPTION_msg:
3907 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3912 configure_msg(opts);
3914 case QEMU_OPTION_dump_vmstate:
3915 if (vmstate_dump_file) {
3916 error_report("only one '-dump-vmstate' "
3917 "option may be given");
3920 vmstate_dump_file = fopen(optarg, "w");
3921 if (vmstate_dump_file == NULL) {
3922 error_report("open %s: %s", optarg, strerror(errno));
3926 case QEMU_OPTION_enable_sync_profile:
3929 case QEMU_OPTION_nouserconfig:
3930 /* Nothing to be parsed here. Especially, do not error out below. */
3933 if (os_parse_cmd_args(popt->index, optarg)) {
3934 error_report("Option not supported in this build");
3941 * Clear error location left behind by the loop.
3942 * Best done right after the loop. Do not insert code here!
3946 replay_configure(icount_opts);
3948 if (incoming && !preconfig_exit_requested) {
3949 error_report("'preconfig' and 'incoming' options are "
3950 "mutually exclusive");
3954 machine_class = select_machine();
3956 set_memory_options(&ram_slots, &maxram_size, machine_class);
3959 rcu_disable_atfork();
3961 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3962 error_report("could not acquire pid file: %s", strerror(errno));
3966 if (qemu_init_main_loop(&main_loop_err)) {
3967 error_report_err(main_loop_err);
3971 #ifdef CONFIG_SECCOMP
3972 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
3973 parse_sandbox, NULL, NULL)) {
3978 if (qemu_opts_foreach(qemu_find_opts("name"),
3979 parse_name, NULL, NULL)) {
3984 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3985 parse_add_fd, NULL, NULL)) {
3989 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3990 cleanup_add_fd, NULL, NULL)) {
3995 current_machine = MACHINE(object_new(object_class_get_name(
3996 OBJECT_CLASS(machine_class))));
3997 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4000 object_property_add_child(object_get_root(), "machine",
4001 OBJECT(current_machine), &error_abort);
4003 if (machine_class->minimum_page_bits) {
4004 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4005 /* This would be a board error: specifying a minimum smaller than
4006 * a target's compile-time fixed setting.
4008 g_assert_not_reached();
4012 cpu_exec_init_all();
4014 if (machine_class->hw_version) {
4015 qemu_set_hw_version(machine_class->hw_version);
4018 if (cpu_model && is_help_option(cpu_model)) {
4019 list_cpus(stdout, &fprintf, cpu_model);
4023 if (!trace_init_backends()) {
4026 trace_init_file(trace_file);
4028 /* Open the logfile at this point and set the log mask if necessary.
4031 qemu_set_log_filename(log_file, &error_fatal);
4036 mask = qemu_str_to_log_mask(log_mask);
4038 qemu_print_log_usage(stdout);
4046 /* add configured firmware directories */
4047 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4048 for (i = 0; dirs[i] != NULL; i++) {
4049 qemu_add_data_dir(dirs[i]);
4053 /* try to find datadir relative to the executable path */
4054 dir = os_find_datadir();
4055 qemu_add_data_dir(dir);
4058 /* add the datadir specified when building */
4059 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4061 /* -L help lists the data directories and exits. */
4062 if (list_data_dirs) {
4063 for (i = 0; i < data_dir_idx; i++) {
4064 printf("%s\n", data_dir[i]);
4069 /* machine_class: default to UP */
4070 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4071 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4072 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4074 /* default to machine_class->default_cpus */
4075 smp_cpus = machine_class->default_cpus;
4076 max_cpus = machine_class->default_cpus;
4078 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4080 /* sanity-check smp_cpus and max_cpus against machine_class */
4081 if (smp_cpus < machine_class->min_cpus) {
4082 error_report("Invalid SMP CPUs %d. The min CPUs "
4083 "supported by machine '%s' is %d", smp_cpus,
4084 machine_class->name, machine_class->min_cpus);
4087 if (max_cpus > machine_class->max_cpus) {
4088 error_report("Invalid SMP CPUs %d. The max CPUs "
4089 "supported by machine '%s' is %d", max_cpus,
4090 machine_class->name, machine_class->max_cpus);
4095 * Get the default machine options from the machine if it is not already
4096 * specified either by the configuration file or by the command line.
4098 if (machine_class->default_machine_opts) {
4099 qemu_opts_set_defaults(qemu_find_opts("machine"),
4100 machine_class->default_machine_opts, 0);
4103 qemu_opts_foreach(qemu_find_opts("device"),
4104 default_driver_check, NULL, NULL);
4105 qemu_opts_foreach(qemu_find_opts("global"),
4106 default_driver_check, NULL, NULL);
4108 if (!vga_model && !default_vga) {
4109 vga_interface_type = VGA_DEVICE;
4111 if (!has_defaults || machine_class->no_serial) {
4114 if (!has_defaults || machine_class->no_parallel) {
4115 default_parallel = 0;
4117 if (!has_defaults || !machine_class->use_virtcon) {
4118 default_virtcon = 0;
4120 if (!has_defaults || machine_class->no_floppy) {
4123 if (!has_defaults || machine_class->no_cdrom) {
4126 if (!has_defaults || machine_class->no_sdcard) {
4129 if (!has_defaults) {
4130 default_monitor = 0;
4135 if (is_daemonized()) {
4136 if (!preconfig_exit_requested) {
4137 error_report("'preconfig' and 'daemonize' options are "
4138 "mutually exclusive");
4142 /* According to documentation and historically, -nographic redirects
4143 * serial port, parallel port and monitor to stdio, which does not work
4144 * with -daemonize. We can redirect these to null instead, but since
4145 * -nographic is legacy, let's just error out.
4146 * We disallow -nographic only if all other ports are not redirected
4147 * explicitly, to not break existing legacy setups which uses
4148 * -nographic _and_ redirects all ports explicitly - this is valid
4149 * usage, -nographic is just a no-op in this case.
4152 && (default_parallel || default_serial
4153 || default_monitor || default_virtcon)) {
4154 error_report("-nographic cannot be used with -daemonize");
4157 #ifdef CONFIG_CURSES
4158 if (dpy.type == DISPLAY_TYPE_CURSES) {
4159 error_report("curses display cannot be used with -daemonize");
4166 if (default_parallel)
4167 add_device_config(DEV_PARALLEL, "null");
4168 if (default_serial && default_monitor) {
4169 add_device_config(DEV_SERIAL, "mon:stdio");
4170 } else if (default_virtcon && default_monitor) {
4171 add_device_config(DEV_VIRTCON, "mon:stdio");
4174 add_device_config(DEV_SERIAL, "stdio");
4175 if (default_virtcon)
4176 add_device_config(DEV_VIRTCON, "stdio");
4177 if (default_monitor)
4178 monitor_parse("stdio", "readline", false);
4182 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4183 if (default_parallel)
4184 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4185 if (default_monitor)
4186 monitor_parse("vc:80Cx24C", "readline", false);
4187 if (default_virtcon)
4188 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4191 #if defined(CONFIG_VNC)
4192 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4196 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4197 if (!qemu_display_find_default(&dpy)) {
4198 dpy.type = DISPLAY_TYPE_NONE;
4199 #if defined(CONFIG_VNC)
4200 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4204 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4205 dpy.type = DISPLAY_TYPE_NONE;
4208 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4209 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4210 "for SDL, ignoring option");
4212 if (dpy.has_window_close &&
4213 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4214 error_report("-no-quit is only valid for GTK and SDL, "
4218 qemu_display_early_init(&dpy);
4219 qemu_console_early_init();
4221 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4222 #if defined(CONFIG_OPENGL)
4223 error_report("OpenGL is not supported by the display");
4225 error_report("OpenGL support is disabled");
4233 if (qemu_opts_foreach(qemu_find_opts("object"),
4234 user_creatable_add_opts_foreach,
4235 object_create_initial, NULL)) {
4239 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4240 chardev_init_func, NULL, NULL)) {
4244 #ifdef CONFIG_VIRTFS
4245 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4246 fsdev_init_func, NULL, NULL)) {
4251 if (qemu_opts_foreach(qemu_find_opts("device"),
4252 device_help_func, NULL, NULL)) {
4256 machine_opts = qemu_get_machine_opts();
4257 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4259 object_unref(OBJECT(current_machine));
4263 configure_accelerator(current_machine);
4265 if (!qtest_enabled() && machine_class->deprecation_reason) {
4266 error_report("Machine type '%s' is deprecated: %s",
4267 machine_class->name, machine_class->deprecation_reason);
4271 * Register all the global properties, including accel properties,
4272 * machine properties, and user-specified ones.
4274 register_global_properties(current_machine);
4277 * Migration object can only be created after global properties
4278 * are applied correctly.
4280 migration_object_init();
4283 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4286 machine_opts = qemu_get_machine_opts();
4287 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4288 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4289 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4290 bios_name = qemu_opt_get(machine_opts, "firmware");
4292 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4294 boot_order = qemu_opt_get(opts, "order");
4296 validate_bootdevices(boot_order, &error_fatal);
4299 boot_once = qemu_opt_get(opts, "once");
4301 validate_bootdevices(boot_once, &error_fatal);
4304 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4305 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4309 boot_order = machine_class->default_boot_order;
4312 if (!kernel_cmdline) {
4313 kernel_cmdline = "";
4314 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4317 linux_boot = (kernel_filename != NULL);
4319 if (!linux_boot && *kernel_cmdline != '\0') {
4320 error_report("-append only allowed with -kernel option");
4324 if (!linux_boot && initrd_filename != NULL) {
4325 error_report("-initrd only allowed with -kernel option");
4329 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4330 /* fall back to the -kernel/-append */
4331 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4334 os_set_line_buffering();
4336 /* spice needs the timers to be initialized by this point */
4341 if (!tcg_enabled()) {
4342 error_report("-icount is not allowed with hardware virtualization");
4345 configure_icount(icount_opts, &error_abort);
4346 qemu_opts_del(icount_opts);
4349 if (tcg_enabled()) {
4350 qemu_tcg_configure(accel_opts, &error_fatal);
4354 QemuOptsList *net = qemu_find_opts("net");
4355 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4357 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4363 if (net_init_clients(&err) < 0) {
4364 error_report_err(err);
4368 if (qemu_opts_foreach(qemu_find_opts("object"),
4369 user_creatable_add_opts_foreach,
4370 object_create_delayed, NULL)) {
4374 if (tpm_init() < 0) {
4378 /* init the bluetooth world */
4379 if (foreach_device_config(DEV_BT, bt_parse))
4382 if (!xen_enabled()) {
4383 /* On 32-bit hosts, QEMU is limited by virtual address space */
4384 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4385 error_report("at most 2047 MB RAM can be simulated");
4392 dirty_bitmap_mig_init();
4394 /* If the currently selected machine wishes to override the units-per-bus
4395 * property of its default HBA interface type, do so now. */
4396 if (machine_class->units_per_default_bus) {
4397 override_max_devs(machine_class->block_default_type,
4398 machine_class->units_per_default_bus);
4401 /* open the virtual block devices */
4402 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4403 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4405 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4406 loc_push_restore(&bdo->loc);
4407 qmp_blockdev_add(bdo->bdo, &error_fatal);
4409 qapi_free_BlockdevOptions(bdo->bdo);
4412 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4413 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4416 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4417 &machine_class->block_default_type, NULL)) {
4421 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4423 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4424 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4426 if (qemu_opts_foreach(qemu_find_opts("mon"),
4427 mon_init_func, NULL, NULL)) {
4431 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4433 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4435 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4437 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4440 /* If no default VGA is requested, the default is "none". */
4442 if (machine_class->default_display) {
4443 vga_model = machine_class->default_display;
4444 } else if (vga_interface_available(VGA_CIRRUS)) {
4445 vga_model = "cirrus";
4446 } else if (vga_interface_available(VGA_STD)) {
4451 select_vgahw(vga_model);
4455 i = select_watchdog(watchdog);
4457 exit (i == 1 ? 1 : 0);
4460 /* This checkpoint is required by replay to separate prior clock
4461 reading from the other reads, because timer polling functions query
4462 clock values from the log. */
4463 replay_checkpoint(CHECKPOINT_INIT);
4464 qdev_machine_init();
4466 current_machine->ram_size = ram_size;
4467 current_machine->maxram_size = maxram_size;
4468 current_machine->ram_slots = ram_slots;
4469 current_machine->boot_order = boot_order;
4471 /* parse features once if machine provides default cpu_type */
4472 current_machine->cpu_type = machine_class->default_cpu_type;
4474 current_machine->cpu_type = parse_cpu_model(cpu_model);
4476 parse_numa_opts(current_machine);
4478 /* do monitor/qmp handling at preconfig state if requested */
4481 /* from here on runstate is RUN_STATE_PRELAUNCH */
4482 machine_run_board_init(current_machine);
4488 if (hax_enabled()) {
4492 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4493 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4497 /* init USB devices */
4498 if (machine_usb(current_machine)) {
4499 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4503 /* Check if IGD GFX passthrough. */
4506 /* init generic devices */
4507 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4508 if (qemu_opts_foreach(qemu_find_opts("device"),
4509 device_init_func, NULL, NULL)) {
4513 cpu_synchronize_all_post_init();
4515 rom_reset_order_override();
4517 /* Did we create any drives that we failed to create a device for? */
4518 drive_check_orphaned();
4520 /* Don't warn about the default network setup that you get if
4521 * no command line -net or -netdev options are specified. There
4522 * are two cases that we would otherwise complain about:
4523 * (1) board doesn't support a NIC but the implicit "-net nic"
4525 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4526 * sets up a nic that isn't connected to anything.
4528 if (!default_net && (!qtest_enabled() || has_defaults)) {
4529 net_check_clients();
4533 qemu_boot_set(boot_once, &error_fatal);
4534 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4537 /* init local displays */
4538 ds = init_displaystate();
4539 qemu_display_init(ds, &dpy);
4541 /* must be after terminal init, SDL library changes signal handlers */
4542 os_setup_signal_handling();
4544 /* init remote displays */
4546 qemu_opts_foreach(qemu_find_opts("vnc"),
4547 vnc_init_func, NULL, NULL);
4551 qemu_spice_display_init();
4554 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4558 qdev_machine_creation_done();
4560 /* TODO: once all bus devices are qdevified, this should be done
4561 * when bus is created by qdev.c */
4562 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4563 qemu_run_machine_init_done_notifiers();
4565 if (rom_check_and_register_reset() != 0) {
4566 error_report("rom check and register reset failed");
4572 /* This checkpoint is required by replay to separate prior clock
4573 reading from the other reads, because timer polling functions query
4574 clock values from the log. */
4575 replay_checkpoint(CHECKPOINT_RESET);
4576 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4577 register_global_state();
4578 if (replay_mode != REPLAY_MODE_NONE) {
4579 replay_vmstate_init();
4580 } else if (loadvm) {
4581 Error *local_err = NULL;
4582 if (load_snapshot(loadvm, &local_err) < 0) {
4583 error_report_err(local_err);
4588 qdev_prop_check_globals();
4589 if (vmstate_dump_file) {
4591 dump_vmstate_json_to_file(vmstate_dump_file);
4596 Error *local_err = NULL;
4597 qemu_start_incoming_migration(incoming, &local_err);
4599 error_reportf_err(local_err, "-incoming %s: ", incoming);
4602 } else if (autostart) {
4606 accel_setup_post(current_machine);
4611 gdbserver_cleanup();
4613 /* No more vcpu or device emulation activity beyond this point */
4616 job_cancel_sync_all();
4621 /* vhost-user must be cleaned up before chardevs. */
4627 user_creatable_cleanup();
4628 migration_object_finalize();
4629 /* TODO: unref root container, check all devices are ok */