4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31 #include "sysemu/seccomp.h"
34 #if defined(__APPLE__) || defined(main)
36 int qemu_main(int argc, char **argv, char **envp);
37 int main(int argc, char **argv)
39 return qemu_main(argc, argv, NULL);
42 #define main qemu_main
44 #endif /* CONFIG_SDL */
48 #define main qemu_main
49 #endif /* CONFIG_COCOA */
52 #include "qemu/error-report.h"
53 #include "qemu/sockets.h"
55 #include "hw/boards.h"
56 #include "sysemu/accel.h"
58 #include "hw/isa/isa.h"
59 #include "hw/scsi/scsi.h"
60 #include "hw/display/vga.h"
62 #include "sysemu/watchdog.h"
63 #include "hw/smbios/smbios.h"
64 #include "hw/acpi/acpi.h"
65 #include "hw/xen/xen.h"
67 #include "hw/loader.h"
68 #include "monitor/qdev.h"
69 #include "sysemu/bt.h"
71 #include "net/slirp.h"
72 #include "monitor/monitor.h"
73 #include "ui/console.h"
75 #include "sysemu/sysemu.h"
76 #include "sysemu/numa.h"
77 #include "exec/gdbstub.h"
78 #include "qemu/timer.h"
79 #include "chardev/char.h"
80 #include "qemu/bitmap.h"
82 #include "sysemu/blockdev.h"
83 #include "hw/block/block.h"
84 #include "migration/misc.h"
85 #include "migration/snapshot.h"
86 #include "migration/global_state.h"
87 #include "sysemu/tpm.h"
88 #include "sysemu/dma.h"
89 #include "hw/audio/soundhw.h"
90 #include "audio/audio.h"
91 #include "sysemu/cpus.h"
92 #include "migration/colo.h"
93 #include "migration/postcopy-ram.h"
94 #include "sysemu/kvm.h"
95 #include "sysemu/hax.h"
96 #include "qapi/qobject-input-visitor.h"
97 #include "qemu/option.h"
98 #include "qemu/config-file.h"
99 #include "qemu-options.h"
100 #include "qemu/main-loop.h"
102 #include "fsdev/qemu-fsdev.h"
104 #include "sysemu/qtest.h"
106 #include "disas/disas.h"
109 #include "slirp/libslirp.h"
111 #include "trace-root.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/arch_init.h"
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qapi/clone-visitor.h"
120 #include "qom/object_interfaces.h"
121 #include "exec/semihost.h"
122 #include "crypto/init.h"
123 #include "sysemu/replay.h"
124 #include "qapi/qapi-events-run-state.h"
125 #include "qapi/qapi-visit-block-core.h"
126 #include "qapi/qapi-visit-ui.h"
127 #include "qapi/qapi-commands-block-core.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-commands-run-state.h"
130 #include "qapi/qmp/qerror.h"
131 #include "sysemu/iothread.h"
133 #define MAX_VIRTIO_CONSOLES 1
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 const char* keyboard_layout = NULL;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
146 NICInfo nd_table[MAX_NICS];
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static DisplayOptions dpy;
154 static int num_serial_hds = 0;
155 static Chardev **serial_hds = NULL;
156 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
157 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
158 int win2k_install_hack = 0;
161 unsigned int max_cpus;
164 int acpi_enabled = 1;
167 static int no_reboot;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 const char *qemu_name;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
186 int icount_align_option;
188 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
189 * little-endian "wire format" described in the SMBIOS 2.6 specification.
194 static NotifierList exit_notifiers =
195 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
197 static NotifierList machine_init_done_notifiers =
198 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202 enum xen_mode xen_mode = XEN_EMULATE;
203 bool xen_domid_restrict;
205 static int has_defaults = 1;
206 static int default_serial = 1;
207 static int default_parallel = 1;
208 static int default_virtcon = 1;
209 static int default_monitor = 1;
210 static int default_floppy = 1;
211 static int default_cdrom = 1;
212 static int default_sdcard = 1;
213 static int default_vga = 1;
214 static int default_net = 1;
220 { .driver = "isa-serial", .flag = &default_serial },
221 { .driver = "isa-parallel", .flag = &default_parallel },
222 { .driver = "isa-fdc", .flag = &default_floppy },
223 { .driver = "floppy", .flag = &default_floppy },
224 { .driver = "ide-cd", .flag = &default_cdrom },
225 { .driver = "ide-hd", .flag = &default_cdrom },
226 { .driver = "ide-drive", .flag = &default_cdrom },
227 { .driver = "scsi-cd", .flag = &default_cdrom },
228 { .driver = "scsi-hd", .flag = &default_cdrom },
229 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
230 { .driver = "virtio-serial", .flag = &default_virtcon },
231 { .driver = "VGA", .flag = &default_vga },
232 { .driver = "isa-vga", .flag = &default_vga },
233 { .driver = "cirrus-vga", .flag = &default_vga },
234 { .driver = "isa-cirrus-vga", .flag = &default_vga },
235 { .driver = "vmware-svga", .flag = &default_vga },
236 { .driver = "qxl-vga", .flag = &default_vga },
237 { .driver = "virtio-vga", .flag = &default_vga },
240 static QemuOptsList qemu_rtc_opts = {
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .type = QEMU_OPT_STRING,
249 .type = QEMU_OPT_STRING,
252 .type = QEMU_OPT_STRING,
254 { /* end of list */ }
258 static QemuOptsList qemu_option_rom_opts = {
259 .name = "option-rom",
260 .implied_opt_name = "romfile",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
265 .type = QEMU_OPT_NUMBER,
268 .type = QEMU_OPT_STRING,
270 { /* end of list */ }
274 static QemuOptsList qemu_machine_opts = {
276 .implied_opt_name = "type",
278 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 * no elements => accept any
282 * sanity checking will happen later
283 * when setting machine properties
289 static QemuOptsList qemu_accel_opts = {
291 .implied_opt_name = "accel",
292 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
297 .type = QEMU_OPT_STRING,
298 .help = "Select the type of accelerator",
302 .type = QEMU_OPT_STRING,
303 .help = "Enable/disable multi-threaded TCG",
305 { /* end of list */ }
309 static QemuOptsList qemu_boot_opts = {
311 .implied_opt_name = "order",
313 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
317 .type = QEMU_OPT_STRING,
320 .type = QEMU_OPT_STRING,
323 .type = QEMU_OPT_BOOL,
326 .type = QEMU_OPT_STRING,
328 .name = "splash-time",
329 .type = QEMU_OPT_STRING,
331 .name = "reboot-timeout",
332 .type = QEMU_OPT_STRING,
335 .type = QEMU_OPT_BOOL,
341 static QemuOptsList qemu_add_fd_opts = {
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
347 .type = QEMU_OPT_NUMBER,
348 .help = "file descriptor of which a duplicate is added to fd set",
351 .type = QEMU_OPT_NUMBER,
352 .help = "ID of the fd set to add fd to",
355 .type = QEMU_OPT_STRING,
356 .help = "free-form string used to describe fd",
358 { /* end of list */ }
362 static QemuOptsList qemu_object_opts = {
364 .implied_opt_name = "qom-type",
365 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
371 static QemuOptsList qemu_tpmdev_opts = {
373 .implied_opt_name = "type",
374 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
376 /* options are defined in the TPM backends */
377 { /* end of list */ }
381 static QemuOptsList qemu_realtime_opts = {
383 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
387 .type = QEMU_OPT_BOOL,
389 { /* end of list */ }
393 static QemuOptsList qemu_msg_opts = {
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
399 .type = QEMU_OPT_BOOL,
401 { /* end of list */ }
405 static QemuOptsList qemu_name_opts = {
407 .implied_opt_name = "guest",
409 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
413 .type = QEMU_OPT_STRING,
414 .help = "Sets the name of the guest.\n"
415 "This name will be displayed in the SDL window caption.\n"
416 "The name will also be used for the VNC server",
419 .type = QEMU_OPT_STRING,
420 .help = "Sets the name of the QEMU process, as shown in top etc",
422 .name = "debug-threads",
423 .type = QEMU_OPT_BOOL,
424 .help = "When enabled, name the individual threads; defaults off.\n"
425 "NOTE: The thread names are for debugging and not a\n"
428 { /* End of list */ }
432 static QemuOptsList qemu_mem_opts = {
434 .implied_opt_name = "size",
435 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
440 .type = QEMU_OPT_SIZE,
444 .type = QEMU_OPT_NUMBER,
448 .type = QEMU_OPT_SIZE,
450 { /* end of list */ }
454 static QemuOptsList qemu_icount_opts = {
456 .implied_opt_name = "shift",
458 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
462 .type = QEMU_OPT_STRING,
465 .type = QEMU_OPT_BOOL,
468 .type = QEMU_OPT_BOOL,
471 .type = QEMU_OPT_STRING,
474 .type = QEMU_OPT_STRING,
476 .name = "rrsnapshot",
477 .type = QEMU_OPT_STRING,
479 { /* end of list */ }
483 static QemuOptsList qemu_semihosting_config_opts = {
484 .name = "semihosting-config",
485 .implied_opt_name = "enable",
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
490 .type = QEMU_OPT_BOOL,
493 .type = QEMU_OPT_STRING,
496 .type = QEMU_OPT_STRING,
498 { /* end of list */ }
502 static QemuOptsList qemu_fw_cfg_opts = {
504 .implied_opt_name = "name",
505 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
509 .type = QEMU_OPT_STRING,
510 .help = "Sets the fw_cfg name of the blob to be inserted",
513 .type = QEMU_OPT_STRING,
514 .help = "Sets the name of the file from which\n"
515 "the fw_cfg blob will be loaded",
518 .type = QEMU_OPT_STRING,
519 .help = "Sets content of the blob to be inserted from a string",
521 { /* end of list */ }
526 * Get machine options
528 * Returns: machine options (never null).
530 QemuOpts *qemu_get_machine_opts(void)
532 return qemu_find_opts_singleton("machine");
535 const char *qemu_get_vm_name(void)
540 static void res_free(void)
542 g_free(boot_splash_filedata);
543 boot_splash_filedata = NULL;
546 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
548 const char *driver = qemu_opt_get(opts, "driver");
553 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
554 if (strcmp(default_list[i].driver, driver) != 0)
556 *(default_list[i].flag) = 0;
561 /***********************************************************/
564 static RunState current_run_state = RUN_STATE_PRECONFIG;
566 /* We use RUN_STATE__MAX but any invalid value will do */
567 static RunState vmstop_requested = RUN_STATE__MAX;
568 static QemuMutex vmstop_lock;
573 } RunStateTransition;
575 static const RunStateTransition runstate_transitions_def[] = {
577 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
578 /* Early switch to inmigrate state to allow -incoming CLI option work
579 * as it used to. TODO: delay actual switching to inmigrate state to
580 * the point after machine is built and remove this hack.
582 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
584 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
585 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
588 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
591 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
593 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
595 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
596 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
598 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
599 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
606 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
609 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
610 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
612 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_PAUSED, RUN_STATE_COLO},
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
619 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
629 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
630 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_COLO, RUN_STATE_RUNNING },
634 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
635 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
637 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
638 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
641 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
642 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
643 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
644 { RUN_STATE_RUNNING, RUN_STATE_COLO},
646 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
652 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
653 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
654 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
655 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
656 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
657 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
659 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
660 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
662 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
668 { RUN_STATE__MAX, RUN_STATE__MAX },
671 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
673 bool runstate_check(RunState state)
675 return current_run_state == state;
678 bool runstate_store(char *str, size_t size)
680 const char *state = RunState_str(current_run_state);
681 size_t len = strlen(state) + 1;
686 memcpy(str, state, len);
690 static void runstate_init(void)
692 const RunStateTransition *p;
694 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
695 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
696 runstate_valid_transitions[p->from][p->to] = true;
699 qemu_mutex_init(&vmstop_lock);
702 /* This function will abort() on invalid state transitions */
703 void runstate_set(RunState new_state)
705 assert(new_state < RUN_STATE__MAX);
707 if (current_run_state == new_state) {
711 if (!runstate_valid_transitions[current_run_state][new_state]) {
712 error_report("invalid runstate transition: '%s' -> '%s'",
713 RunState_str(current_run_state),
714 RunState_str(new_state));
717 trace_runstate_set(new_state);
718 current_run_state = new_state;
721 int runstate_is_running(void)
723 return runstate_check(RUN_STATE_RUNNING);
726 bool runstate_needs_reset(void)
728 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
729 runstate_check(RUN_STATE_SHUTDOWN);
732 StatusInfo *qmp_query_status(Error **errp)
734 StatusInfo *info = g_malloc0(sizeof(*info));
736 info->running = runstate_is_running();
737 info->singlestep = singlestep;
738 info->status = current_run_state;
743 bool qemu_vmstop_requested(RunState *r)
745 qemu_mutex_lock(&vmstop_lock);
746 *r = vmstop_requested;
747 vmstop_requested = RUN_STATE__MAX;
748 qemu_mutex_unlock(&vmstop_lock);
749 return *r < RUN_STATE__MAX;
752 void qemu_system_vmstop_request_prepare(void)
754 qemu_mutex_lock(&vmstop_lock);
757 void qemu_system_vmstop_request(RunState state)
759 vmstop_requested = state;
760 qemu_mutex_unlock(&vmstop_lock);
764 /***********************************************************/
765 /* real time host monotonic timer */
767 static time_t qemu_time(void)
769 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
772 /***********************************************************/
773 /* host time/date access */
774 void qemu_get_timedate(struct tm *tm, int offset)
776 time_t ti = qemu_time();
779 if (rtc_date_offset == -1) {
783 localtime_r(&ti, tm);
785 ti -= rtc_date_offset;
790 int qemu_timedate_diff(struct tm *tm)
794 if (rtc_date_offset == -1)
796 seconds = mktimegm(tm);
799 tmp.tm_isdst = -1; /* use timezone to figure it out */
800 seconds = mktime(&tmp);
803 seconds = mktimegm(tm) + rtc_date_offset;
805 return seconds - qemu_time();
808 static void configure_rtc_date_offset(const char *startdate, int legacy)
810 time_t rtc_start_date;
813 if (!strcmp(startdate, "now") && legacy) {
814 rtc_date_offset = -1;
816 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
824 } else if (sscanf(startdate, "%d-%d-%d",
836 rtc_start_date = mktimegm(&tm);
837 if (rtc_start_date == -1) {
839 error_report("invalid date format");
840 error_printf("valid formats: "
841 "'2006-06-17T16:01:21' or '2006-06-17'\n");
844 rtc_date_offset = qemu_time() - rtc_start_date;
848 static void configure_rtc(QemuOpts *opts)
852 value = qemu_opt_get(opts, "base");
854 if (!strcmp(value, "utc")) {
856 } else if (!strcmp(value, "localtime")) {
857 Error *blocker = NULL;
859 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
860 "-rtc base=localtime");
861 replay_add_blocker(blocker);
863 configure_rtc_date_offset(value, 0);
866 value = qemu_opt_get(opts, "clock");
868 if (!strcmp(value, "host")) {
869 rtc_clock = QEMU_CLOCK_HOST;
870 } else if (!strcmp(value, "rt")) {
871 rtc_clock = QEMU_CLOCK_REALTIME;
872 } else if (!strcmp(value, "vm")) {
873 rtc_clock = QEMU_CLOCK_VIRTUAL;
875 error_report("invalid option value '%s'", value);
879 value = qemu_opt_get(opts, "driftfix");
881 if (!strcmp(value, "slew")) {
882 static GlobalProperty slew_lost_ticks = {
883 .driver = "mc146818rtc",
884 .property = "lost_tick_policy",
888 qdev_prop_register_global(&slew_lost_ticks);
889 } else if (!strcmp(value, "none")) {
890 /* discard is default */
892 error_report("invalid option value '%s'", value);
898 /***********************************************************/
899 /* Bluetooth support */
902 static struct HCIInfo *hci_table[MAX_NICS];
904 struct HCIInfo *qemu_next_hci(void)
906 if (cur_hci == nb_hcis)
909 return hci_table[cur_hci++];
912 static int bt_hci_parse(const char *str)
917 if (nb_hcis >= MAX_NICS) {
918 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
931 bdaddr.b[5] = 0x56 + nb_hcis;
932 hci->bdaddr_set(hci, bdaddr.b);
934 hci_table[nb_hcis++] = hci;
939 static void bt_vhci_add(int vlan_id)
941 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
944 warn_report("adding a VHCI to an empty scatternet %i",
947 bt_vhci_init(bt_new_hci(vlan));
950 static struct bt_device_s *bt_device_add(const char *opt)
952 struct bt_scatternet_s *vlan;
954 char *endp = strstr(opt, ",vlan=");
955 int len = (endp ? endp - opt : strlen(opt)) + 1;
958 pstrcpy(devname, MIN(sizeof(devname), len), opt);
961 vlan_id = strtol(endp + 6, &endp, 0);
963 error_report("unrecognised bluetooth vlan Id");
968 vlan = qemu_find_bt_vlan(vlan_id);
971 warn_report("adding a slave device to an empty scatternet %i",
974 if (!strcmp(devname, "keyboard"))
975 return bt_keyboard_init(vlan);
977 error_report("unsupported bluetooth device '%s'", devname);
981 static int bt_parse(const char *opt)
983 const char *endp, *p;
986 if (strstart(opt, "hci", &endp)) {
987 if (!*endp || *endp == ',') {
989 if (!strstart(endp, ",vlan=", 0))
992 return bt_hci_parse(opt);
994 } else if (strstart(opt, "vhci", &endp)) {
995 if (!*endp || *endp == ',') {
997 if (strstart(endp, ",vlan=", &p)) {
998 vlan = strtol(p, (char **) &endp, 0);
1000 error_report("bad scatternet '%s'", p);
1004 error_report("bad parameter '%s'", endp + 1);
1013 } else if (strstart(opt, "device:", &endp))
1014 return !bt_device_add(endp);
1016 error_report("bad bluetooth parameter '%s'", opt);
1020 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1022 const char *proc_name;
1024 if (qemu_opt_get(opts, "debug-threads")) {
1025 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1027 qemu_name = qemu_opt_get(opts, "guest");
1029 proc_name = qemu_opt_get(opts, "process");
1031 os_set_proc_name(proc_name);
1037 bool defaults_enabled(void)
1039 return has_defaults;
1043 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1045 int fd, dupfd, flags;
1047 const char *fd_opaque = NULL;
1050 fd = qemu_opt_get_number(opts, "fd", -1);
1051 fdset_id = qemu_opt_get_number(opts, "set", -1);
1052 fd_opaque = qemu_opt_get(opts, "opaque");
1055 error_report("fd option is required and must be non-negative");
1059 if (fd <= STDERR_FILENO) {
1060 error_report("fd cannot be a standard I/O stream");
1065 * All fds inherited across exec() necessarily have FD_CLOEXEC
1066 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1068 flags = fcntl(fd, F_GETFD);
1069 if (flags == -1 || (flags & FD_CLOEXEC)) {
1070 error_report("fd is not valid or already in use");
1075 error_report("set option is required and must be non-negative");
1079 #ifdef F_DUPFD_CLOEXEC
1080 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1084 qemu_set_cloexec(dupfd);
1088 error_report("error duplicating fd: %s", strerror(errno));
1092 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1093 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1100 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1104 fd = qemu_opt_get_number(opts, "fd", -1);
1111 /***********************************************************/
1112 /* QEMU Block devices */
1114 #define HD_OPTS "media=disk"
1115 #define CDROM_OPTS "media=cdrom"
1117 #define PFLASH_OPTS ""
1121 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1123 BlockInterfaceType *block_default_type = opaque;
1125 return drive_new(opts, *block_default_type) == NULL;
1128 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1130 if (qemu_opt_get(opts, "snapshot") == NULL) {
1131 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1136 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1137 int index, const char *optstr)
1142 if (!enable || drive_get_by_index(type, index)) {
1146 opts = drive_add(type, index, NULL, optstr);
1148 drive_enable_snapshot(NULL, opts, NULL);
1151 dinfo = drive_new(opts, type);
1155 dinfo->is_default = true;
1159 static QemuOptsList qemu_smp_opts = {
1161 .implied_opt_name = "cpus",
1162 .merge_lists = true,
1163 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1167 .type = QEMU_OPT_NUMBER,
1170 .type = QEMU_OPT_NUMBER,
1173 .type = QEMU_OPT_NUMBER,
1176 .type = QEMU_OPT_NUMBER,
1179 .type = QEMU_OPT_NUMBER,
1181 { /*End of list */ }
1185 static void smp_parse(QemuOpts *opts)
1188 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1189 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1190 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1191 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1193 /* compute missing values, prefer sockets over cores over threads */
1194 if (cpus == 0 || sockets == 0) {
1195 sockets = sockets > 0 ? sockets : 1;
1196 cores = cores > 0 ? cores : 1;
1197 threads = threads > 0 ? threads : 1;
1199 cpus = cores * threads * sockets;
1201 } else if (cores == 0) {
1202 threads = threads > 0 ? threads : 1;
1203 cores = cpus / (sockets * threads);
1204 cores = cores > 0 ? cores : 1;
1205 } else if (threads == 0) {
1206 threads = cpus / (cores * sockets);
1207 threads = threads > 0 ? threads : 1;
1208 } else if (sockets * cores * threads < cpus) {
1209 error_report("cpu topology: "
1210 "sockets (%u) * cores (%u) * threads (%u) < "
1212 sockets, cores, threads, cpus);
1216 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1218 if (max_cpus < cpus) {
1219 error_report("maxcpus must be equal to or greater than smp");
1223 if (sockets * cores * threads > max_cpus) {
1224 error_report("cpu topology: "
1225 "sockets (%u) * cores (%u) * threads (%u) > "
1227 sockets, cores, threads, max_cpus);
1233 smp_threads = threads;
1237 Error *blocker = NULL;
1238 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1239 replay_add_blocker(blocker);
1243 static void realtime_init(void)
1246 if (os_mlock() < 0) {
1247 error_report("locking memory failed");
1254 static void configure_msg(QemuOpts *opts)
1256 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1259 /***********************************************************/
1262 typedef struct SemihostingConfig {
1264 SemihostingTarget target;
1267 const char *cmdline; /* concatenated argv */
1268 } SemihostingConfig;
1270 static SemihostingConfig semihosting;
1272 bool semihosting_enabled(void)
1274 return semihosting.enabled;
1277 SemihostingTarget semihosting_get_target(void)
1279 return semihosting.target;
1282 const char *semihosting_get_arg(int i)
1284 if (i >= semihosting.argc) {
1287 return semihosting.argv[i];
1290 int semihosting_get_argc(void)
1292 return semihosting.argc;
1295 const char *semihosting_get_cmdline(void)
1297 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1298 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1300 return semihosting.cmdline;
1303 static int add_semihosting_arg(void *opaque,
1304 const char *name, const char *val,
1307 SemihostingConfig *s = opaque;
1308 if (strcmp(name, "arg") == 0) {
1310 /* one extra element as g_strjoinv() expects NULL-terminated array */
1311 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1312 s->argv[s->argc - 1] = val;
1313 s->argv[s->argc] = NULL;
1318 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1319 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1324 add_semihosting_arg(&semihosting, "arg", file, NULL);
1326 /* split -append and initialize argv[1..n] */
1327 cmd_token = strtok(g_strdup(cmd), " ");
1329 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1330 cmd_token = strtok(NULL, " ");
1334 /* Now we still need this for compatibility with XEN. */
1335 bool has_igd_gfx_passthru;
1336 static void igd_gfx_passthru(void)
1338 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1341 /***********************************************************/
1344 static int usb_device_add(const char *devname)
1346 USBDevice *dev = NULL;
1348 if (!machine_usb(current_machine)) {
1352 dev = usbdevice_create(devname);
1359 static int usb_parse(const char *cmdline)
1362 r = usb_device_add(cmdline);
1364 error_report("could not add USB device '%s'", cmdline);
1369 /***********************************************************/
1370 /* machine registration */
1372 MachineState *current_machine;
1374 static MachineClass *find_machine(const char *name)
1376 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1377 MachineClass *mc = NULL;
1379 for (el = machines; el; el = el->next) {
1380 MachineClass *temp = el->data;
1382 if (!strcmp(temp->name, name)) {
1387 !strcmp(temp->alias, name)) {
1393 g_slist_free(machines);
1397 MachineClass *find_default_machine(void)
1399 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1400 MachineClass *mc = NULL;
1402 for (el = machines; el; el = el->next) {
1403 MachineClass *temp = el->data;
1405 if (temp->is_default) {
1411 g_slist_free(machines);
1415 MachineInfoList *qmp_query_machines(Error **errp)
1417 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1418 MachineInfoList *mach_list = NULL;
1420 for (el = machines; el; el = el->next) {
1421 MachineClass *mc = el->data;
1422 MachineInfoList *entry;
1425 info = g_malloc0(sizeof(*info));
1426 if (mc->is_default) {
1427 info->has_is_default = true;
1428 info->is_default = true;
1432 info->has_alias = true;
1433 info->alias = g_strdup(mc->alias);
1436 info->name = g_strdup(mc->name);
1437 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1438 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1440 entry = g_malloc0(sizeof(*entry));
1441 entry->value = info;
1442 entry->next = mach_list;
1446 g_slist_free(machines);
1450 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1452 ObjectProperty *prop;
1453 ObjectPropertyIterator iter;
1455 if (!qemu_opt_has_help_opt(opts)) {
1459 object_property_iter_init(&iter, OBJECT(machine));
1460 while ((prop = object_property_iter_next(&iter))) {
1465 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1466 prop->name, prop->type);
1467 if (prop->description) {
1468 error_printf(" (%s)\n", prop->description);
1477 /***********************************************************/
1478 /* main execution loop */
1480 struct vm_change_state_entry {
1481 VMChangeStateHandler *cb;
1483 QLIST_ENTRY (vm_change_state_entry) entries;
1486 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1488 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1491 VMChangeStateEntry *e;
1493 e = g_malloc0(sizeof (*e));
1497 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1501 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1503 QLIST_REMOVE (e, entries);
1507 void vm_state_notify(int running, RunState state)
1509 VMChangeStateEntry *e, *next;
1511 trace_vm_state_notify(running, state);
1513 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1514 e->cb(e->opaque, running, state);
1518 static ShutdownCause reset_requested;
1519 static ShutdownCause shutdown_requested;
1520 static int shutdown_signal;
1521 static pid_t shutdown_pid;
1522 static int powerdown_requested;
1523 static int debug_requested;
1524 static int suspend_requested;
1525 static bool preconfig_exit_requested = true;
1526 static WakeupReason wakeup_reason;
1527 static NotifierList powerdown_notifiers =
1528 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1529 static NotifierList suspend_notifiers =
1530 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1531 static NotifierList wakeup_notifiers =
1532 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1533 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1535 ShutdownCause qemu_shutdown_requested_get(void)
1537 return shutdown_requested;
1540 ShutdownCause qemu_reset_requested_get(void)
1542 return reset_requested;
1545 static int qemu_shutdown_requested(void)
1547 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1550 static void qemu_kill_report(void)
1552 if (!qtest_driver() && shutdown_signal) {
1553 if (shutdown_pid == 0) {
1554 /* This happens for eg ^C at the terminal, so it's worth
1555 * avoiding printing an odd message in that case.
1557 error_report("terminating on signal %d", shutdown_signal);
1559 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1561 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1562 shutdown_signal, shutdown_pid,
1563 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1564 g_free(shutdown_cmd);
1566 shutdown_signal = 0;
1570 static ShutdownCause qemu_reset_requested(void)
1572 ShutdownCause r = reset_requested;
1574 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1575 reset_requested = SHUTDOWN_CAUSE_NONE;
1578 return SHUTDOWN_CAUSE_NONE;
1581 static int qemu_suspend_requested(void)
1583 int r = suspend_requested;
1584 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1585 suspend_requested = 0;
1591 static WakeupReason qemu_wakeup_requested(void)
1593 return wakeup_reason;
1596 static int qemu_powerdown_requested(void)
1598 int r = powerdown_requested;
1599 powerdown_requested = 0;
1603 static int qemu_debug_requested(void)
1605 int r = debug_requested;
1606 debug_requested = 0;
1610 void qemu_exit_preconfig_request(void)
1612 preconfig_exit_requested = true;
1616 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1618 void qemu_system_reset(ShutdownCause reason)
1622 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1624 cpu_synchronize_all_states();
1626 if (mc && mc->reset) {
1629 qemu_devices_reset();
1632 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1635 cpu_synchronize_all_post_reset();
1638 void qemu_system_guest_panicked(GuestPanicInformation *info)
1640 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1643 current_cpu->crash_occurred = true;
1645 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1646 !!info, info, &error_abort);
1647 vm_stop(RUN_STATE_GUEST_PANICKED);
1649 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1650 !!info, info, &error_abort);
1651 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1655 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1656 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1657 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1658 info->u.hyper_v.arg1,
1659 info->u.hyper_v.arg2,
1660 info->u.hyper_v.arg3,
1661 info->u.hyper_v.arg4,
1662 info->u.hyper_v.arg5);
1663 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1664 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1665 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1667 S390CrashReason_str(info->u.s390.reason),
1668 info->u.s390.psw_mask,
1669 info->u.s390.psw_addr);
1671 qapi_free_GuestPanicInformation(info);
1675 void qemu_system_reset_request(ShutdownCause reason)
1678 shutdown_requested = reason;
1680 reset_requested = reason;
1683 qemu_notify_event();
1686 static void qemu_system_suspend(void)
1689 notifier_list_notify(&suspend_notifiers, NULL);
1690 runstate_set(RUN_STATE_SUSPENDED);
1691 qapi_event_send_suspend(&error_abort);
1694 void qemu_system_suspend_request(void)
1696 if (runstate_check(RUN_STATE_SUSPENDED)) {
1699 suspend_requested = 1;
1701 qemu_notify_event();
1704 void qemu_register_suspend_notifier(Notifier *notifier)
1706 notifier_list_add(&suspend_notifiers, notifier);
1709 void qemu_system_wakeup_request(WakeupReason reason)
1711 trace_system_wakeup_request(reason);
1713 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1716 if (!(wakeup_reason_mask & (1 << reason))) {
1719 runstate_set(RUN_STATE_RUNNING);
1720 wakeup_reason = reason;
1721 qemu_notify_event();
1724 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1727 wakeup_reason_mask |= (1 << reason);
1729 wakeup_reason_mask &= ~(1 << reason);
1733 void qemu_register_wakeup_notifier(Notifier *notifier)
1735 notifier_list_add(&wakeup_notifiers, notifier);
1738 void qemu_system_killed(int signal, pid_t pid)
1740 shutdown_signal = signal;
1744 /* Cannot call qemu_system_shutdown_request directly because
1745 * we are in a signal handler.
1747 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1748 qemu_notify_event();
1751 void qemu_system_shutdown_request(ShutdownCause reason)
1753 trace_qemu_system_shutdown_request(reason);
1754 replay_shutdown_request(reason);
1755 shutdown_requested = reason;
1756 qemu_notify_event();
1759 static void qemu_system_powerdown(void)
1761 qapi_event_send_powerdown(&error_abort);
1762 notifier_list_notify(&powerdown_notifiers, NULL);
1765 void qemu_system_powerdown_request(void)
1767 trace_qemu_system_powerdown_request();
1768 powerdown_requested = 1;
1769 qemu_notify_event();
1772 void qemu_register_powerdown_notifier(Notifier *notifier)
1774 notifier_list_add(&powerdown_notifiers, notifier);
1777 void qemu_system_debug_request(void)
1779 debug_requested = 1;
1780 qemu_notify_event();
1783 static bool main_loop_should_exit(void)
1786 ShutdownCause request;
1788 if (preconfig_exit_requested) {
1789 if (runstate_check(RUN_STATE_PRECONFIG)) {
1790 runstate_set(RUN_STATE_PRELAUNCH);
1792 preconfig_exit_requested = false;
1795 if (qemu_debug_requested()) {
1796 vm_stop(RUN_STATE_DEBUG);
1798 if (qemu_suspend_requested()) {
1799 qemu_system_suspend();
1801 request = qemu_shutdown_requested();
1804 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1807 vm_stop(RUN_STATE_SHUTDOWN);
1812 request = qemu_reset_requested();
1815 qemu_system_reset(request);
1817 if (!runstate_check(RUN_STATE_RUNNING) &&
1818 !runstate_check(RUN_STATE_INMIGRATE)) {
1819 runstate_set(RUN_STATE_PRELAUNCH);
1822 if (qemu_wakeup_requested()) {
1824 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1825 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1826 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1828 qapi_event_send_wakeup(&error_abort);
1830 if (qemu_powerdown_requested()) {
1831 qemu_system_powerdown();
1833 if (qemu_vmstop_requested(&r)) {
1839 static void main_loop(void)
1841 #ifdef CONFIG_PROFILER
1845 #ifdef CONFIG_PROFILER
1846 ti = profile_getclock();
1848 main_loop_wait(false);
1849 #ifdef CONFIG_PROFILER
1850 dev_time += profile_getclock() - ti;
1852 } while (!main_loop_should_exit());
1855 static void version(void)
1857 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1858 QEMU_COPYRIGHT "\n");
1861 static void help(int exitcode)
1864 printf("usage: %s [options] [disk_image]\n\n"
1865 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1866 error_get_progname());
1868 #define QEMU_OPTIONS_GENERATE_HELP
1869 #include "qemu-options-wrapper.h"
1871 printf("\nDuring emulation, the following keys are useful:\n"
1872 "ctrl-alt-f toggle full screen\n"
1873 "ctrl-alt-n switch to virtual console 'n'\n"
1874 "ctrl-alt toggle mouse and keyboard grab\n"
1876 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1878 QEMU_HELP_BOTTOM "\n");
1883 #define HAS_ARG 0x0001
1885 typedef struct QEMUOption {
1892 static const QEMUOption qemu_options[] = {
1893 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1894 #define QEMU_OPTIONS_GENERATE_OPTIONS
1895 #include "qemu-options-wrapper.h"
1899 typedef struct VGAInterfaceInfo {
1900 const char *opt_name; /* option name */
1901 const char *name; /* human-readable name */
1902 /* Class names indicating that support is available.
1903 * If no class is specified, the interface is always available */
1904 const char *class_names[2];
1907 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1913 .name = "standard VGA",
1914 .class_names = { "VGA", "isa-vga" },
1917 .opt_name = "cirrus",
1918 .name = "Cirrus VGA",
1919 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1922 .opt_name = "vmware",
1923 .name = "VMWare SVGA",
1924 .class_names = { "vmware-svga" },
1927 .opt_name = "virtio",
1928 .name = "Virtio VGA",
1929 .class_names = { "virtio-vga" },
1934 .class_names = { "qxl-vga" },
1938 .name = "TCX framebuffer",
1939 .class_names = { "SUNW,tcx" },
1943 .name = "CG3 framebuffer",
1944 .class_names = { "cgthree" },
1947 .opt_name = "xenfb",
1951 static bool vga_interface_available(VGAInterfaceType t)
1953 VGAInterfaceInfo *ti = &vga_interfaces[t];
1955 assert(t < VGA_TYPE_MAX);
1956 return !ti->class_names[0] ||
1957 object_class_by_name(ti->class_names[0]) ||
1958 object_class_by_name(ti->class_names[1]);
1961 static void select_vgahw(const char *p)
1966 assert(vga_interface_type == VGA_NONE);
1967 for (t = 0; t < VGA_TYPE_MAX; t++) {
1968 VGAInterfaceInfo *ti = &vga_interfaces[t];
1969 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1970 if (!vga_interface_available(t)) {
1971 error_report("%s not available", ti->name);
1974 vga_interface_type = t;
1978 if (t == VGA_TYPE_MAX) {
1980 error_report("unknown vga type: %s", p);
1984 const char *nextopt;
1986 if (strstart(opts, ",retrace=", &nextopt)) {
1988 if (strstart(opts, "dumb", &nextopt))
1989 vga_retrace_method = VGA_RETRACE_DUMB;
1990 else if (strstart(opts, "precise", &nextopt))
1991 vga_retrace_method = VGA_RETRACE_PRECISE;
1992 else goto invalid_vga;
1993 } else goto invalid_vga;
1998 static void parse_display_qapi(const char *optarg)
2001 DisplayOptions *opts;
2004 v = qobject_input_visitor_new_str(optarg, "type", &err);
2006 error_report_err(err);
2010 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2011 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2013 qapi_free_DisplayOptions(opts);
2017 static void parse_display(const char *p)
2021 if (strstart(p, "sdl", &opts)) {
2023 * sdl DisplayType needs hand-crafted parser instead of
2024 * parse_display_qapi() due to some options not in
2025 * DisplayOptions, specifically:
2027 * Already deprecated.
2028 * - ctrl_grab + alt_grab
2029 * Not clear yet what happens to them long-term. Should
2030 * replaced by something better or deprecated and dropped.
2032 dpy.type = DISPLAY_TYPE_SDL;
2034 const char *nextopt;
2036 if (strstart(opts, ",frame=", &nextopt)) {
2037 g_printerr("The frame= sdl option is deprecated, and will be\n"
2038 "removed in a future release.\n");
2040 if (strstart(opts, "on", &nextopt)) {
2042 } else if (strstart(opts, "off", &nextopt)) {
2045 goto invalid_sdl_args;
2047 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2049 if (strstart(opts, "on", &nextopt)) {
2051 } else if (strstart(opts, "off", &nextopt)) {
2054 goto invalid_sdl_args;
2056 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2058 if (strstart(opts, "on", &nextopt)) {
2060 } else if (strstart(opts, "off", &nextopt)) {
2063 goto invalid_sdl_args;
2065 } else if (strstart(opts, ",window_close=", &nextopt)) {
2067 dpy.has_window_close = true;
2068 if (strstart(opts, "on", &nextopt)) {
2069 dpy.window_close = true;
2070 } else if (strstart(opts, "off", &nextopt)) {
2071 dpy.window_close = false;
2073 goto invalid_sdl_args;
2075 } else if (strstart(opts, ",gl=", &nextopt)) {
2078 if (strstart(opts, "on", &nextopt)) {
2079 dpy.gl = DISPLAYGL_MODE_ON;
2080 } else if (strstart(opts, "core", &nextopt)) {
2081 dpy.gl = DISPLAYGL_MODE_CORE;
2082 } else if (strstart(opts, "es", &nextopt)) {
2083 dpy.gl = DISPLAYGL_MODE_ES;
2084 } else if (strstart(opts, "off", &nextopt)) {
2085 dpy.gl = DISPLAYGL_MODE_OFF;
2087 goto invalid_sdl_args;
2091 error_report("invalid SDL option string");
2096 } else if (strstart(p, "vnc", &opts)) {
2098 * vnc isn't a (local) DisplayType but a protocol for remote
2102 vnc_parse(opts + 1, &error_fatal);
2104 error_report("VNC requires a display argument vnc=<display>");
2108 parse_display_qapi(p);
2112 static int balloon_parse(const char *arg)
2116 warn_report("This option is deprecated. "
2117 "Use '--device virtio-balloon' to enable the balloon device.");
2119 if (strcmp(arg, "none") == 0) {
2123 if (!strncmp(arg, "virtio", 6)) {
2124 if (arg[6] == ',') {
2125 /* have params -> parse them */
2126 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2131 /* create empty opts */
2132 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2135 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2142 char *qemu_find_file(int type, const char *name)
2148 /* Try the name as a straight path first */
2149 if (access(name, R_OK) == 0) {
2150 trace_load_file(name, name);
2151 return g_strdup(name);
2155 case QEMU_FILE_TYPE_BIOS:
2158 case QEMU_FILE_TYPE_KEYMAP:
2159 subdir = "keymaps/";
2165 for (i = 0; i < data_dir_idx; i++) {
2166 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2167 if (access(buf, R_OK) == 0) {
2168 trace_load_file(name, buf);
2176 static void qemu_add_data_dir(const char *path)
2183 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2186 for (i = 0; i < data_dir_idx; i++) {
2187 if (strcmp(data_dir[i], path) == 0) {
2188 return; /* duplicate */
2191 data_dir[data_dir_idx++] = g_strdup(path);
2194 static inline bool nonempty_str(const char *str)
2199 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2203 const char *name, *file, *str;
2204 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2206 if (fw_cfg == NULL) {
2207 error_report("fw_cfg device not available");
2210 name = qemu_opt_get(opts, "name");
2211 file = qemu_opt_get(opts, "file");
2212 str = qemu_opt_get(opts, "string");
2214 /* we need name and either a file or the content string */
2215 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2216 error_report("invalid argument(s)");
2219 if (nonempty_str(file) && nonempty_str(str)) {
2220 error_report("file and string are mutually exclusive");
2223 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2224 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2227 if (strncmp(name, "opt/", 4) != 0) {
2228 warn_report("externally provided fw_cfg item names "
2229 "should be prefixed with \"opt/\"");
2231 if (nonempty_str(str)) {
2232 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2233 buf = g_memdup(str, size);
2235 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2236 error_report("can't load %s", file);
2240 /* For legacy, keep user files in a specific global order. */
2241 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2242 fw_cfg_add_file(fw_cfg, name, buf, size);
2243 fw_cfg_reset_order_override(fw_cfg);
2247 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2249 return qdev_device_help(opts);
2252 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2257 dev = qdev_device_add(opts, &err);
2259 error_report_err(err);
2262 object_unref(OBJECT(dev));
2266 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2268 Error *local_err = NULL;
2270 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2272 error_report_err(local_err);
2280 #ifdef CONFIG_VIRTFS
2281 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2283 return qemu_fsdev_add(opts);
2287 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2290 const char *chardev;
2294 mode = qemu_opt_get(opts, "mode");
2298 if (strcmp(mode, "readline") == 0) {
2299 flags = MONITOR_USE_READLINE;
2300 } else if (strcmp(mode, "control") == 0) {
2301 flags = MONITOR_USE_CONTROL;
2303 error_report("unknown monitor mode \"%s\"", mode);
2307 if (qemu_opt_get_bool(opts, "pretty", 0))
2308 flags |= MONITOR_USE_PRETTY;
2310 /* OOB is off by default */
2311 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2312 flags |= MONITOR_USE_OOB;
2315 chardev = qemu_opt_get(opts, "chardev");
2316 chr = qemu_chr_find(chardev);
2318 error_report("chardev \"%s\" not found", chardev);
2322 monitor_init(chr, flags);
2326 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2328 static int monitor_device_index = 0;
2333 if (strstart(optarg, "chardev:", &p)) {
2334 snprintf(label, sizeof(label), "%s", p);
2336 snprintf(label, sizeof(label), "compat_monitor%d",
2337 monitor_device_index);
2338 opts = qemu_chr_parse_compat(label, optarg);
2340 error_report("parse error: %s", optarg);
2345 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2346 qemu_opt_set(opts, "mode", mode, &error_abort);
2347 qemu_opt_set(opts, "chardev", label, &error_abort);
2348 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2349 monitor_device_index++;
2352 struct device_config {
2354 DEV_USB, /* -usbdevice */
2356 DEV_SERIAL, /* -serial */
2357 DEV_PARALLEL, /* -parallel */
2358 DEV_VIRTCON, /* -virtioconsole */
2359 DEV_DEBUGCON, /* -debugcon */
2360 DEV_GDB, /* -gdb, -s */
2361 DEV_SCLP, /* s390 sclp */
2363 const char *cmdline;
2365 QTAILQ_ENTRY(device_config) next;
2368 static QTAILQ_HEAD(, device_config) device_configs =
2369 QTAILQ_HEAD_INITIALIZER(device_configs);
2371 static void add_device_config(int type, const char *cmdline)
2373 struct device_config *conf;
2375 conf = g_malloc0(sizeof(*conf));
2377 conf->cmdline = cmdline;
2378 loc_save(&conf->loc);
2379 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2382 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2384 struct device_config *conf;
2387 QTAILQ_FOREACH(conf, &device_configs, next) {
2388 if (conf->type != type)
2390 loc_push_restore(&conf->loc);
2391 rc = func(conf->cmdline);
2392 loc_pop(&conf->loc);
2400 static int serial_parse(const char *devname)
2402 int index = num_serial_hds;
2405 if (strcmp(devname, "none") == 0)
2407 snprintf(label, sizeof(label), "serial%d", index);
2408 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2410 serial_hds[index] = qemu_chr_new(label, devname);
2411 if (!serial_hds[index]) {
2412 error_report("could not connect serial device"
2413 " to character backend '%s'", devname);
2420 Chardev *serial_hd(int i)
2423 if (i < num_serial_hds) {
2424 return serial_hds[i];
2429 int serial_max_hds(void)
2431 return num_serial_hds;
2434 static int parallel_parse(const char *devname)
2436 static int index = 0;
2439 if (strcmp(devname, "none") == 0)
2441 if (index == MAX_PARALLEL_PORTS) {
2442 error_report("too many parallel ports");
2445 snprintf(label, sizeof(label), "parallel%d", index);
2446 parallel_hds[index] = qemu_chr_new(label, devname);
2447 if (!parallel_hds[index]) {
2448 error_report("could not connect parallel device"
2449 " to character backend '%s'", devname);
2456 static int virtcon_parse(const char *devname)
2458 QemuOptsList *device = qemu_find_opts("device");
2459 static int index = 0;
2461 QemuOpts *bus_opts, *dev_opts;
2463 if (strcmp(devname, "none") == 0)
2465 if (index == MAX_VIRTIO_CONSOLES) {
2466 error_report("too many virtio consoles");
2470 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2471 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2473 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2474 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2476 snprintf(label, sizeof(label), "virtcon%d", index);
2477 virtcon_hds[index] = qemu_chr_new(label, devname);
2478 if (!virtcon_hds[index]) {
2479 error_report("could not connect virtio console"
2480 " to character backend '%s'", devname);
2483 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2489 static int debugcon_parse(const char *devname)
2493 if (!qemu_chr_new("debugcon", devname)) {
2496 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2498 error_report("already have a debugcon device");
2501 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2502 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2506 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2508 const MachineClass *mc1 = a, *mc2 = b;
2511 if (mc1->family == NULL) {
2512 if (mc2->family == NULL) {
2513 /* Compare standalone machine types against each other; they sort
2514 * in increasing order.
2516 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2517 object_class_get_name(OBJECT_CLASS(mc2)));
2520 /* Standalone machine types sort after families. */
2524 if (mc2->family == NULL) {
2525 /* Families sort before standalone machine types. */
2529 /* Families sort between each other alphabetically increasingly. */
2530 res = strcmp(mc1->family, mc2->family);
2535 /* Within the same family, machine types sort in decreasing order. */
2536 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2537 object_class_get_name(OBJECT_CLASS(mc1)));
2540 static MachineClass *machine_parse(const char *name)
2542 MachineClass *mc = NULL;
2543 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2546 mc = find_machine(name);
2549 g_slist_free(machines);
2552 if (name && !is_help_option(name)) {
2553 error_report("unsupported machine type");
2554 error_printf("Use -machine help to list supported machines\n");
2556 printf("Supported machines are:\n");
2557 machines = g_slist_sort(machines, machine_class_cmp);
2558 for (el = machines; el; el = el->next) {
2559 MachineClass *mc = el->data;
2561 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2563 printf("%-20s %s%s\n", mc->name, mc->desc,
2564 mc->is_default ? " (default)" : "");
2568 g_slist_free(machines);
2569 exit(!name || !is_help_option(name));
2572 void qemu_add_exit_notifier(Notifier *notify)
2574 notifier_list_add(&exit_notifiers, notify);
2577 void qemu_remove_exit_notifier(Notifier *notify)
2579 notifier_remove(notify);
2582 static void qemu_run_exit_notifiers(void)
2584 notifier_list_notify(&exit_notifiers, NULL);
2587 bool machine_init_done;
2589 void qemu_add_machine_init_done_notifier(Notifier *notify)
2591 notifier_list_add(&machine_init_done_notifiers, notify);
2592 if (machine_init_done) {
2593 notify->notify(notify, NULL);
2597 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2599 notifier_remove(notify);
2602 static void qemu_run_machine_init_done_notifiers(void)
2604 machine_init_done = true;
2605 notifier_list_notify(&machine_init_done_notifiers, NULL);
2608 static const QEMUOption *lookup_opt(int argc, char **argv,
2609 const char **poptarg, int *poptind)
2611 const QEMUOption *popt;
2612 int optind = *poptind;
2613 char *r = argv[optind];
2616 loc_set_cmdline(argv, optind, 1);
2618 /* Treat --foo the same as -foo. */
2621 popt = qemu_options;
2624 error_report("invalid option");
2627 if (!strcmp(popt->name, r + 1))
2631 if (popt->flags & HAS_ARG) {
2632 if (optind >= argc) {
2633 error_report("requires an argument");
2636 optarg = argv[optind++];
2637 loc_set_cmdline(argv, optind - 2, 2);
2648 static MachineClass *select_machine(void)
2650 MachineClass *machine_class = find_default_machine();
2655 loc_push_none(&loc);
2657 opts = qemu_get_machine_opts();
2658 qemu_opts_loc_restore(opts);
2660 optarg = qemu_opt_get(opts, "type");
2662 machine_class = machine_parse(optarg);
2665 if (!machine_class) {
2666 error_report("No machine specified, and there is no default");
2667 error_printf("Use -machine help to list supported machines\n");
2672 return machine_class;
2675 static int machine_set_property(void *opaque,
2676 const char *name, const char *value,
2679 Object *obj = OBJECT(opaque);
2680 Error *local_err = NULL;
2683 if (strcmp(name, "type") == 0) {
2687 qom_name = g_strdup(name);
2688 for (p = qom_name; *p; p++) {
2694 object_property_parse(obj, value, qom_name, &local_err);
2698 error_report_err(local_err);
2707 * Initial object creation happens before all other
2708 * QEMU data types are created. The majority of objects
2709 * can be created at this point. The rng-egd object
2710 * cannot be created here, as it depends on the chardev
2713 static bool object_create_initial(const char *type)
2715 if (g_str_equal(type, "rng-egd") ||
2716 g_str_has_prefix(type, "pr-manager-")) {
2720 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2721 if (g_str_equal(type, "cryptodev-vhost-user")) {
2727 * return false for concrete netfilters since
2728 * they depend on netdevs already existing
2730 if (g_str_equal(type, "filter-buffer") ||
2731 g_str_equal(type, "filter-dump") ||
2732 g_str_equal(type, "filter-mirror") ||
2733 g_str_equal(type, "filter-redirector") ||
2734 g_str_equal(type, "colo-compare") ||
2735 g_str_equal(type, "filter-rewriter") ||
2736 g_str_equal(type, "filter-replay")) {
2740 /* Memory allocation by backends needs to be done
2741 * after configure_accelerator() (due to the tcg_enabled()
2742 * checks at memory_region_init_*()).
2744 * Also, allocation of large amounts of memory may delay
2745 * chardev initialization for too long, and trigger timeouts
2746 * on software that waits for a monitor socket to be created
2749 if (g_str_has_prefix(type, "memory-backend-")) {
2758 * The remainder of object creation happens after the
2759 * creation of chardev, fsdev, net clients and device data types.
2761 static bool object_create_delayed(const char *type)
2763 return !object_create_initial(type);
2767 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2771 const char *mem_str;
2772 const ram_addr_t default_ram_size = mc->default_ram_size;
2773 QemuOpts *opts = qemu_find_opts_singleton("memory");
2776 loc_push_none(&loc);
2777 qemu_opts_loc_restore(opts);
2780 mem_str = qemu_opt_get(opts, "size");
2783 error_report("missing 'size' option value");
2787 sz = qemu_opt_get_size(opts, "size", ram_size);
2789 /* Fix up legacy suffix-less format */
2790 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2791 uint64_t overflow_check = sz;
2794 if ((sz >> 20) != overflow_check) {
2795 error_report("too large 'size' option value");
2801 /* backward compatibility behaviour for case "-m 0" */
2803 sz = default_ram_size;
2806 sz = QEMU_ALIGN_UP(sz, 8192);
2808 if (ram_size != sz) {
2809 error_report("ram size too large");
2813 /* store value for the future use */
2814 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2815 *maxram_size = ram_size;
2817 if (qemu_opt_get(opts, "maxmem")) {
2820 sz = qemu_opt_get_size(opts, "maxmem", 0);
2821 slots = qemu_opt_get_number(opts, "slots", 0);
2822 if (sz < ram_size) {
2823 error_report("invalid value of -m option maxmem: "
2824 "maximum memory size (0x%" PRIx64 ") must be at least "
2825 "the initial memory size (0x" RAM_ADDR_FMT ")",
2828 } else if (slots && sz == ram_size) {
2829 error_report("invalid value of -m option maxmem: "
2830 "memory slots were specified but maximum memory size "
2831 "(0x%" PRIx64 ") is equal to the initial memory size "
2832 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2838 } else if (qemu_opt_get(opts, "slots")) {
2839 error_report("invalid -m option value: missing 'maxmem' option");
2846 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2850 g = g_malloc0(sizeof(*g));
2851 g->driver = qemu_opt_get(opts, "driver");
2852 g->property = qemu_opt_get(opts, "property");
2853 g->value = qemu_opt_get(opts, "value");
2854 g->user_provided = true;
2855 g->errp = &error_fatal;
2856 qdev_prop_register_global(g);
2860 static int qemu_read_default_config_file(void)
2864 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2865 if (ret < 0 && ret != -ENOENT) {
2872 static void user_register_global_props(void)
2874 qemu_opts_foreach(qemu_find_opts("global"),
2875 global_init_func, NULL, NULL);
2879 * Note: we should see that these properties are actually having a
2880 * priority: accel < machine < user. This means e.g. when user
2881 * specifies something in "-global", it'll always be used with highest
2882 * priority than either machine/accelerator compat properties.
2884 static void register_global_properties(MachineState *ms)
2886 accel_register_compat_props(ms->accelerator);
2887 machine_register_compat_props(ms);
2888 user_register_global_props();
2891 int main(int argc, char **argv, char **envp)
2894 int snapshot, linux_boot;
2895 const char *initrd_filename;
2896 const char *kernel_filename, *kernel_cmdline;
2897 const char *boot_order = NULL;
2898 const char *boot_once = NULL;
2900 QemuOpts *opts, *machine_opts;
2901 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2902 QemuOptsList *olist;
2905 const char *loadvm = NULL;
2906 MachineClass *machine_class;
2907 const char *cpu_model;
2908 const char *vga_model = NULL;
2909 const char *qtest_chrdev = NULL;
2910 const char *qtest_log = NULL;
2911 const char *pid_file = NULL;
2912 const char *incoming = NULL;
2913 bool userconfig = true;
2914 bool nographic = false;
2915 int display_remote = 0;
2916 const char *log_mask = NULL;
2917 const char *log_file = NULL;
2918 char *trace_file = NULL;
2919 ram_addr_t maxram_size;
2920 uint64_t ram_slots = 0;
2921 FILE *vmstate_dump_file = NULL;
2922 Error *main_loop_err = NULL;
2924 bool list_data_dirs = false;
2926 typedef struct BlockdevOptions_queue {
2927 BlockdevOptions *bdo;
2929 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2930 } BlockdevOptions_queue;
2931 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2932 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2934 module_call_init(MODULE_INIT_TRACE);
2936 qemu_init_cpu_list();
2937 qemu_init_cpu_loop();
2939 qemu_mutex_lock_iothread();
2941 atexit(qemu_run_exit_notifiers);
2942 error_set_progname(argv[0]);
2943 qemu_init_exec_dir(argv[0]);
2945 module_call_init(MODULE_INIT_QOM);
2947 qemu_add_opts(&qemu_drive_opts);
2948 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2949 qemu_add_drive_opts(&qemu_common_drive_opts);
2950 qemu_add_drive_opts(&qemu_drive_opts);
2951 qemu_add_drive_opts(&bdrv_runtime_opts);
2952 qemu_add_opts(&qemu_chardev_opts);
2953 qemu_add_opts(&qemu_device_opts);
2954 qemu_add_opts(&qemu_netdev_opts);
2955 qemu_add_opts(&qemu_nic_opts);
2956 qemu_add_opts(&qemu_net_opts);
2957 qemu_add_opts(&qemu_rtc_opts);
2958 qemu_add_opts(&qemu_global_opts);
2959 qemu_add_opts(&qemu_mon_opts);
2960 qemu_add_opts(&qemu_trace_opts);
2961 qemu_add_opts(&qemu_option_rom_opts);
2962 qemu_add_opts(&qemu_machine_opts);
2963 qemu_add_opts(&qemu_accel_opts);
2964 qemu_add_opts(&qemu_mem_opts);
2965 qemu_add_opts(&qemu_smp_opts);
2966 qemu_add_opts(&qemu_boot_opts);
2967 qemu_add_opts(&qemu_add_fd_opts);
2968 qemu_add_opts(&qemu_object_opts);
2969 qemu_add_opts(&qemu_tpmdev_opts);
2970 qemu_add_opts(&qemu_realtime_opts);
2971 qemu_add_opts(&qemu_msg_opts);
2972 qemu_add_opts(&qemu_name_opts);
2973 qemu_add_opts(&qemu_numa_opts);
2974 qemu_add_opts(&qemu_icount_opts);
2975 qemu_add_opts(&qemu_semihosting_config_opts);
2976 qemu_add_opts(&qemu_fw_cfg_opts);
2977 module_call_init(MODULE_INIT_OPTS);
2980 postcopy_infrastructure_init();
2982 if (qcrypto_init(&err) < 0) {
2983 error_reportf_err(err, "cannot initialize crypto: ");
2986 rtc_clock = QEMU_CLOCK_HOST;
2988 QLIST_INIT (&vm_change_state_head);
2989 os_setup_early_signal_handling();
2996 bdrv_init_with_whitelist();
3000 /* first pass of option parsing */
3002 while (optind < argc) {
3003 if (argv[optind][0] != '-') {
3007 const QEMUOption *popt;
3009 popt = lookup_opt(argc, argv, &optarg, &optind);
3010 switch (popt->index) {
3011 case QEMU_OPTION_nodefconfig:
3012 case QEMU_OPTION_nouserconfig:
3020 if (qemu_read_default_config_file() < 0) {
3025 /* second pass of option parsing */
3030 if (argv[optind][0] != '-') {
3031 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3033 const QEMUOption *popt;
3035 popt = lookup_opt(argc, argv, &optarg, &optind);
3036 if (!(popt->arch_mask & arch_type)) {
3037 error_report("Option not supported for this target");
3040 switch(popt->index) {
3041 case QEMU_OPTION_cpu:
3042 /* hw initialization will check this */
3045 case QEMU_OPTION_hda:
3046 case QEMU_OPTION_hdb:
3047 case QEMU_OPTION_hdc:
3048 case QEMU_OPTION_hdd:
3049 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3052 case QEMU_OPTION_blockdev:
3055 BlockdevOptions_queue *bdo;
3057 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3059 error_report_err(err);
3063 bdo = g_new(BlockdevOptions_queue, 1);
3064 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3067 loc_save(&bdo->loc);
3068 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3071 case QEMU_OPTION_drive:
3072 if (drive_def(optarg) == NULL) {
3076 case QEMU_OPTION_set:
3077 if (qemu_set_option(optarg) != 0)
3080 case QEMU_OPTION_global:
3081 if (qemu_global_option(optarg) != 0)
3084 case QEMU_OPTION_mtdblock:
3085 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3087 case QEMU_OPTION_sd:
3088 drive_add(IF_SD, -1, optarg, SD_OPTS);
3090 case QEMU_OPTION_pflash:
3091 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3093 case QEMU_OPTION_snapshot:
3096 case QEMU_OPTION_numa:
3097 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3103 case QEMU_OPTION_display:
3104 parse_display(optarg);
3106 case QEMU_OPTION_nographic:
3107 olist = qemu_find_opts("machine");
3108 qemu_opts_parse_noisily(olist, "graphics=off", false);
3110 dpy.type = DISPLAY_TYPE_NONE;
3112 case QEMU_OPTION_curses:
3113 #ifdef CONFIG_CURSES
3114 dpy.type = DISPLAY_TYPE_CURSES;
3116 error_report("curses support is disabled");
3120 case QEMU_OPTION_portrait:
3121 graphic_rotate = 90;
3123 case QEMU_OPTION_rotate:
3124 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3125 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3126 graphic_rotate != 180 && graphic_rotate != 270) {
3127 error_report("only 90, 180, 270 deg rotation is available");
3131 case QEMU_OPTION_kernel:
3132 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3135 case QEMU_OPTION_initrd:
3136 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3139 case QEMU_OPTION_append:
3140 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3143 case QEMU_OPTION_dtb:
3144 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3147 case QEMU_OPTION_cdrom:
3148 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3150 case QEMU_OPTION_boot:
3151 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3157 case QEMU_OPTION_fda:
3158 case QEMU_OPTION_fdb:
3159 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3162 case QEMU_OPTION_no_fd_bootchk:
3165 case QEMU_OPTION_netdev:
3167 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3171 case QEMU_OPTION_nic:
3173 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3177 case QEMU_OPTION_net:
3179 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3183 #ifdef CONFIG_LIBISCSI
3184 case QEMU_OPTION_iscsi:
3185 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3193 case QEMU_OPTION_tftp:
3194 error_report("The -tftp option is deprecated. "
3195 "Please use '-netdev user,tftp=...' instead.");
3196 legacy_tftp_prefix = optarg;
3198 case QEMU_OPTION_bootp:
3199 error_report("The -bootp option is deprecated. "
3200 "Please use '-netdev user,bootfile=...' instead.");
3201 legacy_bootp_filename = optarg;
3203 case QEMU_OPTION_redir:
3204 error_report("The -redir option is deprecated. "
3205 "Please use '-netdev user,hostfwd=...' instead.");
3206 if (net_slirp_redir(optarg) < 0)
3210 case QEMU_OPTION_bt:
3211 add_device_config(DEV_BT, optarg);
3213 case QEMU_OPTION_audio_help:
3217 case QEMU_OPTION_soundhw:
3218 select_soundhw (optarg);
3223 case QEMU_OPTION_version:
3228 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3235 case QEMU_OPTION_tpmdev:
3236 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3241 case QEMU_OPTION_mempath:
3244 case QEMU_OPTION_mem_prealloc:
3253 case QEMU_OPTION_DFILTER:
3254 qemu_set_dfilter_ranges(optarg, &error_fatal);
3257 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3259 case QEMU_OPTION_gdb:
3260 add_device_config(DEV_GDB, optarg);
3263 if (is_help_option(optarg)) {
3264 list_data_dirs = true;
3266 qemu_add_data_dir(optarg);
3269 case QEMU_OPTION_bios:
3270 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3273 case QEMU_OPTION_singlestep:
3280 keyboard_layout = optarg;
3282 case QEMU_OPTION_localtime:
3284 warn_report("This option is deprecated, "
3285 "use '-rtc base=localtime' instead.");
3287 case QEMU_OPTION_vga:
3296 w = strtol(p, (char **)&p, 10);
3299 error_report("invalid resolution or depth");
3305 h = strtol(p, (char **)&p, 10);
3310 depth = strtol(p, (char **)&p, 10);
3311 if (depth != 8 && depth != 15 && depth != 16 &&
3312 depth != 24 && depth != 32)
3314 } else if (*p == '\0') {
3315 depth = graphic_depth;
3322 graphic_depth = depth;
3325 case QEMU_OPTION_echr:
3328 term_escape_char = strtol(optarg, &r, 0);
3330 printf("Bad argument to echr\n");
3333 case QEMU_OPTION_monitor:
3334 default_monitor = 0;
3335 if (strncmp(optarg, "none", 4)) {
3336 monitor_parse(optarg, "readline", false);
3339 case QEMU_OPTION_qmp:
3340 monitor_parse(optarg, "control", false);
3341 default_monitor = 0;
3343 case QEMU_OPTION_qmp_pretty:
3344 monitor_parse(optarg, "control", true);
3345 default_monitor = 0;
3347 case QEMU_OPTION_mon:
3348 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3353 default_monitor = 0;
3355 case QEMU_OPTION_chardev:
3356 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3362 case QEMU_OPTION_fsdev:
3363 olist = qemu_find_opts("fsdev");
3365 error_report("fsdev support is disabled");
3368 opts = qemu_opts_parse_noisily(olist, optarg, true);
3373 case QEMU_OPTION_virtfs: {
3376 const char *writeout, *sock_fd, *socket, *path, *security_model;
3378 olist = qemu_find_opts("virtfs");
3380 error_report("virtfs support is disabled");
3383 opts = qemu_opts_parse_noisily(olist, optarg, true);
3388 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3389 qemu_opt_get(opts, "mount_tag") == NULL) {
3390 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3393 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3394 qemu_opts_id(opts) ?:
3395 qemu_opt_get(opts, "mount_tag"),
3398 error_report("duplicate or invalid fsdev id: %s",
3399 qemu_opt_get(opts, "mount_tag"));
3403 writeout = qemu_opt_get(opts, "writeout");
3405 #ifdef CONFIG_SYNC_FILE_RANGE
3406 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3408 error_report("writeout=immediate not supported "
3409 "on this platform");
3413 qemu_opt_set(fsdev, "fsdriver",
3414 qemu_opt_get(opts, "fsdriver"), &error_abort);
3415 path = qemu_opt_get(opts, "path");
3417 qemu_opt_set(fsdev, "path", path, &error_abort);
3419 security_model = qemu_opt_get(opts, "security_model");
3420 if (security_model) {
3421 qemu_opt_set(fsdev, "security_model", security_model,
3424 socket = qemu_opt_get(opts, "socket");
3426 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3428 sock_fd = qemu_opt_get(opts, "sock_fd");
3430 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3433 qemu_opt_set_bool(fsdev, "readonly",
3434 qemu_opt_get_bool(opts, "readonly", 0),
3436 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3438 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3439 qemu_opt_set(device, "fsdev",
3440 qemu_opts_id(fsdev), &error_abort);
3441 qemu_opt_set(device, "mount_tag",
3442 qemu_opt_get(opts, "mount_tag"), &error_abort);
3445 case QEMU_OPTION_virtfs_synth: {
3449 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3452 error_report("duplicate option: %s", "virtfs_synth");
3455 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3457 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3459 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3460 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3461 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3464 case QEMU_OPTION_serial:
3465 add_device_config(DEV_SERIAL, optarg);
3467 if (strncmp(optarg, "mon:", 4) == 0) {
3468 default_monitor = 0;
3471 case QEMU_OPTION_watchdog:
3473 error_report("only one watchdog option may be given");
3478 case QEMU_OPTION_watchdog_action:
3479 if (select_watchdog_action(optarg) == -1) {
3480 error_report("unknown -watchdog-action parameter");
3484 case QEMU_OPTION_virtiocon:
3485 warn_report("This option is deprecated, "
3486 "use '-device virtconsole' instead");
3487 add_device_config(DEV_VIRTCON, optarg);
3488 default_virtcon = 0;
3489 if (strncmp(optarg, "mon:", 4) == 0) {
3490 default_monitor = 0;
3493 case QEMU_OPTION_parallel:
3494 add_device_config(DEV_PARALLEL, optarg);
3495 default_parallel = 0;
3496 if (strncmp(optarg, "mon:", 4) == 0) {
3497 default_monitor = 0;
3500 case QEMU_OPTION_debugcon:
3501 add_device_config(DEV_DEBUGCON, optarg);
3503 case QEMU_OPTION_loadvm:
3506 case QEMU_OPTION_full_screen:
3507 dpy.has_full_screen = true;
3508 dpy.full_screen = true;
3510 case QEMU_OPTION_no_frame:
3511 g_printerr("The -no-frame switch is deprecated, and will be\n"
3512 "removed in a future release.\n");
3515 case QEMU_OPTION_alt_grab:
3518 case QEMU_OPTION_ctrl_grab:
3521 case QEMU_OPTION_no_quit:
3522 dpy.has_window_close = true;
3523 dpy.window_close = false;
3525 case QEMU_OPTION_sdl:
3527 dpy.type = DISPLAY_TYPE_SDL;
3530 error_report("SDL support is disabled");
3533 case QEMU_OPTION_pidfile:
3536 case QEMU_OPTION_win2k_hack:
3537 win2k_install_hack = 1;
3539 case QEMU_OPTION_rtc_td_hack: {
3540 static GlobalProperty slew_lost_ticks = {
3541 .driver = "mc146818rtc",
3542 .property = "lost_tick_policy",
3546 qdev_prop_register_global(&slew_lost_ticks);
3547 warn_report("This option is deprecated, "
3548 "use '-rtc driftfix=slew' instead.");
3551 case QEMU_OPTION_acpitable:
3552 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3557 acpi_table_add(opts, &error_fatal);
3559 case QEMU_OPTION_smbios:
3560 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3565 smbios_entry_add(opts, &error_fatal);
3567 case QEMU_OPTION_fwcfg:
3568 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3574 case QEMU_OPTION_preconfig:
3575 preconfig_exit_requested = false;
3577 case QEMU_OPTION_enable_kvm:
3578 olist = qemu_find_opts("machine");
3579 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3581 case QEMU_OPTION_enable_hax:
3582 olist = qemu_find_opts("machine");
3583 qemu_opts_parse_noisily(olist, "accel=hax", false);
3586 case QEMU_OPTION_machine:
3587 olist = qemu_find_opts("machine");
3588 opts = qemu_opts_parse_noisily(olist, optarg, true);
3593 case QEMU_OPTION_no_kvm:
3594 olist = qemu_find_opts("machine");
3595 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3597 case QEMU_OPTION_accel:
3598 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3600 optarg = qemu_opt_get(accel_opts, "accel");
3601 if (!optarg || is_help_option(optarg)) {
3602 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3605 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3606 false, &error_abort);
3607 qemu_opt_set(opts, "accel", optarg, &error_abort);
3609 case QEMU_OPTION_usb:
3610 olist = qemu_find_opts("machine");
3611 qemu_opts_parse_noisily(olist, "usb=on", false);
3613 case QEMU_OPTION_usbdevice:
3614 error_report("'-usbdevice' is deprecated, please use "
3615 "'-device usb-...' instead");
3616 olist = qemu_find_opts("machine");
3617 qemu_opts_parse_noisily(olist, "usb=on", false);
3618 add_device_config(DEV_USB, optarg);
3620 case QEMU_OPTION_device:
3621 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3626 case QEMU_OPTION_smp:
3627 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3632 case QEMU_OPTION_vnc:
3633 vnc_parse(optarg, &error_fatal);
3635 case QEMU_OPTION_no_acpi:
3638 case QEMU_OPTION_no_hpet:
3641 case QEMU_OPTION_balloon:
3642 if (balloon_parse(optarg) < 0) {
3643 error_report("unknown -balloon argument %s", optarg);
3647 case QEMU_OPTION_no_reboot:
3650 case QEMU_OPTION_no_shutdown:
3653 case QEMU_OPTION_show_cursor:
3656 case QEMU_OPTION_uuid:
3657 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3658 error_report("failed to parse UUID string: wrong format");
3661 qemu_uuid_set = true;
3663 case QEMU_OPTION_option_rom:
3664 if (nb_option_roms >= MAX_OPTION_ROMS) {
3665 error_report("too many option ROMs");
3668 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3673 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3674 option_rom[nb_option_roms].bootindex =
3675 qemu_opt_get_number(opts, "bootindex", -1);
3676 if (!option_rom[nb_option_roms].name) {
3677 error_report("Option ROM file is not specified");
3682 case QEMU_OPTION_semihosting:
3683 semihosting.enabled = true;
3684 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3686 case QEMU_OPTION_semihosting_config:
3687 semihosting.enabled = true;
3688 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3691 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3693 const char *target = qemu_opt_get(opts, "target");
3694 if (target != NULL) {
3695 if (strcmp("native", target) == 0) {
3696 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3697 } else if (strcmp("gdb", target) == 0) {
3698 semihosting.target = SEMIHOSTING_TARGET_GDB;
3699 } else if (strcmp("auto", target) == 0) {
3700 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3702 error_report("unsupported semihosting-config %s",
3707 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3709 /* Set semihosting argument count and vector */
3710 qemu_opt_foreach(opts, add_semihosting_arg,
3711 &semihosting, NULL);
3713 error_report("unsupported semihosting-config %s", optarg);
3717 case QEMU_OPTION_name:
3718 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3724 case QEMU_OPTION_prom_env:
3725 if (nb_prom_envs >= MAX_PROM_ENVS) {
3726 error_report("too many prom variables");
3729 prom_envs[nb_prom_envs] = optarg;
3732 case QEMU_OPTION_old_param:
3735 case QEMU_OPTION_clock:
3736 /* Clock options no longer exist. Keep this option for
3737 * backward compatibility.
3739 warn_report("This option is ignored and will be removed soon");
3741 case QEMU_OPTION_startdate:
3742 warn_report("This option is deprecated, use '-rtc base=' instead.");
3743 configure_rtc_date_offset(optarg, 1);
3745 case QEMU_OPTION_rtc:
3746 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3751 configure_rtc(opts);
3753 case QEMU_OPTION_tb_size:
3755 error_report("TCG is disabled");
3758 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3759 error_report("Invalid argument to -tb-size");
3763 case QEMU_OPTION_icount:
3764 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3770 case QEMU_OPTION_incoming:
3772 runstate_set(RUN_STATE_INMIGRATE);
3776 case QEMU_OPTION_only_migratable:
3778 * TODO: we can remove this option one day, and we
3781 * "-global migration.only-migratable=true"
3783 qemu_global_option("migration.only-migratable=true");
3785 case QEMU_OPTION_nodefaults:
3788 case QEMU_OPTION_xen_domid:
3789 if (!(xen_available())) {
3790 error_report("Option not supported for this target");
3793 xen_domid = atoi(optarg);
3795 case QEMU_OPTION_xen_create:
3796 if (!(xen_available())) {
3797 error_report("Option not supported for this target");
3800 xen_mode = XEN_CREATE;
3802 case QEMU_OPTION_xen_attach:
3803 if (!(xen_available())) {
3804 error_report("Option not supported for this target");
3807 xen_mode = XEN_ATTACH;
3809 case QEMU_OPTION_xen_domid_restrict:
3810 if (!(xen_available())) {
3811 error_report("Option not supported for this target");
3814 xen_domid_restrict = true;
3816 case QEMU_OPTION_trace:
3818 trace_file = trace_opt_parse(optarg);
3820 case QEMU_OPTION_readconfig:
3822 int ret = qemu_read_config_file(optarg);
3824 error_report("read config %s: %s", optarg,
3830 case QEMU_OPTION_spice:
3831 olist = qemu_find_opts("spice");
3833 error_report("spice support is disabled");
3836 opts = qemu_opts_parse_noisily(olist, optarg, false);
3842 case QEMU_OPTION_writeconfig:
3845 if (strcmp(optarg, "-") == 0) {
3848 fp = fopen(optarg, "w");
3850 error_report("open %s: %s", optarg,
3855 qemu_config_write(fp);
3861 case QEMU_OPTION_qtest:
3862 qtest_chrdev = optarg;
3864 case QEMU_OPTION_qtest_log:
3867 case QEMU_OPTION_sandbox:
3868 #ifdef CONFIG_SECCOMP
3869 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3875 error_report("-sandbox support is not enabled "
3876 "in this QEMU binary");
3880 case QEMU_OPTION_add_fd:
3882 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3888 error_report("File descriptor passing is disabled on this "
3893 case QEMU_OPTION_object:
3894 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3900 case QEMU_OPTION_realtime:
3901 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3906 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3908 case QEMU_OPTION_msg:
3909 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3914 configure_msg(opts);
3916 case QEMU_OPTION_dump_vmstate:
3917 if (vmstate_dump_file) {
3918 error_report("only one '-dump-vmstate' "
3919 "option may be given");
3922 vmstate_dump_file = fopen(optarg, "w");
3923 if (vmstate_dump_file == NULL) {
3924 error_report("open %s: %s", optarg, strerror(errno));
3928 case QEMU_OPTION_nodefconfig:
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 /* According to documentation and historically, -nographic redirects
4137 * serial port, parallel port and monitor to stdio, which does not work
4138 * with -daemonize. We can redirect these to null instead, but since
4139 * -nographic is legacy, let's just error out.
4140 * We disallow -nographic only if all other ports are not redirected
4141 * explicitly, to not break existing legacy setups which uses
4142 * -nographic _and_ redirects all ports explicitly - this is valid
4143 * usage, -nographic is just a no-op in this case.
4146 && (default_parallel || default_serial
4147 || default_monitor || default_virtcon)) {
4148 error_report("-nographic cannot be used with -daemonize");
4151 #ifdef CONFIG_CURSES
4152 if (dpy.type == DISPLAY_TYPE_CURSES) {
4153 error_report("curses display cannot be used with -daemonize");
4160 if (default_parallel)
4161 add_device_config(DEV_PARALLEL, "null");
4162 if (default_serial && default_monitor) {
4163 add_device_config(DEV_SERIAL, "mon:stdio");
4164 } else if (default_virtcon && default_monitor) {
4165 add_device_config(DEV_VIRTCON, "mon:stdio");
4168 add_device_config(DEV_SERIAL, "stdio");
4169 if (default_virtcon)
4170 add_device_config(DEV_VIRTCON, "stdio");
4171 if (default_monitor)
4172 monitor_parse("stdio", "readline", false);
4176 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4177 if (default_parallel)
4178 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4179 if (default_monitor)
4180 monitor_parse("vc:80Cx24C", "readline", false);
4181 if (default_virtcon)
4182 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4185 #if defined(CONFIG_VNC)
4186 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4190 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4191 if (!qemu_display_find_default(&dpy)) {
4192 dpy.type = DISPLAY_TYPE_NONE;
4193 #if defined(CONFIG_VNC)
4194 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4198 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4199 dpy.type = DISPLAY_TYPE_NONE;
4202 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4203 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4204 "for SDL, ignoring option");
4206 if (dpy.has_window_close &&
4207 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4208 error_report("-no-quit is only valid for GTK and SDL, "
4212 qemu_display_early_init(&dpy);
4213 qemu_console_early_init();
4215 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4216 #if defined(CONFIG_OPENGL)
4217 error_report("OpenGL is not supported by the display");
4219 error_report("OpenGL support is disabled");
4227 if (qemu_opts_foreach(qemu_find_opts("object"),
4228 user_creatable_add_opts_foreach,
4229 object_create_initial, NULL)) {
4233 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4234 chardev_init_func, NULL, NULL)) {
4238 #ifdef CONFIG_VIRTFS
4239 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4240 fsdev_init_func, NULL, NULL)) {
4245 if (qemu_opts_foreach(qemu_find_opts("device"),
4246 device_help_func, NULL, NULL)) {
4250 machine_opts = qemu_get_machine_opts();
4251 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4253 object_unref(OBJECT(current_machine));
4257 configure_accelerator(current_machine);
4260 * Register all the global properties, including accel properties,
4261 * machine properties, and user-specified ones.
4263 register_global_properties(current_machine);
4266 * Migration object can only be created after global properties
4267 * are applied correctly.
4269 migration_object_init();
4272 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4275 machine_opts = qemu_get_machine_opts();
4276 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4277 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4278 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4279 bios_name = qemu_opt_get(machine_opts, "firmware");
4281 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4283 boot_order = qemu_opt_get(opts, "order");
4285 validate_bootdevices(boot_order, &error_fatal);
4288 boot_once = qemu_opt_get(opts, "once");
4290 validate_bootdevices(boot_once, &error_fatal);
4293 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4294 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4298 boot_order = machine_class->default_boot_order;
4301 if (!kernel_cmdline) {
4302 kernel_cmdline = "";
4303 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4306 linux_boot = (kernel_filename != NULL);
4308 if (!linux_boot && *kernel_cmdline != '\0') {
4309 error_report("-append only allowed with -kernel option");
4313 if (!linux_boot && initrd_filename != NULL) {
4314 error_report("-initrd only allowed with -kernel option");
4318 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4319 /* fall back to the -kernel/-append */
4320 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4323 os_set_line_buffering();
4325 /* spice needs the timers to be initialized by this point */
4330 if (!tcg_enabled()) {
4331 error_report("-icount is not allowed with hardware virtualization");
4334 configure_icount(icount_opts, &error_abort);
4335 qemu_opts_del(icount_opts);
4338 if (tcg_enabled()) {
4339 qemu_tcg_configure(accel_opts, &error_fatal);
4343 QemuOptsList *net = qemu_find_opts("net");
4344 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4346 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4352 if (net_init_clients(&err) < 0) {
4353 error_report_err(err);
4357 if (qemu_opts_foreach(qemu_find_opts("object"),
4358 user_creatable_add_opts_foreach,
4359 object_create_delayed, NULL)) {
4363 if (tpm_init() < 0) {
4367 /* init the bluetooth world */
4368 if (foreach_device_config(DEV_BT, bt_parse))
4371 if (!xen_enabled()) {
4372 /* On 32-bit hosts, QEMU is limited by virtual address space */
4373 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4374 error_report("at most 2047 MB RAM can be simulated");
4381 dirty_bitmap_mig_init();
4383 /* If the currently selected machine wishes to override the units-per-bus
4384 * property of its default HBA interface type, do so now. */
4385 if (machine_class->units_per_default_bus) {
4386 override_max_devs(machine_class->block_default_type,
4387 machine_class->units_per_default_bus);
4390 /* open the virtual block devices */
4391 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4392 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4394 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4395 loc_push_restore(&bdo->loc);
4396 qmp_blockdev_add(bdo->bdo, &error_fatal);
4398 qapi_free_BlockdevOptions(bdo->bdo);
4401 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4402 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4405 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4406 &machine_class->block_default_type, NULL)) {
4410 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4412 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4413 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4416 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4417 * depends on configure_accelerator() above.
4419 monitor_init_globals();
4421 if (qemu_opts_foreach(qemu_find_opts("mon"),
4422 mon_init_func, NULL, NULL)) {
4426 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4428 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4430 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4432 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4435 /* If no default VGA is requested, the default is "none". */
4437 if (machine_class->default_display) {
4438 vga_model = machine_class->default_display;
4439 } else if (vga_interface_available(VGA_CIRRUS)) {
4440 vga_model = "cirrus";
4441 } else if (vga_interface_available(VGA_STD)) {
4446 select_vgahw(vga_model);
4450 i = select_watchdog(watchdog);
4452 exit (i == 1 ? 1 : 0);
4455 /* This checkpoint is required by replay to separate prior clock
4456 reading from the other reads, because timer polling functions query
4457 clock values from the log. */
4458 replay_checkpoint(CHECKPOINT_INIT);
4459 qdev_machine_init();
4461 current_machine->ram_size = ram_size;
4462 current_machine->maxram_size = maxram_size;
4463 current_machine->ram_slots = ram_slots;
4464 current_machine->boot_order = boot_order;
4466 /* parse features once if machine provides default cpu_type */
4467 current_machine->cpu_type = machine_class->default_cpu_type;
4469 current_machine->cpu_type = parse_cpu_model(cpu_model);
4471 parse_numa_opts(current_machine);
4473 /* do monitor/qmp handling at preconfig state if requested */
4476 /* from here on runstate is RUN_STATE_PRELAUNCH */
4477 machine_run_board_init(current_machine);
4483 if (hax_enabled()) {
4487 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4488 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4492 /* init USB devices */
4493 if (machine_usb(current_machine)) {
4494 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4498 /* Check if IGD GFX passthrough. */
4501 /* init generic devices */
4502 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4503 if (qemu_opts_foreach(qemu_find_opts("device"),
4504 device_init_func, NULL, NULL)) {
4508 cpu_synchronize_all_post_init();
4510 rom_reset_order_override();
4512 /* Did we create any drives that we failed to create a device for? */
4513 drive_check_orphaned();
4515 /* Don't warn about the default network setup that you get if
4516 * no command line -net or -netdev options are specified. There
4517 * are two cases that we would otherwise complain about:
4518 * (1) board doesn't support a NIC but the implicit "-net nic"
4520 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4521 * sets up a nic that isn't connected to anything.
4524 net_check_clients();
4529 qemu_boot_set(boot_once, &error_fatal);
4530 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4533 /* init local displays */
4534 ds = init_displaystate();
4535 qemu_display_init(ds, &dpy);
4537 /* must be after terminal init, SDL library changes signal handlers */
4538 os_setup_signal_handling();
4540 /* init remote displays */
4542 qemu_opts_foreach(qemu_find_opts("vnc"),
4543 vnc_init_func, NULL, NULL);
4547 qemu_spice_display_init();
4550 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4554 qdev_machine_creation_done();
4556 /* TODO: once all bus devices are qdevified, this should be done
4557 * when bus is created by qdev.c */
4558 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4559 qemu_run_machine_init_done_notifiers();
4561 if (rom_check_and_register_reset() != 0) {
4562 error_report("rom check and register reset failed");
4568 /* This checkpoint is required by replay to separate prior clock
4569 reading from the other reads, because timer polling functions query
4570 clock values from the log. */
4571 replay_checkpoint(CHECKPOINT_RESET);
4572 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4573 register_global_state();
4574 if (replay_mode != REPLAY_MODE_NONE) {
4575 replay_vmstate_init();
4576 } else if (loadvm) {
4577 Error *local_err = NULL;
4578 if (load_snapshot(loadvm, &local_err) < 0) {
4579 error_report_err(local_err);
4584 qdev_prop_check_globals();
4585 if (vmstate_dump_file) {
4587 dump_vmstate_json_to_file(vmstate_dump_file);
4592 Error *local_err = NULL;
4593 qemu_start_incoming_migration(incoming, &local_err);
4595 error_reportf_err(local_err, "-incoming %s: ", incoming);
4598 } else if (autostart) {
4602 accel_setup_post(current_machine);
4607 gdbserver_cleanup();
4609 /* No more vcpu or device emulation activity beyond this point */
4612 job_cancel_sync_all();
4617 /* vhost-user must be cleaned up before chardevs. */
4623 user_creatable_cleanup();
4624 migration_object_finalize();
4625 /* TODO: unref root container, check all devices are ok */