4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
31 #include "sysemu/seccomp.h"
34 #if defined(CONFIG_VDE)
35 #include <libvdeplug.h>
39 #if defined(__APPLE__) || defined(main)
41 int qemu_main(int argc, char **argv, char **envp);
42 int main(int argc, char **argv)
44 return qemu_main(argc, argv, NULL);
47 #define main qemu_main
49 #endif /* CONFIG_SDL */
53 #define main qemu_main
54 #endif /* CONFIG_COCOA */
57 #include "qemu/error-report.h"
58 #include "qemu/sockets.h"
60 #include "hw/boards.h"
61 #include "sysemu/accel.h"
63 #include "hw/i386/pc.h"
64 #include "hw/isa/isa.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "sysemu/char.h"
84 #include "qemu/bitmap.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/block.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "audio/audio.h"
92 #include "migration/migration.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qmp/qjson.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qmp-commands.h"
102 #include "qemu/main-loop.h"
104 #include "fsdev/qemu-fsdev.h"
106 #include "sysemu/qtest.h"
108 #include "disas/disas.h"
111 #include "slirp/libslirp.h"
113 #include "trace-root.h"
114 #include "trace/control.h"
115 #include "qemu/queue.h"
116 #include "sysemu/arch_init.h"
118 #include "ui/qemu-spice.h"
119 #include "qapi/string-input-visitor.h"
120 #include "qapi/opts-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "qapi-event.h"
123 #include "exec/semihost.h"
124 #include "crypto/init.h"
125 #include "sysemu/replay.h"
126 #include "qapi/qmp/qerror.h"
127 #include "sysemu/iothread.h"
129 #define MAX_VIRTIO_CONSOLES 1
130 #define MAX_SCLP_CONSOLES 1
132 static const char *data_dir[16];
133 static int data_dir_idx;
134 const char *bios_name = NULL;
135 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
136 int request_opengl = -1;
138 const char* keyboard_layout = NULL;
140 const char *mem_path = NULL;
141 int mem_prealloc = 0; /* force preallocation of physical target memory */
142 bool enable_mlock = false;
144 NICInfo nd_table[MAX_NICS];
146 static int rtc_utc = 1;
147 static int rtc_date_offset = -1; /* -1 means no change */
148 QEMUClockType rtc_clock;
149 int vga_interface_type = VGA_NONE;
150 static int full_screen = 0;
151 static int no_frame = 0;
153 static bool grab_on_hover;
154 Chardev *serial_hds[MAX_SERIAL_PORTS];
155 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
156 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
157 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
158 int win2k_install_hack = 0;
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];
185 int only_migratable; /* turn it off unless user states otherwise */
187 int icount_align_option;
189 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
190 * little-endian "wire format" described in the SMBIOS 2.6 specification.
195 static NotifierList exit_notifiers =
196 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198 static NotifierList machine_init_done_notifiers =
199 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
203 enum xen_mode xen_mode = XEN_EMULATE;
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_sclp = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .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_sandbox_opts = {
260 .implied_opt_name = "enable",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
265 .type = QEMU_OPT_BOOL,
267 { /* end of list */ }
271 static QemuOptsList qemu_option_rom_opts = {
272 .name = "option-rom",
273 .implied_opt_name = "romfile",
274 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
278 .type = QEMU_OPT_NUMBER,
281 .type = QEMU_OPT_STRING,
283 { /* end of list */ }
287 static QemuOptsList qemu_machine_opts = {
289 .implied_opt_name = "type",
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
294 * no elements => accept any
295 * sanity checking will happen later
296 * when setting machine properties
302 static QemuOptsList qemu_boot_opts = {
304 .implied_opt_name = "order",
306 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
310 .type = QEMU_OPT_STRING,
313 .type = QEMU_OPT_STRING,
316 .type = QEMU_OPT_BOOL,
319 .type = QEMU_OPT_STRING,
321 .name = "splash-time",
322 .type = QEMU_OPT_STRING,
324 .name = "reboot-timeout",
325 .type = QEMU_OPT_STRING,
328 .type = QEMU_OPT_BOOL,
334 static QemuOptsList qemu_add_fd_opts = {
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
340 .type = QEMU_OPT_NUMBER,
341 .help = "file descriptor of which a duplicate is added to fd set",
344 .type = QEMU_OPT_NUMBER,
345 .help = "ID of the fd set to add fd to",
348 .type = QEMU_OPT_STRING,
349 .help = "free-form string used to describe fd",
351 { /* end of list */ }
355 static QemuOptsList qemu_object_opts = {
357 .implied_opt_name = "qom-type",
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
364 static QemuOptsList qemu_tpmdev_opts = {
366 .implied_opt_name = "type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
369 /* options are defined in the TPM backends */
370 { /* end of list */ }
374 static QemuOptsList qemu_realtime_opts = {
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
380 .type = QEMU_OPT_BOOL,
382 { /* end of list */ }
386 static QemuOptsList qemu_msg_opts = {
388 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
392 .type = QEMU_OPT_BOOL,
394 { /* end of list */ }
398 static QemuOptsList qemu_name_opts = {
400 .implied_opt_name = "guest",
402 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
406 .type = QEMU_OPT_STRING,
407 .help = "Sets the name of the guest.\n"
408 "This name will be displayed in the SDL window caption.\n"
409 "The name will also be used for the VNC server",
412 .type = QEMU_OPT_STRING,
413 .help = "Sets the name of the QEMU process, as shown in top etc",
415 .name = "debug-threads",
416 .type = QEMU_OPT_BOOL,
417 .help = "When enabled, name the individual threads; defaults off.\n"
418 "NOTE: The thread names are for debugging and not a\n"
421 { /* End of list */ }
425 static QemuOptsList qemu_mem_opts = {
427 .implied_opt_name = "size",
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
433 .type = QEMU_OPT_SIZE,
437 .type = QEMU_OPT_NUMBER,
441 .type = QEMU_OPT_SIZE,
443 { /* end of list */ }
447 static QemuOptsList qemu_icount_opts = {
449 .implied_opt_name = "shift",
451 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
455 .type = QEMU_OPT_STRING,
458 .type = QEMU_OPT_BOOL,
461 .type = QEMU_OPT_BOOL,
464 .type = QEMU_OPT_STRING,
467 .type = QEMU_OPT_STRING,
469 .name = "rrsnapshot",
470 .type = QEMU_OPT_STRING,
472 { /* end of list */ }
476 static QemuOptsList qemu_semihosting_config_opts = {
477 .name = "semihosting-config",
478 .implied_opt_name = "enable",
479 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
483 .type = QEMU_OPT_BOOL,
486 .type = QEMU_OPT_STRING,
489 .type = QEMU_OPT_STRING,
491 { /* end of list */ }
495 static QemuOptsList qemu_fw_cfg_opts = {
497 .implied_opt_name = "name",
498 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
502 .type = QEMU_OPT_STRING,
503 .help = "Sets the fw_cfg name of the blob to be inserted",
506 .type = QEMU_OPT_STRING,
507 .help = "Sets the name of the file from which\n"
508 "the fw_cfg blob will be loaded",
511 .type = QEMU_OPT_STRING,
512 .help = "Sets content of the blob to be inserted from a string",
514 { /* end of list */ }
519 * Get machine options
521 * Returns: machine options (never null).
523 QemuOpts *qemu_get_machine_opts(void)
525 return qemu_find_opts_singleton("machine");
528 const char *qemu_get_vm_name(void)
533 static void res_free(void)
535 g_free(boot_splash_filedata);
536 boot_splash_filedata = NULL;
539 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
541 const char *driver = qemu_opt_get(opts, "driver");
546 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
547 if (strcmp(default_list[i].driver, driver) != 0)
549 *(default_list[i].flag) = 0;
554 /***********************************************************/
557 static RunState current_run_state = RUN_STATE_PRELAUNCH;
559 /* We use RUN_STATE__MAX but any invalid value will do */
560 static RunState vmstop_requested = RUN_STATE__MAX;
561 static QemuMutex vmstop_lock;
566 } RunStateTransition;
568 static const RunStateTransition runstate_transitions_def[] = {
570 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
571 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
572 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
574 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
575 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
576 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
577 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
578 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
579 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
580 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
581 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
582 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
583 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
584 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
585 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
587 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
588 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
591 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
592 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
593 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
595 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
596 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
598 { RUN_STATE_PAUSED, RUN_STATE_COLO},
600 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
601 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
602 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
604 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
605 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
608 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
609 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
610 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
611 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
613 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
614 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_COLO, RUN_STATE_RUNNING },
618 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
619 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
621 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
622 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
625 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
626 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
627 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
628 { RUN_STATE_RUNNING, RUN_STATE_COLO},
630 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
632 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
633 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
637 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
638 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
639 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
643 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
644 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
646 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
648 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
649 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
652 { RUN_STATE__MAX, RUN_STATE__MAX },
655 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
657 bool runstate_check(RunState state)
659 return current_run_state == state;
662 bool runstate_store(char *str, size_t size)
664 const char *state = RunState_lookup[current_run_state];
665 size_t len = strlen(state) + 1;
670 memcpy(str, state, len);
674 static void runstate_init(void)
676 const RunStateTransition *p;
678 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
679 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
680 runstate_valid_transitions[p->from][p->to] = true;
683 qemu_mutex_init(&vmstop_lock);
686 /* This function will abort() on invalid state transitions */
687 void runstate_set(RunState new_state)
689 assert(new_state < RUN_STATE__MAX);
691 if (current_run_state == new_state) {
695 if (!runstate_valid_transitions[current_run_state][new_state]) {
696 error_report("invalid runstate transition: '%s' -> '%s'",
697 RunState_lookup[current_run_state],
698 RunState_lookup[new_state]);
701 trace_runstate_set(new_state);
702 current_run_state = new_state;
705 int runstate_is_running(void)
707 return runstate_check(RUN_STATE_RUNNING);
710 bool runstate_needs_reset(void)
712 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
713 runstate_check(RUN_STATE_SHUTDOWN);
716 StatusInfo *qmp_query_status(Error **errp)
718 StatusInfo *info = g_malloc0(sizeof(*info));
720 info->running = runstate_is_running();
721 info->singlestep = singlestep;
722 info->status = current_run_state;
727 static bool qemu_vmstop_requested(RunState *r)
729 qemu_mutex_lock(&vmstop_lock);
730 *r = vmstop_requested;
731 vmstop_requested = RUN_STATE__MAX;
732 qemu_mutex_unlock(&vmstop_lock);
733 return *r < RUN_STATE__MAX;
736 void qemu_system_vmstop_request_prepare(void)
738 qemu_mutex_lock(&vmstop_lock);
741 void qemu_system_vmstop_request(RunState state)
743 vmstop_requested = state;
744 qemu_mutex_unlock(&vmstop_lock);
752 qemu_vmstop_requested(&requested);
753 if (runstate_is_running() && requested == RUN_STATE__MAX) {
757 /* Ensure that a STOP/RESUME pair of events is emitted if a
758 * vmstop request was pending. The BLOCK_IO_ERROR event, for
759 * example, according to documentation is always followed by
762 if (runstate_is_running()) {
763 qapi_event_send_stop(&error_abort);
765 replay_enable_events();
767 runstate_set(RUN_STATE_RUNNING);
768 vm_state_notify(1, RUN_STATE_RUNNING);
772 qapi_event_send_resume(&error_abort);
776 /***********************************************************/
777 /* real time host monotonic timer */
779 static time_t qemu_time(void)
781 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
784 /***********************************************************/
785 /* host time/date access */
786 void qemu_get_timedate(struct tm *tm, int offset)
788 time_t ti = qemu_time();
791 if (rtc_date_offset == -1) {
795 localtime_r(&ti, tm);
797 ti -= rtc_date_offset;
802 int qemu_timedate_diff(struct tm *tm)
806 if (rtc_date_offset == -1)
808 seconds = mktimegm(tm);
811 tmp.tm_isdst = -1; /* use timezone to figure it out */
812 seconds = mktime(&tmp);
815 seconds = mktimegm(tm) + rtc_date_offset;
817 return seconds - qemu_time();
820 static void configure_rtc_date_offset(const char *startdate, int legacy)
822 time_t rtc_start_date;
825 if (!strcmp(startdate, "now") && legacy) {
826 rtc_date_offset = -1;
828 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
836 } else if (sscanf(startdate, "%d-%d-%d",
848 rtc_start_date = mktimegm(&tm);
849 if (rtc_start_date == -1) {
851 error_report("invalid date format");
852 error_printf("valid formats: "
853 "'2006-06-17T16:01:21' or '2006-06-17'\n");
856 rtc_date_offset = qemu_time() - rtc_start_date;
860 static void configure_rtc(QemuOpts *opts)
864 value = qemu_opt_get(opts, "base");
866 if (!strcmp(value, "utc")) {
868 } else if (!strcmp(value, "localtime")) {
869 Error *blocker = NULL;
871 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
872 "-rtc base=localtime");
873 replay_add_blocker(blocker);
875 configure_rtc_date_offset(value, 0);
878 value = qemu_opt_get(opts, "clock");
880 if (!strcmp(value, "host")) {
881 rtc_clock = QEMU_CLOCK_HOST;
882 } else if (!strcmp(value, "rt")) {
883 rtc_clock = QEMU_CLOCK_REALTIME;
884 } else if (!strcmp(value, "vm")) {
885 rtc_clock = QEMU_CLOCK_VIRTUAL;
887 error_report("invalid option value '%s'", value);
891 value = qemu_opt_get(opts, "driftfix");
893 if (!strcmp(value, "slew")) {
894 static GlobalProperty slew_lost_ticks = {
895 .driver = "mc146818rtc",
896 .property = "lost_tick_policy",
900 qdev_prop_register_global(&slew_lost_ticks);
901 } else if (!strcmp(value, "none")) {
902 /* discard is default */
904 error_report("invalid option value '%s'", value);
910 /***********************************************************/
911 /* Bluetooth support */
914 static struct HCIInfo *hci_table[MAX_NICS];
916 struct HCIInfo *qemu_next_hci(void)
918 if (cur_hci == nb_hcis)
921 return hci_table[cur_hci++];
924 static int bt_hci_parse(const char *str)
929 if (nb_hcis >= MAX_NICS) {
930 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
943 bdaddr.b[5] = 0x56 + nb_hcis;
944 hci->bdaddr_set(hci, bdaddr.b);
946 hci_table[nb_hcis++] = hci;
951 static void bt_vhci_add(int vlan_id)
953 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
956 error_report("warning: adding a VHCI to an empty scatternet %i",
959 bt_vhci_init(bt_new_hci(vlan));
962 static struct bt_device_s *bt_device_add(const char *opt)
964 struct bt_scatternet_s *vlan;
966 char *endp = strstr(opt, ",vlan=");
967 int len = (endp ? endp - opt : strlen(opt)) + 1;
970 pstrcpy(devname, MIN(sizeof(devname), len), opt);
973 vlan_id = strtol(endp + 6, &endp, 0);
975 error_report("unrecognised bluetooth vlan Id");
980 vlan = qemu_find_bt_vlan(vlan_id);
983 error_report("warning: adding a slave device to an empty scatternet %i",
986 if (!strcmp(devname, "keyboard"))
987 return bt_keyboard_init(vlan);
989 error_report("unsupported bluetooth device '%s'", devname);
993 static int bt_parse(const char *opt)
995 const char *endp, *p;
998 if (strstart(opt, "hci", &endp)) {
999 if (!*endp || *endp == ',') {
1001 if (!strstart(endp, ",vlan=", 0))
1004 return bt_hci_parse(opt);
1006 } else if (strstart(opt, "vhci", &endp)) {
1007 if (!*endp || *endp == ',') {
1009 if (strstart(endp, ",vlan=", &p)) {
1010 vlan = strtol(p, (char **) &endp, 0);
1012 error_report("bad scatternet '%s'", p);
1016 error_report("bad parameter '%s'", endp + 1);
1025 } else if (strstart(opt, "device:", &endp))
1026 return !bt_device_add(endp);
1028 error_report("bad bluetooth parameter '%s'", opt);
1032 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1034 /* FIXME: change this to true for 1.3 */
1035 if (qemu_opt_get_bool(opts, "enable", false)) {
1036 #ifdef CONFIG_SECCOMP
1037 if (seccomp_start() < 0) {
1038 error_report("failed to install seccomp syscall filter "
1043 error_report("seccomp support is disabled");
1051 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1053 const char *proc_name;
1055 if (qemu_opt_get(opts, "debug-threads")) {
1056 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1058 qemu_name = qemu_opt_get(opts, "guest");
1060 proc_name = qemu_opt_get(opts, "process");
1062 os_set_proc_name(proc_name);
1068 bool defaults_enabled(void)
1070 return has_defaults;
1074 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1076 int fd, dupfd, flags;
1078 const char *fd_opaque = NULL;
1081 fd = qemu_opt_get_number(opts, "fd", -1);
1082 fdset_id = qemu_opt_get_number(opts, "set", -1);
1083 fd_opaque = qemu_opt_get(opts, "opaque");
1086 error_report("fd option is required and must be non-negative");
1090 if (fd <= STDERR_FILENO) {
1091 error_report("fd cannot be a standard I/O stream");
1096 * All fds inherited across exec() necessarily have FD_CLOEXEC
1097 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1099 flags = fcntl(fd, F_GETFD);
1100 if (flags == -1 || (flags & FD_CLOEXEC)) {
1101 error_report("fd is not valid or already in use");
1106 error_report("set option is required and must be non-negative");
1110 #ifdef F_DUPFD_CLOEXEC
1111 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1115 qemu_set_cloexec(dupfd);
1119 error_report("error duplicating fd: %s", strerror(errno));
1123 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1124 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1131 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1135 fd = qemu_opt_get_number(opts, "fd", -1);
1142 /***********************************************************/
1143 /* QEMU Block devices */
1145 #define HD_OPTS "media=disk"
1146 #define CDROM_OPTS "media=cdrom"
1148 #define PFLASH_OPTS ""
1152 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1154 BlockInterfaceType *block_default_type = opaque;
1156 return drive_new(opts, *block_default_type) == NULL;
1159 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1161 if (qemu_opt_get(opts, "snapshot") == NULL) {
1162 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1167 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1168 int index, const char *optstr)
1173 if (!enable || drive_get_by_index(type, index)) {
1177 opts = drive_add(type, index, NULL, optstr);
1179 drive_enable_snapshot(NULL, opts, NULL);
1182 dinfo = drive_new(opts, type);
1186 dinfo->is_default = true;
1190 static QemuOptsList qemu_smp_opts = {
1192 .implied_opt_name = "cpus",
1193 .merge_lists = true,
1194 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1198 .type = QEMU_OPT_NUMBER,
1201 .type = QEMU_OPT_NUMBER,
1204 .type = QEMU_OPT_NUMBER,
1207 .type = QEMU_OPT_NUMBER,
1210 .type = QEMU_OPT_NUMBER,
1212 { /*End of list */ }
1216 static void smp_parse(QemuOpts *opts)
1219 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1220 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1221 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1222 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1224 /* compute missing values, prefer sockets over cores over threads */
1225 if (cpus == 0 || sockets == 0) {
1226 sockets = sockets > 0 ? sockets : 1;
1227 cores = cores > 0 ? cores : 1;
1228 threads = threads > 0 ? threads : 1;
1230 cpus = cores * threads * sockets;
1232 } else if (cores == 0) {
1233 threads = threads > 0 ? threads : 1;
1234 cores = cpus / (sockets * threads);
1235 cores = cores > 0 ? cores : 1;
1236 } else if (threads == 0) {
1237 threads = cpus / (cores * sockets);
1238 threads = threads > 0 ? threads : 1;
1239 } else if (sockets * cores * threads < cpus) {
1240 error_report("cpu topology: "
1241 "sockets (%u) * cores (%u) * threads (%u) < "
1243 sockets, cores, threads, cpus);
1247 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1249 if (max_cpus < cpus) {
1250 error_report("maxcpus must be equal to or greater than smp");
1254 if (sockets * cores * threads > max_cpus) {
1255 error_report("cpu topology: "
1256 "sockets (%u) * cores (%u) * threads (%u) > "
1258 sockets, cores, threads, max_cpus);
1264 smp_threads = threads;
1268 Error *blocker = NULL;
1269 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1270 replay_add_blocker(blocker);
1274 static void realtime_init(void)
1277 if (os_mlock() < 0) {
1278 error_report("locking memory failed");
1285 static void configure_msg(QemuOpts *opts)
1287 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1290 /***********************************************************/
1293 typedef struct SemihostingConfig {
1295 SemihostingTarget target;
1298 const char *cmdline; /* concatenated argv */
1299 } SemihostingConfig;
1301 static SemihostingConfig semihosting;
1303 bool semihosting_enabled(void)
1305 return semihosting.enabled;
1308 SemihostingTarget semihosting_get_target(void)
1310 return semihosting.target;
1313 const char *semihosting_get_arg(int i)
1315 if (i >= semihosting.argc) {
1318 return semihosting.argv[i];
1321 int semihosting_get_argc(void)
1323 return semihosting.argc;
1326 const char *semihosting_get_cmdline(void)
1328 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1329 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1331 return semihosting.cmdline;
1334 static int add_semihosting_arg(void *opaque,
1335 const char *name, const char *val,
1338 SemihostingConfig *s = opaque;
1339 if (strcmp(name, "arg") == 0) {
1341 /* one extra element as g_strjoinv() expects NULL-terminated array */
1342 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1343 s->argv[s->argc - 1] = val;
1344 s->argv[s->argc] = NULL;
1349 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1350 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1355 add_semihosting_arg(&semihosting, "arg", file, NULL);
1357 /* split -append and initialize argv[1..n] */
1358 cmd_token = strtok(g_strdup(cmd), " ");
1360 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1361 cmd_token = strtok(NULL, " ");
1365 /* Now we still need this for compatibility with XEN. */
1366 bool has_igd_gfx_passthru;
1367 static void igd_gfx_passthru(void)
1369 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1372 /***********************************************************/
1375 static int usb_device_add(const char *devname)
1377 USBDevice *dev = NULL;
1378 #ifndef CONFIG_LINUX
1382 if (!machine_usb(current_machine)) {
1386 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1387 dev = usbdevice_create(devname);
1391 /* the other ones */
1392 #ifndef CONFIG_LINUX
1393 /* only the linux version is qdev-ified, usb-bsd still needs this */
1394 if (strstart(devname, "host:", &p)) {
1395 dev = usb_host_device_open(usb_bus_find(-1), p);
1405 static int usb_device_del(const char *devname)
1410 if (strstart(devname, "host:", &p)) {
1414 if (!machine_usb(current_machine)) {
1418 p = strchr(devname, '.');
1421 bus_num = strtoul(devname, NULL, 0);
1422 addr = strtoul(p + 1, NULL, 0);
1424 return usb_device_delete_addr(bus_num, addr);
1427 static int usb_parse(const char *cmdline)
1430 r = usb_device_add(cmdline);
1432 error_report("could not add USB device '%s'", cmdline);
1437 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1439 const char *devname = qdict_get_str(qdict, "devname");
1440 if (usb_device_add(devname) < 0) {
1441 error_report("could not add USB device '%s'", devname);
1445 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1447 const char *devname = qdict_get_str(qdict, "devname");
1448 if (usb_device_del(devname) < 0) {
1449 error_report("could not delete USB device '%s'", devname);
1453 /***********************************************************/
1454 /* machine registration */
1456 MachineState *current_machine;
1458 static MachineClass *find_machine(const char *name)
1460 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1461 MachineClass *mc = NULL;
1463 for (el = machines; el; el = el->next) {
1464 MachineClass *temp = el->data;
1466 if (!strcmp(temp->name, name)) {
1471 !strcmp(temp->alias, name)) {
1477 g_slist_free(machines);
1481 MachineClass *find_default_machine(void)
1483 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1484 MachineClass *mc = NULL;
1486 for (el = machines; el; el = el->next) {
1487 MachineClass *temp = el->data;
1489 if (temp->is_default) {
1495 g_slist_free(machines);
1499 MachineInfoList *qmp_query_machines(Error **errp)
1501 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1502 MachineInfoList *mach_list = NULL;
1504 for (el = machines; el; el = el->next) {
1505 MachineClass *mc = el->data;
1506 MachineInfoList *entry;
1509 info = g_malloc0(sizeof(*info));
1510 if (mc->is_default) {
1511 info->has_is_default = true;
1512 info->is_default = true;
1516 info->has_alias = true;
1517 info->alias = g_strdup(mc->alias);
1520 info->name = g_strdup(mc->name);
1521 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1522 info->hotpluggable_cpus = !!mc->query_hotpluggable_cpus;
1524 entry = g_malloc0(sizeof(*entry));
1525 entry->value = info;
1526 entry->next = mach_list;
1530 g_slist_free(machines);
1534 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1536 ObjectProperty *prop;
1537 ObjectPropertyIterator iter;
1539 if (!qemu_opt_has_help_opt(opts)) {
1543 object_property_iter_init(&iter, OBJECT(machine));
1544 while ((prop = object_property_iter_next(&iter))) {
1549 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1550 prop->name, prop->type);
1551 if (prop->description) {
1552 error_printf(" (%s)\n", prop->description);
1561 /***********************************************************/
1562 /* main execution loop */
1564 struct vm_change_state_entry {
1565 VMChangeStateHandler *cb;
1567 QLIST_ENTRY (vm_change_state_entry) entries;
1570 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1572 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1575 VMChangeStateEntry *e;
1577 e = g_malloc0(sizeof (*e));
1581 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1585 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1587 QLIST_REMOVE (e, entries);
1591 void vm_state_notify(int running, RunState state)
1593 VMChangeStateEntry *e, *next;
1595 trace_vm_state_notify(running, state);
1597 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1598 e->cb(e->opaque, running, state);
1602 static int reset_requested;
1603 static int shutdown_requested, shutdown_signal = -1;
1604 static pid_t shutdown_pid;
1605 static int powerdown_requested;
1606 static int debug_requested;
1607 static int suspend_requested;
1608 static WakeupReason wakeup_reason;
1609 static NotifierList powerdown_notifiers =
1610 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1611 static NotifierList suspend_notifiers =
1612 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1613 static NotifierList wakeup_notifiers =
1614 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1615 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1617 int qemu_shutdown_requested_get(void)
1619 return shutdown_requested;
1622 int qemu_reset_requested_get(void)
1624 return reset_requested;
1627 static int qemu_shutdown_requested(void)
1629 return atomic_xchg(&shutdown_requested, 0);
1632 static void qemu_kill_report(void)
1634 if (!qtest_driver() && shutdown_signal != -1) {
1635 if (shutdown_pid == 0) {
1636 /* This happens for eg ^C at the terminal, so it's worth
1637 * avoiding printing an odd message in that case.
1639 error_report("terminating on signal %d", shutdown_signal);
1641 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1643 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1644 shutdown_signal, shutdown_pid,
1645 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1646 g_free(shutdown_cmd);
1648 shutdown_signal = -1;
1652 static int qemu_reset_requested(void)
1654 int r = reset_requested;
1655 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1656 reset_requested = 0;
1662 static int qemu_suspend_requested(void)
1664 int r = suspend_requested;
1665 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1666 suspend_requested = 0;
1672 static WakeupReason qemu_wakeup_requested(void)
1674 return wakeup_reason;
1677 static int qemu_powerdown_requested(void)
1679 int r = powerdown_requested;
1680 powerdown_requested = 0;
1684 static int qemu_debug_requested(void)
1686 int r = debug_requested;
1687 debug_requested = 0;
1691 void qemu_system_reset(bool report)
1695 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1697 cpu_synchronize_all_states();
1699 if (mc && mc->reset) {
1702 qemu_devices_reset();
1705 qapi_event_send_reset(&error_abort);
1707 cpu_synchronize_all_post_reset();
1710 void qemu_system_guest_panicked(void)
1713 current_cpu->crash_occurred = true;
1715 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1716 vm_stop(RUN_STATE_GUEST_PANICKED);
1718 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1720 qemu_system_shutdown_request();
1724 void qemu_system_reset_request(void)
1727 shutdown_requested = 1;
1729 reset_requested = 1;
1732 qemu_notify_event();
1735 static void qemu_system_suspend(void)
1738 notifier_list_notify(&suspend_notifiers, NULL);
1739 runstate_set(RUN_STATE_SUSPENDED);
1740 qapi_event_send_suspend(&error_abort);
1743 void qemu_system_suspend_request(void)
1745 if (runstate_check(RUN_STATE_SUSPENDED)) {
1748 suspend_requested = 1;
1750 qemu_notify_event();
1753 void qemu_register_suspend_notifier(Notifier *notifier)
1755 notifier_list_add(&suspend_notifiers, notifier);
1758 void qemu_system_wakeup_request(WakeupReason reason)
1760 trace_system_wakeup_request(reason);
1762 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1765 if (!(wakeup_reason_mask & (1 << reason))) {
1768 runstate_set(RUN_STATE_RUNNING);
1769 wakeup_reason = reason;
1770 qemu_notify_event();
1773 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1776 wakeup_reason_mask |= (1 << reason);
1778 wakeup_reason_mask &= ~(1 << reason);
1782 void qemu_register_wakeup_notifier(Notifier *notifier)
1784 notifier_list_add(&wakeup_notifiers, notifier);
1787 void qemu_system_killed(int signal, pid_t pid)
1789 shutdown_signal = signal;
1793 /* Cannot call qemu_system_shutdown_request directly because
1794 * we are in a signal handler.
1796 shutdown_requested = 1;
1797 qemu_notify_event();
1800 void qemu_system_shutdown_request(void)
1802 trace_qemu_system_shutdown_request();
1803 replay_shutdown_request();
1804 shutdown_requested = 1;
1805 qemu_notify_event();
1808 static void qemu_system_powerdown(void)
1810 qapi_event_send_powerdown(&error_abort);
1811 notifier_list_notify(&powerdown_notifiers, NULL);
1814 void qemu_system_powerdown_request(void)
1816 trace_qemu_system_powerdown_request();
1817 powerdown_requested = 1;
1818 qemu_notify_event();
1821 void qemu_register_powerdown_notifier(Notifier *notifier)
1823 notifier_list_add(&powerdown_notifiers, notifier);
1826 void qemu_system_debug_request(void)
1828 debug_requested = 1;
1829 qemu_notify_event();
1832 static bool main_loop_should_exit(void)
1835 if (qemu_debug_requested()) {
1836 vm_stop(RUN_STATE_DEBUG);
1838 if (qemu_suspend_requested()) {
1839 qemu_system_suspend();
1841 if (qemu_shutdown_requested()) {
1843 qapi_event_send_shutdown(&error_abort);
1845 vm_stop(RUN_STATE_SHUTDOWN);
1850 if (qemu_reset_requested()) {
1852 qemu_system_reset(VMRESET_REPORT);
1854 if (!runstate_check(RUN_STATE_RUNNING) &&
1855 !runstate_check(RUN_STATE_INMIGRATE)) {
1856 runstate_set(RUN_STATE_PRELAUNCH);
1859 if (qemu_wakeup_requested()) {
1861 qemu_system_reset(VMRESET_SILENT);
1862 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1863 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1865 qapi_event_send_wakeup(&error_abort);
1867 if (qemu_powerdown_requested()) {
1868 qemu_system_powerdown();
1870 if (qemu_vmstop_requested(&r)) {
1876 static void main_loop(void)
1880 #ifdef CONFIG_PROFILER
1884 nonblocking = tcg_enabled() && last_io > 0;
1885 #ifdef CONFIG_PROFILER
1886 ti = profile_getclock();
1888 last_io = main_loop_wait(nonblocking);
1889 #ifdef CONFIG_PROFILER
1890 dev_time += profile_getclock() - ti;
1892 } while (!main_loop_should_exit());
1895 static void version(void)
1897 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1898 QEMU_COPYRIGHT "\n");
1901 static void help(int exitcode)
1904 printf("usage: %s [options] [disk_image]\n\n"
1905 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1906 error_get_progname());
1908 #define QEMU_OPTIONS_GENERATE_HELP
1909 #include "qemu-options-wrapper.h"
1911 printf("\nDuring emulation, the following keys are useful:\n"
1912 "ctrl-alt-f toggle full screen\n"
1913 "ctrl-alt-n switch to virtual console 'n'\n"
1914 "ctrl-alt toggle mouse and keyboard grab\n"
1916 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1921 #define HAS_ARG 0x0001
1923 typedef struct QEMUOption {
1930 static const QEMUOption qemu_options[] = {
1931 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1932 #define QEMU_OPTIONS_GENERATE_OPTIONS
1933 #include "qemu-options-wrapper.h"
1937 typedef struct VGAInterfaceInfo {
1938 const char *opt_name; /* option name */
1939 const char *name; /* human-readable name */
1940 /* Class names indicating that support is available.
1941 * If no class is specified, the interface is always available */
1942 const char *class_names[2];
1945 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1951 .name = "standard VGA",
1952 .class_names = { "VGA", "isa-vga" },
1955 .opt_name = "cirrus",
1956 .name = "Cirrus VGA",
1957 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1960 .opt_name = "vmware",
1961 .name = "VMWare SVGA",
1962 .class_names = { "vmware-svga" },
1965 .opt_name = "virtio",
1966 .name = "Virtio VGA",
1967 .class_names = { "virtio-vga" },
1972 .class_names = { "qxl-vga" },
1976 .name = "TCX framebuffer",
1977 .class_names = { "SUNW,tcx" },
1981 .name = "CG3 framebuffer",
1982 .class_names = { "cgthree" },
1985 .opt_name = "xenfb",
1989 static bool vga_interface_available(VGAInterfaceType t)
1991 VGAInterfaceInfo *ti = &vga_interfaces[t];
1993 assert(t < VGA_TYPE_MAX);
1994 return !ti->class_names[0] ||
1995 object_class_by_name(ti->class_names[0]) ||
1996 object_class_by_name(ti->class_names[1]);
1999 static void select_vgahw(const char *p)
2004 assert(vga_interface_type == VGA_NONE);
2005 for (t = 0; t < VGA_TYPE_MAX; t++) {
2006 VGAInterfaceInfo *ti = &vga_interfaces[t];
2007 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2008 if (!vga_interface_available(t)) {
2009 error_report("%s not available", ti->name);
2012 vga_interface_type = t;
2016 if (t == VGA_TYPE_MAX) {
2018 error_report("unknown vga type: %s", p);
2022 const char *nextopt;
2024 if (strstart(opts, ",retrace=", &nextopt)) {
2026 if (strstart(opts, "dumb", &nextopt))
2027 vga_retrace_method = VGA_RETRACE_DUMB;
2028 else if (strstart(opts, "precise", &nextopt))
2029 vga_retrace_method = VGA_RETRACE_PRECISE;
2030 else goto invalid_vga;
2031 } else goto invalid_vga;
2036 typedef enum DisplayType {
2045 static DisplayType select_display(const char *p)
2048 DisplayType display = DT_DEFAULT;
2050 if (strstart(p, "sdl", &opts)) {
2054 const char *nextopt;
2056 if (strstart(opts, ",frame=", &nextopt)) {
2058 if (strstart(opts, "on", &nextopt)) {
2060 } else if (strstart(opts, "off", &nextopt)) {
2063 goto invalid_sdl_args;
2065 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2067 if (strstart(opts, "on", &nextopt)) {
2069 } else if (strstart(opts, "off", &nextopt)) {
2072 goto invalid_sdl_args;
2074 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2076 if (strstart(opts, "on", &nextopt)) {
2078 } else if (strstart(opts, "off", &nextopt)) {
2081 goto invalid_sdl_args;
2083 } else if (strstart(opts, ",window_close=", &nextopt)) {
2085 if (strstart(opts, "on", &nextopt)) {
2087 } else if (strstart(opts, "off", &nextopt)) {
2090 goto invalid_sdl_args;
2092 } else if (strstart(opts, ",gl=", &nextopt)) {
2094 if (strstart(opts, "on", &nextopt)) {
2096 } else if (strstart(opts, "off", &nextopt)) {
2099 goto invalid_sdl_args;
2103 error_report("invalid SDL option string");
2109 error_report("SDL support is disabled");
2112 } else if (strstart(p, "vnc", &opts)) {
2114 vnc_parse(opts + 1, &error_fatal);
2116 error_report("VNC requires a display argument vnc=<display>");
2119 } else if (strstart(p, "curses", &opts)) {
2120 #ifdef CONFIG_CURSES
2121 display = DT_CURSES;
2123 error_report("curses support is disabled");
2126 } else if (strstart(p, "gtk", &opts)) {
2130 const char *nextopt;
2132 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2134 if (strstart(opts, "on", &nextopt)) {
2135 grab_on_hover = true;
2136 } else if (strstart(opts, "off", &nextopt)) {
2137 grab_on_hover = false;
2139 goto invalid_gtk_args;
2141 } else if (strstart(opts, ",gl=", &nextopt)) {
2143 if (strstart(opts, "on", &nextopt)) {
2145 } else if (strstart(opts, "off", &nextopt)) {
2148 goto invalid_gtk_args;
2152 error_report("invalid GTK option string");
2158 error_report("GTK support is disabled");
2161 } else if (strstart(p, "none", &opts)) {
2164 error_report("unknown display type");
2171 static int balloon_parse(const char *arg)
2175 if (strcmp(arg, "none") == 0) {
2179 if (!strncmp(arg, "virtio", 6)) {
2180 if (arg[6] == ',') {
2181 /* have params -> parse them */
2182 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2187 /* create empty opts */
2188 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2191 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2198 char *qemu_find_file(int type, const char *name)
2204 /* Try the name as a straight path first */
2205 if (access(name, R_OK) == 0) {
2206 trace_load_file(name, name);
2207 return g_strdup(name);
2211 case QEMU_FILE_TYPE_BIOS:
2214 case QEMU_FILE_TYPE_KEYMAP:
2215 subdir = "keymaps/";
2221 for (i = 0; i < data_dir_idx; i++) {
2222 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2223 if (access(buf, R_OK) == 0) {
2224 trace_load_file(name, buf);
2232 static inline bool nonempty_str(const char *str)
2237 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2241 const char *name, *file, *str;
2242 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2244 if (fw_cfg == NULL) {
2245 error_report("fw_cfg device not available");
2248 name = qemu_opt_get(opts, "name");
2249 file = qemu_opt_get(opts, "file");
2250 str = qemu_opt_get(opts, "string");
2252 /* we need name and either a file or the content string */
2253 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2254 error_report("invalid argument(s)");
2257 if (nonempty_str(file) && nonempty_str(str)) {
2258 error_report("file and string are mutually exclusive");
2261 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2262 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2265 if (strncmp(name, "opt/", 4) != 0) {
2266 error_report("warning: externally provided fw_cfg item names "
2267 "should be prefixed with \"opt/\"");
2269 if (nonempty_str(str)) {
2270 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2271 buf = g_memdup(str, size);
2273 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2274 error_report("can't load %s", file);
2278 /* For legacy, keep user files in a specific global order. */
2279 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2280 fw_cfg_add_file(fw_cfg, name, buf, size);
2281 fw_cfg_reset_order_override(fw_cfg);
2285 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2287 return qdev_device_help(opts);
2290 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2295 dev = qdev_device_add(opts, &err);
2297 error_report_err(err);
2300 object_unref(OBJECT(dev));
2304 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2306 Error *local_err = NULL;
2308 qemu_chr_new_from_opts(opts, &local_err);
2310 error_report_err(local_err);
2316 #ifdef CONFIG_VIRTFS
2317 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2319 return qemu_fsdev_add(opts);
2323 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2326 const char *chardev;
2330 mode = qemu_opt_get(opts, "mode");
2334 if (strcmp(mode, "readline") == 0) {
2335 flags = MONITOR_USE_READLINE;
2336 } else if (strcmp(mode, "control") == 0) {
2337 flags = MONITOR_USE_CONTROL;
2339 error_report("unknown monitor mode \"%s\"", mode);
2343 if (qemu_opt_get_bool(opts, "pretty", 0))
2344 flags |= MONITOR_USE_PRETTY;
2346 if (qemu_opt_get_bool(opts, "default", 0)) {
2347 error_report("option 'default' does nothing and is deprecated");
2350 chardev = qemu_opt_get(opts, "chardev");
2351 chr = qemu_chr_find(chardev);
2353 error_report("chardev \"%s\" not found", chardev);
2357 monitor_init(chr, flags);
2361 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2363 static int monitor_device_index = 0;
2368 if (strstart(optarg, "chardev:", &p)) {
2369 snprintf(label, sizeof(label), "%s", p);
2371 snprintf(label, sizeof(label), "compat_monitor%d",
2372 monitor_device_index);
2373 opts = qemu_chr_parse_compat(label, optarg);
2375 error_report("parse error: %s", optarg);
2380 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2381 qemu_opt_set(opts, "mode", mode, &error_abort);
2382 qemu_opt_set(opts, "chardev", label, &error_abort);
2383 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2384 monitor_device_index++;
2387 struct device_config {
2389 DEV_USB, /* -usbdevice */
2391 DEV_SERIAL, /* -serial */
2392 DEV_PARALLEL, /* -parallel */
2393 DEV_VIRTCON, /* -virtioconsole */
2394 DEV_DEBUGCON, /* -debugcon */
2395 DEV_GDB, /* -gdb, -s */
2396 DEV_SCLP, /* s390 sclp */
2398 const char *cmdline;
2400 QTAILQ_ENTRY(device_config) next;
2403 static QTAILQ_HEAD(, device_config) device_configs =
2404 QTAILQ_HEAD_INITIALIZER(device_configs);
2406 static void add_device_config(int type, const char *cmdline)
2408 struct device_config *conf;
2410 conf = g_malloc0(sizeof(*conf));
2412 conf->cmdline = cmdline;
2413 loc_save(&conf->loc);
2414 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2417 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2419 struct device_config *conf;
2422 QTAILQ_FOREACH(conf, &device_configs, next) {
2423 if (conf->type != type)
2425 loc_push_restore(&conf->loc);
2426 rc = func(conf->cmdline);
2427 loc_pop(&conf->loc);
2435 static int serial_parse(const char *devname)
2437 static int index = 0;
2440 if (strcmp(devname, "none") == 0)
2442 if (index == MAX_SERIAL_PORTS) {
2443 error_report("too many serial ports");
2446 snprintf(label, sizeof(label), "serial%d", index);
2447 serial_hds[index] = qemu_chr_new(label, devname);
2448 if (!serial_hds[index]) {
2449 error_report("could not connect serial device"
2450 " to character backend '%s'", devname);
2457 static int parallel_parse(const char *devname)
2459 static int index = 0;
2462 if (strcmp(devname, "none") == 0)
2464 if (index == MAX_PARALLEL_PORTS) {
2465 error_report("too many parallel ports");
2468 snprintf(label, sizeof(label), "parallel%d", index);
2469 parallel_hds[index] = qemu_chr_new(label, devname);
2470 if (!parallel_hds[index]) {
2471 error_report("could not connect parallel device"
2472 " to character backend '%s'", devname);
2479 static int virtcon_parse(const char *devname)
2481 QemuOptsList *device = qemu_find_opts("device");
2482 static int index = 0;
2484 QemuOpts *bus_opts, *dev_opts;
2486 if (strcmp(devname, "none") == 0)
2488 if (index == MAX_VIRTIO_CONSOLES) {
2489 error_report("too many virtio consoles");
2493 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2494 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2496 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2497 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2499 snprintf(label, sizeof(label), "virtcon%d", index);
2500 virtcon_hds[index] = qemu_chr_new(label, devname);
2501 if (!virtcon_hds[index]) {
2502 error_report("could not connect virtio console"
2503 " to character backend '%s'", devname);
2506 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2512 static int sclp_parse(const char *devname)
2514 QemuOptsList *device = qemu_find_opts("device");
2515 static int index = 0;
2519 if (strcmp(devname, "none") == 0) {
2522 if (index == MAX_SCLP_CONSOLES) {
2523 error_report("too many sclp consoles");
2527 assert(arch_type == QEMU_ARCH_S390X);
2529 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2530 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2532 snprintf(label, sizeof(label), "sclpcon%d", index);
2533 sclp_hds[index] = qemu_chr_new(label, devname);
2534 if (!sclp_hds[index]) {
2535 error_report("could not connect sclp console"
2536 " to character backend '%s'", devname);
2539 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2545 static int debugcon_parse(const char *devname)
2549 if (!qemu_chr_new("debugcon", devname)) {
2552 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2554 error_report("already have a debugcon device");
2557 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2558 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2562 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2564 const MachineClass *mc1 = a, *mc2 = b;
2567 if (mc1->family == NULL) {
2568 if (mc2->family == NULL) {
2569 /* Compare standalone machine types against each other; they sort
2570 * in increasing order.
2572 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2573 object_class_get_name(OBJECT_CLASS(mc2)));
2576 /* Standalone machine types sort after families. */
2580 if (mc2->family == NULL) {
2581 /* Families sort before standalone machine types. */
2585 /* Families sort between each other alphabetically increasingly. */
2586 res = strcmp(mc1->family, mc2->family);
2591 /* Within the same family, machine types sort in decreasing order. */
2592 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2593 object_class_get_name(OBJECT_CLASS(mc1)));
2596 static MachineClass *machine_parse(const char *name)
2598 MachineClass *mc = NULL;
2599 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2602 mc = find_machine(name);
2605 g_slist_free(machines);
2608 if (name && !is_help_option(name)) {
2609 error_report("unsupported machine type");
2610 error_printf("Use -machine help to list supported machines\n");
2612 printf("Supported machines are:\n");
2613 machines = g_slist_sort(machines, machine_class_cmp);
2614 for (el = machines; el; el = el->next) {
2615 MachineClass *mc = el->data;
2617 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2619 printf("%-20s %s%s\n", mc->name, mc->desc,
2620 mc->is_default ? " (default)" : "");
2624 g_slist_free(machines);
2625 exit(!name || !is_help_option(name));
2628 void qemu_add_exit_notifier(Notifier *notify)
2630 notifier_list_add(&exit_notifiers, notify);
2633 void qemu_remove_exit_notifier(Notifier *notify)
2635 notifier_remove(notify);
2638 static void qemu_run_exit_notifiers(void)
2640 notifier_list_notify(&exit_notifiers, NULL);
2643 static bool machine_init_done;
2645 void qemu_add_machine_init_done_notifier(Notifier *notify)
2647 notifier_list_add(&machine_init_done_notifiers, notify);
2648 if (machine_init_done) {
2649 notify->notify(notify, NULL);
2653 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2655 notifier_remove(notify);
2658 static void qemu_run_machine_init_done_notifiers(void)
2660 notifier_list_notify(&machine_init_done_notifiers, NULL);
2661 machine_init_done = true;
2664 static const QEMUOption *lookup_opt(int argc, char **argv,
2665 const char **poptarg, int *poptind)
2667 const QEMUOption *popt;
2668 int optind = *poptind;
2669 char *r = argv[optind];
2672 loc_set_cmdline(argv, optind, 1);
2674 /* Treat --foo the same as -foo. */
2677 popt = qemu_options;
2680 error_report("invalid option");
2683 if (!strcmp(popt->name, r + 1))
2687 if (popt->flags & HAS_ARG) {
2688 if (optind >= argc) {
2689 error_report("requires an argument");
2692 optarg = argv[optind++];
2693 loc_set_cmdline(argv, optind - 2, 2);
2704 static MachineClass *select_machine(void)
2706 MachineClass *machine_class = find_default_machine();
2711 loc_push_none(&loc);
2713 opts = qemu_get_machine_opts();
2714 qemu_opts_loc_restore(opts);
2716 optarg = qemu_opt_get(opts, "type");
2718 machine_class = machine_parse(optarg);
2721 if (!machine_class) {
2722 error_report("No machine specified, and there is no default");
2723 error_printf("Use -machine help to list supported machines\n");
2728 return machine_class;
2731 static int machine_set_property(void *opaque,
2732 const char *name, const char *value,
2735 Object *obj = OBJECT(opaque);
2736 Error *local_err = NULL;
2739 if (strcmp(name, "type") == 0) {
2743 qom_name = g_strdup(name);
2744 for (p = qom_name; *p; p++) {
2750 object_property_parse(obj, value, qom_name, &local_err);
2754 error_report_err(local_err);
2763 * Initial object creation happens before all other
2764 * QEMU data types are created. The majority of objects
2765 * can be created at this point. The rng-egd object
2766 * cannot be created here, as it depends on the chardev
2769 static bool object_create_initial(const char *type)
2771 if (g_str_equal(type, "rng-egd")) {
2776 * return false for concrete netfilters since
2777 * they depend on netdevs already existing
2779 if (g_str_equal(type, "filter-buffer") ||
2780 g_str_equal(type, "filter-dump") ||
2781 g_str_equal(type, "filter-mirror") ||
2782 g_str_equal(type, "filter-redirector") ||
2783 g_str_equal(type, "colo-compare") ||
2784 g_str_equal(type, "filter-rewriter") ||
2785 g_str_equal(type, "filter-replay")) {
2789 /* Memory allocation by backends needs to be done
2790 * after configure_accelerator() (due to the tcg_enabled()
2791 * checks at memory_region_init_*()).
2793 * Also, allocation of large amounts of memory may delay
2794 * chardev initialization for too long, and trigger timeouts
2795 * on software that waits for a monitor socket to be created
2798 if (g_str_has_prefix(type, "memory-backend-")) {
2807 * The remainder of object creation happens after the
2808 * creation of chardev, fsdev, net clients and device data types.
2810 static bool object_create_delayed(const char *type)
2812 return !object_create_initial(type);
2816 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2820 const char *mem_str;
2821 const char *maxmem_str, *slots_str;
2822 const ram_addr_t default_ram_size = mc->default_ram_size;
2823 QemuOpts *opts = qemu_find_opts_singleton("memory");
2826 loc_push_none(&loc);
2827 qemu_opts_loc_restore(opts);
2830 mem_str = qemu_opt_get(opts, "size");
2833 error_report("missing 'size' option value");
2837 sz = qemu_opt_get_size(opts, "size", ram_size);
2839 /* Fix up legacy suffix-less format */
2840 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2841 uint64_t overflow_check = sz;
2844 if ((sz >> 20) != overflow_check) {
2845 error_report("too large 'size' option value");
2851 /* backward compatibility behaviour for case "-m 0" */
2853 sz = default_ram_size;
2856 sz = QEMU_ALIGN_UP(sz, 8192);
2858 if (ram_size != sz) {
2859 error_report("ram size too large");
2863 /* store value for the future use */
2864 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2865 *maxram_size = ram_size;
2867 maxmem_str = qemu_opt_get(opts, "maxmem");
2868 slots_str = qemu_opt_get(opts, "slots");
2869 if (maxmem_str && slots_str) {
2872 sz = qemu_opt_get_size(opts, "maxmem", 0);
2873 slots = qemu_opt_get_number(opts, "slots", 0);
2874 if (sz < ram_size) {
2875 error_report("invalid value of -m option maxmem: "
2876 "maximum memory size (0x%" PRIx64 ") must be at least "
2877 "the initial memory size (0x" RAM_ADDR_FMT ")",
2880 } else if (sz > ram_size) {
2882 error_report("invalid value of -m option: maxmem was "
2883 "specified, but no hotplug slots were specified");
2887 error_report("invalid value of -m option maxmem: "
2888 "memory slots were specified but maximum memory size "
2889 "(0x%" PRIx64 ") is equal to the initial memory size "
2890 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2896 } else if ((!maxmem_str && slots_str) ||
2897 (maxmem_str && !slots_str)) {
2898 error_report("invalid -m option value: missing "
2899 "'%s' option", slots_str ? "maxmem" : "slots");
2906 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2910 g = g_malloc0(sizeof(*g));
2911 g->driver = qemu_opt_get(opts, "driver");
2912 g->property = qemu_opt_get(opts, "property");
2913 g->value = qemu_opt_get(opts, "value");
2914 g->user_provided = true;
2915 g->errp = &error_fatal;
2916 qdev_prop_register_global(g);
2920 static int qemu_read_default_config_file(void)
2924 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2925 if (ret < 0 && ret != -ENOENT) {
2932 int main(int argc, char **argv, char **envp)
2935 int snapshot, linux_boot;
2936 const char *initrd_filename;
2937 const char *kernel_filename, *kernel_cmdline;
2938 const char *boot_order = NULL;
2939 const char *boot_once = NULL;
2941 int cyls, heads, secs, translation;
2942 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2943 QemuOptsList *olist;
2946 const char *loadvm = NULL;
2947 MachineClass *machine_class;
2948 const char *cpu_model;
2949 const char *vga_model = NULL;
2950 const char *qtest_chrdev = NULL;
2951 const char *qtest_log = NULL;
2952 const char *pid_file = NULL;
2953 const char *incoming = NULL;
2954 bool defconfig = true;
2955 bool userconfig = true;
2956 bool nographic = false;
2957 DisplayType display_type = DT_DEFAULT;
2958 int display_remote = 0;
2959 const char *log_mask = NULL;
2960 const char *log_file = NULL;
2961 char *trace_file = NULL;
2962 ram_addr_t maxram_size;
2963 uint64_t ram_slots = 0;
2964 FILE *vmstate_dump_file = NULL;
2965 Error *main_loop_err = NULL;
2967 bool list_data_dirs = false;
2969 module_call_init(MODULE_INIT_TRACE);
2971 qemu_init_cpu_list();
2972 qemu_init_cpu_loop();
2973 qemu_mutex_lock_iothread();
2975 atexit(qemu_run_exit_notifiers);
2976 error_set_progname(argv[0]);
2977 qemu_init_exec_dir(argv[0]);
2979 module_call_init(MODULE_INIT_QOM);
2980 module_call_init(MODULE_INIT_QAPI);
2982 qemu_add_opts(&qemu_drive_opts);
2983 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2984 qemu_add_drive_opts(&qemu_common_drive_opts);
2985 qemu_add_drive_opts(&qemu_drive_opts);
2986 qemu_add_drive_opts(&bdrv_runtime_opts);
2987 qemu_add_opts(&qemu_chardev_opts);
2988 qemu_add_opts(&qemu_device_opts);
2989 qemu_add_opts(&qemu_netdev_opts);
2990 qemu_add_opts(&qemu_net_opts);
2991 qemu_add_opts(&qemu_rtc_opts);
2992 qemu_add_opts(&qemu_global_opts);
2993 qemu_add_opts(&qemu_mon_opts);
2994 qemu_add_opts(&qemu_trace_opts);
2995 qemu_add_opts(&qemu_option_rom_opts);
2996 qemu_add_opts(&qemu_machine_opts);
2997 qemu_add_opts(&qemu_mem_opts);
2998 qemu_add_opts(&qemu_smp_opts);
2999 qemu_add_opts(&qemu_boot_opts);
3000 qemu_add_opts(&qemu_sandbox_opts);
3001 qemu_add_opts(&qemu_add_fd_opts);
3002 qemu_add_opts(&qemu_object_opts);
3003 qemu_add_opts(&qemu_tpmdev_opts);
3004 qemu_add_opts(&qemu_realtime_opts);
3005 qemu_add_opts(&qemu_msg_opts);
3006 qemu_add_opts(&qemu_name_opts);
3007 qemu_add_opts(&qemu_numa_opts);
3008 qemu_add_opts(&qemu_icount_opts);
3009 qemu_add_opts(&qemu_semihosting_config_opts);
3010 qemu_add_opts(&qemu_fw_cfg_opts);
3011 module_call_init(MODULE_INIT_OPTS);
3015 if (qcrypto_init(&err) < 0) {
3016 error_reportf_err(err, "cannot initialize crypto: ");
3019 rtc_clock = QEMU_CLOCK_HOST;
3021 QLIST_INIT (&vm_change_state_head);
3022 os_setup_early_signal_handling();
3026 cyls = heads = secs = 0;
3027 translation = BIOS_ATA_TRANSLATION_AUTO;
3031 bdrv_init_with_whitelist();
3035 /* first pass of option parsing */
3037 while (optind < argc) {
3038 if (argv[optind][0] != '-') {
3042 const QEMUOption *popt;
3044 popt = lookup_opt(argc, argv, &optarg, &optind);
3045 switch (popt->index) {
3046 case QEMU_OPTION_nodefconfig:
3049 case QEMU_OPTION_nouserconfig:
3056 if (defconfig && userconfig) {
3057 if (qemu_read_default_config_file() < 0) {
3062 /* second pass of option parsing */
3067 if (argv[optind][0] != '-') {
3068 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3070 const QEMUOption *popt;
3072 popt = lookup_opt(argc, argv, &optarg, &optind);
3073 if (!(popt->arch_mask & arch_type)) {
3074 error_report("Option not supported for this target");
3077 switch(popt->index) {
3078 case QEMU_OPTION_no_kvm_irqchip: {
3079 olist = qemu_find_opts("machine");
3080 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3083 case QEMU_OPTION_cpu:
3084 /* hw initialization will check this */
3087 case QEMU_OPTION_hda:
3091 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3093 snprintf(buf, sizeof(buf),
3094 "%s,cyls=%d,heads=%d,secs=%d%s",
3095 HD_OPTS , cyls, heads, secs,
3096 translation == BIOS_ATA_TRANSLATION_LBA ?
3098 translation == BIOS_ATA_TRANSLATION_NONE ?
3099 ",trans=none" : "");
3100 drive_add(IF_DEFAULT, 0, optarg, buf);
3103 case QEMU_OPTION_hdb:
3104 case QEMU_OPTION_hdc:
3105 case QEMU_OPTION_hdd:
3106 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3109 case QEMU_OPTION_drive:
3110 if (drive_def(optarg) == NULL) {
3114 case QEMU_OPTION_set:
3115 if (qemu_set_option(optarg) != 0)
3118 case QEMU_OPTION_global:
3119 if (qemu_global_option(optarg) != 0)
3122 case QEMU_OPTION_mtdblock:
3123 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3125 case QEMU_OPTION_sd:
3126 drive_add(IF_SD, -1, optarg, SD_OPTS);
3128 case QEMU_OPTION_pflash:
3129 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3131 case QEMU_OPTION_snapshot:
3134 case QEMU_OPTION_hdachs:
3138 cyls = strtol(p, (char **)&p, 0);
3139 if (cyls < 1 || cyls > 16383)
3144 heads = strtol(p, (char **)&p, 0);
3145 if (heads < 1 || heads > 16)
3150 secs = strtol(p, (char **)&p, 0);
3151 if (secs < 1 || secs > 63)
3155 if (!strcmp(p, "large")) {
3156 translation = BIOS_ATA_TRANSLATION_LARGE;
3157 } else if (!strcmp(p, "rechs")) {
3158 translation = BIOS_ATA_TRANSLATION_RECHS;
3159 } else if (!strcmp(p, "none")) {
3160 translation = BIOS_ATA_TRANSLATION_NONE;
3161 } else if (!strcmp(p, "lba")) {
3162 translation = BIOS_ATA_TRANSLATION_LBA;
3163 } else if (!strcmp(p, "auto")) {
3164 translation = BIOS_ATA_TRANSLATION_AUTO;
3168 } else if (*p != '\0') {
3170 error_report("invalid physical CHS format");
3173 if (hda_opts != NULL) {
3174 qemu_opt_set_number(hda_opts, "cyls", cyls,
3176 qemu_opt_set_number(hda_opts, "heads", heads,
3178 qemu_opt_set_number(hda_opts, "secs", secs,
3180 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3181 qemu_opt_set(hda_opts, "trans", "large",
3183 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3184 qemu_opt_set(hda_opts, "trans", "rechs",
3186 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3187 qemu_opt_set(hda_opts, "trans", "lba",
3189 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3190 qemu_opt_set(hda_opts, "trans", "none",
3196 case QEMU_OPTION_numa:
3197 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3203 case QEMU_OPTION_display:
3204 display_type = select_display(optarg);
3206 case QEMU_OPTION_nographic:
3207 olist = qemu_find_opts("machine");
3208 qemu_opts_parse_noisily(olist, "graphics=off", false);
3210 display_type = DT_NONE;
3212 case QEMU_OPTION_curses:
3213 #ifdef CONFIG_CURSES
3214 display_type = DT_CURSES;
3216 error_report("curses support is disabled");
3220 case QEMU_OPTION_portrait:
3221 graphic_rotate = 90;
3223 case QEMU_OPTION_rotate:
3224 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3225 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3226 graphic_rotate != 180 && graphic_rotate != 270) {
3227 error_report("only 90, 180, 270 deg rotation is available");
3231 case QEMU_OPTION_kernel:
3232 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3235 case QEMU_OPTION_initrd:
3236 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3239 case QEMU_OPTION_append:
3240 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3243 case QEMU_OPTION_dtb:
3244 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3247 case QEMU_OPTION_cdrom:
3248 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3250 case QEMU_OPTION_boot:
3251 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3257 case QEMU_OPTION_fda:
3258 case QEMU_OPTION_fdb:
3259 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3262 case QEMU_OPTION_no_fd_bootchk:
3265 case QEMU_OPTION_netdev:
3267 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3271 case QEMU_OPTION_net:
3273 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3277 #ifdef CONFIG_LIBISCSI
3278 case QEMU_OPTION_iscsi:
3279 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3287 case QEMU_OPTION_tftp:
3288 error_report("The -tftp option is deprecated. "
3289 "Please use '-netdev user,tftp=...' instead.");
3290 legacy_tftp_prefix = optarg;
3292 case QEMU_OPTION_bootp:
3293 error_report("The -bootp option is deprecated. "
3294 "Please use '-netdev user,bootfile=...' instead.");
3295 legacy_bootp_filename = optarg;
3297 case QEMU_OPTION_redir:
3298 error_report("The -redir option is deprecated. "
3299 "Please use '-netdev user,hostfwd=...' instead.");
3300 if (net_slirp_redir(optarg) < 0)
3304 case QEMU_OPTION_bt:
3305 add_device_config(DEV_BT, optarg);
3307 case QEMU_OPTION_audio_help:
3311 case QEMU_OPTION_soundhw:
3312 select_soundhw (optarg);
3317 case QEMU_OPTION_version:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3329 case QEMU_OPTION_tpmdev:
3330 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3335 case QEMU_OPTION_mempath:
3338 case QEMU_OPTION_mem_prealloc:
3347 case QEMU_OPTION_DFILTER:
3348 qemu_set_dfilter_ranges(optarg, &error_fatal);
3351 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3353 case QEMU_OPTION_gdb:
3354 add_device_config(DEV_GDB, optarg);
3357 if (is_help_option(optarg)) {
3358 list_data_dirs = true;
3359 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3360 data_dir[data_dir_idx++] = optarg;
3363 case QEMU_OPTION_bios:
3364 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3367 case QEMU_OPTION_singlestep:
3374 keyboard_layout = optarg;
3376 case QEMU_OPTION_localtime:
3379 case QEMU_OPTION_vga:
3388 w = strtol(p, (char **)&p, 10);
3391 error_report("invalid resolution or depth");
3397 h = strtol(p, (char **)&p, 10);
3402 depth = strtol(p, (char **)&p, 10);
3403 if (depth != 8 && depth != 15 && depth != 16 &&
3404 depth != 24 && depth != 32)
3406 } else if (*p == '\0') {
3407 depth = graphic_depth;
3414 graphic_depth = depth;
3417 case QEMU_OPTION_echr:
3420 term_escape_char = strtol(optarg, &r, 0);
3422 printf("Bad argument to echr\n");
3425 case QEMU_OPTION_monitor:
3426 default_monitor = 0;
3427 if (strncmp(optarg, "none", 4)) {
3428 monitor_parse(optarg, "readline", false);
3431 case QEMU_OPTION_qmp:
3432 monitor_parse(optarg, "control", false);
3433 default_monitor = 0;
3435 case QEMU_OPTION_qmp_pretty:
3436 monitor_parse(optarg, "control", true);
3437 default_monitor = 0;
3439 case QEMU_OPTION_mon:
3440 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3445 default_monitor = 0;
3447 case QEMU_OPTION_chardev:
3448 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3454 case QEMU_OPTION_fsdev:
3455 olist = qemu_find_opts("fsdev");
3457 error_report("fsdev support is disabled");
3460 opts = qemu_opts_parse_noisily(olist, optarg, true);
3465 case QEMU_OPTION_virtfs: {
3468 const char *writeout, *sock_fd, *socket;
3470 olist = qemu_find_opts("virtfs");
3472 error_report("virtfs support is disabled");
3475 opts = qemu_opts_parse_noisily(olist, optarg, true);
3480 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3481 qemu_opt_get(opts, "mount_tag") == NULL) {
3482 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3485 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3486 qemu_opt_get(opts, "mount_tag"),
3489 error_report("duplicate fsdev id: %s",
3490 qemu_opt_get(opts, "mount_tag"));
3494 writeout = qemu_opt_get(opts, "writeout");
3496 #ifdef CONFIG_SYNC_FILE_RANGE
3497 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3499 error_report("writeout=immediate not supported "
3500 "on this platform");
3504 qemu_opt_set(fsdev, "fsdriver",
3505 qemu_opt_get(opts, "fsdriver"), &error_abort);
3506 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3508 qemu_opt_set(fsdev, "security_model",
3509 qemu_opt_get(opts, "security_model"),
3511 socket = qemu_opt_get(opts, "socket");
3513 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3515 sock_fd = qemu_opt_get(opts, "sock_fd");
3517 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3520 qemu_opt_set_bool(fsdev, "readonly",
3521 qemu_opt_get_bool(opts, "readonly", 0),
3523 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3525 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3526 qemu_opt_set(device, "fsdev",
3527 qemu_opt_get(opts, "mount_tag"), &error_abort);
3528 qemu_opt_set(device, "mount_tag",
3529 qemu_opt_get(opts, "mount_tag"), &error_abort);
3532 case QEMU_OPTION_virtfs_synth: {
3536 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3539 error_report("duplicate option: %s", "virtfs_synth");
3542 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3544 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3546 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3547 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3548 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3551 case QEMU_OPTION_serial:
3552 add_device_config(DEV_SERIAL, optarg);
3554 if (strncmp(optarg, "mon:", 4) == 0) {
3555 default_monitor = 0;
3558 case QEMU_OPTION_watchdog:
3560 error_report("only one watchdog option may be given");
3565 case QEMU_OPTION_watchdog_action:
3566 if (select_watchdog_action(optarg) == -1) {
3567 error_report("unknown -watchdog-action parameter");
3571 case QEMU_OPTION_virtiocon:
3572 add_device_config(DEV_VIRTCON, optarg);
3573 default_virtcon = 0;
3574 if (strncmp(optarg, "mon:", 4) == 0) {
3575 default_monitor = 0;
3578 case QEMU_OPTION_parallel:
3579 add_device_config(DEV_PARALLEL, optarg);
3580 default_parallel = 0;
3581 if (strncmp(optarg, "mon:", 4) == 0) {
3582 default_monitor = 0;
3585 case QEMU_OPTION_debugcon:
3586 add_device_config(DEV_DEBUGCON, optarg);
3588 case QEMU_OPTION_loadvm:
3591 case QEMU_OPTION_full_screen:
3594 case QEMU_OPTION_no_frame:
3597 case QEMU_OPTION_alt_grab:
3600 case QEMU_OPTION_ctrl_grab:
3603 case QEMU_OPTION_no_quit:
3606 case QEMU_OPTION_sdl:
3608 display_type = DT_SDL;
3611 error_report("SDL support is disabled");
3614 case QEMU_OPTION_pidfile:
3617 case QEMU_OPTION_win2k_hack:
3618 win2k_install_hack = 1;
3620 case QEMU_OPTION_rtc_td_hack: {
3621 static GlobalProperty slew_lost_ticks = {
3622 .driver = "mc146818rtc",
3623 .property = "lost_tick_policy",
3627 qdev_prop_register_global(&slew_lost_ticks);
3630 case QEMU_OPTION_acpitable:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3636 acpi_table_add(opts, &error_fatal);
3638 case QEMU_OPTION_smbios:
3639 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3644 smbios_entry_add(opts, &error_fatal);
3646 case QEMU_OPTION_fwcfg:
3647 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3653 case QEMU_OPTION_enable_kvm:
3654 olist = qemu_find_opts("machine");
3655 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3657 case QEMU_OPTION_enable_hax:
3658 olist = qemu_find_opts("machine");
3659 qemu_opts_parse_noisily(olist, "accel=hax", false);
3662 case QEMU_OPTION_machine:
3663 olist = qemu_find_opts("machine");
3664 opts = qemu_opts_parse_noisily(olist, optarg, true);
3669 case QEMU_OPTION_no_kvm:
3670 olist = qemu_find_opts("machine");
3671 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3673 case QEMU_OPTION_no_kvm_pit: {
3674 error_report("warning: ignoring deprecated option");
3677 case QEMU_OPTION_no_kvm_pit_reinjection: {
3678 static GlobalProperty kvm_pit_lost_tick_policy = {
3679 .driver = "kvm-pit",
3680 .property = "lost_tick_policy",
3684 error_report("warning: deprecated, replaced by "
3685 "-global kvm-pit.lost_tick_policy=discard");
3686 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3689 case QEMU_OPTION_usb:
3690 olist = qemu_find_opts("machine");
3691 qemu_opts_parse_noisily(olist, "usb=on", false);
3693 case QEMU_OPTION_usbdevice:
3694 olist = qemu_find_opts("machine");
3695 qemu_opts_parse_noisily(olist, "usb=on", false);
3696 add_device_config(DEV_USB, optarg);
3698 case QEMU_OPTION_device:
3699 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3704 case QEMU_OPTION_smp:
3705 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3710 case QEMU_OPTION_vnc:
3711 vnc_parse(optarg, &error_fatal);
3713 case QEMU_OPTION_no_acpi:
3716 case QEMU_OPTION_no_hpet:
3719 case QEMU_OPTION_balloon:
3720 if (balloon_parse(optarg) < 0) {
3721 error_report("unknown -balloon argument %s", optarg);
3725 case QEMU_OPTION_no_reboot:
3728 case QEMU_OPTION_no_shutdown:
3731 case QEMU_OPTION_show_cursor:
3734 case QEMU_OPTION_uuid:
3735 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3736 error_report("failed to parse UUID string: wrong format");
3739 qemu_uuid_set = true;
3741 case QEMU_OPTION_option_rom:
3742 if (nb_option_roms >= MAX_OPTION_ROMS) {
3743 error_report("too many option ROMs");
3746 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3751 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3752 option_rom[nb_option_roms].bootindex =
3753 qemu_opt_get_number(opts, "bootindex", -1);
3754 if (!option_rom[nb_option_roms].name) {
3755 error_report("Option ROM file is not specified");
3760 case QEMU_OPTION_semihosting:
3761 semihosting.enabled = true;
3762 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3764 case QEMU_OPTION_semihosting_config:
3765 semihosting.enabled = true;
3766 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3769 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3771 const char *target = qemu_opt_get(opts, "target");
3772 if (target != NULL) {
3773 if (strcmp("native", target) == 0) {
3774 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3775 } else if (strcmp("gdb", target) == 0) {
3776 semihosting.target = SEMIHOSTING_TARGET_GDB;
3777 } else if (strcmp("auto", target) == 0) {
3778 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3780 error_report("unsupported semihosting-config %s",
3785 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3787 /* Set semihosting argument count and vector */
3788 qemu_opt_foreach(opts, add_semihosting_arg,
3789 &semihosting, NULL);
3791 error_report("unsupported semihosting-config %s", optarg);
3795 case QEMU_OPTION_tdf:
3796 error_report("warning: ignoring deprecated option");
3798 case QEMU_OPTION_name:
3799 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3805 case QEMU_OPTION_prom_env:
3806 if (nb_prom_envs >= MAX_PROM_ENVS) {
3807 error_report("too many prom variables");
3810 prom_envs[nb_prom_envs] = optarg;
3813 case QEMU_OPTION_old_param:
3816 case QEMU_OPTION_clock:
3817 /* Clock options no longer exist. Keep this option for
3818 * backward compatibility.
3821 case QEMU_OPTION_startdate:
3822 configure_rtc_date_offset(optarg, 1);
3824 case QEMU_OPTION_rtc:
3825 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3830 configure_rtc(opts);
3832 case QEMU_OPTION_tb_size:
3833 tcg_tb_size = strtol(optarg, NULL, 0);
3834 if (tcg_tb_size < 0) {
3838 case QEMU_OPTION_icount:
3839 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3845 case QEMU_OPTION_incoming:
3847 runstate_set(RUN_STATE_INMIGRATE);
3851 case QEMU_OPTION_only_migratable:
3852 only_migratable = 1;
3854 case QEMU_OPTION_nodefaults:
3857 case QEMU_OPTION_xen_domid:
3858 if (!(xen_available())) {
3859 error_report("Option not supported for this target");
3862 xen_domid = atoi(optarg);
3864 case QEMU_OPTION_xen_create:
3865 if (!(xen_available())) {
3866 error_report("Option not supported for this target");
3869 xen_mode = XEN_CREATE;
3871 case QEMU_OPTION_xen_attach:
3872 if (!(xen_available())) {
3873 error_report("Option not supported for this target");
3876 xen_mode = XEN_ATTACH;
3878 case QEMU_OPTION_trace:
3880 trace_file = trace_opt_parse(optarg);
3882 case QEMU_OPTION_readconfig:
3884 int ret = qemu_read_config_file(optarg);
3886 error_report("read config %s: %s", optarg,
3892 case QEMU_OPTION_spice:
3893 olist = qemu_find_opts("spice");
3895 error_report("spice support is disabled");
3898 opts = qemu_opts_parse_noisily(olist, optarg, false);
3904 case QEMU_OPTION_writeconfig:
3907 if (strcmp(optarg, "-") == 0) {
3910 fp = fopen(optarg, "w");
3912 error_report("open %s: %s", optarg,
3917 qemu_config_write(fp);
3923 case QEMU_OPTION_qtest:
3924 qtest_chrdev = optarg;
3926 case QEMU_OPTION_qtest_log:
3929 case QEMU_OPTION_sandbox:
3930 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3936 case QEMU_OPTION_add_fd:
3938 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3944 error_report("File descriptor passing is disabled on this "
3949 case QEMU_OPTION_object:
3950 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3956 case QEMU_OPTION_realtime:
3957 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3962 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3964 case QEMU_OPTION_msg:
3965 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3970 configure_msg(opts);
3972 case QEMU_OPTION_dump_vmstate:
3973 if (vmstate_dump_file) {
3974 error_report("only one '-dump-vmstate' "
3975 "option may be given");
3978 vmstate_dump_file = fopen(optarg, "w");
3979 if (vmstate_dump_file == NULL) {
3980 error_report("open %s: %s", optarg, strerror(errno));
3985 os_parse_cmd_args(popt->index, optarg);
3990 * Clear error location left behind by the loop.
3991 * Best done right after the loop. Do not insert code here!
3995 replay_configure(icount_opts);
3997 machine_class = select_machine();
3999 set_memory_options(&ram_slots, &maxram_size, machine_class);
4003 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4004 error_report("could not acquire pid file: %s", strerror(errno));
4008 if (qemu_init_main_loop(&main_loop_err)) {
4009 error_report_err(main_loop_err);
4013 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4014 parse_sandbox, NULL, NULL)) {
4018 if (qemu_opts_foreach(qemu_find_opts("name"),
4019 parse_name, NULL, NULL)) {
4024 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4025 parse_add_fd, NULL, NULL)) {
4029 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4030 cleanup_add_fd, NULL, NULL)) {
4035 current_machine = MACHINE(object_new(object_class_get_name(
4036 OBJECT_CLASS(machine_class))));
4037 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4040 object_property_add_child(object_get_root(), "machine",
4041 OBJECT(current_machine), &error_abort);
4043 if (machine_class->minimum_page_bits) {
4044 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4045 /* This would be a board error: specifying a minimum smaller than
4046 * a target's compile-time fixed setting.
4048 g_assert_not_reached();
4052 cpu_exec_init_all();
4054 if (machine_class->hw_version) {
4055 qemu_set_hw_version(machine_class->hw_version);
4058 if (cpu_model && is_help_option(cpu_model)) {
4059 list_cpus(stdout, &fprintf, cpu_model);
4063 if (!trace_init_backends()) {
4066 trace_init_file(trace_file);
4068 /* Open the logfile at this point and set the log mask if necessary.
4071 qemu_set_log_filename(log_file, &error_fatal);
4076 mask = qemu_str_to_log_mask(log_mask);
4078 qemu_print_log_usage(stdout);
4086 /* If no data_dir is specified then try to find it relative to the
4088 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4089 data_dir[data_dir_idx] = os_find_datadir();
4090 if (data_dir[data_dir_idx] != NULL) {
4094 /* If all else fails use the install path specified when building. */
4095 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4096 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4099 /* -L help lists the data directories and exits. */
4100 if (list_data_dirs) {
4101 for (i = 0; i < data_dir_idx; i++) {
4102 printf("%s\n", data_dir[i]);
4107 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4109 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4110 if (max_cpus > machine_class->max_cpus) {
4111 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4112 "supported by machine '%s' (%d)", max_cpus,
4113 machine_class->name, machine_class->max_cpus);
4118 * Get the default machine options from the machine if it is not already
4119 * specified either by the configuration file or by the command line.
4121 if (machine_class->default_machine_opts) {
4122 qemu_opts_set_defaults(qemu_find_opts("machine"),
4123 machine_class->default_machine_opts, 0);
4126 qemu_opts_foreach(qemu_find_opts("device"),
4127 default_driver_check, NULL, NULL);
4128 qemu_opts_foreach(qemu_find_opts("global"),
4129 default_driver_check, NULL, NULL);
4131 if (!vga_model && !default_vga) {
4132 vga_interface_type = VGA_DEVICE;
4134 if (!has_defaults || machine_class->no_serial) {
4137 if (!has_defaults || machine_class->no_parallel) {
4138 default_parallel = 0;
4140 if (!has_defaults || !machine_class->use_virtcon) {
4141 default_virtcon = 0;
4143 if (!has_defaults || !machine_class->use_sclp) {
4146 if (!has_defaults || machine_class->no_floppy) {
4149 if (!has_defaults || machine_class->no_cdrom) {
4152 if (!has_defaults || machine_class->no_sdcard) {
4155 if (!has_defaults) {
4156 default_monitor = 0;
4161 if (is_daemonized()) {
4162 /* According to documentation and historically, -nographic redirects
4163 * serial port, parallel port and monitor to stdio, which does not work
4164 * with -daemonize. We can redirect these to null instead, but since
4165 * -nographic is legacy, let's just error out.
4166 * We disallow -nographic only if all other ports are not redirected
4167 * explicitly, to not break existing legacy setups which uses
4168 * -nographic _and_ redirects all ports explicitly - this is valid
4169 * usage, -nographic is just a no-op in this case.
4172 && (default_parallel || default_serial
4173 || default_monitor || default_virtcon)) {
4174 error_report("-nographic cannot be used with -daemonize");
4177 #ifdef CONFIG_CURSES
4178 if (display_type == DT_CURSES) {
4179 error_report("curses display cannot be used with -daemonize");
4186 if (default_parallel)
4187 add_device_config(DEV_PARALLEL, "null");
4188 if (default_serial && default_monitor) {
4189 add_device_config(DEV_SERIAL, "mon:stdio");
4190 } else if (default_virtcon && default_monitor) {
4191 add_device_config(DEV_VIRTCON, "mon:stdio");
4192 } else if (default_sclp && default_monitor) {
4193 add_device_config(DEV_SCLP, "mon:stdio");
4196 add_device_config(DEV_SERIAL, "stdio");
4197 if (default_virtcon)
4198 add_device_config(DEV_VIRTCON, "stdio");
4200 add_device_config(DEV_SCLP, "stdio");
4202 if (default_monitor)
4203 monitor_parse("stdio", "readline", false);
4207 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4208 if (default_parallel)
4209 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4210 if (default_monitor)
4211 monitor_parse("vc:80Cx24C", "readline", false);
4212 if (default_virtcon)
4213 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4215 add_device_config(DEV_SCLP, "vc:80Cx24C");
4219 #if defined(CONFIG_VNC)
4220 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4224 if (display_type == DT_DEFAULT && !display_remote) {
4225 #if defined(CONFIG_GTK)
4226 display_type = DT_GTK;
4227 #elif defined(CONFIG_SDL)
4228 display_type = DT_SDL;
4229 #elif defined(CONFIG_COCOA)
4230 display_type = DT_COCOA;
4231 #elif defined(CONFIG_VNC)
4232 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4234 display_type = DT_NONE;
4238 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4239 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4240 "for SDL, ignoring option");
4242 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4243 error_report("-no-quit is only valid for GTK and SDL, "
4247 if (display_type == DT_GTK) {
4248 early_gtk_display_init(request_opengl);
4251 if (display_type == DT_SDL) {
4252 sdl_display_early_init(request_opengl);
4255 qemu_console_early_init();
4257 if (request_opengl == 1 && display_opengl == 0) {
4258 #if defined(CONFIG_OPENGL)
4259 error_report("OpenGL is not supported by the display");
4261 error_report("OpenGL support is disabled");
4269 if (qemu_opts_foreach(qemu_find_opts("object"),
4270 user_creatable_add_opts_foreach,
4271 object_create_initial, NULL)) {
4275 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4276 chardev_init_func, NULL, NULL)) {
4280 #ifdef CONFIG_VIRTFS
4281 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4282 fsdev_init_func, NULL, NULL)) {
4287 if (qemu_opts_foreach(qemu_find_opts("device"),
4288 device_help_func, NULL, NULL)) {
4292 machine_opts = qemu_get_machine_opts();
4293 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4295 object_unref(OBJECT(current_machine));
4299 configure_accelerator(current_machine);
4302 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4305 machine_opts = qemu_get_machine_opts();
4306 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4307 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4308 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4309 bios_name = qemu_opt_get(machine_opts, "firmware");
4311 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4313 boot_order = qemu_opt_get(opts, "order");
4315 validate_bootdevices(boot_order, &error_fatal);
4318 boot_once = qemu_opt_get(opts, "once");
4320 validate_bootdevices(boot_once, &error_fatal);
4323 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4324 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4328 boot_order = machine_class->default_boot_order;
4331 if (!kernel_cmdline) {
4332 kernel_cmdline = "";
4333 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4336 linux_boot = (kernel_filename != NULL);
4338 if (!linux_boot && *kernel_cmdline != '\0') {
4339 error_report("-append only allowed with -kernel option");
4343 if (!linux_boot && initrd_filename != NULL) {
4344 error_report("-initrd only allowed with -kernel option");
4348 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4349 /* fall back to the -kernel/-append */
4350 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4353 os_set_line_buffering();
4355 /* spice needs the timers to be initialized by this point */
4360 if (!tcg_enabled()) {
4361 error_report("-icount is not allowed with hardware virtualization");
4364 configure_icount(icount_opts, &error_abort);
4365 qemu_opts_del(icount_opts);
4369 QemuOptsList *net = qemu_find_opts("net");
4370 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4372 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4378 if (net_init_clients() < 0) {
4382 if (qemu_opts_foreach(qemu_find_opts("object"),
4383 user_creatable_add_opts_foreach,
4384 object_create_delayed, NULL)) {
4389 if (tpm_init() < 0) {
4394 /* init the bluetooth world */
4395 if (foreach_device_config(DEV_BT, bt_parse))
4398 if (!xen_enabled()) {
4399 /* On 32-bit hosts, QEMU is limited by virtual address space */
4400 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4401 error_report("at most 2047 MB RAM can be simulated");
4409 /* If the currently selected machine wishes to override the units-per-bus
4410 * property of its default HBA interface type, do so now. */
4411 if (machine_class->units_per_default_bus) {
4412 override_max_devs(machine_class->block_default_type,
4413 machine_class->units_per_default_bus);
4416 /* open the virtual block devices */
4417 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4418 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4421 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4422 &machine_class->block_default_type, NULL)) {
4426 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4428 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4429 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4431 parse_numa_opts(machine_class);
4433 if (qemu_opts_foreach(qemu_find_opts("mon"),
4434 mon_init_func, NULL, NULL)) {
4438 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4440 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4442 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4444 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4447 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4450 /* If no default VGA is requested, the default is "none". */
4452 if (machine_class->default_display) {
4453 vga_model = machine_class->default_display;
4454 } else if (vga_interface_available(VGA_CIRRUS)) {
4455 vga_model = "cirrus";
4456 } else if (vga_interface_available(VGA_STD)) {
4461 select_vgahw(vga_model);
4465 i = select_watchdog(watchdog);
4467 exit (i == 1 ? 1 : 0);
4470 machine_register_compat_props(current_machine);
4472 qemu_opts_foreach(qemu_find_opts("global"),
4473 global_init_func, NULL, NULL);
4475 /* This checkpoint is required by replay to separate prior clock
4476 reading from the other reads, because timer polling functions query
4477 clock values from the log. */
4478 replay_checkpoint(CHECKPOINT_INIT);
4479 qdev_machine_init();
4481 current_machine->ram_size = ram_size;
4482 current_machine->maxram_size = maxram_size;
4483 current_machine->ram_slots = ram_slots;
4484 current_machine->boot_order = boot_order;
4485 current_machine->cpu_model = cpu_model;
4487 machine_class->init(current_machine);
4493 cpu_synchronize_all_post_init();
4495 if (hax_enabled()) {
4499 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4500 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4504 /* init USB devices */
4505 if (machine_usb(current_machine)) {
4506 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4510 /* Check if IGD GFX passthrough. */
4513 /* init generic devices */
4514 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4515 if (qemu_opts_foreach(qemu_find_opts("device"),
4516 device_init_func, NULL, NULL)) {
4520 numa_post_machine_init();
4522 rom_reset_order_override();
4524 /* Did we create any drives that we failed to create a device for? */
4525 drive_check_orphaned();
4527 /* Don't warn about the default network setup that you get if
4528 * no command line -net or -netdev options are specified. There
4529 * are two cases that we would otherwise complain about:
4530 * (1) board doesn't support a NIC but the implicit "-net nic"
4532 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4533 * sets up a nic that isn't connected to anything.
4536 net_check_clients();
4541 qemu_boot_set(boot_once, &error_fatal);
4542 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4545 ds = init_displaystate();
4547 /* init local displays */
4548 switch (display_type) {
4550 curses_display_init(ds, full_screen);
4553 sdl_display_init(ds, full_screen, no_frame);
4556 cocoa_display_init(ds, full_screen);
4559 gtk_display_init(ds, full_screen, grab_on_hover);
4565 /* must be after terminal init, SDL library changes signal handlers */
4566 os_setup_signal_handling();
4568 /* init remote displays */
4570 qemu_opts_foreach(qemu_find_opts("vnc"),
4571 vnc_init_func, NULL, NULL);
4575 qemu_spice_display_init();
4578 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4582 qdev_machine_creation_done();
4584 /* TODO: once all bus devices are qdevified, this should be done
4585 * when bus is created by qdev.c */
4586 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4587 qemu_run_machine_init_done_notifiers();
4589 if (rom_check_and_register_reset() != 0) {
4590 error_report("rom check and register reset failed");
4596 /* This checkpoint is required by replay to separate prior clock
4597 reading from the other reads, because timer polling functions query
4598 clock values from the log. */
4599 replay_checkpoint(CHECKPOINT_RESET);
4600 qemu_system_reset(VMRESET_SILENT);
4601 register_global_state();
4602 if (replay_mode != REPLAY_MODE_NONE) {
4603 replay_vmstate_init();
4604 } else if (loadvm) {
4605 if (load_vmstate(loadvm) < 0) {
4610 qdev_prop_check_globals();
4611 if (vmstate_dump_file) {
4613 dump_vmstate_json_to_file(vmstate_dump_file);
4618 Error *local_err = NULL;
4619 qemu_start_incoming_migration(incoming, &local_err);
4621 error_reportf_err(local_err, "-incoming %s: ", incoming);
4624 } else if (autostart) {
4631 replay_disable_events();
4632 iothread_stop_all();
4638 /* vhost-user must be cleaned up before chardevs. */