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/xen/xen.h"
70 #include "hw/loader.h"
71 #include "monitor/qdev.h"
72 #include "sysemu/bt.h"
74 #include "net/slirp.h"
75 #include "monitor/monitor.h"
76 #include "ui/console.h"
78 #include "sysemu/sysemu.h"
79 #include "sysemu/numa.h"
80 #include "exec/gdbstub.h"
81 #include "qemu/timer.h"
82 #include "sysemu/char.h"
83 #include "qemu/bitmap.h"
85 #include "sysemu/blockdev.h"
86 #include "hw/block/block.h"
87 #include "migration/block.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "audio/audio.h"
91 #include "migration/migration.h"
92 #include "sysemu/cpus.h"
93 #include "sysemu/kvm.h"
94 #include "qapi/qmp/qjson.h"
95 #include "qemu/option.h"
96 #include "qemu/config-file.h"
97 #include "qemu-options.h"
98 #include "qmp-commands.h"
99 #include "qemu/main-loop.h"
101 #include "fsdev/qemu-fsdev.h"
103 #include "sysemu/qtest.h"
105 #include "disas/disas.h"
108 #include "slirp/libslirp.h"
111 #include "trace/control.h"
112 #include "qemu/queue.h"
113 #include "sysemu/cpus.h"
114 #include "sysemu/arch_init.h"
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "qapi-event.h"
121 #include "exec/semihost.h"
122 #include "crypto/init.h"
123 #include "sysemu/replay.h"
124 #include "qapi/qmp/qerror.h"
125 #include "sysemu/iothread.h"
127 #define MAX_VIRTIO_CONSOLES 1
128 #define MAX_SCLP_CONSOLES 1
130 static const char *data_dir[16];
131 static int data_dir_idx;
132 const char *bios_name = NULL;
133 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
134 int request_opengl = -1;
136 const char* keyboard_layout = NULL;
138 const char *mem_path = NULL;
139 int mem_prealloc = 0; /* force preallocation of physical target memory */
140 bool enable_mlock = false;
142 NICInfo nd_table[MAX_NICS];
144 static int rtc_utc = 1;
145 static int rtc_date_offset = -1; /* -1 means no change */
146 QEMUClockType rtc_clock;
147 int vga_interface_type = VGA_NONE;
148 static int full_screen = 0;
149 static int no_frame = 0;
151 static bool grab_on_hover;
152 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
153 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
154 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
155 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
156 int win2k_install_hack = 0;
162 int acpi_enabled = 1;
165 static int no_reboot;
168 int graphic_rotate = 0;
169 const char *watchdog;
170 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
173 const char *qemu_name;
176 unsigned int nb_prom_envs = 0;
177 const char *prom_envs[MAX_PROM_ENVS];
180 uint8_t *boot_splash_filedata;
181 size_t boot_splash_filedata_size;
182 uint8_t qemu_extra_params_fw[2];
184 int icount_align_option;
186 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
187 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 static NotifierList exit_notifiers =
193 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
195 static NotifierList machine_init_done_notifiers =
196 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
200 enum xen_mode xen_mode = XEN_EMULATE;
202 static int has_defaults = 1;
203 static int default_serial = 1;
204 static int default_parallel = 1;
205 static int default_virtcon = 1;
206 static int default_sclp = 1;
207 static int default_monitor = 1;
208 static int default_floppy = 1;
209 static int default_cdrom = 1;
210 static int default_sdcard = 1;
211 static int default_vga = 1;
212 static int default_net = 1;
218 { .driver = "isa-serial", .flag = &default_serial },
219 { .driver = "isa-parallel", .flag = &default_parallel },
220 { .driver = "isa-fdc", .flag = &default_floppy },
221 { .driver = "floppy", .flag = &default_floppy },
222 { .driver = "ide-cd", .flag = &default_cdrom },
223 { .driver = "ide-hd", .flag = &default_cdrom },
224 { .driver = "ide-drive", .flag = &default_cdrom },
225 { .driver = "scsi-cd", .flag = &default_cdrom },
226 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
227 { .driver = "virtio-serial", .flag = &default_virtcon },
228 { .driver = "VGA", .flag = &default_vga },
229 { .driver = "isa-vga", .flag = &default_vga },
230 { .driver = "cirrus-vga", .flag = &default_vga },
231 { .driver = "isa-cirrus-vga", .flag = &default_vga },
232 { .driver = "vmware-svga", .flag = &default_vga },
233 { .driver = "qxl-vga", .flag = &default_vga },
234 { .driver = "virtio-vga", .flag = &default_vga },
237 static QemuOptsList qemu_rtc_opts = {
239 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
243 .type = QEMU_OPT_STRING,
246 .type = QEMU_OPT_STRING,
249 .type = QEMU_OPT_STRING,
251 { /* end of list */ }
255 static QemuOptsList qemu_sandbox_opts = {
257 .implied_opt_name = "enable",
258 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
262 .type = QEMU_OPT_BOOL,
264 { /* end of list */ }
268 static QemuOptsList qemu_option_rom_opts = {
269 .name = "option-rom",
270 .implied_opt_name = "romfile",
271 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
275 .type = QEMU_OPT_NUMBER,
278 .type = QEMU_OPT_STRING,
280 { /* end of list */ }
284 static QemuOptsList qemu_machine_opts = {
286 .implied_opt_name = "type",
288 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
291 * no elements => accept any
292 * sanity checking will happen later
293 * when setting machine properties
299 static QemuOptsList qemu_boot_opts = {
301 .implied_opt_name = "order",
303 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
307 .type = QEMU_OPT_STRING,
310 .type = QEMU_OPT_STRING,
313 .type = QEMU_OPT_BOOL,
316 .type = QEMU_OPT_STRING,
318 .name = "splash-time",
319 .type = QEMU_OPT_STRING,
321 .name = "reboot-timeout",
322 .type = QEMU_OPT_STRING,
325 .type = QEMU_OPT_BOOL,
331 static QemuOptsList qemu_add_fd_opts = {
333 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
337 .type = QEMU_OPT_NUMBER,
338 .help = "file descriptor of which a duplicate is added to fd set",
341 .type = QEMU_OPT_NUMBER,
342 .help = "ID of the fd set to add fd to",
345 .type = QEMU_OPT_STRING,
346 .help = "free-form string used to describe fd",
348 { /* end of list */ }
352 static QemuOptsList qemu_object_opts = {
354 .implied_opt_name = "qom-type",
355 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
361 static QemuOptsList qemu_tpmdev_opts = {
363 .implied_opt_name = "type",
364 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
366 /* options are defined in the TPM backends */
367 { /* end of list */ }
371 static QemuOptsList qemu_realtime_opts = {
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
377 .type = QEMU_OPT_BOOL,
379 { /* end of list */ }
383 static QemuOptsList qemu_msg_opts = {
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
389 .type = QEMU_OPT_BOOL,
391 { /* end of list */ }
395 static QemuOptsList qemu_name_opts = {
397 .implied_opt_name = "guest",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
403 .type = QEMU_OPT_STRING,
404 .help = "Sets the name of the guest.\n"
405 "This name will be displayed in the SDL window caption.\n"
406 "The name will also be used for the VNC server",
409 .type = QEMU_OPT_STRING,
410 .help = "Sets the name of the QEMU process, as shown in top etc",
412 .name = "debug-threads",
413 .type = QEMU_OPT_BOOL,
414 .help = "When enabled, name the individual threads; defaults off.\n"
415 "NOTE: The thread names are for debugging and not a\n"
418 { /* End of list */ }
422 static QemuOptsList qemu_mem_opts = {
424 .implied_opt_name = "size",
425 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
430 .type = QEMU_OPT_SIZE,
434 .type = QEMU_OPT_NUMBER,
438 .type = QEMU_OPT_SIZE,
440 { /* end of list */ }
444 static QemuOptsList qemu_icount_opts = {
446 .implied_opt_name = "shift",
448 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
452 .type = QEMU_OPT_STRING,
455 .type = QEMU_OPT_BOOL,
458 .type = QEMU_OPT_BOOL,
461 .type = QEMU_OPT_STRING,
464 .type = QEMU_OPT_STRING,
466 { /* end of list */ }
470 static QemuOptsList qemu_semihosting_config_opts = {
471 .name = "semihosting-config",
472 .implied_opt_name = "enable",
473 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
477 .type = QEMU_OPT_BOOL,
480 .type = QEMU_OPT_STRING,
483 .type = QEMU_OPT_STRING,
485 { /* end of list */ }
489 static QemuOptsList qemu_fw_cfg_opts = {
491 .implied_opt_name = "name",
492 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
496 .type = QEMU_OPT_STRING,
497 .help = "Sets the fw_cfg name of the blob to be inserted",
500 .type = QEMU_OPT_STRING,
501 .help = "Sets the name of the file from which\n"
502 "the fw_cfg blob will be loaded",
505 .type = QEMU_OPT_STRING,
506 .help = "Sets content of the blob to be inserted from a string",
508 { /* end of list */ }
512 #ifdef CONFIG_LIBISCSI
513 static QemuOptsList qemu_iscsi_opts = {
515 .head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head),
519 .type = QEMU_OPT_STRING,
520 .help = "username for CHAP authentication to target",
523 .type = QEMU_OPT_STRING,
524 .help = "password for CHAP authentication to target",
526 .name = "password-secret",
527 .type = QEMU_OPT_STRING,
528 .help = "ID of the secret providing password for CHAP "
529 "authentication to target",
531 .name = "header-digest",
532 .type = QEMU_OPT_STRING,
533 .help = "HeaderDigest setting. "
534 "{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
536 .name = "initiator-name",
537 .type = QEMU_OPT_STRING,
538 .help = "Initiator iqn name to use when connecting",
541 .type = QEMU_OPT_NUMBER,
542 .help = "Request timeout in seconds (default 0 = no timeout)",
544 { /* end of list */ }
550 * Get machine options
552 * Returns: machine options (never null).
554 QemuOpts *qemu_get_machine_opts(void)
556 return qemu_find_opts_singleton("machine");
559 const char *qemu_get_vm_name(void)
564 static void res_free(void)
566 g_free(boot_splash_filedata);
567 boot_splash_filedata = NULL;
570 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
572 const char *driver = qemu_opt_get(opts, "driver");
577 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
578 if (strcmp(default_list[i].driver, driver) != 0)
580 *(default_list[i].flag) = 0;
585 /***********************************************************/
588 static RunState current_run_state = RUN_STATE_PRELAUNCH;
590 /* We use RUN_STATE__MAX but any invalid value will do */
591 static RunState vmstop_requested = RUN_STATE__MAX;
592 static QemuMutex vmstop_lock;
597 } RunStateTransition;
599 static const RunStateTransition runstate_transitions_def[] = {
601 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
602 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
606 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
607 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
608 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
609 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
610 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
612 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
613 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
615 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
617 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
618 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
622 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
625 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
626 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
629 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
630 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
634 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
637 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
638 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
639 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
642 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
644 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
645 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
646 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
647 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
648 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
650 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
651 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
652 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
653 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
655 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
657 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
658 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
661 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
662 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
663 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
664 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
667 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
668 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
669 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
671 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
672 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
673 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
675 { RUN_STATE__MAX, RUN_STATE__MAX },
678 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
680 bool runstate_check(RunState state)
682 return current_run_state == state;
685 bool runstate_store(char *str, size_t size)
687 const char *state = RunState_lookup[current_run_state];
688 size_t len = strlen(state) + 1;
693 memcpy(str, state, len);
697 static void runstate_init(void)
699 const RunStateTransition *p;
701 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
702 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
703 runstate_valid_transitions[p->from][p->to] = true;
706 qemu_mutex_init(&vmstop_lock);
709 /* This function will abort() on invalid state transitions */
710 void runstate_set(RunState new_state)
712 assert(new_state < RUN_STATE__MAX);
714 if (current_run_state == new_state) {
718 if (!runstate_valid_transitions[current_run_state][new_state]) {
719 error_report("invalid runstate transition: '%s' -> '%s'",
720 RunState_lookup[current_run_state],
721 RunState_lookup[new_state]);
724 trace_runstate_set(new_state);
725 current_run_state = new_state;
728 int runstate_is_running(void)
730 return runstate_check(RUN_STATE_RUNNING);
733 bool runstate_needs_reset(void)
735 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
736 runstate_check(RUN_STATE_SHUTDOWN);
739 StatusInfo *qmp_query_status(Error **errp)
741 StatusInfo *info = g_malloc0(sizeof(*info));
743 info->running = runstate_is_running();
744 info->singlestep = singlestep;
745 info->status = current_run_state;
750 static bool qemu_vmstop_requested(RunState *r)
752 qemu_mutex_lock(&vmstop_lock);
753 *r = vmstop_requested;
754 vmstop_requested = RUN_STATE__MAX;
755 qemu_mutex_unlock(&vmstop_lock);
756 return *r < RUN_STATE__MAX;
759 void qemu_system_vmstop_request_prepare(void)
761 qemu_mutex_lock(&vmstop_lock);
764 void qemu_system_vmstop_request(RunState state)
766 vmstop_requested = state;
767 qemu_mutex_unlock(&vmstop_lock);
775 qemu_vmstop_requested(&requested);
776 if (runstate_is_running() && requested == RUN_STATE__MAX) {
780 /* Ensure that a STOP/RESUME pair of events is emitted if a
781 * vmstop request was pending. The BLOCK_IO_ERROR event, for
782 * example, according to documentation is always followed by
785 if (runstate_is_running()) {
786 qapi_event_send_stop(&error_abort);
788 replay_enable_events();
790 runstate_set(RUN_STATE_RUNNING);
791 vm_state_notify(1, RUN_STATE_RUNNING);
795 qapi_event_send_resume(&error_abort);
799 /***********************************************************/
800 /* real time host monotonic timer */
802 static time_t qemu_time(void)
804 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
807 /***********************************************************/
808 /* host time/date access */
809 void qemu_get_timedate(struct tm *tm, int offset)
811 time_t ti = qemu_time();
814 if (rtc_date_offset == -1) {
818 localtime_r(&ti, tm);
820 ti -= rtc_date_offset;
825 int qemu_timedate_diff(struct tm *tm)
829 if (rtc_date_offset == -1)
831 seconds = mktimegm(tm);
834 tmp.tm_isdst = -1; /* use timezone to figure it out */
835 seconds = mktime(&tmp);
838 seconds = mktimegm(tm) + rtc_date_offset;
840 return seconds - qemu_time();
843 static void configure_rtc_date_offset(const char *startdate, int legacy)
845 time_t rtc_start_date;
848 if (!strcmp(startdate, "now") && legacy) {
849 rtc_date_offset = -1;
851 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
859 } else if (sscanf(startdate, "%d-%d-%d",
871 rtc_start_date = mktimegm(&tm);
872 if (rtc_start_date == -1) {
874 error_report("invalid date format");
875 error_printf("valid formats: "
876 "'2006-06-17T16:01:21' or '2006-06-17'\n");
879 rtc_date_offset = qemu_time() - rtc_start_date;
883 static void configure_rtc(QemuOpts *opts)
887 value = qemu_opt_get(opts, "base");
889 if (!strcmp(value, "utc")) {
891 } else if (!strcmp(value, "localtime")) {
892 Error *blocker = NULL;
894 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
895 "-rtc base=localtime");
896 replay_add_blocker(blocker);
898 configure_rtc_date_offset(value, 0);
901 value = qemu_opt_get(opts, "clock");
903 if (!strcmp(value, "host")) {
904 rtc_clock = QEMU_CLOCK_HOST;
905 } else if (!strcmp(value, "rt")) {
906 rtc_clock = QEMU_CLOCK_REALTIME;
907 } else if (!strcmp(value, "vm")) {
908 rtc_clock = QEMU_CLOCK_VIRTUAL;
910 error_report("invalid option value '%s'", value);
914 value = qemu_opt_get(opts, "driftfix");
916 if (!strcmp(value, "slew")) {
917 static GlobalProperty slew_lost_ticks = {
918 .driver = "mc146818rtc",
919 .property = "lost_tick_policy",
923 qdev_prop_register_global(&slew_lost_ticks);
924 } else if (!strcmp(value, "none")) {
925 /* discard is default */
927 error_report("invalid option value '%s'", value);
933 /***********************************************************/
934 /* Bluetooth support */
937 static struct HCIInfo *hci_table[MAX_NICS];
939 struct HCIInfo *qemu_next_hci(void)
941 if (cur_hci == nb_hcis)
944 return hci_table[cur_hci++];
947 static int bt_hci_parse(const char *str)
952 if (nb_hcis >= MAX_NICS) {
953 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
966 bdaddr.b[5] = 0x56 + nb_hcis;
967 hci->bdaddr_set(hci, bdaddr.b);
969 hci_table[nb_hcis++] = hci;
974 static void bt_vhci_add(int vlan_id)
976 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
979 error_report("warning: adding a VHCI to an empty scatternet %i",
982 bt_vhci_init(bt_new_hci(vlan));
985 static struct bt_device_s *bt_device_add(const char *opt)
987 struct bt_scatternet_s *vlan;
989 char *endp = strstr(opt, ",vlan=");
990 int len = (endp ? endp - opt : strlen(opt)) + 1;
993 pstrcpy(devname, MIN(sizeof(devname), len), opt);
996 vlan_id = strtol(endp + 6, &endp, 0);
998 error_report("unrecognised bluetooth vlan Id");
1003 vlan = qemu_find_bt_vlan(vlan_id);
1006 error_report("warning: adding a slave device to an empty scatternet %i",
1009 if (!strcmp(devname, "keyboard"))
1010 return bt_keyboard_init(vlan);
1012 error_report("unsupported bluetooth device '%s'", devname);
1016 static int bt_parse(const char *opt)
1018 const char *endp, *p;
1021 if (strstart(opt, "hci", &endp)) {
1022 if (!*endp || *endp == ',') {
1024 if (!strstart(endp, ",vlan=", 0))
1027 return bt_hci_parse(opt);
1029 } else if (strstart(opt, "vhci", &endp)) {
1030 if (!*endp || *endp == ',') {
1032 if (strstart(endp, ",vlan=", &p)) {
1033 vlan = strtol(p, (char **) &endp, 0);
1035 error_report("bad scatternet '%s'", p);
1039 error_report("bad parameter '%s'", endp + 1);
1048 } else if (strstart(opt, "device:", &endp))
1049 return !bt_device_add(endp);
1051 error_report("bad bluetooth parameter '%s'", opt);
1055 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1057 /* FIXME: change this to true for 1.3 */
1058 if (qemu_opt_get_bool(opts, "enable", false)) {
1059 #ifdef CONFIG_SECCOMP
1060 if (seccomp_start() < 0) {
1061 error_report("failed to install seccomp syscall filter "
1066 error_report("seccomp support is disabled");
1074 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1076 const char *proc_name;
1078 if (qemu_opt_get(opts, "debug-threads")) {
1079 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1081 qemu_name = qemu_opt_get(opts, "guest");
1083 proc_name = qemu_opt_get(opts, "process");
1085 os_set_proc_name(proc_name);
1091 bool defaults_enabled(void)
1093 return has_defaults;
1097 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1099 int fd, dupfd, flags;
1101 const char *fd_opaque = NULL;
1104 fd = qemu_opt_get_number(opts, "fd", -1);
1105 fdset_id = qemu_opt_get_number(opts, "set", -1);
1106 fd_opaque = qemu_opt_get(opts, "opaque");
1109 error_report("fd option is required and must be non-negative");
1113 if (fd <= STDERR_FILENO) {
1114 error_report("fd cannot be a standard I/O stream");
1119 * All fds inherited across exec() necessarily have FD_CLOEXEC
1120 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1122 flags = fcntl(fd, F_GETFD);
1123 if (flags == -1 || (flags & FD_CLOEXEC)) {
1124 error_report("fd is not valid or already in use");
1129 error_report("set option is required and must be non-negative");
1133 #ifdef F_DUPFD_CLOEXEC
1134 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1138 qemu_set_cloexec(dupfd);
1142 error_report("error duplicating fd: %s", strerror(errno));
1146 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1147 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1154 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1158 fd = qemu_opt_get_number(opts, "fd", -1);
1165 /***********************************************************/
1166 /* QEMU Block devices */
1168 #define HD_OPTS "media=disk"
1169 #define CDROM_OPTS "media=cdrom"
1171 #define PFLASH_OPTS ""
1175 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1177 BlockInterfaceType *block_default_type = opaque;
1179 return drive_new(opts, *block_default_type) == NULL;
1182 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1184 if (qemu_opt_get(opts, "snapshot") == NULL) {
1185 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1190 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1191 int index, const char *optstr)
1196 if (!enable || drive_get_by_index(type, index)) {
1200 opts = drive_add(type, index, NULL, optstr);
1202 drive_enable_snapshot(NULL, opts, NULL);
1205 dinfo = drive_new(opts, type);
1209 dinfo->is_default = true;
1213 static QemuOptsList qemu_smp_opts = {
1215 .implied_opt_name = "cpus",
1216 .merge_lists = true,
1217 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1221 .type = QEMU_OPT_NUMBER,
1224 .type = QEMU_OPT_NUMBER,
1227 .type = QEMU_OPT_NUMBER,
1230 .type = QEMU_OPT_NUMBER,
1233 .type = QEMU_OPT_NUMBER,
1235 { /*End of list */ }
1239 static void smp_parse(QemuOpts *opts)
1242 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1243 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1244 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1245 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1247 /* compute missing values, prefer sockets over cores over threads */
1248 if (cpus == 0 || sockets == 0) {
1249 sockets = sockets > 0 ? sockets : 1;
1250 cores = cores > 0 ? cores : 1;
1251 threads = threads > 0 ? threads : 1;
1253 cpus = cores * threads * sockets;
1255 } else if (cores == 0) {
1256 threads = threads > 0 ? threads : 1;
1257 cores = cpus / (sockets * threads);
1258 cores = cores > 0 ? cores : 1;
1259 } else if (threads == 0) {
1260 threads = cpus / (cores * sockets);
1261 threads = threads > 0 ? threads : 1;
1262 } else if (sockets * cores * threads < cpus) {
1263 error_report("cpu topology: "
1264 "sockets (%u) * cores (%u) * threads (%u) < "
1266 sockets, cores, threads, cpus);
1270 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1272 if (max_cpus > MAX_CPUMASK_BITS) {
1273 error_report("unsupported number of maxcpus");
1277 if (max_cpus < cpus) {
1278 error_report("maxcpus must be equal to or greater than smp");
1282 if (sockets * cores * threads > max_cpus) {
1283 error_report("cpu topology: "
1284 "sockets (%u) * cores (%u) * threads (%u) > "
1286 sockets, cores, threads, max_cpus);
1292 smp_threads = threads;
1296 Error *blocker = NULL;
1297 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1298 replay_add_blocker(blocker);
1302 static void realtime_init(void)
1305 if (os_mlock() < 0) {
1306 error_report("locking memory failed");
1313 static void configure_msg(QemuOpts *opts)
1315 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1318 /***********************************************************/
1321 typedef struct SemihostingConfig {
1323 SemihostingTarget target;
1326 const char *cmdline; /* concatenated argv */
1327 } SemihostingConfig;
1329 static SemihostingConfig semihosting;
1331 bool semihosting_enabled(void)
1333 return semihosting.enabled;
1336 SemihostingTarget semihosting_get_target(void)
1338 return semihosting.target;
1341 const char *semihosting_get_arg(int i)
1343 if (i >= semihosting.argc) {
1346 return semihosting.argv[i];
1349 int semihosting_get_argc(void)
1351 return semihosting.argc;
1354 const char *semihosting_get_cmdline(void)
1356 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1357 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1359 return semihosting.cmdline;
1362 static int add_semihosting_arg(void *opaque,
1363 const char *name, const char *val,
1366 SemihostingConfig *s = opaque;
1367 if (strcmp(name, "arg") == 0) {
1369 /* one extra element as g_strjoinv() expects NULL-terminated array */
1370 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1371 s->argv[s->argc - 1] = val;
1372 s->argv[s->argc] = NULL;
1377 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1378 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1383 add_semihosting_arg(&semihosting, "arg", file, NULL);
1385 /* split -append and initialize argv[1..n] */
1386 cmd_token = strtok(g_strdup(cmd), " ");
1388 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1389 cmd_token = strtok(NULL, " ");
1393 /* Now we still need this for compatibility with XEN. */
1394 bool has_igd_gfx_passthru;
1395 static void igd_gfx_passthru(void)
1397 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1400 /***********************************************************/
1403 static int usb_device_add(const char *devname)
1405 USBDevice *dev = NULL;
1406 #ifndef CONFIG_LINUX
1410 if (!machine_usb(current_machine)) {
1414 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1415 dev = usbdevice_create(devname);
1419 /* the other ones */
1420 #ifndef CONFIG_LINUX
1421 /* only the linux version is qdev-ified, usb-bsd still needs this */
1422 if (strstart(devname, "host:", &p)) {
1423 dev = usb_host_device_open(usb_bus_find(-1), p);
1433 static int usb_device_del(const char *devname)
1438 if (strstart(devname, "host:", &p)) {
1442 if (!machine_usb(current_machine)) {
1446 p = strchr(devname, '.');
1449 bus_num = strtoul(devname, NULL, 0);
1450 addr = strtoul(p + 1, NULL, 0);
1452 return usb_device_delete_addr(bus_num, addr);
1455 static int usb_parse(const char *cmdline)
1458 r = usb_device_add(cmdline);
1460 error_report("could not add USB device '%s'", cmdline);
1465 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1467 const char *devname = qdict_get_str(qdict, "devname");
1468 if (usb_device_add(devname) < 0) {
1469 error_report("could not add USB device '%s'", devname);
1473 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1475 const char *devname = qdict_get_str(qdict, "devname");
1476 if (usb_device_del(devname) < 0) {
1477 error_report("could not delete USB device '%s'", devname);
1481 /***********************************************************/
1482 /* machine registration */
1484 MachineState *current_machine;
1486 static MachineClass *find_machine(const char *name)
1488 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1489 MachineClass *mc = NULL;
1491 for (el = machines; el; el = el->next) {
1492 MachineClass *temp = el->data;
1494 if (!strcmp(temp->name, name)) {
1499 !strcmp(temp->alias, name)) {
1505 g_slist_free(machines);
1509 MachineClass *find_default_machine(void)
1511 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1512 MachineClass *mc = NULL;
1514 for (el = machines; el; el = el->next) {
1515 MachineClass *temp = el->data;
1517 if (temp->is_default) {
1523 g_slist_free(machines);
1527 MachineInfoList *qmp_query_machines(Error **errp)
1529 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1530 MachineInfoList *mach_list = NULL;
1532 for (el = machines; el; el = el->next) {
1533 MachineClass *mc = el->data;
1534 MachineInfoList *entry;
1537 info = g_malloc0(sizeof(*info));
1538 if (mc->is_default) {
1539 info->has_is_default = true;
1540 info->is_default = true;
1544 info->has_alias = true;
1545 info->alias = g_strdup(mc->alias);
1548 info->name = g_strdup(mc->name);
1549 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1550 info->hotpluggable_cpus = !!mc->query_hotpluggable_cpus;
1552 entry = g_malloc0(sizeof(*entry));
1553 entry->value = info;
1554 entry->next = mach_list;
1558 g_slist_free(machines);
1562 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1564 ObjectProperty *prop;
1565 ObjectPropertyIterator iter;
1567 if (!qemu_opt_has_help_opt(opts)) {
1571 object_property_iter_init(&iter, OBJECT(machine));
1572 while ((prop = object_property_iter_next(&iter))) {
1577 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1578 prop->name, prop->type);
1579 if (prop->description) {
1580 error_printf(" (%s)\n", prop->description);
1589 /***********************************************************/
1590 /* main execution loop */
1592 struct vm_change_state_entry {
1593 VMChangeStateHandler *cb;
1595 QLIST_ENTRY (vm_change_state_entry) entries;
1598 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1600 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1603 VMChangeStateEntry *e;
1605 e = g_malloc0(sizeof (*e));
1609 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1613 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1615 QLIST_REMOVE (e, entries);
1619 void vm_state_notify(int running, RunState state)
1621 VMChangeStateEntry *e, *next;
1623 trace_vm_state_notify(running, state);
1625 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1626 e->cb(e->opaque, running, state);
1630 /* reset/shutdown handler */
1632 typedef struct QEMUResetEntry {
1633 QTAILQ_ENTRY(QEMUResetEntry) entry;
1634 QEMUResetHandler *func;
1638 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1639 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1640 static int reset_requested;
1641 static int shutdown_requested, shutdown_signal = -1;
1642 static pid_t shutdown_pid;
1643 static int powerdown_requested;
1644 static int debug_requested;
1645 static int suspend_requested;
1646 static WakeupReason wakeup_reason;
1647 static NotifierList powerdown_notifiers =
1648 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1649 static NotifierList suspend_notifiers =
1650 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1651 static NotifierList wakeup_notifiers =
1652 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1653 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1655 int qemu_shutdown_requested_get(void)
1657 return shutdown_requested;
1660 int qemu_reset_requested_get(void)
1662 return reset_requested;
1665 static int qemu_shutdown_requested(void)
1667 return atomic_xchg(&shutdown_requested, 0);
1670 static void qemu_kill_report(void)
1672 if (!qtest_driver() && shutdown_signal != -1) {
1673 if (shutdown_pid == 0) {
1674 /* This happens for eg ^C at the terminal, so it's worth
1675 * avoiding printing an odd message in that case.
1677 error_report("terminating on signal %d", shutdown_signal);
1679 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1681 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1682 shutdown_signal, shutdown_pid,
1683 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1684 g_free(shutdown_cmd);
1686 shutdown_signal = -1;
1690 static int qemu_reset_requested(void)
1692 int r = reset_requested;
1693 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1694 reset_requested = 0;
1700 static int qemu_suspend_requested(void)
1702 int r = suspend_requested;
1703 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1704 suspend_requested = 0;
1710 static WakeupReason qemu_wakeup_requested(void)
1712 return wakeup_reason;
1715 static int qemu_powerdown_requested(void)
1717 int r = powerdown_requested;
1718 powerdown_requested = 0;
1722 static int qemu_debug_requested(void)
1724 int r = debug_requested;
1725 debug_requested = 0;
1729 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1731 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1734 re->opaque = opaque;
1735 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1738 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1742 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1743 if (re->func == func && re->opaque == opaque) {
1744 QTAILQ_REMOVE(&reset_handlers, re, entry);
1751 void qemu_devices_reset(void)
1753 QEMUResetEntry *re, *nre;
1755 /* reset all devices */
1756 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1757 re->func(re->opaque);
1761 void qemu_system_reset(bool report)
1765 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1767 cpu_synchronize_all_states();
1769 if (mc && mc->reset) {
1772 qemu_devices_reset();
1775 qapi_event_send_reset(&error_abort);
1777 cpu_synchronize_all_post_reset();
1780 void qemu_system_guest_panicked(void)
1783 current_cpu->crash_occurred = true;
1785 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1786 vm_stop(RUN_STATE_GUEST_PANICKED);
1789 void qemu_system_reset_request(void)
1792 shutdown_requested = 1;
1794 reset_requested = 1;
1797 qemu_notify_event();
1800 static void qemu_system_suspend(void)
1803 notifier_list_notify(&suspend_notifiers, NULL);
1804 runstate_set(RUN_STATE_SUSPENDED);
1805 qapi_event_send_suspend(&error_abort);
1808 void qemu_system_suspend_request(void)
1810 if (runstate_check(RUN_STATE_SUSPENDED)) {
1813 suspend_requested = 1;
1815 qemu_notify_event();
1818 void qemu_register_suspend_notifier(Notifier *notifier)
1820 notifier_list_add(&suspend_notifiers, notifier);
1823 void qemu_system_wakeup_request(WakeupReason reason)
1825 trace_system_wakeup_request(reason);
1827 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1830 if (!(wakeup_reason_mask & (1 << reason))) {
1833 runstate_set(RUN_STATE_RUNNING);
1834 wakeup_reason = reason;
1835 qemu_notify_event();
1838 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1841 wakeup_reason_mask |= (1 << reason);
1843 wakeup_reason_mask &= ~(1 << reason);
1847 void qemu_register_wakeup_notifier(Notifier *notifier)
1849 notifier_list_add(&wakeup_notifiers, notifier);
1852 void qemu_system_killed(int signal, pid_t pid)
1854 shutdown_signal = signal;
1858 /* Cannot call qemu_system_shutdown_request directly because
1859 * we are in a signal handler.
1861 shutdown_requested = 1;
1862 qemu_notify_event();
1865 void qemu_system_shutdown_request(void)
1867 trace_qemu_system_shutdown_request();
1868 replay_shutdown_request();
1869 shutdown_requested = 1;
1870 qemu_notify_event();
1873 static void qemu_system_powerdown(void)
1875 qapi_event_send_powerdown(&error_abort);
1876 notifier_list_notify(&powerdown_notifiers, NULL);
1879 void qemu_system_powerdown_request(void)
1881 trace_qemu_system_powerdown_request();
1882 powerdown_requested = 1;
1883 qemu_notify_event();
1886 void qemu_register_powerdown_notifier(Notifier *notifier)
1888 notifier_list_add(&powerdown_notifiers, notifier);
1891 void qemu_system_debug_request(void)
1893 debug_requested = 1;
1894 qemu_notify_event();
1897 static bool main_loop_should_exit(void)
1900 if (qemu_debug_requested()) {
1901 vm_stop(RUN_STATE_DEBUG);
1903 if (qemu_suspend_requested()) {
1904 qemu_system_suspend();
1906 if (qemu_shutdown_requested()) {
1908 qapi_event_send_shutdown(&error_abort);
1910 vm_stop(RUN_STATE_SHUTDOWN);
1915 if (qemu_reset_requested()) {
1917 qemu_system_reset(VMRESET_REPORT);
1919 if (!runstate_check(RUN_STATE_RUNNING) &&
1920 !runstate_check(RUN_STATE_INMIGRATE)) {
1921 runstate_set(RUN_STATE_PRELAUNCH);
1924 if (qemu_wakeup_requested()) {
1926 qemu_system_reset(VMRESET_SILENT);
1927 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1928 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1930 qapi_event_send_wakeup(&error_abort);
1932 if (qemu_powerdown_requested()) {
1933 qemu_system_powerdown();
1935 if (qemu_vmstop_requested(&r)) {
1941 static void main_loop(void)
1945 #ifdef CONFIG_PROFILER
1949 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1950 #ifdef CONFIG_PROFILER
1951 ti = profile_getclock();
1953 last_io = main_loop_wait(nonblocking);
1954 #ifdef CONFIG_PROFILER
1955 dev_time += profile_getclock() - ti;
1957 } while (!main_loop_should_exit());
1960 static void version(void)
1962 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1963 QEMU_COPYRIGHT "\n");
1966 static void help(int exitcode)
1969 printf("usage: %s [options] [disk_image]\n\n"
1970 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1971 error_get_progname());
1973 #define QEMU_OPTIONS_GENERATE_HELP
1974 #include "qemu-options-wrapper.h"
1976 printf("\nDuring emulation, the following keys are useful:\n"
1977 "ctrl-alt-f toggle full screen\n"
1978 "ctrl-alt-n switch to virtual console 'n'\n"
1979 "ctrl-alt toggle mouse and keyboard grab\n"
1981 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1986 #define HAS_ARG 0x0001
1988 typedef struct QEMUOption {
1995 static const QEMUOption qemu_options[] = {
1996 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1997 #define QEMU_OPTIONS_GENERATE_OPTIONS
1998 #include "qemu-options-wrapper.h"
2002 typedef struct VGAInterfaceInfo {
2003 const char *opt_name; /* option name */
2004 const char *name; /* human-readable name */
2005 /* Class names indicating that support is available.
2006 * If no class is specified, the interface is always available */
2007 const char *class_names[2];
2010 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2016 .name = "standard VGA",
2017 .class_names = { "VGA", "isa-vga" },
2020 .opt_name = "cirrus",
2021 .name = "Cirrus VGA",
2022 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2025 .opt_name = "vmware",
2026 .name = "VMWare SVGA",
2027 .class_names = { "vmware-svga" },
2030 .opt_name = "virtio",
2031 .name = "Virtio VGA",
2032 .class_names = { "virtio-vga" },
2037 .class_names = { "qxl-vga" },
2041 .name = "TCX framebuffer",
2042 .class_names = { "SUNW,tcx" },
2046 .name = "CG3 framebuffer",
2047 .class_names = { "cgthree" },
2050 .opt_name = "xenfb",
2054 static bool vga_interface_available(VGAInterfaceType t)
2056 VGAInterfaceInfo *ti = &vga_interfaces[t];
2058 assert(t < VGA_TYPE_MAX);
2059 return !ti->class_names[0] ||
2060 object_class_by_name(ti->class_names[0]) ||
2061 object_class_by_name(ti->class_names[1]);
2064 static void select_vgahw(const char *p)
2069 assert(vga_interface_type == VGA_NONE);
2070 for (t = 0; t < VGA_TYPE_MAX; t++) {
2071 VGAInterfaceInfo *ti = &vga_interfaces[t];
2072 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2073 if (!vga_interface_available(t)) {
2074 error_report("%s not available", ti->name);
2077 vga_interface_type = t;
2081 if (t == VGA_TYPE_MAX) {
2083 error_report("unknown vga type: %s", p);
2087 const char *nextopt;
2089 if (strstart(opts, ",retrace=", &nextopt)) {
2091 if (strstart(opts, "dumb", &nextopt))
2092 vga_retrace_method = VGA_RETRACE_DUMB;
2093 else if (strstart(opts, "precise", &nextopt))
2094 vga_retrace_method = VGA_RETRACE_PRECISE;
2095 else goto invalid_vga;
2096 } else goto invalid_vga;
2101 typedef enum DisplayType {
2110 static DisplayType select_display(const char *p)
2113 DisplayType display = DT_DEFAULT;
2115 if (strstart(p, "sdl", &opts)) {
2119 const char *nextopt;
2121 if (strstart(opts, ",frame=", &nextopt)) {
2123 if (strstart(opts, "on", &nextopt)) {
2125 } else if (strstart(opts, "off", &nextopt)) {
2128 goto invalid_sdl_args;
2130 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2132 if (strstart(opts, "on", &nextopt)) {
2134 } else if (strstart(opts, "off", &nextopt)) {
2137 goto invalid_sdl_args;
2139 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2141 if (strstart(opts, "on", &nextopt)) {
2143 } else if (strstart(opts, "off", &nextopt)) {
2146 goto invalid_sdl_args;
2148 } else if (strstart(opts, ",window_close=", &nextopt)) {
2150 if (strstart(opts, "on", &nextopt)) {
2152 } else if (strstart(opts, "off", &nextopt)) {
2155 goto invalid_sdl_args;
2157 } else if (strstart(opts, ",gl=", &nextopt)) {
2159 if (strstart(opts, "on", &nextopt)) {
2161 } else if (strstart(opts, "off", &nextopt)) {
2164 goto invalid_sdl_args;
2168 error_report("invalid SDL option string");
2174 error_report("SDL support is disabled");
2177 } else if (strstart(p, "vnc", &opts)) {
2179 vnc_parse(opts + 1, &error_fatal);
2181 error_report("VNC requires a display argument vnc=<display>");
2184 } else if (strstart(p, "curses", &opts)) {
2185 #ifdef CONFIG_CURSES
2186 display = DT_CURSES;
2188 error_report("curses support is disabled");
2191 } else if (strstart(p, "gtk", &opts)) {
2195 const char *nextopt;
2197 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2199 if (strstart(opts, "on", &nextopt)) {
2200 grab_on_hover = true;
2201 } else if (strstart(opts, "off", &nextopt)) {
2202 grab_on_hover = false;
2204 goto invalid_gtk_args;
2206 } else if (strstart(opts, ",gl=", &nextopt)) {
2208 if (strstart(opts, "on", &nextopt)) {
2210 } else if (strstart(opts, "off", &nextopt)) {
2213 goto invalid_gtk_args;
2217 error_report("invalid GTK option string");
2223 error_report("GTK support is disabled");
2226 } else if (strstart(p, "none", &opts)) {
2229 error_report("unknown display type");
2236 static int balloon_parse(const char *arg)
2240 if (strcmp(arg, "none") == 0) {
2244 if (!strncmp(arg, "virtio", 6)) {
2245 if (arg[6] == ',') {
2246 /* have params -> parse them */
2247 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2252 /* create empty opts */
2253 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2256 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2263 char *qemu_find_file(int type, const char *name)
2269 /* Try the name as a straight path first */
2270 if (access(name, R_OK) == 0) {
2271 trace_load_file(name, name);
2272 return g_strdup(name);
2276 case QEMU_FILE_TYPE_BIOS:
2279 case QEMU_FILE_TYPE_KEYMAP:
2280 subdir = "keymaps/";
2286 for (i = 0; i < data_dir_idx; i++) {
2287 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2288 if (access(buf, R_OK) == 0) {
2289 trace_load_file(name, buf);
2297 static inline bool nonempty_str(const char *str)
2302 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2306 const char *name, *file, *str;
2307 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2309 if (fw_cfg == NULL) {
2310 error_report("fw_cfg device not available");
2313 name = qemu_opt_get(opts, "name");
2314 file = qemu_opt_get(opts, "file");
2315 str = qemu_opt_get(opts, "string");
2317 /* we need name and either a file or the content string */
2318 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2319 error_report("invalid argument(s)");
2322 if (nonempty_str(file) && nonempty_str(str)) {
2323 error_report("file and string are mutually exclusive");
2326 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2327 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2330 if (strncmp(name, "opt/", 4) != 0) {
2331 error_report("warning: externally provided fw_cfg item names "
2332 "should be prefixed with \"opt/\"");
2334 if (nonempty_str(str)) {
2335 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2336 buf = g_memdup(str, size);
2338 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2339 error_report("can't load %s", file);
2343 /* For legacy, keep user files in a specific global order. */
2344 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2345 fw_cfg_add_file(fw_cfg, name, buf, size);
2346 fw_cfg_reset_order_override(fw_cfg);
2350 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2352 return qdev_device_help(opts);
2355 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2360 dev = qdev_device_add(opts, &err);
2362 error_report_err(err);
2365 object_unref(OBJECT(dev));
2369 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2371 Error *local_err = NULL;
2373 qemu_chr_new_from_opts(opts, &local_err);
2375 error_report_err(local_err);
2381 #ifdef CONFIG_VIRTFS
2382 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2384 return qemu_fsdev_add(opts);
2388 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2390 CharDriverState *chr;
2391 const char *chardev;
2395 mode = qemu_opt_get(opts, "mode");
2399 if (strcmp(mode, "readline") == 0) {
2400 flags = MONITOR_USE_READLINE;
2401 } else if (strcmp(mode, "control") == 0) {
2402 flags = MONITOR_USE_CONTROL;
2404 error_report("unknown monitor mode \"%s\"", mode);
2408 if (qemu_opt_get_bool(opts, "pretty", 0))
2409 flags |= MONITOR_USE_PRETTY;
2411 if (qemu_opt_get_bool(opts, "default", 0))
2412 flags |= MONITOR_IS_DEFAULT;
2414 chardev = qemu_opt_get(opts, "chardev");
2415 chr = qemu_chr_find(chardev);
2417 error_report("chardev \"%s\" not found", chardev);
2421 monitor_init(chr, flags);
2425 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2427 static int monitor_device_index = 0;
2433 if (strstart(optarg, "chardev:", &p)) {
2434 snprintf(label, sizeof(label), "%s", p);
2436 snprintf(label, sizeof(label), "compat_monitor%d",
2437 monitor_device_index);
2438 if (monitor_device_index == 0) {
2441 opts = qemu_chr_parse_compat(label, optarg);
2443 error_report("parse error: %s", optarg);
2448 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2449 qemu_opt_set(opts, "mode", mode, &error_abort);
2450 qemu_opt_set(opts, "chardev", label, &error_abort);
2451 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2453 qemu_opt_set(opts, "default", "on", &error_abort);
2454 monitor_device_index++;
2457 struct device_config {
2459 DEV_USB, /* -usbdevice */
2461 DEV_SERIAL, /* -serial */
2462 DEV_PARALLEL, /* -parallel */
2463 DEV_VIRTCON, /* -virtioconsole */
2464 DEV_DEBUGCON, /* -debugcon */
2465 DEV_GDB, /* -gdb, -s */
2466 DEV_SCLP, /* s390 sclp */
2468 const char *cmdline;
2470 QTAILQ_ENTRY(device_config) next;
2473 static QTAILQ_HEAD(, device_config) device_configs =
2474 QTAILQ_HEAD_INITIALIZER(device_configs);
2476 static void add_device_config(int type, const char *cmdline)
2478 struct device_config *conf;
2480 conf = g_malloc0(sizeof(*conf));
2482 conf->cmdline = cmdline;
2483 loc_save(&conf->loc);
2484 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2487 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2489 struct device_config *conf;
2492 QTAILQ_FOREACH(conf, &device_configs, next) {
2493 if (conf->type != type)
2495 loc_push_restore(&conf->loc);
2496 rc = func(conf->cmdline);
2497 loc_pop(&conf->loc);
2505 static int serial_parse(const char *devname)
2507 static int index = 0;
2510 if (strcmp(devname, "none") == 0)
2512 if (index == MAX_SERIAL_PORTS) {
2513 error_report("too many serial ports");
2516 snprintf(label, sizeof(label), "serial%d", index);
2517 serial_hds[index] = qemu_chr_new(label, devname);
2518 if (!serial_hds[index]) {
2519 error_report("could not connect serial device"
2520 " to character backend '%s'", devname);
2527 static int parallel_parse(const char *devname)
2529 static int index = 0;
2532 if (strcmp(devname, "none") == 0)
2534 if (index == MAX_PARALLEL_PORTS) {
2535 error_report("too many parallel ports");
2538 snprintf(label, sizeof(label), "parallel%d", index);
2539 parallel_hds[index] = qemu_chr_new(label, devname);
2540 if (!parallel_hds[index]) {
2541 error_report("could not connect parallel device"
2542 " to character backend '%s'", devname);
2549 static int virtcon_parse(const char *devname)
2551 QemuOptsList *device = qemu_find_opts("device");
2552 static int index = 0;
2554 QemuOpts *bus_opts, *dev_opts;
2556 if (strcmp(devname, "none") == 0)
2558 if (index == MAX_VIRTIO_CONSOLES) {
2559 error_report("too many virtio consoles");
2563 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2564 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2566 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2567 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2569 snprintf(label, sizeof(label), "virtcon%d", index);
2570 virtcon_hds[index] = qemu_chr_new(label, devname);
2571 if (!virtcon_hds[index]) {
2572 error_report("could not connect virtio console"
2573 " to character backend '%s'", devname);
2576 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2582 static int sclp_parse(const char *devname)
2584 QemuOptsList *device = qemu_find_opts("device");
2585 static int index = 0;
2589 if (strcmp(devname, "none") == 0) {
2592 if (index == MAX_SCLP_CONSOLES) {
2593 error_report("too many sclp consoles");
2597 assert(arch_type == QEMU_ARCH_S390X);
2599 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2600 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2602 snprintf(label, sizeof(label), "sclpcon%d", index);
2603 sclp_hds[index] = qemu_chr_new(label, devname);
2604 if (!sclp_hds[index]) {
2605 error_report("could not connect sclp console"
2606 " to character backend '%s'", devname);
2609 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2615 static int debugcon_parse(const char *devname)
2619 if (!qemu_chr_new("debugcon", devname)) {
2622 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2624 error_report("already have a debugcon device");
2627 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2628 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2632 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2634 const MachineClass *mc1 = a, *mc2 = b;
2637 if (mc1->family == NULL) {
2638 if (mc2->family == NULL) {
2639 /* Compare standalone machine types against each other; they sort
2640 * in increasing order.
2642 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2643 object_class_get_name(OBJECT_CLASS(mc2)));
2646 /* Standalone machine types sort after families. */
2650 if (mc2->family == NULL) {
2651 /* Families sort before standalone machine types. */
2655 /* Families sort between each other alphabetically increasingly. */
2656 res = strcmp(mc1->family, mc2->family);
2661 /* Within the same family, machine types sort in decreasing order. */
2662 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2663 object_class_get_name(OBJECT_CLASS(mc1)));
2666 static MachineClass *machine_parse(const char *name)
2668 MachineClass *mc = NULL;
2669 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2672 mc = find_machine(name);
2675 g_slist_free(machines);
2678 if (name && !is_help_option(name)) {
2679 error_report("unsupported machine type");
2680 error_printf("Use -machine help to list supported machines\n");
2682 printf("Supported machines are:\n");
2683 machines = g_slist_sort(machines, machine_class_cmp);
2684 for (el = machines; el; el = el->next) {
2685 MachineClass *mc = el->data;
2687 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2689 printf("%-20s %s%s\n", mc->name, mc->desc,
2690 mc->is_default ? " (default)" : "");
2694 g_slist_free(machines);
2695 exit(!name || !is_help_option(name));
2698 void qemu_add_exit_notifier(Notifier *notify)
2700 notifier_list_add(&exit_notifiers, notify);
2703 void qemu_remove_exit_notifier(Notifier *notify)
2705 notifier_remove(notify);
2708 static void qemu_run_exit_notifiers(void)
2710 notifier_list_notify(&exit_notifiers, NULL);
2713 static bool machine_init_done;
2715 void qemu_add_machine_init_done_notifier(Notifier *notify)
2717 notifier_list_add(&machine_init_done_notifiers, notify);
2718 if (machine_init_done) {
2719 notify->notify(notify, NULL);
2723 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2725 notifier_remove(notify);
2728 static void qemu_run_machine_init_done_notifiers(void)
2730 notifier_list_notify(&machine_init_done_notifiers, NULL);
2731 machine_init_done = true;
2734 static const QEMUOption *lookup_opt(int argc, char **argv,
2735 const char **poptarg, int *poptind)
2737 const QEMUOption *popt;
2738 int optind = *poptind;
2739 char *r = argv[optind];
2742 loc_set_cmdline(argv, optind, 1);
2744 /* Treat --foo the same as -foo. */
2747 popt = qemu_options;
2750 error_report("invalid option");
2753 if (!strcmp(popt->name, r + 1))
2757 if (popt->flags & HAS_ARG) {
2758 if (optind >= argc) {
2759 error_report("requires an argument");
2762 optarg = argv[optind++];
2763 loc_set_cmdline(argv, optind - 2, 2);
2774 static MachineClass *select_machine(void)
2776 MachineClass *machine_class = find_default_machine();
2781 loc_push_none(&loc);
2783 opts = qemu_get_machine_opts();
2784 qemu_opts_loc_restore(opts);
2786 optarg = qemu_opt_get(opts, "type");
2788 machine_class = machine_parse(optarg);
2791 if (!machine_class) {
2792 error_report("No machine specified, and there is no default");
2793 error_printf("Use -machine help to list supported machines\n");
2798 return machine_class;
2801 static int machine_set_property(void *opaque,
2802 const char *name, const char *value,
2805 Object *obj = OBJECT(opaque);
2806 Error *local_err = NULL;
2809 if (strcmp(name, "type") == 0) {
2813 qom_name = g_strdup(name);
2814 for (p = qom_name; *p; p++) {
2820 object_property_parse(obj, value, qom_name, &local_err);
2824 error_report_err(local_err);
2833 * Initial object creation happens before all other
2834 * QEMU data types are created. The majority of objects
2835 * can be created at this point. The rng-egd object
2836 * cannot be created here, as it depends on the chardev
2839 static bool object_create_initial(const char *type)
2841 if (g_str_equal(type, "rng-egd")) {
2846 * return false for concrete netfilters since
2847 * they depend on netdevs already existing
2849 if (g_str_equal(type, "filter-buffer") ||
2850 g_str_equal(type, "filter-dump") ||
2851 g_str_equal(type, "filter-mirror") ||
2852 g_str_equal(type, "filter-redirector") ||
2853 g_str_equal(type, "colo-compare") ||
2854 g_str_equal(type, "filter-rewriter")) {
2858 /* Memory allocation by backends needs to be done
2859 * after configure_accelerator() (due to the tcg_enabled()
2860 * checks at memory_region_init_*()).
2862 * Also, allocation of large amounts of memory may delay
2863 * chardev initialization for too long, and trigger timeouts
2864 * on software that waits for a monitor socket to be created
2867 if (g_str_has_prefix(type, "memory-backend-")) {
2876 * The remainder of object creation happens after the
2877 * creation of chardev, fsdev, net clients and device data types.
2879 static bool object_create_delayed(const char *type)
2881 return !object_create_initial(type);
2885 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2889 const char *mem_str;
2890 const char *maxmem_str, *slots_str;
2891 const ram_addr_t default_ram_size = mc->default_ram_size;
2892 QemuOpts *opts = qemu_find_opts_singleton("memory");
2895 loc_push_none(&loc);
2896 qemu_opts_loc_restore(opts);
2899 mem_str = qemu_opt_get(opts, "size");
2902 error_report("missing 'size' option value");
2906 sz = qemu_opt_get_size(opts, "size", ram_size);
2908 /* Fix up legacy suffix-less format */
2909 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2910 uint64_t overflow_check = sz;
2913 if ((sz >> 20) != overflow_check) {
2914 error_report("too large 'size' option value");
2920 /* backward compatibility behaviour for case "-m 0" */
2922 sz = default_ram_size;
2925 sz = QEMU_ALIGN_UP(sz, 8192);
2927 if (ram_size != sz) {
2928 error_report("ram size too large");
2932 /* store value for the future use */
2933 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2934 *maxram_size = ram_size;
2936 maxmem_str = qemu_opt_get(opts, "maxmem");
2937 slots_str = qemu_opt_get(opts, "slots");
2938 if (maxmem_str && slots_str) {
2941 sz = qemu_opt_get_size(opts, "maxmem", 0);
2942 slots = qemu_opt_get_number(opts, "slots", 0);
2943 if (sz < ram_size) {
2944 error_report("invalid value of -m option maxmem: "
2945 "maximum memory size (0x%" PRIx64 ") must be at least "
2946 "the initial memory size (0x" RAM_ADDR_FMT ")",
2949 } else if (sz > ram_size) {
2951 error_report("invalid value of -m option: maxmem was "
2952 "specified, but no hotplug slots were specified");
2956 error_report("invalid value of -m option maxmem: "
2957 "memory slots were specified but maximum memory size "
2958 "(0x%" PRIx64 ") is equal to the initial memory size "
2959 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2965 } else if ((!maxmem_str && slots_str) ||
2966 (maxmem_str && !slots_str)) {
2967 error_report("invalid -m option value: missing "
2968 "'%s' option", slots_str ? "maxmem" : "slots");
2975 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2979 g = g_malloc0(sizeof(*g));
2980 g->driver = qemu_opt_get(opts, "driver");
2981 g->property = qemu_opt_get(opts, "property");
2982 g->value = qemu_opt_get(opts, "value");
2983 g->user_provided = true;
2984 g->errp = &error_fatal;
2985 qdev_prop_register_global(g);
2989 int main(int argc, char **argv, char **envp)
2992 int snapshot, linux_boot;
2993 const char *initrd_filename;
2994 const char *kernel_filename, *kernel_cmdline;
2995 const char *boot_order = NULL;
2996 const char *boot_once = NULL;
2998 int cyls, heads, secs, translation;
2999 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
3000 QemuOptsList *olist;
3003 const char *loadvm = NULL;
3004 MachineClass *machine_class;
3005 const char *cpu_model;
3006 const char *vga_model = NULL;
3007 const char *qtest_chrdev = NULL;
3008 const char *qtest_log = NULL;
3009 const char *pid_file = NULL;
3010 const char *incoming = NULL;
3011 bool defconfig = true;
3012 bool userconfig = true;
3013 bool nographic = false;
3014 DisplayType display_type = DT_DEFAULT;
3015 int display_remote = 0;
3016 const char *log_mask = NULL;
3017 const char *log_file = NULL;
3018 char *trace_file = NULL;
3019 ram_addr_t maxram_size;
3020 uint64_t ram_slots = 0;
3021 FILE *vmstate_dump_file = NULL;
3022 Error *main_loop_err = NULL;
3024 bool list_data_dirs = false;
3026 module_call_init(MODULE_INIT_TRACE);
3028 qemu_init_cpu_list();
3029 qemu_init_cpu_loop();
3030 qemu_mutex_lock_iothread();
3032 atexit(qemu_run_exit_notifiers);
3033 error_set_progname(argv[0]);
3034 qemu_init_exec_dir(argv[0]);
3036 module_call_init(MODULE_INIT_QOM);
3037 module_call_init(MODULE_INIT_QAPI);
3039 qemu_add_opts(&qemu_drive_opts);
3040 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3041 qemu_add_drive_opts(&qemu_common_drive_opts);
3042 qemu_add_drive_opts(&qemu_drive_opts);
3043 qemu_add_drive_opts(&bdrv_runtime_opts);
3044 qemu_add_opts(&qemu_chardev_opts);
3045 qemu_add_opts(&qemu_device_opts);
3046 qemu_add_opts(&qemu_netdev_opts);
3047 qemu_add_opts(&qemu_net_opts);
3048 qemu_add_opts(&qemu_rtc_opts);
3049 qemu_add_opts(&qemu_global_opts);
3050 qemu_add_opts(&qemu_mon_opts);
3051 qemu_add_opts(&qemu_trace_opts);
3052 qemu_add_opts(&qemu_option_rom_opts);
3053 qemu_add_opts(&qemu_machine_opts);
3054 qemu_add_opts(&qemu_mem_opts);
3055 qemu_add_opts(&qemu_smp_opts);
3056 qemu_add_opts(&qemu_boot_opts);
3057 qemu_add_opts(&qemu_sandbox_opts);
3058 qemu_add_opts(&qemu_add_fd_opts);
3059 qemu_add_opts(&qemu_object_opts);
3060 qemu_add_opts(&qemu_tpmdev_opts);
3061 qemu_add_opts(&qemu_realtime_opts);
3062 qemu_add_opts(&qemu_msg_opts);
3063 qemu_add_opts(&qemu_name_opts);
3064 qemu_add_opts(&qemu_numa_opts);
3065 qemu_add_opts(&qemu_icount_opts);
3066 qemu_add_opts(&qemu_semihosting_config_opts);
3067 qemu_add_opts(&qemu_fw_cfg_opts);
3068 #ifdef CONFIG_LIBISCSI
3069 qemu_add_opts(&qemu_iscsi_opts);
3071 module_call_init(MODULE_INIT_OPTS);
3075 if (qcrypto_init(&err) < 0) {
3076 error_reportf_err(err, "cannot initialize crypto: ");
3079 rtc_clock = QEMU_CLOCK_HOST;
3081 QLIST_INIT (&vm_change_state_head);
3082 os_setup_early_signal_handling();
3086 cyls = heads = secs = 0;
3087 translation = BIOS_ATA_TRANSLATION_AUTO;
3091 bdrv_init_with_whitelist();
3095 /* first pass of option parsing */
3097 while (optind < argc) {
3098 if (argv[optind][0] != '-') {
3102 const QEMUOption *popt;
3104 popt = lookup_opt(argc, argv, &optarg, &optind);
3105 switch (popt->index) {
3106 case QEMU_OPTION_nodefconfig:
3109 case QEMU_OPTION_nouserconfig:
3118 ret = qemu_read_default_config_files(userconfig);
3124 /* second pass of option parsing */
3129 if (argv[optind][0] != '-') {
3130 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3132 const QEMUOption *popt;
3134 popt = lookup_opt(argc, argv, &optarg, &optind);
3135 if (!(popt->arch_mask & arch_type)) {
3136 error_report("Option not supported for this target");
3139 switch(popt->index) {
3140 case QEMU_OPTION_no_kvm_irqchip: {
3141 olist = qemu_find_opts("machine");
3142 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3145 case QEMU_OPTION_cpu:
3146 /* hw initialization will check this */
3149 case QEMU_OPTION_hda:
3153 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3155 snprintf(buf, sizeof(buf),
3156 "%s,cyls=%d,heads=%d,secs=%d%s",
3157 HD_OPTS , cyls, heads, secs,
3158 translation == BIOS_ATA_TRANSLATION_LBA ?
3160 translation == BIOS_ATA_TRANSLATION_NONE ?
3161 ",trans=none" : "");
3162 drive_add(IF_DEFAULT, 0, optarg, buf);
3165 case QEMU_OPTION_hdb:
3166 case QEMU_OPTION_hdc:
3167 case QEMU_OPTION_hdd:
3168 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3171 case QEMU_OPTION_drive:
3172 if (drive_def(optarg) == NULL) {
3176 case QEMU_OPTION_set:
3177 if (qemu_set_option(optarg) != 0)
3180 case QEMU_OPTION_global:
3181 if (qemu_global_option(optarg) != 0)
3184 case QEMU_OPTION_mtdblock:
3185 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3187 case QEMU_OPTION_sd:
3188 drive_add(IF_SD, -1, optarg, SD_OPTS);
3190 case QEMU_OPTION_pflash:
3191 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3193 case QEMU_OPTION_snapshot:
3196 case QEMU_OPTION_hdachs:
3200 cyls = strtol(p, (char **)&p, 0);
3201 if (cyls < 1 || cyls > 16383)
3206 heads = strtol(p, (char **)&p, 0);
3207 if (heads < 1 || heads > 16)
3212 secs = strtol(p, (char **)&p, 0);
3213 if (secs < 1 || secs > 63)
3217 if (!strcmp(p, "large")) {
3218 translation = BIOS_ATA_TRANSLATION_LARGE;
3219 } else if (!strcmp(p, "rechs")) {
3220 translation = BIOS_ATA_TRANSLATION_RECHS;
3221 } else if (!strcmp(p, "none")) {
3222 translation = BIOS_ATA_TRANSLATION_NONE;
3223 } else if (!strcmp(p, "lba")) {
3224 translation = BIOS_ATA_TRANSLATION_LBA;
3225 } else if (!strcmp(p, "auto")) {
3226 translation = BIOS_ATA_TRANSLATION_AUTO;
3230 } else if (*p != '\0') {
3232 error_report("invalid physical CHS format");
3235 if (hda_opts != NULL) {
3236 qemu_opt_set_number(hda_opts, "cyls", cyls,
3238 qemu_opt_set_number(hda_opts, "heads", heads,
3240 qemu_opt_set_number(hda_opts, "secs", secs,
3242 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3243 qemu_opt_set(hda_opts, "trans", "large",
3245 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3246 qemu_opt_set(hda_opts, "trans", "rechs",
3248 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3249 qemu_opt_set(hda_opts, "trans", "lba",
3251 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3252 qemu_opt_set(hda_opts, "trans", "none",
3258 case QEMU_OPTION_numa:
3259 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3265 case QEMU_OPTION_display:
3266 display_type = select_display(optarg);
3268 case QEMU_OPTION_nographic:
3269 olist = qemu_find_opts("machine");
3270 qemu_opts_parse_noisily(olist, "graphics=off", false);
3272 display_type = DT_NONE;
3274 case QEMU_OPTION_curses:
3275 #ifdef CONFIG_CURSES
3276 display_type = DT_CURSES;
3278 error_report("curses support is disabled");
3282 case QEMU_OPTION_portrait:
3283 graphic_rotate = 90;
3285 case QEMU_OPTION_rotate:
3286 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3287 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3288 graphic_rotate != 180 && graphic_rotate != 270) {
3289 error_report("only 90, 180, 270 deg rotation is available");
3293 case QEMU_OPTION_kernel:
3294 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3297 case QEMU_OPTION_initrd:
3298 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3301 case QEMU_OPTION_append:
3302 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3305 case QEMU_OPTION_dtb:
3306 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3309 case QEMU_OPTION_cdrom:
3310 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3312 case QEMU_OPTION_boot:
3313 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3319 case QEMU_OPTION_fda:
3320 case QEMU_OPTION_fdb:
3321 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3324 case QEMU_OPTION_no_fd_bootchk:
3327 case QEMU_OPTION_netdev:
3329 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3333 case QEMU_OPTION_net:
3335 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3339 #ifdef CONFIG_LIBISCSI
3340 case QEMU_OPTION_iscsi:
3341 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3349 case QEMU_OPTION_tftp:
3350 error_report("The -tftp option is deprecated. "
3351 "Please use '-netdev user,tftp=...' instead.");
3352 legacy_tftp_prefix = optarg;
3354 case QEMU_OPTION_bootp:
3355 error_report("The -bootp option is deprecated. "
3356 "Please use '-netdev user,bootfile=...' instead.");
3357 legacy_bootp_filename = optarg;
3359 case QEMU_OPTION_redir:
3360 error_report("The -redir option is deprecated. "
3361 "Please use '-netdev user,hostfwd=...' instead.");
3362 if (net_slirp_redir(optarg) < 0)
3366 case QEMU_OPTION_bt:
3367 add_device_config(DEV_BT, optarg);
3369 case QEMU_OPTION_audio_help:
3373 case QEMU_OPTION_soundhw:
3374 select_soundhw (optarg);
3379 case QEMU_OPTION_version:
3384 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3391 case QEMU_OPTION_tpmdev:
3392 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3397 case QEMU_OPTION_mempath:
3400 case QEMU_OPTION_mem_prealloc:
3409 case QEMU_OPTION_DFILTER:
3410 qemu_set_dfilter_ranges(optarg, &error_fatal);
3413 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3415 case QEMU_OPTION_gdb:
3416 add_device_config(DEV_GDB, optarg);
3419 if (is_help_option(optarg)) {
3420 list_data_dirs = true;
3421 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3422 data_dir[data_dir_idx++] = optarg;
3425 case QEMU_OPTION_bios:
3426 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3429 case QEMU_OPTION_singlestep:
3436 keyboard_layout = optarg;
3438 case QEMU_OPTION_localtime:
3441 case QEMU_OPTION_vga:
3450 w = strtol(p, (char **)&p, 10);
3453 error_report("invalid resolution or depth");
3459 h = strtol(p, (char **)&p, 10);
3464 depth = strtol(p, (char **)&p, 10);
3465 if (depth != 8 && depth != 15 && depth != 16 &&
3466 depth != 24 && depth != 32)
3468 } else if (*p == '\0') {
3469 depth = graphic_depth;
3476 graphic_depth = depth;
3479 case QEMU_OPTION_echr:
3482 term_escape_char = strtol(optarg, &r, 0);
3484 printf("Bad argument to echr\n");
3487 case QEMU_OPTION_monitor:
3488 default_monitor = 0;
3489 if (strncmp(optarg, "none", 4)) {
3490 monitor_parse(optarg, "readline", false);
3493 case QEMU_OPTION_qmp:
3494 monitor_parse(optarg, "control", false);
3495 default_monitor = 0;
3497 case QEMU_OPTION_qmp_pretty:
3498 monitor_parse(optarg, "control", true);
3499 default_monitor = 0;
3501 case QEMU_OPTION_mon:
3502 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3507 default_monitor = 0;
3509 case QEMU_OPTION_chardev:
3510 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3516 case QEMU_OPTION_fsdev:
3517 olist = qemu_find_opts("fsdev");
3519 error_report("fsdev support is disabled");
3522 opts = qemu_opts_parse_noisily(olist, optarg, true);
3527 case QEMU_OPTION_virtfs: {
3530 const char *writeout, *sock_fd, *socket;
3532 olist = qemu_find_opts("virtfs");
3534 error_report("virtfs support is disabled");
3537 opts = qemu_opts_parse_noisily(olist, optarg, true);
3542 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3543 qemu_opt_get(opts, "mount_tag") == NULL) {
3544 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3547 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3548 qemu_opt_get(opts, "mount_tag"),
3551 error_report("duplicate fsdev id: %s",
3552 qemu_opt_get(opts, "mount_tag"));
3556 writeout = qemu_opt_get(opts, "writeout");
3558 #ifdef CONFIG_SYNC_FILE_RANGE
3559 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3561 error_report("writeout=immediate not supported "
3562 "on this platform");
3566 qemu_opt_set(fsdev, "fsdriver",
3567 qemu_opt_get(opts, "fsdriver"), &error_abort);
3568 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3570 qemu_opt_set(fsdev, "security_model",
3571 qemu_opt_get(opts, "security_model"),
3573 socket = qemu_opt_get(opts, "socket");
3575 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3577 sock_fd = qemu_opt_get(opts, "sock_fd");
3579 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3582 qemu_opt_set_bool(fsdev, "readonly",
3583 qemu_opt_get_bool(opts, "readonly", 0),
3585 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3587 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3588 qemu_opt_set(device, "fsdev",
3589 qemu_opt_get(opts, "mount_tag"), &error_abort);
3590 qemu_opt_set(device, "mount_tag",
3591 qemu_opt_get(opts, "mount_tag"), &error_abort);
3594 case QEMU_OPTION_virtfs_synth: {
3598 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3601 error_report("duplicate option: %s", "virtfs_synth");
3604 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3606 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3608 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3609 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3610 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3613 case QEMU_OPTION_serial:
3614 add_device_config(DEV_SERIAL, optarg);
3616 if (strncmp(optarg, "mon:", 4) == 0) {
3617 default_monitor = 0;
3620 case QEMU_OPTION_watchdog:
3622 error_report("only one watchdog option may be given");
3627 case QEMU_OPTION_watchdog_action:
3628 if (select_watchdog_action(optarg) == -1) {
3629 error_report("unknown -watchdog-action parameter");
3633 case QEMU_OPTION_virtiocon:
3634 add_device_config(DEV_VIRTCON, optarg);
3635 default_virtcon = 0;
3636 if (strncmp(optarg, "mon:", 4) == 0) {
3637 default_monitor = 0;
3640 case QEMU_OPTION_parallel:
3641 add_device_config(DEV_PARALLEL, optarg);
3642 default_parallel = 0;
3643 if (strncmp(optarg, "mon:", 4) == 0) {
3644 default_monitor = 0;
3647 case QEMU_OPTION_debugcon:
3648 add_device_config(DEV_DEBUGCON, optarg);
3650 case QEMU_OPTION_loadvm:
3653 case QEMU_OPTION_full_screen:
3656 case QEMU_OPTION_no_frame:
3659 case QEMU_OPTION_alt_grab:
3662 case QEMU_OPTION_ctrl_grab:
3665 case QEMU_OPTION_no_quit:
3668 case QEMU_OPTION_sdl:
3670 display_type = DT_SDL;
3673 error_report("SDL support is disabled");
3676 case QEMU_OPTION_pidfile:
3679 case QEMU_OPTION_win2k_hack:
3680 win2k_install_hack = 1;
3682 case QEMU_OPTION_rtc_td_hack: {
3683 static GlobalProperty slew_lost_ticks = {
3684 .driver = "mc146818rtc",
3685 .property = "lost_tick_policy",
3689 qdev_prop_register_global(&slew_lost_ticks);
3692 case QEMU_OPTION_acpitable:
3693 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3698 do_acpitable_option(opts);
3700 case QEMU_OPTION_smbios:
3701 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3706 do_smbios_option(opts);
3708 case QEMU_OPTION_fwcfg:
3709 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3715 case QEMU_OPTION_enable_kvm:
3716 olist = qemu_find_opts("machine");
3717 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3720 case QEMU_OPTION_machine:
3721 olist = qemu_find_opts("machine");
3722 opts = qemu_opts_parse_noisily(olist, optarg, true);
3727 case QEMU_OPTION_no_kvm:
3728 olist = qemu_find_opts("machine");
3729 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3731 case QEMU_OPTION_no_kvm_pit: {
3732 error_report("warning: ignoring deprecated option");
3735 case QEMU_OPTION_no_kvm_pit_reinjection: {
3736 static GlobalProperty kvm_pit_lost_tick_policy = {
3737 .driver = "kvm-pit",
3738 .property = "lost_tick_policy",
3742 error_report("warning: deprecated, replaced by "
3743 "-global kvm-pit.lost_tick_policy=discard");
3744 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3747 case QEMU_OPTION_usb:
3748 olist = qemu_find_opts("machine");
3749 qemu_opts_parse_noisily(olist, "usb=on", false);
3751 case QEMU_OPTION_usbdevice:
3752 olist = qemu_find_opts("machine");
3753 qemu_opts_parse_noisily(olist, "usb=on", false);
3754 add_device_config(DEV_USB, optarg);
3756 case QEMU_OPTION_device:
3757 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3762 case QEMU_OPTION_smp:
3763 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3768 case QEMU_OPTION_vnc:
3769 vnc_parse(optarg, &error_fatal);
3771 case QEMU_OPTION_no_acpi:
3774 case QEMU_OPTION_no_hpet:
3777 case QEMU_OPTION_balloon:
3778 if (balloon_parse(optarg) < 0) {
3779 error_report("unknown -balloon argument %s", optarg);
3783 case QEMU_OPTION_no_reboot:
3786 case QEMU_OPTION_no_shutdown:
3789 case QEMU_OPTION_show_cursor:
3792 case QEMU_OPTION_uuid:
3793 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3794 error_report("failed to parse UUID string: wrong format");
3797 qemu_uuid_set = true;
3799 case QEMU_OPTION_option_rom:
3800 if (nb_option_roms >= MAX_OPTION_ROMS) {
3801 error_report("too many option ROMs");
3804 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3809 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3810 option_rom[nb_option_roms].bootindex =
3811 qemu_opt_get_number(opts, "bootindex", -1);
3812 if (!option_rom[nb_option_roms].name) {
3813 error_report("Option ROM file is not specified");
3818 case QEMU_OPTION_semihosting:
3819 semihosting.enabled = true;
3820 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3822 case QEMU_OPTION_semihosting_config:
3823 semihosting.enabled = true;
3824 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3827 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3829 const char *target = qemu_opt_get(opts, "target");
3830 if (target != NULL) {
3831 if (strcmp("native", target) == 0) {
3832 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3833 } else if (strcmp("gdb", target) == 0) {
3834 semihosting.target = SEMIHOSTING_TARGET_GDB;
3835 } else if (strcmp("auto", target) == 0) {
3836 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3838 error_report("unsupported semihosting-config %s",
3843 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3845 /* Set semihosting argument count and vector */
3846 qemu_opt_foreach(opts, add_semihosting_arg,
3847 &semihosting, NULL);
3849 error_report("unsupported semihosting-config %s", optarg);
3853 case QEMU_OPTION_tdf:
3854 error_report("warning: ignoring deprecated option");
3856 case QEMU_OPTION_name:
3857 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3863 case QEMU_OPTION_prom_env:
3864 if (nb_prom_envs >= MAX_PROM_ENVS) {
3865 error_report("too many prom variables");
3868 prom_envs[nb_prom_envs] = optarg;
3871 case QEMU_OPTION_old_param:
3874 case QEMU_OPTION_clock:
3875 /* Clock options no longer exist. Keep this option for
3876 * backward compatibility.
3879 case QEMU_OPTION_startdate:
3880 configure_rtc_date_offset(optarg, 1);
3882 case QEMU_OPTION_rtc:
3883 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3888 configure_rtc(opts);
3890 case QEMU_OPTION_tb_size:
3891 tcg_tb_size = strtol(optarg, NULL, 0);
3892 if (tcg_tb_size < 0) {
3896 case QEMU_OPTION_icount:
3897 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3903 case QEMU_OPTION_incoming:
3905 runstate_set(RUN_STATE_INMIGRATE);
3909 case QEMU_OPTION_nodefaults:
3912 case QEMU_OPTION_xen_domid:
3913 if (!(xen_available())) {
3914 error_report("Option not supported for this target");
3917 xen_domid = atoi(optarg);
3919 case QEMU_OPTION_xen_create:
3920 if (!(xen_available())) {
3921 error_report("Option not supported for this target");
3924 xen_mode = XEN_CREATE;
3926 case QEMU_OPTION_xen_attach:
3927 if (!(xen_available())) {
3928 error_report("Option not supported for this target");
3931 xen_mode = XEN_ATTACH;
3933 case QEMU_OPTION_trace:
3935 trace_file = trace_opt_parse(optarg);
3937 case QEMU_OPTION_readconfig:
3939 int ret = qemu_read_config_file(optarg);
3941 error_report("read config %s: %s", optarg,
3947 case QEMU_OPTION_spice:
3948 olist = qemu_find_opts("spice");
3950 error_report("spice support is disabled");
3953 opts = qemu_opts_parse_noisily(olist, optarg, false);
3959 case QEMU_OPTION_writeconfig:
3962 if (strcmp(optarg, "-") == 0) {
3965 fp = fopen(optarg, "w");
3967 error_report("open %s: %s", optarg,
3972 qemu_config_write(fp);
3978 case QEMU_OPTION_qtest:
3979 qtest_chrdev = optarg;
3981 case QEMU_OPTION_qtest_log:
3984 case QEMU_OPTION_sandbox:
3985 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3991 case QEMU_OPTION_add_fd:
3993 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3999 error_report("File descriptor passing is disabled on this "
4004 case QEMU_OPTION_object:
4005 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4011 case QEMU_OPTION_realtime:
4012 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4017 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4019 case QEMU_OPTION_msg:
4020 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4025 configure_msg(opts);
4027 case QEMU_OPTION_dump_vmstate:
4028 if (vmstate_dump_file) {
4029 error_report("only one '-dump-vmstate' "
4030 "option may be given");
4033 vmstate_dump_file = fopen(optarg, "w");
4034 if (vmstate_dump_file == NULL) {
4035 error_report("open %s: %s", optarg, strerror(errno));
4040 os_parse_cmd_args(popt->index, optarg);
4045 * Clear error location left behind by the loop.
4046 * Best done right after the loop. Do not insert code here!
4050 replay_configure(icount_opts);
4052 machine_class = select_machine();
4054 set_memory_options(&ram_slots, &maxram_size, machine_class);
4058 if (qemu_init_main_loop(&main_loop_err)) {
4059 error_report_err(main_loop_err);
4063 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4064 parse_sandbox, NULL, NULL)) {
4068 if (qemu_opts_foreach(qemu_find_opts("name"),
4069 parse_name, NULL, NULL)) {
4074 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4075 parse_add_fd, NULL, NULL)) {
4079 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4080 cleanup_add_fd, NULL, NULL)) {
4085 current_machine = MACHINE(object_new(object_class_get_name(
4086 OBJECT_CLASS(machine_class))));
4087 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4090 object_property_add_child(object_get_root(), "machine",
4091 OBJECT(current_machine), &error_abort);
4093 if (machine_class->minimum_page_bits) {
4094 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4095 /* This would be a board error: specifying a minimum smaller than
4096 * a target's compile-time fixed setting.
4098 g_assert_not_reached();
4102 cpu_exec_init_all();
4104 if (machine_class->hw_version) {
4105 qemu_set_hw_version(machine_class->hw_version);
4108 if (cpu_model && is_help_option(cpu_model)) {
4109 list_cpus(stdout, &fprintf, cpu_model);
4113 if (!trace_init_backends()) {
4116 trace_init_file(trace_file);
4118 /* Open the logfile at this point and set the log mask if necessary.
4121 qemu_set_log_filename(log_file, &error_fatal);
4126 mask = qemu_str_to_log_mask(log_mask);
4128 qemu_print_log_usage(stdout);
4136 /* If no data_dir is specified then try to find it relative to the
4138 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4139 data_dir[data_dir_idx] = os_find_datadir();
4140 if (data_dir[data_dir_idx] != NULL) {
4144 /* If all else fails use the install path specified when building. */
4145 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4146 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4149 /* -L help lists the data directories and exits. */
4150 if (list_data_dirs) {
4151 for (i = 0; i < data_dir_idx; i++) {
4152 printf("%s\n", data_dir[i]);
4157 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4159 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4160 if (max_cpus > machine_class->max_cpus) {
4161 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4162 "supported by machine '%s' (%d)", max_cpus,
4163 machine_class->name, machine_class->max_cpus);
4168 * Get the default machine options from the machine if it is not already
4169 * specified either by the configuration file or by the command line.
4171 if (machine_class->default_machine_opts) {
4172 qemu_opts_set_defaults(qemu_find_opts("machine"),
4173 machine_class->default_machine_opts, 0);
4176 qemu_opts_foreach(qemu_find_opts("device"),
4177 default_driver_check, NULL, NULL);
4178 qemu_opts_foreach(qemu_find_opts("global"),
4179 default_driver_check, NULL, NULL);
4181 if (!vga_model && !default_vga) {
4182 vga_interface_type = VGA_DEVICE;
4184 if (!has_defaults || machine_class->no_serial) {
4187 if (!has_defaults || machine_class->no_parallel) {
4188 default_parallel = 0;
4190 if (!has_defaults || !machine_class->use_virtcon) {
4191 default_virtcon = 0;
4193 if (!has_defaults || !machine_class->use_sclp) {
4196 if (!has_defaults || machine_class->no_floppy) {
4199 if (!has_defaults || machine_class->no_cdrom) {
4202 if (!has_defaults || machine_class->no_sdcard) {
4205 if (!has_defaults) {
4206 default_monitor = 0;
4211 if (is_daemonized()) {
4212 /* According to documentation and historically, -nographic redirects
4213 * serial port, parallel port and monitor to stdio, which does not work
4214 * with -daemonize. We can redirect these to null instead, but since
4215 * -nographic is legacy, let's just error out.
4216 * We disallow -nographic only if all other ports are not redirected
4217 * explicitly, to not break existing legacy setups which uses
4218 * -nographic _and_ redirects all ports explicitly - this is valid
4219 * usage, -nographic is just a no-op in this case.
4222 && (default_parallel || default_serial
4223 || default_monitor || default_virtcon)) {
4224 error_report("-nographic cannot be used with -daemonize");
4227 #ifdef CONFIG_CURSES
4228 if (display_type == DT_CURSES) {
4229 error_report("curses display cannot be used with -daemonize");
4236 if (default_parallel)
4237 add_device_config(DEV_PARALLEL, "null");
4238 if (default_serial && default_monitor) {
4239 add_device_config(DEV_SERIAL, "mon:stdio");
4240 } else if (default_virtcon && default_monitor) {
4241 add_device_config(DEV_VIRTCON, "mon:stdio");
4242 } else if (default_sclp && default_monitor) {
4243 add_device_config(DEV_SCLP, "mon:stdio");
4246 add_device_config(DEV_SERIAL, "stdio");
4247 if (default_virtcon)
4248 add_device_config(DEV_VIRTCON, "stdio");
4250 add_device_config(DEV_SCLP, "stdio");
4252 if (default_monitor)
4253 monitor_parse("stdio", "readline", false);
4257 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4258 if (default_parallel)
4259 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4260 if (default_monitor)
4261 monitor_parse("vc:80Cx24C", "readline", false);
4262 if (default_virtcon)
4263 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4265 add_device_config(DEV_SCLP, "vc:80Cx24C");
4269 #if defined(CONFIG_VNC)
4270 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4274 if (display_type == DT_DEFAULT && !display_remote) {
4275 #if defined(CONFIG_GTK)
4276 display_type = DT_GTK;
4277 #elif defined(CONFIG_SDL)
4278 display_type = DT_SDL;
4279 #elif defined(CONFIG_COCOA)
4280 display_type = DT_COCOA;
4281 #elif defined(CONFIG_VNC)
4282 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4284 display_type = DT_NONE;
4288 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4289 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4290 "for SDL, ignoring option");
4292 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4293 error_report("-no-quit is only valid for GTK and SDL, "
4297 if (display_type == DT_GTK) {
4298 early_gtk_display_init(request_opengl);
4301 if (display_type == DT_SDL) {
4302 sdl_display_early_init(request_opengl);
4305 if (request_opengl == 1 && display_opengl == 0) {
4306 #if defined(CONFIG_OPENGL)
4307 error_report("OpenGL is not supported by the display");
4309 error_report("OpenGL support is disabled");
4317 if (qemu_opts_foreach(qemu_find_opts("object"),
4318 user_creatable_add_opts_foreach,
4319 object_create_initial, NULL)) {
4323 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4324 chardev_init_func, NULL, NULL)) {
4328 #ifdef CONFIG_VIRTFS
4329 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4330 fsdev_init_func, NULL, NULL)) {
4335 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4336 error_report("could not acquire pid file: %s", strerror(errno));
4340 if (qemu_opts_foreach(qemu_find_opts("device"),
4341 device_help_func, NULL, NULL)) {
4345 machine_opts = qemu_get_machine_opts();
4346 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4348 object_unref(OBJECT(current_machine));
4352 configure_accelerator(current_machine);
4355 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4358 machine_opts = qemu_get_machine_opts();
4359 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4360 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4361 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4362 bios_name = qemu_opt_get(machine_opts, "firmware");
4364 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4366 boot_order = qemu_opt_get(opts, "order");
4368 validate_bootdevices(boot_order, &error_fatal);
4371 boot_once = qemu_opt_get(opts, "once");
4373 validate_bootdevices(boot_once, &error_fatal);
4376 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4377 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4381 boot_order = machine_class->default_boot_order;
4384 if (!kernel_cmdline) {
4385 kernel_cmdline = "";
4386 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4389 linux_boot = (kernel_filename != NULL);
4391 if (!linux_boot && *kernel_cmdline != '\0') {
4392 error_report("-append only allowed with -kernel option");
4396 if (!linux_boot && initrd_filename != NULL) {
4397 error_report("-initrd only allowed with -kernel option");
4401 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4402 /* fall back to the -kernel/-append */
4403 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4406 os_set_line_buffering();
4408 /* spice needs the timers to be initialized by this point */
4413 if (kvm_enabled() || xen_enabled()) {
4414 error_report("-icount is not allowed with kvm or xen");
4417 configure_icount(icount_opts, &error_abort);
4418 qemu_opts_del(icount_opts);
4422 QemuOptsList *net = qemu_find_opts("net");
4423 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4425 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4429 if (net_init_clients() < 0) {
4433 if (qemu_opts_foreach(qemu_find_opts("object"),
4434 user_creatable_add_opts_foreach,
4435 object_create_delayed, NULL)) {
4440 if (tpm_init() < 0) {
4445 /* init the bluetooth world */
4446 if (foreach_device_config(DEV_BT, bt_parse))
4449 if (!xen_enabled()) {
4450 /* On 32-bit hosts, QEMU is limited by virtual address space */
4451 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4452 error_report("at most 2047 MB RAM can be simulated");
4460 /* If the currently selected machine wishes to override the units-per-bus
4461 * property of its default HBA interface type, do so now. */
4462 if (machine_class->units_per_default_bus) {
4463 override_max_devs(machine_class->block_default_type,
4464 machine_class->units_per_default_bus);
4467 /* open the virtual block devices */
4468 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4469 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4472 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4473 &machine_class->block_default_type, NULL)) {
4477 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4479 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4480 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4482 parse_numa_opts(machine_class);
4484 if (qemu_opts_foreach(qemu_find_opts("mon"),
4485 mon_init_func, NULL, NULL)) {
4489 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4491 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4493 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4495 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4498 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4501 /* If no default VGA is requested, the default is "none". */
4503 if (machine_class->default_display) {
4504 vga_model = machine_class->default_display;
4505 } else if (vga_interface_available(VGA_CIRRUS)) {
4506 vga_model = "cirrus";
4507 } else if (vga_interface_available(VGA_STD)) {
4512 select_vgahw(vga_model);
4516 i = select_watchdog(watchdog);
4518 exit (i == 1 ? 1 : 0);
4521 machine_register_compat_props(current_machine);
4523 qemu_opts_foreach(qemu_find_opts("global"),
4524 global_init_func, NULL, NULL);
4526 /* This checkpoint is required by replay to separate prior clock
4527 reading from the other reads, because timer polling functions query
4528 clock values from the log. */
4529 replay_checkpoint(CHECKPOINT_INIT);
4530 qdev_machine_init();
4532 current_machine->ram_size = ram_size;
4533 current_machine->maxram_size = maxram_size;
4534 current_machine->ram_slots = ram_slots;
4535 current_machine->boot_order = boot_order;
4536 current_machine->cpu_model = cpu_model;
4538 machine_class->init(current_machine);
4544 cpu_synchronize_all_post_init();
4546 numa_post_machine_init();
4548 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4549 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4553 /* init USB devices */
4554 if (machine_usb(current_machine)) {
4555 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4559 /* Check if IGD GFX passthrough. */
4562 /* init generic devices */
4563 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4564 if (qemu_opts_foreach(qemu_find_opts("device"),
4565 device_init_func, NULL, NULL)) {
4568 rom_reset_order_override();
4570 /* Did we create any drives that we failed to create a device for? */
4571 drive_check_orphaned();
4573 /* Don't warn about the default network setup that you get if
4574 * no command line -net or -netdev options are specified. There
4575 * are two cases that we would otherwise complain about:
4576 * (1) board doesn't support a NIC but the implicit "-net nic"
4578 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4579 * sets up a nic that isn't connected to anything.
4582 net_check_clients();
4587 qemu_boot_set(boot_once, &error_fatal);
4588 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4591 ds = init_displaystate();
4593 /* init local displays */
4594 switch (display_type) {
4596 curses_display_init(ds, full_screen);
4599 sdl_display_init(ds, full_screen, no_frame);
4602 cocoa_display_init(ds, full_screen);
4605 gtk_display_init(ds, full_screen, grab_on_hover);
4611 /* must be after terminal init, SDL library changes signal handlers */
4612 os_setup_signal_handling();
4614 /* init remote displays */
4616 qemu_opts_foreach(qemu_find_opts("vnc"),
4617 vnc_init_func, NULL, NULL);
4621 qemu_spice_display_init();
4624 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4628 qdev_machine_creation_done();
4630 /* TODO: once all bus devices are qdevified, this should be done
4631 * when bus is created by qdev.c */
4632 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4633 qemu_run_machine_init_done_notifiers();
4635 if (rom_check_and_register_reset() != 0) {
4636 error_report("rom check and register reset failed");
4642 /* This checkpoint is required by replay to separate prior clock
4643 reading from the other reads, because timer polling functions query
4644 clock values from the log. */
4645 replay_checkpoint(CHECKPOINT_RESET);
4646 qemu_system_reset(VMRESET_SILENT);
4647 register_global_state();
4649 if (load_vmstate(loadvm) < 0) {
4654 qdev_prop_check_globals();
4655 if (vmstate_dump_file) {
4657 dump_vmstate_json_to_file(vmstate_dump_file);
4662 Error *local_err = NULL;
4663 qemu_start_incoming_migration(incoming, &local_err);
4665 error_reportf_err(local_err, "-incoming %s: ", incoming);
4668 } else if (autostart) {
4675 replay_disable_events();
4676 iothread_stop_all();
4682 /* vhost-user must be cleaned up before chardevs. */