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 "migration/colo.h"
94 #include "sysemu/kvm.h"
95 #include "qapi/qmp/qjson.h"
96 #include "qemu/option.h"
97 #include "qemu/config-file.h"
98 #include "qemu-options.h"
99 #include "qmp-commands.h"
100 #include "qemu/main-loop.h"
102 #include "fsdev/qemu-fsdev.h"
104 #include "sysemu/qtest.h"
106 #include "disas/disas.h"
109 #include "slirp/libslirp.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/arch_init.h"
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "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 },
616 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
618 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
622 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
623 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
626 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
627 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
629 { RUN_STATE_PAUSED, RUN_STATE_COLO},
631 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
632 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
636 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
639 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
640 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
641 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
644 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
645 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_COLO, RUN_STATE_RUNNING },
649 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
650 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
651 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
652 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
653 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
655 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
656 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
657 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
658 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
659 { RUN_STATE_RUNNING, RUN_STATE_COLO},
661 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
663 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
664 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
667 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
668 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
669 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
670 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
671 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
672 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
674 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
675 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
679 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
680 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
683 { RUN_STATE__MAX, RUN_STATE__MAX },
686 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
688 bool runstate_check(RunState state)
690 return current_run_state == state;
693 bool runstate_store(char *str, size_t size)
695 const char *state = RunState_lookup[current_run_state];
696 size_t len = strlen(state) + 1;
701 memcpy(str, state, len);
705 static void runstate_init(void)
707 const RunStateTransition *p;
709 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
710 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
711 runstate_valid_transitions[p->from][p->to] = true;
714 qemu_mutex_init(&vmstop_lock);
717 /* This function will abort() on invalid state transitions */
718 void runstate_set(RunState new_state)
720 assert(new_state < RUN_STATE__MAX);
722 if (current_run_state == new_state) {
726 if (!runstate_valid_transitions[current_run_state][new_state]) {
727 error_report("invalid runstate transition: '%s' -> '%s'",
728 RunState_lookup[current_run_state],
729 RunState_lookup[new_state]);
732 trace_runstate_set(new_state);
733 current_run_state = new_state;
736 int runstate_is_running(void)
738 return runstate_check(RUN_STATE_RUNNING);
741 bool runstate_needs_reset(void)
743 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
744 runstate_check(RUN_STATE_SHUTDOWN);
747 StatusInfo *qmp_query_status(Error **errp)
749 StatusInfo *info = g_malloc0(sizeof(*info));
751 info->running = runstate_is_running();
752 info->singlestep = singlestep;
753 info->status = current_run_state;
758 static bool qemu_vmstop_requested(RunState *r)
760 qemu_mutex_lock(&vmstop_lock);
761 *r = vmstop_requested;
762 vmstop_requested = RUN_STATE__MAX;
763 qemu_mutex_unlock(&vmstop_lock);
764 return *r < RUN_STATE__MAX;
767 void qemu_system_vmstop_request_prepare(void)
769 qemu_mutex_lock(&vmstop_lock);
772 void qemu_system_vmstop_request(RunState state)
774 vmstop_requested = state;
775 qemu_mutex_unlock(&vmstop_lock);
783 qemu_vmstop_requested(&requested);
784 if (runstate_is_running() && requested == RUN_STATE__MAX) {
788 /* Ensure that a STOP/RESUME pair of events is emitted if a
789 * vmstop request was pending. The BLOCK_IO_ERROR event, for
790 * example, according to documentation is always followed by
793 if (runstate_is_running()) {
794 qapi_event_send_stop(&error_abort);
796 replay_enable_events();
798 runstate_set(RUN_STATE_RUNNING);
799 vm_state_notify(1, RUN_STATE_RUNNING);
803 qapi_event_send_resume(&error_abort);
807 /***********************************************************/
808 /* real time host monotonic timer */
810 static time_t qemu_time(void)
812 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
815 /***********************************************************/
816 /* host time/date access */
817 void qemu_get_timedate(struct tm *tm, int offset)
819 time_t ti = qemu_time();
822 if (rtc_date_offset == -1) {
826 localtime_r(&ti, tm);
828 ti -= rtc_date_offset;
833 int qemu_timedate_diff(struct tm *tm)
837 if (rtc_date_offset == -1)
839 seconds = mktimegm(tm);
842 tmp.tm_isdst = -1; /* use timezone to figure it out */
843 seconds = mktime(&tmp);
846 seconds = mktimegm(tm) + rtc_date_offset;
848 return seconds - qemu_time();
851 static void configure_rtc_date_offset(const char *startdate, int legacy)
853 time_t rtc_start_date;
856 if (!strcmp(startdate, "now") && legacy) {
857 rtc_date_offset = -1;
859 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
867 } else if (sscanf(startdate, "%d-%d-%d",
879 rtc_start_date = mktimegm(&tm);
880 if (rtc_start_date == -1) {
882 error_report("invalid date format");
883 error_printf("valid formats: "
884 "'2006-06-17T16:01:21' or '2006-06-17'\n");
887 rtc_date_offset = qemu_time() - rtc_start_date;
891 static void configure_rtc(QemuOpts *opts)
895 value = qemu_opt_get(opts, "base");
897 if (!strcmp(value, "utc")) {
899 } else if (!strcmp(value, "localtime")) {
900 Error *blocker = NULL;
902 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
903 "-rtc base=localtime");
904 replay_add_blocker(blocker);
906 configure_rtc_date_offset(value, 0);
909 value = qemu_opt_get(opts, "clock");
911 if (!strcmp(value, "host")) {
912 rtc_clock = QEMU_CLOCK_HOST;
913 } else if (!strcmp(value, "rt")) {
914 rtc_clock = QEMU_CLOCK_REALTIME;
915 } else if (!strcmp(value, "vm")) {
916 rtc_clock = QEMU_CLOCK_VIRTUAL;
918 error_report("invalid option value '%s'", value);
922 value = qemu_opt_get(opts, "driftfix");
924 if (!strcmp(value, "slew")) {
925 static GlobalProperty slew_lost_ticks = {
926 .driver = "mc146818rtc",
927 .property = "lost_tick_policy",
931 qdev_prop_register_global(&slew_lost_ticks);
932 } else if (!strcmp(value, "none")) {
933 /* discard is default */
935 error_report("invalid option value '%s'", value);
941 /***********************************************************/
942 /* Bluetooth support */
945 static struct HCIInfo *hci_table[MAX_NICS];
947 struct HCIInfo *qemu_next_hci(void)
949 if (cur_hci == nb_hcis)
952 return hci_table[cur_hci++];
955 static int bt_hci_parse(const char *str)
960 if (nb_hcis >= MAX_NICS) {
961 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
974 bdaddr.b[5] = 0x56 + nb_hcis;
975 hci->bdaddr_set(hci, bdaddr.b);
977 hci_table[nb_hcis++] = hci;
982 static void bt_vhci_add(int vlan_id)
984 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
987 error_report("warning: adding a VHCI to an empty scatternet %i",
990 bt_vhci_init(bt_new_hci(vlan));
993 static struct bt_device_s *bt_device_add(const char *opt)
995 struct bt_scatternet_s *vlan;
997 char *endp = strstr(opt, ",vlan=");
998 int len = (endp ? endp - opt : strlen(opt)) + 1;
1001 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1004 vlan_id = strtol(endp + 6, &endp, 0);
1006 error_report("unrecognised bluetooth vlan Id");
1011 vlan = qemu_find_bt_vlan(vlan_id);
1014 error_report("warning: adding a slave device to an empty scatternet %i",
1017 if (!strcmp(devname, "keyboard"))
1018 return bt_keyboard_init(vlan);
1020 error_report("unsupported bluetooth device '%s'", devname);
1024 static int bt_parse(const char *opt)
1026 const char *endp, *p;
1029 if (strstart(opt, "hci", &endp)) {
1030 if (!*endp || *endp == ',') {
1032 if (!strstart(endp, ",vlan=", 0))
1035 return bt_hci_parse(opt);
1037 } else if (strstart(opt, "vhci", &endp)) {
1038 if (!*endp || *endp == ',') {
1040 if (strstart(endp, ",vlan=", &p)) {
1041 vlan = strtol(p, (char **) &endp, 0);
1043 error_report("bad scatternet '%s'", p);
1047 error_report("bad parameter '%s'", endp + 1);
1056 } else if (strstart(opt, "device:", &endp))
1057 return !bt_device_add(endp);
1059 error_report("bad bluetooth parameter '%s'", opt);
1063 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1065 /* FIXME: change this to true for 1.3 */
1066 if (qemu_opt_get_bool(opts, "enable", false)) {
1067 #ifdef CONFIG_SECCOMP
1068 if (seccomp_start() < 0) {
1069 error_report("failed to install seccomp syscall filter "
1074 error_report("seccomp support is disabled");
1082 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1084 const char *proc_name;
1086 if (qemu_opt_get(opts, "debug-threads")) {
1087 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1089 qemu_name = qemu_opt_get(opts, "guest");
1091 proc_name = qemu_opt_get(opts, "process");
1093 os_set_proc_name(proc_name);
1099 bool defaults_enabled(void)
1101 return has_defaults;
1105 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1107 int fd, dupfd, flags;
1109 const char *fd_opaque = NULL;
1112 fd = qemu_opt_get_number(opts, "fd", -1);
1113 fdset_id = qemu_opt_get_number(opts, "set", -1);
1114 fd_opaque = qemu_opt_get(opts, "opaque");
1117 error_report("fd option is required and must be non-negative");
1121 if (fd <= STDERR_FILENO) {
1122 error_report("fd cannot be a standard I/O stream");
1127 * All fds inherited across exec() necessarily have FD_CLOEXEC
1128 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1130 flags = fcntl(fd, F_GETFD);
1131 if (flags == -1 || (flags & FD_CLOEXEC)) {
1132 error_report("fd is not valid or already in use");
1137 error_report("set option is required and must be non-negative");
1141 #ifdef F_DUPFD_CLOEXEC
1142 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1146 qemu_set_cloexec(dupfd);
1150 error_report("error duplicating fd: %s", strerror(errno));
1154 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1155 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1162 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1166 fd = qemu_opt_get_number(opts, "fd", -1);
1173 /***********************************************************/
1174 /* QEMU Block devices */
1176 #define HD_OPTS "media=disk"
1177 #define CDROM_OPTS "media=cdrom"
1179 #define PFLASH_OPTS ""
1183 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1185 BlockInterfaceType *block_default_type = opaque;
1187 return drive_new(opts, *block_default_type) == NULL;
1190 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1192 if (qemu_opt_get(opts, "snapshot") == NULL) {
1193 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1198 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1199 int index, const char *optstr)
1204 if (!enable || drive_get_by_index(type, index)) {
1208 opts = drive_add(type, index, NULL, optstr);
1210 drive_enable_snapshot(NULL, opts, NULL);
1213 dinfo = drive_new(opts, type);
1217 dinfo->is_default = true;
1221 static QemuOptsList qemu_smp_opts = {
1223 .implied_opt_name = "cpus",
1224 .merge_lists = true,
1225 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1229 .type = QEMU_OPT_NUMBER,
1232 .type = QEMU_OPT_NUMBER,
1235 .type = QEMU_OPT_NUMBER,
1238 .type = QEMU_OPT_NUMBER,
1241 .type = QEMU_OPT_NUMBER,
1243 { /*End of list */ }
1247 static void smp_parse(QemuOpts *opts)
1250 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1251 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1252 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1253 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1255 /* compute missing values, prefer sockets over cores over threads */
1256 if (cpus == 0 || sockets == 0) {
1257 sockets = sockets > 0 ? sockets : 1;
1258 cores = cores > 0 ? cores : 1;
1259 threads = threads > 0 ? threads : 1;
1261 cpus = cores * threads * sockets;
1263 } else if (cores == 0) {
1264 threads = threads > 0 ? threads : 1;
1265 cores = cpus / (sockets * threads);
1266 cores = cores > 0 ? cores : 1;
1267 } else if (threads == 0) {
1268 threads = cpus / (cores * sockets);
1269 threads = threads > 0 ? threads : 1;
1270 } else if (sockets * cores * threads < cpus) {
1271 error_report("cpu topology: "
1272 "sockets (%u) * cores (%u) * threads (%u) < "
1274 sockets, cores, threads, cpus);
1278 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1280 if (max_cpus > MAX_CPUMASK_BITS) {
1281 error_report("unsupported number of maxcpus");
1285 if (max_cpus < cpus) {
1286 error_report("maxcpus must be equal to or greater than smp");
1290 if (sockets * cores * threads > max_cpus) {
1291 error_report("cpu topology: "
1292 "sockets (%u) * cores (%u) * threads (%u) > "
1294 sockets, cores, threads, max_cpus);
1300 smp_threads = threads;
1304 Error *blocker = NULL;
1305 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1306 replay_add_blocker(blocker);
1310 static void realtime_init(void)
1313 if (os_mlock() < 0) {
1314 error_report("locking memory failed");
1321 static void configure_msg(QemuOpts *opts)
1323 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1326 /***********************************************************/
1329 typedef struct SemihostingConfig {
1331 SemihostingTarget target;
1334 const char *cmdline; /* concatenated argv */
1335 } SemihostingConfig;
1337 static SemihostingConfig semihosting;
1339 bool semihosting_enabled(void)
1341 return semihosting.enabled;
1344 SemihostingTarget semihosting_get_target(void)
1346 return semihosting.target;
1349 const char *semihosting_get_arg(int i)
1351 if (i >= semihosting.argc) {
1354 return semihosting.argv[i];
1357 int semihosting_get_argc(void)
1359 return semihosting.argc;
1362 const char *semihosting_get_cmdline(void)
1364 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1365 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1367 return semihosting.cmdline;
1370 static int add_semihosting_arg(void *opaque,
1371 const char *name, const char *val,
1374 SemihostingConfig *s = opaque;
1375 if (strcmp(name, "arg") == 0) {
1377 /* one extra element as g_strjoinv() expects NULL-terminated array */
1378 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1379 s->argv[s->argc - 1] = val;
1380 s->argv[s->argc] = NULL;
1385 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1386 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1391 add_semihosting_arg(&semihosting, "arg", file, NULL);
1393 /* split -append and initialize argv[1..n] */
1394 cmd_token = strtok(g_strdup(cmd), " ");
1396 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1397 cmd_token = strtok(NULL, " ");
1401 /* Now we still need this for compatibility with XEN. */
1402 bool has_igd_gfx_passthru;
1403 static void igd_gfx_passthru(void)
1405 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1408 /***********************************************************/
1411 static int usb_device_add(const char *devname)
1413 USBDevice *dev = NULL;
1414 #ifndef CONFIG_LINUX
1418 if (!machine_usb(current_machine)) {
1422 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1423 dev = usbdevice_create(devname);
1427 /* the other ones */
1428 #ifndef CONFIG_LINUX
1429 /* only the linux version is qdev-ified, usb-bsd still needs this */
1430 if (strstart(devname, "host:", &p)) {
1431 dev = usb_host_device_open(usb_bus_find(-1), p);
1441 static int usb_device_del(const char *devname)
1446 if (strstart(devname, "host:", &p)) {
1450 if (!machine_usb(current_machine)) {
1454 p = strchr(devname, '.');
1457 bus_num = strtoul(devname, NULL, 0);
1458 addr = strtoul(p + 1, NULL, 0);
1460 return usb_device_delete_addr(bus_num, addr);
1463 static int usb_parse(const char *cmdline)
1466 r = usb_device_add(cmdline);
1468 error_report("could not add USB device '%s'", cmdline);
1473 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1475 const char *devname = qdict_get_str(qdict, "devname");
1476 if (usb_device_add(devname) < 0) {
1477 error_report("could not add USB device '%s'", devname);
1481 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1483 const char *devname = qdict_get_str(qdict, "devname");
1484 if (usb_device_del(devname) < 0) {
1485 error_report("could not delete USB device '%s'", devname);
1489 /***********************************************************/
1490 /* machine registration */
1492 MachineState *current_machine;
1494 static MachineClass *find_machine(const char *name)
1496 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1497 MachineClass *mc = NULL;
1499 for (el = machines; el; el = el->next) {
1500 MachineClass *temp = el->data;
1502 if (!strcmp(temp->name, name)) {
1507 !strcmp(temp->alias, name)) {
1513 g_slist_free(machines);
1517 MachineClass *find_default_machine(void)
1519 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1520 MachineClass *mc = NULL;
1522 for (el = machines; el; el = el->next) {
1523 MachineClass *temp = el->data;
1525 if (temp->is_default) {
1531 g_slist_free(machines);
1535 MachineInfoList *qmp_query_machines(Error **errp)
1537 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1538 MachineInfoList *mach_list = NULL;
1540 for (el = machines; el; el = el->next) {
1541 MachineClass *mc = el->data;
1542 MachineInfoList *entry;
1545 info = g_malloc0(sizeof(*info));
1546 if (mc->is_default) {
1547 info->has_is_default = true;
1548 info->is_default = true;
1552 info->has_alias = true;
1553 info->alias = g_strdup(mc->alias);
1556 info->name = g_strdup(mc->name);
1557 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1558 info->hotpluggable_cpus = !!mc->query_hotpluggable_cpus;
1560 entry = g_malloc0(sizeof(*entry));
1561 entry->value = info;
1562 entry->next = mach_list;
1566 g_slist_free(machines);
1570 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1572 ObjectProperty *prop;
1573 ObjectPropertyIterator iter;
1575 if (!qemu_opt_has_help_opt(opts)) {
1579 object_property_iter_init(&iter, OBJECT(machine));
1580 while ((prop = object_property_iter_next(&iter))) {
1585 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1586 prop->name, prop->type);
1587 if (prop->description) {
1588 error_printf(" (%s)\n", prop->description);
1597 /***********************************************************/
1598 /* main execution loop */
1600 struct vm_change_state_entry {
1601 VMChangeStateHandler *cb;
1603 QLIST_ENTRY (vm_change_state_entry) entries;
1606 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1608 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1611 VMChangeStateEntry *e;
1613 e = g_malloc0(sizeof (*e));
1617 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1621 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1623 QLIST_REMOVE (e, entries);
1627 void vm_state_notify(int running, RunState state)
1629 VMChangeStateEntry *e, *next;
1631 trace_vm_state_notify(running, state);
1633 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1634 e->cb(e->opaque, running, state);
1638 /* reset/shutdown handler */
1640 typedef struct QEMUResetEntry {
1641 QTAILQ_ENTRY(QEMUResetEntry) entry;
1642 QEMUResetHandler *func;
1646 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1647 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1648 static int reset_requested;
1649 static int shutdown_requested, shutdown_signal = -1;
1650 static pid_t shutdown_pid;
1651 static int powerdown_requested;
1652 static int debug_requested;
1653 static int suspend_requested;
1654 static WakeupReason wakeup_reason;
1655 static NotifierList powerdown_notifiers =
1656 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1657 static NotifierList suspend_notifiers =
1658 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1659 static NotifierList wakeup_notifiers =
1660 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1661 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1663 int qemu_shutdown_requested_get(void)
1665 return shutdown_requested;
1668 int qemu_reset_requested_get(void)
1670 return reset_requested;
1673 static int qemu_shutdown_requested(void)
1675 return atomic_xchg(&shutdown_requested, 0);
1678 static void qemu_kill_report(void)
1680 if (!qtest_driver() && shutdown_signal != -1) {
1681 if (shutdown_pid == 0) {
1682 /* This happens for eg ^C at the terminal, so it's worth
1683 * avoiding printing an odd message in that case.
1685 error_report("terminating on signal %d", shutdown_signal);
1687 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1689 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1690 shutdown_signal, shutdown_pid,
1691 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1692 g_free(shutdown_cmd);
1694 shutdown_signal = -1;
1698 static int qemu_reset_requested(void)
1700 int r = reset_requested;
1701 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1702 reset_requested = 0;
1708 static int qemu_suspend_requested(void)
1710 int r = suspend_requested;
1711 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1712 suspend_requested = 0;
1718 static WakeupReason qemu_wakeup_requested(void)
1720 return wakeup_reason;
1723 static int qemu_powerdown_requested(void)
1725 int r = powerdown_requested;
1726 powerdown_requested = 0;
1730 static int qemu_debug_requested(void)
1732 int r = debug_requested;
1733 debug_requested = 0;
1737 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1739 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1742 re->opaque = opaque;
1743 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1746 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1750 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1751 if (re->func == func && re->opaque == opaque) {
1752 QTAILQ_REMOVE(&reset_handlers, re, entry);
1759 void qemu_devices_reset(void)
1761 QEMUResetEntry *re, *nre;
1763 /* reset all devices */
1764 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1765 re->func(re->opaque);
1769 void qemu_system_reset(bool report)
1773 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1775 cpu_synchronize_all_states();
1777 if (mc && mc->reset) {
1780 qemu_devices_reset();
1783 qapi_event_send_reset(&error_abort);
1785 cpu_synchronize_all_post_reset();
1788 void qemu_system_guest_panicked(void)
1791 current_cpu->crash_occurred = true;
1793 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1794 vm_stop(RUN_STATE_GUEST_PANICKED);
1796 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1798 qemu_system_shutdown_request();
1802 void qemu_system_reset_request(void)
1805 shutdown_requested = 1;
1807 reset_requested = 1;
1810 qemu_notify_event();
1813 static void qemu_system_suspend(void)
1816 notifier_list_notify(&suspend_notifiers, NULL);
1817 runstate_set(RUN_STATE_SUSPENDED);
1818 qapi_event_send_suspend(&error_abort);
1821 void qemu_system_suspend_request(void)
1823 if (runstate_check(RUN_STATE_SUSPENDED)) {
1826 suspend_requested = 1;
1828 qemu_notify_event();
1831 void qemu_register_suspend_notifier(Notifier *notifier)
1833 notifier_list_add(&suspend_notifiers, notifier);
1836 void qemu_system_wakeup_request(WakeupReason reason)
1838 trace_system_wakeup_request(reason);
1840 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1843 if (!(wakeup_reason_mask & (1 << reason))) {
1846 runstate_set(RUN_STATE_RUNNING);
1847 wakeup_reason = reason;
1848 qemu_notify_event();
1851 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1854 wakeup_reason_mask |= (1 << reason);
1856 wakeup_reason_mask &= ~(1 << reason);
1860 void qemu_register_wakeup_notifier(Notifier *notifier)
1862 notifier_list_add(&wakeup_notifiers, notifier);
1865 void qemu_system_killed(int signal, pid_t pid)
1867 shutdown_signal = signal;
1871 /* Cannot call qemu_system_shutdown_request directly because
1872 * we are in a signal handler.
1874 shutdown_requested = 1;
1875 qemu_notify_event();
1878 void qemu_system_shutdown_request(void)
1880 trace_qemu_system_shutdown_request();
1881 replay_shutdown_request();
1882 shutdown_requested = 1;
1883 qemu_notify_event();
1886 static void qemu_system_powerdown(void)
1888 qapi_event_send_powerdown(&error_abort);
1889 notifier_list_notify(&powerdown_notifiers, NULL);
1892 void qemu_system_powerdown_request(void)
1894 trace_qemu_system_powerdown_request();
1895 powerdown_requested = 1;
1896 qemu_notify_event();
1899 void qemu_register_powerdown_notifier(Notifier *notifier)
1901 notifier_list_add(&powerdown_notifiers, notifier);
1904 void qemu_system_debug_request(void)
1906 debug_requested = 1;
1907 qemu_notify_event();
1910 static bool main_loop_should_exit(void)
1913 if (qemu_debug_requested()) {
1914 vm_stop(RUN_STATE_DEBUG);
1916 if (qemu_suspend_requested()) {
1917 qemu_system_suspend();
1919 if (qemu_shutdown_requested()) {
1921 qapi_event_send_shutdown(&error_abort);
1923 vm_stop(RUN_STATE_SHUTDOWN);
1928 if (qemu_reset_requested()) {
1930 qemu_system_reset(VMRESET_REPORT);
1932 if (!runstate_check(RUN_STATE_RUNNING) &&
1933 !runstate_check(RUN_STATE_INMIGRATE)) {
1934 runstate_set(RUN_STATE_PRELAUNCH);
1937 if (qemu_wakeup_requested()) {
1939 qemu_system_reset(VMRESET_SILENT);
1940 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1941 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1943 qapi_event_send_wakeup(&error_abort);
1945 if (qemu_powerdown_requested()) {
1946 qemu_system_powerdown();
1948 if (qemu_vmstop_requested(&r)) {
1954 static void main_loop(void)
1958 #ifdef CONFIG_PROFILER
1962 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1963 #ifdef CONFIG_PROFILER
1964 ti = profile_getclock();
1966 last_io = main_loop_wait(nonblocking);
1967 #ifdef CONFIG_PROFILER
1968 dev_time += profile_getclock() - ti;
1970 } while (!main_loop_should_exit());
1973 static void version(void)
1975 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1976 QEMU_COPYRIGHT "\n");
1979 static void help(int exitcode)
1982 printf("usage: %s [options] [disk_image]\n\n"
1983 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1984 error_get_progname());
1986 #define QEMU_OPTIONS_GENERATE_HELP
1987 #include "qemu-options-wrapper.h"
1989 printf("\nDuring emulation, the following keys are useful:\n"
1990 "ctrl-alt-f toggle full screen\n"
1991 "ctrl-alt-n switch to virtual console 'n'\n"
1992 "ctrl-alt toggle mouse and keyboard grab\n"
1994 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1999 #define HAS_ARG 0x0001
2001 typedef struct QEMUOption {
2008 static const QEMUOption qemu_options[] = {
2009 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2010 #define QEMU_OPTIONS_GENERATE_OPTIONS
2011 #include "qemu-options-wrapper.h"
2015 typedef struct VGAInterfaceInfo {
2016 const char *opt_name; /* option name */
2017 const char *name; /* human-readable name */
2018 /* Class names indicating that support is available.
2019 * If no class is specified, the interface is always available */
2020 const char *class_names[2];
2023 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2029 .name = "standard VGA",
2030 .class_names = { "VGA", "isa-vga" },
2033 .opt_name = "cirrus",
2034 .name = "Cirrus VGA",
2035 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2038 .opt_name = "vmware",
2039 .name = "VMWare SVGA",
2040 .class_names = { "vmware-svga" },
2043 .opt_name = "virtio",
2044 .name = "Virtio VGA",
2045 .class_names = { "virtio-vga" },
2050 .class_names = { "qxl-vga" },
2054 .name = "TCX framebuffer",
2055 .class_names = { "SUNW,tcx" },
2059 .name = "CG3 framebuffer",
2060 .class_names = { "cgthree" },
2063 .opt_name = "xenfb",
2067 static bool vga_interface_available(VGAInterfaceType t)
2069 VGAInterfaceInfo *ti = &vga_interfaces[t];
2071 assert(t < VGA_TYPE_MAX);
2072 return !ti->class_names[0] ||
2073 object_class_by_name(ti->class_names[0]) ||
2074 object_class_by_name(ti->class_names[1]);
2077 static void select_vgahw(const char *p)
2082 assert(vga_interface_type == VGA_NONE);
2083 for (t = 0; t < VGA_TYPE_MAX; t++) {
2084 VGAInterfaceInfo *ti = &vga_interfaces[t];
2085 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2086 if (!vga_interface_available(t)) {
2087 error_report("%s not available", ti->name);
2090 vga_interface_type = t;
2094 if (t == VGA_TYPE_MAX) {
2096 error_report("unknown vga type: %s", p);
2100 const char *nextopt;
2102 if (strstart(opts, ",retrace=", &nextopt)) {
2104 if (strstart(opts, "dumb", &nextopt))
2105 vga_retrace_method = VGA_RETRACE_DUMB;
2106 else if (strstart(opts, "precise", &nextopt))
2107 vga_retrace_method = VGA_RETRACE_PRECISE;
2108 else goto invalid_vga;
2109 } else goto invalid_vga;
2114 typedef enum DisplayType {
2123 static DisplayType select_display(const char *p)
2126 DisplayType display = DT_DEFAULT;
2128 if (strstart(p, "sdl", &opts)) {
2132 const char *nextopt;
2134 if (strstart(opts, ",frame=", &nextopt)) {
2136 if (strstart(opts, "on", &nextopt)) {
2138 } else if (strstart(opts, "off", &nextopt)) {
2141 goto invalid_sdl_args;
2143 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2145 if (strstart(opts, "on", &nextopt)) {
2147 } else if (strstart(opts, "off", &nextopt)) {
2150 goto invalid_sdl_args;
2152 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2154 if (strstart(opts, "on", &nextopt)) {
2156 } else if (strstart(opts, "off", &nextopt)) {
2159 goto invalid_sdl_args;
2161 } else if (strstart(opts, ",window_close=", &nextopt)) {
2163 if (strstart(opts, "on", &nextopt)) {
2165 } else if (strstart(opts, "off", &nextopt)) {
2168 goto invalid_sdl_args;
2170 } else if (strstart(opts, ",gl=", &nextopt)) {
2172 if (strstart(opts, "on", &nextopt)) {
2174 } else if (strstart(opts, "off", &nextopt)) {
2177 goto invalid_sdl_args;
2181 error_report("invalid SDL option string");
2187 error_report("SDL support is disabled");
2190 } else if (strstart(p, "vnc", &opts)) {
2192 vnc_parse(opts + 1, &error_fatal);
2194 error_report("VNC requires a display argument vnc=<display>");
2197 } else if (strstart(p, "curses", &opts)) {
2198 #ifdef CONFIG_CURSES
2199 display = DT_CURSES;
2201 error_report("curses support is disabled");
2204 } else if (strstart(p, "gtk", &opts)) {
2208 const char *nextopt;
2210 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2212 if (strstart(opts, "on", &nextopt)) {
2213 grab_on_hover = true;
2214 } else if (strstart(opts, "off", &nextopt)) {
2215 grab_on_hover = false;
2217 goto invalid_gtk_args;
2219 } else if (strstart(opts, ",gl=", &nextopt)) {
2221 if (strstart(opts, "on", &nextopt)) {
2223 } else if (strstart(opts, "off", &nextopt)) {
2226 goto invalid_gtk_args;
2230 error_report("invalid GTK option string");
2236 error_report("GTK support is disabled");
2239 } else if (strstart(p, "none", &opts)) {
2242 error_report("unknown display type");
2249 static int balloon_parse(const char *arg)
2253 if (strcmp(arg, "none") == 0) {
2257 if (!strncmp(arg, "virtio", 6)) {
2258 if (arg[6] == ',') {
2259 /* have params -> parse them */
2260 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2265 /* create empty opts */
2266 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2269 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2276 char *qemu_find_file(int type, const char *name)
2282 /* Try the name as a straight path first */
2283 if (access(name, R_OK) == 0) {
2284 trace_load_file(name, name);
2285 return g_strdup(name);
2289 case QEMU_FILE_TYPE_BIOS:
2292 case QEMU_FILE_TYPE_KEYMAP:
2293 subdir = "keymaps/";
2299 for (i = 0; i < data_dir_idx; i++) {
2300 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2301 if (access(buf, R_OK) == 0) {
2302 trace_load_file(name, buf);
2310 static inline bool nonempty_str(const char *str)
2315 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2319 const char *name, *file, *str;
2320 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2322 if (fw_cfg == NULL) {
2323 error_report("fw_cfg device not available");
2326 name = qemu_opt_get(opts, "name");
2327 file = qemu_opt_get(opts, "file");
2328 str = qemu_opt_get(opts, "string");
2330 /* we need name and either a file or the content string */
2331 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2332 error_report("invalid argument(s)");
2335 if (nonempty_str(file) && nonempty_str(str)) {
2336 error_report("file and string are mutually exclusive");
2339 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2340 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2343 if (strncmp(name, "opt/", 4) != 0) {
2344 error_report("warning: externally provided fw_cfg item names "
2345 "should be prefixed with \"opt/\"");
2347 if (nonempty_str(str)) {
2348 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2349 buf = g_memdup(str, size);
2351 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2352 error_report("can't load %s", file);
2356 /* For legacy, keep user files in a specific global order. */
2357 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2358 fw_cfg_add_file(fw_cfg, name, buf, size);
2359 fw_cfg_reset_order_override(fw_cfg);
2363 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2365 return qdev_device_help(opts);
2368 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2373 dev = qdev_device_add(opts, &err);
2375 error_report_err(err);
2378 object_unref(OBJECT(dev));
2382 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2384 Error *local_err = NULL;
2386 qemu_chr_new_from_opts(opts, &local_err);
2388 error_report_err(local_err);
2394 #ifdef CONFIG_VIRTFS
2395 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2397 return qemu_fsdev_add(opts);
2401 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2403 CharDriverState *chr;
2404 const char *chardev;
2408 mode = qemu_opt_get(opts, "mode");
2412 if (strcmp(mode, "readline") == 0) {
2413 flags = MONITOR_USE_READLINE;
2414 } else if (strcmp(mode, "control") == 0) {
2415 flags = MONITOR_USE_CONTROL;
2417 error_report("unknown monitor mode \"%s\"", mode);
2421 if (qemu_opt_get_bool(opts, "pretty", 0))
2422 flags |= MONITOR_USE_PRETTY;
2424 if (qemu_opt_get_bool(opts, "default", 0)) {
2425 error_report("option 'default' does nothing and is deprecated");
2428 chardev = qemu_opt_get(opts, "chardev");
2429 chr = qemu_chr_find(chardev);
2431 error_report("chardev \"%s\" not found", chardev);
2435 monitor_init(chr, flags);
2439 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2441 static int monitor_device_index = 0;
2446 if (strstart(optarg, "chardev:", &p)) {
2447 snprintf(label, sizeof(label), "%s", p);
2449 snprintf(label, sizeof(label), "compat_monitor%d",
2450 monitor_device_index);
2451 opts = qemu_chr_parse_compat(label, optarg);
2453 error_report("parse error: %s", optarg);
2458 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2459 qemu_opt_set(opts, "mode", mode, &error_abort);
2460 qemu_opt_set(opts, "chardev", label, &error_abort);
2461 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2462 monitor_device_index++;
2465 struct device_config {
2467 DEV_USB, /* -usbdevice */
2469 DEV_SERIAL, /* -serial */
2470 DEV_PARALLEL, /* -parallel */
2471 DEV_VIRTCON, /* -virtioconsole */
2472 DEV_DEBUGCON, /* -debugcon */
2473 DEV_GDB, /* -gdb, -s */
2474 DEV_SCLP, /* s390 sclp */
2476 const char *cmdline;
2478 QTAILQ_ENTRY(device_config) next;
2481 static QTAILQ_HEAD(, device_config) device_configs =
2482 QTAILQ_HEAD_INITIALIZER(device_configs);
2484 static void add_device_config(int type, const char *cmdline)
2486 struct device_config *conf;
2488 conf = g_malloc0(sizeof(*conf));
2490 conf->cmdline = cmdline;
2491 loc_save(&conf->loc);
2492 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2495 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2497 struct device_config *conf;
2500 QTAILQ_FOREACH(conf, &device_configs, next) {
2501 if (conf->type != type)
2503 loc_push_restore(&conf->loc);
2504 rc = func(conf->cmdline);
2505 loc_pop(&conf->loc);
2513 static int serial_parse(const char *devname)
2515 static int index = 0;
2518 if (strcmp(devname, "none") == 0)
2520 if (index == MAX_SERIAL_PORTS) {
2521 error_report("too many serial ports");
2524 snprintf(label, sizeof(label), "serial%d", index);
2525 serial_hds[index] = qemu_chr_new(label, devname);
2526 if (!serial_hds[index]) {
2527 error_report("could not connect serial device"
2528 " to character backend '%s'", devname);
2535 static int parallel_parse(const char *devname)
2537 static int index = 0;
2540 if (strcmp(devname, "none") == 0)
2542 if (index == MAX_PARALLEL_PORTS) {
2543 error_report("too many parallel ports");
2546 snprintf(label, sizeof(label), "parallel%d", index);
2547 parallel_hds[index] = qemu_chr_new(label, devname);
2548 if (!parallel_hds[index]) {
2549 error_report("could not connect parallel device"
2550 " to character backend '%s'", devname);
2557 static int virtcon_parse(const char *devname)
2559 QemuOptsList *device = qemu_find_opts("device");
2560 static int index = 0;
2562 QemuOpts *bus_opts, *dev_opts;
2564 if (strcmp(devname, "none") == 0)
2566 if (index == MAX_VIRTIO_CONSOLES) {
2567 error_report("too many virtio consoles");
2571 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2572 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2574 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2575 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2577 snprintf(label, sizeof(label), "virtcon%d", index);
2578 virtcon_hds[index] = qemu_chr_new(label, devname);
2579 if (!virtcon_hds[index]) {
2580 error_report("could not connect virtio console"
2581 " to character backend '%s'", devname);
2584 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2590 static int sclp_parse(const char *devname)
2592 QemuOptsList *device = qemu_find_opts("device");
2593 static int index = 0;
2597 if (strcmp(devname, "none") == 0) {
2600 if (index == MAX_SCLP_CONSOLES) {
2601 error_report("too many sclp consoles");
2605 assert(arch_type == QEMU_ARCH_S390X);
2607 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2608 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2610 snprintf(label, sizeof(label), "sclpcon%d", index);
2611 sclp_hds[index] = qemu_chr_new(label, devname);
2612 if (!sclp_hds[index]) {
2613 error_report("could not connect sclp console"
2614 " to character backend '%s'", devname);
2617 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2623 static int debugcon_parse(const char *devname)
2627 if (!qemu_chr_new("debugcon", devname)) {
2630 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2632 error_report("already have a debugcon device");
2635 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2636 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2640 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2642 const MachineClass *mc1 = a, *mc2 = b;
2645 if (mc1->family == NULL) {
2646 if (mc2->family == NULL) {
2647 /* Compare standalone machine types against each other; they sort
2648 * in increasing order.
2650 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2651 object_class_get_name(OBJECT_CLASS(mc2)));
2654 /* Standalone machine types sort after families. */
2658 if (mc2->family == NULL) {
2659 /* Families sort before standalone machine types. */
2663 /* Families sort between each other alphabetically increasingly. */
2664 res = strcmp(mc1->family, mc2->family);
2669 /* Within the same family, machine types sort in decreasing order. */
2670 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2671 object_class_get_name(OBJECT_CLASS(mc1)));
2674 static MachineClass *machine_parse(const char *name)
2676 MachineClass *mc = NULL;
2677 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2680 mc = find_machine(name);
2683 g_slist_free(machines);
2686 if (name && !is_help_option(name)) {
2687 error_report("unsupported machine type");
2688 error_printf("Use -machine help to list supported machines\n");
2690 printf("Supported machines are:\n");
2691 machines = g_slist_sort(machines, machine_class_cmp);
2692 for (el = machines; el; el = el->next) {
2693 MachineClass *mc = el->data;
2695 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2697 printf("%-20s %s%s\n", mc->name, mc->desc,
2698 mc->is_default ? " (default)" : "");
2702 g_slist_free(machines);
2703 exit(!name || !is_help_option(name));
2706 void qemu_add_exit_notifier(Notifier *notify)
2708 notifier_list_add(&exit_notifiers, notify);
2711 void qemu_remove_exit_notifier(Notifier *notify)
2713 notifier_remove(notify);
2716 static void qemu_run_exit_notifiers(void)
2718 notifier_list_notify(&exit_notifiers, NULL);
2721 static bool machine_init_done;
2723 void qemu_add_machine_init_done_notifier(Notifier *notify)
2725 notifier_list_add(&machine_init_done_notifiers, notify);
2726 if (machine_init_done) {
2727 notify->notify(notify, NULL);
2731 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2733 notifier_remove(notify);
2736 static void qemu_run_machine_init_done_notifiers(void)
2738 notifier_list_notify(&machine_init_done_notifiers, NULL);
2739 machine_init_done = true;
2742 static const QEMUOption *lookup_opt(int argc, char **argv,
2743 const char **poptarg, int *poptind)
2745 const QEMUOption *popt;
2746 int optind = *poptind;
2747 char *r = argv[optind];
2750 loc_set_cmdline(argv, optind, 1);
2752 /* Treat --foo the same as -foo. */
2755 popt = qemu_options;
2758 error_report("invalid option");
2761 if (!strcmp(popt->name, r + 1))
2765 if (popt->flags & HAS_ARG) {
2766 if (optind >= argc) {
2767 error_report("requires an argument");
2770 optarg = argv[optind++];
2771 loc_set_cmdline(argv, optind - 2, 2);
2782 static MachineClass *select_machine(void)
2784 MachineClass *machine_class = find_default_machine();
2789 loc_push_none(&loc);
2791 opts = qemu_get_machine_opts();
2792 qemu_opts_loc_restore(opts);
2794 optarg = qemu_opt_get(opts, "type");
2796 machine_class = machine_parse(optarg);
2799 if (!machine_class) {
2800 error_report("No machine specified, and there is no default");
2801 error_printf("Use -machine help to list supported machines\n");
2806 return machine_class;
2809 static int machine_set_property(void *opaque,
2810 const char *name, const char *value,
2813 Object *obj = OBJECT(opaque);
2814 Error *local_err = NULL;
2817 if (strcmp(name, "type") == 0) {
2821 qom_name = g_strdup(name);
2822 for (p = qom_name; *p; p++) {
2828 object_property_parse(obj, value, qom_name, &local_err);
2832 error_report_err(local_err);
2841 * Initial object creation happens before all other
2842 * QEMU data types are created. The majority of objects
2843 * can be created at this point. The rng-egd object
2844 * cannot be created here, as it depends on the chardev
2847 static bool object_create_initial(const char *type)
2849 if (g_str_equal(type, "rng-egd")) {
2854 * return false for concrete netfilters since
2855 * they depend on netdevs already existing
2857 if (g_str_equal(type, "filter-buffer") ||
2858 g_str_equal(type, "filter-dump") ||
2859 g_str_equal(type, "filter-mirror") ||
2860 g_str_equal(type, "filter-redirector") ||
2861 g_str_equal(type, "colo-compare") ||
2862 g_str_equal(type, "filter-rewriter") ||
2863 g_str_equal(type, "filter-replay")) {
2867 /* Memory allocation by backends needs to be done
2868 * after configure_accelerator() (due to the tcg_enabled()
2869 * checks at memory_region_init_*()).
2871 * Also, allocation of large amounts of memory may delay
2872 * chardev initialization for too long, and trigger timeouts
2873 * on software that waits for a monitor socket to be created
2876 if (g_str_has_prefix(type, "memory-backend-")) {
2885 * The remainder of object creation happens after the
2886 * creation of chardev, fsdev, net clients and device data types.
2888 static bool object_create_delayed(const char *type)
2890 return !object_create_initial(type);
2894 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2898 const char *mem_str;
2899 const char *maxmem_str, *slots_str;
2900 const ram_addr_t default_ram_size = mc->default_ram_size;
2901 QemuOpts *opts = qemu_find_opts_singleton("memory");
2904 loc_push_none(&loc);
2905 qemu_opts_loc_restore(opts);
2908 mem_str = qemu_opt_get(opts, "size");
2911 error_report("missing 'size' option value");
2915 sz = qemu_opt_get_size(opts, "size", ram_size);
2917 /* Fix up legacy suffix-less format */
2918 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2919 uint64_t overflow_check = sz;
2922 if ((sz >> 20) != overflow_check) {
2923 error_report("too large 'size' option value");
2929 /* backward compatibility behaviour for case "-m 0" */
2931 sz = default_ram_size;
2934 sz = QEMU_ALIGN_UP(sz, 8192);
2936 if (ram_size != sz) {
2937 error_report("ram size too large");
2941 /* store value for the future use */
2942 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2943 *maxram_size = ram_size;
2945 maxmem_str = qemu_opt_get(opts, "maxmem");
2946 slots_str = qemu_opt_get(opts, "slots");
2947 if (maxmem_str && slots_str) {
2950 sz = qemu_opt_get_size(opts, "maxmem", 0);
2951 slots = qemu_opt_get_number(opts, "slots", 0);
2952 if (sz < ram_size) {
2953 error_report("invalid value of -m option maxmem: "
2954 "maximum memory size (0x%" PRIx64 ") must be at least "
2955 "the initial memory size (0x" RAM_ADDR_FMT ")",
2958 } else if (sz > ram_size) {
2960 error_report("invalid value of -m option: maxmem was "
2961 "specified, but no hotplug slots were specified");
2965 error_report("invalid value of -m option maxmem: "
2966 "memory slots were specified but maximum memory size "
2967 "(0x%" PRIx64 ") is equal to the initial memory size "
2968 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2974 } else if ((!maxmem_str && slots_str) ||
2975 (maxmem_str && !slots_str)) {
2976 error_report("invalid -m option value: missing "
2977 "'%s' option", slots_str ? "maxmem" : "slots");
2984 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2988 g = g_malloc0(sizeof(*g));
2989 g->driver = qemu_opt_get(opts, "driver");
2990 g->property = qemu_opt_get(opts, "property");
2991 g->value = qemu_opt_get(opts, "value");
2992 g->user_provided = true;
2993 g->errp = &error_fatal;
2994 qdev_prop_register_global(g);
2998 int main(int argc, char **argv, char **envp)
3001 int snapshot, linux_boot;
3002 const char *initrd_filename;
3003 const char *kernel_filename, *kernel_cmdline;
3004 const char *boot_order = NULL;
3005 const char *boot_once = NULL;
3007 int cyls, heads, secs, translation;
3008 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
3009 QemuOptsList *olist;
3012 const char *loadvm = NULL;
3013 MachineClass *machine_class;
3014 const char *cpu_model;
3015 const char *vga_model = NULL;
3016 const char *qtest_chrdev = NULL;
3017 const char *qtest_log = NULL;
3018 const char *pid_file = NULL;
3019 const char *incoming = NULL;
3020 bool defconfig = true;
3021 bool userconfig = true;
3022 bool nographic = false;
3023 DisplayType display_type = DT_DEFAULT;
3024 int display_remote = 0;
3025 const char *log_mask = NULL;
3026 const char *log_file = NULL;
3027 char *trace_file = NULL;
3028 ram_addr_t maxram_size;
3029 uint64_t ram_slots = 0;
3030 FILE *vmstate_dump_file = NULL;
3031 Error *main_loop_err = NULL;
3033 bool list_data_dirs = false;
3035 module_call_init(MODULE_INIT_TRACE);
3037 qemu_init_cpu_list();
3038 qemu_init_cpu_loop();
3039 qemu_mutex_lock_iothread();
3041 atexit(qemu_run_exit_notifiers);
3042 error_set_progname(argv[0]);
3043 qemu_init_exec_dir(argv[0]);
3045 module_call_init(MODULE_INIT_QOM);
3046 module_call_init(MODULE_INIT_QAPI);
3048 qemu_add_opts(&qemu_drive_opts);
3049 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3050 qemu_add_drive_opts(&qemu_common_drive_opts);
3051 qemu_add_drive_opts(&qemu_drive_opts);
3052 qemu_add_drive_opts(&bdrv_runtime_opts);
3053 qemu_add_opts(&qemu_chardev_opts);
3054 qemu_add_opts(&qemu_device_opts);
3055 qemu_add_opts(&qemu_netdev_opts);
3056 qemu_add_opts(&qemu_net_opts);
3057 qemu_add_opts(&qemu_rtc_opts);
3058 qemu_add_opts(&qemu_global_opts);
3059 qemu_add_opts(&qemu_mon_opts);
3060 qemu_add_opts(&qemu_trace_opts);
3061 qemu_add_opts(&qemu_option_rom_opts);
3062 qemu_add_opts(&qemu_machine_opts);
3063 qemu_add_opts(&qemu_mem_opts);
3064 qemu_add_opts(&qemu_smp_opts);
3065 qemu_add_opts(&qemu_boot_opts);
3066 qemu_add_opts(&qemu_sandbox_opts);
3067 qemu_add_opts(&qemu_add_fd_opts);
3068 qemu_add_opts(&qemu_object_opts);
3069 qemu_add_opts(&qemu_tpmdev_opts);
3070 qemu_add_opts(&qemu_realtime_opts);
3071 qemu_add_opts(&qemu_msg_opts);
3072 qemu_add_opts(&qemu_name_opts);
3073 qemu_add_opts(&qemu_numa_opts);
3074 qemu_add_opts(&qemu_icount_opts);
3075 qemu_add_opts(&qemu_semihosting_config_opts);
3076 qemu_add_opts(&qemu_fw_cfg_opts);
3077 #ifdef CONFIG_LIBISCSI
3078 qemu_add_opts(&qemu_iscsi_opts);
3080 module_call_init(MODULE_INIT_OPTS);
3084 if (qcrypto_init(&err) < 0) {
3085 error_reportf_err(err, "cannot initialize crypto: ");
3088 rtc_clock = QEMU_CLOCK_HOST;
3090 QLIST_INIT (&vm_change_state_head);
3091 os_setup_early_signal_handling();
3095 cyls = heads = secs = 0;
3096 translation = BIOS_ATA_TRANSLATION_AUTO;
3100 bdrv_init_with_whitelist();
3104 /* first pass of option parsing */
3106 while (optind < argc) {
3107 if (argv[optind][0] != '-') {
3111 const QEMUOption *popt;
3113 popt = lookup_opt(argc, argv, &optarg, &optind);
3114 switch (popt->index) {
3115 case QEMU_OPTION_nodefconfig:
3118 case QEMU_OPTION_nouserconfig:
3127 ret = qemu_read_default_config_files(userconfig);
3133 /* second pass of option parsing */
3138 if (argv[optind][0] != '-') {
3139 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3141 const QEMUOption *popt;
3143 popt = lookup_opt(argc, argv, &optarg, &optind);
3144 if (!(popt->arch_mask & arch_type)) {
3145 error_report("Option not supported for this target");
3148 switch(popt->index) {
3149 case QEMU_OPTION_no_kvm_irqchip: {
3150 olist = qemu_find_opts("machine");
3151 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3154 case QEMU_OPTION_cpu:
3155 /* hw initialization will check this */
3158 case QEMU_OPTION_hda:
3162 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3164 snprintf(buf, sizeof(buf),
3165 "%s,cyls=%d,heads=%d,secs=%d%s",
3166 HD_OPTS , cyls, heads, secs,
3167 translation == BIOS_ATA_TRANSLATION_LBA ?
3169 translation == BIOS_ATA_TRANSLATION_NONE ?
3170 ",trans=none" : "");
3171 drive_add(IF_DEFAULT, 0, optarg, buf);
3174 case QEMU_OPTION_hdb:
3175 case QEMU_OPTION_hdc:
3176 case QEMU_OPTION_hdd:
3177 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3180 case QEMU_OPTION_drive:
3181 if (drive_def(optarg) == NULL) {
3185 case QEMU_OPTION_set:
3186 if (qemu_set_option(optarg) != 0)
3189 case QEMU_OPTION_global:
3190 if (qemu_global_option(optarg) != 0)
3193 case QEMU_OPTION_mtdblock:
3194 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3196 case QEMU_OPTION_sd:
3197 drive_add(IF_SD, -1, optarg, SD_OPTS);
3199 case QEMU_OPTION_pflash:
3200 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3202 case QEMU_OPTION_snapshot:
3205 case QEMU_OPTION_hdachs:
3209 cyls = strtol(p, (char **)&p, 0);
3210 if (cyls < 1 || cyls > 16383)
3215 heads = strtol(p, (char **)&p, 0);
3216 if (heads < 1 || heads > 16)
3221 secs = strtol(p, (char **)&p, 0);
3222 if (secs < 1 || secs > 63)
3226 if (!strcmp(p, "large")) {
3227 translation = BIOS_ATA_TRANSLATION_LARGE;
3228 } else if (!strcmp(p, "rechs")) {
3229 translation = BIOS_ATA_TRANSLATION_RECHS;
3230 } else if (!strcmp(p, "none")) {
3231 translation = BIOS_ATA_TRANSLATION_NONE;
3232 } else if (!strcmp(p, "lba")) {
3233 translation = BIOS_ATA_TRANSLATION_LBA;
3234 } else if (!strcmp(p, "auto")) {
3235 translation = BIOS_ATA_TRANSLATION_AUTO;
3239 } else if (*p != '\0') {
3241 error_report("invalid physical CHS format");
3244 if (hda_opts != NULL) {
3245 qemu_opt_set_number(hda_opts, "cyls", cyls,
3247 qemu_opt_set_number(hda_opts, "heads", heads,
3249 qemu_opt_set_number(hda_opts, "secs", secs,
3251 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3252 qemu_opt_set(hda_opts, "trans", "large",
3254 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3255 qemu_opt_set(hda_opts, "trans", "rechs",
3257 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3258 qemu_opt_set(hda_opts, "trans", "lba",
3260 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3261 qemu_opt_set(hda_opts, "trans", "none",
3267 case QEMU_OPTION_numa:
3268 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3274 case QEMU_OPTION_display:
3275 display_type = select_display(optarg);
3277 case QEMU_OPTION_nographic:
3278 olist = qemu_find_opts("machine");
3279 qemu_opts_parse_noisily(olist, "graphics=off", false);
3281 display_type = DT_NONE;
3283 case QEMU_OPTION_curses:
3284 #ifdef CONFIG_CURSES
3285 display_type = DT_CURSES;
3287 error_report("curses support is disabled");
3291 case QEMU_OPTION_portrait:
3292 graphic_rotate = 90;
3294 case QEMU_OPTION_rotate:
3295 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3296 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3297 graphic_rotate != 180 && graphic_rotate != 270) {
3298 error_report("only 90, 180, 270 deg rotation is available");
3302 case QEMU_OPTION_kernel:
3303 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3306 case QEMU_OPTION_initrd:
3307 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3310 case QEMU_OPTION_append:
3311 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3314 case QEMU_OPTION_dtb:
3315 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3318 case QEMU_OPTION_cdrom:
3319 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3321 case QEMU_OPTION_boot:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3328 case QEMU_OPTION_fda:
3329 case QEMU_OPTION_fdb:
3330 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3333 case QEMU_OPTION_no_fd_bootchk:
3336 case QEMU_OPTION_netdev:
3338 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3342 case QEMU_OPTION_net:
3344 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3348 #ifdef CONFIG_LIBISCSI
3349 case QEMU_OPTION_iscsi:
3350 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3358 case QEMU_OPTION_tftp:
3359 error_report("The -tftp option is deprecated. "
3360 "Please use '-netdev user,tftp=...' instead.");
3361 legacy_tftp_prefix = optarg;
3363 case QEMU_OPTION_bootp:
3364 error_report("The -bootp option is deprecated. "
3365 "Please use '-netdev user,bootfile=...' instead.");
3366 legacy_bootp_filename = optarg;
3368 case QEMU_OPTION_redir:
3369 error_report("The -redir option is deprecated. "
3370 "Please use '-netdev user,hostfwd=...' instead.");
3371 if (net_slirp_redir(optarg) < 0)
3375 case QEMU_OPTION_bt:
3376 add_device_config(DEV_BT, optarg);
3378 case QEMU_OPTION_audio_help:
3382 case QEMU_OPTION_soundhw:
3383 select_soundhw (optarg);
3388 case QEMU_OPTION_version:
3393 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3400 case QEMU_OPTION_tpmdev:
3401 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3406 case QEMU_OPTION_mempath:
3409 case QEMU_OPTION_mem_prealloc:
3418 case QEMU_OPTION_DFILTER:
3419 qemu_set_dfilter_ranges(optarg, &error_fatal);
3422 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3424 case QEMU_OPTION_gdb:
3425 add_device_config(DEV_GDB, optarg);
3428 if (is_help_option(optarg)) {
3429 list_data_dirs = true;
3430 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3431 data_dir[data_dir_idx++] = optarg;
3434 case QEMU_OPTION_bios:
3435 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3438 case QEMU_OPTION_singlestep:
3445 keyboard_layout = optarg;
3447 case QEMU_OPTION_localtime:
3450 case QEMU_OPTION_vga:
3459 w = strtol(p, (char **)&p, 10);
3462 error_report("invalid resolution or depth");
3468 h = strtol(p, (char **)&p, 10);
3473 depth = strtol(p, (char **)&p, 10);
3474 if (depth != 8 && depth != 15 && depth != 16 &&
3475 depth != 24 && depth != 32)
3477 } else if (*p == '\0') {
3478 depth = graphic_depth;
3485 graphic_depth = depth;
3488 case QEMU_OPTION_echr:
3491 term_escape_char = strtol(optarg, &r, 0);
3493 printf("Bad argument to echr\n");
3496 case QEMU_OPTION_monitor:
3497 default_monitor = 0;
3498 if (strncmp(optarg, "none", 4)) {
3499 monitor_parse(optarg, "readline", false);
3502 case QEMU_OPTION_qmp:
3503 monitor_parse(optarg, "control", false);
3504 default_monitor = 0;
3506 case QEMU_OPTION_qmp_pretty:
3507 monitor_parse(optarg, "control", true);
3508 default_monitor = 0;
3510 case QEMU_OPTION_mon:
3511 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3516 default_monitor = 0;
3518 case QEMU_OPTION_chardev:
3519 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3525 case QEMU_OPTION_fsdev:
3526 olist = qemu_find_opts("fsdev");
3528 error_report("fsdev support is disabled");
3531 opts = qemu_opts_parse_noisily(olist, optarg, true);
3536 case QEMU_OPTION_virtfs: {
3539 const char *writeout, *sock_fd, *socket;
3541 olist = qemu_find_opts("virtfs");
3543 error_report("virtfs support is disabled");
3546 opts = qemu_opts_parse_noisily(olist, optarg, true);
3551 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3552 qemu_opt_get(opts, "mount_tag") == NULL) {
3553 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3556 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3557 qemu_opt_get(opts, "mount_tag"),
3560 error_report("duplicate fsdev id: %s",
3561 qemu_opt_get(opts, "mount_tag"));
3565 writeout = qemu_opt_get(opts, "writeout");
3567 #ifdef CONFIG_SYNC_FILE_RANGE
3568 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3570 error_report("writeout=immediate not supported "
3571 "on this platform");
3575 qemu_opt_set(fsdev, "fsdriver",
3576 qemu_opt_get(opts, "fsdriver"), &error_abort);
3577 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3579 qemu_opt_set(fsdev, "security_model",
3580 qemu_opt_get(opts, "security_model"),
3582 socket = qemu_opt_get(opts, "socket");
3584 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3586 sock_fd = qemu_opt_get(opts, "sock_fd");
3588 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3591 qemu_opt_set_bool(fsdev, "readonly",
3592 qemu_opt_get_bool(opts, "readonly", 0),
3594 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3596 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3597 qemu_opt_set(device, "fsdev",
3598 qemu_opt_get(opts, "mount_tag"), &error_abort);
3599 qemu_opt_set(device, "mount_tag",
3600 qemu_opt_get(opts, "mount_tag"), &error_abort);
3603 case QEMU_OPTION_virtfs_synth: {
3607 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3610 error_report("duplicate option: %s", "virtfs_synth");
3613 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3615 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3617 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3618 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3619 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3622 case QEMU_OPTION_serial:
3623 add_device_config(DEV_SERIAL, optarg);
3625 if (strncmp(optarg, "mon:", 4) == 0) {
3626 default_monitor = 0;
3629 case QEMU_OPTION_watchdog:
3631 error_report("only one watchdog option may be given");
3636 case QEMU_OPTION_watchdog_action:
3637 if (select_watchdog_action(optarg) == -1) {
3638 error_report("unknown -watchdog-action parameter");
3642 case QEMU_OPTION_virtiocon:
3643 add_device_config(DEV_VIRTCON, optarg);
3644 default_virtcon = 0;
3645 if (strncmp(optarg, "mon:", 4) == 0) {
3646 default_monitor = 0;
3649 case QEMU_OPTION_parallel:
3650 add_device_config(DEV_PARALLEL, optarg);
3651 default_parallel = 0;
3652 if (strncmp(optarg, "mon:", 4) == 0) {
3653 default_monitor = 0;
3656 case QEMU_OPTION_debugcon:
3657 add_device_config(DEV_DEBUGCON, optarg);
3659 case QEMU_OPTION_loadvm:
3662 case QEMU_OPTION_full_screen:
3665 case QEMU_OPTION_no_frame:
3668 case QEMU_OPTION_alt_grab:
3671 case QEMU_OPTION_ctrl_grab:
3674 case QEMU_OPTION_no_quit:
3677 case QEMU_OPTION_sdl:
3679 display_type = DT_SDL;
3682 error_report("SDL support is disabled");
3685 case QEMU_OPTION_pidfile:
3688 case QEMU_OPTION_win2k_hack:
3689 win2k_install_hack = 1;
3691 case QEMU_OPTION_rtc_td_hack: {
3692 static GlobalProperty slew_lost_ticks = {
3693 .driver = "mc146818rtc",
3694 .property = "lost_tick_policy",
3698 qdev_prop_register_global(&slew_lost_ticks);
3701 case QEMU_OPTION_acpitable:
3702 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3707 do_acpitable_option(opts);
3709 case QEMU_OPTION_smbios:
3710 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3715 do_smbios_option(opts);
3717 case QEMU_OPTION_fwcfg:
3718 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3724 case QEMU_OPTION_enable_kvm:
3725 olist = qemu_find_opts("machine");
3726 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3729 case QEMU_OPTION_machine:
3730 olist = qemu_find_opts("machine");
3731 opts = qemu_opts_parse_noisily(olist, optarg, true);
3736 case QEMU_OPTION_no_kvm:
3737 olist = qemu_find_opts("machine");
3738 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3740 case QEMU_OPTION_no_kvm_pit: {
3741 error_report("warning: ignoring deprecated option");
3744 case QEMU_OPTION_no_kvm_pit_reinjection: {
3745 static GlobalProperty kvm_pit_lost_tick_policy = {
3746 .driver = "kvm-pit",
3747 .property = "lost_tick_policy",
3751 error_report("warning: deprecated, replaced by "
3752 "-global kvm-pit.lost_tick_policy=discard");
3753 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3756 case QEMU_OPTION_usb:
3757 olist = qemu_find_opts("machine");
3758 qemu_opts_parse_noisily(olist, "usb=on", false);
3760 case QEMU_OPTION_usbdevice:
3761 olist = qemu_find_opts("machine");
3762 qemu_opts_parse_noisily(olist, "usb=on", false);
3763 add_device_config(DEV_USB, optarg);
3765 case QEMU_OPTION_device:
3766 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3771 case QEMU_OPTION_smp:
3772 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3777 case QEMU_OPTION_vnc:
3778 vnc_parse(optarg, &error_fatal);
3780 case QEMU_OPTION_no_acpi:
3783 case QEMU_OPTION_no_hpet:
3786 case QEMU_OPTION_balloon:
3787 if (balloon_parse(optarg) < 0) {
3788 error_report("unknown -balloon argument %s", optarg);
3792 case QEMU_OPTION_no_reboot:
3795 case QEMU_OPTION_no_shutdown:
3798 case QEMU_OPTION_show_cursor:
3801 case QEMU_OPTION_uuid:
3802 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3803 error_report("failed to parse UUID string: wrong format");
3806 qemu_uuid_set = true;
3808 case QEMU_OPTION_option_rom:
3809 if (nb_option_roms >= MAX_OPTION_ROMS) {
3810 error_report("too many option ROMs");
3813 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3818 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3819 option_rom[nb_option_roms].bootindex =
3820 qemu_opt_get_number(opts, "bootindex", -1);
3821 if (!option_rom[nb_option_roms].name) {
3822 error_report("Option ROM file is not specified");
3827 case QEMU_OPTION_semihosting:
3828 semihosting.enabled = true;
3829 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3831 case QEMU_OPTION_semihosting_config:
3832 semihosting.enabled = true;
3833 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3836 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3838 const char *target = qemu_opt_get(opts, "target");
3839 if (target != NULL) {
3840 if (strcmp("native", target) == 0) {
3841 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3842 } else if (strcmp("gdb", target) == 0) {
3843 semihosting.target = SEMIHOSTING_TARGET_GDB;
3844 } else if (strcmp("auto", target) == 0) {
3845 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3847 error_report("unsupported semihosting-config %s",
3852 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3854 /* Set semihosting argument count and vector */
3855 qemu_opt_foreach(opts, add_semihosting_arg,
3856 &semihosting, NULL);
3858 error_report("unsupported semihosting-config %s", optarg);
3862 case QEMU_OPTION_tdf:
3863 error_report("warning: ignoring deprecated option");
3865 case QEMU_OPTION_name:
3866 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3872 case QEMU_OPTION_prom_env:
3873 if (nb_prom_envs >= MAX_PROM_ENVS) {
3874 error_report("too many prom variables");
3877 prom_envs[nb_prom_envs] = optarg;
3880 case QEMU_OPTION_old_param:
3883 case QEMU_OPTION_clock:
3884 /* Clock options no longer exist. Keep this option for
3885 * backward compatibility.
3888 case QEMU_OPTION_startdate:
3889 configure_rtc_date_offset(optarg, 1);
3891 case QEMU_OPTION_rtc:
3892 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3897 configure_rtc(opts);
3899 case QEMU_OPTION_tb_size:
3900 tcg_tb_size = strtol(optarg, NULL, 0);
3901 if (tcg_tb_size < 0) {
3905 case QEMU_OPTION_icount:
3906 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3912 case QEMU_OPTION_incoming:
3914 runstate_set(RUN_STATE_INMIGRATE);
3918 case QEMU_OPTION_nodefaults:
3921 case QEMU_OPTION_xen_domid:
3922 if (!(xen_available())) {
3923 error_report("Option not supported for this target");
3926 xen_domid = atoi(optarg);
3928 case QEMU_OPTION_xen_create:
3929 if (!(xen_available())) {
3930 error_report("Option not supported for this target");
3933 xen_mode = XEN_CREATE;
3935 case QEMU_OPTION_xen_attach:
3936 if (!(xen_available())) {
3937 error_report("Option not supported for this target");
3940 xen_mode = XEN_ATTACH;
3942 case QEMU_OPTION_trace:
3944 trace_file = trace_opt_parse(optarg);
3946 case QEMU_OPTION_readconfig:
3948 int ret = qemu_read_config_file(optarg);
3950 error_report("read config %s: %s", optarg,
3956 case QEMU_OPTION_spice:
3957 olist = qemu_find_opts("spice");
3959 error_report("spice support is disabled");
3962 opts = qemu_opts_parse_noisily(olist, optarg, false);
3968 case QEMU_OPTION_writeconfig:
3971 if (strcmp(optarg, "-") == 0) {
3974 fp = fopen(optarg, "w");
3976 error_report("open %s: %s", optarg,
3981 qemu_config_write(fp);
3987 case QEMU_OPTION_qtest:
3988 qtest_chrdev = optarg;
3990 case QEMU_OPTION_qtest_log:
3993 case QEMU_OPTION_sandbox:
3994 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4000 case QEMU_OPTION_add_fd:
4002 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4008 error_report("File descriptor passing is disabled on this "
4013 case QEMU_OPTION_object:
4014 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4020 case QEMU_OPTION_realtime:
4021 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4026 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4028 case QEMU_OPTION_msg:
4029 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4034 configure_msg(opts);
4036 case QEMU_OPTION_dump_vmstate:
4037 if (vmstate_dump_file) {
4038 error_report("only one '-dump-vmstate' "
4039 "option may be given");
4042 vmstate_dump_file = fopen(optarg, "w");
4043 if (vmstate_dump_file == NULL) {
4044 error_report("open %s: %s", optarg, strerror(errno));
4049 os_parse_cmd_args(popt->index, optarg);
4054 * Clear error location left behind by the loop.
4055 * Best done right after the loop. Do not insert code here!
4059 replay_configure(icount_opts);
4061 machine_class = select_machine();
4063 set_memory_options(&ram_slots, &maxram_size, machine_class);
4067 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4068 error_report("could not acquire pid file: %s", strerror(errno));
4072 if (qemu_init_main_loop(&main_loop_err)) {
4073 error_report_err(main_loop_err);
4077 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4078 parse_sandbox, NULL, NULL)) {
4082 if (qemu_opts_foreach(qemu_find_opts("name"),
4083 parse_name, NULL, NULL)) {
4088 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4089 parse_add_fd, NULL, NULL)) {
4093 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4094 cleanup_add_fd, NULL, NULL)) {
4099 current_machine = MACHINE(object_new(object_class_get_name(
4100 OBJECT_CLASS(machine_class))));
4101 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4104 object_property_add_child(object_get_root(), "machine",
4105 OBJECT(current_machine), &error_abort);
4107 if (machine_class->minimum_page_bits) {
4108 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4109 /* This would be a board error: specifying a minimum smaller than
4110 * a target's compile-time fixed setting.
4112 g_assert_not_reached();
4116 cpu_exec_init_all();
4118 if (machine_class->hw_version) {
4119 qemu_set_hw_version(machine_class->hw_version);
4122 if (cpu_model && is_help_option(cpu_model)) {
4123 list_cpus(stdout, &fprintf, cpu_model);
4127 if (!trace_init_backends()) {
4130 trace_init_file(trace_file);
4132 /* Open the logfile at this point and set the log mask if necessary.
4135 qemu_set_log_filename(log_file, &error_fatal);
4140 mask = qemu_str_to_log_mask(log_mask);
4142 qemu_print_log_usage(stdout);
4150 /* If no data_dir is specified then try to find it relative to the
4152 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4153 data_dir[data_dir_idx] = os_find_datadir();
4154 if (data_dir[data_dir_idx] != NULL) {
4158 /* If all else fails use the install path specified when building. */
4159 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4160 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4163 /* -L help lists the data directories and exits. */
4164 if (list_data_dirs) {
4165 for (i = 0; i < data_dir_idx; i++) {
4166 printf("%s\n", data_dir[i]);
4171 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4173 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4174 if (max_cpus > machine_class->max_cpus) {
4175 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4176 "supported by machine '%s' (%d)", max_cpus,
4177 machine_class->name, machine_class->max_cpus);
4182 * Get the default machine options from the machine if it is not already
4183 * specified either by the configuration file or by the command line.
4185 if (machine_class->default_machine_opts) {
4186 qemu_opts_set_defaults(qemu_find_opts("machine"),
4187 machine_class->default_machine_opts, 0);
4190 qemu_opts_foreach(qemu_find_opts("device"),
4191 default_driver_check, NULL, NULL);
4192 qemu_opts_foreach(qemu_find_opts("global"),
4193 default_driver_check, NULL, NULL);
4195 if (!vga_model && !default_vga) {
4196 vga_interface_type = VGA_DEVICE;
4198 if (!has_defaults || machine_class->no_serial) {
4201 if (!has_defaults || machine_class->no_parallel) {
4202 default_parallel = 0;
4204 if (!has_defaults || !machine_class->use_virtcon) {
4205 default_virtcon = 0;
4207 if (!has_defaults || !machine_class->use_sclp) {
4210 if (!has_defaults || machine_class->no_floppy) {
4213 if (!has_defaults || machine_class->no_cdrom) {
4216 if (!has_defaults || machine_class->no_sdcard) {
4219 if (!has_defaults) {
4220 default_monitor = 0;
4225 if (is_daemonized()) {
4226 /* According to documentation and historically, -nographic redirects
4227 * serial port, parallel port and monitor to stdio, which does not work
4228 * with -daemonize. We can redirect these to null instead, but since
4229 * -nographic is legacy, let's just error out.
4230 * We disallow -nographic only if all other ports are not redirected
4231 * explicitly, to not break existing legacy setups which uses
4232 * -nographic _and_ redirects all ports explicitly - this is valid
4233 * usage, -nographic is just a no-op in this case.
4236 && (default_parallel || default_serial
4237 || default_monitor || default_virtcon)) {
4238 error_report("-nographic cannot be used with -daemonize");
4241 #ifdef CONFIG_CURSES
4242 if (display_type == DT_CURSES) {
4243 error_report("curses display cannot be used with -daemonize");
4250 if (default_parallel)
4251 add_device_config(DEV_PARALLEL, "null");
4252 if (default_serial && default_monitor) {
4253 add_device_config(DEV_SERIAL, "mon:stdio");
4254 } else if (default_virtcon && default_monitor) {
4255 add_device_config(DEV_VIRTCON, "mon:stdio");
4256 } else if (default_sclp && default_monitor) {
4257 add_device_config(DEV_SCLP, "mon:stdio");
4260 add_device_config(DEV_SERIAL, "stdio");
4261 if (default_virtcon)
4262 add_device_config(DEV_VIRTCON, "stdio");
4264 add_device_config(DEV_SCLP, "stdio");
4266 if (default_monitor)
4267 monitor_parse("stdio", "readline", false);
4271 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4272 if (default_parallel)
4273 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4274 if (default_monitor)
4275 monitor_parse("vc:80Cx24C", "readline", false);
4276 if (default_virtcon)
4277 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4279 add_device_config(DEV_SCLP, "vc:80Cx24C");
4283 #if defined(CONFIG_VNC)
4284 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4288 if (display_type == DT_DEFAULT && !display_remote) {
4289 #if defined(CONFIG_GTK)
4290 display_type = DT_GTK;
4291 #elif defined(CONFIG_SDL)
4292 display_type = DT_SDL;
4293 #elif defined(CONFIG_COCOA)
4294 display_type = DT_COCOA;
4295 #elif defined(CONFIG_VNC)
4296 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4298 display_type = DT_NONE;
4302 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4303 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4304 "for SDL, ignoring option");
4306 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4307 error_report("-no-quit is only valid for GTK and SDL, "
4311 if (display_type == DT_GTK) {
4312 early_gtk_display_init(request_opengl);
4315 if (display_type == DT_SDL) {
4316 sdl_display_early_init(request_opengl);
4319 if (request_opengl == 1 && display_opengl == 0) {
4320 #if defined(CONFIG_OPENGL)
4321 error_report("OpenGL is not supported by the display");
4323 error_report("OpenGL support is disabled");
4331 if (qemu_opts_foreach(qemu_find_opts("object"),
4332 user_creatable_add_opts_foreach,
4333 object_create_initial, NULL)) {
4337 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4338 chardev_init_func, NULL, NULL)) {
4342 #ifdef CONFIG_VIRTFS
4343 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4344 fsdev_init_func, NULL, NULL)) {
4349 if (qemu_opts_foreach(qemu_find_opts("device"),
4350 device_help_func, NULL, NULL)) {
4354 machine_opts = qemu_get_machine_opts();
4355 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4357 object_unref(OBJECT(current_machine));
4361 configure_accelerator(current_machine);
4364 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4367 machine_opts = qemu_get_machine_opts();
4368 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4369 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4370 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4371 bios_name = qemu_opt_get(machine_opts, "firmware");
4373 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4375 boot_order = qemu_opt_get(opts, "order");
4377 validate_bootdevices(boot_order, &error_fatal);
4380 boot_once = qemu_opt_get(opts, "once");
4382 validate_bootdevices(boot_once, &error_fatal);
4385 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4386 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4390 boot_order = machine_class->default_boot_order;
4393 if (!kernel_cmdline) {
4394 kernel_cmdline = "";
4395 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4398 linux_boot = (kernel_filename != NULL);
4400 if (!linux_boot && *kernel_cmdline != '\0') {
4401 error_report("-append only allowed with -kernel option");
4405 if (!linux_boot && initrd_filename != NULL) {
4406 error_report("-initrd only allowed with -kernel option");
4410 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4411 /* fall back to the -kernel/-append */
4412 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4415 os_set_line_buffering();
4417 /* spice needs the timers to be initialized by this point */
4422 if (kvm_enabled() || xen_enabled()) {
4423 error_report("-icount is not allowed with kvm or xen");
4426 configure_icount(icount_opts, &error_abort);
4427 qemu_opts_del(icount_opts);
4431 QemuOptsList *net = qemu_find_opts("net");
4432 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4434 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4440 if (net_init_clients() < 0) {
4444 if (qemu_opts_foreach(qemu_find_opts("object"),
4445 user_creatable_add_opts_foreach,
4446 object_create_delayed, NULL)) {
4451 if (tpm_init() < 0) {
4456 /* init the bluetooth world */
4457 if (foreach_device_config(DEV_BT, bt_parse))
4460 if (!xen_enabled()) {
4461 /* On 32-bit hosts, QEMU is limited by virtual address space */
4462 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4463 error_report("at most 2047 MB RAM can be simulated");
4471 /* If the currently selected machine wishes to override the units-per-bus
4472 * property of its default HBA interface type, do so now. */
4473 if (machine_class->units_per_default_bus) {
4474 override_max_devs(machine_class->block_default_type,
4475 machine_class->units_per_default_bus);
4478 /* open the virtual block devices */
4479 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4480 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4483 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4484 &machine_class->block_default_type, NULL)) {
4488 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4490 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4491 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4493 parse_numa_opts(machine_class);
4495 if (qemu_opts_foreach(qemu_find_opts("mon"),
4496 mon_init_func, NULL, NULL)) {
4500 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4502 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4504 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4506 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4509 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4512 /* If no default VGA is requested, the default is "none". */
4514 if (machine_class->default_display) {
4515 vga_model = machine_class->default_display;
4516 } else if (vga_interface_available(VGA_CIRRUS)) {
4517 vga_model = "cirrus";
4518 } else if (vga_interface_available(VGA_STD)) {
4523 select_vgahw(vga_model);
4527 i = select_watchdog(watchdog);
4529 exit (i == 1 ? 1 : 0);
4532 machine_register_compat_props(current_machine);
4534 qemu_opts_foreach(qemu_find_opts("global"),
4535 global_init_func, NULL, NULL);
4537 /* This checkpoint is required by replay to separate prior clock
4538 reading from the other reads, because timer polling functions query
4539 clock values from the log. */
4540 replay_checkpoint(CHECKPOINT_INIT);
4541 qdev_machine_init();
4543 current_machine->ram_size = ram_size;
4544 current_machine->maxram_size = maxram_size;
4545 current_machine->ram_slots = ram_slots;
4546 current_machine->boot_order = boot_order;
4547 current_machine->cpu_model = cpu_model;
4549 machine_class->init(current_machine);
4555 cpu_synchronize_all_post_init();
4557 numa_post_machine_init();
4559 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4560 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4564 /* init USB devices */
4565 if (machine_usb(current_machine)) {
4566 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4570 /* Check if IGD GFX passthrough. */
4573 /* init generic devices */
4574 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4575 if (qemu_opts_foreach(qemu_find_opts("device"),
4576 device_init_func, NULL, NULL)) {
4579 rom_reset_order_override();
4581 /* Did we create any drives that we failed to create a device for? */
4582 drive_check_orphaned();
4584 /* Don't warn about the default network setup that you get if
4585 * no command line -net or -netdev options are specified. There
4586 * are two cases that we would otherwise complain about:
4587 * (1) board doesn't support a NIC but the implicit "-net nic"
4589 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4590 * sets up a nic that isn't connected to anything.
4593 net_check_clients();
4598 qemu_boot_set(boot_once, &error_fatal);
4599 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4602 ds = init_displaystate();
4604 /* init local displays */
4605 switch (display_type) {
4607 curses_display_init(ds, full_screen);
4610 sdl_display_init(ds, full_screen, no_frame);
4613 cocoa_display_init(ds, full_screen);
4616 gtk_display_init(ds, full_screen, grab_on_hover);
4622 /* must be after terminal init, SDL library changes signal handlers */
4623 os_setup_signal_handling();
4625 /* init remote displays */
4627 qemu_opts_foreach(qemu_find_opts("vnc"),
4628 vnc_init_func, NULL, NULL);
4632 qemu_spice_display_init();
4635 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4639 qdev_machine_creation_done();
4641 /* TODO: once all bus devices are qdevified, this should be done
4642 * when bus is created by qdev.c */
4643 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4644 qemu_run_machine_init_done_notifiers();
4646 if (rom_check_and_register_reset() != 0) {
4647 error_report("rom check and register reset failed");
4653 /* This checkpoint is required by replay to separate prior clock
4654 reading from the other reads, because timer polling functions query
4655 clock values from the log. */
4656 replay_checkpoint(CHECKPOINT_RESET);
4657 qemu_system_reset(VMRESET_SILENT);
4658 register_global_state();
4660 if (load_vmstate(loadvm) < 0) {
4665 qdev_prop_check_globals();
4666 if (vmstate_dump_file) {
4668 dump_vmstate_json_to_file(vmstate_dump_file);
4673 Error *local_err = NULL;
4674 qemu_start_incoming_migration(incoming, &local_err);
4676 error_reportf_err(local_err, "-incoming %s: ", incoming);
4679 } else if (autostart) {
4686 replay_disable_events();
4687 iothread_stop_all();
4693 /* vhost-user must be cleaned up before chardevs. */