4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
35 #if defined(__APPLE__) || defined(main)
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
40 return qemu_main(argc, argv, NULL);
43 #define main qemu_main
45 #endif /* CONFIG_SDL */
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/smbios/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
103 #include "fsdev/qemu-fsdev.h"
105 #include "sysemu/qtest.h"
107 #include "disas/disas.h"
110 #include "slirp/libslirp.h"
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qmp/qerror.h"
132 #include "sysemu/iothread.h"
134 #define MAX_VIRTIO_CONSOLES 1
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 const char* keyboard_layout = NULL;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
148 NICInfo nd_table[MAX_NICS];
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
154 static DisplayOptions dpy;
156 static int num_serial_hds;
157 static Chardev **serial_hds;
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 int win2k_install_hack = 0;
163 unsigned int max_cpus;
166 int acpi_enabled = 1;
169 static int no_reboot;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
177 const char *qemu_name;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
188 int icount_align_option;
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial", .flag = &default_virtcon },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
242 static QemuOptsList qemu_rtc_opts = {
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .type = QEMU_OPT_STRING,
251 .type = QEMU_OPT_STRING,
254 .type = QEMU_OPT_STRING,
256 { /* end of list */ }
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
267 .type = QEMU_OPT_NUMBER,
270 .type = QEMU_OPT_STRING,
272 { /* end of list */ }
276 static QemuOptsList qemu_machine_opts = {
278 .implied_opt_name = "type",
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
291 static QemuOptsList qemu_accel_opts = {
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
299 .type = QEMU_OPT_STRING,
300 .help = "Select the type of accelerator",
304 .type = QEMU_OPT_STRING,
305 .help = "Enable/disable multi-threaded TCG",
307 { /* end of list */ }
311 static QemuOptsList qemu_boot_opts = {
313 .implied_opt_name = "order",
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
319 .type = QEMU_OPT_STRING,
322 .type = QEMU_OPT_STRING,
325 .type = QEMU_OPT_BOOL,
328 .type = QEMU_OPT_STRING,
330 .name = "splash-time",
331 .type = QEMU_OPT_STRING,
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_STRING,
337 .type = QEMU_OPT_BOOL,
343 static QemuOptsList qemu_add_fd_opts = {
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
349 .type = QEMU_OPT_NUMBER,
350 .help = "file descriptor of which a duplicate is added to fd set",
353 .type = QEMU_OPT_NUMBER,
354 .help = "ID of the fd set to add fd to",
357 .type = QEMU_OPT_STRING,
358 .help = "free-form string used to describe fd",
360 { /* end of list */ }
364 static QemuOptsList qemu_object_opts = {
366 .implied_opt_name = "qom-type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
373 static QemuOptsList qemu_tpmdev_opts = {
375 .implied_opt_name = "type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
383 static QemuOptsList qemu_realtime_opts = {
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
389 .type = QEMU_OPT_BOOL,
391 { /* end of list */ }
395 static QemuOptsList qemu_overcommit_opts = {
396 .name = "overcommit",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
401 .type = QEMU_OPT_BOOL,
405 .type = QEMU_OPT_BOOL,
407 { /* end of list */ }
411 static QemuOptsList qemu_msg_opts = {
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
417 .type = QEMU_OPT_BOOL,
419 { /* end of list */ }
423 static QemuOptsList qemu_name_opts = {
425 .implied_opt_name = "guest",
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
437 .type = QEMU_OPT_STRING,
438 .help = "Sets the name of the QEMU process, as shown in top etc",
440 .name = "debug-threads",
441 .type = QEMU_OPT_BOOL,
442 .help = "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
446 { /* End of list */ }
450 static QemuOptsList qemu_mem_opts = {
452 .implied_opt_name = "size",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
458 .type = QEMU_OPT_SIZE,
462 .type = QEMU_OPT_NUMBER,
466 .type = QEMU_OPT_SIZE,
468 { /* end of list */ }
472 static QemuOptsList qemu_icount_opts = {
474 .implied_opt_name = "shift",
476 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
480 .type = QEMU_OPT_STRING,
483 .type = QEMU_OPT_BOOL,
486 .type = QEMU_OPT_BOOL,
489 .type = QEMU_OPT_STRING,
492 .type = QEMU_OPT_STRING,
494 .name = "rrsnapshot",
495 .type = QEMU_OPT_STRING,
497 { /* end of list */ }
501 static QemuOptsList qemu_semihosting_config_opts = {
502 .name = "semihosting-config",
503 .implied_opt_name = "enable",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
508 .type = QEMU_OPT_BOOL,
511 .type = QEMU_OPT_STRING,
514 .type = QEMU_OPT_STRING,
516 { /* end of list */ }
520 static QemuOptsList qemu_fw_cfg_opts = {
522 .implied_opt_name = "name",
523 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
527 .type = QEMU_OPT_STRING,
528 .help = "Sets the fw_cfg name of the blob to be inserted",
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the name of the file from which\n"
533 "the fw_cfg blob will be loaded",
536 .type = QEMU_OPT_STRING,
537 .help = "Sets content of the blob to be inserted from a string",
539 { /* end of list */ }
544 * Get machine options
546 * Returns: machine options (never null).
548 QemuOpts *qemu_get_machine_opts(void)
550 return qemu_find_opts_singleton("machine");
553 const char *qemu_get_vm_name(void)
558 static void res_free(void)
560 g_free(boot_splash_filedata);
561 boot_splash_filedata = NULL;
564 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
566 const char *driver = qemu_opt_get(opts, "driver");
571 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
572 if (strcmp(default_list[i].driver, driver) != 0)
574 *(default_list[i].flag) = 0;
579 /***********************************************************/
582 static RunState current_run_state = RUN_STATE_PRECONFIG;
584 /* We use RUN_STATE__MAX but any invalid value will do */
585 static RunState vmstop_requested = RUN_STATE__MAX;
586 static QemuMutex vmstop_lock;
591 } RunStateTransition;
593 static const RunStateTransition runstate_transitions_def[] = {
595 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
596 /* Early switch to inmigrate state to allow -incoming CLI option work
597 * as it used to. TODO: delay actual switching to inmigrate state to
598 * the point after machine is built and remove this hack.
600 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
602 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
603 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
606 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
607 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
608 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
611 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
612 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
613 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
623 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
624 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
628 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
630 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_PAUSED, RUN_STATE_COLO},
633 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
634 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
637 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
638 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
641 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
647 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_COLO, RUN_STATE_RUNNING },
652 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
653 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
654 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
655 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
656 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
658 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
659 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
660 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
661 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
662 { RUN_STATE_RUNNING, RUN_STATE_COLO},
664 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
666 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
667 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
670 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
671 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
672 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
673 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
674 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
675 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
677 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
678 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
682 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
683 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
686 { RUN_STATE__MAX, RUN_STATE__MAX },
689 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
691 bool runstate_check(RunState state)
693 return current_run_state == state;
696 bool runstate_store(char *str, size_t size)
698 const char *state = RunState_str(current_run_state);
699 size_t len = strlen(state) + 1;
704 memcpy(str, state, len);
708 static void runstate_init(void)
710 const RunStateTransition *p;
712 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
713 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
714 runstate_valid_transitions[p->from][p->to] = true;
717 qemu_mutex_init(&vmstop_lock);
720 /* This function will abort() on invalid state transitions */
721 void runstate_set(RunState new_state)
723 assert(new_state < RUN_STATE__MAX);
725 if (current_run_state == new_state) {
729 if (!runstate_valid_transitions[current_run_state][new_state]) {
730 error_report("invalid runstate transition: '%s' -> '%s'",
731 RunState_str(current_run_state),
732 RunState_str(new_state));
735 trace_runstate_set(new_state);
736 current_run_state = new_state;
739 int runstate_is_running(void)
741 return runstate_check(RUN_STATE_RUNNING);
744 bool runstate_needs_reset(void)
746 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
747 runstate_check(RUN_STATE_SHUTDOWN);
750 StatusInfo *qmp_query_status(Error **errp)
752 StatusInfo *info = g_malloc0(sizeof(*info));
754 info->running = runstate_is_running();
755 info->singlestep = singlestep;
756 info->status = current_run_state;
761 bool qemu_vmstop_requested(RunState *r)
763 qemu_mutex_lock(&vmstop_lock);
764 *r = vmstop_requested;
765 vmstop_requested = RUN_STATE__MAX;
766 qemu_mutex_unlock(&vmstop_lock);
767 return *r < RUN_STATE__MAX;
770 void qemu_system_vmstop_request_prepare(void)
772 qemu_mutex_lock(&vmstop_lock);
775 void qemu_system_vmstop_request(RunState state)
777 vmstop_requested = state;
778 qemu_mutex_unlock(&vmstop_lock);
782 /***********************************************************/
783 /* real time host monotonic timer */
785 static time_t qemu_time(void)
787 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
790 /***********************************************************/
791 /* host time/date access */
792 void qemu_get_timedate(struct tm *tm, int offset)
794 time_t ti = qemu_time();
797 if (rtc_date_offset == -1) {
801 localtime_r(&ti, tm);
803 ti -= rtc_date_offset;
808 int qemu_timedate_diff(struct tm *tm)
812 if (rtc_date_offset == -1)
814 seconds = mktimegm(tm);
817 tmp.tm_isdst = -1; /* use timezone to figure it out */
818 seconds = mktime(&tmp);
821 seconds = mktimegm(tm) + rtc_date_offset;
823 return seconds - qemu_time();
826 static void configure_rtc_date_offset(const char *startdate)
828 time_t rtc_start_date;
831 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
832 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
834 } else if (sscanf(startdate, "%d-%d-%d",
835 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
844 rtc_start_date = mktimegm(&tm);
845 if (rtc_start_date == -1) {
847 error_report("invalid date format");
848 error_printf("valid formats: "
849 "'2006-06-17T16:01:21' or '2006-06-17'\n");
852 rtc_date_offset = qemu_time() - rtc_start_date;
855 static void configure_rtc(QemuOpts *opts)
859 value = qemu_opt_get(opts, "base");
861 if (!strcmp(value, "utc")) {
863 } else if (!strcmp(value, "localtime")) {
864 Error *blocker = NULL;
866 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
867 "-rtc base=localtime");
868 replay_add_blocker(blocker);
870 configure_rtc_date_offset(value);
873 value = qemu_opt_get(opts, "clock");
875 if (!strcmp(value, "host")) {
876 rtc_clock = QEMU_CLOCK_HOST;
877 } else if (!strcmp(value, "rt")) {
878 rtc_clock = QEMU_CLOCK_REALTIME;
879 } else if (!strcmp(value, "vm")) {
880 rtc_clock = QEMU_CLOCK_VIRTUAL;
882 error_report("invalid option value '%s'", value);
886 value = qemu_opt_get(opts, "driftfix");
888 if (!strcmp(value, "slew")) {
889 static GlobalProperty slew_lost_ticks = {
890 .driver = "mc146818rtc",
891 .property = "lost_tick_policy",
895 qdev_prop_register_global(&slew_lost_ticks);
896 } else if (!strcmp(value, "none")) {
897 /* discard is default */
899 error_report("invalid option value '%s'", value);
905 /***********************************************************/
906 /* Bluetooth support */
909 static struct HCIInfo *hci_table[MAX_NICS];
911 struct HCIInfo *qemu_next_hci(void)
913 if (cur_hci == nb_hcis)
916 return hci_table[cur_hci++];
919 static int bt_hci_parse(const char *str)
924 if (nb_hcis >= MAX_NICS) {
925 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
938 bdaddr.b[5] = 0x56 + nb_hcis;
939 hci->bdaddr_set(hci, bdaddr.b);
941 hci_table[nb_hcis++] = hci;
946 static void bt_vhci_add(int vlan_id)
948 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
951 warn_report("adding a VHCI to an empty scatternet %i",
954 bt_vhci_init(bt_new_hci(vlan));
957 static struct bt_device_s *bt_device_add(const char *opt)
959 struct bt_scatternet_s *vlan;
961 char *endp = strstr(opt, ",vlan=");
962 int len = (endp ? endp - opt : strlen(opt)) + 1;
965 pstrcpy(devname, MIN(sizeof(devname), len), opt);
968 vlan_id = strtol(endp + 6, &endp, 0);
970 error_report("unrecognised bluetooth vlan Id");
975 vlan = qemu_find_bt_vlan(vlan_id);
978 warn_report("adding a slave device to an empty scatternet %i",
981 if (!strcmp(devname, "keyboard"))
982 return bt_keyboard_init(vlan);
984 error_report("unsupported bluetooth device '%s'", devname);
988 static int bt_parse(const char *opt)
990 const char *endp, *p;
993 if (strstart(opt, "hci", &endp)) {
994 if (!*endp || *endp == ',') {
996 if (!strstart(endp, ",vlan=", 0))
999 return bt_hci_parse(opt);
1001 } else if (strstart(opt, "vhci", &endp)) {
1002 if (!*endp || *endp == ',') {
1004 if (strstart(endp, ",vlan=", &p)) {
1005 vlan = strtol(p, (char **) &endp, 0);
1007 error_report("bad scatternet '%s'", p);
1011 error_report("bad parameter '%s'", endp + 1);
1020 } else if (strstart(opt, "device:", &endp))
1021 return !bt_device_add(endp);
1023 error_report("bad bluetooth parameter '%s'", opt);
1027 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1029 const char *proc_name;
1031 if (qemu_opt_get(opts, "debug-threads")) {
1032 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1034 qemu_name = qemu_opt_get(opts, "guest");
1036 proc_name = qemu_opt_get(opts, "process");
1038 os_set_proc_name(proc_name);
1044 bool defaults_enabled(void)
1046 return has_defaults;
1050 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1052 int fd, dupfd, flags;
1054 const char *fd_opaque = NULL;
1057 fd = qemu_opt_get_number(opts, "fd", -1);
1058 fdset_id = qemu_opt_get_number(opts, "set", -1);
1059 fd_opaque = qemu_opt_get(opts, "opaque");
1062 error_report("fd option is required and must be non-negative");
1066 if (fd <= STDERR_FILENO) {
1067 error_report("fd cannot be a standard I/O stream");
1072 * All fds inherited across exec() necessarily have FD_CLOEXEC
1073 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1075 flags = fcntl(fd, F_GETFD);
1076 if (flags == -1 || (flags & FD_CLOEXEC)) {
1077 error_report("fd is not valid or already in use");
1082 error_report("set option is required and must be non-negative");
1086 #ifdef F_DUPFD_CLOEXEC
1087 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1091 qemu_set_cloexec(dupfd);
1095 error_report("error duplicating fd: %s", strerror(errno));
1099 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1100 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1107 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1111 fd = qemu_opt_get_number(opts, "fd", -1);
1118 /***********************************************************/
1119 /* QEMU Block devices */
1121 #define HD_OPTS "media=disk"
1122 #define CDROM_OPTS "media=cdrom"
1124 #define PFLASH_OPTS ""
1128 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1130 BlockInterfaceType *block_default_type = opaque;
1132 return drive_new(opts, *block_default_type) == NULL;
1135 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1137 if (qemu_opt_get(opts, "snapshot") == NULL) {
1138 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1143 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1144 int index, const char *optstr)
1149 if (!enable || drive_get_by_index(type, index)) {
1153 opts = drive_add(type, index, NULL, optstr);
1155 drive_enable_snapshot(NULL, opts, NULL);
1158 dinfo = drive_new(opts, type);
1162 dinfo->is_default = true;
1166 static QemuOptsList qemu_smp_opts = {
1168 .implied_opt_name = "cpus",
1169 .merge_lists = true,
1170 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1174 .type = QEMU_OPT_NUMBER,
1177 .type = QEMU_OPT_NUMBER,
1180 .type = QEMU_OPT_NUMBER,
1183 .type = QEMU_OPT_NUMBER,
1186 .type = QEMU_OPT_NUMBER,
1188 { /*End of list */ }
1192 static void smp_parse(QemuOpts *opts)
1195 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1196 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1197 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1198 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1200 /* compute missing values, prefer sockets over cores over threads */
1201 if (cpus == 0 || sockets == 0) {
1202 sockets = sockets > 0 ? sockets : 1;
1203 cores = cores > 0 ? cores : 1;
1204 threads = threads > 0 ? threads : 1;
1206 cpus = cores * threads * sockets;
1208 } else if (cores == 0) {
1209 threads = threads > 0 ? threads : 1;
1210 cores = cpus / (sockets * threads);
1211 cores = cores > 0 ? cores : 1;
1212 } else if (threads == 0) {
1213 threads = cpus / (cores * sockets);
1214 threads = threads > 0 ? threads : 1;
1215 } else if (sockets * cores * threads < cpus) {
1216 error_report("cpu topology: "
1217 "sockets (%u) * cores (%u) * threads (%u) < "
1219 sockets, cores, threads, cpus);
1223 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1225 if (max_cpus < cpus) {
1226 error_report("maxcpus must be equal to or greater than smp");
1230 if (sockets * cores * threads > max_cpus) {
1231 error_report("cpu topology: "
1232 "sockets (%u) * cores (%u) * threads (%u) > "
1234 sockets, cores, threads, max_cpus);
1240 smp_threads = threads;
1244 Error *blocker = NULL;
1245 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1246 replay_add_blocker(blocker);
1250 static void realtime_init(void)
1253 if (os_mlock() < 0) {
1254 error_report("locking memory failed");
1261 static void configure_msg(QemuOpts *opts)
1263 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1266 /***********************************************************/
1269 typedef struct SemihostingConfig {
1271 SemihostingTarget target;
1274 const char *cmdline; /* concatenated argv */
1275 } SemihostingConfig;
1277 static SemihostingConfig semihosting;
1279 bool semihosting_enabled(void)
1281 return semihosting.enabled;
1284 SemihostingTarget semihosting_get_target(void)
1286 return semihosting.target;
1289 const char *semihosting_get_arg(int i)
1291 if (i >= semihosting.argc) {
1294 return semihosting.argv[i];
1297 int semihosting_get_argc(void)
1299 return semihosting.argc;
1302 const char *semihosting_get_cmdline(void)
1304 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1305 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1307 return semihosting.cmdline;
1310 static int add_semihosting_arg(void *opaque,
1311 const char *name, const char *val,
1314 SemihostingConfig *s = opaque;
1315 if (strcmp(name, "arg") == 0) {
1317 /* one extra element as g_strjoinv() expects NULL-terminated array */
1318 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1319 s->argv[s->argc - 1] = val;
1320 s->argv[s->argc] = NULL;
1325 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1326 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1331 add_semihosting_arg(&semihosting, "arg", file, NULL);
1333 /* split -append and initialize argv[1..n] */
1334 cmd_token = strtok(g_strdup(cmd), " ");
1336 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1337 cmd_token = strtok(NULL, " ");
1341 /* Now we still need this for compatibility with XEN. */
1342 bool has_igd_gfx_passthru;
1343 static void igd_gfx_passthru(void)
1345 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1348 /***********************************************************/
1351 static int usb_device_add(const char *devname)
1353 USBDevice *dev = NULL;
1355 if (!machine_usb(current_machine)) {
1359 dev = usbdevice_create(devname);
1366 static int usb_parse(const char *cmdline)
1369 r = usb_device_add(cmdline);
1371 error_report("could not add USB device '%s'", cmdline);
1376 /***********************************************************/
1377 /* machine registration */
1379 MachineState *current_machine;
1381 static MachineClass *find_machine(const char *name)
1383 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1384 MachineClass *mc = NULL;
1386 for (el = machines; el; el = el->next) {
1387 MachineClass *temp = el->data;
1389 if (!strcmp(temp->name, name)) {
1394 !strcmp(temp->alias, name)) {
1400 g_slist_free(machines);
1404 MachineClass *find_default_machine(void)
1406 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1407 MachineClass *mc = NULL;
1409 for (el = machines; el; el = el->next) {
1410 MachineClass *temp = el->data;
1412 if (temp->is_default) {
1418 g_slist_free(machines);
1422 MachineInfoList *qmp_query_machines(Error **errp)
1424 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1425 MachineInfoList *mach_list = NULL;
1427 for (el = machines; el; el = el->next) {
1428 MachineClass *mc = el->data;
1429 MachineInfoList *entry;
1432 info = g_malloc0(sizeof(*info));
1433 if (mc->is_default) {
1434 info->has_is_default = true;
1435 info->is_default = true;
1439 info->has_alias = true;
1440 info->alias = g_strdup(mc->alias);
1443 info->name = g_strdup(mc->name);
1444 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1445 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1447 entry = g_malloc0(sizeof(*entry));
1448 entry->value = info;
1449 entry->next = mach_list;
1453 g_slist_free(machines);
1457 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1459 ObjectProperty *prop;
1460 ObjectPropertyIterator iter;
1462 if (!qemu_opt_has_help_opt(opts)) {
1466 object_property_iter_init(&iter, OBJECT(machine));
1467 while ((prop = object_property_iter_next(&iter))) {
1472 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1473 prop->name, prop->type);
1474 if (prop->description) {
1475 error_printf(" (%s)\n", prop->description);
1484 /***********************************************************/
1485 /* main execution loop */
1487 struct vm_change_state_entry {
1488 VMChangeStateHandler *cb;
1490 QLIST_ENTRY (vm_change_state_entry) entries;
1493 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1495 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1498 VMChangeStateEntry *e;
1500 e = g_malloc0(sizeof (*e));
1504 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1508 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1510 QLIST_REMOVE (e, entries);
1514 void vm_state_notify(int running, RunState state)
1516 VMChangeStateEntry *e, *next;
1518 trace_vm_state_notify(running, state);
1520 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1521 e->cb(e->opaque, running, state);
1525 static ShutdownCause reset_requested;
1526 static ShutdownCause shutdown_requested;
1527 static int shutdown_signal;
1528 static pid_t shutdown_pid;
1529 static int powerdown_requested;
1530 static int debug_requested;
1531 static int suspend_requested;
1532 static bool preconfig_exit_requested = true;
1533 static WakeupReason wakeup_reason;
1534 static NotifierList powerdown_notifiers =
1535 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1536 static NotifierList suspend_notifiers =
1537 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1538 static NotifierList wakeup_notifiers =
1539 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1540 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1542 ShutdownCause qemu_shutdown_requested_get(void)
1544 return shutdown_requested;
1547 ShutdownCause qemu_reset_requested_get(void)
1549 return reset_requested;
1552 static int qemu_shutdown_requested(void)
1554 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1557 static void qemu_kill_report(void)
1559 if (!qtest_driver() && shutdown_signal) {
1560 if (shutdown_pid == 0) {
1561 /* This happens for eg ^C at the terminal, so it's worth
1562 * avoiding printing an odd message in that case.
1564 error_report("terminating on signal %d", shutdown_signal);
1566 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1568 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1569 shutdown_signal, shutdown_pid,
1570 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1571 g_free(shutdown_cmd);
1573 shutdown_signal = 0;
1577 static ShutdownCause qemu_reset_requested(void)
1579 ShutdownCause r = reset_requested;
1581 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1582 reset_requested = SHUTDOWN_CAUSE_NONE;
1585 return SHUTDOWN_CAUSE_NONE;
1588 static int qemu_suspend_requested(void)
1590 int r = suspend_requested;
1591 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1592 suspend_requested = 0;
1598 static WakeupReason qemu_wakeup_requested(void)
1600 return wakeup_reason;
1603 static int qemu_powerdown_requested(void)
1605 int r = powerdown_requested;
1606 powerdown_requested = 0;
1610 static int qemu_debug_requested(void)
1612 int r = debug_requested;
1613 debug_requested = 0;
1617 void qemu_exit_preconfig_request(void)
1619 preconfig_exit_requested = true;
1623 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1625 void qemu_system_reset(ShutdownCause reason)
1629 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1631 cpu_synchronize_all_states();
1633 if (mc && mc->reset) {
1636 qemu_devices_reset();
1638 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1639 qapi_event_send_reset(shutdown_caused_by_guest(reason));
1641 cpu_synchronize_all_post_reset();
1644 void qemu_system_guest_panicked(GuestPanicInformation *info)
1646 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1649 current_cpu->crash_occurred = true;
1651 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1653 vm_stop(RUN_STATE_GUEST_PANICKED);
1655 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1657 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1661 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1662 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1663 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1664 info->u.hyper_v.arg1,
1665 info->u.hyper_v.arg2,
1666 info->u.hyper_v.arg3,
1667 info->u.hyper_v.arg4,
1668 info->u.hyper_v.arg5);
1669 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1670 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1671 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1673 S390CrashReason_str(info->u.s390.reason),
1674 info->u.s390.psw_mask,
1675 info->u.s390.psw_addr);
1677 qapi_free_GuestPanicInformation(info);
1681 void qemu_system_reset_request(ShutdownCause reason)
1683 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1684 shutdown_requested = reason;
1686 reset_requested = reason;
1689 qemu_notify_event();
1692 static void qemu_system_suspend(void)
1695 notifier_list_notify(&suspend_notifiers, NULL);
1696 runstate_set(RUN_STATE_SUSPENDED);
1697 qapi_event_send_suspend();
1700 void qemu_system_suspend_request(void)
1702 if (runstate_check(RUN_STATE_SUSPENDED)) {
1705 suspend_requested = 1;
1707 qemu_notify_event();
1710 void qemu_register_suspend_notifier(Notifier *notifier)
1712 notifier_list_add(&suspend_notifiers, notifier);
1715 void qemu_system_wakeup_request(WakeupReason reason)
1717 trace_system_wakeup_request(reason);
1719 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1722 if (!(wakeup_reason_mask & (1 << reason))) {
1725 runstate_set(RUN_STATE_RUNNING);
1726 wakeup_reason = reason;
1727 qemu_notify_event();
1730 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1733 wakeup_reason_mask |= (1 << reason);
1735 wakeup_reason_mask &= ~(1 << reason);
1739 void qemu_register_wakeup_notifier(Notifier *notifier)
1741 notifier_list_add(&wakeup_notifiers, notifier);
1744 void qemu_system_killed(int signal, pid_t pid)
1746 shutdown_signal = signal;
1750 /* Cannot call qemu_system_shutdown_request directly because
1751 * we are in a signal handler.
1753 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1754 qemu_notify_event();
1757 void qemu_system_shutdown_request(ShutdownCause reason)
1759 trace_qemu_system_shutdown_request(reason);
1760 replay_shutdown_request(reason);
1761 shutdown_requested = reason;
1762 qemu_notify_event();
1765 static void qemu_system_powerdown(void)
1767 qapi_event_send_powerdown();
1768 notifier_list_notify(&powerdown_notifiers, NULL);
1771 void qemu_system_powerdown_request(void)
1773 trace_qemu_system_powerdown_request();
1774 powerdown_requested = 1;
1775 qemu_notify_event();
1778 void qemu_register_powerdown_notifier(Notifier *notifier)
1780 notifier_list_add(&powerdown_notifiers, notifier);
1783 void qemu_system_debug_request(void)
1785 debug_requested = 1;
1786 qemu_notify_event();
1789 static bool main_loop_should_exit(void)
1792 ShutdownCause request;
1794 if (preconfig_exit_requested) {
1795 if (runstate_check(RUN_STATE_PRECONFIG)) {
1796 runstate_set(RUN_STATE_PRELAUNCH);
1798 preconfig_exit_requested = false;
1801 if (qemu_debug_requested()) {
1802 vm_stop(RUN_STATE_DEBUG);
1804 if (qemu_suspend_requested()) {
1805 qemu_system_suspend();
1807 request = qemu_shutdown_requested();
1810 qapi_event_send_shutdown(shutdown_caused_by_guest(request));
1812 vm_stop(RUN_STATE_SHUTDOWN);
1817 request = qemu_reset_requested();
1820 qemu_system_reset(request);
1822 if (!runstate_check(RUN_STATE_RUNNING) &&
1823 !runstate_check(RUN_STATE_INMIGRATE)) {
1824 runstate_set(RUN_STATE_PRELAUNCH);
1827 if (qemu_wakeup_requested()) {
1829 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1830 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1831 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1833 qapi_event_send_wakeup();
1835 if (qemu_powerdown_requested()) {
1836 qemu_system_powerdown();
1838 if (qemu_vmstop_requested(&r)) {
1844 static void main_loop(void)
1846 #ifdef CONFIG_PROFILER
1849 while (!main_loop_should_exit()) {
1850 #ifdef CONFIG_PROFILER
1851 ti = profile_getclock();
1853 main_loop_wait(false);
1854 #ifdef CONFIG_PROFILER
1855 dev_time += profile_getclock() - ti;
1860 static void version(void)
1862 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1863 QEMU_COPYRIGHT "\n");
1866 static void help(int exitcode)
1869 printf("usage: %s [options] [disk_image]\n\n"
1870 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1871 error_get_progname());
1873 #define QEMU_OPTIONS_GENERATE_HELP
1874 #include "qemu-options-wrapper.h"
1876 printf("\nDuring emulation, the following keys are useful:\n"
1877 "ctrl-alt-f toggle full screen\n"
1878 "ctrl-alt-n switch to virtual console 'n'\n"
1879 "ctrl-alt toggle mouse and keyboard grab\n"
1881 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1883 QEMU_HELP_BOTTOM "\n");
1888 #define HAS_ARG 0x0001
1890 typedef struct QEMUOption {
1897 static const QEMUOption qemu_options[] = {
1898 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1899 #define QEMU_OPTIONS_GENERATE_OPTIONS
1900 #include "qemu-options-wrapper.h"
1904 typedef struct VGAInterfaceInfo {
1905 const char *opt_name; /* option name */
1906 const char *name; /* human-readable name */
1907 /* Class names indicating that support is available.
1908 * If no class is specified, the interface is always available */
1909 const char *class_names[2];
1912 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1918 .name = "standard VGA",
1919 .class_names = { "VGA", "isa-vga" },
1922 .opt_name = "cirrus",
1923 .name = "Cirrus VGA",
1924 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1927 .opt_name = "vmware",
1928 .name = "VMWare SVGA",
1929 .class_names = { "vmware-svga" },
1932 .opt_name = "virtio",
1933 .name = "Virtio VGA",
1934 .class_names = { "virtio-vga" },
1939 .class_names = { "qxl-vga" },
1943 .name = "TCX framebuffer",
1944 .class_names = { "SUNW,tcx" },
1948 .name = "CG3 framebuffer",
1949 .class_names = { "cgthree" },
1952 .opt_name = "xenfb",
1956 static bool vga_interface_available(VGAInterfaceType t)
1958 VGAInterfaceInfo *ti = &vga_interfaces[t];
1960 assert(t < VGA_TYPE_MAX);
1961 return !ti->class_names[0] ||
1962 object_class_by_name(ti->class_names[0]) ||
1963 object_class_by_name(ti->class_names[1]);
1966 static void select_vgahw(const char *p)
1971 assert(vga_interface_type == VGA_NONE);
1972 for (t = 0; t < VGA_TYPE_MAX; t++) {
1973 VGAInterfaceInfo *ti = &vga_interfaces[t];
1974 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1975 if (!vga_interface_available(t)) {
1976 error_report("%s not available", ti->name);
1979 vga_interface_type = t;
1983 if (t == VGA_TYPE_MAX) {
1985 error_report("unknown vga type: %s", p);
1989 const char *nextopt;
1991 if (strstart(opts, ",retrace=", &nextopt)) {
1993 if (strstart(opts, "dumb", &nextopt))
1994 vga_retrace_method = VGA_RETRACE_DUMB;
1995 else if (strstart(opts, "precise", &nextopt))
1996 vga_retrace_method = VGA_RETRACE_PRECISE;
1997 else goto invalid_vga;
1998 } else goto invalid_vga;
2003 static void parse_display_qapi(const char *optarg)
2006 DisplayOptions *opts;
2009 v = qobject_input_visitor_new_str(optarg, "type", &err);
2011 error_report_err(err);
2015 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2016 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2018 qapi_free_DisplayOptions(opts);
2022 static void parse_display(const char *p)
2026 if (strstart(p, "sdl", &opts)) {
2028 * sdl DisplayType needs hand-crafted parser instead of
2029 * parse_display_qapi() due to some options not in
2030 * DisplayOptions, specifically:
2032 * Already deprecated.
2033 * - ctrl_grab + alt_grab
2034 * Not clear yet what happens to them long-term. Should
2035 * replaced by something better or deprecated and dropped.
2037 dpy.type = DISPLAY_TYPE_SDL;
2039 const char *nextopt;
2041 if (strstart(opts, ",frame=", &nextopt)) {
2042 g_printerr("The frame= sdl option is deprecated, and will be\n"
2043 "removed in a future release.\n");
2045 if (strstart(opts, "on", &nextopt)) {
2047 } else if (strstart(opts, "off", &nextopt)) {
2050 goto invalid_sdl_args;
2052 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2054 if (strstart(opts, "on", &nextopt)) {
2056 } else if (strstart(opts, "off", &nextopt)) {
2059 goto invalid_sdl_args;
2061 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2063 if (strstart(opts, "on", &nextopt)) {
2065 } else if (strstart(opts, "off", &nextopt)) {
2068 goto invalid_sdl_args;
2070 } else if (strstart(opts, ",window_close=", &nextopt)) {
2072 dpy.has_window_close = true;
2073 if (strstart(opts, "on", &nextopt)) {
2074 dpy.window_close = true;
2075 } else if (strstart(opts, "off", &nextopt)) {
2076 dpy.window_close = false;
2078 goto invalid_sdl_args;
2080 } else if (strstart(opts, ",gl=", &nextopt)) {
2083 if (strstart(opts, "on", &nextopt)) {
2084 dpy.gl = DISPLAYGL_MODE_ON;
2085 } else if (strstart(opts, "core", &nextopt)) {
2086 dpy.gl = DISPLAYGL_MODE_CORE;
2087 } else if (strstart(opts, "es", &nextopt)) {
2088 dpy.gl = DISPLAYGL_MODE_ES;
2089 } else if (strstart(opts, "off", &nextopt)) {
2090 dpy.gl = DISPLAYGL_MODE_OFF;
2092 goto invalid_sdl_args;
2096 error_report("invalid SDL option string");
2101 } else if (strstart(p, "vnc", &opts)) {
2103 * vnc isn't a (local) DisplayType but a protocol for remote
2107 vnc_parse(opts + 1, &error_fatal);
2109 error_report("VNC requires a display argument vnc=<display>");
2113 parse_display_qapi(p);
2117 char *qemu_find_file(int type, const char *name)
2123 /* Try the name as a straight path first */
2124 if (access(name, R_OK) == 0) {
2125 trace_load_file(name, name);
2126 return g_strdup(name);
2130 case QEMU_FILE_TYPE_BIOS:
2133 case QEMU_FILE_TYPE_KEYMAP:
2134 subdir = "keymaps/";
2140 for (i = 0; i < data_dir_idx; i++) {
2141 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2142 if (access(buf, R_OK) == 0) {
2143 trace_load_file(name, buf);
2151 static void qemu_add_data_dir(const char *path)
2158 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2161 for (i = 0; i < data_dir_idx; i++) {
2162 if (strcmp(data_dir[i], path) == 0) {
2163 return; /* duplicate */
2166 data_dir[data_dir_idx++] = g_strdup(path);
2169 static inline bool nonempty_str(const char *str)
2174 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2178 const char *name, *file, *str;
2179 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2181 if (fw_cfg == NULL) {
2182 error_report("fw_cfg device not available");
2185 name = qemu_opt_get(opts, "name");
2186 file = qemu_opt_get(opts, "file");
2187 str = qemu_opt_get(opts, "string");
2189 /* we need name and either a file or the content string */
2190 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2191 error_report("invalid argument(s)");
2194 if (nonempty_str(file) && nonempty_str(str)) {
2195 error_report("file and string are mutually exclusive");
2198 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2199 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2202 if (strncmp(name, "opt/", 4) != 0) {
2203 warn_report("externally provided fw_cfg item names "
2204 "should be prefixed with \"opt/\"");
2206 if (nonempty_str(str)) {
2207 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2208 buf = g_memdup(str, size);
2210 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2211 error_report("can't load %s", file);
2215 /* For legacy, keep user files in a specific global order. */
2216 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2217 fw_cfg_add_file(fw_cfg, name, buf, size);
2218 fw_cfg_reset_order_override(fw_cfg);
2222 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2224 return qdev_device_help(opts);
2227 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2232 dev = qdev_device_add(opts, &err);
2234 error_report_err(err);
2237 object_unref(OBJECT(dev));
2241 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2243 Error *local_err = NULL;
2245 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2247 error_report_err(local_err);
2255 #ifdef CONFIG_VIRTFS
2256 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2258 return qemu_fsdev_add(opts);
2262 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2265 const char *chardev;
2269 mode = qemu_opt_get(opts, "mode");
2273 if (strcmp(mode, "readline") == 0) {
2274 flags = MONITOR_USE_READLINE;
2275 } else if (strcmp(mode, "control") == 0) {
2276 flags = MONITOR_USE_CONTROL;
2278 error_report("unknown monitor mode \"%s\"", mode);
2282 if (qemu_opt_get_bool(opts, "pretty", 0))
2283 flags |= MONITOR_USE_PRETTY;
2285 /* OOB is off by default */
2286 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2287 flags |= MONITOR_USE_OOB;
2290 chardev = qemu_opt_get(opts, "chardev");
2291 chr = qemu_chr_find(chardev);
2293 error_report("chardev \"%s\" not found", chardev);
2297 monitor_init(chr, flags);
2301 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2303 static int monitor_device_index = 0;
2308 if (strstart(optarg, "chardev:", &p)) {
2309 snprintf(label, sizeof(label), "%s", p);
2311 snprintf(label, sizeof(label), "compat_monitor%d",
2312 monitor_device_index);
2313 opts = qemu_chr_parse_compat(label, optarg, true);
2315 error_report("parse error: %s", optarg);
2320 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2321 qemu_opt_set(opts, "mode", mode, &error_abort);
2322 qemu_opt_set(opts, "chardev", label, &error_abort);
2323 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2324 monitor_device_index++;
2327 struct device_config {
2329 DEV_USB, /* -usbdevice */
2331 DEV_SERIAL, /* -serial */
2332 DEV_PARALLEL, /* -parallel */
2333 DEV_VIRTCON, /* -virtioconsole */
2334 DEV_DEBUGCON, /* -debugcon */
2335 DEV_GDB, /* -gdb, -s */
2336 DEV_SCLP, /* s390 sclp */
2338 const char *cmdline;
2340 QTAILQ_ENTRY(device_config) next;
2343 static QTAILQ_HEAD(, device_config) device_configs =
2344 QTAILQ_HEAD_INITIALIZER(device_configs);
2346 static void add_device_config(int type, const char *cmdline)
2348 struct device_config *conf;
2350 conf = g_malloc0(sizeof(*conf));
2352 conf->cmdline = cmdline;
2353 loc_save(&conf->loc);
2354 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2357 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2359 struct device_config *conf;
2362 QTAILQ_FOREACH(conf, &device_configs, next) {
2363 if (conf->type != type)
2365 loc_push_restore(&conf->loc);
2366 rc = func(conf->cmdline);
2367 loc_pop(&conf->loc);
2375 static int serial_parse(const char *devname)
2377 int index = num_serial_hds;
2380 if (strcmp(devname, "none") == 0)
2382 snprintf(label, sizeof(label), "serial%d", index);
2383 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2385 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2386 if (!serial_hds[index]) {
2387 error_report("could not connect serial device"
2388 " to character backend '%s'", devname);
2395 Chardev *serial_hd(int i)
2398 if (i < num_serial_hds) {
2399 return serial_hds[i];
2404 int serial_max_hds(void)
2406 return num_serial_hds;
2409 static int parallel_parse(const char *devname)
2411 static int index = 0;
2414 if (strcmp(devname, "none") == 0)
2416 if (index == MAX_PARALLEL_PORTS) {
2417 error_report("too many parallel ports");
2420 snprintf(label, sizeof(label), "parallel%d", index);
2421 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2422 if (!parallel_hds[index]) {
2423 error_report("could not connect parallel device"
2424 " to character backend '%s'", devname);
2431 static int virtcon_parse(const char *devname)
2433 QemuOptsList *device = qemu_find_opts("device");
2434 static int index = 0;
2436 QemuOpts *bus_opts, *dev_opts;
2438 if (strcmp(devname, "none") == 0)
2440 if (index == MAX_VIRTIO_CONSOLES) {
2441 error_report("too many virtio consoles");
2445 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2446 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2448 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2449 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2451 snprintf(label, sizeof(label), "virtcon%d", index);
2452 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2453 if (!virtcon_hds[index]) {
2454 error_report("could not connect virtio console"
2455 " to character backend '%s'", devname);
2458 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2464 static int debugcon_parse(const char *devname)
2468 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2471 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2473 error_report("already have a debugcon device");
2476 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2477 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2481 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2483 const MachineClass *mc1 = a, *mc2 = b;
2486 if (mc1->family == NULL) {
2487 if (mc2->family == NULL) {
2488 /* Compare standalone machine types against each other; they sort
2489 * in increasing order.
2491 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2492 object_class_get_name(OBJECT_CLASS(mc2)));
2495 /* Standalone machine types sort after families. */
2499 if (mc2->family == NULL) {
2500 /* Families sort before standalone machine types. */
2504 /* Families sort between each other alphabetically increasingly. */
2505 res = strcmp(mc1->family, mc2->family);
2510 /* Within the same family, machine types sort in decreasing order. */
2511 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2512 object_class_get_name(OBJECT_CLASS(mc1)));
2515 static MachineClass *machine_parse(const char *name)
2517 MachineClass *mc = NULL;
2518 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2521 mc = find_machine(name);
2524 g_slist_free(machines);
2527 if (name && !is_help_option(name)) {
2528 error_report("unsupported machine type");
2529 error_printf("Use -machine help to list supported machines\n");
2531 printf("Supported machines are:\n");
2532 machines = g_slist_sort(machines, machine_class_cmp);
2533 for (el = machines; el; el = el->next) {
2534 MachineClass *mc = el->data;
2536 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2538 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2539 mc->is_default ? " (default)" : "",
2540 mc->deprecation_reason ? " (deprecated)" : "");
2544 g_slist_free(machines);
2545 exit(!name || !is_help_option(name));
2548 void qemu_add_exit_notifier(Notifier *notify)
2550 notifier_list_add(&exit_notifiers, notify);
2553 void qemu_remove_exit_notifier(Notifier *notify)
2555 notifier_remove(notify);
2558 static void qemu_run_exit_notifiers(void)
2560 notifier_list_notify(&exit_notifiers, NULL);
2563 static const char *pid_file;
2564 static Notifier qemu_unlink_pidfile_notifier;
2566 static void qemu_unlink_pidfile(Notifier *n, void *data)
2573 bool machine_init_done;
2575 void qemu_add_machine_init_done_notifier(Notifier *notify)
2577 notifier_list_add(&machine_init_done_notifiers, notify);
2578 if (machine_init_done) {
2579 notify->notify(notify, NULL);
2583 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2585 notifier_remove(notify);
2588 static void qemu_run_machine_init_done_notifiers(void)
2590 machine_init_done = true;
2591 notifier_list_notify(&machine_init_done_notifiers, NULL);
2594 static const QEMUOption *lookup_opt(int argc, char **argv,
2595 const char **poptarg, int *poptind)
2597 const QEMUOption *popt;
2598 int optind = *poptind;
2599 char *r = argv[optind];
2602 loc_set_cmdline(argv, optind, 1);
2604 /* Treat --foo the same as -foo. */
2607 popt = qemu_options;
2610 error_report("invalid option");
2613 if (!strcmp(popt->name, r + 1))
2617 if (popt->flags & HAS_ARG) {
2618 if (optind >= argc) {
2619 error_report("requires an argument");
2622 optarg = argv[optind++];
2623 loc_set_cmdline(argv, optind - 2, 2);
2634 static MachineClass *select_machine(void)
2636 MachineClass *machine_class = find_default_machine();
2641 loc_push_none(&loc);
2643 opts = qemu_get_machine_opts();
2644 qemu_opts_loc_restore(opts);
2646 optarg = qemu_opt_get(opts, "type");
2648 machine_class = machine_parse(optarg);
2651 if (!machine_class) {
2652 error_report("No machine specified, and there is no default");
2653 error_printf("Use -machine help to list supported machines\n");
2658 return machine_class;
2661 static int machine_set_property(void *opaque,
2662 const char *name, const char *value,
2665 Object *obj = OBJECT(opaque);
2666 Error *local_err = NULL;
2669 if (strcmp(name, "type") == 0) {
2673 qom_name = g_strdup(name);
2674 for (p = qom_name; *p; p++) {
2680 object_property_parse(obj, value, qom_name, &local_err);
2684 error_report_err(local_err);
2693 * Initial object creation happens before all other
2694 * QEMU data types are created. The majority of objects
2695 * can be created at this point. The rng-egd object
2696 * cannot be created here, as it depends on the chardev
2699 static bool object_create_initial(const char *type)
2701 if (g_str_equal(type, "rng-egd") ||
2702 g_str_has_prefix(type, "pr-manager-")) {
2706 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2707 if (g_str_equal(type, "cryptodev-vhost-user")) {
2713 * return false for concrete netfilters since
2714 * they depend on netdevs already existing
2716 if (g_str_equal(type, "filter-buffer") ||
2717 g_str_equal(type, "filter-dump") ||
2718 g_str_equal(type, "filter-mirror") ||
2719 g_str_equal(type, "filter-redirector") ||
2720 g_str_equal(type, "colo-compare") ||
2721 g_str_equal(type, "filter-rewriter") ||
2722 g_str_equal(type, "filter-replay")) {
2726 /* Memory allocation by backends needs to be done
2727 * after configure_accelerator() (due to the tcg_enabled()
2728 * checks at memory_region_init_*()).
2730 * Also, allocation of large amounts of memory may delay
2731 * chardev initialization for too long, and trigger timeouts
2732 * on software that waits for a monitor socket to be created
2735 if (g_str_has_prefix(type, "memory-backend-")) {
2744 * The remainder of object creation happens after the
2745 * creation of chardev, fsdev, net clients and device data types.
2747 static bool object_create_delayed(const char *type)
2749 return !object_create_initial(type);
2753 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2757 const char *mem_str;
2758 const ram_addr_t default_ram_size = mc->default_ram_size;
2759 QemuOpts *opts = qemu_find_opts_singleton("memory");
2762 loc_push_none(&loc);
2763 qemu_opts_loc_restore(opts);
2766 mem_str = qemu_opt_get(opts, "size");
2769 error_report("missing 'size' option value");
2773 sz = qemu_opt_get_size(opts, "size", ram_size);
2775 /* Fix up legacy suffix-less format */
2776 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2777 uint64_t overflow_check = sz;
2780 if (sz / MiB != overflow_check) {
2781 error_report("too large 'size' option value");
2787 /* backward compatibility behaviour for case "-m 0" */
2789 sz = default_ram_size;
2792 sz = QEMU_ALIGN_UP(sz, 8192);
2794 if (ram_size != sz) {
2795 error_report("ram size too large");
2799 /* store value for the future use */
2800 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2801 *maxram_size = ram_size;
2803 if (qemu_opt_get(opts, "maxmem")) {
2806 sz = qemu_opt_get_size(opts, "maxmem", 0);
2807 slots = qemu_opt_get_number(opts, "slots", 0);
2808 if (sz < ram_size) {
2809 error_report("invalid value of -m option maxmem: "
2810 "maximum memory size (0x%" PRIx64 ") must be at least "
2811 "the initial memory size (0x" RAM_ADDR_FMT ")",
2814 } else if (slots && sz == ram_size) {
2815 error_report("invalid value of -m option maxmem: "
2816 "memory slots were specified but maximum memory size "
2817 "(0x%" PRIx64 ") is equal to the initial memory size "
2818 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2824 } else if (qemu_opt_get(opts, "slots")) {
2825 error_report("invalid -m option value: missing 'maxmem' option");
2832 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2836 g = g_malloc0(sizeof(*g));
2837 g->driver = qemu_opt_get(opts, "driver");
2838 g->property = qemu_opt_get(opts, "property");
2839 g->value = qemu_opt_get(opts, "value");
2840 g->user_provided = true;
2841 g->errp = &error_fatal;
2842 qdev_prop_register_global(g);
2846 static int qemu_read_default_config_file(void)
2850 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2851 if (ret < 0 && ret != -ENOENT) {
2858 static void user_register_global_props(void)
2860 qemu_opts_foreach(qemu_find_opts("global"),
2861 global_init_func, NULL, NULL);
2865 * Note: we should see that these properties are actually having a
2866 * priority: accel < machine < user. This means e.g. when user
2867 * specifies something in "-global", it'll always be used with highest
2868 * priority than either machine/accelerator compat properties.
2870 static void register_global_properties(MachineState *ms)
2872 accel_register_compat_props(ms->accelerator);
2873 machine_register_compat_props(ms);
2874 user_register_global_props();
2877 int main(int argc, char **argv, char **envp)
2880 int snapshot, linux_boot;
2881 const char *initrd_filename;
2882 const char *kernel_filename, *kernel_cmdline;
2883 const char *boot_order = NULL;
2884 const char *boot_once = NULL;
2886 QemuOpts *opts, *machine_opts;
2887 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2888 QemuOptsList *olist;
2891 const char *loadvm = NULL;
2892 MachineClass *machine_class;
2893 const char *cpu_model;
2894 const char *vga_model = NULL;
2895 const char *qtest_chrdev = NULL;
2896 const char *qtest_log = NULL;
2897 const char *incoming = NULL;
2898 bool userconfig = true;
2899 bool nographic = false;
2900 int display_remote = 0;
2901 const char *log_mask = NULL;
2902 const char *log_file = NULL;
2903 char *trace_file = NULL;
2904 ram_addr_t maxram_size;
2905 uint64_t ram_slots = 0;
2906 FILE *vmstate_dump_file = NULL;
2907 Error *main_loop_err = NULL;
2909 bool list_data_dirs = false;
2911 typedef struct BlockdevOptions_queue {
2912 BlockdevOptions *bdo;
2914 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2915 } BlockdevOptions_queue;
2916 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2917 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2919 module_call_init(MODULE_INIT_TRACE);
2921 qemu_init_cpu_list();
2922 qemu_init_cpu_loop();
2924 qemu_mutex_lock_iothread();
2926 atexit(qemu_run_exit_notifiers);
2927 error_set_progname(argv[0]);
2928 qemu_init_exec_dir(argv[0]);
2930 module_call_init(MODULE_INIT_QOM);
2932 qemu_add_opts(&qemu_drive_opts);
2933 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2934 qemu_add_drive_opts(&qemu_common_drive_opts);
2935 qemu_add_drive_opts(&qemu_drive_opts);
2936 qemu_add_drive_opts(&bdrv_runtime_opts);
2937 qemu_add_opts(&qemu_chardev_opts);
2938 qemu_add_opts(&qemu_device_opts);
2939 qemu_add_opts(&qemu_netdev_opts);
2940 qemu_add_opts(&qemu_nic_opts);
2941 qemu_add_opts(&qemu_net_opts);
2942 qemu_add_opts(&qemu_rtc_opts);
2943 qemu_add_opts(&qemu_global_opts);
2944 qemu_add_opts(&qemu_mon_opts);
2945 qemu_add_opts(&qemu_trace_opts);
2946 qemu_add_opts(&qemu_option_rom_opts);
2947 qemu_add_opts(&qemu_machine_opts);
2948 qemu_add_opts(&qemu_accel_opts);
2949 qemu_add_opts(&qemu_mem_opts);
2950 qemu_add_opts(&qemu_smp_opts);
2951 qemu_add_opts(&qemu_boot_opts);
2952 qemu_add_opts(&qemu_add_fd_opts);
2953 qemu_add_opts(&qemu_object_opts);
2954 qemu_add_opts(&qemu_tpmdev_opts);
2955 qemu_add_opts(&qemu_realtime_opts);
2956 qemu_add_opts(&qemu_overcommit_opts);
2957 qemu_add_opts(&qemu_msg_opts);
2958 qemu_add_opts(&qemu_name_opts);
2959 qemu_add_opts(&qemu_numa_opts);
2960 qemu_add_opts(&qemu_icount_opts);
2961 qemu_add_opts(&qemu_semihosting_config_opts);
2962 qemu_add_opts(&qemu_fw_cfg_opts);
2963 module_call_init(MODULE_INIT_OPTS);
2966 postcopy_infrastructure_init();
2967 monitor_init_globals();
2969 if (qcrypto_init(&err) < 0) {
2970 error_reportf_err(err, "cannot initialize crypto: ");
2973 rtc_clock = QEMU_CLOCK_HOST;
2975 QLIST_INIT (&vm_change_state_head);
2976 os_setup_early_signal_handling();
2983 bdrv_init_with_whitelist();
2987 /* first pass of option parsing */
2989 while (optind < argc) {
2990 if (argv[optind][0] != '-') {
2994 const QEMUOption *popt;
2996 popt = lookup_opt(argc, argv, &optarg, &optind);
2997 switch (popt->index) {
2998 case QEMU_OPTION_nouserconfig:
3006 if (qemu_read_default_config_file() < 0) {
3011 /* second pass of option parsing */
3016 if (argv[optind][0] != '-') {
3017 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3019 const QEMUOption *popt;
3021 popt = lookup_opt(argc, argv, &optarg, &optind);
3022 if (!(popt->arch_mask & arch_type)) {
3023 error_report("Option not supported for this target");
3026 switch(popt->index) {
3027 case QEMU_OPTION_cpu:
3028 /* hw initialization will check this */
3031 case QEMU_OPTION_hda:
3032 case QEMU_OPTION_hdb:
3033 case QEMU_OPTION_hdc:
3034 case QEMU_OPTION_hdd:
3035 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3038 case QEMU_OPTION_blockdev:
3041 BlockdevOptions_queue *bdo;
3043 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3045 error_report_err(err);
3049 bdo = g_new(BlockdevOptions_queue, 1);
3050 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3053 loc_save(&bdo->loc);
3054 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3057 case QEMU_OPTION_drive:
3058 if (drive_def(optarg) == NULL) {
3062 case QEMU_OPTION_set:
3063 if (qemu_set_option(optarg) != 0)
3066 case QEMU_OPTION_global:
3067 if (qemu_global_option(optarg) != 0)
3070 case QEMU_OPTION_mtdblock:
3071 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3073 case QEMU_OPTION_sd:
3074 drive_add(IF_SD, -1, optarg, SD_OPTS);
3076 case QEMU_OPTION_pflash:
3077 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3079 case QEMU_OPTION_snapshot:
3082 case QEMU_OPTION_numa:
3083 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3089 case QEMU_OPTION_display:
3090 parse_display(optarg);
3092 case QEMU_OPTION_nographic:
3093 olist = qemu_find_opts("machine");
3094 qemu_opts_parse_noisily(olist, "graphics=off", false);
3096 dpy.type = DISPLAY_TYPE_NONE;
3098 case QEMU_OPTION_curses:
3099 #ifdef CONFIG_CURSES
3100 dpy.type = DISPLAY_TYPE_CURSES;
3102 error_report("curses support is disabled");
3106 case QEMU_OPTION_portrait:
3107 graphic_rotate = 90;
3109 case QEMU_OPTION_rotate:
3110 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3111 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3112 graphic_rotate != 180 && graphic_rotate != 270) {
3113 error_report("only 90, 180, 270 deg rotation is available");
3117 case QEMU_OPTION_kernel:
3118 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3121 case QEMU_OPTION_initrd:
3122 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3125 case QEMU_OPTION_append:
3126 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3129 case QEMU_OPTION_dtb:
3130 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3133 case QEMU_OPTION_cdrom:
3134 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3136 case QEMU_OPTION_boot:
3137 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3143 case QEMU_OPTION_fda:
3144 case QEMU_OPTION_fdb:
3145 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3148 case QEMU_OPTION_no_fd_bootchk:
3151 case QEMU_OPTION_netdev:
3153 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3157 case QEMU_OPTION_nic:
3159 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3163 case QEMU_OPTION_net:
3165 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3169 #ifdef CONFIG_LIBISCSI
3170 case QEMU_OPTION_iscsi:
3171 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3178 case QEMU_OPTION_bt:
3179 add_device_config(DEV_BT, optarg);
3181 case QEMU_OPTION_audio_help:
3185 case QEMU_OPTION_soundhw:
3186 select_soundhw (optarg);
3191 case QEMU_OPTION_version:
3196 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3203 case QEMU_OPTION_tpmdev:
3204 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3209 case QEMU_OPTION_mempath:
3212 case QEMU_OPTION_mem_prealloc:
3221 case QEMU_OPTION_DFILTER:
3222 qemu_set_dfilter_ranges(optarg, &error_fatal);
3225 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3227 case QEMU_OPTION_gdb:
3228 add_device_config(DEV_GDB, optarg);
3231 if (is_help_option(optarg)) {
3232 list_data_dirs = true;
3234 qemu_add_data_dir(optarg);
3237 case QEMU_OPTION_bios:
3238 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3241 case QEMU_OPTION_singlestep:
3248 keyboard_layout = optarg;
3250 case QEMU_OPTION_vga:
3259 w = strtol(p, (char **)&p, 10);
3262 error_report("invalid resolution or depth");
3268 h = strtol(p, (char **)&p, 10);
3273 depth = strtol(p, (char **)&p, 10);
3274 if (depth != 8 && depth != 15 && depth != 16 &&
3275 depth != 24 && depth != 32)
3277 } else if (*p == '\0') {
3278 depth = graphic_depth;
3285 graphic_depth = depth;
3288 case QEMU_OPTION_echr:
3291 term_escape_char = strtol(optarg, &r, 0);
3293 printf("Bad argument to echr\n");
3296 case QEMU_OPTION_monitor:
3297 default_monitor = 0;
3298 if (strncmp(optarg, "none", 4)) {
3299 monitor_parse(optarg, "readline", false);
3302 case QEMU_OPTION_qmp:
3303 monitor_parse(optarg, "control", false);
3304 default_monitor = 0;
3306 case QEMU_OPTION_qmp_pretty:
3307 monitor_parse(optarg, "control", true);
3308 default_monitor = 0;
3310 case QEMU_OPTION_mon:
3311 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3316 default_monitor = 0;
3318 case QEMU_OPTION_chardev:
3319 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3325 case QEMU_OPTION_fsdev:
3326 olist = qemu_find_opts("fsdev");
3328 error_report("fsdev support is disabled");
3331 opts = qemu_opts_parse_noisily(olist, optarg, true);
3336 case QEMU_OPTION_virtfs: {
3339 const char *writeout, *sock_fd, *socket, *path, *security_model;
3341 olist = qemu_find_opts("virtfs");
3343 error_report("virtfs support is disabled");
3346 opts = qemu_opts_parse_noisily(olist, optarg, true);
3351 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3352 qemu_opt_get(opts, "mount_tag") == NULL) {
3353 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3356 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3357 qemu_opts_id(opts) ?:
3358 qemu_opt_get(opts, "mount_tag"),
3361 error_report("duplicate or invalid fsdev id: %s",
3362 qemu_opt_get(opts, "mount_tag"));
3366 writeout = qemu_opt_get(opts, "writeout");
3368 #ifdef CONFIG_SYNC_FILE_RANGE
3369 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3371 error_report("writeout=immediate not supported "
3372 "on this platform");
3376 qemu_opt_set(fsdev, "fsdriver",
3377 qemu_opt_get(opts, "fsdriver"), &error_abort);
3378 path = qemu_opt_get(opts, "path");
3380 qemu_opt_set(fsdev, "path", path, &error_abort);
3382 security_model = qemu_opt_get(opts, "security_model");
3383 if (security_model) {
3384 qemu_opt_set(fsdev, "security_model", security_model,
3387 socket = qemu_opt_get(opts, "socket");
3389 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3391 sock_fd = qemu_opt_get(opts, "sock_fd");
3393 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3396 qemu_opt_set_bool(fsdev, "readonly",
3397 qemu_opt_get_bool(opts, "readonly", 0),
3399 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3401 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3402 qemu_opt_set(device, "fsdev",
3403 qemu_opts_id(fsdev), &error_abort);
3404 qemu_opt_set(device, "mount_tag",
3405 qemu_opt_get(opts, "mount_tag"), &error_abort);
3408 case QEMU_OPTION_virtfs_synth: {
3412 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3415 error_report("duplicate option: %s", "virtfs_synth");
3418 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3420 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3422 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3423 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3424 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3427 case QEMU_OPTION_serial:
3428 add_device_config(DEV_SERIAL, optarg);
3430 if (strncmp(optarg, "mon:", 4) == 0) {
3431 default_monitor = 0;
3434 case QEMU_OPTION_watchdog:
3436 error_report("only one watchdog option may be given");
3441 case QEMU_OPTION_watchdog_action:
3442 if (select_watchdog_action(optarg) == -1) {
3443 error_report("unknown -watchdog-action parameter");
3447 case QEMU_OPTION_virtiocon:
3448 warn_report("This option is deprecated, "
3449 "use '-device virtconsole' instead");
3450 add_device_config(DEV_VIRTCON, optarg);
3451 default_virtcon = 0;
3452 if (strncmp(optarg, "mon:", 4) == 0) {
3453 default_monitor = 0;
3456 case QEMU_OPTION_parallel:
3457 add_device_config(DEV_PARALLEL, optarg);
3458 default_parallel = 0;
3459 if (strncmp(optarg, "mon:", 4) == 0) {
3460 default_monitor = 0;
3463 case QEMU_OPTION_debugcon:
3464 add_device_config(DEV_DEBUGCON, optarg);
3466 case QEMU_OPTION_loadvm:
3469 case QEMU_OPTION_full_screen:
3470 dpy.has_full_screen = true;
3471 dpy.full_screen = true;
3473 case QEMU_OPTION_no_frame:
3474 g_printerr("The -no-frame switch is deprecated, and will be\n"
3475 "removed in a future release.\n");
3478 case QEMU_OPTION_alt_grab:
3481 case QEMU_OPTION_ctrl_grab:
3484 case QEMU_OPTION_no_quit:
3485 dpy.has_window_close = true;
3486 dpy.window_close = false;
3488 case QEMU_OPTION_sdl:
3490 dpy.type = DISPLAY_TYPE_SDL;
3493 error_report("SDL support is disabled");
3496 case QEMU_OPTION_pidfile:
3499 case QEMU_OPTION_win2k_hack:
3500 win2k_install_hack = 1;
3502 case QEMU_OPTION_acpitable:
3503 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3508 acpi_table_add(opts, &error_fatal);
3510 case QEMU_OPTION_smbios:
3511 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3516 smbios_entry_add(opts, &error_fatal);
3518 case QEMU_OPTION_fwcfg:
3519 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3525 case QEMU_OPTION_preconfig:
3526 preconfig_exit_requested = false;
3528 case QEMU_OPTION_enable_kvm:
3529 olist = qemu_find_opts("machine");
3530 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3532 case QEMU_OPTION_enable_hax:
3533 warn_report("Option is deprecated, use '-accel hax' instead");
3534 olist = qemu_find_opts("machine");
3535 qemu_opts_parse_noisily(olist, "accel=hax", false);
3538 case QEMU_OPTION_machine:
3539 olist = qemu_find_opts("machine");
3540 opts = qemu_opts_parse_noisily(olist, optarg, true);
3545 case QEMU_OPTION_no_kvm:
3546 olist = qemu_find_opts("machine");
3547 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3549 case QEMU_OPTION_accel:
3550 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3552 optarg = qemu_opt_get(accel_opts, "accel");
3553 if (!optarg || is_help_option(optarg)) {
3554 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3557 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3558 false, &error_abort);
3559 qemu_opt_set(opts, "accel", optarg, &error_abort);
3561 case QEMU_OPTION_usb:
3562 olist = qemu_find_opts("machine");
3563 qemu_opts_parse_noisily(olist, "usb=on", false);
3565 case QEMU_OPTION_usbdevice:
3566 error_report("'-usbdevice' is deprecated, please use "
3567 "'-device usb-...' instead");
3568 olist = qemu_find_opts("machine");
3569 qemu_opts_parse_noisily(olist, "usb=on", false);
3570 add_device_config(DEV_USB, optarg);
3572 case QEMU_OPTION_device:
3573 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3578 case QEMU_OPTION_smp:
3579 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3584 case QEMU_OPTION_vnc:
3585 vnc_parse(optarg, &error_fatal);
3587 case QEMU_OPTION_no_acpi:
3590 case QEMU_OPTION_no_hpet:
3593 case QEMU_OPTION_no_reboot:
3596 case QEMU_OPTION_no_shutdown:
3599 case QEMU_OPTION_show_cursor:
3602 case QEMU_OPTION_uuid:
3603 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3604 error_report("failed to parse UUID string: wrong format");
3607 qemu_uuid_set = true;
3609 case QEMU_OPTION_option_rom:
3610 if (nb_option_roms >= MAX_OPTION_ROMS) {
3611 error_report("too many option ROMs");
3614 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3619 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3620 option_rom[nb_option_roms].bootindex =
3621 qemu_opt_get_number(opts, "bootindex", -1);
3622 if (!option_rom[nb_option_roms].name) {
3623 error_report("Option ROM file is not specified");
3628 case QEMU_OPTION_semihosting:
3629 semihosting.enabled = true;
3630 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3632 case QEMU_OPTION_semihosting_config:
3633 semihosting.enabled = true;
3634 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3637 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3639 const char *target = qemu_opt_get(opts, "target");
3640 if (target != NULL) {
3641 if (strcmp("native", target) == 0) {
3642 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3643 } else if (strcmp("gdb", target) == 0) {
3644 semihosting.target = SEMIHOSTING_TARGET_GDB;
3645 } else if (strcmp("auto", target) == 0) {
3646 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3648 error_report("unsupported semihosting-config %s",
3653 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3655 /* Set semihosting argument count and vector */
3656 qemu_opt_foreach(opts, add_semihosting_arg,
3657 &semihosting, NULL);
3659 error_report("unsupported semihosting-config %s", optarg);
3663 case QEMU_OPTION_name:
3664 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3670 case QEMU_OPTION_prom_env:
3671 if (nb_prom_envs >= MAX_PROM_ENVS) {
3672 error_report("too many prom variables");
3675 prom_envs[nb_prom_envs] = optarg;
3678 case QEMU_OPTION_old_param:
3681 case QEMU_OPTION_clock:
3682 /* Clock options no longer exist. Keep this option for
3683 * backward compatibility.
3685 warn_report("This option is ignored and will be removed soon");
3687 case QEMU_OPTION_rtc:
3688 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3693 configure_rtc(opts);
3695 case QEMU_OPTION_tb_size:
3697 error_report("TCG is disabled");
3700 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3701 error_report("Invalid argument to -tb-size");
3705 case QEMU_OPTION_icount:
3706 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3712 case QEMU_OPTION_incoming:
3714 runstate_set(RUN_STATE_INMIGRATE);
3718 case QEMU_OPTION_only_migratable:
3720 * TODO: we can remove this option one day, and we
3723 * "-global migration.only-migratable=true"
3725 qemu_global_option("migration.only-migratable=true");
3727 case QEMU_OPTION_nodefaults:
3730 case QEMU_OPTION_xen_domid:
3731 if (!(xen_available())) {
3732 error_report("Option not supported for this target");
3735 xen_domid = atoi(optarg);
3737 case QEMU_OPTION_xen_create:
3738 if (!(xen_available())) {
3739 error_report("Option not supported for this target");
3742 xen_mode = XEN_CREATE;
3744 case QEMU_OPTION_xen_attach:
3745 if (!(xen_available())) {
3746 error_report("Option not supported for this target");
3749 xen_mode = XEN_ATTACH;
3751 case QEMU_OPTION_xen_domid_restrict:
3752 if (!(xen_available())) {
3753 error_report("Option not supported for this target");
3756 xen_domid_restrict = true;
3758 case QEMU_OPTION_trace:
3760 trace_file = trace_opt_parse(optarg);
3762 case QEMU_OPTION_readconfig:
3764 int ret = qemu_read_config_file(optarg);
3766 error_report("read config %s: %s", optarg,
3772 case QEMU_OPTION_spice:
3773 olist = qemu_find_opts("spice");
3775 error_report("spice support is disabled");
3778 opts = qemu_opts_parse_noisily(olist, optarg, false);
3784 case QEMU_OPTION_writeconfig:
3787 if (strcmp(optarg, "-") == 0) {
3790 fp = fopen(optarg, "w");
3792 error_report("open %s: %s", optarg,
3797 qemu_config_write(fp);
3803 case QEMU_OPTION_qtest:
3804 qtest_chrdev = optarg;
3806 case QEMU_OPTION_qtest_log:
3809 case QEMU_OPTION_sandbox:
3810 #ifdef CONFIG_SECCOMP
3811 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3817 error_report("-sandbox support is not enabled "
3818 "in this QEMU binary");
3822 case QEMU_OPTION_add_fd:
3824 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3830 error_report("File descriptor passing is disabled on this "
3835 case QEMU_OPTION_object:
3836 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3842 case QEMU_OPTION_realtime:
3843 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3848 /* Don't override the -overcommit option if set */
3849 enable_mlock = enable_mlock ||
3850 qemu_opt_get_bool(opts, "mlock", true);
3852 case QEMU_OPTION_overcommit:
3853 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3858 /* Don't override the -realtime option if set */
3859 enable_mlock = enable_mlock ||
3860 qemu_opt_get_bool(opts, "mem-lock", false);
3861 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3863 case QEMU_OPTION_msg:
3864 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3869 configure_msg(opts);
3871 case QEMU_OPTION_dump_vmstate:
3872 if (vmstate_dump_file) {
3873 error_report("only one '-dump-vmstate' "
3874 "option may be given");
3877 vmstate_dump_file = fopen(optarg, "w");
3878 if (vmstate_dump_file == NULL) {
3879 error_report("open %s: %s", optarg, strerror(errno));
3883 case QEMU_OPTION_enable_sync_profile:
3886 case QEMU_OPTION_nouserconfig:
3887 /* Nothing to be parsed here. Especially, do not error out below. */
3890 if (os_parse_cmd_args(popt->index, optarg)) {
3891 error_report("Option not supported in this build");
3898 * Clear error location left behind by the loop.
3899 * Best done right after the loop. Do not insert code here!
3903 replay_configure(icount_opts);
3905 if (incoming && !preconfig_exit_requested) {
3906 error_report("'preconfig' and 'incoming' options are "
3907 "mutually exclusive");
3911 machine_class = select_machine();
3913 set_memory_options(&ram_slots, &maxram_size, machine_class);
3916 rcu_disable_atfork();
3918 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3919 error_reportf_err(err, "cannot create PID file: ");
3923 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3924 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3926 if (qemu_init_main_loop(&main_loop_err)) {
3927 error_report_err(main_loop_err);
3931 #ifdef CONFIG_SECCOMP
3932 olist = qemu_find_opts_err("sandbox", NULL);
3933 if (olist && qemu_opts_foreach(olist, parse_sandbox, NULL, NULL)) {
3938 if (qemu_opts_foreach(qemu_find_opts("name"),
3939 parse_name, NULL, NULL)) {
3944 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3945 parse_add_fd, NULL, NULL)) {
3949 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3950 cleanup_add_fd, NULL, NULL)) {
3955 current_machine = MACHINE(object_new(object_class_get_name(
3956 OBJECT_CLASS(machine_class))));
3957 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3960 object_property_add_child(object_get_root(), "machine",
3961 OBJECT(current_machine), &error_abort);
3963 if (machine_class->minimum_page_bits) {
3964 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3965 /* This would be a board error: specifying a minimum smaller than
3966 * a target's compile-time fixed setting.
3968 g_assert_not_reached();
3972 cpu_exec_init_all();
3974 if (machine_class->hw_version) {
3975 qemu_set_hw_version(machine_class->hw_version);
3978 if (cpu_model && is_help_option(cpu_model)) {
3979 list_cpus(stdout, &fprintf, cpu_model);
3983 if (!trace_init_backends()) {
3986 trace_init_file(trace_file);
3988 /* Open the logfile at this point and set the log mask if necessary.
3991 qemu_set_log_filename(log_file, &error_fatal);
3996 mask = qemu_str_to_log_mask(log_mask);
3998 qemu_print_log_usage(stdout);
4006 /* add configured firmware directories */
4007 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4008 for (i = 0; dirs[i] != NULL; i++) {
4009 qemu_add_data_dir(dirs[i]);
4013 /* try to find datadir relative to the executable path */
4014 dir = os_find_datadir();
4015 qemu_add_data_dir(dir);
4018 /* add the datadir specified when building */
4019 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4021 /* -L help lists the data directories and exits. */
4022 if (list_data_dirs) {
4023 for (i = 0; i < data_dir_idx; i++) {
4024 printf("%s\n", data_dir[i]);
4029 /* machine_class: default to UP */
4030 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4031 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4032 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4034 /* default to machine_class->default_cpus */
4035 smp_cpus = machine_class->default_cpus;
4036 max_cpus = machine_class->default_cpus;
4038 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4040 /* sanity-check smp_cpus and max_cpus against machine_class */
4041 if (smp_cpus < machine_class->min_cpus) {
4042 error_report("Invalid SMP CPUs %d. The min CPUs "
4043 "supported by machine '%s' is %d", smp_cpus,
4044 machine_class->name, machine_class->min_cpus);
4047 if (max_cpus > machine_class->max_cpus) {
4048 error_report("Invalid SMP CPUs %d. The max CPUs "
4049 "supported by machine '%s' is %d", max_cpus,
4050 machine_class->name, machine_class->max_cpus);
4055 * Get the default machine options from the machine if it is not already
4056 * specified either by the configuration file or by the command line.
4058 if (machine_class->default_machine_opts) {
4059 qemu_opts_set_defaults(qemu_find_opts("machine"),
4060 machine_class->default_machine_opts, 0);
4063 qemu_opts_foreach(qemu_find_opts("device"),
4064 default_driver_check, NULL, NULL);
4065 qemu_opts_foreach(qemu_find_opts("global"),
4066 default_driver_check, NULL, NULL);
4068 if (!vga_model && !default_vga) {
4069 vga_interface_type = VGA_DEVICE;
4071 if (!has_defaults || machine_class->no_serial) {
4074 if (!has_defaults || machine_class->no_parallel) {
4075 default_parallel = 0;
4077 if (!has_defaults || !machine_class->use_virtcon) {
4078 default_virtcon = 0;
4080 if (!has_defaults || machine_class->no_floppy) {
4083 if (!has_defaults || machine_class->no_cdrom) {
4086 if (!has_defaults || machine_class->no_sdcard) {
4089 if (!has_defaults) {
4090 default_monitor = 0;
4095 if (is_daemonized()) {
4096 if (!preconfig_exit_requested) {
4097 error_report("'preconfig' and 'daemonize' options are "
4098 "mutually exclusive");
4102 /* According to documentation and historically, -nographic redirects
4103 * serial port, parallel port and monitor to stdio, which does not work
4104 * with -daemonize. We can redirect these to null instead, but since
4105 * -nographic is legacy, let's just error out.
4106 * We disallow -nographic only if all other ports are not redirected
4107 * explicitly, to not break existing legacy setups which uses
4108 * -nographic _and_ redirects all ports explicitly - this is valid
4109 * usage, -nographic is just a no-op in this case.
4112 && (default_parallel || default_serial
4113 || default_monitor || default_virtcon)) {
4114 error_report("-nographic cannot be used with -daemonize");
4117 #ifdef CONFIG_CURSES
4118 if (dpy.type == DISPLAY_TYPE_CURSES) {
4119 error_report("curses display cannot be used with -daemonize");
4126 if (default_parallel)
4127 add_device_config(DEV_PARALLEL, "null");
4128 if (default_serial && default_monitor) {
4129 add_device_config(DEV_SERIAL, "mon:stdio");
4130 } else if (default_virtcon && default_monitor) {
4131 add_device_config(DEV_VIRTCON, "mon:stdio");
4134 add_device_config(DEV_SERIAL, "stdio");
4135 if (default_virtcon)
4136 add_device_config(DEV_VIRTCON, "stdio");
4137 if (default_monitor)
4138 monitor_parse("stdio", "readline", false);
4142 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4143 if (default_parallel)
4144 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4145 if (default_monitor)
4146 monitor_parse("vc:80Cx24C", "readline", false);
4147 if (default_virtcon)
4148 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4151 #if defined(CONFIG_VNC)
4152 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4156 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4157 if (!qemu_display_find_default(&dpy)) {
4158 dpy.type = DISPLAY_TYPE_NONE;
4159 #if defined(CONFIG_VNC)
4160 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4164 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4165 dpy.type = DISPLAY_TYPE_NONE;
4168 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4169 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4170 "for SDL, ignoring option");
4172 if (dpy.has_window_close &&
4173 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4174 error_report("-no-quit is only valid for GTK and SDL, "
4178 qemu_display_early_init(&dpy);
4179 qemu_console_early_init();
4181 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4182 #if defined(CONFIG_OPENGL)
4183 error_report("OpenGL is not supported by the display");
4185 error_report("OpenGL support is disabled");
4193 if (qemu_opts_foreach(qemu_find_opts("object"),
4194 user_creatable_add_opts_foreach,
4195 object_create_initial, NULL)) {
4199 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4200 chardev_init_func, NULL, NULL)) {
4204 #ifdef CONFIG_VIRTFS
4205 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4206 fsdev_init_func, NULL, NULL)) {
4211 if (qemu_opts_foreach(qemu_find_opts("device"),
4212 device_help_func, NULL, NULL)) {
4216 machine_opts = qemu_get_machine_opts();
4217 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4219 object_unref(OBJECT(current_machine));
4223 configure_accelerator(current_machine);
4225 if (!qtest_enabled() && machine_class->deprecation_reason) {
4226 error_report("Machine type '%s' is deprecated: %s",
4227 machine_class->name, machine_class->deprecation_reason);
4231 * Register all the global properties, including accel properties,
4232 * machine properties, and user-specified ones.
4234 register_global_properties(current_machine);
4237 * Migration object can only be created after global properties
4238 * are applied correctly.
4240 migration_object_init();
4243 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4246 machine_opts = qemu_get_machine_opts();
4247 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4248 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4249 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4250 bios_name = qemu_opt_get(machine_opts, "firmware");
4252 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4254 boot_order = qemu_opt_get(opts, "order");
4256 validate_bootdevices(boot_order, &error_fatal);
4259 boot_once = qemu_opt_get(opts, "once");
4261 validate_bootdevices(boot_once, &error_fatal);
4264 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4265 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4269 boot_order = machine_class->default_boot_order;
4272 if (!kernel_cmdline) {
4273 kernel_cmdline = "";
4274 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4277 linux_boot = (kernel_filename != NULL);
4279 if (!linux_boot && *kernel_cmdline != '\0') {
4280 error_report("-append only allowed with -kernel option");
4284 if (!linux_boot && initrd_filename != NULL) {
4285 error_report("-initrd only allowed with -kernel option");
4289 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4290 /* fall back to the -kernel/-append */
4291 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4294 os_set_line_buffering();
4296 /* spice needs the timers to be initialized by this point */
4301 if (!tcg_enabled()) {
4302 error_report("-icount is not allowed with hardware virtualization");
4305 configure_icount(icount_opts, &error_abort);
4306 qemu_opts_del(icount_opts);
4309 if (tcg_enabled()) {
4310 qemu_tcg_configure(accel_opts, &error_fatal);
4314 QemuOptsList *net = qemu_find_opts("net");
4315 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4317 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4323 if (net_init_clients(&err) < 0) {
4324 error_report_err(err);
4328 if (qemu_opts_foreach(qemu_find_opts("object"),
4329 user_creatable_add_opts_foreach,
4330 object_create_delayed, NULL)) {
4334 if (tpm_init() < 0) {
4338 /* init the bluetooth world */
4339 if (foreach_device_config(DEV_BT, bt_parse))
4342 if (!xen_enabled()) {
4343 /* On 32-bit hosts, QEMU is limited by virtual address space */
4344 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4345 error_report("at most 2047 MB RAM can be simulated");
4352 dirty_bitmap_mig_init();
4354 /* If the currently selected machine wishes to override the units-per-bus
4355 * property of its default HBA interface type, do so now. */
4356 if (machine_class->units_per_default_bus) {
4357 override_max_devs(machine_class->block_default_type,
4358 machine_class->units_per_default_bus);
4361 /* open the virtual block devices */
4362 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4363 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4365 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4366 loc_push_restore(&bdo->loc);
4367 qmp_blockdev_add(bdo->bdo, &error_fatal);
4369 qapi_free_BlockdevOptions(bdo->bdo);
4372 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4373 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4376 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4377 &machine_class->block_default_type, NULL)) {
4381 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4383 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4384 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4386 if (qemu_opts_foreach(qemu_find_opts("mon"),
4387 mon_init_func, NULL, NULL)) {
4391 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4393 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4395 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4397 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4400 /* If no default VGA is requested, the default is "none". */
4402 if (machine_class->default_display) {
4403 vga_model = machine_class->default_display;
4404 } else if (vga_interface_available(VGA_CIRRUS)) {
4405 vga_model = "cirrus";
4406 } else if (vga_interface_available(VGA_STD)) {
4411 select_vgahw(vga_model);
4415 i = select_watchdog(watchdog);
4417 exit (i == 1 ? 1 : 0);
4420 /* This checkpoint is required by replay to separate prior clock
4421 reading from the other reads, because timer polling functions query
4422 clock values from the log. */
4423 replay_checkpoint(CHECKPOINT_INIT);
4424 qdev_machine_init();
4426 current_machine->ram_size = ram_size;
4427 current_machine->maxram_size = maxram_size;
4428 current_machine->ram_slots = ram_slots;
4429 current_machine->boot_order = boot_order;
4431 /* parse features once if machine provides default cpu_type */
4432 current_machine->cpu_type = machine_class->default_cpu_type;
4434 current_machine->cpu_type = parse_cpu_model(cpu_model);
4436 parse_numa_opts(current_machine);
4438 /* do monitor/qmp handling at preconfig state if requested */
4441 /* from here on runstate is RUN_STATE_PRELAUNCH */
4442 machine_run_board_init(current_machine);
4448 if (hax_enabled()) {
4452 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4453 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4457 /* init USB devices */
4458 if (machine_usb(current_machine)) {
4459 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4463 /* Check if IGD GFX passthrough. */
4466 /* init generic devices */
4467 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4468 if (qemu_opts_foreach(qemu_find_opts("device"),
4469 device_init_func, NULL, NULL)) {
4473 cpu_synchronize_all_post_init();
4475 rom_reset_order_override();
4477 /* Did we create any drives that we failed to create a device for? */
4478 drive_check_orphaned();
4480 /* Don't warn about the default network setup that you get if
4481 * no command line -net or -netdev options are specified. There
4482 * are two cases that we would otherwise complain about:
4483 * (1) board doesn't support a NIC but the implicit "-net nic"
4485 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4486 * sets up a nic that isn't connected to anything.
4488 if (!default_net && (!qtest_enabled() || has_defaults)) {
4489 net_check_clients();
4493 qemu_boot_set(boot_once, &error_fatal);
4494 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4497 /* init local displays */
4498 ds = init_displaystate();
4499 qemu_display_init(ds, &dpy);
4501 /* must be after terminal init, SDL library changes signal handlers */
4502 os_setup_signal_handling();
4504 /* init remote displays */
4506 qemu_opts_foreach(qemu_find_opts("vnc"),
4507 vnc_init_func, NULL, NULL);
4511 qemu_spice_display_init();
4514 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4518 qdev_machine_creation_done();
4520 /* TODO: once all bus devices are qdevified, this should be done
4521 * when bus is created by qdev.c */
4522 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4523 qemu_run_machine_init_done_notifiers();
4525 if (rom_check_and_register_reset() != 0) {
4526 error_report("rom check and register reset failed");
4532 /* This checkpoint is required by replay to separate prior clock
4533 reading from the other reads, because timer polling functions query
4534 clock values from the log. */
4535 replay_checkpoint(CHECKPOINT_RESET);
4536 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4537 register_global_state();
4539 Error *local_err = NULL;
4540 if (load_snapshot(loadvm, &local_err) < 0) {
4541 error_report_err(local_err);
4546 if (replay_mode != REPLAY_MODE_NONE) {
4547 replay_vmstate_init();
4550 qdev_prop_check_globals();
4551 if (vmstate_dump_file) {
4553 dump_vmstate_json_to_file(vmstate_dump_file);
4558 Error *local_err = NULL;
4559 qemu_start_incoming_migration(incoming, &local_err);
4561 error_reportf_err(local_err, "-incoming %s: ", incoming);
4564 } else if (autostart) {
4568 accel_setup_post(current_machine);
4573 gdbserver_cleanup();
4575 /* No more vcpu or device emulation activity beyond this point */
4578 job_cancel_sync_all();
4583 /* vhost-user must be cleaned up before chardevs. */
4589 user_creatable_cleanup();
4590 migration_object_finalize();
4591 /* TODO: unref root container, check all devices are ok */