4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
31 #include "sysemu/seccomp.h"
34 #if defined(CONFIG_VDE)
35 #include <libvdeplug.h>
39 #if defined(__APPLE__) || defined(main)
41 int qemu_main(int argc, char **argv, char **envp);
42 int main(int argc, char **argv)
44 return qemu_main(argc, argv, NULL);
47 #define main qemu_main
49 #endif /* CONFIG_SDL */
53 #define main qemu_main
54 #endif /* CONFIG_COCOA */
57 #include "qemu/error-report.h"
58 #include "qemu/sockets.h"
60 #include "hw/boards.h"
61 #include "sysemu/accel.h"
63 #include "hw/i386/pc.h"
64 #include "hw/isa/isa.h"
65 #include "hw/scsi/scsi.h"
67 #include "sysemu/watchdog.h"
68 #include "hw/smbios/smbios.h"
69 #include "hw/acpi/acpi.h"
70 #include "hw/xen/xen.h"
72 #include "hw/loader.h"
73 #include "monitor/qdev.h"
74 #include "sysemu/bt.h"
76 #include "net/slirp.h"
77 #include "monitor/monitor.h"
78 #include "ui/console.h"
80 #include "sysemu/sysemu.h"
81 #include "sysemu/numa.h"
82 #include "exec/gdbstub.h"
83 #include "qemu/timer.h"
84 #include "sysemu/char.h"
85 #include "qemu/bitmap.h"
87 #include "sysemu/blockdev.h"
88 #include "hw/block/block.h"
89 #include "migration/block.h"
90 #include "sysemu/tpm.h"
91 #include "sysemu/dma.h"
92 #include "audio/audio.h"
93 #include "migration/migration.h"
94 #include "sysemu/cpus.h"
95 #include "migration/colo.h"
96 #include "sysemu/kvm.h"
97 #include "sysemu/hax.h"
98 #include "qapi/qmp/qjson.h"
99 #include "qemu/option.h"
100 #include "qemu/config-file.h"
101 #include "qemu-options.h"
102 #include "qmp-commands.h"
103 #include "qemu/main-loop.h"
105 #include "fsdev/qemu-fsdev.h"
107 #include "sysemu/qtest.h"
109 #include "disas/disas.h"
112 #include "slirp/libslirp.h"
114 #include "trace-root.h"
115 #include "trace/control.h"
116 #include "qemu/queue.h"
117 #include "sysemu/arch_init.h"
119 #include "ui/qemu-spice.h"
120 #include "qapi/string-input-visitor.h"
121 #include "qapi/opts-visitor.h"
122 #include "qom/object_interfaces.h"
123 #include "qapi-event.h"
124 #include "exec/semihost.h"
125 #include "crypto/init.h"
126 #include "sysemu/replay.h"
127 #include "qapi/qmp/qerror.h"
128 #include "sysemu/iothread.h"
130 #define MAX_VIRTIO_CONSOLES 1
131 #define MAX_SCLP_CONSOLES 1
133 static const char *data_dir[16];
134 static int data_dir_idx;
135 const char *bios_name = NULL;
136 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
137 int request_opengl = -1;
139 const char* keyboard_layout = NULL;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
145 NICInfo nd_table[MAX_NICS];
147 static int rtc_utc = 1;
148 static int rtc_date_offset = -1; /* -1 means no change */
149 QEMUClockType rtc_clock;
150 int vga_interface_type = VGA_NONE;
151 static int full_screen = 0;
152 static int no_frame = 0;
154 static bool grab_on_hover;
155 Chardev *serial_hds[MAX_SERIAL_PORTS];
156 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
157 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
158 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
159 int win2k_install_hack = 0;
165 int acpi_enabled = 1;
168 static int no_reboot;
171 int graphic_rotate = 0;
172 const char *watchdog;
173 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 const char *qemu_name;
179 unsigned int nb_prom_envs = 0;
180 const char *prom_envs[MAX_PROM_ENVS];
183 uint8_t *boot_splash_filedata;
184 size_t boot_splash_filedata_size;
185 uint8_t qemu_extra_params_fw[2];
186 int only_migratable; /* turn it off unless user states otherwise */
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;
206 static int has_defaults = 1;
207 static int default_serial = 1;
208 static int default_parallel = 1;
209 static int default_virtcon = 1;
210 static int default_sclp = 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_sandbox_opts = {
262 .implied_opt_name = "enable",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
267 .type = QEMU_OPT_BOOL,
269 { /* end of list */ }
273 static QemuOptsList qemu_option_rom_opts = {
274 .name = "option-rom",
275 .implied_opt_name = "romfile",
276 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
280 .type = QEMU_OPT_NUMBER,
283 .type = QEMU_OPT_STRING,
285 { /* end of list */ }
289 static QemuOptsList qemu_machine_opts = {
291 .implied_opt_name = "type",
293 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
296 * no elements => accept any
297 * sanity checking will happen later
298 * when setting machine properties
304 static QemuOptsList qemu_accel_opts = {
306 .implied_opt_name = "accel",
307 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
312 .type = QEMU_OPT_STRING,
313 .help = "Select the type of accelerator",
317 .type = QEMU_OPT_STRING,
318 .help = "Enable/disable multi-threaded TCG",
320 { /* end of list */ }
324 static QemuOptsList qemu_boot_opts = {
326 .implied_opt_name = "order",
328 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
332 .type = QEMU_OPT_STRING,
335 .type = QEMU_OPT_STRING,
338 .type = QEMU_OPT_BOOL,
341 .type = QEMU_OPT_STRING,
343 .name = "splash-time",
344 .type = QEMU_OPT_STRING,
346 .name = "reboot-timeout",
347 .type = QEMU_OPT_STRING,
350 .type = QEMU_OPT_BOOL,
356 static QemuOptsList qemu_add_fd_opts = {
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
362 .type = QEMU_OPT_NUMBER,
363 .help = "file descriptor of which a duplicate is added to fd set",
366 .type = QEMU_OPT_NUMBER,
367 .help = "ID of the fd set to add fd to",
370 .type = QEMU_OPT_STRING,
371 .help = "free-form string used to describe fd",
373 { /* end of list */ }
377 static QemuOptsList qemu_object_opts = {
379 .implied_opt_name = "qom-type",
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
386 static QemuOptsList qemu_tpmdev_opts = {
388 .implied_opt_name = "type",
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
391 /* options are defined in the TPM backends */
392 { /* end of list */ }
396 static QemuOptsList qemu_realtime_opts = {
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
402 .type = QEMU_OPT_BOOL,
404 { /* end of list */ }
408 static QemuOptsList qemu_msg_opts = {
410 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
414 .type = QEMU_OPT_BOOL,
416 { /* end of list */ }
420 static QemuOptsList qemu_name_opts = {
422 .implied_opt_name = "guest",
424 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
428 .type = QEMU_OPT_STRING,
429 .help = "Sets the name of the guest.\n"
430 "This name will be displayed in the SDL window caption.\n"
431 "The name will also be used for the VNC server",
434 .type = QEMU_OPT_STRING,
435 .help = "Sets the name of the QEMU process, as shown in top etc",
437 .name = "debug-threads",
438 .type = QEMU_OPT_BOOL,
439 .help = "When enabled, name the individual threads; defaults off.\n"
440 "NOTE: The thread names are for debugging and not a\n"
443 { /* End of list */ }
447 static QemuOptsList qemu_mem_opts = {
449 .implied_opt_name = "size",
450 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
455 .type = QEMU_OPT_SIZE,
459 .type = QEMU_OPT_NUMBER,
463 .type = QEMU_OPT_SIZE,
465 { /* end of list */ }
469 static QemuOptsList qemu_icount_opts = {
471 .implied_opt_name = "shift",
473 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
477 .type = QEMU_OPT_STRING,
480 .type = QEMU_OPT_BOOL,
483 .type = QEMU_OPT_BOOL,
486 .type = QEMU_OPT_STRING,
489 .type = QEMU_OPT_STRING,
491 .name = "rrsnapshot",
492 .type = QEMU_OPT_STRING,
494 { /* end of list */ }
498 static QemuOptsList qemu_semihosting_config_opts = {
499 .name = "semihosting-config",
500 .implied_opt_name = "enable",
501 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
505 .type = QEMU_OPT_BOOL,
508 .type = QEMU_OPT_STRING,
511 .type = QEMU_OPT_STRING,
513 { /* end of list */ }
517 static QemuOptsList qemu_fw_cfg_opts = {
519 .implied_opt_name = "name",
520 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
524 .type = QEMU_OPT_STRING,
525 .help = "Sets the fw_cfg name of the blob to be inserted",
528 .type = QEMU_OPT_STRING,
529 .help = "Sets the name of the file from which\n"
530 "the fw_cfg blob will be loaded",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets content of the blob to be inserted from a string",
536 { /* end of list */ }
541 * Get machine options
543 * Returns: machine options (never null).
545 QemuOpts *qemu_get_machine_opts(void)
547 return qemu_find_opts_singleton("machine");
550 const char *qemu_get_vm_name(void)
555 static void res_free(void)
557 g_free(boot_splash_filedata);
558 boot_splash_filedata = NULL;
561 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
563 const char *driver = qemu_opt_get(opts, "driver");
568 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
569 if (strcmp(default_list[i].driver, driver) != 0)
571 *(default_list[i].flag) = 0;
576 /***********************************************************/
579 static RunState current_run_state = RUN_STATE_PRELAUNCH;
581 /* We use RUN_STATE__MAX but any invalid value will do */
582 static RunState vmstop_requested = RUN_STATE__MAX;
583 static QemuMutex vmstop_lock;
588 } RunStateTransition;
590 static const RunStateTransition runstate_transitions_def[] = {
592 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
593 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
594 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
596 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
597 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
598 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
599 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
600 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
601 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
602 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
603 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
604 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
605 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
606 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
607 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
609 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
610 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
614 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
617 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
618 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
620 { RUN_STATE_PAUSED, RUN_STATE_COLO},
622 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
623 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
626 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
627 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
630 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
631 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
635 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
636 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
638 { RUN_STATE_COLO, RUN_STATE_RUNNING },
640 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
641 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
642 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
643 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
644 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
646 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
647 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
648 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
649 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
650 { RUN_STATE_RUNNING, RUN_STATE_COLO},
652 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
654 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
655 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
656 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
658 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
659 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
660 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
661 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
663 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
665 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
666 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
667 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
668 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
670 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
671 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
672 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
674 { RUN_STATE__MAX, RUN_STATE__MAX },
677 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
679 bool runstate_check(RunState state)
681 return current_run_state == state;
684 bool runstate_store(char *str, size_t size)
686 const char *state = RunState_lookup[current_run_state];
687 size_t len = strlen(state) + 1;
692 memcpy(str, state, len);
696 static void runstate_init(void)
698 const RunStateTransition *p;
700 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
701 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
702 runstate_valid_transitions[p->from][p->to] = true;
705 qemu_mutex_init(&vmstop_lock);
708 /* This function will abort() on invalid state transitions */
709 void runstate_set(RunState new_state)
711 assert(new_state < RUN_STATE__MAX);
713 if (current_run_state == new_state) {
717 if (!runstate_valid_transitions[current_run_state][new_state]) {
718 error_report("invalid runstate transition: '%s' -> '%s'",
719 RunState_lookup[current_run_state],
720 RunState_lookup[new_state]);
723 trace_runstate_set(new_state);
724 current_run_state = new_state;
727 int runstate_is_running(void)
729 return runstate_check(RUN_STATE_RUNNING);
732 bool runstate_needs_reset(void)
734 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
735 runstate_check(RUN_STATE_SHUTDOWN);
738 StatusInfo *qmp_query_status(Error **errp)
740 StatusInfo *info = g_malloc0(sizeof(*info));
742 info->running = runstate_is_running();
743 info->singlestep = singlestep;
744 info->status = current_run_state;
749 bool qemu_vmstop_requested(RunState *r)
751 qemu_mutex_lock(&vmstop_lock);
752 *r = vmstop_requested;
753 vmstop_requested = RUN_STATE__MAX;
754 qemu_mutex_unlock(&vmstop_lock);
755 return *r < RUN_STATE__MAX;
758 void qemu_system_vmstop_request_prepare(void)
760 qemu_mutex_lock(&vmstop_lock);
763 void qemu_system_vmstop_request(RunState state)
765 vmstop_requested = state;
766 qemu_mutex_unlock(&vmstop_lock);
770 /***********************************************************/
771 /* real time host monotonic timer */
773 static time_t qemu_time(void)
775 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
778 /***********************************************************/
779 /* host time/date access */
780 void qemu_get_timedate(struct tm *tm, int offset)
782 time_t ti = qemu_time();
785 if (rtc_date_offset == -1) {
789 localtime_r(&ti, tm);
791 ti -= rtc_date_offset;
796 int qemu_timedate_diff(struct tm *tm)
800 if (rtc_date_offset == -1)
802 seconds = mktimegm(tm);
805 tmp.tm_isdst = -1; /* use timezone to figure it out */
806 seconds = mktime(&tmp);
809 seconds = mktimegm(tm) + rtc_date_offset;
811 return seconds - qemu_time();
814 static void configure_rtc_date_offset(const char *startdate, int legacy)
816 time_t rtc_start_date;
819 if (!strcmp(startdate, "now") && legacy) {
820 rtc_date_offset = -1;
822 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
830 } else if (sscanf(startdate, "%d-%d-%d",
842 rtc_start_date = mktimegm(&tm);
843 if (rtc_start_date == -1) {
845 error_report("invalid date format");
846 error_printf("valid formats: "
847 "'2006-06-17T16:01:21' or '2006-06-17'\n");
850 rtc_date_offset = qemu_time() - rtc_start_date;
854 static void configure_rtc(QemuOpts *opts)
858 value = qemu_opt_get(opts, "base");
860 if (!strcmp(value, "utc")) {
862 } else if (!strcmp(value, "localtime")) {
863 Error *blocker = NULL;
865 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
866 "-rtc base=localtime");
867 replay_add_blocker(blocker);
869 configure_rtc_date_offset(value, 0);
872 value = qemu_opt_get(opts, "clock");
874 if (!strcmp(value, "host")) {
875 rtc_clock = QEMU_CLOCK_HOST;
876 } else if (!strcmp(value, "rt")) {
877 rtc_clock = QEMU_CLOCK_REALTIME;
878 } else if (!strcmp(value, "vm")) {
879 rtc_clock = QEMU_CLOCK_VIRTUAL;
881 error_report("invalid option value '%s'", value);
885 value = qemu_opt_get(opts, "driftfix");
887 if (!strcmp(value, "slew")) {
888 static GlobalProperty slew_lost_ticks = {
889 .driver = "mc146818rtc",
890 .property = "lost_tick_policy",
894 qdev_prop_register_global(&slew_lost_ticks);
895 } else if (!strcmp(value, "none")) {
896 /* discard is default */
898 error_report("invalid option value '%s'", value);
904 /***********************************************************/
905 /* Bluetooth support */
908 static struct HCIInfo *hci_table[MAX_NICS];
910 struct HCIInfo *qemu_next_hci(void)
912 if (cur_hci == nb_hcis)
915 return hci_table[cur_hci++];
918 static int bt_hci_parse(const char *str)
923 if (nb_hcis >= MAX_NICS) {
924 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
937 bdaddr.b[5] = 0x56 + nb_hcis;
938 hci->bdaddr_set(hci, bdaddr.b);
940 hci_table[nb_hcis++] = hci;
945 static void bt_vhci_add(int vlan_id)
947 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
950 error_report("warning: adding a VHCI to an empty scatternet %i",
953 bt_vhci_init(bt_new_hci(vlan));
956 static struct bt_device_s *bt_device_add(const char *opt)
958 struct bt_scatternet_s *vlan;
960 char *endp = strstr(opt, ",vlan=");
961 int len = (endp ? endp - opt : strlen(opt)) + 1;
964 pstrcpy(devname, MIN(sizeof(devname), len), opt);
967 vlan_id = strtol(endp + 6, &endp, 0);
969 error_report("unrecognised bluetooth vlan Id");
974 vlan = qemu_find_bt_vlan(vlan_id);
977 error_report("warning: adding a slave device to an empty scatternet %i",
980 if (!strcmp(devname, "keyboard"))
981 return bt_keyboard_init(vlan);
983 error_report("unsupported bluetooth device '%s'", devname);
987 static int bt_parse(const char *opt)
989 const char *endp, *p;
992 if (strstart(opt, "hci", &endp)) {
993 if (!*endp || *endp == ',') {
995 if (!strstart(endp, ",vlan=", 0))
998 return bt_hci_parse(opt);
1000 } else if (strstart(opt, "vhci", &endp)) {
1001 if (!*endp || *endp == ',') {
1003 if (strstart(endp, ",vlan=", &p)) {
1004 vlan = strtol(p, (char **) &endp, 0);
1006 error_report("bad scatternet '%s'", p);
1010 error_report("bad parameter '%s'", endp + 1);
1019 } else if (strstart(opt, "device:", &endp))
1020 return !bt_device_add(endp);
1022 error_report("bad bluetooth parameter '%s'", opt);
1026 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1028 /* FIXME: change this to true for 1.3 */
1029 if (qemu_opt_get_bool(opts, "enable", false)) {
1030 #ifdef CONFIG_SECCOMP
1031 if (seccomp_start() < 0) {
1032 error_report("failed to install seccomp syscall filter "
1037 error_report("seccomp support is disabled");
1045 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1047 const char *proc_name;
1049 if (qemu_opt_get(opts, "debug-threads")) {
1050 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1052 qemu_name = qemu_opt_get(opts, "guest");
1054 proc_name = qemu_opt_get(opts, "process");
1056 os_set_proc_name(proc_name);
1062 bool defaults_enabled(void)
1064 return has_defaults;
1068 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1070 int fd, dupfd, flags;
1072 const char *fd_opaque = NULL;
1075 fd = qemu_opt_get_number(opts, "fd", -1);
1076 fdset_id = qemu_opt_get_number(opts, "set", -1);
1077 fd_opaque = qemu_opt_get(opts, "opaque");
1080 error_report("fd option is required and must be non-negative");
1084 if (fd <= STDERR_FILENO) {
1085 error_report("fd cannot be a standard I/O stream");
1090 * All fds inherited across exec() necessarily have FD_CLOEXEC
1091 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1093 flags = fcntl(fd, F_GETFD);
1094 if (flags == -1 || (flags & FD_CLOEXEC)) {
1095 error_report("fd is not valid or already in use");
1100 error_report("set option is required and must be non-negative");
1104 #ifdef F_DUPFD_CLOEXEC
1105 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1109 qemu_set_cloexec(dupfd);
1113 error_report("error duplicating fd: %s", strerror(errno));
1117 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1118 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1125 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1129 fd = qemu_opt_get_number(opts, "fd", -1);
1136 /***********************************************************/
1137 /* QEMU Block devices */
1139 #define HD_OPTS "media=disk"
1140 #define CDROM_OPTS "media=cdrom"
1142 #define PFLASH_OPTS ""
1146 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1148 BlockInterfaceType *block_default_type = opaque;
1150 return drive_new(opts, *block_default_type) == NULL;
1153 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1155 if (qemu_opt_get(opts, "snapshot") == NULL) {
1156 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1161 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1162 int index, const char *optstr)
1167 if (!enable || drive_get_by_index(type, index)) {
1171 opts = drive_add(type, index, NULL, optstr);
1173 drive_enable_snapshot(NULL, opts, NULL);
1176 dinfo = drive_new(opts, type);
1180 dinfo->is_default = true;
1184 static QemuOptsList qemu_smp_opts = {
1186 .implied_opt_name = "cpus",
1187 .merge_lists = true,
1188 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1192 .type = QEMU_OPT_NUMBER,
1195 .type = QEMU_OPT_NUMBER,
1198 .type = QEMU_OPT_NUMBER,
1201 .type = QEMU_OPT_NUMBER,
1204 .type = QEMU_OPT_NUMBER,
1206 { /*End of list */ }
1210 static void smp_parse(QemuOpts *opts)
1213 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1214 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1215 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1216 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1218 /* compute missing values, prefer sockets over cores over threads */
1219 if (cpus == 0 || sockets == 0) {
1220 sockets = sockets > 0 ? sockets : 1;
1221 cores = cores > 0 ? cores : 1;
1222 threads = threads > 0 ? threads : 1;
1224 cpus = cores * threads * sockets;
1226 } else if (cores == 0) {
1227 threads = threads > 0 ? threads : 1;
1228 cores = cpus / (sockets * threads);
1229 cores = cores > 0 ? cores : 1;
1230 } else if (threads == 0) {
1231 threads = cpus / (cores * sockets);
1232 threads = threads > 0 ? threads : 1;
1233 } else if (sockets * cores * threads < cpus) {
1234 error_report("cpu topology: "
1235 "sockets (%u) * cores (%u) * threads (%u) < "
1237 sockets, cores, threads, cpus);
1241 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1243 if (max_cpus < cpus) {
1244 error_report("maxcpus must be equal to or greater than smp");
1248 if (sockets * cores * threads > max_cpus) {
1249 error_report("cpu topology: "
1250 "sockets (%u) * cores (%u) * threads (%u) > "
1252 sockets, cores, threads, max_cpus);
1258 smp_threads = threads;
1262 Error *blocker = NULL;
1263 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1264 replay_add_blocker(blocker);
1268 static void realtime_init(void)
1271 if (os_mlock() < 0) {
1272 error_report("locking memory failed");
1279 static void configure_msg(QemuOpts *opts)
1281 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1284 /***********************************************************/
1287 typedef struct SemihostingConfig {
1289 SemihostingTarget target;
1292 const char *cmdline; /* concatenated argv */
1293 } SemihostingConfig;
1295 static SemihostingConfig semihosting;
1297 bool semihosting_enabled(void)
1299 return semihosting.enabled;
1302 SemihostingTarget semihosting_get_target(void)
1304 return semihosting.target;
1307 const char *semihosting_get_arg(int i)
1309 if (i >= semihosting.argc) {
1312 return semihosting.argv[i];
1315 int semihosting_get_argc(void)
1317 return semihosting.argc;
1320 const char *semihosting_get_cmdline(void)
1322 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1323 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1325 return semihosting.cmdline;
1328 static int add_semihosting_arg(void *opaque,
1329 const char *name, const char *val,
1332 SemihostingConfig *s = opaque;
1333 if (strcmp(name, "arg") == 0) {
1335 /* one extra element as g_strjoinv() expects NULL-terminated array */
1336 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1337 s->argv[s->argc - 1] = val;
1338 s->argv[s->argc] = NULL;
1343 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1344 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1349 add_semihosting_arg(&semihosting, "arg", file, NULL);
1351 /* split -append and initialize argv[1..n] */
1352 cmd_token = strtok(g_strdup(cmd), " ");
1354 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1355 cmd_token = strtok(NULL, " ");
1359 /* Now we still need this for compatibility with XEN. */
1360 bool has_igd_gfx_passthru;
1361 static void igd_gfx_passthru(void)
1363 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1366 /***********************************************************/
1369 static int usb_device_add(const char *devname)
1371 USBDevice *dev = NULL;
1372 #ifndef CONFIG_LINUX
1376 if (!machine_usb(current_machine)) {
1380 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1381 dev = usbdevice_create(devname);
1385 /* the other ones */
1386 #ifndef CONFIG_LINUX
1387 /* only the linux version is qdev-ified, usb-bsd still needs this */
1388 if (strstart(devname, "host:", &p)) {
1389 dev = usb_host_device_open(usb_bus_find(-1), p);
1399 static int usb_device_del(const char *devname)
1404 if (strstart(devname, "host:", &p)) {
1408 if (!machine_usb(current_machine)) {
1412 p = strchr(devname, '.');
1415 bus_num = strtoul(devname, NULL, 0);
1416 addr = strtoul(p + 1, NULL, 0);
1418 return usb_device_delete_addr(bus_num, addr);
1421 static int usb_parse(const char *cmdline)
1424 r = usb_device_add(cmdline);
1426 error_report("could not add USB device '%s'", cmdline);
1431 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1433 const char *devname = qdict_get_str(qdict, "devname");
1434 if (usb_device_add(devname) < 0) {
1435 error_report("could not add USB device '%s'", devname);
1439 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1441 const char *devname = qdict_get_str(qdict, "devname");
1442 if (usb_device_del(devname) < 0) {
1443 error_report("could not delete USB device '%s'", devname);
1447 /***********************************************************/
1448 /* machine registration */
1450 MachineState *current_machine;
1452 static MachineClass *find_machine(const char *name)
1454 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1455 MachineClass *mc = NULL;
1457 for (el = machines; el; el = el->next) {
1458 MachineClass *temp = el->data;
1460 if (!strcmp(temp->name, name)) {
1465 !strcmp(temp->alias, name)) {
1471 g_slist_free(machines);
1475 MachineClass *find_default_machine(void)
1477 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1478 MachineClass *mc = NULL;
1480 for (el = machines; el; el = el->next) {
1481 MachineClass *temp = el->data;
1483 if (temp->is_default) {
1489 g_slist_free(machines);
1493 MachineInfoList *qmp_query_machines(Error **errp)
1495 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1496 MachineInfoList *mach_list = NULL;
1498 for (el = machines; el; el = el->next) {
1499 MachineClass *mc = el->data;
1500 MachineInfoList *entry;
1503 info = g_malloc0(sizeof(*info));
1504 if (mc->is_default) {
1505 info->has_is_default = true;
1506 info->is_default = true;
1510 info->has_alias = true;
1511 info->alias = g_strdup(mc->alias);
1514 info->name = g_strdup(mc->name);
1515 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1516 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1518 entry = g_malloc0(sizeof(*entry));
1519 entry->value = info;
1520 entry->next = mach_list;
1524 g_slist_free(machines);
1528 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1530 ObjectProperty *prop;
1531 ObjectPropertyIterator iter;
1533 if (!qemu_opt_has_help_opt(opts)) {
1537 object_property_iter_init(&iter, OBJECT(machine));
1538 while ((prop = object_property_iter_next(&iter))) {
1543 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1544 prop->name, prop->type);
1545 if (prop->description) {
1546 error_printf(" (%s)\n", prop->description);
1555 /***********************************************************/
1556 /* main execution loop */
1558 struct vm_change_state_entry {
1559 VMChangeStateHandler *cb;
1561 QLIST_ENTRY (vm_change_state_entry) entries;
1564 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1566 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1569 VMChangeStateEntry *e;
1571 e = g_malloc0(sizeof (*e));
1575 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1579 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1581 QLIST_REMOVE (e, entries);
1585 void vm_state_notify(int running, RunState state)
1587 VMChangeStateEntry *e, *next;
1589 trace_vm_state_notify(running, state);
1591 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1592 e->cb(e->opaque, running, state);
1596 static int reset_requested;
1597 static int shutdown_requested, shutdown_signal = -1;
1598 static pid_t shutdown_pid;
1599 static int powerdown_requested;
1600 static int debug_requested;
1601 static int suspend_requested;
1602 static WakeupReason wakeup_reason;
1603 static NotifierList powerdown_notifiers =
1604 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1605 static NotifierList suspend_notifiers =
1606 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1607 static NotifierList wakeup_notifiers =
1608 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1609 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1611 int qemu_shutdown_requested_get(void)
1613 return shutdown_requested;
1616 int qemu_reset_requested_get(void)
1618 return reset_requested;
1621 static int qemu_shutdown_requested(void)
1623 return atomic_xchg(&shutdown_requested, 0);
1626 static void qemu_kill_report(void)
1628 if (!qtest_driver() && shutdown_signal != -1) {
1629 if (shutdown_pid == 0) {
1630 /* This happens for eg ^C at the terminal, so it's worth
1631 * avoiding printing an odd message in that case.
1633 error_report("terminating on signal %d", shutdown_signal);
1635 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1637 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1638 shutdown_signal, shutdown_pid,
1639 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1640 g_free(shutdown_cmd);
1642 shutdown_signal = -1;
1646 static int qemu_reset_requested(void)
1648 int r = reset_requested;
1649 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1650 reset_requested = 0;
1656 static int qemu_suspend_requested(void)
1658 int r = suspend_requested;
1659 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1660 suspend_requested = 0;
1666 static WakeupReason qemu_wakeup_requested(void)
1668 return wakeup_reason;
1671 static int qemu_powerdown_requested(void)
1673 int r = powerdown_requested;
1674 powerdown_requested = 0;
1678 static int qemu_debug_requested(void)
1680 int r = debug_requested;
1681 debug_requested = 0;
1685 void qemu_system_reset(bool report)
1689 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1691 cpu_synchronize_all_states();
1693 if (mc && mc->reset) {
1696 qemu_devices_reset();
1699 qapi_event_send_reset(&error_abort);
1701 cpu_synchronize_all_post_reset();
1704 void qemu_system_guest_panicked(GuestPanicInformation *info)
1706 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1709 current_cpu->crash_occurred = true;
1711 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1712 !!info, info, &error_abort);
1713 vm_stop(RUN_STATE_GUEST_PANICKED);
1715 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1716 !!info, info, &error_abort);
1717 qemu_system_shutdown_request();
1721 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1722 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1723 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1724 info->u.hyper_v.arg1,
1725 info->u.hyper_v.arg2,
1726 info->u.hyper_v.arg3,
1727 info->u.hyper_v.arg4,
1728 info->u.hyper_v.arg5);
1730 qapi_free_GuestPanicInformation(info);
1734 void qemu_system_reset_request(void)
1737 shutdown_requested = 1;
1739 reset_requested = 1;
1742 qemu_notify_event();
1745 static void qemu_system_suspend(void)
1748 notifier_list_notify(&suspend_notifiers, NULL);
1749 runstate_set(RUN_STATE_SUSPENDED);
1750 qapi_event_send_suspend(&error_abort);
1753 void qemu_system_suspend_request(void)
1755 if (runstate_check(RUN_STATE_SUSPENDED)) {
1758 suspend_requested = 1;
1760 qemu_notify_event();
1763 void qemu_register_suspend_notifier(Notifier *notifier)
1765 notifier_list_add(&suspend_notifiers, notifier);
1768 void qemu_system_wakeup_request(WakeupReason reason)
1770 trace_system_wakeup_request(reason);
1772 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1775 if (!(wakeup_reason_mask & (1 << reason))) {
1778 runstate_set(RUN_STATE_RUNNING);
1779 wakeup_reason = reason;
1780 qemu_notify_event();
1783 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1786 wakeup_reason_mask |= (1 << reason);
1788 wakeup_reason_mask &= ~(1 << reason);
1792 void qemu_register_wakeup_notifier(Notifier *notifier)
1794 notifier_list_add(&wakeup_notifiers, notifier);
1797 void qemu_system_killed(int signal, pid_t pid)
1799 shutdown_signal = signal;
1803 /* Cannot call qemu_system_shutdown_request directly because
1804 * we are in a signal handler.
1806 shutdown_requested = 1;
1807 qemu_notify_event();
1810 void qemu_system_shutdown_request(void)
1812 trace_qemu_system_shutdown_request();
1813 replay_shutdown_request();
1814 shutdown_requested = 1;
1815 qemu_notify_event();
1818 static void qemu_system_powerdown(void)
1820 qapi_event_send_powerdown(&error_abort);
1821 notifier_list_notify(&powerdown_notifiers, NULL);
1824 void qemu_system_powerdown_request(void)
1826 trace_qemu_system_powerdown_request();
1827 powerdown_requested = 1;
1828 qemu_notify_event();
1831 void qemu_register_powerdown_notifier(Notifier *notifier)
1833 notifier_list_add(&powerdown_notifiers, notifier);
1836 void qemu_system_debug_request(void)
1838 debug_requested = 1;
1839 qemu_notify_event();
1842 static bool main_loop_should_exit(void)
1845 if (qemu_debug_requested()) {
1846 vm_stop(RUN_STATE_DEBUG);
1848 if (qemu_suspend_requested()) {
1849 qemu_system_suspend();
1851 if (qemu_shutdown_requested()) {
1853 qapi_event_send_shutdown(&error_abort);
1855 vm_stop(RUN_STATE_SHUTDOWN);
1860 if (qemu_reset_requested()) {
1862 qemu_system_reset(VMRESET_REPORT);
1864 if (!runstate_check(RUN_STATE_RUNNING) &&
1865 !runstate_check(RUN_STATE_INMIGRATE)) {
1866 runstate_set(RUN_STATE_PRELAUNCH);
1869 if (qemu_wakeup_requested()) {
1871 qemu_system_reset(VMRESET_SILENT);
1872 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1873 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1875 qapi_event_send_wakeup(&error_abort);
1877 if (qemu_powerdown_requested()) {
1878 qemu_system_powerdown();
1880 if (qemu_vmstop_requested(&r)) {
1886 static void main_loop(void)
1890 #ifdef CONFIG_PROFILER
1894 nonblocking = tcg_enabled() && last_io > 0;
1895 #ifdef CONFIG_PROFILER
1896 ti = profile_getclock();
1898 last_io = main_loop_wait(nonblocking);
1899 #ifdef CONFIG_PROFILER
1900 dev_time += profile_getclock() - ti;
1902 } while (!main_loop_should_exit());
1905 static void version(void)
1907 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1908 QEMU_COPYRIGHT "\n");
1911 static void help(int exitcode)
1914 printf("usage: %s [options] [disk_image]\n\n"
1915 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1916 error_get_progname());
1918 #define QEMU_OPTIONS_GENERATE_HELP
1919 #include "qemu-options-wrapper.h"
1921 printf("\nDuring emulation, the following keys are useful:\n"
1922 "ctrl-alt-f toggle full screen\n"
1923 "ctrl-alt-n switch to virtual console 'n'\n"
1924 "ctrl-alt toggle mouse and keyboard grab\n"
1926 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1931 #define HAS_ARG 0x0001
1933 typedef struct QEMUOption {
1940 static const QEMUOption qemu_options[] = {
1941 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1942 #define QEMU_OPTIONS_GENERATE_OPTIONS
1943 #include "qemu-options-wrapper.h"
1947 typedef struct VGAInterfaceInfo {
1948 const char *opt_name; /* option name */
1949 const char *name; /* human-readable name */
1950 /* Class names indicating that support is available.
1951 * If no class is specified, the interface is always available */
1952 const char *class_names[2];
1955 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1961 .name = "standard VGA",
1962 .class_names = { "VGA", "isa-vga" },
1965 .opt_name = "cirrus",
1966 .name = "Cirrus VGA",
1967 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1970 .opt_name = "vmware",
1971 .name = "VMWare SVGA",
1972 .class_names = { "vmware-svga" },
1975 .opt_name = "virtio",
1976 .name = "Virtio VGA",
1977 .class_names = { "virtio-vga" },
1982 .class_names = { "qxl-vga" },
1986 .name = "TCX framebuffer",
1987 .class_names = { "SUNW,tcx" },
1991 .name = "CG3 framebuffer",
1992 .class_names = { "cgthree" },
1995 .opt_name = "xenfb",
1999 static bool vga_interface_available(VGAInterfaceType t)
2001 VGAInterfaceInfo *ti = &vga_interfaces[t];
2003 assert(t < VGA_TYPE_MAX);
2004 return !ti->class_names[0] ||
2005 object_class_by_name(ti->class_names[0]) ||
2006 object_class_by_name(ti->class_names[1]);
2009 static void select_vgahw(const char *p)
2014 assert(vga_interface_type == VGA_NONE);
2015 for (t = 0; t < VGA_TYPE_MAX; t++) {
2016 VGAInterfaceInfo *ti = &vga_interfaces[t];
2017 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2018 if (!vga_interface_available(t)) {
2019 error_report("%s not available", ti->name);
2022 vga_interface_type = t;
2026 if (t == VGA_TYPE_MAX) {
2028 error_report("unknown vga type: %s", p);
2032 const char *nextopt;
2034 if (strstart(opts, ",retrace=", &nextopt)) {
2036 if (strstart(opts, "dumb", &nextopt))
2037 vga_retrace_method = VGA_RETRACE_DUMB;
2038 else if (strstart(opts, "precise", &nextopt))
2039 vga_retrace_method = VGA_RETRACE_PRECISE;
2040 else goto invalid_vga;
2041 } else goto invalid_vga;
2046 typedef enum DisplayType {
2055 static DisplayType select_display(const char *p)
2058 DisplayType display = DT_DEFAULT;
2060 if (strstart(p, "sdl", &opts)) {
2064 const char *nextopt;
2066 if (strstart(opts, ",frame=", &nextopt)) {
2068 if (strstart(opts, "on", &nextopt)) {
2070 } else if (strstart(opts, "off", &nextopt)) {
2073 goto invalid_sdl_args;
2075 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2077 if (strstart(opts, "on", &nextopt)) {
2079 } else if (strstart(opts, "off", &nextopt)) {
2082 goto invalid_sdl_args;
2084 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2086 if (strstart(opts, "on", &nextopt)) {
2088 } else if (strstart(opts, "off", &nextopt)) {
2091 goto invalid_sdl_args;
2093 } else if (strstart(opts, ",window_close=", &nextopt)) {
2095 if (strstart(opts, "on", &nextopt)) {
2097 } else if (strstart(opts, "off", &nextopt)) {
2100 goto invalid_sdl_args;
2102 } else if (strstart(opts, ",gl=", &nextopt)) {
2104 if (strstart(opts, "on", &nextopt)) {
2106 } else if (strstart(opts, "off", &nextopt)) {
2109 goto invalid_sdl_args;
2113 error_report("invalid SDL option string");
2119 error_report("SDL support is disabled");
2122 } else if (strstart(p, "vnc", &opts)) {
2124 vnc_parse(opts + 1, &error_fatal);
2126 error_report("VNC requires a display argument vnc=<display>");
2129 } else if (strstart(p, "curses", &opts)) {
2130 #ifdef CONFIG_CURSES
2131 display = DT_CURSES;
2133 error_report("curses support is disabled");
2136 } else if (strstart(p, "gtk", &opts)) {
2140 const char *nextopt;
2142 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2144 if (strstart(opts, "on", &nextopt)) {
2145 grab_on_hover = true;
2146 } else if (strstart(opts, "off", &nextopt)) {
2147 grab_on_hover = false;
2149 goto invalid_gtk_args;
2151 } else if (strstart(opts, ",gl=", &nextopt)) {
2153 if (strstart(opts, "on", &nextopt)) {
2155 } else if (strstart(opts, "off", &nextopt)) {
2158 goto invalid_gtk_args;
2162 error_report("invalid GTK option string");
2168 error_report("GTK support is disabled");
2171 } else if (strstart(p, "none", &opts)) {
2174 error_report("unknown display type");
2181 static int balloon_parse(const char *arg)
2185 if (strcmp(arg, "none") == 0) {
2189 if (!strncmp(arg, "virtio", 6)) {
2190 if (arg[6] == ',') {
2191 /* have params -> parse them */
2192 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2197 /* create empty opts */
2198 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2201 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2208 char *qemu_find_file(int type, const char *name)
2214 /* Try the name as a straight path first */
2215 if (access(name, R_OK) == 0) {
2216 trace_load_file(name, name);
2217 return g_strdup(name);
2221 case QEMU_FILE_TYPE_BIOS:
2224 case QEMU_FILE_TYPE_KEYMAP:
2225 subdir = "keymaps/";
2231 for (i = 0; i < data_dir_idx; i++) {
2232 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2233 if (access(buf, R_OK) == 0) {
2234 trace_load_file(name, buf);
2242 static inline bool nonempty_str(const char *str)
2247 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2251 const char *name, *file, *str;
2252 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2254 if (fw_cfg == NULL) {
2255 error_report("fw_cfg device not available");
2258 name = qemu_opt_get(opts, "name");
2259 file = qemu_opt_get(opts, "file");
2260 str = qemu_opt_get(opts, "string");
2262 /* we need name and either a file or the content string */
2263 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2264 error_report("invalid argument(s)");
2267 if (nonempty_str(file) && nonempty_str(str)) {
2268 error_report("file and string are mutually exclusive");
2271 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2272 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2275 if (strncmp(name, "opt/", 4) != 0) {
2276 error_report("warning: externally provided fw_cfg item names "
2277 "should be prefixed with \"opt/\"");
2279 if (nonempty_str(str)) {
2280 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2281 buf = g_memdup(str, size);
2283 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2284 error_report("can't load %s", file);
2288 /* For legacy, keep user files in a specific global order. */
2289 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2290 fw_cfg_add_file(fw_cfg, name, buf, size);
2291 fw_cfg_reset_order_override(fw_cfg);
2295 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2297 return qdev_device_help(opts);
2300 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2305 dev = qdev_device_add(opts, &err);
2307 error_report_err(err);
2310 object_unref(OBJECT(dev));
2314 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2316 Error *local_err = NULL;
2318 qemu_chr_new_from_opts(opts, &local_err);
2320 error_report_err(local_err);
2326 #ifdef CONFIG_VIRTFS
2327 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2329 return qemu_fsdev_add(opts);
2333 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2336 const char *chardev;
2340 mode = qemu_opt_get(opts, "mode");
2344 if (strcmp(mode, "readline") == 0) {
2345 flags = MONITOR_USE_READLINE;
2346 } else if (strcmp(mode, "control") == 0) {
2347 flags = MONITOR_USE_CONTROL;
2349 error_report("unknown monitor mode \"%s\"", mode);
2353 if (qemu_opt_get_bool(opts, "pretty", 0))
2354 flags |= MONITOR_USE_PRETTY;
2356 if (qemu_opt_get_bool(opts, "default", 0)) {
2357 error_report("option 'default' does nothing and is deprecated");
2360 chardev = qemu_opt_get(opts, "chardev");
2361 chr = qemu_chr_find(chardev);
2363 error_report("chardev \"%s\" not found", chardev);
2367 monitor_init(chr, flags);
2371 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2373 static int monitor_device_index = 0;
2378 if (strstart(optarg, "chardev:", &p)) {
2379 snprintf(label, sizeof(label), "%s", p);
2381 snprintf(label, sizeof(label), "compat_monitor%d",
2382 monitor_device_index);
2383 opts = qemu_chr_parse_compat(label, optarg);
2385 error_report("parse error: %s", optarg);
2390 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2391 qemu_opt_set(opts, "mode", mode, &error_abort);
2392 qemu_opt_set(opts, "chardev", label, &error_abort);
2393 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2394 monitor_device_index++;
2397 struct device_config {
2399 DEV_USB, /* -usbdevice */
2401 DEV_SERIAL, /* -serial */
2402 DEV_PARALLEL, /* -parallel */
2403 DEV_VIRTCON, /* -virtioconsole */
2404 DEV_DEBUGCON, /* -debugcon */
2405 DEV_GDB, /* -gdb, -s */
2406 DEV_SCLP, /* s390 sclp */
2408 const char *cmdline;
2410 QTAILQ_ENTRY(device_config) next;
2413 static QTAILQ_HEAD(, device_config) device_configs =
2414 QTAILQ_HEAD_INITIALIZER(device_configs);
2416 static void add_device_config(int type, const char *cmdline)
2418 struct device_config *conf;
2420 conf = g_malloc0(sizeof(*conf));
2422 conf->cmdline = cmdline;
2423 loc_save(&conf->loc);
2424 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2427 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2429 struct device_config *conf;
2432 QTAILQ_FOREACH(conf, &device_configs, next) {
2433 if (conf->type != type)
2435 loc_push_restore(&conf->loc);
2436 rc = func(conf->cmdline);
2437 loc_pop(&conf->loc);
2445 static int serial_parse(const char *devname)
2447 static int index = 0;
2450 if (strcmp(devname, "none") == 0)
2452 if (index == MAX_SERIAL_PORTS) {
2453 error_report("too many serial ports");
2456 snprintf(label, sizeof(label), "serial%d", index);
2457 serial_hds[index] = qemu_chr_new(label, devname);
2458 if (!serial_hds[index]) {
2459 error_report("could not connect serial device"
2460 " to character backend '%s'", devname);
2467 static int parallel_parse(const char *devname)
2469 static int index = 0;
2472 if (strcmp(devname, "none") == 0)
2474 if (index == MAX_PARALLEL_PORTS) {
2475 error_report("too many parallel ports");
2478 snprintf(label, sizeof(label), "parallel%d", index);
2479 parallel_hds[index] = qemu_chr_new(label, devname);
2480 if (!parallel_hds[index]) {
2481 error_report("could not connect parallel device"
2482 " to character backend '%s'", devname);
2489 static int virtcon_parse(const char *devname)
2491 QemuOptsList *device = qemu_find_opts("device");
2492 static int index = 0;
2494 QemuOpts *bus_opts, *dev_opts;
2496 if (strcmp(devname, "none") == 0)
2498 if (index == MAX_VIRTIO_CONSOLES) {
2499 error_report("too many virtio consoles");
2503 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2504 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2506 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2507 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2509 snprintf(label, sizeof(label), "virtcon%d", index);
2510 virtcon_hds[index] = qemu_chr_new(label, devname);
2511 if (!virtcon_hds[index]) {
2512 error_report("could not connect virtio console"
2513 " to character backend '%s'", devname);
2516 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2522 static int sclp_parse(const char *devname)
2524 QemuOptsList *device = qemu_find_opts("device");
2525 static int index = 0;
2529 if (strcmp(devname, "none") == 0) {
2532 if (index == MAX_SCLP_CONSOLES) {
2533 error_report("too many sclp consoles");
2537 assert(arch_type == QEMU_ARCH_S390X);
2539 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2540 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2542 snprintf(label, sizeof(label), "sclpcon%d", index);
2543 sclp_hds[index] = qemu_chr_new(label, devname);
2544 if (!sclp_hds[index]) {
2545 error_report("could not connect sclp console"
2546 " to character backend '%s'", devname);
2549 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2555 static int debugcon_parse(const char *devname)
2559 if (!qemu_chr_new("debugcon", devname)) {
2562 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2564 error_report("already have a debugcon device");
2567 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2568 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2572 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2574 const MachineClass *mc1 = a, *mc2 = b;
2577 if (mc1->family == NULL) {
2578 if (mc2->family == NULL) {
2579 /* Compare standalone machine types against each other; they sort
2580 * in increasing order.
2582 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2583 object_class_get_name(OBJECT_CLASS(mc2)));
2586 /* Standalone machine types sort after families. */
2590 if (mc2->family == NULL) {
2591 /* Families sort before standalone machine types. */
2595 /* Families sort between each other alphabetically increasingly. */
2596 res = strcmp(mc1->family, mc2->family);
2601 /* Within the same family, machine types sort in decreasing order. */
2602 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2603 object_class_get_name(OBJECT_CLASS(mc1)));
2606 static MachineClass *machine_parse(const char *name)
2608 MachineClass *mc = NULL;
2609 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2612 mc = find_machine(name);
2615 g_slist_free(machines);
2618 if (name && !is_help_option(name)) {
2619 error_report("unsupported machine type");
2620 error_printf("Use -machine help to list supported machines\n");
2622 printf("Supported machines are:\n");
2623 machines = g_slist_sort(machines, machine_class_cmp);
2624 for (el = machines; el; el = el->next) {
2625 MachineClass *mc = el->data;
2627 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2629 printf("%-20s %s%s\n", mc->name, mc->desc,
2630 mc->is_default ? " (default)" : "");
2634 g_slist_free(machines);
2635 exit(!name || !is_help_option(name));
2638 void qemu_add_exit_notifier(Notifier *notify)
2640 notifier_list_add(&exit_notifiers, notify);
2643 void qemu_remove_exit_notifier(Notifier *notify)
2645 notifier_remove(notify);
2648 static void qemu_run_exit_notifiers(void)
2650 notifier_list_notify(&exit_notifiers, NULL);
2653 static bool machine_init_done;
2655 void qemu_add_machine_init_done_notifier(Notifier *notify)
2657 notifier_list_add(&machine_init_done_notifiers, notify);
2658 if (machine_init_done) {
2659 notify->notify(notify, NULL);
2663 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2665 notifier_remove(notify);
2668 static void qemu_run_machine_init_done_notifiers(void)
2670 notifier_list_notify(&machine_init_done_notifiers, NULL);
2671 machine_init_done = true;
2674 static const QEMUOption *lookup_opt(int argc, char **argv,
2675 const char **poptarg, int *poptind)
2677 const QEMUOption *popt;
2678 int optind = *poptind;
2679 char *r = argv[optind];
2682 loc_set_cmdline(argv, optind, 1);
2684 /* Treat --foo the same as -foo. */
2687 popt = qemu_options;
2690 error_report("invalid option");
2693 if (!strcmp(popt->name, r + 1))
2697 if (popt->flags & HAS_ARG) {
2698 if (optind >= argc) {
2699 error_report("requires an argument");
2702 optarg = argv[optind++];
2703 loc_set_cmdline(argv, optind - 2, 2);
2714 static MachineClass *select_machine(void)
2716 MachineClass *machine_class = find_default_machine();
2721 loc_push_none(&loc);
2723 opts = qemu_get_machine_opts();
2724 qemu_opts_loc_restore(opts);
2726 optarg = qemu_opt_get(opts, "type");
2728 machine_class = machine_parse(optarg);
2731 if (!machine_class) {
2732 error_report("No machine specified, and there is no default");
2733 error_printf("Use -machine help to list supported machines\n");
2738 return machine_class;
2741 static int machine_set_property(void *opaque,
2742 const char *name, const char *value,
2745 Object *obj = OBJECT(opaque);
2746 Error *local_err = NULL;
2749 if (strcmp(name, "type") == 0) {
2753 qom_name = g_strdup(name);
2754 for (p = qom_name; *p; p++) {
2760 object_property_parse(obj, value, qom_name, &local_err);
2764 error_report_err(local_err);
2773 * Initial object creation happens before all other
2774 * QEMU data types are created. The majority of objects
2775 * can be created at this point. The rng-egd object
2776 * cannot be created here, as it depends on the chardev
2779 static bool object_create_initial(const char *type)
2781 if (g_str_equal(type, "rng-egd")) {
2786 * return false for concrete netfilters since
2787 * they depend on netdevs already existing
2789 if (g_str_equal(type, "filter-buffer") ||
2790 g_str_equal(type, "filter-dump") ||
2791 g_str_equal(type, "filter-mirror") ||
2792 g_str_equal(type, "filter-redirector") ||
2793 g_str_equal(type, "colo-compare") ||
2794 g_str_equal(type, "filter-rewriter") ||
2795 g_str_equal(type, "filter-replay")) {
2799 /* Memory allocation by backends needs to be done
2800 * after configure_accelerator() (due to the tcg_enabled()
2801 * checks at memory_region_init_*()).
2803 * Also, allocation of large amounts of memory may delay
2804 * chardev initialization for too long, and trigger timeouts
2805 * on software that waits for a monitor socket to be created
2808 if (g_str_has_prefix(type, "memory-backend-")) {
2817 * The remainder of object creation happens after the
2818 * creation of chardev, fsdev, net clients and device data types.
2820 static bool object_create_delayed(const char *type)
2822 return !object_create_initial(type);
2826 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2830 const char *mem_str;
2831 const char *maxmem_str, *slots_str;
2832 const ram_addr_t default_ram_size = mc->default_ram_size;
2833 QemuOpts *opts = qemu_find_opts_singleton("memory");
2836 loc_push_none(&loc);
2837 qemu_opts_loc_restore(opts);
2840 mem_str = qemu_opt_get(opts, "size");
2843 error_report("missing 'size' option value");
2847 sz = qemu_opt_get_size(opts, "size", ram_size);
2849 /* Fix up legacy suffix-less format */
2850 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2851 uint64_t overflow_check = sz;
2854 if ((sz >> 20) != overflow_check) {
2855 error_report("too large 'size' option value");
2861 /* backward compatibility behaviour for case "-m 0" */
2863 sz = default_ram_size;
2866 sz = QEMU_ALIGN_UP(sz, 8192);
2868 if (ram_size != sz) {
2869 error_report("ram size too large");
2873 /* store value for the future use */
2874 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2875 *maxram_size = ram_size;
2877 maxmem_str = qemu_opt_get(opts, "maxmem");
2878 slots_str = qemu_opt_get(opts, "slots");
2879 if (maxmem_str && slots_str) {
2882 sz = qemu_opt_get_size(opts, "maxmem", 0);
2883 slots = qemu_opt_get_number(opts, "slots", 0);
2884 if (sz < ram_size) {
2885 error_report("invalid value of -m option maxmem: "
2886 "maximum memory size (0x%" PRIx64 ") must be at least "
2887 "the initial memory size (0x" RAM_ADDR_FMT ")",
2890 } else if (sz > ram_size) {
2892 error_report("invalid value of -m option: maxmem was "
2893 "specified, but no hotplug slots were specified");
2897 error_report("invalid value of -m option maxmem: "
2898 "memory slots were specified but maximum memory size "
2899 "(0x%" PRIx64 ") is equal to the initial memory size "
2900 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2906 } else if ((!maxmem_str && slots_str) ||
2907 (maxmem_str && !slots_str)) {
2908 error_report("invalid -m option value: missing "
2909 "'%s' option", slots_str ? "maxmem" : "slots");
2916 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2920 g = g_malloc0(sizeof(*g));
2921 g->driver = qemu_opt_get(opts, "driver");
2922 g->property = qemu_opt_get(opts, "property");
2923 g->value = qemu_opt_get(opts, "value");
2924 g->user_provided = true;
2925 g->errp = &error_fatal;
2926 qdev_prop_register_global(g);
2930 static int qemu_read_default_config_file(void)
2934 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2935 if (ret < 0 && ret != -ENOENT) {
2942 int main(int argc, char **argv, char **envp)
2945 int snapshot, linux_boot;
2946 const char *initrd_filename;
2947 const char *kernel_filename, *kernel_cmdline;
2948 const char *boot_order = NULL;
2949 const char *boot_once = NULL;
2951 int cyls, heads, secs, translation;
2952 QemuOpts *opts, *machine_opts;
2953 QemuOpts *hda_opts = NULL, *icount_opts = NULL, *accel_opts = NULL;
2954 QemuOptsList *olist;
2957 const char *loadvm = NULL;
2958 MachineClass *machine_class;
2959 const char *cpu_model;
2960 const char *vga_model = NULL;
2961 const char *qtest_chrdev = NULL;
2962 const char *qtest_log = NULL;
2963 const char *pid_file = NULL;
2964 const char *incoming = NULL;
2965 bool defconfig = true;
2966 bool userconfig = true;
2967 bool nographic = false;
2968 DisplayType display_type = DT_DEFAULT;
2969 int display_remote = 0;
2970 const char *log_mask = NULL;
2971 const char *log_file = NULL;
2972 char *trace_file = NULL;
2973 ram_addr_t maxram_size;
2974 uint64_t ram_slots = 0;
2975 FILE *vmstate_dump_file = NULL;
2976 Error *main_loop_err = NULL;
2978 bool list_data_dirs = false;
2980 module_call_init(MODULE_INIT_TRACE);
2982 qemu_init_cpu_list();
2983 qemu_init_cpu_loop();
2984 qemu_mutex_lock_iothread();
2986 atexit(qemu_run_exit_notifiers);
2987 error_set_progname(argv[0]);
2988 qemu_init_exec_dir(argv[0]);
2990 module_call_init(MODULE_INIT_QOM);
2991 monitor_init_qmp_commands();
2993 qemu_add_opts(&qemu_drive_opts);
2994 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2995 qemu_add_drive_opts(&qemu_common_drive_opts);
2996 qemu_add_drive_opts(&qemu_drive_opts);
2997 qemu_add_drive_opts(&bdrv_runtime_opts);
2998 qemu_add_opts(&qemu_chardev_opts);
2999 qemu_add_opts(&qemu_device_opts);
3000 qemu_add_opts(&qemu_netdev_opts);
3001 qemu_add_opts(&qemu_net_opts);
3002 qemu_add_opts(&qemu_rtc_opts);
3003 qemu_add_opts(&qemu_global_opts);
3004 qemu_add_opts(&qemu_mon_opts);
3005 qemu_add_opts(&qemu_trace_opts);
3006 qemu_add_opts(&qemu_option_rom_opts);
3007 qemu_add_opts(&qemu_machine_opts);
3008 qemu_add_opts(&qemu_accel_opts);
3009 qemu_add_opts(&qemu_mem_opts);
3010 qemu_add_opts(&qemu_smp_opts);
3011 qemu_add_opts(&qemu_boot_opts);
3012 qemu_add_opts(&qemu_sandbox_opts);
3013 qemu_add_opts(&qemu_add_fd_opts);
3014 qemu_add_opts(&qemu_object_opts);
3015 qemu_add_opts(&qemu_tpmdev_opts);
3016 qemu_add_opts(&qemu_realtime_opts);
3017 qemu_add_opts(&qemu_msg_opts);
3018 qemu_add_opts(&qemu_name_opts);
3019 qemu_add_opts(&qemu_numa_opts);
3020 qemu_add_opts(&qemu_icount_opts);
3021 qemu_add_opts(&qemu_semihosting_config_opts);
3022 qemu_add_opts(&qemu_fw_cfg_opts);
3023 module_call_init(MODULE_INIT_OPTS);
3027 if (qcrypto_init(&err) < 0) {
3028 error_reportf_err(err, "cannot initialize crypto: ");
3031 rtc_clock = QEMU_CLOCK_HOST;
3033 QLIST_INIT (&vm_change_state_head);
3034 os_setup_early_signal_handling();
3038 cyls = heads = secs = 0;
3039 translation = BIOS_ATA_TRANSLATION_AUTO;
3043 bdrv_init_with_whitelist();
3047 /* first pass of option parsing */
3049 while (optind < argc) {
3050 if (argv[optind][0] != '-') {
3054 const QEMUOption *popt;
3056 popt = lookup_opt(argc, argv, &optarg, &optind);
3057 switch (popt->index) {
3058 case QEMU_OPTION_nodefconfig:
3061 case QEMU_OPTION_nouserconfig:
3068 if (defconfig && userconfig) {
3069 if (qemu_read_default_config_file() < 0) {
3074 /* second pass of option parsing */
3079 if (argv[optind][0] != '-') {
3080 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3082 const QEMUOption *popt;
3084 popt = lookup_opt(argc, argv, &optarg, &optind);
3085 if (!(popt->arch_mask & arch_type)) {
3086 error_report("Option not supported for this target");
3089 switch(popt->index) {
3090 case QEMU_OPTION_no_kvm_irqchip: {
3091 olist = qemu_find_opts("machine");
3092 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3095 case QEMU_OPTION_cpu:
3096 /* hw initialization will check this */
3099 case QEMU_OPTION_hda:
3103 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3105 snprintf(buf, sizeof(buf),
3106 "%s,cyls=%d,heads=%d,secs=%d%s",
3107 HD_OPTS , cyls, heads, secs,
3108 translation == BIOS_ATA_TRANSLATION_LBA ?
3110 translation == BIOS_ATA_TRANSLATION_NONE ?
3111 ",trans=none" : "");
3112 drive_add(IF_DEFAULT, 0, optarg, buf);
3115 case QEMU_OPTION_hdb:
3116 case QEMU_OPTION_hdc:
3117 case QEMU_OPTION_hdd:
3118 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3121 case QEMU_OPTION_drive:
3122 if (drive_def(optarg) == NULL) {
3126 case QEMU_OPTION_set:
3127 if (qemu_set_option(optarg) != 0)
3130 case QEMU_OPTION_global:
3131 if (qemu_global_option(optarg) != 0)
3134 case QEMU_OPTION_mtdblock:
3135 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3137 case QEMU_OPTION_sd:
3138 drive_add(IF_SD, -1, optarg, SD_OPTS);
3140 case QEMU_OPTION_pflash:
3141 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3143 case QEMU_OPTION_snapshot:
3146 case QEMU_OPTION_hdachs:
3150 cyls = strtol(p, (char **)&p, 0);
3151 if (cyls < 1 || cyls > 16383)
3156 heads = strtol(p, (char **)&p, 0);
3157 if (heads < 1 || heads > 16)
3162 secs = strtol(p, (char **)&p, 0);
3163 if (secs < 1 || secs > 63)
3167 if (!strcmp(p, "large")) {
3168 translation = BIOS_ATA_TRANSLATION_LARGE;
3169 } else if (!strcmp(p, "rechs")) {
3170 translation = BIOS_ATA_TRANSLATION_RECHS;
3171 } else if (!strcmp(p, "none")) {
3172 translation = BIOS_ATA_TRANSLATION_NONE;
3173 } else if (!strcmp(p, "lba")) {
3174 translation = BIOS_ATA_TRANSLATION_LBA;
3175 } else if (!strcmp(p, "auto")) {
3176 translation = BIOS_ATA_TRANSLATION_AUTO;
3180 } else if (*p != '\0') {
3182 error_report("invalid physical CHS format");
3185 if (hda_opts != NULL) {
3186 qemu_opt_set_number(hda_opts, "cyls", cyls,
3188 qemu_opt_set_number(hda_opts, "heads", heads,
3190 qemu_opt_set_number(hda_opts, "secs", secs,
3192 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3193 qemu_opt_set(hda_opts, "trans", "large",
3195 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3196 qemu_opt_set(hda_opts, "trans", "rechs",
3198 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3199 qemu_opt_set(hda_opts, "trans", "lba",
3201 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3202 qemu_opt_set(hda_opts, "trans", "none",
3208 case QEMU_OPTION_numa:
3209 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3215 case QEMU_OPTION_display:
3216 display_type = select_display(optarg);
3218 case QEMU_OPTION_nographic:
3219 olist = qemu_find_opts("machine");
3220 qemu_opts_parse_noisily(olist, "graphics=off", false);
3222 display_type = DT_NONE;
3224 case QEMU_OPTION_curses:
3225 #ifdef CONFIG_CURSES
3226 display_type = DT_CURSES;
3228 error_report("curses support is disabled");
3232 case QEMU_OPTION_portrait:
3233 graphic_rotate = 90;
3235 case QEMU_OPTION_rotate:
3236 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3237 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3238 graphic_rotate != 180 && graphic_rotate != 270) {
3239 error_report("only 90, 180, 270 deg rotation is available");
3243 case QEMU_OPTION_kernel:
3244 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3247 case QEMU_OPTION_initrd:
3248 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3251 case QEMU_OPTION_append:
3252 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3255 case QEMU_OPTION_dtb:
3256 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3259 case QEMU_OPTION_cdrom:
3260 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3262 case QEMU_OPTION_boot:
3263 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3269 case QEMU_OPTION_fda:
3270 case QEMU_OPTION_fdb:
3271 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3274 case QEMU_OPTION_no_fd_bootchk:
3277 case QEMU_OPTION_netdev:
3279 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3283 case QEMU_OPTION_net:
3285 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3289 #ifdef CONFIG_LIBISCSI
3290 case QEMU_OPTION_iscsi:
3291 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3299 case QEMU_OPTION_tftp:
3300 error_report("The -tftp option is deprecated. "
3301 "Please use '-netdev user,tftp=...' instead.");
3302 legacy_tftp_prefix = optarg;
3304 case QEMU_OPTION_bootp:
3305 error_report("The -bootp option is deprecated. "
3306 "Please use '-netdev user,bootfile=...' instead.");
3307 legacy_bootp_filename = optarg;
3309 case QEMU_OPTION_redir:
3310 error_report("The -redir option is deprecated. "
3311 "Please use '-netdev user,hostfwd=...' instead.");
3312 if (net_slirp_redir(optarg) < 0)
3316 case QEMU_OPTION_bt:
3317 add_device_config(DEV_BT, optarg);
3319 case QEMU_OPTION_audio_help:
3323 case QEMU_OPTION_soundhw:
3324 select_soundhw (optarg);
3329 case QEMU_OPTION_version:
3334 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3341 case QEMU_OPTION_tpmdev:
3342 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3347 case QEMU_OPTION_mempath:
3350 case QEMU_OPTION_mem_prealloc:
3359 case QEMU_OPTION_DFILTER:
3360 qemu_set_dfilter_ranges(optarg, &error_fatal);
3363 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3365 case QEMU_OPTION_gdb:
3366 add_device_config(DEV_GDB, optarg);
3369 if (is_help_option(optarg)) {
3370 list_data_dirs = true;
3371 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3372 data_dir[data_dir_idx++] = optarg;
3375 case QEMU_OPTION_bios:
3376 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3379 case QEMU_OPTION_singlestep:
3386 keyboard_layout = optarg;
3388 case QEMU_OPTION_localtime:
3391 case QEMU_OPTION_vga:
3400 w = strtol(p, (char **)&p, 10);
3403 error_report("invalid resolution or depth");
3409 h = strtol(p, (char **)&p, 10);
3414 depth = strtol(p, (char **)&p, 10);
3415 if (depth != 8 && depth != 15 && depth != 16 &&
3416 depth != 24 && depth != 32)
3418 } else if (*p == '\0') {
3419 depth = graphic_depth;
3426 graphic_depth = depth;
3429 case QEMU_OPTION_echr:
3432 term_escape_char = strtol(optarg, &r, 0);
3434 printf("Bad argument to echr\n");
3437 case QEMU_OPTION_monitor:
3438 default_monitor = 0;
3439 if (strncmp(optarg, "none", 4)) {
3440 monitor_parse(optarg, "readline", false);
3443 case QEMU_OPTION_qmp:
3444 monitor_parse(optarg, "control", false);
3445 default_monitor = 0;
3447 case QEMU_OPTION_qmp_pretty:
3448 monitor_parse(optarg, "control", true);
3449 default_monitor = 0;
3451 case QEMU_OPTION_mon:
3452 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3457 default_monitor = 0;
3459 case QEMU_OPTION_chardev:
3460 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3466 case QEMU_OPTION_fsdev:
3467 olist = qemu_find_opts("fsdev");
3469 error_report("fsdev support is disabled");
3472 opts = qemu_opts_parse_noisily(olist, optarg, true);
3477 case QEMU_OPTION_virtfs: {
3480 const char *writeout, *sock_fd, *socket;
3482 olist = qemu_find_opts("virtfs");
3484 error_report("virtfs support is disabled");
3487 opts = qemu_opts_parse_noisily(olist, optarg, true);
3492 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3493 qemu_opt_get(opts, "mount_tag") == NULL) {
3494 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3497 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3498 qemu_opt_get(opts, "mount_tag"),
3501 error_report("duplicate fsdev id: %s",
3502 qemu_opt_get(opts, "mount_tag"));
3506 writeout = qemu_opt_get(opts, "writeout");
3508 #ifdef CONFIG_SYNC_FILE_RANGE
3509 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3511 error_report("writeout=immediate not supported "
3512 "on this platform");
3516 qemu_opt_set(fsdev, "fsdriver",
3517 qemu_opt_get(opts, "fsdriver"), &error_abort);
3518 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3520 qemu_opt_set(fsdev, "security_model",
3521 qemu_opt_get(opts, "security_model"),
3523 socket = qemu_opt_get(opts, "socket");
3525 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3527 sock_fd = qemu_opt_get(opts, "sock_fd");
3529 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3532 qemu_opt_set_bool(fsdev, "readonly",
3533 qemu_opt_get_bool(opts, "readonly", 0),
3535 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3537 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3538 qemu_opt_set(device, "fsdev",
3539 qemu_opt_get(opts, "mount_tag"), &error_abort);
3540 qemu_opt_set(device, "mount_tag",
3541 qemu_opt_get(opts, "mount_tag"), &error_abort);
3544 case QEMU_OPTION_virtfs_synth: {
3548 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3551 error_report("duplicate option: %s", "virtfs_synth");
3554 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3556 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3558 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3559 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3560 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3563 case QEMU_OPTION_serial:
3564 add_device_config(DEV_SERIAL, optarg);
3566 if (strncmp(optarg, "mon:", 4) == 0) {
3567 default_monitor = 0;
3570 case QEMU_OPTION_watchdog:
3572 error_report("only one watchdog option may be given");
3577 case QEMU_OPTION_watchdog_action:
3578 if (select_watchdog_action(optarg) == -1) {
3579 error_report("unknown -watchdog-action parameter");
3583 case QEMU_OPTION_virtiocon:
3584 add_device_config(DEV_VIRTCON, optarg);
3585 default_virtcon = 0;
3586 if (strncmp(optarg, "mon:", 4) == 0) {
3587 default_monitor = 0;
3590 case QEMU_OPTION_parallel:
3591 add_device_config(DEV_PARALLEL, optarg);
3592 default_parallel = 0;
3593 if (strncmp(optarg, "mon:", 4) == 0) {
3594 default_monitor = 0;
3597 case QEMU_OPTION_debugcon:
3598 add_device_config(DEV_DEBUGCON, optarg);
3600 case QEMU_OPTION_loadvm:
3603 case QEMU_OPTION_full_screen:
3606 case QEMU_OPTION_no_frame:
3609 case QEMU_OPTION_alt_grab:
3612 case QEMU_OPTION_ctrl_grab:
3615 case QEMU_OPTION_no_quit:
3618 case QEMU_OPTION_sdl:
3620 display_type = DT_SDL;
3623 error_report("SDL support is disabled");
3626 case QEMU_OPTION_pidfile:
3629 case QEMU_OPTION_win2k_hack:
3630 win2k_install_hack = 1;
3632 case QEMU_OPTION_rtc_td_hack: {
3633 static GlobalProperty slew_lost_ticks = {
3634 .driver = "mc146818rtc",
3635 .property = "lost_tick_policy",
3639 qdev_prop_register_global(&slew_lost_ticks);
3642 case QEMU_OPTION_acpitable:
3643 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3648 acpi_table_add(opts, &error_fatal);
3650 case QEMU_OPTION_smbios:
3651 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3656 smbios_entry_add(opts, &error_fatal);
3658 case QEMU_OPTION_fwcfg:
3659 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3665 case QEMU_OPTION_enable_kvm:
3666 olist = qemu_find_opts("machine");
3667 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3669 case QEMU_OPTION_enable_hax:
3670 olist = qemu_find_opts("machine");
3671 qemu_opts_parse_noisily(olist, "accel=hax", false);
3674 case QEMU_OPTION_machine:
3675 olist = qemu_find_opts("machine");
3676 opts = qemu_opts_parse_noisily(olist, optarg, true);
3681 case QEMU_OPTION_no_kvm:
3682 olist = qemu_find_opts("machine");
3683 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3685 case QEMU_OPTION_no_kvm_pit: {
3686 error_report("warning: ignoring deprecated option");
3689 case QEMU_OPTION_no_kvm_pit_reinjection: {
3690 static GlobalProperty kvm_pit_lost_tick_policy = {
3691 .driver = "kvm-pit",
3692 .property = "lost_tick_policy",
3696 error_report("warning: deprecated, replaced by "
3697 "-global kvm-pit.lost_tick_policy=discard");
3698 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3701 case QEMU_OPTION_accel:
3702 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3704 optarg = qemu_opt_get(accel_opts, "accel");
3706 olist = qemu_find_opts("machine");
3707 if (strcmp("kvm", optarg) == 0) {
3708 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3709 } else if (strcmp("xen", optarg) == 0) {
3710 qemu_opts_parse_noisily(olist, "accel=xen", false);
3711 } else if (strcmp("tcg", optarg) == 0) {
3712 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3714 if (!is_help_option(optarg)) {
3715 error_printf("Unknown accelerator: %s", optarg);
3717 error_printf("Supported accelerators: kvm, xen, tcg\n");
3721 case QEMU_OPTION_usb:
3722 olist = qemu_find_opts("machine");
3723 qemu_opts_parse_noisily(olist, "usb=on", false);
3725 case QEMU_OPTION_usbdevice:
3726 olist = qemu_find_opts("machine");
3727 qemu_opts_parse_noisily(olist, "usb=on", false);
3728 add_device_config(DEV_USB, optarg);
3730 case QEMU_OPTION_device:
3731 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3736 case QEMU_OPTION_smp:
3737 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3742 case QEMU_OPTION_vnc:
3743 vnc_parse(optarg, &error_fatal);
3745 case QEMU_OPTION_no_acpi:
3748 case QEMU_OPTION_no_hpet:
3751 case QEMU_OPTION_balloon:
3752 if (balloon_parse(optarg) < 0) {
3753 error_report("unknown -balloon argument %s", optarg);
3757 case QEMU_OPTION_no_reboot:
3760 case QEMU_OPTION_no_shutdown:
3763 case QEMU_OPTION_show_cursor:
3766 case QEMU_OPTION_uuid:
3767 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3768 error_report("failed to parse UUID string: wrong format");
3771 qemu_uuid_set = true;
3773 case QEMU_OPTION_option_rom:
3774 if (nb_option_roms >= MAX_OPTION_ROMS) {
3775 error_report("too many option ROMs");
3778 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3783 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3784 option_rom[nb_option_roms].bootindex =
3785 qemu_opt_get_number(opts, "bootindex", -1);
3786 if (!option_rom[nb_option_roms].name) {
3787 error_report("Option ROM file is not specified");
3792 case QEMU_OPTION_semihosting:
3793 semihosting.enabled = true;
3794 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3796 case QEMU_OPTION_semihosting_config:
3797 semihosting.enabled = true;
3798 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3801 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3803 const char *target = qemu_opt_get(opts, "target");
3804 if (target != NULL) {
3805 if (strcmp("native", target) == 0) {
3806 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3807 } else if (strcmp("gdb", target) == 0) {
3808 semihosting.target = SEMIHOSTING_TARGET_GDB;
3809 } else if (strcmp("auto", target) == 0) {
3810 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3812 error_report("unsupported semihosting-config %s",
3817 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3819 /* Set semihosting argument count and vector */
3820 qemu_opt_foreach(opts, add_semihosting_arg,
3821 &semihosting, NULL);
3823 error_report("unsupported semihosting-config %s", optarg);
3827 case QEMU_OPTION_tdf:
3828 error_report("warning: ignoring deprecated option");
3830 case QEMU_OPTION_name:
3831 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3837 case QEMU_OPTION_prom_env:
3838 if (nb_prom_envs >= MAX_PROM_ENVS) {
3839 error_report("too many prom variables");
3842 prom_envs[nb_prom_envs] = optarg;
3845 case QEMU_OPTION_old_param:
3848 case QEMU_OPTION_clock:
3849 /* Clock options no longer exist. Keep this option for
3850 * backward compatibility.
3853 case QEMU_OPTION_startdate:
3854 configure_rtc_date_offset(optarg, 1);
3856 case QEMU_OPTION_rtc:
3857 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3862 configure_rtc(opts);
3864 case QEMU_OPTION_tb_size:
3865 tcg_tb_size = strtol(optarg, NULL, 0);
3866 if (tcg_tb_size < 0) {
3870 case QEMU_OPTION_icount:
3871 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3877 case QEMU_OPTION_incoming:
3879 runstate_set(RUN_STATE_INMIGRATE);
3883 case QEMU_OPTION_only_migratable:
3884 only_migratable = 1;
3886 case QEMU_OPTION_nodefaults:
3889 case QEMU_OPTION_xen_domid:
3890 if (!(xen_available())) {
3891 error_report("Option not supported for this target");
3894 xen_domid = atoi(optarg);
3896 case QEMU_OPTION_xen_create:
3897 if (!(xen_available())) {
3898 error_report("Option not supported for this target");
3901 xen_mode = XEN_CREATE;
3903 case QEMU_OPTION_xen_attach:
3904 if (!(xen_available())) {
3905 error_report("Option not supported for this target");
3908 xen_mode = XEN_ATTACH;
3910 case QEMU_OPTION_trace:
3912 trace_file = trace_opt_parse(optarg);
3914 case QEMU_OPTION_readconfig:
3916 int ret = qemu_read_config_file(optarg);
3918 error_report("read config %s: %s", optarg,
3924 case QEMU_OPTION_spice:
3925 olist = qemu_find_opts("spice");
3927 error_report("spice support is disabled");
3930 opts = qemu_opts_parse_noisily(olist, optarg, false);
3936 case QEMU_OPTION_writeconfig:
3939 if (strcmp(optarg, "-") == 0) {
3942 fp = fopen(optarg, "w");
3944 error_report("open %s: %s", optarg,
3949 qemu_config_write(fp);
3955 case QEMU_OPTION_qtest:
3956 qtest_chrdev = optarg;
3958 case QEMU_OPTION_qtest_log:
3961 case QEMU_OPTION_sandbox:
3962 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3968 case QEMU_OPTION_add_fd:
3970 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3976 error_report("File descriptor passing is disabled on this "
3981 case QEMU_OPTION_object:
3982 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3988 case QEMU_OPTION_realtime:
3989 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3994 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3996 case QEMU_OPTION_msg:
3997 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4002 configure_msg(opts);
4004 case QEMU_OPTION_dump_vmstate:
4005 if (vmstate_dump_file) {
4006 error_report("only one '-dump-vmstate' "
4007 "option may be given");
4010 vmstate_dump_file = fopen(optarg, "w");
4011 if (vmstate_dump_file == NULL) {
4012 error_report("open %s: %s", optarg, strerror(errno));
4017 os_parse_cmd_args(popt->index, optarg);
4022 * Clear error location left behind by the loop.
4023 * Best done right after the loop. Do not insert code here!
4027 replay_configure(icount_opts);
4029 qemu_tcg_configure(accel_opts, &error_fatal);
4031 machine_class = select_machine();
4033 set_memory_options(&ram_slots, &maxram_size, machine_class);
4037 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4038 error_report("could not acquire pid file: %s", strerror(errno));
4042 if (qemu_init_main_loop(&main_loop_err)) {
4043 error_report_err(main_loop_err);
4047 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4048 parse_sandbox, NULL, NULL)) {
4052 if (qemu_opts_foreach(qemu_find_opts("name"),
4053 parse_name, NULL, NULL)) {
4058 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4059 parse_add_fd, NULL, NULL)) {
4063 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4064 cleanup_add_fd, NULL, NULL)) {
4069 current_machine = MACHINE(object_new(object_class_get_name(
4070 OBJECT_CLASS(machine_class))));
4071 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4074 object_property_add_child(object_get_root(), "machine",
4075 OBJECT(current_machine), &error_abort);
4077 if (machine_class->minimum_page_bits) {
4078 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4079 /* This would be a board error: specifying a minimum smaller than
4080 * a target's compile-time fixed setting.
4082 g_assert_not_reached();
4086 cpu_exec_init_all();
4088 if (machine_class->hw_version) {
4089 qemu_set_hw_version(machine_class->hw_version);
4092 if (cpu_model && is_help_option(cpu_model)) {
4093 list_cpus(stdout, &fprintf, cpu_model);
4097 if (!trace_init_backends()) {
4100 trace_init_file(trace_file);
4102 /* Open the logfile at this point and set the log mask if necessary.
4105 qemu_set_log_filename(log_file, &error_fatal);
4110 mask = qemu_str_to_log_mask(log_mask);
4112 qemu_print_log_usage(stdout);
4120 /* If no data_dir is specified then try to find it relative to the
4122 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4123 data_dir[data_dir_idx] = os_find_datadir();
4124 if (data_dir[data_dir_idx] != NULL) {
4128 /* If all else fails use the install path specified when building. */
4129 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4130 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4133 /* -L help lists the data directories and exits. */
4134 if (list_data_dirs) {
4135 for (i = 0; i < data_dir_idx; i++) {
4136 printf("%s\n", data_dir[i]);
4141 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4143 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4144 if (max_cpus > machine_class->max_cpus) {
4145 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4146 "supported by machine '%s' (%d)", max_cpus,
4147 machine_class->name, machine_class->max_cpus);
4152 * Get the default machine options from the machine if it is not already
4153 * specified either by the configuration file or by the command line.
4155 if (machine_class->default_machine_opts) {
4156 qemu_opts_set_defaults(qemu_find_opts("machine"),
4157 machine_class->default_machine_opts, 0);
4160 qemu_opts_foreach(qemu_find_opts("device"),
4161 default_driver_check, NULL, NULL);
4162 qemu_opts_foreach(qemu_find_opts("global"),
4163 default_driver_check, NULL, NULL);
4165 if (!vga_model && !default_vga) {
4166 vga_interface_type = VGA_DEVICE;
4168 if (!has_defaults || machine_class->no_serial) {
4171 if (!has_defaults || machine_class->no_parallel) {
4172 default_parallel = 0;
4174 if (!has_defaults || !machine_class->use_virtcon) {
4175 default_virtcon = 0;
4177 if (!has_defaults || !machine_class->use_sclp) {
4180 if (!has_defaults || machine_class->no_floppy) {
4183 if (!has_defaults || machine_class->no_cdrom) {
4186 if (!has_defaults || machine_class->no_sdcard) {
4189 if (!has_defaults) {
4190 default_monitor = 0;
4195 if (is_daemonized()) {
4196 /* According to documentation and historically, -nographic redirects
4197 * serial port, parallel port and monitor to stdio, which does not work
4198 * with -daemonize. We can redirect these to null instead, but since
4199 * -nographic is legacy, let's just error out.
4200 * We disallow -nographic only if all other ports are not redirected
4201 * explicitly, to not break existing legacy setups which uses
4202 * -nographic _and_ redirects all ports explicitly - this is valid
4203 * usage, -nographic is just a no-op in this case.
4206 && (default_parallel || default_serial
4207 || default_monitor || default_virtcon)) {
4208 error_report("-nographic cannot be used with -daemonize");
4211 #ifdef CONFIG_CURSES
4212 if (display_type == DT_CURSES) {
4213 error_report("curses display cannot be used with -daemonize");
4220 if (default_parallel)
4221 add_device_config(DEV_PARALLEL, "null");
4222 if (default_serial && default_monitor) {
4223 add_device_config(DEV_SERIAL, "mon:stdio");
4224 } else if (default_virtcon && default_monitor) {
4225 add_device_config(DEV_VIRTCON, "mon:stdio");
4226 } else if (default_sclp && default_monitor) {
4227 add_device_config(DEV_SCLP, "mon:stdio");
4230 add_device_config(DEV_SERIAL, "stdio");
4231 if (default_virtcon)
4232 add_device_config(DEV_VIRTCON, "stdio");
4234 add_device_config(DEV_SCLP, "stdio");
4236 if (default_monitor)
4237 monitor_parse("stdio", "readline", false);
4241 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4242 if (default_parallel)
4243 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4244 if (default_monitor)
4245 monitor_parse("vc:80Cx24C", "readline", false);
4246 if (default_virtcon)
4247 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4249 add_device_config(DEV_SCLP, "vc:80Cx24C");
4253 #if defined(CONFIG_VNC)
4254 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4258 if (display_type == DT_DEFAULT && !display_remote) {
4259 #if defined(CONFIG_GTK)
4260 display_type = DT_GTK;
4261 #elif defined(CONFIG_SDL)
4262 display_type = DT_SDL;
4263 #elif defined(CONFIG_COCOA)
4264 display_type = DT_COCOA;
4265 #elif defined(CONFIG_VNC)
4266 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4268 display_type = DT_NONE;
4272 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4273 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4274 "for SDL, ignoring option");
4276 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4277 error_report("-no-quit is only valid for GTK and SDL, "
4281 if (display_type == DT_GTK) {
4282 early_gtk_display_init(request_opengl);
4285 if (display_type == DT_SDL) {
4286 sdl_display_early_init(request_opengl);
4289 qemu_console_early_init();
4291 if (request_opengl == 1 && display_opengl == 0) {
4292 #if defined(CONFIG_OPENGL)
4293 error_report("OpenGL is not supported by the display");
4295 error_report("OpenGL support is disabled");
4303 if (qemu_opts_foreach(qemu_find_opts("object"),
4304 user_creatable_add_opts_foreach,
4305 object_create_initial, NULL)) {
4309 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4310 chardev_init_func, NULL, NULL)) {
4314 #ifdef CONFIG_VIRTFS
4315 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4316 fsdev_init_func, NULL, NULL)) {
4321 if (qemu_opts_foreach(qemu_find_opts("device"),
4322 device_help_func, NULL, NULL)) {
4326 machine_opts = qemu_get_machine_opts();
4327 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4329 object_unref(OBJECT(current_machine));
4333 configure_accelerator(current_machine);
4336 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4339 machine_opts = qemu_get_machine_opts();
4340 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4341 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4342 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4343 bios_name = qemu_opt_get(machine_opts, "firmware");
4345 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4347 boot_order = qemu_opt_get(opts, "order");
4349 validate_bootdevices(boot_order, &error_fatal);
4352 boot_once = qemu_opt_get(opts, "once");
4354 validate_bootdevices(boot_once, &error_fatal);
4357 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4358 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4362 boot_order = machine_class->default_boot_order;
4365 if (!kernel_cmdline) {
4366 kernel_cmdline = "";
4367 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4370 linux_boot = (kernel_filename != NULL);
4372 if (!linux_boot && *kernel_cmdline != '\0') {
4373 error_report("-append only allowed with -kernel option");
4377 if (!linux_boot && initrd_filename != NULL) {
4378 error_report("-initrd only allowed with -kernel option");
4382 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4383 /* fall back to the -kernel/-append */
4384 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4387 os_set_line_buffering();
4389 /* spice needs the timers to be initialized by this point */
4394 if (!tcg_enabled()) {
4395 error_report("-icount is not allowed with hardware virtualization");
4397 } else if (qemu_tcg_mttcg_enabled()) {
4398 error_report("-icount does not currently work with MTTCG");
4401 configure_icount(icount_opts, &error_abort);
4402 qemu_opts_del(icount_opts);
4406 QemuOptsList *net = qemu_find_opts("net");
4407 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4409 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4415 if (net_init_clients() < 0) {
4419 if (qemu_opts_foreach(qemu_find_opts("object"),
4420 user_creatable_add_opts_foreach,
4421 object_create_delayed, NULL)) {
4426 if (tpm_init() < 0) {
4431 /* init the bluetooth world */
4432 if (foreach_device_config(DEV_BT, bt_parse))
4435 if (!xen_enabled()) {
4436 /* On 32-bit hosts, QEMU is limited by virtual address space */
4437 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4438 error_report("at most 2047 MB RAM can be simulated");
4446 /* If the currently selected machine wishes to override the units-per-bus
4447 * property of its default HBA interface type, do so now. */
4448 if (machine_class->units_per_default_bus) {
4449 override_max_devs(machine_class->block_default_type,
4450 machine_class->units_per_default_bus);
4453 /* open the virtual block devices */
4454 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4455 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4458 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4459 &machine_class->block_default_type, NULL)) {
4463 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4465 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4466 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4468 parse_numa_opts(machine_class);
4470 if (qemu_opts_foreach(qemu_find_opts("mon"),
4471 mon_init_func, NULL, NULL)) {
4475 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4477 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4479 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4481 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4484 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4487 /* If no default VGA is requested, the default is "none". */
4489 if (machine_class->default_display) {
4490 vga_model = machine_class->default_display;
4491 } else if (vga_interface_available(VGA_CIRRUS)) {
4492 vga_model = "cirrus";
4493 } else if (vga_interface_available(VGA_STD)) {
4498 select_vgahw(vga_model);
4502 i = select_watchdog(watchdog);
4504 exit (i == 1 ? 1 : 0);
4507 machine_register_compat_props(current_machine);
4509 qemu_opts_foreach(qemu_find_opts("global"),
4510 global_init_func, NULL, NULL);
4512 /* This checkpoint is required by replay to separate prior clock
4513 reading from the other reads, because timer polling functions query
4514 clock values from the log. */
4515 replay_checkpoint(CHECKPOINT_INIT);
4516 qdev_machine_init();
4518 current_machine->ram_size = ram_size;
4519 current_machine->maxram_size = maxram_size;
4520 current_machine->ram_slots = ram_slots;
4521 current_machine->boot_order = boot_order;
4522 current_machine->cpu_model = cpu_model;
4524 machine_class->init(current_machine);
4530 if (hax_enabled()) {
4534 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4535 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4539 /* init USB devices */
4540 if (machine_usb(current_machine)) {
4541 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4545 /* Check if IGD GFX passthrough. */
4548 /* init generic devices */
4549 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4550 if (qemu_opts_foreach(qemu_find_opts("device"),
4551 device_init_func, NULL, NULL)) {
4555 cpu_synchronize_all_post_init();
4557 numa_post_machine_init();
4559 rom_reset_order_override();
4562 * Create frontends for -drive if=scsi leftovers.
4563 * Normally, frontends for -drive get created by machine
4564 * initialization for onboard SCSI HBAs. However, we create a few
4565 * more ever since SCSI qdevification, but this is pretty much an
4566 * implementation accident, and deprecated.
4568 scsi_legacy_handle_cmdline();
4570 /* Did we create any drives that we failed to create a device for? */
4571 drive_check_orphaned();
4573 /* Don't warn about the default network setup that you get if
4574 * no command line -net or -netdev options are specified. There
4575 * are two cases that we would otherwise complain about:
4576 * (1) board doesn't support a NIC but the implicit "-net nic"
4578 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4579 * sets up a nic that isn't connected to anything.
4582 net_check_clients();
4587 qemu_boot_set(boot_once, &error_fatal);
4588 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4591 ds = init_displaystate();
4593 /* init local displays */
4594 switch (display_type) {
4596 curses_display_init(ds, full_screen);
4599 sdl_display_init(ds, full_screen, no_frame);
4602 cocoa_display_init(ds, full_screen);
4605 gtk_display_init(ds, full_screen, grab_on_hover);
4611 /* must be after terminal init, SDL library changes signal handlers */
4612 os_setup_signal_handling();
4614 /* init remote displays */
4616 qemu_opts_foreach(qemu_find_opts("vnc"),
4617 vnc_init_func, NULL, NULL);
4621 qemu_spice_display_init();
4624 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4628 qdev_machine_creation_done();
4630 /* TODO: once all bus devices are qdevified, this should be done
4631 * when bus is created by qdev.c */
4632 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4633 qemu_run_machine_init_done_notifiers();
4635 if (rom_check_and_register_reset() != 0) {
4636 error_report("rom check and register reset failed");
4642 /* This checkpoint is required by replay to separate prior clock
4643 reading from the other reads, because timer polling functions query
4644 clock values from the log. */
4645 replay_checkpoint(CHECKPOINT_RESET);
4646 qemu_system_reset(VMRESET_SILENT);
4647 register_global_state();
4648 if (replay_mode != REPLAY_MODE_NONE) {
4649 replay_vmstate_init();
4650 } else if (loadvm) {
4651 if (load_vmstate(loadvm) < 0) {
4656 qdev_prop_check_globals();
4657 if (vmstate_dump_file) {
4659 dump_vmstate_json_to_file(vmstate_dump_file);
4664 Error *local_err = NULL;
4665 qemu_start_incoming_migration(incoming, &local_err);
4667 error_reportf_err(local_err, "-incoming %s: ", incoming);
4670 } else if (autostart) {
4677 replay_disable_events();
4678 iothread_stop_all();
4684 /* vhost-user must be cleaned up before chardevs. */