4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
40 #if defined(__APPLE__) || defined(main)
42 int qemu_main(int argc, char **argv, char **envp);
43 int main(int argc, char **argv)
45 return qemu_main(argc, argv, NULL);
48 #define main qemu_main
50 #endif /* CONFIG_SDL */
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/firmware/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/loader.h"
71 #include "monitor/qdev.h"
72 #include "sysemu/bt.h"
74 #include "net/slirp.h"
75 #include "monitor/monitor.h"
76 #include "ui/console.h"
78 #include "sysemu/sysemu.h"
79 #include "sysemu/numa.h"
80 #include "exec/gdbstub.h"
81 #include "qemu/timer.h"
82 #include "chardev/char.h"
83 #include "qemu/bitmap.h"
85 #include "sysemu/blockdev.h"
86 #include "hw/block/block.h"
87 #include "migration/misc.h"
88 #include "migration/snapshot.h"
89 #include "migration/global_state.h"
90 #include "sysemu/tpm.h"
91 #include "sysemu/dma.h"
92 #include "hw/audio/soundhw.h"
93 #include "audio/audio.h"
94 #include "sysemu/cpus.h"
95 #include "migration/colo.h"
96 #include "migration/postcopy-ram.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qemu/main-loop.h"
105 #include "fsdev/qemu-fsdev.h"
107 #include "sysemu/qtest.h"
109 #include "disas/disas.h"
111 #include "trace-root.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/arch_init.h"
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qapi/clone-visitor.h"
120 #include "qom/object_interfaces.h"
121 #include "hw/semihosting/semihost.h"
122 #include "crypto/init.h"
123 #include "sysemu/replay.h"
124 #include "qapi/qapi-events-run-state.h"
125 #include "qapi/qapi-visit-block-core.h"
126 #include "qapi/qapi-visit-ui.h"
127 #include "qapi/qapi-commands-block-core.h"
128 #include "qapi/qapi-commands-run-state.h"
129 #include "qapi/qapi-commands-ui.h"
130 #include "qapi/qmp/qerror.h"
131 #include "sysemu/iothread.h"
132 #include "qemu/guest-random.h"
134 #define MAX_VIRTIO_CONSOLES 1
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 const char* keyboard_layout = NULL;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
148 NICInfo nd_table[MAX_NICS];
154 } rtc_base_type = RTC_BASE_UTC;
155 static time_t rtc_ref_start_datetime;
156 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
157 static int rtc_host_datetime_offset = -1; /* valid & used only with
159 QEMUClockType rtc_clock;
160 int vga_interface_type = VGA_NONE;
161 static DisplayOptions dpy;
162 static int num_serial_hds;
163 static Chardev **serial_hds;
164 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
165 int win2k_install_hack = 0;
167 int acpi_enabled = 1;
170 static int no_reboot;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
178 const char *qemu_name;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
185 uint8_t *boot_splash_filedata;
186 int only_migratable; /* turn it off unless user states otherwise */
187 bool wakeup_suspend_enabled;
189 int icount_align_option;
191 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
205 enum xen_mode xen_mode = XEN_EMULATE;
206 bool xen_domid_restrict;
208 static int has_defaults = 1;
209 static int default_serial = 1;
210 static int default_parallel = 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 = "VGA", .flag = &default_vga },
232 { .driver = "isa-vga", .flag = &default_vga },
233 { .driver = "cirrus-vga", .flag = &default_vga },
234 { .driver = "isa-cirrus-vga", .flag = &default_vga },
235 { .driver = "vmware-svga", .flag = &default_vga },
236 { .driver = "qxl-vga", .flag = &default_vga },
237 { .driver = "virtio-vga", .flag = &default_vga },
238 { .driver = "ati-vga", .flag = &default_vga },
239 { .driver = "vhost-user-vga", .flag = &default_vga },
242 static QemuOptsList qemu_rtc_opts = {
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
249 .type = QEMU_OPT_STRING,
252 .type = QEMU_OPT_STRING,
255 .type = QEMU_OPT_STRING,
257 { /* end of list */ }
261 static QemuOptsList qemu_option_rom_opts = {
262 .name = "option-rom",
263 .implied_opt_name = "romfile",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
268 .type = QEMU_OPT_NUMBER,
271 .type = QEMU_OPT_STRING,
273 { /* end of list */ }
277 static QemuOptsList qemu_machine_opts = {
279 .implied_opt_name = "type",
281 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
284 * no elements => accept any
285 * sanity checking will happen later
286 * when setting machine properties
292 static QemuOptsList qemu_accel_opts = {
294 .implied_opt_name = "accel",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
300 .type = QEMU_OPT_STRING,
301 .help = "Select the type of accelerator",
305 .type = QEMU_OPT_STRING,
306 .help = "Enable/disable multi-threaded TCG",
308 { /* end of list */ }
312 static QemuOptsList qemu_boot_opts = {
314 .implied_opt_name = "order",
316 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
320 .type = QEMU_OPT_STRING,
323 .type = QEMU_OPT_STRING,
326 .type = QEMU_OPT_BOOL,
329 .type = QEMU_OPT_STRING,
331 .name = "splash-time",
332 .type = QEMU_OPT_NUMBER,
334 .name = "reboot-timeout",
335 .type = QEMU_OPT_NUMBER,
338 .type = QEMU_OPT_BOOL,
344 static QemuOptsList qemu_add_fd_opts = {
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
350 .type = QEMU_OPT_NUMBER,
351 .help = "file descriptor of which a duplicate is added to fd set",
354 .type = QEMU_OPT_NUMBER,
355 .help = "ID of the fd set to add fd to",
358 .type = QEMU_OPT_STRING,
359 .help = "free-form string used to describe fd",
361 { /* end of list */ }
365 static QemuOptsList qemu_object_opts = {
367 .implied_opt_name = "qom-type",
368 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
374 static QemuOptsList qemu_tpmdev_opts = {
376 .implied_opt_name = "type",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
379 /* options are defined in the TPM backends */
380 { /* end of list */ }
384 static QemuOptsList qemu_realtime_opts = {
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
390 .type = QEMU_OPT_BOOL,
392 { /* end of list */ }
396 static QemuOptsList qemu_overcommit_opts = {
397 .name = "overcommit",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
402 .type = QEMU_OPT_BOOL,
406 .type = QEMU_OPT_BOOL,
408 { /* end of list */ }
412 static QemuOptsList qemu_msg_opts = {
414 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
418 .type = QEMU_OPT_BOOL,
420 { /* end of list */ }
424 static QemuOptsList qemu_name_opts = {
426 .implied_opt_name = "guest",
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
432 .type = QEMU_OPT_STRING,
433 .help = "Sets the name of the guest.\n"
434 "This name will be displayed in the SDL window caption.\n"
435 "The name will also be used for the VNC server",
438 .type = QEMU_OPT_STRING,
439 .help = "Sets the name of the QEMU process, as shown in top etc",
441 .name = "debug-threads",
442 .type = QEMU_OPT_BOOL,
443 .help = "When enabled, name the individual threads; defaults off.\n"
444 "NOTE: The thread names are for debugging and not a\n"
447 { /* End of list */ }
451 static QemuOptsList qemu_mem_opts = {
453 .implied_opt_name = "size",
454 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
459 .type = QEMU_OPT_SIZE,
463 .type = QEMU_OPT_NUMBER,
467 .type = QEMU_OPT_SIZE,
469 { /* end of list */ }
473 static QemuOptsList qemu_icount_opts = {
475 .implied_opt_name = "shift",
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
481 .type = QEMU_OPT_STRING,
484 .type = QEMU_OPT_BOOL,
487 .type = QEMU_OPT_BOOL,
490 .type = QEMU_OPT_STRING,
493 .type = QEMU_OPT_STRING,
495 .name = "rrsnapshot",
496 .type = QEMU_OPT_STRING,
498 { /* end of list */ }
502 static QemuOptsList qemu_fw_cfg_opts = {
504 .implied_opt_name = "name",
505 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
509 .type = QEMU_OPT_STRING,
510 .help = "Sets the fw_cfg name of the blob to be inserted",
513 .type = QEMU_OPT_STRING,
514 .help = "Sets the name of the file from which "
515 "the fw_cfg blob will be loaded",
518 .type = QEMU_OPT_STRING,
519 .help = "Sets content of the blob to be inserted from a string",
521 { /* end of list */ }
526 * Get machine options
528 * Returns: machine options (never null).
530 QemuOpts *qemu_get_machine_opts(void)
532 return qemu_find_opts_singleton("machine");
535 const char *qemu_get_vm_name(void)
540 static void res_free(void)
542 g_free(boot_splash_filedata);
543 boot_splash_filedata = NULL;
546 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
548 const char *driver = qemu_opt_get(opts, "driver");
553 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
554 if (strcmp(default_list[i].driver, driver) != 0)
556 *(default_list[i].flag) = 0;
561 /***********************************************************/
564 static RunState current_run_state = RUN_STATE_PRECONFIG;
566 /* We use RUN_STATE__MAX but any invalid value will do */
567 static RunState vmstop_requested = RUN_STATE__MAX;
568 static QemuMutex vmstop_lock;
573 } RunStateTransition;
575 static const RunStateTransition runstate_transitions_def[] = {
577 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
578 /* Early switch to inmigrate state to allow -incoming CLI option work
579 * as it used to. TODO: delay actual switching to inmigrate state to
580 * the point after machine is built and remove this hack.
582 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
584 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
585 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
588 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
591 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
593 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
595 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
596 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
598 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
599 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
606 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
609 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
610 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
612 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_PAUSED, RUN_STATE_COLO},
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
619 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
629 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
630 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_COLO, RUN_STATE_RUNNING },
634 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
635 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
637 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
638 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
641 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
642 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
643 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
644 { RUN_STATE_RUNNING, RUN_STATE_COLO},
646 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
652 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
653 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
654 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
655 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
656 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
657 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
659 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
660 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
662 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
668 { RUN_STATE__MAX, RUN_STATE__MAX },
671 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
673 bool runstate_check(RunState state)
675 return current_run_state == state;
678 bool runstate_store(char *str, size_t size)
680 const char *state = RunState_str(current_run_state);
681 size_t len = strlen(state) + 1;
686 memcpy(str, state, len);
690 static void runstate_init(void)
692 const RunStateTransition *p;
694 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
695 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
696 runstate_valid_transitions[p->from][p->to] = true;
699 qemu_mutex_init(&vmstop_lock);
702 /* This function will abort() on invalid state transitions */
703 void runstate_set(RunState new_state)
705 assert(new_state < RUN_STATE__MAX);
707 trace_runstate_set(current_run_state, RunState_str(current_run_state),
708 new_state, RunState_str(new_state));
710 if (current_run_state == new_state) {
714 if (!runstate_valid_transitions[current_run_state][new_state]) {
715 error_report("invalid runstate transition: '%s' -> '%s'",
716 RunState_str(current_run_state),
717 RunState_str(new_state));
721 current_run_state = new_state;
724 int runstate_is_running(void)
726 return runstate_check(RUN_STATE_RUNNING);
729 bool runstate_needs_reset(void)
731 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
732 runstate_check(RUN_STATE_SHUTDOWN);
735 StatusInfo *qmp_query_status(Error **errp)
737 StatusInfo *info = g_malloc0(sizeof(*info));
739 info->running = runstate_is_running();
740 info->singlestep = singlestep;
741 info->status = current_run_state;
746 bool qemu_vmstop_requested(RunState *r)
748 qemu_mutex_lock(&vmstop_lock);
749 *r = vmstop_requested;
750 vmstop_requested = RUN_STATE__MAX;
751 qemu_mutex_unlock(&vmstop_lock);
752 return *r < RUN_STATE__MAX;
755 void qemu_system_vmstop_request_prepare(void)
757 qemu_mutex_lock(&vmstop_lock);
760 void qemu_system_vmstop_request(RunState state)
762 vmstop_requested = state;
763 qemu_mutex_unlock(&vmstop_lock);
767 /***********************************************************/
768 /* RTC reference time/date access */
769 static time_t qemu_ref_timedate(QEMUClockType clock)
771 time_t value = qemu_clock_get_ms(clock) / 1000;
773 case QEMU_CLOCK_REALTIME:
774 value -= rtc_realtime_clock_offset;
776 case QEMU_CLOCK_VIRTUAL:
777 value += rtc_ref_start_datetime;
779 case QEMU_CLOCK_HOST:
780 if (rtc_base_type == RTC_BASE_DATETIME) {
781 value -= rtc_host_datetime_offset;
790 void qemu_get_timedate(struct tm *tm, int offset)
792 time_t ti = qemu_ref_timedate(rtc_clock);
796 switch (rtc_base_type) {
797 case RTC_BASE_DATETIME:
801 case RTC_BASE_LOCALTIME:
802 localtime_r(&ti, tm);
807 int qemu_timedate_diff(struct tm *tm)
811 switch (rtc_base_type) {
812 case RTC_BASE_DATETIME:
814 seconds = mktimegm(tm);
816 case RTC_BASE_LOCALTIME:
819 tmp.tm_isdst = -1; /* use timezone to figure it out */
820 seconds = mktime(&tmp);
827 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
830 static void configure_rtc_base_datetime(const char *startdate)
832 time_t rtc_start_datetime;
835 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
836 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
838 } else if (sscanf(startdate, "%d-%d-%d",
839 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
848 rtc_start_datetime = mktimegm(&tm);
849 if (rtc_start_datetime == -1) {
851 error_report("invalid datetime format");
852 error_printf("valid formats: "
853 "'2006-06-17T16:01:21' or '2006-06-17'\n");
856 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
857 rtc_ref_start_datetime = rtc_start_datetime;
860 static void configure_rtc(QemuOpts *opts)
865 rtc_clock = QEMU_CLOCK_HOST;
866 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
867 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
869 value = qemu_opt_get(opts, "base");
871 if (!strcmp(value, "utc")) {
872 rtc_base_type = RTC_BASE_UTC;
873 } else if (!strcmp(value, "localtime")) {
874 Error *blocker = NULL;
875 rtc_base_type = RTC_BASE_LOCALTIME;
876 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
877 "-rtc base=localtime");
878 replay_add_blocker(blocker);
880 rtc_base_type = RTC_BASE_DATETIME;
881 configure_rtc_base_datetime(value);
884 value = qemu_opt_get(opts, "clock");
886 if (!strcmp(value, "host")) {
887 rtc_clock = QEMU_CLOCK_HOST;
888 } else if (!strcmp(value, "rt")) {
889 rtc_clock = QEMU_CLOCK_REALTIME;
890 } else if (!strcmp(value, "vm")) {
891 rtc_clock = QEMU_CLOCK_VIRTUAL;
893 error_report("invalid option value '%s'", value);
897 value = qemu_opt_get(opts, "driftfix");
899 if (!strcmp(value, "slew")) {
900 static GlobalProperty slew_lost_ticks = {
901 .driver = "mc146818rtc",
902 .property = "lost_tick_policy",
906 qdev_prop_register_global(&slew_lost_ticks);
907 } else if (!strcmp(value, "none")) {
908 /* discard is default */
910 error_report("invalid option value '%s'", value);
916 /***********************************************************/
917 /* Bluetooth support */
920 static struct HCIInfo *hci_table[MAX_NICS];
922 struct HCIInfo *qemu_next_hci(void)
924 if (cur_hci == nb_hcis)
927 return hci_table[cur_hci++];
930 static int bt_hci_parse(const char *str)
935 if (nb_hcis >= MAX_NICS) {
936 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
949 bdaddr.b[5] = 0x56 + nb_hcis;
950 hci->bdaddr_set(hci, bdaddr.b);
952 hci_table[nb_hcis++] = hci;
957 static void bt_vhci_add(int vlan_id)
959 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
962 warn_report("adding a VHCI to an empty scatternet %i",
965 bt_vhci_init(bt_new_hci(vlan));
968 static struct bt_device_s *bt_device_add(const char *opt)
970 struct bt_scatternet_s *vlan;
972 char *endp = strstr(opt, ",vlan=");
973 int len = (endp ? endp - opt : strlen(opt)) + 1;
976 pstrcpy(devname, MIN(sizeof(devname), len), opt);
979 vlan_id = strtol(endp + 6, &endp, 0);
981 error_report("unrecognised bluetooth vlan Id");
986 vlan = qemu_find_bt_vlan(vlan_id);
989 warn_report("adding a slave device to an empty scatternet %i",
992 if (!strcmp(devname, "keyboard"))
993 return bt_keyboard_init(vlan);
995 error_report("unsupported bluetooth device '%s'", devname);
999 static int bt_parse(const char *opt)
1001 const char *endp, *p;
1004 if (strstart(opt, "hci", &endp)) {
1005 if (!*endp || *endp == ',') {
1007 if (!strstart(endp, ",vlan=", 0))
1010 return bt_hci_parse(opt);
1012 } else if (strstart(opt, "vhci", &endp)) {
1013 if (!*endp || *endp == ',') {
1015 if (strstart(endp, ",vlan=", &p)) {
1016 vlan = strtol(p, (char **) &endp, 0);
1018 error_report("bad scatternet '%s'", p);
1022 error_report("bad parameter '%s'", endp + 1);
1031 } else if (strstart(opt, "device:", &endp))
1032 return !bt_device_add(endp);
1034 error_report("bad bluetooth parameter '%s'", opt);
1038 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1040 const char *proc_name;
1042 if (qemu_opt_get(opts, "debug-threads")) {
1043 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1045 qemu_name = qemu_opt_get(opts, "guest");
1047 proc_name = qemu_opt_get(opts, "process");
1049 os_set_proc_name(proc_name);
1055 bool defaults_enabled(void)
1057 return has_defaults;
1061 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1063 int fd, dupfd, flags;
1065 const char *fd_opaque = NULL;
1068 fd = qemu_opt_get_number(opts, "fd", -1);
1069 fdset_id = qemu_opt_get_number(opts, "set", -1);
1070 fd_opaque = qemu_opt_get(opts, "opaque");
1073 error_setg(errp, "fd option is required and must be non-negative");
1077 if (fd <= STDERR_FILENO) {
1078 error_setg(errp, "fd cannot be a standard I/O stream");
1083 * All fds inherited across exec() necessarily have FD_CLOEXEC
1084 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1086 flags = fcntl(fd, F_GETFD);
1087 if (flags == -1 || (flags & FD_CLOEXEC)) {
1088 error_setg(errp, "fd is not valid or already in use");
1093 error_setg(errp, "set option is required and must be non-negative");
1097 #ifdef F_DUPFD_CLOEXEC
1098 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1102 qemu_set_cloexec(dupfd);
1106 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1110 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1111 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1118 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1122 fd = qemu_opt_get_number(opts, "fd", -1);
1129 /***********************************************************/
1130 /* QEMU Block devices */
1132 #define HD_OPTS "media=disk"
1133 #define CDROM_OPTS "media=cdrom"
1135 #define PFLASH_OPTS ""
1139 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1141 BlockInterfaceType *block_default_type = opaque;
1143 return drive_new(opts, *block_default_type, errp) == NULL;
1146 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1148 if (qemu_opt_get(opts, "snapshot") == NULL) {
1149 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1154 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1155 int index, const char *optstr)
1160 if (!enable || drive_get_by_index(type, index)) {
1164 opts = drive_add(type, index, NULL, optstr);
1166 drive_enable_snapshot(NULL, opts, NULL);
1169 dinfo = drive_new(opts, type, &error_abort);
1170 dinfo->is_default = true;
1174 typedef struct BlockdevOptionsQueueEntry {
1175 BlockdevOptions *bdo;
1177 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1178 } BlockdevOptionsQueueEntry;
1180 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1182 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1183 MachineClass *machine_class, int snapshot)
1186 * If the currently selected machine wishes to override the
1187 * units-per-bus property of its default HBA interface type, do so
1190 if (machine_class->units_per_default_bus) {
1191 override_max_devs(machine_class->block_default_type,
1192 machine_class->units_per_default_bus);
1195 /* open the virtual block devices */
1196 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1197 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1199 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1200 loc_push_restore(&bdo->loc);
1201 qmp_blockdev_add(bdo->bdo, &error_fatal);
1203 qapi_free_BlockdevOptions(bdo->bdo);
1206 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1207 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1210 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1211 &machine_class->block_default_type, &error_fatal)) {
1212 /* We printed help */
1216 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1218 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1219 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1223 static QemuOptsList qemu_smp_opts = {
1225 .implied_opt_name = "cpus",
1226 .merge_lists = true,
1227 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1231 .type = QEMU_OPT_NUMBER,
1234 .type = QEMU_OPT_NUMBER,
1237 .type = QEMU_OPT_NUMBER,
1240 .type = QEMU_OPT_NUMBER,
1243 .type = QEMU_OPT_NUMBER,
1246 .type = QEMU_OPT_NUMBER,
1248 { /*End of list */ }
1252 static void realtime_init(void)
1255 if (os_mlock() < 0) {
1256 error_report("locking memory failed");
1263 static void configure_msg(QemuOpts *opts)
1265 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1269 /* Now we still need this for compatibility with XEN. */
1270 bool has_igd_gfx_passthru;
1271 static void igd_gfx_passthru(void)
1273 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1276 /***********************************************************/
1279 static int usb_device_add(const char *devname)
1281 USBDevice *dev = NULL;
1283 if (!machine_usb(current_machine)) {
1287 dev = usbdevice_create(devname);
1294 static int usb_parse(const char *cmdline)
1297 r = usb_device_add(cmdline);
1299 error_report("could not add USB device '%s'", cmdline);
1304 /***********************************************************/
1305 /* machine registration */
1307 MachineState *current_machine;
1309 static MachineClass *find_machine(const char *name, GSList *machines)
1313 for (el = machines; el; el = el->next) {
1314 MachineClass *mc = el->data;
1316 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1324 static MachineClass *find_default_machine(GSList *machines)
1328 for (el = machines; el; el = el->next) {
1329 MachineClass *mc = el->data;
1331 if (mc->is_default) {
1339 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1341 ObjectProperty *prop;
1342 ObjectPropertyIterator iter;
1344 if (!qemu_opt_has_help_opt(opts)) {
1348 object_property_iter_init(&iter, OBJECT(machine));
1349 while ((prop = object_property_iter_next(&iter))) {
1354 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1355 prop->name, prop->type);
1356 if (prop->description) {
1357 printf(" (%s)\n", prop->description);
1366 struct VMChangeStateEntry {
1367 VMChangeStateHandler *cb;
1369 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1373 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1376 * qemu_add_vm_change_state_handler_prio:
1377 * @cb: the callback to invoke
1378 * @opaque: user data passed to the callback
1379 * @priority: low priorities execute first when the vm runs and the reverse is
1380 * true when the vm stops
1382 * Register a callback function that is invoked when the vm starts or stops
1385 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1387 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1388 VMChangeStateHandler *cb, void *opaque, int priority)
1390 VMChangeStateEntry *e;
1391 VMChangeStateEntry *other;
1393 e = g_malloc0(sizeof(*e));
1396 e->priority = priority;
1398 /* Keep list sorted in ascending priority order */
1399 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1400 if (priority < other->priority) {
1401 QTAILQ_INSERT_BEFORE(other, e, entries);
1406 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1410 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1413 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1416 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1418 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1422 void vm_state_notify(int running, RunState state)
1424 VMChangeStateEntry *e, *next;
1426 trace_vm_state_notify(running, state, RunState_str(state));
1429 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1430 e->cb(e->opaque, running, state);
1433 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1434 e->cb(e->opaque, running, state);
1439 static ShutdownCause reset_requested;
1440 static ShutdownCause shutdown_requested;
1441 static int shutdown_signal;
1442 static pid_t shutdown_pid;
1443 static int powerdown_requested;
1444 static int debug_requested;
1445 static int suspend_requested;
1446 static bool preconfig_exit_requested = true;
1447 static WakeupReason wakeup_reason;
1448 static NotifierList powerdown_notifiers =
1449 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1450 static NotifierList suspend_notifiers =
1451 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1452 static NotifierList wakeup_notifiers =
1453 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1454 static NotifierList shutdown_notifiers =
1455 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1456 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1458 ShutdownCause qemu_shutdown_requested_get(void)
1460 return shutdown_requested;
1463 ShutdownCause qemu_reset_requested_get(void)
1465 return reset_requested;
1468 static int qemu_shutdown_requested(void)
1470 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1473 static void qemu_kill_report(void)
1475 if (!qtest_driver() && shutdown_signal) {
1476 if (shutdown_pid == 0) {
1477 /* This happens for eg ^C at the terminal, so it's worth
1478 * avoiding printing an odd message in that case.
1480 error_report("terminating on signal %d", shutdown_signal);
1482 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1484 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1485 shutdown_signal, shutdown_pid,
1486 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1487 g_free(shutdown_cmd);
1489 shutdown_signal = 0;
1493 static ShutdownCause qemu_reset_requested(void)
1495 ShutdownCause r = reset_requested;
1497 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1498 reset_requested = SHUTDOWN_CAUSE_NONE;
1501 return SHUTDOWN_CAUSE_NONE;
1504 static int qemu_suspend_requested(void)
1506 int r = suspend_requested;
1507 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1508 suspend_requested = 0;
1514 static WakeupReason qemu_wakeup_requested(void)
1516 return wakeup_reason;
1519 static int qemu_powerdown_requested(void)
1521 int r = powerdown_requested;
1522 powerdown_requested = 0;
1526 static int qemu_debug_requested(void)
1528 int r = debug_requested;
1529 debug_requested = 0;
1533 void qemu_exit_preconfig_request(void)
1535 preconfig_exit_requested = true;
1539 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1541 void qemu_system_reset(ShutdownCause reason)
1545 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1547 cpu_synchronize_all_states();
1549 if (mc && mc->reset) {
1550 mc->reset(current_machine);
1552 qemu_devices_reset();
1554 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1555 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1557 cpu_synchronize_all_post_reset();
1560 void qemu_system_guest_panicked(GuestPanicInformation *info)
1562 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1565 current_cpu->crash_occurred = true;
1567 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1569 vm_stop(RUN_STATE_GUEST_PANICKED);
1571 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1573 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1577 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1578 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1579 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1580 info->u.hyper_v.arg1,
1581 info->u.hyper_v.arg2,
1582 info->u.hyper_v.arg3,
1583 info->u.hyper_v.arg4,
1584 info->u.hyper_v.arg5);
1585 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1586 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1587 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1589 S390CrashReason_str(info->u.s390.reason),
1590 info->u.s390.psw_mask,
1591 info->u.s390.psw_addr);
1593 qapi_free_GuestPanicInformation(info);
1597 void qemu_system_reset_request(ShutdownCause reason)
1599 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1600 shutdown_requested = reason;
1602 reset_requested = reason;
1605 qemu_notify_event();
1608 static void qemu_system_suspend(void)
1611 notifier_list_notify(&suspend_notifiers, NULL);
1612 runstate_set(RUN_STATE_SUSPENDED);
1613 qapi_event_send_suspend();
1616 void qemu_system_suspend_request(void)
1618 if (runstate_check(RUN_STATE_SUSPENDED)) {
1621 suspend_requested = 1;
1623 qemu_notify_event();
1626 void qemu_register_suspend_notifier(Notifier *notifier)
1628 notifier_list_add(&suspend_notifiers, notifier);
1631 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1633 trace_system_wakeup_request(reason);
1635 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1637 "Unable to wake up: guest is not in suspended state");
1640 if (!(wakeup_reason_mask & (1 << reason))) {
1643 runstate_set(RUN_STATE_RUNNING);
1644 wakeup_reason = reason;
1645 qemu_notify_event();
1648 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1651 wakeup_reason_mask |= (1 << reason);
1653 wakeup_reason_mask &= ~(1 << reason);
1657 void qemu_register_wakeup_notifier(Notifier *notifier)
1659 notifier_list_add(&wakeup_notifiers, notifier);
1662 void qemu_register_wakeup_support(void)
1664 wakeup_suspend_enabled = true;
1667 bool qemu_wakeup_suspend_enabled(void)
1669 return wakeup_suspend_enabled;
1672 void qemu_system_killed(int signal, pid_t pid)
1674 shutdown_signal = signal;
1678 /* Cannot call qemu_system_shutdown_request directly because
1679 * we are in a signal handler.
1681 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1682 qemu_notify_event();
1685 void qemu_system_shutdown_request(ShutdownCause reason)
1687 trace_qemu_system_shutdown_request(reason);
1688 replay_shutdown_request(reason);
1689 shutdown_requested = reason;
1690 qemu_notify_event();
1693 static void qemu_system_powerdown(void)
1695 qapi_event_send_powerdown();
1696 notifier_list_notify(&powerdown_notifiers, NULL);
1699 static void qemu_system_shutdown(ShutdownCause cause)
1701 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1702 notifier_list_notify(&shutdown_notifiers, &cause);
1705 void qemu_system_powerdown_request(void)
1707 trace_qemu_system_powerdown_request();
1708 powerdown_requested = 1;
1709 qemu_notify_event();
1712 void qemu_register_powerdown_notifier(Notifier *notifier)
1714 notifier_list_add(&powerdown_notifiers, notifier);
1717 void qemu_register_shutdown_notifier(Notifier *notifier)
1719 notifier_list_add(&shutdown_notifiers, notifier);
1722 void qemu_system_debug_request(void)
1724 debug_requested = 1;
1725 qemu_notify_event();
1728 static bool main_loop_should_exit(void)
1731 ShutdownCause request;
1733 if (preconfig_exit_requested) {
1734 if (runstate_check(RUN_STATE_PRECONFIG)) {
1735 runstate_set(RUN_STATE_PRELAUNCH);
1737 preconfig_exit_requested = false;
1740 if (qemu_debug_requested()) {
1741 vm_stop(RUN_STATE_DEBUG);
1743 if (qemu_suspend_requested()) {
1744 qemu_system_suspend();
1746 request = qemu_shutdown_requested();
1749 qemu_system_shutdown(request);
1751 vm_stop(RUN_STATE_SHUTDOWN);
1756 request = qemu_reset_requested();
1759 qemu_system_reset(request);
1761 if (!runstate_check(RUN_STATE_RUNNING) &&
1762 !runstate_check(RUN_STATE_INMIGRATE)) {
1763 runstate_set(RUN_STATE_PRELAUNCH);
1766 if (qemu_wakeup_requested()) {
1768 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1769 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1770 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1772 qapi_event_send_wakeup();
1774 if (qemu_powerdown_requested()) {
1775 qemu_system_powerdown();
1777 if (qemu_vmstop_requested(&r)) {
1783 static void main_loop(void)
1785 #ifdef CONFIG_PROFILER
1788 while (!main_loop_should_exit()) {
1789 #ifdef CONFIG_PROFILER
1790 ti = profile_getclock();
1792 main_loop_wait(false);
1793 #ifdef CONFIG_PROFILER
1794 dev_time += profile_getclock() - ti;
1799 static void version(void)
1801 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1802 QEMU_COPYRIGHT "\n");
1805 static void help(int exitcode)
1808 printf("usage: %s [options] [disk_image]\n\n"
1809 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1810 error_get_progname());
1812 #define QEMU_OPTIONS_GENERATE_HELP
1813 #include "qemu-options-wrapper.h"
1815 printf("\nDuring emulation, the following keys are useful:\n"
1816 "ctrl-alt-f toggle full screen\n"
1817 "ctrl-alt-n switch to virtual console 'n'\n"
1818 "ctrl-alt toggle mouse and keyboard grab\n"
1820 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1822 QEMU_HELP_BOTTOM "\n");
1827 #define HAS_ARG 0x0001
1829 typedef struct QEMUOption {
1836 static const QEMUOption qemu_options[] = {
1837 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1838 #define QEMU_OPTIONS_GENERATE_OPTIONS
1839 #include "qemu-options-wrapper.h"
1843 typedef struct VGAInterfaceInfo {
1844 const char *opt_name; /* option name */
1845 const char *name; /* human-readable name */
1846 /* Class names indicating that support is available.
1847 * If no class is specified, the interface is always available */
1848 const char *class_names[2];
1851 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1854 .name = "no graphic card",
1858 .name = "standard VGA",
1859 .class_names = { "VGA", "isa-vga" },
1862 .opt_name = "cirrus",
1863 .name = "Cirrus VGA",
1864 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1867 .opt_name = "vmware",
1868 .name = "VMWare SVGA",
1869 .class_names = { "vmware-svga" },
1872 .opt_name = "virtio",
1873 .name = "Virtio VGA",
1874 .class_names = { "virtio-vga" },
1879 .class_names = { "qxl-vga" },
1883 .name = "TCX framebuffer",
1884 .class_names = { "SUNW,tcx" },
1888 .name = "CG3 framebuffer",
1889 .class_names = { "cgthree" },
1892 .opt_name = "xenfb",
1893 .name = "Xen paravirtualized framebuffer",
1897 static bool vga_interface_available(VGAInterfaceType t)
1899 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1901 assert(t < VGA_TYPE_MAX);
1902 return !ti->class_names[0] ||
1903 object_class_by_name(ti->class_names[0]) ||
1904 object_class_by_name(ti->class_names[1]);
1908 get_default_vga_model(const MachineClass *machine_class)
1910 if (machine_class->default_display) {
1911 return machine_class->default_display;
1912 } else if (vga_interface_available(VGA_CIRRUS)) {
1914 } else if (vga_interface_available(VGA_STD)) {
1921 static void select_vgahw(const MachineClass *machine_class, const char *p)
1926 if (g_str_equal(p, "help")) {
1927 const char *def = get_default_vga_model(machine_class);
1929 for (t = 0; t < VGA_TYPE_MAX; t++) {
1930 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1932 if (vga_interface_available(t) && ti->opt_name) {
1933 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1934 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1940 assert(vga_interface_type == VGA_NONE);
1941 for (t = 0; t < VGA_TYPE_MAX; t++) {
1942 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1943 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1944 if (!vga_interface_available(t)) {
1945 error_report("%s not available", ti->name);
1948 vga_interface_type = t;
1952 if (t == VGA_TYPE_MAX) {
1954 error_report("unknown vga type: %s", p);
1958 const char *nextopt;
1960 if (strstart(opts, ",retrace=", &nextopt)) {
1962 if (strstart(opts, "dumb", &nextopt))
1963 vga_retrace_method = VGA_RETRACE_DUMB;
1964 else if (strstart(opts, "precise", &nextopt))
1965 vga_retrace_method = VGA_RETRACE_PRECISE;
1966 else goto invalid_vga;
1967 } else goto invalid_vga;
1972 static void parse_display_qapi(const char *optarg)
1974 DisplayOptions *opts;
1977 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1979 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1980 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1982 qapi_free_DisplayOptions(opts);
1986 DisplayOptions *qmp_query_display_options(Error **errp)
1988 return QAPI_CLONE(DisplayOptions, &dpy);
1991 static void parse_display(const char *p)
1995 if (strstart(p, "sdl", &opts)) {
1997 * sdl DisplayType needs hand-crafted parser instead of
1998 * parse_display_qapi() due to some options not in
1999 * DisplayOptions, specifically:
2001 * Already deprecated.
2002 * - ctrl_grab + alt_grab
2003 * Not clear yet what happens to them long-term. Should
2004 * replaced by something better or deprecated and dropped.
2006 dpy.type = DISPLAY_TYPE_SDL;
2008 const char *nextopt;
2010 if (strstart(opts, ",alt_grab=", &nextopt)) {
2012 if (strstart(opts, "on", &nextopt)) {
2014 } else if (strstart(opts, "off", &nextopt)) {
2017 goto invalid_sdl_args;
2019 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2021 if (strstart(opts, "on", &nextopt)) {
2023 } else if (strstart(opts, "off", &nextopt)) {
2026 goto invalid_sdl_args;
2028 } else if (strstart(opts, ",window_close=", &nextopt)) {
2030 dpy.has_window_close = true;
2031 if (strstart(opts, "on", &nextopt)) {
2032 dpy.window_close = true;
2033 } else if (strstart(opts, "off", &nextopt)) {
2034 dpy.window_close = false;
2036 goto invalid_sdl_args;
2038 } else if (strstart(opts, ",gl=", &nextopt)) {
2041 if (strstart(opts, "on", &nextopt)) {
2042 dpy.gl = DISPLAYGL_MODE_ON;
2043 } else if (strstart(opts, "core", &nextopt)) {
2044 dpy.gl = DISPLAYGL_MODE_CORE;
2045 } else if (strstart(opts, "es", &nextopt)) {
2046 dpy.gl = DISPLAYGL_MODE_ES;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 dpy.gl = DISPLAYGL_MODE_OFF;
2050 goto invalid_sdl_args;
2054 error_report("invalid SDL option string");
2059 } else if (strstart(p, "vnc", &opts)) {
2061 * vnc isn't a (local) DisplayType but a protocol for remote
2065 vnc_parse(opts + 1, &error_fatal);
2067 error_report("VNC requires a display argument vnc=<display>");
2071 parse_display_qapi(p);
2075 char *qemu_find_file(int type, const char *name)
2081 /* Try the name as a straight path first */
2082 if (access(name, R_OK) == 0) {
2083 trace_load_file(name, name);
2084 return g_strdup(name);
2088 case QEMU_FILE_TYPE_BIOS:
2091 case QEMU_FILE_TYPE_KEYMAP:
2092 subdir = "keymaps/";
2098 for (i = 0; i < data_dir_idx; i++) {
2099 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2100 if (access(buf, R_OK) == 0) {
2101 trace_load_file(name, buf);
2109 static void qemu_add_data_dir(const char *path)
2116 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2119 for (i = 0; i < data_dir_idx; i++) {
2120 if (strcmp(data_dir[i], path) == 0) {
2121 return; /* duplicate */
2124 data_dir[data_dir_idx++] = g_strdup(path);
2127 static inline bool nonempty_str(const char *str)
2132 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2136 const char *name, *file, *str;
2137 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2139 if (fw_cfg == NULL) {
2140 error_setg(errp, "fw_cfg device not available");
2143 name = qemu_opt_get(opts, "name");
2144 file = qemu_opt_get(opts, "file");
2145 str = qemu_opt_get(opts, "string");
2147 /* we need name and either a file or the content string */
2148 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2149 error_setg(errp, "invalid argument(s)");
2152 if (nonempty_str(file) && nonempty_str(str)) {
2153 error_setg(errp, "file and string are mutually exclusive");
2156 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2157 error_setg(errp, "name too long (max. %d char)",
2158 FW_CFG_MAX_FILE_PATH - 1);
2161 if (strncmp(name, "opt/", 4) != 0) {
2162 warn_report("externally provided fw_cfg item names "
2163 "should be prefixed with \"opt/\"");
2165 if (nonempty_str(str)) {
2166 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2167 buf = g_memdup(str, size);
2170 if (!g_file_get_contents(file, &buf, &size, &err)) {
2171 error_setg(errp, "can't load %s: %s", file, err->message);
2176 /* For legacy, keep user files in a specific global order. */
2177 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2178 fw_cfg_add_file(fw_cfg, name, buf, size);
2179 fw_cfg_reset_order_override(fw_cfg);
2183 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2185 return qdev_device_help(opts);
2188 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2192 dev = qdev_device_add(opts, errp);
2196 object_unref(OBJECT(dev));
2200 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2202 Error *local_err = NULL;
2204 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2206 error_propagate(errp, local_err);
2214 #ifdef CONFIG_VIRTFS
2215 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2217 return qemu_fsdev_add(opts, errp);
2221 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2225 bool pretty = false;
2226 const char *chardev;
2229 mode = qemu_opt_get(opts, "mode");
2233 if (strcmp(mode, "readline") == 0) {
2235 } else if (strcmp(mode, "control") == 0) {
2238 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2242 if (!qmp && qemu_opt_get(opts, "pretty")) {
2243 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2244 "and will be removed in future versions");
2246 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2250 chardev = qemu_opt_get(opts, "chardev");
2252 error_report("chardev is required");
2255 chr = qemu_chr_find(chardev);
2257 error_setg(errp, "chardev \"%s\" not found", chardev);
2262 monitor_init_qmp(chr, pretty);
2264 monitor_init_hmp(chr, true);
2269 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2271 static int monitor_device_index = 0;
2276 if (strstart(optarg, "chardev:", &p)) {
2277 snprintf(label, sizeof(label), "%s", p);
2279 snprintf(label, sizeof(label), "compat_monitor%d",
2280 monitor_device_index);
2281 opts = qemu_chr_parse_compat(label, optarg, true);
2283 error_report("parse error: %s", optarg);
2288 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2289 qemu_opt_set(opts, "mode", mode, &error_abort);
2290 qemu_opt_set(opts, "chardev", label, &error_abort);
2291 if (!strcmp(mode, "control")) {
2292 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2294 assert(pretty == false);
2296 monitor_device_index++;
2299 struct device_config {
2301 DEV_USB, /* -usbdevice */
2303 DEV_SERIAL, /* -serial */
2304 DEV_PARALLEL, /* -parallel */
2305 DEV_DEBUGCON, /* -debugcon */
2306 DEV_GDB, /* -gdb, -s */
2307 DEV_SCLP, /* s390 sclp */
2309 const char *cmdline;
2311 QTAILQ_ENTRY(device_config) next;
2314 static QTAILQ_HEAD(, device_config) device_configs =
2315 QTAILQ_HEAD_INITIALIZER(device_configs);
2317 static void add_device_config(int type, const char *cmdline)
2319 struct device_config *conf;
2321 conf = g_malloc0(sizeof(*conf));
2323 conf->cmdline = cmdline;
2324 loc_save(&conf->loc);
2325 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2328 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2330 struct device_config *conf;
2333 QTAILQ_FOREACH(conf, &device_configs, next) {
2334 if (conf->type != type)
2336 loc_push_restore(&conf->loc);
2337 rc = func(conf->cmdline);
2338 loc_pop(&conf->loc);
2346 static int serial_parse(const char *devname)
2348 int index = num_serial_hds;
2351 if (strcmp(devname, "none") == 0)
2353 snprintf(label, sizeof(label), "serial%d", index);
2354 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2356 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2357 if (!serial_hds[index]) {
2358 error_report("could not connect serial device"
2359 " to character backend '%s'", devname);
2366 Chardev *serial_hd(int i)
2369 if (i < num_serial_hds) {
2370 return serial_hds[i];
2375 int serial_max_hds(void)
2377 return num_serial_hds;
2380 static int parallel_parse(const char *devname)
2382 static int index = 0;
2385 if (strcmp(devname, "none") == 0)
2387 if (index == MAX_PARALLEL_PORTS) {
2388 error_report("too many parallel ports");
2391 snprintf(label, sizeof(label), "parallel%d", index);
2392 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2393 if (!parallel_hds[index]) {
2394 error_report("could not connect parallel device"
2395 " to character backend '%s'", devname);
2402 static int debugcon_parse(const char *devname)
2406 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2407 error_report("invalid character backend '%s'", devname);
2410 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2412 error_report("already have a debugcon device");
2415 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2416 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2420 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2422 const MachineClass *mc1 = a, *mc2 = b;
2425 if (mc1->family == NULL) {
2426 if (mc2->family == NULL) {
2427 /* Compare standalone machine types against each other; they sort
2428 * in increasing order.
2430 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2431 object_class_get_name(OBJECT_CLASS(mc2)));
2434 /* Standalone machine types sort after families. */
2438 if (mc2->family == NULL) {
2439 /* Families sort before standalone machine types. */
2443 /* Families sort between each other alphabetically increasingly. */
2444 res = strcmp(mc1->family, mc2->family);
2449 /* Within the same family, machine types sort in decreasing order. */
2450 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2451 object_class_get_name(OBJECT_CLASS(mc1)));
2454 static MachineClass *machine_parse(const char *name, GSList *machines)
2459 if (is_help_option(name)) {
2460 printf("Supported machines are:\n");
2461 machines = g_slist_sort(machines, machine_class_cmp);
2462 for (el = machines; el; el = el->next) {
2463 MachineClass *mc = el->data;
2465 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2467 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2468 mc->is_default ? " (default)" : "",
2469 mc->deprecation_reason ? " (deprecated)" : "");
2474 mc = find_machine(name, machines);
2476 error_report("unsupported machine type");
2477 error_printf("Use -machine help to list supported machines\n");
2483 void qemu_add_exit_notifier(Notifier *notify)
2485 notifier_list_add(&exit_notifiers, notify);
2488 void qemu_remove_exit_notifier(Notifier *notify)
2490 notifier_remove(notify);
2493 static void qemu_run_exit_notifiers(void)
2495 notifier_list_notify(&exit_notifiers, NULL);
2498 static const char *pid_file;
2499 static Notifier qemu_unlink_pidfile_notifier;
2501 static void qemu_unlink_pidfile(Notifier *n, void *data)
2508 bool machine_init_done;
2510 void qemu_add_machine_init_done_notifier(Notifier *notify)
2512 notifier_list_add(&machine_init_done_notifiers, notify);
2513 if (machine_init_done) {
2514 notify->notify(notify, NULL);
2518 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2520 notifier_remove(notify);
2523 static void qemu_run_machine_init_done_notifiers(void)
2525 machine_init_done = true;
2526 notifier_list_notify(&machine_init_done_notifiers, NULL);
2529 static const QEMUOption *lookup_opt(int argc, char **argv,
2530 const char **poptarg, int *poptind)
2532 const QEMUOption *popt;
2533 int optind = *poptind;
2534 char *r = argv[optind];
2537 loc_set_cmdline(argv, optind, 1);
2539 /* Treat --foo the same as -foo. */
2542 popt = qemu_options;
2545 error_report("invalid option");
2548 if (!strcmp(popt->name, r + 1))
2552 if (popt->flags & HAS_ARG) {
2553 if (optind >= argc) {
2554 error_report("requires an argument");
2557 optarg = argv[optind++];
2558 loc_set_cmdline(argv, optind - 2, 2);
2569 static MachineClass *select_machine(void)
2571 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2572 MachineClass *machine_class = find_default_machine(machines);
2577 loc_push_none(&loc);
2579 opts = qemu_get_machine_opts();
2580 qemu_opts_loc_restore(opts);
2582 optarg = qemu_opt_get(opts, "type");
2584 machine_class = machine_parse(optarg, machines);
2587 if (!machine_class) {
2588 error_report("No machine specified, and there is no default");
2589 error_printf("Use -machine help to list supported machines\n");
2594 g_slist_free(machines);
2595 return machine_class;
2598 static int machine_set_property(void *opaque,
2599 const char *name, const char *value,
2602 Object *obj = OBJECT(opaque);
2603 Error *local_err = NULL;
2606 if (strcmp(name, "type") == 0) {
2610 qom_name = g_strdup(name);
2611 for (p = qom_name; *p; p++) {
2617 object_property_parse(obj, value, qom_name, &local_err);
2621 error_propagate(errp, local_err);
2630 * Initial object creation happens before all other
2631 * QEMU data types are created. The majority of objects
2632 * can be created at this point. The rng-egd object
2633 * cannot be created here, as it depends on the chardev
2636 static bool object_create_initial(const char *type, QemuOpts *opts)
2640 if (is_help_option(type)) {
2643 printf("List of user creatable objects:\n");
2644 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2645 for (l = list; l != NULL; l = l->next) {
2646 ObjectClass *oc = OBJECT_CLASS(l->data);
2647 printf(" %s\n", object_class_get_name(oc));
2653 klass = object_class_by_name(type);
2654 if (klass && qemu_opt_has_help_opt(opts)) {
2655 ObjectPropertyIterator iter;
2656 ObjectProperty *prop;
2657 GPtrArray *array = g_ptr_array_new();
2660 object_class_property_iter_init(&iter, klass);
2661 while ((prop = object_property_iter_next(&iter))) {
2668 str = g_string_new(NULL);
2669 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2670 if (prop->description) {
2671 if (str->len < 24) {
2672 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2674 g_string_append_printf(str, " - %s", prop->description);
2676 g_ptr_array_add(array, g_string_free(str, false));
2678 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2679 if (array->len > 0) {
2680 printf("%s options:\n", type);
2682 printf("There are no options for %s.\n", type);
2684 for (i = 0; i < array->len; i++) {
2685 printf("%s\n", (char *)array->pdata[i]);
2687 g_ptr_array_set_free_func(array, g_free);
2688 g_ptr_array_free(array, true);
2693 * Objects should not be made "delayed" without a reason. If you
2694 * add one, state the reason in a comment!
2697 /* Reason: rng-egd property "chardev" */
2698 if (g_str_equal(type, "rng-egd")) {
2702 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2703 /* Reason: cryptodev-vhost-user property "chardev" */
2704 if (g_str_equal(type, "cryptodev-vhost-user")) {
2710 * Reason: filter-* property "netdev" etc.
2712 if (g_str_equal(type, "filter-buffer") ||
2713 g_str_equal(type, "filter-dump") ||
2714 g_str_equal(type, "filter-mirror") ||
2715 g_str_equal(type, "filter-redirector") ||
2716 g_str_equal(type, "colo-compare") ||
2717 g_str_equal(type, "filter-rewriter") ||
2718 g_str_equal(type, "filter-replay")) {
2722 /* Memory allocation by backends needs to be done
2723 * after configure_accelerator() (due to the tcg_enabled()
2724 * checks at memory_region_init_*()).
2726 * Also, allocation of large amounts of memory may delay
2727 * chardev initialization for too long, and trigger timeouts
2728 * on software that waits for a monitor socket to be created
2731 if (g_str_has_prefix(type, "memory-backend-")) {
2740 * The remainder of object creation happens after the
2741 * creation of chardev, fsdev, net clients and device data types.
2743 static bool object_create_delayed(const char *type, QemuOpts *opts)
2745 return !object_create_initial(type, opts);
2749 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2753 const char *mem_str;
2754 const ram_addr_t default_ram_size = mc->default_ram_size;
2755 QemuOpts *opts = qemu_find_opts_singleton("memory");
2758 loc_push_none(&loc);
2759 qemu_opts_loc_restore(opts);
2762 mem_str = qemu_opt_get(opts, "size");
2765 error_report("missing 'size' option value");
2769 sz = qemu_opt_get_size(opts, "size", ram_size);
2771 /* Fix up legacy suffix-less format */
2772 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2773 uint64_t overflow_check = sz;
2776 if (sz / MiB != overflow_check) {
2777 error_report("too large 'size' option value");
2783 /* backward compatibility behaviour for case "-m 0" */
2785 sz = default_ram_size;
2788 sz = QEMU_ALIGN_UP(sz, 8192);
2790 if (ram_size != sz) {
2791 error_report("ram size too large");
2795 /* store value for the future use */
2796 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2797 *maxram_size = ram_size;
2799 if (qemu_opt_get(opts, "maxmem")) {
2802 sz = qemu_opt_get_size(opts, "maxmem", 0);
2803 slots = qemu_opt_get_number(opts, "slots", 0);
2804 if (sz < ram_size) {
2805 error_report("invalid value of -m option maxmem: "
2806 "maximum memory size (0x%" PRIx64 ") must be at least "
2807 "the initial memory size (0x" RAM_ADDR_FMT ")",
2810 } else if (slots && sz == ram_size) {
2811 error_report("invalid value of -m option maxmem: "
2812 "memory slots were specified but maximum memory size "
2813 "(0x%" PRIx64 ") is equal to the initial memory size "
2814 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2820 } else if (qemu_opt_get(opts, "slots")) {
2821 error_report("invalid -m option value: missing 'maxmem' option");
2828 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2832 g = g_malloc0(sizeof(*g));
2833 g->driver = qemu_opt_get(opts, "driver");
2834 g->property = qemu_opt_get(opts, "property");
2835 g->value = qemu_opt_get(opts, "value");
2836 qdev_prop_register_global(g);
2840 static int qemu_read_default_config_file(void)
2844 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2845 if (ret < 0 && ret != -ENOENT) {
2852 static void user_register_global_props(void)
2854 qemu_opts_foreach(qemu_find_opts("global"),
2855 global_init_func, NULL, NULL);
2858 int main(int argc, char **argv, char **envp)
2861 int snapshot, linux_boot;
2862 const char *initrd_filename;
2863 const char *kernel_filename, *kernel_cmdline;
2864 const char *boot_order = NULL;
2865 const char *boot_once = NULL;
2867 QemuOpts *opts, *machine_opts;
2868 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2869 QemuOptsList *olist;
2872 const char *loadvm = NULL;
2873 MachineClass *machine_class;
2874 const char *cpu_option;
2875 const char *vga_model = NULL;
2876 const char *qtest_chrdev = NULL;
2877 const char *qtest_log = NULL;
2878 const char *incoming = NULL;
2879 bool userconfig = true;
2880 bool nographic = false;
2881 int display_remote = 0;
2882 const char *log_mask = NULL;
2883 const char *log_file = NULL;
2884 char *trace_file = NULL;
2885 ram_addr_t maxram_size;
2886 uint64_t ram_slots = 0;
2887 FILE *vmstate_dump_file = NULL;
2888 Error *main_loop_err = NULL;
2890 bool list_data_dirs = false;
2892 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2894 os_set_line_buffering();
2896 error_init(argv[0]);
2897 module_call_init(MODULE_INIT_TRACE);
2899 qemu_init_cpu_list();
2900 qemu_init_cpu_loop();
2902 qemu_mutex_lock_iothread();
2904 atexit(qemu_run_exit_notifiers);
2905 qemu_init_exec_dir(argv[0]);
2907 module_call_init(MODULE_INIT_QOM);
2909 qemu_add_opts(&qemu_drive_opts);
2910 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2911 qemu_add_drive_opts(&qemu_common_drive_opts);
2912 qemu_add_drive_opts(&qemu_drive_opts);
2913 qemu_add_drive_opts(&bdrv_runtime_opts);
2914 qemu_add_opts(&qemu_chardev_opts);
2915 qemu_add_opts(&qemu_device_opts);
2916 qemu_add_opts(&qemu_netdev_opts);
2917 qemu_add_opts(&qemu_nic_opts);
2918 qemu_add_opts(&qemu_net_opts);
2919 qemu_add_opts(&qemu_rtc_opts);
2920 qemu_add_opts(&qemu_global_opts);
2921 qemu_add_opts(&qemu_mon_opts);
2922 qemu_add_opts(&qemu_trace_opts);
2923 qemu_add_opts(&qemu_option_rom_opts);
2924 qemu_add_opts(&qemu_machine_opts);
2925 qemu_add_opts(&qemu_accel_opts);
2926 qemu_add_opts(&qemu_mem_opts);
2927 qemu_add_opts(&qemu_smp_opts);
2928 qemu_add_opts(&qemu_boot_opts);
2929 qemu_add_opts(&qemu_add_fd_opts);
2930 qemu_add_opts(&qemu_object_opts);
2931 qemu_add_opts(&qemu_tpmdev_opts);
2932 qemu_add_opts(&qemu_realtime_opts);
2933 qemu_add_opts(&qemu_overcommit_opts);
2934 qemu_add_opts(&qemu_msg_opts);
2935 qemu_add_opts(&qemu_name_opts);
2936 qemu_add_opts(&qemu_numa_opts);
2937 qemu_add_opts(&qemu_icount_opts);
2938 qemu_add_opts(&qemu_semihosting_config_opts);
2939 qemu_add_opts(&qemu_fw_cfg_opts);
2940 module_call_init(MODULE_INIT_OPTS);
2943 precopy_infrastructure_init();
2944 postcopy_infrastructure_init();
2945 monitor_init_globals();
2947 if (qcrypto_init(&err) < 0) {
2948 error_reportf_err(err, "cannot initialize crypto: ");
2952 QTAILQ_INIT(&vm_change_state_head);
2953 os_setup_early_signal_handling();
2960 bdrv_init_with_whitelist();
2964 /* first pass of option parsing */
2966 while (optind < argc) {
2967 if (argv[optind][0] != '-') {
2971 const QEMUOption *popt;
2973 popt = lookup_opt(argc, argv, &optarg, &optind);
2974 switch (popt->index) {
2975 case QEMU_OPTION_nouserconfig:
2983 if (qemu_read_default_config_file() < 0) {
2988 /* second pass of option parsing */
2993 if (argv[optind][0] != '-') {
2994 loc_set_cmdline(argv, optind, 1);
2995 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2997 const QEMUOption *popt;
2999 popt = lookup_opt(argc, argv, &optarg, &optind);
3000 if (!(popt->arch_mask & arch_type)) {
3001 error_report("Option not supported for this target");
3004 switch(popt->index) {
3005 case QEMU_OPTION_cpu:
3006 /* hw initialization will check this */
3007 cpu_option = optarg;
3009 case QEMU_OPTION_hda:
3010 case QEMU_OPTION_hdb:
3011 case QEMU_OPTION_hdc:
3012 case QEMU_OPTION_hdd:
3013 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3016 case QEMU_OPTION_blockdev:
3019 BlockdevOptionsQueueEntry *bdo;
3021 v = qobject_input_visitor_new_str(optarg, "driver",
3024 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3025 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3028 loc_save(&bdo->loc);
3029 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3032 case QEMU_OPTION_drive:
3033 if (drive_def(optarg) == NULL) {
3037 case QEMU_OPTION_set:
3038 if (qemu_set_option(optarg) != 0)
3041 case QEMU_OPTION_global:
3042 if (qemu_global_option(optarg) != 0)
3045 case QEMU_OPTION_mtdblock:
3046 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3048 case QEMU_OPTION_sd:
3049 drive_add(IF_SD, -1, optarg, SD_OPTS);
3051 case QEMU_OPTION_pflash:
3052 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3054 case QEMU_OPTION_snapshot:
3057 case QEMU_OPTION_numa:
3058 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3064 case QEMU_OPTION_display:
3065 parse_display(optarg);
3067 case QEMU_OPTION_nographic:
3068 olist = qemu_find_opts("machine");
3069 qemu_opts_parse_noisily(olist, "graphics=off", false);
3071 dpy.type = DISPLAY_TYPE_NONE;
3073 case QEMU_OPTION_curses:
3074 #ifdef CONFIG_CURSES
3075 dpy.type = DISPLAY_TYPE_CURSES;
3077 error_report("curses or iconv support is disabled");
3081 case QEMU_OPTION_portrait:
3082 graphic_rotate = 90;
3084 case QEMU_OPTION_rotate:
3085 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3086 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3087 graphic_rotate != 180 && graphic_rotate != 270) {
3088 error_report("only 90, 180, 270 deg rotation is available");
3092 case QEMU_OPTION_kernel:
3093 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3096 case QEMU_OPTION_initrd:
3097 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3100 case QEMU_OPTION_append:
3101 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3104 case QEMU_OPTION_dtb:
3105 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3108 case QEMU_OPTION_cdrom:
3109 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3111 case QEMU_OPTION_boot:
3112 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3118 case QEMU_OPTION_fda:
3119 case QEMU_OPTION_fdb:
3120 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3123 case QEMU_OPTION_no_fd_bootchk:
3126 case QEMU_OPTION_netdev:
3128 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3132 case QEMU_OPTION_nic:
3134 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3138 case QEMU_OPTION_net:
3140 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3144 #ifdef CONFIG_LIBISCSI
3145 case QEMU_OPTION_iscsi:
3146 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3153 case QEMU_OPTION_bt:
3154 warn_report("The bluetooth subsystem is deprecated and will "
3155 "be removed soon. If the bluetooth subsystem is "
3156 "still useful for you, please send a mail to "
3158 add_device_config(DEV_BT, optarg);
3160 case QEMU_OPTION_audio_help:
3161 audio_legacy_help();
3164 case QEMU_OPTION_audiodev:
3165 audio_parse_option(optarg);
3167 case QEMU_OPTION_soundhw:
3168 select_soundhw (optarg);
3173 case QEMU_OPTION_version:
3178 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3185 case QEMU_OPTION_tpmdev:
3186 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3191 case QEMU_OPTION_mempath:
3194 case QEMU_OPTION_mem_prealloc:
3203 case QEMU_OPTION_DFILTER:
3204 qemu_set_dfilter_ranges(optarg, &error_fatal);
3206 case QEMU_OPTION_seed:
3207 qemu_guest_random_seed_main(optarg, &error_fatal);
3210 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3212 case QEMU_OPTION_gdb:
3213 add_device_config(DEV_GDB, optarg);
3216 if (is_help_option(optarg)) {
3217 list_data_dirs = true;
3219 qemu_add_data_dir(optarg);
3222 case QEMU_OPTION_bios:
3223 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3226 case QEMU_OPTION_singlestep:
3233 keyboard_layout = optarg;
3235 case QEMU_OPTION_vga:
3244 w = strtol(p, (char **)&p, 10);
3247 error_report("invalid resolution or depth");
3253 h = strtol(p, (char **)&p, 10);
3258 depth = strtol(p, (char **)&p, 10);
3259 if (depth != 8 && depth != 15 && depth != 16 &&
3260 depth != 24 && depth != 32)
3262 } else if (*p == '\0') {
3263 depth = graphic_depth;
3270 graphic_depth = depth;
3273 case QEMU_OPTION_echr:
3276 term_escape_char = strtol(optarg, &r, 0);
3278 printf("Bad argument to echr\n");
3281 case QEMU_OPTION_monitor:
3282 default_monitor = 0;
3283 if (strncmp(optarg, "none", 4)) {
3284 monitor_parse(optarg, "readline", false);
3287 case QEMU_OPTION_qmp:
3288 monitor_parse(optarg, "control", false);
3289 default_monitor = 0;
3291 case QEMU_OPTION_qmp_pretty:
3292 monitor_parse(optarg, "control", true);
3293 default_monitor = 0;
3295 case QEMU_OPTION_mon:
3296 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3301 default_monitor = 0;
3303 case QEMU_OPTION_chardev:
3304 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3310 case QEMU_OPTION_fsdev:
3311 olist = qemu_find_opts("fsdev");
3313 error_report("fsdev support is disabled");
3316 opts = qemu_opts_parse_noisily(olist, optarg, true);
3321 case QEMU_OPTION_virtfs: {
3324 const char *writeout, *sock_fd, *socket, *path, *security_model;
3326 olist = qemu_find_opts("virtfs");
3328 error_report("virtfs support is disabled");
3331 opts = qemu_opts_parse_noisily(olist, optarg, true);
3336 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3337 qemu_opt_get(opts, "mount_tag") == NULL) {
3338 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3341 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3342 qemu_opts_id(opts) ?:
3343 qemu_opt_get(opts, "mount_tag"),
3346 error_report("duplicate or invalid fsdev id: %s",
3347 qemu_opt_get(opts, "mount_tag"));
3351 writeout = qemu_opt_get(opts, "writeout");
3353 #ifdef CONFIG_SYNC_FILE_RANGE
3354 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3356 error_report("writeout=immediate not supported "
3357 "on this platform");
3361 qemu_opt_set(fsdev, "fsdriver",
3362 qemu_opt_get(opts, "fsdriver"), &error_abort);
3363 path = qemu_opt_get(opts, "path");
3365 qemu_opt_set(fsdev, "path", path, &error_abort);
3367 security_model = qemu_opt_get(opts, "security_model");
3368 if (security_model) {
3369 qemu_opt_set(fsdev, "security_model", security_model,
3372 socket = qemu_opt_get(opts, "socket");
3374 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3376 sock_fd = qemu_opt_get(opts, "sock_fd");
3378 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3381 qemu_opt_set_bool(fsdev, "readonly",
3382 qemu_opt_get_bool(opts, "readonly", 0),
3384 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3386 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3387 qemu_opt_set(device, "fsdev",
3388 qemu_opts_id(fsdev), &error_abort);
3389 qemu_opt_set(device, "mount_tag",
3390 qemu_opt_get(opts, "mount_tag"), &error_abort);
3393 case QEMU_OPTION_virtfs_synth: {
3397 warn_report("'-virtfs_synth' is deprecated, please use "
3398 "'-fsdev synth' and '-device virtio-9p-...' "
3401 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3404 error_report("duplicate option: %s", "virtfs_synth");
3407 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3409 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3411 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3412 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3413 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3416 case QEMU_OPTION_serial:
3417 add_device_config(DEV_SERIAL, optarg);
3419 if (strncmp(optarg, "mon:", 4) == 0) {
3420 default_monitor = 0;
3423 case QEMU_OPTION_watchdog:
3425 error_report("only one watchdog option may be given");
3430 case QEMU_OPTION_watchdog_action:
3431 if (select_watchdog_action(optarg) == -1) {
3432 error_report("unknown -watchdog-action parameter");
3436 case QEMU_OPTION_parallel:
3437 add_device_config(DEV_PARALLEL, optarg);
3438 default_parallel = 0;
3439 if (strncmp(optarg, "mon:", 4) == 0) {
3440 default_monitor = 0;
3443 case QEMU_OPTION_debugcon:
3444 add_device_config(DEV_DEBUGCON, optarg);
3446 case QEMU_OPTION_loadvm:
3449 case QEMU_OPTION_full_screen:
3450 dpy.has_full_screen = true;
3451 dpy.full_screen = true;
3453 case QEMU_OPTION_alt_grab:
3456 case QEMU_OPTION_ctrl_grab:
3459 case QEMU_OPTION_no_quit:
3460 dpy.has_window_close = true;
3461 dpy.window_close = false;
3463 case QEMU_OPTION_sdl:
3465 dpy.type = DISPLAY_TYPE_SDL;
3468 error_report("SDL support is disabled");
3471 case QEMU_OPTION_pidfile:
3474 case QEMU_OPTION_win2k_hack:
3475 win2k_install_hack = 1;
3477 case QEMU_OPTION_acpitable:
3478 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3483 acpi_table_add(opts, &error_fatal);
3485 case QEMU_OPTION_smbios:
3486 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3491 smbios_entry_add(opts, &error_fatal);
3493 case QEMU_OPTION_fwcfg:
3494 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3500 case QEMU_OPTION_preconfig:
3501 preconfig_exit_requested = false;
3503 case QEMU_OPTION_enable_kvm:
3504 olist = qemu_find_opts("machine");
3505 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3508 case QEMU_OPTION_machine:
3509 olist = qemu_find_opts("machine");
3510 opts = qemu_opts_parse_noisily(olist, optarg, true);
3515 case QEMU_OPTION_no_kvm:
3516 olist = qemu_find_opts("machine");
3517 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3519 case QEMU_OPTION_accel:
3520 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3522 optarg = qemu_opt_get(accel_opts, "accel");
3523 if (!optarg || is_help_option(optarg)) {
3524 printf("Accelerators supported in QEMU binary:\n");
3525 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3527 for (el = accel_list; el; el = el->next) {
3528 gchar *typename = g_strdup(object_class_get_name(
3529 OBJECT_CLASS(el->data)));
3530 /* omit qtest which is used for tests only */
3531 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3532 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3533 gchar **optname = g_strsplit(typename,
3534 ACCEL_CLASS_SUFFIX, 0);
3535 printf("%s\n", optname[0]);
3540 g_slist_free(accel_list);
3543 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3544 false, &error_abort);
3545 qemu_opt_set(opts, "accel", optarg, &error_abort);
3547 case QEMU_OPTION_usb:
3548 olist = qemu_find_opts("machine");
3549 qemu_opts_parse_noisily(olist, "usb=on", false);
3551 case QEMU_OPTION_usbdevice:
3552 error_report("'-usbdevice' is deprecated, please use "
3553 "'-device usb-...' instead");
3554 olist = qemu_find_opts("machine");
3555 qemu_opts_parse_noisily(olist, "usb=on", false);
3556 add_device_config(DEV_USB, optarg);
3558 case QEMU_OPTION_device:
3559 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3564 case QEMU_OPTION_smp:
3565 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3570 case QEMU_OPTION_vnc:
3571 vnc_parse(optarg, &error_fatal);
3573 case QEMU_OPTION_no_acpi:
3576 case QEMU_OPTION_no_hpet:
3579 case QEMU_OPTION_no_reboot:
3582 case QEMU_OPTION_no_shutdown:
3585 case QEMU_OPTION_show_cursor:
3588 case QEMU_OPTION_uuid:
3589 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3590 error_report("failed to parse UUID string: wrong format");
3593 qemu_uuid_set = true;
3595 case QEMU_OPTION_option_rom:
3596 if (nb_option_roms >= MAX_OPTION_ROMS) {
3597 error_report("too many option ROMs");
3600 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3605 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3606 option_rom[nb_option_roms].bootindex =
3607 qemu_opt_get_number(opts, "bootindex", -1);
3608 if (!option_rom[nb_option_roms].name) {
3609 error_report("Option ROM file is not specified");
3614 case QEMU_OPTION_semihosting:
3615 qemu_semihosting_enable();
3617 case QEMU_OPTION_semihosting_config:
3618 if (qemu_semihosting_config_options(optarg) != 0) {
3622 case QEMU_OPTION_name:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3629 case QEMU_OPTION_prom_env:
3630 if (nb_prom_envs >= MAX_PROM_ENVS) {
3631 error_report("too many prom variables");
3634 prom_envs[nb_prom_envs] = optarg;
3637 case QEMU_OPTION_old_param:
3640 case QEMU_OPTION_rtc:
3641 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3647 case QEMU_OPTION_tb_size:
3649 error_report("TCG is disabled");
3652 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3653 error_report("Invalid argument to -tb-size");
3657 case QEMU_OPTION_icount:
3658 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3664 case QEMU_OPTION_incoming:
3666 runstate_set(RUN_STATE_INMIGRATE);
3670 case QEMU_OPTION_only_migratable:
3671 only_migratable = 1;
3673 case QEMU_OPTION_nodefaults:
3676 case QEMU_OPTION_xen_domid:
3677 if (!(xen_available())) {
3678 error_report("Option not supported for this target");
3681 xen_domid = atoi(optarg);
3683 case QEMU_OPTION_xen_attach:
3684 if (!(xen_available())) {
3685 error_report("Option not supported for this target");
3688 xen_mode = XEN_ATTACH;
3690 case QEMU_OPTION_xen_domid_restrict:
3691 if (!(xen_available())) {
3692 error_report("Option not supported for this target");
3695 xen_domid_restrict = true;
3697 case QEMU_OPTION_trace:
3699 trace_file = trace_opt_parse(optarg);
3701 case QEMU_OPTION_readconfig:
3703 int ret = qemu_read_config_file(optarg);
3705 error_report("read config %s: %s", optarg,
3711 case QEMU_OPTION_spice:
3712 olist = qemu_find_opts("spice");
3714 error_report("spice support is disabled");
3717 opts = qemu_opts_parse_noisily(olist, optarg, false);
3723 case QEMU_OPTION_writeconfig:
3726 if (strcmp(optarg, "-") == 0) {
3729 fp = fopen(optarg, "w");
3731 error_report("open %s: %s", optarg,
3736 qemu_config_write(fp);
3742 case QEMU_OPTION_qtest:
3743 qtest_chrdev = optarg;
3745 case QEMU_OPTION_qtest_log:
3748 case QEMU_OPTION_sandbox:
3749 olist = qemu_find_opts("sandbox");
3751 #ifndef CONFIG_SECCOMP
3752 error_report("-sandbox support is not enabled "
3753 "in this QEMU binary");
3758 opts = qemu_opts_parse_noisily(olist, optarg, true);
3763 case QEMU_OPTION_add_fd:
3765 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3771 error_report("File descriptor passing is disabled on this "
3776 case QEMU_OPTION_object:
3777 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3783 case QEMU_OPTION_realtime:
3784 warn_report("'-realtime mlock=...' is deprecated, please use "
3785 "'-overcommit mem-lock=...' instead");
3786 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3791 /* Don't override the -overcommit option if set */
3792 enable_mlock = enable_mlock ||
3793 qemu_opt_get_bool(opts, "mlock", true);
3795 case QEMU_OPTION_overcommit:
3796 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3801 /* Don't override the -realtime option if set */
3802 enable_mlock = enable_mlock ||
3803 qemu_opt_get_bool(opts, "mem-lock", false);
3804 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3806 case QEMU_OPTION_msg:
3807 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3812 configure_msg(opts);
3814 case QEMU_OPTION_dump_vmstate:
3815 if (vmstate_dump_file) {
3816 error_report("only one '-dump-vmstate' "
3817 "option may be given");
3820 vmstate_dump_file = fopen(optarg, "w");
3821 if (vmstate_dump_file == NULL) {
3822 error_report("open %s: %s", optarg, strerror(errno));
3826 case QEMU_OPTION_enable_sync_profile:
3829 case QEMU_OPTION_nouserconfig:
3830 /* Nothing to be parsed here. Especially, do not error out below. */
3833 if (os_parse_cmd_args(popt->index, optarg)) {
3834 error_report("Option not supported in this build");
3841 * Clear error location left behind by the loop.
3842 * Best done right after the loop. Do not insert code here!
3846 user_register_global_props();
3848 replay_configure(icount_opts);
3850 if (incoming && !preconfig_exit_requested) {
3851 error_report("'preconfig' and 'incoming' options are "
3852 "mutually exclusive");
3856 configure_rtc(qemu_find_opts_singleton("rtc"));
3858 machine_class = select_machine();
3859 object_set_machine_compat_props(machine_class->compat_props);
3861 set_memory_options(&ram_slots, &maxram_size, machine_class);
3864 rcu_disable_atfork();
3866 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3867 error_reportf_err(err, "cannot create PID file: ");
3871 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3872 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3874 if (qemu_init_main_loop(&main_loop_err)) {
3875 error_report_err(main_loop_err);
3879 #ifdef CONFIG_SECCOMP
3880 olist = qemu_find_opts_err("sandbox", NULL);
3882 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3886 qemu_opts_foreach(qemu_find_opts("name"),
3887 parse_name, NULL, &error_fatal);
3890 qemu_opts_foreach(qemu_find_opts("add-fd"),
3891 parse_add_fd, NULL, &error_fatal);
3893 qemu_opts_foreach(qemu_find_opts("add-fd"),
3894 cleanup_add_fd, NULL, &error_fatal);
3897 current_machine = MACHINE(object_new(object_class_get_name(
3898 OBJECT_CLASS(machine_class))));
3899 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3902 object_property_add_child(object_get_root(), "machine",
3903 OBJECT(current_machine), &error_abort);
3904 object_property_add_child(container_get(OBJECT(current_machine),
3906 "sysbus", OBJECT(sysbus_get_default()),
3909 if (machine_class->minimum_page_bits) {
3910 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3911 /* This would be a board error: specifying a minimum smaller than
3912 * a target's compile-time fixed setting.
3914 g_assert_not_reached();
3918 cpu_exec_init_all();
3920 if (machine_class->hw_version) {
3921 qemu_set_hw_version(machine_class->hw_version);
3924 if (cpu_option && is_help_option(cpu_option)) {
3925 list_cpus(cpu_option);
3929 if (!trace_init_backends()) {
3932 trace_init_file(trace_file);
3934 /* Open the logfile at this point and set the log mask if necessary.
3937 qemu_set_log_filename(log_file, &error_fatal);
3942 mask = qemu_str_to_log_mask(log_mask);
3944 qemu_print_log_usage(stdout);
3952 /* add configured firmware directories */
3953 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3954 for (i = 0; dirs[i] != NULL; i++) {
3955 qemu_add_data_dir(dirs[i]);
3959 /* try to find datadir relative to the executable path */
3960 dir = os_find_datadir();
3961 qemu_add_data_dir(dir);
3964 /* add the datadir specified when building */
3965 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3967 /* -L help lists the data directories and exits. */
3968 if (list_data_dirs) {
3969 for (i = 0; i < data_dir_idx; i++) {
3970 printf("%s\n", data_dir[i]);
3975 /* machine_class: default to UP */
3976 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3977 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3978 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3980 /* default to machine_class->default_cpus */
3981 current_machine->smp.cpus = machine_class->default_cpus;
3982 current_machine->smp.max_cpus = machine_class->default_cpus;
3983 current_machine->smp.cores = 1;
3984 current_machine->smp.threads = 1;
3986 machine_class->smp_parse(current_machine,
3987 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3989 /* sanity-check smp_cpus and max_cpus against machine_class */
3990 if (current_machine->smp.cpus < machine_class->min_cpus) {
3991 error_report("Invalid SMP CPUs %d. The min CPUs "
3992 "supported by machine '%s' is %d",
3993 current_machine->smp.cpus,
3994 machine_class->name, machine_class->min_cpus);
3997 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3998 error_report("Invalid SMP CPUs %d. The max CPUs "
3999 "supported by machine '%s' is %d",
4000 current_machine->smp.max_cpus,
4001 machine_class->name, machine_class->max_cpus);
4006 * Get the default machine options from the machine if it is not already
4007 * specified either by the configuration file or by the command line.
4009 if (machine_class->default_machine_opts) {
4010 qemu_opts_set_defaults(qemu_find_opts("machine"),
4011 machine_class->default_machine_opts, 0);
4014 qemu_opts_foreach(qemu_find_opts("device"),
4015 default_driver_check, NULL, NULL);
4016 qemu_opts_foreach(qemu_find_opts("global"),
4017 default_driver_check, NULL, NULL);
4019 if (!vga_model && !default_vga) {
4020 vga_interface_type = VGA_DEVICE;
4022 if (!has_defaults || machine_class->no_serial) {
4025 if (!has_defaults || machine_class->no_parallel) {
4026 default_parallel = 0;
4028 if (!has_defaults || machine_class->no_floppy) {
4031 if (!has_defaults || machine_class->no_cdrom) {
4034 if (!has_defaults || machine_class->no_sdcard) {
4037 if (!has_defaults) {
4038 default_monitor = 0;
4043 if (is_daemonized()) {
4044 if (!preconfig_exit_requested) {
4045 error_report("'preconfig' and 'daemonize' options are "
4046 "mutually exclusive");
4050 /* According to documentation and historically, -nographic redirects
4051 * serial port, parallel port and monitor to stdio, which does not work
4052 * with -daemonize. We can redirect these to null instead, but since
4053 * -nographic is legacy, let's just error out.
4054 * We disallow -nographic only if all other ports are not redirected
4055 * explicitly, to not break existing legacy setups which uses
4056 * -nographic _and_ redirects all ports explicitly - this is valid
4057 * usage, -nographic is just a no-op in this case.
4060 && (default_parallel || default_serial || default_monitor)) {
4061 error_report("-nographic cannot be used with -daemonize");
4064 #ifdef CONFIG_CURSES
4065 if (dpy.type == DISPLAY_TYPE_CURSES) {
4066 error_report("curses display cannot be used with -daemonize");
4073 if (default_parallel)
4074 add_device_config(DEV_PARALLEL, "null");
4075 if (default_serial && default_monitor) {
4076 add_device_config(DEV_SERIAL, "mon:stdio");
4079 add_device_config(DEV_SERIAL, "stdio");
4080 if (default_monitor)
4081 monitor_parse("stdio", "readline", false);
4085 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4086 if (default_parallel)
4087 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4088 if (default_monitor)
4089 monitor_parse("vc:80Cx24C", "readline", false);
4092 #if defined(CONFIG_VNC)
4093 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4097 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4098 if (!qemu_display_find_default(&dpy)) {
4099 dpy.type = DISPLAY_TYPE_NONE;
4100 #if defined(CONFIG_VNC)
4101 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4105 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4106 dpy.type = DISPLAY_TYPE_NONE;
4109 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4110 error_report("-alt-grab and -ctrl-grab are only valid "
4111 "for SDL, ignoring option");
4113 if (dpy.has_window_close &&
4114 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4115 error_report("-no-quit is only valid for GTK and SDL, "
4119 qemu_display_early_init(&dpy);
4120 qemu_console_early_init();
4122 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4123 #if defined(CONFIG_OPENGL)
4124 error_report("OpenGL is not supported by the display");
4126 error_report("OpenGL support is disabled");
4134 qemu_opts_foreach(qemu_find_opts("object"),
4135 user_creatable_add_opts_foreach,
4136 object_create_initial, &error_fatal);
4138 qemu_opts_foreach(qemu_find_opts("chardev"),
4139 chardev_init_func, NULL, &error_fatal);
4140 /* now chardevs have been created we may have semihosting to connect */
4141 qemu_semihosting_connect_chardevs();
4143 #ifdef CONFIG_VIRTFS
4144 qemu_opts_foreach(qemu_find_opts("fsdev"),
4145 fsdev_init_func, NULL, &error_fatal);
4148 if (qemu_opts_foreach(qemu_find_opts("device"),
4149 device_help_func, NULL, NULL)) {
4154 * Note: we need to create block backends before
4155 * machine_set_property(), so machine properties can refer to
4158 configure_blockdev(&bdo_queue, machine_class, snapshot);
4160 machine_opts = qemu_get_machine_opts();
4161 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4163 current_machine->ram_size = ram_size;
4164 current_machine->maxram_size = maxram_size;
4165 current_machine->ram_slots = ram_slots;
4168 * Note: uses machine properties such as kernel-irqchip, must run
4169 * after machine_set_property().
4171 configure_accelerator(current_machine, argv[0]);
4174 * Beware, QOM objects created before this point miss global and
4175 * compat properties.
4177 * Global properties get set up by qdev_prop_register_global(),
4178 * called from user_register_global_props(), and certain option
4179 * desugaring. Also in CPU feature desugaring (buried in
4180 * parse_cpu_option()), which happens below this point, but may
4181 * only target the CPU type, which can only be created after
4182 * parse_cpu_option() returned the type.
4184 * Machine compat properties: object_set_machine_compat_props().
4185 * Accelerator compat props: object_set_accelerator_compat_props(),
4186 * called from configure_accelerator().
4189 if (!qtest_enabled() && machine_class->deprecation_reason) {
4190 error_report("Machine type '%s' is deprecated: %s",
4191 machine_class->name, machine_class->deprecation_reason);
4195 * Note: creates a QOM object, must run only after global and
4196 * compat properties have been set up.
4198 migration_object_init();
4201 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4204 machine_opts = qemu_get_machine_opts();
4205 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4206 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4207 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4208 bios_name = qemu_opt_get(machine_opts, "firmware");
4210 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4212 boot_order = qemu_opt_get(opts, "order");
4214 validate_bootdevices(boot_order, &error_fatal);
4217 boot_once = qemu_opt_get(opts, "once");
4219 validate_bootdevices(boot_once, &error_fatal);
4222 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4223 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4227 boot_order = machine_class->default_boot_order;
4230 if (!kernel_cmdline) {
4231 kernel_cmdline = "";
4232 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4235 linux_boot = (kernel_filename != NULL);
4237 if (!linux_boot && *kernel_cmdline != '\0') {
4238 error_report("-append only allowed with -kernel option");
4242 if (!linux_boot && initrd_filename != NULL) {
4243 error_report("-initrd only allowed with -kernel option");
4247 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4248 /* fall back to the -kernel/-append */
4249 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4252 /* spice needs the timers to be initialized by this point */
4257 if (!tcg_enabled()) {
4258 error_report("-icount is not allowed with hardware virtualization");
4261 configure_icount(icount_opts, &error_abort);
4262 qemu_opts_del(icount_opts);
4265 if (tcg_enabled()) {
4266 qemu_tcg_configure(accel_opts, &error_fatal);
4270 QemuOptsList *net = qemu_find_opts("net");
4271 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4273 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4277 if (net_init_clients(&err) < 0) {
4278 error_report_err(err);
4282 qemu_opts_foreach(qemu_find_opts("object"),
4283 user_creatable_add_opts_foreach,
4284 object_create_delayed, &error_fatal);
4288 /* init the bluetooth world */
4289 if (foreach_device_config(DEV_BT, bt_parse))
4292 if (!xen_enabled()) {
4293 /* On 32-bit hosts, QEMU is limited by virtual address space */
4294 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4295 error_report("at most 2047 MB RAM can be simulated");
4302 dirty_bitmap_mig_init();
4304 qemu_opts_foreach(qemu_find_opts("mon"),
4305 mon_init_func, NULL, &error_fatal);
4307 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4309 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4311 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4314 /* If no default VGA is requested, the default is "none". */
4316 vga_model = get_default_vga_model(machine_class);
4319 select_vgahw(machine_class, vga_model);
4323 i = select_watchdog(watchdog);
4325 exit (i == 1 ? 1 : 0);
4328 /* This checkpoint is required by replay to separate prior clock
4329 reading from the other reads, because timer polling functions query
4330 clock values from the log. */
4331 replay_checkpoint(CHECKPOINT_INIT);
4332 qdev_machine_init();
4334 current_machine->boot_order = boot_order;
4336 /* parse features once if machine provides default cpu_type */
4337 current_machine->cpu_type = machine_class->default_cpu_type;
4339 current_machine->cpu_type = parse_cpu_option(cpu_option);
4341 parse_numa_opts(current_machine);
4343 /* do monitor/qmp handling at preconfig state if requested */
4346 audio_init_audiodevs();
4348 /* from here on runstate is RUN_STATE_PRELAUNCH */
4349 machine_run_board_init(current_machine);
4355 if (hax_enabled()) {
4359 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4360 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4362 /* init USB devices */
4363 if (machine_usb(current_machine)) {
4364 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4368 /* Check if IGD GFX passthrough. */
4371 /* init generic devices */
4372 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4373 qemu_opts_foreach(qemu_find_opts("device"),
4374 device_init_func, NULL, &error_fatal);
4376 cpu_synchronize_all_post_init();
4378 rom_reset_order_override();
4380 /* Did we create any drives that we failed to create a device for? */
4381 drive_check_orphaned();
4383 /* Don't warn about the default network setup that you get if
4384 * no command line -net or -netdev options are specified. There
4385 * are two cases that we would otherwise complain about:
4386 * (1) board doesn't support a NIC but the implicit "-net nic"
4388 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4389 * sets up a nic that isn't connected to anything.
4391 if (!default_net && (!qtest_enabled() || has_defaults)) {
4392 net_check_clients();
4396 qemu_boot_set(boot_once, &error_fatal);
4397 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4400 /* init local displays */
4401 ds = init_displaystate();
4402 qemu_display_init(ds, &dpy);
4404 /* must be after terminal init, SDL library changes signal handlers */
4405 os_setup_signal_handling();
4407 /* init remote displays */
4409 qemu_opts_foreach(qemu_find_opts("vnc"),
4410 vnc_init_func, NULL, &error_fatal);
4414 qemu_spice_display_init();
4417 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4421 qdev_machine_creation_done();
4423 /* TODO: once all bus devices are qdevified, this should be done
4424 * when bus is created by qdev.c */
4425 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4426 qemu_run_machine_init_done_notifiers();
4428 if (rom_check_and_register_reset() != 0) {
4429 error_report("rom check and register reset failed");
4435 /* This checkpoint is required by replay to separate prior clock
4436 reading from the other reads, because timer polling functions query
4437 clock values from the log. */
4438 replay_checkpoint(CHECKPOINT_RESET);
4439 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4440 register_global_state();
4442 Error *local_err = NULL;
4443 if (load_snapshot(loadvm, &local_err) < 0) {
4444 error_report_err(local_err);
4449 if (replay_mode != REPLAY_MODE_NONE) {
4450 replay_vmstate_init();
4453 qdev_prop_check_globals();
4454 if (vmstate_dump_file) {
4456 dump_vmstate_json_to_file(vmstate_dump_file);
4461 Error *local_err = NULL;
4462 qemu_start_incoming_migration(incoming, &local_err);
4464 error_reportf_err(local_err, "-incoming %s: ", incoming);
4467 } else if (autostart) {
4471 accel_setup_post(current_machine);
4476 gdbserver_cleanup();
4479 * cleaning up the migration object cancels any existing migration
4480 * try to do this early so that it also stops using devices.
4482 migration_shutdown();
4485 * We must cancel all block jobs while the block layer is drained,
4486 * or cancelling will be affected by throttling and thus may block
4487 * for an extended period of time.
4488 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4489 * it in the drained section.
4490 * We do not need to end this section, because we do not want any
4491 * requests happening from here on anyway.
4493 bdrv_drain_all_begin();
4495 /* No more vcpu or device emulation activity beyond this point */
4498 job_cancel_sync_all();
4503 /* vhost-user must be cleaned up before chardevs. */
4509 user_creatable_cleanup();
4510 /* TODO: unref root container, check all devices are ok */