4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
35 #if defined(__APPLE__) || defined(main)
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
40 return qemu_main(argc, argv, NULL);
43 #define main qemu_main
45 #endif /* CONFIG_SDL */
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
103 #include "fsdev/qemu-fsdev.h"
105 #include "sysemu/qtest.h"
107 #include "disas/disas.h"
110 #include "slirp/libslirp.h"
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qapi-commands-ui.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
135 #define MAX_VIRTIO_CONSOLES 1
137 static const char *data_dir[16];
138 static int data_dir_idx;
139 const char *bios_name = NULL;
140 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
142 const char* keyboard_layout = NULL;
144 const char *mem_path = NULL;
145 int mem_prealloc = 0; /* force preallocation of physical target memory */
146 bool enable_mlock = false;
147 bool enable_cpu_pm = false;
149 NICInfo nd_table[MAX_NICS];
155 } rtc_base_type = RTC_BASE_UTC;
156 static time_t rtc_ref_start_datetime;
157 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
158 static int rtc_host_datetime_offset = -1; /* valid & used only with
160 QEMUClockType rtc_clock;
161 int vga_interface_type = VGA_NONE;
162 static DisplayOptions dpy;
163 static int num_serial_hds;
164 static Chardev **serial_hds;
165 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
166 int win2k_install_hack = 0;
169 unsigned int max_cpus;
172 int acpi_enabled = 1;
175 static int no_reboot;
178 int graphic_rotate = 0;
179 const char *watchdog;
180 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
183 const char *qemu_name;
186 unsigned int nb_prom_envs = 0;
187 const char *prom_envs[MAX_PROM_ENVS];
190 uint8_t *boot_splash_filedata;
191 size_t boot_splash_filedata_size;
192 bool wakeup_suspend_enabled;
194 int icount_align_option;
196 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
197 * little-endian "wire format" described in the SMBIOS 2.6 specification.
202 static NotifierList exit_notifiers =
203 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
205 static NotifierList machine_init_done_notifiers =
206 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
210 enum xen_mode xen_mode = XEN_EMULATE;
211 bool xen_domid_restrict;
213 static int has_defaults = 1;
214 static int default_serial = 1;
215 static int default_parallel = 1;
216 static int default_monitor = 1;
217 static int default_floppy = 1;
218 static int default_cdrom = 1;
219 static int default_sdcard = 1;
220 static int default_vga = 1;
221 static int default_net = 1;
227 { .driver = "isa-serial", .flag = &default_serial },
228 { .driver = "isa-parallel", .flag = &default_parallel },
229 { .driver = "isa-fdc", .flag = &default_floppy },
230 { .driver = "floppy", .flag = &default_floppy },
231 { .driver = "ide-cd", .flag = &default_cdrom },
232 { .driver = "ide-hd", .flag = &default_cdrom },
233 { .driver = "ide-drive", .flag = &default_cdrom },
234 { .driver = "scsi-cd", .flag = &default_cdrom },
235 { .driver = "scsi-hd", .flag = &default_cdrom },
236 { .driver = "VGA", .flag = &default_vga },
237 { .driver = "isa-vga", .flag = &default_vga },
238 { .driver = "cirrus-vga", .flag = &default_vga },
239 { .driver = "isa-cirrus-vga", .flag = &default_vga },
240 { .driver = "vmware-svga", .flag = &default_vga },
241 { .driver = "qxl-vga", .flag = &default_vga },
242 { .driver = "virtio-vga", .flag = &default_vga },
245 static QemuOptsList qemu_rtc_opts = {
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
252 .type = QEMU_OPT_STRING,
255 .type = QEMU_OPT_STRING,
258 .type = QEMU_OPT_STRING,
260 { /* end of list */ }
264 static QemuOptsList qemu_option_rom_opts = {
265 .name = "option-rom",
266 .implied_opt_name = "romfile",
267 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
271 .type = QEMU_OPT_NUMBER,
274 .type = QEMU_OPT_STRING,
276 { /* end of list */ }
280 static QemuOptsList qemu_machine_opts = {
282 .implied_opt_name = "type",
284 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
287 * no elements => accept any
288 * sanity checking will happen later
289 * when setting machine properties
295 static QemuOptsList qemu_accel_opts = {
297 .implied_opt_name = "accel",
298 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
303 .type = QEMU_OPT_STRING,
304 .help = "Select the type of accelerator",
308 .type = QEMU_OPT_STRING,
309 .help = "Enable/disable multi-threaded TCG",
311 { /* end of list */ }
315 static QemuOptsList qemu_boot_opts = {
317 .implied_opt_name = "order",
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
323 .type = QEMU_OPT_STRING,
326 .type = QEMU_OPT_STRING,
329 .type = QEMU_OPT_BOOL,
332 .type = QEMU_OPT_STRING,
334 .name = "splash-time",
335 .type = QEMU_OPT_NUMBER,
337 .name = "reboot-timeout",
338 .type = QEMU_OPT_NUMBER,
341 .type = QEMU_OPT_BOOL,
347 static QemuOptsList qemu_add_fd_opts = {
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
353 .type = QEMU_OPT_NUMBER,
354 .help = "file descriptor of which a duplicate is added to fd set",
357 .type = QEMU_OPT_NUMBER,
358 .help = "ID of the fd set to add fd to",
361 .type = QEMU_OPT_STRING,
362 .help = "free-form string used to describe fd",
364 { /* end of list */ }
368 static QemuOptsList qemu_object_opts = {
370 .implied_opt_name = "qom-type",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
377 static QemuOptsList qemu_tpmdev_opts = {
379 .implied_opt_name = "type",
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
382 /* options are defined in the TPM backends */
383 { /* end of list */ }
387 static QemuOptsList qemu_realtime_opts = {
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
393 .type = QEMU_OPT_BOOL,
395 { /* end of list */ }
399 static QemuOptsList qemu_overcommit_opts = {
400 .name = "overcommit",
401 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
405 .type = QEMU_OPT_BOOL,
409 .type = QEMU_OPT_BOOL,
411 { /* end of list */ }
415 static QemuOptsList qemu_msg_opts = {
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
421 .type = QEMU_OPT_BOOL,
423 { /* end of list */ }
427 static QemuOptsList qemu_name_opts = {
429 .implied_opt_name = "guest",
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
435 .type = QEMU_OPT_STRING,
436 .help = "Sets the name of the guest.\n"
437 "This name will be displayed in the SDL window caption.\n"
438 "The name will also be used for the VNC server",
441 .type = QEMU_OPT_STRING,
442 .help = "Sets the name of the QEMU process, as shown in top etc",
444 .name = "debug-threads",
445 .type = QEMU_OPT_BOOL,
446 .help = "When enabled, name the individual threads; defaults off.\n"
447 "NOTE: The thread names are for debugging and not a\n"
450 { /* End of list */ }
454 static QemuOptsList qemu_mem_opts = {
456 .implied_opt_name = "size",
457 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
462 .type = QEMU_OPT_SIZE,
466 .type = QEMU_OPT_NUMBER,
470 .type = QEMU_OPT_SIZE,
472 { /* end of list */ }
476 static QemuOptsList qemu_icount_opts = {
478 .implied_opt_name = "shift",
480 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
484 .type = QEMU_OPT_STRING,
487 .type = QEMU_OPT_BOOL,
490 .type = QEMU_OPT_BOOL,
493 .type = QEMU_OPT_STRING,
496 .type = QEMU_OPT_STRING,
498 .name = "rrsnapshot",
499 .type = QEMU_OPT_STRING,
501 { /* end of list */ }
505 static QemuOptsList qemu_semihosting_config_opts = {
506 .name = "semihosting-config",
507 .implied_opt_name = "enable",
508 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
512 .type = QEMU_OPT_BOOL,
515 .type = QEMU_OPT_STRING,
518 .type = QEMU_OPT_STRING,
520 { /* end of list */ }
524 static QemuOptsList qemu_fw_cfg_opts = {
526 .implied_opt_name = "name",
527 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the fw_cfg name of the blob to be inserted",
535 .type = QEMU_OPT_STRING,
536 .help = "Sets the name of the file from which "
537 "the fw_cfg blob will be loaded",
540 .type = QEMU_OPT_STRING,
541 .help = "Sets content of the blob to be inserted from a string",
543 { /* end of list */ }
548 * Get machine options
550 * Returns: machine options (never null).
552 QemuOpts *qemu_get_machine_opts(void)
554 return qemu_find_opts_singleton("machine");
557 const char *qemu_get_vm_name(void)
562 static void res_free(void)
564 g_free(boot_splash_filedata);
565 boot_splash_filedata = NULL;
568 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
570 const char *driver = qemu_opt_get(opts, "driver");
575 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
576 if (strcmp(default_list[i].driver, driver) != 0)
578 *(default_list[i].flag) = 0;
583 /***********************************************************/
586 static RunState current_run_state = RUN_STATE_PRECONFIG;
588 /* We use RUN_STATE__MAX but any invalid value will do */
589 static RunState vmstop_requested = RUN_STATE__MAX;
590 static QemuMutex vmstop_lock;
595 } RunStateTransition;
597 static const RunStateTransition runstate_transitions_def[] = {
599 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
600 /* Early switch to inmigrate state to allow -incoming CLI option work
601 * as it used to. TODO: delay actual switching to inmigrate state to
602 * the point after machine is built and remove this hack.
604 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
607 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
608 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
610 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
611 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
613 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
614 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
617 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
620 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
621 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
628 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
632 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_PAUSED, RUN_STATE_COLO},
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
642 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
651 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
652 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_COLO, RUN_STATE_RUNNING },
656 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
657 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
658 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
660 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
662 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
664 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
665 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
666 { RUN_STATE_RUNNING, RUN_STATE_COLO},
668 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
671 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
674 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
675 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
676 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
677 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
678 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
679 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
681 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
682 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
684 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
690 { RUN_STATE__MAX, RUN_STATE__MAX },
693 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
695 bool runstate_check(RunState state)
697 return current_run_state == state;
700 bool runstate_store(char *str, size_t size)
702 const char *state = RunState_str(current_run_state);
703 size_t len = strlen(state) + 1;
708 memcpy(str, state, len);
712 static void runstate_init(void)
714 const RunStateTransition *p;
716 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
717 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
718 runstate_valid_transitions[p->from][p->to] = true;
721 qemu_mutex_init(&vmstop_lock);
724 /* This function will abort() on invalid state transitions */
725 void runstate_set(RunState new_state)
727 assert(new_state < RUN_STATE__MAX);
729 trace_runstate_set(current_run_state, RunState_str(current_run_state),
730 new_state, RunState_str(current_run_state));
732 if (current_run_state == new_state) {
736 if (!runstate_valid_transitions[current_run_state][new_state]) {
737 error_report("invalid runstate transition: '%s' -> '%s'",
738 RunState_str(current_run_state),
739 RunState_str(new_state));
743 current_run_state = new_state;
746 int runstate_is_running(void)
748 return runstate_check(RUN_STATE_RUNNING);
751 bool runstate_needs_reset(void)
753 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
754 runstate_check(RUN_STATE_SHUTDOWN);
757 StatusInfo *qmp_query_status(Error **errp)
759 StatusInfo *info = g_malloc0(sizeof(*info));
761 info->running = runstate_is_running();
762 info->singlestep = singlestep;
763 info->status = current_run_state;
768 bool qemu_vmstop_requested(RunState *r)
770 qemu_mutex_lock(&vmstop_lock);
771 *r = vmstop_requested;
772 vmstop_requested = RUN_STATE__MAX;
773 qemu_mutex_unlock(&vmstop_lock);
774 return *r < RUN_STATE__MAX;
777 void qemu_system_vmstop_request_prepare(void)
779 qemu_mutex_lock(&vmstop_lock);
782 void qemu_system_vmstop_request(RunState state)
784 vmstop_requested = state;
785 qemu_mutex_unlock(&vmstop_lock);
789 /***********************************************************/
790 /* RTC reference time/date access */
791 static time_t qemu_ref_timedate(QEMUClockType clock)
793 time_t value = qemu_clock_get_ms(clock) / 1000;
795 case QEMU_CLOCK_REALTIME:
796 value -= rtc_realtime_clock_offset;
798 case QEMU_CLOCK_VIRTUAL:
799 value += rtc_ref_start_datetime;
801 case QEMU_CLOCK_HOST:
802 if (rtc_base_type == RTC_BASE_DATETIME) {
803 value -= rtc_host_datetime_offset;
812 void qemu_get_timedate(struct tm *tm, int offset)
814 time_t ti = qemu_ref_timedate(rtc_clock);
818 switch (rtc_base_type) {
819 case RTC_BASE_DATETIME:
823 case RTC_BASE_LOCALTIME:
824 localtime_r(&ti, tm);
829 int qemu_timedate_diff(struct tm *tm)
833 switch (rtc_base_type) {
834 case RTC_BASE_DATETIME:
836 seconds = mktimegm(tm);
838 case RTC_BASE_LOCALTIME:
841 tmp.tm_isdst = -1; /* use timezone to figure it out */
842 seconds = mktime(&tmp);
849 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
852 static void configure_rtc_base_datetime(const char *startdate)
854 time_t rtc_start_datetime;
857 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
858 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
860 } else if (sscanf(startdate, "%d-%d-%d",
861 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
870 rtc_start_datetime = mktimegm(&tm);
871 if (rtc_start_datetime == -1) {
873 error_report("invalid datetime format");
874 error_printf("valid formats: "
875 "'2006-06-17T16:01:21' or '2006-06-17'\n");
878 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
879 rtc_ref_start_datetime = rtc_start_datetime;
882 static void configure_rtc(QemuOpts *opts)
887 rtc_clock = QEMU_CLOCK_HOST;
888 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
889 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
891 value = qemu_opt_get(opts, "base");
893 if (!strcmp(value, "utc")) {
894 rtc_base_type = RTC_BASE_UTC;
895 } else if (!strcmp(value, "localtime")) {
896 Error *blocker = NULL;
897 rtc_base_type = RTC_BASE_LOCALTIME;
898 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
899 "-rtc base=localtime");
900 replay_add_blocker(blocker);
902 rtc_base_type = RTC_BASE_DATETIME;
903 configure_rtc_base_datetime(value);
906 value = qemu_opt_get(opts, "clock");
908 if (!strcmp(value, "host")) {
909 rtc_clock = QEMU_CLOCK_HOST;
910 } else if (!strcmp(value, "rt")) {
911 rtc_clock = QEMU_CLOCK_REALTIME;
912 } else if (!strcmp(value, "vm")) {
913 rtc_clock = QEMU_CLOCK_VIRTUAL;
915 error_report("invalid option value '%s'", value);
919 value = qemu_opt_get(opts, "driftfix");
921 if (!strcmp(value, "slew")) {
922 static GlobalProperty slew_lost_ticks = {
923 .driver = "mc146818rtc",
924 .property = "lost_tick_policy",
928 qdev_prop_register_global(&slew_lost_ticks);
929 } else if (!strcmp(value, "none")) {
930 /* discard is default */
932 error_report("invalid option value '%s'", value);
938 /***********************************************************/
939 /* Bluetooth support */
942 static struct HCIInfo *hci_table[MAX_NICS];
944 struct HCIInfo *qemu_next_hci(void)
946 if (cur_hci == nb_hcis)
949 return hci_table[cur_hci++];
952 static int bt_hci_parse(const char *str)
957 if (nb_hcis >= MAX_NICS) {
958 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
971 bdaddr.b[5] = 0x56 + nb_hcis;
972 hci->bdaddr_set(hci, bdaddr.b);
974 hci_table[nb_hcis++] = hci;
979 static void bt_vhci_add(int vlan_id)
981 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
984 warn_report("adding a VHCI to an empty scatternet %i",
987 bt_vhci_init(bt_new_hci(vlan));
990 static struct bt_device_s *bt_device_add(const char *opt)
992 struct bt_scatternet_s *vlan;
994 char *endp = strstr(opt, ",vlan=");
995 int len = (endp ? endp - opt : strlen(opt)) + 1;
998 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1001 vlan_id = strtol(endp + 6, &endp, 0);
1003 error_report("unrecognised bluetooth vlan Id");
1008 vlan = qemu_find_bt_vlan(vlan_id);
1011 warn_report("adding a slave device to an empty scatternet %i",
1014 if (!strcmp(devname, "keyboard"))
1015 return bt_keyboard_init(vlan);
1017 error_report("unsupported bluetooth device '%s'", devname);
1021 static int bt_parse(const char *opt)
1023 const char *endp, *p;
1026 if (strstart(opt, "hci", &endp)) {
1027 if (!*endp || *endp == ',') {
1029 if (!strstart(endp, ",vlan=", 0))
1032 return bt_hci_parse(opt);
1034 } else if (strstart(opt, "vhci", &endp)) {
1035 if (!*endp || *endp == ',') {
1037 if (strstart(endp, ",vlan=", &p)) {
1038 vlan = strtol(p, (char **) &endp, 0);
1040 error_report("bad scatternet '%s'", p);
1044 error_report("bad parameter '%s'", endp + 1);
1053 } else if (strstart(opt, "device:", &endp))
1054 return !bt_device_add(endp);
1056 error_report("bad bluetooth parameter '%s'", opt);
1060 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1062 const char *proc_name;
1064 if (qemu_opt_get(opts, "debug-threads")) {
1065 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1067 qemu_name = qemu_opt_get(opts, "guest");
1069 proc_name = qemu_opt_get(opts, "process");
1071 os_set_proc_name(proc_name);
1077 bool defaults_enabled(void)
1079 return has_defaults;
1083 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1085 int fd, dupfd, flags;
1087 const char *fd_opaque = NULL;
1090 fd = qemu_opt_get_number(opts, "fd", -1);
1091 fdset_id = qemu_opt_get_number(opts, "set", -1);
1092 fd_opaque = qemu_opt_get(opts, "opaque");
1095 error_setg(errp, "fd option is required and must be non-negative");
1099 if (fd <= STDERR_FILENO) {
1100 error_setg(errp, "fd cannot be a standard I/O stream");
1105 * All fds inherited across exec() necessarily have FD_CLOEXEC
1106 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1108 flags = fcntl(fd, F_GETFD);
1109 if (flags == -1 || (flags & FD_CLOEXEC)) {
1110 error_setg(errp, "fd is not valid or already in use");
1115 error_setg(errp, "set option is required and must be non-negative");
1119 #ifdef F_DUPFD_CLOEXEC
1120 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1124 qemu_set_cloexec(dupfd);
1128 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1132 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1133 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1140 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1144 fd = qemu_opt_get_number(opts, "fd", -1);
1151 /***********************************************************/
1152 /* QEMU Block devices */
1154 #define HD_OPTS "media=disk"
1155 #define CDROM_OPTS "media=cdrom"
1157 #define PFLASH_OPTS ""
1161 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1163 BlockInterfaceType *block_default_type = opaque;
1165 return drive_new(opts, *block_default_type, errp) == NULL;
1168 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1170 if (qemu_opt_get(opts, "snapshot") == NULL) {
1171 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1176 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1177 int index, const char *optstr)
1182 if (!enable || drive_get_by_index(type, index)) {
1186 opts = drive_add(type, index, NULL, optstr);
1188 drive_enable_snapshot(NULL, opts, NULL);
1191 dinfo = drive_new(opts, type, &error_abort);
1192 dinfo->is_default = true;
1196 static QemuOptsList qemu_smp_opts = {
1198 .implied_opt_name = "cpus",
1199 .merge_lists = true,
1200 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1204 .type = QEMU_OPT_NUMBER,
1207 .type = QEMU_OPT_NUMBER,
1210 .type = QEMU_OPT_NUMBER,
1213 .type = QEMU_OPT_NUMBER,
1216 .type = QEMU_OPT_NUMBER,
1218 { /*End of list */ }
1222 static void smp_parse(QemuOpts *opts)
1225 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1226 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1227 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1228 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1230 /* compute missing values, prefer sockets over cores over threads */
1231 if (cpus == 0 || sockets == 0) {
1232 cores = cores > 0 ? cores : 1;
1233 threads = threads > 0 ? threads : 1;
1235 sockets = sockets > 0 ? sockets : 1;
1236 cpus = cores * threads * sockets;
1238 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1239 sockets = max_cpus / (cores * threads);
1241 } else if (cores == 0) {
1242 threads = threads > 0 ? threads : 1;
1243 cores = cpus / (sockets * threads);
1244 cores = cores > 0 ? cores : 1;
1245 } else if (threads == 0) {
1246 threads = cpus / (cores * sockets);
1247 threads = threads > 0 ? threads : 1;
1248 } else if (sockets * cores * threads < cpus) {
1249 error_report("cpu topology: "
1250 "sockets (%u) * cores (%u) * threads (%u) < "
1252 sockets, cores, threads, cpus);
1256 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1258 if (max_cpus < cpus) {
1259 error_report("maxcpus must be equal to or greater than smp");
1263 if (sockets * cores * threads > max_cpus) {
1264 error_report("cpu topology: "
1265 "sockets (%u) * cores (%u) * threads (%u) > "
1267 sockets, cores, threads, max_cpus);
1271 if (sockets * cores * threads != max_cpus) {
1272 warn_report("Invalid CPU topology deprecated: "
1273 "sockets (%u) * cores (%u) * threads (%u) "
1275 sockets, cores, threads, max_cpus);
1280 smp_threads = threads;
1284 Error *blocker = NULL;
1285 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1286 replay_add_blocker(blocker);
1290 static void realtime_init(void)
1293 if (os_mlock() < 0) {
1294 error_report("locking memory failed");
1301 static void configure_msg(QemuOpts *opts)
1303 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1306 /***********************************************************/
1309 typedef struct SemihostingConfig {
1311 SemihostingTarget target;
1314 const char *cmdline; /* concatenated argv */
1315 } SemihostingConfig;
1317 static SemihostingConfig semihosting;
1319 bool semihosting_enabled(void)
1321 return semihosting.enabled;
1324 SemihostingTarget semihosting_get_target(void)
1326 return semihosting.target;
1329 const char *semihosting_get_arg(int i)
1331 if (i >= semihosting.argc) {
1334 return semihosting.argv[i];
1337 int semihosting_get_argc(void)
1339 return semihosting.argc;
1342 const char *semihosting_get_cmdline(void)
1344 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1345 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1347 return semihosting.cmdline;
1350 static int add_semihosting_arg(void *opaque,
1351 const char *name, const char *val,
1354 SemihostingConfig *s = opaque;
1355 if (strcmp(name, "arg") == 0) {
1357 /* one extra element as g_strjoinv() expects NULL-terminated array */
1358 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1359 s->argv[s->argc - 1] = val;
1360 s->argv[s->argc] = NULL;
1365 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1366 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1371 add_semihosting_arg(&semihosting, "arg", file, NULL);
1373 /* split -append and initialize argv[1..n] */
1374 cmd_token = strtok(g_strdup(cmd), " ");
1376 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1377 cmd_token = strtok(NULL, " ");
1381 /* Now we still need this for compatibility with XEN. */
1382 bool has_igd_gfx_passthru;
1383 static void igd_gfx_passthru(void)
1385 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1388 /***********************************************************/
1391 static int usb_device_add(const char *devname)
1393 USBDevice *dev = NULL;
1395 if (!machine_usb(current_machine)) {
1399 dev = usbdevice_create(devname);
1406 static int usb_parse(const char *cmdline)
1409 r = usb_device_add(cmdline);
1411 error_report("could not add USB device '%s'", cmdline);
1416 /***********************************************************/
1417 /* machine registration */
1419 MachineState *current_machine;
1421 static MachineClass *find_machine(const char *name)
1423 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1424 MachineClass *mc = NULL;
1426 for (el = machines; el; el = el->next) {
1427 MachineClass *temp = el->data;
1429 if (!strcmp(temp->name, name)) {
1434 !strcmp(temp->alias, name)) {
1440 g_slist_free(machines);
1444 MachineClass *find_default_machine(void)
1446 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1447 MachineClass *mc = NULL;
1449 for (el = machines; el; el = el->next) {
1450 MachineClass *temp = el->data;
1452 if (temp->is_default) {
1458 g_slist_free(machines);
1462 MachineInfoList *qmp_query_machines(Error **errp)
1464 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1465 MachineInfoList *mach_list = NULL;
1467 for (el = machines; el; el = el->next) {
1468 MachineClass *mc = el->data;
1469 MachineInfoList *entry;
1472 info = g_malloc0(sizeof(*info));
1473 if (mc->is_default) {
1474 info->has_is_default = true;
1475 info->is_default = true;
1479 info->has_alias = true;
1480 info->alias = g_strdup(mc->alias);
1483 info->name = g_strdup(mc->name);
1484 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1485 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1487 entry = g_malloc0(sizeof(*entry));
1488 entry->value = info;
1489 entry->next = mach_list;
1493 g_slist_free(machines);
1497 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1499 ObjectProperty *prop;
1500 ObjectPropertyIterator iter;
1502 if (!qemu_opt_has_help_opt(opts)) {
1506 object_property_iter_init(&iter, OBJECT(machine));
1507 while ((prop = object_property_iter_next(&iter))) {
1512 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1513 prop->name, prop->type);
1514 if (prop->description) {
1515 error_printf(" (%s)\n", prop->description);
1524 struct vm_change_state_entry {
1525 VMChangeStateHandler *cb;
1527 QLIST_ENTRY (vm_change_state_entry) entries;
1530 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1532 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1535 VMChangeStateEntry *e;
1537 e = g_malloc0(sizeof (*e));
1541 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1545 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1547 QLIST_REMOVE (e, entries);
1551 void vm_state_notify(int running, RunState state)
1553 VMChangeStateEntry *e, *next;
1555 trace_vm_state_notify(running, state, RunState_str(state));
1557 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1558 e->cb(e->opaque, running, state);
1562 static ShutdownCause reset_requested;
1563 static ShutdownCause shutdown_requested;
1564 static int shutdown_signal;
1565 static pid_t shutdown_pid;
1566 static int powerdown_requested;
1567 static int debug_requested;
1568 static int suspend_requested;
1569 static bool preconfig_exit_requested = true;
1570 static WakeupReason wakeup_reason;
1571 static NotifierList powerdown_notifiers =
1572 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1573 static NotifierList suspend_notifiers =
1574 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1575 static NotifierList wakeup_notifiers =
1576 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1577 static NotifierList shutdown_notifiers =
1578 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1579 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1581 ShutdownCause qemu_shutdown_requested_get(void)
1583 return shutdown_requested;
1586 ShutdownCause qemu_reset_requested_get(void)
1588 return reset_requested;
1591 static int qemu_shutdown_requested(void)
1593 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1596 static void qemu_kill_report(void)
1598 if (!qtest_driver() && shutdown_signal) {
1599 if (shutdown_pid == 0) {
1600 /* This happens for eg ^C at the terminal, so it's worth
1601 * avoiding printing an odd message in that case.
1603 error_report("terminating on signal %d", shutdown_signal);
1605 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1607 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1608 shutdown_signal, shutdown_pid,
1609 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1610 g_free(shutdown_cmd);
1612 shutdown_signal = 0;
1616 static ShutdownCause qemu_reset_requested(void)
1618 ShutdownCause r = reset_requested;
1620 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1621 reset_requested = SHUTDOWN_CAUSE_NONE;
1624 return SHUTDOWN_CAUSE_NONE;
1627 static int qemu_suspend_requested(void)
1629 int r = suspend_requested;
1630 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1631 suspend_requested = 0;
1637 static WakeupReason qemu_wakeup_requested(void)
1639 return wakeup_reason;
1642 static int qemu_powerdown_requested(void)
1644 int r = powerdown_requested;
1645 powerdown_requested = 0;
1649 static int qemu_debug_requested(void)
1651 int r = debug_requested;
1652 debug_requested = 0;
1656 void qemu_exit_preconfig_request(void)
1658 preconfig_exit_requested = true;
1662 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1664 void qemu_system_reset(ShutdownCause reason)
1668 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1670 cpu_synchronize_all_states();
1672 if (mc && mc->reset) {
1675 qemu_devices_reset();
1677 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1678 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1680 cpu_synchronize_all_post_reset();
1683 void qemu_system_guest_panicked(GuestPanicInformation *info)
1685 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1688 current_cpu->crash_occurred = true;
1690 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1692 vm_stop(RUN_STATE_GUEST_PANICKED);
1694 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1696 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1700 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1701 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1702 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1703 info->u.hyper_v.arg1,
1704 info->u.hyper_v.arg2,
1705 info->u.hyper_v.arg3,
1706 info->u.hyper_v.arg4,
1707 info->u.hyper_v.arg5);
1708 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1709 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1710 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1712 S390CrashReason_str(info->u.s390.reason),
1713 info->u.s390.psw_mask,
1714 info->u.s390.psw_addr);
1716 qapi_free_GuestPanicInformation(info);
1720 void qemu_system_reset_request(ShutdownCause reason)
1722 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1723 shutdown_requested = reason;
1725 reset_requested = reason;
1728 qemu_notify_event();
1731 static void qemu_system_suspend(void)
1734 notifier_list_notify(&suspend_notifiers, NULL);
1735 runstate_set(RUN_STATE_SUSPENDED);
1736 qapi_event_send_suspend();
1739 void qemu_system_suspend_request(void)
1741 if (runstate_check(RUN_STATE_SUSPENDED)) {
1744 suspend_requested = 1;
1746 qemu_notify_event();
1749 void qemu_register_suspend_notifier(Notifier *notifier)
1751 notifier_list_add(&suspend_notifiers, notifier);
1754 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1756 trace_system_wakeup_request(reason);
1758 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1760 "Unable to wake up: guest is not in suspended state");
1763 if (!(wakeup_reason_mask & (1 << reason))) {
1766 runstate_set(RUN_STATE_RUNNING);
1767 wakeup_reason = reason;
1768 qemu_notify_event();
1771 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1774 wakeup_reason_mask |= (1 << reason);
1776 wakeup_reason_mask &= ~(1 << reason);
1780 void qemu_register_wakeup_notifier(Notifier *notifier)
1782 notifier_list_add(&wakeup_notifiers, notifier);
1785 void qemu_register_wakeup_support(void)
1787 wakeup_suspend_enabled = true;
1790 bool qemu_wakeup_suspend_enabled(void)
1792 return wakeup_suspend_enabled;
1795 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1797 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1798 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1803 void qemu_system_killed(int signal, pid_t pid)
1805 shutdown_signal = signal;
1809 /* Cannot call qemu_system_shutdown_request directly because
1810 * we are in a signal handler.
1812 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1813 qemu_notify_event();
1816 void qemu_system_shutdown_request(ShutdownCause reason)
1818 trace_qemu_system_shutdown_request(reason);
1819 replay_shutdown_request(reason);
1820 shutdown_requested = reason;
1821 qemu_notify_event();
1824 static void qemu_system_powerdown(void)
1826 qapi_event_send_powerdown();
1827 notifier_list_notify(&powerdown_notifiers, NULL);
1830 static void qemu_system_shutdown(ShutdownCause cause)
1832 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1833 notifier_list_notify(&shutdown_notifiers, &cause);
1836 void qemu_system_powerdown_request(void)
1838 trace_qemu_system_powerdown_request();
1839 powerdown_requested = 1;
1840 qemu_notify_event();
1843 void qemu_register_powerdown_notifier(Notifier *notifier)
1845 notifier_list_add(&powerdown_notifiers, notifier);
1848 void qemu_register_shutdown_notifier(Notifier *notifier)
1850 notifier_list_add(&shutdown_notifiers, notifier);
1853 void qemu_system_debug_request(void)
1855 debug_requested = 1;
1856 qemu_notify_event();
1859 static bool main_loop_should_exit(void)
1862 ShutdownCause request;
1864 if (preconfig_exit_requested) {
1865 if (runstate_check(RUN_STATE_PRECONFIG)) {
1866 runstate_set(RUN_STATE_PRELAUNCH);
1868 preconfig_exit_requested = false;
1871 if (qemu_debug_requested()) {
1872 vm_stop(RUN_STATE_DEBUG);
1874 if (qemu_suspend_requested()) {
1875 qemu_system_suspend();
1877 request = qemu_shutdown_requested();
1880 qemu_system_shutdown(request);
1882 vm_stop(RUN_STATE_SHUTDOWN);
1887 request = qemu_reset_requested();
1890 qemu_system_reset(request);
1892 if (!runstate_check(RUN_STATE_RUNNING) &&
1893 !runstate_check(RUN_STATE_INMIGRATE)) {
1894 runstate_set(RUN_STATE_PRELAUNCH);
1897 if (qemu_wakeup_requested()) {
1899 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1900 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1901 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1903 qapi_event_send_wakeup();
1905 if (qemu_powerdown_requested()) {
1906 qemu_system_powerdown();
1908 if (qemu_vmstop_requested(&r)) {
1914 static void main_loop(void)
1916 #ifdef CONFIG_PROFILER
1919 while (!main_loop_should_exit()) {
1920 #ifdef CONFIG_PROFILER
1921 ti = profile_getclock();
1923 main_loop_wait(false);
1924 #ifdef CONFIG_PROFILER
1925 dev_time += profile_getclock() - ti;
1930 static void version(void)
1932 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1933 QEMU_COPYRIGHT "\n");
1936 static void help(int exitcode)
1939 printf("usage: %s [options] [disk_image]\n\n"
1940 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1941 error_get_progname());
1943 #define QEMU_OPTIONS_GENERATE_HELP
1944 #include "qemu-options-wrapper.h"
1946 printf("\nDuring emulation, the following keys are useful:\n"
1947 "ctrl-alt-f toggle full screen\n"
1948 "ctrl-alt-n switch to virtual console 'n'\n"
1949 "ctrl-alt toggle mouse and keyboard grab\n"
1951 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1953 QEMU_HELP_BOTTOM "\n");
1958 #define HAS_ARG 0x0001
1960 typedef struct QEMUOption {
1967 static const QEMUOption qemu_options[] = {
1968 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1969 #define QEMU_OPTIONS_GENERATE_OPTIONS
1970 #include "qemu-options-wrapper.h"
1974 typedef struct VGAInterfaceInfo {
1975 const char *opt_name; /* option name */
1976 const char *name; /* human-readable name */
1977 /* Class names indicating that support is available.
1978 * If no class is specified, the interface is always available */
1979 const char *class_names[2];
1982 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1988 .name = "standard VGA",
1989 .class_names = { "VGA", "isa-vga" },
1992 .opt_name = "cirrus",
1993 .name = "Cirrus VGA",
1994 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1997 .opt_name = "vmware",
1998 .name = "VMWare SVGA",
1999 .class_names = { "vmware-svga" },
2002 .opt_name = "virtio",
2003 .name = "Virtio VGA",
2004 .class_names = { "virtio-vga" },
2009 .class_names = { "qxl-vga" },
2013 .name = "TCX framebuffer",
2014 .class_names = { "SUNW,tcx" },
2018 .name = "CG3 framebuffer",
2019 .class_names = { "cgthree" },
2022 .opt_name = "xenfb",
2026 static bool vga_interface_available(VGAInterfaceType t)
2028 VGAInterfaceInfo *ti = &vga_interfaces[t];
2030 assert(t < VGA_TYPE_MAX);
2031 return !ti->class_names[0] ||
2032 object_class_by_name(ti->class_names[0]) ||
2033 object_class_by_name(ti->class_names[1]);
2036 static void select_vgahw(const char *p)
2041 assert(vga_interface_type == VGA_NONE);
2042 for (t = 0; t < VGA_TYPE_MAX; t++) {
2043 VGAInterfaceInfo *ti = &vga_interfaces[t];
2044 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2045 if (!vga_interface_available(t)) {
2046 error_report("%s not available", ti->name);
2049 vga_interface_type = t;
2053 if (t == VGA_TYPE_MAX) {
2055 error_report("unknown vga type: %s", p);
2059 const char *nextopt;
2061 if (strstart(opts, ",retrace=", &nextopt)) {
2063 if (strstart(opts, "dumb", &nextopt))
2064 vga_retrace_method = VGA_RETRACE_DUMB;
2065 else if (strstart(opts, "precise", &nextopt))
2066 vga_retrace_method = VGA_RETRACE_PRECISE;
2067 else goto invalid_vga;
2068 } else goto invalid_vga;
2073 static void parse_display_qapi(const char *optarg)
2075 DisplayOptions *opts;
2078 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2080 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2081 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2083 qapi_free_DisplayOptions(opts);
2087 DisplayOptions *qmp_query_display_options(Error **errp)
2089 return QAPI_CLONE(DisplayOptions, &dpy);
2092 static void parse_display(const char *p)
2096 if (strstart(p, "sdl", &opts)) {
2098 * sdl DisplayType needs hand-crafted parser instead of
2099 * parse_display_qapi() due to some options not in
2100 * DisplayOptions, specifically:
2102 * Already deprecated.
2103 * - ctrl_grab + alt_grab
2104 * Not clear yet what happens to them long-term. Should
2105 * replaced by something better or deprecated and dropped.
2107 dpy.type = DISPLAY_TYPE_SDL;
2109 const char *nextopt;
2111 if (strstart(opts, ",alt_grab=", &nextopt)) {
2113 if (strstart(opts, "on", &nextopt)) {
2115 } else if (strstart(opts, "off", &nextopt)) {
2118 goto invalid_sdl_args;
2120 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2122 if (strstart(opts, "on", &nextopt)) {
2124 } else if (strstart(opts, "off", &nextopt)) {
2127 goto invalid_sdl_args;
2129 } else if (strstart(opts, ",window_close=", &nextopt)) {
2131 dpy.has_window_close = true;
2132 if (strstart(opts, "on", &nextopt)) {
2133 dpy.window_close = true;
2134 } else if (strstart(opts, "off", &nextopt)) {
2135 dpy.window_close = false;
2137 goto invalid_sdl_args;
2139 } else if (strstart(opts, ",gl=", &nextopt)) {
2142 if (strstart(opts, "on", &nextopt)) {
2143 dpy.gl = DISPLAYGL_MODE_ON;
2144 } else if (strstart(opts, "core", &nextopt)) {
2145 dpy.gl = DISPLAYGL_MODE_CORE;
2146 } else if (strstart(opts, "es", &nextopt)) {
2147 dpy.gl = DISPLAYGL_MODE_ES;
2148 } else if (strstart(opts, "off", &nextopt)) {
2149 dpy.gl = DISPLAYGL_MODE_OFF;
2151 goto invalid_sdl_args;
2155 error_report("invalid SDL option string");
2160 } else if (strstart(p, "vnc", &opts)) {
2162 * vnc isn't a (local) DisplayType but a protocol for remote
2166 vnc_parse(opts + 1, &error_fatal);
2168 error_report("VNC requires a display argument vnc=<display>");
2172 parse_display_qapi(p);
2176 char *qemu_find_file(int type, const char *name)
2182 /* Try the name as a straight path first */
2183 if (access(name, R_OK) == 0) {
2184 trace_load_file(name, name);
2185 return g_strdup(name);
2189 case QEMU_FILE_TYPE_BIOS:
2192 case QEMU_FILE_TYPE_KEYMAP:
2193 subdir = "keymaps/";
2199 for (i = 0; i < data_dir_idx; i++) {
2200 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2201 if (access(buf, R_OK) == 0) {
2202 trace_load_file(name, buf);
2210 static void qemu_add_data_dir(const char *path)
2217 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2220 for (i = 0; i < data_dir_idx; i++) {
2221 if (strcmp(data_dir[i], path) == 0) {
2222 return; /* duplicate */
2225 data_dir[data_dir_idx++] = g_strdup(path);
2228 static inline bool nonempty_str(const char *str)
2233 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2237 const char *name, *file, *str;
2238 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2240 if (fw_cfg == NULL) {
2241 error_setg(errp, "fw_cfg device not available");
2244 name = qemu_opt_get(opts, "name");
2245 file = qemu_opt_get(opts, "file");
2246 str = qemu_opt_get(opts, "string");
2248 /* we need name and either a file or the content string */
2249 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2250 error_setg(errp, "invalid argument(s)");
2253 if (nonempty_str(file) && nonempty_str(str)) {
2254 error_setg(errp, "file and string are mutually exclusive");
2257 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2258 error_setg(errp, "name too long (max. %d char)",
2259 FW_CFG_MAX_FILE_PATH - 1);
2262 if (strncmp(name, "opt/", 4) != 0) {
2263 warn_report("externally provided fw_cfg item names "
2264 "should be prefixed with \"opt/\"");
2266 if (nonempty_str(str)) {
2267 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2268 buf = g_memdup(str, size);
2271 if (!g_file_get_contents(file, &buf, &size, &err)) {
2272 error_setg(errp, "can't load %s: %s", file, err->message);
2277 /* For legacy, keep user files in a specific global order. */
2278 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2279 fw_cfg_add_file(fw_cfg, name, buf, size);
2280 fw_cfg_reset_order_override(fw_cfg);
2284 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2286 return qdev_device_help(opts);
2289 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2293 dev = qdev_device_add(opts, errp);
2297 object_unref(OBJECT(dev));
2301 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2303 Error *local_err = NULL;
2305 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2307 error_propagate(errp, local_err);
2315 #ifdef CONFIG_VIRTFS
2316 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2318 return qemu_fsdev_add(opts, errp);
2322 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2325 const char *chardev;
2329 mode = qemu_opt_get(opts, "mode");
2333 if (strcmp(mode, "readline") == 0) {
2334 flags = MONITOR_USE_READLINE;
2335 } else if (strcmp(mode, "control") == 0) {
2336 flags = MONITOR_USE_CONTROL;
2338 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2342 if (qemu_opt_get_bool(opts, "pretty", 0))
2343 flags |= MONITOR_USE_PRETTY;
2345 chardev = qemu_opt_get(opts, "chardev");
2347 error_report("chardev is required");
2350 chr = qemu_chr_find(chardev);
2352 error_setg(errp, "chardev \"%s\" not found", chardev);
2356 monitor_init(chr, flags);
2360 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2362 static int monitor_device_index = 0;
2367 if (strstart(optarg, "chardev:", &p)) {
2368 snprintf(label, sizeof(label), "%s", p);
2370 snprintf(label, sizeof(label), "compat_monitor%d",
2371 monitor_device_index);
2372 opts = qemu_chr_parse_compat(label, optarg, true);
2374 error_report("parse error: %s", optarg);
2379 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2380 qemu_opt_set(opts, "mode", mode, &error_abort);
2381 qemu_opt_set(opts, "chardev", label, &error_abort);
2382 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2383 monitor_device_index++;
2386 struct device_config {
2388 DEV_USB, /* -usbdevice */
2390 DEV_SERIAL, /* -serial */
2391 DEV_PARALLEL, /* -parallel */
2392 DEV_DEBUGCON, /* -debugcon */
2393 DEV_GDB, /* -gdb, -s */
2394 DEV_SCLP, /* s390 sclp */
2396 const char *cmdline;
2398 QTAILQ_ENTRY(device_config) next;
2401 static QTAILQ_HEAD(, device_config) device_configs =
2402 QTAILQ_HEAD_INITIALIZER(device_configs);
2404 static void add_device_config(int type, const char *cmdline)
2406 struct device_config *conf;
2408 conf = g_malloc0(sizeof(*conf));
2410 conf->cmdline = cmdline;
2411 loc_save(&conf->loc);
2412 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2415 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2417 struct device_config *conf;
2420 QTAILQ_FOREACH(conf, &device_configs, next) {
2421 if (conf->type != type)
2423 loc_push_restore(&conf->loc);
2424 rc = func(conf->cmdline);
2425 loc_pop(&conf->loc);
2433 static int serial_parse(const char *devname)
2435 int index = num_serial_hds;
2438 if (strcmp(devname, "none") == 0)
2440 snprintf(label, sizeof(label), "serial%d", index);
2441 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2443 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2444 if (!serial_hds[index]) {
2445 error_report("could not connect serial device"
2446 " to character backend '%s'", devname);
2453 Chardev *serial_hd(int i)
2456 if (i < num_serial_hds) {
2457 return serial_hds[i];
2462 int serial_max_hds(void)
2464 return num_serial_hds;
2467 static int parallel_parse(const char *devname)
2469 static int index = 0;
2472 if (strcmp(devname, "none") == 0)
2474 if (index == MAX_PARALLEL_PORTS) {
2475 error_report("too many parallel ports");
2478 snprintf(label, sizeof(label), "parallel%d", index);
2479 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2480 if (!parallel_hds[index]) {
2481 error_report("could not connect parallel device"
2482 " to character backend '%s'", devname);
2489 static int debugcon_parse(const char *devname)
2493 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2494 error_report("invalid character backend '%s'", devname);
2497 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2499 error_report("already have a debugcon device");
2502 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2503 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2507 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2509 const MachineClass *mc1 = a, *mc2 = b;
2512 if (mc1->family == NULL) {
2513 if (mc2->family == NULL) {
2514 /* Compare standalone machine types against each other; they sort
2515 * in increasing order.
2517 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2518 object_class_get_name(OBJECT_CLASS(mc2)));
2521 /* Standalone machine types sort after families. */
2525 if (mc2->family == NULL) {
2526 /* Families sort before standalone machine types. */
2530 /* Families sort between each other alphabetically increasingly. */
2531 res = strcmp(mc1->family, mc2->family);
2536 /* Within the same family, machine types sort in decreasing order. */
2537 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2538 object_class_get_name(OBJECT_CLASS(mc1)));
2541 static MachineClass *machine_parse(const char *name)
2543 MachineClass *mc = NULL;
2544 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2547 mc = find_machine(name);
2550 g_slist_free(machines);
2553 if (name && !is_help_option(name)) {
2554 error_report("unsupported machine type");
2555 error_printf("Use -machine help to list supported machines\n");
2557 printf("Supported machines are:\n");
2558 machines = g_slist_sort(machines, machine_class_cmp);
2559 for (el = machines; el; el = el->next) {
2560 MachineClass *mc = el->data;
2562 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2564 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2565 mc->is_default ? " (default)" : "",
2566 mc->deprecation_reason ? " (deprecated)" : "");
2570 g_slist_free(machines);
2571 exit(!name || !is_help_option(name));
2574 void qemu_add_exit_notifier(Notifier *notify)
2576 notifier_list_add(&exit_notifiers, notify);
2579 void qemu_remove_exit_notifier(Notifier *notify)
2581 notifier_remove(notify);
2584 static void qemu_run_exit_notifiers(void)
2586 notifier_list_notify(&exit_notifiers, NULL);
2589 static const char *pid_file;
2590 static Notifier qemu_unlink_pidfile_notifier;
2592 static void qemu_unlink_pidfile(Notifier *n, void *data)
2599 bool machine_init_done;
2601 void qemu_add_machine_init_done_notifier(Notifier *notify)
2603 notifier_list_add(&machine_init_done_notifiers, notify);
2604 if (machine_init_done) {
2605 notify->notify(notify, NULL);
2609 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2611 notifier_remove(notify);
2614 static void qemu_run_machine_init_done_notifiers(void)
2616 machine_init_done = true;
2617 notifier_list_notify(&machine_init_done_notifiers, NULL);
2620 static const QEMUOption *lookup_opt(int argc, char **argv,
2621 const char **poptarg, int *poptind)
2623 const QEMUOption *popt;
2624 int optind = *poptind;
2625 char *r = argv[optind];
2628 loc_set_cmdline(argv, optind, 1);
2630 /* Treat --foo the same as -foo. */
2633 popt = qemu_options;
2636 error_report("invalid option");
2639 if (!strcmp(popt->name, r + 1))
2643 if (popt->flags & HAS_ARG) {
2644 if (optind >= argc) {
2645 error_report("requires an argument");
2648 optarg = argv[optind++];
2649 loc_set_cmdline(argv, optind - 2, 2);
2660 static MachineClass *select_machine(void)
2662 MachineClass *machine_class = find_default_machine();
2667 loc_push_none(&loc);
2669 opts = qemu_get_machine_opts();
2670 qemu_opts_loc_restore(opts);
2672 optarg = qemu_opt_get(opts, "type");
2674 machine_class = machine_parse(optarg);
2677 if (!machine_class) {
2678 error_report("No machine specified, and there is no default");
2679 error_printf("Use -machine help to list supported machines\n");
2684 return machine_class;
2687 static int machine_set_property(void *opaque,
2688 const char *name, const char *value,
2691 Object *obj = OBJECT(opaque);
2692 Error *local_err = NULL;
2695 if (strcmp(name, "type") == 0) {
2699 qom_name = g_strdup(name);
2700 for (p = qom_name; *p; p++) {
2706 object_property_parse(obj, value, qom_name, &local_err);
2710 error_propagate(errp, local_err);
2719 * Initial object creation happens before all other
2720 * QEMU data types are created. The majority of objects
2721 * can be created at this point. The rng-egd object
2722 * cannot be created here, as it depends on the chardev
2725 static bool object_create_initial(const char *type, QemuOpts *opts)
2729 if (is_help_option(type)) {
2732 printf("List of user creatable objects:\n");
2733 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2734 for (l = list; l != NULL; l = l->next) {
2735 ObjectClass *oc = OBJECT_CLASS(l->data);
2736 printf(" %s\n", object_class_get_name(oc));
2742 klass = object_class_by_name(type);
2743 if (klass && qemu_opt_has_help_opt(opts)) {
2744 ObjectPropertyIterator iter;
2745 ObjectProperty *prop;
2746 GPtrArray *array = g_ptr_array_new();
2749 object_class_property_iter_init(&iter, klass);
2750 while ((prop = object_property_iter_next(&iter))) {
2757 str = g_string_new(NULL);
2758 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2759 if (prop->description) {
2760 if (str->len < 24) {
2761 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2763 g_string_append_printf(str, " - %s", prop->description);
2765 g_ptr_array_add(array, g_string_free(str, false));
2767 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2768 if (array->len > 0) {
2769 printf("%s options:\n", type);
2771 printf("There are no options for %s.\n", type);
2773 for (i = 0; i < array->len; i++) {
2774 printf("%s\n", (char *)array->pdata[i]);
2776 g_ptr_array_set_free_func(array, g_free);
2777 g_ptr_array_free(array, true);
2781 if (g_str_equal(type, "rng-egd") ||
2782 g_str_has_prefix(type, "pr-manager-")) {
2786 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2787 if (g_str_equal(type, "cryptodev-vhost-user")) {
2793 * return false for concrete netfilters since
2794 * they depend on netdevs already existing
2796 if (g_str_equal(type, "filter-buffer") ||
2797 g_str_equal(type, "filter-dump") ||
2798 g_str_equal(type, "filter-mirror") ||
2799 g_str_equal(type, "filter-redirector") ||
2800 g_str_equal(type, "colo-compare") ||
2801 g_str_equal(type, "filter-rewriter") ||
2802 g_str_equal(type, "filter-replay")) {
2806 /* Memory allocation by backends needs to be done
2807 * after configure_accelerator() (due to the tcg_enabled()
2808 * checks at memory_region_init_*()).
2810 * Also, allocation of large amounts of memory may delay
2811 * chardev initialization for too long, and trigger timeouts
2812 * on software that waits for a monitor socket to be created
2815 if (g_str_has_prefix(type, "memory-backend-")) {
2824 * The remainder of object creation happens after the
2825 * creation of chardev, fsdev, net clients and device data types.
2827 static bool object_create_delayed(const char *type, QemuOpts *opts)
2829 return !object_create_initial(type, opts);
2833 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2837 const char *mem_str;
2838 const ram_addr_t default_ram_size = mc->default_ram_size;
2839 QemuOpts *opts = qemu_find_opts_singleton("memory");
2842 loc_push_none(&loc);
2843 qemu_opts_loc_restore(opts);
2846 mem_str = qemu_opt_get(opts, "size");
2849 error_report("missing 'size' option value");
2853 sz = qemu_opt_get_size(opts, "size", ram_size);
2855 /* Fix up legacy suffix-less format */
2856 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2857 uint64_t overflow_check = sz;
2860 if (sz / MiB != overflow_check) {
2861 error_report("too large 'size' option value");
2867 /* backward compatibility behaviour for case "-m 0" */
2869 sz = default_ram_size;
2872 sz = QEMU_ALIGN_UP(sz, 8192);
2874 if (ram_size != sz) {
2875 error_report("ram size too large");
2879 /* store value for the future use */
2880 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2881 *maxram_size = ram_size;
2883 if (qemu_opt_get(opts, "maxmem")) {
2886 sz = qemu_opt_get_size(opts, "maxmem", 0);
2887 slots = qemu_opt_get_number(opts, "slots", 0);
2888 if (sz < ram_size) {
2889 error_report("invalid value of -m option maxmem: "
2890 "maximum memory size (0x%" PRIx64 ") must be at least "
2891 "the initial memory size (0x" RAM_ADDR_FMT ")",
2894 } else if (slots && sz == ram_size) {
2895 error_report("invalid value of -m option maxmem: "
2896 "memory slots were specified but maximum memory size "
2897 "(0x%" PRIx64 ") is equal to the initial memory size "
2898 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2904 } else if (qemu_opt_get(opts, "slots")) {
2905 error_report("invalid -m option value: missing 'maxmem' option");
2912 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2916 g = g_malloc0(sizeof(*g));
2917 g->driver = qemu_opt_get(opts, "driver");
2918 g->property = qemu_opt_get(opts, "property");
2919 g->value = qemu_opt_get(opts, "value");
2920 qdev_prop_register_global(g);
2924 static int qemu_read_default_config_file(void)
2928 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2929 if (ret < 0 && ret != -ENOENT) {
2936 static void user_register_global_props(void)
2938 qemu_opts_foreach(qemu_find_opts("global"),
2939 global_init_func, NULL, NULL);
2943 * Note: we should see that these properties are actually having a
2944 * priority: accel < machine < user. This means e.g. when user
2945 * specifies something in "-global", it'll always be used with highest
2946 * priority than either machine/accelerator compat properties.
2948 static void register_global_properties(MachineState *ms)
2950 user_register_global_props();
2953 int main(int argc, char **argv, char **envp)
2956 int snapshot, linux_boot;
2957 const char *initrd_filename;
2958 const char *kernel_filename, *kernel_cmdline;
2959 const char *boot_order = NULL;
2960 const char *boot_once = NULL;
2962 QemuOpts *opts, *machine_opts;
2963 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2964 QemuOptsList *olist;
2967 const char *loadvm = NULL;
2968 MachineClass *machine_class;
2969 const char *cpu_model;
2970 const char *vga_model = NULL;
2971 const char *qtest_chrdev = NULL;
2972 const char *qtest_log = NULL;
2973 const char *incoming = NULL;
2974 bool userconfig = true;
2975 bool nographic = false;
2976 int display_remote = 0;
2977 const char *log_mask = NULL;
2978 const char *log_file = NULL;
2979 char *trace_file = NULL;
2980 ram_addr_t maxram_size;
2981 uint64_t ram_slots = 0;
2982 FILE *vmstate_dump_file = NULL;
2983 Error *main_loop_err = NULL;
2985 bool list_data_dirs = false;
2987 typedef struct BlockdevOptions_queue {
2988 BlockdevOptions *bdo;
2990 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2991 } BlockdevOptions_queue;
2992 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2993 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2995 module_call_init(MODULE_INIT_TRACE);
2997 qemu_init_cpu_list();
2998 qemu_init_cpu_loop();
3000 qemu_mutex_lock_iothread();
3002 atexit(qemu_run_exit_notifiers);
3003 error_set_progname(argv[0]);
3004 qemu_init_exec_dir(argv[0]);
3006 module_call_init(MODULE_INIT_QOM);
3008 qemu_add_opts(&qemu_drive_opts);
3009 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3010 qemu_add_drive_opts(&qemu_common_drive_opts);
3011 qemu_add_drive_opts(&qemu_drive_opts);
3012 qemu_add_drive_opts(&bdrv_runtime_opts);
3013 qemu_add_opts(&qemu_chardev_opts);
3014 qemu_add_opts(&qemu_device_opts);
3015 qemu_add_opts(&qemu_netdev_opts);
3016 qemu_add_opts(&qemu_nic_opts);
3017 qemu_add_opts(&qemu_net_opts);
3018 qemu_add_opts(&qemu_rtc_opts);
3019 qemu_add_opts(&qemu_global_opts);
3020 qemu_add_opts(&qemu_mon_opts);
3021 qemu_add_opts(&qemu_trace_opts);
3022 qemu_add_opts(&qemu_option_rom_opts);
3023 qemu_add_opts(&qemu_machine_opts);
3024 qemu_add_opts(&qemu_accel_opts);
3025 qemu_add_opts(&qemu_mem_opts);
3026 qemu_add_opts(&qemu_smp_opts);
3027 qemu_add_opts(&qemu_boot_opts);
3028 qemu_add_opts(&qemu_add_fd_opts);
3029 qemu_add_opts(&qemu_object_opts);
3030 qemu_add_opts(&qemu_tpmdev_opts);
3031 qemu_add_opts(&qemu_realtime_opts);
3032 qemu_add_opts(&qemu_overcommit_opts);
3033 qemu_add_opts(&qemu_msg_opts);
3034 qemu_add_opts(&qemu_name_opts);
3035 qemu_add_opts(&qemu_numa_opts);
3036 qemu_add_opts(&qemu_icount_opts);
3037 qemu_add_opts(&qemu_semihosting_config_opts);
3038 qemu_add_opts(&qemu_fw_cfg_opts);
3039 module_call_init(MODULE_INIT_OPTS);
3042 postcopy_infrastructure_init();
3043 monitor_init_globals();
3045 if (qcrypto_init(&err) < 0) {
3046 error_reportf_err(err, "cannot initialize crypto: ");
3050 QLIST_INIT (&vm_change_state_head);
3051 os_setup_early_signal_handling();
3058 bdrv_init_with_whitelist();
3062 /* first pass of option parsing */
3064 while (optind < argc) {
3065 if (argv[optind][0] != '-') {
3069 const QEMUOption *popt;
3071 popt = lookup_opt(argc, argv, &optarg, &optind);
3072 switch (popt->index) {
3073 case QEMU_OPTION_nouserconfig:
3081 if (qemu_read_default_config_file() < 0) {
3086 /* second pass of option parsing */
3091 if (argv[optind][0] != '-') {
3092 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3094 const QEMUOption *popt;
3096 popt = lookup_opt(argc, argv, &optarg, &optind);
3097 if (!(popt->arch_mask & arch_type)) {
3098 error_report("Option not supported for this target");
3101 switch(popt->index) {
3102 case QEMU_OPTION_cpu:
3103 /* hw initialization will check this */
3106 case QEMU_OPTION_hda:
3107 case QEMU_OPTION_hdb:
3108 case QEMU_OPTION_hdc:
3109 case QEMU_OPTION_hdd:
3110 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3113 case QEMU_OPTION_blockdev:
3116 BlockdevOptions_queue *bdo;
3118 v = qobject_input_visitor_new_str(optarg, "driver",
3121 bdo = g_new(BlockdevOptions_queue, 1);
3122 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3125 loc_save(&bdo->loc);
3126 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3129 case QEMU_OPTION_drive:
3130 if (drive_def(optarg) == NULL) {
3134 case QEMU_OPTION_set:
3135 if (qemu_set_option(optarg) != 0)
3138 case QEMU_OPTION_global:
3139 if (qemu_global_option(optarg) != 0)
3142 case QEMU_OPTION_mtdblock:
3143 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3145 case QEMU_OPTION_sd:
3146 drive_add(IF_SD, -1, optarg, SD_OPTS);
3148 case QEMU_OPTION_pflash:
3149 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3151 case QEMU_OPTION_snapshot:
3154 case QEMU_OPTION_numa:
3155 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3161 case QEMU_OPTION_display:
3162 parse_display(optarg);
3164 case QEMU_OPTION_nographic:
3165 olist = qemu_find_opts("machine");
3166 qemu_opts_parse_noisily(olist, "graphics=off", false);
3168 dpy.type = DISPLAY_TYPE_NONE;
3170 case QEMU_OPTION_curses:
3171 #ifdef CONFIG_CURSES
3172 dpy.type = DISPLAY_TYPE_CURSES;
3174 error_report("curses support is disabled");
3178 case QEMU_OPTION_portrait:
3179 graphic_rotate = 90;
3181 case QEMU_OPTION_rotate:
3182 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3183 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3184 graphic_rotate != 180 && graphic_rotate != 270) {
3185 error_report("only 90, 180, 270 deg rotation is available");
3189 case QEMU_OPTION_kernel:
3190 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3193 case QEMU_OPTION_initrd:
3194 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3197 case QEMU_OPTION_append:
3198 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3201 case QEMU_OPTION_dtb:
3202 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3205 case QEMU_OPTION_cdrom:
3206 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3208 case QEMU_OPTION_boot:
3209 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3215 case QEMU_OPTION_fda:
3216 case QEMU_OPTION_fdb:
3217 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3220 case QEMU_OPTION_no_fd_bootchk:
3223 case QEMU_OPTION_netdev:
3225 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3229 case QEMU_OPTION_nic:
3231 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3235 case QEMU_OPTION_net:
3237 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3241 #ifdef CONFIG_LIBISCSI
3242 case QEMU_OPTION_iscsi:
3243 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3250 case QEMU_OPTION_bt:
3251 warn_report("The bluetooth subsystem is deprecated and will "
3252 "be removed soon. If the bluetooth subsystem is "
3253 "still useful for you, please send a mail to "
3255 add_device_config(DEV_BT, optarg);
3257 case QEMU_OPTION_audio_help:
3261 case QEMU_OPTION_soundhw:
3262 select_soundhw (optarg);
3267 case QEMU_OPTION_version:
3272 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3279 case QEMU_OPTION_tpmdev:
3280 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3285 case QEMU_OPTION_mempath:
3288 case QEMU_OPTION_mem_prealloc:
3297 case QEMU_OPTION_DFILTER:
3298 qemu_set_dfilter_ranges(optarg, &error_fatal);
3301 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3303 case QEMU_OPTION_gdb:
3304 add_device_config(DEV_GDB, optarg);
3307 if (is_help_option(optarg)) {
3308 list_data_dirs = true;
3310 qemu_add_data_dir(optarg);
3313 case QEMU_OPTION_bios:
3314 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3317 case QEMU_OPTION_singlestep:
3324 keyboard_layout = optarg;
3326 case QEMU_OPTION_vga:
3335 w = strtol(p, (char **)&p, 10);
3338 error_report("invalid resolution or depth");
3344 h = strtol(p, (char **)&p, 10);
3349 depth = strtol(p, (char **)&p, 10);
3350 if (depth != 8 && depth != 15 && depth != 16 &&
3351 depth != 24 && depth != 32)
3353 } else if (*p == '\0') {
3354 depth = graphic_depth;
3361 graphic_depth = depth;
3364 case QEMU_OPTION_echr:
3367 term_escape_char = strtol(optarg, &r, 0);
3369 printf("Bad argument to echr\n");
3372 case QEMU_OPTION_monitor:
3373 default_monitor = 0;
3374 if (strncmp(optarg, "none", 4)) {
3375 monitor_parse(optarg, "readline", false);
3378 case QEMU_OPTION_qmp:
3379 monitor_parse(optarg, "control", false);
3380 default_monitor = 0;
3382 case QEMU_OPTION_qmp_pretty:
3383 monitor_parse(optarg, "control", true);
3384 default_monitor = 0;
3386 case QEMU_OPTION_mon:
3387 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3392 default_monitor = 0;
3394 case QEMU_OPTION_chardev:
3395 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3401 case QEMU_OPTION_fsdev:
3402 olist = qemu_find_opts("fsdev");
3404 error_report("fsdev support is disabled");
3407 opts = qemu_opts_parse_noisily(olist, optarg, true);
3412 case QEMU_OPTION_virtfs: {
3415 const char *writeout, *sock_fd, *socket, *path, *security_model;
3417 olist = qemu_find_opts("virtfs");
3419 error_report("virtfs support is disabled");
3422 opts = qemu_opts_parse_noisily(olist, optarg, true);
3427 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3428 qemu_opt_get(opts, "mount_tag") == NULL) {
3429 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3432 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3433 qemu_opts_id(opts) ?:
3434 qemu_opt_get(opts, "mount_tag"),
3437 error_report("duplicate or invalid fsdev id: %s",
3438 qemu_opt_get(opts, "mount_tag"));
3442 writeout = qemu_opt_get(opts, "writeout");
3444 #ifdef CONFIG_SYNC_FILE_RANGE
3445 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3447 error_report("writeout=immediate not supported "
3448 "on this platform");
3452 qemu_opt_set(fsdev, "fsdriver",
3453 qemu_opt_get(opts, "fsdriver"), &error_abort);
3454 path = qemu_opt_get(opts, "path");
3456 qemu_opt_set(fsdev, "path", path, &error_abort);
3458 security_model = qemu_opt_get(opts, "security_model");
3459 if (security_model) {
3460 qemu_opt_set(fsdev, "security_model", security_model,
3463 socket = qemu_opt_get(opts, "socket");
3465 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3467 sock_fd = qemu_opt_get(opts, "sock_fd");
3469 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3472 qemu_opt_set_bool(fsdev, "readonly",
3473 qemu_opt_get_bool(opts, "readonly", 0),
3475 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3477 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3478 qemu_opt_set(device, "fsdev",
3479 qemu_opts_id(fsdev), &error_abort);
3480 qemu_opt_set(device, "mount_tag",
3481 qemu_opt_get(opts, "mount_tag"), &error_abort);
3484 case QEMU_OPTION_virtfs_synth: {
3488 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3491 error_report("duplicate option: %s", "virtfs_synth");
3494 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3496 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3498 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3499 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3500 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3503 case QEMU_OPTION_serial:
3504 add_device_config(DEV_SERIAL, optarg);
3506 if (strncmp(optarg, "mon:", 4) == 0) {
3507 default_monitor = 0;
3510 case QEMU_OPTION_watchdog:
3512 error_report("only one watchdog option may be given");
3517 case QEMU_OPTION_watchdog_action:
3518 if (select_watchdog_action(optarg) == -1) {
3519 error_report("unknown -watchdog-action parameter");
3523 case QEMU_OPTION_parallel:
3524 add_device_config(DEV_PARALLEL, optarg);
3525 default_parallel = 0;
3526 if (strncmp(optarg, "mon:", 4) == 0) {
3527 default_monitor = 0;
3530 case QEMU_OPTION_debugcon:
3531 add_device_config(DEV_DEBUGCON, optarg);
3533 case QEMU_OPTION_loadvm:
3536 case QEMU_OPTION_full_screen:
3537 dpy.has_full_screen = true;
3538 dpy.full_screen = true;
3540 case QEMU_OPTION_alt_grab:
3543 case QEMU_OPTION_ctrl_grab:
3546 case QEMU_OPTION_no_quit:
3547 dpy.has_window_close = true;
3548 dpy.window_close = false;
3550 case QEMU_OPTION_sdl:
3552 dpy.type = DISPLAY_TYPE_SDL;
3555 error_report("SDL support is disabled");
3558 case QEMU_OPTION_pidfile:
3561 case QEMU_OPTION_win2k_hack:
3562 win2k_install_hack = 1;
3564 case QEMU_OPTION_acpitable:
3565 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3570 acpi_table_add(opts, &error_fatal);
3572 case QEMU_OPTION_smbios:
3573 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3578 smbios_entry_add(opts, &error_fatal);
3580 case QEMU_OPTION_fwcfg:
3581 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3587 case QEMU_OPTION_preconfig:
3588 preconfig_exit_requested = false;
3590 case QEMU_OPTION_enable_kvm:
3591 olist = qemu_find_opts("machine");
3592 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3595 case QEMU_OPTION_machine:
3596 olist = qemu_find_opts("machine");
3597 opts = qemu_opts_parse_noisily(olist, optarg, true);
3602 case QEMU_OPTION_no_kvm:
3603 olist = qemu_find_opts("machine");
3604 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3606 case QEMU_OPTION_accel:
3607 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3609 optarg = qemu_opt_get(accel_opts, "accel");
3610 if (!optarg || is_help_option(optarg)) {
3611 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3614 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3615 false, &error_abort);
3616 qemu_opt_set(opts, "accel", optarg, &error_abort);
3618 case QEMU_OPTION_usb:
3619 olist = qemu_find_opts("machine");
3620 qemu_opts_parse_noisily(olist, "usb=on", false);
3622 case QEMU_OPTION_usbdevice:
3623 error_report("'-usbdevice' is deprecated, please use "
3624 "'-device usb-...' instead");
3625 olist = qemu_find_opts("machine");
3626 qemu_opts_parse_noisily(olist, "usb=on", false);
3627 add_device_config(DEV_USB, optarg);
3629 case QEMU_OPTION_device:
3630 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3635 case QEMU_OPTION_smp:
3636 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3641 case QEMU_OPTION_vnc:
3642 vnc_parse(optarg, &error_fatal);
3644 case QEMU_OPTION_no_acpi:
3647 case QEMU_OPTION_no_hpet:
3650 case QEMU_OPTION_no_reboot:
3653 case QEMU_OPTION_no_shutdown:
3656 case QEMU_OPTION_show_cursor:
3659 case QEMU_OPTION_uuid:
3660 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3661 error_report("failed to parse UUID string: wrong format");
3664 qemu_uuid_set = true;
3666 case QEMU_OPTION_option_rom:
3667 if (nb_option_roms >= MAX_OPTION_ROMS) {
3668 error_report("too many option ROMs");
3671 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3676 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3677 option_rom[nb_option_roms].bootindex =
3678 qemu_opt_get_number(opts, "bootindex", -1);
3679 if (!option_rom[nb_option_roms].name) {
3680 error_report("Option ROM file is not specified");
3685 case QEMU_OPTION_semihosting:
3686 semihosting.enabled = true;
3687 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3689 case QEMU_OPTION_semihosting_config:
3690 semihosting.enabled = true;
3691 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3694 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3696 const char *target = qemu_opt_get(opts, "target");
3697 if (target != NULL) {
3698 if (strcmp("native", target) == 0) {
3699 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3700 } else if (strcmp("gdb", target) == 0) {
3701 semihosting.target = SEMIHOSTING_TARGET_GDB;
3702 } else if (strcmp("auto", target) == 0) {
3703 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3705 error_report("unsupported semihosting-config %s",
3710 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3712 /* Set semihosting argument count and vector */
3713 qemu_opt_foreach(opts, add_semihosting_arg,
3714 &semihosting, NULL);
3716 error_report("unsupported semihosting-config %s", optarg);
3720 case QEMU_OPTION_name:
3721 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3727 case QEMU_OPTION_prom_env:
3728 if (nb_prom_envs >= MAX_PROM_ENVS) {
3729 error_report("too many prom variables");
3732 prom_envs[nb_prom_envs] = optarg;
3735 case QEMU_OPTION_old_param:
3738 case QEMU_OPTION_clock:
3739 /* Clock options no longer exist. Keep this option for
3740 * backward compatibility.
3742 warn_report("This option is ignored and will be removed soon");
3744 case QEMU_OPTION_rtc:
3745 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3751 case QEMU_OPTION_tb_size:
3753 error_report("TCG is disabled");
3756 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3757 error_report("Invalid argument to -tb-size");
3761 case QEMU_OPTION_icount:
3762 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3768 case QEMU_OPTION_incoming:
3770 runstate_set(RUN_STATE_INMIGRATE);
3774 case QEMU_OPTION_only_migratable:
3776 * TODO: we can remove this option one day, and we
3779 * "-global migration.only-migratable=true"
3781 qemu_global_option("migration.only-migratable=true");
3783 case QEMU_OPTION_nodefaults:
3786 case QEMU_OPTION_xen_domid:
3787 if (!(xen_available())) {
3788 error_report("Option not supported for this target");
3791 xen_domid = atoi(optarg);
3793 case QEMU_OPTION_xen_attach:
3794 if (!(xen_available())) {
3795 error_report("Option not supported for this target");
3798 xen_mode = XEN_ATTACH;
3800 case QEMU_OPTION_xen_domid_restrict:
3801 if (!(xen_available())) {
3802 error_report("Option not supported for this target");
3805 xen_domid_restrict = true;
3807 case QEMU_OPTION_trace:
3809 trace_file = trace_opt_parse(optarg);
3811 case QEMU_OPTION_readconfig:
3813 int ret = qemu_read_config_file(optarg);
3815 error_report("read config %s: %s", optarg,
3821 case QEMU_OPTION_spice:
3822 olist = qemu_find_opts("spice");
3824 error_report("spice support is disabled");
3827 opts = qemu_opts_parse_noisily(olist, optarg, false);
3833 case QEMU_OPTION_writeconfig:
3836 if (strcmp(optarg, "-") == 0) {
3839 fp = fopen(optarg, "w");
3841 error_report("open %s: %s", optarg,
3846 qemu_config_write(fp);
3852 case QEMU_OPTION_qtest:
3853 qtest_chrdev = optarg;
3855 case QEMU_OPTION_qtest_log:
3858 case QEMU_OPTION_sandbox:
3859 #ifdef CONFIG_SECCOMP
3860 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3866 error_report("-sandbox support is not enabled "
3867 "in this QEMU binary");
3871 case QEMU_OPTION_add_fd:
3873 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3879 error_report("File descriptor passing is disabled on this "
3884 case QEMU_OPTION_object:
3885 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3891 case QEMU_OPTION_realtime:
3892 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3897 /* Don't override the -overcommit option if set */
3898 enable_mlock = enable_mlock ||
3899 qemu_opt_get_bool(opts, "mlock", true);
3901 case QEMU_OPTION_overcommit:
3902 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3907 /* Don't override the -realtime option if set */
3908 enable_mlock = enable_mlock ||
3909 qemu_opt_get_bool(opts, "mem-lock", false);
3910 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3912 case QEMU_OPTION_msg:
3913 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3918 configure_msg(opts);
3920 case QEMU_OPTION_dump_vmstate:
3921 if (vmstate_dump_file) {
3922 error_report("only one '-dump-vmstate' "
3923 "option may be given");
3926 vmstate_dump_file = fopen(optarg, "w");
3927 if (vmstate_dump_file == NULL) {
3928 error_report("open %s: %s", optarg, strerror(errno));
3932 case QEMU_OPTION_enable_sync_profile:
3935 case QEMU_OPTION_nouserconfig:
3936 /* Nothing to be parsed here. Especially, do not error out below. */
3939 if (os_parse_cmd_args(popt->index, optarg)) {
3940 error_report("Option not supported in this build");
3947 * Clear error location left behind by the loop.
3948 * Best done right after the loop. Do not insert code here!
3952 replay_configure(icount_opts);
3954 if (incoming && !preconfig_exit_requested) {
3955 error_report("'preconfig' and 'incoming' options are "
3956 "mutually exclusive");
3960 configure_rtc(qemu_find_opts_singleton("rtc"));
3962 machine_class = select_machine();
3964 set_memory_options(&ram_slots, &maxram_size, machine_class);
3967 rcu_disable_atfork();
3969 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3970 error_reportf_err(err, "cannot create PID file: ");
3974 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3975 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3977 if (qemu_init_main_loop(&main_loop_err)) {
3978 error_report_err(main_loop_err);
3982 #ifdef CONFIG_SECCOMP
3983 olist = qemu_find_opts_err("sandbox", NULL);
3985 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3989 qemu_opts_foreach(qemu_find_opts("name"),
3990 parse_name, NULL, &error_fatal);
3993 qemu_opts_foreach(qemu_find_opts("add-fd"),
3994 parse_add_fd, NULL, &error_fatal);
3996 qemu_opts_foreach(qemu_find_opts("add-fd"),
3997 cleanup_add_fd, NULL, &error_fatal);
4000 current_machine = MACHINE(object_new(object_class_get_name(
4001 OBJECT_CLASS(machine_class))));
4002 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4005 object_property_add_child(object_get_root(), "machine",
4006 OBJECT(current_machine), &error_abort);
4008 if (machine_class->minimum_page_bits) {
4009 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4010 /* This would be a board error: specifying a minimum smaller than
4011 * a target's compile-time fixed setting.
4013 g_assert_not_reached();
4017 cpu_exec_init_all();
4019 if (machine_class->hw_version) {
4020 qemu_set_hw_version(machine_class->hw_version);
4023 if (cpu_model && is_help_option(cpu_model)) {
4024 list_cpus(stdout, &fprintf, cpu_model);
4028 if (!trace_init_backends()) {
4031 trace_init_file(trace_file);
4033 /* Open the logfile at this point and set the log mask if necessary.
4036 qemu_set_log_filename(log_file, &error_fatal);
4041 mask = qemu_str_to_log_mask(log_mask);
4043 qemu_print_log_usage(stdout);
4051 /* add configured firmware directories */
4052 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4053 for (i = 0; dirs[i] != NULL; i++) {
4054 qemu_add_data_dir(dirs[i]);
4058 /* try to find datadir relative to the executable path */
4059 dir = os_find_datadir();
4060 qemu_add_data_dir(dir);
4063 /* add the datadir specified when building */
4064 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4066 /* -L help lists the data directories and exits. */
4067 if (list_data_dirs) {
4068 for (i = 0; i < data_dir_idx; i++) {
4069 printf("%s\n", data_dir[i]);
4074 /* machine_class: default to UP */
4075 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4076 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4077 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4079 /* default to machine_class->default_cpus */
4080 smp_cpus = machine_class->default_cpus;
4081 max_cpus = machine_class->default_cpus;
4083 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4085 /* sanity-check smp_cpus and max_cpus against machine_class */
4086 if (smp_cpus < machine_class->min_cpus) {
4087 error_report("Invalid SMP CPUs %d. The min CPUs "
4088 "supported by machine '%s' is %d", smp_cpus,
4089 machine_class->name, machine_class->min_cpus);
4092 if (max_cpus > machine_class->max_cpus) {
4093 error_report("Invalid SMP CPUs %d. The max CPUs "
4094 "supported by machine '%s' is %d", max_cpus,
4095 machine_class->name, machine_class->max_cpus);
4100 * Get the default machine options from the machine if it is not already
4101 * specified either by the configuration file or by the command line.
4103 if (machine_class->default_machine_opts) {
4104 qemu_opts_set_defaults(qemu_find_opts("machine"),
4105 machine_class->default_machine_opts, 0);
4108 qemu_opts_foreach(qemu_find_opts("device"),
4109 default_driver_check, NULL, NULL);
4110 qemu_opts_foreach(qemu_find_opts("global"),
4111 default_driver_check, NULL, NULL);
4113 if (!vga_model && !default_vga) {
4114 vga_interface_type = VGA_DEVICE;
4116 if (!has_defaults || machine_class->no_serial) {
4119 if (!has_defaults || machine_class->no_parallel) {
4120 default_parallel = 0;
4122 if (!has_defaults || machine_class->no_floppy) {
4125 if (!has_defaults || machine_class->no_cdrom) {
4128 if (!has_defaults || machine_class->no_sdcard) {
4131 if (!has_defaults) {
4132 default_monitor = 0;
4137 if (is_daemonized()) {
4138 if (!preconfig_exit_requested) {
4139 error_report("'preconfig' and 'daemonize' options are "
4140 "mutually exclusive");
4144 /* According to documentation and historically, -nographic redirects
4145 * serial port, parallel port and monitor to stdio, which does not work
4146 * with -daemonize. We can redirect these to null instead, but since
4147 * -nographic is legacy, let's just error out.
4148 * We disallow -nographic only if all other ports are not redirected
4149 * explicitly, to not break existing legacy setups which uses
4150 * -nographic _and_ redirects all ports explicitly - this is valid
4151 * usage, -nographic is just a no-op in this case.
4154 && (default_parallel || default_serial || default_monitor)) {
4155 error_report("-nographic cannot be used with -daemonize");
4158 #ifdef CONFIG_CURSES
4159 if (dpy.type == DISPLAY_TYPE_CURSES) {
4160 error_report("curses display cannot be used with -daemonize");
4167 if (default_parallel)
4168 add_device_config(DEV_PARALLEL, "null");
4169 if (default_serial && default_monitor) {
4170 add_device_config(DEV_SERIAL, "mon:stdio");
4173 add_device_config(DEV_SERIAL, "stdio");
4174 if (default_monitor)
4175 monitor_parse("stdio", "readline", false);
4179 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4180 if (default_parallel)
4181 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4182 if (default_monitor)
4183 monitor_parse("vc:80Cx24C", "readline", false);
4186 #if defined(CONFIG_VNC)
4187 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4191 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4192 if (!qemu_display_find_default(&dpy)) {
4193 dpy.type = DISPLAY_TYPE_NONE;
4194 #if defined(CONFIG_VNC)
4195 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4199 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4200 dpy.type = DISPLAY_TYPE_NONE;
4203 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4204 error_report("-alt-grab and -ctrl-grab are only valid "
4205 "for SDL, ignoring option");
4207 if (dpy.has_window_close &&
4208 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4209 error_report("-no-quit is only valid for GTK and SDL, "
4213 qemu_display_early_init(&dpy);
4214 qemu_console_early_init();
4216 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4217 #if defined(CONFIG_OPENGL)
4218 error_report("OpenGL is not supported by the display");
4220 error_report("OpenGL support is disabled");
4228 qemu_opts_foreach(qemu_find_opts("object"),
4229 user_creatable_add_opts_foreach,
4230 object_create_initial, &error_fatal);
4232 qemu_opts_foreach(qemu_find_opts("chardev"),
4233 chardev_init_func, NULL, &error_fatal);
4235 #ifdef CONFIG_VIRTFS
4236 qemu_opts_foreach(qemu_find_opts("fsdev"),
4237 fsdev_init_func, NULL, &error_fatal);
4240 if (qemu_opts_foreach(qemu_find_opts("device"),
4241 device_help_func, NULL, NULL)) {
4245 machine_opts = qemu_get_machine_opts();
4246 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4249 configure_accelerator(current_machine, argv[0]);
4251 if (!qtest_enabled() && machine_class->deprecation_reason) {
4252 error_report("Machine type '%s' is deprecated: %s",
4253 machine_class->name, machine_class->deprecation_reason);
4257 * Register all the global properties, including accel properties,
4258 * machine properties, and user-specified ones.
4260 register_global_properties(current_machine);
4263 * Migration object can only be created after global properties
4264 * are applied correctly.
4266 migration_object_init();
4269 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4272 machine_opts = qemu_get_machine_opts();
4273 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4274 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4275 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4276 bios_name = qemu_opt_get(machine_opts, "firmware");
4278 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4280 boot_order = qemu_opt_get(opts, "order");
4282 validate_bootdevices(boot_order, &error_fatal);
4285 boot_once = qemu_opt_get(opts, "once");
4287 validate_bootdevices(boot_once, &error_fatal);
4290 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4291 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4295 boot_order = machine_class->default_boot_order;
4298 if (!kernel_cmdline) {
4299 kernel_cmdline = "";
4300 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4303 linux_boot = (kernel_filename != NULL);
4305 if (!linux_boot && *kernel_cmdline != '\0') {
4306 error_report("-append only allowed with -kernel option");
4310 if (!linux_boot && initrd_filename != NULL) {
4311 error_report("-initrd only allowed with -kernel option");
4315 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4316 /* fall back to the -kernel/-append */
4317 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4320 os_set_line_buffering();
4322 /* spice needs the timers to be initialized by this point */
4327 if (!tcg_enabled()) {
4328 error_report("-icount is not allowed with hardware virtualization");
4331 configure_icount(icount_opts, &error_abort);
4332 qemu_opts_del(icount_opts);
4335 if (tcg_enabled()) {
4336 qemu_tcg_configure(accel_opts, &error_fatal);
4340 QemuOptsList *net = qemu_find_opts("net");
4341 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4343 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4347 if (net_init_clients(&err) < 0) {
4348 error_report_err(err);
4352 qemu_opts_foreach(qemu_find_opts("object"),
4353 user_creatable_add_opts_foreach,
4354 object_create_delayed, &error_fatal);
4358 /* init the bluetooth world */
4359 if (foreach_device_config(DEV_BT, bt_parse))
4362 if (!xen_enabled()) {
4363 /* On 32-bit hosts, QEMU is limited by virtual address space */
4364 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4365 error_report("at most 2047 MB RAM can be simulated");
4372 dirty_bitmap_mig_init();
4374 /* If the currently selected machine wishes to override the units-per-bus
4375 * property of its default HBA interface type, do so now. */
4376 if (machine_class->units_per_default_bus) {
4377 override_max_devs(machine_class->block_default_type,
4378 machine_class->units_per_default_bus);
4381 /* open the virtual block devices */
4382 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4383 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4385 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4386 loc_push_restore(&bdo->loc);
4387 qmp_blockdev_add(bdo->bdo, &error_fatal);
4389 qapi_free_BlockdevOptions(bdo->bdo);
4392 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4393 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4396 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4397 &machine_class->block_default_type, &error_fatal)) {
4398 /* We printed help */
4402 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4404 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4405 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4407 qemu_opts_foreach(qemu_find_opts("mon"),
4408 mon_init_func, NULL, &error_fatal);
4410 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4412 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4414 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4417 /* If no default VGA is requested, the default is "none". */
4419 if (machine_class->default_display) {
4420 vga_model = machine_class->default_display;
4421 } else if (vga_interface_available(VGA_CIRRUS)) {
4422 vga_model = "cirrus";
4423 } else if (vga_interface_available(VGA_STD)) {
4428 select_vgahw(vga_model);
4432 i = select_watchdog(watchdog);
4434 exit (i == 1 ? 1 : 0);
4437 /* This checkpoint is required by replay to separate prior clock
4438 reading from the other reads, because timer polling functions query
4439 clock values from the log. */
4440 replay_checkpoint(CHECKPOINT_INIT);
4441 qdev_machine_init();
4443 current_machine->ram_size = ram_size;
4444 current_machine->maxram_size = maxram_size;
4445 current_machine->ram_slots = ram_slots;
4446 current_machine->boot_order = boot_order;
4448 /* parse features once if machine provides default cpu_type */
4449 current_machine->cpu_type = machine_class->default_cpu_type;
4451 current_machine->cpu_type = parse_cpu_model(cpu_model);
4453 parse_numa_opts(current_machine);
4455 /* do monitor/qmp handling at preconfig state if requested */
4458 /* from here on runstate is RUN_STATE_PRELAUNCH */
4459 machine_run_board_init(current_machine);
4465 if (hax_enabled()) {
4469 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4470 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4472 /* init USB devices */
4473 if (machine_usb(current_machine)) {
4474 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4478 /* Check if IGD GFX passthrough. */
4481 /* init generic devices */
4482 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4483 qemu_opts_foreach(qemu_find_opts("device"),
4484 device_init_func, NULL, &error_fatal);
4486 cpu_synchronize_all_post_init();
4488 rom_reset_order_override();
4490 /* Did we create any drives that we failed to create a device for? */
4491 drive_check_orphaned();
4493 /* Don't warn about the default network setup that you get if
4494 * no command line -net or -netdev options are specified. There
4495 * are two cases that we would otherwise complain about:
4496 * (1) board doesn't support a NIC but the implicit "-net nic"
4498 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4499 * sets up a nic that isn't connected to anything.
4501 if (!default_net && (!qtest_enabled() || has_defaults)) {
4502 net_check_clients();
4506 qemu_boot_set(boot_once, &error_fatal);
4507 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4510 /* init local displays */
4511 ds = init_displaystate();
4512 qemu_display_init(ds, &dpy);
4514 /* must be after terminal init, SDL library changes signal handlers */
4515 os_setup_signal_handling();
4517 /* init remote displays */
4519 qemu_opts_foreach(qemu_find_opts("vnc"),
4520 vnc_init_func, NULL, &error_fatal);
4524 qemu_spice_display_init();
4527 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4531 qdev_machine_creation_done();
4533 /* TODO: once all bus devices are qdevified, this should be done
4534 * when bus is created by qdev.c */
4535 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4536 qemu_run_machine_init_done_notifiers();
4538 if (rom_check_and_register_reset() != 0) {
4539 error_report("rom check and register reset failed");
4545 /* This checkpoint is required by replay to separate prior clock
4546 reading from the other reads, because timer polling functions query
4547 clock values from the log. */
4548 replay_checkpoint(CHECKPOINT_RESET);
4549 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4550 register_global_state();
4552 Error *local_err = NULL;
4553 if (load_snapshot(loadvm, &local_err) < 0) {
4554 error_report_err(local_err);
4559 if (replay_mode != REPLAY_MODE_NONE) {
4560 replay_vmstate_init();
4563 qdev_prop_check_globals();
4564 if (vmstate_dump_file) {
4566 dump_vmstate_json_to_file(vmstate_dump_file);
4571 Error *local_err = NULL;
4572 qemu_start_incoming_migration(incoming, &local_err);
4574 error_reportf_err(local_err, "-incoming %s: ", incoming);
4577 } else if (autostart) {
4581 accel_setup_post(current_machine);
4586 gdbserver_cleanup();
4588 /* No more vcpu or device emulation activity beyond this point */
4591 job_cancel_sync_all();
4596 /* vhost-user must be cleaned up before chardevs. */
4602 user_creatable_cleanup();
4603 migration_object_finalize();
4604 /* TODO: unref root container, check all devices are ok */