4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
39 #include "qemu/error-report.h"
40 #include "qemu/sockets.h"
41 #include "sysemu/accel.h"
43 #include "hw/isa/isa.h"
44 #include "hw/scsi/scsi.h"
45 #include "hw/display/vga.h"
46 #include "sysemu/watchdog.h"
47 #include "hw/firmware/smbios.h"
48 #include "hw/acpi/acpi.h"
49 #include "hw/xen/xen.h"
50 #include "hw/loader.h"
51 #include "monitor/qdev.h"
53 #include "net/slirp.h"
54 #include "monitor/monitor.h"
55 #include "ui/console.h"
57 #include "sysemu/sysemu.h"
58 #include "sysemu/numa.h"
59 #include "sysemu/hostmem.h"
60 #include "exec/gdbstub.h"
61 #include "qemu/timer.h"
62 #include "chardev/char.h"
63 #include "qemu/bitmap.h"
65 #include "sysemu/blockdev.h"
66 #include "hw/block/block.h"
67 #include "migration/misc.h"
68 #include "migration/snapshot.h"
69 #include "migration/global_state.h"
70 #include "sysemu/tpm.h"
71 #include "sysemu/dma.h"
72 #include "hw/audio/soundhw.h"
73 #include "audio/audio.h"
74 #include "sysemu/cpus.h"
75 #include "migration/colo.h"
76 #include "migration/postcopy-ram.h"
77 #include "sysemu/kvm.h"
78 #include "sysemu/hax.h"
79 #include "qapi/qobject-input-visitor.h"
80 #include "qemu/option.h"
81 #include "qemu/config-file.h"
82 #include "qemu-options.h"
83 #include "qemu/main-loop.h"
85 #include "fsdev/qemu-fsdev.h"
87 #include "sysemu/qtest.h"
89 #include "disas/disas.h"
91 #include "trace-root.h"
92 #include "trace/control.h"
93 #include "qemu/plugin.h"
94 #include "qemu/queue.h"
95 #include "sysemu/arch_init.h"
97 #include "ui/qemu-spice.h"
98 #include "qapi/string-input-visitor.h"
99 #include "qapi/opts-visitor.h"
100 #include "qapi/clone-visitor.h"
101 #include "qom/object_interfaces.h"
102 #include "hw/semihosting/semihost.h"
103 #include "crypto/init.h"
104 #include "sysemu/replay.h"
105 #include "qapi/qapi-events-run-state.h"
106 #include "qapi/qapi-visit-block-core.h"
107 #include "qapi/qapi-visit-ui.h"
108 #include "qapi/qapi-commands-block-core.h"
109 #include "qapi/qapi-commands-run-state.h"
110 #include "qapi/qapi-commands-ui.h"
111 #include "qapi/qmp/qerror.h"
112 #include "sysemu/iothread.h"
113 #include "qemu/guest-random.h"
115 #define MAX_VIRTIO_CONSOLES 1
117 static const char *data_dir[16];
118 static int data_dir_idx;
119 const char *bios_name = NULL;
120 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
122 const char* keyboard_layout = NULL;
124 bool enable_mlock = false;
125 bool enable_cpu_pm = false;
127 NICInfo nd_table[MAX_NICS];
133 } rtc_base_type = RTC_BASE_UTC;
134 static time_t rtc_ref_start_datetime;
135 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
136 static int rtc_host_datetime_offset = -1; /* valid & used only with
138 QEMUClockType rtc_clock;
139 int vga_interface_type = VGA_NONE;
140 static DisplayOptions dpy;
141 static int num_serial_hds;
142 static Chardev **serial_hds;
143 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
144 int win2k_install_hack = 0;
146 int acpi_enabled = 1;
149 static int no_reboot;
151 int graphic_rotate = 0;
152 const char *watchdog;
153 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
156 const char *qemu_name;
159 unsigned int nb_prom_envs = 0;
160 const char *prom_envs[MAX_PROM_ENVS];
163 uint8_t *boot_splash_filedata;
164 int only_migratable; /* turn it off unless user states otherwise */
165 bool wakeup_suspend_enabled;
167 int icount_align_option;
169 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
170 * little-endian "wire format" described in the SMBIOS 2.6 specification.
175 static NotifierList exit_notifiers =
176 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
178 static NotifierList machine_init_done_notifiers =
179 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
183 enum xen_mode xen_mode = XEN_EMULATE;
184 bool xen_domid_restrict;
186 static int has_defaults = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
200 { .driver = "isa-serial", .flag = &default_serial },
201 { .driver = "isa-parallel", .flag = &default_parallel },
202 { .driver = "isa-fdc", .flag = &default_floppy },
203 { .driver = "floppy", .flag = &default_floppy },
204 { .driver = "ide-cd", .flag = &default_cdrom },
205 { .driver = "ide-hd", .flag = &default_cdrom },
206 { .driver = "ide-drive", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
220 static QemuOptsList qemu_rtc_opts = {
222 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
227 .type = QEMU_OPT_STRING,
230 .type = QEMU_OPT_STRING,
233 .type = QEMU_OPT_STRING,
235 { /* end of list */ }
239 static QemuOptsList qemu_option_rom_opts = {
240 .name = "option-rom",
241 .implied_opt_name = "romfile",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
246 .type = QEMU_OPT_NUMBER,
249 .type = QEMU_OPT_STRING,
251 { /* end of list */ }
255 static QemuOptsList qemu_machine_opts = {
257 .implied_opt_name = "type",
259 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting machine properties
270 static QemuOptsList qemu_accel_opts = {
272 .implied_opt_name = "accel",
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
276 * no elements => accept any
277 * sanity checking will happen later
278 * when setting accelerator properties
284 static QemuOptsList qemu_boot_opts = {
286 .implied_opt_name = "order",
288 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
292 .type = QEMU_OPT_STRING,
295 .type = QEMU_OPT_STRING,
298 .type = QEMU_OPT_BOOL,
301 .type = QEMU_OPT_STRING,
303 .name = "splash-time",
304 .type = QEMU_OPT_NUMBER,
306 .name = "reboot-timeout",
307 .type = QEMU_OPT_NUMBER,
310 .type = QEMU_OPT_BOOL,
316 static QemuOptsList qemu_add_fd_opts = {
318 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
322 .type = QEMU_OPT_NUMBER,
323 .help = "file descriptor of which a duplicate is added to fd set",
326 .type = QEMU_OPT_NUMBER,
327 .help = "ID of the fd set to add fd to",
330 .type = QEMU_OPT_STRING,
331 .help = "free-form string used to describe fd",
333 { /* end of list */ }
337 static QemuOptsList qemu_object_opts = {
339 .implied_opt_name = "qom-type",
340 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
346 static QemuOptsList qemu_tpmdev_opts = {
348 .implied_opt_name = "type",
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
351 /* options are defined in the TPM backends */
352 { /* end of list */ }
356 static QemuOptsList qemu_realtime_opts = {
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
362 .type = QEMU_OPT_BOOL,
364 { /* end of list */ }
368 static QemuOptsList qemu_overcommit_opts = {
369 .name = "overcommit",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
374 .type = QEMU_OPT_BOOL,
378 .type = QEMU_OPT_BOOL,
380 { /* end of list */ }
384 static QemuOptsList qemu_msg_opts = {
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
390 .type = QEMU_OPT_BOOL,
392 { /* end of list */ }
396 static QemuOptsList qemu_name_opts = {
398 .implied_opt_name = "guest",
400 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
404 .type = QEMU_OPT_STRING,
405 .help = "Sets the name of the guest.\n"
406 "This name will be displayed in the SDL window caption.\n"
407 "The name will also be used for the VNC server",
410 .type = QEMU_OPT_STRING,
411 .help = "Sets the name of the QEMU process, as shown in top etc",
413 .name = "debug-threads",
414 .type = QEMU_OPT_BOOL,
415 .help = "When enabled, name the individual threads; defaults off.\n"
416 "NOTE: The thread names are for debugging and not a\n"
419 { /* End of list */ }
423 static QemuOptsList qemu_mem_opts = {
425 .implied_opt_name = "size",
426 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
431 .type = QEMU_OPT_SIZE,
435 .type = QEMU_OPT_NUMBER,
439 .type = QEMU_OPT_SIZE,
441 { /* end of list */ }
445 static QemuOptsList qemu_icount_opts = {
447 .implied_opt_name = "shift",
449 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
453 .type = QEMU_OPT_STRING,
456 .type = QEMU_OPT_BOOL,
459 .type = QEMU_OPT_BOOL,
462 .type = QEMU_OPT_STRING,
465 .type = QEMU_OPT_STRING,
467 .name = "rrsnapshot",
468 .type = QEMU_OPT_STRING,
470 { /* end of list */ }
474 static QemuOptsList qemu_fw_cfg_opts = {
476 .implied_opt_name = "name",
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
481 .type = QEMU_OPT_STRING,
482 .help = "Sets the fw_cfg name of the blob to be inserted",
485 .type = QEMU_OPT_STRING,
486 .help = "Sets the name of the file from which "
487 "the fw_cfg blob will be loaded",
490 .type = QEMU_OPT_STRING,
491 .help = "Sets content of the blob to be inserted from a string",
493 { /* end of list */ }
498 * Get machine options
500 * Returns: machine options (never null).
502 QemuOpts *qemu_get_machine_opts(void)
504 return qemu_find_opts_singleton("machine");
507 const char *qemu_get_vm_name(void)
512 static void res_free(void)
514 g_free(boot_splash_filedata);
515 boot_splash_filedata = NULL;
518 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
520 const char *driver = qemu_opt_get(opts, "driver");
525 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
526 if (strcmp(default_list[i].driver, driver) != 0)
528 *(default_list[i].flag) = 0;
533 /***********************************************************/
536 static RunState current_run_state = RUN_STATE_PRECONFIG;
538 /* We use RUN_STATE__MAX but any invalid value will do */
539 static RunState vmstop_requested = RUN_STATE__MAX;
540 static QemuMutex vmstop_lock;
545 } RunStateTransition;
547 static const RunStateTransition runstate_transitions_def[] = {
549 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
550 /* Early switch to inmigrate state to allow -incoming CLI option work
551 * as it used to. TODO: delay actual switching to inmigrate state to
552 * the point after machine is built and remove this hack.
554 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
556 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
557 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
558 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
560 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
561 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
562 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
563 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
564 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
565 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
566 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
567 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
568 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
569 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
570 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
571 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
573 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
574 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
575 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
577 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
578 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
581 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
582 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
583 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
584 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
585 { RUN_STATE_PAUSED, RUN_STATE_COLO},
587 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
588 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
591 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
592 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
593 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
595 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
596 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
597 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
598 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
599 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
601 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
602 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
604 { RUN_STATE_COLO, RUN_STATE_RUNNING },
606 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
607 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
608 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
609 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
610 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
612 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
613 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
614 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
615 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_RUNNING, RUN_STATE_COLO},
618 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
620 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
621 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
624 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
625 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
626 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
627 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
629 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
631 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
632 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
634 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
636 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
637 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
640 { RUN_STATE__MAX, RUN_STATE__MAX },
643 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
645 bool runstate_check(RunState state)
647 return current_run_state == state;
650 bool runstate_store(char *str, size_t size)
652 const char *state = RunState_str(current_run_state);
653 size_t len = strlen(state) + 1;
658 memcpy(str, state, len);
662 static void runstate_init(void)
664 const RunStateTransition *p;
666 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
667 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
668 runstate_valid_transitions[p->from][p->to] = true;
671 qemu_mutex_init(&vmstop_lock);
674 /* This function will abort() on invalid state transitions */
675 void runstate_set(RunState new_state)
677 assert(new_state < RUN_STATE__MAX);
679 trace_runstate_set(current_run_state, RunState_str(current_run_state),
680 new_state, RunState_str(new_state));
682 if (current_run_state == new_state) {
686 if (!runstate_valid_transitions[current_run_state][new_state]) {
687 error_report("invalid runstate transition: '%s' -> '%s'",
688 RunState_str(current_run_state),
689 RunState_str(new_state));
693 current_run_state = new_state;
696 int runstate_is_running(void)
698 return runstate_check(RUN_STATE_RUNNING);
701 bool runstate_needs_reset(void)
703 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
704 runstate_check(RUN_STATE_SHUTDOWN);
707 StatusInfo *qmp_query_status(Error **errp)
709 StatusInfo *info = g_malloc0(sizeof(*info));
711 info->running = runstate_is_running();
712 info->singlestep = singlestep;
713 info->status = current_run_state;
718 bool qemu_vmstop_requested(RunState *r)
720 qemu_mutex_lock(&vmstop_lock);
721 *r = vmstop_requested;
722 vmstop_requested = RUN_STATE__MAX;
723 qemu_mutex_unlock(&vmstop_lock);
724 return *r < RUN_STATE__MAX;
727 void qemu_system_vmstop_request_prepare(void)
729 qemu_mutex_lock(&vmstop_lock);
732 void qemu_system_vmstop_request(RunState state)
734 vmstop_requested = state;
735 qemu_mutex_unlock(&vmstop_lock);
739 /***********************************************************/
740 /* RTC reference time/date access */
741 static time_t qemu_ref_timedate(QEMUClockType clock)
743 time_t value = qemu_clock_get_ms(clock) / 1000;
745 case QEMU_CLOCK_REALTIME:
746 value -= rtc_realtime_clock_offset;
748 case QEMU_CLOCK_VIRTUAL:
749 value += rtc_ref_start_datetime;
751 case QEMU_CLOCK_HOST:
752 if (rtc_base_type == RTC_BASE_DATETIME) {
753 value -= rtc_host_datetime_offset;
762 void qemu_get_timedate(struct tm *tm, int offset)
764 time_t ti = qemu_ref_timedate(rtc_clock);
768 switch (rtc_base_type) {
769 case RTC_BASE_DATETIME:
773 case RTC_BASE_LOCALTIME:
774 localtime_r(&ti, tm);
779 int qemu_timedate_diff(struct tm *tm)
783 switch (rtc_base_type) {
784 case RTC_BASE_DATETIME:
786 seconds = mktimegm(tm);
788 case RTC_BASE_LOCALTIME:
791 tmp.tm_isdst = -1; /* use timezone to figure it out */
792 seconds = mktime(&tmp);
799 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
802 static void configure_rtc_base_datetime(const char *startdate)
804 time_t rtc_start_datetime;
807 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
808 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
810 } else if (sscanf(startdate, "%d-%d-%d",
811 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
820 rtc_start_datetime = mktimegm(&tm);
821 if (rtc_start_datetime == -1) {
823 error_report("invalid datetime format");
824 error_printf("valid formats: "
825 "'2006-06-17T16:01:21' or '2006-06-17'\n");
828 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
829 rtc_ref_start_datetime = rtc_start_datetime;
832 static void configure_rtc(QemuOpts *opts)
837 rtc_clock = QEMU_CLOCK_HOST;
838 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
839 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
841 value = qemu_opt_get(opts, "base");
843 if (!strcmp(value, "utc")) {
844 rtc_base_type = RTC_BASE_UTC;
845 } else if (!strcmp(value, "localtime")) {
846 Error *blocker = NULL;
847 rtc_base_type = RTC_BASE_LOCALTIME;
848 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
849 "-rtc base=localtime");
850 replay_add_blocker(blocker);
852 rtc_base_type = RTC_BASE_DATETIME;
853 configure_rtc_base_datetime(value);
856 value = qemu_opt_get(opts, "clock");
858 if (!strcmp(value, "host")) {
859 rtc_clock = QEMU_CLOCK_HOST;
860 } else if (!strcmp(value, "rt")) {
861 rtc_clock = QEMU_CLOCK_REALTIME;
862 } else if (!strcmp(value, "vm")) {
863 rtc_clock = QEMU_CLOCK_VIRTUAL;
865 error_report("invalid option value '%s'", value);
869 value = qemu_opt_get(opts, "driftfix");
871 if (!strcmp(value, "slew")) {
872 object_register_sugar_prop("mc146818rtc",
875 } else if (!strcmp(value, "none")) {
876 /* discard is default */
878 error_report("invalid option value '%s'", value);
884 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
886 const char *proc_name;
888 if (qemu_opt_get(opts, "debug-threads")) {
889 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
891 qemu_name = qemu_opt_get(opts, "guest");
893 proc_name = qemu_opt_get(opts, "process");
895 os_set_proc_name(proc_name);
901 bool defaults_enabled(void)
907 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
909 int fd, dupfd, flags;
911 const char *fd_opaque = NULL;
914 fd = qemu_opt_get_number(opts, "fd", -1);
915 fdset_id = qemu_opt_get_number(opts, "set", -1);
916 fd_opaque = qemu_opt_get(opts, "opaque");
919 error_setg(errp, "fd option is required and must be non-negative");
923 if (fd <= STDERR_FILENO) {
924 error_setg(errp, "fd cannot be a standard I/O stream");
929 * All fds inherited across exec() necessarily have FD_CLOEXEC
930 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
932 flags = fcntl(fd, F_GETFD);
933 if (flags == -1 || (flags & FD_CLOEXEC)) {
934 error_setg(errp, "fd is not valid or already in use");
939 error_setg(errp, "set option is required and must be non-negative");
943 #ifdef F_DUPFD_CLOEXEC
944 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
948 qemu_set_cloexec(dupfd);
952 error_setg(errp, "error duplicating fd: %s", strerror(errno));
956 /* add the duplicate fd, and optionally the opaque string, to the fd set */
957 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
964 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
968 fd = qemu_opt_get_number(opts, "fd", -1);
975 /***********************************************************/
976 /* QEMU Block devices */
978 #define HD_OPTS "media=disk"
979 #define CDROM_OPTS "media=cdrom"
981 #define PFLASH_OPTS ""
985 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
987 BlockInterfaceType *block_default_type = opaque;
989 return drive_new(opts, *block_default_type, errp) == NULL;
992 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
994 if (qemu_opt_get(opts, "snapshot") == NULL) {
995 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1000 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1001 int index, const char *optstr)
1006 if (!enable || drive_get_by_index(type, index)) {
1010 opts = drive_add(type, index, NULL, optstr);
1012 drive_enable_snapshot(NULL, opts, NULL);
1015 dinfo = drive_new(opts, type, &error_abort);
1016 dinfo->is_default = true;
1020 typedef struct BlockdevOptionsQueueEntry {
1021 BlockdevOptions *bdo;
1023 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1024 } BlockdevOptionsQueueEntry;
1026 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1028 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1029 MachineClass *machine_class, int snapshot)
1032 * If the currently selected machine wishes to override the
1033 * units-per-bus property of its default HBA interface type, do so
1036 if (machine_class->units_per_default_bus) {
1037 override_max_devs(machine_class->block_default_type,
1038 machine_class->units_per_default_bus);
1041 /* open the virtual block devices */
1042 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1043 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1045 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1046 loc_push_restore(&bdo->loc);
1047 qmp_blockdev_add(bdo->bdo, &error_fatal);
1049 qapi_free_BlockdevOptions(bdo->bdo);
1053 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1056 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1057 &machine_class->block_default_type, &error_fatal)) {
1058 /* We printed help */
1062 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1064 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1065 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1069 static QemuOptsList qemu_smp_opts = {
1071 .implied_opt_name = "cpus",
1072 .merge_lists = true,
1073 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1077 .type = QEMU_OPT_NUMBER,
1080 .type = QEMU_OPT_NUMBER,
1083 .type = QEMU_OPT_NUMBER,
1086 .type = QEMU_OPT_NUMBER,
1089 .type = QEMU_OPT_NUMBER,
1092 .type = QEMU_OPT_NUMBER,
1094 { /*End of list */ }
1098 static void realtime_init(void)
1101 if (os_mlock() < 0) {
1102 error_report("locking memory failed");
1109 static void configure_msg(QemuOpts *opts)
1111 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1115 /***********************************************************/
1118 static int usb_device_add(const char *devname)
1120 USBDevice *dev = NULL;
1122 if (!machine_usb(current_machine)) {
1126 dev = usbdevice_create(devname);
1133 static int usb_parse(const char *cmdline)
1136 r = usb_device_add(cmdline);
1138 error_report("could not add USB device '%s'", cmdline);
1143 /***********************************************************/
1144 /* machine registration */
1146 MachineState *current_machine;
1148 static MachineClass *find_machine(const char *name, GSList *machines)
1152 for (el = machines; el; el = el->next) {
1153 MachineClass *mc = el->data;
1155 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1163 static MachineClass *find_default_machine(GSList *machines)
1166 MachineClass *default_machineclass = NULL;
1168 for (el = machines; el; el = el->next) {
1169 MachineClass *mc = el->data;
1171 if (mc->is_default) {
1172 assert(default_machineclass == NULL && "Multiple default machines");
1173 default_machineclass = mc;
1177 return default_machineclass;
1180 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1182 ObjectProperty *prop;
1183 ObjectPropertyIterator iter;
1185 if (!qemu_opt_has_help_opt(opts)) {
1189 object_property_iter_init(&iter, OBJECT(machine));
1190 while ((prop = object_property_iter_next(&iter))) {
1195 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1196 prop->name, prop->type);
1197 if (prop->description) {
1198 printf(" (%s)\n", prop->description);
1207 struct VMChangeStateEntry {
1208 VMChangeStateHandler *cb;
1210 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1214 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1217 * qemu_add_vm_change_state_handler_prio:
1218 * @cb: the callback to invoke
1219 * @opaque: user data passed to the callback
1220 * @priority: low priorities execute first when the vm runs and the reverse is
1221 * true when the vm stops
1223 * Register a callback function that is invoked when the vm starts or stops
1226 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1228 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1229 VMChangeStateHandler *cb, void *opaque, int priority)
1231 VMChangeStateEntry *e;
1232 VMChangeStateEntry *other;
1234 e = g_malloc0(sizeof(*e));
1237 e->priority = priority;
1239 /* Keep list sorted in ascending priority order */
1240 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1241 if (priority < other->priority) {
1242 QTAILQ_INSERT_BEFORE(other, e, entries);
1247 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1251 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1254 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1257 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1259 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1263 void vm_state_notify(int running, RunState state)
1265 VMChangeStateEntry *e, *next;
1267 trace_vm_state_notify(running, state, RunState_str(state));
1270 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1271 e->cb(e->opaque, running, state);
1274 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1275 e->cb(e->opaque, running, state);
1280 static ShutdownCause reset_requested;
1281 static ShutdownCause shutdown_requested;
1282 static int shutdown_signal;
1283 static pid_t shutdown_pid;
1284 static int powerdown_requested;
1285 static int debug_requested;
1286 static int suspend_requested;
1287 static bool preconfig_exit_requested = true;
1288 static WakeupReason wakeup_reason;
1289 static NotifierList powerdown_notifiers =
1290 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1291 static NotifierList suspend_notifiers =
1292 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1293 static NotifierList wakeup_notifiers =
1294 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1295 static NotifierList shutdown_notifiers =
1296 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1297 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1299 ShutdownCause qemu_shutdown_requested_get(void)
1301 return shutdown_requested;
1304 ShutdownCause qemu_reset_requested_get(void)
1306 return reset_requested;
1309 static int qemu_shutdown_requested(void)
1311 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1314 static void qemu_kill_report(void)
1316 if (!qtest_driver() && shutdown_signal) {
1317 if (shutdown_pid == 0) {
1318 /* This happens for eg ^C at the terminal, so it's worth
1319 * avoiding printing an odd message in that case.
1321 error_report("terminating on signal %d", shutdown_signal);
1323 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1325 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1326 shutdown_signal, shutdown_pid,
1327 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1328 g_free(shutdown_cmd);
1330 shutdown_signal = 0;
1334 static ShutdownCause qemu_reset_requested(void)
1336 ShutdownCause r = reset_requested;
1338 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1339 reset_requested = SHUTDOWN_CAUSE_NONE;
1342 return SHUTDOWN_CAUSE_NONE;
1345 static int qemu_suspend_requested(void)
1347 int r = suspend_requested;
1348 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1349 suspend_requested = 0;
1355 static WakeupReason qemu_wakeup_requested(void)
1357 return wakeup_reason;
1360 static int qemu_powerdown_requested(void)
1362 int r = powerdown_requested;
1363 powerdown_requested = 0;
1367 static int qemu_debug_requested(void)
1369 int r = debug_requested;
1370 debug_requested = 0;
1374 void qemu_exit_preconfig_request(void)
1376 preconfig_exit_requested = true;
1380 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1382 void qemu_system_reset(ShutdownCause reason)
1386 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1388 cpu_synchronize_all_states();
1390 if (mc && mc->reset) {
1391 mc->reset(current_machine);
1393 qemu_devices_reset();
1395 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1396 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1398 cpu_synchronize_all_post_reset();
1402 * Wake the VM after suspend.
1404 static void qemu_system_wakeup(void)
1408 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1410 if (mc && mc->wakeup) {
1411 mc->wakeup(current_machine);
1415 void qemu_system_guest_panicked(GuestPanicInformation *info)
1417 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1420 current_cpu->crash_occurred = true;
1422 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1424 vm_stop(RUN_STATE_GUEST_PANICKED);
1426 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1428 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1432 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1433 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1434 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1435 info->u.hyper_v.arg1,
1436 info->u.hyper_v.arg2,
1437 info->u.hyper_v.arg3,
1438 info->u.hyper_v.arg4,
1439 info->u.hyper_v.arg5);
1440 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1441 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1442 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1444 S390CrashReason_str(info->u.s390.reason),
1445 info->u.s390.psw_mask,
1446 info->u.s390.psw_addr);
1448 qapi_free_GuestPanicInformation(info);
1452 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1454 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1456 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1460 qapi_free_GuestPanicInformation(info);
1464 void qemu_system_reset_request(ShutdownCause reason)
1466 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1467 shutdown_requested = reason;
1469 reset_requested = reason;
1472 qemu_notify_event();
1475 static void qemu_system_suspend(void)
1478 notifier_list_notify(&suspend_notifiers, NULL);
1479 runstate_set(RUN_STATE_SUSPENDED);
1480 qapi_event_send_suspend();
1483 void qemu_system_suspend_request(void)
1485 if (runstate_check(RUN_STATE_SUSPENDED)) {
1488 suspend_requested = 1;
1490 qemu_notify_event();
1493 void qemu_register_suspend_notifier(Notifier *notifier)
1495 notifier_list_add(&suspend_notifiers, notifier);
1498 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1500 trace_system_wakeup_request(reason);
1502 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1504 "Unable to wake up: guest is not in suspended state");
1507 if (!(wakeup_reason_mask & (1 << reason))) {
1510 runstate_set(RUN_STATE_RUNNING);
1511 wakeup_reason = reason;
1512 qemu_notify_event();
1515 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1518 wakeup_reason_mask |= (1 << reason);
1520 wakeup_reason_mask &= ~(1 << reason);
1524 void qemu_register_wakeup_notifier(Notifier *notifier)
1526 notifier_list_add(&wakeup_notifiers, notifier);
1529 void qemu_register_wakeup_support(void)
1531 wakeup_suspend_enabled = true;
1534 bool qemu_wakeup_suspend_enabled(void)
1536 return wakeup_suspend_enabled;
1539 void qemu_system_killed(int signal, pid_t pid)
1541 shutdown_signal = signal;
1545 /* Cannot call qemu_system_shutdown_request directly because
1546 * we are in a signal handler.
1548 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1549 qemu_notify_event();
1552 void qemu_system_shutdown_request(ShutdownCause reason)
1554 trace_qemu_system_shutdown_request(reason);
1555 replay_shutdown_request(reason);
1556 shutdown_requested = reason;
1557 qemu_notify_event();
1560 static void qemu_system_powerdown(void)
1562 qapi_event_send_powerdown();
1563 notifier_list_notify(&powerdown_notifiers, NULL);
1566 static void qemu_system_shutdown(ShutdownCause cause)
1568 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1569 notifier_list_notify(&shutdown_notifiers, &cause);
1572 void qemu_system_powerdown_request(void)
1574 trace_qemu_system_powerdown_request();
1575 powerdown_requested = 1;
1576 qemu_notify_event();
1579 void qemu_register_powerdown_notifier(Notifier *notifier)
1581 notifier_list_add(&powerdown_notifiers, notifier);
1584 void qemu_register_shutdown_notifier(Notifier *notifier)
1586 notifier_list_add(&shutdown_notifiers, notifier);
1589 void qemu_system_debug_request(void)
1591 debug_requested = 1;
1592 qemu_notify_event();
1595 static bool main_loop_should_exit(void)
1598 ShutdownCause request;
1600 if (preconfig_exit_requested) {
1601 if (runstate_check(RUN_STATE_PRECONFIG)) {
1602 runstate_set(RUN_STATE_PRELAUNCH);
1604 preconfig_exit_requested = false;
1607 if (qemu_debug_requested()) {
1608 vm_stop(RUN_STATE_DEBUG);
1610 if (qemu_suspend_requested()) {
1611 qemu_system_suspend();
1613 request = qemu_shutdown_requested();
1616 qemu_system_shutdown(request);
1618 vm_stop(RUN_STATE_SHUTDOWN);
1623 request = qemu_reset_requested();
1626 qemu_system_reset(request);
1629 * runstate can change in pause_all_vcpus()
1630 * as iothread mutex is unlocked
1632 if (!runstate_check(RUN_STATE_RUNNING) &&
1633 !runstate_check(RUN_STATE_INMIGRATE) &&
1634 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1635 runstate_set(RUN_STATE_PRELAUNCH);
1638 if (qemu_wakeup_requested()) {
1640 qemu_system_wakeup();
1641 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1642 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1644 qapi_event_send_wakeup();
1646 if (qemu_powerdown_requested()) {
1647 qemu_system_powerdown();
1649 if (qemu_vmstop_requested(&r)) {
1655 void qemu_main_loop(void)
1657 #ifdef CONFIG_PROFILER
1660 while (!main_loop_should_exit()) {
1661 #ifdef CONFIG_PROFILER
1662 ti = profile_getclock();
1664 main_loop_wait(false);
1665 #ifdef CONFIG_PROFILER
1666 dev_time += profile_getclock() - ti;
1671 static void version(void)
1673 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1674 QEMU_COPYRIGHT "\n");
1677 static void help(int exitcode)
1680 printf("usage: %s [options] [disk_image]\n\n"
1681 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1682 error_get_progname());
1684 #define QEMU_OPTIONS_GENERATE_HELP
1685 #include "qemu-options-wrapper.h"
1687 printf("\nDuring emulation, the following keys are useful:\n"
1688 "ctrl-alt-f toggle full screen\n"
1689 "ctrl-alt-n switch to virtual console 'n'\n"
1690 "ctrl-alt toggle mouse and keyboard grab\n"
1692 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1694 QEMU_HELP_BOTTOM "\n");
1699 #define HAS_ARG 0x0001
1701 typedef struct QEMUOption {
1708 static const QEMUOption qemu_options[] = {
1709 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1710 #define QEMU_OPTIONS_GENERATE_OPTIONS
1711 #include "qemu-options-wrapper.h"
1715 typedef struct VGAInterfaceInfo {
1716 const char *opt_name; /* option name */
1717 const char *name; /* human-readable name */
1718 /* Class names indicating that support is available.
1719 * If no class is specified, the interface is always available */
1720 const char *class_names[2];
1723 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1726 .name = "no graphic card",
1730 .name = "standard VGA",
1731 .class_names = { "VGA", "isa-vga" },
1734 .opt_name = "cirrus",
1735 .name = "Cirrus VGA",
1736 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1739 .opt_name = "vmware",
1740 .name = "VMWare SVGA",
1741 .class_names = { "vmware-svga" },
1744 .opt_name = "virtio",
1745 .name = "Virtio VGA",
1746 .class_names = { "virtio-vga" },
1751 .class_names = { "qxl-vga" },
1755 .name = "TCX framebuffer",
1756 .class_names = { "SUNW,tcx" },
1760 .name = "CG3 framebuffer",
1761 .class_names = { "cgthree" },
1764 .opt_name = "xenfb",
1765 .name = "Xen paravirtualized framebuffer",
1769 static bool vga_interface_available(VGAInterfaceType t)
1771 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1773 assert(t < VGA_TYPE_MAX);
1774 return !ti->class_names[0] ||
1775 object_class_by_name(ti->class_names[0]) ||
1776 object_class_by_name(ti->class_names[1]);
1780 get_default_vga_model(const MachineClass *machine_class)
1782 if (machine_class->default_display) {
1783 return machine_class->default_display;
1784 } else if (vga_interface_available(VGA_CIRRUS)) {
1786 } else if (vga_interface_available(VGA_STD)) {
1793 static void select_vgahw(const MachineClass *machine_class, const char *p)
1798 if (g_str_equal(p, "help")) {
1799 const char *def = get_default_vga_model(machine_class);
1801 for (t = 0; t < VGA_TYPE_MAX; t++) {
1802 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1804 if (vga_interface_available(t) && ti->opt_name) {
1805 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1806 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1812 assert(vga_interface_type == VGA_NONE);
1813 for (t = 0; t < VGA_TYPE_MAX; t++) {
1814 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1815 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1816 if (!vga_interface_available(t)) {
1817 error_report("%s not available", ti->name);
1820 vga_interface_type = t;
1824 if (t == VGA_TYPE_MAX) {
1826 error_report("unknown vga type: %s", p);
1830 const char *nextopt;
1832 if (strstart(opts, ",retrace=", &nextopt)) {
1834 if (strstart(opts, "dumb", &nextopt))
1835 vga_retrace_method = VGA_RETRACE_DUMB;
1836 else if (strstart(opts, "precise", &nextopt))
1837 vga_retrace_method = VGA_RETRACE_PRECISE;
1838 else goto invalid_vga;
1839 } else goto invalid_vga;
1844 static void parse_display_qapi(const char *optarg)
1846 DisplayOptions *opts;
1849 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1851 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1852 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1854 qapi_free_DisplayOptions(opts);
1858 DisplayOptions *qmp_query_display_options(Error **errp)
1860 return QAPI_CLONE(DisplayOptions, &dpy);
1863 static void parse_display(const char *p)
1867 if (is_help_option(p)) {
1868 qemu_display_help();
1872 if (strstart(p, "sdl", &opts)) {
1874 * sdl DisplayType needs hand-crafted parser instead of
1875 * parse_display_qapi() due to some options not in
1876 * DisplayOptions, specifically:
1878 * Already deprecated.
1879 * - ctrl_grab + alt_grab
1880 * Not clear yet what happens to them long-term. Should
1881 * replaced by something better or deprecated and dropped.
1883 dpy.type = DISPLAY_TYPE_SDL;
1885 const char *nextopt;
1887 if (strstart(opts, ",alt_grab=", &nextopt)) {
1889 if (strstart(opts, "on", &nextopt)) {
1891 } else if (strstart(opts, "off", &nextopt)) {
1894 goto invalid_sdl_args;
1896 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1898 if (strstart(opts, "on", &nextopt)) {
1900 } else if (strstart(opts, "off", &nextopt)) {
1903 goto invalid_sdl_args;
1905 } else if (strstart(opts, ",window_close=", &nextopt)) {
1907 dpy.has_window_close = true;
1908 if (strstart(opts, "on", &nextopt)) {
1909 dpy.window_close = true;
1910 } else if (strstart(opts, "off", &nextopt)) {
1911 dpy.window_close = false;
1913 goto invalid_sdl_args;
1915 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1917 dpy.has_show_cursor = true;
1918 if (strstart(opts, "on", &nextopt)) {
1919 dpy.show_cursor = true;
1920 } else if (strstart(opts, "off", &nextopt)) {
1921 dpy.show_cursor = false;
1923 goto invalid_sdl_args;
1925 } else if (strstart(opts, ",gl=", &nextopt)) {
1928 if (strstart(opts, "on", &nextopt)) {
1929 dpy.gl = DISPLAYGL_MODE_ON;
1930 } else if (strstart(opts, "core", &nextopt)) {
1931 dpy.gl = DISPLAYGL_MODE_CORE;
1932 } else if (strstart(opts, "es", &nextopt)) {
1933 dpy.gl = DISPLAYGL_MODE_ES;
1934 } else if (strstart(opts, "off", &nextopt)) {
1935 dpy.gl = DISPLAYGL_MODE_OFF;
1937 goto invalid_sdl_args;
1941 error_report("invalid SDL option string");
1946 } else if (strstart(p, "vnc", &opts)) {
1948 * vnc isn't a (local) DisplayType but a protocol for remote
1952 vnc_parse(opts + 1, &error_fatal);
1954 error_report("VNC requires a display argument vnc=<display>");
1958 parse_display_qapi(p);
1962 char *qemu_find_file(int type, const char *name)
1968 /* Try the name as a straight path first */
1969 if (access(name, R_OK) == 0) {
1970 trace_load_file(name, name);
1971 return g_strdup(name);
1975 case QEMU_FILE_TYPE_BIOS:
1978 case QEMU_FILE_TYPE_KEYMAP:
1979 subdir = "keymaps/";
1985 for (i = 0; i < data_dir_idx; i++) {
1986 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1987 if (access(buf, R_OK) == 0) {
1988 trace_load_file(name, buf);
1996 static void qemu_add_data_dir(const char *path)
2003 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2006 for (i = 0; i < data_dir_idx; i++) {
2007 if (strcmp(data_dir[i], path) == 0) {
2008 return; /* duplicate */
2011 data_dir[data_dir_idx++] = g_strdup(path);
2014 static inline bool nonempty_str(const char *str)
2019 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2023 const char *name, *file, *str;
2024 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2026 if (fw_cfg == NULL) {
2027 error_setg(errp, "fw_cfg device not available");
2030 name = qemu_opt_get(opts, "name");
2031 file = qemu_opt_get(opts, "file");
2032 str = qemu_opt_get(opts, "string");
2034 /* we need name and either a file or the content string */
2035 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2036 error_setg(errp, "invalid argument(s)");
2039 if (nonempty_str(file) && nonempty_str(str)) {
2040 error_setg(errp, "file and string are mutually exclusive");
2043 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2044 error_setg(errp, "name too long (max. %d char)",
2045 FW_CFG_MAX_FILE_PATH - 1);
2048 if (strncmp(name, "opt/", 4) != 0) {
2049 warn_report("externally provided fw_cfg item names "
2050 "should be prefixed with \"opt/\"");
2052 if (nonempty_str(str)) {
2053 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2054 buf = g_memdup(str, size);
2057 if (!g_file_get_contents(file, &buf, &size, &err)) {
2058 error_setg(errp, "can't load %s: %s", file, err->message);
2063 /* For legacy, keep user files in a specific global order. */
2064 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2065 fw_cfg_add_file(fw_cfg, name, buf, size);
2066 fw_cfg_reset_order_override(fw_cfg);
2070 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2072 return qdev_device_help(opts);
2075 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2079 dev = qdev_device_add(opts, errp);
2080 if (!dev && *errp) {
2081 error_report_err(*errp);
2084 object_unref(OBJECT(dev));
2089 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2091 Error *local_err = NULL;
2093 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2095 error_propagate(errp, local_err);
2103 #ifdef CONFIG_VIRTFS
2104 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2106 return qemu_fsdev_add(opts, errp);
2110 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2112 return monitor_init_opts(opts, errp);
2115 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2117 static int monitor_device_index = 0;
2122 if (strstart(optarg, "chardev:", &p)) {
2123 snprintf(label, sizeof(label), "%s", p);
2125 snprintf(label, sizeof(label), "compat_monitor%d",
2126 monitor_device_index);
2127 opts = qemu_chr_parse_compat(label, optarg, true);
2129 error_report("parse error: %s", optarg);
2134 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2135 qemu_opt_set(opts, "mode", mode, &error_abort);
2136 qemu_opt_set(opts, "chardev", label, &error_abort);
2137 if (!strcmp(mode, "control")) {
2138 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2140 assert(pretty == false);
2142 monitor_device_index++;
2145 struct device_config {
2147 DEV_USB, /* -usbdevice */
2148 DEV_SERIAL, /* -serial */
2149 DEV_PARALLEL, /* -parallel */
2150 DEV_DEBUGCON, /* -debugcon */
2151 DEV_GDB, /* -gdb, -s */
2152 DEV_SCLP, /* s390 sclp */
2154 const char *cmdline;
2156 QTAILQ_ENTRY(device_config) next;
2159 static QTAILQ_HEAD(, device_config) device_configs =
2160 QTAILQ_HEAD_INITIALIZER(device_configs);
2162 static void add_device_config(int type, const char *cmdline)
2164 struct device_config *conf;
2166 conf = g_malloc0(sizeof(*conf));
2168 conf->cmdline = cmdline;
2169 loc_save(&conf->loc);
2170 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2173 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2175 struct device_config *conf;
2178 QTAILQ_FOREACH(conf, &device_configs, next) {
2179 if (conf->type != type)
2181 loc_push_restore(&conf->loc);
2182 rc = func(conf->cmdline);
2183 loc_pop(&conf->loc);
2191 static int serial_parse(const char *devname)
2193 int index = num_serial_hds;
2196 if (strcmp(devname, "none") == 0)
2198 snprintf(label, sizeof(label), "serial%d", index);
2199 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2201 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2202 if (!serial_hds[index]) {
2203 error_report("could not connect serial device"
2204 " to character backend '%s'", devname);
2211 Chardev *serial_hd(int i)
2214 if (i < num_serial_hds) {
2215 return serial_hds[i];
2220 int serial_max_hds(void)
2222 return num_serial_hds;
2225 static int parallel_parse(const char *devname)
2227 static int index = 0;
2230 if (strcmp(devname, "none") == 0)
2232 if (index == MAX_PARALLEL_PORTS) {
2233 error_report("too many parallel ports");
2236 snprintf(label, sizeof(label), "parallel%d", index);
2237 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2238 if (!parallel_hds[index]) {
2239 error_report("could not connect parallel device"
2240 " to character backend '%s'", devname);
2247 static int debugcon_parse(const char *devname)
2251 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2252 error_report("invalid character backend '%s'", devname);
2255 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2257 error_report("already have a debugcon device");
2260 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2261 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2265 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2267 const MachineClass *mc1 = a, *mc2 = b;
2270 if (mc1->family == NULL) {
2271 if (mc2->family == NULL) {
2272 /* Compare standalone machine types against each other; they sort
2273 * in increasing order.
2275 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2276 object_class_get_name(OBJECT_CLASS(mc2)));
2279 /* Standalone machine types sort after families. */
2283 if (mc2->family == NULL) {
2284 /* Families sort before standalone machine types. */
2288 /* Families sort between each other alphabetically increasingly. */
2289 res = strcmp(mc1->family, mc2->family);
2294 /* Within the same family, machine types sort in decreasing order. */
2295 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2296 object_class_get_name(OBJECT_CLASS(mc1)));
2299 static MachineClass *machine_parse(const char *name, GSList *machines)
2304 if (is_help_option(name)) {
2305 printf("Supported machines are:\n");
2306 machines = g_slist_sort(machines, machine_class_cmp);
2307 for (el = machines; el; el = el->next) {
2308 MachineClass *mc = el->data;
2310 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2312 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2313 mc->is_default ? " (default)" : "",
2314 mc->deprecation_reason ? " (deprecated)" : "");
2319 mc = find_machine(name, machines);
2321 error_report("unsupported machine type");
2322 error_printf("Use -machine help to list supported machines\n");
2328 void qemu_add_exit_notifier(Notifier *notify)
2330 notifier_list_add(&exit_notifiers, notify);
2333 void qemu_remove_exit_notifier(Notifier *notify)
2335 notifier_remove(notify);
2338 static void qemu_run_exit_notifiers(void)
2340 notifier_list_notify(&exit_notifiers, NULL);
2343 static const char *pid_file;
2344 static Notifier qemu_unlink_pidfile_notifier;
2346 static void qemu_unlink_pidfile(Notifier *n, void *data)
2353 bool machine_init_done;
2355 void qemu_add_machine_init_done_notifier(Notifier *notify)
2357 notifier_list_add(&machine_init_done_notifiers, notify);
2358 if (machine_init_done) {
2359 notify->notify(notify, NULL);
2363 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2365 notifier_remove(notify);
2368 static void qemu_run_machine_init_done_notifiers(void)
2370 machine_init_done = true;
2371 notifier_list_notify(&machine_init_done_notifiers, NULL);
2374 static const QEMUOption *lookup_opt(int argc, char **argv,
2375 const char **poptarg, int *poptind)
2377 const QEMUOption *popt;
2378 int optind = *poptind;
2379 char *r = argv[optind];
2382 loc_set_cmdline(argv, optind, 1);
2384 /* Treat --foo the same as -foo. */
2387 popt = qemu_options;
2390 error_report("invalid option");
2393 if (!strcmp(popt->name, r + 1))
2397 if (popt->flags & HAS_ARG) {
2398 if (optind >= argc) {
2399 error_report("requires an argument");
2402 optarg = argv[optind++];
2403 loc_set_cmdline(argv, optind - 2, 2);
2414 static MachineClass *select_machine(void)
2416 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2417 MachineClass *machine_class = find_default_machine(machines);
2422 loc_push_none(&loc);
2424 opts = qemu_get_machine_opts();
2425 qemu_opts_loc_restore(opts);
2427 optarg = qemu_opt_get(opts, "type");
2429 machine_class = machine_parse(optarg, machines);
2432 if (!machine_class) {
2433 error_report("No machine specified, and there is no default");
2434 error_printf("Use -machine help to list supported machines\n");
2439 g_slist_free(machines);
2440 return machine_class;
2443 static int object_parse_property_opt(Object *obj,
2444 const char *name, const char *value,
2445 const char *skip, Error **errp)
2447 Error *local_err = NULL;
2449 if (g_str_equal(name, skip)) {
2453 object_property_parse(obj, value, name, &local_err);
2456 error_propagate(errp, local_err);
2463 static int machine_set_property(void *opaque,
2464 const char *name, const char *value,
2467 g_autofree char *qom_name = g_strdup(name);
2470 for (p = qom_name; *p; p++) {
2476 /* Legacy options do not correspond to MachineState properties. */
2477 if (g_str_equal(qom_name, "accel")) {
2480 if (g_str_equal(qom_name, "igd-passthru")) {
2481 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2484 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2485 g_str_equal(qom_name, "kernel-irqchip")) {
2486 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2490 return object_parse_property_opt(opaque, name, value, "type", errp);
2494 * Initial object creation happens before all other
2495 * QEMU data types are created. The majority of objects
2496 * can be created at this point. The rng-egd object
2497 * cannot be created here, as it depends on the chardev
2500 static bool object_create_initial(const char *type, QemuOpts *opts)
2502 if (user_creatable_print_help(type, opts)) {
2507 * Objects should not be made "delayed" without a reason. If you
2508 * add one, state the reason in a comment!
2511 /* Reason: rng-egd property "chardev" */
2512 if (g_str_equal(type, "rng-egd")) {
2516 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2517 /* Reason: cryptodev-vhost-user property "chardev" */
2518 if (g_str_equal(type, "cryptodev-vhost-user")) {
2524 * Reason: filter-* property "netdev" etc.
2526 if (g_str_equal(type, "filter-buffer") ||
2527 g_str_equal(type, "filter-dump") ||
2528 g_str_equal(type, "filter-mirror") ||
2529 g_str_equal(type, "filter-redirector") ||
2530 g_str_equal(type, "colo-compare") ||
2531 g_str_equal(type, "filter-rewriter") ||
2532 g_str_equal(type, "filter-replay")) {
2536 /* Memory allocation by backends needs to be done
2537 * after configure_accelerator() (due to the tcg_enabled()
2538 * checks at memory_region_init_*()).
2540 * Also, allocation of large amounts of memory may delay
2541 * chardev initialization for too long, and trigger timeouts
2542 * on software that waits for a monitor socket to be created
2545 if (g_str_has_prefix(type, "memory-backend-")) {
2554 * The remainder of object creation happens after the
2555 * creation of chardev, fsdev, net clients and device data types.
2557 static bool object_create_delayed(const char *type, QemuOpts *opts)
2559 return !object_create_initial(type, opts);
2563 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2567 const char *mem_str;
2568 const ram_addr_t default_ram_size = mc->default_ram_size;
2569 QemuOpts *opts = qemu_find_opts_singleton("memory");
2572 loc_push_none(&loc);
2573 qemu_opts_loc_restore(opts);
2576 mem_str = qemu_opt_get(opts, "size");
2579 error_report("missing 'size' option value");
2583 sz = qemu_opt_get_size(opts, "size", ram_size);
2585 /* Fix up legacy suffix-less format */
2586 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2587 uint64_t overflow_check = sz;
2590 if (sz / MiB != overflow_check) {
2591 error_report("too large 'size' option value");
2597 /* backward compatibility behaviour for case "-m 0" */
2599 sz = default_ram_size;
2602 sz = QEMU_ALIGN_UP(sz, 8192);
2604 if (ram_size != sz) {
2605 error_report("ram size too large");
2609 /* store value for the future use */
2610 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2611 *maxram_size = ram_size;
2613 if (qemu_opt_get(opts, "maxmem")) {
2616 sz = qemu_opt_get_size(opts, "maxmem", 0);
2617 slots = qemu_opt_get_number(opts, "slots", 0);
2618 if (sz < ram_size) {
2619 error_report("invalid value of -m option maxmem: "
2620 "maximum memory size (0x%" PRIx64 ") must be at least "
2621 "the initial memory size (0x" RAM_ADDR_FMT ")",
2624 } else if (slots && sz == ram_size) {
2625 error_report("invalid value of -m option maxmem: "
2626 "memory slots were specified but maximum memory size "
2627 "(0x%" PRIx64 ") is equal to the initial memory size "
2628 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2634 } else if (qemu_opt_get(opts, "slots")) {
2635 error_report("invalid -m option value: missing 'maxmem' option");
2643 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2647 g = g_malloc0(sizeof(*g));
2648 g->driver = qemu_opt_get(opts, "driver");
2649 g->property = qemu_opt_get(opts, "property");
2650 g->value = qemu_opt_get(opts, "value");
2651 qdev_prop_register_global(g);
2655 static int qemu_read_default_config_file(void)
2659 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2660 if (ret < 0 && ret != -ENOENT) {
2667 static void user_register_global_props(void)
2669 qemu_opts_foreach(qemu_find_opts("global"),
2670 global_init_func, NULL, NULL);
2673 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2675 configure_icount(opts, errp);
2679 static int accelerator_set_property(void *opaque,
2680 const char *name, const char *value,
2683 return object_parse_property_opt(opaque, name, value, "accel", errp);
2686 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2688 bool *p_init_failed = opaque;
2689 const char *acc = qemu_opt_get(opts, "accel");
2690 AccelClass *ac = accel_find(acc);
2695 *p_init_failed = true;
2696 error_report("invalid accelerator %s", acc);
2699 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2700 object_apply_compat_props(OBJECT(accel));
2701 qemu_opt_foreach(opts, accelerator_set_property,
2705 ret = accel_init_machine(accel, current_machine);
2707 *p_init_failed = true;
2708 error_report("failed to initialize %s: %s",
2709 acc, strerror(-ret));
2716 static void configure_accelerators(const char *progname)
2719 bool init_failed = false;
2721 qemu_opts_foreach(qemu_find_opts("icount"),
2722 do_configure_icount, NULL, &error_fatal);
2724 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2725 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2726 char **accel_list, **tmp;
2728 if (accel == NULL) {
2729 /* Select the default accelerator */
2730 bool have_tcg = accel_find("tcg");
2731 bool have_kvm = accel_find("kvm");
2733 if (have_tcg && have_kvm) {
2734 if (g_str_has_suffix(progname, "kvm")) {
2735 /* If the program name ends with "kvm", we prefer KVM */
2740 } else if (have_kvm) {
2742 } else if (have_tcg) {
2745 error_report("No accelerator selected and"
2746 " no default accelerator available");
2750 accel_list = g_strsplit(accel, ":", 0);
2752 for (tmp = accel_list; *tmp; tmp++) {
2754 * Filter invalid accelerators here, to prevent obscenities
2755 * such as "-machine accel=tcg,,thread=single".
2757 if (accel_find(*tmp)) {
2758 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2761 error_report("invalid accelerator %s", *tmp);
2764 g_strfreev(accel_list);
2766 if (accel != NULL) {
2767 error_report("The -accel and \"-machine accel=\" options are incompatible");
2772 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2773 do_configure_accelerator, &init_failed, &error_fatal)) {
2775 error_report("no accelerator found");
2781 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2782 error_report("falling back to %s", ac->name);
2785 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2786 error_report("-icount is not allowed with hardware virtualization");
2791 static void create_default_memdev(MachineState *ms, const char *path)
2794 MachineClass *mc = MACHINE_GET_CLASS(ms);
2796 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2798 object_property_set_str(obj, path, "mem-path", &error_fatal);
2800 object_property_set_int(obj, ms->ram_size, "size", &error_fatal);
2801 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2803 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2805 object_property_set_str(OBJECT(ms), mc->default_ram_id, "memory-backend",
2809 void qemu_init(int argc, char **argv, char **envp)
2812 int snapshot, linux_boot;
2813 const char *initrd_filename;
2814 const char *kernel_filename, *kernel_cmdline;
2815 const char *boot_order = NULL;
2816 const char *boot_once = NULL;
2818 QemuOpts *opts, *machine_opts;
2819 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2820 QemuOptsList *olist;
2823 const char *loadvm = NULL;
2824 MachineClass *machine_class;
2825 const char *cpu_option;
2826 const char *vga_model = NULL;
2827 const char *qtest_chrdev = NULL;
2828 const char *qtest_log = NULL;
2829 const char *incoming = NULL;
2830 bool userconfig = true;
2831 bool nographic = false;
2832 int display_remote = 0;
2833 const char *log_mask = NULL;
2834 const char *log_file = NULL;
2835 char *trace_file = NULL;
2836 ram_addr_t maxram_size;
2837 uint64_t ram_slots = 0;
2838 FILE *vmstate_dump_file = NULL;
2839 Error *main_loop_err = NULL;
2841 bool list_data_dirs = false;
2843 const char *mem_path = NULL;
2844 bool have_custom_ram_size;
2845 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2846 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2847 int mem_prealloc = 0; /* force preallocation of physical target memory */
2849 os_set_line_buffering();
2851 error_init(argv[0]);
2852 module_call_init(MODULE_INIT_TRACE);
2854 qemu_init_cpu_list();
2855 qemu_init_cpu_loop();
2857 qemu_mutex_lock_iothread();
2859 atexit(qemu_run_exit_notifiers);
2860 qemu_init_exec_dir(argv[0]);
2862 module_call_init(MODULE_INIT_QOM);
2863 module_call_init(MODULE_INIT_MIGRATION);
2865 qemu_add_opts(&qemu_drive_opts);
2866 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2867 qemu_add_drive_opts(&qemu_common_drive_opts);
2868 qemu_add_drive_opts(&qemu_drive_opts);
2869 qemu_add_drive_opts(&bdrv_runtime_opts);
2870 qemu_add_opts(&qemu_chardev_opts);
2871 qemu_add_opts(&qemu_device_opts);
2872 qemu_add_opts(&qemu_netdev_opts);
2873 qemu_add_opts(&qemu_nic_opts);
2874 qemu_add_opts(&qemu_net_opts);
2875 qemu_add_opts(&qemu_rtc_opts);
2876 qemu_add_opts(&qemu_global_opts);
2877 qemu_add_opts(&qemu_mon_opts);
2878 qemu_add_opts(&qemu_trace_opts);
2879 qemu_plugin_add_opts();
2880 qemu_add_opts(&qemu_option_rom_opts);
2881 qemu_add_opts(&qemu_machine_opts);
2882 qemu_add_opts(&qemu_accel_opts);
2883 qemu_add_opts(&qemu_mem_opts);
2884 qemu_add_opts(&qemu_smp_opts);
2885 qemu_add_opts(&qemu_boot_opts);
2886 qemu_add_opts(&qemu_add_fd_opts);
2887 qemu_add_opts(&qemu_object_opts);
2888 qemu_add_opts(&qemu_tpmdev_opts);
2889 qemu_add_opts(&qemu_realtime_opts);
2890 qemu_add_opts(&qemu_overcommit_opts);
2891 qemu_add_opts(&qemu_msg_opts);
2892 qemu_add_opts(&qemu_name_opts);
2893 qemu_add_opts(&qemu_numa_opts);
2894 qemu_add_opts(&qemu_icount_opts);
2895 qemu_add_opts(&qemu_semihosting_config_opts);
2896 qemu_add_opts(&qemu_fw_cfg_opts);
2897 module_call_init(MODULE_INIT_OPTS);
2900 precopy_infrastructure_init();
2901 postcopy_infrastructure_init();
2902 monitor_init_globals();
2904 if (qcrypto_init(&err) < 0) {
2905 error_reportf_err(err, "cannot initialize crypto: ");
2909 QTAILQ_INIT(&vm_change_state_head);
2910 os_setup_early_signal_handling();
2917 bdrv_init_with_whitelist();
2921 /* first pass of option parsing */
2923 while (optind < argc) {
2924 if (argv[optind][0] != '-') {
2928 const QEMUOption *popt;
2930 popt = lookup_opt(argc, argv, &optarg, &optind);
2931 switch (popt->index) {
2932 case QEMU_OPTION_nouserconfig:
2940 if (qemu_read_default_config_file() < 0) {
2945 /* second pass of option parsing */
2950 if (argv[optind][0] != '-') {
2951 loc_set_cmdline(argv, optind, 1);
2952 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2954 const QEMUOption *popt;
2956 popt = lookup_opt(argc, argv, &optarg, &optind);
2957 if (!(popt->arch_mask & arch_type)) {
2958 error_report("Option not supported for this target");
2961 switch(popt->index) {
2962 case QEMU_OPTION_cpu:
2963 /* hw initialization will check this */
2964 cpu_option = optarg;
2966 case QEMU_OPTION_hda:
2967 case QEMU_OPTION_hdb:
2968 case QEMU_OPTION_hdc:
2969 case QEMU_OPTION_hdd:
2970 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2973 case QEMU_OPTION_blockdev:
2976 BlockdevOptionsQueueEntry *bdo;
2978 v = qobject_input_visitor_new_str(optarg, "driver",
2981 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2982 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2985 loc_save(&bdo->loc);
2986 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2989 case QEMU_OPTION_drive:
2990 if (drive_def(optarg) == NULL) {
2994 case QEMU_OPTION_set:
2995 if (qemu_set_option(optarg) != 0)
2998 case QEMU_OPTION_global:
2999 if (qemu_global_option(optarg) != 0)
3002 case QEMU_OPTION_mtdblock:
3003 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3005 case QEMU_OPTION_sd:
3006 drive_add(IF_SD, -1, optarg, SD_OPTS);
3008 case QEMU_OPTION_pflash:
3009 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3011 case QEMU_OPTION_snapshot:
3013 Error *blocker = NULL;
3015 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3017 replay_add_blocker(blocker);
3020 case QEMU_OPTION_numa:
3021 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3027 case QEMU_OPTION_display:
3028 parse_display(optarg);
3030 case QEMU_OPTION_nographic:
3031 olist = qemu_find_opts("machine");
3032 qemu_opts_parse_noisily(olist, "graphics=off", false);
3034 dpy.type = DISPLAY_TYPE_NONE;
3036 case QEMU_OPTION_curses:
3037 #ifdef CONFIG_CURSES
3038 dpy.type = DISPLAY_TYPE_CURSES;
3040 error_report("curses or iconv support is disabled");
3044 case QEMU_OPTION_portrait:
3045 graphic_rotate = 90;
3047 case QEMU_OPTION_rotate:
3048 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3049 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3050 graphic_rotate != 180 && graphic_rotate != 270) {
3051 error_report("only 90, 180, 270 deg rotation is available");
3055 case QEMU_OPTION_kernel:
3056 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3059 case QEMU_OPTION_initrd:
3060 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3063 case QEMU_OPTION_append:
3064 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3067 case QEMU_OPTION_dtb:
3068 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3071 case QEMU_OPTION_cdrom:
3072 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3074 case QEMU_OPTION_boot:
3075 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3081 case QEMU_OPTION_fda:
3082 case QEMU_OPTION_fdb:
3083 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3086 case QEMU_OPTION_no_fd_bootchk:
3089 case QEMU_OPTION_netdev:
3091 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3095 case QEMU_OPTION_nic:
3097 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3101 case QEMU_OPTION_net:
3103 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3107 #ifdef CONFIG_LIBISCSI
3108 case QEMU_OPTION_iscsi:
3109 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3116 case QEMU_OPTION_audio_help:
3117 audio_legacy_help();
3120 case QEMU_OPTION_audiodev:
3121 audio_parse_option(optarg);
3123 case QEMU_OPTION_soundhw:
3124 select_soundhw (optarg);
3129 case QEMU_OPTION_version:
3134 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3141 case QEMU_OPTION_tpmdev:
3142 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3147 case QEMU_OPTION_mempath:
3150 case QEMU_OPTION_mem_prealloc:
3159 case QEMU_OPTION_DFILTER:
3160 qemu_set_dfilter_ranges(optarg, &error_fatal);
3162 case QEMU_OPTION_seed:
3163 qemu_guest_random_seed_main(optarg, &error_fatal);
3166 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3168 case QEMU_OPTION_gdb:
3169 add_device_config(DEV_GDB, optarg);
3172 if (is_help_option(optarg)) {
3173 list_data_dirs = true;
3175 qemu_add_data_dir(optarg);
3178 case QEMU_OPTION_bios:
3179 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3182 case QEMU_OPTION_singlestep:
3189 keyboard_layout = optarg;
3191 case QEMU_OPTION_vga:
3200 w = strtol(p, (char **)&p, 10);
3203 error_report("invalid resolution or depth");
3209 h = strtol(p, (char **)&p, 10);
3214 depth = strtol(p, (char **)&p, 10);
3215 if (depth != 1 && depth != 2 && depth != 4 &&
3216 depth != 8 && depth != 15 && depth != 16 &&
3217 depth != 24 && depth != 32)
3219 } else if (*p == '\0') {
3220 depth = graphic_depth;
3227 graphic_depth = depth;
3230 case QEMU_OPTION_echr:
3233 term_escape_char = strtol(optarg, &r, 0);
3235 printf("Bad argument to echr\n");
3238 case QEMU_OPTION_monitor:
3239 default_monitor = 0;
3240 if (strncmp(optarg, "none", 4)) {
3241 monitor_parse(optarg, "readline", false);
3244 case QEMU_OPTION_qmp:
3245 monitor_parse(optarg, "control", false);
3246 default_monitor = 0;
3248 case QEMU_OPTION_qmp_pretty:
3249 monitor_parse(optarg, "control", true);
3250 default_monitor = 0;
3252 case QEMU_OPTION_mon:
3253 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3258 default_monitor = 0;
3260 case QEMU_OPTION_chardev:
3261 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3267 case QEMU_OPTION_fsdev:
3268 olist = qemu_find_opts("fsdev");
3270 error_report("fsdev support is disabled");
3273 opts = qemu_opts_parse_noisily(olist, optarg, true);
3278 case QEMU_OPTION_virtfs: {
3281 const char *writeout, *sock_fd, *socket, *path, *security_model,
3284 olist = qemu_find_opts("virtfs");
3286 error_report("virtfs support is disabled");
3289 opts = qemu_opts_parse_noisily(olist, optarg, true);
3294 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3295 qemu_opt_get(opts, "mount_tag") == NULL) {
3296 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3299 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3300 qemu_opts_id(opts) ?:
3301 qemu_opt_get(opts, "mount_tag"),
3304 error_report("duplicate or invalid fsdev id: %s",
3305 qemu_opt_get(opts, "mount_tag"));
3309 writeout = qemu_opt_get(opts, "writeout");
3311 #ifdef CONFIG_SYNC_FILE_RANGE
3312 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3314 error_report("writeout=immediate not supported "
3315 "on this platform");
3319 qemu_opt_set(fsdev, "fsdriver",
3320 qemu_opt_get(opts, "fsdriver"), &error_abort);
3321 path = qemu_opt_get(opts, "path");
3323 qemu_opt_set(fsdev, "path", path, &error_abort);
3325 security_model = qemu_opt_get(opts, "security_model");
3326 if (security_model) {
3327 qemu_opt_set(fsdev, "security_model", security_model,
3330 socket = qemu_opt_get(opts, "socket");
3332 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3334 sock_fd = qemu_opt_get(opts, "sock_fd");
3336 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3339 qemu_opt_set_bool(fsdev, "readonly",
3340 qemu_opt_get_bool(opts, "readonly", 0),
3342 multidevs = qemu_opt_get(opts, "multidevs");
3344 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3346 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3348 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3349 qemu_opt_set(device, "fsdev",
3350 qemu_opts_id(fsdev), &error_abort);
3351 qemu_opt_set(device, "mount_tag",
3352 qemu_opt_get(opts, "mount_tag"), &error_abort);
3355 case QEMU_OPTION_serial:
3356 add_device_config(DEV_SERIAL, optarg);
3358 if (strncmp(optarg, "mon:", 4) == 0) {
3359 default_monitor = 0;
3362 case QEMU_OPTION_watchdog:
3364 error_report("only one watchdog option may be given");
3369 case QEMU_OPTION_watchdog_action:
3370 if (select_watchdog_action(optarg) == -1) {
3371 error_report("unknown -watchdog-action parameter");
3375 case QEMU_OPTION_parallel:
3376 add_device_config(DEV_PARALLEL, optarg);
3377 default_parallel = 0;
3378 if (strncmp(optarg, "mon:", 4) == 0) {
3379 default_monitor = 0;
3382 case QEMU_OPTION_debugcon:
3383 add_device_config(DEV_DEBUGCON, optarg);
3385 case QEMU_OPTION_loadvm:
3388 case QEMU_OPTION_full_screen:
3389 dpy.has_full_screen = true;
3390 dpy.full_screen = true;
3392 case QEMU_OPTION_alt_grab:
3395 case QEMU_OPTION_ctrl_grab:
3398 case QEMU_OPTION_no_quit:
3399 dpy.has_window_close = true;
3400 dpy.window_close = false;
3402 case QEMU_OPTION_sdl:
3404 dpy.type = DISPLAY_TYPE_SDL;
3407 error_report("SDL support is disabled");
3410 case QEMU_OPTION_pidfile:
3413 case QEMU_OPTION_win2k_hack:
3414 win2k_install_hack = 1;
3416 case QEMU_OPTION_acpitable:
3417 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3422 acpi_table_add(opts, &error_fatal);
3424 case QEMU_OPTION_smbios:
3425 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3430 smbios_entry_add(opts, &error_fatal);
3432 case QEMU_OPTION_fwcfg:
3433 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3439 case QEMU_OPTION_preconfig:
3440 preconfig_exit_requested = false;
3442 case QEMU_OPTION_enable_kvm:
3443 olist = qemu_find_opts("machine");
3444 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3447 case QEMU_OPTION_machine:
3448 olist = qemu_find_opts("machine");
3449 opts = qemu_opts_parse_noisily(olist, optarg, true);
3454 case QEMU_OPTION_no_kvm:
3455 olist = qemu_find_opts("machine");
3456 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3458 case QEMU_OPTION_accel:
3459 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3461 optarg = qemu_opt_get(accel_opts, "accel");
3462 if (!optarg || is_help_option(optarg)) {
3463 printf("Accelerators supported in QEMU binary:\n");
3464 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3466 for (el = accel_list; el; el = el->next) {
3467 gchar *typename = g_strdup(object_class_get_name(
3468 OBJECT_CLASS(el->data)));
3469 /* omit qtest which is used for tests only */
3470 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3471 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3472 gchar **optname = g_strsplit(typename,
3473 ACCEL_CLASS_SUFFIX, 0);
3474 printf("%s\n", optname[0]);
3475 g_strfreev(optname);
3479 g_slist_free(accel_list);
3482 if (optarg && strchr(optarg, ':')) {
3483 error_report("Don't use ':' with -accel, "
3484 "use -M accel=... for now instead");
3488 case QEMU_OPTION_usb:
3489 olist = qemu_find_opts("machine");
3490 qemu_opts_parse_noisily(olist, "usb=on", false);
3492 case QEMU_OPTION_usbdevice:
3493 error_report("'-usbdevice' is deprecated, please use "
3494 "'-device usb-...' instead");
3495 olist = qemu_find_opts("machine");
3496 qemu_opts_parse_noisily(olist, "usb=on", false);
3497 add_device_config(DEV_USB, optarg);
3499 case QEMU_OPTION_device:
3500 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3505 case QEMU_OPTION_smp:
3506 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3511 case QEMU_OPTION_vnc:
3512 vnc_parse(optarg, &error_fatal);
3514 case QEMU_OPTION_no_acpi:
3517 case QEMU_OPTION_no_hpet:
3520 case QEMU_OPTION_no_reboot:
3523 case QEMU_OPTION_no_shutdown:
3526 case QEMU_OPTION_show_cursor:
3527 warn_report("The -show-cursor option is deprecated, "
3528 "use -display {sdl,gtk},show-cursor=on instead");
3529 dpy.has_show_cursor = true;
3530 dpy.show_cursor = true;
3532 case QEMU_OPTION_uuid:
3533 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3534 error_report("failed to parse UUID string: wrong format");
3537 qemu_uuid_set = true;
3539 case QEMU_OPTION_option_rom:
3540 if (nb_option_roms >= MAX_OPTION_ROMS) {
3541 error_report("too many option ROMs");
3544 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3549 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3550 option_rom[nb_option_roms].bootindex =
3551 qemu_opt_get_number(opts, "bootindex", -1);
3552 if (!option_rom[nb_option_roms].name) {
3553 error_report("Option ROM file is not specified");
3558 case QEMU_OPTION_semihosting:
3559 qemu_semihosting_enable();
3561 case QEMU_OPTION_semihosting_config:
3562 if (qemu_semihosting_config_options(optarg) != 0) {
3566 case QEMU_OPTION_name:
3567 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3573 case QEMU_OPTION_prom_env:
3574 if (nb_prom_envs >= MAX_PROM_ENVS) {
3575 error_report("too many prom variables");
3578 prom_envs[nb_prom_envs] = optarg;
3581 case QEMU_OPTION_old_param:
3584 case QEMU_OPTION_rtc:
3585 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3591 case QEMU_OPTION_tb_size:
3593 error_report("TCG is disabled");
3596 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3597 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3599 case QEMU_OPTION_icount:
3600 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3606 case QEMU_OPTION_incoming:
3608 runstate_set(RUN_STATE_INMIGRATE);
3612 case QEMU_OPTION_only_migratable:
3613 only_migratable = 1;
3615 case QEMU_OPTION_nodefaults:
3618 case QEMU_OPTION_xen_domid:
3619 if (!(xen_available())) {
3620 error_report("Option not supported for this target");
3623 xen_domid = atoi(optarg);
3625 case QEMU_OPTION_xen_attach:
3626 if (!(xen_available())) {
3627 error_report("Option not supported for this target");
3630 xen_mode = XEN_ATTACH;
3632 case QEMU_OPTION_xen_domid_restrict:
3633 if (!(xen_available())) {
3634 error_report("Option not supported for this target");
3637 xen_domid_restrict = true;
3639 case QEMU_OPTION_trace:
3641 trace_file = trace_opt_parse(optarg);
3643 case QEMU_OPTION_plugin:
3644 qemu_plugin_opt_parse(optarg, &plugin_list);
3646 case QEMU_OPTION_readconfig:
3648 int ret = qemu_read_config_file(optarg);
3650 error_report("read config %s: %s", optarg,
3656 case QEMU_OPTION_spice:
3657 olist = qemu_find_opts("spice");
3659 error_report("spice support is disabled");
3662 opts = qemu_opts_parse_noisily(olist, optarg, false);
3668 case QEMU_OPTION_writeconfig:
3671 if (strcmp(optarg, "-") == 0) {
3674 fp = fopen(optarg, "w");
3676 error_report("open %s: %s", optarg,
3681 qemu_config_write(fp);
3687 case QEMU_OPTION_qtest:
3688 qtest_chrdev = optarg;
3690 case QEMU_OPTION_qtest_log:
3693 case QEMU_OPTION_sandbox:
3694 olist = qemu_find_opts("sandbox");
3696 #ifndef CONFIG_SECCOMP
3697 error_report("-sandbox support is not enabled "
3698 "in this QEMU binary");
3703 opts = qemu_opts_parse_noisily(olist, optarg, true);
3708 case QEMU_OPTION_add_fd:
3710 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3716 error_report("File descriptor passing is disabled on this "
3721 case QEMU_OPTION_object:
3722 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3728 case QEMU_OPTION_realtime:
3729 warn_report("'-realtime mlock=...' is deprecated, please use "
3730 "'-overcommit mem-lock=...' instead");
3731 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3736 /* Don't override the -overcommit option if set */
3737 enable_mlock = enable_mlock ||
3738 qemu_opt_get_bool(opts, "mlock", true);
3740 case QEMU_OPTION_overcommit:
3741 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3746 /* Don't override the -realtime option if set */
3747 enable_mlock = enable_mlock ||
3748 qemu_opt_get_bool(opts, "mem-lock", false);
3749 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3751 case QEMU_OPTION_msg:
3752 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3757 configure_msg(opts);
3759 case QEMU_OPTION_dump_vmstate:
3760 if (vmstate_dump_file) {
3761 error_report("only one '-dump-vmstate' "
3762 "option may be given");
3765 vmstate_dump_file = fopen(optarg, "w");
3766 if (vmstate_dump_file == NULL) {
3767 error_report("open %s: %s", optarg, strerror(errno));
3771 case QEMU_OPTION_enable_sync_profile:
3774 case QEMU_OPTION_nouserconfig:
3775 /* Nothing to be parsed here. Especially, do not error out below. */
3778 if (os_parse_cmd_args(popt->index, optarg)) {
3779 error_report("Option not supported in this build");
3786 * Clear error location left behind by the loop.
3787 * Best done right after the loop. Do not insert code here!
3791 user_register_global_props();
3793 replay_configure(icount_opts);
3795 if (incoming && !preconfig_exit_requested) {
3796 error_report("'preconfig' and 'incoming' options are "
3797 "mutually exclusive");
3801 configure_rtc(qemu_find_opts_singleton("rtc"));
3803 machine_class = select_machine();
3804 object_set_machine_compat_props(machine_class->compat_props);
3806 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3812 * If QTest is enabled, keep the rcu_atfork enabled, since system processes
3813 * may be forked testing purposes (e.g. fork-server based fuzzing) The fork
3814 * should happen before a signle cpu instruction is executed, to prevent
3815 * deadlocks. See commit 73c6e40, rcu: "completely disable pthread_atfork
3816 * callbacks as soon as possible"
3818 if (!qtest_enabled()) {
3819 rcu_disable_atfork();
3822 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3823 error_reportf_err(err, "cannot create PID file: ");
3827 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3828 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3830 if (qemu_init_main_loop(&main_loop_err)) {
3831 error_report_err(main_loop_err);
3835 #ifdef CONFIG_SECCOMP
3836 olist = qemu_find_opts_err("sandbox", NULL);
3838 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3842 qemu_opts_foreach(qemu_find_opts("name"),
3843 parse_name, NULL, &error_fatal);
3846 qemu_opts_foreach(qemu_find_opts("add-fd"),
3847 parse_add_fd, NULL, &error_fatal);
3849 qemu_opts_foreach(qemu_find_opts("add-fd"),
3850 cleanup_add_fd, NULL, &error_fatal);
3853 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3854 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3857 object_property_add_child(object_get_root(), "machine",
3858 OBJECT(current_machine), &error_abort);
3859 object_property_add_child(container_get(OBJECT(current_machine),
3861 "sysbus", OBJECT(sysbus_get_default()),
3864 if (machine_class->minimum_page_bits) {
3865 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3866 /* This would be a board error: specifying a minimum smaller than
3867 * a target's compile-time fixed setting.
3869 g_assert_not_reached();
3873 cpu_exec_init_all();
3875 if (machine_class->hw_version) {
3876 qemu_set_hw_version(machine_class->hw_version);
3879 if (cpu_option && is_help_option(cpu_option)) {
3880 list_cpus(cpu_option);
3884 if (!trace_init_backends()) {
3887 trace_init_file(trace_file);
3889 /* Open the logfile at this point and set the log mask if necessary.
3891 qemu_set_log_filename(log_file, &error_fatal);
3894 mask = qemu_str_to_log_mask(log_mask);
3896 qemu_print_log_usage(stdout);
3904 /* add configured firmware directories */
3905 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3906 for (i = 0; dirs[i] != NULL; i++) {
3907 qemu_add_data_dir(dirs[i]);
3911 /* try to find datadir relative to the executable path */
3912 dir = os_find_datadir();
3913 qemu_add_data_dir(dir);
3916 /* add the datadir specified when building */
3917 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3919 /* -L help lists the data directories and exits. */
3920 if (list_data_dirs) {
3921 for (i = 0; i < data_dir_idx; i++) {
3922 printf("%s\n", data_dir[i]);
3927 /* machine_class: default to UP */
3928 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3929 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3930 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3932 /* default to machine_class->default_cpus */
3933 current_machine->smp.cpus = machine_class->default_cpus;
3934 current_machine->smp.max_cpus = machine_class->default_cpus;
3935 current_machine->smp.cores = 1;
3936 current_machine->smp.threads = 1;
3938 machine_class->smp_parse(current_machine,
3939 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3941 /* sanity-check smp_cpus and max_cpus against machine_class */
3942 if (current_machine->smp.cpus < machine_class->min_cpus) {
3943 error_report("Invalid SMP CPUs %d. The min CPUs "
3944 "supported by machine '%s' is %d",
3945 current_machine->smp.cpus,
3946 machine_class->name, machine_class->min_cpus);
3949 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3950 error_report("Invalid SMP CPUs %d. The max CPUs "
3951 "supported by machine '%s' is %d",
3952 current_machine->smp.max_cpus,
3953 machine_class->name, machine_class->max_cpus);
3960 val = g_strdup_printf("%d", current_machine->smp.cpus);
3961 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
3963 object_register_sugar_prop("memory-backend", "prealloc", "on");
3967 * Get the default machine options from the machine if it is not already
3968 * specified either by the configuration file or by the command line.
3970 if (machine_class->default_machine_opts) {
3971 qemu_opts_set_defaults(qemu_find_opts("machine"),
3972 machine_class->default_machine_opts, 0);
3975 /* process plugin before CPUs are created, but once -smp has been parsed */
3976 if (qemu_plugin_load_list(&plugin_list)) {
3980 qemu_opts_foreach(qemu_find_opts("device"),
3981 default_driver_check, NULL, NULL);
3982 qemu_opts_foreach(qemu_find_opts("global"),
3983 default_driver_check, NULL, NULL);
3985 if (!vga_model && !default_vga) {
3986 vga_interface_type = VGA_DEVICE;
3988 if (!has_defaults || machine_class->no_serial) {
3991 if (!has_defaults || machine_class->no_parallel) {
3992 default_parallel = 0;
3994 if (!has_defaults || machine_class->no_floppy) {
3997 if (!has_defaults || machine_class->no_cdrom) {
4000 if (!has_defaults || machine_class->no_sdcard) {
4003 if (!has_defaults) {
4004 default_monitor = 0;
4009 if (is_daemonized()) {
4010 if (!preconfig_exit_requested) {
4011 error_report("'preconfig' and 'daemonize' options are "
4012 "mutually exclusive");
4016 /* According to documentation and historically, -nographic redirects
4017 * serial port, parallel port and monitor to stdio, which does not work
4018 * with -daemonize. We can redirect these to null instead, but since
4019 * -nographic is legacy, let's just error out.
4020 * We disallow -nographic only if all other ports are not redirected
4021 * explicitly, to not break existing legacy setups which uses
4022 * -nographic _and_ redirects all ports explicitly - this is valid
4023 * usage, -nographic is just a no-op in this case.
4026 && (default_parallel || default_serial || default_monitor)) {
4027 error_report("-nographic cannot be used with -daemonize");
4030 #ifdef CONFIG_CURSES
4031 if (dpy.type == DISPLAY_TYPE_CURSES) {
4032 error_report("curses display cannot be used with -daemonize");
4039 if (default_parallel)
4040 add_device_config(DEV_PARALLEL, "null");
4041 if (default_serial && default_monitor) {
4042 add_device_config(DEV_SERIAL, "mon:stdio");
4045 add_device_config(DEV_SERIAL, "stdio");
4046 if (default_monitor)
4047 monitor_parse("stdio", "readline", false);
4051 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4052 if (default_parallel)
4053 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4054 if (default_monitor)
4055 monitor_parse("vc:80Cx24C", "readline", false);
4058 #if defined(CONFIG_VNC)
4059 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4063 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4064 if (!qemu_display_find_default(&dpy)) {
4065 dpy.type = DISPLAY_TYPE_NONE;
4066 #if defined(CONFIG_VNC)
4067 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4071 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4072 dpy.type = DISPLAY_TYPE_NONE;
4075 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4076 error_report("-alt-grab and -ctrl-grab are only valid "
4077 "for SDL, ignoring option");
4079 if (dpy.has_window_close &&
4080 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4081 error_report("-no-quit is only valid for GTK and SDL, "
4085 qemu_display_early_init(&dpy);
4086 qemu_console_early_init();
4088 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4089 #if defined(CONFIG_OPENGL)
4090 error_report("OpenGL is not supported by the display");
4092 error_report("OpenGL support is disabled");
4100 qemu_opts_foreach(qemu_find_opts("object"),
4101 user_creatable_add_opts_foreach,
4102 object_create_initial, &error_fatal);
4104 qemu_opts_foreach(qemu_find_opts("chardev"),
4105 chardev_init_func, NULL, &error_fatal);
4106 /* now chardevs have been created we may have semihosting to connect */
4107 qemu_semihosting_connect_chardevs();
4109 #ifdef CONFIG_VIRTFS
4110 qemu_opts_foreach(qemu_find_opts("fsdev"),
4111 fsdev_init_func, NULL, &error_fatal);
4114 if (qemu_opts_foreach(qemu_find_opts("device"),
4115 device_help_func, NULL, NULL)) {
4120 * Note: we need to create block backends before
4121 * machine_set_property(), so machine properties can refer to
4124 configure_blockdev(&bdo_queue, machine_class, snapshot);
4126 machine_opts = qemu_get_machine_opts();
4127 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4131 * Note: uses machine properties such as kernel-irqchip, must run
4132 * after machine_set_property().
4134 configure_accelerators(argv[0]);
4137 * Beware, QOM objects created before this point miss global and
4138 * compat properties.
4140 * Global properties get set up by qdev_prop_register_global(),
4141 * called from user_register_global_props(), and certain option
4142 * desugaring. Also in CPU feature desugaring (buried in
4143 * parse_cpu_option()), which happens below this point, but may
4144 * only target the CPU type, which can only be created after
4145 * parse_cpu_option() returned the type.
4147 * Machine compat properties: object_set_machine_compat_props().
4148 * Accelerator compat props: object_set_accelerator_compat_props(),
4149 * called from configure_accelerator().
4152 if (!qtest_enabled() && machine_class->deprecation_reason) {
4153 error_report("Machine type '%s' is deprecated: %s",
4154 machine_class->name, machine_class->deprecation_reason);
4158 * Note: creates a QOM object, must run only after global and
4159 * compat properties have been set up.
4161 migration_object_init();
4164 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4167 machine_opts = qemu_get_machine_opts();
4168 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4169 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4170 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4171 bios_name = qemu_opt_get(machine_opts, "firmware");
4173 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4175 boot_order = qemu_opt_get(opts, "order");
4177 validate_bootdevices(boot_order, &error_fatal);
4180 boot_once = qemu_opt_get(opts, "once");
4182 validate_bootdevices(boot_once, &error_fatal);
4185 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4186 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4190 boot_order = machine_class->default_boot_order;
4193 if (!kernel_cmdline) {
4194 kernel_cmdline = "";
4195 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4198 linux_boot = (kernel_filename != NULL);
4200 if (!linux_boot && *kernel_cmdline != '\0') {
4201 error_report("-append only allowed with -kernel option");
4205 if (!linux_boot && initrd_filename != NULL) {
4206 error_report("-initrd only allowed with -kernel option");
4210 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4211 /* fall back to the -kernel/-append */
4212 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4215 /* spice needs the timers to be initialized by this point */
4221 QemuOptsList *net = qemu_find_opts("net");
4222 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4224 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4228 if (net_init_clients(&err) < 0) {
4229 error_report_err(err);
4233 qemu_opts_foreach(qemu_find_opts("object"),
4234 user_creatable_add_opts_foreach,
4235 object_create_delayed, &error_fatal);
4241 dirty_bitmap_mig_init();
4243 qemu_opts_foreach(qemu_find_opts("mon"),
4244 mon_init_func, NULL, &error_fatal);
4246 /* connect semihosting console input if requested */
4247 qemu_semihosting_console_init();
4249 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4251 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4253 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4256 /* If no default VGA is requested, the default is "none". */
4258 vga_model = get_default_vga_model(machine_class);
4261 select_vgahw(machine_class, vga_model);
4265 i = select_watchdog(watchdog);
4267 exit (i == 1 ? 1 : 0);
4270 /* This checkpoint is required by replay to separate prior clock
4271 reading from the other reads, because timer polling functions query
4272 clock values from the log. */
4273 replay_checkpoint(CHECKPOINT_INIT);
4274 qdev_machine_init();
4276 current_machine->boot_order = boot_order;
4278 /* parse features once if machine provides default cpu_type */
4279 current_machine->cpu_type = machine_class->default_cpu_type;
4281 current_machine->cpu_type = parse_cpu_option(cpu_option);
4284 if (current_machine->ram_memdev_id) {
4286 ram_addr_t backend_size;
4288 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4289 TYPE_MEMORY_BACKEND, NULL);
4290 backend_size = object_property_get_uint(backend, "size", &error_abort);
4291 if (have_custom_ram_size && backend_size != ram_size) {
4292 error_report("Size specified by -m option must match size of "
4293 "explicitly specified 'memory-backend' property");
4296 ram_size = backend_size;
4299 if (!xen_enabled()) {
4300 /* On 32-bit hosts, QEMU is limited by virtual address space */
4301 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4302 error_report("at most 2047 MB RAM can be simulated");
4307 current_machine->ram_size = ram_size;
4308 current_machine->maxram_size = maxram_size;
4309 current_machine->ram_slots = ram_slots;
4311 parse_numa_opts(current_machine);
4313 if (machine_class->default_ram_id && current_machine->ram_size &&
4314 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4315 create_default_memdev(current_machine, mem_path);
4317 /* do monitor/qmp handling at preconfig state if requested */
4320 audio_init_audiodevs();
4322 /* from here on runstate is RUN_STATE_PRELAUNCH */
4323 machine_run_board_init(current_machine);
4329 if (hax_enabled()) {
4333 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4334 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4336 /* init USB devices */
4337 if (machine_usb(current_machine)) {
4338 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4342 /* init generic devices */
4343 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4344 qemu_opts_foreach(qemu_find_opts("device"),
4345 device_init_func, NULL, &error_fatal);
4347 cpu_synchronize_all_post_init();
4349 rom_reset_order_override();
4351 /* Did we create any drives that we failed to create a device for? */
4352 drive_check_orphaned();
4354 /* Don't warn about the default network setup that you get if
4355 * no command line -net or -netdev options are specified. There
4356 * are two cases that we would otherwise complain about:
4357 * (1) board doesn't support a NIC but the implicit "-net nic"
4359 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4360 * sets up a nic that isn't connected to anything.
4362 if (!default_net && (!qtest_enabled() || has_defaults)) {
4363 net_check_clients();
4367 qemu_boot_set(boot_once, &error_fatal);
4368 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4371 /* init local displays */
4372 ds = init_displaystate();
4373 qemu_display_init(ds, &dpy);
4375 /* must be after terminal init, SDL library changes signal handlers */
4376 os_setup_signal_handling();
4378 /* init remote displays */
4380 qemu_opts_foreach(qemu_find_opts("vnc"),
4381 vnc_init_func, NULL, &error_fatal);
4385 qemu_spice_display_init();
4388 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4392 qdev_machine_creation_done();
4394 /* TODO: once all bus devices are qdevified, this should be done
4395 * when bus is created by qdev.c */
4397 * TODO: If we had a main 'reset container' that the whole system
4398 * lived in, we could reset that using the multi-phase reset
4399 * APIs. For the moment, we just reset the sysbus, which will cause
4400 * all devices hanging off it (and all their child buses, recursively)
4401 * to be reset. Note that this will *not* reset any Device objects
4402 * which are not attached to some part of the qbus tree!
4404 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4405 qemu_run_machine_init_done_notifiers();
4407 if (rom_check_and_register_reset() != 0) {
4408 error_report("rom check and register reset failed");
4414 /* This checkpoint is required by replay to separate prior clock
4415 reading from the other reads, because timer polling functions query
4416 clock values from the log. */
4417 replay_checkpoint(CHECKPOINT_RESET);
4418 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4419 register_global_state();
4421 Error *local_err = NULL;
4422 if (load_snapshot(loadvm, &local_err) < 0) {
4423 error_report_err(local_err);
4428 if (replay_mode != REPLAY_MODE_NONE) {
4429 replay_vmstate_init();
4432 qdev_prop_check_globals();
4433 if (vmstate_dump_file) {
4435 dump_vmstate_json_to_file(vmstate_dump_file);
4440 Error *local_err = NULL;
4441 qemu_start_incoming_migration(incoming, &local_err);
4443 error_reportf_err(local_err, "-incoming %s: ", incoming);
4446 } else if (autostart) {
4450 accel_setup_post(current_machine);
4456 void qemu_cleanup(void)
4458 gdbserver_cleanup();
4461 * cleaning up the migration object cancels any existing migration
4462 * try to do this early so that it also stops using devices.
4464 migration_shutdown();
4467 * We must cancel all block jobs while the block layer is drained,
4468 * or cancelling will be affected by throttling and thus may block
4469 * for an extended period of time.
4470 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4471 * it in the drained section.
4472 * We do not need to end this section, because we do not want any
4473 * requests happening from here on anyway.
4475 bdrv_drain_all_begin();
4477 /* No more vcpu or device emulation activity beyond this point */
4481 job_cancel_sync_all();
4486 /* vhost-user must be cleaned up before chardevs. */
4492 user_creatable_cleanup();
4493 /* TODO: unref root container, check all devices are ok */