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 "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
38 #if defined(__APPLE__) || defined(main)
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
43 return qemu_main(argc, argv, NULL);
46 #define main qemu_main
48 #endif /* CONFIG_SDL */
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "migration/postcopy-ram.h"
98 #include "sysemu/kvm.h"
99 #include "sysemu/hax.h"
100 #include "qapi/qobject-input-visitor.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qemu/main-loop.h"
106 #include "fsdev/qemu-fsdev.h"
108 #include "sysemu/qtest.h"
110 #include "disas/disas.h"
113 #include "slirp/libslirp.h"
115 #include "trace-root.h"
116 #include "trace/control.h"
117 #include "qemu/queue.h"
118 #include "sysemu/arch_init.h"
120 #include "ui/qemu-spice.h"
121 #include "qapi/string-input-visitor.h"
122 #include "qapi/opts-visitor.h"
123 #include "qapi/clone-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "exec/semihost.h"
126 #include "crypto/init.h"
127 #include "sysemu/replay.h"
128 #include "qapi/qapi-events-run-state.h"
129 #include "qapi/qapi-visit-block-core.h"
130 #include "qapi/qapi-visit-ui.h"
131 #include "qapi/qapi-commands-block-core.h"
132 #include "qapi/qapi-commands-misc.h"
133 #include "qapi/qapi-commands-run-state.h"
134 #include "qapi/qmp/qerror.h"
135 #include "sysemu/iothread.h"
137 #define MAX_VIRTIO_CONSOLES 1
139 static const char *data_dir[16];
140 static int data_dir_idx;
141 const char *bios_name = NULL;
142 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
144 const char* keyboard_layout = NULL;
146 const char *mem_path = NULL;
147 int mem_prealloc = 0; /* force preallocation of physical target memory */
148 bool enable_mlock = false;
150 NICInfo nd_table[MAX_NICS];
152 static int rtc_utc = 1;
153 static int rtc_date_offset = -1; /* -1 means no change */
154 QEMUClockType rtc_clock;
155 int vga_interface_type = VGA_NONE;
156 static DisplayOptions dpy;
158 static int num_serial_hds = 0;
159 static Chardev **serial_hds = NULL;
160 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
161 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
162 int win2k_install_hack = 0;
165 unsigned int max_cpus;
168 int acpi_enabled = 1;
171 static int no_reboot;
174 int graphic_rotate = 0;
175 const char *watchdog;
176 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
179 const char *qemu_name;
182 unsigned int nb_prom_envs = 0;
183 const char *prom_envs[MAX_PROM_ENVS];
186 uint8_t *boot_splash_filedata;
187 size_t boot_splash_filedata_size;
188 uint8_t qemu_extra_params_fw[2];
190 int icount_align_option;
192 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
193 * little-endian "wire format" described in the SMBIOS 2.6 specification.
198 static NotifierList exit_notifiers =
199 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201 static NotifierList machine_init_done_notifiers =
202 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
206 enum xen_mode xen_mode = XEN_EMULATE;
207 bool xen_domid_restrict;
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_virtcon = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
234 { .driver = "virtio-serial", .flag = &default_virtcon },
235 { .driver = "VGA", .flag = &default_vga },
236 { .driver = "isa-vga", .flag = &default_vga },
237 { .driver = "cirrus-vga", .flag = &default_vga },
238 { .driver = "isa-cirrus-vga", .flag = &default_vga },
239 { .driver = "vmware-svga", .flag = &default_vga },
240 { .driver = "qxl-vga", .flag = &default_vga },
241 { .driver = "virtio-vga", .flag = &default_vga },
244 static QemuOptsList qemu_rtc_opts = {
246 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
250 .type = QEMU_OPT_STRING,
253 .type = QEMU_OPT_STRING,
256 .type = QEMU_OPT_STRING,
258 { /* end of list */ }
262 static QemuOptsList qemu_sandbox_opts = {
264 .implied_opt_name = "enable",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
269 .type = QEMU_OPT_BOOL,
273 .type = QEMU_OPT_STRING,
276 .name = "elevateprivileges",
277 .type = QEMU_OPT_STRING,
281 .type = QEMU_OPT_STRING,
284 .name = "resourcecontrol",
285 .type = QEMU_OPT_STRING,
287 { /* end of list */ }
291 static QemuOptsList qemu_option_rom_opts = {
292 .name = "option-rom",
293 .implied_opt_name = "romfile",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
298 .type = QEMU_OPT_NUMBER,
301 .type = QEMU_OPT_STRING,
303 { /* end of list */ }
307 static QemuOptsList qemu_machine_opts = {
309 .implied_opt_name = "type",
311 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
314 * no elements => accept any
315 * sanity checking will happen later
316 * when setting machine properties
322 static QemuOptsList qemu_accel_opts = {
324 .implied_opt_name = "accel",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
330 .type = QEMU_OPT_STRING,
331 .help = "Select the type of accelerator",
335 .type = QEMU_OPT_STRING,
336 .help = "Enable/disable multi-threaded TCG",
338 { /* end of list */ }
342 static QemuOptsList qemu_boot_opts = {
344 .implied_opt_name = "order",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
350 .type = QEMU_OPT_STRING,
353 .type = QEMU_OPT_STRING,
356 .type = QEMU_OPT_BOOL,
359 .type = QEMU_OPT_STRING,
361 .name = "splash-time",
362 .type = QEMU_OPT_STRING,
364 .name = "reboot-timeout",
365 .type = QEMU_OPT_STRING,
368 .type = QEMU_OPT_BOOL,
374 static QemuOptsList qemu_add_fd_opts = {
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
380 .type = QEMU_OPT_NUMBER,
381 .help = "file descriptor of which a duplicate is added to fd set",
384 .type = QEMU_OPT_NUMBER,
385 .help = "ID of the fd set to add fd to",
388 .type = QEMU_OPT_STRING,
389 .help = "free-form string used to describe fd",
391 { /* end of list */ }
395 static QemuOptsList qemu_object_opts = {
397 .implied_opt_name = "qom-type",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
404 static QemuOptsList qemu_tpmdev_opts = {
406 .implied_opt_name = "type",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
409 /* options are defined in the TPM backends */
410 { /* end of list */ }
414 static QemuOptsList qemu_realtime_opts = {
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
420 .type = QEMU_OPT_BOOL,
422 { /* end of list */ }
426 static QemuOptsList qemu_msg_opts = {
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
432 .type = QEMU_OPT_BOOL,
434 { /* end of list */ }
438 static QemuOptsList qemu_name_opts = {
440 .implied_opt_name = "guest",
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
446 .type = QEMU_OPT_STRING,
447 .help = "Sets the name of the guest.\n"
448 "This name will be displayed in the SDL window caption.\n"
449 "The name will also be used for the VNC server",
452 .type = QEMU_OPT_STRING,
453 .help = "Sets the name of the QEMU process, as shown in top etc",
455 .name = "debug-threads",
456 .type = QEMU_OPT_BOOL,
457 .help = "When enabled, name the individual threads; defaults off.\n"
458 "NOTE: The thread names are for debugging and not a\n"
461 { /* End of list */ }
465 static QemuOptsList qemu_mem_opts = {
467 .implied_opt_name = "size",
468 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
473 .type = QEMU_OPT_SIZE,
477 .type = QEMU_OPT_NUMBER,
481 .type = QEMU_OPT_SIZE,
483 { /* end of list */ }
487 static QemuOptsList qemu_icount_opts = {
489 .implied_opt_name = "shift",
491 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
495 .type = QEMU_OPT_STRING,
498 .type = QEMU_OPT_BOOL,
501 .type = QEMU_OPT_BOOL,
504 .type = QEMU_OPT_STRING,
507 .type = QEMU_OPT_STRING,
509 .name = "rrsnapshot",
510 .type = QEMU_OPT_STRING,
512 { /* end of list */ }
516 static QemuOptsList qemu_semihosting_config_opts = {
517 .name = "semihosting-config",
518 .implied_opt_name = "enable",
519 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
523 .type = QEMU_OPT_BOOL,
526 .type = QEMU_OPT_STRING,
529 .type = QEMU_OPT_STRING,
531 { /* end of list */ }
535 static QemuOptsList qemu_fw_cfg_opts = {
537 .implied_opt_name = "name",
538 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
542 .type = QEMU_OPT_STRING,
543 .help = "Sets the fw_cfg name of the blob to be inserted",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets the name of the file from which\n"
548 "the fw_cfg blob will be loaded",
551 .type = QEMU_OPT_STRING,
552 .help = "Sets content of the blob to be inserted from a string",
554 { /* end of list */ }
559 * Get machine options
561 * Returns: machine options (never null).
563 QemuOpts *qemu_get_machine_opts(void)
565 return qemu_find_opts_singleton("machine");
568 const char *qemu_get_vm_name(void)
573 static void res_free(void)
575 g_free(boot_splash_filedata);
576 boot_splash_filedata = NULL;
579 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
581 const char *driver = qemu_opt_get(opts, "driver");
586 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
587 if (strcmp(default_list[i].driver, driver) != 0)
589 *(default_list[i].flag) = 0;
594 /***********************************************************/
597 static RunState current_run_state = RUN_STATE_PRELAUNCH;
599 /* We use RUN_STATE__MAX but any invalid value will do */
600 static RunState vmstop_requested = RUN_STATE__MAX;
601 static QemuMutex vmstop_lock;
606 } RunStateTransition;
608 static const RunStateTransition runstate_transitions_def[] = {
610 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
611 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
612 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
614 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
615 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
618 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
620 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
621 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
622 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
624 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
625 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
632 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
636 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
639 { RUN_STATE_PAUSED, RUN_STATE_COLO},
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
655 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
656 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
658 { RUN_STATE_COLO, RUN_STATE_RUNNING },
660 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
661 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
662 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
664 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
666 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
668 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
669 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
670 { RUN_STATE_RUNNING, RUN_STATE_COLO},
672 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
674 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
678 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
679 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
680 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
681 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
682 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
683 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
685 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
686 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
687 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
688 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
694 { RUN_STATE__MAX, RUN_STATE__MAX },
697 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
699 bool runstate_check(RunState state)
701 return current_run_state == state;
704 bool runstate_store(char *str, size_t size)
706 const char *state = RunState_str(current_run_state);
707 size_t len = strlen(state) + 1;
712 memcpy(str, state, len);
716 static void runstate_init(void)
718 const RunStateTransition *p;
720 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
721 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
722 runstate_valid_transitions[p->from][p->to] = true;
725 qemu_mutex_init(&vmstop_lock);
728 /* This function will abort() on invalid state transitions */
729 void runstate_set(RunState new_state)
731 assert(new_state < RUN_STATE__MAX);
733 if (current_run_state == new_state) {
737 if (!runstate_valid_transitions[current_run_state][new_state]) {
738 error_report("invalid runstate transition: '%s' -> '%s'",
739 RunState_str(current_run_state),
740 RunState_str(new_state));
743 trace_runstate_set(new_state);
744 current_run_state = new_state;
747 int runstate_is_running(void)
749 return runstate_check(RUN_STATE_RUNNING);
752 bool runstate_needs_reset(void)
754 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
755 runstate_check(RUN_STATE_SHUTDOWN);
758 StatusInfo *qmp_query_status(Error **errp)
760 StatusInfo *info = g_malloc0(sizeof(*info));
762 info->running = runstate_is_running();
763 info->singlestep = singlestep;
764 info->status = current_run_state;
769 bool qemu_vmstop_requested(RunState *r)
771 qemu_mutex_lock(&vmstop_lock);
772 *r = vmstop_requested;
773 vmstop_requested = RUN_STATE__MAX;
774 qemu_mutex_unlock(&vmstop_lock);
775 return *r < RUN_STATE__MAX;
778 void qemu_system_vmstop_request_prepare(void)
780 qemu_mutex_lock(&vmstop_lock);
783 void qemu_system_vmstop_request(RunState state)
785 vmstop_requested = state;
786 qemu_mutex_unlock(&vmstop_lock);
790 /***********************************************************/
791 /* real time host monotonic timer */
793 static time_t qemu_time(void)
795 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
798 /***********************************************************/
799 /* host time/date access */
800 void qemu_get_timedate(struct tm *tm, int offset)
802 time_t ti = qemu_time();
805 if (rtc_date_offset == -1) {
809 localtime_r(&ti, tm);
811 ti -= rtc_date_offset;
816 int qemu_timedate_diff(struct tm *tm)
820 if (rtc_date_offset == -1)
822 seconds = mktimegm(tm);
825 tmp.tm_isdst = -1; /* use timezone to figure it out */
826 seconds = mktime(&tmp);
829 seconds = mktimegm(tm) + rtc_date_offset;
831 return seconds - qemu_time();
834 static void configure_rtc_date_offset(const char *startdate, int legacy)
836 time_t rtc_start_date;
839 if (!strcmp(startdate, "now") && legacy) {
840 rtc_date_offset = -1;
842 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
850 } else if (sscanf(startdate, "%d-%d-%d",
862 rtc_start_date = mktimegm(&tm);
863 if (rtc_start_date == -1) {
865 error_report("invalid date format");
866 error_printf("valid formats: "
867 "'2006-06-17T16:01:21' or '2006-06-17'\n");
870 rtc_date_offset = qemu_time() - rtc_start_date;
874 static void configure_rtc(QemuOpts *opts)
878 value = qemu_opt_get(opts, "base");
880 if (!strcmp(value, "utc")) {
882 } else if (!strcmp(value, "localtime")) {
883 Error *blocker = NULL;
885 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
886 "-rtc base=localtime");
887 replay_add_blocker(blocker);
889 configure_rtc_date_offset(value, 0);
892 value = qemu_opt_get(opts, "clock");
894 if (!strcmp(value, "host")) {
895 rtc_clock = QEMU_CLOCK_HOST;
896 } else if (!strcmp(value, "rt")) {
897 rtc_clock = QEMU_CLOCK_REALTIME;
898 } else if (!strcmp(value, "vm")) {
899 rtc_clock = QEMU_CLOCK_VIRTUAL;
901 error_report("invalid option value '%s'", value);
905 value = qemu_opt_get(opts, "driftfix");
907 if (!strcmp(value, "slew")) {
908 static GlobalProperty slew_lost_ticks = {
909 .driver = "mc146818rtc",
910 .property = "lost_tick_policy",
914 qdev_prop_register_global(&slew_lost_ticks);
915 } else if (!strcmp(value, "none")) {
916 /* discard is default */
918 error_report("invalid option value '%s'", value);
924 /***********************************************************/
925 /* Bluetooth support */
928 static struct HCIInfo *hci_table[MAX_NICS];
930 struct HCIInfo *qemu_next_hci(void)
932 if (cur_hci == nb_hcis)
935 return hci_table[cur_hci++];
938 static int bt_hci_parse(const char *str)
943 if (nb_hcis >= MAX_NICS) {
944 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
957 bdaddr.b[5] = 0x56 + nb_hcis;
958 hci->bdaddr_set(hci, bdaddr.b);
960 hci_table[nb_hcis++] = hci;
965 static void bt_vhci_add(int vlan_id)
967 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
970 warn_report("adding a VHCI to an empty scatternet %i",
973 bt_vhci_init(bt_new_hci(vlan));
976 static struct bt_device_s *bt_device_add(const char *opt)
978 struct bt_scatternet_s *vlan;
980 char *endp = strstr(opt, ",vlan=");
981 int len = (endp ? endp - opt : strlen(opt)) + 1;
984 pstrcpy(devname, MIN(sizeof(devname), len), opt);
987 vlan_id = strtol(endp + 6, &endp, 0);
989 error_report("unrecognised bluetooth vlan Id");
994 vlan = qemu_find_bt_vlan(vlan_id);
997 warn_report("adding a slave device to an empty scatternet %i",
1000 if (!strcmp(devname, "keyboard"))
1001 return bt_keyboard_init(vlan);
1003 error_report("unsupported bluetooth device '%s'", devname);
1007 static int bt_parse(const char *opt)
1009 const char *endp, *p;
1012 if (strstart(opt, "hci", &endp)) {
1013 if (!*endp || *endp == ',') {
1015 if (!strstart(endp, ",vlan=", 0))
1018 return bt_hci_parse(opt);
1020 } else if (strstart(opt, "vhci", &endp)) {
1021 if (!*endp || *endp == ',') {
1023 if (strstart(endp, ",vlan=", &p)) {
1024 vlan = strtol(p, (char **) &endp, 0);
1026 error_report("bad scatternet '%s'", p);
1030 error_report("bad parameter '%s'", endp + 1);
1039 } else if (strstart(opt, "device:", &endp))
1040 return !bt_device_add(endp);
1042 error_report("bad bluetooth parameter '%s'", opt);
1046 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1048 if (qemu_opt_get_bool(opts, "enable", false)) {
1049 #ifdef CONFIG_SECCOMP
1050 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1051 | QEMU_SECCOMP_SET_OBSOLETE;
1052 const char *value = NULL;
1054 value = qemu_opt_get(opts, "obsolete");
1056 if (g_str_equal(value, "allow")) {
1057 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1058 } else if (g_str_equal(value, "deny")) {
1059 /* this is the default option, this if is here
1060 * to provide a little bit of consistency for
1061 * the command line */
1063 error_report("invalid argument for obsolete");
1068 value = qemu_opt_get(opts, "elevateprivileges");
1070 if (g_str_equal(value, "deny")) {
1071 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1072 } else if (g_str_equal(value, "children")) {
1073 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1075 /* calling prctl directly because we're
1076 * not sure if host has CAP_SYS_ADMIN set*/
1077 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1078 error_report("failed to set no_new_privs "
1082 } else if (g_str_equal(value, "allow")) {
1085 error_report("invalid argument for elevateprivileges");
1090 value = qemu_opt_get(opts, "spawn");
1092 if (g_str_equal(value, "deny")) {
1093 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1094 } else if (g_str_equal(value, "allow")) {
1097 error_report("invalid argument for spawn");
1102 value = qemu_opt_get(opts, "resourcecontrol");
1104 if (g_str_equal(value, "deny")) {
1105 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1106 } else if (g_str_equal(value, "allow")) {
1109 error_report("invalid argument for resourcecontrol");
1114 if (seccomp_start(seccomp_opts) < 0) {
1115 error_report("failed to install seccomp syscall filter "
1120 error_report("seccomp support is disabled");
1128 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1130 const char *proc_name;
1132 if (qemu_opt_get(opts, "debug-threads")) {
1133 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1135 qemu_name = qemu_opt_get(opts, "guest");
1137 proc_name = qemu_opt_get(opts, "process");
1139 os_set_proc_name(proc_name);
1145 bool defaults_enabled(void)
1147 return has_defaults;
1151 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1153 int fd, dupfd, flags;
1155 const char *fd_opaque = NULL;
1158 fd = qemu_opt_get_number(opts, "fd", -1);
1159 fdset_id = qemu_opt_get_number(opts, "set", -1);
1160 fd_opaque = qemu_opt_get(opts, "opaque");
1163 error_report("fd option is required and must be non-negative");
1167 if (fd <= STDERR_FILENO) {
1168 error_report("fd cannot be a standard I/O stream");
1173 * All fds inherited across exec() necessarily have FD_CLOEXEC
1174 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1176 flags = fcntl(fd, F_GETFD);
1177 if (flags == -1 || (flags & FD_CLOEXEC)) {
1178 error_report("fd is not valid or already in use");
1183 error_report("set option is required and must be non-negative");
1187 #ifdef F_DUPFD_CLOEXEC
1188 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1192 qemu_set_cloexec(dupfd);
1196 error_report("error duplicating fd: %s", strerror(errno));
1200 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1201 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1208 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1212 fd = qemu_opt_get_number(opts, "fd", -1);
1219 /***********************************************************/
1220 /* QEMU Block devices */
1222 #define HD_OPTS "media=disk"
1223 #define CDROM_OPTS "media=cdrom"
1225 #define PFLASH_OPTS ""
1229 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1231 BlockInterfaceType *block_default_type = opaque;
1233 return drive_new(opts, *block_default_type) == NULL;
1236 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1238 if (qemu_opt_get(opts, "snapshot") == NULL) {
1239 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1244 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1245 int index, const char *optstr)
1250 if (!enable || drive_get_by_index(type, index)) {
1254 opts = drive_add(type, index, NULL, optstr);
1256 drive_enable_snapshot(NULL, opts, NULL);
1259 dinfo = drive_new(opts, type);
1263 dinfo->is_default = true;
1267 static QemuOptsList qemu_smp_opts = {
1269 .implied_opt_name = "cpus",
1270 .merge_lists = true,
1271 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1275 .type = QEMU_OPT_NUMBER,
1278 .type = QEMU_OPT_NUMBER,
1281 .type = QEMU_OPT_NUMBER,
1284 .type = QEMU_OPT_NUMBER,
1287 .type = QEMU_OPT_NUMBER,
1289 { /*End of list */ }
1293 static void smp_parse(QemuOpts *opts)
1296 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1297 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1298 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1299 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1301 /* compute missing values, prefer sockets over cores over threads */
1302 if (cpus == 0 || sockets == 0) {
1303 sockets = sockets > 0 ? sockets : 1;
1304 cores = cores > 0 ? cores : 1;
1305 threads = threads > 0 ? threads : 1;
1307 cpus = cores * threads * sockets;
1309 } else if (cores == 0) {
1310 threads = threads > 0 ? threads : 1;
1311 cores = cpus / (sockets * threads);
1312 cores = cores > 0 ? cores : 1;
1313 } else if (threads == 0) {
1314 threads = cpus / (cores * sockets);
1315 threads = threads > 0 ? threads : 1;
1316 } else if (sockets * cores * threads < cpus) {
1317 error_report("cpu topology: "
1318 "sockets (%u) * cores (%u) * threads (%u) < "
1320 sockets, cores, threads, cpus);
1324 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1326 if (max_cpus < cpus) {
1327 error_report("maxcpus must be equal to or greater than smp");
1331 if (sockets * cores * threads > max_cpus) {
1332 error_report("cpu topology: "
1333 "sockets (%u) * cores (%u) * threads (%u) > "
1335 sockets, cores, threads, max_cpus);
1341 smp_threads = threads;
1345 Error *blocker = NULL;
1346 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1347 replay_add_blocker(blocker);
1351 static void realtime_init(void)
1354 if (os_mlock() < 0) {
1355 error_report("locking memory failed");
1362 static void configure_msg(QemuOpts *opts)
1364 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1367 /***********************************************************/
1370 typedef struct SemihostingConfig {
1372 SemihostingTarget target;
1375 const char *cmdline; /* concatenated argv */
1376 } SemihostingConfig;
1378 static SemihostingConfig semihosting;
1380 bool semihosting_enabled(void)
1382 return semihosting.enabled;
1385 SemihostingTarget semihosting_get_target(void)
1387 return semihosting.target;
1390 const char *semihosting_get_arg(int i)
1392 if (i >= semihosting.argc) {
1395 return semihosting.argv[i];
1398 int semihosting_get_argc(void)
1400 return semihosting.argc;
1403 const char *semihosting_get_cmdline(void)
1405 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1406 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1408 return semihosting.cmdline;
1411 static int add_semihosting_arg(void *opaque,
1412 const char *name, const char *val,
1415 SemihostingConfig *s = opaque;
1416 if (strcmp(name, "arg") == 0) {
1418 /* one extra element as g_strjoinv() expects NULL-terminated array */
1419 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1420 s->argv[s->argc - 1] = val;
1421 s->argv[s->argc] = NULL;
1426 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1427 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1432 add_semihosting_arg(&semihosting, "arg", file, NULL);
1434 /* split -append and initialize argv[1..n] */
1435 cmd_token = strtok(g_strdup(cmd), " ");
1437 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1438 cmd_token = strtok(NULL, " ");
1442 /* Now we still need this for compatibility with XEN. */
1443 bool has_igd_gfx_passthru;
1444 static void igd_gfx_passthru(void)
1446 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1449 /***********************************************************/
1452 static int usb_device_add(const char *devname)
1454 USBDevice *dev = NULL;
1456 if (!machine_usb(current_machine)) {
1460 dev = usbdevice_create(devname);
1467 static int usb_parse(const char *cmdline)
1470 r = usb_device_add(cmdline);
1472 error_report("could not add USB device '%s'", cmdline);
1477 /***********************************************************/
1478 /* machine registration */
1480 MachineState *current_machine;
1482 static MachineClass *find_machine(const char *name)
1484 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1485 MachineClass *mc = NULL;
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *temp = el->data;
1490 if (!strcmp(temp->name, name)) {
1495 !strcmp(temp->alias, name)) {
1501 g_slist_free(machines);
1505 MachineClass *find_default_machine(void)
1507 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1508 MachineClass *mc = NULL;
1510 for (el = machines; el; el = el->next) {
1511 MachineClass *temp = el->data;
1513 if (temp->is_default) {
1519 g_slist_free(machines);
1523 MachineInfoList *qmp_query_machines(Error **errp)
1525 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1526 MachineInfoList *mach_list = NULL;
1528 for (el = machines; el; el = el->next) {
1529 MachineClass *mc = el->data;
1530 MachineInfoList *entry;
1533 info = g_malloc0(sizeof(*info));
1534 if (mc->is_default) {
1535 info->has_is_default = true;
1536 info->is_default = true;
1540 info->has_alias = true;
1541 info->alias = g_strdup(mc->alias);
1544 info->name = g_strdup(mc->name);
1545 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1546 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1548 entry = g_malloc0(sizeof(*entry));
1549 entry->value = info;
1550 entry->next = mach_list;
1554 g_slist_free(machines);
1558 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1560 ObjectProperty *prop;
1561 ObjectPropertyIterator iter;
1563 if (!qemu_opt_has_help_opt(opts)) {
1567 object_property_iter_init(&iter, OBJECT(machine));
1568 while ((prop = object_property_iter_next(&iter))) {
1573 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1574 prop->name, prop->type);
1575 if (prop->description) {
1576 error_printf(" (%s)\n", prop->description);
1585 /***********************************************************/
1586 /* main execution loop */
1588 struct vm_change_state_entry {
1589 VMChangeStateHandler *cb;
1591 QLIST_ENTRY (vm_change_state_entry) entries;
1594 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1596 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1599 VMChangeStateEntry *e;
1601 e = g_malloc0(sizeof (*e));
1605 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1609 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1611 QLIST_REMOVE (e, entries);
1615 void vm_state_notify(int running, RunState state)
1617 VMChangeStateEntry *e, *next;
1619 trace_vm_state_notify(running, state);
1621 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1622 e->cb(e->opaque, running, state);
1626 static ShutdownCause reset_requested;
1627 static ShutdownCause shutdown_requested;
1628 static int shutdown_signal;
1629 static pid_t shutdown_pid;
1630 static int powerdown_requested;
1631 static int debug_requested;
1632 static int suspend_requested;
1633 static WakeupReason wakeup_reason;
1634 static NotifierList powerdown_notifiers =
1635 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1636 static NotifierList suspend_notifiers =
1637 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1638 static NotifierList wakeup_notifiers =
1639 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1640 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1642 ShutdownCause qemu_shutdown_requested_get(void)
1644 return shutdown_requested;
1647 ShutdownCause qemu_reset_requested_get(void)
1649 return reset_requested;
1652 static int qemu_shutdown_requested(void)
1654 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1657 static void qemu_kill_report(void)
1659 if (!qtest_driver() && shutdown_signal) {
1660 if (shutdown_pid == 0) {
1661 /* This happens for eg ^C at the terminal, so it's worth
1662 * avoiding printing an odd message in that case.
1664 error_report("terminating on signal %d", shutdown_signal);
1666 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1668 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1669 shutdown_signal, shutdown_pid,
1670 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1671 g_free(shutdown_cmd);
1673 shutdown_signal = 0;
1677 static ShutdownCause qemu_reset_requested(void)
1679 ShutdownCause r = reset_requested;
1681 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1682 reset_requested = SHUTDOWN_CAUSE_NONE;
1685 return SHUTDOWN_CAUSE_NONE;
1688 static int qemu_suspend_requested(void)
1690 int r = suspend_requested;
1691 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1692 suspend_requested = 0;
1698 static WakeupReason qemu_wakeup_requested(void)
1700 return wakeup_reason;
1703 static int qemu_powerdown_requested(void)
1705 int r = powerdown_requested;
1706 powerdown_requested = 0;
1710 static int qemu_debug_requested(void)
1712 int r = debug_requested;
1713 debug_requested = 0;
1718 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1720 void qemu_system_reset(ShutdownCause reason)
1724 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1726 cpu_synchronize_all_states();
1728 if (mc && mc->reset) {
1731 qemu_devices_reset();
1734 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1737 cpu_synchronize_all_post_reset();
1740 void qemu_system_guest_panicked(GuestPanicInformation *info)
1742 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1745 current_cpu->crash_occurred = true;
1747 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1748 !!info, info, &error_abort);
1749 vm_stop(RUN_STATE_GUEST_PANICKED);
1751 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1752 !!info, info, &error_abort);
1753 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1757 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1758 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1759 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1760 info->u.hyper_v.arg1,
1761 info->u.hyper_v.arg2,
1762 info->u.hyper_v.arg3,
1763 info->u.hyper_v.arg4,
1764 info->u.hyper_v.arg5);
1765 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1766 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1767 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1769 S390CrashReason_str(info->u.s390.reason),
1770 info->u.s390.psw_mask,
1771 info->u.s390.psw_addr);
1773 qapi_free_GuestPanicInformation(info);
1777 void qemu_system_reset_request(ShutdownCause reason)
1780 shutdown_requested = reason;
1782 reset_requested = reason;
1785 qemu_notify_event();
1788 static void qemu_system_suspend(void)
1791 notifier_list_notify(&suspend_notifiers, NULL);
1792 runstate_set(RUN_STATE_SUSPENDED);
1793 qapi_event_send_suspend(&error_abort);
1796 void qemu_system_suspend_request(void)
1798 if (runstate_check(RUN_STATE_SUSPENDED)) {
1801 suspend_requested = 1;
1803 qemu_notify_event();
1806 void qemu_register_suspend_notifier(Notifier *notifier)
1808 notifier_list_add(&suspend_notifiers, notifier);
1811 void qemu_system_wakeup_request(WakeupReason reason)
1813 trace_system_wakeup_request(reason);
1815 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1818 if (!(wakeup_reason_mask & (1 << reason))) {
1821 runstate_set(RUN_STATE_RUNNING);
1822 wakeup_reason = reason;
1823 qemu_notify_event();
1826 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1829 wakeup_reason_mask |= (1 << reason);
1831 wakeup_reason_mask &= ~(1 << reason);
1835 void qemu_register_wakeup_notifier(Notifier *notifier)
1837 notifier_list_add(&wakeup_notifiers, notifier);
1840 void qemu_system_killed(int signal, pid_t pid)
1842 shutdown_signal = signal;
1846 /* Cannot call qemu_system_shutdown_request directly because
1847 * we are in a signal handler.
1849 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1850 qemu_notify_event();
1853 void qemu_system_shutdown_request(ShutdownCause reason)
1855 trace_qemu_system_shutdown_request(reason);
1856 replay_shutdown_request(reason);
1857 shutdown_requested = reason;
1858 qemu_notify_event();
1861 static void qemu_system_powerdown(void)
1863 qapi_event_send_powerdown(&error_abort);
1864 notifier_list_notify(&powerdown_notifiers, NULL);
1867 void qemu_system_powerdown_request(void)
1869 trace_qemu_system_powerdown_request();
1870 powerdown_requested = 1;
1871 qemu_notify_event();
1874 void qemu_register_powerdown_notifier(Notifier *notifier)
1876 notifier_list_add(&powerdown_notifiers, notifier);
1879 void qemu_system_debug_request(void)
1881 debug_requested = 1;
1882 qemu_notify_event();
1885 static bool main_loop_should_exit(void)
1888 ShutdownCause request;
1890 if (qemu_debug_requested()) {
1891 vm_stop(RUN_STATE_DEBUG);
1893 if (qemu_suspend_requested()) {
1894 qemu_system_suspend();
1896 request = qemu_shutdown_requested();
1899 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1902 vm_stop(RUN_STATE_SHUTDOWN);
1907 request = qemu_reset_requested();
1910 qemu_system_reset(request);
1912 if (!runstate_check(RUN_STATE_RUNNING) &&
1913 !runstate_check(RUN_STATE_INMIGRATE)) {
1914 runstate_set(RUN_STATE_PRELAUNCH);
1917 if (qemu_wakeup_requested()) {
1919 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1920 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1921 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1923 qapi_event_send_wakeup(&error_abort);
1925 if (qemu_powerdown_requested()) {
1926 qemu_system_powerdown();
1928 if (qemu_vmstop_requested(&r)) {
1934 static void main_loop(void)
1936 #ifdef CONFIG_PROFILER
1940 #ifdef CONFIG_PROFILER
1941 ti = profile_getclock();
1943 main_loop_wait(false);
1944 #ifdef CONFIG_PROFILER
1945 dev_time += profile_getclock() - ti;
1947 } while (!main_loop_should_exit());
1950 static void version(void)
1952 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1953 QEMU_COPYRIGHT "\n");
1956 static void help(int exitcode)
1959 printf("usage: %s [options] [disk_image]\n\n"
1960 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1961 error_get_progname());
1963 #define QEMU_OPTIONS_GENERATE_HELP
1964 #include "qemu-options-wrapper.h"
1966 printf("\nDuring emulation, the following keys are useful:\n"
1967 "ctrl-alt-f toggle full screen\n"
1968 "ctrl-alt-n switch to virtual console 'n'\n"
1969 "ctrl-alt toggle mouse and keyboard grab\n"
1971 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1973 QEMU_HELP_BOTTOM "\n");
1978 #define HAS_ARG 0x0001
1980 typedef struct QEMUOption {
1987 static const QEMUOption qemu_options[] = {
1988 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1989 #define QEMU_OPTIONS_GENERATE_OPTIONS
1990 #include "qemu-options-wrapper.h"
1994 typedef struct VGAInterfaceInfo {
1995 const char *opt_name; /* option name */
1996 const char *name; /* human-readable name */
1997 /* Class names indicating that support is available.
1998 * If no class is specified, the interface is always available */
1999 const char *class_names[2];
2002 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2008 .name = "standard VGA",
2009 .class_names = { "VGA", "isa-vga" },
2012 .opt_name = "cirrus",
2013 .name = "Cirrus VGA",
2014 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2017 .opt_name = "vmware",
2018 .name = "VMWare SVGA",
2019 .class_names = { "vmware-svga" },
2022 .opt_name = "virtio",
2023 .name = "Virtio VGA",
2024 .class_names = { "virtio-vga" },
2029 .class_names = { "qxl-vga" },
2033 .name = "TCX framebuffer",
2034 .class_names = { "SUNW,tcx" },
2038 .name = "CG3 framebuffer",
2039 .class_names = { "cgthree" },
2042 .opt_name = "xenfb",
2046 static bool vga_interface_available(VGAInterfaceType t)
2048 VGAInterfaceInfo *ti = &vga_interfaces[t];
2050 assert(t < VGA_TYPE_MAX);
2051 return !ti->class_names[0] ||
2052 object_class_by_name(ti->class_names[0]) ||
2053 object_class_by_name(ti->class_names[1]);
2056 static void select_vgahw(const char *p)
2061 assert(vga_interface_type == VGA_NONE);
2062 for (t = 0; t < VGA_TYPE_MAX; t++) {
2063 VGAInterfaceInfo *ti = &vga_interfaces[t];
2064 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2065 if (!vga_interface_available(t)) {
2066 error_report("%s not available", ti->name);
2069 vga_interface_type = t;
2073 if (t == VGA_TYPE_MAX) {
2075 error_report("unknown vga type: %s", p);
2079 const char *nextopt;
2081 if (strstart(opts, ",retrace=", &nextopt)) {
2083 if (strstart(opts, "dumb", &nextopt))
2084 vga_retrace_method = VGA_RETRACE_DUMB;
2085 else if (strstart(opts, "precise", &nextopt))
2086 vga_retrace_method = VGA_RETRACE_PRECISE;
2087 else goto invalid_vga;
2088 } else goto invalid_vga;
2093 static void parse_display_qapi(const char *optarg)
2096 DisplayOptions *opts;
2099 v = qobject_input_visitor_new_str(optarg, "type", &err);
2101 error_report_err(err);
2105 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2106 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2108 qapi_free_DisplayOptions(opts);
2112 static void parse_display(const char *p)
2116 if (strstart(p, "sdl", &opts)) {
2118 * sdl DisplayType needs hand-crafted parser instead of
2119 * parse_display_qapi() due to some options not in
2120 * DisplayOptions, specifically:
2122 * Already deprecated.
2123 * - ctrl_grab + alt_grab
2124 * Not clear yet what happens to them long-term. Should
2125 * replaced by something better or deprecated and dropped.
2127 dpy.type = DISPLAY_TYPE_SDL;
2129 const char *nextopt;
2131 if (strstart(opts, ",frame=", &nextopt)) {
2132 g_printerr("The frame= sdl option is deprecated, and will be\n"
2133 "removed in a future release.\n");
2135 if (strstart(opts, "on", &nextopt)) {
2137 } else if (strstart(opts, "off", &nextopt)) {
2140 goto invalid_sdl_args;
2142 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2144 if (strstart(opts, "on", &nextopt)) {
2146 } else if (strstart(opts, "off", &nextopt)) {
2149 goto invalid_sdl_args;
2151 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2153 if (strstart(opts, "on", &nextopt)) {
2155 } else if (strstart(opts, "off", &nextopt)) {
2158 goto invalid_sdl_args;
2160 } else if (strstart(opts, ",window_close=", &nextopt)) {
2162 dpy.has_window_close = true;
2163 if (strstart(opts, "on", &nextopt)) {
2164 dpy.window_close = true;
2165 } else if (strstart(opts, "off", &nextopt)) {
2166 dpy.window_close = false;
2168 goto invalid_sdl_args;
2170 } else if (strstart(opts, ",gl=", &nextopt)) {
2173 if (strstart(opts, "on", &nextopt)) {
2174 dpy.gl = DISPLAYGL_MODE_ON;
2175 } else if (strstart(opts, "core", &nextopt)) {
2176 dpy.gl = DISPLAYGL_MODE_CORE;
2177 } else if (strstart(opts, "es", &nextopt)) {
2178 dpy.gl = DISPLAYGL_MODE_ES;
2179 } else if (strstart(opts, "off", &nextopt)) {
2180 dpy.gl = DISPLAYGL_MODE_OFF;
2182 goto invalid_sdl_args;
2186 error_report("invalid SDL option string");
2191 } else if (strstart(p, "vnc", &opts)) {
2193 * vnc isn't a (local) DisplayType but a protocol for remote
2197 vnc_parse(opts + 1, &error_fatal);
2199 error_report("VNC requires a display argument vnc=<display>");
2203 parse_display_qapi(p);
2207 static int balloon_parse(const char *arg)
2211 warn_report("This option is deprecated. "
2212 "Use '--device virtio-balloon' to enable the balloon device.");
2214 if (strcmp(arg, "none") == 0) {
2218 if (!strncmp(arg, "virtio", 6)) {
2219 if (arg[6] == ',') {
2220 /* have params -> parse them */
2221 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2226 /* create empty opts */
2227 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2230 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2237 char *qemu_find_file(int type, const char *name)
2243 /* Try the name as a straight path first */
2244 if (access(name, R_OK) == 0) {
2245 trace_load_file(name, name);
2246 return g_strdup(name);
2250 case QEMU_FILE_TYPE_BIOS:
2253 case QEMU_FILE_TYPE_KEYMAP:
2254 subdir = "keymaps/";
2260 for (i = 0; i < data_dir_idx; i++) {
2261 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2262 if (access(buf, R_OK) == 0) {
2263 trace_load_file(name, buf);
2271 static void qemu_add_data_dir(const char *path)
2278 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2281 for (i = 0; i < data_dir_idx; i++) {
2282 if (strcmp(data_dir[i], path) == 0) {
2283 return; /* duplicate */
2286 data_dir[data_dir_idx++] = g_strdup(path);
2289 static inline bool nonempty_str(const char *str)
2294 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2298 const char *name, *file, *str;
2299 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2301 if (fw_cfg == NULL) {
2302 error_report("fw_cfg device not available");
2305 name = qemu_opt_get(opts, "name");
2306 file = qemu_opt_get(opts, "file");
2307 str = qemu_opt_get(opts, "string");
2309 /* we need name and either a file or the content string */
2310 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2311 error_report("invalid argument(s)");
2314 if (nonempty_str(file) && nonempty_str(str)) {
2315 error_report("file and string are mutually exclusive");
2318 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2319 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2322 if (strncmp(name, "opt/", 4) != 0) {
2323 warn_report("externally provided fw_cfg item names "
2324 "should be prefixed with \"opt/\"");
2326 if (nonempty_str(str)) {
2327 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2328 buf = g_memdup(str, size);
2330 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2331 error_report("can't load %s", file);
2335 /* For legacy, keep user files in a specific global order. */
2336 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2337 fw_cfg_add_file(fw_cfg, name, buf, size);
2338 fw_cfg_reset_order_override(fw_cfg);
2342 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2344 return qdev_device_help(opts);
2347 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2352 dev = qdev_device_add(opts, &err);
2354 error_report_err(err);
2357 object_unref(OBJECT(dev));
2361 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2363 Error *local_err = NULL;
2365 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2367 error_report_err(local_err);
2375 #ifdef CONFIG_VIRTFS
2376 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2378 return qemu_fsdev_add(opts);
2382 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2385 const char *chardev;
2389 mode = qemu_opt_get(opts, "mode");
2393 if (strcmp(mode, "readline") == 0) {
2394 flags = MONITOR_USE_READLINE;
2395 } else if (strcmp(mode, "control") == 0) {
2396 flags = MONITOR_USE_CONTROL;
2398 error_report("unknown monitor mode \"%s\"", mode);
2402 if (qemu_opt_get_bool(opts, "pretty", 0))
2403 flags |= MONITOR_USE_PRETTY;
2405 /* OOB is off by default */
2406 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2407 flags |= MONITOR_USE_OOB;
2410 chardev = qemu_opt_get(opts, "chardev");
2411 chr = qemu_chr_find(chardev);
2413 error_report("chardev \"%s\" not found", chardev);
2417 monitor_init(chr, flags);
2421 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2423 static int monitor_device_index = 0;
2428 if (strstart(optarg, "chardev:", &p)) {
2429 snprintf(label, sizeof(label), "%s", p);
2431 snprintf(label, sizeof(label), "compat_monitor%d",
2432 monitor_device_index);
2433 opts = qemu_chr_parse_compat(label, optarg);
2435 error_report("parse error: %s", optarg);
2440 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2441 qemu_opt_set(opts, "mode", mode, &error_abort);
2442 qemu_opt_set(opts, "chardev", label, &error_abort);
2443 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2444 monitor_device_index++;
2447 struct device_config {
2449 DEV_USB, /* -usbdevice */
2451 DEV_SERIAL, /* -serial */
2452 DEV_PARALLEL, /* -parallel */
2453 DEV_VIRTCON, /* -virtioconsole */
2454 DEV_DEBUGCON, /* -debugcon */
2455 DEV_GDB, /* -gdb, -s */
2456 DEV_SCLP, /* s390 sclp */
2458 const char *cmdline;
2460 QTAILQ_ENTRY(device_config) next;
2463 static QTAILQ_HEAD(, device_config) device_configs =
2464 QTAILQ_HEAD_INITIALIZER(device_configs);
2466 static void add_device_config(int type, const char *cmdline)
2468 struct device_config *conf;
2470 conf = g_malloc0(sizeof(*conf));
2472 conf->cmdline = cmdline;
2473 loc_save(&conf->loc);
2474 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2477 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2479 struct device_config *conf;
2482 QTAILQ_FOREACH(conf, &device_configs, next) {
2483 if (conf->type != type)
2485 loc_push_restore(&conf->loc);
2486 rc = func(conf->cmdline);
2487 loc_pop(&conf->loc);
2495 static int serial_parse(const char *devname)
2497 int index = num_serial_hds;
2500 if (strcmp(devname, "none") == 0)
2502 snprintf(label, sizeof(label), "serial%d", index);
2503 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2505 serial_hds[index] = qemu_chr_new(label, devname);
2506 if (!serial_hds[index]) {
2507 error_report("could not connect serial device"
2508 " to character backend '%s'", devname);
2515 Chardev *serial_hd(int i)
2518 if (i < num_serial_hds) {
2519 return serial_hds[i];
2524 int serial_max_hds(void)
2526 return num_serial_hds;
2529 static int parallel_parse(const char *devname)
2531 static int index = 0;
2534 if (strcmp(devname, "none") == 0)
2536 if (index == MAX_PARALLEL_PORTS) {
2537 error_report("too many parallel ports");
2540 snprintf(label, sizeof(label), "parallel%d", index);
2541 parallel_hds[index] = qemu_chr_new(label, devname);
2542 if (!parallel_hds[index]) {
2543 error_report("could not connect parallel device"
2544 " to character backend '%s'", devname);
2551 static int virtcon_parse(const char *devname)
2553 QemuOptsList *device = qemu_find_opts("device");
2554 static int index = 0;
2556 QemuOpts *bus_opts, *dev_opts;
2558 if (strcmp(devname, "none") == 0)
2560 if (index == MAX_VIRTIO_CONSOLES) {
2561 error_report("too many virtio consoles");
2565 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2566 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2568 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2569 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2571 snprintf(label, sizeof(label), "virtcon%d", index);
2572 virtcon_hds[index] = qemu_chr_new(label, devname);
2573 if (!virtcon_hds[index]) {
2574 error_report("could not connect virtio console"
2575 " to character backend '%s'", devname);
2578 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2584 static int debugcon_parse(const char *devname)
2588 if (!qemu_chr_new("debugcon", devname)) {
2591 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2593 error_report("already have a debugcon device");
2596 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2597 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2601 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2603 const MachineClass *mc1 = a, *mc2 = b;
2606 if (mc1->family == NULL) {
2607 if (mc2->family == NULL) {
2608 /* Compare standalone machine types against each other; they sort
2609 * in increasing order.
2611 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2612 object_class_get_name(OBJECT_CLASS(mc2)));
2615 /* Standalone machine types sort after families. */
2619 if (mc2->family == NULL) {
2620 /* Families sort before standalone machine types. */
2624 /* Families sort between each other alphabetically increasingly. */
2625 res = strcmp(mc1->family, mc2->family);
2630 /* Within the same family, machine types sort in decreasing order. */
2631 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2632 object_class_get_name(OBJECT_CLASS(mc1)));
2635 static MachineClass *machine_parse(const char *name)
2637 MachineClass *mc = NULL;
2638 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2641 mc = find_machine(name);
2644 g_slist_free(machines);
2647 if (name && !is_help_option(name)) {
2648 error_report("unsupported machine type");
2649 error_printf("Use -machine help to list supported machines\n");
2651 printf("Supported machines are:\n");
2652 machines = g_slist_sort(machines, machine_class_cmp);
2653 for (el = machines; el; el = el->next) {
2654 MachineClass *mc = el->data;
2656 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2658 printf("%-20s %s%s\n", mc->name, mc->desc,
2659 mc->is_default ? " (default)" : "");
2663 g_slist_free(machines);
2664 exit(!name || !is_help_option(name));
2667 void qemu_add_exit_notifier(Notifier *notify)
2669 notifier_list_add(&exit_notifiers, notify);
2672 void qemu_remove_exit_notifier(Notifier *notify)
2674 notifier_remove(notify);
2677 static void qemu_run_exit_notifiers(void)
2679 notifier_list_notify(&exit_notifiers, NULL);
2682 bool machine_init_done;
2684 void qemu_add_machine_init_done_notifier(Notifier *notify)
2686 notifier_list_add(&machine_init_done_notifiers, notify);
2687 if (machine_init_done) {
2688 notify->notify(notify, NULL);
2692 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2694 notifier_remove(notify);
2697 static void qemu_run_machine_init_done_notifiers(void)
2699 machine_init_done = true;
2700 notifier_list_notify(&machine_init_done_notifiers, NULL);
2703 static const QEMUOption *lookup_opt(int argc, char **argv,
2704 const char **poptarg, int *poptind)
2706 const QEMUOption *popt;
2707 int optind = *poptind;
2708 char *r = argv[optind];
2711 loc_set_cmdline(argv, optind, 1);
2713 /* Treat --foo the same as -foo. */
2716 popt = qemu_options;
2719 error_report("invalid option");
2722 if (!strcmp(popt->name, r + 1))
2726 if (popt->flags & HAS_ARG) {
2727 if (optind >= argc) {
2728 error_report("requires an argument");
2731 optarg = argv[optind++];
2732 loc_set_cmdline(argv, optind - 2, 2);
2743 static MachineClass *select_machine(void)
2745 MachineClass *machine_class = find_default_machine();
2750 loc_push_none(&loc);
2752 opts = qemu_get_machine_opts();
2753 qemu_opts_loc_restore(opts);
2755 optarg = qemu_opt_get(opts, "type");
2757 machine_class = machine_parse(optarg);
2760 if (!machine_class) {
2761 error_report("No machine specified, and there is no default");
2762 error_printf("Use -machine help to list supported machines\n");
2767 return machine_class;
2770 static int machine_set_property(void *opaque,
2771 const char *name, const char *value,
2774 Object *obj = OBJECT(opaque);
2775 Error *local_err = NULL;
2778 if (strcmp(name, "type") == 0) {
2782 qom_name = g_strdup(name);
2783 for (p = qom_name; *p; p++) {
2789 object_property_parse(obj, value, qom_name, &local_err);
2793 error_report_err(local_err);
2802 * Initial object creation happens before all other
2803 * QEMU data types are created. The majority of objects
2804 * can be created at this point. The rng-egd object
2805 * cannot be created here, as it depends on the chardev
2808 static bool object_create_initial(const char *type)
2810 if (g_str_equal(type, "rng-egd") ||
2811 g_str_has_prefix(type, "pr-manager-")) {
2815 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2816 if (g_str_equal(type, "cryptodev-vhost-user")) {
2822 * return false for concrete netfilters since
2823 * they depend on netdevs already existing
2825 if (g_str_equal(type, "filter-buffer") ||
2826 g_str_equal(type, "filter-dump") ||
2827 g_str_equal(type, "filter-mirror") ||
2828 g_str_equal(type, "filter-redirector") ||
2829 g_str_equal(type, "colo-compare") ||
2830 g_str_equal(type, "filter-rewriter") ||
2831 g_str_equal(type, "filter-replay")) {
2835 /* Memory allocation by backends needs to be done
2836 * after configure_accelerator() (due to the tcg_enabled()
2837 * checks at memory_region_init_*()).
2839 * Also, allocation of large amounts of memory may delay
2840 * chardev initialization for too long, and trigger timeouts
2841 * on software that waits for a monitor socket to be created
2844 if (g_str_has_prefix(type, "memory-backend-")) {
2853 * The remainder of object creation happens after the
2854 * creation of chardev, fsdev, net clients and device data types.
2856 static bool object_create_delayed(const char *type)
2858 return !object_create_initial(type);
2862 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2866 const char *mem_str;
2867 const ram_addr_t default_ram_size = mc->default_ram_size;
2868 QemuOpts *opts = qemu_find_opts_singleton("memory");
2871 loc_push_none(&loc);
2872 qemu_opts_loc_restore(opts);
2875 mem_str = qemu_opt_get(opts, "size");
2878 error_report("missing 'size' option value");
2882 sz = qemu_opt_get_size(opts, "size", ram_size);
2884 /* Fix up legacy suffix-less format */
2885 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2886 uint64_t overflow_check = sz;
2889 if ((sz >> 20) != overflow_check) {
2890 error_report("too large 'size' option value");
2896 /* backward compatibility behaviour for case "-m 0" */
2898 sz = default_ram_size;
2901 sz = QEMU_ALIGN_UP(sz, 8192);
2903 if (ram_size != sz) {
2904 error_report("ram size too large");
2908 /* store value for the future use */
2909 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2910 *maxram_size = ram_size;
2912 if (qemu_opt_get(opts, "maxmem")) {
2915 sz = qemu_opt_get_size(opts, "maxmem", 0);
2916 slots = qemu_opt_get_number(opts, "slots", 0);
2917 if (sz < ram_size) {
2918 error_report("invalid value of -m option maxmem: "
2919 "maximum memory size (0x%" PRIx64 ") must be at least "
2920 "the initial memory size (0x" RAM_ADDR_FMT ")",
2923 } else if (slots && sz == ram_size) {
2924 error_report("invalid value of -m option maxmem: "
2925 "memory slots were specified but maximum memory size "
2926 "(0x%" PRIx64 ") is equal to the initial memory size "
2927 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2933 } else if (qemu_opt_get(opts, "slots")) {
2934 error_report("invalid -m option value: missing 'maxmem' option");
2941 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2945 g = g_malloc0(sizeof(*g));
2946 g->driver = qemu_opt_get(opts, "driver");
2947 g->property = qemu_opt_get(opts, "property");
2948 g->value = qemu_opt_get(opts, "value");
2949 g->user_provided = true;
2950 g->errp = &error_fatal;
2951 qdev_prop_register_global(g);
2955 static int qemu_read_default_config_file(void)
2959 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2960 if (ret < 0 && ret != -ENOENT) {
2967 static void user_register_global_props(void)
2969 qemu_opts_foreach(qemu_find_opts("global"),
2970 global_init_func, NULL, NULL);
2974 * Note: we should see that these properties are actually having a
2975 * priority: accel < machine < user. This means e.g. when user
2976 * specifies something in "-global", it'll always be used with highest
2977 * priority than either machine/accelerator compat properties.
2979 static void register_global_properties(MachineState *ms)
2981 accel_register_compat_props(ms->accelerator);
2982 machine_register_compat_props(ms);
2983 user_register_global_props();
2986 int main(int argc, char **argv, char **envp)
2989 int snapshot, linux_boot;
2990 const char *initrd_filename;
2991 const char *kernel_filename, *kernel_cmdline;
2992 const char *boot_order = NULL;
2993 const char *boot_once = NULL;
2995 QemuOpts *opts, *machine_opts;
2996 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2997 QemuOptsList *olist;
3000 const char *loadvm = NULL;
3001 MachineClass *machine_class;
3002 const char *cpu_model;
3003 const char *vga_model = NULL;
3004 const char *qtest_chrdev = NULL;
3005 const char *qtest_log = NULL;
3006 const char *pid_file = NULL;
3007 const char *incoming = NULL;
3008 bool userconfig = true;
3009 bool nographic = false;
3010 int display_remote = 0;
3011 const char *log_mask = NULL;
3012 const char *log_file = NULL;
3013 char *trace_file = NULL;
3014 ram_addr_t maxram_size;
3015 uint64_t ram_slots = 0;
3016 FILE *vmstate_dump_file = NULL;
3017 Error *main_loop_err = NULL;
3019 bool list_data_dirs = false;
3021 typedef struct BlockdevOptions_queue {
3022 BlockdevOptions *bdo;
3024 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3025 } BlockdevOptions_queue;
3026 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3027 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3029 module_call_init(MODULE_INIT_TRACE);
3031 qemu_init_cpu_list();
3032 qemu_init_cpu_loop();
3034 qemu_mutex_lock_iothread();
3036 atexit(qemu_run_exit_notifiers);
3037 error_set_progname(argv[0]);
3038 qemu_init_exec_dir(argv[0]);
3040 module_call_init(MODULE_INIT_QOM);
3042 qemu_add_opts(&qemu_drive_opts);
3043 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3044 qemu_add_drive_opts(&qemu_common_drive_opts);
3045 qemu_add_drive_opts(&qemu_drive_opts);
3046 qemu_add_drive_opts(&bdrv_runtime_opts);
3047 qemu_add_opts(&qemu_chardev_opts);
3048 qemu_add_opts(&qemu_device_opts);
3049 qemu_add_opts(&qemu_netdev_opts);
3050 qemu_add_opts(&qemu_nic_opts);
3051 qemu_add_opts(&qemu_net_opts);
3052 qemu_add_opts(&qemu_rtc_opts);
3053 qemu_add_opts(&qemu_global_opts);
3054 qemu_add_opts(&qemu_mon_opts);
3055 qemu_add_opts(&qemu_trace_opts);
3056 qemu_add_opts(&qemu_option_rom_opts);
3057 qemu_add_opts(&qemu_machine_opts);
3058 qemu_add_opts(&qemu_accel_opts);
3059 qemu_add_opts(&qemu_mem_opts);
3060 qemu_add_opts(&qemu_smp_opts);
3061 qemu_add_opts(&qemu_boot_opts);
3062 qemu_add_opts(&qemu_sandbox_opts);
3063 qemu_add_opts(&qemu_add_fd_opts);
3064 qemu_add_opts(&qemu_object_opts);
3065 qemu_add_opts(&qemu_tpmdev_opts);
3066 qemu_add_opts(&qemu_realtime_opts);
3067 qemu_add_opts(&qemu_msg_opts);
3068 qemu_add_opts(&qemu_name_opts);
3069 qemu_add_opts(&qemu_numa_opts);
3070 qemu_add_opts(&qemu_icount_opts);
3071 qemu_add_opts(&qemu_semihosting_config_opts);
3072 qemu_add_opts(&qemu_fw_cfg_opts);
3073 module_call_init(MODULE_INIT_OPTS);
3076 postcopy_infrastructure_init();
3078 if (qcrypto_init(&err) < 0) {
3079 error_reportf_err(err, "cannot initialize crypto: ");
3082 rtc_clock = QEMU_CLOCK_HOST;
3084 QLIST_INIT (&vm_change_state_head);
3085 os_setup_early_signal_handling();
3092 bdrv_init_with_whitelist();
3096 /* first pass of option parsing */
3098 while (optind < argc) {
3099 if (argv[optind][0] != '-') {
3103 const QEMUOption *popt;
3105 popt = lookup_opt(argc, argv, &optarg, &optind);
3106 switch (popt->index) {
3107 case QEMU_OPTION_nodefconfig:
3108 case QEMU_OPTION_nouserconfig:
3116 if (qemu_read_default_config_file() < 0) {
3121 /* second pass of option parsing */
3126 if (argv[optind][0] != '-') {
3127 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3129 const QEMUOption *popt;
3131 popt = lookup_opt(argc, argv, &optarg, &optind);
3132 if (!(popt->arch_mask & arch_type)) {
3133 error_report("Option not supported for this target");
3136 switch(popt->index) {
3137 case QEMU_OPTION_cpu:
3138 /* hw initialization will check this */
3141 case QEMU_OPTION_hda:
3142 case QEMU_OPTION_hdb:
3143 case QEMU_OPTION_hdc:
3144 case QEMU_OPTION_hdd:
3145 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3148 case QEMU_OPTION_blockdev:
3151 BlockdevOptions_queue *bdo;
3153 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3155 error_report_err(err);
3159 bdo = g_new(BlockdevOptions_queue, 1);
3160 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3163 loc_save(&bdo->loc);
3164 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3167 case QEMU_OPTION_drive:
3168 if (drive_def(optarg) == NULL) {
3172 case QEMU_OPTION_set:
3173 if (qemu_set_option(optarg) != 0)
3176 case QEMU_OPTION_global:
3177 if (qemu_global_option(optarg) != 0)
3180 case QEMU_OPTION_mtdblock:
3181 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3183 case QEMU_OPTION_sd:
3184 drive_add(IF_SD, -1, optarg, SD_OPTS);
3186 case QEMU_OPTION_pflash:
3187 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3189 case QEMU_OPTION_snapshot:
3192 case QEMU_OPTION_numa:
3193 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3199 case QEMU_OPTION_display:
3200 parse_display(optarg);
3202 case QEMU_OPTION_nographic:
3203 olist = qemu_find_opts("machine");
3204 qemu_opts_parse_noisily(olist, "graphics=off", false);
3206 dpy.type = DISPLAY_TYPE_NONE;
3208 case QEMU_OPTION_curses:
3209 #ifdef CONFIG_CURSES
3210 dpy.type = DISPLAY_TYPE_CURSES;
3212 error_report("curses support is disabled");
3216 case QEMU_OPTION_portrait:
3217 graphic_rotate = 90;
3219 case QEMU_OPTION_rotate:
3220 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3221 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3222 graphic_rotate != 180 && graphic_rotate != 270) {
3223 error_report("only 90, 180, 270 deg rotation is available");
3227 case QEMU_OPTION_kernel:
3228 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3231 case QEMU_OPTION_initrd:
3232 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3235 case QEMU_OPTION_append:
3236 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3239 case QEMU_OPTION_dtb:
3240 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3243 case QEMU_OPTION_cdrom:
3244 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3246 case QEMU_OPTION_boot:
3247 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3253 case QEMU_OPTION_fda:
3254 case QEMU_OPTION_fdb:
3255 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3258 case QEMU_OPTION_no_fd_bootchk:
3261 case QEMU_OPTION_netdev:
3263 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3267 case QEMU_OPTION_nic:
3269 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3273 case QEMU_OPTION_net:
3275 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3279 #ifdef CONFIG_LIBISCSI
3280 case QEMU_OPTION_iscsi:
3281 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3289 case QEMU_OPTION_tftp:
3290 error_report("The -tftp option is deprecated. "
3291 "Please use '-netdev user,tftp=...' instead.");
3292 legacy_tftp_prefix = optarg;
3294 case QEMU_OPTION_bootp:
3295 error_report("The -bootp option is deprecated. "
3296 "Please use '-netdev user,bootfile=...' instead.");
3297 legacy_bootp_filename = optarg;
3299 case QEMU_OPTION_redir:
3300 error_report("The -redir option is deprecated. "
3301 "Please use '-netdev user,hostfwd=...' instead.");
3302 if (net_slirp_redir(optarg) < 0)
3306 case QEMU_OPTION_bt:
3307 add_device_config(DEV_BT, optarg);
3309 case QEMU_OPTION_audio_help:
3313 case QEMU_OPTION_soundhw:
3314 select_soundhw (optarg);
3319 case QEMU_OPTION_version:
3324 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3331 case QEMU_OPTION_tpmdev:
3332 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3337 case QEMU_OPTION_mempath:
3340 case QEMU_OPTION_mem_prealloc:
3349 case QEMU_OPTION_DFILTER:
3350 qemu_set_dfilter_ranges(optarg, &error_fatal);
3353 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3355 case QEMU_OPTION_gdb:
3356 add_device_config(DEV_GDB, optarg);
3359 if (is_help_option(optarg)) {
3360 list_data_dirs = true;
3362 qemu_add_data_dir(optarg);
3365 case QEMU_OPTION_bios:
3366 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3369 case QEMU_OPTION_singlestep:
3376 keyboard_layout = optarg;
3378 case QEMU_OPTION_localtime:
3380 warn_report("This option is deprecated, "
3381 "use '-rtc base=localtime' instead.");
3383 case QEMU_OPTION_vga:
3392 w = strtol(p, (char **)&p, 10);
3395 error_report("invalid resolution or depth");
3401 h = strtol(p, (char **)&p, 10);
3406 depth = strtol(p, (char **)&p, 10);
3407 if (depth != 8 && depth != 15 && depth != 16 &&
3408 depth != 24 && depth != 32)
3410 } else if (*p == '\0') {
3411 depth = graphic_depth;
3418 graphic_depth = depth;
3421 case QEMU_OPTION_echr:
3424 term_escape_char = strtol(optarg, &r, 0);
3426 printf("Bad argument to echr\n");
3429 case QEMU_OPTION_monitor:
3430 default_monitor = 0;
3431 if (strncmp(optarg, "none", 4)) {
3432 monitor_parse(optarg, "readline", false);
3435 case QEMU_OPTION_qmp:
3436 monitor_parse(optarg, "control", false);
3437 default_monitor = 0;
3439 case QEMU_OPTION_qmp_pretty:
3440 monitor_parse(optarg, "control", true);
3441 default_monitor = 0;
3443 case QEMU_OPTION_mon:
3444 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3449 default_monitor = 0;
3451 case QEMU_OPTION_chardev:
3452 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3458 case QEMU_OPTION_fsdev:
3459 olist = qemu_find_opts("fsdev");
3461 error_report("fsdev support is disabled");
3464 opts = qemu_opts_parse_noisily(olist, optarg, true);
3469 case QEMU_OPTION_virtfs: {
3472 const char *writeout, *sock_fd, *socket, *path, *security_model;
3474 olist = qemu_find_opts("virtfs");
3476 error_report("virtfs support is disabled");
3479 opts = qemu_opts_parse_noisily(olist, optarg, true);
3484 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3485 qemu_opt_get(opts, "mount_tag") == NULL) {
3486 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3489 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3490 qemu_opts_id(opts) ?:
3491 qemu_opt_get(opts, "mount_tag"),
3494 error_report("duplicate or invalid fsdev id: %s",
3495 qemu_opt_get(opts, "mount_tag"));
3499 writeout = qemu_opt_get(opts, "writeout");
3501 #ifdef CONFIG_SYNC_FILE_RANGE
3502 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3504 error_report("writeout=immediate not supported "
3505 "on this platform");
3509 qemu_opt_set(fsdev, "fsdriver",
3510 qemu_opt_get(opts, "fsdriver"), &error_abort);
3511 path = qemu_opt_get(opts, "path");
3513 qemu_opt_set(fsdev, "path", path, &error_abort);
3515 security_model = qemu_opt_get(opts, "security_model");
3516 if (security_model) {
3517 qemu_opt_set(fsdev, "security_model", security_model,
3520 socket = qemu_opt_get(opts, "socket");
3522 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3524 sock_fd = qemu_opt_get(opts, "sock_fd");
3526 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3529 qemu_opt_set_bool(fsdev, "readonly",
3530 qemu_opt_get_bool(opts, "readonly", 0),
3532 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3534 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3535 qemu_opt_set(device, "fsdev",
3536 qemu_opts_id(fsdev), &error_abort);
3537 qemu_opt_set(device, "mount_tag",
3538 qemu_opt_get(opts, "mount_tag"), &error_abort);
3541 case QEMU_OPTION_virtfs_synth: {
3545 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3548 error_report("duplicate option: %s", "virtfs_synth");
3551 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3553 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3555 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3556 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3557 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3560 case QEMU_OPTION_serial:
3561 add_device_config(DEV_SERIAL, optarg);
3563 if (strncmp(optarg, "mon:", 4) == 0) {
3564 default_monitor = 0;
3567 case QEMU_OPTION_watchdog:
3569 error_report("only one watchdog option may be given");
3574 case QEMU_OPTION_watchdog_action:
3575 if (select_watchdog_action(optarg) == -1) {
3576 error_report("unknown -watchdog-action parameter");
3580 case QEMU_OPTION_virtiocon:
3581 warn_report("This option is deprecated, "
3582 "use '-device virtconsole' instead");
3583 add_device_config(DEV_VIRTCON, optarg);
3584 default_virtcon = 0;
3585 if (strncmp(optarg, "mon:", 4) == 0) {
3586 default_monitor = 0;
3589 case QEMU_OPTION_parallel:
3590 add_device_config(DEV_PARALLEL, optarg);
3591 default_parallel = 0;
3592 if (strncmp(optarg, "mon:", 4) == 0) {
3593 default_monitor = 0;
3596 case QEMU_OPTION_debugcon:
3597 add_device_config(DEV_DEBUGCON, optarg);
3599 case QEMU_OPTION_loadvm:
3602 case QEMU_OPTION_full_screen:
3603 dpy.has_full_screen = true;
3604 dpy.full_screen = true;
3606 case QEMU_OPTION_no_frame:
3607 g_printerr("The -no-frame switch is deprecated, and will be\n"
3608 "removed in a future release.\n");
3611 case QEMU_OPTION_alt_grab:
3614 case QEMU_OPTION_ctrl_grab:
3617 case QEMU_OPTION_no_quit:
3618 dpy.has_window_close = true;
3619 dpy.window_close = false;
3621 case QEMU_OPTION_sdl:
3623 dpy.type = DISPLAY_TYPE_SDL;
3626 error_report("SDL support is disabled");
3629 case QEMU_OPTION_pidfile:
3632 case QEMU_OPTION_win2k_hack:
3633 win2k_install_hack = 1;
3635 case QEMU_OPTION_rtc_td_hack: {
3636 static GlobalProperty slew_lost_ticks = {
3637 .driver = "mc146818rtc",
3638 .property = "lost_tick_policy",
3642 qdev_prop_register_global(&slew_lost_ticks);
3643 warn_report("This option is deprecated, "
3644 "use '-rtc driftfix=slew' instead.");
3647 case QEMU_OPTION_acpitable:
3648 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3653 acpi_table_add(opts, &error_fatal);
3655 case QEMU_OPTION_smbios:
3656 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3661 smbios_entry_add(opts, &error_fatal);
3663 case QEMU_OPTION_fwcfg:
3664 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3670 case QEMU_OPTION_enable_kvm:
3671 olist = qemu_find_opts("machine");
3672 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3674 case QEMU_OPTION_enable_hax:
3675 olist = qemu_find_opts("machine");
3676 qemu_opts_parse_noisily(olist, "accel=hax", false);
3679 case QEMU_OPTION_machine:
3680 olist = qemu_find_opts("machine");
3681 opts = qemu_opts_parse_noisily(olist, optarg, true);
3686 case QEMU_OPTION_no_kvm:
3687 olist = qemu_find_opts("machine");
3688 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3690 case QEMU_OPTION_accel:
3691 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3693 optarg = qemu_opt_get(accel_opts, "accel");
3694 if (!optarg || is_help_option(optarg)) {
3695 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3698 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3699 false, &error_abort);
3700 qemu_opt_set(opts, "accel", optarg, &error_abort);
3702 case QEMU_OPTION_usb:
3703 olist = qemu_find_opts("machine");
3704 qemu_opts_parse_noisily(olist, "usb=on", false);
3706 case QEMU_OPTION_usbdevice:
3707 error_report("'-usbdevice' is deprecated, please use "
3708 "'-device usb-...' instead");
3709 olist = qemu_find_opts("machine");
3710 qemu_opts_parse_noisily(olist, "usb=on", false);
3711 add_device_config(DEV_USB, optarg);
3713 case QEMU_OPTION_device:
3714 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3719 case QEMU_OPTION_smp:
3720 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3725 case QEMU_OPTION_vnc:
3726 vnc_parse(optarg, &error_fatal);
3728 case QEMU_OPTION_no_acpi:
3731 case QEMU_OPTION_no_hpet:
3734 case QEMU_OPTION_balloon:
3735 if (balloon_parse(optarg) < 0) {
3736 error_report("unknown -balloon argument %s", optarg);
3740 case QEMU_OPTION_no_reboot:
3743 case QEMU_OPTION_no_shutdown:
3746 case QEMU_OPTION_show_cursor:
3749 case QEMU_OPTION_uuid:
3750 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3751 error_report("failed to parse UUID string: wrong format");
3754 qemu_uuid_set = true;
3756 case QEMU_OPTION_option_rom:
3757 if (nb_option_roms >= MAX_OPTION_ROMS) {
3758 error_report("too many option ROMs");
3761 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3766 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3767 option_rom[nb_option_roms].bootindex =
3768 qemu_opt_get_number(opts, "bootindex", -1);
3769 if (!option_rom[nb_option_roms].name) {
3770 error_report("Option ROM file is not specified");
3775 case QEMU_OPTION_semihosting:
3776 semihosting.enabled = true;
3777 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3779 case QEMU_OPTION_semihosting_config:
3780 semihosting.enabled = true;
3781 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3784 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3786 const char *target = qemu_opt_get(opts, "target");
3787 if (target != NULL) {
3788 if (strcmp("native", target) == 0) {
3789 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3790 } else if (strcmp("gdb", target) == 0) {
3791 semihosting.target = SEMIHOSTING_TARGET_GDB;
3792 } else if (strcmp("auto", target) == 0) {
3793 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3795 error_report("unsupported semihosting-config %s",
3800 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3802 /* Set semihosting argument count and vector */
3803 qemu_opt_foreach(opts, add_semihosting_arg,
3804 &semihosting, NULL);
3806 error_report("unsupported semihosting-config %s", optarg);
3810 case QEMU_OPTION_name:
3811 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3817 case QEMU_OPTION_prom_env:
3818 if (nb_prom_envs >= MAX_PROM_ENVS) {
3819 error_report("too many prom variables");
3822 prom_envs[nb_prom_envs] = optarg;
3825 case QEMU_OPTION_old_param:
3828 case QEMU_OPTION_clock:
3829 /* Clock options no longer exist. Keep this option for
3830 * backward compatibility.
3833 case QEMU_OPTION_startdate:
3834 warn_report("This option is deprecated, use '-rtc base=' instead.");
3835 configure_rtc_date_offset(optarg, 1);
3837 case QEMU_OPTION_rtc:
3838 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3843 configure_rtc(opts);
3845 case QEMU_OPTION_tb_size:
3847 error_report("TCG is disabled");
3850 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3851 error_report("Invalid argument to -tb-size");
3855 case QEMU_OPTION_icount:
3856 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3862 case QEMU_OPTION_incoming:
3864 runstate_set(RUN_STATE_INMIGRATE);
3868 case QEMU_OPTION_only_migratable:
3870 * TODO: we can remove this option one day, and we
3873 * "-global migration.only-migratable=true"
3875 qemu_global_option("migration.only-migratable=true");
3877 case QEMU_OPTION_nodefaults:
3880 case QEMU_OPTION_xen_domid:
3881 if (!(xen_available())) {
3882 error_report("Option not supported for this target");
3885 xen_domid = atoi(optarg);
3887 case QEMU_OPTION_xen_create:
3888 if (!(xen_available())) {
3889 error_report("Option not supported for this target");
3892 xen_mode = XEN_CREATE;
3894 case QEMU_OPTION_xen_attach:
3895 if (!(xen_available())) {
3896 error_report("Option not supported for this target");
3899 xen_mode = XEN_ATTACH;
3901 case QEMU_OPTION_xen_domid_restrict:
3902 if (!(xen_available())) {
3903 error_report("Option not supported for this target");
3906 xen_domid_restrict = true;
3908 case QEMU_OPTION_trace:
3910 trace_file = trace_opt_parse(optarg);
3912 case QEMU_OPTION_readconfig:
3914 int ret = qemu_read_config_file(optarg);
3916 error_report("read config %s: %s", optarg,
3922 case QEMU_OPTION_spice:
3923 olist = qemu_find_opts("spice");
3925 error_report("spice support is disabled");
3928 opts = qemu_opts_parse_noisily(olist, optarg, false);
3934 case QEMU_OPTION_writeconfig:
3937 if (strcmp(optarg, "-") == 0) {
3940 fp = fopen(optarg, "w");
3942 error_report("open %s: %s", optarg,
3947 qemu_config_write(fp);
3953 case QEMU_OPTION_qtest:
3954 qtest_chrdev = optarg;
3956 case QEMU_OPTION_qtest_log:
3959 case QEMU_OPTION_sandbox:
3960 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3966 case QEMU_OPTION_add_fd:
3968 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3974 error_report("File descriptor passing is disabled on this "
3979 case QEMU_OPTION_object:
3980 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3986 case QEMU_OPTION_realtime:
3987 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3992 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3994 case QEMU_OPTION_msg:
3995 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4000 configure_msg(opts);
4002 case QEMU_OPTION_dump_vmstate:
4003 if (vmstate_dump_file) {
4004 error_report("only one '-dump-vmstate' "
4005 "option may be given");
4008 vmstate_dump_file = fopen(optarg, "w");
4009 if (vmstate_dump_file == NULL) {
4010 error_report("open %s: %s", optarg, strerror(errno));
4014 case QEMU_OPTION_nodefconfig:
4015 case QEMU_OPTION_nouserconfig:
4016 /* Nothing to be parsed here. Especially, do not error out below. */
4019 if (os_parse_cmd_args(popt->index, optarg)) {
4020 error_report("Option not supported in this build");
4027 * Clear error location left behind by the loop.
4028 * Best done right after the loop. Do not insert code here!
4032 replay_configure(icount_opts);
4034 machine_class = select_machine();
4036 set_memory_options(&ram_slots, &maxram_size, machine_class);
4039 rcu_disable_atfork();
4041 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4042 error_report("could not acquire pid file: %s", strerror(errno));
4046 if (qemu_init_main_loop(&main_loop_err)) {
4047 error_report_err(main_loop_err);
4051 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4052 parse_sandbox, NULL, NULL)) {
4056 if (qemu_opts_foreach(qemu_find_opts("name"),
4057 parse_name, NULL, NULL)) {
4062 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4063 parse_add_fd, NULL, NULL)) {
4067 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4068 cleanup_add_fd, NULL, NULL)) {
4073 current_machine = MACHINE(object_new(object_class_get_name(
4074 OBJECT_CLASS(machine_class))));
4075 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4078 object_property_add_child(object_get_root(), "machine",
4079 OBJECT(current_machine), &error_abort);
4081 if (machine_class->minimum_page_bits) {
4082 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4083 /* This would be a board error: specifying a minimum smaller than
4084 * a target's compile-time fixed setting.
4086 g_assert_not_reached();
4090 cpu_exec_init_all();
4092 if (machine_class->hw_version) {
4093 qemu_set_hw_version(machine_class->hw_version);
4096 if (cpu_model && is_help_option(cpu_model)) {
4097 list_cpus(stdout, &fprintf, cpu_model);
4101 if (!trace_init_backends()) {
4104 trace_init_file(trace_file);
4106 /* Open the logfile at this point and set the log mask if necessary.
4109 qemu_set_log_filename(log_file, &error_fatal);
4114 mask = qemu_str_to_log_mask(log_mask);
4116 qemu_print_log_usage(stdout);
4124 /* add configured firmware directories */
4125 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4126 for (i = 0; dirs[i] != NULL; i++) {
4127 qemu_add_data_dir(dirs[i]);
4131 /* try to find datadir relative to the executable path */
4132 dir = os_find_datadir();
4133 qemu_add_data_dir(dir);
4136 /* add the datadir specified when building */
4137 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4139 /* -L help lists the data directories and exits. */
4140 if (list_data_dirs) {
4141 for (i = 0; i < data_dir_idx; i++) {
4142 printf("%s\n", data_dir[i]);
4147 /* machine_class: default to UP */
4148 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4149 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4150 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4152 /* default to machine_class->default_cpus */
4153 smp_cpus = machine_class->default_cpus;
4154 max_cpus = machine_class->default_cpus;
4156 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4158 /* sanity-check smp_cpus and max_cpus against machine_class */
4159 if (smp_cpus < machine_class->min_cpus) {
4160 error_report("Invalid SMP CPUs %d. The min CPUs "
4161 "supported by machine '%s' is %d", smp_cpus,
4162 machine_class->name, machine_class->min_cpus);
4165 if (max_cpus > machine_class->max_cpus) {
4166 error_report("Invalid SMP CPUs %d. The max CPUs "
4167 "supported by machine '%s' is %d", max_cpus,
4168 machine_class->name, machine_class->max_cpus);
4173 * Get the default machine options from the machine if it is not already
4174 * specified either by the configuration file or by the command line.
4176 if (machine_class->default_machine_opts) {
4177 qemu_opts_set_defaults(qemu_find_opts("machine"),
4178 machine_class->default_machine_opts, 0);
4181 qemu_opts_foreach(qemu_find_opts("device"),
4182 default_driver_check, NULL, NULL);
4183 qemu_opts_foreach(qemu_find_opts("global"),
4184 default_driver_check, NULL, NULL);
4186 if (!vga_model && !default_vga) {
4187 vga_interface_type = VGA_DEVICE;
4189 if (!has_defaults || machine_class->no_serial) {
4192 if (!has_defaults || machine_class->no_parallel) {
4193 default_parallel = 0;
4195 if (!has_defaults || !machine_class->use_virtcon) {
4196 default_virtcon = 0;
4198 if (!has_defaults || machine_class->no_floppy) {
4201 if (!has_defaults || machine_class->no_cdrom) {
4204 if (!has_defaults || machine_class->no_sdcard) {
4207 if (!has_defaults) {
4208 default_monitor = 0;
4213 if (is_daemonized()) {
4214 /* According to documentation and historically, -nographic redirects
4215 * serial port, parallel port and monitor to stdio, which does not work
4216 * with -daemonize. We can redirect these to null instead, but since
4217 * -nographic is legacy, let's just error out.
4218 * We disallow -nographic only if all other ports are not redirected
4219 * explicitly, to not break existing legacy setups which uses
4220 * -nographic _and_ redirects all ports explicitly - this is valid
4221 * usage, -nographic is just a no-op in this case.
4224 && (default_parallel || default_serial
4225 || default_monitor || default_virtcon)) {
4226 error_report("-nographic cannot be used with -daemonize");
4229 #ifdef CONFIG_CURSES
4230 if (dpy.type == DISPLAY_TYPE_CURSES) {
4231 error_report("curses display cannot be used with -daemonize");
4238 if (default_parallel)
4239 add_device_config(DEV_PARALLEL, "null");
4240 if (default_serial && default_monitor) {
4241 add_device_config(DEV_SERIAL, "mon:stdio");
4242 } else if (default_virtcon && default_monitor) {
4243 add_device_config(DEV_VIRTCON, "mon:stdio");
4246 add_device_config(DEV_SERIAL, "stdio");
4247 if (default_virtcon)
4248 add_device_config(DEV_VIRTCON, "stdio");
4249 if (default_monitor)
4250 monitor_parse("stdio", "readline", false);
4254 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4255 if (default_parallel)
4256 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4257 if (default_monitor)
4258 monitor_parse("vc:80Cx24C", "readline", false);
4259 if (default_virtcon)
4260 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4263 #if defined(CONFIG_VNC)
4264 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4268 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4269 if (!qemu_display_find_default(&dpy)) {
4270 dpy.type = DISPLAY_TYPE_NONE;
4271 #if defined(CONFIG_VNC)
4272 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4276 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4277 dpy.type = DISPLAY_TYPE_NONE;
4280 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4281 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4282 "for SDL, ignoring option");
4284 if (dpy.has_window_close &&
4285 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4286 error_report("-no-quit is only valid for GTK and SDL, "
4290 qemu_display_early_init(&dpy);
4291 qemu_console_early_init();
4293 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4294 #if defined(CONFIG_OPENGL)
4295 error_report("OpenGL is not supported by the display");
4297 error_report("OpenGL support is disabled");
4305 if (qemu_opts_foreach(qemu_find_opts("object"),
4306 user_creatable_add_opts_foreach,
4307 object_create_initial, NULL)) {
4311 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4312 chardev_init_func, NULL, NULL)) {
4316 #ifdef CONFIG_VIRTFS
4317 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4318 fsdev_init_func, NULL, NULL)) {
4323 if (qemu_opts_foreach(qemu_find_opts("device"),
4324 device_help_func, NULL, NULL)) {
4328 machine_opts = qemu_get_machine_opts();
4329 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4331 object_unref(OBJECT(current_machine));
4335 configure_accelerator(current_machine);
4338 * Register all the global properties, including accel properties,
4339 * machine properties, and user-specified ones.
4341 register_global_properties(current_machine);
4344 * Migration object can only be created after global properties
4345 * are applied correctly.
4347 migration_object_init();
4350 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4353 machine_opts = qemu_get_machine_opts();
4354 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4355 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4356 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4357 bios_name = qemu_opt_get(machine_opts, "firmware");
4359 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4361 boot_order = qemu_opt_get(opts, "order");
4363 validate_bootdevices(boot_order, &error_fatal);
4366 boot_once = qemu_opt_get(opts, "once");
4368 validate_bootdevices(boot_once, &error_fatal);
4371 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4372 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4376 boot_order = machine_class->default_boot_order;
4379 if (!kernel_cmdline) {
4380 kernel_cmdline = "";
4381 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4384 linux_boot = (kernel_filename != NULL);
4386 if (!linux_boot && *kernel_cmdline != '\0') {
4387 error_report("-append only allowed with -kernel option");
4391 if (!linux_boot && initrd_filename != NULL) {
4392 error_report("-initrd only allowed with -kernel option");
4396 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4397 /* fall back to the -kernel/-append */
4398 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4401 os_set_line_buffering();
4403 /* spice needs the timers to be initialized by this point */
4408 if (!tcg_enabled()) {
4409 error_report("-icount is not allowed with hardware virtualization");
4412 configure_icount(icount_opts, &error_abort);
4413 qemu_opts_del(icount_opts);
4416 if (tcg_enabled()) {
4417 qemu_tcg_configure(accel_opts, &error_fatal);
4421 QemuOptsList *net = qemu_find_opts("net");
4422 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4424 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4430 if (net_init_clients(&err) < 0) {
4431 error_report_err(err);
4435 if (qemu_opts_foreach(qemu_find_opts("object"),
4436 user_creatable_add_opts_foreach,
4437 object_create_delayed, NULL)) {
4441 if (tpm_init() < 0) {
4445 /* init the bluetooth world */
4446 if (foreach_device_config(DEV_BT, bt_parse))
4449 if (!xen_enabled()) {
4450 /* On 32-bit hosts, QEMU is limited by virtual address space */
4451 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4452 error_report("at most 2047 MB RAM can be simulated");
4459 dirty_bitmap_mig_init();
4461 /* If the currently selected machine wishes to override the units-per-bus
4462 * property of its default HBA interface type, do so now. */
4463 if (machine_class->units_per_default_bus) {
4464 override_max_devs(machine_class->block_default_type,
4465 machine_class->units_per_default_bus);
4468 /* open the virtual block devices */
4469 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4470 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4472 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4473 loc_push_restore(&bdo->loc);
4474 qmp_blockdev_add(bdo->bdo, &error_fatal);
4476 qapi_free_BlockdevOptions(bdo->bdo);
4479 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4480 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4483 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4484 &machine_class->block_default_type, NULL)) {
4488 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4490 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4491 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4494 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4495 * depends on configure_accelerator() above.
4497 monitor_init_globals();
4499 if (qemu_opts_foreach(qemu_find_opts("mon"),
4500 mon_init_func, NULL, NULL)) {
4504 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4506 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4508 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4510 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4513 /* If no default VGA is requested, the default is "none". */
4515 if (machine_class->default_display) {
4516 vga_model = machine_class->default_display;
4517 } else if (vga_interface_available(VGA_CIRRUS)) {
4518 vga_model = "cirrus";
4519 } else if (vga_interface_available(VGA_STD)) {
4524 select_vgahw(vga_model);
4528 i = select_watchdog(watchdog);
4530 exit (i == 1 ? 1 : 0);
4533 /* This checkpoint is required by replay to separate prior clock
4534 reading from the other reads, because timer polling functions query
4535 clock values from the log. */
4536 replay_checkpoint(CHECKPOINT_INIT);
4537 qdev_machine_init();
4539 current_machine->ram_size = ram_size;
4540 current_machine->maxram_size = maxram_size;
4541 current_machine->ram_slots = ram_slots;
4542 current_machine->boot_order = boot_order;
4544 /* parse features once if machine provides default cpu_type */
4545 current_machine->cpu_type = machine_class->default_cpu_type;
4547 current_machine->cpu_type = parse_cpu_model(cpu_model);
4549 parse_numa_opts(current_machine);
4551 machine_run_board_init(current_machine);
4557 if (hax_enabled()) {
4561 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4562 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4566 /* init USB devices */
4567 if (machine_usb(current_machine)) {
4568 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4572 /* Check if IGD GFX passthrough. */
4575 /* init generic devices */
4576 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4577 if (qemu_opts_foreach(qemu_find_opts("device"),
4578 device_init_func, NULL, NULL)) {
4582 cpu_synchronize_all_post_init();
4584 rom_reset_order_override();
4586 /* Did we create any drives that we failed to create a device for? */
4587 drive_check_orphaned();
4589 /* Don't warn about the default network setup that you get if
4590 * no command line -net or -netdev options are specified. There
4591 * are two cases that we would otherwise complain about:
4592 * (1) board doesn't support a NIC but the implicit "-net nic"
4594 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4595 * sets up a nic that isn't connected to anything.
4598 net_check_clients();
4603 qemu_boot_set(boot_once, &error_fatal);
4604 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4607 /* init local displays */
4608 ds = init_displaystate();
4609 qemu_display_init(ds, &dpy);
4611 /* must be after terminal init, SDL library changes signal handlers */
4612 os_setup_signal_handling();
4614 /* init remote displays */
4616 qemu_opts_foreach(qemu_find_opts("vnc"),
4617 vnc_init_func, NULL, NULL);
4621 qemu_spice_display_init();
4624 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4628 qdev_machine_creation_done();
4630 /* TODO: once all bus devices are qdevified, this should be done
4631 * when bus is created by qdev.c */
4632 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4633 qemu_run_machine_init_done_notifiers();
4635 if (rom_check_and_register_reset() != 0) {
4636 error_report("rom check and register reset failed");
4642 /* This checkpoint is required by replay to separate prior clock
4643 reading from the other reads, because timer polling functions query
4644 clock values from the log. */
4645 replay_checkpoint(CHECKPOINT_RESET);
4646 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4647 register_global_state();
4648 if (replay_mode != REPLAY_MODE_NONE) {
4649 replay_vmstate_init();
4650 } else if (loadvm) {
4651 Error *local_err = NULL;
4652 if (load_snapshot(loadvm, &local_err) < 0) {
4653 error_report_err(local_err);
4658 qdev_prop_check_globals();
4659 if (vmstate_dump_file) {
4661 dump_vmstate_json_to_file(vmstate_dump_file);
4666 Error *local_err = NULL;
4667 qemu_start_incoming_migration(incoming, &local_err);
4669 error_reportf_err(local_err, "-incoming %s: ", incoming);
4672 } else if (autostart) {
4676 accel_setup_post(current_machine);
4681 gdbserver_cleanup();
4683 /* No more vcpu or device emulation activity beyond this point */
4686 job_cancel_sync_all();
4691 /* vhost-user must be cleaned up before chardevs. */
4697 user_creatable_cleanup();
4698 migration_object_finalize();
4699 /* TODO: unref root container, check all devices are ok */