4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
30 #include "sysemu/seccomp.h"
33 #if defined(CONFIG_VDE)
34 #include <libvdeplug.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/i386/pc.h"
63 #include "hw/isa/isa.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/smbios/smbios.h"
67 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "sysemu/char.h"
82 #include "qemu/bitmap.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/block.h"
87 #include "sysemu/tpm.h"
88 #include "sysemu/dma.h"
89 #include "audio/audio.h"
90 #include "migration/migration.h"
91 #include "sysemu/cpus.h"
92 #include "sysemu/kvm.h"
93 #include "qapi/qmp/qjson.h"
94 #include "qemu/option.h"
95 #include "qemu/config-file.h"
96 #include "qemu-options.h"
97 #include "qmp-commands.h"
98 #include "qemu/main-loop.h"
100 #include "fsdev/qemu-fsdev.h"
102 #include "sysemu/qtest.h"
104 #include "disas/disas.h"
107 #include "slirp/libslirp.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/cpus.h"
113 #include "sysemu/arch_init.h"
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "qapi-event.h"
120 #include "exec/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qmp/qerror.h"
125 #define MAX_VIRTIO_CONSOLES 1
126 #define MAX_SCLP_CONSOLES 1
128 static const char *data_dir[16];
129 static int data_dir_idx;
130 const char *bios_name = NULL;
131 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
132 int request_opengl = -1;
134 const char* keyboard_layout = NULL;
136 const char *mem_path = NULL;
137 int mem_prealloc = 0; /* force preallocation of physical target memory */
138 bool enable_mlock = false;
140 NICInfo nd_table[MAX_NICS];
142 static int rtc_utc = 1;
143 static int rtc_date_offset = -1; /* -1 means no change */
144 QEMUClockType rtc_clock;
145 int vga_interface_type = VGA_NONE;
146 static int full_screen = 0;
147 static int no_frame = 0;
149 static bool grab_on_hover;
150 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
151 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
152 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
153 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
154 int win2k_install_hack = 0;
160 int acpi_enabled = 1;
163 static int no_reboot;
166 int graphic_rotate = 0;
167 const char *watchdog;
168 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
171 const char *qemu_name;
174 unsigned int nb_prom_envs = 0;
175 const char *prom_envs[MAX_PROM_ENVS];
178 uint8_t *boot_splash_filedata;
179 size_t boot_splash_filedata_size;
180 uint8_t qemu_extra_params_fw[2];
182 int icount_align_option;
184 /* The bytes in qemu_uuid[] are in the order specified by RFC4122, _not_ in the
185 * little-endian "wire format" described in the SMBIOS 2.6 specification.
187 uint8_t qemu_uuid[16];
190 static NotifierList exit_notifiers =
191 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
193 static NotifierList machine_init_done_notifiers =
194 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
198 enum xen_mode xen_mode = XEN_EMULATE;
200 static int has_defaults = 1;
201 static int default_serial = 1;
202 static int default_parallel = 1;
203 static int default_virtcon = 1;
204 static int default_sclp = 1;
205 static int default_monitor = 1;
206 static int default_floppy = 1;
207 static int default_cdrom = 1;
208 static int default_sdcard = 1;
209 static int default_vga = 1;
210 static int default_net = 1;
216 { .driver = "isa-serial", .flag = &default_serial },
217 { .driver = "isa-parallel", .flag = &default_parallel },
218 { .driver = "isa-fdc", .flag = &default_floppy },
219 { .driver = "ide-cd", .flag = &default_cdrom },
220 { .driver = "ide-hd", .flag = &default_cdrom },
221 { .driver = "ide-drive", .flag = &default_cdrom },
222 { .driver = "scsi-cd", .flag = &default_cdrom },
223 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
224 { .driver = "virtio-serial", .flag = &default_virtcon },
225 { .driver = "VGA", .flag = &default_vga },
226 { .driver = "isa-vga", .flag = &default_vga },
227 { .driver = "cirrus-vga", .flag = &default_vga },
228 { .driver = "isa-cirrus-vga", .flag = &default_vga },
229 { .driver = "vmware-svga", .flag = &default_vga },
230 { .driver = "qxl-vga", .flag = &default_vga },
231 { .driver = "virtio-vga", .flag = &default_vga },
234 static QemuOptsList qemu_rtc_opts = {
236 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
240 .type = QEMU_OPT_STRING,
243 .type = QEMU_OPT_STRING,
246 .type = QEMU_OPT_STRING,
248 { /* end of list */ }
252 static QemuOptsList qemu_sandbox_opts = {
254 .implied_opt_name = "enable",
255 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
259 .type = QEMU_OPT_BOOL,
261 { /* end of list */ }
265 static QemuOptsList qemu_trace_opts = {
267 .implied_opt_name = "enable",
268 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
272 .type = QEMU_OPT_STRING,
276 .type = QEMU_OPT_STRING,
279 .type = QEMU_OPT_STRING,
281 { /* end of list */ }
285 static QemuOptsList qemu_option_rom_opts = {
286 .name = "option-rom",
287 .implied_opt_name = "romfile",
288 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
292 .type = QEMU_OPT_NUMBER,
295 .type = QEMU_OPT_STRING,
297 { /* end of list */ }
301 static QemuOptsList qemu_machine_opts = {
303 .implied_opt_name = "type",
305 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
308 * no elements => accept any
309 * sanity checking will happen later
310 * when setting machine properties
316 static QemuOptsList qemu_boot_opts = {
318 .implied_opt_name = "order",
320 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
324 .type = QEMU_OPT_STRING,
327 .type = QEMU_OPT_STRING,
330 .type = QEMU_OPT_BOOL,
333 .type = QEMU_OPT_STRING,
335 .name = "splash-time",
336 .type = QEMU_OPT_STRING,
338 .name = "reboot-timeout",
339 .type = QEMU_OPT_STRING,
342 .type = QEMU_OPT_BOOL,
348 static QemuOptsList qemu_add_fd_opts = {
350 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
354 .type = QEMU_OPT_NUMBER,
355 .help = "file descriptor of which a duplicate is added to fd set",
358 .type = QEMU_OPT_NUMBER,
359 .help = "ID of the fd set to add fd to",
362 .type = QEMU_OPT_STRING,
363 .help = "free-form string used to describe fd",
365 { /* end of list */ }
369 static QemuOptsList qemu_object_opts = {
371 .implied_opt_name = "qom-type",
372 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
378 static QemuOptsList qemu_tpmdev_opts = {
380 .implied_opt_name = "type",
381 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
383 /* options are defined in the TPM backends */
384 { /* end of list */ }
388 static QemuOptsList qemu_realtime_opts = {
390 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
394 .type = QEMU_OPT_BOOL,
396 { /* end of list */ }
400 static QemuOptsList qemu_msg_opts = {
402 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
406 .type = QEMU_OPT_BOOL,
408 { /* end of list */ }
412 static QemuOptsList qemu_name_opts = {
414 .implied_opt_name = "guest",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
420 .type = QEMU_OPT_STRING,
421 .help = "Sets the name of the guest.\n"
422 "This name will be displayed in the SDL window caption.\n"
423 "The name will also be used for the VNC server",
426 .type = QEMU_OPT_STRING,
427 .help = "Sets the name of the QEMU process, as shown in top etc",
429 .name = "debug-threads",
430 .type = QEMU_OPT_BOOL,
431 .help = "When enabled, name the individual threads; defaults off.\n"
432 "NOTE: The thread names are for debugging and not a\n"
435 { /* End of list */ }
439 static QemuOptsList qemu_mem_opts = {
441 .implied_opt_name = "size",
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
447 .type = QEMU_OPT_SIZE,
451 .type = QEMU_OPT_NUMBER,
455 .type = QEMU_OPT_SIZE,
457 { /* end of list */ }
461 static QemuOptsList qemu_icount_opts = {
463 .implied_opt_name = "shift",
465 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
469 .type = QEMU_OPT_STRING,
472 .type = QEMU_OPT_BOOL,
475 .type = QEMU_OPT_BOOL,
478 .type = QEMU_OPT_STRING,
481 .type = QEMU_OPT_STRING,
483 { /* end of list */ }
487 static QemuOptsList qemu_semihosting_config_opts = {
488 .name = "semihosting-config",
489 .implied_opt_name = "enable",
490 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
494 .type = QEMU_OPT_BOOL,
497 .type = QEMU_OPT_STRING,
500 .type = QEMU_OPT_STRING,
502 { /* end of list */ }
506 static QemuOptsList qemu_fw_cfg_opts = {
508 .implied_opt_name = "name",
509 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
513 .type = QEMU_OPT_STRING,
514 .help = "Sets the fw_cfg name of the blob to be inserted",
517 .type = QEMU_OPT_STRING,
518 .help = "Sets the name of the file from which\n"
519 "the fw_cfg blob will be loaded",
522 .type = QEMU_OPT_STRING,
523 .help = "Sets content of the blob to be inserted from a string",
525 { /* end of list */ }
530 * Get machine options
532 * Returns: machine options (never null).
534 QemuOpts *qemu_get_machine_opts(void)
536 return qemu_find_opts_singleton("machine");
539 const char *qemu_get_vm_name(void)
544 static void res_free(void)
546 g_free(boot_splash_filedata);
547 boot_splash_filedata = NULL;
550 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
552 const char *driver = qemu_opt_get(opts, "driver");
557 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
558 if (strcmp(default_list[i].driver, driver) != 0)
560 *(default_list[i].flag) = 0;
565 /***********************************************************/
568 static RunState current_run_state = RUN_STATE_PRELAUNCH;
570 /* We use RUN_STATE__MAX but any invalid value will do */
571 static RunState vmstop_requested = RUN_STATE__MAX;
572 static QemuMutex vmstop_lock;
577 } RunStateTransition;
579 static const RunStateTransition runstate_transitions_def[] = {
581 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
582 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
583 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
585 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
586 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
587 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
588 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
589 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
590 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
591 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
592 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
593 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
594 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
595 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
597 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
598 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
599 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
601 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
602 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
606 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
614 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
618 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
622 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
624 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
625 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
626 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
627 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
628 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
630 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
631 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
632 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
633 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
635 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
637 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
638 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
642 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
643 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
644 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
648 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
651 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
652 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
655 { RUN_STATE__MAX, RUN_STATE__MAX },
658 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
660 bool runstate_check(RunState state)
662 return current_run_state == state;
665 bool runstate_store(char *str, size_t size)
667 const char *state = RunState_lookup[current_run_state];
668 size_t len = strlen(state) + 1;
673 memcpy(str, state, len);
677 static void runstate_init(void)
679 const RunStateTransition *p;
681 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
682 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
683 runstate_valid_transitions[p->from][p->to] = true;
686 qemu_mutex_init(&vmstop_lock);
689 /* This function will abort() on invalid state transitions */
690 void runstate_set(RunState new_state)
692 assert(new_state < RUN_STATE__MAX);
694 if (current_run_state == new_state) {
698 if (!runstate_valid_transitions[current_run_state][new_state]) {
699 error_report("invalid runstate transition: '%s' -> '%s'",
700 RunState_lookup[current_run_state],
701 RunState_lookup[new_state]);
704 trace_runstate_set(new_state);
705 current_run_state = new_state;
708 int runstate_is_running(void)
710 return runstate_check(RUN_STATE_RUNNING);
713 bool runstate_needs_reset(void)
715 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
716 runstate_check(RUN_STATE_SHUTDOWN);
719 StatusInfo *qmp_query_status(Error **errp)
721 StatusInfo *info = g_malloc0(sizeof(*info));
723 info->running = runstate_is_running();
724 info->singlestep = singlestep;
725 info->status = current_run_state;
730 static bool qemu_vmstop_requested(RunState *r)
732 qemu_mutex_lock(&vmstop_lock);
733 *r = vmstop_requested;
734 vmstop_requested = RUN_STATE__MAX;
735 qemu_mutex_unlock(&vmstop_lock);
736 return *r < RUN_STATE__MAX;
739 void qemu_system_vmstop_request_prepare(void)
741 qemu_mutex_lock(&vmstop_lock);
744 void qemu_system_vmstop_request(RunState state)
746 vmstop_requested = state;
747 qemu_mutex_unlock(&vmstop_lock);
755 qemu_vmstop_requested(&requested);
756 if (runstate_is_running() && requested == RUN_STATE__MAX) {
760 /* Ensure that a STOP/RESUME pair of events is emitted if a
761 * vmstop request was pending. The BLOCK_IO_ERROR event, for
762 * example, according to documentation is always followed by
765 if (runstate_is_running()) {
766 qapi_event_send_stop(&error_abort);
769 runstate_set(RUN_STATE_RUNNING);
770 vm_state_notify(1, RUN_STATE_RUNNING);
774 qapi_event_send_resume(&error_abort);
778 /***********************************************************/
779 /* real time host monotonic timer */
781 static time_t qemu_time(void)
783 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
786 /***********************************************************/
787 /* host time/date access */
788 void qemu_get_timedate(struct tm *tm, int offset)
790 time_t ti = qemu_time();
793 if (rtc_date_offset == -1) {
797 localtime_r(&ti, tm);
799 ti -= rtc_date_offset;
804 int qemu_timedate_diff(struct tm *tm)
808 if (rtc_date_offset == -1)
810 seconds = mktimegm(tm);
813 tmp.tm_isdst = -1; /* use timezone to figure it out */
814 seconds = mktime(&tmp);
817 seconds = mktimegm(tm) + rtc_date_offset;
819 return seconds - qemu_time();
822 static void configure_rtc_date_offset(const char *startdate, int legacy)
824 time_t rtc_start_date;
827 if (!strcmp(startdate, "now") && legacy) {
828 rtc_date_offset = -1;
830 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
838 } else if (sscanf(startdate, "%d-%d-%d",
850 rtc_start_date = mktimegm(&tm);
851 if (rtc_start_date == -1) {
853 error_report("invalid date format");
854 error_printf("valid formats: "
855 "'2006-06-17T16:01:21' or '2006-06-17'\n");
858 rtc_date_offset = qemu_time() - rtc_start_date;
862 static void configure_rtc(QemuOpts *opts)
866 value = qemu_opt_get(opts, "base");
868 if (!strcmp(value, "utc")) {
870 } else if (!strcmp(value, "localtime")) {
871 Error *blocker = NULL;
873 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
874 "-rtc base=localtime");
875 replay_add_blocker(blocker);
877 configure_rtc_date_offset(value, 0);
880 value = qemu_opt_get(opts, "clock");
882 if (!strcmp(value, "host")) {
883 rtc_clock = QEMU_CLOCK_HOST;
884 } else if (!strcmp(value, "rt")) {
885 rtc_clock = QEMU_CLOCK_REALTIME;
886 } else if (!strcmp(value, "vm")) {
887 rtc_clock = QEMU_CLOCK_VIRTUAL;
889 error_report("invalid option value '%s'", value);
893 value = qemu_opt_get(opts, "driftfix");
895 if (!strcmp(value, "slew")) {
896 static GlobalProperty slew_lost_ticks = {
897 .driver = "mc146818rtc",
898 .property = "lost_tick_policy",
902 qdev_prop_register_global(&slew_lost_ticks);
903 } else if (!strcmp(value, "none")) {
904 /* discard is default */
906 error_report("invalid option value '%s'", value);
912 /***********************************************************/
913 /* Bluetooth support */
916 static struct HCIInfo *hci_table[MAX_NICS];
918 struct HCIInfo *qemu_next_hci(void)
920 if (cur_hci == nb_hcis)
923 return hci_table[cur_hci++];
926 static int bt_hci_parse(const char *str)
931 if (nb_hcis >= MAX_NICS) {
932 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
945 bdaddr.b[5] = 0x56 + nb_hcis;
946 hci->bdaddr_set(hci, bdaddr.b);
948 hci_table[nb_hcis++] = hci;
953 static void bt_vhci_add(int vlan_id)
955 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
958 error_report("warning: adding a VHCI to an empty scatternet %i",
961 bt_vhci_init(bt_new_hci(vlan));
964 static struct bt_device_s *bt_device_add(const char *opt)
966 struct bt_scatternet_s *vlan;
968 char *endp = strstr(opt, ",vlan=");
969 int len = (endp ? endp - opt : strlen(opt)) + 1;
972 pstrcpy(devname, MIN(sizeof(devname), len), opt);
975 vlan_id = strtol(endp + 6, &endp, 0);
977 error_report("unrecognised bluetooth vlan Id");
982 vlan = qemu_find_bt_vlan(vlan_id);
985 error_report("warning: adding a slave device to an empty scatternet %i",
988 if (!strcmp(devname, "keyboard"))
989 return bt_keyboard_init(vlan);
991 error_report("unsupported bluetooth device '%s'", devname);
995 static int bt_parse(const char *opt)
997 const char *endp, *p;
1000 if (strstart(opt, "hci", &endp)) {
1001 if (!*endp || *endp == ',') {
1003 if (!strstart(endp, ",vlan=", 0))
1006 return bt_hci_parse(opt);
1008 } else if (strstart(opt, "vhci", &endp)) {
1009 if (!*endp || *endp == ',') {
1011 if (strstart(endp, ",vlan=", &p)) {
1012 vlan = strtol(p, (char **) &endp, 0);
1014 error_report("bad scatternet '%s'", p);
1018 error_report("bad parameter '%s'", endp + 1);
1027 } else if (strstart(opt, "device:", &endp))
1028 return !bt_device_add(endp);
1030 error_report("bad bluetooth parameter '%s'", opt);
1034 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1036 /* FIXME: change this to true for 1.3 */
1037 if (qemu_opt_get_bool(opts, "enable", false)) {
1038 #ifdef CONFIG_SECCOMP
1039 if (seccomp_start() < 0) {
1040 error_report("failed to install seccomp syscall filter "
1045 error_report("seccomp support is disabled");
1053 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1055 const char *proc_name;
1057 if (qemu_opt_get(opts, "debug-threads")) {
1058 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1060 qemu_name = qemu_opt_get(opts, "guest");
1062 proc_name = qemu_opt_get(opts, "process");
1064 os_set_proc_name(proc_name);
1070 bool defaults_enabled(void)
1072 return has_defaults;
1076 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1078 int fd, dupfd, flags;
1080 const char *fd_opaque = NULL;
1083 fd = qemu_opt_get_number(opts, "fd", -1);
1084 fdset_id = qemu_opt_get_number(opts, "set", -1);
1085 fd_opaque = qemu_opt_get(opts, "opaque");
1088 error_report("fd option is required and must be non-negative");
1092 if (fd <= STDERR_FILENO) {
1093 error_report("fd cannot be a standard I/O stream");
1098 * All fds inherited across exec() necessarily have FD_CLOEXEC
1099 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1101 flags = fcntl(fd, F_GETFD);
1102 if (flags == -1 || (flags & FD_CLOEXEC)) {
1103 error_report("fd is not valid or already in use");
1108 error_report("set option is required and must be non-negative");
1112 #ifdef F_DUPFD_CLOEXEC
1113 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1117 qemu_set_cloexec(dupfd);
1121 error_report("error duplicating fd: %s", strerror(errno));
1125 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1126 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1133 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1137 fd = qemu_opt_get_number(opts, "fd", -1);
1144 /***********************************************************/
1145 /* QEMU Block devices */
1147 #define HD_OPTS "media=disk"
1148 #define CDROM_OPTS "media=cdrom"
1150 #define PFLASH_OPTS ""
1154 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1156 BlockInterfaceType *block_default_type = opaque;
1158 return drive_new(opts, *block_default_type) == NULL;
1161 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1163 if (qemu_opt_get(opts, "snapshot") == NULL) {
1164 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1169 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1170 int index, const char *optstr)
1175 if (!enable || drive_get_by_index(type, index)) {
1179 opts = drive_add(type, index, NULL, optstr);
1181 drive_enable_snapshot(NULL, opts, NULL);
1184 dinfo = drive_new(opts, type);
1188 dinfo->is_default = true;
1192 static QemuOptsList qemu_smp_opts = {
1194 .implied_opt_name = "cpus",
1195 .merge_lists = true,
1196 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1200 .type = QEMU_OPT_NUMBER,
1203 .type = QEMU_OPT_NUMBER,
1206 .type = QEMU_OPT_NUMBER,
1209 .type = QEMU_OPT_NUMBER,
1212 .type = QEMU_OPT_NUMBER,
1214 { /*End of list */ }
1218 static void smp_parse(QemuOpts *opts)
1222 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1223 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1224 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1225 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1227 /* compute missing values, prefer sockets over cores over threads */
1228 if (cpus == 0 || sockets == 0) {
1229 sockets = sockets > 0 ? sockets : 1;
1230 cores = cores > 0 ? cores : 1;
1231 threads = threads > 0 ? threads : 1;
1233 cpus = cores * threads * sockets;
1235 } else if (cores == 0) {
1236 threads = threads > 0 ? threads : 1;
1237 cores = cpus / (sockets * threads);
1238 } else if (threads == 0) {
1239 threads = cpus / (cores * sockets);
1240 } else if (sockets * cores * threads < cpus) {
1241 error_report("cpu topology: "
1242 "sockets (%u) * cores (%u) * threads (%u) < "
1244 sockets, cores, threads, cpus);
1248 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1249 if (sockets * cores * threads > max_cpus) {
1250 error_report("cpu topology: "
1251 "sockets (%u) * cores (%u) * threads (%u) > "
1253 sockets, cores, threads, max_cpus);
1258 smp_cores = cores > 0 ? cores : 1;
1259 smp_threads = threads > 0 ? threads : 1;
1263 if (max_cpus == 0) {
1264 max_cpus = smp_cpus;
1267 if (max_cpus > MAX_CPUMASK_BITS) {
1268 error_report("unsupported number of maxcpus");
1271 if (max_cpus < smp_cpus) {
1272 error_report("maxcpus must be equal to or greater than smp");
1276 if (smp_cpus > 1 || smp_cores > 1 || smp_threads > 1) {
1277 Error *blocker = NULL;
1278 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1279 replay_add_blocker(blocker);
1283 static void realtime_init(void)
1286 if (os_mlock() < 0) {
1287 error_report("locking memory failed");
1294 static void configure_msg(QemuOpts *opts)
1296 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1299 /***********************************************************/
1302 typedef struct SemihostingConfig {
1304 SemihostingTarget target;
1307 const char *cmdline; /* concatenated argv */
1308 } SemihostingConfig;
1310 static SemihostingConfig semihosting;
1312 bool semihosting_enabled(void)
1314 return semihosting.enabled;
1317 SemihostingTarget semihosting_get_target(void)
1319 return semihosting.target;
1322 const char *semihosting_get_arg(int i)
1324 if (i >= semihosting.argc) {
1327 return semihosting.argv[i];
1330 int semihosting_get_argc(void)
1332 return semihosting.argc;
1335 const char *semihosting_get_cmdline(void)
1337 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1338 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1340 return semihosting.cmdline;
1343 static int add_semihosting_arg(void *opaque,
1344 const char *name, const char *val,
1347 SemihostingConfig *s = opaque;
1348 if (strcmp(name, "arg") == 0) {
1350 /* one extra element as g_strjoinv() expects NULL-terminated array */
1351 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1352 s->argv[s->argc - 1] = val;
1353 s->argv[s->argc] = NULL;
1358 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1359 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1364 add_semihosting_arg(&semihosting, "arg", file, NULL);
1366 /* split -append and initialize argv[1..n] */
1367 cmd_token = strtok(g_strdup(cmd), " ");
1369 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1370 cmd_token = strtok(NULL, " ");
1374 /* Now we still need this for compatibility with XEN. */
1375 bool has_igd_gfx_passthru;
1376 static void igd_gfx_passthru(void)
1378 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1381 /***********************************************************/
1384 static int usb_device_add(const char *devname)
1386 USBDevice *dev = NULL;
1387 #ifndef CONFIG_LINUX
1391 if (!machine_usb(current_machine)) {
1395 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1396 dev = usbdevice_create(devname);
1400 /* the other ones */
1401 #ifndef CONFIG_LINUX
1402 /* only the linux version is qdev-ified, usb-bsd still needs this */
1403 if (strstart(devname, "host:", &p)) {
1404 dev = usb_host_device_open(usb_bus_find(-1), p);
1414 static int usb_device_del(const char *devname)
1419 if (strstart(devname, "host:", &p)) {
1423 if (!machine_usb(current_machine)) {
1427 p = strchr(devname, '.');
1430 bus_num = strtoul(devname, NULL, 0);
1431 addr = strtoul(p + 1, NULL, 0);
1433 return usb_device_delete_addr(bus_num, addr);
1436 static int usb_parse(const char *cmdline)
1439 r = usb_device_add(cmdline);
1441 error_report("could not add USB device '%s'", cmdline);
1446 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1448 const char *devname = qdict_get_str(qdict, "devname");
1449 if (usb_device_add(devname) < 0) {
1450 error_report("could not add USB device '%s'", devname);
1454 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1456 const char *devname = qdict_get_str(qdict, "devname");
1457 if (usb_device_del(devname) < 0) {
1458 error_report("could not delete USB device '%s'", devname);
1462 /***********************************************************/
1463 /* machine registration */
1465 MachineState *current_machine;
1467 static MachineClass *find_machine(const char *name)
1469 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1470 MachineClass *mc = NULL;
1472 for (el = machines; el; el = el->next) {
1473 MachineClass *temp = el->data;
1475 if (!strcmp(temp->name, name)) {
1480 !strcmp(temp->alias, name)) {
1486 g_slist_free(machines);
1490 MachineClass *find_default_machine(void)
1492 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1493 MachineClass *mc = NULL;
1495 for (el = machines; el; el = el->next) {
1496 MachineClass *temp = el->data;
1498 if (temp->is_default) {
1504 g_slist_free(machines);
1508 MachineInfoList *qmp_query_machines(Error **errp)
1510 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1511 MachineInfoList *mach_list = NULL;
1513 for (el = machines; el; el = el->next) {
1514 MachineClass *mc = el->data;
1515 MachineInfoList *entry;
1518 info = g_malloc0(sizeof(*info));
1519 if (mc->is_default) {
1520 info->has_is_default = true;
1521 info->is_default = true;
1525 info->has_alias = true;
1526 info->alias = g_strdup(mc->alias);
1529 info->name = g_strdup(mc->name);
1530 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1532 entry = g_malloc0(sizeof(*entry));
1533 entry->value = info;
1534 entry->next = mach_list;
1538 g_slist_free(machines);
1542 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1544 ObjectProperty *prop;
1545 ObjectPropertyIterator iter;
1547 if (!qemu_opt_has_help_opt(opts)) {
1551 object_property_iter_init(&iter, OBJECT(machine));
1552 while ((prop = object_property_iter_next(&iter))) {
1557 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1558 prop->name, prop->type);
1559 if (prop->description) {
1560 error_printf(" (%s)\n", prop->description);
1569 /***********************************************************/
1570 /* main execution loop */
1572 struct vm_change_state_entry {
1573 VMChangeStateHandler *cb;
1575 QLIST_ENTRY (vm_change_state_entry) entries;
1578 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1580 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1583 VMChangeStateEntry *e;
1585 e = g_malloc0(sizeof (*e));
1589 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1593 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1595 QLIST_REMOVE (e, entries);
1599 void vm_state_notify(int running, RunState state)
1601 VMChangeStateEntry *e, *next;
1603 trace_vm_state_notify(running, state);
1605 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1606 e->cb(e->opaque, running, state);
1610 /* reset/shutdown handler */
1612 typedef struct QEMUResetEntry {
1613 QTAILQ_ENTRY(QEMUResetEntry) entry;
1614 QEMUResetHandler *func;
1618 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1619 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1620 static int reset_requested;
1621 static int shutdown_requested, shutdown_signal = -1;
1622 static pid_t shutdown_pid;
1623 static int powerdown_requested;
1624 static int debug_requested;
1625 static int suspend_requested;
1626 static WakeupReason wakeup_reason;
1627 static NotifierList powerdown_notifiers =
1628 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1629 static NotifierList suspend_notifiers =
1630 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1631 static NotifierList wakeup_notifiers =
1632 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1633 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1635 int qemu_shutdown_requested_get(void)
1637 return shutdown_requested;
1640 int qemu_reset_requested_get(void)
1642 return reset_requested;
1645 static int qemu_shutdown_requested(void)
1647 return atomic_xchg(&shutdown_requested, 0);
1650 static void qemu_kill_report(void)
1652 if (!qtest_driver() && shutdown_signal != -1) {
1653 if (shutdown_pid == 0) {
1654 /* This happens for eg ^C at the terminal, so it's worth
1655 * avoiding printing an odd message in that case.
1657 error_report("terminating on signal %d", shutdown_signal);
1659 error_report("terminating on signal %d from pid " FMT_pid,
1660 shutdown_signal, shutdown_pid);
1662 shutdown_signal = -1;
1666 static int qemu_reset_requested(void)
1668 int r = reset_requested;
1669 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1670 reset_requested = 0;
1676 static int qemu_suspend_requested(void)
1678 int r = suspend_requested;
1679 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1680 suspend_requested = 0;
1686 static WakeupReason qemu_wakeup_requested(void)
1688 return wakeup_reason;
1691 static int qemu_powerdown_requested(void)
1693 int r = powerdown_requested;
1694 powerdown_requested = 0;
1698 static int qemu_debug_requested(void)
1700 int r = debug_requested;
1701 debug_requested = 0;
1705 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1707 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1710 re->opaque = opaque;
1711 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1714 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1718 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1719 if (re->func == func && re->opaque == opaque) {
1720 QTAILQ_REMOVE(&reset_handlers, re, entry);
1727 void qemu_devices_reset(void)
1729 QEMUResetEntry *re, *nre;
1731 /* reset all devices */
1732 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1733 re->func(re->opaque);
1737 void qemu_system_reset(bool report)
1741 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1743 cpu_synchronize_all_states();
1745 if (mc && mc->reset) {
1748 qemu_devices_reset();
1751 qapi_event_send_reset(&error_abort);
1753 cpu_synchronize_all_post_reset();
1756 void qemu_system_guest_panicked(void)
1759 current_cpu->crash_occurred = true;
1761 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1762 vm_stop(RUN_STATE_GUEST_PANICKED);
1765 void qemu_system_reset_request(void)
1768 shutdown_requested = 1;
1770 reset_requested = 1;
1773 qemu_notify_event();
1776 static void qemu_system_suspend(void)
1779 notifier_list_notify(&suspend_notifiers, NULL);
1780 runstate_set(RUN_STATE_SUSPENDED);
1781 qapi_event_send_suspend(&error_abort);
1784 void qemu_system_suspend_request(void)
1786 if (runstate_check(RUN_STATE_SUSPENDED)) {
1789 suspend_requested = 1;
1791 qemu_notify_event();
1794 void qemu_register_suspend_notifier(Notifier *notifier)
1796 notifier_list_add(&suspend_notifiers, notifier);
1799 void qemu_system_wakeup_request(WakeupReason reason)
1801 trace_system_wakeup_request(reason);
1803 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1806 if (!(wakeup_reason_mask & (1 << reason))) {
1809 runstate_set(RUN_STATE_RUNNING);
1810 wakeup_reason = reason;
1811 qemu_notify_event();
1814 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1817 wakeup_reason_mask |= (1 << reason);
1819 wakeup_reason_mask &= ~(1 << reason);
1823 void qemu_register_wakeup_notifier(Notifier *notifier)
1825 notifier_list_add(&wakeup_notifiers, notifier);
1828 void qemu_system_killed(int signal, pid_t pid)
1830 shutdown_signal = signal;
1834 /* Cannot call qemu_system_shutdown_request directly because
1835 * we are in a signal handler.
1837 shutdown_requested = 1;
1838 qemu_notify_event();
1841 void qemu_system_shutdown_request(void)
1843 trace_qemu_system_shutdown_request();
1844 replay_shutdown_request();
1845 shutdown_requested = 1;
1846 qemu_notify_event();
1849 static void qemu_system_powerdown(void)
1851 qapi_event_send_powerdown(&error_abort);
1852 notifier_list_notify(&powerdown_notifiers, NULL);
1855 void qemu_system_powerdown_request(void)
1857 trace_qemu_system_powerdown_request();
1858 powerdown_requested = 1;
1859 qemu_notify_event();
1862 void qemu_register_powerdown_notifier(Notifier *notifier)
1864 notifier_list_add(&powerdown_notifiers, notifier);
1867 void qemu_system_debug_request(void)
1869 debug_requested = 1;
1870 qemu_notify_event();
1873 static bool main_loop_should_exit(void)
1876 if (qemu_debug_requested()) {
1877 vm_stop(RUN_STATE_DEBUG);
1879 if (qemu_suspend_requested()) {
1880 qemu_system_suspend();
1882 if (qemu_shutdown_requested()) {
1884 qapi_event_send_shutdown(&error_abort);
1886 vm_stop(RUN_STATE_SHUTDOWN);
1891 if (qemu_reset_requested()) {
1893 qemu_system_reset(VMRESET_REPORT);
1895 if (!runstate_check(RUN_STATE_RUNNING) &&
1896 !runstate_check(RUN_STATE_INMIGRATE)) {
1897 runstate_set(RUN_STATE_PRELAUNCH);
1900 if (qemu_wakeup_requested()) {
1902 qemu_system_reset(VMRESET_SILENT);
1903 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1904 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1906 qapi_event_send_wakeup(&error_abort);
1908 if (qemu_powerdown_requested()) {
1909 qemu_system_powerdown();
1911 if (qemu_vmstop_requested(&r)) {
1917 static void main_loop(void)
1921 #ifdef CONFIG_PROFILER
1925 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1926 #ifdef CONFIG_PROFILER
1927 ti = profile_getclock();
1929 last_io = main_loop_wait(nonblocking);
1930 #ifdef CONFIG_PROFILER
1931 dev_time += profile_getclock() - ti;
1933 } while (!main_loop_should_exit());
1936 static void version(void)
1938 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1941 static void help(int exitcode)
1944 printf("usage: %s [options] [disk_image]\n\n"
1945 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1946 error_get_progname());
1948 #define QEMU_OPTIONS_GENERATE_HELP
1949 #include "qemu-options-wrapper.h"
1951 printf("\nDuring emulation, the following keys are useful:\n"
1952 "ctrl-alt-f toggle full screen\n"
1953 "ctrl-alt-n switch to virtual console 'n'\n"
1954 "ctrl-alt toggle mouse and keyboard grab\n"
1956 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1961 #define HAS_ARG 0x0001
1963 typedef struct QEMUOption {
1970 static const QEMUOption qemu_options[] = {
1971 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1972 #define QEMU_OPTIONS_GENERATE_OPTIONS
1973 #include "qemu-options-wrapper.h"
1977 typedef struct VGAInterfaceInfo {
1978 const char *opt_name; /* option name */
1979 const char *name; /* human-readable name */
1980 /* Class names indicating that support is available.
1981 * If no class is specified, the interface is always available */
1982 const char *class_names[2];
1985 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1991 .name = "standard VGA",
1992 .class_names = { "VGA", "isa-vga" },
1995 .opt_name = "cirrus",
1996 .name = "Cirrus VGA",
1997 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2000 .opt_name = "vmware",
2001 .name = "VMWare SVGA",
2002 .class_names = { "vmware-svga" },
2005 .opt_name = "virtio",
2006 .name = "Virtio VGA",
2007 .class_names = { "virtio-vga" },
2012 .class_names = { "qxl-vga" },
2016 .name = "TCX framebuffer",
2017 .class_names = { "SUNW,tcx" },
2021 .name = "CG3 framebuffer",
2022 .class_names = { "cgthree" },
2025 .opt_name = "xenfb",
2029 static bool vga_interface_available(VGAInterfaceType t)
2031 VGAInterfaceInfo *ti = &vga_interfaces[t];
2033 assert(t < VGA_TYPE_MAX);
2034 return !ti->class_names[0] ||
2035 object_class_by_name(ti->class_names[0]) ||
2036 object_class_by_name(ti->class_names[1]);
2039 static void select_vgahw(const char *p)
2044 assert(vga_interface_type == VGA_NONE);
2045 for (t = 0; t < VGA_TYPE_MAX; t++) {
2046 VGAInterfaceInfo *ti = &vga_interfaces[t];
2047 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2048 if (!vga_interface_available(t)) {
2049 error_report("%s not available", ti->name);
2052 vga_interface_type = t;
2056 if (t == VGA_TYPE_MAX) {
2058 error_report("unknown vga type: %s", p);
2062 const char *nextopt;
2064 if (strstart(opts, ",retrace=", &nextopt)) {
2066 if (strstart(opts, "dumb", &nextopt))
2067 vga_retrace_method = VGA_RETRACE_DUMB;
2068 else if (strstart(opts, "precise", &nextopt))
2069 vga_retrace_method = VGA_RETRACE_PRECISE;
2070 else goto invalid_vga;
2071 } else goto invalid_vga;
2076 typedef enum DisplayType {
2085 static DisplayType select_display(const char *p)
2088 DisplayType display = DT_DEFAULT;
2090 if (strstart(p, "sdl", &opts)) {
2094 const char *nextopt;
2096 if (strstart(opts, ",frame=", &nextopt)) {
2098 if (strstart(opts, "on", &nextopt)) {
2100 } else if (strstart(opts, "off", &nextopt)) {
2103 goto invalid_sdl_args;
2105 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2107 if (strstart(opts, "on", &nextopt)) {
2109 } else if (strstart(opts, "off", &nextopt)) {
2112 goto invalid_sdl_args;
2114 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2116 if (strstart(opts, "on", &nextopt)) {
2118 } else if (strstart(opts, "off", &nextopt)) {
2121 goto invalid_sdl_args;
2123 } else if (strstart(opts, ",window_close=", &nextopt)) {
2125 if (strstart(opts, "on", &nextopt)) {
2127 } else if (strstart(opts, "off", &nextopt)) {
2130 goto invalid_sdl_args;
2132 } else if (strstart(opts, ",gl=", &nextopt)) {
2134 if (strstart(opts, "on", &nextopt)) {
2136 } else if (strstart(opts, "off", &nextopt)) {
2139 goto invalid_sdl_args;
2143 error_report("invalid SDL option string");
2149 error_report("SDL support is disabled");
2152 } else if (strstart(p, "vnc", &opts)) {
2154 vnc_parse(opts + 1, &error_fatal);
2156 error_report("VNC requires a display argument vnc=<display>");
2159 } else if (strstart(p, "curses", &opts)) {
2160 #ifdef CONFIG_CURSES
2161 display = DT_CURSES;
2163 error_report("curses support is disabled");
2166 } else if (strstart(p, "gtk", &opts)) {
2170 const char *nextopt;
2172 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2174 if (strstart(opts, "on", &nextopt)) {
2175 grab_on_hover = true;
2176 } else if (strstart(opts, "off", &nextopt)) {
2177 grab_on_hover = false;
2179 goto invalid_gtk_args;
2181 } else if (strstart(opts, ",gl=", &nextopt)) {
2183 if (strstart(opts, "on", &nextopt)) {
2185 } else if (strstart(opts, "off", &nextopt)) {
2188 goto invalid_gtk_args;
2192 error_report("invalid GTK option string");
2198 error_report("GTK support is disabled");
2201 } else if (strstart(p, "none", &opts)) {
2204 error_report("unknown display type");
2211 static int balloon_parse(const char *arg)
2215 if (strcmp(arg, "none") == 0) {
2219 if (!strncmp(arg, "virtio", 6)) {
2220 if (arg[6] == ',') {
2221 /* have params -> parse them */
2222 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2227 /* create empty opts */
2228 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2231 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2238 char *qemu_find_file(int type, const char *name)
2244 /* Try the name as a straight path first */
2245 if (access(name, R_OK) == 0) {
2246 trace_load_file(name, name);
2247 return g_strdup(name);
2251 case QEMU_FILE_TYPE_BIOS:
2254 case QEMU_FILE_TYPE_KEYMAP:
2255 subdir = "keymaps/";
2261 for (i = 0; i < data_dir_idx; i++) {
2262 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2263 if (access(buf, R_OK) == 0) {
2264 trace_load_file(name, buf);
2272 static inline bool nonempty_str(const char *str)
2277 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2281 const char *name, *file, *str;
2282 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2284 if (fw_cfg == NULL) {
2285 error_report("fw_cfg device not available");
2288 name = qemu_opt_get(opts, "name");
2289 file = qemu_opt_get(opts, "file");
2290 str = qemu_opt_get(opts, "string");
2292 /* we need name and either a file or the content string */
2293 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2294 error_report("invalid argument(s)");
2297 if (nonempty_str(file) && nonempty_str(str)) {
2298 error_report("file and string are mutually exclusive");
2301 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2302 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2305 if (strncmp(name, "opt/", 4) != 0) {
2306 error_report("warning: externally provided fw_cfg item names "
2307 "should be prefixed with \"opt/\"");
2309 if (nonempty_str(str)) {
2310 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2311 buf = g_memdup(str, size);
2313 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2314 error_report("can't load %s", file);
2318 /* For legacy, keep user files in a specific global order. */
2319 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2320 fw_cfg_add_file(fw_cfg, name, buf, size);
2321 fw_cfg_reset_order_override(fw_cfg);
2325 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2327 return qdev_device_help(opts);
2330 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2335 dev = qdev_device_add(opts, &err);
2337 error_report_err(err);
2340 object_unref(OBJECT(dev));
2344 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2346 Error *local_err = NULL;
2348 qemu_chr_new_from_opts(opts, NULL, &local_err);
2350 error_report_err(local_err);
2356 #ifdef CONFIG_VIRTFS
2357 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2360 ret = qemu_fsdev_add(opts);
2366 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2368 CharDriverState *chr;
2369 const char *chardev;
2373 mode = qemu_opt_get(opts, "mode");
2377 if (strcmp(mode, "readline") == 0) {
2378 flags = MONITOR_USE_READLINE;
2379 } else if (strcmp(mode, "control") == 0) {
2380 flags = MONITOR_USE_CONTROL;
2382 error_report("unknown monitor mode \"%s\"", mode);
2386 if (qemu_opt_get_bool(opts, "pretty", 0))
2387 flags |= MONITOR_USE_PRETTY;
2389 if (qemu_opt_get_bool(opts, "default", 0))
2390 flags |= MONITOR_IS_DEFAULT;
2392 chardev = qemu_opt_get(opts, "chardev");
2393 chr = qemu_chr_find(chardev);
2395 error_report("chardev \"%s\" not found", chardev);
2399 qemu_chr_fe_claim_no_fail(chr);
2400 monitor_init(chr, flags);
2404 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2406 static int monitor_device_index = 0;
2412 if (strstart(optarg, "chardev:", &p)) {
2413 snprintf(label, sizeof(label), "%s", p);
2415 snprintf(label, sizeof(label), "compat_monitor%d",
2416 monitor_device_index);
2417 if (monitor_device_index == 0) {
2420 opts = qemu_chr_parse_compat(label, optarg);
2422 error_report("parse error: %s", optarg);
2427 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2428 qemu_opt_set(opts, "mode", mode, &error_abort);
2429 qemu_opt_set(opts, "chardev", label, &error_abort);
2430 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2432 qemu_opt_set(opts, "default", "on", &error_abort);
2433 monitor_device_index++;
2436 struct device_config {
2438 DEV_USB, /* -usbdevice */
2440 DEV_SERIAL, /* -serial */
2441 DEV_PARALLEL, /* -parallel */
2442 DEV_VIRTCON, /* -virtioconsole */
2443 DEV_DEBUGCON, /* -debugcon */
2444 DEV_GDB, /* -gdb, -s */
2445 DEV_SCLP, /* s390 sclp */
2447 const char *cmdline;
2449 QTAILQ_ENTRY(device_config) next;
2452 static QTAILQ_HEAD(, device_config) device_configs =
2453 QTAILQ_HEAD_INITIALIZER(device_configs);
2455 static void add_device_config(int type, const char *cmdline)
2457 struct device_config *conf;
2459 conf = g_malloc0(sizeof(*conf));
2461 conf->cmdline = cmdline;
2462 loc_save(&conf->loc);
2463 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2466 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2468 struct device_config *conf;
2471 QTAILQ_FOREACH(conf, &device_configs, next) {
2472 if (conf->type != type)
2474 loc_push_restore(&conf->loc);
2475 rc = func(conf->cmdline);
2476 loc_pop(&conf->loc);
2484 static int serial_parse(const char *devname)
2486 static int index = 0;
2489 if (strcmp(devname, "none") == 0)
2491 if (index == MAX_SERIAL_PORTS) {
2492 error_report("too many serial ports");
2495 snprintf(label, sizeof(label), "serial%d", index);
2496 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2497 if (!serial_hds[index]) {
2498 error_report("could not connect serial device"
2499 " to character backend '%s'", devname);
2506 static int parallel_parse(const char *devname)
2508 static int index = 0;
2511 if (strcmp(devname, "none") == 0)
2513 if (index == MAX_PARALLEL_PORTS) {
2514 error_report("too many parallel ports");
2517 snprintf(label, sizeof(label), "parallel%d", index);
2518 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2519 if (!parallel_hds[index]) {
2520 error_report("could not connect parallel device"
2521 " to character backend '%s'", devname);
2528 static int virtcon_parse(const char *devname)
2530 QemuOptsList *device = qemu_find_opts("device");
2531 static int index = 0;
2533 QemuOpts *bus_opts, *dev_opts;
2535 if (strcmp(devname, "none") == 0)
2537 if (index == MAX_VIRTIO_CONSOLES) {
2538 error_report("too many virtio consoles");
2542 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2543 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2545 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2546 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2548 snprintf(label, sizeof(label), "virtcon%d", index);
2549 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2550 if (!virtcon_hds[index]) {
2551 error_report("could not connect virtio console"
2552 " to character backend '%s'", devname);
2555 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2561 static int sclp_parse(const char *devname)
2563 QemuOptsList *device = qemu_find_opts("device");
2564 static int index = 0;
2568 if (strcmp(devname, "none") == 0) {
2571 if (index == MAX_SCLP_CONSOLES) {
2572 error_report("too many sclp consoles");
2576 assert(arch_type == QEMU_ARCH_S390X);
2578 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2579 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2581 snprintf(label, sizeof(label), "sclpcon%d", index);
2582 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2583 if (!sclp_hds[index]) {
2584 error_report("could not connect sclp console"
2585 " to character backend '%s'", devname);
2588 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2594 static int debugcon_parse(const char *devname)
2598 if (!qemu_chr_new("debugcon", devname, NULL)) {
2601 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2603 error_report("already have a debugcon device");
2606 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2607 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2611 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2613 const MachineClass *mc1 = a, *mc2 = b;
2616 if (mc1->family == NULL) {
2617 if (mc2->family == NULL) {
2618 /* Compare standalone machine types against each other; they sort
2619 * in increasing order.
2621 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2622 object_class_get_name(OBJECT_CLASS(mc2)));
2625 /* Standalone machine types sort after families. */
2629 if (mc2->family == NULL) {
2630 /* Families sort before standalone machine types. */
2634 /* Families sort between each other alphabetically increasingly. */
2635 res = strcmp(mc1->family, mc2->family);
2640 /* Within the same family, machine types sort in decreasing order. */
2641 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2642 object_class_get_name(OBJECT_CLASS(mc1)));
2645 static MachineClass *machine_parse(const char *name)
2647 MachineClass *mc = NULL;
2648 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2651 mc = find_machine(name);
2654 g_slist_free(machines);
2657 if (name && !is_help_option(name)) {
2658 error_report("unsupported machine type");
2659 error_printf("Use -machine help to list supported machines\n");
2661 printf("Supported machines are:\n");
2662 machines = g_slist_sort(machines, machine_class_cmp);
2663 for (el = machines; el; el = el->next) {
2664 MachineClass *mc = el->data;
2666 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2668 printf("%-20s %s%s\n", mc->name, mc->desc,
2669 mc->is_default ? " (default)" : "");
2673 g_slist_free(machines);
2674 exit(!name || !is_help_option(name));
2677 void qemu_add_exit_notifier(Notifier *notify)
2679 notifier_list_add(&exit_notifiers, notify);
2682 void qemu_remove_exit_notifier(Notifier *notify)
2684 notifier_remove(notify);
2687 static void qemu_run_exit_notifiers(void)
2689 notifier_list_notify(&exit_notifiers, NULL);
2692 static bool machine_init_done;
2694 void qemu_add_machine_init_done_notifier(Notifier *notify)
2696 notifier_list_add(&machine_init_done_notifiers, notify);
2697 if (machine_init_done) {
2698 notify->notify(notify, NULL);
2702 static void qemu_run_machine_init_done_notifiers(void)
2704 notifier_list_notify(&machine_init_done_notifiers, NULL);
2705 machine_init_done = true;
2708 static const QEMUOption *lookup_opt(int argc, char **argv,
2709 const char **poptarg, int *poptind)
2711 const QEMUOption *popt;
2712 int optind = *poptind;
2713 char *r = argv[optind];
2716 loc_set_cmdline(argv, optind, 1);
2718 /* Treat --foo the same as -foo. */
2721 popt = qemu_options;
2724 error_report("invalid option");
2727 if (!strcmp(popt->name, r + 1))
2731 if (popt->flags & HAS_ARG) {
2732 if (optind >= argc) {
2733 error_report("requires an argument");
2736 optarg = argv[optind++];
2737 loc_set_cmdline(argv, optind - 2, 2);
2748 static MachineClass *select_machine(void)
2750 MachineClass *machine_class = find_default_machine();
2755 loc_push_none(&loc);
2757 opts = qemu_get_machine_opts();
2758 qemu_opts_loc_restore(opts);
2760 optarg = qemu_opt_get(opts, "type");
2762 machine_class = machine_parse(optarg);
2765 if (!machine_class) {
2766 error_report("No machine specified, and there is no default");
2767 error_printf("Use -machine help to list supported machines\n");
2772 return machine_class;
2775 static int machine_set_property(void *opaque,
2776 const char *name, const char *value,
2779 Object *obj = OBJECT(opaque);
2780 Error *local_err = NULL;
2783 if (strcmp(name, "type") == 0) {
2787 qom_name = g_strdup(name);
2795 object_property_parse(obj, value, qom_name, &local_err);
2799 error_report_err(local_err);
2808 * Initial object creation happens before all other
2809 * QEMU data types are created. The majority of objects
2810 * can be created at this point. The rng-egd object
2811 * cannot be created here, as it depends on the chardev
2814 static bool object_create_initial(const char *type)
2816 if (g_str_equal(type, "rng-egd")) {
2821 * return false for concrete netfilters since
2822 * they depend on netdevs already existing
2824 if (g_str_equal(type, "filter-buffer") ||
2825 g_str_equal(type, "filter-dump") ||
2826 g_str_equal(type, "filter-mirror") ||
2827 g_str_equal(type, "filter-redirector")) {
2836 * The remainder of object creation happens after the
2837 * creation of chardev, fsdev, net clients and device data types.
2839 static bool object_create_delayed(const char *type)
2841 return !object_create_initial(type);
2845 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2849 const char *mem_str;
2850 const char *maxmem_str, *slots_str;
2851 const ram_addr_t default_ram_size = mc->default_ram_size;
2852 QemuOpts *opts = qemu_find_opts_singleton("memory");
2855 loc_push_none(&loc);
2856 qemu_opts_loc_restore(opts);
2859 mem_str = qemu_opt_get(opts, "size");
2862 error_report("missing 'size' option value");
2866 sz = qemu_opt_get_size(opts, "size", ram_size);
2868 /* Fix up legacy suffix-less format */
2869 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2870 uint64_t overflow_check = sz;
2873 if ((sz >> 20) != overflow_check) {
2874 error_report("too large 'size' option value");
2880 /* backward compatibility behaviour for case "-m 0" */
2882 sz = default_ram_size;
2885 sz = QEMU_ALIGN_UP(sz, 8192);
2887 if (ram_size != sz) {
2888 error_report("ram size too large");
2892 /* store value for the future use */
2893 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2894 *maxram_size = ram_size;
2896 maxmem_str = qemu_opt_get(opts, "maxmem");
2897 slots_str = qemu_opt_get(opts, "slots");
2898 if (maxmem_str && slots_str) {
2901 sz = qemu_opt_get_size(opts, "maxmem", 0);
2902 slots = qemu_opt_get_number(opts, "slots", 0);
2903 if (sz < ram_size) {
2904 error_report("invalid value of -m option maxmem: "
2905 "maximum memory size (0x%" PRIx64 ") must be at least "
2906 "the initial memory size (0x" RAM_ADDR_FMT ")",
2909 } else if (sz > ram_size) {
2911 error_report("invalid value of -m option: maxmem was "
2912 "specified, but no hotplug slots were specified");
2916 error_report("invalid value of -m option maxmem: "
2917 "memory slots were specified but maximum memory size "
2918 "(0x%" PRIx64 ") is equal to the initial memory size "
2919 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2925 } else if ((!maxmem_str && slots_str) ||
2926 (maxmem_str && !slots_str)) {
2927 error_report("invalid -m option value: missing "
2928 "'%s' option", slots_str ? "maxmem" : "slots");
2935 int main(int argc, char **argv, char **envp)
2938 int snapshot, linux_boot;
2939 const char *initrd_filename;
2940 const char *kernel_filename, *kernel_cmdline;
2941 const char *boot_order = NULL;
2942 const char *boot_once = NULL;
2944 int cyls, heads, secs, translation;
2945 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2946 QemuOptsList *olist;
2949 const char *loadvm = NULL;
2950 MachineClass *machine_class;
2951 const char *cpu_model;
2952 const char *vga_model = NULL;
2953 const char *qtest_chrdev = NULL;
2954 const char *qtest_log = NULL;
2955 const char *pid_file = NULL;
2956 const char *incoming = NULL;
2957 int show_vnc_port = 0;
2958 bool defconfig = true;
2959 bool userconfig = true;
2960 bool nographic = false;
2961 DisplayType display_type = DT_DEFAULT;
2962 int display_remote = 0;
2963 const char *log_mask = NULL;
2964 const char *log_file = NULL;
2965 char *trace_file = NULL;
2966 ram_addr_t maxram_size;
2967 uint64_t ram_slots = 0;
2968 FILE *vmstate_dump_file = NULL;
2969 Error *main_loop_err = NULL;
2972 qemu_init_cpu_loop();
2973 qemu_mutex_lock_iothread();
2975 atexit(qemu_run_exit_notifiers);
2976 error_set_progname(argv[0]);
2977 qemu_init_exec_dir(argv[0]);
2979 module_call_init(MODULE_INIT_QOM);
2981 qemu_add_opts(&qemu_drive_opts);
2982 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2983 qemu_add_drive_opts(&qemu_common_drive_opts);
2984 qemu_add_drive_opts(&qemu_drive_opts);
2985 qemu_add_opts(&qemu_chardev_opts);
2986 qemu_add_opts(&qemu_device_opts);
2987 qemu_add_opts(&qemu_netdev_opts);
2988 qemu_add_opts(&qemu_net_opts);
2989 qemu_add_opts(&qemu_rtc_opts);
2990 qemu_add_opts(&qemu_global_opts);
2991 qemu_add_opts(&qemu_mon_opts);
2992 qemu_add_opts(&qemu_trace_opts);
2993 qemu_add_opts(&qemu_option_rom_opts);
2994 qemu_add_opts(&qemu_machine_opts);
2995 qemu_add_opts(&qemu_mem_opts);
2996 qemu_add_opts(&qemu_smp_opts);
2997 qemu_add_opts(&qemu_boot_opts);
2998 qemu_add_opts(&qemu_sandbox_opts);
2999 qemu_add_opts(&qemu_add_fd_opts);
3000 qemu_add_opts(&qemu_object_opts);
3001 qemu_add_opts(&qemu_tpmdev_opts);
3002 qemu_add_opts(&qemu_realtime_opts);
3003 qemu_add_opts(&qemu_msg_opts);
3004 qemu_add_opts(&qemu_name_opts);
3005 qemu_add_opts(&qemu_numa_opts);
3006 qemu_add_opts(&qemu_icount_opts);
3007 qemu_add_opts(&qemu_semihosting_config_opts);
3008 qemu_add_opts(&qemu_fw_cfg_opts);
3009 module_call_init(MODULE_INIT_OPTS);
3013 if (qcrypto_init(&err) < 0) {
3014 error_reportf_err(err, "cannot initialize crypto: ");
3017 rtc_clock = QEMU_CLOCK_HOST;
3019 QLIST_INIT (&vm_change_state_head);
3020 os_setup_early_signal_handling();
3024 cyls = heads = secs = 0;
3025 translation = BIOS_ATA_TRANSLATION_AUTO;
3029 bdrv_init_with_whitelist();
3033 /* first pass of option parsing */
3035 while (optind < argc) {
3036 if (argv[optind][0] != '-') {
3040 const QEMUOption *popt;
3042 popt = lookup_opt(argc, argv, &optarg, &optind);
3043 switch (popt->index) {
3044 case QEMU_OPTION_nodefconfig:
3047 case QEMU_OPTION_nouserconfig:
3056 ret = qemu_read_default_config_files(userconfig);
3062 /* second pass of option parsing */
3067 if (argv[optind][0] != '-') {
3068 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3070 const QEMUOption *popt;
3072 popt = lookup_opt(argc, argv, &optarg, &optind);
3073 if (!(popt->arch_mask & arch_type)) {
3074 printf("Option %s not supported for this target\n", popt->name);
3077 switch(popt->index) {
3078 case QEMU_OPTION_no_kvm_irqchip: {
3079 olist = qemu_find_opts("machine");
3080 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3083 case QEMU_OPTION_cpu:
3084 /* hw initialization will check this */
3087 case QEMU_OPTION_hda:
3091 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3093 snprintf(buf, sizeof(buf),
3094 "%s,cyls=%d,heads=%d,secs=%d%s",
3095 HD_OPTS , cyls, heads, secs,
3096 translation == BIOS_ATA_TRANSLATION_LBA ?
3098 translation == BIOS_ATA_TRANSLATION_NONE ?
3099 ",trans=none" : "");
3100 drive_add(IF_DEFAULT, 0, optarg, buf);
3103 case QEMU_OPTION_hdb:
3104 case QEMU_OPTION_hdc:
3105 case QEMU_OPTION_hdd:
3106 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3109 case QEMU_OPTION_drive:
3110 if (drive_def(optarg) == NULL) {
3114 case QEMU_OPTION_set:
3115 if (qemu_set_option(optarg) != 0)
3118 case QEMU_OPTION_global:
3119 if (qemu_global_option(optarg) != 0)
3122 case QEMU_OPTION_mtdblock:
3123 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3125 case QEMU_OPTION_sd:
3126 drive_add(IF_SD, -1, optarg, SD_OPTS);
3128 case QEMU_OPTION_pflash:
3129 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3131 case QEMU_OPTION_snapshot:
3134 case QEMU_OPTION_hdachs:
3138 cyls = strtol(p, (char **)&p, 0);
3139 if (cyls < 1 || cyls > 16383)
3144 heads = strtol(p, (char **)&p, 0);
3145 if (heads < 1 || heads > 16)
3150 secs = strtol(p, (char **)&p, 0);
3151 if (secs < 1 || secs > 63)
3155 if (!strcmp(p, "large")) {
3156 translation = BIOS_ATA_TRANSLATION_LARGE;
3157 } else if (!strcmp(p, "rechs")) {
3158 translation = BIOS_ATA_TRANSLATION_RECHS;
3159 } else if (!strcmp(p, "none")) {
3160 translation = BIOS_ATA_TRANSLATION_NONE;
3161 } else if (!strcmp(p, "lba")) {
3162 translation = BIOS_ATA_TRANSLATION_LBA;
3163 } else if (!strcmp(p, "auto")) {
3164 translation = BIOS_ATA_TRANSLATION_AUTO;
3168 } else if (*p != '\0') {
3170 error_report("invalid physical CHS format");
3173 if (hda_opts != NULL) {
3174 qemu_opt_set_number(hda_opts, "cyls", cyls,
3176 qemu_opt_set_number(hda_opts, "heads", heads,
3178 qemu_opt_set_number(hda_opts, "secs", secs,
3180 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3181 qemu_opt_set(hda_opts, "trans", "large",
3183 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3184 qemu_opt_set(hda_opts, "trans", "rechs",
3186 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3187 qemu_opt_set(hda_opts, "trans", "lba",
3189 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3190 qemu_opt_set(hda_opts, "trans", "none",
3196 case QEMU_OPTION_numa:
3197 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3203 case QEMU_OPTION_display:
3204 display_type = select_display(optarg);
3206 case QEMU_OPTION_nographic:
3207 olist = qemu_find_opts("machine");
3208 qemu_opts_parse_noisily(olist, "graphics=off", false);
3210 display_type = DT_NONE;
3212 case QEMU_OPTION_curses:
3213 #ifdef CONFIG_CURSES
3214 display_type = DT_CURSES;
3216 error_report("curses support is disabled");
3220 case QEMU_OPTION_portrait:
3221 graphic_rotate = 90;
3223 case QEMU_OPTION_rotate:
3224 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3225 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3226 graphic_rotate != 180 && graphic_rotate != 270) {
3227 error_report("only 90, 180, 270 deg rotation is available");
3231 case QEMU_OPTION_kernel:
3232 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3235 case QEMU_OPTION_initrd:
3236 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3239 case QEMU_OPTION_append:
3240 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3243 case QEMU_OPTION_dtb:
3244 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3247 case QEMU_OPTION_cdrom:
3248 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3250 case QEMU_OPTION_boot:
3251 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3257 case QEMU_OPTION_fda:
3258 case QEMU_OPTION_fdb:
3259 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3262 case QEMU_OPTION_no_fd_bootchk:
3265 case QEMU_OPTION_netdev:
3267 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3271 case QEMU_OPTION_net:
3273 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3277 #ifdef CONFIG_LIBISCSI
3278 case QEMU_OPTION_iscsi:
3279 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3287 case QEMU_OPTION_tftp:
3288 error_report("The -tftp option is deprecated. "
3289 "Please use '-netdev user,tftp=...' instead.");
3290 legacy_tftp_prefix = optarg;
3292 case QEMU_OPTION_bootp:
3293 error_report("The -bootp option is deprecated. "
3294 "Please use '-netdev user,bootfile=...' instead.");
3295 legacy_bootp_filename = optarg;
3297 case QEMU_OPTION_redir:
3298 error_report("The -redir option is deprecated. "
3299 "Please use '-netdev user,hostfwd=...' instead.");
3300 if (net_slirp_redir(optarg) < 0)
3304 case QEMU_OPTION_bt:
3305 add_device_config(DEV_BT, optarg);
3307 case QEMU_OPTION_audio_help:
3311 case QEMU_OPTION_soundhw:
3312 select_soundhw (optarg);
3317 case QEMU_OPTION_version:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3329 case QEMU_OPTION_tpmdev:
3330 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3335 case QEMU_OPTION_mempath:
3338 case QEMU_OPTION_mem_prealloc:
3347 case QEMU_OPTION_DFILTER:
3348 qemu_set_dfilter_ranges(optarg);
3351 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3353 case QEMU_OPTION_gdb:
3354 add_device_config(DEV_GDB, optarg);
3357 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3358 data_dir[data_dir_idx++] = optarg;
3361 case QEMU_OPTION_bios:
3362 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3365 case QEMU_OPTION_singlestep:
3372 keyboard_layout = optarg;
3374 case QEMU_OPTION_localtime:
3377 case QEMU_OPTION_vga:
3386 w = strtol(p, (char **)&p, 10);
3389 error_report("invalid resolution or depth");
3395 h = strtol(p, (char **)&p, 10);
3400 depth = strtol(p, (char **)&p, 10);
3401 if (depth != 8 && depth != 15 && depth != 16 &&
3402 depth != 24 && depth != 32)
3404 } else if (*p == '\0') {
3405 depth = graphic_depth;
3412 graphic_depth = depth;
3415 case QEMU_OPTION_echr:
3418 term_escape_char = strtol(optarg, &r, 0);
3420 printf("Bad argument to echr\n");
3423 case QEMU_OPTION_monitor:
3424 default_monitor = 0;
3425 if (strncmp(optarg, "none", 4)) {
3426 monitor_parse(optarg, "readline", false);
3429 case QEMU_OPTION_qmp:
3430 monitor_parse(optarg, "control", false);
3431 default_monitor = 0;
3433 case QEMU_OPTION_qmp_pretty:
3434 monitor_parse(optarg, "control", true);
3435 default_monitor = 0;
3437 case QEMU_OPTION_mon:
3438 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3443 default_monitor = 0;
3445 case QEMU_OPTION_chardev:
3446 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3452 case QEMU_OPTION_fsdev:
3453 olist = qemu_find_opts("fsdev");
3455 error_report("fsdev support is disabled");
3458 opts = qemu_opts_parse_noisily(olist, optarg, true);
3463 case QEMU_OPTION_virtfs: {
3466 const char *writeout, *sock_fd, *socket;
3468 olist = qemu_find_opts("virtfs");
3470 error_report("virtfs support is disabled");
3473 opts = qemu_opts_parse_noisily(olist, optarg, true);
3478 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3479 qemu_opt_get(opts, "mount_tag") == NULL) {
3480 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3483 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3484 qemu_opt_get(opts, "mount_tag"),
3487 error_report("duplicate fsdev id: %s",
3488 qemu_opt_get(opts, "mount_tag"));
3492 writeout = qemu_opt_get(opts, "writeout");
3494 #ifdef CONFIG_SYNC_FILE_RANGE
3495 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3497 error_report("writeout=immediate not supported "
3498 "on this platform");
3502 qemu_opt_set(fsdev, "fsdriver",
3503 qemu_opt_get(opts, "fsdriver"), &error_abort);
3504 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3506 qemu_opt_set(fsdev, "security_model",
3507 qemu_opt_get(opts, "security_model"),
3509 socket = qemu_opt_get(opts, "socket");
3511 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3513 sock_fd = qemu_opt_get(opts, "sock_fd");
3515 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3518 qemu_opt_set_bool(fsdev, "readonly",
3519 qemu_opt_get_bool(opts, "readonly", 0),
3521 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3523 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3524 qemu_opt_set(device, "fsdev",
3525 qemu_opt_get(opts, "mount_tag"), &error_abort);
3526 qemu_opt_set(device, "mount_tag",
3527 qemu_opt_get(opts, "mount_tag"), &error_abort);
3530 case QEMU_OPTION_virtfs_synth: {
3534 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3537 error_report("duplicate option: %s", "virtfs_synth");
3540 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3542 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3544 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3545 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3546 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3549 case QEMU_OPTION_serial:
3550 add_device_config(DEV_SERIAL, optarg);
3552 if (strncmp(optarg, "mon:", 4) == 0) {
3553 default_monitor = 0;
3556 case QEMU_OPTION_watchdog:
3558 error_report("only one watchdog option may be given");
3563 case QEMU_OPTION_watchdog_action:
3564 if (select_watchdog_action(optarg) == -1) {
3565 error_report("unknown -watchdog-action parameter");
3569 case QEMU_OPTION_virtiocon:
3570 add_device_config(DEV_VIRTCON, optarg);
3571 default_virtcon = 0;
3572 if (strncmp(optarg, "mon:", 4) == 0) {
3573 default_monitor = 0;
3576 case QEMU_OPTION_parallel:
3577 add_device_config(DEV_PARALLEL, optarg);
3578 default_parallel = 0;
3579 if (strncmp(optarg, "mon:", 4) == 0) {
3580 default_monitor = 0;
3583 case QEMU_OPTION_debugcon:
3584 add_device_config(DEV_DEBUGCON, optarg);
3586 case QEMU_OPTION_loadvm:
3589 case QEMU_OPTION_full_screen:
3592 case QEMU_OPTION_no_frame:
3595 case QEMU_OPTION_alt_grab:
3598 case QEMU_OPTION_ctrl_grab:
3601 case QEMU_OPTION_no_quit:
3604 case QEMU_OPTION_sdl:
3606 display_type = DT_SDL;
3609 error_report("SDL support is disabled");
3612 case QEMU_OPTION_pidfile:
3615 case QEMU_OPTION_win2k_hack:
3616 win2k_install_hack = 1;
3618 case QEMU_OPTION_rtc_td_hack: {
3619 static GlobalProperty slew_lost_ticks = {
3620 .driver = "mc146818rtc",
3621 .property = "lost_tick_policy",
3625 qdev_prop_register_global(&slew_lost_ticks);
3628 case QEMU_OPTION_acpitable:
3629 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3634 do_acpitable_option(opts);
3636 case QEMU_OPTION_smbios:
3637 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3642 do_smbios_option(opts);
3644 case QEMU_OPTION_fwcfg:
3645 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3651 case QEMU_OPTION_enable_kvm:
3652 olist = qemu_find_opts("machine");
3653 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3656 case QEMU_OPTION_machine:
3657 olist = qemu_find_opts("machine");
3658 opts = qemu_opts_parse_noisily(olist, optarg, true);
3663 case QEMU_OPTION_no_kvm:
3664 olist = qemu_find_opts("machine");
3665 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3667 case QEMU_OPTION_no_kvm_pit: {
3668 error_report("warning: ignoring deprecated option");
3671 case QEMU_OPTION_no_kvm_pit_reinjection: {
3672 static GlobalProperty kvm_pit_lost_tick_policy = {
3673 .driver = "kvm-pit",
3674 .property = "lost_tick_policy",
3678 error_report("warning: deprecated, replaced by "
3679 "-global kvm-pit.lost_tick_policy=discard");
3680 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3683 case QEMU_OPTION_usb:
3684 olist = qemu_find_opts("machine");
3685 qemu_opts_parse_noisily(olist, "usb=on", false);
3687 case QEMU_OPTION_usbdevice:
3688 olist = qemu_find_opts("machine");
3689 qemu_opts_parse_noisily(olist, "usb=on", false);
3690 add_device_config(DEV_USB, optarg);
3692 case QEMU_OPTION_device:
3693 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3698 case QEMU_OPTION_smp:
3699 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3704 case QEMU_OPTION_vnc:
3705 vnc_parse(optarg, &error_fatal);
3707 case QEMU_OPTION_no_acpi:
3710 case QEMU_OPTION_no_hpet:
3713 case QEMU_OPTION_balloon:
3714 if (balloon_parse(optarg) < 0) {
3715 error_report("unknown -balloon argument %s", optarg);
3719 case QEMU_OPTION_no_reboot:
3722 case QEMU_OPTION_no_shutdown:
3725 case QEMU_OPTION_show_cursor:
3728 case QEMU_OPTION_uuid:
3729 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3730 error_report("failed to parse UUID string: wrong format");
3733 qemu_uuid_set = true;
3735 case QEMU_OPTION_option_rom:
3736 if (nb_option_roms >= MAX_OPTION_ROMS) {
3737 error_report("too many option ROMs");
3740 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3745 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3746 option_rom[nb_option_roms].bootindex =
3747 qemu_opt_get_number(opts, "bootindex", -1);
3748 if (!option_rom[nb_option_roms].name) {
3749 error_report("Option ROM file is not specified");
3754 case QEMU_OPTION_semihosting:
3755 semihosting.enabled = true;
3756 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3758 case QEMU_OPTION_semihosting_config:
3759 semihosting.enabled = true;
3760 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3763 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3765 const char *target = qemu_opt_get(opts, "target");
3766 if (target != NULL) {
3767 if (strcmp("native", target) == 0) {
3768 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3769 } else if (strcmp("gdb", target) == 0) {
3770 semihosting.target = SEMIHOSTING_TARGET_GDB;
3771 } else if (strcmp("auto", target) == 0) {
3772 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3774 error_report("unsupported semihosting-config %s",
3779 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3781 /* Set semihosting argument count and vector */
3782 qemu_opt_foreach(opts, add_semihosting_arg,
3783 &semihosting, NULL);
3785 error_report("unsupported semihosting-config %s", optarg);
3789 case QEMU_OPTION_tdf:
3790 error_report("warning: ignoring deprecated option");
3792 case QEMU_OPTION_name:
3793 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3799 case QEMU_OPTION_prom_env:
3800 if (nb_prom_envs >= MAX_PROM_ENVS) {
3801 error_report("too many prom variables");
3804 prom_envs[nb_prom_envs] = optarg;
3807 case QEMU_OPTION_old_param:
3810 case QEMU_OPTION_clock:
3811 /* Clock options no longer exist. Keep this option for
3812 * backward compatibility.
3815 case QEMU_OPTION_startdate:
3816 configure_rtc_date_offset(optarg, 1);
3818 case QEMU_OPTION_rtc:
3819 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3824 configure_rtc(opts);
3826 case QEMU_OPTION_tb_size:
3827 tcg_tb_size = strtol(optarg, NULL, 0);
3828 if (tcg_tb_size < 0) {
3832 case QEMU_OPTION_icount:
3833 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3839 case QEMU_OPTION_incoming:
3841 runstate_set(RUN_STATE_INMIGRATE);
3845 case QEMU_OPTION_nodefaults:
3848 case QEMU_OPTION_xen_domid:
3849 if (!(xen_available())) {
3850 printf("Option %s not supported for this target\n", popt->name);
3853 xen_domid = atoi(optarg);
3855 case QEMU_OPTION_xen_create:
3856 if (!(xen_available())) {
3857 printf("Option %s not supported for this target\n", popt->name);
3860 xen_mode = XEN_CREATE;
3862 case QEMU_OPTION_xen_attach:
3863 if (!(xen_available())) {
3864 printf("Option %s not supported for this target\n", popt->name);
3867 xen_mode = XEN_ATTACH;
3869 case QEMU_OPTION_trace:
3871 opts = qemu_opts_parse_noisily(qemu_find_opts("trace"),
3876 if (qemu_opt_get(opts, "enable")) {
3877 trace_enable_events(qemu_opt_get(opts, "enable"));
3879 trace_init_events(qemu_opt_get(opts, "events"));
3883 trace_file = g_strdup(qemu_opt_get(opts, "file"));
3884 qemu_opts_del(opts);
3887 case QEMU_OPTION_readconfig:
3889 int ret = qemu_read_config_file(optarg);
3891 error_report("read config %s: %s", optarg,
3897 case QEMU_OPTION_spice:
3898 olist = qemu_find_opts("spice");
3900 error_report("spice support is disabled");
3903 opts = qemu_opts_parse_noisily(olist, optarg, false);
3909 case QEMU_OPTION_writeconfig:
3912 if (strcmp(optarg, "-") == 0) {
3915 fp = fopen(optarg, "w");
3917 error_report("open %s: %s", optarg,
3922 qemu_config_write(fp);
3928 case QEMU_OPTION_qtest:
3929 qtest_chrdev = optarg;
3931 case QEMU_OPTION_qtest_log:
3934 case QEMU_OPTION_sandbox:
3935 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3941 case QEMU_OPTION_add_fd:
3943 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3949 error_report("File descriptor passing is disabled on this "
3954 case QEMU_OPTION_object:
3955 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3961 case QEMU_OPTION_realtime:
3962 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3967 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3969 case QEMU_OPTION_msg:
3970 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3975 configure_msg(opts);
3977 case QEMU_OPTION_dump_vmstate:
3978 if (vmstate_dump_file) {
3979 error_report("only one '-dump-vmstate' "
3980 "option may be given");
3983 vmstate_dump_file = fopen(optarg, "w");
3984 if (vmstate_dump_file == NULL) {
3985 error_report("open %s: %s", optarg, strerror(errno));
3990 os_parse_cmd_args(popt->index, optarg);
3995 * Clear error location left behind by the loop.
3996 * Best done right after the loop. Do not insert code here!
4000 replay_configure(icount_opts);
4002 machine_class = select_machine();
4004 set_memory_options(&ram_slots, &maxram_size, machine_class);
4008 if (qemu_init_main_loop(&main_loop_err)) {
4009 error_report_err(main_loop_err);
4013 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4014 parse_sandbox, NULL, NULL)) {
4018 if (qemu_opts_foreach(qemu_find_opts("name"),
4019 parse_name, NULL, NULL)) {
4024 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4025 parse_add_fd, NULL, NULL)) {
4029 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4030 cleanup_add_fd, NULL, NULL)) {
4035 current_machine = MACHINE(object_new(object_class_get_name(
4036 OBJECT_CLASS(machine_class))));
4037 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4040 object_property_add_child(object_get_root(), "machine",
4041 OBJECT(current_machine), &error_abort);
4042 cpu_exec_init_all();
4044 if (machine_class->hw_version) {
4045 qemu_set_hw_version(machine_class->hw_version);
4048 if (cpu_model && is_help_option(cpu_model)) {
4049 list_cpus(stdout, &fprintf, cpu_model);
4053 if (!trace_init_backends()) {
4056 trace_init_file(trace_file);
4058 /* Open the logfile at this point and set the log mask if necessary.
4061 qemu_set_log_filename(log_file);
4066 mask = qemu_str_to_log_mask(log_mask);
4068 qemu_print_log_usage(stdout);
4076 /* If no data_dir is specified then try to find it relative to the
4078 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4079 data_dir[data_dir_idx] = os_find_datadir();
4080 if (data_dir[data_dir_idx] != NULL) {
4084 /* If all else fails use the install path specified when building. */
4085 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4086 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4089 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4091 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4092 if (max_cpus > machine_class->max_cpus) {
4093 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4094 "supported by machine '%s' (%d)", max_cpus,
4095 machine_class->name, machine_class->max_cpus);
4100 * Get the default machine options from the machine if it is not already
4101 * specified either by the configuration file or by the command line.
4103 if (machine_class->default_machine_opts) {
4104 qemu_opts_set_defaults(qemu_find_opts("machine"),
4105 machine_class->default_machine_opts, 0);
4108 qemu_opts_foreach(qemu_find_opts("device"),
4109 default_driver_check, NULL, NULL);
4110 qemu_opts_foreach(qemu_find_opts("global"),
4111 default_driver_check, NULL, NULL);
4113 if (!vga_model && !default_vga) {
4114 vga_interface_type = VGA_DEVICE;
4116 if (!has_defaults || machine_class->no_serial) {
4119 if (!has_defaults || machine_class->no_parallel) {
4120 default_parallel = 0;
4122 if (!has_defaults || !machine_class->use_virtcon) {
4123 default_virtcon = 0;
4125 if (!has_defaults || !machine_class->use_sclp) {
4128 if (!has_defaults || machine_class->no_floppy) {
4131 if (!has_defaults || machine_class->no_cdrom) {
4134 if (!has_defaults || machine_class->no_sdcard) {
4137 if (!has_defaults) {
4138 default_monitor = 0;
4143 if (is_daemonized()) {
4144 /* According to documentation and historically, -nographic redirects
4145 * serial port, parallel port and monitor to stdio, which does not work
4146 * with -daemonize. We can redirect these to null instead, but since
4147 * -nographic is legacy, let's just error out.
4148 * We disallow -nographic only if all other ports are not redirected
4149 * explicitly, to not break existing legacy setups which uses
4150 * -nographic _and_ redirects all ports explicitly - this is valid
4151 * usage, -nographic is just a no-op in this case.
4154 && (default_parallel || default_serial
4155 || default_monitor || default_virtcon)) {
4156 error_report("-nographic cannot be used with -daemonize");
4159 #ifdef CONFIG_CURSES
4160 if (display_type == DT_CURSES) {
4161 error_report("curses display cannot be used with -daemonize");
4168 if (default_parallel)
4169 add_device_config(DEV_PARALLEL, "null");
4170 if (default_serial && default_monitor) {
4171 add_device_config(DEV_SERIAL, "mon:stdio");
4172 } else if (default_virtcon && default_monitor) {
4173 add_device_config(DEV_VIRTCON, "mon:stdio");
4174 } else if (default_sclp && default_monitor) {
4175 add_device_config(DEV_SCLP, "mon:stdio");
4178 add_device_config(DEV_SERIAL, "stdio");
4179 if (default_virtcon)
4180 add_device_config(DEV_VIRTCON, "stdio");
4182 add_device_config(DEV_SCLP, "stdio");
4184 if (default_monitor)
4185 monitor_parse("stdio", "readline", false);
4189 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4190 if (default_parallel)
4191 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4192 if (default_monitor)
4193 monitor_parse("vc:80Cx24C", "readline", false);
4194 if (default_virtcon)
4195 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4197 add_device_config(DEV_SCLP, "vc:80Cx24C");
4201 #if defined(CONFIG_VNC)
4202 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4206 if (display_type == DT_DEFAULT && !display_remote) {
4207 #if defined(CONFIG_GTK)
4208 display_type = DT_GTK;
4209 #elif defined(CONFIG_SDL)
4210 display_type = DT_SDL;
4211 #elif defined(CONFIG_COCOA)
4212 display_type = DT_COCOA;
4213 #elif defined(CONFIG_VNC)
4214 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4217 display_type = DT_NONE;
4221 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4222 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4223 "for SDL, ignoring option");
4225 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4226 error_report("-no-quit is only valid for GTK and SDL, "
4230 if (display_type == DT_GTK) {
4231 early_gtk_display_init(request_opengl);
4234 if (display_type == DT_SDL) {
4235 sdl_display_early_init(request_opengl);
4238 if (request_opengl == 1 && display_opengl == 0) {
4239 #if defined(CONFIG_OPENGL)
4240 error_report("OpenGL is not supported by the display");
4242 error_report("OpenGL support is disabled");
4250 if (qemu_opts_foreach(qemu_find_opts("object"),
4251 user_creatable_add_opts_foreach,
4252 object_create_initial, NULL)) {
4256 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4257 chardev_init_func, NULL, NULL)) {
4261 #ifdef CONFIG_VIRTFS
4262 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4263 fsdev_init_func, NULL, NULL)) {
4268 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4269 error_report("could not acquire pid file: %s", strerror(errno));
4273 if (qemu_opts_foreach(qemu_find_opts("device"),
4274 device_help_func, NULL, NULL)) {
4278 machine_opts = qemu_get_machine_opts();
4279 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4281 object_unref(OBJECT(current_machine));
4285 configure_accelerator(current_machine);
4288 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4291 machine_opts = qemu_get_machine_opts();
4292 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4293 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4294 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4295 bios_name = qemu_opt_get(machine_opts, "firmware");
4297 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4299 boot_order = qemu_opt_get(opts, "order");
4301 validate_bootdevices(boot_order, &error_fatal);
4304 boot_once = qemu_opt_get(opts, "once");
4306 validate_bootdevices(boot_once, &error_fatal);
4309 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4310 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4314 boot_order = machine_class->default_boot_order;
4317 if (!kernel_cmdline) {
4318 kernel_cmdline = "";
4319 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4322 linux_boot = (kernel_filename != NULL);
4324 if (!linux_boot && *kernel_cmdline != '\0') {
4325 error_report("-append only allowed with -kernel option");
4329 if (!linux_boot && initrd_filename != NULL) {
4330 error_report("-initrd only allowed with -kernel option");
4334 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4335 error_report("-dtb only allowed with -kernel option");
4339 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4340 /* fall back to the -kernel/-append */
4341 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4344 os_set_line_buffering();
4346 /* spice needs the timers to be initialized by this point */
4351 if (kvm_enabled() || xen_enabled()) {
4352 error_report("-icount is not allowed with kvm or xen");
4355 configure_icount(icount_opts, &error_abort);
4356 qemu_opts_del(icount_opts);
4359 /* clean up network at qemu process termination */
4360 atexit(&net_cleanup);
4363 QemuOptsList *net = qemu_find_opts("net");
4364 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4366 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4370 if (net_init_clients() < 0) {
4374 if (qemu_opts_foreach(qemu_find_opts("object"),
4375 user_creatable_add_opts_foreach,
4376 object_create_delayed, NULL)) {
4381 if (tpm_init() < 0) {
4386 /* init the bluetooth world */
4387 if (foreach_device_config(DEV_BT, bt_parse))
4390 if (!xen_enabled()) {
4391 /* On 32-bit hosts, QEMU is limited by virtual address space */
4392 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4393 error_report("at most 2047 MB RAM can be simulated");
4401 /* If the currently selected machine wishes to override the units-per-bus
4402 * property of its default HBA interface type, do so now. */
4403 if (machine_class->units_per_default_bus) {
4404 override_max_devs(machine_class->block_default_type,
4405 machine_class->units_per_default_bus);
4408 /* open the virtual block devices */
4409 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4410 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4413 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4414 &machine_class->block_default_type, NULL)) {
4418 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4420 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4421 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4423 parse_numa_opts(machine_class);
4425 if (qemu_opts_foreach(qemu_find_opts("mon"),
4426 mon_init_func, NULL, NULL)) {
4430 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4432 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4434 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4436 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4439 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4442 /* If no default VGA is requested, the default is "none". */
4444 if (machine_class->default_display) {
4445 vga_model = machine_class->default_display;
4446 } else if (vga_interface_available(VGA_CIRRUS)) {
4447 vga_model = "cirrus";
4448 } else if (vga_interface_available(VGA_STD)) {
4453 select_vgahw(vga_model);
4457 i = select_watchdog(watchdog);
4459 exit (i == 1 ? 1 : 0);
4462 if (machine_class->compat_props) {
4464 for (i = 0; i < machine_class->compat_props->len; i++) {
4465 p = g_array_index(machine_class->compat_props, GlobalProperty *, i);
4466 qdev_prop_register_global(p);
4471 /* This checkpoint is required by replay to separate prior clock
4472 reading from the other reads, because timer polling functions query
4473 clock values from the log. */
4474 replay_checkpoint(CHECKPOINT_INIT);
4475 qdev_machine_init();
4477 current_machine->ram_size = ram_size;
4478 current_machine->maxram_size = maxram_size;
4479 current_machine->ram_slots = ram_slots;
4480 current_machine->boot_order = boot_order;
4481 current_machine->cpu_model = cpu_model;
4483 machine_class->init(current_machine);
4489 cpu_synchronize_all_post_init();
4491 numa_post_machine_init();
4493 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4494 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4498 /* init USB devices */
4499 if (machine_usb(current_machine)) {
4500 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4504 /* Check if IGD GFX passthrough. */
4507 /* init generic devices */
4508 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4509 if (qemu_opts_foreach(qemu_find_opts("device"),
4510 device_init_func, NULL, NULL)) {
4513 rom_reset_order_override();
4515 /* Did we create any drives that we failed to create a device for? */
4516 drive_check_orphaned();
4518 /* Don't warn about the default network setup that you get if
4519 * no command line -net or -netdev options are specified. There
4520 * are two cases that we would otherwise complain about:
4521 * (1) board doesn't support a NIC but the implicit "-net nic"
4523 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4524 * sets up a nic that isn't connected to anything.
4527 net_check_clients();
4532 qemu_boot_set(boot_once, &error_fatal);
4533 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4536 ds = init_displaystate();
4538 /* init local displays */
4539 switch (display_type) {
4541 curses_display_init(ds, full_screen);
4544 sdl_display_init(ds, full_screen, no_frame);
4547 cocoa_display_init(ds, full_screen);
4550 gtk_display_init(ds, full_screen, grab_on_hover);
4556 /* must be after terminal init, SDL library changes signal handlers */
4557 os_setup_signal_handling();
4559 /* init remote displays */
4560 qemu_opts_foreach(qemu_find_opts("vnc"),
4561 vnc_init_func, NULL, NULL);
4562 if (show_vnc_port) {
4563 char *ret = vnc_display_local_addr("default");
4564 printf("VNC server running on '%s'\n", ret);
4569 qemu_spice_display_init();
4572 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4576 qdev_machine_creation_done();
4578 /* TODO: once all bus devices are qdevified, this should be done
4579 * when bus is created by qdev.c */
4580 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4581 qemu_run_machine_init_done_notifiers();
4583 if (rom_check_and_register_reset() != 0) {
4584 error_report("rom check and register reset failed");
4590 /* This checkpoint is required by replay to separate prior clock
4591 reading from the other reads, because timer polling functions query
4592 clock values from the log. */
4593 replay_checkpoint(CHECKPOINT_RESET);
4594 qemu_system_reset(VMRESET_SILENT);
4595 register_global_state();
4597 if (load_vmstate(loadvm) < 0) {
4602 qdev_prop_check_globals();
4603 if (vmstate_dump_file) {
4605 dump_vmstate_json_to_file(vmstate_dump_file);
4610 Error *local_err = NULL;
4611 qemu_start_incoming_migration(incoming, &local_err);
4613 error_reportf_err(local_err, "-incoming %s: ", incoming);
4616 } else if (autostart) {
4623 replay_disable_events();