4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
95 #include "fsdev/qemu-fsdev.h"
97 #include "sysemu/qtest.h"
99 #include "accel/tcg/perf.h"
102 #include "disas/disas.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
137 #define MAX_VIRTIO_CONSOLES 1
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
147 typedef struct ObjectOption {
149 QTAILQ_ENTRY(ObjectOption) next;
152 typedef struct DeviceOption {
155 QTAILQ_ENTRY(DeviceOption) next;
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 { .driver = "virtio-vga-gl", .flag = &default_vga },
219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
222 static QemuOptsList qemu_rtc_opts = {
224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
229 .type = QEMU_OPT_STRING,
232 .type = QEMU_OPT_STRING,
235 .type = QEMU_OPT_STRING,
237 { /* end of list */ }
241 static QemuOptsList qemu_option_rom_opts = {
242 .name = "option-rom",
243 .implied_opt_name = "romfile",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
248 .type = QEMU_OPT_NUMBER,
251 .type = QEMU_OPT_STRING,
253 { /* end of list */ }
257 static QemuOptsList qemu_accel_opts = {
259 .implied_opt_name = "accel",
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting accelerator properties
271 static QemuOptsList qemu_boot_opts = {
273 .implied_opt_name = "order",
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
279 .type = QEMU_OPT_STRING,
282 .type = QEMU_OPT_STRING,
285 .type = QEMU_OPT_BOOL,
288 .type = QEMU_OPT_STRING,
290 .name = "splash-time",
291 .type = QEMU_OPT_NUMBER,
293 .name = "reboot-timeout",
294 .type = QEMU_OPT_NUMBER,
297 .type = QEMU_OPT_BOOL,
303 static QemuOptsList qemu_add_fd_opts = {
305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
309 .type = QEMU_OPT_NUMBER,
310 .help = "file descriptor of which a duplicate is added to fd set",
313 .type = QEMU_OPT_NUMBER,
314 .help = "ID of the fd set to add fd to",
317 .type = QEMU_OPT_STRING,
318 .help = "free-form string used to describe fd",
320 { /* end of list */ }
324 static QemuOptsList qemu_object_opts = {
326 .implied_opt_name = "qom-type",
327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
333 static QemuOptsList qemu_tpmdev_opts = {
335 .implied_opt_name = "type",
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
338 /* options are defined in the TPM backends */
339 { /* end of list */ }
343 static QemuOptsList qemu_overcommit_opts = {
344 .name = "overcommit",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
349 .type = QEMU_OPT_BOOL,
353 .type = QEMU_OPT_BOOL,
355 { /* end of list */ }
359 static QemuOptsList qemu_msg_opts = {
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
365 .type = QEMU_OPT_BOOL,
368 .name = "guest-name",
369 .type = QEMU_OPT_BOOL,
370 .help = "Prepends guest name for error messages but only if "
371 "-name guest is set otherwise option is ignored\n",
373 { /* end of list */ }
377 static QemuOptsList qemu_name_opts = {
379 .implied_opt_name = "guest",
381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
385 .type = QEMU_OPT_STRING,
386 .help = "Sets the name of the guest.\n"
387 "This name will be displayed in the SDL window caption.\n"
388 "The name will also be used for the VNC server",
391 .type = QEMU_OPT_STRING,
392 .help = "Sets the name of the QEMU process, as shown in top etc",
394 .name = "debug-threads",
395 .type = QEMU_OPT_BOOL,
396 .help = "When enabled, name the individual threads; defaults off.\n"
397 "NOTE: The thread names are for debugging and not a\n"
400 { /* End of list */ }
404 static QemuOptsList qemu_mem_opts = {
406 .implied_opt_name = "size",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
412 .type = QEMU_OPT_SIZE,
416 .type = QEMU_OPT_NUMBER,
420 .type = QEMU_OPT_SIZE,
422 { /* end of list */ }
426 static QemuOptsList qemu_icount_opts = {
428 .implied_opt_name = "shift",
430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
434 .type = QEMU_OPT_STRING,
437 .type = QEMU_OPT_BOOL,
440 .type = QEMU_OPT_BOOL,
443 .type = QEMU_OPT_STRING,
446 .type = QEMU_OPT_STRING,
448 .name = "rrsnapshot",
449 .type = QEMU_OPT_STRING,
451 { /* end of list */ }
455 static QemuOptsList qemu_fw_cfg_opts = {
457 .implied_opt_name = "name",
458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the fw_cfg name of the blob to be inserted",
466 .type = QEMU_OPT_STRING,
467 .help = "Sets the name of the file from which "
468 "the fw_cfg blob will be loaded",
471 .type = QEMU_OPT_STRING,
472 .help = "Sets content of the blob to be inserted from a string",
475 .type = QEMU_OPT_STRING,
476 .help = "Sets id of the object generating the fw_cfg blob "
479 { /* end of list */ }
483 static QemuOptsList qemu_action_opts = {
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
490 .type = QEMU_OPT_STRING,
493 .type = QEMU_OPT_STRING,
496 .type = QEMU_OPT_STRING,
499 .type = QEMU_OPT_STRING,
501 { /* end of list */ }
505 const char *qemu_get_vm_name(void)
510 static void default_driver_disable(const char *driver)
518 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
519 if (strcmp(default_list[i].driver, driver) != 0)
521 *(default_list[i].flag) = 0;
525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
527 const char *driver = qemu_opt_get(opts, "driver");
529 default_driver_disable(driver);
533 static void default_driver_check_json(void)
537 QTAILQ_FOREACH(opt, &device_opts, next) {
538 const char *driver = qdict_get_try_str(opt->opts, "driver");
539 default_driver_disable(driver);
543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
545 const char *proc_name;
547 if (qemu_opt_get(opts, "debug-threads")) {
548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
550 qemu_name = qemu_opt_get(opts, "guest");
552 proc_name = qemu_opt_get(opts, "process");
554 os_set_proc_name(proc_name);
560 bool defaults_enabled(void)
566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
568 int fd, dupfd, flags;
570 const char *fd_opaque = NULL;
573 fd = qemu_opt_get_number(opts, "fd", -1);
574 fdset_id = qemu_opt_get_number(opts, "set", -1);
575 fd_opaque = qemu_opt_get(opts, "opaque");
578 error_setg(errp, "fd option is required and must be non-negative");
582 if (fd <= STDERR_FILENO) {
583 error_setg(errp, "fd cannot be a standard I/O stream");
588 * All fds inherited across exec() necessarily have FD_CLOEXEC
589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
591 flags = fcntl(fd, F_GETFD);
592 if (flags == -1 || (flags & FD_CLOEXEC)) {
593 error_setg(errp, "fd is not valid or already in use");
598 error_setg(errp, "set option is required and must be non-negative");
602 #ifdef F_DUPFD_CLOEXEC
603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
607 qemu_set_cloexec(dupfd);
611 error_setg(errp, "error duplicating fd: %s", strerror(errno));
615 /* add the duplicate fd, and optionally the opaque string, to the fd set */
616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
627 fd = qemu_opt_get_number(opts, "fd", -1);
634 /***********************************************************/
635 /* QEMU Block devices */
637 #define HD_OPTS "media=disk"
638 #define CDROM_OPTS "media=cdrom"
640 #define PFLASH_OPTS ""
644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
646 BlockInterfaceType *block_default_type = opaque;
648 return drive_new(opts, *block_default_type, errp) == NULL;
651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
653 if (qemu_opt_get(opts, "snapshot") == NULL) {
654 qemu_opt_set(opts, "snapshot", "on", &error_abort);
659 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
660 int index, const char *optstr)
665 if (!enable || drive_get_by_index(type, index)) {
669 opts = drive_add(type, index, NULL, optstr);
671 drive_enable_snapshot(NULL, opts, NULL);
674 dinfo = drive_new(opts, type, &error_abort);
675 dinfo->is_default = true;
679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
680 MachineClass *machine_class, int snapshot)
683 * If the currently selected machine wishes to override the
684 * units-per-bus property of its default HBA interface type, do so
687 if (machine_class->units_per_default_bus) {
688 override_max_devs(machine_class->block_default_type,
689 machine_class->units_per_default_bus);
692 /* open the virtual block devices */
693 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
697 loc_push_restore(&bdo->loc);
698 qmp_blockdev_add(bdo->bdo, &error_fatal);
700 qapi_free_BlockdevOptions(bdo->bdo);
704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
708 &machine_class->block_default_type, &error_fatal)) {
709 /* We printed help */
713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
720 static QemuOptsList qemu_smp_opts = {
722 .implied_opt_name = "cpus",
724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
728 .type = QEMU_OPT_NUMBER,
731 .type = QEMU_OPT_NUMBER,
734 .type = QEMU_OPT_NUMBER,
737 .type = QEMU_OPT_NUMBER,
740 .type = QEMU_OPT_NUMBER,
743 .type = QEMU_OPT_NUMBER,
746 .type = QEMU_OPT_NUMBER,
749 .type = QEMU_OPT_NUMBER,
752 .type = QEMU_OPT_NUMBER,
758 #if defined(CONFIG_POSIX)
759 static QemuOptsList qemu_run_with_opts = {
761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
763 #if defined(CONFIG_LINUX)
765 .name = "async-teardown",
766 .type = QEMU_OPT_BOOL,
771 .type = QEMU_OPT_STRING,
773 { /* end of list */ }
777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
781 #define qemu_add_run_with_opts()
783 #endif /* CONFIG_POSIX */
785 static void realtime_init(void)
788 if (os_mlock() < 0) {
789 error_report("locking memory failed");
796 static void configure_msg(QemuOpts *opts)
798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
803 /***********************************************************/
806 static int usb_device_add(const char *devname)
808 USBDevice *dev = NULL;
810 if (!machine_usb(current_machine)) {
814 dev = usbdevice_create(devname);
821 static int usb_parse(const char *cmdline)
824 r = usb_device_add(cmdline);
826 error_report("could not add USB device '%s'", cmdline);
831 /***********************************************************/
832 /* machine registration */
834 static MachineClass *find_machine(const char *name, GSList *machines)
838 for (el = machines; el; el = el->next) {
839 MachineClass *mc = el->data;
841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
849 static MachineClass *find_default_machine(GSList *machines)
852 MachineClass *default_machineclass = NULL;
854 for (el = machines; el; el = el->next) {
855 MachineClass *mc = el->data;
857 if (mc->is_default) {
858 assert(default_machineclass == NULL && "Multiple default machines");
859 default_machineclass = mc;
863 return default_machineclass;
866 static void version(void)
868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
869 QEMU_COPYRIGHT "\n");
872 static void help(int exitcode)
875 printf("usage: %s [options] [disk_image]\n\n"
876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
880 if ((arch_mask) & arch_type) \
881 fputs(opt_help, stdout);
883 #define ARCHHEADING(text, arch_mask) \
884 if ((arch_mask) & arch_type) \
885 puts(stringify(text));
887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
889 #include "qemu-options.def"
891 printf("\nDuring emulation, the following keys are useful:\n"
892 "ctrl-alt-f toggle full screen\n"
893 "ctrl-alt-n switch to virtual console 'n'\n"
894 "ctrl-alt toggle mouse and keyboard grab\n"
896 "When using -nographic, press 'ctrl-a h' to get some help.\n"
898 QEMU_HELP_BOTTOM "\n");
905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
907 #define DEFHEADING(text)
908 #define ARCHHEADING(text, arch_mask)
910 #include "qemu-options.def"
913 #define HAS_ARG 0x0001
915 typedef struct QEMUOption {
922 static const QEMUOption qemu_options[] = {
923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
926 { option, opt_arg, opt_enum, arch_mask },
927 #define DEFHEADING(text)
928 #define ARCHHEADING(text, arch_mask)
930 #include "qemu-options.def"
931 { /* end of list */ }
934 typedef struct VGAInterfaceInfo {
935 const char *opt_name; /* option name */
936 const char *name; /* human-readable name */
937 /* Class names indicating that support is available.
938 * If no class is specified, the interface is always available */
939 const char *class_names[2];
942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
945 .name = "no graphic card",
949 .name = "standard VGA",
950 .class_names = { "VGA", "isa-vga" },
953 .opt_name = "cirrus",
954 .name = "Cirrus VGA",
955 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
958 .opt_name = "vmware",
959 .name = "VMWare SVGA",
960 .class_names = { "vmware-svga" },
963 .opt_name = "virtio",
964 .name = "Virtio VGA",
965 .class_names = { "virtio-vga" },
970 .class_names = { "qxl-vga" },
974 .name = "TCX framebuffer",
975 .class_names = { "sun-tcx" },
979 .name = "CG3 framebuffer",
980 .class_names = { "cgthree" },
982 #ifdef CONFIG_XEN_BACKEND
985 .name = "Xen paravirtualized framebuffer",
990 static bool vga_interface_available(VGAInterfaceType t)
992 const VGAInterfaceInfo *ti = &vga_interfaces[t];
994 assert(t < VGA_TYPE_MAX);
995 return !ti->class_names[0] ||
996 module_object_class_by_name(ti->class_names[0]) ||
997 module_object_class_by_name(ti->class_names[1]);
1001 get_default_vga_model(const MachineClass *machine_class)
1003 if (machine_class->default_display) {
1004 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1005 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1007 if (ti->opt_name && vga_interface_available(t) &&
1008 g_str_equal(ti->opt_name, machine_class->default_display)) {
1009 return machine_class->default_display;
1013 warn_report_once("Default display '%s' is not available in this binary",
1014 machine_class->default_display);
1016 } else if (vga_interface_available(VGA_CIRRUS)) {
1018 } else if (vga_interface_available(VGA_STD)) {
1025 static void select_vgahw(const MachineClass *machine_class, const char *p)
1030 if (g_str_equal(p, "help")) {
1031 const char *def = get_default_vga_model(machine_class);
1033 for (t = 0; t < VGA_TYPE_MAX; t++) {
1034 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1036 if (vga_interface_available(t) && ti->opt_name) {
1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1038 (def && g_str_equal(ti->opt_name, def)) ?
1045 assert(vga_interface_type == VGA_NONE);
1046 for (t = 0; t < VGA_TYPE_MAX; t++) {
1047 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1049 if (!vga_interface_available(t)) {
1050 error_report("%s not available", ti->name);
1053 vga_interface_type = t;
1057 if (t == VGA_TYPE_MAX) {
1059 error_report("unknown vga type: %s", p);
1063 const char *nextopt;
1065 if (strstart(opts, ",retrace=", &nextopt)) {
1067 if (strstart(opts, "dumb", &nextopt))
1068 vga_retrace_method = VGA_RETRACE_DUMB;
1069 else if (strstart(opts, "precise", &nextopt))
1070 vga_retrace_method = VGA_RETRACE_PRECISE;
1071 else goto invalid_vga;
1072 } else goto invalid_vga;
1077 static void parse_display_qapi(const char *str)
1079 DisplayOptions *opts;
1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1087 qapi_free_DisplayOptions(opts);
1091 DisplayOptions *qmp_query_display_options(Error **errp)
1093 return QAPI_CLONE(DisplayOptions, &dpy);
1096 static void parse_display(const char *p)
1100 if (is_help_option(p)) {
1101 qemu_display_help();
1105 if (strstart(p, "vnc", &opts)) {
1107 * vnc isn't a (local) DisplayType but a protocol for remote
1111 vnc_parse(opts + 1);
1113 error_report("VNC requires a display argument vnc=<display>");
1117 parse_display_qapi(p);
1121 static inline bool nonempty_str(const char *str)
1126 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1130 const char *name, *file, *str, *gen_id;
1131 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1133 if (fw_cfg == NULL) {
1134 error_setg(errp, "fw_cfg device not available");
1137 name = qemu_opt_get(opts, "name");
1138 file = qemu_opt_get(opts, "file");
1139 str = qemu_opt_get(opts, "string");
1140 gen_id = qemu_opt_get(opts, "gen_id");
1142 /* we need the name, and exactly one of: file, content string, gen_id */
1143 if (!nonempty_str(name) ||
1144 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1145 error_setg(errp, "name, plus exactly one of file,"
1146 " string and gen_id, are needed");
1149 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1150 error_setg(errp, "name too long (max. %d char)",
1151 FW_CFG_MAX_FILE_PATH - 1);
1154 if (nonempty_str(gen_id)) {
1156 * In this particular case where the content is populated
1157 * internally, the "etc/" namespace protection is relaxed,
1158 * so do not emit a warning.
1160 } else if (strncmp(name, "opt/", 4) != 0) {
1161 warn_report("externally provided fw_cfg item names "
1162 "should be prefixed with \"opt/\"");
1164 if (nonempty_str(str)) {
1165 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1166 buf = g_memdup(str, size);
1167 } else if (nonempty_str(gen_id)) {
1168 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1174 if (!g_file_get_contents(file, &buf, &size, &err)) {
1175 error_setg(errp, "can't load %s: %s", file, err->message);
1180 /* For legacy, keep user files in a specific global order. */
1181 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1182 fw_cfg_add_file(fw_cfg, name, buf, size);
1183 fw_cfg_reset_order_override(fw_cfg);
1187 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1189 return qdev_device_help(opts);
1192 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1196 dev = qdev_device_add(opts, errp);
1197 if (!dev && *errp) {
1198 error_report_err(*errp);
1201 object_unref(OBJECT(dev));
1206 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1208 Error *local_err = NULL;
1210 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1212 error_propagate(errp, local_err);
1220 #ifdef CONFIG_VIRTFS
1221 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1223 return qemu_fsdev_add(opts, errp);
1227 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1229 return monitor_init_opts(opts, errp);
1232 static void monitor_parse(const char *str, const char *mode, bool pretty)
1234 static int monitor_device_index = 0;
1239 if (strstart(str, "chardev:", &p)) {
1240 snprintf(label, sizeof(label), "%s", p);
1242 snprintf(label, sizeof(label), "compat_monitor%d",
1243 monitor_device_index);
1244 opts = qemu_chr_parse_compat(label, str, true);
1246 error_report("parse error: %s", str);
1251 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1252 qemu_opt_set(opts, "mode", mode, &error_abort);
1253 qemu_opt_set(opts, "chardev", label, &error_abort);
1254 if (!strcmp(mode, "control")) {
1255 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1257 assert(pretty == false);
1259 monitor_device_index++;
1262 struct device_config {
1264 DEV_USB, /* -usbdevice */
1265 DEV_SERIAL, /* -serial */
1266 DEV_PARALLEL, /* -parallel */
1267 DEV_DEBUGCON, /* -debugcon */
1268 DEV_GDB, /* -gdb, -s */
1269 DEV_SCLP, /* s390 sclp */
1271 const char *cmdline;
1273 QTAILQ_ENTRY(device_config) next;
1276 static QTAILQ_HEAD(, device_config) device_configs =
1277 QTAILQ_HEAD_INITIALIZER(device_configs);
1279 static void add_device_config(int type, const char *cmdline)
1281 struct device_config *conf;
1283 conf = g_malloc0(sizeof(*conf));
1285 conf->cmdline = cmdline;
1286 loc_save(&conf->loc);
1287 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1290 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1292 struct device_config *conf;
1295 QTAILQ_FOREACH(conf, &device_configs, next) {
1296 if (conf->type != type)
1298 loc_push_restore(&conf->loc);
1299 rc = func(conf->cmdline);
1300 loc_pop(&conf->loc);
1308 static void qemu_disable_default_devices(void)
1310 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1312 default_driver_check_json();
1313 qemu_opts_foreach(qemu_find_opts("device"),
1314 default_driver_check, NULL, NULL);
1315 qemu_opts_foreach(qemu_find_opts("global"),
1316 default_driver_check, NULL, NULL);
1318 if (!vga_model && !default_vga) {
1319 vga_interface_type = VGA_DEVICE;
1320 vga_interface_created = true;
1322 if (!has_defaults || machine_class->no_serial) {
1325 if (!has_defaults || machine_class->no_parallel) {
1326 default_parallel = 0;
1328 if (!has_defaults || machine_class->no_floppy) {
1331 if (!has_defaults || machine_class->no_cdrom) {
1334 if (!has_defaults || machine_class->no_sdcard) {
1337 if (!has_defaults) {
1339 default_monitor = 0;
1343 if (default_net && machine_class->default_nic &&
1344 !module_object_class_by_name(machine_class->default_nic)) {
1345 warn_report("Default NIC '%s' is not available in this binary",
1346 machine_class->default_nic);
1352 static void qemu_create_default_devices(void)
1354 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1356 if (is_daemonized()) {
1357 /* According to documentation and historically, -nographic redirects
1358 * serial port, parallel port and monitor to stdio, which does not work
1359 * with -daemonize. We can redirect these to null instead, but since
1360 * -nographic is legacy, let's just error out.
1361 * We disallow -nographic only if all other ports are not redirected
1362 * explicitly, to not break existing legacy setups which uses
1363 * -nographic _and_ redirects all ports explicitly - this is valid
1364 * usage, -nographic is just a no-op in this case.
1367 && (default_parallel || default_serial || default_monitor)) {
1368 error_report("-nographic cannot be used with -daemonize");
1374 if (default_parallel)
1375 add_device_config(DEV_PARALLEL, "null");
1376 if (default_serial && default_monitor) {
1377 add_device_config(DEV_SERIAL, "mon:stdio");
1380 add_device_config(DEV_SERIAL, "stdio");
1381 if (default_monitor)
1382 monitor_parse("stdio", "readline", false);
1386 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1387 if (default_parallel)
1388 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1389 if (default_monitor)
1390 monitor_parse("vc:80Cx24C", "readline", false);
1394 QemuOptsList *net = qemu_find_opts("net");
1395 qemu_opts_parse(net, "nic", true, &error_abort);
1397 qemu_opts_parse(net, "user", true, &error_abort);
1401 #if defined(CONFIG_VNC)
1402 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1406 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1407 if (!qemu_display_find_default(&dpy)) {
1408 dpy.type = DISPLAY_TYPE_NONE;
1409 #if defined(CONFIG_VNC)
1410 vnc_parse("localhost:0,to=99,id=default");
1414 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1415 dpy.type = DISPLAY_TYPE_NONE;
1418 /* If no default VGA is requested, the default is "none". */
1420 vga_model = get_default_vga_model(machine_class);
1423 select_vgahw(machine_class, vga_model);
1427 static int serial_parse(const char *devname)
1429 int index = num_serial_hds;
1432 if (strcmp(devname, "none") == 0)
1434 snprintf(label, sizeof(label), "serial%d", index);
1435 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1437 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1438 if (!serial_hds[index]) {
1439 error_report("could not connect serial device"
1440 " to character backend '%s'", devname);
1447 Chardev *serial_hd(int i)
1450 if (i < num_serial_hds) {
1451 return serial_hds[i];
1456 static int parallel_parse(const char *devname)
1458 static int index = 0;
1461 if (strcmp(devname, "none") == 0)
1463 if (index == MAX_PARALLEL_PORTS) {
1464 error_report("too many parallel ports");
1467 snprintf(label, sizeof(label), "parallel%d", index);
1468 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1469 if (!parallel_hds[index]) {
1470 error_report("could not connect parallel device"
1471 " to character backend '%s'", devname);
1478 static int debugcon_parse(const char *devname)
1482 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1483 error_report("invalid character backend '%s'", devname);
1486 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1488 error_report("already have a debugcon device");
1491 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1492 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1496 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1498 const MachineClass *mc1 = a, *mc2 = b;
1501 if (mc1->family == NULL) {
1502 if (mc2->family == NULL) {
1503 /* Compare standalone machine types against each other; they sort
1504 * in increasing order.
1506 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1507 object_class_get_name(OBJECT_CLASS(mc2)));
1510 /* Standalone machine types sort after families. */
1514 if (mc2->family == NULL) {
1515 /* Families sort before standalone machine types. */
1519 /* Families sort between each other alphabetically increasingly. */
1520 res = strcmp(mc1->family, mc2->family);
1525 /* Within the same family, machine types sort in decreasing order. */
1526 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1527 object_class_get_name(OBJECT_CLASS(mc1)));
1530 static void machine_help_func(const QDict *qdict)
1532 GSList *machines, *el;
1533 const char *type = qdict_get_try_str(qdict, "type");
1535 machines = object_class_get_list(TYPE_MACHINE, false);
1537 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1538 if (machine_class) {
1539 type_print_class_properties(object_class_get_name(machine_class));
1544 printf("Supported machines are:\n");
1545 machines = g_slist_sort(machines, machine_class_cmp);
1546 for (el = machines; el; el = el->next) {
1547 MachineClass *mc = el->data;
1549 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1551 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1552 mc->is_default ? " (default)" : "",
1553 mc->deprecation_reason ? " (deprecated)" : "");
1558 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1563 /* Preserve the caller's reference to prop. */
1565 qdict_put(opts, propname, prop);
1566 keyval_merge(machine_opts_dict, opts, errp);
1567 qobject_unref(opts);
1571 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1577 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1579 qemu_opts_print_help(opts_list, true);
1582 machine_merge_property(propname, prop, &error_fatal);
1583 qobject_unref(prop);
1586 static const char *pid_file;
1587 struct UnlinkPidfileNotifier {
1589 char *pid_file_realpath;
1591 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1593 static void qemu_unlink_pidfile(Notifier *n, void *data)
1595 struct UnlinkPidfileNotifier *upn;
1597 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1598 unlink(upn->pid_file_realpath);
1601 static const QEMUOption *lookup_opt(int argc, char **argv,
1602 const char **poptarg, int *poptind)
1604 const QEMUOption *popt;
1605 int optind = *poptind;
1606 char *r = argv[optind];
1609 loc_set_cmdline(argv, optind, 1);
1611 /* Treat --foo the same as -foo. */
1614 popt = qemu_options;
1617 error_report("invalid option");
1620 if (!strcmp(popt->name, r + 1))
1624 if (popt->flags & HAS_ARG) {
1625 if (optind >= argc) {
1626 error_report("requires an argument");
1629 optarg = argv[optind++];
1630 loc_set_cmdline(argv, optind - 2, 2);
1641 static MachineClass *select_machine(QDict *qdict, Error **errp)
1643 const char *machine_type = qdict_get_try_str(qdict, "type");
1644 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1645 MachineClass *machine_class;
1646 Error *local_err = NULL;
1649 machine_class = find_machine(machine_type, machines);
1650 qdict_del(qdict, "type");
1651 if (!machine_class) {
1652 error_setg(&local_err, "unsupported machine type");
1655 machine_class = find_default_machine(machines);
1656 if (!machine_class) {
1657 error_setg(&local_err, "No machine specified, and there is no default");
1661 g_slist_free(machines);
1663 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1664 error_propagate(errp, local_err);
1666 return machine_class;
1669 static int object_parse_property_opt(Object *obj,
1670 const char *name, const char *value,
1671 const char *skip, Error **errp)
1673 if (g_str_equal(name, skip)) {
1677 if (!object_property_parse(obj, name, value, errp)) {
1684 /* *Non*recursively replace underscores with dashes in QDict keys. */
1685 static void keyval_dashify(QDict *qdict, Error **errp)
1687 const QDictEntry *ent, *next;
1690 for (ent = qdict_first(qdict); ent; ent = next) {
1691 g_autofree char *new_key = NULL;
1693 next = qdict_next(qdict, ent);
1694 if (!strchr(ent->key, '_')) {
1697 new_key = g_strdup(ent->key);
1698 for (p = new_key; *p; p++) {
1703 if (qdict_haskey(qdict, new_key)) {
1704 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1707 qobject_ref(ent->value);
1708 qdict_put_obj(qdict, new_key, ent->value);
1709 qdict_del(qdict, ent->key);
1713 static void qemu_apply_legacy_machine_options(QDict *qdict)
1718 keyval_dashify(qdict, &error_fatal);
1720 /* Legacy options do not correspond to MachineState properties. */
1721 value = qdict_get_try_str(qdict, "accel");
1723 accelerators = g_strdup(value);
1724 qdict_del(qdict, "accel");
1727 value = qdict_get_try_str(qdict, "igd-passthru");
1729 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1731 qdict_del(qdict, "igd-passthru");
1734 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1736 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1738 qdict_del(qdict, "kvm-shadow-mem");
1741 value = qdict_get_try_str(qdict, "kernel-irqchip");
1743 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1745 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1747 qdict_del(qdict, "kernel-irqchip");
1750 value = qdict_get_try_str(qdict, "memory-backend");
1753 error_report("'-mem-path' can't be used together with"
1754 "'-machine memory-backend'");
1758 /* Resolved later. */
1759 ram_memdev_id = g_strdup(value);
1760 qdict_del(qdict, "memory-backend");
1763 prop = qdict_get(qdict, "memory");
1765 have_custom_ram_size =
1766 qobject_type(prop) == QTYPE_QDICT &&
1767 qdict_haskey(qobject_to(QDict, prop), "size");
1771 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1773 ObjectOption *opt, *next;
1775 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1776 const char *type = ObjectType_str(opt->opts->qom_type);
1777 if (type_opt_predicate(type)) {
1778 user_creatable_add_qapi(opt->opts, &error_fatal);
1779 qapi_free_ObjectOptions(opt->opts);
1780 QTAILQ_REMOVE(&object_opts, opt, next);
1786 static void object_option_add_visitor(Visitor *v)
1788 ObjectOption *opt = g_new0(ObjectOption, 1);
1789 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1790 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1793 static void object_option_parse(const char *str)
1799 if (str[0] == '{') {
1800 QObject *obj = qobject_from_json(str, &error_fatal);
1802 v = qobject_input_visitor_new(obj);
1805 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1811 type = qemu_opt_get(opts, "qom-type");
1813 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1815 if (user_creatable_print_help(type, opts)) {
1819 v = opts_visitor_new(opts);
1822 object_option_add_visitor(v);
1827 * Very early object creation, before the sandbox options have been activated.
1829 static bool object_create_pre_sandbox(const char *type)
1832 * Objects should in general not get initialized "too early" without
1833 * a reason. If you add one, state the reason in a comment!
1837 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1838 * affinity of threads.
1840 if (g_str_equal(type, "thread-context")) {
1848 * Initial object creation happens before all other
1849 * QEMU data types are created. The majority of objects
1850 * can be created at this point. The rng-egd object
1851 * cannot be created here, as it depends on the chardev
1854 static bool object_create_early(const char *type)
1857 * Objects should not be made "delayed" without a reason. If you
1858 * add one, state the reason in a comment!
1861 /* Reason: already created. */
1862 if (object_create_pre_sandbox(type)) {
1866 /* Reason: property "chardev" */
1867 if (g_str_equal(type, "rng-egd") ||
1868 g_str_equal(type, "qtest")) {
1872 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1873 /* Reason: cryptodev-vhost-user property "chardev" */
1874 if (g_str_equal(type, "cryptodev-vhost-user")) {
1879 /* Reason: vhost-user-blk-server property "node-name" */
1880 if (g_str_equal(type, "vhost-user-blk-server")) {
1884 * Reason: filter-* property "netdev" etc.
1886 if (g_str_equal(type, "filter-buffer") ||
1887 g_str_equal(type, "filter-dump") ||
1888 g_str_equal(type, "filter-mirror") ||
1889 g_str_equal(type, "filter-redirector") ||
1890 g_str_equal(type, "colo-compare") ||
1891 g_str_equal(type, "filter-rewriter") ||
1892 g_str_equal(type, "filter-replay")) {
1897 * Allocation of large amounts of memory may delay
1898 * chardev initialization for too long, and trigger timeouts
1899 * on software that waits for a monitor socket to be created
1902 if (g_str_has_prefix(type, "memory-backend-")) {
1909 static void qemu_apply_machine_options(QDict *qdict)
1911 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1913 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1914 /* fall back to the -kernel/-append */
1915 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1918 if (current_machine->smp.cpus > 1) {
1919 replay_add_blocker("smp");
1923 static void qemu_create_early_backends(void)
1925 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1926 #if defined(CONFIG_SDL)
1927 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1929 const bool use_sdl = false;
1931 #if defined(CONFIG_GTK)
1932 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1934 const bool use_gtk = false;
1937 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1938 error_report("window-close is only valid for GTK and SDL, "
1942 qemu_display_early_init(&dpy);
1943 qemu_console_early_init();
1945 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1946 #if defined(CONFIG_OPENGL)
1947 error_report("OpenGL is not supported by the display");
1949 error_report("OpenGL support is disabled");
1954 object_option_foreach_add(object_create_early);
1956 /* spice needs the timers to be initialized by this point */
1957 /* spice must initialize before audio as it changes the default audiodev */
1958 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1961 qemu_opts_foreach(qemu_find_opts("chardev"),
1962 chardev_init_func, NULL, &error_fatal);
1964 #ifdef CONFIG_VIRTFS
1965 qemu_opts_foreach(qemu_find_opts("fsdev"),
1966 fsdev_init_func, NULL, &error_fatal);
1970 * Note: we need to create audio and block backends before
1971 * setting machine properties, so they can be referred to.
1973 configure_blockdev(&bdo_queue, machine_class, snapshot);
1974 audio_init_audiodevs();
1975 if (default_audio) {
1976 audio_create_default_audiodevs();
1982 * The remainder of object creation happens after the
1983 * creation of chardev, fsdev, net clients and device data types.
1985 static bool object_create_late(const char *type)
1987 return !object_create_early(type) && !object_create_pre_sandbox(type);
1990 static void qemu_create_late_backends(void)
1993 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1998 object_option_foreach_add(object_create_late);
2000 if (tpm_init() < 0) {
2004 qemu_opts_foreach(qemu_find_opts("mon"),
2005 mon_init_func, NULL, &error_fatal);
2007 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2009 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2011 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2014 /* now chardevs have been created we may have semihosting to connect */
2015 qemu_semihosting_chardev_init();
2018 static void qemu_resolve_machine_memdev(void)
2020 if (ram_memdev_id) {
2022 ram_addr_t backend_size;
2024 backend = object_resolve_path_type(ram_memdev_id,
2025 TYPE_MEMORY_BACKEND, NULL);
2027 error_report("Memory backend '%s' not found", ram_memdev_id);
2030 if (!have_custom_ram_size) {
2031 backend_size = object_property_get_uint(backend, "size", &error_abort);
2032 current_machine->ram_size = backend_size;
2034 object_property_set_link(OBJECT(current_machine),
2035 "memory-backend", backend, &error_fatal);
2039 static void parse_memory_options(void)
2041 QemuOpts *opts = qemu_find_opts_singleton("memory");
2043 const char *mem_str;
2046 loc_push_none(&loc);
2047 qemu_opts_loc_restore(opts);
2051 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2052 /* Fix up legacy suffix-less format */
2053 mem_str = qemu_opt_get(opts, "size");
2054 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2055 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2056 qdict_put_str(prop, "size", mib_str);
2058 qdict_put_str(prop, "size", mem_str);
2062 if (qemu_opt_get(opts, "maxmem")) {
2063 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2065 if (qemu_opt_get(opts, "slots")) {
2066 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2070 qdict_put(dict, "memory", prop);
2071 keyval_merge(machine_opts_dict, dict, &error_fatal);
2072 qobject_unref(dict);
2076 static void qemu_create_machine(QDict *qdict)
2078 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2079 object_set_machine_compat_props(machine_class->compat_props);
2081 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2082 object_property_add_child(object_get_root(), "machine",
2083 OBJECT(current_machine));
2084 object_property_add_child(container_get(OBJECT(current_machine),
2086 "sysbus", OBJECT(sysbus_get_default()));
2088 if (machine_class->minimum_page_bits) {
2089 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2090 /* This would be a board error: specifying a minimum smaller than
2091 * a target's compile-time fixed setting.
2093 g_assert_not_reached();
2097 cpu_exec_init_all();
2100 if (machine_class->hw_version) {
2101 qemu_set_hw_version(machine_class->hw_version);
2105 * Get the default machine options from the machine if it is not already
2106 * specified either by the configuration file or by the command line.
2108 if (machine_class->default_machine_opts) {
2109 QDict *default_opts =
2110 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2112 qemu_apply_legacy_machine_options(default_opts);
2113 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2114 false, &error_abort);
2115 qobject_unref(default_opts);
2119 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2123 g = g_malloc0(sizeof(*g));
2124 g->driver = qemu_opt_get(opts, "driver");
2125 g->property = qemu_opt_get(opts, "property");
2126 g->value = qemu_opt_get(opts, "value");
2127 qdev_prop_register_global(g);
2132 * Return whether configuration group @group is stored in QemuOpts, or
2133 * recorded as one or more QDicts by qemu_record_config_group.
2135 static bool is_qemuopts_group(const char *group)
2137 if (g_str_equal(group, "object") ||
2138 g_str_equal(group, "audiodev") ||
2139 g_str_equal(group, "machine") ||
2140 g_str_equal(group, "smp-opts") ||
2141 g_str_equal(group, "boot-opts")) {
2147 static void qemu_record_config_group(const char *group, QDict *dict,
2148 bool from_json, Error **errp)
2150 if (g_str_equal(group, "object")) {
2151 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2152 object_option_add_visitor(v);
2155 } else if (g_str_equal(group, "audiodev")) {
2156 Audiodev *dev = NULL;
2157 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2158 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2163 } else if (g_str_equal(group, "machine")) {
2165 * Cannot merge string-valued and type-safe dictionaries, so JSON
2166 * is not accepted yet for -M.
2169 keyval_merge(machine_opts_dict, dict, errp);
2170 } else if (g_str_equal(group, "smp-opts")) {
2171 machine_merge_property("smp", dict, &error_fatal);
2172 } else if (g_str_equal(group, "boot-opts")) {
2173 machine_merge_property("boot", dict, &error_fatal);
2180 * Parse non-QemuOpts config file groups, pass the rest to
2181 * qemu_config_do_parse.
2183 static void qemu_parse_config_group(const char *group, QDict *qdict,
2184 void *opaque, Error **errp)
2187 if (is_qemuopts_group(group)) {
2188 qemu_config_do_parse(group, qdict, opaque, errp);
2192 crumpled = qdict_crumple(qdict, errp);
2196 switch (qobject_type(crumpled)) {
2198 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2201 error_setg(errp, "Lists cannot be at top level of a configuration section");
2204 g_assert_not_reached();
2206 qobject_unref(crumpled);
2209 static void qemu_read_default_config_file(Error **errp)
2213 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2215 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2217 if (ret == -ENOENT) {
2224 static void qemu_set_option(const char *str, Error **errp)
2226 char group[64], id[64], arg[64];
2231 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2232 if (rc < 3 || str[offset] != '=') {
2233 error_setg(errp, "can't parse: \"%s\"", str);
2237 if (!is_qemuopts_group(group)) {
2238 error_setg(errp, "-set is not supported with %s", group);
2240 list = qemu_find_opts_err(group, errp);
2242 opts = qemu_opts_find(list, id);
2244 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2247 qemu_opt_set(opts, arg, str + offset + 1, errp);
2252 static void user_register_global_props(void)
2254 qemu_opts_foreach(qemu_find_opts("global"),
2255 global_init_func, NULL, NULL);
2258 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2260 icount_configure(opts, errp);
2264 static int accelerator_set_property(void *opaque,
2265 const char *name, const char *value,
2268 return object_parse_property_opt(opaque, name, value, "accel", errp);
2271 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2273 bool *p_init_failed = opaque;
2274 const char *acc = qemu_opt_get(opts, "accel");
2275 AccelClass *ac = accel_find(acc);
2278 bool qtest_with_kvm;
2281 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2285 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2288 if (!qtest_with_kvm) {
2289 error_report("invalid accelerator %s", acc);
2293 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2294 object_apply_compat_props(OBJECT(accel));
2295 qemu_opt_foreach(opts, accelerator_set_property,
2299 * If legacy -singlestep option is set, honour it for TCG and
2300 * silently ignore for any other accelerator (which is how this
2301 * option has always behaved).
2303 if (opt_one_insn_per_tb) {
2305 * This will always succeed for TCG, and we want to ignore
2306 * the error from trying to set a nonexistent property
2307 * on any other accelerator.
2309 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2311 ret = accel_init_machine(accel, current_machine);
2313 if (!qtest_with_kvm || ret != -ENOENT) {
2314 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2322 *p_init_failed = true;
2326 static void configure_accelerators(const char *progname)
2328 bool init_failed = false;
2330 qemu_opts_foreach(qemu_find_opts("icount"),
2331 do_configure_icount, NULL, &error_fatal);
2333 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2334 char **accel_list, **tmp;
2336 if (accelerators == NULL) {
2337 /* Select the default accelerator */
2338 bool have_tcg = accel_find("tcg");
2339 bool have_kvm = accel_find("kvm");
2341 if (have_tcg && have_kvm) {
2342 if (g_str_has_suffix(progname, "kvm")) {
2343 /* If the program name ends with "kvm", we prefer KVM */
2344 accelerators = "kvm:tcg";
2346 accelerators = "tcg:kvm";
2348 } else if (have_kvm) {
2349 accelerators = "kvm";
2350 } else if (have_tcg) {
2351 accelerators = "tcg";
2353 error_report("No accelerator selected and"
2354 " no default accelerator available");
2358 accel_list = g_strsplit(accelerators, ":", 0);
2360 for (tmp = accel_list; *tmp; tmp++) {
2362 * Filter invalid accelerators here, to prevent obscenities
2363 * such as "-machine accel=tcg,,thread=single".
2365 if (accel_find(*tmp)) {
2366 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2369 error_report("invalid accelerator %s", *tmp);
2372 g_strfreev(accel_list);
2374 if (accelerators != NULL) {
2375 error_report("The -accel and \"-machine accel=\" options are incompatible");
2380 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2381 do_configure_accelerator, &init_failed, &error_fatal)) {
2383 error_report("no accelerator found");
2388 if (init_failed && !qtest_chrdev) {
2389 error_report("falling back to %s", current_accel_name());
2392 if (icount_enabled() && !tcg_enabled()) {
2393 error_report("-icount is not allowed with hardware virtualization");
2398 static void qemu_validate_options(const QDict *machine_opts)
2400 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2401 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2402 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2404 if (kernel_filename == NULL) {
2405 if (kernel_cmdline != NULL) {
2406 error_report("-append only allowed with -kernel option");
2410 if (initrd_filename != NULL) {
2411 error_report("-initrd only allowed with -kernel option");
2416 if (loadvm && preconfig_requested) {
2417 error_report("'preconfig' and 'loadvm' options are "
2418 "mutually exclusive");
2421 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2422 error_report("'preconfig' supports '-incoming defer' only");
2426 #ifdef CONFIG_CURSES
2427 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2428 error_report("curses display cannot be used with -daemonize");
2434 static void qemu_process_sugar_options(void)
2437 QObject *smp = qdict_get(machine_opts_dict, "smp");
2438 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2439 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2440 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2441 const char *val = qstring_get_str(qobject_to(QString, cpus));
2442 object_register_sugar_prop("memory-backend", "prealloc-threads",
2446 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2450 /* -action processing */
2453 * Process all the -action parameters parsed from cmdline.
2455 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2457 Error *local_err = NULL;
2458 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2459 QObject *ret = NULL;
2460 qmp_marshal_set_action(qdict, &ret, &local_err);
2462 qobject_unref(qdict);
2464 error_propagate(errp, local_err);
2470 static void qemu_process_early_options(void)
2472 qemu_opts_foreach(qemu_find_opts("name"),
2473 parse_name, NULL, &error_fatal);
2475 object_option_foreach_add(object_create_pre_sandbox);
2477 #ifdef CONFIG_SECCOMP
2478 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2480 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2484 if (qemu_opts_foreach(qemu_find_opts("action"),
2485 process_runstate_actions, NULL, &error_fatal)) {
2490 qemu_opts_foreach(qemu_find_opts("add-fd"),
2491 parse_add_fd, NULL, &error_fatal);
2493 qemu_opts_foreach(qemu_find_opts("add-fd"),
2494 cleanup_add_fd, NULL, &error_fatal);
2497 /* Open the logfile at this point and set the log mask if necessary. */
2501 mask = qemu_str_to_log_mask(log_mask);
2503 qemu_print_log_usage(stdout);
2507 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2510 qemu_add_default_firmwarepath();
2513 static void qemu_process_help_options(void)
2516 * Check for -cpu help and -device help before we call select_machine(),
2517 * which will return an error if the architecture has no default machine
2518 * type and the user did not specify one, so that the user doesn't need
2519 * to say '-cpu help -machine something'.
2521 if (cpu_option && is_help_option(cpu_option)) {
2526 if (qemu_opts_foreach(qemu_find_opts("device"),
2527 device_help_func, NULL, NULL)) {
2531 /* -L help lists the data directories and exits. */
2532 if (list_data_dirs) {
2533 qemu_list_data_dirs();
2538 static void qemu_maybe_daemonize(const char *pid_file)
2543 rcu_disable_atfork();
2546 char *pid_file_realpath = NULL;
2548 if (!qemu_write_pidfile(pid_file, &err)) {
2549 error_reportf_err(err, "cannot create PID file: ");
2553 pid_file_realpath = g_malloc0(PATH_MAX);
2554 if (!realpath(pid_file, pid_file_realpath)) {
2555 if (errno != ENOENT) {
2556 warn_report("not removing PID file on exit: cannot resolve PID "
2557 "file path: %s: %s", pid_file, strerror(errno));
2562 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2564 .notify = qemu_unlink_pidfile,
2566 .pid_file_realpath = pid_file_realpath,
2568 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2572 static void qemu_init_displays(void)
2576 /* init local displays */
2577 ds = init_displaystate();
2578 qemu_display_init(ds, &dpy);
2580 /* must be after terminal init, SDL library changes signal handlers */
2581 os_setup_signal_handling();
2583 /* init remote displays */
2585 qemu_opts_foreach(qemu_find_opts("vnc"),
2586 vnc_init_func, NULL, &error_fatal);
2590 qemu_spice.display_init();
2594 static void qemu_init_board(void)
2596 /* process plugin before CPUs are created, but once -smp has been parsed */
2597 qemu_plugin_load_list(&plugin_list, &error_fatal);
2599 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2600 machine_run_board_init(current_machine, mem_path, &error_fatal);
2602 drive_check_orphaned();
2607 static void qemu_create_cli_devices(void)
2613 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2614 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2616 /* init USB devices */
2617 if (machine_usb(current_machine)) {
2618 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2622 /* init generic devices */
2623 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2624 qemu_opts_foreach(qemu_find_opts("device"),
2625 device_init_func, NULL, &error_fatal);
2626 QTAILQ_FOREACH(opt, &device_opts, next) {
2628 loc_push_restore(&opt->loc);
2630 * TODO Eventually we should call qmp_device_add() here to make sure it
2631 * behaves the same, but QMP still has to accept incorrectly typed
2632 * options until libvirt is fixed and we want to be strict on the CLI
2633 * from the start, so call qdev_device_add_from_qdict() directly for
2636 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2637 object_unref(OBJECT(dev));
2640 rom_reset_order_override();
2643 static void qemu_machine_creation_done(void)
2645 MachineState *machine = MACHINE(qdev_get_machine());
2647 /* Did we create any drives that we failed to create a device for? */
2648 drive_check_orphaned();
2650 /* Don't warn about the default network setup that you get if
2651 * no command line -net or -netdev options are specified. There
2652 * are two cases that we would otherwise complain about:
2653 * (1) board doesn't support a NIC but the implicit "-net nic"
2655 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2656 * sets up a nic that isn't connected to anything.
2658 if (!default_net && (!qtest_enabled() || has_defaults)) {
2659 net_check_clients();
2662 qdev_prop_check_globals();
2664 qdev_machine_creation_done();
2668 * Verify that Confidential Guest Support has actually been initialized
2670 assert(machine->cgs->ready);
2673 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2676 if (!vga_interface_created && !default_vga &&
2677 vga_interface_type != VGA_NONE) {
2678 warn_report("A -vga option was passed but this machine "
2679 "type does not use that option; "
2680 "No VGA device has been created");
2684 void qmp_x_exit_preconfig(Error **errp)
2686 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2687 error_setg(errp, "The command is permitted only before machine initialization");
2692 qemu_create_cli_devices();
2693 qemu_machine_creation_done();
2696 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2698 if (replay_mode != REPLAY_MODE_NONE) {
2699 replay_vmstate_init();
2703 Error *local_err = NULL;
2704 if (strcmp(incoming, "defer") != 0) {
2705 qmp_migrate_incoming(incoming, &local_err);
2707 error_reportf_err(local_err, "-incoming %s: ", incoming);
2711 } else if (autostart) {
2716 void qemu_init(int argc, char **argv)
2719 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2720 QemuOptsList *olist;
2723 MachineClass *machine_class;
2724 bool userconfig = true;
2725 FILE *vmstate_dump_file = NULL;
2727 qemu_add_opts(&qemu_drive_opts);
2728 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2729 qemu_add_drive_opts(&qemu_common_drive_opts);
2730 qemu_add_drive_opts(&qemu_drive_opts);
2731 qemu_add_drive_opts(&bdrv_runtime_opts);
2732 qemu_add_opts(&qemu_chardev_opts);
2733 qemu_add_opts(&qemu_device_opts);
2734 qemu_add_opts(&qemu_netdev_opts);
2735 qemu_add_opts(&qemu_nic_opts);
2736 qemu_add_opts(&qemu_net_opts);
2737 qemu_add_opts(&qemu_rtc_opts);
2738 qemu_add_opts(&qemu_global_opts);
2739 qemu_add_opts(&qemu_mon_opts);
2740 qemu_add_opts(&qemu_trace_opts);
2741 qemu_plugin_add_opts();
2742 qemu_add_opts(&qemu_option_rom_opts);
2743 qemu_add_opts(&qemu_accel_opts);
2744 qemu_add_opts(&qemu_mem_opts);
2745 qemu_add_opts(&qemu_smp_opts);
2746 qemu_add_opts(&qemu_boot_opts);
2747 qemu_add_opts(&qemu_add_fd_opts);
2748 qemu_add_opts(&qemu_object_opts);
2749 qemu_add_opts(&qemu_tpmdev_opts);
2750 qemu_add_opts(&qemu_overcommit_opts);
2751 qemu_add_opts(&qemu_msg_opts);
2752 qemu_add_opts(&qemu_name_opts);
2753 qemu_add_opts(&qemu_numa_opts);
2754 qemu_add_opts(&qemu_icount_opts);
2755 qemu_add_opts(&qemu_semihosting_config_opts);
2756 qemu_add_opts(&qemu_fw_cfg_opts);
2757 qemu_add_opts(&qemu_action_opts);
2758 qemu_add_run_with_opts();
2759 module_call_init(MODULE_INIT_OPTS);
2761 error_init(argv[0]);
2762 qemu_init_exec_dir(argv[0]);
2764 qemu_init_arch_modules();
2766 qemu_init_subsystems();
2768 /* first pass of option parsing */
2770 while (optind < argc) {
2771 if (argv[optind][0] != '-') {
2775 const QEMUOption *popt;
2777 popt = lookup_opt(argc, argv, &optarg, &optind);
2778 switch (popt->index) {
2779 case QEMU_OPTION_nouserconfig:
2786 machine_opts_dict = qdict_new();
2788 qemu_read_default_config_file(&error_fatal);
2791 /* second pass of option parsing */
2796 if (argv[optind][0] != '-') {
2797 loc_set_cmdline(argv, optind, 1);
2798 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2800 const QEMUOption *popt;
2802 popt = lookup_opt(argc, argv, &optarg, &optind);
2803 if (!(popt->arch_mask & arch_type)) {
2804 error_report("Option not supported for this target");
2807 switch(popt->index) {
2808 case QEMU_OPTION_cpu:
2809 /* hw initialization will check this */
2810 cpu_option = optarg;
2812 case QEMU_OPTION_hda:
2813 case QEMU_OPTION_hdb:
2814 case QEMU_OPTION_hdc:
2815 case QEMU_OPTION_hdd:
2816 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2819 case QEMU_OPTION_blockdev:
2822 BlockdevOptionsQueueEntry *bdo;
2824 v = qobject_input_visitor_new_str(optarg, "driver",
2827 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2828 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2831 loc_save(&bdo->loc);
2832 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2835 case QEMU_OPTION_drive:
2836 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2842 case QEMU_OPTION_set:
2843 qemu_set_option(optarg, &error_fatal);
2845 case QEMU_OPTION_global:
2846 if (qemu_global_option(optarg) != 0)
2849 case QEMU_OPTION_mtdblock:
2850 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2852 case QEMU_OPTION_sd:
2853 drive_add(IF_SD, -1, optarg, SD_OPTS);
2855 case QEMU_OPTION_pflash:
2856 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2858 case QEMU_OPTION_snapshot:
2860 replay_add_blocker("-snapshot");
2862 case QEMU_OPTION_numa:
2863 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2869 case QEMU_OPTION_display:
2870 parse_display(optarg);
2872 case QEMU_OPTION_nographic:
2873 qdict_put_str(machine_opts_dict, "graphics", "off");
2875 dpy.type = DISPLAY_TYPE_NONE;
2877 case QEMU_OPTION_portrait:
2878 graphic_rotate = 90;
2880 case QEMU_OPTION_rotate:
2881 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2882 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2883 graphic_rotate != 180 && graphic_rotate != 270) {
2884 error_report("only 90, 180, 270 deg rotation is available");
2888 case QEMU_OPTION_kernel:
2889 qdict_put_str(machine_opts_dict, "kernel", optarg);
2891 case QEMU_OPTION_initrd:
2892 qdict_put_str(machine_opts_dict, "initrd", optarg);
2894 case QEMU_OPTION_append:
2895 qdict_put_str(machine_opts_dict, "append", optarg);
2897 case QEMU_OPTION_dtb:
2898 qdict_put_str(machine_opts_dict, "dtb", optarg);
2900 case QEMU_OPTION_cdrom:
2901 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2903 case QEMU_OPTION_boot:
2904 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2906 case QEMU_OPTION_fda:
2907 case QEMU_OPTION_fdb:
2908 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2911 case QEMU_OPTION_no_fd_bootchk:
2914 case QEMU_OPTION_netdev:
2916 if (netdev_is_modern(optarg)) {
2917 netdev_parse_modern(optarg);
2919 net_client_parse(qemu_find_opts("netdev"), optarg);
2922 case QEMU_OPTION_nic:
2924 net_client_parse(qemu_find_opts("nic"), optarg);
2926 case QEMU_OPTION_net:
2928 net_client_parse(qemu_find_opts("net"), optarg);
2930 #ifdef CONFIG_LIBISCSI
2931 case QEMU_OPTION_iscsi:
2932 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2939 case QEMU_OPTION_audiodev:
2941 audio_parse_option(optarg);
2943 case QEMU_OPTION_audio: {
2946 Audiodev *dev = NULL;
2948 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2950 if (help || (qdict_haskey(dict, "driver") &&
2951 is_help_option(qdict_get_str(dict, "driver")))) {
2955 if (!qdict_haskey(dict, "id")) {
2956 qdict_put_str(dict, "id", "audiodev0");
2958 if (qdict_haskey(dict, "model")) {
2959 model = g_strdup(qdict_get_str(dict, "model"));
2960 qdict_del(dict, "model");
2961 if (is_help_option(model)) {
2962 show_valid_soundhw();
2966 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2967 qobject_unref(dict);
2968 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2972 select_soundhw(model, dev->id);
2975 audio_define_default(dev, &error_fatal);
2982 case QEMU_OPTION_version:
2987 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2993 case QEMU_OPTION_tpmdev:
2994 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2999 case QEMU_OPTION_mempath:
3002 case QEMU_OPTION_mem_prealloc:
3011 case QEMU_OPTION_DFILTER:
3012 qemu_set_dfilter_ranges(optarg, &error_fatal);
3014 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3015 case QEMU_OPTION_perfmap:
3016 perf_enable_perfmap();
3018 case QEMU_OPTION_jitdump:
3019 perf_enable_jitdump();
3022 case QEMU_OPTION_seed:
3023 qemu_guest_random_seed_main(optarg, &error_fatal);
3026 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3028 case QEMU_OPTION_gdb:
3029 add_device_config(DEV_GDB, optarg);
3032 if (is_help_option(optarg)) {
3033 list_data_dirs = true;
3035 qemu_add_data_dir(g_strdup(optarg));
3038 case QEMU_OPTION_bios:
3039 qdict_put_str(machine_opts_dict, "firmware", optarg);
3041 case QEMU_OPTION_singlestep:
3042 opt_one_insn_per_tb = true;
3048 keyboard_layout = optarg;
3050 case QEMU_OPTION_vga:
3059 w = strtol(p, (char **)&p, 10);
3062 error_report("invalid resolution or depth");
3068 h = strtol(p, (char **)&p, 10);
3073 depth = strtol(p, (char **)&p, 10);
3074 if (depth != 1 && depth != 2 && depth != 4 &&
3075 depth != 8 && depth != 15 && depth != 16 &&
3076 depth != 24 && depth != 32)
3078 } else if (*p == '\0') {
3079 depth = graphic_depth;
3086 graphic_depth = depth;
3089 case QEMU_OPTION_echr:
3092 term_escape_char = strtol(optarg, &r, 0);
3094 printf("Bad argument to echr\n");
3097 case QEMU_OPTION_monitor:
3098 default_monitor = 0;
3099 if (strncmp(optarg, "none", 4)) {
3100 monitor_parse(optarg, "readline", false);
3103 case QEMU_OPTION_qmp:
3104 monitor_parse(optarg, "control", false);
3105 default_monitor = 0;
3107 case QEMU_OPTION_qmp_pretty:
3108 monitor_parse(optarg, "control", true);
3109 default_monitor = 0;
3111 case QEMU_OPTION_mon:
3112 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3117 default_monitor = 0;
3119 case QEMU_OPTION_chardev:
3120 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3126 case QEMU_OPTION_fsdev:
3127 olist = qemu_find_opts("fsdev");
3129 error_report("fsdev support is disabled");
3132 opts = qemu_opts_parse_noisily(olist, optarg, true);
3137 case QEMU_OPTION_virtfs: {
3140 const char *writeout, *sock_fd, *socket, *path, *security_model,
3143 olist = qemu_find_opts("virtfs");
3145 error_report("virtfs support is disabled");
3148 opts = qemu_opts_parse_noisily(olist, optarg, true);
3153 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3154 qemu_opt_get(opts, "mount_tag") == NULL) {
3155 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3158 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3159 qemu_opts_id(opts) ?:
3160 qemu_opt_get(opts, "mount_tag"),
3163 error_report("duplicate or invalid fsdev id: %s",
3164 qemu_opt_get(opts, "mount_tag"));
3168 writeout = qemu_opt_get(opts, "writeout");
3170 #ifdef CONFIG_SYNC_FILE_RANGE
3171 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3173 error_report("writeout=immediate not supported "
3174 "on this platform");
3178 qemu_opt_set(fsdev, "fsdriver",
3179 qemu_opt_get(opts, "fsdriver"), &error_abort);
3180 path = qemu_opt_get(opts, "path");
3182 qemu_opt_set(fsdev, "path", path, &error_abort);
3184 security_model = qemu_opt_get(opts, "security_model");
3185 if (security_model) {
3186 qemu_opt_set(fsdev, "security_model", security_model,
3189 socket = qemu_opt_get(opts, "socket");
3191 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3193 sock_fd = qemu_opt_get(opts, "sock_fd");
3195 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3198 qemu_opt_set_bool(fsdev, "readonly",
3199 qemu_opt_get_bool(opts, "readonly", 0),
3201 multidevs = qemu_opt_get(opts, "multidevs");
3203 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3205 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3207 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3208 qemu_opt_set(device, "fsdev",
3209 qemu_opts_id(fsdev), &error_abort);
3210 qemu_opt_set(device, "mount_tag",
3211 qemu_opt_get(opts, "mount_tag"), &error_abort);
3214 case QEMU_OPTION_serial:
3215 add_device_config(DEV_SERIAL, optarg);
3217 if (strncmp(optarg, "mon:", 4) == 0) {
3218 default_monitor = 0;
3221 case QEMU_OPTION_action:
3222 olist = qemu_find_opts("action");
3223 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3227 case QEMU_OPTION_watchdog_action: {
3228 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3229 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3232 case QEMU_OPTION_parallel:
3233 add_device_config(DEV_PARALLEL, optarg);
3234 default_parallel = 0;
3235 if (strncmp(optarg, "mon:", 4) == 0) {
3236 default_monitor = 0;
3239 case QEMU_OPTION_debugcon:
3240 add_device_config(DEV_DEBUGCON, optarg);
3242 case QEMU_OPTION_loadvm:
3245 case QEMU_OPTION_full_screen:
3246 dpy.has_full_screen = true;
3247 dpy.full_screen = true;
3249 case QEMU_OPTION_pidfile:
3252 case QEMU_OPTION_win2k_hack:
3253 win2k_install_hack = 1;
3255 case QEMU_OPTION_acpitable:
3256 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3261 acpi_table_add(opts, &error_fatal);
3263 case QEMU_OPTION_smbios:
3264 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3269 smbios_entry_add(opts, &error_fatal);
3271 case QEMU_OPTION_fwcfg:
3272 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3278 case QEMU_OPTION_preconfig:
3279 preconfig_requested = true;
3281 case QEMU_OPTION_enable_kvm:
3282 qdict_put_str(machine_opts_dict, "accel", "kvm");
3285 case QEMU_OPTION_machine:
3289 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3291 machine_help_func(machine_opts_dict);
3296 case QEMU_OPTION_accel:
3297 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3299 optarg = qemu_opt_get(accel_opts, "accel");
3300 if (!optarg || is_help_option(optarg)) {
3301 printf("Accelerators supported in QEMU binary:\n");
3302 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3304 for (el = accel_list; el; el = el->next) {
3305 gchar *typename = g_strdup(object_class_get_name(
3306 OBJECT_CLASS(el->data)));
3307 /* omit qtest which is used for tests only */
3308 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3309 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3310 gchar **optname = g_strsplit(typename,
3311 ACCEL_CLASS_SUFFIX, 0);
3312 printf("%s\n", optname[0]);
3313 g_strfreev(optname);
3317 g_slist_free(accel_list);
3321 case QEMU_OPTION_usb:
3322 qdict_put_str(machine_opts_dict, "usb", "on");
3324 case QEMU_OPTION_usbdevice:
3325 qdict_put_str(machine_opts_dict, "usb", "on");
3326 add_device_config(DEV_USB, optarg);
3328 case QEMU_OPTION_device:
3329 if (optarg[0] == '{') {
3330 QObject *obj = qobject_from_json(optarg, &error_fatal);
3331 DeviceOption *opt = g_new0(DeviceOption, 1);
3332 opt->opts = qobject_to(QDict, obj);
3333 loc_save(&opt->loc);
3334 assert(opt->opts != NULL);
3335 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3337 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3343 case QEMU_OPTION_smp:
3344 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3347 case QEMU_OPTION_vnc:
3350 case QEMU_OPTION_no_acpi:
3351 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3352 qdict_put_str(machine_opts_dict, "acpi", "off");
3354 case QEMU_OPTION_no_hpet:
3355 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3356 qdict_put_str(machine_opts_dict, "hpet", "off");
3358 case QEMU_OPTION_no_reboot:
3359 olist = qemu_find_opts("action");
3360 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3362 case QEMU_OPTION_no_shutdown:
3363 olist = qemu_find_opts("action");
3364 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3366 case QEMU_OPTION_uuid:
3367 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3368 error_report("failed to parse UUID string: wrong format");
3371 qemu_uuid_set = true;
3373 case QEMU_OPTION_option_rom:
3374 if (nb_option_roms >= MAX_OPTION_ROMS) {
3375 error_report("too many option ROMs");
3378 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3383 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3384 option_rom[nb_option_roms].bootindex =
3385 qemu_opt_get_number(opts, "bootindex", -1);
3386 if (!option_rom[nb_option_roms].name) {
3387 error_report("Option ROM file is not specified");
3392 case QEMU_OPTION_semihosting:
3393 qemu_semihosting_enable();
3395 case QEMU_OPTION_semihosting_config:
3396 if (qemu_semihosting_config_options(optarg) != 0) {
3400 case QEMU_OPTION_name:
3401 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3406 /* Capture guest name if -msg guest-name is used later */
3407 error_guest_name = qemu_opt_get(opts, "guest");
3409 case QEMU_OPTION_prom_env:
3410 if (nb_prom_envs >= MAX_PROM_ENVS) {
3411 error_report("too many prom variables");
3414 prom_envs[nb_prom_envs] = optarg;
3417 case QEMU_OPTION_old_param:
3420 case QEMU_OPTION_rtc:
3421 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3427 case QEMU_OPTION_icount:
3428 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3434 case QEMU_OPTION_incoming:
3436 runstate_set(RUN_STATE_INMIGRATE);
3440 case QEMU_OPTION_only_migratable:
3441 only_migratable = 1;
3443 case QEMU_OPTION_nodefaults:
3446 case QEMU_OPTION_xen_domid:
3447 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3448 error_report("Option not supported for this target");
3451 xen_domid = atoi(optarg);
3453 case QEMU_OPTION_xen_attach:
3454 if (!(accel_find("xen"))) {
3455 error_report("Option not supported for this target");
3458 xen_mode = XEN_ATTACH;
3460 case QEMU_OPTION_xen_domid_restrict:
3461 if (!(accel_find("xen"))) {
3462 error_report("Option not supported for this target");
3465 xen_domid_restrict = true;
3467 case QEMU_OPTION_trace:
3468 trace_opt_parse(optarg);
3470 case QEMU_OPTION_plugin:
3471 qemu_plugin_opt_parse(optarg, &plugin_list);
3473 case QEMU_OPTION_readconfig:
3474 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3477 case QEMU_OPTION_spice:
3478 olist = qemu_find_opts_err("spice", NULL);
3480 error_report("spice support is disabled");
3483 opts = qemu_opts_parse_noisily(olist, optarg, false);
3490 case QEMU_OPTION_qtest:
3491 qtest_chrdev = optarg;
3493 case QEMU_OPTION_qtest_log:
3496 case QEMU_OPTION_sandbox:
3497 olist = qemu_find_opts("sandbox");
3499 #ifndef CONFIG_SECCOMP
3500 error_report("-sandbox support is not enabled "
3501 "in this QEMU binary");
3506 opts = qemu_opts_parse_noisily(olist, optarg, true);
3511 case QEMU_OPTION_add_fd:
3513 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3519 error_report("File descriptor passing is disabled on this "
3524 case QEMU_OPTION_object:
3525 object_option_parse(optarg);
3527 case QEMU_OPTION_overcommit:
3528 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3533 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3534 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3536 case QEMU_OPTION_compat:
3538 CompatPolicy *opts_policy;
3541 v = qobject_input_visitor_new_str(optarg, NULL,
3544 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3545 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3547 qapi_free_CompatPolicy(opts_policy);
3551 case QEMU_OPTION_msg:
3552 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3557 configure_msg(opts);
3559 case QEMU_OPTION_dump_vmstate:
3560 if (vmstate_dump_file) {
3561 error_report("only one '-dump-vmstate' "
3562 "option may be given");
3565 vmstate_dump_file = fopen(optarg, "w");
3566 if (vmstate_dump_file == NULL) {
3567 error_report("open %s: %s", optarg, strerror(errno));
3571 case QEMU_OPTION_enable_sync_profile:
3574 case QEMU_OPTION_nouserconfig:
3575 /* Nothing to be parsed here. Especially, do not error out below. */
3577 #if defined(CONFIG_POSIX)
3578 case QEMU_OPTION_runas:
3579 if (!os_set_runas(optarg)) {
3580 error_report("User \"%s\" doesn't exist"
3581 " (and is not <uid>:<gid>)",
3586 case QEMU_OPTION_chroot:
3587 warn_report("option is deprecated,"
3588 " use '-run-with chroot=...' instead");
3589 os_set_chroot(optarg);
3591 case QEMU_OPTION_daemonize:
3592 os_set_daemonize(true);
3594 #if defined(CONFIG_LINUX)
3596 case QEMU_OPTION_asyncteardown:
3597 init_async_teardown();
3600 case QEMU_OPTION_run_with: {
3602 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3607 #if defined(CONFIG_LINUX)
3608 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3609 init_async_teardown();
3612 str = qemu_opt_get(opts, "chroot");
3618 #endif /* CONFIG_POSIX */
3621 error_report("Option not supported in this build");
3627 * Clear error location left behind by the loop.
3628 * Best done right after the loop. Do not insert code here!
3632 qemu_validate_options(machine_opts_dict);
3633 qemu_process_sugar_options();
3636 * These options affect everything else and should be processed
3637 * before daemonizing.
3639 qemu_process_early_options();
3641 qemu_process_help_options();
3642 qemu_maybe_daemonize(pid_file);
3645 * The trace backend must be initialized after daemonizing.
3646 * trace_init_backends() will call st_init(), which will create the
3647 * trace thread in the parent, and also register st_flush_trace_buffer()
3648 * in atexit(). This function will force the parent to wait for the
3649 * writeout thread to finish, which will not occur, and the parent
3650 * process will be left in the host.
3652 if (!trace_init_backends()) {
3657 qemu_init_main_loop(&error_fatal);
3660 user_register_global_props();
3661 replay_configure(icount_opts);
3663 configure_rtc(qemu_find_opts_singleton("rtc"));
3665 /* Transfer QemuOpts options into machine options */
3666 parse_memory_options();
3668 qemu_create_machine(machine_opts_dict);
3672 qemu_disable_default_devices();
3673 qemu_create_default_devices();
3674 qemu_create_early_backends();
3676 qemu_apply_legacy_machine_options(machine_opts_dict);
3677 qemu_apply_machine_options(machine_opts_dict);
3678 qobject_unref(machine_opts_dict);
3679 phase_advance(PHASE_MACHINE_CREATED);
3682 * Note: uses machine properties such as kernel-irqchip, must run
3683 * after qemu_apply_machine_options.
3685 configure_accelerators(argv[0]);
3686 phase_advance(PHASE_ACCEL_CREATED);
3689 * Beware, QOM objects created before this point miss global and
3690 * compat properties.
3692 * Global properties get set up by qdev_prop_register_global(),
3693 * called from user_register_global_props(), and certain option
3694 * desugaring. Also in CPU feature desugaring (buried in
3695 * parse_cpu_option()), which happens below this point, but may
3696 * only target the CPU type, which can only be created after
3697 * parse_cpu_option() returned the type.
3699 * Machine compat properties: object_set_machine_compat_props().
3700 * Accelerator compat props: object_set_accelerator_compat_props(),
3701 * called from do_configure_accelerator().
3704 machine_class = MACHINE_GET_CLASS(current_machine);
3705 if (!qtest_enabled() && machine_class->deprecation_reason) {
3706 warn_report("Machine type '%s' is deprecated: %s",
3707 machine_class->name, machine_class->deprecation_reason);
3711 * Create backends before creating migration objects, so that it can
3712 * check against compatibilities on the backend memories (e.g. postcopy
3713 * over memory-backend-file objects).
3715 qemu_create_late_backends();
3718 * Note: creates a QOM object, must run only after global and
3719 * compat properties have been set up.
3721 migration_object_init();
3723 /* parse features once if machine provides default cpu_type */
3724 current_machine->cpu_type = machine_class->default_cpu_type;
3726 current_machine->cpu_type = parse_cpu_option(cpu_option);
3728 /* NB: for machine none cpu_type could STILL be NULL here! */
3730 qemu_resolve_machine_memdev();
3731 parse_numa_opts(current_machine);
3733 if (vmstate_dump_file) {
3735 module_load_qom_all();
3736 dump_vmstate_json_to_file(vmstate_dump_file);
3740 if (!preconfig_requested) {
3741 qmp_x_exit_preconfig(&error_fatal);
3743 qemu_init_displays();
3744 accel_setup_post(current_machine);