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
);