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
},
221 static QemuOptsList qemu_rtc_opts
= {
223 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
228 .type
= QEMU_OPT_STRING
,
231 .type
= QEMU_OPT_STRING
,
234 .type
= QEMU_OPT_STRING
,
236 { /* end of list */ }
240 static QemuOptsList qemu_option_rom_opts
= {
241 .name
= "option-rom",
242 .implied_opt_name
= "romfile",
243 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
247 .type
= QEMU_OPT_NUMBER
,
250 .type
= QEMU_OPT_STRING
,
252 { /* end of list */ }
256 static QemuOptsList qemu_accel_opts
= {
258 .implied_opt_name
= "accel",
259 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting accelerator properties
270 static QemuOptsList qemu_boot_opts
= {
272 .implied_opt_name
= "order",
274 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
278 .type
= QEMU_OPT_STRING
,
281 .type
= QEMU_OPT_STRING
,
284 .type
= QEMU_OPT_BOOL
,
287 .type
= QEMU_OPT_STRING
,
289 .name
= "splash-time",
290 .type
= QEMU_OPT_NUMBER
,
292 .name
= "reboot-timeout",
293 .type
= QEMU_OPT_NUMBER
,
296 .type
= QEMU_OPT_BOOL
,
302 static QemuOptsList qemu_add_fd_opts
= {
304 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
308 .type
= QEMU_OPT_NUMBER
,
309 .help
= "file descriptor of which a duplicate is added to fd set",
312 .type
= QEMU_OPT_NUMBER
,
313 .help
= "ID of the fd set to add fd to",
316 .type
= QEMU_OPT_STRING
,
317 .help
= "free-form string used to describe fd",
319 { /* end of list */ }
323 static QemuOptsList qemu_object_opts
= {
325 .implied_opt_name
= "qom-type",
326 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
332 static QemuOptsList qemu_tpmdev_opts
= {
334 .implied_opt_name
= "type",
335 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
337 /* options are defined in the TPM backends */
338 { /* end of list */ }
342 static QemuOptsList qemu_overcommit_opts
= {
343 .name
= "overcommit",
344 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
348 .type
= QEMU_OPT_BOOL
,
352 .type
= QEMU_OPT_BOOL
,
354 { /* end of list */ }
358 static QemuOptsList qemu_msg_opts
= {
360 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
364 .type
= QEMU_OPT_BOOL
,
367 .name
= "guest-name",
368 .type
= QEMU_OPT_BOOL
,
369 .help
= "Prepends guest name for error messages but only if "
370 "-name guest is set otherwise option is ignored\n",
372 { /* end of list */ }
376 static QemuOptsList qemu_name_opts
= {
378 .implied_opt_name
= "guest",
380 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
384 .type
= QEMU_OPT_STRING
,
385 .help
= "Sets the name of the guest.\n"
386 "This name will be displayed in the SDL window caption.\n"
387 "The name will also be used for the VNC server",
390 .type
= QEMU_OPT_STRING
,
391 .help
= "Sets the name of the QEMU process, as shown in top etc",
393 .name
= "debug-threads",
394 .type
= QEMU_OPT_BOOL
,
395 .help
= "When enabled, name the individual threads; defaults off.\n"
396 "NOTE: The thread names are for debugging and not a\n"
399 { /* End of list */ }
403 static QemuOptsList qemu_mem_opts
= {
405 .implied_opt_name
= "size",
406 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
411 .type
= QEMU_OPT_SIZE
,
415 .type
= QEMU_OPT_NUMBER
,
419 .type
= QEMU_OPT_SIZE
,
421 { /* end of list */ }
425 static QemuOptsList qemu_icount_opts
= {
427 .implied_opt_name
= "shift",
429 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
433 .type
= QEMU_OPT_STRING
,
436 .type
= QEMU_OPT_BOOL
,
439 .type
= QEMU_OPT_BOOL
,
442 .type
= QEMU_OPT_STRING
,
445 .type
= QEMU_OPT_STRING
,
447 .name
= "rrsnapshot",
448 .type
= QEMU_OPT_STRING
,
450 { /* end of list */ }
454 static QemuOptsList qemu_fw_cfg_opts
= {
456 .implied_opt_name
= "name",
457 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
461 .type
= QEMU_OPT_STRING
,
462 .help
= "Sets the fw_cfg name of the blob to be inserted",
465 .type
= QEMU_OPT_STRING
,
466 .help
= "Sets the name of the file from which "
467 "the fw_cfg blob will be loaded",
470 .type
= QEMU_OPT_STRING
,
471 .help
= "Sets content of the blob to be inserted from a string",
474 .type
= QEMU_OPT_STRING
,
475 .help
= "Sets id of the object generating the fw_cfg blob "
478 { /* end of list */ }
482 static QemuOptsList qemu_action_opts
= {
485 .head
= QTAILQ_HEAD_INITIALIZER(qemu_action_opts
.head
),
489 .type
= QEMU_OPT_STRING
,
492 .type
= QEMU_OPT_STRING
,
495 .type
= QEMU_OPT_STRING
,
498 .type
= QEMU_OPT_STRING
,
500 { /* end of list */ }
504 const char *qemu_get_vm_name(void)
509 static void default_driver_disable(const char *driver
)
517 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
518 if (strcmp(default_list
[i
].driver
, driver
) != 0)
520 *(default_list
[i
].flag
) = 0;
524 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
526 const char *driver
= qemu_opt_get(opts
, "driver");
528 default_driver_disable(driver
);
532 static void default_driver_check_json(void)
536 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
537 const char *driver
= qdict_get_try_str(opt
->opts
, "driver");
538 default_driver_disable(driver
);
542 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
544 const char *proc_name
;
546 if (qemu_opt_get(opts
, "debug-threads")) {
547 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
549 qemu_name
= qemu_opt_get(opts
, "guest");
551 proc_name
= qemu_opt_get(opts
, "process");
553 os_set_proc_name(proc_name
);
559 bool defaults_enabled(void)
565 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
567 int fd
, dupfd
, flags
;
569 const char *fd_opaque
= NULL
;
572 fd
= qemu_opt_get_number(opts
, "fd", -1);
573 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
574 fd_opaque
= qemu_opt_get(opts
, "opaque");
577 error_setg(errp
, "fd option is required and must be non-negative");
581 if (fd
<= STDERR_FILENO
) {
582 error_setg(errp
, "fd cannot be a standard I/O stream");
587 * All fds inherited across exec() necessarily have FD_CLOEXEC
588 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
590 flags
= fcntl(fd
, F_GETFD
);
591 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
592 error_setg(errp
, "fd is not valid or already in use");
597 error_setg(errp
, "set option is required and must be non-negative");
601 #ifdef F_DUPFD_CLOEXEC
602 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
606 qemu_set_cloexec(dupfd
);
610 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
614 /* add the duplicate fd, and optionally the opaque string, to the fd set */
615 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, fd_opaque
,
622 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
626 fd
= qemu_opt_get_number(opts
, "fd", -1);
633 /***********************************************************/
634 /* QEMU Block devices */
636 #define HD_OPTS "media=disk"
637 #define CDROM_OPTS "media=cdrom"
639 #define PFLASH_OPTS ""
643 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
645 BlockInterfaceType
*block_default_type
= opaque
;
647 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
650 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
652 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
653 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
658 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
659 int index
, const char *optstr
)
664 if (!enable
|| drive_get_by_index(type
, index
)) {
668 opts
= drive_add(type
, index
, NULL
, optstr
);
670 drive_enable_snapshot(NULL
, opts
, NULL
);
673 dinfo
= drive_new(opts
, type
, &error_abort
);
674 dinfo
->is_default
= true;
678 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
679 MachineClass
*machine_class
, int snapshot
)
682 * If the currently selected machine wishes to override the
683 * units-per-bus property of its default HBA interface type, do so
686 if (machine_class
->units_per_default_bus
) {
687 override_max_devs(machine_class
->block_default_type
,
688 machine_class
->units_per_default_bus
);
691 /* open the virtual block devices */
692 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
693 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
695 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
696 loc_push_restore(&bdo
->loc
);
697 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
699 qapi_free_BlockdevOptions(bdo
->bdo
);
703 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
706 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
707 &machine_class
->block_default_type
, &error_fatal
)) {
708 /* We printed help */
712 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
714 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
715 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
719 static QemuOptsList qemu_smp_opts
= {
721 .implied_opt_name
= "cpus",
723 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
727 .type
= QEMU_OPT_NUMBER
,
730 .type
= QEMU_OPT_NUMBER
,
733 .type
= QEMU_OPT_NUMBER
,
736 .type
= QEMU_OPT_NUMBER
,
739 .type
= QEMU_OPT_NUMBER
,
742 .type
= QEMU_OPT_NUMBER
,
745 .type
= QEMU_OPT_NUMBER
,
751 #if defined(CONFIG_POSIX)
752 static QemuOptsList qemu_run_with_opts
= {
754 .head
= QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts
.head
),
756 #if defined(CONFIG_LINUX)
758 .name
= "async-teardown",
759 .type
= QEMU_OPT_BOOL
,
764 .type
= QEMU_OPT_STRING
,
766 { /* end of list */ }
770 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
774 #define qemu_add_run_with_opts()
776 #endif /* CONFIG_POSIX */
778 static void realtime_init(void)
781 if (os_mlock() < 0) {
782 error_report("locking memory failed");
789 static void configure_msg(QemuOpts
*opts
)
791 message_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
792 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
796 /***********************************************************/
799 static int usb_device_add(const char *devname
)
801 USBDevice
*dev
= NULL
;
803 if (!machine_usb(current_machine
)) {
807 dev
= usbdevice_create(devname
);
814 static int usb_parse(const char *cmdline
)
817 r
= usb_device_add(cmdline
);
819 error_report("could not add USB device '%s'", cmdline
);
824 /***********************************************************/
825 /* machine registration */
827 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
831 for (el
= machines
; el
; el
= el
->next
) {
832 MachineClass
*mc
= el
->data
;
834 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
842 static MachineClass
*find_default_machine(GSList
*machines
)
845 MachineClass
*default_machineclass
= NULL
;
847 for (el
= machines
; el
; el
= el
->next
) {
848 MachineClass
*mc
= el
->data
;
850 if (mc
->is_default
) {
851 assert(default_machineclass
== NULL
&& "Multiple default machines");
852 default_machineclass
= mc
;
856 return default_machineclass
;
859 static void version(void)
861 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
862 QEMU_COPYRIGHT
"\n");
865 static void help(int exitcode
)
868 printf("usage: %s [options] [disk_image]\n\n"
869 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
872 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
873 if ((arch_mask) & arch_type) \
874 fputs(opt_help, stdout);
876 #define ARCHHEADING(text, arch_mask) \
877 if ((arch_mask) & arch_type) \
878 puts(stringify(text));
880 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
882 #include "qemu-options.def"
884 printf("\nDuring emulation, the following keys are useful:\n"
885 "ctrl-alt-f toggle full screen\n"
886 "ctrl-alt-n switch to virtual console 'n'\n"
887 "ctrl-alt toggle mouse and keyboard grab\n"
889 "When using -nographic, press 'ctrl-a h' to get some help.\n"
891 QEMU_HELP_BOTTOM
"\n");
898 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
900 #define DEFHEADING(text)
901 #define ARCHHEADING(text, arch_mask)
903 #include "qemu-options.def"
906 #define HAS_ARG 0x0001
908 typedef struct QEMUOption
{
915 static const QEMUOption qemu_options
[] = {
916 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
918 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
919 { option, opt_arg, opt_enum, arch_mask },
920 #define DEFHEADING(text)
921 #define ARCHHEADING(text, arch_mask)
923 #include "qemu-options.def"
924 { /* end of list */ }
927 typedef struct VGAInterfaceInfo
{
928 const char *opt_name
; /* option name */
929 const char *name
; /* human-readable name */
930 /* Class names indicating that support is available.
931 * If no class is specified, the interface is always available */
932 const char *class_names
[2];
935 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
938 .name
= "no graphic card",
942 .name
= "standard VGA",
943 .class_names
= { "VGA", "isa-vga" },
946 .opt_name
= "cirrus",
947 .name
= "Cirrus VGA",
948 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
951 .opt_name
= "vmware",
952 .name
= "VMWare SVGA",
953 .class_names
= { "vmware-svga" },
956 .opt_name
= "virtio",
957 .name
= "Virtio VGA",
958 .class_names
= { "virtio-vga" },
963 .class_names
= { "qxl-vga" },
967 .name
= "TCX framebuffer",
968 .class_names
= { "sun-tcx" },
972 .name
= "CG3 framebuffer",
973 .class_names
= { "cgthree" },
975 #ifdef CONFIG_XEN_BACKEND
978 .name
= "Xen paravirtualized framebuffer",
983 static bool vga_interface_available(VGAInterfaceType t
)
985 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
987 assert(t
< VGA_TYPE_MAX
);
988 return !ti
->class_names
[0] ||
989 module_object_class_by_name(ti
->class_names
[0]) ||
990 module_object_class_by_name(ti
->class_names
[1]);
994 get_default_vga_model(const MachineClass
*machine_class
)
996 if (machine_class
->default_display
) {
997 for (int t
= 0; t
< VGA_TYPE_MAX
; t
++) {
998 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1000 if (ti
->opt_name
&& vga_interface_available(t
) &&
1001 g_str_equal(ti
->opt_name
, machine_class
->default_display
)) {
1002 return machine_class
->default_display
;
1006 warn_report_once("Default display '%s' is not available in this binary",
1007 machine_class
->default_display
);
1009 } else if (vga_interface_available(VGA_CIRRUS
)) {
1011 } else if (vga_interface_available(VGA_STD
)) {
1018 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1023 if (g_str_equal(p
, "help")) {
1024 const char *def
= get_default_vga_model(machine_class
);
1026 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1027 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1029 if (vga_interface_available(t
) && ti
->opt_name
) {
1030 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1031 (def
&& g_str_equal(ti
->opt_name
, def
)) ?
1038 assert(vga_interface_type
== VGA_NONE
);
1039 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1040 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1041 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1042 if (!vga_interface_available(t
)) {
1043 error_report("%s not available", ti
->name
);
1046 vga_interface_type
= t
;
1050 if (t
== VGA_TYPE_MAX
) {
1052 error_report("unknown vga type: %s", p
);
1056 const char *nextopt
;
1058 if (strstart(opts
, ",retrace=", &nextopt
)) {
1060 if (strstart(opts
, "dumb", &nextopt
))
1061 vga_retrace_method
= VGA_RETRACE_DUMB
;
1062 else if (strstart(opts
, "precise", &nextopt
))
1063 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1064 else goto invalid_vga
;
1065 } else goto invalid_vga
;
1070 static void parse_display_qapi(const char *str
)
1072 DisplayOptions
*opts
;
1075 v
= qobject_input_visitor_new_str(str
, "type", &error_fatal
);
1077 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1078 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1080 qapi_free_DisplayOptions(opts
);
1084 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1086 return QAPI_CLONE(DisplayOptions
, &dpy
);
1089 static void parse_display(const char *p
)
1093 if (is_help_option(p
)) {
1094 qemu_display_help();
1098 if (strstart(p
, "vnc", &opts
)) {
1100 * vnc isn't a (local) DisplayType but a protocol for remote
1104 vnc_parse(opts
+ 1);
1106 error_report("VNC requires a display argument vnc=<display>");
1110 parse_display_qapi(p
);
1114 static inline bool nonempty_str(const char *str
)
1119 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1123 const char *name
, *file
, *str
, *gen_id
;
1124 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1126 if (fw_cfg
== NULL
) {
1127 error_setg(errp
, "fw_cfg device not available");
1130 name
= qemu_opt_get(opts
, "name");
1131 file
= qemu_opt_get(opts
, "file");
1132 str
= qemu_opt_get(opts
, "string");
1133 gen_id
= qemu_opt_get(opts
, "gen_id");
1135 /* we need the name, and exactly one of: file, content string, gen_id */
1136 if (!nonempty_str(name
) ||
1137 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1138 error_setg(errp
, "name, plus exactly one of file,"
1139 " string and gen_id, are needed");
1142 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1143 error_setg(errp
, "name too long (max. %d char)",
1144 FW_CFG_MAX_FILE_PATH
- 1);
1147 if (nonempty_str(gen_id
)) {
1149 * In this particular case where the content is populated
1150 * internally, the "etc/" namespace protection is relaxed,
1151 * so do not emit a warning.
1153 } else if (strncmp(name
, "opt/", 4) != 0) {
1154 warn_report("externally provided fw_cfg item names "
1155 "should be prefixed with \"opt/\"");
1157 if (nonempty_str(str
)) {
1158 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1159 buf
= g_memdup(str
, size
);
1160 } else if (nonempty_str(gen_id
)) {
1161 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1167 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1168 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1173 /* For legacy, keep user files in a specific global order. */
1174 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1175 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1176 fw_cfg_reset_order_override(fw_cfg
);
1180 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1182 return qdev_device_help(opts
);
1185 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1189 dev
= qdev_device_add(opts
, errp
);
1190 if (!dev
&& *errp
) {
1191 error_report_err(*errp
);
1194 object_unref(OBJECT(dev
));
1199 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1201 Error
*local_err
= NULL
;
1203 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1205 error_propagate(errp
, local_err
);
1213 #ifdef CONFIG_VIRTFS
1214 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1216 return qemu_fsdev_add(opts
, errp
);
1220 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1222 return monitor_init_opts(opts
, errp
);
1225 static void monitor_parse(const char *str
, const char *mode
, bool pretty
)
1227 static int monitor_device_index
= 0;
1232 if (strstart(str
, "chardev:", &p
)) {
1233 snprintf(label
, sizeof(label
), "%s", p
);
1235 snprintf(label
, sizeof(label
), "compat_monitor%d",
1236 monitor_device_index
);
1237 opts
= qemu_chr_parse_compat(label
, str
, true);
1239 error_report("parse error: %s", str
);
1244 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1245 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1246 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1247 if (!strcmp(mode
, "control")) {
1248 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1250 assert(pretty
== false);
1252 monitor_device_index
++;
1255 struct device_config
{
1257 DEV_USB
, /* -usbdevice */
1258 DEV_SERIAL
, /* -serial */
1259 DEV_PARALLEL
, /* -parallel */
1260 DEV_DEBUGCON
, /* -debugcon */
1261 DEV_GDB
, /* -gdb, -s */
1262 DEV_SCLP
, /* s390 sclp */
1264 const char *cmdline
;
1266 QTAILQ_ENTRY(device_config
) next
;
1269 static QTAILQ_HEAD(, device_config
) device_configs
=
1270 QTAILQ_HEAD_INITIALIZER(device_configs
);
1272 static void add_device_config(int type
, const char *cmdline
)
1274 struct device_config
*conf
;
1276 conf
= g_malloc0(sizeof(*conf
));
1278 conf
->cmdline
= cmdline
;
1279 loc_save(&conf
->loc
);
1280 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1283 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1285 struct device_config
*conf
;
1288 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1289 if (conf
->type
!= type
)
1291 loc_push_restore(&conf
->loc
);
1292 rc
= func(conf
->cmdline
);
1293 loc_pop(&conf
->loc
);
1301 static void qemu_disable_default_devices(void)
1303 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1305 default_driver_check_json();
1306 qemu_opts_foreach(qemu_find_opts("device"),
1307 default_driver_check
, NULL
, NULL
);
1308 qemu_opts_foreach(qemu_find_opts("global"),
1309 default_driver_check
, NULL
, NULL
);
1311 if (!vga_model
&& !default_vga
) {
1312 vga_interface_type
= VGA_DEVICE
;
1313 vga_interface_created
= true;
1315 if (!has_defaults
|| machine_class
->no_serial
) {
1318 if (!has_defaults
|| machine_class
->no_parallel
) {
1319 default_parallel
= 0;
1321 if (!has_defaults
|| machine_class
->no_floppy
) {
1324 if (!has_defaults
|| machine_class
->no_cdrom
) {
1327 if (!has_defaults
|| machine_class
->no_sdcard
) {
1330 if (!has_defaults
) {
1332 default_monitor
= 0;
1336 if (default_net
&& machine_class
->default_nic
&&
1337 !module_object_class_by_name(machine_class
->default_nic
)) {
1338 warn_report("Default NIC '%s' is not available in this binary",
1339 machine_class
->default_nic
);
1345 static void qemu_create_default_devices(void)
1347 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1349 if (is_daemonized()) {
1350 /* According to documentation and historically, -nographic redirects
1351 * serial port, parallel port and monitor to stdio, which does not work
1352 * with -daemonize. We can redirect these to null instead, but since
1353 * -nographic is legacy, let's just error out.
1354 * We disallow -nographic only if all other ports are not redirected
1355 * explicitly, to not break existing legacy setups which uses
1356 * -nographic _and_ redirects all ports explicitly - this is valid
1357 * usage, -nographic is just a no-op in this case.
1360 && (default_parallel
|| default_serial
|| default_monitor
)) {
1361 error_report("-nographic cannot be used with -daemonize");
1367 if (default_parallel
)
1368 add_device_config(DEV_PARALLEL
, "null");
1369 if (default_serial
&& default_monitor
) {
1370 add_device_config(DEV_SERIAL
, "mon:stdio");
1373 add_device_config(DEV_SERIAL
, "stdio");
1374 if (default_monitor
)
1375 monitor_parse("stdio", "readline", false);
1379 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
1380 if (default_parallel
)
1381 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
1382 if (default_monitor
)
1383 monitor_parse("vc:80Cx24C", "readline", false);
1387 QemuOptsList
*net
= qemu_find_opts("net");
1388 qemu_opts_parse(net
, "nic", true, &error_abort
);
1390 qemu_opts_parse(net
, "user", true, &error_abort
);
1394 #if defined(CONFIG_VNC)
1395 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
1399 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1400 if (!qemu_display_find_default(&dpy
)) {
1401 dpy
.type
= DISPLAY_TYPE_NONE
;
1402 #if defined(CONFIG_VNC)
1403 vnc_parse("localhost:0,to=99,id=default");
1407 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1408 dpy
.type
= DISPLAY_TYPE_NONE
;
1411 /* If no default VGA is requested, the default is "none". */
1413 vga_model
= get_default_vga_model(machine_class
);
1416 select_vgahw(machine_class
, vga_model
);
1420 static int serial_parse(const char *devname
)
1422 int index
= num_serial_hds
;
1425 if (strcmp(devname
, "none") == 0)
1427 snprintf(label
, sizeof(label
), "serial%d", index
);
1428 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1430 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1431 if (!serial_hds
[index
]) {
1432 error_report("could not connect serial device"
1433 " to character backend '%s'", devname
);
1440 Chardev
*serial_hd(int i
)
1443 if (i
< num_serial_hds
) {
1444 return serial_hds
[i
];
1449 static int parallel_parse(const char *devname
)
1451 static int index
= 0;
1454 if (strcmp(devname
, "none") == 0)
1456 if (index
== MAX_PARALLEL_PORTS
) {
1457 error_report("too many parallel ports");
1460 snprintf(label
, sizeof(label
), "parallel%d", index
);
1461 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1462 if (!parallel_hds
[index
]) {
1463 error_report("could not connect parallel device"
1464 " to character backend '%s'", devname
);
1471 static int debugcon_parse(const char *devname
)
1475 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1476 error_report("invalid character backend '%s'", devname
);
1479 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1481 error_report("already have a debugcon device");
1484 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1485 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1489 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1491 const MachineClass
*mc1
= a
, *mc2
= b
;
1494 if (mc1
->family
== NULL
) {
1495 if (mc2
->family
== NULL
) {
1496 /* Compare standalone machine types against each other; they sort
1497 * in increasing order.
1499 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1500 object_class_get_name(OBJECT_CLASS(mc2
)));
1503 /* Standalone machine types sort after families. */
1507 if (mc2
->family
== NULL
) {
1508 /* Families sort before standalone machine types. */
1512 /* Families sort between each other alphabetically increasingly. */
1513 res
= strcmp(mc1
->family
, mc2
->family
);
1518 /* Within the same family, machine types sort in decreasing order. */
1519 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1520 object_class_get_name(OBJECT_CLASS(mc1
)));
1523 static void machine_help_func(const QDict
*qdict
)
1525 GSList
*machines
, *el
;
1526 const char *type
= qdict_get_try_str(qdict
, "type");
1528 machines
= object_class_get_list(TYPE_MACHINE
, false);
1530 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1531 if (machine_class
) {
1532 type_print_class_properties(object_class_get_name(machine_class
));
1537 printf("Supported machines are:\n");
1538 machines
= g_slist_sort(machines
, machine_class_cmp
);
1539 for (el
= machines
; el
; el
= el
->next
) {
1540 MachineClass
*mc
= el
->data
;
1542 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1544 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1545 mc
->is_default
? " (default)" : "",
1546 mc
->deprecation_reason
? " (deprecated)" : "");
1551 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1556 /* Preserve the caller's reference to prop. */
1558 qdict_put(opts
, propname
, prop
);
1559 keyval_merge(machine_opts_dict
, opts
, errp
);
1560 qobject_unref(opts
);
1564 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1570 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1572 qemu_opts_print_help(opts_list
, true);
1575 machine_merge_property(propname
, prop
, &error_fatal
);
1576 qobject_unref(prop
);
1579 static const char *pid_file
;
1580 struct UnlinkPidfileNotifier
{
1582 char *pid_file_realpath
;
1584 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier
;
1586 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1588 struct UnlinkPidfileNotifier
*upn
;
1590 upn
= DO_UPCAST(struct UnlinkPidfileNotifier
, notifier
, n
);
1591 unlink(upn
->pid_file_realpath
);
1594 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1595 const char **poptarg
, int *poptind
)
1597 const QEMUOption
*popt
;
1598 int optind
= *poptind
;
1599 char *r
= argv
[optind
];
1602 loc_set_cmdline(argv
, optind
, 1);
1604 /* Treat --foo the same as -foo. */
1607 popt
= qemu_options
;
1610 error_report("invalid option");
1613 if (!strcmp(popt
->name
, r
+ 1))
1617 if (popt
->flags
& HAS_ARG
) {
1618 if (optind
>= argc
) {
1619 error_report("requires an argument");
1622 optarg
= argv
[optind
++];
1623 loc_set_cmdline(argv
, optind
- 2, 2);
1634 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1636 const char *machine_type
= qdict_get_try_str(qdict
, "type");
1637 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1638 MachineClass
*machine_class
;
1639 Error
*local_err
= NULL
;
1642 machine_class
= find_machine(machine_type
, machines
);
1643 qdict_del(qdict
, "type");
1644 if (!machine_class
) {
1645 error_setg(&local_err
, "unsupported machine type");
1648 machine_class
= find_default_machine(machines
);
1649 if (!machine_class
) {
1650 error_setg(&local_err
, "No machine specified, and there is no default");
1654 g_slist_free(machines
);
1656 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1657 error_propagate(errp
, local_err
);
1659 return machine_class
;
1662 static int object_parse_property_opt(Object
*obj
,
1663 const char *name
, const char *value
,
1664 const char *skip
, Error
**errp
)
1666 if (g_str_equal(name
, skip
)) {
1670 if (!object_property_parse(obj
, name
, value
, errp
)) {
1677 /* *Non*recursively replace underscores with dashes in QDict keys. */
1678 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1680 const QDictEntry
*ent
, *next
;
1683 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1684 g_autofree
char *new_key
= NULL
;
1686 next
= qdict_next(qdict
, ent
);
1687 if (!strchr(ent
->key
, '_')) {
1690 new_key
= g_strdup(ent
->key
);
1691 for (p
= new_key
; *p
; p
++) {
1696 if (qdict_haskey(qdict
, new_key
)) {
1697 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1700 qobject_ref(ent
->value
);
1701 qdict_put_obj(qdict
, new_key
, ent
->value
);
1702 qdict_del(qdict
, ent
->key
);
1706 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1711 keyval_dashify(qdict
, &error_fatal
);
1713 /* Legacy options do not correspond to MachineState properties. */
1714 value
= qdict_get_try_str(qdict
, "accel");
1716 accelerators
= g_strdup(value
);
1717 qdict_del(qdict
, "accel");
1720 value
= qdict_get_try_str(qdict
, "igd-passthru");
1722 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1724 qdict_del(qdict
, "igd-passthru");
1727 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1729 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1731 qdict_del(qdict
, "kvm-shadow-mem");
1734 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1736 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1738 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1740 qdict_del(qdict
, "kernel-irqchip");
1743 value
= qdict_get_try_str(qdict
, "memory-backend");
1746 error_report("'-mem-path' can't be used together with"
1747 "'-machine memory-backend'");
1751 /* Resolved later. */
1752 ram_memdev_id
= g_strdup(value
);
1753 qdict_del(qdict
, "memory-backend");
1756 prop
= qdict_get(qdict
, "memory");
1758 have_custom_ram_size
=
1759 qobject_type(prop
) == QTYPE_QDICT
&&
1760 qdict_haskey(qobject_to(QDict
, prop
), "size");
1764 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1766 ObjectOption
*opt
, *next
;
1768 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1769 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1770 if (type_opt_predicate(type
)) {
1771 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1772 qapi_free_ObjectOptions(opt
->opts
);
1773 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1779 static void object_option_add_visitor(Visitor
*v
)
1781 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1782 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1783 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1786 static void object_option_parse(const char *str
)
1792 if (str
[0] == '{') {
1793 QObject
*obj
= qobject_from_json(str
, &error_fatal
);
1795 v
= qobject_input_visitor_new(obj
);
1798 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1804 type
= qemu_opt_get(opts
, "qom-type");
1806 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1808 if (user_creatable_print_help(type
, opts
)) {
1812 v
= opts_visitor_new(opts
);
1815 object_option_add_visitor(v
);
1820 * Very early object creation, before the sandbox options have been activated.
1822 static bool object_create_pre_sandbox(const char *type
)
1825 * Objects should in general not get initialized "too early" without
1826 * a reason. If you add one, state the reason in a comment!
1830 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1831 * affinity of threads.
1833 if (g_str_equal(type
, "thread-context")) {
1841 * Initial object creation happens before all other
1842 * QEMU data types are created. The majority of objects
1843 * can be created at this point. The rng-egd object
1844 * cannot be created here, as it depends on the chardev
1847 static bool object_create_early(const char *type
)
1850 * Objects should not be made "delayed" without a reason. If you
1851 * add one, state the reason in a comment!
1854 /* Reason: already created. */
1855 if (object_create_pre_sandbox(type
)) {
1859 /* Reason: property "chardev" */
1860 if (g_str_equal(type
, "rng-egd") ||
1861 g_str_equal(type
, "qtest")) {
1865 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1866 /* Reason: cryptodev-vhost-user property "chardev" */
1867 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1872 /* Reason: vhost-user-blk-server property "node-name" */
1873 if (g_str_equal(type
, "vhost-user-blk-server")) {
1877 * Reason: filter-* property "netdev" etc.
1879 if (g_str_equal(type
, "filter-buffer") ||
1880 g_str_equal(type
, "filter-dump") ||
1881 g_str_equal(type
, "filter-mirror") ||
1882 g_str_equal(type
, "filter-redirector") ||
1883 g_str_equal(type
, "colo-compare") ||
1884 g_str_equal(type
, "filter-rewriter") ||
1885 g_str_equal(type
, "filter-replay")) {
1890 * Allocation of large amounts of memory may delay
1891 * chardev initialization for too long, and trigger timeouts
1892 * on software that waits for a monitor socket to be created
1895 if (g_str_has_prefix(type
, "memory-backend-")) {
1902 static void qemu_apply_machine_options(QDict
*qdict
)
1904 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1906 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1907 /* fall back to the -kernel/-append */
1908 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1911 if (current_machine
->smp
.cpus
> 1) {
1912 replay_add_blocker("smp");
1916 static void qemu_create_early_backends(void)
1918 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1919 #if defined(CONFIG_SDL)
1920 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1922 const bool use_sdl
= false;
1924 #if defined(CONFIG_GTK)
1925 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1927 const bool use_gtk
= false;
1930 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1931 error_report("window-close is only valid for GTK and SDL, "
1935 qemu_display_early_init(&dpy
);
1936 qemu_console_early_init();
1938 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1939 #if defined(CONFIG_OPENGL)
1940 error_report("OpenGL is not supported by the display");
1942 error_report("OpenGL support is disabled");
1947 object_option_foreach_add(object_create_early
);
1949 /* spice needs the timers to be initialized by this point */
1950 /* spice must initialize before audio as it changes the default audiodev */
1951 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1954 qemu_opts_foreach(qemu_find_opts("chardev"),
1955 chardev_init_func
, NULL
, &error_fatal
);
1957 #ifdef CONFIG_VIRTFS
1958 qemu_opts_foreach(qemu_find_opts("fsdev"),
1959 fsdev_init_func
, NULL
, &error_fatal
);
1963 * Note: we need to create audio and block backends before
1964 * setting machine properties, so they can be referred to.
1966 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1967 audio_init_audiodevs();
1968 if (default_audio
) {
1969 audio_create_default_audiodevs();
1975 * The remainder of object creation happens after the
1976 * creation of chardev, fsdev, net clients and device data types.
1978 static bool object_create_late(const char *type
)
1980 return !object_create_early(type
) && !object_create_pre_sandbox(type
);
1983 static void qemu_create_late_backends(void)
1986 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
1991 object_option_foreach_add(object_create_late
);
1993 if (tpm_init() < 0) {
1997 qemu_opts_foreach(qemu_find_opts("mon"),
1998 mon_init_func
, NULL
, &error_fatal
);
2000 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
2002 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
2004 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
2007 /* now chardevs have been created we may have semihosting to connect */
2008 qemu_semihosting_chardev_init();
2011 static void qemu_resolve_machine_memdev(void)
2013 if (ram_memdev_id
) {
2015 ram_addr_t backend_size
;
2017 backend
= object_resolve_path_type(ram_memdev_id
,
2018 TYPE_MEMORY_BACKEND
, NULL
);
2020 error_report("Memory backend '%s' not found", ram_memdev_id
);
2023 if (!have_custom_ram_size
) {
2024 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
2025 current_machine
->ram_size
= backend_size
;
2027 object_property_set_link(OBJECT(current_machine
),
2028 "memory-backend", backend
, &error_fatal
);
2032 static void parse_memory_options(void)
2034 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2036 const char *mem_str
;
2039 loc_push_none(&loc
);
2040 qemu_opts_loc_restore(opts
);
2044 if (qemu_opt_get_size(opts
, "size", 0) != 0) {
2045 /* Fix up legacy suffix-less format */
2046 mem_str
= qemu_opt_get(opts
, "size");
2047 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2048 g_autofree
char *mib_str
= g_strdup_printf("%sM", mem_str
);
2049 qdict_put_str(prop
, "size", mib_str
);
2051 qdict_put_str(prop
, "size", mem_str
);
2055 if (qemu_opt_get(opts
, "maxmem")) {
2056 qdict_put_str(prop
, "max-size", qemu_opt_get(opts
, "maxmem"));
2058 if (qemu_opt_get(opts
, "slots")) {
2059 qdict_put_str(prop
, "slots", qemu_opt_get(opts
, "slots"));
2063 qdict_put(dict
, "memory", prop
);
2064 keyval_merge(machine_opts_dict
, dict
, &error_fatal
);
2065 qobject_unref(dict
);
2069 static void qemu_create_machine(QDict
*qdict
)
2071 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2072 object_set_machine_compat_props(machine_class
->compat_props
);
2074 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2075 object_property_add_child(object_get_root(), "machine",
2076 OBJECT(current_machine
));
2077 object_property_add_child(container_get(OBJECT(current_machine
),
2079 "sysbus", OBJECT(sysbus_get_default()));
2081 if (machine_class
->minimum_page_bits
) {
2082 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2083 /* This would be a board error: specifying a minimum smaller than
2084 * a target's compile-time fixed setting.
2086 g_assert_not_reached();
2090 cpu_exec_init_all();
2093 if (machine_class
->hw_version
) {
2094 qemu_set_hw_version(machine_class
->hw_version
);
2098 * Get the default machine options from the machine if it is not already
2099 * specified either by the configuration file or by the command line.
2101 if (machine_class
->default_machine_opts
) {
2102 QDict
*default_opts
=
2103 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2105 qemu_apply_legacy_machine_options(default_opts
);
2106 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2107 false, &error_abort
);
2108 qobject_unref(default_opts
);
2112 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2116 g
= g_malloc0(sizeof(*g
));
2117 g
->driver
= qemu_opt_get(opts
, "driver");
2118 g
->property
= qemu_opt_get(opts
, "property");
2119 g
->value
= qemu_opt_get(opts
, "value");
2120 qdev_prop_register_global(g
);
2125 * Return whether configuration group @group is stored in QemuOpts, or
2126 * recorded as one or more QDicts by qemu_record_config_group.
2128 static bool is_qemuopts_group(const char *group
)
2130 if (g_str_equal(group
, "object") ||
2131 g_str_equal(group
, "audiodev") ||
2132 g_str_equal(group
, "machine") ||
2133 g_str_equal(group
, "smp-opts") ||
2134 g_str_equal(group
, "boot-opts")) {
2140 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2141 bool from_json
, Error
**errp
)
2143 if (g_str_equal(group
, "object")) {
2144 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2145 object_option_add_visitor(v
);
2148 } else if (g_str_equal(group
, "audiodev")) {
2149 Audiodev
*dev
= NULL
;
2150 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2151 if (visit_type_Audiodev(v
, NULL
, &dev
, errp
)) {
2156 } else if (g_str_equal(group
, "machine")) {
2158 * Cannot merge string-valued and type-safe dictionaries, so JSON
2159 * is not accepted yet for -M.
2162 keyval_merge(machine_opts_dict
, dict
, errp
);
2163 } else if (g_str_equal(group
, "smp-opts")) {
2164 machine_merge_property("smp", dict
, &error_fatal
);
2165 } else if (g_str_equal(group
, "boot-opts")) {
2166 machine_merge_property("boot", dict
, &error_fatal
);
2173 * Parse non-QemuOpts config file groups, pass the rest to
2174 * qemu_config_do_parse.
2176 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2177 void *opaque
, Error
**errp
)
2180 if (is_qemuopts_group(group
)) {
2181 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2185 crumpled
= qdict_crumple(qdict
, errp
);
2189 switch (qobject_type(crumpled
)) {
2191 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2194 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2197 g_assert_not_reached();
2199 qobject_unref(crumpled
);
2202 static void qemu_read_default_config_file(Error
**errp
)
2206 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2208 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2210 if (ret
== -ENOENT
) {
2217 static void qemu_set_option(const char *str
, Error
**errp
)
2219 char group
[64], id
[64], arg
[64];
2224 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2225 if (rc
< 3 || str
[offset
] != '=') {
2226 error_setg(errp
, "can't parse: \"%s\"", str
);
2230 if (!is_qemuopts_group(group
)) {
2231 error_setg(errp
, "-set is not supported with %s", group
);
2233 list
= qemu_find_opts_err(group
, errp
);
2235 opts
= qemu_opts_find(list
, id
);
2237 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2240 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2245 static void user_register_global_props(void)
2247 qemu_opts_foreach(qemu_find_opts("global"),
2248 global_init_func
, NULL
, NULL
);
2251 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2253 icount_configure(opts
, errp
);
2257 static int accelerator_set_property(void *opaque
,
2258 const char *name
, const char *value
,
2261 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2264 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2266 bool *p_init_failed
= opaque
;
2267 const char *acc
= qemu_opt_get(opts
, "accel");
2268 AccelClass
*ac
= accel_find(acc
);
2271 bool qtest_with_kvm
;
2274 error_setg(errp
, QERR_MISSING_PARAMETER
, "accel");
2278 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2281 if (!qtest_with_kvm
) {
2282 error_report("invalid accelerator %s", acc
);
2286 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2287 object_apply_compat_props(OBJECT(accel
));
2288 qemu_opt_foreach(opts
, accelerator_set_property
,
2292 * If legacy -singlestep option is set, honour it for TCG and
2293 * silently ignore for any other accelerator (which is how this
2294 * option has always behaved).
2296 if (opt_one_insn_per_tb
) {
2298 * This will always succeed for TCG, and we want to ignore
2299 * the error from trying to set a nonexistent property
2300 * on any other accelerator.
2302 object_property_set_bool(OBJECT(accel
), "one-insn-per-tb", true, NULL
);
2304 ret
= accel_init_machine(accel
, current_machine
);
2306 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2307 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2315 *p_init_failed
= true;
2319 static void configure_accelerators(const char *progname
)
2321 bool init_failed
= false;
2323 qemu_opts_foreach(qemu_find_opts("icount"),
2324 do_configure_icount
, NULL
, &error_fatal
);
2326 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2327 char **accel_list
, **tmp
;
2329 if (accelerators
== NULL
) {
2330 /* Select the default accelerator */
2331 bool have_tcg
= accel_find("tcg");
2332 bool have_kvm
= accel_find("kvm");
2334 if (have_tcg
&& have_kvm
) {
2335 if (g_str_has_suffix(progname
, "kvm")) {
2336 /* If the program name ends with "kvm", we prefer KVM */
2337 accelerators
= "kvm:tcg";
2339 accelerators
= "tcg:kvm";
2341 } else if (have_kvm
) {
2342 accelerators
= "kvm";
2343 } else if (have_tcg
) {
2344 accelerators
= "tcg";
2346 error_report("No accelerator selected and"
2347 " no default accelerator available");
2351 accel_list
= g_strsplit(accelerators
, ":", 0);
2353 for (tmp
= accel_list
; *tmp
; tmp
++) {
2355 * Filter invalid accelerators here, to prevent obscenities
2356 * such as "-machine accel=tcg,,thread=single".
2358 if (accel_find(*tmp
)) {
2359 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2362 error_report("invalid accelerator %s", *tmp
);
2365 g_strfreev(accel_list
);
2367 if (accelerators
!= NULL
) {
2368 error_report("The -accel and \"-machine accel=\" options are incompatible");
2373 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2374 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2376 error_report("no accelerator found");
2381 if (init_failed
&& !qtest_chrdev
) {
2382 error_report("falling back to %s", current_accel_name());
2385 if (icount_enabled() && !tcg_enabled()) {
2386 error_report("-icount is not allowed with hardware virtualization");
2391 static void qemu_validate_options(const QDict
*machine_opts
)
2393 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2394 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2395 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2397 if (kernel_filename
== NULL
) {
2398 if (kernel_cmdline
!= NULL
) {
2399 error_report("-append only allowed with -kernel option");
2403 if (initrd_filename
!= NULL
) {
2404 error_report("-initrd only allowed with -kernel option");
2409 if (loadvm
&& preconfig_requested
) {
2410 error_report("'preconfig' and 'loadvm' options are "
2411 "mutually exclusive");
2414 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2415 error_report("'preconfig' supports '-incoming defer' only");
2419 #ifdef CONFIG_CURSES
2420 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2421 error_report("curses display cannot be used with -daemonize");
2427 static void qemu_process_sugar_options(void)
2430 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2431 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2432 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2433 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2434 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2435 object_register_sugar_prop("memory-backend", "prealloc-threads",
2439 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2443 /* -action processing */
2446 * Process all the -action parameters parsed from cmdline.
2448 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2450 Error
*local_err
= NULL
;
2451 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2452 QObject
*ret
= NULL
;
2453 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2455 qobject_unref(qdict
);
2457 error_propagate(errp
, local_err
);
2463 static void qemu_process_early_options(void)
2465 qemu_opts_foreach(qemu_find_opts("name"),
2466 parse_name
, NULL
, &error_fatal
);
2468 object_option_foreach_add(object_create_pre_sandbox
);
2470 #ifdef CONFIG_SECCOMP
2471 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2473 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2477 if (qemu_opts_foreach(qemu_find_opts("action"),
2478 process_runstate_actions
, NULL
, &error_fatal
)) {
2483 qemu_opts_foreach(qemu_find_opts("add-fd"),
2484 parse_add_fd
, NULL
, &error_fatal
);
2486 qemu_opts_foreach(qemu_find_opts("add-fd"),
2487 cleanup_add_fd
, NULL
, &error_fatal
);
2490 /* Open the logfile at this point and set the log mask if necessary. */
2494 mask
= qemu_str_to_log_mask(log_mask
);
2496 qemu_print_log_usage(stdout
);
2500 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2503 qemu_add_default_firmwarepath();
2506 static void qemu_process_help_options(void)
2509 * Check for -cpu help and -device help before we call select_machine(),
2510 * which will return an error if the architecture has no default machine
2511 * type and the user did not specify one, so that the user doesn't need
2512 * to say '-cpu help -machine something'.
2514 if (cpu_option
&& is_help_option(cpu_option
)) {
2519 if (qemu_opts_foreach(qemu_find_opts("device"),
2520 device_help_func
, NULL
, NULL
)) {
2524 /* -L help lists the data directories and exits. */
2525 if (list_data_dirs
) {
2526 qemu_list_data_dirs();
2531 static void qemu_maybe_daemonize(const char *pid_file
)
2536 rcu_disable_atfork();
2539 char *pid_file_realpath
= NULL
;
2541 if (!qemu_write_pidfile(pid_file
, &err
)) {
2542 error_reportf_err(err
, "cannot create PID file: ");
2546 pid_file_realpath
= g_malloc0(PATH_MAX
);
2547 if (!realpath(pid_file
, pid_file_realpath
)) {
2548 if (errno
!= ENOENT
) {
2549 warn_report("not removing PID file on exit: cannot resolve PID "
2550 "file path: %s: %s", pid_file
, strerror(errno
));
2555 qemu_unlink_pidfile_notifier
= (struct UnlinkPidfileNotifier
) {
2557 .notify
= qemu_unlink_pidfile
,
2559 .pid_file_realpath
= pid_file_realpath
,
2561 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
.notifier
);
2565 static void qemu_init_displays(void)
2569 /* init local displays */
2570 ds
= init_displaystate();
2571 qemu_display_init(ds
, &dpy
);
2573 /* must be after terminal init, SDL library changes signal handlers */
2574 os_setup_signal_handling();
2576 /* init remote displays */
2578 qemu_opts_foreach(qemu_find_opts("vnc"),
2579 vnc_init_func
, NULL
, &error_fatal
);
2583 qemu_spice
.display_init();
2587 static void qemu_init_board(void)
2589 /* process plugin before CPUs are created, but once -smp has been parsed */
2590 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2592 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2593 machine_run_board_init(current_machine
, mem_path
, &error_fatal
);
2595 drive_check_orphaned();
2600 static void qemu_create_cli_devices(void)
2606 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2607 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2609 /* init USB devices */
2610 if (machine_usb(current_machine
)) {
2611 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2615 /* init generic devices */
2616 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2617 qemu_opts_foreach(qemu_find_opts("device"),
2618 device_init_func
, NULL
, &error_fatal
);
2619 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2621 loc_push_restore(&opt
->loc
);
2623 * TODO Eventually we should call qmp_device_add() here to make sure it
2624 * behaves the same, but QMP still has to accept incorrectly typed
2625 * options until libvirt is fixed and we want to be strict on the CLI
2626 * from the start, so call qdev_device_add_from_qdict() directly for
2629 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2630 object_unref(OBJECT(dev
));
2633 rom_reset_order_override();
2636 static void qemu_machine_creation_done(void)
2638 MachineState
*machine
= MACHINE(qdev_get_machine());
2640 /* Did we create any drives that we failed to create a device for? */
2641 drive_check_orphaned();
2643 /* Don't warn about the default network setup that you get if
2644 * no command line -net or -netdev options are specified. There
2645 * are two cases that we would otherwise complain about:
2646 * (1) board doesn't support a NIC but the implicit "-net nic"
2648 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2649 * sets up a nic that isn't connected to anything.
2651 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2652 net_check_clients();
2655 qdev_prop_check_globals();
2657 qdev_machine_creation_done();
2661 * Verify that Confidential Guest Support has actually been initialized
2663 assert(machine
->cgs
->ready
);
2666 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2669 if (!vga_interface_created
&& !default_vga
&&
2670 vga_interface_type
!= VGA_NONE
) {
2671 warn_report("A -vga option was passed but this machine "
2672 "type does not use that option; "
2673 "No VGA device has been created");
2677 void qmp_x_exit_preconfig(Error
**errp
)
2679 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2680 error_setg(errp
, "The command is permitted only before machine initialization");
2685 qemu_create_cli_devices();
2686 qemu_machine_creation_done();
2689 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2691 if (replay_mode
!= REPLAY_MODE_NONE
) {
2692 replay_vmstate_init();
2696 Error
*local_err
= NULL
;
2697 if (strcmp(incoming
, "defer") != 0) {
2698 qmp_migrate_incoming(incoming
, &local_err
);
2700 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2704 } else if (autostart
) {
2709 void qemu_init(int argc
, char **argv
)
2712 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2713 QemuOptsList
*olist
;
2716 MachineClass
*machine_class
;
2717 bool userconfig
= true;
2718 FILE *vmstate_dump_file
= NULL
;
2720 qemu_add_opts(&qemu_drive_opts
);
2721 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2722 qemu_add_drive_opts(&qemu_common_drive_opts
);
2723 qemu_add_drive_opts(&qemu_drive_opts
);
2724 qemu_add_drive_opts(&bdrv_runtime_opts
);
2725 qemu_add_opts(&qemu_chardev_opts
);
2726 qemu_add_opts(&qemu_device_opts
);
2727 qemu_add_opts(&qemu_netdev_opts
);
2728 qemu_add_opts(&qemu_nic_opts
);
2729 qemu_add_opts(&qemu_net_opts
);
2730 qemu_add_opts(&qemu_rtc_opts
);
2731 qemu_add_opts(&qemu_global_opts
);
2732 qemu_add_opts(&qemu_mon_opts
);
2733 qemu_add_opts(&qemu_trace_opts
);
2734 qemu_plugin_add_opts();
2735 qemu_add_opts(&qemu_option_rom_opts
);
2736 qemu_add_opts(&qemu_accel_opts
);
2737 qemu_add_opts(&qemu_mem_opts
);
2738 qemu_add_opts(&qemu_smp_opts
);
2739 qemu_add_opts(&qemu_boot_opts
);
2740 qemu_add_opts(&qemu_add_fd_opts
);
2741 qemu_add_opts(&qemu_object_opts
);
2742 qemu_add_opts(&qemu_tpmdev_opts
);
2743 qemu_add_opts(&qemu_overcommit_opts
);
2744 qemu_add_opts(&qemu_msg_opts
);
2745 qemu_add_opts(&qemu_name_opts
);
2746 qemu_add_opts(&qemu_numa_opts
);
2747 qemu_add_opts(&qemu_icount_opts
);
2748 qemu_add_opts(&qemu_semihosting_config_opts
);
2749 qemu_add_opts(&qemu_fw_cfg_opts
);
2750 qemu_add_opts(&qemu_action_opts
);
2751 qemu_add_run_with_opts();
2752 module_call_init(MODULE_INIT_OPTS
);
2754 error_init(argv
[0]);
2755 qemu_init_exec_dir(argv
[0]);
2757 qemu_init_arch_modules();
2759 qemu_init_subsystems();
2761 /* first pass of option parsing */
2763 while (optind
< argc
) {
2764 if (argv
[optind
][0] != '-') {
2768 const QEMUOption
*popt
;
2770 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2771 switch (popt
->index
) {
2772 case QEMU_OPTION_nouserconfig
:
2779 machine_opts_dict
= qdict_new();
2781 qemu_read_default_config_file(&error_fatal
);
2784 /* second pass of option parsing */
2789 if (argv
[optind
][0] != '-') {
2790 loc_set_cmdline(argv
, optind
, 1);
2791 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2793 const QEMUOption
*popt
;
2795 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2796 if (!(popt
->arch_mask
& arch_type
)) {
2797 error_report("Option not supported for this target");
2800 switch(popt
->index
) {
2801 case QEMU_OPTION_cpu
:
2802 /* hw initialization will check this */
2803 cpu_option
= optarg
;
2805 case QEMU_OPTION_hda
:
2806 case QEMU_OPTION_hdb
:
2807 case QEMU_OPTION_hdc
:
2808 case QEMU_OPTION_hdd
:
2809 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2812 case QEMU_OPTION_blockdev
:
2815 BlockdevOptionsQueueEntry
*bdo
;
2817 v
= qobject_input_visitor_new_str(optarg
, "driver",
2820 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2821 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2824 loc_save(&bdo
->loc
);
2825 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2828 case QEMU_OPTION_drive
:
2829 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2835 case QEMU_OPTION_set
:
2836 qemu_set_option(optarg
, &error_fatal
);
2838 case QEMU_OPTION_global
:
2839 if (qemu_global_option(optarg
) != 0)
2842 case QEMU_OPTION_mtdblock
:
2843 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2845 case QEMU_OPTION_sd
:
2846 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2848 case QEMU_OPTION_pflash
:
2849 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2851 case QEMU_OPTION_snapshot
:
2853 replay_add_blocker("-snapshot");
2855 case QEMU_OPTION_numa
:
2856 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2862 case QEMU_OPTION_display
:
2863 parse_display(optarg
);
2865 case QEMU_OPTION_nographic
:
2866 qdict_put_str(machine_opts_dict
, "graphics", "off");
2868 dpy
.type
= DISPLAY_TYPE_NONE
;
2870 case QEMU_OPTION_portrait
:
2871 graphic_rotate
= 90;
2873 case QEMU_OPTION_rotate
:
2874 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2875 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2876 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2877 error_report("only 90, 180, 270 deg rotation is available");
2881 case QEMU_OPTION_kernel
:
2882 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2884 case QEMU_OPTION_initrd
:
2885 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2887 case QEMU_OPTION_append
:
2888 qdict_put_str(machine_opts_dict
, "append", optarg
);
2890 case QEMU_OPTION_dtb
:
2891 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2893 case QEMU_OPTION_cdrom
:
2894 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2896 case QEMU_OPTION_boot
:
2897 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2899 case QEMU_OPTION_fda
:
2900 case QEMU_OPTION_fdb
:
2901 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2904 case QEMU_OPTION_no_fd_bootchk
:
2907 case QEMU_OPTION_netdev
:
2909 if (netdev_is_modern(optarg
)) {
2910 netdev_parse_modern(optarg
);
2912 net_client_parse(qemu_find_opts("netdev"), optarg
);
2915 case QEMU_OPTION_nic
:
2917 net_client_parse(qemu_find_opts("nic"), optarg
);
2919 case QEMU_OPTION_net
:
2921 net_client_parse(qemu_find_opts("net"), optarg
);
2923 #ifdef CONFIG_LIBISCSI
2924 case QEMU_OPTION_iscsi
:
2925 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2932 case QEMU_OPTION_audiodev
:
2934 audio_parse_option(optarg
);
2936 case QEMU_OPTION_audio
: {
2939 Audiodev
*dev
= NULL
;
2941 QDict
*dict
= keyval_parse(optarg
, "driver", &help
, &error_fatal
);
2943 if (help
|| (qdict_haskey(dict
, "driver") &&
2944 is_help_option(qdict_get_str(dict
, "driver")))) {
2948 if (!qdict_haskey(dict
, "id")) {
2949 qdict_put_str(dict
, "id", "audiodev0");
2951 if (qdict_haskey(dict
, "model")) {
2952 model
= g_strdup(qdict_get_str(dict
, "model"));
2953 qdict_del(dict
, "model");
2954 if (is_help_option(model
)) {
2955 show_valid_soundhw();
2959 v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2960 qobject_unref(dict
);
2961 visit_type_Audiodev(v
, NULL
, &dev
, &error_fatal
);
2965 select_soundhw(model
, dev
->id
);
2968 audio_define_default(dev
, &error_fatal
);
2975 case QEMU_OPTION_version
:
2980 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg
, true);
2986 case QEMU_OPTION_tpmdev
:
2987 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
2992 case QEMU_OPTION_mempath
:
2995 case QEMU_OPTION_mem_prealloc
:
3004 case QEMU_OPTION_DFILTER
:
3005 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3007 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3008 case QEMU_OPTION_perfmap
:
3009 perf_enable_perfmap();
3011 case QEMU_OPTION_jitdump
:
3012 perf_enable_jitdump();
3015 case QEMU_OPTION_seed
:
3016 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3019 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3021 case QEMU_OPTION_gdb
:
3022 add_device_config(DEV_GDB
, optarg
);
3025 if (is_help_option(optarg
)) {
3026 list_data_dirs
= true;
3028 qemu_add_data_dir(g_strdup(optarg
));
3031 case QEMU_OPTION_bios
:
3032 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
3034 case QEMU_OPTION_singlestep
:
3035 opt_one_insn_per_tb
= true;
3041 keyboard_layout
= optarg
;
3043 case QEMU_OPTION_vga
:
3052 w
= strtol(p
, (char **)&p
, 10);
3055 error_report("invalid resolution or depth");
3061 h
= strtol(p
, (char **)&p
, 10);
3066 depth
= strtol(p
, (char **)&p
, 10);
3067 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3068 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3069 depth
!= 24 && depth
!= 32)
3071 } else if (*p
== '\0') {
3072 depth
= graphic_depth
;
3079 graphic_depth
= depth
;
3082 case QEMU_OPTION_echr
:
3085 term_escape_char
= strtol(optarg
, &r
, 0);
3087 printf("Bad argument to echr\n");
3090 case QEMU_OPTION_monitor
:
3091 default_monitor
= 0;
3092 if (strncmp(optarg
, "none", 4)) {
3093 monitor_parse(optarg
, "readline", false);
3096 case QEMU_OPTION_qmp
:
3097 monitor_parse(optarg
, "control", false);
3098 default_monitor
= 0;
3100 case QEMU_OPTION_qmp_pretty
:
3101 monitor_parse(optarg
, "control", true);
3102 default_monitor
= 0;
3104 case QEMU_OPTION_mon
:
3105 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3110 default_monitor
= 0;
3112 case QEMU_OPTION_chardev
:
3113 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3119 case QEMU_OPTION_fsdev
:
3120 olist
= qemu_find_opts("fsdev");
3122 error_report("fsdev support is disabled");
3125 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3130 case QEMU_OPTION_virtfs
: {
3133 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3136 olist
= qemu_find_opts("virtfs");
3138 error_report("virtfs support is disabled");
3141 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3146 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3147 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3148 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3151 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3152 qemu_opts_id(opts
) ?:
3153 qemu_opt_get(opts
, "mount_tag"),
3156 error_report("duplicate or invalid fsdev id: %s",
3157 qemu_opt_get(opts
, "mount_tag"));
3161 writeout
= qemu_opt_get(opts
, "writeout");
3163 #ifdef CONFIG_SYNC_FILE_RANGE
3164 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3166 error_report("writeout=immediate not supported "
3167 "on this platform");
3171 qemu_opt_set(fsdev
, "fsdriver",
3172 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3173 path
= qemu_opt_get(opts
, "path");
3175 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3177 security_model
= qemu_opt_get(opts
, "security_model");
3178 if (security_model
) {
3179 qemu_opt_set(fsdev
, "security_model", security_model
,
3182 socket
= qemu_opt_get(opts
, "socket");
3184 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3186 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3188 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3191 qemu_opt_set_bool(fsdev
, "readonly",
3192 qemu_opt_get_bool(opts
, "readonly", 0),
3194 multidevs
= qemu_opt_get(opts
, "multidevs");
3196 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3198 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3200 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3201 qemu_opt_set(device
, "fsdev",
3202 qemu_opts_id(fsdev
), &error_abort
);
3203 qemu_opt_set(device
, "mount_tag",
3204 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3207 case QEMU_OPTION_serial
:
3208 add_device_config(DEV_SERIAL
, optarg
);
3210 if (strncmp(optarg
, "mon:", 4) == 0) {
3211 default_monitor
= 0;
3214 case QEMU_OPTION_action
:
3215 olist
= qemu_find_opts("action");
3216 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3220 case QEMU_OPTION_watchdog_action
: {
3221 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3222 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3225 case QEMU_OPTION_parallel
:
3226 add_device_config(DEV_PARALLEL
, optarg
);
3227 default_parallel
= 0;
3228 if (strncmp(optarg
, "mon:", 4) == 0) {
3229 default_monitor
= 0;
3232 case QEMU_OPTION_debugcon
:
3233 add_device_config(DEV_DEBUGCON
, optarg
);
3235 case QEMU_OPTION_loadvm
:
3238 case QEMU_OPTION_full_screen
:
3239 dpy
.has_full_screen
= true;
3240 dpy
.full_screen
= true;
3242 case QEMU_OPTION_pidfile
:
3245 case QEMU_OPTION_win2k_hack
:
3246 win2k_install_hack
= 1;
3248 case QEMU_OPTION_acpitable
:
3249 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3254 acpi_table_add(opts
, &error_fatal
);
3256 case QEMU_OPTION_smbios
:
3257 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3262 smbios_entry_add(opts
, &error_fatal
);
3264 case QEMU_OPTION_fwcfg
:
3265 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3271 case QEMU_OPTION_preconfig
:
3272 preconfig_requested
= true;
3274 case QEMU_OPTION_enable_kvm
:
3275 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3278 case QEMU_OPTION_machine
:
3282 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3284 machine_help_func(machine_opts_dict
);
3289 case QEMU_OPTION_accel
:
3290 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3292 optarg
= qemu_opt_get(accel_opts
, "accel");
3293 if (!optarg
|| is_help_option(optarg
)) {
3294 printf("Accelerators supported in QEMU binary:\n");
3295 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3297 for (el
= accel_list
; el
; el
= el
->next
) {
3298 gchar
*typename
= g_strdup(object_class_get_name(
3299 OBJECT_CLASS(el
->data
)));
3300 /* omit qtest which is used for tests only */
3301 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3302 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3303 gchar
**optname
= g_strsplit(typename
,
3304 ACCEL_CLASS_SUFFIX
, 0);
3305 printf("%s\n", optname
[0]);
3306 g_strfreev(optname
);
3310 g_slist_free(accel_list
);
3314 case QEMU_OPTION_usb
:
3315 qdict_put_str(machine_opts_dict
, "usb", "on");
3317 case QEMU_OPTION_usbdevice
:
3318 qdict_put_str(machine_opts_dict
, "usb", "on");
3319 add_device_config(DEV_USB
, optarg
);
3321 case QEMU_OPTION_device
:
3322 if (optarg
[0] == '{') {
3323 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3324 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3325 opt
->opts
= qobject_to(QDict
, obj
);
3326 loc_save(&opt
->loc
);
3327 assert(opt
->opts
!= NULL
);
3328 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3330 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3336 case QEMU_OPTION_smp
:
3337 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3340 case QEMU_OPTION_vnc
:
3343 case QEMU_OPTION_no_acpi
:
3344 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3345 qdict_put_str(machine_opts_dict
, "acpi", "off");
3347 case QEMU_OPTION_no_hpet
:
3348 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3349 qdict_put_str(machine_opts_dict
, "hpet", "off");
3351 case QEMU_OPTION_no_reboot
:
3352 olist
= qemu_find_opts("action");
3353 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3355 case QEMU_OPTION_no_shutdown
:
3356 olist
= qemu_find_opts("action");
3357 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3359 case QEMU_OPTION_uuid
:
3360 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3361 error_report("failed to parse UUID string: wrong format");
3364 qemu_uuid_set
= true;
3366 case QEMU_OPTION_option_rom
:
3367 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3368 error_report("too many option ROMs");
3371 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3376 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3377 option_rom
[nb_option_roms
].bootindex
=
3378 qemu_opt_get_number(opts
, "bootindex", -1);
3379 if (!option_rom
[nb_option_roms
].name
) {
3380 error_report("Option ROM file is not specified");
3385 case QEMU_OPTION_semihosting
:
3386 qemu_semihosting_enable();
3388 case QEMU_OPTION_semihosting_config
:
3389 if (qemu_semihosting_config_options(optarg
) != 0) {
3393 case QEMU_OPTION_name
:
3394 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3399 /* Capture guest name if -msg guest-name is used later */
3400 error_guest_name
= qemu_opt_get(opts
, "guest");
3402 case QEMU_OPTION_prom_env
:
3403 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3404 error_report("too many prom variables");
3407 prom_envs
[nb_prom_envs
] = optarg
;
3410 case QEMU_OPTION_old_param
:
3413 case QEMU_OPTION_rtc
:
3414 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3420 case QEMU_OPTION_icount
:
3421 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3427 case QEMU_OPTION_incoming
:
3429 runstate_set(RUN_STATE_INMIGRATE
);
3433 case QEMU_OPTION_only_migratable
:
3434 only_migratable
= 1;
3436 case QEMU_OPTION_nodefaults
:
3439 case QEMU_OPTION_xen_domid
:
3440 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3441 error_report("Option not supported for this target");
3444 xen_domid
= atoi(optarg
);
3446 case QEMU_OPTION_xen_attach
:
3447 if (!(accel_find("xen"))) {
3448 error_report("Option not supported for this target");
3451 xen_mode
= XEN_ATTACH
;
3453 case QEMU_OPTION_xen_domid_restrict
:
3454 if (!(accel_find("xen"))) {
3455 error_report("Option not supported for this target");
3458 xen_domid_restrict
= true;
3460 case QEMU_OPTION_trace
:
3461 trace_opt_parse(optarg
);
3463 case QEMU_OPTION_plugin
:
3464 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3466 case QEMU_OPTION_readconfig
:
3467 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3470 case QEMU_OPTION_spice
:
3471 olist
= qemu_find_opts_err("spice", NULL
);
3473 error_report("spice support is disabled");
3476 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3483 case QEMU_OPTION_qtest
:
3484 qtest_chrdev
= optarg
;
3486 case QEMU_OPTION_qtest_log
:
3489 case QEMU_OPTION_sandbox
:
3490 olist
= qemu_find_opts("sandbox");
3492 #ifndef CONFIG_SECCOMP
3493 error_report("-sandbox support is not enabled "
3494 "in this QEMU binary");
3499 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3504 case QEMU_OPTION_add_fd
:
3506 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3512 error_report("File descriptor passing is disabled on this "
3517 case QEMU_OPTION_object
:
3518 object_option_parse(optarg
);
3520 case QEMU_OPTION_overcommit
:
3521 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3526 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3527 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3529 case QEMU_OPTION_compat
:
3531 CompatPolicy
*opts_policy
;
3534 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3537 visit_type_CompatPolicy(v
, NULL
, &opts_policy
, &error_fatal
);
3538 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts_policy
);
3540 qapi_free_CompatPolicy(opts_policy
);
3544 case QEMU_OPTION_msg
:
3545 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3550 configure_msg(opts
);
3552 case QEMU_OPTION_dump_vmstate
:
3553 if (vmstate_dump_file
) {
3554 error_report("only one '-dump-vmstate' "
3555 "option may be given");
3558 vmstate_dump_file
= fopen(optarg
, "w");
3559 if (vmstate_dump_file
== NULL
) {
3560 error_report("open %s: %s", optarg
, strerror(errno
));
3564 case QEMU_OPTION_enable_sync_profile
:
3567 case QEMU_OPTION_nouserconfig
:
3568 /* Nothing to be parsed here. Especially, do not error out below. */
3570 #if defined(CONFIG_POSIX)
3571 case QEMU_OPTION_runas
:
3572 if (!os_set_runas(optarg
)) {
3573 error_report("User \"%s\" doesn't exist"
3574 " (and is not <uid>:<gid>)",
3579 case QEMU_OPTION_chroot
:
3580 warn_report("option is deprecated,"
3581 " use '-run-with chroot=...' instead");
3582 os_set_chroot(optarg
);
3584 case QEMU_OPTION_daemonize
:
3585 os_set_daemonize(true);
3587 #if defined(CONFIG_LINUX)
3589 case QEMU_OPTION_asyncteardown
:
3590 init_async_teardown();
3593 case QEMU_OPTION_run_with
: {
3595 opts
= qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3600 #if defined(CONFIG_LINUX)
3601 if (qemu_opt_get_bool(opts
, "async-teardown", false)) {
3602 init_async_teardown();
3605 str
= qemu_opt_get(opts
, "chroot");
3611 #endif /* CONFIG_POSIX */
3614 error_report("Option not supported in this build");
3620 * Clear error location left behind by the loop.
3621 * Best done right after the loop. Do not insert code here!
3625 qemu_validate_options(machine_opts_dict
);
3626 qemu_process_sugar_options();
3629 * These options affect everything else and should be processed
3630 * before daemonizing.
3632 qemu_process_early_options();
3634 qemu_process_help_options();
3635 qemu_maybe_daemonize(pid_file
);
3638 * The trace backend must be initialized after daemonizing.
3639 * trace_init_backends() will call st_init(), which will create the
3640 * trace thread in the parent, and also register st_flush_trace_buffer()
3641 * in atexit(). This function will force the parent to wait for the
3642 * writeout thread to finish, which will not occur, and the parent
3643 * process will be left in the host.
3645 if (!trace_init_backends()) {
3650 qemu_init_main_loop(&error_fatal
);
3653 user_register_global_props();
3654 replay_configure(icount_opts
);
3656 configure_rtc(qemu_find_opts_singleton("rtc"));
3658 /* Transfer QemuOpts options into machine options */
3659 parse_memory_options();
3661 qemu_create_machine(machine_opts_dict
);
3665 qemu_disable_default_devices();
3666 qemu_create_default_devices();
3667 qemu_create_early_backends();
3669 qemu_apply_legacy_machine_options(machine_opts_dict
);
3670 qemu_apply_machine_options(machine_opts_dict
);
3671 qobject_unref(machine_opts_dict
);
3672 phase_advance(PHASE_MACHINE_CREATED
);
3675 * Note: uses machine properties such as kernel-irqchip, must run
3676 * after qemu_apply_machine_options.
3678 configure_accelerators(argv
[0]);
3679 phase_advance(PHASE_ACCEL_CREATED
);
3682 * Beware, QOM objects created before this point miss global and
3683 * compat properties.
3685 * Global properties get set up by qdev_prop_register_global(),
3686 * called from user_register_global_props(), and certain option
3687 * desugaring. Also in CPU feature desugaring (buried in
3688 * parse_cpu_option()), which happens below this point, but may
3689 * only target the CPU type, which can only be created after
3690 * parse_cpu_option() returned the type.
3692 * Machine compat properties: object_set_machine_compat_props().
3693 * Accelerator compat props: object_set_accelerator_compat_props(),
3694 * called from do_configure_accelerator().
3697 machine_class
= MACHINE_GET_CLASS(current_machine
);
3698 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3699 warn_report("Machine type '%s' is deprecated: %s",
3700 machine_class
->name
, machine_class
->deprecation_reason
);
3704 * Create backends before creating migration objects, so that it can
3705 * check against compatibilities on the backend memories (e.g. postcopy
3706 * over memory-backend-file objects).
3708 qemu_create_late_backends();
3711 * Note: creates a QOM object, must run only after global and
3712 * compat properties have been set up.
3714 migration_object_init();
3716 /* parse features once if machine provides default cpu_type */
3717 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
3719 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3721 /* NB: for machine none cpu_type could STILL be NULL here! */
3723 qemu_resolve_machine_memdev();
3724 parse_numa_opts(current_machine
);
3726 if (vmstate_dump_file
) {
3728 module_load_qom_all();
3729 dump_vmstate_json_to_file(vmstate_dump_file
);
3733 if (!preconfig_requested
) {
3734 qmp_x_exit_preconfig(&error_fatal
);
3736 qemu_init_displays();
3737 accel_setup_post(current_machine
);