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"
53 #include "hw/isa/isa.h"
54 #include "hw/scsi/scsi.h"
55 #include "hw/display/vga.h"
56 #include "hw/firmware/smbios.h"
57 #include "hw/acpi/acpi.h"
58 #include "hw/xen/xen.h"
59 #include "hw/loader.h"
60 #include "monitor/qdev.h"
62 #include "net/slirp.h"
63 #include "monitor/monitor.h"
64 #include "ui/console.h"
66 #include "sysemu/sysemu.h"
67 #include "sysemu/numa.h"
68 #include "sysemu/hostmem.h"
69 #include "exec/gdbstub.h"
70 #include "qemu/timer.h"
71 #include "chardev/char.h"
72 #include "qemu/bitmap.h"
74 #include "sysemu/blockdev.h"
75 #include "hw/block/block.h"
76 #include "hw/i386/x86.h"
77 #include "hw/i386/pc.h"
78 #include "migration/misc.h"
79 #include "migration/snapshot.h"
80 #include "sysemu/tpm.h"
81 #include "sysemu/dma.h"
82 #include "hw/audio/soundhw.h"
83 #include "audio/audio.h"
84 #include "sysemu/cpus.h"
85 #include "sysemu/cpu-timers.h"
86 #include "migration/colo.h"
87 #include "migration/postcopy-ram.h"
88 #include "sysemu/kvm.h"
89 #include "sysemu/hax.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/qemu-options.h"
94 #include "qemu/main-loop.h"
96 #include "fsdev/qemu-fsdev.h"
98 #include "sysemu/qtest.h"
100 #include "accel/tcg/perf.h"
103 #include "disas/disas.h"
106 #include "trace/control.h"
107 #include "qemu/plugin.h"
108 #include "qemu/queue.h"
109 #include "sysemu/arch_init.h"
110 #include "exec/confidential-guest-support.h"
112 #include "ui/qemu-spice.h"
113 #include "qapi/string-input-visitor.h"
114 #include "qapi/opts-visitor.h"
115 #include "qapi/clone-visitor.h"
116 #include "qom/object_interfaces.h"
117 #include "semihosting/semihost.h"
118 #include "crypto/init.h"
119 #include "sysemu/replay.h"
120 #include "qapi/qapi-events-run-state.h"
121 #include "qapi/qapi-types-audio.h"
122 #include "qapi/qapi-visit-audio.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-compat.h"
125 #include "qapi/qapi-visit-machine.h"
126 #include "qapi/qapi-visit-ui.h"
127 #include "qapi/qapi-commands-block-core.h"
128 #include "qapi/qapi-commands-migration.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-visit-qom.h"
131 #include "qapi/qapi-commands-ui.h"
132 #include "qapi/qmp/qdict.h"
133 #include "block/qdict.h"
134 #include "qapi/qmp/qerror.h"
135 #include "sysemu/iothread.h"
136 #include "qemu/guest-random.h"
137 #include "qemu/keyval.h"
139 #define MAX_VIRTIO_CONSOLES 1
141 typedef struct BlockdevOptionsQueueEntry
{
142 BlockdevOptions
*bdo
;
144 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
145 } BlockdevOptionsQueueEntry
;
147 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
149 typedef struct ObjectOption
{
151 QTAILQ_ENTRY(ObjectOption
) next
;
154 typedef struct DeviceOption
{
157 QTAILQ_ENTRY(DeviceOption
) next
;
160 static const char *cpu_option
;
161 static const char *mem_path
;
162 static const char *incoming
;
163 static const char *loadvm
;
164 static const char *accelerators
;
165 static bool have_custom_ram_size
;
166 static const char *ram_memdev_id
;
167 static QDict
*machine_opts_dict
;
168 static QTAILQ_HEAD(, ObjectOption
) object_opts
= QTAILQ_HEAD_INITIALIZER(object_opts
);
169 static QTAILQ_HEAD(, DeviceOption
) device_opts
= QTAILQ_HEAD_INITIALIZER(device_opts
);
170 static int display_remote
;
172 static bool preconfig_requested
;
173 static QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
174 static BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
175 static bool nographic
= false;
176 static int mem_prealloc
; /* force preallocation of physical target memory */
177 static const char *vga_model
= NULL
;
178 static DisplayOptions dpy
;
179 static int num_serial_hds
;
180 static Chardev
**serial_hds
;
181 static const char *log_mask
;
182 static const char *log_file
;
183 static bool list_data_dirs
;
184 static const char *qtest_chrdev
;
185 static const char *qtest_log
;
187 static int has_defaults
= 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 static void realtime_init(void)
754 if (os_mlock() < 0) {
755 error_report("locking memory failed");
762 static void configure_msg(QemuOpts
*opts
)
764 message_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
765 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
769 /***********************************************************/
772 static int usb_device_add(const char *devname
)
774 USBDevice
*dev
= NULL
;
776 if (!machine_usb(current_machine
)) {
780 dev
= usbdevice_create(devname
);
787 static int usb_parse(const char *cmdline
)
790 r
= usb_device_add(cmdline
);
792 error_report("could not add USB device '%s'", cmdline
);
797 /***********************************************************/
798 /* machine registration */
800 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
804 for (el
= machines
; el
; el
= el
->next
) {
805 MachineClass
*mc
= el
->data
;
807 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
815 static MachineClass
*find_default_machine(GSList
*machines
)
818 MachineClass
*default_machineclass
= NULL
;
820 for (el
= machines
; el
; el
= el
->next
) {
821 MachineClass
*mc
= el
->data
;
823 if (mc
->is_default
) {
824 assert(default_machineclass
== NULL
&& "Multiple default machines");
825 default_machineclass
= mc
;
829 return default_machineclass
;
832 static void version(void)
834 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
835 QEMU_COPYRIGHT
"\n");
838 static void help(int exitcode
)
841 printf("usage: %s [options] [disk_image]\n\n"
842 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
845 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
846 if ((arch_mask) & arch_type) \
847 fputs(opt_help, stdout);
849 #define ARCHHEADING(text, arch_mask) \
850 if ((arch_mask) & arch_type) \
851 puts(stringify(text));
853 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
855 #include "qemu-options.def"
857 printf("\nDuring emulation, the following keys are useful:\n"
858 "ctrl-alt-f toggle full screen\n"
859 "ctrl-alt-n switch to virtual console 'n'\n"
860 "ctrl-alt toggle mouse and keyboard grab\n"
862 "When using -nographic, press 'ctrl-a h' to get some help.\n"
864 QEMU_HELP_BOTTOM
"\n");
869 #define HAS_ARG 0x0001
871 typedef struct QEMUOption
{
878 static const QEMUOption qemu_options
[] = {
879 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
881 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
882 { option, opt_arg, opt_enum, arch_mask },
883 #define DEFHEADING(text)
884 #define ARCHHEADING(text, arch_mask)
886 #include "qemu-options.def"
890 typedef struct VGAInterfaceInfo
{
891 const char *opt_name
; /* option name */
892 const char *name
; /* human-readable name */
893 /* Class names indicating that support is available.
894 * If no class is specified, the interface is always available */
895 const char *class_names
[2];
898 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
901 .name
= "no graphic card",
905 .name
= "standard VGA",
906 .class_names
= { "VGA", "isa-vga" },
909 .opt_name
= "cirrus",
910 .name
= "Cirrus VGA",
911 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
914 .opt_name
= "vmware",
915 .name
= "VMWare SVGA",
916 .class_names
= { "vmware-svga" },
919 .opt_name
= "virtio",
920 .name
= "Virtio VGA",
921 .class_names
= { "virtio-vga" },
926 .class_names
= { "qxl-vga" },
930 .name
= "TCX framebuffer",
931 .class_names
= { "sun-tcx" },
935 .name
= "CG3 framebuffer",
936 .class_names
= { "cgthree" },
938 #ifdef CONFIG_XEN_BACKEND
941 .name
= "Xen paravirtualized framebuffer",
946 static bool vga_interface_available(VGAInterfaceType t
)
948 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
950 assert(t
< VGA_TYPE_MAX
);
951 return !ti
->class_names
[0] ||
952 module_object_class_by_name(ti
->class_names
[0]) ||
953 module_object_class_by_name(ti
->class_names
[1]);
957 get_default_vga_model(const MachineClass
*machine_class
)
959 if (machine_class
->default_display
) {
960 return machine_class
->default_display
;
961 } else if (vga_interface_available(VGA_CIRRUS
)) {
963 } else if (vga_interface_available(VGA_STD
)) {
970 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
975 if (g_str_equal(p
, "help")) {
976 const char *def
= get_default_vga_model(machine_class
);
978 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
979 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
981 if (vga_interface_available(t
) && ti
->opt_name
) {
982 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
983 (def
&& g_str_equal(ti
->opt_name
, def
)) ?
990 assert(vga_interface_type
== VGA_NONE
);
991 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
992 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
993 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
994 if (!vga_interface_available(t
)) {
995 error_report("%s not available", ti
->name
);
998 vga_interface_type
= t
;
1002 if (t
== VGA_TYPE_MAX
) {
1004 error_report("unknown vga type: %s", p
);
1008 const char *nextopt
;
1010 if (strstart(opts
, ",retrace=", &nextopt
)) {
1012 if (strstart(opts
, "dumb", &nextopt
))
1013 vga_retrace_method
= VGA_RETRACE_DUMB
;
1014 else if (strstart(opts
, "precise", &nextopt
))
1015 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1016 else goto invalid_vga
;
1017 } else goto invalid_vga
;
1022 static void parse_display_qapi(const char *optarg
)
1024 DisplayOptions
*opts
;
1027 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1029 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1030 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1032 qapi_free_DisplayOptions(opts
);
1036 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1038 return QAPI_CLONE(DisplayOptions
, &dpy
);
1041 static void parse_display(const char *p
)
1045 if (is_help_option(p
)) {
1046 qemu_display_help();
1050 if (strstart(p
, "vnc", &opts
)) {
1052 * vnc isn't a (local) DisplayType but a protocol for remote
1056 vnc_parse(opts
+ 1);
1058 error_report("VNC requires a display argument vnc=<display>");
1062 parse_display_qapi(p
);
1066 static inline bool nonempty_str(const char *str
)
1071 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1075 const char *name
, *file
, *str
, *gen_id
;
1076 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1078 if (fw_cfg
== NULL
) {
1079 error_setg(errp
, "fw_cfg device not available");
1082 name
= qemu_opt_get(opts
, "name");
1083 file
= qemu_opt_get(opts
, "file");
1084 str
= qemu_opt_get(opts
, "string");
1085 gen_id
= qemu_opt_get(opts
, "gen_id");
1087 /* we need the name, and exactly one of: file, content string, gen_id */
1088 if (!nonempty_str(name
) ||
1089 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1090 error_setg(errp
, "name, plus exactly one of file,"
1091 " string and gen_id, are needed");
1094 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1095 error_setg(errp
, "name too long (max. %d char)",
1096 FW_CFG_MAX_FILE_PATH
- 1);
1099 if (nonempty_str(gen_id
)) {
1101 * In this particular case where the content is populated
1102 * internally, the "etc/" namespace protection is relaxed,
1103 * so do not emit a warning.
1105 } else if (strncmp(name
, "opt/", 4) != 0) {
1106 warn_report("externally provided fw_cfg item names "
1107 "should be prefixed with \"opt/\"");
1109 if (nonempty_str(str
)) {
1110 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1111 buf
= g_memdup(str
, size
);
1112 } else if (nonempty_str(gen_id
)) {
1113 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1119 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1120 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1125 /* For legacy, keep user files in a specific global order. */
1126 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1127 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1128 fw_cfg_reset_order_override(fw_cfg
);
1132 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1134 return qdev_device_help(opts
);
1137 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1141 dev
= qdev_device_add(opts
, errp
);
1142 if (!dev
&& *errp
) {
1143 error_report_err(*errp
);
1146 object_unref(OBJECT(dev
));
1151 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1153 Error
*local_err
= NULL
;
1155 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1157 error_propagate(errp
, local_err
);
1165 #ifdef CONFIG_VIRTFS
1166 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1168 return qemu_fsdev_add(opts
, errp
);
1172 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1174 return monitor_init_opts(opts
, errp
);
1177 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
1179 static int monitor_device_index
= 0;
1184 if (strstart(optarg
, "chardev:", &p
)) {
1185 snprintf(label
, sizeof(label
), "%s", p
);
1187 snprintf(label
, sizeof(label
), "compat_monitor%d",
1188 monitor_device_index
);
1189 opts
= qemu_chr_parse_compat(label
, optarg
, true);
1191 error_report("parse error: %s", optarg
);
1196 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1197 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1198 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1199 if (!strcmp(mode
, "control")) {
1200 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1202 assert(pretty
== false);
1204 monitor_device_index
++;
1207 struct device_config
{
1209 DEV_USB
, /* -usbdevice */
1210 DEV_SERIAL
, /* -serial */
1211 DEV_PARALLEL
, /* -parallel */
1212 DEV_DEBUGCON
, /* -debugcon */
1213 DEV_GDB
, /* -gdb, -s */
1214 DEV_SCLP
, /* s390 sclp */
1216 const char *cmdline
;
1218 QTAILQ_ENTRY(device_config
) next
;
1221 static QTAILQ_HEAD(, device_config
) device_configs
=
1222 QTAILQ_HEAD_INITIALIZER(device_configs
);
1224 static void add_device_config(int type
, const char *cmdline
)
1226 struct device_config
*conf
;
1228 conf
= g_malloc0(sizeof(*conf
));
1230 conf
->cmdline
= cmdline
;
1231 loc_save(&conf
->loc
);
1232 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1235 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1237 struct device_config
*conf
;
1240 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1241 if (conf
->type
!= type
)
1243 loc_push_restore(&conf
->loc
);
1244 rc
= func(conf
->cmdline
);
1245 loc_pop(&conf
->loc
);
1253 static void qemu_disable_default_devices(void)
1255 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1257 default_driver_check_json();
1258 qemu_opts_foreach(qemu_find_opts("device"),
1259 default_driver_check
, NULL
, NULL
);
1260 qemu_opts_foreach(qemu_find_opts("global"),
1261 default_driver_check
, NULL
, NULL
);
1263 if (!vga_model
&& !default_vga
) {
1264 vga_interface_type
= VGA_DEVICE
;
1265 vga_interface_created
= true;
1267 if (!has_defaults
|| machine_class
->no_serial
) {
1270 if (!has_defaults
|| machine_class
->no_parallel
) {
1271 default_parallel
= 0;
1273 if (!has_defaults
|| machine_class
->no_floppy
) {
1276 if (!has_defaults
|| machine_class
->no_cdrom
) {
1279 if (!has_defaults
|| machine_class
->no_sdcard
) {
1282 if (!has_defaults
) {
1283 default_monitor
= 0;
1289 static void qemu_create_default_devices(void)
1291 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1293 if (is_daemonized()) {
1294 /* According to documentation and historically, -nographic redirects
1295 * serial port, parallel port and monitor to stdio, which does not work
1296 * with -daemonize. We can redirect these to null instead, but since
1297 * -nographic is legacy, let's just error out.
1298 * We disallow -nographic only if all other ports are not redirected
1299 * explicitly, to not break existing legacy setups which uses
1300 * -nographic _and_ redirects all ports explicitly - this is valid
1301 * usage, -nographic is just a no-op in this case.
1304 && (default_parallel
|| default_serial
|| default_monitor
)) {
1305 error_report("-nographic cannot be used with -daemonize");
1311 if (default_parallel
)
1312 add_device_config(DEV_PARALLEL
, "null");
1313 if (default_serial
&& default_monitor
) {
1314 add_device_config(DEV_SERIAL
, "mon:stdio");
1317 add_device_config(DEV_SERIAL
, "stdio");
1318 if (default_monitor
)
1319 monitor_parse("stdio", "readline", false);
1323 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
1324 if (default_parallel
)
1325 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
1326 if (default_monitor
)
1327 monitor_parse("vc:80Cx24C", "readline", false);
1331 QemuOptsList
*net
= qemu_find_opts("net");
1332 qemu_opts_parse(net
, "nic", true, &error_abort
);
1334 qemu_opts_parse(net
, "user", true, &error_abort
);
1338 #if defined(CONFIG_VNC)
1339 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
1343 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1344 if (!qemu_display_find_default(&dpy
)) {
1345 dpy
.type
= DISPLAY_TYPE_NONE
;
1346 #if defined(CONFIG_VNC)
1347 vnc_parse("localhost:0,to=99,id=default");
1351 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1352 dpy
.type
= DISPLAY_TYPE_NONE
;
1355 /* If no default VGA is requested, the default is "none". */
1357 vga_model
= get_default_vga_model(machine_class
);
1360 select_vgahw(machine_class
, vga_model
);
1364 static int serial_parse(const char *devname
)
1366 int index
= num_serial_hds
;
1369 if (strcmp(devname
, "none") == 0)
1371 snprintf(label
, sizeof(label
), "serial%d", index
);
1372 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1374 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1375 if (!serial_hds
[index
]) {
1376 error_report("could not connect serial device"
1377 " to character backend '%s'", devname
);
1384 Chardev
*serial_hd(int i
)
1387 if (i
< num_serial_hds
) {
1388 return serial_hds
[i
];
1393 static int parallel_parse(const char *devname
)
1395 static int index
= 0;
1398 if (strcmp(devname
, "none") == 0)
1400 if (index
== MAX_PARALLEL_PORTS
) {
1401 error_report("too many parallel ports");
1404 snprintf(label
, sizeof(label
), "parallel%d", index
);
1405 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1406 if (!parallel_hds
[index
]) {
1407 error_report("could not connect parallel device"
1408 " to character backend '%s'", devname
);
1415 static int debugcon_parse(const char *devname
)
1419 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1420 error_report("invalid character backend '%s'", devname
);
1423 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1425 error_report("already have a debugcon device");
1428 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1429 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1433 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1435 const MachineClass
*mc1
= a
, *mc2
= b
;
1438 if (mc1
->family
== NULL
) {
1439 if (mc2
->family
== NULL
) {
1440 /* Compare standalone machine types against each other; they sort
1441 * in increasing order.
1443 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1444 object_class_get_name(OBJECT_CLASS(mc2
)));
1447 /* Standalone machine types sort after families. */
1451 if (mc2
->family
== NULL
) {
1452 /* Families sort before standalone machine types. */
1456 /* Families sort between each other alphabetically increasingly. */
1457 res
= strcmp(mc1
->family
, mc2
->family
);
1462 /* Within the same family, machine types sort in decreasing order. */
1463 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1464 object_class_get_name(OBJECT_CLASS(mc1
)));
1467 static void machine_help_func(const QDict
*qdict
)
1469 GSList
*machines
, *el
;
1470 const char *type
= qdict_get_try_str(qdict
, "type");
1472 machines
= object_class_get_list(TYPE_MACHINE
, false);
1474 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1475 if (machine_class
) {
1476 type_print_class_properties(object_class_get_name(machine_class
));
1481 printf("Supported machines are:\n");
1482 machines
= g_slist_sort(machines
, machine_class_cmp
);
1483 for (el
= machines
; el
; el
= el
->next
) {
1484 MachineClass
*mc
= el
->data
;
1486 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1488 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1489 mc
->is_default
? " (default)" : "",
1490 mc
->deprecation_reason
? " (deprecated)" : "");
1495 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1500 /* Preserve the caller's reference to prop. */
1502 qdict_put(opts
, propname
, prop
);
1503 keyval_merge(machine_opts_dict
, opts
, errp
);
1504 qobject_unref(opts
);
1508 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1514 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1516 qemu_opts_print_help(opts_list
, true);
1519 machine_merge_property(propname
, prop
, &error_fatal
);
1520 qobject_unref(prop
);
1523 static const char *pid_file
;
1524 struct UnlinkPidfileNotifier
{
1526 char *pid_file_realpath
;
1528 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier
;
1530 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1532 struct UnlinkPidfileNotifier
*upn
;
1534 upn
= DO_UPCAST(struct UnlinkPidfileNotifier
, notifier
, n
);
1535 unlink(upn
->pid_file_realpath
);
1538 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1539 const char **poptarg
, int *poptind
)
1541 const QEMUOption
*popt
;
1542 int optind
= *poptind
;
1543 char *r
= argv
[optind
];
1546 loc_set_cmdline(argv
, optind
, 1);
1548 /* Treat --foo the same as -foo. */
1551 popt
= qemu_options
;
1554 error_report("invalid option");
1557 if (!strcmp(popt
->name
, r
+ 1))
1561 if (popt
->flags
& HAS_ARG
) {
1562 if (optind
>= argc
) {
1563 error_report("requires an argument");
1566 optarg
= argv
[optind
++];
1567 loc_set_cmdline(argv
, optind
- 2, 2);
1578 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1580 const char *optarg
= qdict_get_try_str(qdict
, "type");
1581 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1582 MachineClass
*machine_class
;
1583 Error
*local_err
= NULL
;
1586 machine_class
= find_machine(optarg
, machines
);
1587 qdict_del(qdict
, "type");
1588 if (!machine_class
) {
1589 error_setg(&local_err
, "unsupported machine type");
1592 machine_class
= find_default_machine(machines
);
1593 if (!machine_class
) {
1594 error_setg(&local_err
, "No machine specified, and there is no default");
1598 g_slist_free(machines
);
1600 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1601 error_propagate(errp
, local_err
);
1603 return machine_class
;
1606 static int object_parse_property_opt(Object
*obj
,
1607 const char *name
, const char *value
,
1608 const char *skip
, Error
**errp
)
1610 if (g_str_equal(name
, skip
)) {
1614 if (!object_property_parse(obj
, name
, value
, errp
)) {
1621 /* *Non*recursively replace underscores with dashes in QDict keys. */
1622 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1624 const QDictEntry
*ent
, *next
;
1627 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1628 g_autofree
char *new_key
= NULL
;
1630 next
= qdict_next(qdict
, ent
);
1631 if (!strchr(ent
->key
, '_')) {
1634 new_key
= g_strdup(ent
->key
);
1635 for (p
= new_key
; *p
; p
++) {
1640 if (qdict_haskey(qdict
, new_key
)) {
1641 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1644 qobject_ref(ent
->value
);
1645 qdict_put_obj(qdict
, new_key
, ent
->value
);
1646 qdict_del(qdict
, ent
->key
);
1650 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1655 keyval_dashify(qdict
, &error_fatal
);
1657 /* Legacy options do not correspond to MachineState properties. */
1658 value
= qdict_get_try_str(qdict
, "accel");
1660 accelerators
= g_strdup(value
);
1661 qdict_del(qdict
, "accel");
1664 value
= qdict_get_try_str(qdict
, "igd-passthru");
1666 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1668 qdict_del(qdict
, "igd-passthru");
1671 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1673 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1675 qdict_del(qdict
, "kvm-shadow-mem");
1678 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1680 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1682 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1684 qdict_del(qdict
, "kernel-irqchip");
1687 value
= qdict_get_try_str(qdict
, "memory-backend");
1690 error_report("'-mem-path' can't be used together with"
1691 "'-machine memory-backend'");
1695 /* Resolved later. */
1696 ram_memdev_id
= g_strdup(value
);
1697 qdict_del(qdict
, "memory-backend");
1700 prop
= qdict_get(qdict
, "memory");
1702 have_custom_ram_size
=
1703 qobject_type(prop
) == QTYPE_QDICT
&&
1704 qdict_haskey(qobject_to(QDict
, prop
), "size");
1708 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1710 ObjectOption
*opt
, *next
;
1712 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1713 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1714 if (type_opt_predicate(type
)) {
1715 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1716 qapi_free_ObjectOptions(opt
->opts
);
1717 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1723 static void object_option_add_visitor(Visitor
*v
)
1725 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1726 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1727 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1730 static void object_option_parse(const char *optarg
)
1736 if (optarg
[0] == '{') {
1737 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
1739 v
= qobject_input_visitor_new(obj
);
1742 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1748 type
= qemu_opt_get(opts
, "qom-type");
1750 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1752 if (user_creatable_print_help(type
, opts
)) {
1756 v
= opts_visitor_new(opts
);
1759 object_option_add_visitor(v
);
1764 * Very early object creation, before the sandbox options have been activated.
1766 static bool object_create_pre_sandbox(const char *type
)
1769 * Objects should in general not get initialized "too early" without
1770 * a reason. If you add one, state the reason in a comment!
1774 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1775 * affinity of threads.
1777 if (g_str_equal(type
, "thread-context")) {
1785 * Initial object creation happens before all other
1786 * QEMU data types are created. The majority of objects
1787 * can be created at this point. The rng-egd object
1788 * cannot be created here, as it depends on the chardev
1791 static bool object_create_early(const char *type
)
1794 * Objects should not be made "delayed" without a reason. If you
1795 * add one, state the reason in a comment!
1798 /* Reason: already created. */
1799 if (object_create_pre_sandbox(type
)) {
1803 /* Reason: property "chardev" */
1804 if (g_str_equal(type
, "rng-egd") ||
1805 g_str_equal(type
, "qtest")) {
1809 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1810 /* Reason: cryptodev-vhost-user property "chardev" */
1811 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1816 /* Reason: vhost-user-blk-server property "node-name" */
1817 if (g_str_equal(type
, "vhost-user-blk-server")) {
1821 * Reason: filter-* property "netdev" etc.
1823 if (g_str_equal(type
, "filter-buffer") ||
1824 g_str_equal(type
, "filter-dump") ||
1825 g_str_equal(type
, "filter-mirror") ||
1826 g_str_equal(type
, "filter-redirector") ||
1827 g_str_equal(type
, "colo-compare") ||
1828 g_str_equal(type
, "filter-rewriter") ||
1829 g_str_equal(type
, "filter-replay")) {
1834 * Allocation of large amounts of memory may delay
1835 * chardev initialization for too long, and trigger timeouts
1836 * on software that waits for a monitor socket to be created
1839 if (g_str_has_prefix(type
, "memory-backend-")) {
1846 static void qemu_apply_machine_options(QDict
*qdict
)
1848 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1850 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1851 /* fall back to the -kernel/-append */
1852 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1855 if (current_machine
->smp
.cpus
> 1) {
1856 Error
*blocker
= NULL
;
1857 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
1858 replay_add_blocker(blocker
);
1862 static void qemu_create_early_backends(void)
1864 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1865 #if defined(CONFIG_SDL)
1866 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1868 const bool use_sdl
= false;
1870 #if defined(CONFIG_GTK)
1871 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1873 const bool use_gtk
= false;
1876 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1877 error_report("window-close is only valid for GTK and SDL, "
1881 qemu_display_early_init(&dpy
);
1882 qemu_console_early_init();
1884 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1885 #if defined(CONFIG_OPENGL)
1886 error_report("OpenGL is not supported by the display");
1888 error_report("OpenGL support is disabled");
1893 object_option_foreach_add(object_create_early
);
1895 /* spice needs the timers to be initialized by this point */
1896 /* spice must initialize before audio as it changes the default audiodev */
1897 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1900 qemu_opts_foreach(qemu_find_opts("chardev"),
1901 chardev_init_func
, NULL
, &error_fatal
);
1903 #ifdef CONFIG_VIRTFS
1904 qemu_opts_foreach(qemu_find_opts("fsdev"),
1905 fsdev_init_func
, NULL
, &error_fatal
);
1909 * Note: we need to create audio and block backends before
1910 * setting machine properties, so they can be referred to.
1912 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1913 if (!audio_init_audiodevs()) {
1920 * The remainder of object creation happens after the
1921 * creation of chardev, fsdev, net clients and device data types.
1923 static bool object_create_late(const char *type
)
1925 return !object_create_early(type
) && !object_create_pre_sandbox(type
);
1928 static void qemu_create_late_backends(void)
1931 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
1936 object_option_foreach_add(object_create_late
);
1938 if (tpm_init() < 0) {
1942 qemu_opts_foreach(qemu_find_opts("mon"),
1943 mon_init_func
, NULL
, &error_fatal
);
1945 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
1947 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
1949 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
1952 /* now chardevs have been created we may have semihosting to connect */
1953 qemu_semihosting_chardev_init();
1956 static void qemu_resolve_machine_memdev(void)
1958 if (ram_memdev_id
) {
1960 ram_addr_t backend_size
;
1962 backend
= object_resolve_path_type(ram_memdev_id
,
1963 TYPE_MEMORY_BACKEND
, NULL
);
1965 error_report("Memory backend '%s' not found", ram_memdev_id
);
1968 if (!have_custom_ram_size
) {
1969 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
1970 current_machine
->ram_size
= backend_size
;
1972 object_property_set_link(OBJECT(current_machine
),
1973 "memory-backend", backend
, &error_fatal
);
1977 static void parse_memory_options(void)
1979 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
1981 const char *mem_str
;
1984 loc_push_none(&loc
);
1985 qemu_opts_loc_restore(opts
);
1989 if (qemu_opt_get_size(opts
, "size", 0) != 0) {
1990 /* Fix up legacy suffix-less format */
1991 mem_str
= qemu_opt_get(opts
, "size");
1992 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
1993 g_autofree
char *mib_str
= g_strdup_printf("%sM", mem_str
);
1994 qdict_put_str(prop
, "size", mib_str
);
1996 qdict_put_str(prop
, "size", mem_str
);
2000 if (qemu_opt_get(opts
, "maxmem")) {
2001 qdict_put_str(prop
, "max-size", qemu_opt_get(opts
, "maxmem"));
2003 if (qemu_opt_get(opts
, "slots")) {
2004 qdict_put_str(prop
, "slots", qemu_opt_get(opts
, "slots"));
2008 qdict_put(dict
, "memory", prop
);
2009 keyval_merge(machine_opts_dict
, dict
, &error_fatal
);
2010 qobject_unref(dict
);
2014 static void qemu_create_machine(QDict
*qdict
)
2016 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2017 object_set_machine_compat_props(machine_class
->compat_props
);
2019 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2020 object_property_add_child(object_get_root(), "machine",
2021 OBJECT(current_machine
));
2022 object_property_add_child(container_get(OBJECT(current_machine
),
2024 "sysbus", OBJECT(sysbus_get_default()));
2026 if (machine_class
->minimum_page_bits
) {
2027 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2028 /* This would be a board error: specifying a minimum smaller than
2029 * a target's compile-time fixed setting.
2031 g_assert_not_reached();
2035 cpu_exec_init_all();
2038 if (machine_class
->hw_version
) {
2039 qemu_set_hw_version(machine_class
->hw_version
);
2043 * Get the default machine options from the machine if it is not already
2044 * specified either by the configuration file or by the command line.
2046 if (machine_class
->default_machine_opts
) {
2047 QDict
*default_opts
=
2048 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2050 qemu_apply_legacy_machine_options(default_opts
);
2051 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2052 false, &error_abort
);
2053 qobject_unref(default_opts
);
2057 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2061 g
= g_malloc0(sizeof(*g
));
2062 g
->driver
= qemu_opt_get(opts
, "driver");
2063 g
->property
= qemu_opt_get(opts
, "property");
2064 g
->value
= qemu_opt_get(opts
, "value");
2065 qdev_prop_register_global(g
);
2070 * Return whether configuration group @group is stored in QemuOpts, or
2071 * recorded as one or more QDicts by qemu_record_config_group.
2073 static bool is_qemuopts_group(const char *group
)
2075 if (g_str_equal(group
, "object") ||
2076 g_str_equal(group
, "machine") ||
2077 g_str_equal(group
, "smp-opts") ||
2078 g_str_equal(group
, "boot-opts")) {
2084 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2085 bool from_json
, Error
**errp
)
2087 if (g_str_equal(group
, "object")) {
2088 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2089 object_option_add_visitor(v
);
2091 } else if (g_str_equal(group
, "machine")) {
2093 * Cannot merge string-valued and type-safe dictionaries, so JSON
2094 * is not accepted yet for -M.
2097 keyval_merge(machine_opts_dict
, dict
, errp
);
2098 } else if (g_str_equal(group
, "smp-opts")) {
2099 machine_merge_property("smp", dict
, &error_fatal
);
2100 } else if (g_str_equal(group
, "boot-opts")) {
2101 machine_merge_property("boot", dict
, &error_fatal
);
2108 * Parse non-QemuOpts config file groups, pass the rest to
2109 * qemu_config_do_parse.
2111 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2112 void *opaque
, Error
**errp
)
2115 if (is_qemuopts_group(group
)) {
2116 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2120 crumpled
= qdict_crumple(qdict
, errp
);
2124 switch (qobject_type(crumpled
)) {
2126 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2129 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2132 g_assert_not_reached();
2134 qobject_unref(crumpled
);
2137 static void qemu_read_default_config_file(Error
**errp
)
2141 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2143 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2145 if (ret
== -ENOENT
) {
2152 static void qemu_set_option(const char *str
, Error
**errp
)
2154 char group
[64], id
[64], arg
[64];
2159 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2160 if (rc
< 3 || str
[offset
] != '=') {
2161 error_setg(errp
, "can't parse: \"%s\"", str
);
2165 if (!is_qemuopts_group(group
)) {
2166 error_setg(errp
, "-set is not supported with %s", group
);
2168 list
= qemu_find_opts_err(group
, errp
);
2170 opts
= qemu_opts_find(list
, id
);
2172 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2175 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2180 static void user_register_global_props(void)
2182 qemu_opts_foreach(qemu_find_opts("global"),
2183 global_init_func
, NULL
, NULL
);
2186 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2188 icount_configure(opts
, errp
);
2192 static int accelerator_set_property(void *opaque
,
2193 const char *name
, const char *value
,
2196 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2199 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2201 bool *p_init_failed
= opaque
;
2202 const char *acc
= qemu_opt_get(opts
, "accel");
2203 AccelClass
*ac
= accel_find(acc
);
2206 bool qtest_with_kvm
;
2208 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2211 *p_init_failed
= true;
2212 if (!qtest_with_kvm
) {
2213 error_report("invalid accelerator %s", acc
);
2217 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2218 object_apply_compat_props(OBJECT(accel
));
2219 qemu_opt_foreach(opts
, accelerator_set_property
,
2223 ret
= accel_init_machine(accel
, current_machine
);
2225 *p_init_failed
= true;
2226 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2227 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2235 static void configure_accelerators(const char *progname
)
2237 bool init_failed
= false;
2239 qemu_opts_foreach(qemu_find_opts("icount"),
2240 do_configure_icount
, NULL
, &error_fatal
);
2242 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2243 char **accel_list
, **tmp
;
2245 if (accelerators
== NULL
) {
2246 /* Select the default accelerator */
2247 bool have_tcg
= accel_find("tcg");
2248 bool have_kvm
= accel_find("kvm");
2250 if (have_tcg
&& have_kvm
) {
2251 if (g_str_has_suffix(progname
, "kvm")) {
2252 /* If the program name ends with "kvm", we prefer KVM */
2253 accelerators
= "kvm:tcg";
2255 accelerators
= "tcg:kvm";
2257 } else if (have_kvm
) {
2258 accelerators
= "kvm";
2259 } else if (have_tcg
) {
2260 accelerators
= "tcg";
2262 error_report("No accelerator selected and"
2263 " no default accelerator available");
2267 accel_list
= g_strsplit(accelerators
, ":", 0);
2269 for (tmp
= accel_list
; *tmp
; tmp
++) {
2271 * Filter invalid accelerators here, to prevent obscenities
2272 * such as "-machine accel=tcg,,thread=single".
2274 if (accel_find(*tmp
)) {
2275 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2278 error_report("invalid accelerator %s", *tmp
);
2281 g_strfreev(accel_list
);
2283 if (accelerators
!= NULL
) {
2284 error_report("The -accel and \"-machine accel=\" options are incompatible");
2289 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2290 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2292 error_report("no accelerator found");
2297 if (init_failed
&& !qtest_chrdev
) {
2298 error_report("falling back to %s", current_accel_name());
2301 if (icount_enabled() && !tcg_enabled()) {
2302 error_report("-icount is not allowed with hardware virtualization");
2307 static void qemu_validate_options(const QDict
*machine_opts
)
2309 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2310 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2311 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2313 if (kernel_filename
== NULL
) {
2314 if (kernel_cmdline
!= NULL
) {
2315 error_report("-append only allowed with -kernel option");
2319 if (initrd_filename
!= NULL
) {
2320 error_report("-initrd only allowed with -kernel option");
2325 if (loadvm
&& preconfig_requested
) {
2326 error_report("'preconfig' and 'loadvm' options are "
2327 "mutually exclusive");
2330 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2331 error_report("'preconfig' supports '-incoming defer' only");
2335 #ifdef CONFIG_CURSES
2336 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2337 error_report("curses display cannot be used with -daemonize");
2343 static void qemu_process_sugar_options(void)
2346 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2347 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2348 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2349 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2350 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2351 object_register_sugar_prop("memory-backend", "prealloc-threads",
2355 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2359 /* -action processing */
2362 * Process all the -action parameters parsed from cmdline.
2364 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2366 Error
*local_err
= NULL
;
2367 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2368 QObject
*ret
= NULL
;
2369 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2371 qobject_unref(qdict
);
2373 error_propagate(errp
, local_err
);
2379 static void qemu_process_early_options(void)
2381 qemu_opts_foreach(qemu_find_opts("name"),
2382 parse_name
, NULL
, &error_fatal
);
2384 object_option_foreach_add(object_create_pre_sandbox
);
2386 #ifdef CONFIG_SECCOMP
2387 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2389 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2393 if (qemu_opts_foreach(qemu_find_opts("action"),
2394 process_runstate_actions
, NULL
, &error_fatal
)) {
2399 qemu_opts_foreach(qemu_find_opts("add-fd"),
2400 parse_add_fd
, NULL
, &error_fatal
);
2402 qemu_opts_foreach(qemu_find_opts("add-fd"),
2403 cleanup_add_fd
, NULL
, &error_fatal
);
2406 /* Open the logfile at this point and set the log mask if necessary. */
2410 mask
= qemu_str_to_log_mask(log_mask
);
2412 qemu_print_log_usage(stdout
);
2416 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2419 qemu_add_default_firmwarepath();
2422 static void qemu_process_help_options(void)
2425 * Check for -cpu help and -device help before we call select_machine(),
2426 * which will return an error if the architecture has no default machine
2427 * type and the user did not specify one, so that the user doesn't need
2428 * to say '-cpu help -machine something'.
2430 if (cpu_option
&& is_help_option(cpu_option
)) {
2431 list_cpus(cpu_option
);
2435 if (qemu_opts_foreach(qemu_find_opts("device"),
2436 device_help_func
, NULL
, NULL
)) {
2440 /* -L help lists the data directories and exits. */
2441 if (list_data_dirs
) {
2442 qemu_list_data_dirs();
2447 static void qemu_maybe_daemonize(const char *pid_file
)
2452 rcu_disable_atfork();
2455 char *pid_file_realpath
= NULL
;
2457 if (!qemu_write_pidfile(pid_file
, &err
)) {
2458 error_reportf_err(err
, "cannot create PID file: ");
2462 pid_file_realpath
= g_malloc0(PATH_MAX
);
2463 if (!realpath(pid_file
, pid_file_realpath
)) {
2464 error_report("cannot resolve PID file path: %s: %s",
2465 pid_file
, strerror(errno
));
2470 qemu_unlink_pidfile_notifier
= (struct UnlinkPidfileNotifier
) {
2472 .notify
= qemu_unlink_pidfile
,
2474 .pid_file_realpath
= pid_file_realpath
,
2476 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
.notifier
);
2480 static void qemu_init_displays(void)
2484 /* init local displays */
2485 ds
= init_displaystate();
2486 qemu_display_init(ds
, &dpy
);
2488 /* must be after terminal init, SDL library changes signal handlers */
2489 os_setup_signal_handling();
2491 /* init remote displays */
2493 qemu_opts_foreach(qemu_find_opts("vnc"),
2494 vnc_init_func
, NULL
, &error_fatal
);
2498 qemu_spice
.display_init();
2502 static void qemu_init_board(void)
2504 /* process plugin before CPUs are created, but once -smp has been parsed */
2505 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2507 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2508 machine_run_board_init(current_machine
, mem_path
, &error_fatal
);
2510 drive_check_orphaned();
2514 if (hax_enabled()) {
2515 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2520 static void qemu_create_cli_devices(void)
2526 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2527 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2529 /* init USB devices */
2530 if (machine_usb(current_machine
)) {
2531 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2535 /* init generic devices */
2536 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2537 qemu_opts_foreach(qemu_find_opts("device"),
2538 device_init_func
, NULL
, &error_fatal
);
2539 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2541 loc_push_restore(&opt
->loc
);
2543 * TODO Eventually we should call qmp_device_add() here to make sure it
2544 * behaves the same, but QMP still has to accept incorrectly typed
2545 * options until libvirt is fixed and we want to be strict on the CLI
2546 * from the start, so call qdev_device_add_from_qdict() directly for
2549 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2550 object_unref(OBJECT(dev
));
2553 rom_reset_order_override();
2556 static void qemu_machine_creation_done(void)
2558 MachineState
*machine
= MACHINE(qdev_get_machine());
2560 /* Did we create any drives that we failed to create a device for? */
2561 drive_check_orphaned();
2563 /* Don't warn about the default network setup that you get if
2564 * no command line -net or -netdev options are specified. There
2565 * are two cases that we would otherwise complain about:
2566 * (1) board doesn't support a NIC but the implicit "-net nic"
2568 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2569 * sets up a nic that isn't connected to anything.
2571 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2572 net_check_clients();
2575 qdev_prop_check_globals();
2577 qdev_machine_creation_done();
2581 * Verify that Confidential Guest Support has actually been initialized
2583 assert(machine
->cgs
->ready
);
2586 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2589 if (!vga_interface_created
&& !default_vga
&&
2590 vga_interface_type
!= VGA_NONE
) {
2591 warn_report("A -vga option was passed but this machine "
2592 "type does not use that option; "
2593 "No VGA device has been created");
2597 void qmp_x_exit_preconfig(Error
**errp
)
2599 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2600 error_setg(errp
, "The command is permitted only before machine initialization");
2605 qemu_create_cli_devices();
2606 qemu_machine_creation_done();
2609 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2611 if (replay_mode
!= REPLAY_MODE_NONE
) {
2612 replay_vmstate_init();
2616 Error
*local_err
= NULL
;
2617 if (strcmp(incoming
, "defer") != 0) {
2618 qmp_migrate_incoming(incoming
, &local_err
);
2620 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2624 } else if (autostart
) {
2629 void qemu_init(int argc
, char **argv
)
2632 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2633 QemuOptsList
*olist
;
2636 MachineClass
*machine_class
;
2637 bool userconfig
= true;
2638 FILE *vmstate_dump_file
= NULL
;
2640 qemu_add_opts(&qemu_drive_opts
);
2641 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2642 qemu_add_drive_opts(&qemu_common_drive_opts
);
2643 qemu_add_drive_opts(&qemu_drive_opts
);
2644 qemu_add_drive_opts(&bdrv_runtime_opts
);
2645 qemu_add_opts(&qemu_chardev_opts
);
2646 qemu_add_opts(&qemu_device_opts
);
2647 qemu_add_opts(&qemu_netdev_opts
);
2648 qemu_add_opts(&qemu_nic_opts
);
2649 qemu_add_opts(&qemu_net_opts
);
2650 qemu_add_opts(&qemu_rtc_opts
);
2651 qemu_add_opts(&qemu_global_opts
);
2652 qemu_add_opts(&qemu_mon_opts
);
2653 qemu_add_opts(&qemu_trace_opts
);
2654 qemu_plugin_add_opts();
2655 qemu_add_opts(&qemu_option_rom_opts
);
2656 qemu_add_opts(&qemu_accel_opts
);
2657 qemu_add_opts(&qemu_mem_opts
);
2658 qemu_add_opts(&qemu_smp_opts
);
2659 qemu_add_opts(&qemu_boot_opts
);
2660 qemu_add_opts(&qemu_add_fd_opts
);
2661 qemu_add_opts(&qemu_object_opts
);
2662 qemu_add_opts(&qemu_tpmdev_opts
);
2663 qemu_add_opts(&qemu_overcommit_opts
);
2664 qemu_add_opts(&qemu_msg_opts
);
2665 qemu_add_opts(&qemu_name_opts
);
2666 qemu_add_opts(&qemu_numa_opts
);
2667 qemu_add_opts(&qemu_icount_opts
);
2668 qemu_add_opts(&qemu_semihosting_config_opts
);
2669 qemu_add_opts(&qemu_fw_cfg_opts
);
2670 qemu_add_opts(&qemu_action_opts
);
2671 module_call_init(MODULE_INIT_OPTS
);
2673 error_init(argv
[0]);
2674 qemu_init_exec_dir(argv
[0]);
2676 qemu_init_arch_modules();
2678 qemu_init_subsystems();
2680 /* first pass of option parsing */
2682 while (optind
< argc
) {
2683 if (argv
[optind
][0] != '-') {
2687 const QEMUOption
*popt
;
2689 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2690 switch (popt
->index
) {
2691 case QEMU_OPTION_nouserconfig
:
2698 machine_opts_dict
= qdict_new();
2700 qemu_read_default_config_file(&error_fatal
);
2703 /* second pass of option parsing */
2708 if (argv
[optind
][0] != '-') {
2709 loc_set_cmdline(argv
, optind
, 1);
2710 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2712 const QEMUOption
*popt
;
2714 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2715 if (!(popt
->arch_mask
& arch_type
)) {
2716 error_report("Option not supported for this target");
2719 switch(popt
->index
) {
2720 case QEMU_OPTION_cpu
:
2721 /* hw initialization will check this */
2722 cpu_option
= optarg
;
2724 case QEMU_OPTION_hda
:
2725 case QEMU_OPTION_hdb
:
2726 case QEMU_OPTION_hdc
:
2727 case QEMU_OPTION_hdd
:
2728 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2731 case QEMU_OPTION_blockdev
:
2734 BlockdevOptionsQueueEntry
*bdo
;
2736 v
= qobject_input_visitor_new_str(optarg
, "driver",
2739 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2740 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2743 loc_save(&bdo
->loc
);
2744 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2747 case QEMU_OPTION_drive
:
2748 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2754 case QEMU_OPTION_set
:
2755 qemu_set_option(optarg
, &error_fatal
);
2757 case QEMU_OPTION_global
:
2758 if (qemu_global_option(optarg
) != 0)
2761 case QEMU_OPTION_mtdblock
:
2762 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2764 case QEMU_OPTION_sd
:
2765 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2767 case QEMU_OPTION_pflash
:
2768 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2770 case QEMU_OPTION_snapshot
:
2772 Error
*blocker
= NULL
;
2774 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
2776 replay_add_blocker(blocker
);
2779 case QEMU_OPTION_numa
:
2780 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2786 case QEMU_OPTION_display
:
2787 parse_display(optarg
);
2789 case QEMU_OPTION_nographic
:
2790 qdict_put_str(machine_opts_dict
, "graphics", "off");
2792 dpy
.type
= DISPLAY_TYPE_NONE
;
2794 case QEMU_OPTION_portrait
:
2795 graphic_rotate
= 90;
2797 case QEMU_OPTION_rotate
:
2798 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2799 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2800 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2801 error_report("only 90, 180, 270 deg rotation is available");
2805 case QEMU_OPTION_kernel
:
2806 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2808 case QEMU_OPTION_initrd
:
2809 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2811 case QEMU_OPTION_append
:
2812 qdict_put_str(machine_opts_dict
, "append", optarg
);
2814 case QEMU_OPTION_dtb
:
2815 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2817 case QEMU_OPTION_cdrom
:
2818 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2820 case QEMU_OPTION_boot
:
2821 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2823 case QEMU_OPTION_fda
:
2824 case QEMU_OPTION_fdb
:
2825 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2828 case QEMU_OPTION_no_fd_bootchk
:
2831 case QEMU_OPTION_netdev
:
2833 if (netdev_is_modern(optarg
)) {
2834 netdev_parse_modern(optarg
);
2836 net_client_parse(qemu_find_opts("netdev"), optarg
);
2839 case QEMU_OPTION_nic
:
2841 net_client_parse(qemu_find_opts("nic"), optarg
);
2843 case QEMU_OPTION_net
:
2845 net_client_parse(qemu_find_opts("net"), optarg
);
2847 #ifdef CONFIG_LIBISCSI
2848 case QEMU_OPTION_iscsi
:
2849 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2856 case QEMU_OPTION_audio_help
:
2857 audio_legacy_help();
2860 case QEMU_OPTION_audiodev
:
2861 audio_parse_option(optarg
);
2863 case QEMU_OPTION_audio
: {
2866 Audiodev
*dev
= NULL
;
2868 QDict
*dict
= keyval_parse(optarg
, "driver", &help
, &error_fatal
);
2869 if (help
|| (qdict_haskey(dict
, "driver") &&
2870 is_help_option(qdict_get_str(dict
, "driver")))) {
2874 if (!qdict_haskey(dict
, "id")) {
2875 qdict_put_str(dict
, "id", "audiodev0");
2877 if (!qdict_haskey(dict
, "model")) {
2878 error_setg(&error_fatal
, "Parameter 'model' is missing");
2880 model
= g_strdup(qdict_get_str(dict
, "model"));
2881 qdict_del(dict
, "model");
2882 if (is_help_option(model
)) {
2883 show_valid_soundhw();
2886 v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2887 qobject_unref(dict
);
2888 visit_type_Audiodev(v
, NULL
, &dev
, &error_fatal
);
2891 select_soundhw(model
, dev
->id
);
2898 case QEMU_OPTION_version
:
2903 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg
, true);
2909 case QEMU_OPTION_tpmdev
:
2910 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
2915 case QEMU_OPTION_mempath
:
2918 case QEMU_OPTION_mem_prealloc
:
2927 case QEMU_OPTION_DFILTER
:
2928 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
2930 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
2931 case QEMU_OPTION_perfmap
:
2932 perf_enable_perfmap();
2934 case QEMU_OPTION_jitdump
:
2935 perf_enable_jitdump();
2938 case QEMU_OPTION_seed
:
2939 qemu_guest_random_seed_main(optarg
, &error_fatal
);
2942 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
2944 case QEMU_OPTION_gdb
:
2945 add_device_config(DEV_GDB
, optarg
);
2948 if (is_help_option(optarg
)) {
2949 list_data_dirs
= true;
2951 qemu_add_data_dir(g_strdup(optarg
));
2954 case QEMU_OPTION_bios
:
2955 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
2957 case QEMU_OPTION_singlestep
:
2964 keyboard_layout
= optarg
;
2966 case QEMU_OPTION_vga
:
2975 w
= strtol(p
, (char **)&p
, 10);
2978 error_report("invalid resolution or depth");
2984 h
= strtol(p
, (char **)&p
, 10);
2989 depth
= strtol(p
, (char **)&p
, 10);
2990 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
2991 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
2992 depth
!= 24 && depth
!= 32)
2994 } else if (*p
== '\0') {
2995 depth
= graphic_depth
;
3002 graphic_depth
= depth
;
3005 case QEMU_OPTION_echr
:
3008 term_escape_char
= strtol(optarg
, &r
, 0);
3010 printf("Bad argument to echr\n");
3013 case QEMU_OPTION_monitor
:
3014 default_monitor
= 0;
3015 if (strncmp(optarg
, "none", 4)) {
3016 monitor_parse(optarg
, "readline", false);
3019 case QEMU_OPTION_qmp
:
3020 monitor_parse(optarg
, "control", false);
3021 default_monitor
= 0;
3023 case QEMU_OPTION_qmp_pretty
:
3024 monitor_parse(optarg
, "control", true);
3025 default_monitor
= 0;
3027 case QEMU_OPTION_mon
:
3028 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3033 default_monitor
= 0;
3035 case QEMU_OPTION_chardev
:
3036 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3042 case QEMU_OPTION_fsdev
:
3043 olist
= qemu_find_opts("fsdev");
3045 error_report("fsdev support is disabled");
3048 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3053 case QEMU_OPTION_virtfs
: {
3056 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3059 olist
= qemu_find_opts("virtfs");
3061 error_report("virtfs support is disabled");
3064 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3069 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3070 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3071 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3074 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3075 qemu_opts_id(opts
) ?:
3076 qemu_opt_get(opts
, "mount_tag"),
3079 error_report("duplicate or invalid fsdev id: %s",
3080 qemu_opt_get(opts
, "mount_tag"));
3084 writeout
= qemu_opt_get(opts
, "writeout");
3086 #ifdef CONFIG_SYNC_FILE_RANGE
3087 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3089 error_report("writeout=immediate not supported "
3090 "on this platform");
3094 qemu_opt_set(fsdev
, "fsdriver",
3095 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3096 path
= qemu_opt_get(opts
, "path");
3098 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3100 security_model
= qemu_opt_get(opts
, "security_model");
3101 if (security_model
) {
3102 qemu_opt_set(fsdev
, "security_model", security_model
,
3105 socket
= qemu_opt_get(opts
, "socket");
3107 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3109 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3111 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3114 qemu_opt_set_bool(fsdev
, "readonly",
3115 qemu_opt_get_bool(opts
, "readonly", 0),
3117 multidevs
= qemu_opt_get(opts
, "multidevs");
3119 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3121 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3123 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3124 qemu_opt_set(device
, "fsdev",
3125 qemu_opts_id(fsdev
), &error_abort
);
3126 qemu_opt_set(device
, "mount_tag",
3127 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3130 case QEMU_OPTION_serial
:
3131 add_device_config(DEV_SERIAL
, optarg
);
3133 if (strncmp(optarg
, "mon:", 4) == 0) {
3134 default_monitor
= 0;
3137 case QEMU_OPTION_action
:
3138 olist
= qemu_find_opts("action");
3139 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3143 case QEMU_OPTION_watchdog_action
: {
3145 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3146 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3149 case QEMU_OPTION_parallel
:
3150 add_device_config(DEV_PARALLEL
, optarg
);
3151 default_parallel
= 0;
3152 if (strncmp(optarg
, "mon:", 4) == 0) {
3153 default_monitor
= 0;
3156 case QEMU_OPTION_debugcon
:
3157 add_device_config(DEV_DEBUGCON
, optarg
);
3159 case QEMU_OPTION_loadvm
:
3162 case QEMU_OPTION_full_screen
:
3163 dpy
.has_full_screen
= true;
3164 dpy
.full_screen
= true;
3166 case QEMU_OPTION_pidfile
:
3169 case QEMU_OPTION_win2k_hack
:
3170 win2k_install_hack
= 1;
3172 case QEMU_OPTION_acpitable
:
3173 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3178 acpi_table_add(opts
, &error_fatal
);
3180 case QEMU_OPTION_smbios
:
3181 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3186 smbios_entry_add(opts
, &error_fatal
);
3188 case QEMU_OPTION_fwcfg
:
3189 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3195 case QEMU_OPTION_preconfig
:
3196 preconfig_requested
= true;
3198 case QEMU_OPTION_enable_kvm
:
3199 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3202 case QEMU_OPTION_machine
:
3206 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3208 machine_help_func(machine_opts_dict
);
3213 case QEMU_OPTION_accel
:
3214 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3216 optarg
= qemu_opt_get(accel_opts
, "accel");
3217 if (!optarg
|| is_help_option(optarg
)) {
3218 printf("Accelerators supported in QEMU binary:\n");
3219 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3221 for (el
= accel_list
; el
; el
= el
->next
) {
3222 gchar
*typename
= g_strdup(object_class_get_name(
3223 OBJECT_CLASS(el
->data
)));
3224 /* omit qtest which is used for tests only */
3225 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3226 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3227 gchar
**optname
= g_strsplit(typename
,
3228 ACCEL_CLASS_SUFFIX
, 0);
3229 printf("%s\n", optname
[0]);
3230 g_strfreev(optname
);
3234 g_slist_free(accel_list
);
3238 case QEMU_OPTION_usb
:
3239 qdict_put_str(machine_opts_dict
, "usb", "on");
3241 case QEMU_OPTION_usbdevice
:
3242 qdict_put_str(machine_opts_dict
, "usb", "on");
3243 add_device_config(DEV_USB
, optarg
);
3245 case QEMU_OPTION_device
:
3246 if (optarg
[0] == '{') {
3247 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3248 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3249 opt
->opts
= qobject_to(QDict
, obj
);
3250 loc_save(&opt
->loc
);
3251 assert(opt
->opts
!= NULL
);
3252 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3254 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3260 case QEMU_OPTION_smp
:
3261 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3264 case QEMU_OPTION_vnc
:
3267 case QEMU_OPTION_no_acpi
:
3268 qdict_put_str(machine_opts_dict
, "acpi", "off");
3270 case QEMU_OPTION_no_hpet
:
3271 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3272 qdict_put_str(machine_opts_dict
, "hpet", "off");
3274 case QEMU_OPTION_no_reboot
:
3275 olist
= qemu_find_opts("action");
3276 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3278 case QEMU_OPTION_no_shutdown
:
3279 olist
= qemu_find_opts("action");
3280 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3282 case QEMU_OPTION_uuid
:
3283 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3284 error_report("failed to parse UUID string: wrong format");
3287 qemu_uuid_set
= true;
3289 case QEMU_OPTION_option_rom
:
3290 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3291 error_report("too many option ROMs");
3294 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3299 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3300 option_rom
[nb_option_roms
].bootindex
=
3301 qemu_opt_get_number(opts
, "bootindex", -1);
3302 if (!option_rom
[nb_option_roms
].name
) {
3303 error_report("Option ROM file is not specified");
3308 case QEMU_OPTION_semihosting
:
3309 qemu_semihosting_enable();
3311 case QEMU_OPTION_semihosting_config
:
3312 if (qemu_semihosting_config_options(optarg
) != 0) {
3316 case QEMU_OPTION_name
:
3317 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3322 /* Capture guest name if -msg guest-name is used later */
3323 error_guest_name
= qemu_opt_get(opts
, "guest");
3325 case QEMU_OPTION_prom_env
:
3326 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3327 error_report("too many prom variables");
3330 prom_envs
[nb_prom_envs
] = optarg
;
3333 case QEMU_OPTION_old_param
:
3336 case QEMU_OPTION_rtc
:
3337 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3343 case QEMU_OPTION_icount
:
3344 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3350 case QEMU_OPTION_incoming
:
3352 runstate_set(RUN_STATE_INMIGRATE
);
3356 case QEMU_OPTION_only_migratable
:
3357 only_migratable
= 1;
3359 case QEMU_OPTION_nodefaults
:
3362 case QEMU_OPTION_xen_domid
:
3363 if (!(accel_find("xen"))) {
3364 error_report("Option not supported for this target");
3367 xen_domid
= atoi(optarg
);
3369 case QEMU_OPTION_xen_attach
:
3370 if (!(accel_find("xen"))) {
3371 error_report("Option not supported for this target");
3374 xen_mode
= XEN_ATTACH
;
3376 case QEMU_OPTION_xen_domid_restrict
:
3377 if (!(accel_find("xen"))) {
3378 error_report("Option not supported for this target");
3381 xen_domid_restrict
= true;
3383 case QEMU_OPTION_trace
:
3384 trace_opt_parse(optarg
);
3386 case QEMU_OPTION_plugin
:
3387 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3389 case QEMU_OPTION_readconfig
:
3390 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3393 case QEMU_OPTION_spice
:
3394 olist
= qemu_find_opts_err("spice", NULL
);
3396 error_report("spice support is disabled");
3399 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3406 case QEMU_OPTION_qtest
:
3407 qtest_chrdev
= optarg
;
3409 case QEMU_OPTION_qtest_log
:
3412 case QEMU_OPTION_sandbox
:
3413 olist
= qemu_find_opts("sandbox");
3415 #ifndef CONFIG_SECCOMP
3416 error_report("-sandbox support is not enabled "
3417 "in this QEMU binary");
3422 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3427 case QEMU_OPTION_add_fd
:
3429 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3435 error_report("File descriptor passing is disabled on this "
3440 case QEMU_OPTION_object
:
3441 object_option_parse(optarg
);
3443 case QEMU_OPTION_overcommit
:
3444 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3449 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3450 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3452 case QEMU_OPTION_compat
:
3457 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3460 visit_type_CompatPolicy(v
, NULL
, &opts
, &error_fatal
);
3461 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts
);
3463 qapi_free_CompatPolicy(opts
);
3467 case QEMU_OPTION_msg
:
3468 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3473 configure_msg(opts
);
3475 case QEMU_OPTION_dump_vmstate
:
3476 if (vmstate_dump_file
) {
3477 error_report("only one '-dump-vmstate' "
3478 "option may be given");
3481 vmstate_dump_file
= fopen(optarg
, "w");
3482 if (vmstate_dump_file
== NULL
) {
3483 error_report("open %s: %s", optarg
, strerror(errno
));
3487 case QEMU_OPTION_enable_sync_profile
:
3490 case QEMU_OPTION_nouserconfig
:
3491 /* Nothing to be parsed here. Especially, do not error out below. */
3494 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3495 error_report("Option not supported in this build");
3502 * Clear error location left behind by the loop.
3503 * Best done right after the loop. Do not insert code here!
3507 qemu_validate_options(machine_opts_dict
);
3508 qemu_process_sugar_options();
3511 * These options affect everything else and should be processed
3512 * before daemonizing.
3514 qemu_process_early_options();
3516 qemu_process_help_options();
3517 qemu_maybe_daemonize(pid_file
);
3520 * The trace backend must be initialized after daemonizing.
3521 * trace_init_backends() will call st_init(), which will create the
3522 * trace thread in the parent, and also register st_flush_trace_buffer()
3523 * in atexit(). This function will force the parent to wait for the
3524 * writeout thread to finish, which will not occur, and the parent
3525 * process will be left in the host.
3527 if (!trace_init_backends()) {
3532 qemu_init_main_loop(&error_fatal
);
3535 user_register_global_props();
3536 replay_configure(icount_opts
);
3538 configure_rtc(qemu_find_opts_singleton("rtc"));
3540 /* Transfer QemuOpts options into machine options */
3541 parse_memory_options();
3543 qemu_create_machine(machine_opts_dict
);
3547 qemu_disable_default_devices();
3548 qemu_create_default_devices();
3549 qemu_create_early_backends();
3551 qemu_apply_legacy_machine_options(machine_opts_dict
);
3552 qemu_apply_machine_options(machine_opts_dict
);
3553 qobject_unref(machine_opts_dict
);
3554 phase_advance(PHASE_MACHINE_CREATED
);
3557 * Note: uses machine properties such as kernel-irqchip, must run
3558 * after qemu_apply_machine_options.
3560 configure_accelerators(argv
[0]);
3561 phase_advance(PHASE_ACCEL_CREATED
);
3564 * Beware, QOM objects created before this point miss global and
3565 * compat properties.
3567 * Global properties get set up by qdev_prop_register_global(),
3568 * called from user_register_global_props(), and certain option
3569 * desugaring. Also in CPU feature desugaring (buried in
3570 * parse_cpu_option()), which happens below this point, but may
3571 * only target the CPU type, which can only be created after
3572 * parse_cpu_option() returned the type.
3574 * Machine compat properties: object_set_machine_compat_props().
3575 * Accelerator compat props: object_set_accelerator_compat_props(),
3576 * called from do_configure_accelerator().
3579 machine_class
= MACHINE_GET_CLASS(current_machine
);
3580 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3581 warn_report("Machine type '%s' is deprecated: %s",
3582 machine_class
->name
, machine_class
->deprecation_reason
);
3586 * Note: creates a QOM object, must run only after global and
3587 * compat properties have been set up.
3589 migration_object_init();
3591 qemu_create_late_backends();
3593 /* parse features once if machine provides default cpu_type */
3594 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
3596 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3598 /* NB: for machine none cpu_type could STILL be NULL here! */
3600 qemu_resolve_machine_memdev();
3601 parse_numa_opts(current_machine
);
3603 if (vmstate_dump_file
) {
3605 module_load_qom_all();
3606 dump_vmstate_json_to_file(vmstate_dump_file
);
3610 if (!preconfig_requested
) {
3611 qmp_x_exit_preconfig(&error_fatal
);
3613 qemu_init_displays();
3614 accel_setup_post(current_machine
);