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_serial
= 1;
188 static int default_parallel
= 1;
189 static int default_monitor
= 1;
190 static int default_floppy
= 1;
191 static int default_cdrom
= 1;
192 static int default_sdcard
= 1;
193 static int default_vga
= 1;
194 static int default_net
= 1;
200 { .driver
= "isa-serial", .flag
= &default_serial
},
201 { .driver
= "isa-parallel", .flag
= &default_parallel
},
202 { .driver
= "isa-fdc", .flag
= &default_floppy
},
203 { .driver
= "floppy", .flag
= &default_floppy
},
204 { .driver
= "ide-cd", .flag
= &default_cdrom
},
205 { .driver
= "ide-hd", .flag
= &default_cdrom
},
206 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
207 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
208 { .driver
= "VGA", .flag
= &default_vga
},
209 { .driver
= "isa-vga", .flag
= &default_vga
},
210 { .driver
= "cirrus-vga", .flag
= &default_vga
},
211 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
212 { .driver
= "vmware-svga", .flag
= &default_vga
},
213 { .driver
= "qxl-vga", .flag
= &default_vga
},
214 { .driver
= "virtio-vga", .flag
= &default_vga
},
215 { .driver
= "ati-vga", .flag
= &default_vga
},
216 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
217 { .driver
= "virtio-vga-gl", .flag
= &default_vga
},
220 static QemuOptsList qemu_rtc_opts
= {
222 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
227 .type
= QEMU_OPT_STRING
,
230 .type
= QEMU_OPT_STRING
,
233 .type
= QEMU_OPT_STRING
,
235 { /* end of list */ }
239 static QemuOptsList qemu_option_rom_opts
= {
240 .name
= "option-rom",
241 .implied_opt_name
= "romfile",
242 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
246 .type
= QEMU_OPT_NUMBER
,
249 .type
= QEMU_OPT_STRING
,
251 { /* end of list */ }
255 static QemuOptsList qemu_accel_opts
= {
257 .implied_opt_name
= "accel",
258 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
261 * no elements => accept any
262 * sanity checking will happen later
263 * when setting accelerator properties
269 static QemuOptsList qemu_boot_opts
= {
271 .implied_opt_name
= "order",
273 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
277 .type
= QEMU_OPT_STRING
,
280 .type
= QEMU_OPT_STRING
,
283 .type
= QEMU_OPT_BOOL
,
286 .type
= QEMU_OPT_STRING
,
288 .name
= "splash-time",
289 .type
= QEMU_OPT_NUMBER
,
291 .name
= "reboot-timeout",
292 .type
= QEMU_OPT_NUMBER
,
295 .type
= QEMU_OPT_BOOL
,
301 static QemuOptsList qemu_add_fd_opts
= {
303 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
307 .type
= QEMU_OPT_NUMBER
,
308 .help
= "file descriptor of which a duplicate is added to fd set",
311 .type
= QEMU_OPT_NUMBER
,
312 .help
= "ID of the fd set to add fd to",
315 .type
= QEMU_OPT_STRING
,
316 .help
= "free-form string used to describe fd",
318 { /* end of list */ }
322 static QemuOptsList qemu_object_opts
= {
324 .implied_opt_name
= "qom-type",
325 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
331 static QemuOptsList qemu_tpmdev_opts
= {
333 .implied_opt_name
= "type",
334 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
336 /* options are defined in the TPM backends */
337 { /* end of list */ }
341 static QemuOptsList qemu_overcommit_opts
= {
342 .name
= "overcommit",
343 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
347 .type
= QEMU_OPT_BOOL
,
351 .type
= QEMU_OPT_BOOL
,
353 { /* end of list */ }
357 static QemuOptsList qemu_msg_opts
= {
359 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
363 .type
= QEMU_OPT_BOOL
,
366 .name
= "guest-name",
367 .type
= QEMU_OPT_BOOL
,
368 .help
= "Prepends guest name for error messages but only if "
369 "-name guest is set otherwise option is ignored\n",
371 { /* end of list */ }
375 static QemuOptsList qemu_name_opts
= {
377 .implied_opt_name
= "guest",
379 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
383 .type
= QEMU_OPT_STRING
,
384 .help
= "Sets the name of the guest.\n"
385 "This name will be displayed in the SDL window caption.\n"
386 "The name will also be used for the VNC server",
389 .type
= QEMU_OPT_STRING
,
390 .help
= "Sets the name of the QEMU process, as shown in top etc",
392 .name
= "debug-threads",
393 .type
= QEMU_OPT_BOOL
,
394 .help
= "When enabled, name the individual threads; defaults off.\n"
395 "NOTE: The thread names are for debugging and not a\n"
398 { /* End of list */ }
402 static QemuOptsList qemu_mem_opts
= {
404 .implied_opt_name
= "size",
405 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
410 .type
= QEMU_OPT_SIZE
,
414 .type
= QEMU_OPT_NUMBER
,
418 .type
= QEMU_OPT_SIZE
,
420 { /* end of list */ }
424 static QemuOptsList qemu_icount_opts
= {
426 .implied_opt_name
= "shift",
428 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
432 .type
= QEMU_OPT_STRING
,
435 .type
= QEMU_OPT_BOOL
,
438 .type
= QEMU_OPT_BOOL
,
441 .type
= QEMU_OPT_STRING
,
444 .type
= QEMU_OPT_STRING
,
446 .name
= "rrsnapshot",
447 .type
= QEMU_OPT_STRING
,
449 { /* end of list */ }
453 static QemuOptsList qemu_fw_cfg_opts
= {
455 .implied_opt_name
= "name",
456 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
460 .type
= QEMU_OPT_STRING
,
461 .help
= "Sets the fw_cfg name of the blob to be inserted",
464 .type
= QEMU_OPT_STRING
,
465 .help
= "Sets the name of the file from which "
466 "the fw_cfg blob will be loaded",
469 .type
= QEMU_OPT_STRING
,
470 .help
= "Sets content of the blob to be inserted from a string",
473 .type
= QEMU_OPT_STRING
,
474 .help
= "Sets id of the object generating the fw_cfg blob "
477 { /* end of list */ }
481 static QemuOptsList qemu_action_opts
= {
484 .head
= QTAILQ_HEAD_INITIALIZER(qemu_action_opts
.head
),
488 .type
= QEMU_OPT_STRING
,
491 .type
= QEMU_OPT_STRING
,
494 .type
= QEMU_OPT_STRING
,
497 .type
= QEMU_OPT_STRING
,
499 { /* end of list */ }
503 const char *qemu_get_vm_name(void)
508 static void default_driver_disable(const char *driver
)
516 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
517 if (strcmp(default_list
[i
].driver
, driver
) != 0)
519 *(default_list
[i
].flag
) = 0;
523 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
525 const char *driver
= qemu_opt_get(opts
, "driver");
527 default_driver_disable(driver
);
531 static void default_driver_check_json(void)
535 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
536 const char *driver
= qdict_get_try_str(opt
->opts
, "driver");
537 default_driver_disable(driver
);
541 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
543 const char *proc_name
;
545 if (qemu_opt_get(opts
, "debug-threads")) {
546 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
548 qemu_name
= qemu_opt_get(opts
, "guest");
550 proc_name
= qemu_opt_get(opts
, "process");
552 os_set_proc_name(proc_name
);
558 bool defaults_enabled(void)
564 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
566 int fd
, dupfd
, flags
;
568 const char *fd_opaque
= NULL
;
571 fd
= qemu_opt_get_number(opts
, "fd", -1);
572 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
573 fd_opaque
= qemu_opt_get(opts
, "opaque");
576 error_setg(errp
, "fd option is required and must be non-negative");
580 if (fd
<= STDERR_FILENO
) {
581 error_setg(errp
, "fd cannot be a standard I/O stream");
586 * All fds inherited across exec() necessarily have FD_CLOEXEC
587 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
589 flags
= fcntl(fd
, F_GETFD
);
590 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
591 error_setg(errp
, "fd is not valid or already in use");
596 error_setg(errp
, "set option is required and must be non-negative");
600 #ifdef F_DUPFD_CLOEXEC
601 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
605 qemu_set_cloexec(dupfd
);
609 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
613 /* add the duplicate fd, and optionally the opaque string, to the fd set */
614 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, fd_opaque
,
621 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
625 fd
= qemu_opt_get_number(opts
, "fd", -1);
632 /***********************************************************/
633 /* QEMU Block devices */
635 #define HD_OPTS "media=disk"
636 #define CDROM_OPTS "media=cdrom"
638 #define PFLASH_OPTS ""
642 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
644 BlockInterfaceType
*block_default_type
= opaque
;
646 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
649 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
651 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
652 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
657 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
658 int index
, const char *optstr
)
663 if (!enable
|| drive_get_by_index(type
, index
)) {
667 opts
= drive_add(type
, index
, NULL
, optstr
);
669 drive_enable_snapshot(NULL
, opts
, NULL
);
672 dinfo
= drive_new(opts
, type
, &error_abort
);
673 dinfo
->is_default
= true;
677 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
678 MachineClass
*machine_class
, int snapshot
)
681 * If the currently selected machine wishes to override the
682 * units-per-bus property of its default HBA interface type, do so
685 if (machine_class
->units_per_default_bus
) {
686 override_max_devs(machine_class
->block_default_type
,
687 machine_class
->units_per_default_bus
);
690 /* open the virtual block devices */
691 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
692 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
694 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
695 loc_push_restore(&bdo
->loc
);
696 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
698 qapi_free_BlockdevOptions(bdo
->bdo
);
702 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
705 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
706 &machine_class
->block_default_type
, &error_fatal
)) {
707 /* We printed help */
711 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
713 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
714 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
718 static QemuOptsList qemu_smp_opts
= {
720 .implied_opt_name
= "cpus",
722 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
726 .type
= QEMU_OPT_NUMBER
,
729 .type
= QEMU_OPT_NUMBER
,
732 .type
= QEMU_OPT_NUMBER
,
735 .type
= QEMU_OPT_NUMBER
,
738 .type
= QEMU_OPT_NUMBER
,
741 .type
= QEMU_OPT_NUMBER
,
744 .type
= QEMU_OPT_NUMBER
,
750 #if defined(CONFIG_POSIX)
751 static QemuOptsList qemu_run_with_opts
= {
753 .head
= QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts
.head
),
755 #if defined(CONFIG_LINUX)
757 .name
= "async-teardown",
758 .type
= QEMU_OPT_BOOL
,
763 .type
= QEMU_OPT_STRING
,
765 { /* end of list */ }
769 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
773 #define qemu_add_run_with_opts()
775 #endif /* CONFIG_POSIX */
777 static void realtime_init(void)
780 if (os_mlock() < 0) {
781 error_report("locking memory failed");
788 static void configure_msg(QemuOpts
*opts
)
790 message_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
791 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
795 /***********************************************************/
798 static int usb_device_add(const char *devname
)
800 USBDevice
*dev
= NULL
;
802 if (!machine_usb(current_machine
)) {
806 dev
= usbdevice_create(devname
);
813 static int usb_parse(const char *cmdline
)
816 r
= usb_device_add(cmdline
);
818 error_report("could not add USB device '%s'", cmdline
);
823 /***********************************************************/
824 /* machine registration */
826 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
830 for (el
= machines
; el
; el
= el
->next
) {
831 MachineClass
*mc
= el
->data
;
833 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
841 static MachineClass
*find_default_machine(GSList
*machines
)
844 MachineClass
*default_machineclass
= NULL
;
846 for (el
= machines
; el
; el
= el
->next
) {
847 MachineClass
*mc
= el
->data
;
849 if (mc
->is_default
) {
850 assert(default_machineclass
== NULL
&& "Multiple default machines");
851 default_machineclass
= mc
;
855 return default_machineclass
;
858 static void version(void)
860 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
861 QEMU_COPYRIGHT
"\n");
864 static void help(int exitcode
)
867 printf("usage: %s [options] [disk_image]\n\n"
868 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
871 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
872 if ((arch_mask) & arch_type) \
873 fputs(opt_help, stdout);
875 #define ARCHHEADING(text, arch_mask) \
876 if ((arch_mask) & arch_type) \
877 puts(stringify(text));
879 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
881 #include "qemu-options.def"
883 printf("\nDuring emulation, the following keys are useful:\n"
884 "ctrl-alt-f toggle full screen\n"
885 "ctrl-alt-n switch to virtual console 'n'\n"
886 "ctrl-alt toggle mouse and keyboard grab\n"
888 "When using -nographic, press 'ctrl-a h' to get some help.\n"
890 QEMU_HELP_BOTTOM
"\n");
897 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
899 #define DEFHEADING(text)
900 #define ARCHHEADING(text, arch_mask)
902 #include "qemu-options.def"
905 #define HAS_ARG 0x0001
907 typedef struct QEMUOption
{
914 static const QEMUOption qemu_options
[] = {
915 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
917 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
918 { option, opt_arg, opt_enum, arch_mask },
919 #define DEFHEADING(text)
920 #define ARCHHEADING(text, arch_mask)
922 #include "qemu-options.def"
923 { /* end of list */ }
926 typedef struct VGAInterfaceInfo
{
927 const char *opt_name
; /* option name */
928 const char *name
; /* human-readable name */
929 /* Class names indicating that support is available.
930 * If no class is specified, the interface is always available */
931 const char *class_names
[2];
934 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
937 .name
= "no graphic card",
941 .name
= "standard VGA",
942 .class_names
= { "VGA", "isa-vga" },
945 .opt_name
= "cirrus",
946 .name
= "Cirrus VGA",
947 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
950 .opt_name
= "vmware",
951 .name
= "VMWare SVGA",
952 .class_names
= { "vmware-svga" },
955 .opt_name
= "virtio",
956 .name
= "Virtio VGA",
957 .class_names
= { "virtio-vga" },
962 .class_names
= { "qxl-vga" },
966 .name
= "TCX framebuffer",
967 .class_names
= { "sun-tcx" },
971 .name
= "CG3 framebuffer",
972 .class_names
= { "cgthree" },
974 #ifdef CONFIG_XEN_BACKEND
977 .name
= "Xen paravirtualized framebuffer",
982 static bool vga_interface_available(VGAInterfaceType t
)
984 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
986 assert(t
< VGA_TYPE_MAX
);
987 return !ti
->class_names
[0] ||
988 module_object_class_by_name(ti
->class_names
[0]) ||
989 module_object_class_by_name(ti
->class_names
[1]);
993 get_default_vga_model(const MachineClass
*machine_class
)
995 if (machine_class
->default_display
) {
996 for (int t
= 0; t
< VGA_TYPE_MAX
; t
++) {
997 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
999 if (ti
->opt_name
&& vga_interface_available(t
) &&
1000 g_str_equal(ti
->opt_name
, machine_class
->default_display
)) {
1001 return machine_class
->default_display
;
1005 warn_report_once("Default display '%s' is not available in this binary",
1006 machine_class
->default_display
);
1008 } else if (vga_interface_available(VGA_CIRRUS
)) {
1010 } else if (vga_interface_available(VGA_STD
)) {
1017 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1022 if (g_str_equal(p
, "help")) {
1023 const char *def
= get_default_vga_model(machine_class
);
1025 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1026 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1028 if (vga_interface_available(t
) && ti
->opt_name
) {
1029 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1030 (def
&& g_str_equal(ti
->opt_name
, def
)) ?
1037 assert(vga_interface_type
== VGA_NONE
);
1038 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1039 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1040 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1041 if (!vga_interface_available(t
)) {
1042 error_report("%s not available", ti
->name
);
1045 vga_interface_type
= t
;
1049 if (t
== VGA_TYPE_MAX
) {
1051 error_report("unknown vga type: %s", p
);
1055 const char *nextopt
;
1057 if (strstart(opts
, ",retrace=", &nextopt
)) {
1059 if (strstart(opts
, "dumb", &nextopt
))
1060 vga_retrace_method
= VGA_RETRACE_DUMB
;
1061 else if (strstart(opts
, "precise", &nextopt
))
1062 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1063 else goto invalid_vga
;
1064 } else goto invalid_vga
;
1069 static void parse_display_qapi(const char *optarg
)
1071 DisplayOptions
*opts
;
1074 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1076 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1077 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1079 qapi_free_DisplayOptions(opts
);
1083 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1085 return QAPI_CLONE(DisplayOptions
, &dpy
);
1088 static void parse_display(const char *p
)
1092 if (is_help_option(p
)) {
1093 qemu_display_help();
1097 if (strstart(p
, "vnc", &opts
)) {
1099 * vnc isn't a (local) DisplayType but a protocol for remote
1103 vnc_parse(opts
+ 1);
1105 error_report("VNC requires a display argument vnc=<display>");
1109 parse_display_qapi(p
);
1113 static inline bool nonempty_str(const char *str
)
1118 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1122 const char *name
, *file
, *str
, *gen_id
;
1123 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1125 if (fw_cfg
== NULL
) {
1126 error_setg(errp
, "fw_cfg device not available");
1129 name
= qemu_opt_get(opts
, "name");
1130 file
= qemu_opt_get(opts
, "file");
1131 str
= qemu_opt_get(opts
, "string");
1132 gen_id
= qemu_opt_get(opts
, "gen_id");
1134 /* we need the name, and exactly one of: file, content string, gen_id */
1135 if (!nonempty_str(name
) ||
1136 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1137 error_setg(errp
, "name, plus exactly one of file,"
1138 " string and gen_id, are needed");
1141 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1142 error_setg(errp
, "name too long (max. %d char)",
1143 FW_CFG_MAX_FILE_PATH
- 1);
1146 if (nonempty_str(gen_id
)) {
1148 * In this particular case where the content is populated
1149 * internally, the "etc/" namespace protection is relaxed,
1150 * so do not emit a warning.
1152 } else if (strncmp(name
, "opt/", 4) != 0) {
1153 warn_report("externally provided fw_cfg item names "
1154 "should be prefixed with \"opt/\"");
1156 if (nonempty_str(str
)) {
1157 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1158 buf
= g_memdup(str
, size
);
1159 } else if (nonempty_str(gen_id
)) {
1160 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1166 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1167 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1172 /* For legacy, keep user files in a specific global order. */
1173 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1174 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1175 fw_cfg_reset_order_override(fw_cfg
);
1179 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1181 return qdev_device_help(opts
);
1184 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1188 dev
= qdev_device_add(opts
, errp
);
1189 if (!dev
&& *errp
) {
1190 error_report_err(*errp
);
1193 object_unref(OBJECT(dev
));
1198 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1200 Error
*local_err
= NULL
;
1202 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1204 error_propagate(errp
, local_err
);
1212 #ifdef CONFIG_VIRTFS
1213 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1215 return qemu_fsdev_add(opts
, errp
);
1219 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1221 return monitor_init_opts(opts
, errp
);
1224 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
1226 static int monitor_device_index
= 0;
1231 if (strstart(optarg
, "chardev:", &p
)) {
1232 snprintf(label
, sizeof(label
), "%s", p
);
1234 snprintf(label
, sizeof(label
), "compat_monitor%d",
1235 monitor_device_index
);
1236 opts
= qemu_chr_parse_compat(label
, optarg
, true);
1238 error_report("parse error: %s", optarg
);
1243 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1244 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1245 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1246 if (!strcmp(mode
, "control")) {
1247 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1249 assert(pretty
== false);
1251 monitor_device_index
++;
1254 struct device_config
{
1256 DEV_USB
, /* -usbdevice */
1257 DEV_SERIAL
, /* -serial */
1258 DEV_PARALLEL
, /* -parallel */
1259 DEV_DEBUGCON
, /* -debugcon */
1260 DEV_GDB
, /* -gdb, -s */
1261 DEV_SCLP
, /* s390 sclp */
1263 const char *cmdline
;
1265 QTAILQ_ENTRY(device_config
) next
;
1268 static QTAILQ_HEAD(, device_config
) device_configs
=
1269 QTAILQ_HEAD_INITIALIZER(device_configs
);
1271 static void add_device_config(int type
, const char *cmdline
)
1273 struct device_config
*conf
;
1275 conf
= g_malloc0(sizeof(*conf
));
1277 conf
->cmdline
= cmdline
;
1278 loc_save(&conf
->loc
);
1279 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1282 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1284 struct device_config
*conf
;
1287 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1288 if (conf
->type
!= type
)
1290 loc_push_restore(&conf
->loc
);
1291 rc
= func(conf
->cmdline
);
1292 loc_pop(&conf
->loc
);
1300 static void qemu_disable_default_devices(void)
1302 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1304 default_driver_check_json();
1305 qemu_opts_foreach(qemu_find_opts("device"),
1306 default_driver_check
, NULL
, NULL
);
1307 qemu_opts_foreach(qemu_find_opts("global"),
1308 default_driver_check
, NULL
, NULL
);
1310 if (!vga_model
&& !default_vga
) {
1311 vga_interface_type
= VGA_DEVICE
;
1312 vga_interface_created
= true;
1314 if (!has_defaults
|| machine_class
->no_serial
) {
1317 if (!has_defaults
|| machine_class
->no_parallel
) {
1318 default_parallel
= 0;
1320 if (!has_defaults
|| machine_class
->no_floppy
) {
1323 if (!has_defaults
|| machine_class
->no_cdrom
) {
1326 if (!has_defaults
|| machine_class
->no_sdcard
) {
1329 if (!has_defaults
) {
1330 default_monitor
= 0;
1334 if (default_net
&& machine_class
->default_nic
&&
1335 !module_object_class_by_name(machine_class
->default_nic
)) {
1336 warn_report("Default NIC '%s' is not available in this binary",
1337 machine_class
->default_nic
);
1343 static void qemu_create_default_devices(void)
1345 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1347 if (is_daemonized()) {
1348 /* According to documentation and historically, -nographic redirects
1349 * serial port, parallel port and monitor to stdio, which does not work
1350 * with -daemonize. We can redirect these to null instead, but since
1351 * -nographic is legacy, let's just error out.
1352 * We disallow -nographic only if all other ports are not redirected
1353 * explicitly, to not break existing legacy setups which uses
1354 * -nographic _and_ redirects all ports explicitly - this is valid
1355 * usage, -nographic is just a no-op in this case.
1358 && (default_parallel
|| default_serial
|| default_monitor
)) {
1359 error_report("-nographic cannot be used with -daemonize");
1365 if (default_parallel
)
1366 add_device_config(DEV_PARALLEL
, "null");
1367 if (default_serial
&& default_monitor
) {
1368 add_device_config(DEV_SERIAL
, "mon:stdio");
1371 add_device_config(DEV_SERIAL
, "stdio");
1372 if (default_monitor
)
1373 monitor_parse("stdio", "readline", false);
1377 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
1378 if (default_parallel
)
1379 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
1380 if (default_monitor
)
1381 monitor_parse("vc:80Cx24C", "readline", false);
1385 QemuOptsList
*net
= qemu_find_opts("net");
1386 qemu_opts_parse(net
, "nic", true, &error_abort
);
1388 qemu_opts_parse(net
, "user", true, &error_abort
);
1392 #if defined(CONFIG_VNC)
1393 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
1397 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1398 if (!qemu_display_find_default(&dpy
)) {
1399 dpy
.type
= DISPLAY_TYPE_NONE
;
1400 #if defined(CONFIG_VNC)
1401 vnc_parse("localhost:0,to=99,id=default");
1405 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1406 dpy
.type
= DISPLAY_TYPE_NONE
;
1409 /* If no default VGA is requested, the default is "none". */
1411 vga_model
= get_default_vga_model(machine_class
);
1414 select_vgahw(machine_class
, vga_model
);
1418 static int serial_parse(const char *devname
)
1420 int index
= num_serial_hds
;
1423 if (strcmp(devname
, "none") == 0)
1425 snprintf(label
, sizeof(label
), "serial%d", index
);
1426 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1428 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1429 if (!serial_hds
[index
]) {
1430 error_report("could not connect serial device"
1431 " to character backend '%s'", devname
);
1438 Chardev
*serial_hd(int i
)
1441 if (i
< num_serial_hds
) {
1442 return serial_hds
[i
];
1447 static int parallel_parse(const char *devname
)
1449 static int index
= 0;
1452 if (strcmp(devname
, "none") == 0)
1454 if (index
== MAX_PARALLEL_PORTS
) {
1455 error_report("too many parallel ports");
1458 snprintf(label
, sizeof(label
), "parallel%d", index
);
1459 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1460 if (!parallel_hds
[index
]) {
1461 error_report("could not connect parallel device"
1462 " to character backend '%s'", devname
);
1469 static int debugcon_parse(const char *devname
)
1473 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1474 error_report("invalid character backend '%s'", devname
);
1477 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1479 error_report("already have a debugcon device");
1482 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1483 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1487 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1489 const MachineClass
*mc1
= a
, *mc2
= b
;
1492 if (mc1
->family
== NULL
) {
1493 if (mc2
->family
== NULL
) {
1494 /* Compare standalone machine types against each other; they sort
1495 * in increasing order.
1497 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1498 object_class_get_name(OBJECT_CLASS(mc2
)));
1501 /* Standalone machine types sort after families. */
1505 if (mc2
->family
== NULL
) {
1506 /* Families sort before standalone machine types. */
1510 /* Families sort between each other alphabetically increasingly. */
1511 res
= strcmp(mc1
->family
, mc2
->family
);
1516 /* Within the same family, machine types sort in decreasing order. */
1517 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1518 object_class_get_name(OBJECT_CLASS(mc1
)));
1521 static void machine_help_func(const QDict
*qdict
)
1523 GSList
*machines
, *el
;
1524 const char *type
= qdict_get_try_str(qdict
, "type");
1526 machines
= object_class_get_list(TYPE_MACHINE
, false);
1528 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1529 if (machine_class
) {
1530 type_print_class_properties(object_class_get_name(machine_class
));
1535 printf("Supported machines are:\n");
1536 machines
= g_slist_sort(machines
, machine_class_cmp
);
1537 for (el
= machines
; el
; el
= el
->next
) {
1538 MachineClass
*mc
= el
->data
;
1540 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1542 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1543 mc
->is_default
? " (default)" : "",
1544 mc
->deprecation_reason
? " (deprecated)" : "");
1549 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1554 /* Preserve the caller's reference to prop. */
1556 qdict_put(opts
, propname
, prop
);
1557 keyval_merge(machine_opts_dict
, opts
, errp
);
1558 qobject_unref(opts
);
1562 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1568 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1570 qemu_opts_print_help(opts_list
, true);
1573 machine_merge_property(propname
, prop
, &error_fatal
);
1574 qobject_unref(prop
);
1577 static const char *pid_file
;
1578 struct UnlinkPidfileNotifier
{
1580 char *pid_file_realpath
;
1582 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier
;
1584 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1586 struct UnlinkPidfileNotifier
*upn
;
1588 upn
= DO_UPCAST(struct UnlinkPidfileNotifier
, notifier
, n
);
1589 unlink(upn
->pid_file_realpath
);
1592 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1593 const char **poptarg
, int *poptind
)
1595 const QEMUOption
*popt
;
1596 int optind
= *poptind
;
1597 char *r
= argv
[optind
];
1600 loc_set_cmdline(argv
, optind
, 1);
1602 /* Treat --foo the same as -foo. */
1605 popt
= qemu_options
;
1608 error_report("invalid option");
1611 if (!strcmp(popt
->name
, r
+ 1))
1615 if (popt
->flags
& HAS_ARG
) {
1616 if (optind
>= argc
) {
1617 error_report("requires an argument");
1620 optarg
= argv
[optind
++];
1621 loc_set_cmdline(argv
, optind
- 2, 2);
1632 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1634 const char *optarg
= qdict_get_try_str(qdict
, "type");
1635 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1636 MachineClass
*machine_class
;
1637 Error
*local_err
= NULL
;
1640 machine_class
= find_machine(optarg
, machines
);
1641 qdict_del(qdict
, "type");
1642 if (!machine_class
) {
1643 error_setg(&local_err
, "unsupported machine type");
1646 machine_class
= find_default_machine(machines
);
1647 if (!machine_class
) {
1648 error_setg(&local_err
, "No machine specified, and there is no default");
1652 g_slist_free(machines
);
1654 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1655 error_propagate(errp
, local_err
);
1657 return machine_class
;
1660 static int object_parse_property_opt(Object
*obj
,
1661 const char *name
, const char *value
,
1662 const char *skip
, Error
**errp
)
1664 if (g_str_equal(name
, skip
)) {
1668 if (!object_property_parse(obj
, name
, value
, errp
)) {
1675 /* *Non*recursively replace underscores with dashes in QDict keys. */
1676 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1678 const QDictEntry
*ent
, *next
;
1681 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1682 g_autofree
char *new_key
= NULL
;
1684 next
= qdict_next(qdict
, ent
);
1685 if (!strchr(ent
->key
, '_')) {
1688 new_key
= g_strdup(ent
->key
);
1689 for (p
= new_key
; *p
; p
++) {
1694 if (qdict_haskey(qdict
, new_key
)) {
1695 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1698 qobject_ref(ent
->value
);
1699 qdict_put_obj(qdict
, new_key
, ent
->value
);
1700 qdict_del(qdict
, ent
->key
);
1704 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1709 keyval_dashify(qdict
, &error_fatal
);
1711 /* Legacy options do not correspond to MachineState properties. */
1712 value
= qdict_get_try_str(qdict
, "accel");
1714 accelerators
= g_strdup(value
);
1715 qdict_del(qdict
, "accel");
1718 value
= qdict_get_try_str(qdict
, "igd-passthru");
1720 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1722 qdict_del(qdict
, "igd-passthru");
1725 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1727 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1729 qdict_del(qdict
, "kvm-shadow-mem");
1732 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1734 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1736 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1738 qdict_del(qdict
, "kernel-irqchip");
1741 value
= qdict_get_try_str(qdict
, "memory-backend");
1744 error_report("'-mem-path' can't be used together with"
1745 "'-machine memory-backend'");
1749 /* Resolved later. */
1750 ram_memdev_id
= g_strdup(value
);
1751 qdict_del(qdict
, "memory-backend");
1754 prop
= qdict_get(qdict
, "memory");
1756 have_custom_ram_size
=
1757 qobject_type(prop
) == QTYPE_QDICT
&&
1758 qdict_haskey(qobject_to(QDict
, prop
), "size");
1762 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1764 ObjectOption
*opt
, *next
;
1766 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1767 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1768 if (type_opt_predicate(type
)) {
1769 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1770 qapi_free_ObjectOptions(opt
->opts
);
1771 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1777 static void object_option_add_visitor(Visitor
*v
)
1779 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1780 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1781 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1784 static void object_option_parse(const char *optarg
)
1790 if (optarg
[0] == '{') {
1791 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
1793 v
= qobject_input_visitor_new(obj
);
1796 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1802 type
= qemu_opt_get(opts
, "qom-type");
1804 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1806 if (user_creatable_print_help(type
, opts
)) {
1810 v
= opts_visitor_new(opts
);
1813 object_option_add_visitor(v
);
1818 * Very early object creation, before the sandbox options have been activated.
1820 static bool object_create_pre_sandbox(const char *type
)
1823 * Objects should in general not get initialized "too early" without
1824 * a reason. If you add one, state the reason in a comment!
1828 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1829 * affinity of threads.
1831 if (g_str_equal(type
, "thread-context")) {
1839 * Initial object creation happens before all other
1840 * QEMU data types are created. The majority of objects
1841 * can be created at this point. The rng-egd object
1842 * cannot be created here, as it depends on the chardev
1845 static bool object_create_early(const char *type
)
1848 * Objects should not be made "delayed" without a reason. If you
1849 * add one, state the reason in a comment!
1852 /* Reason: already created. */
1853 if (object_create_pre_sandbox(type
)) {
1857 /* Reason: property "chardev" */
1858 if (g_str_equal(type
, "rng-egd") ||
1859 g_str_equal(type
, "qtest")) {
1863 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1864 /* Reason: cryptodev-vhost-user property "chardev" */
1865 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1870 /* Reason: vhost-user-blk-server property "node-name" */
1871 if (g_str_equal(type
, "vhost-user-blk-server")) {
1875 * Reason: filter-* property "netdev" etc.
1877 if (g_str_equal(type
, "filter-buffer") ||
1878 g_str_equal(type
, "filter-dump") ||
1879 g_str_equal(type
, "filter-mirror") ||
1880 g_str_equal(type
, "filter-redirector") ||
1881 g_str_equal(type
, "colo-compare") ||
1882 g_str_equal(type
, "filter-rewriter") ||
1883 g_str_equal(type
, "filter-replay")) {
1888 * Allocation of large amounts of memory may delay
1889 * chardev initialization for too long, and trigger timeouts
1890 * on software that waits for a monitor socket to be created
1893 if (g_str_has_prefix(type
, "memory-backend-")) {
1900 static void qemu_apply_machine_options(QDict
*qdict
)
1902 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1904 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1905 /* fall back to the -kernel/-append */
1906 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1909 if (current_machine
->smp
.cpus
> 1) {
1910 replay_add_blocker("smp");
1914 static void qemu_create_early_backends(void)
1916 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1917 #if defined(CONFIG_SDL)
1918 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1920 const bool use_sdl
= false;
1922 #if defined(CONFIG_GTK)
1923 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1925 const bool use_gtk
= false;
1928 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1929 error_report("window-close is only valid for GTK and SDL, "
1933 qemu_display_early_init(&dpy
);
1934 qemu_console_early_init();
1936 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1937 #if defined(CONFIG_OPENGL)
1938 error_report("OpenGL is not supported by the display");
1940 error_report("OpenGL support is disabled");
1945 object_option_foreach_add(object_create_early
);
1947 /* spice needs the timers to be initialized by this point */
1948 /* spice must initialize before audio as it changes the default audiodev */
1949 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1952 qemu_opts_foreach(qemu_find_opts("chardev"),
1953 chardev_init_func
, NULL
, &error_fatal
);
1955 #ifdef CONFIG_VIRTFS
1956 qemu_opts_foreach(qemu_find_opts("fsdev"),
1957 fsdev_init_func
, NULL
, &error_fatal
);
1961 * Note: we need to create audio and block backends before
1962 * setting machine properties, so they can be referred to.
1964 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1965 if (!audio_init_audiodevs()) {
1972 * The remainder of object creation happens after the
1973 * creation of chardev, fsdev, net clients and device data types.
1975 static bool object_create_late(const char *type
)
1977 return !object_create_early(type
) && !object_create_pre_sandbox(type
);
1980 static void qemu_create_late_backends(void)
1983 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
1988 object_option_foreach_add(object_create_late
);
1990 if (tpm_init() < 0) {
1994 qemu_opts_foreach(qemu_find_opts("mon"),
1995 mon_init_func
, NULL
, &error_fatal
);
1997 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
1999 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
2001 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
2004 /* now chardevs have been created we may have semihosting to connect */
2005 qemu_semihosting_chardev_init();
2008 static void qemu_resolve_machine_memdev(void)
2010 if (ram_memdev_id
) {
2012 ram_addr_t backend_size
;
2014 backend
= object_resolve_path_type(ram_memdev_id
,
2015 TYPE_MEMORY_BACKEND
, NULL
);
2017 error_report("Memory backend '%s' not found", ram_memdev_id
);
2020 if (!have_custom_ram_size
) {
2021 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
2022 current_machine
->ram_size
= backend_size
;
2024 object_property_set_link(OBJECT(current_machine
),
2025 "memory-backend", backend
, &error_fatal
);
2029 static void parse_memory_options(void)
2031 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2033 const char *mem_str
;
2036 loc_push_none(&loc
);
2037 qemu_opts_loc_restore(opts
);
2041 if (qemu_opt_get_size(opts
, "size", 0) != 0) {
2042 /* Fix up legacy suffix-less format */
2043 mem_str
= qemu_opt_get(opts
, "size");
2044 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2045 g_autofree
char *mib_str
= g_strdup_printf("%sM", mem_str
);
2046 qdict_put_str(prop
, "size", mib_str
);
2048 qdict_put_str(prop
, "size", mem_str
);
2052 if (qemu_opt_get(opts
, "maxmem")) {
2053 qdict_put_str(prop
, "max-size", qemu_opt_get(opts
, "maxmem"));
2055 if (qemu_opt_get(opts
, "slots")) {
2056 qdict_put_str(prop
, "slots", qemu_opt_get(opts
, "slots"));
2060 qdict_put(dict
, "memory", prop
);
2061 keyval_merge(machine_opts_dict
, dict
, &error_fatal
);
2062 qobject_unref(dict
);
2066 static void qemu_create_machine(QDict
*qdict
)
2068 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2069 object_set_machine_compat_props(machine_class
->compat_props
);
2071 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2072 object_property_add_child(object_get_root(), "machine",
2073 OBJECT(current_machine
));
2074 object_property_add_child(container_get(OBJECT(current_machine
),
2076 "sysbus", OBJECT(sysbus_get_default()));
2078 if (machine_class
->minimum_page_bits
) {
2079 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2080 /* This would be a board error: specifying a minimum smaller than
2081 * a target's compile-time fixed setting.
2083 g_assert_not_reached();
2087 cpu_exec_init_all();
2090 if (machine_class
->hw_version
) {
2091 qemu_set_hw_version(machine_class
->hw_version
);
2095 * Get the default machine options from the machine if it is not already
2096 * specified either by the configuration file or by the command line.
2098 if (machine_class
->default_machine_opts
) {
2099 QDict
*default_opts
=
2100 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2102 qemu_apply_legacy_machine_options(default_opts
);
2103 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2104 false, &error_abort
);
2105 qobject_unref(default_opts
);
2109 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2113 g
= g_malloc0(sizeof(*g
));
2114 g
->driver
= qemu_opt_get(opts
, "driver");
2115 g
->property
= qemu_opt_get(opts
, "property");
2116 g
->value
= qemu_opt_get(opts
, "value");
2117 qdev_prop_register_global(g
);
2122 * Return whether configuration group @group is stored in QemuOpts, or
2123 * recorded as one or more QDicts by qemu_record_config_group.
2125 static bool is_qemuopts_group(const char *group
)
2127 if (g_str_equal(group
, "object") ||
2128 g_str_equal(group
, "audiodev") ||
2129 g_str_equal(group
, "machine") ||
2130 g_str_equal(group
, "smp-opts") ||
2131 g_str_equal(group
, "boot-opts")) {
2137 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2138 bool from_json
, Error
**errp
)
2140 if (g_str_equal(group
, "object")) {
2141 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2142 object_option_add_visitor(v
);
2145 } else if (g_str_equal(group
, "audiodev")) {
2146 Audiodev
*dev
= NULL
;
2147 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2148 if (visit_type_Audiodev(v
, NULL
, &dev
, errp
)) {
2153 } else if (g_str_equal(group
, "machine")) {
2155 * Cannot merge string-valued and type-safe dictionaries, so JSON
2156 * is not accepted yet for -M.
2159 keyval_merge(machine_opts_dict
, dict
, errp
);
2160 } else if (g_str_equal(group
, "smp-opts")) {
2161 machine_merge_property("smp", dict
, &error_fatal
);
2162 } else if (g_str_equal(group
, "boot-opts")) {
2163 machine_merge_property("boot", dict
, &error_fatal
);
2170 * Parse non-QemuOpts config file groups, pass the rest to
2171 * qemu_config_do_parse.
2173 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2174 void *opaque
, Error
**errp
)
2177 if (is_qemuopts_group(group
)) {
2178 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2182 crumpled
= qdict_crumple(qdict
, errp
);
2186 switch (qobject_type(crumpled
)) {
2188 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2191 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2194 g_assert_not_reached();
2196 qobject_unref(crumpled
);
2199 static void qemu_read_default_config_file(Error
**errp
)
2203 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2205 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2207 if (ret
== -ENOENT
) {
2214 static void qemu_set_option(const char *str
, Error
**errp
)
2216 char group
[64], id
[64], arg
[64];
2221 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2222 if (rc
< 3 || str
[offset
] != '=') {
2223 error_setg(errp
, "can't parse: \"%s\"", str
);
2227 if (!is_qemuopts_group(group
)) {
2228 error_setg(errp
, "-set is not supported with %s", group
);
2230 list
= qemu_find_opts_err(group
, errp
);
2232 opts
= qemu_opts_find(list
, id
);
2234 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2237 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2242 static void user_register_global_props(void)
2244 qemu_opts_foreach(qemu_find_opts("global"),
2245 global_init_func
, NULL
, NULL
);
2248 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2250 icount_configure(opts
, errp
);
2254 static int accelerator_set_property(void *opaque
,
2255 const char *name
, const char *value
,
2258 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2261 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2263 bool *p_init_failed
= opaque
;
2264 const char *acc
= qemu_opt_get(opts
, "accel");
2265 AccelClass
*ac
= accel_find(acc
);
2268 bool qtest_with_kvm
;
2271 error_setg(errp
, QERR_MISSING_PARAMETER
, "accel");
2275 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2278 if (!qtest_with_kvm
) {
2279 error_report("invalid accelerator %s", acc
);
2283 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2284 object_apply_compat_props(OBJECT(accel
));
2285 qemu_opt_foreach(opts
, accelerator_set_property
,
2289 * If legacy -singlestep option is set, honour it for TCG and
2290 * silently ignore for any other accelerator (which is how this
2291 * option has always behaved).
2293 if (opt_one_insn_per_tb
) {
2295 * This will always succeed for TCG, and we want to ignore
2296 * the error from trying to set a nonexistent property
2297 * on any other accelerator.
2299 object_property_set_bool(OBJECT(accel
), "one-insn-per-tb", true, NULL
);
2301 ret
= accel_init_machine(accel
, current_machine
);
2303 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2304 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2312 *p_init_failed
= true;
2316 static void configure_accelerators(const char *progname
)
2318 bool init_failed
= false;
2320 qemu_opts_foreach(qemu_find_opts("icount"),
2321 do_configure_icount
, NULL
, &error_fatal
);
2323 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2324 char **accel_list
, **tmp
;
2326 if (accelerators
== NULL
) {
2327 /* Select the default accelerator */
2328 bool have_tcg
= accel_find("tcg");
2329 bool have_kvm
= accel_find("kvm");
2331 if (have_tcg
&& have_kvm
) {
2332 if (g_str_has_suffix(progname
, "kvm")) {
2333 /* If the program name ends with "kvm", we prefer KVM */
2334 accelerators
= "kvm:tcg";
2336 accelerators
= "tcg:kvm";
2338 } else if (have_kvm
) {
2339 accelerators
= "kvm";
2340 } else if (have_tcg
) {
2341 accelerators
= "tcg";
2343 error_report("No accelerator selected and"
2344 " no default accelerator available");
2348 accel_list
= g_strsplit(accelerators
, ":", 0);
2350 for (tmp
= accel_list
; *tmp
; tmp
++) {
2352 * Filter invalid accelerators here, to prevent obscenities
2353 * such as "-machine accel=tcg,,thread=single".
2355 if (accel_find(*tmp
)) {
2356 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2359 error_report("invalid accelerator %s", *tmp
);
2362 g_strfreev(accel_list
);
2364 if (accelerators
!= NULL
) {
2365 error_report("The -accel and \"-machine accel=\" options are incompatible");
2370 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2371 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2373 error_report("no accelerator found");
2378 if (init_failed
&& !qtest_chrdev
) {
2379 error_report("falling back to %s", current_accel_name());
2382 if (icount_enabled() && !tcg_enabled()) {
2383 error_report("-icount is not allowed with hardware virtualization");
2388 static void qemu_validate_options(const QDict
*machine_opts
)
2390 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2391 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2392 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2394 if (kernel_filename
== NULL
) {
2395 if (kernel_cmdline
!= NULL
) {
2396 error_report("-append only allowed with -kernel option");
2400 if (initrd_filename
!= NULL
) {
2401 error_report("-initrd only allowed with -kernel option");
2406 if (loadvm
&& preconfig_requested
) {
2407 error_report("'preconfig' and 'loadvm' options are "
2408 "mutually exclusive");
2411 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2412 error_report("'preconfig' supports '-incoming defer' only");
2416 #ifdef CONFIG_CURSES
2417 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2418 error_report("curses display cannot be used with -daemonize");
2424 static void qemu_process_sugar_options(void)
2427 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2428 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2429 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2430 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2431 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2432 object_register_sugar_prop("memory-backend", "prealloc-threads",
2436 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2440 /* -action processing */
2443 * Process all the -action parameters parsed from cmdline.
2445 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2447 Error
*local_err
= NULL
;
2448 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2449 QObject
*ret
= NULL
;
2450 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2452 qobject_unref(qdict
);
2454 error_propagate(errp
, local_err
);
2460 static void qemu_process_early_options(void)
2462 qemu_opts_foreach(qemu_find_opts("name"),
2463 parse_name
, NULL
, &error_fatal
);
2465 object_option_foreach_add(object_create_pre_sandbox
);
2467 #ifdef CONFIG_SECCOMP
2468 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2470 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2474 if (qemu_opts_foreach(qemu_find_opts("action"),
2475 process_runstate_actions
, NULL
, &error_fatal
)) {
2480 qemu_opts_foreach(qemu_find_opts("add-fd"),
2481 parse_add_fd
, NULL
, &error_fatal
);
2483 qemu_opts_foreach(qemu_find_opts("add-fd"),
2484 cleanup_add_fd
, NULL
, &error_fatal
);
2487 /* Open the logfile at this point and set the log mask if necessary. */
2491 mask
= qemu_str_to_log_mask(log_mask
);
2493 qemu_print_log_usage(stdout
);
2497 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2500 qemu_add_default_firmwarepath();
2503 static void qemu_process_help_options(void)
2506 * Check for -cpu help and -device help before we call select_machine(),
2507 * which will return an error if the architecture has no default machine
2508 * type and the user did not specify one, so that the user doesn't need
2509 * to say '-cpu help -machine something'.
2511 if (cpu_option
&& is_help_option(cpu_option
)) {
2516 if (qemu_opts_foreach(qemu_find_opts("device"),
2517 device_help_func
, NULL
, NULL
)) {
2521 /* -L help lists the data directories and exits. */
2522 if (list_data_dirs
) {
2523 qemu_list_data_dirs();
2528 static void qemu_maybe_daemonize(const char *pid_file
)
2533 rcu_disable_atfork();
2536 char *pid_file_realpath
= NULL
;
2538 if (!qemu_write_pidfile(pid_file
, &err
)) {
2539 error_reportf_err(err
, "cannot create PID file: ");
2543 pid_file_realpath
= g_malloc0(PATH_MAX
);
2544 if (!realpath(pid_file
, pid_file_realpath
)) {
2545 if (errno
!= ENOENT
) {
2546 warn_report("not removing PID file on exit: cannot resolve PID "
2547 "file path: %s: %s", pid_file
, strerror(errno
));
2552 qemu_unlink_pidfile_notifier
= (struct UnlinkPidfileNotifier
) {
2554 .notify
= qemu_unlink_pidfile
,
2556 .pid_file_realpath
= pid_file_realpath
,
2558 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
.notifier
);
2562 static void qemu_init_displays(void)
2566 /* init local displays */
2567 ds
= init_displaystate();
2568 qemu_display_init(ds
, &dpy
);
2570 /* must be after terminal init, SDL library changes signal handlers */
2571 os_setup_signal_handling();
2573 /* init remote displays */
2575 qemu_opts_foreach(qemu_find_opts("vnc"),
2576 vnc_init_func
, NULL
, &error_fatal
);
2580 qemu_spice
.display_init();
2584 static void qemu_init_board(void)
2586 /* process plugin before CPUs are created, but once -smp has been parsed */
2587 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2589 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2590 machine_run_board_init(current_machine
, mem_path
, &error_fatal
);
2592 drive_check_orphaned();
2597 static void qemu_create_cli_devices(void)
2603 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2604 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2606 /* init USB devices */
2607 if (machine_usb(current_machine
)) {
2608 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2612 /* init generic devices */
2613 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2614 qemu_opts_foreach(qemu_find_opts("device"),
2615 device_init_func
, NULL
, &error_fatal
);
2616 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2618 loc_push_restore(&opt
->loc
);
2620 * TODO Eventually we should call qmp_device_add() here to make sure it
2621 * behaves the same, but QMP still has to accept incorrectly typed
2622 * options until libvirt is fixed and we want to be strict on the CLI
2623 * from the start, so call qdev_device_add_from_qdict() directly for
2626 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2627 object_unref(OBJECT(dev
));
2630 rom_reset_order_override();
2633 static void qemu_machine_creation_done(void)
2635 MachineState
*machine
= MACHINE(qdev_get_machine());
2637 /* Did we create any drives that we failed to create a device for? */
2638 drive_check_orphaned();
2640 /* Don't warn about the default network setup that you get if
2641 * no command line -net or -netdev options are specified. There
2642 * are two cases that we would otherwise complain about:
2643 * (1) board doesn't support a NIC but the implicit "-net nic"
2645 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2646 * sets up a nic that isn't connected to anything.
2648 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2649 net_check_clients();
2652 qdev_prop_check_globals();
2654 qdev_machine_creation_done();
2658 * Verify that Confidential Guest Support has actually been initialized
2660 assert(machine
->cgs
->ready
);
2663 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2666 if (!vga_interface_created
&& !default_vga
&&
2667 vga_interface_type
!= VGA_NONE
) {
2668 warn_report("A -vga option was passed but this machine "
2669 "type does not use that option; "
2670 "No VGA device has been created");
2674 void qmp_x_exit_preconfig(Error
**errp
)
2676 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2677 error_setg(errp
, "The command is permitted only before machine initialization");
2682 qemu_create_cli_devices();
2683 qemu_machine_creation_done();
2686 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2688 if (replay_mode
!= REPLAY_MODE_NONE
) {
2689 replay_vmstate_init();
2693 Error
*local_err
= NULL
;
2694 if (strcmp(incoming
, "defer") != 0) {
2695 qmp_migrate_incoming(incoming
, &local_err
);
2697 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2701 } else if (autostart
) {
2706 void qemu_init(int argc
, char **argv
)
2709 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2710 QemuOptsList
*olist
;
2713 MachineClass
*machine_class
;
2714 bool userconfig
= true;
2715 FILE *vmstate_dump_file
= NULL
;
2717 qemu_add_opts(&qemu_drive_opts
);
2718 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2719 qemu_add_drive_opts(&qemu_common_drive_opts
);
2720 qemu_add_drive_opts(&qemu_drive_opts
);
2721 qemu_add_drive_opts(&bdrv_runtime_opts
);
2722 qemu_add_opts(&qemu_chardev_opts
);
2723 qemu_add_opts(&qemu_device_opts
);
2724 qemu_add_opts(&qemu_netdev_opts
);
2725 qemu_add_opts(&qemu_nic_opts
);
2726 qemu_add_opts(&qemu_net_opts
);
2727 qemu_add_opts(&qemu_rtc_opts
);
2728 qemu_add_opts(&qemu_global_opts
);
2729 qemu_add_opts(&qemu_mon_opts
);
2730 qemu_add_opts(&qemu_trace_opts
);
2731 qemu_plugin_add_opts();
2732 qemu_add_opts(&qemu_option_rom_opts
);
2733 qemu_add_opts(&qemu_accel_opts
);
2734 qemu_add_opts(&qemu_mem_opts
);
2735 qemu_add_opts(&qemu_smp_opts
);
2736 qemu_add_opts(&qemu_boot_opts
);
2737 qemu_add_opts(&qemu_add_fd_opts
);
2738 qemu_add_opts(&qemu_object_opts
);
2739 qemu_add_opts(&qemu_tpmdev_opts
);
2740 qemu_add_opts(&qemu_overcommit_opts
);
2741 qemu_add_opts(&qemu_msg_opts
);
2742 qemu_add_opts(&qemu_name_opts
);
2743 qemu_add_opts(&qemu_numa_opts
);
2744 qemu_add_opts(&qemu_icount_opts
);
2745 qemu_add_opts(&qemu_semihosting_config_opts
);
2746 qemu_add_opts(&qemu_fw_cfg_opts
);
2747 qemu_add_opts(&qemu_action_opts
);
2748 qemu_add_run_with_opts();
2749 module_call_init(MODULE_INIT_OPTS
);
2751 error_init(argv
[0]);
2752 qemu_init_exec_dir(argv
[0]);
2754 qemu_init_arch_modules();
2756 qemu_init_subsystems();
2758 /* first pass of option parsing */
2760 while (optind
< argc
) {
2761 if (argv
[optind
][0] != '-') {
2765 const QEMUOption
*popt
;
2767 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2768 switch (popt
->index
) {
2769 case QEMU_OPTION_nouserconfig
:
2776 machine_opts_dict
= qdict_new();
2778 qemu_read_default_config_file(&error_fatal
);
2781 /* second pass of option parsing */
2786 if (argv
[optind
][0] != '-') {
2787 loc_set_cmdline(argv
, optind
, 1);
2788 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2790 const QEMUOption
*popt
;
2792 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2793 if (!(popt
->arch_mask
& arch_type
)) {
2794 error_report("Option not supported for this target");
2797 switch(popt
->index
) {
2798 case QEMU_OPTION_cpu
:
2799 /* hw initialization will check this */
2800 cpu_option
= optarg
;
2802 case QEMU_OPTION_hda
:
2803 case QEMU_OPTION_hdb
:
2804 case QEMU_OPTION_hdc
:
2805 case QEMU_OPTION_hdd
:
2806 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2809 case QEMU_OPTION_blockdev
:
2812 BlockdevOptionsQueueEntry
*bdo
;
2814 v
= qobject_input_visitor_new_str(optarg
, "driver",
2817 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2818 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2821 loc_save(&bdo
->loc
);
2822 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2825 case QEMU_OPTION_drive
:
2826 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2832 case QEMU_OPTION_set
:
2833 qemu_set_option(optarg
, &error_fatal
);
2835 case QEMU_OPTION_global
:
2836 if (qemu_global_option(optarg
) != 0)
2839 case QEMU_OPTION_mtdblock
:
2840 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2842 case QEMU_OPTION_sd
:
2843 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2845 case QEMU_OPTION_pflash
:
2846 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2848 case QEMU_OPTION_snapshot
:
2850 replay_add_blocker("-snapshot");
2852 case QEMU_OPTION_numa
:
2853 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2859 case QEMU_OPTION_display
:
2860 parse_display(optarg
);
2862 case QEMU_OPTION_nographic
:
2863 qdict_put_str(machine_opts_dict
, "graphics", "off");
2865 dpy
.type
= DISPLAY_TYPE_NONE
;
2867 case QEMU_OPTION_portrait
:
2868 graphic_rotate
= 90;
2870 case QEMU_OPTION_rotate
:
2871 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2872 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2873 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2874 error_report("only 90, 180, 270 deg rotation is available");
2878 case QEMU_OPTION_kernel
:
2879 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2881 case QEMU_OPTION_initrd
:
2882 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2884 case QEMU_OPTION_append
:
2885 qdict_put_str(machine_opts_dict
, "append", optarg
);
2887 case QEMU_OPTION_dtb
:
2888 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2890 case QEMU_OPTION_cdrom
:
2891 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2893 case QEMU_OPTION_boot
:
2894 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2896 case QEMU_OPTION_fda
:
2897 case QEMU_OPTION_fdb
:
2898 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2901 case QEMU_OPTION_no_fd_bootchk
:
2904 case QEMU_OPTION_netdev
:
2906 if (netdev_is_modern(optarg
)) {
2907 netdev_parse_modern(optarg
);
2909 net_client_parse(qemu_find_opts("netdev"), optarg
);
2912 case QEMU_OPTION_nic
:
2914 net_client_parse(qemu_find_opts("nic"), optarg
);
2916 case QEMU_OPTION_net
:
2918 net_client_parse(qemu_find_opts("net"), optarg
);
2920 #ifdef CONFIG_LIBISCSI
2921 case QEMU_OPTION_iscsi
:
2922 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2929 case QEMU_OPTION_audio_help
:
2930 audio_legacy_help();
2933 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
);
2942 if (help
|| (qdict_haskey(dict
, "driver") &&
2943 is_help_option(qdict_get_str(dict
, "driver")))) {
2947 if (!qdict_haskey(dict
, "id")) {
2948 qdict_put_str(dict
, "id", "audiodev0");
2950 if (!qdict_haskey(dict
, "model")) {
2951 error_setg(&error_fatal
, "Parameter 'model' is missing");
2953 model
= g_strdup(qdict_get_str(dict
, "model"));
2954 qdict_del(dict
, "model");
2955 if (is_help_option(model
)) {
2956 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
);
2964 select_soundhw(model
, dev
->id
);
2971 case QEMU_OPTION_version
:
2976 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg
, true);
2982 case QEMU_OPTION_tpmdev
:
2983 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
2988 case QEMU_OPTION_mempath
:
2991 case QEMU_OPTION_mem_prealloc
:
3000 case QEMU_OPTION_DFILTER
:
3001 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3003 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3004 case QEMU_OPTION_perfmap
:
3005 perf_enable_perfmap();
3007 case QEMU_OPTION_jitdump
:
3008 perf_enable_jitdump();
3011 case QEMU_OPTION_seed
:
3012 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3015 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3017 case QEMU_OPTION_gdb
:
3018 add_device_config(DEV_GDB
, optarg
);
3021 if (is_help_option(optarg
)) {
3022 list_data_dirs
= true;
3024 qemu_add_data_dir(g_strdup(optarg
));
3027 case QEMU_OPTION_bios
:
3028 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
3030 case QEMU_OPTION_singlestep
:
3031 opt_one_insn_per_tb
= true;
3037 keyboard_layout
= optarg
;
3039 case QEMU_OPTION_vga
:
3048 w
= strtol(p
, (char **)&p
, 10);
3051 error_report("invalid resolution or depth");
3057 h
= strtol(p
, (char **)&p
, 10);
3062 depth
= strtol(p
, (char **)&p
, 10);
3063 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3064 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3065 depth
!= 24 && depth
!= 32)
3067 } else if (*p
== '\0') {
3068 depth
= graphic_depth
;
3075 graphic_depth
= depth
;
3078 case QEMU_OPTION_echr
:
3081 term_escape_char
= strtol(optarg
, &r
, 0);
3083 printf("Bad argument to echr\n");
3086 case QEMU_OPTION_monitor
:
3087 default_monitor
= 0;
3088 if (strncmp(optarg
, "none", 4)) {
3089 monitor_parse(optarg
, "readline", false);
3092 case QEMU_OPTION_qmp
:
3093 monitor_parse(optarg
, "control", false);
3094 default_monitor
= 0;
3096 case QEMU_OPTION_qmp_pretty
:
3097 monitor_parse(optarg
, "control", true);
3098 default_monitor
= 0;
3100 case QEMU_OPTION_mon
:
3101 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3106 default_monitor
= 0;
3108 case QEMU_OPTION_chardev
:
3109 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3115 case QEMU_OPTION_fsdev
:
3116 olist
= qemu_find_opts("fsdev");
3118 error_report("fsdev support is disabled");
3121 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3126 case QEMU_OPTION_virtfs
: {
3129 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3132 olist
= qemu_find_opts("virtfs");
3134 error_report("virtfs support is disabled");
3137 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3142 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3143 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3144 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3147 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3148 qemu_opts_id(opts
) ?:
3149 qemu_opt_get(opts
, "mount_tag"),
3152 error_report("duplicate or invalid fsdev id: %s",
3153 qemu_opt_get(opts
, "mount_tag"));
3157 writeout
= qemu_opt_get(opts
, "writeout");
3159 #ifdef CONFIG_SYNC_FILE_RANGE
3160 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3162 error_report("writeout=immediate not supported "
3163 "on this platform");
3167 qemu_opt_set(fsdev
, "fsdriver",
3168 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3169 path
= qemu_opt_get(opts
, "path");
3171 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3173 security_model
= qemu_opt_get(opts
, "security_model");
3174 if (security_model
) {
3175 qemu_opt_set(fsdev
, "security_model", security_model
,
3178 socket
= qemu_opt_get(opts
, "socket");
3180 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3182 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3184 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3187 qemu_opt_set_bool(fsdev
, "readonly",
3188 qemu_opt_get_bool(opts
, "readonly", 0),
3190 multidevs
= qemu_opt_get(opts
, "multidevs");
3192 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3194 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3196 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3197 qemu_opt_set(device
, "fsdev",
3198 qemu_opts_id(fsdev
), &error_abort
);
3199 qemu_opt_set(device
, "mount_tag",
3200 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3203 case QEMU_OPTION_serial
:
3204 add_device_config(DEV_SERIAL
, optarg
);
3206 if (strncmp(optarg
, "mon:", 4) == 0) {
3207 default_monitor
= 0;
3210 case QEMU_OPTION_action
:
3211 olist
= qemu_find_opts("action");
3212 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3216 case QEMU_OPTION_watchdog_action
: {
3217 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3218 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3221 case QEMU_OPTION_parallel
:
3222 add_device_config(DEV_PARALLEL
, optarg
);
3223 default_parallel
= 0;
3224 if (strncmp(optarg
, "mon:", 4) == 0) {
3225 default_monitor
= 0;
3228 case QEMU_OPTION_debugcon
:
3229 add_device_config(DEV_DEBUGCON
, optarg
);
3231 case QEMU_OPTION_loadvm
:
3234 case QEMU_OPTION_full_screen
:
3235 dpy
.has_full_screen
= true;
3236 dpy
.full_screen
= true;
3238 case QEMU_OPTION_pidfile
:
3241 case QEMU_OPTION_win2k_hack
:
3242 win2k_install_hack
= 1;
3244 case QEMU_OPTION_acpitable
:
3245 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3250 acpi_table_add(opts
, &error_fatal
);
3252 case QEMU_OPTION_smbios
:
3253 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3258 smbios_entry_add(opts
, &error_fatal
);
3260 case QEMU_OPTION_fwcfg
:
3261 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3267 case QEMU_OPTION_preconfig
:
3268 preconfig_requested
= true;
3270 case QEMU_OPTION_enable_kvm
:
3271 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3274 case QEMU_OPTION_machine
:
3278 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3280 machine_help_func(machine_opts_dict
);
3285 case QEMU_OPTION_accel
:
3286 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3288 optarg
= qemu_opt_get(accel_opts
, "accel");
3289 if (!optarg
|| is_help_option(optarg
)) {
3290 printf("Accelerators supported in QEMU binary:\n");
3291 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3293 for (el
= accel_list
; el
; el
= el
->next
) {
3294 gchar
*typename
= g_strdup(object_class_get_name(
3295 OBJECT_CLASS(el
->data
)));
3296 /* omit qtest which is used for tests only */
3297 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3298 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3299 gchar
**optname
= g_strsplit(typename
,
3300 ACCEL_CLASS_SUFFIX
, 0);
3301 printf("%s\n", optname
[0]);
3302 g_strfreev(optname
);
3306 g_slist_free(accel_list
);
3310 case QEMU_OPTION_usb
:
3311 qdict_put_str(machine_opts_dict
, "usb", "on");
3313 case QEMU_OPTION_usbdevice
:
3314 qdict_put_str(machine_opts_dict
, "usb", "on");
3315 add_device_config(DEV_USB
, optarg
);
3317 case QEMU_OPTION_device
:
3318 if (optarg
[0] == '{') {
3319 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3320 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3321 opt
->opts
= qobject_to(QDict
, obj
);
3322 loc_save(&opt
->loc
);
3323 assert(opt
->opts
!= NULL
);
3324 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3326 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3332 case QEMU_OPTION_smp
:
3333 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3336 case QEMU_OPTION_vnc
:
3339 case QEMU_OPTION_no_acpi
:
3340 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3341 qdict_put_str(machine_opts_dict
, "acpi", "off");
3343 case QEMU_OPTION_no_hpet
:
3344 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3345 qdict_put_str(machine_opts_dict
, "hpet", "off");
3347 case QEMU_OPTION_no_reboot
:
3348 olist
= qemu_find_opts("action");
3349 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3351 case QEMU_OPTION_no_shutdown
:
3352 olist
= qemu_find_opts("action");
3353 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3355 case QEMU_OPTION_uuid
:
3356 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3357 error_report("failed to parse UUID string: wrong format");
3360 qemu_uuid_set
= true;
3362 case QEMU_OPTION_option_rom
:
3363 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3364 error_report("too many option ROMs");
3367 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3372 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3373 option_rom
[nb_option_roms
].bootindex
=
3374 qemu_opt_get_number(opts
, "bootindex", -1);
3375 if (!option_rom
[nb_option_roms
].name
) {
3376 error_report("Option ROM file is not specified");
3381 case QEMU_OPTION_semihosting
:
3382 qemu_semihosting_enable();
3384 case QEMU_OPTION_semihosting_config
:
3385 if (qemu_semihosting_config_options(optarg
) != 0) {
3389 case QEMU_OPTION_name
:
3390 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3395 /* Capture guest name if -msg guest-name is used later */
3396 error_guest_name
= qemu_opt_get(opts
, "guest");
3398 case QEMU_OPTION_prom_env
:
3399 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3400 error_report("too many prom variables");
3403 prom_envs
[nb_prom_envs
] = optarg
;
3406 case QEMU_OPTION_old_param
:
3409 case QEMU_OPTION_rtc
:
3410 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3416 case QEMU_OPTION_icount
:
3417 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3423 case QEMU_OPTION_incoming
:
3425 runstate_set(RUN_STATE_INMIGRATE
);
3429 case QEMU_OPTION_only_migratable
:
3430 only_migratable
= 1;
3432 case QEMU_OPTION_nodefaults
:
3435 case QEMU_OPTION_xen_domid
:
3436 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3437 error_report("Option not supported for this target");
3440 xen_domid
= atoi(optarg
);
3442 case QEMU_OPTION_xen_attach
:
3443 if (!(accel_find("xen"))) {
3444 error_report("Option not supported for this target");
3447 xen_mode
= XEN_ATTACH
;
3449 case QEMU_OPTION_xen_domid_restrict
:
3450 if (!(accel_find("xen"))) {
3451 error_report("Option not supported for this target");
3454 xen_domid_restrict
= true;
3456 case QEMU_OPTION_trace
:
3457 trace_opt_parse(optarg
);
3459 case QEMU_OPTION_plugin
:
3460 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3462 case QEMU_OPTION_readconfig
:
3463 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3466 case QEMU_OPTION_spice
:
3467 olist
= qemu_find_opts_err("spice", NULL
);
3469 error_report("spice support is disabled");
3472 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3479 case QEMU_OPTION_qtest
:
3480 qtest_chrdev
= optarg
;
3482 case QEMU_OPTION_qtest_log
:
3485 case QEMU_OPTION_sandbox
:
3486 olist
= qemu_find_opts("sandbox");
3488 #ifndef CONFIG_SECCOMP
3489 error_report("-sandbox support is not enabled "
3490 "in this QEMU binary");
3495 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3500 case QEMU_OPTION_add_fd
:
3502 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3508 error_report("File descriptor passing is disabled on this "
3513 case QEMU_OPTION_object
:
3514 object_option_parse(optarg
);
3516 case QEMU_OPTION_overcommit
:
3517 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3522 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3523 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3525 case QEMU_OPTION_compat
:
3527 CompatPolicy
*opts_policy
;
3530 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3533 visit_type_CompatPolicy(v
, NULL
, &opts_policy
, &error_fatal
);
3534 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts_policy
);
3536 qapi_free_CompatPolicy(opts_policy
);
3540 case QEMU_OPTION_msg
:
3541 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3546 configure_msg(opts
);
3548 case QEMU_OPTION_dump_vmstate
:
3549 if (vmstate_dump_file
) {
3550 error_report("only one '-dump-vmstate' "
3551 "option may be given");
3554 vmstate_dump_file
= fopen(optarg
, "w");
3555 if (vmstate_dump_file
== NULL
) {
3556 error_report("open %s: %s", optarg
, strerror(errno
));
3560 case QEMU_OPTION_enable_sync_profile
:
3563 case QEMU_OPTION_nouserconfig
:
3564 /* Nothing to be parsed here. Especially, do not error out below. */
3566 #if defined(CONFIG_POSIX)
3567 case QEMU_OPTION_runas
:
3568 if (!os_set_runas(optarg
)) {
3569 error_report("User \"%s\" doesn't exist"
3570 " (and is not <uid>:<gid>)",
3575 case QEMU_OPTION_chroot
:
3576 warn_report("option is deprecated,"
3577 " use '-run-with chroot=...' instead");
3578 os_set_chroot(optarg
);
3580 case QEMU_OPTION_daemonize
:
3581 os_set_daemonize(true);
3583 #if defined(CONFIG_LINUX)
3585 case QEMU_OPTION_asyncteardown
:
3586 init_async_teardown();
3589 case QEMU_OPTION_run_with
: {
3591 opts
= qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3596 #if defined(CONFIG_LINUX)
3597 if (qemu_opt_get_bool(opts
, "async-teardown", false)) {
3598 init_async_teardown();
3601 str
= qemu_opt_get(opts
, "chroot");
3607 #endif /* CONFIG_POSIX */
3610 error_report("Option not supported in this build");
3616 * Clear error location left behind by the loop.
3617 * Best done right after the loop. Do not insert code here!
3621 qemu_validate_options(machine_opts_dict
);
3622 qemu_process_sugar_options();
3625 * These options affect everything else and should be processed
3626 * before daemonizing.
3628 qemu_process_early_options();
3630 qemu_process_help_options();
3631 qemu_maybe_daemonize(pid_file
);
3634 * The trace backend must be initialized after daemonizing.
3635 * trace_init_backends() will call st_init(), which will create the
3636 * trace thread in the parent, and also register st_flush_trace_buffer()
3637 * in atexit(). This function will force the parent to wait for the
3638 * writeout thread to finish, which will not occur, and the parent
3639 * process will be left in the host.
3641 if (!trace_init_backends()) {
3646 qemu_init_main_loop(&error_fatal
);
3649 user_register_global_props();
3650 replay_configure(icount_opts
);
3652 configure_rtc(qemu_find_opts_singleton("rtc"));
3654 /* Transfer QemuOpts options into machine options */
3655 parse_memory_options();
3657 qemu_create_machine(machine_opts_dict
);
3661 qemu_disable_default_devices();
3662 qemu_create_default_devices();
3663 qemu_create_early_backends();
3665 qemu_apply_legacy_machine_options(machine_opts_dict
);
3666 qemu_apply_machine_options(machine_opts_dict
);
3667 qobject_unref(machine_opts_dict
);
3668 phase_advance(PHASE_MACHINE_CREATED
);
3671 * Note: uses machine properties such as kernel-irqchip, must run
3672 * after qemu_apply_machine_options.
3674 configure_accelerators(argv
[0]);
3675 phase_advance(PHASE_ACCEL_CREATED
);
3678 * Beware, QOM objects created before this point miss global and
3679 * compat properties.
3681 * Global properties get set up by qdev_prop_register_global(),
3682 * called from user_register_global_props(), and certain option
3683 * desugaring. Also in CPU feature desugaring (buried in
3684 * parse_cpu_option()), which happens below this point, but may
3685 * only target the CPU type, which can only be created after
3686 * parse_cpu_option() returned the type.
3688 * Machine compat properties: object_set_machine_compat_props().
3689 * Accelerator compat props: object_set_accelerator_compat_props(),
3690 * called from do_configure_accelerator().
3693 machine_class
= MACHINE_GET_CLASS(current_machine
);
3694 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3695 warn_report("Machine type '%s' is deprecated: %s",
3696 machine_class
->name
, machine_class
->deprecation_reason
);
3700 * Create backends before creating migration objects, so that it can
3701 * check against compatibilities on the backend memories (e.g. postcopy
3702 * over memory-backend-file objects).
3704 qemu_create_late_backends();
3707 * Note: creates a QOM object, must run only after global and
3708 * compat properties have been set up.
3710 migration_object_init();
3712 /* parse features once if machine provides default cpu_type */
3713 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
3715 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3717 /* NB: for machine none cpu_type could STILL be NULL here! */
3719 qemu_resolve_machine_memdev();
3720 parse_numa_opts(current_machine
);
3722 if (vmstate_dump_file
) {
3724 module_load_qom_all();
3725 dump_vmstate_json_to_file(vmstate_dump_file
);
3729 if (!preconfig_requested
) {
3730 qmp_x_exit_preconfig(&error_fatal
);
3732 qemu_init_displays();
3733 accel_setup_post(current_machine
);