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 "qapi/qobject-input-visitor.h"
90 #include "qemu/option.h"
91 #include "qemu/config-file.h"
92 #include "qemu/qemu-options.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 static void realtime_init(void)
753 if (os_mlock() < 0) {
754 error_report("locking memory failed");
761 static void configure_msg(QemuOpts
*opts
)
763 message_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
764 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
768 /***********************************************************/
771 static int usb_device_add(const char *devname
)
773 USBDevice
*dev
= NULL
;
775 if (!machine_usb(current_machine
)) {
779 dev
= usbdevice_create(devname
);
786 static int usb_parse(const char *cmdline
)
789 r
= usb_device_add(cmdline
);
791 error_report("could not add USB device '%s'", cmdline
);
796 /***********************************************************/
797 /* machine registration */
799 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
803 for (el
= machines
; el
; el
= el
->next
) {
804 MachineClass
*mc
= el
->data
;
806 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
814 static MachineClass
*find_default_machine(GSList
*machines
)
817 MachineClass
*default_machineclass
= NULL
;
819 for (el
= machines
; el
; el
= el
->next
) {
820 MachineClass
*mc
= el
->data
;
822 if (mc
->is_default
) {
823 assert(default_machineclass
== NULL
&& "Multiple default machines");
824 default_machineclass
= mc
;
828 return default_machineclass
;
831 static void version(void)
833 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
834 QEMU_COPYRIGHT
"\n");
837 static void help(int exitcode
)
840 printf("usage: %s [options] [disk_image]\n\n"
841 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
844 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
845 if ((arch_mask) & arch_type) \
846 fputs(opt_help, stdout);
848 #define ARCHHEADING(text, arch_mask) \
849 if ((arch_mask) & arch_type) \
850 puts(stringify(text));
852 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
854 #include "qemu-options.def"
856 printf("\nDuring emulation, the following keys are useful:\n"
857 "ctrl-alt-f toggle full screen\n"
858 "ctrl-alt-n switch to virtual console 'n'\n"
859 "ctrl-alt toggle mouse and keyboard grab\n"
861 "When using -nographic, press 'ctrl-a h' to get some help.\n"
863 QEMU_HELP_BOTTOM
"\n");
868 #define HAS_ARG 0x0001
870 typedef struct QEMUOption
{
877 static const QEMUOption qemu_options
[] = {
878 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 { option, opt_arg, opt_enum, arch_mask },
882 #define DEFHEADING(text)
883 #define ARCHHEADING(text, arch_mask)
885 #include "qemu-options.def"
886 { /* end of list */ }
889 typedef struct VGAInterfaceInfo
{
890 const char *opt_name
; /* option name */
891 const char *name
; /* human-readable name */
892 /* Class names indicating that support is available.
893 * If no class is specified, the interface is always available */
894 const char *class_names
[2];
897 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
900 .name
= "no graphic card",
904 .name
= "standard VGA",
905 .class_names
= { "VGA", "isa-vga" },
908 .opt_name
= "cirrus",
909 .name
= "Cirrus VGA",
910 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
913 .opt_name
= "vmware",
914 .name
= "VMWare SVGA",
915 .class_names
= { "vmware-svga" },
918 .opt_name
= "virtio",
919 .name
= "Virtio VGA",
920 .class_names
= { "virtio-vga" },
925 .class_names
= { "qxl-vga" },
929 .name
= "TCX framebuffer",
930 .class_names
= { "sun-tcx" },
934 .name
= "CG3 framebuffer",
935 .class_names
= { "cgthree" },
937 #ifdef CONFIG_XEN_BACKEND
940 .name
= "Xen paravirtualized framebuffer",
945 static bool vga_interface_available(VGAInterfaceType t
)
947 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
949 assert(t
< VGA_TYPE_MAX
);
950 return !ti
->class_names
[0] ||
951 module_object_class_by_name(ti
->class_names
[0]) ||
952 module_object_class_by_name(ti
->class_names
[1]);
956 get_default_vga_model(const MachineClass
*machine_class
)
958 if (machine_class
->default_display
) {
959 for (int t
= 0; t
< VGA_TYPE_MAX
; t
++) {
960 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
962 if (ti
->opt_name
&& vga_interface_available(t
) &&
963 g_str_equal(ti
->opt_name
, machine_class
->default_display
)) {
964 return machine_class
->default_display
;
968 warn_report_once("Default display '%s' is not available in this binary",
969 machine_class
->default_display
);
971 } else if (vga_interface_available(VGA_CIRRUS
)) {
973 } else if (vga_interface_available(VGA_STD
)) {
980 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
985 if (g_str_equal(p
, "help")) {
986 const char *def
= get_default_vga_model(machine_class
);
988 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
989 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
991 if (vga_interface_available(t
) && ti
->opt_name
) {
992 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
993 (def
&& g_str_equal(ti
->opt_name
, def
)) ?
1000 assert(vga_interface_type
== VGA_NONE
);
1001 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1002 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1003 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1004 if (!vga_interface_available(t
)) {
1005 error_report("%s not available", ti
->name
);
1008 vga_interface_type
= t
;
1012 if (t
== VGA_TYPE_MAX
) {
1014 error_report("unknown vga type: %s", p
);
1018 const char *nextopt
;
1020 if (strstart(opts
, ",retrace=", &nextopt
)) {
1022 if (strstart(opts
, "dumb", &nextopt
))
1023 vga_retrace_method
= VGA_RETRACE_DUMB
;
1024 else if (strstart(opts
, "precise", &nextopt
))
1025 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1026 else goto invalid_vga
;
1027 } else goto invalid_vga
;
1032 static void parse_display_qapi(const char *optarg
)
1034 DisplayOptions
*opts
;
1037 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1039 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1040 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1042 qapi_free_DisplayOptions(opts
);
1046 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1048 return QAPI_CLONE(DisplayOptions
, &dpy
);
1051 static void parse_display(const char *p
)
1055 if (is_help_option(p
)) {
1056 qemu_display_help();
1060 if (strstart(p
, "vnc", &opts
)) {
1062 * vnc isn't a (local) DisplayType but a protocol for remote
1066 vnc_parse(opts
+ 1);
1068 error_report("VNC requires a display argument vnc=<display>");
1072 parse_display_qapi(p
);
1076 static inline bool nonempty_str(const char *str
)
1081 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1085 const char *name
, *file
, *str
, *gen_id
;
1086 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1088 if (fw_cfg
== NULL
) {
1089 error_setg(errp
, "fw_cfg device not available");
1092 name
= qemu_opt_get(opts
, "name");
1093 file
= qemu_opt_get(opts
, "file");
1094 str
= qemu_opt_get(opts
, "string");
1095 gen_id
= qemu_opt_get(opts
, "gen_id");
1097 /* we need the name, and exactly one of: file, content string, gen_id */
1098 if (!nonempty_str(name
) ||
1099 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1100 error_setg(errp
, "name, plus exactly one of file,"
1101 " string and gen_id, are needed");
1104 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1105 error_setg(errp
, "name too long (max. %d char)",
1106 FW_CFG_MAX_FILE_PATH
- 1);
1109 if (nonempty_str(gen_id
)) {
1111 * In this particular case where the content is populated
1112 * internally, the "etc/" namespace protection is relaxed,
1113 * so do not emit a warning.
1115 } else if (strncmp(name
, "opt/", 4) != 0) {
1116 warn_report("externally provided fw_cfg item names "
1117 "should be prefixed with \"opt/\"");
1119 if (nonempty_str(str
)) {
1120 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1121 buf
= g_memdup(str
, size
);
1122 } else if (nonempty_str(gen_id
)) {
1123 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1129 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1130 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1135 /* For legacy, keep user files in a specific global order. */
1136 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1137 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1138 fw_cfg_reset_order_override(fw_cfg
);
1142 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1144 return qdev_device_help(opts
);
1147 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1151 dev
= qdev_device_add(opts
, errp
);
1152 if (!dev
&& *errp
) {
1153 error_report_err(*errp
);
1156 object_unref(OBJECT(dev
));
1161 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1163 Error
*local_err
= NULL
;
1165 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1167 error_propagate(errp
, local_err
);
1175 #ifdef CONFIG_VIRTFS
1176 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1178 return qemu_fsdev_add(opts
, errp
);
1182 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1184 return monitor_init_opts(opts
, errp
);
1187 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
1189 static int monitor_device_index
= 0;
1194 if (strstart(optarg
, "chardev:", &p
)) {
1195 snprintf(label
, sizeof(label
), "%s", p
);
1197 snprintf(label
, sizeof(label
), "compat_monitor%d",
1198 monitor_device_index
);
1199 opts
= qemu_chr_parse_compat(label
, optarg
, true);
1201 error_report("parse error: %s", optarg
);
1206 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1207 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1208 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1209 if (!strcmp(mode
, "control")) {
1210 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1212 assert(pretty
== false);
1214 monitor_device_index
++;
1217 struct device_config
{
1219 DEV_USB
, /* -usbdevice */
1220 DEV_SERIAL
, /* -serial */
1221 DEV_PARALLEL
, /* -parallel */
1222 DEV_DEBUGCON
, /* -debugcon */
1223 DEV_GDB
, /* -gdb, -s */
1224 DEV_SCLP
, /* s390 sclp */
1226 const char *cmdline
;
1228 QTAILQ_ENTRY(device_config
) next
;
1231 static QTAILQ_HEAD(, device_config
) device_configs
=
1232 QTAILQ_HEAD_INITIALIZER(device_configs
);
1234 static void add_device_config(int type
, const char *cmdline
)
1236 struct device_config
*conf
;
1238 conf
= g_malloc0(sizeof(*conf
));
1240 conf
->cmdline
= cmdline
;
1241 loc_save(&conf
->loc
);
1242 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1245 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1247 struct device_config
*conf
;
1250 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1251 if (conf
->type
!= type
)
1253 loc_push_restore(&conf
->loc
);
1254 rc
= func(conf
->cmdline
);
1255 loc_pop(&conf
->loc
);
1263 static void qemu_disable_default_devices(void)
1265 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1267 default_driver_check_json();
1268 qemu_opts_foreach(qemu_find_opts("device"),
1269 default_driver_check
, NULL
, NULL
);
1270 qemu_opts_foreach(qemu_find_opts("global"),
1271 default_driver_check
, NULL
, NULL
);
1273 if (!vga_model
&& !default_vga
) {
1274 vga_interface_type
= VGA_DEVICE
;
1275 vga_interface_created
= true;
1277 if (!has_defaults
|| machine_class
->no_serial
) {
1280 if (!has_defaults
|| machine_class
->no_parallel
) {
1281 default_parallel
= 0;
1283 if (!has_defaults
|| machine_class
->no_floppy
) {
1286 if (!has_defaults
|| machine_class
->no_cdrom
) {
1289 if (!has_defaults
|| machine_class
->no_sdcard
) {
1292 if (!has_defaults
) {
1293 default_monitor
= 0;
1297 if (default_net
&& machine_class
->default_nic
&&
1298 !module_object_class_by_name(machine_class
->default_nic
)) {
1299 warn_report("Default NIC '%s' is not available in this binary",
1300 machine_class
->default_nic
);
1306 static void qemu_create_default_devices(void)
1308 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1310 if (is_daemonized()) {
1311 /* According to documentation and historically, -nographic redirects
1312 * serial port, parallel port and monitor to stdio, which does not work
1313 * with -daemonize. We can redirect these to null instead, but since
1314 * -nographic is legacy, let's just error out.
1315 * We disallow -nographic only if all other ports are not redirected
1316 * explicitly, to not break existing legacy setups which uses
1317 * -nographic _and_ redirects all ports explicitly - this is valid
1318 * usage, -nographic is just a no-op in this case.
1321 && (default_parallel
|| default_serial
|| default_monitor
)) {
1322 error_report("-nographic cannot be used with -daemonize");
1328 if (default_parallel
)
1329 add_device_config(DEV_PARALLEL
, "null");
1330 if (default_serial
&& default_monitor
) {
1331 add_device_config(DEV_SERIAL
, "mon:stdio");
1334 add_device_config(DEV_SERIAL
, "stdio");
1335 if (default_monitor
)
1336 monitor_parse("stdio", "readline", false);
1340 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
1341 if (default_parallel
)
1342 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
1343 if (default_monitor
)
1344 monitor_parse("vc:80Cx24C", "readline", false);
1348 QemuOptsList
*net
= qemu_find_opts("net");
1349 qemu_opts_parse(net
, "nic", true, &error_abort
);
1351 qemu_opts_parse(net
, "user", true, &error_abort
);
1355 #if defined(CONFIG_VNC)
1356 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
1360 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1361 if (!qemu_display_find_default(&dpy
)) {
1362 dpy
.type
= DISPLAY_TYPE_NONE
;
1363 #if defined(CONFIG_VNC)
1364 vnc_parse("localhost:0,to=99,id=default");
1368 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1369 dpy
.type
= DISPLAY_TYPE_NONE
;
1372 /* If no default VGA is requested, the default is "none". */
1374 vga_model
= get_default_vga_model(machine_class
);
1377 select_vgahw(machine_class
, vga_model
);
1381 static int serial_parse(const char *devname
)
1383 int index
= num_serial_hds
;
1386 if (strcmp(devname
, "none") == 0)
1388 snprintf(label
, sizeof(label
), "serial%d", index
);
1389 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1391 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1392 if (!serial_hds
[index
]) {
1393 error_report("could not connect serial device"
1394 " to character backend '%s'", devname
);
1401 Chardev
*serial_hd(int i
)
1404 if (i
< num_serial_hds
) {
1405 return serial_hds
[i
];
1410 static int parallel_parse(const char *devname
)
1412 static int index
= 0;
1415 if (strcmp(devname
, "none") == 0)
1417 if (index
== MAX_PARALLEL_PORTS
) {
1418 error_report("too many parallel ports");
1421 snprintf(label
, sizeof(label
), "parallel%d", index
);
1422 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1423 if (!parallel_hds
[index
]) {
1424 error_report("could not connect parallel device"
1425 " to character backend '%s'", devname
);
1432 static int debugcon_parse(const char *devname
)
1436 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1437 error_report("invalid character backend '%s'", devname
);
1440 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1442 error_report("already have a debugcon device");
1445 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1446 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1450 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1452 const MachineClass
*mc1
= a
, *mc2
= b
;
1455 if (mc1
->family
== NULL
) {
1456 if (mc2
->family
== NULL
) {
1457 /* Compare standalone machine types against each other; they sort
1458 * in increasing order.
1460 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1461 object_class_get_name(OBJECT_CLASS(mc2
)));
1464 /* Standalone machine types sort after families. */
1468 if (mc2
->family
== NULL
) {
1469 /* Families sort before standalone machine types. */
1473 /* Families sort between each other alphabetically increasingly. */
1474 res
= strcmp(mc1
->family
, mc2
->family
);
1479 /* Within the same family, machine types sort in decreasing order. */
1480 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1481 object_class_get_name(OBJECT_CLASS(mc1
)));
1484 static void machine_help_func(const QDict
*qdict
)
1486 GSList
*machines
, *el
;
1487 const char *type
= qdict_get_try_str(qdict
, "type");
1489 machines
= object_class_get_list(TYPE_MACHINE
, false);
1491 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1492 if (machine_class
) {
1493 type_print_class_properties(object_class_get_name(machine_class
));
1498 printf("Supported machines are:\n");
1499 machines
= g_slist_sort(machines
, machine_class_cmp
);
1500 for (el
= machines
; el
; el
= el
->next
) {
1501 MachineClass
*mc
= el
->data
;
1503 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1505 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1506 mc
->is_default
? " (default)" : "",
1507 mc
->deprecation_reason
? " (deprecated)" : "");
1512 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1517 /* Preserve the caller's reference to prop. */
1519 qdict_put(opts
, propname
, prop
);
1520 keyval_merge(machine_opts_dict
, opts
, errp
);
1521 qobject_unref(opts
);
1525 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1531 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1533 qemu_opts_print_help(opts_list
, true);
1536 machine_merge_property(propname
, prop
, &error_fatal
);
1537 qobject_unref(prop
);
1540 static const char *pid_file
;
1541 struct UnlinkPidfileNotifier
{
1543 char *pid_file_realpath
;
1545 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier
;
1547 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1549 struct UnlinkPidfileNotifier
*upn
;
1551 upn
= DO_UPCAST(struct UnlinkPidfileNotifier
, notifier
, n
);
1552 unlink(upn
->pid_file_realpath
);
1555 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1556 const char **poptarg
, int *poptind
)
1558 const QEMUOption
*popt
;
1559 int optind
= *poptind
;
1560 char *r
= argv
[optind
];
1563 loc_set_cmdline(argv
, optind
, 1);
1565 /* Treat --foo the same as -foo. */
1568 popt
= qemu_options
;
1571 error_report("invalid option");
1574 if (!strcmp(popt
->name
, r
+ 1))
1578 if (popt
->flags
& HAS_ARG
) {
1579 if (optind
>= argc
) {
1580 error_report("requires an argument");
1583 optarg
= argv
[optind
++];
1584 loc_set_cmdline(argv
, optind
- 2, 2);
1595 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1597 const char *optarg
= qdict_get_try_str(qdict
, "type");
1598 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1599 MachineClass
*machine_class
;
1600 Error
*local_err
= NULL
;
1603 machine_class
= find_machine(optarg
, machines
);
1604 qdict_del(qdict
, "type");
1605 if (!machine_class
) {
1606 error_setg(&local_err
, "unsupported machine type");
1609 machine_class
= find_default_machine(machines
);
1610 if (!machine_class
) {
1611 error_setg(&local_err
, "No machine specified, and there is no default");
1615 g_slist_free(machines
);
1617 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1618 error_propagate(errp
, local_err
);
1620 return machine_class
;
1623 static int object_parse_property_opt(Object
*obj
,
1624 const char *name
, const char *value
,
1625 const char *skip
, Error
**errp
)
1627 if (g_str_equal(name
, skip
)) {
1631 if (!object_property_parse(obj
, name
, value
, errp
)) {
1638 /* *Non*recursively replace underscores with dashes in QDict keys. */
1639 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1641 const QDictEntry
*ent
, *next
;
1644 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1645 g_autofree
char *new_key
= NULL
;
1647 next
= qdict_next(qdict
, ent
);
1648 if (!strchr(ent
->key
, '_')) {
1651 new_key
= g_strdup(ent
->key
);
1652 for (p
= new_key
; *p
; p
++) {
1657 if (qdict_haskey(qdict
, new_key
)) {
1658 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1661 qobject_ref(ent
->value
);
1662 qdict_put_obj(qdict
, new_key
, ent
->value
);
1663 qdict_del(qdict
, ent
->key
);
1667 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1672 keyval_dashify(qdict
, &error_fatal
);
1674 /* Legacy options do not correspond to MachineState properties. */
1675 value
= qdict_get_try_str(qdict
, "accel");
1677 accelerators
= g_strdup(value
);
1678 qdict_del(qdict
, "accel");
1681 value
= qdict_get_try_str(qdict
, "igd-passthru");
1683 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1685 qdict_del(qdict
, "igd-passthru");
1688 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1690 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1692 qdict_del(qdict
, "kvm-shadow-mem");
1695 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1697 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1699 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1701 qdict_del(qdict
, "kernel-irqchip");
1704 value
= qdict_get_try_str(qdict
, "memory-backend");
1707 error_report("'-mem-path' can't be used together with"
1708 "'-machine memory-backend'");
1712 /* Resolved later. */
1713 ram_memdev_id
= g_strdup(value
);
1714 qdict_del(qdict
, "memory-backend");
1717 prop
= qdict_get(qdict
, "memory");
1719 have_custom_ram_size
=
1720 qobject_type(prop
) == QTYPE_QDICT
&&
1721 qdict_haskey(qobject_to(QDict
, prop
), "size");
1725 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1727 ObjectOption
*opt
, *next
;
1729 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1730 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1731 if (type_opt_predicate(type
)) {
1732 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1733 qapi_free_ObjectOptions(opt
->opts
);
1734 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1740 static void object_option_add_visitor(Visitor
*v
)
1742 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1743 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1744 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1747 static void object_option_parse(const char *optarg
)
1753 if (optarg
[0] == '{') {
1754 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
1756 v
= qobject_input_visitor_new(obj
);
1759 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1765 type
= qemu_opt_get(opts
, "qom-type");
1767 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1769 if (user_creatable_print_help(type
, opts
)) {
1773 v
= opts_visitor_new(opts
);
1776 object_option_add_visitor(v
);
1781 * Very early object creation, before the sandbox options have been activated.
1783 static bool object_create_pre_sandbox(const char *type
)
1786 * Objects should in general not get initialized "too early" without
1787 * a reason. If you add one, state the reason in a comment!
1791 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1792 * affinity of threads.
1794 if (g_str_equal(type
, "thread-context")) {
1802 * Initial object creation happens before all other
1803 * QEMU data types are created. The majority of objects
1804 * can be created at this point. The rng-egd object
1805 * cannot be created here, as it depends on the chardev
1808 static bool object_create_early(const char *type
)
1811 * Objects should not be made "delayed" without a reason. If you
1812 * add one, state the reason in a comment!
1815 /* Reason: already created. */
1816 if (object_create_pre_sandbox(type
)) {
1820 /* Reason: property "chardev" */
1821 if (g_str_equal(type
, "rng-egd") ||
1822 g_str_equal(type
, "qtest")) {
1826 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1827 /* Reason: cryptodev-vhost-user property "chardev" */
1828 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1833 /* Reason: vhost-user-blk-server property "node-name" */
1834 if (g_str_equal(type
, "vhost-user-blk-server")) {
1838 * Reason: filter-* property "netdev" etc.
1840 if (g_str_equal(type
, "filter-buffer") ||
1841 g_str_equal(type
, "filter-dump") ||
1842 g_str_equal(type
, "filter-mirror") ||
1843 g_str_equal(type
, "filter-redirector") ||
1844 g_str_equal(type
, "colo-compare") ||
1845 g_str_equal(type
, "filter-rewriter") ||
1846 g_str_equal(type
, "filter-replay")) {
1851 * Allocation of large amounts of memory may delay
1852 * chardev initialization for too long, and trigger timeouts
1853 * on software that waits for a monitor socket to be created
1856 if (g_str_has_prefix(type
, "memory-backend-")) {
1863 static void qemu_apply_machine_options(QDict
*qdict
)
1865 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1867 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1868 /* fall back to the -kernel/-append */
1869 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1872 if (current_machine
->smp
.cpus
> 1) {
1873 replay_add_blocker("smp");
1877 static void qemu_create_early_backends(void)
1879 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1880 #if defined(CONFIG_SDL)
1881 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1883 const bool use_sdl
= false;
1885 #if defined(CONFIG_GTK)
1886 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1888 const bool use_gtk
= false;
1891 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1892 error_report("window-close is only valid for GTK and SDL, "
1896 qemu_display_early_init(&dpy
);
1897 qemu_console_early_init();
1899 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1900 #if defined(CONFIG_OPENGL)
1901 error_report("OpenGL is not supported by the display");
1903 error_report("OpenGL support is disabled");
1908 object_option_foreach_add(object_create_early
);
1910 /* spice needs the timers to be initialized by this point */
1911 /* spice must initialize before audio as it changes the default audiodev */
1912 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1915 qemu_opts_foreach(qemu_find_opts("chardev"),
1916 chardev_init_func
, NULL
, &error_fatal
);
1918 #ifdef CONFIG_VIRTFS
1919 qemu_opts_foreach(qemu_find_opts("fsdev"),
1920 fsdev_init_func
, NULL
, &error_fatal
);
1924 * Note: we need to create audio and block backends before
1925 * setting machine properties, so they can be referred to.
1927 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1928 if (!audio_init_audiodevs()) {
1935 * The remainder of object creation happens after the
1936 * creation of chardev, fsdev, net clients and device data types.
1938 static bool object_create_late(const char *type
)
1940 return !object_create_early(type
) && !object_create_pre_sandbox(type
);
1943 static void qemu_create_late_backends(void)
1946 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
1951 object_option_foreach_add(object_create_late
);
1953 if (tpm_init() < 0) {
1957 qemu_opts_foreach(qemu_find_opts("mon"),
1958 mon_init_func
, NULL
, &error_fatal
);
1960 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
1962 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
1964 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
1967 /* now chardevs have been created we may have semihosting to connect */
1968 qemu_semihosting_chardev_init();
1971 static void qemu_resolve_machine_memdev(void)
1973 if (ram_memdev_id
) {
1975 ram_addr_t backend_size
;
1977 backend
= object_resolve_path_type(ram_memdev_id
,
1978 TYPE_MEMORY_BACKEND
, NULL
);
1980 error_report("Memory backend '%s' not found", ram_memdev_id
);
1983 if (!have_custom_ram_size
) {
1984 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
1985 current_machine
->ram_size
= backend_size
;
1987 object_property_set_link(OBJECT(current_machine
),
1988 "memory-backend", backend
, &error_fatal
);
1992 static void parse_memory_options(void)
1994 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
1996 const char *mem_str
;
1999 loc_push_none(&loc
);
2000 qemu_opts_loc_restore(opts
);
2004 if (qemu_opt_get_size(opts
, "size", 0) != 0) {
2005 /* Fix up legacy suffix-less format */
2006 mem_str
= qemu_opt_get(opts
, "size");
2007 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2008 g_autofree
char *mib_str
= g_strdup_printf("%sM", mem_str
);
2009 qdict_put_str(prop
, "size", mib_str
);
2011 qdict_put_str(prop
, "size", mem_str
);
2015 if (qemu_opt_get(opts
, "maxmem")) {
2016 qdict_put_str(prop
, "max-size", qemu_opt_get(opts
, "maxmem"));
2018 if (qemu_opt_get(opts
, "slots")) {
2019 qdict_put_str(prop
, "slots", qemu_opt_get(opts
, "slots"));
2023 qdict_put(dict
, "memory", prop
);
2024 keyval_merge(machine_opts_dict
, dict
, &error_fatal
);
2025 qobject_unref(dict
);
2029 static void qemu_create_machine(QDict
*qdict
)
2031 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2032 object_set_machine_compat_props(machine_class
->compat_props
);
2034 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2035 object_property_add_child(object_get_root(), "machine",
2036 OBJECT(current_machine
));
2037 object_property_add_child(container_get(OBJECT(current_machine
),
2039 "sysbus", OBJECT(sysbus_get_default()));
2041 if (machine_class
->minimum_page_bits
) {
2042 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2043 /* This would be a board error: specifying a minimum smaller than
2044 * a target's compile-time fixed setting.
2046 g_assert_not_reached();
2050 cpu_exec_init_all();
2053 if (machine_class
->hw_version
) {
2054 qemu_set_hw_version(machine_class
->hw_version
);
2058 * Get the default machine options from the machine if it is not already
2059 * specified either by the configuration file or by the command line.
2061 if (machine_class
->default_machine_opts
) {
2062 QDict
*default_opts
=
2063 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2065 qemu_apply_legacy_machine_options(default_opts
);
2066 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2067 false, &error_abort
);
2068 qobject_unref(default_opts
);
2072 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2076 g
= g_malloc0(sizeof(*g
));
2077 g
->driver
= qemu_opt_get(opts
, "driver");
2078 g
->property
= qemu_opt_get(opts
, "property");
2079 g
->value
= qemu_opt_get(opts
, "value");
2080 qdev_prop_register_global(g
);
2085 * Return whether configuration group @group is stored in QemuOpts, or
2086 * recorded as one or more QDicts by qemu_record_config_group.
2088 static bool is_qemuopts_group(const char *group
)
2090 if (g_str_equal(group
, "object") ||
2091 g_str_equal(group
, "machine") ||
2092 g_str_equal(group
, "smp-opts") ||
2093 g_str_equal(group
, "boot-opts")) {
2099 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2100 bool from_json
, Error
**errp
)
2102 if (g_str_equal(group
, "object")) {
2103 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2104 object_option_add_visitor(v
);
2106 } else if (g_str_equal(group
, "machine")) {
2108 * Cannot merge string-valued and type-safe dictionaries, so JSON
2109 * is not accepted yet for -M.
2112 keyval_merge(machine_opts_dict
, dict
, errp
);
2113 } else if (g_str_equal(group
, "smp-opts")) {
2114 machine_merge_property("smp", dict
, &error_fatal
);
2115 } else if (g_str_equal(group
, "boot-opts")) {
2116 machine_merge_property("boot", dict
, &error_fatal
);
2123 * Parse non-QemuOpts config file groups, pass the rest to
2124 * qemu_config_do_parse.
2126 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2127 void *opaque
, Error
**errp
)
2130 if (is_qemuopts_group(group
)) {
2131 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2135 crumpled
= qdict_crumple(qdict
, errp
);
2139 switch (qobject_type(crumpled
)) {
2141 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2144 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2147 g_assert_not_reached();
2149 qobject_unref(crumpled
);
2152 static void qemu_read_default_config_file(Error
**errp
)
2156 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2158 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2160 if (ret
== -ENOENT
) {
2167 static void qemu_set_option(const char *str
, Error
**errp
)
2169 char group
[64], id
[64], arg
[64];
2174 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2175 if (rc
< 3 || str
[offset
] != '=') {
2176 error_setg(errp
, "can't parse: \"%s\"", str
);
2180 if (!is_qemuopts_group(group
)) {
2181 error_setg(errp
, "-set is not supported with %s", group
);
2183 list
= qemu_find_opts_err(group
, errp
);
2185 opts
= qemu_opts_find(list
, id
);
2187 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2190 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2195 static void user_register_global_props(void)
2197 qemu_opts_foreach(qemu_find_opts("global"),
2198 global_init_func
, NULL
, NULL
);
2201 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2203 icount_configure(opts
, errp
);
2207 static int accelerator_set_property(void *opaque
,
2208 const char *name
, const char *value
,
2211 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2214 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2216 bool *p_init_failed
= opaque
;
2217 const char *acc
= qemu_opt_get(opts
, "accel");
2218 AccelClass
*ac
= accel_find(acc
);
2221 bool qtest_with_kvm
;
2224 error_setg(errp
, QERR_MISSING_PARAMETER
, "accel");
2228 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2231 if (!qtest_with_kvm
) {
2232 error_report("invalid accelerator %s", acc
);
2236 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2237 object_apply_compat_props(OBJECT(accel
));
2238 qemu_opt_foreach(opts
, accelerator_set_property
,
2242 * If legacy -singlestep option is set, honour it for TCG and
2243 * silently ignore for any other accelerator (which is how this
2244 * option has always behaved).
2246 if (opt_one_insn_per_tb
) {
2248 * This will always succeed for TCG, and we want to ignore
2249 * the error from trying to set a nonexistent property
2250 * on any other accelerator.
2252 object_property_set_bool(OBJECT(accel
), "one-insn-per-tb", true, NULL
);
2254 ret
= accel_init_machine(accel
, current_machine
);
2256 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2257 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2265 *p_init_failed
= true;
2269 static void configure_accelerators(const char *progname
)
2271 bool init_failed
= false;
2273 qemu_opts_foreach(qemu_find_opts("icount"),
2274 do_configure_icount
, NULL
, &error_fatal
);
2276 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2277 char **accel_list
, **tmp
;
2279 if (accelerators
== NULL
) {
2280 /* Select the default accelerator */
2281 bool have_tcg
= accel_find("tcg");
2282 bool have_kvm
= accel_find("kvm");
2284 if (have_tcg
&& have_kvm
) {
2285 if (g_str_has_suffix(progname
, "kvm")) {
2286 /* If the program name ends with "kvm", we prefer KVM */
2287 accelerators
= "kvm:tcg";
2289 accelerators
= "tcg:kvm";
2291 } else if (have_kvm
) {
2292 accelerators
= "kvm";
2293 } else if (have_tcg
) {
2294 accelerators
= "tcg";
2296 error_report("No accelerator selected and"
2297 " no default accelerator available");
2301 accel_list
= g_strsplit(accelerators
, ":", 0);
2303 for (tmp
= accel_list
; *tmp
; tmp
++) {
2305 * Filter invalid accelerators here, to prevent obscenities
2306 * such as "-machine accel=tcg,,thread=single".
2308 if (accel_find(*tmp
)) {
2309 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2312 error_report("invalid accelerator %s", *tmp
);
2315 g_strfreev(accel_list
);
2317 if (accelerators
!= NULL
) {
2318 error_report("The -accel and \"-machine accel=\" options are incompatible");
2323 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2324 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2326 error_report("no accelerator found");
2331 if (init_failed
&& !qtest_chrdev
) {
2332 error_report("falling back to %s", current_accel_name());
2335 if (icount_enabled() && !tcg_enabled()) {
2336 error_report("-icount is not allowed with hardware virtualization");
2341 static void qemu_validate_options(const QDict
*machine_opts
)
2343 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2344 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2345 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2347 if (kernel_filename
== NULL
) {
2348 if (kernel_cmdline
!= NULL
) {
2349 error_report("-append only allowed with -kernel option");
2353 if (initrd_filename
!= NULL
) {
2354 error_report("-initrd only allowed with -kernel option");
2359 if (loadvm
&& preconfig_requested
) {
2360 error_report("'preconfig' and 'loadvm' options are "
2361 "mutually exclusive");
2364 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2365 error_report("'preconfig' supports '-incoming defer' only");
2369 #ifdef CONFIG_CURSES
2370 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2371 error_report("curses display cannot be used with -daemonize");
2377 static void qemu_process_sugar_options(void)
2380 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2381 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2382 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2383 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2384 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2385 object_register_sugar_prop("memory-backend", "prealloc-threads",
2389 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2393 /* -action processing */
2396 * Process all the -action parameters parsed from cmdline.
2398 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2400 Error
*local_err
= NULL
;
2401 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2402 QObject
*ret
= NULL
;
2403 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2405 qobject_unref(qdict
);
2407 error_propagate(errp
, local_err
);
2413 static void qemu_process_early_options(void)
2415 qemu_opts_foreach(qemu_find_opts("name"),
2416 parse_name
, NULL
, &error_fatal
);
2418 object_option_foreach_add(object_create_pre_sandbox
);
2420 #ifdef CONFIG_SECCOMP
2421 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2423 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2427 if (qemu_opts_foreach(qemu_find_opts("action"),
2428 process_runstate_actions
, NULL
, &error_fatal
)) {
2433 qemu_opts_foreach(qemu_find_opts("add-fd"),
2434 parse_add_fd
, NULL
, &error_fatal
);
2436 qemu_opts_foreach(qemu_find_opts("add-fd"),
2437 cleanup_add_fd
, NULL
, &error_fatal
);
2440 /* Open the logfile at this point and set the log mask if necessary. */
2444 mask
= qemu_str_to_log_mask(log_mask
);
2446 qemu_print_log_usage(stdout
);
2450 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2453 qemu_add_default_firmwarepath();
2456 static void qemu_process_help_options(void)
2459 * Check for -cpu help and -device help before we call select_machine(),
2460 * which will return an error if the architecture has no default machine
2461 * type and the user did not specify one, so that the user doesn't need
2462 * to say '-cpu help -machine something'.
2464 if (cpu_option
&& is_help_option(cpu_option
)) {
2469 if (qemu_opts_foreach(qemu_find_opts("device"),
2470 device_help_func
, NULL
, NULL
)) {
2474 /* -L help lists the data directories and exits. */
2475 if (list_data_dirs
) {
2476 qemu_list_data_dirs();
2481 static void qemu_maybe_daemonize(const char *pid_file
)
2486 rcu_disable_atfork();
2489 char *pid_file_realpath
= NULL
;
2491 if (!qemu_write_pidfile(pid_file
, &err
)) {
2492 error_reportf_err(err
, "cannot create PID file: ");
2496 pid_file_realpath
= g_malloc0(PATH_MAX
);
2497 if (!realpath(pid_file
, pid_file_realpath
)) {
2498 if (errno
!= ENOENT
) {
2499 warn_report("not removing PID file on exit: cannot resolve PID "
2500 "file path: %s: %s", pid_file
, strerror(errno
));
2505 qemu_unlink_pidfile_notifier
= (struct UnlinkPidfileNotifier
) {
2507 .notify
= qemu_unlink_pidfile
,
2509 .pid_file_realpath
= pid_file_realpath
,
2511 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
.notifier
);
2515 static void qemu_init_displays(void)
2519 /* init local displays */
2520 ds
= init_displaystate();
2521 qemu_display_init(ds
, &dpy
);
2523 /* must be after terminal init, SDL library changes signal handlers */
2524 os_setup_signal_handling();
2526 /* init remote displays */
2528 qemu_opts_foreach(qemu_find_opts("vnc"),
2529 vnc_init_func
, NULL
, &error_fatal
);
2533 qemu_spice
.display_init();
2537 static void qemu_init_board(void)
2539 /* process plugin before CPUs are created, but once -smp has been parsed */
2540 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2542 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2543 machine_run_board_init(current_machine
, mem_path
, &error_fatal
);
2545 drive_check_orphaned();
2550 static void qemu_create_cli_devices(void)
2556 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2557 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2559 /* init USB devices */
2560 if (machine_usb(current_machine
)) {
2561 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2565 /* init generic devices */
2566 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2567 qemu_opts_foreach(qemu_find_opts("device"),
2568 device_init_func
, NULL
, &error_fatal
);
2569 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2571 loc_push_restore(&opt
->loc
);
2573 * TODO Eventually we should call qmp_device_add() here to make sure it
2574 * behaves the same, but QMP still has to accept incorrectly typed
2575 * options until libvirt is fixed and we want to be strict on the CLI
2576 * from the start, so call qdev_device_add_from_qdict() directly for
2579 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2580 object_unref(OBJECT(dev
));
2583 rom_reset_order_override();
2586 static void qemu_machine_creation_done(void)
2588 MachineState
*machine
= MACHINE(qdev_get_machine());
2590 /* Did we create any drives that we failed to create a device for? */
2591 drive_check_orphaned();
2593 /* Don't warn about the default network setup that you get if
2594 * no command line -net or -netdev options are specified. There
2595 * are two cases that we would otherwise complain about:
2596 * (1) board doesn't support a NIC but the implicit "-net nic"
2598 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2599 * sets up a nic that isn't connected to anything.
2601 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2602 net_check_clients();
2605 qdev_prop_check_globals();
2607 qdev_machine_creation_done();
2611 * Verify that Confidential Guest Support has actually been initialized
2613 assert(machine
->cgs
->ready
);
2616 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2619 if (!vga_interface_created
&& !default_vga
&&
2620 vga_interface_type
!= VGA_NONE
) {
2621 warn_report("A -vga option was passed but this machine "
2622 "type does not use that option; "
2623 "No VGA device has been created");
2627 void qmp_x_exit_preconfig(Error
**errp
)
2629 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2630 error_setg(errp
, "The command is permitted only before machine initialization");
2635 qemu_create_cli_devices();
2636 qemu_machine_creation_done();
2639 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2641 if (replay_mode
!= REPLAY_MODE_NONE
) {
2642 replay_vmstate_init();
2646 Error
*local_err
= NULL
;
2647 if (strcmp(incoming
, "defer") != 0) {
2648 qmp_migrate_incoming(incoming
, &local_err
);
2650 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2654 } else if (autostart
) {
2659 void qemu_init(int argc
, char **argv
)
2662 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2663 QemuOptsList
*olist
;
2666 MachineClass
*machine_class
;
2667 bool userconfig
= true;
2668 FILE *vmstate_dump_file
= NULL
;
2670 qemu_add_opts(&qemu_drive_opts
);
2671 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2672 qemu_add_drive_opts(&qemu_common_drive_opts
);
2673 qemu_add_drive_opts(&qemu_drive_opts
);
2674 qemu_add_drive_opts(&bdrv_runtime_opts
);
2675 qemu_add_opts(&qemu_chardev_opts
);
2676 qemu_add_opts(&qemu_device_opts
);
2677 qemu_add_opts(&qemu_netdev_opts
);
2678 qemu_add_opts(&qemu_nic_opts
);
2679 qemu_add_opts(&qemu_net_opts
);
2680 qemu_add_opts(&qemu_rtc_opts
);
2681 qemu_add_opts(&qemu_global_opts
);
2682 qemu_add_opts(&qemu_mon_opts
);
2683 qemu_add_opts(&qemu_trace_opts
);
2684 qemu_plugin_add_opts();
2685 qemu_add_opts(&qemu_option_rom_opts
);
2686 qemu_add_opts(&qemu_accel_opts
);
2687 qemu_add_opts(&qemu_mem_opts
);
2688 qemu_add_opts(&qemu_smp_opts
);
2689 qemu_add_opts(&qemu_boot_opts
);
2690 qemu_add_opts(&qemu_add_fd_opts
);
2691 qemu_add_opts(&qemu_object_opts
);
2692 qemu_add_opts(&qemu_tpmdev_opts
);
2693 qemu_add_opts(&qemu_overcommit_opts
);
2694 qemu_add_opts(&qemu_msg_opts
);
2695 qemu_add_opts(&qemu_name_opts
);
2696 qemu_add_opts(&qemu_numa_opts
);
2697 qemu_add_opts(&qemu_icount_opts
);
2698 qemu_add_opts(&qemu_semihosting_config_opts
);
2699 qemu_add_opts(&qemu_fw_cfg_opts
);
2700 qemu_add_opts(&qemu_action_opts
);
2701 module_call_init(MODULE_INIT_OPTS
);
2703 error_init(argv
[0]);
2704 qemu_init_exec_dir(argv
[0]);
2706 qemu_init_arch_modules();
2708 qemu_init_subsystems();
2710 /* first pass of option parsing */
2712 while (optind
< argc
) {
2713 if (argv
[optind
][0] != '-') {
2717 const QEMUOption
*popt
;
2719 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2720 switch (popt
->index
) {
2721 case QEMU_OPTION_nouserconfig
:
2728 machine_opts_dict
= qdict_new();
2730 qemu_read_default_config_file(&error_fatal
);
2733 /* second pass of option parsing */
2738 if (argv
[optind
][0] != '-') {
2739 loc_set_cmdline(argv
, optind
, 1);
2740 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2742 const QEMUOption
*popt
;
2744 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2745 if (!(popt
->arch_mask
& arch_type
)) {
2746 error_report("Option not supported for this target");
2749 switch(popt
->index
) {
2750 case QEMU_OPTION_cpu
:
2751 /* hw initialization will check this */
2752 cpu_option
= optarg
;
2754 case QEMU_OPTION_hda
:
2755 case QEMU_OPTION_hdb
:
2756 case QEMU_OPTION_hdc
:
2757 case QEMU_OPTION_hdd
:
2758 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2761 case QEMU_OPTION_blockdev
:
2764 BlockdevOptionsQueueEntry
*bdo
;
2766 v
= qobject_input_visitor_new_str(optarg
, "driver",
2769 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2770 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2773 loc_save(&bdo
->loc
);
2774 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2777 case QEMU_OPTION_drive
:
2778 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2784 case QEMU_OPTION_set
:
2785 qemu_set_option(optarg
, &error_fatal
);
2787 case QEMU_OPTION_global
:
2788 if (qemu_global_option(optarg
) != 0)
2791 case QEMU_OPTION_mtdblock
:
2792 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2794 case QEMU_OPTION_sd
:
2795 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2797 case QEMU_OPTION_pflash
:
2798 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2800 case QEMU_OPTION_snapshot
:
2802 replay_add_blocker("-snapshot");
2804 case QEMU_OPTION_numa
:
2805 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2811 case QEMU_OPTION_display
:
2812 parse_display(optarg
);
2814 case QEMU_OPTION_nographic
:
2815 qdict_put_str(machine_opts_dict
, "graphics", "off");
2817 dpy
.type
= DISPLAY_TYPE_NONE
;
2819 case QEMU_OPTION_portrait
:
2820 graphic_rotate
= 90;
2822 case QEMU_OPTION_rotate
:
2823 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2824 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2825 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2826 error_report("only 90, 180, 270 deg rotation is available");
2830 case QEMU_OPTION_kernel
:
2831 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2833 case QEMU_OPTION_initrd
:
2834 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2836 case QEMU_OPTION_append
:
2837 qdict_put_str(machine_opts_dict
, "append", optarg
);
2839 case QEMU_OPTION_dtb
:
2840 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2842 case QEMU_OPTION_cdrom
:
2843 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2845 case QEMU_OPTION_boot
:
2846 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2848 case QEMU_OPTION_fda
:
2849 case QEMU_OPTION_fdb
:
2850 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2853 case QEMU_OPTION_no_fd_bootchk
:
2856 case QEMU_OPTION_netdev
:
2858 if (netdev_is_modern(optarg
)) {
2859 netdev_parse_modern(optarg
);
2861 net_client_parse(qemu_find_opts("netdev"), optarg
);
2864 case QEMU_OPTION_nic
:
2866 net_client_parse(qemu_find_opts("nic"), optarg
);
2868 case QEMU_OPTION_net
:
2870 net_client_parse(qemu_find_opts("net"), optarg
);
2872 #ifdef CONFIG_LIBISCSI
2873 case QEMU_OPTION_iscsi
:
2874 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2881 case QEMU_OPTION_audio_help
:
2882 audio_legacy_help();
2885 case QEMU_OPTION_audiodev
:
2886 audio_parse_option(optarg
);
2888 case QEMU_OPTION_audio
: {
2891 Audiodev
*dev
= NULL
;
2893 QDict
*dict
= keyval_parse(optarg
, "driver", &help
, &error_fatal
);
2894 if (help
|| (qdict_haskey(dict
, "driver") &&
2895 is_help_option(qdict_get_str(dict
, "driver")))) {
2899 if (!qdict_haskey(dict
, "id")) {
2900 qdict_put_str(dict
, "id", "audiodev0");
2902 if (!qdict_haskey(dict
, "model")) {
2903 error_setg(&error_fatal
, "Parameter 'model' is missing");
2905 model
= g_strdup(qdict_get_str(dict
, "model"));
2906 qdict_del(dict
, "model");
2907 if (is_help_option(model
)) {
2908 show_valid_soundhw();
2911 v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2912 qobject_unref(dict
);
2913 visit_type_Audiodev(v
, NULL
, &dev
, &error_fatal
);
2916 select_soundhw(model
, dev
->id
);
2923 case QEMU_OPTION_version
:
2928 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg
, true);
2934 case QEMU_OPTION_tpmdev
:
2935 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
2940 case QEMU_OPTION_mempath
:
2943 case QEMU_OPTION_mem_prealloc
:
2952 case QEMU_OPTION_DFILTER
:
2953 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
2955 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
2956 case QEMU_OPTION_perfmap
:
2957 perf_enable_perfmap();
2959 case QEMU_OPTION_jitdump
:
2960 perf_enable_jitdump();
2963 case QEMU_OPTION_seed
:
2964 qemu_guest_random_seed_main(optarg
, &error_fatal
);
2967 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
2969 case QEMU_OPTION_gdb
:
2970 add_device_config(DEV_GDB
, optarg
);
2973 if (is_help_option(optarg
)) {
2974 list_data_dirs
= true;
2976 qemu_add_data_dir(g_strdup(optarg
));
2979 case QEMU_OPTION_bios
:
2980 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
2982 case QEMU_OPTION_singlestep
:
2983 opt_one_insn_per_tb
= true;
2989 keyboard_layout
= optarg
;
2991 case QEMU_OPTION_vga
:
3000 w
= strtol(p
, (char **)&p
, 10);
3003 error_report("invalid resolution or depth");
3009 h
= strtol(p
, (char **)&p
, 10);
3014 depth
= strtol(p
, (char **)&p
, 10);
3015 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3016 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3017 depth
!= 24 && depth
!= 32)
3019 } else if (*p
== '\0') {
3020 depth
= graphic_depth
;
3027 graphic_depth
= depth
;
3030 case QEMU_OPTION_echr
:
3033 term_escape_char
= strtol(optarg
, &r
, 0);
3035 printf("Bad argument to echr\n");
3038 case QEMU_OPTION_monitor
:
3039 default_monitor
= 0;
3040 if (strncmp(optarg
, "none", 4)) {
3041 monitor_parse(optarg
, "readline", false);
3044 case QEMU_OPTION_qmp
:
3045 monitor_parse(optarg
, "control", false);
3046 default_monitor
= 0;
3048 case QEMU_OPTION_qmp_pretty
:
3049 monitor_parse(optarg
, "control", true);
3050 default_monitor
= 0;
3052 case QEMU_OPTION_mon
:
3053 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3058 default_monitor
= 0;
3060 case QEMU_OPTION_chardev
:
3061 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3067 case QEMU_OPTION_fsdev
:
3068 olist
= qemu_find_opts("fsdev");
3070 error_report("fsdev support is disabled");
3073 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3078 case QEMU_OPTION_virtfs
: {
3081 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3084 olist
= qemu_find_opts("virtfs");
3086 error_report("virtfs support is disabled");
3089 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3094 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3095 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3096 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3099 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3100 qemu_opts_id(opts
) ?:
3101 qemu_opt_get(opts
, "mount_tag"),
3104 error_report("duplicate or invalid fsdev id: %s",
3105 qemu_opt_get(opts
, "mount_tag"));
3109 writeout
= qemu_opt_get(opts
, "writeout");
3111 #ifdef CONFIG_SYNC_FILE_RANGE
3112 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3114 error_report("writeout=immediate not supported "
3115 "on this platform");
3119 qemu_opt_set(fsdev
, "fsdriver",
3120 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3121 path
= qemu_opt_get(opts
, "path");
3123 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3125 security_model
= qemu_opt_get(opts
, "security_model");
3126 if (security_model
) {
3127 qemu_opt_set(fsdev
, "security_model", security_model
,
3130 socket
= qemu_opt_get(opts
, "socket");
3132 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3134 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3136 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3139 qemu_opt_set_bool(fsdev
, "readonly",
3140 qemu_opt_get_bool(opts
, "readonly", 0),
3142 multidevs
= qemu_opt_get(opts
, "multidevs");
3144 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3146 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3148 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3149 qemu_opt_set(device
, "fsdev",
3150 qemu_opts_id(fsdev
), &error_abort
);
3151 qemu_opt_set(device
, "mount_tag",
3152 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3155 case QEMU_OPTION_serial
:
3156 add_device_config(DEV_SERIAL
, optarg
);
3158 if (strncmp(optarg
, "mon:", 4) == 0) {
3159 default_monitor
= 0;
3162 case QEMU_OPTION_action
:
3163 olist
= qemu_find_opts("action");
3164 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3168 case QEMU_OPTION_watchdog_action
: {
3170 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3171 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3174 case QEMU_OPTION_parallel
:
3175 add_device_config(DEV_PARALLEL
, optarg
);
3176 default_parallel
= 0;
3177 if (strncmp(optarg
, "mon:", 4) == 0) {
3178 default_monitor
= 0;
3181 case QEMU_OPTION_debugcon
:
3182 add_device_config(DEV_DEBUGCON
, optarg
);
3184 case QEMU_OPTION_loadvm
:
3187 case QEMU_OPTION_full_screen
:
3188 dpy
.has_full_screen
= true;
3189 dpy
.full_screen
= true;
3191 case QEMU_OPTION_pidfile
:
3194 case QEMU_OPTION_win2k_hack
:
3195 win2k_install_hack
= 1;
3197 case QEMU_OPTION_acpitable
:
3198 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3203 acpi_table_add(opts
, &error_fatal
);
3205 case QEMU_OPTION_smbios
:
3206 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3211 smbios_entry_add(opts
, &error_fatal
);
3213 case QEMU_OPTION_fwcfg
:
3214 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3220 case QEMU_OPTION_preconfig
:
3221 preconfig_requested
= true;
3223 case QEMU_OPTION_enable_kvm
:
3224 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3227 case QEMU_OPTION_machine
:
3231 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3233 machine_help_func(machine_opts_dict
);
3238 case QEMU_OPTION_accel
:
3239 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3241 optarg
= qemu_opt_get(accel_opts
, "accel");
3242 if (!optarg
|| is_help_option(optarg
)) {
3243 printf("Accelerators supported in QEMU binary:\n");
3244 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3246 for (el
= accel_list
; el
; el
= el
->next
) {
3247 gchar
*typename
= g_strdup(object_class_get_name(
3248 OBJECT_CLASS(el
->data
)));
3249 /* omit qtest which is used for tests only */
3250 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3251 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3252 gchar
**optname
= g_strsplit(typename
,
3253 ACCEL_CLASS_SUFFIX
, 0);
3254 printf("%s\n", optname
[0]);
3255 g_strfreev(optname
);
3259 g_slist_free(accel_list
);
3263 case QEMU_OPTION_usb
:
3264 qdict_put_str(machine_opts_dict
, "usb", "on");
3266 case QEMU_OPTION_usbdevice
:
3267 qdict_put_str(machine_opts_dict
, "usb", "on");
3268 add_device_config(DEV_USB
, optarg
);
3270 case QEMU_OPTION_device
:
3271 if (optarg
[0] == '{') {
3272 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3273 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3274 opt
->opts
= qobject_to(QDict
, obj
);
3275 loc_save(&opt
->loc
);
3276 assert(opt
->opts
!= NULL
);
3277 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3279 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3285 case QEMU_OPTION_smp
:
3286 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3289 case QEMU_OPTION_vnc
:
3292 case QEMU_OPTION_no_acpi
:
3293 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3294 qdict_put_str(machine_opts_dict
, "acpi", "off");
3296 case QEMU_OPTION_no_hpet
:
3297 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3298 qdict_put_str(machine_opts_dict
, "hpet", "off");
3300 case QEMU_OPTION_no_reboot
:
3301 olist
= qemu_find_opts("action");
3302 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3304 case QEMU_OPTION_no_shutdown
:
3305 olist
= qemu_find_opts("action");
3306 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3308 case QEMU_OPTION_uuid
:
3309 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3310 error_report("failed to parse UUID string: wrong format");
3313 qemu_uuid_set
= true;
3315 case QEMU_OPTION_option_rom
:
3316 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3317 error_report("too many option ROMs");
3320 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3325 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3326 option_rom
[nb_option_roms
].bootindex
=
3327 qemu_opt_get_number(opts
, "bootindex", -1);
3328 if (!option_rom
[nb_option_roms
].name
) {
3329 error_report("Option ROM file is not specified");
3334 case QEMU_OPTION_semihosting
:
3335 qemu_semihosting_enable();
3337 case QEMU_OPTION_semihosting_config
:
3338 if (qemu_semihosting_config_options(optarg
) != 0) {
3342 case QEMU_OPTION_name
:
3343 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3348 /* Capture guest name if -msg guest-name is used later */
3349 error_guest_name
= qemu_opt_get(opts
, "guest");
3351 case QEMU_OPTION_prom_env
:
3352 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3353 error_report("too many prom variables");
3356 prom_envs
[nb_prom_envs
] = optarg
;
3359 case QEMU_OPTION_old_param
:
3362 case QEMU_OPTION_rtc
:
3363 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3369 case QEMU_OPTION_icount
:
3370 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3376 case QEMU_OPTION_incoming
:
3378 runstate_set(RUN_STATE_INMIGRATE
);
3382 case QEMU_OPTION_only_migratable
:
3383 only_migratable
= 1;
3385 case QEMU_OPTION_nodefaults
:
3388 case QEMU_OPTION_xen_domid
:
3389 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3390 error_report("Option not supported for this target");
3393 xen_domid
= atoi(optarg
);
3395 case QEMU_OPTION_xen_attach
:
3396 if (!(accel_find("xen"))) {
3397 error_report("Option not supported for this target");
3400 xen_mode
= XEN_ATTACH
;
3402 case QEMU_OPTION_xen_domid_restrict
:
3403 if (!(accel_find("xen"))) {
3404 error_report("Option not supported for this target");
3407 xen_domid_restrict
= true;
3409 case QEMU_OPTION_trace
:
3410 trace_opt_parse(optarg
);
3412 case QEMU_OPTION_plugin
:
3413 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3415 case QEMU_OPTION_readconfig
:
3416 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3419 case QEMU_OPTION_spice
:
3420 olist
= qemu_find_opts_err("spice", NULL
);
3422 error_report("spice support is disabled");
3425 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3432 case QEMU_OPTION_qtest
:
3433 qtest_chrdev
= optarg
;
3435 case QEMU_OPTION_qtest_log
:
3438 case QEMU_OPTION_sandbox
:
3439 olist
= qemu_find_opts("sandbox");
3441 #ifndef CONFIG_SECCOMP
3442 error_report("-sandbox support is not enabled "
3443 "in this QEMU binary");
3448 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3453 case QEMU_OPTION_add_fd
:
3455 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3461 error_report("File descriptor passing is disabled on this "
3466 case QEMU_OPTION_object
:
3467 object_option_parse(optarg
);
3469 case QEMU_OPTION_overcommit
:
3470 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3475 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3476 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3478 case QEMU_OPTION_compat
:
3483 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3486 visit_type_CompatPolicy(v
, NULL
, &opts
, &error_fatal
);
3487 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts
);
3489 qapi_free_CompatPolicy(opts
);
3493 case QEMU_OPTION_msg
:
3494 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3499 configure_msg(opts
);
3501 case QEMU_OPTION_dump_vmstate
:
3502 if (vmstate_dump_file
) {
3503 error_report("only one '-dump-vmstate' "
3504 "option may be given");
3507 vmstate_dump_file
= fopen(optarg
, "w");
3508 if (vmstate_dump_file
== NULL
) {
3509 error_report("open %s: %s", optarg
, strerror(errno
));
3513 case QEMU_OPTION_enable_sync_profile
:
3516 case QEMU_OPTION_nouserconfig
:
3517 /* Nothing to be parsed here. Especially, do not error out below. */
3520 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3521 error_report("Option not supported in this build");
3528 * Clear error location left behind by the loop.
3529 * Best done right after the loop. Do not insert code here!
3533 qemu_validate_options(machine_opts_dict
);
3534 qemu_process_sugar_options();
3537 * These options affect everything else and should be processed
3538 * before daemonizing.
3540 qemu_process_early_options();
3542 qemu_process_help_options();
3543 qemu_maybe_daemonize(pid_file
);
3546 * The trace backend must be initialized after daemonizing.
3547 * trace_init_backends() will call st_init(), which will create the
3548 * trace thread in the parent, and also register st_flush_trace_buffer()
3549 * in atexit(). This function will force the parent to wait for the
3550 * writeout thread to finish, which will not occur, and the parent
3551 * process will be left in the host.
3553 if (!trace_init_backends()) {
3558 qemu_init_main_loop(&error_fatal
);
3561 user_register_global_props();
3562 replay_configure(icount_opts
);
3564 configure_rtc(qemu_find_opts_singleton("rtc"));
3566 /* Transfer QemuOpts options into machine options */
3567 parse_memory_options();
3569 qemu_create_machine(machine_opts_dict
);
3573 qemu_disable_default_devices();
3574 qemu_create_default_devices();
3575 qemu_create_early_backends();
3577 qemu_apply_legacy_machine_options(machine_opts_dict
);
3578 qemu_apply_machine_options(machine_opts_dict
);
3579 qobject_unref(machine_opts_dict
);
3580 phase_advance(PHASE_MACHINE_CREATED
);
3583 * Note: uses machine properties such as kernel-irqchip, must run
3584 * after qemu_apply_machine_options.
3586 configure_accelerators(argv
[0]);
3587 phase_advance(PHASE_ACCEL_CREATED
);
3590 * Beware, QOM objects created before this point miss global and
3591 * compat properties.
3593 * Global properties get set up by qdev_prop_register_global(),
3594 * called from user_register_global_props(), and certain option
3595 * desugaring. Also in CPU feature desugaring (buried in
3596 * parse_cpu_option()), which happens below this point, but may
3597 * only target the CPU type, which can only be created after
3598 * parse_cpu_option() returned the type.
3600 * Machine compat properties: object_set_machine_compat_props().
3601 * Accelerator compat props: object_set_accelerator_compat_props(),
3602 * called from do_configure_accelerator().
3605 machine_class
= MACHINE_GET_CLASS(current_machine
);
3606 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3607 warn_report("Machine type '%s' is deprecated: %s",
3608 machine_class
->name
, machine_class
->deprecation_reason
);
3612 * Create backends before creating migration objects, so that it can
3613 * check against compatibilities on the backend memories (e.g. postcopy
3614 * over memory-backend-file objects).
3616 qemu_create_late_backends();
3619 * Note: creates a QOM object, must run only after global and
3620 * compat properties have been set up.
3622 migration_object_init();
3624 /* parse features once if machine provides default cpu_type */
3625 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
3627 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3629 /* NB: for machine none cpu_type could STILL be NULL here! */
3631 qemu_resolve_machine_memdev();
3632 parse_numa_opts(current_machine
);
3634 if (vmstate_dump_file
) {
3636 module_load_qom_all();
3637 dump_vmstate_json_to_file(vmstate_dump_file
);
3641 if (!preconfig_requested
) {
3642 qmp_x_exit_preconfig(&error_fatal
);
3644 qemu_init_displays();
3645 accel_setup_post(current_machine
);