4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
95 #include "fsdev/qemu-fsdev.h"
97 #include "sysemu/qtest.h"
99 #include "accel/tcg/perf.h"
102 #include "disas/disas.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
137 #define MAX_VIRTIO_CONSOLES 1
139 typedef struct BlockdevOptionsQueueEntry
{
140 BlockdevOptions
*bdo
;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
143 } BlockdevOptionsQueueEntry
;
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
147 typedef struct ObjectOption
{
149 QTAILQ_ENTRY(ObjectOption
) next
;
152 typedef struct DeviceOption
{
155 QTAILQ_ENTRY(DeviceOption
) next
;
158 static const char *cpu_option
;
159 static const char *mem_path
;
160 static const char *incoming
;
161 static const char *loadvm
;
162 static const char *accelerators
;
163 static bool have_custom_ram_size
;
164 static const char *ram_memdev_id
;
165 static QDict
*machine_opts_dict
;
166 static QTAILQ_HEAD(, ObjectOption
) object_opts
= QTAILQ_HEAD_INITIALIZER(object_opts
);
167 static QTAILQ_HEAD(, DeviceOption
) device_opts
= QTAILQ_HEAD_INITIALIZER(device_opts
);
168 static int display_remote
;
170 static bool preconfig_requested
;
171 static QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
172 static BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
173 static bool nographic
= false;
174 static int mem_prealloc
; /* force preallocation of physical target memory */
175 static const char *vga_model
= NULL
;
176 static DisplayOptions dpy
;
177 static int num_serial_hds
;
178 static Chardev
**serial_hds
;
179 static const char *log_mask
;
180 static const char *log_file
;
181 static bool list_data_dirs
;
182 static const char *qtest_chrdev
;
183 static const char *qtest_log
;
184 static bool opt_one_insn_per_tb
;
186 static int has_defaults
= 1;
187 static int default_audio
= 1;
188 static int default_serial
= 1;
189 static int default_parallel
= 1;
190 static int default_monitor
= 1;
191 static int default_floppy
= 1;
192 static int default_cdrom
= 1;
193 static int default_sdcard
= 1;
194 static int default_vga
= 1;
195 static int default_net
= 1;
197 static const struct {
201 { .driver
= "xen-console", .flag
= &default_serial
},
202 { .driver
= "isa-serial", .flag
= &default_serial
},
203 { .driver
= "isa-parallel", .flag
= &default_parallel
},
204 { .driver
= "isa-fdc", .flag
= &default_floppy
},
205 { .driver
= "floppy", .flag
= &default_floppy
},
206 { .driver
= "ide-cd", .flag
= &default_cdrom
},
207 { .driver
= "ide-hd", .flag
= &default_cdrom
},
208 { .driver
= "scsi-cd", .flag
= &default_cdrom
},
209 { .driver
= "scsi-hd", .flag
= &default_cdrom
},
210 { .driver
= "VGA", .flag
= &default_vga
},
211 { .driver
= "isa-vga", .flag
= &default_vga
},
212 { .driver
= "cirrus-vga", .flag
= &default_vga
},
213 { .driver
= "isa-cirrus-vga", .flag
= &default_vga
},
214 { .driver
= "vmware-svga", .flag
= &default_vga
},
215 { .driver
= "qxl-vga", .flag
= &default_vga
},
216 { .driver
= "virtio-vga", .flag
= &default_vga
},
217 { .driver
= "ati-vga", .flag
= &default_vga
},
218 { .driver
= "vhost-user-vga", .flag
= &default_vga
},
219 { .driver
= "virtio-vga-gl", .flag
= &default_vga
},
220 { .driver
= "virtio-vga-rutabaga", .flag
= &default_vga
},
223 static QemuOptsList qemu_rtc_opts
= {
225 .head
= QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts
.head
),
230 .type
= QEMU_OPT_STRING
,
233 .type
= QEMU_OPT_STRING
,
236 .type
= QEMU_OPT_STRING
,
238 { /* end of list */ }
242 static QemuOptsList qemu_option_rom_opts
= {
243 .name
= "option-rom",
244 .implied_opt_name
= "romfile",
245 .head
= QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts
.head
),
249 .type
= QEMU_OPT_NUMBER
,
252 .type
= QEMU_OPT_STRING
,
254 { /* end of list */ }
258 static QemuOptsList qemu_accel_opts
= {
260 .implied_opt_name
= "accel",
261 .head
= QTAILQ_HEAD_INITIALIZER(qemu_accel_opts
.head
),
264 * no elements => accept any
265 * sanity checking will happen later
266 * when setting accelerator properties
272 static QemuOptsList qemu_boot_opts
= {
274 .implied_opt_name
= "order",
276 .head
= QTAILQ_HEAD_INITIALIZER(qemu_boot_opts
.head
),
280 .type
= QEMU_OPT_STRING
,
283 .type
= QEMU_OPT_STRING
,
286 .type
= QEMU_OPT_BOOL
,
289 .type
= QEMU_OPT_STRING
,
291 .name
= "splash-time",
292 .type
= QEMU_OPT_NUMBER
,
294 .name
= "reboot-timeout",
295 .type
= QEMU_OPT_NUMBER
,
298 .type
= QEMU_OPT_BOOL
,
304 static QemuOptsList qemu_add_fd_opts
= {
306 .head
= QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts
.head
),
310 .type
= QEMU_OPT_NUMBER
,
311 .help
= "file descriptor of which a duplicate is added to fd set",
314 .type
= QEMU_OPT_NUMBER
,
315 .help
= "ID of the fd set to add fd to",
318 .type
= QEMU_OPT_STRING
,
319 .help
= "free-form string used to describe fd",
321 { /* end of list */ }
325 static QemuOptsList qemu_object_opts
= {
327 .implied_opt_name
= "qom-type",
328 .head
= QTAILQ_HEAD_INITIALIZER(qemu_object_opts
.head
),
334 static QemuOptsList qemu_tpmdev_opts
= {
336 .implied_opt_name
= "type",
337 .head
= QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts
.head
),
339 /* options are defined in the TPM backends */
340 { /* end of list */ }
344 static QemuOptsList qemu_overcommit_opts
= {
345 .name
= "overcommit",
346 .head
= QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts
.head
),
350 .type
= QEMU_OPT_BOOL
,
354 .type
= QEMU_OPT_BOOL
,
356 { /* end of list */ }
360 static QemuOptsList qemu_msg_opts
= {
362 .head
= QTAILQ_HEAD_INITIALIZER(qemu_msg_opts
.head
),
366 .type
= QEMU_OPT_BOOL
,
369 .name
= "guest-name",
370 .type
= QEMU_OPT_BOOL
,
371 .help
= "Prepends guest name for error messages but only if "
372 "-name guest is set otherwise option is ignored\n",
374 { /* end of list */ }
378 static QemuOptsList qemu_name_opts
= {
380 .implied_opt_name
= "guest",
382 .head
= QTAILQ_HEAD_INITIALIZER(qemu_name_opts
.head
),
386 .type
= QEMU_OPT_STRING
,
387 .help
= "Sets the name of the guest.\n"
388 "This name will be displayed in the SDL window caption.\n"
389 "The name will also be used for the VNC server",
392 .type
= QEMU_OPT_STRING
,
393 .help
= "Sets the name of the QEMU process, as shown in top etc",
395 .name
= "debug-threads",
396 .type
= QEMU_OPT_BOOL
,
397 .help
= "When enabled, name the individual threads; defaults off.\n"
398 "NOTE: The thread names are for debugging and not a\n"
401 { /* End of list */ }
405 static QemuOptsList qemu_mem_opts
= {
407 .implied_opt_name
= "size",
408 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mem_opts
.head
),
413 .type
= QEMU_OPT_SIZE
,
417 .type
= QEMU_OPT_NUMBER
,
421 .type
= QEMU_OPT_SIZE
,
423 { /* end of list */ }
427 static QemuOptsList qemu_icount_opts
= {
429 .implied_opt_name
= "shift",
431 .head
= QTAILQ_HEAD_INITIALIZER(qemu_icount_opts
.head
),
435 .type
= QEMU_OPT_STRING
,
438 .type
= QEMU_OPT_BOOL
,
441 .type
= QEMU_OPT_BOOL
,
444 .type
= QEMU_OPT_STRING
,
447 .type
= QEMU_OPT_STRING
,
449 .name
= "rrsnapshot",
450 .type
= QEMU_OPT_STRING
,
452 { /* end of list */ }
456 static QemuOptsList qemu_fw_cfg_opts
= {
458 .implied_opt_name
= "name",
459 .head
= QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts
.head
),
463 .type
= QEMU_OPT_STRING
,
464 .help
= "Sets the fw_cfg name of the blob to be inserted",
467 .type
= QEMU_OPT_STRING
,
468 .help
= "Sets the name of the file from which "
469 "the fw_cfg blob will be loaded",
472 .type
= QEMU_OPT_STRING
,
473 .help
= "Sets content of the blob to be inserted from a string",
476 .type
= QEMU_OPT_STRING
,
477 .help
= "Sets id of the object generating the fw_cfg blob "
480 { /* end of list */ }
484 static QemuOptsList qemu_action_opts
= {
487 .head
= QTAILQ_HEAD_INITIALIZER(qemu_action_opts
.head
),
491 .type
= QEMU_OPT_STRING
,
494 .type
= QEMU_OPT_STRING
,
497 .type
= QEMU_OPT_STRING
,
500 .type
= QEMU_OPT_STRING
,
502 { /* end of list */ }
506 const char *qemu_get_vm_name(void)
511 static void default_driver_disable(const char *driver
)
519 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
520 if (strcmp(default_list
[i
].driver
, driver
) != 0)
522 *(default_list
[i
].flag
) = 0;
526 static int default_driver_check(void *opaque
, QemuOpts
*opts
, Error
**errp
)
528 const char *driver
= qemu_opt_get(opts
, "driver");
530 default_driver_disable(driver
);
534 static void default_driver_check_json(void)
538 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
539 const char *driver
= qdict_get_try_str(opt
->opts
, "driver");
540 default_driver_disable(driver
);
544 static int parse_name(void *opaque
, QemuOpts
*opts
, Error
**errp
)
546 const char *proc_name
;
548 if (qemu_opt_get(opts
, "debug-threads")) {
549 qemu_thread_naming(qemu_opt_get_bool(opts
, "debug-threads", false));
551 qemu_name
= qemu_opt_get(opts
, "guest");
553 proc_name
= qemu_opt_get(opts
, "process");
555 os_set_proc_name(proc_name
);
561 bool defaults_enabled(void)
567 static int parse_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
569 int fd
, dupfd
, flags
;
571 const char *fd_opaque
= NULL
;
574 fd
= qemu_opt_get_number(opts
, "fd", -1);
575 fdset_id
= qemu_opt_get_number(opts
, "set", -1);
576 fd_opaque
= qemu_opt_get(opts
, "opaque");
579 error_setg(errp
, "fd option is required and must be non-negative");
583 if (fd
<= STDERR_FILENO
) {
584 error_setg(errp
, "fd cannot be a standard I/O stream");
589 * All fds inherited across exec() necessarily have FD_CLOEXEC
590 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
592 flags
= fcntl(fd
, F_GETFD
);
593 if (flags
== -1 || (flags
& FD_CLOEXEC
)) {
594 error_setg(errp
, "fd is not valid or already in use");
599 error_setg(errp
, "set option is required and must be non-negative");
603 #ifdef F_DUPFD_CLOEXEC
604 dupfd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
608 qemu_set_cloexec(dupfd
);
612 error_setg(errp
, "error duplicating fd: %s", strerror(errno
));
616 /* add the duplicate fd, and optionally the opaque string, to the fd set */
617 fdinfo
= monitor_fdset_add_fd(dupfd
, true, fdset_id
, fd_opaque
,
624 static int cleanup_add_fd(void *opaque
, QemuOpts
*opts
, Error
**errp
)
628 fd
= qemu_opt_get_number(opts
, "fd", -1);
635 /***********************************************************/
636 /* QEMU Block devices */
638 #define HD_OPTS "media=disk"
639 #define CDROM_OPTS "media=cdrom"
641 #define PFLASH_OPTS ""
645 static int drive_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
647 BlockInterfaceType
*block_default_type
= opaque
;
649 return drive_new(opts
, *block_default_type
, errp
) == NULL
;
652 static int drive_enable_snapshot(void *opaque
, QemuOpts
*opts
, Error
**errp
)
654 if (qemu_opt_get(opts
, "snapshot") == NULL
) {
655 qemu_opt_set(opts
, "snapshot", "on", &error_abort
);
660 static void default_drive(int enable
, int snapshot
, BlockInterfaceType type
,
661 int index
, const char *optstr
)
666 if (!enable
|| drive_get_by_index(type
, index
)) {
670 opts
= drive_add(type
, index
, NULL
, optstr
);
672 drive_enable_snapshot(NULL
, opts
, NULL
);
675 dinfo
= drive_new(opts
, type
, &error_abort
);
676 dinfo
->is_default
= true;
680 static void configure_blockdev(BlockdevOptionsQueue
*bdo_queue
,
681 MachineClass
*machine_class
, int snapshot
)
684 * If the currently selected machine wishes to override the
685 * units-per-bus property of its default HBA interface type, do so
688 if (machine_class
->units_per_default_bus
) {
689 override_max_devs(machine_class
->block_default_type
,
690 machine_class
->units_per_default_bus
);
693 /* open the virtual block devices */
694 while (!QSIMPLEQ_EMPTY(bdo_queue
)) {
695 BlockdevOptionsQueueEntry
*bdo
= QSIMPLEQ_FIRST(bdo_queue
);
697 QSIMPLEQ_REMOVE_HEAD(bdo_queue
, entry
);
698 loc_push_restore(&bdo
->loc
);
699 qmp_blockdev_add(bdo
->bdo
, &error_fatal
);
701 qapi_free_BlockdevOptions(bdo
->bdo
);
705 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot
,
708 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func
,
709 &machine_class
->block_default_type
, &error_fatal
)) {
710 /* We printed help */
714 default_drive(default_cdrom
, snapshot
, machine_class
->block_default_type
, 2,
716 default_drive(default_floppy
, snapshot
, IF_FLOPPY
, 0, FD_OPTS
);
717 default_drive(default_sdcard
, snapshot
, IF_SD
, 0, SD_OPTS
);
721 static QemuOptsList qemu_smp_opts
= {
723 .implied_opt_name
= "cpus",
725 .head
= QTAILQ_HEAD_INITIALIZER(qemu_smp_opts
.head
),
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
,
747 .type
= QEMU_OPT_NUMBER
,
750 .type
= QEMU_OPT_NUMBER
,
753 .type
= QEMU_OPT_NUMBER
,
759 #if defined(CONFIG_POSIX)
760 static QemuOptsList qemu_run_with_opts
= {
762 .head
= QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts
.head
),
764 #if defined(CONFIG_LINUX)
766 .name
= "async-teardown",
767 .type
= QEMU_OPT_BOOL
,
772 .type
= QEMU_OPT_STRING
,
774 { /* end of list */ }
778 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
782 #define qemu_add_run_with_opts()
784 #endif /* CONFIG_POSIX */
786 static void realtime_init(void)
789 if (os_mlock() < 0) {
790 error_report("locking memory failed");
797 static void configure_msg(QemuOpts
*opts
)
799 message_with_timestamp
= qemu_opt_get_bool(opts
, "timestamp", false);
800 error_with_guestname
= qemu_opt_get_bool(opts
, "guest-name", false);
804 /***********************************************************/
807 static int usb_device_add(const char *devname
)
809 USBDevice
*dev
= NULL
;
811 if (!machine_usb(current_machine
)) {
815 dev
= usbdevice_create(devname
);
822 static int usb_parse(const char *cmdline
)
825 r
= usb_device_add(cmdline
);
827 error_report("could not add USB device '%s'", cmdline
);
832 /***********************************************************/
833 /* machine registration */
835 static MachineClass
*find_machine(const char *name
, GSList
*machines
)
839 for (el
= machines
; el
; el
= el
->next
) {
840 MachineClass
*mc
= el
->data
;
842 if (!strcmp(mc
->name
, name
) || !g_strcmp0(mc
->alias
, name
)) {
850 static MachineClass
*find_default_machine(GSList
*machines
)
853 MachineClass
*default_machineclass
= NULL
;
855 for (el
= machines
; el
; el
= el
->next
) {
856 MachineClass
*mc
= el
->data
;
858 if (mc
->is_default
) {
859 assert(default_machineclass
== NULL
&& "Multiple default machines");
860 default_machineclass
= mc
;
864 return default_machineclass
;
867 static void version(void)
869 printf("QEMU emulator version " QEMU_FULL_VERSION
"\n"
870 QEMU_COPYRIGHT
"\n");
873 static void help(int exitcode
)
876 printf("usage: %s [options] [disk_image]\n\n"
877 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 if ((arch_mask) & arch_type) \
882 fputs(opt_help, stdout);
884 #define ARCHHEADING(text, arch_mask) \
885 if ((arch_mask) & arch_type) \
886 puts(stringify(text));
888 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
890 #include "qemu-options.def"
892 printf("\nDuring emulation, the following keys are useful:\n"
893 "ctrl-alt-f toggle full screen\n"
894 "ctrl-alt-n switch to virtual console 'n'\n"
895 "ctrl-alt toggle mouse and keyboard grab\n"
897 "When using -nographic, press 'ctrl-a h' to get some help.\n"
899 QEMU_HELP_BOTTOM
"\n");
906 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
908 #define DEFHEADING(text)
909 #define ARCHHEADING(text, arch_mask)
911 #include "qemu-options.def"
914 #define HAS_ARG 0x0001
916 typedef struct QEMUOption
{
923 static const QEMUOption qemu_options
[] = {
924 { "h", 0, QEMU_OPTION_h
, QEMU_ARCH_ALL
},
926 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
927 { option, opt_arg, opt_enum, arch_mask },
928 #define DEFHEADING(text)
929 #define ARCHHEADING(text, arch_mask)
931 #include "qemu-options.def"
932 { /* end of list */ }
935 typedef struct VGAInterfaceInfo
{
936 const char *opt_name
; /* option name */
937 const char *name
; /* human-readable name */
938 /* Class names indicating that support is available.
939 * If no class is specified, the interface is always available */
940 const char *class_names
[2];
943 static const VGAInterfaceInfo vga_interfaces
[VGA_TYPE_MAX
] = {
946 .name
= "no graphic card",
950 .name
= "standard VGA",
951 .class_names
= { "VGA", "isa-vga" },
954 .opt_name
= "cirrus",
955 .name
= "Cirrus VGA",
956 .class_names
= { "cirrus-vga", "isa-cirrus-vga" },
959 .opt_name
= "vmware",
960 .name
= "VMWare SVGA",
961 .class_names
= { "vmware-svga" },
964 .opt_name
= "virtio",
965 .name
= "Virtio VGA",
966 .class_names
= { "virtio-vga" },
971 .class_names
= { "qxl-vga" },
975 .name
= "TCX framebuffer",
976 .class_names
= { "sun-tcx" },
980 .name
= "CG3 framebuffer",
981 .class_names
= { "cgthree" },
983 #ifdef CONFIG_XEN_BACKEND
986 .name
= "Xen paravirtualized framebuffer",
991 static bool vga_interface_available(VGAInterfaceType t
)
993 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
995 assert(t
< VGA_TYPE_MAX
);
996 return !ti
->class_names
[0] ||
997 module_object_class_by_name(ti
->class_names
[0]) ||
998 module_object_class_by_name(ti
->class_names
[1]);
1002 get_default_vga_model(const MachineClass
*machine_class
)
1004 if (machine_class
->default_display
) {
1005 for (int t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1006 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1008 if (ti
->opt_name
&& vga_interface_available(t
) &&
1009 g_str_equal(ti
->opt_name
, machine_class
->default_display
)) {
1010 return machine_class
->default_display
;
1014 warn_report_once("Default display '%s' is not available in this binary",
1015 machine_class
->default_display
);
1017 } else if (vga_interface_available(VGA_CIRRUS
)) {
1019 } else if (vga_interface_available(VGA_STD
)) {
1026 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
1031 if (g_str_equal(p
, "help")) {
1032 const char *def
= get_default_vga_model(machine_class
);
1034 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1035 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1037 if (vga_interface_available(t
) && ti
->opt_name
) {
1038 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
1039 (def
&& g_str_equal(ti
->opt_name
, def
)) ?
1046 assert(vga_interface_type
== VGA_NONE
);
1047 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
1048 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
1049 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
1050 if (!vga_interface_available(t
)) {
1051 error_report("%s not available", ti
->name
);
1054 vga_interface_type
= t
;
1058 if (t
== VGA_TYPE_MAX
) {
1060 error_report("unknown vga type: %s", p
);
1064 const char *nextopt
;
1066 if (strstart(opts
, ",retrace=", &nextopt
)) {
1068 if (strstart(opts
, "dumb", &nextopt
))
1069 vga_retrace_method
= VGA_RETRACE_DUMB
;
1070 else if (strstart(opts
, "precise", &nextopt
))
1071 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1072 else goto invalid_vga
;
1073 } else goto invalid_vga
;
1078 static void parse_display_qapi(const char *str
)
1080 DisplayOptions
*opts
;
1083 v
= qobject_input_visitor_new_str(str
, "type", &error_fatal
);
1085 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1086 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1088 qapi_free_DisplayOptions(opts
);
1092 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1094 return QAPI_CLONE(DisplayOptions
, &dpy
);
1097 static void parse_display(const char *p
)
1099 if (is_help_option(p
)) {
1100 qemu_display_help();
1107 if (strstart(p
, "vnc", &opts
)) {
1109 * vnc isn't a (local) DisplayType but a protocol for remote
1113 vnc_parse(opts
+ 1);
1116 error_report("VNC requires a display argument vnc=<display>");
1123 parse_display_qapi(p
);
1126 static inline bool nonempty_str(const char *str
)
1131 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1135 const char *name
, *file
, *str
, *gen_id
;
1136 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1138 if (fw_cfg
== NULL
) {
1139 error_setg(errp
, "fw_cfg device not available");
1142 name
= qemu_opt_get(opts
, "name");
1143 file
= qemu_opt_get(opts
, "file");
1144 str
= qemu_opt_get(opts
, "string");
1145 gen_id
= qemu_opt_get(opts
, "gen_id");
1147 /* we need the name, and exactly one of: file, content string, gen_id */
1148 if (!nonempty_str(name
) ||
1149 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1150 error_setg(errp
, "name, plus exactly one of file,"
1151 " string and gen_id, are needed");
1154 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1155 error_setg(errp
, "name too long (max. %d char)",
1156 FW_CFG_MAX_FILE_PATH
- 1);
1159 if (nonempty_str(gen_id
)) {
1161 * In this particular case where the content is populated
1162 * internally, the "etc/" namespace protection is relaxed,
1163 * so do not emit a warning.
1165 } else if (strncmp(name
, "opt/", 4) != 0) {
1166 warn_report("externally provided fw_cfg item names "
1167 "should be prefixed with \"opt/\"");
1169 if (nonempty_str(str
)) {
1170 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1171 buf
= g_memdup(str
, size
);
1172 } else if (nonempty_str(gen_id
)) {
1173 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1179 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1180 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1185 /* For legacy, keep user files in a specific global order. */
1186 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1187 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1188 fw_cfg_reset_order_override(fw_cfg
);
1192 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1194 return qdev_device_help(opts
);
1197 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1201 dev
= qdev_device_add(opts
, errp
);
1202 if (!dev
&& *errp
) {
1203 error_report_err(*errp
);
1206 object_unref(OBJECT(dev
));
1211 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1213 Error
*local_err
= NULL
;
1215 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1217 error_propagate(errp
, local_err
);
1225 #ifdef CONFIG_VIRTFS
1226 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1228 return qemu_fsdev_add(opts
, errp
);
1232 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1234 return monitor_init_opts(opts
, errp
);
1237 static void monitor_parse(const char *str
, const char *mode
, bool pretty
)
1239 static int monitor_device_index
= 0;
1244 if (strstart(str
, "chardev:", &p
)) {
1245 snprintf(label
, sizeof(label
), "%s", p
);
1247 snprintf(label
, sizeof(label
), "compat_monitor%d",
1248 monitor_device_index
);
1249 opts
= qemu_chr_parse_compat(label
, str
, true);
1251 error_report("parse error: %s", str
);
1256 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1257 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1258 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1259 if (!strcmp(mode
, "control")) {
1260 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1262 assert(pretty
== false);
1264 monitor_device_index
++;
1267 struct device_config
{
1269 DEV_USB
, /* -usbdevice */
1270 DEV_SERIAL
, /* -serial */
1271 DEV_PARALLEL
, /* -parallel */
1272 DEV_DEBUGCON
, /* -debugcon */
1273 DEV_GDB
, /* -gdb, -s */
1274 DEV_SCLP
, /* s390 sclp */
1276 const char *cmdline
;
1278 QTAILQ_ENTRY(device_config
) next
;
1281 static QTAILQ_HEAD(, device_config
) device_configs
=
1282 QTAILQ_HEAD_INITIALIZER(device_configs
);
1284 static void add_device_config(int type
, const char *cmdline
)
1286 struct device_config
*conf
;
1288 conf
= g_malloc0(sizeof(*conf
));
1290 conf
->cmdline
= cmdline
;
1291 loc_save(&conf
->loc
);
1292 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1295 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1297 struct device_config
*conf
;
1300 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1301 if (conf
->type
!= type
)
1303 loc_push_restore(&conf
->loc
);
1304 rc
= func(conf
->cmdline
);
1305 loc_pop(&conf
->loc
);
1313 static void qemu_disable_default_devices(void)
1315 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1317 default_driver_check_json();
1318 qemu_opts_foreach(qemu_find_opts("device"),
1319 default_driver_check
, NULL
, NULL
);
1320 qemu_opts_foreach(qemu_find_opts("global"),
1321 default_driver_check
, NULL
, NULL
);
1323 if (!vga_model
&& !default_vga
) {
1324 vga_interface_type
= VGA_DEVICE
;
1325 vga_interface_created
= true;
1327 if (!has_defaults
|| machine_class
->no_serial
) {
1330 if (!has_defaults
|| machine_class
->no_parallel
) {
1331 default_parallel
= 0;
1333 if (!has_defaults
|| machine_class
->no_floppy
) {
1336 if (!has_defaults
|| machine_class
->no_cdrom
) {
1339 if (!has_defaults
|| machine_class
->no_sdcard
) {
1342 if (!has_defaults
) {
1344 default_monitor
= 0;
1348 if (default_net
&& machine_class
->default_nic
&&
1349 !module_object_class_by_name(machine_class
->default_nic
)) {
1350 warn_report("Default NIC '%s' is not available in this binary",
1351 machine_class
->default_nic
);
1357 static void qemu_setup_display(void)
1359 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1360 if (!qemu_display_find_default(&dpy
)) {
1361 dpy
.type
= DISPLAY_TYPE_NONE
;
1362 #if defined(CONFIG_VNC)
1363 vnc_parse("localhost:0,to=99,id=default");
1368 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1369 dpy
.type
= DISPLAY_TYPE_NONE
;
1372 qemu_display_early_init(&dpy
);
1375 static void qemu_create_default_devices(void)
1377 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1378 const char *vc
= qemu_display_get_vc(&dpy
);
1380 if (is_daemonized()) {
1381 /* According to documentation and historically, -nographic redirects
1382 * serial port, parallel port and monitor to stdio, which does not work
1383 * with -daemonize. We can redirect these to null instead, but since
1384 * -nographic is legacy, let's just error out.
1385 * We disallow -nographic only if all other ports are not redirected
1386 * explicitly, to not break existing legacy setups which uses
1387 * -nographic _and_ redirects all ports explicitly - this is valid
1388 * usage, -nographic is just a no-op in this case.
1391 && (default_parallel
|| default_serial
|| default_monitor
)) {
1392 error_report("-nographic cannot be used with -daemonize");
1398 if (default_parallel
) {
1399 add_device_config(DEV_PARALLEL
, "null");
1401 if (default_serial
&& default_monitor
) {
1402 add_device_config(DEV_SERIAL
, "mon:stdio");
1404 if (default_serial
) {
1405 add_device_config(DEV_SERIAL
, "stdio");
1407 if (default_monitor
) {
1408 monitor_parse("stdio", "readline", false);
1412 if (default_serial
) {
1413 add_device_config(DEV_SERIAL
, vc
?: "null");
1415 if (default_parallel
) {
1416 add_device_config(DEV_PARALLEL
, vc
?: "null");
1418 if (default_monitor
&& vc
) {
1419 monitor_parse(vc
, "readline", false);
1424 QemuOptsList
*net
= qemu_find_opts("net");
1425 qemu_opts_parse(net
, "nic", true, &error_abort
);
1427 qemu_opts_parse(net
, "user", true, &error_abort
);
1431 /* If no default VGA is requested, the default is "none". */
1433 vga_model
= get_default_vga_model(machine_class
);
1436 select_vgahw(machine_class
, vga_model
);
1440 static int serial_parse(const char *devname
)
1442 int index
= num_serial_hds
;
1445 if (strcmp(devname
, "none") == 0)
1447 snprintf(label
, sizeof(label
), "serial%d", index
);
1448 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1450 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1451 if (!serial_hds
[index
]) {
1452 error_report("could not connect serial device"
1453 " to character backend '%s'", devname
);
1460 Chardev
*serial_hd(int i
)
1463 if (i
< num_serial_hds
) {
1464 return serial_hds
[i
];
1469 static int parallel_parse(const char *devname
)
1471 static int index
= 0;
1474 if (strcmp(devname
, "none") == 0)
1476 if (index
== MAX_PARALLEL_PORTS
) {
1477 error_report("too many parallel ports");
1480 snprintf(label
, sizeof(label
), "parallel%d", index
);
1481 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1482 if (!parallel_hds
[index
]) {
1483 error_report("could not connect parallel device"
1484 " to character backend '%s'", devname
);
1491 static int debugcon_parse(const char *devname
)
1495 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1496 error_report("invalid character backend '%s'", devname
);
1499 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1501 error_report("already have a debugcon device");
1504 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1505 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1509 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1511 const MachineClass
*mc1
= a
, *mc2
= b
;
1514 if (mc1
->family
== NULL
) {
1515 if (mc2
->family
== NULL
) {
1516 /* Compare standalone machine types against each other; they sort
1517 * in increasing order.
1519 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1520 object_class_get_name(OBJECT_CLASS(mc2
)));
1523 /* Standalone machine types sort after families. */
1527 if (mc2
->family
== NULL
) {
1528 /* Families sort before standalone machine types. */
1532 /* Families sort between each other alphabetically increasingly. */
1533 res
= strcmp(mc1
->family
, mc2
->family
);
1538 /* Within the same family, machine types sort in decreasing order. */
1539 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1540 object_class_get_name(OBJECT_CLASS(mc1
)));
1543 static void machine_help_func(const QDict
*qdict
)
1545 g_autoptr(GSList
) machines
= NULL
;
1547 const char *type
= qdict_get_try_str(qdict
, "type");
1549 machines
= object_class_get_list(TYPE_MACHINE
, false);
1551 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1552 if (machine_class
) {
1553 type_print_class_properties(object_class_get_name(machine_class
));
1558 printf("Supported machines are:\n");
1559 machines
= g_slist_sort(machines
, machine_class_cmp
);
1560 for (el
= machines
; el
; el
= el
->next
) {
1561 MachineClass
*mc
= el
->data
;
1563 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1565 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1566 mc
->is_default
? " (default)" : "",
1567 mc
->deprecation_reason
? " (deprecated)" : "");
1572 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1577 /* Preserve the caller's reference to prop. */
1579 qdict_put(opts
, propname
, prop
);
1580 keyval_merge(machine_opts_dict
, opts
, errp
);
1581 qobject_unref(opts
);
1585 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1591 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1593 qemu_opts_print_help(opts_list
, true);
1596 machine_merge_property(propname
, prop
, &error_fatal
);
1597 qobject_unref(prop
);
1600 static const char *pid_file
;
1601 struct UnlinkPidfileNotifier
{
1603 char *pid_file_realpath
;
1605 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier
;
1607 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1609 struct UnlinkPidfileNotifier
*upn
;
1611 upn
= DO_UPCAST(struct UnlinkPidfileNotifier
, notifier
, n
);
1612 unlink(upn
->pid_file_realpath
);
1615 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1616 const char **poptarg
, int *poptind
)
1618 const QEMUOption
*popt
;
1619 int optind
= *poptind
;
1620 char *r
= argv
[optind
];
1623 loc_set_cmdline(argv
, optind
, 1);
1625 /* Treat --foo the same as -foo. */
1628 popt
= qemu_options
;
1631 error_report("invalid option");
1634 if (!strcmp(popt
->name
, r
+ 1))
1638 if (popt
->flags
& HAS_ARG
) {
1639 if (optind
>= argc
) {
1640 error_report("requires an argument");
1643 optarg
= argv
[optind
++];
1644 loc_set_cmdline(argv
, optind
- 2, 2);
1655 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1657 const char *machine_type
= qdict_get_try_str(qdict
, "type");
1658 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1659 MachineClass
*machine_class
;
1660 Error
*local_err
= NULL
;
1663 machine_class
= find_machine(machine_type
, machines
);
1664 qdict_del(qdict
, "type");
1665 if (!machine_class
) {
1666 error_setg(&local_err
, "unsupported machine type");
1669 machine_class
= find_default_machine(machines
);
1670 if (!machine_class
) {
1671 error_setg(&local_err
, "No machine specified, and there is no default");
1675 g_slist_free(machines
);
1677 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1678 error_propagate(errp
, local_err
);
1680 return machine_class
;
1683 static int object_parse_property_opt(Object
*obj
,
1684 const char *name
, const char *value
,
1685 const char *skip
, Error
**errp
)
1687 if (g_str_equal(name
, skip
)) {
1691 if (!object_property_parse(obj
, name
, value
, errp
)) {
1698 /* *Non*recursively replace underscores with dashes in QDict keys. */
1699 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1701 const QDictEntry
*ent
, *next
;
1704 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1705 g_autofree
char *new_key
= NULL
;
1707 next
= qdict_next(qdict
, ent
);
1708 if (!strchr(ent
->key
, '_')) {
1711 new_key
= g_strdup(ent
->key
);
1712 for (p
= new_key
; *p
; p
++) {
1717 if (qdict_haskey(qdict
, new_key
)) {
1718 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1721 qobject_ref(ent
->value
);
1722 qdict_put_obj(qdict
, new_key
, ent
->value
);
1723 qdict_del(qdict
, ent
->key
);
1727 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1732 keyval_dashify(qdict
, &error_fatal
);
1734 /* Legacy options do not correspond to MachineState properties. */
1735 value
= qdict_get_try_str(qdict
, "accel");
1737 accelerators
= g_strdup(value
);
1738 qdict_del(qdict
, "accel");
1741 value
= qdict_get_try_str(qdict
, "igd-passthru");
1743 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1745 qdict_del(qdict
, "igd-passthru");
1748 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1750 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1752 qdict_del(qdict
, "kvm-shadow-mem");
1755 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1757 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1759 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1761 qdict_del(qdict
, "kernel-irqchip");
1764 value
= qdict_get_try_str(qdict
, "memory-backend");
1767 error_report("'-mem-path' can't be used together with"
1768 "'-machine memory-backend'");
1772 /* Resolved later. */
1773 ram_memdev_id
= g_strdup(value
);
1774 qdict_del(qdict
, "memory-backend");
1777 prop
= qdict_get(qdict
, "memory");
1779 have_custom_ram_size
=
1780 qobject_type(prop
) == QTYPE_QDICT
&&
1781 qdict_haskey(qobject_to(QDict
, prop
), "size");
1785 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1787 ObjectOption
*opt
, *next
;
1789 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1790 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1791 if (type_opt_predicate(type
)) {
1792 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1793 qapi_free_ObjectOptions(opt
->opts
);
1794 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1800 static void object_option_add_visitor(Visitor
*v
)
1802 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1803 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1804 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1807 static void object_option_parse(const char *str
)
1813 if (str
[0] == '{') {
1814 QObject
*obj
= qobject_from_json(str
, &error_fatal
);
1816 v
= qobject_input_visitor_new(obj
);
1819 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1825 type
= qemu_opt_get(opts
, "qom-type");
1827 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1829 if (user_creatable_print_help(type
, opts
)) {
1833 v
= opts_visitor_new(opts
);
1836 object_option_add_visitor(v
);
1841 * Very early object creation, before the sandbox options have been activated.
1843 static bool object_create_pre_sandbox(const char *type
)
1846 * Objects should in general not get initialized "too early" without
1847 * a reason. If you add one, state the reason in a comment!
1851 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1852 * affinity of threads.
1854 if (g_str_equal(type
, "thread-context")) {
1862 * Initial object creation happens before all other
1863 * QEMU data types are created. The majority of objects
1864 * can be created at this point. The rng-egd object
1865 * cannot be created here, as it depends on the chardev
1868 static bool object_create_early(const char *type
)
1871 * Objects should not be made "delayed" without a reason. If you
1872 * add one, state the reason in a comment!
1875 /* Reason: already created. */
1876 if (object_create_pre_sandbox(type
)) {
1880 /* Reason: property "chardev" */
1881 if (g_str_equal(type
, "rng-egd") ||
1882 g_str_equal(type
, "qtest")) {
1886 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1887 /* Reason: cryptodev-vhost-user property "chardev" */
1888 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1893 /* Reason: vhost-user-blk-server property "node-name" */
1894 if (g_str_equal(type
, "vhost-user-blk-server")) {
1898 * Reason: filter-* property "netdev" etc.
1900 if (g_str_equal(type
, "filter-buffer") ||
1901 g_str_equal(type
, "filter-dump") ||
1902 g_str_equal(type
, "filter-mirror") ||
1903 g_str_equal(type
, "filter-redirector") ||
1904 g_str_equal(type
, "colo-compare") ||
1905 g_str_equal(type
, "filter-rewriter") ||
1906 g_str_equal(type
, "filter-replay")) {
1911 * Allocation of large amounts of memory may delay
1912 * chardev initialization for too long, and trigger timeouts
1913 * on software that waits for a monitor socket to be created
1916 if (g_str_has_prefix(type
, "memory-backend-")) {
1923 static void qemu_apply_machine_options(QDict
*qdict
)
1925 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1927 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1928 /* fall back to the -kernel/-append */
1929 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1932 if (current_machine
->smp
.cpus
> 1) {
1933 replay_add_blocker("smp");
1937 static void qemu_create_early_backends(void)
1939 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1940 #if defined(CONFIG_SDL)
1941 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1943 const bool use_sdl
= false;
1945 #if defined(CONFIG_GTK)
1946 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1948 const bool use_gtk
= false;
1951 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1952 error_report("window-close is only valid for GTK and SDL, "
1956 qemu_console_early_init();
1958 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1959 #if defined(CONFIG_OPENGL)
1960 error_report("OpenGL is not supported by the display");
1962 error_report("OpenGL support is disabled");
1967 object_option_foreach_add(object_create_early
);
1969 /* spice needs the timers to be initialized by this point */
1970 /* spice must initialize before audio as it changes the default audiodev */
1971 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1974 qemu_opts_foreach(qemu_find_opts("chardev"),
1975 chardev_init_func
, NULL
, &error_fatal
);
1977 #ifdef CONFIG_VIRTFS
1978 qemu_opts_foreach(qemu_find_opts("fsdev"),
1979 fsdev_init_func
, NULL
, &error_fatal
);
1983 * Note: we need to create audio and block backends before
1984 * setting machine properties, so they can be referred to.
1986 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1987 audio_init_audiodevs();
1988 if (default_audio
) {
1989 audio_create_default_audiodevs();
1995 * The remainder of object creation happens after the
1996 * creation of chardev, fsdev, net clients and device data types.
1998 static bool object_create_late(const char *type
)
2000 return !object_create_early(type
) && !object_create_pre_sandbox(type
);
2003 static void qemu_create_late_backends(void)
2006 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
2011 object_option_foreach_add(object_create_late
);
2013 if (tpm_init() < 0) {
2017 qemu_opts_foreach(qemu_find_opts("mon"),
2018 mon_init_func
, NULL
, &error_fatal
);
2020 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
2022 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
2024 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
2027 /* now chardevs have been created we may have semihosting to connect */
2028 qemu_semihosting_chardev_init();
2031 static void qemu_resolve_machine_memdev(void)
2033 if (ram_memdev_id
) {
2035 ram_addr_t backend_size
;
2037 backend
= object_resolve_path_type(ram_memdev_id
,
2038 TYPE_MEMORY_BACKEND
, NULL
);
2040 error_report("Memory backend '%s' not found", ram_memdev_id
);
2043 if (!have_custom_ram_size
) {
2044 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
2045 current_machine
->ram_size
= backend_size
;
2047 object_property_set_link(OBJECT(current_machine
),
2048 "memory-backend", backend
, &error_fatal
);
2052 static void parse_memory_options(void)
2054 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2056 const char *mem_str
;
2059 loc_push_none(&loc
);
2060 qemu_opts_loc_restore(opts
);
2064 if (qemu_opt_get_size(opts
, "size", 0) != 0) {
2065 /* Fix up legacy suffix-less format */
2066 mem_str
= qemu_opt_get(opts
, "size");
2067 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2068 g_autofree
char *mib_str
= g_strdup_printf("%sM", mem_str
);
2069 qdict_put_str(prop
, "size", mib_str
);
2071 qdict_put_str(prop
, "size", mem_str
);
2075 if (qemu_opt_get(opts
, "maxmem")) {
2076 qdict_put_str(prop
, "max-size", qemu_opt_get(opts
, "maxmem"));
2078 if (qemu_opt_get(opts
, "slots")) {
2079 qdict_put_str(prop
, "slots", qemu_opt_get(opts
, "slots"));
2083 qdict_put(dict
, "memory", prop
);
2084 keyval_merge(machine_opts_dict
, dict
, &error_fatal
);
2085 qobject_unref(dict
);
2089 static void qemu_create_machine(QDict
*qdict
)
2091 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2092 object_set_machine_compat_props(machine_class
->compat_props
);
2094 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2095 object_property_add_child(object_get_root(), "machine",
2096 OBJECT(current_machine
));
2097 object_property_add_child(container_get(OBJECT(current_machine
),
2099 "sysbus", OBJECT(sysbus_get_default()));
2101 if (machine_class
->minimum_page_bits
) {
2102 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2103 /* This would be a board error: specifying a minimum smaller than
2104 * a target's compile-time fixed setting.
2106 g_assert_not_reached();
2110 cpu_exec_init_all();
2113 if (machine_class
->hw_version
) {
2114 qemu_set_hw_version(machine_class
->hw_version
);
2118 * Get the default machine options from the machine if it is not already
2119 * specified either by the configuration file or by the command line.
2121 if (machine_class
->default_machine_opts
) {
2122 QDict
*default_opts
=
2123 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2125 qemu_apply_legacy_machine_options(default_opts
);
2126 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2127 false, &error_abort
);
2128 qobject_unref(default_opts
);
2132 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2136 g
= g_malloc0(sizeof(*g
));
2137 g
->driver
= qemu_opt_get(opts
, "driver");
2138 g
->property
= qemu_opt_get(opts
, "property");
2139 g
->value
= qemu_opt_get(opts
, "value");
2140 qdev_prop_register_global(g
);
2145 * Return whether configuration group @group is stored in QemuOpts, or
2146 * recorded as one or more QDicts by qemu_record_config_group.
2148 static bool is_qemuopts_group(const char *group
)
2150 if (g_str_equal(group
, "object") ||
2151 g_str_equal(group
, "audiodev") ||
2152 g_str_equal(group
, "machine") ||
2153 g_str_equal(group
, "smp-opts") ||
2154 g_str_equal(group
, "boot-opts")) {
2160 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2161 bool from_json
, Error
**errp
)
2163 if (g_str_equal(group
, "object")) {
2164 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2165 object_option_add_visitor(v
);
2168 } else if (g_str_equal(group
, "audiodev")) {
2169 Audiodev
*dev
= NULL
;
2170 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2171 if (visit_type_Audiodev(v
, NULL
, &dev
, errp
)) {
2176 } else if (g_str_equal(group
, "machine")) {
2178 * Cannot merge string-valued and type-safe dictionaries, so JSON
2179 * is not accepted yet for -M.
2182 keyval_merge(machine_opts_dict
, dict
, errp
);
2183 } else if (g_str_equal(group
, "smp-opts")) {
2184 machine_merge_property("smp", dict
, &error_fatal
);
2185 } else if (g_str_equal(group
, "boot-opts")) {
2186 machine_merge_property("boot", dict
, &error_fatal
);
2193 * Parse non-QemuOpts config file groups, pass the rest to
2194 * qemu_config_do_parse.
2196 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2197 void *opaque
, Error
**errp
)
2200 if (is_qemuopts_group(group
)) {
2201 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2205 crumpled
= qdict_crumple(qdict
, errp
);
2209 switch (qobject_type(crumpled
)) {
2211 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2214 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2217 g_assert_not_reached();
2219 qobject_unref(crumpled
);
2222 static void qemu_read_default_config_file(Error
**errp
)
2226 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2228 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2230 if (ret
== -ENOENT
) {
2237 static void qemu_set_option(const char *str
, Error
**errp
)
2239 char group
[64], id
[64], arg
[64];
2244 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2245 if (rc
< 3 || str
[offset
] != '=') {
2246 error_setg(errp
, "can't parse: \"%s\"", str
);
2250 if (!is_qemuopts_group(group
)) {
2251 error_setg(errp
, "-set is not supported with %s", group
);
2253 list
= qemu_find_opts_err(group
, errp
);
2255 opts
= qemu_opts_find(list
, id
);
2257 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2260 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2265 static void user_register_global_props(void)
2267 qemu_opts_foreach(qemu_find_opts("global"),
2268 global_init_func
, NULL
, NULL
);
2271 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2273 icount_configure(opts
, errp
);
2277 static int accelerator_set_property(void *opaque
,
2278 const char *name
, const char *value
,
2281 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2284 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2286 bool *p_init_failed
= opaque
;
2287 const char *acc
= qemu_opt_get(opts
, "accel");
2288 AccelClass
*ac
= accel_find(acc
);
2291 bool qtest_with_kvm
;
2294 error_setg(errp
, QERR_MISSING_PARAMETER
, "accel");
2298 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2301 if (!qtest_with_kvm
) {
2302 error_report("invalid accelerator %s", acc
);
2306 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2307 object_apply_compat_props(OBJECT(accel
));
2308 qemu_opt_foreach(opts
, accelerator_set_property
,
2312 * If legacy -singlestep option is set, honour it for TCG and
2313 * silently ignore for any other accelerator (which is how this
2314 * option has always behaved).
2316 if (opt_one_insn_per_tb
) {
2318 * This will always succeed for TCG, and we want to ignore
2319 * the error from trying to set a nonexistent property
2320 * on any other accelerator.
2322 object_property_set_bool(OBJECT(accel
), "one-insn-per-tb", true, NULL
);
2324 ret
= accel_init_machine(accel
, current_machine
);
2326 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2327 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2335 *p_init_failed
= true;
2339 static void configure_accelerators(const char *progname
)
2341 bool init_failed
= false;
2343 qemu_opts_foreach(qemu_find_opts("icount"),
2344 do_configure_icount
, NULL
, &error_fatal
);
2346 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2347 char **accel_list
, **tmp
;
2349 if (accelerators
== NULL
) {
2350 /* Select the default accelerator */
2351 bool have_tcg
= accel_find("tcg");
2352 bool have_kvm
= accel_find("kvm");
2354 if (have_tcg
&& have_kvm
) {
2355 if (g_str_has_suffix(progname
, "kvm")) {
2356 /* If the program name ends with "kvm", we prefer KVM */
2357 accelerators
= "kvm:tcg";
2359 accelerators
= "tcg:kvm";
2361 } else if (have_kvm
) {
2362 accelerators
= "kvm";
2363 } else if (have_tcg
) {
2364 accelerators
= "tcg";
2366 error_report("No accelerator selected and"
2367 " no default accelerator available");
2371 accel_list
= g_strsplit(accelerators
, ":", 0);
2373 for (tmp
= accel_list
; *tmp
; tmp
++) {
2375 * Filter invalid accelerators here, to prevent obscenities
2376 * such as "-machine accel=tcg,,thread=single".
2378 if (accel_find(*tmp
)) {
2379 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2382 error_report("invalid accelerator %s", *tmp
);
2385 g_strfreev(accel_list
);
2387 if (accelerators
!= NULL
) {
2388 error_report("The -accel and \"-machine accel=\" options are incompatible");
2393 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2394 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2396 error_report("no accelerator found");
2401 if (init_failed
&& !qtest_chrdev
) {
2402 error_report("falling back to %s", current_accel_name());
2405 if (icount_enabled() && !tcg_enabled()) {
2406 error_report("-icount is not allowed with hardware virtualization");
2411 static void qemu_validate_options(const QDict
*machine_opts
)
2413 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2414 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2415 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2417 if (kernel_filename
== NULL
) {
2418 if (kernel_cmdline
!= NULL
) {
2419 error_report("-append only allowed with -kernel option");
2423 if (initrd_filename
!= NULL
) {
2424 error_report("-initrd only allowed with -kernel option");
2429 if (loadvm
&& incoming
) {
2430 error_report("'incoming' and 'loadvm' options are mutually exclusive");
2433 if (loadvm
&& preconfig_requested
) {
2434 error_report("'preconfig' and 'loadvm' options are "
2435 "mutually exclusive");
2438 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2439 error_report("'preconfig' supports '-incoming defer' only");
2443 #ifdef CONFIG_CURSES
2444 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2445 error_report("curses display cannot be used with -daemonize");
2451 static void qemu_process_sugar_options(void)
2454 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2455 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2456 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2457 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2458 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2459 object_register_sugar_prop("memory-backend", "prealloc-threads",
2463 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2467 /* -action processing */
2470 * Process all the -action parameters parsed from cmdline.
2472 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2474 Error
*local_err
= NULL
;
2475 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2476 QObject
*ret
= NULL
;
2477 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2479 qobject_unref(qdict
);
2481 error_propagate(errp
, local_err
);
2487 static void qemu_process_early_options(void)
2489 qemu_opts_foreach(qemu_find_opts("name"),
2490 parse_name
, NULL
, &error_fatal
);
2492 object_option_foreach_add(object_create_pre_sandbox
);
2494 #ifdef CONFIG_SECCOMP
2495 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2497 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2501 if (qemu_opts_foreach(qemu_find_opts("action"),
2502 process_runstate_actions
, NULL
, &error_fatal
)) {
2507 qemu_opts_foreach(qemu_find_opts("add-fd"),
2508 parse_add_fd
, NULL
, &error_fatal
);
2510 qemu_opts_foreach(qemu_find_opts("add-fd"),
2511 cleanup_add_fd
, NULL
, &error_fatal
);
2514 /* Open the logfile at this point and set the log mask if necessary. */
2518 mask
= qemu_str_to_log_mask(log_mask
);
2520 qemu_print_log_usage(stdout
);
2524 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2527 qemu_add_default_firmwarepath();
2530 static void qemu_process_help_options(void)
2533 * Check for -cpu help and -device help before we call select_machine(),
2534 * which will return an error if the architecture has no default machine
2535 * type and the user did not specify one, so that the user doesn't need
2536 * to say '-cpu help -machine something'.
2538 if (cpu_option
&& is_help_option(cpu_option
)) {
2543 if (qemu_opts_foreach(qemu_find_opts("device"),
2544 device_help_func
, NULL
, NULL
)) {
2548 /* -L help lists the data directories and exits. */
2549 if (list_data_dirs
) {
2550 qemu_list_data_dirs();
2555 static void qemu_maybe_daemonize(const char *pid_file
)
2560 rcu_disable_atfork();
2563 char *pid_file_realpath
= NULL
;
2565 if (!qemu_write_pidfile(pid_file
, &err
)) {
2566 error_reportf_err(err
, "cannot create PID file: ");
2570 pid_file_realpath
= g_malloc0(PATH_MAX
);
2571 if (!realpath(pid_file
, pid_file_realpath
)) {
2572 if (errno
!= ENOENT
) {
2573 warn_report("not removing PID file on exit: cannot resolve PID "
2574 "file path: %s: %s", pid_file
, strerror(errno
));
2579 qemu_unlink_pidfile_notifier
= (struct UnlinkPidfileNotifier
) {
2581 .notify
= qemu_unlink_pidfile
,
2583 .pid_file_realpath
= pid_file_realpath
,
2585 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
.notifier
);
2589 static void qemu_init_displays(void)
2593 /* init local displays */
2594 ds
= init_displaystate();
2595 qemu_display_init(ds
, &dpy
);
2597 /* must be after terminal init, SDL library changes signal handlers */
2598 os_setup_signal_handling();
2600 /* init remote displays */
2602 qemu_opts_foreach(qemu_find_opts("vnc"),
2603 vnc_init_func
, NULL
, &error_fatal
);
2607 qemu_spice
.display_init();
2611 static void qemu_init_board(void)
2613 /* process plugin before CPUs are created, but once -smp has been parsed */
2614 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2616 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2617 machine_run_board_init(current_machine
, mem_path
, &error_fatal
);
2619 drive_check_orphaned();
2624 static void qemu_create_cli_devices(void)
2630 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2631 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2633 /* init USB devices */
2634 if (machine_usb(current_machine
)) {
2635 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2639 /* init generic devices */
2640 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2641 qemu_opts_foreach(qemu_find_opts("device"),
2642 device_init_func
, NULL
, &error_fatal
);
2643 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2645 loc_push_restore(&opt
->loc
);
2647 * TODO Eventually we should call qmp_device_add() here to make sure it
2648 * behaves the same, but QMP still has to accept incorrectly typed
2649 * options until libvirt is fixed and we want to be strict on the CLI
2650 * from the start, so call qdev_device_add_from_qdict() directly for
2653 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2654 object_unref(OBJECT(dev
));
2657 rom_reset_order_override();
2660 static void qemu_machine_creation_done(void)
2662 MachineState
*machine
= MACHINE(qdev_get_machine());
2664 /* Did we create any drives that we failed to create a device for? */
2665 drive_check_orphaned();
2667 /* Don't warn about the default network setup that you get if
2668 * no command line -net or -netdev options are specified. There
2669 * are two cases that we would otherwise complain about:
2670 * (1) board doesn't support a NIC but the implicit "-net nic"
2672 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2673 * sets up a nic that isn't connected to anything.
2675 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2676 net_check_clients();
2679 qdev_prop_check_globals();
2681 qdev_machine_creation_done();
2685 * Verify that Confidential Guest Support has actually been initialized
2687 assert(machine
->cgs
->ready
);
2690 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2693 if (!vga_interface_created
&& !default_vga
&&
2694 vga_interface_type
!= VGA_NONE
) {
2695 warn_report("A -vga option was passed but this machine "
2696 "type does not use that option; "
2697 "No VGA device has been created");
2701 void qmp_x_exit_preconfig(Error
**errp
)
2703 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2704 error_setg(errp
, "The command is permitted only before machine initialization");
2709 qemu_create_cli_devices();
2710 qemu_machine_creation_done();
2713 RunState state
= autostart
? RUN_STATE_RUNNING
: runstate_get();
2714 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2715 load_snapshot_resume(state
);
2717 if (replay_mode
!= REPLAY_MODE_NONE
) {
2718 replay_vmstate_init();
2722 Error
*local_err
= NULL
;
2723 if (strcmp(incoming
, "defer") != 0) {
2724 qmp_migrate_incoming(incoming
, false, NULL
, &local_err
);
2726 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2730 } else if (autostart
) {
2735 void qemu_init(int argc
, char **argv
)
2738 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2739 QemuOptsList
*olist
;
2742 MachineClass
*machine_class
;
2743 bool userconfig
= true;
2744 FILE *vmstate_dump_file
= NULL
;
2746 qemu_add_opts(&qemu_drive_opts
);
2747 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2748 qemu_add_drive_opts(&qemu_common_drive_opts
);
2749 qemu_add_drive_opts(&qemu_drive_opts
);
2750 qemu_add_drive_opts(&bdrv_runtime_opts
);
2751 qemu_add_opts(&qemu_chardev_opts
);
2752 qemu_add_opts(&qemu_device_opts
);
2753 qemu_add_opts(&qemu_netdev_opts
);
2754 qemu_add_opts(&qemu_nic_opts
);
2755 qemu_add_opts(&qemu_net_opts
);
2756 qemu_add_opts(&qemu_rtc_opts
);
2757 qemu_add_opts(&qemu_global_opts
);
2758 qemu_add_opts(&qemu_mon_opts
);
2759 qemu_add_opts(&qemu_trace_opts
);
2760 qemu_plugin_add_opts();
2761 qemu_add_opts(&qemu_option_rom_opts
);
2762 qemu_add_opts(&qemu_accel_opts
);
2763 qemu_add_opts(&qemu_mem_opts
);
2764 qemu_add_opts(&qemu_smp_opts
);
2765 qemu_add_opts(&qemu_boot_opts
);
2766 qemu_add_opts(&qemu_add_fd_opts
);
2767 qemu_add_opts(&qemu_object_opts
);
2768 qemu_add_opts(&qemu_tpmdev_opts
);
2769 qemu_add_opts(&qemu_overcommit_opts
);
2770 qemu_add_opts(&qemu_msg_opts
);
2771 qemu_add_opts(&qemu_name_opts
);
2772 qemu_add_opts(&qemu_numa_opts
);
2773 qemu_add_opts(&qemu_icount_opts
);
2774 qemu_add_opts(&qemu_semihosting_config_opts
);
2775 qemu_add_opts(&qemu_fw_cfg_opts
);
2776 qemu_add_opts(&qemu_action_opts
);
2777 qemu_add_run_with_opts();
2778 module_call_init(MODULE_INIT_OPTS
);
2780 error_init(argv
[0]);
2781 qemu_init_exec_dir(argv
[0]);
2783 qemu_init_arch_modules();
2785 qemu_init_subsystems();
2787 /* first pass of option parsing */
2789 while (optind
< argc
) {
2790 if (argv
[optind
][0] != '-') {
2794 const QEMUOption
*popt
;
2796 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2797 switch (popt
->index
) {
2798 case QEMU_OPTION_nouserconfig
:
2805 machine_opts_dict
= qdict_new();
2807 qemu_read_default_config_file(&error_fatal
);
2810 /* second pass of option parsing */
2815 if (argv
[optind
][0] != '-') {
2816 loc_set_cmdline(argv
, optind
, 1);
2817 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2819 const QEMUOption
*popt
;
2821 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2822 if (!(popt
->arch_mask
& arch_type
)) {
2823 error_report("Option not supported for this target");
2826 switch(popt
->index
) {
2827 case QEMU_OPTION_cpu
:
2828 /* hw initialization will check this */
2829 cpu_option
= optarg
;
2831 case QEMU_OPTION_hda
:
2832 case QEMU_OPTION_hdb
:
2833 case QEMU_OPTION_hdc
:
2834 case QEMU_OPTION_hdd
:
2835 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2838 case QEMU_OPTION_blockdev
:
2841 BlockdevOptionsQueueEntry
*bdo
;
2843 v
= qobject_input_visitor_new_str(optarg
, "driver",
2846 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2847 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2850 loc_save(&bdo
->loc
);
2851 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2854 case QEMU_OPTION_drive
:
2855 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2861 case QEMU_OPTION_set
:
2862 qemu_set_option(optarg
, &error_fatal
);
2864 case QEMU_OPTION_global
:
2865 if (qemu_global_option(optarg
) != 0)
2868 case QEMU_OPTION_mtdblock
:
2869 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2871 case QEMU_OPTION_sd
:
2872 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2874 case QEMU_OPTION_pflash
:
2875 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2877 case QEMU_OPTION_snapshot
:
2879 replay_add_blocker("-snapshot");
2881 case QEMU_OPTION_numa
:
2882 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2888 case QEMU_OPTION_display
:
2889 parse_display(optarg
);
2891 case QEMU_OPTION_nographic
:
2892 qdict_put_str(machine_opts_dict
, "graphics", "off");
2894 dpy
.type
= DISPLAY_TYPE_NONE
;
2896 case QEMU_OPTION_portrait
:
2897 graphic_rotate
= 90;
2899 case QEMU_OPTION_rotate
:
2900 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2901 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2902 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2903 error_report("only 90, 180, 270 deg rotation is available");
2907 case QEMU_OPTION_kernel
:
2908 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2910 case QEMU_OPTION_initrd
:
2911 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2913 case QEMU_OPTION_append
:
2914 qdict_put_str(machine_opts_dict
, "append", optarg
);
2916 case QEMU_OPTION_dtb
:
2917 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2919 case QEMU_OPTION_cdrom
:
2920 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2922 case QEMU_OPTION_boot
:
2923 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2925 case QEMU_OPTION_fda
:
2926 case QEMU_OPTION_fdb
:
2927 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2930 case QEMU_OPTION_no_fd_bootchk
:
2933 case QEMU_OPTION_netdev
:
2935 if (netdev_is_modern(optarg
)) {
2936 netdev_parse_modern(optarg
);
2938 net_client_parse(qemu_find_opts("netdev"), optarg
);
2941 case QEMU_OPTION_nic
:
2943 net_client_parse(qemu_find_opts("nic"), optarg
);
2945 case QEMU_OPTION_net
:
2947 net_client_parse(qemu_find_opts("net"), optarg
);
2949 #ifdef CONFIG_LIBISCSI
2950 case QEMU_OPTION_iscsi
:
2951 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2958 case QEMU_OPTION_audiodev
:
2960 audio_parse_option(optarg
);
2962 case QEMU_OPTION_audio
: {
2965 Audiodev
*dev
= NULL
;
2967 QDict
*dict
= keyval_parse(optarg
, "driver", &help
, &error_fatal
);
2969 if (help
|| (qdict_haskey(dict
, "driver") &&
2970 is_help_option(qdict_get_str(dict
, "driver")))) {
2974 if (!qdict_haskey(dict
, "id")) {
2975 qdict_put_str(dict
, "id", "audiodev0");
2977 if (qdict_haskey(dict
, "model")) {
2978 model
= g_strdup(qdict_get_str(dict
, "model"));
2979 qdict_del(dict
, "model");
2980 if (is_help_option(model
)) {
2981 show_valid_soundhw();
2985 v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2986 qobject_unref(dict
);
2987 visit_type_Audiodev(v
, NULL
, &dev
, &error_fatal
);
2991 select_soundhw(model
, dev
->id
);
2994 audio_define_default(dev
, &error_fatal
);
3001 case QEMU_OPTION_version
:
3006 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg
, true);
3012 case QEMU_OPTION_tpmdev
:
3013 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3018 case QEMU_OPTION_mempath
:
3021 case QEMU_OPTION_mem_prealloc
:
3030 case QEMU_OPTION_DFILTER
:
3031 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3033 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3034 case QEMU_OPTION_perfmap
:
3035 perf_enable_perfmap();
3037 case QEMU_OPTION_jitdump
:
3038 perf_enable_jitdump();
3041 case QEMU_OPTION_seed
:
3042 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3045 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3047 case QEMU_OPTION_gdb
:
3048 add_device_config(DEV_GDB
, optarg
);
3051 if (is_help_option(optarg
)) {
3052 list_data_dirs
= true;
3054 qemu_add_data_dir(g_strdup(optarg
));
3057 case QEMU_OPTION_bios
:
3058 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
3060 case QEMU_OPTION_singlestep
:
3061 opt_one_insn_per_tb
= true;
3067 keyboard_layout
= optarg
;
3069 case QEMU_OPTION_vga
:
3078 w
= strtol(p
, (char **)&p
, 10);
3081 error_report("invalid resolution or depth");
3087 h
= strtol(p
, (char **)&p
, 10);
3092 depth
= strtol(p
, (char **)&p
, 10);
3093 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3094 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3095 depth
!= 24 && depth
!= 32)
3097 } else if (*p
== '\0') {
3098 depth
= graphic_depth
;
3105 graphic_depth
= depth
;
3108 case QEMU_OPTION_echr
:
3111 term_escape_char
= strtol(optarg
, &r
, 0);
3113 printf("Bad argument to echr\n");
3116 case QEMU_OPTION_monitor
:
3117 default_monitor
= 0;
3118 if (strncmp(optarg
, "none", 4)) {
3119 monitor_parse(optarg
, "readline", false);
3122 case QEMU_OPTION_qmp
:
3123 monitor_parse(optarg
, "control", false);
3124 default_monitor
= 0;
3126 case QEMU_OPTION_qmp_pretty
:
3127 monitor_parse(optarg
, "control", true);
3128 default_monitor
= 0;
3130 case QEMU_OPTION_mon
:
3131 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3136 default_monitor
= 0;
3138 case QEMU_OPTION_chardev
:
3139 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3145 case QEMU_OPTION_fsdev
:
3146 olist
= qemu_find_opts("fsdev");
3148 error_report("fsdev support is disabled");
3151 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3156 case QEMU_OPTION_virtfs
: {
3159 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3162 olist
= qemu_find_opts("virtfs");
3164 error_report("virtfs support is disabled");
3167 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3172 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3173 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3174 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3177 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3178 qemu_opts_id(opts
) ?:
3179 qemu_opt_get(opts
, "mount_tag"),
3182 error_report("duplicate or invalid fsdev id: %s",
3183 qemu_opt_get(opts
, "mount_tag"));
3187 writeout
= qemu_opt_get(opts
, "writeout");
3189 #ifdef CONFIG_SYNC_FILE_RANGE
3190 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3192 error_report("writeout=immediate not supported "
3193 "on this platform");
3197 qemu_opt_set(fsdev
, "fsdriver",
3198 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3199 path
= qemu_opt_get(opts
, "path");
3201 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3203 security_model
= qemu_opt_get(opts
, "security_model");
3204 if (security_model
) {
3205 qemu_opt_set(fsdev
, "security_model", security_model
,
3208 socket
= qemu_opt_get(opts
, "socket");
3210 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3212 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3214 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3217 qemu_opt_set_bool(fsdev
, "readonly",
3218 qemu_opt_get_bool(opts
, "readonly", 0),
3220 multidevs
= qemu_opt_get(opts
, "multidevs");
3222 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3224 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3226 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3227 qemu_opt_set(device
, "fsdev",
3228 qemu_opts_id(fsdev
), &error_abort
);
3229 qemu_opt_set(device
, "mount_tag",
3230 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3233 case QEMU_OPTION_serial
:
3234 add_device_config(DEV_SERIAL
, optarg
);
3236 if (strncmp(optarg
, "mon:", 4) == 0) {
3237 default_monitor
= 0;
3240 case QEMU_OPTION_action
:
3241 olist
= qemu_find_opts("action");
3242 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3246 case QEMU_OPTION_watchdog_action
: {
3247 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3248 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3251 case QEMU_OPTION_parallel
:
3252 add_device_config(DEV_PARALLEL
, optarg
);
3253 default_parallel
= 0;
3254 if (strncmp(optarg
, "mon:", 4) == 0) {
3255 default_monitor
= 0;
3258 case QEMU_OPTION_debugcon
:
3259 add_device_config(DEV_DEBUGCON
, optarg
);
3261 case QEMU_OPTION_loadvm
:
3264 case QEMU_OPTION_full_screen
:
3265 dpy
.has_full_screen
= true;
3266 dpy
.full_screen
= true;
3268 case QEMU_OPTION_pidfile
:
3271 case QEMU_OPTION_win2k_hack
:
3272 win2k_install_hack
= 1;
3274 case QEMU_OPTION_acpitable
:
3275 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3280 acpi_table_add(opts
, &error_fatal
);
3282 case QEMU_OPTION_smbios
:
3283 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3288 smbios_entry_add(opts
, &error_fatal
);
3290 case QEMU_OPTION_fwcfg
:
3291 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3297 case QEMU_OPTION_preconfig
:
3298 preconfig_requested
= true;
3300 case QEMU_OPTION_enable_kvm
:
3301 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3304 case QEMU_OPTION_machine
:
3308 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3310 machine_help_func(machine_opts_dict
);
3315 case QEMU_OPTION_accel
:
3316 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3318 optarg
= qemu_opt_get(accel_opts
, "accel");
3319 if (!optarg
|| is_help_option(optarg
)) {
3320 printf("Accelerators supported in QEMU binary:\n");
3321 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3323 for (el
= accel_list
; el
; el
= el
->next
) {
3324 gchar
*typename
= g_strdup(object_class_get_name(
3325 OBJECT_CLASS(el
->data
)));
3326 /* omit qtest which is used for tests only */
3327 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3328 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3329 gchar
**optname
= g_strsplit(typename
,
3330 ACCEL_CLASS_SUFFIX
, 0);
3331 printf("%s\n", optname
[0]);
3332 g_strfreev(optname
);
3336 g_slist_free(accel_list
);
3340 case QEMU_OPTION_usb
:
3341 qdict_put_str(machine_opts_dict
, "usb", "on");
3343 case QEMU_OPTION_usbdevice
:
3344 qdict_put_str(machine_opts_dict
, "usb", "on");
3345 add_device_config(DEV_USB
, optarg
);
3347 case QEMU_OPTION_device
:
3348 if (optarg
[0] == '{') {
3349 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3350 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3351 opt
->opts
= qobject_to(QDict
, obj
);
3352 loc_save(&opt
->loc
);
3353 assert(opt
->opts
!= NULL
);
3354 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3356 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3362 case QEMU_OPTION_smp
:
3363 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3367 case QEMU_OPTION_vnc
:
3372 case QEMU_OPTION_no_reboot
:
3373 olist
= qemu_find_opts("action");
3374 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3376 case QEMU_OPTION_no_shutdown
:
3377 olist
= qemu_find_opts("action");
3378 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3380 case QEMU_OPTION_uuid
:
3381 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3382 error_report("failed to parse UUID string: wrong format");
3385 qemu_uuid_set
= true;
3387 case QEMU_OPTION_option_rom
:
3388 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3389 error_report("too many option ROMs");
3392 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3397 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3398 option_rom
[nb_option_roms
].bootindex
=
3399 qemu_opt_get_number(opts
, "bootindex", -1);
3400 if (!option_rom
[nb_option_roms
].name
) {
3401 error_report("Option ROM file is not specified");
3406 case QEMU_OPTION_semihosting
:
3407 qemu_semihosting_enable();
3409 case QEMU_OPTION_semihosting_config
:
3410 if (qemu_semihosting_config_options(optarg
) != 0) {
3414 case QEMU_OPTION_name
:
3415 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3420 /* Capture guest name if -msg guest-name is used later */
3421 error_guest_name
= qemu_opt_get(opts
, "guest");
3423 case QEMU_OPTION_prom_env
:
3424 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3425 error_report("too many prom variables");
3428 prom_envs
[nb_prom_envs
] = optarg
;
3431 case QEMU_OPTION_old_param
:
3434 case QEMU_OPTION_rtc
:
3435 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3441 case QEMU_OPTION_icount
:
3442 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3448 case QEMU_OPTION_incoming
:
3450 runstate_set(RUN_STATE_INMIGRATE
);
3454 case QEMU_OPTION_only_migratable
:
3455 only_migratable
= 1;
3457 case QEMU_OPTION_nodefaults
:
3460 case QEMU_OPTION_xen_domid
:
3461 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3462 error_report("Option not supported for this target");
3465 xen_domid
= atoi(optarg
);
3467 case QEMU_OPTION_xen_attach
:
3468 if (!(accel_find("xen"))) {
3469 error_report("Option not supported for this target");
3472 xen_mode
= XEN_ATTACH
;
3474 case QEMU_OPTION_xen_domid_restrict
:
3475 if (!(accel_find("xen"))) {
3476 error_report("Option not supported for this target");
3479 xen_domid_restrict
= true;
3481 case QEMU_OPTION_trace
:
3482 trace_opt_parse(optarg
);
3484 case QEMU_OPTION_plugin
:
3485 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3487 case QEMU_OPTION_readconfig
:
3488 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3491 case QEMU_OPTION_spice
:
3492 opts
= qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg
, false);
3499 case QEMU_OPTION_qtest
:
3500 qtest_chrdev
= optarg
;
3502 case QEMU_OPTION_qtest_log
:
3505 case QEMU_OPTION_sandbox
:
3506 olist
= qemu_find_opts("sandbox");
3508 #ifndef CONFIG_SECCOMP
3509 error_report("-sandbox support is not enabled "
3510 "in this QEMU binary");
3515 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3520 case QEMU_OPTION_add_fd
:
3522 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3528 error_report("File descriptor passing is disabled on this "
3533 case QEMU_OPTION_object
:
3534 object_option_parse(optarg
);
3536 case QEMU_OPTION_overcommit
:
3537 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3542 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3543 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3545 case QEMU_OPTION_compat
:
3547 CompatPolicy
*opts_policy
;
3550 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3553 visit_type_CompatPolicy(v
, NULL
, &opts_policy
, &error_fatal
);
3554 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts_policy
);
3556 qapi_free_CompatPolicy(opts_policy
);
3560 case QEMU_OPTION_msg
:
3561 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3566 configure_msg(opts
);
3568 case QEMU_OPTION_dump_vmstate
:
3569 if (vmstate_dump_file
) {
3570 error_report("only one '-dump-vmstate' "
3571 "option may be given");
3574 vmstate_dump_file
= fopen(optarg
, "w");
3575 if (vmstate_dump_file
== NULL
) {
3576 error_report("open %s: %s", optarg
, strerror(errno
));
3580 case QEMU_OPTION_enable_sync_profile
:
3583 case QEMU_OPTION_nouserconfig
:
3584 /* Nothing to be parsed here. Especially, do not error out below. */
3586 #if defined(CONFIG_POSIX)
3587 case QEMU_OPTION_runas
:
3588 if (!os_set_runas(optarg
)) {
3589 error_report("User \"%s\" doesn't exist"
3590 " (and is not <uid>:<gid>)",
3595 case QEMU_OPTION_chroot
:
3596 warn_report("option is deprecated,"
3597 " use '-run-with chroot=...' instead");
3598 os_set_chroot(optarg
);
3600 case QEMU_OPTION_daemonize
:
3601 os_set_daemonize(true);
3603 #if defined(CONFIG_LINUX)
3605 case QEMU_OPTION_asyncteardown
:
3606 init_async_teardown();
3609 case QEMU_OPTION_run_with
: {
3611 opts
= qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3616 #if defined(CONFIG_LINUX)
3617 if (qemu_opt_get_bool(opts
, "async-teardown", false)) {
3618 init_async_teardown();
3621 str
= qemu_opt_get(opts
, "chroot");
3627 #endif /* CONFIG_POSIX */
3630 error_report("Option not supported in this build");
3636 * Clear error location left behind by the loop.
3637 * Best done right after the loop. Do not insert code here!
3641 qemu_validate_options(machine_opts_dict
);
3642 qemu_process_sugar_options();
3645 * These options affect everything else and should be processed
3646 * before daemonizing.
3648 qemu_process_early_options();
3650 qemu_process_help_options();
3651 qemu_maybe_daemonize(pid_file
);
3654 * The trace backend must be initialized after daemonizing.
3655 * trace_init_backends() will call st_init(), which will create the
3656 * trace thread in the parent, and also register st_flush_trace_buffer()
3657 * in atexit(). This function will force the parent to wait for the
3658 * writeout thread to finish, which will not occur, and the parent
3659 * process will be left in the host.
3661 if (!trace_init_backends()) {
3666 qemu_init_main_loop(&error_fatal
);
3669 user_register_global_props();
3670 replay_configure(icount_opts
);
3672 configure_rtc(qemu_find_opts_singleton("rtc"));
3674 /* Transfer QemuOpts options into machine options */
3675 parse_memory_options();
3677 qemu_create_machine(machine_opts_dict
);
3681 qemu_disable_default_devices();
3682 qemu_setup_display();
3683 qemu_create_default_devices();
3684 qemu_create_early_backends();
3686 qemu_apply_legacy_machine_options(machine_opts_dict
);
3687 qemu_apply_machine_options(machine_opts_dict
);
3688 qobject_unref(machine_opts_dict
);
3689 phase_advance(PHASE_MACHINE_CREATED
);
3692 * Note: uses machine properties such as kernel-irqchip, must run
3693 * after qemu_apply_machine_options.
3695 configure_accelerators(argv
[0]);
3696 phase_advance(PHASE_ACCEL_CREATED
);
3699 * Beware, QOM objects created before this point miss global and
3700 * compat properties.
3702 * Global properties get set up by qdev_prop_register_global(),
3703 * called from user_register_global_props(), and certain option
3704 * desugaring. Also in CPU feature desugaring (buried in
3705 * parse_cpu_option()), which happens below this point, but may
3706 * only target the CPU type, which can only be created after
3707 * parse_cpu_option() returned the type.
3709 * Machine compat properties: object_set_machine_compat_props().
3710 * Accelerator compat props: object_set_accelerator_compat_props(),
3711 * called from do_configure_accelerator().
3714 machine_class
= MACHINE_GET_CLASS(current_machine
);
3715 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3716 warn_report("Machine type '%s' is deprecated: %s",
3717 machine_class
->name
, machine_class
->deprecation_reason
);
3721 * Create backends before creating migration objects, so that it can
3722 * check against compatibilities on the backend memories (e.g. postcopy
3723 * over memory-backend-file objects).
3725 qemu_create_late_backends();
3728 * Note: creates a QOM object, must run only after global and
3729 * compat properties have been set up.
3731 migration_object_init();
3733 /* parse features once if machine provides default cpu_type */
3734 current_machine
->cpu_type
= machine_class_default_cpu_type(machine_class
);
3736 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3738 /* NB: for machine none cpu_type could STILL be NULL here! */
3740 qemu_resolve_machine_memdev();
3741 parse_numa_opts(current_machine
);
3743 if (vmstate_dump_file
) {
3745 module_load_qom_all();
3746 dump_vmstate_json_to_file(vmstate_dump_file
);
3750 if (!preconfig_requested
) {
3751 qmp_x_exit_preconfig(&error_fatal
);
3753 qemu_init_displays();
3754 accel_setup_post(current_machine
);