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 "sysemu/watchdog.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 "sysemu/hax.h"
91 #include "qapi/qobject-input-visitor.h"
92 #include "qemu/option.h"
93 #include "qemu/config-file.h"
94 #include "qemu/qemu-options.h"
95 #include "qemu/main-loop.h"
97 #include "fsdev/qemu-fsdev.h"
99 #include "sysemu/qtest.h"
101 #include "disas/disas.h"
104 #include "trace/control.h"
105 #include "qemu/plugin.h"
106 #include "qemu/queue.h"
107 #include "sysemu/arch_init.h"
108 #include "exec/confidential-guest-support.h"
110 #include "ui/qemu-spice.h"
111 #include "qapi/string-input-visitor.h"
112 #include "qapi/opts-visitor.h"
113 #include "qapi/clone-visitor.h"
114 #include "qom/object_interfaces.h"
115 #include "semihosting/semihost.h"
116 #include "crypto/init.h"
117 #include "sysemu/replay.h"
118 #include "qapi/qapi-events-run-state.h"
119 #include "qapi/qapi-visit-block-core.h"
120 #include "qapi/qapi-visit-compat.h"
121 #include "qapi/qapi-visit-ui.h"
122 #include "qapi/qapi-commands-block-core.h"
123 #include "qapi/qapi-commands-migration.h"
124 #include "qapi/qapi-commands-misc.h"
125 #include "qapi/qapi-visit-qom.h"
126 #include "qapi/qapi-commands-ui.h"
127 #include "qapi/qmp/qdict.h"
128 #include "block/qdict.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132 #include "qemu/keyval.h"
134 #include "config-host.h"
136 #define MAX_VIRTIO_CONSOLES 1
138 typedef struct BlockdevOptionsQueueEntry
{
139 BlockdevOptions
*bdo
;
141 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry
) entry
;
142 } BlockdevOptionsQueueEntry
;
144 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry
) BlockdevOptionsQueue
;
146 typedef struct ObjectOption
{
148 QTAILQ_ENTRY(ObjectOption
) next
;
151 typedef struct DeviceOption
{
154 QTAILQ_ENTRY(DeviceOption
) next
;
157 static const char *cpu_option
;
158 static const char *mem_path
;
159 static const char *incoming
;
160 static const char *loadvm
;
161 static const char *accelerators
;
162 static QDict
*machine_opts_dict
;
163 static QTAILQ_HEAD(, ObjectOption
) object_opts
= QTAILQ_HEAD_INITIALIZER(object_opts
);
164 static QTAILQ_HEAD(, DeviceOption
) device_opts
= QTAILQ_HEAD_INITIALIZER(device_opts
);
165 static ram_addr_t maxram_size
;
166 static uint64_t ram_slots
;
167 static int display_remote
;
169 static bool preconfig_requested
;
170 static QemuPluginList plugin_list
= QTAILQ_HEAD_INITIALIZER(plugin_list
);
171 static BlockdevOptionsQueue bdo_queue
= QSIMPLEQ_HEAD_INITIALIZER(bdo_queue
);
172 static bool nographic
= false;
173 static int mem_prealloc
; /* force preallocation of physical target memory */
174 static ram_addr_t ram_size
;
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 *watchdog
;
183 static const char *qtest_chrdev
;
184 static const char *qtest_log
;
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
, 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"
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 return machine_class
->default_display
;
960 } else if (vga_interface_available(VGA_CIRRUS
)) {
962 } else if (vga_interface_available(VGA_STD
)) {
969 static void select_vgahw(const MachineClass
*machine_class
, const char *p
)
974 if (g_str_equal(p
, "help")) {
975 const char *def
= get_default_vga_model(machine_class
);
977 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
978 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
980 if (vga_interface_available(t
) && ti
->opt_name
) {
981 printf("%-20s %s%s\n", ti
->opt_name
, ti
->name
?: "",
982 g_str_equal(ti
->opt_name
, def
) ? " (default)" : "");
988 assert(vga_interface_type
== VGA_NONE
);
989 for (t
= 0; t
< VGA_TYPE_MAX
; t
++) {
990 const VGAInterfaceInfo
*ti
= &vga_interfaces
[t
];
991 if (ti
->opt_name
&& strstart(p
, ti
->opt_name
, &opts
)) {
992 if (!vga_interface_available(t
)) {
993 error_report("%s not available", ti
->name
);
996 vga_interface_type
= t
;
1000 if (t
== VGA_TYPE_MAX
) {
1002 error_report("unknown vga type: %s", p
);
1006 const char *nextopt
;
1008 if (strstart(opts
, ",retrace=", &nextopt
)) {
1010 if (strstart(opts
, "dumb", &nextopt
))
1011 vga_retrace_method
= VGA_RETRACE_DUMB
;
1012 else if (strstart(opts
, "precise", &nextopt
))
1013 vga_retrace_method
= VGA_RETRACE_PRECISE
;
1014 else goto invalid_vga
;
1015 } else goto invalid_vga
;
1020 static void parse_display_qapi(const char *optarg
)
1022 DisplayOptions
*opts
;
1025 v
= qobject_input_visitor_new_str(optarg
, "type", &error_fatal
);
1027 visit_type_DisplayOptions(v
, NULL
, &opts
, &error_fatal
);
1028 QAPI_CLONE_MEMBERS(DisplayOptions
, &dpy
, opts
);
1030 qapi_free_DisplayOptions(opts
);
1034 DisplayOptions
*qmp_query_display_options(Error
**errp
)
1036 return QAPI_CLONE(DisplayOptions
, &dpy
);
1039 static void parse_display(const char *p
)
1043 if (is_help_option(p
)) {
1044 qemu_display_help();
1048 if (strstart(p
, "sdl", &opts
)) {
1050 * sdl DisplayType needs hand-crafted parser instead of
1051 * parse_display_qapi() due to some options not in
1052 * DisplayOptions, specifically:
1053 * - ctrl_grab + alt_grab
1054 * They can't be moved into the QAPI since they use underscores,
1055 * thus they will get replaced by "grab-mod" in the long term
1057 #if defined(CONFIG_SDL)
1058 dpy
.type
= DISPLAY_TYPE_SDL
;
1060 const char *nextopt
;
1062 if (strstart(opts
, ",grab-mod=", &nextopt
)) {
1064 if (strstart(opts
, "lshift-lctrl-lalt", &nextopt
)) {
1066 } else if (strstart(opts
, "rctrl", &nextopt
)) {
1069 goto invalid_sdl_args
;
1071 } else if (strstart(opts
, ",alt_grab=", &nextopt
)) {
1073 if (strstart(opts
, "on", &nextopt
)) {
1075 } else if (strstart(opts
, "off", &nextopt
)) {
1078 goto invalid_sdl_args
;
1080 warn_report("alt_grab is deprecated, use grab-mod instead.");
1081 } else if (strstart(opts
, ",ctrl_grab=", &nextopt
)) {
1083 if (strstart(opts
, "on", &nextopt
)) {
1085 } else if (strstart(opts
, "off", &nextopt
)) {
1088 goto invalid_sdl_args
;
1090 warn_report("ctrl_grab is deprecated, use grab-mod instead.");
1091 } else if (strstart(opts
, ",window_close=", &nextopt
) ||
1092 strstart(opts
, ",window-close=", &nextopt
)) {
1093 if (strstart(opts
, ",window_close=", NULL
)) {
1094 warn_report("window_close with an underscore is deprecated,"
1095 " please use window-close instead.");
1098 dpy
.has_window_close
= true;
1099 if (strstart(opts
, "on", &nextopt
)) {
1100 dpy
.window_close
= true;
1101 } else if (strstart(opts
, "off", &nextopt
)) {
1102 dpy
.window_close
= false;
1104 goto invalid_sdl_args
;
1106 } else if (strstart(opts
, ",show-cursor=", &nextopt
)) {
1108 dpy
.has_show_cursor
= true;
1109 if (strstart(opts
, "on", &nextopt
)) {
1110 dpy
.show_cursor
= true;
1111 } else if (strstart(opts
, "off", &nextopt
)) {
1112 dpy
.show_cursor
= false;
1114 goto invalid_sdl_args
;
1116 } else if (strstart(opts
, ",gl=", &nextopt
)) {
1119 if (strstart(opts
, "on", &nextopt
)) {
1120 dpy
.gl
= DISPLAYGL_MODE_ON
;
1121 } else if (strstart(opts
, "core", &nextopt
)) {
1122 dpy
.gl
= DISPLAYGL_MODE_CORE
;
1123 } else if (strstart(opts
, "es", &nextopt
)) {
1124 dpy
.gl
= DISPLAYGL_MODE_ES
;
1125 } else if (strstart(opts
, "off", &nextopt
)) {
1126 dpy
.gl
= DISPLAYGL_MODE_OFF
;
1128 goto invalid_sdl_args
;
1132 error_report("invalid SDL option string");
1138 error_report("SDL display supported is not available in this binary");
1141 } else if (strstart(p
, "vnc", &opts
)) {
1143 * vnc isn't a (local) DisplayType but a protocol for remote
1147 vnc_parse(opts
+ 1);
1149 error_report("VNC requires a display argument vnc=<display>");
1153 parse_display_qapi(p
);
1157 static inline bool nonempty_str(const char *str
)
1162 static int parse_fw_cfg(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1166 const char *name
, *file
, *str
, *gen_id
;
1167 FWCfgState
*fw_cfg
= (FWCfgState
*) opaque
;
1169 if (fw_cfg
== NULL
) {
1170 error_setg(errp
, "fw_cfg device not available");
1173 name
= qemu_opt_get(opts
, "name");
1174 file
= qemu_opt_get(opts
, "file");
1175 str
= qemu_opt_get(opts
, "string");
1176 gen_id
= qemu_opt_get(opts
, "gen_id");
1178 /* we need the name, and exactly one of: file, content string, gen_id */
1179 if (!nonempty_str(name
) ||
1180 nonempty_str(file
) + nonempty_str(str
) + nonempty_str(gen_id
) != 1) {
1181 error_setg(errp
, "name, plus exactly one of file,"
1182 " string and gen_id, are needed");
1185 if (strlen(name
) > FW_CFG_MAX_FILE_PATH
- 1) {
1186 error_setg(errp
, "name too long (max. %d char)",
1187 FW_CFG_MAX_FILE_PATH
- 1);
1190 if (nonempty_str(gen_id
)) {
1192 * In this particular case where the content is populated
1193 * internally, the "etc/" namespace protection is relaxed,
1194 * so do not emit a warning.
1196 } else if (strncmp(name
, "opt/", 4) != 0) {
1197 warn_report("externally provided fw_cfg item names "
1198 "should be prefixed with \"opt/\"");
1200 if (nonempty_str(str
)) {
1201 size
= strlen(str
); /* NUL terminator NOT included in fw_cfg blob */
1202 buf
= g_memdup(str
, size
);
1203 } else if (nonempty_str(gen_id
)) {
1204 if (!fw_cfg_add_from_generator(fw_cfg
, name
, gen_id
, errp
)) {
1210 if (!g_file_get_contents(file
, &buf
, &size
, &err
)) {
1211 error_setg(errp
, "can't load %s: %s", file
, err
->message
);
1216 /* For legacy, keep user files in a specific global order. */
1217 fw_cfg_set_order_override(fw_cfg
, FW_CFG_ORDER_OVERRIDE_USER
);
1218 fw_cfg_add_file(fw_cfg
, name
, buf
, size
);
1219 fw_cfg_reset_order_override(fw_cfg
);
1223 static int device_help_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1225 return qdev_device_help(opts
);
1228 static int device_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1232 dev
= qdev_device_add(opts
, errp
);
1233 if (!dev
&& *errp
) {
1234 error_report_err(*errp
);
1237 object_unref(OBJECT(dev
));
1242 static int chardev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1244 Error
*local_err
= NULL
;
1246 if (!qemu_chr_new_from_opts(opts
, NULL
, &local_err
)) {
1248 error_propagate(errp
, local_err
);
1256 #ifdef CONFIG_VIRTFS
1257 static int fsdev_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1259 return qemu_fsdev_add(opts
, errp
);
1263 static int mon_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
1265 return monitor_init_opts(opts
, errp
);
1268 static void monitor_parse(const char *optarg
, const char *mode
, bool pretty
)
1270 static int monitor_device_index
= 0;
1275 if (strstart(optarg
, "chardev:", &p
)) {
1276 snprintf(label
, sizeof(label
), "%s", p
);
1278 snprintf(label
, sizeof(label
), "compat_monitor%d",
1279 monitor_device_index
);
1280 opts
= qemu_chr_parse_compat(label
, optarg
, true);
1282 error_report("parse error: %s", optarg
);
1287 opts
= qemu_opts_create(qemu_find_opts("mon"), label
, 1, &error_fatal
);
1288 qemu_opt_set(opts
, "mode", mode
, &error_abort
);
1289 qemu_opt_set(opts
, "chardev", label
, &error_abort
);
1290 if (!strcmp(mode
, "control")) {
1291 qemu_opt_set_bool(opts
, "pretty", pretty
, &error_abort
);
1293 assert(pretty
== false);
1295 monitor_device_index
++;
1298 struct device_config
{
1300 DEV_USB
, /* -usbdevice */
1301 DEV_SERIAL
, /* -serial */
1302 DEV_PARALLEL
, /* -parallel */
1303 DEV_DEBUGCON
, /* -debugcon */
1304 DEV_GDB
, /* -gdb, -s */
1305 DEV_SCLP
, /* s390 sclp */
1307 const char *cmdline
;
1309 QTAILQ_ENTRY(device_config
) next
;
1312 static QTAILQ_HEAD(, device_config
) device_configs
=
1313 QTAILQ_HEAD_INITIALIZER(device_configs
);
1315 static void add_device_config(int type
, const char *cmdline
)
1317 struct device_config
*conf
;
1319 conf
= g_malloc0(sizeof(*conf
));
1321 conf
->cmdline
= cmdline
;
1322 loc_save(&conf
->loc
);
1323 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
1326 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
1328 struct device_config
*conf
;
1331 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
1332 if (conf
->type
!= type
)
1334 loc_push_restore(&conf
->loc
);
1335 rc
= func(conf
->cmdline
);
1336 loc_pop(&conf
->loc
);
1344 static void qemu_disable_default_devices(void)
1346 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1348 default_driver_check_json();
1349 qemu_opts_foreach(qemu_find_opts("device"),
1350 default_driver_check
, NULL
, NULL
);
1351 qemu_opts_foreach(qemu_find_opts("global"),
1352 default_driver_check
, NULL
, NULL
);
1354 if (!vga_model
&& !default_vga
) {
1355 vga_interface_type
= VGA_DEVICE
;
1356 vga_interface_created
= true;
1358 if (!has_defaults
|| machine_class
->no_serial
) {
1361 if (!has_defaults
|| machine_class
->no_parallel
) {
1362 default_parallel
= 0;
1364 if (!has_defaults
|| machine_class
->no_floppy
) {
1367 if (!has_defaults
|| machine_class
->no_cdrom
) {
1370 if (!has_defaults
|| machine_class
->no_sdcard
) {
1373 if (!has_defaults
) {
1374 default_monitor
= 0;
1380 static void qemu_create_default_devices(void)
1382 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1384 if (is_daemonized()) {
1385 /* According to documentation and historically, -nographic redirects
1386 * serial port, parallel port and monitor to stdio, which does not work
1387 * with -daemonize. We can redirect these to null instead, but since
1388 * -nographic is legacy, let's just error out.
1389 * We disallow -nographic only if all other ports are not redirected
1390 * explicitly, to not break existing legacy setups which uses
1391 * -nographic _and_ redirects all ports explicitly - this is valid
1392 * usage, -nographic is just a no-op in this case.
1395 && (default_parallel
|| default_serial
|| default_monitor
)) {
1396 error_report("-nographic cannot be used with -daemonize");
1402 if (default_parallel
)
1403 add_device_config(DEV_PARALLEL
, "null");
1404 if (default_serial
&& default_monitor
) {
1405 add_device_config(DEV_SERIAL
, "mon:stdio");
1408 add_device_config(DEV_SERIAL
, "stdio");
1409 if (default_monitor
)
1410 monitor_parse("stdio", "readline", false);
1414 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
1415 if (default_parallel
)
1416 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
1417 if (default_monitor
)
1418 monitor_parse("vc:80Cx24C", "readline", false);
1422 QemuOptsList
*net
= qemu_find_opts("net");
1423 qemu_opts_parse(net
, "nic", true, &error_abort
);
1425 qemu_opts_parse(net
, "user", true, &error_abort
);
1429 #if defined(CONFIG_VNC)
1430 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head
))) {
1434 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
&& !display_remote
) {
1435 if (!qemu_display_find_default(&dpy
)) {
1436 dpy
.type
= DISPLAY_TYPE_NONE
;
1437 #if defined(CONFIG_VNC)
1438 vnc_parse("localhost:0,to=99,id=default");
1442 if (dpy
.type
== DISPLAY_TYPE_DEFAULT
) {
1443 dpy
.type
= DISPLAY_TYPE_NONE
;
1446 /* If no default VGA is requested, the default is "none". */
1448 vga_model
= get_default_vga_model(machine_class
);
1451 select_vgahw(machine_class
, vga_model
);
1455 static int serial_parse(const char *devname
)
1457 int index
= num_serial_hds
;
1460 if (strcmp(devname
, "none") == 0)
1462 snprintf(label
, sizeof(label
), "serial%d", index
);
1463 serial_hds
= g_renew(Chardev
*, serial_hds
, index
+ 1);
1465 serial_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1466 if (!serial_hds
[index
]) {
1467 error_report("could not connect serial device"
1468 " to character backend '%s'", devname
);
1475 Chardev
*serial_hd(int i
)
1478 if (i
< num_serial_hds
) {
1479 return serial_hds
[i
];
1484 static int parallel_parse(const char *devname
)
1486 static int index
= 0;
1489 if (strcmp(devname
, "none") == 0)
1491 if (index
== MAX_PARALLEL_PORTS
) {
1492 error_report("too many parallel ports");
1495 snprintf(label
, sizeof(label
), "parallel%d", index
);
1496 parallel_hds
[index
] = qemu_chr_new_mux_mon(label
, devname
, NULL
);
1497 if (!parallel_hds
[index
]) {
1498 error_report("could not connect parallel device"
1499 " to character backend '%s'", devname
);
1506 static int debugcon_parse(const char *devname
)
1510 if (!qemu_chr_new_mux_mon("debugcon", devname
, NULL
)) {
1511 error_report("invalid character backend '%s'", devname
);
1514 opts
= qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL
);
1516 error_report("already have a debugcon device");
1519 qemu_opt_set(opts
, "driver", "isa-debugcon", &error_abort
);
1520 qemu_opt_set(opts
, "chardev", "debugcon", &error_abort
);
1524 static gint
machine_class_cmp(gconstpointer a
, gconstpointer b
)
1526 const MachineClass
*mc1
= a
, *mc2
= b
;
1529 if (mc1
->family
== NULL
) {
1530 if (mc2
->family
== NULL
) {
1531 /* Compare standalone machine types against each other; they sort
1532 * in increasing order.
1534 return strcmp(object_class_get_name(OBJECT_CLASS(mc1
)),
1535 object_class_get_name(OBJECT_CLASS(mc2
)));
1538 /* Standalone machine types sort after families. */
1542 if (mc2
->family
== NULL
) {
1543 /* Families sort before standalone machine types. */
1547 /* Families sort between each other alphabetically increasingly. */
1548 res
= strcmp(mc1
->family
, mc2
->family
);
1553 /* Within the same family, machine types sort in decreasing order. */
1554 return strcmp(object_class_get_name(OBJECT_CLASS(mc2
)),
1555 object_class_get_name(OBJECT_CLASS(mc1
)));
1558 static void machine_help_func(const QDict
*qdict
)
1560 GSList
*machines
, *el
;
1561 const char *type
= qdict_get_try_str(qdict
, "type");
1563 machines
= object_class_get_list(TYPE_MACHINE
, false);
1565 ObjectClass
*machine_class
= OBJECT_CLASS(find_machine(type
, machines
));
1566 if (machine_class
) {
1567 type_print_class_properties(object_class_get_name(machine_class
));
1572 printf("Supported machines are:\n");
1573 machines
= g_slist_sort(machines
, machine_class_cmp
);
1574 for (el
= machines
; el
; el
= el
->next
) {
1575 MachineClass
*mc
= el
->data
;
1577 printf("%-20s %s (alias of %s)\n", mc
->alias
, mc
->desc
, mc
->name
);
1579 printf("%-20s %s%s%s\n", mc
->name
, mc
->desc
,
1580 mc
->is_default
? " (default)" : "",
1581 mc
->deprecation_reason
? " (deprecated)" : "");
1586 machine_merge_property(const char *propname
, QDict
*prop
, Error
**errp
)
1591 /* Preserve the caller's reference to prop. */
1593 qdict_put(opts
, propname
, prop
);
1594 keyval_merge(machine_opts_dict
, opts
, errp
);
1595 qobject_unref(opts
);
1599 machine_parse_property_opt(QemuOptsList
*opts_list
, const char *propname
,
1605 prop
= keyval_parse(arg
, opts_list
->implied_opt_name
, &help
, &error_fatal
);
1607 qemu_opts_print_help(opts_list
, true);
1610 machine_merge_property(propname
, prop
, &error_fatal
);
1611 qobject_unref(prop
);
1614 static const char *pid_file
;
1615 static Notifier qemu_unlink_pidfile_notifier
;
1617 static void qemu_unlink_pidfile(Notifier
*n
, void *data
)
1624 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
1625 const char **poptarg
, int *poptind
)
1627 const QEMUOption
*popt
;
1628 int optind
= *poptind
;
1629 char *r
= argv
[optind
];
1632 loc_set_cmdline(argv
, optind
, 1);
1634 /* Treat --foo the same as -foo. */
1637 popt
= qemu_options
;
1640 error_report("invalid option");
1643 if (!strcmp(popt
->name
, r
+ 1))
1647 if (popt
->flags
& HAS_ARG
) {
1648 if (optind
>= argc
) {
1649 error_report("requires an argument");
1652 optarg
= argv
[optind
++];
1653 loc_set_cmdline(argv
, optind
- 2, 2);
1664 static MachineClass
*select_machine(QDict
*qdict
, Error
**errp
)
1666 const char *optarg
= qdict_get_try_str(qdict
, "type");
1667 GSList
*machines
= object_class_get_list(TYPE_MACHINE
, false);
1668 MachineClass
*machine_class
;
1669 Error
*local_err
= NULL
;
1672 machine_class
= find_machine(optarg
, machines
);
1673 qdict_del(qdict
, "type");
1674 if (!machine_class
) {
1675 error_setg(&local_err
, "unsupported machine type");
1678 machine_class
= find_default_machine(machines
);
1679 if (!machine_class
) {
1680 error_setg(&local_err
, "No machine specified, and there is no default");
1684 g_slist_free(machines
);
1686 error_append_hint(&local_err
, "Use -machine help to list supported machines\n");
1687 error_propagate(errp
, local_err
);
1689 return machine_class
;
1692 static int object_parse_property_opt(Object
*obj
,
1693 const char *name
, const char *value
,
1694 const char *skip
, Error
**errp
)
1696 if (g_str_equal(name
, skip
)) {
1700 if (!object_property_parse(obj
, name
, value
, errp
)) {
1707 /* *Non*recursively replace underscores with dashes in QDict keys. */
1708 static void keyval_dashify(QDict
*qdict
, Error
**errp
)
1710 const QDictEntry
*ent
, *next
;
1713 for (ent
= qdict_first(qdict
); ent
; ent
= next
) {
1714 g_autofree
char *new_key
= NULL
;
1716 next
= qdict_next(qdict
, ent
);
1717 if (!strchr(ent
->key
, '_')) {
1720 new_key
= g_strdup(ent
->key
);
1721 for (p
= new_key
; *p
; p
++) {
1726 if (qdict_haskey(qdict
, new_key
)) {
1727 error_setg(errp
, "Conflict between '%s' and '%s'", ent
->key
, new_key
);
1730 qobject_ref(ent
->value
);
1731 qdict_put_obj(qdict
, new_key
, ent
->value
);
1732 qdict_del(qdict
, ent
->key
);
1736 static void qemu_apply_legacy_machine_options(QDict
*qdict
)
1740 keyval_dashify(qdict
, &error_fatal
);
1742 /* Legacy options do not correspond to MachineState properties. */
1743 value
= qdict_get_try_str(qdict
, "accel");
1745 accelerators
= g_strdup(value
);
1746 qdict_del(qdict
, "accel");
1749 value
= qdict_get_try_str(qdict
, "igd-passthru");
1751 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value
,
1753 qdict_del(qdict
, "igd-passthru");
1756 value
= qdict_get_try_str(qdict
, "kvm-shadow-mem");
1758 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value
,
1760 qdict_del(qdict
, "kvm-shadow-mem");
1763 value
= qdict_get_try_str(qdict
, "kernel-irqchip");
1765 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value
,
1767 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value
,
1769 qdict_del(qdict
, "kernel-irqchip");
1773 static void object_option_foreach_add(bool (*type_opt_predicate
)(const char *))
1775 ObjectOption
*opt
, *next
;
1777 QTAILQ_FOREACH_SAFE(opt
, &object_opts
, next
, next
) {
1778 const char *type
= ObjectType_str(opt
->opts
->qom_type
);
1779 if (type_opt_predicate(type
)) {
1780 user_creatable_add_qapi(opt
->opts
, &error_fatal
);
1781 qapi_free_ObjectOptions(opt
->opts
);
1782 QTAILQ_REMOVE(&object_opts
, opt
, next
);
1788 static void object_option_add_visitor(Visitor
*v
)
1790 ObjectOption
*opt
= g_new0(ObjectOption
, 1);
1791 visit_type_ObjectOptions(v
, NULL
, &opt
->opts
, &error_fatal
);
1792 QTAILQ_INSERT_TAIL(&object_opts
, opt
, next
);
1795 static void object_option_parse(const char *optarg
)
1801 if (optarg
[0] == '{') {
1802 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
1804 v
= qobject_input_visitor_new(obj
);
1807 opts
= qemu_opts_parse_noisily(qemu_find_opts("object"),
1813 type
= qemu_opt_get(opts
, "qom-type");
1815 error_setg(&error_fatal
, QERR_MISSING_PARAMETER
, "qom-type");
1817 if (user_creatable_print_help(type
, opts
)) {
1821 v
= opts_visitor_new(opts
);
1824 object_option_add_visitor(v
);
1829 * Initial object creation happens before all other
1830 * QEMU data types are created. The majority of objects
1831 * can be created at this point. The rng-egd object
1832 * cannot be created here, as it depends on the chardev
1835 static bool object_create_early(const char *type
)
1838 * Objects should not be made "delayed" without a reason. If you
1839 * add one, state the reason in a comment!
1842 /* Reason: property "chardev" */
1843 if (g_str_equal(type
, "rng-egd") ||
1844 g_str_equal(type
, "qtest")) {
1848 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1849 /* Reason: cryptodev-vhost-user property "chardev" */
1850 if (g_str_equal(type
, "cryptodev-vhost-user")) {
1855 /* Reason: vhost-user-blk-server property "node-name" */
1856 if (g_str_equal(type
, "vhost-user-blk-server")) {
1860 * Reason: filter-* property "netdev" etc.
1862 if (g_str_equal(type
, "filter-buffer") ||
1863 g_str_equal(type
, "filter-dump") ||
1864 g_str_equal(type
, "filter-mirror") ||
1865 g_str_equal(type
, "filter-redirector") ||
1866 g_str_equal(type
, "colo-compare") ||
1867 g_str_equal(type
, "filter-rewriter") ||
1868 g_str_equal(type
, "filter-replay")) {
1873 * Allocation of large amounts of memory may delay
1874 * chardev initialization for too long, and trigger timeouts
1875 * on software that waits for a monitor socket to be created
1878 if (g_str_has_prefix(type
, "memory-backend-")) {
1885 static void qemu_apply_machine_options(QDict
*qdict
)
1887 object_set_properties_from_keyval(OBJECT(current_machine
), qdict
, false, &error_fatal
);
1888 current_machine
->ram_size
= ram_size
;
1889 current_machine
->maxram_size
= maxram_size
;
1890 current_machine
->ram_slots
= ram_slots
;
1892 if (semihosting_enabled() && !semihosting_get_argc()) {
1893 /* fall back to the -kernel/-append */
1894 semihosting_arg_fallback(current_machine
->kernel_filename
, current_machine
->kernel_cmdline
);
1897 if (current_machine
->smp
.cpus
> 1) {
1898 Error
*blocker
= NULL
;
1899 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
1900 replay_add_blocker(blocker
);
1904 static void qemu_create_early_backends(void)
1906 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
1907 #if defined(CONFIG_SDL)
1908 const bool use_sdl
= (dpy
.type
== DISPLAY_TYPE_SDL
);
1910 const bool use_sdl
= false;
1912 #if defined(CONFIG_GTK)
1913 const bool use_gtk
= (dpy
.type
== DISPLAY_TYPE_GTK
);
1915 const bool use_gtk
= false;
1918 if ((alt_grab
|| ctrl_grab
) && !use_sdl
) {
1919 error_report("-alt-grab and -ctrl-grab are only valid "
1920 "for SDL, ignoring option");
1922 if (dpy
.has_window_close
&& !use_gtk
&& !use_sdl
) {
1923 error_report("window-close is only valid for GTK and SDL, "
1927 qemu_display_early_init(&dpy
);
1928 qemu_console_early_init();
1930 if (dpy
.has_gl
&& dpy
.gl
!= DISPLAYGL_MODE_OFF
&& display_opengl
== 0) {
1931 #if defined(CONFIG_OPENGL)
1932 error_report("OpenGL is not supported by the display");
1934 error_report("OpenGL support is disabled");
1939 object_option_foreach_add(object_create_early
);
1941 /* spice needs the timers to be initialized by this point */
1942 /* spice must initialize before audio as it changes the default audiodev */
1943 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1946 qemu_opts_foreach(qemu_find_opts("chardev"),
1947 chardev_init_func
, NULL
, &error_fatal
);
1949 #ifdef CONFIG_VIRTFS
1950 qemu_opts_foreach(qemu_find_opts("fsdev"),
1951 fsdev_init_func
, NULL
, &error_fatal
);
1955 * Note: we need to create audio and block backends before
1956 * setting machine properties, so they can be referred to.
1958 configure_blockdev(&bdo_queue
, machine_class
, snapshot
);
1959 audio_init_audiodevs();
1964 * The remainder of object creation happens after the
1965 * creation of chardev, fsdev, net clients and device data types.
1967 static bool object_create_late(const char *type
)
1969 return !object_create_early(type
);
1972 static void qemu_create_late_backends(void)
1975 qtest_server_init(qtest_chrdev
, qtest_log
, &error_fatal
);
1978 net_init_clients(&error_fatal
);
1980 object_option_foreach_add(object_create_late
);
1982 if (tpm_init() < 0) {
1986 qemu_opts_foreach(qemu_find_opts("mon"),
1987 mon_init_func
, NULL
, &error_fatal
);
1989 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
1991 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
1993 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
1996 /* now chardevs have been created we may have semihosting to connect */
1997 qemu_semihosting_connect_chardevs();
1998 qemu_semihosting_console_init();
2001 static bool have_custom_ram_size(void)
2003 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2004 return !!qemu_opt_get_size(opts
, "size", 0);
2007 static void qemu_resolve_machine_memdev(void)
2009 if (current_machine
->ram_memdev_id
) {
2011 ram_addr_t backend_size
;
2013 backend
= object_resolve_path_type(current_machine
->ram_memdev_id
,
2014 TYPE_MEMORY_BACKEND
, NULL
);
2016 error_report("Memory backend '%s' not found",
2017 current_machine
->ram_memdev_id
);
2020 backend_size
= object_property_get_uint(backend
, "size", &error_abort
);
2021 if (have_custom_ram_size() && backend_size
!= ram_size
) {
2022 error_report("Size specified by -m option must match size of "
2023 "explicitly specified 'memory-backend' property");
2027 error_report("'-mem-path' can't be used together with"
2028 "'-machine memory-backend'");
2031 ram_size
= backend_size
;
2034 if (!xen_enabled()) {
2035 /* On 32-bit hosts, QEMU is limited by virtual address space */
2036 if (ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
2037 error_report("at most 2047 MB RAM can be simulated");
2043 static void set_memory_options(MachineClass
*mc
)
2046 const char *mem_str
;
2047 const ram_addr_t default_ram_size
= mc
->default_ram_size
;
2048 QemuOpts
*opts
= qemu_find_opts_singleton("memory");
2051 loc_push_none(&loc
);
2052 qemu_opts_loc_restore(opts
);
2055 mem_str
= qemu_opt_get(opts
, "size");
2058 error_report("missing 'size' option value");
2062 sz
= qemu_opt_get_size(opts
, "size", ram_size
);
2064 /* Fix up legacy suffix-less format */
2065 if (g_ascii_isdigit(mem_str
[strlen(mem_str
) - 1])) {
2066 uint64_t overflow_check
= sz
;
2069 if (sz
/ MiB
!= overflow_check
) {
2070 error_report("too large 'size' option value");
2076 /* backward compatibility behaviour for case "-m 0" */
2078 sz
= default_ram_size
;
2081 sz
= QEMU_ALIGN_UP(sz
, 8192);
2082 if (mc
->fixup_ram_size
) {
2083 sz
= mc
->fixup_ram_size(sz
);
2086 if (ram_size
!= sz
) {
2087 error_report("ram size too large");
2091 maxram_size
= ram_size
;
2093 if (qemu_opt_get(opts
, "maxmem")) {
2096 sz
= qemu_opt_get_size(opts
, "maxmem", 0);
2097 slots
= qemu_opt_get_number(opts
, "slots", 0);
2098 if (sz
< ram_size
) {
2099 error_report("invalid value of -m option maxmem: "
2100 "maximum memory size (0x%" PRIx64
") must be at least "
2101 "the initial memory size (0x" RAM_ADDR_FMT
")",
2104 } else if (slots
&& sz
== ram_size
) {
2105 error_report("invalid value of -m option maxmem: "
2106 "memory slots were specified but maximum memory size "
2107 "(0x%" PRIx64
") is equal to the initial memory size "
2108 "(0x" RAM_ADDR_FMT
")", sz
, ram_size
);
2114 } else if (qemu_opt_get(opts
, "slots")) {
2115 error_report("invalid -m option value: missing 'maxmem' option");
2122 static void qemu_create_machine(QDict
*qdict
)
2124 MachineClass
*machine_class
= select_machine(qdict
, &error_fatal
);
2125 object_set_machine_compat_props(machine_class
->compat_props
);
2127 set_memory_options(machine_class
);
2129 current_machine
= MACHINE(object_new_with_class(OBJECT_CLASS(machine_class
)));
2130 object_property_add_child(object_get_root(), "machine",
2131 OBJECT(current_machine
));
2132 object_property_add_child(container_get(OBJECT(current_machine
),
2134 "sysbus", OBJECT(sysbus_get_default()));
2136 if (machine_class
->minimum_page_bits
) {
2137 if (!set_preferred_target_page_bits(machine_class
->minimum_page_bits
)) {
2138 /* This would be a board error: specifying a minimum smaller than
2139 * a target's compile-time fixed setting.
2141 g_assert_not_reached();
2145 cpu_exec_init_all();
2148 if (machine_class
->hw_version
) {
2149 qemu_set_hw_version(machine_class
->hw_version
);
2153 * Get the default machine options from the machine if it is not already
2154 * specified either by the configuration file or by the command line.
2156 if (machine_class
->default_machine_opts
) {
2157 QDict
*default_opts
=
2158 keyval_parse(machine_class
->default_machine_opts
, NULL
, NULL
,
2160 qemu_apply_legacy_machine_options(default_opts
);
2161 object_set_properties_from_keyval(OBJECT(current_machine
), default_opts
,
2162 false, &error_abort
);
2163 qobject_unref(default_opts
);
2167 static int global_init_func(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2171 g
= g_malloc0(sizeof(*g
));
2172 g
->driver
= qemu_opt_get(opts
, "driver");
2173 g
->property
= qemu_opt_get(opts
, "property");
2174 g
->value
= qemu_opt_get(opts
, "value");
2175 qdev_prop_register_global(g
);
2180 * Return whether configuration group @group is stored in QemuOpts, or
2181 * recorded as one or more QDicts by qemu_record_config_group.
2183 static bool is_qemuopts_group(const char *group
)
2185 if (g_str_equal(group
, "object") ||
2186 g_str_equal(group
, "machine") ||
2187 g_str_equal(group
, "smp-opts") ||
2188 g_str_equal(group
, "boot-opts")) {
2194 static void qemu_record_config_group(const char *group
, QDict
*dict
,
2195 bool from_json
, Error
**errp
)
2197 if (g_str_equal(group
, "object")) {
2198 Visitor
*v
= qobject_input_visitor_new_keyval(QOBJECT(dict
));
2199 object_option_add_visitor(v
);
2201 } else if (g_str_equal(group
, "machine")) {
2203 * Cannot merge string-valued and type-safe dictionaries, so JSON
2204 * is not accepted yet for -M.
2207 keyval_merge(machine_opts_dict
, dict
, errp
);
2208 } else if (g_str_equal(group
, "smp-opts")) {
2209 machine_merge_property("smp", dict
, &error_fatal
);
2210 } else if (g_str_equal(group
, "boot-opts")) {
2211 machine_merge_property("boot", dict
, &error_fatal
);
2218 * Parse non-QemuOpts config file groups, pass the rest to
2219 * qemu_config_do_parse.
2221 static void qemu_parse_config_group(const char *group
, QDict
*qdict
,
2222 void *opaque
, Error
**errp
)
2225 if (is_qemuopts_group(group
)) {
2226 qemu_config_do_parse(group
, qdict
, opaque
, errp
);
2230 crumpled
= qdict_crumple(qdict
, errp
);
2234 switch (qobject_type(crumpled
)) {
2236 qemu_record_config_group(group
, qobject_to(QDict
, crumpled
), false, errp
);
2239 error_setg(errp
, "Lists cannot be at top level of a configuration section");
2242 g_assert_not_reached();
2244 qobject_unref(crumpled
);
2247 static void qemu_read_default_config_file(Error
**errp
)
2251 g_autofree
char *file
= get_relocated_path(CONFIG_QEMU_CONFDIR
"/qemu.conf");
2253 ret
= qemu_read_config_file(file
, qemu_parse_config_group
, errp
);
2255 if (ret
== -ENOENT
) {
2262 static void qemu_set_option(const char *str
, Error
**errp
)
2264 char group
[64], id
[64], arg
[64];
2269 rc
= sscanf(str
, "%63[^.].%63[^.].%63[^=]%n", group
, id
, arg
, &offset
);
2270 if (rc
< 3 || str
[offset
] != '=') {
2271 error_setg(errp
, "can't parse: \"%s\"", str
);
2275 if (!is_qemuopts_group(group
)) {
2276 error_setg(errp
, "-set is not supported with %s", group
);
2278 list
= qemu_find_opts_err(group
, errp
);
2280 opts
= qemu_opts_find(list
, id
);
2282 error_setg(errp
, "there is no %s \"%s\" defined", group
, id
);
2285 qemu_opt_set(opts
, arg
, str
+ offset
+ 1, errp
);
2290 static void user_register_global_props(void)
2292 qemu_opts_foreach(qemu_find_opts("global"),
2293 global_init_func
, NULL
, NULL
);
2296 static int do_configure_icount(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2298 icount_configure(opts
, errp
);
2302 static int accelerator_set_property(void *opaque
,
2303 const char *name
, const char *value
,
2306 return object_parse_property_opt(opaque
, name
, value
, "accel", errp
);
2309 static int do_configure_accelerator(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2311 bool *p_init_failed
= opaque
;
2312 const char *acc
= qemu_opt_get(opts
, "accel");
2313 AccelClass
*ac
= accel_find(acc
);
2316 bool qtest_with_kvm
;
2318 qtest_with_kvm
= g_str_equal(acc
, "kvm") && qtest_chrdev
!= NULL
;
2321 *p_init_failed
= true;
2322 if (!qtest_with_kvm
) {
2323 error_report("invalid accelerator %s", acc
);
2327 accel
= ACCEL(object_new_with_class(OBJECT_CLASS(ac
)));
2328 object_apply_compat_props(OBJECT(accel
));
2329 qemu_opt_foreach(opts
, accelerator_set_property
,
2333 ret
= accel_init_machine(accel
, current_machine
);
2335 *p_init_failed
= true;
2336 if (!qtest_with_kvm
|| ret
!= -ENOENT
) {
2337 error_report("failed to initialize %s: %s", acc
, strerror(-ret
));
2345 static void configure_accelerators(const char *progname
)
2347 bool init_failed
= false;
2349 qemu_opts_foreach(qemu_find_opts("icount"),
2350 do_configure_icount
, NULL
, &error_fatal
);
2352 if (QTAILQ_EMPTY(&qemu_accel_opts
.head
)) {
2353 char **accel_list
, **tmp
;
2355 if (accelerators
== NULL
) {
2356 /* Select the default accelerator */
2357 bool have_tcg
= accel_find("tcg");
2358 bool have_kvm
= accel_find("kvm");
2360 if (have_tcg
&& have_kvm
) {
2361 if (g_str_has_suffix(progname
, "kvm")) {
2362 /* If the program name ends with "kvm", we prefer KVM */
2363 accelerators
= "kvm:tcg";
2365 accelerators
= "tcg:kvm";
2367 } else if (have_kvm
) {
2368 accelerators
= "kvm";
2369 } else if (have_tcg
) {
2370 accelerators
= "tcg";
2372 error_report("No accelerator selected and"
2373 " no default accelerator available");
2377 accel_list
= g_strsplit(accelerators
, ":", 0);
2379 for (tmp
= accel_list
; *tmp
; tmp
++) {
2381 * Filter invalid accelerators here, to prevent obscenities
2382 * such as "-machine accel=tcg,,thread=single".
2384 if (accel_find(*tmp
)) {
2385 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp
, true);
2388 error_report("invalid accelerator %s", *tmp
);
2391 g_strfreev(accel_list
);
2393 if (accelerators
!= NULL
) {
2394 error_report("The -accel and \"-machine accel=\" options are incompatible");
2399 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2400 do_configure_accelerator
, &init_failed
, &error_fatal
)) {
2402 error_report("no accelerator found");
2407 if (init_failed
&& !qtest_chrdev
) {
2408 AccelClass
*ac
= ACCEL_GET_CLASS(current_accel());
2409 error_report("falling back to %s", ac
->name
);
2412 if (icount_enabled() && !tcg_enabled()) {
2413 error_report("-icount is not allowed with hardware virtualization");
2418 static void create_default_memdev(MachineState
*ms
, const char *path
)
2421 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
2423 obj
= object_new(path
? TYPE_MEMORY_BACKEND_FILE
: TYPE_MEMORY_BACKEND_RAM
);
2425 object_property_set_str(obj
, "mem-path", path
, &error_fatal
);
2427 object_property_set_int(obj
, "size", ms
->ram_size
, &error_fatal
);
2428 object_property_add_child(object_get_objects_root(), mc
->default_ram_id
,
2430 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2431 object_property_set_bool(obj
, "x-use-canonical-path-for-ramblock-id",
2432 false, &error_fatal
);
2433 user_creatable_complete(USER_CREATABLE(obj
), &error_fatal
);
2435 object_property_set_str(OBJECT(ms
), "memory-backend", mc
->default_ram_id
,
2439 static void qemu_validate_options(const QDict
*machine_opts
)
2441 const char *kernel_filename
= qdict_get_try_str(machine_opts
, "kernel");
2442 const char *initrd_filename
= qdict_get_try_str(machine_opts
, "initrd");
2443 const char *kernel_cmdline
= qdict_get_try_str(machine_opts
, "append");
2445 if (kernel_filename
== NULL
) {
2446 if (kernel_cmdline
!= NULL
) {
2447 error_report("-append only allowed with -kernel option");
2451 if (initrd_filename
!= NULL
) {
2452 error_report("-initrd only allowed with -kernel option");
2457 if (loadvm
&& preconfig_requested
) {
2458 error_report("'preconfig' and 'loadvm' options are "
2459 "mutually exclusive");
2462 if (incoming
&& preconfig_requested
&& strcmp(incoming
, "defer") != 0) {
2463 error_report("'preconfig' supports '-incoming defer' only");
2467 #ifdef CONFIG_CURSES
2468 if (is_daemonized() && dpy
.type
== DISPLAY_TYPE_CURSES
) {
2469 error_report("curses display cannot be used with -daemonize");
2475 static void qemu_process_sugar_options(void)
2478 QObject
*smp
= qdict_get(machine_opts_dict
, "smp");
2479 if (smp
&& qobject_type(smp
) == QTYPE_QDICT
) {
2480 QObject
*cpus
= qdict_get(qobject_to(QDict
, smp
), "cpus");
2481 if (cpus
&& qobject_type(cpus
) == QTYPE_QSTRING
) {
2482 const char *val
= qstring_get_str(qobject_to(QString
, cpus
));
2483 object_register_sugar_prop("memory-backend", "prealloc-threads",
2487 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2491 int i
= select_watchdog(watchdog
);
2493 exit (i
== 1 ? 1 : 0);
2497 /* -action processing */
2500 * Process all the -action parameters parsed from cmdline.
2502 static int process_runstate_actions(void *opaque
, QemuOpts
*opts
, Error
**errp
)
2504 Error
*local_err
= NULL
;
2505 QDict
*qdict
= qemu_opts_to_qdict(opts
, NULL
);
2506 QObject
*ret
= NULL
;
2507 qmp_marshal_set_action(qdict
, &ret
, &local_err
);
2509 qobject_unref(qdict
);
2511 error_propagate(errp
, local_err
);
2517 static void qemu_process_early_options(void)
2519 #ifdef CONFIG_SECCOMP
2520 QemuOptsList
*olist
= qemu_find_opts_err("sandbox", NULL
);
2522 qemu_opts_foreach(olist
, parse_sandbox
, NULL
, &error_fatal
);
2526 qemu_opts_foreach(qemu_find_opts("name"),
2527 parse_name
, NULL
, &error_fatal
);
2529 if (qemu_opts_foreach(qemu_find_opts("action"),
2530 process_runstate_actions
, NULL
, &error_fatal
)) {
2535 qemu_opts_foreach(qemu_find_opts("add-fd"),
2536 parse_add_fd
, NULL
, &error_fatal
);
2538 qemu_opts_foreach(qemu_find_opts("add-fd"),
2539 cleanup_add_fd
, NULL
, &error_fatal
);
2542 /* Open the logfile at this point and set the log mask if necessary. */
2546 mask
= qemu_str_to_log_mask(log_mask
);
2548 qemu_print_log_usage(stdout
);
2552 qemu_set_log_filename_flags(log_file
, mask
, &error_fatal
);
2555 qemu_add_default_firmwarepath();
2558 static void qemu_process_help_options(void)
2561 * Check for -cpu help and -device help before we call select_machine(),
2562 * which will return an error if the architecture has no default machine
2563 * type and the user did not specify one, so that the user doesn't need
2564 * to say '-cpu help -machine something'.
2566 if (cpu_option
&& is_help_option(cpu_option
)) {
2567 list_cpus(cpu_option
);
2571 if (qemu_opts_foreach(qemu_find_opts("device"),
2572 device_help_func
, NULL
, NULL
)) {
2576 /* -L help lists the data directories and exits. */
2577 if (list_data_dirs
) {
2578 qemu_list_data_dirs();
2583 static void qemu_maybe_daemonize(const char *pid_file
)
2588 rcu_disable_atfork();
2590 if (pid_file
&& !qemu_write_pidfile(pid_file
, &err
)) {
2591 error_reportf_err(err
, "cannot create PID file: ");
2595 qemu_unlink_pidfile_notifier
.notify
= qemu_unlink_pidfile
;
2596 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier
);
2599 static void qemu_init_displays(void)
2603 /* init local displays */
2604 ds
= init_displaystate();
2605 qemu_display_init(ds
, &dpy
);
2607 /* must be after terminal init, SDL library changes signal handlers */
2608 os_setup_signal_handling();
2610 /* init remote displays */
2612 qemu_opts_foreach(qemu_find_opts("vnc"),
2613 vnc_init_func
, NULL
, &error_fatal
);
2617 qemu_spice
.display_init();
2621 static void qemu_init_board(void)
2623 MachineClass
*machine_class
= MACHINE_GET_CLASS(current_machine
);
2625 if (machine_class
->default_ram_id
&& current_machine
->ram_size
&&
2626 numa_uses_legacy_mem() && !current_machine
->ram_memdev_id
) {
2627 create_default_memdev(current_machine
, mem_path
);
2630 /* process plugin before CPUs are created, but once -smp has been parsed */
2631 qemu_plugin_load_list(&plugin_list
, &error_fatal
);
2633 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2634 machine_run_board_init(current_machine
);
2636 drive_check_orphaned();
2640 if (hax_enabled()) {
2641 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2646 static void qemu_create_cli_devices(void)
2652 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2653 parse_fw_cfg
, fw_cfg_find(), &error_fatal
);
2655 /* init USB devices */
2656 if (machine_usb(current_machine
)) {
2657 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
2661 /* init generic devices */
2662 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE
);
2663 qemu_opts_foreach(qemu_find_opts("device"),
2664 device_init_func
, NULL
, &error_fatal
);
2665 QTAILQ_FOREACH(opt
, &device_opts
, next
) {
2667 loc_push_restore(&opt
->loc
);
2669 * TODO Eventually we should call qmp_device_add() here to make sure it
2670 * behaves the same, but QMP still has to accept incorrectly typed
2671 * options until libvirt is fixed and we want to be strict on the CLI
2672 * from the start, so call qdev_device_add_from_qdict() directly for
2675 dev
= qdev_device_add_from_qdict(opt
->opts
, true, &error_fatal
);
2676 object_unref(OBJECT(dev
));
2679 rom_reset_order_override();
2682 static void qemu_machine_creation_done(void)
2684 MachineState
*machine
= MACHINE(qdev_get_machine());
2686 /* Did we create any drives that we failed to create a device for? */
2687 drive_check_orphaned();
2689 /* Don't warn about the default network setup that you get if
2690 * no command line -net or -netdev options are specified. There
2691 * are two cases that we would otherwise complain about:
2692 * (1) board doesn't support a NIC but the implicit "-net nic"
2694 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2695 * sets up a nic that isn't connected to anything.
2697 if (!default_net
&& (!qtest_enabled() || has_defaults
)) {
2698 net_check_clients();
2701 qdev_prop_check_globals();
2703 qdev_machine_creation_done();
2707 * Verify that Confidential Guest Support has actually been initialized
2709 assert(machine
->cgs
->ready
);
2712 if (foreach_device_config(DEV_GDB
, gdbserver_start
) < 0) {
2715 if (!vga_interface_created
&& !default_vga
&&
2716 vga_interface_type
!= VGA_NONE
) {
2717 warn_report("A -vga option was passed but this machine "
2718 "type does not use that option; "
2719 "No VGA device has been created");
2723 void qmp_x_exit_preconfig(Error
**errp
)
2725 if (phase_check(PHASE_MACHINE_INITIALIZED
)) {
2726 error_setg(errp
, "The command is permitted only before machine initialization");
2731 qemu_create_cli_devices();
2732 qemu_machine_creation_done();
2735 load_snapshot(loadvm
, NULL
, false, NULL
, &error_fatal
);
2737 if (replay_mode
!= REPLAY_MODE_NONE
) {
2738 replay_vmstate_init();
2742 Error
*local_err
= NULL
;
2743 if (strcmp(incoming
, "defer") != 0) {
2744 qmp_migrate_incoming(incoming
, &local_err
);
2746 error_reportf_err(local_err
, "-incoming %s: ", incoming
);
2750 } else if (autostart
) {
2755 void qemu_init(int argc
, char **argv
, char **envp
)
2758 QemuOpts
*icount_opts
= NULL
, *accel_opts
= NULL
;
2759 QemuOptsList
*olist
;
2762 MachineClass
*machine_class
;
2763 bool userconfig
= true;
2764 FILE *vmstate_dump_file
= NULL
;
2766 qemu_add_opts(&qemu_drive_opts
);
2767 qemu_add_drive_opts(&qemu_legacy_drive_opts
);
2768 qemu_add_drive_opts(&qemu_common_drive_opts
);
2769 qemu_add_drive_opts(&qemu_drive_opts
);
2770 qemu_add_drive_opts(&bdrv_runtime_opts
);
2771 qemu_add_opts(&qemu_chardev_opts
);
2772 qemu_add_opts(&qemu_device_opts
);
2773 qemu_add_opts(&qemu_netdev_opts
);
2774 qemu_add_opts(&qemu_nic_opts
);
2775 qemu_add_opts(&qemu_net_opts
);
2776 qemu_add_opts(&qemu_rtc_opts
);
2777 qemu_add_opts(&qemu_global_opts
);
2778 qemu_add_opts(&qemu_mon_opts
);
2779 qemu_add_opts(&qemu_trace_opts
);
2780 qemu_plugin_add_opts();
2781 qemu_add_opts(&qemu_option_rom_opts
);
2782 qemu_add_opts(&qemu_accel_opts
);
2783 qemu_add_opts(&qemu_mem_opts
);
2784 qemu_add_opts(&qemu_smp_opts
);
2785 qemu_add_opts(&qemu_boot_opts
);
2786 qemu_add_opts(&qemu_add_fd_opts
);
2787 qemu_add_opts(&qemu_object_opts
);
2788 qemu_add_opts(&qemu_tpmdev_opts
);
2789 qemu_add_opts(&qemu_overcommit_opts
);
2790 qemu_add_opts(&qemu_msg_opts
);
2791 qemu_add_opts(&qemu_name_opts
);
2792 qemu_add_opts(&qemu_numa_opts
);
2793 qemu_add_opts(&qemu_icount_opts
);
2794 qemu_add_opts(&qemu_semihosting_config_opts
);
2795 qemu_add_opts(&qemu_fw_cfg_opts
);
2796 qemu_add_opts(&qemu_action_opts
);
2797 module_call_init(MODULE_INIT_OPTS
);
2799 error_init(argv
[0]);
2800 qemu_init_exec_dir(argv
[0]);
2802 qemu_init_arch_modules();
2804 qemu_init_subsystems();
2806 /* first pass of option parsing */
2808 while (optind
< argc
) {
2809 if (argv
[optind
][0] != '-') {
2813 const QEMUOption
*popt
;
2815 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2816 switch (popt
->index
) {
2817 case QEMU_OPTION_nouserconfig
:
2824 machine_opts_dict
= qdict_new();
2826 qemu_read_default_config_file(&error_fatal
);
2829 /* second pass of option parsing */
2834 if (argv
[optind
][0] != '-') {
2835 loc_set_cmdline(argv
, optind
, 1);
2836 drive_add(IF_DEFAULT
, 0, argv
[optind
++], HD_OPTS
);
2838 const QEMUOption
*popt
;
2840 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
2841 if (!(popt
->arch_mask
& arch_type
)) {
2842 error_report("Option not supported for this target");
2845 switch(popt
->index
) {
2846 case QEMU_OPTION_cpu
:
2847 /* hw initialization will check this */
2848 cpu_option
= optarg
;
2850 case QEMU_OPTION_hda
:
2851 case QEMU_OPTION_hdb
:
2852 case QEMU_OPTION_hdc
:
2853 case QEMU_OPTION_hdd
:
2854 drive_add(IF_DEFAULT
, popt
->index
- QEMU_OPTION_hda
, optarg
,
2857 case QEMU_OPTION_blockdev
:
2860 BlockdevOptionsQueueEntry
*bdo
;
2862 v
= qobject_input_visitor_new_str(optarg
, "driver",
2865 bdo
= g_new(BlockdevOptionsQueueEntry
, 1);
2866 visit_type_BlockdevOptions(v
, NULL
, &bdo
->bdo
,
2869 loc_save(&bdo
->loc
);
2870 QSIMPLEQ_INSERT_TAIL(&bdo_queue
, bdo
, entry
);
2873 case QEMU_OPTION_drive
:
2874 opts
= qemu_opts_parse_noisily(qemu_find_opts("drive"),
2880 case QEMU_OPTION_set
:
2881 qemu_set_option(optarg
, &error_fatal
);
2883 case QEMU_OPTION_global
:
2884 if (qemu_global_option(optarg
) != 0)
2887 case QEMU_OPTION_mtdblock
:
2888 drive_add(IF_MTD
, -1, optarg
, MTD_OPTS
);
2890 case QEMU_OPTION_sd
:
2891 drive_add(IF_SD
, -1, optarg
, SD_OPTS
);
2893 case QEMU_OPTION_pflash
:
2894 drive_add(IF_PFLASH
, -1, optarg
, PFLASH_OPTS
);
2896 case QEMU_OPTION_snapshot
:
2898 Error
*blocker
= NULL
;
2900 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
,
2902 replay_add_blocker(blocker
);
2905 case QEMU_OPTION_numa
:
2906 opts
= qemu_opts_parse_noisily(qemu_find_opts("numa"),
2912 case QEMU_OPTION_display
:
2913 parse_display(optarg
);
2915 case QEMU_OPTION_nographic
:
2916 qdict_put_str(machine_opts_dict
, "graphics", "off");
2918 dpy
.type
= DISPLAY_TYPE_NONE
;
2920 case QEMU_OPTION_curses
:
2921 warn_report("-curses is deprecated, "
2922 "use -display curses instead.");
2923 #ifdef CONFIG_CURSES
2924 dpy
.type
= DISPLAY_TYPE_CURSES
;
2926 error_report("curses or iconv support is disabled");
2930 case QEMU_OPTION_portrait
:
2931 graphic_rotate
= 90;
2933 case QEMU_OPTION_rotate
:
2934 graphic_rotate
= strtol(optarg
, (char **) &optarg
, 10);
2935 if (graphic_rotate
!= 0 && graphic_rotate
!= 90 &&
2936 graphic_rotate
!= 180 && graphic_rotate
!= 270) {
2937 error_report("only 90, 180, 270 deg rotation is available");
2941 case QEMU_OPTION_kernel
:
2942 qdict_put_str(machine_opts_dict
, "kernel", optarg
);
2944 case QEMU_OPTION_initrd
:
2945 qdict_put_str(machine_opts_dict
, "initrd", optarg
);
2947 case QEMU_OPTION_append
:
2948 qdict_put_str(machine_opts_dict
, "append", optarg
);
2950 case QEMU_OPTION_dtb
:
2951 qdict_put_str(machine_opts_dict
, "dtb", optarg
);
2953 case QEMU_OPTION_cdrom
:
2954 drive_add(IF_DEFAULT
, 2, optarg
, CDROM_OPTS
);
2956 case QEMU_OPTION_boot
:
2957 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg
);
2959 case QEMU_OPTION_fda
:
2960 case QEMU_OPTION_fdb
:
2961 drive_add(IF_FLOPPY
, popt
->index
- QEMU_OPTION_fda
,
2964 case QEMU_OPTION_no_fd_bootchk
:
2967 case QEMU_OPTION_netdev
:
2969 if (net_client_parse(qemu_find_opts("netdev"), optarg
) == -1) {
2973 case QEMU_OPTION_nic
:
2975 if (net_client_parse(qemu_find_opts("nic"), optarg
) == -1) {
2979 case QEMU_OPTION_net
:
2981 if (net_client_parse(qemu_find_opts("net"), optarg
) == -1) {
2985 #ifdef CONFIG_LIBISCSI
2986 case QEMU_OPTION_iscsi
:
2987 opts
= qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2994 case QEMU_OPTION_audio_help
:
2995 audio_legacy_help();
2998 case QEMU_OPTION_audiodev
:
2999 audio_parse_option(optarg
);
3001 case QEMU_OPTION_soundhw
:
3002 select_soundhw (optarg
);
3007 case QEMU_OPTION_version
:
3012 opts
= qemu_opts_parse_noisily(qemu_find_opts("memory"),
3019 case QEMU_OPTION_tpmdev
:
3020 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg
) < 0) {
3025 case QEMU_OPTION_mempath
:
3028 case QEMU_OPTION_mem_prealloc
:
3037 case QEMU_OPTION_DFILTER
:
3038 qemu_set_dfilter_ranges(optarg
, &error_fatal
);
3040 case QEMU_OPTION_seed
:
3041 qemu_guest_random_seed_main(optarg
, &error_fatal
);
3044 add_device_config(DEV_GDB
, "tcp::" DEFAULT_GDBSTUB_PORT
);
3046 case QEMU_OPTION_gdb
:
3047 add_device_config(DEV_GDB
, optarg
);
3050 if (is_help_option(optarg
)) {
3051 list_data_dirs
= true;
3053 qemu_add_data_dir(g_strdup(optarg
));
3056 case QEMU_OPTION_bios
:
3057 qdict_put_str(machine_opts_dict
, "firmware", optarg
);
3059 case QEMU_OPTION_singlestep
:
3066 keyboard_layout
= optarg
;
3068 case QEMU_OPTION_vga
:
3077 w
= strtol(p
, (char **)&p
, 10);
3080 error_report("invalid resolution or depth");
3086 h
= strtol(p
, (char **)&p
, 10);
3091 depth
= strtol(p
, (char **)&p
, 10);
3092 if (depth
!= 1 && depth
!= 2 && depth
!= 4 &&
3093 depth
!= 8 && depth
!= 15 && depth
!= 16 &&
3094 depth
!= 24 && depth
!= 32)
3096 } else if (*p
== '\0') {
3097 depth
= graphic_depth
;
3104 graphic_depth
= depth
;
3107 case QEMU_OPTION_echr
:
3110 term_escape_char
= strtol(optarg
, &r
, 0);
3112 printf("Bad argument to echr\n");
3115 case QEMU_OPTION_monitor
:
3116 default_monitor
= 0;
3117 if (strncmp(optarg
, "none", 4)) {
3118 monitor_parse(optarg
, "readline", false);
3121 case QEMU_OPTION_qmp
:
3122 monitor_parse(optarg
, "control", false);
3123 default_monitor
= 0;
3125 case QEMU_OPTION_qmp_pretty
:
3126 monitor_parse(optarg
, "control", true);
3127 default_monitor
= 0;
3129 case QEMU_OPTION_mon
:
3130 opts
= qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg
,
3135 default_monitor
= 0;
3137 case QEMU_OPTION_chardev
:
3138 opts
= qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3144 case QEMU_OPTION_fsdev
:
3145 olist
= qemu_find_opts("fsdev");
3147 error_report("fsdev support is disabled");
3150 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3155 case QEMU_OPTION_virtfs
: {
3158 const char *writeout
, *sock_fd
, *socket
, *path
, *security_model
,
3161 olist
= qemu_find_opts("virtfs");
3163 error_report("virtfs support is disabled");
3166 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3171 if (qemu_opt_get(opts
, "fsdriver") == NULL
||
3172 qemu_opt_get(opts
, "mount_tag") == NULL
) {
3173 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3176 fsdev
= qemu_opts_create(qemu_find_opts("fsdev"),
3177 qemu_opts_id(opts
) ?:
3178 qemu_opt_get(opts
, "mount_tag"),
3181 error_report("duplicate or invalid fsdev id: %s",
3182 qemu_opt_get(opts
, "mount_tag"));
3186 writeout
= qemu_opt_get(opts
, "writeout");
3188 #ifdef CONFIG_SYNC_FILE_RANGE
3189 qemu_opt_set(fsdev
, "writeout", writeout
, &error_abort
);
3191 error_report("writeout=immediate not supported "
3192 "on this platform");
3196 qemu_opt_set(fsdev
, "fsdriver",
3197 qemu_opt_get(opts
, "fsdriver"), &error_abort
);
3198 path
= qemu_opt_get(opts
, "path");
3200 qemu_opt_set(fsdev
, "path", path
, &error_abort
);
3202 security_model
= qemu_opt_get(opts
, "security_model");
3203 if (security_model
) {
3204 qemu_opt_set(fsdev
, "security_model", security_model
,
3207 socket
= qemu_opt_get(opts
, "socket");
3209 qemu_opt_set(fsdev
, "socket", socket
, &error_abort
);
3211 sock_fd
= qemu_opt_get(opts
, "sock_fd");
3213 qemu_opt_set(fsdev
, "sock_fd", sock_fd
, &error_abort
);
3216 qemu_opt_set_bool(fsdev
, "readonly",
3217 qemu_opt_get_bool(opts
, "readonly", 0),
3219 multidevs
= qemu_opt_get(opts
, "multidevs");
3221 qemu_opt_set(fsdev
, "multidevs", multidevs
, &error_abort
);
3223 device
= qemu_opts_create(qemu_find_opts("device"), NULL
, 0,
3225 qemu_opt_set(device
, "driver", "virtio-9p-pci", &error_abort
);
3226 qemu_opt_set(device
, "fsdev",
3227 qemu_opts_id(fsdev
), &error_abort
);
3228 qemu_opt_set(device
, "mount_tag",
3229 qemu_opt_get(opts
, "mount_tag"), &error_abort
);
3232 case QEMU_OPTION_serial
:
3233 add_device_config(DEV_SERIAL
, optarg
);
3235 if (strncmp(optarg
, "mon:", 4) == 0) {
3236 default_monitor
= 0;
3239 case QEMU_OPTION_watchdog
:
3241 error_report("only one watchdog option may be given");
3244 warn_report("-watchdog is deprecated; use -device instead.");
3247 case QEMU_OPTION_action
:
3248 olist
= qemu_find_opts("action");
3249 if (!qemu_opts_parse_noisily(olist
, optarg
, false)) {
3253 case QEMU_OPTION_watchdog_action
: {
3255 opts
= qemu_opts_create(qemu_find_opts("action"), NULL
, 0, &error_abort
);
3256 qemu_opt_set(opts
, "watchdog", optarg
, &error_abort
);
3259 case QEMU_OPTION_parallel
:
3260 add_device_config(DEV_PARALLEL
, optarg
);
3261 default_parallel
= 0;
3262 if (strncmp(optarg
, "mon:", 4) == 0) {
3263 default_monitor
= 0;
3266 case QEMU_OPTION_debugcon
:
3267 add_device_config(DEV_DEBUGCON
, optarg
);
3269 case QEMU_OPTION_loadvm
:
3272 case QEMU_OPTION_full_screen
:
3273 dpy
.has_full_screen
= true;
3274 dpy
.full_screen
= true;
3276 case QEMU_OPTION_alt_grab
:
3278 warn_report("-alt-grab is deprecated, please use "
3279 "-display sdl,grab-mod=lshift-lctrl-lalt instead.");
3281 case QEMU_OPTION_ctrl_grab
:
3283 warn_report("-ctrl-grab is deprecated, please use "
3284 "-display sdl,grab-mod=rctrl instead.");
3286 case QEMU_OPTION_sdl
:
3287 warn_report("-sdl is deprecated, use -display sdl instead.");
3289 dpy
.type
= DISPLAY_TYPE_SDL
;
3292 error_report("SDL support is disabled");
3295 case QEMU_OPTION_pidfile
:
3298 case QEMU_OPTION_win2k_hack
:
3299 win2k_install_hack
= 1;
3301 case QEMU_OPTION_acpitable
:
3302 opts
= qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3307 acpi_table_add(opts
, &error_fatal
);
3309 case QEMU_OPTION_smbios
:
3310 opts
= qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3315 smbios_entry_add(opts
, &error_fatal
);
3317 case QEMU_OPTION_fwcfg
:
3318 opts
= qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3324 case QEMU_OPTION_preconfig
:
3325 preconfig_requested
= true;
3327 case QEMU_OPTION_enable_kvm
:
3328 qdict_put_str(machine_opts_dict
, "accel", "kvm");
3331 case QEMU_OPTION_machine
:
3335 keyval_parse_into(machine_opts_dict
, optarg
, "type", &help
, &error_fatal
);
3337 machine_help_func(machine_opts_dict
);
3342 case QEMU_OPTION_accel
:
3343 accel_opts
= qemu_opts_parse_noisily(qemu_find_opts("accel"),
3345 optarg
= qemu_opt_get(accel_opts
, "accel");
3346 if (!optarg
|| is_help_option(optarg
)) {
3347 printf("Accelerators supported in QEMU binary:\n");
3348 GSList
*el
, *accel_list
= object_class_get_list(TYPE_ACCEL
,
3350 for (el
= accel_list
; el
; el
= el
->next
) {
3351 gchar
*typename
= g_strdup(object_class_get_name(
3352 OBJECT_CLASS(el
->data
)));
3353 /* omit qtest which is used for tests only */
3354 if (g_strcmp0(typename
, ACCEL_CLASS_NAME("qtest")) &&
3355 g_str_has_suffix(typename
, ACCEL_CLASS_SUFFIX
)) {
3356 gchar
**optname
= g_strsplit(typename
,
3357 ACCEL_CLASS_SUFFIX
, 0);
3358 printf("%s\n", optname
[0]);
3359 g_strfreev(optname
);
3363 g_slist_free(accel_list
);
3367 case QEMU_OPTION_usb
:
3368 qdict_put_str(machine_opts_dict
, "usb", "on");
3370 case QEMU_OPTION_usbdevice
:
3371 qdict_put_str(machine_opts_dict
, "usb", "on");
3372 add_device_config(DEV_USB
, optarg
);
3374 case QEMU_OPTION_device
:
3375 if (optarg
[0] == '{') {
3376 QObject
*obj
= qobject_from_json(optarg
, &error_fatal
);
3377 DeviceOption
*opt
= g_new0(DeviceOption
, 1);
3378 opt
->opts
= qobject_to(QDict
, obj
);
3379 loc_save(&opt
->loc
);
3380 assert(opt
->opts
!= NULL
);
3381 QTAILQ_INSERT_TAIL(&device_opts
, opt
, next
);
3383 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3389 case QEMU_OPTION_smp
:
3390 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3393 case QEMU_OPTION_vnc
:
3396 case QEMU_OPTION_no_acpi
:
3397 qdict_put_str(machine_opts_dict
, "acpi", "off");
3399 case QEMU_OPTION_no_hpet
:
3400 qdict_put_str(machine_opts_dict
, "hpet", "off");
3402 case QEMU_OPTION_no_reboot
:
3403 olist
= qemu_find_opts("action");
3404 qemu_opts_parse_noisily(olist
, "reboot=shutdown", false);
3406 case QEMU_OPTION_no_shutdown
:
3407 olist
= qemu_find_opts("action");
3408 qemu_opts_parse_noisily(olist
, "shutdown=pause", false);
3410 case QEMU_OPTION_uuid
:
3411 if (qemu_uuid_parse(optarg
, &qemu_uuid
) < 0) {
3412 error_report("failed to parse UUID string: wrong format");
3415 qemu_uuid_set
= true;
3417 case QEMU_OPTION_option_rom
:
3418 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
3419 error_report("too many option ROMs");
3422 opts
= qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3427 option_rom
[nb_option_roms
].name
= qemu_opt_get(opts
, "romfile");
3428 option_rom
[nb_option_roms
].bootindex
=
3429 qemu_opt_get_number(opts
, "bootindex", -1);
3430 if (!option_rom
[nb_option_roms
].name
) {
3431 error_report("Option ROM file is not specified");
3436 case QEMU_OPTION_semihosting
:
3437 qemu_semihosting_enable();
3439 case QEMU_OPTION_semihosting_config
:
3440 if (qemu_semihosting_config_options(optarg
) != 0) {
3444 case QEMU_OPTION_name
:
3445 opts
= qemu_opts_parse_noisily(qemu_find_opts("name"),
3450 /* Capture guest name if -msg guest-name is used later */
3451 error_guest_name
= qemu_opt_get(opts
, "guest");
3453 case QEMU_OPTION_prom_env
:
3454 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
3455 error_report("too many prom variables");
3458 prom_envs
[nb_prom_envs
] = optarg
;
3461 case QEMU_OPTION_old_param
:
3464 case QEMU_OPTION_rtc
:
3465 opts
= qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg
,
3471 case QEMU_OPTION_icount
:
3472 icount_opts
= qemu_opts_parse_noisily(qemu_find_opts("icount"),
3478 case QEMU_OPTION_incoming
:
3480 runstate_set(RUN_STATE_INMIGRATE
);
3484 case QEMU_OPTION_only_migratable
:
3485 only_migratable
= 1;
3487 case QEMU_OPTION_nodefaults
:
3490 case QEMU_OPTION_xen_domid
:
3491 if (!(accel_find("xen"))) {
3492 error_report("Option not supported for this target");
3495 xen_domid
= atoi(optarg
);
3497 case QEMU_OPTION_xen_attach
:
3498 if (!(accel_find("xen"))) {
3499 error_report("Option not supported for this target");
3502 xen_mode
= XEN_ATTACH
;
3504 case QEMU_OPTION_xen_domid_restrict
:
3505 if (!(accel_find("xen"))) {
3506 error_report("Option not supported for this target");
3509 xen_domid_restrict
= true;
3511 case QEMU_OPTION_trace
:
3512 trace_opt_parse(optarg
);
3514 case QEMU_OPTION_plugin
:
3515 qemu_plugin_opt_parse(optarg
, &plugin_list
);
3517 case QEMU_OPTION_readconfig
:
3518 qemu_read_config_file(optarg
, qemu_parse_config_group
, &error_fatal
);
3521 case QEMU_OPTION_spice
:
3522 olist
= qemu_find_opts_err("spice", NULL
);
3524 error_report("spice support is disabled");
3527 opts
= qemu_opts_parse_noisily(olist
, optarg
, false);
3534 case QEMU_OPTION_qtest
:
3535 qtest_chrdev
= optarg
;
3537 case QEMU_OPTION_qtest_log
:
3540 case QEMU_OPTION_sandbox
:
3541 olist
= qemu_find_opts("sandbox");
3543 #ifndef CONFIG_SECCOMP
3544 error_report("-sandbox support is not enabled "
3545 "in this QEMU binary");
3550 opts
= qemu_opts_parse_noisily(olist
, optarg
, true);
3555 case QEMU_OPTION_add_fd
:
3557 opts
= qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3563 error_report("File descriptor passing is disabled on this "
3568 case QEMU_OPTION_object
:
3569 object_option_parse(optarg
);
3571 case QEMU_OPTION_overcommit
:
3572 opts
= qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3577 enable_mlock
= qemu_opt_get_bool(opts
, "mem-lock", false);
3578 enable_cpu_pm
= qemu_opt_get_bool(opts
, "cpu-pm", false);
3580 case QEMU_OPTION_compat
:
3585 v
= qobject_input_visitor_new_str(optarg
, NULL
,
3588 visit_type_CompatPolicy(v
, NULL
, &opts
, &error_fatal
);
3589 QAPI_CLONE_MEMBERS(CompatPolicy
, &compat_policy
, opts
);
3591 qapi_free_CompatPolicy(opts
);
3595 case QEMU_OPTION_msg
:
3596 opts
= qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg
,
3601 configure_msg(opts
);
3603 case QEMU_OPTION_dump_vmstate
:
3604 if (vmstate_dump_file
) {
3605 error_report("only one '-dump-vmstate' "
3606 "option may be given");
3609 vmstate_dump_file
= fopen(optarg
, "w");
3610 if (vmstate_dump_file
== NULL
) {
3611 error_report("open %s: %s", optarg
, strerror(errno
));
3615 case QEMU_OPTION_enable_sync_profile
:
3618 case QEMU_OPTION_nouserconfig
:
3619 /* Nothing to be parsed here. Especially, do not error out below. */
3622 if (os_parse_cmd_args(popt
->index
, optarg
)) {
3623 error_report("Option not supported in this build");
3630 * Clear error location left behind by the loop.
3631 * Best done right after the loop. Do not insert code here!
3635 qemu_validate_options(machine_opts_dict
);
3636 qemu_process_sugar_options();
3639 * These options affect everything else and should be processed
3640 * before daemonizing.
3642 qemu_process_early_options();
3644 qemu_process_help_options();
3645 qemu_maybe_daemonize(pid_file
);
3648 * The trace backend must be initialized after daemonizing.
3649 * trace_init_backends() will call st_init(), which will create the
3650 * trace thread in the parent, and also register st_flush_trace_buffer()
3651 * in atexit(). This function will force the parent to wait for the
3652 * writeout thread to finish, which will not occur, and the parent
3653 * process will be left in the host.
3655 if (!trace_init_backends()) {
3660 qemu_init_main_loop(&error_fatal
);
3663 user_register_global_props();
3664 replay_configure(icount_opts
);
3666 configure_rtc(qemu_find_opts_singleton("rtc"));
3668 qemu_create_machine(machine_opts_dict
);
3672 qemu_disable_default_devices();
3673 qemu_create_default_devices();
3674 qemu_create_early_backends();
3676 qemu_apply_legacy_machine_options(machine_opts_dict
);
3677 qemu_apply_machine_options(machine_opts_dict
);
3678 qobject_unref(machine_opts_dict
);
3679 phase_advance(PHASE_MACHINE_CREATED
);
3682 * Note: uses machine properties such as kernel-irqchip, must run
3683 * after qemu_apply_machine_options.
3685 configure_accelerators(argv
[0]);
3686 phase_advance(PHASE_ACCEL_CREATED
);
3689 * Beware, QOM objects created before this point miss global and
3690 * compat properties.
3692 * Global properties get set up by qdev_prop_register_global(),
3693 * called from user_register_global_props(), and certain option
3694 * desugaring. Also in CPU feature desugaring (buried in
3695 * parse_cpu_option()), which happens below this point, but may
3696 * only target the CPU type, which can only be created after
3697 * parse_cpu_option() returned the type.
3699 * Machine compat properties: object_set_machine_compat_props().
3700 * Accelerator compat props: object_set_accelerator_compat_props(),
3701 * called from do_configure_accelerator().
3704 machine_class
= MACHINE_GET_CLASS(current_machine
);
3705 if (!qtest_enabled() && machine_class
->deprecation_reason
) {
3706 error_report("Machine type '%s' is deprecated: %s",
3707 machine_class
->name
, machine_class
->deprecation_reason
);
3711 * Note: creates a QOM object, must run only after global and
3712 * compat properties have been set up.
3714 migration_object_init();
3716 qemu_create_late_backends();
3718 /* parse features once if machine provides default cpu_type */
3719 current_machine
->cpu_type
= machine_class
->default_cpu_type
;
3721 current_machine
->cpu_type
= parse_cpu_option(cpu_option
);
3723 /* NB: for machine none cpu_type could STILL be NULL here! */
3725 qemu_resolve_machine_memdev();
3726 parse_numa_opts(current_machine
);
3728 if (vmstate_dump_file
) {
3730 module_load_qom_all();
3731 dump_vmstate_json_to_file(vmstate_dump_file
);
3735 if (!preconfig_requested
) {
3736 qmp_x_exit_preconfig(&error_fatal
);
3738 qemu_init_displays();
3739 accel_setup_post(current_machine
);