mirror of
https://github.com/qemu/qemu.git
synced 2024-12-28 14:43:49 +08:00
51e47cf860
We don't allow to use x-colo capability when replication is not
configured. So, no reason to build COLO when replication is disabled,
it's unusable in this case.
Note also that the check in migrate_caps_check() is not the only
restriction: some functions in migration/colo.c will just abort if
called with not defined CONFIG_REPLICATION, for example:
migration_iteration_finish()
case MIGRATION_STATUS_COLO:
migrate_start_colo_process()
colo_process_checkpoint()
abort()
It could probably make sense to have possibility to enable COLO without
REPLICATION, but this requires deeper audit of colo & replication code,
which may be done later if needed.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Acked-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230428194928.1426370-4-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
1868 lines
54 KiB
Haxe
1868 lines
54 KiB
Haxe
HXCOMM Use DEFHEADING() to define headings in both help text and rST.
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HXCOMM Text between SRST and ERST is copied to the rST version and
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HXCOMM discarded from C version.
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HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
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HXCOMM monitor commands
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HXCOMM HXCOMM can be used for comments, discarded from both rST and C.
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{
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.name = "help|?",
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.args_type = "name:S?",
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.params = "[cmd]",
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.help = "show the help",
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.cmd = hmp_help,
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.flags = "p",
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},
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SRST
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|
``help`` or ``?`` [*cmd*]
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|
Show the help for all commands or just for command *cmd*.
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ERST
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{
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.name = "commit",
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.args_type = "device:B",
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.params = "device|all",
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|
.help = "commit changes to the disk images (if -snapshot is used) or backing files",
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.cmd = hmp_commit,
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},
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SRST
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``commit``
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Commit changes to the disk images (if -snapshot is used) or backing files.
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If the backing file is smaller than the snapshot, then the backing file
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will be resized to be the same size as the snapshot. If the snapshot is
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smaller than the backing file, the backing file will not be truncated.
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If you want the backing file to match the size of the smaller snapshot,
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you can safely truncate it yourself once the commit operation successfully
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completes.
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ERST
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{
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.name = "quit|q",
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.args_type = "",
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.params = "",
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.help = "quit the emulator",
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.cmd = hmp_quit,
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.flags = "p",
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},
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SRST
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``quit`` or ``q``
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Quit the emulator.
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ERST
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{
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.name = "exit_preconfig",
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.args_type = "",
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.params = "",
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.help = "exit the preconfig state",
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.cmd = hmp_exit_preconfig,
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.flags = "p",
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},
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SRST
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``exit_preconfig``
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This command makes QEMU exit the preconfig state and proceed with
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VM initialization using configuration data provided on the command line
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and via the QMP monitor during the preconfig state. The command is only
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available during the preconfig state (i.e. when the --preconfig command
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line option was in use).
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ERST
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{
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.name = "block_resize",
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.args_type = "device:B,size:o",
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.params = "device size",
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.help = "resize a block image",
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.cmd = hmp_block_resize,
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.coroutine = true,
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.flags = "p",
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},
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SRST
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``block_resize``
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Resize a block image while a guest is running. Usually requires guest
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action to see the updated size. Resize to a lower size is supported,
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but should be used with extreme caution. Note that this command only
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resizes image files, it can not resize block devices like LVM volumes.
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ERST
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{
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.name = "block_stream",
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.args_type = "device:B,speed:o?,base:s?",
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.params = "device [speed [base]]",
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.help = "copy data from a backing file into a block device",
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.cmd = hmp_block_stream,
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.flags = "p",
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},
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SRST
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``block_stream``
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Copy data from a backing file into a block device.
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ERST
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{
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.name = "block_job_set_speed",
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.args_type = "device:B,speed:o",
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.params = "device speed",
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.help = "set maximum speed for a background block operation",
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.cmd = hmp_block_job_set_speed,
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.flags = "p",
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},
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SRST
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``block_job_set_speed``
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Set maximum speed for a background block operation.
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ERST
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{
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.name = "block_job_cancel",
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.args_type = "force:-f,device:B",
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.params = "[-f] device",
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.help = "stop an active background block operation (use -f"
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"\n\t\t\t if you want to abort the operation immediately"
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"\n\t\t\t instead of keep running until data is in sync)",
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.cmd = hmp_block_job_cancel,
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.flags = "p",
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},
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SRST
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``block_job_cancel``
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Stop an active background block operation (streaming, mirroring).
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ERST
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{
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.name = "block_job_complete",
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.args_type = "device:B",
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.params = "device",
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.help = "stop an active background block operation",
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.cmd = hmp_block_job_complete,
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.flags = "p",
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},
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SRST
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``block_job_complete``
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Manually trigger completion of an active background block operation.
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For mirroring, this will switch the device to the destination path.
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ERST
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{
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.name = "block_job_pause",
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.args_type = "device:B",
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.params = "device",
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.help = "pause an active background block operation",
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.cmd = hmp_block_job_pause,
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.flags = "p",
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},
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SRST
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``block_job_pause``
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Pause an active block streaming operation.
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ERST
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{
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.name = "block_job_resume",
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.args_type = "device:B",
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.params = "device",
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.help = "resume a paused background block operation",
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.cmd = hmp_block_job_resume,
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.flags = "p",
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},
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SRST
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``block_job_resume``
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Resume a paused block streaming operation.
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ERST
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{
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.name = "eject",
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.args_type = "force:-f,device:B",
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.params = "[-f] device",
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.help = "eject a removable medium (use -f to force it)",
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.cmd = hmp_eject,
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},
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SRST
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``eject [-f]`` *device*
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Eject a removable medium (use -f to force it).
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ERST
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{
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.name = "drive_del",
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.args_type = "id:B",
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.params = "device",
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.help = "remove host block device",
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.cmd = hmp_drive_del,
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},
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SRST
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``drive_del`` *device*
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Remove host block device. The result is that guest generated IO is no longer
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submitted against the host device underlying the disk. Once a drive has
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been deleted, the QEMU Block layer returns -EIO which results in IO
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errors in the guest for applications that are reading/writing to the device.
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These errors are always reported to the guest, regardless of the drive's error
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actions (drive options rerror, werror).
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ERST
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{
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.name = "change",
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.args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
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.params = "device [-f] filename [format [read-only-mode]]",
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.help = "change a removable medium, optional format, use -f to force the operation",
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.cmd = hmp_change,
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},
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SRST
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``change`` *device* *setting*
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Change the configuration of a device.
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``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
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Change the medium for a removable disk device to point to *filename*. eg::
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(qemu) change ide1-cd0 /path/to/some.iso
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``-f``
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forces the operation even if the guest has locked the tray.
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*format* is optional.
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*read-only-mode* may be used to change the read-only status of the device.
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It accepts the following values:
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retain
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Retains the current status; this is the default.
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read-only
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Makes the device read-only.
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read-write
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Makes the device writable.
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``change vnc password`` [*password*]
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Change the password associated with the VNC server. If the new password
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is not supplied, the monitor will prompt for it to be entered. VNC
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passwords are only significant up to 8 letters. eg::
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(qemu) change vnc password
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Password: ********
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ERST
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{
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.name = "screendump",
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.args_type = "filename:F,format:-fs,device:s?,head:i?",
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.params = "filename [-f format] [device [head]]",
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.help = "save screen from head 'head' of display device 'device'"
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"in specified format 'format' as image 'filename'."
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"Currently only 'png' and 'ppm' formats are supported.",
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.cmd = hmp_screendump,
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.coroutine = true,
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},
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SRST
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``screendump`` *filename*
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Save screen into PPM image *filename*.
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ERST
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{
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.name = "logfile",
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.args_type = "filename:F",
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.params = "filename",
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.help = "output logs to 'filename'",
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.cmd = hmp_logfile,
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},
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SRST
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``logfile`` *filename*
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Output logs to *filename*.
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ERST
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{
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.name = "trace-event",
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.args_type = "name:s,option:b,vcpu:i?",
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.params = "name on|off [vcpu]",
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.help = "changes status of a specific trace event "
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"(vcpu: vCPU to set, default is all)",
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.cmd = hmp_trace_event,
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.command_completion = trace_event_completion,
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},
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SRST
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``trace-event``
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changes status of a trace event
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ERST
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#if defined(CONFIG_TRACE_SIMPLE)
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{
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.name = "trace-file",
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.args_type = "op:s?,arg:F?",
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.params = "on|off|flush|set [arg]",
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.help = "open, close, or flush trace file, or set a new file name",
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.cmd = hmp_trace_file,
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},
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SRST
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``trace-file on|off|flush``
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Open, close, or flush the trace file. If no argument is given, the
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status of the trace file is displayed.
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ERST
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#endif
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{
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.name = "log",
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.args_type = "items:s",
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.params = "item1[,...]",
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.help = "activate logging of the specified items",
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.cmd = hmp_log,
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},
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SRST
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``log`` *item1*\ [,...]
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Activate logging of the specified items.
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ERST
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{
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.name = "savevm",
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.args_type = "name:s?",
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.params = "tag",
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.help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
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.cmd = hmp_savevm,
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},
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SRST
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``savevm`` *tag*
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Create a snapshot of the whole virtual machine. If *tag* is
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provided, it is used as human readable identifier. If there is already
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a snapshot with the same tag, it is replaced. More info at
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:ref:`vm_005fsnapshots`.
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Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
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only *tag* as parameter.
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ERST
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{
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.name = "loadvm",
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.args_type = "name:s",
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.params = "tag",
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.help = "restore a VM snapshot from its tag",
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.cmd = hmp_loadvm,
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.command_completion = loadvm_completion,
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},
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SRST
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``loadvm`` *tag*
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Set the whole virtual machine to the snapshot identified by the tag
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*tag*.
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Since 4.0, loadvm stopped accepting snapshot id as parameter.
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ERST
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{
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.name = "delvm",
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.args_type = "name:s",
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.params = "tag",
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.help = "delete a VM snapshot from its tag",
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.cmd = hmp_delvm,
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.command_completion = delvm_completion,
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},
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SRST
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``delvm`` *tag*
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Delete the snapshot identified by *tag*.
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Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
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only *tag* as parameter.
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ERST
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{
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|
.name = "one-insn-per-tb",
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.args_type = "option:s?",
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.params = "[on|off]",
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.help = "run emulation with one guest instruction per translation block",
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.cmd = hmp_one_insn_per_tb,
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},
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SRST
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``one-insn-per-tb [off]``
|
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Run the emulation with one guest instruction per translation block.
|
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This slows down emulation a lot, but can be useful in some situations,
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such as when trying to analyse the logs produced by the ``-d`` option.
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This only has an effect when using TCG, not with KVM or other accelerators.
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If called with option off, the emulation returns to normal mode.
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ERST
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{
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|
.name = "singlestep",
|
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.args_type = "option:s?",
|
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.params = "[on|off]",
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.help = "deprecated synonym for one-insn-per-tb",
|
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.cmd = hmp_one_insn_per_tb,
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|
},
|
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|
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SRST
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``singlestep [off]``
|
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This is a deprecated synonym for the one-insn-per-tb command.
|
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ERST
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|
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{
|
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.name = "stop|s",
|
|
.args_type = "",
|
|
.params = "",
|
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.help = "stop emulation",
|
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.cmd = hmp_stop,
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},
|
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|
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SRST
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``stop`` or ``s``
|
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Stop emulation.
|
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ERST
|
|
|
|
{
|
|
.name = "cont|c",
|
|
.args_type = "",
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|
.params = "",
|
|
.help = "resume emulation",
|
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.cmd = hmp_cont,
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},
|
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|
|
SRST
|
|
``cont`` or ``c``
|
|
Resume emulation.
|
|
ERST
|
|
|
|
{
|
|
.name = "system_wakeup",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "wakeup guest from suspend",
|
|
.cmd = hmp_system_wakeup,
|
|
},
|
|
|
|
SRST
|
|
``system_wakeup``
|
|
Wakeup guest from suspend.
|
|
ERST
|
|
|
|
{
|
|
.name = "gdbserver",
|
|
.args_type = "device:s?",
|
|
.params = "[device]",
|
|
.help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
|
|
.cmd = hmp_gdbserver,
|
|
},
|
|
|
|
SRST
|
|
``gdbserver`` [*port*]
|
|
Start gdbserver session (default *port*\=1234)
|
|
ERST
|
|
|
|
{
|
|
.name = "x",
|
|
.args_type = "fmt:/,addr:l",
|
|
.params = "/fmt addr",
|
|
.help = "virtual memory dump starting at 'addr'",
|
|
.cmd = hmp_memory_dump,
|
|
},
|
|
|
|
SRST
|
|
``x/``\ *fmt* *addr*
|
|
Virtual memory dump starting at *addr*.
|
|
ERST
|
|
|
|
{
|
|
.name = "xp",
|
|
.args_type = "fmt:/,addr:l",
|
|
.params = "/fmt addr",
|
|
.help = "physical memory dump starting at 'addr'",
|
|
.cmd = hmp_physical_memory_dump,
|
|
},
|
|
|
|
SRST
|
|
``xp /``\ *fmt* *addr*
|
|
Physical memory dump starting at *addr*.
|
|
|
|
*fmt* is a format which tells the command how to format the
|
|
data. Its syntax is: ``/{count}{format}{size}``
|
|
|
|
*count*
|
|
is the number of items to be dumped.
|
|
*format*
|
|
can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
|
|
c (char) or i (asm instruction).
|
|
*size*
|
|
can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
|
|
``h`` or ``w`` can be specified with the ``i`` format to
|
|
respectively select 16 or 32 bit code instruction size.
|
|
|
|
Examples:
|
|
|
|
Dump 10 instructions at the current instruction pointer::
|
|
|
|
(qemu) x/10i $eip
|
|
0x90107063: ret
|
|
0x90107064: sti
|
|
0x90107065: lea 0x0(%esi,1),%esi
|
|
0x90107069: lea 0x0(%edi,1),%edi
|
|
0x90107070: ret
|
|
0x90107071: jmp 0x90107080
|
|
0x90107073: nop
|
|
0x90107074: nop
|
|
0x90107075: nop
|
|
0x90107076: nop
|
|
|
|
Dump 80 16 bit values at the start of the video memory::
|
|
|
|
(qemu) xp/80hx 0xb8000
|
|
0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
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|
0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
|
|
0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
|
|
0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
|
|
0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
|
|
0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
|
|
0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
|
|
0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
|
|
0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
|
|
0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
|
|
|
|
ERST
|
|
|
|
{
|
|
.name = "gpa2hva",
|
|
.args_type = "addr:l",
|
|
.params = "addr",
|
|
.help = "print the host virtual address corresponding to a guest physical address",
|
|
.cmd = hmp_gpa2hva,
|
|
},
|
|
|
|
SRST
|
|
``gpa2hva`` *addr*
|
|
Print the host virtual address at which the guest's physical address *addr*
|
|
is mapped.
|
|
ERST
|
|
|
|
#ifdef CONFIG_LINUX
|
|
{
|
|
.name = "gpa2hpa",
|
|
.args_type = "addr:l",
|
|
.params = "addr",
|
|
.help = "print the host physical address corresponding to a guest physical address",
|
|
.cmd = hmp_gpa2hpa,
|
|
},
|
|
#endif
|
|
|
|
SRST
|
|
``gpa2hpa`` *addr*
|
|
Print the host physical address at which the guest's physical address *addr*
|
|
is mapped.
|
|
ERST
|
|
|
|
{
|
|
.name = "gva2gpa",
|
|
.args_type = "addr:l",
|
|
.params = "addr",
|
|
.help = "print the guest physical address corresponding to a guest virtual address",
|
|
.cmd = hmp_gva2gpa,
|
|
},
|
|
|
|
SRST
|
|
``gva2gpa`` *addr*
|
|
Print the guest physical address at which the guest's virtual address *addr*
|
|
is mapped based on the mapping for the current CPU.
|
|
ERST
|
|
|
|
{
|
|
.name = "print|p",
|
|
.args_type = "fmt:/,val:l",
|
|
.params = "/fmt expr",
|
|
.help = "print expression value (use $reg for CPU register access)",
|
|
.cmd = hmp_print,
|
|
},
|
|
|
|
SRST
|
|
``print`` or ``p/``\ *fmt* *expr*
|
|
Print expression value. Only the *format* part of *fmt* is
|
|
used.
|
|
ERST
|
|
|
|
{
|
|
.name = "i",
|
|
.args_type = "fmt:/,addr:i,index:i.",
|
|
.params = "/fmt addr",
|
|
.help = "I/O port read",
|
|
.cmd = hmp_ioport_read,
|
|
},
|
|
|
|
SRST
|
|
``i/``\ *fmt* *addr* [.\ *index*\ ]
|
|
Read I/O port.
|
|
ERST
|
|
|
|
{
|
|
.name = "o",
|
|
.args_type = "fmt:/,addr:i,val:i",
|
|
.params = "/fmt addr value",
|
|
.help = "I/O port write",
|
|
.cmd = hmp_ioport_write,
|
|
},
|
|
|
|
SRST
|
|
``o/``\ *fmt* *addr* *val*
|
|
Write to I/O port.
|
|
ERST
|
|
|
|
{
|
|
.name = "sendkey",
|
|
.args_type = "keys:s,hold-time:i?",
|
|
.params = "keys [hold_ms]",
|
|
.help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
|
|
.cmd = hmp_sendkey,
|
|
.command_completion = sendkey_completion,
|
|
},
|
|
|
|
SRST
|
|
``sendkey`` *keys*
|
|
Send *keys* to the guest. *keys* could be the name of the
|
|
key or the raw value in hexadecimal format. Use ``-`` to press
|
|
several keys simultaneously. Example::
|
|
|
|
sendkey ctrl-alt-f1
|
|
|
|
This command is useful to send keys that your graphical user interface
|
|
intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
|
|
ERST
|
|
{
|
|
.name = "sync-profile",
|
|
.args_type = "op:s?",
|
|
.params = "[on|off|reset]",
|
|
.help = "enable, disable or reset synchronization profiling. "
|
|
"With no arguments, prints whether profiling is on or off.",
|
|
.cmd = hmp_sync_profile,
|
|
},
|
|
|
|
SRST
|
|
``sync-profile [on|off|reset]``
|
|
Enable, disable or reset synchronization profiling. With no arguments, prints
|
|
whether profiling is on or off.
|
|
ERST
|
|
|
|
{
|
|
.name = "system_reset",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "reset the system",
|
|
.cmd = hmp_system_reset,
|
|
},
|
|
|
|
SRST
|
|
``system_reset``
|
|
Reset the system.
|
|
ERST
|
|
|
|
{
|
|
.name = "system_powerdown",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "send system power down event",
|
|
.cmd = hmp_system_powerdown,
|
|
},
|
|
|
|
SRST
|
|
``system_powerdown``
|
|
Power down the system (if supported).
|
|
ERST
|
|
|
|
{
|
|
.name = "sum",
|
|
.args_type = "start:i,size:i",
|
|
.params = "addr size",
|
|
.help = "compute the checksum of a memory region",
|
|
.cmd = hmp_sum,
|
|
},
|
|
|
|
SRST
|
|
``sum`` *addr* *size*
|
|
Compute the checksum of a memory region.
|
|
ERST
|
|
|
|
{
|
|
.name = "device_add",
|
|
.args_type = "device:O",
|
|
.params = "driver[,prop=value][,...]",
|
|
.help = "add device, like -device on the command line",
|
|
.cmd = hmp_device_add,
|
|
.command_completion = device_add_completion,
|
|
},
|
|
|
|
SRST
|
|
``device_add`` *config*
|
|
Add device.
|
|
ERST
|
|
|
|
{
|
|
.name = "device_del",
|
|
.args_type = "id:s",
|
|
.params = "device",
|
|
.help = "remove device",
|
|
.cmd = hmp_device_del,
|
|
.command_completion = device_del_completion,
|
|
},
|
|
|
|
SRST
|
|
``device_del`` *id*
|
|
Remove device *id*. *id* may be a short ID
|
|
or a QOM object path.
|
|
ERST
|
|
|
|
{
|
|
.name = "cpu",
|
|
.args_type = "index:i",
|
|
.params = "index",
|
|
.help = "set the default CPU",
|
|
.cmd = hmp_cpu,
|
|
},
|
|
|
|
SRST
|
|
``cpu`` *index*
|
|
Set the default CPU.
|
|
ERST
|
|
|
|
{
|
|
.name = "mouse_move",
|
|
.args_type = "dx_str:s,dy_str:s,dz_str:s?",
|
|
.params = "dx dy [dz]",
|
|
.help = "send mouse move events",
|
|
.cmd = hmp_mouse_move,
|
|
},
|
|
|
|
SRST
|
|
``mouse_move`` *dx* *dy* [*dz*]
|
|
Move the active mouse to the specified coordinates *dx* *dy*
|
|
with optional scroll axis *dz*.
|
|
ERST
|
|
|
|
{
|
|
.name = "mouse_button",
|
|
.args_type = "button_state:i",
|
|
.params = "state",
|
|
.help = "change mouse button state (1=L, 2=M, 4=R)",
|
|
.cmd = hmp_mouse_button,
|
|
},
|
|
|
|
SRST
|
|
``mouse_button`` *val*
|
|
Change the active mouse button state *val* (1=L, 2=M, 4=R).
|
|
ERST
|
|
|
|
{
|
|
.name = "mouse_set",
|
|
.args_type = "index:i",
|
|
.params = "index",
|
|
.help = "set which mouse device receives events",
|
|
.cmd = hmp_mouse_set,
|
|
},
|
|
|
|
SRST
|
|
``mouse_set`` *index*
|
|
Set which mouse device receives events at given *index*, index
|
|
can be obtained with::
|
|
|
|
info mice
|
|
|
|
ERST
|
|
|
|
{
|
|
.name = "wavcapture",
|
|
.args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
|
|
.params = "path audiodev [frequency [bits [channels]]]",
|
|
.help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
|
|
.cmd = hmp_wavcapture,
|
|
},
|
|
SRST
|
|
``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
|
|
Capture audio into *filename* from *audiodev*, using sample rate
|
|
*frequency* bits per sample *bits* and number of channels
|
|
*channels*.
|
|
|
|
Defaults:
|
|
|
|
- Sample rate = 44100 Hz - CD quality
|
|
- Bits = 16
|
|
- Number of channels = 2 - Stereo
|
|
ERST
|
|
|
|
{
|
|
.name = "stopcapture",
|
|
.args_type = "n:i",
|
|
.params = "capture index",
|
|
.help = "stop capture",
|
|
.cmd = hmp_stopcapture,
|
|
},
|
|
SRST
|
|
``stopcapture`` *index*
|
|
Stop capture with a given *index*, index can be obtained with::
|
|
|
|
info capture
|
|
|
|
ERST
|
|
|
|
{
|
|
.name = "memsave",
|
|
.args_type = "val:l,size:i,filename:s",
|
|
.params = "addr size file",
|
|
.help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
|
|
.cmd = hmp_memsave,
|
|
},
|
|
|
|
SRST
|
|
``memsave`` *addr* *size* *file*
|
|
save to disk virtual memory dump starting at *addr* of size *size*.
|
|
ERST
|
|
|
|
{
|
|
.name = "pmemsave",
|
|
.args_type = "val:l,size:i,filename:s",
|
|
.params = "addr size file",
|
|
.help = "save to disk physical memory dump starting at 'addr' of size 'size'",
|
|
.cmd = hmp_pmemsave,
|
|
},
|
|
|
|
SRST
|
|
``pmemsave`` *addr* *size* *file*
|
|
save to disk physical memory dump starting at *addr* of size *size*.
|
|
ERST
|
|
|
|
{
|
|
.name = "boot_set",
|
|
.args_type = "bootdevice:s",
|
|
.params = "bootdevice",
|
|
.help = "define new values for the boot device list",
|
|
.cmd = hmp_boot_set,
|
|
},
|
|
|
|
SRST
|
|
``boot_set`` *bootdevicelist*
|
|
Define new values for the boot device list. Those values will override
|
|
the values specified on the command line through the ``-boot`` option.
|
|
|
|
The values that can be specified here depend on the machine type, but are
|
|
the same that can be specified in the ``-boot`` command line option.
|
|
ERST
|
|
|
|
{
|
|
.name = "nmi",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "inject an NMI",
|
|
.cmd = hmp_nmi,
|
|
},
|
|
SRST
|
|
``nmi`` *cpu*
|
|
Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
|
|
ERST
|
|
|
|
{
|
|
.name = "ringbuf_write",
|
|
.args_type = "device:s,data:s",
|
|
.params = "device data",
|
|
.help = "Write to a ring buffer character device",
|
|
.cmd = hmp_ringbuf_write,
|
|
.command_completion = ringbuf_write_completion,
|
|
},
|
|
|
|
SRST
|
|
``ringbuf_write`` *device* *data*
|
|
Write *data* to ring buffer character device *device*.
|
|
*data* must be a UTF-8 string.
|
|
ERST
|
|
|
|
{
|
|
.name = "ringbuf_read",
|
|
.args_type = "device:s,size:i",
|
|
.params = "device size",
|
|
.help = "Read from a ring buffer character device",
|
|
.cmd = hmp_ringbuf_read,
|
|
.command_completion = ringbuf_write_completion,
|
|
},
|
|
|
|
SRST
|
|
``ringbuf_read`` *device*
|
|
Read and print up to *size* bytes from ring buffer character
|
|
device *device*.
|
|
Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
|
|
character code in hexadecimal. Character ``\`` is printed ``\\``.
|
|
Bug: can screw up when the buffer contains invalid UTF-8 sequences,
|
|
NUL characters, after the ring buffer lost data, and when reading
|
|
stops because the size limit is reached.
|
|
ERST
|
|
|
|
{
|
|
.name = "announce_self",
|
|
.args_type = "interfaces:s?,id:s?",
|
|
.params = "[interfaces] [id]",
|
|
.help = "Trigger GARP/RARP announcements",
|
|
.cmd = hmp_announce_self,
|
|
},
|
|
|
|
SRST
|
|
``announce_self``
|
|
Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
|
|
updating the network infrastructure after a reconfiguration or some forms
|
|
of migration. The timings of the round are set by the migration announce
|
|
parameters. An optional comma separated *interfaces* list restricts the
|
|
announce to the named set of interfaces. An optional *id* can be used to
|
|
start a separate announce timer and to change the parameters of it later.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate",
|
|
.args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
|
|
.params = "[-d] [-b] [-i] [-r] uri",
|
|
.help = "migrate to URI (using -d to not wait for completion)"
|
|
"\n\t\t\t -b for migration without shared storage with"
|
|
" full copy of disk\n\t\t\t -i for migration without "
|
|
"shared storage with incremental copy of disk "
|
|
"(base image shared between src and destination)"
|
|
"\n\t\t\t -r to resume a paused migration",
|
|
.cmd = hmp_migrate,
|
|
},
|
|
|
|
|
|
SRST
|
|
``migrate [-d] [-b] [-i]`` *uri*
|
|
Migrate to *uri* (using -d to not wait for completion).
|
|
|
|
``-b``
|
|
for migration with full copy of disk
|
|
``-i``
|
|
for migration with incremental copy of disk (base image is shared)
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_cancel",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "cancel the current VM migration",
|
|
.cmd = hmp_migrate_cancel,
|
|
},
|
|
|
|
SRST
|
|
``migrate_cancel``
|
|
Cancel the current VM migration.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_continue",
|
|
.args_type = "state:s",
|
|
.params = "state",
|
|
.help = "Continue migration from the given paused state",
|
|
.cmd = hmp_migrate_continue,
|
|
},
|
|
SRST
|
|
``migrate_continue`` *state*
|
|
Continue migration from the paused state *state*
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_incoming",
|
|
.args_type = "uri:s",
|
|
.params = "uri",
|
|
.help = "Continue an incoming migration from an -incoming defer",
|
|
.cmd = hmp_migrate_incoming,
|
|
},
|
|
|
|
SRST
|
|
``migrate_incoming`` *uri*
|
|
Continue an incoming migration using the *uri* (that has the same syntax
|
|
as the ``-incoming`` option).
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_recover",
|
|
.args_type = "uri:s",
|
|
.params = "uri",
|
|
.help = "Continue a paused incoming postcopy migration",
|
|
.cmd = hmp_migrate_recover,
|
|
},
|
|
|
|
SRST
|
|
``migrate_recover`` *uri*
|
|
Continue a paused incoming postcopy migration using the *uri*.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_pause",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "Pause an ongoing migration (postcopy-only)",
|
|
.cmd = hmp_migrate_pause,
|
|
},
|
|
|
|
SRST
|
|
``migrate_pause``
|
|
Pause an ongoing migration. Currently it only supports postcopy.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_set_capability",
|
|
.args_type = "capability:s,state:b",
|
|
.params = "capability state",
|
|
.help = "Enable/Disable the usage of a capability for migration",
|
|
.cmd = hmp_migrate_set_capability,
|
|
.command_completion = migrate_set_capability_completion,
|
|
},
|
|
|
|
SRST
|
|
``migrate_set_capability`` *capability* *state*
|
|
Enable/Disable the usage of a capability *capability* for migration.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_set_parameter",
|
|
.args_type = "parameter:s,value:s",
|
|
.params = "parameter value",
|
|
.help = "Set the parameter for migration",
|
|
.cmd = hmp_migrate_set_parameter,
|
|
.command_completion = migrate_set_parameter_completion,
|
|
},
|
|
|
|
SRST
|
|
``migrate_set_parameter`` *parameter* *value*
|
|
Set the parameter *parameter* for migration.
|
|
ERST
|
|
|
|
{
|
|
.name = "migrate_start_postcopy",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "Followup to a migration command to switch the migration"
|
|
" to postcopy mode. The postcopy-ram capability must "
|
|
"be set on both source and destination before the "
|
|
"original migration command .",
|
|
.cmd = hmp_migrate_start_postcopy,
|
|
},
|
|
|
|
SRST
|
|
``migrate_start_postcopy``
|
|
Switch in-progress migration to postcopy mode. Ignored after the end of
|
|
migration (or once already in postcopy).
|
|
ERST
|
|
|
|
#ifdef CONFIG_REPLICATION
|
|
{
|
|
.name = "x_colo_lost_heartbeat",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "Tell COLO that heartbeat is lost,\n\t\t\t"
|
|
"a failover or takeover is needed.",
|
|
.cmd = hmp_x_colo_lost_heartbeat,
|
|
},
|
|
#endif
|
|
|
|
SRST
|
|
``x_colo_lost_heartbeat``
|
|
Tell COLO that heartbeat is lost, a failover or takeover is needed.
|
|
ERST
|
|
|
|
{
|
|
.name = "client_migrate_info",
|
|
.args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
|
|
.params = "protocol hostname port tls-port cert-subject",
|
|
.help = "set migration information for remote display",
|
|
.cmd = hmp_client_migrate_info,
|
|
},
|
|
|
|
SRST
|
|
``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
|
|
Set migration information for remote display. This makes the server
|
|
ask the client to automatically reconnect using the new parameters
|
|
once migration finished successfully. Only implemented for SPICE.
|
|
ERST
|
|
|
|
{
|
|
.name = "dump-guest-memory",
|
|
.args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
|
|
.params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
|
|
.help = "dump guest memory into file 'filename'.\n\t\t\t"
|
|
"-p: do paging to get guest's memory mapping.\n\t\t\t"
|
|
"-d: return immediately (do not wait for completion).\n\t\t\t"
|
|
"-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
|
|
"-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
|
|
"-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
|
|
"-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
|
|
" for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
|
|
"begin: the starting physical address.\n\t\t\t"
|
|
"length: the memory size, in bytes.",
|
|
.cmd = hmp_dump_guest_memory,
|
|
},
|
|
|
|
SRST
|
|
``dump-guest-memory [-p]`` *filename* *begin* *length*
|
|
\
|
|
``dump-guest-memory [-z|-l|-s|-w]`` *filename*
|
|
Dump guest memory to *protocol*. The file can be processed with crash or
|
|
gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
|
|
|
|
``-p``
|
|
do paging to get guest's memory mapping.
|
|
``-z``
|
|
dump in kdump-compressed format, with zlib compression.
|
|
``-l``
|
|
dump in kdump-compressed format, with lzo compression.
|
|
``-s``
|
|
dump in kdump-compressed format, with snappy compression.
|
|
``-w``
|
|
dump in Windows crashdump format (can be used instead of ELF-dump converting),
|
|
for Windows x64 guests with vmcoreinfo driver only
|
|
*filename*
|
|
dump file name.
|
|
*begin*
|
|
the starting physical address. It's optional, and should be
|
|
specified together with *length*.
|
|
*length*
|
|
the memory size, in bytes. It's optional, and should be specified
|
|
together with *begin*.
|
|
|
|
ERST
|
|
|
|
#if defined(TARGET_S390X)
|
|
{
|
|
.name = "dump-skeys",
|
|
.args_type = "filename:F",
|
|
.params = "",
|
|
.help = "Save guest storage keys into file 'filename'.\n",
|
|
.cmd = hmp_dump_skeys,
|
|
},
|
|
#endif
|
|
|
|
SRST
|
|
``dump-skeys`` *filename*
|
|
Save guest storage keys to a file.
|
|
ERST
|
|
|
|
#if defined(TARGET_S390X)
|
|
{
|
|
.name = "migration_mode",
|
|
.args_type = "mode:i",
|
|
.params = "mode",
|
|
.help = "Enables or disables migration mode\n",
|
|
.cmd = hmp_migrationmode,
|
|
},
|
|
#endif
|
|
|
|
SRST
|
|
``migration_mode`` *mode*
|
|
Enables or disables migration mode.
|
|
ERST
|
|
|
|
{
|
|
.name = "snapshot_blkdev",
|
|
.args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
|
|
.params = "[-n] device [new-image-file] [format]",
|
|
.help = "initiates a live snapshot\n\t\t\t"
|
|
"of device. If a new image file is specified, the\n\t\t\t"
|
|
"new image file will become the new root image.\n\t\t\t"
|
|
"If format is specified, the snapshot file will\n\t\t\t"
|
|
"be created in that format.\n\t\t\t"
|
|
"The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
|
|
"to reuse the image found in new-image-file, instead of\n\t\t\t"
|
|
"recreating it from scratch.",
|
|
.cmd = hmp_snapshot_blkdev,
|
|
},
|
|
|
|
SRST
|
|
``snapshot_blkdev``
|
|
Snapshot device, using snapshot file as target if provided
|
|
ERST
|
|
|
|
{
|
|
.name = "snapshot_blkdev_internal",
|
|
.args_type = "device:B,name:s",
|
|
.params = "device name",
|
|
.help = "take an internal snapshot of device.\n\t\t\t"
|
|
"The format of the image used by device must\n\t\t\t"
|
|
"support it, such as qcow2.\n\t\t\t",
|
|
.cmd = hmp_snapshot_blkdev_internal,
|
|
},
|
|
|
|
SRST
|
|
``snapshot_blkdev_internal``
|
|
Take an internal snapshot on device if it support
|
|
ERST
|
|
|
|
{
|
|
.name = "snapshot_delete_blkdev_internal",
|
|
.args_type = "device:B,name:s,id:s?",
|
|
.params = "device name [id]",
|
|
.help = "delete an internal snapshot of device.\n\t\t\t"
|
|
"If id is specified, qemu will try delete\n\t\t\t"
|
|
"the snapshot matching both id and name.\n\t\t\t"
|
|
"The format of the image used by device must\n\t\t\t"
|
|
"support it, such as qcow2.\n\t\t\t",
|
|
.cmd = hmp_snapshot_delete_blkdev_internal,
|
|
},
|
|
|
|
SRST
|
|
``snapshot_delete_blkdev_internal``
|
|
Delete an internal snapshot on device if it support
|
|
ERST
|
|
|
|
{
|
|
.name = "drive_mirror",
|
|
.args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
|
|
.params = "[-n] [-f] device target [format]",
|
|
.help = "initiates live storage\n\t\t\t"
|
|
"migration for a device. The device's contents are\n\t\t\t"
|
|
"copied to the new image file, including data that\n\t\t\t"
|
|
"is written after the command is started.\n\t\t\t"
|
|
"The -n flag requests QEMU to reuse the image found\n\t\t\t"
|
|
"in new-image-file, instead of recreating it from scratch.\n\t\t\t"
|
|
"The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
|
|
"so that the result does not need a backing file.\n\t\t\t",
|
|
.cmd = hmp_drive_mirror,
|
|
},
|
|
SRST
|
|
``drive_mirror``
|
|
Start mirroring a block device's writes to a new destination,
|
|
using the specified target.
|
|
ERST
|
|
|
|
{
|
|
.name = "drive_backup",
|
|
.args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
|
|
.params = "[-n] [-f] [-c] device target [format]",
|
|
.help = "initiates a point-in-time\n\t\t\t"
|
|
"copy for a device. The device's contents are\n\t\t\t"
|
|
"copied to the new image file, excluding data that\n\t\t\t"
|
|
"is written after the command is started.\n\t\t\t"
|
|
"The -n flag requests QEMU to reuse the image found\n\t\t\t"
|
|
"in new-image-file, instead of recreating it from scratch.\n\t\t\t"
|
|
"The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
|
|
"so that the result does not need a backing file.\n\t\t\t"
|
|
"The -c flag requests QEMU to compress backup data\n\t\t\t"
|
|
"(if the target format supports it).\n\t\t\t",
|
|
.cmd = hmp_drive_backup,
|
|
},
|
|
SRST
|
|
``drive_backup``
|
|
Start a point-in-time copy of a block device to a specified target.
|
|
ERST
|
|
|
|
{
|
|
.name = "drive_add",
|
|
.args_type = "node:-n,pci_addr:s,opts:s",
|
|
.params = "[-n] [[<domain>:]<bus>:]<slot>\n"
|
|
"[file=file][,if=type][,bus=n]\n"
|
|
"[,unit=m][,media=d][,index=i]\n"
|
|
"[,snapshot=on|off][,cache=on|off]\n"
|
|
"[,readonly=on|off][,copy-on-read=on|off]",
|
|
.help = "add drive to PCI storage controller",
|
|
.cmd = hmp_drive_add,
|
|
},
|
|
|
|
SRST
|
|
``drive_add``
|
|
Add drive to PCI storage controller.
|
|
ERST
|
|
|
|
{
|
|
.name = "pcie_aer_inject_error",
|
|
.args_type = "advisory_non_fatal:-a,correctable:-c,"
|
|
"id:s,error_status:s,"
|
|
"header0:i?,header1:i?,header2:i?,header3:i?,"
|
|
"prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
|
|
.params = "[-a] [-c] id "
|
|
"<error_status> [<tlp header> [<tlp header prefix>]]",
|
|
.help = "inject pcie aer error\n\t\t\t"
|
|
" -a for advisory non fatal error\n\t\t\t"
|
|
" -c for correctable error\n\t\t\t"
|
|
"<id> = qdev device id\n\t\t\t"
|
|
"<error_status> = error string or 32bit\n\t\t\t"
|
|
"<tlp header> = 32bit x 4\n\t\t\t"
|
|
"<tlp header prefix> = 32bit x 4",
|
|
.cmd = hmp_pcie_aer_inject_error,
|
|
},
|
|
|
|
SRST
|
|
``pcie_aer_inject_error``
|
|
Inject PCIe AER error
|
|
ERST
|
|
|
|
{
|
|
.name = "netdev_add",
|
|
.args_type = "netdev:O",
|
|
.params = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
|
|
#ifdef CONFIG_VMNET
|
|
"|vmnet-host|vmnet-shared|vmnet-bridged"
|
|
#endif
|
|
"],id=str[,prop=value][,...]",
|
|
.help = "add host network device",
|
|
.cmd = hmp_netdev_add,
|
|
.command_completion = netdev_add_completion,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``netdev_add``
|
|
Add host network device.
|
|
ERST
|
|
|
|
{
|
|
.name = "netdev_del",
|
|
.args_type = "id:s",
|
|
.params = "id",
|
|
.help = "remove host network device",
|
|
.cmd = hmp_netdev_del,
|
|
.command_completion = netdev_del_completion,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``netdev_del``
|
|
Remove host network device.
|
|
ERST
|
|
|
|
{
|
|
.name = "object_add",
|
|
.args_type = "object:S",
|
|
.params = "[qom-type=]type,id=str[,prop=value][,...]",
|
|
.help = "create QOM object",
|
|
.cmd = hmp_object_add,
|
|
.command_completion = object_add_completion,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``object_add``
|
|
Create QOM object.
|
|
ERST
|
|
|
|
{
|
|
.name = "object_del",
|
|
.args_type = "id:s",
|
|
.params = "id",
|
|
.help = "destroy QOM object",
|
|
.cmd = hmp_object_del,
|
|
.command_completion = object_del_completion,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``object_del``
|
|
Destroy QOM object.
|
|
ERST
|
|
|
|
#ifdef CONFIG_SLIRP
|
|
{
|
|
.name = "hostfwd_add",
|
|
.args_type = "arg1:s,arg2:s?",
|
|
.params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
|
|
.help = "redirect TCP or UDP connections from host to guest (requires -net user)",
|
|
.cmd = hmp_hostfwd_add,
|
|
},
|
|
#endif
|
|
SRST
|
|
``hostfwd_add``
|
|
Redirect TCP or UDP connections from host to guest (requires -net user).
|
|
ERST
|
|
|
|
#ifdef CONFIG_SLIRP
|
|
{
|
|
.name = "hostfwd_remove",
|
|
.args_type = "arg1:s,arg2:s?",
|
|
.params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
|
|
.help = "remove host-to-guest TCP or UDP redirection",
|
|
.cmd = hmp_hostfwd_remove,
|
|
},
|
|
|
|
#endif
|
|
SRST
|
|
``hostfwd_remove``
|
|
Remove host-to-guest TCP or UDP redirection.
|
|
ERST
|
|
|
|
{
|
|
.name = "balloon",
|
|
.args_type = "value:M",
|
|
.params = "target",
|
|
.help = "request VM to change its memory allocation (in MB)",
|
|
.cmd = hmp_balloon,
|
|
},
|
|
|
|
SRST
|
|
``balloon`` *value*
|
|
Request VM to change its memory allocation to *value* (in MB).
|
|
ERST
|
|
|
|
{
|
|
.name = "set_link",
|
|
.args_type = "name:s,up:b",
|
|
.params = "name on|off",
|
|
.help = "change the link status of a network adapter",
|
|
.cmd = hmp_set_link,
|
|
.command_completion = set_link_completion,
|
|
},
|
|
|
|
SRST
|
|
``set_link`` *name* ``[on|off]``
|
|
Switch link *name* on (i.e. up) or off (i.e. down).
|
|
ERST
|
|
|
|
{
|
|
.name = "watchdog_action",
|
|
.args_type = "action:s",
|
|
.params = "[reset|shutdown|poweroff|pause|debug|none]",
|
|
.help = "change watchdog action",
|
|
.cmd = hmp_watchdog_action,
|
|
.command_completion = watchdog_action_completion,
|
|
},
|
|
|
|
SRST
|
|
``watchdog_action``
|
|
Change watchdog action.
|
|
ERST
|
|
|
|
{
|
|
.name = "nbd_server_start",
|
|
.args_type = "all:-a,writable:-w,uri:s",
|
|
.params = "nbd_server_start [-a] [-w] host:port",
|
|
.help = "serve block devices on the given host and port",
|
|
.cmd = hmp_nbd_server_start,
|
|
.flags = "p",
|
|
},
|
|
SRST
|
|
``nbd_server_start`` *host*:*port*
|
|
Start an NBD server on the given host and/or port. If the ``-a``
|
|
option is included, all of the virtual machine's block devices that
|
|
have an inserted media on them are automatically exported; in this case,
|
|
the ``-w`` option makes the devices writable too.
|
|
ERST
|
|
|
|
{
|
|
.name = "nbd_server_add",
|
|
.args_type = "writable:-w,device:B,name:s?",
|
|
.params = "nbd_server_add [-w] device [name]",
|
|
.help = "export a block device via NBD",
|
|
.cmd = hmp_nbd_server_add,
|
|
.flags = "p",
|
|
},
|
|
SRST
|
|
``nbd_server_add`` *device* [ *name* ]
|
|
Export a block device through QEMU's NBD server, which must be started
|
|
beforehand with ``nbd_server_start``. The ``-w`` option makes the
|
|
exported device writable too. The export name is controlled by *name*,
|
|
defaulting to *device*.
|
|
ERST
|
|
|
|
{
|
|
.name = "nbd_server_remove",
|
|
.args_type = "force:-f,name:s",
|
|
.params = "nbd_server_remove [-f] name",
|
|
.help = "remove an export previously exposed via NBD",
|
|
.cmd = hmp_nbd_server_remove,
|
|
.flags = "p",
|
|
},
|
|
SRST
|
|
``nbd_server_remove [-f]`` *name*
|
|
Stop exporting a block device through QEMU's NBD server, which was
|
|
previously started with ``nbd_server_add``. The ``-f``
|
|
option forces the server to drop the export immediately even if
|
|
clients are connected; otherwise the command fails unless there are no
|
|
clients.
|
|
ERST
|
|
|
|
{
|
|
.name = "nbd_server_stop",
|
|
.args_type = "",
|
|
.params = "nbd_server_stop",
|
|
.help = "stop serving block devices using the NBD protocol",
|
|
.cmd = hmp_nbd_server_stop,
|
|
.flags = "p",
|
|
},
|
|
SRST
|
|
``nbd_server_stop``
|
|
Stop the QEMU embedded NBD server.
|
|
ERST
|
|
|
|
|
|
#if defined(TARGET_I386)
|
|
|
|
{
|
|
.name = "mce",
|
|
.args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
|
|
.params = "[-b] cpu bank status mcgstatus addr misc",
|
|
.help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
|
|
.cmd = hmp_mce,
|
|
},
|
|
|
|
#endif
|
|
SRST
|
|
``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
|
|
Inject an MCE on the given CPU (x86 only).
|
|
ERST
|
|
|
|
#ifdef CONFIG_POSIX
|
|
{
|
|
.name = "getfd",
|
|
.args_type = "fdname:s",
|
|
.params = "getfd name",
|
|
.help = "receive a file descriptor via SCM rights and assign it a name",
|
|
.cmd = hmp_getfd,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``getfd`` *fdname*
|
|
If a file descriptor is passed alongside this command using the SCM_RIGHTS
|
|
mechanism on unix sockets, it is stored using the name *fdname* for
|
|
later use by other monitor commands.
|
|
ERST
|
|
#endif
|
|
|
|
{
|
|
.name = "closefd",
|
|
.args_type = "fdname:s",
|
|
.params = "closefd name",
|
|
.help = "close a file descriptor previously passed via SCM rights",
|
|
.cmd = hmp_closefd,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``closefd`` *fdname*
|
|
Close the file descriptor previously assigned to *fdname* using the
|
|
``getfd`` command. This is only needed if the file descriptor was never
|
|
used by another monitor command.
|
|
ERST
|
|
|
|
{
|
|
.name = "block_set_io_throttle",
|
|
.args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
|
|
.params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
|
|
.help = "change I/O throttle limits for a block drive",
|
|
.cmd = hmp_block_set_io_throttle,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
|
|
Change I/O throttle limits for a block drive to
|
|
*bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
|
|
*device* can be a block device name, a qdev ID or a QOM path.
|
|
ERST
|
|
|
|
{
|
|
.name = "set_password",
|
|
.args_type = "protocol:s,password:s,display:-ds,connected:s?",
|
|
.params = "protocol password [-d display] [action-if-connected]",
|
|
.help = "set spice/vnc password",
|
|
.cmd = hmp_set_password,
|
|
},
|
|
|
|
SRST
|
|
``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
|
|
Change spice/vnc password. *display* can be used with 'vnc' to specify
|
|
which display to set the password on. *action-if-connected* specifies
|
|
what should happen in case a connection is established: *fail* makes
|
|
the password change fail. *disconnect* changes the password and
|
|
disconnects the client. *keep* changes the password and keeps the
|
|
connection up. *keep* is the default.
|
|
ERST
|
|
|
|
{
|
|
.name = "expire_password",
|
|
.args_type = "protocol:s,time:s,display:-ds",
|
|
.params = "protocol time [-d display]",
|
|
.help = "set spice/vnc password expire-time",
|
|
.cmd = hmp_expire_password,
|
|
},
|
|
|
|
SRST
|
|
``expire_password [ vnc | spice ] expire-time [ -d display ]``
|
|
Specify when a password for spice/vnc becomes invalid.
|
|
*display* behaves the same as in ``set_password``.
|
|
*expire-time* accepts:
|
|
|
|
``now``
|
|
Invalidate password instantly.
|
|
``never``
|
|
Password stays valid forever.
|
|
``+``\ *nsec*
|
|
Password stays valid for *nsec* seconds starting now.
|
|
*nsec*
|
|
Password is invalidated at the given time. *nsec* are the seconds
|
|
passed since 1970, i.e. unix epoch.
|
|
|
|
ERST
|
|
|
|
{
|
|
.name = "chardev-add",
|
|
.args_type = "args:s",
|
|
.params = "args",
|
|
.help = "add chardev",
|
|
.cmd = hmp_chardev_add,
|
|
.command_completion = chardev_add_completion,
|
|
},
|
|
|
|
SRST
|
|
``chardev-add`` *args*
|
|
chardev-add accepts the same parameters as the -chardev command line switch.
|
|
ERST
|
|
|
|
{
|
|
.name = "chardev-change",
|
|
.args_type = "id:s,args:s",
|
|
.params = "id args",
|
|
.help = "change chardev",
|
|
.cmd = hmp_chardev_change,
|
|
},
|
|
|
|
SRST
|
|
``chardev-change`` *args*
|
|
chardev-change accepts existing chardev *id* and then the same arguments
|
|
as the -chardev command line switch (except for "id").
|
|
ERST
|
|
|
|
{
|
|
.name = "chardev-remove",
|
|
.args_type = "id:s",
|
|
.params = "id",
|
|
.help = "remove chardev",
|
|
.cmd = hmp_chardev_remove,
|
|
.command_completion = chardev_remove_completion,
|
|
},
|
|
|
|
SRST
|
|
``chardev-remove`` *id*
|
|
Removes the chardev *id*.
|
|
ERST
|
|
|
|
{
|
|
.name = "chardev-send-break",
|
|
.args_type = "id:s",
|
|
.params = "id",
|
|
.help = "send a break on chardev",
|
|
.cmd = hmp_chardev_send_break,
|
|
.command_completion = chardev_remove_completion,
|
|
},
|
|
|
|
SRST
|
|
``chardev-send-break`` *id*
|
|
Send a break on the chardev *id*.
|
|
ERST
|
|
|
|
{
|
|
.name = "qemu-io",
|
|
.args_type = "qdev:-d,device:B,command:s",
|
|
.params = "[-d] [device] \"[command]\"",
|
|
.help = "run a qemu-io command on a block device\n\t\t\t"
|
|
"-d: [device] is a device ID rather than a "
|
|
"drive ID or node name",
|
|
.cmd = hmp_qemu_io,
|
|
},
|
|
|
|
SRST
|
|
``qemu-io`` *device* *command*
|
|
Executes a qemu-io command on the given block device.
|
|
ERST
|
|
|
|
{
|
|
.name = "qom-list",
|
|
.args_type = "path:s?",
|
|
.params = "path",
|
|
.help = "list QOM properties",
|
|
.cmd = hmp_qom_list,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``qom-list`` [*path*]
|
|
Print QOM properties of object at location *path*
|
|
ERST
|
|
|
|
{
|
|
.name = "qom-get",
|
|
.args_type = "path:s,property:s",
|
|
.params = "path property",
|
|
.help = "print QOM property",
|
|
.cmd = hmp_qom_get,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``qom-get`` *path* *property*
|
|
Print QOM property *property* of object at location *path*
|
|
ERST
|
|
|
|
{
|
|
.name = "qom-set",
|
|
.args_type = "json:-j,path:s,property:s,value:S",
|
|
.params = "[-j] path property value",
|
|
.help = "set QOM property.\n\t\t\t"
|
|
"-j: the value is specified in json format.",
|
|
.cmd = hmp_qom_set,
|
|
.flags = "p",
|
|
},
|
|
|
|
SRST
|
|
``qom-set`` *path* *property* *value*
|
|
Set QOM property *property* of object at location *path* to value *value*
|
|
ERST
|
|
|
|
{
|
|
.name = "replay_break",
|
|
.args_type = "icount:l",
|
|
.params = "icount",
|
|
.help = "set breakpoint at the specified instruction count",
|
|
.cmd = hmp_replay_break,
|
|
},
|
|
|
|
SRST
|
|
``replay_break`` *icount*
|
|
Set replay breakpoint at instruction count *icount*.
|
|
Execution stops when the specified instruction is reached.
|
|
There can be at most one breakpoint. When breakpoint is set, any prior
|
|
one is removed. The breakpoint may be set only in replay mode and only
|
|
"in the future", i.e. at instruction counts greater than the current one.
|
|
The current instruction count can be observed with ``info replay``.
|
|
ERST
|
|
|
|
{
|
|
.name = "replay_delete_break",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "remove replay breakpoint",
|
|
.cmd = hmp_replay_delete_break,
|
|
},
|
|
|
|
SRST
|
|
``replay_delete_break``
|
|
Remove replay breakpoint which was previously set with ``replay_break``.
|
|
The command is ignored when there are no replay breakpoints.
|
|
ERST
|
|
|
|
{
|
|
.name = "replay_seek",
|
|
.args_type = "icount:l",
|
|
.params = "icount",
|
|
.help = "replay execution to the specified instruction count",
|
|
.cmd = hmp_replay_seek,
|
|
},
|
|
|
|
SRST
|
|
``replay_seek`` *icount*
|
|
Automatically proceed to the instruction count *icount*, when
|
|
replaying the execution. The command automatically loads nearest
|
|
snapshot and replays the execution to find the desired instruction.
|
|
When there is no preceding snapshot or the execution is not replayed,
|
|
then the command fails.
|
|
*icount* for the reference may be observed with ``info replay`` command.
|
|
ERST
|
|
|
|
{
|
|
.name = "calc_dirty_rate",
|
|
.args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
|
|
.params = "[-r] [-b] second [sample_pages_per_GB]",
|
|
.help = "start a round of guest dirty rate measurement (using -r to"
|
|
"\n\t\t\t specify dirty ring as the method of calculation and"
|
|
"\n\t\t\t -b to specify dirty bitmap as method of calculation)",
|
|
.cmd = hmp_calc_dirty_rate,
|
|
},
|
|
|
|
SRST
|
|
``calc_dirty_rate`` *second*
|
|
Start a round of dirty rate measurement with the period specified in *second*.
|
|
The result of the dirty rate measurement may be observed with ``info
|
|
dirty_rate`` command.
|
|
ERST
|
|
|
|
{
|
|
.name = "set_vcpu_dirty_limit",
|
|
.args_type = "dirty_rate:l,cpu_index:l?",
|
|
.params = "dirty_rate [cpu_index]",
|
|
.help = "set dirty page rate limit, use cpu_index to set limit"
|
|
"\n\t\t\t\t\t on a specified virtual cpu",
|
|
.cmd = hmp_set_vcpu_dirty_limit,
|
|
},
|
|
|
|
SRST
|
|
``set_vcpu_dirty_limit``
|
|
Set dirty page rate limit on virtual CPU, the information about all the
|
|
virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
|
|
command.
|
|
ERST
|
|
|
|
{
|
|
.name = "cancel_vcpu_dirty_limit",
|
|
.args_type = "cpu_index:l?",
|
|
.params = "[cpu_index]",
|
|
.help = "cancel dirty page rate limit, use cpu_index to cancel"
|
|
"\n\t\t\t\t\t limit on a specified virtual cpu",
|
|
.cmd = hmp_cancel_vcpu_dirty_limit,
|
|
},
|
|
|
|
SRST
|
|
``cancel_vcpu_dirty_limit``
|
|
Cancel dirty page rate limit on virtual CPU, the information about all the
|
|
virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
|
|
command.
|
|
ERST
|
|
|
|
{
|
|
.name = "info",
|
|
.args_type = "item:s?",
|
|
.params = "[subcommand]",
|
|
.help = "show various information about the system state",
|
|
.cmd = hmp_info_help,
|
|
.sub_table = hmp_info_cmds,
|
|
.flags = "p",
|
|
},
|
|
|
|
#if defined(CONFIG_FDT)
|
|
{
|
|
.name = "dumpdtb",
|
|
.args_type = "filename:F",
|
|
.params = "filename",
|
|
.help = "dump the FDT in dtb format to 'filename'",
|
|
.cmd = hmp_dumpdtb,
|
|
},
|
|
|
|
SRST
|
|
``dumpdtb`` *filename*
|
|
Dump the FDT in dtb format to *filename*.
|
|
ERST
|
|
#endif
|
|
|
|
#if defined(CONFIG_XEN_EMU)
|
|
{
|
|
.name = "xen-event-inject",
|
|
.args_type = "port:i",
|
|
.params = "port",
|
|
.help = "inject event channel",
|
|
.cmd = hmp_xen_event_inject,
|
|
},
|
|
|
|
SRST
|
|
``xen-event-inject`` *port*
|
|
Notify guest via event channel on port *port*.
|
|
ERST
|
|
|
|
|
|
{
|
|
.name = "xen-event-list",
|
|
.args_type = "",
|
|
.params = "",
|
|
.help = "list event channel state",
|
|
.cmd = hmp_xen_event_list,
|
|
},
|
|
|
|
SRST
|
|
``xen-event-list``
|
|
List event channels in the guest
|
|
ERST
|
|
#endif
|