hmp-commands.hx 43.4 KB
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HXCOMM Use DEFHEADING() to define headings in both help text and texi
HXCOMM Text between STEXI and ETEXI are copied to texi version and
HXCOMM discarded from C version
HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
HXCOMM monitor commands
HXCOMM HXCOMM can be used for comments, discarded from both texi and C

STEXI
@table @option
ETEXI

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    {
        .name       = "help|?",
        .args_type  = "name:s?",
        .params     = "[cmd]",
        .help       = "show the help",
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        .mhandler.cmd = do_help_cmd,
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    },

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STEXI
@item help or ? [@var{cmd}]
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@findex help
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Show the help for all commands or just for command @var{cmd}.
ETEXI

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    {
        .name       = "commit",
        .args_type  = "device:B",
        .params     = "device|all",
        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
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        .mhandler.cmd = do_commit,
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    },

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STEXI
@item commit
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@findex commit
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Commit changes to the disk images (if -snapshot is used) or backing files.
ETEXI

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    {
        .name       = "q|quit",
        .args_type  = "",
        .params     = "",
        .help       = "quit the emulator",
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        .user_print = monitor_user_noop,
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        .mhandler.cmd = hmp_quit,
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    },

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STEXI
@item q or quit
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@findex quit
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Quit the emulator.
ETEXI

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    {
        .name       = "block_resize",
        .args_type  = "device:B,size:o",
        .params     = "device size",
        .help       = "resize a block image",
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        .mhandler.cmd = hmp_block_resize,
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    },

STEXI
@item block_resize
@findex block_resize
Resize a block image while a guest is running.  Usually requires guest
action to see the updated size.  Resize to a lower size is supported,
but should be used with extreme caution.  Note that this command only
resizes image files, it can not resize block devices like LVM volumes.
ETEXI

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    {
        .name       = "block_stream",
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        .args_type  = "device:B,speed:o?,base:s?",
        .params     = "device [speed [base]]",
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        .help       = "copy data from a backing file into a block device",
        .mhandler.cmd = hmp_block_stream,
    },

STEXI
@item block_stream
@findex block_stream
Copy data from a backing file into a block device.
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ETEXI

    {
        .name       = "block_job_set_speed",
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        .args_type  = "device:B,speed:o",
        .params     = "device speed",
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        .help       = "set maximum speed for a background block operation",
        .mhandler.cmd = hmp_block_job_set_speed,
    },

STEXI
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@item block_job_set_speed
@findex block_job_set_speed
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Set maximum speed for a background block operation.
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ETEXI

    {
        .name       = "block_job_cancel",
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        .args_type  = "force:-f,device:B",
        .params     = "[-f] device",
        .help       = "stop an active background block operation (use -f"
                      "\n\t\t\t if the operation is currently paused)",
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        .mhandler.cmd = hmp_block_job_cancel,
    },

STEXI
@item block_job_cancel
@findex block_job_cancel
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Stop an active background block operation (streaming, mirroring).
ETEXI

    {
        .name       = "block_job_complete",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "stop an active background block operation",
        .mhandler.cmd = hmp_block_job_complete,
    },

STEXI
@item block_job_complete
@findex block_job_complete
Manually trigger completion of an active background block operation.
For mirroring, this will switch the device to the destination path.
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ETEXI

    {
        .name       = "block_job_pause",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "pause an active background block operation",
        .mhandler.cmd = hmp_block_job_pause,
    },

STEXI
@item block_job_pause
@findex block_job_pause
Pause an active block streaming operation.
ETEXI

    {
        .name       = "block_job_resume",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "resume a paused background block operation",
        .mhandler.cmd = hmp_block_job_resume,
    },

STEXI
@item block_job_resume
@findex block_job_resume
Resume a paused block streaming operation.
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ETEXI
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    {
        .name       = "eject",
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        .args_type  = "force:-f,device:B",
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        .params     = "[-f] device",
        .help       = "eject a removable medium (use -f to force it)",
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        .mhandler.cmd = hmp_eject,
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    },

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STEXI
@item eject [-f] @var{device}
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@findex eject
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Eject a removable medium (use -f to force it).
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ETEXI

    {
        .name       = "drive_del",
        .args_type  = "id:s",
        .params     = "device",
        .help       = "remove host block device",
        .user_print = monitor_user_noop,
        .mhandler.cmd_new = do_drive_del,
    },

STEXI
@item drive_del @var{device}
@findex drive_del
Remove host block device.  The result is that guest generated IO is no longer
submitted against the host device underlying the disk.  Once a drive has
been deleted, the QEMU Block layer returns -EIO which results in IO
errors in the guest for applications that are reading/writing to the device.
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ETEXI

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    {
        .name       = "change",
        .args_type  = "device:B,target:F,arg:s?",
        .params     = "device filename [format]",
        .help       = "change a removable medium, optional format",
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        .mhandler.cmd = hmp_change,
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    },

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STEXI
@item change @var{device} @var{setting}
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@findex change
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Change the configuration of a device.

@table @option
@item change @var{diskdevice} @var{filename} [@var{format}]
Change the medium for a removable disk device to point to @var{filename}. eg

@example
(qemu) change ide1-cd0 /path/to/some.iso
@end example

@var{format} is optional.

@item change vnc @var{display},@var{options}
Change the configuration of the VNC server. The valid syntax for @var{display}
and @var{options} are described at @ref{sec_invocation}. eg

@example
(qemu) change vnc localhost:1
@end example

@item change vnc password [@var{password}]

Change the password associated with the VNC server. If the new password is not
supplied, the monitor will prompt for it to be entered. VNC passwords are only
significant up to 8 letters. eg

@example
(qemu) change vnc password
Password: ********
@end example

@end table
ETEXI

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    {
        .name       = "screendump",
        .args_type  = "filename:F",
        .params     = "filename",
        .help       = "save screen into PPM image 'filename'",
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        .mhandler.cmd = hmp_screen_dump,
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    },

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STEXI
@item screendump @var{filename}
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@findex screendump
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Save screen into PPM image @var{filename}.
ETEXI

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    {
        .name       = "logfile",
        .args_type  = "filename:F",
        .params     = "filename",
        .help       = "output logs to 'filename'",
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        .mhandler.cmd = do_logfile,
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    },

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STEXI
@item logfile @var{filename}
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@findex logfile
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Output logs to @var{filename}.
ETEXI

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    {
        .name       = "trace-event",
        .args_type  = "name:s,option:b",
        .params     = "name on|off",
        .help       = "changes status of a specific trace event",
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        .mhandler.cmd = do_trace_event_set_state,
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    },

STEXI
@item trace-event
@findex trace-event
changes status of a trace event
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ETEXI

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#if defined(CONFIG_TRACE_SIMPLE)
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    {
        .name       = "trace-file",
        .args_type  = "op:s?,arg:F?",
        .params     = "on|off|flush|set [arg]",
        .help       = "open, close, or flush trace file, or set a new file name",
        .mhandler.cmd = do_trace_file,
    },

STEXI
@item trace-file on|off|flush
@findex trace-file
Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
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ETEXI
#endif

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    {
        .name       = "log",
        .args_type  = "items:s",
        .params     = "item1[,...]",
        .help       = "activate logging of the specified items to '/tmp/qemu.log'",
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        .mhandler.cmd = do_log,
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    },

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STEXI
@item log @var{item1}[,...]
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@findex log
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Activate logging of the specified items to @file{/tmp/qemu.log}.
ETEXI

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    {
        .name       = "savevm",
        .args_type  = "name:s?",
        .params     = "[tag|id]",
        .help       = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
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        .mhandler.cmd = do_savevm,
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    },

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STEXI
@item savevm [@var{tag}|@var{id}]
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@findex savevm
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Create a snapshot of the whole virtual machine. If @var{tag} is
provided, it is used as human readable identifier. If there is already
a snapshot with the same tag or ID, it is replaced. More info at
@ref{vm_snapshots}.
ETEXI

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    {
        .name       = "loadvm",
        .args_type  = "name:s",
        .params     = "tag|id",
        .help       = "restore a VM snapshot from its tag or id",
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        .mhandler.cmd = do_loadvm,
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    },

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STEXI
@item loadvm @var{tag}|@var{id}
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@findex loadvm
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Set the whole virtual machine to the snapshot identified by the tag
@var{tag} or the unique snapshot ID @var{id}.
ETEXI

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    {
        .name       = "delvm",
        .args_type  = "name:s",
        .params     = "tag|id",
        .help       = "delete a VM snapshot from its tag or id",
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        .mhandler.cmd = do_delvm,
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    },

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STEXI
@item delvm @var{tag}|@var{id}
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@findex delvm
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Delete the snapshot identified by @var{tag} or @var{id}.
ETEXI

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    {
        .name       = "singlestep",
        .args_type  = "option:s?",
        .params     = "[on|off]",
        .help       = "run emulation in singlestep mode or switch to normal mode",
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        .mhandler.cmd = do_singlestep,
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    },

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STEXI
@item singlestep [off]
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@findex singlestep
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Run the emulation in single step mode.
If called with option off, the emulation returns to normal mode.
ETEXI

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    {
        .name       = "stop",
        .args_type  = "",
        .params     = "",
        .help       = "stop emulation",
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        .mhandler.cmd = hmp_stop,
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    },

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STEXI
@item stop
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@findex stop
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Stop emulation.
ETEXI

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    {
        .name       = "c|cont",
        .args_type  = "",
        .params     = "",
        .help       = "resume emulation",
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        .mhandler.cmd = hmp_cont,
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    },

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STEXI
@item c or cont
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@findex cont
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Resume emulation.
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ETEXI

    {
        .name       = "system_wakeup",
        .args_type  = "",
        .params     = "",
        .help       = "wakeup guest from suspend",
        .mhandler.cmd = hmp_system_wakeup,
    },

STEXI
@item system_wakeup
@findex system_wakeup
Wakeup guest from suspend.
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ETEXI

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    {
        .name       = "gdbserver",
        .args_type  = "device:s?",
        .params     = "[device]",
        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
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        .mhandler.cmd = do_gdbserver,
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    },

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STEXI
@item gdbserver [@var{port}]
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@findex gdbserver
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Start gdbserver session (default @var{port}=1234)
ETEXI

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    {
        .name       = "x",
        .args_type  = "fmt:/,addr:l",
        .params     = "/fmt addr",
        .help       = "virtual memory dump starting at 'addr'",
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        .mhandler.cmd = do_memory_dump,
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    },

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STEXI
@item x/fmt @var{addr}
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@findex x
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Virtual memory dump starting at @var{addr}.
ETEXI

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    {
        .name       = "xp",
        .args_type  = "fmt:/,addr:l",
        .params     = "/fmt addr",
        .help       = "physical memory dump starting at 'addr'",
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        .mhandler.cmd = do_physical_memory_dump,
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    },

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STEXI
@item xp /@var{fmt} @var{addr}
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@findex xp
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Physical memory dump starting at @var{addr}.

@var{fmt} is a format which tells the command how to format the
data. Its syntax is: @option{/@{count@}@{format@}@{size@}}

@table @var
@item count
is the number of items to be dumped.

@item format
can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
c (char) or i (asm instruction).

@item size
can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
@code{h} or @code{w} can be specified with the @code{i} format to
respectively select 16 or 32 bit code instruction size.

@end table

Examples:
@itemize
@item
Dump 10 instructions at the current instruction pointer:
@example
(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
@end example

@item
Dump 80 16 bit values at the start of the video memory.
@smallexample
(qemu) xp/80hx 0xb8000
0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
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
@end smallexample
@end itemize
ETEXI

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    {
        .name       = "p|print",
        .args_type  = "fmt:/,val:l",
        .params     = "/fmt expr",
        .help       = "print expression value (use $reg for CPU register access)",
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        .mhandler.cmd = do_print,
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    },

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STEXI
@item p or print/@var{fmt} @var{expr}
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@findex print
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Print expression value. Only the @var{format} part of @var{fmt} is
used.
ETEXI

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    {
        .name       = "i",
        .args_type  = "fmt:/,addr:i,index:i.",
        .params     = "/fmt addr",
        .help       = "I/O port read",
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        .mhandler.cmd = do_ioport_read,
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    },

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STEXI
Read I/O port.
ETEXI

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    {
        .name       = "o",
        .args_type  = "fmt:/,addr:i,val:i",
        .params     = "/fmt addr value",
        .help       = "I/O port write",
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        .mhandler.cmd = do_ioport_write,
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    },

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STEXI
Write to I/O port.
ETEXI
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    {
        .name       = "sendkey",
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        .args_type  = "keys:s,hold-time:i?",
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        .params     = "keys [hold_ms]",
        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
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        .mhandler.cmd = hmp_send_key,
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    },

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STEXI
@item sendkey @var{keys}
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@findex sendkey
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Send @var{keys} to the guest. @var{keys} could be the name of the
key or the raw value in hexadecimal format. Use @code{-} to press
several keys simultaneously. Example:
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@example
sendkey ctrl-alt-f1
@end example

This command is useful to send keys that your graphical user interface
intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
ETEXI

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    {
        .name       = "system_reset",
        .args_type  = "",
        .params     = "",
        .help       = "reset the system",
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        .mhandler.cmd = hmp_system_reset,
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    },

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STEXI
@item system_reset
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@findex system_reset
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Reset the system.
ETEXI

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    {
        .name       = "system_powerdown",
        .args_type  = "",
        .params     = "",
        .help       = "send system power down event",
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        .mhandler.cmd = hmp_system_powerdown,
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    },

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STEXI
@item system_powerdown
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@findex system_powerdown
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Power down the system (if supported).
ETEXI

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    {
        .name       = "sum",
        .args_type  = "start:i,size:i",
        .params     = "addr size",
        .help       = "compute the checksum of a memory region",
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        .mhandler.cmd = do_sum,
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    },

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STEXI
@item sum @var{addr} @var{size}
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@findex sum
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Compute the checksum of a memory region.
ETEXI

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    {
        .name       = "usb_add",
        .args_type  = "devname:s",
        .params     = "device",
        .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
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        .mhandler.cmd = do_usb_add,
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    },

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STEXI
@item usb_add @var{devname}
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@findex usb_add
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Add the USB device @var{devname}.  For details of available devices see
@ref{usb_devices}
ETEXI

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    {
        .name       = "usb_del",
        .args_type  = "devname:s",
        .params     = "device",
        .help       = "remove USB device 'bus.addr'",
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        .mhandler.cmd = do_usb_del,
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    },

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STEXI
@item usb_del @var{devname}
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@findex usb_del
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Remove the USB device @var{devname} from the QEMU virtual USB
hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
command @code{info usb} to see the devices you can remove.
ETEXI

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    {
        .name       = "device_add",
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        .args_type  = "device:O",
        .params     = "driver[,prop=value][,...]",
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        .help       = "add device, like -device on the command line",
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        .user_print = monitor_user_noop,
        .mhandler.cmd_new = do_device_add,
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    },

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STEXI
@item device_add @var{config}
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@findex device_add
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Add device.
ETEXI

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    {
        .name       = "device_del",
        .args_type  = "id:s",
        .params     = "device",
        .help       = "remove device",
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        .mhandler.cmd = hmp_device_del,
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    },

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STEXI
@item device_del @var{id}
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@findex device_del
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Remove device @var{id}.
ETEXI

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    {
        .name       = "cpu",
        .args_type  = "index:i",
        .params     = "index",
        .help       = "set the default CPU",
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        .mhandler.cmd = hmp_cpu,
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    },
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STEXI
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@item cpu @var{index}
@findex cpu
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Set the default CPU.
ETEXI

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    {
        .name       = "mouse_move",
        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
        .params     = "dx dy [dz]",
        .help       = "send mouse move events",
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        .mhandler.cmd = do_mouse_move,
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    },

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STEXI
@item mouse_move @var{dx} @var{dy} [@var{dz}]
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@findex mouse_move
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Move the active mouse to the specified coordinates @var{dx} @var{dy}
with optional scroll axis @var{dz}.
ETEXI

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    {
        .name       = "mouse_button",
        .args_type  = "button_state:i",
        .params     = "state",
        .help       = "change mouse button state (1=L, 2=M, 4=R)",
712
        .mhandler.cmd = do_mouse_button,
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    },

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STEXI
@item mouse_button @var{val}
717
@findex mouse_button
718 719 720
Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
ETEXI

721 722 723 724 725
    {
        .name       = "mouse_set",
        .args_type  = "index:i",
        .params     = "index",
        .help       = "set which mouse device receives events",
726
        .mhandler.cmd = do_mouse_set,
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    },

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STEXI
@item mouse_set @var{index}
731
@findex mouse_set
732 733 734 735 736 737 738 739
Set which mouse device receives events at given @var{index}, index
can be obtained with
@example
info mice
@end example
ETEXI

#ifdef HAS_AUDIO
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    {
        .name       = "wavcapture",
        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
        .params     = "path [frequency [bits [channels]]]",
        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
745
        .mhandler.cmd = do_wav_capture,
746
    },
747 748 749
#endif
STEXI
@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
750
@findex wavcapture
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Capture audio into @var{filename}. Using sample rate @var{frequency}
bits per sample @var{bits} and number of channels @var{channels}.

Defaults:
@itemize @minus
@item Sample rate = 44100 Hz - CD quality
@item Bits = 16
@item Number of channels = 2 - Stereo
@end itemize
ETEXI

#ifdef HAS_AUDIO
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    {
        .name       = "stopcapture",
        .args_type  = "n:i",
        .params     = "capture index",
        .help       = "stop capture",
768
        .mhandler.cmd = do_stop_capture,
769
    },
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#endif
STEXI
@item stopcapture @var{index}
773
@findex stopcapture
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Stop capture with a given @var{index}, index can be obtained with
@example
info capture
@end example
ETEXI

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    {
        .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'",
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        .mhandler.cmd = hmp_memsave,
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    },

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STEXI
@item memsave @var{addr} @var{size} @var{file}
790
@findex memsave
791 792 793
save to disk virtual memory dump starting at @var{addr} of size @var{size}.
ETEXI

794 795 796 797 798
    {
        .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'",
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        .mhandler.cmd = hmp_pmemsave,
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    },

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STEXI
@item pmemsave @var{addr} @var{size} @var{file}
804
@findex pmemsave
805 806 807
save to disk physical memory dump starting at @var{addr} of size @var{size}.
ETEXI

808 809 810 811 812
    {
        .name       = "boot_set",
        .args_type  = "bootdevice:s",
        .params     = "bootdevice",
        .help       = "define new values for the boot device list",
813
        .mhandler.cmd = do_boot_set,
814 815
    },

816 817
STEXI
@item boot_set @var{bootdevicelist}
818
@findex boot_set
819 820 821 822 823 824 825 826 827

Define new values for the boot device list. Those values will override
the values specified on the command line through the @code{-boot} option.

The values that can be specified here depend on the machine type, but are
the same that can be specified in the @code{-boot} command line option.
ETEXI

#if defined(TARGET_I386)
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    {
        .name       = "nmi",
830 831 832
        .args_type  = "",
        .params     = "",
        .help       = "inject an NMI on all guest's CPUs",
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        .mhandler.cmd = hmp_inject_nmi,
834
    },
835 836 837
#endif
STEXI
@item nmi @var{cpu}
838
@findex nmi
839 840 841
Inject an NMI on the given CPU (x86 only).
ETEXI

842 843
    {
        .name       = "migrate",
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        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
        .params     = "[-d] [-b] [-i] 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)",
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        .mhandler.cmd = hmp_migrate,
852 853
    },

854

855
STEXI
856
@item migrate [-d] [-b] [-i] @var{uri}
857
@findex migrate
858
Migrate to @var{uri} (using -d to not wait for completion).
859 860
	-b for migration with full copy of disk
	-i for migration with incremental copy of disk (base image is shared)
861 862
ETEXI

863 864 865 866 867
    {
        .name       = "migrate_cancel",
        .args_type  = "",
        .params     = "",
        .help       = "cancel the current VM migration",
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        .mhandler.cmd = hmp_migrate_cancel,
869 870
    },

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STEXI
@item migrate_cancel
873
@findex migrate_cancel
874
Cancel the current VM migration.
875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894

ETEXI

    {
        .name       = "migrate_set_cache_size",
        .args_type  = "value:o",
        .params     = "value",
        .help       = "set cache size (in bytes) for XBZRLE migrations,"
                      "the cache size will be rounded down to the nearest "
                      "power of 2.\n"
                      "The cache size affects the number of cache misses."
                      "In case of a high cache miss ratio you need to increase"
                      " the cache size",
        .mhandler.cmd = hmp_migrate_set_cache_size,
    },

STEXI
@item migrate_set_cache_size @var{value}
@findex migrate_set_cache_size
Set cache size to @var{value} (in bytes) for xbzrle migrations.
895 896
ETEXI

897 898
    {
        .name       = "migrate_set_speed",
899
        .args_type  = "value:o",
900
        .params     = "value",
901 902
        .help       = "set maximum speed (in bytes) for migrations. "
	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
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        .mhandler.cmd = hmp_migrate_set_speed,
904 905
    },

906 907
STEXI
@item migrate_set_speed @var{value}
908
@findex migrate_set_speed
909
Set maximum speed to @var{value} (in bytes) for migrations.
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ETEXI

912 913
    {
        .name       = "migrate_set_downtime",
914
        .args_type  = "value:T",
915 916
        .params     = "value",
        .help       = "set maximum tolerated downtime (in seconds) for migrations",
917
        .mhandler.cmd = hmp_migrate_set_downtime,
918
    },
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STEXI
@item migrate_set_downtime @var{second}
922
@findex migrate_set_downtime
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Set maximum tolerated downtime (in seconds) for migration.
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ETEXI

    {
        .name       = "migrate_set_capability",
        .args_type  = "capability:s,state:b",
        .params     = "capability state",
        .help       = "Enable/Disable the usage of a capability for migration",
        .mhandler.cmd = hmp_migrate_set_capability,
    },

STEXI
@item migrate_set_capability @var{capability} @var{state}
@findex migrate_set_capability
Enable/Disable the usage of a capability @var{capability} for migration.
938 939 940
ETEXI

    {
941 942 943 944 945
        .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       = "send migration info to spice/vnc client",
        .user_print = monitor_user_noop,
946 947
        .mhandler.cmd_async = client_migrate_info,
        .flags      = MONITOR_CMD_ASYNC,
948 949
    },

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STEXI
@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
@findex client_migrate_info
Set the spice/vnc connection info for the migration target.  The spice/vnc
server will ask the spice/vnc client to automatically reconnect using the
new parameters (if specified) once the vm migration finished successfully.
ETEXI

958 959 960
#if defined(CONFIG_HAVE_CORE_DUMP)
    {
        .name       = "dump-guest-memory",
961 962
        .args_type  = "paging:-p,filename:F,begin:i?,length:i?",
        .params     = "[-p] filename [begin] [length]",
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        .help       = "dump guest memory to file"
                      "\n\t\t\t begin(optional): the starting physical address"
                      "\n\t\t\t length(optional): the memory size, in bytes",
        .mhandler.cmd = hmp_dump_guest_memory,
    },


STEXI
@item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
@findex dump-guest-memory
Dump guest memory to @var{protocol}. The file can be processed with crash or
gdb.
975
  filename: dump file name
976 977 978 979 980 981 982 983
    paging: do paging to get guest's memory mapping
     begin: the starting physical address. It's optional, and should be
            specified with length together.
    length: the memory size, in bytes. It's optional, and should be specified
            with begin together.
ETEXI
#endif

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    {
985
        .name       = "snapshot_blkdev",
986 987
        .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
        .params     = "[-n] device [new-image-file] [format]",
988 989 990 991 992
        .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. Otherwise the\n\t\t\t"
993 994 995 996
                      "snapshot will be internal! (currently unsupported).\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.",
997
        .mhandler.cmd = hmp_snapshot_blkdev,
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    },

1000 1001 1002 1003
STEXI
@item snapshot_blkdev
@findex snapshot_blkdev
Snapshot device, using snapshot file as target if provided
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ETEXI

    {
        .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",
        .mhandler.cmd = hmp_drive_mirror,
    },
STEXI
@item drive_mirror
@findex drive_mirror
Start mirroring a block device's writes to a new destination,
using the specified target.
1025 1026
ETEXI

1027 1028 1029 1030 1031
    {
        .name       = "drive_add",
        .args_type  = "pci_addr:s,opts:s",
        .params     = "[[<domain>:]<bus>:]<slot>\n"
                      "[file=file][,if=type][,bus=n]\n"
1032
                      "[,unit=m][,media=d][,index=i]\n"
1033
                      "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1034 1035
                      "[,snapshot=on|off][,cache=on|off]\n"
                      "[,readonly=on|off][,copy-on-read=on|off]",
1036
        .help       = "add drive to PCI storage controller",
1037
        .mhandler.cmd = drive_hot_add,
1038 1039
    },

1040 1041
STEXI
@item drive_add
1042
@findex drive_add
1043 1044 1045 1046
Add drive to PCI storage controller.
ETEXI

#if defined(TARGET_I386)
1047 1048 1049 1050 1051
    {
        .name       = "pci_add",
        .args_type  = "pci_addr:s,type:s,opts:s?",
        .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
        .help       = "hot-add PCI device",
1052
        .mhandler.cmd = pci_device_hot_add,
1053
    },
1054
#endif
1055

1056 1057
STEXI
@item pci_add
1058
@findex pci_add
1059 1060 1061 1062
Hot-add PCI device.
ETEXI

#if defined(TARGET_I386)
1063 1064 1065 1066 1067
    {
        .name       = "pci_del",
        .args_type  = "pci_addr:s",
        .params     = "[[<domain>:]<bus>:]<slot>",
        .help       = "hot remove PCI device",
1068
        .mhandler.cmd = do_pci_device_hot_remove,
1069
    },
1070
#endif
1071

1072 1073
STEXI
@item pci_del
1074
@findex pci_del
1075
Hot remove PCI device.
1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093
ETEXI

    {
        .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"
                      "<tlb header> = 32bit x 4\n\t\t\t"
                      "<tlb header prefix> = 32bit x 4",
        .user_print  = pcie_aer_inject_error_print,
1094
        .mhandler.cmd_new = do_pcie_aer_inject_error,
1095 1096 1097 1098 1099 1100
    },

STEXI
@item pcie_aer_inject_error
@findex pcie_aer_inject_error
Inject PCIe AER error
1101 1102
ETEXI

1103 1104 1105 1106 1107
    {
        .name       = "host_net_add",
        .args_type  = "device:s,opts:s?",
        .params     = "tap|user|socket|vde|dump [options]",
        .help       = "add host VLAN client",
1108
        .mhandler.cmd = net_host_device_add,
1109 1110
    },

1111 1112
STEXI
@item host_net_add
1113
@findex host_net_add
1114 1115 1116
Add host VLAN client.
ETEXI

1117 1118 1119 1120 1121
    {
        .name       = "host_net_remove",
        .args_type  = "vlan_id:i,device:s",
        .params     = "vlan_id name",
        .help       = "remove host VLAN client",
1122
        .mhandler.cmd = net_host_device_remove,
1123 1124
    },

1125 1126
STEXI
@item host_net_remove
1127
@findex host_net_remove
1128
Remove host VLAN client.
1129 1130 1131 1132 1133 1134 1135
ETEXI

    {
        .name       = "netdev_add",
        .args_type  = "netdev:O",
        .params     = "[user|tap|socket],id=str[,prop=value][,...]",
        .help       = "add host network device",
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        .mhandler.cmd = hmp_netdev_add,
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149
    },

STEXI
@item netdev_add
@findex netdev_add
Add host network device.
ETEXI

    {
        .name       = "netdev_del",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "remove host network device",
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        .mhandler.cmd = hmp_netdev_del,
1151 1152 1153 1154 1155 1156
    },

STEXI
@item netdev_del
@findex netdev_del
Remove host network device.
1157 1158 1159
ETEXI

#ifdef CONFIG_SLIRP
1160 1161 1162 1163 1164
    {
        .name       = "hostfwd_add",
        .args_type  = "arg1:s,arg2:s?,arg3:s?",
        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1165
        .mhandler.cmd = net_slirp_hostfwd_add,
1166
    },
1167 1168 1169 1170 1171 1172
#endif
STEXI
@item hostfwd_add
@findex hostfwd_add
Redirect TCP or UDP connections from host to guest (requires -net user).
ETEXI
1173

1174
#ifdef CONFIG_SLIRP
1175 1176 1177 1178 1179
    {
        .name       = "hostfwd_remove",
        .args_type  = "arg1:s,arg2:s?,arg3:s?",
        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
        .help       = "remove host-to-guest TCP or UDP redirection",
1180
        .mhandler.cmd = net_slirp_hostfwd_remove,
1181 1182
    },

1183 1184
#endif
STEXI
1185 1186 1187
@item hostfwd_remove
@findex hostfwd_remove
Remove host-to-guest TCP or UDP redirection.
1188 1189
ETEXI

1190 1191
    {
        .name       = "balloon",
1192
        .args_type  = "value:M",
1193
        .params     = "target",
1194
        .help       = "request VM to change its memory allocation (in MB)",
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        .mhandler.cmd = hmp_balloon,
1196 1197
    },

1198 1199
STEXI
@item balloon @var{value}
1200
@findex balloon
1201 1202 1203
Request VM to change its memory allocation to @var{value} (in MB).
ETEXI

1204 1205
    {
        .name       = "set_link",
1206 1207
        .args_type  = "name:s,up:b",
        .params     = "name on|off",
1208
        .help       = "change the link status of a network adapter",
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1209
        .mhandler.cmd = hmp_set_link,
1210 1211
    },

1212
STEXI
1213
@item set_link @var{name} [on|off]
1214
@findex set_link
1215
Switch link @var{name} on (i.e. up) or off (i.e. down).
1216 1217
ETEXI

1218 1219 1220 1221 1222
    {
        .name       = "watchdog_action",
        .args_type  = "action:s",
        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
        .help       = "change watchdog action",
1223
        .mhandler.cmd = do_watchdog_action,
1224 1225
    },

1226 1227
STEXI
@item watchdog_action
1228
@findex watchdog_action
1229 1230 1231
Change watchdog action.
ETEXI

1232 1233 1234 1235 1236
    {
        .name       = "acl_show",
        .args_type  = "aclname:s",
        .params     = "aclname",
        .help       = "list rules in the access control list",
1237
        .mhandler.cmd = do_acl_show,
1238 1239
    },

1240
STEXI
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@item acl_show @var{aclname}
1242
@findex acl_show
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List all the matching rules in the access control list, and the default
policy. There are currently two named access control lists,
@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
certificate distinguished name, and SASL username respectively.
ETEXI
1248

1249 1250 1251 1252 1253
    {
        .name       = "acl_policy",
        .args_type  = "aclname:s,policy:s",
        .params     = "aclname allow|deny",
        .help       = "set default access control list policy",
1254
        .mhandler.cmd = do_acl_policy,
1255 1256
    },

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Jan Kiszka 已提交
1257
STEXI
J
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1258
@item acl_policy @var{aclname} @code{allow|deny}
1259
@findex acl_policy
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1260
Set the default access control list policy, used in the event that
1261
none of the explicit rules match. The default policy at startup is
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always @code{deny}.
ETEXI

1265 1266 1267 1268 1269
    {
        .name       = "acl_add",
        .args_type  = "aclname:s,match:s,policy:s,index:i?",
        .params     = "aclname match allow|deny [index]",
        .help       = "add a match rule to the access control list",
1270
        .mhandler.cmd = do_acl_add,
1271 1272
    },

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STEXI
1274 1275
@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
@findex acl_add
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Add a match rule to the access control list, allowing or denying access.
The match will normally be an exact username or x509 distinguished name,
but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1280
normally be appended to the end of the ACL, but can be inserted
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earlier in the list if the optional @var{index} parameter is supplied.
ETEXI

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    {
        .name       = "acl_remove",
        .args_type  = "aclname:s,match:s",
        .params     = "aclname match",
        .help       = "remove a match rule from the access control list",
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        .mhandler.cmd = do_acl_remove,
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    },

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STEXI
@item acl_remove @var{aclname} @var{match}
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@findex acl_remove
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Remove the specified match rule from the access control list.
ETEXI

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    {
        .name       = "acl_reset",
        .args_type  = "aclname:s",
        .params     = "aclname",
        .help       = "reset the access control list",
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        .mhandler.cmd = do_acl_reset,
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    },

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STEXI
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@item acl_reset @var{aclname}
@findex acl_reset
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Remove all matches from the access control list, and set the default
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policy back to @code{deny}.
ETEXI

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    {
        .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",
        .mhandler.cmd = hmp_nbd_server_start,
    },
STEXI
@item nbd_server_start @var{host}:@var{port}
@findex nbd_server_start
Start an NBD server on the given host and/or port.  If the @option{-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 @option{-w} option makes the devices writable too.
ETEXI

    {
        .name       = "nbd_server_add",
        .args_type  = "writable:-w,device:B",
        .params     = "nbd_server_add [-w] device",
        .help       = "export a block device via NBD",
        .mhandler.cmd = hmp_nbd_server_add,
    },
STEXI
@item nbd_server_add @var{device}
@findex nbd_server_add
Export a block device through QEMU's NBD server, which must be started
beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
exported device writable too.
ETEXI

    {
        .name       = "nbd_server_stop",
        .args_type  = "",
        .params     = "nbd_server_stop",
        .help       = "stop serving block devices using the NBD protocol",
        .mhandler.cmd = hmp_nbd_server_stop,
    },
STEXI
@item nbd_server_stop
@findex nbd_server_stop
Stop the QEMU embedded NBD server.
ETEXI


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#if defined(TARGET_I386)
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    {
        .name       = "mce",
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        .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]",
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        .mhandler.cmd = do_inject_mce,
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    },

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#endif
STEXI
@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
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@findex mce (x86)
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Inject an MCE on the given CPU (x86 only).
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ETEXI

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    {
        .name       = "getfd",
        .args_type  = "fdname:s",
        .params     = "getfd name",
        .help       = "receive a file descriptor via SCM rights and assign it a name",
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        .mhandler.cmd = hmp_getfd,
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    },

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STEXI
@item getfd @var{fdname}
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@findex getfd
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If a file descriptor is passed alongside this command using the SCM_RIGHTS
mechanism on unix sockets, it is stored using the name @var{fdname} for
later use by other monitor commands.
ETEXI

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    {
        .name       = "closefd",
        .args_type  = "fdname:s",
        .params     = "closefd name",
        .help       = "close a file descriptor previously passed via SCM rights",
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        .mhandler.cmd = hmp_closefd,
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    },

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STEXI
@item closefd @var{fdname}
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@findex closefd
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Close the file descriptor previously assigned to @var{fdname} using the
@code{getfd} command. This is only needed if the file descriptor was never
used by another monitor command.
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ETEXI

    {
        .name       = "block_passwd",
        .args_type  = "device:B,password:s",
        .params     = "block_passwd device password",
        .help       = "set the password of encrypted block devices",
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        .mhandler.cmd = hmp_block_passwd,
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    },

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STEXI
@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
@findex block_set_io_throttle
Change I/O throttle limits for a block drive to @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
ETEXI

    {
        .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",
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        .mhandler.cmd = hmp_block_set_io_throttle,
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    },

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STEXI
@item block_passwd @var{device} @var{password}
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@findex block_passwd
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Set the encrypted device @var{device} password to @var{password}
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ETEXI

    {
        .name       = "set_password",
        .args_type  = "protocol:s,password:s,connected:s?",
        .params     = "protocol password action-if-connected",
        .help       = "set spice/vnc password",
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        .mhandler.cmd = hmp_set_password,
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    },

STEXI
@item set_password [ vnc | spice ] password [ action-if-connected ]
@findex set_password

Change spice/vnc password.  Use zero to make the password stay valid
forever.  @var{action-if-connected} specifies what should happen in
case a connection is established: @var{fail} makes the password change
fail.  @var{disconnect} changes the password and disconnects the
client.  @var{keep} changes the password and keeps the connection up.
@var{keep} is the default.
ETEXI

    {
        .name       = "expire_password",
        .args_type  = "protocol:s,time:s",
        .params     = "protocol time",
        .help       = "set spice/vnc password expire-time",
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        .mhandler.cmd = hmp_expire_password,
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    },

STEXI
@item expire_password [ vnc | spice ] expire-time
@findex expire_password

Specify when a password for spice/vnc becomes
invalid. @var{expire-time} accepts:

@table @var
@item now
Invalidate password instantly.

@item never
Password stays valid forever.

@item +nsec
Password stays valid for @var{nsec} seconds starting now.

@item nsec
Password is invalidated at the given time.  @var{nsec} are the seconds
passed since 1970, i.e. unix epoch.

@end table
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ETEXI

    {
        .name       = "chardev-add",
        .args_type  = "args:s",
        .params     = "args",
        .help       = "add chardev",
        .mhandler.cmd = hmp_chardev_add,
    },

STEXI
@item chardev_add args
@findex chardev_add

chardev_add accepts the same parameters as the -chardev command line switch.

ETEXI

    {
        .name       = "chardev-remove",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "remove chardev",
        .mhandler.cmd = hmp_chardev_remove,
    },

STEXI
@item chardev_remove id
@findex chardev_remove

Removes the chardev @var{id}.

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ETEXI
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    {
        .name       = "info",
        .args_type  = "item:s?",
        .params     = "[subcommand]",
        .help       = "show various information about the system state",
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        .mhandler.cmd = do_info_help,
        .sub_table = info_cmds,
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    },

STEXI
@item info @var{subcommand}
@findex info
Show various information about the system state.

@table @option
@item info version
show the version of QEMU
@item info network
show the various VLANs and the associated devices
@item info chardev
show the character devices
@item info block
show the block devices
@item info blockstats
show block device statistics
@item info registers
show the cpu registers
@item info cpus
show infos for each CPU
@item info history
show the command line history
@item info irq
show the interrupts statistics (if available)
@item info pic
show i8259 (PIC) state
@item info pci
show emulated PCI device info
@item info tlb
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show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
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@item info mem
show the active virtual memory mappings (i386 only)
@item info jit
show dynamic compiler info
@item info numa
show NUMA information
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@item info kvm
show KVM information
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@item info usb
show USB devices plugged on the virtual USB hub
@item info usbhost
show all USB host devices
@item info profile
show profiling information
@item info capture
show information about active capturing
@item info snapshots
show list of VM snapshots
@item info status
show the current VM status (running|paused)
@item info pcmcia
show guest PCMCIA status
@item info mice
show which guest mouse is receiving events
@item info vnc
show the vnc server status
@item info name
show the current VM name
@item info uuid
show the current VM UUID
@item info cpustats
show CPU statistics
@item info usernet
show user network stack connection states
@item info migrate
show migration status
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@item info migrate_capabilities
show current migration capabilities
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@item info migrate_cache_size
show current migration XBZRLE cache size
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@item info balloon
show balloon information
@item info qtree
show device tree
@item info qdm
show qdev device model list
@item info roms
show roms
@end table
ETEXI

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STEXI
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@item info trace-events
show available trace events and their state
ETEXI

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STEXI
@end table
ETEXI