Archipelago » qemu

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

    {

        .name       = "help|?",

        .args_type  = "name:s?",

        .params     = "[cmd]",

        .help       = "show the help",

        .mhandler.cmd = do_help_cmd,

    },

STEXI

@item help or ? [@var{cmd}]

@findex help

Show the help for all commands or just for command @var{cmd}.

ETEXI

    {

        .name       = "commit",

        .args_type  = "device:B",

        .params     = "device|all",

        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",

        .mhandler.cmd = do_commit,

    },

STEXI

@item commit

@findex commit

Commit changes to the disk images (if -snapshot is used) or backing files.

ETEXI

    {

        .name       = "q|quit",

        .args_type  = "",

        .params     = "",

        .help       = "quit the emulator",

        .user_print = monitor_user_noop,

        .mhandler.cmd = hmp_quit,

    },

STEXI

@item q or quit

@findex quit

Quit the emulator.

ETEXI

    {

        .name       = "block_resize",

        .args_type  = "device:B,size:o",

        .params     = "device size",

        .help       = "resize a block image",

        .mhandler.cmd = hmp_block_resize,

    },

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

    {

        .name       = "block_stream",

        .args_type  = "device:B,speed:o?,base:s?",

        .params     = "device [speed [base]]",

        .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.

ETEXI

    {

        .name       = "block_job_set_speed",

        .args_type  = "device:B,speed:o",

        .params     = "device speed",

        .help       = "set maximum speed for a background block operation",

        .mhandler.cmd = hmp_block_job_set_speed,

    },

STEXI

@item block_job_set_speed

@findex block_job_set_speed

Set maximum speed for a background block operation.

ETEXI

    {

        .name       = "block_job_cancel",

        .args_type  = "device:B",

        .params     = "device",

        .help       = "stop an active background block operation",

        .mhandler.cmd = hmp_block_job_cancel,

    },

STEXI

@item block_job_cancel

@findex block_job_cancel

Stop an active block streaming operation.

ETEXI

    {

        .name       = "eject",

        .args_type  = "force:-f,device:B",

        .params     = "[-f] device",

        .help       = "eject a removable medium (use -f to force it)",

        .mhandler.cmd = hmp_eject,

    },

STEXI

@item eject [-f] @var{device}

@findex eject

Eject a removable medium (use -f to force it).

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.

ETEXI

    {

        .name       = "change",

        .args_type  = "device:B,target:F,arg:s?",

        .params     = "device filename [format]",

        .help       = "change a removable medium, optional format",

        .mhandler.cmd = hmp_change,

    },

STEXI

@item change @var{device} @var{setting}

@findex change

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

    {

        .name       = "screendump",

        .args_type  = "filename:F",

        .params     = "filename",

        .help       = "save screen into PPM image 'filename'",

        .user_print = monitor_user_noop,

        .mhandler.cmd_new = do_screen_dump,

    },

STEXI

@item screendump @var{filename}

@findex screendump

Save screen into PPM image @var{filename}.

ETEXI

    {

        .name       = "logfile",

        .args_type  = "filename:F",

        .params     = "filename",

        .help       = "output logs to 'filename'",

        .mhandler.cmd = do_logfile,

    },

STEXI

@item logfile @var{filename}

@findex logfile

Output logs to @var{filename}.

ETEXI

    {

        .name       = "trace-event",

        .args_type  = "name:s,option:b",

        .params     = "name on|off",

        .help       = "changes status of a specific trace event",

        .mhandler.cmd = do_trace_event_set_state,

    },

STEXI

@item trace-event

@findex trace-event

changes status of a trace event

ETEXI

#if defined(CONFIG_TRACE_SIMPLE)

    {

        .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.

ETEXI

#endif

    {

        .name       = "log",

        .args_type  = "items:s",

        .params     = "item1[,...]",

        .help       = "activate logging of the specified items to '/tmp/qemu.log'",

        .mhandler.cmd = do_log,

    },

STEXI

@item log @var{item1}[,...]

@findex log

Activate logging of the specified items to @file{/tmp/qemu.log}.

ETEXI

    {

        .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",

        .mhandler.cmd = do_savevm,

    },

STEXI

@item savevm [@var{tag}|@var{id}]

@findex savevm

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

    {

        .name       = "loadvm",

        .args_type  = "name:s",

        .params     = "tag|id",

        .help       = "restore a VM snapshot from its tag or id",

        .mhandler.cmd = do_loadvm,

    },

STEXI

@item loadvm @var{tag}|@var{id}

@findex loadvm

Set the whole virtual machine to the snapshot identified by the tag

@var{tag} or the unique snapshot ID @var{id}.

ETEXI

    {

        .name       = "delvm",

        .args_type  = "name:s",

        .params     = "tag|id",

        .help       = "delete a VM snapshot from its tag or id",

        .mhandler.cmd = do_delvm,

    },

STEXI

@item delvm @var{tag}|@var{id}

@findex delvm

Delete the snapshot identified by @var{tag} or @var{id}.

ETEXI

    {

        .name       = "singlestep",

        .args_type  = "option:s?",

        .params     = "[on|off]",

        .help       = "run emulation in singlestep mode or switch to normal mode",

        .mhandler.cmd = do_singlestep,

    },

STEXI

@item singlestep [off]

@findex singlestep

Run the emulation in single step mode.

If called with option off, the emulation returns to normal mode.

ETEXI

    {

        .name       = "stop",

        .args_type  = "",

        .params     = "",

        .help       = "stop emulation",

        .mhandler.cmd = hmp_stop,

    },

STEXI

@item stop

@findex stop

Stop emulation.

ETEXI

    {

        .name       = "c|cont",

        .args_type  = "",

        .params     = "",

        .help       = "resume emulation",

        .mhandler.cmd = hmp_cont,

    },

STEXI

@item c or cont

@findex cont

Resume emulation.

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.

ETEXI

    {

        .name       = "gdbserver",

        .args_type  = "device:s?",

        .params     = "[device]",

        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",

        .mhandler.cmd = do_gdbserver,

    },

STEXI

@item gdbserver [@var{port}]

@findex gdbserver

Start gdbserver session (default @var{port}=1234)

ETEXI

    {

        .name       = "x",

        .args_type  = "fmt:/,addr:l",

        .params     = "/fmt addr",

        .help       = "virtual memory dump starting at 'addr'",

        .mhandler.cmd = do_memory_dump,

    },

STEXI

@item x/fmt @var{addr}

@findex x

Virtual memory dump starting at @var{addr}.

ETEXI

    {

        .name       = "xp",

        .args_type  = "fmt:/,addr:l",

        .params     = "/fmt addr",

        .help       = "physical memory dump starting at 'addr'",

        .mhandler.cmd = do_physical_memory_dump,

    },

STEXI

@item xp /@var{fmt} @var{addr}

@findex xp

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

    {

        .name       = "p|print",

        .args_type  = "fmt:/,val:l",

        .params     = "/fmt expr",

        .help       = "print expression value (use $reg for CPU register access)",

        .mhandler.cmd = do_print,

    },

STEXI

@item p or print/@var{fmt} @var{expr}

@findex print

Print expression value. Only the @var{format} part of @var{fmt} is

used.

ETEXI

    {

        .name       = "i",

        .args_type  = "fmt:/,addr:i,index:i.",

        .params     = "/fmt addr",

        .help       = "I/O port read",

        .mhandler.cmd = do_ioport_read,

    },

STEXI

Read I/O port.

ETEXI

    {

        .name       = "o",

        .args_type  = "fmt:/,addr:i,val:i",

        .params     = "/fmt addr value",

        .help       = "I/O port write",

        .mhandler.cmd = do_ioport_write,

    },

STEXI

Write to I/O port.

ETEXI

    {

        .name       = "sendkey",

        .args_type  = "string: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)",

        .mhandler.cmd = do_sendkey,

    },

STEXI

@item sendkey @var{keys}

@findex sendkey

Send @var{keys} to the emulator. @var{keys} could be the name of the

key or @code{#} followed by the raw value in either decimal or hexadecimal

format. Use @code{-} to press several keys simultaneously. Example:

@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

    {

        .name       = "system_reset",

        .args_type  = "",

        .params     = "",

        .help       = "reset the system",

        .mhandler.cmd = hmp_system_reset,

    },

STEXI

@item system_reset

@findex system_reset

Reset the system.

ETEXI

    {

        .name       = "system_powerdown",

        .args_type  = "",

        .params     = "",

        .help       = "send system power down event",

        .mhandler.cmd = hmp_system_powerdown,

    },

STEXI

@item system_powerdown

@findex system_powerdown

Power down the system (if supported).

ETEXI

    {

        .name       = "sum",

        .args_type  = "start:i,size:i",

        .params     = "addr size",

        .help       = "compute the checksum of a memory region",

        .mhandler.cmd = do_sum,

    },

STEXI

@item sum @var{addr} @var{size}

@findex sum

Compute the checksum of a memory region.

ETEXI

    {

        .name       = "usb_add",

        .args_type  = "devname:s",

        .params     = "device",

        .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",

        .mhandler.cmd = do_usb_add,

    },

STEXI

@item usb_add @var{devname}

@findex usb_add

Add the USB device @var{devname}.  For details of available devices see

@ref{usb_devices}

ETEXI

    {

        .name       = "usb_del",

        .args_type  = "devname:s",

        .params     = "device",

        .help       = "remove USB device 'bus.addr'",

        .mhandler.cmd = do_usb_del,

    },

STEXI

@item usb_del @var{devname}

@findex usb_del

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

    {

        .name       = "device_add",

        .args_type  = "device:O",

        .params     = "driver[,prop=value][,...]",

        .help       = "add device, like -device on the command line",

        .user_print = monitor_user_noop,

        .mhandler.cmd_new = do_device_add,

    },

STEXI

@item device_add @var{config}

@findex device_add

Add device.

ETEXI

    {

        .name       = "device_del",

        .args_type  = "id:s",

        .params     = "device",

        .help       = "remove device",

        .mhandler.cmd = hmp_device_del,

    },

STEXI

@item device_del @var{id}

@findex device_del

Remove device @var{id}.

ETEXI

    {

        .name       = "cpu",

        .args_type  = "index:i",

        .params     = "index",

        .help       = "set the default CPU",

        .mhandler.cmd = hmp_cpu,

    },

STEXI

@item cpu @var{index}

@findex cpu

Set the default CPU.

ETEXI

    {

        .name       = "mouse_move",

        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",

        .params     = "dx dy [dz]",

        .help       = "send mouse move events",

        .mhandler.cmd = do_mouse_move,

    },

STEXI

@item mouse_move @var{dx} @var{dy} [@var{dz}]

@findex mouse_move

Move the active mouse to the specified coordinates @var{dx} @var{dy}

with optional scroll axis @var{dz}.

ETEXI

    {

        .name       = "mouse_button",

        .args_type  = "button_state:i",

        .params     = "state",

        .help       = "change mouse button state (1=L, 2=M, 4=R)",

        .mhandler.cmd = do_mouse_button,

    },

STEXI

@item mouse_button @var{val}

@findex mouse_button

Change the active mouse button state @var{val} (1=L, 2=M, 4=R).

ETEXI

    {

        .name       = "mouse_set",

        .args_type  = "index:i",

        .params     = "index",

        .help       = "set which mouse device receives events",

        .mhandler.cmd = do_mouse_set,

    },

STEXI

@item mouse_set @var{index}

@findex mouse_set

Set which mouse device receives events at given @var{index}, index

can be obtained with

@example

info mice

@end example

ETEXI

#ifdef HAS_AUDIO

    {

        .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)",

        .mhandler.cmd = do_wav_capture,

    },

#endif

STEXI

@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]

@findex wavcapture

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

    {

        .name       = "stopcapture",

        .args_type  = "n:i",

        .params     = "capture index",

        .help       = "stop capture",

        .mhandler.cmd = do_stop_capture,

    },

#endif

STEXI

@item stopcapture @var{index}

@findex stopcapture

Stop capture with a given @var{index}, index can be obtained with

@example

info capture

@end example

ETEXI

    {

        .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'",

        .mhandler.cmd = hmp_memsave,

    },

STEXI

@item memsave @var{addr} @var{size} @var{file}

@findex memsave

save to disk virtual memory dump starting at @var{addr} of size @var{size}.

ETEXI

    {

        .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'",

        .mhandler.cmd = hmp_pmemsave,

    },

STEXI

@item pmemsave @var{addr} @var{size} @var{file}

@findex pmemsave

save to disk physical memory dump starting at @var{addr} of size @var{size}.

ETEXI

    {

        .name       = "boot_set",

        .args_type  = "bootdevice:s",

        .params     = "bootdevice",

        .help       = "define new values for the boot device list",

        .mhandler.cmd = do_boot_set,

    },

STEXI

@item boot_set @var{bootdevicelist}

@findex boot_set

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)

    {

        .name       = "nmi",

        .args_type  = "",

        .params     = "",

        .help       = "inject an NMI on all guest's CPUs",

        .mhandler.cmd = hmp_inject_nmi,

    },

#endif

STEXI

@item nmi @var{cpu}

@findex nmi

Inject an NMI on the given CPU (x86 only).

ETEXI

    {

        .name       = "migrate",

        .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)",

        .mhandler.cmd = hmp_migrate,

    },

STEXI

@item migrate [-d] [-b] [-i] @var{uri}

@findex migrate

Migrate to @var{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)

ETEXI

    {

        .name       = "migrate_cancel",

        .args_type  = "",

        .params     = "",

        .help       = "cancel the current VM migration",

        .mhandler.cmd = hmp_migrate_cancel,

    },

STEXI

@item migrate_cancel

@findex migrate_cancel

Cancel the current VM migration.

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.

ETEXI

    {

        .name       = "migrate_set_speed",

        .args_type  = "value:o",

        .params     = "value",

        .help       = "set maximum speed (in bytes) for migrations. "

	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",

        .mhandler.cmd = hmp_migrate_set_speed,

    },

STEXI

@item migrate_set_speed @var{value}

@findex migrate_set_speed

Set maximum speed to @var{value} (in bytes) for migrations.

ETEXI

    {

        .name       = "migrate_set_downtime",

        .args_type  = "value:T",

        .params     = "value",

        .help       = "set maximum tolerated downtime (in seconds) for migrations",

        .mhandler.cmd = hmp_migrate_set_downtime,

    },

STEXI

@item migrate_set_downtime @var{second}

@findex migrate_set_downtime

Set maximum tolerated downtime (in seconds) for migration.

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.

ETEXI

    {

        .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,

        .mhandler.cmd_async = client_migrate_info,

        .flags      = MONITOR_CMD_ASYNC,

    },

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

#if defined(CONFIG_HAVE_CORE_DUMP)

    {

        .name       = "dump-guest-memory",

        .args_type  = "paging:-p,protocol:s,begin:i?,length:i?",

        .params     = "[-p] protocol [begin] [length]",

        .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",

        .user_print = monitor_user_noop,

        .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.

  protocol: destination file(started with "file:") or destination file

            descriptor (started with "fd:")

    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

    {

        .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. Otherwise the\n\t\t\t"

                      "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.",

        .mhandler.cmd = hmp_snapshot_blkdev,

    },

STEXI

@item snapshot_blkdev

@findex snapshot_blkdev

Snapshot device, using snapshot file as target if provided

ETEXI

    {

        .name       = "drive_add",

        .args_type  = "pci_addr:s,opts:s",

        .params     = "[[<domain>:]<bus>:]<slot>\n"

                      "[file=file][,if=type][,bus=n]\n"

                      "[,unit=m][,media=d][,index=i]\n"

                      "[,cyls=c,heads=h,secs=s[,trans=t]]\n"

                      "[,snapshot=on|off][,cache=on|off]\n"

                      "[,readonly=on|off][,copy-on-read=on|off]",

        .help       = "add drive to PCI storage controller",

        .mhandler.cmd = drive_hot_add,

    },

STEXI

@item drive_add

@findex drive_add

Add drive to PCI storage controller.

ETEXI

#if defined(TARGET_I386)

    {

        .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",

        .mhandler.cmd = pci_device_hot_add,

    },