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", .cmd = do_help_cmd, .flags = "p", }, 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", .cmd = hmp_commit, }, STEXI @item commit @findex commit Commit changes to the disk images (if -snapshot is used) or backing files. If the backing file is smaller than the snapshot, then the backing file will be resized to be the same size as the snapshot. If the snapshot is smaller than the backing file, the backing file will not be truncated. If you want the backing file to match the size of the smaller snapshot, you can safely truncate it yourself once the commit operation successfully completes. ETEXI { .name = "q|quit", .args_type = "", .params = "", .help = "quit the emulator", .cmd = hmp_quit, }, STEXI @item q or quit @findex quit Quit the emulator. ETEXI { .name = "exit_preconfig", .args_type = "", .params = "", .help = "exit the preconfig state", .cmd = hmp_exit_preconfig, .flags = "p", }, STEXI @item exit_preconfig @findex exit_preconfig This command makes QEMU exit the preconfig state and proceed with VM initialization using configuration data provided on the command line and via the QMP monitor during the preconfig state. The command is only available during the preconfig state (i.e. when the --preconfig command line option was in use). ETEXI { .name = "block_resize", .args_type = "device:B,size:o", .params = "device size", .help = "resize a block image", .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", .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", .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 = "force:-f,device:B", .params = "[-f] device", .help = "stop an active background block operation (use -f" "\n\t\t\t if you want to abort the operation immediately" "\n\t\t\t instead of keep running until data is in sync)", .cmd = hmp_block_job_cancel, }, STEXI @item block_job_cancel @findex block_job_cancel 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", .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. ETEXI { .name = "block_job_pause", .args_type = "device:B", .params = "device", .help = "pause an active background block operation", .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", .cmd = hmp_block_job_resume, }, STEXI @item block_job_resume @findex block_job_resume Resume a paused 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)", .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:B", .params = "device", .help = "remove host block device", .cmd = hmp_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. These errors are always reported to the guest, regardless of the drive's error actions (drive options rerror, werror). ETEXI { .name = "change", .args_type = "device:B,target:F,arg:s?,read-only-mode:s?", .params = "device filename [format [read-only-mode]]", .help = "change a removable medium, optional format", .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} [@var{read-only-mode}]] 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. @var{read-only-mode} may be used to change the read-only status of the device. It accepts the following values: @table @var @item retain Retains the current status; this is the default. @item read-only Makes the device read-only. @item read-write Makes the device writable. @end table @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,device:s?,head:i?", .params = "filename [device [head]]", .help = "save screen from head 'head' of display device 'device' " "into PPM image 'filename'", .cmd = hmp_screendump, }, 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'", .cmd = hmp_logfile, }, STEXI @item logfile @var{filename} @findex logfile Output logs to @var{filename}. ETEXI { .name = "trace-event", .args_type = "name:s,option:b,vcpu:i?", .params = "name on|off [vcpu]", .help = "changes status of a specific trace event " "(vcpu: vCPU to set, default is all)", .cmd = hmp_trace_event, .command_completion = trace_event_completion, }, 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", .cmd = hmp_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", .cmd = hmp_log, }, STEXI @item log @var{item1}[,...] @findex log Activate logging of the specified items. 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", .cmd = hmp_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", .cmd = hmp_loadvm, .command_completion = loadvm_completion, }, 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", .cmd = hmp_delvm, .command_completion = delvm_completion, }, 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", .cmd = hmp_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", .cmd = hmp_stop, }, STEXI @item stop @findex stop Stop emulation. ETEXI { .name = "c|cont", .args_type = "", .params = "", .help = "resume emulation", .cmd = hmp_cont, }, STEXI @item c or cont @findex cont Resume emulation. ETEXI { .name = "system_wakeup", .args_type = "", .params = "", .help = "wakeup guest from suspend", .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'", .cmd = hmp_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'", .cmd = hmp_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'", .cmd = hmp_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 = "gpa2hva", .args_type = "addr:l", .params = "addr", .help = "print the host virtual address corresponding to a guest physical address", .cmd = hmp_gpa2hva, }, STEXI @item gpa2hva @var{addr} @findex gpa2hva Print the host virtual address at which the guest's physical address @var{addr} is mapped. ETEXI #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 STEXI @item gpa2hpa @var{addr} @findex gpa2hpa Print the host physical address at which the guest's physical address @var{addr} is mapped. ETEXI { .name = "p|print", .args_type = "fmt:/,val:l", .params = "/fmt expr", .help = "print expression value (use $reg for CPU register access)", .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", .cmd = hmp_ioport_read, }, STEXI @item i/@var{fmt} @var{addr} [.@var{index}] @findex i Read I/O port. ETEXI { .name = "o", .args_type = "fmt:/,addr:i,val:i", .params = "/fmt addr value", .help = "I/O port write", .cmd = hmp_ioport_write, }, STEXI @item o/@var{fmt} @var{addr} @var{val} @findex o Write to I/O port. ETEXI { .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, }, STEXI @item sendkey @var{keys} @findex sendkey 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: @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", .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", .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", .cmd = hmp_sum, }, STEXI @item sum @var{addr} @var{size} @findex sum Compute the checksum of a memory region. ETEXI { .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, }, STEXI @item device_add @var{config} @findex device_add Add device. ETEXI { .name = "device_del", .args_type = "id:s", .params = "device", .help = "remove device", .cmd = hmp_device_del, .command_completion = device_del_completion, }, STEXI @item device_del @var{id} @findex device_del Remove device @var{id}. @var{id} may be a short ID or a QOM object path. ETEXI { .name = "cpu", .args_type = "index:i", .params = "index", .help = "set the default CPU", .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", .cmd = hmp_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)", .cmd = hmp_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", .cmd = hmp_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 { .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)", .cmd = hmp_wavcapture, }, 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 { .name = "stopcapture", .args_type = "n:i", .params = "capture index", .help = "stop capture", .cmd = hmp_stopcapture, }, 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'", .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'", .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", .cmd = hmp_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 { .name = "nmi", .args_type = "", .params = "", .help = "inject an NMI", .cmd = hmp_nmi, }, STEXI @item nmi @var{cpu} @findex nmi Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). ETEXI { .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, }, STEXI @item ringbuf_write @var{device} @var{data} @findex ringbuf_write Write @var{data} to ring buffer character device @var{device}. @var{data} must be a UTF-8 string. ETEXI { .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, }, STEXI @item ringbuf_read @var{device} @findex ringbuf_read Read and print up to @var{size} bytes from ring buffer character device @var{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. ETEXI { .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, }, 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", .cmd = hmp_migrate_cancel, }, STEXI @item migrate_cancel @findex migrate_cancel Cancel the current VM migration. ETEXI { .name = "migrate_continue", .args_type = "state:s", .params = "state", .help = "Continue migration from the given paused state", .cmd = hmp_migrate_continue, }, STEXI @item migrate_continue @var{state} @findex migrate_continue Continue migration from the paused state @var{state} ETEXI { .name = "migrate_incoming", .args_type = "uri:s", .params = "uri", .help = "Continue an incoming migration from an -incoming defer", .cmd = hmp_migrate_incoming, }, STEXI @item migrate_incoming @var{uri} @findex migrate_incoming Continue an incoming migration using the @var{uri} (that has the same syntax as the -incoming option). ETEXI { .name = "migrate_recover", .args_type = "uri:s", .params = "uri", .help = "Continue a paused incoming postcopy migration", .cmd = hmp_migrate_recover, }, STEXI @item migrate_recover @var{uri} @findex migrate_recover Continue a paused incoming postcopy migration using the @var{uri}. ETEXI { .name = "migrate_pause", .args_type = "", .params = "", .help = "Pause an ongoing migration (postcopy-only)", .cmd = hmp_migrate_pause, }, STEXI @item migrate_pause @findex migrate_pause Pause an ongoing migration. Currently it only supports postcopy. 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", .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", .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", .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", .cmd = hmp_migrate_set_capability, .command_completion = migrate_set_capability_completion, }, 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 = "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, }, STEXI @item migrate_set_parameter @var{parameter} @var{value} @findex migrate_set_parameter Set the parameter @var{parameter} for migration. ETEXI { .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, }, STEXI @item migrate_start_postcopy @findex migrate_start_postcopy Switch in-progress migration to postcopy mode. Ignored after the end of migration (or once already in postcopy). ETEXI { .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, }, STEXI @item x_colo_lost_heartbeat @findex x_colo_lost_heartbeat Tell COLO that heartbeat is lost, a failover or takeover is needed. 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 = "set migration information for remote display", .cmd = hmp_client_migrate_info, }, STEXI @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} @findex client_migrate_info 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. ETEXI { .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 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, }, STEXI @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} @item dump-guest-memory [-z|-l|-s|-w] @var{filename} @findex dump-guest-memory Dump guest memory to @var{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. ETEXI #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 STEXI @item dump-skeys @var{filename} @findex dump-skeys Save guest storage keys to a file. ETEXI #if defined(TARGET_S390X) { .name = "migration_mode", .args_type = "mode:i", .params = "mode", .help = "Enables or disables migration mode\n", .cmd = hmp_migrationmode, }, #endif STEXI @item migration_mode @var{mode} @findex migration_mode Enables or disables migration mode. ETEXI { .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, }, STEXI @item snapshot_blkdev @findex snapshot_blkdev Snapshot device, using snapshot file as target if provided ETEXI { .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, }, STEXI @item snapshot_blkdev_internal @findex snapshot_blkdev_internal Take an internal snapshot on device if it support ETEXI { .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, }, STEXI @item snapshot_delete_blkdev_internal @findex snapshot_delete_blkdev_internal Delete an internal snapshot on device if it support 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", .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. ETEXI { .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, }, STEXI @item drive_backup @findex drive_backup Start a point-in-time copy of a block device to a specificed target. ETEXI { .name = "drive_add", .args_type = "node:-n,pci_addr:s,opts:s", .params = "[-n] [[:]:]\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, }, STEXI @item drive_add @findex drive_add Add drive to PCI storage controller. 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 " " [ []]", .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" " = qdev device id\n\t\t\t" " = error string or 32bit\n\t\t\t" " = 32bit x 4\n\t\t\t" " = 32bit x 4", .cmd = hmp_pcie_aer_inject_error, }, STEXI @item pcie_aer_inject_error @findex pcie_aer_inject_error Inject PCIe AER error ETEXI { .name = "netdev_add", .args_type = "netdev:O", .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", .help = "add host network device", .cmd = hmp_netdev_add, .command_completion = netdev_add_completion, }, 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", .cmd = hmp_netdev_del, .command_completion = netdev_del_completion, }, STEXI @item netdev_del @findex netdev_del Remove host network device. ETEXI { .name = "object_add", .args_type = "object:O", .params = "[qom-type=]type,id=str[,prop=value][,...]", .help = "create QOM object", .cmd = hmp_object_add, .command_completion = object_add_completion, }, STEXI @item object_add @findex object_add Create QOM object. ETEXI { .name = "object_del", .args_type = "id:s", .params = "id", .help = "destroy QOM object", .cmd = hmp_object_del, .command_completion = object_del_completion, }, STEXI @item object_del @findex object_del Destroy QOM object. ETEXI #ifdef CONFIG_SLIRP { .name = "hostfwd_add", .args_type = "arg1:s,arg2:s?,arg3:s?", .params = "[hub_id name]|[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 STEXI @item hostfwd_add @findex hostfwd_add Redirect TCP or UDP connections from host to guest (requires -net user). ETEXI #ifdef CONFIG_SLIRP { .name = "hostfwd_remove", .args_type = "arg1:s,arg2:s?,arg3:s?", .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport", .help = "remove host-to-guest TCP or UDP redirection", .cmd = hmp_hostfwd_remove, }, #endif STEXI @item hostfwd_remove @findex hostfwd_remove Remove host-to-guest TCP or UDP redirection. ETEXI { .name = "balloon", .args_type = "value:M", .params = "target", .help = "request VM to change its memory allocation (in MB)", .cmd = hmp_balloon, }, STEXI @item balloon @var{value} @findex balloon Request VM to change its memory allocation to @var{value} (in MB). ETEXI { .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, }, STEXI @item set_link @var{name} [on|off] @findex set_link Switch link @var{name} on (i.e. up) or off (i.e. down). ETEXI { .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, }, STEXI @item watchdog_action @findex watchdog_action Change watchdog action. ETEXI { .name = "acl_show", .args_type = "aclname:s", .params = "aclname", .help = "list rules in the access control list", .cmd = hmp_acl_show, }, STEXI @item acl_show @var{aclname} @findex acl_show 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 { .name = "acl_policy", .args_type = "aclname:s,policy:s", .params = "aclname allow|deny", .help = "set default access control list policy", .cmd = hmp_acl_policy, }, STEXI @item acl_policy @var{aclname} @code{allow|deny} @findex acl_policy Set the default access control list policy, used in the event that none of the explicit rules match. The default policy at startup is always @code{deny}. ETEXI { .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", .cmd = hmp_acl_add, }, STEXI @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] @findex acl_add 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 normally be appended to the end of the ACL, but can be inserted earlier in the list if the optional @var{index} parameter is supplied. ETEXI { .name = "acl_remove", .args_type = "aclname:s,match:s", .params = "aclname match", .help = "remove a match rule from the access control list", .cmd = hmp_acl_remove, }, STEXI @item acl_remove @var{aclname} @var{match} @findex acl_remove Remove the specified match rule from the access control list. ETEXI { .name = "acl_reset", .args_type = "aclname:s", .params = "aclname", .help = "reset the access control list", .cmd = hmp_acl_reset, }, STEXI @item acl_reset @var{aclname} @findex acl_reset Remove all matches from the access control list, and set the default policy back to @code{deny}. ETEXI { .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, }, 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,name:s?", .params = "nbd_server_add [-w] device [name]", .help = "export a block device via NBD", .cmd = hmp_nbd_server_add, }, STEXI @item nbd_server_add @var{device} [ @var{name} ] @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. The export name is controlled by @var{name}, defaulting to @var{device}. ETEXI { .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, }, STEXI @item nbd_server_remove [-f] @var{name} @findex nbd_server_remove Stop exporting a block device through QEMU's NBD server, which was previously started with @command{nbd_server_add}. The @option{-f} option forces the server to drop the export immediately even if clients are connected; otherwise the command fails unless there are no clients. ETEXI { .name = "nbd_server_stop", .args_type = "", .params = "nbd_server_stop", .help = "stop serving block devices using the NBD protocol", .cmd = hmp_nbd_server_stop, }, STEXI @item nbd_server_stop @findex nbd_server_stop Stop the QEMU embedded NBD server. ETEXI #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 STEXI @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} @findex mce (x86) Inject an MCE on the given CPU (x86 only). ETEXI { .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, }, STEXI @item getfd @var{fdname} @findex getfd 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 { .name = "closefd", .args_type = "fdname:s", .params = "closefd name", .help = "close a file descriptor previously passed via SCM rights", .cmd = hmp_closefd, }, STEXI @item closefd @var{fdname} @findex closefd 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. ETEXI { .name = "block_passwd", .args_type = "device:B,password:s", .params = "block_passwd device password", .help = "set the password of encrypted block devices", .cmd = hmp_block_passwd, }, STEXI @item block_passwd @var{device} @var{password} @findex block_passwd Set the encrypted device @var{device} password to @var{password} This command is now obsolete and will always return an error since 2.10 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", .cmd = hmp_block_set_io_throttle, }, 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}. @var{device} can be a block device name, a qdev ID or a QOM path. ETEXI { .name = "set_password", .args_type = "protocol:s,password:s,connected:s?", .params = "protocol password action-if-connected", .help = "set spice/vnc password", .cmd = hmp_set_password, }, 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", .cmd = hmp_expire_password, }, 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 ETEXI { .name = "chardev-add", .args_type = "args:s", .params = "args", .help = "add chardev", .cmd = hmp_chardev_add, .command_completion = chardev_add_completion, }, STEXI @item chardev-add args @findex chardev-add chardev-add accepts the same parameters as the -chardev command line switch. ETEXI { .name = "chardev-change", .args_type = "id:s,args:s", .params = "id args", .help = "change chardev", .cmd = hmp_chardev_change, }, STEXI @item chardev-change args @findex chardev-change chardev-change accepts existing chardev @var{id} and then the same arguments as the -chardev command line switch (except for "id"). ETEXI { .name = "chardev-remove", .args_type = "id:s", .params = "id", .help = "remove chardev", .cmd = hmp_chardev_remove, .command_completion = chardev_remove_completion, }, STEXI @item chardev-remove id @findex chardev-remove Removes the chardev @var{id}. ETEXI { .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, }, STEXI @item chardev-send-break id @findex chardev-send-break Send a break on the chardev @var{id}. ETEXI { .name = "qemu-io", .args_type = "device:B,command:s", .params = "[device] \"[command]\"", .help = "run a qemu-io command on a block device", .cmd = hmp_qemu_io, }, STEXI @item qemu-io @var{device} @var{command} @findex qemu-io Executes a qemu-io command on the given block device. ETEXI { .name = "cpu-add", .args_type = "id:i", .params = "id", .help = "add cpu", .cmd = hmp_cpu_add, }, STEXI @item cpu-add @var{id} @findex cpu-add Add CPU with id @var{id} ETEXI { .name = "qom-list", .args_type = "path:s?", .params = "path", .help = "list QOM properties", .cmd = hmp_qom_list, .flags = "p", }, STEXI @item qom-list [@var{path}] Print QOM properties of object at location @var{path} ETEXI { .name = "qom-set", .args_type = "path:s,property:s,value:s", .params = "path property value", .help = "set QOM property", .cmd = hmp_qom_set, .flags = "p", }, STEXI @item qom-set @var{path} @var{property} @var{value} Set QOM property @var{property} of object at location @var{path} to value @var{value} ETEXI { .name = "info", .args_type = "item:s?", .params = "[subcommand]", .help = "show various information about the system state", .cmd = hmp_info_help, .sub_table = info_cmds, .flags = "p", }, STEXI @end table ETEXI