qemu/hmp-commands.hx
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   1HXCOMM Use DEFHEADING() to define headings in both help text and texi
   2HXCOMM Text between STEXI and ETEXI are copied to texi version and
   3HXCOMM discarded from C version
   4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
   5HXCOMM monitor commands
   6HXCOMM HXCOMM can be used for comments, discarded from both texi and C
   7
   8STEXI
   9@table @option
  10ETEXI
  11
  12    {
  13        .name       = "help|?",
  14        .args_type  = "name:S?",
  15        .params     = "[cmd]",
  16        .help       = "show the help",
  17        .mhandler.cmd = do_help_cmd,
  18    },
  19
  20STEXI
  21@item help or ? [@var{cmd}]
  22@findex help
  23Show the help for all commands or just for command @var{cmd}.
  24ETEXI
  25
  26    {
  27        .name       = "commit",
  28        .args_type  = "device:B",
  29        .params     = "device|all",
  30        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
  31        .mhandler.cmd = do_commit,
  32    },
  33
  34STEXI
  35@item commit
  36@findex commit
  37Commit changes to the disk images (if -snapshot is used) or backing files.
  38If the backing file is smaller than the snapshot, then the backing file will be
  39resized to be the same size as the snapshot.  If the snapshot is smaller than
  40the backing file, the backing file will not be truncated.  If you want the
  41backing file to match the size of the smaller snapshot, you can safely truncate
  42it yourself once the commit operation successfully completes.
  43ETEXI
  44
  45    {
  46        .name       = "q|quit",
  47        .args_type  = "",
  48        .params     = "",
  49        .help       = "quit the emulator",
  50        .user_print = monitor_user_noop,
  51        .mhandler.cmd = hmp_quit,
  52    },
  53
  54STEXI
  55@item q or quit
  56@findex quit
  57Quit the emulator.
  58ETEXI
  59
  60    {
  61        .name       = "block_resize",
  62        .args_type  = "device:B,size:o",
  63        .params     = "device size",
  64        .help       = "resize a block image",
  65        .mhandler.cmd = hmp_block_resize,
  66    },
  67
  68STEXI
  69@item block_resize
  70@findex block_resize
  71Resize a block image while a guest is running.  Usually requires guest
  72action to see the updated size.  Resize to a lower size is supported,
  73but should be used with extreme caution.  Note that this command only
  74resizes image files, it can not resize block devices like LVM volumes.
  75ETEXI
  76
  77    {
  78        .name       = "block_stream",
  79        .args_type  = "device:B,speed:o?,base:s?",
  80        .params     = "device [speed [base]]",
  81        .help       = "copy data from a backing file into a block device",
  82        .mhandler.cmd = hmp_block_stream,
  83    },
  84
  85STEXI
  86@item block_stream
  87@findex block_stream
  88Copy data from a backing file into a block device.
  89ETEXI
  90
  91    {
  92        .name       = "block_job_set_speed",
  93        .args_type  = "device:B,speed:o",
  94        .params     = "device speed",
  95        .help       = "set maximum speed for a background block operation",
  96        .mhandler.cmd = hmp_block_job_set_speed,
  97    },
  98
  99STEXI
 100@item block_job_set_speed
 101@findex block_job_set_speed
 102Set maximum speed for a background block operation.
 103ETEXI
 104
 105    {
 106        .name       = "block_job_cancel",
 107        .args_type  = "force:-f,device:B",
 108        .params     = "[-f] device",
 109        .help       = "stop an active background block operation (use -f"
 110                      "\n\t\t\t if the operation is currently paused)",
 111        .mhandler.cmd = hmp_block_job_cancel,
 112    },
 113
 114STEXI
 115@item block_job_cancel
 116@findex block_job_cancel
 117Stop an active background block operation (streaming, mirroring).
 118ETEXI
 119
 120    {
 121        .name       = "block_job_complete",
 122        .args_type  = "device:B",
 123        .params     = "device",
 124        .help       = "stop an active background block operation",
 125        .mhandler.cmd = hmp_block_job_complete,
 126    },
 127
 128STEXI
 129@item block_job_complete
 130@findex block_job_complete
 131Manually trigger completion of an active background block operation.
 132For mirroring, this will switch the device to the destination path.
 133ETEXI
 134
 135    {
 136        .name       = "block_job_pause",
 137        .args_type  = "device:B",
 138        .params     = "device",
 139        .help       = "pause an active background block operation",
 140        .mhandler.cmd = hmp_block_job_pause,
 141    },
 142
 143STEXI
 144@item block_job_pause
 145@findex block_job_pause
 146Pause an active block streaming operation.
 147ETEXI
 148
 149    {
 150        .name       = "block_job_resume",
 151        .args_type  = "device:B",
 152        .params     = "device",
 153        .help       = "resume a paused background block operation",
 154        .mhandler.cmd = hmp_block_job_resume,
 155    },
 156
 157STEXI
 158@item block_job_resume
 159@findex block_job_resume
 160Resume a paused block streaming operation.
 161ETEXI
 162
 163    {
 164        .name       = "eject",
 165        .args_type  = "force:-f,device:B",
 166        .params     = "[-f] device",
 167        .help       = "eject a removable medium (use -f to force it)",
 168        .mhandler.cmd = hmp_eject,
 169    },
 170
 171STEXI
 172@item eject [-f] @var{device}
 173@findex eject
 174Eject a removable medium (use -f to force it).
 175ETEXI
 176
 177    {
 178        .name       = "drive_del",
 179        .args_type  = "id:s",
 180        .params     = "device",
 181        .help       = "remove host block device",
 182        .user_print = monitor_user_noop,
 183        .mhandler.cmd_new = do_drive_del,
 184    },
 185
 186STEXI
 187@item drive_del @var{device}
 188@findex drive_del
 189Remove host block device.  The result is that guest generated IO is no longer
 190submitted against the host device underlying the disk.  Once a drive has
 191been deleted, the QEMU Block layer returns -EIO which results in IO
 192errors in the guest for applications that are reading/writing to the device.
 193These errors are always reported to the guest, regardless of the drive's error
 194actions (drive options rerror, werror).
 195ETEXI
 196
 197    {
 198        .name       = "change",
 199        .args_type  = "device:B,target:F,arg:s?",
 200        .params     = "device filename [format]",
 201        .help       = "change a removable medium, optional format",
 202        .mhandler.cmd = hmp_change,
 203    },
 204
 205STEXI
 206@item change @var{device} @var{setting}
 207@findex change
 208
 209Change the configuration of a device.
 210
 211@table @option
 212@item change @var{diskdevice} @var{filename} [@var{format}]
 213Change the medium for a removable disk device to point to @var{filename}. eg
 214
 215@example
 216(qemu) change ide1-cd0 /path/to/some.iso
 217@end example
 218
 219@var{format} is optional.
 220
 221@item change vnc @var{display},@var{options}
 222Change the configuration of the VNC server. The valid syntax for @var{display}
 223and @var{options} are described at @ref{sec_invocation}. eg
 224
 225@example
 226(qemu) change vnc localhost:1
 227@end example
 228
 229@item change vnc password [@var{password}]
 230
 231Change the password associated with the VNC server. If the new password is not
 232supplied, the monitor will prompt for it to be entered. VNC passwords are only
 233significant up to 8 letters. eg
 234
 235@example
 236(qemu) change vnc password
 237Password: ********
 238@end example
 239
 240@end table
 241ETEXI
 242
 243    {
 244        .name       = "screendump",
 245        .args_type  = "filename:F",
 246        .params     = "filename",
 247        .help       = "save screen into PPM image 'filename'",
 248        .mhandler.cmd = hmp_screen_dump,
 249    },
 250
 251STEXI
 252@item screendump @var{filename}
 253@findex screendump
 254Save screen into PPM image @var{filename}.
 255ETEXI
 256
 257    {
 258        .name       = "logfile",
 259        .args_type  = "filename:F",
 260        .params     = "filename",
 261        .help       = "output logs to 'filename'",
 262        .mhandler.cmd = do_logfile,
 263    },
 264
 265STEXI
 266@item logfile @var{filename}
 267@findex logfile
 268Output logs to @var{filename}.
 269ETEXI
 270
 271    {
 272        .name       = "trace-event",
 273        .args_type  = "name:s,option:b",
 274        .params     = "name on|off",
 275        .help       = "changes status of a specific trace event",
 276        .mhandler.cmd = do_trace_event_set_state,
 277    },
 278
 279STEXI
 280@item trace-event
 281@findex trace-event
 282changes status of a trace event
 283ETEXI
 284
 285#if defined(CONFIG_TRACE_SIMPLE)
 286    {
 287        .name       = "trace-file",
 288        .args_type  = "op:s?,arg:F?",
 289        .params     = "on|off|flush|set [arg]",
 290        .help       = "open, close, or flush trace file, or set a new file name",
 291        .mhandler.cmd = do_trace_file,
 292    },
 293
 294STEXI
 295@item trace-file on|off|flush
 296@findex trace-file
 297Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
 298ETEXI
 299#endif
 300
 301    {
 302        .name       = "log",
 303        .args_type  = "items:s",
 304        .params     = "item1[,...]",
 305        .help       = "activate logging of the specified items",
 306        .mhandler.cmd = do_log,
 307    },
 308
 309STEXI
 310@item log @var{item1}[,...]
 311@findex log
 312Activate logging of the specified items.
 313ETEXI
 314
 315    {
 316        .name       = "savevm",
 317        .args_type  = "name:s?",
 318        .params     = "[tag|id]",
 319        .help       = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
 320        .mhandler.cmd = do_savevm,
 321    },
 322
 323STEXI
 324@item savevm [@var{tag}|@var{id}]
 325@findex savevm
 326Create a snapshot of the whole virtual machine. If @var{tag} is
 327provided, it is used as human readable identifier. If there is already
 328a snapshot with the same tag or ID, it is replaced. More info at
 329@ref{vm_snapshots}.
 330ETEXI
 331
 332    {
 333        .name       = "loadvm",
 334        .args_type  = "name:s",
 335        .params     = "tag|id",
 336        .help       = "restore a VM snapshot from its tag or id",
 337        .mhandler.cmd = do_loadvm,
 338    },
 339
 340STEXI
 341@item loadvm @var{tag}|@var{id}
 342@findex loadvm
 343Set the whole virtual machine to the snapshot identified by the tag
 344@var{tag} or the unique snapshot ID @var{id}.
 345ETEXI
 346
 347    {
 348        .name       = "delvm",
 349        .args_type  = "name:s",
 350        .params     = "tag|id",
 351        .help       = "delete a VM snapshot from its tag or id",
 352        .mhandler.cmd = do_delvm,
 353    },
 354
 355STEXI
 356@item delvm @var{tag}|@var{id}
 357@findex delvm
 358Delete the snapshot identified by @var{tag} or @var{id}.
 359ETEXI
 360
 361    {
 362        .name       = "singlestep",
 363        .args_type  = "option:s?",
 364        .params     = "[on|off]",
 365        .help       = "run emulation in singlestep mode or switch to normal mode",
 366        .mhandler.cmd = do_singlestep,
 367    },
 368
 369STEXI
 370@item singlestep [off]
 371@findex singlestep
 372Run the emulation in single step mode.
 373If called with option off, the emulation returns to normal mode.
 374ETEXI
 375
 376    {
 377        .name       = "stop",
 378        .args_type  = "",
 379        .params     = "",
 380        .help       = "stop emulation",
 381        .mhandler.cmd = hmp_stop,
 382    },
 383
 384STEXI
 385@item stop
 386@findex stop
 387Stop emulation.
 388ETEXI
 389
 390    {
 391        .name       = "c|cont",
 392        .args_type  = "",
 393        .params     = "",
 394        .help       = "resume emulation",
 395        .mhandler.cmd = hmp_cont,
 396    },
 397
 398STEXI
 399@item c or cont
 400@findex cont
 401Resume emulation.
 402ETEXI
 403
 404    {
 405        .name       = "system_wakeup",
 406        .args_type  = "",
 407        .params     = "",
 408        .help       = "wakeup guest from suspend",
 409        .mhandler.cmd = hmp_system_wakeup,
 410    },
 411
 412STEXI
 413@item system_wakeup
 414@findex system_wakeup
 415Wakeup guest from suspend.
 416ETEXI
 417
 418    {
 419        .name       = "gdbserver",
 420        .args_type  = "device:s?",
 421        .params     = "[device]",
 422        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 423        .mhandler.cmd = do_gdbserver,
 424    },
 425
 426STEXI
 427@item gdbserver [@var{port}]
 428@findex gdbserver
 429Start gdbserver session (default @var{port}=1234)
 430ETEXI
 431
 432    {
 433        .name       = "x",
 434        .args_type  = "fmt:/,addr:l",
 435        .params     = "/fmt addr",
 436        .help       = "virtual memory dump starting at 'addr'",
 437        .mhandler.cmd = do_memory_dump,
 438    },
 439
 440STEXI
 441@item x/fmt @var{addr}
 442@findex x
 443Virtual memory dump starting at @var{addr}.
 444ETEXI
 445
 446    {
 447        .name       = "xp",
 448        .args_type  = "fmt:/,addr:l",
 449        .params     = "/fmt addr",
 450        .help       = "physical memory dump starting at 'addr'",
 451        .mhandler.cmd = do_physical_memory_dump,
 452    },
 453
 454STEXI
 455@item xp /@var{fmt} @var{addr}
 456@findex xp
 457Physical memory dump starting at @var{addr}.
 458
 459@var{fmt} is a format which tells the command how to format the
 460data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
 461
 462@table @var
 463@item count
 464is the number of items to be dumped.
 465
 466@item format
 467can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 468c (char) or i (asm instruction).
 469
 470@item size
 471can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 472@code{h} or @code{w} can be specified with the @code{i} format to
 473respectively select 16 or 32 bit code instruction size.
 474
 475@end table
 476
 477Examples:
 478@itemize
 479@item
 480Dump 10 instructions at the current instruction pointer:
 481@example
 482(qemu) x/10i $eip
 4830x90107063:  ret
 4840x90107064:  sti
 4850x90107065:  lea    0x0(%esi,1),%esi
 4860x90107069:  lea    0x0(%edi,1),%edi
 4870x90107070:  ret
 4880x90107071:  jmp    0x90107080
 4890x90107073:  nop
 4900x90107074:  nop
 4910x90107075:  nop
 4920x90107076:  nop
 493@end example
 494
 495@item
 496Dump 80 16 bit values at the start of the video memory.
 497@smallexample
 498(qemu) xp/80hx 0xb8000
 4990x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 5000x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 5010x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 5020x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 5030x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 5040x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 5050x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5060x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5070x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5080x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 509@end smallexample
 510@end itemize
 511ETEXI
 512
 513    {
 514        .name       = "p|print",
 515        .args_type  = "fmt:/,val:l",
 516        .params     = "/fmt expr",
 517        .help       = "print expression value (use $reg for CPU register access)",
 518        .mhandler.cmd = do_print,
 519    },
 520
 521STEXI
 522@item p or print/@var{fmt} @var{expr}
 523@findex print
 524
 525Print expression value. Only the @var{format} part of @var{fmt} is
 526used.
 527ETEXI
 528
 529    {
 530        .name       = "i",
 531        .args_type  = "fmt:/,addr:i,index:i.",
 532        .params     = "/fmt addr",
 533        .help       = "I/O port read",
 534        .mhandler.cmd = do_ioport_read,
 535    },
 536
 537STEXI
 538Read I/O port.
 539ETEXI
 540
 541    {
 542        .name       = "o",
 543        .args_type  = "fmt:/,addr:i,val:i",
 544        .params     = "/fmt addr value",
 545        .help       = "I/O port write",
 546        .mhandler.cmd = do_ioport_write,
 547    },
 548
 549STEXI
 550Write to I/O port.
 551ETEXI
 552
 553    {
 554        .name       = "sendkey",
 555        .args_type  = "keys:s,hold-time:i?",
 556        .params     = "keys [hold_ms]",
 557        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 558        .mhandler.cmd = hmp_send_key,
 559    },
 560
 561STEXI
 562@item sendkey @var{keys}
 563@findex sendkey
 564
 565Send @var{keys} to the guest. @var{keys} could be the name of the
 566key or the raw value in hexadecimal format. Use @code{-} to press
 567several keys simultaneously. Example:
 568@example
 569sendkey ctrl-alt-f1
 570@end example
 571
 572This command is useful to send keys that your graphical user interface
 573intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
 574ETEXI
 575
 576    {
 577        .name       = "system_reset",
 578        .args_type  = "",
 579        .params     = "",
 580        .help       = "reset the system",
 581        .mhandler.cmd = hmp_system_reset,
 582    },
 583
 584STEXI
 585@item system_reset
 586@findex system_reset
 587
 588Reset the system.
 589ETEXI
 590
 591    {
 592        .name       = "system_powerdown",
 593        .args_type  = "",
 594        .params     = "",
 595        .help       = "send system power down event",
 596        .mhandler.cmd = hmp_system_powerdown,
 597    },
 598
 599STEXI
 600@item system_powerdown
 601@findex system_powerdown
 602
 603Power down the system (if supported).
 604ETEXI
 605
 606    {
 607        .name       = "sum",
 608        .args_type  = "start:i,size:i",
 609        .params     = "addr size",
 610        .help       = "compute the checksum of a memory region",
 611        .mhandler.cmd = do_sum,
 612    },
 613
 614STEXI
 615@item sum @var{addr} @var{size}
 616@findex sum
 617
 618Compute the checksum of a memory region.
 619ETEXI
 620
 621    {
 622        .name       = "usb_add",
 623        .args_type  = "devname:s",
 624        .params     = "device",
 625        .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
 626        .mhandler.cmd = do_usb_add,
 627    },
 628
 629STEXI
 630@item usb_add @var{devname}
 631@findex usb_add
 632
 633Add the USB device @var{devname}.  For details of available devices see
 634@ref{usb_devices}
 635ETEXI
 636
 637    {
 638        .name       = "usb_del",
 639        .args_type  = "devname:s",
 640        .params     = "device",
 641        .help       = "remove USB device 'bus.addr'",
 642        .mhandler.cmd = do_usb_del,
 643    },
 644
 645STEXI
 646@item usb_del @var{devname}
 647@findex usb_del
 648
 649Remove the USB device @var{devname} from the QEMU virtual USB
 650hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
 651command @code{info usb} to see the devices you can remove.
 652ETEXI
 653
 654    {
 655        .name       = "device_add",
 656        .args_type  = "device:O",
 657        .params     = "driver[,prop=value][,...]",
 658        .help       = "add device, like -device on the command line",
 659        .user_print = monitor_user_noop,
 660        .mhandler.cmd_new = do_device_add,
 661    },
 662
 663STEXI
 664@item device_add @var{config}
 665@findex device_add
 666
 667Add device.
 668ETEXI
 669
 670    {
 671        .name       = "device_del",
 672        .args_type  = "id:s",
 673        .params     = "device",
 674        .help       = "remove device",
 675        .mhandler.cmd = hmp_device_del,
 676    },
 677
 678STEXI
 679@item device_del @var{id}
 680@findex device_del
 681
 682Remove device @var{id}.
 683ETEXI
 684
 685    {
 686        .name       = "cpu",
 687        .args_type  = "index:i",
 688        .params     = "index",
 689        .help       = "set the default CPU",
 690        .mhandler.cmd = hmp_cpu,
 691    },
 692
 693STEXI
 694@item cpu @var{index}
 695@findex cpu
 696Set the default CPU.
 697ETEXI
 698
 699    {
 700        .name       = "mouse_move",
 701        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 702        .params     = "dx dy [dz]",
 703        .help       = "send mouse move events",
 704        .mhandler.cmd = do_mouse_move,
 705    },
 706
 707STEXI
 708@item mouse_move @var{dx} @var{dy} [@var{dz}]
 709@findex mouse_move
 710Move the active mouse to the specified coordinates @var{dx} @var{dy}
 711with optional scroll axis @var{dz}.
 712ETEXI
 713
 714    {
 715        .name       = "mouse_button",
 716        .args_type  = "button_state:i",
 717        .params     = "state",
 718        .help       = "change mouse button state (1=L, 2=M, 4=R)",
 719        .mhandler.cmd = do_mouse_button,
 720    },
 721
 722STEXI
 723@item mouse_button @var{val}
 724@findex mouse_button
 725Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
 726ETEXI
 727
 728    {
 729        .name       = "mouse_set",
 730        .args_type  = "index:i",
 731        .params     = "index",
 732        .help       = "set which mouse device receives events",
 733        .mhandler.cmd = do_mouse_set,
 734    },
 735
 736STEXI
 737@item mouse_set @var{index}
 738@findex mouse_set
 739Set which mouse device receives events at given @var{index}, index
 740can be obtained with
 741@example
 742info mice
 743@end example
 744ETEXI
 745
 746    {
 747        .name       = "wavcapture",
 748        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
 749        .params     = "path [frequency [bits [channels]]]",
 750        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 751        .mhandler.cmd = do_wav_capture,
 752    },
 753STEXI
 754@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
 755@findex wavcapture
 756Capture audio into @var{filename}. Using sample rate @var{frequency}
 757bits per sample @var{bits} and number of channels @var{channels}.
 758
 759Defaults:
 760@itemize @minus
 761@item Sample rate = 44100 Hz - CD quality
 762@item Bits = 16
 763@item Number of channels = 2 - Stereo
 764@end itemize
 765ETEXI
 766
 767    {
 768        .name       = "stopcapture",
 769        .args_type  = "n:i",
 770        .params     = "capture index",
 771        .help       = "stop capture",
 772        .mhandler.cmd = do_stop_capture,
 773    },
 774STEXI
 775@item stopcapture @var{index}
 776@findex stopcapture
 777Stop capture with a given @var{index}, index can be obtained with
 778@example
 779info capture
 780@end example
 781ETEXI
 782
 783    {
 784        .name       = "memsave",
 785        .args_type  = "val:l,size:i,filename:s",
 786        .params     = "addr size file",
 787        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 788        .mhandler.cmd = hmp_memsave,
 789    },
 790
 791STEXI
 792@item memsave @var{addr} @var{size} @var{file}
 793@findex memsave
 794save to disk virtual memory dump starting at @var{addr} of size @var{size}.
 795ETEXI
 796
 797    {
 798        .name       = "pmemsave",
 799        .args_type  = "val:l,size:i,filename:s",
 800        .params     = "addr size file",
 801        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 802        .mhandler.cmd = hmp_pmemsave,
 803    },
 804
 805STEXI
 806@item pmemsave @var{addr} @var{size} @var{file}
 807@findex pmemsave
 808save to disk physical memory dump starting at @var{addr} of size @var{size}.
 809ETEXI
 810
 811    {
 812        .name       = "boot_set",
 813        .args_type  = "bootdevice:s",
 814        .params     = "bootdevice",
 815        .help       = "define new values for the boot device list",
 816        .mhandler.cmd = do_boot_set,
 817    },
 818
 819STEXI
 820@item boot_set @var{bootdevicelist}
 821@findex boot_set
 822
 823Define new values for the boot device list. Those values will override
 824the values specified on the command line through the @code{-boot} option.
 825
 826The values that can be specified here depend on the machine type, but are
 827the same that can be specified in the @code{-boot} command line option.
 828ETEXI
 829
 830#if defined(TARGET_I386) || defined(TARGET_S390X)
 831    {
 832        .name       = "nmi",
 833        .args_type  = "",
 834        .params     = "",
 835        .help       = "inject an NMI on all guest's CPUs",
 836        .mhandler.cmd = hmp_inject_nmi,
 837    },
 838#endif
 839STEXI
 840@item nmi @var{cpu}
 841@findex nmi
 842Inject an NMI (x86) or RESTART (s390x) on the given CPU.
 843
 844ETEXI
 845
 846    {
 847        .name       = "ringbuf_write",
 848        .args_type  = "device:s,data:s",
 849        .params     = "device data",
 850        .help       = "Write to a ring buffer character device",
 851        .mhandler.cmd = hmp_ringbuf_write,
 852    },
 853
 854STEXI
 855@item ringbuf_write @var{device} @var{data}
 856@findex ringbuf_write
 857Write @var{data} to ring buffer character device @var{device}.
 858@var{data} must be a UTF-8 string.
 859
 860ETEXI
 861
 862    {
 863        .name       = "ringbuf_read",
 864        .args_type  = "device:s,size:i",
 865        .params     = "device size",
 866        .help       = "Read from a ring buffer character device",
 867        .mhandler.cmd = hmp_ringbuf_read,
 868    },
 869
 870STEXI
 871@item ringbuf_read @var{device}
 872@findex ringbuf_read
 873Read and print up to @var{size} bytes from ring buffer character
 874device @var{device}.
 875Certain non-printable characters are printed \uXXXX, where XXXX is the
 876character code in hexadecimal.  Character \ is printed \\.
 877Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 878NUL characters, after the ring buffer lost data, and when reading
 879stops because the size limit is reached.
 880
 881ETEXI
 882
 883    {
 884        .name       = "migrate",
 885        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
 886        .params     = "[-d] [-b] [-i] uri",
 887        .help       = "migrate to URI (using -d to not wait for completion)"
 888                      "\n\t\t\t -b for migration without shared storage with"
 889                      " full copy of disk\n\t\t\t -i for migration without "
 890                      "shared storage with incremental copy of disk "
 891                      "(base image shared between src and destination)",
 892        .mhandler.cmd = hmp_migrate,
 893    },
 894
 895
 896STEXI
 897@item migrate [-d] [-b] [-i] @var{uri}
 898@findex migrate
 899Migrate to @var{uri} (using -d to not wait for completion).
 900        -b for migration with full copy of disk
 901        -i for migration with incremental copy of disk (base image is shared)
 902ETEXI
 903
 904    {
 905        .name       = "migrate_cancel",
 906        .args_type  = "",
 907        .params     = "",
 908        .help       = "cancel the current VM migration",
 909        .mhandler.cmd = hmp_migrate_cancel,
 910    },
 911
 912STEXI
 913@item migrate_cancel
 914@findex migrate_cancel
 915Cancel the current VM migration.
 916
 917ETEXI
 918
 919    {
 920        .name       = "migrate_set_cache_size",
 921        .args_type  = "value:o",
 922        .params     = "value",
 923        .help       = "set cache size (in bytes) for XBZRLE migrations,"
 924                      "the cache size will be rounded down to the nearest "
 925                      "power of 2.\n"
 926                      "The cache size affects the number of cache misses."
 927                      "In case of a high cache miss ratio you need to increase"
 928                      " the cache size",
 929        .mhandler.cmd = hmp_migrate_set_cache_size,
 930    },
 931
 932STEXI
 933@item migrate_set_cache_size @var{value}
 934@findex migrate_set_cache_size
 935Set cache size to @var{value} (in bytes) for xbzrle migrations.
 936ETEXI
 937
 938    {
 939        .name       = "migrate_set_speed",
 940        .args_type  = "value:o",
 941        .params     = "value",
 942        .help       = "set maximum speed (in bytes) for migrations. "
 943        "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
 944        .mhandler.cmd = hmp_migrate_set_speed,
 945    },
 946
 947STEXI
 948@item migrate_set_speed @var{value}
 949@findex migrate_set_speed
 950Set maximum speed to @var{value} (in bytes) for migrations.
 951ETEXI
 952
 953    {
 954        .name       = "migrate_set_downtime",
 955        .args_type  = "value:T",
 956        .params     = "value",
 957        .help       = "set maximum tolerated downtime (in seconds) for migrations",
 958        .mhandler.cmd = hmp_migrate_set_downtime,
 959    },
 960
 961STEXI
 962@item migrate_set_downtime @var{second}
 963@findex migrate_set_downtime
 964Set maximum tolerated downtime (in seconds) for migration.
 965ETEXI
 966
 967    {
 968        .name       = "migrate_set_capability",
 969        .args_type  = "capability:s,state:b",
 970        .params     = "capability state",
 971        .help       = "Enable/Disable the usage of a capability for migration",
 972        .mhandler.cmd = hmp_migrate_set_capability,
 973    },
 974
 975STEXI
 976@item migrate_set_capability @var{capability} @var{state}
 977@findex migrate_set_capability
 978Enable/Disable the usage of a capability @var{capability} for migration.
 979ETEXI
 980
 981    {
 982        .name       = "client_migrate_info",
 983        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
 984        .params     = "protocol hostname port tls-port cert-subject",
 985        .help       = "send migration info to spice/vnc client",
 986        .user_print = monitor_user_noop,
 987        .mhandler.cmd_async = client_migrate_info,
 988        .flags      = MONITOR_CMD_ASYNC,
 989    },
 990
 991STEXI
 992@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
 993@findex client_migrate_info
 994Set the spice/vnc connection info for the migration target.  The spice/vnc
 995server will ask the spice/vnc client to automatically reconnect using the
 996new parameters (if specified) once the vm migration finished successfully.
 997ETEXI
 998
 999    {
1000        .name       = "dump-guest-memory",
1001        .args_type  = "paging:-p,filename:F,begin:i?,length:i?",
1002        .params     = "[-p] filename [begin] [length]",
1003        .help       = "dump guest memory to file"
1004                      "\n\t\t\t begin(optional): the starting physical address"
1005                      "\n\t\t\t length(optional): the memory size, in bytes",
1006        .mhandler.cmd = hmp_dump_guest_memory,
1007    },
1008
1009
1010STEXI
1011@item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
1012@findex dump-guest-memory
1013Dump guest memory to @var{protocol}. The file can be processed with crash or
1014gdb.
1015  filename: dump file name
1016    paging: do paging to get guest's memory mapping
1017     begin: the starting physical address. It's optional, and should be
1018            specified with length together.
1019    length: the memory size, in bytes. It's optional, and should be specified
1020            with begin together.
1021ETEXI
1022
1023    {
1024        .name       = "snapshot_blkdev",
1025        .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1026        .params     = "[-n] device [new-image-file] [format]",
1027        .help       = "initiates a live snapshot\n\t\t\t"
1028                      "of device. If a new image file is specified, the\n\t\t\t"
1029                      "new image file will become the new root image.\n\t\t\t"
1030                      "If format is specified, the snapshot file will\n\t\t\t"
1031                      "be created in that format.\n\t\t\t"
1032                      "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1033                      "to reuse the image found in new-image-file, instead of\n\t\t\t"
1034                      "recreating it from scratch.",
1035        .mhandler.cmd = hmp_snapshot_blkdev,
1036    },
1037
1038STEXI
1039@item snapshot_blkdev
1040@findex snapshot_blkdev
1041Snapshot device, using snapshot file as target if provided
1042ETEXI
1043
1044    {
1045        .name       = "snapshot_blkdev_internal",
1046        .args_type  = "device:B,name:s",
1047        .params     = "device name",
1048        .help       = "take an internal snapshot of device.\n\t\t\t"
1049                      "The format of the image used by device must\n\t\t\t"
1050                      "support it, such as qcow2.\n\t\t\t",
1051        .mhandler.cmd = hmp_snapshot_blkdev_internal,
1052    },
1053
1054STEXI
1055@item snapshot_blkdev_internal
1056@findex snapshot_blkdev_internal
1057Take an internal snapshot on device if it support
1058ETEXI
1059
1060    {
1061        .name       = "snapshot_delete_blkdev_internal",
1062        .args_type  = "device:B,name:s,id:s?",
1063        .params     = "device name [id]",
1064        .help       = "delete an internal snapshot of device.\n\t\t\t"
1065                      "If id is specified, qemu will try delete\n\t\t\t"
1066                      "the snapshot matching both id and name.\n\t\t\t"
1067                      "The format of the image used by device must\n\t\t\t"
1068                      "support it, such as qcow2.\n\t\t\t",
1069        .mhandler.cmd = hmp_snapshot_delete_blkdev_internal,
1070    },
1071
1072STEXI
1073@item snapshot_delete_blkdev_internal
1074@findex snapshot_delete_blkdev_internal
1075Delete an internal snapshot on device if it support
1076ETEXI
1077
1078    {
1079        .name       = "drive_mirror",
1080        .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1081        .params     = "[-n] [-f] device target [format]",
1082        .help       = "initiates live storage\n\t\t\t"
1083                      "migration for a device. The device's contents are\n\t\t\t"
1084                      "copied to the new image file, including data that\n\t\t\t"
1085                      "is written after the command is started.\n\t\t\t"
1086                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1087                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1088                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1089                      "so that the result does not need a backing file.\n\t\t\t",
1090        .mhandler.cmd = hmp_drive_mirror,
1091    },
1092STEXI
1093@item drive_mirror
1094@findex drive_mirror
1095Start mirroring a block device's writes to a new destination,
1096using the specified target.
1097ETEXI
1098
1099    {
1100        .name       = "drive_backup",
1101        .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1102        .params     = "[-n] [-f] device target [format]",
1103        .help       = "initiates a point-in-time\n\t\t\t"
1104                      "copy for a device. The device's contents are\n\t\t\t"
1105                      "copied to the new image file, excluding data that\n\t\t\t"
1106                      "is written after the command is started.\n\t\t\t"
1107                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1108                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1109                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1110                      "so that the result does not need a backing file.\n\t\t\t",
1111        .mhandler.cmd = hmp_drive_backup,
1112    },
1113STEXI
1114@item drive_backup
1115@findex drive_backup
1116Start a point-in-time copy of a block device to a specificed target.
1117ETEXI
1118
1119    {
1120        .name       = "drive_add",
1121        .args_type  = "pci_addr:s,opts:s",
1122        .params     = "[[<domain>:]<bus>:]<slot>\n"
1123                      "[file=file][,if=type][,bus=n]\n"
1124                      "[,unit=m][,media=d][,index=i]\n"
1125                      "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1126                      "[,snapshot=on|off][,cache=on|off]\n"
1127                      "[,readonly=on|off][,copy-on-read=on|off]",
1128        .help       = "add drive to PCI storage controller",
1129        .mhandler.cmd = drive_hot_add,
1130    },
1131
1132STEXI
1133@item drive_add
1134@findex drive_add
1135Add drive to PCI storage controller.
1136ETEXI
1137
1138#if defined(CONFIG_PCI_HOTPLUG_OLD)
1139    {
1140        .name       = "pci_add",
1141        .args_type  = "pci_addr:s,type:s,opts:s?",
1142        .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
1143        .help       = "hot-add PCI device",
1144        .mhandler.cmd = pci_device_hot_add,
1145    },
1146#endif
1147
1148STEXI
1149@item pci_add
1150@findex pci_add
1151Hot-add PCI device.
1152ETEXI
1153
1154#if defined(CONFIG_PCI_HOTPLUG_OLD)
1155    {
1156        .name       = "pci_del",
1157        .args_type  = "pci_addr:s",
1158        .params     = "[[<domain>:]<bus>:]<slot>",
1159        .help       = "hot remove PCI device",
1160        .mhandler.cmd = do_pci_device_hot_remove,
1161    },
1162#endif
1163
1164STEXI
1165@item pci_del
1166@findex pci_del
1167Hot remove PCI device.
1168ETEXI
1169
1170    {
1171        .name       = "pcie_aer_inject_error",
1172        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1173                      "id:s,error_status:s,"
1174                      "header0:i?,header1:i?,header2:i?,header3:i?,"
1175                      "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1176        .params     = "[-a] [-c] id "
1177                      "<error_status> [<tlp header> [<tlp header prefix>]]",
1178        .help       = "inject pcie aer error\n\t\t\t"
1179                      " -a for advisory non fatal error\n\t\t\t"
1180                      " -c for correctable error\n\t\t\t"
1181                      "<id> = qdev device id\n\t\t\t"
1182                      "<error_status> = error string or 32bit\n\t\t\t"
1183                      "<tlb header> = 32bit x 4\n\t\t\t"
1184                      "<tlb header prefix> = 32bit x 4",
1185        .user_print  = pcie_aer_inject_error_print,
1186        .mhandler.cmd_new = do_pcie_aer_inject_error,
1187    },
1188
1189STEXI
1190@item pcie_aer_inject_error
1191@findex pcie_aer_inject_error
1192Inject PCIe AER error
1193ETEXI
1194
1195    {
1196        .name       = "host_net_add",
1197        .args_type  = "device:s,opts:s?",
1198        .params     = "tap|user|socket|vde|netmap|dump [options]",
1199        .help       = "add host VLAN client",
1200        .mhandler.cmd = net_host_device_add,
1201    },
1202
1203STEXI
1204@item host_net_add
1205@findex host_net_add
1206Add host VLAN client.
1207ETEXI
1208
1209    {
1210        .name       = "host_net_remove",
1211        .args_type  = "vlan_id:i,device:s",
1212        .params     = "vlan_id name",
1213        .help       = "remove host VLAN client",
1214        .mhandler.cmd = net_host_device_remove,
1215    },
1216
1217STEXI
1218@item host_net_remove
1219@findex host_net_remove
1220Remove host VLAN client.
1221ETEXI
1222
1223    {
1224        .name       = "netdev_add",
1225        .args_type  = "netdev:O",
1226        .params     = "[user|tap|socket|hubport|netmap],id=str[,prop=value][,...]",
1227        .help       = "add host network device",
1228        .mhandler.cmd = hmp_netdev_add,
1229    },
1230
1231STEXI
1232@item netdev_add
1233@findex netdev_add
1234Add host network device.
1235ETEXI
1236
1237    {
1238        .name       = "netdev_del",
1239        .args_type  = "id:s",
1240        .params     = "id",
1241        .help       = "remove host network device",
1242        .mhandler.cmd = hmp_netdev_del,
1243    },
1244
1245STEXI
1246@item netdev_del
1247@findex netdev_del
1248Remove host network device.
1249ETEXI
1250
1251    {
1252        .name       = "object_add",
1253        .args_type  = "object:O",
1254        .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1255        .help       = "create QOM object",
1256        .mhandler.cmd = hmp_object_add,
1257    },
1258
1259STEXI
1260@item object_add
1261@findex object_add
1262Create QOM object.
1263ETEXI
1264
1265    {
1266        .name       = "object_del",
1267        .args_type  = "id:s",
1268        .params     = "id",
1269        .help       = "destroy QOM object",
1270        .mhandler.cmd = hmp_object_del,
1271    },
1272
1273STEXI
1274@item object_del
1275@findex object_del
1276Destroy QOM object.
1277ETEXI
1278
1279#ifdef CONFIG_SLIRP
1280    {
1281        .name       = "hostfwd_add",
1282        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1283        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1284        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1285        .mhandler.cmd = net_slirp_hostfwd_add,
1286    },
1287#endif
1288STEXI
1289@item hostfwd_add
1290@findex hostfwd_add
1291Redirect TCP or UDP connections from host to guest (requires -net user).
1292ETEXI
1293
1294#ifdef CONFIG_SLIRP
1295    {
1296        .name       = "hostfwd_remove",
1297        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1298        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1299        .help       = "remove host-to-guest TCP or UDP redirection",
1300        .mhandler.cmd = net_slirp_hostfwd_remove,
1301    },
1302
1303#endif
1304STEXI
1305@item hostfwd_remove
1306@findex hostfwd_remove
1307Remove host-to-guest TCP or UDP redirection.
1308ETEXI
1309
1310    {
1311        .name       = "balloon",
1312        .args_type  = "value:M",
1313        .params     = "target",
1314        .help       = "request VM to change its memory allocation (in MB)",
1315        .mhandler.cmd = hmp_balloon,
1316    },
1317
1318STEXI
1319@item balloon @var{value}
1320@findex balloon
1321Request VM to change its memory allocation to @var{value} (in MB).
1322ETEXI
1323
1324    {
1325        .name       = "set_link",
1326        .args_type  = "name:s,up:b",
1327        .params     = "name on|off",
1328        .help       = "change the link status of a network adapter",
1329        .mhandler.cmd = hmp_set_link,
1330    },
1331
1332STEXI
1333@item set_link @var{name} [on|off]
1334@findex set_link
1335Switch link @var{name} on (i.e. up) or off (i.e. down).
1336ETEXI
1337
1338    {
1339        .name       = "watchdog_action",
1340        .args_type  = "action:s",
1341        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1342        .help       = "change watchdog action",
1343        .mhandler.cmd = do_watchdog_action,
1344    },
1345
1346STEXI
1347@item watchdog_action
1348@findex watchdog_action
1349Change watchdog action.
1350ETEXI
1351
1352    {
1353        .name       = "acl_show",
1354        .args_type  = "aclname:s",
1355        .params     = "aclname",
1356        .help       = "list rules in the access control list",
1357        .mhandler.cmd = do_acl_show,
1358    },
1359
1360STEXI
1361@item acl_show @var{aclname}
1362@findex acl_show
1363List all the matching rules in the access control list, and the default
1364policy. There are currently two named access control lists,
1365@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1366certificate distinguished name, and SASL username respectively.
1367ETEXI
1368
1369    {
1370        .name       = "acl_policy",
1371        .args_type  = "aclname:s,policy:s",
1372        .params     = "aclname allow|deny",
1373        .help       = "set default access control list policy",
1374        .mhandler.cmd = do_acl_policy,
1375    },
1376
1377STEXI
1378@item acl_policy @var{aclname} @code{allow|deny}
1379@findex acl_policy
1380Set the default access control list policy, used in the event that
1381none of the explicit rules match. The default policy at startup is
1382always @code{deny}.
1383ETEXI
1384
1385    {
1386        .name       = "acl_add",
1387        .args_type  = "aclname:s,match:s,policy:s,index:i?",
1388        .params     = "aclname match allow|deny [index]",
1389        .help       = "add a match rule to the access control list",
1390        .mhandler.cmd = do_acl_add,
1391    },
1392
1393STEXI
1394@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1395@findex acl_add
1396Add a match rule to the access control list, allowing or denying access.
1397The match will normally be an exact username or x509 distinguished name,
1398but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1399allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1400normally be appended to the end of the ACL, but can be inserted
1401earlier in the list if the optional @var{index} parameter is supplied.
1402ETEXI
1403
1404    {
1405        .name       = "acl_remove",
1406        .args_type  = "aclname:s,match:s",
1407        .params     = "aclname match",
1408        .help       = "remove a match rule from the access control list",
1409        .mhandler.cmd = do_acl_remove,
1410    },
1411
1412STEXI
1413@item acl_remove @var{aclname} @var{match}
1414@findex acl_remove
1415Remove the specified match rule from the access control list.
1416ETEXI
1417
1418    {
1419        .name       = "acl_reset",
1420        .args_type  = "aclname:s",
1421        .params     = "aclname",
1422        .help       = "reset the access control list",
1423        .mhandler.cmd = do_acl_reset,
1424    },
1425
1426STEXI
1427@item acl_reset @var{aclname}
1428@findex acl_reset
1429Remove all matches from the access control list, and set the default
1430policy back to @code{deny}.
1431ETEXI
1432
1433    {
1434        .name       = "nbd_server_start",
1435        .args_type  = "all:-a,writable:-w,uri:s",
1436        .params     = "nbd_server_start [-a] [-w] host:port",
1437        .help       = "serve block devices on the given host and port",
1438        .mhandler.cmd = hmp_nbd_server_start,
1439    },
1440STEXI
1441@item nbd_server_start @var{host}:@var{port}
1442@findex nbd_server_start
1443Start an NBD server on the given host and/or port.  If the @option{-a}
1444option is included, all of the virtual machine's block devices that
1445have an inserted media on them are automatically exported; in this case,
1446the @option{-w} option makes the devices writable too.
1447ETEXI
1448
1449    {
1450        .name       = "nbd_server_add",
1451        .args_type  = "writable:-w,device:B",
1452        .params     = "nbd_server_add [-w] device",
1453        .help       = "export a block device via NBD",
1454        .mhandler.cmd = hmp_nbd_server_add,
1455    },
1456STEXI
1457@item nbd_server_add @var{device}
1458@findex nbd_server_add
1459Export a block device through QEMU's NBD server, which must be started
1460beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
1461exported device writable too.
1462ETEXI
1463
1464    {
1465        .name       = "nbd_server_stop",
1466        .args_type  = "",
1467        .params     = "nbd_server_stop",
1468        .help       = "stop serving block devices using the NBD protocol",
1469        .mhandler.cmd = hmp_nbd_server_stop,
1470    },
1471STEXI
1472@item nbd_server_stop
1473@findex nbd_server_stop
1474Stop the QEMU embedded NBD server.
1475ETEXI
1476
1477
1478#if defined(TARGET_I386)
1479
1480    {
1481        .name       = "mce",
1482        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1483        .params     = "[-b] cpu bank status mcgstatus addr misc",
1484        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1485        .mhandler.cmd = do_inject_mce,
1486    },
1487
1488#endif
1489STEXI
1490@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1491@findex mce (x86)
1492Inject an MCE on the given CPU (x86 only).
1493ETEXI
1494
1495    {
1496        .name       = "getfd",
1497        .args_type  = "fdname:s",
1498        .params     = "getfd name",
1499        .help       = "receive a file descriptor via SCM rights and assign it a name",
1500        .mhandler.cmd = hmp_getfd,
1501    },
1502
1503STEXI
1504@item getfd @var{fdname}
1505@findex getfd
1506If a file descriptor is passed alongside this command using the SCM_RIGHTS
1507mechanism on unix sockets, it is stored using the name @var{fdname} for
1508later use by other monitor commands.
1509ETEXI
1510
1511    {
1512        .name       = "closefd",
1513        .args_type  = "fdname:s",
1514        .params     = "closefd name",
1515        .help       = "close a file descriptor previously passed via SCM rights",
1516        .mhandler.cmd = hmp_closefd,
1517    },
1518
1519STEXI
1520@item closefd @var{fdname}
1521@findex closefd
1522Close the file descriptor previously assigned to @var{fdname} using the
1523@code{getfd} command. This is only needed if the file descriptor was never
1524used by another monitor command.
1525ETEXI
1526
1527    {
1528        .name       = "block_passwd",
1529        .args_type  = "device:B,password:s",
1530        .params     = "block_passwd device password",
1531        .help       = "set the password of encrypted block devices",
1532        .mhandler.cmd = hmp_block_passwd,
1533    },
1534
1535STEXI
1536@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1537@findex block_set_io_throttle
1538Change 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}
1539ETEXI
1540
1541    {
1542        .name       = "block_set_io_throttle",
1543        .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1544        .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1545        .help       = "change I/O throttle limits for a block drive",
1546        .mhandler.cmd = hmp_block_set_io_throttle,
1547    },
1548
1549STEXI
1550@item block_passwd @var{device} @var{password}
1551@findex block_passwd
1552Set the encrypted device @var{device} password to @var{password}
1553ETEXI
1554
1555    {
1556        .name       = "set_password",
1557        .args_type  = "protocol:s,password:s,connected:s?",
1558        .params     = "protocol password action-if-connected",
1559        .help       = "set spice/vnc password",
1560        .mhandler.cmd = hmp_set_password,
1561    },
1562
1563STEXI
1564@item set_password [ vnc | spice ] password [ action-if-connected ]
1565@findex set_password
1566
1567Change spice/vnc password.  Use zero to make the password stay valid
1568forever.  @var{action-if-connected} specifies what should happen in
1569case a connection is established: @var{fail} makes the password change
1570fail.  @var{disconnect} changes the password and disconnects the
1571client.  @var{keep} changes the password and keeps the connection up.
1572@var{keep} is the default.
1573ETEXI
1574
1575    {
1576        .name       = "expire_password",
1577        .args_type  = "protocol:s,time:s",
1578        .params     = "protocol time",
1579        .help       = "set spice/vnc password expire-time",
1580        .mhandler.cmd = hmp_expire_password,
1581    },
1582
1583STEXI
1584@item expire_password [ vnc | spice ] expire-time
1585@findex expire_password
1586
1587Specify when a password for spice/vnc becomes
1588invalid. @var{expire-time} accepts:
1589
1590@table @var
1591@item now
1592Invalidate password instantly.
1593
1594@item never
1595Password stays valid forever.
1596
1597@item +nsec
1598Password stays valid for @var{nsec} seconds starting now.
1599
1600@item nsec
1601Password is invalidated at the given time.  @var{nsec} are the seconds
1602passed since 1970, i.e. unix epoch.
1603
1604@end table
1605ETEXI
1606
1607    {
1608        .name       = "chardev-add",
1609        .args_type  = "args:s",
1610        .params     = "args",
1611        .help       = "add chardev",
1612        .mhandler.cmd = hmp_chardev_add,
1613    },
1614
1615STEXI
1616@item chardev_add args
1617@findex chardev_add
1618
1619chardev_add accepts the same parameters as the -chardev command line switch.
1620
1621ETEXI
1622
1623    {
1624        .name       = "chardev-remove",
1625        .args_type  = "id:s",
1626        .params     = "id",
1627        .help       = "remove chardev",
1628        .mhandler.cmd = hmp_chardev_remove,
1629    },
1630
1631STEXI
1632@item chardev_remove id
1633@findex chardev_remove
1634
1635Removes the chardev @var{id}.
1636
1637ETEXI
1638
1639    {
1640        .name       = "qemu-io",
1641        .args_type  = "device:B,command:s",
1642        .params     = "[device] \"[command]\"",
1643        .help       = "run a qemu-io command on a block device",
1644        .mhandler.cmd = hmp_qemu_io,
1645    },
1646
1647STEXI
1648@item qemu-io @var{device} @var{command}
1649@findex qemu-io
1650
1651Executes a qemu-io command on the given block device.
1652
1653ETEXI
1654
1655    {
1656        .name       = "cpu-add",
1657        .args_type  = "id:i",
1658        .params     = "id",
1659        .help       = "add cpu",
1660        .mhandler.cmd  = hmp_cpu_add,
1661    },
1662
1663STEXI
1664@item cpu-add @var{id}
1665Add CPU with id @var{id}
1666ETEXI
1667
1668    {
1669        .name       = "info",
1670        .args_type  = "item:s?",
1671        .params     = "[subcommand]",
1672        .help       = "show various information about the system state",
1673        .mhandler.cmd = do_info_help,
1674        .sub_table = info_cmds,
1675    },
1676
1677STEXI
1678@item info @var{subcommand}
1679@findex info
1680Show various information about the system state.
1681
1682@table @option
1683@item info version
1684show the version of QEMU
1685@item info network
1686show the various VLANs and the associated devices
1687@item info chardev
1688show the character devices
1689@item info block
1690show the block devices
1691@item info blockstats
1692show block device statistics
1693@item info registers
1694show the cpu registers
1695@item info cpus
1696show infos for each CPU
1697@item info history
1698show the command line history
1699@item info irq
1700show the interrupts statistics (if available)
1701@item info pic
1702show i8259 (PIC) state
1703@item info pci
1704show emulated PCI device info
1705@item info tlb
1706show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1707@item info mem
1708show the active virtual memory mappings (i386 only)
1709@item info jit
1710show dynamic compiler info
1711@item info numa
1712show NUMA information
1713@item info kvm
1714show KVM information
1715@item info usb
1716show USB devices plugged on the virtual USB hub
1717@item info usbhost
1718show all USB host devices
1719@item info profile
1720show profiling information
1721@item info capture
1722show information about active capturing
1723@item info snapshots
1724show list of VM snapshots
1725@item info status
1726show the current VM status (running|paused)
1727@item info pcmcia
1728show guest PCMCIA status
1729@item info mice
1730show which guest mouse is receiving events
1731@item info vnc
1732show the vnc server status
1733@item info name
1734show the current VM name
1735@item info uuid
1736show the current VM UUID
1737@item info cpustats
1738show CPU statistics
1739@item info usernet
1740show user network stack connection states
1741@item info migrate
1742show migration status
1743@item info migrate_capabilities
1744show current migration capabilities
1745@item info migrate_cache_size
1746show current migration XBZRLE cache size
1747@item info balloon
1748show balloon information
1749@item info qtree
1750show device tree
1751@item info qdm
1752show qdev device model list
1753@item info roms
1754show roms
1755@item info tpm
1756show the TPM device
1757@end table
1758ETEXI
1759
1760STEXI
1761@item info trace-events
1762show available trace events and their state
1763ETEXI
1764
1765STEXI
1766@end table
1767ETEXI
1768