hmp-commands.hx

   1 HXCOMM Use DEFHEADING() to define headings in both help text and texi
   2 HXCOMM Text between STEXI and ETEXI are copied to texi version and
   3 HXCOMM discarded from C version
   4 HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
   5 HXCOMM monitor commands
   6 HXCOMM HXCOMM can be used for comments, discarded from both texi and C
   7
   8 STEXI
   9 @table @option
  10 ETEXI
  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
  20 STEXI
  21 @item help or ? [@var{cmd}]
  22 @findex help
  23 Show the help for all commands or just for command @var{cmd}.
  24 ETEXI
  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
  34 STEXI
  35 @item commit
  36 @findex commit
  37 Commit changes to the disk images (if -snapshot is used) or backing files.
  38 ETEXI
  39
  40     {
  41         .name       = "q|quit",
  42         .args_type  = "",
  43         .params     = "",
  44         .help       = "quit the emulator",
  45         .user_print = monitor_user_noop,
  46         .mhandler.cmd = hmp_quit,
  47     },
  48
  49 STEXI
  50 @item q or quit
  51 @findex quit
  52 Quit the emulator.
  53 ETEXI
  54
  55     {
  56         .name       = "block_resize",
  57         .args_type  = "device:B,size:o",
  58         .params     = "device size",
  59         .help       = "resize a block image",
  60         .mhandler.cmd = hmp_block_resize,
  61     },
  62
  63 STEXI
  64 @item block_resize
  65 @findex block_resize
  66 Resize a block image while a guest is running.  Usually requires guest
  67 action to see the updated size.  Resize to a lower size is supported,
  68 but should be used with extreme caution.  Note that this command only
  69 resizes image files, it can not resize block devices like LVM volumes.
  70 ETEXI
  71
  72     {
  73         .name       = "block_stream",
  74         .args_type  = "device:B,speed:o?,base:s?",
  75         .params     = "device [speed [base]]",
  76         .help       = "copy data from a backing file into a block device",
  77         .mhandler.cmd = hmp_block_stream,
  78     },
  79
  80 STEXI
  81 @item block_stream
  82 @findex block_stream
  83 Copy data from a backing file into a block device.
  84 ETEXI
  85
  86     {
  87         .name       = "block_job_set_speed",
  88         .args_type  = "device:B,speed:o",
  89         .params     = "device speed",
  90         .help       = "set maximum speed for a background block operation",
  91         .mhandler.cmd = hmp_block_job_set_speed,
  92     },
  93
  94 STEXI
  95 @item block_job_set_speed
  96 @findex block_job_set_speed
  97 Set maximum speed for a background block operation.
  98 ETEXI
  99
 100     {
 101         .name       = "block_job_cancel",
 102         .args_type  = "force:-f,device:B",
 103         .params     = "[-f] device",
 104         .help       = "stop an active background block operation (use -f"
 105                       "\n\t\t\t if the operation is currently paused)",
 106         .mhandler.cmd = hmp_block_job_cancel,
 107     },
 108
 109 STEXI
 110 @item block_job_cancel
 111 @findex block_job_cancel
 112 Stop an active background block operation (streaming, mirroring).
 113 ETEXI
 114
 115     {
 116         .name       = "block_job_complete",
 117         .args_type  = "device:B",
 118         .params     = "device",
 119         .help       = "stop an active background block operation",
 120         .mhandler.cmd = hmp_block_job_complete,
 121     },
 122
 123 STEXI
 124 @item block_job_complete
 125 @findex block_job_complete
 126 Manually trigger completion of an active background block operation.
 127 For mirroring, this will switch the device to the destination path.
 128 ETEXI
 129
 130     {
 131         .name       = "block_job_pause",
 132         .args_type  = "device:B",
 133         .params     = "device",
 134         .help       = "pause an active background block operation",
 135         .mhandler.cmd = hmp_block_job_pause,
 136     },
 137
 138 STEXI
 139 @item block_job_pause
 140 @findex block_job_pause
 141 Pause an active block streaming operation.
 142 ETEXI
 143
 144     {
 145         .name       = "block_job_resume",
 146         .args_type  = "device:B",
 147         .params     = "device",
 148         .help       = "resume a paused background block operation",
 149         .mhandler.cmd = hmp_block_job_resume,
 150     },
 151
 152 STEXI
 153 @item block_job_resume
 154 @findex block_job_resume
 155 Resume a paused block streaming operation.
 156 ETEXI
 157
 158     {
 159         .name       = "eject",
 160         .args_type  = "force:-f,device:B",
 161         .params     = "[-f] device",
 162         .help       = "eject a removable medium (use -f to force it)",
 163         .mhandler.cmd = hmp_eject,
 164     },
 165
 166 STEXI
 167 @item eject [-f] @var{device}
 168 @findex eject
 169 Eject a removable medium (use -f to force it).
 170 ETEXI
 171
 172     {
 173         .name       = "drive_del",
 174         .args_type  = "id:s",
 175         .params     = "device",
 176         .help       = "remove host block device",
 177         .user_print = monitor_user_noop,
 178         .mhandler.cmd_new = do_drive_del,
 179     },
 180
 181 STEXI
 182 @item drive_del @var{device}
 183 @findex drive_del
 184 Remove host block device.  The result is that guest generated IO is no longer
 185 submitted against the host device underlying the disk.  Once a drive has
 186 been deleted, the QEMU Block layer returns -EIO which results in IO
 187 errors in the guest for applications that are reading/writing to the device.
 188 ETEXI
 189
 190     {
 191         .name       = "change",
 192         .args_type  = "device:B,target:F,arg:s?",
 193         .params     = "device filename [format]",
 194         .help       = "change a removable medium, optional format",
 195         .mhandler.cmd = hmp_change,
 196     },
 197
 198 STEXI
 199 @item change @var{device} @var{setting}
 200 @findex change
 201
 202 Change the configuration of a device.
 203
 204 @table @option
 205 @item change @var{diskdevice} @var{filename} [@var{format}]
 206 Change the medium for a removable disk device to point to @var{filename}. eg
 207
 208 @example
 209 (qemu) change ide1-cd0 /path/to/some.iso
 210 @end example
 211
 212 @var{format} is optional.
 213
 214 @item change vnc @var{display},@var{options}
 215 Change the configuration of the VNC server. The valid syntax for @var{display}
 216 and @var{options} are described at @ref{sec_invocation}. eg
 217
 218 @example
 219 (qemu) change vnc localhost:1
 220 @end example
 221
 222 @item change vnc password [@var{password}]
 223
 224 Change the password associated with the VNC server. If the new password is not
 225 supplied, the monitor will prompt for it to be entered. VNC passwords are only
 226 significant up to 8 letters. eg
 227
 228 @example
 229 (qemu) change vnc password
 230 Password: ********
 231 @end example
 232
 233 @end table
 234 ETEXI
 235
 236     {
 237         .name       = "screendump",
 238         .args_type  = "filename:F",
 239         .params     = "filename",
 240         .help       = "save screen into PPM image 'filename'",
 241         .mhandler.cmd = hmp_screen_dump,
 242     },
 243
 244 STEXI
 245 @item screendump @var{filename}
 246 @findex screendump
 247 Save screen into PPM image @var{filename}.
 248 ETEXI
 249
 250     {
 251         .name       = "logfile",
 252         .args_type  = "filename:F",
 253         .params     = "filename",
 254         .help       = "output logs to 'filename'",
 255         .mhandler.cmd = do_logfile,
 256     },
 257
 258 STEXI
 259 @item logfile @var{filename}
 260 @findex logfile
 261 Output logs to @var{filename}.
 262 ETEXI
 263
 264     {
 265         .name       = "trace-event",
 266         .args_type  = "name:s,option:b",
 267         .params     = "name on|off",
 268         .help       = "changes status of a specific trace event",
 269         .mhandler.cmd = do_trace_event_set_state,
 270     },
 271
 272 STEXI
 273 @item trace-event
 274 @findex trace-event
 275 changes status of a trace event
 276 ETEXI
 277
 278 #if defined(CONFIG_TRACE_SIMPLE)
 279     {
 280         .name       = "trace-file",
 281         .args_type  = "op:s?,arg:F?",
 282         .params     = "on|off|flush|set [arg]",
 283         .help       = "open, close, or flush trace file, or set a new file name",
 284         .mhandler.cmd = do_trace_file,
 285     },
 286
 287 STEXI
 288 @item trace-file on|off|flush
 289 @findex trace-file
 290 Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
 291 ETEXI
 292 #endif
 293
 294     {
 295         .name       = "log",
 296         .args_type  = "items:s",
 297         .params     = "item1[,...]",
 298         .help       = "activate logging of the specified items",
 299         .mhandler.cmd = do_log,
 300     },
 301
 302 STEXI
 303 @item log @var{item1}[,...]
 304 @findex log
 305 Activate logging of the specified items.
 306 ETEXI
 307
 308     {
 309         .name       = "savevm",
 310         .args_type  = "name:s?",
 311         .params     = "[tag|id]",
 312         .help       = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
 313         .mhandler.cmd = do_savevm,
 314     },
 315
 316 STEXI
 317 @item savevm [@var{tag}|@var{id}]
 318 @findex savevm
 319 Create a snapshot of the whole virtual machine. If @var{tag} is
 320 provided, it is used as human readable identifier. If there is already
 321 a snapshot with the same tag or ID, it is replaced. More info at
 322 @ref{vm_snapshots}.
 323 ETEXI
 324
 325     {
 326         .name       = "loadvm",
 327         .args_type  = "name:s",
 328         .params     = "tag|id",
 329         .help       = "restore a VM snapshot from its tag or id",
 330         .mhandler.cmd = do_loadvm,
 331     },
 332
 333 STEXI
 334 @item loadvm @var{tag}|@var{id}
 335 @findex loadvm
 336 Set the whole virtual machine to the snapshot identified by the tag
 337 @var{tag} or the unique snapshot ID @var{id}.
 338 ETEXI
 339
 340     {
 341         .name       = "delvm",
 342         .args_type  = "name:s",
 343         .params     = "tag|id",
 344         .help       = "delete a VM snapshot from its tag or id",
 345         .mhandler.cmd = do_delvm,
 346     },
 347
 348 STEXI
 349 @item delvm @var{tag}|@var{id}
 350 @findex delvm
 351 Delete the snapshot identified by @var{tag} or @var{id}.
 352 ETEXI
 353
 354     {
 355         .name       = "singlestep",
 356         .args_type  = "option:s?",
 357         .params     = "[on|off]",
 358         .help       = "run emulation in singlestep mode or switch to normal mode",
 359         .mhandler.cmd = do_singlestep,
 360     },
 361
 362 STEXI
 363 @item singlestep [off]
 364 @findex singlestep
 365 Run the emulation in single step mode.
 366 If called with option off, the emulation returns to normal mode.
 367 ETEXI
 368
 369     {
 370         .name       = "stop",
 371         .args_type  = "",
 372         .params     = "",
 373         .help       = "stop emulation",
 374         .mhandler.cmd = hmp_stop,
 375     },
 376
 377 STEXI
 378 @item stop
 379 @findex stop
 380 Stop emulation.
 381 ETEXI
 382
 383     {
 384         .name       = "c|cont",
 385         .args_type  = "",
 386         .params     = "",
 387         .help       = "resume emulation",
 388         .mhandler.cmd = hmp_cont,
 389     },
 390
 391 STEXI
 392 @item c or cont
 393 @findex cont
 394 Resume emulation.
 395 ETEXI
 396
 397     {
 398         .name       = "system_wakeup",
 399         .args_type  = "",
 400         .params     = "",
 401         .help       = "wakeup guest from suspend",
 402         .mhandler.cmd = hmp_system_wakeup,
 403     },
 404
 405 STEXI
 406 @item system_wakeup
 407 @findex system_wakeup
 408 Wakeup guest from suspend.
 409 ETEXI
 410
 411     {
 412         .name       = "gdbserver",
 413         .args_type  = "device:s?",
 414         .params     = "[device]",
 415         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 416         .mhandler.cmd = do_gdbserver,
 417     },
 418
 419 STEXI
 420 @item gdbserver [@var{port}]
 421 @findex gdbserver
 422 Start gdbserver session (default @var{port}=1234)
 423 ETEXI
 424
 425     {
 426         .name       = "x",
 427         .args_type  = "fmt:/,addr:l",
 428         .params     = "/fmt addr",
 429         .help       = "virtual memory dump starting at 'addr'",
 430         .mhandler.cmd = do_memory_dump,
 431     },
 432
 433 STEXI
 434 @item x/fmt @var{addr}
 435 @findex x
 436 Virtual memory dump starting at @var{addr}.
 437 ETEXI
 438
 439     {
 440         .name       = "xp",
 441         .args_type  = "fmt:/,addr:l",
 442         .params     = "/fmt addr",
 443         .help       = "physical memory dump starting at 'addr'",
 444         .mhandler.cmd = do_physical_memory_dump,
 445     },
 446
 447 STEXI
 448 @item xp /@var{fmt} @var{addr}
 449 @findex xp
 450 Physical memory dump starting at @var{addr}.
 451
 452 @var{fmt} is a format which tells the command how to format the
 453 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
 454
 455 @table @var
 456 @item count
 457 is the number of items to be dumped.
 458
 459 @item format
 460 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 461 c (char) or i (asm instruction).
 462
 463 @item size
 464 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 465 @code{h} or @code{w} can be specified with the @code{i} format to
 466 respectively select 16 or 32 bit code instruction size.
 467
 468 @end table
 469
 470 Examples:
 471 @itemize
 472 @item
 473 Dump 10 instructions at the current instruction pointer:
 474 @example
 475 (qemu) x/10i $eip
 476 0x90107063:  ret
 477 0x90107064:  sti
 478 0x90107065:  lea    0x0(%esi,1),%esi
 479 0x90107069:  lea    0x0(%edi,1),%edi
 480 0x90107070:  ret
 481 0x90107071:  jmp    0x90107080
 482 0x90107073:  nop
 483 0x90107074:  nop
 484 0x90107075:  nop
 485 0x90107076:  nop
 486 @end example
 487
 488 @item
 489 Dump 80 16 bit values at the start of the video memory.
 490 @smallexample
 491 (qemu) xp/80hx 0xb8000
 492 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 493 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 494 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 495 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 496 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 497 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 498 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 499 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 500 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 501 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 502 @end smallexample
 503 @end itemize
 504 ETEXI
 505
 506     {
 507         .name       = "p|print",
 508         .args_type  = "fmt:/,val:l",
 509         .params     = "/fmt expr",
 510         .help       = "print expression value (use $reg for CPU register access)",
 511         .mhandler.cmd = do_print,
 512     },
 513
 514 STEXI
 515 @item p or print/@var{fmt} @var{expr}
 516 @findex print
 517
 518 Print expression value. Only the @var{format} part of @var{fmt} is
 519 used.
 520 ETEXI
 521
 522     {
 523         .name       = "i",
 524         .args_type  = "fmt:/,addr:i,index:i.",
 525         .params     = "/fmt addr",
 526         .help       = "I/O port read",
 527         .mhandler.cmd = do_ioport_read,
 528     },
 529
 530 STEXI
 531 Read I/O port.
 532 ETEXI
 533
 534     {
 535         .name       = "o",
 536         .args_type  = "fmt:/,addr:i,val:i",
 537         .params     = "/fmt addr value",
 538         .help       = "I/O port write",
 539         .mhandler.cmd = do_ioport_write,
 540     },
 541
 542 STEXI
 543 Write to I/O port.
 544 ETEXI
 545
 546     {
 547         .name       = "sendkey",
 548         .args_type  = "keys:s,hold-time:i?",
 549         .params     = "keys [hold_ms]",
 550         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 551         .mhandler.cmd = hmp_send_key,
 552     },
 553
 554 STEXI
 555 @item sendkey @var{keys}
 556 @findex sendkey
 557
 558 Send @var{keys} to the guest. @var{keys} could be the name of the
 559 key or the raw value in hexadecimal format. Use @code{-} to press
 560 several keys simultaneously. Example:
 561 @example
 562 sendkey ctrl-alt-f1
 563 @end example
 564
 565 This command is useful to send keys that your graphical user interface
 566 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
 567 ETEXI
 568
 569     {
 570         .name       = "system_reset",
 571         .args_type  = "",
 572         .params     = "",
 573         .help       = "reset the system",
 574         .mhandler.cmd = hmp_system_reset,
 575     },
 576
 577 STEXI
 578 @item system_reset
 579 @findex system_reset
 580
 581 Reset the system.
 582 ETEXI
 583
 584     {
 585         .name       = "system_powerdown",
 586         .args_type  = "",
 587         .params     = "",
 588         .help       = "send system power down event",
 589         .mhandler.cmd = hmp_system_powerdown,
 590     },
 591
 592 STEXI
 593 @item system_powerdown
 594 @findex system_powerdown
 595
 596 Power down the system (if supported).
 597 ETEXI
 598
 599     {
 600         .name       = "sum",
 601         .args_type  = "start:i,size:i",
 602         .params     = "addr size",
 603         .help       = "compute the checksum of a memory region",
 604         .mhandler.cmd = do_sum,
 605     },
 606
 607 STEXI
 608 @item sum @var{addr} @var{size}
 609 @findex sum
 610
 611 Compute the checksum of a memory region.
 612 ETEXI
 613
 614     {
 615         .name       = "usb_add",
 616         .args_type  = "devname:s",
 617         .params     = "device",
 618         .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
 619         .mhandler.cmd = do_usb_add,
 620     },
 621
 622 STEXI
 623 @item usb_add @var{devname}
 624 @findex usb_add
 625
 626 Add the USB device @var{devname}.  For details of available devices see
 627 @ref{usb_devices}
 628 ETEXI
 629
 630     {
 631         .name       = "usb_del",
 632         .args_type  = "devname:s",
 633         .params     = "device",
 634         .help       = "remove USB device 'bus.addr'",
 635         .mhandler.cmd = do_usb_del,
 636     },
 637
 638 STEXI
 639 @item usb_del @var{devname}
 640 @findex usb_del
 641
 642 Remove the USB device @var{devname} from the QEMU virtual USB
 643 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
 644 command @code{info usb} to see the devices you can remove.
 645 ETEXI
 646
 647     {
 648         .name       = "device_add",
 649         .args_type  = "device:O",
 650         .params     = "driver[,prop=value][,...]",
 651         .help       = "add device, like -device on the command line",
 652         .user_print = monitor_user_noop,
 653         .mhandler.cmd_new = do_device_add,
 654     },
 655
 656 STEXI
 657 @item device_add @var{config}
 658 @findex device_add
 659
 660 Add device.
 661 ETEXI
 662
 663     {
 664         .name       = "device_del",
 665         .args_type  = "id:s",
 666         .params     = "device",
 667         .help       = "remove device",
 668         .mhandler.cmd = hmp_device_del,
 669     },
 670
 671 STEXI
 672 @item device_del @var{id}
 673 @findex device_del
 674
 675 Remove device @var{id}.
 676 ETEXI
 677
 678     {
 679         .name       = "cpu",
 680         .args_type  = "index:i",
 681         .params     = "index",
 682         .help       = "set the default CPU",
 683         .mhandler.cmd = hmp_cpu,
 684     },
 685
 686 STEXI
 687 @item cpu @var{index}
 688 @findex cpu
 689 Set the default CPU.
 690 ETEXI
 691
 692     {
 693         .name       = "mouse_move",
 694         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 695         .params     = "dx dy [dz]",
 696         .help       = "send mouse move events",
 697         .mhandler.cmd = do_mouse_move,
 698     },
 699
 700 STEXI
 701 @item mouse_move @var{dx} @var{dy} [@var{dz}]
 702 @findex mouse_move
 703 Move the active mouse to the specified coordinates @var{dx} @var{dy}
 704 with optional scroll axis @var{dz}.
 705 ETEXI
 706
 707     {
 708         .name       = "mouse_button",
 709         .args_type  = "button_state:i",
 710         .params     = "state",
 711         .help       = "change mouse button state (1=L, 2=M, 4=R)",
 712         .mhandler.cmd = do_mouse_button,
 713     },
 714
 715 STEXI
 716 @item mouse_button @var{val}
 717 @findex mouse_button
 718 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
 719 ETEXI
 720
 721     {
 722         .name       = "mouse_set",
 723         .args_type  = "index:i",
 724         .params     = "index",
 725         .help       = "set which mouse device receives events",
 726         .mhandler.cmd = do_mouse_set,
 727     },
 728
 729 STEXI
 730 @item mouse_set @var{index}
 731 @findex mouse_set
 732 Set which mouse device receives events at given @var{index}, index
 733 can be obtained with
 734 @example
 735 info mice
 736 @end example
 737 ETEXI
 738
 739 #ifdef HAS_AUDIO
 740     {
 741         .name       = "wavcapture",
 742         .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
 743         .params     = "path [frequency [bits [channels]]]",
 744         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 745         .mhandler.cmd = do_wav_capture,
 746     },
 747 #endif
 748 STEXI
 749 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
 750 @findex wavcapture
 751 Capture audio into @var{filename}. Using sample rate @var{frequency}
 752 bits per sample @var{bits} and number of channels @var{channels}.
 753
 754 Defaults:
 755 @itemize @minus
 756 @item Sample rate = 44100 Hz - CD quality
 757 @item Bits = 16
 758 @item Number of channels = 2 - Stereo
 759 @end itemize
 760 ETEXI
 761
 762 #ifdef HAS_AUDIO
 763     {
 764         .name       = "stopcapture",
 765         .args_type  = "n:i",
 766         .params     = "capture index",
 767         .help       = "stop capture",
 768         .mhandler.cmd = do_stop_capture,
 769     },
 770 #endif
 771 STEXI
 772 @item stopcapture @var{index}
 773 @findex stopcapture
 774 Stop capture with a given @var{index}, index can be obtained with
 775 @example
 776 info capture
 777 @end example
 778 ETEXI
 779
 780     {
 781         .name       = "memsave",
 782         .args_type  = "val:l,size:i,filename:s",
 783         .params     = "addr size file",
 784         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 785         .mhandler.cmd = hmp_memsave,
 786     },
 787
 788 STEXI
 789 @item memsave @var{addr} @var{size} @var{file}
 790 @findex memsave
 791 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
 792 ETEXI
 793
 794     {
 795         .name       = "pmemsave",
 796         .args_type  = "val:l,size:i,filename:s",
 797         .params     = "addr size file",
 798         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 799         .mhandler.cmd = hmp_pmemsave,
 800     },
 801
 802 STEXI
 803 @item pmemsave @var{addr} @var{size} @var{file}
 804 @findex pmemsave
 805 save to disk physical memory dump starting at @var{addr} of size @var{size}.
 806 ETEXI
 807
 808     {
 809         .name       = "boot_set",
 810         .args_type  = "bootdevice:s",
 811         .params     = "bootdevice",
 812         .help       = "define new values for the boot device list",
 813         .mhandler.cmd = do_boot_set,
 814     },
 815
 816 STEXI
 817 @item boot_set @var{bootdevicelist}
 818 @findex boot_set
 819
 820 Define new values for the boot device list. Those values will override
 821 the values specified on the command line through the @code{-boot} option.
 822
 823 The values that can be specified here depend on the machine type, but are
 824 the same that can be specified in the @code{-boot} command line option.
 825 ETEXI
 826
 827 #if defined(TARGET_I386)
 828     {
 829         .name       = "nmi",
 830         .args_type  = "",
 831         .params     = "",
 832         .help       = "inject an NMI on all guest's CPUs",
 833         .mhandler.cmd = hmp_inject_nmi,
 834     },
 835 #endif
 836 STEXI
 837 @item nmi @var{cpu}
 838 @findex nmi
 839 Inject an NMI on the given CPU (x86 only).
 840
 841 ETEXI
 842
 843     {
 844         .name       = "ringbuf_write",
 845         .args_type  = "device:s,data:s",
 846         .params     = "device data",
 847         .help       = "Write to a ring buffer character device",
 848         .mhandler.cmd = hmp_ringbuf_write,
 849     },
 850
 851 STEXI
 852 @item ringbuf_write @var{device} @var{data}
 853 @findex ringbuf_write
 854 Write @var{data} to ring buffer character device @var{device}.
 855 @var{data} must be a UTF-8 string.
 856
 857 ETEXI
 858
 859     {
 860         .name       = "ringbuf_read",
 861         .args_type  = "device:s,size:i",
 862         .params     = "device size",
 863         .help       = "Read from a ring buffer character device",
 864         .mhandler.cmd = hmp_ringbuf_read,
 865     },
 866
 867 STEXI
 868 @item ringbuf_read @var{device}
 869 @findex ringbuf_read
 870 Read and print up to @var{size} bytes from ring buffer character
 871 device @var{device}.
 872 Certain non-printable characters are printed \uXXXX, where XXXX is the
 873 character code in hexadecimal.  Character \ is printed \\.
 874 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 875 NUL characters, after the ring buffer lost data, and when reading
 876 stops because the size limit is reached.
 877
 878 ETEXI
 879
 880     {
 881         .name       = "migrate",
 882         .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
 883         .params     = "[-d] [-b] [-i] uri",
 884         .help       = "migrate to URI (using -d to not wait for completion)"
 885                       "\n\t\t\t -b for migration without shared storage with"
 886                       " full copy of disk\n\t\t\t -i for migration without "
 887                       "shared storage with incremental copy of disk "
 888                       "(base image shared between src and destination)",
 889         .mhandler.cmd = hmp_migrate,
 890     },
 891
 892
 893 STEXI
 894 @item migrate [-d] [-b] [-i] @var{uri}
 895 @findex migrate
 896 Migrate to @var{uri} (using -d to not wait for completion).
 897         -b for migration with full copy of disk
 898         -i for migration with incremental copy of disk (base image is shared)
 899 ETEXI
 900
 901     {
 902         .name       = "migrate_cancel",
 903         .args_type  = "",
 904         .params     = "",
 905         .help       = "cancel the current VM migration",
 906         .mhandler.cmd = hmp_migrate_cancel,
 907     },
 908
 909 STEXI
 910 @item migrate_cancel
 911 @findex migrate_cancel
 912 Cancel the current VM migration.
 913
 914 ETEXI
 915
 916     {
 917         .name       = "migrate_set_cache_size",
 918         .args_type  = "value:o",
 919         .params     = "value",
 920         .help       = "set cache size (in bytes) for XBZRLE migrations,"
 921                       "the cache size will be rounded down to the nearest "
 922                       "power of 2.\n"
 923                       "The cache size affects the number of cache misses."
 924                       "In case of a high cache miss ratio you need to increase"
 925                       " the cache size",
 926         .mhandler.cmd = hmp_migrate_set_cache_size,
 927     },
 928
 929 STEXI
 930 @item migrate_set_cache_size @var{value}
 931 @findex migrate_set_cache_size
 932 Set cache size to @var{value} (in bytes) for xbzrle migrations.
 933 ETEXI
 934
 935     {
 936         .name       = "migrate_set_speed",
 937         .args_type  = "value:o",
 938         .params     = "value",
 939         .help       = "set maximum speed (in bytes) for migrations. "
 940         "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
 941         .mhandler.cmd = hmp_migrate_set_speed,
 942     },
 943
 944 STEXI
 945 @item migrate_set_speed @var{value}
 946 @findex migrate_set_speed
 947 Set maximum speed to @var{value} (in bytes) for migrations.
 948 ETEXI
 949
 950     {
 951         .name       = "migrate_set_downtime",
 952         .args_type  = "value:T",
 953         .params     = "value",
 954         .help       = "set maximum tolerated downtime (in seconds) for migrations",
 955         .mhandler.cmd = hmp_migrate_set_downtime,
 956     },
 957
 958 STEXI
 959 @item migrate_set_downtime @var{second}
 960 @findex migrate_set_downtime
 961 Set maximum tolerated downtime (in seconds) for migration.
 962 ETEXI
 963
 964     {
 965         .name       = "migrate_set_capability",
 966         .args_type  = "capability:s,state:b",
 967         .params     = "capability state",
 968         .help       = "Enable/Disable the usage of a capability for migration",
 969         .mhandler.cmd = hmp_migrate_set_capability,
 970     },
 971
 972 STEXI
 973 @item migrate_set_capability @var{capability} @var{state}
 974 @findex migrate_set_capability
 975 Enable/Disable the usage of a capability @var{capability} for migration.
 976 ETEXI
 977
 978     {
 979         .name       = "client_migrate_info",
 980         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
 981         .params     = "protocol hostname port tls-port cert-subject",
 982         .help       = "send migration info to spice/vnc client",
 983         .user_print = monitor_user_noop,
 984         .mhandler.cmd_async = client_migrate_info,
 985         .flags      = MONITOR_CMD_ASYNC,
 986     },
 987
 988 STEXI
 989 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
 990 @findex client_migrate_info
 991 Set the spice/vnc connection info for the migration target.  The spice/vnc
 992 server will ask the spice/vnc client to automatically reconnect using the
 993 new parameters (if specified) once the vm migration finished successfully.
 994 ETEXI
 995
 996 #if defined(CONFIG_HAVE_CORE_DUMP)
 997     {
 998         .name       = "dump-guest-memory",
 999         .args_type  = "paging:-p,filename:F,begin:i?,length:i?",
1000         .params     = "[-p] filename [begin] [length]",
1001         .help       = "dump guest memory to file"
1002                       "\n\t\t\t begin(optional): the starting physical address"
1003                       "\n\t\t\t length(optional): the memory size, in bytes",
1004         .mhandler.cmd = hmp_dump_guest_memory,
1005     },
1006
1007
1008 STEXI
1009 @item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
1010 @findex dump-guest-memory
1011 Dump guest memory to @var{protocol}. The file can be processed with crash or
1012 gdb.
1013   filename: dump file name
1014     paging: do paging to get guest's memory mapping
1015      begin: the starting physical address. It's optional, and should be
1016             specified with length together.
1017     length: the memory size, in bytes. It's optional, and should be specified
1018             with begin together.
1019 ETEXI
1020 #endif
1021
1022     {
1023         .name       = "snapshot_blkdev",
1024         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1025         .params     = "[-n] device [new-image-file] [format]",
1026         .help       = "initiates a live snapshot\n\t\t\t"
1027                       "of device. If a new image file is specified, the\n\t\t\t"
1028                       "new image file will become the new root image.\n\t\t\t"
1029                       "If format is specified, the snapshot file will\n\t\t\t"
1030                       "be created in that format. Otherwise the\n\t\t\t"
1031                       "snapshot will be internal! (currently unsupported).\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
1038 STEXI
1039 @item snapshot_blkdev
1040 @findex snapshot_blkdev
1041 Snapshot device, using snapshot file as target if provided
1042 ETEXI
1043
1044     {
1045         .name       = "drive_mirror",
1046         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1047         .params     = "[-n] [-f] device target [format]",
1048         .help       = "initiates live storage\n\t\t\t"
1049                       "migration for a device. The device's contents are\n\t\t\t"
1050                       "copied to the new image file, including data that\n\t\t\t"
1051                       "is written after the command is started.\n\t\t\t"
1052                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1053                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1054                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1055                       "so that the result does not need a backing file.\n\t\t\t",
1056         .mhandler.cmd = hmp_drive_mirror,
1057     },
1058 STEXI
1059 @item drive_mirror
1060 @findex drive_mirror
1061 Start mirroring a block device's writes to a new destination,
1062 using the specified target.
1063 ETEXI
1064
1065     {
1066         .name       = "drive_add",
1067         .args_type  = "pci_addr:s,opts:s",
1068         .params     = "[[<domain>:]<bus>:]<slot>\n"
1069                       "[file=file][,if=type][,bus=n]\n"
1070                       "[,unit=m][,media=d][,index=i]\n"
1071                       "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1072                       "[,snapshot=on|off][,cache=on|off]\n"
1073                       "[,readonly=on|off][,copy-on-read=on|off]",
1074         .help       = "add drive to PCI storage controller",
1075         .mhandler.cmd = drive_hot_add,
1076     },
1077
1078 STEXI
1079 @item drive_add
1080 @findex drive_add
1081 Add drive to PCI storage controller.
1082 ETEXI
1083
1084 #if defined(TARGET_I386)
1085     {
1086         .name       = "pci_add",
1087         .args_type  = "pci_addr:s,type:s,opts:s?",
1088         .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
1089         .help       = "hot-add PCI device",
1090         .mhandler.cmd = pci_device_hot_add,
1091     },
1092 #endif
1093
1094 STEXI
1095 @item pci_add
1096 @findex pci_add
1097 Hot-add PCI device.
1098 ETEXI
1099
1100 #if defined(TARGET_I386)
1101     {
1102         .name       = "pci_del",
1103         .args_type  = "pci_addr:s",
1104         .params     = "[[<domain>:]<bus>:]<slot>",
1105         .help       = "hot remove PCI device",
1106         .mhandler.cmd = do_pci_device_hot_remove,
1107     },
1108 #endif
1109
1110 STEXI
1111 @item pci_del
1112 @findex pci_del
1113 Hot remove PCI device.
1114 ETEXI
1115
1116     {
1117         .name       = "pcie_aer_inject_error",
1118         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1119                       "id:s,error_status:s,"
1120                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1121                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1122         .params     = "[-a] [-c] id "
1123                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1124         .help       = "inject pcie aer error\n\t\t\t"
1125                       " -a for advisory non fatal error\n\t\t\t"
1126                       " -c for correctable error\n\t\t\t"
1127                       "<id> = qdev device id\n\t\t\t"
1128                       "<error_status> = error string or 32bit\n\t\t\t"
1129                       "<tlb header> = 32bit x 4\n\t\t\t"
1130                       "<tlb header prefix> = 32bit x 4",
1131         .user_print  = pcie_aer_inject_error_print,
1132         .mhandler.cmd_new = do_pcie_aer_inject_error,
1133     },
1134
1135 STEXI
1136 @item pcie_aer_inject_error
1137 @findex pcie_aer_inject_error
1138 Inject PCIe AER error
1139 ETEXI
1140
1141     {
1142         .name       = "host_net_add",
1143         .args_type  = "device:s,opts:s?",
1144         .params     = "tap|user|socket|vde|dump [options]",
1145         .help       = "add host VLAN client",
1146         .mhandler.cmd = net_host_device_add,
1147     },
1148
1149 STEXI
1150 @item host_net_add
1151 @findex host_net_add
1152 Add host VLAN client.
1153 ETEXI
1154
1155     {
1156         .name       = "host_net_remove",
1157         .args_type  = "vlan_id:i,device:s",
1158         .params     = "vlan_id name",
1159         .help       = "remove host VLAN client",
1160         .mhandler.cmd = net_host_device_remove,
1161     },
1162
1163 STEXI
1164 @item host_net_remove
1165 @findex host_net_remove
1166 Remove host VLAN client.
1167 ETEXI
1168
1169     {
1170         .name       = "netdev_add",
1171         .args_type  = "netdev:O",
1172         .params     = "[user|tap|socket|hubport],id=str[,prop=value][,...]",
1173         .help       = "add host network device",
1174         .mhandler.cmd = hmp_netdev_add,
1175     },
1176
1177 STEXI
1178 @item netdev_add
1179 @findex netdev_add
1180 Add host network device.
1181 ETEXI
1182
1183     {
1184         .name       = "netdev_del",
1185         .args_type  = "id:s",
1186         .params     = "id",
1187         .help       = "remove host network device",
1188         .mhandler.cmd = hmp_netdev_del,
1189     },
1190
1191 STEXI
1192 @item netdev_del
1193 @findex netdev_del
1194 Remove host network device.
1195 ETEXI
1196
1197 #ifdef CONFIG_SLIRP
1198     {
1199         .name       = "hostfwd_add",
1200         .args_type  = "arg1:s,arg2:s?,arg3:s?",
1201         .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1202         .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1203         .mhandler.cmd = net_slirp_hostfwd_add,
1204     },
1205 #endif
1206 STEXI
1207 @item hostfwd_add
1208 @findex hostfwd_add
1209 Redirect TCP or UDP connections from host to guest (requires -net user).
1210 ETEXI
1211
1212 #ifdef CONFIG_SLIRP
1213     {
1214         .name       = "hostfwd_remove",
1215         .args_type  = "arg1:s,arg2:s?,arg3:s?",
1216         .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1217         .help       = "remove host-to-guest TCP or UDP redirection",
1218         .mhandler.cmd = net_slirp_hostfwd_remove,
1219     },
1220
1221 #endif
1222 STEXI
1223 @item hostfwd_remove
1224 @findex hostfwd_remove
1225 Remove host-to-guest TCP or UDP redirection.
1226 ETEXI
1227
1228     {
1229         .name       = "balloon",
1230         .args_type  = "value:M",
1231         .params     = "target",
1232         .help       = "request VM to change its memory allocation (in MB)",
1233         .mhandler.cmd = hmp_balloon,
1234     },
1235
1236 STEXI
1237 @item balloon @var{value}
1238 @findex balloon
1239 Request VM to change its memory allocation to @var{value} (in MB).
1240 ETEXI
1241
1242     {
1243         .name       = "set_link",
1244         .args_type  = "name:s,up:b",
1245         .params     = "name on|off",
1246         .help       = "change the link status of a network adapter",
1247         .mhandler.cmd = hmp_set_link,
1248     },
1249
1250 STEXI
1251 @item set_link @var{name} [on|off]
1252 @findex set_link
1253 Switch link @var{name} on (i.e. up) or off (i.e. down).
1254 ETEXI
1255
1256     {
1257         .name       = "watchdog_action",
1258         .args_type  = "action:s",
1259         .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1260         .help       = "change watchdog action",
1261         .mhandler.cmd = do_watchdog_action,
1262     },
1263
1264 STEXI
1265 @item watchdog_action
1266 @findex watchdog_action
1267 Change watchdog action.
1268 ETEXI
1269
1270     {
1271         .name       = "acl_show",
1272         .args_type  = "aclname:s",
1273         .params     = "aclname",
1274         .help       = "list rules in the access control list",
1275         .mhandler.cmd = do_acl_show,
1276     },
1277
1278 STEXI
1279 @item acl_show @var{aclname}
1280 @findex acl_show
1281 List all the matching rules in the access control list, and the default
1282 policy. There are currently two named access control lists,
1283 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1284 certificate distinguished name, and SASL username respectively.
1285 ETEXI
1286
1287     {
1288         .name       = "acl_policy",
1289         .args_type  = "aclname:s,policy:s",
1290         .params     = "aclname allow|deny",
1291         .help       = "set default access control list policy",
1292         .mhandler.cmd = do_acl_policy,
1293     },
1294
1295 STEXI
1296 @item acl_policy @var{aclname} @code{allow|deny}
1297 @findex acl_policy
1298 Set the default access control list policy, used in the event that
1299 none of the explicit rules match. The default policy at startup is
1300 always @code{deny}.
1301 ETEXI
1302
1303     {
1304         .name       = "acl_add",
1305         .args_type  = "aclname:s,match:s,policy:s,index:i?",
1306         .params     = "aclname match allow|deny [index]",
1307         .help       = "add a match rule to the access control list",
1308         .mhandler.cmd = do_acl_add,
1309     },
1310
1311 STEXI
1312 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1313 @findex acl_add
1314 Add a match rule to the access control list, allowing or denying access.
1315 The match will normally be an exact username or x509 distinguished name,
1316 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1317 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1318 normally be appended to the end of the ACL, but can be inserted
1319 earlier in the list if the optional @var{index} parameter is supplied.
1320 ETEXI
1321
1322     {
1323         .name       = "acl_remove",
1324         .args_type  = "aclname:s,match:s",
1325         .params     = "aclname match",
1326         .help       = "remove a match rule from the access control list",
1327         .mhandler.cmd = do_acl_remove,
1328     },
1329
1330 STEXI
1331 @item acl_remove @var{aclname} @var{match}
1332 @findex acl_remove
1333 Remove the specified match rule from the access control list.
1334 ETEXI
1335
1336     {
1337         .name       = "acl_reset",
1338         .args_type  = "aclname:s",
1339         .params     = "aclname",
1340         .help       = "reset the access control list",
1341         .mhandler.cmd = do_acl_reset,
1342     },
1343
1344 STEXI
1345 @item acl_reset @var{aclname}
1346 @findex acl_reset
1347 Remove all matches from the access control list, and set the default
1348 policy back to @code{deny}.
1349 ETEXI
1350
1351     {
1352         .name       = "nbd_server_start",
1353         .args_type  = "all:-a,writable:-w,uri:s",
1354         .params     = "nbd_server_start [-a] [-w] host:port",
1355         .help       = "serve block devices on the given host and port",
1356         .mhandler.cmd = hmp_nbd_server_start,
1357     },
1358 STEXI
1359 @item nbd_server_start @var{host}:@var{port}
1360 @findex nbd_server_start
1361 Start an NBD server on the given host and/or port.  If the @option{-a}
1362 option is included, all of the virtual machine's block devices that
1363 have an inserted media on them are automatically exported; in this case,
1364 the @option{-w} option makes the devices writable too.
1365 ETEXI
1366
1367     {
1368         .name       = "nbd_server_add",
1369         .args_type  = "writable:-w,device:B",
1370         .params     = "nbd_server_add [-w] device",
1371         .help       = "export a block device via NBD",
1372         .mhandler.cmd = hmp_nbd_server_add,
1373     },
1374 STEXI
1375 @item nbd_server_add @var{device}
1376 @findex nbd_server_add
1377 Export a block device through QEMU's NBD server, which must be started
1378 beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
1379 exported device writable too.
1380 ETEXI
1381
1382     {
1383         .name       = "nbd_server_stop",
1384         .args_type  = "",
1385         .params     = "nbd_server_stop",
1386         .help       = "stop serving block devices using the NBD protocol",
1387         .mhandler.cmd = hmp_nbd_server_stop,
1388     },
1389 STEXI
1390 @item nbd_server_stop
1391 @findex nbd_server_stop
1392 Stop the QEMU embedded NBD server.
1393 ETEXI
1394
1395
1396 #if defined(TARGET_I386)
1397
1398     {
1399         .name       = "mce",
1400         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1401         .params     = "[-b] cpu bank status mcgstatus addr misc",
1402         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1403         .mhandler.cmd = do_inject_mce,
1404     },
1405
1406 #endif
1407 STEXI
1408 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1409 @findex mce (x86)
1410 Inject an MCE on the given CPU (x86 only).
1411 ETEXI
1412
1413     {
1414         .name       = "getfd",
1415         .args_type  = "fdname:s",
1416         .params     = "getfd name",
1417         .help       = "receive a file descriptor via SCM rights and assign it a name",
1418         .mhandler.cmd = hmp_getfd,
1419     },
1420
1421 STEXI
1422 @item getfd @var{fdname}
1423 @findex getfd
1424 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1425 mechanism on unix sockets, it is stored using the name @var{fdname} for
1426 later use by other monitor commands.
1427 ETEXI
1428
1429     {
1430         .name       = "closefd",
1431         .args_type  = "fdname:s",
1432         .params     = "closefd name",
1433         .help       = "close a file descriptor previously passed via SCM rights",
1434         .mhandler.cmd = hmp_closefd,
1435     },
1436
1437 STEXI
1438 @item closefd @var{fdname}
1439 @findex closefd
1440 Close the file descriptor previously assigned to @var{fdname} using the
1441 @code{getfd} command. This is only needed if the file descriptor was never
1442 used by another monitor command.
1443 ETEXI
1444
1445     {
1446         .name       = "block_passwd",
1447         .args_type  = "device:B,password:s",
1448         .params     = "block_passwd device password",
1449         .help       = "set the password of encrypted block devices",
1450         .mhandler.cmd = hmp_block_passwd,
1451     },
1452
1453 STEXI
1454 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1455 @findex block_set_io_throttle
1456 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}
1457 ETEXI
1458
1459     {
1460         .name       = "block_set_io_throttle",
1461         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1462         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1463         .help       = "change I/O throttle limits for a block drive",
1464         .mhandler.cmd = hmp_block_set_io_throttle,
1465     },
1466
1467 STEXI
1468 @item block_passwd @var{device} @var{password}
1469 @findex block_passwd
1470 Set the encrypted device @var{device} password to @var{password}
1471 ETEXI
1472
1473     {
1474         .name       = "set_password",
1475         .args_type  = "protocol:s,password:s,connected:s?",
1476         .params     = "protocol password action-if-connected",
1477         .help       = "set spice/vnc password",
1478         .mhandler.cmd = hmp_set_password,
1479     },
1480
1481 STEXI
1482 @item set_password [ vnc | spice ] password [ action-if-connected ]
1483 @findex set_password
1484
1485 Change spice/vnc password.  Use zero to make the password stay valid
1486 forever.  @var{action-if-connected} specifies what should happen in
1487 case a connection is established: @var{fail} makes the password change
1488 fail.  @var{disconnect} changes the password and disconnects the
1489 client.  @var{keep} changes the password and keeps the connection up.
1490 @var{keep} is the default.
1491 ETEXI
1492
1493     {
1494         .name       = "expire_password",
1495         .args_type  = "protocol:s,time:s",
1496         .params     = "protocol time",
1497         .help       = "set spice/vnc password expire-time",
1498         .mhandler.cmd = hmp_expire_password,
1499     },
1500
1501 STEXI
1502 @item expire_password [ vnc | spice ] expire-time
1503 @findex expire_password
1504
1505 Specify when a password for spice/vnc becomes
1506 invalid. @var{expire-time} accepts:
1507
1508 @table @var
1509 @item now
1510 Invalidate password instantly.
1511
1512 @item never
1513 Password stays valid forever.
1514
1515 @item +nsec
1516 Password stays valid for @var{nsec} seconds starting now.
1517
1518 @item nsec
1519 Password is invalidated at the given time.  @var{nsec} are the seconds
1520 passed since 1970, i.e. unix epoch.
1521
1522 @end table
1523 ETEXI
1524
1525     {
1526         .name       = "chardev-add",
1527         .args_type  = "args:s",
1528         .params     = "args",
1529         .help       = "add chardev",
1530         .mhandler.cmd = hmp_chardev_add,
1531     },
1532
1533 STEXI
1534 @item chardev_add args
1535 @findex chardev_add
1536
1537 chardev_add accepts the same parameters as the -chardev command line switch.
1538
1539 ETEXI
1540
1541     {
1542         .name       = "chardev-remove",
1543         .args_type  = "id:s",
1544         .params     = "id",
1545         .help       = "remove chardev",
1546         .mhandler.cmd = hmp_chardev_remove,
1547     },
1548
1549 STEXI
1550 @item chardev_remove id
1551 @findex chardev_remove
1552
1553 Removes the chardev @var{id}.
1554
1555 ETEXI
1556
1557     {
1558         .name       = "info",
1559         .args_type  = "item:s?",
1560         .params     = "[subcommand]",
1561         .help       = "show various information about the system state",
1562         .mhandler.cmd = do_info_help,
1563         .sub_table = info_cmds,
1564     },
1565
1566 STEXI
1567 @item info @var{subcommand}
1568 @findex info
1569 Show various information about the system state.
1570
1571 @table @option
1572 @item info version
1573 show the version of QEMU
1574 @item info network
1575 show the various VLANs and the associated devices
1576 @item info chardev
1577 show the character devices
1578 @item info block
1579 show the block devices
1580 @item info blockstats
1581 show block device statistics
1582 @item info registers
1583 show the cpu registers
1584 @item info cpus
1585 show infos for each CPU
1586 @item info history
1587 show the command line history
1588 @item info irq
1589 show the interrupts statistics (if available)
1590 @item info pic
1591 show i8259 (PIC) state
1592 @item info pci
1593 show emulated PCI device info
1594 @item info tlb
1595 show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1596 @item info mem
1597 show the active virtual memory mappings (i386 only)
1598 @item info jit
1599 show dynamic compiler info
1600 @item info numa
1601 show NUMA information
1602 @item info kvm
1603 show KVM information
1604 @item info usb
1605 show USB devices plugged on the virtual USB hub
1606 @item info usbhost
1607 show all USB host devices
1608 @item info profile
1609 show profiling information
1610 @item info capture
1611 show information about active capturing
1612 @item info snapshots
1613 show list of VM snapshots
1614 @item info status
1615 show the current VM status (running|paused)
1616 @item info pcmcia
1617 show guest PCMCIA status
1618 @item info mice
1619 show which guest mouse is receiving events
1620 @item info vnc
1621 show the vnc server status
1622 @item info name
1623 show the current VM name
1624 @item info uuid
1625 show the current VM UUID
1626 @item info cpustats
1627 show CPU statistics
1628 @item info usernet
1629 show user network stack connection states
1630 @item info migrate
1631 show migration status
1632 @item info migrate_capabilities
1633 show current migration capabilities
1634 @item info migrate_cache_size
1635 show current migration XBZRLE cache size
1636 @item info balloon
1637 show balloon information
1638 @item info qtree
1639 show device tree
1640 @item info qdm
1641 show qdev device model list
1642 @item info roms
1643 show roms
1644 @item info tpm
1645 show the TPM device
1646 @end table
1647 ETEXI
1648
1649 STEXI
1650 @item info trace-events
1651 show available trace events and their state
1652 ETEXI
1653
1654 STEXI
1655 @end table
1656 ETEXI