hmp-commands.hx

   1 HXCOMM Use DEFHEADING() to define headings in both help text and rST.
   2 HXCOMM Text between SRST and ERST is copied to the rST 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 rST and C.
   7
   8
   9     {
  10         .name       = "help|?",
  11         .args_type  = "name:S?",
  12         .params     = "[cmd]",
  13         .help       = "show the help",
  14         .cmd        = do_help_cmd,
  15         .flags      = "p",
  16     },
  17
  18 SRST
  19 ``help`` or ``?`` [*cmd*]
  20   Show the help for all commands or just for command *cmd*.
  21 ERST
  22
  23     {
  24         .name       = "commit",
  25         .args_type  = "device:B",
  26         .params     = "device|all",
  27         .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
  28         .cmd        = hmp_commit,
  29     },
  30
  31 SRST
  32 ``commit``
  33   Commit changes to the disk images (if -snapshot is used) or backing files.
  34   If the backing file is smaller than the snapshot, then the backing file
  35   will be resized to be the same size as the snapshot.  If the snapshot is
  36   smaller than the backing file, the backing file will not be truncated.
  37   If you want the backing file to match the size of the smaller snapshot,
  38   you can safely truncate it yourself once the commit operation successfully
  39   completes.
  40 ERST
  41
  42     {
  43         .name       = "q|quit",
  44         .args_type  = "",
  45         .params     = "",
  46         .help       = "quit the emulator",
  47         .cmd        = hmp_quit,
  48     },
  49
  50 SRST
  51 ``q`` or ``quit``
  52   Quit the emulator.
  53 ERST
  54
  55     {
  56         .name       = "exit_preconfig",
  57         .args_type  = "",
  58         .params     = "",
  59         .help       = "exit the preconfig state",
  60         .cmd        = hmp_exit_preconfig,
  61         .flags      = "p",
  62     },
  63
  64 SRST
  65 ``exit_preconfig``
  66   This command makes QEMU exit the preconfig state and proceed with
  67   VM initialization using configuration data provided on the command line
  68   and via the QMP monitor during the preconfig state. The command is only
  69   available during the preconfig state (i.e. when the --preconfig command
  70   line option was in use).
  71 ERST
  72
  73     {
  74         .name       = "block_resize",
  75         .args_type  = "device:B,size:o",
  76         .params     = "device size",
  77         .help       = "resize a block image",
  78         .cmd        = hmp_block_resize,
  79     },
  80
  81 SRST
  82 ``block_resize``
  83   Resize a block image while a guest is running.  Usually requires guest
  84   action to see the updated size.  Resize to a lower size is supported,
  85   but should be used with extreme caution.  Note that this command only
  86   resizes image files, it can not resize block devices like LVM volumes.
  87 ERST
  88
  89     {
  90         .name       = "block_stream",
  91         .args_type  = "device:B,speed:o?,base:s?",
  92         .params     = "device [speed [base]]",
  93         .help       = "copy data from a backing file into a block device",
  94         .cmd        = hmp_block_stream,
  95     },
  96
  97 SRST
  98 ``block_stream``
  99   Copy data from a backing file into a block device.
 100 ERST
 101
 102     {
 103         .name       = "block_job_set_speed",
 104         .args_type  = "device:B,speed:o",
 105         .params     = "device speed",
 106         .help       = "set maximum speed for a background block operation",
 107         .cmd        = hmp_block_job_set_speed,
 108     },
 109
 110 SRST
 111 ``block_job_set_speed``
 112   Set maximum speed for a background block operation.
 113 ERST
 114
 115     {
 116         .name       = "block_job_cancel",
 117         .args_type  = "force:-f,device:B",
 118         .params     = "[-f] device",
 119         .help       = "stop an active background block operation (use -f"
 120                       "\n\t\t\t if you want to abort the operation immediately"
 121                       "\n\t\t\t instead of keep running until data is in sync)",
 122         .cmd        = hmp_block_job_cancel,
 123     },
 124
 125 SRST
 126 ``block_job_cancel``
 127   Stop an active background block operation (streaming, mirroring).
 128 ERST
 129
 130     {
 131         .name       = "block_job_complete",
 132         .args_type  = "device:B",
 133         .params     = "device",
 134         .help       = "stop an active background block operation",
 135         .cmd        = hmp_block_job_complete,
 136     },
 137
 138 SRST
 139 ``block_job_complete``
 140   Manually trigger completion of an active background block operation.
 141   For mirroring, this will switch the device to the destination path.
 142 ERST
 143
 144     {
 145         .name       = "block_job_pause",
 146         .args_type  = "device:B",
 147         .params     = "device",
 148         .help       = "pause an active background block operation",
 149         .cmd        = hmp_block_job_pause,
 150     },
 151
 152 SRST
 153 ``block_job_pause``
 154   Pause an active block streaming operation.
 155 ERST
 156
 157     {
 158         .name       = "block_job_resume",
 159         .args_type  = "device:B",
 160         .params     = "device",
 161         .help       = "resume a paused background block operation",
 162         .cmd        = hmp_block_job_resume,
 163     },
 164
 165 SRST
 166 ``block_job_resume``
 167   Resume a paused block streaming operation.
 168 ERST
 169
 170     {
 171         .name       = "eject",
 172         .args_type  = "force:-f,device:B",
 173         .params     = "[-f] device",
 174         .help       = "eject a removable medium (use -f to force it)",
 175         .cmd        = hmp_eject,
 176     },
 177
 178 SRST
 179 ``eject [-f]`` *device*
 180   Eject a removable medium (use -f to force it).
 181 ERST
 182
 183     {
 184         .name       = "drive_del",
 185         .args_type  = "id:B",
 186         .params     = "device",
 187         .help       = "remove host block device",
 188         .cmd        = hmp_drive_del,
 189     },
 190
 191 SRST
 192 ``drive_del`` *device*
 193   Remove host block device.  The result is that guest generated IO is no longer
 194   submitted against the host device underlying the disk.  Once a drive has
 195   been deleted, the QEMU Block layer returns -EIO which results in IO
 196   errors in the guest for applications that are reading/writing to the device.
 197   These errors are always reported to the guest, regardless of the drive's error
 198   actions (drive options rerror, werror).
 199 ERST
 200
 201     {
 202         .name       = "change",
 203         .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
 204         .params     = "device filename [format [read-only-mode]]",
 205         .help       = "change a removable medium, optional format",
 206         .cmd        = hmp_change,
 207     },
 208
 209 SRST
 210 ``change`` *device* *setting*
 211   Change the configuration of a device.
 212
 213   ``change`` *diskdevice* *filename* [*format* [*read-only-mode*]]
 214     Change the medium for a removable disk device to point to *filename*. eg::
 215
 216       (qemu) change ide1-cd0 /path/to/some.iso
 217
 218     *format* is optional.
 219
 220     *read-only-mode* may be used to change the read-only status of the device.
 221     It accepts the following values:
 222
 223     retain
 224       Retains the current status; this is the default.
 225
 226     read-only
 227       Makes the device read-only.
 228
 229     read-write
 230       Makes the device writable.
 231
 232   ``change vnc`` *display*,\ *options*
 233     Change the configuration of the VNC server. The valid syntax for *display*
 234     and *options* are described at :ref:`sec_005finvocation`. eg::
 235
 236       (qemu) change vnc localhost:1
 237
 238   ``change vnc password`` [*password*]
 239
 240     Change the password associated with the VNC server. If the new password
 241     is not supplied, the monitor will prompt for it to be entered. VNC
 242     passwords are only significant up to 8 letters. eg::
 243
 244       (qemu) change vnc password
 245       Password: ********
 246
 247 ERST
 248
 249     {
 250         .name       = "screendump",
 251         .args_type  = "filename:F,device:s?,head:i?",
 252         .params     = "filename [device [head]]",
 253         .help       = "save screen from head 'head' of display device 'device' "
 254                       "into PPM image 'filename'",
 255         .cmd        = hmp_screendump,
 256     },
 257
 258 SRST
 259 ``screendump`` *filename*
 260   Save screen into PPM image *filename*.
 261 ERST
 262
 263     {
 264         .name       = "logfile",
 265         .args_type  = "filename:F",
 266         .params     = "filename",
 267         .help       = "output logs to 'filename'",
 268         .cmd        = hmp_logfile,
 269     },
 270
 271 SRST
 272 ``logfile`` *filename*
 273   Output logs to *filename*.
 274 ERST
 275
 276     {
 277         .name       = "trace-event",
 278         .args_type  = "name:s,option:b,vcpu:i?",
 279         .params     = "name on|off [vcpu]",
 280         .help       = "changes status of a specific trace event "
 281                       "(vcpu: vCPU to set, default is all)",
 282         .cmd = hmp_trace_event,
 283         .command_completion = trace_event_completion,
 284     },
 285
 286 SRST
 287 ``trace-event``
 288   changes status of a trace event
 289 ERST
 290
 291 #if defined(CONFIG_TRACE_SIMPLE)
 292     {
 293         .name       = "trace-file",
 294         .args_type  = "op:s?,arg:F?",
 295         .params     = "on|off|flush|set [arg]",
 296         .help       = "open, close, or flush trace file, or set a new file name",
 297         .cmd        = hmp_trace_file,
 298     },
 299
 300 SRST
 301 ``trace-file on|off|flush``
 302   Open, close, or flush the trace file.  If no argument is given, the
 303   status of the trace file is displayed.
 304 ERST
 305 #endif
 306
 307     {
 308         .name       = "log",
 309         .args_type  = "items:s",
 310         .params     = "item1[,...]",
 311         .help       = "activate logging of the specified items",
 312         .cmd        = hmp_log,
 313     },
 314
 315 SRST
 316 ``log`` *item1*\ [,...]
 317   Activate logging of the specified items.
 318 ERST
 319
 320     {
 321         .name       = "savevm",
 322         .args_type  = "name:s?",
 323         .params     = "tag",
 324         .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
 325         .cmd        = hmp_savevm,
 326     },
 327
 328 SRST
 329 ``savevm`` *tag*
 330   Create a snapshot of the whole virtual machine. If *tag* is
 331   provided, it is used as human readable identifier. If there is already
 332   a snapshot with the same tag, it is replaced. More info at
 333   :ref:`vm_005fsnapshots`.
 334
 335   Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
 336   only *tag* as parameter.
 337 ERST
 338
 339     {
 340         .name       = "loadvm",
 341         .args_type  = "name:s",
 342         .params     = "tag",
 343         .help       = "restore a VM snapshot from its tag",
 344         .cmd        = hmp_loadvm,
 345         .command_completion = loadvm_completion,
 346     },
 347
 348 SRST
 349 ``loadvm`` *tag*
 350   Set the whole virtual machine to the snapshot identified by the tag
 351   *tag*.
 352
 353   Since 4.0, loadvm stopped accepting snapshot id as parameter.
 354 ERST
 355
 356     {
 357         .name       = "delvm",
 358         .args_type  = "name:s",
 359         .params     = "tag",
 360         .help       = "delete a VM snapshot from its tag",
 361         .cmd        = hmp_delvm,
 362         .command_completion = delvm_completion,
 363     },
 364
 365 SRST
 366 ``delvm`` *tag*
 367   Delete the snapshot identified by *tag*.
 368
 369   Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
 370   only *tag* as parameter.
 371 ERST
 372
 373     {
 374         .name       = "singlestep",
 375         .args_type  = "option:s?",
 376         .params     = "[on|off]",
 377         .help       = "run emulation in singlestep mode or switch to normal mode",
 378         .cmd        = hmp_singlestep,
 379     },
 380
 381 SRST
 382 ``singlestep [off]``
 383   Run the emulation in single step mode.
 384   If called with option off, the emulation returns to normal mode.
 385 ERST
 386
 387     {
 388         .name       = "stop",
 389         .args_type  = "",
 390         .params     = "",
 391         .help       = "stop emulation",
 392         .cmd        = hmp_stop,
 393     },
 394
 395 SRST
 396 ``stop``
 397   Stop emulation.
 398 ERST
 399
 400     {
 401         .name       = "c|cont",
 402         .args_type  = "",
 403         .params     = "",
 404         .help       = "resume emulation",
 405         .cmd        = hmp_cont,
 406     },
 407
 408 SRST
 409 ``c`` or ``cont``
 410   Resume emulation.
 411 ERST
 412
 413     {
 414         .name       = "system_wakeup",
 415         .args_type  = "",
 416         .params     = "",
 417         .help       = "wakeup guest from suspend",
 418         .cmd        = hmp_system_wakeup,
 419     },
 420
 421 SRST
 422 ``system_wakeup``
 423   Wakeup guest from suspend.
 424 ERST
 425
 426     {
 427         .name       = "gdbserver",
 428         .args_type  = "device:s?",
 429         .params     = "[device]",
 430         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 431         .cmd        = hmp_gdbserver,
 432     },
 433
 434 SRST
 435 ``gdbserver`` [*port*]
 436   Start gdbserver session (default *port*\=1234)
 437 ERST
 438
 439     {
 440         .name       = "x",
 441         .args_type  = "fmt:/,addr:l",
 442         .params     = "/fmt addr",
 443         .help       = "virtual memory dump starting at 'addr'",
 444         .cmd        = hmp_memory_dump,
 445     },
 446
 447 SRST
 448 ``x/``\ *fmt* *addr*
 449   Virtual memory dump starting at *addr*.
 450 ERST
 451
 452     {
 453         .name       = "xp",
 454         .args_type  = "fmt:/,addr:l",
 455         .params     = "/fmt addr",
 456         .help       = "physical memory dump starting at 'addr'",
 457         .cmd        = hmp_physical_memory_dump,
 458     },
 459
 460 SRST
 461 ``xp /``\ *fmt* *addr*
 462   Physical memory dump starting at *addr*.
 463
 464   *fmt* is a format which tells the command how to format the
 465   data. Its syntax is: ``/{count}{format}{size}``
 466
 467   *count*
 468     is the number of items to be dumped.
 469   *format*
 470     can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 471     c (char) or i (asm instruction).
 472   *size*
 473     can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 474     ``h`` or ``w`` can be specified with the ``i`` format to
 475     respectively select 16 or 32 bit code instruction size.
 476
 477   Examples:
 478
 479   Dump 10 instructions at the current instruction pointer::
 480
 481     (qemu) x/10i $eip
 482     0x90107063:  ret
 483     0x90107064:  sti
 484     0x90107065:  lea    0x0(%esi,1),%esi
 485     0x90107069:  lea    0x0(%edi,1),%edi
 486     0x90107070:  ret
 487     0x90107071:  jmp    0x90107080
 488     0x90107073:  nop
 489     0x90107074:  nop
 490     0x90107075:  nop
 491     0x90107076:  nop
 492
 493   Dump 80 16 bit values at the start of the video memory::
 494
 495     (qemu) xp/80hx 0xb8000
 496     0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 497     0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 498     0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 499     0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 500     0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 501     0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 502     0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 503     0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 504     0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 505     0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 506
 507 ERST
 508
 509     {
 510         .name       = "gpa2hva",
 511         .args_type  = "addr:l",
 512         .params     = "addr",
 513         .help       = "print the host virtual address corresponding to a guest physical address",
 514         .cmd        = hmp_gpa2hva,
 515     },
 516
 517 SRST
 518 ``gpa2hva`` *addr*
 519   Print the host virtual address at which the guest's physical address *addr*
 520   is mapped.
 521 ERST
 522
 523 #ifdef CONFIG_LINUX
 524     {
 525         .name       = "gpa2hpa",
 526         .args_type  = "addr:l",
 527         .params     = "addr",
 528         .help       = "print the host physical address corresponding to a guest physical address",
 529         .cmd        = hmp_gpa2hpa,
 530     },
 531 #endif
 532
 533 SRST
 534 ``gpa2hpa`` *addr*
 535   Print the host physical address at which the guest's physical address *addr*
 536   is mapped.
 537 ERST
 538
 539     {
 540         .name       = "gva2gpa",
 541         .args_type  = "addr:l",
 542         .params     = "addr",
 543         .help       = "print the guest physical address corresponding to a guest virtual address",
 544         .cmd        = hmp_gva2gpa,
 545     },
 546
 547 SRST
 548 ``gva2gpa`` *addr*
 549   Print the guest physical address at which the guest's virtual address *addr*
 550   is mapped based on the mapping for the current CPU.
 551 ERST
 552
 553     {
 554         .name       = "p|print",
 555         .args_type  = "fmt:/,val:l",
 556         .params     = "/fmt expr",
 557         .help       = "print expression value (use $reg for CPU register access)",
 558         .cmd        = do_print,
 559     },
 560
 561 SRST
 562 ``p`` or ``print/``\ *fmt* *expr*
 563   Print expression value. Only the *format* part of *fmt* is
 564   used.
 565 ERST
 566
 567     {
 568         .name       = "i",
 569         .args_type  = "fmt:/,addr:i,index:i.",
 570         .params     = "/fmt addr",
 571         .help       = "I/O port read",
 572         .cmd        = hmp_ioport_read,
 573     },
 574
 575 SRST
 576 ``i/``\ *fmt* *addr* [.\ *index*\ ]
 577   Read I/O port.
 578 ERST
 579
 580     {
 581         .name       = "o",
 582         .args_type  = "fmt:/,addr:i,val:i",
 583         .params     = "/fmt addr value",
 584         .help       = "I/O port write",
 585         .cmd        = hmp_ioport_write,
 586     },
 587
 588 SRST
 589 ``o/``\ *fmt* *addr* *val*
 590   Write to I/O port.
 591 ERST
 592
 593     {
 594         .name       = "sendkey",
 595         .args_type  = "keys:s,hold-time:i?",
 596         .params     = "keys [hold_ms]",
 597         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 598         .cmd        = hmp_sendkey,
 599         .command_completion = sendkey_completion,
 600     },
 601
 602 SRST
 603 ``sendkey`` *keys*
 604   Send *keys* to the guest. *keys* could be the name of the
 605   key or the raw value in hexadecimal format. Use ``-`` to press
 606   several keys simultaneously. Example::
 607
 608     sendkey ctrl-alt-f1
 609
 610   This command is useful to send keys that your graphical user interface
 611   intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
 612 ERST
 613     {
 614         .name       = "sync-profile",
 615         .args_type  = "op:s?",
 616         .params     = "[on|off|reset]",
 617         .help       = "enable, disable or reset synchronization profiling. "
 618                       "With no arguments, prints whether profiling is on or off.",
 619         .cmd        = hmp_sync_profile,
 620     },
 621
 622 SRST
 623 ``sync-profile [on|off|reset]``
 624   Enable, disable or reset synchronization profiling. With no arguments, prints
 625   whether profiling is on or off.
 626 ERST
 627
 628     {
 629         .name       = "system_reset",
 630         .args_type  = "",
 631         .params     = "",
 632         .help       = "reset the system",
 633         .cmd        = hmp_system_reset,
 634     },
 635
 636 SRST
 637 ``system_reset``
 638   Reset the system.
 639 ERST
 640
 641     {
 642         .name       = "system_powerdown",
 643         .args_type  = "",
 644         .params     = "",
 645         .help       = "send system power down event",
 646         .cmd        = hmp_system_powerdown,
 647     },
 648
 649 SRST
 650 ``system_powerdown``
 651   Power down the system (if supported).
 652 ERST
 653
 654     {
 655         .name       = "sum",
 656         .args_type  = "start:i,size:i",
 657         .params     = "addr size",
 658         .help       = "compute the checksum of a memory region",
 659         .cmd        = hmp_sum,
 660     },
 661
 662 SRST
 663 ``sum`` *addr* *size*
 664   Compute the checksum of a memory region.
 665 ERST
 666
 667     {
 668         .name       = "device_add",
 669         .args_type  = "device:O",
 670         .params     = "driver[,prop=value][,...]",
 671         .help       = "add device, like -device on the command line",
 672         .cmd        = hmp_device_add,
 673         .command_completion = device_add_completion,
 674     },
 675
 676 SRST
 677 ``device_add`` *config*
 678   Add device.
 679 ERST
 680
 681     {
 682         .name       = "device_del",
 683         .args_type  = "id:s",
 684         .params     = "device",
 685         .help       = "remove device",
 686         .cmd        = hmp_device_del,
 687         .command_completion = device_del_completion,
 688     },
 689
 690 SRST
 691 ``device_del`` *id*
 692   Remove device *id*. *id* may be a short ID
 693   or a QOM object path.
 694 ERST
 695
 696     {
 697         .name       = "cpu",
 698         .args_type  = "index:i",
 699         .params     = "index",
 700         .help       = "set the default CPU",
 701         .cmd        = hmp_cpu,
 702     },
 703
 704 SRST
 705 ``cpu`` *index*
 706   Set the default CPU.
 707 ERST
 708
 709     {
 710         .name       = "mouse_move",
 711         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 712         .params     = "dx dy [dz]",
 713         .help       = "send mouse move events",
 714         .cmd        = hmp_mouse_move,
 715     },
 716
 717 SRST
 718 ``mouse_move`` *dx* *dy* [*dz*]
 719   Move the active mouse to the specified coordinates *dx* *dy*
 720   with optional scroll axis *dz*.
 721 ERST
 722
 723     {
 724         .name       = "mouse_button",
 725         .args_type  = "button_state:i",
 726         .params     = "state",
 727         .help       = "change mouse button state (1=L, 2=M, 4=R)",
 728         .cmd        = hmp_mouse_button,
 729     },
 730
 731 SRST
 732 ``mouse_button`` *val*
 733   Change the active mouse button state *val* (1=L, 2=M, 4=R).
 734 ERST
 735
 736     {
 737         .name       = "mouse_set",
 738         .args_type  = "index:i",
 739         .params     = "index",
 740         .help       = "set which mouse device receives events",
 741         .cmd        = hmp_mouse_set,
 742     },
 743
 744 SRST
 745 ``mouse_set`` *index*
 746   Set which mouse device receives events at given *index*, index
 747   can be obtained with::
 748
 749     info mice
 750
 751 ERST
 752
 753     {
 754         .name       = "wavcapture",
 755         .args_type  = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
 756         .params     = "path audiodev [frequency [bits [channels]]]",
 757         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 758         .cmd        = hmp_wavcapture,
 759     },
 760 SRST
 761 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
 762   Capture audio into *filename* from *audiodev*, using sample rate
 763   *frequency* bits per sample *bits* and number of channels
 764   *channels*.
 765
 766   Defaults:
 767
 768   - Sample rate = 44100 Hz - CD quality
 769   - Bits = 16
 770   - Number of channels = 2 - Stereo
 771 ERST
 772
 773     {
 774         .name       = "stopcapture",
 775         .args_type  = "n:i",
 776         .params     = "capture index",
 777         .help       = "stop capture",
 778         .cmd        = hmp_stopcapture,
 779     },
 780 SRST
 781 ``stopcapture`` *index*
 782   Stop capture with a given *index*, index can be obtained with::
 783
 784     info capture
 785
 786 ERST
 787
 788     {
 789         .name       = "memsave",
 790         .args_type  = "val:l,size:i,filename:s",
 791         .params     = "addr size file",
 792         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 793         .cmd        = hmp_memsave,
 794     },
 795
 796 SRST
 797 ``memsave`` *addr* *size* *file*
 798   save to disk virtual memory dump starting at *addr* of size *size*.
 799 ERST
 800
 801     {
 802         .name       = "pmemsave",
 803         .args_type  = "val:l,size:i,filename:s",
 804         .params     = "addr size file",
 805         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 806         .cmd        = hmp_pmemsave,
 807     },
 808
 809 SRST
 810 ``pmemsave`` *addr* *size* *file*
 811   save to disk physical memory dump starting at *addr* of size *size*.
 812 ERST
 813
 814     {
 815         .name       = "boot_set",
 816         .args_type  = "bootdevice:s",
 817         .params     = "bootdevice",
 818         .help       = "define new values for the boot device list",
 819         .cmd        = hmp_boot_set,
 820     },
 821
 822 SRST
 823 ``boot_set`` *bootdevicelist*
 824   Define new values for the boot device list. Those values will override
 825   the values specified on the command line through the ``-boot`` option.
 826
 827   The values that can be specified here depend on the machine type, but are
 828   the same that can be specified in the ``-boot`` command line option.
 829 ERST
 830
 831     {
 832         .name       = "nmi",
 833         .args_type  = "",
 834         .params     = "",
 835         .help       = "inject an NMI",
 836         .cmd        = hmp_nmi,
 837     },
 838 SRST
 839 ``nmi`` *cpu*
 840   Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
 841 ERST
 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         .cmd        = hmp_ringbuf_write,
 849         .command_completion = ringbuf_write_completion,
 850     },
 851
 852 SRST
 853 ``ringbuf_write`` *device* *data*
 854   Write *data* to ring buffer character device *device*.
 855   *data* must be a UTF-8 string.
 856 ERST
 857
 858     {
 859         .name       = "ringbuf_read",
 860         .args_type  = "device:s,size:i",
 861         .params     = "device size",
 862         .help       = "Read from a ring buffer character device",
 863         .cmd        = hmp_ringbuf_read,
 864         .command_completion = ringbuf_write_completion,
 865     },
 866
 867 SRST
 868 ``ringbuf_read`` *device*
 869   Read and print up to *size* bytes from ring buffer character
 870   device *device*.
 871   Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
 872   character code in hexadecimal.  Character ``\`` is printed ``\\``.
 873   Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 874   NUL characters, after the ring buffer lost data, and when reading
 875   stops because the size limit is reached.
 876 ERST
 877
 878     {
 879         .name       = "announce_self",
 880         .args_type  = "interfaces:s?,id:s?",
 881         .params     = "[interfaces] [id]",
 882         .help       = "Trigger GARP/RARP announcements",
 883         .cmd        = hmp_announce_self,
 884     },
 885
 886 SRST
 887 ``announce_self``
 888   Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
 889   updating the network infrastructure after a reconfiguration or some forms
 890   of migration. The timings of the round are set by the migration announce
 891   parameters. An optional comma separated *interfaces* list restricts the
 892   announce to the named set of interfaces. An optional *id* can be used to
 893   start a separate announce timer and to change the parameters of it later.
 894 ERST
 895
 896     {
 897         .name       = "migrate",
 898         .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
 899         .params     = "[-d] [-b] [-i] [-r] uri",
 900         .help       = "migrate to URI (using -d to not wait for completion)"
 901                       "\n\t\t\t -b for migration without shared storage with"
 902                       " full copy of disk\n\t\t\t -i for migration without "
 903                       "shared storage with incremental copy of disk "
 904                       "(base image shared between src and destination)"
 905                       "\n\t\t\t -r to resume a paused migration",
 906         .cmd        = hmp_migrate,
 907     },
 908
 909
 910 SRST
 911 ``migrate [-d] [-b] [-i]`` *uri*
 912   Migrate to *uri* (using -d to not wait for completion).
 913
 914   ``-b``
 915     for migration with full copy of disk
 916   ``-i``
 917     for migration with incremental copy of disk (base image is shared)
 918 ERST
 919
 920     {
 921         .name       = "migrate_cancel",
 922         .args_type  = "",
 923         .params     = "",
 924         .help       = "cancel the current VM migration",
 925         .cmd        = hmp_migrate_cancel,
 926     },
 927
 928 SRST
 929 ``migrate_cancel``
 930   Cancel the current VM migration.
 931 ERST
 932
 933     {
 934         .name       = "migrate_continue",
 935         .args_type  = "state:s",
 936         .params     = "state",
 937         .help       = "Continue migration from the given paused state",
 938         .cmd        = hmp_migrate_continue,
 939     },
 940 SRST
 941 ``migrate_continue`` *state*
 942   Continue migration from the paused state *state*
 943 ERST
 944
 945     {
 946         .name       = "migrate_incoming",
 947         .args_type  = "uri:s",
 948         .params     = "uri",
 949         .help       = "Continue an incoming migration from an -incoming defer",
 950         .cmd        = hmp_migrate_incoming,
 951     },
 952
 953 SRST
 954 ``migrate_incoming`` *uri*
 955   Continue an incoming migration using the *uri* (that has the same syntax
 956   as the ``-incoming`` option).
 957 ERST
 958
 959     {
 960         .name       = "migrate_recover",
 961         .args_type  = "uri:s",
 962         .params     = "uri",
 963         .help       = "Continue a paused incoming postcopy migration",
 964         .cmd        = hmp_migrate_recover,
 965     },
 966
 967 SRST
 968 ``migrate_recover`` *uri*
 969   Continue a paused incoming postcopy migration using the *uri*.
 970 ERST
 971
 972     {
 973         .name       = "migrate_pause",
 974         .args_type  = "",
 975         .params     = "",
 976         .help       = "Pause an ongoing migration (postcopy-only)",
 977         .cmd        = hmp_migrate_pause,
 978     },
 979
 980 SRST
 981 ``migrate_pause``
 982   Pause an ongoing migration.  Currently it only supports postcopy.
 983 ERST
 984
 985     {
 986         .name       = "migrate_set_cache_size",
 987         .args_type  = "value:o",
 988         .params     = "value",
 989         .help       = "set cache size (in bytes) for XBZRLE migrations,"
 990                       "the cache size will be rounded down to the nearest "
 991                       "power of 2.\n"
 992                       "The cache size affects the number of cache misses."
 993                       "In case of a high cache miss ratio you need to increase"
 994                       " the cache size",
 995         .cmd        = hmp_migrate_set_cache_size,
 996     },
 997
 998 SRST
 999 ``migrate_set_cache_size`` *value*
1000   Set cache size to *value* (in bytes) for xbzrle migrations.
1001 ERST
1002
1003     {
1004         .name       = "migrate_set_speed",
1005         .args_type  = "value:o",
1006         .params     = "value",
1007         .help       = "set maximum speed (in bytes) for migrations. "
1008         "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1009         .cmd        = hmp_migrate_set_speed,
1010     },
1011
1012 SRST
1013 ``migrate_set_speed`` *value*
1014   Set maximum speed to *value* (in bytes) for migrations.
1015 ERST
1016
1017     {
1018         .name       = "migrate_set_downtime",
1019         .args_type  = "value:T",
1020         .params     = "value",
1021         .help       = "set maximum tolerated downtime (in seconds) for migrations",
1022         .cmd        = hmp_migrate_set_downtime,
1023     },
1024
1025 SRST
1026 ``migrate_set_downtime`` *second*
1027   Set maximum tolerated downtime (in seconds) for migration.
1028 ERST
1029
1030     {
1031         .name       = "migrate_set_capability",
1032         .args_type  = "capability:s,state:b",
1033         .params     = "capability state",
1034         .help       = "Enable/Disable the usage of a capability for migration",
1035         .cmd        = hmp_migrate_set_capability,
1036         .command_completion = migrate_set_capability_completion,
1037     },
1038
1039 SRST
1040 ``migrate_set_capability`` *capability* *state*
1041   Enable/Disable the usage of a capability *capability* for migration.
1042 ERST
1043
1044     {
1045         .name       = "migrate_set_parameter",
1046         .args_type  = "parameter:s,value:s",
1047         .params     = "parameter value",
1048         .help       = "Set the parameter for migration",
1049         .cmd        = hmp_migrate_set_parameter,
1050         .command_completion = migrate_set_parameter_completion,
1051     },
1052
1053 SRST
1054 ``migrate_set_parameter`` *parameter* *value*
1055   Set the parameter *parameter* for migration.
1056 ERST
1057
1058     {
1059         .name       = "migrate_start_postcopy",
1060         .args_type  = "",
1061         .params     = "",
1062         .help       = "Followup to a migration command to switch the migration"
1063                       " to postcopy mode. The postcopy-ram capability must "
1064                       "be set on both source and destination before the "
1065                       "original migration command .",
1066         .cmd        = hmp_migrate_start_postcopy,
1067     },
1068
1069 SRST
1070 ``migrate_start_postcopy``
1071   Switch in-progress migration to postcopy mode. Ignored after the end of
1072   migration (or once already in postcopy).
1073 ERST
1074
1075     {
1076         .name       = "x_colo_lost_heartbeat",
1077         .args_type  = "",
1078         .params     = "",
1079         .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1080                       "a failover or takeover is needed.",
1081         .cmd = hmp_x_colo_lost_heartbeat,
1082     },
1083
1084 SRST
1085 ``x_colo_lost_heartbeat``
1086   Tell COLO that heartbeat is lost, a failover or takeover is needed.
1087 ERST
1088
1089     {
1090         .name       = "client_migrate_info",
1091         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1092         .params     = "protocol hostname port tls-port cert-subject",
1093         .help       = "set migration information for remote display",
1094         .cmd        = hmp_client_migrate_info,
1095     },
1096
1097 SRST
1098 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1099   Set migration information for remote display.  This makes the server
1100   ask the client to automatically reconnect using the new parameters
1101   once migration finished successfully.  Only implemented for SPICE.
1102 ERST
1103
1104     {
1105         .name       = "dump-guest-memory",
1106         .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1107         .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1108         .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1109                       "-p: do paging to get guest's memory mapping.\n\t\t\t"
1110                       "-d: return immediately (do not wait for completion).\n\t\t\t"
1111                       "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1112                       "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1113                       "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1114                       "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1115                       "    for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1116                       "begin: the starting physical address.\n\t\t\t"
1117                       "length: the memory size, in bytes.",
1118         .cmd        = hmp_dump_guest_memory,
1119     },
1120
1121 SRST
1122 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1123   \
1124 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1125   Dump guest memory to *protocol*. The file can be processed with crash or
1126   gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1127
1128   ``-p``
1129     do paging to get guest's memory mapping.
1130   ``-z``
1131     dump in kdump-compressed format, with zlib compression.
1132   ``-l``
1133     dump in kdump-compressed format, with lzo compression.
1134   ``-s``
1135     dump in kdump-compressed format, with snappy compression.
1136   ``-w``
1137     dump in Windows crashdump format (can be used instead of ELF-dump converting),
1138     for Windows x64 guests with vmcoreinfo driver only
1139   *filename*
1140     dump file name.
1141   *begin*
1142     the starting physical address. It's optional, and should be
1143     specified together with *length*.
1144   *length*
1145     the memory size, in bytes. It's optional, and should be specified
1146     together with *begin*.
1147
1148 ERST
1149
1150 #if defined(TARGET_S390X)
1151     {
1152         .name       = "dump-skeys",
1153         .args_type  = "filename:F",
1154         .params     = "",
1155         .help       = "Save guest storage keys into file 'filename'.\n",
1156         .cmd        = hmp_dump_skeys,
1157     },
1158 #endif
1159
1160 SRST
1161 ``dump-skeys`` *filename*
1162   Save guest storage keys to a file.
1163 ERST
1164
1165 #if defined(TARGET_S390X)
1166     {
1167         .name       = "migration_mode",
1168         .args_type  = "mode:i",
1169         .params     = "mode",
1170         .help       = "Enables or disables migration mode\n",
1171         .cmd        = hmp_migrationmode,
1172     },
1173 #endif
1174
1175 SRST
1176 ``migration_mode`` *mode*
1177   Enables or disables migration mode.
1178 ERST
1179
1180     {
1181         .name       = "snapshot_blkdev",
1182         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1183         .params     = "[-n] device [new-image-file] [format]",
1184         .help       = "initiates a live snapshot\n\t\t\t"
1185                       "of device. If a new image file is specified, the\n\t\t\t"
1186                       "new image file will become the new root image.\n\t\t\t"
1187                       "If format is specified, the snapshot file will\n\t\t\t"
1188                       "be created in that format.\n\t\t\t"
1189                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1190                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
1191                       "recreating it from scratch.",
1192         .cmd        = hmp_snapshot_blkdev,
1193     },
1194
1195 SRST
1196 ``snapshot_blkdev``
1197   Snapshot device, using snapshot file as target if provided
1198 ERST
1199
1200     {
1201         .name       = "snapshot_blkdev_internal",
1202         .args_type  = "device:B,name:s",
1203         .params     = "device name",
1204         .help       = "take an internal snapshot of device.\n\t\t\t"
1205                       "The format of the image used by device must\n\t\t\t"
1206                       "support it, such as qcow2.\n\t\t\t",
1207         .cmd        = hmp_snapshot_blkdev_internal,
1208     },
1209
1210 SRST
1211 ``snapshot_blkdev_internal``
1212   Take an internal snapshot on device if it support
1213 ERST
1214
1215     {
1216         .name       = "snapshot_delete_blkdev_internal",
1217         .args_type  = "device:B,name:s,id:s?",
1218         .params     = "device name [id]",
1219         .help       = "delete an internal snapshot of device.\n\t\t\t"
1220                       "If id is specified, qemu will try delete\n\t\t\t"
1221                       "the snapshot matching both id and name.\n\t\t\t"
1222                       "The format of the image used by device must\n\t\t\t"
1223                       "support it, such as qcow2.\n\t\t\t",
1224         .cmd        = hmp_snapshot_delete_blkdev_internal,
1225     },
1226
1227 SRST
1228 ``snapshot_delete_blkdev_internal``
1229   Delete an internal snapshot on device if it support
1230 ERST
1231
1232     {
1233         .name       = "drive_mirror",
1234         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1235         .params     = "[-n] [-f] device target [format]",
1236         .help       = "initiates live storage\n\t\t\t"
1237                       "migration for a device. The device's contents are\n\t\t\t"
1238                       "copied to the new image file, including data that\n\t\t\t"
1239                       "is written after the command is started.\n\t\t\t"
1240                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1241                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1242                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1243                       "so that the result does not need a backing file.\n\t\t\t",
1244         .cmd        = hmp_drive_mirror,
1245     },
1246 SRST
1247 ``drive_mirror``
1248   Start mirroring a block device's writes to a new destination,
1249   using the specified target.
1250 ERST
1251
1252     {
1253         .name       = "drive_backup",
1254         .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1255         .params     = "[-n] [-f] [-c] device target [format]",
1256         .help       = "initiates a point-in-time\n\t\t\t"
1257                       "copy for a device. The device's contents are\n\t\t\t"
1258                       "copied to the new image file, excluding data that\n\t\t\t"
1259                       "is written after the command is started.\n\t\t\t"
1260                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1261                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1262                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1263                       "so that the result does not need a backing file.\n\t\t\t"
1264                       "The -c flag requests QEMU to compress backup data\n\t\t\t"
1265                       "(if the target format supports it).\n\t\t\t",
1266         .cmd        = hmp_drive_backup,
1267     },
1268 SRST
1269 ``drive_backup``
1270   Start a point-in-time copy of a block device to a specificed target.
1271 ERST
1272
1273     {
1274         .name       = "drive_add",
1275         .args_type  = "node:-n,pci_addr:s,opts:s",
1276         .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1277                       "[file=file][,if=type][,bus=n]\n"
1278                       "[,unit=m][,media=d][,index=i]\n"
1279                       "[,snapshot=on|off][,cache=on|off]\n"
1280                       "[,readonly=on|off][,copy-on-read=on|off]",
1281         .help       = "add drive to PCI storage controller",
1282         .cmd        = hmp_drive_add,
1283     },
1284
1285 SRST
1286 ``drive_add``
1287   Add drive to PCI storage controller.
1288 ERST
1289
1290     {
1291         .name       = "pcie_aer_inject_error",
1292         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1293                       "id:s,error_status:s,"
1294                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1295                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1296         .params     = "[-a] [-c] id "
1297                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1298         .help       = "inject pcie aer error\n\t\t\t"
1299                       " -a for advisory non fatal error\n\t\t\t"
1300                       " -c for correctable error\n\t\t\t"
1301                       "<id> = qdev device id\n\t\t\t"
1302                       "<error_status> = error string or 32bit\n\t\t\t"
1303                       "<tlb header> = 32bit x 4\n\t\t\t"
1304                       "<tlb header prefix> = 32bit x 4",
1305         .cmd        = hmp_pcie_aer_inject_error,
1306     },
1307
1308 SRST
1309 ``pcie_aer_inject_error``
1310   Inject PCIe AER error
1311 ERST
1312
1313     {
1314         .name       = "netdev_add",
1315         .args_type  = "netdev:O",
1316         .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1317         .help       = "add host network device",
1318         .cmd        = hmp_netdev_add,
1319         .command_completion = netdev_add_completion,
1320     },
1321
1322 SRST
1323 ``netdev_add``
1324   Add host network device.
1325 ERST
1326
1327     {
1328         .name       = "netdev_del",
1329         .args_type  = "id:s",
1330         .params     = "id",
1331         .help       = "remove host network device",
1332         .cmd        = hmp_netdev_del,
1333         .command_completion = netdev_del_completion,
1334     },
1335
1336 SRST
1337 ``netdev_del``
1338   Remove host network device.
1339 ERST
1340
1341     {
1342         .name       = "object_add",
1343         .args_type  = "object:O",
1344         .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1345         .help       = "create QOM object",
1346         .cmd        = hmp_object_add,
1347         .command_completion = object_add_completion,
1348     },
1349
1350 SRST
1351 ``object_add``
1352   Create QOM object.
1353 ERST
1354
1355     {
1356         .name       = "object_del",
1357         .args_type  = "id:s",
1358         .params     = "id",
1359         .help       = "destroy QOM object",
1360         .cmd        = hmp_object_del,
1361         .command_completion = object_del_completion,
1362     },
1363
1364 SRST
1365 ``object_del``
1366   Destroy QOM object.
1367 ERST
1368
1369 #ifdef CONFIG_SLIRP
1370     {
1371         .name       = "hostfwd_add",
1372         .args_type  = "arg1:s,arg2:s?",
1373         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1374         .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1375         .cmd        = hmp_hostfwd_add,
1376     },
1377 #endif
1378 SRST
1379 ``hostfwd_add``
1380   Redirect TCP or UDP connections from host to guest (requires -net user).
1381 ERST
1382
1383 #ifdef CONFIG_SLIRP
1384     {
1385         .name       = "hostfwd_remove",
1386         .args_type  = "arg1:s,arg2:s?",
1387         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1388         .help       = "remove host-to-guest TCP or UDP redirection",
1389         .cmd        = hmp_hostfwd_remove,
1390     },
1391
1392 #endif
1393 SRST
1394 ``hostfwd_remove``
1395   Remove host-to-guest TCP or UDP redirection.
1396 ERST
1397
1398     {
1399         .name       = "balloon",
1400         .args_type  = "value:M",
1401         .params     = "target",
1402         .help       = "request VM to change its memory allocation (in MB)",
1403         .cmd        = hmp_balloon,
1404     },
1405
1406 SRST
1407 ``balloon`` *value*
1408   Request VM to change its memory allocation to *value* (in MB).
1409 ERST
1410
1411     {
1412         .name       = "set_link",
1413         .args_type  = "name:s,up:b",
1414         .params     = "name on|off",
1415         .help       = "change the link status of a network adapter",
1416         .cmd        = hmp_set_link,
1417         .command_completion = set_link_completion,
1418     },
1419
1420 SRST
1421 ``set_link`` *name* ``[on|off]``
1422   Switch link *name* on (i.e. up) or off (i.e. down).
1423 ERST
1424
1425     {
1426         .name       = "watchdog_action",
1427         .args_type  = "action:s",
1428         .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1429         .help       = "change watchdog action",
1430         .cmd        = hmp_watchdog_action,
1431         .command_completion = watchdog_action_completion,
1432     },
1433
1434 SRST
1435 ``watchdog_action``
1436   Change watchdog action.
1437 ERST
1438
1439     {
1440         .name       = "acl_show",
1441         .args_type  = "aclname:s",
1442         .params     = "aclname",
1443         .help       = "list rules in the access control list",
1444         .cmd        = hmp_acl_show,
1445     },
1446
1447 SRST
1448 ``acl_show`` *aclname*
1449   List all the matching rules in the access control list, and the default
1450   policy. There are currently two named access control lists,
1451   *vnc.x509dname* and *vnc.username* matching on the x509 client
1452   certificate distinguished name, and SASL username respectively.
1453 ERST
1454
1455     {
1456         .name       = "acl_policy",
1457         .args_type  = "aclname:s,policy:s",
1458         .params     = "aclname allow|deny",
1459         .help       = "set default access control list policy",
1460         .cmd        = hmp_acl_policy,
1461     },
1462
1463 SRST
1464 ``acl_policy`` *aclname* ``allow|deny``
1465   Set the default access control list policy, used in the event that
1466   none of the explicit rules match. The default policy at startup is
1467   always ``deny``.
1468 ERST
1469
1470     {
1471         .name       = "acl_add",
1472         .args_type  = "aclname:s,match:s,policy:s,index:i?",
1473         .params     = "aclname match allow|deny [index]",
1474         .help       = "add a match rule to the access control list",
1475         .cmd        = hmp_acl_add,
1476     },
1477
1478 SRST
1479 ``acl_add`` *aclname* *match* ``allow|deny`` [*index*]
1480   Add a match rule to the access control list, allowing or denying access.
1481   The match will normally be an exact username or x509 distinguished name,
1482   but can optionally include wildcard globs. eg ``*@EXAMPLE.COM`` to
1483   allow all users in the ``EXAMPLE.COM`` kerberos realm. The match will
1484   normally be appended to the end of the ACL, but can be inserted
1485   earlier in the list if the optional *index* parameter is supplied.
1486 ERST
1487
1488     {
1489         .name       = "acl_remove",
1490         .args_type  = "aclname:s,match:s",
1491         .params     = "aclname match",
1492         .help       = "remove a match rule from the access control list",
1493         .cmd        = hmp_acl_remove,
1494     },
1495
1496 SRST
1497 ``acl_remove`` *aclname* *match*
1498   Remove the specified match rule from the access control list.
1499 ERST
1500
1501     {
1502         .name       = "acl_reset",
1503         .args_type  = "aclname:s",
1504         .params     = "aclname",
1505         .help       = "reset the access control list",
1506         .cmd        = hmp_acl_reset,
1507     },
1508
1509 SRST
1510 ``acl_reset`` *aclname*
1511   Remove all matches from the access control list, and set the default
1512   policy back to ``deny``.
1513 ERST
1514
1515     {
1516         .name       = "nbd_server_start",
1517         .args_type  = "all:-a,writable:-w,uri:s",
1518         .params     = "nbd_server_start [-a] [-w] host:port",
1519         .help       = "serve block devices on the given host and port",
1520         .cmd        = hmp_nbd_server_start,
1521     },
1522 SRST
1523 ``nbd_server_start`` *host*:*port*
1524   Start an NBD server on the given host and/or port.  If the ``-a``
1525   option is included, all of the virtual machine's block devices that
1526   have an inserted media on them are automatically exported; in this case,
1527   the ``-w`` option makes the devices writable too.
1528 ERST
1529
1530     {
1531         .name       = "nbd_server_add",
1532         .args_type  = "writable:-w,device:B,name:s?",
1533         .params     = "nbd_server_add [-w] device [name]",
1534         .help       = "export a block device via NBD",
1535         .cmd        = hmp_nbd_server_add,
1536     },
1537 SRST
1538 ``nbd_server_add`` *device* [ *name* ]
1539   Export a block device through QEMU's NBD server, which must be started
1540   beforehand with ``nbd_server_start``.  The ``-w`` option makes the
1541   exported device writable too.  The export name is controlled by *name*,
1542   defaulting to *device*.
1543 ERST
1544
1545     {
1546         .name       = "nbd_server_remove",
1547         .args_type  = "force:-f,name:s",
1548         .params     = "nbd_server_remove [-f] name",
1549         .help       = "remove an export previously exposed via NBD",
1550         .cmd        = hmp_nbd_server_remove,
1551     },
1552 SRST
1553 ``nbd_server_remove [-f]`` *name*
1554   Stop exporting a block device through QEMU's NBD server, which was
1555   previously started with ``nbd_server_add``.  The ``-f``
1556   option forces the server to drop the export immediately even if
1557   clients are connected; otherwise the command fails unless there are no
1558   clients.
1559 ERST
1560
1561     {
1562         .name       = "nbd_server_stop",
1563         .args_type  = "",
1564         .params     = "nbd_server_stop",
1565         .help       = "stop serving block devices using the NBD protocol",
1566         .cmd        = hmp_nbd_server_stop,
1567     },
1568 SRST
1569 ``nbd_server_stop``
1570   Stop the QEMU embedded NBD server.
1571 ERST
1572
1573
1574 #if defined(TARGET_I386)
1575
1576     {
1577         .name       = "mce",
1578         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1579         .params     = "[-b] cpu bank status mcgstatus addr misc",
1580         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1581         .cmd        = hmp_mce,
1582     },
1583
1584 #endif
1585 SRST
1586 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1587   Inject an MCE on the given CPU (x86 only).
1588 ERST
1589
1590     {
1591         .name       = "getfd",
1592         .args_type  = "fdname:s",
1593         .params     = "getfd name",
1594         .help       = "receive a file descriptor via SCM rights and assign it a name",
1595         .cmd        = hmp_getfd,
1596     },
1597
1598 SRST
1599 ``getfd`` *fdname*
1600   If a file descriptor is passed alongside this command using the SCM_RIGHTS
1601   mechanism on unix sockets, it is stored using the name *fdname* for
1602   later use by other monitor commands.
1603 ERST
1604
1605     {
1606         .name       = "closefd",
1607         .args_type  = "fdname:s",
1608         .params     = "closefd name",
1609         .help       = "close a file descriptor previously passed via SCM rights",
1610         .cmd        = hmp_closefd,
1611     },
1612
1613 SRST
1614 ``closefd`` *fdname*
1615   Close the file descriptor previously assigned to *fdname* using the
1616   ``getfd`` command. This is only needed if the file descriptor was never
1617   used by another monitor command.
1618 ERST
1619
1620     {
1621         .name       = "block_passwd",
1622         .args_type  = "device:B,password:s",
1623         .params     = "block_passwd device password",
1624         .help       = "set the password of encrypted block devices",
1625         .cmd        = hmp_block_passwd,
1626     },
1627
1628 SRST
1629 ``block_passwd`` *device* *password*
1630   Set the encrypted device *device* password to *password*
1631
1632   This command is now obsolete and will always return an error since 2.10
1633 ERST
1634
1635     {
1636         .name       = "block_set_io_throttle",
1637         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1638         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1639         .help       = "change I/O throttle limits for a block drive",
1640         .cmd        = hmp_block_set_io_throttle,
1641     },
1642
1643 SRST
1644 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1645   Change I/O throttle limits for a block drive to
1646   *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1647   *device* can be a block device name, a qdev ID or a QOM path.
1648 ERST
1649
1650     {
1651         .name       = "set_password",
1652         .args_type  = "protocol:s,password:s,connected:s?",
1653         .params     = "protocol password action-if-connected",
1654         .help       = "set spice/vnc password",
1655         .cmd        = hmp_set_password,
1656     },
1657
1658 SRST
1659 ``set_password [ vnc | spice ] password [ action-if-connected ]``
1660   Change spice/vnc password.  Use zero to make the password stay valid
1661   forever.  *action-if-connected* specifies what should happen in
1662   case a connection is established: *fail* makes the password change
1663   fail.  *disconnect* changes the password and disconnects the
1664   client.  *keep* changes the password and keeps the connection up.
1665   *keep* is the default.
1666 ERST
1667
1668     {
1669         .name       = "expire_password",
1670         .args_type  = "protocol:s,time:s",
1671         .params     = "protocol time",
1672         .help       = "set spice/vnc password expire-time",
1673         .cmd        = hmp_expire_password,
1674     },
1675
1676 SRST
1677 ``expire_password [ vnc | spice ]`` *expire-time*
1678   Specify when a password for spice/vnc becomes
1679   invalid. *expire-time* accepts:
1680
1681   ``now``
1682     Invalidate password instantly.
1683   ``never``
1684     Password stays valid forever.
1685   ``+``\ *nsec*
1686     Password stays valid for *nsec* seconds starting now.
1687   *nsec*
1688     Password is invalidated at the given time.  *nsec* are the seconds
1689     passed since 1970, i.e. unix epoch.
1690
1691 ERST
1692
1693     {
1694         .name       = "chardev-add",
1695         .args_type  = "args:s",
1696         .params     = "args",
1697         .help       = "add chardev",
1698         .cmd        = hmp_chardev_add,
1699         .command_completion = chardev_add_completion,
1700     },
1701
1702 SRST
1703 ``chardev-add`` *args*
1704   chardev-add accepts the same parameters as the -chardev command line switch.
1705 ERST
1706
1707     {
1708         .name       = "chardev-change",
1709         .args_type  = "id:s,args:s",
1710         .params     = "id args",
1711         .help       = "change chardev",
1712         .cmd        = hmp_chardev_change,
1713     },
1714
1715 SRST
1716 ``chardev-change`` *args*
1717   chardev-change accepts existing chardev *id* and then the same arguments
1718   as the -chardev command line switch (except for "id").
1719 ERST
1720
1721     {
1722         .name       = "chardev-remove",
1723         .args_type  = "id:s",
1724         .params     = "id",
1725         .help       = "remove chardev",
1726         .cmd        = hmp_chardev_remove,
1727         .command_completion = chardev_remove_completion,
1728     },
1729
1730 SRST
1731 ``chardev-remove`` *id*
1732   Removes the chardev *id*.
1733 ERST
1734
1735     {
1736         .name       = "chardev-send-break",
1737         .args_type  = "id:s",
1738         .params     = "id",
1739         .help       = "send a break on chardev",
1740         .cmd        = hmp_chardev_send_break,
1741         .command_completion = chardev_remove_completion,
1742     },
1743
1744 SRST
1745 ``chardev-send-break`` *id*
1746   Send a break on the chardev *id*.
1747 ERST
1748
1749     {
1750         .name       = "qemu-io",
1751         .args_type  = "qdev:-d,device:B,command:s",
1752         .params     = "[-d] [device] \"[command]\"",
1753         .help       = "run a qemu-io command on a block device\n\t\t\t"
1754                       "-d: [device] is a device ID rather than a "
1755                       "drive ID or node name",
1756         .cmd        = hmp_qemu_io,
1757     },
1758
1759 SRST
1760 ``qemu-io`` *device* *command*
1761   Executes a qemu-io command on the given block device.
1762 ERST
1763
1764     {
1765         .name       = "cpu-add",
1766         .args_type  = "id:i",
1767         .params     = "id",
1768         .help       = "add cpu (deprecated, use device_add instead)",
1769         .cmd        = hmp_cpu_add,
1770     },
1771
1772 SRST
1773 ``cpu-add`` *id*
1774   Add CPU with id *id*.  This command is deprecated, please
1775   +use ``device_add`` instead. For details, refer to
1776   'docs/cpu-hotplug.rst'.
1777 ERST
1778
1779     {
1780         .name       = "qom-list",
1781         .args_type  = "path:s?",
1782         .params     = "path",
1783         .help       = "list QOM properties",
1784         .cmd        = hmp_qom_list,
1785         .flags      = "p",
1786     },
1787
1788 SRST
1789 ``qom-list`` [*path*]
1790   Print QOM properties of object at location *path*
1791 ERST
1792
1793     {
1794         .name       = "qom-get",
1795         .args_type  = "path:s,property:s",
1796         .params     = "path property",
1797         .help       = "print QOM property",
1798         .cmd        = hmp_qom_get,
1799         .flags      = "p",
1800     },
1801
1802 SRST
1803 ``qom-get`` *path* *property*
1804   Print QOM property *property* of object at location *path*
1805 ERST
1806
1807     {
1808         .name       = "qom-set",
1809         .args_type  = "json:-j,path:s,property:s,value:S",
1810         .params     = "[-j] path property value",
1811         .help       = "set QOM property.\n\t\t\t"
1812                       "-j: the value is specified in json format.",
1813         .cmd        = hmp_qom_set,
1814         .flags      = "p",
1815     },
1816
1817 SRST
1818 ``qom-set`` *path* *property* *value*
1819   Set QOM property *property* of object at location *path* to value *value*
1820 ERST
1821
1822     {
1823         .name       = "info",
1824         .args_type  = "item:s?",
1825         .params     = "[subcommand]",
1826         .help       = "show various information about the system state",
1827         .cmd        = hmp_info_help,
1828         .sub_table  = hmp_info_cmds,
1829         .flags      = "p",
1830     },
1831