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        = hmp_help,
  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       = "quit|q",
  44         .args_type  = "",
  45         .params     = "",
  46         .help       = "quit the emulator",
  47         .cmd        = hmp_quit,
  48         .flags      = "p",
  49     },
  50
  51 SRST
  52 ``quit`` or ``q``
  53   Quit the emulator.
  54 ERST
  55
  56     {
  57         .name       = "exit_preconfig",
  58         .args_type  = "",
  59         .params     = "",
  60         .help       = "exit the preconfig state",
  61         .cmd        = hmp_exit_preconfig,
  62         .flags      = "p",
  63     },
  64
  65 SRST
  66 ``exit_preconfig``
  67   This command makes QEMU exit the preconfig state and proceed with
  68   VM initialization using configuration data provided on the command line
  69   and via the QMP monitor during the preconfig state. The command is only
  70   available during the preconfig state (i.e. when the --preconfig command
  71   line option was in use).
  72 ERST
  73
  74     {
  75         .name       = "block_resize",
  76         .args_type  = "device:B,size:o",
  77         .params     = "device size",
  78         .help       = "resize a block image",
  79         .cmd        = hmp_block_resize,
  80         .coroutine  = true,
  81         .flags      = "p",
  82     },
  83
  84 SRST
  85 ``block_resize``
  86   Resize a block image while a guest is running.  Usually requires guest
  87   action to see the updated size.  Resize to a lower size is supported,
  88   but should be used with extreme caution.  Note that this command only
  89   resizes image files, it can not resize block devices like LVM volumes.
  90 ERST
  91
  92     {
  93         .name       = "block_stream",
  94         .args_type  = "device:B,speed:o?,base:s?",
  95         .params     = "device [speed [base]]",
  96         .help       = "copy data from a backing file into a block device",
  97         .cmd        = hmp_block_stream,
  98         .flags      = "p",
  99     },
 100
 101 SRST
 102 ``block_stream``
 103   Copy data from a backing file into a block device.
 104 ERST
 105
 106     {
 107         .name       = "block_job_set_speed",
 108         .args_type  = "device:B,speed:o",
 109         .params     = "device speed",
 110         .help       = "set maximum speed for a background block operation",
 111         .cmd        = hmp_block_job_set_speed,
 112         .flags      = "p",
 113     },
 114
 115 SRST
 116 ``block_job_set_speed``
 117   Set maximum speed for a background block operation.
 118 ERST
 119
 120     {
 121         .name       = "block_job_cancel",
 122         .args_type  = "force:-f,device:B",
 123         .params     = "[-f] device",
 124         .help       = "stop an active background block operation (use -f"
 125                       "\n\t\t\t if you want to abort the operation immediately"
 126                       "\n\t\t\t instead of keep running until data is in sync)",
 127         .cmd        = hmp_block_job_cancel,
 128         .flags      = "p",
 129     },
 130
 131 SRST
 132 ``block_job_cancel``
 133   Stop an active background block operation (streaming, mirroring).
 134 ERST
 135
 136     {
 137         .name       = "block_job_complete",
 138         .args_type  = "device:B",
 139         .params     = "device",
 140         .help       = "stop an active background block operation",
 141         .cmd        = hmp_block_job_complete,
 142         .flags      = "p",
 143     },
 144
 145 SRST
 146 ``block_job_complete``
 147   Manually trigger completion of an active background block operation.
 148   For mirroring, this will switch the device to the destination path.
 149 ERST
 150
 151     {
 152         .name       = "block_job_pause",
 153         .args_type  = "device:B",
 154         .params     = "device",
 155         .help       = "pause an active background block operation",
 156         .cmd        = hmp_block_job_pause,
 157         .flags      = "p",
 158     },
 159
 160 SRST
 161 ``block_job_pause``
 162   Pause an active block streaming operation.
 163 ERST
 164
 165     {
 166         .name       = "block_job_resume",
 167         .args_type  = "device:B",
 168         .params     = "device",
 169         .help       = "resume a paused background block operation",
 170         .cmd        = hmp_block_job_resume,
 171         .flags      = "p",
 172     },
 173
 174 SRST
 175 ``block_job_resume``
 176   Resume a paused block streaming operation.
 177 ERST
 178
 179     {
 180         .name       = "eject",
 181         .args_type  = "force:-f,device:B",
 182         .params     = "[-f] device",
 183         .help       = "eject a removable medium (use -f to force it)",
 184         .cmd        = hmp_eject,
 185     },
 186
 187 SRST
 188 ``eject [-f]`` *device*
 189   Eject a removable medium (use -f to force it).
 190 ERST
 191
 192     {
 193         .name       = "drive_del",
 194         .args_type  = "id:B",
 195         .params     = "device",
 196         .help       = "remove host block device",
 197         .cmd        = hmp_drive_del,
 198     },
 199
 200 SRST
 201 ``drive_del`` *device*
 202   Remove host block device.  The result is that guest generated IO is no longer
 203   submitted against the host device underlying the disk.  Once a drive has
 204   been deleted, the QEMU Block layer returns -EIO which results in IO
 205   errors in the guest for applications that are reading/writing to the device.
 206   These errors are always reported to the guest, regardless of the drive's error
 207   actions (drive options rerror, werror).
 208 ERST
 209
 210     {
 211         .name       = "change",
 212         .args_type  = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
 213         .params     = "device [-f] filename [format [read-only-mode]]",
 214         .help       = "change a removable medium, optional format, use -f to force the operation",
 215         .cmd        = hmp_change,
 216     },
 217
 218 SRST
 219 ``change`` *device* *setting*
 220   Change the configuration of a device.
 221
 222   ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
 223     Change the medium for a removable disk device to point to *filename*. eg::
 224
 225       (qemu) change ide1-cd0 /path/to/some.iso
 226
 227     ``-f``
 228       forces the operation even if the guest has locked the tray.
 229
 230     *format* is optional.
 231
 232     *read-only-mode* may be used to change the read-only status of the device.
 233     It accepts the following values:
 234
 235     retain
 236       Retains the current status; this is the default.
 237
 238     read-only
 239       Makes the device read-only.
 240
 241     read-write
 242       Makes the device writable.
 243
 244   ``change vnc password`` [*password*]
 245
 246     Change the password associated with the VNC server. If the new password
 247     is not supplied, the monitor will prompt for it to be entered. VNC
 248     passwords are only significant up to 8 letters. eg::
 249
 250       (qemu) change vnc password
 251       Password: ********
 252
 253 ERST
 254
 255 #ifdef CONFIG_PIXMAN
 256     {
 257         .name       = "screendump",
 258         .args_type  = "filename:F,format:-fs,device:s?,head:i?",
 259         .params     = "filename [-f format] [device [head]]",
 260         .help       = "save screen from head 'head' of display device 'device'"
 261                       "in specified format 'format' as image 'filename'."
 262                       "Currently only 'png' and 'ppm' formats are supported.",
 263          .cmd        = hmp_screendump,
 264         .coroutine  = true,
 265     },
 266
 267 SRST
 268 ``screendump`` *filename*
 269   Save screen into PPM image *filename*.
 270 ERST
 271 #endif
 272
 273     {
 274         .name       = "logfile",
 275         .args_type  = "filename:F",
 276         .params     = "filename",
 277         .help       = "output logs to 'filename'",
 278         .cmd        = hmp_logfile,
 279     },
 280
 281 SRST
 282 ``logfile`` *filename*
 283   Output logs to *filename*.
 284 ERST
 285
 286     {
 287         .name       = "trace-event",
 288         .args_type  = "name:s,option:b,vcpu:i?",
 289         .params     = "name on|off [vcpu]",
 290         .help       = "changes status of a specific trace event "
 291                       "(vcpu: vCPU to set, default is all)",
 292         .cmd = hmp_trace_event,
 293         .command_completion = trace_event_completion,
 294     },
 295
 296 SRST
 297 ``trace-event``
 298   changes status of a trace event
 299 ERST
 300
 301 #if defined(CONFIG_TRACE_SIMPLE)
 302     {
 303         .name       = "trace-file",
 304         .args_type  = "op:s?,arg:F?",
 305         .params     = "on|off|flush|set [arg]",
 306         .help       = "open, close, or flush trace file, or set a new file name",
 307         .cmd        = hmp_trace_file,
 308     },
 309
 310 SRST
 311 ``trace-file on|off|flush``
 312   Open, close, or flush the trace file.  If no argument is given, the
 313   status of the trace file is displayed.
 314 ERST
 315 #endif
 316
 317     {
 318         .name       = "log",
 319         .args_type  = "items:s",
 320         .params     = "item1[,...]",
 321         .help       = "activate logging of the specified items",
 322         .cmd        = hmp_log,
 323     },
 324
 325 SRST
 326 ``log`` *item1*\ [,...]
 327   Activate logging of the specified items.
 328 ERST
 329
 330     {
 331         .name       = "savevm",
 332         .args_type  = "name:s?",
 333         .params     = "tag",
 334         .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
 335         .cmd        = hmp_savevm,
 336     },
 337
 338 SRST
 339 ``savevm`` *tag*
 340   Create a snapshot of the whole virtual machine. If *tag* is
 341   provided, it is used as human readable identifier. If there is already
 342   a snapshot with the same tag, it is replaced. More info at
 343   :ref:`vm_005fsnapshots`.
 344
 345   Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
 346   only *tag* as parameter.
 347 ERST
 348
 349     {
 350         .name       = "loadvm",
 351         .args_type  = "name:s",
 352         .params     = "tag",
 353         .help       = "restore a VM snapshot from its tag",
 354         .cmd        = hmp_loadvm,
 355         .command_completion = loadvm_completion,
 356     },
 357
 358 SRST
 359 ``loadvm`` *tag*
 360   Set the whole virtual machine to the snapshot identified by the tag
 361   *tag*.
 362
 363   Since 4.0, loadvm stopped accepting snapshot id as parameter.
 364 ERST
 365
 366     {
 367         .name       = "delvm",
 368         .args_type  = "name:s",
 369         .params     = "tag",
 370         .help       = "delete a VM snapshot from its tag",
 371         .cmd        = hmp_delvm,
 372         .command_completion = delvm_completion,
 373     },
 374
 375 SRST
 376 ``delvm`` *tag*
 377   Delete the snapshot identified by *tag*.
 378
 379   Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
 380   only *tag* as parameter.
 381 ERST
 382
 383     {
 384         .name       = "one-insn-per-tb",
 385         .args_type  = "option:s?",
 386         .params     = "[on|off]",
 387         .help       = "run emulation with one guest instruction per translation block",
 388         .cmd        = hmp_one_insn_per_tb,
 389     },
 390
 391 SRST
 392 ``one-insn-per-tb [off]``
 393   Run the emulation with one guest instruction per translation block.
 394   This slows down emulation a lot, but can be useful in some situations,
 395   such as when trying to analyse the logs produced by the ``-d`` option.
 396   This only has an effect when using TCG, not with KVM or other accelerators.
 397
 398   If called with option off, the emulation returns to normal mode.
 399 ERST
 400
 401     {
 402         .name       = "singlestep",
 403         .args_type  = "option:s?",
 404         .params     = "[on|off]",
 405         .help       = "deprecated synonym for one-insn-per-tb",
 406         .cmd        = hmp_one_insn_per_tb,
 407     },
 408
 409 SRST
 410 ``singlestep [off]``
 411   This is a deprecated synonym for the one-insn-per-tb command.
 412 ERST
 413
 414     {
 415         .name       = "stop|s",
 416         .args_type  = "",
 417         .params     = "",
 418         .help       = "stop emulation",
 419         .cmd        = hmp_stop,
 420     },
 421
 422 SRST
 423 ``stop`` or ``s``
 424   Stop emulation.
 425 ERST
 426
 427     {
 428         .name       = "cont|c",
 429         .args_type  = "",
 430         .params     = "",
 431         .help       = "resume emulation",
 432         .cmd        = hmp_cont,
 433     },
 434
 435 SRST
 436 ``cont`` or ``c``
 437   Resume emulation.
 438 ERST
 439
 440     {
 441         .name       = "system_wakeup",
 442         .args_type  = "",
 443         .params     = "",
 444         .help       = "wakeup guest from suspend",
 445         .cmd        = hmp_system_wakeup,
 446     },
 447
 448 SRST
 449 ``system_wakeup``
 450   Wakeup guest from suspend.
 451 ERST
 452
 453     {
 454         .name       = "gdbserver",
 455         .args_type  = "device:s?",
 456         .params     = "[device]",
 457         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 458         .cmd        = hmp_gdbserver,
 459     },
 460
 461 SRST
 462 ``gdbserver`` [*port*]
 463   Start gdbserver session (default *port*\=1234)
 464 ERST
 465
 466     {
 467         .name       = "x",
 468         .args_type  = "fmt:/,addr:l",
 469         .params     = "/fmt addr",
 470         .help       = "virtual memory dump starting at 'addr'",
 471         .cmd        = hmp_memory_dump,
 472     },
 473
 474 SRST
 475 ``x/``\ *fmt* *addr*
 476   Virtual memory dump starting at *addr*.
 477 ERST
 478
 479     {
 480         .name       = "xp",
 481         .args_type  = "fmt:/,addr:l",
 482         .params     = "/fmt addr",
 483         .help       = "physical memory dump starting at 'addr'",
 484         .cmd        = hmp_physical_memory_dump,
 485     },
 486
 487 SRST
 488 ``xp /``\ *fmt* *addr*
 489   Physical memory dump starting at *addr*.
 490
 491   *fmt* is a format which tells the command how to format the
 492   data. Its syntax is: ``/{count}{format}{size}``
 493
 494   *count*
 495     is the number of items to be dumped.
 496   *format*
 497     can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 498     c (char) or i (asm instruction).
 499   *size*
 500     can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 501     ``h`` or ``w`` can be specified with the ``i`` format to
 502     respectively select 16 or 32 bit code instruction size.
 503
 504   Examples:
 505
 506   Dump 10 instructions at the current instruction pointer::
 507
 508     (qemu) x/10i $eip
 509     0x90107063:  ret
 510     0x90107064:  sti
 511     0x90107065:  lea    0x0(%esi,1),%esi
 512     0x90107069:  lea    0x0(%edi,1),%edi
 513     0x90107070:  ret
 514     0x90107071:  jmp    0x90107080
 515     0x90107073:  nop
 516     0x90107074:  nop
 517     0x90107075:  nop
 518     0x90107076:  nop
 519
 520   Dump 80 16 bit values at the start of the video memory::
 521
 522     (qemu) xp/80hx 0xb8000
 523     0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 524     0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 525     0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 526     0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 527     0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 528     0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 529     0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 530     0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 531     0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 532     0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 533
 534 ERST
 535
 536     {
 537         .name       = "gpa2hva",
 538         .args_type  = "addr:l",
 539         .params     = "addr",
 540         .help       = "print the host virtual address corresponding to a guest physical address",
 541         .cmd        = hmp_gpa2hva,
 542     },
 543
 544 SRST
 545 ``gpa2hva`` *addr*
 546   Print the host virtual address at which the guest's physical address *addr*
 547   is mapped.
 548 ERST
 549
 550 #ifdef CONFIG_LINUX
 551     {
 552         .name       = "gpa2hpa",
 553         .args_type  = "addr:l",
 554         .params     = "addr",
 555         .help       = "print the host physical address corresponding to a guest physical address",
 556         .cmd        = hmp_gpa2hpa,
 557     },
 558 #endif
 559
 560 SRST
 561 ``gpa2hpa`` *addr*
 562   Print the host physical address at which the guest's physical address *addr*
 563   is mapped.
 564 ERST
 565
 566     {
 567         .name       = "gva2gpa",
 568         .args_type  = "addr:l",
 569         .params     = "addr",
 570         .help       = "print the guest physical address corresponding to a guest virtual address",
 571         .cmd        = hmp_gva2gpa,
 572     },
 573
 574 SRST
 575 ``gva2gpa`` *addr*
 576   Print the guest physical address at which the guest's virtual address *addr*
 577   is mapped based on the mapping for the current CPU.
 578 ERST
 579
 580     {
 581         .name       = "print|p",
 582         .args_type  = "fmt:/,val:l",
 583         .params     = "/fmt expr",
 584         .help       = "print expression value (use $reg for CPU register access)",
 585         .cmd        = hmp_print,
 586     },
 587
 588 SRST
 589 ``print`` or ``p/``\ *fmt* *expr*
 590   Print expression value. Only the *format* part of *fmt* is
 591   used.
 592 ERST
 593
 594     {
 595         .name       = "i",
 596         .args_type  = "fmt:/,addr:i,index:i.",
 597         .params     = "/fmt addr",
 598         .help       = "I/O port read",
 599         .cmd        = hmp_ioport_read,
 600     },
 601
 602 SRST
 603 ``i/``\ *fmt* *addr* [.\ *index*\ ]
 604   Read I/O port.
 605 ERST
 606
 607     {
 608         .name       = "o",
 609         .args_type  = "fmt:/,addr:i,val:i",
 610         .params     = "/fmt addr value",
 611         .help       = "I/O port write",
 612         .cmd        = hmp_ioport_write,
 613     },
 614
 615 SRST
 616 ``o/``\ *fmt* *addr* *val*
 617   Write to I/O port.
 618 ERST
 619
 620     {
 621         .name       = "sendkey",
 622         .args_type  = "keys:s,hold-time:i?",
 623         .params     = "keys [hold_ms]",
 624         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 625         .cmd        = hmp_sendkey,
 626         .command_completion = sendkey_completion,
 627     },
 628
 629 SRST
 630 ``sendkey`` *keys*
 631   Send *keys* to the guest. *keys* could be the name of the
 632   key or the raw value in hexadecimal format. Use ``-`` to press
 633   several keys simultaneously. Example::
 634
 635     sendkey ctrl-alt-f1
 636
 637   This command is useful to send keys that your graphical user interface
 638   intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
 639 ERST
 640     {
 641         .name       = "sync-profile",
 642         .args_type  = "op:s?",
 643         .params     = "[on|off|reset]",
 644         .help       = "enable, disable or reset synchronization profiling. "
 645                       "With no arguments, prints whether profiling is on or off.",
 646         .cmd        = hmp_sync_profile,
 647     },
 648
 649 SRST
 650 ``sync-profile [on|off|reset]``
 651   Enable, disable or reset synchronization profiling. With no arguments, prints
 652   whether profiling is on or off.
 653 ERST
 654
 655     {
 656         .name       = "system_reset",
 657         .args_type  = "",
 658         .params     = "",
 659         .help       = "reset the system",
 660         .cmd        = hmp_system_reset,
 661     },
 662
 663 SRST
 664 ``system_reset``
 665   Reset the system.
 666 ERST
 667
 668     {
 669         .name       = "system_powerdown",
 670         .args_type  = "",
 671         .params     = "",
 672         .help       = "send system power down event",
 673         .cmd        = hmp_system_powerdown,
 674     },
 675
 676 SRST
 677 ``system_powerdown``
 678   Power down the system (if supported).
 679 ERST
 680
 681     {
 682         .name       = "sum",
 683         .args_type  = "start:i,size:i",
 684         .params     = "addr size",
 685         .help       = "compute the checksum of a memory region",
 686         .cmd        = hmp_sum,
 687     },
 688
 689 SRST
 690 ``sum`` *addr* *size*
 691   Compute the checksum of a memory region.
 692 ERST
 693
 694     {
 695         .name       = "device_add",
 696         .args_type  = "device:O",
 697         .params     = "driver[,prop=value][,...]",
 698         .help       = "add device, like -device on the command line",
 699         .cmd        = hmp_device_add,
 700         .command_completion = device_add_completion,
 701     },
 702
 703 SRST
 704 ``device_add`` *config*
 705   Add device.
 706 ERST
 707
 708     {
 709         .name       = "device_del",
 710         .args_type  = "id:s",
 711         .params     = "device",
 712         .help       = "remove device",
 713         .cmd        = hmp_device_del,
 714         .command_completion = device_del_completion,
 715     },
 716
 717 SRST
 718 ``device_del`` *id*
 719   Remove device *id*. *id* may be a short ID
 720   or a QOM object path.
 721 ERST
 722
 723     {
 724         .name       = "cpu",
 725         .args_type  = "index:i",
 726         .params     = "index",
 727         .help       = "set the default CPU",
 728         .cmd        = hmp_cpu,
 729     },
 730
 731 SRST
 732 ``cpu`` *index*
 733   Set the default CPU.
 734 ERST
 735
 736     {
 737         .name       = "mouse_move",
 738         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 739         .params     = "dx dy [dz]",
 740         .help       = "send mouse move events",
 741         .cmd        = hmp_mouse_move,
 742     },
 743
 744 SRST
 745 ``mouse_move`` *dx* *dy* [*dz*]
 746   Move the active mouse to the specified coordinates *dx* *dy*
 747   with optional scroll axis *dz*.
 748 ERST
 749
 750     {
 751         .name       = "mouse_button",
 752         .args_type  = "button_state:i",
 753         .params     = "state",
 754         .help       = "change mouse button state (1=L, 2=M, 4=R)",
 755         .cmd        = hmp_mouse_button,
 756     },
 757
 758 SRST
 759 ``mouse_button`` *val*
 760   Change the active mouse button state *val* (1=L, 2=M, 4=R).
 761 ERST
 762
 763     {
 764         .name       = "mouse_set",
 765         .args_type  = "index:i",
 766         .params     = "index",
 767         .help       = "set which mouse device receives events",
 768         .cmd        = hmp_mouse_set,
 769     },
 770
 771 SRST
 772 ``mouse_set`` *index*
 773   Set which mouse device receives events at given *index*, index
 774   can be obtained with::
 775
 776     info mice
 777
 778 ERST
 779
 780     {
 781         .name       = "wavcapture",
 782         .args_type  = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
 783         .params     = "path audiodev [frequency [bits [channels]]]",
 784         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 785         .cmd        = hmp_wavcapture,
 786     },
 787 SRST
 788 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
 789   Capture audio into *filename* from *audiodev*, using sample rate
 790   *frequency* bits per sample *bits* and number of channels
 791   *channels*.
 792
 793   Defaults:
 794
 795   - Sample rate = 44100 Hz - CD quality
 796   - Bits = 16
 797   - Number of channels = 2 - Stereo
 798 ERST
 799
 800     {
 801         .name       = "stopcapture",
 802         .args_type  = "n:i",
 803         .params     = "capture index",
 804         .help       = "stop capture",
 805         .cmd        = hmp_stopcapture,
 806     },
 807 SRST
 808 ``stopcapture`` *index*
 809   Stop capture with a given *index*, index can be obtained with::
 810
 811     info capture
 812
 813 ERST
 814
 815     {
 816         .name       = "memsave",
 817         .args_type  = "val:l,size:i,filename:s",
 818         .params     = "addr size file",
 819         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 820         .cmd        = hmp_memsave,
 821     },
 822
 823 SRST
 824 ``memsave`` *addr* *size* *file*
 825   save to disk virtual memory dump starting at *addr* of size *size*.
 826 ERST
 827
 828     {
 829         .name       = "pmemsave",
 830         .args_type  = "val:l,size:i,filename:s",
 831         .params     = "addr size file",
 832         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 833         .cmd        = hmp_pmemsave,
 834     },
 835
 836 SRST
 837 ``pmemsave`` *addr* *size* *file*
 838   save to disk physical memory dump starting at *addr* of size *size*.
 839 ERST
 840
 841     {
 842         .name       = "boot_set",
 843         .args_type  = "bootdevice:s",
 844         .params     = "bootdevice",
 845         .help       = "define new values for the boot device list",
 846         .cmd        = hmp_boot_set,
 847     },
 848
 849 SRST
 850 ``boot_set`` *bootdevicelist*
 851   Define new values for the boot device list. Those values will override
 852   the values specified on the command line through the ``-boot`` option.
 853
 854   The values that can be specified here depend on the machine type, but are
 855   the same that can be specified in the ``-boot`` command line option.
 856 ERST
 857
 858     {
 859         .name       = "nmi",
 860         .args_type  = "",
 861         .params     = "",
 862         .help       = "inject an NMI",
 863         .cmd        = hmp_nmi,
 864     },
 865 SRST
 866 ``nmi`` *cpu*
 867   Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
 868 ERST
 869
 870     {
 871         .name       = "ringbuf_write",
 872         .args_type  = "device:s,data:s",
 873         .params     = "device data",
 874         .help       = "Write to a ring buffer character device",
 875         .cmd        = hmp_ringbuf_write,
 876         .command_completion = ringbuf_write_completion,
 877     },
 878
 879 SRST
 880 ``ringbuf_write`` *device* *data*
 881   Write *data* to ring buffer character device *device*.
 882   *data* must be a UTF-8 string.
 883 ERST
 884
 885     {
 886         .name       = "ringbuf_read",
 887         .args_type  = "device:s,size:i",
 888         .params     = "device size",
 889         .help       = "Read from a ring buffer character device",
 890         .cmd        = hmp_ringbuf_read,
 891         .command_completion = ringbuf_write_completion,
 892     },
 893
 894 SRST
 895 ``ringbuf_read`` *device*
 896   Read and print up to *size* bytes from ring buffer character
 897   device *device*.
 898   Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
 899   character code in hexadecimal.  Character ``\`` is printed ``\\``.
 900   Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 901   NUL characters, after the ring buffer lost data, and when reading
 902   stops because the size limit is reached.
 903 ERST
 904
 905     {
 906         .name       = "announce_self",
 907         .args_type  = "interfaces:s?,id:s?",
 908         .params     = "[interfaces] [id]",
 909         .help       = "Trigger GARP/RARP announcements",
 910         .cmd        = hmp_announce_self,
 911     },
 912
 913 SRST
 914 ``announce_self``
 915   Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
 916   updating the network infrastructure after a reconfiguration or some forms
 917   of migration. The timings of the round are set by the migration announce
 918   parameters. An optional comma separated *interfaces* list restricts the
 919   announce to the named set of interfaces. An optional *id* can be used to
 920   start a separate announce timer and to change the parameters of it later.
 921 ERST
 922
 923     {
 924         .name       = "migrate",
 925         .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
 926         .params     = "[-d] [-b] [-i] [-r] uri",
 927         .help       = "migrate to URI (using -d to not wait for completion)"
 928                       "\n\t\t\t -b for migration without shared storage with"
 929                       " full copy of disk\n\t\t\t -i for migration without "
 930                       "shared storage with incremental copy of disk "
 931                       "(base image shared between src and destination)"
 932                       "\n\t\t\t -r to resume a paused migration",
 933         .cmd        = hmp_migrate,
 934     },
 935
 936
 937 SRST
 938 ``migrate [-d] [-b] [-i]`` *uri*
 939   Migrate to *uri* (using -d to not wait for completion).
 940
 941   ``-b``
 942     for migration with full copy of disk
 943   ``-i``
 944     for migration with incremental copy of disk (base image is shared)
 945 ERST
 946
 947     {
 948         .name       = "migrate_cancel",
 949         .args_type  = "",
 950         .params     = "",
 951         .help       = "cancel the current VM migration",
 952         .cmd        = hmp_migrate_cancel,
 953     },
 954
 955 SRST
 956 ``migrate_cancel``
 957   Cancel the current VM migration.
 958 ERST
 959
 960     {
 961         .name       = "migrate_continue",
 962         .args_type  = "state:s",
 963         .params     = "state",
 964         .help       = "Continue migration from the given paused state",
 965         .cmd        = hmp_migrate_continue,
 966     },
 967 SRST
 968 ``migrate_continue`` *state*
 969   Continue migration from the paused state *state*
 970 ERST
 971
 972     {
 973         .name       = "migrate_incoming",
 974         .args_type  = "uri:s",
 975         .params     = "uri",
 976         .help       = "Continue an incoming migration from an -incoming defer",
 977         .cmd        = hmp_migrate_incoming,
 978     },
 979
 980 SRST
 981 ``migrate_incoming`` *uri*
 982   Continue an incoming migration using the *uri* (that has the same syntax
 983   as the ``-incoming`` option).
 984 ERST
 985
 986     {
 987         .name       = "migrate_recover",
 988         .args_type  = "uri:s",
 989         .params     = "uri",
 990         .help       = "Continue a paused incoming postcopy migration",
 991         .cmd        = hmp_migrate_recover,
 992     },
 993
 994 SRST
 995 ``migrate_recover`` *uri*
 996   Continue a paused incoming postcopy migration using the *uri*.
 997 ERST
 998
 999     {
1000         .name       = "migrate_pause",
1001         .args_type  = "",
1002         .params     = "",
1003         .help       = "Pause an ongoing migration (postcopy-only)",
1004         .cmd        = hmp_migrate_pause,
1005     },
1006
1007 SRST
1008 ``migrate_pause``
1009   Pause an ongoing migration.  Currently it only supports postcopy.
1010 ERST
1011
1012     {
1013         .name       = "migrate_set_capability",
1014         .args_type  = "capability:s,state:b",
1015         .params     = "capability state",
1016         .help       = "Enable/Disable the usage of a capability for migration",
1017         .cmd        = hmp_migrate_set_capability,
1018         .command_completion = migrate_set_capability_completion,
1019     },
1020
1021 SRST
1022 ``migrate_set_capability`` *capability* *state*
1023   Enable/Disable the usage of a capability *capability* for migration.
1024 ERST
1025
1026     {
1027         .name       = "migrate_set_parameter",
1028         .args_type  = "parameter:s,value:s",
1029         .params     = "parameter value",
1030         .help       = "Set the parameter for migration",
1031         .cmd        = hmp_migrate_set_parameter,
1032         .command_completion = migrate_set_parameter_completion,
1033     },
1034
1035 SRST
1036 ``migrate_set_parameter`` *parameter* *value*
1037   Set the parameter *parameter* for migration.
1038 ERST
1039
1040     {
1041         .name       = "migrate_start_postcopy",
1042         .args_type  = "",
1043         .params     = "",
1044         .help       = "Followup to a migration command to switch the migration"
1045                       " to postcopy mode. The postcopy-ram capability must "
1046                       "be set on both source and destination before the "
1047                       "original migration command .",
1048         .cmd        = hmp_migrate_start_postcopy,
1049     },
1050
1051 SRST
1052 ``migrate_start_postcopy``
1053   Switch in-progress migration to postcopy mode. Ignored after the end of
1054   migration (or once already in postcopy).
1055 ERST
1056
1057 #ifdef CONFIG_REPLICATION
1058     {
1059         .name       = "x_colo_lost_heartbeat",
1060         .args_type  = "",
1061         .params     = "",
1062         .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1063                       "a failover or takeover is needed.",
1064         .cmd = hmp_x_colo_lost_heartbeat,
1065     },
1066 #endif
1067
1068 SRST
1069 ``x_colo_lost_heartbeat``
1070   Tell COLO that heartbeat is lost, a failover or takeover is needed.
1071 ERST
1072
1073     {
1074         .name       = "client_migrate_info",
1075         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1076         .params     = "protocol hostname port tls-port cert-subject",
1077         .help       = "set migration information for remote display",
1078         .cmd        = hmp_client_migrate_info,
1079     },
1080
1081 SRST
1082 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1083   Set migration information for remote display.  This makes the server
1084   ask the client to automatically reconnect using the new parameters
1085   once migration finished successfully.  Only implemented for SPICE.
1086 ERST
1087
1088     {
1089         .name       = "dump-guest-memory",
1090         .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,raw:-R,filename:F,begin:l?,length:l?",
1091         .params     = "[-p] [-d] [-z|-l|-s|-w] [-R] filename [begin length]",
1092         .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1093                       "-p: do paging to get guest's memory mapping.\n\t\t\t"
1094                       "-d: return immediately (do not wait for completion).\n\t\t\t"
1095                       "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1096                       "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1097                       "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1098                       "-R: when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened\n\t\t\t"
1099                       "    format\n\t\t\t"
1100                       "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1101                       "    for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
1102                       "begin: the starting physical address.\n\t\t\t"
1103                       "length: the memory size, in bytes.",
1104         .cmd        = hmp_dump_guest_memory,
1105     },
1106
1107 SRST
1108 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1109   \
1110 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1111   Dump guest memory to *protocol*. The file can be processed with crash or
1112   gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1113
1114   ``-p``
1115     do paging to get guest's memory mapping.
1116   ``-z``
1117     dump in kdump-compressed format, with zlib compression.
1118   ``-l``
1119     dump in kdump-compressed format, with lzo compression.
1120   ``-s``
1121     dump in kdump-compressed format, with snappy compression.
1122   ``-R``
1123     when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened
1124     format
1125   ``-w``
1126     dump in Windows crashdump format (can be used instead of ELF-dump converting),
1127     for Windows x64 guests with vmcoreinfo driver only
1128   *filename*
1129     dump file name.
1130   *begin*
1131     the starting physical address. It's optional, and should be
1132     specified together with *length*.
1133   *length*
1134     the memory size, in bytes. It's optional, and should be specified
1135     together with *begin*.
1136
1137 ERST
1138
1139 #if defined(TARGET_S390X)
1140     {
1141         .name       = "dump-skeys",
1142         .args_type  = "filename:F",
1143         .params     = "",
1144         .help       = "Save guest storage keys into file 'filename'.\n",
1145         .cmd        = hmp_dump_skeys,
1146     },
1147 #endif
1148
1149 SRST
1150 ``dump-skeys`` *filename*
1151   Save guest storage keys to a file.
1152 ERST
1153
1154 #if defined(TARGET_S390X)
1155     {
1156         .name       = "migration_mode",
1157         .args_type  = "mode:i",
1158         .params     = "mode",
1159         .help       = "Enables or disables migration mode\n",
1160         .cmd        = hmp_migrationmode,
1161     },
1162 #endif
1163
1164 SRST
1165 ``migration_mode`` *mode*
1166   Enables or disables migration mode.
1167 ERST
1168
1169     {
1170         .name       = "snapshot_blkdev",
1171         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1172         .params     = "[-n] device [new-image-file] [format]",
1173         .help       = "initiates a live snapshot\n\t\t\t"
1174                       "of device. If a new image file is specified, the\n\t\t\t"
1175                       "new image file will become the new root image.\n\t\t\t"
1176                       "If format is specified, the snapshot file will\n\t\t\t"
1177                       "be created in that format.\n\t\t\t"
1178                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1179                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
1180                       "recreating it from scratch.",
1181         .cmd        = hmp_snapshot_blkdev,
1182     },
1183
1184 SRST
1185 ``snapshot_blkdev``
1186   Snapshot device, using snapshot file as target if provided
1187 ERST
1188
1189     {
1190         .name       = "snapshot_blkdev_internal",
1191         .args_type  = "device:B,name:s",
1192         .params     = "device name",
1193         .help       = "take an internal snapshot of device.\n\t\t\t"
1194                       "The format of the image used by device must\n\t\t\t"
1195                       "support it, such as qcow2.\n\t\t\t",
1196         .cmd        = hmp_snapshot_blkdev_internal,
1197     },
1198
1199 SRST
1200 ``snapshot_blkdev_internal``
1201   Take an internal snapshot on device if it support
1202 ERST
1203
1204     {
1205         .name       = "snapshot_delete_blkdev_internal",
1206         .args_type  = "device:B,name:s,id:s?",
1207         .params     = "device name [id]",
1208         .help       = "delete an internal snapshot of device.\n\t\t\t"
1209                       "If id is specified, qemu will try delete\n\t\t\t"
1210                       "the snapshot matching both id and name.\n\t\t\t"
1211                       "The format of the image used by device must\n\t\t\t"
1212                       "support it, such as qcow2.\n\t\t\t",
1213         .cmd        = hmp_snapshot_delete_blkdev_internal,
1214     },
1215
1216 SRST
1217 ``snapshot_delete_blkdev_internal``
1218   Delete an internal snapshot on device if it support
1219 ERST
1220
1221     {
1222         .name       = "drive_mirror",
1223         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1224         .params     = "[-n] [-f] device target [format]",
1225         .help       = "initiates live storage\n\t\t\t"
1226                       "migration for a device. The device's contents are\n\t\t\t"
1227                       "copied to the new image file, including data that\n\t\t\t"
1228                       "is written after the command is started.\n\t\t\t"
1229                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1230                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1231                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1232                       "so that the result does not need a backing file.\n\t\t\t",
1233         .cmd        = hmp_drive_mirror,
1234     },
1235 SRST
1236 ``drive_mirror``
1237   Start mirroring a block device's writes to a new destination,
1238   using the specified target.
1239 ERST
1240
1241     {
1242         .name       = "drive_backup",
1243         .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1244         .params     = "[-n] [-f] [-c] device target [format]",
1245         .help       = "initiates a point-in-time\n\t\t\t"
1246                       "copy for a device. The device's contents are\n\t\t\t"
1247                       "copied to the new image file, excluding data that\n\t\t\t"
1248                       "is written after the command is started.\n\t\t\t"
1249                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1250                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1251                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1252                       "so that the result does not need a backing file.\n\t\t\t"
1253                       "The -c flag requests QEMU to compress backup data\n\t\t\t"
1254                       "(if the target format supports it).\n\t\t\t",
1255         .cmd        = hmp_drive_backup,
1256     },
1257 SRST
1258 ``drive_backup``
1259   Start a point-in-time copy of a block device to a specified target.
1260 ERST
1261
1262     {
1263         .name       = "drive_add",
1264         .args_type  = "node:-n,pci_addr:s,opts:s",
1265         .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1266                       "[file=file][,if=type][,bus=n]\n"
1267                       "[,unit=m][,media=d][,index=i]\n"
1268                       "[,snapshot=on|off][,cache=on|off]\n"
1269                       "[,readonly=on|off][,copy-on-read=on|off]",
1270         .help       = "add drive to PCI storage controller",
1271         .cmd        = hmp_drive_add,
1272     },
1273
1274 SRST
1275 ``drive_add``
1276   Add drive to PCI storage controller.
1277 ERST
1278
1279     {
1280         .name       = "pcie_aer_inject_error",
1281         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1282                       "id:s,error_status:s,"
1283                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1284                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1285         .params     = "[-a] [-c] id "
1286                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1287         .help       = "inject pcie aer error\n\t\t\t"
1288                       " -a for advisory non fatal error\n\t\t\t"
1289                       " -c for correctable error\n\t\t\t"
1290                       "<id> = qdev device id\n\t\t\t"
1291                       "<error_status> = error string or 32bit\n\t\t\t"
1292                       "<tlp header> = 32bit x 4\n\t\t\t"
1293                       "<tlp header prefix> = 32bit x 4",
1294         .cmd        = hmp_pcie_aer_inject_error,
1295     },
1296
1297 SRST
1298 ``pcie_aer_inject_error``
1299   Inject PCIe AER error
1300 ERST
1301
1302     {
1303         .name       = "netdev_add",
1304         .args_type  = "netdev:O",
1305         .params     = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
1306 #ifdef CONFIG_AF_XDP
1307                       "|af-xdp"
1308 #endif
1309 #ifdef CONFIG_VMNET
1310                       "|vmnet-host|vmnet-shared|vmnet-bridged"
1311 #endif
1312                       "],id=str[,prop=value][,...]",
1313         .help       = "add host network device",
1314         .cmd        = hmp_netdev_add,
1315         .command_completion = netdev_add_completion,
1316         .flags      = "p",
1317     },
1318
1319 SRST
1320 ``netdev_add``
1321   Add host network device.
1322 ERST
1323
1324     {
1325         .name       = "netdev_del",
1326         .args_type  = "id:s",
1327         .params     = "id",
1328         .help       = "remove host network device",
1329         .cmd        = hmp_netdev_del,
1330         .command_completion = netdev_del_completion,
1331         .flags      = "p",
1332     },
1333
1334 SRST
1335 ``netdev_del``
1336   Remove host network device.
1337 ERST
1338
1339     {
1340         .name       = "object_add",
1341         .args_type  = "object:S",
1342         .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1343         .help       = "create QOM object",
1344         .cmd        = hmp_object_add,
1345         .command_completion = object_add_completion,
1346         .flags      = "p",
1347     },
1348
1349 SRST
1350 ``object_add``
1351   Create QOM object.
1352 ERST
1353
1354     {
1355         .name       = "object_del",
1356         .args_type  = "id:s",
1357         .params     = "id",
1358         .help       = "destroy QOM object",
1359         .cmd        = hmp_object_del,
1360         .command_completion = object_del_completion,
1361         .flags      = "p",
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       = "nbd_server_start",
1441         .args_type  = "all:-a,writable:-w,uri:s",
1442         .params     = "nbd_server_start [-a] [-w] host:port",
1443         .help       = "serve block devices on the given host and port",
1444         .cmd        = hmp_nbd_server_start,
1445         .flags      = "p",
1446     },
1447 SRST
1448 ``nbd_server_start`` *host*:*port*
1449   Start an NBD server on the given host and/or port.  If the ``-a``
1450   option is included, all of the virtual machine's block devices that
1451   have an inserted media on them are automatically exported; in this case,
1452   the ``-w`` option makes the devices writable too.
1453 ERST
1454
1455     {
1456         .name       = "nbd_server_add",
1457         .args_type  = "writable:-w,device:B,name:s?",
1458         .params     = "nbd_server_add [-w] device [name]",
1459         .help       = "export a block device via NBD",
1460         .cmd        = hmp_nbd_server_add,
1461         .flags      = "p",
1462     },
1463 SRST
1464 ``nbd_server_add`` *device* [ *name* ]
1465   Export a block device through QEMU's NBD server, which must be started
1466   beforehand with ``nbd_server_start``.  The ``-w`` option makes the
1467   exported device writable too.  The export name is controlled by *name*,
1468   defaulting to *device*.
1469 ERST
1470
1471     {
1472         .name       = "nbd_server_remove",
1473         .args_type  = "force:-f,name:s",
1474         .params     = "nbd_server_remove [-f] name",
1475         .help       = "remove an export previously exposed via NBD",
1476         .cmd        = hmp_nbd_server_remove,
1477         .flags      = "p",
1478     },
1479 SRST
1480 ``nbd_server_remove [-f]`` *name*
1481   Stop exporting a block device through QEMU's NBD server, which was
1482   previously started with ``nbd_server_add``.  The ``-f``
1483   option forces the server to drop the export immediately even if
1484   clients are connected; otherwise the command fails unless there are no
1485   clients.
1486 ERST
1487
1488     {
1489         .name       = "nbd_server_stop",
1490         .args_type  = "",
1491         .params     = "nbd_server_stop",
1492         .help       = "stop serving block devices using the NBD protocol",
1493         .cmd        = hmp_nbd_server_stop,
1494         .flags      = "p",
1495     },
1496 SRST
1497 ``nbd_server_stop``
1498   Stop the QEMU embedded NBD server.
1499 ERST
1500
1501
1502 #if defined(TARGET_I386)
1503
1504     {
1505         .name       = "mce",
1506         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1507         .params     = "[-b] cpu bank status mcgstatus addr misc",
1508         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1509         .cmd        = hmp_mce,
1510     },
1511
1512 #endif
1513 SRST
1514 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1515   Inject an MCE on the given CPU (x86 only).
1516 ERST
1517
1518 #ifdef CONFIG_POSIX
1519     {
1520         .name       = "getfd",
1521         .args_type  = "fdname:s",
1522         .params     = "getfd name",
1523         .help       = "receive a file descriptor via SCM rights and assign it a name",
1524         .cmd        = hmp_getfd,
1525         .flags      = "p",
1526     },
1527
1528 SRST
1529 ``getfd`` *fdname*
1530   If a file descriptor is passed alongside this command using the SCM_RIGHTS
1531   mechanism on unix sockets, it is stored using the name *fdname* for
1532   later use by other monitor commands.
1533 ERST
1534 #endif
1535
1536     {
1537         .name       = "closefd",
1538         .args_type  = "fdname:s",
1539         .params     = "closefd name",
1540         .help       = "close a file descriptor previously passed via SCM rights",
1541         .cmd        = hmp_closefd,
1542         .flags      = "p",
1543     },
1544
1545 SRST
1546 ``closefd`` *fdname*
1547   Close the file descriptor previously assigned to *fdname* using the
1548   ``getfd`` command. This is only needed if the file descriptor was never
1549   used by another monitor command.
1550 ERST
1551
1552     {
1553         .name       = "block_set_io_throttle",
1554         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1555         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1556         .help       = "change I/O throttle limits for a block drive",
1557         .cmd        = hmp_block_set_io_throttle,
1558         .flags      = "p",
1559     },
1560
1561 SRST
1562 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1563   Change I/O throttle limits for a block drive to
1564   *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1565   *device* can be a block device name, a qdev ID or a QOM path.
1566 ERST
1567
1568     {
1569         .name       = "set_password",
1570         .args_type  = "protocol:s,password:s,display:-ds,connected:s?",
1571         .params     = "protocol password [-d display] [action-if-connected]",
1572         .help       = "set spice/vnc password",
1573         .cmd        = hmp_set_password,
1574     },
1575
1576 SRST
1577 ``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1578   Change spice/vnc password.  *display* can be used with 'vnc' to specify
1579   which display to set the password on.  *action-if-connected* specifies
1580   what should happen in case a connection is established: *fail* makes
1581   the password change fail.  *disconnect* changes the password and
1582   disconnects the client.  *keep* changes the password and keeps the
1583   connection up.  *keep* is the default.
1584 ERST
1585
1586     {
1587         .name       = "expire_password",
1588         .args_type  = "protocol:s,time:s,display:-ds",
1589         .params     = "protocol time [-d display]",
1590         .help       = "set spice/vnc password expire-time",
1591         .cmd        = hmp_expire_password,
1592     },
1593
1594 SRST
1595 ``expire_password [ vnc | spice ] expire-time [ -d display ]``
1596   Specify when a password for spice/vnc becomes invalid.
1597   *display* behaves the same as in ``set_password``.
1598   *expire-time* accepts:
1599
1600   ``now``
1601     Invalidate password instantly.
1602   ``never``
1603     Password stays valid forever.
1604   ``+``\ *nsec*
1605     Password stays valid for *nsec* seconds starting now.
1606   *nsec*
1607     Password is invalidated at the given time.  *nsec* are the seconds
1608     passed since 1970, i.e. unix epoch.
1609
1610 ERST
1611
1612     {
1613         .name       = "chardev-add",
1614         .args_type  = "args:s",
1615         .params     = "args",
1616         .help       = "add chardev",
1617         .cmd        = hmp_chardev_add,
1618         .command_completion = chardev_add_completion,
1619     },
1620
1621 SRST
1622 ``chardev-add`` *args*
1623   chardev-add accepts the same parameters as the -chardev command line switch.
1624 ERST
1625
1626     {
1627         .name       = "chardev-change",
1628         .args_type  = "id:s,args:s",
1629         .params     = "id args",
1630         .help       = "change chardev",
1631         .cmd        = hmp_chardev_change,
1632     },
1633
1634 SRST
1635 ``chardev-change`` *args*
1636   chardev-change accepts existing chardev *id* and then the same arguments
1637   as the -chardev command line switch (except for "id").
1638 ERST
1639
1640     {
1641         .name       = "chardev-remove",
1642         .args_type  = "id:s",
1643         .params     = "id",
1644         .help       = "remove chardev",
1645         .cmd        = hmp_chardev_remove,
1646         .command_completion = chardev_remove_completion,
1647     },
1648
1649 SRST
1650 ``chardev-remove`` *id*
1651   Removes the chardev *id*.
1652 ERST
1653
1654     {
1655         .name       = "chardev-send-break",
1656         .args_type  = "id:s",
1657         .params     = "id",
1658         .help       = "send a break on chardev",
1659         .cmd        = hmp_chardev_send_break,
1660         .command_completion = chardev_remove_completion,
1661     },
1662
1663 SRST
1664 ``chardev-send-break`` *id*
1665   Send a break on the chardev *id*.
1666 ERST
1667
1668     {
1669         .name       = "qemu-io",
1670         .args_type  = "qdev:-d,device:B,command:s",
1671         .params     = "[-d] [device] \"[command]\"",
1672         .help       = "run a qemu-io command on a block device\n\t\t\t"
1673                       "-d: [device] is a device ID rather than a "
1674                       "drive ID or node name",
1675         .cmd        = hmp_qemu_io,
1676     },
1677
1678 SRST
1679 ``qemu-io`` *device* *command*
1680   Executes a qemu-io command on the given block device.
1681 ERST
1682
1683     {
1684         .name       = "qom-list",
1685         .args_type  = "path:s?",
1686         .params     = "path",
1687         .help       = "list QOM properties",
1688         .cmd        = hmp_qom_list,
1689         .flags      = "p",
1690     },
1691
1692 SRST
1693 ``qom-list`` [*path*]
1694   Print QOM properties of object at location *path*
1695 ERST
1696
1697     {
1698         .name       = "qom-get",
1699         .args_type  = "path:s,property:s",
1700         .params     = "path property",
1701         .help       = "print QOM property",
1702         .cmd        = hmp_qom_get,
1703         .flags      = "p",
1704     },
1705
1706 SRST
1707 ``qom-get`` *path* *property*
1708   Print QOM property *property* of object at location *path*
1709 ERST
1710
1711     {
1712         .name       = "qom-set",
1713         .args_type  = "json:-j,path:s,property:s,value:S",
1714         .params     = "[-j] path property value",
1715         .help       = "set QOM property.\n\t\t\t"
1716                       "-j: the value is specified in json format.",
1717         .cmd        = hmp_qom_set,
1718         .flags      = "p",
1719     },
1720
1721 SRST
1722 ``qom-set`` *path* *property* *value*
1723   Set QOM property *property* of object at location *path* to value *value*
1724 ERST
1725
1726     {
1727         .name       = "replay_break",
1728         .args_type  = "icount:l",
1729         .params     = "icount",
1730         .help       = "set breakpoint at the specified instruction count",
1731         .cmd        = hmp_replay_break,
1732     },
1733
1734 SRST
1735 ``replay_break`` *icount*
1736   Set replay breakpoint at instruction count *icount*.
1737   Execution stops when the specified instruction is reached.
1738   There can be at most one breakpoint. When breakpoint is set, any prior
1739   one is removed.  The breakpoint may be set only in replay mode and only
1740   "in the future", i.e. at instruction counts greater than the current one.
1741   The current instruction count can be observed with ``info replay``.
1742 ERST
1743
1744     {
1745         .name       = "replay_delete_break",
1746         .args_type  = "",
1747         .params     = "",
1748         .help       = "remove replay breakpoint",
1749         .cmd        = hmp_replay_delete_break,
1750     },
1751
1752 SRST
1753 ``replay_delete_break``
1754   Remove replay breakpoint which was previously set with ``replay_break``.
1755   The command is ignored when there are no replay breakpoints.
1756 ERST
1757
1758     {
1759         .name       = "replay_seek",
1760         .args_type  = "icount:l",
1761         .params     = "icount",
1762         .help       = "replay execution to the specified instruction count",
1763         .cmd        = hmp_replay_seek,
1764     },
1765
1766 SRST
1767 ``replay_seek`` *icount*
1768   Automatically proceed to the instruction count *icount*, when
1769   replaying the execution. The command automatically loads nearest
1770   snapshot and replays the execution to find the desired instruction.
1771   When there is no preceding snapshot or the execution is not replayed,
1772   then the command fails.
1773   *icount* for the reference may be observed with ``info replay`` command.
1774 ERST
1775
1776     {
1777         .name       = "calc_dirty_rate",
1778         .args_type  = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1779         .params     = "[-r] [-b] second [sample_pages_per_GB]",
1780         .help       = "start a round of guest dirty rate measurement (using -r to"
1781                       "\n\t\t\t specify dirty ring as the method of calculation and"
1782                       "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
1783         .cmd        = hmp_calc_dirty_rate,
1784     },
1785
1786 SRST
1787 ``calc_dirty_rate`` *second*
1788   Start a round of dirty rate measurement with the period specified in *second*.
1789   The result of the dirty rate measurement may be observed with ``info
1790   dirty_rate`` command.
1791 ERST
1792
1793     {
1794         .name       = "set_vcpu_dirty_limit",
1795         .args_type  = "dirty_rate:l,cpu_index:l?",
1796         .params     = "dirty_rate [cpu_index]",
1797         .help       = "set dirty page rate limit, use cpu_index to set limit"
1798                       "\n\t\t\t\t\t on a specified virtual cpu",
1799         .cmd        = hmp_set_vcpu_dirty_limit,
1800     },
1801
1802 SRST
1803 ``set_vcpu_dirty_limit``
1804   Set dirty page rate limit on virtual CPU, the information about all the
1805   virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1806   command.
1807 ERST
1808
1809     {
1810         .name       = "cancel_vcpu_dirty_limit",
1811         .args_type  = "cpu_index:l?",
1812         .params     = "[cpu_index]",
1813         .help       = "cancel dirty page rate limit, use cpu_index to cancel"
1814                       "\n\t\t\t\t\t limit on a specified virtual cpu",
1815         .cmd        = hmp_cancel_vcpu_dirty_limit,
1816     },
1817
1818 SRST
1819 ``cancel_vcpu_dirty_limit``
1820   Cancel dirty page rate limit on virtual CPU, the information about all the
1821   virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1822   command.
1823 ERST
1824
1825     {
1826         .name       = "info",
1827         .args_type  = "item:s?",
1828         .params     = "[subcommand]",
1829         .help       = "show various information about the system state",
1830         .cmd        = hmp_info_help,
1831         .sub_table  = hmp_info_cmds,
1832         .flags      = "p",
1833     },
1834
1835 #if defined(CONFIG_FDT)
1836     {
1837         .name       = "dumpdtb",
1838         .args_type  = "filename:F",
1839         .params     = "filename",
1840         .help       = "dump the FDT in dtb format to 'filename'",
1841         .cmd        = hmp_dumpdtb,
1842     },
1843
1844 SRST
1845 ``dumpdtb`` *filename*
1846   Dump the FDT in dtb format to *filename*.
1847 ERST
1848 #endif
1849
1850 #if defined(CONFIG_XEN_EMU)
1851     {
1852         .name       = "xen-event-inject",
1853         .args_type  = "port:i",
1854         .params     = "port",
1855         .help       = "inject event channel",
1856         .cmd        = hmp_xen_event_inject,
1857     },
1858
1859 SRST
1860 ``xen-event-inject`` *port*
1861   Notify guest via event channel on port *port*.
1862 ERST
1863
1864
1865     {
1866         .name       = "xen-event-list",
1867         .args_type  = "",
1868         .params     = "",
1869         .help       = "list event channel state",
1870         .cmd        = hmp_xen_event_list,
1871     },
1872
1873 SRST
1874 ``xen-event-list``
1875   List event channels in the guest
1876 ERST
1877 #endif