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     {
 256         .name       = "screendump",
 257         .args_type  = "filename:F,format:-fs,device:s?,head:i?",
 258         .params     = "filename [-f format] [device [head]]",
 259         .help       = "save screen from head 'head' of display device 'device'"
 260                       "in specified format 'format' as image 'filename'."
 261                       "Currently only 'png' and 'ppm' formats are supported.",
 262          .cmd        = hmp_screendump,
 263         .coroutine  = true,
 264     },
 265
 266 SRST
 267 ``screendump`` *filename*
 268   Save screen into PPM image *filename*.
 269 ERST
 270
 271     {
 272         .name       = "logfile",
 273         .args_type  = "filename:F",
 274         .params     = "filename",
 275         .help       = "output logs to 'filename'",
 276         .cmd        = hmp_logfile,
 277     },
 278
 279 SRST
 280 ``logfile`` *filename*
 281   Output logs to *filename*.
 282 ERST
 283
 284     {
 285         .name       = "trace-event",
 286         .args_type  = "name:s,option:b,vcpu:i?",
 287         .params     = "name on|off [vcpu]",
 288         .help       = "changes status of a specific trace event "
 289                       "(vcpu: vCPU to set, default is all)",
 290         .cmd = hmp_trace_event,
 291         .command_completion = trace_event_completion,
 292     },
 293
 294 SRST
 295 ``trace-event``
 296   changes status of a trace event
 297 ERST
 298
 299 #if defined(CONFIG_TRACE_SIMPLE)
 300     {
 301         .name       = "trace-file",
 302         .args_type  = "op:s?,arg:F?",
 303         .params     = "on|off|flush|set [arg]",
 304         .help       = "open, close, or flush trace file, or set a new file name",
 305         .cmd        = hmp_trace_file,
 306     },
 307
 308 SRST
 309 ``trace-file on|off|flush``
 310   Open, close, or flush the trace file.  If no argument is given, the
 311   status of the trace file is displayed.
 312 ERST
 313 #endif
 314
 315     {
 316         .name       = "log",
 317         .args_type  = "items:s",
 318         .params     = "item1[,...]",
 319         .help       = "activate logging of the specified items",
 320         .cmd        = hmp_log,
 321     },
 322
 323 SRST
 324 ``log`` *item1*\ [,...]
 325   Activate logging of the specified items.
 326 ERST
 327
 328     {
 329         .name       = "savevm",
 330         .args_type  = "name:s?",
 331         .params     = "tag",
 332         .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
 333         .cmd        = hmp_savevm,
 334     },
 335
 336 SRST
 337 ``savevm`` *tag*
 338   Create a snapshot of the whole virtual machine. If *tag* is
 339   provided, it is used as human readable identifier. If there is already
 340   a snapshot with the same tag, it is replaced. More info at
 341   :ref:`vm_005fsnapshots`.
 342
 343   Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
 344   only *tag* as parameter.
 345 ERST
 346
 347     {
 348         .name       = "loadvm",
 349         .args_type  = "name:s",
 350         .params     = "tag",
 351         .help       = "restore a VM snapshot from its tag",
 352         .cmd        = hmp_loadvm,
 353         .command_completion = loadvm_completion,
 354     },
 355
 356 SRST
 357 ``loadvm`` *tag*
 358   Set the whole virtual machine to the snapshot identified by the tag
 359   *tag*.
 360
 361   Since 4.0, loadvm stopped accepting snapshot id as parameter.
 362 ERST
 363
 364     {
 365         .name       = "delvm",
 366         .args_type  = "name:s",
 367         .params     = "tag",
 368         .help       = "delete a VM snapshot from its tag",
 369         .cmd        = hmp_delvm,
 370         .command_completion = delvm_completion,
 371     },
 372
 373 SRST
 374 ``delvm`` *tag*
 375   Delete the snapshot identified by *tag*.
 376
 377   Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
 378   only *tag* as parameter.
 379 ERST
 380
 381     {
 382         .name       = "one-insn-per-tb",
 383         .args_type  = "option:s?",
 384         .params     = "[on|off]",
 385         .help       = "run emulation with one guest instruction per translation block",
 386         .cmd        = hmp_one_insn_per_tb,
 387     },
 388
 389 SRST
 390 ``one-insn-per-tb [off]``
 391   Run the emulation with one guest instruction per translation block.
 392   This slows down emulation a lot, but can be useful in some situations,
 393   such as when trying to analyse the logs produced by the ``-d`` option.
 394   This only has an effect when using TCG, not with KVM or other accelerators.
 395
 396   If called with option off, the emulation returns to normal mode.
 397 ERST
 398
 399     {
 400         .name       = "singlestep",
 401         .args_type  = "option:s?",
 402         .params     = "[on|off]",
 403         .help       = "deprecated synonym for one-insn-per-tb",
 404         .cmd        = hmp_one_insn_per_tb,
 405     },
 406
 407 SRST
 408 ``singlestep [off]``
 409   This is a deprecated synonym for the one-insn-per-tb command.
 410 ERST
 411
 412     {
 413         .name       = "stop|s",
 414         .args_type  = "",
 415         .params     = "",
 416         .help       = "stop emulation",
 417         .cmd        = hmp_stop,
 418     },
 419
 420 SRST
 421 ``stop`` or ``s``
 422   Stop emulation.
 423 ERST
 424
 425     {
 426         .name       = "cont|c",
 427         .args_type  = "",
 428         .params     = "",
 429         .help       = "resume emulation",
 430         .cmd        = hmp_cont,
 431     },
 432
 433 SRST
 434 ``cont`` or ``c``
 435   Resume emulation.
 436 ERST
 437
 438     {
 439         .name       = "system_wakeup",
 440         .args_type  = "",
 441         .params     = "",
 442         .help       = "wakeup guest from suspend",
 443         .cmd        = hmp_system_wakeup,
 444     },
 445
 446 SRST
 447 ``system_wakeup``
 448   Wakeup guest from suspend.
 449 ERST
 450
 451     {
 452         .name       = "gdbserver",
 453         .args_type  = "device:s?",
 454         .params     = "[device]",
 455         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 456         .cmd        = hmp_gdbserver,
 457     },
 458
 459 SRST
 460 ``gdbserver`` [*port*]
 461   Start gdbserver session (default *port*\=1234)
 462 ERST
 463
 464     {
 465         .name       = "x",
 466         .args_type  = "fmt:/,addr:l",
 467         .params     = "/fmt addr",
 468         .help       = "virtual memory dump starting at 'addr'",
 469         .cmd        = hmp_memory_dump,
 470     },
 471
 472 SRST
 473 ``x/``\ *fmt* *addr*
 474   Virtual memory dump starting at *addr*.
 475 ERST
 476
 477     {
 478         .name       = "xp",
 479         .args_type  = "fmt:/,addr:l",
 480         .params     = "/fmt addr",
 481         .help       = "physical memory dump starting at 'addr'",
 482         .cmd        = hmp_physical_memory_dump,
 483     },
 484
 485 SRST
 486 ``xp /``\ *fmt* *addr*
 487   Physical memory dump starting at *addr*.
 488
 489   *fmt* is a format which tells the command how to format the
 490   data. Its syntax is: ``/{count}{format}{size}``
 491
 492   *count*
 493     is the number of items to be dumped.
 494   *format*
 495     can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 496     c (char) or i (asm instruction).
 497   *size*
 498     can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 499     ``h`` or ``w`` can be specified with the ``i`` format to
 500     respectively select 16 or 32 bit code instruction size.
 501
 502   Examples:
 503
 504   Dump 10 instructions at the current instruction pointer::
 505
 506     (qemu) x/10i $eip
 507     0x90107063:  ret
 508     0x90107064:  sti
 509     0x90107065:  lea    0x0(%esi,1),%esi
 510     0x90107069:  lea    0x0(%edi,1),%edi
 511     0x90107070:  ret
 512     0x90107071:  jmp    0x90107080
 513     0x90107073:  nop
 514     0x90107074:  nop
 515     0x90107075:  nop
 516     0x90107076:  nop
 517
 518   Dump 80 16 bit values at the start of the video memory::
 519
 520     (qemu) xp/80hx 0xb8000
 521     0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 522     0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 523     0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 524     0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 525     0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 526     0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 527     0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 528     0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 529     0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 530     0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 531
 532 ERST
 533
 534     {
 535         .name       = "gpa2hva",
 536         .args_type  = "addr:l",
 537         .params     = "addr",
 538         .help       = "print the host virtual address corresponding to a guest physical address",
 539         .cmd        = hmp_gpa2hva,
 540     },
 541
 542 SRST
 543 ``gpa2hva`` *addr*
 544   Print the host virtual address at which the guest's physical address *addr*
 545   is mapped.
 546 ERST
 547
 548 #ifdef CONFIG_LINUX
 549     {
 550         .name       = "gpa2hpa",
 551         .args_type  = "addr:l",
 552         .params     = "addr",
 553         .help       = "print the host physical address corresponding to a guest physical address",
 554         .cmd        = hmp_gpa2hpa,
 555     },
 556 #endif
 557
 558 SRST
 559 ``gpa2hpa`` *addr*
 560   Print the host physical address at which the guest's physical address *addr*
 561   is mapped.
 562 ERST
 563
 564     {
 565         .name       = "gva2gpa",
 566         .args_type  = "addr:l",
 567         .params     = "addr",
 568         .help       = "print the guest physical address corresponding to a guest virtual address",
 569         .cmd        = hmp_gva2gpa,
 570     },
 571
 572 SRST
 573 ``gva2gpa`` *addr*
 574   Print the guest physical address at which the guest's virtual address *addr*
 575   is mapped based on the mapping for the current CPU.
 576 ERST
 577
 578     {
 579         .name       = "print|p",
 580         .args_type  = "fmt:/,val:l",
 581         .params     = "/fmt expr",
 582         .help       = "print expression value (use $reg for CPU register access)",
 583         .cmd        = hmp_print,
 584     },
 585
 586 SRST
 587 ``print`` or ``p/``\ *fmt* *expr*
 588   Print expression value. Only the *format* part of *fmt* is
 589   used.
 590 ERST
 591
 592     {
 593         .name       = "i",
 594         .args_type  = "fmt:/,addr:i,index:i.",
 595         .params     = "/fmt addr",
 596         .help       = "I/O port read",
 597         .cmd        = hmp_ioport_read,
 598     },
 599
 600 SRST
 601 ``i/``\ *fmt* *addr* [.\ *index*\ ]
 602   Read I/O port.
 603 ERST
 604
 605     {
 606         .name       = "o",
 607         .args_type  = "fmt:/,addr:i,val:i",
 608         .params     = "/fmt addr value",
 609         .help       = "I/O port write",
 610         .cmd        = hmp_ioport_write,
 611     },
 612
 613 SRST
 614 ``o/``\ *fmt* *addr* *val*
 615   Write to I/O port.
 616 ERST
 617
 618     {
 619         .name       = "sendkey",
 620         .args_type  = "keys:s,hold-time:i?",
 621         .params     = "keys [hold_ms]",
 622         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 623         .cmd        = hmp_sendkey,
 624         .command_completion = sendkey_completion,
 625     },
 626
 627 SRST
 628 ``sendkey`` *keys*
 629   Send *keys* to the guest. *keys* could be the name of the
 630   key or the raw value in hexadecimal format. Use ``-`` to press
 631   several keys simultaneously. Example::
 632
 633     sendkey ctrl-alt-f1
 634
 635   This command is useful to send keys that your graphical user interface
 636   intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
 637 ERST
 638     {
 639         .name       = "sync-profile",
 640         .args_type  = "op:s?",
 641         .params     = "[on|off|reset]",
 642         .help       = "enable, disable or reset synchronization profiling. "
 643                       "With no arguments, prints whether profiling is on or off.",
 644         .cmd        = hmp_sync_profile,
 645     },
 646
 647 SRST
 648 ``sync-profile [on|off|reset]``
 649   Enable, disable or reset synchronization profiling. With no arguments, prints
 650   whether profiling is on or off.
 651 ERST
 652
 653     {
 654         .name       = "system_reset",
 655         .args_type  = "",
 656         .params     = "",
 657         .help       = "reset the system",
 658         .cmd        = hmp_system_reset,
 659     },
 660
 661 SRST
 662 ``system_reset``
 663   Reset the system.
 664 ERST
 665
 666     {
 667         .name       = "system_powerdown",
 668         .args_type  = "",
 669         .params     = "",
 670         .help       = "send system power down event",
 671         .cmd        = hmp_system_powerdown,
 672     },
 673
 674 SRST
 675 ``system_powerdown``
 676   Power down the system (if supported).
 677 ERST
 678
 679     {
 680         .name       = "sum",
 681         .args_type  = "start:i,size:i",
 682         .params     = "addr size",
 683         .help       = "compute the checksum of a memory region",
 684         .cmd        = hmp_sum,
 685     },
 686
 687 SRST
 688 ``sum`` *addr* *size*
 689   Compute the checksum of a memory region.
 690 ERST
 691
 692     {
 693         .name       = "device_add",
 694         .args_type  = "device:O",
 695         .params     = "driver[,prop=value][,...]",
 696         .help       = "add device, like -device on the command line",
 697         .cmd        = hmp_device_add,
 698         .command_completion = device_add_completion,
 699     },
 700
 701 SRST
 702 ``device_add`` *config*
 703   Add device.
 704 ERST
 705
 706     {
 707         .name       = "device_del",
 708         .args_type  = "id:s",
 709         .params     = "device",
 710         .help       = "remove device",
 711         .cmd        = hmp_device_del,
 712         .command_completion = device_del_completion,
 713     },
 714
 715 SRST
 716 ``device_del`` *id*
 717   Remove device *id*. *id* may be a short ID
 718   or a QOM object path.
 719 ERST
 720
 721     {
 722         .name       = "cpu",
 723         .args_type  = "index:i",
 724         .params     = "index",
 725         .help       = "set the default CPU",
 726         .cmd        = hmp_cpu,
 727     },
 728
 729 SRST
 730 ``cpu`` *index*
 731   Set the default CPU.
 732 ERST
 733
 734     {
 735         .name       = "mouse_move",
 736         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 737         .params     = "dx dy [dz]",
 738         .help       = "send mouse move events",
 739         .cmd        = hmp_mouse_move,
 740     },
 741
 742 SRST
 743 ``mouse_move`` *dx* *dy* [*dz*]
 744   Move the active mouse to the specified coordinates *dx* *dy*
 745   with optional scroll axis *dz*.
 746 ERST
 747
 748     {
 749         .name       = "mouse_button",
 750         .args_type  = "button_state:i",
 751         .params     = "state",
 752         .help       = "change mouse button state (1=L, 2=M, 4=R)",
 753         .cmd        = hmp_mouse_button,
 754     },
 755
 756 SRST
 757 ``mouse_button`` *val*
 758   Change the active mouse button state *val* (1=L, 2=M, 4=R).
 759 ERST
 760
 761     {
 762         .name       = "mouse_set",
 763         .args_type  = "index:i",
 764         .params     = "index",
 765         .help       = "set which mouse device receives events",
 766         .cmd        = hmp_mouse_set,
 767     },
 768
 769 SRST
 770 ``mouse_set`` *index*
 771   Set which mouse device receives events at given *index*, index
 772   can be obtained with::
 773
 774     info mice
 775
 776 ERST
 777
 778     {
 779         .name       = "wavcapture",
 780         .args_type  = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
 781         .params     = "path audiodev [frequency [bits [channels]]]",
 782         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 783         .cmd        = hmp_wavcapture,
 784     },
 785 SRST
 786 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
 787   Capture audio into *filename* from *audiodev*, using sample rate
 788   *frequency* bits per sample *bits* and number of channels
 789   *channels*.
 790
 791   Defaults:
 792
 793   - Sample rate = 44100 Hz - CD quality
 794   - Bits = 16
 795   - Number of channels = 2 - Stereo
 796 ERST
 797
 798     {
 799         .name       = "stopcapture",
 800         .args_type  = "n:i",
 801         .params     = "capture index",
 802         .help       = "stop capture",
 803         .cmd        = hmp_stopcapture,
 804     },
 805 SRST
 806 ``stopcapture`` *index*
 807   Stop capture with a given *index*, index can be obtained with::
 808
 809     info capture
 810
 811 ERST
 812
 813     {
 814         .name       = "memsave",
 815         .args_type  = "val:l,size:i,filename:s",
 816         .params     = "addr size file",
 817         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 818         .cmd        = hmp_memsave,
 819     },
 820
 821 SRST
 822 ``memsave`` *addr* *size* *file*
 823   save to disk virtual memory dump starting at *addr* of size *size*.
 824 ERST
 825
 826     {
 827         .name       = "pmemsave",
 828         .args_type  = "val:l,size:i,filename:s",
 829         .params     = "addr size file",
 830         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 831         .cmd        = hmp_pmemsave,
 832     },
 833
 834 SRST
 835 ``pmemsave`` *addr* *size* *file*
 836   save to disk physical memory dump starting at *addr* of size *size*.
 837 ERST
 838
 839     {
 840         .name       = "boot_set",
 841         .args_type  = "bootdevice:s",
 842         .params     = "bootdevice",
 843         .help       = "define new values for the boot device list",
 844         .cmd        = hmp_boot_set,
 845     },
 846
 847 SRST
 848 ``boot_set`` *bootdevicelist*
 849   Define new values for the boot device list. Those values will override
 850   the values specified on the command line through the ``-boot`` option.
 851
 852   The values that can be specified here depend on the machine type, but are
 853   the same that can be specified in the ``-boot`` command line option.
 854 ERST
 855
 856     {
 857         .name       = "nmi",
 858         .args_type  = "",
 859         .params     = "",
 860         .help       = "inject an NMI",
 861         .cmd        = hmp_nmi,
 862     },
 863 SRST
 864 ``nmi`` *cpu*
 865   Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
 866 ERST
 867
 868     {
 869         .name       = "ringbuf_write",
 870         .args_type  = "device:s,data:s",
 871         .params     = "device data",
 872         .help       = "Write to a ring buffer character device",
 873         .cmd        = hmp_ringbuf_write,
 874         .command_completion = ringbuf_write_completion,
 875     },
 876
 877 SRST
 878 ``ringbuf_write`` *device* *data*
 879   Write *data* to ring buffer character device *device*.
 880   *data* must be a UTF-8 string.
 881 ERST
 882
 883     {
 884         .name       = "ringbuf_read",
 885         .args_type  = "device:s,size:i",
 886         .params     = "device size",
 887         .help       = "Read from a ring buffer character device",
 888         .cmd        = hmp_ringbuf_read,
 889         .command_completion = ringbuf_write_completion,
 890     },
 891
 892 SRST
 893 ``ringbuf_read`` *device*
 894   Read and print up to *size* bytes from ring buffer character
 895   device *device*.
 896   Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
 897   character code in hexadecimal.  Character ``\`` is printed ``\\``.
 898   Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 899   NUL characters, after the ring buffer lost data, and when reading
 900   stops because the size limit is reached.
 901 ERST
 902
 903     {
 904         .name       = "announce_self",
 905         .args_type  = "interfaces:s?,id:s?",
 906         .params     = "[interfaces] [id]",
 907         .help       = "Trigger GARP/RARP announcements",
 908         .cmd        = hmp_announce_self,
 909     },
 910
 911 SRST
 912 ``announce_self``
 913   Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
 914   updating the network infrastructure after a reconfiguration or some forms
 915   of migration. The timings of the round are set by the migration announce
 916   parameters. An optional comma separated *interfaces* list restricts the
 917   announce to the named set of interfaces. An optional *id* can be used to
 918   start a separate announce timer and to change the parameters of it later.
 919 ERST
 920
 921     {
 922         .name       = "migrate",
 923         .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
 924         .params     = "[-d] [-b] [-i] [-r] uri",
 925         .help       = "migrate to URI (using -d to not wait for completion)"
 926                       "\n\t\t\t -b for migration without shared storage with"
 927                       " full copy of disk\n\t\t\t -i for migration without "
 928                       "shared storage with incremental copy of disk "
 929                       "(base image shared between src and destination)"
 930                       "\n\t\t\t -r to resume a paused migration",
 931         .cmd        = hmp_migrate,
 932     },
 933
 934
 935 SRST
 936 ``migrate [-d] [-b] [-i]`` *uri*
 937   Migrate to *uri* (using -d to not wait for completion).
 938
 939   ``-b``
 940     for migration with full copy of disk
 941   ``-i``
 942     for migration with incremental copy of disk (base image is shared)
 943 ERST
 944
 945     {
 946         .name       = "migrate_cancel",
 947         .args_type  = "",
 948         .params     = "",
 949         .help       = "cancel the current VM migration",
 950         .cmd        = hmp_migrate_cancel,
 951     },
 952
 953 SRST
 954 ``migrate_cancel``
 955   Cancel the current VM migration.
 956 ERST
 957
 958     {
 959         .name       = "migrate_continue",
 960         .args_type  = "state:s",
 961         .params     = "state",
 962         .help       = "Continue migration from the given paused state",
 963         .cmd        = hmp_migrate_continue,
 964     },
 965 SRST
 966 ``migrate_continue`` *state*
 967   Continue migration from the paused state *state*
 968 ERST
 969
 970     {
 971         .name       = "migrate_incoming",
 972         .args_type  = "uri:s",
 973         .params     = "uri",
 974         .help       = "Continue an incoming migration from an -incoming defer",
 975         .cmd        = hmp_migrate_incoming,
 976     },
 977
 978 SRST
 979 ``migrate_incoming`` *uri*
 980   Continue an incoming migration using the *uri* (that has the same syntax
 981   as the ``-incoming`` option).
 982 ERST
 983
 984     {
 985         .name       = "migrate_recover",
 986         .args_type  = "uri:s",
 987         .params     = "uri",
 988         .help       = "Continue a paused incoming postcopy migration",
 989         .cmd        = hmp_migrate_recover,
 990     },
 991
 992 SRST
 993 ``migrate_recover`` *uri*
 994   Continue a paused incoming postcopy migration using the *uri*.
 995 ERST
 996
 997     {
 998         .name       = "migrate_pause",
 999         .args_type  = "",
1000         .params     = "",
1001         .help       = "Pause an ongoing migration (postcopy-only)",
1002         .cmd        = hmp_migrate_pause,
1003     },
1004
1005 SRST
1006 ``migrate_pause``
1007   Pause an ongoing migration.  Currently it only supports postcopy.
1008 ERST
1009
1010     {
1011         .name       = "migrate_set_capability",
1012         .args_type  = "capability:s,state:b",
1013         .params     = "capability state",
1014         .help       = "Enable/Disable the usage of a capability for migration",
1015         .cmd        = hmp_migrate_set_capability,
1016         .command_completion = migrate_set_capability_completion,
1017     },
1018
1019 SRST
1020 ``migrate_set_capability`` *capability* *state*
1021   Enable/Disable the usage of a capability *capability* for migration.
1022 ERST
1023
1024     {
1025         .name       = "migrate_set_parameter",
1026         .args_type  = "parameter:s,value:s",
1027         .params     = "parameter value",
1028         .help       = "Set the parameter for migration",
1029         .cmd        = hmp_migrate_set_parameter,
1030         .command_completion = migrate_set_parameter_completion,
1031     },
1032
1033 SRST
1034 ``migrate_set_parameter`` *parameter* *value*
1035   Set the parameter *parameter* for migration.
1036 ERST
1037
1038     {
1039         .name       = "migrate_start_postcopy",
1040         .args_type  = "",
1041         .params     = "",
1042         .help       = "Followup to a migration command to switch the migration"
1043                       " to postcopy mode. The postcopy-ram capability must "
1044                       "be set on both source and destination before the "
1045                       "original migration command .",
1046         .cmd        = hmp_migrate_start_postcopy,
1047     },
1048
1049 SRST
1050 ``migrate_start_postcopy``
1051   Switch in-progress migration to postcopy mode. Ignored after the end of
1052   migration (or once already in postcopy).
1053 ERST
1054
1055 #ifdef CONFIG_REPLICATION
1056     {
1057         .name       = "x_colo_lost_heartbeat",
1058         .args_type  = "",
1059         .params     = "",
1060         .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1061                       "a failover or takeover is needed.",
1062         .cmd = hmp_x_colo_lost_heartbeat,
1063     },
1064 #endif
1065
1066 SRST
1067 ``x_colo_lost_heartbeat``
1068   Tell COLO that heartbeat is lost, a failover or takeover is needed.
1069 ERST
1070
1071     {
1072         .name       = "client_migrate_info",
1073         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1074         .params     = "protocol hostname port tls-port cert-subject",
1075         .help       = "set migration information for remote display",
1076         .cmd        = hmp_client_migrate_info,
1077     },
1078
1079 SRST
1080 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1081   Set migration information for remote display.  This makes the server
1082   ask the client to automatically reconnect using the new parameters
1083   once migration finished successfully.  Only implemented for SPICE.
1084 ERST
1085
1086     {
1087         .name       = "dump-guest-memory",
1088         .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1089         .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1090         .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1091                       "-p: do paging to get guest's memory mapping.\n\t\t\t"
1092                       "-d: return immediately (do not wait for completion).\n\t\t\t"
1093                       "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1094                       "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1095                       "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1096                       "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1097                       "    for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
1098                       "begin: the starting physical address.\n\t\t\t"
1099                       "length: the memory size, in bytes.",
1100         .cmd        = hmp_dump_guest_memory,
1101     },
1102
1103 SRST
1104 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1105   \
1106 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1107   Dump guest memory to *protocol*. The file can be processed with crash or
1108   gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1109
1110   ``-p``
1111     do paging to get guest's memory mapping.
1112   ``-z``
1113     dump in kdump-compressed format, with zlib compression.
1114   ``-l``
1115     dump in kdump-compressed format, with lzo compression.
1116   ``-s``
1117     dump in kdump-compressed format, with snappy compression.
1118   ``-w``
1119     dump in Windows crashdump format (can be used instead of ELF-dump converting),
1120     for Windows x64 guests with vmcoreinfo driver only
1121   *filename*
1122     dump file name.
1123   *begin*
1124     the starting physical address. It's optional, and should be
1125     specified together with *length*.
1126   *length*
1127     the memory size, in bytes. It's optional, and should be specified
1128     together with *begin*.
1129
1130 ERST
1131
1132 #if defined(TARGET_S390X)
1133     {
1134         .name       = "dump-skeys",
1135         .args_type  = "filename:F",
1136         .params     = "",
1137         .help       = "Save guest storage keys into file 'filename'.\n",
1138         .cmd        = hmp_dump_skeys,
1139     },
1140 #endif
1141
1142 SRST
1143 ``dump-skeys`` *filename*
1144   Save guest storage keys to a file.
1145 ERST
1146
1147 #if defined(TARGET_S390X)
1148     {
1149         .name       = "migration_mode",
1150         .args_type  = "mode:i",
1151         .params     = "mode",
1152         .help       = "Enables or disables migration mode\n",
1153         .cmd        = hmp_migrationmode,
1154     },
1155 #endif
1156
1157 SRST
1158 ``migration_mode`` *mode*
1159   Enables or disables migration mode.
1160 ERST
1161
1162     {
1163         .name       = "snapshot_blkdev",
1164         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1165         .params     = "[-n] device [new-image-file] [format]",
1166         .help       = "initiates a live snapshot\n\t\t\t"
1167                       "of device. If a new image file is specified, the\n\t\t\t"
1168                       "new image file will become the new root image.\n\t\t\t"
1169                       "If format is specified, the snapshot file will\n\t\t\t"
1170                       "be created in that format.\n\t\t\t"
1171                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1172                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
1173                       "recreating it from scratch.",
1174         .cmd        = hmp_snapshot_blkdev,
1175     },
1176
1177 SRST
1178 ``snapshot_blkdev``
1179   Snapshot device, using snapshot file as target if provided
1180 ERST
1181
1182     {
1183         .name       = "snapshot_blkdev_internal",
1184         .args_type  = "device:B,name:s",
1185         .params     = "device name",
1186         .help       = "take an internal snapshot of device.\n\t\t\t"
1187                       "The format of the image used by device must\n\t\t\t"
1188                       "support it, such as qcow2.\n\t\t\t",
1189         .cmd        = hmp_snapshot_blkdev_internal,
1190     },
1191
1192 SRST
1193 ``snapshot_blkdev_internal``
1194   Take an internal snapshot on device if it support
1195 ERST
1196
1197     {
1198         .name       = "snapshot_delete_blkdev_internal",
1199         .args_type  = "device:B,name:s,id:s?",
1200         .params     = "device name [id]",
1201         .help       = "delete an internal snapshot of device.\n\t\t\t"
1202                       "If id is specified, qemu will try delete\n\t\t\t"
1203                       "the snapshot matching both id and name.\n\t\t\t"
1204                       "The format of the image used by device must\n\t\t\t"
1205                       "support it, such as qcow2.\n\t\t\t",
1206         .cmd        = hmp_snapshot_delete_blkdev_internal,
1207     },
1208
1209 SRST
1210 ``snapshot_delete_blkdev_internal``
1211   Delete an internal snapshot on device if it support
1212 ERST
1213
1214     {
1215         .name       = "drive_mirror",
1216         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1217         .params     = "[-n] [-f] device target [format]",
1218         .help       = "initiates live storage\n\t\t\t"
1219                       "migration for a device. The device's contents are\n\t\t\t"
1220                       "copied to the new image file, including data that\n\t\t\t"
1221                       "is written after the command is started.\n\t\t\t"
1222                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1223                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1224                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1225                       "so that the result does not need a backing file.\n\t\t\t",
1226         .cmd        = hmp_drive_mirror,
1227     },
1228 SRST
1229 ``drive_mirror``
1230   Start mirroring a block device's writes to a new destination,
1231   using the specified target.
1232 ERST
1233
1234     {
1235         .name       = "drive_backup",
1236         .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1237         .params     = "[-n] [-f] [-c] device target [format]",
1238         .help       = "initiates a point-in-time\n\t\t\t"
1239                       "copy for a device. The device's contents are\n\t\t\t"
1240                       "copied to the new image file, excluding data that\n\t\t\t"
1241                       "is written after the command is started.\n\t\t\t"
1242                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1243                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1244                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1245                       "so that the result does not need a backing file.\n\t\t\t"
1246                       "The -c flag requests QEMU to compress backup data\n\t\t\t"
1247                       "(if the target format supports it).\n\t\t\t",
1248         .cmd        = hmp_drive_backup,
1249     },
1250 SRST
1251 ``drive_backup``
1252   Start a point-in-time copy of a block device to a specified target.
1253 ERST
1254
1255     {
1256         .name       = "drive_add",
1257         .args_type  = "node:-n,pci_addr:s,opts:s",
1258         .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1259                       "[file=file][,if=type][,bus=n]\n"
1260                       "[,unit=m][,media=d][,index=i]\n"
1261                       "[,snapshot=on|off][,cache=on|off]\n"
1262                       "[,readonly=on|off][,copy-on-read=on|off]",
1263         .help       = "add drive to PCI storage controller",
1264         .cmd        = hmp_drive_add,
1265     },
1266
1267 SRST
1268 ``drive_add``
1269   Add drive to PCI storage controller.
1270 ERST
1271
1272     {
1273         .name       = "pcie_aer_inject_error",
1274         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1275                       "id:s,error_status:s,"
1276                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1277                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1278         .params     = "[-a] [-c] id "
1279                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1280         .help       = "inject pcie aer error\n\t\t\t"
1281                       " -a for advisory non fatal error\n\t\t\t"
1282                       " -c for correctable error\n\t\t\t"
1283                       "<id> = qdev device id\n\t\t\t"
1284                       "<error_status> = error string or 32bit\n\t\t\t"
1285                       "<tlp header> = 32bit x 4\n\t\t\t"
1286                       "<tlp header prefix> = 32bit x 4",
1287         .cmd        = hmp_pcie_aer_inject_error,
1288     },
1289
1290 SRST
1291 ``pcie_aer_inject_error``
1292   Inject PCIe AER error
1293 ERST
1294
1295     {
1296         .name       = "netdev_add",
1297         .args_type  = "netdev:O",
1298         .params     = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
1299 #ifdef CONFIG_AF_XDP
1300                       "|af-xdp"
1301 #endif
1302 #ifdef CONFIG_VMNET
1303                       "|vmnet-host|vmnet-shared|vmnet-bridged"
1304 #endif
1305                       "],id=str[,prop=value][,...]",
1306         .help       = "add host network device",
1307         .cmd        = hmp_netdev_add,
1308         .command_completion = netdev_add_completion,
1309         .flags      = "p",
1310     },
1311
1312 SRST
1313 ``netdev_add``
1314   Add host network device.
1315 ERST
1316
1317     {
1318         .name       = "netdev_del",
1319         .args_type  = "id:s",
1320         .params     = "id",
1321         .help       = "remove host network device",
1322         .cmd        = hmp_netdev_del,
1323         .command_completion = netdev_del_completion,
1324         .flags      = "p",
1325     },
1326
1327 SRST
1328 ``netdev_del``
1329   Remove host network device.
1330 ERST
1331
1332     {
1333         .name       = "object_add",
1334         .args_type  = "object:S",
1335         .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1336         .help       = "create QOM object",
1337         .cmd        = hmp_object_add,
1338         .command_completion = object_add_completion,
1339         .flags      = "p",
1340     },
1341
1342 SRST
1343 ``object_add``
1344   Create QOM object.
1345 ERST
1346
1347     {
1348         .name       = "object_del",
1349         .args_type  = "id:s",
1350         .params     = "id",
1351         .help       = "destroy QOM object",
1352         .cmd        = hmp_object_del,
1353         .command_completion = object_del_completion,
1354         .flags      = "p",
1355     },
1356
1357 SRST
1358 ``object_del``
1359   Destroy QOM object.
1360 ERST
1361
1362 #ifdef CONFIG_SLIRP
1363     {
1364         .name       = "hostfwd_add",
1365         .args_type  = "arg1:s,arg2:s?",
1366         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1367         .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1368         .cmd        = hmp_hostfwd_add,
1369     },
1370 #endif
1371 SRST
1372 ``hostfwd_add``
1373   Redirect TCP or UDP connections from host to guest (requires -net user).
1374 ERST
1375
1376 #ifdef CONFIG_SLIRP
1377     {
1378         .name       = "hostfwd_remove",
1379         .args_type  = "arg1:s,arg2:s?",
1380         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1381         .help       = "remove host-to-guest TCP or UDP redirection",
1382         .cmd        = hmp_hostfwd_remove,
1383     },
1384
1385 #endif
1386 SRST
1387 ``hostfwd_remove``
1388   Remove host-to-guest TCP or UDP redirection.
1389 ERST
1390
1391     {
1392         .name       = "balloon",
1393         .args_type  = "value:M",
1394         .params     = "target",
1395         .help       = "request VM to change its memory allocation (in MB)",
1396         .cmd        = hmp_balloon,
1397     },
1398
1399 SRST
1400 ``balloon`` *value*
1401   Request VM to change its memory allocation to *value* (in MB).
1402 ERST
1403
1404     {
1405         .name       = "set_link",
1406         .args_type  = "name:s,up:b",
1407         .params     = "name on|off",
1408         .help       = "change the link status of a network adapter",
1409         .cmd        = hmp_set_link,
1410         .command_completion = set_link_completion,
1411     },
1412
1413 SRST
1414 ``set_link`` *name* ``[on|off]``
1415   Switch link *name* on (i.e. up) or off (i.e. down).
1416 ERST
1417
1418     {
1419         .name       = "watchdog_action",
1420         .args_type  = "action:s",
1421         .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1422         .help       = "change watchdog action",
1423         .cmd        = hmp_watchdog_action,
1424         .command_completion = watchdog_action_completion,
1425     },
1426
1427 SRST
1428 ``watchdog_action``
1429   Change watchdog action.
1430 ERST
1431
1432     {
1433         .name       = "nbd_server_start",
1434         .args_type  = "all:-a,writable:-w,uri:s",
1435         .params     = "nbd_server_start [-a] [-w] host:port",
1436         .help       = "serve block devices on the given host and port",
1437         .cmd        = hmp_nbd_server_start,
1438         .flags      = "p",
1439     },
1440 SRST
1441 ``nbd_server_start`` *host*:*port*
1442   Start an NBD server on the given host and/or port.  If the ``-a``
1443   option is included, all of the virtual machine's block devices that
1444   have an inserted media on them are automatically exported; in this case,
1445   the ``-w`` option makes the devices writable too.
1446 ERST
1447
1448     {
1449         .name       = "nbd_server_add",
1450         .args_type  = "writable:-w,device:B,name:s?",
1451         .params     = "nbd_server_add [-w] device [name]",
1452         .help       = "export a block device via NBD",
1453         .cmd        = hmp_nbd_server_add,
1454         .flags      = "p",
1455     },
1456 SRST
1457 ``nbd_server_add`` *device* [ *name* ]
1458   Export a block device through QEMU's NBD server, which must be started
1459   beforehand with ``nbd_server_start``.  The ``-w`` option makes the
1460   exported device writable too.  The export name is controlled by *name*,
1461   defaulting to *device*.
1462 ERST
1463
1464     {
1465         .name       = "nbd_server_remove",
1466         .args_type  = "force:-f,name:s",
1467         .params     = "nbd_server_remove [-f] name",
1468         .help       = "remove an export previously exposed via NBD",
1469         .cmd        = hmp_nbd_server_remove,
1470         .flags      = "p",
1471     },
1472 SRST
1473 ``nbd_server_remove [-f]`` *name*
1474   Stop exporting a block device through QEMU's NBD server, which was
1475   previously started with ``nbd_server_add``.  The ``-f``
1476   option forces the server to drop the export immediately even if
1477   clients are connected; otherwise the command fails unless there are no
1478   clients.
1479 ERST
1480
1481     {
1482         .name       = "nbd_server_stop",
1483         .args_type  = "",
1484         .params     = "nbd_server_stop",
1485         .help       = "stop serving block devices using the NBD protocol",
1486         .cmd        = hmp_nbd_server_stop,
1487         .flags      = "p",
1488     },
1489 SRST
1490 ``nbd_server_stop``
1491   Stop the QEMU embedded NBD server.
1492 ERST
1493
1494
1495 #if defined(TARGET_I386)
1496
1497     {
1498         .name       = "mce",
1499         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1500         .params     = "[-b] cpu bank status mcgstatus addr misc",
1501         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1502         .cmd        = hmp_mce,
1503     },
1504
1505 #endif
1506 SRST
1507 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1508   Inject an MCE on the given CPU (x86 only).
1509 ERST
1510
1511 #ifdef CONFIG_POSIX
1512     {
1513         .name       = "getfd",
1514         .args_type  = "fdname:s",
1515         .params     = "getfd name",
1516         .help       = "receive a file descriptor via SCM rights and assign it a name",
1517         .cmd        = hmp_getfd,
1518         .flags      = "p",
1519     },
1520
1521 SRST
1522 ``getfd`` *fdname*
1523   If a file descriptor is passed alongside this command using the SCM_RIGHTS
1524   mechanism on unix sockets, it is stored using the name *fdname* for
1525   later use by other monitor commands.
1526 ERST
1527 #endif
1528
1529     {
1530         .name       = "closefd",
1531         .args_type  = "fdname:s",
1532         .params     = "closefd name",
1533         .help       = "close a file descriptor previously passed via SCM rights",
1534         .cmd        = hmp_closefd,
1535         .flags      = "p",
1536     },
1537
1538 SRST
1539 ``closefd`` *fdname*
1540   Close the file descriptor previously assigned to *fdname* using the
1541   ``getfd`` command. This is only needed if the file descriptor was never
1542   used by another monitor command.
1543 ERST
1544
1545     {
1546         .name       = "block_set_io_throttle",
1547         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1548         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1549         .help       = "change I/O throttle limits for a block drive",
1550         .cmd        = hmp_block_set_io_throttle,
1551         .flags      = "p",
1552     },
1553
1554 SRST
1555 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1556   Change I/O throttle limits for a block drive to
1557   *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1558   *device* can be a block device name, a qdev ID or a QOM path.
1559 ERST
1560
1561     {
1562         .name       = "set_password",
1563         .args_type  = "protocol:s,password:s,display:-ds,connected:s?",
1564         .params     = "protocol password [-d display] [action-if-connected]",
1565         .help       = "set spice/vnc password",
1566         .cmd        = hmp_set_password,
1567     },
1568
1569 SRST
1570 ``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1571   Change spice/vnc password.  *display* can be used with 'vnc' to specify
1572   which display to set the password on.  *action-if-connected* specifies
1573   what should happen in case a connection is established: *fail* makes
1574   the password change fail.  *disconnect* changes the password and
1575   disconnects the client.  *keep* changes the password and keeps the
1576   connection up.  *keep* is the default.
1577 ERST
1578
1579     {
1580         .name       = "expire_password",
1581         .args_type  = "protocol:s,time:s,display:-ds",
1582         .params     = "protocol time [-d display]",
1583         .help       = "set spice/vnc password expire-time",
1584         .cmd        = hmp_expire_password,
1585     },
1586
1587 SRST
1588 ``expire_password [ vnc | spice ] expire-time [ -d display ]``
1589   Specify when a password for spice/vnc becomes invalid.
1590   *display* behaves the same as in ``set_password``.
1591   *expire-time* accepts:
1592
1593   ``now``
1594     Invalidate password instantly.
1595   ``never``
1596     Password stays valid forever.
1597   ``+``\ *nsec*
1598     Password stays valid for *nsec* seconds starting now.
1599   *nsec*
1600     Password is invalidated at the given time.  *nsec* are the seconds
1601     passed since 1970, i.e. unix epoch.
1602
1603 ERST
1604
1605     {
1606         .name       = "chardev-add",
1607         .args_type  = "args:s",
1608         .params     = "args",
1609         .help       = "add chardev",
1610         .cmd        = hmp_chardev_add,
1611         .command_completion = chardev_add_completion,
1612     },
1613
1614 SRST
1615 ``chardev-add`` *args*
1616   chardev-add accepts the same parameters as the -chardev command line switch.
1617 ERST
1618
1619     {
1620         .name       = "chardev-change",
1621         .args_type  = "id:s,args:s",
1622         .params     = "id args",
1623         .help       = "change chardev",
1624         .cmd        = hmp_chardev_change,
1625     },
1626
1627 SRST
1628 ``chardev-change`` *args*
1629   chardev-change accepts existing chardev *id* and then the same arguments
1630   as the -chardev command line switch (except for "id").
1631 ERST
1632
1633     {
1634         .name       = "chardev-remove",
1635         .args_type  = "id:s",
1636         .params     = "id",
1637         .help       = "remove chardev",
1638         .cmd        = hmp_chardev_remove,
1639         .command_completion = chardev_remove_completion,
1640     },
1641
1642 SRST
1643 ``chardev-remove`` *id*
1644   Removes the chardev *id*.
1645 ERST
1646
1647     {
1648         .name       = "chardev-send-break",
1649         .args_type  = "id:s",
1650         .params     = "id",
1651         .help       = "send a break on chardev",
1652         .cmd        = hmp_chardev_send_break,
1653         .command_completion = chardev_remove_completion,
1654     },
1655
1656 SRST
1657 ``chardev-send-break`` *id*
1658   Send a break on the chardev *id*.
1659 ERST
1660
1661     {
1662         .name       = "qemu-io",
1663         .args_type  = "qdev:-d,device:B,command:s",
1664         .params     = "[-d] [device] \"[command]\"",
1665         .help       = "run a qemu-io command on a block device\n\t\t\t"
1666                       "-d: [device] is a device ID rather than a "
1667                       "drive ID or node name",
1668         .cmd        = hmp_qemu_io,
1669     },
1670
1671 SRST
1672 ``qemu-io`` *device* *command*
1673   Executes a qemu-io command on the given block device.
1674 ERST
1675
1676     {
1677         .name       = "qom-list",
1678         .args_type  = "path:s?",
1679         .params     = "path",
1680         .help       = "list QOM properties",
1681         .cmd        = hmp_qom_list,
1682         .flags      = "p",
1683     },
1684
1685 SRST
1686 ``qom-list`` [*path*]
1687   Print QOM properties of object at location *path*
1688 ERST
1689
1690     {
1691         .name       = "qom-get",
1692         .args_type  = "path:s,property:s",
1693         .params     = "path property",
1694         .help       = "print QOM property",
1695         .cmd        = hmp_qom_get,
1696         .flags      = "p",
1697     },
1698
1699 SRST
1700 ``qom-get`` *path* *property*
1701   Print QOM property *property* of object at location *path*
1702 ERST
1703
1704     {
1705         .name       = "qom-set",
1706         .args_type  = "json:-j,path:s,property:s,value:S",
1707         .params     = "[-j] path property value",
1708         .help       = "set QOM property.\n\t\t\t"
1709                       "-j: the value is specified in json format.",
1710         .cmd        = hmp_qom_set,
1711         .flags      = "p",
1712     },
1713
1714 SRST
1715 ``qom-set`` *path* *property* *value*
1716   Set QOM property *property* of object at location *path* to value *value*
1717 ERST
1718
1719     {
1720         .name       = "replay_break",
1721         .args_type  = "icount:l",
1722         .params     = "icount",
1723         .help       = "set breakpoint at the specified instruction count",
1724         .cmd        = hmp_replay_break,
1725     },
1726
1727 SRST
1728 ``replay_break`` *icount*
1729   Set replay breakpoint at instruction count *icount*.
1730   Execution stops when the specified instruction is reached.
1731   There can be at most one breakpoint. When breakpoint is set, any prior
1732   one is removed.  The breakpoint may be set only in replay mode and only
1733   "in the future", i.e. at instruction counts greater than the current one.
1734   The current instruction count can be observed with ``info replay``.
1735 ERST
1736
1737     {
1738         .name       = "replay_delete_break",
1739         .args_type  = "",
1740         .params     = "",
1741         .help       = "remove replay breakpoint",
1742         .cmd        = hmp_replay_delete_break,
1743     },
1744
1745 SRST
1746 ``replay_delete_break``
1747   Remove replay breakpoint which was previously set with ``replay_break``.
1748   The command is ignored when there are no replay breakpoints.
1749 ERST
1750
1751     {
1752         .name       = "replay_seek",
1753         .args_type  = "icount:l",
1754         .params     = "icount",
1755         .help       = "replay execution to the specified instruction count",
1756         .cmd        = hmp_replay_seek,
1757     },
1758
1759 SRST
1760 ``replay_seek`` *icount*
1761   Automatically proceed to the instruction count *icount*, when
1762   replaying the execution. The command automatically loads nearest
1763   snapshot and replays the execution to find the desired instruction.
1764   When there is no preceding snapshot or the execution is not replayed,
1765   then the command fails.
1766   *icount* for the reference may be observed with ``info replay`` command.
1767 ERST
1768
1769     {
1770         .name       = "calc_dirty_rate",
1771         .args_type  = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1772         .params     = "[-r] [-b] second [sample_pages_per_GB]",
1773         .help       = "start a round of guest dirty rate measurement (using -r to"
1774                       "\n\t\t\t specify dirty ring as the method of calculation and"
1775                       "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
1776         .cmd        = hmp_calc_dirty_rate,
1777     },
1778
1779 SRST
1780 ``calc_dirty_rate`` *second*
1781   Start a round of dirty rate measurement with the period specified in *second*.
1782   The result of the dirty rate measurement may be observed with ``info
1783   dirty_rate`` command.
1784 ERST
1785
1786     {
1787         .name       = "set_vcpu_dirty_limit",
1788         .args_type  = "dirty_rate:l,cpu_index:l?",
1789         .params     = "dirty_rate [cpu_index]",
1790         .help       = "set dirty page rate limit, use cpu_index to set limit"
1791                       "\n\t\t\t\t\t on a specified virtual cpu",
1792         .cmd        = hmp_set_vcpu_dirty_limit,
1793     },
1794
1795 SRST
1796 ``set_vcpu_dirty_limit``
1797   Set dirty page rate limit on virtual CPU, the information about all the
1798   virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1799   command.
1800 ERST
1801
1802     {
1803         .name       = "cancel_vcpu_dirty_limit",
1804         .args_type  = "cpu_index:l?",
1805         .params     = "[cpu_index]",
1806         .help       = "cancel dirty page rate limit, use cpu_index to cancel"
1807                       "\n\t\t\t\t\t limit on a specified virtual cpu",
1808         .cmd        = hmp_cancel_vcpu_dirty_limit,
1809     },
1810
1811 SRST
1812 ``cancel_vcpu_dirty_limit``
1813   Cancel dirty page rate limit on virtual CPU, the information about all the
1814   virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1815   command.
1816 ERST
1817
1818     {
1819         .name       = "info",
1820         .args_type  = "item:s?",
1821         .params     = "[subcommand]",
1822         .help       = "show various information about the system state",
1823         .cmd        = hmp_info_help,
1824         .sub_table  = hmp_info_cmds,
1825         .flags      = "p",
1826     },
1827
1828 #if defined(CONFIG_FDT)
1829     {
1830         .name       = "dumpdtb",
1831         .args_type  = "filename:F",
1832         .params     = "filename",
1833         .help       = "dump the FDT in dtb format to 'filename'",
1834         .cmd        = hmp_dumpdtb,
1835     },
1836
1837 SRST
1838 ``dumpdtb`` *filename*
1839   Dump the FDT in dtb format to *filename*.
1840 ERST
1841 #endif
1842
1843 #if defined(CONFIG_XEN_EMU)
1844     {
1845         .name       = "xen-event-inject",
1846         .args_type  = "port:i",
1847         .params     = "port",
1848         .help       = "inject event channel",
1849         .cmd        = hmp_xen_event_inject,
1850     },
1851
1852 SRST
1853 ``xen-event-inject`` *port*
1854   Notify guest via event channel on port *port*.
1855 ERST
1856
1857
1858     {
1859         .name       = "xen-event-list",
1860         .args_type  = "",
1861         .params     = "",
1862         .help       = "list event channel state",
1863         .cmd        = hmp_xen_event_list,
1864     },
1865
1866 SRST
1867 ``xen-event-list``
1868   List event channels in the guest
1869 ERST
1870 #endif