hmp-commands.hx

   1 HXCOMM Use DEFHEADING() to define headings in both help text and rST.
   2 HXCOMM Text between SRST and ERST is copied to the rST version and
   3 HXCOMM discarded from C version.
   4 HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
   5 HXCOMM monitor commands
   6 HXCOMM HXCOMM can be used for comments, discarded from both rST and C.
   7
   8
   9     {
  10         .name       = "help|?",
  11         .args_type  = "name:S?",
  12         .params     = "[cmd]",
  13         .help       = "show the help",
  14         .cmd        = do_help_cmd,
  15         .flags      = "p",
  16     },
  17
  18 SRST
  19 ``help`` or ``?`` [*cmd*]
  20   Show the help for all commands or just for command *cmd*.
  21 ERST
  22
  23     {
  24         .name       = "commit",
  25         .args_type  = "device:B",
  26         .params     = "device|all",
  27         .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
  28         .cmd        = hmp_commit,
  29     },
  30
  31 SRST
  32 ``commit``
  33   Commit changes to the disk images (if -snapshot is used) or backing files.
  34   If the backing file is smaller than the snapshot, then the backing file
  35   will be resized to be the same size as the snapshot.  If the snapshot is
  36   smaller than the backing file, the backing file will not be truncated.
  37   If you want the backing file to match the size of the smaller snapshot,
  38   you can safely truncate it yourself once the commit operation successfully
  39   completes.
  40 ERST
  41
  42     {
  43         .name       = "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     },
  82
  83 SRST
  84 ``block_resize``
  85   Resize a block image while a guest is running.  Usually requires guest
  86   action to see the updated size.  Resize to a lower size is supported,
  87   but should be used with extreme caution.  Note that this command only
  88   resizes image files, it can not resize block devices like LVM volumes.
  89 ERST
  90
  91     {
  92         .name       = "block_stream",
  93         .args_type  = "device:B,speed:o?,base:s?",
  94         .params     = "device [speed [base]]",
  95         .help       = "copy data from a backing file into a block device",
  96         .cmd        = hmp_block_stream,
  97     },
  98
  99 SRST
 100 ``block_stream``
 101   Copy data from a backing file into a block device.
 102 ERST
 103
 104     {
 105         .name       = "block_job_set_speed",
 106         .args_type  = "device:B,speed:o",
 107         .params     = "device speed",
 108         .help       = "set maximum speed for a background block operation",
 109         .cmd        = hmp_block_job_set_speed,
 110     },
 111
 112 SRST
 113 ``block_job_set_speed``
 114   Set maximum speed for a background block operation.
 115 ERST
 116
 117     {
 118         .name       = "block_job_cancel",
 119         .args_type  = "force:-f,device:B",
 120         .params     = "[-f] device",
 121         .help       = "stop an active background block operation (use -f"
 122                       "\n\t\t\t if you want to abort the operation immediately"
 123                       "\n\t\t\t instead of keep running until data is in sync)",
 124         .cmd        = hmp_block_job_cancel,
 125     },
 126
 127 SRST
 128 ``block_job_cancel``
 129   Stop an active background block operation (streaming, mirroring).
 130 ERST
 131
 132     {
 133         .name       = "block_job_complete",
 134         .args_type  = "device:B",
 135         .params     = "device",
 136         .help       = "stop an active background block operation",
 137         .cmd        = hmp_block_job_complete,
 138     },
 139
 140 SRST
 141 ``block_job_complete``
 142   Manually trigger completion of an active background block operation.
 143   For mirroring, this will switch the device to the destination path.
 144 ERST
 145
 146     {
 147         .name       = "block_job_pause",
 148         .args_type  = "device:B",
 149         .params     = "device",
 150         .help       = "pause an active background block operation",
 151         .cmd        = hmp_block_job_pause,
 152     },
 153
 154 SRST
 155 ``block_job_pause``
 156   Pause an active block streaming operation.
 157 ERST
 158
 159     {
 160         .name       = "block_job_resume",
 161         .args_type  = "device:B",
 162         .params     = "device",
 163         .help       = "resume a paused background block operation",
 164         .cmd        = hmp_block_job_resume,
 165     },
 166
 167 SRST
 168 ``block_job_resume``
 169   Resume a paused block streaming operation.
 170 ERST
 171
 172     {
 173         .name       = "eject",
 174         .args_type  = "force:-f,device:B",
 175         .params     = "[-f] device",
 176         .help       = "eject a removable medium (use -f to force it)",
 177         .cmd        = hmp_eject,
 178     },
 179
 180 SRST
 181 ``eject [-f]`` *device*
 182   Eject a removable medium (use -f to force it).
 183 ERST
 184
 185     {
 186         .name       = "drive_del",
 187         .args_type  = "id:B",
 188         .params     = "device",
 189         .help       = "remove host block device",
 190         .cmd        = hmp_drive_del,
 191     },
 192
 193 SRST
 194 ``drive_del`` *device*
 195   Remove host block device.  The result is that guest generated IO is no longer
 196   submitted against the host device underlying the disk.  Once a drive has
 197   been deleted, the QEMU Block layer returns -EIO which results in IO
 198   errors in the guest for applications that are reading/writing to the device.
 199   These errors are always reported to the guest, regardless of the drive's error
 200   actions (drive options rerror, werror).
 201 ERST
 202
 203     {
 204         .name       = "change",
 205         .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
 206         .params     = "device filename [format [read-only-mode]]",
 207         .help       = "change a removable medium, optional format",
 208         .cmd        = hmp_change,
 209     },
 210
 211 SRST
 212 ``change`` *device* *setting*
 213   Change the configuration of a device.
 214
 215   ``change`` *diskdevice* *filename* [*format* [*read-only-mode*]]
 216     Change the medium for a removable disk device to point to *filename*. eg::
 217
 218       (qemu) change ide1-cd0 /path/to/some.iso
 219
 220     *format* is optional.
 221
 222     *read-only-mode* may be used to change the read-only status of the device.
 223     It accepts the following values:
 224
 225     retain
 226       Retains the current status; this is the default.
 227
 228     read-only
 229       Makes the device read-only.
 230
 231     read-write
 232       Makes the device writable.
 233
 234   ``change vnc`` *display*,\ *options*
 235     Change the configuration of the VNC server. The valid syntax for *display*
 236     and *options* are described at :ref:`sec_005finvocation`. eg::
 237
 238       (qemu) change vnc localhost:1
 239
 240   ``change vnc password`` [*password*]
 241
 242     Change the password associated with the VNC server. If the new password
 243     is not supplied, the monitor will prompt for it to be entered. VNC
 244     passwords are only significant up to 8 letters. eg::
 245
 246       (qemu) change vnc password
 247       Password: ********
 248
 249 ERST
 250
 251     {
 252         .name       = "screendump",
 253         .args_type  = "filename:F,device:s?,head:i?",
 254         .params     = "filename [device [head]]",
 255         .help       = "save screen from head 'head' of display device 'device' "
 256                       "into PPM image 'filename'",
 257         .cmd        = hmp_screendump,
 258         .coroutine  = true,
 259     },
 260
 261 SRST
 262 ``screendump`` *filename*
 263   Save screen into PPM image *filename*.
 264 ERST
 265
 266     {
 267         .name       = "logfile",
 268         .args_type  = "filename:F",
 269         .params     = "filename",
 270         .help       = "output logs to 'filename'",
 271         .cmd        = hmp_logfile,
 272     },
 273
 274 SRST
 275 ``logfile`` *filename*
 276   Output logs to *filename*.
 277 ERST
 278
 279     {
 280         .name       = "trace-event",
 281         .args_type  = "name:s,option:b,vcpu:i?",
 282         .params     = "name on|off [vcpu]",
 283         .help       = "changes status of a specific trace event "
 284                       "(vcpu: vCPU to set, default is all)",
 285         .cmd = hmp_trace_event,
 286         .command_completion = trace_event_completion,
 287     },
 288
 289 SRST
 290 ``trace-event``
 291   changes status of a trace event
 292 ERST
 293
 294 #if defined(CONFIG_TRACE_SIMPLE)
 295     {
 296         .name       = "trace-file",
 297         .args_type  = "op:s?,arg:F?",
 298         .params     = "on|off|flush|set [arg]",
 299         .help       = "open, close, or flush trace file, or set a new file name",
 300         .cmd        = hmp_trace_file,
 301     },
 302
 303 SRST
 304 ``trace-file on|off|flush``
 305   Open, close, or flush the trace file.  If no argument is given, the
 306   status of the trace file is displayed.
 307 ERST
 308 #endif
 309
 310     {
 311         .name       = "log",
 312         .args_type  = "items:s",
 313         .params     = "item1[,...]",
 314         .help       = "activate logging of the specified items",
 315         .cmd        = hmp_log,
 316     },
 317
 318 SRST
 319 ``log`` *item1*\ [,...]
 320   Activate logging of the specified items.
 321 ERST
 322
 323     {
 324         .name       = "savevm",
 325         .args_type  = "name:s?",
 326         .params     = "tag",
 327         .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
 328         .cmd        = hmp_savevm,
 329     },
 330
 331 SRST
 332 ``savevm`` *tag*
 333   Create a snapshot of the whole virtual machine. If *tag* is
 334   provided, it is used as human readable identifier. If there is already
 335   a snapshot with the same tag, it is replaced. More info at
 336   :ref:`vm_005fsnapshots`.
 337
 338   Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
 339   only *tag* as parameter.
 340 ERST
 341
 342     {
 343         .name       = "loadvm",
 344         .args_type  = "name:s",
 345         .params     = "tag",
 346         .help       = "restore a VM snapshot from its tag",
 347         .cmd        = hmp_loadvm,
 348         .command_completion = loadvm_completion,
 349     },
 350
 351 SRST
 352 ``loadvm`` *tag*
 353   Set the whole virtual machine to the snapshot identified by the tag
 354   *tag*.
 355
 356   Since 4.0, loadvm stopped accepting snapshot id as parameter.
 357 ERST
 358
 359     {
 360         .name       = "delvm",
 361         .args_type  = "name:s",
 362         .params     = "tag",
 363         .help       = "delete a VM snapshot from its tag",
 364         .cmd        = hmp_delvm,
 365         .command_completion = delvm_completion,
 366     },
 367
 368 SRST
 369 ``delvm`` *tag*
 370   Delete the snapshot identified by *tag*.
 371
 372   Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
 373   only *tag* as parameter.
 374 ERST
 375
 376     {
 377         .name       = "singlestep",
 378         .args_type  = "option:s?",
 379         .params     = "[on|off]",
 380         .help       = "run emulation in singlestep mode or switch to normal mode",
 381         .cmd        = hmp_singlestep,
 382     },
 383
 384 SRST
 385 ``singlestep [off]``
 386   Run the emulation in single step mode.
 387   If called with option off, the emulation returns to normal mode.
 388 ERST
 389
 390     {
 391         .name       = "stop",
 392         .args_type  = "",
 393         .params     = "",
 394         .help       = "stop emulation",
 395         .cmd        = hmp_stop,
 396     },
 397
 398 SRST
 399 ``stop``
 400   Stop emulation.
 401 ERST
 402
 403     {
 404         .name       = "cont|c",
 405         .args_type  = "",
 406         .params     = "",
 407         .help       = "resume emulation",
 408         .cmd        = hmp_cont,
 409     },
 410
 411 SRST
 412 ``cont`` or ``c``
 413   Resume emulation.
 414 ERST
 415
 416     {
 417         .name       = "system_wakeup",
 418         .args_type  = "",
 419         .params     = "",
 420         .help       = "wakeup guest from suspend",
 421         .cmd        = hmp_system_wakeup,
 422     },
 423
 424 SRST
 425 ``system_wakeup``
 426   Wakeup guest from suspend.
 427 ERST
 428
 429     {
 430         .name       = "gdbserver",
 431         .args_type  = "device:s?",
 432         .params     = "[device]",
 433         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 434         .cmd        = hmp_gdbserver,
 435     },
 436
 437 SRST
 438 ``gdbserver`` [*port*]
 439   Start gdbserver session (default *port*\=1234)
 440 ERST
 441
 442     {
 443         .name       = "x",
 444         .args_type  = "fmt:/,addr:l",
 445         .params     = "/fmt addr",
 446         .help       = "virtual memory dump starting at 'addr'",
 447         .cmd        = hmp_memory_dump,
 448     },
 449
 450 SRST
 451 ``x/``\ *fmt* *addr*
 452   Virtual memory dump starting at *addr*.
 453 ERST
 454
 455     {
 456         .name       = "xp",
 457         .args_type  = "fmt:/,addr:l",
 458         .params     = "/fmt addr",
 459         .help       = "physical memory dump starting at 'addr'",
 460         .cmd        = hmp_physical_memory_dump,
 461     },
 462
 463 SRST
 464 ``xp /``\ *fmt* *addr*
 465   Physical memory dump starting at *addr*.
 466
 467   *fmt* is a format which tells the command how to format the
 468   data. Its syntax is: ``/{count}{format}{size}``
 469
 470   *count*
 471     is the number of items to be dumped.
 472   *format*
 473     can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 474     c (char) or i (asm instruction).
 475   *size*
 476     can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 477     ``h`` or ``w`` can be specified with the ``i`` format to
 478     respectively select 16 or 32 bit code instruction size.
 479
 480   Examples:
 481
 482   Dump 10 instructions at the current instruction pointer::
 483
 484     (qemu) x/10i $eip
 485     0x90107063:  ret
 486     0x90107064:  sti
 487     0x90107065:  lea    0x0(%esi,1),%esi
 488     0x90107069:  lea    0x0(%edi,1),%edi
 489     0x90107070:  ret
 490     0x90107071:  jmp    0x90107080
 491     0x90107073:  nop
 492     0x90107074:  nop
 493     0x90107075:  nop
 494     0x90107076:  nop
 495
 496   Dump 80 16 bit values at the start of the video memory::
 497
 498     (qemu) xp/80hx 0xb8000
 499     0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 500     0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 501     0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 502     0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 503     0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 504     0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 505     0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 506     0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 507     0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 508     0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 509
 510 ERST
 511
 512     {
 513         .name       = "gpa2hva",
 514         .args_type  = "addr:l",
 515         .params     = "addr",
 516         .help       = "print the host virtual address corresponding to a guest physical address",
 517         .cmd        = hmp_gpa2hva,
 518     },
 519
 520 SRST
 521 ``gpa2hva`` *addr*
 522   Print the host virtual address at which the guest's physical address *addr*
 523   is mapped.
 524 ERST
 525
 526 #ifdef CONFIG_LINUX
 527     {
 528         .name       = "gpa2hpa",
 529         .args_type  = "addr:l",
 530         .params     = "addr",
 531         .help       = "print the host physical address corresponding to a guest physical address",
 532         .cmd        = hmp_gpa2hpa,
 533     },
 534 #endif
 535
 536 SRST
 537 ``gpa2hpa`` *addr*
 538   Print the host physical address at which the guest's physical address *addr*
 539   is mapped.
 540 ERST
 541
 542     {
 543         .name       = "gva2gpa",
 544         .args_type  = "addr:l",
 545         .params     = "addr",
 546         .help       = "print the guest physical address corresponding to a guest virtual address",
 547         .cmd        = hmp_gva2gpa,
 548     },
 549
 550 SRST
 551 ``gva2gpa`` *addr*
 552   Print the guest physical address at which the guest's virtual address *addr*
 553   is mapped based on the mapping for the current CPU.
 554 ERST
 555
 556     {
 557         .name       = "print|p",
 558         .args_type  = "fmt:/,val:l",
 559         .params     = "/fmt expr",
 560         .help       = "print expression value (use $reg for CPU register access)",
 561         .cmd        = do_print,
 562     },
 563
 564 SRST
 565 ``print`` or ``p/``\ *fmt* *expr*
 566   Print expression value. Only the *format* part of *fmt* is
 567   used.
 568 ERST
 569
 570     {
 571         .name       = "i",
 572         .args_type  = "fmt:/,addr:i,index:i.",
 573         .params     = "/fmt addr",
 574         .help       = "I/O port read",
 575         .cmd        = hmp_ioport_read,
 576     },
 577
 578 SRST
 579 ``i/``\ *fmt* *addr* [.\ *index*\ ]
 580   Read I/O port.
 581 ERST
 582
 583     {
 584         .name       = "o",
 585         .args_type  = "fmt:/,addr:i,val:i",
 586         .params     = "/fmt addr value",
 587         .help       = "I/O port write",
 588         .cmd        = hmp_ioport_write,
 589     },
 590
 591 SRST
 592 ``o/``\ *fmt* *addr* *val*
 593   Write to I/O port.
 594 ERST
 595
 596     {
 597         .name       = "sendkey",
 598         .args_type  = "keys:s,hold-time:i?",
 599         .params     = "keys [hold_ms]",
 600         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 601         .cmd        = hmp_sendkey,
 602         .command_completion = sendkey_completion,
 603     },
 604
 605 SRST
 606 ``sendkey`` *keys*
 607   Send *keys* to the guest. *keys* could be the name of the
 608   key or the raw value in hexadecimal format. Use ``-`` to press
 609   several keys simultaneously. Example::
 610
 611     sendkey ctrl-alt-f1
 612
 613   This command is useful to send keys that your graphical user interface
 614   intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
 615 ERST
 616     {
 617         .name       = "sync-profile",
 618         .args_type  = "op:s?",
 619         .params     = "[on|off|reset]",
 620         .help       = "enable, disable or reset synchronization profiling. "
 621                       "With no arguments, prints whether profiling is on or off.",
 622         .cmd        = hmp_sync_profile,
 623     },
 624
 625 SRST
 626 ``sync-profile [on|off|reset]``
 627   Enable, disable or reset synchronization profiling. With no arguments, prints
 628   whether profiling is on or off.
 629 ERST
 630
 631     {
 632         .name       = "system_reset",
 633         .args_type  = "",
 634         .params     = "",
 635         .help       = "reset the system",
 636         .cmd        = hmp_system_reset,
 637     },
 638
 639 SRST
 640 ``system_reset``
 641   Reset the system.
 642 ERST
 643
 644     {
 645         .name       = "system_powerdown",
 646         .args_type  = "",
 647         .params     = "",
 648         .help       = "send system power down event",
 649         .cmd        = hmp_system_powerdown,
 650     },
 651
 652 SRST
 653 ``system_powerdown``
 654   Power down the system (if supported).
 655 ERST
 656
 657     {
 658         .name       = "sum",
 659         .args_type  = "start:i,size:i",
 660         .params     = "addr size",
 661         .help       = "compute the checksum of a memory region",
 662         .cmd        = hmp_sum,
 663     },
 664
 665 SRST
 666 ``sum`` *addr* *size*
 667   Compute the checksum of a memory region.
 668 ERST
 669
 670     {
 671         .name       = "device_add",
 672         .args_type  = "device:O",
 673         .params     = "driver[,prop=value][,...]",
 674         .help       = "add device, like -device on the command line",
 675         .cmd        = hmp_device_add,
 676         .command_completion = device_add_completion,
 677     },
 678
 679 SRST
 680 ``device_add`` *config*
 681   Add device.
 682 ERST
 683
 684     {
 685         .name       = "device_del",
 686         .args_type  = "id:s",
 687         .params     = "device",
 688         .help       = "remove device",
 689         .cmd        = hmp_device_del,
 690         .command_completion = device_del_completion,
 691     },
 692
 693 SRST
 694 ``device_del`` *id*
 695   Remove device *id*. *id* may be a short ID
 696   or a QOM object path.
 697 ERST
 698
 699     {
 700         .name       = "cpu",
 701         .args_type  = "index:i",
 702         .params     = "index",
 703         .help       = "set the default CPU",
 704         .cmd        = hmp_cpu,
 705     },
 706
 707 SRST
 708 ``cpu`` *index*
 709   Set the default CPU.
 710 ERST
 711
 712     {
 713         .name       = "mouse_move",
 714         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 715         .params     = "dx dy [dz]",
 716         .help       = "send mouse move events",
 717         .cmd        = hmp_mouse_move,
 718     },
 719
 720 SRST
 721 ``mouse_move`` *dx* *dy* [*dz*]
 722   Move the active mouse to the specified coordinates *dx* *dy*
 723   with optional scroll axis *dz*.
 724 ERST
 725
 726     {
 727         .name       = "mouse_button",
 728         .args_type  = "button_state:i",
 729         .params     = "state",
 730         .help       = "change mouse button state (1=L, 2=M, 4=R)",
 731         .cmd        = hmp_mouse_button,
 732     },
 733
 734 SRST
 735 ``mouse_button`` *val*
 736   Change the active mouse button state *val* (1=L, 2=M, 4=R).
 737 ERST
 738
 739     {
 740         .name       = "mouse_set",
 741         .args_type  = "index:i",
 742         .params     = "index",
 743         .help       = "set which mouse device receives events",
 744         .cmd        = hmp_mouse_set,
 745     },
 746
 747 SRST
 748 ``mouse_set`` *index*
 749   Set which mouse device receives events at given *index*, index
 750   can be obtained with::
 751
 752     info mice
 753
 754 ERST
 755
 756     {
 757         .name       = "wavcapture",
 758         .args_type  = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
 759         .params     = "path audiodev [frequency [bits [channels]]]",
 760         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 761         .cmd        = hmp_wavcapture,
 762     },
 763 SRST
 764 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
 765   Capture audio into *filename* from *audiodev*, using sample rate
 766   *frequency* bits per sample *bits* and number of channels
 767   *channels*.
 768
 769   Defaults:
 770
 771   - Sample rate = 44100 Hz - CD quality
 772   - Bits = 16
 773   - Number of channels = 2 - Stereo
 774 ERST
 775
 776     {
 777         .name       = "stopcapture",
 778         .args_type  = "n:i",
 779         .params     = "capture index",
 780         .help       = "stop capture",
 781         .cmd        = hmp_stopcapture,
 782     },
 783 SRST
 784 ``stopcapture`` *index*
 785   Stop capture with a given *index*, index can be obtained with::
 786
 787     info capture
 788
 789 ERST
 790
 791     {
 792         .name       = "memsave",
 793         .args_type  = "val:l,size:i,filename:s",
 794         .params     = "addr size file",
 795         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 796         .cmd        = hmp_memsave,
 797     },
 798
 799 SRST
 800 ``memsave`` *addr* *size* *file*
 801   save to disk virtual memory dump starting at *addr* of size *size*.
 802 ERST
 803
 804     {
 805         .name       = "pmemsave",
 806         .args_type  = "val:l,size:i,filename:s",
 807         .params     = "addr size file",
 808         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 809         .cmd        = hmp_pmemsave,
 810     },
 811
 812 SRST
 813 ``pmemsave`` *addr* *size* *file*
 814   save to disk physical memory dump starting at *addr* of size *size*.
 815 ERST
 816
 817     {
 818         .name       = "boot_set",
 819         .args_type  = "bootdevice:s",
 820         .params     = "bootdevice",
 821         .help       = "define new values for the boot device list",
 822         .cmd        = hmp_boot_set,
 823     },
 824
 825 SRST
 826 ``boot_set`` *bootdevicelist*
 827   Define new values for the boot device list. Those values will override
 828   the values specified on the command line through the ``-boot`` option.
 829
 830   The values that can be specified here depend on the machine type, but are
 831   the same that can be specified in the ``-boot`` command line option.
 832 ERST
 833
 834     {
 835         .name       = "nmi",
 836         .args_type  = "",
 837         .params     = "",
 838         .help       = "inject an NMI",
 839         .cmd        = hmp_nmi,
 840     },
 841 SRST
 842 ``nmi`` *cpu*
 843   Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
 844 ERST
 845
 846     {
 847         .name       = "ringbuf_write",
 848         .args_type  = "device:s,data:s",
 849         .params     = "device data",
 850         .help       = "Write to a ring buffer character device",
 851         .cmd        = hmp_ringbuf_write,
 852         .command_completion = ringbuf_write_completion,
 853     },
 854
 855 SRST
 856 ``ringbuf_write`` *device* *data*
 857   Write *data* to ring buffer character device *device*.
 858   *data* must be a UTF-8 string.
 859 ERST
 860
 861     {
 862         .name       = "ringbuf_read",
 863         .args_type  = "device:s,size:i",
 864         .params     = "device size",
 865         .help       = "Read from a ring buffer character device",
 866         .cmd        = hmp_ringbuf_read,
 867         .command_completion = ringbuf_write_completion,
 868     },
 869
 870 SRST
 871 ``ringbuf_read`` *device*
 872   Read and print up to *size* bytes from ring buffer character
 873   device *device*.
 874   Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
 875   character code in hexadecimal.  Character ``\`` is printed ``\\``.
 876   Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 877   NUL characters, after the ring buffer lost data, and when reading
 878   stops because the size limit is reached.
 879 ERST
 880
 881     {
 882         .name       = "announce_self",
 883         .args_type  = "interfaces:s?,id:s?",
 884         .params     = "[interfaces] [id]",
 885         .help       = "Trigger GARP/RARP announcements",
 886         .cmd        = hmp_announce_self,
 887     },
 888
 889 SRST
 890 ``announce_self``
 891   Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
 892   updating the network infrastructure after a reconfiguration or some forms
 893   of migration. The timings of the round are set by the migration announce
 894   parameters. An optional comma separated *interfaces* list restricts the
 895   announce to the named set of interfaces. An optional *id* can be used to
 896   start a separate announce timer and to change the parameters of it later.
 897 ERST
 898
 899     {
 900         .name       = "migrate",
 901         .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
 902         .params     = "[-d] [-b] [-i] [-r] uri",
 903         .help       = "migrate to URI (using -d to not wait for completion)"
 904                       "\n\t\t\t -b for migration without shared storage with"
 905                       " full copy of disk\n\t\t\t -i for migration without "
 906                       "shared storage with incremental copy of disk "
 907                       "(base image shared between src and destination)"
 908                       "\n\t\t\t -r to resume a paused migration",
 909         .cmd        = hmp_migrate,
 910     },
 911
 912
 913 SRST
 914 ``migrate [-d] [-b] [-i]`` *uri*
 915   Migrate to *uri* (using -d to not wait for completion).
 916
 917   ``-b``
 918     for migration with full copy of disk
 919   ``-i``
 920     for migration with incremental copy of disk (base image is shared)
 921 ERST
 922
 923     {
 924         .name       = "migrate_cancel",
 925         .args_type  = "",
 926         .params     = "",
 927         .help       = "cancel the current VM migration",
 928         .cmd        = hmp_migrate_cancel,
 929     },
 930
 931 SRST
 932 ``migrate_cancel``
 933   Cancel the current VM migration.
 934 ERST
 935
 936     {
 937         .name       = "migrate_continue",
 938         .args_type  = "state:s",
 939         .params     = "state",
 940         .help       = "Continue migration from the given paused state",
 941         .cmd        = hmp_migrate_continue,
 942     },
 943 SRST
 944 ``migrate_continue`` *state*
 945   Continue migration from the paused state *state*
 946 ERST
 947
 948     {
 949         .name       = "migrate_incoming",
 950         .args_type  = "uri:s",
 951         .params     = "uri",
 952         .help       = "Continue an incoming migration from an -incoming defer",
 953         .cmd        = hmp_migrate_incoming,
 954     },
 955
 956 SRST
 957 ``migrate_incoming`` *uri*
 958   Continue an incoming migration using the *uri* (that has the same syntax
 959   as the ``-incoming`` option).
 960 ERST
 961
 962     {
 963         .name       = "migrate_recover",
 964         .args_type  = "uri:s",
 965         .params     = "uri",
 966         .help       = "Continue a paused incoming postcopy migration",
 967         .cmd        = hmp_migrate_recover,
 968     },
 969
 970 SRST
 971 ``migrate_recover`` *uri*
 972   Continue a paused incoming postcopy migration using the *uri*.
 973 ERST
 974
 975     {
 976         .name       = "migrate_pause",
 977         .args_type  = "",
 978         .params     = "",
 979         .help       = "Pause an ongoing migration (postcopy-only)",
 980         .cmd        = hmp_migrate_pause,
 981     },
 982
 983 SRST
 984 ``migrate_pause``
 985   Pause an ongoing migration.  Currently it only supports postcopy.
 986 ERST
 987
 988     {
 989         .name       = "migrate_set_cache_size",
 990         .args_type  = "value:o",
 991         .params     = "value",
 992         .help       = "set cache size (in bytes) for XBZRLE migrations,"
 993                       "the cache size will be rounded down to the nearest "
 994                       "power of 2.\n"
 995                       "The cache size affects the number of cache misses."
 996                       "In case of a high cache miss ratio you need to increase"
 997                       " the cache size",
 998         .cmd        = hmp_migrate_set_cache_size,
 999     },
1000
1001 SRST
1002 ``migrate_set_cache_size`` *value*
1003   Set cache size to *value* (in bytes) for xbzrle migrations.
1004 ERST
1005
1006     {
1007         .name       = "migrate_set_speed",
1008         .args_type  = "value:o",
1009         .params     = "value",
1010         .help       = "set maximum speed (in bytes) for migrations. "
1011         "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1012         .cmd        = hmp_migrate_set_speed,
1013     },
1014
1015 SRST
1016 ``migrate_set_speed`` *value*
1017   Set maximum speed to *value* (in bytes) for migrations.
1018 ERST
1019
1020     {
1021         .name       = "migrate_set_downtime",
1022         .args_type  = "value:T",
1023         .params     = "value",
1024         .help       = "set maximum tolerated downtime (in seconds) for migrations",
1025         .cmd        = hmp_migrate_set_downtime,
1026     },
1027
1028 SRST
1029 ``migrate_set_downtime`` *second*
1030   Set maximum tolerated downtime (in seconds) for migration.
1031 ERST
1032
1033     {
1034         .name       = "migrate_set_capability",
1035         .args_type  = "capability:s,state:b",
1036         .params     = "capability state",
1037         .help       = "Enable/Disable the usage of a capability for migration",
1038         .cmd        = hmp_migrate_set_capability,
1039         .command_completion = migrate_set_capability_completion,
1040     },
1041
1042 SRST
1043 ``migrate_set_capability`` *capability* *state*
1044   Enable/Disable the usage of a capability *capability* for migration.
1045 ERST
1046
1047     {
1048         .name       = "migrate_set_parameter",
1049         .args_type  = "parameter:s,value:s",
1050         .params     = "parameter value",
1051         .help       = "Set the parameter for migration",
1052         .cmd        = hmp_migrate_set_parameter,
1053         .command_completion = migrate_set_parameter_completion,
1054     },
1055
1056 SRST
1057 ``migrate_set_parameter`` *parameter* *value*
1058   Set the parameter *parameter* for migration.
1059 ERST
1060
1061     {
1062         .name       = "migrate_start_postcopy",
1063         .args_type  = "",
1064         .params     = "",
1065         .help       = "Followup to a migration command to switch the migration"
1066                       " to postcopy mode. The postcopy-ram capability must "
1067                       "be set on both source and destination before the "
1068                       "original migration command .",
1069         .cmd        = hmp_migrate_start_postcopy,
1070     },
1071
1072 SRST
1073 ``migrate_start_postcopy``
1074   Switch in-progress migration to postcopy mode. Ignored after the end of
1075   migration (or once already in postcopy).
1076 ERST
1077
1078     {
1079         .name       = "x_colo_lost_heartbeat",
1080         .args_type  = "",
1081         .params     = "",
1082         .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1083                       "a failover or takeover is needed.",
1084         .cmd = hmp_x_colo_lost_heartbeat,
1085     },
1086
1087 SRST
1088 ``x_colo_lost_heartbeat``
1089   Tell COLO that heartbeat is lost, a failover or takeover is needed.
1090 ERST
1091
1092     {
1093         .name       = "client_migrate_info",
1094         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1095         .params     = "protocol hostname port tls-port cert-subject",
1096         .help       = "set migration information for remote display",
1097         .cmd        = hmp_client_migrate_info,
1098     },
1099
1100 SRST
1101 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1102   Set migration information for remote display.  This makes the server
1103   ask the client to automatically reconnect using the new parameters
1104   once migration finished successfully.  Only implemented for SPICE.
1105 ERST
1106
1107     {
1108         .name       = "dump-guest-memory",
1109         .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1110         .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1111         .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1112                       "-p: do paging to get guest's memory mapping.\n\t\t\t"
1113                       "-d: return immediately (do not wait for completion).\n\t\t\t"
1114                       "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1115                       "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1116                       "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1117                       "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1118                       "    for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1119                       "begin: the starting physical address.\n\t\t\t"
1120                       "length: the memory size, in bytes.",
1121         .cmd        = hmp_dump_guest_memory,
1122     },
1123
1124 SRST
1125 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1126   \
1127 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1128   Dump guest memory to *protocol*. The file can be processed with crash or
1129   gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1130
1131   ``-p``
1132     do paging to get guest's memory mapping.
1133   ``-z``
1134     dump in kdump-compressed format, with zlib compression.
1135   ``-l``
1136     dump in kdump-compressed format, with lzo compression.
1137   ``-s``
1138     dump in kdump-compressed format, with snappy compression.
1139   ``-w``
1140     dump in Windows crashdump format (can be used instead of ELF-dump converting),
1141     for Windows x64 guests with vmcoreinfo driver only
1142   *filename*
1143     dump file name.
1144   *begin*
1145     the starting physical address. It's optional, and should be
1146     specified together with *length*.
1147   *length*
1148     the memory size, in bytes. It's optional, and should be specified
1149     together with *begin*.
1150
1151 ERST
1152
1153 #if defined(TARGET_S390X)
1154     {
1155         .name       = "dump-skeys",
1156         .args_type  = "filename:F",
1157         .params     = "",
1158         .help       = "Save guest storage keys into file 'filename'.\n",
1159         .cmd        = hmp_dump_skeys,
1160     },
1161 #endif
1162
1163 SRST
1164 ``dump-skeys`` *filename*
1165   Save guest storage keys to a file.
1166 ERST
1167
1168 #if defined(TARGET_S390X)
1169     {
1170         .name       = "migration_mode",
1171         .args_type  = "mode:i",
1172         .params     = "mode",
1173         .help       = "Enables or disables migration mode\n",
1174         .cmd        = hmp_migrationmode,
1175     },
1176 #endif
1177
1178 SRST
1179 ``migration_mode`` *mode*
1180   Enables or disables migration mode.
1181 ERST
1182
1183     {
1184         .name       = "snapshot_blkdev",
1185         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1186         .params     = "[-n] device [new-image-file] [format]",
1187         .help       = "initiates a live snapshot\n\t\t\t"
1188                       "of device. If a new image file is specified, the\n\t\t\t"
1189                       "new image file will become the new root image.\n\t\t\t"
1190                       "If format is specified, the snapshot file will\n\t\t\t"
1191                       "be created in that format.\n\t\t\t"
1192                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1193                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
1194                       "recreating it from scratch.",
1195         .cmd        = hmp_snapshot_blkdev,
1196     },
1197
1198 SRST
1199 ``snapshot_blkdev``
1200   Snapshot device, using snapshot file as target if provided
1201 ERST
1202
1203     {
1204         .name       = "snapshot_blkdev_internal",
1205         .args_type  = "device:B,name:s",
1206         .params     = "device name",
1207         .help       = "take an internal snapshot of device.\n\t\t\t"
1208                       "The format of the image used by device must\n\t\t\t"
1209                       "support it, such as qcow2.\n\t\t\t",
1210         .cmd        = hmp_snapshot_blkdev_internal,
1211     },
1212
1213 SRST
1214 ``snapshot_blkdev_internal``
1215   Take an internal snapshot on device if it support
1216 ERST
1217
1218     {
1219         .name       = "snapshot_delete_blkdev_internal",
1220         .args_type  = "device:B,name:s,id:s?",
1221         .params     = "device name [id]",
1222         .help       = "delete an internal snapshot of device.\n\t\t\t"
1223                       "If id is specified, qemu will try delete\n\t\t\t"
1224                       "the snapshot matching both id and name.\n\t\t\t"
1225                       "The format of the image used by device must\n\t\t\t"
1226                       "support it, such as qcow2.\n\t\t\t",
1227         .cmd        = hmp_snapshot_delete_blkdev_internal,
1228     },
1229
1230 SRST
1231 ``snapshot_delete_blkdev_internal``
1232   Delete an internal snapshot on device if it support
1233 ERST
1234
1235     {
1236         .name       = "drive_mirror",
1237         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1238         .params     = "[-n] [-f] device target [format]",
1239         .help       = "initiates live storage\n\t\t\t"
1240                       "migration for a device. The device's contents are\n\t\t\t"
1241                       "copied to the new image file, including data that\n\t\t\t"
1242                       "is written after the command is started.\n\t\t\t"
1243                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1244                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1245                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1246                       "so that the result does not need a backing file.\n\t\t\t",
1247         .cmd        = hmp_drive_mirror,
1248     },
1249 SRST
1250 ``drive_mirror``
1251   Start mirroring a block device's writes to a new destination,
1252   using the specified target.
1253 ERST
1254
1255     {
1256         .name       = "drive_backup",
1257         .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1258         .params     = "[-n] [-f] [-c] device target [format]",
1259         .help       = "initiates a point-in-time\n\t\t\t"
1260                       "copy for a device. The device's contents are\n\t\t\t"
1261                       "copied to the new image file, excluding data that\n\t\t\t"
1262                       "is written after the command is started.\n\t\t\t"
1263                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1264                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1265                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1266                       "so that the result does not need a backing file.\n\t\t\t"
1267                       "The -c flag requests QEMU to compress backup data\n\t\t\t"
1268                       "(if the target format supports it).\n\t\t\t",
1269         .cmd        = hmp_drive_backup,
1270     },
1271 SRST
1272 ``drive_backup``
1273   Start a point-in-time copy of a block device to a specified target.
1274 ERST
1275
1276     {
1277         .name       = "drive_add",
1278         .args_type  = "node:-n,pci_addr:s,opts:s",
1279         .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1280                       "[file=file][,if=type][,bus=n]\n"
1281                       "[,unit=m][,media=d][,index=i]\n"
1282                       "[,snapshot=on|off][,cache=on|off]\n"
1283                       "[,readonly=on|off][,copy-on-read=on|off]",
1284         .help       = "add drive to PCI storage controller",
1285         .cmd        = hmp_drive_add,
1286     },
1287
1288 SRST
1289 ``drive_add``
1290   Add drive to PCI storage controller.
1291 ERST
1292
1293     {
1294         .name       = "pcie_aer_inject_error",
1295         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1296                       "id:s,error_status:s,"
1297                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1298                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1299         .params     = "[-a] [-c] id "
1300                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1301         .help       = "inject pcie aer error\n\t\t\t"
1302                       " -a for advisory non fatal error\n\t\t\t"
1303                       " -c for correctable error\n\t\t\t"
1304                       "<id> = qdev device id\n\t\t\t"
1305                       "<error_status> = error string or 32bit\n\t\t\t"
1306                       "<tlp header> = 32bit x 4\n\t\t\t"
1307                       "<tlp header prefix> = 32bit x 4",
1308         .cmd        = hmp_pcie_aer_inject_error,
1309     },
1310
1311 SRST
1312 ``pcie_aer_inject_error``
1313   Inject PCIe AER error
1314 ERST
1315
1316     {
1317         .name       = "netdev_add",
1318         .args_type  = "netdev:O",
1319         .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1320         .help       = "add host network device",
1321         .cmd        = hmp_netdev_add,
1322         .command_completion = netdev_add_completion,
1323     },
1324
1325 SRST
1326 ``netdev_add``
1327   Add host network device.
1328 ERST
1329
1330     {
1331         .name       = "netdev_del",
1332         .args_type  = "id:s",
1333         .params     = "id",
1334         .help       = "remove host network device",
1335         .cmd        = hmp_netdev_del,
1336         .command_completion = netdev_del_completion,
1337     },
1338
1339 SRST
1340 ``netdev_del``
1341   Remove host network device.
1342 ERST
1343
1344     {
1345         .name       = "object_add",
1346         .args_type  = "object:O",
1347         .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1348         .help       = "create QOM object",
1349         .cmd        = hmp_object_add,
1350         .command_completion = object_add_completion,
1351     },
1352
1353 SRST
1354 ``object_add``
1355   Create QOM object.
1356 ERST
1357
1358     {
1359         .name       = "object_del",
1360         .args_type  = "id:s",
1361         .params     = "id",
1362         .help       = "destroy QOM object",
1363         .cmd        = hmp_object_del,
1364         .command_completion = object_del_completion,
1365     },
1366
1367 SRST
1368 ``object_del``
1369   Destroy QOM object.
1370 ERST
1371
1372 #ifdef CONFIG_SLIRP
1373     {
1374         .name       = "hostfwd_add",
1375         .args_type  = "arg1:s,arg2:s?",
1376         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1377         .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1378         .cmd        = hmp_hostfwd_add,
1379     },
1380 #endif
1381 SRST
1382 ``hostfwd_add``
1383   Redirect TCP or UDP connections from host to guest (requires -net user).
1384 ERST
1385
1386 #ifdef CONFIG_SLIRP
1387     {
1388         .name       = "hostfwd_remove",
1389         .args_type  = "arg1:s,arg2:s?",
1390         .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1391         .help       = "remove host-to-guest TCP or UDP redirection",
1392         .cmd        = hmp_hostfwd_remove,
1393     },
1394
1395 #endif
1396 SRST
1397 ``hostfwd_remove``
1398   Remove host-to-guest TCP or UDP redirection.
1399 ERST
1400
1401     {
1402         .name       = "balloon",
1403         .args_type  = "value:M",
1404         .params     = "target",
1405         .help       = "request VM to change its memory allocation (in MB)",
1406         .cmd        = hmp_balloon,
1407     },
1408
1409 SRST
1410 ``balloon`` *value*
1411   Request VM to change its memory allocation to *value* (in MB).
1412 ERST
1413
1414     {
1415         .name       = "set_link",
1416         .args_type  = "name:s,up:b",
1417         .params     = "name on|off",
1418         .help       = "change the link status of a network adapter",
1419         .cmd        = hmp_set_link,
1420         .command_completion = set_link_completion,
1421     },
1422
1423 SRST
1424 ``set_link`` *name* ``[on|off]``
1425   Switch link *name* on (i.e. up) or off (i.e. down).
1426 ERST
1427
1428     {
1429         .name       = "watchdog_action",
1430         .args_type  = "action:s",
1431         .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1432         .help       = "change watchdog action",
1433         .cmd        = hmp_watchdog_action,
1434         .command_completion = watchdog_action_completion,
1435     },
1436
1437 SRST
1438 ``watchdog_action``
1439   Change watchdog action.
1440 ERST
1441
1442     {
1443         .name       = "acl_show",
1444         .args_type  = "aclname:s",
1445         .params     = "aclname",
1446         .help       = "list rules in the access control list",
1447         .cmd        = hmp_acl_show,
1448     },
1449
1450 SRST
1451 ``acl_show`` *aclname*
1452   List all the matching rules in the access control list, and the default
1453   policy. There are currently two named access control lists,
1454   *vnc.x509dname* and *vnc.username* matching on the x509 client
1455   certificate distinguished name, and SASL username respectively.
1456 ERST
1457
1458     {
1459         .name       = "acl_policy",
1460         .args_type  = "aclname:s,policy:s",
1461         .params     = "aclname allow|deny",
1462         .help       = "set default access control list policy",
1463         .cmd        = hmp_acl_policy,
1464     },
1465
1466 SRST
1467 ``acl_policy`` *aclname* ``allow|deny``
1468   Set the default access control list policy, used in the event that
1469   none of the explicit rules match. The default policy at startup is
1470   always ``deny``.
1471 ERST
1472
1473     {
1474         .name       = "acl_add",
1475         .args_type  = "aclname:s,match:s,policy:s,index:i?",
1476         .params     = "aclname match allow|deny [index]",
1477         .help       = "add a match rule to the access control list",
1478         .cmd        = hmp_acl_add,
1479     },
1480
1481 SRST
1482 ``acl_add`` *aclname* *match* ``allow|deny`` [*index*]
1483   Add a match rule to the access control list, allowing or denying access.
1484   The match will normally be an exact username or x509 distinguished name,
1485   but can optionally include wildcard globs. eg ``*@EXAMPLE.COM`` to
1486   allow all users in the ``EXAMPLE.COM`` kerberos realm. The match will
1487   normally be appended to the end of the ACL, but can be inserted
1488   earlier in the list if the optional *index* parameter is supplied.
1489 ERST
1490
1491     {
1492         .name       = "acl_remove",
1493         .args_type  = "aclname:s,match:s",
1494         .params     = "aclname match",
1495         .help       = "remove a match rule from the access control list",
1496         .cmd        = hmp_acl_remove,
1497     },
1498
1499 SRST
1500 ``acl_remove`` *aclname* *match*
1501   Remove the specified match rule from the access control list.
1502 ERST
1503
1504     {
1505         .name       = "acl_reset",
1506         .args_type  = "aclname:s",
1507         .params     = "aclname",
1508         .help       = "reset the access control list",
1509         .cmd        = hmp_acl_reset,
1510     },
1511
1512 SRST
1513 ``acl_reset`` *aclname*
1514   Remove all matches from the access control list, and set the default
1515   policy back to ``deny``.
1516 ERST
1517
1518     {
1519         .name       = "nbd_server_start",
1520         .args_type  = "all:-a,writable:-w,uri:s",
1521         .params     = "nbd_server_start [-a] [-w] host:port",
1522         .help       = "serve block devices on the given host and port",
1523         .cmd        = hmp_nbd_server_start,
1524     },
1525 SRST
1526 ``nbd_server_start`` *host*:*port*
1527   Start an NBD server on the given host and/or port.  If the ``-a``
1528   option is included, all of the virtual machine's block devices that
1529   have an inserted media on them are automatically exported; in this case,
1530   the ``-w`` option makes the devices writable too.
1531 ERST
1532
1533     {
1534         .name       = "nbd_server_add",
1535         .args_type  = "writable:-w,device:B,name:s?",
1536         .params     = "nbd_server_add [-w] device [name]",
1537         .help       = "export a block device via NBD",
1538         .cmd        = hmp_nbd_server_add,
1539     },
1540 SRST
1541 ``nbd_server_add`` *device* [ *name* ]
1542   Export a block device through QEMU's NBD server, which must be started
1543   beforehand with ``nbd_server_start``.  The ``-w`` option makes the
1544   exported device writable too.  The export name is controlled by *name*,
1545   defaulting to *device*.
1546 ERST
1547
1548     {
1549         .name       = "nbd_server_remove",
1550         .args_type  = "force:-f,name:s",
1551         .params     = "nbd_server_remove [-f] name",
1552         .help       = "remove an export previously exposed via NBD",
1553         .cmd        = hmp_nbd_server_remove,
1554     },
1555 SRST
1556 ``nbd_server_remove [-f]`` *name*
1557   Stop exporting a block device through QEMU's NBD server, which was
1558   previously started with ``nbd_server_add``.  The ``-f``
1559   option forces the server to drop the export immediately even if
1560   clients are connected; otherwise the command fails unless there are no
1561   clients.
1562 ERST
1563
1564     {
1565         .name       = "nbd_server_stop",
1566         .args_type  = "",
1567         .params     = "nbd_server_stop",
1568         .help       = "stop serving block devices using the NBD protocol",
1569         .cmd        = hmp_nbd_server_stop,
1570     },
1571 SRST
1572 ``nbd_server_stop``
1573   Stop the QEMU embedded NBD server.
1574 ERST
1575
1576
1577 #if defined(TARGET_I386)
1578
1579     {
1580         .name       = "mce",
1581         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1582         .params     = "[-b] cpu bank status mcgstatus addr misc",
1583         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1584         .cmd        = hmp_mce,
1585     },
1586
1587 #endif
1588 SRST
1589 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1590   Inject an MCE on the given CPU (x86 only).
1591 ERST
1592
1593     {
1594         .name       = "getfd",
1595         .args_type  = "fdname:s",
1596         .params     = "getfd name",
1597         .help       = "receive a file descriptor via SCM rights and assign it a name",
1598         .cmd        = hmp_getfd,
1599     },
1600
1601 SRST
1602 ``getfd`` *fdname*
1603   If a file descriptor is passed alongside this command using the SCM_RIGHTS
1604   mechanism on unix sockets, it is stored using the name *fdname* for
1605   later use by other monitor commands.
1606 ERST
1607
1608     {
1609         .name       = "closefd",
1610         .args_type  = "fdname:s",
1611         .params     = "closefd name",
1612         .help       = "close a file descriptor previously passed via SCM rights",
1613         .cmd        = hmp_closefd,
1614     },
1615
1616 SRST
1617 ``closefd`` *fdname*
1618   Close the file descriptor previously assigned to *fdname* using the
1619   ``getfd`` command. This is only needed if the file descriptor was never
1620   used by another monitor command.
1621 ERST
1622
1623     {
1624         .name       = "block_passwd",
1625         .args_type  = "device:B,password:s",
1626         .params     = "block_passwd device password",
1627         .help       = "set the password of encrypted block devices",
1628         .cmd        = hmp_block_passwd,
1629     },
1630
1631 SRST
1632 ``block_passwd`` *device* *password*
1633   Set the encrypted device *device* password to *password*
1634
1635   This command is now obsolete and will always return an error since 2.10
1636 ERST
1637
1638     {
1639         .name       = "block_set_io_throttle",
1640         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1641         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1642         .help       = "change I/O throttle limits for a block drive",
1643         .cmd        = hmp_block_set_io_throttle,
1644     },
1645
1646 SRST
1647 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1648   Change I/O throttle limits for a block drive to
1649   *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1650   *device* can be a block device name, a qdev ID or a QOM path.
1651 ERST
1652
1653     {
1654         .name       = "set_password",
1655         .args_type  = "protocol:s,password:s,connected:s?",
1656         .params     = "protocol password action-if-connected",
1657         .help       = "set spice/vnc password",
1658         .cmd        = hmp_set_password,
1659     },
1660
1661 SRST
1662 ``set_password [ vnc | spice ] password [ action-if-connected ]``
1663   Change spice/vnc password.  Use zero to make the password stay valid
1664   forever.  *action-if-connected* specifies what should happen in
1665   case a connection is established: *fail* makes the password change
1666   fail.  *disconnect* changes the password and disconnects the
1667   client.  *keep* changes the password and keeps the connection up.
1668   *keep* is the default.
1669 ERST
1670
1671     {
1672         .name       = "expire_password",
1673         .args_type  = "protocol:s,time:s",
1674         .params     = "protocol time",
1675         .help       = "set spice/vnc password expire-time",
1676         .cmd        = hmp_expire_password,
1677     },
1678
1679 SRST
1680 ``expire_password [ vnc | spice ]`` *expire-time*
1681   Specify when a password for spice/vnc becomes
1682   invalid. *expire-time* accepts:
1683
1684   ``now``
1685     Invalidate password instantly.
1686   ``never``
1687     Password stays valid forever.
1688   ``+``\ *nsec*
1689     Password stays valid for *nsec* seconds starting now.
1690   *nsec*
1691     Password is invalidated at the given time.  *nsec* are the seconds
1692     passed since 1970, i.e. unix epoch.
1693
1694 ERST
1695
1696     {
1697         .name       = "chardev-add",
1698         .args_type  = "args:s",
1699         .params     = "args",
1700         .help       = "add chardev",
1701         .cmd        = hmp_chardev_add,
1702         .command_completion = chardev_add_completion,
1703     },
1704
1705 SRST
1706 ``chardev-add`` *args*
1707   chardev-add accepts the same parameters as the -chardev command line switch.
1708 ERST
1709
1710     {
1711         .name       = "chardev-change",
1712         .args_type  = "id:s,args:s",
1713         .params     = "id args",
1714         .help       = "change chardev",
1715         .cmd        = hmp_chardev_change,
1716     },
1717
1718 SRST
1719 ``chardev-change`` *args*
1720   chardev-change accepts existing chardev *id* and then the same arguments
1721   as the -chardev command line switch (except for "id").
1722 ERST
1723
1724     {
1725         .name       = "chardev-remove",
1726         .args_type  = "id:s",
1727         .params     = "id",
1728         .help       = "remove chardev",
1729         .cmd        = hmp_chardev_remove,
1730         .command_completion = chardev_remove_completion,
1731     },
1732
1733 SRST
1734 ``chardev-remove`` *id*
1735   Removes the chardev *id*.
1736 ERST
1737
1738     {
1739         .name       = "chardev-send-break",
1740         .args_type  = "id:s",
1741         .params     = "id",
1742         .help       = "send a break on chardev",
1743         .cmd        = hmp_chardev_send_break,
1744         .command_completion = chardev_remove_completion,
1745     },
1746
1747 SRST
1748 ``chardev-send-break`` *id*
1749   Send a break on the chardev *id*.
1750 ERST
1751
1752     {
1753         .name       = "qemu-io",
1754         .args_type  = "qdev:-d,device:B,command:s",
1755         .params     = "[-d] [device] \"[command]\"",
1756         .help       = "run a qemu-io command on a block device\n\t\t\t"
1757                       "-d: [device] is a device ID rather than a "
1758                       "drive ID or node name",
1759         .cmd        = hmp_qemu_io,
1760     },
1761
1762 SRST
1763 ``qemu-io`` *device* *command*
1764   Executes a qemu-io command on the given block device.
1765 ERST
1766
1767     {
1768         .name       = "qom-list",
1769         .args_type  = "path:s?",
1770         .params     = "path",
1771         .help       = "list QOM properties",
1772         .cmd        = hmp_qom_list,
1773         .flags      = "p",
1774     },
1775
1776 SRST
1777 ``qom-list`` [*path*]
1778   Print QOM properties of object at location *path*
1779 ERST
1780
1781     {
1782         .name       = "qom-get",
1783         .args_type  = "path:s,property:s",
1784         .params     = "path property",
1785         .help       = "print QOM property",
1786         .cmd        = hmp_qom_get,
1787         .flags      = "p",
1788     },
1789
1790 SRST
1791 ``qom-get`` *path* *property*
1792   Print QOM property *property* of object at location *path*
1793 ERST
1794
1795     {
1796         .name       = "qom-set",
1797         .args_type  = "json:-j,path:s,property:s,value:S",
1798         .params     = "[-j] path property value",
1799         .help       = "set QOM property.\n\t\t\t"
1800                       "-j: the value is specified in json format.",
1801         .cmd        = hmp_qom_set,
1802         .flags      = "p",
1803     },
1804
1805 SRST
1806 ``qom-set`` *path* *property* *value*
1807   Set QOM property *property* of object at location *path* to value *value*
1808 ERST
1809
1810     {
1811         .name       = "replay_break",
1812         .args_type  = "icount:i",
1813         .params     = "icount",
1814         .help       = "set breakpoint at the specified instruction count",
1815         .cmd        = hmp_replay_break,
1816     },
1817
1818 SRST
1819 ``replay_break`` *icount*
1820   Set replay breakpoint at instruction count *icount*.
1821   Execution stops when the specified instruction is reached.
1822   There can be at most one breakpoint. When breakpoint is set, any prior
1823   one is removed.  The breakpoint may be set only in replay mode and only
1824   "in the future", i.e. at instruction counts greater than the current one.
1825   The current instruction count can be observed with ``info replay``.
1826 ERST
1827
1828     {
1829         .name       = "replay_delete_break",
1830         .args_type  = "",
1831         .params     = "",
1832         .help       = "remove replay breakpoint",
1833         .cmd        = hmp_replay_delete_break,
1834     },
1835
1836 SRST
1837 ``replay_delete_break``
1838   Remove replay breakpoint which was previously set with ``replay_break``.
1839   The command is ignored when there are no replay breakpoints.
1840 ERST
1841
1842     {
1843         .name       = "replay_seek",
1844         .args_type  = "icount:i",
1845         .params     = "icount",
1846         .help       = "replay execution to the specified instruction count",
1847         .cmd        = hmp_replay_seek,
1848     },
1849
1850 SRST
1851 ``replay_seek`` *icount*
1852   Automatically proceed to the instruction count *icount*, when
1853   replaying the execution. The command automatically loads nearest
1854   snapshot and replays the execution to find the desired instruction.
1855   When there is no preceding snapshot or the execution is not replayed,
1856   then the command fails.
1857   *icount* for the reference may be observed with ``info replay`` command.
1858 ERST
1859
1860     {
1861         .name       = "info",
1862         .args_type  = "item:s?",
1863         .params     = "[subcommand]",
1864         .help       = "show various information about the system state",
1865         .cmd        = hmp_info_help,
1866         .sub_table  = hmp_info_cmds,
1867         .flags      = "p",
1868     },
1869