qemu/hmp-commands.hx
<<
>>
Prefs
   1HXCOMM Use DEFHEADING() to define headings in both help text and texi
   2HXCOMM Text between STEXI and ETEXI are copied to texi version and
   3HXCOMM discarded from C version
   4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
   5HXCOMM monitor commands
   6HXCOMM HXCOMM can be used for comments, discarded from both texi and C
   7
   8STEXI
   9@table @option
  10ETEXI
  11
  12    {
  13        .name       = "help|?",
  14        .args_type  = "name:S?",
  15        .params     = "[cmd]",
  16        .help       = "show the help",
  17        .cmd        = do_help_cmd,
  18        .flags      = "p",
  19    },
  20
  21STEXI
  22@item help or ? [@var{cmd}]
  23@findex help
  24Show the help for all commands or just for command @var{cmd}.
  25ETEXI
  26
  27    {
  28        .name       = "commit",
  29        .args_type  = "device:B",
  30        .params     = "device|all",
  31        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
  32        .cmd        = hmp_commit,
  33    },
  34
  35STEXI
  36@item commit
  37@findex commit
  38Commit changes to the disk images (if -snapshot is used) or backing files.
  39If the backing file is smaller than the snapshot, then the backing file will be
  40resized to be the same size as the snapshot.  If the snapshot is smaller than
  41the backing file, the backing file will not be truncated.  If you want the
  42backing file to match the size of the smaller snapshot, you can safely truncate
  43it yourself once the commit operation successfully completes.
  44ETEXI
  45
  46    {
  47        .name       = "q|quit",
  48        .args_type  = "",
  49        .params     = "",
  50        .help       = "quit the emulator",
  51        .cmd        = hmp_quit,
  52    },
  53
  54STEXI
  55@item q or quit
  56@findex quit
  57Quit the emulator.
  58ETEXI
  59
  60    {
  61        .name       = "exit_preconfig",
  62        .args_type  = "",
  63        .params     = "",
  64        .help       = "exit the preconfig state",
  65        .cmd        = hmp_exit_preconfig,
  66        .flags      = "p",
  67    },
  68
  69STEXI
  70@item exit_preconfig
  71@findex exit_preconfig
  72This command makes QEMU exit the preconfig state and proceed with
  73VM initialization using configuration data provided on the command line
  74and via the QMP monitor during the preconfig state. The command is only
  75available during the preconfig state (i.e. when the --preconfig command
  76line option was in use).
  77ETEXI
  78
  79    {
  80        .name       = "block_resize",
  81        .args_type  = "device:B,size:o",
  82        .params     = "device size",
  83        .help       = "resize a block image",
  84        .cmd        = hmp_block_resize,
  85    },
  86
  87STEXI
  88@item block_resize
  89@findex block_resize
  90Resize a block image while a guest is running.  Usually requires guest
  91action to see the updated size.  Resize to a lower size is supported,
  92but should be used with extreme caution.  Note that this command only
  93resizes image files, it can not resize block devices like LVM volumes.
  94ETEXI
  95
  96    {
  97        .name       = "block_stream",
  98        .args_type  = "device:B,speed:o?,base:s?",
  99        .params     = "device [speed [base]]",
 100        .help       = "copy data from a backing file into a block device",
 101        .cmd        = hmp_block_stream,
 102    },
 103
 104STEXI
 105@item block_stream
 106@findex block_stream
 107Copy data from a backing file into a block device.
 108ETEXI
 109
 110    {
 111        .name       = "block_job_set_speed",
 112        .args_type  = "device:B,speed:o",
 113        .params     = "device speed",
 114        .help       = "set maximum speed for a background block operation",
 115        .cmd        = hmp_block_job_set_speed,
 116    },
 117
 118STEXI
 119@item block_job_set_speed
 120@findex block_job_set_speed
 121Set maximum speed for a background block operation.
 122ETEXI
 123
 124    {
 125        .name       = "block_job_cancel",
 126        .args_type  = "force:-f,device:B",
 127        .params     = "[-f] device",
 128        .help       = "stop an active background block operation (use -f"
 129                      "\n\t\t\t if you want to abort the operation immediately"
 130                      "\n\t\t\t instead of keep running until data is in sync)",
 131        .cmd        = hmp_block_job_cancel,
 132    },
 133
 134STEXI
 135@item block_job_cancel
 136@findex block_job_cancel
 137Stop an active background block operation (streaming, mirroring).
 138ETEXI
 139
 140    {
 141        .name       = "block_job_complete",
 142        .args_type  = "device:B",
 143        .params     = "device",
 144        .help       = "stop an active background block operation",
 145        .cmd        = hmp_block_job_complete,
 146    },
 147
 148STEXI
 149@item block_job_complete
 150@findex block_job_complete
 151Manually trigger completion of an active background block operation.
 152For mirroring, this will switch the device to the destination path.
 153ETEXI
 154
 155    {
 156        .name       = "block_job_pause",
 157        .args_type  = "device:B",
 158        .params     = "device",
 159        .help       = "pause an active background block operation",
 160        .cmd        = hmp_block_job_pause,
 161    },
 162
 163STEXI
 164@item block_job_pause
 165@findex block_job_pause
 166Pause an active block streaming operation.
 167ETEXI
 168
 169    {
 170        .name       = "block_job_resume",
 171        .args_type  = "device:B",
 172        .params     = "device",
 173        .help       = "resume a paused background block operation",
 174        .cmd        = hmp_block_job_resume,
 175    },
 176
 177STEXI
 178@item block_job_resume
 179@findex block_job_resume
 180Resume a paused block streaming operation.
 181ETEXI
 182
 183    {
 184        .name       = "eject",
 185        .args_type  = "force:-f,device:B",
 186        .params     = "[-f] device",
 187        .help       = "eject a removable medium (use -f to force it)",
 188        .cmd        = hmp_eject,
 189    },
 190
 191STEXI
 192@item eject [-f] @var{device}
 193@findex eject
 194Eject a removable medium (use -f to force it).
 195ETEXI
 196
 197    {
 198        .name       = "drive_del",
 199        .args_type  = "id:B",
 200        .params     = "device",
 201        .help       = "remove host block device",
 202        .cmd        = hmp_drive_del,
 203    },
 204
 205STEXI
 206@item drive_del @var{device}
 207@findex drive_del
 208Remove host block device.  The result is that guest generated IO is no longer
 209submitted against the host device underlying the disk.  Once a drive has
 210been deleted, the QEMU Block layer returns -EIO which results in IO
 211errors in the guest for applications that are reading/writing to the device.
 212These errors are always reported to the guest, regardless of the drive's error
 213actions (drive options rerror, werror).
 214ETEXI
 215
 216    {
 217        .name       = "change",
 218        .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
 219        .params     = "device filename [format [read-only-mode]]",
 220        .help       = "change a removable medium, optional format",
 221        .cmd        = hmp_change,
 222    },
 223
 224STEXI
 225@item change @var{device} @var{setting}
 226@findex change
 227Change the configuration of a device.
 228
 229@table @option
 230@item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
 231Change the medium for a removable disk device to point to @var{filename}. eg
 232
 233@example
 234(qemu) change ide1-cd0 /path/to/some.iso
 235@end example
 236
 237@var{format} is optional.
 238
 239@var{read-only-mode} may be used to change the read-only status of the device.
 240It accepts the following values:
 241
 242@table @var
 243@item retain
 244Retains the current status; this is the default.
 245
 246@item read-only
 247Makes the device read-only.
 248
 249@item read-write
 250Makes the device writable.
 251@end table
 252
 253@item change vnc @var{display},@var{options}
 254Change the configuration of the VNC server. The valid syntax for @var{display}
 255and @var{options} are described at @ref{sec_invocation}. eg
 256
 257@example
 258(qemu) change vnc localhost:1
 259@end example
 260
 261@item change vnc password [@var{password}]
 262
 263Change the password associated with the VNC server. If the new password is not
 264supplied, the monitor will prompt for it to be entered. VNC passwords are only
 265significant up to 8 letters. eg
 266
 267@example
 268(qemu) change vnc password
 269Password: ********
 270@end example
 271
 272@end table
 273ETEXI
 274
 275    {
 276        .name       = "screendump",
 277        .args_type  = "filename:F,device:s?,head:i?",
 278        .params     = "filename [device [head]]",
 279        .help       = "save screen from head 'head' of display device 'device' "
 280                      "into PPM image 'filename'",
 281        .cmd        = hmp_screendump,
 282    },
 283
 284STEXI
 285@item screendump @var{filename}
 286@findex screendump
 287Save screen into PPM image @var{filename}.
 288ETEXI
 289
 290    {
 291        .name       = "logfile",
 292        .args_type  = "filename:F",
 293        .params     = "filename",
 294        .help       = "output logs to 'filename'",
 295        .cmd        = hmp_logfile,
 296    },
 297
 298STEXI
 299@item logfile @var{filename}
 300@findex logfile
 301Output logs to @var{filename}.
 302ETEXI
 303
 304    {
 305        .name       = "trace-event",
 306        .args_type  = "name:s,option:b,vcpu:i?",
 307        .params     = "name on|off [vcpu]",
 308        .help       = "changes status of a specific trace event "
 309                      "(vcpu: vCPU to set, default is all)",
 310        .cmd = hmp_trace_event,
 311        .command_completion = trace_event_completion,
 312    },
 313
 314STEXI
 315@item trace-event
 316@findex trace-event
 317changes status of a trace event
 318ETEXI
 319
 320#if defined(CONFIG_TRACE_SIMPLE)
 321    {
 322        .name       = "trace-file",
 323        .args_type  = "op:s?,arg:F?",
 324        .params     = "on|off|flush|set [arg]",
 325        .help       = "open, close, or flush trace file, or set a new file name",
 326        .cmd        = hmp_trace_file,
 327    },
 328
 329STEXI
 330@item trace-file on|off|flush
 331@findex trace-file
 332Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
 333ETEXI
 334#endif
 335
 336    {
 337        .name       = "log",
 338        .args_type  = "items:s",
 339        .params     = "item1[,...]",
 340        .help       = "activate logging of the specified items",
 341        .cmd        = hmp_log,
 342    },
 343
 344STEXI
 345@item log @var{item1}[,...]
 346@findex log
 347Activate logging of the specified items.
 348ETEXI
 349
 350    {
 351        .name       = "savevm",
 352        .args_type  = "name:s?",
 353        .params     = "tag",
 354        .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
 355        .cmd        = hmp_savevm,
 356    },
 357
 358STEXI
 359@item savevm @var{tag}
 360@findex savevm
 361Create a snapshot of the whole virtual machine. If @var{tag} is
 362provided, it is used as human readable identifier. If there is already
 363a snapshot with the same tag, it is replaced. More info at
 364@ref{vm_snapshots}.
 365
 366Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
 367only @var{tag} as parameter.
 368ETEXI
 369
 370    {
 371        .name       = "loadvm",
 372        .args_type  = "name:s",
 373        .params     = "tag",
 374        .help       = "restore a VM snapshot from its tag",
 375        .cmd        = hmp_loadvm,
 376        .command_completion = loadvm_completion,
 377    },
 378
 379STEXI
 380@item loadvm @var{tag}
 381@findex loadvm
 382Set the whole virtual machine to the snapshot identified by the tag
 383@var{tag}.
 384
 385Since 4.0, loadvm stopped accepting snapshot id as parameter.
 386ETEXI
 387
 388    {
 389        .name       = "delvm",
 390        .args_type  = "name:s",
 391        .params     = "tag",
 392        .help       = "delete a VM snapshot from its tag",
 393        .cmd        = hmp_delvm,
 394        .command_completion = delvm_completion,
 395    },
 396
 397STEXI
 398@item delvm @var{tag}
 399@findex delvm
 400Delete the snapshot identified by @var{tag}.
 401
 402Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
 403only @var{tag} as parameter.
 404ETEXI
 405
 406    {
 407        .name       = "singlestep",
 408        .args_type  = "option:s?",
 409        .params     = "[on|off]",
 410        .help       = "run emulation in singlestep mode or switch to normal mode",
 411        .cmd        = hmp_singlestep,
 412    },
 413
 414STEXI
 415@item singlestep [off]
 416@findex singlestep
 417Run the emulation in single step mode.
 418If called with option off, the emulation returns to normal mode.
 419ETEXI
 420
 421    {
 422        .name       = "stop",
 423        .args_type  = "",
 424        .params     = "",
 425        .help       = "stop emulation",
 426        .cmd        = hmp_stop,
 427    },
 428
 429STEXI
 430@item stop
 431@findex stop
 432Stop emulation.
 433ETEXI
 434
 435    {
 436        .name       = "c|cont",
 437        .args_type  = "",
 438        .params     = "",
 439        .help       = "resume emulation",
 440        .cmd        = hmp_cont,
 441    },
 442
 443STEXI
 444@item c or cont
 445@findex cont
 446Resume emulation.
 447ETEXI
 448
 449    {
 450        .name       = "system_wakeup",
 451        .args_type  = "",
 452        .params     = "",
 453        .help       = "wakeup guest from suspend",
 454        .cmd        = hmp_system_wakeup,
 455    },
 456
 457STEXI
 458@item system_wakeup
 459@findex system_wakeup
 460Wakeup guest from suspend.
 461ETEXI
 462
 463    {
 464        .name       = "gdbserver",
 465        .args_type  = "device:s?",
 466        .params     = "[device]",
 467        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
 468        .cmd        = hmp_gdbserver,
 469    },
 470
 471STEXI
 472@item gdbserver [@var{port}]
 473@findex gdbserver
 474Start gdbserver session (default @var{port}=1234)
 475ETEXI
 476
 477    {
 478        .name       = "x",
 479        .args_type  = "fmt:/,addr:l",
 480        .params     = "/fmt addr",
 481        .help       = "virtual memory dump starting at 'addr'",
 482        .cmd        = hmp_memory_dump,
 483    },
 484
 485STEXI
 486@item x/fmt @var{addr}
 487@findex x
 488Virtual memory dump starting at @var{addr}.
 489ETEXI
 490
 491    {
 492        .name       = "xp",
 493        .args_type  = "fmt:/,addr:l",
 494        .params     = "/fmt addr",
 495        .help       = "physical memory dump starting at 'addr'",
 496        .cmd        = hmp_physical_memory_dump,
 497    },
 498
 499STEXI
 500@item xp /@var{fmt} @var{addr}
 501@findex xp
 502Physical memory dump starting at @var{addr}.
 503
 504@var{fmt} is a format which tells the command how to format the
 505data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
 506
 507@table @var
 508@item count
 509is the number of items to be dumped.
 510
 511@item format
 512can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
 513c (char) or i (asm instruction).
 514
 515@item size
 516can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
 517@code{h} or @code{w} can be specified with the @code{i} format to
 518respectively select 16 or 32 bit code instruction size.
 519
 520@end table
 521
 522Examples:
 523@itemize
 524@item
 525Dump 10 instructions at the current instruction pointer:
 526@example
 527(qemu) x/10i $eip
 5280x90107063:  ret
 5290x90107064:  sti
 5300x90107065:  lea    0x0(%esi,1),%esi
 5310x90107069:  lea    0x0(%edi,1),%edi
 5320x90107070:  ret
 5330x90107071:  jmp    0x90107080
 5340x90107073:  nop
 5350x90107074:  nop
 5360x90107075:  nop
 5370x90107076:  nop
 538@end example
 539
 540@item
 541Dump 80 16 bit values at the start of the video memory.
 542@smallexample
 543(qemu) xp/80hx 0xb8000
 5440x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
 5450x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
 5460x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
 5470x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
 5480x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
 5490x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
 5500x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5510x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5520x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 5530x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
 554@end smallexample
 555@end itemize
 556ETEXI
 557
 558    {
 559        .name       = "gpa2hva",
 560        .args_type  = "addr:l",
 561        .params     = "addr",
 562        .help       = "print the host virtual address corresponding to a guest physical address",
 563        .cmd        = hmp_gpa2hva,
 564    },
 565
 566STEXI
 567@item gpa2hva @var{addr}
 568@findex gpa2hva
 569Print the host virtual address at which the guest's physical address @var{addr}
 570is mapped.
 571ETEXI
 572
 573#ifdef CONFIG_LINUX
 574    {
 575        .name       = "gpa2hpa",
 576        .args_type  = "addr:l",
 577        .params     = "addr",
 578        .help       = "print the host physical address corresponding to a guest physical address",
 579        .cmd        = hmp_gpa2hpa,
 580    },
 581#endif
 582
 583STEXI
 584@item gpa2hpa @var{addr}
 585@findex gpa2hpa
 586Print the host physical address at which the guest's physical address @var{addr}
 587is mapped.
 588ETEXI
 589
 590    {
 591        .name       = "gva2gpa",
 592        .args_type  = "addr:l",
 593        .params     = "addr",
 594        .help       = "print the guest physical address corresponding to a guest virtual address",
 595        .cmd        = hmp_gva2gpa,
 596    },
 597
 598STEXI
 599@item gva2gpa @var{addr}
 600@findex gva2gpa
 601Print the guest physical address at which the guest's virtual address @var{addr}
 602is mapped based on the mapping for the current CPU.
 603ETEXI
 604
 605    {
 606        .name       = "p|print",
 607        .args_type  = "fmt:/,val:l",
 608        .params     = "/fmt expr",
 609        .help       = "print expression value (use $reg for CPU register access)",
 610        .cmd        = do_print,
 611    },
 612
 613STEXI
 614@item p or print/@var{fmt} @var{expr}
 615@findex print
 616Print expression value. Only the @var{format} part of @var{fmt} is
 617used.
 618ETEXI
 619
 620    {
 621        .name       = "i",
 622        .args_type  = "fmt:/,addr:i,index:i.",
 623        .params     = "/fmt addr",
 624        .help       = "I/O port read",
 625        .cmd        = hmp_ioport_read,
 626    },
 627
 628STEXI
 629@item i/@var{fmt} @var{addr} [.@var{index}]
 630@findex i
 631Read I/O port.
 632ETEXI
 633
 634    {
 635        .name       = "o",
 636        .args_type  = "fmt:/,addr:i,val:i",
 637        .params     = "/fmt addr value",
 638        .help       = "I/O port write",
 639        .cmd        = hmp_ioport_write,
 640    },
 641
 642STEXI
 643@item o/@var{fmt} @var{addr} @var{val}
 644@findex o
 645Write to I/O port.
 646ETEXI
 647
 648    {
 649        .name       = "sendkey",
 650        .args_type  = "keys:s,hold-time:i?",
 651        .params     = "keys [hold_ms]",
 652        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
 653        .cmd        = hmp_sendkey,
 654        .command_completion = sendkey_completion,
 655    },
 656
 657STEXI
 658@item sendkey @var{keys}
 659@findex sendkey
 660Send @var{keys} to the guest. @var{keys} could be the name of the
 661key or the raw value in hexadecimal format. Use @code{-} to press
 662several keys simultaneously. Example:
 663@example
 664sendkey ctrl-alt-f1
 665@end example
 666
 667This command is useful to send keys that your graphical user interface
 668intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
 669ETEXI
 670    {
 671        .name       = "sync-profile",
 672        .args_type  = "op:s?",
 673        .params     = "[on|off|reset]",
 674        .help       = "enable, disable or reset synchronization profiling. "
 675                      "With no arguments, prints whether profiling is on or off.",
 676        .cmd        = hmp_sync_profile,
 677    },
 678
 679STEXI
 680@item sync-profile [on|off|reset]
 681@findex sync-profile
 682Enable, disable or reset synchronization profiling. With no arguments, prints
 683whether profiling is on or off.
 684ETEXI
 685
 686    {
 687        .name       = "system_reset",
 688        .args_type  = "",
 689        .params     = "",
 690        .help       = "reset the system",
 691        .cmd        = hmp_system_reset,
 692    },
 693
 694STEXI
 695@item system_reset
 696@findex system_reset
 697Reset the system.
 698ETEXI
 699
 700    {
 701        .name       = "system_powerdown",
 702        .args_type  = "",
 703        .params     = "",
 704        .help       = "send system power down event",
 705        .cmd        = hmp_system_powerdown,
 706    },
 707
 708STEXI
 709@item system_powerdown
 710@findex system_powerdown
 711Power down the system (if supported).
 712ETEXI
 713
 714    {
 715        .name       = "sum",
 716        .args_type  = "start:i,size:i",
 717        .params     = "addr size",
 718        .help       = "compute the checksum of a memory region",
 719        .cmd        = hmp_sum,
 720    },
 721
 722STEXI
 723@item sum @var{addr} @var{size}
 724@findex sum
 725Compute the checksum of a memory region.
 726ETEXI
 727
 728    {
 729        .name       = "device_add",
 730        .args_type  = "device:O",
 731        .params     = "driver[,prop=value][,...]",
 732        .help       = "add device, like -device on the command line",
 733        .cmd        = hmp_device_add,
 734        .command_completion = device_add_completion,
 735    },
 736
 737STEXI
 738@item device_add @var{config}
 739@findex device_add
 740Add device.
 741ETEXI
 742
 743    {
 744        .name       = "device_del",
 745        .args_type  = "id:s",
 746        .params     = "device",
 747        .help       = "remove device",
 748        .cmd        = hmp_device_del,
 749        .command_completion = device_del_completion,
 750    },
 751
 752STEXI
 753@item device_del @var{id}
 754@findex device_del
 755Remove device @var{id}. @var{id} may be a short ID
 756or a QOM object path.
 757ETEXI
 758
 759    {
 760        .name       = "cpu",
 761        .args_type  = "index:i",
 762        .params     = "index",
 763        .help       = "set the default CPU",
 764        .cmd        = hmp_cpu,
 765    },
 766
 767STEXI
 768@item cpu @var{index}
 769@findex cpu
 770Set the default CPU.
 771ETEXI
 772
 773    {
 774        .name       = "mouse_move",
 775        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
 776        .params     = "dx dy [dz]",
 777        .help       = "send mouse move events",
 778        .cmd        = hmp_mouse_move,
 779    },
 780
 781STEXI
 782@item mouse_move @var{dx} @var{dy} [@var{dz}]
 783@findex mouse_move
 784Move the active mouse to the specified coordinates @var{dx} @var{dy}
 785with optional scroll axis @var{dz}.
 786ETEXI
 787
 788    {
 789        .name       = "mouse_button",
 790        .args_type  = "button_state:i",
 791        .params     = "state",
 792        .help       = "change mouse button state (1=L, 2=M, 4=R)",
 793        .cmd        = hmp_mouse_button,
 794    },
 795
 796STEXI
 797@item mouse_button @var{val}
 798@findex mouse_button
 799Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
 800ETEXI
 801
 802    {
 803        .name       = "mouse_set",
 804        .args_type  = "index:i",
 805        .params     = "index",
 806        .help       = "set which mouse device receives events",
 807        .cmd        = hmp_mouse_set,
 808    },
 809
 810STEXI
 811@item mouse_set @var{index}
 812@findex mouse_set
 813Set which mouse device receives events at given @var{index}, index
 814can be obtained with
 815@example
 816info mice
 817@end example
 818ETEXI
 819
 820    {
 821        .name       = "wavcapture",
 822        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
 823        .params     = "path [frequency [bits [channels]]]",
 824        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
 825        .cmd        = hmp_wavcapture,
 826    },
 827STEXI
 828@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
 829@findex wavcapture
 830Capture audio into @var{filename}. Using sample rate @var{frequency}
 831bits per sample @var{bits} and number of channels @var{channels}.
 832
 833Defaults:
 834@itemize @minus
 835@item Sample rate = 44100 Hz - CD quality
 836@item Bits = 16
 837@item Number of channels = 2 - Stereo
 838@end itemize
 839ETEXI
 840
 841    {
 842        .name       = "stopcapture",
 843        .args_type  = "n:i",
 844        .params     = "capture index",
 845        .help       = "stop capture",
 846        .cmd        = hmp_stopcapture,
 847    },
 848STEXI
 849@item stopcapture @var{index}
 850@findex stopcapture
 851Stop capture with a given @var{index}, index can be obtained with
 852@example
 853info capture
 854@end example
 855ETEXI
 856
 857    {
 858        .name       = "memsave",
 859        .args_type  = "val:l,size:i,filename:s",
 860        .params     = "addr size file",
 861        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
 862        .cmd        = hmp_memsave,
 863    },
 864
 865STEXI
 866@item memsave @var{addr} @var{size} @var{file}
 867@findex memsave
 868save to disk virtual memory dump starting at @var{addr} of size @var{size}.
 869ETEXI
 870
 871    {
 872        .name       = "pmemsave",
 873        .args_type  = "val:l,size:i,filename:s",
 874        .params     = "addr size file",
 875        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
 876        .cmd        = hmp_pmemsave,
 877    },
 878
 879STEXI
 880@item pmemsave @var{addr} @var{size} @var{file}
 881@findex pmemsave
 882save to disk physical memory dump starting at @var{addr} of size @var{size}.
 883ETEXI
 884
 885    {
 886        .name       = "boot_set",
 887        .args_type  = "bootdevice:s",
 888        .params     = "bootdevice",
 889        .help       = "define new values for the boot device list",
 890        .cmd        = hmp_boot_set,
 891    },
 892
 893STEXI
 894@item boot_set @var{bootdevicelist}
 895@findex boot_set
 896Define new values for the boot device list. Those values will override
 897the values specified on the command line through the @code{-boot} option.
 898
 899The values that can be specified here depend on the machine type, but are
 900the same that can be specified in the @code{-boot} command line option.
 901ETEXI
 902
 903    {
 904        .name       = "nmi",
 905        .args_type  = "",
 906        .params     = "",
 907        .help       = "inject an NMI",
 908        .cmd        = hmp_nmi,
 909    },
 910STEXI
 911@item nmi @var{cpu}
 912@findex nmi
 913Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
 914
 915ETEXI
 916
 917    {
 918        .name       = "ringbuf_write",
 919        .args_type  = "device:s,data:s",
 920        .params     = "device data",
 921        .help       = "Write to a ring buffer character device",
 922        .cmd        = hmp_ringbuf_write,
 923        .command_completion = ringbuf_write_completion,
 924    },
 925
 926STEXI
 927@item ringbuf_write @var{device} @var{data}
 928@findex ringbuf_write
 929Write @var{data} to ring buffer character device @var{device}.
 930@var{data} must be a UTF-8 string.
 931
 932ETEXI
 933
 934    {
 935        .name       = "ringbuf_read",
 936        .args_type  = "device:s,size:i",
 937        .params     = "device size",
 938        .help       = "Read from a ring buffer character device",
 939        .cmd        = hmp_ringbuf_read,
 940        .command_completion = ringbuf_write_completion,
 941    },
 942
 943STEXI
 944@item ringbuf_read @var{device}
 945@findex ringbuf_read
 946Read and print up to @var{size} bytes from ring buffer character
 947device @var{device}.
 948Certain non-printable characters are printed \uXXXX, where XXXX is the
 949character code in hexadecimal.  Character \ is printed \\.
 950Bug: can screw up when the buffer contains invalid UTF-8 sequences,
 951NUL characters, after the ring buffer lost data, and when reading
 952stops because the size limit is reached.
 953
 954ETEXI
 955
 956    {
 957        .name       = "announce_self",
 958        .args_type  = "interfaces:s?,id:s?",
 959        .params     = "[interfaces] [id]",
 960        .help       = "Trigger GARP/RARP announcements",
 961        .cmd        = hmp_announce_self,
 962    },
 963
 964STEXI
 965@item announce_self
 966@findex announce_self
 967Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating the
 968network infrastructure after a reconfiguration or some forms of migration.
 969The timings of the round are set by the migration announce parameters.
 970An optional comma separated @var{interfaces} list restricts the announce to the
 971named set of interfaces. An optional @var{id} can be used to start a separate announce
 972timer and to change the parameters of it later.
 973ETEXI
 974
 975    {
 976        .name       = "migrate",
 977        .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
 978        .params     = "[-d] [-b] [-i] [-r] uri",
 979        .help       = "migrate to URI (using -d to not wait for completion)"
 980                      "\n\t\t\t -b for migration without shared storage with"
 981                      " full copy of disk\n\t\t\t -i for migration without "
 982                      "shared storage with incremental copy of disk "
 983                      "(base image shared between src and destination)"
 984                      "\n\t\t\t -r to resume a paused migration",
 985        .cmd        = hmp_migrate,
 986    },
 987
 988
 989STEXI
 990@item migrate [-d] [-b] [-i] @var{uri}
 991@findex migrate
 992Migrate to @var{uri} (using -d to not wait for completion).
 993        -b for migration with full copy of disk
 994        -i for migration with incremental copy of disk (base image is shared)
 995ETEXI
 996
 997    {
 998        .name       = "migrate_cancel",
 999        .args_type  = "",
1000        .params     = "",
1001        .help       = "cancel the current VM migration",
1002        .cmd        = hmp_migrate_cancel,
1003    },
1004
1005STEXI
1006@item migrate_cancel
1007@findex migrate_cancel
1008Cancel the current VM migration.
1009ETEXI
1010
1011    {
1012        .name       = "migrate_continue",
1013        .args_type  = "state:s",
1014        .params     = "state",
1015        .help       = "Continue migration from the given paused state",
1016        .cmd        = hmp_migrate_continue,
1017    },
1018STEXI
1019@item migrate_continue @var{state}
1020@findex migrate_continue
1021Continue migration from the paused state @var{state}
1022ETEXI
1023
1024    {
1025        .name       = "migrate_incoming",
1026        .args_type  = "uri:s",
1027        .params     = "uri",
1028        .help       = "Continue an incoming migration from an -incoming defer",
1029        .cmd        = hmp_migrate_incoming,
1030    },
1031
1032STEXI
1033@item migrate_incoming @var{uri}
1034@findex migrate_incoming
1035Continue an incoming migration using the @var{uri} (that has the same syntax
1036as the -incoming option).
1037ETEXI
1038
1039    {
1040        .name       = "migrate_recover",
1041        .args_type  = "uri:s",
1042        .params     = "uri",
1043        .help       = "Continue a paused incoming postcopy migration",
1044        .cmd        = hmp_migrate_recover,
1045    },
1046
1047STEXI
1048@item migrate_recover @var{uri}
1049@findex migrate_recover
1050Continue a paused incoming postcopy migration using the @var{uri}.
1051ETEXI
1052
1053    {
1054        .name       = "migrate_pause",
1055        .args_type  = "",
1056        .params     = "",
1057        .help       = "Pause an ongoing migration (postcopy-only)",
1058        .cmd        = hmp_migrate_pause,
1059    },
1060
1061STEXI
1062@item migrate_pause
1063@findex migrate_pause
1064Pause an ongoing migration.  Currently it only supports postcopy.
1065ETEXI
1066
1067    {
1068        .name       = "migrate_set_cache_size",
1069        .args_type  = "value:o",
1070        .params     = "value",
1071        .help       = "set cache size (in bytes) for XBZRLE migrations,"
1072                      "the cache size will be rounded down to the nearest "
1073                      "power of 2.\n"
1074                      "The cache size affects the number of cache misses."
1075                      "In case of a high cache miss ratio you need to increase"
1076                      " the cache size",
1077        .cmd        = hmp_migrate_set_cache_size,
1078    },
1079
1080STEXI
1081@item migrate_set_cache_size @var{value}
1082@findex migrate_set_cache_size
1083Set cache size to @var{value} (in bytes) for xbzrle migrations.
1084ETEXI
1085
1086    {
1087        .name       = "migrate_set_speed",
1088        .args_type  = "value:o",
1089        .params     = "value",
1090        .help       = "set maximum speed (in bytes) for migrations. "
1091        "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1092        .cmd        = hmp_migrate_set_speed,
1093    },
1094
1095STEXI
1096@item migrate_set_speed @var{value}
1097@findex migrate_set_speed
1098Set maximum speed to @var{value} (in bytes) for migrations.
1099ETEXI
1100
1101    {
1102        .name       = "migrate_set_downtime",
1103        .args_type  = "value:T",
1104        .params     = "value",
1105        .help       = "set maximum tolerated downtime (in seconds) for migrations",
1106        .cmd        = hmp_migrate_set_downtime,
1107    },
1108
1109STEXI
1110@item migrate_set_downtime @var{second}
1111@findex migrate_set_downtime
1112Set maximum tolerated downtime (in seconds) for migration.
1113ETEXI
1114
1115    {
1116        .name       = "migrate_set_capability",
1117        .args_type  = "capability:s,state:b",
1118        .params     = "capability state",
1119        .help       = "Enable/Disable the usage of a capability for migration",
1120        .cmd        = hmp_migrate_set_capability,
1121        .command_completion = migrate_set_capability_completion,
1122    },
1123
1124STEXI
1125@item migrate_set_capability @var{capability} @var{state}
1126@findex migrate_set_capability
1127Enable/Disable the usage of a capability @var{capability} for migration.
1128ETEXI
1129
1130    {
1131        .name       = "migrate_set_parameter",
1132        .args_type  = "parameter:s,value:s",
1133        .params     = "parameter value",
1134        .help       = "Set the parameter for migration",
1135        .cmd        = hmp_migrate_set_parameter,
1136        .command_completion = migrate_set_parameter_completion,
1137    },
1138
1139STEXI
1140@item migrate_set_parameter @var{parameter} @var{value}
1141@findex migrate_set_parameter
1142Set the parameter @var{parameter} for migration.
1143ETEXI
1144
1145    {
1146        .name       = "migrate_start_postcopy",
1147        .args_type  = "",
1148        .params     = "",
1149        .help       = "Followup to a migration command to switch the migration"
1150                      " to postcopy mode. The postcopy-ram capability must "
1151                      "be set on both source and destination before the "
1152                      "original migration command .",
1153        .cmd        = hmp_migrate_start_postcopy,
1154    },
1155
1156STEXI
1157@item migrate_start_postcopy
1158@findex migrate_start_postcopy
1159Switch in-progress migration to postcopy mode. Ignored after the end of
1160migration (or once already in postcopy).
1161ETEXI
1162
1163    {
1164        .name       = "x_colo_lost_heartbeat",
1165        .args_type  = "",
1166        .params     = "",
1167        .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1168                      "a failover or takeover is needed.",
1169        .cmd = hmp_x_colo_lost_heartbeat,
1170    },
1171
1172STEXI
1173@item x_colo_lost_heartbeat
1174@findex x_colo_lost_heartbeat
1175Tell COLO that heartbeat is lost, a failover or takeover is needed.
1176ETEXI
1177
1178    {
1179        .name       = "client_migrate_info",
1180        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1181        .params     = "protocol hostname port tls-port cert-subject",
1182        .help       = "set migration information for remote display",
1183        .cmd        = hmp_client_migrate_info,
1184    },
1185
1186STEXI
1187@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1188@findex client_migrate_info
1189Set migration information for remote display.  This makes the server
1190ask the client to automatically reconnect using the new parameters
1191once migration finished successfully.  Only implemented for SPICE.
1192ETEXI
1193
1194    {
1195        .name       = "dump-guest-memory",
1196        .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1197        .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1198        .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1199                      "-p: do paging to get guest's memory mapping.\n\t\t\t"
1200                      "-d: return immediately (do not wait for completion).\n\t\t\t"
1201                      "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1202                      "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1203                      "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1204                      "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1205                      "    for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1206                      "begin: the starting physical address.\n\t\t\t"
1207                      "length: the memory size, in bytes.",
1208        .cmd        = hmp_dump_guest_memory,
1209    },
1210
1211STEXI
1212@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1213@item dump-guest-memory [-z|-l|-s|-w] @var{filename}
1214@findex dump-guest-memory
1215Dump guest memory to @var{protocol}. The file can be processed with crash or
1216gdb. Without -z|-l|-s|-w, the dump format is ELF.
1217        -p: do paging to get guest's memory mapping.
1218        -z: dump in kdump-compressed format, with zlib compression.
1219        -l: dump in kdump-compressed format, with lzo compression.
1220        -s: dump in kdump-compressed format, with snappy compression.
1221        -w: dump in Windows crashdump format (can be used instead of ELF-dump converting),
1222            for Windows x64 guests with vmcoreinfo driver only
1223  filename: dump file name.
1224     begin: the starting physical address. It's optional, and should be
1225            specified together with length.
1226    length: the memory size, in bytes. It's optional, and should be specified
1227            together with begin.
1228ETEXI
1229
1230#if defined(TARGET_S390X)
1231    {
1232        .name       = "dump-skeys",
1233        .args_type  = "filename:F",
1234        .params     = "",
1235        .help       = "Save guest storage keys into file 'filename'.\n",
1236        .cmd        = hmp_dump_skeys,
1237    },
1238#endif
1239
1240STEXI
1241@item dump-skeys @var{filename}
1242@findex dump-skeys
1243Save guest storage keys to a file.
1244ETEXI
1245
1246#if defined(TARGET_S390X)
1247    {
1248        .name       = "migration_mode",
1249        .args_type  = "mode:i",
1250        .params     = "mode",
1251        .help       = "Enables or disables migration mode\n",
1252        .cmd        = hmp_migrationmode,
1253    },
1254#endif
1255
1256STEXI
1257@item migration_mode @var{mode}
1258@findex migration_mode
1259Enables or disables migration mode.
1260ETEXI
1261
1262    {
1263        .name       = "snapshot_blkdev",
1264        .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1265        .params     = "[-n] device [new-image-file] [format]",
1266        .help       = "initiates a live snapshot\n\t\t\t"
1267                      "of device. If a new image file is specified, the\n\t\t\t"
1268                      "new image file will become the new root image.\n\t\t\t"
1269                      "If format is specified, the snapshot file will\n\t\t\t"
1270                      "be created in that format.\n\t\t\t"
1271                      "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1272                      "to reuse the image found in new-image-file, instead of\n\t\t\t"
1273                      "recreating it from scratch.",
1274        .cmd        = hmp_snapshot_blkdev,
1275    },
1276
1277STEXI
1278@item snapshot_blkdev
1279@findex snapshot_blkdev
1280Snapshot device, using snapshot file as target if provided
1281ETEXI
1282
1283    {
1284        .name       = "snapshot_blkdev_internal",
1285        .args_type  = "device:B,name:s",
1286        .params     = "device name",
1287        .help       = "take an internal snapshot of device.\n\t\t\t"
1288                      "The format of the image used by device must\n\t\t\t"
1289                      "support it, such as qcow2.\n\t\t\t",
1290        .cmd        = hmp_snapshot_blkdev_internal,
1291    },
1292
1293STEXI
1294@item snapshot_blkdev_internal
1295@findex snapshot_blkdev_internal
1296Take an internal snapshot on device if it support
1297ETEXI
1298
1299    {
1300        .name       = "snapshot_delete_blkdev_internal",
1301        .args_type  = "device:B,name:s,id:s?",
1302        .params     = "device name [id]",
1303        .help       = "delete an internal snapshot of device.\n\t\t\t"
1304                      "If id is specified, qemu will try delete\n\t\t\t"
1305                      "the snapshot matching both id and name.\n\t\t\t"
1306                      "The format of the image used by device must\n\t\t\t"
1307                      "support it, such as qcow2.\n\t\t\t",
1308        .cmd        = hmp_snapshot_delete_blkdev_internal,
1309    },
1310
1311STEXI
1312@item snapshot_delete_blkdev_internal
1313@findex snapshot_delete_blkdev_internal
1314Delete an internal snapshot on device if it support
1315ETEXI
1316
1317    {
1318        .name       = "drive_mirror",
1319        .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1320        .params     = "[-n] [-f] device target [format]",
1321        .help       = "initiates live storage\n\t\t\t"
1322                      "migration for a device. The device's contents are\n\t\t\t"
1323                      "copied to the new image file, including data that\n\t\t\t"
1324                      "is written after the command is started.\n\t\t\t"
1325                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1326                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1327                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1328                      "so that the result does not need a backing file.\n\t\t\t",
1329        .cmd        = hmp_drive_mirror,
1330    },
1331STEXI
1332@item drive_mirror
1333@findex drive_mirror
1334Start mirroring a block device's writes to a new destination,
1335using the specified target.
1336ETEXI
1337
1338    {
1339        .name       = "drive_backup",
1340        .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1341        .params     = "[-n] [-f] [-c] device target [format]",
1342        .help       = "initiates a point-in-time\n\t\t\t"
1343                      "copy for a device. The device's contents are\n\t\t\t"
1344                      "copied to the new image file, excluding data that\n\t\t\t"
1345                      "is written after the command is started.\n\t\t\t"
1346                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1347                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1348                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1349                      "so that the result does not need a backing file.\n\t\t\t"
1350                      "The -c flag requests QEMU to compress backup data\n\t\t\t"
1351                      "(if the target format supports it).\n\t\t\t",
1352        .cmd        = hmp_drive_backup,
1353    },
1354STEXI
1355@item drive_backup
1356@findex drive_backup
1357Start a point-in-time copy of a block device to a specificed target.
1358ETEXI
1359
1360    {
1361        .name       = "drive_add",
1362        .args_type  = "node:-n,pci_addr:s,opts:s",
1363        .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1364                      "[file=file][,if=type][,bus=n]\n"
1365                      "[,unit=m][,media=d][,index=i]\n"
1366                      "[,snapshot=on|off][,cache=on|off]\n"
1367                      "[,readonly=on|off][,copy-on-read=on|off]",
1368        .help       = "add drive to PCI storage controller",
1369        .cmd        = hmp_drive_add,
1370    },
1371
1372STEXI
1373@item drive_add
1374@findex drive_add
1375Add drive to PCI storage controller.
1376ETEXI
1377
1378    {
1379        .name       = "pcie_aer_inject_error",
1380        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1381                      "id:s,error_status:s,"
1382                      "header0:i?,header1:i?,header2:i?,header3:i?,"
1383                      "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1384        .params     = "[-a] [-c] id "
1385                      "<error_status> [<tlp header> [<tlp header prefix>]]",
1386        .help       = "inject pcie aer error\n\t\t\t"
1387                      " -a for advisory non fatal error\n\t\t\t"
1388                      " -c for correctable error\n\t\t\t"
1389                      "<id> = qdev device id\n\t\t\t"
1390                      "<error_status> = error string or 32bit\n\t\t\t"
1391                      "<tlb header> = 32bit x 4\n\t\t\t"
1392                      "<tlb header prefix> = 32bit x 4",
1393        .cmd        = hmp_pcie_aer_inject_error,
1394    },
1395
1396STEXI
1397@item pcie_aer_inject_error
1398@findex pcie_aer_inject_error
1399Inject PCIe AER error
1400ETEXI
1401
1402    {
1403        .name       = "netdev_add",
1404        .args_type  = "netdev:O",
1405        .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1406        .help       = "add host network device",
1407        .cmd        = hmp_netdev_add,
1408        .command_completion = netdev_add_completion,
1409    },
1410
1411STEXI
1412@item netdev_add
1413@findex netdev_add
1414Add host network device.
1415ETEXI
1416
1417    {
1418        .name       = "netdev_del",
1419        .args_type  = "id:s",
1420        .params     = "id",
1421        .help       = "remove host network device",
1422        .cmd        = hmp_netdev_del,
1423        .command_completion = netdev_del_completion,
1424    },
1425
1426STEXI
1427@item netdev_del
1428@findex netdev_del
1429Remove host network device.
1430ETEXI
1431
1432    {
1433        .name       = "object_add",
1434        .args_type  = "object:O",
1435        .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1436        .help       = "create QOM object",
1437        .cmd        = hmp_object_add,
1438        .command_completion = object_add_completion,
1439    },
1440
1441STEXI
1442@item object_add
1443@findex object_add
1444Create QOM object.
1445ETEXI
1446
1447    {
1448        .name       = "object_del",
1449        .args_type  = "id:s",
1450        .params     = "id",
1451        .help       = "destroy QOM object",
1452        .cmd        = hmp_object_del,
1453        .command_completion = object_del_completion,
1454    },
1455
1456STEXI
1457@item object_del
1458@findex object_del
1459Destroy QOM object.
1460ETEXI
1461
1462#ifdef CONFIG_SLIRP
1463    {
1464        .name       = "hostfwd_add",
1465        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1466        .params     = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1467        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1468        .cmd        = hmp_hostfwd_add,
1469    },
1470#endif
1471STEXI
1472@item hostfwd_add
1473@findex hostfwd_add
1474Redirect TCP or UDP connections from host to guest (requires -net user).
1475ETEXI
1476
1477#ifdef CONFIG_SLIRP
1478    {
1479        .name       = "hostfwd_remove",
1480        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1481        .params     = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1482        .help       = "remove host-to-guest TCP or UDP redirection",
1483        .cmd        = hmp_hostfwd_remove,
1484    },
1485
1486#endif
1487STEXI
1488@item hostfwd_remove
1489@findex hostfwd_remove
1490Remove host-to-guest TCP or UDP redirection.
1491ETEXI
1492
1493    {
1494        .name       = "balloon",
1495        .args_type  = "value:M",
1496        .params     = "target",
1497        .help       = "request VM to change its memory allocation (in MB)",
1498        .cmd        = hmp_balloon,
1499    },
1500
1501STEXI
1502@item balloon @var{value}
1503@findex balloon
1504Request VM to change its memory allocation to @var{value} (in MB).
1505ETEXI
1506
1507    {
1508        .name       = "set_link",
1509        .args_type  = "name:s,up:b",
1510        .params     = "name on|off",
1511        .help       = "change the link status of a network adapter",
1512        .cmd        = hmp_set_link,
1513        .command_completion = set_link_completion,
1514    },
1515
1516STEXI
1517@item set_link @var{name} [on|off]
1518@findex set_link
1519Switch link @var{name} on (i.e. up) or off (i.e. down).
1520ETEXI
1521
1522    {
1523        .name       = "watchdog_action",
1524        .args_type  = "action:s",
1525        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1526        .help       = "change watchdog action",
1527        .cmd        = hmp_watchdog_action,
1528        .command_completion = watchdog_action_completion,
1529    },
1530
1531STEXI
1532@item watchdog_action
1533@findex watchdog_action
1534Change watchdog action.
1535ETEXI
1536
1537    {
1538        .name       = "acl_show",
1539        .args_type  = "aclname:s",
1540        .params     = "aclname",
1541        .help       = "list rules in the access control list",
1542        .cmd        = hmp_acl_show,
1543    },
1544
1545STEXI
1546@item acl_show @var{aclname}
1547@findex acl_show
1548List all the matching rules in the access control list, and the default
1549policy. There are currently two named access control lists,
1550@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1551certificate distinguished name, and SASL username respectively.
1552ETEXI
1553
1554    {
1555        .name       = "acl_policy",
1556        .args_type  = "aclname:s,policy:s",
1557        .params     = "aclname allow|deny",
1558        .help       = "set default access control list policy",
1559        .cmd        = hmp_acl_policy,
1560    },
1561
1562STEXI
1563@item acl_policy @var{aclname} @code{allow|deny}
1564@findex acl_policy
1565Set the default access control list policy, used in the event that
1566none of the explicit rules match. The default policy at startup is
1567always @code{deny}.
1568ETEXI
1569
1570    {
1571        .name       = "acl_add",
1572        .args_type  = "aclname:s,match:s,policy:s,index:i?",
1573        .params     = "aclname match allow|deny [index]",
1574        .help       = "add a match rule to the access control list",
1575        .cmd        = hmp_acl_add,
1576    },
1577
1578STEXI
1579@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1580@findex acl_add
1581Add a match rule to the access control list, allowing or denying access.
1582The match will normally be an exact username or x509 distinguished name,
1583but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1584allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1585normally be appended to the end of the ACL, but can be inserted
1586earlier in the list if the optional @var{index} parameter is supplied.
1587ETEXI
1588
1589    {
1590        .name       = "acl_remove",
1591        .args_type  = "aclname:s,match:s",
1592        .params     = "aclname match",
1593        .help       = "remove a match rule from the access control list",
1594        .cmd        = hmp_acl_remove,
1595    },
1596
1597STEXI
1598@item acl_remove @var{aclname} @var{match}
1599@findex acl_remove
1600Remove the specified match rule from the access control list.
1601ETEXI
1602
1603    {
1604        .name       = "acl_reset",
1605        .args_type  = "aclname:s",
1606        .params     = "aclname",
1607        .help       = "reset the access control list",
1608        .cmd        = hmp_acl_reset,
1609    },
1610
1611STEXI
1612@item acl_reset @var{aclname}
1613@findex acl_reset
1614Remove all matches from the access control list, and set the default
1615policy back to @code{deny}.
1616ETEXI
1617
1618    {
1619        .name       = "nbd_server_start",
1620        .args_type  = "all:-a,writable:-w,uri:s",
1621        .params     = "nbd_server_start [-a] [-w] host:port",
1622        .help       = "serve block devices on the given host and port",
1623        .cmd        = hmp_nbd_server_start,
1624    },
1625STEXI
1626@item nbd_server_start @var{host}:@var{port}
1627@findex nbd_server_start
1628Start an NBD server on the given host and/or port.  If the @option{-a}
1629option is included, all of the virtual machine's block devices that
1630have an inserted media on them are automatically exported; in this case,
1631the @option{-w} option makes the devices writable too.
1632ETEXI
1633
1634    {
1635        .name       = "nbd_server_add",
1636        .args_type  = "writable:-w,device:B,name:s?",
1637        .params     = "nbd_server_add [-w] device [name]",
1638        .help       = "export a block device via NBD",
1639        .cmd        = hmp_nbd_server_add,
1640    },
1641STEXI
1642@item nbd_server_add @var{device} [ @var{name} ]
1643@findex nbd_server_add
1644Export a block device through QEMU's NBD server, which must be started
1645beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
1646exported device writable too.  The export name is controlled by @var{name},
1647defaulting to @var{device}.
1648ETEXI
1649
1650    {
1651        .name       = "nbd_server_remove",
1652        .args_type  = "force:-f,name:s",
1653        .params     = "nbd_server_remove [-f] name",
1654        .help       = "remove an export previously exposed via NBD",
1655        .cmd        = hmp_nbd_server_remove,
1656    },
1657STEXI
1658@item nbd_server_remove [-f] @var{name}
1659@findex nbd_server_remove
1660Stop exporting a block device through QEMU's NBD server, which was
1661previously started with @command{nbd_server_add}.  The @option{-f}
1662option forces the server to drop the export immediately even if
1663clients are connected; otherwise the command fails unless there are no
1664clients.
1665ETEXI
1666
1667    {
1668        .name       = "nbd_server_stop",
1669        .args_type  = "",
1670        .params     = "nbd_server_stop",
1671        .help       = "stop serving block devices using the NBD protocol",
1672        .cmd        = hmp_nbd_server_stop,
1673    },
1674STEXI
1675@item nbd_server_stop
1676@findex nbd_server_stop
1677Stop the QEMU embedded NBD server.
1678ETEXI
1679
1680
1681#if defined(TARGET_I386)
1682
1683    {
1684        .name       = "mce",
1685        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1686        .params     = "[-b] cpu bank status mcgstatus addr misc",
1687        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1688        .cmd        = hmp_mce,
1689    },
1690
1691#endif
1692STEXI
1693@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1694@findex mce (x86)
1695Inject an MCE on the given CPU (x86 only).
1696ETEXI
1697
1698    {
1699        .name       = "getfd",
1700        .args_type  = "fdname:s",
1701        .params     = "getfd name",
1702        .help       = "receive a file descriptor via SCM rights and assign it a name",
1703        .cmd        = hmp_getfd,
1704    },
1705
1706STEXI
1707@item getfd @var{fdname}
1708@findex getfd
1709If a file descriptor is passed alongside this command using the SCM_RIGHTS
1710mechanism on unix sockets, it is stored using the name @var{fdname} for
1711later use by other monitor commands.
1712ETEXI
1713
1714    {
1715        .name       = "closefd",
1716        .args_type  = "fdname:s",
1717        .params     = "closefd name",
1718        .help       = "close a file descriptor previously passed via SCM rights",
1719        .cmd        = hmp_closefd,
1720    },
1721
1722STEXI
1723@item closefd @var{fdname}
1724@findex closefd
1725Close the file descriptor previously assigned to @var{fdname} using the
1726@code{getfd} command. This is only needed if the file descriptor was never
1727used by another monitor command.
1728ETEXI
1729
1730    {
1731        .name       = "block_passwd",
1732        .args_type  = "device:B,password:s",
1733        .params     = "block_passwd device password",
1734        .help       = "set the password of encrypted block devices",
1735        .cmd        = hmp_block_passwd,
1736    },
1737
1738STEXI
1739@item block_passwd @var{device} @var{password}
1740@findex block_passwd
1741Set the encrypted device @var{device} password to @var{password}
1742
1743This command is now obsolete and will always return an error since 2.10
1744ETEXI
1745
1746    {
1747        .name       = "block_set_io_throttle",
1748        .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1749        .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1750        .help       = "change I/O throttle limits for a block drive",
1751        .cmd        = hmp_block_set_io_throttle,
1752    },
1753
1754STEXI
1755@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1756@findex block_set_io_throttle
1757Change I/O throttle limits for a block drive to @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}.
1758@var{device} can be a block device name, a qdev ID or a QOM path.
1759ETEXI
1760
1761    {
1762        .name       = "set_password",
1763        .args_type  = "protocol:s,password:s,connected:s?",
1764        .params     = "protocol password action-if-connected",
1765        .help       = "set spice/vnc password",
1766        .cmd        = hmp_set_password,
1767    },
1768
1769STEXI
1770@item set_password [ vnc | spice ] password [ action-if-connected ]
1771@findex set_password
1772Change spice/vnc password.  Use zero to make the password stay valid
1773forever.  @var{action-if-connected} specifies what should happen in
1774case a connection is established: @var{fail} makes the password change
1775fail.  @var{disconnect} changes the password and disconnects the
1776client.  @var{keep} changes the password and keeps the connection up.
1777@var{keep} is the default.
1778ETEXI
1779
1780    {
1781        .name       = "expire_password",
1782        .args_type  = "protocol:s,time:s",
1783        .params     = "protocol time",
1784        .help       = "set spice/vnc password expire-time",
1785        .cmd        = hmp_expire_password,
1786    },
1787
1788STEXI
1789@item expire_password [ vnc | spice ] expire-time
1790@findex expire_password
1791Specify when a password for spice/vnc becomes
1792invalid. @var{expire-time} accepts:
1793
1794@table @var
1795@item now
1796Invalidate password instantly.
1797
1798@item never
1799Password stays valid forever.
1800
1801@item +nsec
1802Password stays valid for @var{nsec} seconds starting now.
1803
1804@item nsec
1805Password is invalidated at the given time.  @var{nsec} are the seconds
1806passed since 1970, i.e. unix epoch.
1807
1808@end table
1809ETEXI
1810
1811    {
1812        .name       = "chardev-add",
1813        .args_type  = "args:s",
1814        .params     = "args",
1815        .help       = "add chardev",
1816        .cmd        = hmp_chardev_add,
1817        .command_completion = chardev_add_completion,
1818    },
1819
1820STEXI
1821@item chardev-add args
1822@findex chardev-add
1823chardev-add accepts the same parameters as the -chardev command line switch.
1824
1825ETEXI
1826
1827    {
1828        .name       = "chardev-change",
1829        .args_type  = "id:s,args:s",
1830        .params     = "id args",
1831        .help       = "change chardev",
1832        .cmd        = hmp_chardev_change,
1833    },
1834
1835STEXI
1836@item chardev-change args
1837@findex chardev-change
1838chardev-change accepts existing chardev @var{id} and then the same arguments
1839as the -chardev command line switch (except for "id").
1840
1841ETEXI
1842
1843    {
1844        .name       = "chardev-remove",
1845        .args_type  = "id:s",
1846        .params     = "id",
1847        .help       = "remove chardev",
1848        .cmd        = hmp_chardev_remove,
1849        .command_completion = chardev_remove_completion,
1850    },
1851
1852STEXI
1853@item chardev-remove id
1854@findex chardev-remove
1855Removes the chardev @var{id}.
1856
1857ETEXI
1858
1859    {
1860        .name       = "chardev-send-break",
1861        .args_type  = "id:s",
1862        .params     = "id",
1863        .help       = "send a break on chardev",
1864        .cmd        = hmp_chardev_send_break,
1865        .command_completion = chardev_remove_completion,
1866    },
1867
1868STEXI
1869@item chardev-send-break id
1870@findex chardev-send-break
1871Send a break on the chardev @var{id}.
1872
1873ETEXI
1874
1875    {
1876        .name       = "qemu-io",
1877        .args_type  = "device:B,command:s",
1878        .params     = "[device] \"[command]\"",
1879        .help       = "run a qemu-io command on a block device",
1880        .cmd        = hmp_qemu_io,
1881    },
1882
1883STEXI
1884@item qemu-io @var{device} @var{command}
1885@findex qemu-io
1886Executes a qemu-io command on the given block device.
1887
1888ETEXI
1889
1890    {
1891        .name       = "cpu-add",
1892        .args_type  = "id:i",
1893        .params     = "id",
1894        .help       = "add cpu (deprecated, use device_add instead)",
1895        .cmd        = hmp_cpu_add,
1896    },
1897
1898STEXI
1899@item cpu-add @var{id}
1900@findex cpu-add
1901Add CPU with id @var{id}.  This command is deprecated, please
1902+use @code{device_add} instead. For details, refer to
1903'docs/cpu-hotplug.rst'.
1904ETEXI
1905
1906    {
1907        .name       = "qom-list",
1908        .args_type  = "path:s?",
1909        .params     = "path",
1910        .help       = "list QOM properties",
1911        .cmd        = hmp_qom_list,
1912        .flags      = "p",
1913    },
1914
1915STEXI
1916@item qom-list [@var{path}]
1917Print QOM properties of object at location @var{path}
1918ETEXI
1919
1920    {
1921        .name       = "qom-set",
1922        .args_type  = "path:s,property:s,value:s",
1923        .params     = "path property value",
1924        .help       = "set QOM property",
1925        .cmd        = hmp_qom_set,
1926        .flags      = "p",
1927    },
1928
1929STEXI
1930@item qom-set @var{path} @var{property} @var{value}
1931Set QOM property @var{property} of object at location @var{path} to value @var{value}
1932ETEXI
1933
1934    {
1935        .name       = "info",
1936        .args_type  = "item:s?",
1937        .params     = "[subcommand]",
1938        .help       = "show various information about the system state",
1939        .cmd        = hmp_info_help,
1940        .sub_table  = hmp_info_cmds,
1941        .flags      = "p",
1942    },
1943
1944STEXI
1945@end table
1946ETEXI
1947