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 = "", 959 .params = "", 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. 970ETEXI 971 972 { 973 .name = "migrate", 974 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s", 975 .params = "[-d] [-b] [-i] [-r] uri", 976 .help = "migrate to URI (using -d to not wait for completion)" 977 "\n\t\t\t -b for migration without shared storage with" 978 " full copy of disk\n\t\t\t -i for migration without " 979 "shared storage with incremental copy of disk " 980 "(base image shared between src and destination)" 981 "\n\t\t\t -r to resume a paused migration", 982 .cmd = hmp_migrate, 983 }, 984 985 986STEXI 987@item migrate [-d] [-b] [-i] @var{uri} 988@findex migrate 989Migrate to @var{uri} (using -d to not wait for completion). 990 -b for migration with full copy of disk 991 -i for migration with incremental copy of disk (base image is shared) 992ETEXI 993 994 { 995 .name = "migrate_cancel", 996 .args_type = "", 997 .params = "", 998 .help = "cancel the current VM migration", 999 .cmd = hmp_migrate_cancel, 1000 }, 1001 1002STEXI 1003@item migrate_cancel 1004@findex migrate_cancel 1005Cancel the current VM migration. 1006ETEXI 1007 1008 { 1009 .name = "migrate_continue", 1010 .args_type = "state:s", 1011 .params = "state", 1012 .help = "Continue migration from the given paused state", 1013 .cmd = hmp_migrate_continue, 1014 }, 1015STEXI 1016@item migrate_continue @var{state} 1017@findex migrate_continue 1018Continue migration from the paused state @var{state} 1019ETEXI 1020 1021 { 1022 .name = "migrate_incoming", 1023 .args_type = "uri:s", 1024 .params = "uri", 1025 .help = "Continue an incoming migration from an -incoming defer", 1026 .cmd = hmp_migrate_incoming, 1027 }, 1028 1029STEXI 1030@item migrate_incoming @var{uri} 1031@findex migrate_incoming 1032Continue an incoming migration using the @var{uri} (that has the same syntax 1033as the -incoming option). 1034ETEXI 1035 1036 { 1037 .name = "migrate_recover", 1038 .args_type = "uri:s", 1039 .params = "uri", 1040 .help = "Continue a paused incoming postcopy migration", 1041 .cmd = hmp_migrate_recover, 1042 }, 1043 1044STEXI 1045@item migrate_recover @var{uri} 1046@findex migrate_recover 1047Continue a paused incoming postcopy migration using the @var{uri}. 1048ETEXI 1049 1050 { 1051 .name = "migrate_pause", 1052 .args_type = "", 1053 .params = "", 1054 .help = "Pause an ongoing migration (postcopy-only)", 1055 .cmd = hmp_migrate_pause, 1056 }, 1057 1058STEXI 1059@item migrate_pause 1060@findex migrate_pause 1061Pause an ongoing migration. Currently it only supports postcopy. 1062ETEXI 1063 1064 { 1065 .name = "migrate_set_cache_size", 1066 .args_type = "value:o", 1067 .params = "value", 1068 .help = "set cache size (in bytes) for XBZRLE migrations," 1069 "the cache size will be rounded down to the nearest " 1070 "power of 2.\n" 1071 "The cache size affects the number of cache misses." 1072 "In case of a high cache miss ratio you need to increase" 1073 " the cache size", 1074 .cmd = hmp_migrate_set_cache_size, 1075 }, 1076 1077STEXI 1078@item migrate_set_cache_size @var{value} 1079@findex migrate_set_cache_size 1080Set cache size to @var{value} (in bytes) for xbzrle migrations. 1081ETEXI 1082 1083 { 1084 .name = "migrate_set_speed", 1085 .args_type = "value:o", 1086 .params = "value", 1087 .help = "set maximum speed (in bytes) for migrations. " 1088 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 1089 .cmd = hmp_migrate_set_speed, 1090 }, 1091 1092STEXI 1093@item migrate_set_speed @var{value} 1094@findex migrate_set_speed 1095Set maximum speed to @var{value} (in bytes) for migrations. 1096ETEXI 1097 1098 { 1099 .name = "migrate_set_downtime", 1100 .args_type = "value:T", 1101 .params = "value", 1102 .help = "set maximum tolerated downtime (in seconds) for migrations", 1103 .cmd = hmp_migrate_set_downtime, 1104 }, 1105 1106STEXI 1107@item migrate_set_downtime @var{second} 1108@findex migrate_set_downtime 1109Set maximum tolerated downtime (in seconds) for migration. 1110ETEXI 1111 1112 { 1113 .name = "migrate_set_capability", 1114 .args_type = "capability:s,state:b", 1115 .params = "capability state", 1116 .help = "Enable/Disable the usage of a capability for migration", 1117 .cmd = hmp_migrate_set_capability, 1118 .command_completion = migrate_set_capability_completion, 1119 }, 1120 1121STEXI 1122@item migrate_set_capability @var{capability} @var{state} 1123@findex migrate_set_capability 1124Enable/Disable the usage of a capability @var{capability} for migration. 1125ETEXI 1126 1127 { 1128 .name = "migrate_set_parameter", 1129 .args_type = "parameter:s,value:s", 1130 .params = "parameter value", 1131 .help = "Set the parameter for migration", 1132 .cmd = hmp_migrate_set_parameter, 1133 .command_completion = migrate_set_parameter_completion, 1134 }, 1135 1136STEXI 1137@item migrate_set_parameter @var{parameter} @var{value} 1138@findex migrate_set_parameter 1139Set the parameter @var{parameter} for migration. 1140ETEXI 1141 1142 { 1143 .name = "migrate_start_postcopy", 1144 .args_type = "", 1145 .params = "", 1146 .help = "Followup to a migration command to switch the migration" 1147 " to postcopy mode. The postcopy-ram capability must " 1148 "be set on both source and destination before the " 1149 "original migration command .", 1150 .cmd = hmp_migrate_start_postcopy, 1151 }, 1152 1153STEXI 1154@item migrate_start_postcopy 1155@findex migrate_start_postcopy 1156Switch in-progress migration to postcopy mode. Ignored after the end of 1157migration (or once already in postcopy). 1158ETEXI 1159 1160 { 1161 .name = "x_colo_lost_heartbeat", 1162 .args_type = "", 1163 .params = "", 1164 .help = "Tell COLO that heartbeat is lost,\n\t\t\t" 1165 "a failover or takeover is needed.", 1166 .cmd = hmp_x_colo_lost_heartbeat, 1167 }, 1168 1169STEXI 1170@item x_colo_lost_heartbeat 1171@findex x_colo_lost_heartbeat 1172Tell COLO that heartbeat is lost, a failover or takeover is needed. 1173ETEXI 1174 1175 { 1176 .name = "client_migrate_info", 1177 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1178 .params = "protocol hostname port tls-port cert-subject", 1179 .help = "set migration information for remote display", 1180 .cmd = hmp_client_migrate_info, 1181 }, 1182 1183STEXI 1184@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1185@findex client_migrate_info 1186Set migration information for remote display. This makes the server 1187ask the client to automatically reconnect using the new parameters 1188once migration finished successfully. Only implemented for SPICE. 1189ETEXI 1190 1191 { 1192 .name = "dump-guest-memory", 1193 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?", 1194 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]", 1195 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1196 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1197 "-d: return immediately (do not wait for completion).\n\t\t\t" 1198 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1199 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1200 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1201 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t" 1202 " for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t" 1203 "begin: the starting physical address.\n\t\t\t" 1204 "length: the memory size, in bytes.", 1205 .cmd = hmp_dump_guest_memory, 1206 }, 1207 1208STEXI 1209@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1210@item dump-guest-memory [-z|-l|-s|-w] @var{filename} 1211@findex dump-guest-memory 1212Dump guest memory to @var{protocol}. The file can be processed with crash or 1213gdb. Without -z|-l|-s|-w, the dump format is ELF. 1214 -p: do paging to get guest's memory mapping. 1215 -z: dump in kdump-compressed format, with zlib compression. 1216 -l: dump in kdump-compressed format, with lzo compression. 1217 -s: dump in kdump-compressed format, with snappy compression. 1218 -w: dump in Windows crashdump format (can be used instead of ELF-dump converting), 1219 for Windows x64 guests with vmcoreinfo driver only 1220 filename: dump file name. 1221 begin: the starting physical address. It's optional, and should be 1222 specified together with length. 1223 length: the memory size, in bytes. It's optional, and should be specified 1224 together with begin. 1225ETEXI 1226 1227#if defined(TARGET_S390X) 1228 { 1229 .name = "dump-skeys", 1230 .args_type = "filename:F", 1231 .params = "", 1232 .help = "Save guest storage keys into file 'filename'.\n", 1233 .cmd = hmp_dump_skeys, 1234 }, 1235#endif 1236 1237STEXI 1238@item dump-skeys @var{filename} 1239@findex dump-skeys 1240Save guest storage keys to a file. 1241ETEXI 1242 1243#if defined(TARGET_S390X) 1244 { 1245 .name = "migration_mode", 1246 .args_type = "mode:i", 1247 .params = "mode", 1248 .help = "Enables or disables migration mode\n", 1249 .cmd = hmp_migrationmode, 1250 }, 1251#endif 1252 1253STEXI 1254@item migration_mode @var{mode} 1255@findex migration_mode 1256Enables or disables migration mode. 1257ETEXI 1258 1259 { 1260 .name = "snapshot_blkdev", 1261 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1262 .params = "[-n] device [new-image-file] [format]", 1263 .help = "initiates a live snapshot\n\t\t\t" 1264 "of device. If a new image file is specified, the\n\t\t\t" 1265 "new image file will become the new root image.\n\t\t\t" 1266 "If format is specified, the snapshot file will\n\t\t\t" 1267 "be created in that format.\n\t\t\t" 1268 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1269 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1270 "recreating it from scratch.", 1271 .cmd = hmp_snapshot_blkdev, 1272 }, 1273 1274STEXI 1275@item snapshot_blkdev 1276@findex snapshot_blkdev 1277Snapshot device, using snapshot file as target if provided 1278ETEXI 1279 1280 { 1281 .name = "snapshot_blkdev_internal", 1282 .args_type = "device:B,name:s", 1283 .params = "device name", 1284 .help = "take an internal snapshot of device.\n\t\t\t" 1285 "The format of the image used by device must\n\t\t\t" 1286 "support it, such as qcow2.\n\t\t\t", 1287 .cmd = hmp_snapshot_blkdev_internal, 1288 }, 1289 1290STEXI 1291@item snapshot_blkdev_internal 1292@findex snapshot_blkdev_internal 1293Take an internal snapshot on device if it support 1294ETEXI 1295 1296 { 1297 .name = "snapshot_delete_blkdev_internal", 1298 .args_type = "device:B,name:s,id:s?", 1299 .params = "device name [id]", 1300 .help = "delete an internal snapshot of device.\n\t\t\t" 1301 "If id is specified, qemu will try delete\n\t\t\t" 1302 "the snapshot matching both id and name.\n\t\t\t" 1303 "The format of the image used by device must\n\t\t\t" 1304 "support it, such as qcow2.\n\t\t\t", 1305 .cmd = hmp_snapshot_delete_blkdev_internal, 1306 }, 1307 1308STEXI 1309@item snapshot_delete_blkdev_internal 1310@findex snapshot_delete_blkdev_internal 1311Delete an internal snapshot on device if it support 1312ETEXI 1313 1314 { 1315 .name = "drive_mirror", 1316 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1317 .params = "[-n] [-f] device target [format]", 1318 .help = "initiates live storage\n\t\t\t" 1319 "migration for a device. The device's contents are\n\t\t\t" 1320 "copied to the new image file, including data that\n\t\t\t" 1321 "is written after the command is started.\n\t\t\t" 1322 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1323 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1324 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1325 "so that the result does not need a backing file.\n\t\t\t", 1326 .cmd = hmp_drive_mirror, 1327 }, 1328STEXI 1329@item drive_mirror 1330@findex drive_mirror 1331Start mirroring a block device's writes to a new destination, 1332using the specified target. 1333ETEXI 1334 1335 { 1336 .name = "drive_backup", 1337 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?", 1338 .params = "[-n] [-f] [-c] device target [format]", 1339 .help = "initiates a point-in-time\n\t\t\t" 1340 "copy for a device. The device's contents are\n\t\t\t" 1341 "copied to the new image file, excluding data that\n\t\t\t" 1342 "is written after the command is started.\n\t\t\t" 1343 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1344 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1345 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1346 "so that the result does not need a backing file.\n\t\t\t" 1347 "The -c flag requests QEMU to compress backup data\n\t\t\t" 1348 "(if the target format supports it).\n\t\t\t", 1349 .cmd = hmp_drive_backup, 1350 }, 1351STEXI 1352@item drive_backup 1353@findex drive_backup 1354Start a point-in-time copy of a block device to a specificed target. 1355ETEXI 1356 1357 { 1358 .name = "drive_add", 1359 .args_type = "node:-n,pci_addr:s,opts:s", 1360 .params = "[-n] [[<domain>:]<bus>:]<slot>\n" 1361 "[file=file][,if=type][,bus=n]\n" 1362 "[,unit=m][,media=d][,index=i]\n" 1363 "[,snapshot=on|off][,cache=on|off]\n" 1364 "[,readonly=on|off][,copy-on-read=on|off]", 1365 .help = "add drive to PCI storage controller", 1366 .cmd = hmp_drive_add, 1367 }, 1368 1369STEXI 1370@item drive_add 1371@findex drive_add 1372Add drive to PCI storage controller. 1373ETEXI 1374 1375 { 1376 .name = "pcie_aer_inject_error", 1377 .args_type = "advisory_non_fatal:-a,correctable:-c," 1378 "id:s,error_status:s," 1379 "header0:i?,header1:i?,header2:i?,header3:i?," 1380 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1381 .params = "[-a] [-c] id " 1382 "<error_status> [<tlp header> [<tlp header prefix>]]", 1383 .help = "inject pcie aer error\n\t\t\t" 1384 " -a for advisory non fatal error\n\t\t\t" 1385 " -c for correctable error\n\t\t\t" 1386 "<id> = qdev device id\n\t\t\t" 1387 "<error_status> = error string or 32bit\n\t\t\t" 1388 "<tlb header> = 32bit x 4\n\t\t\t" 1389 "<tlb header prefix> = 32bit x 4", 1390 .cmd = hmp_pcie_aer_inject_error, 1391 }, 1392 1393STEXI 1394@item pcie_aer_inject_error 1395@findex pcie_aer_inject_error 1396Inject PCIe AER error 1397ETEXI 1398 1399 { 1400 .name = "netdev_add", 1401 .args_type = "netdev:O", 1402 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1403 .help = "add host network device", 1404 .cmd = hmp_netdev_add, 1405 .command_completion = netdev_add_completion, 1406 }, 1407 1408STEXI 1409@item netdev_add 1410@findex netdev_add 1411Add host network device. 1412ETEXI 1413 1414 { 1415 .name = "netdev_del", 1416 .args_type = "id:s", 1417 .params = "id", 1418 .help = "remove host network device", 1419 .cmd = hmp_netdev_del, 1420 .command_completion = netdev_del_completion, 1421 }, 1422 1423STEXI 1424@item netdev_del 1425@findex netdev_del 1426Remove host network device. 1427ETEXI 1428 1429 { 1430 .name = "object_add", 1431 .args_type = "object:O", 1432 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1433 .help = "create QOM object", 1434 .cmd = hmp_object_add, 1435 .command_completion = object_add_completion, 1436 }, 1437 1438STEXI 1439@item object_add 1440@findex object_add 1441Create QOM object. 1442ETEXI 1443 1444 { 1445 .name = "object_del", 1446 .args_type = "id:s", 1447 .params = "id", 1448 .help = "destroy QOM object", 1449 .cmd = hmp_object_del, 1450 .command_completion = object_del_completion, 1451 }, 1452 1453STEXI 1454@item object_del 1455@findex object_del 1456Destroy QOM object. 1457ETEXI 1458 1459#ifdef CONFIG_SLIRP 1460 { 1461 .name = "hostfwd_add", 1462 .args_type = "arg1:s,arg2:s?,arg3:s?", 1463 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1464 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1465 .cmd = hmp_hostfwd_add, 1466 }, 1467#endif 1468STEXI 1469@item hostfwd_add 1470@findex hostfwd_add 1471Redirect TCP or UDP connections from host to guest (requires -net user). 1472ETEXI 1473 1474#ifdef CONFIG_SLIRP 1475 { 1476 .name = "hostfwd_remove", 1477 .args_type = "arg1:s,arg2:s?,arg3:s?", 1478 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport", 1479 .help = "remove host-to-guest TCP or UDP redirection", 1480 .cmd = hmp_hostfwd_remove, 1481 }, 1482 1483#endif 1484STEXI 1485@item hostfwd_remove 1486@findex hostfwd_remove 1487Remove host-to-guest TCP or UDP redirection. 1488ETEXI 1489 1490 { 1491 .name = "balloon", 1492 .args_type = "value:M", 1493 .params = "target", 1494 .help = "request VM to change its memory allocation (in MB)", 1495 .cmd = hmp_balloon, 1496 }, 1497 1498STEXI 1499@item balloon @var{value} 1500@findex balloon 1501Request VM to change its memory allocation to @var{value} (in MB). 1502ETEXI 1503 1504 { 1505 .name = "set_link", 1506 .args_type = "name:s,up:b", 1507 .params = "name on|off", 1508 .help = "change the link status of a network adapter", 1509 .cmd = hmp_set_link, 1510 .command_completion = set_link_completion, 1511 }, 1512 1513STEXI 1514@item set_link @var{name} [on|off] 1515@findex set_link 1516Switch link @var{name} on (i.e. up) or off (i.e. down). 1517ETEXI 1518 1519 { 1520 .name = "watchdog_action", 1521 .args_type = "action:s", 1522 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1523 .help = "change watchdog action", 1524 .cmd = hmp_watchdog_action, 1525 .command_completion = watchdog_action_completion, 1526 }, 1527 1528STEXI 1529@item watchdog_action 1530@findex watchdog_action 1531Change watchdog action. 1532ETEXI 1533 1534 { 1535 .name = "acl_show", 1536 .args_type = "aclname:s", 1537 .params = "aclname", 1538 .help = "list rules in the access control list", 1539 .cmd = hmp_acl_show, 1540 }, 1541 1542STEXI 1543@item acl_show @var{aclname} 1544@findex acl_show 1545List all the matching rules in the access control list, and the default 1546policy. There are currently two named access control lists, 1547@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1548certificate distinguished name, and SASL username respectively. 1549ETEXI 1550 1551 { 1552 .name = "acl_policy", 1553 .args_type = "aclname:s,policy:s", 1554 .params = "aclname allow|deny", 1555 .help = "set default access control list policy", 1556 .cmd = hmp_acl_policy, 1557 }, 1558 1559STEXI 1560@item acl_policy @var{aclname} @code{allow|deny} 1561@findex acl_policy 1562Set the default access control list policy, used in the event that 1563none of the explicit rules match. The default policy at startup is 1564always @code{deny}. 1565ETEXI 1566 1567 { 1568 .name = "acl_add", 1569 .args_type = "aclname:s,match:s,policy:s,index:i?", 1570 .params = "aclname match allow|deny [index]", 1571 .help = "add a match rule to the access control list", 1572 .cmd = hmp_acl_add, 1573 }, 1574 1575STEXI 1576@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1577@findex acl_add 1578Add a match rule to the access control list, allowing or denying access. 1579The match will normally be an exact username or x509 distinguished name, 1580but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1581allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1582normally be appended to the end of the ACL, but can be inserted 1583earlier in the list if the optional @var{index} parameter is supplied. 1584ETEXI 1585 1586 { 1587 .name = "acl_remove", 1588 .args_type = "aclname:s,match:s", 1589 .params = "aclname match", 1590 .help = "remove a match rule from the access control list", 1591 .cmd = hmp_acl_remove, 1592 }, 1593 1594STEXI 1595@item acl_remove @var{aclname} @var{match} 1596@findex acl_remove 1597Remove the specified match rule from the access control list. 1598ETEXI 1599 1600 { 1601 .name = "acl_reset", 1602 .args_type = "aclname:s", 1603 .params = "aclname", 1604 .help = "reset the access control list", 1605 .cmd = hmp_acl_reset, 1606 }, 1607 1608STEXI 1609@item acl_reset @var{aclname} 1610@findex acl_reset 1611Remove all matches from the access control list, and set the default 1612policy back to @code{deny}. 1613ETEXI 1614 1615 { 1616 .name = "nbd_server_start", 1617 .args_type = "all:-a,writable:-w,uri:s", 1618 .params = "nbd_server_start [-a] [-w] host:port", 1619 .help = "serve block devices on the given host and port", 1620 .cmd = hmp_nbd_server_start, 1621 }, 1622STEXI 1623@item nbd_server_start @var{host}:@var{port} 1624@findex nbd_server_start 1625Start an NBD server on the given host and/or port. If the @option{-a} 1626option is included, all of the virtual machine's block devices that 1627have an inserted media on them are automatically exported; in this case, 1628the @option{-w} option makes the devices writable too. 1629ETEXI 1630 1631 { 1632 .name = "nbd_server_add", 1633 .args_type = "writable:-w,device:B,name:s?", 1634 .params = "nbd_server_add [-w] device [name]", 1635 .help = "export a block device via NBD", 1636 .cmd = hmp_nbd_server_add, 1637 }, 1638STEXI 1639@item nbd_server_add @var{device} [ @var{name} ] 1640@findex nbd_server_add 1641Export a block device through QEMU's NBD server, which must be started 1642beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1643exported device writable too. The export name is controlled by @var{name}, 1644defaulting to @var{device}. 1645ETEXI 1646 1647 { 1648 .name = "nbd_server_remove", 1649 .args_type = "force:-f,name:s", 1650 .params = "nbd_server_remove [-f] name", 1651 .help = "remove an export previously exposed via NBD", 1652 .cmd = hmp_nbd_server_remove, 1653 }, 1654STEXI 1655@item nbd_server_remove [-f] @var{name} 1656@findex nbd_server_remove 1657Stop exporting a block device through QEMU's NBD server, which was 1658previously started with @command{nbd_server_add}. The @option{-f} 1659option forces the server to drop the export immediately even if 1660clients are connected; otherwise the command fails unless there are no 1661clients. 1662ETEXI 1663 1664 { 1665 .name = "nbd_server_stop", 1666 .args_type = "", 1667 .params = "nbd_server_stop", 1668 .help = "stop serving block devices using the NBD protocol", 1669 .cmd = hmp_nbd_server_stop, 1670 }, 1671STEXI 1672@item nbd_server_stop 1673@findex nbd_server_stop 1674Stop the QEMU embedded NBD server. 1675ETEXI 1676 1677 1678#if defined(TARGET_I386) 1679 1680 { 1681 .name = "mce", 1682 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1683 .params = "[-b] cpu bank status mcgstatus addr misc", 1684 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1685 .cmd = hmp_mce, 1686 }, 1687 1688#endif 1689STEXI 1690@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1691@findex mce (x86) 1692Inject an MCE on the given CPU (x86 only). 1693ETEXI 1694 1695 { 1696 .name = "getfd", 1697 .args_type = "fdname:s", 1698 .params = "getfd name", 1699 .help = "receive a file descriptor via SCM rights and assign it a name", 1700 .cmd = hmp_getfd, 1701 }, 1702 1703STEXI 1704@item getfd @var{fdname} 1705@findex getfd 1706If a file descriptor is passed alongside this command using the SCM_RIGHTS 1707mechanism on unix sockets, it is stored using the name @var{fdname} for 1708later use by other monitor commands. 1709ETEXI 1710 1711 { 1712 .name = "closefd", 1713 .args_type = "fdname:s", 1714 .params = "closefd name", 1715 .help = "close a file descriptor previously passed via SCM rights", 1716 .cmd = hmp_closefd, 1717 }, 1718 1719STEXI 1720@item closefd @var{fdname} 1721@findex closefd 1722Close the file descriptor previously assigned to @var{fdname} using the 1723@code{getfd} command. This is only needed if the file descriptor was never 1724used by another monitor command. 1725ETEXI 1726 1727 { 1728 .name = "block_passwd", 1729 .args_type = "device:B,password:s", 1730 .params = "block_passwd device password", 1731 .help = "set the password of encrypted block devices", 1732 .cmd = hmp_block_passwd, 1733 }, 1734 1735STEXI 1736@item block_passwd @var{device} @var{password} 1737@findex block_passwd 1738Set the encrypted device @var{device} password to @var{password} 1739 1740This command is now obsolete and will always return an error since 2.10 1741ETEXI 1742 1743 { 1744 .name = "block_set_io_throttle", 1745 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1746 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1747 .help = "change I/O throttle limits for a block drive", 1748 .cmd = hmp_block_set_io_throttle, 1749 }, 1750 1751STEXI 1752@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1753@findex block_set_io_throttle 1754Change 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}. 1755@var{device} can be a block device name, a qdev ID or a QOM path. 1756ETEXI 1757 1758 { 1759 .name = "set_password", 1760 .args_type = "protocol:s,password:s,connected:s?", 1761 .params = "protocol password action-if-connected", 1762 .help = "set spice/vnc password", 1763 .cmd = hmp_set_password, 1764 }, 1765 1766STEXI 1767@item set_password [ vnc | spice ] password [ action-if-connected ] 1768@findex set_password 1769Change spice/vnc password. Use zero to make the password stay valid 1770forever. @var{action-if-connected} specifies what should happen in 1771case a connection is established: @var{fail} makes the password change 1772fail. @var{disconnect} changes the password and disconnects the 1773client. @var{keep} changes the password and keeps the connection up. 1774@var{keep} is the default. 1775ETEXI 1776 1777 { 1778 .name = "expire_password", 1779 .args_type = "protocol:s,time:s", 1780 .params = "protocol time", 1781 .help = "set spice/vnc password expire-time", 1782 .cmd = hmp_expire_password, 1783 }, 1784 1785STEXI 1786@item expire_password [ vnc | spice ] expire-time 1787@findex expire_password 1788Specify when a password for spice/vnc becomes 1789invalid. @var{expire-time} accepts: 1790 1791@table @var 1792@item now 1793Invalidate password instantly. 1794 1795@item never 1796Password stays valid forever. 1797 1798@item +nsec 1799Password stays valid for @var{nsec} seconds starting now. 1800 1801@item nsec 1802Password is invalidated at the given time. @var{nsec} are the seconds 1803passed since 1970, i.e. unix epoch. 1804 1805@end table 1806ETEXI 1807 1808 { 1809 .name = "chardev-add", 1810 .args_type = "args:s", 1811 .params = "args", 1812 .help = "add chardev", 1813 .cmd = hmp_chardev_add, 1814 .command_completion = chardev_add_completion, 1815 }, 1816 1817STEXI 1818@item chardev-add args 1819@findex chardev-add 1820chardev-add accepts the same parameters as the -chardev command line switch. 1821 1822ETEXI 1823 1824 { 1825 .name = "chardev-change", 1826 .args_type = "id:s,args:s", 1827 .params = "id args", 1828 .help = "change chardev", 1829 .cmd = hmp_chardev_change, 1830 }, 1831 1832STEXI 1833@item chardev-change args 1834@findex chardev-change 1835chardev-change accepts existing chardev @var{id} and then the same arguments 1836as the -chardev command line switch (except for "id"). 1837 1838ETEXI 1839 1840 { 1841 .name = "chardev-remove", 1842 .args_type = "id:s", 1843 .params = "id", 1844 .help = "remove chardev", 1845 .cmd = hmp_chardev_remove, 1846 .command_completion = chardev_remove_completion, 1847 }, 1848 1849STEXI 1850@item chardev-remove id 1851@findex chardev-remove 1852Removes the chardev @var{id}. 1853 1854ETEXI 1855 1856 { 1857 .name = "chardev-send-break", 1858 .args_type = "id:s", 1859 .params = "id", 1860 .help = "send a break on chardev", 1861 .cmd = hmp_chardev_send_break, 1862 .command_completion = chardev_remove_completion, 1863 }, 1864 1865STEXI 1866@item chardev-send-break id 1867@findex chardev-send-break 1868Send a break on the chardev @var{id}. 1869 1870ETEXI 1871 1872 { 1873 .name = "qemu-io", 1874 .args_type = "device:B,command:s", 1875 .params = "[device] \"[command]\"", 1876 .help = "run a qemu-io command on a block device", 1877 .cmd = hmp_qemu_io, 1878 }, 1879 1880STEXI 1881@item qemu-io @var{device} @var{command} 1882@findex qemu-io 1883Executes a qemu-io command on the given block device. 1884 1885ETEXI 1886 1887 { 1888 .name = "cpu-add", 1889 .args_type = "id:i", 1890 .params = "id", 1891 .help = "add cpu (deprecated, use device_add instead)", 1892 .cmd = hmp_cpu_add, 1893 }, 1894 1895STEXI 1896@item cpu-add @var{id} 1897@findex cpu-add 1898Add CPU with id @var{id}. This command is deprecated, please 1899+use @code{device_add} instead. For details, refer to 1900'docs/cpu-hotplug.rst'. 1901ETEXI 1902 1903 { 1904 .name = "qom-list", 1905 .args_type = "path:s?", 1906 .params = "path", 1907 .help = "list QOM properties", 1908 .cmd = hmp_qom_list, 1909 .flags = "p", 1910 }, 1911 1912STEXI 1913@item qom-list [@var{path}] 1914Print QOM properties of object at location @var{path} 1915ETEXI 1916 1917 { 1918 .name = "qom-set", 1919 .args_type = "path:s,property:s,value:s", 1920 .params = "path property value", 1921 .help = "set QOM property", 1922 .cmd = hmp_qom_set, 1923 .flags = "p", 1924 }, 1925 1926STEXI 1927@item qom-set @var{path} @var{property} @var{value} 1928Set QOM property @var{property} of object at location @var{path} to value @var{value} 1929ETEXI 1930 1931 { 1932 .name = "info", 1933 .args_type = "item:s?", 1934 .params = "[subcommand]", 1935 .help = "show various information about the system state", 1936 .cmd = hmp_info_help, 1937 .sub_table = info_cmds, 1938 .flags = "p", 1939 }, 1940 1941STEXI 1942@end table 1943ETEXI 1944