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,audiodev:s,freq:i?,bits:i?,nchannels:i?", 823 .params = "path audiodev [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{audiodev} [@var{frequency} [@var{bits} [@var{channels}]]] 829@findex wavcapture 830Capture audio into @var{filename} from @var{audiodev}, using sample rate 831@var{frequency} bits per sample @var{bits} and number of channels 832@var{channels}. 833 834Defaults: 835@itemize @minus 836@item Sample rate = 44100 Hz - CD quality 837@item Bits = 16 838@item Number of channels = 2 - Stereo 839@end itemize 840ETEXI 841 842 { 843 .name = "stopcapture", 844 .args_type = "n:i", 845 .params = "capture index", 846 .help = "stop capture", 847 .cmd = hmp_stopcapture, 848 }, 849STEXI 850@item stopcapture @var{index} 851@findex stopcapture 852Stop capture with a given @var{index}, index can be obtained with 853@example 854info capture 855@end example 856ETEXI 857 858 { 859 .name = "memsave", 860 .args_type = "val:l,size:i,filename:s", 861 .params = "addr size file", 862 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 863 .cmd = hmp_memsave, 864 }, 865 866STEXI 867@item memsave @var{addr} @var{size} @var{file} 868@findex memsave 869save to disk virtual memory dump starting at @var{addr} of size @var{size}. 870ETEXI 871 872 { 873 .name = "pmemsave", 874 .args_type = "val:l,size:i,filename:s", 875 .params = "addr size file", 876 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 877 .cmd = hmp_pmemsave, 878 }, 879 880STEXI 881@item pmemsave @var{addr} @var{size} @var{file} 882@findex pmemsave 883save to disk physical memory dump starting at @var{addr} of size @var{size}. 884ETEXI 885 886 { 887 .name = "boot_set", 888 .args_type = "bootdevice:s", 889 .params = "bootdevice", 890 .help = "define new values for the boot device list", 891 .cmd = hmp_boot_set, 892 }, 893 894STEXI 895@item boot_set @var{bootdevicelist} 896@findex boot_set 897Define new values for the boot device list. Those values will override 898the values specified on the command line through the @code{-boot} option. 899 900The values that can be specified here depend on the machine type, but are 901the same that can be specified in the @code{-boot} command line option. 902ETEXI 903 904 { 905 .name = "nmi", 906 .args_type = "", 907 .params = "", 908 .help = "inject an NMI", 909 .cmd = hmp_nmi, 910 }, 911STEXI 912@item nmi @var{cpu} 913@findex nmi 914Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). 915 916ETEXI 917 918 { 919 .name = "ringbuf_write", 920 .args_type = "device:s,data:s", 921 .params = "device data", 922 .help = "Write to a ring buffer character device", 923 .cmd = hmp_ringbuf_write, 924 .command_completion = ringbuf_write_completion, 925 }, 926 927STEXI 928@item ringbuf_write @var{device} @var{data} 929@findex ringbuf_write 930Write @var{data} to ring buffer character device @var{device}. 931@var{data} must be a UTF-8 string. 932 933ETEXI 934 935 { 936 .name = "ringbuf_read", 937 .args_type = "device:s,size:i", 938 .params = "device size", 939 .help = "Read from a ring buffer character device", 940 .cmd = hmp_ringbuf_read, 941 .command_completion = ringbuf_write_completion, 942 }, 943 944STEXI 945@item ringbuf_read @var{device} 946@findex ringbuf_read 947Read and print up to @var{size} bytes from ring buffer character 948device @var{device}. 949Certain non-printable characters are printed \uXXXX, where XXXX is the 950character code in hexadecimal. Character \ is printed \\. 951Bug: can screw up when the buffer contains invalid UTF-8 sequences, 952NUL characters, after the ring buffer lost data, and when reading 953stops because the size limit is reached. 954 955ETEXI 956 957 { 958 .name = "announce_self", 959 .args_type = "interfaces:s?,id:s?", 960 .params = "[interfaces] [id]", 961 .help = "Trigger GARP/RARP announcements", 962 .cmd = hmp_announce_self, 963 }, 964 965STEXI 966@item announce_self 967@findex announce_self 968Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating the 969network infrastructure after a reconfiguration or some forms of migration. 970The timings of the round are set by the migration announce parameters. 971An optional comma separated @var{interfaces} list restricts the announce to the 972named set of interfaces. An optional @var{id} can be used to start a separate announce 973timer and to change the parameters of it later. 974ETEXI 975 976 { 977 .name = "migrate", 978 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s", 979 .params = "[-d] [-b] [-i] [-r] uri", 980 .help = "migrate to URI (using -d to not wait for completion)" 981 "\n\t\t\t -b for migration without shared storage with" 982 " full copy of disk\n\t\t\t -i for migration without " 983 "shared storage with incremental copy of disk " 984 "(base image shared between src and destination)" 985 "\n\t\t\t -r to resume a paused migration", 986 .cmd = hmp_migrate, 987 }, 988 989 990STEXI 991@item migrate [-d] [-b] [-i] @var{uri} 992@findex migrate 993Migrate to @var{uri} (using -d to not wait for completion). 994 -b for migration with full copy of disk 995 -i for migration with incremental copy of disk (base image is shared) 996ETEXI 997 998 { 999 .name = "migrate_cancel", 1000 .args_type = "", 1001 .params = "", 1002 .help = "cancel the current VM migration", 1003 .cmd = hmp_migrate_cancel, 1004 }, 1005 1006STEXI 1007@item migrate_cancel 1008@findex migrate_cancel 1009Cancel the current VM migration. 1010ETEXI 1011 1012 { 1013 .name = "migrate_continue", 1014 .args_type = "state:s", 1015 .params = "state", 1016 .help = "Continue migration from the given paused state", 1017 .cmd = hmp_migrate_continue, 1018 }, 1019STEXI 1020@item migrate_continue @var{state} 1021@findex migrate_continue 1022Continue migration from the paused state @var{state} 1023ETEXI 1024 1025 { 1026 .name = "migrate_incoming", 1027 .args_type = "uri:s", 1028 .params = "uri", 1029 .help = "Continue an incoming migration from an -incoming defer", 1030 .cmd = hmp_migrate_incoming, 1031 }, 1032 1033STEXI 1034@item migrate_incoming @var{uri} 1035@findex migrate_incoming 1036Continue an incoming migration using the @var{uri} (that has the same syntax 1037as the -incoming option). 1038ETEXI 1039 1040 { 1041 .name = "migrate_recover", 1042 .args_type = "uri:s", 1043 .params = "uri", 1044 .help = "Continue a paused incoming postcopy migration", 1045 .cmd = hmp_migrate_recover, 1046 }, 1047 1048STEXI 1049@item migrate_recover @var{uri} 1050@findex migrate_recover 1051Continue a paused incoming postcopy migration using the @var{uri}. 1052ETEXI 1053 1054 { 1055 .name = "migrate_pause", 1056 .args_type = "", 1057 .params = "", 1058 .help = "Pause an ongoing migration (postcopy-only)", 1059 .cmd = hmp_migrate_pause, 1060 }, 1061 1062STEXI 1063@item migrate_pause 1064@findex migrate_pause 1065Pause an ongoing migration. Currently it only supports postcopy. 1066ETEXI 1067 1068 { 1069 .name = "migrate_set_cache_size", 1070 .args_type = "value:o", 1071 .params = "value", 1072 .help = "set cache size (in bytes) for XBZRLE migrations," 1073 "the cache size will be rounded down to the nearest " 1074 "power of 2.\n" 1075 "The cache size affects the number of cache misses." 1076 "In case of a high cache miss ratio you need to increase" 1077 " the cache size", 1078 .cmd = hmp_migrate_set_cache_size, 1079 }, 1080 1081STEXI 1082@item migrate_set_cache_size @var{value} 1083@findex migrate_set_cache_size 1084Set cache size to @var{value} (in bytes) for xbzrle migrations. 1085ETEXI 1086 1087 { 1088 .name = "migrate_set_speed", 1089 .args_type = "value:o", 1090 .params = "value", 1091 .help = "set maximum speed (in bytes) for migrations. " 1092 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 1093 .cmd = hmp_migrate_set_speed, 1094 }, 1095 1096STEXI 1097@item migrate_set_speed @var{value} 1098@findex migrate_set_speed 1099Set maximum speed to @var{value} (in bytes) for migrations. 1100ETEXI 1101 1102 { 1103 .name = "migrate_set_downtime", 1104 .args_type = "value:T", 1105 .params = "value", 1106 .help = "set maximum tolerated downtime (in seconds) for migrations", 1107 .cmd = hmp_migrate_set_downtime, 1108 }, 1109 1110STEXI 1111@item migrate_set_downtime @var{second} 1112@findex migrate_set_downtime 1113Set maximum tolerated downtime (in seconds) for migration. 1114ETEXI 1115 1116 { 1117 .name = "migrate_set_capability", 1118 .args_type = "capability:s,state:b", 1119 .params = "capability state", 1120 .help = "Enable/Disable the usage of a capability for migration", 1121 .cmd = hmp_migrate_set_capability, 1122 .command_completion = migrate_set_capability_completion, 1123 }, 1124 1125STEXI 1126@item migrate_set_capability @var{capability} @var{state} 1127@findex migrate_set_capability 1128Enable/Disable the usage of a capability @var{capability} for migration. 1129ETEXI 1130 1131 { 1132 .name = "migrate_set_parameter", 1133 .args_type = "parameter:s,value:s", 1134 .params = "parameter value", 1135 .help = "Set the parameter for migration", 1136 .cmd = hmp_migrate_set_parameter, 1137 .command_completion = migrate_set_parameter_completion, 1138 }, 1139 1140STEXI 1141@item migrate_set_parameter @var{parameter} @var{value} 1142@findex migrate_set_parameter 1143Set the parameter @var{parameter} for migration. 1144ETEXI 1145 1146 { 1147 .name = "migrate_start_postcopy", 1148 .args_type = "", 1149 .params = "", 1150 .help = "Followup to a migration command to switch the migration" 1151 " to postcopy mode. The postcopy-ram capability must " 1152 "be set on both source and destination before the " 1153 "original migration command .", 1154 .cmd = hmp_migrate_start_postcopy, 1155 }, 1156 1157STEXI 1158@item migrate_start_postcopy 1159@findex migrate_start_postcopy 1160Switch in-progress migration to postcopy mode. Ignored after the end of 1161migration (or once already in postcopy). 1162ETEXI 1163 1164 { 1165 .name = "x_colo_lost_heartbeat", 1166 .args_type = "", 1167 .params = "", 1168 .help = "Tell COLO that heartbeat is lost,\n\t\t\t" 1169 "a failover or takeover is needed.", 1170 .cmd = hmp_x_colo_lost_heartbeat, 1171 }, 1172 1173STEXI 1174@item x_colo_lost_heartbeat 1175@findex x_colo_lost_heartbeat 1176Tell COLO that heartbeat is lost, a failover or takeover is needed. 1177ETEXI 1178 1179 { 1180 .name = "client_migrate_info", 1181 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1182 .params = "protocol hostname port tls-port cert-subject", 1183 .help = "set migration information for remote display", 1184 .cmd = hmp_client_migrate_info, 1185 }, 1186 1187STEXI 1188@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1189@findex client_migrate_info 1190Set migration information for remote display. This makes the server 1191ask the client to automatically reconnect using the new parameters 1192once migration finished successfully. Only implemented for SPICE. 1193ETEXI 1194 1195 { 1196 .name = "dump-guest-memory", 1197 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?", 1198 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]", 1199 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1200 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1201 "-d: return immediately (do not wait for completion).\n\t\t\t" 1202 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1203 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1204 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1205 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t" 1206 " for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t" 1207 "begin: the starting physical address.\n\t\t\t" 1208 "length: the memory size, in bytes.", 1209 .cmd = hmp_dump_guest_memory, 1210 }, 1211 1212STEXI 1213@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1214@item dump-guest-memory [-z|-l|-s|-w] @var{filename} 1215@findex dump-guest-memory 1216Dump guest memory to @var{protocol}. The file can be processed with crash or 1217gdb. Without -z|-l|-s|-w, the dump format is ELF. 1218 -p: do paging to get guest's memory mapping. 1219 -z: dump in kdump-compressed format, with zlib compression. 1220 -l: dump in kdump-compressed format, with lzo compression. 1221 -s: dump in kdump-compressed format, with snappy compression. 1222 -w: dump in Windows crashdump format (can be used instead of ELF-dump converting), 1223 for Windows x64 guests with vmcoreinfo driver only 1224 filename: dump file name. 1225 begin: the starting physical address. It's optional, and should be 1226 specified together with length. 1227 length: the memory size, in bytes. It's optional, and should be specified 1228 together with begin. 1229ETEXI 1230 1231#if defined(TARGET_S390X) 1232 { 1233 .name = "dump-skeys", 1234 .args_type = "filename:F", 1235 .params = "", 1236 .help = "Save guest storage keys into file 'filename'.\n", 1237 .cmd = hmp_dump_skeys, 1238 }, 1239#endif 1240 1241STEXI 1242@item dump-skeys @var{filename} 1243@findex dump-skeys 1244Save guest storage keys to a file. 1245ETEXI 1246 1247#if defined(TARGET_S390X) 1248 { 1249 .name = "migration_mode", 1250 .args_type = "mode:i", 1251 .params = "mode", 1252 .help = "Enables or disables migration mode\n", 1253 .cmd = hmp_migrationmode, 1254 }, 1255#endif 1256 1257STEXI 1258@item migration_mode @var{mode} 1259@findex migration_mode 1260Enables or disables migration mode. 1261ETEXI 1262 1263 { 1264 .name = "snapshot_blkdev", 1265 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1266 .params = "[-n] device [new-image-file] [format]", 1267 .help = "initiates a live snapshot\n\t\t\t" 1268 "of device. If a new image file is specified, the\n\t\t\t" 1269 "new image file will become the new root image.\n\t\t\t" 1270 "If format is specified, the snapshot file will\n\t\t\t" 1271 "be created in that format.\n\t\t\t" 1272 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1273 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1274 "recreating it from scratch.", 1275 .cmd = hmp_snapshot_blkdev, 1276 }, 1277 1278STEXI 1279@item snapshot_blkdev 1280@findex snapshot_blkdev 1281Snapshot device, using snapshot file as target if provided 1282ETEXI 1283 1284 { 1285 .name = "snapshot_blkdev_internal", 1286 .args_type = "device:B,name:s", 1287 .params = "device name", 1288 .help = "take an internal snapshot of device.\n\t\t\t" 1289 "The format of the image used by device must\n\t\t\t" 1290 "support it, such as qcow2.\n\t\t\t", 1291 .cmd = hmp_snapshot_blkdev_internal, 1292 }, 1293 1294STEXI 1295@item snapshot_blkdev_internal 1296@findex snapshot_blkdev_internal 1297Take an internal snapshot on device if it support 1298ETEXI 1299 1300 { 1301 .name = "snapshot_delete_blkdev_internal", 1302 .args_type = "device:B,name:s,id:s?", 1303 .params = "device name [id]", 1304 .help = "delete an internal snapshot of device.\n\t\t\t" 1305 "If id is specified, qemu will try delete\n\t\t\t" 1306 "the snapshot matching both id and name.\n\t\t\t" 1307 "The format of the image used by device must\n\t\t\t" 1308 "support it, such as qcow2.\n\t\t\t", 1309 .cmd = hmp_snapshot_delete_blkdev_internal, 1310 }, 1311 1312STEXI 1313@item snapshot_delete_blkdev_internal 1314@findex snapshot_delete_blkdev_internal 1315Delete an internal snapshot on device if it support 1316ETEXI 1317 1318 { 1319 .name = "drive_mirror", 1320 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1321 .params = "[-n] [-f] device target [format]", 1322 .help = "initiates live storage\n\t\t\t" 1323 "migration for a device. The device's contents are\n\t\t\t" 1324 "copied to the new image file, including data that\n\t\t\t" 1325 "is written after the command is started.\n\t\t\t" 1326 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1327 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1328 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1329 "so that the result does not need a backing file.\n\t\t\t", 1330 .cmd = hmp_drive_mirror, 1331 }, 1332STEXI 1333@item drive_mirror 1334@findex drive_mirror 1335Start mirroring a block device's writes to a new destination, 1336using the specified target. 1337ETEXI 1338 1339 { 1340 .name = "drive_backup", 1341 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?", 1342 .params = "[-n] [-f] [-c] device target [format]", 1343 .help = "initiates a point-in-time\n\t\t\t" 1344 "copy for a device. The device's contents are\n\t\t\t" 1345 "copied to the new image file, excluding data that\n\t\t\t" 1346 "is written after the command is started.\n\t\t\t" 1347 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1348 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1349 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1350 "so that the result does not need a backing file.\n\t\t\t" 1351 "The -c flag requests QEMU to compress backup data\n\t\t\t" 1352 "(if the target format supports it).\n\t\t\t", 1353 .cmd = hmp_drive_backup, 1354 }, 1355STEXI 1356@item drive_backup 1357@findex drive_backup 1358Start a point-in-time copy of a block device to a specificed target. 1359ETEXI 1360 1361 { 1362 .name = "drive_add", 1363 .args_type = "node:-n,pci_addr:s,opts:s", 1364 .params = "[-n] [[<domain>:]<bus>:]<slot>\n" 1365 "[file=file][,if=type][,bus=n]\n" 1366 "[,unit=m][,media=d][,index=i]\n" 1367 "[,snapshot=on|off][,cache=on|off]\n" 1368 "[,readonly=on|off][,copy-on-read=on|off]", 1369 .help = "add drive to PCI storage controller", 1370 .cmd = hmp_drive_add, 1371 }, 1372 1373STEXI 1374@item drive_add 1375@findex drive_add 1376Add drive to PCI storage controller. 1377ETEXI 1378 1379 { 1380 .name = "pcie_aer_inject_error", 1381 .args_type = "advisory_non_fatal:-a,correctable:-c," 1382 "id:s,error_status:s," 1383 "header0:i?,header1:i?,header2:i?,header3:i?," 1384 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1385 .params = "[-a] [-c] id " 1386 "<error_status> [<tlp header> [<tlp header prefix>]]", 1387 .help = "inject pcie aer error\n\t\t\t" 1388 " -a for advisory non fatal error\n\t\t\t" 1389 " -c for correctable error\n\t\t\t" 1390 "<id> = qdev device id\n\t\t\t" 1391 "<error_status> = error string or 32bit\n\t\t\t" 1392 "<tlb header> = 32bit x 4\n\t\t\t" 1393 "<tlb header prefix> = 32bit x 4", 1394 .cmd = hmp_pcie_aer_inject_error, 1395 }, 1396 1397STEXI 1398@item pcie_aer_inject_error 1399@findex pcie_aer_inject_error 1400Inject PCIe AER error 1401ETEXI 1402 1403 { 1404 .name = "netdev_add", 1405 .args_type = "netdev:O", 1406 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1407 .help = "add host network device", 1408 .cmd = hmp_netdev_add, 1409 .command_completion = netdev_add_completion, 1410 }, 1411 1412STEXI 1413@item netdev_add 1414@findex netdev_add 1415Add host network device. 1416ETEXI 1417 1418 { 1419 .name = "netdev_del", 1420 .args_type = "id:s", 1421 .params = "id", 1422 .help = "remove host network device", 1423 .cmd = hmp_netdev_del, 1424 .command_completion = netdev_del_completion, 1425 }, 1426 1427STEXI 1428@item netdev_del 1429@findex netdev_del 1430Remove host network device. 1431ETEXI 1432 1433 { 1434 .name = "object_add", 1435 .args_type = "object:O", 1436 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1437 .help = "create QOM object", 1438 .cmd = hmp_object_add, 1439 .command_completion = object_add_completion, 1440 }, 1441 1442STEXI 1443@item object_add 1444@findex object_add 1445Create QOM object. 1446ETEXI 1447 1448 { 1449 .name = "object_del", 1450 .args_type = "id:s", 1451 .params = "id", 1452 .help = "destroy QOM object", 1453 .cmd = hmp_object_del, 1454 .command_completion = object_del_completion, 1455 }, 1456 1457STEXI 1458@item object_del 1459@findex object_del 1460Destroy QOM object. 1461ETEXI 1462 1463#ifdef CONFIG_SLIRP 1464 { 1465 .name = "hostfwd_add", 1466 .args_type = "arg1:s,arg2:s?,arg3:s?", 1467 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1468 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1469 .cmd = hmp_hostfwd_add, 1470 }, 1471#endif 1472STEXI 1473@item hostfwd_add 1474@findex hostfwd_add 1475Redirect TCP or UDP connections from host to guest (requires -net user). 1476ETEXI 1477 1478#ifdef CONFIG_SLIRP 1479 { 1480 .name = "hostfwd_remove", 1481 .args_type = "arg1:s,arg2:s?,arg3:s?", 1482 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport", 1483 .help = "remove host-to-guest TCP or UDP redirection", 1484 .cmd = hmp_hostfwd_remove, 1485 }, 1486 1487#endif 1488STEXI 1489@item hostfwd_remove 1490@findex hostfwd_remove 1491Remove host-to-guest TCP or UDP redirection. 1492ETEXI 1493 1494 { 1495 .name = "balloon", 1496 .args_type = "value:M", 1497 .params = "target", 1498 .help = "request VM to change its memory allocation (in MB)", 1499 .cmd = hmp_balloon, 1500 }, 1501 1502STEXI 1503@item balloon @var{value} 1504@findex balloon 1505Request VM to change its memory allocation to @var{value} (in MB). 1506ETEXI 1507 1508 { 1509 .name = "set_link", 1510 .args_type = "name:s,up:b", 1511 .params = "name on|off", 1512 .help = "change the link status of a network adapter", 1513 .cmd = hmp_set_link, 1514 .command_completion = set_link_completion, 1515 }, 1516 1517STEXI 1518@item set_link @var{name} [on|off] 1519@findex set_link 1520Switch link @var{name} on (i.e. up) or off (i.e. down). 1521ETEXI 1522 1523 { 1524 .name = "watchdog_action", 1525 .args_type = "action:s", 1526 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1527 .help = "change watchdog action", 1528 .cmd = hmp_watchdog_action, 1529 .command_completion = watchdog_action_completion, 1530 }, 1531 1532STEXI 1533@item watchdog_action 1534@findex watchdog_action 1535Change watchdog action. 1536ETEXI 1537 1538 { 1539 .name = "acl_show", 1540 .args_type = "aclname:s", 1541 .params = "aclname", 1542 .help = "list rules in the access control list", 1543 .cmd = hmp_acl_show, 1544 }, 1545 1546STEXI 1547@item acl_show @var{aclname} 1548@findex acl_show 1549List all the matching rules in the access control list, and the default 1550policy. There are currently two named access control lists, 1551@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1552certificate distinguished name, and SASL username respectively. 1553ETEXI 1554 1555 { 1556 .name = "acl_policy", 1557 .args_type = "aclname:s,policy:s", 1558 .params = "aclname allow|deny", 1559 .help = "set default access control list policy", 1560 .cmd = hmp_acl_policy, 1561 }, 1562 1563STEXI 1564@item acl_policy @var{aclname} @code{allow|deny} 1565@findex acl_policy 1566Set the default access control list policy, used in the event that 1567none of the explicit rules match. The default policy at startup is 1568always @code{deny}. 1569ETEXI 1570 1571 { 1572 .name = "acl_add", 1573 .args_type = "aclname:s,match:s,policy:s,index:i?", 1574 .params = "aclname match allow|deny [index]", 1575 .help = "add a match rule to the access control list", 1576 .cmd = hmp_acl_add, 1577 }, 1578 1579STEXI 1580@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1581@findex acl_add 1582Add a match rule to the access control list, allowing or denying access. 1583The match will normally be an exact username or x509 distinguished name, 1584but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1585allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1586normally be appended to the end of the ACL, but can be inserted 1587earlier in the list if the optional @var{index} parameter is supplied. 1588ETEXI 1589 1590 { 1591 .name = "acl_remove", 1592 .args_type = "aclname:s,match:s", 1593 .params = "aclname match", 1594 .help = "remove a match rule from the access control list", 1595 .cmd = hmp_acl_remove, 1596 }, 1597 1598STEXI 1599@item acl_remove @var{aclname} @var{match} 1600@findex acl_remove 1601Remove the specified match rule from the access control list. 1602ETEXI 1603 1604 { 1605 .name = "acl_reset", 1606 .args_type = "aclname:s", 1607 .params = "aclname", 1608 .help = "reset the access control list", 1609 .cmd = hmp_acl_reset, 1610 }, 1611 1612STEXI 1613@item acl_reset @var{aclname} 1614@findex acl_reset 1615Remove all matches from the access control list, and set the default 1616policy back to @code{deny}. 1617ETEXI 1618 1619 { 1620 .name = "nbd_server_start", 1621 .args_type = "all:-a,writable:-w,uri:s", 1622 .params = "nbd_server_start [-a] [-w] host:port", 1623 .help = "serve block devices on the given host and port", 1624 .cmd = hmp_nbd_server_start, 1625 }, 1626STEXI 1627@item nbd_server_start @var{host}:@var{port} 1628@findex nbd_server_start 1629Start an NBD server on the given host and/or port. If the @option{-a} 1630option is included, all of the virtual machine's block devices that 1631have an inserted media on them are automatically exported; in this case, 1632the @option{-w} option makes the devices writable too. 1633ETEXI 1634 1635 { 1636 .name = "nbd_server_add", 1637 .args_type = "writable:-w,device:B,name:s?", 1638 .params = "nbd_server_add [-w] device [name]", 1639 .help = "export a block device via NBD", 1640 .cmd = hmp_nbd_server_add, 1641 }, 1642STEXI 1643@item nbd_server_add @var{device} [ @var{name} ] 1644@findex nbd_server_add 1645Export a block device through QEMU's NBD server, which must be started 1646beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1647exported device writable too. The export name is controlled by @var{name}, 1648defaulting to @var{device}. 1649ETEXI 1650 1651 { 1652 .name = "nbd_server_remove", 1653 .args_type = "force:-f,name:s", 1654 .params = "nbd_server_remove [-f] name", 1655 .help = "remove an export previously exposed via NBD", 1656 .cmd = hmp_nbd_server_remove, 1657 }, 1658STEXI 1659@item nbd_server_remove [-f] @var{name} 1660@findex nbd_server_remove 1661Stop exporting a block device through QEMU's NBD server, which was 1662previously started with @command{nbd_server_add}. The @option{-f} 1663option forces the server to drop the export immediately even if 1664clients are connected; otherwise the command fails unless there are no 1665clients. 1666ETEXI 1667 1668 { 1669 .name = "nbd_server_stop", 1670 .args_type = "", 1671 .params = "nbd_server_stop", 1672 .help = "stop serving block devices using the NBD protocol", 1673 .cmd = hmp_nbd_server_stop, 1674 }, 1675STEXI 1676@item nbd_server_stop 1677@findex nbd_server_stop 1678Stop the QEMU embedded NBD server. 1679ETEXI 1680 1681 1682#if defined(TARGET_I386) 1683 1684 { 1685 .name = "mce", 1686 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1687 .params = "[-b] cpu bank status mcgstatus addr misc", 1688 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1689 .cmd = hmp_mce, 1690 }, 1691 1692#endif 1693STEXI 1694@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1695@findex mce (x86) 1696Inject an MCE on the given CPU (x86 only). 1697ETEXI 1698 1699 { 1700 .name = "getfd", 1701 .args_type = "fdname:s", 1702 .params = "getfd name", 1703 .help = "receive a file descriptor via SCM rights and assign it a name", 1704 .cmd = hmp_getfd, 1705 }, 1706 1707STEXI 1708@item getfd @var{fdname} 1709@findex getfd 1710If a file descriptor is passed alongside this command using the SCM_RIGHTS 1711mechanism on unix sockets, it is stored using the name @var{fdname} for 1712later use by other monitor commands. 1713ETEXI 1714 1715 { 1716 .name = "closefd", 1717 .args_type = "fdname:s", 1718 .params = "closefd name", 1719 .help = "close a file descriptor previously passed via SCM rights", 1720 .cmd = hmp_closefd, 1721 }, 1722 1723STEXI 1724@item closefd @var{fdname} 1725@findex closefd 1726Close the file descriptor previously assigned to @var{fdname} using the 1727@code{getfd} command. This is only needed if the file descriptor was never 1728used by another monitor command. 1729ETEXI 1730 1731 { 1732 .name = "block_passwd", 1733 .args_type = "device:B,password:s", 1734 .params = "block_passwd device password", 1735 .help = "set the password of encrypted block devices", 1736 .cmd = hmp_block_passwd, 1737 }, 1738 1739STEXI 1740@item block_passwd @var{device} @var{password} 1741@findex block_passwd 1742Set the encrypted device @var{device} password to @var{password} 1743 1744This command is now obsolete and will always return an error since 2.10 1745ETEXI 1746 1747 { 1748 .name = "block_set_io_throttle", 1749 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1750 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1751 .help = "change I/O throttle limits for a block drive", 1752 .cmd = hmp_block_set_io_throttle, 1753 }, 1754 1755STEXI 1756@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1757@findex block_set_io_throttle 1758Change 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}. 1759@var{device} can be a block device name, a qdev ID or a QOM path. 1760ETEXI 1761 1762 { 1763 .name = "set_password", 1764 .args_type = "protocol:s,password:s,connected:s?", 1765 .params = "protocol password action-if-connected", 1766 .help = "set spice/vnc password", 1767 .cmd = hmp_set_password, 1768 }, 1769 1770STEXI 1771@item set_password [ vnc | spice ] password [ action-if-connected ] 1772@findex set_password 1773Change spice/vnc password. Use zero to make the password stay valid 1774forever. @var{action-if-connected} specifies what should happen in 1775case a connection is established: @var{fail} makes the password change 1776fail. @var{disconnect} changes the password and disconnects the 1777client. @var{keep} changes the password and keeps the connection up. 1778@var{keep} is the default. 1779ETEXI 1780 1781 { 1782 .name = "expire_password", 1783 .args_type = "protocol:s,time:s", 1784 .params = "protocol time", 1785 .help = "set spice/vnc password expire-time", 1786 .cmd = hmp_expire_password, 1787 }, 1788 1789STEXI 1790@item expire_password [ vnc | spice ] expire-time 1791@findex expire_password 1792Specify when a password for spice/vnc becomes 1793invalid. @var{expire-time} accepts: 1794 1795@table @var 1796@item now 1797Invalidate password instantly. 1798 1799@item never 1800Password stays valid forever. 1801 1802@item +nsec 1803Password stays valid for @var{nsec} seconds starting now. 1804 1805@item nsec 1806Password is invalidated at the given time. @var{nsec} are the seconds 1807passed since 1970, i.e. unix epoch. 1808 1809@end table 1810ETEXI 1811 1812 { 1813 .name = "chardev-add", 1814 .args_type = "args:s", 1815 .params = "args", 1816 .help = "add chardev", 1817 .cmd = hmp_chardev_add, 1818 .command_completion = chardev_add_completion, 1819 }, 1820 1821STEXI 1822@item chardev-add args 1823@findex chardev-add 1824chardev-add accepts the same parameters as the -chardev command line switch. 1825 1826ETEXI 1827 1828 { 1829 .name = "chardev-change", 1830 .args_type = "id:s,args:s", 1831 .params = "id args", 1832 .help = "change chardev", 1833 .cmd = hmp_chardev_change, 1834 }, 1835 1836STEXI 1837@item chardev-change args 1838@findex chardev-change 1839chardev-change accepts existing chardev @var{id} and then the same arguments 1840as the -chardev command line switch (except for "id"). 1841 1842ETEXI 1843 1844 { 1845 .name = "chardev-remove", 1846 .args_type = "id:s", 1847 .params = "id", 1848 .help = "remove chardev", 1849 .cmd = hmp_chardev_remove, 1850 .command_completion = chardev_remove_completion, 1851 }, 1852 1853STEXI 1854@item chardev-remove id 1855@findex chardev-remove 1856Removes the chardev @var{id}. 1857 1858ETEXI 1859 1860 { 1861 .name = "chardev-send-break", 1862 .args_type = "id:s", 1863 .params = "id", 1864 .help = "send a break on chardev", 1865 .cmd = hmp_chardev_send_break, 1866 .command_completion = chardev_remove_completion, 1867 }, 1868 1869STEXI 1870@item chardev-send-break id 1871@findex chardev-send-break 1872Send a break on the chardev @var{id}. 1873 1874ETEXI 1875 1876 { 1877 .name = "qemu-io", 1878 .args_type = "device:B,command:s", 1879 .params = "[device] \"[command]\"", 1880 .help = "run a qemu-io command on a block device", 1881 .cmd = hmp_qemu_io, 1882 }, 1883 1884STEXI 1885@item qemu-io @var{device} @var{command} 1886@findex qemu-io 1887Executes a qemu-io command on the given block device. 1888 1889ETEXI 1890 1891 { 1892 .name = "cpu-add", 1893 .args_type = "id:i", 1894 .params = "id", 1895 .help = "add cpu (deprecated, use device_add instead)", 1896 .cmd = hmp_cpu_add, 1897 }, 1898 1899STEXI 1900@item cpu-add @var{id} 1901@findex cpu-add 1902Add CPU with id @var{id}. This command is deprecated, please 1903+use @code{device_add} instead. For details, refer to 1904'docs/cpu-hotplug.rst'. 1905ETEXI 1906 1907 { 1908 .name = "qom-list", 1909 .args_type = "path:s?", 1910 .params = "path", 1911 .help = "list QOM properties", 1912 .cmd = hmp_qom_list, 1913 .flags = "p", 1914 }, 1915 1916STEXI 1917@item qom-list [@var{path}] 1918Print QOM properties of object at location @var{path} 1919ETEXI 1920 1921 { 1922 .name = "qom-set", 1923 .args_type = "path:s,property:s,value:s", 1924 .params = "path property value", 1925 .help = "set QOM property", 1926 .cmd = hmp_qom_set, 1927 .flags = "p", 1928 }, 1929 1930STEXI 1931@item qom-set @var{path} @var{property} @var{value} 1932Set QOM property @var{property} of object at location @var{path} to value @var{value} 1933ETEXI 1934 1935 { 1936 .name = "info", 1937 .args_type = "item:s?", 1938 .params = "[subcommand]", 1939 .help = "show various information about the system state", 1940 .cmd = hmp_info_help, 1941 .sub_table = hmp_info_cmds, 1942 .flags = "p", 1943 }, 1944 1945STEXI 1946@end table 1947ETEXI 1948