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 .mhandler.cmd = do_help_cmd, 18 }, 19 20STEXI 21@item help or ? [@var{cmd}] 22@findex help 23Show the help for all commands or just for command @var{cmd}. 24ETEXI 25 26 { 27 .name = "commit", 28 .args_type = "device:B", 29 .params = "device|all", 30 .help = "commit changes to the disk images (if -snapshot is used) or backing files", 31 .mhandler.cmd = hmp_commit, 32 }, 33 34STEXI 35@item commit 36@findex commit 37Commit changes to the disk images (if -snapshot is used) or backing files. 38If the backing file is smaller than the snapshot, then the backing file will be 39resized to be the same size as the snapshot. If the snapshot is smaller than 40the backing file, the backing file will not be truncated. If you want the 41backing file to match the size of the smaller snapshot, you can safely truncate 42it yourself once the commit operation successfully completes. 43ETEXI 44 45 { 46 .name = "q|quit", 47 .args_type = "", 48 .params = "", 49 .help = "quit the emulator", 50 .mhandler.cmd = hmp_quit, 51 }, 52 53STEXI 54@item q or quit 55@findex quit 56Quit the emulator. 57ETEXI 58 59 { 60 .name = "block_resize", 61 .args_type = "device:B,size:o", 62 .params = "device size", 63 .help = "resize a block image", 64 .mhandler.cmd = hmp_block_resize, 65 }, 66 67STEXI 68@item block_resize 69@findex block_resize 70Resize a block image while a guest is running. Usually requires guest 71action to see the updated size. Resize to a lower size is supported, 72but should be used with extreme caution. Note that this command only 73resizes image files, it can not resize block devices like LVM volumes. 74ETEXI 75 76 { 77 .name = "block_stream", 78 .args_type = "device:B,speed:o?,base:s?", 79 .params = "device [speed [base]]", 80 .help = "copy data from a backing file into a block device", 81 .mhandler.cmd = hmp_block_stream, 82 }, 83 84STEXI 85@item block_stream 86@findex block_stream 87Copy data from a backing file into a block device. 88ETEXI 89 90 { 91 .name = "block_job_set_speed", 92 .args_type = "device:B,speed:o", 93 .params = "device speed", 94 .help = "set maximum speed for a background block operation", 95 .mhandler.cmd = hmp_block_job_set_speed, 96 }, 97 98STEXI 99@item block_job_set_speed 100@findex block_job_set_speed 101Set maximum speed for a background block operation. 102ETEXI 103 104 { 105 .name = "block_job_cancel", 106 .args_type = "force:-f,device:B", 107 .params = "[-f] device", 108 .help = "stop an active background block operation (use -f" 109 "\n\t\t\t if the operation is currently paused)", 110 .mhandler.cmd = hmp_block_job_cancel, 111 }, 112 113STEXI 114@item block_job_cancel 115@findex block_job_cancel 116Stop an active background block operation (streaming, mirroring). 117ETEXI 118 119 { 120 .name = "block_job_complete", 121 .args_type = "device:B", 122 .params = "device", 123 .help = "stop an active background block operation", 124 .mhandler.cmd = hmp_block_job_complete, 125 }, 126 127STEXI 128@item block_job_complete 129@findex block_job_complete 130Manually trigger completion of an active background block operation. 131For mirroring, this will switch the device to the destination path. 132ETEXI 133 134 { 135 .name = "block_job_pause", 136 .args_type = "device:B", 137 .params = "device", 138 .help = "pause an active background block operation", 139 .mhandler.cmd = hmp_block_job_pause, 140 }, 141 142STEXI 143@item block_job_pause 144@findex block_job_pause 145Pause an active block streaming operation. 146ETEXI 147 148 { 149 .name = "block_job_resume", 150 .args_type = "device:B", 151 .params = "device", 152 .help = "resume a paused background block operation", 153 .mhandler.cmd = hmp_block_job_resume, 154 }, 155 156STEXI 157@item block_job_resume 158@findex block_job_resume 159Resume a paused block streaming operation. 160ETEXI 161 162 { 163 .name = "eject", 164 .args_type = "force:-f,device:B", 165 .params = "[-f] device", 166 .help = "eject a removable medium (use -f to force it)", 167 .mhandler.cmd = hmp_eject, 168 }, 169 170STEXI 171@item eject [-f] @var{device} 172@findex eject 173Eject a removable medium (use -f to force it). 174ETEXI 175 176 { 177 .name = "drive_del", 178 .args_type = "id:B", 179 .params = "device", 180 .help = "remove host block device", 181 .mhandler.cmd = hmp_drive_del, 182 }, 183 184STEXI 185@item drive_del @var{device} 186@findex drive_del 187Remove host block device. The result is that guest generated IO is no longer 188submitted against the host device underlying the disk. Once a drive has 189been deleted, the QEMU Block layer returns -EIO which results in IO 190errors in the guest for applications that are reading/writing to the device. 191These errors are always reported to the guest, regardless of the drive's error 192actions (drive options rerror, werror). 193ETEXI 194 195 { 196 .name = "change", 197 .args_type = "device:B,target:F,arg:s?,read-only-mode:s?", 198 .params = "device filename [format [read-only-mode]]", 199 .help = "change a removable medium, optional format", 200 .mhandler.cmd = hmp_change, 201 }, 202 203STEXI 204@item change @var{device} @var{setting} 205@findex change 206Change the configuration of a device. 207 208@table @option 209@item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]] 210Change the medium for a removable disk device to point to @var{filename}. eg 211 212@example 213(qemu) change ide1-cd0 /path/to/some.iso 214@end example 215 216@var{format} is optional. 217 218@var{read-only-mode} may be used to change the read-only status of the device. 219It accepts the following values: 220 221@table @var 222@item retain 223Retains the current status; this is the default. 224 225@item read-only 226Makes the device read-only. 227 228@item read-write 229Makes the device writable. 230@end table 231 232@item change vnc @var{display},@var{options} 233Change the configuration of the VNC server. The valid syntax for @var{display} 234and @var{options} are described at @ref{sec_invocation}. eg 235 236@example 237(qemu) change vnc localhost:1 238@end example 239 240@item change vnc password [@var{password}] 241 242Change the password associated with the VNC server. If the new password is not 243supplied, the monitor will prompt for it to be entered. VNC passwords are only 244significant up to 8 letters. eg 245 246@example 247(qemu) change vnc password 248Password: ******** 249@end example 250 251@end table 252ETEXI 253 254 { 255 .name = "screendump", 256 .args_type = "filename:F", 257 .params = "filename", 258 .help = "save screen into PPM image 'filename'", 259 .mhandler.cmd = hmp_screendump, 260 }, 261 262STEXI 263@item screendump @var{filename} 264@findex screendump 265Save screen into PPM image @var{filename}. 266ETEXI 267 268 { 269 .name = "logfile", 270 .args_type = "filename:F", 271 .params = "filename", 272 .help = "output logs to 'filename'", 273 .mhandler.cmd = hmp_logfile, 274 }, 275 276STEXI 277@item logfile @var{filename} 278@findex logfile 279Output logs to @var{filename}. 280ETEXI 281 282 { 283 .name = "trace-event", 284 .args_type = "name:s,option:b", 285 .params = "name on|off", 286 .help = "changes status of a specific trace event", 287 .mhandler.cmd = hmp_trace_event, 288 .command_completion = trace_event_completion, 289 }, 290 291STEXI 292@item trace-event 293@findex trace-event 294changes status of a trace event 295ETEXI 296 297#if defined(CONFIG_TRACE_SIMPLE) 298 { 299 .name = "trace-file", 300 .args_type = "op:s?,arg:F?", 301 .params = "on|off|flush|set [arg]", 302 .help = "open, close, or flush trace file, or set a new file name", 303 .mhandler.cmd = hmp_trace_file, 304 }, 305 306STEXI 307@item trace-file on|off|flush 308@findex trace-file 309Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed. 310ETEXI 311#endif 312 313 { 314 .name = "log", 315 .args_type = "items:s", 316 .params = "item1[,...]", 317 .help = "activate logging of the specified items", 318 .mhandler.cmd = hmp_log, 319 }, 320 321STEXI 322@item log @var{item1}[,...] 323@findex log 324Activate logging of the specified items. 325ETEXI 326 327 { 328 .name = "savevm", 329 .args_type = "name:s?", 330 .params = "[tag|id]", 331 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created", 332 .mhandler.cmd = hmp_savevm, 333 }, 334 335STEXI 336@item savevm [@var{tag}|@var{id}] 337@findex savevm 338Create a snapshot of the whole virtual machine. If @var{tag} is 339provided, it is used as human readable identifier. If there is already 340a snapshot with the same tag or ID, it is replaced. More info at 341@ref{vm_snapshots}. 342ETEXI 343 344 { 345 .name = "loadvm", 346 .args_type = "name:s", 347 .params = "tag|id", 348 .help = "restore a VM snapshot from its tag or id", 349 .mhandler.cmd = hmp_loadvm, 350 .command_completion = loadvm_completion, 351 }, 352 353STEXI 354@item loadvm @var{tag}|@var{id} 355@findex loadvm 356Set the whole virtual machine to the snapshot identified by the tag 357@var{tag} or the unique snapshot ID @var{id}. 358ETEXI 359 360 { 361 .name = "delvm", 362 .args_type = "name:s", 363 .params = "tag|id", 364 .help = "delete a VM snapshot from its tag or id", 365 .mhandler.cmd = hmp_delvm, 366 .command_completion = delvm_completion, 367 }, 368 369STEXI 370@item delvm @var{tag}|@var{id} 371@findex delvm 372Delete the snapshot identified by @var{tag} or @var{id}. 373ETEXI 374 375 { 376 .name = "singlestep", 377 .args_type = "option:s?", 378 .params = "[on|off]", 379 .help = "run emulation in singlestep mode or switch to normal mode", 380 .mhandler.cmd = hmp_singlestep, 381 }, 382 383STEXI 384@item singlestep [off] 385@findex singlestep 386Run the emulation in single step mode. 387If called with option off, the emulation returns to normal mode. 388ETEXI 389 390 { 391 .name = "stop", 392 .args_type = "", 393 .params = "", 394 .help = "stop emulation", 395 .mhandler.cmd = hmp_stop, 396 }, 397 398STEXI 399@item stop 400@findex stop 401Stop emulation. 402ETEXI 403 404 { 405 .name = "c|cont", 406 .args_type = "", 407 .params = "", 408 .help = "resume emulation", 409 .mhandler.cmd = hmp_cont, 410 }, 411 412STEXI 413@item c or cont 414@findex cont 415Resume emulation. 416ETEXI 417 418 { 419 .name = "system_wakeup", 420 .args_type = "", 421 .params = "", 422 .help = "wakeup guest from suspend", 423 .mhandler.cmd = hmp_system_wakeup, 424 }, 425 426STEXI 427@item system_wakeup 428@findex system_wakeup 429Wakeup guest from suspend. 430ETEXI 431 432 { 433 .name = "gdbserver", 434 .args_type = "device:s?", 435 .params = "[device]", 436 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'", 437 .mhandler.cmd = hmp_gdbserver, 438 }, 439 440STEXI 441@item gdbserver [@var{port}] 442@findex gdbserver 443Start gdbserver session (default @var{port}=1234) 444ETEXI 445 446 { 447 .name = "x", 448 .args_type = "fmt:/,addr:l", 449 .params = "/fmt addr", 450 .help = "virtual memory dump starting at 'addr'", 451 .mhandler.cmd = hmp_memory_dump, 452 }, 453 454STEXI 455@item x/fmt @var{addr} 456@findex x 457Virtual memory dump starting at @var{addr}. 458ETEXI 459 460 { 461 .name = "xp", 462 .args_type = "fmt:/,addr:l", 463 .params = "/fmt addr", 464 .help = "physical memory dump starting at 'addr'", 465 .mhandler.cmd = hmp_physical_memory_dump, 466 }, 467 468STEXI 469@item xp /@var{fmt} @var{addr} 470@findex xp 471Physical memory dump starting at @var{addr}. 472 473@var{fmt} is a format which tells the command how to format the 474data. Its syntax is: @option{/@{count@}@{format@}@{size@}} 475 476@table @var 477@item count 478is the number of items to be dumped. 479 480@item format 481can be x (hex), d (signed decimal), u (unsigned decimal), o (octal), 482c (char) or i (asm instruction). 483 484@item size 485can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86, 486@code{h} or @code{w} can be specified with the @code{i} format to 487respectively select 16 or 32 bit code instruction size. 488 489@end table 490 491Examples: 492@itemize 493@item 494Dump 10 instructions at the current instruction pointer: 495@example 496(qemu) x/10i $eip 4970x90107063: ret 4980x90107064: sti 4990x90107065: lea 0x0(%esi,1),%esi 5000x90107069: lea 0x0(%edi,1),%edi 5010x90107070: ret 5020x90107071: jmp 0x90107080 5030x90107073: nop 5040x90107074: nop 5050x90107075: nop 5060x90107076: nop 507@end example 508 509@item 510Dump 80 16 bit values at the start of the video memory. 511@smallexample 512(qemu) xp/80hx 0xb8000 5130x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42 5140x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41 5150x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72 5160x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73 5170x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20 5180x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720 5190x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5200x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5210x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5220x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 523@end smallexample 524@end itemize 525ETEXI 526 527 { 528 .name = "p|print", 529 .args_type = "fmt:/,val:l", 530 .params = "/fmt expr", 531 .help = "print expression value (use $reg for CPU register access)", 532 .mhandler.cmd = do_print, 533 }, 534 535STEXI 536@item p or print/@var{fmt} @var{expr} 537@findex print 538Print expression value. Only the @var{format} part of @var{fmt} is 539used. 540ETEXI 541 542 { 543 .name = "i", 544 .args_type = "fmt:/,addr:i,index:i.", 545 .params = "/fmt addr", 546 .help = "I/O port read", 547 .mhandler.cmd = hmp_ioport_read, 548 }, 549 550STEXI 551@item i/@var{fmt} @var{addr} [.@var{index}] 552@findex i 553Read I/O port. 554ETEXI 555 556 { 557 .name = "o", 558 .args_type = "fmt:/,addr:i,val:i", 559 .params = "/fmt addr value", 560 .help = "I/O port write", 561 .mhandler.cmd = hmp_ioport_write, 562 }, 563 564STEXI 565@item o/@var{fmt} @var{addr} @var{val} 566@findex o 567Write to I/O port. 568ETEXI 569 570 { 571 .name = "sendkey", 572 .args_type = "keys:s,hold-time:i?", 573 .params = "keys [hold_ms]", 574 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)", 575 .mhandler.cmd = hmp_sendkey, 576 .command_completion = sendkey_completion, 577 }, 578 579STEXI 580@item sendkey @var{keys} 581@findex sendkey 582Send @var{keys} to the guest. @var{keys} could be the name of the 583key or the raw value in hexadecimal format. Use @code{-} to press 584several keys simultaneously. Example: 585@example 586sendkey ctrl-alt-f1 587@end example 588 589This command is useful to send keys that your graphical user interface 590intercepts at low level, such as @code{ctrl-alt-f1} in X Window. 591ETEXI 592 593 { 594 .name = "system_reset", 595 .args_type = "", 596 .params = "", 597 .help = "reset the system", 598 .mhandler.cmd = hmp_system_reset, 599 }, 600 601STEXI 602@item system_reset 603@findex system_reset 604Reset the system. 605ETEXI 606 607 { 608 .name = "system_powerdown", 609 .args_type = "", 610 .params = "", 611 .help = "send system power down event", 612 .mhandler.cmd = hmp_system_powerdown, 613 }, 614 615STEXI 616@item system_powerdown 617@findex system_powerdown 618Power down the system (if supported). 619ETEXI 620 621 { 622 .name = "sum", 623 .args_type = "start:i,size:i", 624 .params = "addr size", 625 .help = "compute the checksum of a memory region", 626 .mhandler.cmd = hmp_sum, 627 }, 628 629STEXI 630@item sum @var{addr} @var{size} 631@findex sum 632Compute the checksum of a memory region. 633ETEXI 634 635 { 636 .name = "usb_add", 637 .args_type = "devname:s", 638 .params = "device", 639 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')", 640 .mhandler.cmd = hmp_usb_add, 641 }, 642 643STEXI 644@item usb_add @var{devname} 645@findex usb_add 646Add the USB device @var{devname}. For details of available devices see 647@ref{usb_devices} 648ETEXI 649 650 { 651 .name = "usb_del", 652 .args_type = "devname:s", 653 .params = "device", 654 .help = "remove USB device 'bus.addr'", 655 .mhandler.cmd = hmp_usb_del, 656 }, 657 658STEXI 659@item usb_del @var{devname} 660@findex usb_del 661Remove the USB device @var{devname} from the QEMU virtual USB 662hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor 663command @code{info usb} to see the devices you can remove. 664ETEXI 665 666 { 667 .name = "device_add", 668 .args_type = "device:O", 669 .params = "driver[,prop=value][,...]", 670 .help = "add device, like -device on the command line", 671 .mhandler.cmd = hmp_device_add, 672 .command_completion = device_add_completion, 673 }, 674 675STEXI 676@item device_add @var{config} 677@findex device_add 678Add device. 679ETEXI 680 681 { 682 .name = "device_del", 683 .args_type = "id:s", 684 .params = "device", 685 .help = "remove device", 686 .mhandler.cmd = hmp_device_del, 687 .command_completion = device_del_completion, 688 }, 689 690STEXI 691@item device_del @var{id} 692@findex device_del 693Remove device @var{id}. @var{id} may be a short ID 694or a QOM object path. 695ETEXI 696 697 { 698 .name = "cpu", 699 .args_type = "index:i", 700 .params = "index", 701 .help = "set the default CPU", 702 .mhandler.cmd = hmp_cpu, 703 }, 704 705STEXI 706@item cpu @var{index} 707@findex cpu 708Set the default CPU. 709ETEXI 710 711 { 712 .name = "mouse_move", 713 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 714 .params = "dx dy [dz]", 715 .help = "send mouse move events", 716 .mhandler.cmd = hmp_mouse_move, 717 }, 718 719STEXI 720@item mouse_move @var{dx} @var{dy} [@var{dz}] 721@findex mouse_move 722Move the active mouse to the specified coordinates @var{dx} @var{dy} 723with optional scroll axis @var{dz}. 724ETEXI 725 726 { 727 .name = "mouse_button", 728 .args_type = "button_state:i", 729 .params = "state", 730 .help = "change mouse button state (1=L, 2=M, 4=R)", 731 .mhandler.cmd = hmp_mouse_button, 732 }, 733 734STEXI 735@item mouse_button @var{val} 736@findex mouse_button 737Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 738ETEXI 739 740 { 741 .name = "mouse_set", 742 .args_type = "index:i", 743 .params = "index", 744 .help = "set which mouse device receives events", 745 .mhandler.cmd = hmp_mouse_set, 746 }, 747 748STEXI 749@item mouse_set @var{index} 750@findex mouse_set 751Set which mouse device receives events at given @var{index}, index 752can be obtained with 753@example 754info mice 755@end example 756ETEXI 757 758 { 759 .name = "wavcapture", 760 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 761 .params = "path [frequency [bits [channels]]]", 762 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 763 .mhandler.cmd = hmp_wavcapture, 764 }, 765STEXI 766@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 767@findex wavcapture 768Capture audio into @var{filename}. Using sample rate @var{frequency} 769bits per sample @var{bits} and number of channels @var{channels}. 770 771Defaults: 772@itemize @minus 773@item Sample rate = 44100 Hz - CD quality 774@item Bits = 16 775@item Number of channels = 2 - Stereo 776@end itemize 777ETEXI 778 779 { 780 .name = "stopcapture", 781 .args_type = "n:i", 782 .params = "capture index", 783 .help = "stop capture", 784 .mhandler.cmd = hmp_stopcapture, 785 }, 786STEXI 787@item stopcapture @var{index} 788@findex stopcapture 789Stop capture with a given @var{index}, index can be obtained with 790@example 791info capture 792@end example 793ETEXI 794 795 { 796 .name = "memsave", 797 .args_type = "val:l,size:i,filename:s", 798 .params = "addr size file", 799 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 800 .mhandler.cmd = hmp_memsave, 801 }, 802 803STEXI 804@item memsave @var{addr} @var{size} @var{file} 805@findex memsave 806save to disk virtual memory dump starting at @var{addr} of size @var{size}. 807ETEXI 808 809 { 810 .name = "pmemsave", 811 .args_type = "val:l,size:i,filename:s", 812 .params = "addr size file", 813 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 814 .mhandler.cmd = hmp_pmemsave, 815 }, 816 817STEXI 818@item pmemsave @var{addr} @var{size} @var{file} 819@findex pmemsave 820save to disk physical memory dump starting at @var{addr} of size @var{size}. 821ETEXI 822 823 { 824 .name = "boot_set", 825 .args_type = "bootdevice:s", 826 .params = "bootdevice", 827 .help = "define new values for the boot device list", 828 .mhandler.cmd = hmp_boot_set, 829 }, 830 831STEXI 832@item boot_set @var{bootdevicelist} 833@findex boot_set 834Define new values for the boot device list. Those values will override 835the values specified on the command line through the @code{-boot} option. 836 837The values that can be specified here depend on the machine type, but are 838the same that can be specified in the @code{-boot} command line option. 839ETEXI 840 841 { 842 .name = "nmi", 843 .args_type = "", 844 .params = "", 845 .help = "inject an NMI", 846 .mhandler.cmd = hmp_nmi, 847 }, 848STEXI 849@item nmi @var{cpu} 850@findex nmi 851Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). 852 853ETEXI 854 855 { 856 .name = "ringbuf_write", 857 .args_type = "device:s,data:s", 858 .params = "device data", 859 .help = "Write to a ring buffer character device", 860 .mhandler.cmd = hmp_ringbuf_write, 861 .command_completion = ringbuf_write_completion, 862 }, 863 864STEXI 865@item ringbuf_write @var{device} @var{data} 866@findex ringbuf_write 867Write @var{data} to ring buffer character device @var{device}. 868@var{data} must be a UTF-8 string. 869 870ETEXI 871 872 { 873 .name = "ringbuf_read", 874 .args_type = "device:s,size:i", 875 .params = "device size", 876 .help = "Read from a ring buffer character device", 877 .mhandler.cmd = hmp_ringbuf_read, 878 .command_completion = ringbuf_write_completion, 879 }, 880 881STEXI 882@item ringbuf_read @var{device} 883@findex ringbuf_read 884Read and print up to @var{size} bytes from ring buffer character 885device @var{device}. 886Certain non-printable characters are printed \uXXXX, where XXXX is the 887character code in hexadecimal. Character \ is printed \\. 888Bug: can screw up when the buffer contains invalid UTF-8 sequences, 889NUL characters, after the ring buffer lost data, and when reading 890stops because the size limit is reached. 891 892ETEXI 893 894 { 895 .name = "migrate", 896 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 897 .params = "[-d] [-b] [-i] uri", 898 .help = "migrate to URI (using -d to not wait for completion)" 899 "\n\t\t\t -b for migration without shared storage with" 900 " full copy of disk\n\t\t\t -i for migration without " 901 "shared storage with incremental copy of disk " 902 "(base image shared between src and destination)", 903 .mhandler.cmd = hmp_migrate, 904 }, 905 906 907STEXI 908@item migrate [-d] [-b] [-i] @var{uri} 909@findex migrate 910Migrate to @var{uri} (using -d to not wait for completion). 911 -b for migration with full copy of disk 912 -i for migration with incremental copy of disk (base image is shared) 913ETEXI 914 915 { 916 .name = "migrate_cancel", 917 .args_type = "", 918 .params = "", 919 .help = "cancel the current VM migration", 920 .mhandler.cmd = hmp_migrate_cancel, 921 }, 922 923STEXI 924@item migrate_cancel 925@findex migrate_cancel 926Cancel the current VM migration. 927 928ETEXI 929 930 { 931 .name = "migrate_incoming", 932 .args_type = "uri:s", 933 .params = "uri", 934 .help = "Continue an incoming migration from an -incoming defer", 935 .mhandler.cmd = hmp_migrate_incoming, 936 }, 937 938STEXI 939@item migrate_incoming @var{uri} 940@findex migrate_incoming 941Continue an incoming migration using the @var{uri} (that has the same syntax 942as the -incoming option). 943 944ETEXI 945 946 { 947 .name = "migrate_set_cache_size", 948 .args_type = "value:o", 949 .params = "value", 950 .help = "set cache size (in bytes) for XBZRLE migrations," 951 "the cache size will be rounded down to the nearest " 952 "power of 2.\n" 953 "The cache size affects the number of cache misses." 954 "In case of a high cache miss ratio you need to increase" 955 " the cache size", 956 .mhandler.cmd = hmp_migrate_set_cache_size, 957 }, 958 959STEXI 960@item migrate_set_cache_size @var{value} 961@findex migrate_set_cache_size 962Set cache size to @var{value} (in bytes) for xbzrle migrations. 963ETEXI 964 965 { 966 .name = "migrate_set_speed", 967 .args_type = "value:o", 968 .params = "value", 969 .help = "set maximum speed (in bytes) for migrations. " 970 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 971 .mhandler.cmd = hmp_migrate_set_speed, 972 }, 973 974STEXI 975@item migrate_set_speed @var{value} 976@findex migrate_set_speed 977Set maximum speed to @var{value} (in bytes) for migrations. 978ETEXI 979 980 { 981 .name = "migrate_set_downtime", 982 .args_type = "value:T", 983 .params = "value", 984 .help = "set maximum tolerated downtime (in seconds) for migrations", 985 .mhandler.cmd = hmp_migrate_set_downtime, 986 }, 987 988STEXI 989@item migrate_set_downtime @var{second} 990@findex migrate_set_downtime 991Set maximum tolerated downtime (in seconds) for migration. 992ETEXI 993 994 { 995 .name = "migrate_set_capability", 996 .args_type = "capability:s,state:b", 997 .params = "capability state", 998 .help = "Enable/Disable the usage of a capability for migration", 999 .mhandler.cmd = hmp_migrate_set_capability, 1000 .command_completion = migrate_set_capability_completion, 1001 }, 1002 1003STEXI 1004@item migrate_set_capability @var{capability} @var{state} 1005@findex migrate_set_capability 1006Enable/Disable the usage of a capability @var{capability} for migration. 1007ETEXI 1008 1009 { 1010 .name = "migrate_set_parameter", 1011 .args_type = "parameter:s,value:i", 1012 .params = "parameter value", 1013 .help = "Set the parameter for migration", 1014 .mhandler.cmd = hmp_migrate_set_parameter, 1015 .command_completion = migrate_set_parameter_completion, 1016 }, 1017 1018STEXI 1019@item migrate_set_parameter @var{parameter} @var{value} 1020@findex migrate_set_parameter 1021Set the parameter @var{parameter} for migration. 1022ETEXI 1023 1024 { 1025 .name = "migrate_start_postcopy", 1026 .args_type = "", 1027 .params = "", 1028 .help = "Followup to a migration command to switch the migration" 1029 " to postcopy mode. The x-postcopy-ram capability must " 1030 "be set before the original migration command.", 1031 .mhandler.cmd = hmp_migrate_start_postcopy, 1032 }, 1033 1034STEXI 1035@item migrate_start_postcopy 1036@findex migrate_start_postcopy 1037Switch in-progress migration to postcopy mode. Ignored after the end of 1038migration (or once already in postcopy). 1039ETEXI 1040 1041 { 1042 .name = "client_migrate_info", 1043 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1044 .params = "protocol hostname port tls-port cert-subject", 1045 .help = "set migration information for remote display", 1046 .mhandler.cmd = hmp_client_migrate_info, 1047 }, 1048 1049STEXI 1050@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1051@findex client_migrate_info 1052Set migration information for remote display. This makes the server 1053ask the client to automatically reconnect using the new parameters 1054once migration finished successfully. Only implemented for SPICE. 1055ETEXI 1056 1057 { 1058 .name = "dump-guest-memory", 1059 .args_type = "paging:-p,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", 1060 .params = "[-p] [-z|-l|-s] filename [begin length]", 1061 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1062 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1063 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1064 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1065 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1066 "begin: the starting physical address.\n\t\t\t" 1067 "length: the memory size, in bytes.", 1068 .mhandler.cmd = hmp_dump_guest_memory, 1069 }, 1070 1071 1072STEXI 1073@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1074@item dump-guest-memory [-z|-l|-s] @var{filename} 1075@findex dump-guest-memory 1076Dump guest memory to @var{protocol}. The file can be processed with crash or 1077gdb. Without -z|-l|-s, the dump format is ELF. 1078 -p: do paging to get guest's memory mapping. 1079 -z: dump in kdump-compressed format, with zlib compression. 1080 -l: dump in kdump-compressed format, with lzo compression. 1081 -s: dump in kdump-compressed format, with snappy compression. 1082 filename: dump file name. 1083 begin: the starting physical address. It's optional, and should be 1084 specified together with length. 1085 length: the memory size, in bytes. It's optional, and should be specified 1086 together with begin. 1087ETEXI 1088 1089#if defined(TARGET_S390X) 1090 { 1091 .name = "dump-skeys", 1092 .args_type = "filename:F", 1093 .params = "", 1094 .help = "Save guest storage keys into file 'filename'.\n", 1095 .mhandler.cmd = hmp_dump_skeys, 1096 }, 1097#endif 1098 1099STEXI 1100@item dump-skeys @var{filename} 1101@findex dump-skeys 1102Save guest storage keys to a file. 1103ETEXI 1104 1105 { 1106 .name = "snapshot_blkdev", 1107 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1108 .params = "[-n] device [new-image-file] [format]", 1109 .help = "initiates a live snapshot\n\t\t\t" 1110 "of device. If a new image file is specified, the\n\t\t\t" 1111 "new image file will become the new root image.\n\t\t\t" 1112 "If format is specified, the snapshot file will\n\t\t\t" 1113 "be created in that format.\n\t\t\t" 1114 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1115 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1116 "recreating it from scratch.", 1117 .mhandler.cmd = hmp_snapshot_blkdev, 1118 }, 1119 1120STEXI 1121@item snapshot_blkdev 1122@findex snapshot_blkdev 1123Snapshot device, using snapshot file as target if provided 1124ETEXI 1125 1126 { 1127 .name = "snapshot_blkdev_internal", 1128 .args_type = "device:B,name:s", 1129 .params = "device name", 1130 .help = "take an internal snapshot of device.\n\t\t\t" 1131 "The format of the image used by device must\n\t\t\t" 1132 "support it, such as qcow2.\n\t\t\t", 1133 .mhandler.cmd = hmp_snapshot_blkdev_internal, 1134 }, 1135 1136STEXI 1137@item snapshot_blkdev_internal 1138@findex snapshot_blkdev_internal 1139Take an internal snapshot on device if it support 1140ETEXI 1141 1142 { 1143 .name = "snapshot_delete_blkdev_internal", 1144 .args_type = "device:B,name:s,id:s?", 1145 .params = "device name [id]", 1146 .help = "delete an internal snapshot of device.\n\t\t\t" 1147 "If id is specified, qemu will try delete\n\t\t\t" 1148 "the snapshot matching both id and name.\n\t\t\t" 1149 "The format of the image used by device must\n\t\t\t" 1150 "support it, such as qcow2.\n\t\t\t", 1151 .mhandler.cmd = hmp_snapshot_delete_blkdev_internal, 1152 }, 1153 1154STEXI 1155@item snapshot_delete_blkdev_internal 1156@findex snapshot_delete_blkdev_internal 1157Delete an internal snapshot on device if it support 1158ETEXI 1159 1160 { 1161 .name = "drive_mirror", 1162 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1163 .params = "[-n] [-f] device target [format]", 1164 .help = "initiates live storage\n\t\t\t" 1165 "migration for a device. The device's contents are\n\t\t\t" 1166 "copied to the new image file, including data that\n\t\t\t" 1167 "is written after the command is started.\n\t\t\t" 1168 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1169 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1170 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1171 "so that the result does not need a backing file.\n\t\t\t", 1172 .mhandler.cmd = hmp_drive_mirror, 1173 }, 1174STEXI 1175@item drive_mirror 1176@findex drive_mirror 1177Start mirroring a block device's writes to a new destination, 1178using the specified target. 1179ETEXI 1180 1181 { 1182 .name = "drive_backup", 1183 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1184 .params = "[-n] [-f] device target [format]", 1185 .help = "initiates a point-in-time\n\t\t\t" 1186 "copy for a device. The device's contents are\n\t\t\t" 1187 "copied to the new image file, excluding data that\n\t\t\t" 1188 "is written after the command is started.\n\t\t\t" 1189 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1190 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1191 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1192 "so that the result does not need a backing file.\n\t\t\t", 1193 .mhandler.cmd = hmp_drive_backup, 1194 }, 1195STEXI 1196@item drive_backup 1197@findex drive_backup 1198Start a point-in-time copy of a block device to a specificed target. 1199ETEXI 1200 1201 { 1202 .name = "drive_add", 1203 .args_type = "pci_addr:s,opts:s", 1204 .params = "[[<domain>:]<bus>:]<slot>\n" 1205 "[file=file][,if=type][,bus=n]\n" 1206 "[,unit=m][,media=d][,index=i]\n" 1207 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1208 "[,snapshot=on|off][,cache=on|off]\n" 1209 "[,readonly=on|off][,copy-on-read=on|off]", 1210 .help = "add drive to PCI storage controller", 1211 .mhandler.cmd = hmp_drive_add, 1212 }, 1213 1214STEXI 1215@item drive_add 1216@findex drive_add 1217Add drive to PCI storage controller. 1218ETEXI 1219 1220 { 1221 .name = "pcie_aer_inject_error", 1222 .args_type = "advisory_non_fatal:-a,correctable:-c," 1223 "id:s,error_status:s," 1224 "header0:i?,header1:i?,header2:i?,header3:i?," 1225 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1226 .params = "[-a] [-c] id " 1227 "<error_status> [<tlp header> [<tlp header prefix>]]", 1228 .help = "inject pcie aer error\n\t\t\t" 1229 " -a for advisory non fatal error\n\t\t\t" 1230 " -c for correctable error\n\t\t\t" 1231 "<id> = qdev device id\n\t\t\t" 1232 "<error_status> = error string or 32bit\n\t\t\t" 1233 "<tlb header> = 32bit x 4\n\t\t\t" 1234 "<tlb header prefix> = 32bit x 4", 1235 .mhandler.cmd = hmp_pcie_aer_inject_error, 1236 }, 1237 1238STEXI 1239@item pcie_aer_inject_error 1240@findex pcie_aer_inject_error 1241Inject PCIe AER error 1242ETEXI 1243 1244 { 1245 .name = "host_net_add", 1246 .args_type = "device:s,opts:s?", 1247 .params = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]", 1248 .help = "add host VLAN client", 1249 .mhandler.cmd = hmp_host_net_add, 1250 .command_completion = host_net_add_completion, 1251 }, 1252 1253STEXI 1254@item host_net_add 1255@findex host_net_add 1256Add host VLAN client. 1257ETEXI 1258 1259 { 1260 .name = "host_net_remove", 1261 .args_type = "vlan_id:i,device:s", 1262 .params = "vlan_id name", 1263 .help = "remove host VLAN client", 1264 .mhandler.cmd = hmp_host_net_remove, 1265 .command_completion = host_net_remove_completion, 1266 }, 1267 1268STEXI 1269@item host_net_remove 1270@findex host_net_remove 1271Remove host VLAN client. 1272ETEXI 1273 1274 { 1275 .name = "netdev_add", 1276 .args_type = "netdev:O", 1277 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1278 .help = "add host network device", 1279 .mhandler.cmd = hmp_netdev_add, 1280 .command_completion = netdev_add_completion, 1281 }, 1282 1283STEXI 1284@item netdev_add 1285@findex netdev_add 1286Add host network device. 1287ETEXI 1288 1289 { 1290 .name = "netdev_del", 1291 .args_type = "id:s", 1292 .params = "id", 1293 .help = "remove host network device", 1294 .mhandler.cmd = hmp_netdev_del, 1295 .command_completion = netdev_del_completion, 1296 }, 1297 1298STEXI 1299@item netdev_del 1300@findex netdev_del 1301Remove host network device. 1302ETEXI 1303 1304 { 1305 .name = "object_add", 1306 .args_type = "object:O", 1307 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1308 .help = "create QOM object", 1309 .mhandler.cmd = hmp_object_add, 1310 .command_completion = object_add_completion, 1311 }, 1312 1313STEXI 1314@item object_add 1315@findex object_add 1316Create QOM object. 1317ETEXI 1318 1319 { 1320 .name = "object_del", 1321 .args_type = "id:s", 1322 .params = "id", 1323 .help = "destroy QOM object", 1324 .mhandler.cmd = hmp_object_del, 1325 .command_completion = object_del_completion, 1326 }, 1327 1328STEXI 1329@item object_del 1330@findex object_del 1331Destroy QOM object. 1332ETEXI 1333 1334#ifdef CONFIG_SLIRP 1335 { 1336 .name = "hostfwd_add", 1337 .args_type = "arg1:s,arg2:s?,arg3:s?", 1338 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1339 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1340 .mhandler.cmd = hmp_hostfwd_add, 1341 }, 1342#endif 1343STEXI 1344@item hostfwd_add 1345@findex hostfwd_add 1346Redirect TCP or UDP connections from host to guest (requires -net user). 1347ETEXI 1348 1349#ifdef CONFIG_SLIRP 1350 { 1351 .name = "hostfwd_remove", 1352 .args_type = "arg1:s,arg2:s?,arg3:s?", 1353 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport", 1354 .help = "remove host-to-guest TCP or UDP redirection", 1355 .mhandler.cmd = hmp_hostfwd_remove, 1356 }, 1357 1358#endif 1359STEXI 1360@item hostfwd_remove 1361@findex hostfwd_remove 1362Remove host-to-guest TCP or UDP redirection. 1363ETEXI 1364 1365 { 1366 .name = "balloon", 1367 .args_type = "value:M", 1368 .params = "target", 1369 .help = "request VM to change its memory allocation (in MB)", 1370 .mhandler.cmd = hmp_balloon, 1371 }, 1372 1373STEXI 1374@item balloon @var{value} 1375@findex balloon 1376Request VM to change its memory allocation to @var{value} (in MB). 1377ETEXI 1378 1379 { 1380 .name = "set_link", 1381 .args_type = "name:s,up:b", 1382 .params = "name on|off", 1383 .help = "change the link status of a network adapter", 1384 .mhandler.cmd = hmp_set_link, 1385 .command_completion = set_link_completion, 1386 }, 1387 1388STEXI 1389@item set_link @var{name} [on|off] 1390@findex set_link 1391Switch link @var{name} on (i.e. up) or off (i.e. down). 1392ETEXI 1393 1394 { 1395 .name = "watchdog_action", 1396 .args_type = "action:s", 1397 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1398 .help = "change watchdog action", 1399 .mhandler.cmd = hmp_watchdog_action, 1400 .command_completion = watchdog_action_completion, 1401 }, 1402 1403STEXI 1404@item watchdog_action 1405@findex watchdog_action 1406Change watchdog action. 1407ETEXI 1408 1409 { 1410 .name = "acl_show", 1411 .args_type = "aclname:s", 1412 .params = "aclname", 1413 .help = "list rules in the access control list", 1414 .mhandler.cmd = hmp_acl_show, 1415 }, 1416 1417STEXI 1418@item acl_show @var{aclname} 1419@findex acl_show 1420List all the matching rules in the access control list, and the default 1421policy. There are currently two named access control lists, 1422@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1423certificate distinguished name, and SASL username respectively. 1424ETEXI 1425 1426 { 1427 .name = "acl_policy", 1428 .args_type = "aclname:s,policy:s", 1429 .params = "aclname allow|deny", 1430 .help = "set default access control list policy", 1431 .mhandler.cmd = hmp_acl_policy, 1432 }, 1433 1434STEXI 1435@item acl_policy @var{aclname} @code{allow|deny} 1436@findex acl_policy 1437Set the default access control list policy, used in the event that 1438none of the explicit rules match. The default policy at startup is 1439always @code{deny}. 1440ETEXI 1441 1442 { 1443 .name = "acl_add", 1444 .args_type = "aclname:s,match:s,policy:s,index:i?", 1445 .params = "aclname match allow|deny [index]", 1446 .help = "add a match rule to the access control list", 1447 .mhandler.cmd = hmp_acl_add, 1448 }, 1449 1450STEXI 1451@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1452@findex acl_add 1453Add a match rule to the access control list, allowing or denying access. 1454The match will normally be an exact username or x509 distinguished name, 1455but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1456allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1457normally be appended to the end of the ACL, but can be inserted 1458earlier in the list if the optional @var{index} parameter is supplied. 1459ETEXI 1460 1461 { 1462 .name = "acl_remove", 1463 .args_type = "aclname:s,match:s", 1464 .params = "aclname match", 1465 .help = "remove a match rule from the access control list", 1466 .mhandler.cmd = hmp_acl_remove, 1467 }, 1468 1469STEXI 1470@item acl_remove @var{aclname} @var{match} 1471@findex acl_remove 1472Remove the specified match rule from the access control list. 1473ETEXI 1474 1475 { 1476 .name = "acl_reset", 1477 .args_type = "aclname:s", 1478 .params = "aclname", 1479 .help = "reset the access control list", 1480 .mhandler.cmd = hmp_acl_reset, 1481 }, 1482 1483STEXI 1484@item acl_reset @var{aclname} 1485@findex acl_reset 1486Remove all matches from the access control list, and set the default 1487policy back to @code{deny}. 1488ETEXI 1489 1490 { 1491 .name = "nbd_server_start", 1492 .args_type = "all:-a,writable:-w,uri:s", 1493 .params = "nbd_server_start [-a] [-w] host:port", 1494 .help = "serve block devices on the given host and port", 1495 .mhandler.cmd = hmp_nbd_server_start, 1496 }, 1497STEXI 1498@item nbd_server_start @var{host}:@var{port} 1499@findex nbd_server_start 1500Start an NBD server on the given host and/or port. If the @option{-a} 1501option is included, all of the virtual machine's block devices that 1502have an inserted media on them are automatically exported; in this case, 1503the @option{-w} option makes the devices writable too. 1504ETEXI 1505 1506 { 1507 .name = "nbd_server_add", 1508 .args_type = "writable:-w,device:B", 1509 .params = "nbd_server_add [-w] device", 1510 .help = "export a block device via NBD", 1511 .mhandler.cmd = hmp_nbd_server_add, 1512 }, 1513STEXI 1514@item nbd_server_add @var{device} 1515@findex nbd_server_add 1516Export a block device through QEMU's NBD server, which must be started 1517beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1518exported device writable too. 1519ETEXI 1520 1521 { 1522 .name = "nbd_server_stop", 1523 .args_type = "", 1524 .params = "nbd_server_stop", 1525 .help = "stop serving block devices using the NBD protocol", 1526 .mhandler.cmd = hmp_nbd_server_stop, 1527 }, 1528STEXI 1529@item nbd_server_stop 1530@findex nbd_server_stop 1531Stop the QEMU embedded NBD server. 1532ETEXI 1533 1534 1535#if defined(TARGET_I386) 1536 1537 { 1538 .name = "mce", 1539 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1540 .params = "[-b] cpu bank status mcgstatus addr misc", 1541 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1542 .mhandler.cmd = hmp_mce, 1543 }, 1544 1545#endif 1546STEXI 1547@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1548@findex mce (x86) 1549Inject an MCE on the given CPU (x86 only). 1550ETEXI 1551 1552 { 1553 .name = "getfd", 1554 .args_type = "fdname:s", 1555 .params = "getfd name", 1556 .help = "receive a file descriptor via SCM rights and assign it a name", 1557 .mhandler.cmd = hmp_getfd, 1558 }, 1559 1560STEXI 1561@item getfd @var{fdname} 1562@findex getfd 1563If a file descriptor is passed alongside this command using the SCM_RIGHTS 1564mechanism on unix sockets, it is stored using the name @var{fdname} for 1565later use by other monitor commands. 1566ETEXI 1567 1568 { 1569 .name = "closefd", 1570 .args_type = "fdname:s", 1571 .params = "closefd name", 1572 .help = "close a file descriptor previously passed via SCM rights", 1573 .mhandler.cmd = hmp_closefd, 1574 }, 1575 1576STEXI 1577@item closefd @var{fdname} 1578@findex closefd 1579Close the file descriptor previously assigned to @var{fdname} using the 1580@code{getfd} command. This is only needed if the file descriptor was never 1581used by another monitor command. 1582ETEXI 1583 1584 { 1585 .name = "block_passwd", 1586 .args_type = "device:B,password:s", 1587 .params = "block_passwd device password", 1588 .help = "set the password of encrypted block devices", 1589 .mhandler.cmd = hmp_block_passwd, 1590 }, 1591 1592STEXI 1593@item block_passwd @var{device} @var{password} 1594@findex block_passwd 1595Set the encrypted device @var{device} password to @var{password} 1596ETEXI 1597 1598 { 1599 .name = "block_set_io_throttle", 1600 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1601 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1602 .help = "change I/O throttle limits for a block drive", 1603 .mhandler.cmd = hmp_block_set_io_throttle, 1604 }, 1605 1606STEXI 1607@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1608@findex block_set_io_throttle 1609Change 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} 1610ETEXI 1611 1612 { 1613 .name = "set_password", 1614 .args_type = "protocol:s,password:s,connected:s?", 1615 .params = "protocol password action-if-connected", 1616 .help = "set spice/vnc password", 1617 .mhandler.cmd = hmp_set_password, 1618 }, 1619 1620STEXI 1621@item set_password [ vnc | spice ] password [ action-if-connected ] 1622@findex set_password 1623Change spice/vnc password. Use zero to make the password stay valid 1624forever. @var{action-if-connected} specifies what should happen in 1625case a connection is established: @var{fail} makes the password change 1626fail. @var{disconnect} changes the password and disconnects the 1627client. @var{keep} changes the password and keeps the connection up. 1628@var{keep} is the default. 1629ETEXI 1630 1631 { 1632 .name = "expire_password", 1633 .args_type = "protocol:s,time:s", 1634 .params = "protocol time", 1635 .help = "set spice/vnc password expire-time", 1636 .mhandler.cmd = hmp_expire_password, 1637 }, 1638 1639STEXI 1640@item expire_password [ vnc | spice ] expire-time 1641@findex expire_password 1642Specify when a password for spice/vnc becomes 1643invalid. @var{expire-time} accepts: 1644 1645@table @var 1646@item now 1647Invalidate password instantly. 1648 1649@item never 1650Password stays valid forever. 1651 1652@item +nsec 1653Password stays valid for @var{nsec} seconds starting now. 1654 1655@item nsec 1656Password is invalidated at the given time. @var{nsec} are the seconds 1657passed since 1970, i.e. unix epoch. 1658 1659@end table 1660ETEXI 1661 1662 { 1663 .name = "chardev-add", 1664 .args_type = "args:s", 1665 .params = "args", 1666 .help = "add chardev", 1667 .mhandler.cmd = hmp_chardev_add, 1668 .command_completion = chardev_add_completion, 1669 }, 1670 1671STEXI 1672@item chardev-add args 1673@findex chardev-add 1674chardev_add accepts the same parameters as the -chardev command line switch. 1675 1676ETEXI 1677 1678 { 1679 .name = "chardev-remove", 1680 .args_type = "id:s", 1681 .params = "id", 1682 .help = "remove chardev", 1683 .mhandler.cmd = hmp_chardev_remove, 1684 .command_completion = chardev_remove_completion, 1685 }, 1686 1687STEXI 1688@item chardev-remove id 1689@findex chardev-remove 1690Removes the chardev @var{id}. 1691 1692ETEXI 1693 1694 { 1695 .name = "qemu-io", 1696 .args_type = "device:B,command:s", 1697 .params = "[device] \"[command]\"", 1698 .help = "run a qemu-io command on a block device", 1699 .mhandler.cmd = hmp_qemu_io, 1700 }, 1701 1702STEXI 1703@item qemu-io @var{device} @var{command} 1704@findex qemu-io 1705Executes a qemu-io command on the given block device. 1706 1707ETEXI 1708 1709 { 1710 .name = "cpu-add", 1711 .args_type = "id:i", 1712 .params = "id", 1713 .help = "add cpu", 1714 .mhandler.cmd = hmp_cpu_add, 1715 }, 1716 1717STEXI 1718@item cpu-add @var{id} 1719@findex cpu-add 1720Add CPU with id @var{id} 1721ETEXI 1722 1723 { 1724 .name = "qom-list", 1725 .args_type = "path:s?", 1726 .params = "path", 1727 .help = "list QOM properties", 1728 .mhandler.cmd = hmp_qom_list, 1729 }, 1730 1731STEXI 1732@item qom-list [@var{path}] 1733Print QOM properties of object at location @var{path} 1734ETEXI 1735 1736 { 1737 .name = "qom-set", 1738 .args_type = "path:s,property:s,value:s", 1739 .params = "path property value", 1740 .help = "set QOM property", 1741 .mhandler.cmd = hmp_qom_set, 1742 }, 1743 1744STEXI 1745@item qom-set @var{path} @var{property} @var{value} 1746Set QOM property @var{property} of object at location @var{path} to value @var{value} 1747ETEXI 1748 1749 { 1750 .name = "info", 1751 .args_type = "item:s?", 1752 .params = "[subcommand]", 1753 .help = "show various information about the system state", 1754 .mhandler.cmd = hmp_info_help, 1755 .sub_table = info_cmds, 1756 }, 1757 1758STEXI 1759@end table 1760ETEXI 1761