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 = do_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 .user_print = monitor_user_noop, 51 .mhandler.cmd = hmp_quit, 52 }, 53 54STEXI 55@item q or quit 56@findex quit 57Quit the emulator. 58ETEXI 59 60 { 61 .name = "block_resize", 62 .args_type = "device:B,size:o", 63 .params = "device size", 64 .help = "resize a block image", 65 .mhandler.cmd = hmp_block_resize, 66 }, 67 68STEXI 69@item block_resize 70@findex block_resize 71Resize a block image while a guest is running. Usually requires guest 72action to see the updated size. Resize to a lower size is supported, 73but should be used with extreme caution. Note that this command only 74resizes image files, it can not resize block devices like LVM volumes. 75ETEXI 76 77 { 78 .name = "block_stream", 79 .args_type = "device:B,speed:o?,base:s?", 80 .params = "device [speed [base]]", 81 .help = "copy data from a backing file into a block device", 82 .mhandler.cmd = hmp_block_stream, 83 }, 84 85STEXI 86@item block_stream 87@findex block_stream 88Copy data from a backing file into a block device. 89ETEXI 90 91 { 92 .name = "block_job_set_speed", 93 .args_type = "device:B,speed:o", 94 .params = "device speed", 95 .help = "set maximum speed for a background block operation", 96 .mhandler.cmd = hmp_block_job_set_speed, 97 }, 98 99STEXI 100@item block_job_set_speed 101@findex block_job_set_speed 102Set maximum speed for a background block operation. 103ETEXI 104 105 { 106 .name = "block_job_cancel", 107 .args_type = "force:-f,device:B", 108 .params = "[-f] device", 109 .help = "stop an active background block operation (use -f" 110 "\n\t\t\t if the operation is currently paused)", 111 .mhandler.cmd = hmp_block_job_cancel, 112 }, 113 114STEXI 115@item block_job_cancel 116@findex block_job_cancel 117Stop an active background block operation (streaming, mirroring). 118ETEXI 119 120 { 121 .name = "block_job_complete", 122 .args_type = "device:B", 123 .params = "device", 124 .help = "stop an active background block operation", 125 .mhandler.cmd = hmp_block_job_complete, 126 }, 127 128STEXI 129@item block_job_complete 130@findex block_job_complete 131Manually trigger completion of an active background block operation. 132For mirroring, this will switch the device to the destination path. 133ETEXI 134 135 { 136 .name = "block_job_pause", 137 .args_type = "device:B", 138 .params = "device", 139 .help = "pause an active background block operation", 140 .mhandler.cmd = hmp_block_job_pause, 141 }, 142 143STEXI 144@item block_job_pause 145@findex block_job_pause 146Pause an active block streaming operation. 147ETEXI 148 149 { 150 .name = "block_job_resume", 151 .args_type = "device:B", 152 .params = "device", 153 .help = "resume a paused background block operation", 154 .mhandler.cmd = hmp_block_job_resume, 155 }, 156 157STEXI 158@item block_job_resume 159@findex block_job_resume 160Resume a paused block streaming operation. 161ETEXI 162 163 { 164 .name = "eject", 165 .args_type = "force:-f,device:B", 166 .params = "[-f] device", 167 .help = "eject a removable medium (use -f to force it)", 168 .mhandler.cmd = hmp_eject, 169 }, 170 171STEXI 172@item eject [-f] @var{device} 173@findex eject 174Eject a removable medium (use -f to force it). 175ETEXI 176 177 { 178 .name = "drive_del", 179 .args_type = "id:s", 180 .params = "device", 181 .help = "remove host block device", 182 .user_print = monitor_user_noop, 183 .mhandler.cmd_new = do_drive_del, 184 }, 185 186STEXI 187@item drive_del @var{device} 188@findex drive_del 189Remove host block device. The result is that guest generated IO is no longer 190submitted against the host device underlying the disk. Once a drive has 191been deleted, the QEMU Block layer returns -EIO which results in IO 192errors in the guest for applications that are reading/writing to the device. 193These errors are always reported to the guest, regardless of the drive's error 194actions (drive options rerror, werror). 195ETEXI 196 197 { 198 .name = "change", 199 .args_type = "device:B,target:F,arg:s?", 200 .params = "device filename [format]", 201 .help = "change a removable medium, optional format", 202 .mhandler.cmd = hmp_change, 203 }, 204 205STEXI 206@item change @var{device} @var{setting} 207@findex change 208 209Change the configuration of a device. 210 211@table @option 212@item change @var{diskdevice} @var{filename} [@var{format}] 213Change the medium for a removable disk device to point to @var{filename}. eg 214 215@example 216(qemu) change ide1-cd0 /path/to/some.iso 217@end example 218 219@var{format} is optional. 220 221@item change vnc @var{display},@var{options} 222Change the configuration of the VNC server. The valid syntax for @var{display} 223and @var{options} are described at @ref{sec_invocation}. eg 224 225@example 226(qemu) change vnc localhost:1 227@end example 228 229@item change vnc password [@var{password}] 230 231Change the password associated with the VNC server. If the new password is not 232supplied, the monitor will prompt for it to be entered. VNC passwords are only 233significant up to 8 letters. eg 234 235@example 236(qemu) change vnc password 237Password: ******** 238@end example 239 240@end table 241ETEXI 242 243 { 244 .name = "screendump", 245 .args_type = "filename:F", 246 .params = "filename", 247 .help = "save screen into PPM image 'filename'", 248 .mhandler.cmd = hmp_screen_dump, 249 }, 250 251STEXI 252@item screendump @var{filename} 253@findex screendump 254Save screen into PPM image @var{filename}. 255ETEXI 256 257 { 258 .name = "logfile", 259 .args_type = "filename:F", 260 .params = "filename", 261 .help = "output logs to 'filename'", 262 .mhandler.cmd = do_logfile, 263 }, 264 265STEXI 266@item logfile @var{filename} 267@findex logfile 268Output logs to @var{filename}. 269ETEXI 270 271 { 272 .name = "trace-event", 273 .args_type = "name:s,option:b", 274 .params = "name on|off", 275 .help = "changes status of a specific trace event", 276 .mhandler.cmd = do_trace_event_set_state, 277 }, 278 279STEXI 280@item trace-event 281@findex trace-event 282changes status of a trace event 283ETEXI 284 285#if defined(CONFIG_TRACE_SIMPLE) 286 { 287 .name = "trace-file", 288 .args_type = "op:s?,arg:F?", 289 .params = "on|off|flush|set [arg]", 290 .help = "open, close, or flush trace file, or set a new file name", 291 .mhandler.cmd = do_trace_file, 292 }, 293 294STEXI 295@item trace-file on|off|flush 296@findex trace-file 297Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed. 298ETEXI 299#endif 300 301 { 302 .name = "log", 303 .args_type = "items:s", 304 .params = "item1[,...]", 305 .help = "activate logging of the specified items", 306 .mhandler.cmd = do_log, 307 }, 308 309STEXI 310@item log @var{item1}[,...] 311@findex log 312Activate logging of the specified items. 313ETEXI 314 315 { 316 .name = "savevm", 317 .args_type = "name:s?", 318 .params = "[tag|id]", 319 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created", 320 .mhandler.cmd = do_savevm, 321 }, 322 323STEXI 324@item savevm [@var{tag}|@var{id}] 325@findex savevm 326Create a snapshot of the whole virtual machine. If @var{tag} is 327provided, it is used as human readable identifier. If there is already 328a snapshot with the same tag or ID, it is replaced. More info at 329@ref{vm_snapshots}. 330ETEXI 331 332 { 333 .name = "loadvm", 334 .args_type = "name:s", 335 .params = "tag|id", 336 .help = "restore a VM snapshot from its tag or id", 337 .mhandler.cmd = do_loadvm, 338 }, 339 340STEXI 341@item loadvm @var{tag}|@var{id} 342@findex loadvm 343Set the whole virtual machine to the snapshot identified by the tag 344@var{tag} or the unique snapshot ID @var{id}. 345ETEXI 346 347 { 348 .name = "delvm", 349 .args_type = "name:s", 350 .params = "tag|id", 351 .help = "delete a VM snapshot from its tag or id", 352 .mhandler.cmd = do_delvm, 353 }, 354 355STEXI 356@item delvm @var{tag}|@var{id} 357@findex delvm 358Delete the snapshot identified by @var{tag} or @var{id}. 359ETEXI 360 361 { 362 .name = "singlestep", 363 .args_type = "option:s?", 364 .params = "[on|off]", 365 .help = "run emulation in singlestep mode or switch to normal mode", 366 .mhandler.cmd = do_singlestep, 367 }, 368 369STEXI 370@item singlestep [off] 371@findex singlestep 372Run the emulation in single step mode. 373If called with option off, the emulation returns to normal mode. 374ETEXI 375 376 { 377 .name = "stop", 378 .args_type = "", 379 .params = "", 380 .help = "stop emulation", 381 .mhandler.cmd = hmp_stop, 382 }, 383 384STEXI 385@item stop 386@findex stop 387Stop emulation. 388ETEXI 389 390 { 391 .name = "c|cont", 392 .args_type = "", 393 .params = "", 394 .help = "resume emulation", 395 .mhandler.cmd = hmp_cont, 396 }, 397 398STEXI 399@item c or cont 400@findex cont 401Resume emulation. 402ETEXI 403 404 { 405 .name = "system_wakeup", 406 .args_type = "", 407 .params = "", 408 .help = "wakeup guest from suspend", 409 .mhandler.cmd = hmp_system_wakeup, 410 }, 411 412STEXI 413@item system_wakeup 414@findex system_wakeup 415Wakeup guest from suspend. 416ETEXI 417 418 { 419 .name = "gdbserver", 420 .args_type = "device:s?", 421 .params = "[device]", 422 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'", 423 .mhandler.cmd = do_gdbserver, 424 }, 425 426STEXI 427@item gdbserver [@var{port}] 428@findex gdbserver 429Start gdbserver session (default @var{port}=1234) 430ETEXI 431 432 { 433 .name = "x", 434 .args_type = "fmt:/,addr:l", 435 .params = "/fmt addr", 436 .help = "virtual memory dump starting at 'addr'", 437 .mhandler.cmd = do_memory_dump, 438 }, 439 440STEXI 441@item x/fmt @var{addr} 442@findex x 443Virtual memory dump starting at @var{addr}. 444ETEXI 445 446 { 447 .name = "xp", 448 .args_type = "fmt:/,addr:l", 449 .params = "/fmt addr", 450 .help = "physical memory dump starting at 'addr'", 451 .mhandler.cmd = do_physical_memory_dump, 452 }, 453 454STEXI 455@item xp /@var{fmt} @var{addr} 456@findex xp 457Physical memory dump starting at @var{addr}. 458 459@var{fmt} is a format which tells the command how to format the 460data. Its syntax is: @option{/@{count@}@{format@}@{size@}} 461 462@table @var 463@item count 464is the number of items to be dumped. 465 466@item format 467can be x (hex), d (signed decimal), u (unsigned decimal), o (octal), 468c (char) or i (asm instruction). 469 470@item size 471can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86, 472@code{h} or @code{w} can be specified with the @code{i} format to 473respectively select 16 or 32 bit code instruction size. 474 475@end table 476 477Examples: 478@itemize 479@item 480Dump 10 instructions at the current instruction pointer: 481@example 482(qemu) x/10i $eip 4830x90107063: ret 4840x90107064: sti 4850x90107065: lea 0x0(%esi,1),%esi 4860x90107069: lea 0x0(%edi,1),%edi 4870x90107070: ret 4880x90107071: jmp 0x90107080 4890x90107073: nop 4900x90107074: nop 4910x90107075: nop 4920x90107076: nop 493@end example 494 495@item 496Dump 80 16 bit values at the start of the video memory. 497@smallexample 498(qemu) xp/80hx 0xb8000 4990x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42 5000x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41 5010x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72 5020x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73 5030x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20 5040x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720 5050x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5060x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5070x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5080x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 509@end smallexample 510@end itemize 511ETEXI 512 513 { 514 .name = "p|print", 515 .args_type = "fmt:/,val:l", 516 .params = "/fmt expr", 517 .help = "print expression value (use $reg for CPU register access)", 518 .mhandler.cmd = do_print, 519 }, 520 521STEXI 522@item p or print/@var{fmt} @var{expr} 523@findex print 524 525Print expression value. Only the @var{format} part of @var{fmt} is 526used. 527ETEXI 528 529 { 530 .name = "i", 531 .args_type = "fmt:/,addr:i,index:i.", 532 .params = "/fmt addr", 533 .help = "I/O port read", 534 .mhandler.cmd = do_ioport_read, 535 }, 536 537STEXI 538Read I/O port. 539ETEXI 540 541 { 542 .name = "o", 543 .args_type = "fmt:/,addr:i,val:i", 544 .params = "/fmt addr value", 545 .help = "I/O port write", 546 .mhandler.cmd = do_ioport_write, 547 }, 548 549STEXI 550Write to I/O port. 551ETEXI 552 553 { 554 .name = "sendkey", 555 .args_type = "keys:s,hold-time:i?", 556 .params = "keys [hold_ms]", 557 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)", 558 .mhandler.cmd = hmp_send_key, 559 }, 560 561STEXI 562@item sendkey @var{keys} 563@findex sendkey 564 565Send @var{keys} to the guest. @var{keys} could be the name of the 566key or the raw value in hexadecimal format. Use @code{-} to press 567several keys simultaneously. Example: 568@example 569sendkey ctrl-alt-f1 570@end example 571 572This command is useful to send keys that your graphical user interface 573intercepts at low level, such as @code{ctrl-alt-f1} in X Window. 574ETEXI 575 576 { 577 .name = "system_reset", 578 .args_type = "", 579 .params = "", 580 .help = "reset the system", 581 .mhandler.cmd = hmp_system_reset, 582 }, 583 584STEXI 585@item system_reset 586@findex system_reset 587 588Reset the system. 589ETEXI 590 591 { 592 .name = "system_powerdown", 593 .args_type = "", 594 .params = "", 595 .help = "send system power down event", 596 .mhandler.cmd = hmp_system_powerdown, 597 }, 598 599STEXI 600@item system_powerdown 601@findex system_powerdown 602 603Power down the system (if supported). 604ETEXI 605 606 { 607 .name = "sum", 608 .args_type = "start:i,size:i", 609 .params = "addr size", 610 .help = "compute the checksum of a memory region", 611 .mhandler.cmd = do_sum, 612 }, 613 614STEXI 615@item sum @var{addr} @var{size} 616@findex sum 617 618Compute the checksum of a memory region. 619ETEXI 620 621 { 622 .name = "usb_add", 623 .args_type = "devname:s", 624 .params = "device", 625 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')", 626 .mhandler.cmd = do_usb_add, 627 }, 628 629STEXI 630@item usb_add @var{devname} 631@findex usb_add 632 633Add the USB device @var{devname}. For details of available devices see 634@ref{usb_devices} 635ETEXI 636 637 { 638 .name = "usb_del", 639 .args_type = "devname:s", 640 .params = "device", 641 .help = "remove USB device 'bus.addr'", 642 .mhandler.cmd = do_usb_del, 643 }, 644 645STEXI 646@item usb_del @var{devname} 647@findex usb_del 648 649Remove the USB device @var{devname} from the QEMU virtual USB 650hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor 651command @code{info usb} to see the devices you can remove. 652ETEXI 653 654 { 655 .name = "device_add", 656 .args_type = "device:O", 657 .params = "driver[,prop=value][,...]", 658 .help = "add device, like -device on the command line", 659 .user_print = monitor_user_noop, 660 .mhandler.cmd_new = do_device_add, 661 }, 662 663STEXI 664@item device_add @var{config} 665@findex device_add 666 667Add device. 668ETEXI 669 670 { 671 .name = "device_del", 672 .args_type = "id:s", 673 .params = "device", 674 .help = "remove device", 675 .mhandler.cmd = hmp_device_del, 676 }, 677 678STEXI 679@item device_del @var{id} 680@findex device_del 681 682Remove device @var{id}. 683ETEXI 684 685 { 686 .name = "cpu", 687 .args_type = "index:i", 688 .params = "index", 689 .help = "set the default CPU", 690 .mhandler.cmd = hmp_cpu, 691 }, 692 693STEXI 694@item cpu @var{index} 695@findex cpu 696Set the default CPU. 697ETEXI 698 699 { 700 .name = "mouse_move", 701 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 702 .params = "dx dy [dz]", 703 .help = "send mouse move events", 704 .mhandler.cmd = do_mouse_move, 705 }, 706 707STEXI 708@item mouse_move @var{dx} @var{dy} [@var{dz}] 709@findex mouse_move 710Move the active mouse to the specified coordinates @var{dx} @var{dy} 711with optional scroll axis @var{dz}. 712ETEXI 713 714 { 715 .name = "mouse_button", 716 .args_type = "button_state:i", 717 .params = "state", 718 .help = "change mouse button state (1=L, 2=M, 4=R)", 719 .mhandler.cmd = do_mouse_button, 720 }, 721 722STEXI 723@item mouse_button @var{val} 724@findex mouse_button 725Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 726ETEXI 727 728 { 729 .name = "mouse_set", 730 .args_type = "index:i", 731 .params = "index", 732 .help = "set which mouse device receives events", 733 .mhandler.cmd = do_mouse_set, 734 }, 735 736STEXI 737@item mouse_set @var{index} 738@findex mouse_set 739Set which mouse device receives events at given @var{index}, index 740can be obtained with 741@example 742info mice 743@end example 744ETEXI 745 746 { 747 .name = "wavcapture", 748 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 749 .params = "path [frequency [bits [channels]]]", 750 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 751 .mhandler.cmd = do_wav_capture, 752 }, 753STEXI 754@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 755@findex wavcapture 756Capture audio into @var{filename}. Using sample rate @var{frequency} 757bits per sample @var{bits} and number of channels @var{channels}. 758 759Defaults: 760@itemize @minus 761@item Sample rate = 44100 Hz - CD quality 762@item Bits = 16 763@item Number of channels = 2 - Stereo 764@end itemize 765ETEXI 766 767 { 768 .name = "stopcapture", 769 .args_type = "n:i", 770 .params = "capture index", 771 .help = "stop capture", 772 .mhandler.cmd = do_stop_capture, 773 }, 774STEXI 775@item stopcapture @var{index} 776@findex stopcapture 777Stop capture with a given @var{index}, index can be obtained with 778@example 779info capture 780@end example 781ETEXI 782 783 { 784 .name = "memsave", 785 .args_type = "val:l,size:i,filename:s", 786 .params = "addr size file", 787 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 788 .mhandler.cmd = hmp_memsave, 789 }, 790 791STEXI 792@item memsave @var{addr} @var{size} @var{file} 793@findex memsave 794save to disk virtual memory dump starting at @var{addr} of size @var{size}. 795ETEXI 796 797 { 798 .name = "pmemsave", 799 .args_type = "val:l,size:i,filename:s", 800 .params = "addr size file", 801 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 802 .mhandler.cmd = hmp_pmemsave, 803 }, 804 805STEXI 806@item pmemsave @var{addr} @var{size} @var{file} 807@findex pmemsave 808save to disk physical memory dump starting at @var{addr} of size @var{size}. 809ETEXI 810 811 { 812 .name = "boot_set", 813 .args_type = "bootdevice:s", 814 .params = "bootdevice", 815 .help = "define new values for the boot device list", 816 .mhandler.cmd = do_boot_set, 817 }, 818 819STEXI 820@item boot_set @var{bootdevicelist} 821@findex boot_set 822 823Define new values for the boot device list. Those values will override 824the values specified on the command line through the @code{-boot} option. 825 826The values that can be specified here depend on the machine type, but are 827the same that can be specified in the @code{-boot} command line option. 828ETEXI 829 830#if defined(TARGET_I386) || defined(TARGET_S390X) 831 { 832 .name = "nmi", 833 .args_type = "", 834 .params = "", 835 .help = "inject an NMI on all guest's CPUs", 836 .mhandler.cmd = hmp_inject_nmi, 837 }, 838#endif 839STEXI 840@item nmi @var{cpu} 841@findex nmi 842Inject an NMI (x86) or RESTART (s390x) on the given CPU. 843 844ETEXI 845 846 { 847 .name = "ringbuf_write", 848 .args_type = "device:s,data:s", 849 .params = "device data", 850 .help = "Write to a ring buffer character device", 851 .mhandler.cmd = hmp_ringbuf_write, 852 }, 853 854STEXI 855@item ringbuf_write @var{device} @var{data} 856@findex ringbuf_write 857Write @var{data} to ring buffer character device @var{device}. 858@var{data} must be a UTF-8 string. 859 860ETEXI 861 862 { 863 .name = "ringbuf_read", 864 .args_type = "device:s,size:i", 865 .params = "device size", 866 .help = "Read from a ring buffer character device", 867 .mhandler.cmd = hmp_ringbuf_read, 868 }, 869 870STEXI 871@item ringbuf_read @var{device} 872@findex ringbuf_read 873Read and print up to @var{size} bytes from ring buffer character 874device @var{device}. 875Certain non-printable characters are printed \uXXXX, where XXXX is the 876character code in hexadecimal. Character \ is printed \\. 877Bug: can screw up when the buffer contains invalid UTF-8 sequences, 878NUL characters, after the ring buffer lost data, and when reading 879stops because the size limit is reached. 880 881ETEXI 882 883 { 884 .name = "migrate", 885 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 886 .params = "[-d] [-b] [-i] uri", 887 .help = "migrate to URI (using -d to not wait for completion)" 888 "\n\t\t\t -b for migration without shared storage with" 889 " full copy of disk\n\t\t\t -i for migration without " 890 "shared storage with incremental copy of disk " 891 "(base image shared between src and destination)", 892 .mhandler.cmd = hmp_migrate, 893 }, 894 895 896STEXI 897@item migrate [-d] [-b] [-i] @var{uri} 898@findex migrate 899Migrate to @var{uri} (using -d to not wait for completion). 900 -b for migration with full copy of disk 901 -i for migration with incremental copy of disk (base image is shared) 902ETEXI 903 904 { 905 .name = "migrate_cancel", 906 .args_type = "", 907 .params = "", 908 .help = "cancel the current VM migration", 909 .mhandler.cmd = hmp_migrate_cancel, 910 }, 911 912STEXI 913@item migrate_cancel 914@findex migrate_cancel 915Cancel the current VM migration. 916 917ETEXI 918 919 { 920 .name = "migrate_set_cache_size", 921 .args_type = "value:o", 922 .params = "value", 923 .help = "set cache size (in bytes) for XBZRLE migrations," 924 "the cache size will be rounded down to the nearest " 925 "power of 2.\n" 926 "The cache size affects the number of cache misses." 927 "In case of a high cache miss ratio you need to increase" 928 " the cache size", 929 .mhandler.cmd = hmp_migrate_set_cache_size, 930 }, 931 932STEXI 933@item migrate_set_cache_size @var{value} 934@findex migrate_set_cache_size 935Set cache size to @var{value} (in bytes) for xbzrle migrations. 936ETEXI 937 938 { 939 .name = "migrate_set_speed", 940 .args_type = "value:o", 941 .params = "value", 942 .help = "set maximum speed (in bytes) for migrations. " 943 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 944 .mhandler.cmd = hmp_migrate_set_speed, 945 }, 946 947STEXI 948@item migrate_set_speed @var{value} 949@findex migrate_set_speed 950Set maximum speed to @var{value} (in bytes) for migrations. 951ETEXI 952 953 { 954 .name = "migrate_set_downtime", 955 .args_type = "value:T", 956 .params = "value", 957 .help = "set maximum tolerated downtime (in seconds) for migrations", 958 .mhandler.cmd = hmp_migrate_set_downtime, 959 }, 960 961STEXI 962@item migrate_set_downtime @var{second} 963@findex migrate_set_downtime 964Set maximum tolerated downtime (in seconds) for migration. 965ETEXI 966 967 { 968 .name = "migrate_set_capability", 969 .args_type = "capability:s,state:b", 970 .params = "capability state", 971 .help = "Enable/Disable the usage of a capability for migration", 972 .mhandler.cmd = hmp_migrate_set_capability, 973 }, 974 975STEXI 976@item migrate_set_capability @var{capability} @var{state} 977@findex migrate_set_capability 978Enable/Disable the usage of a capability @var{capability} for migration. 979ETEXI 980 981 { 982 .name = "client_migrate_info", 983 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 984 .params = "protocol hostname port tls-port cert-subject", 985 .help = "send migration info to spice/vnc client", 986 .user_print = monitor_user_noop, 987 .mhandler.cmd_async = client_migrate_info, 988 .flags = MONITOR_CMD_ASYNC, 989 }, 990 991STEXI 992@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 993@findex client_migrate_info 994Set the spice/vnc connection info for the migration target. The spice/vnc 995server will ask the spice/vnc client to automatically reconnect using the 996new parameters (if specified) once the vm migration finished successfully. 997ETEXI 998 999 { 1000 .name = "dump-guest-memory",
1001 .args_type = "paging:-p,filename:F,begin:i?,length:i?", 1002 .params = "[-p] filename [begin] [length]", 1003 .help = "dump guest memory to file" 1004 "\n\t\t\t begin(optional): the starting physical address" 1005 "\n\t\t\t length(optional): the memory size, in bytes", 1006 .mhandler.cmd = hmp_dump_guest_memory, 1007 }, 1008 1009 1010STEXI 1011@item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length} 1012@findex dump-guest-memory 1013Dump guest memory to @var{protocol}. The file can be processed with crash or 1014gdb. 1015 filename: dump file name 1016 paging: do paging to get guest's memory mapping 1017 begin: the starting physical address. It's optional, and should be 1018 specified with length together. 1019 length: the memory size, in bytes. It's optional, and should be specified 1020 with begin together. 1021ETEXI 1022 1023 { 1024 .name = "snapshot_blkdev", 1025 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1026 .params = "[-n] device [new-image-file] [format]", 1027 .help = "initiates a live snapshot\n\t\t\t" 1028 "of device. If a new image file is specified, the\n\t\t\t" 1029 "new image file will become the new root image.\n\t\t\t" 1030 "If format is specified, the snapshot file will\n\t\t\t" 1031 "be created in that format.\n\t\t\t" 1032 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1033 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1034 "recreating it from scratch.", 1035 .mhandler.cmd = hmp_snapshot_blkdev, 1036 }, 1037 1038STEXI 1039@item snapshot_blkdev 1040@findex snapshot_blkdev 1041Snapshot device, using snapshot file as target if provided 1042ETEXI 1043 1044 { 1045 .name = "snapshot_blkdev_internal", 1046 .args_type = "device:B,name:s", 1047 .params = "device name", 1048 .help = "take an internal snapshot of device.\n\t\t\t" 1049 "The format of the image used by device must\n\t\t\t" 1050 "support it, such as qcow2.\n\t\t\t", 1051 .mhandler.cmd = hmp_snapshot_blkdev_internal, 1052 }, 1053 1054STEXI 1055@item snapshot_blkdev_internal 1056@findex snapshot_blkdev_internal 1057Take an internal snapshot on device if it support 1058ETEXI 1059 1060 { 1061 .name = "snapshot_delete_blkdev_internal", 1062 .args_type = "device:B,name:s,id:s?", 1063 .params = "device name [id]", 1064 .help = "delete an internal snapshot of device.\n\t\t\t" 1065 "If id is specified, qemu will try delete\n\t\t\t" 1066 "the snapshot matching both id and name.\n\t\t\t" 1067 "The format of the image used by device must\n\t\t\t" 1068 "support it, such as qcow2.\n\t\t\t", 1069 .mhandler.cmd = hmp_snapshot_delete_blkdev_internal, 1070 }, 1071 1072STEXI 1073@item snapshot_delete_blkdev_internal 1074@findex snapshot_delete_blkdev_internal 1075Delete an internal snapshot on device if it support 1076ETEXI 1077 1078 { 1079 .name = "drive_mirror", 1080 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1081 .params = "[-n] [-f] device target [format]", 1082 .help = "initiates live storage\n\t\t\t" 1083 "migration for a device. The device's contents are\n\t\t\t" 1084 "copied to the new image file, including data that\n\t\t\t" 1085 "is written after the command is started.\n\t\t\t" 1086 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1087 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1088 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1089 "so that the result does not need a backing file.\n\t\t\t", 1090 .mhandler.cmd = hmp_drive_mirror, 1091 }, 1092STEXI 1093@item drive_mirror 1094@findex drive_mirror 1095Start mirroring a block device's writes to a new destination, 1096using the specified target. 1097ETEXI 1098 1099 { 1100 .name = "drive_backup", 1101 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1102 .params = "[-n] [-f] device target [format]", 1103 .help = "initiates a point-in-time\n\t\t\t" 1104 "copy for a device. The device's contents are\n\t\t\t" 1105 "copied to the new image file, excluding data that\n\t\t\t" 1106 "is written after the command is started.\n\t\t\t" 1107 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1108 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1109 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1110 "so that the result does not need a backing file.\n\t\t\t", 1111 .mhandler.cmd = hmp_drive_backup, 1112 }, 1113STEXI 1114@item drive_backup 1115@findex drive_backup 1116Start a point-in-time copy of a block device to a specificed target. 1117ETEXI 1118 1119 { 1120 .name = "drive_add", 1121 .args_type = "pci_addr:s,opts:s", 1122 .params = "[[<domain>:]<bus>:]<slot>\n" 1123 "[file=file][,if=type][,bus=n]\n" 1124 "[,unit=m][,media=d][,index=i]\n" 1125 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1126 "[,snapshot=on|off][,cache=on|off]\n" 1127 "[,readonly=on|off][,copy-on-read=on|off]", 1128 .help = "add drive to PCI storage controller", 1129 .mhandler.cmd = drive_hot_add, 1130 }, 1131 1132STEXI 1133@item drive_add 1134@findex drive_add 1135Add drive to PCI storage controller. 1136ETEXI 1137 1138#if defined(CONFIG_PCI_HOTPLUG_OLD) 1139 { 1140 .name = "pci_add", 1141 .args_type = "pci_addr:s,type:s,opts:s?", 1142 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...", 1143 .help = "hot-add PCI device", 1144 .mhandler.cmd = pci_device_hot_add, 1145 }, 1146#endif 1147 1148STEXI 1149@item pci_add 1150@findex pci_add 1151Hot-add PCI device. 1152ETEXI 1153 1154#if defined(CONFIG_PCI_HOTPLUG_OLD) 1155 { 1156 .name = "pci_del", 1157 .args_type = "pci_addr:s", 1158 .params = "[[<domain>:]<bus>:]<slot>", 1159 .help = "hot remove PCI device", 1160 .mhandler.cmd = do_pci_device_hot_remove, 1161 }, 1162#endif 1163 1164STEXI 1165@item pci_del 1166@findex pci_del 1167Hot remove PCI device. 1168ETEXI 1169 1170 { 1171 .name = "pcie_aer_inject_error", 1172 .args_type = "advisory_non_fatal:-a,correctable:-c," 1173 "id:s,error_status:s," 1174 "header0:i?,header1:i?,header2:i?,header3:i?," 1175 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1176 .params = "[-a] [-c] id " 1177 "<error_status> [<tlp header> [<tlp header prefix>]]", 1178 .help = "inject pcie aer error\n\t\t\t" 1179 " -a for advisory non fatal error\n\t\t\t" 1180 " -c for correctable error\n\t\t\t" 1181 "<id> = qdev device id\n\t\t\t" 1182 "<error_status> = error string or 32bit\n\t\t\t" 1183 "<tlb header> = 32bit x 4\n\t\t\t" 1184 "<tlb header prefix> = 32bit x 4", 1185 .user_print = pcie_aer_inject_error_print, 1186 .mhandler.cmd_new = do_pcie_aer_inject_error, 1187 }, 1188 1189STEXI 1190@item pcie_aer_inject_error 1191@findex pcie_aer_inject_error 1192Inject PCIe AER error 1193ETEXI 1194 1195 { 1196 .name = "host_net_add", 1197 .args_type = "device:s,opts:s?", 1198 .params = "tap|user|socket|vde|netmap|dump [options]", 1199 .help = "add host VLAN client", 1200 .mhandler.cmd = net_host_device_add, 1201 }, 1202 1203STEXI 1204@item host_net_add 1205@findex host_net_add 1206Add host VLAN client. 1207ETEXI 1208 1209 { 1210 .name = "host_net_remove", 1211 .args_type = "vlan_id:i,device:s", 1212 .params = "vlan_id name", 1213 .help = "remove host VLAN client", 1214 .mhandler.cmd = net_host_device_remove, 1215 }, 1216 1217STEXI 1218@item host_net_remove 1219@findex host_net_remove 1220Remove host VLAN client. 1221ETEXI 1222 1223 { 1224 .name = "netdev_add", 1225 .args_type = "netdev:O", 1226 .params = "[user|tap|socket|hubport|netmap],id=str[,prop=value][,...]", 1227 .help = "add host network device", 1228 .mhandler.cmd = hmp_netdev_add, 1229 }, 1230 1231STEXI 1232@item netdev_add 1233@findex netdev_add 1234Add host network device. 1235ETEXI 1236 1237 { 1238 .name = "netdev_del", 1239 .args_type = "id:s", 1240 .params = "id", 1241 .help = "remove host network device", 1242 .mhandler.cmd = hmp_netdev_del, 1243 }, 1244 1245STEXI 1246@item netdev_del 1247@findex netdev_del 1248Remove host network device. 1249ETEXI 1250 1251 { 1252 .name = "object_add", 1253 .args_type = "object:O", 1254 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1255 .help = "create QOM object", 1256 .mhandler.cmd = hmp_object_add, 1257 }, 1258 1259STEXI 1260@item object_add 1261@findex object_add 1262Create QOM object. 1263ETEXI 1264 1265 { 1266 .name = "object_del", 1267 .args_type = "id:s", 1268 .params = "id", 1269 .help = "destroy QOM object", 1270 .mhandler.cmd = hmp_object_del, 1271 }, 1272 1273STEXI 1274@item object_del 1275@findex object_del 1276Destroy QOM object. 1277ETEXI 1278 1279#ifdef CONFIG_SLIRP 1280 { 1281 .name = "hostfwd_add", 1282 .args_type = "arg1:s,arg2:s?,arg3:s?", 1283 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1284 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1285 .mhandler.cmd = net_slirp_hostfwd_add, 1286 }, 1287#endif 1288STEXI 1289@item hostfwd_add 1290@findex hostfwd_add 1291Redirect TCP or UDP connections from host to guest (requires -net user). 1292ETEXI 1293 1294#ifdef CONFIG_SLIRP 1295 { 1296 .name = "hostfwd_remove", 1297 .args_type = "arg1:s,arg2:s?,arg3:s?", 1298 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport", 1299 .help = "remove host-to-guest TCP or UDP redirection", 1300 .mhandler.cmd = net_slirp_hostfwd_remove, 1301 }, 1302 1303#endif 1304STEXI 1305@item hostfwd_remove 1306@findex hostfwd_remove 1307Remove host-to-guest TCP or UDP redirection. 1308ETEXI 1309 1310 { 1311 .name = "balloon", 1312 .args_type = "value:M", 1313 .params = "target", 1314 .help = "request VM to change its memory allocation (in MB)", 1315 .mhandler.cmd = hmp_balloon, 1316 }, 1317 1318STEXI 1319@item balloon @var{value} 1320@findex balloon 1321Request VM to change its memory allocation to @var{value} (in MB). 1322ETEXI 1323 1324 { 1325 .name = "set_link", 1326 .args_type = "name:s,up:b", 1327 .params = "name on|off", 1328 .help = "change the link status of a network adapter", 1329 .mhandler.cmd = hmp_set_link, 1330 }, 1331 1332STEXI 1333@item set_link @var{name} [on|off] 1334@findex set_link 1335Switch link @var{name} on (i.e. up) or off (i.e. down). 1336ETEXI 1337 1338 { 1339 .name = "watchdog_action", 1340 .args_type = "action:s", 1341 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1342 .help = "change watchdog action", 1343 .mhandler.cmd = do_watchdog_action, 1344 }, 1345 1346STEXI 1347@item watchdog_action 1348@findex watchdog_action 1349Change watchdog action. 1350ETEXI 1351 1352 { 1353 .name = "acl_show", 1354 .args_type = "aclname:s", 1355 .params = "aclname", 1356 .help = "list rules in the access control list", 1357 .mhandler.cmd = do_acl_show, 1358 }, 1359 1360STEXI 1361@item acl_show @var{aclname} 1362@findex acl_show 1363List all the matching rules in the access control list, and the default 1364policy. There are currently two named access control lists, 1365@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1366certificate distinguished name, and SASL username respectively. 1367ETEXI 1368 1369 { 1370 .name = "acl_policy", 1371 .args_type = "aclname:s,policy:s", 1372 .params = "aclname allow|deny", 1373 .help = "set default access control list policy", 1374 .mhandler.cmd = do_acl_policy, 1375 }, 1376 1377STEXI 1378@item acl_policy @var{aclname} @code{allow|deny} 1379@findex acl_policy 1380Set the default access control list policy, used in the event that 1381none of the explicit rules match. The default policy at startup is 1382always @code{deny}. 1383ETEXI 1384 1385 { 1386 .name = "acl_add", 1387 .args_type = "aclname:s,match:s,policy:s,index:i?", 1388 .params = "aclname match allow|deny [index]", 1389 .help = "add a match rule to the access control list", 1390 .mhandler.cmd = do_acl_add, 1391 }, 1392 1393STEXI 1394@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1395@findex acl_add 1396Add a match rule to the access control list, allowing or denying access. 1397The match will normally be an exact username or x509 distinguished name, 1398but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1399allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1400normally be appended to the end of the ACL, but can be inserted 1401earlier in the list if the optional @var{index} parameter is supplied. 1402ETEXI 1403 1404 { 1405 .name = "acl_remove", 1406 .args_type = "aclname:s,match:s", 1407 .params = "aclname match", 1408 .help = "remove a match rule from the access control list", 1409 .mhandler.cmd = do_acl_remove, 1410 }, 1411 1412STEXI 1413@item acl_remove @var{aclname} @var{match} 1414@findex acl_remove 1415Remove the specified match rule from the access control list. 1416ETEXI 1417 1418 { 1419 .name = "acl_reset", 1420 .args_type = "aclname:s", 1421 .params = "aclname", 1422 .help = "reset the access control list", 1423 .mhandler.cmd = do_acl_reset, 1424 }, 1425 1426STEXI 1427@item acl_reset @var{aclname} 1428@findex acl_reset 1429Remove all matches from the access control list, and set the default 1430policy back to @code{deny}. 1431ETEXI 1432 1433 { 1434 .name = "nbd_server_start", 1435 .args_type = "all:-a,writable:-w,uri:s", 1436 .params = "nbd_server_start [-a] [-w] host:port", 1437 .help = "serve block devices on the given host and port", 1438 .mhandler.cmd = hmp_nbd_server_start, 1439 }, 1440STEXI 1441@item nbd_server_start @var{host}:@var{port} 1442@findex nbd_server_start 1443Start an NBD server on the given host and/or port. If the @option{-a} 1444option is included, all of the virtual machine's block devices that 1445have an inserted media on them are automatically exported; in this case, 1446the @option{-w} option makes the devices writable too. 1447ETEXI 1448 1449 { 1450 .name = "nbd_server_add", 1451 .args_type = "writable:-w,device:B", 1452 .params = "nbd_server_add [-w] device", 1453 .help = "export a block device via NBD", 1454 .mhandler.cmd = hmp_nbd_server_add, 1455 }, 1456STEXI 1457@item nbd_server_add @var{device} 1458@findex nbd_server_add 1459Export a block device through QEMU's NBD server, which must be started 1460beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1461exported device writable too. 1462ETEXI 1463 1464 { 1465 .name = "nbd_server_stop", 1466 .args_type = "", 1467 .params = "nbd_server_stop", 1468 .help = "stop serving block devices using the NBD protocol", 1469 .mhandler.cmd = hmp_nbd_server_stop, 1470 }, 1471STEXI 1472@item nbd_server_stop 1473@findex nbd_server_stop 1474Stop the QEMU embedded NBD server. 1475ETEXI 1476 1477 1478#if defined(TARGET_I386) 1479 1480 { 1481 .name = "mce", 1482 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1483 .params = "[-b] cpu bank status mcgstatus addr misc", 1484 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1485 .mhandler.cmd = do_inject_mce, 1486 }, 1487 1488#endif 1489STEXI 1490@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1491@findex mce (x86) 1492Inject an MCE on the given CPU (x86 only). 1493ETEXI 1494 1495 { 1496 .name = "getfd", 1497 .args_type = "fdname:s", 1498 .params = "getfd name", 1499 .help = "receive a file descriptor via SCM rights and assign it a name", 1500 .mhandler.cmd = hmp_getfd, 1501 }, 1502 1503STEXI 1504@item getfd @var{fdname} 1505@findex getfd 1506If a file descriptor is passed alongside this command using the SCM_RIGHTS 1507mechanism on unix sockets, it is stored using the name @var{fdname} for 1508later use by other monitor commands. 1509ETEXI 1510 1511 { 1512 .name = "closefd", 1513 .args_type = "fdname:s", 1514 .params = "closefd name", 1515 .help = "close a file descriptor previously passed via SCM rights", 1516 .mhandler.cmd = hmp_closefd, 1517 }, 1518 1519STEXI 1520@item closefd @var{fdname} 1521@findex closefd 1522Close the file descriptor previously assigned to @var{fdname} using the 1523@code{getfd} command. This is only needed if the file descriptor was never 1524used by another monitor command. 1525ETEXI 1526 1527 { 1528 .name = "block_passwd", 1529 .args_type = "device:B,password:s", 1530 .params = "block_passwd device password", 1531 .help = "set the password of encrypted block devices", 1532 .mhandler.cmd = hmp_block_passwd, 1533 }, 1534 1535STEXI 1536@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1537@findex block_set_io_throttle 1538Change 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} 1539ETEXI 1540 1541 { 1542 .name = "block_set_io_throttle", 1543 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1544 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1545 .help = "change I/O throttle limits for a block drive", 1546 .mhandler.cmd = hmp_block_set_io_throttle, 1547 }, 1548 1549STEXI 1550@item block_passwd @var{device} @var{password} 1551@findex block_passwd 1552Set the encrypted device @var{device} password to @var{password} 1553ETEXI 1554 1555 { 1556 .name = "set_password", 1557 .args_type = "protocol:s,password:s,connected:s?", 1558 .params = "protocol password action-if-connected", 1559 .help = "set spice/vnc password", 1560 .mhandler.cmd = hmp_set_password, 1561 }, 1562 1563STEXI 1564@item set_password [ vnc | spice ] password [ action-if-connected ] 1565@findex set_password 1566 1567Change spice/vnc password. Use zero to make the password stay valid 1568forever. @var{action-if-connected} specifies what should happen in 1569case a connection is established: @var{fail} makes the password change 1570fail. @var{disconnect} changes the password and disconnects the 1571client. @var{keep} changes the password and keeps the connection up. 1572@var{keep} is the default. 1573ETEXI 1574 1575 { 1576 .name = "expire_password", 1577 .args_type = "protocol:s,time:s", 1578 .params = "protocol time", 1579 .help = "set spice/vnc password expire-time", 1580 .mhandler.cmd = hmp_expire_password, 1581 }, 1582 1583STEXI 1584@item expire_password [ vnc | spice ] expire-time 1585@findex expire_password 1586 1587Specify when a password for spice/vnc becomes 1588invalid. @var{expire-time} accepts: 1589 1590@table @var 1591@item now 1592Invalidate password instantly. 1593 1594@item never 1595Password stays valid forever. 1596 1597@item +nsec 1598Password stays valid for @var{nsec} seconds starting now. 1599 1600@item nsec 1601Password is invalidated at the given time. @var{nsec} are the seconds 1602passed since 1970, i.e. unix epoch. 1603 1604@end table 1605ETEXI 1606 1607 { 1608 .name = "chardev-add", 1609 .args_type = "args:s", 1610 .params = "args", 1611 .help = "add chardev", 1612 .mhandler.cmd = hmp_chardev_add, 1613 }, 1614 1615STEXI 1616@item chardev_add args 1617@findex chardev_add 1618 1619chardev_add accepts the same parameters as the -chardev command line switch. 1620 1621ETEXI 1622 1623 { 1624 .name = "chardev-remove", 1625 .args_type = "id:s", 1626 .params = "id", 1627 .help = "remove chardev", 1628 .mhandler.cmd = hmp_chardev_remove, 1629 }, 1630 1631STEXI 1632@item chardev_remove id 1633@findex chardev_remove 1634 1635Removes the chardev @var{id}. 1636 1637ETEXI 1638 1639 { 1640 .name = "qemu-io", 1641 .args_type = "device:B,command:s", 1642 .params = "[device] \"[command]\"", 1643 .help = "run a qemu-io command on a block device", 1644 .mhandler.cmd = hmp_qemu_io, 1645 }, 1646 1647STEXI 1648@item qemu-io @var{device} @var{command} 1649@findex qemu-io 1650 1651Executes a qemu-io command on the given block device. 1652 1653ETEXI 1654 1655 { 1656 .name = "cpu-add", 1657 .args_type = "id:i", 1658 .params = "id", 1659 .help = "add cpu", 1660 .mhandler.cmd = hmp_cpu_add, 1661 }, 1662 1663STEXI 1664@item cpu-add @var{id} 1665Add CPU with id @var{id} 1666ETEXI 1667 1668 { 1669 .name = "info", 1670 .args_type = "item:s?", 1671 .params = "[subcommand]", 1672 .help = "show various information about the system state", 1673 .mhandler.cmd = do_info_help, 1674 .sub_table = info_cmds, 1675 }, 1676 1677STEXI 1678@item info @var{subcommand} 1679@findex info 1680Show various information about the system state. 1681 1682@table @option 1683@item info version 1684show the version of QEMU 1685@item info network 1686show the various VLANs and the associated devices 1687@item info chardev 1688show the character devices 1689@item info block 1690show the block devices 1691@item info blockstats 1692show block device statistics 1693@item info registers 1694show the cpu registers 1695@item info cpus 1696show infos for each CPU 1697@item info history 1698show the command line history 1699@item info irq 1700show the interrupts statistics (if available) 1701@item info pic 1702show i8259 (PIC) state 1703@item info pci 1704show emulated PCI device info 1705@item info tlb 1706show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only) 1707@item info mem 1708show the active virtual memory mappings (i386 only) 1709@item info jit 1710show dynamic compiler info 1711@item info numa 1712show NUMA information 1713@item info kvm 1714show KVM information 1715@item info usb 1716show USB devices plugged on the virtual USB hub 1717@item info usbhost 1718show all USB host devices 1719@item info profile 1720show profiling information 1721@item info capture 1722show information about active capturing 1723@item info snapshots 1724show list of VM snapshots 1725@item info status 1726show the current VM status (running|paused) 1727@item info pcmcia 1728show guest PCMCIA status 1729@item info mice 1730show which guest mouse is receiving events 1731@item info vnc 1732show the vnc server status 1733@item info name 1734show the current VM name 1735@item info uuid 1736show the current VM UUID 1737@item info cpustats 1738show CPU statistics 1739@item info usernet 1740show user network stack connection states 1741@item info migrate 1742show migration status 1743@item info migrate_capabilities 1744show current migration capabilities 1745@item info migrate_cache_size 1746show current migration XBZRLE cache size 1747@item info balloon 1748show balloon information 1749@item info qtree 1750show device tree 1751@item info qdm 1752show qdev device model list 1753@item info roms 1754show roms 1755@item info tpm 1756show the TPM device 1757@end table 1758ETEXI 1759 1760STEXI 1761@item info trace-events 1762show available trace events and their state 1763ETEXI 1764 1765STEXI 1766@end table 1767ETEXI 1768