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:B", 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 .command_completion = device_add_completion, 662 }, 663 664STEXI 665@item device_add @var{config} 666@findex device_add 667 668Add device. 669ETEXI 670 671 { 672 .name = "device_del", 673 .args_type = "id:s", 674 .params = "device", 675 .help = "remove device", 676 .mhandler.cmd = hmp_device_del, 677 .command_completion = device_del_completion, 678 }, 679 680STEXI 681@item device_del @var{id} 682@findex device_del 683 684Remove device @var{id}. 685ETEXI 686 687 { 688 .name = "cpu", 689 .args_type = "index:i", 690 .params = "index", 691 .help = "set the default CPU", 692 .mhandler.cmd = hmp_cpu, 693 }, 694 695STEXI 696@item cpu @var{index} 697@findex cpu 698Set the default CPU. 699ETEXI 700 701 { 702 .name = "mouse_move", 703 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 704 .params = "dx dy [dz]", 705 .help = "send mouse move events", 706 .mhandler.cmd = do_mouse_move, 707 }, 708 709STEXI 710@item mouse_move @var{dx} @var{dy} [@var{dz}] 711@findex mouse_move 712Move the active mouse to the specified coordinates @var{dx} @var{dy} 713with optional scroll axis @var{dz}. 714ETEXI 715 716 { 717 .name = "mouse_button", 718 .args_type = "button_state:i", 719 .params = "state", 720 .help = "change mouse button state (1=L, 2=M, 4=R)", 721 .mhandler.cmd = do_mouse_button, 722 }, 723 724STEXI 725@item mouse_button @var{val} 726@findex mouse_button 727Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 728ETEXI 729 730 { 731 .name = "mouse_set", 732 .args_type = "index:i", 733 .params = "index", 734 .help = "set which mouse device receives events", 735 .mhandler.cmd = do_mouse_set, 736 }, 737 738STEXI 739@item mouse_set @var{index} 740@findex mouse_set 741Set which mouse device receives events at given @var{index}, index 742can be obtained with 743@example 744info mice 745@end example 746ETEXI 747 748 { 749 .name = "wavcapture", 750 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 751 .params = "path [frequency [bits [channels]]]", 752 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 753 .mhandler.cmd = do_wav_capture, 754 }, 755STEXI 756@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 757@findex wavcapture 758Capture audio into @var{filename}. Using sample rate @var{frequency} 759bits per sample @var{bits} and number of channels @var{channels}. 760 761Defaults: 762@itemize @minus 763@item Sample rate = 44100 Hz - CD quality 764@item Bits = 16 765@item Number of channels = 2 - Stereo 766@end itemize 767ETEXI 768 769 { 770 .name = "stopcapture", 771 .args_type = "n:i", 772 .params = "capture index", 773 .help = "stop capture", 774 .mhandler.cmd = do_stop_capture, 775 }, 776STEXI 777@item stopcapture @var{index} 778@findex stopcapture 779Stop capture with a given @var{index}, index can be obtained with 780@example 781info capture 782@end example 783ETEXI 784 785 { 786 .name = "memsave", 787 .args_type = "val:l,size:i,filename:s", 788 .params = "addr size file", 789 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 790 .mhandler.cmd = hmp_memsave, 791 }, 792 793STEXI 794@item memsave @var{addr} @var{size} @var{file} 795@findex memsave 796save to disk virtual memory dump starting at @var{addr} of size @var{size}. 797ETEXI 798 799 { 800 .name = "pmemsave", 801 .args_type = "val:l,size:i,filename:s", 802 .params = "addr size file", 803 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 804 .mhandler.cmd = hmp_pmemsave, 805 }, 806 807STEXI 808@item pmemsave @var{addr} @var{size} @var{file} 809@findex pmemsave 810save to disk physical memory dump starting at @var{addr} of size @var{size}. 811ETEXI 812 813 { 814 .name = "boot_set", 815 .args_type = "bootdevice:s", 816 .params = "bootdevice", 817 .help = "define new values for the boot device list", 818 .mhandler.cmd = do_boot_set, 819 }, 820 821STEXI 822@item boot_set @var{bootdevicelist} 823@findex boot_set 824 825Define new values for the boot device list. Those values will override 826the values specified on the command line through the @code{-boot} option. 827 828The values that can be specified here depend on the machine type, but are 829the same that can be specified in the @code{-boot} command line option. 830ETEXI 831 832#if defined(TARGET_I386) || defined(TARGET_S390X) 833 { 834 .name = "nmi", 835 .args_type = "", 836 .params = "", 837 .help = "inject an NMI on all guest's CPUs", 838 .mhandler.cmd = hmp_inject_nmi, 839 }, 840#endif 841STEXI 842@item nmi @var{cpu} 843@findex nmi 844Inject an NMI (x86) or RESTART (s390x) on the given CPU. 845 846ETEXI 847 848 { 849 .name = "ringbuf_write", 850 .args_type = "device:s,data:s", 851 .params = "device data", 852 .help = "Write to a ring buffer character device", 853 .mhandler.cmd = hmp_ringbuf_write, 854 }, 855 856STEXI 857@item ringbuf_write @var{device} @var{data} 858@findex ringbuf_write 859Write @var{data} to ring buffer character device @var{device}. 860@var{data} must be a UTF-8 string. 861 862ETEXI 863 864 { 865 .name = "ringbuf_read", 866 .args_type = "device:s,size:i", 867 .params = "device size", 868 .help = "Read from a ring buffer character device", 869 .mhandler.cmd = hmp_ringbuf_read, 870 }, 871 872STEXI 873@item ringbuf_read @var{device} 874@findex ringbuf_read 875Read and print up to @var{size} bytes from ring buffer character 876device @var{device}. 877Certain non-printable characters are printed \uXXXX, where XXXX is the 878character code in hexadecimal. Character \ is printed \\. 879Bug: can screw up when the buffer contains invalid UTF-8 sequences, 880NUL characters, after the ring buffer lost data, and when reading 881stops because the size limit is reached. 882 883ETEXI 884 885 { 886 .name = "migrate", 887 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 888 .params = "[-d] [-b] [-i] uri", 889 .help = "migrate to URI (using -d to not wait for completion)" 890 "\n\t\t\t -b for migration without shared storage with" 891 " full copy of disk\n\t\t\t -i for migration without " 892 "shared storage with incremental copy of disk " 893 "(base image shared between src and destination)", 894 .mhandler.cmd = hmp_migrate, 895 }, 896 897 898STEXI 899@item migrate [-d] [-b] [-i] @var{uri} 900@findex migrate 901Migrate to @var{uri} (using -d to not wait for completion). 902 -b for migration with full copy of disk 903 -i for migration with incremental copy of disk (base image is shared) 904ETEXI 905 906 { 907 .name = "migrate_cancel", 908 .args_type = "", 909 .params = "", 910 .help = "cancel the current VM migration", 911 .mhandler.cmd = hmp_migrate_cancel, 912 }, 913 914STEXI 915@item migrate_cancel 916@findex migrate_cancel 917Cancel the current VM migration. 918 919ETEXI 920 921 { 922 .name = "migrate_set_cache_size", 923 .args_type = "value:o", 924 .params = "value", 925 .help = "set cache size (in bytes) for XBZRLE migrations," 926 "the cache size will be rounded down to the nearest " 927 "power of 2.\n" 928 "The cache size affects the number of cache misses." 929 "In case of a high cache miss ratio you need to increase" 930 " the cache size", 931 .mhandler.cmd = hmp_migrate_set_cache_size, 932 }, 933 934STEXI 935@item migrate_set_cache_size @var{value} 936@findex migrate_set_cache_size 937Set cache size to @var{value} (in bytes) for xbzrle migrations. 938ETEXI 939 940 { 941 .name = "migrate_set_speed", 942 .args_type = "value:o", 943 .params = "value", 944 .help = "set maximum speed (in bytes) for migrations. " 945 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 946 .mhandler.cmd = hmp_migrate_set_speed, 947 }, 948 949STEXI 950@item migrate_set_speed @var{value} 951@findex migrate_set_speed 952Set maximum speed to @var{value} (in bytes) for migrations. 953ETEXI 954 955 { 956 .name = "migrate_set_downtime", 957 .args_type = "value:T", 958 .params = "value", 959 .help = "set maximum tolerated downtime (in seconds) for migrations", 960 .mhandler.cmd = hmp_migrate_set_downtime, 961 }, 962 963STEXI 964@item migrate_set_downtime @var{second} 965@findex migrate_set_downtime 966Set maximum tolerated downtime (in seconds) for migration. 967ETEXI 968 969 { 970 .name = "migrate_set_capability", 971 .args_type = "capability:s,state:b", 972 .params = "capability state", 973 .help = "Enable/Disable the usage of a capability for migration", 974 .mhandler.cmd = hmp_migrate_set_capability, 975 }, 976 977STEXI 978@item migrate_set_capability @var{capability} @var{state} 979@findex migrate_set_capability 980Enable/Disable the usage of a capability @var{capability} for migration. 981ETEXI 982 983 { 984 .name = "client_migrate_info", 985 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 986 .params = "protocol hostname port tls-port cert-subject", 987 .help = "send migration info to spice/vnc client", 988 .user_print = monitor_user_noop, 989 .mhandler.cmd_async = client_migrate_info, 990 .flags = MONITOR_CMD_ASYNC, 991 }, 992 993STEXI 994@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 995@findex client_migrate_info 996Set the spice/vnc connection info for the migration target. The spice/vnc 997server will ask the spice/vnc client to automatically reconnect using the 998new parameters (if specified) once the vm migration finished successfully. 999ETEXI 1000 1001 { 1002 .name = "dump-guest-memory", 1003 .args_type = "paging:-p,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", 1004 .params = "[-p] [-z|-l|-s] filename [begin length]", 1005 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1006 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1007 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1008 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1009 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1010 "begin: the starting physical address.\n\t\t\t" 1011 "length: the memory size, in bytes.", 1012 .mhandler.cmd = hmp_dump_guest_memory, 1013 }, 1014 1015 1016STEXI 1017@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1018@item dump-guest-memory [-z|-l|-s] @var{filename} 1019@findex dump-guest-memory 1020Dump guest memory to @var{protocol}. The file can be processed with crash or 1021gdb. Without -z|-l|-s, the dump format is ELF. 1022 -p: do paging to get guest's memory mapping. 1023 -z: dump in kdump-compressed format, with zlib compression. 1024 -l: dump in kdump-compressed format, with lzo compression. 1025 -s: dump in kdump-compressed format, with snappy compression. 1026 filename: dump file name. 1027 begin: the starting physical address. It's optional, and should be 1028 specified together with length. 1029 length: the memory size, in bytes. It's optional, and should be specified 1030 together with begin. 1031ETEXI 1032 1033 { 1034 .name = "snapshot_blkdev", 1035 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1036 .params = "[-n] device [new-image-file] [format]", 1037 .help = "initiates a live snapshot\n\t\t\t" 1038 "of device. If a new image file is specified, the\n\t\t\t" 1039 "new image file will become the new root image.\n\t\t\t" 1040 "If format is specified, the snapshot file will\n\t\t\t" 1041 "be created in that format.\n\t\t\t" 1042 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1043 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1044 "recreating it from scratch.", 1045 .mhandler.cmd = hmp_snapshot_blkdev, 1046 }, 1047 1048STEXI 1049@item snapshot_blkdev 1050@findex snapshot_blkdev 1051Snapshot device, using snapshot file as target if provided 1052ETEXI 1053 1054 { 1055 .name = "snapshot_blkdev_internal", 1056 .args_type = "device:B,name:s", 1057 .params = "device name", 1058 .help = "take an internal snapshot of device.\n\t\t\t" 1059 "The format of the image used by device must\n\t\t\t" 1060 "support it, such as qcow2.\n\t\t\t", 1061 .mhandler.cmd = hmp_snapshot_blkdev_internal, 1062 }, 1063 1064STEXI 1065@item snapshot_blkdev_internal 1066@findex snapshot_blkdev_internal 1067Take an internal snapshot on device if it support 1068ETEXI 1069 1070 { 1071 .name = "snapshot_delete_blkdev_internal", 1072 .args_type = "device:B,name:s,id:s?", 1073 .params = "device name [id]", 1074 .help = "delete an internal snapshot of device.\n\t\t\t" 1075 "If id is specified, qemu will try delete\n\t\t\t" 1076 "the snapshot matching both id and name.\n\t\t\t" 1077 "The format of the image used by device must\n\t\t\t" 1078 "support it, such as qcow2.\n\t\t\t", 1079 .mhandler.cmd = hmp_snapshot_delete_blkdev_internal, 1080 }, 1081 1082STEXI 1083@item snapshot_delete_blkdev_internal 1084@findex snapshot_delete_blkdev_internal 1085Delete an internal snapshot on device if it support 1086ETEXI 1087 1088 { 1089 .name = "drive_mirror", 1090 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1091 .params = "[-n] [-f] device target [format]", 1092 .help = "initiates live storage\n\t\t\t" 1093 "migration for a device. The device's contents are\n\t\t\t" 1094 "copied to the new image file, including data that\n\t\t\t" 1095 "is written after the command is started.\n\t\t\t" 1096 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1097 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1098 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1099 "so that the result does not need a backing file.\n\t\t\t", 1100 .mhandler.cmd = hmp_drive_mirror, 1101 }, 1102STEXI 1103@item drive_mirror 1104@findex drive_mirror 1105Start mirroring a block device's writes to a new destination, 1106using the specified target. 1107ETEXI 1108 1109 { 1110 .name = "drive_backup", 1111 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1112 .params = "[-n] [-f] device target [format]", 1113 .help = "initiates a point-in-time\n\t\t\t" 1114 "copy for a device. The device's contents are\n\t\t\t" 1115 "copied to the new image file, excluding data that\n\t\t\t" 1116 "is written after the command is started.\n\t\t\t" 1117 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1118 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1119 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1120 "so that the result does not need a backing file.\n\t\t\t", 1121 .mhandler.cmd = hmp_drive_backup, 1122 }, 1123STEXI 1124@item drive_backup 1125@findex drive_backup 1126Start a point-in-time copy of a block device to a specificed target. 1127ETEXI 1128 1129 { 1130 .name = "drive_add", 1131 .args_type = "pci_addr:s,opts:s", 1132 .params = "[[<domain>:]<bus>:]<slot>\n" 1133 "[file=file][,if=type][,bus=n]\n" 1134 "[,unit=m][,media=d][,index=i]\n" 1135 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1136 "[,snapshot=on|off][,cache=on|off]\n" 1137 "[,readonly=on|off][,copy-on-read=on|off]", 1138 .help = "add drive to PCI storage controller", 1139 .mhandler.cmd = drive_hot_add, 1140 }, 1141 1142STEXI 1143@item drive_add 1144@findex drive_add 1145Add drive to PCI storage controller. 1146ETEXI 1147 1148#if defined(CONFIG_PCI_HOTPLUG_OLD) 1149 { 1150 .name = "pci_add", 1151 .args_type = "pci_addr:s,type:s,opts:s?", 1152 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...", 1153 .help = "hot-add PCI device", 1154 .mhandler.cmd = pci_device_hot_add, 1155 }, 1156#endif 1157 1158STEXI 1159@item pci_add 1160@findex pci_add 1161Hot-add PCI device. 1162ETEXI 1163 1164#if defined(CONFIG_PCI_HOTPLUG_OLD) 1165 { 1166 .name = "pci_del", 1167 .args_type = "pci_addr:s", 1168 .params = "[[<domain>:]<bus>:]<slot>", 1169 .help = "hot remove PCI device", 1170 .mhandler.cmd = do_pci_device_hot_remove, 1171 }, 1172#endif 1173 1174STEXI 1175@item pci_del 1176@findex pci_del 1177Hot remove PCI device. 1178ETEXI 1179 1180 { 1181 .name = "pcie_aer_inject_error", 1182 .args_type = "advisory_non_fatal:-a,correctable:-c," 1183 "id:s,error_status:s," 1184 "header0:i?,header1:i?,header2:i?,header3:i?," 1185 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1186 .params = "[-a] [-c] id " 1187 "<error_status> [<tlp header> [<tlp header prefix>]]", 1188 .help = "inject pcie aer error\n\t\t\t" 1189 " -a for advisory non fatal error\n\t\t\t" 1190 " -c for correctable error\n\t\t\t" 1191 "<id> = qdev device id\n\t\t\t" 1192 "<error_status> = error string or 32bit\n\t\t\t" 1193 "<tlb header> = 32bit x 4\n\t\t\t" 1194 "<tlb header prefix> = 32bit x 4", 1195 .user_print = pcie_aer_inject_error_print, 1196 .mhandler.cmd_new = do_pcie_aer_inject_error, 1197 }, 1198 1199STEXI 1200@item pcie_aer_inject_error 1201@findex pcie_aer_inject_error 1202Inject PCIe AER error 1203ETEXI 1204 1205 { 1206 .name = "host_net_add", 1207 .args_type = "device:s,opts:s?", 1208 .params = "tap|user|socket|vde|netmap|dump [options]", 1209 .help = "add host VLAN client", 1210 .mhandler.cmd = net_host_device_add, 1211 }, 1212 1213STEXI 1214@item host_net_add 1215@findex host_net_add 1216Add host VLAN client. 1217ETEXI 1218 1219 { 1220 .name = "host_net_remove", 1221 .args_type = "vlan_id:i,device:s", 1222 .params = "vlan_id name", 1223 .help = "remove host VLAN client", 1224 .mhandler.cmd = net_host_device_remove, 1225 }, 1226 1227STEXI 1228@item host_net_remove 1229@findex host_net_remove 1230Remove host VLAN client. 1231ETEXI 1232 1233 { 1234 .name = "netdev_add", 1235 .args_type = "netdev:O", 1236 .params = "[user|tap|socket|hubport|netmap],id=str[,prop=value][,...]", 1237 .help = "add host network device", 1238 .mhandler.cmd = hmp_netdev_add, 1239 }, 1240 1241STEXI 1242@item netdev_add 1243@findex netdev_add 1244Add host network device. 1245ETEXI 1246 1247 { 1248 .name = "netdev_del", 1249 .args_type = "id:s", 1250 .params = "id", 1251 .help = "remove host network device", 1252 .mhandler.cmd = hmp_netdev_del, 1253 }, 1254 1255STEXI 1256@item netdev_del 1257@findex netdev_del 1258Remove host network device. 1259ETEXI 1260 1261 { 1262 .name = "object_add", 1263 .args_type = "object:O", 1264 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1265 .help = "create QOM object", 1266 .mhandler.cmd = hmp_object_add, 1267 .command_completion = object_add_completion, 1268 }, 1269 1270STEXI 1271@item object_add 1272@findex object_add 1273Create QOM object. 1274ETEXI 1275 1276 { 1277 .name = "object_del", 1278 .args_type = "id:s", 1279 .params = "id", 1280 .help = "destroy QOM object", 1281 .mhandler.cmd = hmp_object_del, 1282 .command_completion = object_del_completion, 1283 }, 1284 1285STEXI 1286@item object_del 1287@findex object_del 1288Destroy QOM object. 1289ETEXI 1290 1291#ifdef CONFIG_SLIRP 1292 { 1293 .name = "hostfwd_add", 1294 .args_type = "arg1:s,arg2:s?,arg3:s?", 1295 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1296 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1297 .mhandler.cmd = net_slirp_hostfwd_add, 1298 }, 1299#endif 1300STEXI 1301@item hostfwd_add 1302@findex hostfwd_add 1303Redirect TCP or UDP connections from host to guest (requires -net user). 1304ETEXI 1305 1306#ifdef CONFIG_SLIRP 1307 { 1308 .name = "hostfwd_remove", 1309 .args_type = "arg1:s,arg2:s?,arg3:s?", 1310 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport", 1311 .help = "remove host-to-guest TCP or UDP redirection", 1312 .mhandler.cmd = net_slirp_hostfwd_remove, 1313 }, 1314 1315#endif 1316STEXI 1317@item hostfwd_remove 1318@findex hostfwd_remove 1319Remove host-to-guest TCP or UDP redirection. 1320ETEXI 1321 1322 { 1323 .name = "balloon", 1324 .args_type = "value:M", 1325 .params = "target", 1326 .help = "request VM to change its memory allocation (in MB)", 1327 .mhandler.cmd = hmp_balloon, 1328 }, 1329 1330STEXI 1331@item balloon @var{value} 1332@findex balloon 1333Request VM to change its memory allocation to @var{value} (in MB). 1334ETEXI 1335 1336 { 1337 .name = "set_link", 1338 .args_type = "name:s,up:b", 1339 .params = "name on|off", 1340 .help = "change the link status of a network adapter", 1341 .mhandler.cmd = hmp_set_link, 1342 }, 1343 1344STEXI 1345@item set_link @var{name} [on|off] 1346@findex set_link 1347Switch link @var{name} on (i.e. up) or off (i.e. down). 1348ETEXI 1349 1350 { 1351 .name = "watchdog_action", 1352 .args_type = "action:s", 1353 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1354 .help = "change watchdog action", 1355 .mhandler.cmd = do_watchdog_action, 1356 }, 1357 1358STEXI 1359@item watchdog_action 1360@findex watchdog_action 1361Change watchdog action. 1362ETEXI 1363 1364 { 1365 .name = "acl_show", 1366 .args_type = "aclname:s", 1367 .params = "aclname", 1368 .help = "list rules in the access control list", 1369 .mhandler.cmd = do_acl_show, 1370 }, 1371 1372STEXI 1373@item acl_show @var{aclname} 1374@findex acl_show 1375List all the matching rules in the access control list, and the default 1376policy. There are currently two named access control lists, 1377@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1378certificate distinguished name, and SASL username respectively. 1379ETEXI 1380 1381 { 1382 .name = "acl_policy", 1383 .args_type = "aclname:s,policy:s", 1384 .params = "aclname allow|deny", 1385 .help = "set default access control list policy", 1386 .mhandler.cmd = do_acl_policy, 1387 }, 1388 1389STEXI 1390@item acl_policy @var{aclname} @code{allow|deny} 1391@findex acl_policy 1392Set the default access control list policy, used in the event that 1393none of the explicit rules match. The default policy at startup is 1394always @code{deny}. 1395ETEXI 1396 1397 { 1398 .name = "acl_add", 1399 .args_type = "aclname:s,match:s,policy:s,index:i?", 1400 .params = "aclname match allow|deny [index]", 1401 .help = "add a match rule to the access control list", 1402 .mhandler.cmd = do_acl_add, 1403 }, 1404 1405STEXI 1406@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1407@findex acl_add 1408Add a match rule to the access control list, allowing or denying access. 1409The match will normally be an exact username or x509 distinguished name, 1410but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1411allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1412normally be appended to the end of the ACL, but can be inserted 1413earlier in the list if the optional @var{index} parameter is supplied. 1414ETEXI 1415 1416 { 1417 .name = "acl_remove", 1418 .args_type = "aclname:s,match:s", 1419 .params = "aclname match", 1420 .help = "remove a match rule from the access control list", 1421 .mhandler.cmd = do_acl_remove, 1422 }, 1423 1424STEXI 1425@item acl_remove @var{aclname} @var{match} 1426@findex acl_remove 1427Remove the specified match rule from the access control list. 1428ETEXI 1429 1430 { 1431 .name = "acl_reset", 1432 .args_type = "aclname:s", 1433 .params = "aclname", 1434 .help = "reset the access control list", 1435 .mhandler.cmd = do_acl_reset, 1436 }, 1437 1438STEXI 1439@item acl_reset @var{aclname} 1440@findex acl_reset 1441Remove all matches from the access control list, and set the default 1442policy back to @code{deny}. 1443ETEXI 1444 1445 { 1446 .name = "nbd_server_start", 1447 .args_type = "all:-a,writable:-w,uri:s", 1448 .params = "nbd_server_start [-a] [-w] host:port", 1449 .help = "serve block devices on the given host and port", 1450 .mhandler.cmd = hmp_nbd_server_start, 1451 }, 1452STEXI 1453@item nbd_server_start @var{host}:@var{port} 1454@findex nbd_server_start 1455Start an NBD server on the given host and/or port. If the @option{-a} 1456option is included, all of the virtual machine's block devices that 1457have an inserted media on them are automatically exported; in this case, 1458the @option{-w} option makes the devices writable too. 1459ETEXI 1460 1461 { 1462 .name = "nbd_server_add", 1463 .args_type = "writable:-w,device:B", 1464 .params = "nbd_server_add [-w] device", 1465 .help = "export a block device via NBD", 1466 .mhandler.cmd = hmp_nbd_server_add, 1467 }, 1468STEXI 1469@item nbd_server_add @var{device} 1470@findex nbd_server_add 1471Export a block device through QEMU's NBD server, which must be started 1472beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1473exported device writable too. 1474ETEXI 1475 1476 { 1477 .name = "nbd_server_stop", 1478 .args_type = "", 1479 .params = "nbd_server_stop", 1480 .help = "stop serving block devices using the NBD protocol", 1481 .mhandler.cmd = hmp_nbd_server_stop, 1482 }, 1483STEXI 1484@item nbd_server_stop 1485@findex nbd_server_stop 1486Stop the QEMU embedded NBD server. 1487ETEXI 1488 1489 1490#if defined(TARGET_I386) 1491 1492 { 1493 .name = "mce", 1494 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1495 .params = "[-b] cpu bank status mcgstatus addr misc", 1496 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1497 .mhandler.cmd = do_inject_mce, 1498 }, 1499 1500#endif 1501STEXI 1502@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1503@findex mce (x86) 1504Inject an MCE on the given CPU (x86 only). 1505ETEXI 1506 1507 { 1508 .name = "getfd", 1509 .args_type = "fdname:s", 1510 .params = "getfd name", 1511 .help = "receive a file descriptor via SCM rights and assign it a name", 1512 .mhandler.cmd = hmp_getfd, 1513 }, 1514 1515STEXI 1516@item getfd @var{fdname} 1517@findex getfd 1518If a file descriptor is passed alongside this command using the SCM_RIGHTS 1519mechanism on unix sockets, it is stored using the name @var{fdname} for 1520later use by other monitor commands. 1521ETEXI 1522 1523 { 1524 .name = "closefd", 1525 .args_type = "fdname:s", 1526 .params = "closefd name", 1527 .help = "close a file descriptor previously passed via SCM rights", 1528 .mhandler.cmd = hmp_closefd, 1529 }, 1530 1531STEXI 1532@item closefd @var{fdname} 1533@findex closefd 1534Close the file descriptor previously assigned to @var{fdname} using the 1535@code{getfd} command. This is only needed if the file descriptor was never 1536used by another monitor command. 1537ETEXI 1538 1539 { 1540 .name = "block_passwd", 1541 .args_type = "device:B,password:s", 1542 .params = "block_passwd device password", 1543 .help = "set the password of encrypted block devices", 1544 .mhandler.cmd = hmp_block_passwd, 1545 }, 1546 1547STEXI 1548@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1549@findex block_set_io_throttle 1550Change 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} 1551ETEXI 1552 1553 { 1554 .name = "block_set_io_throttle", 1555 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1556 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1557 .help = "change I/O throttle limits for a block drive", 1558 .mhandler.cmd = hmp_block_set_io_throttle, 1559 }, 1560 1561STEXI 1562@item block_passwd @var{device} @var{password} 1563@findex block_passwd 1564Set the encrypted device @var{device} password to @var{password} 1565ETEXI 1566 1567 { 1568 .name = "set_password", 1569 .args_type = "protocol:s,password:s,connected:s?", 1570 .params = "protocol password action-if-connected", 1571 .help = "set spice/vnc password", 1572 .mhandler.cmd = hmp_set_password, 1573 }, 1574 1575STEXI 1576@item set_password [ vnc | spice ] password [ action-if-connected ] 1577@findex set_password 1578 1579Change spice/vnc password. Use zero to make the password stay valid 1580forever. @var{action-if-connected} specifies what should happen in 1581case a connection is established: @var{fail} makes the password change 1582fail. @var{disconnect} changes the password and disconnects the 1583client. @var{keep} changes the password and keeps the connection up. 1584@var{keep} is the default. 1585ETEXI 1586 1587 { 1588 .name = "expire_password", 1589 .args_type = "protocol:s,time:s", 1590 .params = "protocol time", 1591 .help = "set spice/vnc password expire-time", 1592 .mhandler.cmd = hmp_expire_password, 1593 }, 1594 1595STEXI 1596@item expire_password [ vnc | spice ] expire-time 1597@findex expire_password 1598 1599Specify when a password for spice/vnc becomes 1600invalid. @var{expire-time} accepts: 1601 1602@table @var 1603@item now 1604Invalidate password instantly. 1605 1606@item never 1607Password stays valid forever. 1608 1609@item +nsec 1610Password stays valid for @var{nsec} seconds starting now. 1611 1612@item nsec 1613Password is invalidated at the given time. @var{nsec} are the seconds 1614passed since 1970, i.e. unix epoch. 1615 1616@end table 1617ETEXI 1618 1619 { 1620 .name = "chardev-add", 1621 .args_type = "args:s", 1622 .params = "args", 1623 .help = "add chardev", 1624 .mhandler.cmd = hmp_chardev_add, 1625 }, 1626 1627STEXI 1628@item chardev_add args 1629@findex chardev_add 1630 1631chardev_add accepts the same parameters as the -chardev command line switch. 1632 1633ETEXI 1634 1635 { 1636 .name = "chardev-remove", 1637 .args_type = "id:s", 1638 .params = "id", 1639 .help = "remove chardev", 1640 .mhandler.cmd = hmp_chardev_remove, 1641 }, 1642 1643STEXI 1644@item chardev_remove id 1645@findex chardev_remove 1646 1647Removes the chardev @var{id}. 1648 1649ETEXI 1650 1651 { 1652 .name = "qemu-io", 1653 .args_type = "device:B,command:s", 1654 .params = "[device] \"[command]\"", 1655 .help = "run a qemu-io command on a block device", 1656 .mhandler.cmd = hmp_qemu_io, 1657 }, 1658 1659STEXI 1660@item qemu-io @var{device} @var{command} 1661@findex qemu-io 1662 1663Executes a qemu-io command on the given block device. 1664 1665ETEXI 1666 1667 { 1668 .name = "cpu-add", 1669 .args_type = "id:i", 1670 .params = "id", 1671 .help = "add cpu", 1672 .mhandler.cmd = hmp_cpu_add, 1673 }, 1674 1675STEXI 1676@item cpu-add @var{id} 1677Add CPU with id @var{id} 1678ETEXI 1679 1680 { 1681 .name = "info", 1682 .args_type = "item:s?", 1683 .params = "[subcommand]", 1684 .help = "show various information about the system state", 1685 .mhandler.cmd = do_info_help, 1686 .sub_table = info_cmds, 1687 }, 1688 1689STEXI 1690@item info @var{subcommand} 1691@findex info 1692Show various information about the system state. 1693 1694@table @option 1695@item info version 1696show the version of QEMU 1697@item info network 1698show the various VLANs and the associated devices 1699@item info chardev 1700show the character devices 1701@item info block 1702show the block devices 1703@item info blockstats 1704show block device statistics 1705@item info registers 1706show the cpu registers 1707@item info cpus 1708show infos for each CPU 1709@item info history 1710show the command line history 1711@item info irq 1712show the interrupts statistics (if available) 1713@item info pic 1714show i8259 (PIC) state 1715@item info pci 1716show emulated PCI device info 1717@item info tlb 1718show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only) 1719@item info mem 1720show the active virtual memory mappings (i386 only) 1721@item info jit 1722show dynamic compiler info 1723@item info numa 1724show NUMA information 1725@item info kvm 1726show KVM information 1727@item info usb 1728show USB devices plugged on the virtual USB hub 1729@item info usbhost 1730show all USB host devices 1731@item info profile 1732show profiling information 1733@item info capture 1734show information about active capturing 1735@item info snapshots 1736show list of VM snapshots 1737@item info status 1738show the current VM status (running|paused) 1739@item info pcmcia 1740show guest PCMCIA status 1741@item info mice 1742show which guest mouse is receiving events 1743@item info vnc 1744show the vnc server status 1745@item info name 1746show the current VM name 1747@item info uuid 1748show the current VM UUID 1749@item info cpustats 1750show CPU statistics 1751@item info usernet 1752show user network stack connection states 1753@item info migrate 1754show migration status 1755@item info migrate_capabilities 1756show current migration capabilities 1757@item info migrate_cache_size 1758show current migration XBZRLE cache size 1759@item info balloon 1760show balloon information 1761@item info qtree 1762show device tree 1763@item info qdm 1764show qdev device model list 1765@item info roms 1766show roms 1767@item info tpm 1768show the TPM device 1769@end table 1770ETEXI 1771 1772STEXI 1773@item info trace-events 1774show available trace events and their state 1775ETEXI 1776 1777STEXI 1778@end table 1779ETEXI 1780