1HXCOMM Use DEFHEADING() to define headings in both help text and texi 2HXCOMM Text between STEXI and ETEXI are copied to texi version and 3HXCOMM discarded from C version 4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct 5HXCOMM monitor commands 6HXCOMM HXCOMM can be used for comments, discarded from both texi and C 7 8STEXI 9@table @option 10ETEXI 11 12 { 13 .name = "help|?", 14 .args_type = "name:S?", 15 .params = "[cmd]", 16 .help = "show the help", 17 .cmd = do_help_cmd, 18 }, 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 .cmd = hmp_commit, 32 }, 33 34STEXI 35@item commit 36@findex commit 37Commit changes to the disk images (if -snapshot is used) or backing files. 38If the backing file is smaller than the snapshot, then the backing file will be 39resized to be the same size as the snapshot. If the snapshot is smaller than 40the backing file, the backing file will not be truncated. If you want the 41backing file to match the size of the smaller snapshot, you can safely truncate 42it yourself once the commit operation successfully completes. 43ETEXI 44 45 { 46 .name = "q|quit", 47 .args_type = "", 48 .params = "", 49 .help = "quit the emulator", 50 .cmd = hmp_quit, 51 }, 52 53STEXI 54@item q or quit 55@findex quit 56Quit the emulator. 57ETEXI 58 59 { 60 .name = "block_resize", 61 .args_type = "device:B,size:o", 62 .params = "device size", 63 .help = "resize a block image", 64 .cmd = hmp_block_resize, 65 }, 66 67STEXI 68@item block_resize 69@findex block_resize 70Resize a block image while a guest is running. Usually requires guest 71action to see the updated size. Resize to a lower size is supported, 72but should be used with extreme caution. Note that this command only 73resizes image files, it can not resize block devices like LVM volumes. 74ETEXI 75 76 { 77 .name = "block_stream", 78 .args_type = "device:B,speed:o?,base:s?", 79 .params = "device [speed [base]]", 80 .help = "copy data from a backing file into a block device", 81 .cmd = hmp_block_stream, 82 }, 83 84STEXI 85@item block_stream 86@findex block_stream 87Copy data from a backing file into a block device. 88ETEXI 89 90 { 91 .name = "block_job_set_speed", 92 .args_type = "device:B,speed:o", 93 .params = "device speed", 94 .help = "set maximum speed for a background block operation", 95 .cmd = hmp_block_job_set_speed, 96 }, 97 98STEXI 99@item block_job_set_speed 100@findex block_job_set_speed 101Set maximum speed for a background block operation. 102ETEXI 103 104 { 105 .name = "block_job_cancel", 106 .args_type = "force:-f,device:B", 107 .params = "[-f] device", 108 .help = "stop an active background block operation (use -f" 109 "\n\t\t\t if the operation is currently paused)", 110 .cmd = hmp_block_job_cancel, 111 }, 112 113STEXI 114@item block_job_cancel 115@findex block_job_cancel 116Stop an active background block operation (streaming, mirroring). 117ETEXI 118 119 { 120 .name = "block_job_complete", 121 .args_type = "device:B", 122 .params = "device", 123 .help = "stop an active background block operation", 124 .cmd = hmp_block_job_complete, 125 }, 126 127STEXI 128@item block_job_complete 129@findex block_job_complete 130Manually trigger completion of an active background block operation. 131For mirroring, this will switch the device to the destination path. 132ETEXI 133 134 { 135 .name = "block_job_pause", 136 .args_type = "device:B", 137 .params = "device", 138 .help = "pause an active background block operation", 139 .cmd = hmp_block_job_pause, 140 }, 141 142STEXI 143@item block_job_pause 144@findex block_job_pause 145Pause an active block streaming operation. 146ETEXI 147 148 { 149 .name = "block_job_resume", 150 .args_type = "device:B", 151 .params = "device", 152 .help = "resume a paused background block operation", 153 .cmd = hmp_block_job_resume, 154 }, 155 156STEXI 157@item block_job_resume 158@findex block_job_resume 159Resume a paused block streaming operation. 160ETEXI 161 162 { 163 .name = "eject", 164 .args_type = "force:-f,device:B", 165 .params = "[-f] device", 166 .help = "eject a removable medium (use -f to force it)", 167 .cmd = hmp_eject, 168 }, 169 170STEXI 171@item eject [-f] @var{device} 172@findex eject 173Eject a removable medium (use -f to force it). 174ETEXI 175 176 { 177 .name = "drive_del", 178 .args_type = "id:B", 179 .params = "device", 180 .help = "remove host block device", 181 .cmd = hmp_drive_del, 182 }, 183 184STEXI 185@item drive_del @var{device} 186@findex drive_del 187Remove host block device. The result is that guest generated IO is no longer 188submitted against the host device underlying the disk. Once a drive has 189been deleted, the QEMU Block layer returns -EIO which results in IO 190errors in the guest for applications that are reading/writing to the device. 191These errors are always reported to the guest, regardless of the drive's error 192actions (drive options rerror, werror). 193ETEXI 194 195 { 196 .name = "change", 197 .args_type = "device:B,target:F,arg:s?,read-only-mode:s?", 198 .params = "device filename [format [read-only-mode]]", 199 .help = "change a removable medium, optional format", 200 .cmd = hmp_change, 201 }, 202 203STEXI 204@item change @var{device} @var{setting} 205@findex change 206Change the configuration of a device. 207 208@table @option 209@item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]] 210Change the medium for a removable disk device to point to @var{filename}. eg 211 212@example 213(qemu) change ide1-cd0 /path/to/some.iso 214@end example 215 216@var{format} is optional. 217 218@var{read-only-mode} may be used to change the read-only status of the device. 219It accepts the following values: 220 221@table @var 222@item retain 223Retains the current status; this is the default. 224 225@item read-only 226Makes the device read-only. 227 228@item read-write 229Makes the device writable. 230@end table 231 232@item change vnc @var{display},@var{options} 233Change the configuration of the VNC server. The valid syntax for @var{display} 234and @var{options} are described at @ref{sec_invocation}. eg 235 236@example 237(qemu) change vnc localhost:1 238@end example 239 240@item change vnc password [@var{password}] 241 242Change the password associated with the VNC server. If the new password is not 243supplied, the monitor will prompt for it to be entered. VNC passwords are only 244significant up to 8 letters. eg 245 246@example 247(qemu) change vnc password 248Password: ******** 249@end example 250 251@end table 252ETEXI 253 254 { 255 .name = "screendump", 256 .args_type = "filename:F,device:s?,head:i?", 257 .params = "filename [device [head]]", 258 .help = "save screen from head 'head' of display device 'device' " 259 "into PPM image 'filename'", 260 .cmd = hmp_screendump, 261 }, 262 263STEXI 264@item screendump @var{filename} 265@findex screendump 266Save screen into PPM image @var{filename}. 267ETEXI 268 269 { 270 .name = "logfile", 271 .args_type = "filename:F", 272 .params = "filename", 273 .help = "output logs to 'filename'", 274 .cmd = hmp_logfile, 275 }, 276 277STEXI 278@item logfile @var{filename} 279@findex logfile 280Output logs to @var{filename}. 281ETEXI 282 283 { 284 .name = "trace-event", 285 .args_type = "name:s,option:b,vcpu:i?", 286 .params = "name on|off [vcpu]", 287 .help = "changes status of a specific trace event " 288 "(vcpu: vCPU to set, default is all)", 289 .cmd = hmp_trace_event, 290 .command_completion = trace_event_completion, 291 }, 292 293STEXI 294@item trace-event 295@findex trace-event 296changes status of a trace event 297ETEXI 298 299#if defined(CONFIG_TRACE_SIMPLE) 300 { 301 .name = "trace-file", 302 .args_type = "op:s?,arg:F?", 303 .params = "on|off|flush|set [arg]", 304 .help = "open, close, or flush trace file, or set a new file name", 305 .cmd = hmp_trace_file, 306 }, 307 308STEXI 309@item trace-file on|off|flush 310@findex trace-file 311Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed. 312ETEXI 313#endif 314 315 { 316 .name = "log", 317 .args_type = "items:s", 318 .params = "item1[,...]", 319 .help = "activate logging of the specified items", 320 .cmd = hmp_log, 321 }, 322 323STEXI 324@item log @var{item1}[,...] 325@findex log 326Activate logging of the specified items. 327ETEXI 328 329 { 330 .name = "savevm", 331 .args_type = "name:s?", 332 .params = "[tag|id]", 333 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created", 334 .cmd = hmp_savevm, 335 }, 336 337STEXI 338@item savevm [@var{tag}|@var{id}] 339@findex savevm 340Create a snapshot of the whole virtual machine. If @var{tag} is 341provided, it is used as human readable identifier. If there is already 342a snapshot with the same tag or ID, it is replaced. More info at 343@ref{vm_snapshots}. 344ETEXI 345 346 { 347 .name = "loadvm", 348 .args_type = "name:s", 349 .params = "tag|id", 350 .help = "restore a VM snapshot from its tag or id", 351 .cmd = hmp_loadvm, 352 .command_completion = loadvm_completion, 353 }, 354 355STEXI 356@item loadvm @var{tag}|@var{id} 357@findex loadvm 358Set the whole virtual machine to the snapshot identified by the tag 359@var{tag} or the unique snapshot ID @var{id}. 360ETEXI 361 362 { 363 .name = "delvm", 364 .args_type = "name:s", 365 .params = "tag|id", 366 .help = "delete a VM snapshot from its tag or id", 367 .cmd = hmp_delvm, 368 .command_completion = delvm_completion, 369 }, 370 371STEXI 372@item delvm @var{tag}|@var{id} 373@findex delvm 374Delete the snapshot identified by @var{tag} or @var{id}. 375ETEXI 376 377 { 378 .name = "singlestep", 379 .args_type = "option:s?", 380 .params = "[on|off]", 381 .help = "run emulation in singlestep mode or switch to normal mode", 382 .cmd = hmp_singlestep, 383 }, 384 385STEXI 386@item singlestep [off] 387@findex singlestep 388Run the emulation in single step mode. 389If called with option off, the emulation returns to normal mode. 390ETEXI 391 392 { 393 .name = "stop", 394 .args_type = "", 395 .params = "", 396 .help = "stop emulation", 397 .cmd = hmp_stop, 398 }, 399 400STEXI 401@item stop 402@findex stop 403Stop emulation. 404ETEXI 405 406 { 407 .name = "c|cont", 408 .args_type = "", 409 .params = "", 410 .help = "resume emulation", 411 .cmd = hmp_cont, 412 }, 413 414STEXI 415@item c or cont 416@findex cont 417Resume emulation. 418ETEXI 419 420 { 421 .name = "system_wakeup", 422 .args_type = "", 423 .params = "", 424 .help = "wakeup guest from suspend", 425 .cmd = hmp_system_wakeup, 426 }, 427 428STEXI 429@item system_wakeup 430@findex system_wakeup 431Wakeup guest from suspend. 432ETEXI 433 434 { 435 .name = "gdbserver", 436 .args_type = "device:s?", 437 .params = "[device]", 438 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'", 439 .cmd = hmp_gdbserver, 440 }, 441 442STEXI 443@item gdbserver [@var{port}] 444@findex gdbserver 445Start gdbserver session (default @var{port}=1234) 446ETEXI 447 448 { 449 .name = "x", 450 .args_type = "fmt:/,addr:l", 451 .params = "/fmt addr", 452 .help = "virtual memory dump starting at 'addr'", 453 .cmd = hmp_memory_dump, 454 }, 455 456STEXI 457@item x/fmt @var{addr} 458@findex x 459Virtual memory dump starting at @var{addr}. 460ETEXI 461 462 { 463 .name = "xp", 464 .args_type = "fmt:/,addr:l", 465 .params = "/fmt addr", 466 .help = "physical memory dump starting at 'addr'", 467 .cmd = hmp_physical_memory_dump, 468 }, 469 470STEXI 471@item xp /@var{fmt} @var{addr} 472@findex xp 473Physical memory dump starting at @var{addr}. 474 475@var{fmt} is a format which tells the command how to format the 476data. Its syntax is: @option{/@{count@}@{format@}@{size@}} 477 478@table @var 479@item count 480is the number of items to be dumped. 481 482@item format 483can be x (hex), d (signed decimal), u (unsigned decimal), o (octal), 484c (char) or i (asm instruction). 485 486@item size 487can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86, 488@code{h} or @code{w} can be specified with the @code{i} format to 489respectively select 16 or 32 bit code instruction size. 490 491@end table 492 493Examples: 494@itemize 495@item 496Dump 10 instructions at the current instruction pointer: 497@example 498(qemu) x/10i $eip 4990x90107063: ret 5000x90107064: sti 5010x90107065: lea 0x0(%esi,1),%esi 5020x90107069: lea 0x0(%edi,1),%edi 5030x90107070: ret 5040x90107071: jmp 0x90107080 5050x90107073: nop 5060x90107074: nop 5070x90107075: nop 5080x90107076: nop 509@end example 510 511@item 512Dump 80 16 bit values at the start of the video memory. 513@smallexample 514(qemu) xp/80hx 0xb8000 5150x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42 5160x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41 5170x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72 5180x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73 5190x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20 5200x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720 5210x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5220x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5230x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5240x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 525@end smallexample 526@end itemize 527ETEXI 528 529 { 530 .name = "gpa2hva", 531 .args_type = "addr:l", 532 .params = "addr", 533 .help = "print the host virtual address corresponding to a guest physical address", 534 .cmd = hmp_gpa2hva, 535 }, 536 537STEXI 538@item gpa2hva @var{addr} 539@findex gpa2hva 540Print the host virtual address at which the guest's physical address @var{addr} 541is mapped. 542ETEXI 543 544#ifdef CONFIG_LINUX 545 { 546 .name = "gpa2hpa", 547 .args_type = "addr:l", 548 .params = "addr", 549 .help = "print the host physical address corresponding to a guest physical address", 550 .cmd = hmp_gpa2hpa, 551 }, 552#endif 553 554STEXI 555@item gpa2hpa @var{addr} 556@findex gpa2hpa 557Print the host physical address at which the guest's physical address @var{addr} 558is mapped. 559ETEXI 560 561 { 562 .name = "p|print", 563 .args_type = "fmt:/,val:l", 564 .params = "/fmt expr", 565 .help = "print expression value (use $reg for CPU register access)", 566 .cmd = do_print, 567 }, 568 569STEXI 570@item p or print/@var{fmt} @var{expr} 571@findex print 572Print expression value. Only the @var{format} part of @var{fmt} is 573used. 574ETEXI 575 576 { 577 .name = "i", 578 .args_type = "fmt:/,addr:i,index:i.", 579 .params = "/fmt addr", 580 .help = "I/O port read", 581 .cmd = hmp_ioport_read, 582 }, 583 584STEXI 585@item i/@var{fmt} @var{addr} [.@var{index}] 586@findex i 587Read I/O port. 588ETEXI 589 590 { 591 .name = "o", 592 .args_type = "fmt:/,addr:i,val:i", 593 .params = "/fmt addr value", 594 .help = "I/O port write", 595 .cmd = hmp_ioport_write, 596 }, 597 598STEXI 599@item o/@var{fmt} @var{addr} @var{val} 600@findex o 601Write to I/O port. 602ETEXI 603 604 { 605 .name = "sendkey", 606 .args_type = "keys:s,hold-time:i?", 607 .params = "keys [hold_ms]", 608 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)", 609 .cmd = hmp_sendkey, 610 .command_completion = sendkey_completion, 611 }, 612 613STEXI 614@item sendkey @var{keys} 615@findex sendkey 616Send @var{keys} to the guest. @var{keys} could be the name of the 617key or the raw value in hexadecimal format. Use @code{-} to press 618several keys simultaneously. Example: 619@example 620sendkey ctrl-alt-f1 621@end example 622 623This command is useful to send keys that your graphical user interface 624intercepts at low level, such as @code{ctrl-alt-f1} in X Window. 625ETEXI 626 627 { 628 .name = "system_reset", 629 .args_type = "", 630 .params = "", 631 .help = "reset the system", 632 .cmd = hmp_system_reset, 633 }, 634 635STEXI 636@item system_reset 637@findex system_reset 638Reset the system. 639ETEXI 640 641 { 642 .name = "system_powerdown", 643 .args_type = "", 644 .params = "", 645 .help = "send system power down event", 646 .cmd = hmp_system_powerdown, 647 }, 648 649STEXI 650@item system_powerdown 651@findex system_powerdown 652Power down the system (if supported). 653ETEXI 654 655 { 656 .name = "sum", 657 .args_type = "start:i,size:i", 658 .params = "addr size", 659 .help = "compute the checksum of a memory region", 660 .cmd = hmp_sum, 661 }, 662 663STEXI 664@item sum @var{addr} @var{size} 665@findex sum 666Compute the checksum of a memory region. 667ETEXI 668 669 { 670 .name = "device_add", 671 .args_type = "device:O", 672 .params = "driver[,prop=value][,...]", 673 .help = "add device, like -device on the command line", 674 .cmd = hmp_device_add, 675 .command_completion = device_add_completion, 676 }, 677 678STEXI 679@item device_add @var{config} 680@findex device_add 681Add device. 682ETEXI 683 684 { 685 .name = "device_del", 686 .args_type = "id:s", 687 .params = "device", 688 .help = "remove device", 689 .cmd = hmp_device_del, 690 .command_completion = device_del_completion, 691 }, 692 693STEXI 694@item device_del @var{id} 695@findex device_del 696Remove device @var{id}. @var{id} may be a short ID 697or a QOM object path. 698ETEXI 699 700 { 701 .name = "cpu", 702 .args_type = "index:i", 703 .params = "index", 704 .help = "set the default CPU", 705 .cmd = hmp_cpu, 706 }, 707 708STEXI 709@item cpu @var{index} 710@findex cpu 711Set the default CPU. 712ETEXI 713 714 { 715 .name = "mouse_move", 716 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 717 .params = "dx dy [dz]", 718 .help = "send mouse move events", 719 .cmd = hmp_mouse_move, 720 }, 721 722STEXI 723@item mouse_move @var{dx} @var{dy} [@var{dz}] 724@findex mouse_move 725Move the active mouse to the specified coordinates @var{dx} @var{dy} 726with optional scroll axis @var{dz}. 727ETEXI 728 729 { 730 .name = "mouse_button", 731 .args_type = "button_state:i", 732 .params = "state", 733 .help = "change mouse button state (1=L, 2=M, 4=R)", 734 .cmd = hmp_mouse_button, 735 }, 736 737STEXI 738@item mouse_button @var{val} 739@findex mouse_button 740Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 741ETEXI 742 743 { 744 .name = "mouse_set", 745 .args_type = "index:i", 746 .params = "index", 747 .help = "set which mouse device receives events", 748 .cmd = hmp_mouse_set, 749 }, 750 751STEXI 752@item mouse_set @var{index} 753@findex mouse_set 754Set which mouse device receives events at given @var{index}, index 755can be obtained with 756@example 757info mice 758@end example 759ETEXI 760 761 { 762 .name = "wavcapture", 763 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 764 .params = "path [frequency [bits [channels]]]", 765 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 766 .cmd = hmp_wavcapture, 767 }, 768STEXI 769@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 770@findex wavcapture 771Capture audio into @var{filename}. Using sample rate @var{frequency} 772bits per sample @var{bits} and number of channels @var{channels}. 773 774Defaults: 775@itemize @minus 776@item Sample rate = 44100 Hz - CD quality 777@item Bits = 16 778@item Number of channels = 2 - Stereo 779@end itemize 780ETEXI 781 782 { 783 .name = "stopcapture", 784 .args_type = "n:i", 785 .params = "capture index", 786 .help = "stop capture", 787 .cmd = hmp_stopcapture, 788 }, 789STEXI 790@item stopcapture @var{index} 791@findex stopcapture 792Stop capture with a given @var{index}, index can be obtained with 793@example 794info capture 795@end example 796ETEXI 797 798 { 799 .name = "memsave", 800 .args_type = "val:l,size:i,filename:s", 801 .params = "addr size file", 802 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 803 .cmd = hmp_memsave, 804 }, 805 806STEXI 807@item memsave @var{addr} @var{size} @var{file} 808@findex memsave 809save to disk virtual memory dump starting at @var{addr} of size @var{size}. 810ETEXI 811 812 { 813 .name = "pmemsave", 814 .args_type = "val:l,size:i,filename:s", 815 .params = "addr size file", 816 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 817 .cmd = hmp_pmemsave, 818 }, 819 820STEXI 821@item pmemsave @var{addr} @var{size} @var{file} 822@findex pmemsave 823save to disk physical memory dump starting at @var{addr} of size @var{size}. 824ETEXI 825 826 { 827 .name = "boot_set", 828 .args_type = "bootdevice:s", 829 .params = "bootdevice", 830 .help = "define new values for the boot device list", 831 .cmd = hmp_boot_set, 832 }, 833 834STEXI 835@item boot_set @var{bootdevicelist} 836@findex boot_set 837Define new values for the boot device list. Those values will override 838the values specified on the command line through the @code{-boot} option. 839 840The values that can be specified here depend on the machine type, but are 841the same that can be specified in the @code{-boot} command line option. 842ETEXI 843 844 { 845 .name = "nmi", 846 .args_type = "", 847 .params = "", 848 .help = "inject an NMI", 849 .cmd = hmp_nmi, 850 }, 851STEXI 852@item nmi @var{cpu} 853@findex nmi 854Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). 855 856ETEXI 857 858 { 859 .name = "ringbuf_write", 860 .args_type = "device:s,data:s", 861 .params = "device data", 862 .help = "Write to a ring buffer character device", 863 .cmd = hmp_ringbuf_write, 864 .command_completion = ringbuf_write_completion, 865 }, 866 867STEXI 868@item ringbuf_write @var{device} @var{data} 869@findex ringbuf_write 870Write @var{data} to ring buffer character device @var{device}. 871@var{data} must be a UTF-8 string. 872 873ETEXI 874 875 { 876 .name = "ringbuf_read", 877 .args_type = "device:s,size:i", 878 .params = "device size", 879 .help = "Read from a ring buffer character device", 880 .cmd = hmp_ringbuf_read, 881 .command_completion = ringbuf_write_completion, 882 }, 883 884STEXI 885@item ringbuf_read @var{device} 886@findex ringbuf_read 887Read and print up to @var{size} bytes from ring buffer character 888device @var{device}. 889Certain non-printable characters are printed \uXXXX, where XXXX is the 890character code in hexadecimal. Character \ is printed \\. 891Bug: can screw up when the buffer contains invalid UTF-8 sequences, 892NUL characters, after the ring buffer lost data, and when reading 893stops because the size limit is reached. 894 895ETEXI 896 897 { 898 .name = "migrate", 899 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 900 .params = "[-d] [-b] [-i] uri", 901 .help = "migrate to URI (using -d to not wait for completion)" 902 "\n\t\t\t -b for migration without shared storage with" 903 " full copy of disk\n\t\t\t -i for migration without " 904 "shared storage with incremental copy of disk " 905 "(base image shared between src and destination)", 906 .cmd = hmp_migrate, 907 }, 908 909 910STEXI 911@item migrate [-d] [-b] [-i] @var{uri} 912@findex migrate 913Migrate to @var{uri} (using -d to not wait for completion). 914 -b for migration with full copy of disk 915 -i for migration with incremental copy of disk (base image is shared) 916ETEXI 917 918 { 919 .name = "migrate_cancel", 920 .args_type = "", 921 .params = "", 922 .help = "cancel the current VM migration", 923 .cmd = hmp_migrate_cancel, 924 }, 925 926STEXI 927@item migrate_cancel 928@findex migrate_cancel 929Cancel the current VM migration. 930ETEXI 931 932 { 933 .name = "migrate_continue", 934 .args_type = "state:s", 935 .params = "state", 936 .help = "Continue migration from the given paused state", 937 .cmd = hmp_migrate_continue, 938 }, 939STEXI 940@item migrate_continue @var{state} 941@findex migrate_continue 942Continue migration from the paused state @var{state} 943ETEXI 944 945 { 946 .name = "migrate_incoming", 947 .args_type = "uri:s", 948 .params = "uri", 949 .help = "Continue an incoming migration from an -incoming defer", 950 .cmd = hmp_migrate_incoming, 951 }, 952 953STEXI 954@item migrate_incoming @var{uri} 955@findex migrate_incoming 956Continue an incoming migration using the @var{uri} (that has the same syntax 957as the -incoming option). 958 959ETEXI 960 961 { 962 .name = "migrate_set_cache_size", 963 .args_type = "value:o", 964 .params = "value", 965 .help = "set cache size (in bytes) for XBZRLE migrations," 966 "the cache size will be rounded down to the nearest " 967 "power of 2.\n" 968 "The cache size affects the number of cache misses." 969 "In case of a high cache miss ratio you need to increase" 970 " the cache size", 971 .cmd = hmp_migrate_set_cache_size, 972 }, 973 974STEXI 975@item migrate_set_cache_size @var{value} 976@findex migrate_set_cache_size 977Set cache size to @var{value} (in bytes) for xbzrle migrations. 978ETEXI 979 980 { 981 .name = "migrate_set_speed", 982 .args_type = "value:o", 983 .params = "value", 984 .help = "set maximum speed (in bytes) for migrations. " 985 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 986 .cmd = hmp_migrate_set_speed, 987 }, 988 989STEXI 990@item migrate_set_speed @var{value} 991@findex migrate_set_speed 992Set maximum speed to @var{value} (in bytes) for migrations. 993ETEXI 994 995 { 996 .name = "migrate_set_downtime", 997 .args_type = "value:T", 998 .params = "value", 999 .help = "set maximum tolerated downtime (in seconds) for migrations", 1000 .cmd = hmp_migrate_set_downtime, 1001 }, 1002 1003STEXI 1004@item migrate_set_downtime @var{second} 1005@findex migrate_set_downtime 1006Set maximum tolerated downtime (in seconds) for migration. 1007ETEXI 1008 1009 { 1010 .name = "migrate_set_capability", 1011 .args_type = "capability:s,state:b", 1012 .params = "capability state", 1013 .help = "Enable/Disable the usage of a capability for migration", 1014 .cmd = hmp_migrate_set_capability, 1015 .command_completion = migrate_set_capability_completion, 1016 }, 1017 1018STEXI 1019@item migrate_set_capability @var{capability} @var{state} 1020@findex migrate_set_capability 1021Enable/Disable the usage of a capability @var{capability} for migration. 1022ETEXI 1023 1024 { 1025 .name = "migrate_set_parameter", 1026 .args_type = "parameter:s,value:s", 1027 .params = "parameter value", 1028 .help = "Set the parameter for migration", 1029 .cmd = hmp_migrate_set_parameter, 1030 .command_completion = migrate_set_parameter_completion, 1031 }, 1032 1033STEXI 1034@item migrate_set_parameter @var{parameter} @var{value} 1035@findex migrate_set_parameter 1036Set the parameter @var{parameter} for migration. 1037ETEXI 1038 1039 { 1040 .name = "migrate_start_postcopy", 1041 .args_type = "", 1042 .params = "", 1043 .help = "Followup to a migration command to switch the migration" 1044 " to postcopy mode. The postcopy-ram capability must " 1045 "be set on both source and destination before the " 1046 "original migration command .", 1047 .cmd = hmp_migrate_start_postcopy, 1048 }, 1049 1050STEXI 1051@item migrate_start_postcopy 1052@findex migrate_start_postcopy 1053Switch in-progress migration to postcopy mode. Ignored after the end of 1054migration (or once already in postcopy). 1055ETEXI 1056 1057 { 1058 .name = "x_colo_lost_heartbeat", 1059 .args_type = "", 1060 .params = "", 1061 .help = "Tell COLO that heartbeat is lost,\n\t\t\t" 1062 "a failover or takeover is needed.", 1063 .cmd = hmp_x_colo_lost_heartbeat, 1064 }, 1065 1066STEXI 1067@item x_colo_lost_heartbeat 1068@findex x_colo_lost_heartbeat 1069Tell COLO that heartbeat is lost, a failover or takeover is needed. 1070ETEXI 1071 1072 { 1073 .name = "client_migrate_info", 1074 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1075 .params = "protocol hostname port tls-port cert-subject", 1076 .help = "set migration information for remote display", 1077 .cmd = hmp_client_migrate_info, 1078 }, 1079 1080STEXI 1081@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1082@findex client_migrate_info 1083Set migration information for remote display. This makes the server 1084ask the client to automatically reconnect using the new parameters 1085once migration finished successfully. Only implemented for SPICE. 1086ETEXI 1087 1088 { 1089 .name = "dump-guest-memory", 1090 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", 1091 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]", 1092 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1093 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1094 "-d: return immediately (do not wait for completion).\n\t\t\t" 1095 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1096 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1097 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1098 "begin: the starting physical address.\n\t\t\t" 1099 "length: the memory size, in bytes.", 1100 .cmd = hmp_dump_guest_memory, 1101 }, 1102 1103 1104STEXI 1105@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1106@item dump-guest-memory [-z|-l|-s] @var{filename} 1107@findex dump-guest-memory 1108Dump guest memory to @var{protocol}. The file can be processed with crash or 1109gdb. Without -z|-l|-s, the dump format is ELF. 1110 -p: do paging to get guest's memory mapping. 1111 -z: dump in kdump-compressed format, with zlib compression. 1112 -l: dump in kdump-compressed format, with lzo compression. 1113 -s: dump in kdump-compressed format, with snappy compression. 1114 filename: dump file name. 1115 begin: the starting physical address. It's optional, and should be 1116 specified together with length. 1117 length: the memory size, in bytes. It's optional, and should be specified 1118 together with begin. 1119ETEXI 1120 1121#if defined(TARGET_S390X) 1122 { 1123 .name = "dump-skeys", 1124 .args_type = "filename:F", 1125 .params = "", 1126 .help = "Save guest storage keys into file 'filename'.\n", 1127 .cmd = hmp_dump_skeys, 1128 }, 1129#endif 1130 1131STEXI 1132@item dump-skeys @var{filename} 1133@findex dump-skeys 1134Save guest storage keys to a file. 1135ETEXI 1136 1137#if defined(TARGET_S390X) 1138 { 1139 .name = "migration_mode", 1140 .args_type = "mode:i", 1141 .params = "mode", 1142 .help = "Enables or disables migration mode\n", 1143 .cmd = hmp_migrationmode, 1144 }, 1145#endif 1146 1147STEXI 1148@item migration_mode @var{mode} 1149@findex migration_mode 1150Enables or disables migration mode. 1151ETEXI 1152 1153 { 1154 .name = "snapshot_blkdev", 1155 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1156 .params = "[-n] device [new-image-file] [format]", 1157 .help = "initiates a live snapshot\n\t\t\t" 1158 "of device. If a new image file is specified, the\n\t\t\t" 1159 "new image file will become the new root image.\n\t\t\t" 1160 "If format is specified, the snapshot file will\n\t\t\t" 1161 "be created in that format.\n\t\t\t" 1162 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1163 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1164 "recreating it from scratch.", 1165 .cmd = hmp_snapshot_blkdev, 1166 }, 1167 1168STEXI 1169@item snapshot_blkdev 1170@findex snapshot_blkdev 1171Snapshot device, using snapshot file as target if provided 1172ETEXI 1173 1174 { 1175 .name = "snapshot_blkdev_internal", 1176 .args_type = "device:B,name:s", 1177 .params = "device name", 1178 .help = "take an internal snapshot of device.\n\t\t\t" 1179 "The format of the image used by device must\n\t\t\t" 1180 "support it, such as qcow2.\n\t\t\t", 1181 .cmd = hmp_snapshot_blkdev_internal, 1182 }, 1183 1184STEXI 1185@item snapshot_blkdev_internal 1186@findex snapshot_blkdev_internal 1187Take an internal snapshot on device if it support 1188ETEXI 1189 1190 { 1191 .name = "snapshot_delete_blkdev_internal", 1192 .args_type = "device:B,name:s,id:s?", 1193 .params = "device name [id]", 1194 .help = "delete an internal snapshot of device.\n\t\t\t" 1195 "If id is specified, qemu will try delete\n\t\t\t" 1196 "the snapshot matching both id and name.\n\t\t\t" 1197 "The format of the image used by device must\n\t\t\t" 1198 "support it, such as qcow2.\n\t\t\t", 1199 .cmd = hmp_snapshot_delete_blkdev_internal, 1200 }, 1201 1202STEXI 1203@item snapshot_delete_blkdev_internal 1204@findex snapshot_delete_blkdev_internal 1205Delete an internal snapshot on device if it support 1206ETEXI 1207 1208 { 1209 .name = "drive_mirror", 1210 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1211 .params = "[-n] [-f] device target [format]", 1212 .help = "initiates live storage\n\t\t\t" 1213 "migration for a device. The device's contents are\n\t\t\t" 1214 "copied to the new image file, including data that\n\t\t\t" 1215 "is written after the command is started.\n\t\t\t" 1216 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1217 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1218 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1219 "so that the result does not need a backing file.\n\t\t\t", 1220 .cmd = hmp_drive_mirror, 1221 }, 1222STEXI 1223@item drive_mirror 1224@findex drive_mirror 1225Start mirroring a block device's writes to a new destination, 1226using the specified target. 1227ETEXI 1228 1229 { 1230 .name = "drive_backup", 1231 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?", 1232 .params = "[-n] [-f] [-c] device target [format]", 1233 .help = "initiates a point-in-time\n\t\t\t" 1234 "copy for a device. The device's contents are\n\t\t\t" 1235 "copied to the new image file, excluding data that\n\t\t\t" 1236 "is written after the command is started.\n\t\t\t" 1237 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1238 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1239 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1240 "so that the result does not need a backing file.\n\t\t\t" 1241 "The -c flag requests QEMU to compress backup data\n\t\t\t" 1242 "(if the target format supports it).\n\t\t\t", 1243 .cmd = hmp_drive_backup, 1244 }, 1245STEXI 1246@item drive_backup 1247@findex drive_backup 1248Start a point-in-time copy of a block device to a specificed target. 1249ETEXI 1250 1251 { 1252 .name = "drive_add", 1253 .args_type = "node:-n,pci_addr:s,opts:s", 1254 .params = "[-n] [[<domain>:]<bus>:]<slot>\n" 1255 "[file=file][,if=type][,bus=n]\n" 1256 "[,unit=m][,media=d][,index=i]\n" 1257 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1258 "[,snapshot=on|off][,cache=on|off]\n" 1259 "[,readonly=on|off][,copy-on-read=on|off]", 1260 .help = "add drive to PCI storage controller", 1261 .cmd = hmp_drive_add, 1262 }, 1263 1264STEXI 1265@item drive_add 1266@findex drive_add 1267Add drive to PCI storage controller. 1268ETEXI 1269 1270 { 1271 .name = "pcie_aer_inject_error", 1272 .args_type = "advisory_non_fatal:-a,correctable:-c," 1273 "id:s,error_status:s," 1274 "header0:i?,header1:i?,header2:i?,header3:i?," 1275 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1276 .params = "[-a] [-c] id " 1277 "<error_status> [<tlp header> [<tlp header prefix>]]", 1278 .help = "inject pcie aer error\n\t\t\t" 1279 " -a for advisory non fatal error\n\t\t\t" 1280 " -c for correctable error\n\t\t\t" 1281 "<id> = qdev device id\n\t\t\t" 1282 "<error_status> = error string or 32bit\n\t\t\t" 1283 "<tlb header> = 32bit x 4\n\t\t\t" 1284 "<tlb header prefix> = 32bit x 4", 1285 .cmd = hmp_pcie_aer_inject_error, 1286 }, 1287 1288STEXI 1289@item pcie_aer_inject_error 1290@findex pcie_aer_inject_error 1291Inject PCIe AER error 1292ETEXI 1293 1294 { 1295 .name = "netdev_add", 1296 .args_type = "netdev:O", 1297 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1298 .help = "add host network device", 1299 .cmd = hmp_netdev_add, 1300 .command_completion = netdev_add_completion, 1301 }, 1302 1303STEXI 1304@item netdev_add 1305@findex netdev_add 1306Add host network device. 1307ETEXI 1308 1309 { 1310 .name = "netdev_del", 1311 .args_type = "id:s", 1312 .params = "id", 1313 .help = "remove host network device", 1314 .cmd = hmp_netdev_del, 1315 .command_completion = netdev_del_completion, 1316 }, 1317 1318STEXI 1319@item netdev_del 1320@findex netdev_del 1321Remove host network device. 1322ETEXI 1323 1324 { 1325 .name = "object_add", 1326 .args_type = "object:O", 1327 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1328 .help = "create QOM object", 1329 .cmd = hmp_object_add, 1330 .command_completion = object_add_completion, 1331 }, 1332 1333STEXI 1334@item object_add 1335@findex object_add 1336Create QOM object. 1337ETEXI 1338 1339 { 1340 .name = "object_del", 1341 .args_type = "id:s", 1342 .params = "id", 1343 .help = "destroy QOM object", 1344 .cmd = hmp_object_del, 1345 .command_completion = object_del_completion, 1346 }, 1347 1348STEXI 1349@item object_del 1350@findex object_del 1351Destroy QOM object. 1352ETEXI 1353 1354#ifdef CONFIG_SLIRP 1355 { 1356 .name = "hostfwd_add", 1357 .args_type = "arg1:s,arg2:s?,arg3:s?", 1358 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1359 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1360 .cmd = hmp_hostfwd_add, 1361 }, 1362#endif 1363STEXI 1364@item hostfwd_add 1365@findex hostfwd_add 1366Redirect TCP or UDP connections from host to guest (requires -net user). 1367ETEXI 1368 1369#ifdef CONFIG_SLIRP 1370 { 1371 .name = "hostfwd_remove", 1372 .args_type = "arg1:s,arg2:s?,arg3:s?", 1373 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport", 1374 .help = "remove host-to-guest TCP or UDP redirection", 1375 .cmd = hmp_hostfwd_remove, 1376 }, 1377 1378#endif 1379STEXI 1380@item hostfwd_remove 1381@findex hostfwd_remove 1382Remove host-to-guest TCP or UDP redirection. 1383ETEXI 1384 1385 { 1386 .name = "balloon", 1387 .args_type = "value:M", 1388 .params = "target", 1389 .help = "request VM to change its memory allocation (in MB)", 1390 .cmd = hmp_balloon, 1391 }, 1392 1393STEXI 1394@item balloon @var{value} 1395@findex balloon 1396Request VM to change its memory allocation to @var{value} (in MB). 1397ETEXI 1398 1399 { 1400 .name = "set_link", 1401 .args_type = "name:s,up:b", 1402 .params = "name on|off", 1403 .help = "change the link status of a network adapter", 1404 .cmd = hmp_set_link, 1405 .command_completion = set_link_completion, 1406 }, 1407 1408STEXI 1409@item set_link @var{name} [on|off] 1410@findex set_link 1411Switch link @var{name} on (i.e. up) or off (i.e. down). 1412ETEXI 1413 1414 { 1415 .name = "watchdog_action", 1416 .args_type = "action:s", 1417 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1418 .help = "change watchdog action", 1419 .cmd = hmp_watchdog_action, 1420 .command_completion = watchdog_action_completion, 1421 }, 1422 1423STEXI 1424@item watchdog_action 1425@findex watchdog_action 1426Change watchdog action. 1427ETEXI 1428 1429 { 1430 .name = "acl_show", 1431 .args_type = "aclname:s", 1432 .params = "aclname", 1433 .help = "list rules in the access control list", 1434 .cmd = hmp_acl_show, 1435 }, 1436 1437STEXI 1438@item acl_show @var{aclname} 1439@findex acl_show 1440List all the matching rules in the access control list, and the default 1441policy. There are currently two named access control lists, 1442@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1443certificate distinguished name, and SASL username respectively. 1444ETEXI 1445 1446 { 1447 .name = "acl_policy", 1448 .args_type = "aclname:s,policy:s", 1449 .params = "aclname allow|deny", 1450 .help = "set default access control list policy", 1451 .cmd = hmp_acl_policy, 1452 }, 1453 1454STEXI 1455@item acl_policy @var{aclname} @code{allow|deny} 1456@findex acl_policy 1457Set the default access control list policy, used in the event that 1458none of the explicit rules match. The default policy at startup is 1459always @code{deny}. 1460ETEXI 1461 1462 { 1463 .name = "acl_add", 1464 .args_type = "aclname:s,match:s,policy:s,index:i?", 1465 .params = "aclname match allow|deny [index]", 1466 .help = "add a match rule to the access control list", 1467 .cmd = hmp_acl_add, 1468 }, 1469 1470STEXI 1471@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1472@findex acl_add 1473Add a match rule to the access control list, allowing or denying access. 1474The match will normally be an exact username or x509 distinguished name, 1475but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1476allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1477normally be appended to the end of the ACL, but can be inserted 1478earlier in the list if the optional @var{index} parameter is supplied. 1479ETEXI 1480 1481 { 1482 .name = "acl_remove", 1483 .args_type = "aclname:s,match:s", 1484 .params = "aclname match", 1485 .help = "remove a match rule from the access control list", 1486 .cmd = hmp_acl_remove, 1487 }, 1488 1489STEXI 1490@item acl_remove @var{aclname} @var{match} 1491@findex acl_remove 1492Remove the specified match rule from the access control list. 1493ETEXI 1494 1495 { 1496 .name = "acl_reset", 1497 .args_type = "aclname:s", 1498 .params = "aclname", 1499 .help = "reset the access control list", 1500 .cmd = hmp_acl_reset, 1501 }, 1502 1503STEXI 1504@item acl_reset @var{aclname} 1505@findex acl_reset 1506Remove all matches from the access control list, and set the default 1507policy back to @code{deny}. 1508ETEXI 1509 1510 { 1511 .name = "nbd_server_start", 1512 .args_type = "all:-a,writable:-w,uri:s", 1513 .params = "nbd_server_start [-a] [-w] host:port", 1514 .help = "serve block devices on the given host and port", 1515 .cmd = hmp_nbd_server_start, 1516 }, 1517STEXI 1518@item nbd_server_start @var{host}:@var{port} 1519@findex nbd_server_start 1520Start an NBD server on the given host and/or port. If the @option{-a} 1521option is included, all of the virtual machine's block devices that 1522have an inserted media on them are automatically exported; in this case, 1523the @option{-w} option makes the devices writable too. 1524ETEXI 1525 1526 { 1527 .name = "nbd_server_add", 1528 .args_type = "writable:-w,device:B,name:s?", 1529 .params = "nbd_server_add [-w] device [name]", 1530 .help = "export a block device via NBD", 1531 .cmd = hmp_nbd_server_add, 1532 }, 1533STEXI 1534@item nbd_server_add @var{device} [ @var{name} ] 1535@findex nbd_server_add 1536Export a block device through QEMU's NBD server, which must be started 1537beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1538exported device writable too. The export name is controlled by @var{name}, 1539defaulting to @var{device}. 1540ETEXI 1541 1542 { 1543 .name = "nbd_server_remove", 1544 .args_type = "force:-f,name:s", 1545 .params = "nbd_server_remove [-f] name", 1546 .help = "remove an export previously exposed via NBD", 1547 .cmd = hmp_nbd_server_remove, 1548 }, 1549STEXI 1550@item nbd_server_remove [-f] @var{name} 1551@findex nbd_server_remove 1552Stop exporting a block device through QEMU's NBD server, which was 1553previously started with @command{nbd_server_add}. The @option{-f} 1554option forces the server to drop the export immediately even if 1555clients are connected; otherwise the command fails unless there are no 1556clients. 1557ETEXI 1558 1559 { 1560 .name = "nbd_server_stop", 1561 .args_type = "", 1562 .params = "nbd_server_stop", 1563 .help = "stop serving block devices using the NBD protocol", 1564 .cmd = hmp_nbd_server_stop, 1565 }, 1566STEXI 1567@item nbd_server_stop 1568@findex nbd_server_stop 1569Stop the QEMU embedded NBD server. 1570ETEXI 1571 1572 1573#if defined(TARGET_I386) 1574 1575 { 1576 .name = "mce", 1577 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1578 .params = "[-b] cpu bank status mcgstatus addr misc", 1579 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1580 .cmd = hmp_mce, 1581 }, 1582 1583#endif 1584STEXI 1585@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1586@findex mce (x86) 1587Inject an MCE on the given CPU (x86 only). 1588ETEXI 1589 1590 { 1591 .name = "getfd", 1592 .args_type = "fdname:s", 1593 .params = "getfd name", 1594 .help = "receive a file descriptor via SCM rights and assign it a name", 1595 .cmd = hmp_getfd, 1596 }, 1597 1598STEXI 1599@item getfd @var{fdname} 1600@findex getfd 1601If a file descriptor is passed alongside this command using the SCM_RIGHTS 1602mechanism on unix sockets, it is stored using the name @var{fdname} for 1603later use by other monitor commands. 1604ETEXI 1605 1606 { 1607 .name = "closefd", 1608 .args_type = "fdname:s", 1609 .params = "closefd name", 1610 .help = "close a file descriptor previously passed via SCM rights", 1611 .cmd = hmp_closefd, 1612 }, 1613 1614STEXI 1615@item closefd @var{fdname} 1616@findex closefd 1617Close the file descriptor previously assigned to @var{fdname} using the 1618@code{getfd} command. This is only needed if the file descriptor was never 1619used by another monitor command. 1620ETEXI 1621 1622 { 1623 .name = "block_passwd", 1624 .args_type = "device:B,password:s", 1625 .params = "block_passwd device password", 1626 .help = "set the password of encrypted block devices", 1627 .cmd = hmp_block_passwd, 1628 }, 1629 1630STEXI 1631@item block_passwd @var{device} @var{password} 1632@findex block_passwd 1633Set the encrypted device @var{device} password to @var{password} 1634 1635This command is now obsolete and will always return an error since 2.10 1636ETEXI 1637 1638 { 1639 .name = "block_set_io_throttle", 1640 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1641 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1642 .help = "change I/O throttle limits for a block drive", 1643 .cmd = hmp_block_set_io_throttle, 1644 }, 1645 1646STEXI 1647@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1648@findex block_set_io_throttle 1649Change 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} 1650ETEXI 1651 1652 { 1653 .name = "set_password", 1654 .args_type = "protocol:s,password:s,connected:s?", 1655 .params = "protocol password action-if-connected", 1656 .help = "set spice/vnc password", 1657 .cmd = hmp_set_password, 1658 }, 1659 1660STEXI 1661@item set_password [ vnc | spice ] password [ action-if-connected ] 1662@findex set_password 1663Change spice/vnc password. Use zero to make the password stay valid 1664forever. @var{action-if-connected} specifies what should happen in 1665case a connection is established: @var{fail} makes the password change 1666fail. @var{disconnect} changes the password and disconnects the 1667client. @var{keep} changes the password and keeps the connection up. 1668@var{keep} is the default. 1669ETEXI 1670 1671 { 1672 .name = "expire_password", 1673 .args_type = "protocol:s,time:s", 1674 .params = "protocol time", 1675 .help = "set spice/vnc password expire-time", 1676 .cmd = hmp_expire_password, 1677 }, 1678 1679STEXI 1680@item expire_password [ vnc | spice ] expire-time 1681@findex expire_password 1682Specify when a password for spice/vnc becomes 1683invalid. @var{expire-time} accepts: 1684 1685@table @var 1686@item now 1687Invalidate password instantly. 1688 1689@item never 1690Password stays valid forever. 1691 1692@item +nsec 1693Password stays valid for @var{nsec} seconds starting now. 1694 1695@item nsec 1696Password is invalidated at the given time. @var{nsec} are the seconds 1697passed since 1970, i.e. unix epoch. 1698 1699@end table 1700ETEXI 1701 1702 { 1703 .name = "chardev-add", 1704 .args_type = "args:s", 1705 .params = "args", 1706 .help = "add chardev", 1707 .cmd = hmp_chardev_add, 1708 .command_completion = chardev_add_completion, 1709 }, 1710 1711STEXI 1712@item chardev-add args 1713@findex chardev-add 1714chardev-add accepts the same parameters as the -chardev command line switch. 1715 1716ETEXI 1717 1718 { 1719 .name = "chardev-change", 1720 .args_type = "id:s,args:s", 1721 .params = "id args", 1722 .help = "change chardev", 1723 .cmd = hmp_chardev_change, 1724 }, 1725 1726STEXI 1727@item chardev-change args 1728@findex chardev-change 1729chardev-change accepts existing chardev @var{id} and then the same arguments 1730as the -chardev command line switch (except for "id"). 1731 1732ETEXI 1733 1734 { 1735 .name = "chardev-remove", 1736 .args_type = "id:s", 1737 .params = "id", 1738 .help = "remove chardev", 1739 .cmd = hmp_chardev_remove, 1740 .command_completion = chardev_remove_completion, 1741 }, 1742 1743STEXI 1744@item chardev-remove id 1745@findex chardev-remove 1746Removes the chardev @var{id}. 1747 1748ETEXI 1749 1750 { 1751 .name = "chardev-send-break", 1752 .args_type = "id:s", 1753 .params = "id", 1754 .help = "send a break on chardev", 1755 .cmd = hmp_chardev_send_break, 1756 .command_completion = chardev_remove_completion, 1757 }, 1758 1759STEXI 1760@item chardev-send-break id 1761@findex chardev-send-break 1762Send a break on the chardev @var{id}. 1763 1764ETEXI 1765 1766 { 1767 .name = "qemu-io", 1768 .args_type = "device:B,command:s", 1769 .params = "[device] \"[command]\"", 1770 .help = "run a qemu-io command on a block device", 1771 .cmd = hmp_qemu_io, 1772 }, 1773 1774STEXI 1775@item qemu-io @var{device} @var{command} 1776@findex qemu-io 1777Executes a qemu-io command on the given block device. 1778 1779ETEXI 1780 1781 { 1782 .name = "cpu-add", 1783 .args_type = "id:i", 1784 .params = "id", 1785 .help = "add cpu", 1786 .cmd = hmp_cpu_add, 1787 }, 1788 1789STEXI 1790@item cpu-add @var{id} 1791@findex cpu-add 1792Add CPU with id @var{id} 1793ETEXI 1794 1795 { 1796 .name = "qom-list", 1797 .args_type = "path:s?", 1798 .params = "path", 1799 .help = "list QOM properties", 1800 .cmd = hmp_qom_list, 1801 }, 1802 1803STEXI 1804@item qom-list [@var{path}] 1805Print QOM properties of object at location @var{path} 1806ETEXI 1807 1808 { 1809 .name = "qom-set", 1810 .args_type = "path:s,property:s,value:s", 1811 .params = "path property value", 1812 .help = "set QOM property", 1813 .cmd = hmp_qom_set, 1814 }, 1815 1816STEXI 1817@item qom-set @var{path} @var{property} @var{value} 1818Set QOM property @var{property} of object at location @var{path} to value @var{value} 1819ETEXI 1820 1821 { 1822 .name = "info", 1823 .args_type = "item:s?", 1824 .params = "[subcommand]", 1825 .help = "show various information about the system state", 1826 .cmd = hmp_info_help, 1827 .sub_table = info_cmds, 1828 }, 1829 1830STEXI 1831@end table 1832ETEXI 1833