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", 257 .params = "filename", 258 .help = "save screen into PPM image 'filename'", 259 .cmd = hmp_screendump, 260 }, 261 262STEXI 263@item screendump @var{filename} 264@findex screendump 265Save screen into PPM image @var{filename}. 266ETEXI 267 268 { 269 .name = "logfile", 270 .args_type = "filename:F", 271 .params = "filename", 272 .help = "output logs to 'filename'", 273 .cmd = hmp_logfile, 274 }, 275 276STEXI 277@item logfile @var{filename} 278@findex logfile 279Output logs to @var{filename}. 280ETEXI 281 282 { 283 .name = "trace-event", 284 .args_type = "name:s,option:b,vcpu:i?", 285 .params = "name on|off [vcpu]", 286 .help = "changes status of a specific trace event " 287 "(vcpu: vCPU to set, default is all)", 288 .cmd = hmp_trace_event, 289 .command_completion = trace_event_completion, 290 }, 291 292STEXI 293@item trace-event 294@findex trace-event 295changes status of a trace event 296ETEXI 297 298#if defined(CONFIG_TRACE_SIMPLE) 299 { 300 .name = "trace-file", 301 .args_type = "op:s?,arg:F?", 302 .params = "on|off|flush|set [arg]", 303 .help = "open, close, or flush trace file, or set a new file name", 304 .cmd = hmp_trace_file, 305 }, 306 307STEXI 308@item trace-file on|off|flush 309@findex trace-file 310Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed. 311ETEXI 312#endif 313 314 { 315 .name = "log", 316 .args_type = "items:s", 317 .params = "item1[,...]", 318 .help = "activate logging of the specified items", 319 .cmd = hmp_log, 320 }, 321 322STEXI 323@item log @var{item1}[,...] 324@findex log 325Activate logging of the specified items. 326ETEXI 327 328 { 329 .name = "savevm", 330 .args_type = "name:s?", 331 .params = "[tag|id]", 332 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created", 333 .cmd = hmp_savevm, 334 }, 335 336STEXI 337@item savevm [@var{tag}|@var{id}] 338@findex savevm 339Create a snapshot of the whole virtual machine. If @var{tag} is 340provided, it is used as human readable identifier. If there is already 341a snapshot with the same tag or ID, it is replaced. More info at 342@ref{vm_snapshots}. 343ETEXI 344 345 { 346 .name = "loadvm", 347 .args_type = "name:s", 348 .params = "tag|id", 349 .help = "restore a VM snapshot from its tag or id", 350 .cmd = hmp_loadvm, 351 .command_completion = loadvm_completion, 352 }, 353 354STEXI 355@item loadvm @var{tag}|@var{id} 356@findex loadvm 357Set the whole virtual machine to the snapshot identified by the tag 358@var{tag} or the unique snapshot ID @var{id}. 359ETEXI 360 361 { 362 .name = "delvm", 363 .args_type = "name:s", 364 .params = "tag|id", 365 .help = "delete a VM snapshot from its tag or id", 366 .cmd = hmp_delvm, 367 .command_completion = delvm_completion, 368 }, 369 370STEXI 371@item delvm @var{tag}|@var{id} 372@findex delvm 373Delete the snapshot identified by @var{tag} or @var{id}. 374ETEXI 375 376 { 377 .name = "singlestep", 378 .args_type = "option:s?", 379 .params = "[on|off]", 380 .help = "run emulation in singlestep mode or switch to normal mode", 381 .cmd = hmp_singlestep, 382 }, 383 384STEXI 385@item singlestep [off] 386@findex singlestep 387Run the emulation in single step mode. 388If called with option off, the emulation returns to normal mode. 389ETEXI 390 391 { 392 .name = "stop", 393 .args_type = "", 394 .params = "", 395 .help = "stop emulation", 396 .cmd = hmp_stop, 397 }, 398 399STEXI 400@item stop 401@findex stop 402Stop emulation. 403ETEXI 404 405 { 406 .name = "c|cont", 407 .args_type = "", 408 .params = "", 409 .help = "resume emulation", 410 .cmd = hmp_cont, 411 }, 412 413STEXI 414@item c or cont 415@findex cont 416Resume emulation. 417ETEXI 418 419 { 420 .name = "system_wakeup", 421 .args_type = "", 422 .params = "", 423 .help = "wakeup guest from suspend", 424 .cmd = hmp_system_wakeup, 425 }, 426 427STEXI 428@item system_wakeup 429@findex system_wakeup 430Wakeup guest from suspend. 431ETEXI 432 433 { 434 .name = "gdbserver", 435 .args_type = "device:s?", 436 .params = "[device]", 437 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'", 438 .cmd = hmp_gdbserver, 439 }, 440 441STEXI 442@item gdbserver [@var{port}] 443@findex gdbserver 444Start gdbserver session (default @var{port}=1234) 445ETEXI 446 447 { 448 .name = "x", 449 .args_type = "fmt:/,addr:l", 450 .params = "/fmt addr", 451 .help = "virtual memory dump starting at 'addr'", 452 .cmd = hmp_memory_dump, 453 }, 454 455STEXI 456@item x/fmt @var{addr} 457@findex x 458Virtual memory dump starting at @var{addr}. 459ETEXI 460 461 { 462 .name = "xp", 463 .args_type = "fmt:/,addr:l", 464 .params = "/fmt addr", 465 .help = "physical memory dump starting at 'addr'", 466 .cmd = hmp_physical_memory_dump, 467 }, 468 469STEXI 470@item xp /@var{fmt} @var{addr} 471@findex xp 472Physical memory dump starting at @var{addr}. 473 474@var{fmt} is a format which tells the command how to format the 475data. Its syntax is: @option{/@{count@}@{format@}@{size@}} 476 477@table @var 478@item count 479is the number of items to be dumped. 480 481@item format 482can be x (hex), d (signed decimal), u (unsigned decimal), o (octal), 483c (char) or i (asm instruction). 484 485@item size 486can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86, 487@code{h} or @code{w} can be specified with the @code{i} format to 488respectively select 16 or 32 bit code instruction size. 489 490@end table 491 492Examples: 493@itemize 494@item 495Dump 10 instructions at the current instruction pointer: 496@example 497(qemu) x/10i $eip 4980x90107063: ret 4990x90107064: sti 5000x90107065: lea 0x0(%esi,1),%esi 5010x90107069: lea 0x0(%edi,1),%edi 5020x90107070: ret 5030x90107071: jmp 0x90107080 5040x90107073: nop 5050x90107074: nop 5060x90107075: nop 5070x90107076: nop 508@end example 509 510@item 511Dump 80 16 bit values at the start of the video memory. 512@smallexample 513(qemu) xp/80hx 0xb8000 5140x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42 5150x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41 5160x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72 5170x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73 5180x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20 5190x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720 5200x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5210x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5220x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 5230x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 524@end smallexample 525@end itemize 526ETEXI 527 528 { 529 .name = "gpa2hva", 530 .args_type = "addr:l", 531 .params = "addr", 532 .help = "print the host virtual address corresponding to a guest physical address", 533 .cmd = hmp_gpa2hva, 534 }, 535 536STEXI 537@item gpa2hva @var{addr} 538@findex gpa2hva 539Print the host virtual address at which the guest's physical address @var{addr} 540is mapped. 541ETEXI 542 543#ifdef CONFIG_LINUX 544 { 545 .name = "gpa2hpa", 546 .args_type = "addr:l", 547 .params = "addr", 548 .help = "print the host physical address corresponding to a guest physical address", 549 .cmd = hmp_gpa2hpa, 550 }, 551#endif 552 553STEXI 554@item gpa2hpa @var{addr} 555@findex gpa2hpa 556Print the host physical address at which the guest's physical address @var{addr} 557is mapped. 558ETEXI 559 560 { 561 .name = "p|print", 562 .args_type = "fmt:/,val:l", 563 .params = "/fmt expr", 564 .help = "print expression value (use $reg for CPU register access)", 565 .cmd = do_print, 566 }, 567 568STEXI 569@item p or print/@var{fmt} @var{expr} 570@findex print 571Print expression value. Only the @var{format} part of @var{fmt} is 572used. 573ETEXI 574 575 { 576 .name = "i", 577 .args_type = "fmt:/,addr:i,index:i.", 578 .params = "/fmt addr", 579 .help = "I/O port read", 580 .cmd = hmp_ioport_read, 581 }, 582 583STEXI 584@item i/@var{fmt} @var{addr} [.@var{index}] 585@findex i 586Read I/O port. 587ETEXI 588 589 { 590 .name = "o", 591 .args_type = "fmt:/,addr:i,val:i", 592 .params = "/fmt addr value", 593 .help = "I/O port write", 594 .cmd = hmp_ioport_write, 595 }, 596 597STEXI 598@item o/@var{fmt} @var{addr} @var{val} 599@findex o 600Write to I/O port. 601ETEXI 602 603 { 604 .name = "sendkey", 605 .args_type = "keys:s,hold-time:i?", 606 .params = "keys [hold_ms]", 607 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)", 608 .cmd = hmp_sendkey, 609 .command_completion = sendkey_completion, 610 }, 611 612STEXI 613@item sendkey @var{keys} 614@findex sendkey 615Send @var{keys} to the guest. @var{keys} could be the name of the 616key or the raw value in hexadecimal format. Use @code{-} to press 617several keys simultaneously. Example: 618@example 619sendkey ctrl-alt-f1 620@end example 621 622This command is useful to send keys that your graphical user interface 623intercepts at low level, such as @code{ctrl-alt-f1} in X Window. 624ETEXI 625 626 { 627 .name = "system_reset", 628 .args_type = "", 629 .params = "", 630 .help = "reset the system", 631 .cmd = hmp_system_reset, 632 }, 633 634STEXI 635@item system_reset 636@findex system_reset 637Reset the system. 638ETEXI 639 640 { 641 .name = "system_powerdown", 642 .args_type = "", 643 .params = "", 644 .help = "send system power down event", 645 .cmd = hmp_system_powerdown, 646 }, 647 648STEXI 649@item system_powerdown 650@findex system_powerdown 651Power down the system (if supported). 652ETEXI 653 654 { 655 .name = "sum", 656 .args_type = "start:i,size:i", 657 .params = "addr size", 658 .help = "compute the checksum of a memory region", 659 .cmd = hmp_sum, 660 }, 661 662STEXI 663@item sum @var{addr} @var{size} 664@findex sum 665Compute the checksum of a memory region. 666ETEXI 667 668 { 669 .name = "device_add", 670 .args_type = "device:O", 671 .params = "driver[,prop=value][,...]", 672 .help = "add device, like -device on the command line", 673 .cmd = hmp_device_add, 674 .command_completion = device_add_completion, 675 }, 676 677STEXI 678@item device_add @var{config} 679@findex device_add 680Add device. 681ETEXI 682 683 { 684 .name = "device_del", 685 .args_type = "id:s", 686 .params = "device", 687 .help = "remove device", 688 .cmd = hmp_device_del, 689 .command_completion = device_del_completion, 690 }, 691 692STEXI 693@item device_del @var{id} 694@findex device_del 695Remove device @var{id}. @var{id} may be a short ID 696or a QOM object path. 697ETEXI 698 699 { 700 .name = "cpu", 701 .args_type = "index:i", 702 .params = "index", 703 .help = "set the default CPU", 704 .cmd = hmp_cpu, 705 }, 706 707STEXI 708@item cpu @var{index} 709@findex cpu 710Set the default CPU. 711ETEXI 712 713 { 714 .name = "mouse_move", 715 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 716 .params = "dx dy [dz]", 717 .help = "send mouse move events", 718 .cmd = hmp_mouse_move, 719 }, 720 721STEXI 722@item mouse_move @var{dx} @var{dy} [@var{dz}] 723@findex mouse_move 724Move the active mouse to the specified coordinates @var{dx} @var{dy} 725with optional scroll axis @var{dz}. 726ETEXI 727 728 { 729 .name = "mouse_button", 730 .args_type = "button_state:i", 731 .params = "state", 732 .help = "change mouse button state (1=L, 2=M, 4=R)", 733 .cmd = hmp_mouse_button, 734 }, 735 736STEXI 737@item mouse_button @var{val} 738@findex mouse_button 739Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 740ETEXI 741 742 { 743 .name = "mouse_set", 744 .args_type = "index:i", 745 .params = "index", 746 .help = "set which mouse device receives events", 747 .cmd = hmp_mouse_set, 748 }, 749 750STEXI 751@item mouse_set @var{index} 752@findex mouse_set 753Set which mouse device receives events at given @var{index}, index 754can be obtained with 755@example 756info mice 757@end example 758ETEXI 759 760 { 761 .name = "wavcapture", 762 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 763 .params = "path [frequency [bits [channels]]]", 764 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 765 .cmd = hmp_wavcapture, 766 }, 767STEXI 768@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 769@findex wavcapture 770Capture audio into @var{filename}. Using sample rate @var{frequency} 771bits per sample @var{bits} and number of channels @var{channels}. 772 773Defaults: 774@itemize @minus 775@item Sample rate = 44100 Hz - CD quality 776@item Bits = 16 777@item Number of channels = 2 - Stereo 778@end itemize 779ETEXI 780 781 { 782 .name = "stopcapture", 783 .args_type = "n:i", 784 .params = "capture index", 785 .help = "stop capture", 786 .cmd = hmp_stopcapture, 787 }, 788STEXI 789@item stopcapture @var{index} 790@findex stopcapture 791Stop capture with a given @var{index}, index can be obtained with 792@example 793info capture 794@end example 795ETEXI 796 797 { 798 .name = "memsave", 799 .args_type = "val:l,size:i,filename:s", 800 .params = "addr size file", 801 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 802 .cmd = hmp_memsave, 803 }, 804 805STEXI 806@item memsave @var{addr} @var{size} @var{file} 807@findex memsave 808save to disk virtual memory dump starting at @var{addr} of size @var{size}. 809ETEXI 810 811 { 812 .name = "pmemsave", 813 .args_type = "val:l,size:i,filename:s", 814 .params = "addr size file", 815 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 816 .cmd = hmp_pmemsave, 817 }, 818 819STEXI 820@item pmemsave @var{addr} @var{size} @var{file} 821@findex pmemsave 822save to disk physical memory dump starting at @var{addr} of size @var{size}. 823ETEXI 824 825 { 826 .name = "boot_set", 827 .args_type = "bootdevice:s", 828 .params = "bootdevice", 829 .help = "define new values for the boot device list", 830 .cmd = hmp_boot_set, 831 }, 832 833STEXI 834@item boot_set @var{bootdevicelist} 835@findex boot_set 836Define new values for the boot device list. Those values will override 837the values specified on the command line through the @code{-boot} option. 838 839The values that can be specified here depend on the machine type, but are 840the same that can be specified in the @code{-boot} command line option. 841ETEXI 842 843 { 844 .name = "nmi", 845 .args_type = "", 846 .params = "", 847 .help = "inject an NMI", 848 .cmd = hmp_nmi, 849 }, 850STEXI 851@item nmi @var{cpu} 852@findex nmi 853Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). 854 855ETEXI 856 857 { 858 .name = "ringbuf_write", 859 .args_type = "device:s,data:s", 860 .params = "device data", 861 .help = "Write to a ring buffer character device", 862 .cmd = hmp_ringbuf_write, 863 .command_completion = ringbuf_write_completion, 864 }, 865 866STEXI 867@item ringbuf_write @var{device} @var{data} 868@findex ringbuf_write 869Write @var{data} to ring buffer character device @var{device}. 870@var{data} must be a UTF-8 string. 871 872ETEXI 873 874 { 875 .name = "ringbuf_read", 876 .args_type = "device:s,size:i", 877 .params = "device size", 878 .help = "Read from a ring buffer character device", 879 .cmd = hmp_ringbuf_read, 880 .command_completion = ringbuf_write_completion, 881 }, 882 883STEXI 884@item ringbuf_read @var{device} 885@findex ringbuf_read 886Read and print up to @var{size} bytes from ring buffer character 887device @var{device}. 888Certain non-printable characters are printed \uXXXX, where XXXX is the 889character code in hexadecimal. Character \ is printed \\. 890Bug: can screw up when the buffer contains invalid UTF-8 sequences, 891NUL characters, after the ring buffer lost data, and when reading 892stops because the size limit is reached. 893 894ETEXI 895 896 { 897 .name = "migrate", 898 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 899 .params = "[-d] [-b] [-i] uri", 900 .help = "migrate to URI (using -d to not wait for completion)" 901 "\n\t\t\t -b for migration without shared storage with" 902 " full copy of disk\n\t\t\t -i for migration without " 903 "shared storage with incremental copy of disk " 904 "(base image shared between src and destination)", 905 .cmd = hmp_migrate, 906 }, 907 908 909STEXI 910@item migrate [-d] [-b] [-i] @var{uri} 911@findex migrate 912Migrate to @var{uri} (using -d to not wait for completion). 913 -b for migration with full copy of disk 914 -i for migration with incremental copy of disk (base image is shared) 915ETEXI 916 917 { 918 .name = "migrate_cancel", 919 .args_type = "", 920 .params = "", 921 .help = "cancel the current VM migration", 922 .cmd = hmp_migrate_cancel, 923 }, 924 925STEXI 926@item migrate_cancel 927@findex migrate_cancel 928Cancel the current VM migration. 929ETEXI 930 931 { 932 .name = "migrate_continue", 933 .args_type = "state:s", 934 .params = "state", 935 .help = "Continue migration from the given paused state", 936 .cmd = hmp_migrate_continue, 937 }, 938STEXI 939@item migrate_continue @var{state} 940@findex migrate_continue 941Continue migration from the paused state @var{state} 942ETEXI 943 944 { 945 .name = "migrate_incoming", 946 .args_type = "uri:s", 947 .params = "uri", 948 .help = "Continue an incoming migration from an -incoming defer", 949 .cmd = hmp_migrate_incoming, 950 }, 951 952STEXI 953@item migrate_incoming @var{uri} 954@findex migrate_incoming 955Continue an incoming migration using the @var{uri} (that has the same syntax 956as the -incoming option). 957 958ETEXI 959 960 { 961 .name = "migrate_set_cache_size", 962 .args_type = "value:o", 963 .params = "value", 964 .help = "set cache size (in bytes) for XBZRLE migrations," 965 "the cache size will be rounded down to the nearest " 966 "power of 2.\n" 967 "The cache size affects the number of cache misses." 968 "In case of a high cache miss ratio you need to increase" 969 " the cache size", 970 .cmd = hmp_migrate_set_cache_size, 971 }, 972 973STEXI 974@item migrate_set_cache_size @var{value} 975@findex migrate_set_cache_size 976Set cache size to @var{value} (in bytes) for xbzrle migrations. 977ETEXI 978 979 { 980 .name = "migrate_set_speed", 981 .args_type = "value:o", 982 .params = "value", 983 .help = "set maximum speed (in bytes) for migrations. " 984 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 985 .cmd = hmp_migrate_set_speed, 986 }, 987 988STEXI 989@item migrate_set_speed @var{value} 990@findex migrate_set_speed 991Set maximum speed to @var{value} (in bytes) for migrations. 992ETEXI 993 994 { 995 .name = "migrate_set_downtime", 996 .args_type = "value:T", 997 .params = "value", 998 .help = "set maximum tolerated downtime (in seconds) for migrations", 999 .cmd = hmp_migrate_set_downtime, 1000 }, 1001 1002STEXI 1003@item migrate_set_downtime @var{second} 1004@findex migrate_set_downtime 1005Set maximum tolerated downtime (in seconds) for migration. 1006ETEXI 1007 1008 { 1009 .name = "migrate_set_capability", 1010 .args_type = "capability:s,state:b", 1011 .params = "capability state", 1012 .help = "Enable/Disable the usage of a capability for migration", 1013 .cmd = hmp_migrate_set_capability, 1014 .command_completion = migrate_set_capability_completion, 1015 }, 1016 1017STEXI 1018@item migrate_set_capability @var{capability} @var{state} 1019@findex migrate_set_capability 1020Enable/Disable the usage of a capability @var{capability} for migration. 1021ETEXI 1022 1023 { 1024 .name = "migrate_set_parameter", 1025 .args_type = "parameter:s,value:s", 1026 .params = "parameter value", 1027 .help = "Set the parameter for migration", 1028 .cmd = hmp_migrate_set_parameter, 1029 .command_completion = migrate_set_parameter_completion, 1030 }, 1031 1032STEXI 1033@item migrate_set_parameter @var{parameter} @var{value} 1034@findex migrate_set_parameter 1035Set the parameter @var{parameter} for migration. 1036ETEXI 1037 1038 { 1039 .name = "migrate_start_postcopy", 1040 .args_type = "", 1041 .params = "", 1042 .help = "Followup to a migration command to switch the migration" 1043 " to postcopy mode. The postcopy-ram capability must " 1044 "be set on both source and destination before the " 1045 "original migration command .", 1046 .cmd = hmp_migrate_start_postcopy, 1047 }, 1048 1049STEXI 1050@item migrate_start_postcopy 1051@findex migrate_start_postcopy 1052Switch in-progress migration to postcopy mode. Ignored after the end of 1053migration (or once already in postcopy). 1054ETEXI 1055 1056 { 1057 .name = "x_colo_lost_heartbeat", 1058 .args_type = "", 1059 .params = "", 1060 .help = "Tell COLO that heartbeat is lost,\n\t\t\t" 1061 "a failover or takeover is needed.", 1062 .cmd = hmp_x_colo_lost_heartbeat, 1063 }, 1064 1065STEXI 1066@item x_colo_lost_heartbeat 1067@findex x_colo_lost_heartbeat 1068Tell COLO that heartbeat is lost, a failover or takeover is needed. 1069ETEXI 1070 1071 { 1072 .name = "client_migrate_info", 1073 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1074 .params = "protocol hostname port tls-port cert-subject", 1075 .help = "set migration information for remote display", 1076 .cmd = hmp_client_migrate_info, 1077 }, 1078 1079STEXI 1080@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1081@findex client_migrate_info 1082Set migration information for remote display. This makes the server 1083ask the client to automatically reconnect using the new parameters 1084once migration finished successfully. Only implemented for SPICE. 1085ETEXI 1086 1087 { 1088 .name = "dump-guest-memory", 1089 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", 1090 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]", 1091 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1092 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1093 "-d: return immediately (do not wait for completion).\n\t\t\t" 1094 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1095 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1096 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1097 "begin: the starting physical address.\n\t\t\t" 1098 "length: the memory size, in bytes.", 1099 .cmd = hmp_dump_guest_memory, 1100 }, 1101 1102 1103STEXI 1104@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1105@item dump-guest-memory [-z|-l|-s] @var{filename} 1106@findex dump-guest-memory 1107Dump guest memory to @var{protocol}. The file can be processed with crash or 1108gdb. Without -z|-l|-s, the dump format is ELF. 1109 -p: do paging to get guest's memory mapping. 1110 -z: dump in kdump-compressed format, with zlib compression. 1111 -l: dump in kdump-compressed format, with lzo compression. 1112 -s: dump in kdump-compressed format, with snappy compression. 1113 filename: dump file name. 1114 begin: the starting physical address. It's optional, and should be 1115 specified together with length. 1116 length: the memory size, in bytes. It's optional, and should be specified 1117 together with begin. 1118ETEXI 1119 1120#if defined(TARGET_S390X) 1121 { 1122 .name = "dump-skeys", 1123 .args_type = "filename:F", 1124 .params = "", 1125 .help = "Save guest storage keys into file 'filename'.\n", 1126 .cmd = hmp_dump_skeys, 1127 }, 1128#endif 1129 1130STEXI 1131@item dump-skeys @var{filename} 1132@findex dump-skeys 1133Save guest storage keys to a file. 1134ETEXI 1135 1136#if defined(TARGET_S390X) 1137 { 1138 .name = "migration_mode", 1139 .args_type = "mode:i", 1140 .params = "mode", 1141 .help = "Enables or disables migration mode\n", 1142 .cmd = hmp_migrationmode, 1143 }, 1144#endif 1145 1146STEXI 1147@item migration_mode @var{mode} 1148@findex migration_mode 1149Enables or disables migration mode. 1150ETEXI 1151 1152 { 1153 .name = "snapshot_blkdev", 1154 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1155 .params = "[-n] device [new-image-file] [format]", 1156 .help = "initiates a live snapshot\n\t\t\t" 1157 "of device. If a new image file is specified, the\n\t\t\t" 1158 "new image file will become the new root image.\n\t\t\t" 1159 "If format is specified, the snapshot file will\n\t\t\t" 1160 "be created in that format.\n\t\t\t" 1161 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1162 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1163 "recreating it from scratch.", 1164 .cmd = hmp_snapshot_blkdev, 1165 }, 1166 1167STEXI 1168@item snapshot_blkdev 1169@findex snapshot_blkdev 1170Snapshot device, using snapshot file as target if provided 1171ETEXI 1172 1173 { 1174 .name = "snapshot_blkdev_internal", 1175 .args_type = "device:B,name:s", 1176 .params = "device name", 1177 .help = "take an internal snapshot of device.\n\t\t\t" 1178 "The format of the image used by device must\n\t\t\t" 1179 "support it, such as qcow2.\n\t\t\t", 1180 .cmd = hmp_snapshot_blkdev_internal, 1181 }, 1182 1183STEXI 1184@item snapshot_blkdev_internal 1185@findex snapshot_blkdev_internal 1186Take an internal snapshot on device if it support 1187ETEXI 1188 1189 { 1190 .name = "snapshot_delete_blkdev_internal", 1191 .args_type = "device:B,name:s,id:s?", 1192 .params = "device name [id]", 1193 .help = "delete an internal snapshot of device.\n\t\t\t" 1194 "If id is specified, qemu will try delete\n\t\t\t" 1195 "the snapshot matching both id and name.\n\t\t\t" 1196 "The format of the image used by device must\n\t\t\t" 1197 "support it, such as qcow2.\n\t\t\t", 1198 .cmd = hmp_snapshot_delete_blkdev_internal, 1199 }, 1200 1201STEXI 1202@item snapshot_delete_blkdev_internal 1203@findex snapshot_delete_blkdev_internal 1204Delete an internal snapshot on device if it support 1205ETEXI 1206 1207 { 1208 .name = "drive_mirror", 1209 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1210 .params = "[-n] [-f] device target [format]", 1211 .help = "initiates live storage\n\t\t\t" 1212 "migration for a device. The device's contents are\n\t\t\t" 1213 "copied to the new image file, including data that\n\t\t\t" 1214 "is written after the command is started.\n\t\t\t" 1215 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1216 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1217 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1218 "so that the result does not need a backing file.\n\t\t\t", 1219 .cmd = hmp_drive_mirror, 1220 }, 1221STEXI 1222@item drive_mirror 1223@findex drive_mirror 1224Start mirroring a block device's writes to a new destination, 1225using the specified target. 1226ETEXI 1227 1228 { 1229 .name = "drive_backup", 1230 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?", 1231 .params = "[-n] [-f] [-c] device target [format]", 1232 .help = "initiates a point-in-time\n\t\t\t" 1233 "copy for a device. The device's contents are\n\t\t\t" 1234 "copied to the new image file, excluding data that\n\t\t\t" 1235 "is written after the command is started.\n\t\t\t" 1236 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1237 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1238 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1239 "so that the result does not need a backing file.\n\t\t\t" 1240 "The -c flag requests QEMU to compress backup data\n\t\t\t" 1241 "(if the target format supports it).\n\t\t\t", 1242 .cmd = hmp_drive_backup, 1243 }, 1244STEXI 1245@item drive_backup 1246@findex drive_backup 1247Start a point-in-time copy of a block device to a specificed target. 1248ETEXI 1249 1250 { 1251 .name = "drive_add", 1252 .args_type = "node:-n,pci_addr:s,opts:s", 1253 .params = "[-n] [[<domain>:]<bus>:]<slot>\n" 1254 "[file=file][,if=type][,bus=n]\n" 1255 "[,unit=m][,media=d][,index=i]\n" 1256 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1257 "[,snapshot=on|off][,cache=on|off]\n" 1258 "[,readonly=on|off][,copy-on-read=on|off]", 1259 .help = "add drive to PCI storage controller", 1260 .cmd = hmp_drive_add, 1261 }, 1262 1263STEXI 1264@item drive_add 1265@findex drive_add 1266Add drive to PCI storage controller. 1267ETEXI 1268 1269 { 1270 .name = "pcie_aer_inject_error", 1271 .args_type = "advisory_non_fatal:-a,correctable:-c," 1272 "id:s,error_status:s," 1273 "header0:i?,header1:i?,header2:i?,header3:i?," 1274 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1275 .params = "[-a] [-c] id " 1276 "<error_status> [<tlp header> [<tlp header prefix>]]", 1277 .help = "inject pcie aer error\n\t\t\t" 1278 " -a for advisory non fatal error\n\t\t\t" 1279 " -c for correctable error\n\t\t\t" 1280 "<id> = qdev device id\n\t\t\t" 1281 "<error_status> = error string or 32bit\n\t\t\t" 1282 "<tlb header> = 32bit x 4\n\t\t\t" 1283 "<tlb header prefix> = 32bit x 4", 1284 .cmd = hmp_pcie_aer_inject_error, 1285 }, 1286 1287STEXI 1288@item pcie_aer_inject_error 1289@findex pcie_aer_inject_error 1290Inject PCIe AER error 1291ETEXI 1292 1293 { 1294 .name = "host_net_add", 1295 .args_type = "device:s,opts:s?", 1296 .params = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]", 1297 .help = "add host VLAN client (deprecated, use netdev_add instead)", 1298 .cmd = hmp_host_net_add, 1299 .command_completion = host_net_add_completion, 1300 }, 1301 1302STEXI 1303@item host_net_add 1304@findex host_net_add 1305Add host VLAN client. Deprecated, please use @code{netdev_add} instead. 1306ETEXI 1307 1308 { 1309 .name = "host_net_remove", 1310 .args_type = "vlan_id:i,device:s", 1311 .params = "vlan_id name", 1312 .help = "remove host VLAN client (deprecated, use netdev_del instead)", 1313 .cmd = hmp_host_net_remove, 1314 .command_completion = host_net_remove_completion, 1315 }, 1316 1317STEXI 1318@item host_net_remove 1319@findex host_net_remove 1320Remove host VLAN client. Deprecated, please use @code{netdev_del} instead. 1321ETEXI 1322 1323 { 1324 .name = "netdev_add", 1325 .args_type = "netdev:O", 1326 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1327 .help = "add host network device", 1328 .cmd = hmp_netdev_add, 1329 .command_completion = netdev_add_completion, 1330 }, 1331 1332STEXI 1333@item netdev_add 1334@findex netdev_add 1335Add host network device. 1336ETEXI 1337 1338 { 1339 .name = "netdev_del", 1340 .args_type = "id:s", 1341 .params = "id", 1342 .help = "remove host network device", 1343 .cmd = hmp_netdev_del, 1344 .command_completion = netdev_del_completion, 1345 }, 1346 1347STEXI 1348@item netdev_del 1349@findex netdev_del 1350Remove host network device. 1351ETEXI 1352 1353 { 1354 .name = "object_add", 1355 .args_type = "object:O", 1356 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1357 .help = "create QOM object", 1358 .cmd = hmp_object_add, 1359 .command_completion = object_add_completion, 1360 }, 1361 1362STEXI 1363@item object_add 1364@findex object_add 1365Create QOM object. 1366ETEXI 1367 1368 { 1369 .name = "object_del", 1370 .args_type = "id:s", 1371 .params = "id", 1372 .help = "destroy QOM object", 1373 .cmd = hmp_object_del, 1374 .command_completion = object_del_completion, 1375 }, 1376 1377STEXI 1378@item object_del 1379@findex object_del 1380Destroy QOM object. 1381ETEXI 1382 1383#ifdef CONFIG_SLIRP 1384 { 1385 .name = "hostfwd_add", 1386 .args_type = "arg1:s,arg2:s?,arg3:s?", 1387 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1388 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1389 .cmd = hmp_hostfwd_add, 1390 }, 1391#endif 1392STEXI 1393@item hostfwd_add 1394@findex hostfwd_add 1395Redirect TCP or UDP connections from host to guest (requires -net user). 1396ETEXI 1397 1398#ifdef CONFIG_SLIRP 1399 { 1400 .name = "hostfwd_remove", 1401 .args_type = "arg1:s,arg2:s?,arg3:s?", 1402 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport", 1403 .help = "remove host-to-guest TCP or UDP redirection", 1404 .cmd = hmp_hostfwd_remove, 1405 }, 1406 1407#endif 1408STEXI 1409@item hostfwd_remove 1410@findex hostfwd_remove 1411Remove host-to-guest TCP or UDP redirection. 1412ETEXI 1413 1414 { 1415 .name = "balloon", 1416 .args_type = "value:M", 1417 .params = "target", 1418 .help = "request VM to change its memory allocation (in MB)", 1419 .cmd = hmp_balloon, 1420 }, 1421 1422STEXI 1423@item balloon @var{value} 1424@findex balloon 1425Request VM to change its memory allocation to @var{value} (in MB). 1426ETEXI 1427 1428 { 1429 .name = "set_link", 1430 .args_type = "name:s,up:b", 1431 .params = "name on|off", 1432 .help = "change the link status of a network adapter", 1433 .cmd = hmp_set_link, 1434 .command_completion = set_link_completion, 1435 }, 1436 1437STEXI 1438@item set_link @var{name} [on|off] 1439@findex set_link 1440Switch link @var{name} on (i.e. up) or off (i.e. down). 1441ETEXI 1442 1443 { 1444 .name = "watchdog_action", 1445 .args_type = "action:s", 1446 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1447 .help = "change watchdog action", 1448 .cmd = hmp_watchdog_action, 1449 .command_completion = watchdog_action_completion, 1450 }, 1451 1452STEXI 1453@item watchdog_action 1454@findex watchdog_action 1455Change watchdog action. 1456ETEXI 1457 1458 { 1459 .name = "acl_show", 1460 .args_type = "aclname:s", 1461 .params = "aclname", 1462 .help = "list rules in the access control list", 1463 .cmd = hmp_acl_show, 1464 }, 1465 1466STEXI 1467@item acl_show @var{aclname} 1468@findex acl_show 1469List all the matching rules in the access control list, and the default 1470policy. There are currently two named access control lists, 1471@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1472certificate distinguished name, and SASL username respectively. 1473ETEXI 1474 1475 { 1476 .name = "acl_policy", 1477 .args_type = "aclname:s,policy:s", 1478 .params = "aclname allow|deny", 1479 .help = "set default access control list policy", 1480 .cmd = hmp_acl_policy, 1481 }, 1482 1483STEXI 1484@item acl_policy @var{aclname} @code{allow|deny} 1485@findex acl_policy 1486Set the default access control list policy, used in the event that 1487none of the explicit rules match. The default policy at startup is 1488always @code{deny}. 1489ETEXI 1490 1491 { 1492 .name = "acl_add", 1493 .args_type = "aclname:s,match:s,policy:s,index:i?", 1494 .params = "aclname match allow|deny [index]", 1495 .help = "add a match rule to the access control list", 1496 .cmd = hmp_acl_add, 1497 }, 1498 1499STEXI 1500@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1501@findex acl_add 1502Add a match rule to the access control list, allowing or denying access. 1503The match will normally be an exact username or x509 distinguished name, 1504but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1505allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1506normally be appended to the end of the ACL, but can be inserted 1507earlier in the list if the optional @var{index} parameter is supplied. 1508ETEXI 1509 1510 { 1511 .name = "acl_remove", 1512 .args_type = "aclname:s,match:s", 1513 .params = "aclname match", 1514 .help = "remove a match rule from the access control list", 1515 .cmd = hmp_acl_remove, 1516 }, 1517 1518STEXI 1519@item acl_remove @var{aclname} @var{match} 1520@findex acl_remove 1521Remove the specified match rule from the access control list. 1522ETEXI 1523 1524 { 1525 .name = "acl_reset", 1526 .args_type = "aclname:s", 1527 .params = "aclname", 1528 .help = "reset the access control list", 1529 .cmd = hmp_acl_reset, 1530 }, 1531 1532STEXI 1533@item acl_reset @var{aclname} 1534@findex acl_reset 1535Remove all matches from the access control list, and set the default 1536policy back to @code{deny}. 1537ETEXI 1538 1539 { 1540 .name = "nbd_server_start", 1541 .args_type = "all:-a,writable:-w,uri:s", 1542 .params = "nbd_server_start [-a] [-w] host:port", 1543 .help = "serve block devices on the given host and port", 1544 .cmd = hmp_nbd_server_start, 1545 }, 1546STEXI 1547@item nbd_server_start @var{host}:@var{port} 1548@findex nbd_server_start 1549Start an NBD server on the given host and/or port. If the @option{-a} 1550option is included, all of the virtual machine's block devices that 1551have an inserted media on them are automatically exported; in this case, 1552the @option{-w} option makes the devices writable too. 1553ETEXI 1554 1555 { 1556 .name = "nbd_server_add", 1557 .args_type = "writable:-w,device:B,name:s?", 1558 .params = "nbd_server_add [-w] device [name]", 1559 .help = "export a block device via NBD", 1560 .cmd = hmp_nbd_server_add, 1561 }, 1562STEXI 1563@item nbd_server_add @var{device} [ @var{name} ] 1564@findex nbd_server_add 1565Export a block device through QEMU's NBD server, which must be started 1566beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1567exported device writable too. The export name is controlled by @var{name}, 1568defaulting to @var{device}. 1569ETEXI 1570 1571 { 1572 .name = "nbd_server_remove", 1573 .args_type = "force:-f,name:s", 1574 .params = "nbd_server_remove [-f] name", 1575 .help = "remove an export previously exposed via NBD", 1576 .cmd = hmp_nbd_server_remove, 1577 }, 1578STEXI 1579@item nbd_server_remove [-f] @var{name} 1580@findex nbd_server_remove 1581Stop exporting a block device through QEMU's NBD server, which was 1582previously started with @command{nbd_server_add}. The @option{-f} 1583option forces the server to drop the export immediately even if 1584clients are connected; otherwise the command fails unless there are no 1585clients. 1586ETEXI 1587 1588 { 1589 .name = "nbd_server_stop", 1590 .args_type = "", 1591 .params = "nbd_server_stop", 1592 .help = "stop serving block devices using the NBD protocol", 1593 .cmd = hmp_nbd_server_stop, 1594 }, 1595STEXI 1596@item nbd_server_stop 1597@findex nbd_server_stop 1598Stop the QEMU embedded NBD server. 1599ETEXI 1600 1601 1602#if defined(TARGET_I386) 1603 1604 { 1605 .name = "mce", 1606 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1607 .params = "[-b] cpu bank status mcgstatus addr misc", 1608 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1609 .cmd = hmp_mce, 1610 }, 1611 1612#endif 1613STEXI 1614@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1615@findex mce (x86) 1616Inject an MCE on the given CPU (x86 only). 1617ETEXI 1618 1619 { 1620 .name = "getfd", 1621 .args_type = "fdname:s", 1622 .params = "getfd name", 1623 .help = "receive a file descriptor via SCM rights and assign it a name", 1624 .cmd = hmp_getfd, 1625 }, 1626 1627STEXI 1628@item getfd @var{fdname} 1629@findex getfd 1630If a file descriptor is passed alongside this command using the SCM_RIGHTS 1631mechanism on unix sockets, it is stored using the name @var{fdname} for 1632later use by other monitor commands. 1633ETEXI 1634 1635 { 1636 .name = "closefd", 1637 .args_type = "fdname:s", 1638 .params = "closefd name", 1639 .help = "close a file descriptor previously passed via SCM rights", 1640 .cmd = hmp_closefd, 1641 }, 1642 1643STEXI 1644@item closefd @var{fdname} 1645@findex closefd 1646Close the file descriptor previously assigned to @var{fdname} using the 1647@code{getfd} command. This is only needed if the file descriptor was never 1648used by another monitor command. 1649ETEXI 1650 1651 { 1652 .name = "block_passwd", 1653 .args_type = "device:B,password:s", 1654 .params = "block_passwd device password", 1655 .help = "set the password of encrypted block devices", 1656 .cmd = hmp_block_passwd, 1657 }, 1658 1659STEXI 1660@item block_passwd @var{device} @var{password} 1661@findex block_passwd 1662Set the encrypted device @var{device} password to @var{password} 1663 1664This command is now obsolete and will always return an error since 2.10 1665ETEXI 1666 1667 { 1668 .name = "block_set_io_throttle", 1669 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1670 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1671 .help = "change I/O throttle limits for a block drive", 1672 .cmd = hmp_block_set_io_throttle, 1673 }, 1674 1675STEXI 1676@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1677@findex block_set_io_throttle 1678Change 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} 1679ETEXI 1680 1681 { 1682 .name = "set_password", 1683 .args_type = "protocol:s,password:s,connected:s?", 1684 .params = "protocol password action-if-connected", 1685 .help = "set spice/vnc password", 1686 .cmd = hmp_set_password, 1687 }, 1688 1689STEXI 1690@item set_password [ vnc | spice ] password [ action-if-connected ] 1691@findex set_password 1692Change spice/vnc password. Use zero to make the password stay valid 1693forever. @var{action-if-connected} specifies what should happen in 1694case a connection is established: @var{fail} makes the password change 1695fail. @var{disconnect} changes the password and disconnects the 1696client. @var{keep} changes the password and keeps the connection up. 1697@var{keep} is the default. 1698ETEXI 1699 1700 { 1701 .name = "expire_password", 1702 .args_type = "protocol:s,time:s", 1703 .params = "protocol time", 1704 .help = "set spice/vnc password expire-time", 1705 .cmd = hmp_expire_password, 1706 }, 1707 1708STEXI 1709@item expire_password [ vnc | spice ] expire-time 1710@findex expire_password 1711Specify when a password for spice/vnc becomes 1712invalid. @var{expire-time} accepts: 1713 1714@table @var 1715@item now 1716Invalidate password instantly. 1717 1718@item never 1719Password stays valid forever. 1720 1721@item +nsec 1722Password stays valid for @var{nsec} seconds starting now. 1723 1724@item nsec 1725Password is invalidated at the given time. @var{nsec} are the seconds 1726passed since 1970, i.e. unix epoch. 1727 1728@end table 1729ETEXI 1730 1731 { 1732 .name = "chardev-add", 1733 .args_type = "args:s", 1734 .params = "args", 1735 .help = "add chardev", 1736 .cmd = hmp_chardev_add, 1737 .command_completion = chardev_add_completion, 1738 }, 1739 1740STEXI 1741@item chardev-add args 1742@findex chardev-add 1743chardev-add accepts the same parameters as the -chardev command line switch. 1744 1745ETEXI 1746 1747 { 1748 .name = "chardev-change", 1749 .args_type = "id:s,args:s", 1750 .params = "id args", 1751 .help = "change chardev", 1752 .cmd = hmp_chardev_change, 1753 }, 1754 1755STEXI 1756@item chardev-change args 1757@findex chardev-change 1758chardev-change accepts existing chardev @var{id} and then the same arguments 1759as the -chardev command line switch (except for "id"). 1760 1761ETEXI 1762 1763 { 1764 .name = "chardev-remove", 1765 .args_type = "id:s", 1766 .params = "id", 1767 .help = "remove chardev", 1768 .cmd = hmp_chardev_remove, 1769 .command_completion = chardev_remove_completion, 1770 }, 1771 1772STEXI 1773@item chardev-remove id 1774@findex chardev-remove 1775Removes the chardev @var{id}. 1776 1777ETEXI 1778 1779 { 1780 .name = "chardev-send-break", 1781 .args_type = "id:s", 1782 .params = "id", 1783 .help = "send a break on chardev", 1784 .cmd = hmp_chardev_send_break, 1785 .command_completion = chardev_remove_completion, 1786 }, 1787 1788STEXI 1789@item chardev-send-break id 1790@findex chardev-send-break 1791Send a break on the chardev @var{id}. 1792 1793ETEXI 1794 1795 { 1796 .name = "qemu-io", 1797 .args_type = "device:B,command:s", 1798 .params = "[device] \"[command]\"", 1799 .help = "run a qemu-io command on a block device", 1800 .cmd = hmp_qemu_io, 1801 }, 1802 1803STEXI 1804@item qemu-io @var{device} @var{command} 1805@findex qemu-io 1806Executes a qemu-io command on the given block device. 1807 1808ETEXI 1809 1810 { 1811 .name = "cpu-add", 1812 .args_type = "id:i", 1813 .params = "id", 1814 .help = "add cpu", 1815 .cmd = hmp_cpu_add, 1816 }, 1817 1818STEXI 1819@item cpu-add @var{id} 1820@findex cpu-add 1821Add CPU with id @var{id} 1822ETEXI 1823 1824 { 1825 .name = "qom-list", 1826 .args_type = "path:s?", 1827 .params = "path", 1828 .help = "list QOM properties", 1829 .cmd = hmp_qom_list, 1830 }, 1831 1832STEXI 1833@item qom-list [@var{path}] 1834Print QOM properties of object at location @var{path} 1835ETEXI 1836 1837 { 1838 .name = "qom-set", 1839 .args_type = "path:s,property:s,value:s", 1840 .params = "path property value", 1841 .help = "set QOM property", 1842 .cmd = hmp_qom_set, 1843 }, 1844 1845STEXI 1846@item qom-set @var{path} @var{property} @var{value} 1847Set QOM property @var{property} of object at location @var{path} to value @var{value} 1848ETEXI 1849 1850 { 1851 .name = "info", 1852 .args_type = "item:s?", 1853 .params = "[subcommand]", 1854 .help = "show various information about the system state", 1855 .cmd = hmp_info_help, 1856 .sub_table = info_cmds, 1857 }, 1858 1859STEXI 1860@end table 1861ETEXI 1862