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 = "usb_add", 670 .args_type = "devname:s", 671 .params = "device", 672 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')", 673 .cmd = hmp_usb_add, 674 }, 675 676STEXI 677@item usb_add @var{devname} 678@findex usb_add 679Add the USB device @var{devname}. This command is deprecated, please 680use @code{device_add} instead. For details of available devices see 681@ref{usb_devices} 682ETEXI 683 684 { 685 .name = "usb_del", 686 .args_type = "devname:s", 687 .params = "device", 688 .help = "remove USB device 'bus.addr'", 689 .cmd = hmp_usb_del, 690 }, 691 692STEXI 693@item usb_del @var{devname} 694@findex usb_del 695Remove the USB device @var{devname} from the QEMU virtual USB 696hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor 697command @code{info usb} to see the devices you can remove. This 698command is deprecated, please use @code{device_del} instead. 699ETEXI 700 701 { 702 .name = "device_add", 703 .args_type = "device:O", 704 .params = "driver[,prop=value][,...]", 705 .help = "add device, like -device on the command line", 706 .cmd = hmp_device_add, 707 .command_completion = device_add_completion, 708 }, 709 710STEXI 711@item device_add @var{config} 712@findex device_add 713Add device. 714ETEXI 715 716 { 717 .name = "device_del", 718 .args_type = "id:s", 719 .params = "device", 720 .help = "remove device", 721 .cmd = hmp_device_del, 722 .command_completion = device_del_completion, 723 }, 724 725STEXI 726@item device_del @var{id} 727@findex device_del 728Remove device @var{id}. @var{id} may be a short ID 729or a QOM object path. 730ETEXI 731 732 { 733 .name = "cpu", 734 .args_type = "index:i", 735 .params = "index", 736 .help = "set the default CPU", 737 .cmd = hmp_cpu, 738 }, 739 740STEXI 741@item cpu @var{index} 742@findex cpu 743Set the default CPU. 744ETEXI 745 746 { 747 .name = "mouse_move", 748 .args_type = "dx_str:s,dy_str:s,dz_str:s?", 749 .params = "dx dy [dz]", 750 .help = "send mouse move events", 751 .cmd = hmp_mouse_move, 752 }, 753 754STEXI 755@item mouse_move @var{dx} @var{dy} [@var{dz}] 756@findex mouse_move 757Move the active mouse to the specified coordinates @var{dx} @var{dy} 758with optional scroll axis @var{dz}. 759ETEXI 760 761 { 762 .name = "mouse_button", 763 .args_type = "button_state:i", 764 .params = "state", 765 .help = "change mouse button state (1=L, 2=M, 4=R)", 766 .cmd = hmp_mouse_button, 767 }, 768 769STEXI 770@item mouse_button @var{val} 771@findex mouse_button 772Change the active mouse button state @var{val} (1=L, 2=M, 4=R). 773ETEXI 774 775 { 776 .name = "mouse_set", 777 .args_type = "index:i", 778 .params = "index", 779 .help = "set which mouse device receives events", 780 .cmd = hmp_mouse_set, 781 }, 782 783STEXI 784@item mouse_set @var{index} 785@findex mouse_set 786Set which mouse device receives events at given @var{index}, index 787can be obtained with 788@example 789info mice 790@end example 791ETEXI 792 793 { 794 .name = "wavcapture", 795 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?", 796 .params = "path [frequency [bits [channels]]]", 797 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)", 798 .cmd = hmp_wavcapture, 799 }, 800STEXI 801@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]] 802@findex wavcapture 803Capture audio into @var{filename}. Using sample rate @var{frequency} 804bits per sample @var{bits} and number of channels @var{channels}. 805 806Defaults: 807@itemize @minus 808@item Sample rate = 44100 Hz - CD quality 809@item Bits = 16 810@item Number of channels = 2 - Stereo 811@end itemize 812ETEXI 813 814 { 815 .name = "stopcapture", 816 .args_type = "n:i", 817 .params = "capture index", 818 .help = "stop capture", 819 .cmd = hmp_stopcapture, 820 }, 821STEXI 822@item stopcapture @var{index} 823@findex stopcapture 824Stop capture with a given @var{index}, index can be obtained with 825@example 826info capture 827@end example 828ETEXI 829 830 { 831 .name = "memsave", 832 .args_type = "val:l,size:i,filename:s", 833 .params = "addr size file", 834 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'", 835 .cmd = hmp_memsave, 836 }, 837 838STEXI 839@item memsave @var{addr} @var{size} @var{file} 840@findex memsave 841save to disk virtual memory dump starting at @var{addr} of size @var{size}. 842ETEXI 843 844 { 845 .name = "pmemsave", 846 .args_type = "val:l,size:i,filename:s", 847 .params = "addr size file", 848 .help = "save to disk physical memory dump starting at 'addr' of size 'size'", 849 .cmd = hmp_pmemsave, 850 }, 851 852STEXI 853@item pmemsave @var{addr} @var{size} @var{file} 854@findex pmemsave 855save to disk physical memory dump starting at @var{addr} of size @var{size}. 856ETEXI 857 858 { 859 .name = "boot_set", 860 .args_type = "bootdevice:s", 861 .params = "bootdevice", 862 .help = "define new values for the boot device list", 863 .cmd = hmp_boot_set, 864 }, 865 866STEXI 867@item boot_set @var{bootdevicelist} 868@findex boot_set 869Define new values for the boot device list. Those values will override 870the values specified on the command line through the @code{-boot} option. 871 872The values that can be specified here depend on the machine type, but are 873the same that can be specified in the @code{-boot} command line option. 874ETEXI 875 876 { 877 .name = "nmi", 878 .args_type = "", 879 .params = "", 880 .help = "inject an NMI", 881 .cmd = hmp_nmi, 882 }, 883STEXI 884@item nmi @var{cpu} 885@findex nmi 886Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64). 887 888ETEXI 889 890 { 891 .name = "ringbuf_write", 892 .args_type = "device:s,data:s", 893 .params = "device data", 894 .help = "Write to a ring buffer character device", 895 .cmd = hmp_ringbuf_write, 896 .command_completion = ringbuf_write_completion, 897 }, 898 899STEXI 900@item ringbuf_write @var{device} @var{data} 901@findex ringbuf_write 902Write @var{data} to ring buffer character device @var{device}. 903@var{data} must be a UTF-8 string. 904 905ETEXI 906 907 { 908 .name = "ringbuf_read", 909 .args_type = "device:s,size:i", 910 .params = "device size", 911 .help = "Read from a ring buffer character device", 912 .cmd = hmp_ringbuf_read, 913 .command_completion = ringbuf_write_completion, 914 }, 915 916STEXI 917@item ringbuf_read @var{device} 918@findex ringbuf_read 919Read and print up to @var{size} bytes from ring buffer character 920device @var{device}. 921Certain non-printable characters are printed \uXXXX, where XXXX is the 922character code in hexadecimal. Character \ is printed \\. 923Bug: can screw up when the buffer contains invalid UTF-8 sequences, 924NUL characters, after the ring buffer lost data, and when reading 925stops because the size limit is reached. 926 927ETEXI 928 929 { 930 .name = "migrate", 931 .args_type = "detach:-d,blk:-b,inc:-i,uri:s", 932 .params = "[-d] [-b] [-i] uri", 933 .help = "migrate to URI (using -d to not wait for completion)" 934 "\n\t\t\t -b for migration without shared storage with" 935 " full copy of disk\n\t\t\t -i for migration without " 936 "shared storage with incremental copy of disk " 937 "(base image shared between src and destination)", 938 .cmd = hmp_migrate, 939 }, 940 941 942STEXI 943@item migrate [-d] [-b] [-i] @var{uri} 944@findex migrate 945Migrate to @var{uri} (using -d to not wait for completion). 946 -b for migration with full copy of disk 947 -i for migration with incremental copy of disk (base image is shared) 948ETEXI 949 950 { 951 .name = "migrate_cancel", 952 .args_type = "", 953 .params = "", 954 .help = "cancel the current VM migration", 955 .cmd = hmp_migrate_cancel, 956 }, 957 958STEXI 959@item migrate_cancel 960@findex migrate_cancel 961Cancel the current VM migration. 962 963ETEXI 964 965 { 966 .name = "migrate_incoming", 967 .args_type = "uri:s", 968 .params = "uri", 969 .help = "Continue an incoming migration from an -incoming defer", 970 .cmd = hmp_migrate_incoming, 971 }, 972 973STEXI 974@item migrate_incoming @var{uri} 975@findex migrate_incoming 976Continue an incoming migration using the @var{uri} (that has the same syntax 977as the -incoming option). 978 979ETEXI 980 981 { 982 .name = "migrate_set_cache_size", 983 .args_type = "value:o", 984 .params = "value", 985 .help = "set cache size (in bytes) for XBZRLE migrations," 986 "the cache size will be rounded down to the nearest " 987 "power of 2.\n" 988 "The cache size affects the number of cache misses." 989 "In case of a high cache miss ratio you need to increase" 990 " the cache size", 991 .cmd = hmp_migrate_set_cache_size, 992 }, 993 994STEXI 995@item migrate_set_cache_size @var{value} 996@findex migrate_set_cache_size 997Set cache size to @var{value} (in bytes) for xbzrle migrations. 998ETEXI 999 1000 { 1001 .name = "migrate_set_speed", 1002 .args_type = "value:o", 1003 .params = "value", 1004 .help = "set maximum speed (in bytes) for migrations. " 1005 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T", 1006 .cmd = hmp_migrate_set_speed, 1007 }, 1008 1009STEXI 1010@item migrate_set_speed @var{value} 1011@findex migrate_set_speed 1012Set maximum speed to @var{value} (in bytes) for migrations. 1013ETEXI 1014 1015 { 1016 .name = "migrate_set_downtime", 1017 .args_type = "value:T", 1018 .params = "value", 1019 .help = "set maximum tolerated downtime (in seconds) for migrations", 1020 .cmd = hmp_migrate_set_downtime, 1021 }, 1022 1023STEXI 1024@item migrate_set_downtime @var{second} 1025@findex migrate_set_downtime 1026Set maximum tolerated downtime (in seconds) for migration. 1027ETEXI 1028 1029 { 1030 .name = "migrate_set_capability", 1031 .args_type = "capability:s,state:b", 1032 .params = "capability state", 1033 .help = "Enable/Disable the usage of a capability for migration", 1034 .cmd = hmp_migrate_set_capability, 1035 .command_completion = migrate_set_capability_completion, 1036 }, 1037 1038STEXI 1039@item migrate_set_capability @var{capability} @var{state} 1040@findex migrate_set_capability 1041Enable/Disable the usage of a capability @var{capability} for migration. 1042ETEXI 1043 1044 { 1045 .name = "migrate_set_parameter", 1046 .args_type = "parameter:s,value:s", 1047 .params = "parameter value", 1048 .help = "Set the parameter for migration", 1049 .cmd = hmp_migrate_set_parameter, 1050 .command_completion = migrate_set_parameter_completion, 1051 }, 1052 1053STEXI 1054@item migrate_set_parameter @var{parameter} @var{value} 1055@findex migrate_set_parameter 1056Set the parameter @var{parameter} for migration. 1057ETEXI 1058 1059 { 1060 .name = "migrate_start_postcopy", 1061 .args_type = "", 1062 .params = "", 1063 .help = "Followup to a migration command to switch the migration" 1064 " to postcopy mode. The postcopy-ram capability must " 1065 "be set before the original migration command.", 1066 .cmd = hmp_migrate_start_postcopy, 1067 }, 1068 1069STEXI 1070@item migrate_start_postcopy 1071@findex migrate_start_postcopy 1072Switch in-progress migration to postcopy mode. Ignored after the end of 1073migration (or once already in postcopy). 1074ETEXI 1075 1076 { 1077 .name = "x_colo_lost_heartbeat", 1078 .args_type = "", 1079 .params = "", 1080 .help = "Tell COLO that heartbeat is lost,\n\t\t\t" 1081 "a failover or takeover is needed.", 1082 .cmd = hmp_x_colo_lost_heartbeat, 1083 }, 1084 1085STEXI 1086@item x_colo_lost_heartbeat 1087@findex x_colo_lost_heartbeat 1088Tell COLO that heartbeat is lost, a failover or takeover is needed. 1089ETEXI 1090 1091 { 1092 .name = "client_migrate_info", 1093 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", 1094 .params = "protocol hostname port tls-port cert-subject", 1095 .help = "set migration information for remote display", 1096 .cmd = hmp_client_migrate_info, 1097 }, 1098 1099STEXI 1100@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject} 1101@findex client_migrate_info 1102Set migration information for remote display. This makes the server 1103ask the client to automatically reconnect using the new parameters 1104once migration finished successfully. Only implemented for SPICE. 1105ETEXI 1106 1107 { 1108 .name = "dump-guest-memory", 1109 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", 1110 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]", 1111 .help = "dump guest memory into file 'filename'.\n\t\t\t" 1112 "-p: do paging to get guest's memory mapping.\n\t\t\t" 1113 "-d: return immediately (do not wait for completion).\n\t\t\t" 1114 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" 1115 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" 1116 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" 1117 "begin: the starting physical address.\n\t\t\t" 1118 "length: the memory size, in bytes.", 1119 .cmd = hmp_dump_guest_memory, 1120 }, 1121 1122 1123STEXI 1124@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} 1125@item dump-guest-memory [-z|-l|-s] @var{filename} 1126@findex dump-guest-memory 1127Dump guest memory to @var{protocol}. The file can be processed with crash or 1128gdb. Without -z|-l|-s, the dump format is ELF. 1129 -p: do paging to get guest's memory mapping. 1130 -z: dump in kdump-compressed format, with zlib compression. 1131 -l: dump in kdump-compressed format, with lzo compression. 1132 -s: dump in kdump-compressed format, with snappy compression. 1133 filename: dump file name. 1134 begin: the starting physical address. It's optional, and should be 1135 specified together with length. 1136 length: the memory size, in bytes. It's optional, and should be specified 1137 together with begin. 1138ETEXI 1139 1140#if defined(TARGET_S390X) 1141 { 1142 .name = "dump-skeys", 1143 .args_type = "filename:F", 1144 .params = "", 1145 .help = "Save guest storage keys into file 'filename'.\n", 1146 .cmd = hmp_dump_skeys, 1147 }, 1148#endif 1149 1150STEXI 1151@item dump-skeys @var{filename} 1152@findex dump-skeys 1153Save guest storage keys to a file. 1154ETEXI 1155 1156#if defined(TARGET_S390X) 1157 { 1158 .name = "migration_mode", 1159 .args_type = "mode:i", 1160 .params = "mode", 1161 .help = "Enables or disables migration mode\n", 1162 .cmd = hmp_migrationmode, 1163 }, 1164#endif 1165 1166STEXI 1167@item migration_mode @var{mode} 1168@findex migration_mode 1169Enables or disables migration mode. 1170ETEXI 1171 1172 { 1173 .name = "snapshot_blkdev", 1174 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", 1175 .params = "[-n] device [new-image-file] [format]", 1176 .help = "initiates a live snapshot\n\t\t\t" 1177 "of device. If a new image file is specified, the\n\t\t\t" 1178 "new image file will become the new root image.\n\t\t\t" 1179 "If format is specified, the snapshot file will\n\t\t\t" 1180 "be created in that format.\n\t\t\t" 1181 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t" 1182 "to reuse the image found in new-image-file, instead of\n\t\t\t" 1183 "recreating it from scratch.", 1184 .cmd = hmp_snapshot_blkdev, 1185 }, 1186 1187STEXI 1188@item snapshot_blkdev 1189@findex snapshot_blkdev 1190Snapshot device, using snapshot file as target if provided 1191ETEXI 1192 1193 { 1194 .name = "snapshot_blkdev_internal", 1195 .args_type = "device:B,name:s", 1196 .params = "device name", 1197 .help = "take an internal snapshot of device.\n\t\t\t" 1198 "The format of the image used by device must\n\t\t\t" 1199 "support it, such as qcow2.\n\t\t\t", 1200 .cmd = hmp_snapshot_blkdev_internal, 1201 }, 1202 1203STEXI 1204@item snapshot_blkdev_internal 1205@findex snapshot_blkdev_internal 1206Take an internal snapshot on device if it support 1207ETEXI 1208 1209 { 1210 .name = "snapshot_delete_blkdev_internal", 1211 .args_type = "device:B,name:s,id:s?", 1212 .params = "device name [id]", 1213 .help = "delete an internal snapshot of device.\n\t\t\t" 1214 "If id is specified, qemu will try delete\n\t\t\t" 1215 "the snapshot matching both id and name.\n\t\t\t" 1216 "The format of the image used by device must\n\t\t\t" 1217 "support it, such as qcow2.\n\t\t\t", 1218 .cmd = hmp_snapshot_delete_blkdev_internal, 1219 }, 1220 1221STEXI 1222@item snapshot_delete_blkdev_internal 1223@findex snapshot_delete_blkdev_internal 1224Delete an internal snapshot on device if it support 1225ETEXI 1226 1227 { 1228 .name = "drive_mirror", 1229 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", 1230 .params = "[-n] [-f] device target [format]", 1231 .help = "initiates live storage\n\t\t\t" 1232 "migration for a device. The device's contents are\n\t\t\t" 1233 "copied to the new image file, including data that\n\t\t\t" 1234 "is written after the command is started.\n\t\t\t" 1235 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1236 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1237 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1238 "so that the result does not need a backing file.\n\t\t\t", 1239 .cmd = hmp_drive_mirror, 1240 }, 1241STEXI 1242@item drive_mirror 1243@findex drive_mirror 1244Start mirroring a block device's writes to a new destination, 1245using the specified target. 1246ETEXI 1247 1248 { 1249 .name = "drive_backup", 1250 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?", 1251 .params = "[-n] [-f] [-c] device target [format]", 1252 .help = "initiates a point-in-time\n\t\t\t" 1253 "copy for a device. The device's contents are\n\t\t\t" 1254 "copied to the new image file, excluding data that\n\t\t\t" 1255 "is written after the command is started.\n\t\t\t" 1256 "The -n flag requests QEMU to reuse the image found\n\t\t\t" 1257 "in new-image-file, instead of recreating it from scratch.\n\t\t\t" 1258 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" 1259 "so that the result does not need a backing file.\n\t\t\t" 1260 "The -c flag requests QEMU to compress backup data\n\t\t\t" 1261 "(if the target format supports it).\n\t\t\t", 1262 .cmd = hmp_drive_backup, 1263 }, 1264STEXI 1265@item drive_backup 1266@findex drive_backup 1267Start a point-in-time copy of a block device to a specificed target. 1268ETEXI 1269 1270 { 1271 .name = "drive_add", 1272 .args_type = "node:-n,pci_addr:s,opts:s", 1273 .params = "[-n] [[<domain>:]<bus>:]<slot>\n" 1274 "[file=file][,if=type][,bus=n]\n" 1275 "[,unit=m][,media=d][,index=i]\n" 1276 "[,cyls=c,heads=h,secs=s[,trans=t]]\n" 1277 "[,snapshot=on|off][,cache=on|off]\n" 1278 "[,readonly=on|off][,copy-on-read=on|off]", 1279 .help = "add drive to PCI storage controller", 1280 .cmd = hmp_drive_add, 1281 }, 1282 1283STEXI 1284@item drive_add 1285@findex drive_add 1286Add drive to PCI storage controller. 1287ETEXI 1288 1289 { 1290 .name = "pcie_aer_inject_error", 1291 .args_type = "advisory_non_fatal:-a,correctable:-c," 1292 "id:s,error_status:s," 1293 "header0:i?,header1:i?,header2:i?,header3:i?," 1294 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?", 1295 .params = "[-a] [-c] id " 1296 "<error_status> [<tlp header> [<tlp header prefix>]]", 1297 .help = "inject pcie aer error\n\t\t\t" 1298 " -a for advisory non fatal error\n\t\t\t" 1299 " -c for correctable error\n\t\t\t" 1300 "<id> = qdev device id\n\t\t\t" 1301 "<error_status> = error string or 32bit\n\t\t\t" 1302 "<tlb header> = 32bit x 4\n\t\t\t" 1303 "<tlb header prefix> = 32bit x 4", 1304 .cmd = hmp_pcie_aer_inject_error, 1305 }, 1306 1307STEXI 1308@item pcie_aer_inject_error 1309@findex pcie_aer_inject_error 1310Inject PCIe AER error 1311ETEXI 1312 1313 { 1314 .name = "host_net_add", 1315 .args_type = "device:s,opts:s?", 1316 .params = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]", 1317 .help = "add host VLAN client (deprecated, use netdev_add instead)", 1318 .cmd = hmp_host_net_add, 1319 .command_completion = host_net_add_completion, 1320 }, 1321 1322STEXI 1323@item host_net_add 1324@findex host_net_add 1325Add host VLAN client. Deprecated, please use @code{netdev_add} instead. 1326ETEXI 1327 1328 { 1329 .name = "host_net_remove", 1330 .args_type = "vlan_id:i,device:s", 1331 .params = "vlan_id name", 1332 .help = "remove host VLAN client (deprecated, use netdev_del instead)", 1333 .cmd = hmp_host_net_remove, 1334 .command_completion = host_net_remove_completion, 1335 }, 1336 1337STEXI 1338@item host_net_remove 1339@findex host_net_remove 1340Remove host VLAN client. Deprecated, please use @code{netdev_del} instead. 1341ETEXI 1342 1343 { 1344 .name = "netdev_add", 1345 .args_type = "netdev:O", 1346 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]", 1347 .help = "add host network device", 1348 .cmd = hmp_netdev_add, 1349 .command_completion = netdev_add_completion, 1350 }, 1351 1352STEXI 1353@item netdev_add 1354@findex netdev_add 1355Add host network device. 1356ETEXI 1357 1358 { 1359 .name = "netdev_del", 1360 .args_type = "id:s", 1361 .params = "id", 1362 .help = "remove host network device", 1363 .cmd = hmp_netdev_del, 1364 .command_completion = netdev_del_completion, 1365 }, 1366 1367STEXI 1368@item netdev_del 1369@findex netdev_del 1370Remove host network device. 1371ETEXI 1372 1373 { 1374 .name = "object_add", 1375 .args_type = "object:O", 1376 .params = "[qom-type=]type,id=str[,prop=value][,...]", 1377 .help = "create QOM object", 1378 .cmd = hmp_object_add, 1379 .command_completion = object_add_completion, 1380 }, 1381 1382STEXI 1383@item object_add 1384@findex object_add 1385Create QOM object. 1386ETEXI 1387 1388 { 1389 .name = "object_del", 1390 .args_type = "id:s", 1391 .params = "id", 1392 .help = "destroy QOM object", 1393 .cmd = hmp_object_del, 1394 .command_completion = object_del_completion, 1395 }, 1396 1397STEXI 1398@item object_del 1399@findex object_del 1400Destroy QOM object. 1401ETEXI 1402 1403#ifdef CONFIG_SLIRP 1404 { 1405 .name = "hostfwd_add", 1406 .args_type = "arg1:s,arg2:s?,arg3:s?", 1407 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport", 1408 .help = "redirect TCP or UDP connections from host to guest (requires -net user)", 1409 .cmd = hmp_hostfwd_add, 1410 }, 1411#endif 1412STEXI 1413@item hostfwd_add 1414@findex hostfwd_add 1415Redirect TCP or UDP connections from host to guest (requires -net user). 1416ETEXI 1417 1418#ifdef CONFIG_SLIRP 1419 { 1420 .name = "hostfwd_remove", 1421 .args_type = "arg1:s,arg2:s?,arg3:s?", 1422 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport", 1423 .help = "remove host-to-guest TCP or UDP redirection", 1424 .cmd = hmp_hostfwd_remove, 1425 }, 1426 1427#endif 1428STEXI 1429@item hostfwd_remove 1430@findex hostfwd_remove 1431Remove host-to-guest TCP or UDP redirection. 1432ETEXI 1433 1434 { 1435 .name = "balloon", 1436 .args_type = "value:M", 1437 .params = "target", 1438 .help = "request VM to change its memory allocation (in MB)", 1439 .cmd = hmp_balloon, 1440 }, 1441 1442STEXI 1443@item balloon @var{value} 1444@findex balloon 1445Request VM to change its memory allocation to @var{value} (in MB). 1446ETEXI 1447 1448 { 1449 .name = "set_link", 1450 .args_type = "name:s,up:b", 1451 .params = "name on|off", 1452 .help = "change the link status of a network adapter", 1453 .cmd = hmp_set_link, 1454 .command_completion = set_link_completion, 1455 }, 1456 1457STEXI 1458@item set_link @var{name} [on|off] 1459@findex set_link 1460Switch link @var{name} on (i.e. up) or off (i.e. down). 1461ETEXI 1462 1463 { 1464 .name = "watchdog_action", 1465 .args_type = "action:s", 1466 .params = "[reset|shutdown|poweroff|pause|debug|none]", 1467 .help = "change watchdog action", 1468 .cmd = hmp_watchdog_action, 1469 .command_completion = watchdog_action_completion, 1470 }, 1471 1472STEXI 1473@item watchdog_action 1474@findex watchdog_action 1475Change watchdog action. 1476ETEXI 1477 1478 { 1479 .name = "acl_show", 1480 .args_type = "aclname:s", 1481 .params = "aclname", 1482 .help = "list rules in the access control list", 1483 .cmd = hmp_acl_show, 1484 }, 1485 1486STEXI 1487@item acl_show @var{aclname} 1488@findex acl_show 1489List all the matching rules in the access control list, and the default 1490policy. There are currently two named access control lists, 1491@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client 1492certificate distinguished name, and SASL username respectively. 1493ETEXI 1494 1495 { 1496 .name = "acl_policy", 1497 .args_type = "aclname:s,policy:s", 1498 .params = "aclname allow|deny", 1499 .help = "set default access control list policy", 1500 .cmd = hmp_acl_policy, 1501 }, 1502 1503STEXI 1504@item acl_policy @var{aclname} @code{allow|deny} 1505@findex acl_policy 1506Set the default access control list policy, used in the event that 1507none of the explicit rules match. The default policy at startup is 1508always @code{deny}. 1509ETEXI 1510 1511 { 1512 .name = "acl_add", 1513 .args_type = "aclname:s,match:s,policy:s,index:i?", 1514 .params = "aclname match allow|deny [index]", 1515 .help = "add a match rule to the access control list", 1516 .cmd = hmp_acl_add, 1517 }, 1518 1519STEXI 1520@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}] 1521@findex acl_add 1522Add a match rule to the access control list, allowing or denying access. 1523The match will normally be an exact username or x509 distinguished name, 1524but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to 1525allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will 1526normally be appended to the end of the ACL, but can be inserted 1527earlier in the list if the optional @var{index} parameter is supplied. 1528ETEXI 1529 1530 { 1531 .name = "acl_remove", 1532 .args_type = "aclname:s,match:s", 1533 .params = "aclname match", 1534 .help = "remove a match rule from the access control list", 1535 .cmd = hmp_acl_remove, 1536 }, 1537 1538STEXI 1539@item acl_remove @var{aclname} @var{match} 1540@findex acl_remove 1541Remove the specified match rule from the access control list. 1542ETEXI 1543 1544 { 1545 .name = "acl_reset", 1546 .args_type = "aclname:s", 1547 .params = "aclname", 1548 .help = "reset the access control list", 1549 .cmd = hmp_acl_reset, 1550 }, 1551 1552STEXI 1553@item acl_reset @var{aclname} 1554@findex acl_reset 1555Remove all matches from the access control list, and set the default 1556policy back to @code{deny}. 1557ETEXI 1558 1559 { 1560 .name = "nbd_server_start", 1561 .args_type = "all:-a,writable:-w,uri:s", 1562 .params = "nbd_server_start [-a] [-w] host:port", 1563 .help = "serve block devices on the given host and port", 1564 .cmd = hmp_nbd_server_start, 1565 }, 1566STEXI 1567@item nbd_server_start @var{host}:@var{port} 1568@findex nbd_server_start 1569Start an NBD server on the given host and/or port. If the @option{-a} 1570option is included, all of the virtual machine's block devices that 1571have an inserted media on them are automatically exported; in this case, 1572the @option{-w} option makes the devices writable too. 1573ETEXI 1574 1575 { 1576 .name = "nbd_server_add", 1577 .args_type = "writable:-w,device:B", 1578 .params = "nbd_server_add [-w] device", 1579 .help = "export a block device via NBD", 1580 .cmd = hmp_nbd_server_add, 1581 }, 1582STEXI 1583@item nbd_server_add @var{device} 1584@findex nbd_server_add 1585Export a block device through QEMU's NBD server, which must be started 1586beforehand with @command{nbd_server_start}. The @option{-w} option makes the 1587exported device writable too. 1588ETEXI 1589 1590 { 1591 .name = "nbd_server_stop", 1592 .args_type = "", 1593 .params = "nbd_server_stop", 1594 .help = "stop serving block devices using the NBD protocol", 1595 .cmd = hmp_nbd_server_stop, 1596 }, 1597STEXI 1598@item nbd_server_stop 1599@findex nbd_server_stop 1600Stop the QEMU embedded NBD server. 1601ETEXI 1602 1603 1604#if defined(TARGET_I386) 1605 1606 { 1607 .name = "mce", 1608 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l", 1609 .params = "[-b] cpu bank status mcgstatus addr misc", 1610 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]", 1611 .cmd = hmp_mce, 1612 }, 1613 1614#endif 1615STEXI 1616@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} 1617@findex mce (x86) 1618Inject an MCE on the given CPU (x86 only). 1619ETEXI 1620 1621 { 1622 .name = "getfd", 1623 .args_type = "fdname:s", 1624 .params = "getfd name", 1625 .help = "receive a file descriptor via SCM rights and assign it a name", 1626 .cmd = hmp_getfd, 1627 }, 1628 1629STEXI 1630@item getfd @var{fdname} 1631@findex getfd 1632If a file descriptor is passed alongside this command using the SCM_RIGHTS 1633mechanism on unix sockets, it is stored using the name @var{fdname} for 1634later use by other monitor commands. 1635ETEXI 1636 1637 { 1638 .name = "closefd", 1639 .args_type = "fdname:s", 1640 .params = "closefd name", 1641 .help = "close a file descriptor previously passed via SCM rights", 1642 .cmd = hmp_closefd, 1643 }, 1644 1645STEXI 1646@item closefd @var{fdname} 1647@findex closefd 1648Close the file descriptor previously assigned to @var{fdname} using the 1649@code{getfd} command. This is only needed if the file descriptor was never 1650used by another monitor command. 1651ETEXI 1652 1653 { 1654 .name = "block_passwd", 1655 .args_type = "device:B,password:s", 1656 .params = "block_passwd device password", 1657 .help = "set the password of encrypted block devices", 1658 .cmd = hmp_block_passwd, 1659 }, 1660 1661STEXI 1662@item block_passwd @var{device} @var{password} 1663@findex block_passwd 1664Set the encrypted device @var{device} password to @var{password} 1665 1666This command is now obsolete and will always return an error since 2.10 1667ETEXI 1668 1669 { 1670 .name = "block_set_io_throttle", 1671 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", 1672 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr", 1673 .help = "change I/O throttle limits for a block drive", 1674 .cmd = hmp_block_set_io_throttle, 1675 }, 1676 1677STEXI 1678@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr} 1679@findex block_set_io_throttle 1680Change 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} 1681ETEXI 1682 1683 { 1684 .name = "set_password", 1685 .args_type = "protocol:s,password:s,connected:s?", 1686 .params = "protocol password action-if-connected", 1687 .help = "set spice/vnc password", 1688 .cmd = hmp_set_password, 1689 }, 1690 1691STEXI 1692@item set_password [ vnc | spice ] password [ action-if-connected ] 1693@findex set_password 1694Change spice/vnc password. Use zero to make the password stay valid 1695forever. @var{action-if-connected} specifies what should happen in 1696case a connection is established: @var{fail} makes the password change 1697fail. @var{disconnect} changes the password and disconnects the 1698client. @var{keep} changes the password and keeps the connection up. 1699@var{keep} is the default. 1700ETEXI 1701 1702 { 1703 .name = "expire_password", 1704 .args_type = "protocol:s,time:s", 1705 .params = "protocol time", 1706 .help = "set spice/vnc password expire-time", 1707 .cmd = hmp_expire_password, 1708 }, 1709 1710STEXI 1711@item expire_password [ vnc | spice ] expire-time 1712@findex expire_password 1713Specify when a password for spice/vnc becomes 1714invalid. @var{expire-time} accepts: 1715 1716@table @var 1717@item now 1718Invalidate password instantly. 1719 1720@item never 1721Password stays valid forever. 1722 1723@item +nsec 1724Password stays valid for @var{nsec} seconds starting now. 1725 1726@item nsec 1727Password is invalidated at the given time. @var{nsec} are the seconds 1728passed since 1970, i.e. unix epoch. 1729 1730@end table 1731ETEXI 1732 1733 { 1734 .name = "chardev-add", 1735 .args_type = "args:s", 1736 .params = "args", 1737 .help = "add chardev", 1738 .cmd = hmp_chardev_add, 1739 .command_completion = chardev_add_completion, 1740 }, 1741 1742STEXI 1743@item chardev-add args 1744@findex chardev-add 1745chardev-add accepts the same parameters as the -chardev command line switch. 1746 1747ETEXI 1748 1749 { 1750 .name = "chardev-change", 1751 .args_type = "id:s,args:s", 1752 .params = "id args", 1753 .help = "change chardev", 1754 .cmd = hmp_chardev_change, 1755 }, 1756 1757STEXI 1758@item chardev-change args 1759@findex chardev-change 1760chardev-change accepts existing chardev @var{id} and then the same arguments 1761as the -chardev command line switch (except for "id"). 1762 1763ETEXI 1764 1765 { 1766 .name = "chardev-remove", 1767 .args_type = "id:s", 1768 .params = "id", 1769 .help = "remove chardev", 1770 .cmd = hmp_chardev_remove, 1771 .command_completion = chardev_remove_completion, 1772 }, 1773 1774STEXI 1775@item chardev-remove id 1776@findex chardev-remove 1777Removes the chardev @var{id}. 1778 1779ETEXI 1780 1781 { 1782 .name = "chardev-send-break", 1783 .args_type = "id:s", 1784 .params = "id", 1785 .help = "send a break on chardev", 1786 .cmd = hmp_chardev_send_break, 1787 .command_completion = chardev_remove_completion, 1788 }, 1789 1790STEXI 1791@item chardev-send-break id 1792@findex chardev-send-break 1793Send a break on the chardev @var{id}. 1794 1795ETEXI 1796 1797 { 1798 .name = "qemu-io", 1799 .args_type = "device:B,command:s", 1800 .params = "[device] \"[command]\"", 1801 .help = "run a qemu-io command on a block device", 1802 .cmd = hmp_qemu_io, 1803 }, 1804 1805STEXI 1806@item qemu-io @var{device} @var{command} 1807@findex qemu-io 1808Executes a qemu-io command on the given block device. 1809 1810ETEXI 1811 1812 { 1813 .name = "cpu-add", 1814 .args_type = "id:i", 1815 .params = "id", 1816 .help = "add cpu", 1817 .cmd = hmp_cpu_add, 1818 }, 1819 1820STEXI 1821@item cpu-add @var{id} 1822@findex cpu-add 1823Add CPU with id @var{id} 1824ETEXI 1825 1826 { 1827 .name = "qom-list", 1828 .args_type = "path:s?", 1829 .params = "path", 1830 .help = "list QOM properties", 1831 .cmd = hmp_qom_list, 1832 }, 1833 1834STEXI 1835@item qom-list [@var{path}] 1836Print QOM properties of object at location @var{path} 1837ETEXI 1838 1839 { 1840 .name = "qom-set", 1841 .args_type = "path:s,property:s,value:s", 1842 .params = "path property value", 1843 .help = "set QOM property", 1844 .cmd = hmp_qom_set, 1845 }, 1846 1847STEXI 1848@item qom-set @var{path} @var{property} @var{value} 1849Set QOM property @var{property} of object at location @var{path} to value @var{value} 1850ETEXI 1851 1852 { 1853 .name = "info", 1854 .args_type = "item:s?", 1855 .params = "[subcommand]", 1856 .help = "show various information about the system state", 1857 .cmd = hmp_info_help, 1858 .sub_table = info_cmds, 1859 }, 1860 1861STEXI 1862@end table 1863ETEXI 1864