libqos: Use explicit QTestState for ahci operations
[qemu.git] / hmp-commands.hx
blob15620c94d3fce89b10b3ceed15b401ebfff8cbf1
1 HXCOMM Use DEFHEADING() to define headings in both help text and texi
2 HXCOMM Text between STEXI and ETEXI are copied to texi version and
3 HXCOMM discarded from C version
4 HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5 HXCOMM monitor commands
6 HXCOMM HXCOMM can be used for comments, discarded from both texi and C
8 STEXI
9 @table @option
10 ETEXI
13 .name = "help|?",
14 .args_type = "name:S?",
15 .params = "[cmd]",
16 .help = "show the help",
17 .cmd = do_help_cmd,
20 STEXI
21 @item help or ? [@var{cmd}]
22 @findex help
23 Show the help for all commands or just for command @var{cmd}.
24 ETEXI
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,
34 STEXI
35 @item commit
36 @findex commit
37 Commit changes to the disk images (if -snapshot is used) or backing files.
38 If the backing file is smaller than the snapshot, then the backing file will be
39 resized to be the same size as the snapshot. If the snapshot is smaller than
40 the backing file, the backing file will not be truncated. If you want the
41 backing file to match the size of the smaller snapshot, you can safely truncate
42 it yourself once the commit operation successfully completes.
43 ETEXI
46 .name = "q|quit",
47 .args_type = "",
48 .params = "",
49 .help = "quit the emulator",
50 .cmd = hmp_quit,
53 STEXI
54 @item q or quit
55 @findex quit
56 Quit the emulator.
57 ETEXI
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,
67 STEXI
68 @item block_resize
69 @findex block_resize
70 Resize a block image while a guest is running. Usually requires guest
71 action to see the updated size. Resize to a lower size is supported,
72 but should be used with extreme caution. Note that this command only
73 resizes image files, it can not resize block devices like LVM volumes.
74 ETEXI
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,
84 STEXI
85 @item block_stream
86 @findex block_stream
87 Copy data from a backing file into a block device.
88 ETEXI
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,
98 STEXI
99 @item block_job_set_speed
100 @findex block_job_set_speed
101 Set maximum speed for a background block operation.
102 ETEXI
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,
113 STEXI
114 @item block_job_cancel
115 @findex block_job_cancel
116 Stop an active background block operation (streaming, mirroring).
117 ETEXI
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,
127 STEXI
128 @item block_job_complete
129 @findex block_job_complete
130 Manually trigger completion of an active background block operation.
131 For mirroring, this will switch the device to the destination path.
132 ETEXI
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,
142 STEXI
143 @item block_job_pause
144 @findex block_job_pause
145 Pause an active block streaming operation.
146 ETEXI
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,
156 STEXI
157 @item block_job_resume
158 @findex block_job_resume
159 Resume a paused block streaming operation.
160 ETEXI
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,
170 STEXI
171 @item eject [-f] @var{device}
172 @findex eject
173 Eject a removable medium (use -f to force it).
174 ETEXI
177 .name = "drive_del",
178 .args_type = "id:B",
179 .params = "device",
180 .help = "remove host block device",
181 .cmd = hmp_drive_del,
184 STEXI
185 @item drive_del @var{device}
186 @findex drive_del
187 Remove host block device. The result is that guest generated IO is no longer
188 submitted against the host device underlying the disk. Once a drive has
189 been deleted, the QEMU Block layer returns -EIO which results in IO
190 errors in the guest for applications that are reading/writing to the device.
191 These errors are always reported to the guest, regardless of the drive's error
192 actions (drive options rerror, werror).
193 ETEXI
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,
203 STEXI
204 @item change @var{device} @var{setting}
205 @findex change
206 Change the configuration of a device.
208 @table @option
209 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
210 Change the medium for a removable disk device to point to @var{filename}. eg
212 @example
213 (qemu) change ide1-cd0 /path/to/some.iso
214 @end example
216 @var{format} is optional.
218 @var{read-only-mode} may be used to change the read-only status of the device.
219 It accepts the following values:
221 @table @var
222 @item retain
223 Retains the current status; this is the default.
225 @item read-only
226 Makes the device read-only.
228 @item read-write
229 Makes the device writable.
230 @end table
232 @item change vnc @var{display},@var{options}
233 Change the configuration of the VNC server. The valid syntax for @var{display}
234 and @var{options} are described at @ref{sec_invocation}. eg
236 @example
237 (qemu) change vnc localhost:1
238 @end example
240 @item change vnc password [@var{password}]
242 Change the password associated with the VNC server. If the new password is not
243 supplied, the monitor will prompt for it to be entered. VNC passwords are only
244 significant up to 8 letters. eg
246 @example
247 (qemu) change vnc password
248 Password: ********
249 @end example
251 @end table
252 ETEXI
255 .name = "screendump",
256 .args_type = "filename:F",
257 .params = "filename",
258 .help = "save screen into PPM image 'filename'",
259 .cmd = hmp_screendump,
262 STEXI
263 @item screendump @var{filename}
264 @findex screendump
265 Save screen into PPM image @var{filename}.
266 ETEXI
269 .name = "logfile",
270 .args_type = "filename:F",
271 .params = "filename",
272 .help = "output logs to 'filename'",
273 .cmd = hmp_logfile,
276 STEXI
277 @item logfile @var{filename}
278 @findex logfile
279 Output logs to @var{filename}.
280 ETEXI
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,
292 STEXI
293 @item trace-event
294 @findex trace-event
295 changes status of a trace event
296 ETEXI
298 #if defined(CONFIG_TRACE_SIMPLE)
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,
307 STEXI
308 @item trace-file on|off|flush
309 @findex trace-file
310 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
311 ETEXI
312 #endif
315 .name = "log",
316 .args_type = "items:s",
317 .params = "item1[,...]",
318 .help = "activate logging of the specified items",
319 .cmd = hmp_log,
322 STEXI
323 @item log @var{item1}[,...]
324 @findex log
325 Activate logging of the specified items.
326 ETEXI
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,
336 STEXI
337 @item savevm [@var{tag}|@var{id}]
338 @findex savevm
339 Create a snapshot of the whole virtual machine. If @var{tag} is
340 provided, it is used as human readable identifier. If there is already
341 a snapshot with the same tag or ID, it is replaced. More info at
342 @ref{vm_snapshots}.
343 ETEXI
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,
354 STEXI
355 @item loadvm @var{tag}|@var{id}
356 @findex loadvm
357 Set the whole virtual machine to the snapshot identified by the tag
358 @var{tag} or the unique snapshot ID @var{id}.
359 ETEXI
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,
370 STEXI
371 @item delvm @var{tag}|@var{id}
372 @findex delvm
373 Delete the snapshot identified by @var{tag} or @var{id}.
374 ETEXI
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,
384 STEXI
385 @item singlestep [off]
386 @findex singlestep
387 Run the emulation in single step mode.
388 If called with option off, the emulation returns to normal mode.
389 ETEXI
392 .name = "stop",
393 .args_type = "",
394 .params = "",
395 .help = "stop emulation",
396 .cmd = hmp_stop,
399 STEXI
400 @item stop
401 @findex stop
402 Stop emulation.
403 ETEXI
406 .name = "c|cont",
407 .args_type = "",
408 .params = "",
409 .help = "resume emulation",
410 .cmd = hmp_cont,
413 STEXI
414 @item c or cont
415 @findex cont
416 Resume emulation.
417 ETEXI
420 .name = "system_wakeup",
421 .args_type = "",
422 .params = "",
423 .help = "wakeup guest from suspend",
424 .cmd = hmp_system_wakeup,
427 STEXI
428 @item system_wakeup
429 @findex system_wakeup
430 Wakeup guest from suspend.
431 ETEXI
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,
441 STEXI
442 @item gdbserver [@var{port}]
443 @findex gdbserver
444 Start gdbserver session (default @var{port}=1234)
445 ETEXI
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,
455 STEXI
456 @item x/fmt @var{addr}
457 @findex x
458 Virtual memory dump starting at @var{addr}.
459 ETEXI
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,
469 STEXI
470 @item xp /@var{fmt} @var{addr}
471 @findex xp
472 Physical memory dump starting at @var{addr}.
474 @var{fmt} is a format which tells the command how to format the
475 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
477 @table @var
478 @item count
479 is the number of items to be dumped.
481 @item format
482 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
483 c (char) or i (asm instruction).
485 @item size
486 can 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
488 respectively select 16 or 32 bit code instruction size.
490 @end table
492 Examples:
493 @itemize
494 @item
495 Dump 10 instructions at the current instruction pointer:
496 @example
497 (qemu) x/10i $eip
498 0x90107063: ret
499 0x90107064: sti
500 0x90107065: lea 0x0(%esi,1),%esi
501 0x90107069: lea 0x0(%edi,1),%edi
502 0x90107070: ret
503 0x90107071: jmp 0x90107080
504 0x90107073: nop
505 0x90107074: nop
506 0x90107075: nop
507 0x90107076: nop
508 @end example
510 @item
511 Dump 80 16 bit values at the start of the video memory.
512 @smallexample
513 (qemu) xp/80hx 0xb8000
514 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
515 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
516 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
517 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
518 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
519 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
520 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
521 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
522 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
523 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
524 @end smallexample
525 @end itemize
526 ETEXI
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,
536 STEXI
537 @item gpa2hva @var{addr}
538 @findex gpa2hva
539 Print the host virtual address at which the guest's physical address @var{addr}
540 is mapped.
541 ETEXI
543 #ifdef CONFIG_LINUX
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,
551 #endif
553 STEXI
554 @item gpa2hpa @var{addr}
555 @findex gpa2hpa
556 Print the host physical address at which the guest's physical address @var{addr}
557 is mapped.
558 ETEXI
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,
568 STEXI
569 @item p or print/@var{fmt} @var{expr}
570 @findex print
571 Print expression value. Only the @var{format} part of @var{fmt} is
572 used.
573 ETEXI
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,
583 STEXI
584 @item i/@var{fmt} @var{addr} [.@var{index}]
585 @findex i
586 Read I/O port.
587 ETEXI
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,
597 STEXI
598 @item o/@var{fmt} @var{addr} @var{val}
599 @findex o
600 Write to I/O port.
601 ETEXI
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,
612 STEXI
613 @item sendkey @var{keys}
614 @findex sendkey
615 Send @var{keys} to the guest. @var{keys} could be the name of the
616 key or the raw value in hexadecimal format. Use @code{-} to press
617 several keys simultaneously. Example:
618 @example
619 sendkey ctrl-alt-f1
620 @end example
622 This command is useful to send keys that your graphical user interface
623 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
624 ETEXI
627 .name = "system_reset",
628 .args_type = "",
629 .params = "",
630 .help = "reset the system",
631 .cmd = hmp_system_reset,
634 STEXI
635 @item system_reset
636 @findex system_reset
637 Reset the system.
638 ETEXI
641 .name = "system_powerdown",
642 .args_type = "",
643 .params = "",
644 .help = "send system power down event",
645 .cmd = hmp_system_powerdown,
648 STEXI
649 @item system_powerdown
650 @findex system_powerdown
651 Power down the system (if supported).
652 ETEXI
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,
662 STEXI
663 @item sum @var{addr} @var{size}
664 @findex sum
665 Compute the checksum of a memory region.
666 ETEXI
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,
677 STEXI
678 @item device_add @var{config}
679 @findex device_add
680 Add device.
681 ETEXI
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,
692 STEXI
693 @item device_del @var{id}
694 @findex device_del
695 Remove device @var{id}. @var{id} may be a short ID
696 or a QOM object path.
697 ETEXI
700 .name = "cpu",
701 .args_type = "index:i",
702 .params = "index",
703 .help = "set the default CPU",
704 .cmd = hmp_cpu,
707 STEXI
708 @item cpu @var{index}
709 @findex cpu
710 Set the default CPU.
711 ETEXI
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,
721 STEXI
722 @item mouse_move @var{dx} @var{dy} [@var{dz}]
723 @findex mouse_move
724 Move the active mouse to the specified coordinates @var{dx} @var{dy}
725 with optional scroll axis @var{dz}.
726 ETEXI
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,
736 STEXI
737 @item mouse_button @var{val}
738 @findex mouse_button
739 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
740 ETEXI
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,
750 STEXI
751 @item mouse_set @var{index}
752 @findex mouse_set
753 Set which mouse device receives events at given @var{index}, index
754 can be obtained with
755 @example
756 info mice
757 @end example
758 ETEXI
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,
767 STEXI
768 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
769 @findex wavcapture
770 Capture audio into @var{filename}. Using sample rate @var{frequency}
771 bits per sample @var{bits} and number of channels @var{channels}.
773 Defaults:
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
779 ETEXI
782 .name = "stopcapture",
783 .args_type = "n:i",
784 .params = "capture index",
785 .help = "stop capture",
786 .cmd = hmp_stopcapture,
788 STEXI
789 @item stopcapture @var{index}
790 @findex stopcapture
791 Stop capture with a given @var{index}, index can be obtained with
792 @example
793 info capture
794 @end example
795 ETEXI
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,
805 STEXI
806 @item memsave @var{addr} @var{size} @var{file}
807 @findex memsave
808 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
809 ETEXI
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,
819 STEXI
820 @item pmemsave @var{addr} @var{size} @var{file}
821 @findex pmemsave
822 save to disk physical memory dump starting at @var{addr} of size @var{size}.
823 ETEXI
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,
833 STEXI
834 @item boot_set @var{bootdevicelist}
835 @findex boot_set
836 Define new values for the boot device list. Those values will override
837 the values specified on the command line through the @code{-boot} option.
839 The values that can be specified here depend on the machine type, but are
840 the same that can be specified in the @code{-boot} command line option.
841 ETEXI
844 .name = "nmi",
845 .args_type = "",
846 .params = "",
847 .help = "inject an NMI",
848 .cmd = hmp_nmi,
850 STEXI
851 @item nmi @var{cpu}
852 @findex nmi
853 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
855 ETEXI
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,
866 STEXI
867 @item ringbuf_write @var{device} @var{data}
868 @findex ringbuf_write
869 Write @var{data} to ring buffer character device @var{device}.
870 @var{data} must be a UTF-8 string.
872 ETEXI
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,
883 STEXI
884 @item ringbuf_read @var{device}
885 @findex ringbuf_read
886 Read and print up to @var{size} bytes from ring buffer character
887 device @var{device}.
888 Certain non-printable characters are printed \uXXXX, where XXXX is the
889 character code in hexadecimal. Character \ is printed \\.
890 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
891 NUL characters, after the ring buffer lost data, and when reading
892 stops because the size limit is reached.
894 ETEXI
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,
909 STEXI
910 @item migrate [-d] [-b] [-i] @var{uri}
911 @findex migrate
912 Migrate 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)
915 ETEXI
918 .name = "migrate_cancel",
919 .args_type = "",
920 .params = "",
921 .help = "cancel the current VM migration",
922 .cmd = hmp_migrate_cancel,
925 STEXI
926 @item migrate_cancel
927 @findex migrate_cancel
928 Cancel the current VM migration.
929 ETEXI
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,
938 STEXI
939 @item migrate_continue @var{state}
940 @findex migrate_continue
941 Continue migration from the paused state @var{state}
942 ETEXI
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,
952 STEXI
953 @item migrate_incoming @var{uri}
954 @findex migrate_incoming
955 Continue an incoming migration using the @var{uri} (that has the same syntax
956 as the -incoming option).
958 ETEXI
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,
973 STEXI
974 @item migrate_set_cache_size @var{value}
975 @findex migrate_set_cache_size
976 Set cache size to @var{value} (in bytes) for xbzrle migrations.
977 ETEXI
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,
988 STEXI
989 @item migrate_set_speed @var{value}
990 @findex migrate_set_speed
991 Set maximum speed to @var{value} (in bytes) for migrations.
992 ETEXI
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,
1002 STEXI
1003 @item migrate_set_downtime @var{second}
1004 @findex migrate_set_downtime
1005 Set maximum tolerated downtime (in seconds) for migration.
1006 ETEXI
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,
1017 STEXI
1018 @item migrate_set_capability @var{capability} @var{state}
1019 @findex migrate_set_capability
1020 Enable/Disable the usage of a capability @var{capability} for migration.
1021 ETEXI
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,
1032 STEXI
1033 @item migrate_set_parameter @var{parameter} @var{value}
1034 @findex migrate_set_parameter
1035 Set the parameter @var{parameter} for migration.
1036 ETEXI
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 before the original migration command.",
1045 .cmd = hmp_migrate_start_postcopy,
1048 STEXI
1049 @item migrate_start_postcopy
1050 @findex migrate_start_postcopy
1051 Switch in-progress migration to postcopy mode. Ignored after the end of
1052 migration (or once already in postcopy).
1053 ETEXI
1056 .name = "x_colo_lost_heartbeat",
1057 .args_type = "",
1058 .params = "",
1059 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1060 "a failover or takeover is needed.",
1061 .cmd = hmp_x_colo_lost_heartbeat,
1064 STEXI
1065 @item x_colo_lost_heartbeat
1066 @findex x_colo_lost_heartbeat
1067 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1068 ETEXI
1071 .name = "client_migrate_info",
1072 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1073 .params = "protocol hostname port tls-port cert-subject",
1074 .help = "set migration information for remote display",
1075 .cmd = hmp_client_migrate_info,
1078 STEXI
1079 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1080 @findex client_migrate_info
1081 Set migration information for remote display. This makes the server
1082 ask the client to automatically reconnect using the new parameters
1083 once migration finished successfully. Only implemented for SPICE.
1084 ETEXI
1087 .name = "dump-guest-memory",
1088 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?",
1089 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]",
1090 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1091 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1092 "-d: return immediately (do not wait for completion).\n\t\t\t"
1093 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1094 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1095 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1096 "begin: the starting physical address.\n\t\t\t"
1097 "length: the memory size, in bytes.",
1098 .cmd = hmp_dump_guest_memory,
1102 STEXI
1103 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1104 @item dump-guest-memory [-z|-l|-s] @var{filename}
1105 @findex dump-guest-memory
1106 Dump guest memory to @var{protocol}. The file can be processed with crash or
1107 gdb. Without -z|-l|-s, the dump format is ELF.
1108 -p: do paging to get guest's memory mapping.
1109 -z: dump in kdump-compressed format, with zlib compression.
1110 -l: dump in kdump-compressed format, with lzo compression.
1111 -s: dump in kdump-compressed format, with snappy compression.
1112 filename: dump file name.
1113 begin: the starting physical address. It's optional, and should be
1114 specified together with length.
1115 length: the memory size, in bytes. It's optional, and should be specified
1116 together with begin.
1117 ETEXI
1119 #if defined(TARGET_S390X)
1121 .name = "dump-skeys",
1122 .args_type = "filename:F",
1123 .params = "",
1124 .help = "Save guest storage keys into file 'filename'.\n",
1125 .cmd = hmp_dump_skeys,
1127 #endif
1129 STEXI
1130 @item dump-skeys @var{filename}
1131 @findex dump-skeys
1132 Save guest storage keys to a file.
1133 ETEXI
1135 #if defined(TARGET_S390X)
1137 .name = "migration_mode",
1138 .args_type = "mode:i",
1139 .params = "mode",
1140 .help = "Enables or disables migration mode\n",
1141 .cmd = hmp_migrationmode,
1143 #endif
1145 STEXI
1146 @item migration_mode @var{mode}
1147 @findex migration_mode
1148 Enables or disables migration mode.
1149 ETEXI
1152 .name = "snapshot_blkdev",
1153 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1154 .params = "[-n] device [new-image-file] [format]",
1155 .help = "initiates a live snapshot\n\t\t\t"
1156 "of device. If a new image file is specified, the\n\t\t\t"
1157 "new image file will become the new root image.\n\t\t\t"
1158 "If format is specified, the snapshot file will\n\t\t\t"
1159 "be created in that format.\n\t\t\t"
1160 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1161 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1162 "recreating it from scratch.",
1163 .cmd = hmp_snapshot_blkdev,
1166 STEXI
1167 @item snapshot_blkdev
1168 @findex snapshot_blkdev
1169 Snapshot device, using snapshot file as target if provided
1170 ETEXI
1173 .name = "snapshot_blkdev_internal",
1174 .args_type = "device:B,name:s",
1175 .params = "device name",
1176 .help = "take an internal snapshot of device.\n\t\t\t"
1177 "The format of the image used by device must\n\t\t\t"
1178 "support it, such as qcow2.\n\t\t\t",
1179 .cmd = hmp_snapshot_blkdev_internal,
1182 STEXI
1183 @item snapshot_blkdev_internal
1184 @findex snapshot_blkdev_internal
1185 Take an internal snapshot on device if it support
1186 ETEXI
1189 .name = "snapshot_delete_blkdev_internal",
1190 .args_type = "device:B,name:s,id:s?",
1191 .params = "device name [id]",
1192 .help = "delete an internal snapshot of device.\n\t\t\t"
1193 "If id is specified, qemu will try delete\n\t\t\t"
1194 "the snapshot matching both id and name.\n\t\t\t"
1195 "The format of the image used by device must\n\t\t\t"
1196 "support it, such as qcow2.\n\t\t\t",
1197 .cmd = hmp_snapshot_delete_blkdev_internal,
1200 STEXI
1201 @item snapshot_delete_blkdev_internal
1202 @findex snapshot_delete_blkdev_internal
1203 Delete an internal snapshot on device if it support
1204 ETEXI
1207 .name = "drive_mirror",
1208 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1209 .params = "[-n] [-f] device target [format]",
1210 .help = "initiates live storage\n\t\t\t"
1211 "migration for a device. The device's contents are\n\t\t\t"
1212 "copied to the new image file, including data that\n\t\t\t"
1213 "is written after the command is started.\n\t\t\t"
1214 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1215 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1216 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1217 "so that the result does not need a backing file.\n\t\t\t",
1218 .cmd = hmp_drive_mirror,
1220 STEXI
1221 @item drive_mirror
1222 @findex drive_mirror
1223 Start mirroring a block device's writes to a new destination,
1224 using the specified target.
1225 ETEXI
1228 .name = "drive_backup",
1229 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1230 .params = "[-n] [-f] [-c] device target [format]",
1231 .help = "initiates a point-in-time\n\t\t\t"
1232 "copy for a device. The device's contents are\n\t\t\t"
1233 "copied to the new image file, excluding 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 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1240 "(if the target format supports it).\n\t\t\t",
1241 .cmd = hmp_drive_backup,
1243 STEXI
1244 @item drive_backup
1245 @findex drive_backup
1246 Start a point-in-time copy of a block device to a specificed target.
1247 ETEXI
1250 .name = "drive_add",
1251 .args_type = "node:-n,pci_addr:s,opts:s",
1252 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1253 "[file=file][,if=type][,bus=n]\n"
1254 "[,unit=m][,media=d][,index=i]\n"
1255 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1256 "[,snapshot=on|off][,cache=on|off]\n"
1257 "[,readonly=on|off][,copy-on-read=on|off]",
1258 .help = "add drive to PCI storage controller",
1259 .cmd = hmp_drive_add,
1262 STEXI
1263 @item drive_add
1264 @findex drive_add
1265 Add drive to PCI storage controller.
1266 ETEXI
1269 .name = "pcie_aer_inject_error",
1270 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1271 "id:s,error_status:s,"
1272 "header0:i?,header1:i?,header2:i?,header3:i?,"
1273 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1274 .params = "[-a] [-c] id "
1275 "<error_status> [<tlp header> [<tlp header prefix>]]",
1276 .help = "inject pcie aer error\n\t\t\t"
1277 " -a for advisory non fatal error\n\t\t\t"
1278 " -c for correctable error\n\t\t\t"
1279 "<id> = qdev device id\n\t\t\t"
1280 "<error_status> = error string or 32bit\n\t\t\t"
1281 "<tlb header> = 32bit x 4\n\t\t\t"
1282 "<tlb header prefix> = 32bit x 4",
1283 .cmd = hmp_pcie_aer_inject_error,
1286 STEXI
1287 @item pcie_aer_inject_error
1288 @findex pcie_aer_inject_error
1289 Inject PCIe AER error
1290 ETEXI
1293 .name = "host_net_add",
1294 .args_type = "device:s,opts:s?",
1295 .params = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]",
1296 .help = "add host VLAN client (deprecated, use netdev_add instead)",
1297 .cmd = hmp_host_net_add,
1298 .command_completion = host_net_add_completion,
1301 STEXI
1302 @item host_net_add
1303 @findex host_net_add
1304 Add host VLAN client. Deprecated, please use @code{netdev_add} instead.
1305 ETEXI
1308 .name = "host_net_remove",
1309 .args_type = "vlan_id:i,device:s",
1310 .params = "vlan_id name",
1311 .help = "remove host VLAN client (deprecated, use netdev_del instead)",
1312 .cmd = hmp_host_net_remove,
1313 .command_completion = host_net_remove_completion,
1316 STEXI
1317 @item host_net_remove
1318 @findex host_net_remove
1319 Remove host VLAN client. Deprecated, please use @code{netdev_del} instead.
1320 ETEXI
1323 .name = "netdev_add",
1324 .args_type = "netdev:O",
1325 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1326 .help = "add host network device",
1327 .cmd = hmp_netdev_add,
1328 .command_completion = netdev_add_completion,
1331 STEXI
1332 @item netdev_add
1333 @findex netdev_add
1334 Add host network device.
1335 ETEXI
1338 .name = "netdev_del",
1339 .args_type = "id:s",
1340 .params = "id",
1341 .help = "remove host network device",
1342 .cmd = hmp_netdev_del,
1343 .command_completion = netdev_del_completion,
1346 STEXI
1347 @item netdev_del
1348 @findex netdev_del
1349 Remove host network device.
1350 ETEXI
1353 .name = "object_add",
1354 .args_type = "object:O",
1355 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1356 .help = "create QOM object",
1357 .cmd = hmp_object_add,
1358 .command_completion = object_add_completion,
1361 STEXI
1362 @item object_add
1363 @findex object_add
1364 Create QOM object.
1365 ETEXI
1368 .name = "object_del",
1369 .args_type = "id:s",
1370 .params = "id",
1371 .help = "destroy QOM object",
1372 .cmd = hmp_object_del,
1373 .command_completion = object_del_completion,
1376 STEXI
1377 @item object_del
1378 @findex object_del
1379 Destroy QOM object.
1380 ETEXI
1382 #ifdef CONFIG_SLIRP
1384 .name = "hostfwd_add",
1385 .args_type = "arg1:s,arg2:s?,arg3:s?",
1386 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1387 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1388 .cmd = hmp_hostfwd_add,
1390 #endif
1391 STEXI
1392 @item hostfwd_add
1393 @findex hostfwd_add
1394 Redirect TCP or UDP connections from host to guest (requires -net user).
1395 ETEXI
1397 #ifdef CONFIG_SLIRP
1399 .name = "hostfwd_remove",
1400 .args_type = "arg1:s,arg2:s?,arg3:s?",
1401 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1402 .help = "remove host-to-guest TCP or UDP redirection",
1403 .cmd = hmp_hostfwd_remove,
1406 #endif
1407 STEXI
1408 @item hostfwd_remove
1409 @findex hostfwd_remove
1410 Remove host-to-guest TCP or UDP redirection.
1411 ETEXI
1414 .name = "balloon",
1415 .args_type = "value:M",
1416 .params = "target",
1417 .help = "request VM to change its memory allocation (in MB)",
1418 .cmd = hmp_balloon,
1421 STEXI
1422 @item balloon @var{value}
1423 @findex balloon
1424 Request VM to change its memory allocation to @var{value} (in MB).
1425 ETEXI
1428 .name = "set_link",
1429 .args_type = "name:s,up:b",
1430 .params = "name on|off",
1431 .help = "change the link status of a network adapter",
1432 .cmd = hmp_set_link,
1433 .command_completion = set_link_completion,
1436 STEXI
1437 @item set_link @var{name} [on|off]
1438 @findex set_link
1439 Switch link @var{name} on (i.e. up) or off (i.e. down).
1440 ETEXI
1443 .name = "watchdog_action",
1444 .args_type = "action:s",
1445 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1446 .help = "change watchdog action",
1447 .cmd = hmp_watchdog_action,
1448 .command_completion = watchdog_action_completion,
1451 STEXI
1452 @item watchdog_action
1453 @findex watchdog_action
1454 Change watchdog action.
1455 ETEXI
1458 .name = "acl_show",
1459 .args_type = "aclname:s",
1460 .params = "aclname",
1461 .help = "list rules in the access control list",
1462 .cmd = hmp_acl_show,
1465 STEXI
1466 @item acl_show @var{aclname}
1467 @findex acl_show
1468 List all the matching rules in the access control list, and the default
1469 policy. There are currently two named access control lists,
1470 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1471 certificate distinguished name, and SASL username respectively.
1472 ETEXI
1475 .name = "acl_policy",
1476 .args_type = "aclname:s,policy:s",
1477 .params = "aclname allow|deny",
1478 .help = "set default access control list policy",
1479 .cmd = hmp_acl_policy,
1482 STEXI
1483 @item acl_policy @var{aclname} @code{allow|deny}
1484 @findex acl_policy
1485 Set the default access control list policy, used in the event that
1486 none of the explicit rules match. The default policy at startup is
1487 always @code{deny}.
1488 ETEXI
1491 .name = "acl_add",
1492 .args_type = "aclname:s,match:s,policy:s,index:i?",
1493 .params = "aclname match allow|deny [index]",
1494 .help = "add a match rule to the access control list",
1495 .cmd = hmp_acl_add,
1498 STEXI
1499 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1500 @findex acl_add
1501 Add a match rule to the access control list, allowing or denying access.
1502 The match will normally be an exact username or x509 distinguished name,
1503 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1504 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1505 normally be appended to the end of the ACL, but can be inserted
1506 earlier in the list if the optional @var{index} parameter is supplied.
1507 ETEXI
1510 .name = "acl_remove",
1511 .args_type = "aclname:s,match:s",
1512 .params = "aclname match",
1513 .help = "remove a match rule from the access control list",
1514 .cmd = hmp_acl_remove,
1517 STEXI
1518 @item acl_remove @var{aclname} @var{match}
1519 @findex acl_remove
1520 Remove the specified match rule from the access control list.
1521 ETEXI
1524 .name = "acl_reset",
1525 .args_type = "aclname:s",
1526 .params = "aclname",
1527 .help = "reset the access control list",
1528 .cmd = hmp_acl_reset,
1531 STEXI
1532 @item acl_reset @var{aclname}
1533 @findex acl_reset
1534 Remove all matches from the access control list, and set the default
1535 policy back to @code{deny}.
1536 ETEXI
1539 .name = "nbd_server_start",
1540 .args_type = "all:-a,writable:-w,uri:s",
1541 .params = "nbd_server_start [-a] [-w] host:port",
1542 .help = "serve block devices on the given host and port",
1543 .cmd = hmp_nbd_server_start,
1545 STEXI
1546 @item nbd_server_start @var{host}:@var{port}
1547 @findex nbd_server_start
1548 Start an NBD server on the given host and/or port. If the @option{-a}
1549 option is included, all of the virtual machine's block devices that
1550 have an inserted media on them are automatically exported; in this case,
1551 the @option{-w} option makes the devices writable too.
1552 ETEXI
1555 .name = "nbd_server_add",
1556 .args_type = "writable:-w,device:B,name:s?",
1557 .params = "nbd_server_add [-w] device [name]",
1558 .help = "export a block device via NBD",
1559 .cmd = hmp_nbd_server_add,
1561 STEXI
1562 @item nbd_server_add @var{device} [ @var{name} ]
1563 @findex nbd_server_add
1564 Export a block device through QEMU's NBD server, which must be started
1565 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1566 exported device writable too. The export name is controlled by @var{name},
1567 defaulting to @var{device}.
1568 ETEXI
1571 .name = "nbd_server_remove",
1572 .args_type = "force:-f,name:s",
1573 .params = "nbd_server_remove [-f] name",
1574 .help = "remove an export previously exposed via NBD",
1575 .cmd = hmp_nbd_server_remove,
1577 STEXI
1578 @item nbd_server_remove [-f] @var{name}
1579 @findex nbd_server_remove
1580 Stop exporting a block device through QEMU's NBD server, which was
1581 previously started with @command{nbd_server_add}. The @option{-f}
1582 option forces the server to drop the export immediately even if
1583 clients are connected; otherwise the command fails unless there are no
1584 clients.
1585 ETEXI
1588 .name = "nbd_server_stop",
1589 .args_type = "",
1590 .params = "nbd_server_stop",
1591 .help = "stop serving block devices using the NBD protocol",
1592 .cmd = hmp_nbd_server_stop,
1594 STEXI
1595 @item nbd_server_stop
1596 @findex nbd_server_stop
1597 Stop the QEMU embedded NBD server.
1598 ETEXI
1601 #if defined(TARGET_I386)
1604 .name = "mce",
1605 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1606 .params = "[-b] cpu bank status mcgstatus addr misc",
1607 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1608 .cmd = hmp_mce,
1611 #endif
1612 STEXI
1613 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1614 @findex mce (x86)
1615 Inject an MCE on the given CPU (x86 only).
1616 ETEXI
1619 .name = "getfd",
1620 .args_type = "fdname:s",
1621 .params = "getfd name",
1622 .help = "receive a file descriptor via SCM rights and assign it a name",
1623 .cmd = hmp_getfd,
1626 STEXI
1627 @item getfd @var{fdname}
1628 @findex getfd
1629 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1630 mechanism on unix sockets, it is stored using the name @var{fdname} for
1631 later use by other monitor commands.
1632 ETEXI
1635 .name = "closefd",
1636 .args_type = "fdname:s",
1637 .params = "closefd name",
1638 .help = "close a file descriptor previously passed via SCM rights",
1639 .cmd = hmp_closefd,
1642 STEXI
1643 @item closefd @var{fdname}
1644 @findex closefd
1645 Close the file descriptor previously assigned to @var{fdname} using the
1646 @code{getfd} command. This is only needed if the file descriptor was never
1647 used by another monitor command.
1648 ETEXI
1651 .name = "block_passwd",
1652 .args_type = "device:B,password:s",
1653 .params = "block_passwd device password",
1654 .help = "set the password of encrypted block devices",
1655 .cmd = hmp_block_passwd,
1658 STEXI
1659 @item block_passwd @var{device} @var{password}
1660 @findex block_passwd
1661 Set the encrypted device @var{device} password to @var{password}
1663 This command is now obsolete and will always return an error since 2.10
1664 ETEXI
1667 .name = "block_set_io_throttle",
1668 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1669 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1670 .help = "change I/O throttle limits for a block drive",
1671 .cmd = hmp_block_set_io_throttle,
1674 STEXI
1675 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1676 @findex block_set_io_throttle
1677 Change 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}
1678 ETEXI
1681 .name = "set_password",
1682 .args_type = "protocol:s,password:s,connected:s?",
1683 .params = "protocol password action-if-connected",
1684 .help = "set spice/vnc password",
1685 .cmd = hmp_set_password,
1688 STEXI
1689 @item set_password [ vnc | spice ] password [ action-if-connected ]
1690 @findex set_password
1691 Change spice/vnc password. Use zero to make the password stay valid
1692 forever. @var{action-if-connected} specifies what should happen in
1693 case a connection is established: @var{fail} makes the password change
1694 fail. @var{disconnect} changes the password and disconnects the
1695 client. @var{keep} changes the password and keeps the connection up.
1696 @var{keep} is the default.
1697 ETEXI
1700 .name = "expire_password",
1701 .args_type = "protocol:s,time:s",
1702 .params = "protocol time",
1703 .help = "set spice/vnc password expire-time",
1704 .cmd = hmp_expire_password,
1707 STEXI
1708 @item expire_password [ vnc | spice ] expire-time
1709 @findex expire_password
1710 Specify when a password for spice/vnc becomes
1711 invalid. @var{expire-time} accepts:
1713 @table @var
1714 @item now
1715 Invalidate password instantly.
1717 @item never
1718 Password stays valid forever.
1720 @item +nsec
1721 Password stays valid for @var{nsec} seconds starting now.
1723 @item nsec
1724 Password is invalidated at the given time. @var{nsec} are the seconds
1725 passed since 1970, i.e. unix epoch.
1727 @end table
1728 ETEXI
1731 .name = "chardev-add",
1732 .args_type = "args:s",
1733 .params = "args",
1734 .help = "add chardev",
1735 .cmd = hmp_chardev_add,
1736 .command_completion = chardev_add_completion,
1739 STEXI
1740 @item chardev-add args
1741 @findex chardev-add
1742 chardev-add accepts the same parameters as the -chardev command line switch.
1744 ETEXI
1747 .name = "chardev-change",
1748 .args_type = "id:s,args:s",
1749 .params = "id args",
1750 .help = "change chardev",
1751 .cmd = hmp_chardev_change,
1754 STEXI
1755 @item chardev-change args
1756 @findex chardev-change
1757 chardev-change accepts existing chardev @var{id} and then the same arguments
1758 as the -chardev command line switch (except for "id").
1760 ETEXI
1763 .name = "chardev-remove",
1764 .args_type = "id:s",
1765 .params = "id",
1766 .help = "remove chardev",
1767 .cmd = hmp_chardev_remove,
1768 .command_completion = chardev_remove_completion,
1771 STEXI
1772 @item chardev-remove id
1773 @findex chardev-remove
1774 Removes the chardev @var{id}.
1776 ETEXI
1779 .name = "chardev-send-break",
1780 .args_type = "id:s",
1781 .params = "id",
1782 .help = "send a break on chardev",
1783 .cmd = hmp_chardev_send_break,
1784 .command_completion = chardev_remove_completion,
1787 STEXI
1788 @item chardev-send-break id
1789 @findex chardev-send-break
1790 Send a break on the chardev @var{id}.
1792 ETEXI
1795 .name = "qemu-io",
1796 .args_type = "device:B,command:s",
1797 .params = "[device] \"[command]\"",
1798 .help = "run a qemu-io command on a block device",
1799 .cmd = hmp_qemu_io,
1802 STEXI
1803 @item qemu-io @var{device} @var{command}
1804 @findex qemu-io
1805 Executes a qemu-io command on the given block device.
1807 ETEXI
1810 .name = "cpu-add",
1811 .args_type = "id:i",
1812 .params = "id",
1813 .help = "add cpu",
1814 .cmd = hmp_cpu_add,
1817 STEXI
1818 @item cpu-add @var{id}
1819 @findex cpu-add
1820 Add CPU with id @var{id}
1821 ETEXI
1824 .name = "qom-list",
1825 .args_type = "path:s?",
1826 .params = "path",
1827 .help = "list QOM properties",
1828 .cmd = hmp_qom_list,
1831 STEXI
1832 @item qom-list [@var{path}]
1833 Print QOM properties of object at location @var{path}
1834 ETEXI
1837 .name = "qom-set",
1838 .args_type = "path:s,property:s,value:s",
1839 .params = "path property value",
1840 .help = "set QOM property",
1841 .cmd = hmp_qom_set,
1844 STEXI
1845 @item qom-set @var{path} @var{property} @var{value}
1846 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1847 ETEXI
1850 .name = "info",
1851 .args_type = "item:s?",
1852 .params = "[subcommand]",
1853 .help = "show various information about the system state",
1854 .cmd = hmp_info_help,
1855 .sub_table = info_cmds,
1858 STEXI
1859 @end table
1860 ETEXI