Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20170627-tag' into staging
[qemu/ar7.git] / hmp-commands.hx
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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 = "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,
676 STEXI
677 @item usb_add @var{devname}
678 @findex usb_add
679 Add the USB device @var{devname}. This command is deprecated, please
680 use @code{device_add} instead. For details of available devices see
681 @ref{usb_devices}
682 ETEXI
685 .name = "usb_del",
686 .args_type = "devname:s",
687 .params = "device",
688 .help = "remove USB device 'bus.addr'",
689 .cmd = hmp_usb_del,
692 STEXI
693 @item usb_del @var{devname}
694 @findex usb_del
695 Remove the USB device @var{devname} from the QEMU virtual USB
696 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
697 command @code{info usb} to see the devices you can remove. This
698 command is deprecated, please use @code{device_del} instead.
699 ETEXI
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,
710 STEXI
711 @item device_add @var{config}
712 @findex device_add
713 Add device.
714 ETEXI
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,
725 STEXI
726 @item device_del @var{id}
727 @findex device_del
728 Remove device @var{id}. @var{id} may be a short ID
729 or a QOM object path.
730 ETEXI
733 .name = "cpu",
734 .args_type = "index:i",
735 .params = "index",
736 .help = "set the default CPU",
737 .cmd = hmp_cpu,
740 STEXI
741 @item cpu @var{index}
742 @findex cpu
743 Set the default CPU.
744 ETEXI
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,
754 STEXI
755 @item mouse_move @var{dx} @var{dy} [@var{dz}]
756 @findex mouse_move
757 Move the active mouse to the specified coordinates @var{dx} @var{dy}
758 with optional scroll axis @var{dz}.
759 ETEXI
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,
769 STEXI
770 @item mouse_button @var{val}
771 @findex mouse_button
772 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
773 ETEXI
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,
783 STEXI
784 @item mouse_set @var{index}
785 @findex mouse_set
786 Set which mouse device receives events at given @var{index}, index
787 can be obtained with
788 @example
789 info mice
790 @end example
791 ETEXI
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,
800 STEXI
801 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
802 @findex wavcapture
803 Capture audio into @var{filename}. Using sample rate @var{frequency}
804 bits per sample @var{bits} and number of channels @var{channels}.
806 Defaults:
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
812 ETEXI
815 .name = "stopcapture",
816 .args_type = "n:i",
817 .params = "capture index",
818 .help = "stop capture",
819 .cmd = hmp_stopcapture,
821 STEXI
822 @item stopcapture @var{index}
823 @findex stopcapture
824 Stop capture with a given @var{index}, index can be obtained with
825 @example
826 info capture
827 @end example
828 ETEXI
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,
838 STEXI
839 @item memsave @var{addr} @var{size} @var{file}
840 @findex memsave
841 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
842 ETEXI
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,
852 STEXI
853 @item pmemsave @var{addr} @var{size} @var{file}
854 @findex pmemsave
855 save to disk physical memory dump starting at @var{addr} of size @var{size}.
856 ETEXI
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,
866 STEXI
867 @item boot_set @var{bootdevicelist}
868 @findex boot_set
869 Define new values for the boot device list. Those values will override
870 the values specified on the command line through the @code{-boot} option.
872 The values that can be specified here depend on the machine type, but are
873 the same that can be specified in the @code{-boot} command line option.
874 ETEXI
877 .name = "nmi",
878 .args_type = "",
879 .params = "",
880 .help = "inject an NMI",
881 .cmd = hmp_nmi,
883 STEXI
884 @item nmi @var{cpu}
885 @findex nmi
886 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
888 ETEXI
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,
899 STEXI
900 @item ringbuf_write @var{device} @var{data}
901 @findex ringbuf_write
902 Write @var{data} to ring buffer character device @var{device}.
903 @var{data} must be a UTF-8 string.
905 ETEXI
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,
916 STEXI
917 @item ringbuf_read @var{device}
918 @findex ringbuf_read
919 Read and print up to @var{size} bytes from ring buffer character
920 device @var{device}.
921 Certain non-printable characters are printed \uXXXX, where XXXX is the
922 character code in hexadecimal. Character \ is printed \\.
923 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
924 NUL characters, after the ring buffer lost data, and when reading
925 stops because the size limit is reached.
927 ETEXI
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,
942 STEXI
943 @item migrate [-d] [-b] [-i] @var{uri}
944 @findex migrate
945 Migrate 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)
948 ETEXI
951 .name = "migrate_cancel",
952 .args_type = "",
953 .params = "",
954 .help = "cancel the current VM migration",
955 .cmd = hmp_migrate_cancel,
958 STEXI
959 @item migrate_cancel
960 @findex migrate_cancel
961 Cancel the current VM migration.
963 ETEXI
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,
973 STEXI
974 @item migrate_incoming @var{uri}
975 @findex migrate_incoming
976 Continue an incoming migration using the @var{uri} (that has the same syntax
977 as the -incoming option).
979 ETEXI
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,
994 STEXI
995 @item migrate_set_cache_size @var{value}
996 @findex migrate_set_cache_size
997 Set cache size to @var{value} (in bytes) for xbzrle migrations.
998 ETEXI
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,
1009 STEXI
1010 @item migrate_set_speed @var{value}
1011 @findex migrate_set_speed
1012 Set maximum speed to @var{value} (in bytes) for migrations.
1013 ETEXI
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,
1023 STEXI
1024 @item migrate_set_downtime @var{second}
1025 @findex migrate_set_downtime
1026 Set maximum tolerated downtime (in seconds) for migration.
1027 ETEXI
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,
1038 STEXI
1039 @item migrate_set_capability @var{capability} @var{state}
1040 @findex migrate_set_capability
1041 Enable/Disable the usage of a capability @var{capability} for migration.
1042 ETEXI
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,
1053 STEXI
1054 @item migrate_set_parameter @var{parameter} @var{value}
1055 @findex migrate_set_parameter
1056 Set the parameter @var{parameter} for migration.
1057 ETEXI
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,
1069 STEXI
1070 @item migrate_start_postcopy
1071 @findex migrate_start_postcopy
1072 Switch in-progress migration to postcopy mode. Ignored after the end of
1073 migration (or once already in postcopy).
1074 ETEXI
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,
1085 STEXI
1086 @item x_colo_lost_heartbeat
1087 @findex x_colo_lost_heartbeat
1088 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1089 ETEXI
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,
1099 STEXI
1100 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1101 @findex client_migrate_info
1102 Set migration information for remote display. This makes the server
1103 ask the client to automatically reconnect using the new parameters
1104 once migration finished successfully. Only implemented for SPICE.
1105 ETEXI
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,
1123 STEXI
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
1127 Dump guest memory to @var{protocol}. The file can be processed with crash or
1128 gdb. 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.
1138 ETEXI
1140 #if defined(TARGET_S390X)
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,
1148 #endif
1150 STEXI
1151 @item dump-skeys @var{filename}
1152 @findex dump-skeys
1153 Save guest storage keys to a file.
1154 ETEXI
1157 .name = "snapshot_blkdev",
1158 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1159 .params = "[-n] device [new-image-file] [format]",
1160 .help = "initiates a live snapshot\n\t\t\t"
1161 "of device. If a new image file is specified, the\n\t\t\t"
1162 "new image file will become the new root image.\n\t\t\t"
1163 "If format is specified, the snapshot file will\n\t\t\t"
1164 "be created in that format.\n\t\t\t"
1165 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1166 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1167 "recreating it from scratch.",
1168 .cmd = hmp_snapshot_blkdev,
1171 STEXI
1172 @item snapshot_blkdev
1173 @findex snapshot_blkdev
1174 Snapshot device, using snapshot file as target if provided
1175 ETEXI
1178 .name = "snapshot_blkdev_internal",
1179 .args_type = "device:B,name:s",
1180 .params = "device name",
1181 .help = "take an internal snapshot of device.\n\t\t\t"
1182 "The format of the image used by device must\n\t\t\t"
1183 "support it, such as qcow2.\n\t\t\t",
1184 .cmd = hmp_snapshot_blkdev_internal,
1187 STEXI
1188 @item snapshot_blkdev_internal
1189 @findex snapshot_blkdev_internal
1190 Take an internal snapshot on device if it support
1191 ETEXI
1194 .name = "snapshot_delete_blkdev_internal",
1195 .args_type = "device:B,name:s,id:s?",
1196 .params = "device name [id]",
1197 .help = "delete an internal snapshot of device.\n\t\t\t"
1198 "If id is specified, qemu will try delete\n\t\t\t"
1199 "the snapshot matching both id and name.\n\t\t\t"
1200 "The format of the image used by device must\n\t\t\t"
1201 "support it, such as qcow2.\n\t\t\t",
1202 .cmd = hmp_snapshot_delete_blkdev_internal,
1205 STEXI
1206 @item snapshot_delete_blkdev_internal
1207 @findex snapshot_delete_blkdev_internal
1208 Delete an internal snapshot on device if it support
1209 ETEXI
1212 .name = "drive_mirror",
1213 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1214 .params = "[-n] [-f] device target [format]",
1215 .help = "initiates live storage\n\t\t\t"
1216 "migration for a device. The device's contents are\n\t\t\t"
1217 "copied to the new image file, including data that\n\t\t\t"
1218 "is written after the command is started.\n\t\t\t"
1219 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1220 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1221 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1222 "so that the result does not need a backing file.\n\t\t\t",
1223 .cmd = hmp_drive_mirror,
1225 STEXI
1226 @item drive_mirror
1227 @findex drive_mirror
1228 Start mirroring a block device's writes to a new destination,
1229 using the specified target.
1230 ETEXI
1233 .name = "drive_backup",
1234 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1235 .params = "[-n] [-f] [-c] device target [format]",
1236 .help = "initiates a point-in-time\n\t\t\t"
1237 "copy for a device. The device's contents are\n\t\t\t"
1238 "copied to the new image file, excluding data that\n\t\t\t"
1239 "is written after the command is started.\n\t\t\t"
1240 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1241 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1242 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1243 "so that the result does not need a backing file.\n\t\t\t"
1244 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1245 "(if the target format supports it).\n\t\t\t",
1246 .cmd = hmp_drive_backup,
1248 STEXI
1249 @item drive_backup
1250 @findex drive_backup
1251 Start a point-in-time copy of a block device to a specificed target.
1252 ETEXI
1255 .name = "drive_add",
1256 .args_type = "node:-n,pci_addr:s,opts:s",
1257 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1258 "[file=file][,if=type][,bus=n]\n"
1259 "[,unit=m][,media=d][,index=i]\n"
1260 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1261 "[,snapshot=on|off][,cache=on|off]\n"
1262 "[,readonly=on|off][,copy-on-read=on|off]",
1263 .help = "add drive to PCI storage controller",
1264 .cmd = hmp_drive_add,
1267 STEXI
1268 @item drive_add
1269 @findex drive_add
1270 Add drive to PCI storage controller.
1271 ETEXI
1274 .name = "pcie_aer_inject_error",
1275 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1276 "id:s,error_status:s,"
1277 "header0:i?,header1:i?,header2:i?,header3:i?,"
1278 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1279 .params = "[-a] [-c] id "
1280 "<error_status> [<tlp header> [<tlp header prefix>]]",
1281 .help = "inject pcie aer error\n\t\t\t"
1282 " -a for advisory non fatal error\n\t\t\t"
1283 " -c for correctable error\n\t\t\t"
1284 "<id> = qdev device id\n\t\t\t"
1285 "<error_status> = error string or 32bit\n\t\t\t"
1286 "<tlb header> = 32bit x 4\n\t\t\t"
1287 "<tlb header prefix> = 32bit x 4",
1288 .cmd = hmp_pcie_aer_inject_error,
1291 STEXI
1292 @item pcie_aer_inject_error
1293 @findex pcie_aer_inject_error
1294 Inject PCIe AER error
1295 ETEXI
1298 .name = "host_net_add",
1299 .args_type = "device:s,opts:s?",
1300 .params = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]",
1301 .help = "add host VLAN client (deprecated, use netdev_add instead)",
1302 .cmd = hmp_host_net_add,
1303 .command_completion = host_net_add_completion,
1306 STEXI
1307 @item host_net_add
1308 @findex host_net_add
1309 Add host VLAN client. Deprecated, please use @code{netdev_add} instead.
1310 ETEXI
1313 .name = "host_net_remove",
1314 .args_type = "vlan_id:i,device:s",
1315 .params = "vlan_id name",
1316 .help = "remove host VLAN client (deprecated, use netdev_del instead)",
1317 .cmd = hmp_host_net_remove,
1318 .command_completion = host_net_remove_completion,
1321 STEXI
1322 @item host_net_remove
1323 @findex host_net_remove
1324 Remove host VLAN client. Deprecated, please use @code{netdev_del} instead.
1325 ETEXI
1328 .name = "netdev_add",
1329 .args_type = "netdev:O",
1330 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1331 .help = "add host network device",
1332 .cmd = hmp_netdev_add,
1333 .command_completion = netdev_add_completion,
1336 STEXI
1337 @item netdev_add
1338 @findex netdev_add
1339 Add host network device.
1340 ETEXI
1343 .name = "netdev_del",
1344 .args_type = "id:s",
1345 .params = "id",
1346 .help = "remove host network device",
1347 .cmd = hmp_netdev_del,
1348 .command_completion = netdev_del_completion,
1351 STEXI
1352 @item netdev_del
1353 @findex netdev_del
1354 Remove host network device.
1355 ETEXI
1358 .name = "object_add",
1359 .args_type = "object:O",
1360 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1361 .help = "create QOM object",
1362 .cmd = hmp_object_add,
1363 .command_completion = object_add_completion,
1366 STEXI
1367 @item object_add
1368 @findex object_add
1369 Create QOM object.
1370 ETEXI
1373 .name = "object_del",
1374 .args_type = "id:s",
1375 .params = "id",
1376 .help = "destroy QOM object",
1377 .cmd = hmp_object_del,
1378 .command_completion = object_del_completion,
1381 STEXI
1382 @item object_del
1383 @findex object_del
1384 Destroy QOM object.
1385 ETEXI
1387 #ifdef CONFIG_SLIRP
1389 .name = "hostfwd_add",
1390 .args_type = "arg1:s,arg2:s?,arg3:s?",
1391 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1392 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1393 .cmd = hmp_hostfwd_add,
1395 #endif
1396 STEXI
1397 @item hostfwd_add
1398 @findex hostfwd_add
1399 Redirect TCP or UDP connections from host to guest (requires -net user).
1400 ETEXI
1402 #ifdef CONFIG_SLIRP
1404 .name = "hostfwd_remove",
1405 .args_type = "arg1:s,arg2:s?,arg3:s?",
1406 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1407 .help = "remove host-to-guest TCP or UDP redirection",
1408 .cmd = hmp_hostfwd_remove,
1411 #endif
1412 STEXI
1413 @item hostfwd_remove
1414 @findex hostfwd_remove
1415 Remove host-to-guest TCP or UDP redirection.
1416 ETEXI
1419 .name = "balloon",
1420 .args_type = "value:M",
1421 .params = "target",
1422 .help = "request VM to change its memory allocation (in MB)",
1423 .cmd = hmp_balloon,
1426 STEXI
1427 @item balloon @var{value}
1428 @findex balloon
1429 Request VM to change its memory allocation to @var{value} (in MB).
1430 ETEXI
1433 .name = "set_link",
1434 .args_type = "name:s,up:b",
1435 .params = "name on|off",
1436 .help = "change the link status of a network adapter",
1437 .cmd = hmp_set_link,
1438 .command_completion = set_link_completion,
1441 STEXI
1442 @item set_link @var{name} [on|off]
1443 @findex set_link
1444 Switch link @var{name} on (i.e. up) or off (i.e. down).
1445 ETEXI
1448 .name = "watchdog_action",
1449 .args_type = "action:s",
1450 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1451 .help = "change watchdog action",
1452 .cmd = hmp_watchdog_action,
1453 .command_completion = watchdog_action_completion,
1456 STEXI
1457 @item watchdog_action
1458 @findex watchdog_action
1459 Change watchdog action.
1460 ETEXI
1463 .name = "acl_show",
1464 .args_type = "aclname:s",
1465 .params = "aclname",
1466 .help = "list rules in the access control list",
1467 .cmd = hmp_acl_show,
1470 STEXI
1471 @item acl_show @var{aclname}
1472 @findex acl_show
1473 List all the matching rules in the access control list, and the default
1474 policy. There are currently two named access control lists,
1475 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1476 certificate distinguished name, and SASL username respectively.
1477 ETEXI
1480 .name = "acl_policy",
1481 .args_type = "aclname:s,policy:s",
1482 .params = "aclname allow|deny",
1483 .help = "set default access control list policy",
1484 .cmd = hmp_acl_policy,
1487 STEXI
1488 @item acl_policy @var{aclname} @code{allow|deny}
1489 @findex acl_policy
1490 Set the default access control list policy, used in the event that
1491 none of the explicit rules match. The default policy at startup is
1492 always @code{deny}.
1493 ETEXI
1496 .name = "acl_add",
1497 .args_type = "aclname:s,match:s,policy:s,index:i?",
1498 .params = "aclname match allow|deny [index]",
1499 .help = "add a match rule to the access control list",
1500 .cmd = hmp_acl_add,
1503 STEXI
1504 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1505 @findex acl_add
1506 Add a match rule to the access control list, allowing or denying access.
1507 The match will normally be an exact username or x509 distinguished name,
1508 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1509 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1510 normally be appended to the end of the ACL, but can be inserted
1511 earlier in the list if the optional @var{index} parameter is supplied.
1512 ETEXI
1515 .name = "acl_remove",
1516 .args_type = "aclname:s,match:s",
1517 .params = "aclname match",
1518 .help = "remove a match rule from the access control list",
1519 .cmd = hmp_acl_remove,
1522 STEXI
1523 @item acl_remove @var{aclname} @var{match}
1524 @findex acl_remove
1525 Remove the specified match rule from the access control list.
1526 ETEXI
1529 .name = "acl_reset",
1530 .args_type = "aclname:s",
1531 .params = "aclname",
1532 .help = "reset the access control list",
1533 .cmd = hmp_acl_reset,
1536 STEXI
1537 @item acl_reset @var{aclname}
1538 @findex acl_reset
1539 Remove all matches from the access control list, and set the default
1540 policy back to @code{deny}.
1541 ETEXI
1544 .name = "nbd_server_start",
1545 .args_type = "all:-a,writable:-w,uri:s",
1546 .params = "nbd_server_start [-a] [-w] host:port",
1547 .help = "serve block devices on the given host and port",
1548 .cmd = hmp_nbd_server_start,
1550 STEXI
1551 @item nbd_server_start @var{host}:@var{port}
1552 @findex nbd_server_start
1553 Start an NBD server on the given host and/or port. If the @option{-a}
1554 option is included, all of the virtual machine's block devices that
1555 have an inserted media on them are automatically exported; in this case,
1556 the @option{-w} option makes the devices writable too.
1557 ETEXI
1560 .name = "nbd_server_add",
1561 .args_type = "writable:-w,device:B",
1562 .params = "nbd_server_add [-w] device",
1563 .help = "export a block device via NBD",
1564 .cmd = hmp_nbd_server_add,
1566 STEXI
1567 @item nbd_server_add @var{device}
1568 @findex nbd_server_add
1569 Export a block device through QEMU's NBD server, which must be started
1570 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1571 exported device writable too.
1572 ETEXI
1575 .name = "nbd_server_stop",
1576 .args_type = "",
1577 .params = "nbd_server_stop",
1578 .help = "stop serving block devices using the NBD protocol",
1579 .cmd = hmp_nbd_server_stop,
1581 STEXI
1582 @item nbd_server_stop
1583 @findex nbd_server_stop
1584 Stop the QEMU embedded NBD server.
1585 ETEXI
1588 #if defined(TARGET_I386)
1591 .name = "mce",
1592 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1593 .params = "[-b] cpu bank status mcgstatus addr misc",
1594 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1595 .cmd = hmp_mce,
1598 #endif
1599 STEXI
1600 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1601 @findex mce (x86)
1602 Inject an MCE on the given CPU (x86 only).
1603 ETEXI
1606 .name = "getfd",
1607 .args_type = "fdname:s",
1608 .params = "getfd name",
1609 .help = "receive a file descriptor via SCM rights and assign it a name",
1610 .cmd = hmp_getfd,
1613 STEXI
1614 @item getfd @var{fdname}
1615 @findex getfd
1616 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1617 mechanism on unix sockets, it is stored using the name @var{fdname} for
1618 later use by other monitor commands.
1619 ETEXI
1622 .name = "closefd",
1623 .args_type = "fdname:s",
1624 .params = "closefd name",
1625 .help = "close a file descriptor previously passed via SCM rights",
1626 .cmd = hmp_closefd,
1629 STEXI
1630 @item closefd @var{fdname}
1631 @findex closefd
1632 Close the file descriptor previously assigned to @var{fdname} using the
1633 @code{getfd} command. This is only needed if the file descriptor was never
1634 used by another monitor command.
1635 ETEXI
1638 .name = "block_passwd",
1639 .args_type = "device:B,password:s",
1640 .params = "block_passwd device password",
1641 .help = "set the password of encrypted block devices",
1642 .cmd = hmp_block_passwd,
1645 STEXI
1646 @item block_passwd @var{device} @var{password}
1647 @findex block_passwd
1648 Set the encrypted device @var{device} password to @var{password}
1649 ETEXI
1652 .name = "block_set_io_throttle",
1653 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1654 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1655 .help = "change I/O throttle limits for a block drive",
1656 .cmd = hmp_block_set_io_throttle,
1659 STEXI
1660 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1661 @findex block_set_io_throttle
1662 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}
1663 ETEXI
1666 .name = "set_password",
1667 .args_type = "protocol:s,password:s,connected:s?",
1668 .params = "protocol password action-if-connected",
1669 .help = "set spice/vnc password",
1670 .cmd = hmp_set_password,
1673 STEXI
1674 @item set_password [ vnc | spice ] password [ action-if-connected ]
1675 @findex set_password
1676 Change spice/vnc password. Use zero to make the password stay valid
1677 forever. @var{action-if-connected} specifies what should happen in
1678 case a connection is established: @var{fail} makes the password change
1679 fail. @var{disconnect} changes the password and disconnects the
1680 client. @var{keep} changes the password and keeps the connection up.
1681 @var{keep} is the default.
1682 ETEXI
1685 .name = "expire_password",
1686 .args_type = "protocol:s,time:s",
1687 .params = "protocol time",
1688 .help = "set spice/vnc password expire-time",
1689 .cmd = hmp_expire_password,
1692 STEXI
1693 @item expire_password [ vnc | spice ] expire-time
1694 @findex expire_password
1695 Specify when a password for spice/vnc becomes
1696 invalid. @var{expire-time} accepts:
1698 @table @var
1699 @item now
1700 Invalidate password instantly.
1702 @item never
1703 Password stays valid forever.
1705 @item +nsec
1706 Password stays valid for @var{nsec} seconds starting now.
1708 @item nsec
1709 Password is invalidated at the given time. @var{nsec} are the seconds
1710 passed since 1970, i.e. unix epoch.
1712 @end table
1713 ETEXI
1716 .name = "chardev-add",
1717 .args_type = "args:s",
1718 .params = "args",
1719 .help = "add chardev",
1720 .cmd = hmp_chardev_add,
1721 .command_completion = chardev_add_completion,
1724 STEXI
1725 @item chardev-add args
1726 @findex chardev-add
1727 chardev_add accepts the same parameters as the -chardev command line switch.
1729 ETEXI
1732 .name = "chardev-remove",
1733 .args_type = "id:s",
1734 .params = "id",
1735 .help = "remove chardev",
1736 .cmd = hmp_chardev_remove,
1737 .command_completion = chardev_remove_completion,
1740 STEXI
1741 @item chardev-remove id
1742 @findex chardev-remove
1743 Removes the chardev @var{id}.
1745 ETEXI
1748 .name = "qemu-io",
1749 .args_type = "device:B,command:s",
1750 .params = "[device] \"[command]\"",
1751 .help = "run a qemu-io command on a block device",
1752 .cmd = hmp_qemu_io,
1755 STEXI
1756 @item qemu-io @var{device} @var{command}
1757 @findex qemu-io
1758 Executes a qemu-io command on the given block device.
1760 ETEXI
1763 .name = "cpu-add",
1764 .args_type = "id:i",
1765 .params = "id",
1766 .help = "add cpu",
1767 .cmd = hmp_cpu_add,
1770 STEXI
1771 @item cpu-add @var{id}
1772 @findex cpu-add
1773 Add CPU with id @var{id}
1774 ETEXI
1777 .name = "qom-list",
1778 .args_type = "path:s?",
1779 .params = "path",
1780 .help = "list QOM properties",
1781 .cmd = hmp_qom_list,
1784 STEXI
1785 @item qom-list [@var{path}]
1786 Print QOM properties of object at location @var{path}
1787 ETEXI
1790 .name = "qom-set",
1791 .args_type = "path:s,property:s,value:s",
1792 .params = "path property value",
1793 .help = "set QOM property",
1794 .cmd = hmp_qom_set,
1797 STEXI
1798 @item qom-set @var{path} @var{property} @var{value}
1799 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1800 ETEXI
1803 .name = "info",
1804 .args_type = "item:s?",
1805 .params = "[subcommand]",
1806 .help = "show various information about the system state",
1807 .cmd = hmp_info_help,
1808 .sub_table = info_cmds,
1811 STEXI
1812 @end table
1813 ETEXI