Makefile, configure: Support building rST documentation
[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,
18 .flags = "p",
21 STEXI
22 @item help or ? [@var{cmd}]
23 @findex help
24 Show the help for all commands or just for command @var{cmd}.
25 ETEXI
28 .name = "commit",
29 .args_type = "device:B",
30 .params = "device|all",
31 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
32 .cmd = hmp_commit,
35 STEXI
36 @item commit
37 @findex commit
38 Commit changes to the disk images (if -snapshot is used) or backing files.
39 If the backing file is smaller than the snapshot, then the backing file will be
40 resized to be the same size as the snapshot. If the snapshot is smaller than
41 the backing file, the backing file will not be truncated. If you want the
42 backing file to match the size of the smaller snapshot, you can safely truncate
43 it yourself once the commit operation successfully completes.
44 ETEXI
47 .name = "q|quit",
48 .args_type = "",
49 .params = "",
50 .help = "quit the emulator",
51 .cmd = hmp_quit,
54 STEXI
55 @item q or quit
56 @findex quit
57 Quit the emulator.
58 ETEXI
61 .name = "exit_preconfig",
62 .args_type = "",
63 .params = "",
64 .help = "exit the preconfig state",
65 .cmd = hmp_exit_preconfig,
66 .flags = "p",
69 STEXI
70 @item exit_preconfig
71 @findex exit_preconfig
72 This command makes QEMU exit the preconfig state and proceed with
73 VM initialization using configuration data provided on the command line
74 and via the QMP monitor during the preconfig state. The command is only
75 available during the preconfig state (i.e. when the --preconfig command
76 line option was in use).
77 ETEXI
80 .name = "block_resize",
81 .args_type = "device:B,size:o",
82 .params = "device size",
83 .help = "resize a block image",
84 .cmd = hmp_block_resize,
87 STEXI
88 @item block_resize
89 @findex block_resize
90 Resize a block image while a guest is running. Usually requires guest
91 action to see the updated size. Resize to a lower size is supported,
92 but should be used with extreme caution. Note that this command only
93 resizes image files, it can not resize block devices like LVM volumes.
94 ETEXI
97 .name = "block_stream",
98 .args_type = "device:B,speed:o?,base:s?",
99 .params = "device [speed [base]]",
100 .help = "copy data from a backing file into a block device",
101 .cmd = hmp_block_stream,
104 STEXI
105 @item block_stream
106 @findex block_stream
107 Copy data from a backing file into a block device.
108 ETEXI
111 .name = "block_job_set_speed",
112 .args_type = "device:B,speed:o",
113 .params = "device speed",
114 .help = "set maximum speed for a background block operation",
115 .cmd = hmp_block_job_set_speed,
118 STEXI
119 @item block_job_set_speed
120 @findex block_job_set_speed
121 Set maximum speed for a background block operation.
122 ETEXI
125 .name = "block_job_cancel",
126 .args_type = "force:-f,device:B",
127 .params = "[-f] device",
128 .help = "stop an active background block operation (use -f"
129 "\n\t\t\t if you want to abort the operation immediately"
130 "\n\t\t\t instead of keep running until data is in sync)",
131 .cmd = hmp_block_job_cancel,
134 STEXI
135 @item block_job_cancel
136 @findex block_job_cancel
137 Stop an active background block operation (streaming, mirroring).
138 ETEXI
141 .name = "block_job_complete",
142 .args_type = "device:B",
143 .params = "device",
144 .help = "stop an active background block operation",
145 .cmd = hmp_block_job_complete,
148 STEXI
149 @item block_job_complete
150 @findex block_job_complete
151 Manually trigger completion of an active background block operation.
152 For mirroring, this will switch the device to the destination path.
153 ETEXI
156 .name = "block_job_pause",
157 .args_type = "device:B",
158 .params = "device",
159 .help = "pause an active background block operation",
160 .cmd = hmp_block_job_pause,
163 STEXI
164 @item block_job_pause
165 @findex block_job_pause
166 Pause an active block streaming operation.
167 ETEXI
170 .name = "block_job_resume",
171 .args_type = "device:B",
172 .params = "device",
173 .help = "resume a paused background block operation",
174 .cmd = hmp_block_job_resume,
177 STEXI
178 @item block_job_resume
179 @findex block_job_resume
180 Resume a paused block streaming operation.
181 ETEXI
184 .name = "eject",
185 .args_type = "force:-f,device:B",
186 .params = "[-f] device",
187 .help = "eject a removable medium (use -f to force it)",
188 .cmd = hmp_eject,
191 STEXI
192 @item eject [-f] @var{device}
193 @findex eject
194 Eject a removable medium (use -f to force it).
195 ETEXI
198 .name = "drive_del",
199 .args_type = "id:B",
200 .params = "device",
201 .help = "remove host block device",
202 .cmd = hmp_drive_del,
205 STEXI
206 @item drive_del @var{device}
207 @findex drive_del
208 Remove host block device. The result is that guest generated IO is no longer
209 submitted against the host device underlying the disk. Once a drive has
210 been deleted, the QEMU Block layer returns -EIO which results in IO
211 errors in the guest for applications that are reading/writing to the device.
212 These errors are always reported to the guest, regardless of the drive's error
213 actions (drive options rerror, werror).
214 ETEXI
217 .name = "change",
218 .args_type = "device:B,target:F,arg:s?,read-only-mode:s?",
219 .params = "device filename [format [read-only-mode]]",
220 .help = "change a removable medium, optional format",
221 .cmd = hmp_change,
224 STEXI
225 @item change @var{device} @var{setting}
226 @findex change
227 Change the configuration of a device.
229 @table @option
230 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
231 Change the medium for a removable disk device to point to @var{filename}. eg
233 @example
234 (qemu) change ide1-cd0 /path/to/some.iso
235 @end example
237 @var{format} is optional.
239 @var{read-only-mode} may be used to change the read-only status of the device.
240 It accepts the following values:
242 @table @var
243 @item retain
244 Retains the current status; this is the default.
246 @item read-only
247 Makes the device read-only.
249 @item read-write
250 Makes the device writable.
251 @end table
253 @item change vnc @var{display},@var{options}
254 Change the configuration of the VNC server. The valid syntax for @var{display}
255 and @var{options} are described at @ref{sec_invocation}. eg
257 @example
258 (qemu) change vnc localhost:1
259 @end example
261 @item change vnc password [@var{password}]
263 Change the password associated with the VNC server. If the new password is not
264 supplied, the monitor will prompt for it to be entered. VNC passwords are only
265 significant up to 8 letters. eg
267 @example
268 (qemu) change vnc password
269 Password: ********
270 @end example
272 @end table
273 ETEXI
276 .name = "screendump",
277 .args_type = "filename:F,device:s?,head:i?",
278 .params = "filename [device [head]]",
279 .help = "save screen from head 'head' of display device 'device' "
280 "into PPM image 'filename'",
281 .cmd = hmp_screendump,
284 STEXI
285 @item screendump @var{filename}
286 @findex screendump
287 Save screen into PPM image @var{filename}.
288 ETEXI
291 .name = "logfile",
292 .args_type = "filename:F",
293 .params = "filename",
294 .help = "output logs to 'filename'",
295 .cmd = hmp_logfile,
298 STEXI
299 @item logfile @var{filename}
300 @findex logfile
301 Output logs to @var{filename}.
302 ETEXI
305 .name = "trace-event",
306 .args_type = "name:s,option:b,vcpu:i?",
307 .params = "name on|off [vcpu]",
308 .help = "changes status of a specific trace event "
309 "(vcpu: vCPU to set, default is all)",
310 .cmd = hmp_trace_event,
311 .command_completion = trace_event_completion,
314 STEXI
315 @item trace-event
316 @findex trace-event
317 changes status of a trace event
318 ETEXI
320 #if defined(CONFIG_TRACE_SIMPLE)
322 .name = "trace-file",
323 .args_type = "op:s?,arg:F?",
324 .params = "on|off|flush|set [arg]",
325 .help = "open, close, or flush trace file, or set a new file name",
326 .cmd = hmp_trace_file,
329 STEXI
330 @item trace-file on|off|flush
331 @findex trace-file
332 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
333 ETEXI
334 #endif
337 .name = "log",
338 .args_type = "items:s",
339 .params = "item1[,...]",
340 .help = "activate logging of the specified items",
341 .cmd = hmp_log,
344 STEXI
345 @item log @var{item1}[,...]
346 @findex log
347 Activate logging of the specified items.
348 ETEXI
351 .name = "savevm",
352 .args_type = "name:s?",
353 .params = "tag",
354 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
355 .cmd = hmp_savevm,
358 STEXI
359 @item savevm @var{tag}
360 @findex savevm
361 Create a snapshot of the whole virtual machine. If @var{tag} is
362 provided, it is used as human readable identifier. If there is already
363 a snapshot with the same tag, it is replaced. More info at
364 @ref{vm_snapshots}.
366 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
367 only @var{tag} as parameter.
368 ETEXI
371 .name = "loadvm",
372 .args_type = "name:s",
373 .params = "tag",
374 .help = "restore a VM snapshot from its tag",
375 .cmd = hmp_loadvm,
376 .command_completion = loadvm_completion,
379 STEXI
380 @item loadvm @var{tag}
381 @findex loadvm
382 Set the whole virtual machine to the snapshot identified by the tag
383 @var{tag}.
385 Since 4.0, loadvm stopped accepting snapshot id as parameter.
386 ETEXI
389 .name = "delvm",
390 .args_type = "name:s",
391 .params = "tag",
392 .help = "delete a VM snapshot from its tag",
393 .cmd = hmp_delvm,
394 .command_completion = delvm_completion,
397 STEXI
398 @item delvm @var{tag}
399 @findex delvm
400 Delete the snapshot identified by @var{tag}.
402 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
403 only @var{tag} as parameter.
404 ETEXI
407 .name = "singlestep",
408 .args_type = "option:s?",
409 .params = "[on|off]",
410 .help = "run emulation in singlestep mode or switch to normal mode",
411 .cmd = hmp_singlestep,
414 STEXI
415 @item singlestep [off]
416 @findex singlestep
417 Run the emulation in single step mode.
418 If called with option off, the emulation returns to normal mode.
419 ETEXI
422 .name = "stop",
423 .args_type = "",
424 .params = "",
425 .help = "stop emulation",
426 .cmd = hmp_stop,
429 STEXI
430 @item stop
431 @findex stop
432 Stop emulation.
433 ETEXI
436 .name = "c|cont",
437 .args_type = "",
438 .params = "",
439 .help = "resume emulation",
440 .cmd = hmp_cont,
443 STEXI
444 @item c or cont
445 @findex cont
446 Resume emulation.
447 ETEXI
450 .name = "system_wakeup",
451 .args_type = "",
452 .params = "",
453 .help = "wakeup guest from suspend",
454 .cmd = hmp_system_wakeup,
457 STEXI
458 @item system_wakeup
459 @findex system_wakeup
460 Wakeup guest from suspend.
461 ETEXI
464 .name = "gdbserver",
465 .args_type = "device:s?",
466 .params = "[device]",
467 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
468 .cmd = hmp_gdbserver,
471 STEXI
472 @item gdbserver [@var{port}]
473 @findex gdbserver
474 Start gdbserver session (default @var{port}=1234)
475 ETEXI
478 .name = "x",
479 .args_type = "fmt:/,addr:l",
480 .params = "/fmt addr",
481 .help = "virtual memory dump starting at 'addr'",
482 .cmd = hmp_memory_dump,
485 STEXI
486 @item x/fmt @var{addr}
487 @findex x
488 Virtual memory dump starting at @var{addr}.
489 ETEXI
492 .name = "xp",
493 .args_type = "fmt:/,addr:l",
494 .params = "/fmt addr",
495 .help = "physical memory dump starting at 'addr'",
496 .cmd = hmp_physical_memory_dump,
499 STEXI
500 @item xp /@var{fmt} @var{addr}
501 @findex xp
502 Physical memory dump starting at @var{addr}.
504 @var{fmt} is a format which tells the command how to format the
505 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
507 @table @var
508 @item count
509 is the number of items to be dumped.
511 @item format
512 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
513 c (char) or i (asm instruction).
515 @item size
516 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
517 @code{h} or @code{w} can be specified with the @code{i} format to
518 respectively select 16 or 32 bit code instruction size.
520 @end table
522 Examples:
523 @itemize
524 @item
525 Dump 10 instructions at the current instruction pointer:
526 @example
527 (qemu) x/10i $eip
528 0x90107063: ret
529 0x90107064: sti
530 0x90107065: lea 0x0(%esi,1),%esi
531 0x90107069: lea 0x0(%edi,1),%edi
532 0x90107070: ret
533 0x90107071: jmp 0x90107080
534 0x90107073: nop
535 0x90107074: nop
536 0x90107075: nop
537 0x90107076: nop
538 @end example
540 @item
541 Dump 80 16 bit values at the start of the video memory.
542 @smallexample
543 (qemu) xp/80hx 0xb8000
544 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
545 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
546 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
547 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
548 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
549 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
550 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
551 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
552 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
553 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
554 @end smallexample
555 @end itemize
556 ETEXI
559 .name = "gpa2hva",
560 .args_type = "addr:l",
561 .params = "addr",
562 .help = "print the host virtual address corresponding to a guest physical address",
563 .cmd = hmp_gpa2hva,
566 STEXI
567 @item gpa2hva @var{addr}
568 @findex gpa2hva
569 Print the host virtual address at which the guest's physical address @var{addr}
570 is mapped.
571 ETEXI
573 #ifdef CONFIG_LINUX
575 .name = "gpa2hpa",
576 .args_type = "addr:l",
577 .params = "addr",
578 .help = "print the host physical address corresponding to a guest physical address",
579 .cmd = hmp_gpa2hpa,
581 #endif
583 STEXI
584 @item gpa2hpa @var{addr}
585 @findex gpa2hpa
586 Print the host physical address at which the guest's physical address @var{addr}
587 is mapped.
588 ETEXI
591 .name = "p|print",
592 .args_type = "fmt:/,val:l",
593 .params = "/fmt expr",
594 .help = "print expression value (use $reg for CPU register access)",
595 .cmd = do_print,
598 STEXI
599 @item p or print/@var{fmt} @var{expr}
600 @findex print
601 Print expression value. Only the @var{format} part of @var{fmt} is
602 used.
603 ETEXI
606 .name = "i",
607 .args_type = "fmt:/,addr:i,index:i.",
608 .params = "/fmt addr",
609 .help = "I/O port read",
610 .cmd = hmp_ioport_read,
613 STEXI
614 @item i/@var{fmt} @var{addr} [.@var{index}]
615 @findex i
616 Read I/O port.
617 ETEXI
620 .name = "o",
621 .args_type = "fmt:/,addr:i,val:i",
622 .params = "/fmt addr value",
623 .help = "I/O port write",
624 .cmd = hmp_ioport_write,
627 STEXI
628 @item o/@var{fmt} @var{addr} @var{val}
629 @findex o
630 Write to I/O port.
631 ETEXI
634 .name = "sendkey",
635 .args_type = "keys:s,hold-time:i?",
636 .params = "keys [hold_ms]",
637 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
638 .cmd = hmp_sendkey,
639 .command_completion = sendkey_completion,
642 STEXI
643 @item sendkey @var{keys}
644 @findex sendkey
645 Send @var{keys} to the guest. @var{keys} could be the name of the
646 key or the raw value in hexadecimal format. Use @code{-} to press
647 several keys simultaneously. Example:
648 @example
649 sendkey ctrl-alt-f1
650 @end example
652 This command is useful to send keys that your graphical user interface
653 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
654 ETEXI
656 .name = "sync-profile",
657 .args_type = "op:s?",
658 .params = "[on|off|reset]",
659 .help = "enable, disable or reset synchronization profiling. "
660 "With no arguments, prints whether profiling is on or off.",
661 .cmd = hmp_sync_profile,
664 STEXI
665 @item sync-profile [on|off|reset]
666 @findex sync-profile
667 Enable, disable or reset synchronization profiling. With no arguments, prints
668 whether profiling is on or off.
669 ETEXI
672 .name = "system_reset",
673 .args_type = "",
674 .params = "",
675 .help = "reset the system",
676 .cmd = hmp_system_reset,
679 STEXI
680 @item system_reset
681 @findex system_reset
682 Reset the system.
683 ETEXI
686 .name = "system_powerdown",
687 .args_type = "",
688 .params = "",
689 .help = "send system power down event",
690 .cmd = hmp_system_powerdown,
693 STEXI
694 @item system_powerdown
695 @findex system_powerdown
696 Power down the system (if supported).
697 ETEXI
700 .name = "sum",
701 .args_type = "start:i,size:i",
702 .params = "addr size",
703 .help = "compute the checksum of a memory region",
704 .cmd = hmp_sum,
707 STEXI
708 @item sum @var{addr} @var{size}
709 @findex sum
710 Compute the checksum of a memory region.
711 ETEXI
714 .name = "device_add",
715 .args_type = "device:O",
716 .params = "driver[,prop=value][,...]",
717 .help = "add device, like -device on the command line",
718 .cmd = hmp_device_add,
719 .command_completion = device_add_completion,
722 STEXI
723 @item device_add @var{config}
724 @findex device_add
725 Add device.
726 ETEXI
729 .name = "device_del",
730 .args_type = "id:s",
731 .params = "device",
732 .help = "remove device",
733 .cmd = hmp_device_del,
734 .command_completion = device_del_completion,
737 STEXI
738 @item device_del @var{id}
739 @findex device_del
740 Remove device @var{id}. @var{id} may be a short ID
741 or a QOM object path.
742 ETEXI
745 .name = "cpu",
746 .args_type = "index:i",
747 .params = "index",
748 .help = "set the default CPU",
749 .cmd = hmp_cpu,
752 STEXI
753 @item cpu @var{index}
754 @findex cpu
755 Set the default CPU.
756 ETEXI
759 .name = "mouse_move",
760 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
761 .params = "dx dy [dz]",
762 .help = "send mouse move events",
763 .cmd = hmp_mouse_move,
766 STEXI
767 @item mouse_move @var{dx} @var{dy} [@var{dz}]
768 @findex mouse_move
769 Move the active mouse to the specified coordinates @var{dx} @var{dy}
770 with optional scroll axis @var{dz}.
771 ETEXI
774 .name = "mouse_button",
775 .args_type = "button_state:i",
776 .params = "state",
777 .help = "change mouse button state (1=L, 2=M, 4=R)",
778 .cmd = hmp_mouse_button,
781 STEXI
782 @item mouse_button @var{val}
783 @findex mouse_button
784 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
785 ETEXI
788 .name = "mouse_set",
789 .args_type = "index:i",
790 .params = "index",
791 .help = "set which mouse device receives events",
792 .cmd = hmp_mouse_set,
795 STEXI
796 @item mouse_set @var{index}
797 @findex mouse_set
798 Set which mouse device receives events at given @var{index}, index
799 can be obtained with
800 @example
801 info mice
802 @end example
803 ETEXI
806 .name = "wavcapture",
807 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
808 .params = "path [frequency [bits [channels]]]",
809 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
810 .cmd = hmp_wavcapture,
812 STEXI
813 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
814 @findex wavcapture
815 Capture audio into @var{filename}. Using sample rate @var{frequency}
816 bits per sample @var{bits} and number of channels @var{channels}.
818 Defaults:
819 @itemize @minus
820 @item Sample rate = 44100 Hz - CD quality
821 @item Bits = 16
822 @item Number of channels = 2 - Stereo
823 @end itemize
824 ETEXI
827 .name = "stopcapture",
828 .args_type = "n:i",
829 .params = "capture index",
830 .help = "stop capture",
831 .cmd = hmp_stopcapture,
833 STEXI
834 @item stopcapture @var{index}
835 @findex stopcapture
836 Stop capture with a given @var{index}, index can be obtained with
837 @example
838 info capture
839 @end example
840 ETEXI
843 .name = "memsave",
844 .args_type = "val:l,size:i,filename:s",
845 .params = "addr size file",
846 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
847 .cmd = hmp_memsave,
850 STEXI
851 @item memsave @var{addr} @var{size} @var{file}
852 @findex memsave
853 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
854 ETEXI
857 .name = "pmemsave",
858 .args_type = "val:l,size:i,filename:s",
859 .params = "addr size file",
860 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
861 .cmd = hmp_pmemsave,
864 STEXI
865 @item pmemsave @var{addr} @var{size} @var{file}
866 @findex pmemsave
867 save to disk physical memory dump starting at @var{addr} of size @var{size}.
868 ETEXI
871 .name = "boot_set",
872 .args_type = "bootdevice:s",
873 .params = "bootdevice",
874 .help = "define new values for the boot device list",
875 .cmd = hmp_boot_set,
878 STEXI
879 @item boot_set @var{bootdevicelist}
880 @findex boot_set
881 Define new values for the boot device list. Those values will override
882 the values specified on the command line through the @code{-boot} option.
884 The values that can be specified here depend on the machine type, but are
885 the same that can be specified in the @code{-boot} command line option.
886 ETEXI
889 .name = "nmi",
890 .args_type = "",
891 .params = "",
892 .help = "inject an NMI",
893 .cmd = hmp_nmi,
895 STEXI
896 @item nmi @var{cpu}
897 @findex nmi
898 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
900 ETEXI
903 .name = "ringbuf_write",
904 .args_type = "device:s,data:s",
905 .params = "device data",
906 .help = "Write to a ring buffer character device",
907 .cmd = hmp_ringbuf_write,
908 .command_completion = ringbuf_write_completion,
911 STEXI
912 @item ringbuf_write @var{device} @var{data}
913 @findex ringbuf_write
914 Write @var{data} to ring buffer character device @var{device}.
915 @var{data} must be a UTF-8 string.
917 ETEXI
920 .name = "ringbuf_read",
921 .args_type = "device:s,size:i",
922 .params = "device size",
923 .help = "Read from a ring buffer character device",
924 .cmd = hmp_ringbuf_read,
925 .command_completion = ringbuf_write_completion,
928 STEXI
929 @item ringbuf_read @var{device}
930 @findex ringbuf_read
931 Read and print up to @var{size} bytes from ring buffer character
932 device @var{device}.
933 Certain non-printable characters are printed \uXXXX, where XXXX is the
934 character code in hexadecimal. Character \ is printed \\.
935 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
936 NUL characters, after the ring buffer lost data, and when reading
937 stops because the size limit is reached.
939 ETEXI
942 .name = "announce_self",
943 .args_type = "",
944 .params = "",
945 .help = "Trigger GARP/RARP announcements",
946 .cmd = hmp_announce_self,
949 STEXI
950 @item announce_self
951 @findex announce_self
952 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating the
953 network infrastructure after a reconfiguration or some forms of migration.
954 The timings of the round are set by the migration announce parameters.
955 ETEXI
958 .name = "migrate",
959 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
960 .params = "[-d] [-b] [-i] [-r] uri",
961 .help = "migrate to URI (using -d to not wait for completion)"
962 "\n\t\t\t -b for migration without shared storage with"
963 " full copy of disk\n\t\t\t -i for migration without "
964 "shared storage with incremental copy of disk "
965 "(base image shared between src and destination)"
966 "\n\t\t\t -r to resume a paused migration",
967 .cmd = hmp_migrate,
971 STEXI
972 @item migrate [-d] [-b] [-i] @var{uri}
973 @findex migrate
974 Migrate to @var{uri} (using -d to not wait for completion).
975 -b for migration with full copy of disk
976 -i for migration with incremental copy of disk (base image is shared)
977 ETEXI
980 .name = "migrate_cancel",
981 .args_type = "",
982 .params = "",
983 .help = "cancel the current VM migration",
984 .cmd = hmp_migrate_cancel,
987 STEXI
988 @item migrate_cancel
989 @findex migrate_cancel
990 Cancel the current VM migration.
991 ETEXI
994 .name = "migrate_continue",
995 .args_type = "state:s",
996 .params = "state",
997 .help = "Continue migration from the given paused state",
998 .cmd = hmp_migrate_continue,
1000 STEXI
1001 @item migrate_continue @var{state}
1002 @findex migrate_continue
1003 Continue migration from the paused state @var{state}
1004 ETEXI
1007 .name = "migrate_incoming",
1008 .args_type = "uri:s",
1009 .params = "uri",
1010 .help = "Continue an incoming migration from an -incoming defer",
1011 .cmd = hmp_migrate_incoming,
1014 STEXI
1015 @item migrate_incoming @var{uri}
1016 @findex migrate_incoming
1017 Continue an incoming migration using the @var{uri} (that has the same syntax
1018 as the -incoming option).
1019 ETEXI
1022 .name = "migrate_recover",
1023 .args_type = "uri:s",
1024 .params = "uri",
1025 .help = "Continue a paused incoming postcopy migration",
1026 .cmd = hmp_migrate_recover,
1029 STEXI
1030 @item migrate_recover @var{uri}
1031 @findex migrate_recover
1032 Continue a paused incoming postcopy migration using the @var{uri}.
1033 ETEXI
1036 .name = "migrate_pause",
1037 .args_type = "",
1038 .params = "",
1039 .help = "Pause an ongoing migration (postcopy-only)",
1040 .cmd = hmp_migrate_pause,
1043 STEXI
1044 @item migrate_pause
1045 @findex migrate_pause
1046 Pause an ongoing migration. Currently it only supports postcopy.
1047 ETEXI
1050 .name = "migrate_set_cache_size",
1051 .args_type = "value:o",
1052 .params = "value",
1053 .help = "set cache size (in bytes) for XBZRLE migrations,"
1054 "the cache size will be rounded down to the nearest "
1055 "power of 2.\n"
1056 "The cache size affects the number of cache misses."
1057 "In case of a high cache miss ratio you need to increase"
1058 " the cache size",
1059 .cmd = hmp_migrate_set_cache_size,
1062 STEXI
1063 @item migrate_set_cache_size @var{value}
1064 @findex migrate_set_cache_size
1065 Set cache size to @var{value} (in bytes) for xbzrle migrations.
1066 ETEXI
1069 .name = "migrate_set_speed",
1070 .args_type = "value:o",
1071 .params = "value",
1072 .help = "set maximum speed (in bytes) for migrations. "
1073 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1074 .cmd = hmp_migrate_set_speed,
1077 STEXI
1078 @item migrate_set_speed @var{value}
1079 @findex migrate_set_speed
1080 Set maximum speed to @var{value} (in bytes) for migrations.
1081 ETEXI
1084 .name = "migrate_set_downtime",
1085 .args_type = "value:T",
1086 .params = "value",
1087 .help = "set maximum tolerated downtime (in seconds) for migrations",
1088 .cmd = hmp_migrate_set_downtime,
1091 STEXI
1092 @item migrate_set_downtime @var{second}
1093 @findex migrate_set_downtime
1094 Set maximum tolerated downtime (in seconds) for migration.
1095 ETEXI
1098 .name = "migrate_set_capability",
1099 .args_type = "capability:s,state:b",
1100 .params = "capability state",
1101 .help = "Enable/Disable the usage of a capability for migration",
1102 .cmd = hmp_migrate_set_capability,
1103 .command_completion = migrate_set_capability_completion,
1106 STEXI
1107 @item migrate_set_capability @var{capability} @var{state}
1108 @findex migrate_set_capability
1109 Enable/Disable the usage of a capability @var{capability} for migration.
1110 ETEXI
1113 .name = "migrate_set_parameter",
1114 .args_type = "parameter:s,value:s",
1115 .params = "parameter value",
1116 .help = "Set the parameter for migration",
1117 .cmd = hmp_migrate_set_parameter,
1118 .command_completion = migrate_set_parameter_completion,
1121 STEXI
1122 @item migrate_set_parameter @var{parameter} @var{value}
1123 @findex migrate_set_parameter
1124 Set the parameter @var{parameter} for migration.
1125 ETEXI
1128 .name = "migrate_start_postcopy",
1129 .args_type = "",
1130 .params = "",
1131 .help = "Followup to a migration command to switch the migration"
1132 " to postcopy mode. The postcopy-ram capability must "
1133 "be set on both source and destination before the "
1134 "original migration command .",
1135 .cmd = hmp_migrate_start_postcopy,
1138 STEXI
1139 @item migrate_start_postcopy
1140 @findex migrate_start_postcopy
1141 Switch in-progress migration to postcopy mode. Ignored after the end of
1142 migration (or once already in postcopy).
1143 ETEXI
1146 .name = "x_colo_lost_heartbeat",
1147 .args_type = "",
1148 .params = "",
1149 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1150 "a failover or takeover is needed.",
1151 .cmd = hmp_x_colo_lost_heartbeat,
1154 STEXI
1155 @item x_colo_lost_heartbeat
1156 @findex x_colo_lost_heartbeat
1157 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1158 ETEXI
1161 .name = "client_migrate_info",
1162 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1163 .params = "protocol hostname port tls-port cert-subject",
1164 .help = "set migration information for remote display",
1165 .cmd = hmp_client_migrate_info,
1168 STEXI
1169 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1170 @findex client_migrate_info
1171 Set migration information for remote display. This makes the server
1172 ask the client to automatically reconnect using the new parameters
1173 once migration finished successfully. Only implemented for SPICE.
1174 ETEXI
1177 .name = "dump-guest-memory",
1178 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1179 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1180 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1181 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1182 "-d: return immediately (do not wait for completion).\n\t\t\t"
1183 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1184 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1185 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1186 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1187 " for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1188 "begin: the starting physical address.\n\t\t\t"
1189 "length: the memory size, in bytes.",
1190 .cmd = hmp_dump_guest_memory,
1193 STEXI
1194 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1195 @item dump-guest-memory [-z|-l|-s|-w] @var{filename}
1196 @findex dump-guest-memory
1197 Dump guest memory to @var{protocol}. The file can be processed with crash or
1198 gdb. Without -z|-l|-s|-w, the dump format is ELF.
1199 -p: do paging to get guest's memory mapping.
1200 -z: dump in kdump-compressed format, with zlib compression.
1201 -l: dump in kdump-compressed format, with lzo compression.
1202 -s: dump in kdump-compressed format, with snappy compression.
1203 -w: dump in Windows crashdump format (can be used instead of ELF-dump converting),
1204 for Windows x64 guests with vmcoreinfo driver only
1205 filename: dump file name.
1206 begin: the starting physical address. It's optional, and should be
1207 specified together with length.
1208 length: the memory size, in bytes. It's optional, and should be specified
1209 together with begin.
1210 ETEXI
1212 #if defined(TARGET_S390X)
1214 .name = "dump-skeys",
1215 .args_type = "filename:F",
1216 .params = "",
1217 .help = "Save guest storage keys into file 'filename'.\n",
1218 .cmd = hmp_dump_skeys,
1220 #endif
1222 STEXI
1223 @item dump-skeys @var{filename}
1224 @findex dump-skeys
1225 Save guest storage keys to a file.
1226 ETEXI
1228 #if defined(TARGET_S390X)
1230 .name = "migration_mode",
1231 .args_type = "mode:i",
1232 .params = "mode",
1233 .help = "Enables or disables migration mode\n",
1234 .cmd = hmp_migrationmode,
1236 #endif
1238 STEXI
1239 @item migration_mode @var{mode}
1240 @findex migration_mode
1241 Enables or disables migration mode.
1242 ETEXI
1245 .name = "snapshot_blkdev",
1246 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1247 .params = "[-n] device [new-image-file] [format]",
1248 .help = "initiates a live snapshot\n\t\t\t"
1249 "of device. If a new image file is specified, the\n\t\t\t"
1250 "new image file will become the new root image.\n\t\t\t"
1251 "If format is specified, the snapshot file will\n\t\t\t"
1252 "be created in that format.\n\t\t\t"
1253 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1254 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1255 "recreating it from scratch.",
1256 .cmd = hmp_snapshot_blkdev,
1259 STEXI
1260 @item snapshot_blkdev
1261 @findex snapshot_blkdev
1262 Snapshot device, using snapshot file as target if provided
1263 ETEXI
1266 .name = "snapshot_blkdev_internal",
1267 .args_type = "device:B,name:s",
1268 .params = "device name",
1269 .help = "take an internal snapshot of device.\n\t\t\t"
1270 "The format of the image used by device must\n\t\t\t"
1271 "support it, such as qcow2.\n\t\t\t",
1272 .cmd = hmp_snapshot_blkdev_internal,
1275 STEXI
1276 @item snapshot_blkdev_internal
1277 @findex snapshot_blkdev_internal
1278 Take an internal snapshot on device if it support
1279 ETEXI
1282 .name = "snapshot_delete_blkdev_internal",
1283 .args_type = "device:B,name:s,id:s?",
1284 .params = "device name [id]",
1285 .help = "delete an internal snapshot of device.\n\t\t\t"
1286 "If id is specified, qemu will try delete\n\t\t\t"
1287 "the snapshot matching both id and name.\n\t\t\t"
1288 "The format of the image used by device must\n\t\t\t"
1289 "support it, such as qcow2.\n\t\t\t",
1290 .cmd = hmp_snapshot_delete_blkdev_internal,
1293 STEXI
1294 @item snapshot_delete_blkdev_internal
1295 @findex snapshot_delete_blkdev_internal
1296 Delete an internal snapshot on device if it support
1297 ETEXI
1300 .name = "drive_mirror",
1301 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1302 .params = "[-n] [-f] device target [format]",
1303 .help = "initiates live storage\n\t\t\t"
1304 "migration for a device. The device's contents are\n\t\t\t"
1305 "copied to the new image file, including data that\n\t\t\t"
1306 "is written after the command is started.\n\t\t\t"
1307 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1308 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1309 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1310 "so that the result does not need a backing file.\n\t\t\t",
1311 .cmd = hmp_drive_mirror,
1313 STEXI
1314 @item drive_mirror
1315 @findex drive_mirror
1316 Start mirroring a block device's writes to a new destination,
1317 using the specified target.
1318 ETEXI
1321 .name = "drive_backup",
1322 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1323 .params = "[-n] [-f] [-c] device target [format]",
1324 .help = "initiates a point-in-time\n\t\t\t"
1325 "copy for a device. The device's contents are\n\t\t\t"
1326 "copied to the new image file, excluding data that\n\t\t\t"
1327 "is written after the command is started.\n\t\t\t"
1328 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1329 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1330 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1331 "so that the result does not need a backing file.\n\t\t\t"
1332 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1333 "(if the target format supports it).\n\t\t\t",
1334 .cmd = hmp_drive_backup,
1336 STEXI
1337 @item drive_backup
1338 @findex drive_backup
1339 Start a point-in-time copy of a block device to a specificed target.
1340 ETEXI
1343 .name = "drive_add",
1344 .args_type = "node:-n,pci_addr:s,opts:s",
1345 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1346 "[file=file][,if=type][,bus=n]\n"
1347 "[,unit=m][,media=d][,index=i]\n"
1348 "[,snapshot=on|off][,cache=on|off]\n"
1349 "[,readonly=on|off][,copy-on-read=on|off]",
1350 .help = "add drive to PCI storage controller",
1351 .cmd = hmp_drive_add,
1354 STEXI
1355 @item drive_add
1356 @findex drive_add
1357 Add drive to PCI storage controller.
1358 ETEXI
1361 .name = "pcie_aer_inject_error",
1362 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1363 "id:s,error_status:s,"
1364 "header0:i?,header1:i?,header2:i?,header3:i?,"
1365 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1366 .params = "[-a] [-c] id "
1367 "<error_status> [<tlp header> [<tlp header prefix>]]",
1368 .help = "inject pcie aer error\n\t\t\t"
1369 " -a for advisory non fatal error\n\t\t\t"
1370 " -c for correctable error\n\t\t\t"
1371 "<id> = qdev device id\n\t\t\t"
1372 "<error_status> = error string or 32bit\n\t\t\t"
1373 "<tlb header> = 32bit x 4\n\t\t\t"
1374 "<tlb header prefix> = 32bit x 4",
1375 .cmd = hmp_pcie_aer_inject_error,
1378 STEXI
1379 @item pcie_aer_inject_error
1380 @findex pcie_aer_inject_error
1381 Inject PCIe AER error
1382 ETEXI
1385 .name = "netdev_add",
1386 .args_type = "netdev:O",
1387 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1388 .help = "add host network device",
1389 .cmd = hmp_netdev_add,
1390 .command_completion = netdev_add_completion,
1393 STEXI
1394 @item netdev_add
1395 @findex netdev_add
1396 Add host network device.
1397 ETEXI
1400 .name = "netdev_del",
1401 .args_type = "id:s",
1402 .params = "id",
1403 .help = "remove host network device",
1404 .cmd = hmp_netdev_del,
1405 .command_completion = netdev_del_completion,
1408 STEXI
1409 @item netdev_del
1410 @findex netdev_del
1411 Remove host network device.
1412 ETEXI
1415 .name = "object_add",
1416 .args_type = "object:O",
1417 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1418 .help = "create QOM object",
1419 .cmd = hmp_object_add,
1420 .command_completion = object_add_completion,
1423 STEXI
1424 @item object_add
1425 @findex object_add
1426 Create QOM object.
1427 ETEXI
1430 .name = "object_del",
1431 .args_type = "id:s",
1432 .params = "id",
1433 .help = "destroy QOM object",
1434 .cmd = hmp_object_del,
1435 .command_completion = object_del_completion,
1438 STEXI
1439 @item object_del
1440 @findex object_del
1441 Destroy QOM object.
1442 ETEXI
1444 #ifdef CONFIG_SLIRP
1446 .name = "hostfwd_add",
1447 .args_type = "arg1:s,arg2:s?,arg3:s?",
1448 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1449 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1450 .cmd = hmp_hostfwd_add,
1452 #endif
1453 STEXI
1454 @item hostfwd_add
1455 @findex hostfwd_add
1456 Redirect TCP or UDP connections from host to guest (requires -net user).
1457 ETEXI
1459 #ifdef CONFIG_SLIRP
1461 .name = "hostfwd_remove",
1462 .args_type = "arg1:s,arg2:s?,arg3:s?",
1463 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1464 .help = "remove host-to-guest TCP or UDP redirection",
1465 .cmd = hmp_hostfwd_remove,
1468 #endif
1469 STEXI
1470 @item hostfwd_remove
1471 @findex hostfwd_remove
1472 Remove host-to-guest TCP or UDP redirection.
1473 ETEXI
1476 .name = "balloon",
1477 .args_type = "value:M",
1478 .params = "target",
1479 .help = "request VM to change its memory allocation (in MB)",
1480 .cmd = hmp_balloon,
1483 STEXI
1484 @item balloon @var{value}
1485 @findex balloon
1486 Request VM to change its memory allocation to @var{value} (in MB).
1487 ETEXI
1490 .name = "set_link",
1491 .args_type = "name:s,up:b",
1492 .params = "name on|off",
1493 .help = "change the link status of a network adapter",
1494 .cmd = hmp_set_link,
1495 .command_completion = set_link_completion,
1498 STEXI
1499 @item set_link @var{name} [on|off]
1500 @findex set_link
1501 Switch link @var{name} on (i.e. up) or off (i.e. down).
1502 ETEXI
1505 .name = "watchdog_action",
1506 .args_type = "action:s",
1507 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1508 .help = "change watchdog action",
1509 .cmd = hmp_watchdog_action,
1510 .command_completion = watchdog_action_completion,
1513 STEXI
1514 @item watchdog_action
1515 @findex watchdog_action
1516 Change watchdog action.
1517 ETEXI
1520 .name = "acl_show",
1521 .args_type = "aclname:s",
1522 .params = "aclname",
1523 .help = "list rules in the access control list",
1524 .cmd = hmp_acl_show,
1527 STEXI
1528 @item acl_show @var{aclname}
1529 @findex acl_show
1530 List all the matching rules in the access control list, and the default
1531 policy. There are currently two named access control lists,
1532 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1533 certificate distinguished name, and SASL username respectively.
1534 ETEXI
1537 .name = "acl_policy",
1538 .args_type = "aclname:s,policy:s",
1539 .params = "aclname allow|deny",
1540 .help = "set default access control list policy",
1541 .cmd = hmp_acl_policy,
1544 STEXI
1545 @item acl_policy @var{aclname} @code{allow|deny}
1546 @findex acl_policy
1547 Set the default access control list policy, used in the event that
1548 none of the explicit rules match. The default policy at startup is
1549 always @code{deny}.
1550 ETEXI
1553 .name = "acl_add",
1554 .args_type = "aclname:s,match:s,policy:s,index:i?",
1555 .params = "aclname match allow|deny [index]",
1556 .help = "add a match rule to the access control list",
1557 .cmd = hmp_acl_add,
1560 STEXI
1561 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1562 @findex acl_add
1563 Add a match rule to the access control list, allowing or denying access.
1564 The match will normally be an exact username or x509 distinguished name,
1565 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1566 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1567 normally be appended to the end of the ACL, but can be inserted
1568 earlier in the list if the optional @var{index} parameter is supplied.
1569 ETEXI
1572 .name = "acl_remove",
1573 .args_type = "aclname:s,match:s",
1574 .params = "aclname match",
1575 .help = "remove a match rule from the access control list",
1576 .cmd = hmp_acl_remove,
1579 STEXI
1580 @item acl_remove @var{aclname} @var{match}
1581 @findex acl_remove
1582 Remove the specified match rule from the access control list.
1583 ETEXI
1586 .name = "acl_reset",
1587 .args_type = "aclname:s",
1588 .params = "aclname",
1589 .help = "reset the access control list",
1590 .cmd = hmp_acl_reset,
1593 STEXI
1594 @item acl_reset @var{aclname}
1595 @findex acl_reset
1596 Remove all matches from the access control list, and set the default
1597 policy back to @code{deny}.
1598 ETEXI
1601 .name = "nbd_server_start",
1602 .args_type = "all:-a,writable:-w,uri:s",
1603 .params = "nbd_server_start [-a] [-w] host:port",
1604 .help = "serve block devices on the given host and port",
1605 .cmd = hmp_nbd_server_start,
1607 STEXI
1608 @item nbd_server_start @var{host}:@var{port}
1609 @findex nbd_server_start
1610 Start an NBD server on the given host and/or port. If the @option{-a}
1611 option is included, all of the virtual machine's block devices that
1612 have an inserted media on them are automatically exported; in this case,
1613 the @option{-w} option makes the devices writable too.
1614 ETEXI
1617 .name = "nbd_server_add",
1618 .args_type = "writable:-w,device:B,name:s?",
1619 .params = "nbd_server_add [-w] device [name]",
1620 .help = "export a block device via NBD",
1621 .cmd = hmp_nbd_server_add,
1623 STEXI
1624 @item nbd_server_add @var{device} [ @var{name} ]
1625 @findex nbd_server_add
1626 Export a block device through QEMU's NBD server, which must be started
1627 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1628 exported device writable too. The export name is controlled by @var{name},
1629 defaulting to @var{device}.
1630 ETEXI
1633 .name = "nbd_server_remove",
1634 .args_type = "force:-f,name:s",
1635 .params = "nbd_server_remove [-f] name",
1636 .help = "remove an export previously exposed via NBD",
1637 .cmd = hmp_nbd_server_remove,
1639 STEXI
1640 @item nbd_server_remove [-f] @var{name}
1641 @findex nbd_server_remove
1642 Stop exporting a block device through QEMU's NBD server, which was
1643 previously started with @command{nbd_server_add}. The @option{-f}
1644 option forces the server to drop the export immediately even if
1645 clients are connected; otherwise the command fails unless there are no
1646 clients.
1647 ETEXI
1650 .name = "nbd_server_stop",
1651 .args_type = "",
1652 .params = "nbd_server_stop",
1653 .help = "stop serving block devices using the NBD protocol",
1654 .cmd = hmp_nbd_server_stop,
1656 STEXI
1657 @item nbd_server_stop
1658 @findex nbd_server_stop
1659 Stop the QEMU embedded NBD server.
1660 ETEXI
1663 #if defined(TARGET_I386)
1666 .name = "mce",
1667 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1668 .params = "[-b] cpu bank status mcgstatus addr misc",
1669 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1670 .cmd = hmp_mce,
1673 #endif
1674 STEXI
1675 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1676 @findex mce (x86)
1677 Inject an MCE on the given CPU (x86 only).
1678 ETEXI
1681 .name = "getfd",
1682 .args_type = "fdname:s",
1683 .params = "getfd name",
1684 .help = "receive a file descriptor via SCM rights and assign it a name",
1685 .cmd = hmp_getfd,
1688 STEXI
1689 @item getfd @var{fdname}
1690 @findex getfd
1691 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1692 mechanism on unix sockets, it is stored using the name @var{fdname} for
1693 later use by other monitor commands.
1694 ETEXI
1697 .name = "closefd",
1698 .args_type = "fdname:s",
1699 .params = "closefd name",
1700 .help = "close a file descriptor previously passed via SCM rights",
1701 .cmd = hmp_closefd,
1704 STEXI
1705 @item closefd @var{fdname}
1706 @findex closefd
1707 Close the file descriptor previously assigned to @var{fdname} using the
1708 @code{getfd} command. This is only needed if the file descriptor was never
1709 used by another monitor command.
1710 ETEXI
1713 .name = "block_passwd",
1714 .args_type = "device:B,password:s",
1715 .params = "block_passwd device password",
1716 .help = "set the password of encrypted block devices",
1717 .cmd = hmp_block_passwd,
1720 STEXI
1721 @item block_passwd @var{device} @var{password}
1722 @findex block_passwd
1723 Set the encrypted device @var{device} password to @var{password}
1725 This command is now obsolete and will always return an error since 2.10
1726 ETEXI
1729 .name = "block_set_io_throttle",
1730 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1731 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1732 .help = "change I/O throttle limits for a block drive",
1733 .cmd = hmp_block_set_io_throttle,
1736 STEXI
1737 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1738 @findex block_set_io_throttle
1739 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}.
1740 @var{device} can be a block device name, a qdev ID or a QOM path.
1741 ETEXI
1744 .name = "set_password",
1745 .args_type = "protocol:s,password:s,connected:s?",
1746 .params = "protocol password action-if-connected",
1747 .help = "set spice/vnc password",
1748 .cmd = hmp_set_password,
1751 STEXI
1752 @item set_password [ vnc | spice ] password [ action-if-connected ]
1753 @findex set_password
1754 Change spice/vnc password. Use zero to make the password stay valid
1755 forever. @var{action-if-connected} specifies what should happen in
1756 case a connection is established: @var{fail} makes the password change
1757 fail. @var{disconnect} changes the password and disconnects the
1758 client. @var{keep} changes the password and keeps the connection up.
1759 @var{keep} is the default.
1760 ETEXI
1763 .name = "expire_password",
1764 .args_type = "protocol:s,time:s",
1765 .params = "protocol time",
1766 .help = "set spice/vnc password expire-time",
1767 .cmd = hmp_expire_password,
1770 STEXI
1771 @item expire_password [ vnc | spice ] expire-time
1772 @findex expire_password
1773 Specify when a password for spice/vnc becomes
1774 invalid. @var{expire-time} accepts:
1776 @table @var
1777 @item now
1778 Invalidate password instantly.
1780 @item never
1781 Password stays valid forever.
1783 @item +nsec
1784 Password stays valid for @var{nsec} seconds starting now.
1786 @item nsec
1787 Password is invalidated at the given time. @var{nsec} are the seconds
1788 passed since 1970, i.e. unix epoch.
1790 @end table
1791 ETEXI
1794 .name = "chardev-add",
1795 .args_type = "args:s",
1796 .params = "args",
1797 .help = "add chardev",
1798 .cmd = hmp_chardev_add,
1799 .command_completion = chardev_add_completion,
1802 STEXI
1803 @item chardev-add args
1804 @findex chardev-add
1805 chardev-add accepts the same parameters as the -chardev command line switch.
1807 ETEXI
1810 .name = "chardev-change",
1811 .args_type = "id:s,args:s",
1812 .params = "id args",
1813 .help = "change chardev",
1814 .cmd = hmp_chardev_change,
1817 STEXI
1818 @item chardev-change args
1819 @findex chardev-change
1820 chardev-change accepts existing chardev @var{id} and then the same arguments
1821 as the -chardev command line switch (except for "id").
1823 ETEXI
1826 .name = "chardev-remove",
1827 .args_type = "id:s",
1828 .params = "id",
1829 .help = "remove chardev",
1830 .cmd = hmp_chardev_remove,
1831 .command_completion = chardev_remove_completion,
1834 STEXI
1835 @item chardev-remove id
1836 @findex chardev-remove
1837 Removes the chardev @var{id}.
1839 ETEXI
1842 .name = "chardev-send-break",
1843 .args_type = "id:s",
1844 .params = "id",
1845 .help = "send a break on chardev",
1846 .cmd = hmp_chardev_send_break,
1847 .command_completion = chardev_remove_completion,
1850 STEXI
1851 @item chardev-send-break id
1852 @findex chardev-send-break
1853 Send a break on the chardev @var{id}.
1855 ETEXI
1858 .name = "qemu-io",
1859 .args_type = "device:B,command:s",
1860 .params = "[device] \"[command]\"",
1861 .help = "run a qemu-io command on a block device",
1862 .cmd = hmp_qemu_io,
1865 STEXI
1866 @item qemu-io @var{device} @var{command}
1867 @findex qemu-io
1868 Executes a qemu-io command on the given block device.
1870 ETEXI
1873 .name = "cpu-add",
1874 .args_type = "id:i",
1875 .params = "id",
1876 .help = "add cpu (deprecated, use device_add instead)",
1877 .cmd = hmp_cpu_add,
1880 STEXI
1881 @item cpu-add @var{id}
1882 @findex cpu-add
1883 Add CPU with id @var{id}. This command is deprecated, please
1884 +use @code{device_add} instead. For details, refer to
1885 'docs/cpu-hotplug.rst'.
1886 ETEXI
1889 .name = "qom-list",
1890 .args_type = "path:s?",
1891 .params = "path",
1892 .help = "list QOM properties",
1893 .cmd = hmp_qom_list,
1894 .flags = "p",
1897 STEXI
1898 @item qom-list [@var{path}]
1899 Print QOM properties of object at location @var{path}
1900 ETEXI
1903 .name = "qom-set",
1904 .args_type = "path:s,property:s,value:s",
1905 .params = "path property value",
1906 .help = "set QOM property",
1907 .cmd = hmp_qom_set,
1908 .flags = "p",
1911 STEXI
1912 @item qom-set @var{path} @var{property} @var{value}
1913 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1914 ETEXI
1917 .name = "info",
1918 .args_type = "item:s?",
1919 .params = "[subcommand]",
1920 .help = "show various information about the system state",
1921 .cmd = hmp_info_help,
1922 .sub_table = info_cmds,
1923 .flags = "p",
1926 STEXI
1927 @end table
1928 ETEXI