target/nios2: Update helper_eret for shadow registers
[qemu.git] / hmp-commands.hx
blob34947d6d20eddc20d4301f5972df99c3720d0b14
1 HXCOMM Use DEFHEADING() to define headings in both help text and rST.
2 HXCOMM Text between SRST and ERST is copied to the rST 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 rST and C.
10 .name = "help|?",
11 .args_type = "name:S?",
12 .params = "[cmd]",
13 .help = "show the help",
14 .cmd = do_help_cmd,
15 .flags = "p",
18 SRST
19 ``help`` or ``?`` [*cmd*]
20 Show the help for all commands or just for command *cmd*.
21 ERST
24 .name = "commit",
25 .args_type = "device:B",
26 .params = "device|all",
27 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
28 .cmd = hmp_commit,
31 SRST
32 ``commit``
33 Commit changes to the disk images (if -snapshot is used) or backing files.
34 If the backing file is smaller than the snapshot, then the backing file
35 will be resized to be the same size as the snapshot. If the snapshot is
36 smaller than the backing file, the backing file will not be truncated.
37 If you want the backing file to match the size of the smaller snapshot,
38 you can safely truncate it yourself once the commit operation successfully
39 completes.
40 ERST
43 .name = "quit|q",
44 .args_type = "",
45 .params = "",
46 .help = "quit the emulator",
47 .cmd = hmp_quit,
48 .flags = "p",
51 SRST
52 ``quit`` or ``q``
53 Quit the emulator.
54 ERST
57 .name = "exit_preconfig",
58 .args_type = "",
59 .params = "",
60 .help = "exit the preconfig state",
61 .cmd = hmp_exit_preconfig,
62 .flags = "p",
65 SRST
66 ``exit_preconfig``
67 This command makes QEMU exit the preconfig state and proceed with
68 VM initialization using configuration data provided on the command line
69 and via the QMP monitor during the preconfig state. The command is only
70 available during the preconfig state (i.e. when the --preconfig command
71 line option was in use).
72 ERST
75 .name = "block_resize",
76 .args_type = "device:B,size:o",
77 .params = "device size",
78 .help = "resize a block image",
79 .cmd = hmp_block_resize,
80 .coroutine = true,
83 SRST
84 ``block_resize``
85 Resize a block image while a guest is running. Usually requires guest
86 action to see the updated size. Resize to a lower size is supported,
87 but should be used with extreme caution. Note that this command only
88 resizes image files, it can not resize block devices like LVM volumes.
89 ERST
92 .name = "block_stream",
93 .args_type = "device:B,speed:o?,base:s?",
94 .params = "device [speed [base]]",
95 .help = "copy data from a backing file into a block device",
96 .cmd = hmp_block_stream,
99 SRST
100 ``block_stream``
101 Copy data from a backing file into a block device.
102 ERST
105 .name = "block_job_set_speed",
106 .args_type = "device:B,speed:o",
107 .params = "device speed",
108 .help = "set maximum speed for a background block operation",
109 .cmd = hmp_block_job_set_speed,
112 SRST
113 ``block_job_set_speed``
114 Set maximum speed for a background block operation.
115 ERST
118 .name = "block_job_cancel",
119 .args_type = "force:-f,device:B",
120 .params = "[-f] device",
121 .help = "stop an active background block operation (use -f"
122 "\n\t\t\t if you want to abort the operation immediately"
123 "\n\t\t\t instead of keep running until data is in sync)",
124 .cmd = hmp_block_job_cancel,
127 SRST
128 ``block_job_cancel``
129 Stop an active background block operation (streaming, mirroring).
130 ERST
133 .name = "block_job_complete",
134 .args_type = "device:B",
135 .params = "device",
136 .help = "stop an active background block operation",
137 .cmd = hmp_block_job_complete,
140 SRST
141 ``block_job_complete``
142 Manually trigger completion of an active background block operation.
143 For mirroring, this will switch the device to the destination path.
144 ERST
147 .name = "block_job_pause",
148 .args_type = "device:B",
149 .params = "device",
150 .help = "pause an active background block operation",
151 .cmd = hmp_block_job_pause,
154 SRST
155 ``block_job_pause``
156 Pause an active block streaming operation.
157 ERST
160 .name = "block_job_resume",
161 .args_type = "device:B",
162 .params = "device",
163 .help = "resume a paused background block operation",
164 .cmd = hmp_block_job_resume,
167 SRST
168 ``block_job_resume``
169 Resume a paused block streaming operation.
170 ERST
173 .name = "eject",
174 .args_type = "force:-f,device:B",
175 .params = "[-f] device",
176 .help = "eject a removable medium (use -f to force it)",
177 .cmd = hmp_eject,
180 SRST
181 ``eject [-f]`` *device*
182 Eject a removable medium (use -f to force it).
183 ERST
186 .name = "drive_del",
187 .args_type = "id:B",
188 .params = "device",
189 .help = "remove host block device",
190 .cmd = hmp_drive_del,
193 SRST
194 ``drive_del`` *device*
195 Remove host block device. The result is that guest generated IO is no longer
196 submitted against the host device underlying the disk. Once a drive has
197 been deleted, the QEMU Block layer returns -EIO which results in IO
198 errors in the guest for applications that are reading/writing to the device.
199 These errors are always reported to the guest, regardless of the drive's error
200 actions (drive options rerror, werror).
201 ERST
204 .name = "change",
205 .args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
206 .params = "device [-f] filename [format [read-only-mode]]",
207 .help = "change a removable medium, optional format, use -f to force the operation",
208 .cmd = hmp_change,
211 SRST
212 ``change`` *device* *setting*
213 Change the configuration of a device.
215 ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
216 Change the medium for a removable disk device to point to *filename*. eg::
218 (qemu) change ide1-cd0 /path/to/some.iso
220 ``-f``
221 forces the operation even if the guest has locked the tray.
223 *format* is optional.
225 *read-only-mode* may be used to change the read-only status of the device.
226 It accepts the following values:
228 retain
229 Retains the current status; this is the default.
231 read-only
232 Makes the device read-only.
234 read-write
235 Makes the device writable.
237 ``change vnc password`` [*password*]
239 Change the password associated with the VNC server. If the new password
240 is not supplied, the monitor will prompt for it to be entered. VNC
241 passwords are only significant up to 8 letters. eg::
243 (qemu) change vnc password
244 Password: ********
246 ERST
249 .name = "screendump",
250 .args_type = "filename:F,device:s?,head:i?",
251 .params = "filename [device [head]]",
252 .help = "save screen from head 'head' of display device 'device' "
253 "into PPM image 'filename'",
254 .cmd = hmp_screendump,
255 .coroutine = true,
258 SRST
259 ``screendump`` *filename*
260 Save screen into PPM image *filename*.
261 ERST
264 .name = "logfile",
265 .args_type = "filename:F",
266 .params = "filename",
267 .help = "output logs to 'filename'",
268 .cmd = hmp_logfile,
271 SRST
272 ``logfile`` *filename*
273 Output logs to *filename*.
274 ERST
277 .name = "trace-event",
278 .args_type = "name:s,option:b,vcpu:i?",
279 .params = "name on|off [vcpu]",
280 .help = "changes status of a specific trace event "
281 "(vcpu: vCPU to set, default is all)",
282 .cmd = hmp_trace_event,
283 .command_completion = trace_event_completion,
286 SRST
287 ``trace-event``
288 changes status of a trace event
289 ERST
291 #if defined(CONFIG_TRACE_SIMPLE)
293 .name = "trace-file",
294 .args_type = "op:s?,arg:F?",
295 .params = "on|off|flush|set [arg]",
296 .help = "open, close, or flush trace file, or set a new file name",
297 .cmd = hmp_trace_file,
300 SRST
301 ``trace-file on|off|flush``
302 Open, close, or flush the trace file. If no argument is given, the
303 status of the trace file is displayed.
304 ERST
305 #endif
308 .name = "log",
309 .args_type = "items:s",
310 .params = "item1[,...]",
311 .help = "activate logging of the specified items",
312 .cmd = hmp_log,
315 SRST
316 ``log`` *item1*\ [,...]
317 Activate logging of the specified items.
318 ERST
321 .name = "savevm",
322 .args_type = "name:s?",
323 .params = "tag",
324 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
325 .cmd = hmp_savevm,
328 SRST
329 ``savevm`` *tag*
330 Create a snapshot of the whole virtual machine. If *tag* is
331 provided, it is used as human readable identifier. If there is already
332 a snapshot with the same tag, it is replaced. More info at
333 :ref:`vm_005fsnapshots`.
335 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
336 only *tag* as parameter.
337 ERST
340 .name = "loadvm",
341 .args_type = "name:s",
342 .params = "tag",
343 .help = "restore a VM snapshot from its tag",
344 .cmd = hmp_loadvm,
345 .command_completion = loadvm_completion,
348 SRST
349 ``loadvm`` *tag*
350 Set the whole virtual machine to the snapshot identified by the tag
351 *tag*.
353 Since 4.0, loadvm stopped accepting snapshot id as parameter.
354 ERST
357 .name = "delvm",
358 .args_type = "name:s",
359 .params = "tag",
360 .help = "delete a VM snapshot from its tag",
361 .cmd = hmp_delvm,
362 .command_completion = delvm_completion,
365 SRST
366 ``delvm`` *tag*
367 Delete the snapshot identified by *tag*.
369 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
370 only *tag* as parameter.
371 ERST
374 .name = "singlestep",
375 .args_type = "option:s?",
376 .params = "[on|off]",
377 .help = "run emulation in singlestep mode or switch to normal mode",
378 .cmd = hmp_singlestep,
381 SRST
382 ``singlestep [off]``
383 Run the emulation in single step mode.
384 If called with option off, the emulation returns to normal mode.
385 ERST
388 .name = "stop|s",
389 .args_type = "",
390 .params = "",
391 .help = "stop emulation",
392 .cmd = hmp_stop,
395 SRST
396 ``stop`` or ``s``
397 Stop emulation.
398 ERST
401 .name = "cont|c",
402 .args_type = "",
403 .params = "",
404 .help = "resume emulation",
405 .cmd = hmp_cont,
408 SRST
409 ``cont`` or ``c``
410 Resume emulation.
411 ERST
414 .name = "system_wakeup",
415 .args_type = "",
416 .params = "",
417 .help = "wakeup guest from suspend",
418 .cmd = hmp_system_wakeup,
421 SRST
422 ``system_wakeup``
423 Wakeup guest from suspend.
424 ERST
427 .name = "gdbserver",
428 .args_type = "device:s?",
429 .params = "[device]",
430 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
431 .cmd = hmp_gdbserver,
434 SRST
435 ``gdbserver`` [*port*]
436 Start gdbserver session (default *port*\=1234)
437 ERST
440 .name = "x",
441 .args_type = "fmt:/,addr:l",
442 .params = "/fmt addr",
443 .help = "virtual memory dump starting at 'addr'",
444 .cmd = hmp_memory_dump,
447 SRST
448 ``x/``\ *fmt* *addr*
449 Virtual memory dump starting at *addr*.
450 ERST
453 .name = "xp",
454 .args_type = "fmt:/,addr:l",
455 .params = "/fmt addr",
456 .help = "physical memory dump starting at 'addr'",
457 .cmd = hmp_physical_memory_dump,
460 SRST
461 ``xp /``\ *fmt* *addr*
462 Physical memory dump starting at *addr*.
464 *fmt* is a format which tells the command how to format the
465 data. Its syntax is: ``/{count}{format}{size}``
467 *count*
468 is the number of items to be dumped.
469 *format*
470 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
471 c (char) or i (asm instruction).
472 *size*
473 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
474 ``h`` or ``w`` can be specified with the ``i`` format to
475 respectively select 16 or 32 bit code instruction size.
477 Examples:
479 Dump 10 instructions at the current instruction pointer::
481 (qemu) x/10i $eip
482 0x90107063: ret
483 0x90107064: sti
484 0x90107065: lea 0x0(%esi,1),%esi
485 0x90107069: lea 0x0(%edi,1),%edi
486 0x90107070: ret
487 0x90107071: jmp 0x90107080
488 0x90107073: nop
489 0x90107074: nop
490 0x90107075: nop
491 0x90107076: nop
493 Dump 80 16 bit values at the start of the video memory::
495 (qemu) xp/80hx 0xb8000
496 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
497 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
498 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
499 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
500 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
501 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
502 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
503 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
504 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
505 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
507 ERST
510 .name = "gpa2hva",
511 .args_type = "addr:l",
512 .params = "addr",
513 .help = "print the host virtual address corresponding to a guest physical address",
514 .cmd = hmp_gpa2hva,
517 SRST
518 ``gpa2hva`` *addr*
519 Print the host virtual address at which the guest's physical address *addr*
520 is mapped.
521 ERST
523 #ifdef CONFIG_LINUX
525 .name = "gpa2hpa",
526 .args_type = "addr:l",
527 .params = "addr",
528 .help = "print the host physical address corresponding to a guest physical address",
529 .cmd = hmp_gpa2hpa,
531 #endif
533 SRST
534 ``gpa2hpa`` *addr*
535 Print the host physical address at which the guest's physical address *addr*
536 is mapped.
537 ERST
540 .name = "gva2gpa",
541 .args_type = "addr:l",
542 .params = "addr",
543 .help = "print the guest physical address corresponding to a guest virtual address",
544 .cmd = hmp_gva2gpa,
547 SRST
548 ``gva2gpa`` *addr*
549 Print the guest physical address at which the guest's virtual address *addr*
550 is mapped based on the mapping for the current CPU.
551 ERST
554 .name = "print|p",
555 .args_type = "fmt:/,val:l",
556 .params = "/fmt expr",
557 .help = "print expression value (use $reg for CPU register access)",
558 .cmd = do_print,
561 SRST
562 ``print`` or ``p/``\ *fmt* *expr*
563 Print expression value. Only the *format* part of *fmt* is
564 used.
565 ERST
568 .name = "i",
569 .args_type = "fmt:/,addr:i,index:i.",
570 .params = "/fmt addr",
571 .help = "I/O port read",
572 .cmd = hmp_ioport_read,
575 SRST
576 ``i/``\ *fmt* *addr* [.\ *index*\ ]
577 Read I/O port.
578 ERST
581 .name = "o",
582 .args_type = "fmt:/,addr:i,val:i",
583 .params = "/fmt addr value",
584 .help = "I/O port write",
585 .cmd = hmp_ioport_write,
588 SRST
589 ``o/``\ *fmt* *addr* *val*
590 Write to I/O port.
591 ERST
594 .name = "sendkey",
595 .args_type = "keys:s,hold-time:i?",
596 .params = "keys [hold_ms]",
597 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
598 .cmd = hmp_sendkey,
599 .command_completion = sendkey_completion,
602 SRST
603 ``sendkey`` *keys*
604 Send *keys* to the guest. *keys* could be the name of the
605 key or the raw value in hexadecimal format. Use ``-`` to press
606 several keys simultaneously. Example::
608 sendkey ctrl-alt-f1
610 This command is useful to send keys that your graphical user interface
611 intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
612 ERST
614 .name = "sync-profile",
615 .args_type = "op:s?",
616 .params = "[on|off|reset]",
617 .help = "enable, disable or reset synchronization profiling. "
618 "With no arguments, prints whether profiling is on or off.",
619 .cmd = hmp_sync_profile,
622 SRST
623 ``sync-profile [on|off|reset]``
624 Enable, disable or reset synchronization profiling. With no arguments, prints
625 whether profiling is on or off.
626 ERST
629 .name = "system_reset",
630 .args_type = "",
631 .params = "",
632 .help = "reset the system",
633 .cmd = hmp_system_reset,
636 SRST
637 ``system_reset``
638 Reset the system.
639 ERST
642 .name = "system_powerdown",
643 .args_type = "",
644 .params = "",
645 .help = "send system power down event",
646 .cmd = hmp_system_powerdown,
649 SRST
650 ``system_powerdown``
651 Power down the system (if supported).
652 ERST
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 SRST
663 ``sum`` *addr* *size*
664 Compute the checksum of a memory region.
665 ERST
668 .name = "device_add",
669 .args_type = "device:O",
670 .params = "driver[,prop=value][,...]",
671 .help = "add device, like -device on the command line",
672 .cmd = hmp_device_add,
673 .command_completion = device_add_completion,
676 SRST
677 ``device_add`` *config*
678 Add device.
679 ERST
682 .name = "device_del",
683 .args_type = "id:s",
684 .params = "device",
685 .help = "remove device",
686 .cmd = hmp_device_del,
687 .command_completion = device_del_completion,
690 SRST
691 ``device_del`` *id*
692 Remove device *id*. *id* may be a short ID
693 or a QOM object path.
694 ERST
697 .name = "cpu",
698 .args_type = "index:i",
699 .params = "index",
700 .help = "set the default CPU",
701 .cmd = hmp_cpu,
704 SRST
705 ``cpu`` *index*
706 Set the default CPU.
707 ERST
710 .name = "mouse_move",
711 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
712 .params = "dx dy [dz]",
713 .help = "send mouse move events",
714 .cmd = hmp_mouse_move,
717 SRST
718 ``mouse_move`` *dx* *dy* [*dz*]
719 Move the active mouse to the specified coordinates *dx* *dy*
720 with optional scroll axis *dz*.
721 ERST
724 .name = "mouse_button",
725 .args_type = "button_state:i",
726 .params = "state",
727 .help = "change mouse button state (1=L, 2=M, 4=R)",
728 .cmd = hmp_mouse_button,
731 SRST
732 ``mouse_button`` *val*
733 Change the active mouse button state *val* (1=L, 2=M, 4=R).
734 ERST
737 .name = "mouse_set",
738 .args_type = "index:i",
739 .params = "index",
740 .help = "set which mouse device receives events",
741 .cmd = hmp_mouse_set,
744 SRST
745 ``mouse_set`` *index*
746 Set which mouse device receives events at given *index*, index
747 can be obtained with::
749 info mice
751 ERST
754 .name = "wavcapture",
755 .args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
756 .params = "path audiodev [frequency [bits [channels]]]",
757 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
758 .cmd = hmp_wavcapture,
760 SRST
761 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
762 Capture audio into *filename* from *audiodev*, using sample rate
763 *frequency* bits per sample *bits* and number of channels
764 *channels*.
766 Defaults:
768 - Sample rate = 44100 Hz - CD quality
769 - Bits = 16
770 - Number of channels = 2 - Stereo
771 ERST
774 .name = "stopcapture",
775 .args_type = "n:i",
776 .params = "capture index",
777 .help = "stop capture",
778 .cmd = hmp_stopcapture,
780 SRST
781 ``stopcapture`` *index*
782 Stop capture with a given *index*, index can be obtained with::
784 info capture
786 ERST
789 .name = "memsave",
790 .args_type = "val:l,size:i,filename:s",
791 .params = "addr size file",
792 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
793 .cmd = hmp_memsave,
796 SRST
797 ``memsave`` *addr* *size* *file*
798 save to disk virtual memory dump starting at *addr* of size *size*.
799 ERST
802 .name = "pmemsave",
803 .args_type = "val:l,size:i,filename:s",
804 .params = "addr size file",
805 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
806 .cmd = hmp_pmemsave,
809 SRST
810 ``pmemsave`` *addr* *size* *file*
811 save to disk physical memory dump starting at *addr* of size *size*.
812 ERST
815 .name = "boot_set",
816 .args_type = "bootdevice:s",
817 .params = "bootdevice",
818 .help = "define new values for the boot device list",
819 .cmd = hmp_boot_set,
822 SRST
823 ``boot_set`` *bootdevicelist*
824 Define new values for the boot device list. Those values will override
825 the values specified on the command line through the ``-boot`` option.
827 The values that can be specified here depend on the machine type, but are
828 the same that can be specified in the ``-boot`` command line option.
829 ERST
832 .name = "nmi",
833 .args_type = "",
834 .params = "",
835 .help = "inject an NMI",
836 .cmd = hmp_nmi,
838 SRST
839 ``nmi`` *cpu*
840 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
841 ERST
844 .name = "ringbuf_write",
845 .args_type = "device:s,data:s",
846 .params = "device data",
847 .help = "Write to a ring buffer character device",
848 .cmd = hmp_ringbuf_write,
849 .command_completion = ringbuf_write_completion,
852 SRST
853 ``ringbuf_write`` *device* *data*
854 Write *data* to ring buffer character device *device*.
855 *data* must be a UTF-8 string.
856 ERST
859 .name = "ringbuf_read",
860 .args_type = "device:s,size:i",
861 .params = "device size",
862 .help = "Read from a ring buffer character device",
863 .cmd = hmp_ringbuf_read,
864 .command_completion = ringbuf_write_completion,
867 SRST
868 ``ringbuf_read`` *device*
869 Read and print up to *size* bytes from ring buffer character
870 device *device*.
871 Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
872 character code in hexadecimal. Character ``\`` is printed ``\\``.
873 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
874 NUL characters, after the ring buffer lost data, and when reading
875 stops because the size limit is reached.
876 ERST
879 .name = "announce_self",
880 .args_type = "interfaces:s?,id:s?",
881 .params = "[interfaces] [id]",
882 .help = "Trigger GARP/RARP announcements",
883 .cmd = hmp_announce_self,
886 SRST
887 ``announce_self``
888 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
889 updating the network infrastructure after a reconfiguration or some forms
890 of migration. The timings of the round are set by the migration announce
891 parameters. An optional comma separated *interfaces* list restricts the
892 announce to the named set of interfaces. An optional *id* can be used to
893 start a separate announce timer and to change the parameters of it later.
894 ERST
897 .name = "migrate",
898 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
899 .params = "[-d] [-b] [-i] [-r] uri",
900 .help = "migrate to URI (using -d to not wait for completion)"
901 "\n\t\t\t -b for migration without shared storage with"
902 " full copy of disk\n\t\t\t -i for migration without "
903 "shared storage with incremental copy of disk "
904 "(base image shared between src and destination)"
905 "\n\t\t\t -r to resume a paused migration",
906 .cmd = hmp_migrate,
910 SRST
911 ``migrate [-d] [-b] [-i]`` *uri*
912 Migrate to *uri* (using -d to not wait for completion).
914 ``-b``
915 for migration with full copy of disk
916 ``-i``
917 for migration with incremental copy of disk (base image is shared)
918 ERST
921 .name = "migrate_cancel",
922 .args_type = "",
923 .params = "",
924 .help = "cancel the current VM migration",
925 .cmd = hmp_migrate_cancel,
928 SRST
929 ``migrate_cancel``
930 Cancel the current VM migration.
931 ERST
934 .name = "migrate_continue",
935 .args_type = "state:s",
936 .params = "state",
937 .help = "Continue migration from the given paused state",
938 .cmd = hmp_migrate_continue,
940 SRST
941 ``migrate_continue`` *state*
942 Continue migration from the paused state *state*
943 ERST
946 .name = "migrate_incoming",
947 .args_type = "uri:s",
948 .params = "uri",
949 .help = "Continue an incoming migration from an -incoming defer",
950 .cmd = hmp_migrate_incoming,
953 SRST
954 ``migrate_incoming`` *uri*
955 Continue an incoming migration using the *uri* (that has the same syntax
956 as the ``-incoming`` option).
957 ERST
960 .name = "migrate_recover",
961 .args_type = "uri:s",
962 .params = "uri",
963 .help = "Continue a paused incoming postcopy migration",
964 .cmd = hmp_migrate_recover,
967 SRST
968 ``migrate_recover`` *uri*
969 Continue a paused incoming postcopy migration using the *uri*.
970 ERST
973 .name = "migrate_pause",
974 .args_type = "",
975 .params = "",
976 .help = "Pause an ongoing migration (postcopy-only)",
977 .cmd = hmp_migrate_pause,
980 SRST
981 ``migrate_pause``
982 Pause an ongoing migration. Currently it only supports postcopy.
983 ERST
986 .name = "migrate_set_capability",
987 .args_type = "capability:s,state:b",
988 .params = "capability state",
989 .help = "Enable/Disable the usage of a capability for migration",
990 .cmd = hmp_migrate_set_capability,
991 .command_completion = migrate_set_capability_completion,
994 SRST
995 ``migrate_set_capability`` *capability* *state*
996 Enable/Disable the usage of a capability *capability* for migration.
997 ERST
1000 .name = "migrate_set_parameter",
1001 .args_type = "parameter:s,value:s",
1002 .params = "parameter value",
1003 .help = "Set the parameter for migration",
1004 .cmd = hmp_migrate_set_parameter,
1005 .command_completion = migrate_set_parameter_completion,
1008 SRST
1009 ``migrate_set_parameter`` *parameter* *value*
1010 Set the parameter *parameter* for migration.
1011 ERST
1014 .name = "migrate_start_postcopy",
1015 .args_type = "",
1016 .params = "",
1017 .help = "Followup to a migration command to switch the migration"
1018 " to postcopy mode. The postcopy-ram capability must "
1019 "be set on both source and destination before the "
1020 "original migration command .",
1021 .cmd = hmp_migrate_start_postcopy,
1024 SRST
1025 ``migrate_start_postcopy``
1026 Switch in-progress migration to postcopy mode. Ignored after the end of
1027 migration (or once already in postcopy).
1028 ERST
1031 .name = "x_colo_lost_heartbeat",
1032 .args_type = "",
1033 .params = "",
1034 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1035 "a failover or takeover is needed.",
1036 .cmd = hmp_x_colo_lost_heartbeat,
1039 SRST
1040 ``x_colo_lost_heartbeat``
1041 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1042 ERST
1045 .name = "client_migrate_info",
1046 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1047 .params = "protocol hostname port tls-port cert-subject",
1048 .help = "set migration information for remote display",
1049 .cmd = hmp_client_migrate_info,
1052 SRST
1053 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1054 Set migration information for remote display. This makes the server
1055 ask the client to automatically reconnect using the new parameters
1056 once migration finished successfully. Only implemented for SPICE.
1057 ERST
1060 .name = "dump-guest-memory",
1061 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1062 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1063 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1064 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1065 "-d: return immediately (do not wait for completion).\n\t\t\t"
1066 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1067 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1068 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1069 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1070 " for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
1071 "begin: the starting physical address.\n\t\t\t"
1072 "length: the memory size, in bytes.",
1073 .cmd = hmp_dump_guest_memory,
1076 SRST
1077 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1079 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1080 Dump guest memory to *protocol*. The file can be processed with crash or
1081 gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1083 ``-p``
1084 do paging to get guest's memory mapping.
1085 ``-z``
1086 dump in kdump-compressed format, with zlib compression.
1087 ``-l``
1088 dump in kdump-compressed format, with lzo compression.
1089 ``-s``
1090 dump in kdump-compressed format, with snappy compression.
1091 ``-w``
1092 dump in Windows crashdump format (can be used instead of ELF-dump converting),
1093 for Windows x64 guests with vmcoreinfo driver only
1094 *filename*
1095 dump file name.
1096 *begin*
1097 the starting physical address. It's optional, and should be
1098 specified together with *length*.
1099 *length*
1100 the memory size, in bytes. It's optional, and should be specified
1101 together with *begin*.
1103 ERST
1105 #if defined(TARGET_S390X)
1107 .name = "dump-skeys",
1108 .args_type = "filename:F",
1109 .params = "",
1110 .help = "Save guest storage keys into file 'filename'.\n",
1111 .cmd = hmp_dump_skeys,
1113 #endif
1115 SRST
1116 ``dump-skeys`` *filename*
1117 Save guest storage keys to a file.
1118 ERST
1120 #if defined(TARGET_S390X)
1122 .name = "migration_mode",
1123 .args_type = "mode:i",
1124 .params = "mode",
1125 .help = "Enables or disables migration mode\n",
1126 .cmd = hmp_migrationmode,
1128 #endif
1130 SRST
1131 ``migration_mode`` *mode*
1132 Enables or disables migration mode.
1133 ERST
1136 .name = "snapshot_blkdev",
1137 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1138 .params = "[-n] device [new-image-file] [format]",
1139 .help = "initiates a live snapshot\n\t\t\t"
1140 "of device. If a new image file is specified, the\n\t\t\t"
1141 "new image file will become the new root image.\n\t\t\t"
1142 "If format is specified, the snapshot file will\n\t\t\t"
1143 "be created in that format.\n\t\t\t"
1144 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1145 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1146 "recreating it from scratch.",
1147 .cmd = hmp_snapshot_blkdev,
1150 SRST
1151 ``snapshot_blkdev``
1152 Snapshot device, using snapshot file as target if provided
1153 ERST
1156 .name = "snapshot_blkdev_internal",
1157 .args_type = "device:B,name:s",
1158 .params = "device name",
1159 .help = "take an internal snapshot of device.\n\t\t\t"
1160 "The format of the image used by device must\n\t\t\t"
1161 "support it, such as qcow2.\n\t\t\t",
1162 .cmd = hmp_snapshot_blkdev_internal,
1165 SRST
1166 ``snapshot_blkdev_internal``
1167 Take an internal snapshot on device if it support
1168 ERST
1171 .name = "snapshot_delete_blkdev_internal",
1172 .args_type = "device:B,name:s,id:s?",
1173 .params = "device name [id]",
1174 .help = "delete an internal snapshot of device.\n\t\t\t"
1175 "If id is specified, qemu will try delete\n\t\t\t"
1176 "the snapshot matching both id and name.\n\t\t\t"
1177 "The format of the image used by device must\n\t\t\t"
1178 "support it, such as qcow2.\n\t\t\t",
1179 .cmd = hmp_snapshot_delete_blkdev_internal,
1182 SRST
1183 ``snapshot_delete_blkdev_internal``
1184 Delete an internal snapshot on device if it support
1185 ERST
1188 .name = "drive_mirror",
1189 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1190 .params = "[-n] [-f] device target [format]",
1191 .help = "initiates live storage\n\t\t\t"
1192 "migration for a device. The device's contents are\n\t\t\t"
1193 "copied to the new image file, including data that\n\t\t\t"
1194 "is written after the command is started.\n\t\t\t"
1195 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1196 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1197 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1198 "so that the result does not need a backing file.\n\t\t\t",
1199 .cmd = hmp_drive_mirror,
1201 SRST
1202 ``drive_mirror``
1203 Start mirroring a block device's writes to a new destination,
1204 using the specified target.
1205 ERST
1208 .name = "drive_backup",
1209 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1210 .params = "[-n] [-f] [-c] device target [format]",
1211 .help = "initiates a point-in-time\n\t\t\t"
1212 "copy for a device. The device's contents are\n\t\t\t"
1213 "copied to the new image file, excluding data that\n\t\t\t"
1214 "is written after the command is started.\n\t\t\t"
1215 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1216 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1217 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1218 "so that the result does not need a backing file.\n\t\t\t"
1219 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1220 "(if the target format supports it).\n\t\t\t",
1221 .cmd = hmp_drive_backup,
1223 SRST
1224 ``drive_backup``
1225 Start a point-in-time copy of a block device to a specified target.
1226 ERST
1229 .name = "drive_add",
1230 .args_type = "node:-n,pci_addr:s,opts:s",
1231 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1232 "[file=file][,if=type][,bus=n]\n"
1233 "[,unit=m][,media=d][,index=i]\n"
1234 "[,snapshot=on|off][,cache=on|off]\n"
1235 "[,readonly=on|off][,copy-on-read=on|off]",
1236 .help = "add drive to PCI storage controller",
1237 .cmd = hmp_drive_add,
1240 SRST
1241 ``drive_add``
1242 Add drive to PCI storage controller.
1243 ERST
1246 .name = "pcie_aer_inject_error",
1247 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1248 "id:s,error_status:s,"
1249 "header0:i?,header1:i?,header2:i?,header3:i?,"
1250 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1251 .params = "[-a] [-c] id "
1252 "<error_status> [<tlp header> [<tlp header prefix>]]",
1253 .help = "inject pcie aer error\n\t\t\t"
1254 " -a for advisory non fatal error\n\t\t\t"
1255 " -c for correctable error\n\t\t\t"
1256 "<id> = qdev device id\n\t\t\t"
1257 "<error_status> = error string or 32bit\n\t\t\t"
1258 "<tlp header> = 32bit x 4\n\t\t\t"
1259 "<tlp header prefix> = 32bit x 4",
1260 .cmd = hmp_pcie_aer_inject_error,
1263 SRST
1264 ``pcie_aer_inject_error``
1265 Inject PCIe AER error
1266 ERST
1269 .name = "netdev_add",
1270 .args_type = "netdev:O",
1271 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1272 .help = "add host network device",
1273 .cmd = hmp_netdev_add,
1274 .command_completion = netdev_add_completion,
1275 .flags = "p",
1278 SRST
1279 ``netdev_add``
1280 Add host network device.
1281 ERST
1284 .name = "netdev_del",
1285 .args_type = "id:s",
1286 .params = "id",
1287 .help = "remove host network device",
1288 .cmd = hmp_netdev_del,
1289 .command_completion = netdev_del_completion,
1290 .flags = "p",
1293 SRST
1294 ``netdev_del``
1295 Remove host network device.
1296 ERST
1299 .name = "object_add",
1300 .args_type = "object:S",
1301 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1302 .help = "create QOM object",
1303 .cmd = hmp_object_add,
1304 .command_completion = object_add_completion,
1305 .flags = "p",
1308 SRST
1309 ``object_add``
1310 Create QOM object.
1311 ERST
1314 .name = "object_del",
1315 .args_type = "id:s",
1316 .params = "id",
1317 .help = "destroy QOM object",
1318 .cmd = hmp_object_del,
1319 .command_completion = object_del_completion,
1320 .flags = "p",
1323 SRST
1324 ``object_del``
1325 Destroy QOM object.
1326 ERST
1328 #ifdef CONFIG_SLIRP
1330 .name = "hostfwd_add",
1331 .args_type = "arg1:s,arg2:s?",
1332 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1333 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1334 .cmd = hmp_hostfwd_add,
1336 #endif
1337 SRST
1338 ``hostfwd_add``
1339 Redirect TCP or UDP connections from host to guest (requires -net user).
1340 ERST
1342 #ifdef CONFIG_SLIRP
1344 .name = "hostfwd_remove",
1345 .args_type = "arg1:s,arg2:s?",
1346 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1347 .help = "remove host-to-guest TCP or UDP redirection",
1348 .cmd = hmp_hostfwd_remove,
1351 #endif
1352 SRST
1353 ``hostfwd_remove``
1354 Remove host-to-guest TCP or UDP redirection.
1355 ERST
1358 .name = "balloon",
1359 .args_type = "value:M",
1360 .params = "target",
1361 .help = "request VM to change its memory allocation (in MB)",
1362 .cmd = hmp_balloon,
1365 SRST
1366 ``balloon`` *value*
1367 Request VM to change its memory allocation to *value* (in MB).
1368 ERST
1371 .name = "set_link",
1372 .args_type = "name:s,up:b",
1373 .params = "name on|off",
1374 .help = "change the link status of a network adapter",
1375 .cmd = hmp_set_link,
1376 .command_completion = set_link_completion,
1379 SRST
1380 ``set_link`` *name* ``[on|off]``
1381 Switch link *name* on (i.e. up) or off (i.e. down).
1382 ERST
1385 .name = "watchdog_action",
1386 .args_type = "action:s",
1387 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1388 .help = "change watchdog action",
1389 .cmd = hmp_watchdog_action,
1390 .command_completion = watchdog_action_completion,
1393 SRST
1394 ``watchdog_action``
1395 Change watchdog action.
1396 ERST
1399 .name = "nbd_server_start",
1400 .args_type = "all:-a,writable:-w,uri:s",
1401 .params = "nbd_server_start [-a] [-w] host:port",
1402 .help = "serve block devices on the given host and port",
1403 .cmd = hmp_nbd_server_start,
1405 SRST
1406 ``nbd_server_start`` *host*:*port*
1407 Start an NBD server on the given host and/or port. If the ``-a``
1408 option is included, all of the virtual machine's block devices that
1409 have an inserted media on them are automatically exported; in this case,
1410 the ``-w`` option makes the devices writable too.
1411 ERST
1414 .name = "nbd_server_add",
1415 .args_type = "writable:-w,device:B,name:s?",
1416 .params = "nbd_server_add [-w] device [name]",
1417 .help = "export a block device via NBD",
1418 .cmd = hmp_nbd_server_add,
1420 SRST
1421 ``nbd_server_add`` *device* [ *name* ]
1422 Export a block device through QEMU's NBD server, which must be started
1423 beforehand with ``nbd_server_start``. The ``-w`` option makes the
1424 exported device writable too. The export name is controlled by *name*,
1425 defaulting to *device*.
1426 ERST
1429 .name = "nbd_server_remove",
1430 .args_type = "force:-f,name:s",
1431 .params = "nbd_server_remove [-f] name",
1432 .help = "remove an export previously exposed via NBD",
1433 .cmd = hmp_nbd_server_remove,
1435 SRST
1436 ``nbd_server_remove [-f]`` *name*
1437 Stop exporting a block device through QEMU's NBD server, which was
1438 previously started with ``nbd_server_add``. The ``-f``
1439 option forces the server to drop the export immediately even if
1440 clients are connected; otherwise the command fails unless there are no
1441 clients.
1442 ERST
1445 .name = "nbd_server_stop",
1446 .args_type = "",
1447 .params = "nbd_server_stop",
1448 .help = "stop serving block devices using the NBD protocol",
1449 .cmd = hmp_nbd_server_stop,
1451 SRST
1452 ``nbd_server_stop``
1453 Stop the QEMU embedded NBD server.
1454 ERST
1457 #if defined(TARGET_I386)
1460 .name = "mce",
1461 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1462 .params = "[-b] cpu bank status mcgstatus addr misc",
1463 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1464 .cmd = hmp_mce,
1467 #endif
1468 SRST
1469 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1470 Inject an MCE on the given CPU (x86 only).
1471 ERST
1474 .name = "getfd",
1475 .args_type = "fdname:s",
1476 .params = "getfd name",
1477 .help = "receive a file descriptor via SCM rights and assign it a name",
1478 .cmd = hmp_getfd,
1481 SRST
1482 ``getfd`` *fdname*
1483 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1484 mechanism on unix sockets, it is stored using the name *fdname* for
1485 later use by other monitor commands.
1486 ERST
1489 .name = "closefd",
1490 .args_type = "fdname:s",
1491 .params = "closefd name",
1492 .help = "close a file descriptor previously passed via SCM rights",
1493 .cmd = hmp_closefd,
1496 SRST
1497 ``closefd`` *fdname*
1498 Close the file descriptor previously assigned to *fdname* using the
1499 ``getfd`` command. This is only needed if the file descriptor was never
1500 used by another monitor command.
1501 ERST
1504 .name = "block_set_io_throttle",
1505 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1506 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1507 .help = "change I/O throttle limits for a block drive",
1508 .cmd = hmp_block_set_io_throttle,
1511 SRST
1512 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1513 Change I/O throttle limits for a block drive to
1514 *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1515 *device* can be a block device name, a qdev ID or a QOM path.
1516 ERST
1519 .name = "set_password",
1520 .args_type = "protocol:s,password:s,display:-ds,connected:s?",
1521 .params = "protocol password [-d display] [action-if-connected]",
1522 .help = "set spice/vnc password",
1523 .cmd = hmp_set_password,
1526 SRST
1527 ``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1528 Change spice/vnc password. *display* can be used with 'vnc' to specify
1529 which display to set the password on. *action-if-connected* specifies
1530 what should happen in case a connection is established: *fail* makes
1531 the password change fail. *disconnect* changes the password and
1532 disconnects the client. *keep* changes the password and keeps the
1533 connection up. *keep* is the default.
1534 ERST
1537 .name = "expire_password",
1538 .args_type = "protocol:s,time:s,display:-ds",
1539 .params = "protocol time [-d display]",
1540 .help = "set spice/vnc password expire-time",
1541 .cmd = hmp_expire_password,
1544 SRST
1545 ``expire_password [ vnc | spice ] expire-time [ -d display ]``
1546 Specify when a password for spice/vnc becomes invalid.
1547 *display* behaves the same as in ``set_password``.
1548 *expire-time* accepts:
1550 ``now``
1551 Invalidate password instantly.
1552 ``never``
1553 Password stays valid forever.
1554 ``+``\ *nsec*
1555 Password stays valid for *nsec* seconds starting now.
1556 *nsec*
1557 Password is invalidated at the given time. *nsec* are the seconds
1558 passed since 1970, i.e. unix epoch.
1560 ERST
1563 .name = "chardev-add",
1564 .args_type = "args:s",
1565 .params = "args",
1566 .help = "add chardev",
1567 .cmd = hmp_chardev_add,
1568 .command_completion = chardev_add_completion,
1571 SRST
1572 ``chardev-add`` *args*
1573 chardev-add accepts the same parameters as the -chardev command line switch.
1574 ERST
1577 .name = "chardev-change",
1578 .args_type = "id:s,args:s",
1579 .params = "id args",
1580 .help = "change chardev",
1581 .cmd = hmp_chardev_change,
1584 SRST
1585 ``chardev-change`` *args*
1586 chardev-change accepts existing chardev *id* and then the same arguments
1587 as the -chardev command line switch (except for "id").
1588 ERST
1591 .name = "chardev-remove",
1592 .args_type = "id:s",
1593 .params = "id",
1594 .help = "remove chardev",
1595 .cmd = hmp_chardev_remove,
1596 .command_completion = chardev_remove_completion,
1599 SRST
1600 ``chardev-remove`` *id*
1601 Removes the chardev *id*.
1602 ERST
1605 .name = "chardev-send-break",
1606 .args_type = "id:s",
1607 .params = "id",
1608 .help = "send a break on chardev",
1609 .cmd = hmp_chardev_send_break,
1610 .command_completion = chardev_remove_completion,
1613 SRST
1614 ``chardev-send-break`` *id*
1615 Send a break on the chardev *id*.
1616 ERST
1619 .name = "qemu-io",
1620 .args_type = "qdev:-d,device:B,command:s",
1621 .params = "[-d] [device] \"[command]\"",
1622 .help = "run a qemu-io command on a block device\n\t\t\t"
1623 "-d: [device] is a device ID rather than a "
1624 "drive ID or node name",
1625 .cmd = hmp_qemu_io,
1628 SRST
1629 ``qemu-io`` *device* *command*
1630 Executes a qemu-io command on the given block device.
1631 ERST
1634 .name = "qom-list",
1635 .args_type = "path:s?",
1636 .params = "path",
1637 .help = "list QOM properties",
1638 .cmd = hmp_qom_list,
1639 .flags = "p",
1642 SRST
1643 ``qom-list`` [*path*]
1644 Print QOM properties of object at location *path*
1645 ERST
1648 .name = "qom-get",
1649 .args_type = "path:s,property:s",
1650 .params = "path property",
1651 .help = "print QOM property",
1652 .cmd = hmp_qom_get,
1653 .flags = "p",
1656 SRST
1657 ``qom-get`` *path* *property*
1658 Print QOM property *property* of object at location *path*
1659 ERST
1662 .name = "qom-set",
1663 .args_type = "json:-j,path:s,property:s,value:S",
1664 .params = "[-j] path property value",
1665 .help = "set QOM property.\n\t\t\t"
1666 "-j: the value is specified in json format.",
1667 .cmd = hmp_qom_set,
1668 .flags = "p",
1671 SRST
1672 ``qom-set`` *path* *property* *value*
1673 Set QOM property *property* of object at location *path* to value *value*
1674 ERST
1677 .name = "replay_break",
1678 .args_type = "icount:l",
1679 .params = "icount",
1680 .help = "set breakpoint at the specified instruction count",
1681 .cmd = hmp_replay_break,
1684 SRST
1685 ``replay_break`` *icount*
1686 Set replay breakpoint at instruction count *icount*.
1687 Execution stops when the specified instruction is reached.
1688 There can be at most one breakpoint. When breakpoint is set, any prior
1689 one is removed. The breakpoint may be set only in replay mode and only
1690 "in the future", i.e. at instruction counts greater than the current one.
1691 The current instruction count can be observed with ``info replay``.
1692 ERST
1695 .name = "replay_delete_break",
1696 .args_type = "",
1697 .params = "",
1698 .help = "remove replay breakpoint",
1699 .cmd = hmp_replay_delete_break,
1702 SRST
1703 ``replay_delete_break``
1704 Remove replay breakpoint which was previously set with ``replay_break``.
1705 The command is ignored when there are no replay breakpoints.
1706 ERST
1709 .name = "replay_seek",
1710 .args_type = "icount:l",
1711 .params = "icount",
1712 .help = "replay execution to the specified instruction count",
1713 .cmd = hmp_replay_seek,
1716 SRST
1717 ``replay_seek`` *icount*
1718 Automatically proceed to the instruction count *icount*, when
1719 replaying the execution. The command automatically loads nearest
1720 snapshot and replays the execution to find the desired instruction.
1721 When there is no preceding snapshot or the execution is not replayed,
1722 then the command fails.
1723 *icount* for the reference may be observed with ``info replay`` command.
1724 ERST
1727 .name = "info",
1728 .args_type = "item:s?",
1729 .params = "[subcommand]",
1730 .help = "show various information about the system state",
1731 .cmd = hmp_info_help,
1732 .sub_table = hmp_info_cmds,
1733 .flags = "p",
1736 SRST
1737 ``calc_dirty_rate`` *second*
1738 Start a round of dirty rate measurement with the period specified in *second*.
1739 The result of the dirty rate measurement may be observed with ``info
1740 dirty_rate`` command.
1741 ERST
1744 .name = "calc_dirty_rate",
1745 .args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1746 .params = "[-r] [-b] second [sample_pages_per_GB]",
1747 .help = "start a round of guest dirty rate measurement (using -r to"
1748 "\n\t\t\t specify dirty ring as the method of calculation and"
1749 "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
1750 .cmd = hmp_calc_dirty_rate,