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3c95fdef
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1HXCOMM Use DEFHEADING() to define headings in both help text and rST.
2HXCOMM Text between SRST and ERST is copied to the rST version and
3HXCOMM discarded from C version.
2313086a
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4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5HXCOMM monitor commands
3c95fdef 6HXCOMM HXCOMM can be used for comments, discarded from both rST and C.
2313086a 7
2313086a 8
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9 {
10 .name = "help|?",
129be006 11 .args_type = "name:S?",
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12 .params = "[cmd]",
13 .help = "show the help",
cbf81997 14 .cmd = hmp_help,
31785f1b 15 .flags = "p",
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16 },
17
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18SRST
19``help`` or ``?`` [*cmd*]
20 Show the help for all commands or just for command *cmd*.
21ERST
2313086a 22
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23 {
24 .name = "commit",
25 .args_type = "device:B",
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26 .params = "device|all",
27 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
2b9e3576 28 .cmd = hmp_commit,
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29 },
30
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31SRST
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.
40ERST
2313086a 41
d7f9b689 42 {
ff688cd2 43 .name = "quit|q",
d7f9b689 44 .args_type = "",
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45 .params = "",
46 .help = "quit the emulator",
2b9e3576 47 .cmd = hmp_quit,
ebe34444 48 .flags = "p",
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49 },
50
a6b30bca 51SRST
ff688cd2 52``quit`` or ``q``
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53 Quit the emulator.
54ERST
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55
56 {
57 .name = "exit_preconfig",
58 .args_type = "",
59 .params = "",
60 .help = "exit the preconfig state",
61 .cmd = hmp_exit_preconfig,
62 .flags = "p",
63 },
64
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65SRST
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).
72ERST
2313086a 73
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74 {
75 .name = "block_resize",
76 .args_type = "device:B,size:o",
77 .params = "device size",
78 .help = "resize a block image",
2b9e3576 79 .cmd = hmp_block_resize,
eb94b81a 80 .coroutine = true,
f55ba801 81 .flags = "p",
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82 },
83
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84SRST
85``block_resize``
86 Resize a block image while a guest is running. Usually requires guest
87 action to see the updated size. Resize to a lower size is supported,
88 but should be used with extreme caution. Note that this command only
89 resizes image files, it can not resize block devices like LVM volumes.
90ERST
6d4a2b3a 91
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92 {
93 .name = "block_stream",
c83c66c3
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94 .args_type = "device:B,speed:o?,base:s?",
95 .params = "device [speed [base]]",
12bd451f 96 .help = "copy data from a backing file into a block device",
2b9e3576 97 .cmd = hmp_block_stream,
f55ba801 98 .flags = "p",
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99 },
100
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101SRST
102``block_stream``
103 Copy data from a backing file into a block device.
104ERST
2d47c6e9
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105
106 {
107 .name = "block_job_set_speed",
882ec7ce
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108 .args_type = "device:B,speed:o",
109 .params = "device speed",
2d47c6e9 110 .help = "set maximum speed for a background block operation",
2b9e3576 111 .cmd = hmp_block_job_set_speed,
f55ba801 112 .flags = "p",
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113 },
114
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115SRST
116``block_job_set_speed``
117 Set maximum speed for a background block operation.
118ERST
370521a1
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119
120 {
121 .name = "block_job_cancel",
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122 .args_type = "force:-f,device:B",
123 .params = "[-f] device",
124 .help = "stop an active background block operation (use -f"
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125 "\n\t\t\t if you want to abort the operation immediately"
126 "\n\t\t\t instead of keep running until data is in sync)",
2b9e3576 127 .cmd = hmp_block_job_cancel,
f55ba801 128 .flags = "p",
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129 },
130
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131SRST
132``block_job_cancel``
133 Stop an active background block operation (streaming, mirroring).
134ERST
aeae883b
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135
136 {
137 .name = "block_job_complete",
138 .args_type = "device:B",
139 .params = "device",
140 .help = "stop an active background block operation",
2b9e3576 141 .cmd = hmp_block_job_complete,
f55ba801 142 .flags = "p",
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143 },
144
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145SRST
146``block_job_complete``
147 Manually trigger completion of an active background block operation.
148 For mirroring, this will switch the device to the destination path.
149ERST
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150
151 {
152 .name = "block_job_pause",
153 .args_type = "device:B",
154 .params = "device",
155 .help = "pause an active background block operation",
2b9e3576 156 .cmd = hmp_block_job_pause,
f55ba801 157 .flags = "p",
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158 },
159
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160SRST
161``block_job_pause``
162 Pause an active block streaming operation.
163ERST
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164
165 {
166 .name = "block_job_resume",
167 .args_type = "device:B",
168 .params = "device",
169 .help = "resume a paused background block operation",
2b9e3576 170 .cmd = hmp_block_job_resume,
f55ba801 171 .flags = "p",
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172 },
173
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174SRST
175``block_job_resume``
176 Resume a paused block streaming operation.
177ERST
6d4a2b3a 178
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179 {
180 .name = "eject",
78d714e0 181 .args_type = "force:-f,device:B",
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182 .params = "[-f] device",
183 .help = "eject a removable medium (use -f to force it)",
2b9e3576 184 .cmd = hmp_eject,
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185 },
186
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187SRST
188``eject [-f]`` *device*
189 Eject a removable medium (use -f to force it).
190ERST
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191
192 {
193 .name = "drive_del",
f7bdc41a 194 .args_type = "id:B",
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195 .params = "device",
196 .help = "remove host block device",
2b9e3576 197 .cmd = hmp_drive_del,
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198 },
199
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200SRST
201``drive_del`` *device*
202 Remove host block device. The result is that guest generated IO is no longer
203 submitted against the host device underlying the disk. Once a drive has
204 been deleted, the QEMU Block layer returns -EIO which results in IO
205 errors in the guest for applications that are reading/writing to the device.
206 These errors are always reported to the guest, regardless of the drive's error
207 actions (drive options rerror, werror).
208ERST
2313086a 209
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210 {
211 .name = "change",
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212 .args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
213 .params = "device [-f] filename [format [read-only-mode]]",
214 .help = "change a removable medium, optional format, use -f to force the operation",
2b9e3576 215 .cmd = hmp_change,
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216 },
217
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218SRST
219``change`` *device* *setting*
220 Change the configuration of a device.
221
80dd5aff 222 ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
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223 Change the medium for a removable disk device to point to *filename*. eg::
224
225 (qemu) change ide1-cd0 /path/to/some.iso
226
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227 ``-f``
228 forces the operation even if the guest has locked the tray.
229
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230 *format* is optional.
231
232 *read-only-mode* may be used to change the read-only status of the device.
233 It accepts the following values:
234
235 retain
236 Retains the current status; this is the default.
237
238 read-only
239 Makes the device read-only.
240
241 read-write
242 Makes the device writable.
243
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244 ``change vnc password`` [*password*]
245
246 Change the password associated with the VNC server. If the new password
247 is not supplied, the monitor will prompt for it to be entered. VNC
248 passwords are only significant up to 8 letters. eg::
249
250 (qemu) change vnc password
251 Password: ********
252
253ERST
2313086a 254
f38aa2c7 255#ifdef CONFIG_PIXMAN
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256 {
257 .name = "screendump",
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258 .args_type = "filename:F,format:-fs,device:s?,head:i?",
259 .params = "filename [-f format] [device [head]]",
260 .help = "save screen from head 'head' of display device 'device'"
261 "in specified format 'format' as image 'filename'."
262 "Currently only 'png' and 'ppm' formats are supported.",
263 .cmd = hmp_screendump,
0d9b90ce 264 .coroutine = true,
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265 },
266
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267SRST
268``screendump`` *filename*
269 Save screen into PPM image *filename*.
270ERST
f38aa2c7 271#endif
2313086a 272
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273 {
274 .name = "logfile",
275 .args_type = "filename:F",
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276 .params = "filename",
277 .help = "output logs to 'filename'",
2b9e3576 278 .cmd = hmp_logfile,
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279 },
280
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281SRST
282``logfile`` *filename*
283 Output logs to *filename*.
284ERST
2313086a 285
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286 {
287 .name = "trace-event",
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288 .args_type = "name:s,option:b,vcpu:i?",
289 .params = "name on|off [vcpu]",
290 .help = "changes status of a specific trace event "
291 "(vcpu: vCPU to set, default is all)",
2b9e3576 292 .cmd = hmp_trace_event,
987bd270 293 .command_completion = trace_event_completion,
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294 },
295
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296SRST
297``trace-event``
298 changes status of a trace event
299ERST
c5ceb523 300
c45a8168 301#if defined(CONFIG_TRACE_SIMPLE)
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302 {
303 .name = "trace-file",
304 .args_type = "op:s?,arg:F?",
305 .params = "on|off|flush|set [arg]",
306 .help = "open, close, or flush trace file, or set a new file name",
2b9e3576 307 .cmd = hmp_trace_file,
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308 },
309
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310SRST
311``trace-file on|off|flush``
312 Open, close, or flush the trace file. If no argument is given, the
313 status of the trace file is displayed.
314ERST
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315#endif
316
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317 {
318 .name = "log",
319 .args_type = "items:s",
d7f9b689 320 .params = "item1[,...]",
989b697d 321 .help = "activate logging of the specified items",
2b9e3576 322 .cmd = hmp_log,
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323 },
324
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325SRST
326``log`` *item1*\ [,...]
327 Activate logging of the specified items.
328ERST
2313086a 329
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330 {
331 .name = "savevm",
332 .args_type = "name:s?",
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333 .params = "tag",
334 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
2b9e3576 335 .cmd = hmp_savevm,
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336 },
337
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338SRST
339``savevm`` *tag*
340 Create a snapshot of the whole virtual machine. If *tag* is
341 provided, it is used as human readable identifier. If there is already
342 a snapshot with the same tag, it is replaced. More info at
343 :ref:`vm_005fsnapshots`.
344
345 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
346 only *tag* as parameter.
347ERST
2313086a 348
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349 {
350 .name = "loadvm",
351 .args_type = "name:s",
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352 .params = "tag",
353 .help = "restore a VM snapshot from its tag",
2b9e3576 354 .cmd = hmp_loadvm,
b21631f3 355 .command_completion = loadvm_completion,
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356 },
357
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358SRST
359``loadvm`` *tag*
360 Set the whole virtual machine to the snapshot identified by the tag
361 *tag*.
362
363 Since 4.0, loadvm stopped accepting snapshot id as parameter.
364ERST
2313086a 365
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366 {
367 .name = "delvm",
368 .args_type = "name:s",
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369 .params = "tag",
370 .help = "delete a VM snapshot from its tag",
2b9e3576 371 .cmd = hmp_delvm,
b21631f3 372 .command_completion = delvm_completion,
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373 },
374
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375SRST
376``delvm`` *tag*
377 Delete the snapshot identified by *tag*.
378
379 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
380 only *tag* as parameter.
381ERST
2313086a 382
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383 {
384 .name = "one-insn-per-tb",
385 .args_type = "option:s?",
386 .params = "[on|off]",
387 .help = "run emulation with one guest instruction per translation block",
388 .cmd = hmp_one_insn_per_tb,
389 },
390
391SRST
392``one-insn-per-tb [off]``
393 Run the emulation with one guest instruction per translation block.
394 This slows down emulation a lot, but can be useful in some situations,
395 such as when trying to analyse the logs produced by the ``-d`` option.
396 This only has an effect when using TCG, not with KVM or other accelerators.
397
398 If called with option off, the emulation returns to normal mode.
399ERST
400
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401 {
402 .name = "singlestep",
403 .args_type = "option:s?",
d7f9b689 404 .params = "[on|off]",
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405 .help = "deprecated synonym for one-insn-per-tb",
406 .cmd = hmp_one_insn_per_tb,
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407 },
408
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409SRST
410``singlestep [off]``
e9ccfdd9 411 This is a deprecated synonym for the one-insn-per-tb command.
a6b30bca 412ERST
2313086a 413
d7f9b689 414 {
de4cf848 415 .name = "stop|s",
d7f9b689 416 .args_type = "",
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417 .params = "",
418 .help = "stop emulation",
2b9e3576 419 .cmd = hmp_stop,
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420 },
421
a6b30bca 422SRST
de4cf848 423``stop`` or ``s``
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424 Stop emulation.
425ERST
2313086a 426
d7f9b689 427 {
ff688cd2 428 .name = "cont|c",
d7f9b689 429 .args_type = "",
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430 .params = "",
431 .help = "resume emulation",
2b9e3576 432 .cmd = hmp_cont,
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433 },
434
a6b30bca 435SRST
ff688cd2 436``cont`` or ``c``
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437 Resume emulation.
438ERST
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439
440 {
441 .name = "system_wakeup",
442 .args_type = "",
443 .params = "",
444 .help = "wakeup guest from suspend",
2b9e3576 445 .cmd = hmp_system_wakeup,
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446 },
447
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448SRST
449``system_wakeup``
450 Wakeup guest from suspend.
451ERST
2313086a 452
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453 {
454 .name = "gdbserver",
455 .args_type = "device:s?",
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456 .params = "[device]",
457 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
2b9e3576 458 .cmd = hmp_gdbserver,
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459 },
460
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461SRST
462``gdbserver`` [*port*]
463 Start gdbserver session (default *port*\=1234)
464ERST
2313086a 465
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466 {
467 .name = "x",
468 .args_type = "fmt:/,addr:l",
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469 .params = "/fmt addr",
470 .help = "virtual memory dump starting at 'addr'",
2b9e3576 471 .cmd = hmp_memory_dump,
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472 },
473
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474SRST
475``x/``\ *fmt* *addr*
476 Virtual memory dump starting at *addr*.
477ERST
2313086a 478
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479 {
480 .name = "xp",
481 .args_type = "fmt:/,addr:l",
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482 .params = "/fmt addr",
483 .help = "physical memory dump starting at 'addr'",
2b9e3576 484 .cmd = hmp_physical_memory_dump,
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485 },
486
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487SRST
488``xp /``\ *fmt* *addr*
489 Physical memory dump starting at *addr*.
490
491 *fmt* is a format which tells the command how to format the
492 data. Its syntax is: ``/{count}{format}{size}``
493
494 *count*
495 is the number of items to be dumped.
496 *format*
497 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
498 c (char) or i (asm instruction).
499 *size*
500 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
501 ``h`` or ``w`` can be specified with the ``i`` format to
502 respectively select 16 or 32 bit code instruction size.
503
504 Examples:
505
506 Dump 10 instructions at the current instruction pointer::
507
508 (qemu) x/10i $eip
509 0x90107063: ret
510 0x90107064: sti
511 0x90107065: lea 0x0(%esi,1),%esi
512 0x90107069: lea 0x0(%edi,1),%edi
513 0x90107070: ret
514 0x90107071: jmp 0x90107080
515 0x90107073: nop
516 0x90107074: nop
517 0x90107075: nop
518 0x90107076: nop
519
520 Dump 80 16 bit values at the start of the video memory::
521
522 (qemu) xp/80hx 0xb8000
523 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
524 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
525 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
526 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
527 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
528 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
529 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
530 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
531 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
532 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
533
534ERST
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535
536 {
537 .name = "gpa2hva",
538 .args_type = "addr:l",
539 .params = "addr",
540 .help = "print the host virtual address corresponding to a guest physical address",
541 .cmd = hmp_gpa2hva,
542 },
543
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544SRST
545``gpa2hva`` *addr*
546 Print the host virtual address at which the guest's physical address *addr*
547 is mapped.
548ERST
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549
550#ifdef CONFIG_LINUX
551 {
552 .name = "gpa2hpa",
553 .args_type = "addr:l",
554 .params = "addr",
555 .help = "print the host physical address corresponding to a guest physical address",
556 .cmd = hmp_gpa2hpa,
557 },
558#endif
559
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560SRST
561``gpa2hpa`` *addr*
562 Print the host physical address at which the guest's physical address *addr*
563 is mapped.
564ERST
574d9693
DDAG
565
566 {
567 .name = "gva2gpa",
568 .args_type = "addr:l",
569 .params = "addr",
570 .help = "print the guest physical address corresponding to a guest virtual address",
571 .cmd = hmp_gva2gpa,
572 },
573
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574SRST
575``gva2gpa`` *addr*
576 Print the guest physical address at which the guest's virtual address *addr*
577 is mapped based on the mapping for the current CPU.
578ERST
2313086a 579
d7f9b689 580 {
ff688cd2 581 .name = "print|p",
d7f9b689 582 .args_type = "fmt:/,val:l",
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583 .params = "/fmt expr",
584 .help = "print expression value (use $reg for CPU register access)",
cbf81997 585 .cmd = hmp_print,
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586 },
587
a6b30bca 588SRST
ff688cd2 589``print`` or ``p/``\ *fmt* *expr*
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590 Print expression value. Only the *format* part of *fmt* is
591 used.
592ERST
2313086a 593
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594 {
595 .name = "i",
596 .args_type = "fmt:/,addr:i,index:i.",
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597 .params = "/fmt addr",
598 .help = "I/O port read",
2b9e3576 599 .cmd = hmp_ioport_read,
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600 },
601
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602SRST
603``i/``\ *fmt* *addr* [.\ *index*\ ]
604 Read I/O port.
605ERST
2313086a 606
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607 {
608 .name = "o",
609 .args_type = "fmt:/,addr:i,val:i",
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610 .params = "/fmt addr value",
611 .help = "I/O port write",
2b9e3576 612 .cmd = hmp_ioport_write,
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613 },
614
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615SRST
616``o/``\ *fmt* *addr* *val*
617 Write to I/O port.
618ERST
2313086a 619
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620 {
621 .name = "sendkey",
2ef20c15 622 .args_type = "keys:s,hold-time:i?",
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623 .params = "keys [hold_ms]",
624 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
2b9e3576 625 .cmd = hmp_sendkey,
29136cd8 626 .command_completion = sendkey_completion,
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627 },
628
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629SRST
630``sendkey`` *keys*
631 Send *keys* to the guest. *keys* could be the name of the
632 key or the raw value in hexadecimal format. Use ``-`` to press
633 several keys simultaneously. Example::
634
635 sendkey ctrl-alt-f1
636
637 This command is useful to send keys that your graphical user interface
638 intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
639ERST
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EC
640 {
641 .name = "sync-profile",
642 .args_type = "op:s?",
643 .params = "[on|off|reset]",
644 .help = "enable, disable or reset synchronization profiling. "
645 "With no arguments, prints whether profiling is on or off.",
646 .cmd = hmp_sync_profile,
647 },
648
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649SRST
650``sync-profile [on|off|reset]``
651 Enable, disable or reset synchronization profiling. With no arguments, prints
652 whether profiling is on or off.
653ERST
2313086a 654
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655 {
656 .name = "system_reset",
657 .args_type = "",
d7f9b689
LC
658 .params = "",
659 .help = "reset the system",
2b9e3576 660 .cmd = hmp_system_reset,
d7f9b689
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661 },
662
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663SRST
664``system_reset``
665 Reset the system.
666ERST
2313086a 667
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668 {
669 .name = "system_powerdown",
670 .args_type = "",
d7f9b689
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671 .params = "",
672 .help = "send system power down event",
2b9e3576 673 .cmd = hmp_system_powerdown,
d7f9b689
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674 },
675
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676SRST
677``system_powerdown``
678 Power down the system (if supported).
679ERST
2313086a 680
d7f9b689
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681 {
682 .name = "sum",
683 .args_type = "start:i,size:i",
d7f9b689
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684 .params = "addr size",
685 .help = "compute the checksum of a memory region",
2b9e3576 686 .cmd = hmp_sum,
d7f9b689
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687 },
688
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689SRST
690``sum`` *addr* *size*
691 Compute the checksum of a memory region.
692ERST
2313086a 693
d7f9b689
LC
694 {
695 .name = "device_add",
c7e4e8ce
MA
696 .args_type = "device:O",
697 .params = "driver[,prop=value][,...]",
d7f9b689 698 .help = "add device, like -device on the command line",
2b9e3576 699 .cmd = hmp_device_add,
2da1b3ab 700 .command_completion = device_add_completion,
d7f9b689
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701 },
702
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703SRST
704``device_add`` *config*
705 Add device.
706ERST
3418bd25 707
d7f9b689
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708 {
709 .name = "device_del",
710 .args_type = "id:s",
d7f9b689
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711 .params = "device",
712 .help = "remove device",
2b9e3576 713 .cmd = hmp_device_del,
2da1b3ab 714 .command_completion = device_del_completion,
d7f9b689
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715 },
716
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717SRST
718``device_del`` *id*
719 Remove device *id*. *id* may be a short ID
720 or a QOM object path.
721ERST
3418bd25 722
d7f9b689
LC
723 {
724 .name = "cpu",
725 .args_type = "index:i",
d7f9b689
LC
726 .params = "index",
727 .help = "set the default CPU",
2b9e3576 728 .cmd = hmp_cpu,
d7f9b689 729 },
3418bd25 730
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731SRST
732``cpu`` *index*
733 Set the default CPU.
734ERST
2313086a 735
d7f9b689
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736 {
737 .name = "mouse_move",
738 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
d7f9b689
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739 .params = "dx dy [dz]",
740 .help = "send mouse move events",
2b9e3576 741 .cmd = hmp_mouse_move,
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742 },
743
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744SRST
745``mouse_move`` *dx* *dy* [*dz*]
746 Move the active mouse to the specified coordinates *dx* *dy*
747 with optional scroll axis *dz*.
748ERST
2313086a 749
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750 {
751 .name = "mouse_button",
752 .args_type = "button_state:i",
d7f9b689
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753 .params = "state",
754 .help = "change mouse button state (1=L, 2=M, 4=R)",
2b9e3576 755 .cmd = hmp_mouse_button,
d7f9b689
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756 },
757
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758SRST
759``mouse_button`` *val*
760 Change the active mouse button state *val* (1=L, 2=M, 4=R).
761ERST
2313086a 762
d7f9b689
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763 {
764 .name = "mouse_set",
765 .args_type = "index:i",
d7f9b689
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766 .params = "index",
767 .help = "set which mouse device receives events",
2b9e3576 768 .cmd = hmp_mouse_set,
d7f9b689
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769 },
770
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771SRST
772``mouse_set`` *index*
773 Set which mouse device receives events at given *index*, index
774 can be obtained with::
775
776 info mice
777
778ERST
2313086a 779
d7f9b689
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780 {
781 .name = "wavcapture",
f0b9f36d
KZ
782 .args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
783 .params = "path audiodev [frequency [bits [channels]]]",
d7f9b689 784 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
2b9e3576 785 .cmd = hmp_wavcapture,
d7f9b689 786 },
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787SRST
788``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
789 Capture audio into *filename* from *audiodev*, using sample rate
790 *frequency* bits per sample *bits* and number of channels
791 *channels*.
792
793 Defaults:
794
795 - Sample rate = 44100 Hz - CD quality
796 - Bits = 16
797 - Number of channels = 2 - Stereo
798ERST
2313086a 799
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800 {
801 .name = "stopcapture",
802 .args_type = "n:i",
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803 .params = "capture index",
804 .help = "stop capture",
2b9e3576 805 .cmd = hmp_stopcapture,
d7f9b689 806 },
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807SRST
808``stopcapture`` *index*
809 Stop capture with a given *index*, index can be obtained with::
810
811 info capture
812
813ERST
2313086a 814
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815 {
816 .name = "memsave",
817 .args_type = "val:l,size:i,filename:s",
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818 .params = "addr size file",
819 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
2b9e3576 820 .cmd = hmp_memsave,
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821 },
822
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823SRST
824``memsave`` *addr* *size* *file*
825 save to disk virtual memory dump starting at *addr* of size *size*.
826ERST
2313086a 827
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828 {
829 .name = "pmemsave",
830 .args_type = "val:l,size:i,filename:s",
d7f9b689
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831 .params = "addr size file",
832 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
2b9e3576 833 .cmd = hmp_pmemsave,
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834 },
835
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836SRST
837``pmemsave`` *addr* *size* *file*
838 save to disk physical memory dump starting at *addr* of size *size*.
839ERST
2313086a 840
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841 {
842 .name = "boot_set",
843 .args_type = "bootdevice:s",
d7f9b689
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844 .params = "bootdevice",
845 .help = "define new values for the boot device list",
2b9e3576 846 .cmd = hmp_boot_set,
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847 },
848
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849SRST
850``boot_set`` *bootdevicelist*
851 Define new values for the boot device list. Those values will override
852 the values specified on the command line through the ``-boot`` option.
853
854 The values that can be specified here depend on the machine type, but are
855 the same that can be specified in the ``-boot`` command line option.
856ERST
2313086a 857
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858 {
859 .name = "nmi",
e9b4b432
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860 .args_type = "",
861 .params = "",
9cb805fd 862 .help = "inject an NMI",
2b9e3576 863 .cmd = hmp_nmi,
d7f9b689 864 },
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865SRST
866``nmi`` *cpu*
867 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
868ERST
1f590cf9
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869
870 {
3949e594 871 .name = "ringbuf_write",
1f590cf9
LL
872 .args_type = "device:s,data:s",
873 .params = "device data",
3949e594 874 .help = "Write to a ring buffer character device",
2b9e3576 875 .cmd = hmp_ringbuf_write,
8e597779 876 .command_completion = ringbuf_write_completion,
1f590cf9
LL
877 },
878
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879SRST
880``ringbuf_write`` *device* *data*
881 Write *data* to ring buffer character device *device*.
882 *data* must be a UTF-8 string.
883ERST
49b6d722
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884
885 {
3949e594 886 .name = "ringbuf_read",
49b6d722
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887 .args_type = "device:s,size:i",
888 .params = "device size",
3949e594 889 .help = "Read from a ring buffer character device",
2b9e3576 890 .cmd = hmp_ringbuf_read,
8e597779 891 .command_completion = ringbuf_write_completion,
49b6d722
LL
892 },
893
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894SRST
895``ringbuf_read`` *device*
896 Read and print up to *size* bytes from ring buffer character
897 device *device*.
898 Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
899 character code in hexadecimal. Character ``\`` is printed ``\\``.
900 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
901 NUL characters, after the ring buffer lost data, and when reading
902 stops because the size limit is reached.
903ERST
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904
905 {
906 .name = "announce_self",
c6644548
DDAG
907 .args_type = "interfaces:s?,id:s?",
908 .params = "[interfaces] [id]",
544f6ea3
DDAG
909 .help = "Trigger GARP/RARP announcements",
910 .cmd = hmp_announce_self,
911 },
912
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913SRST
914``announce_self``
915 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
916 updating the network infrastructure after a reconfiguration or some forms
917 of migration. The timings of the round are set by the migration announce
918 parameters. An optional comma separated *interfaces* list restricts the
919 announce to the named set of interfaces. An optional *id* can be used to
920 start a separate announce timer and to change the parameters of it later.
921ERST
2313086a 922
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923 {
924 .name = "migrate",
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925 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
926 .params = "[-d] [-b] [-i] [-r] uri",
fbc3d96c
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927 .help = "migrate to URI (using -d to not wait for completion)"
928 "\n\t\t\t -b for migration without shared storage with"
929 " full copy of disk\n\t\t\t -i for migration without "
930 "shared storage with incremental copy of disk "
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931 "(base image shared between src and destination)"
932 "\n\t\t\t -r to resume a paused migration",
2b9e3576 933 .cmd = hmp_migrate,
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934 },
935
fbc3d96c 936
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937SRST
938``migrate [-d] [-b] [-i]`` *uri*
939 Migrate to *uri* (using -d to not wait for completion).
940
941 ``-b``
942 for migration with full copy of disk
943 ``-i``
944 for migration with incremental copy of disk (base image is shared)
945ERST
2313086a 946
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947 {
948 .name = "migrate_cancel",
949 .args_type = "",
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950 .params = "",
951 .help = "cancel the current VM migration",
2b9e3576 952 .cmd = hmp_migrate_cancel,
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953 },
954
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955SRST
956``migrate_cancel``
957 Cancel the current VM migration.
958ERST
9e1ba4cc 959
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960 {
961 .name = "migrate_continue",
962 .args_type = "state:s",
963 .params = "state",
964 .help = "Continue migration from the given paused state",
965 .cmd = hmp_migrate_continue,
966 },
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967SRST
968``migrate_continue`` *state*
969 Continue migration from the paused state *state*
970ERST
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971
972 {
973 .name = "migrate_incoming",
974 .args_type = "uri:s",
975 .params = "uri",
976 .help = "Continue an incoming migration from an -incoming defer",
2b9e3576 977 .cmd = hmp_migrate_incoming,
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DDAG
978 },
979
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980SRST
981``migrate_incoming`` *uri*
982 Continue an incoming migration using the *uri* (that has the same syntax
983 as the ``-incoming`` option).
984ERST
bf1ae1f4 985
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986 {
987 .name = "migrate_recover",
988 .args_type = "uri:s",
989 .params = "uri",
990 .help = "Continue a paused incoming postcopy migration",
991 .cmd = hmp_migrate_recover,
992 },
993
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994SRST
995``migrate_recover`` *uri*
996 Continue a paused incoming postcopy migration using the *uri*.
997ERST
d37297dc
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998
999 {
1000 .name = "migrate_pause",
1001 .args_type = "",
1002 .params = "",
1003 .help = "Pause an ongoing migration (postcopy-only)",
1004 .cmd = hmp_migrate_pause,
1005 },
1006
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1007SRST
1008``migrate_pause``
1009 Pause an ongoing migration. Currently it only supports postcopy.
1010ERST
9e1ba4cc 1011
00458433
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1012 {
1013 .name = "migrate_set_capability",
1014 .args_type = "capability:s,state:b",
1015 .params = "capability state",
1016 .help = "Enable/Disable the usage of a capability for migration",
2b9e3576 1017 .cmd = hmp_migrate_set_capability,
c68a0409 1018 .command_completion = migrate_set_capability_completion,
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1019 },
1020
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1021SRST
1022``migrate_set_capability`` *capability* *state*
1023 Enable/Disable the usage of a capability *capability* for migration.
1024ERST
50e9a629
LL
1025
1026 {
1027 .name = "migrate_set_parameter",
69ef1f36 1028 .args_type = "parameter:s,value:s",
50e9a629
LL
1029 .params = "parameter value",
1030 .help = "Set the parameter for migration",
2b9e3576 1031 .cmd = hmp_migrate_set_parameter,
50e9a629
LL
1032 .command_completion = migrate_set_parameter_completion,
1033 },
1034
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1035SRST
1036``migrate_set_parameter`` *parameter* *value*
1037 Set the parameter *parameter* for migration.
1038ERST
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1039
1040 {
1041 .name = "migrate_start_postcopy",
1042 .args_type = "",
1043 .params = "",
a54d340b 1044 .help = "Followup to a migration command to switch the migration"
32c3db5b 1045 " to postcopy mode. The postcopy-ram capability must "
c2eb7f21
GK
1046 "be set on both source and destination before the "
1047 "original migration command .",
2b9e3576 1048 .cmd = hmp_migrate_start_postcopy,
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1049 },
1050
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1051SRST
1052``migrate_start_postcopy``
1053 Switch in-progress migration to postcopy mode. Ignored after the end of
1054 migration (or once already in postcopy).
1055ERST
d89e666e 1056
51e47cf8 1057#ifdef CONFIG_REPLICATION
d89e666e
HZ
1058 {
1059 .name = "x_colo_lost_heartbeat",
1060 .args_type = "",
1061 .params = "",
1062 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1063 "a failover or takeover is needed.",
1064 .cmd = hmp_x_colo_lost_heartbeat,
1065 },
51e47cf8 1066#endif
d89e666e 1067
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1068SRST
1069``x_colo_lost_heartbeat``
1070 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1071ERST
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1072
1073 {
2ea720db
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1074 .name = "client_migrate_info",
1075 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1076 .params = "protocol hostname port tls-port cert-subject",
13cadefb 1077 .help = "set migration information for remote display",
2b9e3576 1078 .cmd = hmp_client_migrate_info,
f8882568
JS
1079 },
1080
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1081SRST
1082``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1083 Set migration information for remote display. This makes the server
1084 ask the client to automatically reconnect using the new parameters
1085 once migration finished successfully. Only implemented for SPICE.
1086ERST
e866e239 1087
783e9b48
WC
1088 {
1089 .name = "dump-guest-memory",
e6549197
SB
1090 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,raw:-R,filename:F,begin:l?,length:l?",
1091 .params = "[-p] [-d] [-z|-l|-s|-w] [-R] filename [begin length]",
c20499d9
QN
1092 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1093 "-p: do paging to get guest's memory mapping.\n\t\t\t"
228de9cf 1094 "-d: return immediately (do not wait for completion).\n\t\t\t"
1b7a0f75
QN
1095 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1096 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1097 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
e6549197
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1098 "-R: when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened\n\t\t\t"
1099 " format\n\t\t\t"
2da91b54 1100 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
f5daa829 1101 " for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
c20499d9
QN
1102 "begin: the starting physical address.\n\t\t\t"
1103 "length: the memory size, in bytes.",
2b9e3576 1104 .cmd = hmp_dump_guest_memory,
783e9b48
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1105 },
1106
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1107SRST
1108``dump-guest-memory [-p]`` *filename* *begin* *length*
1109 \
1110``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1111 Dump guest memory to *protocol*. The file can be processed with crash or
1112 gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1113
1114 ``-p``
1115 do paging to get guest's memory mapping.
1116 ``-z``
1117 dump in kdump-compressed format, with zlib compression.
1118 ``-l``
1119 dump in kdump-compressed format, with lzo compression.
1120 ``-s``
1121 dump in kdump-compressed format, with snappy compression.
e6549197
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1122 ``-R``
1123 when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened
1124 format
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1125 ``-w``
1126 dump in Windows crashdump format (can be used instead of ELF-dump converting),
1127 for Windows x64 guests with vmcoreinfo driver only
1128 *filename*
1129 dump file name.
1130 *begin*
1131 the starting physical address. It's optional, and should be
1132 specified together with *length*.
1133 *length*
1134 the memory size, in bytes. It's optional, and should be specified
1135 together with *begin*.
1136
1137ERST
783e9b48 1138
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1139#if defined(TARGET_S390X)
1140 {
1141 .name = "dump-skeys",
1142 .args_type = "filename:F",
1143 .params = "",
1144 .help = "Save guest storage keys into file 'filename'.\n",
2b9e3576 1145 .cmd = hmp_dump_skeys,
a4538a5c
JH
1146 },
1147#endif
1148
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1149SRST
1150``dump-skeys`` *filename*
1151 Save guest storage keys to a file.
1152ERST
f860d497
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1153
1154#if defined(TARGET_S390X)
1155 {
1156 .name = "migration_mode",
1157 .args_type = "mode:i",
1158 .params = "mode",
1159 .help = "Enables or disables migration mode\n",
1160 .cmd = hmp_migrationmode,
1161 },
1162#endif
1163
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1164SRST
1165``migration_mode`` *mode*
1166 Enables or disables migration mode.
1167ERST
a4538a5c 1168
e866e239 1169 {
2ea720db 1170 .name = "snapshot_blkdev",
6cc2a415
PB
1171 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1172 .params = "[-n] device [new-image-file] [format]",
2ea720db
JS
1173 .help = "initiates a live snapshot\n\t\t\t"
1174 "of device. If a new image file is specified, the\n\t\t\t"
1175 "new image file will become the new root image.\n\t\t\t"
1176 "If format is specified, the snapshot file will\n\t\t\t"
775ca88e 1177 "be created in that format.\n\t\t\t"
6cc2a415
PB
1178 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1179 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1180 "recreating it from scratch.",
2b9e3576 1181 .cmd = hmp_snapshot_blkdev,
e866e239
GH
1182 },
1183
a6b30bca
PM
1184SRST
1185``snapshot_blkdev``
1186 Snapshot device, using snapshot file as target if provided
1187ERST
775ca88e
WX
1188
1189 {
1190 .name = "snapshot_blkdev_internal",
1191 .args_type = "device:B,name:s",
1192 .params = "device name",
1193 .help = "take an internal snapshot of device.\n\t\t\t"
1194 "The format of the image used by device must\n\t\t\t"
1195 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1196 .cmd = hmp_snapshot_blkdev_internal,
775ca88e
WX
1197 },
1198
a6b30bca
PM
1199SRST
1200``snapshot_blkdev_internal``
1201 Take an internal snapshot on device if it support
1202ERST
7a4ed2ee
WX
1203
1204 {
1205 .name = "snapshot_delete_blkdev_internal",
1206 .args_type = "device:B,name:s,id:s?",
1207 .params = "device name [id]",
1208 .help = "delete an internal snapshot of device.\n\t\t\t"
1209 "If id is specified, qemu will try delete\n\t\t\t"
1210 "the snapshot matching both id and name.\n\t\t\t"
1211 "The format of the image used by device must\n\t\t\t"
1212 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1213 .cmd = hmp_snapshot_delete_blkdev_internal,
7a4ed2ee
WX
1214 },
1215
a6b30bca
PM
1216SRST
1217``snapshot_delete_blkdev_internal``
1218 Delete an internal snapshot on device if it support
1219ERST
d9b902db
PB
1220
1221 {
1222 .name = "drive_mirror",
1223 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1224 .params = "[-n] [-f] device target [format]",
1225 .help = "initiates live storage\n\t\t\t"
1226 "migration for a device. The device's contents are\n\t\t\t"
1227 "copied to the new image file, including data that\n\t\t\t"
1228 "is written after the command is started.\n\t\t\t"
1229 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1230 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1231 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1232 "so that the result does not need a backing file.\n\t\t\t",
2b9e3576 1233 .cmd = hmp_drive_mirror,
d9b902db 1234 },
a6b30bca
PM
1235SRST
1236``drive_mirror``
1237 Start mirroring a block device's writes to a new destination,
1238 using the specified target.
1239ERST
de90930a
SH
1240
1241 {
1242 .name = "drive_backup",
13b9414b
PB
1243 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1244 .params = "[-n] [-f] [-c] device target [format]",
de90930a
SH
1245 .help = "initiates a point-in-time\n\t\t\t"
1246 "copy for a device. The device's contents are\n\t\t\t"
1247 "copied to the new image file, excluding data that\n\t\t\t"
1248 "is written after the command is started.\n\t\t\t"
1249 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1250 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1251 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
13b9414b
PB
1252 "so that the result does not need a backing file.\n\t\t\t"
1253 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1254 "(if the target format supports it).\n\t\t\t",
2b9e3576 1255 .cmd = hmp_drive_backup,
de90930a 1256 },
a6b30bca
PM
1257SRST
1258``drive_backup``
e3a6e0da 1259 Start a point-in-time copy of a block device to a specified target.
a6b30bca 1260ERST
2313086a 1261
d7f9b689
LC
1262 {
1263 .name = "drive_add",
abb21ac3
KW
1264 .args_type = "node:-n,pci_addr:s,opts:s",
1265 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
d7f9b689 1266 "[file=file][,if=type][,bus=n]\n"
fb0490f6 1267 "[,unit=m][,media=d][,index=i]\n"
fb0490f6
SH
1268 "[,snapshot=on|off][,cache=on|off]\n"
1269 "[,readonly=on|off][,copy-on-read=on|off]",
d7f9b689 1270 .help = "add drive to PCI storage controller",
2b9e3576 1271 .cmd = hmp_drive_add,
d7f9b689 1272 },
d7f9b689 1273
a6b30bca
PM
1274SRST
1275``drive_add``
1276 Add drive to PCI storage controller.
1277ERST
2ae63bda
IY
1278
1279 {
1280 .name = "pcie_aer_inject_error",
1281 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1282 "id:s,error_status:s,"
1283 "header0:i?,header1:i?,header2:i?,header3:i?,"
1284 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1285 .params = "[-a] [-c] id "
1286 "<error_status> [<tlp header> [<tlp header prefix>]]",
1287 .help = "inject pcie aer error\n\t\t\t"
1288 " -a for advisory non fatal error\n\t\t\t"
1289 " -c for correctable error\n\t\t\t"
1290 "<id> = qdev device id\n\t\t\t"
1291 "<error_status> = error string or 32bit\n\t\t\t"
8ad4e451
ZY
1292 "<tlp header> = 32bit x 4\n\t\t\t"
1293 "<tlp header prefix> = 32bit x 4",
2b9e3576 1294 .cmd = hmp_pcie_aer_inject_error,
2ae63bda
IY
1295 },
1296
a6b30bca
PM
1297SRST
1298``pcie_aer_inject_error``
1299 Inject PCIe AER error
1300ERST
ae82d324
MA
1301
1302 {
1303 .name = "netdev_add",
1304 .args_type = "netdev:O",
5166fe0a 1305 .params = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
cb039ef3
IM
1306#ifdef CONFIG_AF_XDP
1307 "|af-xdp"
1308#endif
fd8c8c05
VY
1309#ifdef CONFIG_VMNET
1310 "|vmnet-host|vmnet-shared|vmnet-bridged"
1311#endif
1312 "],id=str[,prop=value][,...]",
ae82d324 1313 .help = "add host network device",
2b9e3576 1314 .cmd = hmp_netdev_add,
b162b49a 1315 .command_completion = netdev_add_completion,
48f596c5 1316 .flags = "p",
ae82d324
MA
1317 },
1318
a6b30bca
PM
1319SRST
1320``netdev_add``
1321 Add host network device.
1322ERST
ae82d324
MA
1323
1324 {
1325 .name = "netdev_del",
1326 .args_type = "id:s",
1327 .params = "id",
1328 .help = "remove host network device",
2b9e3576 1329 .cmd = hmp_netdev_del,
11b389f2 1330 .command_completion = netdev_del_completion,
48f596c5 1331 .flags = "p",
ae82d324
MA
1332 },
1333
a6b30bca
PM
1334SRST
1335``netdev_del``
1336 Remove host network device.
1337ERST
cff8b2c6
PB
1338
1339 {
1340 .name = "object_add",
da0a932b 1341 .args_type = "object:S",
cff8b2c6
PB
1342 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1343 .help = "create QOM object",
2b9e3576 1344 .cmd = hmp_object_add,
bfa40f77 1345 .command_completion = object_add_completion,
9e33013b 1346 .flags = "p",
cff8b2c6
PB
1347 },
1348
a6b30bca
PM
1349SRST
1350``object_add``
1351 Create QOM object.
1352ERST
ab2d0531
PB
1353
1354 {
1355 .name = "object_del",
1356 .args_type = "id:s",
1357 .params = "id",
1358 .help = "destroy QOM object",
2b9e3576 1359 .cmd = hmp_object_del,
bfa40f77 1360 .command_completion = object_del_completion,
9e33013b 1361 .flags = "p",
ab2d0531
PB
1362 },
1363
a6b30bca
PM
1364SRST
1365``object_del``
1366 Destroy QOM object.
1367ERST
2313086a
BS
1368
1369#ifdef CONFIG_SLIRP
d7f9b689
LC
1370 {
1371 .name = "hostfwd_add",
b4983c57
TH
1372 .args_type = "arg1:s,arg2:s?",
1373 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
d7f9b689 1374 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
2b9e3576 1375 .cmd = hmp_hostfwd_add,
d7f9b689 1376 },
21413d68 1377#endif
a6b30bca
PM
1378SRST
1379``hostfwd_add``
1380 Redirect TCP or UDP connections from host to guest (requires -net user).
1381ERST
d7f9b689 1382
21413d68 1383#ifdef CONFIG_SLIRP
d7f9b689
LC
1384 {
1385 .name = "hostfwd_remove",
b4983c57
TH
1386 .args_type = "arg1:s,arg2:s?",
1387 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
d7f9b689 1388 .help = "remove host-to-guest TCP or UDP redirection",
2b9e3576 1389 .cmd = hmp_hostfwd_remove,
d7f9b689
LC
1390 },
1391
2313086a 1392#endif
a6b30bca
PM
1393SRST
1394``hostfwd_remove``
1395 Remove host-to-guest TCP or UDP redirection.
1396ERST
2313086a 1397
d7f9b689
LC
1398 {
1399 .name = "balloon",
3b0bd6ec 1400 .args_type = "value:M",
d7f9b689 1401 .params = "target",
3c05613a 1402 .help = "request VM to change its memory allocation (in MB)",
2b9e3576 1403 .cmd = hmp_balloon,
d7f9b689
LC
1404 },
1405
a6b30bca
PM
1406SRST
1407``balloon`` *value*
1408 Request VM to change its memory allocation to *value* (in MB).
1409ERST
2313086a 1410
d7f9b689
LC
1411 {
1412 .name = "set_link",
c9b26a4c
MA
1413 .args_type = "name:s,up:b",
1414 .params = "name on|off",
d7f9b689 1415 .help = "change the link status of a network adapter",
2b9e3576 1416 .cmd = hmp_set_link,
40d19394 1417 .command_completion = set_link_completion,
d7f9b689
LC
1418 },
1419
a6b30bca
PM
1420SRST
1421``set_link`` *name* ``[on|off]``
1422 Switch link *name* on (i.e. up) or off (i.e. down).
1423ERST
2313086a 1424
d7f9b689
LC
1425 {
1426 .name = "watchdog_action",
1427 .args_type = "action:s",
d7f9b689
LC
1428 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1429 .help = "change watchdog action",
2b9e3576 1430 .cmd = hmp_watchdog_action,
d0ece345 1431 .command_completion = watchdog_action_completion,
d7f9b689
LC
1432 },
1433
a6b30bca
PM
1434SRST
1435``watchdog_action``
1436 Change watchdog action.
1437ERST
2313086a 1438
4057725f
PB
1439 {
1440 .name = "nbd_server_start",
1441 .args_type = "all:-a,writable:-w,uri:s",
1442 .params = "nbd_server_start [-a] [-w] host:port",
1443 .help = "serve block devices on the given host and port",
2b9e3576 1444 .cmd = hmp_nbd_server_start,
f55ba801 1445 .flags = "p",
4057725f 1446 },
a6b30bca
PM
1447SRST
1448``nbd_server_start`` *host*:*port*
1449 Start an NBD server on the given host and/or port. If the ``-a``
1450 option is included, all of the virtual machine's block devices that
1451 have an inserted media on them are automatically exported; in this case,
1452 the ``-w`` option makes the devices writable too.
1453ERST
4057725f
PB
1454
1455 {
1456 .name = "nbd_server_add",
dba49323
EB
1457 .args_type = "writable:-w,device:B,name:s?",
1458 .params = "nbd_server_add [-w] device [name]",
4057725f 1459 .help = "export a block device via NBD",
2b9e3576 1460 .cmd = hmp_nbd_server_add,
f55ba801 1461 .flags = "p",
4057725f 1462 },
a6b30bca
PM
1463SRST
1464``nbd_server_add`` *device* [ *name* ]
1465 Export a block device through QEMU's NBD server, which must be started
1466 beforehand with ``nbd_server_start``. The ``-w`` option makes the
1467 exported device writable too. The export name is controlled by *name*,
1468 defaulting to *device*.
1469ERST
08fb10a7
EB
1470
1471 {
1472 .name = "nbd_server_remove",
1473 .args_type = "force:-f,name:s",
1474 .params = "nbd_server_remove [-f] name",
1475 .help = "remove an export previously exposed via NBD",
1476 .cmd = hmp_nbd_server_remove,
f55ba801 1477 .flags = "p",
08fb10a7 1478 },
a6b30bca
PM
1479SRST
1480``nbd_server_remove [-f]`` *name*
1481 Stop exporting a block device through QEMU's NBD server, which was
1482 previously started with ``nbd_server_add``. The ``-f``
1483 option forces the server to drop the export immediately even if
1484 clients are connected; otherwise the command fails unless there are no
1485 clients.
1486ERST
4057725f
PB
1487
1488 {
1489 .name = "nbd_server_stop",
1490 .args_type = "",
1491 .params = "nbd_server_stop",
1492 .help = "stop serving block devices using the NBD protocol",
2b9e3576 1493 .cmd = hmp_nbd_server_stop,
f55ba801 1494 .flags = "p",
4057725f 1495 },
a6b30bca
PM
1496SRST
1497``nbd_server_stop``
1498 Stop the QEMU embedded NBD server.
1499ERST
4057725f
PB
1500
1501
79c4f6b0 1502#if defined(TARGET_I386)
d7f9b689
LC
1503
1504 {
1505 .name = "mce",
31ce5e0c
JD
1506 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1507 .params = "[-b] cpu bank status mcgstatus addr misc",
1508 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
2b9e3576 1509 .cmd = hmp_mce,
d7f9b689
LC
1510 },
1511
79c4f6b0 1512#endif
a6b30bca
PM
1513SRST
1514``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1515 Inject an MCE on the given CPU (x86 only).
1516ERST
f07918fd 1517
4bf21c7f 1518#ifdef CONFIG_POSIX
d7f9b689
LC
1519 {
1520 .name = "getfd",
1521 .args_type = "fdname:s",
d7f9b689
LC
1522 .params = "getfd name",
1523 .help = "receive a file descriptor via SCM rights and assign it a name",
2b9e3576 1524 .cmd = hmp_getfd,
f55ba801 1525 .flags = "p",
d7f9b689
LC
1526 },
1527
a6b30bca
PM
1528SRST
1529``getfd`` *fdname*
1530 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1531 mechanism on unix sockets, it is stored using the name *fdname* for
1532 later use by other monitor commands.
1533ERST
4bf21c7f 1534#endif
f07918fd 1535
d7f9b689
LC
1536 {
1537 .name = "closefd",
1538 .args_type = "fdname:s",
d7f9b689
LC
1539 .params = "closefd name",
1540 .help = "close a file descriptor previously passed via SCM rights",
2b9e3576 1541 .cmd = hmp_closefd,
f55ba801 1542 .flags = "p",
d7f9b689
LC
1543 },
1544
a6b30bca
PM
1545SRST
1546``closefd`` *fdname*
1547 Close the file descriptor previously assigned to *fdname* using the
1548 ``getfd`` command. This is only needed if the file descriptor was never
1549 used by another monitor command.
1550ERST
a3a55a2e 1551
727f005e
ZYW
1552 {
1553 .name = "block_set_io_throttle",
1554 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1555 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1556 .help = "change I/O throttle limits for a block drive",
2b9e3576 1557 .cmd = hmp_block_set_io_throttle,
f55ba801 1558 .flags = "p",
727f005e
ZYW
1559 },
1560
a6b30bca
PM
1561SRST
1562``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1563 Change I/O throttle limits for a block drive to
1564 *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1565 *device* can be a block device name, a qdev ID or a QOM path.
1566ERST
7572150c
GH
1567
1568 {
1569 .name = "set_password",
675fd3c9
SR
1570 .args_type = "protocol:s,password:s,display:-ds,connected:s?",
1571 .params = "protocol password [-d display] [action-if-connected]",
7572150c 1572 .help = "set spice/vnc password",
2b9e3576 1573 .cmd = hmp_set_password,
7572150c
GH
1574 },
1575
a6b30bca 1576SRST
675fd3c9
SR
1577``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1578 Change spice/vnc password. *display* can be used with 'vnc' to specify
1579 which display to set the password on. *action-if-connected* specifies
1580 what should happen in case a connection is established: *fail* makes
1581 the password change fail. *disconnect* changes the password and
8982552e
MA
1582 disconnects the client. *keep* changes the password and keeps the
1583 connection up. *keep* is the default.
a6b30bca 1584ERST
7572150c
GH
1585
1586 {
1587 .name = "expire_password",
675fd3c9
SR
1588 .args_type = "protocol:s,time:s,display:-ds",
1589 .params = "protocol time [-d display]",
7572150c 1590 .help = "set spice/vnc password expire-time",
2b9e3576 1591 .cmd = hmp_expire_password,
7572150c
GH
1592 },
1593
a6b30bca 1594SRST
675fd3c9
SR
1595``expire_password [ vnc | spice ] expire-time [ -d display ]``
1596 Specify when a password for spice/vnc becomes invalid.
1597 *display* behaves the same as in ``set_password``.
1598 *expire-time* accepts:
a6b30bca
PM
1599
1600 ``now``
1601 Invalidate password instantly.
1602 ``never``
1603 Password stays valid forever.
1604 ``+``\ *nsec*
1605 Password stays valid for *nsec* seconds starting now.
1606 *nsec*
1607 Password is invalidated at the given time. *nsec* are the seconds
1608 passed since 1970, i.e. unix epoch.
1609
1610ERST
f1088908 1611
46920825
GH
1612 {
1613 .name = "chardev-add",
1614 .args_type = "args:s",
1615 .params = "args",
1616 .help = "add chardev",
2b9e3576 1617 .cmd = hmp_chardev_add,
13e315da 1618 .command_completion = chardev_add_completion,
46920825
GH
1619 },
1620
a6b30bca
PM
1621SRST
1622``chardev-add`` *args*
1623 chardev-add accepts the same parameters as the -chardev command line switch.
1624ERST
75b60160
AN
1625
1626 {
1627 .name = "chardev-change",
1628 .args_type = "id:s,args:s",
1629 .params = "id args",
1630 .help = "change chardev",
1631 .cmd = hmp_chardev_change,
1632 },
1633
a6b30bca
PM
1634SRST
1635``chardev-change`` *args*
1636 chardev-change accepts existing chardev *id* and then the same arguments
1637 as the -chardev command line switch (except for "id").
1638ERST
46920825
GH
1639
1640 {
1641 .name = "chardev-remove",
1642 .args_type = "id:s",
1643 .params = "id",
1644 .help = "remove chardev",
2b9e3576 1645 .cmd = hmp_chardev_remove,
6297d9a2 1646 .command_completion = chardev_remove_completion,
46920825
GH
1647 },
1648
a6b30bca
PM
1649SRST
1650``chardev-remove`` *id*
1651 Removes the chardev *id*.
1652ERST
bd1d5ad9
SF
1653
1654 {
1655 .name = "chardev-send-break",
1656 .args_type = "id:s",
1657 .params = "id",
1658 .help = "send a break on chardev",
1659 .cmd = hmp_chardev_send_break,
1660 .command_completion = chardev_remove_completion,
1661 },
1662
a6b30bca
PM
1663SRST
1664``chardev-send-break`` *id*
1665 Send a break on the chardev *id*.
1666ERST
587da2c3
KW
1667
1668 {
1669 .name = "qemu-io",
89b6fc45
KW
1670 .args_type = "qdev:-d,device:B,command:s",
1671 .params = "[-d] [device] \"[command]\"",
1672 .help = "run a qemu-io command on a block device\n\t\t\t"
1673 "-d: [device] is a device ID rather than a "
1674 "drive ID or node name",
2b9e3576 1675 .cmd = hmp_qemu_io,
587da2c3
KW
1676 },
1677
a6b30bca
PM
1678SRST
1679``qemu-io`` *device* *command*
1680 Executes a qemu-io command on the given block device.
1681ERST
abf23329 1682
89d7fa9e
AF
1683 {
1684 .name = "qom-list",
1685 .args_type = "path:s?",
1686 .params = "path",
1687 .help = "list QOM properties",
2b9e3576 1688 .cmd = hmp_qom_list,
8c7c7ecb 1689 .flags = "p",
89d7fa9e
AF
1690 },
1691
a6b30bca
PM
1692SRST
1693``qom-list`` [*path*]
1694 Print QOM properties of object at location *path*
1695ERST
c0e6ee9e 1696
89cf4fe3
DDAG
1697 {
1698 .name = "qom-get",
1699 .args_type = "path:s,property:s",
1700 .params = "path property",
1701 .help = "print QOM property",
1702 .cmd = hmp_qom_get,
1703 .flags = "p",
1704 },
1705
1706SRST
1707``qom-get`` *path* *property*
1708 Print QOM property *property* of object at location *path*
1709ERST
1710
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AF
1711 {
1712 .name = "qom-set",
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DH
1713 .args_type = "json:-j,path:s,property:s,value:S",
1714 .params = "[-j] path property value",
1715 .help = "set QOM property.\n\t\t\t"
1716 "-j: the value is specified in json format.",
2b9e3576 1717 .cmd = hmp_qom_set,
8c7c7ecb 1718 .flags = "p",
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AF
1719 },
1720
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PM
1721SRST
1722``qom-set`` *path* *property* *value*
1723 Set QOM property *property* of object at location *path* to value *value*
1724ERST
b40292e7 1725
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PD
1726 {
1727 .name = "replay_break",
ae49ce00 1728 .args_type = "icount:l",
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PD
1729 .params = "icount",
1730 .help = "set breakpoint at the specified instruction count",
1731 .cmd = hmp_replay_break,
1732 },
1733
1734SRST
1735``replay_break`` *icount*
1736 Set replay breakpoint at instruction count *icount*.
1737 Execution stops when the specified instruction is reached.
1738 There can be at most one breakpoint. When breakpoint is set, any prior
1739 one is removed. The breakpoint may be set only in replay mode and only
1740 "in the future", i.e. at instruction counts greater than the current one.
1741 The current instruction count can be observed with ``info replay``.
1742ERST
1743
1744 {
1745 .name = "replay_delete_break",
1746 .args_type = "",
1747 .params = "",
1748 .help = "remove replay breakpoint",
1749 .cmd = hmp_replay_delete_break,
1750 },
1751
1752SRST
1753``replay_delete_break``
1754 Remove replay breakpoint which was previously set with ``replay_break``.
1755 The command is ignored when there are no replay breakpoints.
1756ERST
1757
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PD
1758 {
1759 .name = "replay_seek",
ae49ce00 1760 .args_type = "icount:l",
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PD
1761 .params = "icount",
1762 .help = "replay execution to the specified instruction count",
1763 .cmd = hmp_replay_seek,
1764 },
1765
1766SRST
1767``replay_seek`` *icount*
1768 Automatically proceed to the instruction count *icount*, when
1769 replaying the execution. The command automatically loads nearest
1770 snapshot and replays the execution to find the desired instruction.
1771 When there is no preceding snapshot or the execution is not replayed,
1772 then the command fails.
1773 *icount* for the reference may be observed with ``info replay`` command.
1774ERST
1775
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PX
1776 {
1777 .name = "calc_dirty_rate",
826b8bc8
HH
1778 .args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1779 .params = "[-r] [-b] second [sample_pages_per_GB]",
1780 .help = "start a round of guest dirty rate measurement (using -r to"
1781 "\n\t\t\t specify dirty ring as the method of calculation and"
1782 "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
a4a571d9
PX
1783 .cmd = hmp_calc_dirty_rate,
1784 },
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HH
1785
1786SRST
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DDAG
1787``calc_dirty_rate`` *second*
1788 Start a round of dirty rate measurement with the period specified in *second*.
1789 The result of the dirty rate measurement may be observed with ``info
1790 dirty_rate`` command.
f3b2e38c
HH
1791ERST
1792
1793 {
1794 .name = "set_vcpu_dirty_limit",
1795 .args_type = "dirty_rate:l,cpu_index:l?",
1796 .params = "dirty_rate [cpu_index]",
1797 .help = "set dirty page rate limit, use cpu_index to set limit"
1798 "\n\t\t\t\t\t on a specified virtual cpu",
1799 .cmd = hmp_set_vcpu_dirty_limit,
1800 },
1801
1802SRST
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DDAG
1803``set_vcpu_dirty_limit``
1804 Set dirty page rate limit on virtual CPU, the information about all the
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HH
1805 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1806 command.
1807ERST
1808
1809 {
1810 .name = "cancel_vcpu_dirty_limit",
1811 .args_type = "cpu_index:l?",
1812 .params = "[cpu_index]",
1813 .help = "cancel dirty page rate limit, use cpu_index to cancel"
1814 "\n\t\t\t\t\t limit on a specified virtual cpu",
1815 .cmd = hmp_cancel_vcpu_dirty_limit,
1816 },
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DDAG
1817
1818SRST
1819``cancel_vcpu_dirty_limit``
1820 Cancel dirty page rate limit on virtual CPU, the information about all the
1821 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1822 command.
1823ERST
1824
1825 {
1826 .name = "info",
1827 .args_type = "item:s?",
1828 .params = "[subcommand]",
1829 .help = "show various information about the system state",
1830 .cmd = hmp_info_help,
1831 .sub_table = hmp_info_cmds,
1832 .flags = "p",
1833 },
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DHB
1834
1835#if defined(CONFIG_FDT)
1836 {
1837 .name = "dumpdtb",
1838 .args_type = "filename:F",
1839 .params = "filename",
1840 .help = "dump the FDT in dtb format to 'filename'",
1841 .cmd = hmp_dumpdtb,
1842 },
1843
1844SRST
1845``dumpdtb`` *filename*
1846 Dump the FDT in dtb format to *filename*.
1847ERST
1848#endif
507cb64d
JM
1849
1850#if defined(CONFIG_XEN_EMU)
1851 {
1852 .name = "xen-event-inject",
1853 .args_type = "port:i",
1854 .params = "port",
1855 .help = "inject event channel",
1856 .cmd = hmp_xen_event_inject,
1857 },
1858
1859SRST
1860``xen-event-inject`` *port*
1861 Notify guest via event channel on port *port*.
1862ERST
1863
1864
1865 {
1866 .name = "xen-event-list",
1867 .args_type = "",
1868 .params = "",
1869 .help = "list event channel state",
1870 .cmd = hmp_xen_event_list,
1871 },
1872
1873SRST
1874``xen-event-list``
1875 List event channels in the guest
1876ERST
1877#endif