| 1 | # -*- Mode: Python -*- |
| 2 | # vim: filetype=python |
| 3 | |
| 4 | ## |
| 5 | # ************* |
| 6 | # Block devices |
| 7 | # ************* |
| 8 | ## |
| 9 | |
| 10 | { 'include': 'block-core.json' } |
| 11 | |
| 12 | ## |
| 13 | # Additional block stuff (VM related) |
| 14 | # =================================== |
| 15 | ## |
| 16 | |
| 17 | ## |
| 18 | # @BiosAtaTranslation: |
| 19 | # |
| 20 | # Policy that BIOS should use to interpret cylinder/head/sector |
| 21 | # addresses. Note that Bochs BIOS and SeaBIOS will not actually |
| 22 | # translate logical CHS to physical; instead, they will use logical |
| 23 | # block addressing. |
| 24 | # |
| 25 | # @auto: If cylinder/heads/sizes are passed, choose between none and |
| 26 | # LBA depending on the size of the disk. If they are not passed, |
| 27 | # choose none if QEMU can guess that the disk had 16 or fewer |
| 28 | # heads, large if QEMU can guess that the disk had 131072 or fewer |
| 29 | # tracks across all heads (i.e. cylinders*heads<131072), otherwise |
| 30 | # LBA. |
| 31 | # |
| 32 | # @none: The physical disk geometry is equal to the logical geometry. |
| 33 | # |
| 34 | # @lba: Assume 63 sectors per track and one of 16, 32, 64, 128 or 255 |
| 35 | # heads (if fewer than 255 are enough to cover the whole disk with |
| 36 | # 1024 cylinders/head). The number of cylinders/head is then |
| 37 | # computed based on the number of sectors and heads. |
| 38 | # |
| 39 | # @large: The number of cylinders per head is scaled down to 1024 by |
| 40 | # correspondingly scaling up the number of heads. |
| 41 | # |
| 42 | # @rechs: Same as @large, but first convert a 16-head geometry to |
| 43 | # 15-head, by proportionally scaling up the number of |
| 44 | # cylinders/head. |
| 45 | # |
| 46 | # Since: 2.0 |
| 47 | ## |
| 48 | { 'enum': 'BiosAtaTranslation', |
| 49 | 'data': ['auto', 'none', 'lba', 'large', 'rechs']} |
| 50 | |
| 51 | ## |
| 52 | # @FloppyDriveType: |
| 53 | # |
| 54 | # Type of floppy drive to be emulated by the Floppy Disk Controller. |
| 55 | # |
| 56 | # @144: 1.44MB 3.5" drive |
| 57 | # |
| 58 | # @288: 2.88MB 3.5" drive |
| 59 | # |
| 60 | # @120: 1.2MB 5.25" drive |
| 61 | # |
| 62 | # @none: No drive connected |
| 63 | # |
| 64 | # @auto: Automatically determined by inserted media at boot |
| 65 | # |
| 66 | # Since: 2.6 |
| 67 | ## |
| 68 | { 'enum': 'FloppyDriveType', |
| 69 | 'data': ['144', '288', '120', 'none', 'auto']} |
| 70 | |
| 71 | ## |
| 72 | # @PRManagerInfo: |
| 73 | # |
| 74 | # Information about a persistent reservation manager |
| 75 | # |
| 76 | # @id: the identifier of the persistent reservation manager |
| 77 | # |
| 78 | # @connected: true if the persistent reservation manager is connected |
| 79 | # to the underlying storage or helper |
| 80 | # |
| 81 | # Since: 3.0 |
| 82 | ## |
| 83 | { 'struct': 'PRManagerInfo', |
| 84 | 'data': {'id': 'str', 'connected': 'bool'} } |
| 85 | |
| 86 | ## |
| 87 | # @query-pr-managers: |
| 88 | # |
| 89 | # Return a list of information about each persistent reservation |
| 90 | # manager. |
| 91 | # |
| 92 | # Returns: a list of manager info for each persistent reservation |
| 93 | # manager |
| 94 | # |
| 95 | # Since: 3.0 |
| 96 | ## |
| 97 | { 'command': 'query-pr-managers', 'returns': ['PRManagerInfo'], |
| 98 | 'allow-preconfig': true } |
| 99 | |
| 100 | ## |
| 101 | # @eject: |
| 102 | # |
| 103 | # Ejects the medium from a removable drive. |
| 104 | # |
| 105 | # @device: Block device name |
| 106 | # |
| 107 | # @id: The name or QOM path of the guest device (since: 2.8) |
| 108 | # |
| 109 | # @force: If true, eject regardless of whether the drive is locked. |
| 110 | # If not specified, the default value is false. |
| 111 | # |
| 112 | # Features: |
| 113 | # |
| 114 | # @deprecated: Member @device is deprecated. Use @id instead. |
| 115 | # |
| 116 | # Errors: |
| 117 | # - If @device is not a valid block device, DeviceNotFound |
| 118 | # |
| 119 | # .. note:: Ejecting a device with no media results in success. |
| 120 | # |
| 121 | # Since: 0.14 |
| 122 | # |
| 123 | # .. qmp-example:: |
| 124 | # |
| 125 | # -> { "execute": "eject", "arguments": { "id": "ide1-0-1" } } |
| 126 | # <- { "return": {} } |
| 127 | ## |
| 128 | { 'command': 'eject', |
| 129 | 'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] }, |
| 130 | '*id': 'str', |
| 131 | '*force': 'bool' } } |
| 132 | |
| 133 | ## |
| 134 | # @blockdev-open-tray: |
| 135 | # |
| 136 | # Opens a block device's tray. If there is a block driver state tree |
| 137 | # inserted as a medium, it will become inaccessible to the guest (but |
| 138 | # it will remain associated to the block device, so closing the tray |
| 139 | # will make it accessible again). |
| 140 | # |
| 141 | # If the tray was already open before, this will be a no-op. |
| 142 | # |
| 143 | # Once the tray opens, a `DEVICE_TRAY_MOVED` event is emitted. There |
| 144 | # are cases in which no such event will be generated, these include: |
| 145 | # |
| 146 | # - if the guest has locked the tray, @force is false and the guest |
| 147 | # does not respond to the eject request |
| 148 | # - if the BlockBackend denoted by @device does not have a guest |
| 149 | # device attached to it |
| 150 | # - if the guest device does not have an actual tray |
| 151 | # |
| 152 | # @device: Block device name |
| 153 | # |
| 154 | # @id: The name or QOM path of the guest device (since: 2.8) |
| 155 | # |
| 156 | # @force: if false (the default), an eject request will be sent to the |
| 157 | # guest if it has locked the tray (and the tray will not be opened |
| 158 | # immediately); if true, the tray will be opened regardless of |
| 159 | # whether it is locked |
| 160 | # |
| 161 | # Features: |
| 162 | # |
| 163 | # @deprecated: Member @device is deprecated. Use @id instead. |
| 164 | # |
| 165 | # Since: 2.5 |
| 166 | # |
| 167 | # .. qmp-example:: |
| 168 | # |
| 169 | # -> { "execute": "blockdev-open-tray", |
| 170 | # "arguments": { "id": "ide0-1-0" } } |
| 171 | # |
| 172 | # <- { "timestamp": { "seconds": 1418751016, |
| 173 | # "microseconds": 716996 }, |
| 174 | # "event": "DEVICE_TRAY_MOVED", |
| 175 | # "data": { "device": "ide1-cd0", |
| 176 | # "id": "ide0-1-0", |
| 177 | # "tray-open": true } } |
| 178 | # |
| 179 | # <- { "return": {} } |
| 180 | ## |
| 181 | { 'command': 'blockdev-open-tray', |
| 182 | 'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] }, |
| 183 | '*id': 'str', |
| 184 | '*force': 'bool' } } |
| 185 | |
| 186 | ## |
| 187 | # @blockdev-close-tray: |
| 188 | # |
| 189 | # Closes a block device's tray. If there is a block driver state tree |
| 190 | # associated with the block device (which is currently ejected), that |
| 191 | # tree will be loaded as the medium. |
| 192 | # |
| 193 | # If the tray was already closed before, this will be a no-op. |
| 194 | # |
| 195 | # @device: Block device name |
| 196 | # |
| 197 | # @id: The name or QOM path of the guest device (since: 2.8) |
| 198 | # |
| 199 | # Features: |
| 200 | # |
| 201 | # @deprecated: Member @device is deprecated. Use @id instead. |
| 202 | # |
| 203 | # Since: 2.5 |
| 204 | # |
| 205 | # .. qmp-example:: |
| 206 | # |
| 207 | # -> { "execute": "blockdev-close-tray", |
| 208 | # "arguments": { "id": "ide0-1-0" } } |
| 209 | # |
| 210 | # <- { "timestamp": { "seconds": 1418751345, |
| 211 | # "microseconds": 272147 }, |
| 212 | # "event": "DEVICE_TRAY_MOVED", |
| 213 | # "data": { "device": "ide1-cd0", |
| 214 | # "id": "ide0-1-0", |
| 215 | # "tray-open": false } } |
| 216 | # |
| 217 | # <- { "return": {} } |
| 218 | ## |
| 219 | { 'command': 'blockdev-close-tray', |
| 220 | 'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] }, |
| 221 | '*id': 'str' } } |
| 222 | |
| 223 | ## |
| 224 | # @blockdev-remove-medium: |
| 225 | # |
| 226 | # Removes a medium (a block driver state tree) from a block device. |
| 227 | # That block device's tray must currently be open (unless there is no |
| 228 | # attached guest device). |
| 229 | # |
| 230 | # If the tray is open and there is no medium inserted, this will be a |
| 231 | # no-op. |
| 232 | # |
| 233 | # @id: The name or QOM path of the guest device |
| 234 | # |
| 235 | # Since: 2.12 |
| 236 | # |
| 237 | # .. qmp-example:: |
| 238 | # |
| 239 | # -> { "execute": "blockdev-remove-medium", |
| 240 | # "arguments": { "id": "ide0-1-0" } } |
| 241 | # |
| 242 | # <- { "error": { "class": "GenericError", |
| 243 | # "desc": "Tray of device 'ide0-1-0' is not open" } } |
| 244 | # |
| 245 | # -> { "execute": "blockdev-open-tray", |
| 246 | # "arguments": { "id": "ide0-1-0" } } |
| 247 | # |
| 248 | # <- { "timestamp": { "seconds": 1418751627, |
| 249 | # "microseconds": 549958 }, |
| 250 | # "event": "DEVICE_TRAY_MOVED", |
| 251 | # "data": { "device": "ide1-cd0", |
| 252 | # "id": "ide0-1-0", |
| 253 | # "tray-open": true } } |
| 254 | # |
| 255 | # <- { "return": {} } |
| 256 | # |
| 257 | # -> { "execute": "blockdev-remove-medium", |
| 258 | # "arguments": { "id": "ide0-1-0" } } |
| 259 | # |
| 260 | # <- { "return": {} } |
| 261 | ## |
| 262 | { 'command': 'blockdev-remove-medium', |
| 263 | 'data': { 'id': 'str' } } |
| 264 | |
| 265 | ## |
| 266 | # @blockdev-insert-medium: |
| 267 | # |
| 268 | # Inserts a medium (a block driver state tree) into a block device. |
| 269 | # That block device's tray must currently be open (unless there is no |
| 270 | # attached guest device) and there must be no medium inserted already. |
| 271 | # |
| 272 | # @id: The name or QOM path of the guest device |
| 273 | # |
| 274 | # @node-name: name of a node in the block driver state graph |
| 275 | # |
| 276 | # Since: 2.12 |
| 277 | # |
| 278 | # .. qmp-example:: |
| 279 | # |
| 280 | # -> { "execute": "blockdev-add", |
| 281 | # "arguments": { |
| 282 | # "node-name": "node0", |
| 283 | # "driver": "raw", |
| 284 | # "file": { "driver": "file", |
| 285 | # "filename": "fedora.iso" } } } |
| 286 | # <- { "return": {} } |
| 287 | # |
| 288 | # -> { "execute": "blockdev-insert-medium", |
| 289 | # "arguments": { "id": "ide0-1-0", |
| 290 | # "node-name": "node0" } } |
| 291 | # |
| 292 | # <- { "return": {} } |
| 293 | ## |
| 294 | { 'command': 'blockdev-insert-medium', |
| 295 | 'data': { 'id': 'str', |
| 296 | 'node-name': 'str'} } |
| 297 | |
| 298 | ## |
| 299 | # @BlockdevChangeReadOnlyMode: |
| 300 | # |
| 301 | # Specifies the new read-only mode of a block device subject to the |
| 302 | # `blockdev-change-medium` command. |
| 303 | # |
| 304 | # @retain: Retains the current read-only mode |
| 305 | # |
| 306 | # @read-only: Makes the device read-only |
| 307 | # |
| 308 | # @read-write: Makes the device writable |
| 309 | # |
| 310 | # Since: 2.3 |
| 311 | ## |
| 312 | { 'enum': 'BlockdevChangeReadOnlyMode', |
| 313 | 'data': ['retain', 'read-only', 'read-write'] } |
| 314 | |
| 315 | ## |
| 316 | # @blockdev-change-medium: |
| 317 | # |
| 318 | # Changes the medium inserted into a block device by ejecting the |
| 319 | # current medium and loading a new image file which is inserted as the |
| 320 | # new medium (this command combines `blockdev-open-tray`, |
| 321 | # `blockdev-remove-medium`, `blockdev-insert-medium` and |
| 322 | # `blockdev-close-tray`). |
| 323 | # |
| 324 | # @device: Block device name |
| 325 | # |
| 326 | # @id: The name or QOM path of the guest device (since: 2.8) |
| 327 | # |
| 328 | # @filename: filename of the new image to be loaded |
| 329 | # |
| 330 | # @format: format to open the new image with (defaults to the probed |
| 331 | # format) |
| 332 | # |
| 333 | # @read-only-mode: change the read-only mode of the device; defaults |
| 334 | # to 'retain' |
| 335 | # |
| 336 | # @force: if false (the default), an eject request through |
| 337 | # `blockdev-open-tray` will be sent to the guest if it has locked |
| 338 | # the tray (and the tray will not be opened immediately); if true, |
| 339 | # the tray will be opened regardless of whether it is locked. |
| 340 | # (since 7.1) |
| 341 | # |
| 342 | # Features: |
| 343 | # |
| 344 | # @deprecated: Member @device is deprecated. Use @id instead. |
| 345 | # |
| 346 | # Since: 2.5 |
| 347 | # |
| 348 | # .. qmp-example:: |
| 349 | # :title: Change a removable medium |
| 350 | # |
| 351 | # -> { "execute": "blockdev-change-medium", |
| 352 | # "arguments": { "id": "ide0-1-0", |
| 353 | # "filename": "/srv/images/Fedora-12-x86_64-DVD.iso", |
| 354 | # "format": "raw" } } |
| 355 | # <- { "return": {} } |
| 356 | # |
| 357 | # .. qmp-example:: |
| 358 | # :title: Load a read-only medium into a writable drive |
| 359 | # |
| 360 | # -> { "execute": "blockdev-change-medium", |
| 361 | # "arguments": { "id": "floppyA", |
| 362 | # "filename": "/srv/images/ro.img", |
| 363 | # "format": "raw", |
| 364 | # "read-only-mode": "retain" } } |
| 365 | # |
| 366 | # <- { "error": |
| 367 | # { "class": "GenericError", |
| 368 | # "desc": "Could not open '/srv/images/ro.img': Permission denied" } } |
| 369 | # |
| 370 | # -> { "execute": "blockdev-change-medium", |
| 371 | # "arguments": { "id": "floppyA", |
| 372 | # "filename": "/srv/images/ro.img", |
| 373 | # "format": "raw", |
| 374 | # "read-only-mode": "read-only" } } |
| 375 | # |
| 376 | # <- { "return": {} } |
| 377 | ## |
| 378 | { 'command': 'blockdev-change-medium', |
| 379 | 'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] }, |
| 380 | '*id': 'str', |
| 381 | 'filename': 'str', |
| 382 | '*format': 'str', |
| 383 | '*force': 'bool', |
| 384 | '*read-only-mode': 'BlockdevChangeReadOnlyMode' } } |
| 385 | |
| 386 | ## |
| 387 | # @DEVICE_TRAY_MOVED: |
| 388 | # |
| 389 | # Emitted whenever the tray of a removable device is moved by the |
| 390 | # guest or by HMP/QMP commands |
| 391 | # |
| 392 | # @device: Block device name. This is always present for |
| 393 | # compatibility reasons, but it can be empty ("") if the image |
| 394 | # does not have a device name associated. |
| 395 | # |
| 396 | # @id: The name or QOM path of the guest device (since 2.8) |
| 397 | # |
| 398 | # @tray-open: true if the tray has been opened or false if it has been |
| 399 | # closed |
| 400 | # |
| 401 | # Since: 1.1 |
| 402 | # |
| 403 | # .. qmp-example:: |
| 404 | # |
| 405 | # <- { "event": "DEVICE_TRAY_MOVED", |
| 406 | # "data": { "device": "ide1-cd0", |
| 407 | # "id": "/machine/unattached/device[22]", |
| 408 | # "tray-open": true |
| 409 | # }, |
| 410 | # "timestamp": { "seconds": 1265044230, "microseconds": 450486 } } |
| 411 | ## |
| 412 | { 'event': 'DEVICE_TRAY_MOVED', |
| 413 | 'data': { 'device': 'str', 'id': 'str', 'tray-open': 'bool' } } |
| 414 | |
| 415 | ## |
| 416 | # @PR_MANAGER_STATUS_CHANGED: |
| 417 | # |
| 418 | # Emitted whenever the connected status of a persistent reservation |
| 419 | # manager changes. |
| 420 | # |
| 421 | # @id: The id of the PR manager object |
| 422 | # |
| 423 | # @connected: true if the PR manager is connected to a backend |
| 424 | # |
| 425 | # Since: 3.0 |
| 426 | # |
| 427 | # .. qmp-example:: |
| 428 | # |
| 429 | # <- { "event": "PR_MANAGER_STATUS_CHANGED", |
| 430 | # "data": { "id": "pr-helper0", |
| 431 | # "connected": true |
| 432 | # }, |
| 433 | # "timestamp": { "seconds": 1519840375, "microseconds": 450486 } } |
| 434 | ## |
| 435 | { 'event': 'PR_MANAGER_STATUS_CHANGED', |
| 436 | 'data': { 'id': 'str', 'connected': 'bool' } } |
| 437 | |
| 438 | ## |
| 439 | # @block_set_io_throttle: |
| 440 | # |
| 441 | # Change I/O throttle limits for a block drive. |
| 442 | # |
| 443 | # Since QEMU 2.4, each device with I/O limits is member of a throttle |
| 444 | # group. |
| 445 | # |
| 446 | # If two or more devices are members of the same group, the limits |
| 447 | # will apply to the combined I/O of the whole group in a round-robin |
| 448 | # fashion. Therefore, setting new I/O limits to a device will affect |
| 449 | # the whole group. |
| 450 | # |
| 451 | # The name of the group can be specified using the 'group' parameter. |
| 452 | # If the parameter is unset, it is assumed to be the current group of |
| 453 | # that device. If it's not in any group yet, the name of the device |
| 454 | # will be used as the name for its group. |
| 455 | # |
| 456 | # The 'group' parameter can also be used to move a device to a |
| 457 | # different group. In this case the limits specified in the |
| 458 | # parameters will be applied to the new group only. |
| 459 | # |
| 460 | # I/O limits can be disabled by setting all of them to 0. In this |
| 461 | # case the device will be removed from its group and the rest of its |
| 462 | # members will not be affected. The 'group' parameter is ignored. |
| 463 | # |
| 464 | # Errors: |
| 465 | # - If @device is not a valid block device, DeviceNotFound |
| 466 | # |
| 467 | # Since: 1.1 |
| 468 | # |
| 469 | # .. qmp-example:: |
| 470 | # |
| 471 | # -> { "execute": "block_set_io_throttle", |
| 472 | # "arguments": { "id": "virtio-blk-pci0/virtio-backend", |
| 473 | # "bps": 0, |
| 474 | # "bps_rd": 0, |
| 475 | # "bps_wr": 0, |
| 476 | # "iops": 512, |
| 477 | # "iops_rd": 0, |
| 478 | # "iops_wr": 0, |
| 479 | # "bps_max": 0, |
| 480 | # "bps_rd_max": 0, |
| 481 | # "bps_wr_max": 0, |
| 482 | # "iops_max": 0, |
| 483 | # "iops_rd_max": 0, |
| 484 | # "iops_wr_max": 0, |
| 485 | # "bps_max_length": 0, |
| 486 | # "iops_size": 0 } } |
| 487 | # <- { "return": {} } |
| 488 | # |
| 489 | # .. qmp-example:: |
| 490 | # |
| 491 | # -> { "execute": "block_set_io_throttle", |
| 492 | # "arguments": { "id": "ide0-1-0", |
| 493 | # "bps": 1000000, |
| 494 | # "bps_rd": 0, |
| 495 | # "bps_wr": 0, |
| 496 | # "iops": 0, |
| 497 | # "iops_rd": 0, |
| 498 | # "iops_wr": 0, |
| 499 | # "bps_max": 8000000, |
| 500 | # "bps_rd_max": 0, |
| 501 | # "bps_wr_max": 0, |
| 502 | # "iops_max": 0, |
| 503 | # "iops_rd_max": 0, |
| 504 | # "iops_wr_max": 0, |
| 505 | # "bps_max_length": 60, |
| 506 | # "iops_size": 0 } } |
| 507 | # <- { "return": {} } |
| 508 | ## |
| 509 | { 'command': 'block_set_io_throttle', 'boxed': true, |
| 510 | 'data': 'BlockIOThrottle', |
| 511 | 'allow-preconfig': true } |
| 512 | |
| 513 | ## |
| 514 | # @block-latency-histogram-set: |
| 515 | # |
| 516 | # Manage read, write and flush latency histograms for the device. |
| 517 | # |
| 518 | # If only @id parameter is specified, remove all present latency |
| 519 | # histograms for the device. Otherwise, add/reset some of (or all) |
| 520 | # latency histograms. |
| 521 | # |
| 522 | # @id: The name or QOM path of the guest device. |
| 523 | # |
| 524 | # @boundaries: list of interval boundary values (see description in |
| 525 | # `BlockLatencyHistogramInfo` definition). If specified, all |
| 526 | # latency histograms are removed, and empty ones created for all |
| 527 | # io types with intervals corresponding to @boundaries (except for |
| 528 | # io types, for which specific boundaries are set through the |
| 529 | # following parameters). |
| 530 | # |
| 531 | # @boundaries-read: list of interval boundary values for read latency |
| 532 | # histogram. If specified, old read latency histogram is removed, |
| 533 | # and empty one created with intervals corresponding to |
| 534 | # @boundaries-read. The parameter has higher priority then |
| 535 | # @boundaries. |
| 536 | # |
| 537 | # @boundaries-write: list of interval boundary values for write |
| 538 | # latency histogram. |
| 539 | # |
| 540 | # @boundaries-zap: list of interval boundary values for zone append |
| 541 | # write latency histogram. |
| 542 | # |
| 543 | # @boundaries-flush: list of interval boundary values for flush |
| 544 | # latency histogram. |
| 545 | # |
| 546 | # Errors: |
| 547 | # - if device is not found or any boundary arrays are invalid. |
| 548 | # |
| 549 | # Since: 4.0 |
| 550 | # |
| 551 | # .. qmp-example:: |
| 552 | # :annotated: |
| 553 | # |
| 554 | # Set new histograms for all io types with intervals |
| 555 | # [0, 10), [10, 50), [50, 100), [100, +inf):: |
| 556 | # |
| 557 | # -> { "execute": "block-latency-histogram-set", |
| 558 | # "arguments": { "id": "drive0", |
| 559 | # "boundaries": [10, 50, 100] } } |
| 560 | # <- { "return": {} } |
| 561 | # |
| 562 | # .. qmp-example:: |
| 563 | # :annotated: |
| 564 | # |
| 565 | # Set new histogram only for write, other histograms will remain |
| 566 | # not changed (or not created):: |
| 567 | # |
| 568 | # -> { "execute": "block-latency-histogram-set", |
| 569 | # "arguments": { "id": "drive0", |
| 570 | # "boundaries-write": [10, 50, 100] } } |
| 571 | # <- { "return": {} } |
| 572 | # |
| 573 | # .. qmp-example:: |
| 574 | # :annotated: |
| 575 | # |
| 576 | # Set new histograms with the following intervals: |
| 577 | # |
| 578 | # - read, flush: [0, 10), [10, 50), [50, 100), [100, +inf) |
| 579 | # - write: [0, 1000), [1000, 5000), [5000, +inf) |
| 580 | # |
| 581 | # :: |
| 582 | # |
| 583 | # -> { "execute": "block-latency-histogram-set", |
| 584 | # "arguments": { "id": "drive0", |
| 585 | # "boundaries": [10, 50, 100], |
| 586 | # "boundaries-write": [1000, 5000] } } |
| 587 | # <- { "return": {} } |
| 588 | # |
| 589 | # .. qmp-example:: |
| 590 | # :annotated: |
| 591 | # |
| 592 | # Remove all latency histograms:: |
| 593 | # |
| 594 | # -> { "execute": "block-latency-histogram-set", |
| 595 | # "arguments": { "id": "drive0" } } |
| 596 | # <- { "return": {} } |
| 597 | ## |
| 598 | { 'command': 'block-latency-histogram-set', |
| 599 | 'data': {'id': 'str', |
| 600 | '*boundaries': ['uint64'], |
| 601 | '*boundaries-read': ['uint64'], |
| 602 | '*boundaries-write': ['uint64'], |
| 603 | '*boundaries-zap': ['uint64'], |
| 604 | '*boundaries-flush': ['uint64'] }, |
| 605 | 'allow-preconfig': true } |
| 606 | |
| 607 | ## |
| 608 | # @x-qemu-io: |
| 609 | # |
| 610 | # Run a qemu-io command on a block device. Take either a block |
| 611 | # backend name or a qdev ID to identify the device. |
| 612 | # |
| 613 | # @device: the block backend name, node-name to run the |
| 614 | # command on. |
| 615 | # |
| 616 | # @qdev: the qdev ID of the block device to run the |
| 617 | # command on. |
| 618 | # |
| 619 | # @command: the qemu-io command string to execute. |
| 620 | # |
| 621 | # Features: |
| 622 | # |
| 623 | # @unstable: This command is for testing only. |
| 624 | # |
| 625 | # Since: 11.2 |
| 626 | # |
| 627 | # .. qmp-example:: |
| 628 | # |
| 629 | # -> { "execute": "x-qemu-io", |
| 630 | # "arguments": { "device": "virtio0", |
| 631 | # "command": "read 0 512" } } |
| 632 | # <- { "return": {} } |
| 633 | ## |
| 634 | { 'command': 'x-qemu-io', |
| 635 | 'data': { '*device': 'str', |
| 636 | '*qdev': 'str', |
| 637 | 'command': 'str' }, |
| 638 | 'features': [ 'unstable' ], |
| 639 | 'allow-preconfig': true } |