qapi/machine.json

   1 # -*- Mode: Python -*-
   2 #
   3 # This work is licensed under the terms of the GNU GPL, version 2 or later.
   4 # See the COPYING file in the top-level directory.
   5
   6 ##
   7 # = Machines
   8 ##
   9
  10 ##
  11 # @SysEmuTarget:
  12 #
  13 # The comprehensive enumeration of QEMU system emulation ("softmmu")
  14 # targets. Run "./configure --help" in the project root directory, and
  15 # look for the *-softmmu targets near the "--target-list" option. The
  16 # individual target constants are not documented here, for the time
  17 # being.
  18 #
  19 # Notes: The resulting QMP strings can be appended to the "qemu-system-"
  20 #        prefix to produce the corresponding QEMU executable name. This
  21 #        is true even for "qemu-system-x86_64".
  22 #
  23 # ppcemb: dropped in 3.1
  24 #
  25 # Since: 3.0
  26 ##
  27 { 'enum' : 'SysEmuTarget',
  28   'data' : [ 'aarch64', 'alpha', 'arm', 'cris', 'hppa', 'i386', 'lm32',
  29              'm68k', 'microblaze', 'microblazeel', 'mips', 'mips64',
  30              'mips64el', 'mipsel', 'moxie', 'nios2', 'or1k', 'ppc',
  31              'ppc64', 'riscv32', 'riscv64', 's390x', 'sh4',
  32              'sh4eb', 'sparc', 'sparc64', 'tricore', 'unicore32',
  33              'x86_64', 'xtensa', 'xtensaeb' ] }
  34
  35 ##
  36 # @CpuInfoArch:
  37 #
  38 # An enumeration of cpu types that enable additional information during
  39 # @query-cpus and @query-cpus-fast.
  40 #
  41 # @s390: since 2.12
  42 #
  43 # @riscv: since 2.12
  44 #
  45 # Since: 2.6
  46 ##
  47 { 'enum': 'CpuInfoArch',
  48   'data': ['x86', 'sparc', 'ppc', 'mips', 'tricore', 's390', 'riscv', 'other' ] }
  49
  50 ##
  51 # @CpuInfo:
  52 #
  53 # Information about a virtual CPU
  54 #
  55 # @CPU: the index of the virtual CPU
  56 #
  57 # @current: this only exists for backwards compatibility and should be ignored
  58 #
  59 # @halted: true if the virtual CPU is in the halt state.  Halt usually refers
  60 #          to a processor specific low power mode.
  61 #
  62 # @qom_path: path to the CPU object in the QOM tree (since 2.4)
  63 #
  64 # @thread_id: ID of the underlying host thread
  65 #
  66 # @props: properties describing to which node/socket/core/thread
  67 #         virtual CPU belongs to, provided if supported by board (since 2.10)
  68 #
  69 # @arch: architecture of the cpu, which determines which additional fields
  70 #        will be listed (since 2.6)
  71 #
  72 # Since: 0.14.0
  73 #
  74 # Notes: @halted is a transient state that changes frequently.  By the time the
  75 #        data is sent to the client, the guest may no longer be halted.
  76 ##
  77 { 'union': 'CpuInfo',
  78   'base': {'CPU': 'int', 'current': 'bool', 'halted': 'bool',
  79            'qom_path': 'str', 'thread_id': 'int',
  80            '*props': 'CpuInstanceProperties', 'arch': 'CpuInfoArch' },
  81   'discriminator': 'arch',
  82   'data': { 'x86': 'CpuInfoX86',
  83             'sparc': 'CpuInfoSPARC',
  84             'ppc': 'CpuInfoPPC',
  85             'mips': 'CpuInfoMIPS',
  86             'tricore': 'CpuInfoTricore',
  87             's390': 'CpuInfoS390',
  88             'riscv': 'CpuInfoRISCV' } }
  89
  90 ##
  91 # @CpuInfoX86:
  92 #
  93 # Additional information about a virtual i386 or x86_64 CPU
  94 #
  95 # @pc: the 64-bit instruction pointer
  96 #
  97 # Since: 2.6
  98 ##
  99 { 'struct': 'CpuInfoX86', 'data': { 'pc': 'int' } }
 100
 101 ##
 102 # @CpuInfoSPARC:
 103 #
 104 # Additional information about a virtual SPARC CPU
 105 #
 106 # @pc: the PC component of the instruction pointer
 107 #
 108 # @npc: the NPC component of the instruction pointer
 109 #
 110 # Since: 2.6
 111 ##
 112 { 'struct': 'CpuInfoSPARC', 'data': { 'pc': 'int', 'npc': 'int' } }
 113
 114 ##
 115 # @CpuInfoPPC:
 116 #
 117 # Additional information about a virtual PPC CPU
 118 #
 119 # @nip: the instruction pointer
 120 #
 121 # Since: 2.6
 122 ##
 123 { 'struct': 'CpuInfoPPC', 'data': { 'nip': 'int' } }
 124
 125 ##
 126 # @CpuInfoMIPS:
 127 #
 128 # Additional information about a virtual MIPS CPU
 129 #
 130 # @PC: the instruction pointer
 131 #
 132 # Since: 2.6
 133 ##
 134 { 'struct': 'CpuInfoMIPS', 'data': { 'PC': 'int' } }
 135
 136 ##
 137 # @CpuInfoTricore:
 138 #
 139 # Additional information about a virtual Tricore CPU
 140 #
 141 # @PC: the instruction pointer
 142 #
 143 # Since: 2.6
 144 ##
 145 { 'struct': 'CpuInfoTricore', 'data': { 'PC': 'int' } }
 146
 147 ##
 148 # @CpuInfoRISCV:
 149 #
 150 # Additional information about a virtual RISCV CPU
 151 #
 152 # @pc: the instruction pointer
 153 #
 154 # Since 2.12
 155 ##
 156 { 'struct': 'CpuInfoRISCV', 'data': { 'pc': 'int' } }
 157
 158 ##
 159 # @CpuS390State:
 160 #
 161 # An enumeration of cpu states that can be assumed by a virtual
 162 # S390 CPU
 163 #
 164 # Since: 2.12
 165 ##
 166 { 'enum': 'CpuS390State',
 167   'prefix': 'S390_CPU_STATE',
 168   'data': [ 'uninitialized', 'stopped', 'check-stop', 'operating', 'load' ] }
 169
 170 ##
 171 # @CpuInfoS390:
 172 #
 173 # Additional information about a virtual S390 CPU
 174 #
 175 # @cpu-state: the virtual CPU's state
 176 #
 177 # Since: 2.12
 178 ##
 179 { 'struct': 'CpuInfoS390', 'data': { 'cpu-state': 'CpuS390State' } }
 180
 181 ##
 182 # @query-cpus:
 183 #
 184 # Returns a list of information about each virtual CPU.
 185 #
 186 # This command causes vCPU threads to exit to userspace, which causes
 187 # a small interruption to guest CPU execution. This will have a negative
 188 # impact on realtime guests and other latency sensitive guest workloads.
 189 # It is recommended to use @query-cpus-fast instead of this command to
 190 # avoid the vCPU interruption.
 191 #
 192 # Returns: a list of @CpuInfo for each virtual CPU
 193 #
 194 # Since: 0.14.0
 195 #
 196 # Example:
 197 #
 198 # -> { "execute": "query-cpus" }
 199 # <- { "return": [
 200 #          {
 201 #             "CPU":0,
 202 #             "current":true,
 203 #             "halted":false,
 204 #             "qom_path":"/machine/unattached/device[0]",
 205 #             "arch":"x86",
 206 #             "pc":3227107138,
 207 #             "thread_id":3134
 208 #          },
 209 #          {
 210 #             "CPU":1,
 211 #             "current":false,
 212 #             "halted":true,
 213 #             "qom_path":"/machine/unattached/device[2]",
 214 #             "arch":"x86",
 215 #             "pc":7108165,
 216 #             "thread_id":3135
 217 #          }
 218 #       ]
 219 #    }
 220 #
 221 # Notes: This interface is deprecated (since 2.12.0), and it is strongly
 222 #        recommended that you avoid using it. Use @query-cpus-fast to
 223 #        obtain information about virtual CPUs.
 224 #
 225 ##
 226 { 'command': 'query-cpus', 'returns': ['CpuInfo'] }
 227
 228 ##
 229 # @CpuInfoFast:
 230 #
 231 # Information about a virtual CPU
 232 #
 233 # @cpu-index: index of the virtual CPU
 234 #
 235 # @qom-path: path to the CPU object in the QOM tree
 236 #
 237 # @thread-id: ID of the underlying host thread
 238 #
 239 # @props: properties describing to which node/socket/core/thread
 240 #         virtual CPU belongs to, provided if supported by board
 241 #
 242 # @arch: base architecture of the cpu; deprecated since 3.0.0 in favor
 243 #        of @target
 244 #
 245 # @target: the QEMU system emulation target, which determines which
 246 #          additional fields will be listed (since 3.0)
 247 #
 248 # Since: 2.12
 249 #
 250 ##
 251 { 'union'         : 'CpuInfoFast',
 252   'base'          : { 'cpu-index'    : 'int',
 253                       'qom-path'     : 'str',
 254                       'thread-id'    : 'int',
 255                       '*props'       : 'CpuInstanceProperties',
 256                       'arch'         : 'CpuInfoArch',
 257                       'target'       : 'SysEmuTarget' },
 258   'discriminator' : 'target',
 259   'data'          : { 's390x'        : 'CpuInfoS390' } }
 260
 261 ##
 262 # @query-cpus-fast:
 263 #
 264 # Returns information about all virtual CPUs. This command does not
 265 # incur a performance penalty and should be used in production
 266 # instead of query-cpus.
 267 #
 268 # Returns: list of @CpuInfoFast
 269 #
 270 # Since: 2.12
 271 #
 272 # Example:
 273 #
 274 # -> { "execute": "query-cpus-fast" }
 275 # <- { "return": [
 276 #         {
 277 #             "thread-id": 25627,
 278 #             "props": {
 279 #                 "core-id": 0,
 280 #                 "thread-id": 0,
 281 #                 "socket-id": 0
 282 #             },
 283 #             "qom-path": "/machine/unattached/device[0]",
 284 #             "arch":"x86",
 285 #             "target":"x86_64",
 286 #             "cpu-index": 0
 287 #         },
 288 #         {
 289 #             "thread-id": 25628,
 290 #             "props": {
 291 #                 "core-id": 0,
 292 #                 "thread-id": 0,
 293 #                 "socket-id": 1
 294 #             },
 295 #             "qom-path": "/machine/unattached/device[2]",
 296 #             "arch":"x86",
 297 #             "target":"x86_64",
 298 #             "cpu-index": 1
 299 #         }
 300 #     ]
 301 # }
 302 ##
 303 { 'command': 'query-cpus-fast', 'returns': [ 'CpuInfoFast' ] }
 304
 305 ##
 306 # @cpu-add:
 307 #
 308 # Adds CPU with specified ID.
 309 #
 310 # @id: ID of CPU to be created, valid values [0..max_cpus)
 311 #
 312 # Returns: Nothing on success
 313 #
 314 # Since: 1.5
 315 #
 316 # Note: This command is deprecated.  The `device_add` command should be
 317 #       used instead.  See the `query-hotpluggable-cpus` command for
 318 #       details.
 319 #
 320 # Example:
 321 #
 322 # -> { "execute": "cpu-add", "arguments": { "id": 2 } }
 323 # <- { "return": {} }
 324 #
 325 ##
 326 { 'command': 'cpu-add', 'data': {'id': 'int'} }
 327
 328 ##
 329 # @MachineInfo:
 330 #
 331 # Information describing a machine.
 332 #
 333 # @name: the name of the machine
 334 #
 335 # @alias: an alias for the machine name
 336 #
 337 # @is-default: whether the machine is default
 338 #
 339 # @cpu-max: maximum number of CPUs supported by the machine type
 340 #           (since 1.5.0)
 341 #
 342 # @hotpluggable-cpus: cpu hotplug via -device is supported (since 2.7.0)
 343 #
 344 # @numa-mem-supported: true if '-numa node,mem' option is supported by
 345 #                      the machine type and false otherwise (since 4.1)
 346 #
 347 # @deprecated: if true, the machine type is deprecated and may be removed
 348 #              in future versions of QEMU according to the QEMU deprecation
 349 #              policy (since 4.1.0)
 350 #
 351 # @default-cpu-type: default CPU model typename if none is requested via
 352 #                    the -cpu argument. (since 4.2)
 353 #
 354 # Since: 1.2.0
 355 ##
 356 { 'struct': 'MachineInfo',
 357   'data': { 'name': 'str', '*alias': 'str',
 358             '*is-default': 'bool', 'cpu-max': 'int',
 359             'hotpluggable-cpus': 'bool',  'numa-mem-supported': 'bool',
 360             'deprecated': 'bool', '*default-cpu-type': 'str' } }
 361
 362 ##
 363 # @query-machines:
 364 #
 365 # Return a list of supported machines
 366 #
 367 # Returns: a list of MachineInfo
 368 #
 369 # Since: 1.2.0
 370 ##
 371 { 'command': 'query-machines', 'returns': ['MachineInfo'] }
 372
 373 ##
 374 # @CurrentMachineParams:
 375 #
 376 # Information describing the running machine parameters.
 377 #
 378 # @wakeup-suspend-support: true if the machine supports wake up from
 379 #                          suspend
 380 #
 381 # Since: 4.0
 382 ##
 383 { 'struct': 'CurrentMachineParams',
 384   'data': { 'wakeup-suspend-support': 'bool'} }
 385
 386 ##
 387 # @query-current-machine:
 388 #
 389 # Return information on the current virtual machine.
 390 #
 391 # Returns: CurrentMachineParams
 392 #
 393 # Since: 4.0
 394 ##
 395 { 'command': 'query-current-machine', 'returns': 'CurrentMachineParams' }
 396
 397 ##
 398 # @TargetInfo:
 399 #
 400 # Information describing the QEMU target.
 401 #
 402 # @arch: the target architecture
 403 #
 404 # Since: 1.2.0
 405 ##
 406 { 'struct': 'TargetInfo',
 407   'data': { 'arch': 'SysEmuTarget' } }
 408
 409 ##
 410 # @query-target:
 411 #
 412 # Return information about the target for this QEMU
 413 #
 414 # Returns: TargetInfo
 415 #
 416 # Since: 1.2.0
 417 ##
 418 { 'command': 'query-target', 'returns': 'TargetInfo' }
 419
 420 ##
 421 # @NumaOptionsType:
 422 #
 423 # @node: NUMA nodes configuration
 424 #
 425 # @dist: NUMA distance configuration (since 2.10)
 426 #
 427 # @cpu: property based CPU(s) to node mapping (Since: 2.10)
 428 #
 429 # @hmat-lb: memory latency and bandwidth information (Since: 5.0)
 430 #
 431 # Since: 2.1
 432 ##
 433 { 'enum': 'NumaOptionsType',
 434   'data': [ 'node', 'dist', 'cpu', 'hmat-lb' ] }
 435
 436 ##
 437 # @NumaOptions:
 438 #
 439 # A discriminated record of NUMA options. (for OptsVisitor)
 440 #
 441 # Since: 2.1
 442 ##
 443 { 'union': 'NumaOptions',
 444   'base': { 'type': 'NumaOptionsType' },
 445   'discriminator': 'type',
 446   'data': {
 447     'node': 'NumaNodeOptions',
 448     'dist': 'NumaDistOptions',
 449     'cpu': 'NumaCpuOptions',
 450     'hmat-lb': 'NumaHmatLBOptions' }}
 451
 452 ##
 453 # @NumaNodeOptions:
 454 #
 455 # Create a guest NUMA node. (for OptsVisitor)
 456 #
 457 # @nodeid: NUMA node ID (increase by 1 from 0 if omitted)
 458 #
 459 # @cpus: VCPUs belonging to this node (assign VCPUS round-robin
 460 #         if omitted)
 461 #
 462 # @mem: memory size of this node; mutually exclusive with @memdev.
 463 #       Equally divide total memory among nodes if both @mem and @memdev are
 464 #       omitted.
 465 #
 466 # @memdev: memory backend object.  If specified for one node,
 467 #          it must be specified for all nodes.
 468 #
 469 # @initiator: defined in ACPI 6.3 Chapter 5.2.27.3 Table 5-145,
 470 #             points to the nodeid which has the memory controller
 471 #             responsible for this NUMA node. This field provides
 472 #             additional information as to the initiator node that
 473 #             is closest (as in directly attached) to this node, and
 474 #             therefore has the best performance (since 5.0)
 475 #
 476 # Since: 2.1
 477 ##
 478 { 'struct': 'NumaNodeOptions',
 479   'data': {
 480    '*nodeid': 'uint16',
 481    '*cpus':   ['uint16'],
 482    '*mem':    'size',
 483    '*memdev': 'str',
 484    '*initiator': 'uint16' }}
 485
 486 ##
 487 # @NumaDistOptions:
 488 #
 489 # Set the distance between 2 NUMA nodes.
 490 #
 491 # @src: source NUMA node.
 492 #
 493 # @dst: destination NUMA node.
 494 #
 495 # @val: NUMA distance from source node to destination node.
 496 #       When a node is unreachable from another node, set the distance
 497 #       between them to 255.
 498 #
 499 # Since: 2.10
 500 ##
 501 { 'struct': 'NumaDistOptions',
 502   'data': {
 503    'src': 'uint16',
 504    'dst': 'uint16',
 505    'val': 'uint8' }}
 506
 507 ##
 508 # @X86CPURegister32:
 509 #
 510 # A X86 32-bit register
 511 #
 512 # Since: 1.5
 513 ##
 514 { 'enum': 'X86CPURegister32',
 515   'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ] }
 516
 517 ##
 518 # @X86CPUFeatureWordInfo:
 519 #
 520 # Information about a X86 CPU feature word
 521 #
 522 # @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word
 523 #
 524 # @cpuid-input-ecx: Input ECX value for CPUID instruction for that
 525 #                   feature word
 526 #
 527 # @cpuid-register: Output register containing the feature bits
 528 #
 529 # @features: value of output register, containing the feature bits
 530 #
 531 # Since: 1.5
 532 ##
 533 { 'struct': 'X86CPUFeatureWordInfo',
 534   'data': { 'cpuid-input-eax': 'int',
 535             '*cpuid-input-ecx': 'int',
 536             'cpuid-register': 'X86CPURegister32',
 537             'features': 'int' } }
 538
 539 ##
 540 # @DummyForceArrays:
 541 #
 542 # Not used by QMP; hack to let us use X86CPUFeatureWordInfoList internally
 543 #
 544 # Since: 2.5
 545 ##
 546 { 'struct': 'DummyForceArrays',
 547   'data': { 'unused': ['X86CPUFeatureWordInfo'] } }
 548
 549 ##
 550 # @NumaCpuOptions:
 551 #
 552 # Option "-numa cpu" overrides default cpu to node mapping.
 553 # It accepts the same set of cpu properties as returned by
 554 # query-hotpluggable-cpus[].props, where node-id could be used to
 555 # override default node mapping.
 556 #
 557 # Since: 2.10
 558 ##
 559 { 'struct': 'NumaCpuOptions',
 560    'base': 'CpuInstanceProperties',
 561    'data' : {} }
 562
 563 ##
 564 # @HmatLBMemoryHierarchy:
 565 #
 566 # The memory hierarchy in the System Locality Latency and Bandwidth
 567 # Information Structure of HMAT (Heterogeneous Memory Attribute Table)
 568 #
 569 # For more information about @HmatLBMemoryHierarchy, see chapter
 570 # 5.2.27.4: Table 5-146: Field "Flags" of ACPI 6.3 spec.
 571 #
 572 # @memory: the structure represents the memory performance
 573 #
 574 # @first-level: first level of memory side cache
 575 #
 576 # @second-level: second level of memory side cache
 577 #
 578 # @third-level: third level of memory side cache
 579 #
 580 # Since: 5.0
 581 ##
 582 { 'enum': 'HmatLBMemoryHierarchy',
 583   'data': [ 'memory', 'first-level', 'second-level', 'third-level' ] }
 584
 585 ##
 586 # @HmatLBDataType:
 587 #
 588 # Data type in the System Locality Latency and Bandwidth
 589 # Information Structure of HMAT (Heterogeneous Memory Attribute Table)
 590 #
 591 # For more information about @HmatLBDataType, see chapter
 592 # 5.2.27.4: Table 5-146:  Field "Data Type" of ACPI 6.3 spec.
 593 #
 594 # @access-latency: access latency (nanoseconds)
 595 #
 596 # @read-latency: read latency (nanoseconds)
 597 #
 598 # @write-latency: write latency (nanoseconds)
 599 #
 600 # @access-bandwidth: access bandwidth (Bytes per second)
 601 #
 602 # @read-bandwidth: read bandwidth (Bytes per second)
 603 #
 604 # @write-bandwidth: write bandwidth (Bytes per second)
 605 #
 606 # Since: 5.0
 607 ##
 608 { 'enum': 'HmatLBDataType',
 609   'data': [ 'access-latency', 'read-latency', 'write-latency',
 610             'access-bandwidth', 'read-bandwidth', 'write-bandwidth' ] }
 611
 612 ##
 613 # @NumaHmatLBOptions:
 614 #
 615 # Set the system locality latency and bandwidth information
 616 # between Initiator and Target proximity Domains.
 617 #
 618 # For more information about @NumaHmatLBOptions, see chapter
 619 # 5.2.27.4: Table 5-146 of ACPI 6.3 spec.
 620 #
 621 # @initiator: the Initiator Proximity Domain.
 622 #
 623 # @target: the Target Proximity Domain.
 624 #
 625 # @hierarchy: the Memory Hierarchy. Indicates the performance
 626 #             of memory or side cache.
 627 #
 628 # @data-type: presents the type of data, access/read/write
 629 #             latency or hit latency.
 630 #
 631 # @latency: the value of latency from @initiator to @target
 632 #           proximity domain, the latency unit is "ns(nanosecond)".
 633 #
 634 # @bandwidth: the value of bandwidth between @initiator and @target
 635 #             proximity domain, the bandwidth unit is
 636 #             "Bytes per second".
 637 #
 638 # Since: 5.0
 639 ##
 640 { 'struct': 'NumaHmatLBOptions',
 641     'data': {
 642     'initiator': 'uint16',
 643     'target': 'uint16',
 644     'hierarchy': 'HmatLBMemoryHierarchy',
 645     'data-type': 'HmatLBDataType',
 646     '*latency': 'uint64',
 647     '*bandwidth': 'size' }}
 648
 649 ##
 650 # @HostMemPolicy:
 651 #
 652 # Host memory policy types
 653 #
 654 # @default: restore default policy, remove any nondefault policy
 655 #
 656 # @preferred: set the preferred host nodes for allocation
 657 #
 658 # @bind: a strict policy that restricts memory allocation to the
 659 #        host nodes specified
 660 #
 661 # @interleave: memory allocations are interleaved across the set
 662 #              of host nodes specified
 663 #
 664 # Since: 2.1
 665 ##
 666 { 'enum': 'HostMemPolicy',
 667   'data': [ 'default', 'preferred', 'bind', 'interleave' ] }
 668
 669 ##
 670 # @Memdev:
 671 #
 672 # Information about memory backend
 673 #
 674 # @id: backend's ID if backend has 'id' property (since 2.9)
 675 #
 676 # @size: memory backend size
 677 #
 678 # @merge: enables or disables memory merge support
 679 #
 680 # @dump: includes memory backend's memory in a core dump or not
 681 #
 682 # @prealloc: enables or disables memory preallocation
 683 #
 684 # @host-nodes: host nodes for its memory policy
 685 #
 686 # @policy: memory policy of memory backend
 687 #
 688 # Since: 2.1
 689 ##
 690 { 'struct': 'Memdev',
 691   'data': {
 692     '*id':        'str',
 693     'size':       'size',
 694     'merge':      'bool',
 695     'dump':       'bool',
 696     'prealloc':   'bool',
 697     'host-nodes': ['uint16'],
 698     'policy':     'HostMemPolicy' }}
 699
 700 ##
 701 # @query-memdev:
 702 #
 703 # Returns information for all memory backends.
 704 #
 705 # Returns: a list of @Memdev.
 706 #
 707 # Since: 2.1
 708 #
 709 # Example:
 710 #
 711 # -> { "execute": "query-memdev" }
 712 # <- { "return": [
 713 #        {
 714 #          "id": "mem1",
 715 #          "size": 536870912,
 716 #          "merge": false,
 717 #          "dump": true,
 718 #          "prealloc": false,
 719 #          "host-nodes": [0, 1],
 720 #          "policy": "bind"
 721 #        },
 722 #        {
 723 #          "size": 536870912,
 724 #          "merge": false,
 725 #          "dump": true,
 726 #          "prealloc": true,
 727 #          "host-nodes": [2, 3],
 728 #          "policy": "preferred"
 729 #        }
 730 #      ]
 731 #    }
 732 #
 733 ##
 734 { 'command': 'query-memdev', 'returns': ['Memdev'], 'allow-preconfig': true }
 735
 736 ##
 737 # @CpuInstanceProperties:
 738 #
 739 # List of properties to be used for hotplugging a CPU instance,
 740 # it should be passed by management with device_add command when
 741 # a CPU is being hotplugged.
 742 #
 743 # @node-id: NUMA node ID the CPU belongs to
 744 # @socket-id: socket number within node/board the CPU belongs to
 745 # @die-id: die number within node/board the CPU belongs to (Since 4.1)
 746 # @core-id: core number within die the CPU belongs to# @thread-id: thread number within core the CPU belongs to
 747 #
 748 # Note: currently there are 5 properties that could be present
 749 # but management should be prepared to pass through other
 750 # properties with device_add command to allow for future
 751 # interface extension. This also requires the filed names to be kept in
 752 # sync with the properties passed to -device/device_add.
 753 #
 754 # Since: 2.7
 755 ##
 756 { 'struct': 'CpuInstanceProperties',
 757   'data': { '*node-id': 'int',
 758             '*socket-id': 'int',
 759             '*die-id': 'int',
 760             '*core-id': 'int',
 761             '*thread-id': 'int'
 762   }
 763 }
 764
 765 ##
 766 # @HotpluggableCPU:
 767 #
 768 # @type: CPU object type for usage with device_add command
 769 # @props: list of properties to be used for hotplugging CPU
 770 # @vcpus-count: number of logical VCPU threads @HotpluggableCPU provides
 771 # @qom-path: link to existing CPU object if CPU is present or
 772 #            omitted if CPU is not present.
 773 #
 774 # Since: 2.7
 775 ##
 776 { 'struct': 'HotpluggableCPU',
 777   'data': { 'type': 'str',
 778             'vcpus-count': 'int',
 779             'props': 'CpuInstanceProperties',
 780             '*qom-path': 'str'
 781           }
 782 }
 783
 784 ##
 785 # @query-hotpluggable-cpus:
 786 #
 787 # TODO: Better documentation; currently there is none.
 788 #
 789 # Returns: a list of HotpluggableCPU objects.
 790 #
 791 # Since: 2.7
 792 #
 793 # Example:
 794 #
 795 # For pseries machine type started with -smp 2,cores=2,maxcpus=4 -cpu POWER8:
 796 #
 797 # -> { "execute": "query-hotpluggable-cpus" }
 798 # <- {"return": [
 799 #      { "props": { "core": 8 }, "type": "POWER8-spapr-cpu-core",
 800 #        "vcpus-count": 1 },
 801 #      { "props": { "core": 0 }, "type": "POWER8-spapr-cpu-core",
 802 #        "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]"}
 803 #    ]}'
 804 #
 805 # For pc machine type started with -smp 1,maxcpus=2:
 806 #
 807 # -> { "execute": "query-hotpluggable-cpus" }
 808 # <- {"return": [
 809 #      {
 810 #         "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
 811 #         "props": {"core-id": 0, "socket-id": 1, "thread-id": 0}
 812 #      },
 813 #      {
 814 #         "qom-path": "/machine/unattached/device[0]",
 815 #         "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
 816 #         "props": {"core-id": 0, "socket-id": 0, "thread-id": 0}
 817 #      }
 818 #    ]}
 819 #
 820 # For s390x-virtio-ccw machine type started with -smp 1,maxcpus=2 -cpu qemu
 821 # (Since: 2.11):
 822 #
 823 # -> { "execute": "query-hotpluggable-cpus" }
 824 # <- {"return": [
 825 #      {
 826 #         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 827 #         "props": { "core-id": 1 }
 828 #      },
 829 #      {
 830 #         "qom-path": "/machine/unattached/device[0]",
 831 #         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 832 #         "props": { "core-id": 0 }
 833 #      }
 834 #    ]}
 835 #
 836 ##
 837 { 'command': 'query-hotpluggable-cpus', 'returns': ['HotpluggableCPU'],
 838              'allow-preconfig': true }
 839
 840 ##
 841 # @set-numa-node:
 842 #
 843 # Runtime equivalent of '-numa' CLI option, available at
 844 # preconfigure stage to configure numa mapping before initializing
 845 # machine.
 846 #
 847 # Since 3.0
 848 ##
 849 { 'command': 'set-numa-node', 'boxed': true,
 850   'data': 'NumaOptions',
 851   'allow-preconfig': true
 852 }