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 # Since: 1.2.0
 352 ##
 353 { 'struct': 'MachineInfo',
 354   'data': { 'name': 'str', '*alias': 'str',
 355             '*is-default': 'bool', 'cpu-max': 'int',
 356             'hotpluggable-cpus': 'bool',  'numa-mem-supported': 'bool',
 357             'deprecated': 'bool' } }
 358
 359 ##
 360 # @query-machines:
 361 #
 362 # Return a list of supported machines
 363 #
 364 # Returns: a list of MachineInfo
 365 #
 366 # Since: 1.2.0
 367 ##
 368 { 'command': 'query-machines', 'returns': ['MachineInfo'] }
 369
 370 ##
 371 # @CurrentMachineParams:
 372 #
 373 # Information describing the running machine parameters.
 374 #
 375 # @wakeup-suspend-support: true if the machine supports wake up from
 376 #                          suspend
 377 #
 378 # Since: 4.0
 379 ##
 380 { 'struct': 'CurrentMachineParams',
 381   'data': { 'wakeup-suspend-support': 'bool'} }
 382
 383 ##
 384 # @query-current-machine:
 385 #
 386 # Return information on the current virtual machine.
 387 #
 388 # Returns: CurrentMachineParams
 389 #
 390 # Since: 4.0
 391 ##
 392 { 'command': 'query-current-machine', 'returns': 'CurrentMachineParams' }
 393
 394 ##
 395 # @TargetInfo:
 396 #
 397 # Information describing the QEMU target.
 398 #
 399 # @arch: the target architecture
 400 #
 401 # Since: 1.2.0
 402 ##
 403 { 'struct': 'TargetInfo',
 404   'data': { 'arch': 'SysEmuTarget' } }
 405
 406 ##
 407 # @query-target:
 408 #
 409 # Return information about the target for this QEMU
 410 #
 411 # Returns: TargetInfo
 412 #
 413 # Since: 1.2.0
 414 ##
 415 { 'command': 'query-target', 'returns': 'TargetInfo' }
 416
 417 ##
 418 # @NumaOptionsType:
 419 #
 420 # @node: NUMA nodes configuration
 421 #
 422 # @dist: NUMA distance configuration (since 2.10)
 423 #
 424 # @cpu: property based CPU(s) to node mapping (Since: 2.10)
 425 #
 426 # Since: 2.1
 427 ##
 428 { 'enum': 'NumaOptionsType',
 429   'data': [ 'node', 'dist', 'cpu' ] }
 430
 431 ##
 432 # @NumaOptions:
 433 #
 434 # A discriminated record of NUMA options. (for OptsVisitor)
 435 #
 436 # Since: 2.1
 437 ##
 438 { 'union': 'NumaOptions',
 439   'base': { 'type': 'NumaOptionsType' },
 440   'discriminator': 'type',
 441   'data': {
 442     'node': 'NumaNodeOptions',
 443     'dist': 'NumaDistOptions',
 444     'cpu': 'NumaCpuOptions' }}
 445
 446 ##
 447 # @NumaNodeOptions:
 448 #
 449 # Create a guest NUMA node. (for OptsVisitor)
 450 #
 451 # @nodeid: NUMA node ID (increase by 1 from 0 if omitted)
 452 #
 453 # @cpus: VCPUs belonging to this node (assign VCPUS round-robin
 454 #         if omitted)
 455 #
 456 # @mem: memory size of this node; mutually exclusive with @memdev.
 457 #       Equally divide total memory among nodes if both @mem and @memdev are
 458 #       omitted.
 459 #
 460 # @memdev: memory backend object.  If specified for one node,
 461 #          it must be specified for all nodes.
 462 #
 463 # Since: 2.1
 464 ##
 465 { 'struct': 'NumaNodeOptions',
 466   'data': {
 467    '*nodeid': 'uint16',
 468    '*cpus':   ['uint16'],
 469    '*mem':    'size',
 470    '*memdev': 'str' }}
 471
 472 ##
 473 # @NumaDistOptions:
 474 #
 475 # Set the distance between 2 NUMA nodes.
 476 #
 477 # @src: source NUMA node.
 478 #
 479 # @dst: destination NUMA node.
 480 #
 481 # @val: NUMA distance from source node to destination node.
 482 #       When a node is unreachable from another node, set the distance
 483 #       between them to 255.
 484 #
 485 # Since: 2.10
 486 ##
 487 { 'struct': 'NumaDistOptions',
 488   'data': {
 489    'src': 'uint16',
 490    'dst': 'uint16',
 491    'val': 'uint8' }}
 492
 493 ##
 494 # @X86CPURegister32:
 495 #
 496 # A X86 32-bit register
 497 #
 498 # Since: 1.5
 499 ##
 500 { 'enum': 'X86CPURegister32',
 501   'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ] }
 502
 503 ##
 504 # @X86CPUFeatureWordInfo:
 505 #
 506 # Information about a X86 CPU feature word
 507 #
 508 # @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word
 509 #
 510 # @cpuid-input-ecx: Input ECX value for CPUID instruction for that
 511 #                   feature word
 512 #
 513 # @cpuid-register: Output register containing the feature bits
 514 #
 515 # @features: value of output register, containing the feature bits
 516 #
 517 # Since: 1.5
 518 ##
 519 { 'struct': 'X86CPUFeatureWordInfo',
 520   'data': { 'cpuid-input-eax': 'int',
 521             '*cpuid-input-ecx': 'int',
 522             'cpuid-register': 'X86CPURegister32',
 523             'features': 'int' } }
 524
 525 ##
 526 # @DummyForceArrays:
 527 #
 528 # Not used by QMP; hack to let us use X86CPUFeatureWordInfoList internally
 529 #
 530 # Since: 2.5
 531 ##
 532 { 'struct': 'DummyForceArrays',
 533   'data': { 'unused': ['X86CPUFeatureWordInfo'] } }
 534
 535 ##
 536 # @NumaCpuOptions:
 537 #
 538 # Option "-numa cpu" overrides default cpu to node mapping.
 539 # It accepts the same set of cpu properties as returned by
 540 # query-hotpluggable-cpus[].props, where node-id could be used to
 541 # override default node mapping.
 542 #
 543 # Since: 2.10
 544 ##
 545 { 'struct': 'NumaCpuOptions',
 546    'base': 'CpuInstanceProperties',
 547    'data' : {} }
 548
 549 ##
 550 # @HostMemPolicy:
 551 #
 552 # Host memory policy types
 553 #
 554 # @default: restore default policy, remove any nondefault policy
 555 #
 556 # @preferred: set the preferred host nodes for allocation
 557 #
 558 # @bind: a strict policy that restricts memory allocation to the
 559 #        host nodes specified
 560 #
 561 # @interleave: memory allocations are interleaved across the set
 562 #              of host nodes specified
 563 #
 564 # Since: 2.1
 565 ##
 566 { 'enum': 'HostMemPolicy',
 567   'data': [ 'default', 'preferred', 'bind', 'interleave' ] }
 568
 569 ##
 570 # @Memdev:
 571 #
 572 # Information about memory backend
 573 #
 574 # @id: backend's ID if backend has 'id' property (since 2.9)
 575 #
 576 # @size: memory backend size
 577 #
 578 # @merge: enables or disables memory merge support
 579 #
 580 # @dump: includes memory backend's memory in a core dump or not
 581 #
 582 # @prealloc: enables or disables memory preallocation
 583 #
 584 # @host-nodes: host nodes for its memory policy
 585 #
 586 # @policy: memory policy of memory backend
 587 #
 588 # Since: 2.1
 589 ##
 590 { 'struct': 'Memdev',
 591   'data': {
 592     '*id':        'str',
 593     'size':       'size',
 594     'merge':      'bool',
 595     'dump':       'bool',
 596     'prealloc':   'bool',
 597     'host-nodes': ['uint16'],
 598     'policy':     'HostMemPolicy' }}
 599
 600 ##
 601 # @query-memdev:
 602 #
 603 # Returns information for all memory backends.
 604 #
 605 # Returns: a list of @Memdev.
 606 #
 607 # Since: 2.1
 608 #
 609 # Example:
 610 #
 611 # -> { "execute": "query-memdev" }
 612 # <- { "return": [
 613 #        {
 614 #          "id": "mem1",
 615 #          "size": 536870912,
 616 #          "merge": false,
 617 #          "dump": true,
 618 #          "prealloc": false,
 619 #          "host-nodes": [0, 1],
 620 #          "policy": "bind"
 621 #        },
 622 #        {
 623 #          "size": 536870912,
 624 #          "merge": false,
 625 #          "dump": true,
 626 #          "prealloc": true,
 627 #          "host-nodes": [2, 3],
 628 #          "policy": "preferred"
 629 #        }
 630 #      ]
 631 #    }
 632 #
 633 ##
 634 { 'command': 'query-memdev', 'returns': ['Memdev'], 'allow-preconfig': true }
 635
 636 ##
 637 # @CpuInstanceProperties:
 638 #
 639 # List of properties to be used for hotplugging a CPU instance,
 640 # it should be passed by management with device_add command when
 641 # a CPU is being hotplugged.
 642 #
 643 # @node-id: NUMA node ID the CPU belongs to
 644 # @socket-id: socket number within node/board the CPU belongs to
 645 # @die-id: die number within node/board the CPU belongs to (Since 4.1)
 646 # @core-id: core number within die the CPU belongs to# @thread-id: thread number within core the CPU belongs to
 647 #
 648 # Note: currently there are 5 properties that could be present
 649 # but management should be prepared to pass through other
 650 # properties with device_add command to allow for future
 651 # interface extension. This also requires the filed names to be kept in
 652 # sync with the properties passed to -device/device_add.
 653 #
 654 # Since: 2.7
 655 ##
 656 { 'struct': 'CpuInstanceProperties',
 657   'data': { '*node-id': 'int',
 658             '*socket-id': 'int',
 659             '*die-id': 'int',
 660             '*core-id': 'int',
 661             '*thread-id': 'int'
 662   }
 663 }
 664
 665 ##
 666 # @HotpluggableCPU:
 667 #
 668 # @type: CPU object type for usage with device_add command
 669 # @props: list of properties to be used for hotplugging CPU
 670 # @vcpus-count: number of logical VCPU threads @HotpluggableCPU provides
 671 # @qom-path: link to existing CPU object if CPU is present or
 672 #            omitted if CPU is not present.
 673 #
 674 # Since: 2.7
 675 ##
 676 { 'struct': 'HotpluggableCPU',
 677   'data': { 'type': 'str',
 678             'vcpus-count': 'int',
 679             'props': 'CpuInstanceProperties',
 680             '*qom-path': 'str'
 681           }
 682 }
 683
 684 ##
 685 # @query-hotpluggable-cpus:
 686 #
 687 # TODO: Better documentation; currently there is none.
 688 #
 689 # Returns: a list of HotpluggableCPU objects.
 690 #
 691 # Since: 2.7
 692 #
 693 # Example:
 694 #
 695 # For pseries machine type started with -smp 2,cores=2,maxcpus=4 -cpu POWER8:
 696 #
 697 # -> { "execute": "query-hotpluggable-cpus" }
 698 # <- {"return": [
 699 #      { "props": { "core": 8 }, "type": "POWER8-spapr-cpu-core",
 700 #        "vcpus-count": 1 },
 701 #      { "props": { "core": 0 }, "type": "POWER8-spapr-cpu-core",
 702 #        "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]"}
 703 #    ]}'
 704 #
 705 # For pc machine type started with -smp 1,maxcpus=2:
 706 #
 707 # -> { "execute": "query-hotpluggable-cpus" }
 708 # <- {"return": [
 709 #      {
 710 #         "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
 711 #         "props": {"core-id": 0, "socket-id": 1, "thread-id": 0}
 712 #      },
 713 #      {
 714 #         "qom-path": "/machine/unattached/device[0]",
 715 #         "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
 716 #         "props": {"core-id": 0, "socket-id": 0, "thread-id": 0}
 717 #      }
 718 #    ]}
 719 #
 720 # For s390x-virtio-ccw machine type started with -smp 1,maxcpus=2 -cpu qemu
 721 # (Since: 2.11):
 722 #
 723 # -> { "execute": "query-hotpluggable-cpus" }
 724 # <- {"return": [
 725 #      {
 726 #         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 727 #         "props": { "core-id": 1 }
 728 #      },
 729 #      {
 730 #         "qom-path": "/machine/unattached/device[0]",
 731 #         "type": "qemu-s390x-cpu", "vcpus-count": 1,
 732 #         "props": { "core-id": 0 }
 733 #      }
 734 #    ]}
 735 #
 736 ##
 737 { 'command': 'query-hotpluggable-cpus', 'returns': ['HotpluggableCPU'],
 738              'allow-preconfig': true }
 739
 740 ##
 741 # @set-numa-node:
 742 #
 743 # Runtime equivalent of '-numa' CLI option, available at
 744 # preconfigure stage to configure numa mapping before initializing
 745 # machine.
 746 #
 747 # Since 3.0
 748 ##
 749 { 'command': 'set-numa-node', 'boxed': true,
 750   'data': 'NumaOptions',
 751   'allow-preconfig': true
 752 }