cd5ff8333a
Legacy '-numa node,mem' option has a number of issues and mgmt often defaults to it. Unfortunately it's no possible to replace it with an alternative '-numa memdev' without breaking migration compatibility. What's possible though is to deprecate it, keeping option working with old machine types only. In order to help users to find out if being deprecated CLI option '-numa node,mem' is still supported by particular machine type, add new "numa-mem-supported" property to output of query-machines. "numa-mem-supported" is set to 'true' for machines that currently support NUMA, but it will be flipped to 'false' later on, once deprecation period expires and kept 'true' only for old machine types that used to support the legacy option so it won't break existing configuration that are using it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1560172207-378962-1-git-send-email-imammedo@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
702 lines
16 KiB
Python
702 lines
16 KiB
Python
# -*- Mode: Python -*-
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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##
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# = Machines
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##
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{ 'include': 'common.json' }
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##
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# @CpuInfoArch:
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#
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# An enumeration of cpu types that enable additional information during
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# @query-cpus and @query-cpus-fast.
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#
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# @s390: since 2.12
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#
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# @riscv: since 2.12
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#
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# Since: 2.6
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##
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{ 'enum': 'CpuInfoArch',
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'data': ['x86', 'sparc', 'ppc', 'mips', 'tricore', 's390', 'riscv', 'other' ] }
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##
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# @CpuInfo:
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#
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# Information about a virtual CPU
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#
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# @CPU: the index of the virtual CPU
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#
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# @current: this only exists for backwards compatibility and should be ignored
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#
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# @halted: true if the virtual CPU is in the halt state. Halt usually refers
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# to a processor specific low power mode.
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#
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# @qom_path: path to the CPU object in the QOM tree (since 2.4)
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#
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# @thread_id: ID of the underlying host thread
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#
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# @props: properties describing to which node/socket/core/thread
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# virtual CPU belongs to, provided if supported by board (since 2.10)
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#
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# @arch: architecture of the cpu, which determines which additional fields
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# will be listed (since 2.6)
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#
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# Since: 0.14.0
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#
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# Notes: @halted is a transient state that changes frequently. By the time the
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# data is sent to the client, the guest may no longer be halted.
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##
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{ 'union': 'CpuInfo',
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'base': {'CPU': 'int', 'current': 'bool', 'halted': 'bool',
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'qom_path': 'str', 'thread_id': 'int',
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'*props': 'CpuInstanceProperties', 'arch': 'CpuInfoArch' },
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'discriminator': 'arch',
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'data': { 'x86': 'CpuInfoX86',
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'sparc': 'CpuInfoSPARC',
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'ppc': 'CpuInfoPPC',
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'mips': 'CpuInfoMIPS',
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'tricore': 'CpuInfoTricore',
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's390': 'CpuInfoS390',
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'riscv': 'CpuInfoRISCV' } }
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##
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# @CpuInfoX86:
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#
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# Additional information about a virtual i386 or x86_64 CPU
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#
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# @pc: the 64-bit instruction pointer
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#
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# Since: 2.6
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##
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{ 'struct': 'CpuInfoX86', 'data': { 'pc': 'int' } }
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##
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# @CpuInfoSPARC:
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#
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# Additional information about a virtual SPARC CPU
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#
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# @pc: the PC component of the instruction pointer
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#
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# @npc: the NPC component of the instruction pointer
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#
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# Since: 2.6
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##
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{ 'struct': 'CpuInfoSPARC', 'data': { 'pc': 'int', 'npc': 'int' } }
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##
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# @CpuInfoPPC:
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#
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# Additional information about a virtual PPC CPU
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#
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# @nip: the instruction pointer
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#
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# Since: 2.6
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##
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{ 'struct': 'CpuInfoPPC', 'data': { 'nip': 'int' } }
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##
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# @CpuInfoMIPS:
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#
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# Additional information about a virtual MIPS CPU
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#
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# @PC: the instruction pointer
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#
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# Since: 2.6
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##
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{ 'struct': 'CpuInfoMIPS', 'data': { 'PC': 'int' } }
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##
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# @CpuInfoTricore:
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#
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# Additional information about a virtual Tricore CPU
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#
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# @PC: the instruction pointer
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#
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# Since: 2.6
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##
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{ 'struct': 'CpuInfoTricore', 'data': { 'PC': 'int' } }
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##
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# @CpuInfoRISCV:
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#
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# Additional information about a virtual RISCV CPU
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#
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# @pc: the instruction pointer
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#
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# Since 2.12
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##
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{ 'struct': 'CpuInfoRISCV', 'data': { 'pc': 'int' } }
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##
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# @CpuS390State:
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#
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# An enumeration of cpu states that can be assumed by a virtual
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# S390 CPU
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#
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# Since: 2.12
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##
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{ 'enum': 'CpuS390State',
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'prefix': 'S390_CPU_STATE',
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'data': [ 'uninitialized', 'stopped', 'check-stop', 'operating', 'load' ] }
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##
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# @CpuInfoS390:
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#
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# Additional information about a virtual S390 CPU
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#
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# @cpu-state: the virtual CPU's state
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#
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# Since: 2.12
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##
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{ 'struct': 'CpuInfoS390', 'data': { 'cpu-state': 'CpuS390State' } }
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##
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# @query-cpus:
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#
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# Returns a list of information about each virtual CPU.
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#
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# This command causes vCPU threads to exit to userspace, which causes
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# a small interruption to guest CPU execution. This will have a negative
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# impact on realtime guests and other latency sensitive guest workloads.
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# It is recommended to use @query-cpus-fast instead of this command to
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# avoid the vCPU interruption.
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#
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# Returns: a list of @CpuInfo for each virtual CPU
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#
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# Since: 0.14.0
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#
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# Example:
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#
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# -> { "execute": "query-cpus" }
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# <- { "return": [
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# {
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# "CPU":0,
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# "current":true,
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# "halted":false,
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# "qom_path":"/machine/unattached/device[0]",
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# "arch":"x86",
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# "pc":3227107138,
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# "thread_id":3134
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# },
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# {
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# "CPU":1,
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# "current":false,
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# "halted":true,
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# "qom_path":"/machine/unattached/device[2]",
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# "arch":"x86",
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# "pc":7108165,
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# "thread_id":3135
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# }
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# ]
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# }
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#
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# Notes: This interface is deprecated (since 2.12.0), and it is strongly
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# recommended that you avoid using it. Use @query-cpus-fast to
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# obtain information about virtual CPUs.
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#
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##
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{ 'command': 'query-cpus', 'returns': ['CpuInfo'] }
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##
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# @CpuInfoFast:
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#
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# Information about a virtual CPU
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#
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# @cpu-index: index of the virtual CPU
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#
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# @qom-path: path to the CPU object in the QOM tree
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#
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# @thread-id: ID of the underlying host thread
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#
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# @props: properties describing to which node/socket/core/thread
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# virtual CPU belongs to, provided if supported by board
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#
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# @arch: base architecture of the cpu; deprecated since 3.0.0 in favor
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# of @target
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#
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# @target: the QEMU system emulation target, which determines which
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# additional fields will be listed (since 3.0)
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#
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# Since: 2.12
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#
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##
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{ 'union' : 'CpuInfoFast',
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'base' : { 'cpu-index' : 'int',
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'qom-path' : 'str',
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'thread-id' : 'int',
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'*props' : 'CpuInstanceProperties',
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'arch' : 'CpuInfoArch',
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'target' : 'SysEmuTarget' },
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'discriminator' : 'target',
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'data' : { 's390x' : 'CpuInfoS390' } }
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##
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# @query-cpus-fast:
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#
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# Returns information about all virtual CPUs. This command does not
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# incur a performance penalty and should be used in production
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# instead of query-cpus.
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#
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# Returns: list of @CpuInfoFast
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#
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# Since: 2.12
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#
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# Example:
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#
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# -> { "execute": "query-cpus-fast" }
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# <- { "return": [
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# {
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# "thread-id": 25627,
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# "props": {
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# "core-id": 0,
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# "thread-id": 0,
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# "socket-id": 0
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# },
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# "qom-path": "/machine/unattached/device[0]",
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# "arch":"x86",
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# "target":"x86_64",
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# "cpu-index": 0
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# },
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# {
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# "thread-id": 25628,
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# "props": {
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# "core-id": 0,
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# "thread-id": 0,
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# "socket-id": 1
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# },
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# "qom-path": "/machine/unattached/device[2]",
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# "arch":"x86",
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# "target":"x86_64",
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# "cpu-index": 1
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# }
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# ]
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# }
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##
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{ 'command': 'query-cpus-fast', 'returns': [ 'CpuInfoFast' ] }
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##
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# @cpu-add:
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#
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# Adds CPU with specified ID.
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#
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# @id: ID of CPU to be created, valid values [0..max_cpus)
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#
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# Returns: Nothing on success
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#
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# Since: 1.5
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#
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# Note: This command is deprecated. The `device_add` command should be
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# used instead. See the `query-hotpluggable-cpus` command for
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# details.
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#
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# Example:
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#
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# -> { "execute": "cpu-add", "arguments": { "id": 2 } }
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# <- { "return": {} }
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#
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##
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{ 'command': 'cpu-add', 'data': {'id': 'int'} }
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##
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# @MachineInfo:
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#
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# Information describing a machine.
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#
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# @name: the name of the machine
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#
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# @alias: an alias for the machine name
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#
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# @is-default: whether the machine is default
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#
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# @cpu-max: maximum number of CPUs supported by the machine type
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# (since 1.5.0)
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#
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# @hotpluggable-cpus: cpu hotplug via -device is supported (since 2.7.0)
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#
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# @numa-mem-supported: true if '-numa node,mem' option is supported by
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# the machine type and false otherwise (since 4.1)
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#
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# Since: 1.2.0
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##
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{ 'struct': 'MachineInfo',
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'data': { 'name': 'str', '*alias': 'str',
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'*is-default': 'bool', 'cpu-max': 'int',
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'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool'} }
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##
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# @query-machines:
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#
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# Return a list of supported machines
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#
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# Returns: a list of MachineInfo
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#
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# Since: 1.2.0
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##
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{ 'command': 'query-machines', 'returns': ['MachineInfo'] }
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##
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# @CurrentMachineParams:
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#
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# Information describing the running machine parameters.
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#
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# @wakeup-suspend-support: true if the machine supports wake up from
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# suspend
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#
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# Since: 4.0
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##
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{ 'struct': 'CurrentMachineParams',
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'data': { 'wakeup-suspend-support': 'bool'} }
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##
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# @query-current-machine:
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#
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# Return information on the current virtual machine.
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#
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# Returns: CurrentMachineParams
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#
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# Since: 4.0
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##
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{ 'command': 'query-current-machine', 'returns': 'CurrentMachineParams' }
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##
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# @NumaOptionsType:
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#
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# @node: NUMA nodes configuration
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#
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# @dist: NUMA distance configuration (since 2.10)
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#
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# @cpu: property based CPU(s) to node mapping (Since: 2.10)
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#
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# Since: 2.1
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##
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{ 'enum': 'NumaOptionsType',
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'data': [ 'node', 'dist', 'cpu' ] }
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##
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# @NumaOptions:
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#
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# A discriminated record of NUMA options. (for OptsVisitor)
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#
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# Since: 2.1
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##
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{ 'union': 'NumaOptions',
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'base': { 'type': 'NumaOptionsType' },
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'discriminator': 'type',
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'data': {
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'node': 'NumaNodeOptions',
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'dist': 'NumaDistOptions',
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'cpu': 'NumaCpuOptions' }}
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##
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# @NumaNodeOptions:
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#
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# Create a guest NUMA node. (for OptsVisitor)
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#
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# @nodeid: NUMA node ID (increase by 1 from 0 if omitted)
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#
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# @cpus: VCPUs belonging to this node (assign VCPUS round-robin
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# if omitted)
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#
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# @mem: memory size of this node; mutually exclusive with @memdev.
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# Equally divide total memory among nodes if both @mem and @memdev are
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# omitted.
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#
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# @memdev: memory backend object. If specified for one node,
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# it must be specified for all nodes.
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#
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# Since: 2.1
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##
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{ 'struct': 'NumaNodeOptions',
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'data': {
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'*nodeid': 'uint16',
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'*cpus': ['uint16'],
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'*mem': 'size',
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'*memdev': 'str' }}
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##
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# @NumaDistOptions:
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#
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# Set the distance between 2 NUMA nodes.
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#
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# @src: source NUMA node.
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#
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# @dst: destination NUMA node.
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#
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# @val: NUMA distance from source node to destination node.
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# When a node is unreachable from another node, set the distance
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# between them to 255.
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#
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# Since: 2.10
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##
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{ 'struct': 'NumaDistOptions',
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'data': {
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'src': 'uint16',
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'dst': 'uint16',
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'val': 'uint8' }}
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##
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# @X86CPURegister32:
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#
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# A X86 32-bit register
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#
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# Since: 1.5
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##
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{ 'enum': 'X86CPURegister32',
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'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ] }
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##
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# @X86CPUFeatureWordInfo:
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#
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# Information about a X86 CPU feature word
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#
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# @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word
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#
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# @cpuid-input-ecx: Input ECX value for CPUID instruction for that
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# feature word
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#
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# @cpuid-register: Output register containing the feature bits
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#
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# @features: value of output register, containing the feature bits
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#
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# Since: 1.5
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##
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{ 'struct': 'X86CPUFeatureWordInfo',
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'data': { 'cpuid-input-eax': 'int',
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'*cpuid-input-ecx': 'int',
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'cpuid-register': 'X86CPURegister32',
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'features': 'int' } }
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##
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# @DummyForceArrays:
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#
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# Not used by QMP; hack to let us use X86CPUFeatureWordInfoList internally
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#
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# Since: 2.5
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##
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{ 'struct': 'DummyForceArrays',
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'data': { 'unused': ['X86CPUFeatureWordInfo'] } }
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##
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# @NumaCpuOptions:
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#
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# Option "-numa cpu" overrides default cpu to node mapping.
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# It accepts the same set of cpu properties as returned by
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# query-hotpluggable-cpus[].props, where node-id could be used to
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# override default node mapping.
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#
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# Since: 2.10
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##
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{ 'struct': 'NumaCpuOptions',
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'base': 'CpuInstanceProperties',
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'data' : {} }
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##
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# @HostMemPolicy:
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#
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# Host memory policy types
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#
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# @default: restore default policy, remove any nondefault policy
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#
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# @preferred: set the preferred host nodes for allocation
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#
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# @bind: a strict policy that restricts memory allocation to the
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# host nodes specified
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#
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# @interleave: memory allocations are interleaved across the set
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# of host nodes specified
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#
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# Since: 2.1
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##
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{ 'enum': 'HostMemPolicy',
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'data': [ 'default', 'preferred', 'bind', 'interleave' ] }
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##
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# @Memdev:
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#
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# Information about memory backend
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#
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# @id: backend's ID if backend has 'id' property (since 2.9)
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#
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# @size: memory backend size
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#
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# @merge: enables or disables memory merge support
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#
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# @dump: includes memory backend's memory in a core dump or not
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#
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# @prealloc: enables or disables memory preallocation
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#
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# @host-nodes: host nodes for its memory policy
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#
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# @policy: memory policy of memory backend
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#
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# Since: 2.1
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##
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{ 'struct': 'Memdev',
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'data': {
|
|
'*id': 'str',
|
|
'size': 'size',
|
|
'merge': 'bool',
|
|
'dump': 'bool',
|
|
'prealloc': 'bool',
|
|
'host-nodes': ['uint16'],
|
|
'policy': 'HostMemPolicy' }}
|
|
|
|
##
|
|
# @query-memdev:
|
|
#
|
|
# Returns information for all memory backends.
|
|
#
|
|
# Returns: a list of @Memdev.
|
|
#
|
|
# Since: 2.1
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "query-memdev" }
|
|
# <- { "return": [
|
|
# {
|
|
# "id": "mem1",
|
|
# "size": 536870912,
|
|
# "merge": false,
|
|
# "dump": true,
|
|
# "prealloc": false,
|
|
# "host-nodes": [0, 1],
|
|
# "policy": "bind"
|
|
# },
|
|
# {
|
|
# "size": 536870912,
|
|
# "merge": false,
|
|
# "dump": true,
|
|
# "prealloc": true,
|
|
# "host-nodes": [2, 3],
|
|
# "policy": "preferred"
|
|
# }
|
|
# ]
|
|
# }
|
|
#
|
|
##
|
|
{ 'command': 'query-memdev', 'returns': ['Memdev'], 'allow-preconfig': true }
|
|
|
|
##
|
|
# @CpuInstanceProperties:
|
|
#
|
|
# List of properties to be used for hotplugging a CPU instance,
|
|
# it should be passed by management with device_add command when
|
|
# a CPU is being hotplugged.
|
|
#
|
|
# @node-id: NUMA node ID the CPU belongs to
|
|
# @socket-id: socket number within node/board the CPU belongs to
|
|
# @die-id: die number within node/board the CPU belongs to (Since 4.1)
|
|
# @core-id: core number within die the CPU belongs to# @thread-id: thread number within core the CPU belongs to
|
|
#
|
|
# Note: currently there are 5 properties that could be present
|
|
# but management should be prepared to pass through other
|
|
# properties with device_add command to allow for future
|
|
# interface extension. This also requires the filed names to be kept in
|
|
# sync with the properties passed to -device/device_add.
|
|
#
|
|
# Since: 2.7
|
|
##
|
|
{ 'struct': 'CpuInstanceProperties',
|
|
'data': { '*node-id': 'int',
|
|
'*socket-id': 'int',
|
|
'*die-id': 'int',
|
|
'*core-id': 'int',
|
|
'*thread-id': 'int'
|
|
}
|
|
}
|
|
|
|
##
|
|
# @HotpluggableCPU:
|
|
#
|
|
# @type: CPU object type for usage with device_add command
|
|
# @props: list of properties to be used for hotplugging CPU
|
|
# @vcpus-count: number of logical VCPU threads @HotpluggableCPU provides
|
|
# @qom-path: link to existing CPU object if CPU is present or
|
|
# omitted if CPU is not present.
|
|
#
|
|
# Since: 2.7
|
|
##
|
|
{ 'struct': 'HotpluggableCPU',
|
|
'data': { 'type': 'str',
|
|
'vcpus-count': 'int',
|
|
'props': 'CpuInstanceProperties',
|
|
'*qom-path': 'str'
|
|
}
|
|
}
|
|
|
|
##
|
|
# @query-hotpluggable-cpus:
|
|
#
|
|
# TODO: Better documentation; currently there is none.
|
|
#
|
|
# Returns: a list of HotpluggableCPU objects.
|
|
#
|
|
# Since: 2.7
|
|
#
|
|
# Example:
|
|
#
|
|
# For pseries machine type started with -smp 2,cores=2,maxcpus=4 -cpu POWER8:
|
|
#
|
|
# -> { "execute": "query-hotpluggable-cpus" }
|
|
# <- {"return": [
|
|
# { "props": { "core": 8 }, "type": "POWER8-spapr-cpu-core",
|
|
# "vcpus-count": 1 },
|
|
# { "props": { "core": 0 }, "type": "POWER8-spapr-cpu-core",
|
|
# "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]"}
|
|
# ]}'
|
|
#
|
|
# For pc machine type started with -smp 1,maxcpus=2:
|
|
#
|
|
# -> { "execute": "query-hotpluggable-cpus" }
|
|
# <- {"return": [
|
|
# {
|
|
# "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
|
|
# "props": {"core-id": 0, "socket-id": 1, "thread-id": 0}
|
|
# },
|
|
# {
|
|
# "qom-path": "/machine/unattached/device[0]",
|
|
# "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
|
|
# "props": {"core-id": 0, "socket-id": 0, "thread-id": 0}
|
|
# }
|
|
# ]}
|
|
#
|
|
# For s390x-virtio-ccw machine type started with -smp 1,maxcpus=2 -cpu qemu
|
|
# (Since: 2.11):
|
|
#
|
|
# -> { "execute": "query-hotpluggable-cpus" }
|
|
# <- {"return": [
|
|
# {
|
|
# "type": "qemu-s390x-cpu", "vcpus-count": 1,
|
|
# "props": { "core-id": 1 }
|
|
# },
|
|
# {
|
|
# "qom-path": "/machine/unattached/device[0]",
|
|
# "type": "qemu-s390x-cpu", "vcpus-count": 1,
|
|
# "props": { "core-id": 0 }
|
|
# }
|
|
# ]}
|
|
#
|
|
##
|
|
{ 'command': 'query-hotpluggable-cpus', 'returns': ['HotpluggableCPU'],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @set-numa-node:
|
|
#
|
|
# Runtime equivalent of '-numa' CLI option, available at
|
|
# preconfigure stage to configure numa mapping before initializing
|
|
# machine.
|
|
#
|
|
# Since 3.0
|
|
##
|
|
{ 'command': 'set-numa-node', 'boxed': true,
|
|
'data': 'NumaOptions',
|
|
'allow-preconfig': true
|
|
}
|