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04109957d4
When user doesn't request any explicit CPU model with libvirt or QEMU, a machine type specific CPU model is picked. Currently there is no way to determine what this QEMU built-in default is, so libvirt cannot report this back to the user in the XML config. This extends the "query-machines" QMP command so that it reports the default CPU model typename for each machine. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20190822100412.23746-1-berrange@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
756 lines
18 KiB
Python
756 lines
18 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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##
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# @SysEmuTarget:
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#
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# The comprehensive enumeration of QEMU system emulation ("softmmu")
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# targets. Run "./configure --help" in the project root directory, and
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# look for the *-softmmu targets near the "--target-list" option. The
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# individual target constants are not documented here, for the time
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# being.
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#
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# Notes: The resulting QMP strings can be appended to the "qemu-system-"
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# prefix to produce the corresponding QEMU executable name. This
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# is true even for "qemu-system-x86_64".
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#
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# ppcemb: dropped in 3.1
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#
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# Since: 3.0
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##
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{ 'enum' : 'SysEmuTarget',
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'data' : [ 'aarch64', 'alpha', 'arm', 'cris', 'hppa', 'i386', 'lm32',
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'm68k', 'microblaze', 'microblazeel', 'mips', 'mips64',
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'mips64el', 'mipsel', 'moxie', 'nios2', 'or1k', 'ppc',
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'ppc64', 'riscv32', 'riscv64', 's390x', 'sh4',
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'sh4eb', 'sparc', 'sparc64', 'tricore', 'unicore32',
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'x86_64', 'xtensa', 'xtensaeb' ] }
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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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# @deprecated: if true, the machine type is deprecated and may be removed
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# in future versions of QEMU according to the QEMU deprecation
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# policy (since 4.1.0)
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#
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# @default-cpu-type: default CPU model typename if none is requested via
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# the -cpu argument. (since 4.2)
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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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'deprecated': 'bool', '*default-cpu-type': 'str' } }
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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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# @TargetInfo:
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#
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# Information describing the QEMU target.
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#
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# @arch: the target architecture
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#
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# Since: 1.2.0
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##
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{ 'struct': 'TargetInfo',
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'data': { 'arch': 'SysEmuTarget' } }
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##
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# @query-target:
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#
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# Return information about the target for this QEMU
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#
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# Returns: TargetInfo
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#
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# Since: 1.2.0
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##
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{ 'command': 'query-target', 'returns': 'TargetInfo' }
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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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#
|
|
# Since: 2.5
|
|
##
|
|
{ 'struct': 'DummyForceArrays',
|
|
'data': { 'unused': ['X86CPUFeatureWordInfo'] } }
|
|
|
|
##
|
|
# @NumaCpuOptions:
|
|
#
|
|
# Option "-numa cpu" overrides default cpu to node mapping.
|
|
# It accepts the same set of cpu properties as returned by
|
|
# query-hotpluggable-cpus[].props, where node-id could be used to
|
|
# override default node mapping.
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'NumaCpuOptions',
|
|
'base': 'CpuInstanceProperties',
|
|
'data' : {} }
|
|
|
|
##
|
|
# @HostMemPolicy:
|
|
#
|
|
# Host memory policy types
|
|
#
|
|
# @default: restore default policy, remove any nondefault policy
|
|
#
|
|
# @preferred: set the preferred host nodes for allocation
|
|
#
|
|
# @bind: a strict policy that restricts memory allocation to the
|
|
# host nodes specified
|
|
#
|
|
# @interleave: memory allocations are interleaved across the set
|
|
# of host nodes specified
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'enum': 'HostMemPolicy',
|
|
'data': [ 'default', 'preferred', 'bind', 'interleave' ] }
|
|
|
|
##
|
|
# @Memdev:
|
|
#
|
|
# Information about memory backend
|
|
#
|
|
# @id: backend's ID if backend has 'id' property (since 2.9)
|
|
#
|
|
# @size: memory backend size
|
|
#
|
|
# @merge: enables or disables memory merge support
|
|
#
|
|
# @dump: includes memory backend's memory in a core dump or not
|
|
#
|
|
# @prealloc: enables or disables memory preallocation
|
|
#
|
|
# @host-nodes: host nodes for its memory policy
|
|
#
|
|
# @policy: memory policy of memory backend
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'struct': 'Memdev',
|
|
'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
|
|
}
|