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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-09-05 10:52:41 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-09-06 17:06:51 +0200 |
| commit | b18b6043341dfad46cbda7804424a1604cea065b (patch) | |
| tree | 94e0fb9f3aa2a78df4310715983da227d14d13d8 /qapi-schema.json | |
| parent | 0031e0d68339e7a919cf927119807ed882da6e4f (diff) | |
| download | qemu-b18b6043341dfad46cbda7804424a1604cea065b.tar.gz | |
qmp: add QMP interface "query-cpu-model-baseline"
Let's provide a standardized interface to baseline two CPU models, to
create a third, compatible one. This is especially helpful when two
CPU models are not identical, but a CPU model is required that is
guaranteed to run under both configurations, where the original models run.
"query-cpu-model-baseline" takes two CPU models and returns a third,
compatible model. The result will always be a static CPU model.
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <20160905085244.99980-28-dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'qapi-schema.json')
| -rw-r--r-- | qapi-schema.json | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/qapi-schema.json b/qapi-schema.json index 8ab2ae9b78..44cc71eb16 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -3244,6 +3244,57 @@ 'data': { 'modela': 'CpuModelInfo', 'modelb': 'CpuModelInfo' }, 'returns': 'CpuModelCompareInfo' } +## +# @CpuModelBaselineInfo +# +# The result of a CPU model baseline. +# +# @model: the baselined CpuModelInfo. +# +# Since: 2.8.0 +## +{ 'struct': 'CpuModelBaselineInfo', + 'data': { 'model': 'CpuModelInfo' } } + +## +# @query-cpu-model-baseline: +# +# Baseline two CPU models, creating a compatible third model. The created +# model will always be a static, migration-safe CPU model (see "static" +# CPU model expansion for details). +# +# This interface can be used by tooling to create a compatible CPU model out +# two CPU models. The created CPU model will be identical to or a subset of +# both CPU models when comparing them. Therefore, the created CPU model is +# guaranteed to run where the given CPU models run. +# +# The result returned by this command may be affected by: +# +# * QEMU version: CPU models may look different depending on the QEMU version. +# (Except for CPU models reported as "static" in query-cpu-definitions.) +# * machine-type: CPU model may look different depending on the machine-type. +# (Except for CPU models reported as "static" in query-cpu-definitions.) +# * machine options (including accelerator): in some architectures, CPU models +# may look different depending on machine and accelerator options. (Except for +# CPU models reported as "static" in query-cpu-definitions.) +# * "-cpu" arguments and global properties: arguments to the -cpu option and +# global properties may affect expansion of CPU models. Using +# query-cpu-model-expansion while using these is not advised. +# +# Some architectures may not support baselining CPU models. +# +# Returns: a CpuModelBaselineInfo. Returns an error if baselining CPU models is +# not supported, if a model cannot be used, if a model contains +# an unknown cpu definition name, unknown properties or properties +# with wrong types. +# +# Since: 2.8.0 +## +{ 'command': 'query-cpu-model-baseline', + 'data': { 'modela': 'CpuModelInfo', + 'modelb': 'CpuModelInfo' }, + 'returns': 'CpuModelBaselineInfo' } + # @AddfdInfo: # # Information about a file descriptor that was added to an fd set. |