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authorAndrew Jones <drjones@redhat.com>2019-10-31 15:27:26 +0100
committerPeter Maydell <peter.maydell@linaro.org>2019-11-01 08:49:10 +0000
commite19afd5667819d74ab25d1a1171efe7b5002c6ee (patch)
treeb9808f7fa19b524e56c4feca31af7b8879ebae9d /qapi/machine-target.json
parentb7c9a7f353c0e260519bf735ff0d4aa01e72784b (diff)
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target/arm/monitor: Introduce qmp_query_cpu_model_expansion
Add support for the query-cpu-model-expansion QMP command to Arm. We do this selectively, only exposing CPU properties which represent optional CPU features which the user may want to enable/disable. Additionally we restrict the list of queryable cpu models to 'max', 'host', or the current type when KVM is in use. And, finally, we only implement expansion type 'full', as Arm does not yet have a "base" CPU type. More details and example queries are described in a new document (docs/arm-cpu-features.rst). Note, certainly more features may be added to the list of advertised features, e.g. 'vfp' and 'neon'. The only requirement is that we can detect invalid configurations and emit failures at QMP query time. For 'vfp' and 'neon' this will require some refactoring to share a validation function between the QMP query and the CPU realize functions. Signed-off-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Beata Michalska <beata.michalska@linaro.org> Message-id: 20191031142734.8590-2-drjones@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qapi/machine-target.json')
-rw-r--r--qapi/machine-target.json6
1 files changed, 3 insertions, 3 deletions
diff --git a/qapi/machine-target.json b/qapi/machine-target.json
index 55310a6..0462322 100644
--- a/qapi/machine-target.json
+++ b/qapi/machine-target.json
@@ -212,7 +212,7 @@
##
{ 'struct': 'CpuModelExpansionInfo',
'data': { 'model': 'CpuModelInfo' },
- 'if': 'defined(TARGET_S390X) || defined(TARGET_I386)' }
+ 'if': 'defined(TARGET_S390X) || defined(TARGET_I386) || defined(TARGET_ARM)' }
##
# @query-cpu-model-expansion:
@@ -237,7 +237,7 @@
# query-cpu-model-expansion while using these is not advised.
#
# Some architectures may not support all expansion types. s390x supports
-# "full" and "static".
+# "full" and "static". Arm only supports "full".
#
# Returns: a CpuModelExpansionInfo. Returns an error if expanding CPU models is
# not supported, if the model cannot be expanded, if the model contains
@@ -251,7 +251,7 @@
'data': { 'type': 'CpuModelExpansionType',
'model': 'CpuModelInfo' },
'returns': 'CpuModelExpansionInfo',
- 'if': 'defined(TARGET_S390X) || defined(TARGET_I386)' }
+ 'if': 'defined(TARGET_S390X) || defined(TARGET_I386) || defined(TARGET_ARM)' }
##
# @CpuDefinitionInfo: