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authorVitaly Kuznetsov <vkuznets@redhat.com>2018-11-26 14:59:58 +0100
committerEduardo Habkost <ehabkost@redhat.com>2019-01-14 12:23:36 -0200
commita2b107dbbd342ff2077aa5af705efaf68c375459 (patch)
tree95e8fcefcd29f2171124ca515db5dfa6b086c597 /scripts/analyze-migration.py
parent7260438b7056469610ee166f7abe9ff8a26b8b16 (diff)
downloadfocaccia-qemu-a2b107dbbd342ff2077aa5af705efaf68c375459.tar.gz
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i386/kvm: expose HV_CPUID_ENLIGHTMENT_INFO.EAX and HV_CPUID_NESTED_FEATURES.EAX as feature words
It was found that QMP users of QEMU (e.g. libvirt) may need
HV_CPUID_ENLIGHTMENT_INFO.EAX/HV_CPUID_NESTED_FEATURES.EAX information. In
particular, 'hv_tlbflush' and 'hv_evmcs' enlightenments are only exposed in
HV_CPUID_ENLIGHTMENT_INFO.EAX.

HV_CPUID_NESTED_FEATURES.EAX is exposed for two reasons: convenience
(we don't need to export it from hyperv_handle_properties() and as
future-proof for Enlightened MSR-Bitmap, PV EPT invalidation and
direct virtual flush features.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20181126135958.20956-1-vkuznets@redhat.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'scripts/analyze-migration.py')
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