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Expose support for HyperV features via QMP
From: |
manish.mishra |
Subject: |
Expose support for HyperV features via QMP |
Date: |
Tue, 31 Jan 2023 20:17:35 +0530 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 |
Hi Everyone,
I hope everyone is doing great. We wanted to check why we do not
expose support for HyperV features in Qemu similar to what we do
for normal CPU features via query-cpu-defs or
cpu-model-expansion QMP commands. This support is required for
live migration with HyperV features as hyperv passthrough is not
an option. If users had knowledge of what features are supported
by source and destination, VM can be started with an
intersection of features supported by both source and
destination.
If there is no specific reason for not doing this, does it make
sense to add a new QMP which expose support (internally also
validating with KVM or KVM_GET_SUPPORTED_HV_CPUID ioctl) for
HyperV features.
Apologies in advance if i misunderstood something.
Thanks
Manish Mishra
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