KVM: x86: Use KVM-governed feature framework to track "XSAVES enabled"

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Use the governed feature framework to track if XSAVES is "enabled", i.e.
if XSAVES can be used by the guest.  Add a comment in the SVM code to
explain the very unintuitive logic of deliberately NOT checking if XSAVES
is enumerated in the guest CPUID model.

No functional change intended.

Reviewed-by: Yuan Yao <yuan.yao@intel.com>
Link: https://lore.kernel.org/r/20230815203653.519297-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2023-08-15 13:36:44 -07:00

parent 662f681578

commit fe60e8f65f

5 changed files with 35 additions and 24 deletions

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1

arch/x86/include/asm/kvm_host.h

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1

arch/x86/kvm/governed_features.h

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17

arch/x86/kvm/svm/svm.c

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36

arch/x86/kvm/vmx/vmx.c

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4

arch/x86/kvm/x86.c

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