KVM: x86: Handle PKU CPUID adjustment in VMX code

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Move the setting of the PKU CPUID bit into VMX to eliminate an instance
of the undesirable "unsigned f_* = *_supported ? F(*) : 0" pattern in
the common CPUID handling code.  Drop ->pku_supported(), CPUID
adjustment was the only user.

Note, some AMD CPUs now support PKU, but SVM doesn't yet support
exposing it to a guest.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Sean Christopherson 2020-03-02 15:56:36 -08:00 • committed by Paolo Bonzini

parent e574768f84

commit d64d83d1e0

5 changed files with 5 additions and 18 deletions

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1

arch/x86/include/asm/kvm_host.h

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5

arch/x86/kvm/cpuid.c

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6

arch/x86/kvm/svm.c

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5

arch/x86/kvm/vmx/capabilities.h

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arch/x86/kvm/vmx/vmx.c

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