KVM: x86: Use KVM cpu caps to mark CR4.LA57 as not-reserved

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Add accessor(s) for KVM cpu caps and use said accessor to detect
hardware support for LA57 instead of manually querying CPUID.

Note, the explicit conversion to bool via '!!' in kvm_cpu_cap_has() is
technically unnecessary, but it gives people a warm fuzzy feeling.

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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Sean Christopherson 2020-03-02 15:56:46 -08:00 • committed by Paolo Bonzini

parent 8721f5b061

commit c10398b6d0

2 changed files with 14 additions and 1 deletions

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13

arch/x86/kvm/cpuid.h

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2

arch/x86/kvm/x86.c

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