KVM: VMX: Don't invalidate hv_tlb_eptp if the new EPTP matches

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Don't invalidate the common EPTP, and thus trigger rechecking of EPTPs
across all vCPUs, if the new EPTP matches the old/common EPTP.  In all
likelihood this is a meaningless optimization, but there are (uncommon)
scenarios where KVM can reload the same EPTP.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210305183123.3978098-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Sean Christopherson 2021-03-05 10:31:19 -08:00 • committed by Paolo Bonzini

parent cdbd4b40e7

commit d0a2d45654

1 changed files with 2 additions and 1 deletions

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arch/x86/kvm/vmx/vmx.c

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