KVM: x86/mmu: Expand on the comment in kvm_vcpu_ad_need_write_protect()
authorSean Christopherson <seanjc@google.com>
Sat, 13 Feb 2021 00:50:08 +0000 (16:50 -0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 19 Feb 2021 08:08:33 +0000 (03:08 -0500)
commit2855f98265dc579bd2becb79ce0156d08e0df813
treec2000339d633bed93401a646168acd6cc94d0afe
parentc3bb9a20834ffe72d3031afe460ff03d3b3b6e90
KVM: x86/mmu: Expand on the comment in kvm_vcpu_ad_need_write_protect()

Expand the comment about need to use write-protection for nested EPT
when PML is enabled to clarify that the tagging is a nop when PML is
_not_ enabled.  Without the clarification, omitting the PML check looks
wrong at first^Wfifth glance.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210213005015.1651772-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/mmu/mmu_internal.h