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KVM: x86/mmu: Use MMU's role to detect EFER.NX in guest page walk

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Use the NX bit from the MMU's role instead of the MMU itself so that the
redundant, dedicated "nx" flag can be dropped.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-36-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2021-06-22 10:57:20 -07:00
committed by Paolo Bonzini
parent b67a93a87e
commit cd628f0f1e
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/mmu/paging_tmpl.h
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@@ -471,7 +471,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
error:
errcode |= write_fault | user_fault;
if (fetch_fault && (mmu->nx || is_cr4_smep(mmu)))
if (fetch_fault && (is_efer_nx(mmu) || is_cr4_smep(mmu)))
errcode |= PFERR_FETCH_MASK;
walker->fault.vector = PF_VECTOR;