KVM: x86/mmu: Tweak auditing WARN for A/D bits to !PRESENT (was MMIO)

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Tweak the MMU_WARN that guards against weirdness when querying A/D status
to fire on a !MMU_PRESENT SPTE, as opposed to a MMIO SPTE.  Attempting to
query A/D status on any kind of !MMU_PRESENT SPTE, MMIO or otherwise,
indicates a KVM bug.  Case in point, several now-fixed bugs were
identified by enabling this new WARN.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210225204749.1512652-22-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2021-02-25 12:47:46 -08:00 • committed by Paolo Bonzini

parent edea7c4fc2

commit 8f366ae6d8

1 changed files with 9 additions and 9 deletions

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arch/x86/kvm/mmu/spte.h

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