KVM: x86/mmu: Print SPTEs on unexpected #VE

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Print the SPTEs that correspond to the faulting GPA on an unexpected EPT
Violation #VE to help the user debug failures, e.g. to pinpoint which SPTE
didn't have SUPPRESS_VE set.

Opportunistically assert that the underlying exit reason was indeed an EPT
Violation, as the CPU has *really* gone off the rails if a #VE occurs due
to a completely unexpected exit reason.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20240518000430.1118488-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2024-05-17 17:04:27 -07:00 • committed by Paolo Bonzini

parent 743f177336

commit bca99c0356

3 changed files with 38 additions and 8 deletions

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1

arch/x86/include/asm/kvm_host.h

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42

arch/x86/kvm/mmu/mmu.c

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5

arch/x86/kvm/vmx/vmx.c

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