KVM: x86/mmu: Get CR0.WP from MMU, not vCPU, in shadow page fault

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Use the current MMU instead of vCPU state to query CR0.WP when handling
a page fault.  In the nested NPT case, the current CR0.WP reflects L2,
whereas the page fault is shadowing L1's NPT.  Practically speaking, this
is a nop a NPT walks are always user faults, but fix it up for
consistency.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-53-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2021-06-22 10:57:37 -07:00 • committed by Paolo Bonzini

parent f82fdaf536

commit fdaa293598

2 changed files with 2 additions and 8 deletions

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5

arch/x86/kvm/mmu.h

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5

arch/x86/kvm/mmu/paging_tmpl.h

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