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Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
-rw-r--r--arch/x86/kvm/svm/nested.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 9f0e7ed672b2..f17d8c9050c0 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -98,6 +98,12 @@ static void nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
WARN_ON(mmu_is_nested(vcpu));
vcpu->arch.mmu = &vcpu->arch.guest_mmu;
+
+ /*
+ * The NPT format depends on L1's CR4 and EFER, which is in vmcb01. Note,
+ * when called via KVM_SET_NESTED_STATE, that state may _not_ match current
+ * vCPU state. CR0.WP is explicitly ignored, while CR0.PG is required.
+ */
kvm_init_shadow_npt_mmu(vcpu, X86_CR0_PG, svm->vmcb01.ptr->save.cr4,
svm->vmcb01.ptr->save.efer,
svm->nested.ctl.nested_cr3);