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-rw-r--r--arch/x86/kvm/svm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index d1106cddab0..8233b86c778 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -879,6 +879,10 @@ set:
static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{
unsigned long host_cr4_mce = read_cr4() & X86_CR4_MCE;
+ unsigned long old_cr4 = to_svm(vcpu)->vmcb->save.cr4;
+
+ if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE))
+ force_new_asid(vcpu);
vcpu->arch.cr4 = cr4;
if (!npt_enabled)