1 files changed, 3 insertions, 1 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a24bae0a83a2..30723a4122cd 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -625,7 +625,9 @@ int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
         if ((cr0 ^ old_cr0) & update_bits)
                 kvm_mmu_reset_context(vcpu);
 
-        if ((cr0 ^ old_cr0) & X86_CR0_CD)
+        if (((cr0 ^ old_cr0) & X86_CR0_CD) &&
+            kvm_arch_has_noncoherent_dma(vcpu->kvm) &&
+            !kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_CD_NW_CLEARED))
                 kvm_zap_gfn_range(vcpu->kvm, 0, ~0ULL);
 
         return 0;