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Subject[PATCH 3/6] KVM: AMD SVM: Add missing tlb flushes to the guest mmu
Add a couple of missing mmu flushes.  The Intel tlb is too coarse to be
affected, but they are necessary for AMD.

Signed-off-by: Yaniv Kamay <>
Signed-off-by: Avi Kivity <>

Index: linux-2.6/drivers/kvm/mmu.c
--- linux-2.6.orig/drivers/kvm/mmu.c
+++ linux-2.6/drivers/kvm/mmu.c
@@ -324,6 +324,7 @@ static void nonpaging_flush(struct kvm_v
if (is_paging(vcpu))
root |= (vcpu->cr3 & (CR3_PCD_MASK | CR3_WPT_MASK));
kvm_arch_ops->set_cr3(vcpu, root);
+ kvm_arch_ops->flush_tlb(vcpu);

static gpa_t nonpaging_gva_to_gpa(struct kvm_vcpu *vcpu, gva_t vaddr)
@@ -407,6 +408,7 @@ static void kvm_mmu_flush_tlb(struct kvm
release_pt_page_64(vcpu, page->page_hpa, 1);
+ kvm_arch_ops->flush_tlb(vcpu);

static void paging_new_cr3(struct kvm_vcpu *vcpu)
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