diff options
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | drivers/kvm/mmu.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 7761089ef3b..2fc25281392 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -383,6 +383,7 @@ static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn) BUG_ON(!(*spte & PT_WRITABLE_MASK)); rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte); rmap_remove(vcpu, spte); + kvm_arch_ops->tlb_flush(vcpu); *spte &= ~(u64)PT_WRITABLE_MASK; } } @@ -594,6 +595,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu, rmap_remove(vcpu, &pt[i]); pt[i] = 0; } + kvm_arch_ops->tlb_flush(vcpu); return; } @@ -927,7 +929,10 @@ static inline void set_pte_common(struct kvm_vcpu *vcpu, pgprintk("%s: found shadow page for %lx, marking ro\n", __FUNCTION__, gfn); access_bits &= ~PT_WRITABLE_MASK; - *shadow_pte &= ~PT_WRITABLE_MASK; + if (is_writeble_pte(*shadow_pte)) { + *shadow_pte &= ~PT_WRITABLE_MASK; + kvm_arch_ops->tlb_flush(vcpu); + } } } |