Commit 171d595d authored Aug 27, 2008 by Avi Kivity

KVM: MMU: Flush tlbs after clearing write permission when accessing dirty log



Otherwise, the cpu may allow writes to the tracked pages, and we lose
some display bits or fail to migrate correctly.

Signed-off-by: Avi Kivity <avi@qumranet.com>

parent 2245a28f

arch/x86/kvm/mmu.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2111,6 +2111,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
		if (pt[i] & PT_WRITABLE_MASK)
		pt[i] &= ~PT_WRITABLE_MASK;
		}
		kvm_flush_remote_tlbs(kvm);
		spin_unlock(&kvm->mmu_lock);
		}