Commit 91546356 authored Jun 30, 2010 by Xiao Guangrong Committed by Marcelo Tosatti Jul 12, 2010

KVM: MMU: flush remote tlbs when overwriting spte with different pfn



After remove a rmap, we should flush all vcpu's tlb

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

parent da38f438

arch/x86/kvm/mmu.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1879,6 +1879,8 @@ static void mmu_set_spte(struct kvm_vcpu vcpu, u64 sptep,
		pgprintk("hfn old %lx new %lx\n",
		spte_to_pfn(*sptep), pfn);
		rmap_remove(vcpu->kvm, sptep);
		__set_spte(sptep, shadow_trap_nonpresent_pte);
		kvm_flush_remote_tlbs(vcpu->kvm);
		} else
		was_rmapped = 1;
		}