KVM: MMU: fix apf prefault if nested guest is enabled
If apf is generated in L2 guest and is completed in L1 guest, it will
prefault this apf in L1 guest's mmu context.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9b875ff..c673e72 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6168,7 +6168,8 @@
{
int r;
- if (!vcpu->arch.mmu.direct_map || is_error_page(work->page))
+ if (!vcpu->arch.mmu.direct_map || !work->arch.direct_map ||
+ is_error_page(work->page))
return;
r = kvm_mmu_reload(vcpu);