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>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index db0fd555a5a..ab100a7e0c4 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2609,6 +2609,7 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn)
         struct kvm_arch_async_pf arch;
         arch.token = (vcpu->arch.apf.id++ << 12) | vcpu->vcpu_id;
         arch.gfn = gfn;
+        arch.direct_map = vcpu->arch.mmu.direct_map;
 
         return kvm_setup_async_pf(vcpu, gva, gfn, &arch);
 }