diff -r 9a0ed35421da -r ad5960696d68 xen/arch/x86/hvm/nestedhvm.c
--- a/xen/arch/x86/hvm/nestedhvm.c
+++ b/xen/arch/x86/hvm/nestedhvm.c
@@ -61,6 +61,7 @@ nestedhvm_vcpu_reset(struct vcpu *v)
     nv->nv_vvmcxaddr = VMCX_EADDR;
     nv->nv_flushp2m = 0;
     nv->nv_p2m = NULL;
+    memset(&nv->nv_n2asid, 0, sizeof(struct hvm_vcpu_asid));
 
     if ( hvm_funcs.nhvm_vcpu_reset )
         hvm_funcs.nhvm_vcpu_reset(v);