diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index a8a6246835831..0c0f47ec63447 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -249,7 +249,12 @@ static inline unsigned long kvm_s390_get_gfn_end(struct kvm_memslots *slots)
 
 static inline u32 kvm_s390_get_gisa_desc(struct kvm *kvm)
 {
-	u32 gd = virt_to_phys(kvm->arch.gisa_int.origin);
+	u32 gd;
+
+	if (!kvm->arch.gisa_int.origin)
+		return 0;
+
+	gd = virt_to_phys(kvm->arch.gisa_int.origin);
 
 	if (gd && sclp.has_gisaf)
 		gd |= GISA_FORMAT1;