diff --git a/xen/common/memory.c b/xen/common/memory.c
index c2797ba66c..09549abec5 100644
--- a/xen/common/memory.c
+++ b/xen/common/memory.c
@@ -770,9 +770,8 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg)
     return rc;
 }
 
-static int xenmem_add_to_physmap(struct domain *d,
-                                 struct xen_add_to_physmap *xatp,
-                                 unsigned int start)
+int xenmem_add_to_physmap(struct domain *d, struct xen_add_to_physmap *xatp,
+                          unsigned int start)
 {
     unsigned int done = 0;
     long rc = 0;
diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
index e813c07b22..0e0e5112c6 100644
--- a/xen/include/xen/mm.h
+++ b/xen/include/xen/mm.h
@@ -579,6 +579,9 @@ int xenmem_add_to_physmap_one(struct domain *d, unsigned int space,
                               union xen_add_to_physmap_batch_extra extra,
                               unsigned long idx, gfn_t gfn);
 
+int xenmem_add_to_physmap(struct domain *d, struct xen_add_to_physmap *xatp,
+                          unsigned int start);
+
 /* Return 0 on success, or negative on error. */
 int __must_check guest_remove_page(struct domain *d, unsigned long gmfn);
 int __must_check steal_page(struct domain *d, struct page_info *page,