diff --git a/sys/vm/phys_pager.c b/sys/vm/phys_pager.c
index 1fbc87bb95df..19a8b97a3d56 100644
--- a/sys/vm/phys_pager.c
+++ b/sys/vm/phys_pager.c
@@ -51,6 +51,20 @@ static struct pagerlst phys_pager_object_list;
 /* protect access to phys_pager_object_list */
 static struct mtx phys_pager_mtx;
 
+static int default_phys_pager_getpages(vm_object_t object, vm_page_t *m,
+    int count, int *rbehind, int *rahead);
+static int default_phys_pager_populate(vm_object_t object, vm_pindex_t pidx,
+    int fault_type, vm_prot_t max_prot, vm_pindex_t *first, vm_pindex_t *last);
+static boolean_t default_phys_pager_haspage(vm_object_t object,
+    vm_pindex_t pindex, int *before, int *after);
+struct phys_pager_ops default_phys_pg_ops = {
+	.phys_pg_getpages = default_phys_pager_getpages,
+	.phys_pg_populate = default_phys_pager_populate,
+	.phys_pg_haspage = default_phys_pager_haspage,
+	.phys_pg_ctor = NULL,
+	.phys_pg_dtor = NULL,
+};
+
 static void
 phys_pager_init(void)
 {
@@ -59,12 +73,13 @@ phys_pager_init(void)
 	mtx_init(&phys_pager_mtx, "phys_pager list", NULL, MTX_DEF);
 }
 
-static vm_object_t
-phys_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
-    vm_ooffset_t foff, struct ucred *cred)
+vm_object_t
+phys_pager_allocate(void *handle, struct phys_pager_ops *ops, void *data,
+    vm_ooffset_t size, vm_prot_t prot, vm_ooffset_t foff, struct ucred *cred)
 {
 	vm_object_t object, object1;
 	vm_pindex_t pindex;
+	bool init;
 
 	/*
 	 * Offset should be page aligned.
@@ -73,6 +88,7 @@ phys_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
 		return (NULL);
 
 	pindex = OFF_TO_IDX(foff + PAGE_MASK + size);
+	init = true;
 
 	if (handle != NULL) {
 		mtx_lock(&phys_pager_mtx);
@@ -97,11 +113,15 @@ phys_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
 				 */
 				if (pindex > object->size)
 					object->size = pindex;
+				init = false;
 			} else {
 				object = object1;
 				object1 = NULL;
 				object->handle = handle;
-				vm_object_set_flag(object, OBJ_POPULATE);
+				object->un_pager.phys.ops = ops;
+				object->un_pager.phys.data_ptr = data;
+				if (ops->phys_pg_populate != NULL)
+					vm_object_set_flag(object, OBJ_POPULATE);
 				TAILQ_INSERT_TAIL(&phys_pager_object_list,
 				    object, pager_object_list);
 			}
@@ -113,12 +133,25 @@ phys_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
 		vm_object_deallocate(object1);
 	} else {
 		object = vm_object_allocate(OBJT_PHYS, pindex);
-		vm_object_set_flag(object, OBJ_POPULATE);
+		object->un_pager.phys.ops = ops;
+		object->un_pager.phys.data_ptr = data;
+		if (ops->phys_pg_populate != NULL)
+			vm_object_set_flag(object, OBJ_POPULATE);
 	}
+	if (init && ops->phys_pg_ctor != NULL)
+		ops->phys_pg_ctor(object, prot, foff, cred);
 
 	return (object);
 }
 
+static vm_object_t
+phys_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
+    vm_ooffset_t foff, struct ucred *ucred)
+{
+	return (phys_pager_allocate(handle, &default_phys_pg_ops, NULL,
+	    size, prot, foff, ucred));
+}
+
 static void
 phys_pager_dealloc(vm_object_t object)
 {
@@ -130,16 +163,18 @@ phys_pager_dealloc(vm_object_t object)
 		mtx_unlock(&phys_pager_mtx);
 		VM_OBJECT_WLOCK(object);
 	}
-	object->handle = NULL;
 	object->type = OBJT_DEAD;
+	if (object->un_pager.phys.ops->phys_pg_dtor != NULL)
+		object->un_pager.phys.ops->phys_pg_dtor(object);
+	object->handle = NULL;
 }
 
 /*
  * Fill as many pages as vm_fault has allocated for us.
  */
 static int
-phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int *rbehind,
-    int *rahead)
+default_phys_pager_getpages(vm_object_t object, vm_page_t *m, int count,
+    int *rbehind, int *rahead)
 {
 	int i;
 
@@ -161,6 +196,14 @@ phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int *rbehind,
 	return (VM_PAGER_OK);
 }
 
+static int
+phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int *rbehind,
+    int *rahead)
+{
+	return (object->un_pager.phys.ops->phys_pg_getpages(object, m,
+	    count, rbehind, rahead));
+}
+
 /*
  * Implement a pretty aggressive clustered getpages strategy.  Hint that
  * everything in an entire 4MB window should be prefaulted at once.
@@ -185,7 +228,7 @@ SYSCTL_INT(_vm, OID_AUTO, phys_pager_cluster, CTLFLAG_RWTUN,
 #define	PHYSALLOC	16
 
 static int
-phys_pager_populate(vm_object_t object, vm_pindex_t pidx,
+default_phys_pager_populate(vm_object_t object, vm_pindex_t pidx,
     int fault_type __unused, vm_prot_t max_prot __unused, vm_pindex_t *first,
     vm_pindex_t *last)
 {
@@ -216,6 +259,14 @@ phys_pager_populate(vm_object_t object, vm_pindex_t pidx,
 	return (VM_PAGER_OK);
 }
 
+static int
+phys_pager_populate(vm_object_t object, vm_pindex_t pidx, int fault_type,
+    vm_prot_t max_prot, vm_pindex_t *first, vm_pindex_t *last)
+{
+	return (object->un_pager.phys.ops->phys_pg_populate(object, pidx,
+	    fault_type, max_prot, first, last));
+}
+
 static void
 phys_pager_putpages(vm_object_t object, vm_page_t *m, int count, boolean_t sync,
     int *rtvals)
@@ -225,7 +276,7 @@ phys_pager_putpages(vm_object_t object, vm_page_t *m, int count, boolean_t sync,
 }
 
 static boolean_t
-phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
+default_phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
     int *after)
 {
 	vm_pindex_t base, end;
@@ -239,6 +290,14 @@ phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
 	return (TRUE);
 }
 
+static boolean_t
+phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
+    int *after)
+{
+	return (object->un_pager.phys.ops->phys_pg_haspage(object, pindex,
+	    before, after));
+}
+
 struct pagerops physpagerops = {
 	.pgo_init =	phys_pager_init,
 	.pgo_alloc =	phys_pager_alloc,
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index 187ad63e8f55..35ea9cc45fae 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -286,6 +286,7 @@ vm_object_init(void)
 	kernel_object->flags |= OBJ_COLORED;
 	kernel_object->pg_color = (u_short)atop(VM_MIN_KERNEL_ADDRESS);
 #endif
+	kernel_object->un_pager.phys.ops = &default_phys_pg_ops;
 
 	/*
 	 * The lock portion of struct vm_object must be type stable due
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h
index 007e945daa77..3c589bd4b42e 100644
--- a/sys/vm/vm_object.h
+++ b/sys/vm/vm_object.h
@@ -173,6 +173,17 @@ struct vm_object {
 			struct pctrie swp_blks;
 			vm_ooffset_t writemappings;
 		} swp;
+
+		/*
+		 * Phys pager
+		 */
+		struct {
+			struct phys_pager_ops *ops;
+			union {
+				void *data_ptr;
+				uintptr_t data_val;
+			};
+		} phys;
 	} un_pager;
 	struct ucred *cred;
 	vm_ooffset_t charge;
diff --git a/sys/vm/vm_pager.h b/sys/vm/vm_pager.h
index afd6f556c231..a8f92eac59e3 100644
--- a/sys/vm/vm_pager.h
+++ b/sys/vm/vm_pager.h
@@ -227,5 +227,22 @@ vm_object_t cdev_pager_allocate(void *handle, enum obj_type tp,
 vm_object_t cdev_pager_lookup(void *handle);
 void cdev_pager_free_page(vm_object_t object, vm_page_t m);
 
+struct phys_pager_ops {
+	int (*phys_pg_getpages)(vm_object_t vm_obj, vm_page_t *m, int count,
+	    int *rbehind, int *rahead);
+	int (*phys_pg_populate)(vm_object_t vm_obj, vm_pindex_t pidx,
+	    int fault_type, vm_prot_t max_prot, vm_pindex_t *first,
+	    vm_pindex_t *last);
+	boolean_t (*phys_pg_haspage)(vm_object_t obj,  vm_pindex_t pindex,
+	    int *before, int *after);
+	void (*phys_pg_ctor)(vm_object_t vm_obj, vm_prot_t prot,
+	    vm_ooffset_t foff, struct ucred *cred);
+	void (*phys_pg_dtor)(vm_object_t vm_obj);
+};
+extern struct phys_pager_ops default_phys_pg_ops;
+vm_object_t phys_pager_allocate(void *handle, struct phys_pager_ops *ops,
+    void *data, vm_ooffset_t size, vm_prot_t prot, vm_ooffset_t foff,
+    struct ucred *cred);
+
 #endif				/* _KERNEL */
 #endif				/* _VM_PAGER_ */