diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c
index 889a83720c0d..d0c1236f0698 100644
--- a/ndctl/lib/libndctl.c
+++ b/ndctl/lib/libndctl.c
@@ -150,6 +150,7 @@ struct ndctl_region {
 	struct kmod_module *module;
 	struct ndctl_bus *bus;
 	int id, num_mappings, nstype, range_index, ro;
+	unsigned long align;
 	int mappings_init;
 	int namespaces_init;
 	int btts_init;
@@ -1109,6 +1110,44 @@ NDCTL_EXPORT int ndctl_region_set_ro(struct ndctl_region *region, int ro)
 	return ro;
 }
 
+NDCTL_EXPORT unsigned long ndctl_region_get_align(struct ndctl_region *region)
+{
+	return region->align;
+}
+
+/**
+ * ndctl_region_set_align() - Align namespace dpa allocations to @align
+ * @region: region to modify
+ * @align: alignment that must be a power-of-2 and >= the platform minimum
+ *
+ * WARNING: setting the region align value to anything less than the
+ * kernel default (16M) may result in namespaces that are not cross-arch
+ * (PowerPC) compatible. The minimum alignment for raw mode namespaces
+ * is PAGE_SIZE.
+ */
+NDCTL_EXPORT int ndctl_region_set_align(struct ndctl_region *region,
+		unsigned long align)
+{
+	struct ndctl_ctx *ctx = ndctl_region_get_ctx(region);
+	char *path = region->region_buf;
+	int len = region->buf_len, rc;
+	char buf[SYSFS_ATTR_SIZE];
+
+	if (snprintf(path, len, "%s/align", region->region_path) >= len) {
+		err(ctx, "%s: buffer too small!\n",
+				ndctl_region_get_devname(region));
+		return -ENXIO;
+	}
+
+	sprintf(buf, "%#lx\n", align);
+	rc = sysfs_write_attr(ctx, path, buf);
+	if (rc < 0)
+		return rc;
+
+	region->align = align;
+	return 0;
+}
+
 NDCTL_EXPORT unsigned long long ndctl_region_get_resource(struct ndctl_region *region)
 {
 	struct ndctl_ctx *ctx = ndctl_region_get_ctx(region);
@@ -2158,6 +2197,12 @@ static void *add_region(void *parent, int id, const char *region_base)
 	else
 		region->target_node = -1;
 
+	sprintf(path, "%s/align", region_base);
+	if (sysfs_read_attr(ctx, path, buf) == 0)
+		region->align = strtoul(buf, NULL, 0);
+	else
+		region->align = ULONG_MAX;
+
 	if (region_set_type(region, path) < 0)
 		goto err_read;
 
diff --git a/ndctl/lib/libndctl.sym b/ndctl/lib/libndctl.sym
index bf049af1393a..ac575a23d035 100644
--- a/ndctl/lib/libndctl.sym
+++ b/ndctl/lib/libndctl.sym
@@ -428,4 +428,6 @@ LIBNDCTL_23 {
 	ndctl_namespace_is_configuration_idle;
 	ndctl_namespace_get_target_node;
 	ndctl_region_get_target_node;
+	ndctl_region_get_align;
+	ndctl_region_set_align;
 } LIBNDCTL_22;
diff --git a/ndctl/libndctl.h b/ndctl/libndctl.h
index 208240b20aee..076c34583b7d 100644
--- a/ndctl/libndctl.h
+++ b/ndctl/libndctl.h
@@ -372,6 +372,8 @@ struct ndctl_namespace *ndctl_region_get_namespace_seed(
 		struct ndctl_region *region);
 int ndctl_region_get_ro(struct ndctl_region *region);
 int ndctl_region_set_ro(struct ndctl_region *region, int ro);
+unsigned long ndctl_region_get_align(struct ndctl_region *region);
+int ndctl_region_set_align(struct ndctl_region *region, unsigned long align);
 unsigned long long ndctl_region_get_resource(struct ndctl_region *region);
 struct ndctl_btt *ndctl_region_get_btt_seed(struct ndctl_region *region);
 struct ndctl_pfn *ndctl_region_get_pfn_seed(struct ndctl_region *region);
diff --git a/ndctl/list.c b/ndctl/list.c
index 7d7835247005..aedccfe8fe75 100644
--- a/ndctl/list.c
+++ b/ndctl/list.c
@@ -78,7 +78,7 @@ static struct json_object *region_to_json(struct ndctl_region *region,
 	struct ndctl_interleave_set *iset;
 	struct ndctl_mapping *mapping;
 	unsigned int bb_count = 0;
-	unsigned long long extent;
+	unsigned long long extent, align;
 	enum ndctl_persistence_domain pd;
 	int numa, target;
 
@@ -95,6 +95,14 @@ static struct json_object *region_to_json(struct ndctl_region *region,
 		goto err;
 	json_object_object_add(jregion, "size", jobj);
 
+	align = ndctl_region_get_align(region);
+	if (align < ULLONG_MAX) {
+		jobj = util_json_object_size(align, flags);
+		if (!jobj)
+			goto err;
+		json_object_object_add(jregion, "align", jobj);
+	}
+
 	jobj = util_json_object_size(ndctl_region_get_available_size(region),
 			flags);
 	if (!jobj)
diff --git a/test/blk_namespaces.c b/test/blk_namespaces.c
index b587ab93fbb8..437fcad0a8f5 100644
--- a/test/blk_namespaces.c
+++ b/test/blk_namespaces.c
@@ -54,6 +54,7 @@ static struct ndctl_namespace *create_blk_namespace(int region_fraction,
 	unsigned long long size;
 	uuid_t uuid;
 
+	ndctl_region_set_align(region, sysconf(_SC_PAGESIZE));
 	ndctl_namespace_foreach(region, ndns)
 		if (ndctl_namespace_get_size(ndns) == 0) {
 			seed_ns = ndns;
diff --git a/test/dpa-alloc.c b/test/dpa-alloc.c
index 9a9c6b64c504..b757b9ad9c2c 100644
--- a/test/dpa-alloc.c
+++ b/test/dpa-alloc.c
@@ -58,15 +58,21 @@ static int do_test(struct ndctl_ctx *ctx, struct ndctl_test *test)
 	bus = ndctl_bus_get_by_provider(ctx, NFIT_PROVIDER1);
 	if (!bus)
 		return -ENXIO;
-	ndctl_region_foreach(bus, region)
+	ndctl_region_foreach(bus, region) {
 		ndctl_region_disable_invalidate(region);
+		ndctl_region_set_align(region, sysconf(_SC_PAGESIZE)
+				* ndctl_region_get_interleave_ways(region));
+	}
 
 	/* init nfit_test.0 */
 	bus = ndctl_bus_get_by_provider(ctx, NFIT_PROVIDER0);
 	if (!bus)
 		return -ENXIO;
-	ndctl_region_foreach(bus, region)
+	ndctl_region_foreach(bus, region) {
 		ndctl_region_disable_invalidate(region);
+		ndctl_region_set_align(region, sysconf(_SC_PAGESIZE)
+				* ndctl_region_get_interleave_ways(region));
+	}
 
 	ndctl_dimm_foreach(bus, dimm) {
 		rc = ndctl_dimm_zero_labels(dimm);
diff --git a/test/dsm-fail.c b/test/dsm-fail.c
index 6e812aec008f..b2c51db4aa3a 100644
--- a/test/dsm-fail.c
+++ b/test/dsm-fail.c
@@ -48,8 +48,11 @@ static int reset_bus(struct ndctl_bus *bus)
 	}
 
 	/* set regions back to their default state */
-	ndctl_region_foreach(bus, region)
+	ndctl_region_foreach(bus, region) {
 		ndctl_region_enable(region);
+		ndctl_region_set_align(region, sysconf(_SC_PAGESIZE)
+				* ndctl_region_get_interleave_ways(region));
+	}
 	return 0;
 }
 
diff --git a/test/libndctl.c b/test/libndctl.c
index 02bb9ccaa465..9ad8f87b92dc 100644
--- a/test/libndctl.c
+++ b/test/libndctl.c
@@ -2622,9 +2622,15 @@ static int do_test0(struct ndctl_ctx *ctx, struct ndctl_test *test)
 		}
 	}
 
-	/* set regions back to their default state */
-	ndctl_region_foreach(bus, region)
+	/*
+	 * Enable regions and adjust the space-align to drop the default
+	 * alignment constraints
+	 */
+	ndctl_region_foreach(bus, region) {
 		ndctl_region_enable(region);
+		ndctl_region_set_align(region, sysconf(_SC_PAGESIZE)
+				* ndctl_region_get_interleave_ways(region));
+	}
 
 	/* pfn and dax tests require vmalloc-enabled nfit_test */
 	if (ndctl_test_attempt(test, KERNEL_VERSION(4, 8, 0))) {
diff --git a/test/parent-uuid.c b/test/parent-uuid.c
index 3a63f7244e21..f41ca2c7bd75 100644
--- a/test/parent-uuid.c
+++ b/test/parent-uuid.c
@@ -61,6 +61,7 @@ static struct ndctl_namespace *create_blk_namespace(int region_fraction,
 	struct ndctl_namespace *ndns, *seed_ns = NULL;
 	unsigned long long size;
 
+	ndctl_region_set_align(region, sysconf(_SC_PAGESIZE));
 	ndctl_namespace_foreach(region, ndns)
 		if (ndctl_namespace_get_size(ndns) == 0) {
 			seed_ns = ndns;
