diff --git a/docs/porting-guide.rst b/docs/porting-guide.rst
index 98aa76d..d06d153 100644
--- a/docs/porting-guide.rst
+++ b/docs/porting-guide.rst
@@ -1043,6 +1043,17 @@
 platform.
 For more details see section 3.3 Table 6 of `DRTM`_ specification.
 
+Function : plat_drtm_get_dlme_img_auth_features()
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+    Argument : void
+    Return   : uint64_t
+
+This function returns the DLME image authentication features.
+For more details see section 3.3 Table 6 of `DRTM`_ specification.
+
 Function : plat_drtm_validate_ns_region()
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/include/plat/common/plat_drtm.h b/include/plat/common/plat_drtm.h
index 4f69210..0d6a818 100644
--- a/include/plat/common/plat_drtm.h
+++ b/include/plat/common/plat_drtm.h
@@ -60,7 +60,7 @@
 uint64_t plat_drtm_get_imp_def_dlme_region_size(void);
 uint64_t plat_drtm_get_tcb_hash_features(void);
 uint64_t plat_drtm_get_acpi_tables_region_size(void);
-
+uint64_t plat_drtm_get_dlme_img_auth_features(void);
 
 /* DRTM error handling functions */
 int plat_set_drtm_error(uint64_t error_code);