diff --git a/include/lib/aarch64/xlat_tables.h b/include/lib/aarch64/xlat_tables.h
index 5df655b..8e0adc7 100644
--- a/include/lib/aarch64/xlat_tables.h
+++ b/include/lib/aarch64/xlat_tables.h
@@ -55,13 +55,14 @@
  * Structure for specifying a single region of memory.
  */
 typedef struct mmap_region {
-	unsigned long	base;
+	unsigned long	base_pa;
+	unsigned long	base_va;
 	unsigned long	size;
 	mmap_attr_t	attr;
 } mmap_region_t;
 
-void mmap_add_region(unsigned long base, unsigned long size,
-			unsigned attr);
+void mmap_add_region(unsigned long base_pa, unsigned long base_va,
+				unsigned long size, unsigned attr);
 void mmap_add(const mmap_region_t *mm);
 
 void init_xlat_tables(void);