diff --git a/src/arch/arm64/armv8/mmu.c b/src/arch/arm64/armv8/mmu.c
index 8fde41f7f7..84b9935a93 100644
--- a/src/arch/arm64/armv8/mmu.c
+++ b/src/arch/arm64/armv8/mmu.c
@@ -67,6 +67,7 @@ static uint64_t get_block_attr(unsigned long tag)
 	attr |= BLOCK_ACCESS;
 
 	if (tag & MA_MEM) {
+		attr |= BLOCK_SH_INNER_SHAREABLE;
 		if (tag & MA_MEM_NC)
 			attr |= BLOCK_INDEX_MEM_NORMAL_NC << BLOCK_INDEX_SHIFT;
 		else
diff --git a/src/arch/arm64/include/armv8/arch/mmu.h b/src/arch/arm64/include/armv8/arch/mmu.h
index a030b1bf73..564d6afed4 100644
--- a/src/arch/arm64/include/armv8/arch/mmu.h
+++ b/src/arch/arm64/include/armv8/arch/mmu.h
@@ -65,6 +65,12 @@
 
 #define BLOCK_ACCESS               (1 << 10)
 
+#define BLOCK_SH_SHIFT                 (8)
+#define BLOCK_SH_NON_SHAREABLE         (0 << BLOCK_SH_SHIFT)
+#define BLOCK_SH_UNPREDICTABLE         (1 << BLOCK_SH_SHIFT)
+#define BLOCK_SH_OUTER_SHAREABLE       (2 << BLOCK_SH_SHIFT)
+#define BLOCK_SH_INNER_SHAREABLE       (3 << BLOCK_SH_SHIFT)
+
 /* XLAT Table Init Attributes */
 
 #define VA_START                   0x0