diff --git a/arch/arm64/kernel/include/arch-memory.h b/arch/arm64/kernel/include/arch-memory.h
index 24abace1..2050c198 100644
--- a/arch/arm64/kernel/include/arch-memory.h
+++ b/arch/arm64/kernel/include/arch-memory.h
@@ -312,6 +312,8 @@ enum ihk_mc_pt_attribute {
 	PTATTR_FOR_USER   = UL(1) << (PHYS_MASK_SHIFT - 1),
 	/* WriteCombine */
 	PTATTR_WRITE_COMBINED = PTE_ATTRINDX(2),
+	/* converted flag */
+	ARCH_PTATTR_FLIPPED = PTE_PROT_NONE,
 };
 extern enum ihk_mc_pt_attribute attr_mask;
 
diff --git a/arch/arm64/kernel/memory.c b/arch/arm64/kernel/memory.c
index de74c7c6..45e2bab8 100644
--- a/arch/arm64/kernel/memory.c
+++ b/arch/arm64/kernel/memory.c
@@ -917,6 +917,7 @@ enum ihk_mc_pt_attribute attr_mask =
 	| PTATTR_FILEOFF
 	| PTATTR_LARGEPAGE
 	| PTATTR_NO_EXECUTE
+	| ARCH_PTATTR_FLIPPED
 	;
 #define ATTR_MASK attr_mask
 
@@ -967,14 +968,17 @@ static unsigned long attr_to_lattr_not_flip(enum ihk_mc_pt_attribute attr, int l
 	return 0;
 }
 
-static unsigned long attr_to_l4attr(enum ihk_mc_pt_attribute attr){ return attr_to_l4attr_not_flip(attr ^ attr_flip_bits); }
-static unsigned long attr_to_l3attr(enum ihk_mc_pt_attribute attr){ return attr_to_l3attr_not_flip(attr ^ attr_flip_bits); }
-static unsigned long attr_to_l2attr(enum ihk_mc_pt_attribute attr){ return attr_to_l2attr_not_flip(attr ^ attr_flip_bits); }
-static unsigned long attr_to_l1attr(enum ihk_mc_pt_attribute attr){ return attr_to_l1attr_not_flip(attr ^ attr_flip_bits); }
 static unsigned long attr_to_lattr(enum ihk_mc_pt_attribute attr, int level)
 {
-	return attr_to_lattr_not_flip(attr ^ attr_flip_bits, level);
+	if (!(attr & ARCH_PTATTR_FLIPPED)) {
+		attr = (attr ^ attr_flip_bits) | ARCH_PTATTR_FLIPPED;
+	}
+	return attr_to_lattr_not_flip(attr, level);
 }
+static unsigned long attr_to_l4attr(enum ihk_mc_pt_attribute attr){ return attr_to_lattr(attr, 4); }
+static unsigned long attr_to_l3attr(enum ihk_mc_pt_attribute attr){ return attr_to_lattr(attr, 3); }
+static unsigned long attr_to_l2attr(enum ihk_mc_pt_attribute attr){ return attr_to_lattr(attr, 2); }
+static unsigned long attr_to_l1attr(enum ihk_mc_pt_attribute attr){ return attr_to_lattr(attr, 1); }
 
 static int __set_pt_page(struct page_table *pt, void *virt, unsigned long phys,
                          enum ihk_mc_pt_attribute attr)