diff --git a/lib/aarch64/misc_helpers.S b/lib/aarch64/misc_helpers.S
index b6f6c9d..cc5c575 100644
--- a/lib/aarch64/misc_helpers.S
+++ b/lib/aarch64/misc_helpers.S
@@ -15,6 +15,7 @@
 	.globl	zero_normalmem
 	.globl	zeromem
 	.globl	memcpy16
+	.globl	gpt_tlbi_by_pa
 
 	.globl	disable_mmu_el1
 	.globl	disable_mmu_el3
@@ -592,3 +593,20 @@
 	b.lo	1b
 	ret
 endfunc fixup_gdt_reloc
+
+/*
+ * TODO: Currently only supports size of 4KB,
+ * support other sizes as well.
+ */
+func gpt_tlbi_by_pa
+#if ENABLE_ASSERTIONS
+	cmp	x1, #PAGE_SIZE_4KB
+	ASM_ASSERT(eq)
+	tst	x0, #(PAGE_SIZE_MASK)
+	ASM_ASSERT(eq)
+#endif
+	lsr	x0, x0, #FOUR_KB_SHIFT	/* 4KB size encoding is zero */
+	sys	#6, c8, c4, #3, x0 	/* TLBI RPAOS, <Xt> */
+	dsb	sy
+	ret
+endfunc gpt_tlbi_by_pa