diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index a26295fa1f8d..49a0309ab794 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -391,6 +391,14 @@ static phys_addr_t pgd_pgtable_alloc(int shift)
 	return pa;
 }
 
+void create_pgtable_mapping(phys_addr_t start, phys_addr_t end)
+{
+	unsigned long virt = (unsigned long)phys_to_virt(start);
+
+	__create_pgd_mapping(init_mm.pgd, start, virt, end - start,
+				PAGE_KERNEL, NULL, 0);
+}
+
 /*
  * This function can only be used to modify existing table entries,
  * without allocating new levels of table. Note that this permits the
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index ead74b4b6725..4fd77c758c27 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -145,7 +145,7 @@ void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start,
 				phys_addr_t *out_end);
 
 void __memblock_free_late(phys_addr_t base, phys_addr_t size);
-
+void create_pgtable_mapping(phys_addr_t start, phys_addr_t end);
 /**
  * for_each_mem_range - iterate through memblock areas from type_a and not
  * included in type_b. Or just type_a if type_b is NULL.