diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index a62dba9f2310..bfd262371fff 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -503,6 +503,8 @@ void __init early_init_fdt_scan_reserved_mem(void)
 	if (!initial_boot_params)
 		return;
 
+	memblock_memsize_detect_hole();
+
 	fdt_scan_reserved_mem();
 	fdt_reserve_elfcorehdr();
 
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 4e3706832fcf..e2b3a75f8ac7 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -596,9 +596,11 @@ static inline void memtest_report_meminfo(struct seq_file *m) { }
 #ifdef CONFIG_MEMBLOCK_MEMSIZE
 extern void __init_memblock memblock_memsize_record(const char *name,
 		phys_addr_t base, phys_addr_t size, bool nomap, bool reusable);
+extern void __init memblock_memsize_detect_hole(void);
 #else
 static inline void __init_memblock memblock_memsize_record(const char *name,
 		phys_addr_t base, phys_addr_t size, bool nomap, bool reusable) { }
+static inline void __init memblock_memsize_detect_hole(void) { }
 #endif
 
 #endif /* _LINUX_MEMBLOCK_H */
diff --git a/mm/memblock.c b/mm/memblock.c
index 4f27c3f5bd16..b7b00f205fa6 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -2093,6 +2093,50 @@ void __init_memblock memblock_memsize_record(const char *name, phys_addr_t base,
 	memblock_dbg("%s %pa..%pa nomap:%d reusable:%d\n",
 		     __func__, &base, &end, nomap, reusable);
 }
+
+void __init memblock_memsize_detect_hole(void)
+{
+	phys_addr_t base, end;
+	phys_addr_t prev_end, hole_sz;
+	int idx;
+	struct memblock_region *rgn;
+	int memblock_cnt = (int)memblock.memory.cnt;
+
+	/* assume that the hole size is less than 1 GB */
+	for_each_memblock_type(idx, (&memblock.memory), rgn) {
+		prev_end = (idx == 0) ? round_down(rgn->base, SZ_1G) : end;
+		base = rgn->base;
+		end = rgn->base + rgn->size;
+
+		/* only for the last region, check a hole after the region */
+		if (idx + 1 == memblock_cnt) {
+			hole_sz = round_up(end, SZ_1G) - end;
+			if (hole_sz)
+				memblock_memsize_record(NULL, end, hole_sz,
+							true, false);
+		}
+
+		/* for each region, check a hole prior to the region */
+		hole_sz = base - prev_end;
+		if (!hole_sz)
+			continue;
+		if (hole_sz < SZ_1G) {
+			memblock_memsize_record(NULL, prev_end, hole_sz, true,
+						false);
+		} else {
+			phys_addr_t hole_sz1, hole_sz2;
+
+			hole_sz1 = round_up(prev_end, SZ_1G) - prev_end;
+			if (hole_sz1)
+				memblock_memsize_record(NULL, prev_end,
+							hole_sz1, true, false);
+			hole_sz2 = base % SZ_1G;
+			if (hole_sz2)
+				memblock_memsize_record(NULL, base - hole_sz2,
+							hole_sz2, true, false);
+		}
+	}
+}
 #endif /* MEMBLOCK_MEMSIZE */
 
 static void __init free_memmap(unsigned long start_pfn, unsigned long end_pfn)