diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index be1a990..4fa9f6c 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -749,6 +749,8 @@
 	 */
 	max_pfn = e820_end_of_ram();
 
+	/* preallocate 4k for mptable mpc */
+	early_reserve_e820_mpc_new();
 	/* update e820 for memory not covered by WB MTRRs */
 	mtrr_bp_init();
 	if (mtrr_trim_uncached_memory(max_pfn)) {