x86: update mptable, fix

need to call early_reserve_e820() to preallocate mptable for 32bit

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index be1a99003677ab36cf4f22bd1a8253137de5eec4..4fa9f6c4542be3464747b800e3119798430ffed5 100644 (file)
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -749,6 +749,8 @@ void __init setup_arch(char **cmdline_p)
         */
        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)) {