linux-kernel - [PATCH] x86: update mptable v7

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Message-Id: <200806081953.26877.yhlu.kernel@gmail.com>
Date:	Sun, 8 Jun 2008 19:53:26 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: update mptable v7 - fix

[PATCH] x86: update mptable v7 - fix

need to call early_reserve_e820 to prelocate mptable for 32bit

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

Index: linux-2.6/arch/x86/kernel/setup_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_32.c
+++ linux-2.6/arch/x86/kernel/setup_32.c
@@ -761,6 +761,8 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	max_pfn = e820_end_of_ram();
 
+	/* pre allocte 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)) {
--
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