linux-kernel - [PATCH 05/15] x86: use initial

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Message-Id: <1213021018-14159-6-git-send-email-gcosta@redhat.com>
Date:	Mon,  9 Jun 2008 11:16:48 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de, mingo@...e.hu,
	hugh@...itas.com
Subject: [PATCH 05/15] x86: use initial_code for i386

x86_64 jumps to whatever is written in "initial_code" symbol,
instead of a fixed address. Do it for i386 too. It will allow us
to integrate more of the smp boot code.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/head_32.S |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index b98b338..ffb73a5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -455,7 +455,10 @@ is386:	movl $2,%ecx		# set MP
 	jmp initialize_secondary # all other CPUs call initialize_secondary
 1:
 #endif /* CONFIG_SMP */
-	jmp i386_start_kernel
+	jmp *(initial_code)
+.align 4
+ENTRY(initial_code)
+	.long i386_start_kernel
 
 /*
  * We depend on ET to be correct. This checks for 287/387.
-- 
1.5.4.5

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