From 9cf4f298e29abba25c16679fe7be70898223167e Mon Sep 17 00:00:00 2001
From: Glauber Costa <gcosta@redhat.com>
Date: Tue, 27 May 2008 18:22:54 -0700
Subject: [PATCH] x86: use stack_start in x86_64

call x86_64's init_rsp stack_start, just as i386 does.
Put a zeroed stack segment for consistency. With this,
we can eliminate one ugly ifdef in smpboot.c.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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