From: David Woodhouse <dwmw2@infradead.org>
Date: Mon, 28 Jan 2013 17:49:50 +0000 (+0000)
Subject: x86: Require MOVBE feature in cpuid when we use it
X-Git-Tag: v3.9-rc1~168^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b9b6d8c715b23fa119261c32ad360681f4464a9;p=pandora-kernel.git

x86: Require MOVBE feature in cpuid when we use it

Add MOVBE to asm/required-features.h so we check for it during startup
and don't bother checking for it later.

CONFIG_MATOM is used because it corresponds to -march=atom in the
Makefiles.  If the rules get more complicated it may be necessary to
make this an explicit Kconfig option which uses -mmovbe/-mno-movbe to
control the use of this instruction explicitly.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Link: http://lkml.kernel.org/r/1359395390.3529.65.camel@shinybook.infradead.org
[ hpa: added a patch description ]
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---

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