From: H. Peter Anvin <hpa@linux.intel.com>
Date: Wed, 16 May 2012 20:22:41 +0000 (-0700)
Subject: x86, realmode: Mask out EFER.LMA when saving trampoline EFER
X-Git-Tag: v3.5-rc1~45^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=796038799a72adb279d785c9154df6eeb98b6e8d;p=pandora-kernel.git

x86, realmode: Mask out EFER.LMA when saving trampoline EFER

Some AMD processors apparently #GP(0) if EFER.LMA is set in WRMSR,
rather than ignoring it.  Thus, we need to mask it out.

Reported-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Borislav Petkov <bp@alien8.de>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-24-git-send-email-jarkko.sakkinen@intel.com
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