From f77ac507f893fc00c1b9ea0076f3c9e664b0f9ab Mon Sep 17 00:00:00 2001
From: Jesse Larrew <jesse.larrew@amd.com>
Date: Fri, 13 Mar 2015 11:03:39 -0500
Subject: [PATCH] x86/mce: Use safe MSR accesses for AMD quirk

Certain MSRs are only relevant to a kernel in host mode, and kvm had
chosen not to implement these MSRs at all for guests. If a guest kernel
ever tried to access these MSRs, the result was a general protection
fault.

KVM will be separately patched to return 0 when these MSRs are read,
and this patch ensures that MSR accesses are tolerant of exceptions.

Signed-off-by: Jesse Larrew <jesse.larrew@amd.com>
[ Drop {} braces around loop ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Joel Schopp <joel.schopp@amd.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac@vger.kernel.org
Link: http://lkml.kernel.org/r/1426262619-5016-1-git-send-email-jesse.larrew@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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