From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] Add MCE support to KVM
Date: Mon, 20 Apr 2009 12:04:21 +0200
Message-ID: <20090420100421.GX14687@one.firstfloor.org>
References: <1239332455.6384.108.camel@yhuang-dev.sh.intel.com> <49E08762.1010206@redhat.com> <1239590499.6384.4016.camel@yhuang-dev.sh.intel.com> <49E337D7.5050502@redhat.com> <49EA515C.9000507@codemonkey.ws> <49EAE1F6.9050205@redhat.com> <49EC29D1.8040407@redhat.com> <49EC3198.9070902@redhat.com> <49EC3987.2040001@redhat.com> <49EC3AD6.3090905@redhat.com>
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Cc: Gerd Hoffmann <kraxel@redhat.com>,
	Anthony Liguori <anthony@codemonkey.ws>,
	Huang Ying <ying.huang@intel.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Andi Kleen <andi@firstfloor.org>
To: Avi Kivity <avi@redhat.com>
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> It depends if the MSR may be considered global, or is required to be 
> per-cpu.  Need to refresh my memory on this, but I remember reading this 

Machine Check MSRs need to be per CPU. The latest kernels have some support
for "shared banks" (between CPUs) but it's better to not have it and
older OS don't like it.

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.