linux-kernel - Re: [PATCH] Add MCE support to KVM

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Message-ID: <49E08C2F.4010003@redhat.com>
Date:	Sat, 11 Apr 2009 15:25:19 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Huang Ying <ying.huang@...el.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Add MCE support to KVM

Andi Kleen wrote:
>> Right, but we can allocate the maximum number, no?  it's a fairly small 
>> amount of memory.
>>     
>
> There are 255 banks worst case which need upto 4 (in theory 5) MSRs each
>
>   

That's 8KB, which would normally not be allocated.  But I think we can 
live with it.

Do we actually need to support 255 banks?  Or can we support a smaller 
number transparently?

(IOW: are the banks interchangable?)

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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