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

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Date:	Tue, 21 Apr 2009 19:17:03 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Anthony Liguori <anthony@...emonkey.ws>
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>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH] Add MCE support to KVM

Anthony Liguori wrote:
>>
>> Right now everything in the vcpu is emulated in the kernel.  
>> Everything else is emulated either in the kernel (irqchip) or in 
>> userspace.  This makes things easier to understand, and is more 
>> future friendly if more cpu features become virtualized by hardware.
>
> Except cpuid, which is handled in userspace, sort of :-)  I think the 
> same arguments apply here too.

No, cpuid is handled in the kernel (exactly to have everything cpuish in 
kernel).  It is *configured* from userspace, but then so is everything.

-- 
error compiling committee.c: too many arguments to function

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