linux-kernel - Re: [RFC] Unify KVM kernel-space and user-space code into a single project

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Message-ID: <84144f021003220940x25e40624pb0b86f62b79fd707@mail.gmail.com>
Date:	Mon, 22 Mar 2010 18:40:15 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Avi Kivity <avi@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Anthony Liguori <anthony@...emonkey.ws>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Sheng Yang <sheng@...ux.intel.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	Marcelo Tosatti <mtosatti@...hat.com>,
	oerg Roedel <joro@...tes.org>,
	Jes Sorensen <Jes.Sorensen@...hat.com>,
	Gleb Natapov <gleb@...hat.com>,
	Zachary Amsden <zamsden@...hat.com>, ziteng.huang@...el.com,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Fr?d?ric Weisbecker" <fweisbec@...il.com>,
	Gregory Haskins <ghaskins@...ell.com>
Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single 
	project

On Mon, Mar 22, 2010 at 6:16 PM, Avi Kivity <avi@...hat.com> wrote:
>> You simply kept ignoring me when I said that if something can be kept out
>> of the kernel without impacting performance, it should be.  I don't want
>> emergency patches closing some security hole or oops in a kernel symbol
>> server.
>
> Or rather, explained how I am a wicked microkernelist.  The herring were out
> in force today.

Well, if it's not being a "wicked microkernelist" then what is it?
Performance is hardly the only motivation to put things into the
kernel. Think kernel mode-setting and devtmpfs (with the ironic twist
of original devfs being removed from the kernel) here, for example.

                        Pekka
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