From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755539Ab0CVRwd (ORCPT ); Mon, 22 Mar 2010 13:52:33 -0400 Received: from mail-fx0-f223.google.com ([209.85.220.223]:46341 "EHLO mail-fx0-f223.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753282Ab0CVRwb convert rfc822-to-8bit (ORCPT ); Mon, 22 Mar 2010 13:52:31 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=jJI2sC1V99mGPoQ+TBwMtto/w2CVXLARNNXb2qg5xdeZR3/hNLhrLZTM3Y5HdTOHUq LHo7Qlv2ievLHqXD59Jr7y9mQmY65Aw6+OfHLC5P12Gu2BoEcgilLO2TERtNrAXHbSde F1IxtbDErxM6yzF/WXd4GzN5fBqUHPAiOW0f8= MIME-Version: 1.0 In-Reply-To: <4BA7A9AF.3010806@redhat.com> References: <20100318172805.GB26067@elte.hu> <4BA67B2F.4030101@redhat.com> <20100321203121.GA30194@elte.hu> <20100322111040.GL13108@8bytes.org> <20100322122228.GH3483@elte.hu> <20100322134633.GD1940@8bytes.org> <20100322163215.GC18796@elte.hu> <84144f021003221027t1a3e7d6ft64612654c5e50da@mail.gmail.com> <4BA7A9AF.3010806@redhat.com> Date: Mon, 22 Mar 2010 19:52:29 +0200 X-Google-Sender-Auth: dc4e6f534dd99750 Message-ID: <84144f021003221052lb693f15ped0b432c34cdd8dc@mail.gmail.com> Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single project From: Pekka Enberg To: Avi Kivity Cc: "Frank Ch. Eigler" , Ingo Molnar , Joerg Roedel , Anthony Liguori , "Zhang, Yanmin" , Peter Zijlstra , Sheng Yang , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Marcelo Tosatti , Jes Sorensen , Gleb Natapov , Zachary Amsden , ziteng.huang@intel.com, Arnaldo Carvalho de Melo , "Fr?d?ric Weisbecker" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Avi, On Mon, Mar 22, 2010 at 7:32 PM, Avi Kivity wrote: >> It's kinda funny to see people argue that having an external >> repository is not a problem and that it's not a big deal if building >> something from the repository is slightly painful as long as it >> doesn't require a PhD when we have _real world_ experience that it >> _does_ limit developer base in some cases. Whether or not that applies >> to kvm remains to be seen but I've yet to see a convincing argument >> why it doesn't. > > qemu has non-Linux developers.  Not all of their contributions are relevant > to kvm but some are.  If we pull qemu into tools/kvm, we lose them. Yeah, you probably would but the hypothesis is that you'd end up with a bigger net developer base for the _Linux_ version. Now you might not think that's important but I certainly do and I think Ingo does as well. ;-) That said, pulling 400 KLOC of code into the kernel sounds really excessive. Would we need all that if we just do native virtualization and no actual emulation? Pekka