From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754700Ab0CVMby (ORCPT ); Mon, 22 Mar 2010 08:31:54 -0400 Received: from mail-fx0-f223.google.com ([209.85.220.223]:49607 "EHLO mail-fx0-f223.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753573Ab0CVMbw convert rfc822-to-8bit (ORCPT ); Mon, 22 Mar 2010 08:31:52 -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=uvW5yAWqjWqGLeEcn8nmF8aeKQ6KcTkioyExww1VTfDwX3Sakz0XEDlp8lnMeOp+8K ESFh1t+rq295jEuMyjGUu8ZoMF6nsk6pDR1tSeOZXTDk4ErlAsXtbOQuFx9DVNP1xpfS iwA+GO7MbTCMzMplGVOrClafBuTuLcM3y9jEI= MIME-Version: 1.0 In-Reply-To: <20100322114824.GF3483@elte.hu> References: <20100321191742.GD25922@elte.hu> <20100321200849.GA51323@dspnet.fr.eu.org> <4BA67D75.8060809@redhat.com> <4BA67F12.6030501@nagafix.co.uk> <4BA68063.2050800@redhat.com> <4BA68234.1060804@nagafix.co.uk> <4BA68997.60406@redhat.com> <20100321212009.GE30194@elte.hu> <4BA70F9A.8030304@redhat.com> <20100322114824.GF3483@elte.hu> Date: Mon, 22 Mar 2010 14:31:49 +0200 X-Google-Sender-Auth: 360c0cb31576dcef Message-ID: <84144f021003220531p391975f2p5a2e0cfd3a2af6d@mail.gmail.com> Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single project From: Pekka Enberg To: Ingo Molnar Cc: Avi Kivity , Antoine Martin , Olivier Galibert , Anthony Liguori , "Zhang, Yanmin" , Peter Zijlstra , Sheng Yang , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Marcelo Tosatti , oerg Roedel , 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 On Mon, Mar 22, 2010 at 1:48 PM, Ingo Molnar wrote: >> What about line number information?  And the source?  Into the kernel with >> them as well? > > Sigh. Please read the _very first_ suggestion i made, which solves all that. I > rarely go into discussions without suggesting technical solutions - i'm not > interested in flaming, i'm interested in real solutions. > > Here it is, repeated for the Nth time: > > Allow a guest to (optionally) integrate its VFS namespace with the host side > as well. An example scheme would be: > >   /guests/Fedora-G1/ >   /guests/Fedora-G1/proc/ >   /guests/Fedora-G1/usr/ >   /guests/Fedora-G1/.../ >   /guests/OpenSuse-G2/ >   /guests/OpenSuse-G2/proc/ >   /guests/OpenSuse-G2/usr/ >   /guests/OpenSuse-G2/.../ > >  ( This feature would be configurable and would be default-off, to maintain >    the current status quo. ) Heh, funny. That would also solve my number one gripe with virtualization these days: how to get files in and out of guests without having to install extra packages on the guest side and fiddling with mount points on every single guest image I want to play with. Pekka