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

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Date:	Mon, 22 Mar 2010 14:31:49 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Avi Kivity <avi@...hat.com>,
	Antoine Martin <antoine@...afix.co.uk>,
	Olivier Galibert <galibert@...ox.com>,
	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>
Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single 
	project

On Mon, Mar 22, 2010 at 1:48 PM, Ingo Molnar <mingo@...e.hu> 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
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