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Re: [Xen-devel] [PATCH] [Xend] Move some backend configuration

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] [Xend] Move some backend configuration
From: John Levon <levon@xxxxxxxxxxxxxxxxx>
Date: Thu, 2 Oct 2008 14:45:36 +0100
Cc: Pascal Bouchareine <pascal@xxxxxxxxx>, "Daniel P. Berrange" <berrange@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
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On Thu, Oct 02, 2008 at 10:49:34AM +0100, Keir Fraser wrote:

> Of course the one downside is that this slightly changes the guest-visible
> interface since it can't scribble at will in /l/d/<domid> any more. I hope
> noone was relying on that! If we need to open up some more specific subdirs
> for write access, I will consider that.

We're writing to the following paths that aren't standard:

device-misc/vif/default-link
hvmpv/{xpv,xdf,xpvd,xnf}/version

Can they be opened up? (Ideally we'd use the guest/ suggestion below,
and we will, but there's already stuff out there assuming it can do
this.)

Also, I'd like to see an explicit /l/d/domid/guest directory. The guest
can write anything there, but there's a clear indicator that it's not to
be trusted (we could even document this stuff by expanding xenstore.txt
?)

regards
john

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