From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH] Register watches for frontend features.
Date: Sat, 10 Jul 2010 10:30:47 -0700
Message-ID: <4C38AE47.9020009@goop.org>
References: <1278329973-12414-1-git-send-email-paul.durrant@citrix.com>	<4C34C320.2010102@goop.org>
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To: Paul Durrant <Paul.Durrant@citrix.com>
Cc: Campbell <Ian.Campbell@eu.citrix.com>Ian, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
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On 07/09/2010 05:53 AM, Paul Durrant wrote:
> Realistically, with a Windows frontend, the only ones that are going to change dynamically are gso_prefix and csum. I can 'de-watch' the others, if you'd prefer.
> As for locking, it's not clear to me how fatal getting netbk_max_required_rx_slots wrong is. However, losing or gaining gso/gso_prefix part way through a receive is not going to be good so I thing some double buffering is probably called for. I'll re-work the patch accordingly.
>   

Yes.  Given that those are guest-controlled, dom0 needs to be very
careful in how it handles them.

    J