Am I correct in believing that the majority of IO for all domains passes
through the DOM-0 kernel? I would think that a huge number of IO drivers
would need to move into Xen in order to allow this without severe IO
disruption. Are there methods of disk / network IO that do not rely on
DOM-0?

Charlie


On 30 April 2010 17:19, Subbiah Kandasamy (skandasa) <skandasa@cisco.com>wrote:

> Thanks Pasi, I am sure there are other things as well. I am looking for any
> pointers listing the work done in that area.
>
> Thanks,
> -SK.
>
> -----Original Message-----
> From: Pasi Kärkkäinen [mailto:pasik@iki.fi]
> Sent: Thursday, April 29, 2010 5:34 PM
> To: Subbiah Kandasamy (skandasa)
> Cc: xen-devel@lists.xensource.com
> Subject: Re: [Xen-devel] Dom0 restartability
>
> On Thu, Apr 29, 2010 at 04:05:13PM -0700, Subbiah Kandasamy (skandasa)
> wrote:
> >    In today's Xen summit I heard there is some work done on the
> >    restartability of dom0. Any pointers to what has been done and what is
> >    pending and the patches ?.
> >
>
> Restarting dom0 requires for example moving xenstored out of dom0..
> so you don't lose the database when you restart dom0.
>
> -- Pasi
>
>
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