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Re: [Xen-devel] is a pure usermode backend possible?

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] is a pure usermode backend possible?
From: Keir Fraser <keir@xxxxxxx>
Date: Fri, 19 Nov 2010 10:06:45 +0000
Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
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Thread-topic: [Xen-devel] is a pure usermode backend possible?
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Stefano posted a pure userspace blkback for qemu only yesterday. Apparently
it performs very well.

 -- Keir

On 19/11/2010 09:59, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:

> Is there any reason why a purely user mode backend driver could not work
> in Dom0? I believe that the xenstore, grant table, and event channel
> interfaces all exist so I can't see why not, unless creating nodes under
> /local/domain/0/backend might confuse something?
> 
> Assuming it's possible, are there any performance reasons or other
> reasons why it might not be a good idea?
> 
> Thanks
> 
> James
> 
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