Re: [Xen-devel] blktap3 as a block device?

[Thanos Makatos <thanos.makatos@xxxxxxxxxx>]

> -----Original Message-----
> From: Ian Campbell
> Sent: 26 November 2012 10:45
> To: Darren Shepherd
> Cc: Fajar A. Nugraha; xen-devel@xxxxxxxxxxxxx; Thanos Makatos
> Subject: Re: [Xen-devel] blktap3 as a block device?
> 
> On Sat, 2012-11-24 at 01:08 +0000, Darren Shepherd wrote:
> > The more direct question is going forward with blktap3 is there going
> > to be a way to see the blktap device as a block device in dom0?
> 
> There will have to be, e.g. to support pygrub and similar uses.
> 
> I'm not sure what form this will eventually take though (CCing Thanos,
> blktap3 maintainer). Ideas which I've heard floating about are to have
> tapdisk export an nbd server or supporting running a vbd device in dom0
> in a loopback type mode.

Yes this is one of the possibilities; this functionality is already on 
blktap2.5 (where blktap3 is based on).

Another idea could be to use both blkfront and tapdisk on dom0, haven't 
considered that thoroughly though.

> 
> Ian.
> 

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