From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH] pv-grub: fix boot crash when no fb is
	available
Date: Tue, 06 Apr 2010 12:17:55 -0700
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To: "David P. Quigley" <dpquigl@tycho.nsa.gov>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>, xen-devel@lists.xensource.com, Ian Campbell <Ian.Campbell@citrix.com>, Daniel Stodden <daniel.stodden@citrix.com>
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On 04/06/2010 11:22 AM, David P. Quigley wrote:
> I'm under the impression that if you just do tap:aio it instantiates a
> blktap device not a blktap2 device. There are definitely different
> blktap controller classes in xend which handle entries using tapdisk and
> ones just using tap.
>    

The pvops dom0 doesn't have blktap support, only blktap2 (unless blktap2 
does a back-compat thing?).  Or maybe it falls back to plain blkback?

     J