Re: [Xen-devel] design questions: blktap & dom0-kernel/Xen binary compatibility

[Thanos Makatos <thanos.makatos@xxxxxxxxxx>]

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxx] On Behalf Of Andreas Kinzler
> Sent: 04 February 2013 17:46
> To: xen-devel@xxxxxxxxxxxxx
> Subject: [Xen-devel] design questions: blktap & dom0-kernel/Xen binary
> compatibility
> 
> I have two design questions:
> 
> a) is there some doc on binary compatibility between dom0-kernels and
> Xen/xen-tools? For example Xen 4.2.1 on my system does not work with
> xenified OpenSuse 12.2 kernel, while it seems to work with vanilla 3.7.
> I am interested in some kind of compatibility matrix having various
> kernels (pvops0, xenified, with versions) on one axis and Xen releases
> on the other axis. Also having some info about reasons for breakage-by-
> design would be helpful.
> 
> b) is there some doc/info on what is going on with blktap[1,2,3]? I am
> specifically interested in underlying (design) questions, for example
> why blktap was not migrated to vanilla kernel 3.x?

Blktap3 is under development (https://bitbucket.org/tmakatos/blktap3-patches), 
if you search the xen-devel archives for blktap3 you can get a rough idea of 
its architecture.

> 
> Regards Andreas
> 
> 
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