[Pkg-xen-devel] unmodified_drivers DKMS package

[C.J. Adams-Collier]

On Wed, 2010-04-14 at 13:32 +0300, Pasi Kärkkäinen wrote:
> On Mon, Apr 12, 2010 at 08:58:53AM +0100, Ian Campbell wrote:
> > On Mon, 2010-04-12 at 10:00 +0300, Pasi Kärkkäinen wrote: 
> > > On Sat, Apr 10, 2010 at 07:55:07AM +0100, Ian Campbell wrote:
> > > > On Fri, 2010-04-09 at 13:19 -0700, C.J. Adams-Collier wrote: 
> > > > > Hey folks,
> > > > > 
> > > > > I'd like to get a .deb of the unmodified_drivers put together.  I just
> > > > > filed ITP, and I would love to have your help with it.
> > > > > 
> > > > > http://wp.colliertech.org/cj/?p=653
> > > > > 
> > > > > I've never built a kernel package before, nor have I used DKMS, so it's
> > > > > going to be a bumpy ride for me.
> > > > > 
> > > > > Do any of you have experience with these tools?  Have you built the
> > > > > unmodified_drivers modules recently?  Would I be able to get this
> > > > > package into the xen-3 source package?
> > > > > 
> > > > > http://packages.debian.org/source/sid/xen-3
> > > > > 
> > > > > Looking forward to your responses,
> > > > 
> > > > I already replied to the ITP but I guess it is worth repeating myself in
> > > > this thread:
> > > > 
> > > > > This would be very cool but: As far as I know the existing unmodified
> > > > > drivers (sometimes called PVonHVM drivers) do not work with the
> > > > > paravirt_ops kernel which will be in Squeeze.
> > > > > 
> > > > > However, there is someone upstream who is working on making the
> > > > > PVonHVM functionality available directly in the upstream kernel.org
> > > > > tree so that, eventually, a separate set of additional drivers will
> > > > > not be required.
> > > > 
> > > > I'd definitely confirm that you really are able to compile the
> > > > unmodified drivers by hand against the 2.6.32 kernel in Squeeze before
> > > > digging into packaging anything up.
> > > > 
> > > 
> > > Novell has unmodified_drivers working for their 2.6.32 (SLES11 SP1) kernel.
> > > Their stuff is not pvops based.
> > 
> > Those drivers would still need extracting from that 2.6.32 tree and made
> > to work as an out of tree driver, either as a standalone driver pack or
> > by updating the unmodified_drivers tree in xen-unstable.hg.
> > 
> > Perhaps they could be ported across and incorporated into the Squeeze
> > kernel directly. This would be at the discretion of the debian-kernel
> > maintainers and the general rule is that the driver must be already
> > accepted upstream which these drivers are not.
> > 
> > In any case I think my point, that someone needs to make this thing work
> > at all before worrying about how to package it, still stands.
> > 
> > Ian.
> > 
> 
> Andrew Lyon actually figured out how to build them.. would still need cleaning up
> to make the build process easier.
> 
> -- Pasi
> 

Excellent news.  I found an email thread discussing this: 

http://lists.xensource.com/archives/html/xen-devel/2010-04/msg00502.html

Hey there Andy, 

I'd like to fix the blog post to account for the problems you ran into.
I'd be willing to give you an account on the blog if you feel like doing
it yourself, but if you don't have the time, I can fix it up to address
the issues you've run into. 

http://wp.colliertech.org/cj/?p=653 

I'd also like to create a debian package of the drivers (the topic of
this thread).  I've filed intent to package, but haven't had a chance to
try building with the stock kernel yet.

How close to the Debian source is the kernel you've performed this build
against, I wonder?  I hear rumors that the debian kernel has the SuSE
patches applied...

http://download.opensuse.org/source/distribution/11.2/repo/oss/suse/src/xen-3.4.1_19718_04-2.1.src.rpm

Can some of you on the pkg-xen-devel list give some hints?  I'll try to
compile the drivers using the source from sid as I have time.

Thanks in advance,

C.J.


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