[Pkg-xen-devel] unmodified_drivers DKMS package

[Pasi Kärkkäinen]

On Wed, Apr 14, 2010 at 05:39:21AM -0700, C.J. Adams-Collier wrote:
> 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.
> 

Lenny's 2.6.26 -xen kernel is based on early version of Novell/SLES/OpenSuse 
xenlinux patches.

Squeeze 2.6.32 -xen kernel is NOT based on Novell patches, it's based on pvops dom0 kernel.

-- Pasi