On Sat, Jan 10, 2009 at 09:28:59PM +0100, Christophe Saout wrote:
Hi Marc,
I am very excited to see that dom0 pvops is finally coming close to
working, so I wanted to give it a try.
>From the description it was not clear to me which kernel to chose as
base for the patches.hg, so I took the latest (that was ~ 2 weeks ago)
kernel on git.kernel.org I could find (post-2.6.28 git tip at that
point).
Just follow the instructions on this wiki page:
http://wiki.xensource.com/xenwiki/XenParavirtOps
You could also search the Archives of xen-devel beginning around
November 2008 for more
informations...
Yes, I followed those instruction (or at least I believe I did). It is
however not specific as to which kernel version from the "tip.git" to
use as base for applying the patches. I mean, that is not really my
problem, I got everything applied and have a compiling kernel. It just
doesn't boot (or at least doesn't get as far as for instance Pasi and
his experiments).
pv_ops dom0 patches are currently for 2.6.28-rc8.
I think and hope Jeremy will update them when he gets back from his vacation
next week.
Actually, I am not really interested in getting a working kernel (I know
that there are still some pieces missing), so this is purely academical
and for testing. Since the patches are supposed to be merged soon (at
least I got the impression that was the plan) I though I was going to
join the testing effort. And at this point they are supposed to sort of
work on any bleeding edge kernel, right? So I took one.
I could have gone back in the history and take something around
2.6.28-rc8 (which seemed to have worked for others), but then they were
using x86_32 and I am testing x86_64, if I see correctly. So my
question was mostly if this had seen some testing at all, is supposed to
work, and if it is, did I miss something. In any case, this is the
result of my testing. :-)
I think some people have been trying x86-64 too, with similar results than
me and others on x86-32.
I also forward-ported a few things to the latest version a few hours
ago, including some changes in xen-iommu.c to follow the dma_ops merging
thing in the tip head.
Nice.
I also just noticed there are some new patches in
http://xenbits.xen.org/paravirt_ops/patches.hg/
"Fixes for PAE swiotlb with Becky's patches."
Maybe I should try and see if those make any difference.
Home