People here might be interested to know that Xen pvops dom0 core
was merged to upstream Linux kernel during the 2.6.37 merge window!
This has been in the works for a long time, so it's good news.
Note that this is the core/initial merge, there's more upstreaming
needed to get for example the Xen dom0 backend drivers merged
to be able to run other domains using the upstream kernel.
Xen developers are working on upstreaming more of the missing bits
in the next Linux versions.
Recently in addition to the Xen dom0 bits there has been other
upstreamed features aswell:
- Xen PV-on-HVM drivers for fully virtualized (HVM) Linux guests in 2.6.36,
and optimizations for the drivers in 2.6.37.
- Xen PCI front driver in Linux 2.6.37 for PCI passthru to Xen PV guests
(works also with hardware where VT-d/IOMMU is not available).
There will also be a git kernel tree based on 2.6.37 with the backend
drivers and other not-yet-upstreamed patches included.
Kernel tested OK under Xen 4.0.1 on F14. I captured some info. It's attached.
Is anything else required ?
--- On Sat, 10/30/10, M A Young <m.a.young(a)durham.ac.uk> wrote:
From: M A Young <m.a.young(a)durham.ac.uk>
Subject: Re: [Fedora-xen] Xen dom0 (core) merged to upstream Linux 2.6.37 and other new features
To: "Pasi Kärkkäinen" <pasik(a)iki.fi>
Date: Saturday, October 30, 2010, 7:39 PM
I have built a test kernel (2.6.37-0.1.rc0.git13.xendom0.fc15) from
upstream linux after the xen patches went in at
I haven't tested it yet but it should in theory boot as a dom0 kernel
though it won't support guests. This is very much a first attempt and it
might be completely broken.
xen mailing list
I have a virtual machine landscape consisting of a CentOS 5.3 Dom0 with
Xen 3.1.2, some PV CentOS DomU's with PCI passthrough (same versions),
and I'm trying to implement a F10 DomU with PCI passthrough. I set
everything up for the passthrough, and the F10 guest can't see any of
the devices with lspci. If I boot a CentOS PV machine with the same PCI
passthrough configuration, the devices show up with lspci. I've seen
some posts in various places about this issue, but no solutions. How do
I implement this?