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Re: [Xen-devel] Xen patches merged to upstream Linux 2.6.36, plans for 2.6.37?
- To: Pasi Kärkkäinen <pasik@xxxxxx>
- From: "Mr. Teo En Ming (Zhang Enming) of Singapore" <space.time.universe@xxxxxxxxx>
- Date: Tue, 17 Aug 2010 01:23:27 +0800
- Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, zhang_enming@xxxxxxxxxxx, "teoenming@xxxxxxxxxxx" <teoenming@xxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, "Han, Weidong" <weidong.han@xxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, "space.time.universe@xxxxxxxxx" <space.time.universe@xxxxxxxxx>
- Delivery-date: Mon, 16 Aug 2010 10:25:12 -0700
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- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
I have serious doubts that those one-year-old patches from Han Weidong
of Intel Corp could be applied to Xen 4.0.1-rc6. They could be
extremely incompatible since source codes written now would be vastly
different to those written one year ago, especially for the Xen
hypervisor. Those patches were designed or written in mind for
xen-unstable version 3.5. Just one year back then.
Are there no ***CURRENT*** patches for Xen 4.0.1-rc6 to enable
secondary graphics adapter VGA passthrough from Intel Corporation?
Let's ask Han Weidong for his opinion on this matter.
At the moment, I think I am just going to try VGA passthrough of the
Intel IGD only.
Thank you very much.
Yours sincerely,
Mr. Teo En Ming (Zhang Enming)
Citizenship: Singapore Citizen/Singaporean
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My Open Letter (Plea for Medical Help/Assistance) to World Leaders:-
http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-August/007693.html
http://lists.fedoraproject.org/pipermail/users/2010-August/380213.html
http://mythtv.org/pipermail/mythtv-users/2010-August/294733.html
On 08/17/2010 12:55 AM, Pasi Kärkkäinen wrote:
On Tue, Aug 17, 2010 at 12:44:44AM +0800, Mr. Teo En Ming (Zhang Enming) of Singapore wrote:
Dear Pasi,
I have just finished downloading the latest Xen 4.0.1-rc6 hypervisor and
also the latest paravirt-ops dom0 Linux kernel 2.6.32.19, at the time of
this writing.
I understand that, by default, Xen 4.0.x hypervisor series support VGA
passthrough of the primary graphics adapter, especially Intel Integrated
Graphics Device (IGD) if you are using an Intel Desktop Board like me
(Intel DQ45CB). Hence no additional work/patches are required if you just
want to passthrough the IGD or primary VGA adapter. But VGA passthrough of
the secondary graphics adapter, ie. my NVIDIA GeForce 8400 GS PCI Express
x16 display adapter, is not supported by default. To passthrough the
secondary graphics adapter to your Windows XP, Windows Vista or Windows 7
HVM fully virtualized virtual machine, patches are required to load the
VGA BIOS of the secondary graphics adapter from a file named
vgabios-pt.bin and also to perform 1:1 vBAR:pBAR mappings.
I have just finished reading through the following Xen wiki pages:
[1]http://wiki.xensource.com/xenwiki/XenParavirtOps
[2]http://wiki.xensource.com/xenwiki/XenVGAPassthrough
[3]http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html
[4]http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html
I am wondering if I can apply the four patches attached in this xen-devel
mailing list topic
[5]http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html
to Xen 4.0.1-rc6?
I have already used those same set of patches from Han Weidong of Intel
Corporation between July and November last year (2009) to patch
xen-unstable 3.5 for my NVIDIA GeForce 8400 GS PCI Express x16 VGA
adapter. The thing that is troubling me is whether I can used the same set
of patches to patch Xen 4.0.1-rc6, since the patches are already outdated.
The patches which had been provided by Han Weidong to me were dated 31st
August 2009, almost one year ago.
I am asking if the patches provided here at
[6]http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html
are ***COMPATIBLE*** with Xen 4.0.1-rc6 at all? Would the patches cause
errors to be displayed/generated when applied to Xen 4.0.1-rc6?
I am looking forward to your reply.
I haven't tried those patches.. so you just have to try and see how it goes!
-- Pasi
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