On Mon, Jan 31, 2011 at 11:39:51AM -0500, Anish Patel wrote:
> I have this almost working now, I think the only thing that i need to
> change is to add a gfx_passthru=2 option to let xen know not to read
> from /dev/mem then an option to tell it what VGA rom to use. Are there
> any patches for 4.01 for this?
>
I think gfx_passthru can only use 0 or 1 nowadays.
Patches probably need to be forward-ported to current Xen..
most of them are for xen-unstable from the Xen 3.5 days..
-- Pasi
>
> Thanks
> Anish
> On 01/31/11 06:50, Pasi Kärkkäinen wrote:
>> On Sun, Jan 30, 2011 at 12:42:56AM -0500, Peter van der Maas wrote:
>>> I really have not played with too much after the proof of concept. I do
>>> recall something eventually breaking the config, perhaps a Xen update.
>>> I've since put the hardware to better use, although I am still intrigued by
>>> Xen. At the time, I was working with a team that was giving serious
>>> consideration to virtualizing their platform, and what better way to learn
>>> than dig in and get my hands dirty.
>>>
>>> I tried to include as much detail at the time, with the plethora of
>>> different Xen builds, BIOS's updates, etc.
>>>
>>> If someone has something specific I can try to help, but doubtful I will be
>>> of any use. For example, I did not realize Xen 4.x was even released.
>>> Recent projects I've been working on do not lend themselves well to
>>> virtualization; however, I might have to give Xen 4.0 shot - just to play,
>>> of course. There were some serious changes happening with Xen, the Linux
>>> kernel, and KVM when I stopped playing.
>>>
>> Ok.
>>
>> I mainly meant if you remember what custom patches did you have to
>> use/create?
>> Most probably you had to do some vBar=pBar hacking, right?
>>
>> I guess I'll have to try this myself one day and document the process
>> with current Xen versions..
>>
>> -- Pasi
>>
>>
>>> Sorry I could not be of more help.
>>>
>>> Peter van der Maas
>>> peter&pjv-c.com
>>>
>>> -----Original Message-----
>>> From: Pasi Kärkkäinen [mailto:pasik@xxxxxx]
>>> Sent: Saturday, January 29, 2011 2:04 PM
>>> To: Peter van der Maas
>>> Cc: xen-users@xxxxxxxxxxxxxxxxxxx; anish.mailing.list@xxxxxxxxx;
>>> xen-devel@xxxxxxxxxxxxxxxxxxx
>>> Subject: Nvidia 9500GT Xen VGA passthru
>>>
>>>
>>> Hello Peter,
>>>
>>> Some people have been asking for tips about Nvidia Xen VGA passthru,
>>> so maybe you could help?
>>>
>>> Could you post the exact steps you did?
>>>
>>> Have you tried with Xen 4.0.x after your initial experiments in 2009?
>>>
>>> Thanks!
>>>
>>> -- Pasi
>>>
>>> On Mon, Jan 26, 2009 at 02:16:32PM -0500, Peter J. van der Maas wrote:
>>>> I am happy to announce that I have successfully (and finally!) been
>>>> able
>>>> to pass a PCIe graphics card via VT-d to a Windows XP HVM DomU.
>>>>
>>>>
>>>>
>>>> About time!
>>>>
>>>>
>>>>
>>>> Config:
>>>>
>>>> -Intel Q6600 Core 2 Quad-Core, G0 stepping (I think)
>>>>
>>>> -Intel DQ35JO Motherboard, Q35 Chipset, BIOS v.991 (1/9/09), VT and
>>>> VT-d
>>>> enabled
>>>>
>>>> -nVidia 9500GT (for VT-d passthrough - DomU)
>>>>
>>>> -nVidia GeForce2 MX200 (Dom0 console)
>>>>
>>>> -Xen (build: xen-unstable, recent as of ~ 1/25/09 1:00AM-EST)
>>>>
>>>> -Dom0: Linux-2.6.18.8-xen (via xen-unstable.hg)
>>>>
>>>> -DomU: Windows XP (pro, sp3, 32-bit)
>>>>
>>>>
>>>>
>>>> Once the VT-d bugs were recently corrected (thank you, xen-devel!),
>>>> everything went fairly smoothly. Still very buggy yet (its
>>>> xen-unstable!), but overall it works.
>>>>
>>>>
>>>>
>>>> Make sure support for the PCI-backend is compiled into the kernel (not
>>>> just a module) and that you have your pciback.hide options in grub
>>>> (late-binding may work, but I haven't tried).
>>>>
>>>>
>>>>
>>>> Good luck!
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -Peter van der Maas
>>>> _______________________________________________
>>>> Xen-users mailing list
>>>> Xen-users@xxxxxxxxxxxxxxxxxxx
>>>> http://lists.xensource.com/xen-users
>
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