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Re: [Xen-devel] Dear Tobias Geiger, I Need Help with Xen VGA Passthrough to Windows 8 Consumer Preview/ XP (Xen 4.2-unstable)



With ATI VGA cards, you still need to patch Xen 4.2-unstable? I thought Tobia 
Geiger said that patches are not required?

Thank you very much.

--
Yours sincerely,

Mr. Teo En Ming (Zhang Enming)
Singapore



On 28/03/2012 00:07, djmagee@xxxxxxxxxxxx wrote:
-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-
bounces@xxxxxxxxxxxxx] On Behalf Of Tobias Geiger
Sent: Tuesday, March 27, 2012 10:54 AM
To: Teo En Ming (Zhang Enming)
Cc: xen-users@xxxxxxxxxxxxx; Ren,Yongjie; David TECHER; Zhang,Xiantao;
xen-devel@xxxxxxxxxxxxx
Subject: Re: [Xen-devel] Dear Tobias Geiger,I Need Help with Xen VGA
Passthrough to Windows 8 Consumer Preview/ XP (Xen 4.2-unstable)

i can only say for sure that it works with a "Radeon HD 6970" - thats
what i'm
using. stay away from dual-gpu cards, they have a more complex pci-bus
structure which may not work when passed-through.
The newer 7XXX may also work, i also think i read something about 5XXX
cards
working - but don't take any older ones.
I've had a working configuration for a few months now with a 4770.

that said i can only tell for sure it works with the mentioned 6970 -
simply
because i haven't tested any other cards yet myself.

regarding the patches - they should be the same, as he claims somewhere
that
he took mine and forward-ported them to a then recent xen version.

With the ati card above you don't need any patches at all. none from
david
techer, none from ati. pure vanilla xen (4.X or unstable) is enough.
However, this configuration lacks the VBIOS passthrough, so one needs to use 
VNC to install the drivers.  There is an old patch floating around that does 
ATI bios passthrough, but it  would need to be forward ported.  That being 
said, I never cared too much, since I can't use my passthrough'd USB keyboard 
to do anything in the guest until an OS loads with USB support.

Hmmm, actually, I wonder if seabios supports USB keyboards...

Greetings
Tobias


Am Dienstag, 27. März 2012, 16:07:06 schrieb Teo En Ming (Zhang
Enming):
Dear Tobias Geiger,

One final request from me: Can you check whether the Xen VGA
Passthrough
patches hosted at David TECHER's official blog are the same as yours?

David Techer told me it's a NVIDIA driver issue, which I don't think
so.
I seriously wonder what's wrong with the glitch. I am using NVIDIA
driver version 296.17 for Windows 8 Consumer Preview.

Xen VGA Passthrough to Windows 8 Consumer Preview: I can watch
Youtube
videos with audio/sound and surf the internet as well. But I just
can't
run 3d graphics benchmarks. Only 2d graphics benchmarks can be run.

By the way, I have only recently bought this Palit NVIDIA Geforce
8400
GS at SGD$44. If I buy an ATI card, what would you recommend that is
CHEAP? Must be PCI Express x16. Then do you think the Xen VGA
Passthrough patches are necessary any more?

Please refer to the computer hardware pricelist here
http://www.fuwell.com.sg/uploads/misc/Fuwell240312.pdf and recommend
me
a cheap ATI card. Preferably SGD$50.

Finally, Xen VGA Passthrough to Windows XP Home Edition also has the
yellow exclamation mark glitch with NVIDIA Geforce 8400 GS. With Xen
4.2-unstable.

Thank you very much.

Hi Teo,

sorry to hear that it didn't help.

Unfortunatly thats all the hints i'm able to give you - from now on
you're out there alone so to speak :)

Good luck - or (even on the danger of repeating myself:) just buy
an ATI
card...

Greetings
Tobias

Am Dienstag, 27. März 2012, 15:10:00 schrieb Teo En Ming (Zhang
Enming):
On 27/03/2012 19:55, Teo En Ming (Zhang Enming) wrote:
Dear Tobias Geiger,

Thank you for reading through my Xen VGA Passthrough Version 1.6
documentation.

I am now trying out your suggestion, i.e. expose the 4th memory
range.
When I refer to David Techer's official blog and his emails, he
only
mention the first 3 memory ranges. When I asked David Techer what
about the 4th memory range, he said nothing.

Let's hope I get lucky and get the yellow exclamation mark with
NVIDIA
Geforce 8400 GS (ie Xen VGA Passthrough to Windows 8 Consumer
Preview
*PARTIAL* success) FIXED.

By the way, what is the problem with my Xen WIKI? Xen.org
administrator Mr. Lars Kurth edited my Xen Wiki pages for me.

If it works, I will have Xen VGA Passthrough Version 1.7
documentation
and FINAL as well.

Thank you very much for reading through my documentation and
giving me
suggestions. I hope it works now.
Dear Tobias Geiger,

I have just exposed the 4th memory region, patched dsdt.asl,
recompiled
and reinstalled Xen 4.2-unstable but IT STILL DOESN'T WORK. There
is
still a yellow exclamation mark besides NVIDIA Geforce 8400 GS in
Xen
VGA Passthrough to Windows 8 Consumer Preview.

I still cannot run 3d graphics benchmarks. Only 2d graphics
benchmarks
can run.

Please read through my Xen VGA Passthrough Version 1.6
documentation
again to see if there are any mistakes. Please. Please. Please. I
want
to fix that glitch. Any more ideas?

I hope some expert engineers at Intel Corporation (Han Weidong,
Zhang
Xiantao, and Ren Yongjie) can fix this glitch with Xen VGA
Passthrough
to Windows 8 Consumer Preview. They are after all the original
authors/developers who wrote the Xen VGA Passthrough patches. But
Han
Weidong has left Intel Corp, I think. He was still at Intel 3
years ago.
Thank you very much. Eagerly awaiting your reply.

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