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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)



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.

--
Yours sincerely,

Mr. Teo En Ming (Zhang Enming)
Singapore



On 27/03/2012 19:08, Tobias Geiger wrote:
Dear Teo,

i mean your problem is know, but no known solution exists.
That doesn't mean there is no solution, it just means nobody found one yet :)

It's spoken/written out many places (xen-devel/xen-users) that VGA passthrough
with nvidia works ok with windows xp, but not with windows versions higher
than xp. but it works with ati.

to get to the actual problem:
you could try to also expose the "0xd30...- 0xd307fff" acpi regions.
no idea if that helps in any way i just saw that this is the only region
you're not mentioning in the patched dsdt.asl

good luck - but please try to accept the fact that nobody _knows_ the solution
to your problem (well at least nobody i know of).

and about the pdf/wiki - ah... forget it

Greetings
Tobias

Am Dienstag, 27. März 2012, 12:46:39 schrieb Teo En Ming (Zhang Enming):
Dear Tobias Geiger,

You mean my problem cannot be solved at all (as regards to the yellow
exclamation mark with NVIDIA Geforce 8400 GS and CANNOT run 3D graphics
benchmarks)? I _DO NOT_ have this problem back when I was doing Xen VGA
Passthrough to Windows XP HVM domU with Xen 3.5-unstable. Yes, 3 years
ago, back in the year 2009, with Xen 3.5-unstable. Back when Han Weidong
was still around in Intel Corporation.

I am surprised that you are unable to open my Xen VGA Passthrough
Version 1.6 PDF documentation. I have tried opening the file attachment
myself and it is not empty.

To solve the problem with your email client, I am providing the Xen Wiki
link to my Xen VGA Passthrough Version 1.6 PDF documentation.

Xen WIKI link:
http://wiki.xen.org/wiki/Xen_VGA_Passthrough_to_Windows_8_Consumer_Preview_
64-bit_English_HVM_domU_and_Windows_XP_Home_Edition_SP3_HVM_domU_with_Xen_4
.2-unstable_Changeset_25070_and_Linux_Kernel_3.3.0_in_Ubuntu_11.10_oneiric_
ocelot_amd64_Final_Release_Dom0

You can also watch a Youtube video of my partially successful Xen VGA
Passthrough to Windows 8 Consumer Preview HVM virtual machine.

Xen WIKI link:
http://wiki.xen.org/wiki/Video:_Xen_VGA_Passthrough_to_Windows_8_and_Ubuntu
_11.10_with_Xen_4.2_and_Kernel_3.3

Please do help to read through my Xen VGA Passthrough Version 1.6
documentation to see if there are any mistakes, *_ESPECIALLY MMIO BARS
pBAR:vBAR 1:1 mapping._*

Thank you very much for your prompt response and kind assistance.

Dear Teo,

your problem is "known". unfortunatly no "known" solution exists.
of course you can try to find one - but that involves much try-and-error
on your side.
The "easy" solution would be: replace your NVIDIA card with a recent ATI
one.

Besides the fact that i can't open your PDF (empty file...) it's really
really annoying - for various reasons; first: nobody can edit the PDF
except you. second: now your pdf is stored in thousands of mailboxes in
various versions - if it were a wiki-article or anything else web-based,
it would be there only once. i love things which have a definite
place...
please consider the suggestion many others already made to bring your
good intended documentation effort to a technical state and place where
everybody has the maximum profit of it: WIKI

Thanks and Greetings to Singapore!
Tobias

Am Dienstag, 27. März 2012, 11:48:25 schrieb Teo En Ming (Zhang Enming):
Dear Tobia Geiger and Xen users and developers,

My Xen VGA Passthrough to Windows 8 Consumer Preview and Windows XP HVM
domU is only *_partially_* successful. There is a yellow exclamation
mark besides NVIDIA Geforce 8400 GS in Device Manager. Device Manager
reports:

Windows has stopped this device because it has reported problems. (Code
43)

This device isn't using any resources because it has a problem.

I suspect the above problem has to do with MMIO BARs pBAR:vBAR 1:1
mapping.

Could you read through my attached "Xen VGA Passthrough - Version
1.6.pdf" documentation carefully to see if there are any mistakes in
this area? Of concern are Sections 3, 4, and 6 in my Xen VGA Passthrough
documentation.

I am using Xen 4.2-unstable changesets 25070 and 25099 and Linux Kernel
3.3.0.

Thank you very much for your kind assistance.




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