Re: [Xen-users] vga passthrough help needed.

[David Sutton <pere@xxxxxxxxxxxx>]

Donald,

  I didn't have to install any patches when I got my system up and running, 
however its a little different from yours;

  I'm running an AMD Phenom II x4 965 on an ASUS Sabretooth 990FX r1.0 
motherboard. The system has two graphics cards; an NVidia GeForce 550Ti (used 
by dom0) and an ATI Radeon HD 6770 passed through to a Windows 7 domU. Some 
things I've noted so far: I've not been able to have the GPLPV drivers 
installed at the same time as the Catalyst drivers; it would cause issues such 
as the Catalyst installer to crash or the system to blue-screen on bootup. I 
had to add on the option 'iommu=soft' when nooting my dom0 (this might not 
still be needed but isn't hurting anything). I also was having issues with the 
12.8 Catalyst drivers; I used the 12.7 instead and had less issues getting them 
installed.

Regards,

  David

----- Original Message -----
From: "Donald van der Wurf" <d.vander.wurf@xxxxxxxxx>
To: "Ricardo Jesus" <ricardo.meb.jesus@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Sent: Saturday, October 13, 2012 5:35:59 AM
Subject: Re: [Xen-users] vga passthrough help needed.

One more question. 
I read that for nvidia some patches need to be applied. 
So in my understanding for AMD, no patches are needed. It should just work out 
of the box? 

Donald 

2012/10/13 Donald van der Wurf < d.vander.wurf@xxxxxxxxx > 


My hardware supports vt-d without a doubt because i am able to passthrough 
other devices without a problem but still i can't get vga passthrough to work. 

Als tried a windows 8 dom-u now. 
- built the dom-u without passhtrough first. Windows 8 runs like a charm. 
- then i add the pci devices. Windows detects the ATI Mobility Radeon HD 5000 
Series and uses the built-in WDDM v1.20 driver, but cannot start the device 
(Code 10) in device manager. 
- i see the passthrough HD Audio device without exclamation mark. 
- i see the passthrough usb devices, and can plug in a usb stick and copy files 
from it. 
- then i installed the current catalyst driver package 12.8 for win8, and the 
vm hangs during installation. 

Still i am thinking about if my hardware is the root cause? it's not on the 
supported list, and i read a lot of things about finding the right hardware 
combination to get it working. Especcialy on esx (didn't work for me), 
xenserver (also no success) and now Xen which also doesn't seem to work. 
So are there any people out there who use my hardware, and got it working? 
(motherboard, cpu and gpu?). 



2012/10/12 Ricardo Jesus < ricardo.meb.jesus@xxxxxxxxx > 


Hi, 

I have a similar GPU PowerColor Go! Green HD5450 1024MB DDR3 PCIEx16 
and it sure does support VGA/PCI passthrough on Ubuntu 12.04 LTS and 
Windows 8 Preview/Consumer and lspci -vv outputs exactly the same 
string. 

A quick Google search does identify both CPU and motherboard has 
having VT-d support on manufacturer homepages. So in terms of hardware 
you're pretty much ok. 

However I'm using Debian Wheezy, distro's Xen 4.1.3, kernel 3.2.0 and 
3.5-trunk, xm toolstack and pci-stub. However I'm unable to 
successfully passthrough using pciback. 

Haven't tried Windows 7 though. 


Best regards, 
Ricardo Jesus. 


On Thu, Oct 11, 2012 at 10:26 PM, Donald van der Wurf 
< d.vander.wurf@xxxxxxxxx > wrote: 
> Hi Xen community, 
> 
> 
> I've been playing with gpu passthrough for a while now, without success, so 
> i'm starting to think that my hardware is the problem. 
> 
> 
> 
> My config: 
> 
> Motherboard: supermicro x9scl+ 
> 
> CPU: Intel Xeon Processor E3-1230 V2 
> 
> Memory: 32GB ECC 
> 
> GPU: PowerColor Go! Green HD5450 512MB DDR2 PCIEx1. 
> 
> 
> 
> http://wiki.xen.org/wiki/VTd_HowTo 
> 
> Only devices with FLR capabilities are supported. 
> 
> 
> 
> so did the lspci -vv, this gives me the output: 
> 
> ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- 
> 
> 
> 
> FLReset not supported by my GPU. Hmm, So? Can i forget about it, and get a 
> new gpu? or are there any workarounds availble? 
> 
> 
> 
> Also i see that my motherboard + cpu is not on the supported list inhere: 
> http://wiki.xen.org/wiki/VTd_HowTo 
> 
> 
> 
> What hardware could i switch to get a working config? New motherboard, and 
> keep the cpu + memory? Only new GPU? 
> 
> 
> 
> Running on Xen 4.3 unstable on debian squeeze with custom kernel on linux 
> 3.6.1. pciback works fine. I can add all pci devices to the vm, install the 
> amd drivers without problems, but when starting the windows 7 x64 ultimate 
> machine after the install it hangs at Starting Windows. 
> 
> Any tips would be great. 
> 
> 
> _______________________________________________ 
> Xen-users mailing list 
> Xen-users@xxxxxxxxxxxxx 
> http://lists.xen.org/xen-users 



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