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Re: [Xen-devel] Some test results on Xen 4.0 and 2.6.31 / 2.6.32 pvops k

To: Carsten Schiers <carsten@xxxxxxxxxx>
Subject: Re: [Xen-devel] Some test results on Xen 4.0 and 2.6.31 / 2.6.32 pvops kernels
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Thu, 8 Apr 2010 23:12:06 +0300
Cc: jeremy <jeremy@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "konrad.wilk" <konrad.wilk@xxxxxxxxxx>
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On Thu, Apr 08, 2010 at 09:46:58PM +0200, Carsten Schiers wrote:
> 
> PCI controller / 2nd Function? / working in xen/master-2.6.32.13, not 
> working on xen/stable-2.6.32 on Xen 3.4.1
> ------------------------------------------------------------------------
> ---------------------------------------
> 
> It will allow passthrough of all mentioned devices except one of the PCI 
> controllers. It will not be detected. Using 
> xm pci-attach will produce an error:
> 
>   troi kernel: [   23.862294] ehci_hcd 0000:00:01.1: device not 
> available because of BAR 0 [0xfc102000-0xfc1020ff] collisions
>   troi kernel: [   61.942809] ohci_hcd 0000:00:01.0: device not 
> available because of BAR 0 [0xfc104000-0xfc104fff] collisions
> 
> I first tried only with the 2nd function (or whatever it is called), but 
> as you see, we have the same error with both put into 
> the DomU.
> 

Have you seen this wiki page?:
http://wiki.xensource.com/xenwiki/XenPCIpassthrough

Try the "I get "non-page-aligned MMIO BAR" error when trying to start the 
guest" thing.. maybe it helps? 



> 
> powernow-k8 in pvops Dom0 doesn't work any longer with Xen 4.0
> --------------------------------------------------------------
> 
> I found this in the logs, not idea currently what Xen 3.4.1 with pvops 
> or Xen 4.0 with 2.6.18 kernel would say.
> 
>   data kernel: [    9.030558] powernow-k8: Found 1 AMD Athlon(tm) Dual 
> Core Processor 4050e processors (2 cpu cores) (version 2.20.00)
>   data kernel: [    9.030955] [Firmware Bug]: powernow-k8: No compatible 
> ACPI _PSS objects found.
>   data kernel: [    9.030957] [Firmware Bug]: powernow-k8: Try again 
> with latest BIOS.
> 

I think xen.git xen/stable-2.6.32.x is still missing the acpi powermanagement 
patches..

-- Pasi


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