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Re: [Xen-users] powernow-k8

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] powernow-k8
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Sun, 23 Dec 2007 20:27:41 +0000
Cc: "Imre K." <full_fire@xxxxxx>
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Hi Imre,

I'm afraid it's not possible to use Powernow with 3.0.2 at all.  Nor is it 
possible to use other CPU power saving technologies.

This is because supporting this is not quite so simple under Xen.  You can't 
just load a driver into dom0 Linux because Xen needs to know about PowerNow 
too.  Extra code would be required in Xen to support it.

Someone from AMD has been working on this extra code and I believe initial 
support for Powernow is going to be in the Xen 3.2 release and is currently 
in the xen-unstable tree.


On Sunday 23 December 2007, Imre K. wrote:
> Hello,
> I use debian etch and I try to use the powernow-k8 option with the
> 2.6.18 kernel. Xen 3.0.2 works fine after installing with apt-get. If i
> try to load the powernow-k8 module with modconf, I get an error message
> and can't load it.
> Can somebody help me to solve this problem.
> Greetings
> Imre
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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