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[Xen-users] cpu frequency scaling in domUs

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Vahid Kazempour" <kazempour@xxxxxxxxx>
  • Date: Thu, 24 Jul 2008 17:41:45 -0700
  • Delivery-date: Thu, 24 Jul 2008 17:42:22 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>
Hi,

I've recently installed xen-3.2.1 on my AMD Sempron(tm) machine.
It runs gentoo 2.6.21 as dom0 and cpu frequency scaling works in dom0.
But inside a domU, cpu frequency scaling is not working.
By checking the boot log in domU I found that domU is unable to load the powernow driver:
"powernow-k8: BIOS error - no PSB or ACPI _PSS objects"
I wonder if it is possible to have cpu frequency scaling support inside domUs?

--
Vahid
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