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Re: [Xen-devel] Powernow-k8 support

On 11 Jun 2006, at 16:49, Christian Roessner wrote:

After booting, I get the following message in Dom0-dmesg:

powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.60.0)
powernow-k8: BIOS error - no PSB or ACPI _PSS objects

I tried to find answers in the mailing-list archive and with Google, but
could not find answers.

Is there support in Xen? Are there any patches, I can download anywhere?

Try adding cpufreq.debug=11 to your domain0 Linux kernel command line. That should get more debugging about what's going wrong. Also, what does boot output look like for native Linux? Perhaps it's possible to see where the cpufreq paths diverge for native versus running on Xen.

 -- Keir

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