13 messages in com.xensource.lists.xen-develRE: [Xen-devel] Cpufreq on k8 with xe...| From | Sent On | Attachments |
|---|---|---|
| geaaru | 25 Sep 2007 06:24 | |
| Langsdorf, Mark | 26 Sep 2007 05:35 | |
| Goswin von Brederlow | 26 Sep 2007 23:07 | |
| Langsdorf, Mark | 27 Sep 2007 08:03 | |
| geaaru | 28 Sep 2007 03:36 | |
| Langsdorf, Mark | 28 Sep 2007 05:43 | |
| geaaru | 28 Sep 2007 07:45 | |
| Langsdorf, Mark | 28 Sep 2007 09:03 | |
| geaaru | 29 Sep 2007 06:21 | |
| xeb | 30 Sep 2007 22:37 | |
| xeb | 01 Oct 2007 01:12 | |
| geaaru | 01 Oct 2007 12:40 | |
| xeb | 01 Oct 2007 12:45 |
| Subject: | RE: [Xen-devel] Cpufreq on k8 with xen dom0 |
|---|---|
| From: | Langsdorf, Mark (mark...@amd.com) |
| Date: | 09/28/2007 05:43:37 AM |
| List: | com.xensource.lists.xen-devel |
Hi, i try to use xen-unstable.hg version but doesn't work.
From dmesg i have this error:
powernow-k8: Found 1 AMD Turion(tm) 64 Mobile Technology ML-30 processors (version 2.00.00) powernow-k8: BIOS error - no PSB or ACPI _PSS objects ACPI: (supports S0 S3 S4 S5)
While, if i try to call cpufreq-info i have this output:
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006 Report errors and bugs to lin...@brodo.de, please. analyzing CPU 0: no or unknown cpufreq driver is active on this CPU
any idea how can i resolve this problem?
dom0 isn't seeing the ACPI _PSS objects (I thought the error message made that clear). No ACPI objects means no information on the pstates.
Do you get PowerNow! support on a native version 2.6.21+ kernel? If not, you need to update your BIOS to something that supports pstates (or possibly you have one of the rare Turions that doesn't support more than 1 pstate, but I doubt that).
If 2.6.21+ native works, check to see if 2.6.18 native works. If it doesn't, then there was a change to the ACPI interpreter to support your laptop that will need to be backported. If 2.6.18 native works, then there's a difference between the Xen ACPI interpreter and the native mode interpreter that will need to be ported to Xen.
-Mark Langsdorf Operating System Research Center AMD
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