Intel Core2Duo mobile - how does the VID get set?

From: Brian Morrison
Date: Tue Feb 19 2008 - 09:26:48 EST


After a fair bit of Googling and reading around, I'm none the wiser about exactly how Linux 2.6.x sets the processor VID (or for that matter how it decides the FID settings) when using the ondemand governor and cpufreq stuff.

Can anyone tell me a) whether this is obtained from the BIOS, something in the MSR of the processor or elsewhere and b) whether there is an interface in /proc or /sys where one can find out what is set and modify it?

I'm not subscribed to the list so a Cc: would be appreciated, cheers!

--

Brian Morrison

bdm@xxxxxxxxxxxxx

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