RE: pIII Serial (or lack there-of)

Jones D (djones2@glam.ac.uk)
Thu, 14 Oct 1999 09:09:34 +0100

> I was playing around with the cpuid instruction today and
> noticed newer
> versions of Linux disable the pIII serial number without any
> sort of "Yes
> I want to disable this" anywhere.. I had to go hack
> /usr/src/linux/arch/i386/kernel/setup.c :( I was wondering
> why the pIII
> serial is so dangerous we aren't even allowing the OPTION to leave it
> enabled..

A better solution would be a generic MSR interface.
I know of two that are written, one by Stefan Meyer (I think), and
another by Richard Gooch.
Stefan's uses a device, which IMHO is a little wasteful, as you
could just export things to /proc.

Richards seems to rely upon devfs, which is a shame if you
don't use devfs.

In both the implementations above, you also don't get to see
what MSRs are available.

I've got a 75% written /proc MSR interface, any interest?

regards,

Dave.

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