Re: [RFC] [PATCH] x86: Use ELF section to list CPU vendor specificcode (Linux Tiny)

From: Ingo Molnar
Date: Sun Feb 17 2008 - 13:15:14 EST



* Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> wrote:

> Le Mon, 11 Feb 2008 16:54:30 -0800,
> "H. Peter Anvin" <hpa@xxxxxxxxx> a écrit :
>
> > b) would be my first choice, and yes, it would be a good thing to
> > have a generalized mechanism for this. For the registrant, it's
> > pretty easy: just add a macro that adds a pointer to a named
> > section. We then need a way to get the base address and length of
> > each such section in order to be able to execute each function in
> > sequence.
>
> You'll find below a tentative patch that implements this. Tuple
> (vendor, pointer to cpu_dev structure) are stored in a
> x86cpuvendor.init section of the kernel, which is then read by the
> generic CPU code in arch/x86/kernel/cpu/common.c to fill the
> cpu_devs[] function.

thanks, i've picked this up into x86.git. It all looks much cleaner and
much more maintainable now. Peter, any objections?

Ingo
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