Re: [patch]K6-2/K-III compile option

Philipp Rumpf (prumpf@suse.de)
Fri, 1 Oct 1999 21:11:38 +0200

> > So now we are doing this (this meaning patching instructions when the kernel
> > is loaded), shouldn't we do it for KNI support too ?
>
> I'm just nopping an instruction not doing clever patching. The idea is the
> kernel still boots on any MMX box, not that it switches to the optimal
> code

that's not what I meant. Currently (unless this changed recently), there is
no way to have a kernel that boots both on older machines (that do not support
fxsave / fxrestor) and on newer machines while using fxsave on newer ones.
Not using fxsave means userspace cannot use KNI.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/