Re: enhanced speed step on AMD64

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Sun, May 23, 2010 at 09:59:09PM +0000, Christos Zoulas wrote:
> That's not the problem. The EST code really needs to go because
> it is ~impossible to figure out the proper thing to do from the MSR's.

It can't go. There are a lot of slightly older systems where the ACPI
implementation is basically useless. Just because Intel decided to f**k
up and move it back to hidden magic (didn't they learn from Speedstep?)
doesn't mean the old interface doesn't work for those CPUs it applies
to.

Joerg