On Mon, 2005-08-08 at 14:01 +0200, Andi Kleen wrote:
> > Some BIOSes do not lock SMM, and you *could* turn it off at the chipset
> > level.
>
> Doing so would be wasteful though. Both AMD and Intel CPUs need SMM code
> for the deeper C* sleep states.
>
Wouldn't it be useful for !CONFIG_PM? Many multimedia users run this
way because they want their machines running full speed all the time
(they need the horsepower, plus frequency scaling interferes with the
TSC based timing used by JACK ) and because ACPI has a history of
causing nasty latency blips.
Lee
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