Re: [patch] x86: unify/rewrite SMP TSC sync code

From: Arjan van de Ven
Date: Sat Nov 25 2006 - 12:41:44 EST

> Actually, we need to ask the CPU/System makers to provide a system wide
> timer that is independent of the given CPU. I would expect it quite simple

they exist. They're called pmtimer and hpet.
pmtimer is port io. hpet is memory mapped io.

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