Re: [patch] SMP alternatives

["H. Peter Anvin" <hpa@zytor.com>]

Zachary Amsden wrote:
> You need a way to type the lock semantics by memory region, and a 
> working hardware solution can not perform as well as a careful software 
> solution.  As was pointed out earlier, you can't use memory type 
> attributes to infer lock semantics, you must assume them in the decoder 
> or implement complex deadlock detection and recovery in silicon.

Sure you can.  You just have to be prepared to take a microop exception 
if you speculate incorrectly.

	-hpa
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