Jeremy Fitzhardinge wrote:
quoted text
> H. Peter Anvin wrote:
>> Not really.  In particular, I really don't want to add something that 
>> is even remotely likely to break on other platforms, and a fence 
>> instruction is relatively recent.
> 
> I wonder if a cpuid would do the trick?  Do we still support cpuid-less 
> processors?

Yes, we do.  Worst case, we could bypass it, but I'd like to understand 
what the real constraint is, here.

	-hpa
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