Arjan van de Ven wrote:
quoted text
> 
> I'd lump all cpus that don't have cpuid in this bucket too (eg half the
> 486es) simply because not having cpuid is painful in pretty much the
> same way.
> 

Not really.  Detecting CPUID is pretty trivial, and we just initialize 
the feature vector to zero if it isn't there.

quoted text
>>  - "modern 32-bit": PPro and better. Can take CMOV, MMX and TSC for 
>>    granted.
> 
> again makes sense; question is if it makes sense to take PSE and PAE
> for granted as well (although PSE we can do runtime I suppose)

Well, PAE implies PSE.  Unfortunately Intel released a series of 
Pentium-Ms without PAE support.  We *should* be able to take PSE for 
granted, but there is Xen damage.

	-hpa
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