Re: [RFC] CPUID usage for interaction between Hypervisors and Linux.

[Jeremy Fitzhardinge]

Alok Kataria wrote:
> Its not a user who has to do anything special here.
> There are *intelligent* VM developers out there who can export a
> different CPUid interface depending on the guest OS type. And this is
> what most of the hypervisors do (not necessarily for CPUID, but for
> other things right now).
>   

No, that's always a terrible idea.  Sure, its necessary to deal with 
some backward-compatibility issues, but we should even consider a new 
interface which assumes this kind of thing.  We want properly enumerable 
interfaces.

   J
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