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

[Jeremy Fitzhardinge]

H. Peter Anvin wrote:
> Jeremy Fitzhardinge wrote:
> > No, we're not getting anywhere.  This is an outright broken idea.  
> > The space is too small to be able to chop up in this way, and the 
> > number of vendors too large to be able to do it without having a 
> > central oversight.
>
> I suspect we can get a larger number space if we ask Intel & AMD.  In 
> fact, I think we should request that the entire 0x40xxxxxx numberspace 
> is assigned to virtualization *anyway*.

Yes, that would be good.  In that case I'd revise my proposal to back 
each leaf block 256 leaves instead of 16.  But it still needs to be a 
proper enumeration with signatures, rather than assigning fixed points 
in that space to specific interfaces.

   J
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