Re: [Xen-users] VT/IVT enabled xen version

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> So for VT mode there is no VT CPU support (intel vanderpool or amd
> pacifica) necessary?

Unfortunately, yes, you do need a VT CPU.

> Afaik such processors are not available yet?

They do exist but they're not available to buy ;-)  We have a number of them 
in Cambridge.  People from Intel are writing the VT code themselves.

> I read  
> something like "for VT to work the CPU has to support a mode called VMX
> or 'ring -1'" - whatever that means ...

VT adds an "root mode" and a "non root" mode to the usual 4 rings.  "Ring -1" 
is basically root mode ring 0, which is what the hypervisor runs in.

Cheers,
Mark

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