Re: [Xen-devel] Re: x86_64 progress?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

> Keir Fraser wrote:
> > We will only (at least initially) support 64-bit paravirtual guests
> > on 64-bit Xen. Of course you can run 32-bit apps over the 64-bit
> > guest OS using the existing compatibility layer.
> 
> Right.
> 
> > We will also probably support 32-bit unmodified guests running in
> > fully virtualised mode on Xen64.
> 
> Err... 32-bit unmodified guests? Fully virtualized? Would this be with
> the upcoming VT-extensions or would this be possible on any AMD64
> available today? Or does Xen64 mean Xen on IA-64 (ie. Itanium etc.)?

By Xen64 I mean Xen on x86/64. Full virtualisation will indeed require
technology such as Intel VT or AMD Pacifica. 

 -- Keir


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