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Re: [Qemu-devel] QEMU Alpha target

From: Paul Brook
Subject: Re: [Qemu-devel] QEMU Alpha target
Date: Thu, 29 Mar 2007 16:25:51 +0100
User-agent: KMail/1.9.5

On Thursday 29 March 2007 16:12, Stuart Brady wrote:
> On Thu, Mar 29, 2007 at 04:08:25PM +0100, Paul Brook wrote:
> > > There do seem to be a few people who'd like Alpha emulation for QEMU.
> > > Obviously, you'd want to get dynamic translation working first. :-)
> > >
> > > OTOH, I'm now wondering which archs can support full virtualisation.
> >
> > Depends how you define "full virtualization". If you call kqemu full
> > virtualization then you can do that on pretty much any CPU.
> I meant "meeting Popek and Goldberg's virtualisation requirements".

In that case, I suspect most of them don't.
x86 certainly doesn't. Recent VT/SVM extensions bring it close, but there are 
still problems.
PPC and SPARC also have hypervisor extensions, which suggests the conventional 
instruction sets don't allow full virtualization.


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