Re: Paravirt KVM capabilities

[Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>]

On Tue, 2007-01-09 at 16:27 +0200, Avi Kivity wrote:
> Hugo Mills wrote:
> >    Does running paravirtual guests on KVM still require a
> > hardware-VM-capable processor, or will it eventually be possible to
> > run a paravirtualised Linux on an older machine (such as, say, a
> > first-generation Athlon 64)?
>
> It's also something for the Linux community in general to decide:  if we 
> want separate interfaces for paravirtualization and full virtualization 
> (lhype and kvm) or a merged interface.  I can see arguments in favor of 
> both positions.

Yeah, me too.

	Ignoring technical questions for a moment, the main issue is that lhype
doesn't have an ABI; you have to run the same(ish) kernel as guest and
host.  This is by design: I wanted it to be a platform for
experimentation and hacking, because I think we're still at that stage
with x86 Linux virtualization.

	That's not to say that I don't think we can share code, it's just
important to realize that our aims are different.

Cheers,
Rusty.



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