linux-kernel - Re: [patch 00/21] Xen-paravirt: Xen guest implementation for paravirt

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Date:	Sat, 17 Feb 2007 15:58:18 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Christoph Lameter <clameter@....com>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Chris Wright <chrisw@...s-sol.org>, Andi Kleen <ak@....de>,
	xen-devel@...ts.xensource.com, virtualization@...ts.osdl.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [patch 00/21] Xen-paravirt: Xen guest implementation for
	paravirt_ops interface

On Fri, 2007-02-16 at 12:49 -0800, Christoph Lameter wrote:
> On Thu, 15 Feb 2007, Jeremy Fitzhardinge wrote:
> 
> > This patch series implements the Linux Xen guest in terms of the
> > paravirt-ops interface.  The features in implemented this patch series
> 
> I am thoroughly confused. Maybe that is because I have not been following 
> this issue closely but it seems that you are using the paravirt interface 
> as an API for Xen code in the guest? I thought the idea of paravirt was to 
> have an API that is generic? This patchset seems to be mostly realizing 
> Xen specific functionality? How does the code here interact with KVM, 
> VMWare and other hypervisors?

It doesn't.  Paravirt_ops provides the hooks.  KVM, lguest, VMI and Xen
all need to implement what they want on top of them.

Hope that clarifies,
Rusty.

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