linux-kernel - Re: A proposal

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Message-ID: <44D39F73.8000803@linux.intel.com>
Date:	Fri, 04 Aug 2006 12:26:43 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	David Lang <dlang@...italinsight.com>
CC:	Antonio Vargas <windenntw@...il.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Andrew Morton <akpm@...l.org>, jeremy@...source.com,
	greg@...ah.com, zach@...are.com, linux-kernel@...r.kernel.org,
	torvalds@...l.org, hch@...radead.org, jlo@...are.com,
	xen-devel@...ts.xensource.com, simon@...source.com,
	ian.pratt@...source.com, jeremy@...p.org
Subject: Re: A proposal - binary

David Lang wrote:
> I'm not commenting on any of the specifics of the interface calls (I 
> trust you guys to make that be sane :-) I'm just responding the the idea 
> that the interface actually needs to be locked down to an ABI as opposed 
> to just source-level compatability.

you are right that the interface to the HV should be stable. But those are going
to be specific to the HV, the paravirt_ops allows the kernel to smoothly deal
with having different HV's.
So in a way it's an API interface to allow the kernel to deal with multiple
different ABIs that exist today and will in the future.
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