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[Xen-devel] Re: A proposal - binary

To: David Lang <dlang@xxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: A proposal - binary
From: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Date: Fri, 04 Aug 2006 12:26:43 -0700
Cc: Andrew Morton <akpm@xxxxxxxx>, zach@xxxxxxxxxx, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, jeremy@xxxxxxxxxxxxx, simon@xxxxxxxxxxxxx, jlo@xxxxxxxxxx, greg@xxxxxxxxx, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, Antonio Vargas <windenntw@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, hch@xxxxxxxxxxxxx, ian.pratt@xxxxxxxxxxxxx, torvalds@xxxxxxxx
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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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