linux-kernel - Re: A proposal

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Message-ID: <Pine.LNX.4.63.0608041544130.18862@qynat.qvtvafvgr.pbz>
Date:	Fri, 4 Aug 2006 15:45:33 -0700 (PDT)
From:	David Lang <dlang@...italinsight.com>
To:	Arjan van de Ven <arjan@...ux.intel.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

On Fri, 4 Aug 2006, Arjan van de Ven wrote:

>> 
>> so if I understand this correctly we are saying that a kernel compiled to 
>> run on hypervisor A would need to be recompiled to run on hypervisor B, and 
>> recompiled again to run on hypervisor C, etc
>> 
> no the actual implementation of the operation structure is dynamic and can be 
> picked
> at runtime, so you can compile a kernel for A,B *and* C and at runtime the 
> kernel
> picks the one you have

Ok, I was under the impression that this sort of thing was frowned upon for 
hotpath items (which I understand a good chunk of this would be).

this still leaves the question of old client on new hypervisors that is 
continueing in other branches of this thread.

David Lang
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