linux-kernel - Re: + stupid-hack-to-make-mainline-build.patch added to -mm tree

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Message-ID: <Line.LNX.4.64.0703071304080.1851@d.namei>
Date:	Wed, 7 Mar 2007 13:11:22 -0500 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
cc:	tglx@...utronix.de,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	john stultz <johnstul@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	akpm@...ux-foundation.org
Subject: Re: + stupid-hack-to-make-mainline-build.patch added to -mm tree

On Wed, 7 Mar 2007, Jeremy Fitzhardinge wrote:

> I was very pleased when I saw the clocksource/event mechanisms go into
> the kernel because it means different hypervisors can have a clock*
> implementation to match their own particular time model/interface
> without having to clutter up the pv_ops interface, and still have a
> well-defined interface to the rest of the kernel's time infrastructure.

It seems to me that it could be useful to have a library of common virtual 
time code (entirely separate from pv_ops), to avoid re-implementing some 
apparently common requirements, such as: handling TSC frequency changes, 
stolen time accounting, synthetic programmable clockevent etc.


- James
-- 
James Morris
<jmorris@...ei.org>
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