linux-kernel - Re: Frontswap [PATCH 0/4] (was Transcendent Memory): overview

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Message-ID: <4BD6348A.5010602@goop.org>
Date:	Mon, 26 Apr 2010 17:49:14 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Avi Kivity <avi@...hat.com>
CC:	Dan Magenheimer <dan.magenheimer@...cle.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	hugh.dickins@...cali.co.uk, ngupta@...are.org, JBeulich@...ell.com,
	chris.mason@...cle.com, kurt.hackel@...cle.com,
	dave.mccracken@...cle.com, npiggin@...e.de,
	akpm@...ux-foundation.org, riel@...hat.com
Subject: Re: Frontswap [PATCH 0/4] (was Transcendent Memory): overview

On 04/25/2010 05:11 AM, Avi Kivity wrote:
> No need to change the kernel at all; the hypervisor controls the page
> tables.

Not in Xen PV guests (the hypervisor vets guest updates, but it can't
safely make its own changes to the pagetables).  (Its kind of annoying.)

    J
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