linux-kernel - Re: [kvm-devel] [PATCH] export notifier #1

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Message-ID: <20080123123447.GI26420@sgi.com>
Date:	Wed, 23 Jan 2008 06:34:47 -0600
From:	Robin Holt <holt@....com>
To:	Andrea Arcangeli <andrea@...ranet.com>
Cc:	Robin Holt <holt@....com>, Avi Kivity <avi@...ranet.com>,
	Christoph Lameter <clameter@....com>,
	Izik Eidus <izike@...ranet.com>, Andrew Morton <akpm@...l.org>,
	Nick Piggin <npiggin@...e.de>, kvm-devel@...ts.sourceforge.net,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	steiner@....com, linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	daniel.blueman@...drics.com, Hugh Dickins <hugh@...itas.com>
Subject: Re: [kvm-devel] [PATCH] export notifier #1

> Why don't you stick to mm+va and use get_user_pages and let the VM do
> the swapins etc...?

Our concern is also with memory protections for the physical page.
Additionally, we need to support exporting of memory in a VM_PFNMAP
address ranges (specifically, memory mapped using sgi_fetchop, uncached
or cached mspec devices).

Thanks,
Robin
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