From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Deegan <tim@xen.org>
Subject: Re: [PATCH 30/38] arm: Upgrade guest barriers to
	Outer-Shareable. Enable Protected Table Walk.
Date: Thu, 7 Jun 2012 11:20:14 +0100
Message-ID: <20120607102014.GK70339@ocelot.phlegethon.org>
References: <1338565113.17466.141.camel@zakaz.uk.xensource.com>
	<1338565207-2888-1-git-send-email-ian.campbell@citrix.com>
	<1338565207-2888-30-git-send-email-ian.campbell@citrix.com>
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To: Ian Campbell <ian.campbell@citrix.com>
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At 15:39 +0000 on 01 Jun (1338565199), Ian Campbell wrote:
> Upgrading barriers is conservative and may not be necessary.
> 
> Protected Table Walk traps stage 1 page tables which refer to device memory
> (per stage 2) using a non-device mapping. This generally indicates a guest
> error but trapping it as a fault for now helps us know if something odd is
> going on.
> 
> Signed-off-by: Ian Campbell <ian.campbell@citrix.com>

Acked-by: Tim Deegan <tim@xen.org>