From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julien Grall <julien.grall@linaro.org>
Subject: Re: [PATCH for-4.5 v3 3/3] xen: arm: Enable physical
 address space compression (PDX) on arm
Date: Thu, 18 Sep 2014 12:21:25 -0700
Message-ID: <541B30B5.8010904@linaro.org>
References: <1410988836.23505.65.camel@citrix.com>
	<1410988863-15238-3-git-send-email-ian.campbell@citrix.com>
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To: Ian Campbell <ian.campbell@citrix.com>, xen-devel@lists.xen.org
Cc: Roy Franz <roy.franz@linaro.org>, tim@xen.org, Fu Wei <fu.wei@linaro.org>, Jan Beulich <JBeulich@suse.com>, stefano.stabellini@eu.citrix.com
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Hi Ian,

On 17/09/14 14:21, Ian Campbell wrote:
> This allows us to support sparse physical address maps which we previously
> could not because the frametable would end up taking up an enormous fraction
> of RAM.
>
> On a fast model which has RAM at 0x80000000-0x100000000 and
> 0x880000000-0x900000000 this reduces the size of the frametable from
> 478M to 84M.
>
> Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Julien Grall <julien.grall@linaro.org>

Regards,

-- 
Julien Grall