From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: Fail to start Dom0 in ARM highmem.
Date: Thu, 30 Oct 2014 10:07:42 +0000
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To: Andrii Anisov <andrii.anisov@globallogic.com>
Cc: Iurii Konovalenko <iurii.konovalenko@globallogic.com>, Julien Grall <julien.grall@linaro.org>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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On Wed, 2014-10-29 at 19:35 +0200, Andrii Anisov wrote:
> > Xen 4.5 ought to use multiple banks to give as much RAM below 4G as it
> > can and then satisfy the rest from highmem. It would be interesting to
> > see how it behaves in this setup.
> 
> We did just the first attempt with our 4.4 as well know stuff.
> We will go with 4.5 further.

Good plan.

If you wanted to stick with 4.4 my recommendation would be to either use
less RAM for dom0 or to add some sort of ugly hack to split the RAM into
two banks (e.g. 0.5G in each, one low one high).

Ian.