From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mukesh Rathor <mukesh.rathor@oracle.com>
Subject: Re: [V4 PATCH 6/7] pvh dom0: Add and remove foreign
 pages
Date: Tue, 3 Dec 2013 17:05:52 -0800
Message-ID: <20131203170552.37c6426d@mantra.us.oracle.com>
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To: Julien Grall <julien.grall@linaro.org>
Cc: Xen-devel@lists.xensource.com, Ian Campbell <Ian.Campbell@citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, george.dunlap@eu.citrix.com, tim@xen.org, keir.xen@gmail.com, JBeulich@suse.com
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On Wed, 04 Dec 2013 00:00:54 +0000
Julien Grall <julien.grall@linaro.org> wrote:

> 
> 
> On 12/03/2013 02:30 AM, Mukesh Rathor wrote:
> > In this patch, a new function, xenmem_add_foreign_to_pmap(), is
> > added
> 
> xenmem_add_foreign_to_p2m?
> 
> > to map pages from foreign guest into current dom0 for domU creation.
> > Such pages are typed p2m_map_foreign. Also, support is added here to
> > XENMEM_remove_from_physmap to remove such pages. Note, in the remove
> > path, we must release the refcount that was taken during the map
> > phase.
> 
> Your remove path is very interesting for the ARM port. For now we are 
> unable to unmap the foreign page because get_page() will always
> return NULL (as dom0 is not the owner).
> 
> I will give a try on ARM to see if it could resolve our problem.
> 

Don't know much about ARM, is the remove path failing to compile on it?
You can submit ARM modification patch after it's checked in?

thanks
mukesh