From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: [PATCH] xen/arm: Implement domain_get_maximum_gpfn
Date: Wed, 2 Jul 2014 09:44:30 -0400
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To: Jan Beulich <JBeulich@suse.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>, Julien Grall <julien.grall@linaro.org>, Tim Deegan <tim@xen.org>, Stefano Stabellini <stefano.stabellini@citrix.com>, xen-devel@lists.xenproject.org, Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com>
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On Wed, Jul 02, 2014 at 11:31:05AM +0100, Jan Beulich wrote:
> >>> On 02.07.14 at 12:19, <roger.pau@citrix.com> wrote:
> > For PVH guests there's still no MMIO hole (or any other kind of hole) at
> > all, the hole(s) is only there for Dom0.
> 
> So where would passed through devices get their MMIO BARs located?

If it ends up uisng 'e820_host' the E820 that the guest has
ends up looking like the hosts. At that point the memory
map looks quite similar to the dom0 one - and the MMIO
BARs should fit in nicely.

> (I realize pass-through isn't supported yet for PVH, but I didn't expect
> such fundamental things to be missing.)
> 
> Jan
> 
> 
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