Re: [Xen-devel] [PATCH] xen/arm: Implement domain_get_maximum_gpfn

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Jul 02, 2014 at 11:31:05AM +0100, Jan Beulich wrote:
> >>> On 02.07.14 at 12:19, <roger.pau@xxxxxxxxxx> 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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