Re: [Xen-devel] [PATCH v2 1/2] x86/dom0: rename paging function

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Thu, Dec 13, 2018 at 12:45:07AM -0700, Jan Beulich wrote:
> >>> On 12.12.18 at 18:05, <roger.pau@xxxxxxxxxx> wrote:
> > On Wed, Dec 12, 2018 at 09:15:09AM -0700, Jan Beulich wrote:
> >> The MMIO side of things of course still remains unclear.
> > 
> > Right, for the MMIO and the handling of grant and foreign mappings it's
> > not clear how we want to proceed.
> > 
> > Maybe account for all host RAM (total_pages) plus MMIO BARs?
> 
> Well, I thought we've already settled on it being impossible to
> account for all MMIO BARs at this point.

Well, I could iterate over all the registered PCI devices and size
the BARs (without VF BARs at least initially). This is quite
cumbersome, my other option would be using max_page and hope that
there are enough holes to make up for BAR MMIO regions.

Thanks, Roger.

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