On 2018-09-21 at 21:29 David Hildenbrand <david(a)redhat.com> wrote:
On 21/09/2018 20:17, Dan Williams wrote:
> On Fri, Sep 21, 2018 at 7:24 AM David Hildenbrand <david(a)redhat.com> wrote:
>>> Remove the PageReserved flag sounds more reasonable.
>>> And Could we still have a flag to identify it is a device private memory,
>>> where these pages coming from?
>> We could use a page type for that or what you proposed. (as I said, we
>> might have to change hibernation code to skip the pages once we drop the
>> reserved flag).
> I think it would be reasonable to reject all ZONE_DEVICE pages in
Indeed, that sounds like the easiest solution - guess that answer was
too easy for me to figure out :) .
Just to follow-up, is the plan to clear PageReserved for nvdimm pages
instead of the approach taken in this patch set? Or should we special
case nvdimm/dax pages in kvm_is_reserved_pfn()?