Re: [PATCH V5 4/4] kvm: add a check if pfn is from NVDIMM pmem.

[David Hildenbrand]

On 21/09/2018 20:17, Dan Williams wrote:
> On Fri, Sep 21, 2018 at 7:24 AM David Hildenbrand <david@xxxxxxxxxx> wrote:
> [..]
>>> Remove the PageReserved flag sounds more reasonable.
>>> And Could we still have a flag to identify it is a device private memory, or
>>> 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
> saveable_page().
> 

Indeed, that sounds like the easiest solution - guess that answer was
too easy for me to figure out :) .

-- 

Thanks,

David / dhildenb