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

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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().



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