> > Actually, if you are doing such a check... it makes sense to check for
> > _all_ the regions, nosave or not. If e820 map changed at all, it is
> > not safe to resume.
> > Pavel
>
> Currently nosave region only called register by e820 code, so hibernate's
> nosave region included e820
> reserved, ACPI data and ACPI NVS region.
>
> I thought hashing the start/end pfn of above regions is enough.
If ammount of memory changed, for example, it is unsafe to
resume. So if you are doing the check, anyway, please hash
whole e820 table.
Pavel
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