Re: [PATCH v4 1/2] mm/memory_hotplug: Add support to accept memory during hot-add

[Kiryl Shutsemau]

On Thu, Feb 05, 2026 at 06:29:08PM +0100, David Hildenbrand (Arm) wrote:
> > Ideally, we want to know on boot:
> > 
> >   - what memory ranges are unaccepted - we have it;
> >   - what memory range can be removed or added after boot - we don't have it
> 
> The SRAT describes memory ranges where we can see hotplug memory. Is that
> too late? We calculate max_possible_pfn based on that.

The cleanest way would be to declare the ranges in EFI memory map, not
SRAT. It should be doable.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov