Re: [RFC PATCH 0/6] Remove device private pages from physical address space

David Hildenbrand (Red Hat)
2025-11-28T07:41:00Z

On 11/28/25 05:41, Jordan Niethe wrote:
> Today, when creating these device private struct pages, the first step
> is to use request_free_mem_region() to get a range of physical address
> space large enough to represent the devices memory. This allocated
> physical address range is then remapped as device private memory using
> memremap_pages.

Just a note that as we are finishing the old release and are about to
start the merge window (+ there is Thanksgiving), expect few replies to
non-urgent stuff in the next weeks.

Having that said, the proposal is interesting. I recall that Alistair
and Jason recently discussed removing the need of dealing with PFNs
completely for device-private.

Is that the result of these discussions?

--
Cheers

David