On Thu, Apr 15, 2021 at 11:30:12AM +0200, David Hildenbrand wrote: > > Not sure we really need a new pagetype here, PG_Reserved seems to be quite > > enough to say "don't touch this". I generally agree that we could make > > PG_Reserved a PageType and then have several sub-types for reserved memory. > > This definitely will add clarity but I'm not sure that this justifies > > amount of churn and effort required to audit uses of PageResrved(). > > > Then, we could mostly avoid having to query memblock at runtime to figure > > > out that this is special memory. This would obviously be an extension to > > > this series. Just a thought. > > > > Stop pushing memblock out of kernel! ;-) > > Can't stop. Won't stop. :D > > It's lovely for booting up a kernel until we have other data-structures in > place ;) A bit more seriously, we don't have any data structure that reliably represents physical memory layout and arch-independent fashion. memblock is probably the best starting point for eventually having one. -- Sincerely yours, Mike.
