On Wed, Apr 24, 2019 at 04:20:02PM +0530, Anshuman Khandual wrote: > > > On 04/24/2019 03:58 PM, Mike Rapoport wrote: > > +To use vmemmap, an architecture has to reserve a range of virtual > > +addresses that will map the physical pages containing the memory > > +map. and make sure that `vmemmap` points to that range. In addition, > > +the architecture should implement :c:func:`vmemmap_populate` method > > +that will allocate the physical memory and create page tables for the > > +virtual memory map. If an architecture does not have any special > > +requirements for the vmemmap mappings, it can use default > > +:c:func:`vmemmap_populate_basepages` provided by the generic memory > > +management. > > Just to complete it, could you also include struct vmem_altmap and how it > can contribute towards the physical backing for vmemmap virtual mapping. > Otherwise the write up looks complete. Sure, but I'd prefer having it as a separate patch. -- Sincerely yours, Mike.
