Hi, > There is a similar issue being worked on w.r.t pseries. > > https://lkml.kernel.org/r/1502357028-27465-1-git-send-email-bhar...@linux.vnet.ibm.com > > The question is should we map these regions ? ie, we need to tell the > kernel memory region that we would like to hot unplug later so that > we avoid doing kernel allocations from that. If we do that, then we > can possibly map them via 2M size ?
But all of memory on PowerNV should be able to be hot unplugged, so there are two options as I see it - either increase the memory block size, or map everything with 2MB pages. Anton
