On Mon, 16 Mar 2020, Michal Hocko wrote: > > We can dynamically number the nodes right? So just make sure that the > > firmware properly creates memory on node 0? > > Are you suggesting that the OS would renumber NUMA nodes coming > from FW just to satisfy node 0 existence? If yes then I believe this is > really a bad idea because it would make HW/LPAR configuration matching > to the resulting memory layout really hard to follow. NUMA nodes are created by the OS based on information provided by the firmware. Either the FW would need to ensure that a viable node 0 exists or the bootstrap arch code could setup things to the same effect.
