On Wed, Aug 03, 2022 at 05:44:16PM +0200, Michal Hocko wrote: > Unfortunately generic kernels cannot really know there is any > crippled device without some code to some checking early boot (and I am > not even sure this would be sufficient). But we can know if we need the pool, which is only when AMD SEV is enabled. So we could add a check and skip allocating all the pools including the GFP_DMA32 and GFP_KERNEL ones. I can look into that.
