On Mon, 14 Aug 2017 23:13:07 +1000 Benjamin Herrenschmidt <benh@xxxxxxxxxxx> wrote: > On Mon, 2017-08-14 at 22:49 +1000, Michael Ellerman wrote: > > > - /* > > > - * We limit the allocation that depend on ppc64_rma_size > > > - * to first_memblock_size. We also clamp it to 1GB to > > > - * avoid some funky things such as RTAS bugs. > > > > That comment about RTAS is 7 years old, and I'm pretty sure it was a > > historical note when it was written. > > > > I'm inclined to drop it and if we discover new bugs with RTAS on Power9 > > then we can always put it back. > > Arent' we using a 32-bit RTAS ? (Afaik there's a 64-bit one, we just > never used it ..). In this case we need to at least clamp to 2G (no > trust RTAS doing unsigned properly). Is there any allocation not covered by RTAS_INSTANTIATE_MAX? Thanks, Nick -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
