On 7/25/19 8:57 AM, Alex Bennée wrote: > > Richard Henderson <richard.hender...@linaro.org> writes: > >> Prepare for, but do not yet implement, the EL2&0 regime and the >> Secure EL2 regime. Rename all of the a-profile symbols to make >> the distictions clearer. > > Perhaps a summary of the renames would be useful here? My head is > spinning a little given the number that we have and not being familiar > with the naming convention. > > ARMMMUIdx[_StageN]_[M][S]Enn[_nn] > > _StageN - stage N only, otherwise assumed 1+2 lookup?
How about "full", since most of the indicies only have a single stage lookup. > M - M profile (interleaved with A profile) > S - Secure > Enn - visible exception level, so E02 is shared EL0 and EL2? > _nn - not sure? > > The cpu.h comment is very detailed but doesn't actually give me enough > information to decode an ARMMMUIdx when I come across it in the code. I have wondered if it was worth going back and splitting this patch so that we do exactly one rename at at time. It would mean 9 of these patches... r~
