On Mon, 4 Nov 2024 at 17:09, Eric Auger <eric.au...@redhat.com> wrote: > Was just wondering if all the writable ID reg fields were associated to > an official FEAT_ listed in this feature list. > Let's take for instance CTR_EL0.DIC. Is it associated to a given > extension or is it just implementation defined?
CTR_EL0.DIC is IMPDEF choice of 0 or 1. There's no associated FEAT_* -- as an implementation, you are effectively just reporting here what your implementation's properties are. (CTR_EL0 is not an ID register in the architectural sense.) thanks -- PMM
