On Fri, 22 Apr 2022 at 11:57, Peter Maydell <peter.mayd...@linaro.org> wrote: > Just because > the architecture usually defines that an _EL2 register is > RES0 if EL2 is not present doesn't mean that it does so for > every register or that it guarantees that it will continue > to do so in future. (For instance I found ZCR_EL2 and TFSR_EL2 > don't have that statement in their documentation, which might or > might not be an oversight.)
In those two cases, it probably is a documentation omission. -- PMM