tree 01d04927334a9a8870adb37ff47059c5f448223b
parent 0e8e0c3e827a589902d79db546cb2c6610eee5fb
author Andre Przywara <andre.przywara@arm.com> 1644578978 +0000
committer Tom Rini <trini@konsulko.com> 1646247569 -0500

armv8: Simplify switch_el macro

The switch_el macro is a neat contraption to handle cases where we need
different code depending on the current exception level, but its
implementation was longer than needed.

Simplify it by doing just one comparison, then using the different
condition codes to branch to the desired target. PState.CurrentEL just
holds two bits, and since we don't care about EL0, we can use >, =, < to
select EL3, EL2 and EL1, respectively.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>