arm-trusted-firmware/lib/el3_runtime
Daniel Boulby 7d33ffe4c1 fix(el3-runtime): set unset pstate bits to default
During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
2022-02-03 11:33:49 +00:00
..
aarch32 feat(trf): enable trace filter control register access from lower NS EL 2021-08-26 09:32:35 +01:00
aarch64 fix(el3-runtime): set unset pstate bits to default 2022-02-03 11:33:49 +00:00
cpu_data_array.c Sanitise includes across codebase 2019-01-04 10:43:17 +00:00