Boyan Karatotev 51997e3d8a perf(cpufeat): centralise PAuth key saving ...

prepare_el3_entry() is meant to be the one-stop shop for all the context
we must fiddle with to enter EL3 proper. However, PAuth is the one
exception, happening right after. Absorb it into prepare_el3_entry(),
handling the BL1/BL31 difference.

This is a good time to also move the key saving into the enable
function, also to centralise. With this it becomes apparent that saving
keys just before CPU_SUSPEND is redundant as they will be reinitialised
when the core wakes up.

Note that the key loading, now in save_gp_pmcr_pauth_regs, does not end
in an isb.  The effects of the key change are not needed until the isb
in the caller, so this isb is not needed.

Change-Id: Idd286bea91140c106ab4c933c5c44b0bc2050ca2
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

2025-04-15 09:06:26 +01:00

..

bl1_arch_setup.c

chore(bl1): remove redundant bl1_arch_next_el_setup

2023-04-28 08:09:14 +01:00

bl1_context_mgmt.c

feat(rme): run BL2 in root world when FEAT_RME is enabled

2021-10-04 21:13:20 +02:00

bl1_entrypoint.S

feat(rme): run BL2 in root world when FEAT_RME is enabled

2021-10-04 21:13:20 +02:00

bl1_exceptions.S

perf(cpufeat): centralise PAuth key saving

2025-04-15 09:06:26 +01:00