If an exception is taken that the secmon won't return
to, there needs to be way to reset that cpu's state
w.r.t. stack usage. Therefore, provide secmon_trampoline
which will reinitialize the exception stack and SP_EL0
and start executing with SP_EL0 like the initial state
of the secmon entry.
BUG=chrome-os-partner:30785
BRANCH=None
TEST=Built and booted to kernel. Also tested when PSCI
is employed in the kernel.
Change-Id: Ie9f5bbe715dcbcf8b67ea40f9a3a5088ac7aa2ad
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: f1f546ee3e9eca93baaa1ae0437351205bf548a5
Original-Change-Id: Ia3da75e1fa0251c8ea30eb0b0523c8a51c03b917
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/218922
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9096
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
93eea8822d