tree bbd46e0a895ee6c788e043a9f3f0afc70fe35c29
parent 36c5d05adb450294ca93f41e3aeedd7d6d2d81be
author Sascha Bischoff <sascha.bischoff@arm.com> 1657100016 +0100
committer Bobby Bruce <bbruce@ucdavis.edu> 1659039772 +0000

system-arm: Fix FEAT_PAuth trapping in AArch64 bootloader

Now that we start running the bootloader at EL3, we need to setup the
SCR_EL3 register so that it doesn't trap any pointer authentication
instruction.

This is fixing the booting process of Linux kernels making use of
FEAT_PAuth

Change-Id: I08aa96908dd2c16438448f3cc3c47a1271b2dfa8
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/61069
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/61736
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>