tree 7cf3a968b81662278ee35cca4b106565103f0c7f
parent c32e3a38dde1f6b2205af1f8387b033dcd85c65b
author Govindraj Raja <govindraj.raja@arm.com> 1737500411 -0600
committer Varun Wadekar <vwadekar@nvidia.com> 1739883702 +0000

fix(cpus): workaround for Cortex-A715 erratum 3699560

Cortex-A715 erratum 3699560 that applies to all revisions <= r1p3
and is still Open.

The workaround is for EL3 software that performs context save/restore
on a change of Security state to use a value of SCR_EL3.NS when
accessing ICH_VMCR_EL2 that reflects the Security state that owns the
data being saved or restored.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-2148827/latest/

Change-Id: I183aa921b4b6f715d64eb6b70809de2566017d31
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
(cherry picked from commit 26437afde1e7c16a5a05b8c7e0bb062efe63c3cf)