tree 0a3fbec74b18aec08f3bb9af5eabd4fc685f7c3d
parent 26437afde1e7c16a5a05b8c7e0bb062efe63c3cf
author Govindraj Raja <govindraj.raja@arm.com> 1737501153 -0600
committer Govindraj Raja <govindraj.raja@arm.com> 1738612646 -0600

fix(cpus): workaround for Cortex-A720 erratum 3699561

Cortex-A720 erratum 3699561 that applies to all revisions <= r0p2
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-2439421/latest/

Change-Id: I7ea3aaf3e7bf6b4f3648f6872e505a41247b14ba
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>