tree 17e43b9ccd145de19346fb57cc2544e2d3005e9c
parent 0628fe3fff7f66c92a5ae0a545996bc3f3daba82
author Subhasish Ghosh <subhasish.ghosh@arm.com> 1639064497 +0000
committer Subhasish Ghosh <subhasish.ghosh@arm.com> 1639065415 +0000

fix(rmmd/sve): enable/disable SVE/FPU for Realms

This patch enable/disable SVE/FPU for Realms depending
upon it's state in NS.

When this feature is enabled, traps to EL3 on SVE/FPU access from
Realms are disabled. However, RMM must ensure that the Realm <-> NS
SVE/FPU registers are not corrupted by each other and Realms do
not leak information to NS.

Change-Id: I0a27a055787976507017b72879ba6458f066624e
Signed-off-by: Subhasish Ghosh <subhasish.ghosh@arm.com>