tree 946a24a8f9e7d146b7c8d91921e149108c923736
parent 80c2e2f149074c68b4b14f6174475a1fae23d509
author Olivier Deprez <olivier.deprez@arm.com> 1667216297 +0100
committer Olivier Deprez <olivier.deprez@arm.com> 1707324361 +0100

feat(spmd): pass SMCCCv1.3 SVE hint to lower EL

A normal world caller can emit an SMC with the SVE hint bit set such
that the callee can perform an optimization by omitting to save/restore
the SVE context. Update the SPMD to pass this information to the SPMC
when set by the caller in the SMC flags parameter.
For now, restrict this behavior to the SPMC living at S-EL2.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: Icf46eb8a391dd3ddd2ee6aff8581a2f1c8a1c274