On Thu, Aug 29, 2024 at 12:27:41AM +0100, Mark Brown wrote: > Add a context for the GCS state and include it in the signal context when > running on a system that supports GCS. We reuse the same flags that the > prctl() uses to specify which GCS features are enabled and also provide the > current GCS pointer. > > We do not support enabling GCS via signal return, there is a conflict > between specifying GCSPR_EL0 and allocation of a new GCS and this is not > an ancticipated use case. We also enforce GCS configuration locking on > signal return. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx> Acked-by: Yury Khrustalev <yury.khrustalev@xxxxxxx>
