On Tue, Oct 10, 2017 at 07:38:29PM +0100, Dave P Martin wrote: > It's desirable to be able to reset the vector length to some sane > default for new processes, since the new binary and its libraries > processes may or may not be SVE-aware. > > This patch tracks the desired post-exec vector length (if any) in a > new thread member sve_vl_onexec, and adds a new thread flag > TIF_SVE_VL_INHERIT to control whether to inherit or reset the > vector length. Currently these are inactive. Subsequent patches > will provide the capability to configure them. > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > Reviewed-by: Alex Bennée <alex.bennee@xxxxxxxxxx> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
