On Tue, Oct 10, 2017 at 07:38:34PM +0100, Dave P Martin wrote: > Kernel-mode NEON will corrupt the SVE vector registers, due to the > way they alias the FPSIMD vector registers in the hardware. > > This patch ensures that any live SVE register content for the task > is saved by kernel_neon_begin(). The data will be restored in the > usual way on return to userspace. > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > Reviewed-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > Reviewed-by: Alex Bennée <alex.bennee@xxxxxxxxxx> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
