On Wed, Oct 11, 2017 at 03:16:47PM +0100, Catalin Marinas wrote:
> On Tue, Oct 10, 2017 at 07:38:20PM +0100, Dave P Martin wrote:
> > The EFI runtime services ABI permits calls to EFI to clobber
> > certain FPSIMD/NEON registers, as per the AArch64 procedure call
> > standard.
> >
> >
On Tue, Oct 10, 2017 at 07:38:20PM +0100, Dave P Martin wrote:
> The EFI runtime services ABI permits calls to EFI to clobber
> certain FPSIMD/NEON registers, as per the AArch64 procedure call
> standard.
>
> Saving/restoring the clobbered registers around such calls needs
> KERNEL_MODE_NEON, but