On Mon, Feb 07, 2022 at 03:20:52PM +0000, Mark Brown wrote: > The ZA array can be read and written with the NT_ARM_ZA. Similarly to > our interface for the SVE vector registers the regset consists of a > header with information on the current vector length followed by an > optional register data payload, represented as for signals as a series > of horizontal vectors from 0 to VL/8 in the endianness independent > format used for vectors. > > On get if ZA is enabled then register data will be provided, otherwise > it will be omitted. On set if register data is provided then ZA is > enabled and initialized using the provided data, otherwise it is > disabled. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> The patch looks fine to be but I'd like Luis to look at the ptrace ABI in this series. Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>