[TF-A] When to implement plat_sdei_validate_entry_point?

Hi,

I'm adding basic SDEI support to the zynqmp platform (just private event 0 for now), and I'm wondering what to do with plat_sdei_validate_entry_point().

Looking around what other SDEI implementations did, neither tegra nor the recently added imx8mm implement this and rather rely on the empty stub from plat/common/aarch64/plat_common.c. As zynqmp also pulls in plat/arm/common/arm_common.c and doesn't find any arm_validate_ns_entrypoint, my search started.

Is there anything that makes the check for tegra and imx8mm unneeded? Or are they both broken and should better use plat_sdei_validate_entry_point from plat/arm/common/arm_common.c?

Thanks, Jan