This is declared weak so that platforms that do not have smm_subregion() can provide their own implementation. Change-Id: Ide815b45cbc21a295b8e58434644e82920e84e31 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34704 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>