1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds 389175cf7SHeiko Carstensconfig EARLY_PRINTK 489175cf7SHeiko Carstens def_bool y 5062e5279SHeiko Carstens 656e62a73SSven Schnelleconfig DEBUG_ENTRY 756e62a73SSven Schnelle bool "Debug low-level entry code" 856e62a73SSven Schnelle depends on DEBUG_KERNEL 9062e5279SHeiko Carstens help 1056e62a73SSven Schnelle This option enables sanity checks in s390 low-level entry code. 1156e62a73SSven Schnelle Some of these sanity checks may slow down kernel entries and 1256e62a73SSven Schnelle exits or otherwise impact performance. 13062e5279SHeiko Carstens 14062e5279SHeiko Carstens If unsure, say N. 15*a4f17cc7SVineeth Vijayan 16*a4f17cc7SVineeth Vijayanconfig CIO_INJECT 17*a4f17cc7SVineeth Vijayan bool "CIO Inject interfaces" 18*a4f17cc7SVineeth Vijayan depends on DEBUG_KERNEL && DEBUG_FS 19*a4f17cc7SVineeth Vijayan help 20*a4f17cc7SVineeth Vijayan This option provides a debugging facility to inject certain artificial events 21*a4f17cc7SVineeth Vijayan and instruction responses to the CIO layer of Linux kernel. The newly created 22*a4f17cc7SVineeth Vijayan debugfs user-interfaces will be at /sys/kernel/debug/s390/cio/* 23