1# SPDX-License-Identifier: GPL-2.0 2 3config EARLY_PRINTK 4 def_bool y 5 6config DEBUG_ENTRY 7 bool "Debug low-level entry code" 8 depends on DEBUG_KERNEL 9 help 10 This option enables sanity checks in s390 low-level entry code. 11 Some of these sanity checks may slow down kernel entries and 12 exits or otherwise impact performance. 13 14 If unsure, say N. 15 16config CIO_INJECT 17 bool "CIO Inject interfaces" 18 depends on DEBUG_KERNEL && DEBUG_FS 19 help 20 This option provides a debugging facility to inject certain artificial events 21 and instruction responses to the CIO layer of Linux kernel. The newly created 22 debugfs user-interfaces will be at /sys/kernel/debug/s390/cio/* 23