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/*

 1# SPDX-License-Identifier: GPL-2.0
 2
 3config TRACE_IRQFLAGS_SUPPORT
 4	def_bool y
 5
 6config S390_PTDUMP
 7	bool "Export kernel pagetable layout to userspace via debugfs"
 8	depends on DEBUG_KERNEL
 9	select DEBUG_FS
10	help
11	  Say Y here if you want to show the kernel pagetable layout in a
12	  debugfs file. This information is only useful for kernel developers
13	  who are working in architecture specific areas of the kernel.
14	  It is probably not a good idea to enable this feature in a production
15	  kernel.
16	  If in doubt, say "N"
17
18config EARLY_PRINTK
19	def_bool y