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

 1menu "Kernel hacking"
 2
 3config TRACE_IRQFLAGS_SUPPORT
 4	def_bool y
 5
 6source "lib/Kconfig.debug"
 7
 8config STRICT_DEVMEM
 9	def_bool y
10	prompt "Filter access to /dev/mem"
11	---help---
12	  This option restricts access to /dev/mem.  If this option is
13	  disabled, you allow userspace access to all memory, including
14	  kernel and userspace memory. Accidental memory access is likely
15	  to be disastrous.
16	  Memory access is required for experts who want to debug the kernel.
17
18	  If you are unsure, say Y.
19
20config S390_PTDUMP
21	bool "Export kernel pagetable layout to userspace via debugfs"
22	depends on DEBUG_KERNEL
23	select DEBUG_FS
24	---help---
25	  Say Y here if you want to show the kernel pagetable layout in a
26	  debugfs file. This information is only useful for kernel developers
27	  who are working in architecture specific areas of the kernel.
28	  It is probably not a good idea to enable this feature in a production
29	  kernel.
30	  If in doubt, say "N"
31
32config DEBUG_SET_MODULE_RONX
33	def_bool y
34	depends on MODULES
35endmenu