diff options
Diffstat (limited to 'arch/s390/Kconfig.debug')
| -rw-r--r-- | arch/s390/Kconfig.debug | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug index 190527560b2c..c4300ea4abf8 100644 --- a/arch/s390/Kconfig.debug +++ b/arch/s390/Kconfig.debug @@ -1,19 +1,22 @@ # SPDX-License-Identifier: GPL-2.0 -config TRACE_IRQFLAGS_SUPPORT +config EARLY_PRINTK def_bool y -config S390_PTDUMP - bool "Export kernel pagetable layout to userspace via debugfs" +config DEBUG_ENTRY + bool "Debug low-level entry code" depends on DEBUG_KERNEL - select DEBUG_FS - ---help--- - Say Y here if you want to show the kernel pagetable layout in a - debugfs file. This information is only useful for kernel developers - who are working in architecture specific areas of the kernel. - It is probably not a good idea to enable this feature in a production - kernel. - If in doubt, say "N" + help + This option enables sanity checks in s390 low-level entry code. + Some of these sanity checks may slow down kernel entries and + exits or otherwise impact performance. -config EARLY_PRINTK - def_bool y + If unsure, say N. + +config CIO_INJECT + bool "CIO Inject interfaces" + depends on DEBUG_KERNEL && DEBUG_FS + help + This option provides a debugging facility to inject certain artificial events + and instruction responses to the CIO layer of Linux kernel. The newly created + debugfs user-interfaces will be at /sys/kernel/debug/s390/cio/* |