| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | |
| Heiko Carstens | 89175cf | 2017-01-11 09:14:52 +0100 | [diff] [blame] | 3 | config EARLY_PRINTK |
| 4 | def_bool y |
| Heiko Carstens | 062e527 | 2020-11-16 08:06:41 +0100 | [diff] [blame] | 5 | |
| Sven Schnelle | 56e62a7 | 2020-11-21 11:14:56 +0100 | [diff] [blame] | 6 | config DEBUG_ENTRY |
| 7 | bool "Debug low-level entry code" |
| 8 | depends on DEBUG_KERNEL |
| Heiko Carstens | 062e527 | 2020-11-16 08:06:41 +0100 | [diff] [blame] | 9 | help |
| Sven Schnelle | 56e62a7 | 2020-11-21 11:14:56 +0100 | [diff] [blame] | 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. |
| Heiko Carstens | 062e527 | 2020-11-16 08:06:41 +0100 | [diff] [blame] | 13 | |
| 14 | If unsure, say N. |
| Vineeth Vijayan | a4f17cc | 2021-02-07 20:40:58 +0100 | [diff] [blame] | 15 | |
| 16 | config 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/* |