linux/arch/s390/Kconfig.debug
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   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