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-rw-r--r--arch/x86/Kconfig.debug14
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 7c6496e..9491c0a 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -168,20 +168,18 @@ config IOMMU_LEAK
Add a simple leak tracer to the IOMMU code. This is useful when you
are debugging a buggy device driver that leaks IOMMU mappings.
-config PAGE_FAULT_HANDLERS
- bool "Custom page fault handlers"
- depends on DEBUG_KERNEL
- help
- Allow the use of custom page fault handlers. A kernel module may
- register a function that is called on every page fault. Custom
- handlers are used by some debugging and reverse engineering tools.
+config MMIOTRACE_HOOKS
+ bool
+ default n
config MMIOTRACE
tristate "Memory mapped IO tracing"
- depends on DEBUG_KERNEL && PAGE_FAULT_HANDLERS && RELAY && DEBUG_FS
+ depends on DEBUG_KERNEL && RELAY && DEBUG_FS
+ select MMIOTRACE_HOOKS
default n
help
This will build a kernel module called mmiotrace.
+ Making this a built-in is heavily discouraged.
Mmiotrace traces Memory Mapped I/O access and is meant for debugging
and reverse engineering. The kernel module offers wrapped
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