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Diffstat (limited to 'arch/x86_64/Kconfig.debug')
-rw-r--r-- | arch/x86_64/Kconfig.debug | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug new file mode 100644 index 000000000000..9cf1410d2f5a --- /dev/null +++ b/arch/x86_64/Kconfig.debug | |||
@@ -0,0 +1,57 @@ | |||
1 | menu "Kernel hacking" | ||
2 | |||
3 | source "lib/Kconfig.debug" | ||
4 | |||
5 | # !SMP for now because the context switch early causes GPF in segment reloading | ||
6 | # and the GS base checking does the wrong thing then, causing a hang. | ||
7 | config CHECKING | ||
8 | bool "Additional run-time checks" | ||
9 | depends on DEBUG_KERNEL && !SMP | ||
10 | help | ||
11 | Enables some internal consistency checks for kernel debugging. | ||
12 | You should normally say N. | ||
13 | |||
14 | config INIT_DEBUG | ||
15 | bool "Debug __init statements" | ||
16 | depends on DEBUG_KERNEL | ||
17 | help | ||
18 | Fill __init and __initdata at the end of boot. This helps debugging | ||
19 | illegal uses of __init and __initdata after initialization. | ||
20 | |||
21 | config IOMMU_DEBUG | ||
22 | depends on GART_IOMMU && DEBUG_KERNEL | ||
23 | bool "Enable IOMMU debugging" | ||
24 | help | ||
25 | Force the IOMMU to on even when you have less than 4GB of | ||
26 | memory and add debugging code. On overflow always panic. And | ||
27 | allow to enable IOMMU leak tracing. Can be disabled at boot | ||
28 | time with iommu=noforce. This will also enable scatter gather | ||
29 | list merging. Currently not recommended for production | ||
30 | code. When you use it make sure you have a big enough | ||
31 | IOMMU/AGP aperture. Most of the options enabled by this can | ||
32 | be set more finegrained using the iommu= command line | ||
33 | options. See Documentation/x86_64/boot-options.txt for more | ||
34 | details. | ||
35 | |||
36 | config KPROBES | ||
37 | bool "Kprobes" | ||
38 | depends on DEBUG_KERNEL | ||
39 | help | ||
40 | Kprobes allows you to trap at almost any kernel address and | ||
41 | execute a callback function. register_kprobe() establishes | ||
42 | a probepoint and specifies the callback. Kprobes is useful | ||
43 | for kernel debugging, non-intrusive instrumentation and testing. | ||
44 | If in doubt, say "N". | ||
45 | |||
46 | config IOMMU_LEAK | ||
47 | bool "IOMMU leak tracing" | ||
48 | depends on DEBUG_KERNEL | ||
49 | depends on IOMMU_DEBUG | ||
50 | help | ||
51 | Add a simple leak tracer to the IOMMU code. This is useful when you | ||
52 | are debugging a buggy device driver that leaks IOMMU mappings. | ||
53 | |||
54 | #config X86_REMOTE_DEBUG | ||
55 | # bool "kgdb debugging stub" | ||
56 | |||
57 | endmenu | ||