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authorMarkus Metzger <markus.t.metzger@intel.com>2009-03-13 10:45:07 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-13 11:57:20 +0100
commit8a327f6d1b05f5ce16572b4413a5df1d0e872283 (patch)
tree7903a0b4725bea86dba942003d5f6048077271d0 /arch/x86/Kconfig.debug
parentbc44fb5f7d3e764ed7698c835a1a0f35aba2eb3d (diff)
downloadlinux-8a327f6d1b05f5ce16572b4413a5df1d0e872283.tar.gz
x86, bts: add selftest for BTS
Perform a selftest of branch trace store when a cpu is initialized. WARN and disable branch trace store support if the selftest fails. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090313104507.A30125@sedona.ch.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r--arch/x86/Kconfig.debug9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index fdb45df608b..dfd74abc03f 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -175,6 +175,15 @@ 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 X86_DS_SELFTEST
+ bool "DS selftest"
+ default y
+ depends on DEBUG_KERNEL
+ depends on X86_DS
+ ---help---
+ Perform Debug Store selftests at boot time.
+ If in doubt, say "N".
+
config HAVE_MMIOTRACE_SUPPORT
def_bool y