8a327f6d1b
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>
16 lines
392 B
C
16 lines
392 B
C
/*
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* Debug Store support - selftest
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*
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*
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* Copyright (C) 2009 Intel Corporation.
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* Markus Metzger <markus.t.metzger@intel.com>, 2009
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*/
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#ifdef CONFIG_X86_DS_SELFTEST
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extern int ds_selftest_bts(void);
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extern int ds_selftest_pebs(void);
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#else
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static inline int ds_selftest_bts(void) { return 0; }
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static inline int ds_selftest_pebs(void) { return 0; }
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#endif /* CONFIG_X86_DS_SELFTEST */
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