From: Borislav Petkov <[email protected]> ... for MCEs collection.
Signed-off-by: Borislav Petkov <[email protected]> --- arch/x86/kernel/cpu/mcheck/mce.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 7bc126346ace..4f44991b38b5 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1987,6 +1987,31 @@ int __init mcheck_init(void) return 0; } +static struct perf_event_attr pattr = { + .type = PERF_TYPE_TRACEPOINT, + .size = sizeof(pattr), + .sample_type = PERF_SAMPLE_RAW, + .persistent = 1, +}; + +int __init mcheck_init_tp(void) +{ + + pattr.config = event_mce_record.event.type; + pattr.sample_period = 1; + pattr.wakeup_events = 1; + + if (perf_add_persistent_event(&pattr, 4)) + pr_err("Error adding MCE persistent event.\n"); + + return 0; +} +/* + * We can't run earlier because persistent events uses anon_inode_getfile and + * its anon_inode_mnt gets initialized as a fs_initcall. + */ +fs_initcall_sync(mcheck_init_tp); + /* * mce_syscore: PM support */ -- 1.8.1.3.535.ga923c31 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
