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Searched refs:perf_event_paranoid (Results 1 – 8 of 8) sorted by relevance

/linux/tools/perf/Documentation/
H A Dsecurity.txt142 Consider adjusting /proc/sys/kernel/perf_event_paranoid setting to open
145 perf_event_paranoid setting is -1:
151 To make the adjusted perf_event_paranoid setting permanent preserve it
152 in /etc/sysctl.conf (e.g. kernel.perf_event_paranoid = <setting>)
H A Dperf-list.txt239 This can be overridden by setting the kernel.perf_event_paranoid
243 /sys/kernel/tracing, even when perf_event_paranoid is in a relaxed
H A Dperf-intel-pt.txt650 (or if /proc/sys/kernel/perf_event_paranoid < 0), 128KiB for unprivileged users.
673 (or if /proc/sys/kernel/perf_event_paranoid < 0), 128KiB for unprivileged users.
834 Unless /proc/sys/kernel/perf_event_paranoid is set to -1, unprivileged users
850 Unless /proc/sys/kernel/perf_event_paranoid is set to -1, unprivileged users are
H A Dperf-stat.txt489 perf.perf_event_paranoid=-1.
/linux/tools/perf/util/
H A Dutil.c322 int perf_event_paranoid(void) in perf_event_paranoid() function
326 if (sysctl__read_int("kernel/perf_event_paranoid", &value)) in perf_event_paranoid()
342 return perf_event_paranoid() <= max_level; in perf_event_paranoid_check()
H A Dsymbol.c2464 * we also restrict when perf_event_paranoid > 1 w/o CAP_SYSLOG in symbol__read_kptr_restrict()
2466 if (perf_event_paranoid() > 1 && !cap_syslog) in symbol__read_kptr_restrict()
/linux/Documentation/admin-guide/
H A Dperf-security.rst227 is governed by perf_event_paranoid [2]_ setting:
/linux/Documentation/admin-guide/sysctl/
H A Dkernel.rst968 perf_event_paranoid chapter