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author | James Clark <[email protected]> | 2024-08-27 15:51:12 +0100 |
---|---|---|
committer | Will Deacon <[email protected]> | 2024-08-30 11:42:24 +0100 |
commit | 5e9629d0ae977d6f6916d7e519724804e95f0b07 (patch) | |
tree | 028b0200bf011db01e3ff13e711acdba4b8fe98d /tools/testing/selftests/bpf/progs/test_autoload.c | |
parent | db9e7a83d30821ba50a84e9726099946900abde8 (diff) |
drivers/perf: arm_spe: Use perf_allow_kernel() for permissions
Use perf_allow_kernel() for 'pa_enable' (physical addresses),
'pct_enable' (physical timestamps) and context IDs. This means that
perf_event_paranoid is now taken into account and LSM hooks can be used,
which is more consistent with other perf_event_open calls. For example
PERF_SAMPLE_PHYS_ADDR uses perf_allow_kernel() rather than just
perfmon_capable().
This also indirectly fixes the following error message which is
misleading because perf_event_paranoid is not taken into account by
perfmon_capable():
$ perf record -e arm_spe/pa_enable/
Error:
Access to performance monitoring and observability operations is
limited. Consider adjusting /proc/sys/kernel/perf_event_paranoid
setting ...
Suggested-by: Al Grant <[email protected]>
Signed-off-by: James Clark <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions