2022-04-22 22:37:50

by Timothy Hayes

[permalink] [raw]
Subject: [PATCH 0/3] perf: arm-spe: Fix addresses of synthesized Arm SPE events

This patch set fixes problems related to address in synthesized events from SPE.

Committer testing:

perf record --no-bpf-event -e arm_spe_0/pa_enable=1/ -- sleep 1
perf inject -i perf.data -o perf-inj.data --itrace --strip
perf script -i perf-inj.data --fields hw:+addr,+phys_addr

Before:
sleep 49337 [004] 20133.731889: 1 l1d-access: ffffcbebcde1d5b8 [unknown] ([unknown])
sleep 49337 [004] 20133.731889: 1 tlb-access: ffffcbebcde1d5b8 [unknown] ([unknown])
sleep 49337 [004] 20133.731889: 1 memory: ffffcbebcde1d5b8 [unknown] ([unknown])

After:
sleep 49337 [004] 20133.731889: 1 l1d-access: ffff800034123970 ffffcbebcde1d5b8 [unknown] ([unknown]) 153d19970
sleep 49337 [004] 20133.731889: 1 tlb-access: ffff800034123970 ffffcbebcde1d5b8 [unknown] ([unknown]) 153d19970
sleep 49337 [004] 20133.731889: 1 memory: ffff800034123970 ffffcbebcde1d5b8 [unknown] ([unknown]) 153d19970

tools/perf/arch/arm64/util/arm-spe.c | 10 ++++++++++
tools/perf/tests/attr/README | 1 +
tools/perf/tests/attr/test-record-spe-physical-address | 12 ++++++++++++
tools/perf/util/arm-spe.c | 5 +++--
4 files changed, 26 insertions(+), 2 deletions(-)