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[kvm-unit-tests,v6,00/18] pmu test bugs fix and improvements

Message ID 20240914101728.33148-1-dapeng1.mi@linux.intel.com (mailing list archive)
Headers show
Series pmu test bugs fix and improvements | expand

Message

Dapeng Mi Sept. 14, 2024, 10:17 a.m. UTC 
Changes:
v5 -> v6:
  * limit maximum fixed counters number to 
    MIN(pmu.nr_fixed_counters, ARRAY_SIZE(fixed_events)) to avoid
    out-of-bound access for fixed_events[]. If supported fixed counters
    number is larger than array size of fixed_events[], print message to
    remind to update test case. (Jim)
  * limit instructions & branches events precise validation for only
    Intel processors. (Sandipan Das)

KUT/pmu test passes on Intel Sapphire Rapids platform.

History:
  v5: https://lore.kernel.org/all/20240703095712.64202-1-dapeng1.mi@linux.intel.com/
  v4: https://lore.kernel.org/all/20240419035233.3837621-1-dapeng1.mi@linux.intel.com/
  v3: https://lore.kernel.org/lkml/20240103031409.2504051-1-dapeng1.mi@linux.intel.com/ 
  v2: https://lore.kernel.org/lkml/20231031092921.2885109-1-dapeng1.mi@linux.intel.com/
  v1: https://lore.kernel.org/lkml/20231024075748.1675382-1-dapeng1.mi@linux.intel.com/

Dapeng Mi (17):
  x86: pmu: Remove blank line and redundant space
  x86: pmu: Refine fixed_events[] names
  x86: pmu: Fix the issue that pmu_counter_t.config crosses cache line
  x86: pmu: Enlarge cnt[] length to 48 in check_counters_many()
  x86: pmu: Print measured event count if test fails
  x86: pmu: Fix potential out of bound access for fixed events
  x86: pmu: Fix cycles event validation failure
  x86: pmu: Use macro to replace hard-coded branches event index
  x86: pmu: Use macro to replace hard-coded ref-cycles event index
  x86: pmu: Use macro to replace hard-coded instructions event index
  x86: pmu: Enable and disable PMCs in loop() asm blob
  x86: pmu: Improve instruction and branches events verification
  x86: pmu: Improve LLC misses event verification
  x86: pmu: Adjust lower boundary of llc-misses event to 0 for legacy
    CPUs
  x86: pmu: Add IBPB indirect jump asm blob
  x86: pmu: Adjust lower boundary of branch-misses event
  x86: pmu: Optimize emulated instruction validation

Xiong Zhang (1):
  x86: pmu: Remove duplicate code in pmu_init()

 lib/x86/pmu.c |   5 -
 x86/pmu.c     | 427 ++++++++++++++++++++++++++++++++++++++++----------
 2 files changed, 346 insertions(+), 86 deletions(-)


base-commit: 17f6f2fd17935eb5e564f621c71244b4a3ddeafb