[SRU][F][I][J][PATCH 0/2] kernel: Add support for CPU-MF counter second version 7

[Krzysztof Kozlowski]

BugLink: https://bugs.launchpad.net/bugs/1960182

SRU Justification:

[Impact]

* Daemon cpacfstatsd fails on start up of the system
  with this error message cpacfstatsd: Event DEA_FUNCTIONS for pmu
  cpum_cf not found (2:No such file or directory)

* When the CPU Measurement facility device driver is initialized during
  kernel boot, it reads out the CPU Measurement facility counter
  hardware first and second version numbers. Depending on these numbers
  the device driver exports attributes in the sysfs directory
  /sys/devices/cpum_cf/events. When the CPM-MF second version number is
  not known, no attributes of the crypto counter set are exported.

  However the cpacfstatsd program scans the sysfs directory
  /sys/devices/cpum_cf/events for attribute files of the crypto counter
  set, for example attribute file DEA_FUNCTIONS and others.

[Fix]

* Add support for the new CPU-MF Measurement counter
               facility second version number 7

* Two patches (backport+cherry) for Focal.
* Two patches (clean cherry) for Impish and Jammy.

[Test Plan]

* Tests provided by IBM. See also bug report.

[Where problems could occur]

* s390x only.

Thomas Richter (2):
  s390/cpumf: Support for CPU Measurement Facility CSVN 7
  s390/cpumf: Support for CPU Measurement Sampling Facility LS bit

 arch/s390/include/asm/cpu_mf.h         | 4 +++-
 arch/s390/kernel/perf_cpum_cf_diag.c   | 4 ++--
 arch/s390/kernel/perf_cpum_cf_events.c | 6 +++---
 arch/s390/kernel/perf_cpum_sf.c        | 2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

-- 
2.32.0