** Changed in: ubuntu-z-systems
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1836860
Title:
[18.04 FEAT] Enhanced CPU-MF hardware counters - kernel part
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Bug description:
SRU Justification:
==================
[Impact]
* Enhanced CPU-MF hardware counters - fix lack of support of new
hardware
[Fix]
* 46a984ffb86c8542fa510656fa8cb33befe8ee8f 46a984ff "s390/cpum_cf: Add
support for CPU-MF SVN 6"
* 820bace734722715c643dcb5f74b502cb912d4eb 820bace "s390/cpumf: Add
extended counter set definitions for model 8561 and 8562"
[Test Case]
* try CPU-Measurement Facility counter on z14 and next generation
hardware - only IBM can do that now
[Regression Potential]
* The regression potential can be considered as low since these
changes are limited to arch/s390
* do only touch perf_* code
* and mainly add code (rather than modify or remove)
[Other Info]
* first commit is taken from 5.2, second from 5.3-rc1
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Enhance the CPU-MF hardware counters for improved HW support . Kernel
5.2 commits and kernel 5.3 patch on top
Already requested for Ubuntu 19.10
kernel 5.2
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834201
kernel 5.3 fix
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1836739
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