[kvm-unit-tests,v9,0/2] S390x: CPU Topology Information

Message

Pierre Morel May 19, 2023, 11:22 a.m. UTC

Hi,

new version of the kvm-unit-test s390x CPU topology series.

0. what is new in this new spin
-------------------------------

- more configuration tested in unittests.cfg
- one of the tested configuration using 248 processors will failed
  until SCLP bug is corrected
- several cleanup

1. what is done
---------------

- First part is checking PTF errors, for KVM and LPAR

- Second part is checking PTF polarization change and STSI
  with the cpu topology including drawers and books.
  This tests are run for KVM only.

To run these tests under KVM successfully you need Linux 6.0
and the latest QEMU patches you find at:

https://lists.gnu.org/archive/html/qemu-devel/2023-04/msg04568.html

Note that Fedora-35 already has the CPU Topology backport for Linux.

To start the test in KVM just do:

# ./run_tests.sh topology

or something like:

# ./s390x-run s390x/topology.elf \
	-smp 5,drawers=3,books=3,sockets=4,cores=4,maxcpus=144 \
	-append '-drawers 3 -books 3 -sockets 4 -cores 4'

Of course the declaration of the number of drawers, books, socket and
core must be coherent between -smp and -append arguments.

- Running the test on LPAR has been getestet on a46lp21

Regards,
Pierre

Pierre Morel (2):
  s390x: topology: Check the Perform Topology Function
  s390x: topology: Checking Configuration Topology Information

 lib/s390x/sclp.c    |   6 +
 lib/s390x/sclp.h    |   4 +-
 lib/s390x/stsi.h    |  36 ++++
 s390x/Makefile      |   1 +
 s390x/topology.c    | 515 ++++++++++++++++++++++++++++++++++++++++++++
 s390x/unittests.cfg |  14 ++
 6 files changed, 575 insertions(+), 1 deletion(-)
 create mode 100644 s390x/topology.c