[kvm-unit-tests PATCH v2 0/4] S390x: CPU Topology Information

[Pierre Morel <pmorel@linux.ibm.com>]

Hi,

second version of the series with corrections.

When facility 11 is available inside the S390x architecture, 2 new
instructions are available: PTF and STSI with function code 15.

Let's check their availability in QEMU/KVM and their coherence
with the CPU topology provided by the QEMU -smp parameter.

To run these tests successfully you will need the Linux and the QEMU
patches:
    https://lkml.org/lkml/2021/8/3/201

    https://lists.nongnu.org/archive/html/qemu-s390x/2021-07/msg00165.html

Regards,
Pierre

Pierre Morel (4):
  s390x: lib: Add SCLP toplogy nested level
  s390x: lib: Simplify stsi_get_fc and move it to library
  s390x: topology: Check the Perform Topology Function
  s390x: topology: Checking Configuration Topology Information

 lib/s390x/asm/arch_def.h |  16 ++
 lib/s390x/sclp.c         |   6 +
 lib/s390x/sclp.h         |   4 +-
 s390x/Makefile           |   1 +
 s390x/stsi.c             |  20 +--
 s390x/topology.c         | 307 +++++++++++++++++++++++++++++++++++++++
 s390x/unittests.cfg      |   4 +
 7 files changed, 339 insertions(+), 19 deletions(-)
 create mode 100644 s390x/topology.c

-- 
2.25.1

Changelog:

From V1:

- Simplify the stsi_get_fc function when pushing it into lib
  (Janosch)

- Simplify PTF inline assembly as PTF instruction does not use RRE
  second argument
  (Claudio)

- Rename Test global name
  (Claudio, Janosch)

- readibility, naming for PTF_REQ_* and removed unused globals
  (Janosch)

- skipping tests which could fail when run on LPAR
  (Janosh)

- Missing prefix_pop
  (Janosch)