[kvm-unit-tests,v2,0/6] s390x: Add multiboot and smp

Message

Janosch Frank Sept. 5, 2019, 10:39 a.m. UTC

Cross testing emulated instructions has in the past brought up some
issues on all available IBM Z hypervisors. So let's upstream the last
part of multiboot: sclp interrupts and line mode console.

SMP tests are a great way to excercise external interruptions, cpu
resets and sigp. The smp library is always initialized and provides
very rudimentary CPU management for now.

v2:
* Fixed cr0 masks
* Replaced gotos with loops
* Addressed other review comments

Janosch Frank (6):
  s390x: Use interrupts in SCLP and add locking
  s390x: Add linemode console
  s390x: Add linemode buffer to fix newline on every print
  s390x: Add initial smp code
  s390x: Prepare for external calls
  s390x: SMP test

 lib/s390x/asm/arch_def.h  |  13 ++
 lib/s390x/asm/interrupt.h |   5 +
 lib/s390x/asm/sigp.h      |  28 +++-
 lib/s390x/interrupt.c     |  28 +++-
 lib/s390x/io.c            |   5 +-
 lib/s390x/sclp-console.c  | 243 ++++++++++++++++++++++++++++++---
 lib/s390x/sclp.c          |  55 +++++++-
 lib/s390x/sclp.h          |  59 +++++++-
 lib/s390x/smp.c           | 276 ++++++++++++++++++++++++++++++++++++++
 lib/s390x/smp.h           |  51 +++++++
 s390x/Makefile            |   2 +
 s390x/cstart64.S          |   7 +
 s390x/smp.c               | 242 +++++++++++++++++++++++++++++++++
 s390x/unittests.cfg       |   4 +
 14 files changed, 991 insertions(+), 27 deletions(-)
 create mode 100644 lib/s390x/smp.c
 create mode 100644 lib/s390x/smp.h
 create mode 100644 s390x/smp.c