[kvm-unit-tests,v3,0/6] s390x: Add multiboot and smp
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Message ID 20190920080356.1948-1-frankja@linux.ibm.com
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  • s390x: Add multiboot and smp
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Janosch Frank Sept. 20, 2019, 8:03 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.

v3:
 * Simplified linemode buffering
 * Removed error constant use
 * Smaller fixes

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     |  27 +++-
 lib/s390x/io.c            |   5 +-
 lib/s390x/sclp-console.c  | 218 ++++++++++++++++++++++++++++---
 lib/s390x/sclp.c          |  55 +++++++-
 lib/s390x/sclp.h          |  59 ++++++++-
 lib/s390x/smp.c           | 263 ++++++++++++++++++++++++++++++++++++++
 lib/s390x/smp.h           |  51 ++++++++
 s390x/Makefile            |   2 +
 s390x/cstart64.S          |   7 +
 s390x/smp.c               | 242 +++++++++++++++++++++++++++++++++++
 s390x/unittests.cfg       |   4 +
 14 files changed, 952 insertions(+), 27 deletions(-)
 create mode 100644 lib/s390x/smp.c
 create mode 100644 lib/s390x/smp.h
 create mode 100644 s390x/smp.c