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[0/7] ppc: record-replay fixes and enablement

Message ID 20230726183532.434380-1-npiggin@gmail.com
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Series ppc: record-replay fixes and enablement | expand

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Nicholas Piggin July 26, 2023, 6:35 p.m. UTC 
Here is a series that gets ppc pseries and powernv machines into
better shape for record-replay, maybe for 8.2. It's likely got a
few deficiencies but it does run test cases and helped find bugs
in migration already. It requires previous decrementer fixes to
work well.

I think we can get away without patch 1 for 8.1, because we
inadvertently fixed regular (non-rr) migration of reservation
with  commit 392d328abe753. But opinions welcome.

For record/replay and avocado test reviewers, I would mainly
be interested in opinions about patch 6. I tried not to affect
existing archs much.

Thanks,
Nick

Nicholas Piggin (7):
  target/ppc: Fix CPU reservation migration for record-replay
  target/ppc: Fix timebase reset with record-replay
  spapr: Fix machine reset deadlock from replay-record
  spapr: Fix record-replay machine reset consuming too many events
  tests/avocado: boot ppc64 pseries replay-record test to Linux VFS
    mount
  tests/avocado: reverse-debugging cope with re-executing breakpoints
  tests/avocado: ppc64 reverse debugging tests for pseries and powernv

 hw/ppc/ppc.c                       | 11 ++++--
 hw/ppc/spapr.c                     | 32 +++++++++++++++---
 include/hw/ppc/spapr.h             |  2 ++
 target/ppc/compat.c                | 19 +++++++++++
 target/ppc/cpu.h                   |  3 ++
 target/ppc/machine.c               | 26 ++++++++++++--
 target/ppc/translate.c             |  4 +++
 tests/avocado/replay_kernel.py     |  3 +-
 tests/avocado/reverse_debugging.py | 54 +++++++++++++++++++++++++++---
 9 files changed, 139 insertions(+), 15 deletions(-)