[PATCH v6 0/5] KVM: selftests: add powerpc support

["Ritesh Harjani (IBM)" <ritesh.list@gmail.com>]

Patch v5 -> v6:
================
(Suggestions from Sean):
1. Dropped kvm_create_max_vcpu, hardware_disable_test and their respective
   plumbing.
2. Bundled the enablement and the fixes for few of the tests together to avoid
   the ordering issues.


Patch v4 -> v5:
==============
- Fixed the issues reported by Anushree while running on kvm on powervm
  (nested).
- Fixed memslot_perf_test on powerpc.

PATCH v3 -> PATCH v4:
==================
- Rebased on top of Sean's new page allocator patch series v2 [1]
  This allowed to drop and patch-2 since it will now come from Sean's
  v2.
- Addressed review comments from Sean - squashed patches 6-10 in patch-1 of
  this.
- Dropped patch-5 to print vcpu_id when KVM_CREATE_VCPU ioctl fails.
- Added additional patch-3 to this series to allow dirty_log_test to run on all
  big-endian machines.

[1]: https://lore.kernel.org/kvm/20260902164123.2546762-1-seanjc@google.com/
[v3]: https://lore.kernel.org/linuxppc-dev/2d2c46be7f051c7f1c645afaec67f57067d37a81.1781093720.git.ritesh.list@gmail.com/

Testing updates:
================
I have done some fair amount of testing of the selftests both on real HW and
using various combinations on qemu (powernv+LE (default), pseries+cap-nested-hv,
pseries+cap-nested-papr, powernv+BE). There were few powerpc kvm kernel fixes
which were identified as part of this work. I will send those patches separately
as those anyway needs to go in separately.

<pasted snippet of cover letter from previous versions>
=======================================================

Hi All,

This series primarly adds KVM selftests support for powerpc (64-bit, BookS,
radix MMU).

This patch series is originally Nick's work. I have mainly only rebased it on
the latest upstream tree. Since the rebase required few changes to all the four
patches (Patch 1-4), I have dropped the earlier Acked-by from Michael Ellerman.

Since the last series was posted three years ago [1], I am resetting the version
to RFC. This rebase was done as part of a larger effort to improve the selftests
infrastructure for Linux on PowerPC tree. Thanks to Harsh and Maddy for their
help on this.


Nicholas Piggin (1):
  KVM: PPC: selftests: add support for powerpc

Ritesh Harjani (IBM) (4):
  KVM: selftests: Move memslot_perf_test off the 256M ELF load address
  KVM: PPC: selftests: Add helper for checking if running nested
  KVM: PPC: selftests: Skip idle-page check when running nested on pseries LPAR
  KVM: selftests: Don't limit LE dirty-bitmap bitops to s390x

 MAINTAINERS                                   |   2 +
 tools/testing/selftests/kvm/Makefile          |   2 +-
 tools/testing/selftests/kvm/Makefile.kvm      |  15 +
 .../selftests/kvm/access_tracking_perf_test.c |  11 +
 tools/testing/selftests/kvm/dirty_log_test.c  |  12 +-
 .../testing/selftests/kvm/include/kvm_util.h  |   9 +
 .../selftests/kvm/include/powerpc/hcall.h     |  17 +
 .../kvm/include/powerpc/kvm_util_arch.h       |  22 +
 .../selftests/kvm/include/powerpc/ppc_asm.h   |  32 ++
 .../selftests/kvm/include/powerpc/processor.h |  46 ++
 .../selftests/kvm/include/powerpc/ucall.h     |  21 +
 tools/testing/selftests/kvm/lib/guest_modes.c |  20 +-
 tools/testing/selftests/kvm/lib/kvm_util.c    |   8 +
 .../selftests/kvm/lib/powerpc/handlers.S      |  93 ++++
 .../testing/selftests/kvm/lib/powerpc/hcall.c |  45 ++
 .../selftests/kvm/lib/powerpc/processor.c     | 512 ++++++++++++++++++
 .../testing/selftests/kvm/lib/powerpc/ucall.c |  22 +
 .../testing/selftests/kvm/memslot_perf_test.c |   2 +-
 18 files changed, 879 insertions(+), 12 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/include/powerpc/hcall.h
 create mode 100644 tools/testing/selftests/kvm/include/powerpc/kvm_util_arch.h
 create mode 100644 tools/testing/selftests/kvm/include/powerpc/ppc_asm.h
 create mode 100644 tools/testing/selftests/kvm/include/powerpc/processor.h
 create mode 100644 tools/testing/selftests/kvm/include/powerpc/ucall.h
 create mode 100644 tools/testing/selftests/kvm/lib/powerpc/handlers.S
 create mode 100644 tools/testing/selftests/kvm/lib/powerpc/hcall.c
 create mode 100644 tools/testing/selftests/kvm/lib/powerpc/processor.c
 create mode 100644 tools/testing/selftests/kvm/lib/powerpc/ucall.c

--
2.39.5