[PATCH 0/6] selftests/x86/xstate: more test cases for coredump and ptrace

["Chang S. Bae" <chang.seok.bae@intel.com>]

The recent PKRU bugfix [*] has motivated to address the missing test
coverage for the case.

Since other XSTATE tests do not cover the coredump path either, ad x86
tests with shareable helpers and then include the PKRU test by reusing
them.

While doing so, I also found a few missing ptrace cases and the gap
of inefficient error tracking to those common tests. So the series ended
up growing to address those things.

Thanks,
Chang

[*] https://lore.kernel.org/lkml/20261015210545.48208-1-chang.seok.bae@intel.com

Chang S. Bae (6):
  selftests/x86/xstate: Track testing status by kselftest API
  selftests/x86/xstate: Pre-allocate ptracee XSAVE buffer
  selftests/x86/xstate: Validate XSTATE_BV in ptrace test
  selftests/x86/xstate: Validate state reset in ptrace test
  selftests/x86/xstate: Add coredump test
  selftests/mm: Add coredump test for x86

 tools/testing/selftests/mm/Makefile           |   2 +-
 tools/testing/selftests/mm/pkey-x86.h         |   1 +
 .../selftests/mm/pkey_coredump_tests.c        |  89 +++++++
 tools/testing/selftests/mm/run_vmtests.sh     |  11 +
 tools/testing/selftests/x86/amx.c             |   5 +-
 tools/testing/selftests/x86/apx.c             |   2 +-
 tools/testing/selftests/x86/avx.c             |  33 ++-
 tools/testing/selftests/x86/coredump.h        | 229 ++++++++++++++++
 tools/testing/selftests/x86/xstate.c          | 246 ++++++++++++++----
 tools/testing/selftests/x86/xstate.h          |   2 +-
 10 files changed, 561 insertions(+), 59 deletions(-)
 create mode 100644 tools/testing/selftests/mm/pkey_coredump_tests.c
 create mode 100644 tools/testing/selftests/x86/coredump.h


base-commit: 7475ea8b58616b33c04afb976cf0fbaad9dd63fb
-- 
2.53.0