Memory protection keys enable applications to protect its address space from inadvertent access from itself.
This feature is now enabled on powerpc architecture. The patches move the selftests to arch neutral directory and enhances them. Verified for correctness on powerpc and on x86 architectures(using EC2 ubuntu VM instances).
Ram Pai (21): selftests/x86: Move protecton key selftest to arch neutral directory selftests/vm: rename all references to pkru to a generic name selftests/vm: move generic definitions to header file selftests/vm: typecast the pkey register selftests/vm: generic function to handle shadow key register selftests/vm: fix the wrong assert in pkey_disable_set() selftests/vm: fixed bugs in pkey_disable_clear() selftests/vm: clear the bits in shadow reg when a pkey is freed. selftests/vm: fix alloc_random_pkey() to make it really random selftests/vm: introduce two arch independent abstraction selftests/vm: pkey register should match shadow pkey selftests/vm: generic cleanup selftests/vm: powerpc implementation for generic abstraction selftests/vm: clear the bits in shadow reg when a pkey is freed. selftests/vm: powerpc implementation to check support for pkey selftests/vm: fix an assertion in test_pkey_alloc_exhaust() selftests/vm: associate key on a mapped page and detect access violation selftests/vm: associate key on a mapped page and detect write violation selftests/vm: detect write violation on a mapped access-denied-key page selftests/vm: testcases must restore pkey-permissions selftests/vm: sub-page allocator
Thiago Jung Bauermann (3): selftests/vm: Fix deadlock in protection_keys.c selftests/powerpc: Add ptrace tests for Protection Key register selftests/powerpc: Add core file test for Protection Key register
tools/testing/selftests/powerpc/include/reg.h | 1 + tools/testing/selftests/powerpc/ptrace/Makefile | 5 +- tools/testing/selftests/powerpc/ptrace/core-pkey.c | 438 ++++++ .../testing/selftests/powerpc/ptrace/ptrace-pkey.c | 443 ++++++ tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/pkey-helpers.h | 419 ++++++ tools/testing/selftests/vm/protection_keys.c | 1471 ++++++++++++++++++++ tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/pkey-helpers.h | 223 --- tools/testing/selftests/x86/protection_keys.c | 1407 ------------------- 10 files changed, 2778 insertions(+), 1632 deletions(-) create mode 100644 tools/testing/selftests/powerpc/ptrace/core-pkey.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c create mode 100644 tools/testing/selftests/vm/pkey-helpers.h create mode 100644 tools/testing/selftests/vm/protection_keys.c delete mode 100644 tools/testing/selftests/x86/pkey-helpers.h delete mode 100644 tools/testing/selftests/x86/protection_keys.c
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