Memory protection keys enables an application to protect its address space from inadvertent access by its own code.
This feature is now enabled on powerpc architecture and integrated in 4.16-rc1. The patches move the selftests to arch neutral directory and enhance their test coverage.
Test ---- Verified for correctness on powerpc and on x86.
History: ------- version 14: (1) incorporated another round of comments from Dave Hansen.
version 13: (1) Incorporated comments for Dave Hansen. (2) Added one more test for correct pkey-0 behavior.
version 12: (1) fixed the offset of pkey field in the siginfo structure for x86_64 and powerpc. And tries to use the actual field if the headers have it defined.
version 11: (1) fixed a deadlock in the ptrace testcase.
version 10 and prior: (1) moved the testcase to arch neutral directory (2) split the changes into incremental patches.
Ram Pai (20): 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: 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: Introduce generic abstractions 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 selftests/vm: test correct behavior of pkey-0
Thiago Jung Bauermann (2): selftests/vm: move arch-specific definitions to arch-specific header selftests/vm: Make gcc check arguments of sigsafe_printf()
tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/pkey-helpers.h | 214 ++++ tools/testing/selftests/vm/pkey-powerpc.h | 128 ++ tools/testing/selftests/vm/pkey-x86.h | 184 +++ tools/testing/selftests/vm/protection_keys.c | 1593 +++++++++++++++++++++++++ tools/testing/selftests/x86/.gitignore | 1 - tools/testing/selftests/x86/pkey-helpers.h | 219 ---- tools/testing/selftests/x86/protection_keys.c | 1485 ----------------------- 9 files changed, 2121 insertions(+), 1705 deletions(-) create mode 100644 tools/testing/selftests/vm/pkey-helpers.h create mode 100644 tools/testing/selftests/vm/pkey-powerpc.h create mode 100644 tools/testing/selftests/vm/pkey-x86.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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