Sandipan Das <sandipan@xxxxxxxxxxxxx> writes: > 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 and has been available since > 4.16-rc1. The patches move the selftests to arch neutral directory > and enhance their test coverage. > > Testing > ------- > Verified for correctness on powerpc. Need help with x86 testing as I > do not have access to a Skylake server. Client platforms like Coffee > Lake do not have the required feature bits set in CPUID. > > Changelog > --------- > Link to previous version (v14): > https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=55981&state=* > > v15: > (1) Rebased on top of latest master. > (2) Addressed review comments from Dave Hansen. > (3) Moved code for getting or setting pkey bits to new > helpers. These changes replace patch 7 of v14. > (4) Added a fix which ensures that the correct count of > reserved keys is used across different platforms. > (5) Added a fix which ensures that the correct page size > is used as powerpc supports both 4K and 64K pages. > Any update on merging this series? Can Intel help with testing this series on Skylake server? Possibly merging to -next will result in automated 01.org tests? > v14: > (1) Incorporated another round of comments from Dave Hansen. > > v13: > (1) Incorporated comments for Dave Hansen. > (2) Added one more test for correct pkey-0 behavior. > > v12: > (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. > > v11: > (1) Fixed a deadlock in the ptrace testcase. > > v10 and prior: > (1) Moved the testcase to arch neutral directory. > (2) Split the changes into incremental patches. > > Desnes A. Nunes do Rosario (1): > selftests/vm/pkeys: Fix number of reserved powerpc pkeys > > Ram Pai (17): > selftests/x86/pkeys: Move selftests to arch-neutral directory > selftests/vm/pkeys: Rename all references to pkru to a generic name > selftests/vm/pkeys: Move generic definitions to header file > selftests/vm/pkeys: Typecast the pkey register > selftests/vm/pkeys: Fix pkey_disable_clear() > selftests/vm/pkeys: Fix assertion in pkey_disable_set/clear() > selftests/vm/pkeys: Fix alloc_random_pkey() to make it really random > selftests/vm/pkeys: Introduce generic pkey abstractions > selftests/vm/pkeys: Introduce powerpc support > selftests/vm/pkeys: Fix assertion in test_pkey_alloc_exhaust() > selftests/vm/pkeys: Improve checks to determine pkey support > selftests/vm/pkeys: Associate key on a mapped page and detect access > violation > selftests/vm/pkeys: Associate key on a mapped page and detect write > violation > selftests/vm/pkeys: Detect write violation on a mapped > access-denied-key page > selftests/vm/pkeys: Introduce a sub-page allocator > selftests/vm/pkeys: Test correct behaviour of pkey-0 > selftests/vm/pkeys: Override access right definitions on powerpc > > Sandipan Das (3): > selftests: vm: pkeys: Add helpers for pkey bits > selftests: vm: pkeys: Use the correct huge page size > selftests: vm: pkeys: Use the correct page size on powerpc > > Thiago Jung Bauermann (2): > selftests/vm/pkeys: Move some definitions to arch-specific header > selftests/vm/pkeys: Make gcc check arguments of sigsafe_printf() > > tools/testing/selftests/vm/.gitignore | 1 + > tools/testing/selftests/vm/Makefile | 5 + > tools/testing/selftests/vm/pkey-helpers.h | 226 ++++++ > tools/testing/selftests/vm/pkey-powerpc.h | 138 ++++ > tools/testing/selftests/vm/pkey-x86.h | 183 +++++ > .../selftests/{x86 => vm}/protection_keys.c | 688 ++++++++++-------- > tools/testing/selftests/x86/.gitignore | 1 - > tools/testing/selftests/x86/pkey-helpers.h | 219 ------ > 8 files changed, 931 insertions(+), 530 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 > rename tools/testing/selftests/{x86 => vm}/protection_keys.c (74%) > delete mode 100644 tools/testing/selftests/x86/pkey-helpers.h > > -- > 2.17.1 -aneesh
