From: Simon Guo <wei.guo.simon@xxxxxxxxx> This patch series adds thirteen new ELF core note sections which can be used with existing ptrace request PTRACE_GETREG/SET-SETREGSET for accessing various transactional memory and other miscellaneous debug register sets on powerpc platform. Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> Cc: Anton Blanchard <anton@xxxxxxxxx> Cc: Cyril Bur <cyrilbur@xxxxxxxxx> Cc: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> Cc: Simon Guo <wei.guo.simon@xxxxxxxxx> Cc: Ulrich Weigand <ulrich.weigand@xxxxxxxxxx> Cc: Michael Neuling <mikey@xxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Cc: Rashmica Gupta <rashmicy@xxxxxxxxx> Cc: Khem Raj <raj.khem@xxxxxxxxx> Cc: Jessica Yu <jeyu@xxxxxxxxxx> Cc: Jiri Kosina <jkosina@xxxxxxx> Cc: Miroslav Benes <mbenes@xxxxxxx> Cc: Suraj Jitindar Singh <sjitindarsingh@xxxxxxxxx> Cc: Chris Smart <chris@xxxxxxxxxxxxx> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-kselftest@xxxxxxxxxxxxxxx Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> Signed-off-by: Simon Guo <wei.guo.simon@xxxxxxxxx> Test Result (All tests pass on both BE and LE) ---------------------------------------------- ptrace-ebb PASS ptrace-gpr PASS ptrace-tm-gpr PASS ptrace-tm-spd-gpr PASS ptrace-tar PASS ptrace-tm-tar PASS ptrace-tm-spd-tar PASS ptrace-vsx PASS ptrace-tm-vsx PASS ptrace-tm-spd-vsx PASS ptrace-tm-spr PASS Previous versions: ================== RFC: https://lkml.org/lkml/2014/4/1/292 V1: https://lkml.org/lkml/2014/4/2/43 V2: https://lkml.org/lkml/2014/5/5/88 V3: https://lkml.org/lkml/2014/5/23/486 V4: https://lkml.org/lkml/2014/11/11/6 V5: https://lkml.org/lkml/2014/11/25/134 V6: https://lkml.org/lkml/2014/12/2/98 V7: https://lkml.org/lkml/2015/1/14/19 V8: https://lkml.org/lkml/2015/5/19/700 V9: https://lkml.org/lkml/2015/10/8/522 V10: https://lkml.org/lkml/2016/2/16/219 V11: https://lkml.org/lkml/2016/7/16/231 Changes in V12: --------------- - Revert change which is trying to incoporate following patch: [PATCH 3/5] powerpc: tm: Always use fp_state and vr_state to store live registers - Release share memory resource in all self test cases - Optimize tfhar usage in ptrace-tm-spr.c Changes in V11: --------------- - Rework based on following patch: [PATCH 3/5] powerpc: tm: Always use fp_state and vr_state to store live registers - Split EBB/PMU register ptrace implementation. - Clean some coding style warning - Added more shared memory based sync between parent and child during TM tests - Re worded some of the commit messages and cleaned them up - selftests/powerpc/ebb/reg.h has already moved as selftests/powerpc/reg.h Dropped the previous patch doing the same thing - Combined the definitions of SPRN_DSCR from dscr/ test cases - Fixed dscr/ test cases for new SPRN_DSCR_PRIV definition available Changes in V10: --------------- - Rebased against the latest mainline - Fixed couple of build failures in the test cases related to aux vector Changes in V9: -------------- - Fixed static build check failure after tm_orig_msr got dropped - Fixed asm volatile construct for used registers set - Fixed EBB, VSX, VMX tests for LE - Fixed TAR test which was failing because of system calls - Added checks for PPC_FEATURE2_HTM aux feature in the tests - Fixed copyright statements Changes in V8: -------------- - Split the misc register set into individual ELF core notes - Implemented support for VSX register set (on and off TM) - Implemented support for EBB register set - Implemented review comments on previous versions - Some code re-arrangements, re-writes and documentation - Added comprehensive list of test cases into selftests Changes in V7: -------------- - Fixed a config directive in the MISC code - Merged the two gitignore patches into a single one Changes in V6: -------------- - Added two git ignore patches for powerpc selftests - Re-formatted all in-code function definitions in kernel-doc format Changes in V5: -------------- - Changed flush_tmregs_to_thread, so not to take into account self tracing - Dropped the 3rd patch in the series which had merged two functions - Fixed one build problem for the misc debug register patch - Accommodated almost all the review comments from Suka on the 6th patch - Minor changes to the self test program - Changed commit messages for some of the patches Changes in V4: -------------- - Added one test program into the powerpc selftest bucket in this regard - Split the 2nd patch in the previous series into four different patches - Accommodated most of the review comments on the previous patch series - Added a patch to merge functions __switch_to_tm and tm_reclaim_task Changes in V3: -------------- - Added two new error paths in every TM related get/set functions when regset support is not present on the system (ENODEV) or when the process does not have any transaction active (ENODATA) in the context - Installed the active hooks for all the newly added regset core note types Changes in V2: -------------- - Removed all the power specific ptrace requests corresponding to new NT_PPC_* elf core note types. Now all the register sets can be accessed from ptrace through PTRACE_GETREGSET/PTRACE_SETREGSET using the individual NT_PPC* core note type instead - Fixed couple of attribute values for REGSET_TM_CGPR register set - Renamed flush_tmreg_to_thread as flush_tmregs_to_thread - Fixed 32 bit checkpointed GPR support - Changed commit messages accordingly ------------- Anshuman Khandual (30): elf: Add powerpc specific core note sections powerpc/process: Add the function flush_tmregs_to_thread powerpc/ptrace: Enable in transaction NT_PRFPREG ptrace requests powerpc/ptrace: Enable in transaction NT_PPC_VMX ptrace requests powerpc/ptrace: Enable in transaction NT_PPC_VSX ptrace requests powerpc/ptrace: Adapt gpr32_get, gpr32_set functions for transaction powerpc/ptrace: Enable support for NT_PPC_CGPR powerpc/ptrace: Enable support for NT_PPC_CFPR powerpc/ptrace: Enable support for NT_PPC_CVMX powerpc/ptrace: Enable support for NT_PPC_CVSX powerpc/ptrace: Enable support for TM SPR state powerpc/ptrace: Enable NT_PPC_TM_CTAR, NT_PPC_TM_CPPR, NT_PPC_TM_CDSCR powerpc/ptrace: Enable support for NT_PPPC_TAR, NT_PPC_PPR, NT_PPC_DSCR powerpc/ptrace: Enable support for EBB registers powerpc/ptrace: Enable support for Performance Monitor registers selftests/powerpc: Add more SPR numbers, TM & VMX instructions to 'reg.h' selftests/powerpc: Use the new SPRN_DSCR_PRIV definiton selftests/powerpc: Add ptrace tests for EBB selftests/powerpc: Add ptrace tests for GPR/FPR registers selftests/powerpc: Add ptrace tests for GPR/FPR registers in TM selftests/powerpc: Add ptrace tests for GPR/FPR registers in suspended TM selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR registers selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR in TM selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR in suspended TM selftests/powerpc: Add ptrace tests for VSX, VMX registers selftests/powerpc: Add ptrace tests for VSX, VMX registers in TM selftests/powerpc: Add ptrace tests for VSX, VMX registers in suspended TM selftests/powerpc: Add ptrace tests for TM SPR registers selftests/powerpc: Add .gitignore file for ptrace executables selftests/powerpc: Fix a build issue arch/powerpc/include/asm/switch_to.h | 8 + arch/powerpc/include/uapi/asm/elf.h | 5 + arch/powerpc/kernel/process.c | 20 + arch/powerpc/kernel/ptrace.c | 1740 ++++++++++++++++++-- include/uapi/linux/elf.h | 13 + tools/testing/selftests/powerpc/Makefile | 3 +- .../selftests/powerpc/context_switch/cp_abort.c | 6 +- tools/testing/selftests/powerpc/dscr/dscr.h | 10 +- tools/testing/selftests/powerpc/ptrace/.gitignore | 11 + tools/testing/selftests/powerpc/ptrace/Makefile | 13 + .../testing/selftests/powerpc/ptrace/ptrace-ebb.c | 185 +++ .../testing/selftests/powerpc/ptrace/ptrace-ebb.h | 102 ++ .../testing/selftests/powerpc/ptrace/ptrace-gpr.c | 199 +++ .../testing/selftests/powerpc/ptrace/ptrace-gpr.h | 74 + .../testing/selftests/powerpc/ptrace/ptrace-tar.c | 159 ++ .../testing/selftests/powerpc/ptrace/ptrace-tar.h | 50 + .../selftests/powerpc/ptrace/ptrace-tm-gpr.c | 299 ++++ .../selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c | 327 ++++ .../selftests/powerpc/ptrace/ptrace-tm-spd-tar.c | 195 +++ .../selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c | 222 +++ .../selftests/powerpc/ptrace/ptrace-tm-spr.c | 186 +++ .../selftests/powerpc/ptrace/ptrace-tm-tar.c | 182 ++ .../selftests/powerpc/ptrace/ptrace-tm-vsx.c | 209 +++ .../testing/selftests/powerpc/ptrace/ptrace-vsx.c | 143 ++ .../testing/selftests/powerpc/ptrace/ptrace-vsx.h | 121 ++ tools/testing/selftests/powerpc/ptrace/ptrace.S | 396 +++++ tools/testing/selftests/powerpc/ptrace/ptrace.h | 783 +++++++++ tools/testing/selftests/powerpc/reg.h | 42 +- 28 files changed, 5566 insertions(+), 137 deletions(-) create mode 100644 tools/testing/selftests/powerpc/ptrace/.gitignore create mode 100644 tools/testing/selftests/powerpc/ptrace/Makefile create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-ebb.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-ebb.h create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tar.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tar.h create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-tar.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-tar.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace.S create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace.h -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
