[PATCH v3 00/11] Add static DEXCR support
Benjamin Gray
bgray at linux.ibm.com
Fri Jun 16 13:48:35 AEST 2023
v3: * Expose (H)DEXCR in ptrace as 64 bits
* Remove build config for DEXCR, always enable NPHIE
* Fix up documentation to reflect this
* Some commit message fixes
Previous versions:
v2: https://lore.kernel.org/all/20230330055040.434133-1-bgray@linux.ibm.com/
v1: https://lore.kernel.org/all/20230322054612.1340573-1-bgray@linux.ibm.com/
RFC: https://lore.kernel.org/all/20221128024458.46121-1-bgray@linux.ibm.com/
Benjamin Gray (11):
powerpc/book3s: Add missing <linux/sched.h> include
powerpc/ptrace: Add missing <linux/regset.h> include
powerpc/dexcr: Add initial Dynamic Execution Control Register (DEXCR)
support
powerpc/dexcr: Handle hashchk exception
powerpc/dexcr: Support userspace ROP protection
powerpc/ptrace: Expose DEXCR and HDEXCR registers to ptrace
powerpc/ptrace: Expose HASHKEYR register to ptrace
Documentation: Document PowerPC kernel DEXCR interface
selftests/powerpc: Add more utility macros
selftests/powerpc/dexcr: Add hashst/hashchk test
selftests/powerpc/dexcr: Add DEXCR status utility lsdexcr
Documentation/powerpc/dexcr.rst | 58 +++++
Documentation/powerpc/index.rst | 1 +
arch/powerpc/include/asm/book3s/64/kexec.h | 5 +
arch/powerpc/include/asm/book3s/64/kup.h | 1 +
arch/powerpc/include/asm/cputable.h | 4 +-
arch/powerpc/include/asm/ppc-opcode.h | 1 +
arch/powerpc/include/asm/processor.h | 1 +
arch/powerpc/include/asm/reg.h | 11 +
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/cpu_setup_power.c | 8 +
arch/powerpc/kernel/process.c | 17 ++
arch/powerpc/kernel/prom.c | 1 +
arch/powerpc/kernel/ptrace/ptrace-decl.h | 6 +
arch/powerpc/kernel/ptrace/ptrace-view.c | 72 +++++-
arch/powerpc/kernel/traps.c | 16 ++
include/uapi/linux/elf.h | 2 +
tools/testing/selftests/powerpc/Makefile | 1 +
.../selftests/powerpc/dexcr/.gitignore | 2 +
.../testing/selftests/powerpc/dexcr/Makefile | 9 +
tools/testing/selftests/powerpc/dexcr/dexcr.c | 132 ++++++++++
tools/testing/selftests/powerpc/dexcr/dexcr.h | 49 ++++
.../selftests/powerpc/dexcr/hashchk_test.c | 227 ++++++++++++++++++
.../testing/selftests/powerpc/dexcr/lsdexcr.c | 141 +++++++++++
tools/testing/selftests/powerpc/include/reg.h | 4 +
.../testing/selftests/powerpc/include/utils.h | 31 ++-
.../powerpc/pmu/sampling_tests/misc.h | 2 -
tools/testing/selftests/powerpc/utils.c | 24 ++
27 files changed, 823 insertions(+), 5 deletions(-)
create mode 100644 Documentation/powerpc/dexcr.rst
create mode 100644 tools/testing/selftests/powerpc/dexcr/.gitignore
create mode 100644 tools/testing/selftests/powerpc/dexcr/Makefile
create mode 100644 tools/testing/selftests/powerpc/dexcr/dexcr.c
create mode 100644 tools/testing/selftests/powerpc/dexcr/dexcr.h
create mode 100644 tools/testing/selftests/powerpc/dexcr/hashchk_test.c
create mode 100644 tools/testing/selftests/powerpc/dexcr/lsdexcr.c
--
2.40.1
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