This series intend to implement Kernel Userspace protection for PPC32. It comes on top of the v5 series for Radix.
The first patch of the series is a fix which is expected to be merged soon. The second patch is a squash of Russel/Michael series for Radix. Tested on: - 8xx - 83xx (ie book3s32 without hash table) - QEMU MAC99 (ie book3s32 with hash table) v2: - Rebased/adapted the series on top of the v5 series for Radix. - Reordered the patches so that we first have the ones common to 32 bits, then the 8xx, then book3s32 - Fixed lockup on bad data write (unauthorised write to user) on book3s32 hash. - Added KUEP for book3s32 Christophe Leroy (9): powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32 powerpc/32: Remove MSR_PR test when returning from syscall powerpc/32: Prepare for Kernel Userspace Access Protection powerpc/8xx: Only define APG0 and APG1 powerpc/8xx: Add Kernel Userspace Execution Prevention powerpc/8xx: Add Kernel Userspace Access Protection powerpc/32s: Implement Kernel Userspace Execution Prevention. powerpc/32s: Prepare Kernel Userspace Access Protection powerpc/32s: Implement Kernel Userspace Access Protection Russell Currey (1): powerpc/mm: Detect bad KUAP faults (Squash of v5 series) Documentation/admin-guide/kernel-parameters.txt | 4 +- arch/powerpc/include/asm/book3s/32/kup.h | 149 ++++++++++++++++++++++++ arch/powerpc/include/asm/book3s/32/mmu-hash.h | 5 + arch/powerpc/include/asm/book3s/64/kup-radix.h | 119 +++++++++++++++++++ arch/powerpc/include/asm/exception-64s.h | 2 + arch/powerpc/include/asm/feature-fixups.h | 3 + arch/powerpc/include/asm/futex.h | 4 + arch/powerpc/include/asm/kup.h | 65 +++++++++++ arch/powerpc/include/asm/mmu.h | 10 +- arch/powerpc/include/asm/nohash/32/kup-8xx.h | 68 +++++++++++ arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 26 ++++- arch/powerpc/include/asm/processor.h | 3 + arch/powerpc/include/asm/ptrace.h | 11 +- arch/powerpc/include/asm/uaccess.h | 38 ++++-- arch/powerpc/kernel/asm-offsets.c | 7 ++ arch/powerpc/kernel/cpu_setup_6xx.S | 3 - arch/powerpc/kernel/entry_32.S | 28 +++-- arch/powerpc/kernel/entry_64.S | 27 ++++- arch/powerpc/kernel/exceptions-64s.S | 3 + arch/powerpc/kernel/head_32.S | 52 +++++++-- arch/powerpc/kernel/idle_book3s.S | 39 +++++++ arch/powerpc/kernel/setup_64.c | 10 ++ arch/powerpc/lib/checksum_wrappers.c | 4 + arch/powerpc/lib/code-patching.c | 4 +- arch/powerpc/mm/8xx_mmu.c | 24 ++++ arch/powerpc/mm/fault.c | 49 ++++++-- arch/powerpc/mm/hash_low_32.S | 14 +-- arch/powerpc/mm/init-common.c | 26 +++++ arch/powerpc/mm/init_32.c | 3 + arch/powerpc/mm/pgtable-radix.c | 30 ++++- arch/powerpc/mm/pkeys.c | 1 + arch/powerpc/mm/ppc_mmu_32.c | 23 ++++ arch/powerpc/platforms/Kconfig.cputype | 37 ++++++ 33 files changed, 826 insertions(+), 65 deletions(-) create mode 100644 arch/powerpc/include/asm/book3s/32/kup.h create mode 100644 arch/powerpc/include/asm/book3s/64/kup-radix.h create mode 100644 arch/powerpc/include/asm/kup.h create mode 100644 arch/powerpc/include/asm/nohash/32/kup-8xx.h -- 2.13.3
