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Subject[PATCH v2 00/10] Kernel Userspace protection for PPC32
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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

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