[PATCH v15 0/9] powerpc: Further Strict RWX support

[Jordan Niethe]

Adding more Strict RWX support on powerpc, in particular Strict Module RWX.
It is now rebased on ppc next.

For reference the previous revision is available here: 
https://lore.kernel.org/linuxppc-dev/20210517032810.129949-1-jniethe5@gmail.com/

Changes for v15:

Christophe Leroy (2):
  powerpc/mm: implement set_memory_attr()
  powerpc/32: use set_memory_attr()

Jordan Niethe (4):
  powerpc/lib/code-patching: Set up Strict RWX patching earlier
  powerpc/modules: Make module_alloc() Strict Module RWX aware
  powerpc/bpf: Remove bpf_jit_free()
  powerpc/bpf: Write protect JIT code

Russell Currey (3):
  powerpc/mm: Implement set_memory() routines
  powerpc/kprobes: Mark newly allocated probes as ROX
  powerpc: Set ARCH_HAS_STRICT_MODULE_RWX
    - Force STRICT_KERNEL_RWX if STRICT_MODULE_RWX is selected
    - Predicate on !PPC_BOOK3S_32 instead


 arch/powerpc/Kconfig                  |   3 +
 arch/powerpc/include/asm/mmu.h        |   5 +
 arch/powerpc/include/asm/set_memory.h |  34 +++++++
 arch/powerpc/kernel/kprobes.c         |  17 ++++
 arch/powerpc/kernel/module.c          |   4 +-
 arch/powerpc/lib/code-patching.c      |  12 +--
 arch/powerpc/mm/Makefile              |   2 +-
 arch/powerpc/mm/pageattr.c            | 134 ++++++++++++++++++++++++++
 arch/powerpc/mm/pgtable_32.c          |  60 ++----------
 arch/powerpc/net/bpf_jit_comp.c       |  13 +--
 10 files changed, 212 insertions(+), 72 deletions(-)
 create mode 100644 arch/powerpc/include/asm/set_memory.h
 create mode 100644 arch/powerpc/mm/pageattr.c

-- 
2.25.1