mbox series

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

Message ID 20210609013431.9805-1-jniethe5@gmail.com (mailing list archive)
Headers show
Series powerpc: Further Strict RWX support | expand

Message

Jordan Niethe June 9, 2021, 1:34 a.m. UTC 
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

Comments

Michael Ellerman June 24, 2021, 2:03 p.m. UTC | #1 
On Wed, 9 Jun 2021 11:34:22 +1000, Jordan Niethe wrote:
> 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:
> 
> [...]

Applied to powerpc/next.

[1/9] powerpc/mm: Implement set_memory() routines
      https://git.kernel.org/powerpc/c/1f9ad21c3b384a8f16d8c46845a48a01d281a603
[2/9] powerpc/lib/code-patching: Set up Strict RWX patching earlier
      https://git.kernel.org/powerpc/c/71a5b3db9f209ea5d1e07371017e65398d3c6fbc
[3/9] powerpc/modules: Make module_alloc() Strict Module RWX aware
      https://git.kernel.org/powerpc/c/4fcc636615b1a309b39cab101a2b433cbf1f63f1
[4/9] powerpc/kprobes: Mark newly allocated probes as ROX
      https://git.kernel.org/powerpc/c/6a3a58e6230dc5b646ce3511436d7e74fc7f764b
[5/9] powerpc/bpf: Remove bpf_jit_free()
      https://git.kernel.org/powerpc/c/bc33cfdb0bb84d9e4b125a617a437c29ddcac4d9
[6/9] powerpc/bpf: Write protect JIT code
      https://git.kernel.org/powerpc/c/62e3d4210ac9c35783d0e8fc306df4239c540a79
[7/9] powerpc: Set ARCH_HAS_STRICT_MODULE_RWX
      https://git.kernel.org/powerpc/c/c35717c71e983ed55d61e523cbd11a798429bc82
[8/9] powerpc/mm: implement set_memory_attr()
      https://git.kernel.org/powerpc/c/4d1755b6a762149ae022a32fb2bbeefb6680baa6
[9/9] powerpc/32: use set_memory_attr()
      https://git.kernel.org/powerpc/c/c988cfd38e489d9390d253d4392590daf451d87a

cheers