[v6,0/7] set_memory() routines and STRICT_MODULE_RWX

Message

Russell Currey March 10, 2020, 1:03 a.m. UTC

Back again, just minor changes.

v5: https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=160869

Changes since v5:
	[1/8]: Patch 8/8 squashed as suggested by Andrew Donnellan
	       Added a note to the comment of change_page_attr()
	       Rename size to sz to meet 90 chars without multiple lines

	[8/8]: Removed, change_memory_attr() section squashed, rest dropped
	       as suggested by Christophe Leroy (since I just assumed it was
	       the right thing to do instead of actually checking)

Thanks for the feedback.

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

Russell Currey (5):
  powerpc/mm: Implement set_memory() routines
  powerpc/kprobes: Mark newly allocated probes as RO
  powerpc/mm/ptdump: debugfs handler for W+X checks at runtime
  powerpc: Set ARCH_HAS_STRICT_MODULE_RWX
  powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig

 arch/powerpc/Kconfig                   |   2 +
 arch/powerpc/Kconfig.debug             |   6 +-
 arch/powerpc/configs/skiroot_defconfig |   1 +
 arch/powerpc/include/asm/set_memory.h  |  34 ++++++++
 arch/powerpc/kernel/kprobes.c          |  17 +++-
 arch/powerpc/mm/Makefile               |   2 +-
 arch/powerpc/mm/pageattr.c             | 112 +++++++++++++++++++++++++
 arch/powerpc/mm/pgtable_32.c           |  95 +++------------------
 arch/powerpc/mm/ptdump/ptdump.c        |  21 ++++-
 9 files changed, 197 insertions(+), 93 deletions(-)
 create mode 100644 arch/powerpc/include/asm/set_memory.h
 create mode 100644 arch/powerpc/mm/pageattr.c