[v7,0/7] set_memory() routines and STRICT_MODULE_RWX

Message

Russell Currey March 31, 2020, 4:48 a.m. UTC

Addressing review comments from Daniel Axtens.

v6: https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=163335
v5: https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=160869

Changes since v6:
	[1/7] and [6/7]: Check for negative values of numpages and use
	      	  	 apply_to_existing_page_range() thanks to dja

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             | 114 +++++++++++++++++++++++++
 arch/powerpc/mm/pgtable_32.c           |  95 +++------------------
 arch/powerpc/mm/ptdump/ptdump.c        |  21 ++++-
 9 files changed, 199 insertions(+), 93 deletions(-)
 create mode 100644 arch/powerpc/include/asm/set_memory.h
 create mode 100644 arch/powerpc/mm/pageattr.c