[PATCH 0/3] powerpc/mm: Fix kernel protection and implement CONFIG_DEBUG_RODATA on PPC32

From	Christophe Leroy <christophe.leroy@c-s.fr>
Newsgroups	linux.kernel
Subject	[PATCH 0/3] powerpc/mm: Fix kernel protection and implement CONFIG_DEBUG_RODATA on PPC32
Date	2017-04-19 13:10 +0200
Message-ID	<txVEJ-2Kc-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

This patch set implements CONFIG_DEBUG_RODATA on Powerpc32
after fixing a few issues related to kernel code page protection.

The second patch of the set was initially submitted as standalone.
This new version takes into account Michael comments. It is part
of the set because it is now based on function change_page_attr()

Christophe Leroy (3):
  powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs
  powerpc/mm: Fix kernel RAM protection after freeing unused memory on
    PPC32
  powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32

 arch/powerpc/Kconfig.debug         | 11 +++++++
 arch/powerpc/include/asm/pgtable.h |  8 ++++++
 arch/powerpc/kernel/ftrace.c       |  2 ++
 arch/powerpc/mm/init_32.c          |  3 +-
 arch/powerpc/mm/mem.c              |  1 +
 arch/powerpc/mm/mmu_decl.h         |  3 ++
 arch/powerpc/mm/pgtable_32.c       | 59 +++++++++++++++++++++++++++++++++-----
 7 files changed, 79 insertions(+), 8 deletions(-)

-- 
2.12.0

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH 0/3] powerpc/mm: Fix kernel protection and implement CONFIG_DEBUG_RODATA on PPC32 Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-19 13:10 +0200
  [PATCH 3/3] powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32 Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-19 13:10 +0200
    Re: [PATCH 3/3] powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32 Michael Ellerman <mpe@ellerman.id.au> - 2017-04-19 16:10 +0200
      Re: [PATCH 3/3] powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32 Christophe LEROY <christophe.leroy@c-s.fr> - 2017-04-19 16:30 +0200
        Re: [PATCH 3/3] powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32 christophe leroy <christophe.leroy@c-s.fr> - 2017-04-19 20:40 +0200
          Re: [PATCH 3/3] powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32 Michael Ellerman <mpe@ellerman.id.au> - 2017-04-20 08:10 +0200
  [PATCH 2/3] powerpc/mm: Fix kernel RAM protection after freeing  unused memory on PPC32 Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-19 13:10 +0200
  [PATCH 1/3] powerpc/mm: Ensure change_page_attr() doesn't invalidate  pinned TLBs Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-19 13:10 +0200

csiph-web