Re: [PATCH v3 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32

[Balbir Singh]

On Wed, Aug 2, 2017 at 11:50 PM, Christophe Leroy
 wrote:
> This patch set implements STRICT_KERNEL_RWX on Powerpc32
> after fixing a few issues related to kernel code page protection.
>
> At the end we take the opportunity to get rid of some unneccessary/outdated
> fixmap stuff.

I looked at it, looks good overall, I've reviewed the previous series. Have you
checked the series against CONFIG_RELOCATABLE?

Balbir Singh.

[PATCH v3 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32

[Christophe Leroy]

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

At the end we take the opportunity to get rid of some unneccessary/outdated
fixmap stuff.

Changes from v2 to v3:
* Rebased on latest linux-powerpc/merge branch
* Function remap_init_ram() renamed mark_initmem_nx() to match new
  PPC64 implementation

Changes from v1 to v2:
* Rebased on latest linux-next following including of STRICT_KERNEL_RWX for 
PPC64
* Removed from the serie the two patches already applied.

Christophe Leroy (5):
  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 STRICT_KERNEL_RWX on PPC32
  powerpc/mm: declare some local functions static
  powerpc/mm: Simplify __set_fixmap()

 arch/powerpc/Kconfig |  2 +-
 arch/powerpc/include/asm/book3s/32/pgtable.h |  3 --
 arch/powerpc/include/asm/fixmap.h| 10 +++--
 arch/powerpc/include/asm/nohash/32/pgtable.h |  3 --
 arch/powerpc/include/asm/pgtable.h   |  2 +-
 arch/powerpc/kernel/vmlinux.lds.S|  2 +-
 arch/powerpc/mm/init_32.c|  6 +++
 arch/powerpc/mm/pgtable_32.c | 66 ++--
 8 files changed, 58 insertions(+), 36 deletions(-)

-- 
2.13.3