From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Scott Wood <oss@buserror.net>,
Balbir Singh <bsingharora@gmail.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32
Date: Fri, 7 Jul 2017 12:06:35 +0200 (CEST) [thread overview]
Message-ID: <cover.1499418509.git.christophe.leroy@c-s.fr> (raw)
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At the end we take the opportunity to get rid of some unneccessary/outdated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 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/kernel/vmlinux.lds.S | 2 +-
arch/powerpc/mm/init_32.c | 6 +++
arch/powerpc/mm/mem.c | 1 +
arch/powerpc/mm/mmu_decl.h | 3 ++
arch/powerpc/mm/pgtable_32.c | 66 ++++++++++++++++++----------
9 files changed, 61 insertions(+), 35 deletions(-)
--
2.12.0
next reply other threads:[~2017-07-07 10:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-07 10:06 Christophe Leroy [this message]
2017-07-07 10:06 ` [PATCH v2 1/5] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs Christophe Leroy
2017-07-07 10:06 ` [PATCH v2 2/5] powerpc/mm: Fix kernel RAM protection after freeing unused memory on PPC32 Christophe Leroy
2017-07-07 10:06 ` [PATCH v2 3/5] powerpc/mm: Implement STRICT_KERNEL_RWX " Christophe Leroy
2017-07-07 10:06 ` [PATCH v2 4/5] powerpc/mm: declare some local functions static Christophe Leroy
2017-07-07 10:06 ` [PATCH v2 5/5] powerpc/mm: Simplify __set_fixmap() Christophe Leroy
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