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 v3 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32
Date: Wed, 2 Aug 2017 15:50:58 +0200 (CEST) [thread overview]
Message-ID: <cover.1501679953.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At the end we take the opportunity to get rid of some unneccessary/outdated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 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
next reply other threads:[~2017-08-02 13:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-02 13:50 Christophe Leroy [this message]
2017-08-02 13:51 ` [PATCH v3 1/5] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs Christophe Leroy
2017-08-16 12:29 ` [v3, " Michael Ellerman
2017-08-02 13:51 ` [PATCH v3 2/5] powerpc/mm: Fix kernel RAM protection after freeing unused memory on PPC32 Christophe Leroy
2017-08-02 13:51 ` [PATCH v3 3/5] powerpc/mm: Implement STRICT_KERNEL_RWX " Christophe Leroy
2017-08-02 13:51 ` [PATCH v3 4/5] powerpc/mm: declare some local functions static Christophe Leroy
2017-08-02 13:51 ` [PATCH v3 5/5] powerpc/mm: Simplify __set_fixmap() Christophe Leroy
2017-08-03 7:24 ` [PATCH v3 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32 Balbir Singh
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