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 0/7] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32
Date: Mon, 29 May 2017 17:31:54 +0200 (CEST) [thread overview]
Message-ID: <cover.1496070452.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.
It superseeds the previous patch set identified "Fix kernel protection
and implement CONFIG_DEBUG_RODATA on PPC32"
This set is based on Balbir Singh <bsingharora@gmail.com> set identified
"Enable STRICT_KERNEL_RWX" and applies on top of it.
At the end we take the opportunity to get rid of some unneccessary/outdated
fixmap stuff.
Christophe Leroy (7):
powerpc/mm: rename map_page() to map_kernel_page() on PPC32
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: remove __this_fixmap_does_not_exist()
powerpc/mm: Simplify __set_fixmap()
arch/powerpc/Kconfig | 3 +-
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/8xx_mmu.c | 2 +-
arch/powerpc/mm/dma-noncoherent.c | 2 +-
arch/powerpc/mm/init_32.c | 6 +++
arch/powerpc/mm/mem.c | 5 +-
arch/powerpc/mm/mmu_decl.h | 4 +-
arch/powerpc/mm/pgtable_32.c | 73 ++++++++++++++++------------
11 files changed, 69 insertions(+), 44 deletions(-)
--
2.12.0
next reply other threads:[~2017-05-29 15:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-29 15:31 Christophe Leroy [this message]
2017-05-29 15:31 ` [PATCH 1/7] powerpc/mm: rename map_page() to map_kernel_page() on PPC32 Christophe Leroy
2017-05-30 1:33 ` Balbir Singh
2017-05-30 10:50 ` Michael Ellerman
2017-05-30 12:46 ` Christophe LEROY
2017-06-08 4:07 ` [1/7] " Michael Ellerman
2017-05-29 15:31 ` [PATCH 2/7] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs Christophe Leroy
2017-05-29 15:32 ` [PATCH 3/7] powerpc/mm: Fix kernel RAM protection after freeing unused memory on PPC32 Christophe Leroy
2017-05-30 1:51 ` Balbir Singh
2017-05-29 15:32 ` [PATCH 4/7] powerpc/mm: Implement STRICT_KERNEL_RWX " Christophe Leroy
2017-05-29 15:32 ` [PATCH 5/7] powerpc/mm: declare some local functions static Christophe Leroy
2017-05-29 15:32 ` [PATCH 6/7] powerpc/mm: remove __this_fixmap_does_not_exist() Christophe Leroy
2017-06-05 10:21 ` [6/7] " Michael Ellerman
2017-05-29 15:32 ` [PATCH 7/7] powerpc/mm: Simplify __set_fixmap() Christophe Leroy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1496070452.git.christophe.leroy@c-s.fr \
--to=christophe.leroy@c-s.fr \
--cc=benh@kernel.crashing.org \
--cc=bsingharora@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=oss@buserror.net \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).