From: Russell Currey <ruscur@russell.cc>
To: linuxppc-dev@lists.ozlabs.org
Cc: kernel-hardening@lists.openwall.com, Russell Currey <ruscur@russell.cc>
Subject: [PATCH 0/4] Kernel Userspace Protection for Radix MMU
Date: Fri, 23 Nov 2018 01:04:12 +1100 [thread overview]
Message-ID: <20181122140416.3447-1-ruscur@russell.cc> (raw)
Back again, this time based on top of Christophe Leroy's series:
http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=74541
With the magic perk of being the snowpatch maintainer I will try and get
the snowpatch results for this series to be applied on top of that series
so all the tests aren't failures.
There aren't really any major functional changes, just working what I
already did into Christophe's framework. The biggest change is that
execution prevention is now optional, and all the radix-specific code
is now in the radix-specific place where it should be.
Russell Currey (4):
powerpc: Track KUAP state in the PACA
powerpc/64: Setup KUP before feature fixups
powerpc/mm/radix: Use KUEP API for Radix MMU
powerpc/64s: Implement KUAP for Radix MMU
arch/powerpc/include/asm/book3s/64/radix.h | 43 ++++++++++++++++++++
arch/powerpc/include/asm/exception-64e.h | 3 ++
arch/powerpc/include/asm/exception-64s.h | 19 ++++++++-
arch/powerpc/include/asm/mmu.h | 9 +++-
arch/powerpc/include/asm/nohash/32/pte-8xx.h | 8 ++--
arch/powerpc/include/asm/paca.h | 3 ++
arch/powerpc/include/asm/reg.h | 1 +
arch/powerpc/include/asm/uaccess.h | 23 ++++++++++-
arch/powerpc/kernel/asm-offsets.c | 1 +
arch/powerpc/kernel/entry_64.S | 16 +++++++-
arch/powerpc/kernel/setup_64.c | 7 +++-
arch/powerpc/mm/pgtable-radix.c | 21 ++++++++--
arch/powerpc/mm/pkeys.c | 7 +++-
arch/powerpc/platforms/Kconfig.cputype | 2 +
14 files changed, 148 insertions(+), 15 deletions(-)
--
2.19.1
next reply other threads:[~2018-11-22 14:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-22 14:04 Russell Currey [this message]
2018-11-22 14:04 ` [PATCH 1/4] powerpc: Track KUAP state in the PACA Russell Currey
2018-11-28 9:38 ` Christophe Leroy
2018-11-22 14:04 ` [PATCH 2/4] powerpc/64: Setup KUP before feature fixups Russell Currey
2018-11-28 9:38 ` Christophe Leroy
2018-11-22 14:04 ` [PATCH 3/4] powerpc/mm/radix: Use KUEP API for Radix MMU Russell Currey
2018-11-22 14:04 ` [PATCH 4/4] powerpc/64s: Implement KUAP " Russell Currey
2018-11-28 9:39 ` Christophe Leroy
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