linux-kernel - [PATCH v13 0/3] KASAN core changes for ppc64 radix KASAN

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Date:   Wed, 16 Jun 2021 18:02:41 +1000
From:   Daniel Axtens <dja@...ens.net>
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kasan-dev@...glegroups.com, elver@...gle.com,
        akpm@...ux-foundation.org, andreyknvl@...il.com
Cc:     linuxppc-dev@...ts.ozlabs.org, christophe.leroy@...roup.eu,
        aneesh.kumar@...ux.ibm.com, bsingharora@...il.com,
        Daniel Axtens <dja@...ens.net>
Subject: [PATCH v13 0/3] KASAN core changes for ppc64 radix KASAN

Building on the work of Christophe, Aneesh and Balbir, I've ported
KASAN to 64-bit Book3S kernels running on the Radix MMU. I've been
trying this for a while, but we keep having collisions between the
kasan code in the mm tree and the code I want to put in to the ppc
tree.

So this series just contains the kasan core changes that we
need. These can go in via the mm tree. I will then propose the powerpc
changes for a later cycle. (The most recent RFC for the powerpc
changes is in the last series at
https://lore.kernel.org/linux-mm/20210615014705.2234866-1-dja@axtens.net/
)

v13 applies to next-20210611. There should be no noticeable changes to
other platforms.

Changes since v12: respond to Marco's review comments - clean up the
help for ARCH_DISABLE_KASAN_INLINE, and add an arch readiness check to
the new granule poisioning function. Thanks Marco.

Kind regards,
Daniel

Daniel Axtens (3):
  kasan: allow an architecture to disable inline instrumentation
  kasan: allow architectures to provide an outline readiness check
  kasan: define and use MAX_PTRS_PER_* for early shadow tables

 include/linux/kasan.h | 18 +++++++++++++++---
 lib/Kconfig.kasan     | 14 ++++++++++++++
 mm/kasan/common.c     |  4 ++++
 mm/kasan/generic.c    |  3 +++
 mm/kasan/init.c       |  6 +++---
 mm/kasan/kasan.h      |  4 ++++
 mm/kasan/shadow.c     |  8 ++++++++
 7 files changed, 51 insertions(+), 6 deletions(-)

-- 
2.30.2