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From: Daniel Axtens <dja@axtens.net>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	kasan-dev@googlegroups.com, elver@google.com,
	akpm@linux-foundation.org, andreyknvl@gmail.com
Cc: linuxppc-dev@lists.ozlabs.org, christophe.leroy@csgroup.eu,
	aneesh.kumar@linux.ibm.com, bsingharora@gmail.com,
	Daniel Axtens <dja@axtens.net>
Subject: [PATCH v14 0/4] KASAN core changes for ppc64 radix KASAN
Date: Thu, 17 Jun 2021 16:39:52 +1000	[thread overview]
Message-ID: <20210617063956.94061-1-dja@axtens.net> (raw)

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.

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
v12 series at
https://lore.kernel.org/linux-mm/20210615014705.2234866-1-dja@axtens.net/
)

v14 applies to next-20210611. There should be no noticeable changes to
other platforms.

Changes since v13: move the MAX_PTR_PER_* definitions out of kasan and
into pgtable.h. Add a build time error to hopefully prevent any
confusion about when the new hook is applicable. Thanks Marco and
Christophe.

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.

Daniel Axtens (4):
  kasan: allow an architecture to disable inline instrumentation
  kasan: allow architectures to provide an outline readiness check
  mm: define default MAX_PTRS_PER_* in include/pgtable.h
  kasan: use MAX_PTRS_PER_* for early shadow tables

             reply	other threads:[~2021-06-17  6:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17  6:39 Daniel Axtens [this message]
2021-06-17  6:39 ` [PATCH v14 1/4] kasan: allow an architecture to disable inline instrumentation Daniel Axtens
2021-06-17  7:06   ` Marco Elver
2021-06-17  6:39 ` [PATCH v14 2/4] kasan: allow architectures to provide an outline readiness check Daniel Axtens
2021-06-17  6:55   ` Christophe Leroy
2021-06-17  6:59   ` Christophe Leroy
2021-06-17  7:06   ` Marco Elver
2021-06-17  6:39 ` [PATCH v14 3/4] mm: define default MAX_PTRS_PER_* in include/pgtable.h Daniel Axtens
2021-06-17  7:00   ` Christophe Leroy
2021-06-17  7:08   ` Marco Elver
2021-06-17  6:39 ` [PATCH v14 4/4] kasan: use MAX_PTRS_PER_* for early shadow tables Daniel Axtens
2021-06-17  7:09   ` Marco Elver

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