Messages in this thread | | | From | Daniel Axtens <> | Subject | [PATCH v16 0/4] KASAN core changes for ppc64 radix KASAN | Date | Thu, 24 Jun 2021 13:40:46 +1000 |
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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/ )
v16 applies to next-20210622. There should be no noticeable changes to other platforms.
Changes since v15: Review comments from Andrey. Thanks Andrey.
Changes since v14: Included a bunch of Reviewed-by:s, thanks Christophe and Marco. Cleaned up the build time error #ifdefs, thanks Christophe.
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
arch/s390/include/asm/pgtable.h | 2 -- include/asm-generic/pgtable-nop4d.h | 1 - include/linux/kasan.h | 6 +++--- include/linux/pgtable.h | 22 ++++++++++++++++++++++ lib/Kconfig.kasan | 12 ++++++++++++ mm/kasan/common.c | 3 +++ mm/kasan/generic.c | 3 +++ mm/kasan/init.c | 6 +++--- mm/kasan/kasan.h | 6 ++++++ mm/kasan/shadow.c | 6 ++++++ 10 files changed, 58 insertions(+), 9 deletions(-)
-- 2.30.2
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