]> git.baikalelectronics.ru Git - kernel.git/commit
arm64: kasan: align allocations for HW_TAGS
authorAndrey Konovalov <andreyknvl@google.com>
Tue, 22 Dec 2020 20:01:52 +0000 (12:01 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Dec 2020 20:55:08 +0000 (12:55 -0800)
commitdc09b29fd0718300fad79d327d275b6ffb6d3315
tree716639c3b469f0e9894a5a34299330a760e61381
parentc746170d6a48b59d1233b375905f7faef6ce80bc
arm64: kasan: align allocations for HW_TAGS

Hardware tag-based KASAN uses the memory tagging approach, which requires
all allocations to be aligned to the memory granule size.  Align the
allocations to MTE_GRANULE_SIZE via ARCH_SLAB_MINALIGN when
CONFIG_KASAN_HW_TAGS is enabled.

Link: https://lkml.kernel.org/r/fe64131606b1c2aabfd34ae99554c0d9df18eb19.1606161801.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/arm64/include/asm/cache.h