From: Andrey Konovalov <andreyknvl@google.com> To: Andrew Morton <akpm@linux-foundation.org>, Catalin Marinas <catalin.marinas@arm.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Dmitry Vyukov <dvyukov@google.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com> Cc: Will Deacon <will.deacon@arm.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com>, Branislav Rankov <Branislav.Rankov@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH v2 00/12] kasan: optimizations and fixes for HW_TAGS Date: Fri, 5 Feb 2021 16:39:01 +0100 [thread overview] Message-ID: <cover.1612538932.git.andreyknvl@google.com> (raw) This patchset goes on top of: 1. Vincenzo's async support patches [1], and 2. "kasan: untag addresses for KFENCE" fix [2] (already in mm). [1] https://lore.kernel.org/linux-arm-kernel/20210130165225.54047-1-vincenzo.frascino@arm.com/ [2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=akpm&id=dec4728fab910da0c86cf9a97e980f4244ebae9f This patchset makes the HW_TAGS mode more efficient, mostly by reworking poisoning approaches and simplifying/inlining some internal helpers. With this change, the overhead of HW_TAGS annotations excluding setting and checking memory tags is ~3%. The performance impact caused by tags will be unknown until we have hardware that supports MTE. As a side-effect, this patchset speeds up generic KASAN by ~15%. Andrey Konovalov (12): kasan, mm: don't save alloc stacks twice kasan, mm: optimize kmalloc poisoning kasan: optimize large kmalloc poisoning kasan: clean up setting free info in kasan_slab_free kasan: unify large kfree checks kasan: rework krealloc tests kasan, mm: fail krealloc on freed objects kasan, mm: optimize krealloc poisoning kasan: ensure poisoning size alignment arm64: kasan: simplify and inline MTE functions kasan: inline HW_TAGS helper functions arm64: kasan: export MTE symbols for KASAN tests arch/arm64/include/asm/cache.h | 1 - arch/arm64/include/asm/kasan.h | 1 + arch/arm64/include/asm/mte-def.h | 2 + arch/arm64/include/asm/mte-kasan.h | 65 ++++++++-- arch/arm64/include/asm/mte.h | 2 - arch/arm64/kernel/mte.c | 48 +------- arch/arm64/lib/mte.S | 16 --- include/linux/kasan.h | 25 ++-- lib/test_kasan.c | 111 +++++++++++++++-- mm/kasan/common.c | 187 ++++++++++++++++++++--------- mm/kasan/kasan.h | 72 +++++++++-- mm/kasan/shadow.c | 53 ++++---- mm/slab_common.c | 18 ++- mm/slub.c | 3 +- 14 files changed, 418 insertions(+), 186 deletions(-) -- 2.30.0.365.g02bc693789-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com> To: Andrew Morton <akpm@linux-foundation.org>, Catalin Marinas <catalin.marinas@arm.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Dmitry Vyukov <dvyukov@google.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com>, Andrey Konovalov <andreyknvl@google.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Andrey Ryabinin <aryabinin@virtuozzo.com>, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com> Subject: [PATCH v2 00/12] kasan: optimizations and fixes for HW_TAGS Date: Fri, 5 Feb 2021 16:39:01 +0100 [thread overview] Message-ID: <cover.1612538932.git.andreyknvl@google.com> (raw) This patchset goes on top of: 1. Vincenzo's async support patches [1], and 2. "kasan: untag addresses for KFENCE" fix [2] (already in mm). [1] https://lore.kernel.org/linux-arm-kernel/20210130165225.54047-1-vincenzo.frascino@arm.com/ [2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=akpm&id=dec4728fab910da0c86cf9a97e980f4244ebae9f This patchset makes the HW_TAGS mode more efficient, mostly by reworking poisoning approaches and simplifying/inlining some internal helpers. With this change, the overhead of HW_TAGS annotations excluding setting and checking memory tags is ~3%. The performance impact caused by tags will be unknown until we have hardware that supports MTE. As a side-effect, this patchset speeds up generic KASAN by ~15%. Andrey Konovalov (12): kasan, mm: don't save alloc stacks twice kasan, mm: optimize kmalloc poisoning kasan: optimize large kmalloc poisoning kasan: clean up setting free info in kasan_slab_free kasan: unify large kfree checks kasan: rework krealloc tests kasan, mm: fail krealloc on freed objects kasan, mm: optimize krealloc poisoning kasan: ensure poisoning size alignment arm64: kasan: simplify and inline MTE functions kasan: inline HW_TAGS helper functions arm64: kasan: export MTE symbols for KASAN tests arch/arm64/include/asm/cache.h | 1 - arch/arm64/include/asm/kasan.h | 1 + arch/arm64/include/asm/mte-def.h | 2 + arch/arm64/include/asm/mte-kasan.h | 65 ++++++++-- arch/arm64/include/asm/mte.h | 2 - arch/arm64/kernel/mte.c | 48 +------- arch/arm64/lib/mte.S | 16 --- include/linux/kasan.h | 25 ++-- lib/test_kasan.c | 111 +++++++++++++++-- mm/kasan/common.c | 187 ++++++++++++++++++++--------- mm/kasan/kasan.h | 72 +++++++++-- mm/kasan/shadow.c | 53 ++++---- mm/slab_common.c | 18 ++- mm/slub.c | 3 +- 14 files changed, 418 insertions(+), 186 deletions(-) -- 2.30.0.365.g02bc693789-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-02-05 23:47 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-05 15:39 Andrey Konovalov [this message] 2021-02-05 15:39 ` [PATCH v2 00/12] kasan: optimizations and fixes for HW_TAGS Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 01/12] kasan, mm: don't save alloc stacks twice Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 02/12] kasan, mm: optimize kmalloc poisoning Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 03/12] kasan: optimize large " Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 04/12] kasan: clean up setting free info in kasan_slab_free Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 05/12] kasan: unify large kfree checks Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 06/12] kasan: rework krealloc tests Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 07/12] kasan, mm: fail krealloc on freed objects Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 08/12] kasan, mm: optimize krealloc poisoning Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 09/12] kasan: ensure poisoning size alignment Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 10/12] arm64: kasan: simplify and inline MTE functions Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 11/12] kasan: inline HW_TAGS helper functions Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` [PATCH v2 12/12] arm64: kasan: export MTE symbols for KASAN tests Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-05 15:39 ` Andrey Konovalov 2021-02-08 17:42 ` Christoph Hellwig 2021-02-08 17:42 ` Christoph Hellwig 2021-02-09 15:18 ` Andrey Konovalov 2021-02-09 15:18 ` Andrey Konovalov 2021-02-09 15:18 ` Andrey Konovalov 2021-02-05 16:25 ` [PATCH v2 00/12] kasan: optimizations and fixes for HW_TAGS Andrey Konovalov 2021-02-05 16:25 ` Andrey Konovalov 2021-02-05 16:25 ` Andrey Konovalov 2021-02-05 16:53 ` Andrey Konovalov 2021-02-05 16:53 ` Andrey Konovalov 2021-02-05 16:53 ` Andrey Konovalov
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