From: Andrey Konovalov <andreyknvl@google.com> To: 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: Andrew Morton <akpm@linux-foundation.org>, 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 00/12] kasan: optimizations and fixes for HW_TAGS Date: Mon, 1 Feb 2021 20:43:24 +0100 [thread overview] Message-ID: <cover.1612208222.git.andreyknvl@google.com> (raw) This patchset goes on top of: 1. Vincenzo's async support patches, and 2. "kasan: untag addresses for KFENCE" fix. 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: remove krealloc side-effect kasan, mm: optimize krealloc poisoning kasan: ensure poisoning size alignment arm64: kasan: simplify and inline MTE functions kasan: always 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 | 64 ++++++++-- 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 | 74 +++++++++--- mm/kasan/shadow.c | 53 ++++---- mm/slab_common.c | 18 ++- mm/slub.c | 3 +- 14 files changed, 419 insertions(+), 186 deletions(-) -- 2.30.0.365.g02bc693789-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com> To: 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>, Andrew Morton <akpm@linux-foundation.org>, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com> Subject: [PATCH 00/12] kasan: optimizations and fixes for HW_TAGS Date: Mon, 1 Feb 2021 20:43:24 +0100 [thread overview] Message-ID: <cover.1612208222.git.andreyknvl@google.com> (raw) This patchset goes on top of: 1. Vincenzo's async support patches, and 2. "kasan: untag addresses for KFENCE" fix. 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: remove krealloc side-effect kasan, mm: optimize krealloc poisoning kasan: ensure poisoning size alignment arm64: kasan: simplify and inline MTE functions kasan: always 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 | 64 ++++++++-- 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 | 74 +++++++++--- mm/kasan/shadow.c | 53 ++++---- mm/slab_common.c | 18 ++- mm/slub.c | 3 +- 14 files changed, 419 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:[~2021-02-01 19:58 UTC|newest] Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-01 19:43 Andrey Konovalov [this message] 2021-02-01 19:43 ` [PATCH 00/12] kasan: optimizations and fixes for HW_TAGS Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` [PATCH 01/12] kasan, mm: don't save alloc stacks twice Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-02 16:06 ` Marco Elver 2021-02-02 16:06 ` Marco Elver 2021-02-02 18:01 ` Andrey Konovalov 2021-02-02 18:01 ` Andrey Konovalov 2021-02-02 18:01 ` Andrey Konovalov 2021-02-02 18:40 ` Marco Elver 2021-02-02 18:40 ` Marco Elver 2021-02-02 18:40 ` Marco Elver 2021-02-01 19:43 ` [PATCH 02/12] kasan, mm: optimize kmalloc poisoning Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-02 16:25 ` Marco Elver 2021-02-02 16:25 ` Marco Elver 2021-02-02 17:15 ` Andrey Konovalov 2021-02-02 17:15 ` Andrey Konovalov 2021-02-02 17:15 ` Andrey Konovalov 2021-02-02 17:39 ` Marco Elver 2021-02-02 17:39 ` Marco Elver 2021-02-02 17:39 ` Marco Elver 2021-02-01 19:43 ` [PATCH 03/12] kasan: optimize large " Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-02 16:57 ` Marco Elver 2021-02-02 16:57 ` Marco Elver 2021-02-01 19:43 ` [PATCH 04/12] kasan: clean up setting free info in kasan_slab_free Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-02 17:03 ` Marco Elver 2021-02-02 17:03 ` Marco Elver 2021-02-01 19:43 ` [PATCH 05/12] kasan: unify large kfree checks Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 12:13 ` Marco Elver 2021-02-03 12:13 ` Marco Elver 2021-02-01 19:43 ` [PATCH 06/12] kasan: rework krealloc tests Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 14:48 ` Marco Elver 2021-02-03 14:48 ` Marco Elver 2021-02-01 19:43 ` [PATCH 07/12] kasan, mm: remove krealloc side-effect Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 15:10 ` Marco Elver 2021-02-03 15:10 ` Marco Elver 2021-02-01 19:43 ` [PATCH 08/12] kasan, mm: optimize krealloc poisoning Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 14:34 ` Marco Elver 2021-02-03 14:34 ` Marco Elver 2021-02-01 19:43 ` [PATCH 09/12] kasan: ensure poisoning size alignment Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 15:31 ` Marco Elver 2021-02-03 15:31 ` Marco Elver 2021-02-01 19:43 ` [PATCH 10/12] arm64: kasan: simplify and inline MTE functions Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 22:44 ` Andrew Morton 2021-02-01 22:44 ` Andrew Morton 2021-02-04 12:39 ` Vincenzo Frascino 2021-02-04 12:39 ` Vincenzo Frascino 2021-02-02 15:42 ` Catalin Marinas 2021-02-02 15:42 ` Catalin Marinas 2021-02-02 18:04 ` Andrey Konovalov 2021-02-02 18:04 ` Andrey Konovalov 2021-02-02 18:04 ` Andrey Konovalov 2021-02-04 12:37 ` Vincenzo Frascino 2021-02-04 12:37 ` Vincenzo Frascino 2021-02-01 19:43 ` [PATCH 11/12] kasan: always inline HW_TAGS helper functions Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-03 15:51 ` Marco Elver 2021-02-03 15:51 ` Marco Elver 2021-02-01 19:43 ` [PATCH 12/12] arm64: kasan: export MTE symbols for KASAN tests Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-01 19:43 ` Andrey Konovalov 2021-02-02 10:46 ` Will Deacon 2021-02-02 10:46 ` Will Deacon 2021-02-02 13:42 ` Andrey Konovalov 2021-02-02 13:42 ` Andrey Konovalov 2021-02-02 13:42 ` Andrey Konovalov 2021-02-02 15:43 ` Catalin Marinas 2021-02-02 15:43 ` Catalin Marinas
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