From: Andrey Konovalov <andreyknvl@google.com> To: Catalin Marinas <catalin.marinas@arm.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com> Cc: Andrew Morton <akpm@linux-foundation.org>, Will Deacon <will.deacon@arm.com>, Dmitry Vyukov <dvyukov@google.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 0/5] kasan: integrate with init_on_alloc/free Date: Mon, 8 Mar 2021 16:55:13 +0100 [thread overview] Message-ID: <cover.1615218180.git.andreyknvl@google.com> (raw) This patch series integrates HW_TAGS KASAN with init_on_alloc/free by initializing memory via the same arm64 instruction that sets memory tags. This is expected to improve HW_TAGS KASAN performance when init_on_alloc/free is enabled. The exact perfomance numbers are unknown as MTE-enabled hardware doesn't exist yet. Changes v1->v2: - Add and use kasan_has_integrated_init() helper. - Update comments to not explicitly mention relation between HW_TAGS KASAN and memory init. - Fix non initting memory with kasan=off by checking kasan_enabled() instead of IS_ENABLED(CONFIG_KASAN_HW_TAGS). Andrey Konovalov (5): arm64: kasan: allow to init memory when setting tags kasan: init memory in kasan_(un)poison for HW_TAGS kasan, mm: integrate page_alloc init with HW_TAGS kasan, mm: integrate slab init_on_alloc with HW_TAGS kasan, mm: integrate slab init_on_free with HW_TAGS arch/arm64/include/asm/memory.h | 4 +- arch/arm64/include/asm/mte-kasan.h | 20 ++++++--- include/linux/kasan.h | 48 +++++++++++++------- lib/test_kasan.c | 4 +- mm/kasan/common.c | 45 +++++++++---------- mm/kasan/generic.c | 12 ++--- mm/kasan/kasan.h | 19 ++++---- mm/kasan/shadow.c | 10 ++--- mm/kasan/sw_tags.c | 2 +- mm/mempool.c | 4 +- mm/page_alloc.c | 37 +++++++++++----- mm/slab.c | 43 ++++++++++-------- mm/slab.h | 17 ++++++-- mm/slub.c | 70 +++++++++++++++--------------- 14 files changed, 196 insertions(+), 139 deletions(-) -- 2.30.1.766.gb4fecdf3b7-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>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com> Cc: Andrew Morton <akpm@linux-foundation.org>, Will Deacon <will.deacon@arm.com>, Dmitry Vyukov <dvyukov@google.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 0/5] kasan: integrate with init_on_alloc/free Date: Mon, 8 Mar 2021 16:55:13 +0100 [thread overview] Message-ID: <cover.1615218180.git.andreyknvl@google.com> (raw) This patch series integrates HW_TAGS KASAN with init_on_alloc/free by initializing memory via the same arm64 instruction that sets memory tags. This is expected to improve HW_TAGS KASAN performance when init_on_alloc/free is enabled. The exact perfomance numbers are unknown as MTE-enabled hardware doesn't exist yet. Changes v1->v2: - Add and use kasan_has_integrated_init() helper. - Update comments to not explicitly mention relation between HW_TAGS KASAN and memory init. - Fix non initting memory with kasan=off by checking kasan_enabled() instead of IS_ENABLED(CONFIG_KASAN_HW_TAGS). Andrey Konovalov (5): arm64: kasan: allow to init memory when setting tags kasan: init memory in kasan_(un)poison for HW_TAGS kasan, mm: integrate page_alloc init with HW_TAGS kasan, mm: integrate slab init_on_alloc with HW_TAGS kasan, mm: integrate slab init_on_free with HW_TAGS arch/arm64/include/asm/memory.h | 4 +- arch/arm64/include/asm/mte-kasan.h | 20 ++++++--- include/linux/kasan.h | 48 +++++++++++++------- lib/test_kasan.c | 4 +- mm/kasan/common.c | 45 +++++++++---------- mm/kasan/generic.c | 12 ++--- mm/kasan/kasan.h | 19 ++++---- mm/kasan/shadow.c | 10 ++--- mm/kasan/sw_tags.c | 2 +- mm/mempool.c | 4 +- mm/page_alloc.c | 37 +++++++++++----- mm/slab.c | 43 ++++++++++-------- mm/slab.h | 17 ++++++-- mm/slub.c | 70 +++++++++++++++--------------- 14 files changed, 196 insertions(+), 139 deletions(-) -- 2.30.1.766.gb4fecdf3b7-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:[~2021-03-08 15:56 UTC|newest] Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-08 15:55 Andrey Konovalov [this message] 2021-03-08 15:55 ` [PATCH v2 0/5] kasan: integrate with init_on_alloc/free Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` [PATCH v2 1/5] arm64: kasan: allow to init memory when setting tags Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 16:58 ` Catalin Marinas 2021-03-08 16:58 ` Catalin Marinas 2021-03-09 13:09 ` Andrey Konovalov 2021-03-09 13:09 ` Andrey Konovalov 2021-03-09 13:09 ` Andrey Konovalov 2021-03-08 15:55 ` [PATCH v2 2/5] kasan: init memory in kasan_(un)poison for HW_TAGS Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` [PATCH v2 3/5] kasan, mm: integrate page_alloc init with HW_TAGS Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 16:07 ` Marco Elver 2021-03-08 16:07 ` Marco Elver 2021-03-08 15:55 ` [PATCH v2 4/5] kasan, mm: integrate slab init_on_alloc " Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 16:24 ` Marco Elver 2021-03-08 16:24 ` Marco Elver 2021-03-08 15:55 ` [PATCH v2 5/5] kasan, mm: integrate slab init_on_free " Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 15:55 ` Andrey Konovalov 2021-03-08 16:27 ` Marco Elver 2021-03-08 16:27 ` Marco Elver
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