From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19B0FC433E0 for ; Mon, 8 Mar 2021 15:56:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C9E1B65105 for ; Mon, 8 Mar 2021 15:56:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229775AbhCHPzy (ORCPT ); Mon, 8 Mar 2021 10:55:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229573AbhCHPzW (ORCPT ); Mon, 8 Mar 2021 10:55:22 -0500 Received: from mail-qt1-x84a.google.com (mail-qt1-x84a.google.com [IPv6:2607:f8b0:4864:20::84a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7287CC06174A for ; Mon, 8 Mar 2021 07:55:22 -0800 (PST) Received: by mail-qt1-x84a.google.com with SMTP id j2so2866168qtv.10 for ; Mon, 08 Mar 2021 07:55:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:message-id:mime-version:subject:from:to:cc; bh=FoMoOBBpWzT75wmFJ4xJzRk+FU5MgOdLV7/pA36y50w=; b=gJjqv60KbnOg/rjkTVlwcooSILnYJ3qeJRQgS9DTzcLaQb5lxvLl1m11dOVtbvwUDv IyNBTpOv9RYKxYzlDivy5JN6bnZagUv6vYJdw670cjpVq20vt5lCwFKLdpfhGMfdUo45 u4xs8vMYjYWNyhaPTw8Vvpt9eAscslNnL5twuLXJwVRWHKeBEdNcMzVXMsZSBcGmAfxN zSJytXSh0gYbY4k/oi5SGmevNq7lIDm2ke7+kxf8q8ZYBzCU+Nv0h2hM9SxKJDBM5GRi CmK/me3P/TgWsXjAugxJtgZQbjZaeefObcdBU/5Xa4xOYZui6YqK81n6kXBXsYOs2eJk QgbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:message-id:mime-version:subject:from :to:cc; bh=FoMoOBBpWzT75wmFJ4xJzRk+FU5MgOdLV7/pA36y50w=; b=ENtCt4TvqwVrddNtfT8kv42cLagdZcQ61+4rvChIyONXFoi6YS9RVVPVoGe+cYe9PX pLdFhYBahDyrMGTYytn7DynLT3mxcF67BhHfYbAWMyX/fsYC2Hj4XtXOCL1uxV8V/tvQ YPMeHwvSFCejzc9CkShRW9e495KvbNIZmoCFR1JNss8iEHitcMb4sCUt1vXiA5XiBRZI ixy0v4EzralJjwljlshN1u4UM1CJF1OzEJUMklYcqY9w0X+4xRcMJE4+XCvi3C3BpBFb cmkSO5tSfDxJ10YmUOedYRjNXnV467bIPoozHjiT6wjnWQNoeZ1dc5NOvjPAtFtrmUzi f2LQ== X-Gm-Message-State: AOAM532RygEWiFe4m2iXKNE36N3yOM6efO1yiQATPOEm78NIVgXIb/HI XW1da7qrqbBTI5wK8OPvnZcG2p5GX9h25KZM X-Google-Smtp-Source: ABdhPJxpc8xtWCUHnacmkUYbjfY6hvpOAtCcn6T/A/8xB55wTWfnA/FRfsF9ckMO+6ZAPsDaU0zHb/aq1Bb/PMdk Sender: "andreyknvl via sendgmr" X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:85fb:aac9:69ed:e574]) (user=andreyknvl job=sendgmr) by 2002:a05:6214:1870:: with SMTP id eh16mr8647655qvb.23.1615218921580; Mon, 08 Mar 2021 07:55:21 -0800 (PST) Date: Mon, 8 Mar 2021 16:55:13 +0100 Message-Id: Mime-Version: 1.0 X-Mailer: git-send-email 2.30.1.766.gb4fecdf3b7-goog Subject: [PATCH v2 0/5] kasan: integrate with init_on_alloc/free From: Andrey Konovalov To: Catalin Marinas , Vincenzo Frascino , Alexander Potapenko , Marco Elver Cc: Andrew Morton , Will Deacon , Dmitry Vyukov , Andrey Ryabinin , Peter Collingbourne , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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