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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 22DB3C3526B for ; Fri, 18 Dec 2020 22:03:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C887623B87 for ; Fri, 18 Dec 2020 22:03:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C887623B87 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6E37E6B006C; Fri, 18 Dec 2020 17:03:58 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 66C616B007B; Fri, 18 Dec 2020 17:03:58 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 543786B007E; Fri, 18 Dec 2020 17:03:58 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0224.hostedemail.com [216.40.44.224]) by kanga.kvack.org (Postfix) with ESMTP id 3B1CC6B006C for ; Fri, 18 Dec 2020 17:03:58 -0500 (EST) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 06EEF4DC8 for ; Fri, 18 Dec 2020 22:03:58 +0000 (UTC) X-FDA: 77607781356.28.geese96_1e0312527440 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin28.hostedemail.com (Postfix) with ESMTP id DF31D6D6D for ; Fri, 18 Dec 2020 22:03:57 +0000 (UTC) X-HE-Tag: geese96_1e0312527440 X-Filterd-Recvd-Size: 2920 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf50.hostedemail.com (Postfix) with ESMTP for ; Fri, 18 Dec 2020 22:03:57 +0000 (UTC) Date: Fri, 18 Dec 2020 14:03:55 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608329036; bh=QMYVZBUjFli/H6X7hOz80AwmmUTQTOwCo6dvVlQUpWY=; h=From:To:Subject:In-Reply-To:From; b=1jkwA/khmn5vUwITa7pL5MPIFv3HjH//ZUgxEmiK217xdIao3+CwJ9Co2v7stOiZ7 DBsA3FITCZonlHMSI4hrMNJAvAaQKMBTKveSk6mv88gCzcH2T8opOWyuLRfysr9Uff Xmbw6qYshXyKXoy2GRWIoatr7pZfVi0otyEiVO7A= From: Andrew Morton To: akpm@linux-foundation.org, andreyknvl@google.com, aryabinin@virtuozzo.com, Branislav.Rankov@arm.com, catalin.marinas@arm.com, dvyukov@google.com, elver@google.com, eugenis@google.com, glider@google.com, gor@linux.ibm.com, kevin.brodsky@arm.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, vincenzo.frascino@arm.com, will.deacon@arm.com Subject: [patch 46/78] kasan: define KASAN_GRANULE_SIZE for HW_TAGS Message-ID: <20201218220355.eTvuK7ok6%akpm@linux-foundation.org> In-Reply-To: <20201218140046.497484741326828e5b5d46ec@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Andrey Konovalov Subject: kasan: define KASAN_GRANULE_SIZE for HW_TAGS Hardware tag-based KASAN has granules of MTE_GRANULE_SIZE. Define KASAN_GRANULE_SIZE to MTE_GRANULE_SIZE for CONFIG_KASAN_HW_TAGS. Link: https://lkml.kernel.org/r/3d15794b3d1b27447fd7fdf862c073192ba657bd.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Signed-off-by: Vincenzo Frascino Reviewed-by: Marco Elver Reviewed-by: Alexander Potapenko Tested-by: Vincenzo Frascino Cc: Andrey Ryabinin Cc: Branislav Rankov Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Evgenii Stepanov Cc: Kevin Brodsky Cc: Vasily Gorbik Cc: Will Deacon Signed-off-by: Andrew Morton --- mm/kasan/kasan.h | 6 ++++++ 1 file changed, 6 insertions(+) --- a/mm/kasan/kasan.h~kasan-define-kasan_granule_size-for-hw_tags +++ a/mm/kasan/kasan.h @@ -5,7 +5,13 @@ #include #include +#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) +#else +#include +#define KASAN_GRANULE_SIZE MTE_GRANULE_SIZE +#endif + #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) #define KASAN_MEMORY_PER_SHADOW_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) _