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=-9.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_SANE_1 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 2CD87C433E1 for ; Thu, 27 Aug 2020 10:43:11 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EB66C22B40 for ; Thu, 27 Aug 2020 10:43:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="xTE43K29" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EB66C22B40 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=D7lJz0v7rE+zrsKeu63yxWomAEWoCQARfmlUGLF0HQE=; b=xTE43K29IXeUh1yDBabc/3OKV O90CNG1oPeWEwp9xRELDJozCQOW4w5MCDjzURPtpCcyBZdb78jszkFSrMLT3ytrIQ0pShYP6njs5S Q+I5FPQGV3jspY6bp11SmYx21UWA7NV7Vh/EJyQUCHn9ADE6yAFbgGIgCOcQliFjAS6qnJzHQvrgZ wg7vdAn9NF/UE5HaPfxxBcjJmXOBrZAytOa67oEEuSUhNRMvwWA49KlGHlNqQR0f2JaVHi7vsgGnZ bEunyyMJkjG2EbAOIjXPZQiotuv1v1V68YIExdBbOh3WIp35MqyNB2JsYth2/ZXmTu/QiIsorIpA5 2x+bUA6hQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBFLw-0008IU-0R; Thu, 27 Aug 2020 10:41:56 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBFLt-0008Hg-MO for linux-arm-kernel@lists.infradead.org; Thu, 27 Aug 2020 10:41:54 +0000 Received: from gaia (unknown [46.69.195.127]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4F7DE22B40; Thu, 27 Aug 2020 10:41:50 +0000 (UTC) Date: Thu, 27 Aug 2020 11:41:47 +0100 From: Catalin Marinas To: Andrey Konovalov Subject: Re: [PATCH 28/35] kasan: define KASAN_GRANULE_SIZE for HW_TAGS Message-ID: <20200827104147.GG29264@gaia> References: <07455abaab13824579c1b8e50cc038cf8a0f3369.1597425745.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <07455abaab13824579c1b8e50cc038cf8a0f3369.1597425745.git.andreyknvl@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200827_064153_816880_8081C37C X-CRM114-Status: GOOD ( 17.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Marco Elver , Elena Petrova , Kevin Brodsky , Will Deacon , Branislav Rankov , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , Evgenii Stepanov , Andrey Ryabinin , Andrew Morton , Vincenzo Frascino , Dmitry Vyukov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Aug 14, 2020 at 07:27:10PM +0200, Andrey Konovalov wrote: > Hardware tag-based KASAN has granules of MTE_GRANULE_SIZE. Define > KASAN_GRANULE_SIZE to MTE_GRANULE_SIZE for CONFIG_KASAN_HW_TAGS. > > Signed-off-by: Andrey Konovalov > --- > mm/kasan/kasan.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h > index 1d3c7c6ce771..4d8e229f8e01 100644 > --- a/mm/kasan/kasan.h > +++ b/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 You could only include the new asm/mte-def.h file (currently mte_asm.h). > +#define KASAN_GRANULE_SIZE (MTE_GRANULE_SIZE) > +#endif > + > #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) > > #define KASAN_TAG_KERNEL 0xFF /* native kernel pointers tag */ > -- > 2.28.0.220.ged08abb693-goog > -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel