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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1F7CC433EF for ; Fri, 3 Dec 2021 12:42:39 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 55E7E6B0072; Fri, 3 Dec 2021 07:42:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 534CF6B0075; Fri, 3 Dec 2021 07:42:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 425226B0078; Fri, 3 Dec 2021 07:42:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0007.hostedemail.com [216.40.44.7]) by kanga.kvack.org (Postfix) with ESMTP id 34C166B0072 for ; Fri, 3 Dec 2021 07:42:29 -0500 (EST) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id EC95282499B9 for ; Fri, 3 Dec 2021 12:42:18 +0000 (UTC) X-FDA: 78876445956.14.B89F8AD Received: from mail-wm1-f42.google.com (mail-wm1-f42.google.com [209.85.128.42]) by imf24.hostedemail.com (Postfix) with ESMTP id 79FFFB0000A2 for ; Fri, 3 Dec 2021 12:42:18 +0000 (UTC) Received: by mail-wm1-f42.google.com with SMTP id c6-20020a05600c0ac600b0033c3aedd30aso2097182wmr.5 for ; Fri, 03 Dec 2021 04:42:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=K6qjVToyPcEHlycO2HNFxJnoTYZ6aOQ5rp3ZUXudbCA=; b=rL72f8vzH8f7cYwRsqF4gj4Qxu8c2GlTrqrumu2a2F7PUM33o50UExXGXs8k4npXl1 qmIpXs9apzavATZ40TwvBFZN3xhBlcNN3ixv+KjMohiXbl8N55nrrb13O4KiFgOMgYuy qyJbJk3Osg0oxy7RjoylqnGqUXe9xDcQd2BCvAMZgMBG9CeRds6I6IfCloQT57j+KzbQ ehFzVV0HZoJzLHquoUPHyhX8F7TeSHdkkEt6sxdwgPzT00Zte259RQ3Uu3QbC85mqaoi 56Ru2X6P/lzkyDdXfPaXlBqlKdP07JpxYvSiT9RMBjYxLHwrE1pQPjNJ9vn5hv9W8v0H n6TQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=K6qjVToyPcEHlycO2HNFxJnoTYZ6aOQ5rp3ZUXudbCA=; b=snAnpcjF1fI5C1YUwLltD18V6crNMc2KAYCNSkZBXkUfquekkA3rzfzJv5feY94BnN 6G+JbVmhAmiG43R8IkxPRytLs45S/MdXwTe/ej38OYJ9Px8anY5s/GfFxuE9EpMvdBcb JFKB95qJgC02qur4q4RrMqRnQN/lLBu7qnYA9sR+tVZ2KaN6pXy5az0jXPHfyna/vYj1 5uFBJTsP73sCyBZNOb3xg+9E24Yw4oyKXAnUOlwtKh07locimqAUYXpYaDa4X4IPGq4H j00cRb19mlmy9uFYql9ExbI6RI2VSkFsXqnj9ecVsA8AYKvMvZNqYpqJ55SJ+xsprZT/ 0vKQ== X-Gm-Message-State: AOAM530+8h1G/mMfDBiifrZ7lwlz+yKv8LCsaPIotaoI9BVj1QiGazGm R+mfcJY9D/CJi3E9yKlPPv3clw== X-Google-Smtp-Source: ABdhPJyO7X8Vj9qWcvyIA1fCz7OcGIZG+FVgEN8mEee9QZg2PITmHDGzsm4Y9LQhPk9kGHgybp1UrA== X-Received: by 2002:a05:600c:299:: with SMTP id 25mr14594606wmk.77.1638535337117; Fri, 03 Dec 2021 04:42:17 -0800 (PST) Received: from elver.google.com ([2a00:79e0:15:13:cb5f:d3e:205e:c7c4]) by smtp.gmail.com with ESMTPSA id a22sm2474329wme.19.2021.12.03.04.42.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Dec 2021 04:42:16 -0800 (PST) Date: Fri, 3 Dec 2021 13:42:10 +0100 From: Marco Elver To: andrey.konovalov@linux.dev Cc: Alexander Potapenko , Vincenzo Frascino , Catalin Marinas , Peter Collingbourne , Andrey Konovalov , Dmitry Vyukov , kasan-dev@googlegroups.com, Andrew Morton , linux-mm@kvack.org, Will Deacon , linux-arm-kernel@lists.infradead.org, Evgenii Stepanov , linux-kernel@vger.kernel.org, Andrey Konovalov Subject: Re: [PATCH 24/31] kasan, vmalloc, arm64: mark vmalloc mappings as pgprot_tagged Message-ID: References: <8557e32739e38d3cdf409789c2b3e1b405c743f4.1638308023.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8557e32739e38d3cdf409789c2b3e1b405c743f4.1638308023.git.andreyknvl@google.com> User-Agent: Mutt/2.0.5 (2021-01-21) X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 79FFFB0000A2 X-Stat-Signature: q7tencmcc7tfgtapud8r6j881yaom31x Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=rL72f8vz; spf=pass (imf24.hostedemail.com: domain of elver@google.com designates 209.85.128.42 as permitted sender) smtp.mailfrom=elver@google.com; dmarc=pass (policy=reject) header.from=google.com X-HE-Tag: 1638535338-319020 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: On Tue, Nov 30, 2021 at 11:07PM +0100, andrey.konovalov@linux.dev wrote: > From: Andrey Konovalov > > HW_TAGS KASAN relies on ARM Memory Tagging Extension (MTE). With MTE, > a memory region must be mapped as MT_NORMAL_TAGGED to allow setting > memory tags via MTE-specific instructions. > > This change adds proper protection bits to vmalloc() allocations. > These allocations are always backed by page_alloc pages, so the tags > will actually be getting set on the corresponding physical memory. > > Signed-off-by: Andrey Konovalov > Co-developed-by: Vincenzo Frascino This is also missing Signed-off-by from Vincenzo.