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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 4AAC0C433DB for ; Fri, 19 Mar 2021 17:41:42 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E662661925 for ; Fri, 19 Mar 2021 17:41:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E662661925 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 74A626B0073; Fri, 19 Mar 2021 13:41:41 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6F8176B0074; Fri, 19 Mar 2021 13:41:41 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5C45D6B0075; Fri, 19 Mar 2021 13:41:41 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0088.hostedemail.com [216.40.44.88]) by kanga.kvack.org (Postfix) with ESMTP id 3EC486B0073 for ; Fri, 19 Mar 2021 13:41:41 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id E81CB8249980 for ; Fri, 19 Mar 2021 17:41:40 +0000 (UTC) X-FDA: 77937341160.29.16A076C Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf14.hostedemail.com (Postfix) with ESMTP id BC180C0042D8 for ; Fri, 19 Mar 2021 17:41:20 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id E8E2661925; Fri, 19 Mar 2021 17:41:10 +0000 (UTC) Date: Fri, 19 Mar 2021 17:41:08 +0000 From: Catalin Marinas To: Lecopzer Chen Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, will@kernel.org, dan.j.williams@intel.com, aryabinin@virtuozzo.com, glider@google.com, dvyukov@google.com, akpm@linux-foundation.org, linux-mediatek@lists.infradead.org, yj.chiang@mediatek.com, ardb@kernel.org, andreyknvl@google.com, broonie@kernel.org, linux@roeck-us.net, rppt@kernel.org, tyhicks@linux.microsoft.com, robin.murphy@arm.com, vincenzo.frascino@arm.com, gustavoars@kernel.org, lecopzer@gmail.com Subject: Re: [PATCH v3 0/5] arm64: kasan: support CONFIG_KASAN_VMALLOC Message-ID: <20210319174108.GD6832@arm.com> References: <20210206083552.24394-1-lecopzer.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210206083552.24394-1-lecopzer.chen@mediatek.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: BC180C0042D8 X-Stat-Signature: 3jz1qw6jwuqspqa8wb7rwrj4gzbtbq4t Received-SPF: none (kernel.org>: No applicable sender policy available) receiver=imf14; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: none/none X-HE-Tag: 1616175680-723787 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: Hi Lecopzer, On Sat, Feb 06, 2021 at 04:35:47PM +0800, Lecopzer Chen wrote: > Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > ("kasan: support backing vmalloc space with real shadow memory") > > Acroding to how x86 ported it [1], they early allocated p4d and pgd, > but in arm64 I just simulate how KAsan supports MODULES_VADDR in arm64 > by not to populate the vmalloc area except for kimg address. Do you plan an update to a newer kernel like 5.12-rc3? > Signed-off-by: Lecopzer Chen > Acked-by: Andrey Konovalov > Tested-by: Andrey Konovalov > Tested-by: Ard Biesheuvel You could move these to individual patches rather than the cover letter, assuming that they still stand after the changes you've made. Also note that Andrey K no longer has the @google.com email address if you cc him on future patches (replace it with @gmail.com). Thanks. -- Catalin