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=-11.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 195B1C433E2 for ; Thu, 17 Sep 2020 08:11:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A81D021D90 for ; Thu, 17 Sep 2020 08:11:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="qikKcdH3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A81D021D90 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1A39B6B0055; Thu, 17 Sep 2020 04:11:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 152556B005A; Thu, 17 Sep 2020 04:11:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 069DA6B005C; Thu, 17 Sep 2020 04:11:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0190.hostedemail.com [216.40.44.190]) by kanga.kvack.org (Postfix) with ESMTP id E20C46B0055 for ; Thu, 17 Sep 2020 04:11:15 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id A0FD534A3 for ; Thu, 17 Sep 2020 08:11:15 +0000 (UTC) X-FDA: 77271833310.12.group96_25144ee27121 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin12.hostedemail.com (Postfix) with ESMTP id 74C79180001DC for ; Thu, 17 Sep 2020 08:11:15 +0000 (UTC) X-HE-Tag: group96_25144ee27121 X-Filterd-Recvd-Size: 2850 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf50.hostedemail.com (Postfix) with ESMTP for ; Thu, 17 Sep 2020 08:11:14 +0000 (UTC) Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 E99BF2075B; Thu, 17 Sep 2020 08:11:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600330273; bh=eg3lR9x3657HMHEjPx3Tzvtby/XM1NAWCcAT0pbyLKE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qikKcdH3N7nwiA2vnr+2K4DaIFMOUqsim4FVj4Z1SxmQwrkyc8ytc38XpJ263zgCj p0V+lKjtSQR4x+2b9tfZu7J+zygvZOCvJ0FPKyWO/M4dqKFDvnXlepL7++Y7/H7b7O BVYm0xstCL1UNpWUUJbK7RMkmVxqgtrY30VDd+Tc= Date: Thu, 17 Sep 2020 09:11:08 +0100 From: Will Deacon To: Catalin Marinas Cc: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, Dave P Martin , Vincenzo Frascino , Szabolcs Nagy , Kevin Brodsky , Andrey Konovalov , Peter Collingbourne , Andrew Morton , libc-alpha@sourceware.org Subject: Re: [PATCH v9 29/29] arm64: mte: Add Memory Tagging Extension documentation Message-ID: <20200917081107.GA29031@willie-the-truck> References: <20200904103029.32083-1-catalin.marinas@arm.com> <20200904103029.32083-30-catalin.marinas@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200904103029.32083-30-catalin.marinas@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Queue-Id: 74C79180001DC X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 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 Fri, Sep 04, 2020 at 11:30:29AM +0100, Catalin Marinas wrote: > From: Vincenzo Frascino > > Memory Tagging Extension (part of the ARMv8.5 Extensions) provides > a mechanism to detect the sources of memory related errors which > may be vulnerable to exploitation, including bounds violations, > use-after-free, use-after-return, use-out-of-scope and use before > initialization errors. > > Add Memory Tagging Extension documentation for the arm64 linux > kernel support. > > Signed-off-by: Vincenzo Frascino > Co-developed-by: Catalin Marinas > Signed-off-by: Catalin Marinas > Acked-by: Szabolcs Nagy I'm taking this to mean that Szabolcs is happy with the proposed ABI -- please shout if that's not the case! Wasn't there a man page kicking around too? Would be good to see that go upstream (to the manpages project, of course). Will