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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 A9DF2C4743C for ; Wed, 23 Jun 2021 14:09:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8D4F9610C7 for ; Wed, 23 Jun 2021 14:09:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231280AbhFWOLW (ORCPT ); Wed, 23 Jun 2021 10:11:22 -0400 Received: from foss.arm.com ([217.140.110.172]:36088 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230263AbhFWOLV (ORCPT ); Wed, 23 Jun 2021 10:11:21 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D9DADED1; Wed, 23 Jun 2021 07:09:03 -0700 (PDT) Received: from [192.168.1.179] (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2B3B43F718; Wed, 23 Jun 2021 07:09:01 -0700 (PDT) Subject: Re: [PATCH v17 0/6] MTE support for KVM guest To: Marc Zyngier , Catalin Marinas , Will Deacon Cc: linux-kernel@vger.kernel.org, Dave Martin , Peter Maydell , Julien Thierry , Suzuki K Poulose , Juan Quintela , "Dr. David Alan Gilbert" , Andrew Jones , qemu-devel@nongnu.org, Thomas Gleixner , James Morse , Richard Henderson , Mark Rutland , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu References: <20210621111716.37157-1-steven.price@arm.com> <162437105102.29544.14666831489362675099.b4-ty@kernel.org> From: Steven Price Message-ID: <7cc69f75-a6df-0a64-873e-69e438a43bdf@arm.com> Date: Wed, 23 Jun 2021 15:09:00 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <162437105102.29544.14666831489362675099.b4-ty@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22/06/2021 15:21, Marc Zyngier wrote: > On Mon, 21 Jun 2021 12:17:10 +0100, Steven Price wrote: >> This series adds support for using the Arm Memory Tagging Extensions >> (MTE) in a KVM guest. >> >> Changes since v16[1]: >> >> - Dropped the first patch ("Handle race when synchronising tags") as >> it's not KVM specific and by restricting MAP_SHARED in KVM there is >> no longer a dependency. >> >> [...] > > Applied to next, thanks! > > [1/6] arm64: mte: Sync tags for pages where PTE is untagged > commit: 69e3b846d8a753f9f279f29531ca56b0f7563ad0 > [2/6] KVM: arm64: Introduce MTE VM feature > commit: ea7fc1bb1cd1b92b42b1d9273ce7e231d3dc9321 > [3/6] KVM: arm64: Save/restore MTE registers > commit: e1f358b5046479d2897f23b1d5b092687c6e7a67 > [4/6] KVM: arm64: Expose KVM_ARM_CAP_MTE > commit: 673638f434ee4a00319e254ade338c57618d6f7e > [5/6] KVM: arm64: ioctl to fetch/store tags in a guest > commit: f0376edb1ddcab19a473b4bf1fbd5b6bbed3705b > [6/6] KVM: arm64: Document MTE capability and ioctl > commit: 04c02c201d7e8149ae336ead69fb64e4e6f94bc9 > > I performed a number of changes in user_mem_abort(), so please > have a look at the result. It is also pretty late in the merge > cycle, so if anything looks amiss, I'll just drop it. It all looks good to me - thanks for making those changes. Steve