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=-7.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5ECC0C2B9F4 for ; Tue, 22 Jun 2021 14:22:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38D6D611BF for ; Tue, 22 Jun 2021 14:22:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231752AbhFVOYP (ORCPT ); Tue, 22 Jun 2021 10:24:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:47294 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231478AbhFVOYN (ORCPT ); Tue, 22 Jun 2021 10:24:13 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (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 A66A1611BF; Tue, 22 Jun 2021 14:21:57 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=hot-poop.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1lvhHn-0097g1-MJ; Tue, 22 Jun 2021 15:21:55 +0100 From: Marc Zyngier To: Catalin Marinas , Will Deacon , Steven Price 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 Subject: Re: [PATCH v17 0/6] MTE support for KVM guest Date: Tue, 22 Jun 2021 15:21:51 +0100 Message-Id: <162437105102.29544.14666831489362675099.b4-ty@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210621111716.37157-1-steven.price@arm.com> References: <20210621111716.37157-1-steven.price@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: catalin.marinas@arm.com, will@kernel.org, steven.price@arm.com, linux-kernel@vger.kernel.org, Dave.Martin@arm.com, peter.maydell@linaro.org, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, quintela@redhat.com, dgilbert@redhat.com, drjones@redhat.com, qemu-devel@nongnu.org, tglx@linutronix.de, james.morse@arm.com, richard.henderson@linaro.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Cheers, M. -- Without deviation from the norm, progress is not possible.