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=-10.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,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 C9D1AC48BDF for ; Fri, 18 Jun 2021 14:49:02 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9BE96611ED for ; Fri, 18 Jun 2021 14:49:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BE96611ED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OrQ9QBlZyARixesZVjHT6KicsNsPZwUdoIqq3XNOF7I=; b=aX+rOecjNkMla8 mtqLOlFsgj2Goaoxnk8Xi42fQj/ztTLA6RXJZN7tHEs086HJDluYrtiMt5k38EnP+6LlbdVJeZoQP vyPloLg/jczUMFKWq+lzvTAjsRAG/vLghbyd/PHyFwQscksO73r1XAEPc7lNfIbE84FyrZBn1WOAs p6M9sHHgcHkUfubm0VSGriy1TEsEaOzMd/wsxRpzJLtZD4QT2tfKPEQARKOfojwLNx1unhS3hnuix vVayN/JQlUF+BgnaS+MoQJx02eeSB4QFAW9NvBU8c5YvgCQBXH6V9NyAu/g6J1jTU22C1XY0Y6ahw 8oHj58of5zSDcq4awJcQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1luFmC-00EYU3-SQ; Fri, 18 Jun 2021 14:47:20 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1luFm5-00EYTN-D3 for linux-arm-kernel@lists.infradead.org; Fri, 18 Jun 2021 14:47:18 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5EB796008E; Fri, 18 Jun 2021 14:47:10 +0000 (UTC) Date: Fri, 18 Jun 2021 15:47:08 +0100 From: Catalin Marinas To: Steven Price Cc: Marc Zyngier , Will Deacon , James Morse , Julien Thierry , Suzuki K Poulose , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Dave Martin , Mark Rutland , Thomas Gleixner , qemu-devel@nongnu.org, Juan Quintela , "Dr. David Alan Gilbert" , Richard Henderson , Peter Maydell , Andrew Jones Subject: Re: [PATCH v16 3/7] KVM: arm64: Introduce MTE VM feature Message-ID: <20210618144707.GF16116@arm.com> References: <20210618132826.54670-1-steven.price@arm.com> <20210618132826.54670-4-steven.price@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210618132826.54670-4-steven.price@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210618_074713_516645_BD1143F7 X-CRM114-Status: GOOD ( 10.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jun 18, 2021 at 02:28:22PM +0100, Steven Price wrote: > Add a new VM feature 'KVM_ARM_CAP_MTE' which enables memory tagging > for a VM. This will expose the feature to the guest and automatically > tag memory pages touched by the VM as PG_mte_tagged (and clear the tag > storage) to ensure that the guest cannot see stale tags, and so that > the tags are correctly saved/restored across swap. > > Actually exposing the new capability to user space happens in a later > patch. > > Signed-off-by: Steven Price This works for me: Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel