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=-6.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 DAFCBC4338F for ; Mon, 26 Jul 2021 11:34:05 +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 A8B4660EB2 for ; Mon, 26 Jul 2021 11:34:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A8B4660EB2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=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-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Cc:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lM3kkR4gK+OFoed8CZjuMf8oihofQTCBDgbEGWPPDA0=; b=IG+IhiGfckLl3gX4q64qmp0Npv 78oEOvEDogcMtZk7n+pBJRCqSkIGpwKRtgH8z4smJ3DdvVgx280/1mrPw4dISjWgJOuBEB3veWBOU +b8Eu5oJyQB48hu6yv5hGqtr5dGI+hEwFqVU0wxwXlvU9eua6YudQONm5rd5Diq1c43vvNaDVRwPB E3MllGDEP8FKaS1TtD3RgzW4m/ozX/rPbkP0fMx+26RhdH03q0G++FqZwwTCYUHKf9EXQgQzRjzfj Zk5kR3MOIqaFLi5Vgola7GvnimVGuQqCCdA6AEoIPXhmz0Dcmz21cCtoCXNcH8vx2Eq8nUHqJ46WU JHTCRSVw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m7ypj-00B0tW-QL; Mon, 26 Jul 2021 11:31:43 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m7ypd-00B0sL-TX for linux-arm-kernel@lists.infradead.org; Mon, 26 Jul 2021 11:31:39 +0000 X-IronPort-AV: E=McAfee;i="6200,9189,10056"; a="199402680" X-IronPort-AV: E=Sophos;i="5.84,270,1620716400"; d="scan'208";a="199402680" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2021 04:31:35 -0700 X-IronPort-AV: E=Sophos;i="5.84,270,1620716400"; d="scan'208";a="504862219" Received: from blu2-mobl3.ccr.corp.intel.com (HELO [10.254.214.209]) ([10.254.214.209]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2021 04:31:33 -0700 Cc: baolu.lu@linux.intel.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, suravee.suthikulpanit@amd.com, john.garry@huawei.com, dianders@chromium.org Subject: Re: [PATCH 18/23] iommu: Express DMA strictness via the domain type To: Robin Murphy , joro@8bytes.org, will@kernel.org References: <37708e21b55e17eb074ef145afc2157cd0192abe.1626888445.git.robin.murphy@arm.com> <77057c4b-479b-c5b8-4666-f16e294552d1@arm.com> From: Lu Baolu Message-ID: <832b7db0-4eb2-9151-c2b3-db709aee3230@linux.intel.com> Date: Mon, 26 Jul 2021 19:31:30 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <77057c4b-479b-c5b8-4666-f16e294552d1@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210726_043138_037122_8993B593 X-CRM114-Status: UNSURE ( 9.19 ) X-CRM114-Notice: Please train this message. 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjAyMS83LzI2IDE2OjI3LCBSb2JpbiBNdXJwaHkgd3JvdGU6Cj4gT24gMjAyMS0wNy0yNCAw NjoyOSwgTHUgQmFvbHUgd3JvdGU6Cj4+IEhpIFJvYmluLAo+Pgo+PiBPbiAyMDIxLzcvMjIgMjoy MCwgUm9iaW4gTXVycGh5IHdyb3RlOgo+Pj4gRWxpbWluYXRlIHRoZSBpb21tdV9nZXRfZG1hX3N0 cmljdCgpIGluZGlyZWN0aW9uIGFuZCBwaXBlIHRoZQo+Pj4gaW5mb3JtYXRpb24gdGhyb3VnaCB0 aGUgZG9tYWluIHR5cGUgZnJvbSB0aGUgYmVnaW5uaW5nLiBCZXNpZGVzCj4+PiB0aGUgZmxvdyBz aW1wbGlmaWNhdGlvbiB0aGlzIGFsc28gaGFzIHNldmVyYWwgbmljZSBzaWRlLWVmZmVjdHM6Cj4+ Pgo+Pj4gwqAgLSBBdXRvbWF0aWNhbGx5IGltcGxpZXMgc3RyaWN0IG1vZGUgZm9yIHVudHJ1c3Rl ZCBkZXZpY2VzIGJ5Cj4+PiDCoMKgwqAgdmlydHVlIG9mIHRoZWlyIElPTU1VX0RPTUFJTl9ETUEg b3ZlcnJpZGUuCj4+PiDCoCAtIEVuc3VyZXMgdGhhdCB3ZSBvbmx5IGVuZHMgdXAgdXNpbmcgZmx1 c2ggcXVldWVzIGZvciBkcml2ZXJzCj4+PiDCoMKgwqAgd2hpY2ggYXJlIGF3YXJlIG9mIHRoZW0g YW5kIGNhbiBhY3R1YWxseSBiZW5lZml0Lgo+Pgo+PiBJcyB0aGlzIGV4cHJlc3NlZCBieSB2ZW5k b3IgaW9tbXUgZHJpdmVyIGhhcyBvcHMtPmZsdXNoX2lvdGxiX2FsbD8KPiAKPiBObywgaXQncyBs aXRlcmFsbHkgd2hldGhlciAtPmRvbWFpbl9hbGxvYyBhY2NlcHRzIHRoZSBETUFfRE9NQUlOX0ZR IHR5cGUgCj4gb3Igbm90LgoKR2V0IGl0LiBUaGFuayB5b3UhCgpCZXN0IHJlZ2FyZHMsCmJhb2x1 CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1h cm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0t a2VybmVsCg==