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Fri, 30 Jul 2021 06:12:17 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MhPLZoxI9UIR for ; Fri, 30 Jul 2021 06:12:16 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by smtp2.osuosl.org (Postfix) with ESMTPS id EE120400F8 for ; Fri, 30 Jul 2021 06:12:15 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10060"; a="192633882" X-IronPort-AV: E=Sophos;i="5.84,281,1620716400"; d="scan'208";a="192633882" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2021 23:12:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,281,1620716400"; d="scan'208";a="465345103" Received: from allen-box.sh.intel.com (HELO [10.239.159.118]) ([10.239.159.118]) by orsmga008.jf.intel.com with ESMTP; 29 Jul 2021 23:12:12 -0700 Subject: Re: [PATCH v2 18/24] iommu: Express DMA strictness via the domain type To: Robin Murphy , joro@8bytes.org, will@kernel.org References: <50bee17e9248ccfccb33a10238210d4ff4f4cf4d.1627468309.git.robin.murphy@arm.com> From: Lu Baolu Message-ID: Date: Fri, 30 Jul 2021 14:09:54 +0800 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: Content-Language: en-US Cc: linux-kernel@vger.kernel.org, dianders@chromium.org, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gNy8yOS8yMSA1OjM2IFBNLCBSb2JpbiBNdXJwaHkgd3JvdGU6Cj4gT24gMjAyMS0wNy0yOSAw ODoxMywgTHUgQmFvbHUgd3JvdGU6Cj4+IEhpIFJvYmluLAo+Pgo+PiBPbiA3LzI4LzIxIDExOjU4 IFBNLCBSb2JpbiBNdXJwaHkgd3JvdGU6Cj4+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pb21tdS9p b21tdS5jIGIvZHJpdmVycy9pb21tdS9pb21tdS5jCj4+PiBpbmRleCA5ODI1NDUyMzRjZjMuLmVl Y2I1NjU3ZGU2OSAxMDA2NDQKPj4+IC0tLSBhL2RyaXZlcnMvaW9tbXUvaW9tbXUuYwo+Pj4gKysr IGIvZHJpdmVycy9pb21tdS9pb21tdS5jCj4+PiBAQCAtMTM2LDYgKzEzNiw5IEBAIHN0YXRpYyBp bnQgX19pbml0IGlvbW11X3N1YnN5c19pbml0KHZvaWQpCj4+PiDCoMKgwqDCoMKgwqDCoMKgwqAg fQo+Pj4gwqDCoMKgwqDCoCB9Cj4+PiArwqDCoMKgIGlmICghaW9tbXVfZGVmYXVsdF9wYXNzdGhy b3VnaCgpICYmICFpb21tdV9kbWFfc3RyaWN0KQo+Pj4gK8KgwqDCoMKgwqDCoMKgIGlvbW11X2Rl Zl9kb21haW5fdHlwZSA9IElPTU1VX0RPTUFJTl9ETUFfRlE7Cj4+Cj4+IGlvbW11X2RtYV9zdHJp Y3QgY291bGQgYmUgY2hhbmdlZCBsYXRlciBieSB0aGUgdmVuZG9yIGlvbW11IGRyaXZlciB2aWEK Pj4gaW9tbXVfc2V0X2RtYV9zdHJpY3QoKS4gVGhpcyBzZWVtcyBub3QgdG8gYmUgdGhlIHJpZ2h0 IHBsYWNlIHRvIHNldAo+PiBpb21tdV9kZWZfZG9tYWluX3R5cGUuCj4gCj4gQWggeWVzLCBnb29k IGNhdGNoIG9uY2UgYWdhaW4sIHRoYW5rcyEKPiAKPiBJIHRoaW5rIHRoaXMgKmlzKiB0aGUgcmln aHQgcGxhY2UgdG8gaW5pdGlhbGx5IHNldCBpdCB0byBob25vdXIgdGhlIAo+IGNvbW1hbmQtbGlu ZSBvcHRpb24sIHNpbmNlIHRoYXQgbWF0Y2hlcyB3aGF0IHdlIGRvIGZvciBwYXNzdGhyb3VnaC4g Cj4gSG93ZXZlciBhbHNvIGxpa2UgcGFzc3Rocm91Z2ggd2UnbGwgbmVlZCB0byBrZWVwIHRoaW5n cyBpbiBzeW5jIGlmIGl0J3MgCj4gdXBkYXRlZCBsYXRlciwgbGlrZSB0aGlzOgo+IAo+IAo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2lvbW11L2lvbW11LmMgYi9kcml2ZXJzL2lvbW11L2lvbW11LmMK PiBpbmRleCA4N2Q3YjI5OTQzNmUuLjU5M2Q0NTU1YmM1NyAxMDA2NDQKPiAtLS0gYS9kcml2ZXJz L2lvbW11L2lvbW11LmMKPiArKysgYi9kcml2ZXJzL2lvbW11L2lvbW11LmMKPiBAQCAtMzU5LDYg KzM1OSw4IEBAIGVhcmx5X3BhcmFtKCJpb21tdS5zdHJpY3QiLCBpb21tdV9kbWFfc2V0dXApOwo+ ICDCoHZvaWQgaW9tbXVfc2V0X2RtYV9zdHJpY3Qodm9pZCkKPiAgwqB7Cj4gIMKgwqDCoMKgwqDC oMKgIGlvbW11X2RtYV9zdHJpY3QgPSB0cnVlOwo+ICvCoMKgwqDCoMKgwqAgaWYgKGlvbW11X2Rl Zl9kb21haW5fdHlwZSA9PSBJT01NVV9ET01BSU5fRE1BX0ZRKQo+ICvCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgIGlvbW11X2RlZl9kb21haW5fdHlwZSA9IElPTU1VX0RPTUFJTl9ETUE7Cj4g IMKgfQo+IAo+ICDCoHN0YXRpYyBzc2l6ZV90IGlvbW11X2dyb3VwX2F0dHJfc2hvdyhzdHJ1Y3Qg a29iamVjdCAqa29iaiwKPiAKPiAKPiBEb2VzIHRoYXQgc2VlbSByZWFzb25hYmxlPyBJJ20gbm90 IHN1cmUgdGhlcmUncyBhbnkgY2xlYW5lciB3YXkgdG8gZG8gaXQgCj4gc2luY2Ugd2UgZG9uJ3Qg d2FudCB0byBpbmFkdmVydGVudGx5IGNsb2JiZXIgdGhlIGRlZmF1bHQgdHlwZSBpZiB0aGUgCj4g dXNlciBoYXMgZ2l2ZW4gdXMgc29tZXRoaW5nIGZ1bmt5IGxpa2UgImludGVsX2lvbW11PXN0cmlj dCAKPiBpb21tdS5wYXNzdGhyb3VnaD0xIi4KPiAKPiBDaGVlcnMsCj4gUm9iaW4uCj4gCj4+Cj4+ PiArCj4+PiDCoMKgwqDCoMKgIHByX2luZm8oIkRlZmF1bHQgZG9tYWluIHR5cGU6ICVzICVzXG4i LAo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgIGlvbW11X2RvbWFpbl90eXBlX3N0cihpb21tdV9kZWZf ZG9tYWluX3R5cGUpLAo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgIChpb21tdV9jbWRfbGluZSAmIElP TU1VX0NNRF9MSU5FX0RNQV9BUEkpID8KPj4KPj4gQmVzdCByZWdhcmRzLAo+PiBiYW9sdQoKV2l0 aCBhYm92ZSBmaXhlZCwKClJldmlld2VkLWJ5OiBMdSBCYW9sdSA8YmFvbHUubHVAbGludXguaW50 ZWwuY29tPgoKQmVzdCByZWdhcmRzLApiYW9sdQpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgt Zm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4v bGlzdGluZm8vaW9tbXU=