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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 AE2AFC43603 for ; Thu, 12 Dec 2019 02:13:45 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 64438208C3 for ; Thu, 12 Dec 2019 02:13:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64438208C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; 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Thu, 12 Dec 2019 02:13:43 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id elAc88e_SQbC for ; Thu, 12 Dec 2019 02:13:41 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by fraxinus.osuosl.org (Postfix) with ESMTPS id BCBAD86EA2 for ; Thu, 12 Dec 2019 02:13:41 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Dec 2019 18:13:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,303,1571727600"; d="scan'208";a="225748499" Received: from allen-box.sh.intel.com (HELO [10.239.159.136]) ([10.239.159.136]) by orsmga002.jf.intel.com with ESMTP; 11 Dec 2019 18:13:38 -0800 Subject: Re: [PATCH 1/1] iommu/vt-d: Fix dmar pte read access not set error To: Joerg Roedel , David Woodhouse , ashok.raj@intel.com, jacob.jun.pan@intel.com, kevin.tian@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20191211014015.7898-1-baolu.lu@linux.intel.com> <20191212014952.vlrmxrk2cebwxjnp@cantor> From: Lu Baolu Message-ID: <6f3bcad9-b9b3-b349-fdad-ce53a79a665b@linux.intel.com> Date: Thu, 12 Dec 2019 10:12:53 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: <20191212014952.vlrmxrk2cebwxjnp@cantor> Content-Language: en-US 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" SGksCgpPbiAxMi8xMi8xOSA5OjQ5IEFNLCBKZXJyeSBTbml0c2VsYWFyIHdyb3RlOgo+IE9uIFdl ZCBEZWMgMTEgMTksIEx1IEJhb2x1IHdyb3RlOgo+PiBJZiB0aGUgZGVmYXVsdCBETUEgZG9tYWlu IG9mIGEgZ3JvdXAgZG9lc24ndCBmaXQgYSBkZXZpY2UsIGl0Cj4+IHdpbGwgc3RpbGwgc2l0IGlu IHRoZSBncm91cCBidXQgdXNlIGEgcHJpdmF0ZSBpZGVudGl0eSBkb21haW4uCj4+IFdoZW4gbWFw L3VubWFwL2lvdmFfdG9fcGh5cyBjb21lIHRocm91Z2ggaW9tbXUgQVBJLCB0aGUgZHJpdmVyCj4+ IHNob3VsZCBzdGlsbCBzZXJ2ZSB0aGVtLCBvdGhlcndpc2UsIG90aGVyIGRldmljZXMgaW4gdGhl IHNhbWUKPj4gZ3JvdXAgd2lsbCBiZSBpbXBhY3RlZC4gU2luY2UgaWRlbnRpdHkgZG9tYWluIGhh cyBiZWVuIG1hcHBlZAo+PiB3aXRoIHRoZSB3aG9sZSBhdmFpbGFibGUgbWVtb3J5IHNwYWNlIGFu ZCBSTVJScywgd2UgZG9uJ3QgbmVlZAo+PiB0byB3b3JyeSBhYm91dCB0aGUgaW1wYWN0IG9uIGl0 Lgo+Pgo+PiBMaW5rOiBodHRwczovL3d3dy5zcGluaWNzLm5ldC9saXN0cy9pb21tdS9tc2c0MDQx Ni5odG1sCj4+IENjOiBKZXJyeSBTbml0c2VsYWFyIDxqc25pdHNlbEByZWRoYXQuY29tPgo+PiBS ZXBvcnRlZC1ieTogSmVycnkgU25pdHNlbGFhciA8anNuaXRzZWxAcmVkaGF0LmNvbT4KPj4gRml4 ZXM6IDk0MjA2N2YxYjZiOTcgKCJpb21tdS92dC1kOiBJZGVudGlmeSBkZWZhdWx0IGRvbWFpbnMg cmVwbGFjZWQgCj4+IHdpdGggcHJpdmF0ZSIpCj4+IENjOiBzdGFibGVAdmdlci5rZXJuZWwub3Jn ICMgdjUuMysKPj4gU2lnbmVkLW9mZi1ieTogTHUgQmFvbHUgPGJhb2x1Lmx1QGxpbnV4LmludGVs LmNvbT4KPiAKPiBSZXZpZXdlZC1ieTogSmVycnkgU25pdHNlbGFhciA8anNuaXRzZWxAcmVkaGF0 LmNvbT4KCkNhbiB5b3UgcGxlYXNlIHRyeSB0aGlzIGZpeCBhbmQgY2hlY2sgd2hldGhlciBpdCBj YW4gZml4IHlvdXIgcHJvYmxlbT8KSWYgaXQgaGVscHMsIGRvIHlvdSBtaW5kIGFkZGluZyBhIFRl c3RlZC1ieT8KCkJlc3QgcmVnYXJkcywKYmFvbHUKCj4gCj4+IC0tLQo+PiBkcml2ZXJzL2lvbW11 L2ludGVsLWlvbW11LmMgfCA4IC0tLS0tLS0tCj4+IDEgZmlsZSBjaGFuZ2VkLCA4IGRlbGV0aW9u cygtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pb21tdS9pbnRlbC1pb21tdS5jIGIvZHJp dmVycy9pb21tdS9pbnRlbC1pb21tdS5jCj4+IGluZGV4IDBjOGQ4MWY1NmEzMC4uYjczYmViZWE5 MTQ4IDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2lvbW11L2ludGVsLWlvbW11LmMKPj4gKysrIGIv ZHJpdmVycy9pb21tdS9pbnRlbC1pb21tdS5jCj4+IEBAIC01NDc4LDkgKzU0NzgsNiBAQCBzdGF0 aWMgaW50IGludGVsX2lvbW11X21hcChzdHJ1Y3QgaW9tbXVfZG9tYWluIAo+PiAqZG9tYWluLAo+ PiDCoMKgwqDCoGludCBwcm90ID0gMDsKPj4gwqDCoMKgwqBpbnQgcmV0Owo+Pgo+PiAtwqDCoMKg IGlmIChkbWFyX2RvbWFpbi0+ZmxhZ3MgJiBET01BSU5fRkxBR19MT1NFX0NISUxEUkVOKQo+PiAt wqDCoMKgwqDCoMKgwqAgcmV0dXJuIC1FSU5WQUw7Cj4+IC0KPj4gwqDCoMKgwqBpZiAoaW9tbXVf cHJvdCAmIElPTU1VX1JFQUQpCj4+IMKgwqDCoMKgwqDCoMKgIHByb3QgfD0gRE1BX1BURV9SRUFE Owo+PiDCoMKgwqDCoGlmIChpb21tdV9wcm90ICYgSU9NTVVfV1JJVEUpCj4+IEBAIC01NTIzLDgg KzU1MjAsNiBAQCBzdGF0aWMgc2l6ZV90IGludGVsX2lvbW11X3VubWFwKHN0cnVjdCAKPj4gaW9t bXVfZG9tYWluICpkb21haW4sCj4+IMKgwqDCoMKgLyogQ29wZSB3aXRoIGhvcnJpZCBBUEkgd2hp Y2ggcmVxdWlyZXMgdXMgdG8gdW5tYXAgbW9yZSB0aGFuIHRoZQo+PiDCoMKgwqDCoMKgwqAgc2l6 ZSBhcmd1bWVudCBpZiBpdCBoYXBwZW5zIHRvIGJlIGEgbGFyZ2UtcGFnZSBtYXBwaW5nLiAqLwo+ PiDCoMKgwqDCoEJVR19PTighcGZuX3RvX2RtYV9wdGUoZG1hcl9kb21haW4sIGlvdmEgPj4gVlRE X1BBR0VfU0hJRlQsICZsZXZlbCkpOwo+PiAtwqDCoMKgIGlmIChkbWFyX2RvbWFpbi0+ZmxhZ3Mg JiBET01BSU5fRkxBR19MT1NFX0NISUxEUkVOKQo+PiAtwqDCoMKgwqDCoMKgwqAgcmV0dXJuIDA7 Cj4+Cj4+IMKgwqDCoMKgaWYgKHNpemUgPCBWVERfUEFHRV9TSVpFIDw8IGxldmVsX3RvX29mZnNl dF9iaXRzKGxldmVsKSkKPj4gwqDCoMKgwqDCoMKgwqAgc2l6ZSA9IFZURF9QQUdFX1NJWkUgPDwg bGV2ZWxfdG9fb2Zmc2V0X2JpdHMobGV2ZWwpOwo+PiBAQCAtNTU1Niw5ICs1NTUxLDYgQEAgc3Rh dGljIHBoeXNfYWRkcl90IAo+PiBpbnRlbF9pb21tdV9pb3ZhX3RvX3BoeXMoc3RydWN0IGlvbW11 X2RvbWFpbiAqZG9tYWluLAo+PiDCoMKgwqDCoGludCBsZXZlbCA9IDA7Cj4+IMKgwqDCoMKgdTY0 IHBoeXMgPSAwOwo+Pgo+PiAtwqDCoMKgIGlmIChkbWFyX2RvbWFpbi0+ZmxhZ3MgJiBET01BSU5f RkxBR19MT1NFX0NISUxEUkVOKQo+PiAtwqDCoMKgwqDCoMKgwqAgcmV0dXJuIDA7Cj4+IC0KPj4g wqDCoMKgwqBwdGUgPSBwZm5fdG9fZG1hX3B0ZShkbWFyX2RvbWFpbiwgaW92YSA+PiBWVERfUEFH RV9TSElGVCwgJmxldmVsKTsKPj4gwqDCoMKgwqBpZiAocHRlKQo+PiDCoMKgwqDCoMKgwqDCoCBw aHlzID0gZG1hX3B0ZV9hZGRyKHB0ZSk7Cj4+IC0tIAo+PiAyLjE3LjEKPj4KPiAKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KaW9tbXUgbWFpbGluZyBsaXN0 CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3Vu ZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lvbW11