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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 8ED74C3F68F for ; Mon, 16 Dec 2019 19:11:44 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 698F620717 for ; Mon, 16 Dec 2019 19:11:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 698F620717 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 32F3022219; Mon, 16 Dec 2019 19:11:44 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id w4MzzxVnB1bk; Mon, 16 Dec 2019 19:11:43 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 37A5B221A9; Mon, 16 Dec 2019 19:11:43 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 24058C1AE8; Mon, 16 Dec 2019 19:11:43 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 40289C077D for ; Mon, 16 Dec 2019 19:11:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 29B35868C0 for ; Mon, 16 Dec 2019 19:11:41 +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 TE-nkQODR-DW for ; Mon, 16 Dec 2019 19:11:38 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 43EF3868A8 for ; Mon, 16 Dec 2019 19:11:38 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Dec 2019 11:11:37 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,322,1571727600"; d="scan'208";a="212129807" Received: from chenyian-desk1.amr.corp.intel.com (HELO [10.3.52.63]) ([10.3.52.63]) by fmsmga007.fm.intel.com with ESMTP; 16 Dec 2019 11:11:37 -0800 Subject: Re: [PATCH 0/3] iommu/vt-d bad RMRR workarounds To: Lu Baolu , Barret Rhoden , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , David Woodhouse , Joerg Roedel , Sohil Mehta References: <20191211194606.87940-1-brho@google.com> <35f49464-0ce5-9998-12a0-624d9683ea18@linux.intel.com> <8a530d5c-22e1-3c2f-98df-45028cc6c771@google.com> <02d69d9a-9c45-d9e7-4c1a-cb5e50590c47@linux.intel.com> From: "Chen, Yian" Message-ID: Date: Mon, 16 Dec 2019 11:11:37 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <02d69d9a-9c45-d9e7-4c1a-cb5e50590c47@linux.intel.com> Content-Language: en-US Cc: iommu@lists.linux-foundation.org, x86@kernel.org, linux-kernel@vger.kernel.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" CgpPbiAxMi8xMy8yMDE5IDU6NTIgUE0sIEx1IEJhb2x1IHdyb3RlOgo+Cj4gT24gMTIvMTMvMTkg MTA6MzEgUE0sIEJhcnJldCBSaG9kZW4gd3JvdGU6Cj4+IE9uIDEyLzExLzE5IDk6NDMgUE0sIEx1 IEJhb2x1IHdyb3RlOgo+Pj4gVGhlIFZULWQgc3BlYyBkZWZpbmVzIHRoZSBCSU9TIGNvbnNpZGVy YXRpb25zIGFib3V0IFJNUlIgaW4gc2VjdGlvbiAKPj4+IDguNDoKPj4+Cj4+PiAiCj4+PiBCSU9T IG11c3QgcmVwb3J0IHRoZSBSTVJSIHJlcG9ydGVkIG1lbW9yeSBhZGRyZXNzZXMgYXMgcmVzZXJ2 ZWQgKG9yIGFzCj4+PiBFRkkgcnVudGltZSkgaW4gdGhlIHN5c3RlbSBtZW1vcnkgbWFwIHJldHVy bmVkIHRocm91Z2ggbWV0aG9kcyBzdWNoIGFzCj4+PiBJTlQxNSwgRUZJIEdldE1lbW9yeU1hcCBl dGMuCj4+PiAiCj4+Pgo+Pj4gU28gd2Ugc2hvdWxkIHRyZWF0IGl0IGFzIGZpcm13YXJlIGJ1ZyBp ZiB0aGUgUk1SUiByYW5nZSBpcyBub3QgCj4+PiBtYXBwZWQgYXMKPj4+IFJFU0VSVkVEIGluIHRo ZSBzeXN0ZW0gbWVtb3J5IG1hcCB0YWJsZS4KPj4+Cj4+PiBBcyBmb3IgaG93IHNob3VsZCB0aGUg ZHJpdmVyIGhhbmRsZSB0aGlzIGNhc2UsIGlnbm9yaW5nIGJ1Z2d5IFJNUlIgd2l0aAo+Pj4gYSB3 YXJuaW5nIG1lc3NhZ2UgbWlnaHQgYmUgYSBwb3NzaWJsZSBjaG9pY2UuCj4+Cj4+IEFncmVlZCwg ZmlybXdhcmUgc2hvdWxkIG5vdCBiZSBkb2luZyB0aGlzLsKgIE15IGZpcnN0IHBhdGNoIGp1c3Qg c2tpcHMgCj4+IHRob3NlIGVudHJpZXMsIGluc3RlYWQgb2YgYWJvcnRpbmcgRE1BUiBwcm9jZXNz aW5nLCBhbmQga2VlcHMgdGhlIAo+PiB3YXJuaW5nLgo+Pgo+Cj4gSGkgWWlhbiwKPgo+IERvZXMg dGhpcyB3b3JrIGZvciB5b3U/Cj4KPiBCZXN0IHJlZ2FyZHMsCj4gYmFvbHUKPgo+CkkgbWFkZSBh IGNvbW1lbnQgaW4gdGhlIHRoZSBwYXRjaCBlbWFpbCAiW1BBVENIIDEvM10gaW9tbXUvdnQtZDog c2tpcCAKUk1SUiBlbnRyaWVzIHRoYXQgZmFpbCB0aGUgc2FuaXR5IGNoZWNrICIKdGhhbmtzLApZ aWFuCgo+PiBTbyBsb25nIGFzIHRoZSBtYWNoaW5lIHN0aWxsIGJvb3RzIGluIGEgc2FmZSBtYW5u ZXIsIEknbSByZWFzb25hYmx5IAo+PiBoYXBweS4KPj4KPj4gVGhhbmtzLAo+Pgo+PiBCYXJyZXQK Pj4KPj4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlv bW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczov L2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==