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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 CBAE3C3404D for ; Wed, 19 Feb 2020 10:48:37 +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 9A9A721D56 for ; Wed, 19 Feb 2020 10:48:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A9A721D56 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org 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 6F131204EA; Wed, 19 Feb 2020 10:48:37 +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 zHYLT0Wa41gj; Wed, 19 Feb 2020 10:48:35 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 3BA9A204EE; Wed, 19 Feb 2020 10:48:35 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 356EEC1D80; Wed, 19 Feb 2020 10:48:35 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id CC674C013E for ; Wed, 19 Feb 2020 10:48:33 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id C8F0285C63 for ; Wed, 19 Feb 2020 10:48:33 +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 7vib9AyqjoGw for ; Wed, 19 Feb 2020 10:48:33 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 2B2AC8508A for ; Wed, 19 Feb 2020 10:48:33 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id D9EA136A; Wed, 19 Feb 2020 11:48:29 +0100 (CET) Date: Wed, 19 Feb 2020 11:48:28 +0100 From: Joerg Roedel To: Adrian Huang Subject: Re: [PATCH 1/1] iommu/amd: Fix the configuration of GCR3 table root pointer Message-ID: <20200219104828.GE1961@8bytes.org> References: <20200214104451.16076-1-ahuang12@lenovo.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200214104451.16076-1-ahuang12@lenovo.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: iommu@lists.linux-foundation.org, Adrian Huang 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Fri, Feb 14, 2020 at 06:44:51PM +0800, Adrian Huang wrote: > From: Adrian Huang > > The SPA of the GCR3 table root pointer[51:31] masks 20 bits. However, > this requires 21 bits (Please see the AMD IOMMU specification). > This leads to the potential failure when the bit 51 of SPA of > the GCR3 table root pointer is 1'. > > Signed-off-by: Adrian Huang Applied, thanks. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu