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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 A4642C433DF for ; Thu, 27 Aug 2020 10:02:47 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 784ED2075B for ; Thu, 27 Aug 2020 10:02:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 784ED2075B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zhaoxin.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 hemlock.osuosl.org (Postfix) with ESMTP id 4AF408842A; Thu, 27 Aug 2020 10:02:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5KYMG-uuHRUW; Thu, 27 Aug 2020 10:02:44 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 752C38840E; Thu, 27 Aug 2020 10:02:44 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5270EC07FF; Thu, 27 Aug 2020 10:02:44 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 79EABC0051 for ; Thu, 27 Aug 2020 10:02:42 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 5F4FC2042D for ; Thu, 27 Aug 2020 10:02:42 +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 r-CJ5GkUUSyh for ; Thu, 27 Aug 2020 10:02:39 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from ZXSHCAS1.zhaoxin.com (unknown [203.148.12.81]) by silver.osuosl.org (Postfix) with ESMTPS id 057EC21FA9 for ; Thu, 27 Aug 2020 10:02:35 +0000 (UTC) Received: from zxbjmbx1.zhaoxin.com (10.29.252.163) by ZXSHCAS1.zhaoxin.com (10.28.252.161) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 27 Aug 2020 18:02:26 +0800 Received: from localhost.localdomain (61.148.245.65) by zxbjmbx1.zhaoxin.com (10.29.252.163) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 27 Aug 2020 18:02:24 +0800 From: FelixCuioc To: Joerg Roedel , , , David Woodhouse , "Lu Baolu" , Dan Carpenter , Subject: [PATCH v3 0/2] Add support for ACPI device in RMRR Date: Thu, 27 Aug 2020 06:02:15 -0400 Message-ID: <20200827100217.21324-1-FelixCui-oc@zhaoxin.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [61.148.245.65] X-ClientProxiedBy: ZXSHCAS2.zhaoxin.com (10.28.252.162) To zxbjmbx1.zhaoxin.com (10.29.252.163) Cc: TonyWWang-oc@zhaoxin.com, CobeChen-oc@zhaoxin.com 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" BIOS allocate reserved memory ranges that may be DMA targets. BIOS may report each such reserved memory region through the RMRR structures,along with the devices that requires access to the specified reserved memory region. The purpose of this series is to achieve ACPI device in RMRR access reserved memory.Therefore,it is necessary to increase the analysis of acpi device in RMRR and establish a mapping for this device. The first patch adds interfaces for detecting ACPI device in RMRR and in order to distinguish it from pci device, some interface functions are modified. The second patch adds support for probing ACPI device in RMRR. In probe_acpi_namespace_devices(),add support for direct mapping of ACPI device and add support for physical node of acpi device to be NULL. v2->v3: - Add the blank line between functions. - Make dmar_acpi_insert_dev_scope() bool,change the 1/0 to true/false and add a comment explaining. - Delete unused initialization. - if dmar_acpi_insert_dev_scope() always returns zero,will not call dmar_rmrr_add_acpi_dev(). - Use a proper error code. - Use if(!pdev). - Use goto unlock instead of mutex_unlock(). FelixCuioc (2): iommu/vt-d:Add support for detecting ACPI device in RMRR iommu/vt-d:Add support for probing ACPI device in RMRR drivers/iommu/intel/dmar.c | 76 +++++++++++++++++++++---------------- drivers/iommu/intel/iommu.c | 52 ++++++++++++++++++++++++- drivers/iommu/iommu.c | 6 +++ include/linux/dmar.h | 12 +++++- include/linux/iommu.h | 3 ++ 5 files changed, 114 insertions(+), 35 deletions(-) -- 2.17.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu