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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 DD249C6778A for ; Mon, 9 Jul 2018 05:33:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 950CB208DB for ; Mon, 9 Jul 2018 05:33:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 950CB208DB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754522AbeGIFdE (ORCPT ); Mon, 9 Jul 2018 01:33:04 -0400 Received: from mga01.intel.com ([192.55.52.88]:52078 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753948AbeGIFdD (ORCPT ); Mon, 9 Jul 2018 01:33:03 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jul 2018 22:33:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,329,1526367600"; d="scan'208";a="243653241" Received: from allen-box.sh.intel.com ([10.239.48.172]) by fmsmga005.fm.intel.com with ESMTP; 08 Jul 2018 22:33:00 -0700 From: Lu Baolu To: Joerg Roedel , David Woodhouse Cc: ashok.raj@intel.com, sanjay.k.kumar@intel.com, jacob.jun.pan@intel.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH v4 0/9] iommu/vt-d: Improve PASID id and table management Date: Mon, 9 Jul 2018 13:22:49 +0800 Message-Id: <1531113778-28238-1-git-send-email-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This patch set improves the PASID id and PASID table management for Intel IOMMU driver. PATCH 1~3 replace per IOMMU idr name space with a global one. Current per IOMMU idr doesn't work in some cases where one application (associated with a PASID) might talk to two physical devices simultaneously while the two devices could reside behind two different IOMMU units. PATCH 4~9 implement per device PASID table. Current per IOMMU PASID table implementation is insecure in the cases where multiple devices under one single IOMMU unit support PASID feature. With per domain PASID table, we can achieve finer protection and isolation granularity. This has been discussed at https://lkml.org/lkml/2018/5/16/154. Best regards, Lu Baolu Change log: v1->v2: - Patches have been reviewed by "Liu Yi L ". - An error case handling was added in PATCH 6/9. - Some commit messages are refined to be more accurate. v2->v3: - Patches rebased on top of v4.18-rc1. - Replace per-domain with per-device pasid table. v3->v4: - Patches rebased on top of Joerg's x86/vt-d branch. Lu Baolu (9): iommu/vt-d: Global PASID name space iommu/vt-d: Avoid using idr_for_each_entry() iommu/vt-d: Apply global PASID in SVA iommu/vt-d: Move device_domain_info to header iommu/vt-d: Add for_each_device_domain() helper iommu/vt-d: Per PCI device pasid table interfaces iommu/vt-d: Allocate and free pasid table iommu/vt-d: Apply per pci device pasid table in SVA iommu/vt-d: Remove the obsolete per iommu pasid tables drivers/iommu/Makefile | 2 +- drivers/iommu/intel-iommu.c | 143 ++++++++++++-------------- drivers/iommu/intel-pasid.c | 238 ++++++++++++++++++++++++++++++++++++++++++++ drivers/iommu/intel-pasid.h | 39 ++++++++ drivers/iommu/intel-svm.c | 79 ++++++--------- include/linux/intel-iommu.h | 72 +++++++++++++- 6 files changed, 440 insertions(+), 133 deletions(-) create mode 100644 drivers/iommu/intel-pasid.c create mode 100644 drivers/iommu/intel-pasid.h -- 2.7.4