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=-3.8 required=3.0 tests=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 33335C10F29 for ; Tue, 17 Mar 2020 07:05:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F3B5020719 for ; Tue, 17 Mar 2020 07:05:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725906AbgCQHFN (ORCPT ); Tue, 17 Mar 2020 03:05:13 -0400 Received: from mga12.intel.com ([192.55.52.136]:56620 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725536AbgCQHFN (ORCPT ); Tue, 17 Mar 2020 03:05:13 -0400 IronPort-SDR: 1p1AfAsjooOPLpi+Gf+1K9YNzGPcaUVy9lu2niqrf/TB94YxllO32y9i4/ER/mi6PaJG5P9Cny YEev4YLsBvQg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2020 00:05:13 -0700 IronPort-SDR: KhH0qzyCLlOIhb6zL/i+bFFfzSMHbL5pW7UQ5Cyeq1zAAFRVlKtusqJvUdomuIuad2W5jPRi87 mMiVXz9o5iwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,563,1574150400"; d="scan'208";a="267867281" Received: from allen-box.sh.intel.com ([10.239.159.139]) by fmsmga004.fm.intel.com with ESMTP; 17 Mar 2020 00:05:10 -0700 From: Lu Baolu To: Joerg Roedel Cc: ashok.raj@intel.com, jacob.jun.pan@linux.intel.com, Liu Yi L , kevin.tian@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH 0/5] iommu/vt-d: Add page request draining support Date: Tue, 17 Mar 2020 15:02:24 +0800 Message-Id: <20200317070229.21131-1-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When a PASID is stopped or terminated, there can be pending PRQs (requests that haven't received responses) in remapping hardware. VT-d driver must drain the pending page requests so that the pasid could be reused. The register level interface for page request draining is defined in 7.11 of the VT-d spec. This series adds the support for page requests draining. This functionality was mainly developed and tested by Jacob Pan Liu Yi L . Thanks a lot. Please help to review. Best regards, baolu Jacob Pan (1): iommu/vt-d: Add page request draining support Lu Baolu (4): iommu/vt-d: Add get_domain_info() helper iommu/vt-d: Refactor parameters for qi_submit_sync() iommu/vt-d: Multiple descriptors per qi_submit_sync() iommu/vt-d: Refactor prq_event_thread() drivers/iommu/dmar.c | 50 ++++--- drivers/iommu/intel-iommu.c | 38 +++-- drivers/iommu/intel-pasid.c | 16 +-- drivers/iommu/intel-svm.c | 207 ++++++++++++++++++++++++---- drivers/iommu/intel_irq_remapping.c | 2 +- include/linux/intel-iommu.h | 9 +- 6 files changed, 258 insertions(+), 64 deletions(-) -- 2.17.1