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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 6E8D0C433E2 for ; Thu, 10 Sep 2020 10:48:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40FCB2145D for ; Thu, 10 Sep 2020 10:48:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730500AbgIJKsH (ORCPT ); Thu, 10 Sep 2020 06:48:07 -0400 Received: from mga06.intel.com ([134.134.136.31]:21915 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726381AbgIJKpk (ORCPT ); Thu, 10 Sep 2020 06:45:40 -0400 IronPort-SDR: Gq3F30uYHGcSbnKb+6tvIpn6wNwyhkwB3+4TVSqMuQhiTS44u6FOFlT98t5CfCO5/9ddDKZhJH LMkfWur7kRpg== X-IronPort-AV: E=McAfee;i="6000,8403,9739"; a="220066290" X-IronPort-AV: E=Sophos;i="5.76,412,1592895600"; d="scan'208";a="220066290" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Sep 2020 03:43:35 -0700 IronPort-SDR: OyJ/bmLzzwNG7T9QSborYy4Obmxj/ucNdazTzdYsirpfq6EJ2gOkRHNhVWNqmonANeq2DqEnrs SUVgvURCM4Uw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,412,1592895600"; d="scan'208";a="334137203" Received: from jacob-builder.jf.intel.com ([10.7.199.155]) by orsmga008.jf.intel.com with ESMTP; 10 Sep 2020 03:43:34 -0700 From: Liu Yi L To: alex.williamson@redhat.com, eric.auger@redhat.com, baolu.lu@linux.intel.com, joro@8bytes.org Cc: kevin.tian@intel.com, jacob.jun.pan@linux.intel.com, ashok.raj@intel.com, yi.l.liu@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, jean-philippe@linaro.org, peterx@redhat.com, jasowang@redhat.com, hao.wu@intel.com, stefanha@gmail.com, iommu@lists.linux-foundation.org, kvm@vger.kernel.org Subject: [PATCH v7 08/16] iommu: Pass domain to sva_unbind_gpasid() Date: Thu, 10 Sep 2020 03:45:25 -0700 Message-Id: <1599734733-6431-9-git-send-email-yi.l.liu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1599734733-6431-1-git-send-email-yi.l.liu@intel.com> References: <1599734733-6431-1-git-send-email-yi.l.liu@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Yi Sun Current interface is good enough for SVA virtualization on an assigned physical PCI device, but when it comes to mediated devices, a physical device may be attached with multiple aux-domains. Also, for guest unbind, the PASID to be unbind should be allocated to the VM. This check requires to know the ioasid_set which is associated with the domain. So this interface needs to pass in domain info. Then the iommu driver is able to know which domain will be used for the 2nd stage translation of the nesting mode and also be able to do PASID ownership check. This patch passes @domain per the above reason. Also, the prototype of &pasid is changed from an "int" to "u32" as the below link. [PATCH v6 01/12] iommu: Change type of pasid to u32 https://lore.kernel.org/linux-iommu/1594684087-61184-2-git-send-email-fenghua.yu@intel.com/ Cc: Kevin Tian CC: Jacob Pan Cc: Alex Williamson Cc: Eric Auger Cc: Jean-Philippe Brucker Cc: Joerg Roedel Cc: Lu Baolu Signed-off-by: Yi Sun Signed-off-by: Liu Yi L --- v6 -> v7: *) correct the link for the details of modifying pasid prototype to bve "u32". *) hold off r-b from Eric Auger as there is modification in this patch, will seek r-b in this version. v5 -> v6: *) use "u32" prototype for @pasid. *) add review-by from Eric Auger. v2 -> v3: *) pass in domain info only *) use u32 for pasid instead of int type v1 -> v2: *) added in v2. --- drivers/iommu/intel/svm.c | 3 ++- drivers/iommu/iommu.c | 2 +- include/linux/intel-iommu.h | 3 ++- include/linux/iommu.h | 3 ++- 4 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index d3cf52b..d39fafb 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -476,7 +476,8 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev, return ret; } -int intel_svm_unbind_gpasid(struct device *dev, int pasid) +int intel_svm_unbind_gpasid(struct iommu_domain *domain, + struct device *dev, u32 pasid) { struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL); struct intel_svm_dev *sdev; diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 3bc263a..52aabb64 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2155,7 +2155,7 @@ int iommu_sva_unbind_gpasid(struct iommu_domain *domain, struct device *dev, if (unlikely(!domain->ops->sva_unbind_gpasid)) return -ENODEV; - return domain->ops->sva_unbind_gpasid(dev, data->hpasid); + return domain->ops->sva_unbind_gpasid(domain, dev, data->hpasid); } EXPORT_SYMBOL_GPL(iommu_sva_unbind_gpasid); diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 3345391..ce0b33b 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -741,7 +741,8 @@ extern int intel_svm_enable_prq(struct intel_iommu *iommu); extern int intel_svm_finish_prq(struct intel_iommu *iommu); int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev, struct iommu_gpasid_bind_data *data); -int intel_svm_unbind_gpasid(struct device *dev, int pasid); +int intel_svm_unbind_gpasid(struct iommu_domain *domain, + struct device *dev, u32 pasid); struct iommu_sva *intel_svm_bind(struct device *dev, struct mm_struct *mm, void *drvdata); void intel_svm_unbind(struct iommu_sva *handle); diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 5b9f630..d561448 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -297,7 +297,8 @@ struct iommu_ops { int (*sva_bind_gpasid)(struct iommu_domain *domain, struct device *dev, struct iommu_gpasid_bind_data *data); - int (*sva_unbind_gpasid)(struct device *dev, int pasid); + int (*sva_unbind_gpasid)(struct iommu_domain *domain, + struct device *dev, u32 pasid); int (*def_domain_type)(struct device *dev); -- 2.7.4