iommu/vt-d: Fix sid not set issue in intel_svm_bind_gpasid() (eea4e29a) · Commits · 戴 / test

Should get correct sid and set it into sdev. Because we execute 'sdev->sid != req->rid' in the loop of prq_event_thread(). Fixes: ("iommu/vt-d: Report page request faults for guest SVA") Signed-off-by:

Liu Yi L <yi.l.liu@intel.com> Signed-off-by:

Yi Sun <yi.y.sun@linux.intel.com> Acked-by:

Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/1604025444-6954-2-git-send-email-yi.y.sun@linux.intel.com Signed-off-by:

Joerg Roedel <jroedel@suse.de>

drivers/iommu/intel/svm.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -279,6 +279,7 @@ int intel_svm_bind_gpasid(struct iommu_domain domain, struct device dev,
		struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL);
		struct intel_svm_dev *sdev = NULL;
		struct dmar_domain *dmar_domain;
		struct device_domain_info *info;
		struct intel_svm *svm = NULL;
		int ret = 0;

		@@ -310,6 +311,10 @@ int intel_svm_bind_gpasid(struct iommu_domain domain, struct device dev,
		if (data->hpasid <= 0 \|\| data->hpasid >= PASID_MAX)
		return -EINVAL;

		info = get_domain_info(dev);
		if (!info)
		return -EINVAL;

		dmar_domain = to_dmar_domain(domain);

		mutex_lock(&pasid_mutex);
		@@ -357,6 +362,7 @@ int intel_svm_bind_gpasid(struct iommu_domain domain, struct device dev,
		goto out;
		}
		sdev->dev = dev;
		sdev->sid = PCI_DEVID(info->bus, info->devfn);

		/* Only count users if device has aux domains */
		if (iommu_dev_feature_enabled(dev, IOMMU_DEV_FEAT_AUX))

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