[PATCH v1 1/3] iommu/vt-d: Fix prq reporting issues

Yi Sun
2020-10-28T01:57:53Z

From: Liu Yi L <yi.l.liu@intel.com>

Should get correct sid and set it into sdev. Because we execute
'sdev->sid != req->rid' in the loop of prq_event_thread().

Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
---
drivers/iommu/intel/svm.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index f1861fa..75d9dc9 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -277,6 +277,7 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev,
struct iommu_gpasid_bind_data *data)
{
struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL);
+ struct device_domain_info *info;
struct intel_svm_dev *sdev = NULL;
struct dmar_domain *dmar_domain;
struct intel_svm *svm = NULL;
@@ -357,6 +358,8 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev,
goto out;
}
sdev->dev = dev;
+ info = get_domain_info(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))
--
2.7.4