diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 20 | ||||
| -rw-r--r-- | drivers/iommu/intel-pasid.h | 1 |
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index f2976a3f1d67..620342bffc0b 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2462,6 +2462,22 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, dmar_remove_one_dev_info(domain, dev); return NULL; } + + /* Setup the PASID entry for requests without PASID: */ + spin_lock(&iommu->lock); + if (hw_pass_through && domain_type_is_si(domain)) + ret = intel_pasid_setup_pass_through(iommu, domain, + dev, PASID_RID2PASID); + else + ret = intel_pasid_setup_second_level(iommu, domain, + dev, PASID_RID2PASID); + spin_unlock(&iommu->lock); + if (ret) { + pr_err("Setup RID2PASID for %s failed\n", + dev_name(dev)); + dmar_remove_one_dev_info(domain, dev); + return NULL; + } } if (dev && domain_context_mapping(domain, dev)) { @@ -4825,6 +4841,10 @@ static void __dmar_remove_one_dev_info(struct device_domain_info *info) iommu = info->iommu; if (info->dev) { + if (dev_is_pci(info->dev) && sm_supported(iommu)) + intel_pasid_tear_down_entry(iommu, info->dev, + PASID_RID2PASID); + iommu_disable_dev_iotlb(info); domain_context_clear(iommu, info->dev); intel_pasid_free_table(info->dev); diff --git a/drivers/iommu/intel-pasid.h b/drivers/iommu/intel-pasid.h index 3c70522091d3..d6f4fead4491 100644 --- a/drivers/iommu/intel-pasid.h +++ b/drivers/iommu/intel-pasid.h @@ -10,6 +10,7 @@ #ifndef __INTEL_PASID_H #define __INTEL_PASID_H +#define PASID_RID2PASID 0x0 #define PASID_MIN 0x1 #define PASID_MAX 0x100000 #define PASID_PTE_MASK 0x3F |