diff options
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index f7ba6552ccad..52a04a6db397 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -2800,6 +2800,10 @@ static int amd_iommu_def_domain_type(struct device *dev) if (!dev_data) return 0; + /* Always use DMA domain for untrusted device */ + if (dev_is_pci(dev) && to_pci_dev(dev)->untrusted) + return IOMMU_DOMAIN_DMA; + /* * Do not identity map IOMMUv2 capable devices when: * - memory encryption is active, because some of those devices |