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-rw-r--r--drivers/iommu/intel-iommu.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 687f18f65cea..2800a6ee8cc9 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -901,6 +901,13 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf
struct pci_dev *pf_pdev;
pdev = to_pci_dev(dev);
+
+#ifdef CONFIG_X86
+ /* VMD child devices currently cannot be handled individually */
+ if (is_vmd(pdev->bus))
+ return NULL;
+#endif
+
/* VFs aren't listed in scope tables; we need to look up
* the PF instead to find the IOMMU. */
pf_pdev = pci_physfn(pdev);