iommu/amd: Make sure IOMMU is not considered to translate itself
The IVRS table usually includes the IOMMU device. But the
IOMMU does never translate itself, so make sure the IOMMU
driver knows this.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 8a7f197..68b3305 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1021,6 +1021,13 @@
ret = init_iommu_from_acpi(iommu, h);
if (ret)
return ret;
+
+ /*
+ * Make sure IOMMU is not considered to translate itself. The IVRS
+ * table tells us so, but this is a lie!
+ */
+ amd_iommu_rlookup_table[iommu->devid] = NULL;
+
init_iommu_devices(iommu);
return 0;