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.roe...@amd.com>
---
drivers/iommu/amd_iommu_init.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 8e9d71c..202b2b7 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1018,6 +1018,13 @@ static int __init init_iommu_one(struct amd_iommu
*iommu, struct ivhd_header *h)
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;
--
1.7.9.5
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