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-rw-r--r--drivers/pci/intr_remapping.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index ef25caade54..472be1c3fff 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -524,6 +524,13 @@ int __init enable_intr_remapping(int eim)
struct intel_iommu *iommu = drhd->iommu;
/*
+ * If the queued invalidation is already initialized,
+ * shouldn't disable it.
+ */
+ if (iommu->qi)
+ continue;
+
+ /*
* Clear previous faults.
*/
dmar_fault(-1, iommu);