1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 68bce0a52b9b..3bcb459905c4 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -1003,7 +1003,10 @@ intel_ir_set_affinity(struct irq_data *data, const struct cpumask *mask,
          */
         irte->vector = cfg->vector;
         irte->dest_id = IRTE_DEST(cfg->dest_apicid);
-        modify_irte(&ir_data->irq_2_iommu, irte);
+
+        /* Update the hardware only if the interrupt is in remapped mode. */
+        if (ir_data->irq_2_iommu.mode == IRQ_REMAPPING)
+                modify_irte(&ir_data->irq_2_iommu, irte);
 
         /*
          * After this point, all the interrupts will start arriving