1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index bddb4b19b6c7..32e55c7a9805 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -220,6 +220,16 @@ int flush_irte(int irq)
         return 0;
 }
 
+struct intel_iommu *map_ioapic_to_ir(int apic)
+{
+        int i;
+
+        for (i = 0; i < MAX_IO_APICS; i++)
+                if (ir_ioapic[i].id == apic)
+                        return ir_ioapic[i].iommu;
+        return NULL;
+}
+
 int free_irte(int irq)
 {
         int index, i;