iommu: Add IOMMU index argument to translate method

Add an IOMMU index argument to the translate method of
IOMMUs. Since all of our current IOMMU implementations
support only a single IOMMU index, this has no effect
on the behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-4-peter.maydell@linaro.org
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index 301708e..1b0880a 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
@@ -112,7 +112,8 @@
 /* Called from RCU critical section */
 static IOMMUTLBEntry spapr_tce_translate_iommu(IOMMUMemoryRegion *iommu,
                                                hwaddr addr,
-                                               IOMMUAccessFlags flag)
+                                               IOMMUAccessFlags flag,
+                                               int iommu_idx)
 {
     sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
     uint64_t tce;