#define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT)
#define DMA_32BIT_PFN IOVA_PFN(DMA_32BIT_MASK)
-#define DMA_64BIT_PFN IOVA_PFN(DMA_64BIT_MASK)
+#define DMA_64BIT_PFN IOVA_PFN(DMA_BIT_MASK(64))
/* global iommu list, set NULL for ignored DMAR units */
static struct intel_iommu **g_iommus;