DVMA_START
#define DVMA_SIZE (DVMA_END-DVMA_START)
#define DVMA_SIZE (DVMA_END-DVMA_START)
hole->start = DVMA_START;
#define dvma_index(baddr) ((baddr - DVMA_START) >> DVMA_PAGE_SHIFT)
dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
(i << DVMA_PAGE_SHIFT) + DVMA_START, iommu_use[i]);