Symbol: AMD_IOMMU_SIZE_4G
usr/src/uts/i86pc/io/amd_iommu/amd_iommu_page_tables.c
1532
AMD_IOMMU_SIZE_4G), /* XXX rollover */
usr/src/uts/i86pc/io/amd_iommu/amd_iommu_page_tables.c
172
size = AMD_IOMMU_SIZE_4G - MMU_PAGESIZE;