MAP_HUGE_2MB
#ifndef MAP_HUGE_2MB
| MAP_HUGE_2MB \
MAP_HUGETLB | MAP_HUGE_2MB, -1, 0);
mmap_flags |= MAP_HUGETLB | MAP_HUGE_2MB;
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, MAP_HUGE_2MB);
MAP_HUGETLB | MAP_HUGE_2MB,
.flag = ANON_HUGE_FLAGS | MAP_HUGE_2MB,
FIXTURE_VARIANT_ADD_ALL_IOMMU_MODES(anonymous_hugetlb_2mb, SZ_2M, MAP_HUGETLB | MAP_HUGE_2MB);