subtract_range
subtract_range(mem, ARRAY_SIZE(mem), __pa(KERNEL_START), __pa(KERNEL_END));
subtract_range(io, ARRAY_SIZE(io), __pa(KERNEL_START), __pa(KERNEL_END));
subtract_range(mem, ARRAY_SIZE(mem), CONFIG_XIP_PHYS_ADDR, __pa(_exiprom));
subtract_range(io, ARRAY_SIZE(io), CONFIG_XIP_PHYS_ADDR, __pa(_exiprom));
subtract_range(mem, ARRAY_SIZE(mem), vectors_base, vectors_base + 2 * PAGE_SIZE);
subtract_range(io, ARRAY_SIZE(io), vectors_base, vectors_base + 2 * PAGE_SIZE);
subtract_range(io, ARRAY_SIZE(io), mem[i].start, mem[i].end);
subtract_range(range, RANGE_NUM, base, base + size);
subtract_range(range, RANGE_NUM, extra_remove_base,
subtract_range(range, RANGE_NUM, start, end + 1);
subtract_range(range, RANGE_NUM, 0, end);
subtract_range(range, RANGE_NUM, fam10h_mmconf_start,
subtract_range(range, RANGE_NUM, start,
subtract_range(range, RANGE_NUM, start, end + 1);
subtract_range(range, RANGE_NUM, 1ULL<<32, end);
void subtract_range(struct range *range, int az, u64 start, u64 end);