dummy_physical_memory_base
memblock_add(dummy_physical_memory_base(), MEM_SIZE);
phys_addr_t memory_base = dummy_physical_memory_base();
memblock_add(dummy_physical_memory_base(), MEM_SIZE);
base = PAGE_ALIGN(dummy_physical_memory_base());
memblock_add(dummy_physical_memory_base(), MEM_SIZE);
phys_addr_t dummy_physical_memory_base(void);