*(level3p++) = __pa(level2p) | L2_ATTR; addr += LEVEL2_SIZE;
set_pud(level3p++, __pud(__pa(level2p) | _KERNPG_TABLE)); addr += PUD_SIZE;
static int init_level3_page(struct kimage *image, u64 *level3p,				unsigned long addr, unsigned long last_addr){	unsigned long end_addr;	int result;	result = 0;	addr &= PAGE_MASK;	end_addr = addr + LEVEL3_SIZE;	while ((addr < last_addr) && (addr < end_addr)) {		struct page *page;		u64 *level2p;		page = kimage_alloc_control_pages(image, 0);		if (!page) {			result = -ENOMEM;			goto out;		}		level2p = (u64 *)page_address(page);		init_level2_page(level2p, addr);		*(level3p++) = __pa(level2p) | L2_ATTR;		addr += LEVEL2_SIZE;	}	/* clear the unused entries */	while (addr < end_addr) {		*(level3p++) = 0;		addr += LEVEL2_SIZE;	}out:	return result;}