x86/lib/zimage.c

92 static int kernel_magic_ok(struct setup_header *hdr)
94 	if (KERNEL_MAGIC != hdr->boot_flag) {
97 			hdr->boot_flag, KERNEL_MAGIC);
105 static int get_boot_protocol(struct setup_header *hdr, bool verbose)
107 	if (hdr->header == KERNEL_V2_MAGIC) {
110 		return hdr->version;
119 static int setup_device_tree(struct setup_header *hdr, const void *fdt_blob)
121 	int bootproto = get_boot_protocol(hdr, false);
142 	sd->next = hdr->setup_data;
146 	hdr->setup_data = (unsigned long)sd;
154 	struct setup_header *hdr = &params->hdr;
158 	bootproto = get_boot_protocol(hdr, false);
159 	log_debug("bootproto %x, hdr->setup_sects %x\n", bootproto,
160 		  hdr->setup_sects);
161 	if (bootproto < 0x0200 || hdr->setup_sects < 15)
165 	log_debug("hdr->kernel_version %x, str at %p\n", hdr->kernel_version,
166 		  kernel_base + hdr->kernel_version + 0x200);
167 	for (s = kernel_base + hdr->kernel_version + 0x200, end = s + 0x100; *s;
173 	return kernel_base + hdr->kernel_version + 0x200;
186 	struct setup_header *hdr = &params->hdr;
191 	if (!kernel_magic_ok(hdr))
195 	if (0 == hdr->setup_sects) {
199 		setup_size = (hdr->setup_sects + 1) * 512;
208 	bootproto = get_boot_protocol(hdr, true);
221 		    (hdr->loadflags & BIG_KERNEL_FLAG);
231 	setup_base->hdr = params->hdr;
234 		kernel_size = hdr->syssize * 16;
285 	struct setup_header *hdr = &setup_base->hdr;
286 	int bootproto = get_boot_protocol(hdr, false);
302 		hdr->type_of_loader = 0x80;	/* U-Boot version 0 */
308 			hdr->ramdisk_image = initrd_addr;
309 			hdr->ramdisk_size = initrd_size;
314 		hdr->heap_end_ptr = HEAP_END_OFFSET;
315 		hdr->loadflags |= HEAP_FLAG;
324 			max_size = hdr->cmdline_size;
326 			hdr->cmd_line_ptr = (uintptr_t)cmd_line;
332 			hdr->setup_move_size = 0x9100;
355 		hdr->hardware_subarch = X86_SUBARCH_INTEL_MID;
361 	setup_device_tree(hdr, (const void *)env_get_hex("fdtaddr", 0));
382 		base_ptr->hdr = from->hdr;
419 	struct setup_header *hdr = &params->hdr;
429 	    (hdr->xloadflags & XLF_KERNEL_64)) {
533 static void show_loader(struct setup_header *hdr)
539 	type = hdr->type_of_loader >> 4;
540 	version = hdr->type_of_loader & 0xf;
542 		type = 0x10 + hdr->ext_loader_type;
543 	version |= hdr->ext_loader_ver << 4;
544 	if (!hdr->type_of_loader) {
546 	} else if (hdr->type_of_loader == 0xff) {
562 	struct setup_header *hdr;
582 	hdr = &base_ptr->hdr;
583 	print_num("Setup sectors", hdr->setup_sects);
584 	print_num("Root flags", hdr->root_flags);
585 	print_num("Sys size", hdr->syssize);
586 	print_num("RAM size", hdr->ram_size);
587 	print_num("Video mode", hdr->vid_mode);
588 	print_num("Root dev", hdr->root_dev);
589 	print_num("Boot flag", hdr->boot_flag);
590 	print_num("Jump", hdr->jump);
591 	print_num("Header", hdr->header);
592 	if (hdr->header == KERNEL_V2_MAGIC)
596 	print_num("Version", hdr->version);
597 	print_num("Real mode switch", hdr->realmode_swtch);
598 	print_num("Start sys seg", hdr->start_sys_seg);
599 	print_num("Kernel version", hdr->kernel_version);
604 	print_num("Type of loader", hdr->type_of_loader);
605 	show_loader(hdr);
606 	print_num("Load flags", hdr->loadflags);
607 	print_flags(load_flags, ARRAY_SIZE(load_flags), hdr->loadflags);
608 	print_num("Setup move size", hdr->setup_move_size);
609 	print_num("Code32 start", hdr->code32_start);
610 	print_num("Ramdisk image", hdr->ramdisk_image);
611 	print_num("Ramdisk size", hdr->ramdisk_size);
612 	print_num("Bootsect kludge", hdr->bootsect_kludge);
613 	print_num("Heap end ptr", hdr->heap_end_ptr);
614 	print_num("Ext loader ver", hdr->ext_loader_ver);
615 	print_num("Ext loader type", hdr->ext_loader_type);
616 	print_num("Command line ptr", hdr->cmd_line_ptr);
617 	if (show_cmdline && hdr->cmd_line_ptr) {
620 		puts((char *)(ulong)hdr->cmd_line_ptr);
623 	print_num("Initrd addr max", hdr->initrd_addr_max);
624 	print_num("Kernel alignment", hdr->kernel_alignment);
625 	print_num("Relocatable kernel", hdr->relocatable_kernel);
626 	print_num("Min alignment", hdr->min_alignment);
627 	if (hdr->min_alignment)
628 		printf("%-20s: %x\n", "", 1 << hdr->min_alignment);
629 	print_num("Xload flags", hdr->xloadflags);
630 	print_flags(xload_flags, ARRAY_SIZE(xload_flags), hdr->xloadflags);
631 	print_num("Cmdline size", hdr->cmdline_size);
632 	print_num("Hardware subarch", hdr->hardware_subarch);
633 	print_num64("HW subarch data", hdr->hardware_subarch_data);
634 	print_num("Payload offset", hdr->payload_offset);
635 	print_num("Payload length", hdr->payload_length);
636 	print_num64("Setup data", hdr->setup_data);
637 	print_num64("Pref address", hdr->pref_address);
638 	print_num("Init size", hdr->init_size);
639 	print_num("Handover offset", hdr->handover_offset);
640 	if (get_boot_protocol(hdr, false) >= 0x215)
641 		print_num("Kernel info offset", hdr->kernel_info_offset);