50 static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
52 static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc,
189 int get_disk_guid(struct blk_desc * dev_desc, char *guid)  in get_disk_guid()  argument
191 	ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz);  in get_disk_guid()
196 	if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,  in get_disk_guid()
199 		if (is_gpt_valid(dev_desc, dev_desc->lba - 1,  in get_disk_guid()
216 void part_print_efi(struct blk_desc *dev_desc)  in part_print_efi()  argument
218 	ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz);  in part_print_efi()
225 	if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,  in part_print_efi()
228 		if (is_gpt_valid(dev_desc, (dev_desc->lba - 1),  in part_print_efi()
273 int part_get_info_efi(struct blk_desc *dev_desc, int part,  in part_get_info_efi()  argument
276 	ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz);  in part_get_info_efi()
286 	if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,  in part_get_info_efi()
289 		if (is_gpt_valid(dev_desc, (dev_desc->lba - 1),  in part_get_info_efi()
313 	info->blksz = dev_desc->blksz;  in part_get_info_efi()
336 static int part_test_efi(struct blk_desc *dev_desc)  in part_test_efi()  argument
338 	ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, legacymbr, 1, dev_desc->blksz);  in part_test_efi()
341 	if ((blk_dread(dev_desc, 0, 1, (ulong *)legacymbr) != 1)  in part_test_efi()
354 static int set_protective_mbr(struct blk_desc *dev_desc)  in set_protective_mbr()  argument
357 	ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, p_mbr, 1, dev_desc->blksz);  in set_protective_mbr()
364 	if (blk_dread(dev_desc, 0, 1, p_mbr) != 1) {  in set_protective_mbr()
365 		pr_err("** Can't read from device %d **\n", dev_desc->devnum);  in set_protective_mbr()
377 	p_mbr->partition_record[0].nr_sects = (u32) dev_desc->lba - 1;  in set_protective_mbr()
380 	if (blk_dwrite(dev_desc, 0, 1, p_mbr) != 1) {  in set_protective_mbr()
382 			dev_desc->devnum);  in set_protective_mbr()
389 int write_gpt_table(struct blk_desc *dev_desc,  in write_gpt_table()  argument
393 					   * sizeof(gpt_entry)), dev_desc);  in write_gpt_table()
396 	debug("max lba: %x\n", (u32) dev_desc->lba);  in write_gpt_table()
398 	if (set_protective_mbr(dev_desc) < 0)  in write_gpt_table()
412 	if (blk_dwrite(dev_desc, 1, 1, gpt_h) != 1)  in write_gpt_table()
415 	if (blk_dwrite(dev_desc, le64_to_cpu(gpt_h->partition_entry_lba),  in write_gpt_table()
421 	if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->last_usable_lba)  in write_gpt_table()
425 	if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->my_lba), 1,  in write_gpt_table()
433 	printf("** Can't write to device %d **\n", dev_desc->devnum);  in write_gpt_table()
437 int gpt_fill_pte(struct blk_desc *dev_desc,  in gpt_fill_pte()  argument
460 		dev_desc->blksz;  in gpt_fill_pte()
557 static uint32_t partition_entries_offset(struct blk_desc *dev_desc)  in partition_entries_offset()  argument
573 		PAD_TO_BLOCKSIZE(CONFIG_EFI_PARTITION_ENTRIES_OFF, dev_desc);  in partition_entries_offset()
574 	offset_blks = offset_bytes / dev_desc->blksz;  in partition_entries_offset()
587 		offset_bytes = PAD_TO_BLOCKSIZE(config_offset, dev_desc);  in partition_entries_offset()
588 		offset_blks = offset_bytes / dev_desc->blksz;  in partition_entries_offset()
604 int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h,  in gpt_fill_header()  argument
611 	gpt_h->alternate_lba = cpu_to_le64(dev_desc->lba - 1);  in gpt_fill_header()
612 	gpt_h->last_usable_lba = cpu_to_le64(dev_desc->lba - 34);  in gpt_fill_header()
614 		cpu_to_le64(partition_entries_offset(dev_desc));  in gpt_fill_header()
628 int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid,  in gpt_restore()  argument
635 	size = PAD_TO_BLOCKSIZE(sizeof(gpt_header), dev_desc);  in gpt_restore()
644 				dev_desc);  in gpt_restore()
654 	ret = gpt_fill_header(dev_desc, gpt_h, str_disk_guid, parts_count);  in gpt_restore()
659 	ret = gpt_fill_pte(dev_desc, gpt_h, gpt_e, partitions, parts_count);  in gpt_restore()
664 	ret = write_gpt_table(dev_desc, gpt_h, gpt_e);  in gpt_restore()
686 int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head,  in gpt_verify_headers()  argument
693 	if (is_gpt_valid(dev_desc,  in gpt_verify_headers()
700 	if (is_gpt_valid(dev_desc, (dev_desc->lba - 1),  in gpt_verify_headers()
710 int gpt_verify_partitions(struct blk_desc *dev_desc,  in gpt_verify_partitions()  argument
719 	ret = gpt_verify_headers(dev_desc, gpt_head, gpt_pte);  in gpt_verify_partitions()
788 int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf)  in is_valid_gpt_buf()  argument
795 		       dev_desc->blksz);  in is_valid_gpt_buf()
797 				dev_desc->lba))  in is_valid_gpt_buf()
802 		       dev_desc->blksz);  in is_valid_gpt_buf()
809 int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf)  in write_mbr_and_gpt_partitions()  argument
817 	if (is_valid_gpt_buf(dev_desc, buf))  in write_mbr_and_gpt_partitions()
822 		       dev_desc->blksz);  in write_mbr_and_gpt_partitions()
826 		       dev_desc->blksz);  in write_mbr_and_gpt_partitions()
829 				  dev_desc);  in write_mbr_and_gpt_partitions()
834 	if (blk_dwrite(dev_desc, lba, cnt, buf) != cnt) {  in write_mbr_and_gpt_partitions()
843 	if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) {  in write_mbr_and_gpt_partitions()
851 	if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) {  in write_mbr_and_gpt_partitions()
862 	if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) {  in write_mbr_and_gpt_partitions()
870 	if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) {  in write_mbr_and_gpt_partitions()
931 static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,  in is_gpt_valid()  argument
935 	if (!dev_desc || !pgpt_head) {  in is_gpt_valid()
940 	ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, mbr, 1, dev_desc->blksz);  in is_gpt_valid()
943 	if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) {  in is_gpt_valid()
949 	if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) {  in is_gpt_valid()
954 	if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba))  in is_gpt_valid()
957 	if (dev_desc->sig_type == SIG_TYPE_NONE) {  in is_gpt_valid()
960 			dev_desc->sig_type = SIG_TYPE_GUID;  in is_gpt_valid()
961 			memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid,  in is_gpt_valid()
964 			dev_desc->sig_type = SIG_TYPE_MBR;  in is_gpt_valid()
965 			dev_desc->mbr_sig = mbr->unique_mbr_signature;  in is_gpt_valid()
970 	*pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);  in is_gpt_valid()
994 static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc,  in alloc_read_gpt_entries()  argument
1001 	if (!dev_desc || !pgpt_head) {  in alloc_read_gpt_entries()
1017 			       PAD_TO_BLOCKSIZE(count, dev_desc));  in alloc_read_gpt_entries()
1028 	blk_cnt = BLOCK_CNT(count, dev_desc);  in alloc_read_gpt_entries()
1029 	if (blk_dread(dev_desc, blk, (lbaint_t)blk_cnt, pte) != blk_cnt) {  in alloc_read_gpt_entries()