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disk/part_efi.c
32.3 KB
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// SPDX-License-Identifier: GPL-2.0+ |
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/* * Copyright (C) 2008 RuggedCom, Inc. * Richard Retanubun <RichardRetanubun@RuggedCom.com> |
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*/ /* |
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* NOTE: * when CONFIG_SYS_64BIT_LBA is not defined, lbaint_t is 32 bits; this * limits the maximum size of addressable storage to < 2 Terra Bytes |
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*/ |
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#include <asm/unaligned.h> |
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#include <common.h> #include <command.h> |
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#include <fdtdec.h> |
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#include <ide.h> #include <malloc.h> |
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#include <memalign.h> |
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#include <part_efi.h> |
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#include <linux/compiler.h> |
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#include <linux/ctype.h> |
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#include <u-boot/crc.h> |
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|
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DECLARE_GLOBAL_DATA_PTR; |
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/* * GUID for basic data partions. */ static const efi_guid_t partition_basic_data_guid = PARTITION_BASIC_DATA_GUID; |
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#ifdef CONFIG_HAVE_BLOCK_DEVICE |
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/** * efi_crc32() - EFI version of crc32 function * @buf: buffer to calculate crc32 of * @len - length of buf * * Description: Returns EFI-style CRC32 value for @buf */ |
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static inline u32 efi_crc32(const void *buf, u32 len) |
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{ return crc32(0, buf, len); } /* * Private function prototypes */ static int pmbr_part_valid(struct partition *part); static int is_pmbr_valid(legacy_mbr * mbr); |
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static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba, |
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gpt_header *pgpt_head, gpt_entry **pgpt_pte); |
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static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc, gpt_header *pgpt_head); |
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static int is_pte_valid(gpt_entry * pte); |
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static int find_valid_gpt(struct blk_desc *dev_desc, gpt_header *gpt_head, gpt_entry **pgpt_pte); |
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|
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static char *print_efiname(gpt_entry *pte) { static char name[PARTNAME_SZ + 1]; int i; for (i = 0; i < PARTNAME_SZ; i++) { u8 c; c = pte->partition_name[i] & 0xff; c = (c && !isprint(c)) ? '.' : c; name[i] = c; } name[PARTNAME_SZ] = 0; return name; } |
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static const efi_guid_t system_guid = PARTITION_SYSTEM_GUID; |
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static inline int is_bootable(gpt_entry *p) { return p->attributes.fields.legacy_bios_bootable || !memcmp(&(p->partition_type_guid), &system_guid, sizeof(efi_guid_t)); } |
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static int validate_gpt_header(gpt_header *gpt_h, lbaint_t lba, lbaint_t lastlba) { uint32_t crc32_backup = 0; uint32_t calc_crc32; /* Check the GPT header signature */ |
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if (le64_to_cpu(gpt_h->signature) != GPT_HEADER_SIGNATURE_UBOOT) { |
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printf("%s signature is wrong: 0x%llX != 0x%llX ", "GUID Partition Table Header", le64_to_cpu(gpt_h->signature), |
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GPT_HEADER_SIGNATURE_UBOOT); |
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return -1; } /* Check the GUID Partition Table CRC */ memcpy(&crc32_backup, &gpt_h->header_crc32, sizeof(crc32_backup)); memset(&gpt_h->header_crc32, 0, sizeof(gpt_h->header_crc32)); calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); memcpy(&gpt_h->header_crc32, &crc32_backup, sizeof(crc32_backup)); if (calc_crc32 != le32_to_cpu(crc32_backup)) { printf("%s CRC is wrong: 0x%x != 0x%x ", "GUID Partition Table Header", le32_to_cpu(crc32_backup), calc_crc32); return -1; } /* * Check that the my_lba entry points to the LBA that contains the GPT */ if (le64_to_cpu(gpt_h->my_lba) != lba) { printf("GPT: my_lba incorrect: %llX != " LBAF " ", le64_to_cpu(gpt_h->my_lba), lba); return -1; } /* * Check that the first_usable_lba and that the last_usable_lba are * within the disk. */ if (le64_to_cpu(gpt_h->first_usable_lba) > lastlba) { printf("GPT: first_usable_lba incorrect: %llX > " LBAF " ", le64_to_cpu(gpt_h->first_usable_lba), lastlba); return -1; } if (le64_to_cpu(gpt_h->last_usable_lba) > lastlba) { printf("GPT: last_usable_lba incorrect: %llX > " LBAF " ", le64_to_cpu(gpt_h->last_usable_lba), lastlba); return -1; } debug("GPT: first_usable_lba: %llX last_usable_lba: %llX last lba: " LBAF " ", le64_to_cpu(gpt_h->first_usable_lba), le64_to_cpu(gpt_h->last_usable_lba), lastlba); return 0; } |
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static void prepare_last_lba_gpt_header(struct blk_desc *dev_desc, gpt_header *gpt_h) { uint32_t calc_crc32; uint64_t val; /* recalculate the values for the Backup GPT Header */ val = le64_to_cpu(gpt_h->my_lba); gpt_h->my_lba = cpu_to_le64(dev_desc->lba - 1);; gpt_h->alternate_lba = cpu_to_le64(val); gpt_h->last_usable_lba = cpu_to_le64(dev_desc->lba - 34); gpt_h->partition_entry_lba = cpu_to_le64(le64_to_cpu(gpt_h->last_usable_lba) + 1); gpt_h->header_crc32 = 0; calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); } |
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static int validate_gpt_entries(gpt_header *gpt_h, gpt_entry *gpt_e) { uint32_t calc_crc32; /* Check the GUID Partition Table Entry Array CRC */ calc_crc32 = efi_crc32((const unsigned char *)gpt_e, le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)); if (calc_crc32 != le32_to_cpu(gpt_h->partition_entry_array_crc32)) { |
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debug("%s: 0x%x != 0x%x ", |
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"GUID Partition Table Entry Array CRC is wrong", le32_to_cpu(gpt_h->partition_entry_array_crc32), calc_crc32); return -1; } return 0; } static void prepare_backup_gpt_header(gpt_header *gpt_h) { uint32_t calc_crc32; uint64_t val; /* recalculate the values for the Backup GPT Header */ val = le64_to_cpu(gpt_h->my_lba); gpt_h->my_lba = gpt_h->alternate_lba; gpt_h->alternate_lba = cpu_to_le64(val); |
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gpt_h->partition_entry_lba = cpu_to_le64(le64_to_cpu(gpt_h->last_usable_lba) + 1); |
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gpt_h->header_crc32 = 0; calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); } |
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#if CONFIG_IS_ENABLED(EFI_PARTITION) |
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/* * Public Functions (include/part.h) */ |
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/* * UUID is displayed as 32 hexadecimal digits, in 5 groups, * separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters */ int get_disk_guid(struct blk_desc * dev_desc, char *guid) { ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); gpt_entry *gpt_pte = NULL; unsigned char *guid_bin; /* This function validates AND fills in the GPT header and PTE */ |
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if (find_valid_gpt(dev_desc, gpt_head, &gpt_pte) != 1) return -EINVAL; |
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guid_bin = gpt_head->disk_guid.b; uuid_bin_to_str(guid_bin, guid, UUID_STR_FORMAT_GUID); |
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/* Remember to free pte */ free(gpt_pte); |
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return 0; } |
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void part_print_efi(struct blk_desc *dev_desc) |
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{ |
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ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); |
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gpt_entry *gpt_pte = NULL; |
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int i = 0; |
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char uuid[UUID_STR_LEN + 1]; |
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unsigned char *uuid_bin; |
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|
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/* This function validates AND fills in the GPT header and PTE */ |
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if (find_valid_gpt(dev_desc, gpt_head, &gpt_pte) != 1) return; |
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|
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debug("%s: gpt-entry at %p ", __func__, gpt_pte); |
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|
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printf("Part\tStart LBA\tEnd LBA\t\tName "); |
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printf("\tAttributes "); |
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printf("\tType GUID "); printf("\tPartition GUID "); |
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|
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for (i = 0; i < le32_to_cpu(gpt_head->num_partition_entries); i++) { |
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/* Stop at the first non valid PTE */ if (!is_pte_valid(&gpt_pte[i])) break; |
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printf("%3d\t0x%08llx\t0x%08llx\t\"%s\" ", (i + 1), |
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le64_to_cpu(gpt_pte[i].starting_lba), le64_to_cpu(gpt_pte[i].ending_lba), |
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print_efiname(&gpt_pte[i])); |
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printf("\tattrs:\t0x%016llx ", gpt_pte[i].attributes.raw); |
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uuid_bin = (unsigned char *)gpt_pte[i].partition_type_guid.b; |
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uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID); |
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printf("\ttype:\t%s ", uuid); |
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#ifdef CONFIG_PARTITION_TYPE_GUID if (!uuid_guid_get_str(uuid_bin, uuid)) printf("\ttype:\t%s ", uuid); #endif |
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uuid_bin = (unsigned char *)gpt_pte[i].unique_partition_guid.b; |
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uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID); printf("\tguid:\t%s ", uuid); |
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} |
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#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
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/* Remember to free pte */ |
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free(gpt_pte); |
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#endif |
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return; } |
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int part_get_info_efi(struct blk_desc *dev_desc, int part, disk_partition_t *info) |
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{ |
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ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); |
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gpt_entry *gpt_pte = NULL; |
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/* "part" argument must be at least 1 */ |
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if (part < 1) { |
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printf("%s: Invalid Argument(s) ", __func__); |
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return -1; } /* This function validates AND fills in the GPT header and PTE */ |
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if (find_valid_gpt(dev_desc, gpt_head, &gpt_pte) != 1) return -1; |
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|
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if (part > le32_to_cpu(gpt_head->num_partition_entries) || |
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!is_pte_valid(&gpt_pte[part - 1])) { |
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debug("%s: *** ERROR: Invalid partition number %d *** ", |
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__func__, part); |
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#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
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free(gpt_pte); |
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#endif |
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return -1; } |
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/* The 'lbaint_t' casting may limit the maximum disk size to 2 TB */ info->start = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].starting_lba); |
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/* The ending LBA is inclusive, to calculate size, add 1 to it */ |
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info->size = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].ending_lba) + 1 |
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- info->start; |
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info->blksz = dev_desc->blksz; |
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|
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snprintf((char *)info->name, sizeof(info->name), "%s", print_efiname(&gpt_pte[part - 1])); |
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strcpy((char *)info->type, "U-Boot"); |
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info->bootable = is_bootable(&gpt_pte[part - 1]); |
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#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
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uuid_bin_to_str(gpt_pte[part - 1].unique_partition_guid.b, info->uuid, UUID_STR_FORMAT_GUID); |
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#endif |
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#ifdef CONFIG_PARTITION_TYPE_GUID uuid_bin_to_str(gpt_pte[part - 1].partition_type_guid.b, info->type_guid, UUID_STR_FORMAT_GUID); #endif |
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|
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debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s ", __func__, |
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info->start, info->size, info->name); |
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|
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#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) /* Heap memory is very limited in SPL, if the dual bootloader is * enabled, just load pte to dram instead of oc-ram. In such case, * this part of memory shouldn't be freed. But in common routine, * don't forget to free the memory after use. */ |
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free(gpt_pte); |
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#endif |
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return 0; } |
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static int part_test_efi(struct blk_desc *dev_desc) |
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{ |
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ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, legacymbr, 1, dev_desc->blksz); |
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/* Read legacy MBR from block 0 and validate it */ |
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if ((blk_dread(dev_desc, 0, 1, (ulong *)legacymbr) != 1) |
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|| (is_pmbr_valid(legacymbr) != 1)) { |
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return -1; } return 0; } |
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/** * set_protective_mbr(): Set the EFI protective MBR * @param dev_desc - block device descriptor * * @return - zero on success, otherwise error */ |
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static int set_protective_mbr(struct blk_desc *dev_desc) |
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{ |
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/* Setup the Protective MBR */ |
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ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, p_mbr, 1, dev_desc->blksz); |
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if (p_mbr == NULL) { printf("%s: calloc failed! ", __func__); return -1; } |
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/* Read MBR to backup boot code if it exists */ if (blk_dread(dev_desc, 0, 1, p_mbr) != 1) { |
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pr_err("** Can't read from device %d ** ", dev_desc->devnum); |
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return -1; } |
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/* Clear all data in MBR except of backed up boot code */ memset((char *)p_mbr + MSDOS_MBR_BOOT_CODE_SIZE, 0, sizeof(*p_mbr) - MSDOS_MBR_BOOT_CODE_SIZE); |
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/* Append signature */ p_mbr->signature = MSDOS_MBR_SIGNATURE; p_mbr->partition_record[0].sys_ind = EFI_PMBR_OSTYPE_EFI_GPT; p_mbr->partition_record[0].start_sect = 1; |
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p_mbr->partition_record[0].nr_sects = (u32) dev_desc->lba - 1; |
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/* Write MBR sector to the MMC device */ |
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if (blk_dwrite(dev_desc, 0, 1, p_mbr) != 1) { |
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printf("** Can't write to device %d ** ", |
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dev_desc->devnum); |
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return -1; } |
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return 0; } |
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int write_gpt_table(struct blk_desc *dev_desc, |
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gpt_header *gpt_h, gpt_entry *gpt_e) { |
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const int pte_blk_cnt = BLOCK_CNT((gpt_h->num_partition_entries * sizeof(gpt_entry)), dev_desc); |
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u32 calc_crc32; |
40684ddb8 gpt: Support for ... |
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 |
debug("max lba: %x ", (u32) dev_desc->lba); /* Setup the Protective MBR */ if (set_protective_mbr(dev_desc) < 0) goto err; /* Generate CRC for the Primary GPT Header */ calc_crc32 = efi_crc32((const unsigned char *)gpt_e, le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)); gpt_h->partition_entry_array_crc32 = cpu_to_le32(calc_crc32); calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); /* Write the First GPT to the block right after the Legacy MBR */ |
2a981dc2c dm: block: Adjust... |
416 |
if (blk_dwrite(dev_desc, 1, 1, gpt_h) != 1) |
40684ddb8 gpt: Support for ... |
417 |
goto err; |
02e43537b part_efi: support... |
418 419 |
if (blk_dwrite(dev_desc, le64_to_cpu(gpt_h->partition_entry_lba), pte_blk_cnt, gpt_e) != pte_blk_cnt) |
40684ddb8 gpt: Support for ... |
420 |
goto err; |
e1f6b0a02 disk: part_efi: m... |
421 |
prepare_backup_gpt_header(gpt_h); |
40684ddb8 gpt: Support for ... |
422 |
|
2a981dc2c dm: block: Adjust... |
423 424 |
if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->last_usable_lba) + 1, pte_blk_cnt, gpt_e) != pte_blk_cnt) |
40684ddb8 gpt: Support for ... |
425 |
goto err; |
2a981dc2c dm: block: Adjust... |
426 427 |
if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->my_lba), 1, gpt_h) != 1) |
40684ddb8 gpt: Support for ... |
428 429 430 431 432 433 434 |
goto err; debug("GPT successfully written to block device! "); return 0; err: |
bcce53d04 dm: block: Rename... |
435 436 |
printf("** Can't write to device %d ** ", dev_desc->devnum); |
40684ddb8 gpt: Support for ... |
437 438 |
return -1; } |
47d7ee47b part: efi: make g... |
439 440 441 |
int gpt_fill_pte(struct blk_desc *dev_desc, gpt_header *gpt_h, gpt_entry *gpt_e, disk_partition_t *partitions, int parts) |
40684ddb8 gpt: Support for ... |
442 |
{ |
e04350d29 disk: part_efi: c... |
443 |
lbaint_t offset = (lbaint_t)le64_to_cpu(gpt_h->first_usable_lba); |
e04350d29 disk: part_efi: c... |
444 445 |
lbaint_t last_usable_lba = (lbaint_t) le64_to_cpu(gpt_h->last_usable_lba); |
40684ddb8 gpt: Support for ... |
446 |
int i, k; |
67cd4a634 disk: Fix possibl... |
447 |
size_t efiname_len, dosname_len; |
b331cd620 cmd, disk: conver... |
448 |
#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
40684ddb8 gpt: Support for ... |
449 |
char *str_uuid; |
a96a0e615 part_efi: move uu... |
450 |
unsigned char *bin_uuid; |
40684ddb8 gpt: Support for ... |
451 |
#endif |
7561b258a gpt: add optional... |
452 453 454 455 |
#ifdef CONFIG_PARTITION_TYPE_GUID char *str_type_guid; unsigned char *bin_type_guid; #endif |
79c5912e8 part: efi: Disabl... |
456 457 458 459 460 461 462 |
size_t hdr_start = gpt_h->my_lba; size_t hdr_end = hdr_start + 1; size_t pte_start = gpt_h->partition_entry_lba; size_t pte_end = pte_start + gpt_h->num_partition_entries * gpt_h->sizeof_partition_entry / dev_desc->blksz; |
40684ddb8 gpt: Support for ... |
463 464 465 |
for (i = 0; i < parts; i++) { /* partition starting lba */ |
5276e8b62 part: efi: rework... |
466 467 |
lbaint_t start = partitions[i].start; lbaint_t size = partitions[i].size; |
40684ddb8 gpt: Support for ... |
468 |
if (start) { |
5276e8b62 part: efi: rework... |
469 |
offset = start + size; |
40684ddb8 gpt: Support for ... |
470 |
} else { |
79c5912e8 part: efi: Disabl... |
471 |
start = offset; |
5276e8b62 part: efi: rework... |
472 |
offset += size; |
40684ddb8 gpt: Support for ... |
473 |
} |
79c5912e8 part: efi: Disabl... |
474 475 476 477 478 |
/* * If our partition overlaps with either the GPT * header, or the partition entry, reject it. */ |
ae0e0228e disk: efi: correc... |
479 480 |
if (((start < hdr_end && hdr_start < (start + size)) || (start < pte_end && pte_start < (start + size)))) { |
79c5912e8 part: efi: Disabl... |
481 482 483 484 485 486 |
printf("Partition overlap "); return -1; } gpt_e[i].starting_lba = cpu_to_le64(start); |
a56538676 disk: part_efi: f... |
487 |
if (offset > (last_usable_lba + 1)) { |
40684ddb8 gpt: Support for ... |
488 489 490 491 492 |
printf("Partitions layout exceds disk size "); return -1; } /* partition ending lba */ |
5276e8b62 part: efi: rework... |
493 |
if ((i == parts - 1) && (size == 0)) |
40684ddb8 gpt: Support for ... |
494 495 496 497 |
/* extend the last partition to maximuim */ gpt_e[i].ending_lba = gpt_h->last_usable_lba; else gpt_e[i].ending_lba = cpu_to_le64(offset - 1); |
7561b258a gpt: add optional... |
498 499 500 501 502 503 504 505 506 507 508 509 510 511 |
#ifdef CONFIG_PARTITION_TYPE_GUID str_type_guid = partitions[i].type_guid; bin_type_guid = gpt_e[i].partition_type_guid.b; if (strlen(str_type_guid)) { if (uuid_str_to_bin(str_type_guid, bin_type_guid, UUID_STR_FORMAT_GUID)) { printf("Partition no. %d: invalid type guid: %s ", i, str_type_guid); return -1; } } else { /* default partition type GUID */ memcpy(bin_type_guid, |
44ab2d325 efi_loader: avoid... |
512 |
&partition_basic_data_guid, 16); |
7561b258a gpt: add optional... |
513 514 |
} #else |
40684ddb8 gpt: Support for ... |
515 516 |
/* partition type GUID */ memcpy(gpt_e[i].partition_type_guid.b, |
44ab2d325 efi_loader: avoid... |
517 |
&partition_basic_data_guid, 16); |
7561b258a gpt: add optional... |
518 |
#endif |
40684ddb8 gpt: Support for ... |
519 |
|
b331cd620 cmd, disk: conver... |
520 |
#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
40684ddb8 gpt: Support for ... |
521 |
str_uuid = partitions[i].uuid; |
a96a0e615 part_efi: move uu... |
522 |
bin_uuid = gpt_e[i].unique_partition_guid.b; |
9da52f8f6 gpt: Fix uuid str... |
523 |
if (uuid_str_to_bin(str_uuid, bin_uuid, UUID_STR_FORMAT_GUID)) { |
40684ddb8 gpt: Support for ... |
524 525 526 527 528 529 530 531 532 533 |
printf("Partition no. %d: invalid guid: %s ", i, str_uuid); return -1; } #endif /* partition attributes */ memset(&gpt_e[i].attributes, 0, sizeof(gpt_entry_attributes)); |
cfdaf4caa part:efi: add boo... |
534 535 |
if (partitions[i].bootable) gpt_e[i].attributes.fields.legacy_bios_bootable = 1; |
40684ddb8 gpt: Support for ... |
536 |
/* partition name */ |
67cd4a634 disk: Fix possibl... |
537 |
efiname_len = sizeof(gpt_e[i].partition_name) |
40684ddb8 gpt: Support for ... |
538 |
/ sizeof(efi_char16_t); |
67cd4a634 disk: Fix possibl... |
539 540 541 542 543 544 |
dosname_len = sizeof(partitions[i].name); memset(gpt_e[i].partition_name, 0, sizeof(gpt_e[i].partition_name)); for (k = 0; k < min(dosname_len, efiname_len); k++) |
40684ddb8 gpt: Support for ... |
545 546 |
gpt_e[i].partition_name[k] = (efi_char16_t)(partitions[i].name[k]); |
e04350d29 disk: part_efi: c... |
547 548 549 |
debug("%s: name: %s offset[%d]: 0x" LBAF " size[%d]: 0x" LBAF " ", |
40684ddb8 gpt: Support for ... |
550 |
__func__, partitions[i].name, i, |
5276e8b62 part: efi: rework... |
551 |
offset, i, size); |
40684ddb8 gpt: Support for ... |
552 553 554 555 |
} return 0; } |
02e43537b part_efi: support... |
556 557 558 |
static uint32_t partition_entries_offset(struct blk_desc *dev_desc) { uint32_t offset_blks = 2; |
89d33a2c0 part: efi: Fix of... |
559 |
uint32_t __maybe_unused offset_bytes; |
02e43537b part_efi: support... |
560 561 562 563 564 565 566 567 568 569 570 |
int __maybe_unused config_offset; #if defined(CONFIG_EFI_PARTITION_ENTRIES_OFF) /* * Some architectures require their SPL loader at a fixed * address within the first 16KB of the disk. To avoid an * overlap with the partition entries of the EFI partition * table, the first safe offset (in bytes, from the start of * the disk) for the entries can be set in * CONFIG_EFI_PARTITION_ENTRIES_OFF. */ |
89d33a2c0 part: efi: Fix of... |
571 |
offset_bytes = |
02e43537b part_efi: support... |
572 |
PAD_TO_BLOCKSIZE(CONFIG_EFI_PARTITION_ENTRIES_OFF, dev_desc); |
89d33a2c0 part: efi: Fix of... |
573 |
offset_blks = offset_bytes / dev_desc->blksz; |
02e43537b part_efi: support... |
574 575 576 577 578 579 580 581 582 583 584 |
#endif #if defined(CONFIG_OF_CONTROL) /* * Allow the offset of the first partition entires (in bytes * from the start of the device) to be specified as a property * of the device tree '/config' node. */ config_offset = fdtdec_get_config_int(gd->fdt_blob, "u-boot,efi-partition-entries-offset", -EINVAL); |
89d33a2c0 part: efi: Fix of... |
585 586 587 588 |
if (config_offset != -EINVAL) { offset_bytes = PAD_TO_BLOCKSIZE(config_offset, dev_desc); offset_blks = offset_bytes / dev_desc->blksz; } |
02e43537b part_efi: support... |
589 590 591 592 593 594 595 596 597 598 599 600 601 602 |
#endif debug("efi: partition entries offset (in blocks): %d ", offset_blks); /* * The earliest LBA this can be at is LBA#2 (i.e. right behind * the (protective) MBR and the GPT header. */ if (offset_blks < 2) offset_blks = 2; return offset_blks; } |
4101f6879 dm: Drop the bloc... |
603 |
int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h, |
40684ddb8 gpt: Support for ... |
604 605 |
char *str_guid, int parts_count) { |
67b905226 Rename GPT_HEADER... |
606 |
gpt_h->signature = cpu_to_le64(GPT_HEADER_SIGNATURE_UBOOT); |
40684ddb8 gpt: Support for ... |
607 608 609 610 |
gpt_h->revision = cpu_to_le32(GPT_HEADER_REVISION_V1); gpt_h->header_size = cpu_to_le32(sizeof(gpt_header)); gpt_h->my_lba = cpu_to_le64(1); gpt_h->alternate_lba = cpu_to_le64(dev_desc->lba - 1); |
40684ddb8 gpt: Support for ... |
611 |
gpt_h->last_usable_lba = cpu_to_le64(dev_desc->lba - 34); |
02e43537b part_efi: support... |
612 613 614 615 |
gpt_h->partition_entry_lba = cpu_to_le64(partition_entries_offset(dev_desc)); gpt_h->first_usable_lba = cpu_to_le64(le64_to_cpu(gpt_h->partition_entry_lba) + 32); |
40684ddb8 gpt: Support for ... |
616 617 618 619 |
gpt_h->num_partition_entries = cpu_to_le32(GPT_ENTRY_NUMBERS); gpt_h->sizeof_partition_entry = cpu_to_le32(sizeof(gpt_entry)); gpt_h->header_crc32 = 0; gpt_h->partition_entry_array_crc32 = 0; |
d718ded05 lib: uuid: code r... |
620 |
if (uuid_str_to_bin(str_guid, gpt_h->disk_guid.b, UUID_STR_FORMAT_GUID)) |
40684ddb8 gpt: Support for ... |
621 622 623 624 |
return -1; return 0; } |
4101f6879 dm: Drop the bloc... |
625 |
int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid, |
40684ddb8 gpt: Support for ... |
626 627 |
disk_partition_t *partitions, int parts_count) { |
bb021013b gpt: Use cache al... |
628 |
gpt_header *gpt_h; |
ae1768a72 disk/gpt: Fix GPT... |
629 |
gpt_entry *gpt_e; |
bb021013b gpt: Use cache al... |
630 |
int ret, size; |
ae1768a72 disk/gpt: Fix GPT... |
631 |
|
bb021013b gpt: Use cache al... |
632 633 |
size = PAD_TO_BLOCKSIZE(sizeof(gpt_header), dev_desc); gpt_h = malloc_cache_aligned(size); |
40684ddb8 gpt: Support for ... |
634 635 636 637 638 |
if (gpt_h == NULL) { printf("%s: calloc failed! ", __func__); return -1; } |
bb021013b gpt: Use cache al... |
639 |
memset(gpt_h, 0, size); |
40684ddb8 gpt: Support for ... |
640 |
|
bb021013b gpt: Use cache al... |
641 642 643 |
size = PAD_TO_BLOCKSIZE(GPT_ENTRY_NUMBERS * sizeof(gpt_entry), dev_desc); gpt_e = malloc_cache_aligned(size); |
40684ddb8 gpt: Support for ... |
644 645 646 647 648 649 |
if (gpt_e == NULL) { printf("%s: calloc failed! ", __func__); free(gpt_h); return -1; } |
bb021013b gpt: Use cache al... |
650 |
memset(gpt_e, 0, size); |
40684ddb8 gpt: Support for ... |
651 652 653 654 655 656 657 |
/* Generate Primary GPT header (LBA1) */ ret = gpt_fill_header(dev_desc, gpt_h, str_disk_guid, parts_count); if (ret) goto err; /* Generate partition entries */ |
47d7ee47b part: efi: make g... |
658 |
ret = gpt_fill_pte(dev_desc, gpt_h, gpt_e, partitions, parts_count); |
40684ddb8 gpt: Support for ... |
659 660 661 662 663 664 665 666 667 668 669 |
if (ret) goto err; /* Write GPT partition table */ ret = write_gpt_table(dev_desc, gpt_h, gpt_e); err: free(gpt_e); free(gpt_h); return ret; } |
0ff7e585d fastboot: handle ... |
670 |
|
06e921b18 disk: efi: avoid ... |
671 672 673 674 675 676 677 678 679 680 |
/** * gpt_convert_efi_name_to_char() - convert u16 string to char string * * TODO: this conversion only supports ANSI characters * * @s: target buffer * @es: u16 string to be converted * @n: size of target buffer */ static void gpt_convert_efi_name_to_char(char *s, void *es, int n) |
cef68bf90 gpt: part: Defini... |
681 |
{ |
06e921b18 disk: efi: avoid ... |
682 |
char *ess = es; |
cef68bf90 gpt: part: Defini... |
683 684 685 686 687 688 689 690 691 692 |
int i, j; memset(s, '\0', n); for (i = 0, j = 0; j < n; i += 2, j++) { s[j] = ess[i]; if (!ess[i]) return; } } |
4101f6879 dm: Drop the bloc... |
693 |
int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head, |
cef68bf90 gpt: part: Defini... |
694 695 696 697 698 699 700 701 702 703 704 705 706 707 |
gpt_entry **gpt_pte) { /* * This function validates AND * fills in the GPT header and PTE */ if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, gpt_pte) != 1) { printf("%s: *** ERROR: Invalid GPT *** ", __func__); return -1; } |
716f919d2 disk: efi: Fix me... |
708 709 710 |
/* Free pte before allocating again */ free(*gpt_pte); |
cef68bf90 gpt: part: Defini... |
711 712 713 714 715 716 717 718 719 720 |
if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head, gpt_pte) != 1) { printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return -1; } return 0; } |
4101f6879 dm: Drop the bloc... |
721 |
int gpt_verify_partitions(struct blk_desc *dev_desc, |
cef68bf90 gpt: part: Defini... |
722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 |
disk_partition_t *partitions, int parts, gpt_header *gpt_head, gpt_entry **gpt_pte) { char efi_str[PARTNAME_SZ + 1]; u64 gpt_part_size; gpt_entry *gpt_e; int ret, i; ret = gpt_verify_headers(dev_desc, gpt_head, gpt_pte); if (ret) return ret; gpt_e = *gpt_pte; for (i = 0; i < parts; i++) { if (i == gpt_head->num_partition_entries) { |
9b643e312 treewide: replace... |
738 739 |
pr_err("More partitions than allowed! "); |
cef68bf90 gpt: part: Defini... |
740 741 742 743 744 745 746 747 748 749 750 751 |
return -1; } /* Check if GPT and ENV partition names match */ gpt_convert_efi_name_to_char(efi_str, gpt_e[i].partition_name, PARTNAME_SZ + 1); debug("%s: part: %2d name - GPT: %16s, ENV: %16s ", __func__, i, efi_str, partitions[i].name); if (strncmp(efi_str, (char *)partitions[i].name, sizeof(partitions->name))) { |
9b643e312 treewide: replace... |
752 753 |
pr_err("Partition name: %s does not match %s! ", |
cef68bf90 gpt: part: Defini... |
754 755 756 757 758 759 760 761 |
efi_str, (char *)partitions[i].name); return -1; } /* Check if GPT and ENV sizes match */ gpt_part_size = le64_to_cpu(gpt_e[i].ending_lba) - le64_to_cpu(gpt_e[i].starting_lba) + 1; debug("size(LBA) - GPT: %8llu, ENV: %8llu ", |
f8d6165d4 dm: part: Correct... |
762 763 |
(unsigned long long)gpt_part_size, (unsigned long long)partitions[i].size); |
cef68bf90 gpt: part: Defini... |
764 765 |
if (le64_to_cpu(gpt_part_size) != partitions[i].size) { |
c2fdd3456 cmd: gpt: fix the... |
766 767 768 |
/* We do not check the extend partition size */ if ((i == parts - 1) && (partitions[i].size == 0)) continue; |
9b643e312 treewide: replace... |
769 770 |
pr_err("Partition %s size: %llu does not match %llu! ", |
f8d6165d4 dm: part: Correct... |
771 772 |
efi_str, (unsigned long long)gpt_part_size, (unsigned long long)partitions[i].size); |
cef68bf90 gpt: part: Defini... |
773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 |
return -1; } /* * Start address is optional - check only if provided * in '$partition' variable */ if (!partitions[i].start) { debug(" "); continue; } /* Check if GPT and ENV start LBAs match */ debug("start LBA - GPT: %8llu, ENV: %8llu ", le64_to_cpu(gpt_e[i].starting_lba), |
f8d6165d4 dm: part: Correct... |
790 |
(unsigned long long)partitions[i].start); |
cef68bf90 gpt: part: Defini... |
791 792 |
if (le64_to_cpu(gpt_e[i].starting_lba) != partitions[i].start) { |
9b643e312 treewide: replace... |
793 794 |
pr_err("Partition %s start: %llu does not match %llu! ", |
cef68bf90 gpt: part: Defini... |
795 |
efi_str, le64_to_cpu(gpt_e[i].starting_lba), |
f8d6165d4 dm: part: Correct... |
796 |
(unsigned long long)partitions[i].start); |
cef68bf90 gpt: part: Defini... |
797 798 799 800 801 802 |
return -1; } } return 0; } |
4101f6879 dm: Drop the bloc... |
803 |
int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf) |
0ff7e585d fastboot: handle ... |
804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 |
{ gpt_header *gpt_h; gpt_entry *gpt_e; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); if (validate_gpt_header(gpt_h, GPT_PRIMARY_PARTITION_TABLE_LBA, dev_desc->lba)) return -1; /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); if (validate_gpt_entries(gpt_h, gpt_e)) return -1; return 0; } |
4101f6879 dm: Drop the bloc... |
823 |
int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf) |
0ff7e585d fastboot: handle ... |
824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 |
{ gpt_header *gpt_h; gpt_entry *gpt_e; int gpt_e_blk_cnt; lbaint_t lba; int cnt; if (is_valid_gpt_buf(dev_desc, buf)) return -1; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); gpt_e_blk_cnt = BLOCK_CNT((le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)), dev_desc); /* write MBR */ lba = 0; /* MBR is always at 0 */ cnt = 1; /* MBR (1 block) */ |
2a981dc2c dm: block: Adjust... |
848 |
if (blk_dwrite(dev_desc, lba, cnt, buf) != cnt) { |
0ff7e585d fastboot: handle ... |
849 850 851 852 853 854 855 856 857 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "MBR", cnt, lba); return 1; } /* write Primary GPT */ lba = GPT_PRIMARY_PARTITION_TABLE_LBA; cnt = 1; /* GPT Header (1 block) */ |
2a981dc2c dm: block: Adjust... |
858 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { |
0ff7e585d fastboot: handle ... |
859 860 861 862 863 864 865 866 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Primary GPT Header", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; |
2a981dc2c dm: block: Adjust... |
867 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { |
0ff7e585d fastboot: handle ... |
868 869 870 871 872 873 874 875 876 877 878 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Primary GPT Entries", cnt, lba); return 1; } prepare_backup_gpt_header(gpt_h); /* write Backup GPT */ lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; |
2a981dc2c dm: block: Adjust... |
879 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { |
0ff7e585d fastboot: handle ... |
880 881 882 883 884 885 886 887 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Entries", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->my_lba); cnt = 1; /* GPT Header (1 block) */ |
2a981dc2c dm: block: Adjust... |
888 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { |
0ff7e585d fastboot: handle ... |
889 890 891 892 893 894 895 896 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Header", cnt, lba); return 1; } return 0; } |
a2018ab0d MLK-18591-3 andro... |
897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 |
int write_backup_gpt_partitions(struct blk_desc *dev_desc, void *buf) { gpt_header *gpt_h; gpt_entry *gpt_e; int gpt_e_blk_cnt; lbaint_t lba; int cnt; if (is_valid_gpt_buf(dev_desc, buf)) return -1; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); gpt_e_blk_cnt = BLOCK_CNT((le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)), dev_desc); /* write MBR */ lba = 0; /* MBR is always at 0 */ cnt = 1; /* MBR (1 block) */ if (blk_dwrite(dev_desc, lba, cnt, buf) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "MBR", cnt, lba); return 1; } prepare_last_lba_gpt_header(dev_desc, gpt_h); /* write Backup GPT */ lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Entries", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->my_lba); cnt = 1; /* GPT Header (1 block) */ if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Header", cnt, lba); return 1; } return 0; } |
40684ddb8 gpt: Support for ... |
952 |
#endif |
07f3d789b Add support for C... |
953 954 955 956 957 958 959 960 961 962 963 |
/* * Private functions */ /* * pmbr_part_valid(): Check for EFI partition signature * * Returns: 1 if EFI GPT partition type is found. */ static int pmbr_part_valid(struct partition *part) { if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT && |
8faefadb7 disk: fix unalign... |
964 |
get_unaligned_le32(&part->start_sect) == 1UL) { |
07f3d789b Add support for C... |
965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 |
return 1; } return 0; } /* * is_pmbr_valid(): test Protective MBR for validity * * Returns: 1 if PMBR is valid, 0 otherwise. * Validity depends on two things: * 1) MSDOS signature is in the last two bytes of the MBR * 2) One partition of type 0xEE is found, checked by pmbr_part_valid() */ static int is_pmbr_valid(legacy_mbr * mbr) { int i = 0; |
fae2bf22a gpt: The leXX_to_... |
982 |
if (!mbr || le16_to_cpu(mbr->signature) != MSDOS_MBR_SIGNATURE) |
07f3d789b Add support for C... |
983 |
return 0; |
07f3d789b Add support for C... |
984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 |
for (i = 0; i < 4; i++) { if (pmbr_part_valid(&mbr->partition_record[i])) { return 1; } } return 0; } /** * is_gpt_valid() - tests one GPT header and PTEs for validity * * lba is the logical block address of the GPT header to test * gpt is a GPT header ptr, filled on return. * ptes is a PTEs ptr, filled on return. * |
0557d46b6 disk: efi: ignore... |
1000 |
* Description: returns 1 if valid, 0 on error, 2 if ignored header |
07f3d789b Add support for C... |
1001 1002 |
* If valid, returns pointers to PTEs. */ |
4101f6879 dm: Drop the bloc... |
1003 |
static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba, |
e04350d29 disk: part_efi: c... |
1004 |
gpt_header *pgpt_head, gpt_entry **pgpt_pte) |
07f3d789b Add support for C... |
1005 |
{ |
b351ccf11 part_efi: In is_g... |
1006 |
/* Confirm valid arguments prior to allocation. */ |
07f3d789b Add support for C... |
1007 |
if (!dev_desc || !pgpt_head) { |
df70b1c2e cosmetic: Replace... |
1008 1009 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1010 1011 |
return 0; } |
3cc566117 disk: efi: correc... |
1012 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, mbr, 1, dev_desc->blksz); |
b351ccf11 part_efi: In is_g... |
1013 |
|
ff98cb905 part: extract MBR... |
1014 1015 1016 1017 1018 1019 |
/* Read MBR Header from device */ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) { printf("*** ERROR: Can't read MBR header *** "); return 0; } |
07f3d789b Add support for C... |
1020 |
/* Read GPT Header from device */ |
2a981dc2c dm: block: Adjust... |
1021 |
if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) { |
07f3d789b Add support for C... |
1022 1023 1024 1025 |
printf("*** ERROR: Can't read GPT header *** "); return 0; } |
0557d46b6 disk: efi: ignore... |
1026 1027 1028 1029 1030 1031 |
/* Invalid but nothing to yell about. */ if (le64_to_cpu(pgpt_head->signature) == GPT_HEADER_CHROMEOS_IGNORE) { debug("ChromeOS 'IGNOREME' GPT header found and ignored "); return 2; } |
e1f6b0a02 disk: part_efi: m... |
1032 |
if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba)) |
07f3d789b Add support for C... |
1033 |
return 0; |
07f3d789b Add support for C... |
1034 |
|
ff98cb905 part: extract MBR... |
1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 |
if (dev_desc->sig_type == SIG_TYPE_NONE) { efi_guid_t empty = {}; if (memcmp(&pgpt_head->disk_guid, &empty, sizeof(empty))) { dev_desc->sig_type = SIG_TYPE_GUID; memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid, sizeof(empty)); } else if (mbr->unique_mbr_signature != 0) { dev_desc->sig_type = SIG_TYPE_MBR; dev_desc->mbr_sig = mbr->unique_mbr_signature; } } |
07f3d789b Add support for C... |
1046 1047 1048 1049 1050 1051 1052 |
/* Read and allocate Partition Table Entries */ *pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head); if (*pgpt_pte == NULL) { printf("GPT: Failed to allocate memory for PTE "); return 0; } |
e1f6b0a02 disk: part_efi: m... |
1053 |
if (validate_gpt_entries(pgpt_head, *pgpt_pte)) { |
deb5ca802 disk: part_efi: f... |
1054 |
free(*pgpt_pte); |
07f3d789b Add support for C... |
1055 1056 1057 1058 1059 1060 1061 1062 |
return 0; } /* We're done, all's well */ return 1; } /** |
20c568cae disk: efi: unify ... |
1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 |
* find_valid_gpt() - finds a valid GPT header and PTEs * * gpt is a GPT header ptr, filled on return. * ptes is a PTEs ptr, filled on return. * * Description: returns 1 if found a valid gpt, 0 on error. * If valid, returns pointers to PTEs. */ static int find_valid_gpt(struct blk_desc *dev_desc, gpt_header *gpt_head, gpt_entry **pgpt_pte) { |
0557d46b6 disk: efi: ignore... |
1074 1075 1076 1077 1078 1079 1080 |
int r; r = is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, pgpt_pte); if (r != 1) { if (r != 2) |
a2018ab0d MLK-18591-3 andro... |
1081 1082 |
debug("%s: *** ERROR: Invalid GPT *** ", __func__); |
0557d46b6 disk: efi: ignore... |
1083 1084 1085 |
if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head, pgpt_pte) != 1) { |
20c568cae disk: efi: unify ... |
1086 1087 1088 1089 1090 |
printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return 0; } |
0557d46b6 disk: efi: ignore... |
1091 |
if (r != 2) |
a2018ab0d MLK-18591-3 andro... |
1092 1093 |
debug("%s: *** Using Backup GPT *** ", |
0557d46b6 disk: efi: ignore... |
1094 |
__func__); |
20c568cae disk: efi: unify ... |
1095 1096 1097 1098 1099 |
} return 1; } /** |
07f3d789b Add support for C... |
1100 1101 1102 1103 1104 1105 1106 1107 |
* alloc_read_gpt_entries(): reads partition entries from disk * @dev_desc * @gpt - GPT header * * Description: Returns ptes on success, NULL on error. * Allocates space for PTEs based on information found in @gpt. * Notes: remember to free pte when you're done! */ |
4101f6879 dm: Drop the bloc... |
1108 1109 |
static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc, gpt_header *pgpt_head) |
07f3d789b Add support for C... |
1110 |
{ |
ae1768a72 disk/gpt: Fix GPT... |
1111 |
size_t count = 0, blk_cnt; |
7c4213f6a block: pass block... |
1112 |
lbaint_t blk; |
07f3d789b Add support for C... |
1113 1114 1115 |
gpt_entry *pte = NULL; if (!dev_desc || !pgpt_head) { |
df70b1c2e cosmetic: Replace... |
1116 1117 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1118 1119 |
return NULL; } |
fae2bf22a gpt: The leXX_to_... |
1120 1121 |
count = le32_to_cpu(pgpt_head->num_partition_entries) * le32_to_cpu(pgpt_head->sizeof_partition_entry); |
07f3d789b Add support for C... |
1122 |
|
5afb8d151 part_efi: Fix com... |
1123 1124 |
debug("%s: count = %u * %u = %lu ", __func__, |
fae2bf22a gpt: The leXX_to_... |
1125 |
(u32) le32_to_cpu(pgpt_head->num_partition_entries), |
5afb8d151 part_efi: Fix com... |
1126 1127 |
(u32) le32_to_cpu(pgpt_head->sizeof_partition_entry), (ulong)count); |
07f3d789b Add support for C... |
1128 |
|
ed915f7d4 MA-14916-4 suppor... |
1129 1130 1131 1132 1133 1134 |
/* Allocate memory for PTE. * Heap memory is very limited in SPL, if the dual bootloader is * enabled, just load pte to dram instead of oc-ram. In such case, * this part of memory shouldn't be freed. But in common routine, * don't forget to free the memory after use. */ |
07f3d789b Add support for C... |
1135 |
if (count != 0) { |
ed915f7d4 MA-14916-4 suppor... |
1136 1137 1138 |
#if defined(CONFIG_DUAL_BOOTLOADER) && defined(CONFIG_SPL_BUILD) pte = (gpt_entry *)CONFIG_SYS_SPL_PTE_RAM_BASE; #else |
ae1768a72 disk/gpt: Fix GPT... |
1139 1140 |
pte = memalign(ARCH_DMA_MINALIGN, PAD_TO_BLOCKSIZE(count, dev_desc)); |
ed915f7d4 MA-14916-4 suppor... |
1141 |
#endif |
07f3d789b Add support for C... |
1142 1143 1144 |
} if (count == 0 || pte == NULL) { |
5afb8d151 part_efi: Fix com... |
1145 1146 1147 |
printf("%s: ERROR: Can't allocate %#lX bytes for GPT Entries ", __func__, (ulong)count); |
07f3d789b Add support for C... |
1148 1149 1150 1151 |
return NULL; } /* Read GPT Entries from device */ |
7c4213f6a block: pass block... |
1152 |
blk = le64_to_cpu(pgpt_head->partition_entry_lba); |
ae1768a72 disk/gpt: Fix GPT... |
1153 |
blk_cnt = BLOCK_CNT(count, dev_desc); |
2a981dc2c dm: block: Adjust... |
1154 |
if (blk_dread(dev_desc, blk, (lbaint_t)blk_cnt, pte) != blk_cnt) { |
07f3d789b Add support for C... |
1155 1156 |
printf("*** ERROR: Can't read GPT Entries *** "); |
ed915f7d4 MA-14916-4 suppor... |
1157 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
07f3d789b Add support for C... |
1158 |
free(pte); |
ed915f7d4 MA-14916-4 suppor... |
1159 |
#endif |
07f3d789b Add support for C... |
1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 |
return NULL; } return pte; } /** * is_pte_valid(): validates a single Partition Table Entry * @gpt_entry - Pointer to a single Partition Table Entry * * Description: returns 1 if valid, 0 on error. */ static int is_pte_valid(gpt_entry * pte) { efi_guid_t unused_guid; if (!pte) { |
df70b1c2e cosmetic: Replace... |
1176 1177 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 |
return 0; } /* Only one validation for now: * The GUID Partition Type != Unused Entry (ALL-ZERO) */ memset(unused_guid.b, 0, sizeof(unused_guid.b)); if (memcmp(pte->partition_type_guid.b, unused_guid.b, sizeof(unused_guid.b)) == 0) { |
df70b1c2e cosmetic: Replace... |
1188 1189 |
debug("%s: Found an unused PTE GUID at 0x%08X ", __func__, |
9936be31f disk: Address cas... |
1190 |
(unsigned int)(uintptr_t)pte); |
07f3d789b Add support for C... |
1191 1192 1193 1194 1195 1196 |
return 0; } else { return 1; } } |
96e5b03c8 dm: part: Convert... |
1197 1198 1199 1200 1201 1202 1203 1204 1205 |
/* * Add an 'a_' prefix so it comes before 'dos' in the linker list. We need to * check EFI first, since a DOS partition is often used as a 'protective MBR' * with EFI. */ U_BOOT_PART_TYPE(a_efi) = { .name = "EFI", .part_type = PART_TYPE_EFI, |
87b8530fe disk: part: imple... |
1206 |
.max_entries = GPT_ENTRY_NUMBERS, |
3e8bd4695 dm: part: Rename ... |
1207 |
.get_info = part_get_info_ptr(part_get_info_efi), |
084bf4c24 part: Rename test... |
1208 1209 |
.print = part_print_ptr(part_print_efi), .test = part_test_efi, |
96e5b03c8 dm: part: Convert... |
1210 |
}; |
07f3d789b Add support for C... |
1211 |
#endif |