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Add support for CONFIG_EFI_PARTITION (GUID Partition Table)
The GUID (Globally Unique Identifier) Partition Table (GPT) is a part of EFI. See http://en.wikipedia.org/wiki/GUID_Partition_Table Based on linux/fs/partitions/efi.[ch] Signed-off-by: Richard Retanubun <RichardRetanubun@RugggedCom.com>
This commit is contained in:
richardretanubun
Wolfgang Denk
parent
fbc87dc054
commit
07f3d789b9
2
README
2
README
@ -687,7 +687,7 @@ The following options need to be configured:
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- Partition Support:
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CONFIG_MAC_PARTITION and/or CONFIG_DOS_PARTITION
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and/or CONFIG_ISO_PARTITION
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and/or CONFIG_ISO_PARTITION and/or CONFIG_EFI_PARTITION
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If IDE or SCSI support is enabled (CONFIG_CMD_IDE or
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CONFIG_CMD_SCSI) you must configure support for at
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@ -32,6 +32,7 @@ COBJS-y += part_mac.o
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COBJS-y += part_dos.o
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COBJS-y += part_iso.o
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COBJS-y += part_amiga.o
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COBJS-y += part_efi.o
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COBJS := $(COBJS-y)
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SRCS := $(COBJS:.o=.c)
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33
disk/part.c
33
disk/part.c
@ -212,7 +212,8 @@ void dev_print (block_dev_desc_t *dev_desc)
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#if defined(CONFIG_MAC_PARTITION) || \
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defined(CONFIG_DOS_PARTITION) || \
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defined(CONFIG_ISO_PARTITION) || \
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defined(CONFIG_AMIGA_PARTITION)
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defined(CONFIG_AMIGA_PARTITION) || \
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defined(CONFIG_EFI_PARTITION)
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void init_part (block_dev_desc_t * dev_desc)
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{
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@ -230,6 +231,14 @@ void init_part (block_dev_desc_t * dev_desc)
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}
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#endif
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/* must be placed before DOS partition detection */
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#ifdef CONFIG_EFI_PARTITION
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if (test_part_efi(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_EFI;
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return;
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}
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#endif
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#ifdef CONFIG_DOS_PARTITION
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if (test_part_dos(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_DOS;
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@ -286,6 +295,15 @@ int get_partition_info (block_dev_desc_t *dev_desc, int part
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}
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break;
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#endif
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#ifdef CONFIG_EFI_PARTITION
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case PART_TYPE_EFI:
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if (get_partition_info_efi(dev_desc,part,info) == 0) {
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PRINTF ("## Valid EFI partition found ##\n");
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return (0);
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}
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break;
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#endif
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default:
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break;
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}
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@ -356,14 +374,23 @@ void print_part (block_dev_desc_t * dev_desc)
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print_part_amiga (dev_desc);
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return;
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#endif
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#ifdef CONFIG_EFI_PARTITION
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case PART_TYPE_EFI:
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PRINTF ("## Testing for valid EFI partition ##\n");
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print_part_header ("EFI", dev_desc);
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print_part_efi (dev_desc);
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return;
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#endif
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}
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puts ("## Unknown partition table\n");
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}
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#else /* neither MAC nor DOS nor ISO partition configured */
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#else /* neither MAC nor DOS nor ISO nor AMIGA nor EFI partition configured */
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# error neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION
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# error nor CONFIG_ISO_PARTITION configured!
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# error nor CONFIG_ISO_PARTITION nor CONFIG_AMIGA_PARTITION
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# error nor CONFIG_EFI_PARTITION configured!
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#endif
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#endif
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425
disk/part_efi.c
Normal file
425
disk/part_efi.c
Normal file
@ -0,0 +1,425 @@
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/*
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* Copyright (C) 2008 RuggedCom, Inc.
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* Richard Retanubun <RichardRetanubun@RuggedCom.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Problems with CFG_64BIT_LBA:
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*
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* struct disk_partition.start in include/part.h is sized as ulong.
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* When CFG_64BIT_LBA is activated, lbaint_t changes from ulong to uint64_t.
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* For now, it is cast back to ulong at assignment.
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*
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* This limits the maximum size of addressable storage to < 2 Terra Bytes
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*/
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#include <common.h>
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#include <command.h>
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#include <ide.h>
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#include <malloc.h>
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#include "part_efi.h"
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#if (defined(CONFIG_CMD_IDE) || \
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defined(CONFIG_CMD_SATA) || \
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defined(CONFIG_CMD_SCSI) || \
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defined(CONFIG_CMD_USB) || \
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defined(CONFIG_MMC) || \
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defined(CONFIG_SYSTEMACE) ) && defined(CONFIG_EFI_PARTITION)
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/* Convert char[2] in little endian format to the host format integer
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*/
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static inline unsigned short le16_to_int(unsigned char *le16)
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{
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return ((le16[1] << 8) + le16[0]);
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}
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/* Convert char[4] in little endian format to the host format integer
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*/
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static inline unsigned long le32_to_int(unsigned char *le32)
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{
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return ((le32[3] << 24) + (le32[2] << 16) + (le32[1] << 8) + le32[0]);
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}
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/* Convert char[8] in little endian format to the host format integer
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*/
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static inline unsigned long long le64_to_int(unsigned char *le64)
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{
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return (((unsigned long long)le64[7] << 56) +
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((unsigned long long)le64[6] << 48) +
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((unsigned long long)le64[5] << 40) +
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((unsigned long long)le64[4] << 32) +
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((unsigned long long)le64[3] << 24) +
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((unsigned long long)le64[2] << 16) +
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((unsigned long long)le64[1] << 8) +
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(unsigned long long)le64[0]);
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}
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/**
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* efi_crc32() - EFI version of crc32 function
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* @buf: buffer to calculate crc32 of
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* @len - length of buf
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*
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* Description: Returns EFI-style CRC32 value for @buf
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*/
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static inline unsigned long efi_crc32(const void *buf, unsigned long len)
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{
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return crc32(0, buf, len);
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}
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/*
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* Private function prototypes
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*/
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static int pmbr_part_valid(struct partition *part);
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static int is_pmbr_valid(legacy_mbr * mbr);
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static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
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gpt_header * pgpt_head, gpt_entry ** pgpt_pte);
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static gpt_entry *alloc_read_gpt_entries(block_dev_desc_t * dev_desc,
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gpt_header * pgpt_head);
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static int is_pte_valid(gpt_entry * pte);
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/*
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* Public Functions (include/part.h)
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*/
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void print_part_efi(block_dev_desc_t * dev_desc)
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{
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gpt_header gpt_head;
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gpt_entry **pgpt_pte = NULL;
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int i = 0;
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if (!dev_desc) {
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printf("%s: Invalid Argument(s)\n", __FUNCTION__);
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return;
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}
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/* This function validates AND fills in the GPT header and PTE */
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if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,
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&(gpt_head), pgpt_pte) != 1) {
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printf("%s: *** ERROR: Invalid GPT ***\n", __FUNCTION__);
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return;
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}
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debug("%s: gpt-entry at 0x%08X\n", __FUNCTION__, (unsigned int)*pgpt_pte);
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printf("Part Start LBA End LBA\n");
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for (i = 0; i < le32_to_int(gpt_head.num_partition_entries); i++) {
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if (is_pte_valid(&(*pgpt_pte)[i])) {
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printf("%s%d 0x%llX 0x%llX\n", GPT_ENTRY_NAME,
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(i + 1),
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le64_to_int((*pgpt_pte)[i].starting_lba),
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le64_to_int((*pgpt_pte)[i].ending_lba));
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} else {
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break; /* Stop at the first non valid PTE */
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}
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}
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/* Remember to free pte */
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if (*pgpt_pte != NULL) {
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debug("%s: Freeing pgpt_pte\n", __FUNCTION__);
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free(*pgpt_pte);
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}
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return;
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}
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int get_partition_info_efi(block_dev_desc_t * dev_desc, int part,
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disk_partition_t * info)
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{
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gpt_header gpt_head;
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gpt_entry **pgpt_pte = NULL;
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/* "part" argument must be at least 1 */
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if (!dev_desc || !info || part < 1) {
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printf("%s: Invalid Argument(s)\n", __FUNCTION__);
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return -1;
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}
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/* This function validates AND fills in the GPT header and PTE */
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if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,
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&(gpt_head), pgpt_pte) != 1) {
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printf("%s: *** ERROR: Invalid GPT ***\n", __FUNCTION__);
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return -1;
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}
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/* The ulong casting limits the maximum disk size to 2 TB */
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info->start = (ulong) le64_to_int((*pgpt_pte)[part - 1].starting_lba);
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info->size = (ulong) le64_to_int((*pgpt_pte)[part - 1].ending_lba) - info->start;
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info->blksz = GPT_BLOCK_SIZE;
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sprintf((char *)info->name, "%s%d\n", GPT_ENTRY_NAME, part);
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sprintf((char *)info->type, "U-Boot");
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debug("%s: start 0x%lX, size 0x%lX, name %s", __FUNCTION__,
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info->start, info->size, info->name);
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/* Remember to free pte */
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if (*pgpt_pte != NULL) {
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debug("%s: Freeing pgpt_pte\n", __FUNCTION__);
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free(*pgpt_pte);
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}
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return 0;
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}
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int test_part_efi(block_dev_desc_t * dev_desc)
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{
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legacy_mbr legacymbr;
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/* Read legacy MBR from block 0 and validate it */
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if ((dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) & legacymbr) != 1)
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|| (is_pmbr_valid(&legacymbr) != 1)) {
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return -1;
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}
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return 0;
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}
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/*
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* Private functions
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*/
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/*
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* pmbr_part_valid(): Check for EFI partition signature
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*
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* Returns: 1 if EFI GPT partition type is found.
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*/
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static int pmbr_part_valid(struct partition *part)
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{
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if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT &&
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le32_to_int(part->start_sect) == 1UL) {
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return 1;
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}
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return 0;
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}
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/*
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* is_pmbr_valid(): test Protective MBR for validity
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*
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* Returns: 1 if PMBR is valid, 0 otherwise.
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* Validity depends on two things:
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* 1) MSDOS signature is in the last two bytes of the MBR
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* 2) One partition of type 0xEE is found, checked by pmbr_part_valid()
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*/
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static int is_pmbr_valid(legacy_mbr * mbr)
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{
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int i = 0;
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if (!mbr || le16_to_int(mbr->signature) != MSDOS_MBR_SIGNATURE) {
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return 0;
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}
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for (i = 0; i < 4; i++) {
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if (pmbr_part_valid(&mbr->partition_record[i])) {
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return 1;
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}
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}
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return 0;
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}
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/**
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* is_gpt_valid() - tests one GPT header and PTEs for validity
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*
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* lba is the logical block address of the GPT header to test
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* gpt is a GPT header ptr, filled on return.
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* ptes is a PTEs ptr, filled on return.
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*
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* Description: returns 1 if valid, 0 on error.
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* If valid, returns pointers to PTEs.
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*/
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static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
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gpt_header * pgpt_head, gpt_entry ** pgpt_pte)
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{
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unsigned char crc32_backup[4] = { 0 };
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unsigned long calc_crc32;
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unsigned long long lastlba;
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if (!dev_desc || !pgpt_head) {
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printf("%s: Invalid Argument(s)\n", __FUNCTION__);
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return 0;
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}
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/* Read GPT Header from device */
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if (dev_desc->block_read(dev_desc->dev, lba, 1, pgpt_head) != 1) {
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printf("*** ERROR: Can't read GPT header ***\n");
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return 0;
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}
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/* Check the GPT header signature */
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if (le64_to_int(pgpt_head->signature) != GPT_HEADER_SIGNATURE) {
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printf("GUID Partition Table Header signature is wrong:"
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"0x%llX != 0x%llX\n",
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(unsigned long long)le64_to_int(pgpt_head->signature),
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(unsigned long long)GPT_HEADER_SIGNATURE);
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return 0;
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}
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/* Check the GUID Partition Table CRC */
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memcpy(crc32_backup, pgpt_head->header_crc32, sizeof(crc32_backup));
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memset(pgpt_head->header_crc32, 0, sizeof(pgpt_head->header_crc32));
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calc_crc32 = efi_crc32((const unsigned char *)pgpt_head,
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le32_to_int(pgpt_head->header_size));
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memcpy(pgpt_head->header_crc32, crc32_backup, sizeof(crc32_backup));
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if (calc_crc32 != le32_to_int(crc32_backup)) {
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printf("GUID Partition Table Header CRC is wrong:"
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"0x%08lX != 0x%08lX\n",
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le32_to_int(crc32_backup), calc_crc32);
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return 0;
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}
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/* Check that the my_lba entry points to the LBA that contains the GPT */
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if (le64_to_int(pgpt_head->my_lba) != lba) {
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printf("GPT: my_lba incorrect: %llX != %llX\n",
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(unsigned long long)le64_to_int(pgpt_head->my_lba),
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(unsigned long long)lba);
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return 0;
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}
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/* Check the first_usable_lba and last_usable_lba are within the disk. */
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lastlba = (unsigned long long)dev_desc->lba;
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if (le64_to_int(pgpt_head->first_usable_lba) > lastlba) {
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printf("GPT: first_usable_lba incorrect: %llX > %llX\n",
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le64_to_int(pgpt_head->first_usable_lba), lastlba);
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return 0;
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}
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if (le64_to_int(pgpt_head->last_usable_lba) > lastlba) {
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printf("GPT: last_usable_lba incorrect: %llX > %llX\n",
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le64_to_int(pgpt_head->last_usable_lba), lastlba);
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return 0;
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}
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debug("GPT: first_usable_lba: %llX last_usable_lba %llX last lba %llX\n",
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le64_to_int(pgpt_head->first_usable_lba),
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le64_to_int(pgpt_head->last_usable_lba), lastlba);
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/* Read and allocate Partition Table Entries */
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*pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);
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if (*pgpt_pte == NULL) {
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printf("GPT: Failed to allocate memory for PTE\n");
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return 0;
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}
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/* Check the GUID Partition Table Entry Array CRC */
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calc_crc32 = efi_crc32((const unsigned char *)*pgpt_pte,
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le32_to_int(pgpt_head->num_partition_entries) *
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le32_to_int(pgpt_head->sizeof_partition_entry));
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if (calc_crc32 != le32_to_int(pgpt_head->partition_entry_array_crc32)) {
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printf("GUID Partition Table Entry Array CRC is wrong:"
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"0x%08lX != 0x%08lX\n",
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le32_to_int(pgpt_head->partition_entry_array_crc32),
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calc_crc32);
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if (*pgpt_pte != NULL) {
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free(*pgpt_pte);
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}
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return 0;
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}
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/* We're done, all's well */
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return 1;
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}
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/**
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* alloc_read_gpt_entries(): reads partition entries from disk
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* @dev_desc
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* @gpt - GPT header
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*
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* Description: Returns ptes on success, NULL on error.
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* Allocates space for PTEs based on information found in @gpt.
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* Notes: remember to free pte when you're done!
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*/
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static gpt_entry *alloc_read_gpt_entries(block_dev_desc_t * dev_desc,
|
||||
gpt_header * pgpt_head)
|
||||
{
|
||||
size_t count = 0;
|
||||
gpt_entry *pte = NULL;
|
||||
|
||||
if (!dev_desc || !pgpt_head) {
|
||||
printf("%s: Invalid Argument(s)\n", __FUNCTION__);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
count = le32_to_int(pgpt_head->num_partition_entries) *
|
||||
le32_to_int(pgpt_head->sizeof_partition_entry);
|
||||
|
||||
debug("%s: count = %lu * %lu = %u\n", __FUNCTION__,
|
||||
le32_to_int(pgpt_head->num_partition_entries),
|
||||
le32_to_int(pgpt_head->sizeof_partition_entry), count);
|
||||
|
||||
/* Allocate memory for PTE, remember to FREE */
|
||||
if (count != 0) {
|
||||
pte = malloc(count);
|
||||
}
|
||||
|
||||
if (count == 0 || pte == NULL) {
|
||||
printf("%s: ERROR: Can't allocate 0x%X bytes for GPT Entries\n",
|
||||
__FUNCTION__, count);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Read GPT Entries from device */
|
||||
if (dev_desc->block_read (dev_desc->dev,
|
||||
(unsigned long)le64_to_int(pgpt_head->partition_entry_lba),
|
||||
(lbaint_t) (count / GPT_BLOCK_SIZE), pte)
|
||||
!= (count / GPT_BLOCK_SIZE)) {
|
||||
|
||||
printf("*** ERROR: Can't read GPT Entries ***\n");
|
||||
free(pte);
|
||||
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) {
|
||||
printf("%s: Invalid Argument(s)\n", __FUNCTION__);
|
||||
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) {
|
||||
|
||||
debug("%s: Found an unused PTE GUID at 0x%08X\n", __FUNCTION__,
|
||||
(unsigned int)pte);
|
||||
|
||||
return 0;
|
||||
} else {
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
138
disk/part_efi.h
Normal file
138
disk/part_efi.h
Normal file
@ -0,0 +1,138 @@
|
||||
/*
|
||||
* Copyright (C) 2008 RuggedCom, Inc.
|
||||
* Richard Retanubun <RichardRetanubun@RuggedCom.com>
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
* MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* See also linux/fs/partitions/efi.h
|
||||
*
|
||||
* EFI GUID Partition Table
|
||||
* Per Intel EFI Specification v1.02
|
||||
* http://developer.intel.com/technology/efi/efi.htm
|
||||
*/
|
||||
|
||||
#ifndef _DISK_PART_EFI_H
|
||||
#define _DISK_PART_EFI_H
|
||||
|
||||
#define MSDOS_MBR_SIGNATURE 0xAA55
|
||||
#define EFI_PMBR_OSTYPE_EFI 0xEF
|
||||
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
|
||||
|
||||
#define GPT_BLOCK_SIZE 512
|
||||
#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
|
||||
#define GPT_HEADER_REVISION_V1 0x00010000
|
||||
#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
|
||||
#define GPT_ENTRY_NAME "gpt"
|
||||
|
||||
#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
|
||||
((efi_guid_t) \
|
||||
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
|
||||
(b) & 0xff, ((b) >> 8) & 0xff, \
|
||||
(c) & 0xff, ((c) >> 8) & 0xff, \
|
||||
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
|
||||
|
||||
#define PARTITION_SYSTEM_GUID \
|
||||
EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
|
||||
0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
|
||||
#define LEGACY_MBR_PARTITION_GUID \
|
||||
EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
|
||||
0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
|
||||
#define PARTITION_MSFT_RESERVED_GUID \
|
||||
EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
|
||||
0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
|
||||
#define PARTITION_BASIC_DATA_GUID \
|
||||
EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
|
||||
0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
|
||||
#define PARTITION_LINUX_RAID_GUID \
|
||||
EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
|
||||
0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
|
||||
#define PARTITION_LINUX_SWAP_GUID \
|
||||
EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
|
||||
0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
|
||||
#define PARTITION_LINUX_LVM_GUID \
|
||||
EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
|
||||
0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
|
||||
|
||||
/* linux/include/efi.h */
|
||||
typedef unsigned short efi_char16_t;
|
||||
|
||||
typedef struct {
|
||||
unsigned char b[16];
|
||||
} efi_guid_t;
|
||||
|
||||
/* based on linux/include/genhd.h */
|
||||
struct partition {
|
||||
unsigned char boot_ind; /* 0x80 - active */
|
||||
unsigned char head; /* starting head */
|
||||
unsigned char sector; /* starting sector */
|
||||
unsigned char cyl; /* starting cylinder */
|
||||
unsigned char sys_ind; /* What partition type */
|
||||
unsigned char end_head; /* end head */
|
||||
unsigned char end_sector; /* end sector */
|
||||
unsigned char end_cyl; /* end cylinder */
|
||||
unsigned char start_sect[4]; /* starting sector counting from 0 */
|
||||
unsigned char nr_sects[4]; /* nr of sectors in partition */
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/* based on linux/fs/partitions/efi.h */
|
||||
typedef struct _gpt_header {
|
||||
unsigned char signature[8];
|
||||
unsigned char revision[4];
|
||||
unsigned char header_size[4];
|
||||
unsigned char header_crc32[4];
|
||||
unsigned char reserved1[4];
|
||||
unsigned char my_lba[8];
|
||||
unsigned char alternate_lba[8];
|
||||
unsigned char first_usable_lba[8];
|
||||
unsigned char last_usable_lba[8];
|
||||
efi_guid_t disk_guid;
|
||||
unsigned char partition_entry_lba[8];
|
||||
unsigned char num_partition_entries[4];
|
||||
unsigned char sizeof_partition_entry[4];
|
||||
unsigned char partition_entry_array_crc32[4];
|
||||
unsigned char reserved2[GPT_BLOCK_SIZE - 92];
|
||||
} __attribute__ ((packed)) gpt_header;
|
||||
|
||||
typedef struct _gpt_entry_attributes {
|
||||
unsigned long long required_to_function:1;
|
||||
unsigned long long reserved:47;
|
||||
unsigned long long type_guid_specific:16;
|
||||
} __attribute__ ((packed)) gpt_entry_attributes;
|
||||
|
||||
typedef struct _gpt_entry {
|
||||
efi_guid_t partition_type_guid;
|
||||
efi_guid_t unique_partition_guid;
|
||||
unsigned char starting_lba[8];
|
||||
unsigned char ending_lba[8];
|
||||
gpt_entry_attributes attributes;
|
||||
efi_char16_t partition_name[72 / sizeof(efi_char16_t)];
|
||||
}
|
||||
__attribute__ ((packed)) gpt_entry;
|
||||
|
||||
typedef struct _legacy_mbr {
|
||||
unsigned char boot_code[440];
|
||||
unsigned char unique_mbr_signature[4];
|
||||
unsigned char unknown[2];
|
||||
struct partition partition_record[4];
|
||||
unsigned char signature[2];
|
||||
} __attribute__ ((packed)) legacy_mbr;
|
||||
|
||||
#endif /* _DISK_PART_EFI_H */
|
||||
@ -69,6 +69,7 @@ typedef struct block_dev_desc {
|
||||
#define PART_TYPE_DOS 0x02
|
||||
#define PART_TYPE_ISO 0x03
|
||||
#define PART_TYPE_AMIGA 0x04
|
||||
#define PART_TYPE_EFI 0x05
|
||||
|
||||
/*
|
||||
* Type string for U-Boot bootable partitions
|
||||
@ -135,4 +136,11 @@ void print_part_amiga (block_dev_desc_t *dev_desc);
|
||||
int test_part_amiga (block_dev_desc_t *dev_desc);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_EFI_PARTITION
|
||||
/* disk/part_efi.c */
|
||||
int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
|
||||
void print_part_efi (block_dev_desc_t *dev_desc);
|
||||
int test_part_efi (block_dev_desc_t *dev_desc);
|
||||
#endif
|
||||
|
||||
#endif /* _PART_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user