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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /include/drivers/partition | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-upstream/2.8.0+dfsg.tar.xz arm-trusted-firmware-upstream/2.8.0+dfsg.zip |
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/drivers/partition/efi.h | 37 | ||||
-rw-r--r-- | include/drivers/partition/gpt.h | 52 | ||||
-rw-r--r-- | include/drivers/partition/mbr.h | 29 | ||||
-rw-r--r-- | include/drivers/partition/partition.h | 54 |
4 files changed, 172 insertions, 0 deletions
diff --git a/include/drivers/partition/efi.h b/include/drivers/partition/efi.h new file mode 100644 index 0000000..e463f96 --- /dev/null +++ b/include/drivers/partition/efi.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2021, Linaro Limited + * + * SPDX-License-Identifier: BSD-3-Clause + * + */ + +#ifndef DRIVERS_PARTITION_EFI_H +#define DRIVERS_PARTITION_EFI_H + +#include <string.h> + +#include <tools_share/uuid.h> + +#define EFI_NAMELEN 36 + +static inline int guidcmp(const void *g1, const void *g2) +{ + return memcmp(g1, g2, sizeof(struct efi_guid)); +} + +static inline void *guidcpy(void *dst, const void *src) +{ + return memcpy(dst, src, sizeof(struct efi_guid)); +} + +#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ + { (a) & 0xffffffff, \ + (b) & 0xffff, \ + (c) & 0xffff, \ + { (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } } + +#define NULL_GUID \ + EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) + +#endif /* DRIVERS_PARTITION_EFI_H */ diff --git a/include/drivers/partition/gpt.h b/include/drivers/partition/gpt.h new file mode 100644 index 0000000..c2a229e --- /dev/null +++ b/include/drivers/partition/gpt.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef GPT_H +#define GPT_H + +#include <drivers/partition/efi.h> +#include <drivers/partition/partition.h> +#include <tools_share/uuid.h> + +#define PARTITION_TYPE_GPT 0xee +#define GPT_HEADER_OFFSET PLAT_PARTITION_BLOCK_SIZE +#define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \ + PLAT_PARTITION_BLOCK_SIZE) + +#define GPT_SIGNATURE "EFI PART" + +typedef struct gpt_entry { + struct efi_guid type_uuid; + struct efi_guid unique_uuid; + unsigned long long first_lba; + unsigned long long last_lba; + unsigned long long attr; + unsigned short name[EFI_NAMELEN]; +} gpt_entry_t; + +typedef struct gpt_header { + unsigned char signature[8]; + unsigned int revision; + unsigned int size; + unsigned int header_crc; + unsigned int reserved; + unsigned long long current_lba; + unsigned long long backup_lba; + unsigned long long first_lba; + unsigned long long last_lba; + struct efi_guid disk_uuid; + /* starting LBA of array of partition entries */ + unsigned long long part_lba; + /* number of partition entries in array */ + unsigned int list_num; + /* size of a single partition entry (usually 128) */ + unsigned int part_size; + unsigned int part_crc; +} gpt_header_t; + +int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry); + +#endif /* GPT_H */ diff --git a/include/drivers/partition/mbr.h b/include/drivers/partition/mbr.h new file mode 100644 index 0000000..1452c02 --- /dev/null +++ b/include/drivers/partition/mbr.h @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MBR_H +#define MBR_H + +#define MBR_OFFSET 0 + +#define MBR_PRIMARY_ENTRY_OFFSET 0x1be +#define MBR_PRIMARY_ENTRY_SIZE 0x10 +#define MBR_PRIMARY_ENTRY_NUMBER 4 +#define MBR_CHS_ADDRESS_LEN 3 + +#define MBR_SIGNATURE_FIRST 0x55 +#define MBR_SIGNATURE_SECOND 0xAA + +typedef struct mbr_entry { + unsigned char status; + unsigned char first_sector[MBR_CHS_ADDRESS_LEN]; + unsigned char type; + unsigned char last_sector[MBR_CHS_ADDRESS_LEN]; + unsigned int first_lba; + unsigned int sector_nums; +} mbr_entry_t; + +#endif /* MBR_H */ diff --git a/include/drivers/partition/partition.h b/include/drivers/partition/partition.h new file mode 100644 index 0000000..6cb59c3 --- /dev/null +++ b/include/drivers/partition/partition.h @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef PARTITION_H +#define PARTITION_H + +#include <stdint.h> + +#include <lib/cassert.h> +#include <drivers/partition/efi.h> +#include <tools_share/uuid.h> + +#if !PLAT_PARTITION_MAX_ENTRIES +# define PLAT_PARTITION_MAX_ENTRIES 128 +#endif /* PLAT_PARTITION_MAX_ENTRIES */ + +CASSERT(PLAT_PARTITION_MAX_ENTRIES <= 128, assert_plat_partition_max_entries); + +#if !PLAT_PARTITION_BLOCK_SIZE +# define PLAT_PARTITION_BLOCK_SIZE 512 +#endif /* PLAT_PARTITION_BLOCK_SIZE */ + +CASSERT((PLAT_PARTITION_BLOCK_SIZE == 512) || + (PLAT_PARTITION_BLOCK_SIZE == 4096), + assert_plat_partition_block_size); + +#define LEGACY_PARTITION_BLOCK_SIZE 512 + +#define DEFAULT_GPT_HEADER_SIZE 92 + +typedef struct partition_entry { + uint64_t start; + uint64_t length; + char name[EFI_NAMELEN]; + struct efi_guid part_guid; + struct efi_guid type_guid; +} partition_entry_t; + +typedef struct partition_entry_list { + partition_entry_t list[PLAT_PARTITION_MAX_ENTRIES]; + int entry_count; +} partition_entry_list_t; + +int load_partition_table(unsigned int image_id); +const partition_entry_t *get_partition_entry(const char *name); +const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_guid); +const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid); +const partition_entry_list_t *get_partition_entry_list(void); +void partition_init(unsigned int image_id); + +#endif /* PARTITION_H */ |