284 lines
9.7 KiB
C
284 lines
9.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
|
|
/*
|
|
* This is from the Android Project,
|
|
* Repository: https://android.googlesource.com/platform/system/tools/mkbootimg
|
|
* File: include/bootimg/bootimg.h
|
|
* Commit: e55998a0f2b61b685d5eb4a486ca3a0c680b1a2f
|
|
*
|
|
* Copyright (C) 2007 The Android Open Source Project
|
|
*/
|
|
|
|
#ifndef _ANDROID_IMAGE_H_
|
|
#define _ANDROID_IMAGE_H_
|
|
|
|
#define ANDROID_PARTITION_BOOT "boot"
|
|
#define ANDROID_PARTITION_VENDOR_BOOT "vendor_boot"
|
|
#define ANDROID_PARTITION_MISC "misc"
|
|
#define ANDROID_PARTITION_OEM "oem"
|
|
#define ANDROID_PARTITION_RECOVERY "recovery"
|
|
#define ANDROID_PARTITION_SYSTEM "system"
|
|
#define ANDROID_PARTITION_VBMETA "vbmeta"
|
|
#define ANDROID_PARTITION_SUPER "super"
|
|
|
|
#define ANDROID_ARG_SLOT_SUFFIX "androidboot.slot_suffix="
|
|
#define ANDROID_ARG_ROOT "root="
|
|
#define ANDROID_ARG_SERIALNO "androidboot.serialno="
|
|
#define ANDROID_VERIFY_STATE "androidboot.verifiedbootstate="
|
|
#ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE
|
|
#define ANDROID_ARG_FDT_FILENAME "rk-kernel.dtb"
|
|
#else
|
|
#define ANDROID_ARG_FDT_FILENAME "kernel.dtb"
|
|
#endif
|
|
#define OEM_UNLOCK_ARG_SIZE 30
|
|
#define UUID_SIZE 37
|
|
|
|
#define ANDR_BOOT_MAGIC "ANDROID!"
|
|
#define VENDOR_BOOT_MAGIC "VNDRBOOT"
|
|
#define ANDR_BOOT_MAGIC_SIZE 8
|
|
#define VENDOR_BOOT_MAGIC_SIZE 8
|
|
#define ANDR_BOOT_NAME_SIZE 16
|
|
#define VENDOR_BOOT_NAME_SIZE 16
|
|
#define ANDR_BOOT_ARGS_SIZE 512
|
|
#define ANDR_BOOT_EXTRA_ARGS_SIZE 1024
|
|
#define VENDOR_BOOT_ARGS_SIZE 2048
|
|
#define ANDR_BOOT_IMG_PAGE_SIZE 4096
|
|
#define ANDR_BOOT_IMG_HDR_SIZE (ANDR_BOOT_IMG_PAGE_SIZE)
|
|
#define TOTAL_BOOT_ARGS_SIZE (ANDR_BOOT_ARGS_SIZE + ANDR_BOOT_EXTRA_ARGS_SIZE + \
|
|
VENDOR_BOOT_ARGS_SIZE + 1)
|
|
#define VENDOR_BOOT_HDR_SIZE 2112
|
|
|
|
/*
|
|
* It is expected that callers would explicitly specify which version of the
|
|
* boot image header they need to use.
|
|
*/
|
|
typedef struct andr_img_hdr andr_img_hdr;
|
|
|
|
/* The bootloader expects the structure of andr_img_hdr with header
|
|
* version 0 to be as follows: */
|
|
struct andr_img_hdr {
|
|
/* Must be ANDR_BOOT_MAGIC. */
|
|
char magic[ANDR_BOOT_MAGIC_SIZE];
|
|
|
|
u32 kernel_size; /* size in bytes */
|
|
u32 kernel_addr; /* physical load addr */
|
|
|
|
u32 ramdisk_size; /* size in bytes */
|
|
u32 ramdisk_addr; /* physical load addr */
|
|
|
|
u32 second_size; /* size in bytes */
|
|
u32 second_addr; /* physical load addr */
|
|
|
|
u32 tags_addr; /* physical addr for kernel tags */
|
|
u32 page_size; /* flash page size we assume */
|
|
|
|
/* Version of the boot image header. */
|
|
u32 header_version;
|
|
|
|
/* Operating system version and security patch level.
|
|
* For version "A.B.C" and patch level "Y-M-D":
|
|
* (7 bits for each of A, B, C; 7 bits for (Y-2000), 4 bits for M)
|
|
* os_version = A[31:25] B[24:18] C[17:11] (Y-2000)[10:4] M[3:0] */
|
|
u32 os_version;
|
|
|
|
char name[ANDR_BOOT_NAME_SIZE]; /* asciiz product name */
|
|
|
|
char cmdline[ANDR_BOOT_ARGS_SIZE];
|
|
|
|
u32 id[8]; /* timestamp / checksum / sha1 / etc */
|
|
|
|
/* Supplemental command line data; kept here to maintain
|
|
* binary compatibility with older versions of mkbootimg. */
|
|
char extra_cmdline[ANDR_BOOT_EXTRA_ARGS_SIZE];
|
|
|
|
/* Fields in boot_img_hdr_v1(Android-9) and newer. */
|
|
u32 recovery_dtbo_size; /* size in bytes for recovery DTBO/ACPIO image */
|
|
u64 recovery_dtbo_offset; /* offset to recovery dtbo/acpio in boot image */
|
|
u32 header_size;
|
|
|
|
/* Fields in boot_img_hdr_v2(Android-10) and newer. */
|
|
u32 dtb_size; /* size in bytes for DTB image */
|
|
u64 dtb_addr; /* physical load address for DTB image */
|
|
|
|
/*
|
|
* [Rockchip compatibility]
|
|
*
|
|
* boot_img_hdr_v3(Android-11) is not compatible with boot_img_hdr_v012,
|
|
* we have to partly merge fields from boot_img_hdr_v3 and vendor_boot_img_hdr_v3
|
|
* into this structure to compatible with boot_img_hdr_v012.
|
|
*/
|
|
u32 boot_ramdisk_size; /* size in bytes */
|
|
u32 vendor_ramdisk_size; /* size in bytes */
|
|
u32 vendor_page_size;
|
|
u32 vendor_header_version;
|
|
u32 vendor_header_size;
|
|
/*
|
|
* Don't define 'char total_cmdline[TOTAL_BOOT_ARGS_SIZE]' to avoid
|
|
* this structrue is over size than page_size.
|
|
*/
|
|
char *total_cmdline;
|
|
} __attribute__((packed));
|
|
|
|
struct boot_img_hdr_v3 {
|
|
/* Must be ANDR_BOOT_MAGIC. */
|
|
uint8_t magic[ANDR_BOOT_MAGIC_SIZE];
|
|
|
|
uint32_t kernel_size; /* size in bytes */
|
|
uint32_t ramdisk_size; /* size in bytes */
|
|
|
|
/* Operating system version and security patch level.
|
|
* For version "A.B.C" and patch level "Y-M-D":
|
|
* (7 bits for each of A, B, C; 7 bits for (Y-2000), 4 bits for M)
|
|
* os_version = A[31:25] B[24:18] C[17:11] (Y-2000)[10:4] M[3:0] */
|
|
uint32_t os_version;
|
|
|
|
uint32_t header_size;
|
|
|
|
uint32_t reserved[4];
|
|
|
|
uint32_t header_version;
|
|
|
|
uint8_t cmdline[ANDR_BOOT_ARGS_SIZE + ANDR_BOOT_EXTRA_ARGS_SIZE];
|
|
} __attribute__((packed));
|
|
|
|
struct vendor_boot_img_hdr_v3 {
|
|
/* Must be VENDOR_BOOT_MAGIC. */
|
|
uint8_t magic[VENDOR_BOOT_MAGIC_SIZE];
|
|
|
|
/* Version of the vendor boot image header. */
|
|
uint32_t header_version;
|
|
|
|
uint32_t page_size; /* flash page size we assume */
|
|
|
|
uint32_t kernel_addr; /* physical load addr */
|
|
uint32_t ramdisk_addr; /* physical load addr */
|
|
|
|
uint32_t vendor_ramdisk_size; /* size in bytes */
|
|
|
|
uint8_t cmdline[VENDOR_BOOT_ARGS_SIZE];
|
|
|
|
uint32_t tags_addr; /* physical addr for kernel tags (if required) */
|
|
uint8_t name[VENDOR_BOOT_NAME_SIZE]; /* asciiz product name */
|
|
|
|
uint32_t header_size;
|
|
|
|
uint32_t dtb_size; /* size in bytes for DTB image */
|
|
uint64_t dtb_addr; /* physical load address for DTB image */
|
|
} __attribute__((packed));
|
|
|
|
/* When a boot header is of version 0, the structure of boot image is as
|
|
* follows:
|
|
*
|
|
* +-----------------+
|
|
* | boot header | 1 page
|
|
* +-----------------+
|
|
* | kernel | n pages
|
|
* +-----------------+
|
|
* | ramdisk | m pages
|
|
* +-----------------+
|
|
* | second stage | o pages
|
|
* +-----------------+
|
|
*
|
|
* n = (kernel_size + page_size - 1) / page_size
|
|
* m = (ramdisk_size + page_size - 1) / page_size
|
|
* o = (second_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities are page_size aligned in flash
|
|
* 1. kernel and ramdisk are required (size != 0)
|
|
* 2. second is optional (second_size == 0 -> no second)
|
|
* 3. load each element (kernel, ramdisk, second) at
|
|
* the specified physical address (kernel_addr, etc)
|
|
* 4. prepare tags at tag_addr. kernel_args[] is
|
|
* appended to the kernel commandline in the tags.
|
|
* 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
|
|
* 6. if second_size != 0: jump to second_addr
|
|
* else: jump to kernel_addr
|
|
*/
|
|
|
|
/* When the boot image header has a version of 2, the structure of the boot
|
|
* image is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | boot header | 1 page
|
|
* +---------------------+
|
|
* | kernel | n pages
|
|
* +---------------------+
|
|
* | ramdisk | m pages
|
|
* +---------------------+
|
|
* | second stage | o pages
|
|
* +---------------------+
|
|
* | recovery dtbo/acpio | p pages
|
|
* +---------------------+
|
|
* | dtb | q pages
|
|
* +---------------------+
|
|
|
|
* n = (kernel_size + page_size - 1) / page_size
|
|
* m = (ramdisk_size + page_size - 1) / page_size
|
|
* o = (second_size + page_size - 1) / page_size
|
|
* p = (recovery_dtbo_size + page_size - 1) / page_size
|
|
* q = (dtb_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities are page_size aligned in flash
|
|
* 1. kernel, ramdisk and DTB are required (size != 0)
|
|
* 2. recovery_dtbo/recovery_acpio is required for recovery.img in non-A/B
|
|
* devices(recovery_dtbo_size != 0)
|
|
* 3. second is optional (second_size == 0 -> no second)
|
|
* 4. load each element (kernel, ramdisk, second, dtb) at
|
|
* the specified physical address (kernel_addr, etc)
|
|
* 5. If booting to recovery mode in a non-A/B device, extract recovery
|
|
* dtbo/acpio and apply the correct set of overlays on the base device tree
|
|
* depending on the hardware/product revision.
|
|
* 6. prepare tags at tag_addr. kernel_args[] is
|
|
* appended to the kernel commandline in the tags.
|
|
* 7. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
|
|
* 8. if second_size != 0: jump to second_addr
|
|
* else: jump to kernel_addr
|
|
*/
|
|
|
|
/* When the boot image header has a version of 3, the structure of the boot
|
|
* image is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | boot header | 4096 bytes
|
|
* +---------------------+
|
|
* | kernel | m pages
|
|
* +---------------------+
|
|
* | ramdisk | n pages
|
|
* +---------------------+
|
|
*
|
|
* m = (kernel_size + 4096 - 1) / 4096
|
|
* n = (ramdisk_size + 4096 - 1) / 4096
|
|
*
|
|
* Note that in version 3 of the boot image header, page size is fixed at 4096 bytes.
|
|
*
|
|
* The structure of the vendor boot image (introduced with version 3 and
|
|
* required to be present when a v3 boot image is used) is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | vendor boot header | o pages
|
|
* +---------------------+
|
|
* | vendor ramdisk | p pages
|
|
* +---------------------+
|
|
* | dtb | q pages
|
|
* +---------------------+
|
|
*
|
|
* o = (2112 + page_size - 1) / page_size
|
|
* p = (vendor_ramdisk_size + page_size - 1) / page_size
|
|
* q = (dtb_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities in the boot image are 4096-byte aligned in flash, all
|
|
* entities in the vendor boot image are page_size (determined by the vendor
|
|
* and specified in the vendor boot image header) aligned in flash
|
|
* 1. kernel, ramdisk, vendor ramdisk, and DTB are required (size != 0)
|
|
* 2. load the kernel and DTB at the specified physical address (kernel_addr,
|
|
* dtb_addr)
|
|
* 3. load the vendor ramdisk at ramdisk_addr
|
|
* 4. load the generic ramdisk immediately following the vendor ramdisk in
|
|
* memory
|
|
* 5. set up registers for kernel entry as required by your architecture
|
|
* 6. if the platform has a second stage bootloader jump to it (must be
|
|
* contained outside boot and vendor boot partitions), otherwise
|
|
* jump to kernel_addr
|
|
*/
|
|
|
|
#endif
|