diff options
Diffstat (limited to 'firmware/lib20/include/vb2_struct.h')
| -rw-r--r-- | firmware/lib20/include/vb2_struct.h | 88 |
1 files changed, 85 insertions, 3 deletions
diff --git a/firmware/lib20/include/vb2_struct.h b/firmware/lib20/include/vb2_struct.h index ec28e719..d3e2f400 100644 --- a/firmware/lib20/include/vb2_struct.h +++ b/firmware/lib20/include/vb2_struct.h @@ -81,8 +81,6 @@ struct vb2_keyblock { /* Version of this header format */ uint32_t header_version_major; - - /* Version of this header format */ uint32_t header_version_minor; /* @@ -121,7 +119,7 @@ struct vb2_keyblock { #define FIRMWARE_PREAMBLE_HEADER_VERSION_MAJOR 2 #define FIRMWARE_PREAMBLE_HEADER_VERSION_MINOR 1 -/* Flags for VbFirmwarePreambleHeader.flags */ +/* Flags for vb2_fw_preamble.flags */ /* Reserved; do not use */ #define VB2_FIRMWARE_PREAMBLE_RESERVED0 0x00000001 /* Do not allow use of any hardware crypto accelerators. */ @@ -178,4 +176,88 @@ struct vb2_fw_preamble { #define EXPECTED_VB2_FW_PREAMBLE_SIZE 108 +/* Kernel preamble header */ +#define KERNEL_PREAMBLE_HEADER_VERSION_MAJOR 2 +#define KERNEL_PREAMBLE_HEADER_VERSION_MINOR 2 + +/* Flags for vb2_kernel_preamble.flags */ +/* Kernel image type = bits 1:0 */ +#define VB2_KERNEL_PREAMBLE_KERNEL_TYPE_MASK 0x00000003 +#define VB2_KERNEL_PREAMBLE_KERNEL_TYPE_CROS 0 +#define VB2_KERNEL_PREAMBLE_KERNEL_TYPE_BOOTIMG 1 +/* Kernel types 2,3 are reserved for future use */ + +/* + * Preamble block for kernel, version 2.2 + * + * This should be followed by: + * 1) The signature data for the kernel body, pointed to by + * body_signature.sig_offset. + * 2) The signature data for (vb2_kernel_preamble + body signature data), + * pointed to by preamble_signature.sig_offset. + * 3) The 16-bit vmlinuz header, which is used for reconstruction of + * vmlinuz image. + */ +struct vb2_kernel_preamble { + /* + * Size of this preamble, including keys, signatures, vmlinuz header, + * and padding, in bytes + */ + uint32_t preamble_size; + uint32_t reserved0; + + /* Signature for this preamble (header + body signature) */ + struct vb2_signature preamble_signature; + + /* Version of this header format */ + uint32_t header_version_major; + uint32_t header_version_minor; + + /* Kernel version */ + uint32_t kernel_version; + uint32_t reserved1; + + /* Load address for kernel body */ + uint64_t body_load_address; + + /* Address of bootloader, after body is loaded at body_load_address */ + uint64_t bootloader_address; + + /* Size of bootloader in bytes */ + uint32_t bootloader_size; + uint32_t reserved2; + + /* Signature for the kernel body */ + struct vb2_signature body_signature; + + /* + * Fields added in header version 2.1. You must verify the header + * version before reading these fields! + */ + + /* + * Address of 16-bit header for vmlinuz reassembly. Readers should + * return 0 for header version < 2.1. + */ + uint64_t vmlinuz_header_address; + + /* Size of 16-bit header for vmlinuz in bytes. Readers should return 0 + for header version < 2.1 */ + uint32_t vmlinuz_header_size; + uint32_t reserved3; + + /* + * Fields added in header version 2.2. You must verify the header + * version before reading these fields! + */ + + /* + * Flags; see VB2_KERNEL_PREAMBLE_*. Readers should return 0 for + * header version < 2.2. + */ + uint32_t flags; +} __attribute__((packed)); + +#define EXPECTED_VB2_KERNEL_PREAMBLE_SIZE 116 + #endif /* VBOOT_REFERENCE_VB2_STRUCT_H_ */ |