/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _INTEL_GSC_BINARY_HEADERS_H_
#define _INTEL_GSC_BINARY_HEADERS_H_
#include <linux/types.h>
struct intel_gsc_version {
u16 major;
u16 minor;
u16 hotfix;
u16 build;
} __packed;
struct intel_gsc_partition {
u32 offset;
u32 size;
} __packed;
struct intel_gsc_layout_pointers {
u8 rom_bypass_vector[16 ];
/* size of pointers layout not including ROM bypass vector */
u16 size;
/*
* bit0 : Backup copy of layout pointers exist
* bits1 - 15 : reserved
*/
u8 flags;
u8 reserved;
u32 crc32;
struct intel_gsc_partition datap;
struct intel_gsc_partition boot1;
struct intel_gsc_partition boot2;
struct intel_gsc_partition boot3;
struct intel_gsc_partition boot4;
struct intel_gsc_partition boot5;
struct intel_gsc_partition temp_pages;
} __packed;
/* Boot partition structures */
struct intel_gsc_bpdt_header {
u32 signature;
#define INTEL_GSC_BPDT_HEADER_SIGNATURE 0 x000055AA
u16 descriptor_count; /* num of entries after the header */
u8 version;
u8 configuration;
u32 crc32;
u32 build_version;
struct intel_gsc_version tool_version;
} __packed;
struct intel_gsc_bpdt_entry {
/*
* Bits 0 - 15 : BPDT entry type
* Bits 16 - 17 : reserved
* Bit 18 : code sub - partition
* Bits 19 - 31 : reserved
*/
u32 type;
#define INTEL_GSC_BPDT_ENTRY_TYPE_MASK GENMASK(15 , 0 )
#define INTEL_GSC_BPDT_ENTRY_TYPE_GSC_RBE 0 x1
u32 sub_partition_offset; /* from the base of the BPDT header */
u32 sub_partition_size;
} __packed;
/* Code partition directory (CPD) structures */
struct intel_gsc_cpd_header_v2 {
u32 header_marker;
#define INTEL_GSC_CPD_HEADER_MARKER 0 x44504324
u32 num_of_entries;
u8 header_version;
u8 entry_version;
u8 header_length; /* in bytes */
u8 flags;
u32 partition_name;
u32 crc32;
} __packed;
struct intel_gsc_cpd_entry {
u8 name[12 ];
/*
* Bits 0 - 24 : offset from the beginning of the code partition
* Bit 25 : huffman compressed
* Bits 26 - 31 : reserved
*/
u32 offset;
#define INTEL_GSC_CPD_ENTRY_OFFSET_MASK GENMASK(24 , 0 )
#define INTEL_GSC_CPD_ENTRY_HUFFMAN_COMP BIT(25 )
/*
* Module / Item length , in bytes . For Huffman - compressed modules , this
* refers to the uncompressed size . For software - compressed modules ,
* this refers to the compressed size .
*/
u32 length;
u8 reserved[4 ];
} __packed;
struct intel_gsc_manifest_header {
u32 header_type; /* 0x4 for manifest type */
u32 header_length; /* in dwords */
u32 header_version;
u32 flags;
u32 vendor;
u32 date;
u32 size; /* In dwords, size of entire manifest (header + extensions) */
u32 header_id;
u32 internal_data;
struct intel_gsc_version fw_version;
u32 security_version;
struct intel_gsc_version meu_kit_version;
u32 meu_manifest_version;
u8 general_data[4 ];
u8 reserved3[56 ];
u32 modulus_size; /* in dwords */
u32 exponent_size; /* in dwords */
} __packed;
#endif
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