1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright 2021 Linaro Limited
4 * Author: AKASHI Takahiro
6 * derived from efi.h and efi_api.h to make the file POSIX-compliant
10 #define _EFI_CAPSULE_H
15 * Gcc's predefined attributes are not recognized by clang.
18 #define __packed __attribute__((__packed__))
22 #define __aligned(x) __attribute__((__aligned__(x)))
25 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
29 } efi_guid_t __aligned(8);
31 #define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
32 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
34 (b) & 0xff, ((b) >> 8) & 0xff, \
35 (c) & 0xff, ((c) >> 8) & 0xff, \
36 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } }
38 #define EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID \
39 EFI_GUID(0x6dcbd5ed, 0xe82d, 0x4c44, 0xbd, 0xa1, \
40 0x71, 0x94, 0x19, 0x9a, 0xd9, 0x2a)
42 #define EFI_CERT_TYPE_PKCS7_GUID \
43 EFI_GUID(0x4aafd29d, 0x68df, 0x49ee, 0x8a, 0xa9, \
44 0x34, 0x7d, 0x37, 0x56, 0x65, 0xa7)
46 #define FW_ACCEPT_OS_GUID \
47 EFI_GUID(0x0c996046, 0xbcc0, 0x4d04, 0x85, 0xec, \
48 0xe1, 0xfc, 0xed, 0xf1, 0xc6, 0xf8)
50 #define FW_REVERT_OS_GUID \
51 EFI_GUID(0xacd58b4b, 0xc0e8, 0x475f, 0x99, 0xb5, \
52 0x6b, 0x3f, 0x7e, 0x07, 0xaa, 0xf0)
55 #define CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000
57 struct efi_capsule_header {
58 efi_guid_t capsule_guid;
61 uint32_t capsule_image_size;
64 struct efi_firmware_management_capsule_header {
66 uint16_t embedded_driver_count;
67 uint16_t payload_item_count;
68 uint64_t item_offset_list[];
71 /* image_capsule_support */
72 #define CAPSULE_SUPPORT_AUTHENTICATION 0x0000000000000001
74 struct efi_firmware_management_capsule_image_header {
76 efi_guid_t update_image_type_id;
77 uint8_t update_image_index;
79 uint32_t update_image_size;
80 uint32_t update_vendor_code_size;
81 uint64_t update_hardware_instance;
82 uint64_t image_capsule_support;
86 * win_certificate_uefi_guid - A certificate that encapsulates
87 * a GUID-specific signature
89 * @hdr: Windows certificate header, cf. WIN_CERTIFICATE
90 * @cert_type: Certificate type
92 struct win_certificate_uefi_guid {
96 uint16_t wCertificateType;
102 * efi_firmware_image_authentication - Capsule authentication method
105 * This structure describes an authentication information for
106 * a capsule with IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED set
107 * and should be included as part of the capsule.
108 * Only EFI_CERT_TYPE_PKCS7_GUID is accepted.
110 * @monotonic_count: Count to prevent replay
111 * @auth_info: Authentication info
113 struct efi_firmware_image_authentication {
114 uint64_t monotonic_count;
115 struct win_certificate_uefi_guid auth_info;
118 /* fmp payload header */
119 #define SIGNATURE_16(A, B) ((A) | ((B) << 8))
120 #define SIGNATURE_32(A, B, C, D) \
121 (SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16))
123 #define FMP_PAYLOAD_HDR_SIGNATURE SIGNATURE_32('M', 'S', 'S', '1')
126 * struct fmp_payload_header - EDK2 header for the FMP payload
128 * This structure describes the header which is preprended to the
129 * FMP payload by the edk2 capsule generation scripts.
131 * @signature: Header signature used to identify the header
132 * @header_size: Size of the structure
133 * @fw_version: Firmware versions used
134 * @lowest_supported_version: Lowest supported version (not used)
136 struct fmp_payload_header {
138 uint32_t header_size;
140 uint32_t lowest_supported_version;
143 struct fmp_payload_header_params {
148 #endif /* _EFI_CAPSULE_H */