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https://github.com/AsahiLinux/u-boot
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000806f76b
Current mkeficapsule tool does not provide firmware version management. EDK II reference implementation inserts the FMP Payload Header right before the payload. It coutains the fw_version and lowest supported version. This commit adds a new parameters required to generate the FMP Payload Header for mkeficapsule tool. '-v' indicates the firmware version. When mkeficapsule tool is invoked without '-v' option, FMP Payload Header is not inserted, the behavior is same as current implementation. The lowest supported version included in the FMP Payload Header is not used, the value stored in the device tree is used instead. Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
146 lines
3.7 KiB
C
146 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2021 Linaro Limited
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* Author: AKASHI Takahiro
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*
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* derived from efi.h and efi_api.h to make the file POSIX-compliant
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*/
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#ifndef _EFI_CAPSULE_H
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#define _EFI_CAPSULE_H
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#include <stdint.h>
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/*
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* Gcc's predefined attributes are not recognized by clang.
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*/
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#ifndef __packed
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#define __packed __attribute__((__packed__))
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#endif
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#ifndef __aligned
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#define __aligned(x) __attribute__((__aligned__(x)))
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#endif
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typedef struct {
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uint8_t b[16];
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} efi_guid_t __aligned(8);
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#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
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{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
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((a) >> 24) & 0xff, \
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(b) & 0xff, ((b) >> 8) & 0xff, \
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(c) & 0xff, ((c) >> 8) & 0xff, \
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(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } }
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#define EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID \
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EFI_GUID(0x6dcbd5ed, 0xe82d, 0x4c44, 0xbd, 0xa1, \
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0x71, 0x94, 0x19, 0x9a, 0xd9, 0x2a)
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#define EFI_CERT_TYPE_PKCS7_GUID \
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EFI_GUID(0x4aafd29d, 0x68df, 0x49ee, 0x8a, 0xa9, \
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0x34, 0x7d, 0x37, 0x56, 0x65, 0xa7)
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#define FW_ACCEPT_OS_GUID \
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EFI_GUID(0x0c996046, 0xbcc0, 0x4d04, 0x85, 0xec, \
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0xe1, 0xfc, 0xed, 0xf1, 0xc6, 0xf8)
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#define FW_REVERT_OS_GUID \
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EFI_GUID(0xacd58b4b, 0xc0e8, 0x475f, 0x99, 0xb5, \
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0x6b, 0x3f, 0x7e, 0x07, 0xaa, 0xf0)
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/* flags */
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#define CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000
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struct efi_capsule_header {
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efi_guid_t capsule_guid;
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uint32_t header_size;
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uint32_t flags;
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uint32_t capsule_image_size;
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} __packed;
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struct efi_firmware_management_capsule_header {
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uint32_t version;
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uint16_t embedded_driver_count;
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uint16_t payload_item_count;
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uint32_t item_offset_list[];
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} __packed;
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/* image_capsule_support */
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#define CAPSULE_SUPPORT_AUTHENTICATION 0x0000000000000001
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struct efi_firmware_management_capsule_image_header {
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uint32_t version;
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efi_guid_t update_image_type_id;
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uint8_t update_image_index;
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uint8_t reserved[3];
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uint32_t update_image_size;
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uint32_t update_vendor_code_size;
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uint64_t update_hardware_instance;
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uint64_t image_capsule_support;
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} __packed;
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/**
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* win_certificate_uefi_guid - A certificate that encapsulates
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* a GUID-specific signature
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*
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* @hdr: Windows certificate header, cf. WIN_CERTIFICATE
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* @cert_type: Certificate type
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*/
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struct win_certificate_uefi_guid {
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struct {
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uint32_t dwLength;
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uint16_t wRevision;
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uint16_t wCertificateType;
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} hdr;
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efi_guid_t cert_type;
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} __packed;
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/**
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* efi_firmware_image_authentication - Capsule authentication method
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* descriptor
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*
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* This structure describes an authentication information for
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* a capsule with IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED set
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* and should be included as part of the capsule.
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* Only EFI_CERT_TYPE_PKCS7_GUID is accepted.
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*
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* @monotonic_count: Count to prevent replay
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* @auth_info: Authentication info
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*/
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struct efi_firmware_image_authentication {
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uint64_t monotonic_count;
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struct win_certificate_uefi_guid auth_info;
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} __packed;
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/* fmp payload header */
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#define SIGNATURE_16(A, B) ((A) | ((B) << 8))
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#define SIGNATURE_32(A, B, C, D) \
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(SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16))
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#define FMP_PAYLOAD_HDR_SIGNATURE SIGNATURE_32('M', 'S', 'S', '1')
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/**
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* struct fmp_payload_header - EDK2 header for the FMP payload
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*
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* This structure describes the header which is preprended to the
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* FMP payload by the edk2 capsule generation scripts.
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*
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* @signature: Header signature used to identify the header
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* @header_size: Size of the structure
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* @fw_version: Firmware versions used
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* @lowest_supported_version: Lowest supported version (not used)
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*/
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struct fmp_payload_header {
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uint32_t signature;
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uint32_t header_size;
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uint32_t fw_version;
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uint32_t lowest_supported_version;
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};
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struct fmp_payload_header_params {
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bool have_header;
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uint32_t fw_version;
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};
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#endif /* _EFI_CAPSULE_H */
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