2019-03-06 13:24:55 +08:00
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/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef SEED_H_
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#define SEED_H_
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2019-03-15 10:21:21 +08:00
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#define BOOTLOADER_SEED_MAX_ENTRIES 10U
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#define BUP_MKHI_BOOTLOADER_SEED_LEN 64U
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/* Structure of seed info */
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struct seed_info {
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uint8_t cse_svn;
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uint8_t bios_svn;
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uint8_t padding[2];
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uint8_t seed[BUP_MKHI_BOOTLOADER_SEED_LEN];
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};
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/* Structure of physical seed */
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2019-03-06 13:24:55 +08:00
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struct physical_seed {
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struct seed_info seed_list[BOOTLOADER_SEED_MAX_ENTRIES];
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uint32_t num_seeds;
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uint32_t pad;
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};
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void init_seed(void);
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void append_seed_arg(char *cmd_dst, bool vm_is_sos);
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bool derive_virtual_seed(struct seed_info *seed_list, uint32_t *num_seeds,
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const uint8_t *salt, size_t salt_len, const uint8_t *info, size_t info_len);
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bool derive_attkb_enc_key(uint8_t *out_key);
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#endif /* SEED_H_ */
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