acrn-hypervisor/hypervisor/include/arch/x86/asm/seed.h

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/*
* Copyright (C) 2019 Intel Corporation.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SEED_H_
#define SEED_H_
#define BOOTLOADER_SEED_MAX_ENTRIES 10U
#define BUP_MKHI_BOOTLOADER_SEED_LEN 64U
#define MAX_SEED_ARG_SIZE 1024U
/* Structure of seed info */
struct seed_info {
uint8_t cse_svn;
uint8_t bios_svn;
uint8_t padding[2];
uint8_t seed[BUP_MKHI_BOOTLOADER_SEED_LEN];
};
/* Structure of physical seed */
struct physical_seed {
struct seed_info seed_list[BOOTLOADER_SEED_MAX_ENTRIES];
uint32_t num_seeds;
uint32_t pad;
};
void init_seed(void);
void fill_seed_arg(char *cmd_dst, size_t cmd_sz);
bool derive_virtual_seed(struct seed_info *seed_list, uint32_t *num_seeds,
const uint8_t *salt, size_t salt_len, const uint8_t *info, size_t info_len);
bool derive_attkb_enc_key(uint8_t *out_key);
#endif /* SEED_H_ */