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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#ifndef _SMMSTORE_H_
#define _SMMSTORE_H_
#include <stddef.h>
#include <stdint.h>
#define SMMSTORE_RET_SUCCESS 0
#define SMMSTORE_RET_FAILURE 1
#define SMMSTORE_RET_UNSUPPORTED 2
#define SMMSTORE_CMD_CLEAR 1
#define SMMSTORE_CMD_READ 2
#define SMMSTORE_CMD_APPEND 3
struct smmstore_params_read {
void *buf;
ssize_t bufsize;
};
struct smmstore_params_append {
void *key;
size_t keysize;
void *val;
size_t valsize;
};
/* SMM responder */
uint32_t smmstore_exec(uint8_t command, void *param);
/* implementation */
int smmstore_read_region(void *buf, ssize_t *bufsize);
int smmstore_append_data(void *key, uint32_t key_sz,
void *value, uint32_t value_sz);
int smmstore_clear_region(void);
#endif
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