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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2018 The Chromium OS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _SMMSTORE_H_
#define _SMMSTORE_H_
#include <stddef.h>
#include <stdint.h>
#define SMMSTORE_APM_CNT 0xed
#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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