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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 IBM Corporation
* Author: Nayna Jain
*
* PowerPC secure variable operations.
*/
#ifndef SECVAR_OPS_H
#define SECVAR_OPS_H
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/sysfs.h>
extern const struct secvar_operations *secvar_ops;
struct secvar_operations {
int (*get)(const char *key, u64 key_len, u8 *data, u64 *data_size);
int (*get_next)(const char *key, u64 *key_len, u64 keybufsize);
int (*set)(const char *key, u64 key_len, u8 *data, u64 data_size);
ssize_t (*format)(char *buf, size_t bufsize);
int (*max_size)(u64 *max_size);
const struct attribute **config_attrs;
// NULL-terminated array of fixed variable names
// Only used if get_next() isn't provided
const char * const *var_names;
};
#ifdef CONFIG_PPC_SECURE_BOOT
int set_secvar_ops(const struct secvar_operations *ops);
#else
static inline int set_secvar_ops(const struct secvar_operations *ops) { return 0; }
#endif
#endif