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1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2019 IBM Corporation
4  * Author: Nayna Jain
5  *
6  * PowerPC secure variable operations.
7  */
8 #ifndef SECVAR_OPS_H
9 #define SECVAR_OPS_H
10
11 #include <linux/types.h>
12 #include <linux/errno.h>
13
14 extern const struct secvar_operations *secvar_ops;
15
16 struct secvar_operations {
17         int (*get)(const char *key, uint64_t key_len, u8 *data,
18                    uint64_t *data_size);
19         int (*get_next)(const char *key, uint64_t *key_len,
20                         uint64_t keybufsize);
21         int (*set)(const char *key, uint64_t key_len, u8 *data,
22                    uint64_t data_size);
23 };
24
25 #ifdef CONFIG_PPC_SECURE_BOOT
26
27 extern void set_secvar_ops(const struct secvar_operations *ops);
28
29 #else
30
31 static inline void set_secvar_ops(const struct secvar_operations *ops) { }
32
33 #endif
34
35 #endif
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