arch/powerpc/include/asm/secvar.h

   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