LXR linux/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
  14extern const struct secvar_operations *secvar_ops;
  15
  16struct 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
  27extern void set_secvar_ops(const struct secvar_operations *ops);
  28
  29#else
  30
  31static inline void set_secvar_ops(const struct secvar_operations *ops) { }
  32
  33#endif
  34
  35#endif
  36