1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2019 IBM Corporation 4*4882a593Smuzhiyun * Author: Nayna Jain 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * PowerPC secure variable operations. 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #ifndef SECVAR_OPS_H 9*4882a593Smuzhiyun #define SECVAR_OPS_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/types.h> 12*4882a593Smuzhiyun #include <linux/errno.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun extern const struct secvar_operations *secvar_ops; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct secvar_operations { 17*4882a593Smuzhiyun int (*get)(const char *key, uint64_t key_len, u8 *data, 18*4882a593Smuzhiyun uint64_t *data_size); 19*4882a593Smuzhiyun int (*get_next)(const char *key, uint64_t *key_len, 20*4882a593Smuzhiyun uint64_t keybufsize); 21*4882a593Smuzhiyun int (*set)(const char *key, uint64_t key_len, u8 *data, 22*4882a593Smuzhiyun uint64_t data_size); 23*4882a593Smuzhiyun }; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #ifdef CONFIG_PPC_SECURE_BOOT 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun extern void set_secvar_ops(const struct secvar_operations *ops); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #else 30*4882a593Smuzhiyun set_secvar_ops(const struct secvar_operations * ops)31*4882a593Smuzhiyunstatic inline void set_secvar_ops(const struct secvar_operations *ops) { } 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #endif 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #endif 36