1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2019 IBM Corporation
4  * Author: Nayna Jain
5  *
6  * This file initializes secvar operations for PowerPC Secureboot
7  */
8 
9 #include <linux/cache.h>
10 #include <asm/secvar.h>
11 #include <asm/bug.h>
12 
13 const struct secvar_operations *secvar_ops __ro_after_init = NULL;
14 
set_secvar_ops(const struct secvar_operations * ops)15 int set_secvar_ops(const struct secvar_operations *ops)
16 {
17 	if (WARN_ON_ONCE(secvar_ops))
18 		return -EBUSY;
19 
20 	secvar_ops = ops;
21 
22 	return 0;
23 }
24