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 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