| 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 |