1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Confidential Computing Platform Capability checks
4  *
5  * Copyright (C) 2021 Advanced Micro Devices, Inc.
6  *
7  * Author: Tom Lendacky <thomas.lendacky@amd.com>
8  */
9 
10 #include <linux/export.h>
11 #include <linux/cc_platform.h>
12 
13 #include <asm/machdep.h>
14 #include <asm/svm.h>
15 
cc_platform_has(enum cc_attr attr)16 bool cc_platform_has(enum cc_attr attr)
17 {
18 	switch (attr) {
19 	case CC_ATTR_MEM_ENCRYPT:
20 		return is_secure_guest();
21 
22 	default:
23 		return false;
24 	}
25 }
26 EXPORT_SYMBOL_GPL(cc_platform_has);
27