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
16bool 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}
26EXPORT_SYMBOL_GPL(cc_platform_has);