1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2020 Google LLC.
4 * Written by David Brazdil <dbrazdil@google.com>
5 */
6
7#ifndef __ARM64_HYP_IMAGE_H__
8#define __ARM64_HYP_IMAGE_H__
9
10/*
11 * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_,
12 * to separate it from the kernel proper.
13 */
14#define kvm_nvhe_sym(sym)	__kvm_nvhe_##sym
15
16#ifdef LINKER_SCRIPT
17
18/*
19 * KVM nVHE ELF section names are prefixed with .hyp, to separate them
20 * from the kernel proper.
21 */
22#define HYP_SECTION_NAME(NAME)	.hyp##NAME
23
24/* Defines an ELF hyp section from input section @NAME and its subsections. */
25#define HYP_SECTION(NAME) \
26	HYP_SECTION_NAME(NAME) : { *(NAME NAME##.*) }
27
28/*
29 * Defines a linker script alias of a kernel-proper symbol referenced by
30 * KVM nVHE hyp code.
31 */
32#define KVM_NVHE_ALIAS(sym)	kvm_nvhe_sym(sym) = sym;
33
34/* Defines a linker script alias for KVM nVHE hyp symbols */
35#define KVM_NVHE_ALIAS_HYP(first, sec)	kvm_nvhe_sym(first) = kvm_nvhe_sym(sec);
36
37#endif /* LINKER_SCRIPT */
38
39#endif /* __ARM64_HYP_IMAGE_H__ */
40