1/* SPDX-License-Identifier: GPL-2.0-only */
2
3/*
4 * Copyright (c) 2021, Microsoft Corporation.
5 * Pasha Tatashin <pasha.tatashin@soleen.com>
6 */
7
8#include <linux/linkage.h>
9#include <asm/assembler.h>
10#include <asm/kvm_asm.h>
11
12.macro invalid_vector	label
13SYM_CODE_START_LOCAL(\label)
14	.align 7
15	b	\label
16SYM_CODE_END(\label)
17.endm
18
19.macro el1_sync_vector
20SYM_CODE_START_LOCAL(el1_sync)
21	.align 7
22	cmp	x0, #HVC_SET_VECTORS	/* Called from hibernate */
23	b.ne	1f
24	msr	vbar_el2, x1
25	mov	x0, xzr
26	eret
271:	cmp	x0, #HVC_SOFT_RESTART	/* Called from kexec */
28	b.ne	2f
29	mov	x0, x2
30	mov	x2, x4
31	mov	x4, x1
32	mov	x1, x3
33	br	x4
342:	/* Unexpected argument, set an error */
35	mov_q	x0, HVC_STUB_ERR
36	eret
37SYM_CODE_END(el1_sync)
38.endm
39
40SYM_CODE_START(trans_pgd_stub_vectors)
41	invalid_vector	hyp_stub_el2t_sync_invalid	// Synchronous EL2t
42	invalid_vector	hyp_stub_el2t_irq_invalid	// IRQ EL2t
43	invalid_vector	hyp_stub_el2t_fiq_invalid	// FIQ EL2t
44	invalid_vector	hyp_stub_el2t_error_invalid	// Error EL2t
45
46	invalid_vector	hyp_stub_el2h_sync_invalid	// Synchronous EL2h
47	invalid_vector	hyp_stub_el2h_irq_invalid	// IRQ EL2h
48	invalid_vector	hyp_stub_el2h_fiq_invalid	// FIQ EL2h
49	invalid_vector	hyp_stub_el2h_error_invalid	// Error EL2h
50
51	el1_sync_vector					// Synchronous 64-bit EL1
52	invalid_vector	hyp_stub_el1_irq_invalid	// IRQ 64-bit EL1
53	invalid_vector	hyp_stub_el1_fiq_invalid	// FIQ 64-bit EL1
54	invalid_vector	hyp_stub_el1_error_invalid	// Error 64-bit EL1
55
56	invalid_vector	hyp_stub_32b_el1_sync_invalid	// Synchronous 32-bit EL1
57	invalid_vector	hyp_stub_32b_el1_irq_invalid	// IRQ 32-bit EL1
58	invalid_vector	hyp_stub_32b_el1_fiq_invalid	// FIQ 32-bit EL1
59	invalid_vector	hyp_stub_32b_el1_error_invalid	// Error 32-bit EL1
60	.align 11
61SYM_INNER_LABEL(__trans_pgd_stub_vectors_end, SYM_L_LOCAL)
62SYM_CODE_END(trans_pgd_stub_vectors)
63
64# Check the trans_pgd_stub_vectors didn't overflow
65.org . - (__trans_pgd_stub_vectors_end - trans_pgd_stub_vectors) + SZ_2K
66