1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2013 - 2017 Linaro, Ltd.
4 * Copyright (C) 2013, 2014 Red Hat, Inc.
5 */
6
7 #include <linux/pe.h>
8 #include <linux/sizes.h>
9
10 .macro efi_signature_nop
11 #ifdef CONFIG_EFI
12 .L_head:
13 /*
14 * This ccmp instruction has no meanin
15 * its opcode forms the magic "MZ" sig
16 */
17 ccmp x18, #0, #0xd, pl
18 #else
19 /*
20 * Bootloaders may inspect the opcode
21 * image to decide if the kernel is ca
22 * So put an ordinary NOP here, not th
23 */
24 nop
25 #endif
26 .endm
27
28 .macro __EFI_PE_HEADER
29 #ifdef CONFIG_EFI
30 .set .Lpe_header_offset, . - .L_hea
31 .long PE_MAGIC
32 .short IMAGE_FILE_MACHINE_ARM64
33 .short .Lsection_count
34 .long 0
35 .long 0
36 .long 0
37 .short .Lsection_table - .Loptional_h
38 .short IMAGE_FILE_DEBUG_STRIPPED | \
39 IMAGE_FILE_EXECUTABLE_IMAGE |
40 IMAGE_FILE_LINE_NUMS_STRIPPED
41
42 .Loptional_header:
43 .short PE_OPT_MAGIC_PE32PLUS
44 .byte 0x02
45 .byte 0x14
46 .long __initdata_begin - .Lefi_heade
47 .long __pecoff_data_size
48 .long 0
49 .long __efistub_efi_pe_entry - .L_he
50 .long .Lefi_header_end - .L_head
51
52 .quad 0
53 .long SEGMENT_ALIGN
54 .long PECOFF_FILE_ALIGNMENT
55 .short 0
56 .short 0
57 .short LINUX_EFISTUB_MAJOR_VERSION
58 .short LINUX_EFISTUB_MINOR_VERSION
59 .short 0
60 .short 0
61 .long 0
62
63 .long _end - .L_head
64
65 // Everything before the kernel image
66 .long .Lefi_header_end - .L_head
67 .long 0
68 .short IMAGE_SUBSYSTEM_EFI_APPLICATIO
69 .short IMAGE_DLL_CHARACTERISTICS_NX_C
70 .quad 0
71 .quad 0
72 .quad 0
73 .quad 0
74 .long 0
75 .long (.Lsection_table - .) / 8
76
77 .quad 0
78 .quad 0
79 .quad 0
80 .quad 0
81 .quad 0
82 .quad 0
83
84 #if defined(CONFIG_DEBUG_EFI) || defined(CONFI
85 .long .Lefi_debug_table - .L_head
86 .long .Lefi_debug_table_size
87
88 /*
89 * The debug table is referenced via i
90 * which is only defined for those par
91 * by a section declaration. Since thi
92 * section, the debug table must be em
93 * the .init.rodata section instead.
94 *
95 * Note that the payloads themselves a
96 * which means we can simply put those
97 */
98 __INITRODATA
99
100 .align 2
101 .Lefi_debug_table:
102 #ifdef CONFIG_DEBUG_EFI
103 // EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
104 .long 0
105 .long 0
106 .short 0
107 .short 0
108 .long IMAGE_DEBUG_TYPE_CODEVIEW
109 .long .Lefi_debug_entry_size
110 .long 0
111 .long .Lefi_debug_entry - .L_head
112 #endif
113 #ifdef CONFIG_ARM64_BTI_KERNEL
114 .long 0
115 .long 0
116 .short 0
117 .short 0
118 .long IMAGE_DEBUG_TYPE_EX_DLLCHARACT
119 .long 4
120 .long 0
121 .long .Lefi_dll_characteristics_ex -
122 #endif
123 .set .Lefi_debug_table_size, . - .L
124 .previous
125 #endif
126
127 // Section table
128 .Lsection_table:
129 .ascii ".text\0\0\0"
130 .long __initdata_begin - .Lefi_heade
131 .long .Lefi_header_end - .L_head
132 .long __initdata_begin - .Lefi_heade
133 .long .Lefi_header_end - .L_head
134
135 .long 0
136 .long 0
137 .short 0
138 .short 0
139 .long IMAGE_SCN_CNT_CODE | \
140 IMAGE_SCN_MEM_READ | \
141 IMAGE_SCN_MEM_EXECUTE
142
143 .ascii ".data\0\0\0"
144 .long __pecoff_data_size
145 .long __initdata_begin - .L_head
146 .long __pecoff_data_rawsize
147 .long __initdata_begin - .L_head
148
149 .long 0
150 .long 0
151 .short 0
152 .short 0
153 .long IMAGE_SCN_CNT_INITIALIZED_DATA
154 IMAGE_SCN_MEM_READ | \
155 IMAGE_SCN_MEM_WRITE
156
157 .set .Lsection_count, (. - .Lsectio
158
159 #ifdef CONFIG_DEBUG_EFI
160 .Lefi_debug_entry:
161 // EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY
162 .ascii "NB10"
163 .long 0
164 .long 0
165 .long 0
166
167 .asciz VMLINUX_PATH
168
169 .set .Lefi_debug_entry_size, . - .L
170 #endif
171 #ifdef CONFIG_ARM64_BTI_KERNEL
172 .Lefi_dll_characteristics_ex:
173 .long IMAGE_DLLCHARACTERISTICS_EX_FO
174 #endif
175
176 .balign SEGMENT_ALIGN
177 .Lefi_header_end:
178 #else
179 .set .Lpe_header_offset, 0x0
180 #endif
181 .endm
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