summaryrefslogtreecommitdiff
path: root/drivers/firmware/efi/libstub/zboot-header.S
blob: ec4525d40e0cf6d635161da889f14862d7a5610d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* SPDX-License-Identifier: GPL-2.0 */

#include <linux/pe.h>

#ifdef CONFIG_64BIT
	.set		.Lextra_characteristics, 0x0
	.set		.Lpe_opt_magic, PE_OPT_MAGIC_PE32PLUS
#else
	.set		.Lextra_characteristics, IMAGE_FILE_32BIT_MACHINE
	.set		.Lpe_opt_magic, PE_OPT_MAGIC_PE32
#endif

	.section	".head", "a"
	.globl		__efistub_efi_zboot_header
__efistub_efi_zboot_header:
.Ldoshdr:
	.long		MZ_MAGIC
	.ascii		"zimg"					// image type
	.long		__efistub__gzdata_start - .Ldoshdr	// payload offset
	.long		__efistub__gzdata_size - 12		// payload size
	.long		0, 0					// reserved
	.asciz		COMP_TYPE				// compression type
	.org		.Ldoshdr + 0x38
	.long		LINUX_PE_MAGIC
	.long		.Lpehdr - .Ldoshdr			// PE header offset

.Lpehdr:
	.long		PE_MAGIC
	.short		MACHINE_TYPE
	.short		.Lsection_count
	.long		0
	.long		0
	.long		0
	.short		.Lsection_table - .Loptional_header
	.short		IMAGE_FILE_DEBUG_STRIPPED | \
			IMAGE_FILE_EXECUTABLE_IMAGE | \
			IMAGE_FILE_LINE_NUMS_STRIPPED |\
			.Lextra_characteristics

.Loptional_header:
	.short		.Lpe_opt_magic
	.byte		0, 0
	.long		_etext - .Lefi_header_end
	.long		__data_size
	.long		0
	.long		__efistub_efi_zboot_entry - .Ldoshdr
	.long		.Lefi_header_end - .Ldoshdr

#ifdef CONFIG_64BIT
	.quad		0
#else
	.long		_etext - .Ldoshdr, 0x0
#endif
	.long		4096
	.long		512
	.short		0, 0
	.short		LINUX_EFISTUB_MAJOR_VERSION	// MajorImageVersion
	.short		LINUX_EFISTUB_MINOR_VERSION	// MinorImageVersion
	.short		0, 0
	.long		0
	.long		_end - .Ldoshdr

	.long		.Lefi_header_end - .Ldoshdr
	.long		0
	.short		IMAGE_SUBSYSTEM_EFI_APPLICATION
	.short		0
#ifdef CONFIG_64BIT
	.quad		0, 0, 0, 0
#else
	.long		0, 0, 0, 0
#endif
	.long		0
	.long		(.Lsection_table - .) / 8

	.quad		0				// ExportTable
	.quad		0				// ImportTable
	.quad		0				// ResourceTable
	.quad		0				// ExceptionTable
	.quad		0				// CertificationTable
	.quad		0				// BaseRelocationTable
#ifdef CONFIG_DEBUG_EFI
	.long		.Lefi_debug_table - .Ldoshdr	// DebugTable
	.long		.Lefi_debug_table_size
#endif

.Lsection_table:
	.ascii		".text\0\0\0"
	.long		_etext - .Lefi_header_end
	.long		.Lefi_header_end - .Ldoshdr
	.long		_etext - .Lefi_header_end
	.long		.Lefi_header_end - .Ldoshdr

	.long		0, 0
	.short		0, 0
	.long		IMAGE_SCN_CNT_CODE | \
			IMAGE_SCN_MEM_READ | \
			IMAGE_SCN_MEM_EXECUTE

	.ascii		".data\0\0\0"
	.long		__data_size
	.long		_etext - .Ldoshdr
	.long		__data_rawsize
	.long		_etext - .Ldoshdr

	.long		0, 0
	.short		0, 0
	.long		IMAGE_SCN_CNT_INITIALIZED_DATA | \
			IMAGE_SCN_MEM_READ | \
			IMAGE_SCN_MEM_WRITE

	.set		.Lsection_count, (. - .Lsection_table) / 40

#ifdef CONFIG_DEBUG_EFI
	.section	".rodata", "a"
	.align		2
.Lefi_debug_table:
	// EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
	.long		0				// Characteristics
	.long		0				// TimeDateStamp
	.short		0				// MajorVersion
	.short		0				// MinorVersion
	.long		IMAGE_DEBUG_TYPE_CODEVIEW	// Type
	.long		.Lefi_debug_entry_size		// SizeOfData
	.long		0				// RVA
	.long		.Lefi_debug_entry - .Ldoshdr	// FileOffset

	.set		.Lefi_debug_table_size, . - .Lefi_debug_table
	.previous

.Lefi_debug_entry:
	// EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY
	.ascii		"NB10"				// Signature
	.long		0				// Unknown
	.long		0				// Unknown2
	.long		0				// Unknown3

	.asciz		ZBOOT_EFI_PATH

	.set		.Lefi_debug_entry_size, . - .Lefi_debug_entry
#endif

	.p2align	12
.Lefi_header_end: