1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef BOOT_COMPRESSED_EFI_H |
3 | #define BOOT_COMPRESSED_EFI_H |
4 | |
5 | #if defined(_LINUX_EFI_H) || defined(_ASM_X86_EFI_H) |
6 | #error Please do not include kernel proper namespace headers |
7 | #endif |
8 | |
9 | typedef guid_t efi_guid_t __aligned(__alignof__(u32)); |
10 | |
11 | #define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \ |
12 | (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ |
13 | (b) & 0xff, ((b) >> 8) & 0xff, \ |
14 | (c) & 0xff, ((c) >> 8) & 0xff, d } } |
15 | |
16 | #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
17 | #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) |
18 | #define EFI_CC_BLOB_GUID EFI_GUID(0x067b1f5f, 0xcf26, 0x44c5, 0x85, 0x54, 0x93, 0xd7, 0x77, 0x91, 0x2d, 0x42) |
19 | #define LINUX_EFI_UNACCEPTED_MEM_TABLE_GUID EFI_GUID(0xd5d1de3c, 0x105c, 0x44f9, 0x9e, 0xa9, 0xbc, 0xef, 0x98, 0x12, 0x00, 0x31) |
20 | |
21 | #define EFI32_LOADER_SIGNATURE "EL32" |
22 | #define EFI64_LOADER_SIGNATURE "EL64" |
23 | |
24 | /* |
25 | * Generic EFI table header |
26 | */ |
27 | typedef struct { |
28 | u64 signature; |
29 | u32 revision; |
30 | u32 ; |
31 | u32 crc32; |
32 | u32 reserved; |
33 | } efi_table_hdr_t; |
34 | |
35 | #define EFI_CONVENTIONAL_MEMORY 7 |
36 | #define EFI_UNACCEPTED_MEMORY 15 |
37 | |
38 | #define EFI_MEMORY_MORE_RELIABLE \ |
39 | ((u64)0x0000000000010000ULL) /* higher reliability */ |
40 | #define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */ |
41 | |
42 | #define EFI_PAGE_SHIFT 12 |
43 | |
44 | typedef struct { |
45 | u32 type; |
46 | u32 pad; |
47 | u64 phys_addr; |
48 | u64 virt_addr; |
49 | u64 num_pages; |
50 | u64 attribute; |
51 | } efi_memory_desc_t; |
52 | |
53 | #define efi_early_memdesc_ptr(map, desc_size, n) \ |
54 | (efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size))) |
55 | |
56 | typedef struct { |
57 | efi_guid_t guid; |
58 | u64 table; |
59 | } efi_config_table_64_t; |
60 | |
61 | typedef struct { |
62 | efi_guid_t guid; |
63 | u32 table; |
64 | } efi_config_table_32_t; |
65 | |
66 | typedef struct { |
67 | efi_table_hdr_t hdr; |
68 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ |
69 | u32 fw_revision; |
70 | u32 __pad1; |
71 | u64 con_in_handle; |
72 | u64 con_in; |
73 | u64 con_out_handle; |
74 | u64 con_out; |
75 | u64 stderr_handle; |
76 | u64 stderr; |
77 | u64 runtime; |
78 | u64 boottime; |
79 | u32 nr_tables; |
80 | u32 __pad2; |
81 | u64 tables; |
82 | } efi_system_table_64_t; |
83 | |
84 | typedef struct { |
85 | efi_table_hdr_t hdr; |
86 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ |
87 | u32 fw_revision; |
88 | u32 con_in_handle; |
89 | u32 con_in; |
90 | u32 con_out_handle; |
91 | u32 con_out; |
92 | u32 stderr_handle; |
93 | u32 stderr; |
94 | u32 runtime; |
95 | u32 boottime; |
96 | u32 nr_tables; |
97 | u32 tables; |
98 | } efi_system_table_32_t; |
99 | |
100 | /* kexec external ABI */ |
101 | struct efi_setup_data { |
102 | u64 fw_vendor; |
103 | u64 __unused; |
104 | u64 tables; |
105 | u64 smbios; |
106 | u64 reserved[8]; |
107 | }; |
108 | |
109 | struct efi_unaccepted_memory { |
110 | u32 version; |
111 | u32 unit_size; |
112 | u64 phys_base; |
113 | u64 size; |
114 | unsigned long bitmap[]; |
115 | }; |
116 | |
117 | static inline int efi_guidcmp (efi_guid_t left, efi_guid_t right) |
118 | { |
119 | return memcmp(&left, &right, sizeof (efi_guid_t)); |
120 | } |
121 | |
122 | #ifdef CONFIG_EFI |
123 | bool __pure __efi_soft_reserve_enabled(void); |
124 | |
125 | static inline bool __pure efi_soft_reserve_enabled(void) |
126 | { |
127 | return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE) |
128 | && __efi_soft_reserve_enabled(); |
129 | } |
130 | #else |
131 | static inline bool efi_soft_reserve_enabled(void) |
132 | { |
133 | return false; |
134 | } |
135 | #endif /* CONFIG_EFI */ |
136 | #endif /* BOOT_COMPRESSED_EFI_H */ |
137 | |