source: mainline/boot/genarch/include/efi.h@ dca8fe5

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since dca8fe5 was eb66f236, checked in by Jakub Jermar <jakub@…>, 14 years ago

Support for searching EFI configuration table.

  • Property mode set to 100644
File size: 2.9 KB
Line 
1/*
2 * Copyright (c) 2011 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef BOOT_EFI_H_
30#define BOOT_EFI_H_
31
32#include <arch/types.h>
33
34typedef struct {
35 uint64_t signature;
36 uint32_t revision;
37 uint32_t header_size;
38 uint32_t crc32;
39 uint32_t reserved;
40} efi_table_header_t;
41
42#define SAL_SYSTEM_TABLE_GUID \
43 { \
44 { \
45 0x32, 0x2d, 0x9d, 0xeb, 0x88, 0x2d, 0xd3, 0x11, \
46 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d \
47 } \
48 }
49
50typedef union {
51 uint8_t bytes[16];
52 struct {
53 uint64_t low;
54 uint64_t high;
55 };
56} efi_guid_t;
57
58typedef struct {
59 efi_guid_t guid;
60 void *table;
61} efi_configuration_table_t;
62
63typedef struct {
64 efi_table_header_t hdr;
65 char *fw_vendor;
66 uint32_t fw_revision;
67 void *cons_in_handle;
68 void *cons_in;
69 void *cons_out_handle;
70 void *cons_out;
71 void *cons_err_handle;
72 void *cons_err;
73 void *runtime_services;
74 void *boot_services;
75 sysarg_t conf_table_entries;
76 efi_configuration_table_t *conf_table;
77} efi_system_table_t;
78
79typedef enum {
80 EFI_RESERVED,
81 EFI_LOADER_CODE,
82 EFI_LOADER_DATA,
83 EFI_BOOT_SERVICES_CODE,
84 EFI_BOOT_SERVICES_DATA,
85 EFI_RUNTIME_SERVICES_CODE,
86 EFI_RUNTIME_SERVICES_DATA,
87 EFI_CONVENTIONAL_MEMORY,
88 EFI_UNUSABLE_MEMORY,
89 EFI_ACPI_RECLAIM_MEMORY,
90 EFI_ACPI_MEMORY_NVS,
91 EFI_MEMORY_MAPPED_IO,
92 EFI_MEMORY_MAPPED_IO_PORT_SPACE,
93 EFI_PAL_CODE
94} efi_memory_type_t;
95
96typedef struct {
97 uint32_t type;
98 uint64_t phys_start;
99 uint64_t virt_start;
100 uint64_t pages;
101 uint64_t attribute;
102} efi_v1_memdesc_t;
103
104#define EFI_PAGE_SIZE 4096
105
106extern void *efi_vendor_table_find(efi_system_table_t *, efi_guid_t);
107
108#endif
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