]>
Commit | Line | Data |
---|---|---|
878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | Hob.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | EFI PEI Core HOB services\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | #include <PeiMain.h>\r | |
23 | \r | |
24 | EFI_STATUS\r | |
25 | EFIAPI\r | |
26 | PeiGetHobList (\r | |
27 | IN EFI_PEI_SERVICES **PeiServices,\r | |
28 | IN OUT VOID **HobList\r | |
29 | )\r | |
30 | /*++\r | |
31 | \r | |
32 | Routine Description:\r | |
33 | \r | |
34 | Gets the pointer to the HOB List.\r | |
35 | \r | |
36 | Arguments:\r | |
37 | \r | |
38 | PeiServices - The PEI core services table.\r | |
39 | HobList - Pointer to the HOB List.\r | |
40 | \r | |
41 | Returns:\r | |
42 | \r | |
43 | EFI_SUCCESS - Get the pointer of HOB List\r | |
44 | EFI_NOT_AVAILABLE_YET - the HOB List is not yet published\r | |
45 | EFI_INVALID_PARAMETER - HobList is NULL (in debug mode)\r | |
46 | \r | |
47 | --*/\r | |
48 | {\r | |
49 | PEI_CORE_INSTANCE *PrivateData;\r | |
50 | \r | |
51 | \r | |
52 | //\r | |
53 | // Only check this parameter in debug mode\r | |
54 | //\r | |
55 | \r | |
2ce31132 | 56 | DEBUG_CODE_BEGIN (); \r |
878ddf1f | 57 | if (HobList == NULL) {\r |
58 | return EFI_INVALID_PARAMETER;\r | |
59 | }\r | |
2ce31132 | 60 | DEBUG_CODE_END ();\r |
878ddf1f | 61 | \r |
62 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
63 | \r | |
add13dc2 | 64 | *HobList = PrivateData->HobList.Raw;\r |
878ddf1f | 65 | \r |
66 | \r | |
67 | return EFI_SUCCESS; \r | |
68 | }\r | |
69 | \r | |
70 | \r | |
71 | EFI_STATUS\r | |
72 | EFIAPI\r | |
73 | PeiCreateHob (\r | |
74 | IN EFI_PEI_SERVICES **PeiServices,\r | |
75 | IN UINT16 Type,\r | |
76 | IN UINT16 Length,\r | |
77 | IN OUT VOID **Hob\r | |
78 | )\r | |
79 | /*++\r | |
80 | \r | |
81 | Routine Description:\r | |
82 | \r | |
83 | Add a new HOB to the HOB List.\r | |
84 | \r | |
85 | Arguments:\r | |
86 | \r | |
87 | PeiServices - The PEI core services table.\r | |
88 | Type - Type of the new HOB.\r | |
89 | Length - Length of the new HOB to allocate.\r | |
90 | Hob - Pointer to the new HOB.\r | |
91 | \r | |
92 | Returns:\r | |
93 | \r | |
94 | Status - EFI_SUCCESS\r | |
95 | - EFI_INVALID_PARAMETER if Hob is NULL\r | |
96 | - EFI_NOT_AVAILABLE_YET if HobList is still not available.\r | |
97 | - EFI_OUT_OF_RESOURCES if there is no more memory to grow the Hoblist.\r | |
98 | \r | |
99 | --*/\r | |
100 | {\r | |
101 | EFI_STATUS Status;\r | |
102 | EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;\r | |
103 | EFI_HOB_GENERIC_HEADER *HobEnd;\r | |
104 | EFI_PHYSICAL_ADDRESS FreeMemory;\r | |
105 | \r | |
106 | \r | |
107 | Status = PeiGetHobList (PeiServices, Hob);\r | |
108 | if (EFI_ERROR(Status)) {\r | |
109 | return Status;\r | |
110 | }\r | |
111 | \r | |
112 | HandOffHob = *Hob;\r | |
113 | \r | |
add13dc2 | 114 | Length = (UINT16)((Length + 0x7) & (~0x7));\r |
878ddf1f | 115 | \r |
116 | FreeMemory = HandOffHob->EfiFreeMemoryTop -\r | |
117 | HandOffHob->EfiFreeMemoryBottom;\r | |
118 | \r | |
119 | if (FreeMemory < Length) {\r | |
120 | return EFI_OUT_OF_RESOURCES;\r | |
121 | }\r | |
122 | \r | |
123 | *Hob = (VOID*) (UINTN) HandOffHob->EfiEndOfHobList;\r | |
add13dc2 | 124 | ((EFI_HOB_GENERIC_HEADER*) *Hob)->HobType = Type;\r |
878ddf1f | 125 | ((EFI_HOB_GENERIC_HEADER*) *Hob)->HobLength = Length;\r |
add13dc2 | 126 | ((EFI_HOB_GENERIC_HEADER*) *Hob)->Reserved = 0;\r |
878ddf1f | 127 | \r |
128 | HobEnd = (EFI_HOB_GENERIC_HEADER*) ((UINTN) *Hob + Length);\r | |
129 | HandOffHob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r | |
130 | \r | |
131 | HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;\r | |
132 | HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);\r | |
133 | HobEnd->Reserved = 0;\r | |
134 | HobEnd++;\r | |
135 | HandOffHob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r | |
136 | \r | |
137 | \r | |
138 | return EFI_SUCCESS; \r | |
139 | }\r | |
140 | \r | |
141 | \r | |
142 | EFI_STATUS\r | |
143 | PeiCoreBuildHobHandoffInfoTable (\r | |
144 | IN EFI_BOOT_MODE BootMode,\r | |
145 | IN EFI_PHYSICAL_ADDRESS MemoryBegin,\r | |
146 | IN UINT64 MemoryLength\r | |
147 | )\r | |
148 | /*++\r | |
149 | \r | |
150 | Routine Description:\r | |
151 | \r | |
152 | Builds a Handoff Information Table HOB\r | |
153 | \r | |
154 | Arguments:\r | |
155 | \r | |
156 | BootMode - Current Bootmode\r | |
157 | MemoryBegin - Start Memory Address.\r | |
158 | MemoryLength - Length of Memory.\r | |
159 | \r | |
160 | Returns:\r | |
161 | \r | |
162 | EFI_SUCCESS\r | |
163 | \r | |
164 | --*/\r | |
165 | {\r | |
166 | EFI_HOB_HANDOFF_INFO_TABLE *Hob;\r | |
add13dc2 | 167 | EFI_HOB_GENERIC_HEADER *HobEnd;\r |
878ddf1f | 168 | \r |
add13dc2 | 169 | Hob = (VOID *)(UINTN)MemoryBegin;\r |
878ddf1f | 170 | HobEnd = (EFI_HOB_GENERIC_HEADER*) (Hob+1);\r |
add13dc2 | 171 | Hob->Header.HobType = EFI_HOB_TYPE_HANDOFF;\r |
172 | Hob->Header.HobLength = sizeof(EFI_HOB_HANDOFF_INFO_TABLE);\r | |
173 | Hob->Header.Reserved = 0;\r | |
878ddf1f | 174 | \r |
175 | HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;\r | |
176 | HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);\r | |
177 | HobEnd->Reserved = 0;\r | |
178 | \r | |
179 | Hob->Version = EFI_HOB_HANDOFF_TABLE_VERSION;\r | |
180 | Hob->BootMode = BootMode;\r | |
181 | \r | |
182 | Hob->EfiMemoryTop = MemoryBegin + MemoryLength;\r | |
183 | Hob->EfiMemoryBottom = MemoryBegin;\r | |
184 | Hob->EfiFreeMemoryTop = MemoryBegin + MemoryLength;\r | |
185 | Hob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) (HobEnd+1);\r | |
186 | Hob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r | |
187 | \r | |
188 | return EFI_SUCCESS;\r | |
189 | }\r |