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1 | /** @file\r |
2 | This library will parse the Slim Bootloader to get required information.\r | |
3 | \r | |
4 | Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include <PiDxe.h>\r | |
10 | #include <Library/BaseLib.h>\r | |
11 | #include <Library/BaseMemoryLib.h>\r | |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/PcdLib.h>\r | |
14 | #include <Library/IoLib.h>\r | |
15 | #include <Library/HobLib.h>\r | |
16 | #include <Library/BlParseLib.h>\r | |
17 | #include <IndustryStandard/Acpi.h>\r | |
18 | \r | |
19 | \r | |
20 | /**\r | |
21 | This function retrieves the parameter base address from boot loader.\r | |
22 | \r | |
23 | This function will get bootloader specific parameter address for UEFI payload.\r | |
24 | e.g. HobList pointer for Slim Bootloader, and coreboot table header for Coreboot.\r | |
25 | \r | |
26 | @retval NULL Failed to find the GUID HOB.\r | |
27 | @retval others GUIDed HOB data pointer.\r | |
28 | \r | |
29 | **/\r | |
30 | VOID *\r | |
31 | EFIAPI\r | |
32 | GetParameterBase (\r | |
33 | VOID\r | |
34 | )\r | |
35 | {\r | |
36 | EFI_HOB_HANDOFF_INFO_TABLE *HandoffTable;\r | |
37 | \r | |
38 | HandoffTable = (EFI_HOB_HANDOFF_INFO_TABLE *)(UINTN) GET_BOOTLOADER_PARAMETER ();\r | |
39 | if ((HandoffTable->Header.HobType == EFI_HOB_TYPE_HANDOFF) &&\r | |
40 | (HandoffTable->Header.HobLength == sizeof (EFI_HOB_HANDOFF_INFO_TABLE)) &&\r | |
41 | (HandoffTable->Header.Reserved == 0)) {\r | |
42 | return (VOID *)HandoffTable;\r | |
43 | }\r | |
44 | \r | |
45 | return NULL;\r | |
46 | }\r | |
47 | \r | |
48 | \r | |
49 | /**\r | |
50 | This function retrieves a GUIDed HOB data from Slim Bootloader.\r | |
51 | \r | |
52 | This function will search SBL HOB list to find the first GUIDed HOB that\r | |
53 | its GUID matches Guid.\r | |
54 | \r | |
55 | @param[in] Guid A pointer to HOB GUID to search.\r | |
56 | \r | |
57 | @retval NULL Failed to find the GUID HOB.\r | |
58 | @retval others GUIDed HOB data pointer.\r | |
59 | \r | |
60 | **/\r | |
61 | VOID *\r | |
62 | GetGuidHobDataFromSbl (\r | |
63 | IN EFI_GUID *Guid\r | |
64 | )\r | |
65 | {\r | |
66 | UINT8 *GuidHob;\r | |
67 | CONST VOID *HobList;\r | |
68 | \r | |
69 | HobList = GetParameterBase ();\r | |
70 | ASSERT (HobList != NULL);\r | |
71 | GuidHob = GetNextGuidHob (Guid, HobList);\r | |
72 | if (GuidHob != NULL) {\r | |
73 | return GET_GUID_HOB_DATA (GuidHob);\r | |
74 | }\r | |
75 | \r | |
76 | return NULL;\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | Acquire the memory map information.\r | |
81 | \r | |
82 | @param MemInfoCallback The callback routine\r | |
83 | @param Params Pointer to the callback routine parameter\r | |
84 | \r | |
85 | @retval RETURN_SUCCESS Successfully find out the memory information.\r | |
86 | @retval RETURN_NOT_FOUND Failed to find the memory information.\r | |
87 | \r | |
88 | **/\r | |
89 | RETURN_STATUS\r | |
90 | EFIAPI\r | |
91 | ParseMemoryInfo (\r | |
92 | IN BL_MEM_INFO_CALLBACK MemInfoCallback,\r | |
93 | IN VOID *Params\r | |
94 | )\r | |
95 | {\r | |
96 | MEMROY_MAP_INFO *MemoryMapInfo;\r | |
97 | UINTN Idx;\r | |
98 | \r | |
99 | MemoryMapInfo = (MEMROY_MAP_INFO *) GetGuidHobDataFromSbl (&gLoaderMemoryMapInfoGuid);\r | |
100 | if (MemoryMapInfo == NULL) {\r | |
101 | ASSERT (FALSE);\r | |
102 | return RETURN_NOT_FOUND;\r | |
103 | }\r | |
104 | \r | |
105 | for (Idx = 0; Idx < MemoryMapInfo->Count; Idx++) {\r | |
106 | MemInfoCallback (&MemoryMapInfo->Entry[Idx], Params);\r | |
107 | }\r | |
108 | \r | |
109 | return RETURN_SUCCESS;\r | |
110 | }\r | |
111 | \r | |
112 | /**\r | |
113 | Acquire acpi table and smbios table from slim bootloader\r | |
114 | \r | |
115 | @param SystemTableInfo Pointer to the system table info\r | |
116 | \r | |
117 | @retval RETURN_SUCCESS Successfully find out the tables.\r | |
118 | @retval RETURN_NOT_FOUND Failed to find the tables.\r | |
119 | \r | |
120 | **/\r | |
121 | RETURN_STATUS\r | |
122 | EFIAPI\r | |
123 | ParseSystemTable (\r | |
124 | OUT SYSTEM_TABLE_INFO *SystemTableInfo\r | |
125 | )\r | |
126 | {\r | |
127 | SYSTEM_TABLE_INFO *TableInfo;\r | |
128 | \r | |
129 | TableInfo = (SYSTEM_TABLE_INFO *)GetGuidHobDataFromSbl (&gUefiSystemTableInfoGuid);\r | |
130 | if (TableInfo == NULL) {\r | |
131 | ASSERT (FALSE);\r | |
132 | return RETURN_NOT_FOUND;\r | |
133 | }\r | |
134 | \r | |
135 | CopyMem (SystemTableInfo, TableInfo, sizeof (SYSTEM_TABLE_INFO));\r | |
136 | \r | |
137 | return RETURN_SUCCESS;\r | |
138 | }\r | |
139 | \r | |
140 | \r | |
141 | /**\r | |
142 | Find the serial port information\r | |
143 | \r | |
144 | @param SERIAL_PORT_INFO Pointer to serial port info structure\r | |
145 | \r | |
146 | @retval RETURN_SUCCESS Successfully find the serial port information.\r | |
147 | @retval RETURN_NOT_FOUND Failed to find the serial port information .\r | |
148 | \r | |
149 | **/\r | |
150 | RETURN_STATUS\r | |
151 | EFIAPI\r | |
152 | ParseSerialInfo (\r | |
153 | OUT SERIAL_PORT_INFO *SerialPortInfo\r | |
154 | )\r | |
155 | {\r | |
156 | SERIAL_PORT_INFO *BlSerialInfo;\r | |
157 | \r | |
158 | BlSerialInfo = (SERIAL_PORT_INFO *) GetGuidHobDataFromSbl (&gUefiSerialPortInfoGuid);\r | |
159 | if (BlSerialInfo == NULL) {\r | |
160 | ASSERT (FALSE);\r | |
161 | return RETURN_NOT_FOUND;\r | |
162 | }\r | |
163 | \r | |
164 | CopyMem (SerialPortInfo, BlSerialInfo, sizeof (SERIAL_PORT_INFO));\r | |
165 | \r | |
166 | return RETURN_SUCCESS;\r | |
167 | }\r | |
168 | \r | |
169 | \r | |
170 | /**\r | |
171 | Find the video frame buffer information\r | |
172 | \r | |
173 | @param GfxInfo Pointer to the EFI_PEI_GRAPHICS_INFO_HOB structure\r | |
174 | \r | |
175 | @retval RETURN_SUCCESS Successfully find the video frame buffer information.\r | |
176 | @retval RETURN_NOT_FOUND Failed to find the video frame buffer information .\r | |
177 | \r | |
178 | **/\r | |
179 | RETURN_STATUS\r | |
180 | EFIAPI\r | |
181 | ParseGfxInfo (\r | |
182 | OUT EFI_PEI_GRAPHICS_INFO_HOB *GfxInfo\r | |
183 | )\r | |
184 | {\r | |
185 | EFI_PEI_GRAPHICS_INFO_HOB *BlGfxInfo;\r | |
186 | \r | |
187 | BlGfxInfo = (EFI_PEI_GRAPHICS_INFO_HOB *) GetGuidHobDataFromSbl (&gEfiGraphicsInfoHobGuid);\r | |
188 | if (BlGfxInfo == NULL) {\r | |
189 | return RETURN_NOT_FOUND;\r | |
190 | }\r | |
191 | \r | |
192 | CopyMem (GfxInfo, BlGfxInfo, sizeof (EFI_PEI_GRAPHICS_INFO_HOB));\r | |
193 | \r | |
194 | return RETURN_SUCCESS;\r | |
195 | }\r | |
196 | \r | |
197 | /**\r | |
198 | Find the video frame buffer device information\r | |
199 | \r | |
200 | @param GfxDeviceInfo Pointer to the EFI_PEI_GRAPHICS_DEVICE_INFO_HOB structure\r | |
201 | \r | |
202 | @retval RETURN_SUCCESS Successfully find the video frame buffer information.\r | |
203 | @retval RETURN_NOT_FOUND Failed to find the video frame buffer information.\r | |
204 | \r | |
205 | **/\r | |
206 | RETURN_STATUS\r | |
207 | EFIAPI\r | |
208 | ParseGfxDeviceInfo (\r | |
209 | OUT EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *GfxDeviceInfo\r | |
210 | )\r | |
211 | {\r | |
212 | EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *BlGfxDeviceInfo;\r | |
213 | \r | |
214 | BlGfxDeviceInfo = (EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *) GetGuidHobDataFromSbl (&gEfiGraphicsDeviceInfoHobGuid);\r | |
215 | if (BlGfxDeviceInfo == NULL) {\r | |
216 | return RETURN_NOT_FOUND;\r | |
217 | }\r | |
218 | \r | |
219 | CopyMem (GfxDeviceInfo, BlGfxDeviceInfo, sizeof (EFI_PEI_GRAPHICS_DEVICE_INFO_HOB));\r | |
220 | \r | |
221 | return RETURN_SUCCESS;\r | |
222 | }\r | |
223 | \r |