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6ae81428 | 1 | /**@file\r |
6c25c60e | 2 | \r |
8f2a5f80 HT |
3 | Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
4 | This program and the accompanying materials \r | |
6c25c60e | 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 | WinNtAutoscan.c\r | |
14 | \r | |
15 | Abstract:\r | |
16 | This PEIM to abstract memory auto-scan in a Windows NT environment.\r | |
17 | \r | |
18 | Revision History\r | |
19 | \r | |
6ae81428 | 20 | **/\r |
6c25c60e | 21 | \r |
22 | //\r | |
23 | // The package level header files this module uses\r | |
24 | //\r | |
25 | #include <PiPei.h>\r | |
26 | #include <WinNtPeim.h>\r | |
27 | //\r | |
28 | // The protocols, PPI and GUID defintions for this module\r | |
29 | //\r | |
6c25c60e | 30 | #include <Ppi/NtAutoscan.h>\r |
57b31029 | 31 | #include <Ppi/ReadOnlyVariable2.h>\r |
32 | \r | |
33 | #include <Guid/MemoryTypeInformation.h>\r | |
34 | \r | |
6c25c60e | 35 | //\r |
36 | // The Library classes this module consumes\r | |
37 | //\r | |
38 | #include <Library/DebugLib.h>\r | |
39 | #include <Library/PeimEntryPoint.h>\r | |
40 | #include <Library/HobLib.h>\r | |
68443c61 | 41 | #include <Library/PeiServicesLib.h>\r |
6c25c60e | 42 | \r |
57b31029 | 43 | EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {\r |
44 | { EfiReservedMemoryType, 0x0004 },\r | |
45 | { EfiRuntimeServicesCode, 0x0040 },\r | |
46 | { EfiRuntimeServicesData, 0x0040 },\r | |
47 | { EfiBootServicesCode, 0x0300 },\r | |
48 | { EfiBootServicesData, 0x1000 },\r | |
49 | { EfiMaxMemoryType, 0 }\r | |
50 | };\r | |
51 | \r | |
a95b6045 ED |
52 | /**\r |
53 | Validate variable data for the MemoryTypeInformation. \r | |
54 | \r | |
55 | @param MemoryData Variable data.\r | |
56 | @param MemoryDataSize Variable data length.\r | |
57 | \r | |
58 | @return TRUE The variable data is valid.\r | |
59 | @return FALSE The variable data is invalid.\r | |
60 | \r | |
61 | **/\r | |
62 | BOOLEAN\r | |
63 | ValidateMemoryTypeInfoVariable (\r | |
64 | IN EFI_MEMORY_TYPE_INFORMATION *MemoryData,\r | |
65 | IN UINTN MemoryDataSize\r | |
66 | )\r | |
67 | {\r | |
68 | UINTN Count;\r | |
69 | UINTN Index;\r | |
70 | \r | |
71 | // Check the input parameter.\r | |
72 | if (MemoryData == NULL) {\r | |
73 | return FALSE;\r | |
74 | }\r | |
75 | \r | |
76 | // Get Count\r | |
77 | Count = MemoryDataSize / sizeof (*MemoryData);\r | |
78 | \r | |
79 | // Check Size\r | |
80 | if (Count * sizeof(*MemoryData) != MemoryDataSize) {\r | |
81 | return FALSE;\r | |
82 | }\r | |
83 | \r | |
84 | // Check last entry type filed.\r | |
85 | if (MemoryData[Count - 1].Type != EfiMaxMemoryType) {\r | |
86 | return FALSE;\r | |
87 | }\r | |
88 | \r | |
89 | // Check the type filed.\r | |
90 | for (Index = 0; Index < Count - 1; Index++) {\r | |
91 | if (MemoryData[Index].Type >= EfiMaxMemoryType) {\r | |
92 | return FALSE;\r | |
93 | }\r | |
94 | }\r | |
95 | \r | |
96 | return TRUE;\r | |
97 | }\r | |
98 | \r | |
6c25c60e | 99 | EFI_STATUS\r |
100 | EFIAPI\r | |
101 | PeimInitializeWinNtAutoScan (\r | |
68443c61 | 102 | IN EFI_PEI_FILE_HANDLE FileHandle,\r |
103 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
6c25c60e | 104 | )\r |
105 | /*++\r | |
106 | \r | |
107 | Routine Description:\r | |
108 | Perform a call-back into the SEC simulator to get a memory value\r | |
109 | \r | |
110 | Arguments:\r | |
111 | FfsHeader - General purpose data available to every PEIM\r | |
112 | PeiServices - General purpose services available to every PEIM.\r | |
113 | \r | |
114 | Returns:\r | |
115 | None\r | |
116 | \r | |
117 | --*/\r | |
118 | {\r | |
119 | EFI_STATUS Status;\r | |
120 | EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;\r | |
121 | PEI_NT_AUTOSCAN_PPI *PeiNtService;\r | |
122 | UINT64 MemorySize;\r | |
123 | EFI_PHYSICAL_ADDRESS MemoryBase;\r | |
6c25c60e | 124 | UINTN Index;\r |
125 | EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;\r | |
57b31029 | 126 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *Variable;\r |
127 | UINTN DataSize;\r | |
128 | EFI_MEMORY_TYPE_INFORMATION MemoryData [EfiMaxMemoryType + 1];\r | |
6c25c60e | 129 | \r |
130 | \r | |
131 | DEBUG ((EFI_D_ERROR, "NT 32 Autoscan PEIM Loaded\n"));\r | |
132 | \r | |
133 | //\r | |
134 | // Get the PEI NT Autoscan PPI\r | |
135 | //\r | |
68443c61 | 136 | Status = PeiServicesLocatePpi (\r |
137 | &gPeiNtAutoScanPpiGuid, // GUID\r | |
138 | 0, // INSTANCE\r | |
139 | &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR\r | |
140 | (VOID**)&PeiNtService // PPI\r | |
141 | );\r | |
6c25c60e | 142 | ASSERT_EFI_ERROR (Status);\r |
143 | \r | |
6c25c60e | 144 | Index = 0;\r |
145 | do {\r | |
146 | Status = PeiNtService->NtAutoScan (Index, &MemoryBase, &MemorySize);\r | |
147 | if (!EFI_ERROR (Status)) {\r | |
148 | Attributes =\r | |
149 | (\r | |
150 | EFI_RESOURCE_ATTRIBUTE_PRESENT |\r | |
151 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r | |
152 | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r | |
153 | EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r | |
154 | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r | |
155 | EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r | |
156 | );\r | |
157 | \r | |
158 | if (Index == 0) {\r | |
159 | //\r | |
d73be1d1 | 160 | // Register the memory with the PEI Core\r |
6c25c60e | 161 | //\r |
68443c61 | 162 | Status = PeiServicesInstallPeiMemory (MemoryBase, MemorySize);\r |
6c25c60e | 163 | ASSERT_EFI_ERROR (Status);\r |
164 | \r | |
165 | Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;\r | |
166 | }\r | |
167 | \r | |
168 | BuildResourceDescriptorHob (\r | |
169 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
170 | Attributes,\r | |
171 | MemoryBase,\r | |
172 | MemorySize\r | |
173 | );\r | |
174 | }\r | |
175 | Index++;\r | |
176 | } while (!EFI_ERROR (Status));\r | |
177 | \r | |
178 | //\r | |
179 | // Build the CPU hob with 36-bit addressing and 16-bits of IO space.\r | |
180 | //\r | |
181 | BuildCpuHob (36, 16);\r | |
57b31029 | 182 | \r |
183 | //\r | |
184 | // Build GUIDed Hob that contains the Memory Type Information array\r | |
185 | //\r | |
186 | Status = PeiServicesLocatePpi (\r | |
187 | &gEfiPeiReadOnlyVariable2PpiGuid,\r | |
188 | 0,\r | |
189 | NULL,\r | |
190 | (VOID **)&Variable\r | |
191 | );\r | |
192 | ASSERT_EFI_ERROR (Status);\r | |
193 | \r | |
194 | DataSize = sizeof (MemoryData);\r | |
195 | Status = Variable->GetVariable (\r | |
196 | Variable,\r | |
197 | EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,\r | |
198 | &gEfiMemoryTypeInformationGuid,\r | |
199 | NULL,\r | |
200 | &DataSize,\r | |
201 | &MemoryData\r | |
202 | );\r | |
a95b6045 | 203 | if (EFI_ERROR (Status) || !ValidateMemoryTypeInfoVariable(MemoryData, DataSize)) {\r |
57b31029 | 204 | //\r |
205 | // Create Memory Type Information HOB\r | |
206 | //\r | |
207 | BuildGuidDataHob (\r | |
208 | &gEfiMemoryTypeInformationGuid,\r | |
209 | mDefaultMemoryTypeInformation,\r | |
210 | sizeof(mDefaultMemoryTypeInformation)\r | |
211 | );\r | |
212 | } else {\r | |
213 | //\r | |
214 | // Create Memory Type Information HOB\r | |
215 | //\r | |
216 | BuildGuidDataHob (\r | |
217 | &gEfiMemoryTypeInformationGuid,\r | |
218 | MemoryData,\r | |
219 | DataSize\r | |
220 | );\r | |
221 | }\r | |
222 | \r | |
6c25c60e | 223 | return Status;\r |
224 | }\r |