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1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved.\r | |
4 | * \r | |
5 | * This program and the accompanying materials \r | |
6 | * are licensed and made available under the terms and conditions of the BSD License \r | |
7 | * which accompanies this distribution. The full text of the license may be found at \r | |
8 | * http://opensource.org/licenses/bsd-license.php \r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | //\r | |
16 | // The package level header files this module uses\r | |
17 | //\r | |
18 | #include <PiPei.h>\r | |
19 | \r | |
20 | //\r | |
21 | // The protocols, PPI and GUID defintions for this module\r | |
22 | //\r | |
23 | #include <Ppi/MasterBootMode.h>\r | |
24 | #include <Ppi/BootInRecoveryMode.h>\r | |
25 | #include <Guid/MemoryTypeInformation.h>\r | |
26 | //\r | |
27 | // The Library classes this module consumes\r | |
28 | //\r | |
29 | #include <Library/DebugLib.h>\r | |
30 | #include <Library/PeimEntryPoint.h>\r | |
31 | #include <Library/PcdLib.h>\r | |
32 | #include <Library/HobLib.h>\r | |
33 | #include <Library/PeiServicesLib.h>\r | |
34 | #include <Library/ArmLib.h>\r | |
35 | #include <Library/IoLib.h>\r | |
36 | #include <Library/MemoryAllocationLib.h>\r | |
37 | #include <Library/ArmPlatformLib.h>\r | |
38 | \r | |
39 | VOID\r | |
40 | InitMmu (\r | |
41 | VOID\r | |
42 | )\r | |
43 | {\r | |
44 | ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;\r | |
45 | VOID *TranslationTableBase;\r | |
46 | UINTN TranslationTableSize;\r | |
47 | \r | |
48 | // Get Virtual Memory Map from the Platform Library\r | |
49 | ArmPlatformGetVirtualMemoryMap(&MemoryTable);\r | |
50 | \r | |
51 | //Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in\r | |
52 | // DRAM (even at the top of DRAM as it is the first permanent memory allocation)\r | |
53 | ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);\r | |
54 | }\r | |
55 | \r | |
56 | // May want to put this into a library so you only need the PCD settings if you are using the feature?\r | |
57 | VOID\r | |
58 | BuildMemoryTypeInformationHob (\r | |
59 | VOID\r | |
60 | )\r | |
61 | {\r | |
62 | EFI_MEMORY_TYPE_INFORMATION Info[10];\r | |
63 | \r | |
64 | Info[0].Type = EfiACPIReclaimMemory;\r | |
65 | Info[0].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);\r | |
66 | Info[1].Type = EfiACPIMemoryNVS;\r | |
67 | Info[1].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);\r | |
68 | Info[2].Type = EfiReservedMemoryType;\r | |
69 | Info[2].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiReservedMemoryType);\r | |
70 | Info[3].Type = EfiRuntimeServicesData;\r | |
71 | Info[3].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);\r | |
72 | Info[4].Type = EfiRuntimeServicesCode;\r | |
73 | Info[4].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);\r | |
74 | Info[5].Type = EfiBootServicesCode;\r | |
75 | Info[5].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesCode);\r | |
76 | Info[6].Type = EfiBootServicesData;\r | |
77 | Info[6].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesData);\r | |
78 | Info[7].Type = EfiLoaderCode;\r | |
79 | Info[7].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderCode);\r | |
80 | Info[8].Type = EfiLoaderData;\r | |
81 | Info[8].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderData);\r | |
82 | \r | |
83 | // Terminator for the list\r | |
84 | Info[9].Type = EfiMaxMemoryType;\r | |
85 | Info[9].NumberOfPages = 0;\r | |
86 | \r | |
87 | BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));\r | |
88 | }\r | |
89 | /*++\r | |
90 | \r | |
91 | Routine Description:\r | |
92 | \r | |
93 | \r | |
94 | \r | |
95 | Arguments:\r | |
96 | \r | |
97 | FileHandle - Handle of the file being invoked.\r | |
98 | PeiServices - Describes the list of possible PEI Services.\r | |
99 | \r | |
100 | Returns:\r | |
101 | \r | |
102 | Status - EFI_SUCCESS if the boot mode could be set\r | |
103 | \r | |
104 | --*/\r | |
105 | EFI_STATUS\r | |
106 | EFIAPI\r | |
107 | InitializeMemory (\r | |
108 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
109 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
110 | )\r | |
111 | {\r | |
112 | EFI_STATUS Status;\r | |
113 | EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;\r | |
114 | ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;\r | |
115 | UINTN Index;\r | |
116 | UINTN SystemMemoryTop;\r | |
117 | UINTN UefiMemoryBase;\r | |
118 | UINTN UefiMemorySize;\r | |
119 | \r | |
120 | DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));\r | |
121 | \r | |
122 | // Ensure PcdSystemMemorySize has been set\r | |
123 | ASSERT (FixedPcdGet32 (PcdSystemMemorySize) != 0);\r | |
124 | \r | |
125 | SystemMemoryTop = (UINTN)FixedPcdGet32 (PcdSystemMemoryBase) + (UINTN)FixedPcdGet32 (PcdSystemMemorySize);\r | |
126 | \r | |
127 | //\r | |
128 | // Initialize the System Memory (DRAM)\r | |
129 | //\r | |
130 | if (FeaturePcdGet(PcdStandalone)) {\r | |
131 | // In case of a standalone version, the DRAM is already initialized\r | |
132 | ArmPlatformInitializeSystemMemory();\r | |
133 | }\r | |
134 | \r | |
135 | //\r | |
136 | // Declare the UEFI memory to PEI\r | |
137 | //\r | |
138 | if (FeaturePcdGet(PcdStandalone)) {\r | |
139 | // In case of standalone UEFI, we set the UEFI memory region at the top of the DRAM\r | |
140 | UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r | |
141 | } else {\r | |
142 | // In case of a non standalone UEFI, we set the UEFI memory below the Firmware Volume\r | |
143 | UefiMemoryBase = FixedPcdGet32 (PcdNormalFdBaseAddress) - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r | |
144 | }\r | |
145 | UefiMemorySize = FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r | |
146 | Status = PeiServicesInstallPeiMemory (UefiMemoryBase,UefiMemorySize);\r | |
147 | ASSERT_EFI_ERROR (Status);\r | |
148 | \r | |
149 | //\r | |
150 | // Now, the permanent memory has been installed, we can call AllocatePages()\r | |
151 | //\r | |
152 | Attributes = (\r | |
153 | EFI_RESOURCE_ATTRIBUTE_PRESENT |\r | |
154 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r | |
155 | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r | |
156 | EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r | |
157 | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r | |
158 | EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |\r | |
159 | EFI_RESOURCE_ATTRIBUTE_TESTED\r | |
160 | );\r | |
161 | \r | |
162 | // If it is not a standalone build we must reserved the space above the base address of the firmware volume\r | |
163 | if (!FeaturePcdGet(PcdStandalone)) {\r | |
164 | // Check if firmware volume has not be copied at the top of DRAM then we must reserve the extra space\r | |
165 | // between the firmware and the top\r | |
166 | if (SystemMemoryTop != FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize)) {\r | |
167 | BuildResourceDescriptorHob (\r | |
168 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
169 | Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),\r | |
170 | FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize),\r | |
171 | SystemMemoryTop - (FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize))\r | |
172 | );\r | |
173 | }\r | |
174 | \r | |
175 | // Reserved the memory space occupied by the firmware volume\r | |
176 | BuildResourceDescriptorHob (\r | |
177 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
178 | Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT),\r | |
179 | (UINT32)FixedPcdGet32 (PcdNormalFdBaseAddress),\r | |
180 | (UINT32)FixedPcdGet32 (PcdNormalFdSize)\r | |
181 | );\r | |
182 | }\r | |
183 | \r | |
184 | // Check there is no overlap between UEFI and Fix Address Regions\r | |
185 | ASSERT (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize) <= UefiMemoryBase);\r | |
186 | \r | |
187 | // Reserved the UEFI Memory Region\r | |
188 | BuildResourceDescriptorHob (\r | |
189 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
190 | Attributes,\r | |
191 | UefiMemoryBase,\r | |
192 | UefiMemorySize\r | |
193 | );\r | |
194 | \r | |
195 | // Reserved the Fix Address Region\r | |
196 | BuildResourceDescriptorHob (\r | |
197 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
198 | Attributes,\r | |
199 | FixedPcdGet32 (PcdSystemMemoryBase),\r | |
200 | FixedPcdGet32 (PcdSystemMemoryFixRegionSize)\r | |
201 | );\r | |
202 | \r | |
203 | // Reserved the memory between UEFI and Fix Address regions\r | |
204 | if (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize) != UefiMemoryBase) {\r | |
205 | BuildResourceDescriptorHob (\r | |
206 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
207 | Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),\r | |
208 | FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize),\r | |
209 | UefiMemoryBase - (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize))\r | |
210 | );\r | |
211 | }\r | |
212 | \r | |
213 | // If a platform has system memory extensions, it can declare those in this function\r | |
214 | Status = ArmPlatformGetAdditionalSystemMemory (&EfiMemoryMap);\r | |
215 | if (!EFI_ERROR(Status)) {\r | |
216 | // Install the EFI Memory Map\r | |
217 | for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {\r | |
218 | BuildResourceDescriptorHob (\r | |
219 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
220 | EfiMemoryMap[Index].ResourceAttribute,\r | |
221 | EfiMemoryMap[Index].PhysicalStart,\r | |
222 | EfiMemoryMap[Index].NumberOfBytes\r | |
223 | );\r | |
224 | }\r | |
225 | FreePool (EfiMemoryMap);\r | |
226 | }\r | |
227 | \r | |
228 | // Build Memory Allocation Hob\r | |
229 | InitMmu ();\r | |
230 | \r | |
231 | if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {\r | |
232 | // Optional feature that helps prevent EFI memory map fragmentation.\r | |
233 | BuildMemoryTypeInformationHob ();\r | |
234 | }\r | |
235 | \r | |
236 | return EFI_SUCCESS;\r | |
237 | }\r |