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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 | MemoryServices.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | EFI PEI Core memory services\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | #include <PeiMain.h>\r | |
23 | \r | |
24 | VOID\r | |
25 | InitializeMemoryServices (\r | |
26 | IN EFI_PEI_SERVICES **PeiServices,\r | |
27 | IN EFI_PEI_STARTUP_DESCRIPTOR *PeiStartupDescriptor,\r | |
28 | IN PEI_CORE_INSTANCE *OldCoreData\r | |
29 | )\r | |
30 | /*++\r | |
31 | \r | |
32 | Routine Description:\r | |
33 | \r | |
34 | Initialize the memory services.\r | |
35 | \r | |
36 | Arguments:\r | |
37 | \r | |
38 | PeiServices - The PEI core services table.\r | |
39 | PeiStartupDescriptor - Information and services provided by SEC phase.\r | |
40 | OldCoreData - Pointer to the PEI Core data.\r | |
41 | NULL if being run in non-permament memory mode.\r | |
42 | \r | |
43 | Returns:\r | |
44 | \r | |
45 | None\r | |
46 | \r | |
47 | --*/\r | |
48 | {\r | |
49 | PEI_CORE_INSTANCE *PrivateData;\r | |
50 | UINT64 SizeOfCarHeap;\r | |
51 | \r | |
52 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r | |
53 | PrivateData->SwitchStackSignal = FALSE;\r | |
54 | \r | |
55 | if (OldCoreData == NULL) {\r | |
56 | \r | |
57 | PrivateData->PeiMemoryInstalled = FALSE;\r | |
58 | \r | |
59 | PrivateData->BottomOfCarHeap = (VOID *) (((UINTN)(VOID *)(&PrivateData))\r | |
60 | & (~((PeiStartupDescriptor->SizeOfCacheAsRam) - 1))); \r | |
61 | PrivateData->TopOfCarHeap = (VOID *)((UINTN)(PrivateData->BottomOfCarHeap) + PeiStartupDescriptor->SizeOfCacheAsRam);\r | |
62 | //\r | |
63 | // SizeOfCarHeap is 1/2 (arbitrary) of CacheAsRam Size.\r | |
64 | //\r | |
65 | SizeOfCarHeap = (UINT64) PeiStartupDescriptor->SizeOfCacheAsRam;\r | |
66 | SizeOfCarHeap = RShiftU64 (SizeOfCarHeap, 1);\r | |
67 | \r | |
68 | DEBUG_CODE (\r | |
69 | PrivateData->SizeOfCacheAsRam = PeiStartupDescriptor->SizeOfCacheAsRam;\r | |
70 | PrivateData->MaxTopOfCarHeap = (VOID *) ((UINTN) PrivateData->BottomOfCarHeap + (UINTN) SizeOfCarHeap);\r | |
71 | );\r | |
72 | \r | |
73 | PrivateData->HobList.Raw = PrivateData->BottomOfCarHeap;\r | |
74 | \r | |
75 | PeiCoreBuildHobHandoffInfoTable (\r | |
76 | BOOT_WITH_FULL_CONFIGURATION,\r | |
77 | (EFI_PHYSICAL_ADDRESS) (UINTN) PrivateData->BottomOfCarHeap,\r | |
78 | (UINTN) SizeOfCarHeap\r | |
79 | );\r | |
80 | //\r | |
81 | // Copy PeiServices from ROM to Cache in PrivateData\r | |
82 | //\r | |
83 | CopyMem (&(PrivateData->ServiceTableShadow), *PeiServices, sizeof (EFI_PEI_SERVICES));\r | |
84 | \r | |
85 | //\r | |
86 | // Set PS to point to ServiceTableShadow in Cache\r | |
87 | //\r | |
88 | PrivateData->PS = &(PrivateData->ServiceTableShadow);\r | |
89 | } else {\r | |
90 | // \r | |
91 | // Set PS to point to ServiceTableShadow in Cache one time after the \r | |
92 | // stack switched to main memory \r | |
93 | // \r | |
94 | PrivateData->PS = &(PrivateData->ServiceTableShadow); \r | |
95 | } \r | |
96 | \r | |
97 | return;\r | |
98 | }\r | |
99 | \r | |
100 | EFI_STATUS\r | |
101 | EFIAPI\r | |
102 | PeiInstallPeiMemory (\r | |
103 | IN EFI_PEI_SERVICES **PeiServices,\r | |
104 | IN EFI_PHYSICAL_ADDRESS MemoryBegin,\r | |
105 | IN UINT64 MemoryLength\r | |
106 | )\r | |
107 | /*++\r | |
108 | \r | |
109 | Routine Description:\r | |
110 | \r | |
111 | Install the permanent memory is now available.\r | |
112 | Creates HOB (PHIT and Stack).\r | |
113 | \r | |
114 | Arguments:\r | |
115 | \r | |
116 | PeiServices - The PEI core services table.\r | |
117 | MemoryBegin - Start of memory address.\r | |
118 | MemoryLength - Length of memory.\r | |
119 | \r | |
120 | Returns:\r | |
121 | \r | |
122 | Status - EFI_SUCCESS\r | |
123 | \r | |
124 | --*/\r | |
125 | {\r | |
126 | PEI_CORE_INSTANCE *PrivateData;\r | |
127 | EFI_HOB_HANDOFF_INFO_TABLE *OldHandOffHob;\r | |
128 | EFI_HOB_HANDOFF_INFO_TABLE *NewHandOffHob;\r | |
129 | UINT64 PeiStackSize;\r | |
130 | UINT64 EfiFreeMemorySize;\r | |
131 | EFI_PHYSICAL_ADDRESS PhysicalAddressOfOldHob;\r | |
132 | \r | |
133 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r | |
134 | \r | |
135 | PrivateData->SwitchStackSignal = TRUE;\r | |
136 | PrivateData->PeiMemoryInstalled = TRUE;\r | |
137 | \r | |
138 | PrivateData->StackBase = MemoryBegin;\r | |
139 | \r | |
140 | PeiStackSize = RShiftU64 (MemoryLength, 1);\r | |
141 | if (PEI_STACK_SIZE > PeiStackSize) {\r | |
142 | PrivateData->StackSize = PeiStackSize;\r | |
143 | } else {\r | |
144 | PrivateData->StackSize = PEI_STACK_SIZE;\r | |
145 | }\r | |
146 | \r | |
147 | OldHandOffHob = PrivateData->HobList.HandoffInformationTable;\r | |
148 | \r | |
149 | PrivateData->HobList.Raw = (VOID *)((UINTN)(MemoryBegin + PrivateData->StackSize));\r | |
150 | NewHandOffHob = PrivateData->HobList.HandoffInformationTable;\r | |
151 | PhysicalAddressOfOldHob = (EFI_PHYSICAL_ADDRESS) (UINTN) OldHandOffHob;\r | |
152 | \r | |
153 | EfiFreeMemorySize = OldHandOffHob->EfiFreeMemoryBottom - PhysicalAddressOfOldHob;\r | |
154 | \r | |
155 | DEBUG ((EFI_D_INFO, "HOBLIST address before memory init = 0x%08x\n", OldHandOffHob));\r | |
156 | DEBUG ((EFI_D_INFO, "HOBLIST address after memory init = 0x%08x\n", NewHandOffHob));\r | |
157 | \r | |
158 | CopyMem (\r | |
159 | NewHandOffHob,\r | |
160 | OldHandOffHob,\r | |
161 | (UINTN)EfiFreeMemorySize\r | |
162 | );\r | |
163 | \r | |
164 | NewHandOffHob->EfiMemoryTop = MemoryBegin + MemoryLength;\r | |
165 | NewHandOffHob->EfiFreeMemoryTop = NewHandOffHob->EfiMemoryTop;\r | |
166 | NewHandOffHob->EfiMemoryBottom = MemoryBegin;\r | |
167 | \r | |
168 | NewHandOffHob->EfiFreeMemoryBottom = (UINTN)NewHandOffHob + EfiFreeMemorySize; \r | |
169 | \r | |
170 | NewHandOffHob->EfiEndOfHobList = (UINTN)NewHandOffHob +\r | |
171 | (OldHandOffHob->EfiEndOfHobList -\r | |
172 | PhysicalAddressOfOldHob);\r | |
173 | \r | |
174 | ConvertPpiPointers (PeiServices, OldHandOffHob, NewHandOffHob);\r | |
175 | \r | |
176 | BuildStackHob (PrivateData->StackBase, PrivateData->StackSize);\r | |
177 | \r | |
178 | \r | |
179 | return EFI_SUCCESS; \r | |
180 | }\r | |
181 | \r | |
182 | EFI_STATUS\r | |
183 | EFIAPI\r | |
184 | PeiAllocatePages (\r | |
185 | IN EFI_PEI_SERVICES **PeiServices,\r | |
186 | IN EFI_MEMORY_TYPE MemoryType,\r | |
187 | IN UINTN Pages,\r | |
188 | OUT EFI_PHYSICAL_ADDRESS *Memory\r | |
189 | )\r | |
190 | /*++\r | |
191 | \r | |
192 | Routine Description:\r | |
193 | \r | |
194 | Memory allocation service on permanent memory, \r | |
195 | not usable prior to the memory installation.\r | |
196 | \r | |
197 | Arguments:\r | |
198 | \r | |
199 | PeiServices - The PEI core services table.\r | |
200 | MemoryType - Type of memory to allocate.\r | |
201 | Pages - Number of pages to allocate.\r | |
202 | Memory - Pointer of memory allocated.\r | |
203 | \r | |
204 | Returns:\r | |
205 | \r | |
206 | Status - EFI_SUCCESS The allocation was successful\r | |
207 | EFI_INVALID_PARAMETER Only AllocateAnyAddress is supported.\r | |
208 | EFI_NOT_AVAILABLE_YET Called with permanent memory not available\r | |
209 | EFI_OUT_OF_RESOURCES There is not enough HOB heap to satisfy the requirement\r | |
210 | to allocate the number of pages.\r | |
211 | \r | |
212 | --*/\r | |
213 | {\r | |
214 | PEI_CORE_INSTANCE *PrivateData;\r | |
215 | EFI_PEI_HOB_POINTERS Hob;\r | |
216 | EFI_PHYSICAL_ADDRESS Offset;\r | |
217 | \r | |
218 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r | |
219 | \r | |
220 | //\r | |
221 | // Check if Hob already available\r | |
222 | //\r | |
223 | if (!PrivateData->PeiMemoryInstalled) {\r | |
224 | return EFI_NOT_AVAILABLE_YET;\r | |
225 | }\r | |
226 | \r | |
227 | Hob.Raw = PrivateData->HobList.Raw;\r | |
228 | \r | |
229 | //\r | |
230 | // Check to see if on 4k boundary\r | |
231 | //\r | |
232 | Offset = Hob.HandoffInformationTable->EfiFreeMemoryTop & 0xFFF;\r | |
233 | \r | |
234 | //\r | |
235 | // If not aligned, make the allocation aligned.\r | |
236 | //\r | |
237 | if (Offset != 0) {\r | |
238 | Hob.HandoffInformationTable->EfiFreeMemoryTop -= Offset;\r | |
239 | }\r | |
240 | \r | |
241 | //\r | |
242 | // Verify that there is sufficient memory to satisfy the allocation\r | |
243 | //\r | |
244 | if (Hob.HandoffInformationTable->EfiFreeMemoryTop - ((Pages * EFI_PAGE_SIZE) + sizeof (EFI_HOB_MEMORY_ALLOCATION)) < \r | |
245 | Hob.HandoffInformationTable->EfiFreeMemoryBottom) {\r | |
246 | return EFI_OUT_OF_RESOURCES;\r | |
247 | } else {\r | |
248 | //\r | |
249 | // Update the PHIT to reflect the memory usage\r | |
250 | //\r | |
251 | Hob.HandoffInformationTable->EfiFreeMemoryTop -= Pages * EFI_PAGE_SIZE;\r | |
252 | \r | |
253 | //\r | |
254 | // Update the value for the caller\r | |
255 | //\r | |
256 | *Memory = Hob.HandoffInformationTable->EfiFreeMemoryTop;\r | |
257 | \r | |
258 | //\r | |
259 | // Create a memory allocation HOB.\r | |
260 | //\r | |
261 | BuildMemoryAllocationHob (\r | |
262 | Hob.HandoffInformationTable->EfiFreeMemoryTop,\r | |
263 | Pages * EFI_PAGE_SIZE + Offset,\r | |
264 | MemoryType\r | |
265 | );\r | |
266 | \r | |
267 | return EFI_SUCCESS;\r | |
268 | }\r | |
269 | }\r | |
270 | \r | |
271 | \r | |
272 | EFI_STATUS\r | |
273 | EFIAPI\r | |
274 | PeiAllocatePool (\r | |
275 | IN EFI_PEI_SERVICES **PeiServices,\r | |
276 | IN UINTN Size,\r | |
277 | OUT VOID **Buffer\r | |
278 | )\r | |
279 | /*++\r | |
280 | \r | |
281 | Routine Description:\r | |
282 | \r | |
283 | Memory allocation service on the CAR. \r | |
284 | \r | |
285 | Arguments:\r | |
286 | \r | |
287 | PeiServices - The PEI core services table.\r | |
288 | \r | |
289 | Size - Amount of memory required\r | |
290 | \r | |
291 | Buffer - Address of pointer to the buffer\r | |
292 | \r | |
293 | Returns:\r | |
294 | \r | |
295 | Status - EFI_SUCCESS The allocation was successful\r | |
296 | EFI_OUT_OF_RESOURCES There is not enough heap to satisfy the requirement\r | |
297 | to allocate the requested size.\r | |
298 | \r | |
299 | --*/\r | |
300 | {\r | |
301 | EFI_STATUS Status;\r | |
302 | EFI_HOB_MEMORY_POOL *Hob;\r | |
303 | \r | |
304 | \r | |
305 | Status = PeiCoreCreateHob (\r | |
306 | EFI_HOB_TYPE_PEI_MEMORY_POOL,\r | |
307 | (UINT16)(sizeof (EFI_HOB_MEMORY_POOL) + Size),\r | |
308 | (VOID **)&Hob\r | |
309 | );\r | |
310 | *Buffer = Hob+1; \r | |
311 | \r | |
312 | \r | |
313 | return Status;\r | |
314 | }\r |