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1e57a462 | 1 | /** @file\r |
2 | *\r | |
c0b2e477 | 3 | * Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r |
1e57a462 | 4 | *\r |
c0b2e477 | 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 | |
1e57a462 | 12 | *\r |
13 | **/\r | |
14 | \r | |
15 | #include "BdsInternal.h"\r | |
16 | \r | |
1e57a462 | 17 | #include <Library/HobLib.h>\r |
18 | #include <Library/TimerLib.h>\r | |
19 | #include <Library/PrintLib.h>\r | |
20 | #include <Library/SerialPortLib.h>\r | |
21 | \r | |
22 | STATIC CHAR8 *mTokenList[] = {\r | |
23 | /*"SEC",*/\r | |
24 | "PEI",\r | |
25 | "DXE",\r | |
26 | "BDS",\r | |
27 | NULL\r | |
28 | };\r | |
29 | \r | |
30 | EFI_STATUS\r | |
31 | ShutdownUefiBootServices (\r | |
32 | VOID\r | |
33 | )\r | |
34 | {\r | |
35 | EFI_STATUS Status;\r | |
36 | UINTN MemoryMapSize;\r | |
37 | EFI_MEMORY_DESCRIPTOR *MemoryMap;\r | |
38 | UINTN MapKey;\r | |
39 | UINTN DescriptorSize;\r | |
40 | UINT32 DescriptorVersion;\r | |
41 | UINTN Pages;\r | |
42 | \r | |
43 | MemoryMap = NULL;\r | |
44 | MemoryMapSize = 0;\r | |
45 | Pages = 0;\r | |
46 | \r | |
47 | do {\r | |
48 | Status = gBS->GetMemoryMap (\r | |
49 | &MemoryMapSize,\r | |
50 | MemoryMap,\r | |
51 | &MapKey,\r | |
52 | &DescriptorSize,\r | |
53 | &DescriptorVersion\r | |
54 | );\r | |
55 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
56 | \r | |
57 | Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1;\r | |
58 | MemoryMap = AllocatePages (Pages);\r | |
59 | \r | |
60 | //\r | |
61 | // Get System MemoryMap\r | |
62 | //\r | |
63 | Status = gBS->GetMemoryMap (\r | |
64 | &MemoryMapSize,\r | |
65 | MemoryMap,\r | |
66 | &MapKey,\r | |
67 | &DescriptorSize,\r | |
68 | &DescriptorVersion\r | |
69 | );\r | |
70 | }\r | |
71 | \r | |
72 | // Don't do anything between the GetMemoryMap() and ExitBootServices()\r | |
73 | if (!EFI_ERROR(Status)) {\r | |
74 | Status = gBS->ExitBootServices (gImageHandle, MapKey);\r | |
75 | if (EFI_ERROR(Status)) {\r | |
76 | FreePages (MemoryMap, Pages);\r | |
77 | MemoryMap = NULL;\r | |
78 | MemoryMapSize = 0;\r | |
79 | }\r | |
80 | }\r | |
81 | } while (EFI_ERROR(Status));\r | |
82 | \r | |
83 | return Status;\r | |
84 | }\r | |
85 | \r | |
86 | /**\r | |
87 | Connect all DXE drivers\r | |
88 | \r | |
89 | @retval EFI_SUCCESS All drivers have been connected\r | |
90 | @retval EFI_NOT_FOUND No handles match the search.\r | |
91 | @retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.\r | |
92 | \r | |
93 | **/\r | |
94 | EFI_STATUS\r | |
95 | BdsConnectAllDrivers (\r | |
96 | VOID\r | |
97 | )\r | |
98 | {\r | |
99 | UINTN HandleCount, Index;\r | |
100 | EFI_HANDLE *HandleBuffer;\r | |
101 | EFI_STATUS Status;\r | |
102 | \r | |
103 | do {\r | |
104 | // Locate all the driver handles\r | |
105 | Status = gBS->LocateHandleBuffer (\r | |
106 | AllHandles,\r | |
107 | NULL,\r | |
108 | NULL,\r | |
109 | &HandleCount,\r | |
110 | &HandleBuffer\r | |
111 | );\r | |
112 | if (EFI_ERROR (Status)) {\r | |
113 | break;\r | |
114 | }\r | |
115 | \r | |
116 | // Connect every handles\r | |
117 | for (Index = 0; Index < HandleCount; Index++) {\r | |
118 | gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);\r | |
119 | }\r | |
120 | \r | |
121 | if (HandleBuffer != NULL) {\r | |
122 | FreePool (HandleBuffer);\r | |
123 | }\r | |
124 | \r | |
125 | // Check if new handles have been created after the start of the previous handles\r | |
126 | Status = gDS->Dispatch ();\r | |
127 | } while (!EFI_ERROR(Status));\r | |
128 | \r | |
129 | return EFI_SUCCESS;\r | |
130 | }\r | |
131 | \r | |
132 | STATIC\r | |
133 | EFI_STATUS\r | |
134 | InsertSystemMemoryResources (\r | |
135 | LIST_ENTRY *ResourceList,\r | |
136 | EFI_HOB_RESOURCE_DESCRIPTOR *ResHob\r | |
137 | )\r | |
138 | {\r | |
139 | BDS_SYSTEM_MEMORY_RESOURCE *NewResource;\r | |
140 | LIST_ENTRY *Link;\r | |
141 | LIST_ENTRY *NextLink;\r | |
142 | LIST_ENTRY AttachedResources;\r | |
143 | BDS_SYSTEM_MEMORY_RESOURCE *Resource;\r | |
144 | EFI_PHYSICAL_ADDRESS NewResourceEnd;\r | |
145 | \r | |
146 | if (IsListEmpty (ResourceList)) {\r | |
147 | NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));\r | |
148 | NewResource->PhysicalStart = ResHob->PhysicalStart;\r | |
149 | NewResource->ResourceLength = ResHob->ResourceLength;\r | |
150 | InsertTailList (ResourceList, &NewResource->Link);\r | |
151 | return EFI_SUCCESS;\r | |
152 | }\r | |
153 | \r | |
154 | InitializeListHead (&AttachedResources);\r | |
155 | \r | |
156 | Link = ResourceList->ForwardLink;\r | |
157 | ASSERT (Link != NULL);\r | |
158 | while (Link != ResourceList) {\r | |
159 | Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;\r | |
160 | \r | |
161 | // Sanity Check. The resources should not overlapped.\r | |
162 | ASSERT(!((ResHob->PhysicalStart >= Resource->PhysicalStart) && (ResHob->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))));\r | |
163 | ASSERT(!((ResHob->PhysicalStart + ResHob->ResourceLength - 1 >= Resource->PhysicalStart) &&\r | |
164 | ((ResHob->PhysicalStart + ResHob->ResourceLength - 1) < (Resource->PhysicalStart + Resource->ResourceLength))));\r | |
165 | \r | |
166 | // The new resource is attached after this resource descriptor\r | |
167 | if (ResHob->PhysicalStart == Resource->PhysicalStart + Resource->ResourceLength) {\r | |
168 | Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;\r | |
169 | \r | |
170 | NextLink = RemoveEntryList (&Resource->Link);\r | |
171 | InsertTailList (&AttachedResources, &Resource->Link);\r | |
172 | Link = NextLink;\r | |
173 | }\r | |
174 | // The new resource is attached before this resource descriptor\r | |
175 | else if (ResHob->PhysicalStart + ResHob->ResourceLength == Resource->PhysicalStart) {\r | |
176 | Resource->PhysicalStart = ResHob->PhysicalStart;\r | |
177 | Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;\r | |
178 | \r | |
179 | NextLink = RemoveEntryList (&Resource->Link);\r | |
180 | InsertTailList (&AttachedResources, &Resource->Link);\r | |
181 | Link = NextLink;\r | |
182 | } else {\r | |
183 | Link = Link->ForwardLink;\r | |
184 | }\r | |
185 | }\r | |
186 | \r | |
187 | if (!IsListEmpty (&AttachedResources)) {\r | |
188 | // See if we can merge the attached resource with other resources\r | |
189 | \r | |
190 | NewResource = (BDS_SYSTEM_MEMORY_RESOURCE*)GetFirstNode (&AttachedResources);\r | |
191 | Link = RemoveEntryList (&NewResource->Link);\r | |
192 | while (!IsListEmpty (&AttachedResources)) {\r | |
193 | // Merge resources\r | |
194 | Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;\r | |
195 | \r | |
196 | // Ensure they overlap each other\r | |
197 | ASSERT(\r | |
198 | ((NewResource->PhysicalStart >= Resource->PhysicalStart) && (NewResource->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))) ||\r | |
199 | (((NewResource->PhysicalStart + NewResource->ResourceLength) >= Resource->PhysicalStart) && ((NewResource->PhysicalStart + NewResource->ResourceLength) < (Resource->PhysicalStart + Resource->ResourceLength)))\r | |
200 | );\r | |
201 | \r | |
202 | NewResourceEnd = MAX (NewResource->PhysicalStart + NewResource->ResourceLength, Resource->PhysicalStart + Resource->ResourceLength);\r | |
203 | NewResource->PhysicalStart = MIN (NewResource->PhysicalStart, Resource->PhysicalStart);\r | |
204 | NewResource->ResourceLength = NewResourceEnd - NewResource->PhysicalStart;\r | |
205 | \r | |
206 | Link = RemoveEntryList (Link);\r | |
207 | }\r | |
208 | } else {\r | |
209 | // None of the Resource of the list is attached to this ResHob. Create a new entry for it\r | |
210 | NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));\r | |
211 | NewResource->PhysicalStart = ResHob->PhysicalStart;\r | |
212 | NewResource->ResourceLength = ResHob->ResourceLength;\r | |
213 | }\r | |
214 | InsertTailList (ResourceList, &NewResource->Link);\r | |
215 | return EFI_SUCCESS;\r | |
216 | }\r | |
217 | \r | |
218 | EFI_STATUS\r | |
219 | GetSystemMemoryResources (\r | |
220 | IN LIST_ENTRY *ResourceList\r | |
221 | )\r | |
222 | {\r | |
223 | EFI_HOB_RESOURCE_DESCRIPTOR *ResHob;\r | |
224 | \r | |
225 | InitializeListHead (ResourceList);\r | |
226 | \r | |
227 | // Find the first System Memory Resource Descriptor\r | |
228 | ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetFirstHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR);\r | |
229 | while ((ResHob != NULL) && (ResHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY)) {\r | |
230 | ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r | |
231 | }\r | |
232 | \r | |
233 | // Did not find any\r | |
234 | if (ResHob == NULL) {\r | |
235 | return EFI_NOT_FOUND;\r | |
236 | } else {\r | |
237 | InsertSystemMemoryResources (ResourceList, ResHob);\r | |
238 | }\r | |
239 | \r | |
240 | ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r | |
241 | while (ResHob != NULL) {\r | |
242 | if (ResHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {\r | |
243 | InsertSystemMemoryResources (ResourceList, ResHob);\r | |
244 | }\r | |
245 | ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r | |
246 | }\r | |
247 | \r | |
248 | return EFI_SUCCESS;\r | |
249 | }\r | |
250 | \r | |
251 | VOID\r | |
252 | PrintPerformance (\r | |
253 | VOID\r | |
254 | )\r | |
255 | {\r | |
256 | UINTN Key;\r | |
257 | CONST VOID *Handle;\r | |
258 | CONST CHAR8 *Token, *Module;\r | |
259 | UINT64 Start, Stop, TimeStamp;\r | |
260 | UINT64 Delta, TicksPerSecond, Milliseconds;\r | |
261 | UINTN Index;\r | |
262 | CHAR8 Buffer[100];\r | |
263 | UINTN CharCount;\r | |
264 | BOOLEAN CountUp;\r | |
265 | \r | |
266 | TicksPerSecond = GetPerformanceCounterProperties (&Start, &Stop);\r | |
267 | if (Start < Stop) {\r | |
268 | CountUp = TRUE;\r | |
269 | } else {\r | |
270 | CountUp = FALSE;\r | |
271 | }\r | |
272 | \r | |
273 | TimeStamp = 0;\r | |
274 | Key = 0;\r | |
275 | do {\r | |
276 | Key = GetPerformanceMeasurement (Key, (CONST VOID **)&Handle, &Token, &Module, &Start, &Stop);\r | |
277 | if (Key != 0) {\r | |
278 | for (Index = 0; mTokenList[Index] != NULL; Index++) {\r | |
279 | if (AsciiStriCmp (mTokenList[Index], Token) == 0) {\r | |
280 | Delta = CountUp?(Stop - Start):(Start - Stop);\r | |
281 | TimeStamp += Delta;\r | |
282 | Milliseconds = DivU64x64Remainder (MultU64x32 (Delta, 1000), TicksPerSecond, NULL);\r | |
283 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"%6a %6ld ms\n", Token, Milliseconds);\r | |
284 | SerialPortWrite ((UINT8 *) Buffer, CharCount);\r | |
285 | break;\r | |
286 | }\r | |
287 | }\r | |
288 | }\r | |
289 | } while (Key != 0);\r | |
290 | \r | |
291 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Total Time = %ld ms\n\n", DivU64x64Remainder (MultU64x32 (TimeStamp, 1000), TicksPerSecond, NULL));\r | |
292 | SerialPortWrite ((UINT8 *) Buffer, CharCount);\r | |
293 | }\r | |
294 | \r | |
c0b2e477 | 295 | EFI_STATUS\r |
296 | GetGlobalEnvironmentVariable (\r | |
297 | IN CONST CHAR16* VariableName,\r | |
298 | IN VOID* DefaultValue,\r | |
299 | IN OUT UINTN* Size,\r | |
300 | OUT VOID** Value\r | |
301 | )\r | |
302 | {\r | |
303 | return GetEnvironmentVariable (VariableName, &gEfiGlobalVariableGuid,\r | |
304 | DefaultValue, Size, Value);\r | |
305 | }\r | |
306 | \r | |
1e57a462 | 307 | EFI_STATUS\r |
308 | GetEnvironmentVariable (\r | |
309 | IN CONST CHAR16* VariableName,\r | |
c0b2e477 | 310 | IN EFI_GUID* VendorGuid,\r |
1e57a462 | 311 | IN VOID* DefaultValue,\r |
312 | IN OUT UINTN* Size,\r | |
313 | OUT VOID** Value\r | |
314 | )\r | |
315 | {\r | |
316 | EFI_STATUS Status;\r | |
317 | UINTN VariableSize;\r | |
318 | \r | |
319 | // Try to get the variable size.\r | |
320 | *Value = NULL;\r | |
321 | VariableSize = 0;\r | |
c0b2e477 | 322 | Status = gRT->GetVariable ((CHAR16 *) VariableName, VendorGuid, NULL, &VariableSize, *Value);\r |
1e57a462 | 323 | if (Status == EFI_NOT_FOUND) {\r |
324 | if ((DefaultValue != NULL) && (Size != NULL) && (*Size != 0)) {\r | |
325 | // If the environment variable does not exist yet then set it with the default value\r | |
326 | Status = gRT->SetVariable (\r | |
327 | (CHAR16*)VariableName,\r | |
c0b2e477 | 328 | VendorGuid,\r |
1e57a462 | 329 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r |
330 | *Size,\r | |
331 | DefaultValue\r | |
332 | );\r | |
d8dc9f0a | 333 | *Value = AllocateCopyPool (*Size, DefaultValue);\r |
1e57a462 | 334 | } else {\r |
335 | return EFI_NOT_FOUND;\r | |
336 | }\r | |
337 | } else if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
338 | // Get the environment variable value\r | |
339 | *Value = AllocatePool (VariableSize);\r | |
340 | if (*Value == NULL) {\r | |
341 | return EFI_OUT_OF_RESOURCES;\r | |
342 | }\r | |
343 | \r | |
c0b2e477 | 344 | Status = gRT->GetVariable ((CHAR16 *)VariableName, VendorGuid, NULL, &VariableSize, *Value);\r |
1e57a462 | 345 | if (EFI_ERROR (Status)) {\r |
346 | FreePool(*Value);\r | |
347 | return EFI_INVALID_PARAMETER;\r | |
348 | }\r | |
349 | \r | |
350 | if (Size) {\r | |
351 | *Size = VariableSize;\r | |
352 | }\r | |
353 | } else {\r | |
d8dc9f0a | 354 | *Value = AllocateCopyPool (*Size, DefaultValue);\r |
1e57a462 | 355 | return Status;\r |
356 | }\r | |
357 | \r | |
358 | return EFI_SUCCESS;\r | |
359 | }\r |