/** @file\r
*\r
-* Copyright (c) 2011, ARM Limited. All rights reserved.\r
-* \r
-* This program and the accompanying materials \r
-* are licensed and made available under the terms and conditions of the BSD License \r
-* which accompanies this distribution. The full text of the license may be found at \r
-* http://opensource.org/licenses/bsd-license.php \r
+* Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r
*\r
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+* This program and the accompanying materials\r
+* are licensed and made available under the terms and conditions of the BSD License\r
+* which accompanies this distribution. The full text of the license may be found at\r
+* http://opensource.org/licenses/bsd-license.php\r
+*\r
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
*\r
**/\r
\r
#include "BdsInternal.h"\r
\r
-#include <Library/DxeServicesTableLib.h>\r
-#include <Library/HobLib.h>\r
-\r
EFI_STATUS\r
-ShutdownUefiBootServices( VOID )\r
+ShutdownUefiBootServices (\r
+ VOID\r
+ )\r
{\r
EFI_STATUS Status;\r
UINTN MemoryMapSize;\r
\r
MemoryMap = NULL;\r
MemoryMapSize = 0;\r
+ Pages = 0;\r
+\r
do {\r
Status = gBS->GetMemoryMap (\r
&MemoryMapSize,\r
&DescriptorSize,\r
&DescriptorVersion\r
);\r
- // Don't do anything between the GetMemoryMap() and ExitBootServices()\r
- if (!EFI_ERROR (Status)) {\r
- Status = gBS->ExitBootServices (gImageHandle, MapKey);\r
- if (EFI_ERROR (Status)) {\r
- FreePages (MemoryMap, Pages);\r
- MemoryMap = NULL;\r
- MemoryMapSize = 0;\r
- }\r
+ }\r
+\r
+ // Don't do anything between the GetMemoryMap() and ExitBootServices()\r
+ if (!EFI_ERROR(Status)) {\r
+ Status = gBS->ExitBootServices (gImageHandle, MapKey);\r
+ if (EFI_ERROR(Status)) {\r
+ FreePages (MemoryMap, Pages);\r
+ MemoryMap = NULL;\r
+ MemoryMapSize = 0;\r
}\r
}\r
- } while (EFI_ERROR (Status));\r
+ } while (EFI_ERROR(Status));\r
\r
return Status;\r
}\r
\r
-EFI_STATUS\r
-BdsConnectAllDrivers( VOID ) {\r
- UINTN HandleCount, Index;\r
- EFI_HANDLE *HandleBuffer;\r
- EFI_STATUS Status;\r
-\r
- do {\r
- // Locate all the driver handles\r
- Status = gBS->LocateHandleBuffer (\r
- AllHandles,\r
- NULL,\r
- NULL,\r
- &HandleCount,\r
- &HandleBuffer\r
- );\r
- if (EFI_ERROR (Status)) {\r
- break;\r
- }\r
-\r
- // Connect every handles\r
- for (Index = 0; Index < HandleCount; Index++) {\r
- gBS->ConnectController(HandleBuffer[Index], NULL, NULL, TRUE);\r
- }\r
-\r
- if (HandleBuffer != NULL) {\r
- FreePool (HandleBuffer);\r
- }\r
- \r
- // Check if new handles have been created after the start of the previous handles\r
- Status = gDS->Dispatch ();\r
- } while (!EFI_ERROR(Status));\r
-\r
- return EFI_SUCCESS;\r
-}\r
+/**\r
+ Connect all DXE drivers\r
+\r
+ @retval EFI_SUCCESS All drivers have been connected\r
+ @retval EFI_NOT_FOUND No handles match the search.\r
+ @retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.\r
\r
-STATIC\r
+**/\r
EFI_STATUS\r
-InsertSystemMemoryResources (\r
- LIST_ENTRY *ResourceList,\r
- EFI_HOB_RESOURCE_DESCRIPTOR *ResHob\r
+BdsConnectAllDrivers (\r
+ VOID\r
)\r
{\r
- BDS_SYSTEM_MEMORY_RESOURCE *NewResource;\r
- LIST_ENTRY *Link;\r
- LIST_ENTRY *NextLink;\r
- LIST_ENTRY AttachedResources;\r
- BDS_SYSTEM_MEMORY_RESOURCE *Resource;\r
- EFI_PHYSICAL_ADDRESS NewResourceEnd;\r
-\r
- if (IsListEmpty (ResourceList)) {\r
- NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));\r
- NewResource->PhysicalStart = ResHob->PhysicalStart;\r
- NewResource->ResourceLength = ResHob->ResourceLength;\r
- InsertTailList (ResourceList, &NewResource->Link);\r
- return EFI_SUCCESS;\r
- }\r
-\r
- InitializeListHead (&AttachedResources);\r
-\r
- Link = ResourceList->ForwardLink;\r
- ASSERT (Link != NULL);\r
- while (Link != ResourceList) {\r
- Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;\r
-\r
- // Sanity Check. The resources should not overlapped.\r
- ASSERT(!((ResHob->PhysicalStart >= Resource->PhysicalStart) && (ResHob->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))));\r
- ASSERT(!((ResHob->PhysicalStart + ResHob->ResourceLength - 1 >= Resource->PhysicalStart) &&\r
- ((ResHob->PhysicalStart + ResHob->ResourceLength - 1) < (Resource->PhysicalStart + Resource->ResourceLength))));\r
+ UINTN HandleCount, Index;\r
+ EFI_HANDLE *HandleBuffer;\r
+ EFI_STATUS Status;\r
\r
- // The new resource is attached after this resource descriptor\r
- if (ResHob->PhysicalStart == Resource->PhysicalStart + Resource->ResourceLength) {\r
- Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;\r
-\r
- NextLink = RemoveEntryList (&Resource->Link);\r
- InsertTailList (&AttachedResources, &Resource->Link);\r
- Link = NextLink;\r
- }\r
- // The new resource is attached before this resource descriptor\r
- else if (ResHob->PhysicalStart + ResHob->ResourceLength == Resource->PhysicalStart) {\r
- Resource->PhysicalStart = ResHob->PhysicalStart;\r
- Resource->ResourceLength = Resource->ResourceLength + ResHob->ResourceLength;\r
-\r
- NextLink = RemoveEntryList (&Resource->Link);\r
- InsertTailList (&AttachedResources, &Resource->Link);\r
- Link = NextLink;\r
- } else {\r
- Link = Link->ForwardLink;\r
+ do {\r
+ // Locate all the driver handles\r
+ Status = gBS->LocateHandleBuffer (\r
+ AllHandles,\r
+ NULL,\r
+ NULL,\r
+ &HandleCount,\r
+ &HandleBuffer\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ break;\r
}\r
- }\r
\r
- if (!IsListEmpty (&AttachedResources)) {\r
- // See if we can merge the attached resource with other resources\r
-\r
- NewResource = (BDS_SYSTEM_MEMORY_RESOURCE*)GetFirstNode (&AttachedResources);\r
- Link = RemoveEntryList (&NewResource->Link);\r
- while (!IsListEmpty (&AttachedResources)) {\r
- // Merge resources\r
- Resource = (BDS_SYSTEM_MEMORY_RESOURCE*)Link;\r
+ // Connect every handles\r
+ for (Index = 0; Index < HandleCount; Index++) {\r
+ gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);\r
+ }\r
\r
- // Ensure they overlap each other\r
- ASSERT(\r
- ((NewResource->PhysicalStart >= Resource->PhysicalStart) && (NewResource->PhysicalStart < (Resource->PhysicalStart + Resource->ResourceLength))) ||\r
- (((NewResource->PhysicalStart + NewResource->ResourceLength) >= Resource->PhysicalStart) && ((NewResource->PhysicalStart + NewResource->ResourceLength) < (Resource->PhysicalStart + Resource->ResourceLength)))\r
- );\r
+ if (HandleBuffer != NULL) {\r
+ FreePool (HandleBuffer);\r
+ }\r
\r
- NewResourceEnd = MAX (NewResource->PhysicalStart + NewResource->ResourceLength, Resource->PhysicalStart + Resource->ResourceLength);\r
- NewResource->PhysicalStart = MIN (NewResource->PhysicalStart, Resource->PhysicalStart);\r
- NewResource->ResourceLength = NewResourceEnd - NewResource->PhysicalStart;\r
+ // Check if new handles have been created after the start of the previous handles\r
+ Status = gDS->Dispatch ();\r
+ } while (!EFI_ERROR(Status));\r
\r
- Link = RemoveEntryList (Link);\r
- }\r
- } else {\r
- // None of the Resource of the list is attached to this ResHob. Create a new entry for it\r
- NewResource = AllocateZeroPool (sizeof(BDS_SYSTEM_MEMORY_RESOURCE));\r
- NewResource->PhysicalStart = ResHob->PhysicalStart;\r
- NewResource->ResourceLength = ResHob->ResourceLength;\r
- }\r
- InsertTailList (ResourceList, &NewResource->Link);\r
return EFI_SUCCESS;\r
}\r
\r
EFI_STATUS\r
-GetSystemMemoryResources (\r
- IN LIST_ENTRY *ResourceList\r
+GetGlobalEnvironmentVariable (\r
+ IN CONST CHAR16* VariableName,\r
+ IN VOID* DefaultValue,\r
+ IN OUT UINTN* Size,\r
+ OUT VOID** Value\r
)\r
{\r
- EFI_HOB_RESOURCE_DESCRIPTOR *ResHob;\r
-\r
- InitializeListHead (ResourceList);\r
+ return GetEnvironmentVariable (VariableName, &gEfiGlobalVariableGuid,\r
+ DefaultValue, Size, Value);\r
+}\r
\r
- // Find the first System Memory Resource Descriptor\r
- ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetFirstHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR);\r
- while ((ResHob != NULL) && (ResHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY)) {\r
- ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r
- }\r
+EFI_STATUS\r
+GetEnvironmentVariable (\r
+ IN CONST CHAR16* VariableName,\r
+ IN EFI_GUID* VendorGuid,\r
+ IN VOID* DefaultValue,\r
+ IN OUT UINTN* Size,\r
+ OUT VOID** Value\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN VariableSize;\r
+\r
+ // Try to get the variable size.\r
+ *Value = NULL;\r
+ VariableSize = 0;\r
+ Status = gRT->GetVariable ((CHAR16 *) VariableName, VendorGuid, NULL, &VariableSize, *Value);\r
+ if (Status == EFI_NOT_FOUND) {\r
+ if ((DefaultValue != NULL) && (Size != NULL) && (*Size != 0)) {\r
+ // If the environment variable does not exist yet then set it with the default value\r
+ Status = gRT->SetVariable (\r
+ (CHAR16*)VariableName,\r
+ VendorGuid,\r
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
+ *Size,\r
+ DefaultValue\r
+ );\r
+ *Value = AllocateCopyPool (*Size, DefaultValue);\r
+ } else {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ } else if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ // Get the environment variable value\r
+ *Value = AllocatePool (VariableSize);\r
+ if (*Value == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
\r
- // Did not find any\r
- if (ResHob == NULL) {\r
- return EFI_NOT_FOUND;\r
- } else {\r
- InsertSystemMemoryResources (ResourceList, ResHob);\r
- }\r
+ Status = gRT->GetVariable ((CHAR16 *)VariableName, VendorGuid, NULL, &VariableSize, *Value);\r
+ if (EFI_ERROR (Status)) {\r
+ FreePool(*Value);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
\r
- ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r
- while (ResHob != NULL) {\r
- if (ResHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {\r
- InsertSystemMemoryResources (ResourceList, ResHob);\r
+ if (Size) {\r
+ *Size = VariableSize;\r
}\r
- ResHob = (EFI_HOB_RESOURCE_DESCRIPTOR *)GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,(VOID *)((UINTN)ResHob + ResHob->Header.HobLength));\r
+ } else {\r
+ *Value = AllocateCopyPool (*Size, DefaultValue);\r
+ return Status;\r
}\r
\r
return EFI_SUCCESS;\r
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