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44788bae | 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 | #include <Library/UefiBootServicesTableLib.h>\r | |
16 | #include <Library/BaseMemoryLib.h>\r | |
17 | #include <Library/HobLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/MemoryAllocationLib.h>\r | |
20 | \r | |
21 | #include <Guid/ArmMpCoreInfo.h>\r | |
22 | \r | |
23 | ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = {\r | |
24 | {\r | |
25 | EFI_ARM_PROCESSOR_TABLE_SIGNATURE,\r | |
26 | 0,\r | |
27 | EFI_ARM_PROCESSOR_TABLE_REVISION,\r | |
28 | EFI_ARM_PROCESSOR_TABLE_OEM_ID,\r | |
29 | EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID,\r | |
30 | EFI_ARM_PROCESSOR_TABLE_OEM_REVISION,\r | |
31 | EFI_ARM_PROCESSOR_TABLE_CREATOR_ID,\r | |
32 | EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION,\r | |
33 | 0,\r | |
34 | 0\r | |
35 | }, //ARM Processor table header\r | |
36 | 0, // Number of entries in ARM processor Table\r | |
37 | NULL // ARM Processor Table\r | |
38 | };\r | |
39 | \r | |
40 | /** Publish ARM Processor Data table in UEFI SYSTEM Table.\r | |
41 | * @param: HobStart Pointer to the beginning of the HOB List from PEI.\r | |
42 | *\r | |
43 | * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.\r | |
44 | * If the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory\r | |
45 | * and a pointer is assigned to it in ARM processor table. Then the ARM processor table is\r | |
46 | * installed in EFI configuration table.\r | |
47 | **/\r | |
48 | VOID\r | |
49 | EFIAPI\r | |
50 | PublishArmProcessorTable (\r | |
51 | VOID\r | |
52 | )\r | |
53 | {\r | |
54 | EFI_PEI_HOB_POINTERS Hob;\r | |
55 | \r | |
56 | Hob.Raw = GetHobList ();\r | |
57 | \r | |
58 | // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB\r | |
59 | for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r | |
60 | // Check for Correct HOB type\r | |
61 | if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {\r | |
62 | // Check for correct GUID type\r | |
63 | if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) {\r | |
64 | ARM_PROCESSOR_TABLE *ArmProcessorTable;\r | |
65 | EFI_STATUS Status;\r | |
66 | \r | |
67 | // Allocate Runtime memory for ARM processor table\r | |
68 | ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE));\r | |
69 | \r | |
70 | // Check if the memory allocation is succesful or not\r | |
71 | ASSERT(NULL != ArmProcessorTable);\r | |
72 | \r | |
73 | // Set ARM processor table to default values\r | |
74 | CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE));\r | |
75 | \r | |
76 | // Fill in Length fields of ARM processor table\r | |
77 | ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE);\r | |
78 | ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob);\r | |
79 | \r | |
80 | // Fill in Identifier(ARM processor table GUID)\r | |
81 | ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid;\r | |
82 | \r | |
83 | // Set Number of ARM core entries in the Table\r | |
84 | ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO);\r | |
85 | \r | |
86 | // Allocate runtime memory for ARM processor Table entries\r | |
87 | ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool (\r | |
88 | ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO));\r | |
89 | \r | |
90 | // Check if the memory allocation is succesful or not\r | |
91 | ASSERT(NULL != ArmProcessorTable->ArmCpus);\r | |
92 | \r | |
93 | // Copy ARM Processor Table data from HOB list to newly allocated memory\r | |
94 | CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen);\r | |
95 | \r | |
96 | // Install the ARM Processor table into EFI system configuration table\r | |
97 | Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable);\r | |
98 | \r | |
99 | ASSERT_EFI_ERROR (Status);\r | |
100 | }\r | |
101 | }\r | |
102 | }\r | |
103 | }\r |