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44788bae | 1 | /** @file\r |
2 | *\r | |
ea61e597 | 3 | * Copyright (c) 2011-2021, Arm Limited. All rights reserved.<BR>\r |
44788bae | 4 | *\r |
4059386c | 5 | * SPDX-License-Identifier: BSD-2-Clause-Patent\r |
44788bae | 6 | *\r |
7 | **/\r | |
8 | \r | |
9 | #include <Library/UefiBootServicesTableLib.h>\r | |
10 | #include <Library/BaseMemoryLib.h>\r | |
11 | #include <Library/HobLib.h>\r | |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/MemoryAllocationLib.h>\r | |
14 | \r | |
15 | #include <Guid/ArmMpCoreInfo.h>\r | |
16 | \r | |
429309e0 | 17 | ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = {\r |
44788bae | 18 | {\r |
19 | EFI_ARM_PROCESSOR_TABLE_SIGNATURE,\r | |
20 | 0,\r | |
21 | EFI_ARM_PROCESSOR_TABLE_REVISION,\r | |
22 | EFI_ARM_PROCESSOR_TABLE_OEM_ID,\r | |
23 | EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID,\r | |
24 | EFI_ARM_PROCESSOR_TABLE_OEM_REVISION,\r | |
25 | EFI_ARM_PROCESSOR_TABLE_CREATOR_ID,\r | |
26 | EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION,\r | |
b0fdce95 | 27 | { 0 },\r |
44788bae | 28 | 0\r |
429309e0 | 29 | }, // ARM Processor table header\r |
44788bae | 30 | 0, // Number of entries in ARM processor Table\r |
31 | NULL // ARM Processor Table\r | |
32 | };\r | |
33 | \r | |
34 | /** Publish ARM Processor Data table in UEFI SYSTEM Table.\r | |
ea61e597 | 35 | * @param HobStart Pointer to the beginning of the HOB List from PEI.\r |
44788bae | 36 | *\r |
37 | * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.\r | |
38 | * If the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory\r | |
39 | * and a pointer is assigned to it in ARM processor table. Then the ARM processor table is\r | |
40 | * installed in EFI configuration table.\r | |
41 | **/\r | |
42 | VOID\r | |
43 | EFIAPI\r | |
44 | PublishArmProcessorTable (\r | |
45 | VOID\r | |
46 | )\r | |
47 | {\r | |
429309e0 | 48 | EFI_PEI_HOB_POINTERS Hob;\r |
44788bae | 49 | \r |
50 | Hob.Raw = GetHobList ();\r | |
51 | \r | |
52 | // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB\r | |
429309e0 | 53 | for ( ; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {\r |
44788bae | 54 | // Check for Correct HOB type\r |
55 | if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {\r | |
56 | // Check for correct GUID type\r | |
429309e0 MK |
57 | if (CompareGuid (&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) {\r |
58 | ARM_PROCESSOR_TABLE *ArmProcessorTable;\r | |
59 | EFI_STATUS Status;\r | |
44788bae | 60 | \r |
61 | // Allocate Runtime memory for ARM processor table\r | |
429309e0 | 62 | ArmProcessorTable = (ARM_PROCESSOR_TABLE *)AllocateRuntimePool (sizeof (ARM_PROCESSOR_TABLE));\r |
44788bae | 63 | \r |
ff5fef14 | 64 | // Check if the memory allocation is successful or not\r |
429309e0 | 65 | ASSERT (NULL != ArmProcessorTable);\r |
44788bae | 66 | \r |
67 | // Set ARM processor table to default values\r | |
429309e0 | 68 | CopyMem (ArmProcessorTable, &mArmProcessorTableTemplate, sizeof (ARM_PROCESSOR_TABLE));\r |
44788bae | 69 | \r |
70 | // Fill in Length fields of ARM processor table\r | |
429309e0 MK |
71 | ArmProcessorTable->Header.Length = sizeof (ARM_PROCESSOR_TABLE);\r |
72 | ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE (Hob);\r | |
44788bae | 73 | \r |
74 | // Fill in Identifier(ARM processor table GUID)\r | |
75 | ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid;\r | |
76 | \r | |
77 | // Set Number of ARM core entries in the Table\r | |
429309e0 | 78 | ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE (Hob)/sizeof (ARM_CORE_INFO);\r |
44788bae | 79 | \r |
80 | // Allocate runtime memory for ARM processor Table entries\r | |
429309e0 MK |
81 | ArmProcessorTable->ArmCpus = (ARM_CORE_INFO *)AllocateRuntimePool (\r |
82 | ArmProcessorTable->NumberOfEntries * sizeof (ARM_CORE_INFO)\r | |
83 | );\r | |
44788bae | 84 | \r |
ff5fef14 | 85 | // Check if the memory allocation is successful or not\r |
429309e0 | 86 | ASSERT (NULL != ArmProcessorTable->ArmCpus);\r |
44788bae | 87 | \r |
88 | // Copy ARM Processor Table data from HOB list to newly allocated memory\r | |
429309e0 | 89 | CopyMem (ArmProcessorTable->ArmCpus, GET_GUID_HOB_DATA (Hob), ArmProcessorTable->Header.DataLen);\r |
44788bae | 90 | \r |
91 | // Install the ARM Processor table into EFI system configuration table\r | |
92 | Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable);\r | |
93 | \r | |
94 | ASSERT_EFI_ERROR (Status);\r | |
95 | }\r | |
96 | }\r | |
97 | }\r | |
98 | }\r |