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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
5 | This program and the accompanying materials are licensed and made available under\r\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
7 | The full text of the license may be found at \r\r | |
8 | http://opensource.org/licenses/bsd-license.php. \r\r | |
9 | \r\r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
12 | \r\r | |
13 | \r | |
14 | Module Name:\r | |
15 | \r | |
16 | PlatformCpuInfoDxe.c\r | |
17 | \r | |
18 | Abstract:\r | |
19 | Platform Cpu Info driver to public platform related HOB data\r | |
20 | \r | |
21 | --*/\r | |
22 | \r | |
23 | #include "PlatformCpuInfoDxe.h"\r | |
24 | \r | |
25 | CHAR16 EfiPlatformCpuInfoVariable[] = L"PlatformCpuInfo";\r | |
26 | \r | |
27 | EFI_STATUS\r | |
28 | EFIAPI\r | |
29 | PlatformCpuInfoInit (\r | |
30 | IN EFI_HANDLE ImageHandle,\r | |
31 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
32 | )\r | |
33 | {\r | |
34 | EFI_STATUS Status;\r | |
35 | EFI_PLATFORM_CPU_INFO *PlatformCpuInfoPtr;\r | |
36 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
37 | \r | |
38 | //\r | |
39 | // Get Platform Cpu Info HOB\r | |
40 | //\r | |
41 | GuidHob.Raw = GetHobList ();\r | |
42 | while ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformCpuInfoGuid, GuidHob.Raw)) != NULL) {\r | |
43 | PlatformCpuInfoPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
44 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r | |
45 | \r | |
46 | //\r | |
47 | // Write the Platform CPU Info to volatile memory for runtime purposes.\r | |
48 | // This must be done in its own driver because SetVariable protocol is dependent on chipset,\r | |
49 | // which is dependent on CpuIo, PlatformInfo, and Metronome.\r | |
50 | //\r | |
51 | Status = gRT->SetVariable(\r | |
52 | EfiPlatformCpuInfoVariable,\r | |
53 | &gEfiVlv2VariableGuid,\r | |
54 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
55 | sizeof(EFI_PLATFORM_CPU_INFO),\r | |
56 | PlatformCpuInfoPtr\r | |
57 | );\r | |
58 | if (EFI_ERROR(Status)) {\r | |
59 | return Status;\r | |
60 | }\r | |
61 | }\r | |
62 | \r | |
63 | return EFI_SUCCESS;\r | |
64 | }\r | |
65 | \r |