1 /** @file
2   Platform Hob access interface for multiplatform.
3 
4   Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
5 
6 
7   This program and the accompanying materials are licensed and made available under
8 
9   the terms and conditions of the BSD License that accompanies this distribution.
10 
11   The full text of the license may be found at
12 
13   http://opensource.org/licenses/bsd-license.php.
14 
15 
16 
17   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
18 
19   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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21 
22 
23 
24 **/
25 
26 #include <MultiPlatformLib.h>
27 
28 /**
29   Returns the Platform Info of the platform from the HOB.
GetPlatformInfoHob(IN CONST EFI_PEI_SERVICES ** PeiServices,OUT EFI_PLATFORM_INFO_HOB ** PlatformInfoHob)30 
31   @param PeiServices         General purpose services available to every PEIM.
32   @param PlatformInfoHob     Pointer to the PLATFORM_INFO_HOB Pointer
33 
34   @retval EFI_SUCCESS        The function completed successfully.
35   @retval EFI_NOT_FOUND      PlatformInfoHob data doesn't exist, use default instead.
36 
37 **/
38 EFI_STATUS
39 GetPlatformInfoHob (
40   IN CONST EFI_PEI_SERVICES           **PeiServices,
41   OUT EFI_PLATFORM_INFO_HOB     **PlatformInfoHob
42   )
43 {
44   EFI_PEI_HOB_POINTERS        GuidHob;
45 
46   //
47   // Find the PlatformInfo HOB
48   //
49   GuidHob.Raw = GetHobList ();
50   if (GuidHob.Raw == NULL) {
51     return EFI_NOT_FOUND;
52   }
53 
54   if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {
55     *PlatformInfoHob = GET_GUID_HOB_DATA (GuidHob.Guid);
56   }
57 
58   //
59   // PlatformInfo PEIM should provide this HOB data, if not ASSERT and return error.
60   //
61   ASSERT (*PlatformInfoHob != NULL);
62   if (!(*PlatformInfoHob)) {
63     return EFI_NOT_FOUND;
64   }
65 
66   return EFI_SUCCESS;
67 }
68 
69