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1/** @file\r
2 This module provide function for ascertaining and updating the boot mode:\r
3 GetBootMode()\r
4 SetBootMode()\r
5 See PI Specification volume I, chapter 9 Boot Paths for additional information\r
6 on the boot mode.\r
7 \r
8Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
9This program and the accompanying materials \r
10are licensed and made available under the terms and conditions of the BSD License \r
11which accompanies this distribution. The full text of the license may be found at \r
12http://opensource.org/licenses/bsd-license.php \r
13 \r
14THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
15WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
16\r
17**/\r
18\r
19#include "PeiMain.h"\r
20\r
21/**\r
22 This service enables PEIMs to ascertain the present value of the boot mode.\r
23\r
24 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
25 @param BootMode A pointer to contain the value of the boot mode.\r
26\r
27 @retval EFI_SUCCESS The boot mode was returned successfully.\r
28 @retval EFI_INVALID_PARAMETER BootMode is NULL.\r
29\r
30**/\r
31EFI_STATUS\r
32EFIAPI\r
33PeiGetBootMode (\r
34 IN CONST EFI_PEI_SERVICES **PeiServices,\r
35 IN OUT EFI_BOOT_MODE *BootMode\r
36 )\r
37{\r
38 PEI_CORE_INSTANCE *PrivateData; \r
39 EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;\r
40\r
41\r
42 if (BootMode == NULL) {\r
43 return EFI_INVALID_PARAMETER;\r
44 }\r
45\r
46 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
47 \r
48 HandOffHob = (PrivateData->HobList.HandoffInformationTable);\r
49 \r
50 *BootMode = HandOffHob->BootMode;\r
51 \r
52\r
53 return EFI_SUCCESS; \r
54}\r
55\r
56\r
57/**\r
58 This service enables PEIMs to update the boot mode variable.\r
59\r
60\r
61 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
62 @param BootMode The value of the boot mode to set.\r
63\r
64 @return EFI_SUCCESS The value was successfully updated\r
65\r
66**/\r
67EFI_STATUS\r
68EFIAPI\r
69PeiSetBootMode (\r
70 IN CONST EFI_PEI_SERVICES **PeiServices,\r
71 IN EFI_BOOT_MODE BootMode\r
72 )\r
73{\r
74 PEI_CORE_INSTANCE *PrivateData; \r
75 EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;\r
76\r
77\r
78 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
79 \r
80 HandOffHob = (PrivateData->HobList.HandoffInformationTable);\r
81 \r
82 HandOffHob->BootMode = BootMode;\r
83\r
84\r
85 return EFI_SUCCESS; \r
86}\r