]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Pei Core Reset System Support\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include "PeiMain.h"\r | |
10 | \r | |
11 | /**\r | |
12 | \r | |
13 | Core version of the Reset System\r | |
14 | \r | |
15 | \r | |
16 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
17 | \r | |
18 | @retval EFI_NOT_AVAILABLE_YET PPI not available yet.\r | |
19 | @retval EFI_DEVICE_ERROR Did not reset system.\r | |
20 | Otherwise, resets the system.\r | |
21 | \r | |
22 | **/\r | |
23 | EFI_STATUS\r | |
24 | EFIAPI\r | |
25 | PeiResetSystem (\r | |
26 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
27 | )\r | |
28 | {\r | |
29 | EFI_STATUS Status;\r | |
30 | EFI_PEI_RESET_PPI *ResetPpi;\r | |
31 | \r | |
32 | //\r | |
33 | // Attempt to use newer ResetSystem2(). If this returns, then ResetSystem2()\r | |
34 | // is not available.\r | |
35 | //\r | |
36 | PeiResetSystem2 (EfiResetCold, EFI_SUCCESS, 0, NULL);\r | |
37 | \r | |
38 | //\r | |
39 | // Look for PEI Reset System PPI\r | |
40 | //\r | |
41 | Status = PeiServicesLocatePpi (\r | |
42 | &gEfiPeiResetPpiGuid,\r | |
43 | 0,\r | |
44 | NULL,\r | |
45 | (VOID **)&ResetPpi\r | |
46 | );\r | |
47 | if (!EFI_ERROR (Status)) {\r | |
48 | return ResetPpi->ResetSystem (PeiServices);\r | |
49 | }\r | |
50 | \r | |
51 | //\r | |
52 | // Report Status Code that Reset PPI is not available.\r | |
53 | //\r | |
54 | REPORT_STATUS_CODE (\r | |
55 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
56 | (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)\r | |
57 | );\r | |
58 | \r | |
59 | //\r | |
60 | // No reset PPIs are available yet.\r | |
61 | //\r | |
62 | return EFI_NOT_AVAILABLE_YET;\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | Resets the entire platform.\r | |
67 | \r | |
68 | @param[in] ResetType The type of reset to perform.\r | |
69 | @param[in] ResetStatus The status code for the reset.\r | |
70 | @param[in] DataSize The size, in bytes, of ResetData.\r | |
71 | @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown\r | |
72 | the data buffer starts with a Null-terminated string, optionally\r | |
73 | followed by additional binary data. The string is a description\r | |
74 | that the caller may use to further indicate the reason for the\r | |
75 | system reset.\r | |
76 | \r | |
77 | **/\r | |
78 | VOID\r | |
79 | EFIAPI\r | |
80 | PeiResetSystem2 (\r | |
81 | IN EFI_RESET_TYPE ResetType,\r | |
82 | IN EFI_STATUS ResetStatus,\r | |
83 | IN UINTN DataSize,\r | |
84 | IN VOID *ResetData OPTIONAL\r | |
85 | )\r | |
86 | {\r | |
87 | EFI_STATUS Status;\r | |
88 | EFI_PEI_RESET2_PPI *Reset2Ppi;\r | |
89 | \r | |
90 | //\r | |
91 | // Look for PEI Reset System 2 PPI\r | |
92 | //\r | |
93 | Status = PeiServicesLocatePpi (\r | |
94 | &gEfiPeiReset2PpiGuid,\r | |
95 | 0,\r | |
96 | NULL,\r | |
97 | (VOID **)&Reset2Ppi\r | |
98 | );\r | |
99 | if (!EFI_ERROR (Status)) {\r | |
100 | Reset2Ppi->ResetSystem (ResetType, ResetStatus, DataSize, ResetData);\r | |
101 | return;\r | |
102 | }\r | |
103 | \r | |
104 | //\r | |
105 | // Report Status Code that Reset2 PPI is not available.\r | |
106 | //\r | |
107 | REPORT_STATUS_CODE (\r | |
108 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
109 | (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)\r | |
110 | );\r | |
111 | }\r |