Commit | Line | Data |
---|---|---|
615c6dd0 | 1 | /** @file\r |
b1f6a7c6 | 2 | Pei Core Reset System Support\r |
8f86d67d | 3 | \r |
eac49c83 | 4 | Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
192f6d4c | 6 | \r |
b1f6a7c6 | 7 | **/\r |
192f6d4c | 8 | \r |
0d516397 | 9 | #include "PeiMain.h"\r |
192f6d4c | 10 | \r |
b1f6a7c6 | 11 | /**\r |
192f6d4c | 12 | \r |
b1f6a7c6 | 13 | Core version of the Reset System\r |
192f6d4c | 14 | \r |
192f6d4c | 15 | \r |
dc857d56 | 16 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r |
192f6d4c | 17 | \r |
b1f6a7c6 | 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 | |
192f6d4c | 21 | \r |
b1f6a7c6 | 22 | **/\r |
192f6d4c | 23 | EFI_STATUS\r |
24 | EFIAPI\r | |
25 | PeiResetSystem (\r | |
8f86d67d | 26 | IN CONST EFI_PEI_SERVICES **PeiServices\r |
192f6d4c | 27 | )\r |
192f6d4c | 28 | {\r |
8f86d67d MK |
29 | EFI_STATUS Status;\r |
30 | EFI_PEI_RESET_PPI *ResetPpi;\r | |
192f6d4c | 31 | \r |
7072a185 MK |
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 | |
192f6d4c | 37 | \r |
38 | //\r | |
7072a185 | 39 | // Look for PEI Reset System PPI\r |
192f6d4c | 40 | //\r |
7072a185 MK |
41 | Status = PeiServicesLocatePpi (\r |
42 | &gEfiPeiResetPpiGuid,\r | |
43 | 0,\r | |
44 | NULL,\r | |
45 | (VOID **)&ResetPpi\r | |
46 | );\r | |
192f6d4c | 47 | if (!EFI_ERROR (Status)) {\r |
48 | return ResetPpi->ResetSystem (PeiServices);\r | |
8f86d67d MK |
49 | }\r |
50 | \r | |
37623a5c | 51 | //\r |
8f86d67d | 52 | // Report Status Code that Reset PPI is not available.\r |
37623a5c | 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 | |
7072a185 MK |
58 | \r |
59 | //\r | |
60 | // No reset PPIs are available yet.\r | |
61 | //\r | |
192f6d4c | 62 | return EFI_NOT_AVAILABLE_YET;\r |
63 | }\r | |
64 | \r | |
672473ea SZ |
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 | |
c8721bb2 | 70 | @param[in] DataSize The size, in bytes, of ResetData.\r |
672473ea SZ |
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 | |
eac49c83 | 75 | system reset.\r |
672473ea SZ |
76 | \r |
77 | **/\r | |
78 | VOID\r | |
79 | EFIAPI\r | |
80 | PeiResetSystem2 (\r | |
8f86d67d MK |
81 | IN EFI_RESET_TYPE ResetType,\r |
82 | IN EFI_STATUS ResetStatus,\r | |
83 | IN UINTN DataSize,\r | |
84 | IN VOID *ResetData OPTIONAL\r | |
672473ea SZ |
85 | )\r |
86 | {\r | |
8f86d67d MK |
87 | EFI_STATUS Status;\r |
88 | EFI_PEI_RESET2_PPI *Reset2Ppi;\r | |
672473ea | 89 | \r |
7072a185 MK |
90 | //\r |
91 | // Look for PEI Reset System 2 PPI\r | |
92 | //\r | |
672473ea SZ |
93 | Status = PeiServicesLocatePpi (\r |
94 | &gEfiPeiReset2PpiGuid,\r | |
95 | 0,\r | |
96 | NULL,\r | |
97 | (VOID **)&Reset2Ppi\r | |
98 | );\r | |
672473ea SZ |
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 |