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1 | /** @file\r | |
2 | Source file for FSP notify phase PEI module\r | |
3 | \r | |
4 | Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | **/\r | |
7 | \r | |
8 | #include "FspNotifyPhasePeim.h"\r | |
9 | \r | |
10 | /**\r | |
11 | \r | |
12 | This function waits for FSP notify.\r | |
13 | \r | |
14 | @param This Entry point for DXE IPL PPI.\r | |
15 | @param PeiServices General purpose services available to every PEIM.\r | |
16 | @param HobList Address to the Pei HOB list.\r | |
17 | \r | |
18 | @return EFI_SUCCESS This function never returns.\r | |
19 | \r | |
20 | **/\r | |
21 | EFI_STATUS\r | |
22 | EFIAPI\r | |
23 | WaitForNotify (\r | |
24 | IN CONST EFI_DXE_IPL_PPI *This,\r | |
25 | IN EFI_PEI_SERVICES **PeiServices,\r | |
26 | IN EFI_PEI_HOB_POINTERS HobList\r | |
27 | );\r | |
28 | \r | |
29 | CONST EFI_DXE_IPL_PPI mDxeIplPpi = {\r | |
30 | WaitForNotify\r | |
31 | };\r | |
32 | \r | |
33 | CONST EFI_PEI_PPI_DESCRIPTOR mInstallDxeIplPpi = {\r | |
34 | EFI_PEI_PPI_DESCRIPTOR_PPI,\r | |
35 | &gEfiDxeIplPpiGuid,\r | |
36 | (VOID *)&mDxeIplPpi\r | |
37 | };\r | |
38 | \r | |
39 | CONST EFI_PEI_PPI_DESCRIPTOR gEndOfPeiSignalPpi = {\r | |
40 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
41 | &gEfiEndOfPeiSignalPpiGuid,\r | |
42 | NULL\r | |
43 | };\r | |
44 | \r | |
45 | CONST EFI_PEI_PPI_DESCRIPTOR gFspReadyForNotifyPhasePpi = {\r | |
46 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
47 | &gFspReadyForNotifyPhasePpiGuid,\r | |
48 | NULL\r | |
49 | };\r | |
50 | \r | |
51 | /**\r | |
52 | \r | |
53 | This function waits for FSP notify.\r | |
54 | \r | |
55 | @param This Entry point for DXE IPL PPI.\r | |
56 | @param PeiServices General purpose services available to every PEIM.\r | |
57 | @param HobList Address to the Pei HOB list.\r | |
58 | \r | |
59 | @return EFI_SUCCESS This function never returns.\r | |
60 | \r | |
61 | **/\r | |
62 | EFI_STATUS\r | |
63 | EFIAPI\r | |
64 | WaitForNotify (\r | |
65 | IN CONST EFI_DXE_IPL_PPI *This,\r | |
66 | IN EFI_PEI_SERVICES **PeiServices,\r | |
67 | IN EFI_PEI_HOB_POINTERS HobList\r | |
68 | )\r | |
69 | {\r | |
70 | EFI_STATUS Status;\r | |
71 | \r | |
72 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP HOB is located at 0x%08X\n", HobList));\r | |
73 | \r | |
74 | //\r | |
75 | // End of PEI phase signal\r | |
76 | //\r | |
77 | Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);\r | |
78 | ASSERT_EFI_ERROR (Status);\r | |
79 | \r | |
80 | //\r | |
81 | // Give control back to BootLoader after FspSiliconInit\r | |
82 | //\r | |
83 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP is waiting for NOTIFY\n"));\r | |
84 | FspSiliconInitDone2 (EFI_SUCCESS);\r | |
85 | \r | |
86 | //\r | |
87 | // BootLoader called FSP again through NotifyPhase\r | |
88 | //\r | |
89 | FspWaitForNotify ();\r | |
90 | \r | |
91 | if (GetFspGlobalDataPointer ()->FspMode == FSP_IN_API_MODE) {\r | |
92 | //\r | |
93 | // Should not come here\r | |
94 | //\r | |
95 | while (TRUE) {\r | |
96 | DEBUG ((DEBUG_ERROR, "No FSP API should be called after FSP is DONE!\n"));\r | |
97 | SetFspApiReturnStatus (EFI_UNSUPPORTED);\r | |
98 | Pei2LoaderSwitchStack ();\r | |
99 | }\r | |
100 | }\r | |
101 | \r | |
102 | return EFI_SUCCESS;\r | |
103 | }\r | |
104 | \r | |
105 | /**\r | |
106 | FSP notify phase PEI module entry point\r | |
107 | \r | |
108 | @param[in] FileHandle Not used.\r | |
109 | @param[in] PeiServices General purpose services available to every PEIM.\r | |
110 | \r | |
111 | @retval EFI_SUCCESS The function completes successfully\r | |
112 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to create database\r | |
113 | **/\r | |
114 | EFI_STATUS\r | |
115 | EFIAPI\r | |
116 | FspNotifyPhasePeimEntryPoint (\r | |
117 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
118 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
119 | )\r | |
120 | {\r | |
121 | EFI_STATUS Status;\r | |
122 | VOID *OldDxeIplPpi;\r | |
123 | EFI_PEI_PPI_DESCRIPTOR *OldDescriptor;\r | |
124 | \r | |
125 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "The entry of FspNotificationPeim\n"));\r | |
126 | \r | |
127 | if (GetFspGlobalDataPointer ()->FspMode == FSP_IN_API_MODE) {\r | |
128 | //\r | |
129 | // Locate old DXE IPL PPI\r | |
130 | //\r | |
131 | Status = PeiServicesLocatePpi (\r | |
132 | &gEfiDxeIplPpiGuid,\r | |
133 | 0,\r | |
134 | &OldDescriptor,\r | |
135 | &OldDxeIplPpi\r | |
136 | );\r | |
137 | ASSERT_EFI_ERROR (Status);\r | |
138 | \r | |
139 | //\r | |
140 | // Re-install the DXE IPL PPI to wait for notify\r | |
141 | //\r | |
142 | Status = PeiServicesReInstallPpi (OldDescriptor, &mInstallDxeIplPpi);\r | |
143 | ASSERT_EFI_ERROR (Status);\r | |
144 | } else {\r | |
145 | Status = PeiServicesInstallPpi (&gFspReadyForNotifyPhasePpi);\r | |
146 | ASSERT_EFI_ERROR (Status);\r | |
147 | }\r | |
148 | \r | |
149 | return EFI_SUCCESS;\r | |
150 | }\r |