blob: 3786da91b1b89fc6f36b7b34c415c0dc7d0b6928 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/** @file
FSP MultiPhase library.
Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Library/FspCommonLib.h>
#include <Library/FspSwitchStackLib.h>
#include <Library/FspSecPlatformLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <FspEas/FspApi.h>
#include <FspGlobalData.h>
EFI_STATUS
EFIAPI
FspMultiPhaseSwitchStack (
)
{
SetFspApiReturnStatus (EFI_SUCCESS);
Pei2LoaderSwitchStack ();
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
FspVariableRequestSwitchStack (
IN FSP_MULTI_PHASE_VARIABLE_REQUEST_INFO_PARAMS *FspVariableRequestParams
)
{
FSP_GLOBAL_DATA *FspData;
FspData = GetFspGlobalDataPointer ();
if (((UINTN)FspData == 0) || ((UINTN)FspData == 0xFFFFFFFF)) {
return EFI_UNSUPPORTED;
}
FspData->VariableRequestParameterPtr = (VOID *)FspVariableRequestParams;
SetFspApiReturnStatus (FSP_STATUS_VARIABLE_REQUEST);
Pei2LoaderSwitchStack ();
return EFI_SUCCESS;
}
/**
This function supports FspMultiPhase implementation.
@param[in] ApiIdx Internal index of the FSP API.
@param[in] ApiParam Parameter of the FSP API.
@retval EFI_SUCCESS FSP execution was successful.
@retval EFI_INVALID_PARAMETER Input parameters are invalid.
@retval EFI_UNSUPPORTED The FSP calling conditions were not met.
@retval EFI_DEVICE_ERROR FSP initialization failed.
**/
EFI_STATUS
EFIAPI
FspMultiPhaseWorker (
IN UINT32 ApiIdx,
IN VOID *ApiParam
)
{
FSP_MULTI_PHASE_PARAMS *FspMultiPhaseParams;
FSP_GLOBAL_DATA *FspData;
FSP_MULTI_PHASE_GET_NUMBER_OF_PHASES_PARAMS *FspMultiPhaseGetNumber;
BOOLEAN FspDataValid;
UINT32 NumberOfPhasesSupported;
FspDataValid = TRUE;
FspData = GetFspGlobalDataPointer ();
if (((UINTN)FspData == 0) || ((UINTN)FspData == 0xFFFFFFFF)) {
FspDataValid = FALSE;
}
//
// It is required that FspData->NumberOfPhases to be reset to 0 after
// current FSP component finished.
// The next component FspData->NumberOfPhases will only be re-initialized when FspData->NumberOfPhases = 0
//
if ((FspDataValid == TRUE) && (FspData->NumberOfPhases == 0)) {
FspData->NumberOfPhases = PcdGet32 (PcdMultiPhaseNumberOfPhases);
FspData->PhasesExecuted = 0;
if (FspMultiPhasePlatformGetNumberOfPhases (ApiIdx, &NumberOfPhasesSupported) == TRUE) {
//
// Platform has implemented runtime controlling for NumberOfPhasesSupported
//
FspData->NumberOfPhases = NumberOfPhasesSupported;
}
}
FspMultiPhaseParams = (FSP_MULTI_PHASE_PARAMS *)ApiParam;
if (FspDataValid == FALSE) {
return EFI_DEVICE_ERROR;
} else {
switch (FspMultiPhaseParams->MultiPhaseAction) {
case EnumMultiPhaseGetNumberOfPhases:
if ((FspMultiPhaseParams->MultiPhaseParamPtr == NULL) || (FspMultiPhaseParams->PhaseIndex != 0)) {
return EFI_INVALID_PARAMETER;
}
FspMultiPhaseGetNumber = (FSP_MULTI_PHASE_GET_NUMBER_OF_PHASES_PARAMS *)FspMultiPhaseParams->MultiPhaseParamPtr;
FspMultiPhaseGetNumber->NumberOfPhases = FspData->NumberOfPhases;
FspMultiPhaseGetNumber->PhasesExecuted = FspData->PhasesExecuted;
break;
case EnumMultiPhaseExecutePhase:
if ((FspMultiPhaseParams->PhaseIndex > FspData->PhasesExecuted) && (FspMultiPhaseParams->PhaseIndex <= FspData->NumberOfPhases)) {
FspData->PhasesExecuted = FspMultiPhaseParams->PhaseIndex;
return Loader2PeiSwitchStack ();
} else {
return EFI_INVALID_PARAMETER;
}
break;
case EnumMultiPhaseGetVariableRequestInfo:
//
// return variable request info
//
FspMultiPhaseParams->MultiPhaseParamPtr = FspData->VariableRequestParameterPtr;
break;
case EnumMultiPhaseCompleteVariableRequest:
//
// retrieve complete variable request params
//
FspData->VariableRequestParameterPtr = FspMultiPhaseParams->MultiPhaseParamPtr;
return Loader2PeiSwitchStack ();
break;
default:
return EFI_UNSUPPORTED;
}
}
return EFI_SUCCESS;
}
/**
This function handles FspMultiPhaseMemInitApi.
@param[in] ApiIdx Internal index of the FSP API.
@param[in] ApiParam Parameter of the FSP API.
@retval EFI_SUCCESS FSP execution was successful.
@retval EFI_INVALID_PARAMETER Input parameters are invalid.
@retval EFI_UNSUPPORTED The FSP calling conditions were not met.
@retval EFI_DEVICE_ERROR FSP initialization failed.
**/
EFI_STATUS
EFIAPI
FspMultiPhaseMemInitApiHandler (
IN UINT32 ApiIdx,
IN VOID *ApiParam
)
{
return FspMultiPhaseWorker (ApiIdx, ApiParam);
}
/**
This function handles FspMultiPhaseSiInitApi.
@param[in] ApiIdx Internal index of the FSP API.
@param[in] ApiParam Parameter of the FSP API.
@retval EFI_SUCCESS FSP execution was successful.
@retval EFI_INVALID_PARAMETER Input parameters are invalid.
@retval EFI_UNSUPPORTED The FSP calling conditions were not met.
@retval EFI_DEVICE_ERROR FSP initialization failed.
**/
EFI_STATUS
EFIAPI
FspMultiPhaseSiInitApiHandlerV2 (
IN UINT32 ApiIdx,
IN VOID *ApiParam
)
{
return FspMultiPhaseWorker (ApiIdx, ApiParam);
}
|