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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/** @file
Provide FSP API related function.
Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiPei.h>
#include <Guid/FspHeaderFile.h>
#include <Library/FspApiLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
/**
Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to
long mode.
@param[in] Function The 32bit code entry to be executed.
@param[in] Param1 The first parameter to pass to 32bit code.
@return EFI_STATUS.
**/
EFI_STATUS
Execute32BitCode (
IN UINT64 Function,
IN UINT64 Param1
);
/**
Find FSP header pointer.
@param[in] FlashFvFspBase Flash address of FSP FV.
@return FSP header pointer.
**/
FSP_INFO_HEADER *
EFIAPI
FspFindFspHeader (
IN EFI_PHYSICAL_ADDRESS FlashFvFspBase
)
{
UINT8 *CheckPointer;
CheckPointer = (UINT8 *) (UINTN) FlashFvFspBase;
if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->Signature != EFI_FVH_SIGNATURE) {
return NULL;
}
if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset != 0) {
CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset;
CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_EXT_HEADER *)CheckPointer)->ExtHeaderSize;
CheckPointer = (UINT8 *) ALIGN_POINTER (CheckPointer, 8);
} else {
CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->HeaderLength;
}
if (!CompareGuid (&((EFI_FFS_FILE_HEADER *)CheckPointer)->Name, &gFspHeaderFileGuid)) {
return NULL;
}
CheckPointer = CheckPointer + sizeof (EFI_FFS_FILE_HEADER);
if (((EFI_RAW_SECTION *)CheckPointer)->Type != EFI_SECTION_RAW) {
return NULL;
}
CheckPointer = CheckPointer + sizeof (EFI_RAW_SECTION);
return (FSP_INFO_HEADER *)CheckPointer;
}
/**
Call FSP API - FspInit.
@param[in] FspHeader FSP header pointer.
@param[in] FspInitParams Address pointer to the FSP_INIT_PARAMS structure.
@return EFI status returned by FspInit API.
**/
EFI_STATUS
EFIAPI
CallFspInit (
IN FSP_INFO_HEADER *FspHeader,
IN FSP_INIT_PARAMS *FspInitParams
)
{
FSP_INIT FspInitApi;
EFI_STATUS Status;
BOOLEAN InterruptState;
FspInitApi = (FSP_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspInitEntryOffset);
InterruptState = SaveAndDisableInterrupts ();
Status = Execute32BitCode ((UINTN)FspInitApi, (UINTN)FspInitParams);
SetInterruptState (InterruptState);
return Status;
}
/**
Call FSP API - FspNotifyPhase.
@param[in] FspHeader FSP header pointer.
@param[in] NotifyPhaseParams Address pointer to the NOTIFY_PHASE_PARAMS structure.
@return EFI status returned by FspNotifyPhase API.
**/
EFI_STATUS
EFIAPI
CallFspNotifyPhase (
IN FSP_INFO_HEADER *FspHeader,
IN NOTIFY_PHASE_PARAMS *NotifyPhaseParams
)
{
FSP_NOTIFY_PHASE NotifyPhaseApi;
EFI_STATUS Status;
BOOLEAN InterruptState;
NotifyPhaseApi = (FSP_NOTIFY_PHASE)(UINTN)(FspHeader->ImageBase + FspHeader->NotifyPhaseEntryOffset);
InterruptState = SaveAndDisableInterrupts ();
Status = Execute32BitCode ((UINTN)NotifyPhaseApi, (UINTN)NotifyPhaseParams);
SetInterruptState (InterruptState);
return Status;
}
/**
Call FSP API - FspMemoryInit.
@param[in] FspHeader FSP header pointer.
@param[in,out] FspMemoryInitParams Address pointer to the FSP_MEMORY_INIT_PARAMS structure.
@return EFI status returned by FspMemoryInit API.
**/
EFI_STATUS
EFIAPI
CallFspMemoryInit (
IN FSP_INFO_HEADER *FspHeader,
IN OUT FSP_MEMORY_INIT_PARAMS *FspMemoryInitParams
)
{
FSP_MEMORY_INIT FspMemoryInitApi;
EFI_STATUS Status;
BOOLEAN InterruptState;
FspMemoryInitApi = (FSP_MEMORY_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspMemoryInitEntryOffset);
InterruptState = SaveAndDisableInterrupts ();
Status = Execute32BitCode ((UINTN)FspMemoryInitApi, (UINTN)FspMemoryInitParams);
SetInterruptState (InterruptState);
return Status;
}
/**
Call FSP API - TempRamExit.
@param[in] FspHeader FSP header pointer.
@param[in,out] TempRamExitParam Address pointer to the TempRamExit parameters structure.
@return EFI status returned by TempRamExit API.
**/
EFI_STATUS
EFIAPI
CallTempRamExit (
IN FSP_INFO_HEADER *FspHeader,
IN OUT VOID *TempRamExitParam
)
{
FSP_TEMP_RAM_EXIT TempRamExitApi;
EFI_STATUS Status;
BOOLEAN InterruptState;
TempRamExitApi = (FSP_TEMP_RAM_EXIT)(UINTN)(FspHeader->ImageBase + FspHeader->TempRamExitEntryOffset);
InterruptState = SaveAndDisableInterrupts ();
Status = Execute32BitCode ((UINTN)TempRamExitApi, (UINTN)TempRamExitParam);
SetInterruptState (InterruptState);
return Status;
}
/**
Call FSP API - FspSiliconInit.
@param[in] FspHeader FSP header pointer.
@param[in,out] FspSiliconInitParam Address pointer to the Silicon Init parameters structure.
@return EFI status returned by FspSiliconInit API.
**/
EFI_STATUS
EFIAPI
CallFspSiliconInit (
IN FSP_INFO_HEADER *FspHeader,
IN OUT VOID *FspSiliconInitParam
)
{
FSP_SILICON_INIT FspSiliconInitApi;
EFI_STATUS Status;
BOOLEAN InterruptState;
FspSiliconInitApi = (FSP_SILICON_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspSiliconInitEntryOffset);
InterruptState = SaveAndDisableInterrupts ();
Status = Execute32BitCode ((UINTN)FspSiliconInitApi, (UINTN)FspSiliconInitParam);
SetInterruptState (InterruptState);
return Status;
}
|
