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
216
217
218
219
220
|
/*++
Copyright (c) 2004 - 2007, Intel Corporation
All rights reserved. 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.
Module Name:
EfiSmmDriverLib.h
Abstract:
Light weight lib to support EFI Smm drivers.
--*/
#ifndef _EFI_SMM_DRIVER_LIB_H_
#define _EFI_SMM_DRIVER_LIB_H_
#include "Tiano.h"
#include "GetImage.h"
#include "EfiCommonLib.h"
#include EFI_GUID_DEFINITION (EventLegacyBios)
#include EFI_GUID_DEFINITION (EventGroup)
#include EFI_PROTOCOL_DEFINITION (FirmwareVolume)
#include EFI_PROTOCOL_DEFINITION (FirmwareVolume2)
#include EFI_PROTOCOL_DEFINITION (SmmBase)
#include EFI_PROTOCOL_DEFINITION (SmmStatusCode)
//
// Driver Lib Globals.
//
extern EFI_BOOT_SERVICES *gBS;
extern EFI_SYSTEM_TABLE *gST;
extern EFI_RUNTIME_SERVICES *gRT;
extern EFI_SMM_BASE_PROTOCOL *gSMM;
extern EFI_SMM_STATUS_CODE_PROTOCOL *mSmmDebug;
extern UINTN gErrorLevel;
#define EfiCopyMem EfiCommonLibCopyMem
#define EfiSetMem EfiCommonLibSetMem
#define EfiZeroMem EfiCommonLibZeroMem
EFI_STATUS
EfiInitializeSmmDriverLib (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable,
IN OUT BOOLEAN *InSmm
)
/*++
Routine Description:
Intialize Smm Driver Lib if it has not yet been initialized.
Arguments:
ImageHandle - The firmware allocated handle for the EFI image.
SystemTable - A pointer to the EFI System Table.
InSmm - If InSmm is NULL, it will not register Image to SMM.
If InSmm is not NULL, it will register Image to SMM and
return information on currently in SMM mode or not.
Returns:
EFI_STATUS always returns EFI_SUCCESS
--*/
;
VOID
EfiDebugAssert (
IN CHAR8 *FileName,
IN INTN LineNumber,
IN CHAR8 *Description
)
/*++
Routine Description:
Worker function for ASSERT (). If Error Logging hub is loaded log ASSERT
information. If Error Logging hub is not loaded DEADLOOP ().
Arguments:
FileName - File name of failing routine.
LineNumber - Line number of failing ASSERT().
Description - Description, usually the assertion,
Returns:
None
--*/
;
VOID
EfiDebugVPrint (
IN UINTN ErrorLevel,
IN CHAR8 *Format,
IN VA_LIST Marker
)
/*++
Routine Description:
Worker function for DEBUG(). If Error Logging hub is loaded log ASSERT
information. If Error Logging hub is not loaded do nothing.
Arguments:
ErrorLevel - If error level is set do the debug print.
Format - String to use for the print, followed by Print arguments.
Marker - VarArgs
Returns:
None
--*/
;
VOID
EfiDebugPrint (
IN UINTN ErrorLevel,
IN CHAR8 *Format,
...
)
/*++
Routine Description:
Worker function for DEBUG(). If Error Logging hub is loaded log ASSERT
information. If Error Logging hub is not loaded do nothing.
Arguments:
ErrorLevel - If error level is set do the debug print.
Format - String to use for the print, followed by Print arguments.
... - VAR args for Format
Returns:
None
--*/
;
EFI_STATUS
EFIAPI
SmmEfiCreateEventLegacyBoot (
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
OUT EFI_EVENT *LegacyBootEvent
)
/*++
Routine Description:
Create a Legacy Boot Event.
Tiano extended the CreateEvent Type enum to add a legacy boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification by
declaring a GUID for the legacy boot event class. This library supports
the R8.5/EFI 1.10 form and R8.6/UEFI 2.0 form and allows common code to
work both ways.
Arguments:
LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex)
Returns:
EFI_SUCCESS Event was created.
Other Event was not created.
--*/
;
EFI_STATUS
EFIAPI
SmmEfiCreateEventReadyToBoot (
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
OUT EFI_EVENT *ReadyToBootEvent
)
/*++
Routine Description:
Create a Read to Boot Event.
Tiano extended the CreateEvent Type enum to add a ready to boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification and use
the ready to boot event class defined in UEFI 2.0. This library supports
the R8.5/EFI 1.10 form and R8.6/UEFI 2.0 form and allows common code to
work both ways.
Arguments:
ReadyToBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex)
Return:
EFI_SUCCESS - Event was created.
Other - Event was not created.
--*/
;
#endif
|