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3eb9473e | 1 | /*++\r |
2 | \r | |
2c7e5c2f HT |
3 | Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>\r |
4 | This program and the accompanying materials \r | |
3eb9473e | 5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | \r | |
13 | Module Name:\r | |
14 | \r | |
15 | RuntimeLib.c\r | |
16 | \r | |
17 | Abstract:\r | |
18 | \r | |
19 | Runtime lib\r | |
20 | \r | |
21 | --*/\r | |
22 | \r | |
10d315bc | 23 | #include "../RuntimeLibInternal.h"\r |
3eb9473e | 24 | \r |
25 | //\r | |
26 | // Driver Lib Module Globals\r | |
27 | //\r | |
28 | \r | |
29 | STATIC EFI_EVENT mEfiVirtualNotifyEvent;\r | |
30 | STATIC BOOLEAN mEfiGoneVirtual = FALSE;\r | |
31 | STATIC BOOLEAN mEfiAtRuntime = FALSE;\r | |
32 | EFI_RUNTIME_SERVICES *mRT;\r | |
33 | \r | |
34 | /**\r | |
35 | Set AtRuntime flag as TRUE after ExitBootServices\r | |
36 | \r | |
37 | @param[in] Event The Event that is being processed\r | |
38 | @param[in] Context Event Context\r | |
39 | **/\r | |
40 | VOID\r | |
41 | EFIAPI\r | |
42 | RuntimeDriverExitBootServices (\r | |
43 | IN EFI_EVENT Event,\r | |
44 | IN VOID *Context\r | |
45 | )\r | |
46 | {\r | |
47 | //\r | |
48 | // Clear out BootService globals\r | |
49 | //\r | |
50 | gBS = NULL;\r | |
51 | \r | |
52 | mEfiAtRuntime = TRUE;\r | |
53 | }\r | |
54 | \r | |
55 | /**\r | |
56 | Fixup internal data so that EFI can be call in virtual mode.\r | |
57 | Call the passed in Child Notify event and convert any pointers in \r | |
58 | lib to virtual mode.\r | |
59 | \r | |
60 | @param[in] Event The Event that is being processed\r | |
61 | @param[in] Context Event Context\r | |
62 | **/\r | |
63 | STATIC\r | |
64 | VOID\r | |
65 | EFIAPI\r | |
66 | RuntimeLibVirtualNotifyEvent (\r | |
67 | IN EFI_EVENT Event,\r | |
68 | IN VOID *Context\r | |
69 | )\r | |
70 | {\r | |
71 | UINTN Index;\r | |
72 | EFI_EVENT_NOTIFY ChildNotifyEventHandler;\r | |
73 | \r | |
74 | for (Index = 0; \r | |
75 | _gDriverSetVirtualAddressMapEvent[Index] != NULL;\r | |
76 | Index++) {\r | |
77 | ChildNotifyEventHandler = _gDriverSetVirtualAddressMapEvent[Index];\r | |
78 | ChildNotifyEventHandler (Event, NULL);\r | |
79 | }\r | |
80 | \r | |
81 | //\r | |
82 | // Update global for Runtime Services Table and IO\r | |
83 | //\r | |
84 | EfiConvertPointer (0, (VOID **) &mRT);\r | |
85 | \r | |
86 | mEfiGoneVirtual = TRUE;\r | |
87 | }\r | |
88 | \r | |
89 | /**\r | |
90 | Intialize runtime Driver Lib if it has not yet been initialized. \r | |
91 | \r | |
92 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r | |
93 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
94 | \r | |
95 | @return EFI_STATUS always returns EFI_SUCCESS except EFI_ALREADY_STARTED if already started.\r | |
96 | **/\r | |
97 | EFI_STATUS\r | |
98 | EFIAPI\r | |
99 | RuntimeDriverLibConstruct (\r | |
100 | IN EFI_HANDLE ImageHandle,\r | |
101 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
102 | )\r | |
103 | {\r | |
104 | EFI_STATUS Status;\r | |
105 | \r | |
106 | ASSERT (SystemTable != NULL);\r | |
107 | mRT = SystemTable->RuntimeServices;\r | |
108 | ASSERT (mRT != NULL);\r | |
109 | \r | |
110 | //\r | |
111 | // Register SetVirtualAddressMap () notify function\r | |
112 | // \r | |
113 | ASSERT (gBS != NULL);\r | |
114 | Status = gBS->CreateEvent (\r | |
115 | EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r | |
116 | EFI_TPL_NOTIFY,\r | |
117 | RuntimeLibVirtualNotifyEvent,\r | |
118 | NULL,\r | |
119 | &mEfiVirtualNotifyEvent\r | |
120 | );\r | |
121 | \r | |
122 | ASSERT_EFI_ERROR (Status);\r | |
123 | \r | |
c7f33ca4 | 124 | return Status;\r |
3eb9473e | 125 | }\r |
126 | \r | |
127 | /**\r | |
128 | This routine will free some resources which have been allocated in\r | |
129 | EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error, \r | |
130 | it must call this routine to free the allocated resource before the exiting.\r | |
131 | \r | |
132 | @retval EFI_SUCCESS Shutdown the Runtime Driver Lib successfully\r | |
133 | @retval EFI_UNSUPPORTED Runtime Driver lib was not initialized at all\r | |
134 | **/\r | |
135 | EFI_STATUS\r | |
136 | EFIAPI\r | |
137 | RuntimeDriverLibDeconstruct (\r | |
138 | IN EFI_HANDLE ImageHandle,\r | |
139 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
140 | )\r | |
141 | {\r | |
142 | EFI_STATUS Status;\r | |
143 | \r | |
144 | //\r | |
145 | // Close SetVirtualAddressMap () notify function\r | |
146 | //\r | |
147 | ASSERT (gBS != NULL);\r | |
148 | Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);\r | |
149 | ASSERT_EFI_ERROR (Status);\r | |
c7f33ca4 | 150 | \r |
151 | return Status;\r | |
3eb9473e | 152 | }\r |
153 | \r | |
154 | /**\r | |
155 | Return TRUE if ExitBootServices () has been called\r | |
156 | \r | |
157 | @retval TRUE If ExitBootServices () has been called\r | |
158 | **/\r | |
159 | BOOLEAN\r | |
160 | EFIAPI\r | |
161 | EfiAtRuntime (\r | |
162 | VOID\r | |
163 | )\r | |
164 | {\r | |
165 | return mEfiAtRuntime;\r | |
166 | }\r | |
167 | \r | |
168 | /**\r | |
169 | Return TRUE if SetVirtualAddressMap () has been called\r | |
170 | \r | |
171 | @retval TRUE If SetVirtualAddressMap () has been called\r | |
172 | **/\r | |
173 | BOOLEAN\r | |
174 | EFIAPI\r | |
175 | EfiGoneVirtual (\r | |
176 | VOID\r | |
177 | )\r | |
178 | {\r | |
179 | return mEfiGoneVirtual;\r | |
180 | }\r | |
181 | \r |