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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
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 | Module Name:\r | |
13 | \r | |
14 | EsalServiceLib.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | --*/\r | |
19 | \r | |
20 | #include <Ipf/IpfDefines.h>\r | |
21 | \r | |
22 | \r | |
23 | STATIC EXTENDED_SAL_BOOT_SERVICE_PROTOCOL *mEsalBootService;\r | |
24 | \r | |
25 | EFI_STATUS\r | |
26 | EFIAPI\r | |
27 | DxeSalLibConstruct (\r | |
28 | IN EFI_HANDLE ImageHandle,\r | |
29 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
30 | )\r | |
31 | {\r | |
32 | EFI_STATUS Status;\r | |
33 | \r | |
34 | Status = gBS->LocateProtocol (&gEfiExtendedSalBootServiceProtocolGuid, NULL, &mEsalBootService);\r | |
35 | ASSERT_EFI_ERROR (Status);\r | |
36 | \r | |
37 | return Status;\r | |
38 | }\r | |
39 | \r | |
40 | EFI_STATUS\r | |
41 | RegisterEsalFunction (\r | |
42 | IN UINT64 FunctionId,\r | |
43 | IN EFI_GUID *ClassGuid,\r | |
44 | IN SAL_INTERNAL_EXTENDED_SAL_PROC Function,\r | |
45 | IN VOID *ModuleGlobal\r | |
46 | )\r | |
47 | /*++\r | |
48 | \r | |
49 | Routine Description:\r | |
50 | \r | |
51 | Register ESAL Class Function and it's asociated global.\r | |
52 | This function is boot service only!\r | |
53 | \r | |
54 | Arguments:\r | |
55 | FunctionId - ID of function to register\r | |
56 | ClassGuid - GUID of function class \r | |
57 | Function - Function to register under ClassGuid/FunctionId pair\r | |
58 | ModuleGlobal - Module global for Function.\r | |
59 | \r | |
60 | Returns: \r | |
61 | EFI_SUCCESS - If ClassGuid/FunctionId Function was registered.\r | |
62 | \r | |
63 | --*/\r | |
64 | {\r | |
65 | return mEsalBootService->AddExtendedSalProc (\r | |
66 | mEsalBootService,\r | |
67 | ClassGuid,\r | |
68 | FunctionId,\r | |
69 | Function,\r | |
70 | ModuleGlobal\r | |
71 | );\r | |
72 | }\r | |
73 | \r | |
74 | EFI_STATUS\r | |
75 | RegisterEsalClass (\r | |
76 | IN EFI_GUID *ClassGuid,\r | |
77 | IN VOID *ModuleGlobal,\r | |
78 | ...\r | |
79 | )\r | |
80 | /*++\r | |
81 | \r | |
82 | Routine Description:\r | |
83 | \r | |
84 | Register ESAL Class and it's asociated global.\r | |
85 | This function is boot service only!\r | |
86 | \r | |
87 | Arguments:\r | |
88 | ClassGuid - GUID of function class \r | |
89 | ModuleGlobal - Module global for Function.\r | |
90 | ... - SAL_INTERNAL_EXTENDED_SAL_PROC and FunctionId pairs. NULL \r | |
91 | indicates the end of the list.\r | |
92 | \r | |
93 | Returns: \r | |
94 | EFI_SUCCESS - All members of ClassGuid registered\r | |
95 | \r | |
96 | --*/\r | |
97 | {\r | |
98 | VA_LIST Args;\r | |
99 | EFI_STATUS Status;\r | |
100 | SAL_INTERNAL_EXTENDED_SAL_PROC Function;\r | |
101 | UINT64 FunctionId;\r | |
102 | EFI_HANDLE NewHandle;\r | |
103 | \r | |
104 | VA_START (Args, ModuleGlobal);\r | |
105 | \r | |
106 | Status = EFI_SUCCESS;\r | |
107 | while (!EFI_ERROR (Status)) {\r | |
108 | Function = (SAL_INTERNAL_EXTENDED_SAL_PROC) VA_ARG (Args, SAL_INTERNAL_EXTENDED_SAL_PROC);\r | |
109 | if (Function == NULL) {\r | |
110 | break;\r | |
111 | }\r | |
112 | \r | |
113 | FunctionId = VA_ARG (Args, UINT64);\r | |
114 | \r | |
115 | Status = RegisterEsalFunction (FunctionId, ClassGuid, Function, ModuleGlobal);\r | |
116 | }\r | |
117 | \r | |
118 | if (EFI_ERROR (Status)) {\r | |
119 | return Status;\r | |
120 | }\r | |
121 | \r | |
122 | NewHandle = NULL;\r | |
123 | return gBS->InstallProtocolInterface (\r | |
124 | &NewHandle,\r | |
125 | ClassGuid,\r | |
126 | EFI_NATIVE_INTERFACE,\r | |
127 | NULL\r | |
128 | );\r | |
129 | }\r | |
130 | \r | |
131 | SAL_RETURN_REGS\r | |
132 | EfiCallEsalService (\r | |
133 | IN EFI_GUID *ClassGuid,\r | |
134 | IN UINT64 FunctionId,\r | |
135 | IN UINT64 Arg2,\r | |
136 | IN UINT64 Arg3,\r | |
137 | IN UINT64 Arg4,\r | |
138 | IN UINT64 Arg5,\r | |
139 | IN UINT64 Arg6,\r | |
140 | IN UINT64 Arg7,\r | |
141 | IN UINT64 Arg8\r | |
142 | )\r | |
143 | /*++\r | |
144 | \r | |
145 | Routine Description:\r | |
146 | \r | |
147 | Call module that is not linked direclty to this module. This code is IP \r | |
148 | relative and hides the binding issues of virtual or physical calling. The\r | |
149 | function that gets dispatched has extra arguments that include the registered\r | |
150 | module global and a boolean flag to indicate if the system is in virutal mode.\r | |
151 | \r | |
152 | Arguments:\r | |
153 | ClassGuid - GUID of function\r | |
154 | FunctionId - Function in ClassGuid to call\r | |
155 | Arg2 - Argument 2 ClassGuid/FunctionId defined\r | |
156 | Arg3 - Argument 3 ClassGuid/FunctionId defined\r | |
157 | Arg4 - Argument 4 ClassGuid/FunctionId defined\r | |
158 | Arg5 - Argument 5 ClassGuid/FunctionId defined\r | |
159 | Arg6 - Argument 6 ClassGuid/FunctionId defined\r | |
160 | Arg7 - Argument 7 ClassGuid/FunctionId defined\r | |
161 | Arg8 - Argument 8 ClassGuid/FunctionId defined\r | |
162 | \r | |
163 | Returns: \r | |
164 | Status of ClassGuid/FuncitonId\r | |
165 | \r | |
166 | --*/\r | |
167 | {\r | |
168 | SAL_RETURN_REGS ReturnReg;\r | |
169 | SAL_EXTENDED_SAL_PROC EsalProc;\r | |
170 | \r | |
171 | ReturnReg = GetEsalEntryPoint ();\r | |
172 | if (ReturnReg.Status != EFI_SAL_SUCCESS) {\r | |
173 | return ReturnReg;\r | |
174 | }\r | |
175 | \r | |
176 | if (ReturnReg.r11 & PSR_IT_MASK) {\r | |
177 | //\r | |
178 | // Virtual mode plabel to entry point\r | |
179 | //\r | |
180 | EsalProc = (SAL_EXTENDED_SAL_PROC) ReturnReg.r10;\r | |
181 | } else {\r | |
182 | //\r | |
183 | // Physical mode plabel to entry point\r | |
184 | //\r | |
185 | EsalProc = (SAL_EXTENDED_SAL_PROC) ReturnReg.r9;\r | |
186 | }\r | |
187 | \r | |
188 | return EsalProc (\r | |
189 | ClassGuid,\r | |
190 | FunctionId,\r | |
191 | Arg2,\r | |
192 | Arg3,\r | |
193 | Arg4,\r | |
194 | Arg5,\r | |
195 | Arg6,\r | |
196 | Arg7,\r | |
197 | Arg8\r | |
198 | );\r | |
199 | }\r |