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e5516b49 1/** @file\r
29f766e4 2 Library constructor & destructor, event handlers, and other internal worker functions.\r
e5516b49 3\r
0a6f4824 4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
180a5a35 5 This program and the accompanying materials\r
e5516b49 6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#include "ReportStatusCodeLibInternal.h"\r
16\r
19796be3 17EFI_EVENT mVirtualAddressChangeEvent;\r
18EFI_EVENT mExitBootServicesEvent;\r
19EFI_STATUS_CODE_DATA *mStatusCodeData;\r
20BOOLEAN mInSmm;\r
21EFI_SMM_BASE_PROTOCOL *mSmmBase;\r
22EFI_RUNTIME_SERVICES *mInternalRT;\r
23BOOLEAN mHaveExitedBootServices = FALSE;\r
24EFI_REPORT_STATUS_CODE mReportStatusCode = NULL;\r
25EFI_SMM_STATUS_CODE_PROTOCOL *mSmmStatusCodeProtocol;\r
26\r
27/**\r
28 Locates and caches SMM Status Code Protocol.\r
0a6f4824 29\r
19796be3 30**/\r
31VOID\r
32SmmStatusCodeInitialize (\r
33 VOID\r
34 )\r
35{\r
36 EFI_STATUS Status;\r
37\r
38 Status = gBS->LocateProtocol (&gEfiSmmStatusCodeProtocolGuid, NULL, (VOID **) &mSmmStatusCodeProtocol);\r
39 if (EFI_ERROR (Status)) {\r
40 mSmmStatusCodeProtocol = NULL;\r
41 }\r
42}\r
43\r
44/**\r
45 Report status code via SMM Status Code Protocol.\r
0a6f4824 46\r
19796be3 47 @param Type Indicates the type of status code being reported.\r
0a6f4824
LG
48 @param Value Describes the current status of a hardware or software entity.\r
49 This included information about the class and subclass that is used to classify the entity\r
50 as well as an operation. For progress codes, the operation is the current activity.\r
51 For error codes, it is the exception. For debug codes, it is not defined at this time.\r
52 @param Instance The enumeration of a hardware or software entity within the system.\r
53 A system may contain multiple entities that match a class/subclass pairing.\r
54 The instance differentiates between them. An instance of 0 indicates that instance information is unavailable,\r
19796be3 55 not meaningful, or not relevant. Valid instance numbers start with 1.\r
0a6f4824
LG
56 @param CallerId This optional parameter may be used to identify the caller.\r
57 This parameter allows the status code driver to apply different rules to different callers.\r
19796be3 58 @param Data This optional parameter may be used to pass additional data\r
0a6f4824 59\r
19796be3 60 @retval EFI_SUCCESS Always return EFI_SUCCESS.\r
61\r
62**/\r
63EFI_STATUS\r
64SmmStatusCodeReport (\r
65 IN EFI_STATUS_CODE_TYPE Type,\r
66 IN EFI_STATUS_CODE_VALUE Value,\r
67 IN UINT32 Instance,\r
68 IN EFI_GUID *CallerId OPTIONAL,\r
69 IN EFI_STATUS_CODE_DATA *Data OPTIONAL\r
70 )\r
71{\r
72 if (mSmmStatusCodeProtocol != NULL) {\r
73 (mSmmStatusCodeProtocol->ReportStatusCode) (mSmmStatusCodeProtocol, Type, Value, Instance, CallerId, Data);\r
74 }\r
75 return EFI_SUCCESS;\r
76}\r
e5516b49 77\r
29f766e4 78/**\r
79 Locate the report status code service.\r
b13b4473 80\r
19796be3 81 In SMM, it tries to retrieve SMM Status Code Protocol.\r
29f766e4 82 Otherwise, it first tries to retrieve ReportStatusCode() in Runtime Services Table.\r
83 If not found, it then tries to retrieve ReportStatusCode() API of Report Status Code Protocol.\r
e5516b49 84\r
29f766e4 85 @return Function pointer to the report status code service.\r
86 NULL is returned if no status code service is available.\r
e5516b49 87\r
e5516b49 88**/\r
89EFI_REPORT_STATUS_CODE\r
90InternalGetReportStatusCode (\r
91 VOID\r
92 )\r
93{\r
94 EFI_STATUS_CODE_PROTOCOL *StatusCodeProtocol;\r
e5516b49 95 EFI_STATUS Status;\r
96\r
404d4e5c 97 if (mInSmm) {\r
19796be3 98 return (EFI_REPORT_STATUS_CODE) SmmStatusCodeReport;\r
29f766e4 99 } else if (mInternalRT != NULL && mInternalRT->Hdr.Revision < 0x20000) {\r
100 return ((FRAMEWORK_EFI_RUNTIME_SERVICES*)mInternalRT)->ReportStatusCode;\r
e5516b49 101 } else if (!mHaveExitedBootServices) {\r
0a6f4824
LG
102 //\r
103 // Check gBS just in case. ReportStatusCode is called before gBS is initialized.\r
104 //\r
9556741c 105 if (gBS != NULL) {\r
106 Status = gBS->LocateProtocol (&gEfiStatusCodeRuntimeProtocolGuid, NULL, (VOID**)&StatusCodeProtocol);\r
107 if (!EFI_ERROR (Status) && StatusCodeProtocol != NULL) {\r
108 return StatusCodeProtocol->ReportStatusCode;\r
109 }\r
e5516b49 110 }\r
111 }\r
112\r
113 return NULL;\r
114}\r
115\r
29f766e4 116/**\r
117 Internal worker function that reports a status code through the status code service.\r
118\r
119 If status code service is not cached, then this function checks if status code service is\r
120 available in system. If status code service is not available, then EFI_UNSUPPORTED is\r
121 returned. If status code service is present, then it is cached in mReportStatusCode.\r
122 Finally this function reports status code through the status code service.\r
123\r
124 @param Type Status code type.\r
125 @param Value Status code value.\r
126 @param Instance Status code instance number.\r
127 @param CallerId Pointer to a GUID that identifies the caller of this\r
128 function. This is an optional parameter that may be\r
129 NULL.\r
130 @param Data Pointer to the extended data buffer. This is an\r
131 optional parameter that may be NULL.\r
132\r
133 @retval EFI_SUCCESS The status code was reported.\r
134 @retval EFI_UNSUPPORTED Status code service is not available.\r
135 @retval EFI_UNSUPPORTED Status code type is not supported.\r
136\r
137**/\r
138EFI_STATUS\r
139InternalReportStatusCode (\r
140 IN EFI_STATUS_CODE_TYPE Type,\r
141 IN EFI_STATUS_CODE_VALUE Value,\r
142 IN UINT32 Instance,\r
143 IN CONST EFI_GUID *CallerId OPTIONAL,\r
144 IN EFI_STATUS_CODE_DATA *Data OPTIONAL\r
145 )\r
146{\r
147 if ((ReportProgressCodeEnabled() && ((Type) & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) ||\r
148 (ReportErrorCodeEnabled() && ((Type) & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) ||\r
149 (ReportDebugCodeEnabled() && ((Type) & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE)) {\r
150 //\r
151 // If mReportStatusCode is NULL, then check if status code service is available in system.\r
152 //\r
153 if (mReportStatusCode == NULL) {\r
154 mReportStatusCode = InternalGetReportStatusCode ();\r
155 if (mReportStatusCode == NULL) {\r
156 return EFI_UNSUPPORTED;\r
157 }\r
158 }\r
0a6f4824 159\r
29f766e4 160 //\r
161 // A status code service is present in system, so pass in all the parameters to the service.\r
162 //\r
163 return (*mReportStatusCode) (Type, Value, Instance, (EFI_GUID *)CallerId, Data);\r
164 }\r
0a6f4824 165\r
29f766e4 166 return EFI_UNSUPPORTED;\r
167}\r
e5516b49 168\r
169/**\r
29f766e4 170 Notification function of EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.\r
171\r
172 @param Event Event whose notification function is being invoked.\r
173 @param Context Pointer to the notification function's context\r
e5516b49 174\r
e5516b49 175**/\r
e5516b49 176VOID\r
177EFIAPI\r
178ReportStatusCodeLibVirtualAddressChange (\r
179 IN EFI_EVENT Event,\r
180 IN VOID *Context\r
181 )\r
182{\r
29f766e4 183 if (mReportStatusCode != NULL) {\r
184 mInternalRT->ConvertPointer (0, (VOID **) &mReportStatusCode);\r
e5516b49 185 }\r
29f766e4 186 mInternalRT->ConvertPointer (0, (VOID **) &mStatusCodeData);\r
187 mInternalRT->ConvertPointer (0, (VOID **) &mInternalRT);\r
e5516b49 188}\r
189\r
190/**\r
29f766e4 191 Notification function of EVT_SIGNAL_EXIT_BOOT_SERVICES.\r
192\r
193 @param Event Event whose notification function is being invoked.\r
194 @param Context Pointer to the notification function's context\r
e5516b49 195\r
e5516b49 196**/\r
e5516b49 197VOID\r
198EFIAPI\r
199ReportStatusCodeLibExitBootServices (\r
200 IN EFI_EVENT Event,\r
201 IN VOID *Context\r
202 )\r
203{\r
3c28a728
LG
204 //\r
205 // If mReportStatusCode is NULL, then see if a Status Code Protocol instance is present\r
206 // in the handle database.\r
207 //\r
208 if (mReportStatusCode == NULL) {\r
209 mReportStatusCode = InternalGetReportStatusCode ();\r
210 }\r
211\r
e5516b49 212 mHaveExitedBootServices = TRUE;\r
213}\r
214\r
215/**\r
29f766e4 216 The constructor function of SMM Runtime DXE Report Status Code Lib.\r
e5516b49 217\r
29f766e4 218 This function allocates memory for extended status code data, caches\r
219 the report status code service, and registers events.\r
220\r
221 @param ImageHandle The firmware allocated handle for the EFI image.\r
222 @param SystemTable A pointer to the EFI System Table.\r
0a6f4824 223\r
29f766e4 224 @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
e5516b49 225\r
e5516b49 226**/\r
227EFI_STATUS\r
228EFIAPI\r
229ReportStatusCodeLibConstruct (\r
230 IN EFI_HANDLE ImageHandle,\r
231 IN EFI_SYSTEM_TABLE *SystemTable\r
232 )\r
233{\r
29f766e4 234 EFI_STATUS Status;\r
e5516b49 235\r
236 //\r
29f766e4 237 // If in SMM mode, then allocates memory from SMRAM for extended status code data.\r
238 //\r
9556741c 239 Status = gBS->LocateProtocol (&gEfiSmmBaseProtocolGuid, NULL, (VOID **) &mSmmBase);\r
e5516b49 240 if (!EFI_ERROR (Status)) {\r
c0522bd7 241 mSmmBase->InSmm (mSmmBase, &mInSmm);\r
404d4e5c 242 if (mInSmm) {\r
c0522bd7 243 Status = mSmmBase->SmmAllocatePool (\r
244 mSmmBase,\r
0a6f4824
LG
245 EfiRuntimeServicesData,\r
246 sizeof (EFI_STATUS_CODE_DATA) + EFI_STATUS_CODE_DATA_MAX_SIZE,\r
e5516b49 247 (VOID **) &mStatusCodeData\r
248 );\r
249 ASSERT_EFI_ERROR (Status);\r
19796be3 250 SmmStatusCodeInitialize ();\r
e5516b49 251 return EFI_SUCCESS;\r
252 }\r
253 }\r
254\r
29f766e4 255\r
b13b4473 256 //\r
29f766e4 257 // If not in SMM mode, then allocate runtime memory for extended status code data.\r
258 //\r
259 // Library should not use the gRT directly, for it may be converted by other library instance.\r
0a6f4824 260 //\r
29f766e4 261 mInternalRT = gRT;\r
262 mInSmm = FALSE;\r
b13b4473 263\r
29f766e4 264 mStatusCodeData = AllocateRuntimePool (sizeof (EFI_STATUS_CODE_DATA) + EFI_STATUS_CODE_DATA_MAX_SIZE);\r
265 ASSERT (mStatusCodeData != NULL);\r
e5516b49 266 //\r
267 // Cache the report status code service\r
0a6f4824 268 //\r
e5516b49 269 mReportStatusCode = InternalGetReportStatusCode ();\r
270\r
271 //\r
29f766e4 272 // Register notify function for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE\r
0a6f4824 273 //\r
6a27a4eb 274 Status = gBS->CreateEventEx (\r
275 EVT_NOTIFY_SIGNAL,\r
e5516b49 276 TPL_NOTIFY,\r
277 ReportStatusCodeLibVirtualAddressChange,\r
278 NULL,\r
6a27a4eb 279 &gEfiEventVirtualAddressChangeGuid,\r
e5516b49 280 &mVirtualAddressChangeEvent\r
281 );\r
282 ASSERT_EFI_ERROR (Status);\r
283\r
e5516b49 284 //\r
29f766e4 285 // Register notify function for EVT_SIGNAL_EXIT_BOOT_SERVICES\r
0a6f4824 286 //\r
6a27a4eb 287 Status = gBS->CreateEventEx (\r
288 EVT_NOTIFY_SIGNAL,\r
e5516b49 289 TPL_NOTIFY,\r
290 ReportStatusCodeLibExitBootServices,\r
291 NULL,\r
6a27a4eb 292 &gEfiEventExitBootServicesGuid,\r
e5516b49 293 &mExitBootServicesEvent\r
294 );\r
295 ASSERT_EFI_ERROR (Status);\r
296\r
29f766e4 297 return EFI_SUCCESS;\r
e5516b49 298}\r
299\r
ed7752ec 300/**\r
29f766e4 301 The destructor function of SMM Runtime DXE Report Status Code Lib.\r
0a6f4824 302\r
29f766e4 303 The destructor function frees memory allocated by constructor, and closes related events.\r
0a6f4824 304 It will ASSERT() if that related operation fails and it will always return EFI_SUCCESS.\r
29f766e4 305\r
306 @param ImageHandle The firmware allocated handle for the EFI image.\r
307 @param SystemTable A pointer to the EFI System Table.\r
0a6f4824 308\r
29f766e4 309 @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
310\r
ed7752ec 311**/\r
e5516b49 312EFI_STATUS\r
313EFIAPI\r
314ReportStatusCodeLibDestruct (\r
315 IN EFI_HANDLE ImageHandle,\r
316 IN EFI_SYSTEM_TABLE *SystemTable\r
317 )\r
318{\r
319 EFI_STATUS Status;\r
320\r
c0522bd7 321 if (!mInSmm) {\r
9556741c 322 ASSERT (gBS != NULL);\r
323 Status = gBS->CloseEvent (mVirtualAddressChangeEvent);\r
c0522bd7 324 ASSERT_EFI_ERROR (Status);\r
9556741c 325 Status = gBS->CloseEvent (mExitBootServicesEvent);\r
c0522bd7 326 ASSERT_EFI_ERROR (Status);\r
327\r
29f766e4 328 FreePool (mStatusCodeData);\r
c0522bd7 329 } else {\r
330 mSmmBase->SmmFreePool (mSmmBase, mStatusCodeData);\r
331 }\r
e5516b49 332\r
c0522bd7 333 return EFI_SUCCESS;\r
e5516b49 334}\r
335\r