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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
|
/*++
Copyright (c) 2004 - 2008, 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.
Module Name:
BsDataHubStatusCode.c
Abstract:
This implements a status code listener that logs status codes into the data
hub. This is only active during non-runtime DXE.
The status codes are recorded in a extensiable buffer, and a event is signalled
to log them to the data hub. The recorder is the producer of the status code in
buffer and the event notify function the consummer.
--*/
#include "BsDataHubStatusCode.h"
//
// Initialize FIFO to cache records.
//
STATIC EFI_LIST_ENTRY mRecordsFifo = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);
STATIC EFI_LIST_ENTRY mRecordsBuffer = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsBuffer);
STATIC EFI_EVENT mLogDataHubEvent;
STATIC BOOLEAN mEventHandlerActive = FALSE;
//
// Cache data hub protocol.
//
STATIC EFI_DATA_HUB_PROTOCOL *mDataHubProtocol;
STATIC
DATA_HUB_STATUS_CODE_DATA_RECORD *
AcquireRecordBuffer (
VOID
)
/*++
Routine Description:
Return one DATAHUB_STATUSCODE_RECORD space.
The size of free record pool would be extend, if the pool is empty.
Arguments:
None
Returns:
A pointer to the new allocated node or NULL if non available
--*/
{
DATAHUB_STATUSCODE_RECORD *Record;
EFI_TPL CurrentTpl;
EFI_LIST_ENTRY *Node;
UINT32 Index;
Record = NULL;
CurrentTpl = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);
if (!IsListEmpty (&mRecordsBuffer)) {
Node = GetFirstNode (&mRecordsBuffer);
RemoveEntryList (Node);
Record = _CR (Node, DATAHUB_STATUSCODE_RECORD, Node);
} else {
if (CurrentTpl > EFI_TPL_NOTIFY) {
gBS->RestoreTPL (CurrentTpl);
return NULL;
}
gBS->RestoreTPL (CurrentTpl);
gBS->AllocatePool (EfiBootServicesData, sizeof (DATAHUB_STATUSCODE_RECORD) * 16, (VOID **) &Record);
if (Record == NULL) {
return NULL;
}
EfiCommonLibZeroMem (Record, sizeof (DATAHUB_STATUSCODE_RECORD) * 16);
CurrentTpl = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);
for (Index = 1; Index < 16; Index++) {
InsertTailList (&mRecordsBuffer, &Record[Index].Node);
}
}
Record->Signature = BS_DATA_HUB_STATUS_CODE_SIGNATURE;
InsertTailList (&mRecordsFifo, &Record->Node);
gBS->RestoreTPL (CurrentTpl);
return (DATA_HUB_STATUS_CODE_DATA_RECORD *) (Record->Data);
}
STATIC
DATA_HUB_STATUS_CODE_DATA_RECORD *
RetrieveRecord (
VOID
)
/*++
Routine Description:
Retrieve one record from Records FIFO. The record would be removed from FIFO and
release to free record buffer.
Arguments:
None
Returns:
Point to record which is ready to be logged, or NULL if the FIFO of record is empty.
--*/
{
DATA_HUB_STATUS_CODE_DATA_RECORD *RecordData;
DATAHUB_STATUSCODE_RECORD *Record;
EFI_LIST_ENTRY *Node;
EFI_TPL CurrentTpl;
RecordData = NULL;
CurrentTpl = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);
if (!IsListEmpty (&mRecordsFifo)) {
Node = GetFirstNode (&mRecordsFifo);
Record = CR (Node, DATAHUB_STATUSCODE_RECORD, Node, BS_DATA_HUB_STATUS_CODE_SIGNATURE);
RemoveEntryList (&Record->Node);
InsertTailList (&mRecordsBuffer, &Record->Node);
Record->Signature = 0;
RecordData = (DATA_HUB_STATUS_CODE_DATA_RECORD *) Record->Data;
}
gBS->RestoreTPL (CurrentTpl);
return RecordData;
}
EFI_STATUS
EFIAPI
BsDataHubReportStatusCode (
IN EFI_STATUS_CODE_TYPE CodeType,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN EFI_GUID * CallerId,
IN EFI_STATUS_CODE_DATA * Data OPTIONAL
)
/*++
Routine Description:
Boot service report status code listener. This function logs the status code
into the data hub.
Arguments:
Same as gRT->ReportStatusCode (See Tiano Runtime Specification)
Returns:
None
--*/
{
DATA_HUB_STATUS_CODE_DATA_RECORD *Record;
UINT32 ErrorLevel;
VA_LIST Marker;
CHAR8 *Format;
CHAR16 FormatBuffer[BYTES_PER_RECORD];
UINTN Index;
//
// See whether in runtime phase or not.
//
if (EfiAtRuntime ()) {
//
// For now all we do is post code at runtime
//
return EFI_SUCCESS;
}
//
// Discard new DataHubRecord caused by DataHub->LogData()
//
if (mEventHandlerActive) {
return EFI_SUCCESS;
}
Record = AcquireRecordBuffer ();
if (Record == NULL) {
//
// There are no empty record buffer in private buffers
//
return EFI_OUT_OF_RESOURCES;
}
//
// Construct Data Hub Extended Data
//
Record->CodeType = CodeType;
Record->Value = Value;
Record->Instance = Instance;
if (CallerId != NULL) {
EfiCopyMem (&Record->CallerId, CallerId, sizeof (EFI_GUID));
}
if (Data != NULL) {
if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) {
//
// Convert Ascii Format string to Unicode.
//
for (Index = 0; Format[Index] != '\0' && Index < (BYTES_PER_RECORD - 1); Index += 1) {
FormatBuffer[Index] = (CHAR16) Format[Index];
}
FormatBuffer[Index] = L'\0';
//
// Put processed string into the buffer
//
Index = VSPrint (
(CHAR16 *) (Record + 1),
BYTES_PER_RECORD - (sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD)),
FormatBuffer,
Marker
);
EfiCopyMem (&Record->Data.Type, &gEfiStatusCodeDataTypeDebugGuid, sizeof (EFI_GUID));
Record->Data.HeaderSize = Data->HeaderSize;
Record->Data.Size = (UINT16) (Index * sizeof (CHAR16));
} else {
//
// Copy status code data header
//
EfiCopyMem (&Record->Data, Data, sizeof (EFI_STATUS_CODE_DATA));
if (Data->Size > BYTES_PER_RECORD - sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD)) {
Record->Data.Size = (UINT16) (BYTES_PER_RECORD - sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD));
}
EfiCopyMem ((VOID *) (Record + 1), Data + 1, Record->Data.Size);
}
}
gBS->SignalEvent (mLogDataHubEvent);
return EFI_SUCCESS;
}
VOID
EFIAPI
LogDataHubEventHandler (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
The Event handler which will be notified to log data in Data Hub.
Arguments:
Event - Instance of the EFI_EVENT to signal whenever data is
available to be logged in the system.
Context - Context of the event.
Returns:
None.
--*/
{
DATA_HUB_STATUS_CODE_DATA_RECORD *Record;
UINT32 Size;
UINT64 DataRecordClass;
//
// Set global flag so we don't recurse if DataHub->LogData eventually causes new DataHubRecord
//
mEventHandlerActive = TRUE;
//
// Log DataRecord in Data Hub.
// Journal records fifo to find all record entry.
//
while (1) {
Record = RetrieveRecord ();
if (Record == NULL) {
break;
}
//
// Add in the size of the header we added.
//
Size = sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD) + (UINT32) Record->Data.Size;
if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) {
DataRecordClass = EFI_DATA_RECORD_CLASS_PROGRESS_CODE;
} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) {
DataRecordClass = EFI_DATA_RECORD_CLASS_ERROR;
} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {
DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG;
} else {
//
// Should never get here.
//
DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG |
EFI_DATA_RECORD_CLASS_ERROR |
EFI_DATA_RECORD_CLASS_DATA |
EFI_DATA_RECORD_CLASS_PROGRESS_CODE;
}
//
// Log DataRecord in Data Hub
//
mDataHubProtocol->LogData (
mDataHubProtocol,
&gEfiStatusCodeGuid,
&gEfiStatusCodeRuntimeProtocolGuid,
DataRecordClass,
Record,
Size
);
}
mEventHandlerActive = FALSE;
}
EFI_STATUS
EFIAPI
BsDataHubInitializeStatusCode (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Install a data hub listener.
Arguments:
(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
Returns:
EFI_SUCCESS - Logging Hub protocol installed
Other - No protocol installed, unload driver.
--*/
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
&gEfiDataHubProtocolGuid,
NULL,
(VOID **) &mDataHubProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Create a Notify Event to log data in Data Hub
//
Status = gBS->CreateEvent (
EFI_EVENT_NOTIFY_SIGNAL,
EFI_TPL_CALLBACK,
LogDataHubEventHandler,
NULL,
&mLogDataHubEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
|