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
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
|
/** @file
PI SMM Status Code Protocol on Framework SMM Status Code Protocol Thunk.
This thunk driver produces PI SMM Status Code Protocol and SMM Report Status Code Handler Protocol.
And it registers a status code handler within itself to route status codes into Framework SMM Status
Code Protocol.
Note that Framework SMM Status Code Protocol and PI SMM Status Code Protocol have identical protocol
GUID and interface structure, but they are in different handle databases.
Copyright (c) 2010, 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 that 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.
**/
#include "PiSmmStatusCodeOnFrameworkSmmStatusCodeThunk.h"
LIST_ENTRY mCallbackListHead = INITIALIZE_LIST_HEAD_VARIABLE (mCallbackListHead);
//
// Report operation nest status.
// If it is set, then the report operation has nested.
//
UINT32 mStatusCodeNestStatus = 0;
EFI_SMM_STATUS_CODE_PROTOCOL mSmmStatusCodeProtocol = {
ReportDispatcher
};
EFI_SMM_RSC_HANDLER_PROTOCOL mSmmRscHandlerProtocol = {
Register,
Unregister
};
EFI_SMM_STATUS_CODE_PROTOCOL *mFrameworkSmmStatusCode;
/**
Register the callback function for ReportStatusCode() notification.
When this function is called the function pointer is added to an internal list and any future calls to
ReportStatusCode() will be forwarded to the Callback function.
@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called
when a call to ReportStatusCode() occurs.
@retval EFI_SUCCESS Function was successfully registered.
@retval EFI_INVALID_PARAMETER The callback function was NULL.
@retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be
registered.
@retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.
**/
EFI_STATUS
EFIAPI
Register (
IN EFI_SMM_RSC_HANDLER_CALLBACK Callback
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
if (Callback == NULL) {
return EFI_INVALID_PARAMETER;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
if (CallbackEntry->RscHandlerCallback == Callback) {
//
// If the function was already registered. It can't be registered again.
//
return EFI_ALREADY_STARTED;
}
}
CallbackEntry = (SMM_RSC_HANDLER_CALLBACK_ENTRY *)AllocatePool (sizeof (SMM_RSC_HANDLER_CALLBACK_ENTRY));
ASSERT (CallbackEntry != NULL);
CallbackEntry->Signature = SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE;
CallbackEntry->RscHandlerCallback = Callback;
InsertTailList (&mCallbackListHead, &CallbackEntry->Node);
return EFI_SUCCESS;
}
/**
Remove a previously registered callback function from the notification list.
ReportStatusCode() messages will no longer be forwarded to the Callback function.
@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be
unregistered.
@retval EFI_SUCCESS The function was successfully unregistered.
@retval EFI_INVALID_PARAMETER The callback function was NULL.
@retval EFI_NOT_FOUND The callback function was not found to be unregistered.
**/
EFI_STATUS
EFIAPI
Unregister (
IN EFI_SMM_RSC_HANDLER_CALLBACK Callback
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
if (Callback == NULL) {
return EFI_INVALID_PARAMETER;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
if (CallbackEntry->RscHandlerCallback == Callback) {
//
// If the function is found in list, delete it and return.
//
RemoveEntryList (&CallbackEntry->Node);
FreePool (CallbackEntry);
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Provides an interface that a software module can call to report a status code.
@param This EFI_SMM_STATUS_CODE_PROTOCOL instance.
@param Type Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or software entity.
This included information about the class and subclass that is used to
classify the entity as well as an operation.
@param Instance The enumeration of a hardware or software entity within
the system. Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_DEVICE_ERROR The function should not be completed due to a device error.
**/
EFI_STATUS
EFIAPI
ReportDispatcher (
IN CONST EFI_SMM_STATUS_CODE_PROTOCOL *This,
IN EFI_STATUS_CODE_TYPE Type,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN CONST EFI_GUID *CallerId OPTIONAL,
IN EFI_STATUS_CODE_DATA *Data OPTIONAL
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
//
// Use atom operation to avoid the reentant of report.
// If current status is not zero, then the function is reentrancy.
//
if (InterlockedCompareExchange32 (&mStatusCodeNestStatus, 0, 1) == 1) {
return EFI_DEVICE_ERROR;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
CallbackEntry->RscHandlerCallback (
Type,
Value,
Instance,
(EFI_GUID*)CallerId,
Data
);
}
//
// Restore the nest status of report
//
InterlockedCompareExchange32 (&mStatusCodeNestStatus, 1, 0);
return EFI_SUCCESS;
}
/**
This SMM Status Code Handler routes status codes to Framework SMM Status Code Protocol.
@param CodeType Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or software entity.
This included information about the class and subclass that is used to
classify the entity as well as an operation.
@param Instance The enumeration of a hardware or software entity within
the system. Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_DEVICE_ERROR The function should not be completed due to a device error.
**/
EFI_STATUS
SmmStatusCodeHandler (
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
)
{
return mFrameworkSmmStatusCode->ReportStatusCode (
mFrameworkSmmStatusCode,
CodeType,
Value,
Instance,
CallerId,
Data
);
}
/**
Entry point of PI SMM Status Code Protocol on Framework SMM Status Code Protocol thunk driver.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
SmmStatusCodeThunkMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE Handle;
//
// Locate Framework SMM Status Code Protocol in UEFI handle database.
//
Status = SystemTable->BootServices->LocateProtocol (
&gEfiSmmStatusCodeProtocolGuid,
NULL,
(VOID **)&mFrameworkSmmStatusCode
);
ASSERT_EFI_ERROR (Status);
//
// Registers status code handler to route status codes into Framework SMM Status Code Protocol.
//
Register (SmmStatusCodeHandler);
Handle = NULL;
//
// Install SmmRscHandler Protocol
//
Status = gSmst->SmmInstallProtocolInterface (
&Handle,
&gEfiSmmRscHandlerProtocolGuid,
EFI_NATIVE_INTERFACE,
&mSmmRscHandlerProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Install SmmStatusCode Protocol
//
Status = gSmst->SmmInstallProtocolInterface (
&Handle,
&gEfiSmmStatusCodeProtocolGuid,
EFI_NATIVE_INTERFACE,
&mSmmStatusCodeProtocol
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
/** @file
PI SMM Status Code Protocol on Framework SMM Status Code Protocol Thunk.
This thunk driver produces PI SMM Status Code Protocol and SMM Report Status Code Handler Protocol.
And it registers a status code handler within itself to route status codes into Framework SMM Status
Code Protocol.
Note that Framework SMM Status Code Protocol and PI SMM Status Code Protocol have identical protocol
GUID and interface structure, but they are in different handle databases.
Copyright (c) 2010, 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 that 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.
**/
#include "PiSmmStatusCodeOnFrameworkSmmStatusCodeThunk.h"
LIST_ENTRY mCallbackListHead = INITIALIZE_LIST_HEAD_VARIABLE (mCallbackListHead);
//
// Report operation nest status.
// If it is set, then the report operation has nested.
//
UINT32 mStatusCodeNestStatus = 0;
EFI_SMM_STATUS_CODE_PROTOCOL mSmmStatusCodeProtocol = {
ReportDispatcher
};
EFI_SMM_RSC_HANDLER_PROTOCOL mSmmRscHandlerProtocol = {
Register,
Unregister
};
EFI_SMM_STATUS_CODE_PROTOCOL *mFrameworkSmmStatusCode;
/**
Register the callback function for ReportStatusCode() notification.
When this function is called the function pointer is added to an internal list and any future calls to
ReportStatusCode() will be forwarded to the Callback function.
@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called
when a call to ReportStatusCode() occurs.
@retval EFI_SUCCESS Function was successfully registered.
@retval EFI_INVALID_PARAMETER The callback function was NULL.
@retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be
registered.
@retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.
**/
EFI_STATUS
EFIAPI
Register (
IN EFI_SMM_RSC_HANDLER_CALLBACK Callback
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
if (Callback == NULL) {
return EFI_INVALID_PARAMETER;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
if (CallbackEntry->RscHandlerCallback == Callback) {
//
// If the function was already registered. It can't be registered again.
//
return EFI_ALREADY_STARTED;
}
}
CallbackEntry = (SMM_RSC_HANDLER_CALLBACK_ENTRY *)AllocatePool (sizeof (SMM_RSC_HANDLER_CALLBACK_ENTRY));
ASSERT (CallbackEntry != NULL);
CallbackEntry->Signature = SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE;
CallbackEntry->RscHandlerCallback = Callback;
InsertTailList (&mCallbackListHead, &CallbackEntry->Node);
return EFI_SUCCESS;
}
/**
Remove a previously registered callback function from the notification list.
ReportStatusCode() messages will no longer be forwarded to the Callback function.
@param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be
unregistered.
@retval EFI_SUCCESS The function was successfully unregistered.
@retval EFI_INVALID_PARAMETER The callback function was NULL.
@retval EFI_NOT_FOUND The callback function was not found to be unregistered.
**/
EFI_STATUS
EFIAPI
Unregister (
IN EFI_SMM_RSC_HANDLER_CALLBACK Callback
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
if (Callback == NULL) {
return EFI_INVALID_PARAMETER;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
if (CallbackEntry->RscHandlerCallback == Callback) {
//
// If the function is found in list, delete it and return.
//
RemoveEntryList (&CallbackEntry->Node);
FreePool (CallbackEntry);
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Provides an interface that a software module can call to report a status code.
@param This EFI_SMM_STATUS_CODE_PROTOCOL instance.
@param Type Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or software entity.
This included information about the class and subclass that is used to
classify the entity as well as an operation.
@param Instance The enumeration of a hardware or software entity within
the system. Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_DEVICE_ERROR The function should not be completed due to a device error.
**/
EFI_STATUS
EFIAPI
ReportDispatcher (
IN CONST EFI_SMM_STATUS_CODE_PROTOCOL *This,
IN EFI_STATUS_CODE_TYPE Type,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN CONST EFI_GUID *CallerId OPTIONAL,
IN EFI_STATUS_CODE_DATA *Data OPTIONAL
)
{
LIST_ENTRY *Link;
SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;
//
// Use atom operation to avoid the reentant of report.
// If current status is not zero, then the function is reentrancy.
//
if (InterlockedCompareExchange32 (&mStatusCodeNestStatus, 0, 1) == 1) {
return EFI_DEVICE_ERROR;
}
for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {
CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);
CallbackEntry->RscHandlerCallback (
Type,
Value,
Instance,
(EFI_GUID*)CallerId,
Data
);
}
//
// Restore the nest status of report
//
InterlockedCompareExchange32 (&mStatusCodeNestStatus, 1, 0);
return EFI_SUCCESS;
}
/**
This SMM Status Code Handler routes status codes to Framework SMM Status Code Protocol.
@param CodeType Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or software entity.
This included information about the class and subclass that is used to
classify the entity as well as an operation.
@param Instance The enumeration of a hardware or software entity within
the system. Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_DEVICE_ERROR The function should not be completed due to a device error.
**/
EFI_STATUS
SmmStatusCodeHandler (
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
)
{
return mFrameworkSmmStatusCode->ReportStatusCode (
mFrameworkSmmStatusCode,
CodeType,
Value,
Instance,
CallerId,
Data
);
}
/**
Entry point of PI SMM Status Code Protocol on Framework SMM Status Code Protocol thunk driver.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
SmmStatusCodeThunkMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE Handle;
//
// Locate Framework SMM Status Code Protocol in UEFI handle database.
//
Status = SystemTable->BootServices->LocateProtocol (
&gEfiSmmStatusCodeProtocolGuid,
NULL,
(VOID **)&mFrameworkSmmStatusCode
);
ASSERT_EFI_ERROR (Status);
//
// Registers status code handler to route status codes into Framework SMM Status Code Protocol.
//
Register (SmmStatusCodeHandler);
Handle = NULL;
//
// Install SmmRscHandler Protocol
//
Status = gSmst->SmmInstallProtocolInterface (
&Handle,
&gEfiSmmRscHandlerProtocolGuid,
EFI_NATIVE_INTERFACE,
&mSmmRscHandlerProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Install SmmStatusCode Protocol
//
Status = gSmst->SmmInstallProtocolInterface (
&Handle,
&gEfiSmmStatusCodeProtocolGuid,
EFI_NATIVE_INTERFACE,
&mSmmStatusCodeProtocol
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
|
