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
|
/****************************************************************************
* $IBMCopyrightBlock:
*
* IBM Confidential
*
* Licensed Internal Code Source Materials
*
* IBM HostBoot Licensed Internal Code
*
* (C) Copyright IBM Corp. 2011
*
* The source code for this program is not published or other-
* wise divested of its trade secrets, irrespective of what has
* been deposited with the U.S. Copyright Office.
* $
****************************************************************************/
/**
* @file initservice.C
*
* Implements Initialization Service for Host boot.
* See initservice.H for details
*
*/
#include <kernel/console.H>
#include <sys/vfs.h>
#include <vfs/vfs.H>
#include <sys/task.h>
#include <trace/interface.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <sys/sync.h>
#include "initservice.H"
#include "initsvctasks.H"
namespace INITSERVICE
{
trace_desc_t *g_trac_initsvc = NULL;
TRAC_INIT(&g_trac_initsvc, "INITSERVICE", 4096);
/******************************************************************************/
// InitService::getTheInstance return the only instance
/******************************************************************************/
InitService& InitService::getTheInstance()
{
return Singleton<InitService>::instance();
}
/******************************************************************************/
// InitService::Initservice constructor
/******************************************************************************/
InitService::InitService()
{
}
/******************************************************************************/
// InitService::~InitService destructor
/******************************************************************************/
InitService::~InitService()
{
}
errlHndl_t InitService::startTask( const TaskInfo *i_ptask,
TaskArgs::TaskArgs *io_pargs ) const
{
tid_t tidrc = 0;
errlHndl_t lo_errl = NULL;
assert(i_ptask->taskflags.task_type == START_TASK);
// Base modules have already been loaded and initialized,
// extended modules have not.
if(i_ptask->taskflags.module_type == EXT_IMAGE)
{
// load module and call _init()
lo_errl = VFS::module_load( i_ptask->taskname );
}
if( !lo_errl)
{
tidrc = task_exec( i_ptask->taskname, io_pargs ); // launch the child
if ( static_cast<int16_t>(tidrc) < 0 )
{
// task failed to launch, post an errorlog and dump some trace
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid see task list
* @reasoncode START_TASK_FAILED
* @userdata1 task id or task return code
* @userdata2 0
*
* @devdesc Initialization Service failed to start a task.
* The module id will identify the task.
*
*/
lo_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
i_ptask->taskflags.module_id, // moduleid
INITSERVICE::START_TASK_FAILED, // reason Code
tidrc, // user1 = tidrc
0
);
TRACDBIN( g_trac_initsvc,
"ERROR starting task:",
i_ptask->taskname,
strlen(i_ptask->taskname) );
TRACDCOMP( g_trac_initsvc,
"tidrc=%d, errlog p = %p" ,
(int16_t)tidrc, lo_errl );
} // endif tidrc
else
{
// task launched OK.
TRACDBIN( g_trac_initsvc,
"Task finished OK :",
i_ptask->taskname,
strlen(i_ptask->taskname) );
TRACDCOMP( g_trac_initsvc,
"task number %d, errlog p = %p",
tidrc, lo_errl );
if ( io_pargs )
{
io_pargs->waitParentSync(); // sync up childtask
}
}
}
// else module load failed. have error log
return lo_errl;
}
errlHndl_t InitService::executeFn( const TaskInfo *i_ptask,
TaskArgs *io_pargs ) const
{
tid_t tidrc = 0;
errlHndl_t lo_errl = NULL;
if ( i_ptask->taskfn == NULL )
{
TRACDBIN( g_trac_initsvc,
"ERROR: NULL function pointer:",
i_ptask->taskname,
strlen(i_ptask->taskname) );
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid see task list
* @reasoncode NULL_FN_PTR
* @userdata1 0
* @userdata2 0
*
* @devdesc Initialization Service attempted to start a
* function within a module but found a NULL pointer
* instead of the function.
* The module id will identify the task.
*/
lo_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
i_ptask->taskflags.module_id, // moduleid
INITSERVICE::NULL_FN_PTR, // reason Code
0,
0 );
// fall through to end and return bad error log
}
else
{
// valid function, launch it
tidrc = task_create( i_ptask->taskfn, io_pargs );
if ( static_cast<int16_t>(tidrc) < 0 )
{
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid see task list
* @reasoncode NULL_FN_PTR
* @userdata1 0
* @userdata2 0
*
* @devdesc Initialization Service attempted to start a
* function within a module but the function
* failed to launch
* The module id will identify the task.
*/
lo_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
i_ptask->taskflags.module_id, // moduleid
INITSERVICE::START_FN_FAILED, // reason Code
tidrc, // user1 = tidrc
0 );
TRACDBIN( g_trac_initsvc,
ENTER_MRK "ERROR starting function:",
i_ptask->taskname,
strlen(i_ptask->taskname) );
TRACDCOMP( g_trac_initsvc,
EXIT_MRK "tidrc=%d, errlog p = %p" ,
(int16_t)tidrc, lo_errl );
} // endif tidrc
else
{
TRACDBIN( g_trac_initsvc,
ENTER_MRK "function launched OK :",
i_ptask->taskname,
strlen(i_ptask->taskname) );
TRACDCOMP( g_trac_initsvc,
EXIT_MRK "task number %d, errlog p = %p",
tidrc, lo_errl );
// task launched OK.
if ( io_pargs )
{
io_pargs->waitParentSync(); // sync up parent task
}
}
} // end else
return lo_errl;
}
void InitService::reportError(errlHndl_t &io_rerrl ) const
{
if ( io_rerrl == NULL )
{
// this is OK, do nothing
}
else
{
TRACDCOMP( g_trac_initsvc,
"Committing the error log %p.",
io_rerrl );
errlCommit( io_rerrl );
}
}
/**
* @todo this will make a system call to post the error code.
*/
void InitService::setProgressCode( uint64_t i_progresscode ) const
{
// do nothing for now
}
/**
* @note For task_type = NONE case, I'm assuming that trace will not crash
* if we have a NULL taskname string, printing it is useful for debug.
*/
void InitService::init( void *i_ptr )
{
errlHndl_t errl = NULL; // steps will return an error handle if failure
uint64_t nextTask = 0;
const TaskInfo *ptask = NULL;
TaskArgs::TaskArgs args;
TRACFCOMP( g_trac_initsvc,
ENTER_MRK "Initialization Service is starting." );
// ----------------------------------------------------------------
// loop through the task list and start up any tasks necessary
// ----------------------------------------------------------------
for ( nextTask=0;
nextTask<INITSERVICE::MAX_TASKS;
nextTask++ )
{
// make a local copy of the base image task
ptask = &(g_taskinfolist[nextTask]);
if ( ptask->taskflags.task_type == END_TASK_LIST )
{
TRACDCOMP( g_trac_initsvc,
"End of Initialization Service task list.\n" );
break;
}
args.clear(); // clear args struct for next task
// dispatch tasks...
switch ( ptask->taskflags.task_type)
{
case NONE:
// task is a place holder, skip
TRACDBIN( g_trac_initsvc,
"task_type==NONE",
ptask->taskname,
strlen( ptask->taskname) );
break;
case START_TASK:
TRACDBIN( g_trac_initsvc,
"task_type==START_TASK",
ptask->taskname,
strlen( ptask->taskname) );
errl = startTask( ptask, // task struct
&args ); // args
break;
case START_FN:
TRACDCOMP( g_trac_initsvc,
"task_type==START_FN : %p",
ptask->taskfn );
errl = executeFn( ptask,
&args );
break;
case BARRIER:
TRACDCOMP( g_trac_initsvc,
"task_type==BARRIER" );
// $$TODO
break;
case UNINIT_TASK:
TRACDBIN( g_trac_initsvc,
"task_type=UNINIT_TASK : ",
ptask->taskname,
strlen(ptask->taskname) );
errl = VFS::module_unload( ptask->taskname );
break;
default:
TRACDCOMP( g_trac_initsvc,
"Invalid task_type %d: ",
ptask->taskflags.task_type );
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid BASE_INITSVC_ERRL_ID
* @reasoncode INVALID_TASK_TYPE
* @userdata1 task_type value
* @userdata2 0
*
* @devdesc Initialization Service found an invalid
* Task Type in the task list.
* The module id will identify the task.
* task_type value will be the invalid type.
*/
errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
BASE_INITSVC_ERRL_ID, // moduleid
INVALID_TASK_TYPE, // reason Code
ptask->taskflags.task_type,
0 );
break;
} // endswitch
// report an error
reportError( errl );
if ( args.getReturnCode() != TASKARGS_UNDEFINED64 )
{
TRACFCOMP( g_trac_initsvc,
ERR_MRK "InitService TaskArgs returned 0x%llx, errlog=%p",
args.getReturnCode(),
args.getErrorLog()
);
errlHndl_t childerrl = args.getErrorLog(); // local copy
reportError( childerrl ); // report child error
}
} // endfor
// die if we drop out with an error
assert( errl == NULL);
TRACFCOMP( g_trac_initsvc,
EXIT_MRK "Initilization Service finished.");
// return to _start(), which may end the task or die.
}
} // namespace
|
