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1 | /** @file\r | |
2 | ACPI parser\r | |
3 | \r | |
4 | Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.\r | |
5 | Copyright (c) 2022, AMD Incorporated. All rights reserved.\r | |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7 | **/\r | |
8 | \r | |
9 | #include <Uefi.h>\r | |
10 | #include <Library/UefiLib.h>\r | |
11 | #include <Library/UefiBootServicesTableLib.h>\r | |
12 | #include <Library/BaseMemoryLib.h>\r | |
13 | #include "AcpiParser.h"\r | |
14 | #include "AcpiView.h"\r | |
15 | #include "AcpiViewConfig.h"\r | |
16 | \r | |
17 | STATIC UINT32 gIndent;\r | |
18 | STATIC UINT32 mTableErrorCount;\r | |
19 | STATIC UINT32 mTableWarningCount;\r | |
20 | \r | |
21 | STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r | |
22 | \r | |
23 | /**\r | |
24 | An ACPI_PARSER array describing the ACPI header.\r | |
25 | **/\r | |
26 | STATIC CONST ACPI_PARSER AcpiHeaderParser[] = {\r | |
27 | PARSE_ACPI_HEADER (&AcpiHdrInfo)\r | |
28 | };\r | |
29 | \r | |
30 | /**\r | |
31 | This function resets the ACPI table error counter to Zero.\r | |
32 | **/\r | |
33 | VOID\r | |
34 | ResetErrorCount (\r | |
35 | VOID\r | |
36 | )\r | |
37 | {\r | |
38 | mTableErrorCount = 0;\r | |
39 | }\r | |
40 | \r | |
41 | /**\r | |
42 | This function returns the ACPI table error count.\r | |
43 | \r | |
44 | @retval Returns the count of errors detected in the ACPI tables.\r | |
45 | **/\r | |
46 | UINT32\r | |
47 | GetErrorCount (\r | |
48 | VOID\r | |
49 | )\r | |
50 | {\r | |
51 | return mTableErrorCount;\r | |
52 | }\r | |
53 | \r | |
54 | /**\r | |
55 | This function resets the ACPI table warning counter to Zero.\r | |
56 | **/\r | |
57 | VOID\r | |
58 | ResetWarningCount (\r | |
59 | VOID\r | |
60 | )\r | |
61 | {\r | |
62 | mTableWarningCount = 0;\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | This function returns the ACPI table warning count.\r | |
67 | \r | |
68 | @retval Returns the count of warning detected in the ACPI tables.\r | |
69 | **/\r | |
70 | UINT32\r | |
71 | GetWarningCount (\r | |
72 | VOID\r | |
73 | )\r | |
74 | {\r | |
75 | return mTableWarningCount;\r | |
76 | }\r | |
77 | \r | |
78 | /**\r | |
79 | This function increments the ACPI table error counter.\r | |
80 | **/\r | |
81 | VOID\r | |
82 | EFIAPI\r | |
83 | IncrementErrorCount (\r | |
84 | VOID\r | |
85 | )\r | |
86 | {\r | |
87 | mTableErrorCount++;\r | |
88 | }\r | |
89 | \r | |
90 | /**\r | |
91 | This function increments the ACPI table warning counter.\r | |
92 | **/\r | |
93 | VOID\r | |
94 | EFIAPI\r | |
95 | IncrementWarningCount (\r | |
96 | VOID\r | |
97 | )\r | |
98 | {\r | |
99 | mTableWarningCount++;\r | |
100 | }\r | |
101 | \r | |
102 | /**\r | |
103 | This function verifies the ACPI table checksum.\r | |
104 | \r | |
105 | This function verifies the checksum for the ACPI table and optionally\r | |
106 | prints the status.\r | |
107 | \r | |
108 | @param [in] Log If TRUE log the status of the checksum.\r | |
109 | @param [in] Ptr Pointer to the start of the table buffer.\r | |
110 | @param [in] Length The length of the buffer.\r | |
111 | \r | |
112 | @retval TRUE The checksum is OK.\r | |
113 | @retval FALSE The checksum failed.\r | |
114 | **/\r | |
115 | BOOLEAN\r | |
116 | EFIAPI\r | |
117 | VerifyChecksum (\r | |
118 | IN BOOLEAN Log,\r | |
119 | IN UINT8 *Ptr,\r | |
120 | IN UINT32 Length\r | |
121 | )\r | |
122 | {\r | |
123 | UINTN ByteCount;\r | |
124 | UINT8 Checksum;\r | |
125 | UINTN OriginalAttribute;\r | |
126 | \r | |
127 | //\r | |
128 | // set local variables to suppress incorrect compiler/analyzer warnings\r | |
129 | //\r | |
130 | OriginalAttribute = 0;\r | |
131 | ByteCount = 0;\r | |
132 | Checksum = 0;\r | |
133 | \r | |
134 | while (ByteCount < Length) {\r | |
135 | Checksum += *(Ptr++);\r | |
136 | ByteCount++;\r | |
137 | }\r | |
138 | \r | |
139 | if (Log) {\r | |
140 | OriginalAttribute = gST->ConOut->Mode->Attribute;\r | |
141 | if (Checksum == 0) {\r | |
142 | if (GetColourHighlighting ()) {\r | |
143 | gST->ConOut->SetAttribute (\r | |
144 | gST->ConOut,\r | |
145 | EFI_TEXT_ATTR (\r | |
146 | EFI_GREEN,\r | |
147 | ((OriginalAttribute&(BIT4|BIT5|BIT6))>>4)\r | |
148 | )\r | |
149 | );\r | |
150 | }\r | |
151 | \r | |
152 | Print (L"Table Checksum : OK\n\n");\r | |
153 | } else {\r | |
154 | IncrementErrorCount ();\r | |
155 | if (GetColourHighlighting ()) {\r | |
156 | gST->ConOut->SetAttribute (\r | |
157 | gST->ConOut,\r | |
158 | EFI_TEXT_ATTR (\r | |
159 | EFI_RED,\r | |
160 | ((OriginalAttribute&(BIT4|BIT5|BIT6))>>4)\r | |
161 | )\r | |
162 | );\r | |
163 | }\r | |
164 | \r | |
165 | Print (L"Table Checksum : FAILED (0x%X)\n\n", Checksum);\r | |
166 | }\r | |
167 | \r | |
168 | if (GetColourHighlighting ()) {\r | |
169 | gST->ConOut->SetAttribute (gST->ConOut, OriginalAttribute);\r | |
170 | }\r | |
171 | }\r | |
172 | \r | |
173 | return (Checksum == 0);\r | |
174 | }\r | |
175 | \r | |
176 | /**\r | |
177 | This function performs a raw data dump of the ACPI table.\r | |
178 | \r | |
179 | @param [in] Ptr Pointer to the start of the table buffer.\r | |
180 | @param [in] Length The length of the buffer.\r | |
181 | **/\r | |
182 | VOID\r | |
183 | EFIAPI\r | |
184 | DumpRaw (\r | |
185 | IN UINT8 *Ptr,\r | |
186 | IN UINT32 Length\r | |
187 | )\r | |
188 | {\r | |
189 | UINTN ByteCount;\r | |
190 | UINTN PartLineChars;\r | |
191 | UINTN AsciiBufferIndex;\r | |
192 | CHAR8 AsciiBuffer[17];\r | |
193 | \r | |
194 | ByteCount = 0;\r | |
195 | AsciiBufferIndex = 0;\r | |
196 | \r | |
197 | Print (L"Address : 0x%p\n", Ptr);\r | |
198 | Print (L"Length : %d\n", Length);\r | |
199 | \r | |
200 | while (ByteCount < Length) {\r | |
201 | if ((ByteCount & 0x0F) == 0) {\r | |
202 | AsciiBuffer[AsciiBufferIndex] = '\0';\r | |
203 | Print (L" %a\n%08X : ", AsciiBuffer, ByteCount);\r | |
204 | AsciiBufferIndex = 0;\r | |
205 | } else if ((ByteCount & 0x07) == 0) {\r | |
206 | Print (L"- ");\r | |
207 | }\r | |
208 | \r | |
209 | if ((*Ptr >= ' ') && (*Ptr < 0x7F)) {\r | |
210 | AsciiBuffer[AsciiBufferIndex++] = *Ptr;\r | |
211 | } else {\r | |
212 | AsciiBuffer[AsciiBufferIndex++] = '.';\r | |
213 | }\r | |
214 | \r | |
215 | Print (L"%02X ", *Ptr++);\r | |
216 | \r | |
217 | ByteCount++;\r | |
218 | }\r | |
219 | \r | |
220 | // Justify the final line using spaces before printing\r | |
221 | // the ASCII data.\r | |
222 | PartLineChars = (Length & 0x0F);\r | |
223 | if (PartLineChars != 0) {\r | |
224 | PartLineChars = 48 - (PartLineChars * 3);\r | |
225 | if ((Length & 0x0F) <= 8) {\r | |
226 | PartLineChars += 2;\r | |
227 | }\r | |
228 | \r | |
229 | while (PartLineChars > 0) {\r | |
230 | Print (L" ");\r | |
231 | PartLineChars--;\r | |
232 | }\r | |
233 | }\r | |
234 | \r | |
235 | // Print ASCII data for the final line.\r | |
236 | AsciiBuffer[AsciiBufferIndex] = '\0';\r | |
237 | Print (L" %a\n\n", AsciiBuffer);\r | |
238 | }\r | |
239 | \r | |
240 | /**\r | |
241 | This function traces 1 byte of data as specified in the format string.\r | |
242 | \r | |
243 | @param [in] Format The format string for tracing the data.\r | |
244 | @param [in] Ptr Pointer to the start of the buffer.\r | |
245 | **/\r | |
246 | VOID\r | |
247 | EFIAPI\r | |
248 | DumpUint8 (\r | |
249 | IN CONST CHAR16 *Format,\r | |
250 | IN UINT8 *Ptr\r | |
251 | )\r | |
252 | {\r | |
253 | Print (Format, *Ptr);\r | |
254 | }\r | |
255 | \r | |
256 | /**\r | |
257 | This function traces 2 bytes of data as specified in the format string.\r | |
258 | \r | |
259 | @param [in] Format The format string for tracing the data.\r | |
260 | @param [in] Ptr Pointer to the start of the buffer.\r | |
261 | **/\r | |
262 | VOID\r | |
263 | EFIAPI\r | |
264 | DumpUint16 (\r | |
265 | IN CONST CHAR16 *Format,\r | |
266 | IN UINT8 *Ptr\r | |
267 | )\r | |
268 | {\r | |
269 | Print (Format, *(UINT16 *)Ptr);\r | |
270 | }\r | |
271 | \r | |
272 | /**\r | |
273 | This function traces 4 bytes of data as specified in the format string.\r | |
274 | \r | |
275 | @param [in] Format The format string for tracing the data.\r | |
276 | @param [in] Ptr Pointer to the start of the buffer.\r | |
277 | **/\r | |
278 | VOID\r | |
279 | EFIAPI\r | |
280 | DumpUint32 (\r | |
281 | IN CONST CHAR16 *Format,\r | |
282 | IN UINT8 *Ptr\r | |
283 | )\r | |
284 | {\r | |
285 | Print (Format, *(UINT32 *)Ptr);\r | |
286 | }\r | |
287 | \r | |
288 | /**\r | |
289 | This function traces 8 bytes of data as specified by the format string.\r | |
290 | \r | |
291 | @param [in] Format The format string for tracing the data.\r | |
292 | @param [in] Ptr Pointer to the start of the buffer.\r | |
293 | **/\r | |
294 | VOID\r | |
295 | EFIAPI\r | |
296 | DumpUint64 (\r | |
297 | IN CONST CHAR16 *Format,\r | |
298 | IN UINT8 *Ptr\r | |
299 | )\r | |
300 | {\r | |
301 | // Some fields are not aligned and this causes alignment faults\r | |
302 | // on ARM platforms if the compiler generates LDRD instructions.\r | |
303 | // Perform word access so that LDRD instructions are not generated.\r | |
304 | UINT64 Val;\r | |
305 | \r | |
306 | Val = *(UINT32 *)(Ptr + sizeof (UINT32));\r | |
307 | \r | |
308 | Val = LShiftU64 (Val, 32);\r | |
309 | Val |= (UINT64)*(UINT32 *)Ptr;\r | |
310 | \r | |
311 | Print (Format, Val);\r | |
312 | }\r | |
313 | \r | |
314 | /**\r | |
315 | This function traces 3 characters which can be optionally\r | |
316 | formated using the format string if specified.\r | |
317 | \r | |
318 | If no format string is specified the Format must be NULL.\r | |
319 | \r | |
320 | @param [in] Format Optional format string for tracing the data.\r | |
321 | @param [in] Ptr Pointer to the start of the buffer.\r | |
322 | **/\r | |
323 | VOID\r | |
324 | EFIAPI\r | |
325 | Dump3Chars (\r | |
326 | IN CONST CHAR16 *Format OPTIONAL,\r | |
327 | IN UINT8 *Ptr\r | |
328 | )\r | |
329 | {\r | |
330 | Print (\r | |
331 | (Format != NULL) ? Format : L"%c%c%c",\r | |
332 | Ptr[0],\r | |
333 | Ptr[1],\r | |
334 | Ptr[2]\r | |
335 | );\r | |
336 | }\r | |
337 | \r | |
338 | /**\r | |
339 | This function traces 4 characters which can be optionally\r | |
340 | formated using the format string if specified.\r | |
341 | \r | |
342 | If no format string is specified the Format must be NULL.\r | |
343 | \r | |
344 | @param [in] Format Optional format string for tracing the data.\r | |
345 | @param [in] Ptr Pointer to the start of the buffer.\r | |
346 | **/\r | |
347 | VOID\r | |
348 | EFIAPI\r | |
349 | Dump4Chars (\r | |
350 | IN CONST CHAR16 *Format OPTIONAL,\r | |
351 | IN UINT8 *Ptr\r | |
352 | )\r | |
353 | {\r | |
354 | Print (\r | |
355 | (Format != NULL) ? Format : L"%c%c%c%c",\r | |
356 | Ptr[0],\r | |
357 | Ptr[1],\r | |
358 | Ptr[2],\r | |
359 | Ptr[3]\r | |
360 | );\r | |
361 | }\r | |
362 | \r | |
363 | /**\r | |
364 | This function traces 6 characters which can be optionally\r | |
365 | formated using the format string if specified.\r | |
366 | \r | |
367 | If no format string is specified the Format must be NULL.\r | |
368 | \r | |
369 | @param [in] Format Optional format string for tracing the data.\r | |
370 | @param [in] Ptr Pointer to the start of the buffer.\r | |
371 | **/\r | |
372 | VOID\r | |
373 | EFIAPI\r | |
374 | Dump6Chars (\r | |
375 | IN CONST CHAR16 *Format OPTIONAL,\r | |
376 | IN UINT8 *Ptr\r | |
377 | )\r | |
378 | {\r | |
379 | Print (\r | |
380 | (Format != NULL) ? Format : L"%c%c%c%c%c%c",\r | |
381 | Ptr[0],\r | |
382 | Ptr[1],\r | |
383 | Ptr[2],\r | |
384 | Ptr[3],\r | |
385 | Ptr[4],\r | |
386 | Ptr[5]\r | |
387 | );\r | |
388 | }\r | |
389 | \r | |
390 | /**\r | |
391 | This function traces 8 characters which can be optionally\r | |
392 | formated using the format string if specified.\r | |
393 | \r | |
394 | If no format string is specified the Format must be NULL.\r | |
395 | \r | |
396 | @param [in] Format Optional format string for tracing the data.\r | |
397 | @param [in] Ptr Pointer to the start of the buffer.\r | |
398 | **/\r | |
399 | VOID\r | |
400 | EFIAPI\r | |
401 | Dump8Chars (\r | |
402 | IN CONST CHAR16 *Format OPTIONAL,\r | |
403 | IN UINT8 *Ptr\r | |
404 | )\r | |
405 | {\r | |
406 | Print (\r | |
407 | (Format != NULL) ? Format : L"%c%c%c%c%c%c%c%c",\r | |
408 | Ptr[0],\r | |
409 | Ptr[1],\r | |
410 | Ptr[2],\r | |
411 | Ptr[3],\r | |
412 | Ptr[4],\r | |
413 | Ptr[5],\r | |
414 | Ptr[6],\r | |
415 | Ptr[7]\r | |
416 | );\r | |
417 | }\r | |
418 | \r | |
419 | /**\r | |
420 | This function traces 12 characters which can be optionally\r | |
421 | formated using the format string if specified.\r | |
422 | \r | |
423 | If no format string is specified the Format must be NULL.\r | |
424 | \r | |
425 | @param [in] Format Optional format string for tracing the data.\r | |
426 | @param [in] Ptr Pointer to the start of the buffer.\r | |
427 | **/\r | |
428 | VOID\r | |
429 | EFIAPI\r | |
430 | Dump12Chars (\r | |
431 | IN CONST CHAR16 *Format OPTIONAL,\r | |
432 | IN UINT8 *Ptr\r | |
433 | )\r | |
434 | {\r | |
435 | Print (\r | |
436 | (Format != NULL) ? Format : L"%c%c%c%c%c%c%c%c%c%c%c%c",\r | |
437 | Ptr[0],\r | |
438 | Ptr[1],\r | |
439 | Ptr[2],\r | |
440 | Ptr[3],\r | |
441 | Ptr[4],\r | |
442 | Ptr[5],\r | |
443 | Ptr[6],\r | |
444 | Ptr[7],\r | |
445 | Ptr[8],\r | |
446 | Ptr[9],\r | |
447 | Ptr[10],\r | |
448 | Ptr[11]\r | |
449 | );\r | |
450 | }\r | |
451 | \r | |
452 | /**\r | |
453 | This function indents and prints the ACPI table Field Name.\r | |
454 | \r | |
455 | @param [in] Indent Number of spaces to add to the global table indent.\r | |
456 | The global table indent is 0 by default; however\r | |
457 | this value is updated on entry to the ParseAcpi()\r | |
458 | by adding the indent value provided to ParseAcpi()\r | |
459 | and restored back on exit.\r | |
460 | Therefore the total indent in the output is\r | |
461 | dependent on from where this function is called.\r | |
462 | @param [in] FieldName Pointer to the Field Name.\r | |
463 | **/\r | |
464 | VOID\r | |
465 | EFIAPI\r | |
466 | PrintFieldName (\r | |
467 | IN UINT32 Indent,\r | |
468 | IN CONST CHAR16 *FieldName\r | |
469 | )\r | |
470 | {\r | |
471 | Print (\r | |
472 | L"%*a%-*s : ",\r | |
473 | gIndent + Indent,\r | |
474 | "",\r | |
475 | (OUTPUT_FIELD_COLUMN_WIDTH - gIndent - Indent),\r | |
476 | FieldName\r | |
477 | );\r | |
478 | }\r | |
479 | \r | |
480 | /**\r | |
481 | This function is used to parse an ACPI table buffer.\r | |
482 | \r | |
483 | The ACPI table buffer is parsed using the ACPI table parser information\r | |
484 | specified by a pointer to an array of ACPI_PARSER elements. This parser\r | |
485 | function iterates through each item on the ACPI_PARSER array and logs the\r | |
486 | ACPI table fields.\r | |
487 | \r | |
488 | This function can optionally be used to parse ACPI tables and fetch specific\r | |
489 | field values. The ItemPtr member of the ACPI_PARSER structure (where used)\r | |
490 | is updated by this parser function to point to the selected field data\r | |
491 | (e.g. useful for variable length nested fields).\r | |
492 | \r | |
493 | @param [in] Trace Trace the ACPI fields TRUE else only parse the\r | |
494 | table.\r | |
495 | @param [in] Indent Number of spaces to indent the output.\r | |
496 | @param [in] AsciiName Optional pointer to an ASCII string that describes\r | |
497 | the table being parsed.\r | |
498 | @param [in] Ptr Pointer to the start of the buffer.\r | |
499 | @param [in] Length Length of the buffer pointed by Ptr.\r | |
500 | @param [in] Parser Pointer to an array of ACPI_PARSER structure that\r | |
501 | describes the table being parsed.\r | |
502 | @param [in] ParserItems Number of items in the ACPI_PARSER array.\r | |
503 | \r | |
504 | @retval Number of bytes parsed.\r | |
505 | **/\r | |
506 | UINT32\r | |
507 | EFIAPI\r | |
508 | ParseAcpi (\r | |
509 | IN BOOLEAN Trace,\r | |
510 | IN UINT32 Indent,\r | |
511 | IN CONST CHAR8 *AsciiName OPTIONAL,\r | |
512 | IN UINT8 *Ptr,\r | |
513 | IN UINT32 Length,\r | |
514 | IN CONST ACPI_PARSER *Parser,\r | |
515 | IN UINT32 ParserItems\r | |
516 | )\r | |
517 | {\r | |
518 | UINT32 Index;\r | |
519 | UINT32 Offset;\r | |
520 | BOOLEAN HighLight;\r | |
521 | UINTN OriginalAttribute;\r | |
522 | \r | |
523 | //\r | |
524 | // set local variables to suppress incorrect compiler/analyzer warnings\r | |
525 | //\r | |
526 | OriginalAttribute = 0;\r | |
527 | Offset = 0;\r | |
528 | \r | |
529 | // Increment the Indent\r | |
530 | gIndent += Indent;\r | |
531 | \r | |
532 | if (Trace && (AsciiName != NULL)) {\r | |
533 | HighLight = GetColourHighlighting ();\r | |
534 | \r | |
535 | if (HighLight) {\r | |
536 | OriginalAttribute = gST->ConOut->Mode->Attribute;\r | |
537 | gST->ConOut->SetAttribute (\r | |
538 | gST->ConOut,\r | |
539 | EFI_TEXT_ATTR (\r | |
540 | EFI_YELLOW,\r | |
541 | ((OriginalAttribute&(BIT4|BIT5|BIT6))>>4)\r | |
542 | )\r | |
543 | );\r | |
544 | }\r | |
545 | \r | |
546 | Print (\r | |
547 | L"%*a%-*a :\n",\r | |
548 | gIndent,\r | |
549 | "",\r | |
550 | (OUTPUT_FIELD_COLUMN_WIDTH - gIndent),\r | |
551 | AsciiName\r | |
552 | );\r | |
553 | if (HighLight) {\r | |
554 | gST->ConOut->SetAttribute (gST->ConOut, OriginalAttribute);\r | |
555 | }\r | |
556 | }\r | |
557 | \r | |
558 | for (Index = 0; Index < ParserItems; Index++) {\r | |
559 | if ((Offset + Parser[Index].Length) > Length) {\r | |
560 | // For fields outside the buffer length provided, reset any pointers\r | |
561 | // which were supposed to be updated by this function call\r | |
562 | if (Parser[Index].ItemPtr != NULL) {\r | |
563 | *Parser[Index].ItemPtr = NULL;\r | |
564 | }\r | |
565 | \r | |
566 | // We don't parse past the end of the max length specified\r | |
567 | continue;\r | |
568 | }\r | |
569 | \r | |
570 | if (GetConsistencyChecking () &&\r | |
571 | (Offset != Parser[Index].Offset))\r | |
572 | {\r | |
573 | IncrementErrorCount ();\r | |
574 | Print (\r | |
575 | L"\nERROR: %a: Offset Mismatch for %s\n"\r | |
576 | L"CurrentOffset = %d FieldOffset = %d\n",\r | |
577 | AsciiName,\r | |
578 | Parser[Index].NameStr,\r | |
579 | Offset,\r | |
580 | Parser[Index].Offset\r | |
581 | );\r | |
582 | }\r | |
583 | \r | |
584 | if (Trace) {\r | |
585 | // if there is a Formatter function let the function handle\r | |
586 | // the printing else if a Format is specified in the table use\r | |
587 | // the Format for printing\r | |
588 | PrintFieldName (2, Parser[Index].NameStr);\r | |
589 | if (Parser[Index].PrintFormatter != NULL) {\r | |
590 | Parser[Index].PrintFormatter (Parser[Index].Format, Ptr);\r | |
591 | } else if (Parser[Index].Format != NULL) {\r | |
592 | switch (Parser[Index].Length) {\r | |
593 | case 1:\r | |
594 | DumpUint8 (Parser[Index].Format, Ptr);\r | |
595 | break;\r | |
596 | case 2:\r | |
597 | DumpUint16 (Parser[Index].Format, Ptr);\r | |
598 | break;\r | |
599 | case 4:\r | |
600 | DumpUint32 (Parser[Index].Format, Ptr);\r | |
601 | break;\r | |
602 | case 8:\r | |
603 | DumpUint64 (Parser[Index].Format, Ptr);\r | |
604 | break;\r | |
605 | default:\r | |
606 | Print (\r | |
607 | L"\nERROR: %a: CANNOT PARSE THIS FIELD, Field Length = %d\n",\r | |
608 | AsciiName,\r | |
609 | Parser[Index].Length\r | |
610 | );\r | |
611 | } // switch\r | |
612 | }\r | |
613 | \r | |
614 | // Validating only makes sense if we are tracing\r | |
615 | // the parsed table entries, to report by table name.\r | |
616 | if (GetConsistencyChecking () &&\r | |
617 | (Parser[Index].FieldValidator != NULL))\r | |
618 | {\r | |
619 | Parser[Index].FieldValidator (Ptr, Parser[Index].Context);\r | |
620 | }\r | |
621 | \r | |
622 | Print (L"\n");\r | |
623 | } // if (Trace)\r | |
624 | \r | |
625 | if (Parser[Index].ItemPtr != NULL) {\r | |
626 | *Parser[Index].ItemPtr = (VOID *)Ptr;\r | |
627 | }\r | |
628 | \r | |
629 | Ptr += Parser[Index].Length;\r | |
630 | Offset += Parser[Index].Length;\r | |
631 | } // for\r | |
632 | \r | |
633 | // Decrement the Indent\r | |
634 | gIndent -= Indent;\r | |
635 | return Offset;\r | |
636 | }\r | |
637 | \r | |
638 | /**\r | |
639 | An array describing the ACPI Generic Address Structure.\r | |
640 | The GasParser array is used by the ParseAcpi function to parse and/or trace\r | |
641 | the GAS structure.\r | |
642 | **/\r | |
643 | STATIC CONST ACPI_PARSER GasParser[] = {\r | |
644 | { L"Address Space ID", 1, 0, L"0x%x", NULL, NULL, NULL, NULL },\r | |
645 | { L"Register Bit Width", 1, 1, L"0x%x", NULL, NULL, NULL, NULL },\r | |
646 | { L"Register Bit Offset", 1, 2, L"0x%x", NULL, NULL, NULL, NULL },\r | |
647 | { L"Access Size", 1, 3, L"0x%x", NULL, NULL, NULL, NULL },\r | |
648 | { L"Address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL }\r | |
649 | };\r | |
650 | \r | |
651 | /**\r | |
652 | This function indents and traces the GAS structure as described by the GasParser.\r | |
653 | \r | |
654 | @param [in] Ptr Pointer to the start of the buffer.\r | |
655 | @param [in] Indent Number of spaces to indent the output.\r | |
656 | @param [in] Length Length of the GAS structure buffer.\r | |
657 | \r | |
658 | @retval Number of bytes parsed.\r | |
659 | **/\r | |
660 | UINT32\r | |
661 | EFIAPI\r | |
662 | DumpGasStruct (\r | |
663 | IN UINT8 *Ptr,\r | |
664 | IN UINT32 Indent,\r | |
665 | IN UINT32 Length\r | |
666 | )\r | |
667 | {\r | |
668 | Print (L"\n");\r | |
669 | return ParseAcpi (\r | |
670 | TRUE,\r | |
671 | Indent,\r | |
672 | NULL,\r | |
673 | Ptr,\r | |
674 | Length,\r | |
675 | PARSER_PARAMS (GasParser)\r | |
676 | );\r | |
677 | }\r | |
678 | \r | |
679 | /**\r | |
680 | This function traces the GAS structure as described by the GasParser.\r | |
681 | \r | |
682 | @param [in] Format Optional format string for tracing the data.\r | |
683 | @param [in] Ptr Pointer to the start of the buffer.\r | |
684 | **/\r | |
685 | VOID\r | |
686 | EFIAPI\r | |
687 | DumpGas (\r | |
688 | IN CONST CHAR16 *Format OPTIONAL,\r | |
689 | IN UINT8 *Ptr\r | |
690 | )\r | |
691 | {\r | |
692 | DumpGasStruct (Ptr, 2, sizeof (EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE));\r | |
693 | }\r | |
694 | \r | |
695 | /**\r | |
696 | This function traces the ACPI header as described by the AcpiHeaderParser.\r | |
697 | \r | |
698 | @param [in] Ptr Pointer to the start of the buffer.\r | |
699 | \r | |
700 | @retval Number of bytes parsed.\r | |
701 | **/\r | |
702 | UINT32\r | |
703 | EFIAPI\r | |
704 | DumpAcpiHeader (\r | |
705 | IN UINT8 *Ptr\r | |
706 | )\r | |
707 | {\r | |
708 | return ParseAcpi (\r | |
709 | TRUE,\r | |
710 | 0,\r | |
711 | "ACPI Table Header",\r | |
712 | Ptr,\r | |
713 | sizeof (EFI_ACPI_DESCRIPTION_HEADER),\r | |
714 | PARSER_PARAMS (AcpiHeaderParser)\r | |
715 | );\r | |
716 | }\r | |
717 | \r | |
718 | /**\r | |
719 | This function parses the ACPI header as described by the AcpiHeaderParser.\r | |
720 | \r | |
721 | This function optionally returns the signature, length and revision of the\r | |
722 | ACPI table.\r | |
723 | \r | |
724 | @param [in] Ptr Pointer to the start of the buffer.\r | |
725 | @param [out] Signature Gets location of the ACPI table signature.\r | |
726 | @param [out] Length Gets location of the length of the ACPI table.\r | |
727 | @param [out] Revision Gets location of the revision of the ACPI table.\r | |
728 | \r | |
729 | @retval Number of bytes parsed.\r | |
730 | **/\r | |
731 | UINT32\r | |
732 | EFIAPI\r | |
733 | ParseAcpiHeader (\r | |
734 | IN UINT8 *Ptr,\r | |
735 | OUT CONST UINT32 **Signature,\r | |
736 | OUT CONST UINT32 **Length,\r | |
737 | OUT CONST UINT8 **Revision\r | |
738 | )\r | |
739 | {\r | |
740 | UINT32 BytesParsed;\r | |
741 | \r | |
742 | BytesParsed = ParseAcpi (\r | |
743 | FALSE,\r | |
744 | 0,\r | |
745 | NULL,\r | |
746 | Ptr,\r | |
747 | sizeof (EFI_ACPI_DESCRIPTION_HEADER),\r | |
748 | PARSER_PARAMS (AcpiHeaderParser)\r | |
749 | );\r | |
750 | \r | |
751 | *Signature = AcpiHdrInfo.Signature;\r | |
752 | *Length = AcpiHdrInfo.Length;\r | |
753 | *Revision = AcpiHdrInfo.Revision;\r | |
754 | \r | |
755 | return BytesParsed;\r | |
756 | }\r | |
757 | \r | |
758 | /**\r | |
759 | This function is used to parse an ACPI table bitfield buffer.\r | |
760 | \r | |
761 | The ACPI table buffer is parsed using the ACPI table parser information\r | |
762 | specified by a pointer to an array of ACPI_PARSER elements. This parser\r | |
763 | function iterates through each item on the ACPI_PARSER array and logs the ACPI table bitfields.\r | |
764 | \r | |
765 | This function can optionally be used to parse ACPI tables and fetch specific\r | |
766 | field values. The ItemPtr member of the ACPI_PARSER structure (where used)\r | |
767 | is updated by this parser function to point to the selected field data\r | |
768 | (e.g. useful for variable length nested fields).\r | |
769 | \r | |
770 | ItemPtr member of ACPI_PARSER is not supported with this function.\r | |
771 | \r | |
772 | @param [in] Trace Trace the ACPI fields TRUE else only parse the\r | |
773 | table.\r | |
774 | @param [in] Indent Number of spaces to indent the output.\r | |
775 | @param [in] AsciiName Optional pointer to an ASCII string that describes\r | |
776 | the table being parsed.\r | |
777 | @param [in] Ptr Pointer to the start of the buffer.\r | |
778 | @param [in] Length Length in bytes of the buffer pointed by Ptr.\r | |
779 | @param [in] Parser Pointer to an array of ACPI_PARSER structure that\r | |
780 | describes the table being parsed.\r | |
781 | @param [in] ParserItems Number of items in the ACPI_PARSER array.\r | |
782 | \r | |
783 | @retval Number of bits parsed.\r | |
784 | **/\r | |
785 | UINT32\r | |
786 | EFIAPI\r | |
787 | ParseAcpiBitFields (\r | |
788 | IN BOOLEAN Trace,\r | |
789 | IN UINT32 Indent,\r | |
790 | IN CONST CHAR8 *AsciiName OPTIONAL,\r | |
791 | IN UINT8 *Ptr,\r | |
792 | IN UINT32 Length,\r | |
793 | IN CONST ACPI_PARSER *Parser,\r | |
794 | IN UINT32 ParserItems\r | |
795 | )\r | |
796 | {\r | |
797 | UINT32 Index;\r | |
798 | UINT32 Offset;\r | |
799 | BOOLEAN HighLight;\r | |
800 | UINTN OriginalAttribute;\r | |
801 | \r | |
802 | UINT64 Data;\r | |
803 | UINT64 BitsData;\r | |
804 | \r | |
805 | if ((Length == 0) || (Length > 8)) {\r | |
806 | IncrementErrorCount ();\r | |
807 | Print (\r | |
808 | L"\nERROR: Bitfield Length(%d) is zero or exceeding the 64 bit limit.\n",\r | |
809 | Length\r | |
810 | );\r | |
811 | return 0;\r | |
812 | }\r | |
813 | \r | |
814 | //\r | |
815 | // set local variables to suppress incorrect compiler/analyzer warnings\r | |
816 | //\r | |
817 | OriginalAttribute = 0;\r | |
818 | Offset = 0;\r | |
819 | \r | |
820 | // Increment the Indent\r | |
821 | gIndent += Indent;\r | |
822 | \r | |
823 | CopyMem ((VOID *)&BitsData, (VOID *)Ptr, Length);\r | |
824 | if (Trace && (AsciiName != NULL)) {\r | |
825 | HighLight = GetColourHighlighting ();\r | |
826 | \r | |
827 | if (HighLight) {\r | |
828 | OriginalAttribute = gST->ConOut->Mode->Attribute;\r | |
829 | gST->ConOut->SetAttribute (\r | |
830 | gST->ConOut,\r | |
831 | EFI_TEXT_ATTR (\r | |
832 | EFI_YELLOW,\r | |
833 | ((OriginalAttribute&(BIT4|BIT5|BIT6))>>4)\r | |
834 | )\r | |
835 | );\r | |
836 | }\r | |
837 | \r | |
838 | Print (\r | |
839 | L"%*a%-*a :\n",\r | |
840 | gIndent,\r | |
841 | "",\r | |
842 | (OUTPUT_FIELD_COLUMN_WIDTH - gIndent),\r | |
843 | AsciiName\r | |
844 | );\r | |
845 | if (HighLight) {\r | |
846 | gST->ConOut->SetAttribute (gST->ConOut, OriginalAttribute);\r | |
847 | }\r | |
848 | }\r | |
849 | \r | |
850 | for (Index = 0; Index < ParserItems; Index++) {\r | |
851 | if ((Offset + Parser[Index].Length) > (Length * 8)) {\r | |
852 | // For fields outside the buffer length provided, reset any pointers\r | |
853 | // which were supposed to be updated by this function call\r | |
854 | if (Parser[Index].ItemPtr != NULL) {\r | |
855 | *Parser[Index].ItemPtr = NULL;\r | |
856 | }\r | |
857 | \r | |
858 | // We don't parse past the end of the max length specified\r | |
859 | continue;\r | |
860 | }\r | |
861 | \r | |
862 | if (Parser[Index].Length == 0) {\r | |
863 | IncrementErrorCount ();\r | |
864 | // don't parse the bitfield whose length is zero\r | |
865 | Print (\r | |
866 | L"\nERROR: %a: Cannot parse this field, Field Length = %d\n",\r | |
867 | Parser[Index].Length\r | |
868 | );\r | |
869 | continue;\r | |
870 | }\r | |
871 | \r | |
872 | if (GetConsistencyChecking () &&\r | |
873 | (Offset != Parser[Index].Offset))\r | |
874 | {\r | |
875 | IncrementErrorCount ();\r | |
876 | Print (\r | |
877 | L"\nERROR: %a: Offset Mismatch for %s\n"\r | |
878 | L"CurrentOffset = %d FieldOffset = %d\n",\r | |
879 | AsciiName,\r | |
880 | Parser[Index].NameStr,\r | |
881 | Offset,\r | |
882 | Parser[Index].Offset\r | |
883 | );\r | |
884 | }\r | |
885 | \r | |
886 | // extract Bitfield data for the current item\r | |
887 | Data = RShiftU64 (BitsData, Parser[Index].Offset) & ~(LShiftU64 (~0ULL, Parser[Index].Length));\r | |
888 | \r | |
889 | if (Trace) {\r | |
890 | // if there is a Formatter function let the function handle\r | |
891 | // the printing else if a Format is specified in the table use\r | |
892 | // the Format for printing\r | |
893 | PrintFieldName (2, Parser[Index].NameStr);\r | |
894 | if (Parser[Index].PrintFormatter != NULL) {\r | |
895 | Parser[Index].PrintFormatter (Parser[Index].Format, (UINT8 *)&Data);\r | |
896 | } else if (Parser[Index].Format != NULL) {\r | |
897 | // convert bit length to byte length\r | |
898 | switch ((Parser[Index].Length + 7) >> 3) {\r | |
899 | // print the data depends on byte size\r | |
900 | case 1:\r | |
901 | DumpUint8 (Parser[Index].Format, (UINT8 *)&Data);\r | |
902 | break;\r | |
903 | case 2:\r | |
904 | DumpUint16 (Parser[Index].Format, (UINT8 *)&Data);\r | |
905 | break;\r | |
906 | case 3:\r | |
907 | case 4:\r | |
908 | DumpUint32 (Parser[Index].Format, (UINT8 *)&Data);\r | |
909 | break;\r | |
910 | case 5:\r | |
911 | case 6:\r | |
912 | case 7:\r | |
913 | case 8:\r | |
914 | DumpUint64 (Parser[Index].Format, (UINT8 *)&Data);\r | |
915 | break;\r | |
916 | default:\r | |
917 | Print (\r | |
918 | L"\nERROR: %a: CANNOT PARSE THIS FIELD, Field Length = %d\n",\r | |
919 | AsciiName,\r | |
920 | Parser[Index].Length\r | |
921 | );\r | |
922 | } // switch\r | |
923 | }\r | |
924 | \r | |
925 | // Validating only makes sense if we are tracing\r | |
926 | // the parsed table entries, to report by table name.\r | |
927 | if (GetConsistencyChecking () &&\r | |
928 | (Parser[Index].FieldValidator != NULL))\r | |
929 | {\r | |
930 | Parser[Index].FieldValidator ((UINT8 *)&Data, Parser[Index].Context);\r | |
931 | }\r | |
932 | \r | |
933 | Print (L"\n");\r | |
934 | } // if (Trace)\r | |
935 | \r | |
936 | Offset += Parser[Index].Length;\r | |
937 | } // for\r | |
938 | \r | |
939 | // Decrement the Indent\r | |
940 | gIndent -= Indent;\r | |
941 | return Offset;\r | |
942 | }\r |