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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | gcd.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | The file contains the GCD related services in the EFI Boot Services Table.\r | |
18 | The GCD services are used to manage the memory and I/O regions that \r | |
19 | are accessible to the CPU that is executing the DXE core.\r | |
20 | \r | |
21 | --*/\r | |
22 | \r | |
23 | #include <DxeMain.h>\r | |
24 | \r | |
25 | #define MINIMUM_INITIAL_MEMORY_SIZE 0x10000\r | |
26 | \r | |
27 | #define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r | |
28 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \\r | |
29 | EFI_RESOURCE_ATTRIBUTE_TESTED | \\r | |
30 | EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED | \\r | |
31 | EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED | \\r | |
32 | EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED | \\r | |
33 | EFI_RESOURCE_ATTRIBUTE_16_BIT_IO | \\r | |
34 | EFI_RESOURCE_ATTRIBUTE_32_BIT_IO | \\r | |
35 | EFI_RESOURCE_ATTRIBUTE_64_BIT_IO ) \r | |
36 | \r | |
37 | #define TESTED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r | |
38 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \\r | |
39 | EFI_RESOURCE_ATTRIBUTE_TESTED )\r | |
40 | \r | |
41 | #define INITIALIZED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r | |
42 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED )\r | |
43 | \r | |
44 | #define PRESENT_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT)\r | |
45 | \r | |
46 | #define INVALID_CPU_ARCH_ATTRIBUTES 0xffffffff\r | |
47 | \r | |
48 | //\r | |
49 | // Module Variables\r | |
50 | //\r | |
51 | EFI_LOCK mGcdMemorySpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (EFI_TPL_NOTIFY);\r | |
52 | EFI_LOCK mGcdIoSpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (EFI_TPL_NOTIFY);\r | |
53 | LIST_ENTRY mGcdMemorySpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdMemorySpaceMap);\r | |
54 | LIST_ENTRY mGcdIoSpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdIoSpaceMap);\r | |
55 | \r | |
56 | EFI_GCD_MAP_ENTRY mGcdMemorySpaceMapEntryTemplate = {\r | |
57 | EFI_GCD_MAP_SIGNATURE,\r | |
58 | { NULL, NULL },\r | |
59 | 0,\r | |
60 | 0,\r | |
61 | 0,\r | |
62 | 0,\r | |
63 | EfiGcdMemoryTypeNonExistent,\r | |
64 | 0,\r | |
65 | NULL,\r | |
66 | NULL\r | |
67 | };\r | |
68 | \r | |
69 | EFI_GCD_MAP_ENTRY mGcdIoSpaceMapEntryTemplate = {\r | |
70 | EFI_GCD_MAP_SIGNATURE,\r | |
71 | { NULL, NULL },\r | |
72 | 0,\r | |
73 | 0,\r | |
74 | 0,\r | |
75 | 0,\r | |
76 | 0,\r | |
77 | EfiGcdIoTypeNonExistent,\r | |
78 | NULL,\r | |
79 | NULL\r | |
80 | };\r | |
81 | \r | |
82 | GCD_ATTRIBUTE_CONVERSION_ENTRY mAttributeConversionTable[] = {\r | |
83 | { EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE, EFI_MEMORY_UC, TRUE },\r | |
84 | { EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED, EFI_MEMORY_UCE, TRUE }, \r | |
85 | { EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE, EFI_MEMORY_WC, TRUE },\r | |
86 | { EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE, EFI_MEMORY_WT, TRUE },\r | |
87 | { EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE, EFI_MEMORY_WB, TRUE },\r | |
88 | { EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED, EFI_MEMORY_RP, TRUE },\r | |
89 | { EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED, EFI_MEMORY_WP, TRUE },\r | |
90 | { EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED, EFI_MEMORY_XP, TRUE },\r | |
91 | { EFI_RESOURCE_ATTRIBUTE_PRESENT, EFI_MEMORY_PRESENT, FALSE },\r | |
92 | { EFI_RESOURCE_ATTRIBUTE_INITIALIZED, EFI_MEMORY_INITIALIZED, FALSE },\r | |
93 | { EFI_RESOURCE_ATTRIBUTE_TESTED, EFI_MEMORY_TESTED, FALSE },\r | |
94 | { 0, 0, FALSE }\r | |
95 | };\r | |
96 | \r | |
97 | VOID\r | |
98 | CoreAcquireGcdMemoryLock (\r | |
99 | VOID\r | |
100 | )\r | |
101 | /*++\r | |
102 | \r | |
103 | Routine Description:\r | |
104 | Acquire memory lock on mGcdMemorySpaceLock\r | |
105 | \r | |
106 | Arguments:\r | |
107 | None\r | |
108 | \r | |
109 | Returns:\r | |
110 | None\r | |
111 | \r | |
112 | --*/\r | |
113 | {\r | |
114 | CoreAcquireLock (&mGcdMemorySpaceLock);\r | |
115 | }\r | |
116 | \r | |
117 | \r | |
118 | VOID\r | |
119 | CoreReleaseGcdMemoryLock (\r | |
120 | VOID\r | |
121 | )\r | |
122 | /*++\r | |
123 | \r | |
124 | Routine Description:\r | |
125 | Release memory lock on mGcdMemorySpaceLock\r | |
126 | \r | |
127 | Arguments:\r | |
128 | None\r | |
129 | \r | |
130 | Returns:\r | |
131 | None\r | |
132 | \r | |
133 | --*/\r | |
134 | {\r | |
135 | CoreReleaseLock (&mGcdMemorySpaceLock);\r | |
136 | }\r | |
137 | \r | |
138 | \r | |
139 | \r | |
140 | VOID\r | |
141 | CoreAcquireGcdIoLock (\r | |
142 | VOID\r | |
143 | )\r | |
144 | /*++\r | |
145 | \r | |
146 | Routine Description:\r | |
147 | Acquire memory lock on mGcdIoSpaceLock\r | |
148 | \r | |
149 | Arguments:\r | |
150 | None\r | |
151 | \r | |
152 | Returns:\r | |
153 | None\r | |
154 | \r | |
155 | --*/\r | |
156 | {\r | |
157 | CoreAcquireLock (&mGcdIoSpaceLock);\r | |
158 | }\r | |
159 | \r | |
160 | \r | |
161 | VOID\r | |
162 | CoreReleaseGcdIoLock (\r | |
163 | VOID\r | |
164 | )\r | |
165 | /*++\r | |
166 | \r | |
167 | Routine Description:\r | |
168 | Release memory lock on mGcdIoSpaceLock\r | |
169 | \r | |
170 | Arguments:\r | |
171 | None\r | |
172 | \r | |
173 | Returns:\r | |
174 | None\r | |
175 | \r | |
176 | --*/\r | |
177 | {\r | |
178 | CoreReleaseLock (&mGcdIoSpaceLock);\r | |
179 | }\r | |
180 | \r | |
181 | \r | |
182 | \r | |
183 | //\r | |
184 | // GCD Initialization Worker Functions\r | |
185 | //\r | |
186 | UINT64\r | |
187 | AlignValue (\r | |
188 | IN UINT64 Value,\r | |
189 | IN UINTN Alignment,\r | |
190 | IN BOOLEAN RoundUp\r | |
191 | )\r | |
192 | /*++\r | |
193 | \r | |
194 | Routine Description:\r | |
195 | \r | |
196 | Aligns a value to the specified boundary.\r | |
197 | \r | |
198 | Arguments:\r | |
199 | \r | |
200 | Value - 64 bit value to align\r | |
201 | Alignment - Log base 2 of the boundary to align Value to\r | |
202 | RoundUp - TRUE if Value is to be rounded up to the nearest aligned boundary. \r | |
203 | FALSE is Value is to be rounded down to the nearest aligned boundary.\r | |
204 | \r | |
205 | Returns:\r | |
206 | \r | |
207 | A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r | |
208 | \r | |
209 | --*/\r | |
210 | {\r | |
211 | UINT64 AlignmentMask;\r | |
212 | \r | |
213 | AlignmentMask = LShiftU64 (1, Alignment) - 1;\r | |
214 | if (RoundUp) {\r | |
215 | Value += AlignmentMask;\r | |
216 | }\r | |
217 | return Value & (~AlignmentMask);\r | |
218 | }\r | |
219 | \r | |
220 | UINT64\r | |
221 | PageAlignAddress (\r | |
222 | IN UINT64 Value\r | |
223 | )\r | |
224 | /*++\r | |
225 | \r | |
226 | Routine Description:\r | |
227 | \r | |
228 | Aligns address to the page boundary.\r | |
229 | \r | |
230 | Arguments:\r | |
231 | \r | |
232 | Value - 64 bit address to align\r | |
233 | \r | |
234 | Returns:\r | |
235 | \r | |
236 | A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r | |
237 | \r | |
238 | --*/\r | |
239 | {\r | |
240 | return AlignValue (Value, EFI_PAGE_SHIFT, TRUE);\r | |
241 | }\r | |
242 | \r | |
243 | UINT64\r | |
244 | PageAlignLength (\r | |
245 | IN UINT64 Value\r | |
246 | )\r | |
247 | /*++\r | |
248 | \r | |
249 | Routine Description:\r | |
250 | \r | |
251 | Aligns length to the page boundary.\r | |
252 | \r | |
253 | Arguments:\r | |
254 | \r | |
255 | Value - 64 bit length to align\r | |
256 | \r | |
257 | Returns:\r | |
258 | \r | |
259 | A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r | |
260 | \r | |
261 | --*/\r | |
262 | {\r | |
263 | return AlignValue (Value, EFI_PAGE_SHIFT, FALSE);\r | |
264 | }\r | |
265 | \r | |
266 | //\r | |
267 | // GCD Memory Space Worker Functions\r | |
268 | //\r | |
269 | EFI_STATUS\r | |
270 | CoreAllocateGcdMapEntry (\r | |
271 | IN OUT EFI_GCD_MAP_ENTRY **TopEntry,\r | |
272 | IN OUT EFI_GCD_MAP_ENTRY **BottomEntry\r | |
273 | )\r | |
274 | /*++\r | |
275 | \r | |
276 | Routine Description:\r | |
277 | \r | |
278 | Allocate pool for two entries.\r | |
279 | \r | |
280 | Arguments:\r | |
281 | \r | |
282 | TopEntry - An entry of GCD map\r | |
283 | BottomEntry - An entry of GCD map\r | |
284 | \r | |
285 | Returns:\r | |
286 | \r | |
287 | EFI_OUT_OF_RESOURCES - No enough buffer to be allocated.\r | |
288 | EFI_SUCCESS - Both entries successfully allocated.\r | |
289 | \r | |
290 | --*/\r | |
291 | {\r | |
292 | *TopEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));\r | |
293 | if (*TopEntry == NULL) {\r | |
294 | return EFI_OUT_OF_RESOURCES;\r | |
295 | }\r | |
296 | \r | |
297 | *BottomEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));\r | |
298 | if (*BottomEntry == NULL) {\r | |
299 | CoreFreePool (*TopEntry);\r | |
300 | return EFI_OUT_OF_RESOURCES;\r | |
301 | }\r | |
302 | \r | |
303 | return EFI_SUCCESS;\r | |
304 | }\r | |
305 | \r | |
306 | EFI_STATUS\r | |
307 | CoreInsertGcdMapEntry (\r | |
308 | IN LIST_ENTRY *Link,\r | |
309 | IN EFI_GCD_MAP_ENTRY *Entry,\r | |
310 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
311 | IN UINT64 Length,\r | |
312 | IN EFI_GCD_MAP_ENTRY *TopEntry,\r | |
313 | IN EFI_GCD_MAP_ENTRY *BottomEntry\r | |
314 | )\r | |
315 | /*++\r | |
316 | \r | |
317 | Routine Description:\r | |
318 | \r | |
319 | Internal function. Inserts a new descriptor into a sorted list\r | |
320 | \r | |
321 | Arguments:\r | |
322 | \r | |
323 | Link - The linked list to insert the range BaseAddress and Length into\r | |
324 | \r | |
325 | Entry - A pointer to the entry that is inserted\r | |
326 | \r | |
327 | BaseAddress - The base address of the new range\r | |
328 | \r | |
329 | Length - The length of the new range in bytes\r | |
330 | \r | |
331 | TopEntry - Top pad entry to insert if needed.\r | |
332 | \r | |
333 | BottomEntry - Bottom pad entry to insert if needed.\r | |
334 | \r | |
335 | Returns:\r | |
336 | \r | |
337 | EFI_SUCCESS - The new range was inserted into the linked list\r | |
338 | \r | |
339 | --*/\r | |
340 | {\r | |
341 | ASSERT (Length != 0);\r | |
342 | ASSERT (TopEntry->Signature == 0);\r | |
343 | ASSERT (BottomEntry->Signature == 0);\r | |
344 | \r | |
345 | if (BaseAddress > Entry->BaseAddress) {\r | |
346 | CopyMem (BottomEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));\r | |
347 | Entry->BaseAddress = BaseAddress;\r | |
348 | BottomEntry->EndAddress = BaseAddress - 1;\r | |
349 | InsertTailList (Link, &BottomEntry->Link);\r | |
350 | } \r | |
351 | \r | |
352 | if ((BaseAddress + Length - 1) < Entry->EndAddress) {\r | |
353 | CopyMem (TopEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));\r | |
354 | TopEntry->BaseAddress = BaseAddress + Length;\r | |
355 | Entry->EndAddress = BaseAddress + Length - 1;\r | |
356 | InsertHeadList (Link, &TopEntry->Link);\r | |
357 | }\r | |
358 | \r | |
359 | return EFI_SUCCESS;\r | |
360 | }\r | |
361 | \r | |
362 | EFI_STATUS\r | |
363 | CoreMergeGcdMapEntry (\r | |
364 | IN LIST_ENTRY *Link,\r | |
365 | IN BOOLEAN Forward,\r | |
366 | IN LIST_ENTRY *Map\r | |
367 | )\r | |
368 | /*++\r | |
369 | \r | |
370 | Routine Description:\r | |
371 | \r | |
372 | Merge the Gcd region specified by Link and its adjacent entry\r | |
373 | \r | |
374 | Arguments:\r | |
375 | \r | |
376 | Link - Specify the entry to be merged (with its adjacent entry).\r | |
377 | \r | |
378 | Forward - Direction (forward or backward).\r | |
379 | \r | |
380 | Map - Boundary.\r | |
381 | \r | |
382 | Returns:\r | |
383 | \r | |
384 | EFI_SUCCESS - Successfully returned.\r | |
385 | \r | |
386 | EFI_UNSUPPORTED - These adjacent regions could not merge.\r | |
387 | \r | |
388 | --*/\r | |
389 | {\r | |
390 | LIST_ENTRY *AdjacentLink;\r | |
391 | EFI_GCD_MAP_ENTRY *Entry;\r | |
392 | EFI_GCD_MAP_ENTRY *AdjacentEntry;\r | |
393 | \r | |
394 | //\r | |
395 | // Get adjacent entry\r | |
396 | //\r | |
397 | if (Forward) {\r | |
398 | AdjacentLink = Link->ForwardLink;\r | |
399 | } else {\r | |
400 | AdjacentLink = Link->BackLink;\r | |
401 | }\r | |
402 | \r | |
403 | //\r | |
404 | // If AdjacentLink is the head of the list, then no merge can be performed\r | |
405 | //\r | |
406 | if (AdjacentLink == Map) {\r | |
407 | return EFI_SUCCESS;\r | |
408 | }\r | |
409 | \r | |
410 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
411 | AdjacentEntry = CR (AdjacentLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
412 | \r | |
413 | if (Entry->Capabilities != AdjacentEntry->Capabilities) {\r | |
414 | return EFI_UNSUPPORTED;\r | |
415 | }\r | |
416 | if (Entry->Attributes != AdjacentEntry->Attributes) {\r | |
417 | return EFI_UNSUPPORTED;\r | |
418 | }\r | |
419 | if (Entry->GcdMemoryType != AdjacentEntry->GcdMemoryType) {\r | |
420 | return EFI_UNSUPPORTED;\r | |
421 | }\r | |
422 | if (Entry->GcdIoType != AdjacentEntry->GcdIoType) {\r | |
423 | return EFI_UNSUPPORTED;\r | |
424 | }\r | |
425 | if (Entry->ImageHandle != AdjacentEntry->ImageHandle) {\r | |
426 | return EFI_UNSUPPORTED;\r | |
427 | }\r | |
428 | if (Entry->DeviceHandle != AdjacentEntry->DeviceHandle) {\r | |
429 | return EFI_UNSUPPORTED;\r | |
430 | }\r | |
431 | \r | |
432 | if (Forward) {\r | |
433 | Entry->EndAddress = AdjacentEntry->EndAddress;\r | |
434 | } else {\r | |
435 | Entry->BaseAddress = AdjacentEntry->BaseAddress;\r | |
436 | }\r | |
437 | RemoveEntryList (AdjacentLink);\r | |
438 | CoreFreePool (AdjacentEntry);\r | |
439 | \r | |
440 | return EFI_SUCCESS;\r | |
441 | }\r | |
442 | \r | |
443 | EFI_STATUS\r | |
444 | CoreCleanupGcdMapEntry (\r | |
445 | IN EFI_GCD_MAP_ENTRY *TopEntry,\r | |
446 | IN EFI_GCD_MAP_ENTRY *BottomEntry,\r | |
447 | IN LIST_ENTRY *StartLink,\r | |
448 | IN LIST_ENTRY *EndLink,\r | |
449 | IN LIST_ENTRY *Map\r | |
450 | )\r | |
451 | /*++\r | |
452 | \r | |
453 | Routine Description:\r | |
454 | \r | |
455 | Merge adjacent entries on total chain.\r | |
456 | \r | |
457 | Arguments:\r | |
458 | \r | |
459 | TopEntry - Top entry of GCD map.\r | |
460 | \r | |
461 | BottomEntry - Bottom entry of GCD map.\r | |
462 | \r | |
463 | StartLink - Start link of the list for this loop.\r | |
464 | \r | |
465 | EndLink - End link of the list for this loop.\r | |
466 | \r | |
467 | Map - Boundary.\r | |
468 | \r | |
469 | Returns:\r | |
470 | \r | |
471 | EFI_SUCCESS - GCD map successfully cleaned up.\r | |
472 | \r | |
473 | --*/\r | |
474 | {\r | |
475 | LIST_ENTRY *Link;\r | |
476 | \r | |
477 | if (TopEntry->Signature == 0) {\r | |
478 | CoreFreePool (TopEntry);\r | |
479 | }\r | |
480 | if (BottomEntry->Signature == 0) {\r | |
481 | CoreFreePool (BottomEntry);\r | |
482 | }\r | |
483 | \r | |
484 | Link = StartLink;\r | |
485 | while (Link != EndLink->ForwardLink) {\r | |
486 | CoreMergeGcdMapEntry (Link, FALSE, Map);\r | |
487 | Link = Link->ForwardLink;\r | |
488 | }\r | |
489 | CoreMergeGcdMapEntry (EndLink, TRUE, Map);\r | |
490 | \r | |
491 | return EFI_SUCCESS;\r | |
492 | }\r | |
493 | \r | |
494 | EFI_STATUS\r | |
495 | CoreSearchGcdMapEntry (\r | |
496 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
497 | IN UINT64 Length,\r | |
498 | OUT LIST_ENTRY **StartLink,\r | |
499 | OUT LIST_ENTRY **EndLink,\r | |
500 | IN LIST_ENTRY *Map\r | |
501 | )\r | |
502 | /*++\r | |
503 | \r | |
504 | Routine Description:\r | |
505 | \r | |
506 | Search a segment of memory space in GCD map. The result is a range of GCD entry list.\r | |
507 | \r | |
508 | Arguments:\r | |
509 | \r | |
510 | BaseAddress - The start address of the segment.\r | |
511 | \r | |
512 | Length - The length of the segment.\r | |
513 | \r | |
514 | StartLink - The first GCD entry involves this segment of memory space.\r | |
515 | \r | |
516 | EndLink - The first GCD entry involves this segment of memory space.\r | |
517 | \r | |
518 | Map - Points to the start entry to search.\r | |
519 | \r | |
520 | Returns:\r | |
521 | \r | |
522 | EFI_SUCCESS - Successfully found the entry.\r | |
523 | \r | |
524 | EFI_NOT_FOUND - Not found.\r | |
525 | \r | |
526 | --*/\r | |
527 | {\r | |
528 | LIST_ENTRY *Link;\r | |
529 | EFI_GCD_MAP_ENTRY *Entry;\r | |
530 | \r | |
531 | ASSERT (Length != 0);\r | |
532 | \r | |
533 | *StartLink = NULL;\r | |
534 | *EndLink = NULL;\r | |
535 | \r | |
536 | Link = Map->ForwardLink;\r | |
537 | while (Link != Map) {\r | |
538 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
539 | if (BaseAddress >= Entry->BaseAddress && BaseAddress <= Entry->EndAddress) {\r | |
540 | *StartLink = Link;\r | |
541 | }\r | |
542 | if (*StartLink != NULL) {\r | |
543 | if ((BaseAddress + Length - 1) >= Entry->BaseAddress && \r | |
544 | (BaseAddress + Length - 1) <= Entry->EndAddress ) {\r | |
545 | *EndLink = Link;\r | |
546 | return EFI_SUCCESS;\r | |
547 | }\r | |
548 | }\r | |
549 | Link = Link->ForwardLink;\r | |
550 | }\r | |
551 | return EFI_NOT_FOUND;\r | |
552 | }\r | |
553 | \r | |
554 | UINTN\r | |
555 | CoreCountGcdMapEntry (\r | |
556 | IN LIST_ENTRY *Map\r | |
557 | )\r | |
558 | /*++\r | |
559 | \r | |
560 | Routine Description:\r | |
561 | \r | |
562 | Count the amount of GCD map entries.\r | |
563 | \r | |
564 | Arguments:\r | |
565 | \r | |
566 | Map - Points to the start entry to do the count loop.\r | |
567 | \r | |
568 | Returns:\r | |
569 | \r | |
570 | The count.\r | |
571 | \r | |
572 | --*/\r | |
573 | {\r | |
574 | UINTN Count;\r | |
575 | LIST_ENTRY *Link;\r | |
576 | \r | |
577 | Count = 0;\r | |
578 | Link = Map->ForwardLink;\r | |
579 | while (Link != Map) {\r | |
580 | Count++;\r | |
581 | Link = Link->ForwardLink;\r | |
582 | }\r | |
583 | return Count;\r | |
584 | }\r | |
585 | \r | |
586 | \r | |
587 | \r | |
588 | UINT64\r | |
589 | ConverToCpuArchAttributes (\r | |
590 | UINT64 Attributes\r | |
591 | ) \r | |
592 | /*++\r | |
593 | \r | |
594 | Routine Description:\r | |
595 | \r | |
596 | Return the memory attribute specified by Attributes\r | |
597 | \r | |
598 | Arguments:\r | |
599 | \r | |
600 | Attributes - A num with some attribute bits on.\r | |
601 | \r | |
602 | Returns:\r | |
603 | \r | |
604 | The enum value of memory attribute.\r | |
605 | \r | |
606 | --*/\r | |
607 | {\r | |
608 | if ( (Attributes & EFI_MEMORY_UC) == EFI_MEMORY_UC) {\r | |
609 | return EFI_MEMORY_UC;\r | |
610 | }\r | |
611 | \r | |
612 | if ( (Attributes & EFI_MEMORY_WC ) == EFI_MEMORY_WC) {\r | |
613 | return EFI_MEMORY_WC;\r | |
614 | }\r | |
615 | \r | |
616 | if ( (Attributes & EFI_MEMORY_WT ) == EFI_MEMORY_WT) {\r | |
617 | return EFI_MEMORY_WT;\r | |
618 | }\r | |
619 | \r | |
620 | if ( (Attributes & EFI_MEMORY_WB) == EFI_MEMORY_WB) {\r | |
621 | return EFI_MEMORY_WB;\r | |
622 | }\r | |
623 | \r | |
624 | if ( (Attributes & EFI_MEMORY_WP) == EFI_MEMORY_WP) {\r | |
625 | return EFI_MEMORY_WP;\r | |
626 | }\r | |
627 | \r | |
628 | return INVALID_CPU_ARCH_ATTRIBUTES;\r | |
629 | \r | |
630 | }\r | |
631 | \r | |
632 | \r | |
633 | EFI_STATUS\r | |
634 | CoreConvertSpace (\r | |
635 | IN UINTN Operation,\r | |
636 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
637 | IN EFI_GCD_IO_TYPE GcdIoType,\r | |
638 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
639 | IN UINT64 Length,\r | |
640 | IN UINT64 Capabilities,\r | |
641 | IN UINT64 Attributes\r | |
642 | )\r | |
643 | /*++\r | |
644 | \r | |
645 | Routine Description:\r | |
646 | \r | |
647 | Do operation on a segment of memory space specified (add, free, remove, change attribute ...).\r | |
648 | \r | |
649 | Arguments:\r | |
650 | \r | |
651 | Operation - The type of the operation\r | |
652 | \r | |
653 | GcdMemoryType - Additional information for the operation\r | |
654 | \r | |
655 | GcdIoType - Additional information for the operation\r | |
656 | \r | |
657 | BaseAddress - Start address of the segment\r | |
658 | \r | |
659 | Length - length of the segment\r | |
660 | \r | |
661 | Capabilities - The alterable attributes of a newly added entry\r | |
662 | \r | |
663 | Attributes - The attributes needs to be set\r | |
664 | \r | |
665 | Returns:\r | |
666 | \r | |
667 | EFI_INVALID_PARAMETER - Length is 0 or address (length) not aligned when setting attribute.\r | |
668 | \r | |
669 | EFI_SUCCESS - Action successfully done.\r | |
670 | \r | |
671 | EFI_UNSUPPORTED - Could not find the proper descriptor on this segment or \r | |
672 | set an upsupported attribute.\r | |
673 | \r | |
674 | EFI_ACCESS_DENIED - Operate on an space non-exist or is used for an image.\r | |
675 | \r | |
676 | EFI_NOT_FOUND - Free a non-using space or remove a non-exist space, and so on.\r | |
677 | \r | |
678 | EFI_OUT_OF_RESOURCES - No buffer could be allocated.\r | |
679 | \r | |
680 | Returns:\r | |
681 | \r | |
682 | --*/\r | |
683 | {\r | |
684 | EFI_STATUS Status;\r | |
685 | LIST_ENTRY *Map;\r | |
686 | LIST_ENTRY *Link;\r | |
687 | EFI_GCD_MAP_ENTRY *Entry;\r | |
688 | EFI_GCD_MAP_ENTRY *TopEntry;\r | |
689 | EFI_GCD_MAP_ENTRY *BottomEntry;\r | |
690 | LIST_ENTRY *StartLink;\r | |
691 | LIST_ENTRY *EndLink;\r | |
692 | \r | |
693 | EFI_CPU_ARCH_PROTOCOL *CpuArch;\r | |
694 | UINT64 CpuArchAttributes;\r | |
695 | \r | |
696 | if (Length == 0) {\r | |
697 | return EFI_INVALID_PARAMETER;\r | |
698 | }\r | |
699 | \r | |
700 | Map = NULL;\r | |
701 | if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r | |
702 | CoreAcquireGcdMemoryLock ();\r | |
703 | Map = &mGcdMemorySpaceMap;\r | |
704 | }\r | |
705 | if (Operation & GCD_IO_SPACE_OPERATION) {\r | |
706 | CoreAcquireGcdIoLock ();\r | |
707 | Map = &mGcdIoSpaceMap;\r | |
708 | }\r | |
709 | \r | |
710 | //\r | |
711 | // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r | |
712 | //\r | |
713 | Status = CoreSearchGcdMapEntry (BaseAddress, Length, &StartLink, &EndLink, Map);\r | |
714 | if (EFI_ERROR (Status)) {\r | |
715 | Status = EFI_UNSUPPORTED;\r | |
716 | \r | |
717 | goto Done;\r | |
718 | }\r | |
719 | \r | |
720 | //\r | |
721 | // Verify that the list of descriptors are unallocated non-existent memory.\r | |
722 | //\r | |
723 | Link = StartLink;\r | |
724 | while (Link != EndLink->ForwardLink) {\r | |
725 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
726 | switch (Operation) {\r | |
727 | //\r | |
728 | // Add operations\r | |
729 | //\r | |
730 | case GCD_ADD_MEMORY_OPERATION:\r | |
731 | if (Entry->GcdMemoryType != EfiGcdMemoryTypeNonExistent ||\r | |
732 | Entry->ImageHandle != NULL ) {\r | |
733 | Status = EFI_ACCESS_DENIED;\r | |
734 | goto Done;\r | |
735 | }\r | |
736 | break;\r | |
737 | case GCD_ADD_IO_OPERATION:\r | |
738 | if (Entry->GcdIoType != EfiGcdIoTypeNonExistent ||\r | |
739 | Entry->ImageHandle != NULL ) {\r | |
740 | Status = EFI_ACCESS_DENIED;\r | |
741 | goto Done;\r | |
742 | }\r | |
743 | break;\r | |
744 | //\r | |
745 | // Free operations\r | |
746 | //\r | |
747 | case GCD_FREE_MEMORY_OPERATION:\r | |
748 | case GCD_FREE_IO_OPERATION:\r | |
749 | if (Entry->ImageHandle == NULL) {\r | |
750 | Status = EFI_NOT_FOUND;\r | |
751 | goto Done;\r | |
752 | }\r | |
753 | break;\r | |
754 | //\r | |
755 | // Remove operations\r | |
756 | //\r | |
757 | case GCD_REMOVE_MEMORY_OPERATION:\r | |
758 | if (Entry->GcdMemoryType == EfiGcdMemoryTypeNonExistent) {\r | |
759 | Status = EFI_NOT_FOUND;\r | |
760 | goto Done;\r | |
761 | }\r | |
762 | if (Entry->ImageHandle != NULL) {\r | |
763 | Status = EFI_ACCESS_DENIED;\r | |
764 | goto Done;\r | |
765 | }\r | |
766 | break;\r | |
767 | case GCD_REMOVE_IO_OPERATION:\r | |
768 | if (Entry->GcdIoType == EfiGcdIoTypeNonExistent) {\r | |
769 | Status = EFI_NOT_FOUND;\r | |
770 | goto Done;\r | |
771 | }\r | |
772 | if (Entry->ImageHandle != NULL) {\r | |
773 | Status = EFI_ACCESS_DENIED;\r | |
774 | goto Done;\r | |
775 | }\r | |
776 | break;\r | |
777 | //\r | |
778 | // Set attribute operations\r | |
779 | //\r | |
780 | case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:\r | |
781 | if (Attributes & EFI_MEMORY_RUNTIME) {\r | |
782 | if ((BaseAddress & EFI_PAGE_MASK) != 0 || (Length & EFI_PAGE_MASK) != 0) {\r | |
783 | Status = EFI_INVALID_PARAMETER;\r | |
784 | \r | |
785 | goto Done;\r | |
786 | }\r | |
787 | }\r | |
788 | if ((Entry->Capabilities & Attributes) != Attributes) {\r | |
789 | Status = EFI_UNSUPPORTED;\r | |
790 | goto Done;\r | |
791 | }\r | |
792 | break;\r | |
793 | }\r | |
794 | Link = Link->ForwardLink;\r | |
795 | }\r | |
796 | \r | |
797 | //\r | |
798 | // Allocate work space to perform this operation\r | |
799 | //\r | |
800 | Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);\r | |
801 | if (EFI_ERROR (Status)) {\r | |
802 | Status = EFI_OUT_OF_RESOURCES;\r | |
803 | goto Done;\r | |
804 | }\r | |
805 | \r | |
806 | //\r | |
807 | //\r | |
808 | //\r | |
809 | if (Operation == GCD_SET_ATTRIBUTES_MEMORY_OPERATION) {\r | |
810 | //\r | |
811 | // Call CPU Arch Protocol to attempt to set attributes on the range\r | |
812 | //\r | |
813 | CpuArchAttributes = ConverToCpuArchAttributes (Attributes);\r | |
814 | if ( CpuArchAttributes != INVALID_CPU_ARCH_ATTRIBUTES ) {\r | |
815 | Status = CoreLocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&CpuArch);\r | |
816 | if (EFI_ERROR (Status)) {\r | |
817 | Status = EFI_ACCESS_DENIED;\r | |
818 | goto Done;\r | |
819 | }\r | |
820 | \r | |
821 | Status = CpuArch->SetMemoryAttributes (\r | |
822 | CpuArch,\r | |
823 | BaseAddress,\r | |
824 | Length,\r | |
825 | CpuArchAttributes\r | |
826 | );\r | |
827 | if (EFI_ERROR (Status)) {\r | |
828 | goto Done;\r | |
829 | }\r | |
830 | }\r | |
831 | \r | |
832 | }\r | |
833 | \r | |
834 | //\r | |
835 | // Convert/Insert the list of descriptors from StartLink to EndLink\r | |
836 | //\r | |
837 | Link = StartLink;\r | |
838 | while (Link != EndLink->ForwardLink) {\r | |
839 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
840 | CoreInsertGcdMapEntry (Link, Entry, BaseAddress, Length, TopEntry, BottomEntry);\r | |
841 | switch (Operation) {\r | |
842 | //\r | |
843 | // Add operations\r | |
844 | //\r | |
845 | case GCD_ADD_MEMORY_OPERATION:\r | |
846 | Entry->GcdMemoryType = GcdMemoryType;\r | |
847 | if (GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {\r | |
848 | Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME | EFI_MEMORY_PORT_IO;\r | |
849 | } else {\r | |
850 | Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME;\r | |
851 | }\r | |
852 | break;\r | |
853 | case GCD_ADD_IO_OPERATION:\r | |
854 | Entry->GcdIoType = GcdIoType;\r | |
855 | break;\r | |
856 | //\r | |
857 | // Free operations\r | |
858 | //\r | |
859 | case GCD_FREE_MEMORY_OPERATION:\r | |
860 | case GCD_FREE_IO_OPERATION:\r | |
861 | Entry->ImageHandle = NULL;\r | |
862 | Entry->DeviceHandle = NULL;\r | |
863 | break;\r | |
864 | //\r | |
865 | // Remove operations\r | |
866 | //\r | |
867 | case GCD_REMOVE_MEMORY_OPERATION:\r | |
868 | Entry->GcdMemoryType = EfiGcdMemoryTypeNonExistent;\r | |
869 | Entry->Capabilities = 0;\r | |
870 | break;\r | |
871 | case GCD_REMOVE_IO_OPERATION:\r | |
872 | Entry->GcdIoType = EfiGcdIoTypeNonExistent;\r | |
873 | break;\r | |
874 | //\r | |
875 | // Set attribute operations\r | |
876 | //\r | |
877 | case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:\r | |
878 | Entry->Attributes = Attributes;\r | |
879 | break;\r | |
880 | }\r | |
881 | Link = Link->ForwardLink;\r | |
882 | }\r | |
883 | \r | |
884 | //\r | |
885 | // Cleanup\r | |
886 | //\r | |
887 | Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);\r | |
888 | \r | |
889 | Done:\r | |
890 | if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r | |
891 | CoreReleaseGcdMemoryLock ();\r | |
892 | }\r | |
893 | if (Operation & GCD_IO_SPACE_OPERATION) {\r | |
894 | CoreReleaseGcdIoLock ();\r | |
895 | }\r | |
896 | \r | |
897 | return Status;\r | |
898 | }\r | |
899 | \r | |
900 | EFI_STATUS\r | |
901 | CoreAllocateSpaceCheckEntry (\r | |
902 | IN UINTN Operation,\r | |
903 | IN EFI_GCD_MAP_ENTRY *Entry,\r | |
904 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
905 | IN EFI_GCD_IO_TYPE GcdIoType\r | |
906 | )\r | |
907 | /*++\r | |
908 | \r | |
909 | Routine Description:\r | |
910 | \r | |
911 | Check whether an entry could be used to allocate space.\r | |
912 | \r | |
913 | Arguments:\r | |
914 | \r | |
915 | Operation - Allocate memory or IO\r | |
916 | \r | |
917 | Entry - The entry to be tested\r | |
918 | \r | |
919 | GcdMemoryType - The desired memory type\r | |
920 | \r | |
921 | GcdIoType - The desired IO type\r | |
922 | \r | |
923 | Returns:\r | |
924 | \r | |
925 | EFI_NOT_FOUND - The memory type does not match or there's an image handle on the entry.\r | |
926 | \r | |
927 | EFI_UNSUPPORTED - The operation unsupported.\r | |
928 | \r | |
929 | EFI_SUCCESS - It's ok for this entry to be used to allocate space.\r | |
930 | \r | |
931 | --*/\r | |
932 | {\r | |
933 | if (Entry->ImageHandle != NULL) {\r | |
934 | return EFI_NOT_FOUND;\r | |
935 | }\r | |
936 | switch (Operation) {\r | |
937 | case GCD_ALLOCATE_MEMORY_OPERATION:\r | |
938 | if (Entry->GcdMemoryType != GcdMemoryType) {\r | |
939 | return EFI_NOT_FOUND;\r | |
940 | }\r | |
941 | break;\r | |
942 | case GCD_ALLOCATE_IO_OPERATION:\r | |
943 | if (Entry->GcdIoType != GcdIoType) {\r | |
944 | return EFI_NOT_FOUND;\r | |
945 | }\r | |
946 | break;\r | |
947 | default:\r | |
948 | return EFI_UNSUPPORTED;\r | |
949 | }\r | |
950 | return EFI_SUCCESS;\r | |
951 | }\r | |
952 | \r | |
953 | EFI_STATUS\r | |
954 | CoreAllocateSpace (\r | |
955 | IN UINTN Operation,\r | |
956 | IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r | |
957 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
958 | IN EFI_GCD_IO_TYPE GcdIoType,\r | |
959 | IN UINTN Alignment,\r | |
960 | IN UINT64 Length,\r | |
961 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r | |
962 | IN EFI_HANDLE ImageHandle,\r | |
963 | IN EFI_HANDLE DeviceHandle OPTIONAL\r | |
964 | )\r | |
965 | /*++\r | |
966 | \r | |
967 | Routine Description:\r | |
968 | \r | |
969 | Allocate space on specified address and length.\r | |
970 | \r | |
971 | Arguments:\r | |
972 | \r | |
973 | Operation - The type of operation (memory or IO)\r | |
974 | \r | |
975 | GcdAllocateType - The type of allocate operation\r | |
976 | \r | |
977 | GcdMemoryType - The desired memory type\r | |
978 | \r | |
979 | GcdIoType - The desired IO type\r | |
980 | \r | |
981 | Alignment - Align with 2^Alignment\r | |
982 | \r | |
983 | Length - Length to allocate\r | |
984 | \r | |
985 | BaseAddress - Base address to allocate\r | |
986 | \r | |
987 | ImageHandle - The image handle consume the allocated space.\r | |
988 | \r | |
989 | DeviceHandle - The device handle consume the allocated space.\r | |
990 | \r | |
991 | Returns:\r | |
992 | \r | |
993 | EFI_INVALID_PARAMETER - Invalid parameter.\r | |
994 | \r | |
995 | EFI_NOT_FOUND - No descriptor for the desired space exists.\r | |
996 | \r | |
997 | EFI_SUCCESS - Space successfully allocated.\r | |
998 | \r | |
999 | --*/\r | |
1000 | {\r | |
1001 | EFI_STATUS Status;\r | |
1002 | EFI_PHYSICAL_ADDRESS AlignmentMask;\r | |
1003 | EFI_PHYSICAL_ADDRESS MaxAddress;\r | |
1004 | LIST_ENTRY *Map;\r | |
1005 | LIST_ENTRY *Link;\r | |
1006 | LIST_ENTRY *SubLink;\r | |
1007 | EFI_GCD_MAP_ENTRY *Entry;\r | |
1008 | EFI_GCD_MAP_ENTRY *TopEntry;\r | |
1009 | EFI_GCD_MAP_ENTRY *BottomEntry;\r | |
1010 | LIST_ENTRY *StartLink;\r | |
1011 | LIST_ENTRY *EndLink;\r | |
1012 | BOOLEAN Found;\r | |
1013 | \r | |
1014 | //\r | |
1015 | // Make sure parameters are valid\r | |
1016 | //\r | |
1017 | if (GcdAllocateType < 0 || GcdAllocateType >= EfiGcdMaxAllocateType) {\r | |
1018 | return EFI_INVALID_PARAMETER;\r | |
1019 | }\r | |
1020 | if (GcdMemoryType < 0 || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {\r | |
1021 | return EFI_INVALID_PARAMETER;\r | |
1022 | }\r | |
1023 | if (GcdIoType < 0 || GcdIoType >= EfiGcdIoTypeMaximum) {\r | |
1024 | return EFI_INVALID_PARAMETER;\r | |
1025 | }\r | |
1026 | if (BaseAddress == NULL) {\r | |
1027 | return EFI_INVALID_PARAMETER;\r | |
1028 | }\r | |
1029 | if (ImageHandle == NULL) {\r | |
1030 | return EFI_INVALID_PARAMETER;\r | |
1031 | }\r | |
1032 | if (Alignment >= 64) {\r | |
1033 | return EFI_NOT_FOUND;\r | |
1034 | }\r | |
1035 | if (Length == 0) {\r | |
1036 | return EFI_INVALID_PARAMETER;\r | |
1037 | }\r | |
1038 | \r | |
1039 | Map = NULL;\r | |
1040 | if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r | |
1041 | CoreAcquireGcdMemoryLock ();\r | |
1042 | Map = &mGcdMemorySpaceMap;\r | |
1043 | }\r | |
1044 | if (Operation & GCD_IO_SPACE_OPERATION) {\r | |
1045 | CoreAcquireGcdIoLock ();\r | |
1046 | Map = &mGcdIoSpaceMap;\r | |
1047 | }\r | |
1048 | \r | |
1049 | Found = FALSE;\r | |
1050 | StartLink = NULL;\r | |
1051 | EndLink = NULL;\r | |
1052 | //\r | |
1053 | // Compute alignment bit mask\r | |
1054 | //\r | |
1055 | AlignmentMask = LShiftU64 (1, Alignment) - 1;\r | |
1056 | \r | |
1057 | if (GcdAllocateType == EfiGcdAllocateAddress) {\r | |
1058 | //\r | |
1059 | // Verify that the BaseAddress passed in is aligned correctly\r | |
1060 | //\r | |
1061 | if ((*BaseAddress & AlignmentMask) != 0) {\r | |
1062 | Status = EFI_NOT_FOUND;\r | |
1063 | goto Done;\r | |
1064 | }\r | |
1065 | \r | |
1066 | //\r | |
1067 | // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r | |
1068 | //\r | |
1069 | Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);\r | |
1070 | if (EFI_ERROR (Status)) {\r | |
1071 | Status = EFI_NOT_FOUND;\r | |
1072 | goto Done;\r | |
1073 | }\r | |
1074 | \r | |
1075 | //\r | |
1076 | // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r | |
1077 | //\r | |
1078 | Link = StartLink;\r | |
1079 | while (Link != EndLink->ForwardLink) {\r | |
1080 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1081 | Link = Link->ForwardLink;\r | |
1082 | Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r | |
1083 | if (EFI_ERROR (Status)) {\r | |
1084 | goto Done;\r | |
1085 | }\r | |
1086 | }\r | |
1087 | Found = TRUE;\r | |
1088 | } else {\r | |
1089 | \r | |
1090 | Entry = CR (Map->BackLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1091 | \r | |
1092 | //\r | |
1093 | // Compute the maximum address to use in the search algorithm\r | |
1094 | //\r | |
1095 | if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchBottomUp ||\r | |
1096 | GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ) {\r | |
3114b334 | 1097 | MaxAddress = *BaseAddress;\r |
878ddf1f | 1098 | } else {\r |
1099 | MaxAddress = Entry->EndAddress;\r | |
1100 | }\r | |
1101 | \r | |
1102 | //\r | |
1103 | // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r | |
1104 | //\r | |
1105 | if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r | |
3114b334 | 1106 | GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r |
878ddf1f | 1107 | Link = Map->BackLink;\r |
1108 | } else {\r | |
1109 | Link = Map->ForwardLink;\r | |
1110 | }\r | |
1111 | while (Link != Map) {\r | |
1112 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1113 | \r | |
1114 | if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r | |
1115 | GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r | |
1116 | Link = Link->BackLink;\r | |
1117 | } else {\r | |
1118 | Link = Link->ForwardLink;\r | |
1119 | }\r | |
1120 | \r | |
1121 | Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r | |
1122 | if (EFI_ERROR (Status)) {\r | |
1123 | continue;\r | |
1124 | }\r | |
1125 | \r | |
1126 | if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r | |
1127 | GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r | |
1128 | if ((Entry->BaseAddress + Length) > MaxAddress) {\r | |
1129 | continue;\r | |
1130 | }\r | |
1131 | if (Length > (Entry->EndAddress + 1)) {\r | |
1132 | Status = EFI_NOT_FOUND;\r | |
1133 | goto Done;\r | |
1134 | }\r | |
1135 | if (Entry->EndAddress > MaxAddress) {\r | |
1136 | *BaseAddress = MaxAddress;\r | |
1137 | } else {\r | |
1138 | *BaseAddress = Entry->EndAddress;\r | |
1139 | }\r | |
1140 | *BaseAddress = (*BaseAddress + 1 - Length) & (~AlignmentMask);\r | |
1141 | } else {\r | |
1142 | *BaseAddress = (Entry->BaseAddress + AlignmentMask) & (~AlignmentMask);\r | |
1143 | if ((*BaseAddress + Length - 1) > MaxAddress) {\r | |
1144 | Status = EFI_NOT_FOUND;\r | |
1145 | goto Done;\r | |
1146 | }\r | |
1147 | }\r | |
1148 | \r | |
1149 | //\r | |
1150 | // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r | |
1151 | //\r | |
1152 | Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);\r | |
1153 | if (EFI_ERROR (Status)) {\r | |
1154 | Status = EFI_NOT_FOUND;\r | |
1155 | goto Done;\r | |
1156 | }\r | |
1157 | \r | |
1158 | Link = StartLink;\r | |
1159 | //\r | |
1160 | // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r | |
1161 | //\r | |
1162 | Found = TRUE;\r | |
1163 | SubLink = StartLink;\r | |
1164 | while (SubLink != EndLink->ForwardLink) {\r | |
1165 | Entry = CR (SubLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1166 | Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r | |
1167 | if (EFI_ERROR (Status)) {\r | |
1168 | Link = SubLink;\r | |
1169 | Found = FALSE;\r | |
1170 | break;\r | |
1171 | }\r | |
1172 | SubLink = SubLink->ForwardLink;\r | |
1173 | }\r | |
1174 | if (Found) {\r | |
1175 | break;\r | |
1176 | }\r | |
1177 | }\r | |
1178 | }\r | |
1179 | if (!Found) {\r | |
1180 | Status = EFI_NOT_FOUND;\r | |
1181 | goto Done;\r | |
1182 | }\r | |
1183 | \r | |
1184 | //\r | |
1185 | // Allocate work space to perform this operation\r | |
1186 | //\r | |
1187 | Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);\r | |
1188 | if (EFI_ERROR (Status)) {\r | |
1189 | Status = EFI_OUT_OF_RESOURCES;\r | |
1190 | goto Done;\r | |
1191 | }\r | |
1192 | \r | |
1193 | //\r | |
1194 | // Convert/Insert the list of descriptors from StartLink to EndLink\r | |
1195 | //\r | |
1196 | Link = StartLink;\r | |
1197 | while (Link != EndLink->ForwardLink) {\r | |
1198 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1199 | CoreInsertGcdMapEntry (Link, Entry, *BaseAddress, Length, TopEntry, BottomEntry);\r | |
1200 | Entry->ImageHandle = ImageHandle;\r | |
1201 | Entry->DeviceHandle = DeviceHandle;\r | |
1202 | Link = Link->ForwardLink;\r | |
1203 | }\r | |
1204 | \r | |
1205 | //\r | |
1206 | // Cleanup\r | |
1207 | //\r | |
1208 | Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);\r | |
1209 | \r | |
1210 | Done:\r | |
1211 | if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r | |
1212 | CoreReleaseGcdMemoryLock ();\r | |
1213 | }\r | |
1214 | if (Operation & GCD_IO_SPACE_OPERATION) {\r | |
1215 | CoreReleaseGcdIoLock ();\r | |
1216 | }\r | |
1217 | \r | |
1218 | return Status;\r | |
1219 | }\r | |
1220 | \r | |
1221 | \r | |
1222 | EFI_STATUS\r | |
1223 | CoreInternalAddMemorySpace (\r | |
1224 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
1225 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1226 | IN UINT64 Length,\r | |
1227 | IN UINT64 Capabilities\r | |
1228 | )\r | |
1229 | /*++\r | |
1230 | \r | |
1231 | Routine Description:\r | |
1232 | \r | |
1233 | Add a segment of memory to GCD map.\r | |
1234 | \r | |
1235 | Arguments:\r | |
1236 | \r | |
1237 | GcdMemoryType - Memory type of the segment.\r | |
1238 | \r | |
1239 | BaseAddress - Base address of the segment.\r | |
1240 | \r | |
1241 | Length - Length of the segment.\r | |
1242 | \r | |
1243 | Capabilities - alterable attributes of the segment.\r | |
1244 | \r | |
1245 | Returns:\r | |
1246 | \r | |
1247 | EFI_INVALID_PARAMETER - Invalid parameters.\r | |
1248 | \r | |
1249 | EFI_SUCCESS - Successfully add a segment of memory space.\r | |
1250 | \r | |
1251 | --*/\r | |
1252 | {\r | |
1253 | //\r | |
1254 | // Make sure parameters are valid\r | |
1255 | //\r | |
1256 | if (GcdMemoryType <= EfiGcdMemoryTypeNonExistent || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {\r | |
1257 | return EFI_INVALID_PARAMETER;\r | |
1258 | }\r | |
1259 | \r | |
1260 | return CoreConvertSpace (GCD_ADD_MEMORY_OPERATION, GcdMemoryType, 0, BaseAddress, Length, Capabilities, 0);\r | |
1261 | }\r | |
1262 | \r | |
1263 | //\r | |
1264 | // GCD Core Services\r | |
1265 | //\r | |
1266 | EFI_STATUS\r | |
1267 | CoreAllocateMemorySpace (\r | |
1268 | IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r | |
1269 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
1270 | IN UINTN Alignment,\r | |
1271 | IN UINT64 Length,\r | |
1272 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r | |
1273 | IN EFI_HANDLE ImageHandle,\r | |
1274 | IN EFI_HANDLE DeviceHandle OPTIONAL\r | |
1275 | )\r | |
1276 | /*++\r | |
1277 | \r | |
1278 | Routine Description:\r | |
1279 | \r | |
1280 | Allocates nonexistent memory, reserved memory, system memory, or memorymapped\r | |
1281 | I/O resources from the global coherency domain of the processor.\r | |
1282 | \r | |
1283 | Arguments:\r | |
1284 | \r | |
1285 | GcdAllocateType - The type of allocate operation\r | |
1286 | \r | |
1287 | GcdMemoryType - The desired memory type\r | |
1288 | \r | |
1289 | Alignment - Align with 2^Alignment\r | |
1290 | \r | |
1291 | Length - Length to allocate\r | |
1292 | \r | |
1293 | BaseAddress - Base address to allocate\r | |
1294 | \r | |
1295 | ImageHandle - The image handle consume the allocated space.\r | |
1296 | \r | |
1297 | DeviceHandle - The device handle consume the allocated space.\r | |
1298 | \r | |
1299 | Returns:\r | |
1300 | \r | |
1301 | EFI_INVALID_PARAMETER - Invalid parameter.\r | |
1302 | \r | |
1303 | EFI_NOT_FOUND - No descriptor contains the desired space.\r | |
1304 | \r | |
1305 | EFI_SUCCESS - Memory space successfully allocated.\r | |
1306 | \r | |
1307 | --*/\r | |
1308 | {\r | |
1309 | return CoreAllocateSpace (\r | |
1310 | GCD_ALLOCATE_MEMORY_OPERATION, \r | |
1311 | GcdAllocateType, \r | |
1312 | GcdMemoryType, \r | |
1313 | 0, \r | |
1314 | Alignment, \r | |
1315 | Length, \r | |
1316 | BaseAddress, \r | |
1317 | ImageHandle, \r | |
1318 | DeviceHandle\r | |
1319 | );\r | |
1320 | }\r | |
1321 | \r | |
1322 | EFI_STATUS\r | |
1323 | CoreAddMemorySpace (\r | |
1324 | IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
1325 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1326 | IN UINT64 Length,\r | |
1327 | IN UINT64 Capabilities\r | |
1328 | )\r | |
1329 | /*++\r | |
1330 | \r | |
1331 | Routine Description:\r | |
1332 | \r | |
1333 | Adds reserved memory, system memory, or memory-mapped I/O resources to the\r | |
1334 | global coherency domain of the processor.\r | |
1335 | \r | |
1336 | Arguments:\r | |
1337 | \r | |
1338 | GcdMemoryType - Memory type of the memory space.\r | |
1339 | \r | |
1340 | BaseAddress - Base address of the memory space.\r | |
1341 | \r | |
1342 | Length - Length of the memory space.\r | |
1343 | \r | |
1344 | Capabilities - alterable attributes of the memory space.\r | |
1345 | \r | |
1346 | Returns:\r | |
1347 | \r | |
1348 | EFI_SUCCESS - Merged this memory space into GCD map. \r | |
1349 | \r | |
1350 | --*/\r | |
1351 | {\r | |
1352 | EFI_STATUS Status;\r | |
1353 | EFI_PHYSICAL_ADDRESS PageBaseAddress;\r | |
1354 | UINT64 PageLength;\r | |
1355 | \r | |
1356 | Status = CoreInternalAddMemorySpace (GcdMemoryType, BaseAddress, Length, Capabilities);\r | |
1357 | \r | |
1358 | if (!EFI_ERROR (Status) && GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {\r | |
1359 | \r | |
1360 | PageBaseAddress = PageAlignLength (BaseAddress);\r | |
1361 | PageLength = PageAlignLength (BaseAddress + Length - PageBaseAddress);\r | |
1362 | \r | |
1363 | Status = CoreAllocateMemorySpace (\r | |
1364 | EfiGcdAllocateAddress,\r | |
1365 | GcdMemoryType,\r | |
1366 | EFI_PAGE_SHIFT, \r | |
1367 | PageLength,\r | |
1368 | &PageBaseAddress,\r | |
1369 | gDxeCoreImageHandle,\r | |
1370 | NULL\r | |
1371 | );\r | |
1372 | \r | |
1373 | if (!EFI_ERROR (Status)) {\r | |
1374 | CoreAddMemoryDescriptor (\r | |
1375 | EfiConventionalMemory,\r | |
1376 | PageBaseAddress,\r | |
1377 | RShiftU64 (PageLength, EFI_PAGE_SHIFT),\r | |
1378 | Capabilities\r | |
1379 | );\r | |
1380 | } else {\r | |
1381 | for (; PageLength != 0; PageLength -= EFI_PAGE_SIZE, PageBaseAddress += EFI_PAGE_SIZE) {\r | |
1382 | Status = CoreAllocateMemorySpace (\r | |
1383 | EfiGcdAllocateAddress,\r | |
1384 | GcdMemoryType,\r | |
1385 | EFI_PAGE_SHIFT, \r | |
1386 | EFI_PAGE_SIZE,\r | |
1387 | &PageBaseAddress,\r | |
1388 | gDxeCoreImageHandle,\r | |
1389 | NULL\r | |
1390 | );\r | |
1391 | \r | |
1392 | if (!EFI_ERROR (Status)) {\r | |
1393 | CoreAddMemoryDescriptor (\r | |
1394 | EfiConventionalMemory,\r | |
1395 | PageBaseAddress,\r | |
1396 | 1,\r | |
1397 | Capabilities\r | |
1398 | );\r | |
1399 | }\r | |
1400 | }\r | |
1401 | }\r | |
1402 | }\r | |
1403 | return Status;\r | |
1404 | }\r | |
1405 | \r | |
1406 | EFI_STATUS\r | |
1407 | CoreFreeMemorySpace (\r | |
1408 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1409 | IN UINT64 Length\r | |
1410 | )\r | |
1411 | /*++\r | |
1412 | \r | |
1413 | Routine Description:\r | |
1414 | \r | |
1415 | Frees nonexistent memory, reserved memory, system memory, or memory-mapped\r | |
1416 | I/O resources from the global coherency domain of the processor.\r | |
1417 | \r | |
1418 | Arguments:\r | |
1419 | \r | |
1420 | BaseAddress - Base address of the memory space.\r | |
1421 | \r | |
1422 | Length - Length of the memory space.\r | |
1423 | \r | |
1424 | Returns:\r | |
1425 | \r | |
1426 | EFI_SUCCESS - Space successfully freed.\r | |
1427 | \r | |
1428 | --*/\r | |
1429 | {\r | |
1430 | return CoreConvertSpace (GCD_FREE_MEMORY_OPERATION, 0, 0, BaseAddress, Length, 0, 0);\r | |
1431 | }\r | |
1432 | \r | |
1433 | EFI_STATUS\r | |
1434 | CoreRemoveMemorySpace (\r | |
1435 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1436 | IN UINT64 Length\r | |
1437 | )\r | |
1438 | /*++\r | |
1439 | \r | |
1440 | Routine Description:\r | |
1441 | \r | |
1442 | Removes reserved memory, system memory, or memory-mapped I/O resources from\r | |
1443 | the global coherency domain of the processor.\r | |
1444 | \r | |
1445 | Arguments:\r | |
1446 | \r | |
1447 | BaseAddress - Base address of the memory space.\r | |
1448 | \r | |
1449 | Length - Length of the memory space.\r | |
1450 | \r | |
1451 | Returns:\r | |
1452 | \r | |
1453 | EFI_SUCCESS - Successfully remove a segment of memory space.\r | |
1454 | \r | |
1455 | --*/\r | |
1456 | {\r | |
1457 | return CoreConvertSpace (GCD_REMOVE_MEMORY_OPERATION, 0, 0, BaseAddress, Length, 0, 0);\r | |
1458 | }\r | |
1459 | \r | |
1460 | VOID\r | |
1461 | BuildMemoryDescriptor (\r | |
1462 | IN OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor,\r | |
1463 | IN EFI_GCD_MAP_ENTRY *Entry\r | |
1464 | )\r | |
1465 | /*++\r | |
1466 | \r | |
1467 | Routine Description:\r | |
1468 | \r | |
1469 | Build a memory descriptor according to an entry.\r | |
1470 | \r | |
1471 | Arguments:\r | |
1472 | \r | |
1473 | Descriptor - The descriptor to be built\r | |
1474 | \r | |
1475 | Entry - According to this entry\r | |
1476 | \r | |
1477 | Returns:\r | |
1478 | \r | |
1479 | None\r | |
1480 | \r | |
1481 | --*/\r | |
1482 | {\r | |
1483 | Descriptor->BaseAddress = Entry->BaseAddress;\r | |
1484 | Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;\r | |
1485 | Descriptor->Capabilities = Entry->Capabilities;\r | |
1486 | Descriptor->Attributes = Entry->Attributes;\r | |
1487 | Descriptor->GcdMemoryType = Entry->GcdMemoryType;\r | |
1488 | Descriptor->ImageHandle = Entry->ImageHandle;\r | |
1489 | Descriptor->DeviceHandle = Entry->DeviceHandle;\r | |
1490 | }\r | |
1491 | \r | |
1492 | EFI_STATUS\r | |
1493 | CoreGetMemorySpaceDescriptor (\r | |
1494 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1495 | OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor\r | |
1496 | )\r | |
1497 | /*++\r | |
1498 | \r | |
1499 | Routine Description:\r | |
1500 | \r | |
1501 | Retrieves the descriptor for a memory region containing a specified address.\r | |
1502 | \r | |
1503 | Arguments:\r | |
1504 | \r | |
1505 | BaseAddress - Specified start address\r | |
1506 | \r | |
1507 | Descriptor - Specified length\r | |
1508 | \r | |
1509 | Returns:\r | |
1510 | \r | |
1511 | EFI_INVALID_PARAMETER - Invalid parameter\r | |
1512 | \r | |
1513 | EFI_SUCCESS - Successfully get memory space descriptor.\r | |
1514 | \r | |
1515 | --*/\r | |
1516 | {\r | |
1517 | EFI_STATUS Status;\r | |
1518 | LIST_ENTRY *StartLink;\r | |
1519 | LIST_ENTRY *EndLink;\r | |
1520 | EFI_GCD_MAP_ENTRY *Entry;\r | |
1521 | \r | |
1522 | //\r | |
1523 | // Make sure parameters are valid\r | |
1524 | //\r | |
1525 | if (Descriptor == NULL) {\r | |
1526 | return EFI_INVALID_PARAMETER;\r | |
1527 | }\r | |
1528 | \r | |
1529 | CoreAcquireGcdMemoryLock ();\r | |
1530 | \r | |
1531 | //\r | |
1532 | // Search for the list of descriptors that contain BaseAddress \r | |
1533 | //\r | |
1534 | Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdMemorySpaceMap);\r | |
1535 | if (EFI_ERROR (Status)) {\r | |
1536 | Status = EFI_NOT_FOUND;\r | |
1537 | } else {\r | |
1538 | //\r | |
1539 | // Copy the contents of the found descriptor into Descriptor\r | |
1540 | //\r | |
1541 | Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1542 | BuildMemoryDescriptor (Descriptor, Entry);\r | |
1543 | }\r | |
1544 | \r | |
1545 | CoreReleaseGcdMemoryLock ();\r | |
1546 | \r | |
1547 | return Status;\r | |
1548 | }\r | |
1549 | \r | |
1550 | EFI_STATUS\r | |
1551 | CoreSetMemorySpaceAttributes (\r | |
1552 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1553 | IN UINT64 Length,\r | |
1554 | IN UINT64 Attributes\r | |
1555 | )\r | |
1556 | /*++\r | |
1557 | \r | |
1558 | Routine Description:\r | |
1559 | \r | |
1560 | Modifies the attributes for a memory region in the global coherency domain of the\r | |
1561 | processor.\r | |
1562 | \r | |
1563 | Arguments:\r | |
1564 | \r | |
1565 | BaseAddress - Specified start address\r | |
1566 | \r | |
1567 | Length - Specified length\r | |
1568 | \r | |
1569 | Attributes - Specified attributes\r | |
1570 | \r | |
1571 | Returns:\r | |
1572 | \r | |
1573 | EFI_SUCCESS - Successfully set attribute of a segment of memory space.\r | |
1574 | \r | |
1575 | --*/\r | |
1576 | {\r | |
1577 | return CoreConvertSpace (GCD_SET_ATTRIBUTES_MEMORY_OPERATION, 0, 0, BaseAddress, Length, 0, Attributes);\r | |
1578 | }\r | |
1579 | \r | |
1580 | EFI_STATUS\r | |
1581 | CoreGetMemorySpaceMap (\r | |
1582 | OUT UINTN *NumberOfDescriptors,\r | |
1583 | OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap\r | |
1584 | )\r | |
1585 | /*++\r | |
1586 | \r | |
1587 | Routine Description:\r | |
1588 | \r | |
1589 | Returns a map of the memory resources in the global coherency domain of the\r | |
1590 | processor.\r | |
1591 | \r | |
1592 | Arguments:\r | |
1593 | \r | |
1594 | NumberOfDescriptors - Number of descriptors.\r | |
1595 | \r | |
1596 | MemorySpaceMap - Descriptor array\r | |
1597 | \r | |
1598 | Returns:\r | |
1599 | \r | |
1600 | EFI_INVALID_PARAMETER - Invalid parameter\r | |
1601 | \r | |
1602 | EFI_OUT_OF_RESOURCES - No enough buffer to allocate\r | |
1603 | \r | |
1604 | EFI_SUCCESS - Successfully get memory space map.\r | |
1605 | \r | |
1606 | --*/\r | |
1607 | {\r | |
1608 | EFI_STATUS Status;\r | |
1609 | LIST_ENTRY *Link;\r | |
1610 | EFI_GCD_MAP_ENTRY *Entry;\r | |
1611 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor;\r | |
1612 | \r | |
1613 | //\r | |
1614 | // Make sure parameters are valid\r | |
1615 | //\r | |
1616 | if (NumberOfDescriptors == NULL) {\r | |
1617 | return EFI_INVALID_PARAMETER;\r | |
1618 | }\r | |
1619 | if (MemorySpaceMap == NULL) {\r | |
1620 | return EFI_INVALID_PARAMETER;\r | |
1621 | }\r | |
1622 | \r | |
1623 | CoreAcquireGcdMemoryLock ();\r | |
1624 | \r | |
1625 | //\r | |
1626 | // Count the number of descriptors\r | |
1627 | //\r | |
1628 | *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdMemorySpaceMap);\r | |
1629 | \r | |
1630 | //\r | |
1631 | // Allocate the MemorySpaceMap\r | |
1632 | //\r | |
1633 | *MemorySpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_MEMORY_SPACE_DESCRIPTOR));\r | |
1634 | if (*MemorySpaceMap == NULL) {\r | |
1635 | Status = EFI_OUT_OF_RESOURCES;\r | |
1636 | goto Done;\r | |
1637 | }\r | |
1638 | \r | |
1639 | //\r | |
1640 | // Fill in the MemorySpaceMap\r | |
1641 | //\r | |
1642 | Descriptor = *MemorySpaceMap;\r | |
1643 | Link = mGcdMemorySpaceMap.ForwardLink;\r | |
1644 | while (Link != &mGcdMemorySpaceMap) {\r | |
1645 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1646 | BuildMemoryDescriptor (Descriptor, Entry);\r | |
1647 | Descriptor++;\r | |
1648 | Link = Link->ForwardLink;\r | |
1649 | }\r | |
1650 | Status = EFI_SUCCESS;\r | |
1651 | \r | |
1652 | Done:\r | |
1653 | CoreReleaseGcdMemoryLock ();\r | |
1654 | return Status;\r | |
1655 | }\r | |
1656 | \r | |
1657 | EFI_STATUS\r | |
1658 | CoreAddIoSpace (\r | |
1659 | IN EFI_GCD_IO_TYPE GcdIoType,\r | |
1660 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1661 | IN UINT64 Length\r | |
1662 | )\r | |
1663 | /*++\r | |
1664 | \r | |
1665 | Routine Description:\r | |
1666 | \r | |
1667 | Adds reserved I/O or I/O resources to the global coherency domain of the processor.\r | |
1668 | \r | |
1669 | Arguments:\r | |
1670 | \r | |
1671 | GcdIoType - IO type of the segment.\r | |
1672 | \r | |
1673 | BaseAddress - Base address of the segment.\r | |
1674 | \r | |
1675 | Length - Length of the segment.\r | |
1676 | \r | |
1677 | Returns:\r | |
1678 | \r | |
1679 | EFI_SUCCESS - Merged this segment into GCD map.\r | |
1680 | EFI_INVALID_PARAMETER - Parameter not valid\r | |
1681 | \r | |
1682 | --*/\r | |
1683 | {\r | |
1684 | //\r | |
1685 | // Make sure parameters are valid\r | |
1686 | //\r | |
1687 | if (GcdIoType <= EfiGcdIoTypeNonExistent || GcdIoType >= EfiGcdIoTypeMaximum) {\r | |
1688 | return EFI_INVALID_PARAMETER;\r | |
1689 | }\r | |
1690 | return CoreConvertSpace (GCD_ADD_IO_OPERATION, 0, GcdIoType, BaseAddress, Length, 0, 0);\r | |
1691 | }\r | |
1692 | \r | |
1693 | EFI_STATUS\r | |
1694 | CoreAllocateIoSpace (\r | |
1695 | IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r | |
1696 | IN EFI_GCD_IO_TYPE GcdIoType,\r | |
1697 | IN UINTN Alignment,\r | |
1698 | IN UINT64 Length,\r | |
1699 | IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r | |
1700 | IN EFI_HANDLE ImageHandle,\r | |
1701 | IN EFI_HANDLE DeviceHandle OPTIONAL\r | |
1702 | )\r | |
1703 | /*++\r | |
1704 | \r | |
1705 | Routine Description:\r | |
1706 | \r | |
1707 | Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency\r | |
1708 | domain of the processor.\r | |
1709 | \r | |
1710 | Arguments:\r | |
1711 | \r | |
1712 | GcdAllocateType - The type of allocate operation\r | |
1713 | \r | |
1714 | GcdIoType - The desired IO type\r | |
1715 | \r | |
1716 | Alignment - Align with 2^Alignment\r | |
1717 | \r | |
1718 | Length - Length to allocate\r | |
1719 | \r | |
1720 | BaseAddress - Base address to allocate\r | |
1721 | \r | |
1722 | ImageHandle - The image handle consume the allocated space.\r | |
1723 | \r | |
1724 | DeviceHandle - The device handle consume the allocated space.\r | |
1725 | \r | |
1726 | Returns:\r | |
1727 | \r | |
1728 | EFI_INVALID_PARAMETER - Invalid parameter.\r | |
1729 | \r | |
1730 | EFI_NOT_FOUND - No descriptor contains the desired space.\r | |
1731 | \r | |
1732 | EFI_SUCCESS - IO space successfully allocated.\r | |
1733 | \r | |
1734 | --*/\r | |
1735 | {\r | |
1736 | return CoreAllocateSpace (\r | |
1737 | GCD_ALLOCATE_IO_OPERATION, \r | |
1738 | GcdAllocateType, \r | |
1739 | 0, \r | |
1740 | GcdIoType, \r | |
1741 | Alignment, \r | |
1742 | Length, \r | |
1743 | BaseAddress, \r | |
1744 | ImageHandle, \r | |
1745 | DeviceHandle\r | |
1746 | );\r | |
1747 | }\r | |
1748 | \r | |
1749 | EFI_STATUS\r | |
1750 | CoreFreeIoSpace (\r | |
1751 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1752 | IN UINT64 Length\r | |
1753 | )\r | |
1754 | /*++\r | |
1755 | \r | |
1756 | Routine Description:\r | |
1757 | \r | |
1758 | Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency\r | |
1759 | domain of the processor.\r | |
1760 | \r | |
1761 | Arguments:\r | |
1762 | \r | |
1763 | BaseAddress - Base address of the segment.\r | |
1764 | \r | |
1765 | Length - Length of the segment.\r | |
1766 | \r | |
1767 | Returns:\r | |
1768 | \r | |
1769 | EFI_SUCCESS - Space successfully freed.\r | |
1770 | \r | |
1771 | --*/\r | |
1772 | {\r | |
1773 | return CoreConvertSpace (GCD_FREE_IO_OPERATION, 0, 0, BaseAddress, Length, 0, 0);\r | |
1774 | }\r | |
1775 | \r | |
1776 | EFI_STATUS\r | |
1777 | CoreRemoveIoSpace (\r | |
1778 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1779 | IN UINT64 Length\r | |
1780 | )\r | |
1781 | /*++\r | |
1782 | \r | |
1783 | Routine Description:\r | |
1784 | \r | |
1785 | Removes reserved I/O or I/O resources from the global coherency domain of the\r | |
1786 | processor.\r | |
1787 | \r | |
1788 | Arguments:\r | |
1789 | \r | |
1790 | BaseAddress - Base address of the segment.\r | |
1791 | \r | |
1792 | Length - Length of the segment.\r | |
1793 | \r | |
1794 | Returns:\r | |
1795 | \r | |
1796 | EFI_SUCCESS - Successfully removed a segment of IO space.\r | |
1797 | \r | |
1798 | --*/\r | |
1799 | {\r | |
1800 | return CoreConvertSpace (GCD_REMOVE_IO_OPERATION, 0, 0, BaseAddress, Length, 0, 0);\r | |
1801 | }\r | |
1802 | \r | |
1803 | VOID\r | |
1804 | BuildIoDescriptor (\r | |
1805 | IN EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor,\r | |
1806 | IN EFI_GCD_MAP_ENTRY *Entry\r | |
1807 | )\r | |
1808 | /*++\r | |
1809 | \r | |
1810 | Routine Description:\r | |
1811 | \r | |
1812 | Build a IO descriptor according to an entry.\r | |
1813 | \r | |
1814 | Arguments:\r | |
1815 | \r | |
1816 | Descriptor - The descriptor to be built\r | |
1817 | \r | |
1818 | Entry - According to this entry\r | |
1819 | \r | |
1820 | Returns:\r | |
1821 | \r | |
1822 | None\r | |
1823 | \r | |
1824 | --*/\r | |
1825 | {\r | |
1826 | Descriptor->BaseAddress = Entry->BaseAddress;\r | |
1827 | Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;\r | |
1828 | Descriptor->GcdIoType = Entry->GcdIoType;\r | |
1829 | Descriptor->ImageHandle = Entry->ImageHandle;\r | |
1830 | Descriptor->DeviceHandle = Entry->DeviceHandle;\r | |
1831 | }\r | |
1832 | \r | |
1833 | EFI_STATUS\r | |
1834 | CoreGetIoSpaceDescriptor (\r | |
1835 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1836 | OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor\r | |
1837 | )\r | |
1838 | /*++\r | |
1839 | \r | |
1840 | Routine Description:\r | |
1841 | \r | |
1842 | Retrieves the descriptor for an I/O region containing a specified address.\r | |
1843 | \r | |
1844 | Arguments:\r | |
1845 | \r | |
1846 | BaseAddress - Specified start address\r | |
1847 | \r | |
1848 | Descriptor - Specified length\r | |
1849 | \r | |
1850 | Returns:\r | |
1851 | \r | |
1852 | EFI_INVALID_PARAMETER - Descriptor is NULL.\r | |
1853 | \r | |
1854 | EFI_SUCCESS - Successfully get the IO space descriptor.\r | |
1855 | \r | |
1856 | --*/\r | |
1857 | {\r | |
1858 | EFI_STATUS Status;\r | |
1859 | LIST_ENTRY *StartLink;\r | |
1860 | LIST_ENTRY *EndLink;\r | |
1861 | EFI_GCD_MAP_ENTRY *Entry;\r | |
1862 | \r | |
1863 | //\r | |
1864 | // Make sure parameters are valid\r | |
1865 | //\r | |
1866 | if (Descriptor == NULL) {\r | |
1867 | return EFI_INVALID_PARAMETER;\r | |
1868 | }\r | |
1869 | \r | |
1870 | CoreAcquireGcdIoLock ();\r | |
1871 | \r | |
1872 | //\r | |
1873 | // Search for the list of descriptors that contain BaseAddress \r | |
1874 | //\r | |
1875 | Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdIoSpaceMap);\r | |
1876 | if (EFI_ERROR (Status)) {\r | |
1877 | Status = EFI_NOT_FOUND;\r | |
1878 | } else {\r | |
1879 | //\r | |
1880 | // Copy the contents of the found descriptor into Descriptor\r | |
1881 | //\r | |
1882 | Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1883 | BuildIoDescriptor (Descriptor, Entry);\r | |
1884 | }\r | |
1885 | \r | |
1886 | CoreReleaseGcdIoLock ();\r | |
1887 | \r | |
1888 | return Status;\r | |
1889 | }\r | |
1890 | \r | |
1891 | EFI_STATUS\r | |
1892 | CoreGetIoSpaceMap (\r | |
1893 | OUT UINTN *NumberOfDescriptors,\r | |
1894 | OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap\r | |
1895 | )\r | |
1896 | /*++\r | |
1897 | \r | |
1898 | Routine Description:\r | |
1899 | \r | |
1900 | Returns a map of the I/O resources in the global coherency domain of the processor.\r | |
1901 | \r | |
1902 | Arguments:\r | |
1903 | \r | |
1904 | NumberOfDescriptors - Number of descriptors.\r | |
1905 | \r | |
1906 | IoSpaceMap - Descriptor array\r | |
1907 | \r | |
1908 | Returns:\r | |
1909 | \r | |
1910 | EFI_INVALID_PARAMETER - Invalid parameter\r | |
1911 | \r | |
1912 | EFI_OUT_OF_RESOURCES - No enough buffer to allocate\r | |
1913 | \r | |
1914 | EFI_SUCCESS - Successfully get IO space map.\r | |
1915 | \r | |
1916 | --*/\r | |
1917 | {\r | |
1918 | EFI_STATUS Status;\r | |
1919 | LIST_ENTRY *Link;\r | |
1920 | EFI_GCD_MAP_ENTRY *Entry;\r | |
1921 | EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor;\r | |
1922 | \r | |
1923 | //\r | |
1924 | // Make sure parameters are valid\r | |
1925 | //\r | |
1926 | if (NumberOfDescriptors == NULL) {\r | |
1927 | return EFI_INVALID_PARAMETER;\r | |
1928 | }\r | |
1929 | if (IoSpaceMap == NULL) {\r | |
1930 | return EFI_INVALID_PARAMETER;\r | |
1931 | }\r | |
1932 | \r | |
1933 | CoreAcquireGcdIoLock ();\r | |
1934 | \r | |
1935 | //\r | |
1936 | // Count the number of descriptors\r | |
1937 | //\r | |
1938 | *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdIoSpaceMap);\r | |
1939 | \r | |
1940 | //\r | |
1941 | // Allocate the IoSpaceMap\r | |
1942 | //\r | |
1943 | *IoSpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_IO_SPACE_DESCRIPTOR));\r | |
1944 | if (*IoSpaceMap == NULL) {\r | |
1945 | Status = EFI_OUT_OF_RESOURCES;\r | |
1946 | goto Done;\r | |
1947 | }\r | |
1948 | \r | |
1949 | //\r | |
1950 | // Fill in the IoSpaceMap\r | |
1951 | //\r | |
1952 | Descriptor = *IoSpaceMap;\r | |
1953 | Link = mGcdIoSpaceMap.ForwardLink;\r | |
1954 | while (Link != &mGcdIoSpaceMap) {\r | |
1955 | Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r | |
1956 | BuildIoDescriptor (Descriptor, Entry);\r | |
1957 | Descriptor++;\r | |
1958 | Link = Link->ForwardLink;\r | |
1959 | }\r | |
1960 | Status = EFI_SUCCESS;\r | |
1961 | \r | |
1962 | Done:\r | |
1963 | CoreReleaseGcdIoLock ();\r | |
1964 | return Status;\r | |
1965 | } \r | |
1966 | \r | |
1967 | UINT64\r | |
1968 | CoreConvertResourceDescriptorHobAttributesToCapabilities (\r | |
1969 | EFI_GCD_MEMORY_TYPE GcdMemoryType,\r | |
1970 | UINT64 Attributes\r | |
1971 | )\r | |
1972 | /*++\r | |
1973 | \r | |
1974 | Routine Description:\r | |
1975 | \r | |
1976 | Converts a Resource Descriptor HOB attributes mask to an EFI Memory Descriptor \r | |
1977 | capabilities mask\r | |
1978 | \r | |
1979 | Arguments:\r | |
1980 | \r | |
1981 | GcdMemoryType - Type of resource in the GCD memory map.\r | |
1982 | Attributes - The attribute mask in the Resource Descriptor HOB.\r | |
1983 | \r | |
1984 | Returns:\r | |
1985 | \r | |
1986 | The capabilities mask for an EFI Memory Descriptor.\r | |
1987 | \r | |
1988 | --*/\r | |
1989 | {\r | |
1990 | UINT64 Capabilities;\r | |
1991 | GCD_ATTRIBUTE_CONVERSION_ENTRY *Conversion;\r | |
1992 | \r | |
1993 | //\r | |
1994 | // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r | |
1995 | //\r | |
1996 | for (Capabilities = 0, Conversion = mAttributeConversionTable; Conversion->Attribute != 0; Conversion++) {\r | |
1997 | if (Conversion->Memory || (GcdMemoryType != EfiGcdMemoryTypeSystemMemory)) {\r | |
1998 | if (Attributes & Conversion->Attribute) {\r | |
1999 | Capabilities |= Conversion->Capability;\r | |
2000 | }\r | |
2001 | }\r | |
2002 | }\r | |
2003 | \r | |
2004 | return Capabilities;\r | |
2005 | }\r | |
2006 | \r | |
2007 | EFI_STATUS\r | |
2008 | CoreInitializeMemoryServices (\r | |
2009 | IN VOID **HobStart,\r | |
2010 | OUT EFI_PHYSICAL_ADDRESS *MemoryBaseAddress,\r | |
2011 | OUT UINT64 *MemoryLength\r | |
2012 | )\r | |
2013 | /*++\r | |
2014 | \r | |
2015 | Routine Description:\r | |
2016 | \r | |
2017 | External function. Initializes the GCD and memory services based on the memory \r | |
2018 | descriptor HOBs. This function is responsible for priming the GCD map and the\r | |
2019 | memory map, so memory allocations and resource allocations can be made. The first\r | |
2020 | part of this function can not depend on any memory services until at least one\r | |
2021 | memory descriptor is provided to the memory services. Then the memory services\r | |
2022 | can be used to intialize the GCD map.\r | |
2023 | \r | |
2024 | Arguments:\r | |
2025 | \r | |
2026 | HobStart - The start address of the HOB.\r | |
2027 | MemoryBaseAddress - Start address of memory region found to init DXE core.\r | |
2028 | MemoryLength - Length of memory region found to init DXE core.\r | |
2029 | \r | |
2030 | Returns:\r | |
2031 | \r | |
2032 | EFI_SUCCESS - Memory services successfully initialized.\r | |
2033 | \r | |
2034 | --*/\r | |
2035 | {\r | |
2036 | EFI_PEI_HOB_POINTERS Hob;\r | |
2037 | EFI_MEMORY_TYPE_INFORMATION *EfiMemoryTypeInformation;\r | |
2038 | UINTN DataSize;\r | |
2039 | BOOLEAN Found;\r | |
2040 | EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r | |
2041 | EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r | |
2042 | EFI_HOB_RESOURCE_DESCRIPTOR *PhitResourceHob;\r | |
2043 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
2044 | UINT64 Length;\r | |
2045 | UINT64 Attributes;\r | |
2046 | UINT64 Capabilities;\r | |
2047 | EFI_PHYSICAL_ADDRESS MaxMemoryBaseAddress;\r | |
2048 | UINT64 MaxMemoryLength;\r | |
2049 | UINT64 MaxMemoryAttributes;\r | |
2050 | EFI_PHYSICAL_ADDRESS MaxAddress;\r | |
2051 | EFI_PHYSICAL_ADDRESS HighAddress;\r | |
2052 | EFI_HOB_RESOURCE_DESCRIPTOR *MaxResourceHob;\r | |
2053 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
2054 | \r | |
2055 | //\r | |
2056 | // Point at the first HOB. This must be the PHIT HOB.\r | |
2057 | //\r | |
2058 | Hob.Raw = *HobStart;\r | |
2059 | ASSERT (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_HANDOFF);\r | |
2060 | \r | |
2061 | //\r | |
2062 | // Initialize the spin locks and maps in the memory services.\r | |
2063 | // Also fill in the memory services into the EFI Boot Services Table\r | |
2064 | //\r | |
2065 | CoreInitializePool ();\r | |
2066 | \r | |
2067 | //\r | |
2068 | // Initialize Local Variables\r | |
2069 | //\r | |
2070 | PhitResourceHob = NULL;\r | |
2071 | MaxResourceHob = NULL;\r | |
2072 | ResourceHob = NULL;\r | |
2073 | BaseAddress = 0;\r | |
2074 | Length = 0;\r | |
2075 | Attributes = 0;\r | |
2076 | MaxMemoryBaseAddress = 0;\r | |
2077 | MaxMemoryLength = 0;\r | |
2078 | MaxMemoryAttributes = 0;\r | |
2079 | \r | |
2080 | //\r | |
2081 | // Cache the PHIT HOB for later use\r | |
2082 | //\r | |
2083 | PhitHob = Hob.HandoffInformationTable;\r | |
2084 | \r | |
2085 | //\r | |
2086 | // See if a Memory Type Information HOB is available\r | |
2087 | //\r | |
2088 | GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);\r | |
2089 | if (GuidHob != NULL) {\r | |
2090 | EfiMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);\r | |
2091 | DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r | |
2092 | if (EfiMemoryTypeInformation != NULL && DataSize > 0 && DataSize < EfiMaxMemoryType * sizeof (EFI_MEMORY_TYPE_INFORMATION)) {\r | |
2093 | CopyMem (&gMemoryTypeInformation, EfiMemoryTypeInformation, DataSize);\r | |
2094 | }\r | |
2095 | }\r | |
2096 | \r | |
2097 | //\r | |
2098 | // Find the Resource Descriptor HOB that contains range FreeMemoryBaseAddress..FreeMemoryLength\r | |
2099 | //\r | |
2100 | Length = 0;\r | |
2101 | Found = FALSE;\r | |
2102 | for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r | |
2103 | \r | |
2104 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
2105 | \r | |
2106 | ResourceHob = Hob.ResourceDescriptor;\r | |
2107 | \r | |
2108 | if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r | |
2109 | (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES ) {\r | |
2110 | \r | |
2111 | if (PhitHob->EfiFreeMemoryBottom >= ResourceHob->PhysicalStart && \r | |
2112 | PhitHob->EfiFreeMemoryTop <= (ResourceHob->PhysicalStart + ResourceHob->ResourceLength) ) {\r | |
2113 | \r | |
2114 | //\r | |
2115 | // Cache the resource descriptor HOB for the memory region described by the PHIT HOB\r | |
2116 | //\r | |
2117 | PhitResourceHob = ResourceHob;\r | |
2118 | Found = TRUE;\r | |
2119 | \r | |
2120 | Attributes = PhitResourceHob->ResourceAttribute;\r | |
2121 | BaseAddress = PageAlignAddress (PhitHob->EfiMemoryTop);\r | |
2122 | Length = PageAlignLength (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - BaseAddress);\r | |
2123 | if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {\r | |
2124 | BaseAddress = PageAlignAddress (PhitHob->EfiFreeMemoryBottom);\r | |
2125 | Length = PageAlignLength (PhitHob->EfiFreeMemoryTop - BaseAddress);\r | |
2126 | if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {\r | |
2127 | BaseAddress = PageAlignAddress (ResourceHob->PhysicalStart);\r | |
2128 | Length = PageAlignLength ((UINT64)((UINTN)*HobStart - BaseAddress));\r | |
2129 | }\r | |
2130 | }\r | |
2131 | break;\r | |
2132 | }\r | |
2133 | }\r | |
2134 | }\r | |
2135 | }\r | |
2136 | \r | |
2137 | //\r | |
2138 | // Assert if a resource descriptor HOB for the memory region described by the PHIT was not found\r | |
2139 | //\r | |
2140 | ASSERT (Found);\r | |
2141 | \r | |
2142 | //\r | |
2143 | // Search all the resource descriptor HOBs from the highest possible addresses down for a memory\r | |
2144 | // region that is big enough to initialize the DXE core. Always skip the PHIT Resource HOB.\r | |
2145 | // The max address must be within the physically addressible range for the processor.\r | |
2146 | //\r | |
2147 | MaxMemoryLength = 0;\r | |
2148 | MaxAddress = EFI_MAX_ADDRESS;\r | |
2149 | do {\r | |
2150 | HighAddress = 0;\r | |
2151 | Found = FALSE;\r | |
2152 | //\r | |
2153 | // Search for a tested memory region that is below MaxAddress\r | |
2154 | //\r | |
2155 | for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r | |
2156 | \r | |
2157 | //\r | |
2158 | // See if this is a resource descriptor HOB that does not contain the PHIT.\r | |
2159 | //\r | |
2160 | if (Hob.ResourceDescriptor != PhitResourceHob && GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
2161 | \r | |
2162 | ResourceHob = Hob.ResourceDescriptor;\r | |
2163 | //\r | |
2164 | // See if this resource descrior HOB describes tested system memory below MaxAddress\r | |
2165 | //\r | |
2166 | if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r | |
2167 | (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES &&\r | |
2168 | ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MaxAddress ) {\r | |
2169 | \r | |
2170 | //\r | |
2171 | // See if this is the highest tested system memory region below MaxAddress\r | |
2172 | //\r | |
2173 | if (ResourceHob->PhysicalStart > HighAddress) {\r | |
2174 | \r | |
2175 | MaxResourceHob = ResourceHob;\r | |
2176 | HighAddress = MaxResourceHob->PhysicalStart;\r | |
2177 | Found = TRUE;\r | |
2178 | }\r | |
2179 | }\r | |
2180 | }\r | |
2181 | }\r | |
2182 | if (Found) {\r | |
2183 | //\r | |
2184 | // Compute the size of the tested memory region below MaxAddrees\r | |
2185 | //\r | |
2186 | MaxMemoryBaseAddress = PageAlignAddress (MaxResourceHob->PhysicalStart);\r | |
2187 | MaxMemoryLength = PageAlignLength (MaxResourceHob->PhysicalStart + MaxResourceHob->ResourceLength - MaxMemoryBaseAddress);\r | |
2188 | MaxMemoryAttributes = MaxResourceHob->ResourceAttribute;\r | |
2189 | }\r | |
2190 | MaxAddress = ResourceHob->PhysicalStart;\r | |
2191 | } while (Found && MaxMemoryLength < MINIMUM_INITIAL_MEMORY_SIZE);\r | |
2192 | \r | |
2193 | //\r | |
2194 | //\r | |
2195 | //\r | |
2196 | if ((Length < MINIMUM_INITIAL_MEMORY_SIZE) ||\r | |
2197 | (MaxMemoryBaseAddress > BaseAddress && MaxMemoryLength >= MINIMUM_INITIAL_MEMORY_SIZE) ) {\r | |
2198 | BaseAddress = MaxMemoryBaseAddress;\r | |
2199 | Length = MaxMemoryLength;\r | |
2200 | Attributes = MaxMemoryAttributes;\r | |
2201 | }\r | |
2202 | \r | |
2203 | //\r | |
2204 | // If no memory regions are found that are big enough to initialize the DXE core, then ASSERT().\r | |
2205 | //\r | |
2206 | ASSERT (Length >= MINIMUM_INITIAL_MEMORY_SIZE);\r | |
2207 | \r | |
2208 | //\r | |
2209 | // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r | |
2210 | //\r | |
2211 | Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (EfiGcdMemoryTypeSystemMemory, Attributes);\r | |
2212 | \r | |
2213 | //\r | |
2214 | // Declare the very first memory region, so the EFI Memory Services are available.\r | |
2215 | //\r | |
2216 | CoreAddMemoryDescriptor (\r | |
2217 | EfiConventionalMemory,\r | |
2218 | BaseAddress,\r | |
2219 | RShiftU64 (Length, EFI_PAGE_SHIFT),\r | |
2220 | Capabilities\r | |
2221 | );\r | |
2222 | \r | |
2223 | *MemoryBaseAddress = BaseAddress;\r | |
2224 | *MemoryLength = Length;\r | |
2225 | \r | |
2226 | return EFI_SUCCESS;\r | |
2227 | }\r | |
2228 | \r | |
2229 | EFI_STATUS\r | |
2230 | CoreInitializeGcdServices (\r | |
2231 | IN VOID **HobStart,\r | |
2232 | IN EFI_PHYSICAL_ADDRESS MemoryBaseAddress,\r | |
2233 | IN UINT64 MemoryLength\r | |
2234 | )\r | |
2235 | /*++\r | |
2236 | \r | |
2237 | Routine Description:\r | |
2238 | \r | |
2239 | External function. Initializes the GCD and memory services based on the memory \r | |
2240 | descriptor HOBs. This function is responsible for priming the GCD map and the\r | |
2241 | memory map, so memory allocations and resource allocations can be made. The first\r | |
2242 | part of this function can not depend on any memory services until at least one\r | |
2243 | memory descriptor is provided to the memory services. Then the memory services\r | |
2244 | can be used to intialize the GCD map.\r | |
2245 | \r | |
2246 | Arguments:\r | |
2247 | \r | |
2248 | HobStart - The start address of the HOB\r | |
2249 | \r | |
2250 | MemoryBaseAddress - Start address of memory region found to init DXE core.\r | |
2251 | \r | |
2252 | MemoryLength - Length of memory region found to init DXE core.\r | |
2253 | \r | |
2254 | \r | |
2255 | Returns:\r | |
2256 | \r | |
2257 | EFI_SUCCESS - GCD services successfully initialized.\r | |
2258 | \r | |
2259 | --*/\r | |
2260 | {\r | |
2261 | EFI_PEI_HOB_POINTERS Hob;\r | |
2262 | VOID *NewHobList;\r | |
2263 | EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r | |
2264 | UINT8 SizeOfMemorySpace;\r | |
2265 | UINT8 SizeOfIoSpace;\r | |
2266 | EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r | |
2267 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
2268 | UINT64 Length;\r | |
2269 | EFI_STATUS Status;\r | |
2270 | EFI_GCD_MAP_ENTRY *Entry;\r | |
2271 | EFI_GCD_MEMORY_TYPE GcdMemoryType;\r | |
2272 | EFI_GCD_IO_TYPE GcdIoType;\r | |
2273 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;\r | |
2274 | EFI_HOB_MEMORY_ALLOCATION *MemoryHob;\r | |
2275 | EFI_HOB_FIRMWARE_VOLUME *FirmwareVolumeHob;\r | |
2276 | UINTN NumberOfDescriptors;\r | |
2277 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;\r | |
2278 | UINTN Index;\r | |
2279 | UINT64 Capabilities;\r | |
2280 | EFI_HOB_CPU * CpuHob;\r | |
2281 | //\r | |
2282 | // Cache the PHIT HOB for later use\r | |
2283 | //\r | |
2284 | PhitHob = (EFI_HOB_HANDOFF_INFO_TABLE *)(*HobStart);\r | |
2285 | \r | |
2286 | //\r | |
2287 | // Get the number of address lines in the I/O and Memory space for the CPU\r | |
2288 | //\r | |
2289 | CpuHob = GetFirstHob (EFI_HOB_TYPE_CPU);\r | |
2290 | ASSERT (CpuHob != NULL);\r | |
2291 | SizeOfMemorySpace = CpuHob->SizeOfMemorySpace;\r | |
2292 | SizeOfIoSpace = CpuHob->SizeOfIoSpace;\r | |
2293 | \r | |
2294 | //\r | |
2295 | // Initialize the GCD Memory Space Map\r | |
2296 | //\r | |
2297 | Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdMemorySpaceMapEntryTemplate);\r | |
2298 | ASSERT (Entry != NULL);\r | |
2299 | \r | |
2300 | Entry->EndAddress = LShiftU64 (1, SizeOfMemorySpace) - 1;\r | |
2301 | \r | |
2302 | InsertHeadList (&mGcdMemorySpaceMap, &Entry->Link);\r | |
2303 | \r | |
2304 | //\r | |
2305 | // Initialize the GCD I/O Space Map\r | |
2306 | //\r | |
2307 | Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdIoSpaceMapEntryTemplate);\r | |
2308 | ASSERT (Entry != NULL);\r | |
2309 | \r | |
2310 | Entry->EndAddress = LShiftU64 (1, SizeOfIoSpace) - 1;\r | |
2311 | \r | |
2312 | InsertHeadList (&mGcdIoSpaceMap, &Entry->Link);\r | |
2313 | \r | |
2314 | //\r | |
2315 | // Walk the HOB list and add all resource descriptors to the GCD \r | |
2316 | //\r | |
2317 | for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r | |
2318 | \r | |
2319 | GcdMemoryType = EfiGcdMemoryTypeNonExistent;\r | |
2320 | GcdIoType = EfiGcdIoTypeNonExistent;\r | |
2321 | \r | |
2322 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
2323 | \r | |
2324 | ResourceHob = Hob.ResourceDescriptor;\r | |
2325 | \r | |
2326 | switch (ResourceHob->ResourceType) {\r | |
2327 | case EFI_RESOURCE_SYSTEM_MEMORY:\r | |
2328 | if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {\r | |
2329 | GcdMemoryType = EfiGcdMemoryTypeSystemMemory;\r | |
2330 | }\r | |
2331 | if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {\r | |
2332 | GcdMemoryType = EfiGcdMemoryTypeReserved;\r | |
2333 | }\r | |
2334 | if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {\r | |
2335 | GcdMemoryType = EfiGcdMemoryTypeReserved;\r | |
2336 | }\r | |
2337 | break;\r | |
2338 | case EFI_RESOURCE_MEMORY_MAPPED_IO:\r | |
2339 | case EFI_RESOURCE_FIRMWARE_DEVICE:\r | |
2340 | GcdMemoryType = EfiGcdMemoryTypeMemoryMappedIo;\r | |
2341 | break;\r | |
2342 | case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:\r | |
2343 | case EFI_RESOURCE_MEMORY_RESERVED:\r | |
2344 | GcdMemoryType = EfiGcdMemoryTypeReserved;\r | |
2345 | break;\r | |
2346 | case EFI_RESOURCE_IO:\r | |
2347 | GcdIoType = EfiGcdIoTypeIo;\r | |
2348 | break;\r | |
2349 | case EFI_RESOURCE_IO_RESERVED:\r | |
2350 | GcdIoType = EfiGcdIoTypeReserved;\r | |
2351 | break;\r | |
2352 | }\r | |
2353 | \r | |
2354 | if (GcdMemoryType != EfiGcdMemoryTypeNonExistent) {\r | |
2355 | \r | |
2356 | //\r | |
2357 | // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r | |
2358 | //\r | |
2359 | Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (\r | |
2360 | GcdMemoryType,\r | |
2361 | ResourceHob->ResourceAttribute\r | |
2362 | );\r | |
2363 | \r | |
2364 | Status = CoreInternalAddMemorySpace (\r | |
2365 | GcdMemoryType,\r | |
2366 | ResourceHob->PhysicalStart,\r | |
2367 | ResourceHob->ResourceLength,\r | |
2368 | Capabilities\r | |
2369 | );\r | |
2370 | }\r | |
2371 | \r | |
2372 | if (GcdIoType != EfiGcdIoTypeNonExistent) {\r | |
2373 | Status = CoreAddIoSpace (\r | |
2374 | GcdIoType,\r | |
2375 | ResourceHob->PhysicalStart,\r | |
2376 | ResourceHob->ResourceLength\r | |
2377 | );\r | |
2378 | }\r | |
2379 | }\r | |
2380 | }\r | |
2381 | \r | |
2382 | //\r | |
2383 | // Allocate first memory region from the GCD by the DXE core\r | |
2384 | //\r | |
2385 | Status = CoreAllocateMemorySpace (\r | |
2386 | EfiGcdAllocateAddress,\r | |
2387 | EfiGcdMemoryTypeSystemMemory,\r | |
2388 | 0,\r | |
2389 | MemoryLength,\r | |
2390 | &MemoryBaseAddress,\r | |
2391 | gDxeCoreImageHandle,\r | |
2392 | NULL\r | |
2393 | );\r | |
2394 | \r | |
2395 | //\r | |
2396 | // Walk the HOB list and allocate all memory space that is consumed by memory allocation HOBs,\r | |
2397 | // and Firmware Volume HOBs. Also update the EFI Memory Map with the memory allocation HOBs.\r | |
2398 | //\r | |
2399 | for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r | |
2400 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_MEMORY_ALLOCATION) {\r | |
2401 | MemoryHob = Hob.MemoryAllocation;\r | |
2402 | BaseAddress = MemoryHob->AllocDescriptor.MemoryBaseAddress;\r | |
2403 | Status = CoreAllocateMemorySpace (\r | |
2404 | EfiGcdAllocateAddress,\r | |
2405 | EfiGcdMemoryTypeSystemMemory, \r | |
2406 | 0,\r | |
2407 | MemoryHob->AllocDescriptor.MemoryLength,\r | |
2408 | &BaseAddress,\r | |
2409 | gDxeCoreImageHandle,\r | |
2410 | NULL\r | |
2411 | );\r | |
2412 | if (!EFI_ERROR (Status)) {\r | |
2413 | Status = CoreGetMemorySpaceDescriptor (MemoryHob->AllocDescriptor.MemoryBaseAddress, &Descriptor);\r | |
2414 | if (!EFI_ERROR (Status)) {\r | |
2415 | CoreAddMemoryDescriptor (\r | |
2416 | MemoryHob->AllocDescriptor.MemoryType,\r | |
2417 | MemoryHob->AllocDescriptor.MemoryBaseAddress,\r | |
2418 | RShiftU64 (MemoryHob->AllocDescriptor.MemoryLength, EFI_PAGE_SHIFT),\r | |
2419 | Descriptor.Capabilities & (~EFI_MEMORY_RUNTIME)\r | |
2420 | );\r | |
2421 | }\r | |
2422 | }\r | |
2423 | }\r | |
2424 | \r | |
2425 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV) {\r | |
2426 | FirmwareVolumeHob = Hob.FirmwareVolume;\r | |
2427 | BaseAddress = FirmwareVolumeHob->BaseAddress;\r | |
2428 | Status = CoreAllocateMemorySpace (\r | |
2429 | EfiGcdAllocateAddress,\r | |
2430 | EfiGcdMemoryTypeMemoryMappedIo, \r | |
2431 | 0,\r | |
2432 | FirmwareVolumeHob->Length,\r | |
2433 | &BaseAddress,\r | |
2434 | gDxeCoreImageHandle,\r | |
2435 | NULL\r | |
2436 | );\r | |
2437 | }\r | |
2438 | }\r | |
2439 | \r | |
2440 | //\r | |
2441 | // Relocate HOB List to an allocated pool buffer.\r | |
2442 | //\r | |
2443 | NewHobList = CoreAllocateCopyPool (\r | |
2444 | (UINTN)PhitHob->EfiFreeMemoryBottom - (UINTN)(*HobStart), \r | |
2445 | *HobStart\r | |
2446 | );\r | |
2447 | ASSERT (NewHobList != NULL);\r | |
2448 | \r | |
2449 | *HobStart = NewHobList;\r | |
2450 | \r | |
2451 | //\r | |
2452 | // Add and allocate the remaining unallocated system memory to the memory services.\r | |
2453 | //\r | |
2454 | Status = CoreGetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);\r | |
2455 | for (Index = 0; Index < NumberOfDescriptors; Index++) {\r | |
2456 | if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {\r | |
2457 | if (MemorySpaceMap[Index].ImageHandle == NULL) {\r | |
2458 | BaseAddress = PageAlignAddress (MemorySpaceMap[Index].BaseAddress);\r | |
2459 | Length = PageAlignLength (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - BaseAddress);\r | |
2460 | CoreAddMemoryDescriptor (\r | |
2461 | EfiConventionalMemory,\r | |
2462 | BaseAddress,\r | |
2463 | RShiftU64 (Length, EFI_PAGE_SHIFT),\r | |
2464 | MemorySpaceMap[Index].Capabilities & (~EFI_MEMORY_RUNTIME)\r | |
2465 | );\r | |
2466 | Status = CoreAllocateMemorySpace (\r | |
2467 | EfiGcdAllocateAddress,\r | |
2468 | EfiGcdMemoryTypeSystemMemory,\r | |
2469 | 0,\r | |
2470 | Length,\r | |
2471 | &BaseAddress,\r | |
2472 | gDxeCoreImageHandle,\r | |
2473 | NULL\r | |
2474 | );\r | |
2475 | }\r | |
2476 | }\r | |
2477 | }\r | |
2478 | CoreFreePool (MemorySpaceMap);\r | |
2479 | \r | |
2480 | return EFI_SUCCESS;\r | |
2481 | }\r |