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[mirror_edk2.git] / MdeModulePkg / Core / Dxe / Gcd / Gcd.c
1 /** @file
2 The file contains the GCD related services in the EFI Boot Services Table.
3 The GCD services are used to manage the memory and I/O regions that
4 are accessible to the CPU that is executing the DXE core.
5
6 Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
7 This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
11
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14
15 **/
16
17 #include "DxeMain.h"
18 #include "Gcd.h"
19
20 #define MINIMUM_INITIAL_MEMORY_SIZE 0x10000
21
22 #define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \
23 EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \
24 EFI_RESOURCE_ATTRIBUTE_TESTED | \
25 EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED | \
26 EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED | \
27 EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED | \
28 EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTED | \
29 EFI_RESOURCE_ATTRIBUTE_16_BIT_IO | \
30 EFI_RESOURCE_ATTRIBUTE_32_BIT_IO | \
31 EFI_RESOURCE_ATTRIBUTE_64_BIT_IO | \
32 EFI_RESOURCE_ATTRIBUTE_PERSISTENT )
33
34 #define TESTED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \
35 EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \
36 EFI_RESOURCE_ATTRIBUTE_TESTED )
37
38 #define INITIALIZED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \
39 EFI_RESOURCE_ATTRIBUTE_INITIALIZED )
40
41 #define PRESENT_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT)
42
43 #define INVALID_CPU_ARCH_ATTRIBUTES 0xffffffff
44
45 //
46 // Module Variables
47 //
48 EFI_LOCK mGcdMemorySpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);
49 EFI_LOCK mGcdIoSpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);
50 LIST_ENTRY mGcdMemorySpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdMemorySpaceMap);
51 LIST_ENTRY mGcdIoSpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdIoSpaceMap);
52
53 EFI_GCD_MAP_ENTRY mGcdMemorySpaceMapEntryTemplate = {
54 EFI_GCD_MAP_SIGNATURE,
55 {
56 NULL,
57 NULL
58 },
59 0,
60 0,
61 0,
62 0,
63 EfiGcdMemoryTypeNonExistent,
64 (EFI_GCD_IO_TYPE) 0,
65 NULL,
66 NULL
67 };
68
69 EFI_GCD_MAP_ENTRY mGcdIoSpaceMapEntryTemplate = {
70 EFI_GCD_MAP_SIGNATURE,
71 {
72 NULL,
73 NULL
74 },
75 0,
76 0,
77 0,
78 0,
79 (EFI_GCD_MEMORY_TYPE) 0,
80 EfiGcdIoTypeNonExistent,
81 NULL,
82 NULL
83 };
84
85 GCD_ATTRIBUTE_CONVERSION_ENTRY mAttributeConversionTable[] = {
86 { EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE, EFI_MEMORY_UC, TRUE },
87 { EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED, EFI_MEMORY_UCE, TRUE },
88 { EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE, EFI_MEMORY_WC, TRUE },
89 { EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE, EFI_MEMORY_WT, TRUE },
90 { EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE, EFI_MEMORY_WB, TRUE },
91 { EFI_RESOURCE_ATTRIBUTE_READ_PROTECTABLE, EFI_MEMORY_RP, TRUE },
92 { EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTABLE, EFI_MEMORY_WP, TRUE },
93 { EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTABLE, EFI_MEMORY_XP, TRUE },
94 { EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTABLE, EFI_MEMORY_RO, TRUE },
95 { EFI_RESOURCE_ATTRIBUTE_PRESENT, EFI_MEMORY_PRESENT, FALSE },
96 { EFI_RESOURCE_ATTRIBUTE_INITIALIZED, EFI_MEMORY_INITIALIZED, FALSE },
97 { EFI_RESOURCE_ATTRIBUTE_TESTED, EFI_MEMORY_TESTED, FALSE },
98 { EFI_RESOURCE_ATTRIBUTE_PERSISTABLE, EFI_MEMORY_NV, TRUE },
99 { EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE, EFI_MEMORY_MORE_RELIABLE, TRUE },
100 { 0, 0, FALSE }
101 };
102
103 ///
104 /// Lookup table used to print GCD Memory Space Map
105 ///
106 GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 *mGcdMemoryTypeNames[] = {
107 "NonExist ", // EfiGcdMemoryTypeNonExistent
108 "Reserved ", // EfiGcdMemoryTypeReserved
109 "SystemMem", // EfiGcdMemoryTypeSystemMemory
110 "MMIO ", // EfiGcdMemoryTypeMemoryMappedIo
111 "PersisMem", // EfiGcdMemoryTypePersistentMemory
112 "MoreRelia", // EfiGcdMemoryTypeMoreReliable
113 "Unknown " // EfiGcdMemoryTypeMaximum
114 };
115
116 ///
117 /// Lookup table used to print GCD I/O Space Map
118 ///
119 GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 *mGcdIoTypeNames[] = {
120 "NonExist", // EfiGcdIoTypeNonExistent
121 "Reserved", // EfiGcdIoTypeReserved
122 "I/O ", // EfiGcdIoTypeIo
123 "Unknown " // EfiGcdIoTypeMaximum
124 };
125
126 ///
127 /// Lookup table used to print GCD Allocation Types
128 ///
129 GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 *mGcdAllocationTypeNames[] = {
130 "AnySearchBottomUp ", // EfiGcdAllocateAnySearchBottomUp
131 "MaxAddressSearchBottomUp ", // EfiGcdAllocateMaxAddressSearchBottomUp
132 "AtAddress ", // EfiGcdAllocateAddress
133 "AnySearchTopDown ", // EfiGcdAllocateAnySearchTopDown
134 "MaxAddressSearchTopDown ", // EfiGcdAllocateMaxAddressSearchTopDown
135 "Unknown " // EfiGcdMaxAllocateType
136 };
137
138 /**
139 Dump the entire contents if the GCD Memory Space Map using DEBUG() macros when
140 PcdDebugPrintErrorLevel has the DEBUG_GCD bit set.
141
142 @param InitialMap TRUE if the initial GCD Memory Map is being dumped. Otherwise, FALSE.
143
144 **/
145 VOID
146 EFIAPI
147 CoreDumpGcdMemorySpaceMap (
148 BOOLEAN InitialMap
149 )
150 {
151 DEBUG_CODE (
152 EFI_STATUS Status;
153 UINTN NumberOfDescriptors;
154 EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
155 UINTN Index;
156
157 Status = CoreGetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
158 ASSERT (Status == EFI_SUCCESS && MemorySpaceMap != NULL);
159
160 if (InitialMap) {
161 DEBUG ((DEBUG_GCD, "GCD:Initial GCD Memory Space Map\n"));
162 }
163 DEBUG ((DEBUG_GCD, "GCDMemType Range Capabilities Attributes \n"));
164 DEBUG ((DEBUG_GCD, "========== ================================= ================ ================\n"));
165 for (Index = 0; Index < NumberOfDescriptors; Index++) {
166 DEBUG ((DEBUG_GCD, "%a %016lx-%016lx %016lx %016lx%c\n",
167 mGcdMemoryTypeNames[MIN (MemorySpaceMap[Index].GcdMemoryType, EfiGcdMemoryTypeMaximum)],
168 MemorySpaceMap[Index].BaseAddress,
169 MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - 1,
170 MemorySpaceMap[Index].Capabilities,
171 MemorySpaceMap[Index].Attributes,
172 MemorySpaceMap[Index].ImageHandle == NULL ? ' ' : '*'
173 ));
174 }
175 DEBUG ((DEBUG_GCD, "\n"));
176 FreePool (MemorySpaceMap);
177 );
178 }
179
180 /**
181 Dump the entire contents if the GCD I/O Space Map using DEBUG() macros when
182 PcdDebugPrintErrorLevel has the DEBUG_GCD bit set.
183
184 @param InitialMap TRUE if the initial GCD I/O Map is being dumped. Otherwise, FALSE.
185
186 **/
187 VOID
188 EFIAPI
189 CoreDumpGcdIoSpaceMap (
190 BOOLEAN InitialMap
191 )
192 {
193 DEBUG_CODE (
194 EFI_STATUS Status;
195 UINTN NumberOfDescriptors;
196 EFI_GCD_IO_SPACE_DESCRIPTOR *IoSpaceMap;
197 UINTN Index;
198
199 Status = CoreGetIoSpaceMap (&NumberOfDescriptors, &IoSpaceMap);
200 ASSERT (Status == EFI_SUCCESS && IoSpaceMap != NULL);
201
202 if (InitialMap) {
203 DEBUG ((DEBUG_GCD, "GCD:Initial GCD I/O Space Map\n"));
204 }
205
206 DEBUG ((DEBUG_GCD, "GCDIoType Range \n"));
207 DEBUG ((DEBUG_GCD, "========== =================================\n"));
208 for (Index = 0; Index < NumberOfDescriptors; Index++) {
209 DEBUG ((DEBUG_GCD, "%a %016lx-%016lx%c\n",
210 mGcdIoTypeNames[MIN (IoSpaceMap[Index].GcdIoType, EfiGcdIoTypeMaximum)],
211 IoSpaceMap[Index].BaseAddress,
212 IoSpaceMap[Index].BaseAddress + IoSpaceMap[Index].Length - 1,
213 IoSpaceMap[Index].ImageHandle == NULL ? ' ' : '*'
214 ));
215 }
216 DEBUG ((DEBUG_GCD, "\n"));
217 FreePool (IoSpaceMap);
218 );
219 }
220
221 /**
222 Validate resource descriptor HOB's attributes.
223
224 If Attributes includes some memory resource's settings, it should include
225 the corresponding capabilites also.
226
227 @param Attributes Resource descriptor HOB attributes.
228
229 **/
230 VOID
231 CoreValidateResourceDescriptorHobAttributes (
232 IN UINT64 Attributes
233 )
234 {
235 ASSERT (((Attributes & EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED) == 0) ||
236 ((Attributes & EFI_RESOURCE_ATTRIBUTE_READ_PROTECTABLE) != 0));
237 ASSERT (((Attributes & EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED) == 0) ||
238 ((Attributes & EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTABLE) != 0));
239 ASSERT (((Attributes & EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED) == 0) ||
240 ((Attributes & EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTABLE) != 0));
241 ASSERT (((Attributes & EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTED) == 0) ||
242 ((Attributes & EFI_RESOURCE_ATTRIBUTE_READ_ONLY_PROTECTABLE) != 0));
243 ASSERT (((Attributes & EFI_RESOURCE_ATTRIBUTE_PERSISTENT) == 0) ||
244 ((Attributes & EFI_RESOURCE_ATTRIBUTE_PERSISTABLE) != 0));
245 }
246
247 /**
248 Acquire memory lock on mGcdMemorySpaceLock.
249
250 **/
251 VOID
252 CoreAcquireGcdMemoryLock (
253 VOID
254 )
255 {
256 CoreAcquireLock (&mGcdMemorySpaceLock);
257 }
258
259
260
261 /**
262 Release memory lock on mGcdMemorySpaceLock.
263
264 **/
265 VOID
266 CoreReleaseGcdMemoryLock (
267 VOID
268 )
269 {
270 CoreReleaseLock (&mGcdMemorySpaceLock);
271 }
272
273
274
275 /**
276 Acquire memory lock on mGcdIoSpaceLock.
277
278 **/
279 VOID
280 CoreAcquireGcdIoLock (
281 VOID
282 )
283 {
284 CoreAcquireLock (&mGcdIoSpaceLock);
285 }
286
287
288 /**
289 Release memory lock on mGcdIoSpaceLock.
290
291 **/
292 VOID
293 CoreReleaseGcdIoLock (
294 VOID
295 )
296 {
297 CoreReleaseLock (&mGcdIoSpaceLock);
298 }
299
300
301
302 //
303 // GCD Initialization Worker Functions
304 //
305 /**
306 Aligns a value to the specified boundary.
307
308 @param Value 64 bit value to align
309 @param Alignment Log base 2 of the boundary to align Value to
310 @param RoundUp TRUE if Value is to be rounded up to the nearest
311 aligned boundary. FALSE is Value is to be
312 rounded down to the nearest aligned boundary.
313
314 @return A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
315
316 **/
317 UINT64
318 AlignValue (
319 IN UINT64 Value,
320 IN UINTN Alignment,
321 IN BOOLEAN RoundUp
322 )
323 {
324 UINT64 AlignmentMask;
325
326 AlignmentMask = LShiftU64 (1, Alignment) - 1;
327 if (RoundUp) {
328 Value += AlignmentMask;
329 }
330 return Value & (~AlignmentMask);
331 }
332
333
334 /**
335 Aligns address to the page boundary.
336
337 @param Value 64 bit address to align
338
339 @return A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
340
341 **/
342 UINT64
343 PageAlignAddress (
344 IN UINT64 Value
345 )
346 {
347 return AlignValue (Value, EFI_PAGE_SHIFT, TRUE);
348 }
349
350
351 /**
352 Aligns length to the page boundary.
353
354 @param Value 64 bit length to align
355
356 @return A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
357
358 **/
359 UINT64
360 PageAlignLength (
361 IN UINT64 Value
362 )
363 {
364 return AlignValue (Value, EFI_PAGE_SHIFT, FALSE);
365 }
366
367 //
368 // GCD Memory Space Worker Functions
369 //
370
371 /**
372 Allocate pool for two entries.
373
374 @param TopEntry An entry of GCD map
375 @param BottomEntry An entry of GCD map
376
377 @retval EFI_OUT_OF_RESOURCES No enough buffer to be allocated.
378 @retval EFI_SUCCESS Both entries successfully allocated.
379
380 **/
381 EFI_STATUS
382 CoreAllocateGcdMapEntry (
383 IN OUT EFI_GCD_MAP_ENTRY **TopEntry,
384 IN OUT EFI_GCD_MAP_ENTRY **BottomEntry
385 )
386 {
387 *TopEntry = AllocateZeroPool (sizeof (EFI_GCD_MAP_ENTRY));
388 if (*TopEntry == NULL) {
389 return EFI_OUT_OF_RESOURCES;
390 }
391
392 *BottomEntry = AllocateZeroPool (sizeof (EFI_GCD_MAP_ENTRY));
393 if (*BottomEntry == NULL) {
394 CoreFreePool (*TopEntry);
395 return EFI_OUT_OF_RESOURCES;
396 }
397
398 return EFI_SUCCESS;
399 }
400
401
402 /**
403 Internal function. Inserts a new descriptor into a sorted list
404
405 @param Link The linked list to insert the range BaseAddress
406 and Length into
407 @param Entry A pointer to the entry that is inserted
408 @param BaseAddress The base address of the new range
409 @param Length The length of the new range in bytes
410 @param TopEntry Top pad entry to insert if needed.
411 @param BottomEntry Bottom pad entry to insert if needed.
412
413 @retval EFI_SUCCESS The new range was inserted into the linked list
414
415 **/
416 EFI_STATUS
417 CoreInsertGcdMapEntry (
418 IN LIST_ENTRY *Link,
419 IN EFI_GCD_MAP_ENTRY *Entry,
420 IN EFI_PHYSICAL_ADDRESS BaseAddress,
421 IN UINT64 Length,
422 IN EFI_GCD_MAP_ENTRY *TopEntry,
423 IN EFI_GCD_MAP_ENTRY *BottomEntry
424 )
425 {
426 ASSERT (Length != 0);
427
428 if (BaseAddress > Entry->BaseAddress) {
429 ASSERT (BottomEntry->Signature == 0);
430
431 CopyMem (BottomEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));
432 Entry->BaseAddress = BaseAddress;
433 BottomEntry->EndAddress = BaseAddress - 1;
434 InsertTailList (Link, &BottomEntry->Link);
435 }
436
437 if ((BaseAddress + Length - 1) < Entry->EndAddress) {
438 ASSERT (TopEntry->Signature == 0);
439
440 CopyMem (TopEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));
441 TopEntry->BaseAddress = BaseAddress + Length;
442 Entry->EndAddress = BaseAddress + Length - 1;
443 InsertHeadList (Link, &TopEntry->Link);
444 }
445
446 return EFI_SUCCESS;
447 }
448
449
450 /**
451 Merge the Gcd region specified by Link and its adjacent entry.
452
453 @param Link Specify the entry to be merged (with its
454 adjacent entry).
455 @param Forward Direction (forward or backward).
456 @param Map Boundary.
457
458 @retval EFI_SUCCESS Successfully returned.
459 @retval EFI_UNSUPPORTED These adjacent regions could not merge.
460
461 **/
462 EFI_STATUS
463 CoreMergeGcdMapEntry (
464 IN LIST_ENTRY *Link,
465 IN BOOLEAN Forward,
466 IN LIST_ENTRY *Map
467 )
468 {
469 LIST_ENTRY *AdjacentLink;
470 EFI_GCD_MAP_ENTRY *Entry;
471 EFI_GCD_MAP_ENTRY *AdjacentEntry;
472
473 //
474 // Get adjacent entry
475 //
476 if (Forward) {
477 AdjacentLink = Link->ForwardLink;
478 } else {
479 AdjacentLink = Link->BackLink;
480 }
481
482 //
483 // If AdjacentLink is the head of the list, then no merge can be performed
484 //
485 if (AdjacentLink == Map) {
486 return EFI_SUCCESS;
487 }
488
489 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
490 AdjacentEntry = CR (AdjacentLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
491
492 if (Entry->Capabilities != AdjacentEntry->Capabilities) {
493 return EFI_UNSUPPORTED;
494 }
495 if (Entry->Attributes != AdjacentEntry->Attributes) {
496 return EFI_UNSUPPORTED;
497 }
498 if (Entry->GcdMemoryType != AdjacentEntry->GcdMemoryType) {
499 return EFI_UNSUPPORTED;
500 }
501 if (Entry->GcdIoType != AdjacentEntry->GcdIoType) {
502 return EFI_UNSUPPORTED;
503 }
504 if (Entry->ImageHandle != AdjacentEntry->ImageHandle) {
505 return EFI_UNSUPPORTED;
506 }
507 if (Entry->DeviceHandle != AdjacentEntry->DeviceHandle) {
508 return EFI_UNSUPPORTED;
509 }
510
511 if (Forward) {
512 Entry->EndAddress = AdjacentEntry->EndAddress;
513 } else {
514 Entry->BaseAddress = AdjacentEntry->BaseAddress;
515 }
516 RemoveEntryList (AdjacentLink);
517 CoreFreePool (AdjacentEntry);
518
519 return EFI_SUCCESS;
520 }
521
522
523 /**
524 Merge adjacent entries on total chain.
525
526 @param TopEntry Top entry of GCD map.
527 @param BottomEntry Bottom entry of GCD map.
528 @param StartLink Start link of the list for this loop.
529 @param EndLink End link of the list for this loop.
530 @param Map Boundary.
531
532 @retval EFI_SUCCESS GCD map successfully cleaned up.
533
534 **/
535 EFI_STATUS
536 CoreCleanupGcdMapEntry (
537 IN EFI_GCD_MAP_ENTRY *TopEntry,
538 IN EFI_GCD_MAP_ENTRY *BottomEntry,
539 IN LIST_ENTRY *StartLink,
540 IN LIST_ENTRY *EndLink,
541 IN LIST_ENTRY *Map
542 )
543 {
544 LIST_ENTRY *Link;
545
546 if (TopEntry->Signature == 0) {
547 CoreFreePool (TopEntry);
548 }
549 if (BottomEntry->Signature == 0) {
550 CoreFreePool (BottomEntry);
551 }
552
553 Link = StartLink;
554 while (Link != EndLink->ForwardLink) {
555 CoreMergeGcdMapEntry (Link, FALSE, Map);
556 Link = Link->ForwardLink;
557 }
558 CoreMergeGcdMapEntry (EndLink, TRUE, Map);
559
560 return EFI_SUCCESS;
561 }
562
563
564 /**
565 Search a segment of memory space in GCD map. The result is a range of GCD entry list.
566
567 @param BaseAddress The start address of the segment.
568 @param Length The length of the segment.
569 @param StartLink The first GCD entry involves this segment of
570 memory space.
571 @param EndLink The first GCD entry involves this segment of
572 memory space.
573 @param Map Points to the start entry to search.
574
575 @retval EFI_SUCCESS Successfully found the entry.
576 @retval EFI_NOT_FOUND Not found.
577
578 **/
579 EFI_STATUS
580 CoreSearchGcdMapEntry (
581 IN EFI_PHYSICAL_ADDRESS BaseAddress,
582 IN UINT64 Length,
583 OUT LIST_ENTRY **StartLink,
584 OUT LIST_ENTRY **EndLink,
585 IN LIST_ENTRY *Map
586 )
587 {
588 LIST_ENTRY *Link;
589 EFI_GCD_MAP_ENTRY *Entry;
590
591 ASSERT (Length != 0);
592
593 *StartLink = NULL;
594 *EndLink = NULL;
595
596 Link = Map->ForwardLink;
597 while (Link != Map) {
598 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
599 if (BaseAddress >= Entry->BaseAddress && BaseAddress <= Entry->EndAddress) {
600 *StartLink = Link;
601 }
602 if (*StartLink != NULL) {
603 if ((BaseAddress + Length - 1) >= Entry->BaseAddress &&
604 (BaseAddress + Length - 1) <= Entry->EndAddress ) {
605 *EndLink = Link;
606 return EFI_SUCCESS;
607 }
608 }
609 Link = Link->ForwardLink;
610 }
611
612 return EFI_NOT_FOUND;
613 }
614
615
616 /**
617 Count the amount of GCD map entries.
618
619 @param Map Points to the start entry to do the count loop.
620
621 @return The count.
622
623 **/
624 UINTN
625 CoreCountGcdMapEntry (
626 IN LIST_ENTRY *Map
627 )
628 {
629 UINTN Count;
630 LIST_ENTRY *Link;
631
632 Count = 0;
633 Link = Map->ForwardLink;
634 while (Link != Map) {
635 Count++;
636 Link = Link->ForwardLink;
637 }
638
639 return Count;
640 }
641
642
643
644 /**
645 Return the memory attribute specified by Attributes
646
647 @param Attributes A num with some attribute bits on.
648
649 @return The enum value of memory attribute.
650
651 **/
652 UINT64
653 ConverToCpuArchAttributes (
654 UINT64 Attributes
655 )
656 {
657 if ( (Attributes & EFI_MEMORY_UC) == EFI_MEMORY_UC) {
658 return EFI_MEMORY_UC;
659 }
660
661 if ( (Attributes & EFI_MEMORY_WC ) == EFI_MEMORY_WC) {
662 return EFI_MEMORY_WC;
663 }
664
665 if ( (Attributes & EFI_MEMORY_WT ) == EFI_MEMORY_WT) {
666 return EFI_MEMORY_WT;
667 }
668
669 if ( (Attributes & EFI_MEMORY_WB) == EFI_MEMORY_WB) {
670 return EFI_MEMORY_WB;
671 }
672
673 if ( (Attributes & EFI_MEMORY_WP) == EFI_MEMORY_WP) {
674 return EFI_MEMORY_WP;
675 }
676
677 return INVALID_CPU_ARCH_ATTRIBUTES;
678
679 }
680
681
682 /**
683 Do operation on a segment of memory space specified (add, free, remove, change attribute ...).
684
685 @param Operation The type of the operation
686 @param GcdMemoryType Additional information for the operation
687 @param GcdIoType Additional information for the operation
688 @param BaseAddress Start address of the segment
689 @param Length length of the segment
690 @param Capabilities The alterable attributes of a newly added entry
691 @param Attributes The attributes needs to be set
692
693 @retval EFI_INVALID_PARAMETER Length is 0 or address (length) not aligned when
694 setting attribute.
695 @retval EFI_SUCCESS Action successfully done.
696 @retval EFI_UNSUPPORTED Could not find the proper descriptor on this
697 segment or set an upsupported attribute.
698 @retval EFI_ACCESS_DENIED Operate on an space non-exist or is used for an
699 image.
700 @retval EFI_NOT_FOUND Free a non-using space or remove a non-exist
701 space, and so on.
702 @retval EFI_OUT_OF_RESOURCES No buffer could be allocated.
703 @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol
704 is not available yet.
705 **/
706 EFI_STATUS
707 CoreConvertSpace (
708 IN UINTN Operation,
709 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
710 IN EFI_GCD_IO_TYPE GcdIoType,
711 IN EFI_PHYSICAL_ADDRESS BaseAddress,
712 IN UINT64 Length,
713 IN UINT64 Capabilities,
714 IN UINT64 Attributes
715 )
716 {
717 EFI_STATUS Status;
718 LIST_ENTRY *Map;
719 LIST_ENTRY *Link;
720 EFI_GCD_MAP_ENTRY *Entry;
721 EFI_GCD_MAP_ENTRY *TopEntry;
722 EFI_GCD_MAP_ENTRY *BottomEntry;
723 LIST_ENTRY *StartLink;
724 LIST_ENTRY *EndLink;
725 UINT64 CpuArchAttributes;
726
727 if (Length == 0) {
728 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
729 return EFI_INVALID_PARAMETER;
730 }
731
732 Map = NULL;
733 if ((Operation & GCD_MEMORY_SPACE_OPERATION) != 0) {
734 CoreAcquireGcdMemoryLock ();
735 Map = &mGcdMemorySpaceMap;
736 } else if ((Operation & GCD_IO_SPACE_OPERATION) != 0) {
737 CoreAcquireGcdIoLock ();
738 Map = &mGcdIoSpaceMap;
739 } else {
740 ASSERT (FALSE);
741 }
742
743 //
744 // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
745 //
746 Status = CoreSearchGcdMapEntry (BaseAddress, Length, &StartLink, &EndLink, Map);
747 if (EFI_ERROR (Status)) {
748 Status = EFI_UNSUPPORTED;
749
750 goto Done;
751 }
752 ASSERT (StartLink != NULL && EndLink != NULL);
753
754 //
755 // Verify that the list of descriptors are unallocated non-existent memory.
756 //
757 Link = StartLink;
758 while (Link != EndLink->ForwardLink) {
759 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
760 switch (Operation) {
761 //
762 // Add operations
763 //
764 case GCD_ADD_MEMORY_OPERATION:
765 if (Entry->GcdMemoryType != EfiGcdMemoryTypeNonExistent ||
766 Entry->ImageHandle != NULL ) {
767 Status = EFI_ACCESS_DENIED;
768 goto Done;
769 }
770 break;
771 case GCD_ADD_IO_OPERATION:
772 if (Entry->GcdIoType != EfiGcdIoTypeNonExistent ||
773 Entry->ImageHandle != NULL ) {
774 Status = EFI_ACCESS_DENIED;
775 goto Done;
776 }
777 break;
778 //
779 // Free operations
780 //
781 case GCD_FREE_MEMORY_OPERATION:
782 case GCD_FREE_IO_OPERATION:
783 if (Entry->ImageHandle == NULL) {
784 Status = EFI_NOT_FOUND;
785 goto Done;
786 }
787 break;
788 //
789 // Remove operations
790 //
791 case GCD_REMOVE_MEMORY_OPERATION:
792 if (Entry->GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
793 Status = EFI_NOT_FOUND;
794 goto Done;
795 }
796 if (Entry->ImageHandle != NULL) {
797 Status = EFI_ACCESS_DENIED;
798 goto Done;
799 }
800 break;
801 case GCD_REMOVE_IO_OPERATION:
802 if (Entry->GcdIoType == EfiGcdIoTypeNonExistent) {
803 Status = EFI_NOT_FOUND;
804 goto Done;
805 }
806 if (Entry->ImageHandle != NULL) {
807 Status = EFI_ACCESS_DENIED;
808 goto Done;
809 }
810 break;
811 //
812 // Set attributes operation
813 //
814 case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:
815 if ((Attributes & EFI_MEMORY_RUNTIME) != 0) {
816 if ((BaseAddress & EFI_PAGE_MASK) != 0 || (Length & EFI_PAGE_MASK) != 0) {
817 Status = EFI_INVALID_PARAMETER;
818 goto Done;
819 }
820 }
821 if ((Entry->Capabilities & Attributes) != Attributes) {
822 Status = EFI_UNSUPPORTED;
823 goto Done;
824 }
825 break;
826 //
827 // Set capabilities operation
828 //
829 case GCD_SET_CAPABILITIES_MEMORY_OPERATION:
830 if ((BaseAddress & EFI_PAGE_MASK) != 0 || (Length & EFI_PAGE_MASK) != 0) {
831 Status = EFI_INVALID_PARAMETER;
832
833 goto Done;
834 }
835 //
836 // Current attributes must still be supported with new capabilities
837 //
838 if ((Capabilities & Entry->Attributes) != Entry->Attributes) {
839 Status = EFI_UNSUPPORTED;
840 goto Done;
841 }
842 break;
843 }
844 Link = Link->ForwardLink;
845 }
846
847 //
848 // Allocate work space to perform this operation
849 //
850 Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);
851 if (EFI_ERROR (Status)) {
852 Status = EFI_OUT_OF_RESOURCES;
853 goto Done;
854 }
855 ASSERT (TopEntry != NULL && BottomEntry != NULL);
856
857 if (Operation == GCD_SET_ATTRIBUTES_MEMORY_OPERATION) {
858 //
859 // Call CPU Arch Protocol to attempt to set attributes on the range
860 //
861 CpuArchAttributes = ConverToCpuArchAttributes (Attributes);
862 if (CpuArchAttributes != INVALID_CPU_ARCH_ATTRIBUTES) {
863 if (gCpu == NULL) {
864 Status = EFI_NOT_AVAILABLE_YET;
865 } else {
866 Status = gCpu->SetMemoryAttributes (
867 gCpu,
868 BaseAddress,
869 Length,
870 CpuArchAttributes
871 );
872 }
873 if (EFI_ERROR (Status)) {
874 CoreFreePool (TopEntry);
875 CoreFreePool (BottomEntry);
876 goto Done;
877 }
878 }
879 }
880
881 //
882 // Convert/Insert the list of descriptors from StartLink to EndLink
883 //
884 Link = StartLink;
885 while (Link != EndLink->ForwardLink) {
886 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
887 CoreInsertGcdMapEntry (Link, Entry, BaseAddress, Length, TopEntry, BottomEntry);
888 switch (Operation) {
889 //
890 // Add operations
891 //
892 case GCD_ADD_MEMORY_OPERATION:
893 Entry->GcdMemoryType = GcdMemoryType;
894 if (GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {
895 Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME | EFI_MEMORY_PORT_IO;
896 } else {
897 Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME;
898 }
899 break;
900 case GCD_ADD_IO_OPERATION:
901 Entry->GcdIoType = GcdIoType;
902 break;
903 //
904 // Free operations
905 //
906 case GCD_FREE_MEMORY_OPERATION:
907 case GCD_FREE_IO_OPERATION:
908 Entry->ImageHandle = NULL;
909 Entry->DeviceHandle = NULL;
910 break;
911 //
912 // Remove operations
913 //
914 case GCD_REMOVE_MEMORY_OPERATION:
915 Entry->GcdMemoryType = EfiGcdMemoryTypeNonExistent;
916 Entry->Capabilities = 0;
917 break;
918 case GCD_REMOVE_IO_OPERATION:
919 Entry->GcdIoType = EfiGcdIoTypeNonExistent;
920 break;
921 //
922 // Set attributes operation
923 //
924 case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:
925 Entry->Attributes = Attributes;
926 break;
927 //
928 // Set capabilities operation
929 //
930 case GCD_SET_CAPABILITIES_MEMORY_OPERATION:
931 Entry->Capabilities = Capabilities;
932 break;
933 }
934 Link = Link->ForwardLink;
935 }
936
937 //
938 // Cleanup
939 //
940 Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);
941
942 Done:
943 DEBUG ((DEBUG_GCD, " Status = %r\n", Status));
944
945 if ((Operation & GCD_MEMORY_SPACE_OPERATION) != 0) {
946 CoreReleaseGcdMemoryLock ();
947 CoreDumpGcdMemorySpaceMap (FALSE);
948 }
949 if ((Operation & GCD_IO_SPACE_OPERATION) != 0) {
950 CoreReleaseGcdIoLock ();
951 CoreDumpGcdIoSpaceMap (FALSE);
952 }
953
954 return Status;
955 }
956
957
958 /**
959 Check whether an entry could be used to allocate space.
960
961 @param Operation Allocate memory or IO
962 @param Entry The entry to be tested
963 @param GcdMemoryType The desired memory type
964 @param GcdIoType The desired IO type
965
966 @retval EFI_NOT_FOUND The memory type does not match or there's an
967 image handle on the entry.
968 @retval EFI_UNSUPPORTED The operation unsupported.
969 @retval EFI_SUCCESS It's ok for this entry to be used to allocate
970 space.
971
972 **/
973 EFI_STATUS
974 CoreAllocateSpaceCheckEntry (
975 IN UINTN Operation,
976 IN EFI_GCD_MAP_ENTRY *Entry,
977 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
978 IN EFI_GCD_IO_TYPE GcdIoType
979 )
980 {
981 if (Entry->ImageHandle != NULL) {
982 return EFI_NOT_FOUND;
983 }
984 switch (Operation) {
985 case GCD_ALLOCATE_MEMORY_OPERATION:
986 if (Entry->GcdMemoryType != GcdMemoryType) {
987 return EFI_NOT_FOUND;
988 }
989 break;
990 case GCD_ALLOCATE_IO_OPERATION:
991 if (Entry->GcdIoType != GcdIoType) {
992 return EFI_NOT_FOUND;
993 }
994 break;
995 default:
996 return EFI_UNSUPPORTED;
997 }
998 return EFI_SUCCESS;
999 }
1000
1001
1002 /**
1003 Allocate space on specified address and length.
1004
1005 @param Operation The type of operation (memory or IO)
1006 @param GcdAllocateType The type of allocate operation
1007 @param GcdMemoryType The desired memory type
1008 @param GcdIoType The desired IO type
1009 @param Alignment Align with 2^Alignment
1010 @param Length Length to allocate
1011 @param BaseAddress Base address to allocate
1012 @param ImageHandle The image handle consume the allocated space.
1013 @param DeviceHandle The device handle consume the allocated space.
1014
1015 @retval EFI_INVALID_PARAMETER Invalid parameter.
1016 @retval EFI_NOT_FOUND No descriptor for the desired space exists.
1017 @retval EFI_SUCCESS Space successfully allocated.
1018
1019 **/
1020 EFI_STATUS
1021 CoreAllocateSpace (
1022 IN UINTN Operation,
1023 IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
1024 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
1025 IN EFI_GCD_IO_TYPE GcdIoType,
1026 IN UINTN Alignment,
1027 IN UINT64 Length,
1028 IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
1029 IN EFI_HANDLE ImageHandle,
1030 IN EFI_HANDLE DeviceHandle OPTIONAL
1031 )
1032 {
1033 EFI_STATUS Status;
1034 EFI_PHYSICAL_ADDRESS AlignmentMask;
1035 EFI_PHYSICAL_ADDRESS MaxAddress;
1036 LIST_ENTRY *Map;
1037 LIST_ENTRY *Link;
1038 LIST_ENTRY *SubLink;
1039 EFI_GCD_MAP_ENTRY *Entry;
1040 EFI_GCD_MAP_ENTRY *TopEntry;
1041 EFI_GCD_MAP_ENTRY *BottomEntry;
1042 LIST_ENTRY *StartLink;
1043 LIST_ENTRY *EndLink;
1044 BOOLEAN Found;
1045
1046 //
1047 // Make sure parameters are valid
1048 //
1049 if ((UINT32)GcdAllocateType >= EfiGcdMaxAllocateType) {
1050 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1051 return EFI_INVALID_PARAMETER;
1052 }
1053 if ((UINT32)GcdMemoryType >= EfiGcdMemoryTypeMaximum) {
1054 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1055 return EFI_INVALID_PARAMETER;
1056 }
1057 if ((UINT32)GcdIoType >= EfiGcdIoTypeMaximum) {
1058 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1059 return EFI_INVALID_PARAMETER;
1060 }
1061 if (BaseAddress == NULL) {
1062 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1063 return EFI_INVALID_PARAMETER;
1064 }
1065 if (ImageHandle == NULL) {
1066 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1067 return EFI_INVALID_PARAMETER;
1068 }
1069 if (Alignment >= 64) {
1070 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_NOT_FOUND));
1071 return EFI_NOT_FOUND;
1072 }
1073 if (Length == 0) {
1074 DEBUG ((DEBUG_GCD, " Status = %r\n", EFI_INVALID_PARAMETER));
1075 return EFI_INVALID_PARAMETER;
1076 }
1077
1078 Map = NULL;
1079 if ((Operation & GCD_MEMORY_SPACE_OPERATION) != 0) {
1080 CoreAcquireGcdMemoryLock ();
1081 Map = &mGcdMemorySpaceMap;
1082 } else if ((Operation & GCD_IO_SPACE_OPERATION) != 0) {
1083 CoreAcquireGcdIoLock ();
1084 Map = &mGcdIoSpaceMap;
1085 } else {
1086 ASSERT (FALSE);
1087 }
1088
1089 Found = FALSE;
1090 StartLink = NULL;
1091 EndLink = NULL;
1092 //
1093 // Compute alignment bit mask
1094 //
1095 AlignmentMask = LShiftU64 (1, Alignment) - 1;
1096
1097 if (GcdAllocateType == EfiGcdAllocateAddress) {
1098 //
1099 // Verify that the BaseAddress passed in is aligned correctly
1100 //
1101 if ((*BaseAddress & AlignmentMask) != 0) {
1102 Status = EFI_NOT_FOUND;
1103 goto Done;
1104 }
1105
1106 //
1107 // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
1108 //
1109 Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);
1110 if (EFI_ERROR (Status)) {
1111 Status = EFI_NOT_FOUND;
1112 goto Done;
1113 }
1114 ASSERT (StartLink != NULL && EndLink != NULL);
1115
1116 //
1117 // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
1118 //
1119 Link = StartLink;
1120 while (Link != EndLink->ForwardLink) {
1121 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1122 Link = Link->ForwardLink;
1123 Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
1124 if (EFI_ERROR (Status)) {
1125 goto Done;
1126 }
1127 }
1128 Found = TRUE;
1129 } else {
1130
1131 Entry = CR (Map->BackLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1132
1133 //
1134 // Compute the maximum address to use in the search algorithm
1135 //
1136 if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchBottomUp ||
1137 GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ) {
1138 MaxAddress = *BaseAddress;
1139 } else {
1140 MaxAddress = Entry->EndAddress;
1141 }
1142
1143 //
1144 // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
1145 //
1146 if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
1147 GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {
1148 Link = Map->BackLink;
1149 } else {
1150 Link = Map->ForwardLink;
1151 }
1152 while (Link != Map) {
1153 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1154
1155 if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
1156 GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {
1157 Link = Link->BackLink;
1158 } else {
1159 Link = Link->ForwardLink;
1160 }
1161
1162 Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
1163 if (EFI_ERROR (Status)) {
1164 continue;
1165 }
1166
1167 if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
1168 GcdAllocateType == EfiGcdAllocateAnySearchTopDown) {
1169 if ((Entry->BaseAddress + Length) > MaxAddress) {
1170 continue;
1171 }
1172 if (Length > (Entry->EndAddress + 1)) {
1173 Status = EFI_NOT_FOUND;
1174 goto Done;
1175 }
1176 if (Entry->EndAddress > MaxAddress) {
1177 *BaseAddress = MaxAddress;
1178 } else {
1179 *BaseAddress = Entry->EndAddress;
1180 }
1181 *BaseAddress = (*BaseAddress + 1 - Length) & (~AlignmentMask);
1182 } else {
1183 *BaseAddress = (Entry->BaseAddress + AlignmentMask) & (~AlignmentMask);
1184 if ((*BaseAddress + Length - 1) > MaxAddress) {
1185 Status = EFI_NOT_FOUND;
1186 goto Done;
1187 }
1188 }
1189
1190 //
1191 // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
1192 //
1193 Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);
1194 if (EFI_ERROR (Status)) {
1195 Status = EFI_NOT_FOUND;
1196 goto Done;
1197 }
1198 ASSERT (StartLink != NULL && EndLink != NULL);
1199
1200 Link = StartLink;
1201 //
1202 // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
1203 //
1204 Found = TRUE;
1205 SubLink = StartLink;
1206 while (SubLink != EndLink->ForwardLink) {
1207 Entry = CR (SubLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1208 Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
1209 if (EFI_ERROR (Status)) {
1210 Link = SubLink;
1211 Found = FALSE;
1212 break;
1213 }
1214 SubLink = SubLink->ForwardLink;
1215 }
1216 if (Found) {
1217 break;
1218 }
1219 }
1220 }
1221 if (!Found) {
1222 Status = EFI_NOT_FOUND;
1223 goto Done;
1224 }
1225
1226 //
1227 // Allocate work space to perform this operation
1228 //
1229 Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);
1230 if (EFI_ERROR (Status)) {
1231 Status = EFI_OUT_OF_RESOURCES;
1232 goto Done;
1233 }
1234 ASSERT (TopEntry != NULL && BottomEntry != NULL);
1235
1236 //
1237 // Convert/Insert the list of descriptors from StartLink to EndLink
1238 //
1239 Link = StartLink;
1240 while (Link != EndLink->ForwardLink) {
1241 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1242 CoreInsertGcdMapEntry (Link, Entry, *BaseAddress, Length, TopEntry, BottomEntry);
1243 Entry->ImageHandle = ImageHandle;
1244 Entry->DeviceHandle = DeviceHandle;
1245 Link = Link->ForwardLink;
1246 }
1247
1248 //
1249 // Cleanup
1250 //
1251 Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);
1252
1253 Done:
1254 DEBUG ((DEBUG_GCD, " Status = %r", Status));
1255 if (!EFI_ERROR (Status)) {
1256 DEBUG ((DEBUG_GCD, " (BaseAddress = %016lx)", *BaseAddress));
1257 }
1258 DEBUG ((DEBUG_GCD, "\n"));
1259
1260 if ((Operation & GCD_MEMORY_SPACE_OPERATION) != 0) {
1261 CoreReleaseGcdMemoryLock ();
1262 CoreDumpGcdMemorySpaceMap (FALSE);
1263 }
1264 if ((Operation & GCD_IO_SPACE_OPERATION) !=0) {
1265 CoreReleaseGcdIoLock ();
1266 CoreDumpGcdIoSpaceMap (FALSE);
1267 }
1268
1269 return Status;
1270 }
1271
1272
1273 /**
1274 Add a segment of memory to GCD map.
1275
1276 @param GcdMemoryType Memory type of the segment.
1277 @param BaseAddress Base address of the segment.
1278 @param Length Length of the segment.
1279 @param Capabilities alterable attributes of the segment.
1280
1281 @retval EFI_INVALID_PARAMETER Invalid parameters.
1282 @retval EFI_SUCCESS Successfully add a segment of memory space.
1283
1284 **/
1285 EFI_STATUS
1286 CoreInternalAddMemorySpace (
1287 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
1288 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1289 IN UINT64 Length,
1290 IN UINT64 Capabilities
1291 )
1292 {
1293 DEBUG ((DEBUG_GCD, "GCD:AddMemorySpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1294 DEBUG ((DEBUG_GCD, " GcdMemoryType = %a\n", mGcdMemoryTypeNames[MIN (GcdMemoryType, EfiGcdMemoryTypeMaximum)]));
1295 DEBUG ((DEBUG_GCD, " Capabilities = %016lx\n", Capabilities));
1296
1297 //
1298 // Make sure parameters are valid
1299 //
1300 if (GcdMemoryType <= EfiGcdMemoryTypeNonExistent || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {
1301 return EFI_INVALID_PARAMETER;
1302 }
1303
1304 return CoreConvertSpace (GCD_ADD_MEMORY_OPERATION, GcdMemoryType, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, Capabilities, 0);
1305 }
1306
1307 //
1308 // GCD Core Services
1309 //
1310
1311 /**
1312 Allocates nonexistent memory, reserved memory, system memory, or memorymapped
1313 I/O resources from the global coherency domain of the processor.
1314
1315 @param GcdAllocateType The type of allocate operation
1316 @param GcdMemoryType The desired memory type
1317 @param Alignment Align with 2^Alignment
1318 @param Length Length to allocate
1319 @param BaseAddress Base address to allocate
1320 @param ImageHandle The image handle consume the allocated space.
1321 @param DeviceHandle The device handle consume the allocated space.
1322
1323 @retval EFI_INVALID_PARAMETER Invalid parameter.
1324 @retval EFI_NOT_FOUND No descriptor contains the desired space.
1325 @retval EFI_SUCCESS Memory space successfully allocated.
1326
1327 **/
1328 EFI_STATUS
1329 EFIAPI
1330 CoreAllocateMemorySpace (
1331 IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
1332 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
1333 IN UINTN Alignment,
1334 IN UINT64 Length,
1335 IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
1336 IN EFI_HANDLE ImageHandle,
1337 IN EFI_HANDLE DeviceHandle OPTIONAL
1338 )
1339 {
1340 DEBUG ((DEBUG_GCD, "GCD:AllocateMemorySpace(Base=%016lx,Length=%016lx)\n", *BaseAddress, Length));
1341 DEBUG ((DEBUG_GCD, " GcdAllocateType = %a\n", mGcdAllocationTypeNames[MIN (GcdAllocateType, EfiGcdMaxAllocateType)]));
1342 DEBUG ((DEBUG_GCD, " GcdMemoryType = %a\n", mGcdMemoryTypeNames[MIN (GcdMemoryType, EfiGcdMemoryTypeMaximum)]));
1343 DEBUG ((DEBUG_GCD, " Alignment = %016lx\n", LShiftU64 (1, Alignment)));
1344 DEBUG ((DEBUG_GCD, " ImageHandle = %p\n", ImageHandle));
1345 DEBUG ((DEBUG_GCD, " DeviceHandle = %p\n", DeviceHandle));
1346
1347 return CoreAllocateSpace (
1348 GCD_ALLOCATE_MEMORY_OPERATION,
1349 GcdAllocateType,
1350 GcdMemoryType,
1351 (EFI_GCD_IO_TYPE) 0,
1352 Alignment,
1353 Length,
1354 BaseAddress,
1355 ImageHandle,
1356 DeviceHandle
1357 );
1358 }
1359
1360
1361 /**
1362 Adds reserved memory, system memory, or memory-mapped I/O resources to the
1363 global coherency domain of the processor.
1364
1365 @param GcdMemoryType Memory type of the memory space.
1366 @param BaseAddress Base address of the memory space.
1367 @param Length Length of the memory space.
1368 @param Capabilities alterable attributes of the memory space.
1369
1370 @retval EFI_SUCCESS Merged this memory space into GCD map.
1371
1372 **/
1373 EFI_STATUS
1374 EFIAPI
1375 CoreAddMemorySpace (
1376 IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
1377 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1378 IN UINT64 Length,
1379 IN UINT64 Capabilities
1380 )
1381 {
1382 EFI_STATUS Status;
1383 EFI_PHYSICAL_ADDRESS PageBaseAddress;
1384 UINT64 PageLength;
1385
1386 Status = CoreInternalAddMemorySpace (GcdMemoryType, BaseAddress, Length, Capabilities);
1387
1388 if (!EFI_ERROR (Status) && ((GcdMemoryType == EfiGcdMemoryTypeSystemMemory) || (GcdMemoryType == EfiGcdMemoryTypeMoreReliable))) {
1389
1390 PageBaseAddress = PageAlignAddress (BaseAddress);
1391 PageLength = PageAlignLength (BaseAddress + Length - PageBaseAddress);
1392
1393 Status = CoreAllocateMemorySpace (
1394 EfiGcdAllocateAddress,
1395 GcdMemoryType,
1396 EFI_PAGE_SHIFT,
1397 PageLength,
1398 &PageBaseAddress,
1399 gDxeCoreImageHandle,
1400 NULL
1401 );
1402
1403 if (!EFI_ERROR (Status)) {
1404 CoreAddMemoryDescriptor (
1405 EfiConventionalMemory,
1406 PageBaseAddress,
1407 RShiftU64 (PageLength, EFI_PAGE_SHIFT),
1408 Capabilities
1409 );
1410 } else {
1411 for (; PageLength != 0; PageLength -= EFI_PAGE_SIZE, PageBaseAddress += EFI_PAGE_SIZE) {
1412 Status = CoreAllocateMemorySpace (
1413 EfiGcdAllocateAddress,
1414 GcdMemoryType,
1415 EFI_PAGE_SHIFT,
1416 EFI_PAGE_SIZE,
1417 &PageBaseAddress,
1418 gDxeCoreImageHandle,
1419 NULL
1420 );
1421
1422 if (!EFI_ERROR (Status)) {
1423 CoreAddMemoryDescriptor (
1424 EfiConventionalMemory,
1425 PageBaseAddress,
1426 1,
1427 Capabilities
1428 );
1429 }
1430 }
1431 }
1432 }
1433 return Status;
1434 }
1435
1436
1437 /**
1438 Frees nonexistent memory, reserved memory, system memory, or memory-mapped
1439 I/O resources from the global coherency domain of the processor.
1440
1441 @param BaseAddress Base address of the memory space.
1442 @param Length Length of the memory space.
1443
1444 @retval EFI_SUCCESS Space successfully freed.
1445
1446 **/
1447 EFI_STATUS
1448 EFIAPI
1449 CoreFreeMemorySpace (
1450 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1451 IN UINT64 Length
1452 )
1453 {
1454 DEBUG ((DEBUG_GCD, "GCD:FreeMemorySpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1455
1456 return CoreConvertSpace (GCD_FREE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
1457 }
1458
1459
1460 /**
1461 Removes reserved memory, system memory, or memory-mapped I/O resources from
1462 the global coherency domain of the processor.
1463
1464 @param BaseAddress Base address of the memory space.
1465 @param Length Length of the memory space.
1466
1467 @retval EFI_SUCCESS Successfully remove a segment of memory space.
1468
1469 **/
1470 EFI_STATUS
1471 EFIAPI
1472 CoreRemoveMemorySpace (
1473 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1474 IN UINT64 Length
1475 )
1476 {
1477 DEBUG ((DEBUG_GCD, "GCD:RemoveMemorySpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1478
1479 return CoreConvertSpace (GCD_REMOVE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
1480 }
1481
1482
1483 /**
1484 Build a memory descriptor according to an entry.
1485
1486 @param Descriptor The descriptor to be built
1487 @param Entry According to this entry
1488
1489 **/
1490 VOID
1491 BuildMemoryDescriptor (
1492 IN OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor,
1493 IN EFI_GCD_MAP_ENTRY *Entry
1494 )
1495 {
1496 Descriptor->BaseAddress = Entry->BaseAddress;
1497 Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;
1498 Descriptor->Capabilities = Entry->Capabilities;
1499 Descriptor->Attributes = Entry->Attributes;
1500 Descriptor->GcdMemoryType = Entry->GcdMemoryType;
1501 Descriptor->ImageHandle = Entry->ImageHandle;
1502 Descriptor->DeviceHandle = Entry->DeviceHandle;
1503 }
1504
1505
1506 /**
1507 Retrieves the descriptor for a memory region containing a specified address.
1508
1509 @param BaseAddress Specified start address
1510 @param Descriptor Specified length
1511
1512 @retval EFI_INVALID_PARAMETER Invalid parameter
1513 @retval EFI_SUCCESS Successfully get memory space descriptor.
1514
1515 **/
1516 EFI_STATUS
1517 EFIAPI
1518 CoreGetMemorySpaceDescriptor (
1519 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1520 OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor
1521 )
1522 {
1523 EFI_STATUS Status;
1524 LIST_ENTRY *StartLink;
1525 LIST_ENTRY *EndLink;
1526 EFI_GCD_MAP_ENTRY *Entry;
1527
1528 //
1529 // Make sure parameters are valid
1530 //
1531 if (Descriptor == NULL) {
1532 return EFI_INVALID_PARAMETER;
1533 }
1534
1535 CoreAcquireGcdMemoryLock ();
1536
1537 //
1538 // Search for the list of descriptors that contain BaseAddress
1539 //
1540 Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdMemorySpaceMap);
1541 if (EFI_ERROR (Status)) {
1542 Status = EFI_NOT_FOUND;
1543 } else {
1544 ASSERT (StartLink != NULL && EndLink != NULL);
1545 //
1546 // Copy the contents of the found descriptor into Descriptor
1547 //
1548 Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1549 BuildMemoryDescriptor (Descriptor, Entry);
1550 }
1551
1552 CoreReleaseGcdMemoryLock ();
1553
1554 return Status;
1555 }
1556
1557
1558 /**
1559 Modifies the attributes for a memory region in the global coherency domain of the
1560 processor.
1561
1562 @param BaseAddress Specified start address
1563 @param Length Specified length
1564 @param Attributes Specified attributes
1565
1566 @retval EFI_SUCCESS The attributes were set for the memory region.
1567 @retval EFI_INVALID_PARAMETER Length is zero.
1568 @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
1569 resource range specified by BaseAddress and Length.
1570 @retval EFI_UNSUPPORTED The bit mask of attributes is not support for the memory resource
1571 range specified by BaseAddress and Length.
1572 @retval EFI_ACCESS_DEFINED The attributes for the memory resource range specified by
1573 BaseAddress and Length cannot be modified.
1574 @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
1575 the memory resource range.
1576 @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is
1577 not available yet.
1578
1579 **/
1580 EFI_STATUS
1581 EFIAPI
1582 CoreSetMemorySpaceAttributes (
1583 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1584 IN UINT64 Length,
1585 IN UINT64 Attributes
1586 )
1587 {
1588 DEBUG ((DEBUG_GCD, "GCD:SetMemorySpaceAttributes(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1589 DEBUG ((DEBUG_GCD, " Attributes = %016lx\n", Attributes));
1590
1591 return CoreConvertSpace (GCD_SET_ATTRIBUTES_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, Attributes);
1592 }
1593
1594
1595 /**
1596 Modifies the capabilities for a memory region in the global coherency domain of the
1597 processor.
1598
1599 @param BaseAddress The physical address that is the start address of a memory region.
1600 @param Length The size in bytes of the memory region.
1601 @param Capabilities The bit mask of capabilities that the memory region supports.
1602
1603 @retval EFI_SUCCESS The capabilities were set for the memory region.
1604 @retval EFI_INVALID_PARAMETER Length is zero.
1605 @retval EFI_UNSUPPORTED The capabilities specified by Capabilities do not include the
1606 memory region attributes currently in use.
1607 @retval EFI_ACCESS_DENIED The capabilities for the memory resource range specified by
1608 BaseAddress and Length cannot be modified.
1609 @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the capabilities
1610 of the memory resource range.
1611 **/
1612 EFI_STATUS
1613 EFIAPI
1614 CoreSetMemorySpaceCapabilities (
1615 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1616 IN UINT64 Length,
1617 IN UINT64 Capabilities
1618 )
1619 {
1620 EFI_STATUS Status;
1621
1622 DEBUG ((DEBUG_GCD, "GCD:CoreSetMemorySpaceCapabilities(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1623 DEBUG ((DEBUG_GCD, " Capabilities = %016lx\n", Capabilities));
1624
1625 Status = CoreConvertSpace (GCD_SET_CAPABILITIES_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, Capabilities, 0);
1626 if (!EFI_ERROR(Status)) {
1627 CoreUpdateMemoryAttributes(BaseAddress, RShiftU64(Length, EFI_PAGE_SHIFT), Capabilities);
1628 }
1629
1630 return Status;
1631 }
1632
1633
1634 /**
1635 Returns a map of the memory resources in the global coherency domain of the
1636 processor.
1637
1638 @param NumberOfDescriptors Number of descriptors.
1639 @param MemorySpaceMap Descriptor array
1640
1641 @retval EFI_INVALID_PARAMETER Invalid parameter
1642 @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate
1643 @retval EFI_SUCCESS Successfully get memory space map.
1644
1645 **/
1646 EFI_STATUS
1647 EFIAPI
1648 CoreGetMemorySpaceMap (
1649 OUT UINTN *NumberOfDescriptors,
1650 OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap
1651 )
1652 {
1653 EFI_STATUS Status;
1654 LIST_ENTRY *Link;
1655 EFI_GCD_MAP_ENTRY *Entry;
1656 EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor;
1657
1658 //
1659 // Make sure parameters are valid
1660 //
1661 if (NumberOfDescriptors == NULL) {
1662 return EFI_INVALID_PARAMETER;
1663 }
1664 if (MemorySpaceMap == NULL) {
1665 return EFI_INVALID_PARAMETER;
1666 }
1667
1668 CoreAcquireGcdMemoryLock ();
1669
1670 //
1671 // Count the number of descriptors
1672 //
1673 *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdMemorySpaceMap);
1674
1675 //
1676 // Allocate the MemorySpaceMap
1677 //
1678 *MemorySpaceMap = AllocatePool (*NumberOfDescriptors * sizeof (EFI_GCD_MEMORY_SPACE_DESCRIPTOR));
1679 if (*MemorySpaceMap == NULL) {
1680 Status = EFI_OUT_OF_RESOURCES;
1681 goto Done;
1682 }
1683
1684 //
1685 // Fill in the MemorySpaceMap
1686 //
1687 Descriptor = *MemorySpaceMap;
1688 Link = mGcdMemorySpaceMap.ForwardLink;
1689 while (Link != &mGcdMemorySpaceMap) {
1690 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1691 BuildMemoryDescriptor (Descriptor, Entry);
1692 Descriptor++;
1693 Link = Link->ForwardLink;
1694 }
1695 Status = EFI_SUCCESS;
1696
1697 Done:
1698 CoreReleaseGcdMemoryLock ();
1699 return Status;
1700 }
1701
1702
1703 /**
1704 Adds reserved I/O or I/O resources to the global coherency domain of the processor.
1705
1706 @param GcdIoType IO type of the segment.
1707 @param BaseAddress Base address of the segment.
1708 @param Length Length of the segment.
1709
1710 @retval EFI_SUCCESS Merged this segment into GCD map.
1711 @retval EFI_INVALID_PARAMETER Parameter not valid
1712
1713 **/
1714 EFI_STATUS
1715 EFIAPI
1716 CoreAddIoSpace (
1717 IN EFI_GCD_IO_TYPE GcdIoType,
1718 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1719 IN UINT64 Length
1720 )
1721 {
1722 DEBUG ((DEBUG_GCD, "GCD:AddIoSpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1723 DEBUG ((DEBUG_GCD, " GcdIoType = %a\n", mGcdIoTypeNames[MIN (GcdIoType, EfiGcdIoTypeMaximum)]));
1724
1725 //
1726 // Make sure parameters are valid
1727 //
1728 if (GcdIoType <= EfiGcdIoTypeNonExistent || GcdIoType >= EfiGcdIoTypeMaximum) {
1729 return EFI_INVALID_PARAMETER;
1730 }
1731 return CoreConvertSpace (GCD_ADD_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, GcdIoType, BaseAddress, Length, 0, 0);
1732 }
1733
1734
1735 /**
1736 Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency
1737 domain of the processor.
1738
1739 @param GcdAllocateType The type of allocate operation
1740 @param GcdIoType The desired IO type
1741 @param Alignment Align with 2^Alignment
1742 @param Length Length to allocate
1743 @param BaseAddress Base address to allocate
1744 @param ImageHandle The image handle consume the allocated space.
1745 @param DeviceHandle The device handle consume the allocated space.
1746
1747 @retval EFI_INVALID_PARAMETER Invalid parameter.
1748 @retval EFI_NOT_FOUND No descriptor contains the desired space.
1749 @retval EFI_SUCCESS IO space successfully allocated.
1750
1751 **/
1752 EFI_STATUS
1753 EFIAPI
1754 CoreAllocateIoSpace (
1755 IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
1756 IN EFI_GCD_IO_TYPE GcdIoType,
1757 IN UINTN Alignment,
1758 IN UINT64 Length,
1759 IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
1760 IN EFI_HANDLE ImageHandle,
1761 IN EFI_HANDLE DeviceHandle OPTIONAL
1762 )
1763 {
1764 DEBUG ((DEBUG_GCD, "GCD:AllocateIoSpace(Base=%016lx,Length=%016lx)\n", *BaseAddress, Length));
1765 DEBUG ((DEBUG_GCD, " GcdAllocateType = %a\n", mGcdAllocationTypeNames[MIN (GcdAllocateType, EfiGcdMaxAllocateType)]));
1766 DEBUG ((DEBUG_GCD, " GcdIoType = %a\n", mGcdIoTypeNames[MIN (GcdIoType, EfiGcdIoTypeMaximum)]));
1767 DEBUG ((DEBUG_GCD, " Alignment = %016lx\n", LShiftU64 (1, Alignment)));
1768 DEBUG ((DEBUG_GCD, " ImageHandle = %p\n", ImageHandle));
1769 DEBUG ((DEBUG_GCD, " DeviceHandle = %p\n", DeviceHandle));
1770
1771 return CoreAllocateSpace (
1772 GCD_ALLOCATE_IO_OPERATION,
1773 GcdAllocateType,
1774 (EFI_GCD_MEMORY_TYPE) 0,
1775 GcdIoType,
1776 Alignment,
1777 Length,
1778 BaseAddress,
1779 ImageHandle,
1780 DeviceHandle
1781 );
1782 }
1783
1784
1785 /**
1786 Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency
1787 domain of the processor.
1788
1789 @param BaseAddress Base address of the segment.
1790 @param Length Length of the segment.
1791
1792 @retval EFI_SUCCESS Space successfully freed.
1793
1794 **/
1795 EFI_STATUS
1796 EFIAPI
1797 CoreFreeIoSpace (
1798 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1799 IN UINT64 Length
1800 )
1801 {
1802 DEBUG ((DEBUG_GCD, "GCD:FreeIoSpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1803
1804 return CoreConvertSpace (GCD_FREE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
1805 }
1806
1807
1808 /**
1809 Removes reserved I/O or I/O resources from the global coherency domain of the
1810 processor.
1811
1812 @param BaseAddress Base address of the segment.
1813 @param Length Length of the segment.
1814
1815 @retval EFI_SUCCESS Successfully removed a segment of IO space.
1816
1817 **/
1818 EFI_STATUS
1819 EFIAPI
1820 CoreRemoveIoSpace (
1821 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1822 IN UINT64 Length
1823 )
1824 {
1825 DEBUG ((DEBUG_GCD, "GCD:RemoveIoSpace(Base=%016lx,Length=%016lx)\n", BaseAddress, Length));
1826
1827 return CoreConvertSpace (GCD_REMOVE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
1828 }
1829
1830
1831 /**
1832 Build a IO descriptor according to an entry.
1833
1834 @param Descriptor The descriptor to be built
1835 @param Entry According to this entry
1836
1837 **/
1838 VOID
1839 BuildIoDescriptor (
1840 IN EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor,
1841 IN EFI_GCD_MAP_ENTRY *Entry
1842 )
1843 {
1844 Descriptor->BaseAddress = Entry->BaseAddress;
1845 Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;
1846 Descriptor->GcdIoType = Entry->GcdIoType;
1847 Descriptor->ImageHandle = Entry->ImageHandle;
1848 Descriptor->DeviceHandle = Entry->DeviceHandle;
1849 }
1850
1851
1852 /**
1853 Retrieves the descriptor for an I/O region containing a specified address.
1854
1855 @param BaseAddress Specified start address
1856 @param Descriptor Specified length
1857
1858 @retval EFI_INVALID_PARAMETER Descriptor is NULL.
1859 @retval EFI_SUCCESS Successfully get the IO space descriptor.
1860
1861 **/
1862 EFI_STATUS
1863 EFIAPI
1864 CoreGetIoSpaceDescriptor (
1865 IN EFI_PHYSICAL_ADDRESS BaseAddress,
1866 OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor
1867 )
1868 {
1869 EFI_STATUS Status;
1870 LIST_ENTRY *StartLink;
1871 LIST_ENTRY *EndLink;
1872 EFI_GCD_MAP_ENTRY *Entry;
1873
1874 //
1875 // Make sure parameters are valid
1876 //
1877 if (Descriptor == NULL) {
1878 return EFI_INVALID_PARAMETER;
1879 }
1880
1881 CoreAcquireGcdIoLock ();
1882
1883 //
1884 // Search for the list of descriptors that contain BaseAddress
1885 //
1886 Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdIoSpaceMap);
1887 if (EFI_ERROR (Status)) {
1888 Status = EFI_NOT_FOUND;
1889 } else {
1890 ASSERT (StartLink != NULL && EndLink != NULL);
1891 //
1892 // Copy the contents of the found descriptor into Descriptor
1893 //
1894 Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1895 BuildIoDescriptor (Descriptor, Entry);
1896 }
1897
1898 CoreReleaseGcdIoLock ();
1899
1900 return Status;
1901 }
1902
1903
1904 /**
1905 Returns a map of the I/O resources in the global coherency domain of the processor.
1906
1907 @param NumberOfDescriptors Number of descriptors.
1908 @param IoSpaceMap Descriptor array
1909
1910 @retval EFI_INVALID_PARAMETER Invalid parameter
1911 @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate
1912 @retval EFI_SUCCESS Successfully get IO space map.
1913
1914 **/
1915 EFI_STATUS
1916 EFIAPI
1917 CoreGetIoSpaceMap (
1918 OUT UINTN *NumberOfDescriptors,
1919 OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap
1920 )
1921 {
1922 EFI_STATUS Status;
1923 LIST_ENTRY *Link;
1924 EFI_GCD_MAP_ENTRY *Entry;
1925 EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor;
1926
1927 //
1928 // Make sure parameters are valid
1929 //
1930 if (NumberOfDescriptors == NULL) {
1931 return EFI_INVALID_PARAMETER;
1932 }
1933 if (IoSpaceMap == NULL) {
1934 return EFI_INVALID_PARAMETER;
1935 }
1936
1937 CoreAcquireGcdIoLock ();
1938
1939 //
1940 // Count the number of descriptors
1941 //
1942 *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdIoSpaceMap);
1943
1944 //
1945 // Allocate the IoSpaceMap
1946 //
1947 *IoSpaceMap = AllocatePool (*NumberOfDescriptors * sizeof (EFI_GCD_IO_SPACE_DESCRIPTOR));
1948 if (*IoSpaceMap == NULL) {
1949 Status = EFI_OUT_OF_RESOURCES;
1950 goto Done;
1951 }
1952
1953 //
1954 // Fill in the IoSpaceMap
1955 //
1956 Descriptor = *IoSpaceMap;
1957 Link = mGcdIoSpaceMap.ForwardLink;
1958 while (Link != &mGcdIoSpaceMap) {
1959 Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
1960 BuildIoDescriptor (Descriptor, Entry);
1961 Descriptor++;
1962 Link = Link->ForwardLink;
1963 }
1964 Status = EFI_SUCCESS;
1965
1966 Done:
1967 CoreReleaseGcdIoLock ();
1968 return Status;
1969 }
1970
1971
1972 /**
1973 Converts a Resource Descriptor HOB attributes mask to an EFI Memory Descriptor
1974 capabilities mask
1975
1976 @param GcdMemoryType Type of resource in the GCD memory map.
1977 @param Attributes The attribute mask in the Resource Descriptor
1978 HOB.
1979
1980 @return The capabilities mask for an EFI Memory Descriptor.
1981
1982 **/
1983 UINT64
1984 CoreConvertResourceDescriptorHobAttributesToCapabilities (
1985 EFI_GCD_MEMORY_TYPE GcdMemoryType,
1986 UINT64 Attributes
1987 )
1988 {
1989 UINT64 Capabilities;
1990 GCD_ATTRIBUTE_CONVERSION_ENTRY *Conversion;
1991
1992 //
1993 // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
1994 //
1995 for (Capabilities = 0, Conversion = mAttributeConversionTable; Conversion->Attribute != 0; Conversion++) {
1996 if (Conversion->Memory || ((GcdMemoryType != EfiGcdMemoryTypeSystemMemory) && (GcdMemoryType != EfiGcdMemoryTypeMoreReliable))) {
1997 if (Attributes & Conversion->Attribute) {
1998 Capabilities |= Conversion->Capability;
1999 }
2000 }
2001 }
2002
2003 return Capabilities;
2004 }
2005
2006
2007 /**
2008 External function. Initializes memory services based on the memory
2009 descriptor HOBs. This function is responsible for priming the memory
2010 map, so memory allocations and resource allocations can be made.
2011 The first part of this function can not depend on any memory services
2012 until at least one memory descriptor is provided to the memory services.
2013
2014 @param HobStart The start address of the HOB.
2015 @param MemoryBaseAddress Start address of memory region found to init DXE
2016 core.
2017 @param MemoryLength Length of memory region found to init DXE core.
2018
2019 @retval EFI_SUCCESS Memory services successfully initialized.
2020
2021 **/
2022 EFI_STATUS
2023 CoreInitializeMemoryServices (
2024 IN VOID **HobStart,
2025 OUT EFI_PHYSICAL_ADDRESS *MemoryBaseAddress,
2026 OUT UINT64 *MemoryLength
2027 )
2028 {
2029 EFI_PEI_HOB_POINTERS Hob;
2030 EFI_MEMORY_TYPE_INFORMATION *EfiMemoryTypeInformation;
2031 UINTN DataSize;
2032 BOOLEAN Found;
2033 EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;
2034 EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;
2035 EFI_HOB_RESOURCE_DESCRIPTOR *PhitResourceHob;
2036 EFI_PHYSICAL_ADDRESS BaseAddress;
2037 UINT64 Length;
2038 UINT64 Attributes;
2039 UINT64 Capabilities;
2040 EFI_PHYSICAL_ADDRESS MaxMemoryBaseAddress;
2041 UINT64 MaxMemoryLength;
2042 UINT64 MaxMemoryAttributes;
2043 EFI_PHYSICAL_ADDRESS TestedMemoryBaseAddress;
2044 UINT64 TestedMemoryLength;
2045 EFI_PHYSICAL_ADDRESS HighAddress;
2046 EFI_HOB_GUID_TYPE *GuidHob;
2047 UINT32 ReservedCodePageNumber;
2048
2049 //
2050 // Point at the first HOB. This must be the PHIT HOB.
2051 //
2052 Hob.Raw = *HobStart;
2053 ASSERT (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_HANDOFF);
2054
2055 //
2056 // Initialize the spin locks and maps in the memory services.
2057 // Also fill in the memory services into the EFI Boot Services Table
2058 //
2059 CoreInitializePool ();
2060
2061 //
2062 // Initialize Local Variables
2063 //
2064 PhitResourceHob = NULL;
2065 ResourceHob = NULL;
2066 BaseAddress = 0;
2067 Length = 0;
2068 Attributes = 0;
2069 MaxMemoryBaseAddress = 0;
2070 MaxMemoryLength = 0;
2071 MaxMemoryAttributes = 0;
2072
2073 //
2074 // Cache the PHIT HOB for later use
2075 //
2076 PhitHob = Hob.HandoffInformationTable;
2077
2078 if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0) {
2079 ReservedCodePageNumber = PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);
2080 ReservedCodePageNumber += PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);
2081
2082 //
2083 // cache the Top address for loading modules at Fixed Address
2084 //
2085 gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress = PhitHob->EfiMemoryTop
2086 + EFI_PAGES_TO_SIZE(ReservedCodePageNumber);
2087 }
2088 //
2089 // See if a Memory Type Information HOB is available
2090 //
2091 GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);
2092 if (GuidHob != NULL) {
2093 EfiMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);
2094 DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob);
2095 if (EfiMemoryTypeInformation != NULL && DataSize > 0 && DataSize <= (EfiMaxMemoryType + 1) * sizeof (EFI_MEMORY_TYPE_INFORMATION)) {
2096 CopyMem (&gMemoryTypeInformation, EfiMemoryTypeInformation, DataSize);
2097 }
2098 }
2099
2100 //
2101 // Find the Resource Descriptor HOB that contains PHIT range EfiFreeMemoryBottom..EfiFreeMemoryTop
2102 //
2103 Length = 0;
2104 Found = FALSE;
2105 for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
2106 //
2107 // Skip all HOBs except Resource Descriptor HOBs
2108 //
2109 if (GET_HOB_TYPE (Hob) != EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
2110 continue;
2111 }
2112
2113 //
2114 // Skip Resource Descriptor HOBs that do not describe tested system memory
2115 //
2116 ResourceHob = Hob.ResourceDescriptor;
2117 if (ResourceHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY) {
2118 continue;
2119 }
2120 if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) != TESTED_MEMORY_ATTRIBUTES) {
2121 continue;
2122 }
2123
2124 //
2125 // Skip Resource Descriptor HOBs that do not contain the PHIT range EfiFreeMemoryBottom..EfiFreeMemoryTop
2126 //
2127 if (PhitHob->EfiFreeMemoryBottom < ResourceHob->PhysicalStart) {
2128 continue;
2129 }
2130 if (PhitHob->EfiFreeMemoryTop > (ResourceHob->PhysicalStart + ResourceHob->ResourceLength)) {
2131 continue;
2132 }
2133
2134 //
2135 // Cache the resource descriptor HOB for the memory region described by the PHIT HOB
2136 //
2137 PhitResourceHob = ResourceHob;
2138 Found = TRUE;
2139
2140 //
2141 // Compute range between PHIT EfiFreeMemoryTop and the end of the Resource Descriptor HOB
2142 //
2143 Attributes = PhitResourceHob->ResourceAttribute;
2144 BaseAddress = PageAlignAddress (PhitHob->EfiMemoryTop);
2145 Length = PageAlignLength (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - BaseAddress);
2146 if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {
2147 //
2148 // If that range is not large enough to intialize the DXE Core, then
2149 // Compute range between PHIT EfiFreeMemoryBottom and PHIT EfiFreeMemoryTop
2150 //
2151 BaseAddress = PageAlignAddress (PhitHob->EfiFreeMemoryBottom);
2152 Length = PageAlignLength (PhitHob->EfiFreeMemoryTop - BaseAddress);
2153 if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {
2154 //
2155 // If that range is not large enough to intialize the DXE Core, then
2156 // Compute range between the start of the Resource Descriptor HOB and the start of the HOB List
2157 //
2158 BaseAddress = PageAlignAddress (ResourceHob->PhysicalStart);
2159 Length = PageAlignLength ((UINT64)((UINTN)*HobStart - BaseAddress));
2160 }
2161 }
2162 break;
2163 }
2164
2165 //
2166 // Assert if a resource descriptor HOB for the memory region described by the PHIT was not found
2167 //
2168 ASSERT (Found);
2169
2170 //
2171 // Search all the resource descriptor HOBs from the highest possible addresses down for a memory
2172 // region that is big enough to initialize the DXE core. Always skip the PHIT Resource HOB.
2173 // The max address must be within the physically addressible range for the processor.
2174 //
2175 HighAddress = MAX_ADDRESS;
2176 for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
2177 //
2178 // Skip the Resource Descriptor HOB that contains the PHIT
2179 //
2180 if (Hob.ResourceDescriptor == PhitResourceHob) {
2181 continue;
2182 }
2183 //
2184 // Skip all HOBs except Resource Descriptor HOBs
2185 //
2186 if (GET_HOB_TYPE (Hob) != EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
2187 continue;
2188 }
2189
2190 //
2191 // Skip Resource Descriptor HOBs that do not describe tested system memory below MAX_ADDRESS
2192 //
2193 ResourceHob = Hob.ResourceDescriptor;
2194 if (ResourceHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY) {
2195 continue;
2196 }
2197 if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) != TESTED_MEMORY_ATTRIBUTES) {
2198 continue;
2199 }
2200 if ((ResourceHob->PhysicalStart + ResourceHob->ResourceLength) > (EFI_PHYSICAL_ADDRESS)MAX_ADDRESS) {
2201 continue;
2202 }
2203
2204 //
2205 // Skip Resource Descriptor HOBs that are below a previously found Resource Descriptor HOB
2206 //
2207 if (HighAddress != (EFI_PHYSICAL_ADDRESS)MAX_ADDRESS && ResourceHob->PhysicalStart <= HighAddress) {
2208 continue;
2209 }
2210
2211 //
2212 // Skip Resource Descriptor HOBs that are not large enough to initilize the DXE Core
2213 //
2214 TestedMemoryBaseAddress = PageAlignAddress (ResourceHob->PhysicalStart);
2215 TestedMemoryLength = PageAlignLength (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - TestedMemoryBaseAddress);
2216 if (TestedMemoryLength < MINIMUM_INITIAL_MEMORY_SIZE) {
2217 continue;
2218 }
2219
2220 //
2221 // Save the Resource Descriptor HOB context that is large enough to initilize the DXE Core
2222 //
2223 MaxMemoryBaseAddress = TestedMemoryBaseAddress;
2224 MaxMemoryLength = TestedMemoryLength;
2225 MaxMemoryAttributes = ResourceHob->ResourceAttribute;
2226 HighAddress = ResourceHob->PhysicalStart;
2227 }
2228
2229 //
2230 // If Length is not large enough to initialize the DXE Core or a Resource
2231 // Descriptor HOB was found above the PHIT HOB that is large enough to initialize
2232 // the DXE Core, then use the range described by the Resource Descriptor
2233 // HOB that was found above the PHIT HOB.
2234 //
2235 if ((Length < MINIMUM_INITIAL_MEMORY_SIZE) ||
2236 (MaxMemoryBaseAddress > BaseAddress && MaxMemoryLength >= MINIMUM_INITIAL_MEMORY_SIZE)) {
2237 BaseAddress = MaxMemoryBaseAddress;
2238 Length = MaxMemoryLength;
2239 Attributes = MaxMemoryAttributes;
2240 }
2241
2242 //
2243 // If no memory regions are found that are big enough to initialize the DXE core, then ASSERT().
2244 //
2245 ASSERT (Length >= MINIMUM_INITIAL_MEMORY_SIZE);
2246
2247 //
2248 // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
2249 //
2250 if ((Attributes & EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) == EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) {
2251 Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (EfiGcdMemoryTypeMoreReliable, Attributes);
2252 } else {
2253 Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (EfiGcdMemoryTypeSystemMemory, Attributes);
2254 }
2255
2256 //
2257 // Declare the very first memory region, so the EFI Memory Services are available.
2258 //
2259 CoreAddMemoryDescriptor (
2260 EfiConventionalMemory,
2261 BaseAddress,
2262 RShiftU64 (Length, EFI_PAGE_SHIFT),
2263 Capabilities
2264 );
2265
2266 *MemoryBaseAddress = BaseAddress;
2267 *MemoryLength = Length;
2268
2269 return EFI_SUCCESS;
2270 }
2271
2272
2273 /**
2274 External function. Initializes the GCD and memory services based on the memory
2275 descriptor HOBs. This function is responsible for priming the GCD map and the
2276 memory map, so memory allocations and resource allocations can be made. The
2277 HobStart will be relocated to a pool buffer.
2278
2279 @param HobStart The start address of the HOB
2280 @param MemoryBaseAddress Start address of memory region found to init DXE
2281 core.
2282 @param MemoryLength Length of memory region found to init DXE core.
2283
2284 @retval EFI_SUCCESS GCD services successfully initialized.
2285
2286 **/
2287 EFI_STATUS
2288 CoreInitializeGcdServices (
2289 IN OUT VOID **HobStart,
2290 IN EFI_PHYSICAL_ADDRESS MemoryBaseAddress,
2291 IN UINT64 MemoryLength
2292 )
2293 {
2294 EFI_PEI_HOB_POINTERS Hob;
2295 VOID *NewHobList;
2296 EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;
2297 UINT8 SizeOfMemorySpace;
2298 UINT8 SizeOfIoSpace;
2299 EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;
2300 EFI_PHYSICAL_ADDRESS BaseAddress;
2301 UINT64 Length;
2302 EFI_STATUS Status;
2303 EFI_GCD_MAP_ENTRY *Entry;
2304 EFI_GCD_MEMORY_TYPE GcdMemoryType;
2305 EFI_GCD_IO_TYPE GcdIoType;
2306 EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
2307 EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
2308 EFI_HOB_FIRMWARE_VOLUME *FirmwareVolumeHob;
2309 UINTN NumberOfDescriptors;
2310 EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
2311 UINTN Index;
2312 UINT64 Capabilities;
2313 EFI_HOB_CPU * CpuHob;
2314
2315 //
2316 // Cache the PHIT HOB for later use
2317 //
2318 PhitHob = (EFI_HOB_HANDOFF_INFO_TABLE *)(*HobStart);
2319
2320 //
2321 // Get the number of address lines in the I/O and Memory space for the CPU
2322 //
2323 CpuHob = GetFirstHob (EFI_HOB_TYPE_CPU);
2324 ASSERT (CpuHob != NULL);
2325 SizeOfMemorySpace = CpuHob->SizeOfMemorySpace;
2326 SizeOfIoSpace = CpuHob->SizeOfIoSpace;
2327
2328 //
2329 // Initialize the GCD Memory Space Map
2330 //
2331 Entry = AllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdMemorySpaceMapEntryTemplate);
2332 ASSERT (Entry != NULL);
2333
2334 Entry->EndAddress = LShiftU64 (1, SizeOfMemorySpace) - 1;
2335
2336 InsertHeadList (&mGcdMemorySpaceMap, &Entry->Link);
2337
2338 CoreDumpGcdMemorySpaceMap (TRUE);
2339
2340 //
2341 // Initialize the GCD I/O Space Map
2342 //
2343 Entry = AllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdIoSpaceMapEntryTemplate);
2344 ASSERT (Entry != NULL);
2345
2346 Entry->EndAddress = LShiftU64 (1, SizeOfIoSpace) - 1;
2347
2348 InsertHeadList (&mGcdIoSpaceMap, &Entry->Link);
2349
2350 CoreDumpGcdIoSpaceMap (TRUE);
2351
2352 //
2353 // Walk the HOB list and add all resource descriptors to the GCD
2354 //
2355 for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
2356
2357 GcdMemoryType = EfiGcdMemoryTypeNonExistent;
2358 GcdIoType = EfiGcdIoTypeNonExistent;
2359
2360 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
2361
2362 ResourceHob = Hob.ResourceDescriptor;
2363
2364 switch (ResourceHob->ResourceType) {
2365 case EFI_RESOURCE_SYSTEM_MEMORY:
2366 if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {
2367 if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) == EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) {
2368 GcdMemoryType = EfiGcdMemoryTypeMoreReliable;
2369 } else {
2370 GcdMemoryType = EfiGcdMemoryTypeSystemMemory;
2371 }
2372 }
2373 if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {
2374 GcdMemoryType = EfiGcdMemoryTypeReserved;
2375 }
2376 if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {
2377 GcdMemoryType = EfiGcdMemoryTypeReserved;
2378 }
2379 if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_PERSISTENT) == EFI_RESOURCE_ATTRIBUTE_PERSISTENT) {
2380 GcdMemoryType = EfiGcdMemoryTypePersistentMemory;
2381 }
2382 break;
2383 case EFI_RESOURCE_MEMORY_MAPPED_IO:
2384 case EFI_RESOURCE_FIRMWARE_DEVICE:
2385 GcdMemoryType = EfiGcdMemoryTypeMemoryMappedIo;
2386 break;
2387 case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:
2388 case EFI_RESOURCE_MEMORY_RESERVED:
2389 GcdMemoryType = EfiGcdMemoryTypeReserved;
2390 break;
2391 case EFI_RESOURCE_IO:
2392 GcdIoType = EfiGcdIoTypeIo;
2393 break;
2394 case EFI_RESOURCE_IO_RESERVED:
2395 GcdIoType = EfiGcdIoTypeReserved;
2396 break;
2397 }
2398
2399 if (GcdMemoryType != EfiGcdMemoryTypeNonExistent) {
2400 //
2401 // Validate the Resource HOB Attributes
2402 //
2403 CoreValidateResourceDescriptorHobAttributes (ResourceHob->ResourceAttribute);
2404
2405 //
2406 // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
2407 //
2408 Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (
2409 GcdMemoryType,
2410 ResourceHob->ResourceAttribute
2411 );
2412
2413 Status = CoreInternalAddMemorySpace (
2414 GcdMemoryType,
2415 ResourceHob->PhysicalStart,
2416 ResourceHob->ResourceLength,
2417 Capabilities
2418 );
2419 }
2420
2421 if (GcdIoType != EfiGcdIoTypeNonExistent) {
2422 Status = CoreAddIoSpace (
2423 GcdIoType,
2424 ResourceHob->PhysicalStart,
2425 ResourceHob->ResourceLength
2426 );
2427 }
2428 }
2429 }
2430
2431 //
2432 // Allocate first memory region from the GCD by the DXE core
2433 //
2434 Status = CoreGetMemorySpaceDescriptor (MemoryBaseAddress, &Descriptor);
2435 if (!EFI_ERROR (Status)) {
2436 ASSERT ((Descriptor.GcdMemoryType == EfiGcdMemoryTypeSystemMemory) ||
2437 (Descriptor.GcdMemoryType == EfiGcdMemoryTypeMoreReliable));
2438 Status = CoreAllocateMemorySpace (
2439 EfiGcdAllocateAddress,
2440 Descriptor.GcdMemoryType,
2441 0,
2442 MemoryLength,
2443 &MemoryBaseAddress,
2444 gDxeCoreImageHandle,
2445 NULL
2446 );
2447 }
2448
2449 //
2450 // Walk the HOB list and allocate all memory space that is consumed by memory allocation HOBs,
2451 // and Firmware Volume HOBs. Also update the EFI Memory Map with the memory allocation HOBs.
2452 //
2453 for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
2454 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_MEMORY_ALLOCATION) {
2455 MemoryHob = Hob.MemoryAllocation;
2456 BaseAddress = MemoryHob->AllocDescriptor.MemoryBaseAddress;
2457 Status = CoreGetMemorySpaceDescriptor (BaseAddress, &Descriptor);
2458 if (!EFI_ERROR (Status)) {
2459 Status = CoreAllocateMemorySpace (
2460 EfiGcdAllocateAddress,
2461 Descriptor.GcdMemoryType,
2462 0,
2463 MemoryHob->AllocDescriptor.MemoryLength,
2464 &BaseAddress,
2465 gDxeCoreImageHandle,
2466 NULL
2467 );
2468 if (!EFI_ERROR (Status) &&
2469 ((Descriptor.GcdMemoryType == EfiGcdMemoryTypeSystemMemory) ||
2470 (Descriptor.GcdMemoryType == EfiGcdMemoryTypeMoreReliable))) {
2471 CoreAddMemoryDescriptor (
2472 MemoryHob->AllocDescriptor.MemoryType,
2473 MemoryHob->AllocDescriptor.MemoryBaseAddress,
2474 RShiftU64 (MemoryHob->AllocDescriptor.MemoryLength, EFI_PAGE_SHIFT),
2475 Descriptor.Capabilities & (~EFI_MEMORY_RUNTIME)
2476 );
2477 }
2478 }
2479 }
2480
2481 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV) {
2482 FirmwareVolumeHob = Hob.FirmwareVolume;
2483 BaseAddress = FirmwareVolumeHob->BaseAddress;
2484 Status = CoreAllocateMemorySpace (
2485 EfiGcdAllocateAddress,
2486 EfiGcdMemoryTypeMemoryMappedIo,
2487 0,
2488 FirmwareVolumeHob->Length,
2489 &BaseAddress,
2490 gDxeCoreImageHandle,
2491 NULL
2492 );
2493 }
2494 }
2495
2496 //
2497 // Relocate HOB List to an allocated pool buffer.
2498 //
2499 NewHobList = AllocateCopyPool (
2500 (UINTN)PhitHob->EfiFreeMemoryBottom - (UINTN)(*HobStart),
2501 *HobStart
2502 );
2503 ASSERT (NewHobList != NULL);
2504
2505 *HobStart = NewHobList;
2506 gHobList = NewHobList;
2507
2508 //
2509 // Add and allocate the remaining unallocated system memory to the memory services.
2510 //
2511 Status = CoreGetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
2512 ASSERT (Status == EFI_SUCCESS);
2513
2514 for (Index = 0; Index < NumberOfDescriptors; Index++) {
2515 if ((MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) ||
2516 (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeMoreReliable)) {
2517 if (MemorySpaceMap[Index].ImageHandle == NULL) {
2518 BaseAddress = PageAlignAddress (MemorySpaceMap[Index].BaseAddress);
2519 Length = PageAlignLength (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - BaseAddress);
2520 if (Length == 0 || MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length < BaseAddress) {
2521 continue;
2522 }
2523 CoreAddMemoryDescriptor (
2524 EfiConventionalMemory,
2525 BaseAddress,
2526 RShiftU64 (Length, EFI_PAGE_SHIFT),
2527 MemorySpaceMap[Index].Capabilities & (~EFI_MEMORY_RUNTIME)
2528 );
2529 Status = CoreAllocateMemorySpace (
2530 EfiGcdAllocateAddress,
2531 MemorySpaceMap[Index].GcdMemoryType,
2532 0,
2533 Length,
2534 &BaseAddress,
2535 gDxeCoreImageHandle,
2536 NULL
2537 );
2538 }
2539 }
2540 }
2541 CoreFreePool (MemorySpaceMap);
2542
2543 return EFI_SUCCESS;
2544 }
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