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285a682c JY |
1 | /** @file\r |
2 | PI SMM MemoryAttributes support\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiDxe.h>\r | |
16 | #include <Library/BaseLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/MemoryAllocationLib.h>\r | |
19 | #include <Library/UefiBootServicesTableLib.h>\r | |
20 | #include <Library/SmmServicesTableLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/PcdLib.h>\r | |
23 | \r | |
24 | #include <Library/PeCoffLib.h>\r | |
25 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
26 | \r | |
27 | #include <Guid/PiSmmMemoryAttributesTable.h>\r | |
28 | \r | |
29 | #include "PiSmmCore.h"\r | |
30 | \r | |
31 | #define PREVIOUS_MEMORY_DESCRIPTOR(MemoryDescriptor, Size) \\r | |
32 | ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)(MemoryDescriptor) - (Size)))\r | |
33 | \r | |
34 | #define IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE SIGNATURE_32 ('I','P','R','C')\r | |
35 | \r | |
36 | typedef struct {\r | |
37 | UINT32 Signature;\r | |
38 | LIST_ENTRY Link;\r | |
39 | EFI_PHYSICAL_ADDRESS CodeSegmentBase;\r | |
40 | UINT64 CodeSegmentSize;\r | |
41 | } IMAGE_PROPERTIES_RECORD_CODE_SECTION;\r | |
42 | \r | |
43 | #define IMAGE_PROPERTIES_RECORD_SIGNATURE SIGNATURE_32 ('I','P','R','D')\r | |
44 | \r | |
45 | typedef struct {\r | |
46 | UINT32 Signature;\r | |
47 | LIST_ENTRY Link;\r | |
48 | EFI_PHYSICAL_ADDRESS ImageBase;\r | |
49 | UINT64 ImageSize;\r | |
50 | UINTN CodeSegmentCount;\r | |
51 | LIST_ENTRY CodeSegmentList;\r | |
52 | } IMAGE_PROPERTIES_RECORD;\r | |
53 | \r | |
54 | #define IMAGE_PROPERTIES_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('I','P','P','D')\r | |
55 | \r | |
56 | typedef struct {\r | |
57 | UINT32 Signature;\r | |
58 | UINTN ImageRecordCount;\r | |
59 | UINTN CodeSegmentCountMax;\r | |
60 | LIST_ENTRY ImageRecordList;\r | |
61 | } IMAGE_PROPERTIES_PRIVATE_DATA;\r | |
62 | \r | |
63 | IMAGE_PROPERTIES_PRIVATE_DATA mImagePropertiesPrivateData = {\r | |
64 | IMAGE_PROPERTIES_PRIVATE_DATA_SIGNATURE,\r | |
65 | 0,\r | |
66 | 0,\r | |
67 | INITIALIZE_LIST_HEAD_VARIABLE (mImagePropertiesPrivateData.ImageRecordList)\r | |
68 | };\r | |
69 | \r | |
70 | #define EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA BIT0\r | |
71 | \r | |
72 | UINT64 mMemoryProtectionAttribute = EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA;\r | |
73 | \r | |
74 | //\r | |
75 | // Below functions are for MemoryMap\r | |
76 | //\r | |
77 | \r | |
78 | /**\r | |
79 | Converts a number of EFI_PAGEs to a size in bytes.\r | |
80 | \r | |
81 | NOTE: Do not use EFI_PAGES_TO_SIZE because it handles UINTN only.\r | |
82 | \r | |
83 | @param[in] Pages The number of EFI_PAGES.\r | |
84 | \r | |
85 | @return The number of bytes associated with the number of EFI_PAGEs specified\r | |
86 | by Pages.\r | |
87 | **/\r | |
88 | STATIC\r | |
89 | UINT64\r | |
90 | EfiPagesToSize (\r | |
91 | IN UINT64 Pages\r | |
92 | )\r | |
93 | {\r | |
94 | return LShiftU64 (Pages, EFI_PAGE_SHIFT);\r | |
95 | }\r | |
96 | \r | |
97 | /**\r | |
98 | Converts a size, in bytes, to a number of EFI_PAGESs.\r | |
99 | \r | |
100 | NOTE: Do not use EFI_SIZE_TO_PAGES because it handles UINTN only.\r | |
101 | \r | |
102 | @param[in] Size A size in bytes.\r | |
103 | \r | |
104 | @return The number of EFI_PAGESs associated with the number of bytes specified\r | |
105 | by Size.\r | |
106 | \r | |
107 | **/\r | |
108 | STATIC\r | |
109 | UINT64\r | |
110 | EfiSizeToPages (\r | |
111 | IN UINT64 Size\r | |
112 | )\r | |
113 | {\r | |
114 | return RShiftU64 (Size, EFI_PAGE_SHIFT) + ((((UINTN)Size) & EFI_PAGE_MASK) ? 1 : 0);\r | |
115 | }\r | |
116 | \r | |
117 | /**\r | |
118 | Check the consistency of Smm memory attributes table.\r | |
119 | \r | |
120 | @param[in] MemoryAttributesTable PI SMM memory attributes table\r | |
121 | **/\r | |
122 | VOID\r | |
123 | SmmMemoryAttributesTableConsistencyCheck (\r | |
124 | IN EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable\r | |
125 | )\r | |
126 | {\r | |
127 | EFI_MEMORY_DESCRIPTOR *MemoryMap;\r | |
128 | UINTN MemoryMapEntryCount;\r | |
129 | UINTN DescriptorSize;\r | |
130 | UINTN Index;\r | |
131 | UINT64 Address;\r | |
132 | \r | |
133 | Address = 0;\r | |
134 | MemoryMapEntryCount = MemoryAttributesTable->NumberOfEntries;\r | |
135 | DescriptorSize = MemoryAttributesTable->DescriptorSize;\r | |
136 | MemoryMap = (EFI_MEMORY_DESCRIPTOR *)(MemoryAttributesTable + 1);\r | |
137 | for (Index = 0; Index < MemoryMapEntryCount; Index++) {\r | |
138 | if (Address != 0) {\r | |
139 | ASSERT (Address == MemoryMap->PhysicalStart);\r | |
140 | }\r | |
f1afa0a9 | 141 | Address = MemoryMap->PhysicalStart + EfiPagesToSize(MemoryMap->NumberOfPages);\r |
285a682c JY |
142 | MemoryMap = NEXT_MEMORY_DESCRIPTOR(MemoryMap, DescriptorSize);\r |
143 | }\r | |
144 | }\r | |
145 | \r | |
146 | /**\r | |
147 | Sort memory map entries based upon PhysicalStart, from low to high.\r | |
148 | \r | |
11ee1bc9 DB |
149 | @param[in,out] MemoryMap A pointer to the buffer in which firmware places\r |
150 | the current memory map.\r | |
151 | @param[in] MemoryMapSize Size, in bytes, of the MemoryMap buffer.\r | |
152 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
285a682c JY |
153 | **/\r |
154 | STATIC\r | |
155 | VOID\r | |
156 | SortMemoryMap (\r | |
157 | IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,\r | |
158 | IN UINTN MemoryMapSize,\r | |
159 | IN UINTN DescriptorSize\r | |
160 | )\r | |
161 | {\r | |
162 | EFI_MEMORY_DESCRIPTOR *MemoryMapEntry;\r | |
163 | EFI_MEMORY_DESCRIPTOR *NextMemoryMapEntry;\r | |
164 | EFI_MEMORY_DESCRIPTOR *MemoryMapEnd;\r | |
165 | EFI_MEMORY_DESCRIPTOR TempMemoryMap;\r | |
166 | \r | |
167 | MemoryMapEntry = MemoryMap;\r | |
168 | NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r | |
169 | MemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) MemoryMap + MemoryMapSize);\r | |
170 | while (MemoryMapEntry < MemoryMapEnd) {\r | |
171 | while (NextMemoryMapEntry < MemoryMapEnd) {\r | |
172 | if (MemoryMapEntry->PhysicalStart > NextMemoryMapEntry->PhysicalStart) {\r | |
173 | CopyMem (&TempMemoryMap, MemoryMapEntry, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
174 | CopyMem (MemoryMapEntry, NextMemoryMapEntry, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
175 | CopyMem (NextMemoryMapEntry, &TempMemoryMap, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
176 | }\r | |
177 | \r | |
178 | NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (NextMemoryMapEntry, DescriptorSize);\r | |
179 | }\r | |
180 | \r | |
181 | MemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r | |
182 | NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r | |
183 | }\r | |
184 | \r | |
185 | return ;\r | |
186 | }\r | |
187 | \r | |
188 | /**\r | |
189 | Merge continous memory map entries whose have same attributes.\r | |
190 | \r | |
191 | @param[in, out] MemoryMap A pointer to the buffer in which firmware places\r | |
192 | the current memory map.\r | |
193 | @param[in, out] MemoryMapSize A pointer to the size, in bytes, of the\r | |
194 | MemoryMap buffer. On input, this is the size of\r | |
195 | the current memory map. On output,\r | |
196 | it is the size of new memory map after merge.\r | |
197 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
198 | **/\r | |
199 | STATIC\r | |
200 | VOID\r | |
201 | MergeMemoryMap (\r | |
202 | IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,\r | |
203 | IN OUT UINTN *MemoryMapSize,\r | |
204 | IN UINTN DescriptorSize\r | |
205 | )\r | |
206 | {\r | |
207 | EFI_MEMORY_DESCRIPTOR *MemoryMapEntry;\r | |
208 | EFI_MEMORY_DESCRIPTOR *MemoryMapEnd;\r | |
209 | UINT64 MemoryBlockLength;\r | |
210 | EFI_MEMORY_DESCRIPTOR *NewMemoryMapEntry;\r | |
211 | EFI_MEMORY_DESCRIPTOR *NextMemoryMapEntry;\r | |
212 | \r | |
213 | MemoryMapEntry = MemoryMap;\r | |
214 | NewMemoryMapEntry = MemoryMap;\r | |
215 | MemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) MemoryMap + *MemoryMapSize);\r | |
216 | while ((UINTN)MemoryMapEntry < (UINTN)MemoryMapEnd) {\r | |
217 | CopyMem (NewMemoryMapEntry, MemoryMapEntry, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
218 | NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r | |
219 | \r | |
220 | do {\r | |
221 | MemoryBlockLength = (UINT64) (EfiPagesToSize (MemoryMapEntry->NumberOfPages));\r | |
222 | if (((UINTN)NextMemoryMapEntry < (UINTN)MemoryMapEnd) &&\r | |
223 | (MemoryMapEntry->Type == NextMemoryMapEntry->Type) &&\r | |
224 | (MemoryMapEntry->Attribute == NextMemoryMapEntry->Attribute) &&\r | |
225 | ((MemoryMapEntry->PhysicalStart + MemoryBlockLength) == NextMemoryMapEntry->PhysicalStart)) {\r | |
226 | MemoryMapEntry->NumberOfPages += NextMemoryMapEntry->NumberOfPages;\r | |
227 | if (NewMemoryMapEntry != MemoryMapEntry) {\r | |
228 | NewMemoryMapEntry->NumberOfPages += NextMemoryMapEntry->NumberOfPages;\r | |
229 | }\r | |
230 | \r | |
231 | NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (NextMemoryMapEntry, DescriptorSize);\r | |
232 | continue;\r | |
233 | } else {\r | |
234 | MemoryMapEntry = PREVIOUS_MEMORY_DESCRIPTOR (NextMemoryMapEntry, DescriptorSize);\r | |
235 | break;\r | |
236 | }\r | |
237 | } while (TRUE);\r | |
238 | \r | |
239 | MemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r | |
240 | NewMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (NewMemoryMapEntry, DescriptorSize);\r | |
241 | }\r | |
242 | \r | |
243 | *MemoryMapSize = (UINTN)NewMemoryMapEntry - (UINTN)MemoryMap;\r | |
244 | \r | |
245 | return ;\r | |
246 | }\r | |
247 | \r | |
248 | /**\r | |
249 | Enforce memory map attributes.\r | |
250 | This function will set EfiRuntimeServicesData/EfiMemoryMappedIO/EfiMemoryMappedIOPortSpace to be EFI_MEMORY_XP.\r | |
251 | \r | |
252 | @param[in, out] MemoryMap A pointer to the buffer in which firmware places\r | |
253 | the current memory map.\r | |
254 | @param[in] MemoryMapSize Size, in bytes, of the MemoryMap buffer.\r | |
255 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
256 | **/\r | |
257 | STATIC\r | |
258 | VOID\r | |
259 | EnforceMemoryMapAttribute (\r | |
260 | IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,\r | |
261 | IN UINTN MemoryMapSize,\r | |
262 | IN UINTN DescriptorSize\r | |
263 | )\r | |
264 | {\r | |
265 | EFI_MEMORY_DESCRIPTOR *MemoryMapEntry;\r | |
266 | EFI_MEMORY_DESCRIPTOR *MemoryMapEnd;\r | |
267 | \r | |
268 | MemoryMapEntry = MemoryMap;\r | |
269 | MemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) MemoryMap + MemoryMapSize);\r | |
270 | while ((UINTN)MemoryMapEntry < (UINTN)MemoryMapEnd) {\r | |
026e2ca2 JY |
271 | if (MemoryMapEntry->Attribute != 0) {\r |
272 | // It is PE image, the attribute is already set.\r | |
273 | } else {\r | |
274 | switch (MemoryMapEntry->Type) {\r | |
275 | case EfiRuntimeServicesCode:\r | |
276 | MemoryMapEntry->Attribute = EFI_MEMORY_RO;\r | |
277 | break;\r | |
278 | case EfiRuntimeServicesData:\r | |
279 | default:\r | |
280 | MemoryMapEntry->Attribute |= EFI_MEMORY_XP;\r | |
281 | break;\r | |
282 | }\r | |
285a682c | 283 | }\r |
285a682c JY |
284 | MemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);\r |
285 | }\r | |
286 | \r | |
287 | return ;\r | |
288 | }\r | |
289 | \r | |
290 | /**\r | |
291 | Return the first image record, whose [ImageBase, ImageSize] covered by [Buffer, Length].\r | |
292 | \r | |
293 | @param[in] Buffer Start Address\r | |
294 | @param[in] Length Address length\r | |
295 | \r | |
296 | @return first image record covered by [buffer, length]\r | |
297 | **/\r | |
298 | STATIC\r | |
299 | IMAGE_PROPERTIES_RECORD *\r | |
300 | GetImageRecordByAddress (\r | |
301 | IN EFI_PHYSICAL_ADDRESS Buffer,\r | |
302 | IN UINT64 Length\r | |
303 | )\r | |
304 | {\r | |
305 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
306 | LIST_ENTRY *ImageRecordLink;\r | |
307 | LIST_ENTRY *ImageRecordList;\r | |
308 | \r | |
309 | ImageRecordList = &mImagePropertiesPrivateData.ImageRecordList;\r | |
310 | \r | |
311 | for (ImageRecordLink = ImageRecordList->ForwardLink;\r | |
312 | ImageRecordLink != ImageRecordList;\r | |
313 | ImageRecordLink = ImageRecordLink->ForwardLink) {\r | |
314 | ImageRecord = CR (\r | |
315 | ImageRecordLink,\r | |
316 | IMAGE_PROPERTIES_RECORD,\r | |
317 | Link,\r | |
318 | IMAGE_PROPERTIES_RECORD_SIGNATURE\r | |
319 | );\r | |
320 | \r | |
321 | if ((Buffer <= ImageRecord->ImageBase) &&\r | |
322 | (Buffer + Length >= ImageRecord->ImageBase + ImageRecord->ImageSize)) {\r | |
323 | return ImageRecord;\r | |
324 | }\r | |
325 | }\r | |
326 | \r | |
327 | return NULL;\r | |
328 | }\r | |
329 | \r | |
330 | /**\r | |
331 | Set the memory map to new entries, according to one old entry,\r | |
332 | based upon PE code section and data section in image record\r | |
333 | \r | |
334 | @param[in] ImageRecord An image record whose [ImageBase, ImageSize] covered\r | |
335 | by old memory map entry.\r | |
336 | @param[in, out] NewRecord A pointer to several new memory map entries.\r | |
337 | The caller gurantee the buffer size be 1 +\r | |
338 | (SplitRecordCount * DescriptorSize) calculated\r | |
339 | below.\r | |
340 | @param[in] OldRecord A pointer to one old memory map entry.\r | |
341 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
342 | **/\r | |
343 | STATIC\r | |
344 | UINTN\r | |
345 | SetNewRecord (\r | |
346 | IN IMAGE_PROPERTIES_RECORD *ImageRecord,\r | |
347 | IN OUT EFI_MEMORY_DESCRIPTOR *NewRecord,\r | |
348 | IN EFI_MEMORY_DESCRIPTOR *OldRecord,\r | |
349 | IN UINTN DescriptorSize\r | |
350 | )\r | |
351 | {\r | |
352 | EFI_MEMORY_DESCRIPTOR TempRecord;\r | |
353 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *ImageRecordCodeSection;\r | |
354 | LIST_ENTRY *ImageRecordCodeSectionLink;\r | |
355 | LIST_ENTRY *ImageRecordCodeSectionEndLink;\r | |
356 | LIST_ENTRY *ImageRecordCodeSectionList;\r | |
357 | UINTN NewRecordCount;\r | |
358 | UINT64 PhysicalEnd;\r | |
359 | UINT64 ImageEnd;\r | |
360 | \r | |
361 | CopyMem (&TempRecord, OldRecord, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
362 | PhysicalEnd = TempRecord.PhysicalStart + EfiPagesToSize(TempRecord.NumberOfPages);\r | |
363 | NewRecordCount = 0;\r | |
364 | \r | |
026e2ca2 JY |
365 | //\r |
366 | // Always create a new entry for non-PE image record\r | |
367 | //\r | |
368 | if (ImageRecord->ImageBase > TempRecord.PhysicalStart) {\r | |
369 | NewRecord->Type = TempRecord.Type;\r | |
370 | NewRecord->PhysicalStart = TempRecord.PhysicalStart;\r | |
371 | NewRecord->VirtualStart = 0;\r | |
372 | NewRecord->NumberOfPages = EfiSizeToPages(ImageRecord->ImageBase - TempRecord.PhysicalStart);\r | |
373 | NewRecord->Attribute = TempRecord.Attribute;\r | |
374 | NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);\r | |
375 | NewRecordCount ++;\r | |
376 | TempRecord.PhysicalStart = ImageRecord->ImageBase;\r | |
377 | TempRecord.NumberOfPages = EfiSizeToPages(PhysicalEnd - TempRecord.PhysicalStart);\r | |
378 | }\r | |
379 | \r | |
285a682c JY |
380 | ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;\r |
381 | \r | |
382 | ImageRecordCodeSectionLink = ImageRecordCodeSectionList->ForwardLink;\r | |
383 | ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;\r | |
384 | while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {\r | |
385 | ImageRecordCodeSection = CR (\r | |
386 | ImageRecordCodeSectionLink,\r | |
387 | IMAGE_PROPERTIES_RECORD_CODE_SECTION,\r | |
388 | Link,\r | |
389 | IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE\r | |
390 | );\r | |
391 | ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;\r | |
392 | \r | |
393 | if (TempRecord.PhysicalStart <= ImageRecordCodeSection->CodeSegmentBase) {\r | |
394 | //\r | |
395 | // DATA\r | |
396 | //\r | |
397 | NewRecord->Type = EfiRuntimeServicesData;\r | |
398 | NewRecord->PhysicalStart = TempRecord.PhysicalStart;\r | |
399 | NewRecord->VirtualStart = 0;\r | |
400 | NewRecord->NumberOfPages = EfiSizeToPages(ImageRecordCodeSection->CodeSegmentBase - NewRecord->PhysicalStart);\r | |
401 | NewRecord->Attribute = TempRecord.Attribute | EFI_MEMORY_XP;\r | |
402 | if (NewRecord->NumberOfPages != 0) {\r | |
403 | NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);\r | |
404 | NewRecordCount ++;\r | |
405 | }\r | |
406 | \r | |
407 | //\r | |
408 | // CODE\r | |
409 | //\r | |
410 | NewRecord->Type = EfiRuntimeServicesCode;\r | |
411 | NewRecord->PhysicalStart = ImageRecordCodeSection->CodeSegmentBase;\r | |
412 | NewRecord->VirtualStart = 0;\r | |
413 | NewRecord->NumberOfPages = EfiSizeToPages(ImageRecordCodeSection->CodeSegmentSize);\r | |
414 | NewRecord->Attribute = (TempRecord.Attribute & (~EFI_MEMORY_XP)) | EFI_MEMORY_RO;\r | |
415 | if (NewRecord->NumberOfPages != 0) {\r | |
416 | NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);\r | |
417 | NewRecordCount ++;\r | |
418 | }\r | |
419 | \r | |
420 | TempRecord.PhysicalStart = ImageRecordCodeSection->CodeSegmentBase + EfiPagesToSize (EfiSizeToPages(ImageRecordCodeSection->CodeSegmentSize));\r | |
421 | TempRecord.NumberOfPages = EfiSizeToPages(PhysicalEnd - TempRecord.PhysicalStart);\r | |
422 | if (TempRecord.NumberOfPages == 0) {\r | |
423 | break;\r | |
424 | }\r | |
425 | }\r | |
426 | }\r | |
427 | \r | |
428 | ImageEnd = ImageRecord->ImageBase + ImageRecord->ImageSize;\r | |
429 | \r | |
430 | //\r | |
431 | // Final DATA\r | |
432 | //\r | |
433 | if (TempRecord.PhysicalStart < ImageEnd) {\r | |
434 | NewRecord->Type = EfiRuntimeServicesData;\r | |
435 | NewRecord->PhysicalStart = TempRecord.PhysicalStart;\r | |
436 | NewRecord->VirtualStart = 0;\r | |
437 | NewRecord->NumberOfPages = EfiSizeToPages (ImageEnd - TempRecord.PhysicalStart);\r | |
438 | NewRecord->Attribute = TempRecord.Attribute | EFI_MEMORY_XP;\r | |
439 | NewRecordCount ++;\r | |
440 | }\r | |
441 | \r | |
442 | return NewRecordCount;\r | |
443 | }\r | |
444 | \r | |
445 | /**\r | |
446 | Return the max number of new splitted entries, according to one old entry,\r | |
447 | based upon PE code section and data section.\r | |
448 | \r | |
449 | @param[in] OldRecord A pointer to one old memory map entry.\r | |
450 | \r | |
451 | @retval 0 no entry need to be splitted.\r | |
452 | @return the max number of new splitted entries\r | |
453 | **/\r | |
454 | STATIC\r | |
455 | UINTN\r | |
456 | GetMaxSplitRecordCount (\r | |
457 | IN EFI_MEMORY_DESCRIPTOR *OldRecord\r | |
458 | )\r | |
459 | {\r | |
460 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
461 | UINTN SplitRecordCount;\r | |
462 | UINT64 PhysicalStart;\r | |
463 | UINT64 PhysicalEnd;\r | |
464 | \r | |
465 | SplitRecordCount = 0;\r | |
466 | PhysicalStart = OldRecord->PhysicalStart;\r | |
467 | PhysicalEnd = OldRecord->PhysicalStart + EfiPagesToSize(OldRecord->NumberOfPages);\r | |
468 | \r | |
469 | do {\r | |
470 | ImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart);\r | |
471 | if (ImageRecord == NULL) {\r | |
472 | break;\r | |
473 | }\r | |
026e2ca2 | 474 | SplitRecordCount += (2 * ImageRecord->CodeSegmentCount + 2);\r |
285a682c JY |
475 | PhysicalStart = ImageRecord->ImageBase + ImageRecord->ImageSize;\r |
476 | } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));\r | |
477 | \r | |
285a682c JY |
478 | return SplitRecordCount;\r |
479 | }\r | |
480 | \r | |
481 | /**\r | |
482 | Split the memory map to new entries, according to one old entry,\r | |
483 | based upon PE code section and data section.\r | |
484 | \r | |
485 | @param[in] OldRecord A pointer to one old memory map entry.\r | |
486 | @param[in, out] NewRecord A pointer to several new memory map entries.\r | |
487 | The caller gurantee the buffer size be 1 +\r | |
488 | (SplitRecordCount * DescriptorSize) calculated\r | |
489 | below.\r | |
490 | @param[in] MaxSplitRecordCount The max number of splitted entries\r | |
491 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
492 | \r | |
493 | @retval 0 no entry is splitted.\r | |
494 | @return the real number of splitted record.\r | |
495 | **/\r | |
496 | STATIC\r | |
497 | UINTN\r | |
498 | SplitRecord (\r | |
499 | IN EFI_MEMORY_DESCRIPTOR *OldRecord,\r | |
500 | IN OUT EFI_MEMORY_DESCRIPTOR *NewRecord,\r | |
501 | IN UINTN MaxSplitRecordCount,\r | |
502 | IN UINTN DescriptorSize\r | |
503 | )\r | |
504 | {\r | |
505 | EFI_MEMORY_DESCRIPTOR TempRecord;\r | |
506 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
507 | IMAGE_PROPERTIES_RECORD *NewImageRecord;\r | |
508 | UINT64 PhysicalStart;\r | |
509 | UINT64 PhysicalEnd;\r | |
510 | UINTN NewRecordCount;\r | |
511 | UINTN TotalNewRecordCount;\r | |
512 | \r | |
513 | if (MaxSplitRecordCount == 0) {\r | |
514 | CopyMem (NewRecord, OldRecord, DescriptorSize);\r | |
515 | return 0;\r | |
516 | }\r | |
517 | \r | |
518 | TotalNewRecordCount = 0;\r | |
519 | \r | |
520 | //\r | |
521 | // Override previous record\r | |
522 | //\r | |
523 | CopyMem (&TempRecord, OldRecord, sizeof(EFI_MEMORY_DESCRIPTOR));\r | |
524 | PhysicalStart = TempRecord.PhysicalStart;\r | |
525 | PhysicalEnd = TempRecord.PhysicalStart + EfiPagesToSize(TempRecord.NumberOfPages);\r | |
526 | \r | |
527 | ImageRecord = NULL;\r | |
528 | do {\r | |
529 | NewImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart);\r | |
530 | if (NewImageRecord == NULL) {\r | |
531 | //\r | |
532 | // No more image covered by this range, stop\r | |
533 | //\r | |
026e2ca2 | 534 | if (PhysicalEnd > PhysicalStart) {\r |
285a682c | 535 | //\r |
026e2ca2 | 536 | // Always create a new entry for non-PE image record\r |
285a682c | 537 | //\r |
026e2ca2 JY |
538 | NewRecord->Type = TempRecord.Type;\r |
539 | NewRecord->PhysicalStart = TempRecord.PhysicalStart;\r | |
540 | NewRecord->VirtualStart = 0;\r | |
541 | NewRecord->NumberOfPages = TempRecord.NumberOfPages;\r | |
542 | NewRecord->Attribute = TempRecord.Attribute;\r | |
543 | TotalNewRecordCount ++;\r | |
285a682c JY |
544 | }\r |
545 | break;\r | |
546 | }\r | |
547 | ImageRecord = NewImageRecord;\r | |
548 | \r | |
549 | //\r | |
550 | // Set new record\r | |
551 | //\r | |
552 | NewRecordCount = SetNewRecord (ImageRecord, NewRecord, &TempRecord, DescriptorSize);\r | |
553 | TotalNewRecordCount += NewRecordCount;\r | |
554 | NewRecord = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)NewRecord + NewRecordCount * DescriptorSize);\r | |
555 | \r | |
556 | //\r | |
557 | // Update PhysicalStart, in order to exclude the image buffer already splitted.\r | |
558 | //\r | |
559 | PhysicalStart = ImageRecord->ImageBase + ImageRecord->ImageSize;\r | |
560 | TempRecord.PhysicalStart = PhysicalStart;\r | |
561 | TempRecord.NumberOfPages = EfiSizeToPages (PhysicalEnd - PhysicalStart);\r | |
562 | } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));\r | |
563 | \r | |
564 | return TotalNewRecordCount - 1;\r | |
565 | }\r | |
566 | \r | |
567 | /**\r | |
568 | Split the original memory map, and add more entries to describe PE code section and data section.\r | |
569 | This function will set EfiRuntimeServicesData to be EFI_MEMORY_XP.\r | |
570 | This function will merge entries with same attributes finally.\r | |
571 | \r | |
572 | NOTE: It assumes PE code/data section are page aligned.\r | |
573 | NOTE: It assumes enough entry is prepared for new memory map.\r | |
574 | \r | |
575 | Split table:\r | |
576 | +---------------+\r | |
577 | | Record X |\r | |
578 | +---------------+\r | |
579 | | Record RtCode |\r | |
580 | +---------------+\r | |
581 | | Record Y |\r | |
582 | +---------------+\r | |
583 | ==>\r | |
584 | +---------------+\r | |
585 | | Record X |\r | |
026e2ca2 JY |
586 | +---------------+\r |
587 | | Record RtCode |\r | |
285a682c JY |
588 | +---------------+ ----\r |
589 | | Record RtData | |\r | |
590 | +---------------+ |\r | |
591 | | Record RtCode | |-> PE/COFF1\r | |
592 | +---------------+ |\r | |
593 | | Record RtData | |\r | |
594 | +---------------+ ----\r | |
026e2ca2 JY |
595 | | Record RtCode |\r |
596 | +---------------+ ----\r | |
285a682c JY |
597 | | Record RtData | |\r |
598 | +---------------+ |\r | |
599 | | Record RtCode | |-> PE/COFF2\r | |
600 | +---------------+ |\r | |
601 | | Record RtData | |\r | |
602 | +---------------+ ----\r | |
026e2ca2 JY |
603 | | Record RtCode |\r |
604 | +---------------+\r | |
285a682c JY |
605 | | Record Y |\r |
606 | +---------------+\r | |
607 | \r | |
608 | @param[in, out] MemoryMapSize A pointer to the size, in bytes, of the\r | |
609 | MemoryMap buffer. On input, this is the size of\r | |
610 | old MemoryMap before split. The actual buffer\r | |
611 | size of MemoryMap is MemoryMapSize +\r | |
612 | (AdditionalRecordCount * DescriptorSize) calculated\r | |
613 | below. On output, it is the size of new MemoryMap\r | |
614 | after split.\r | |
615 | @param[in, out] MemoryMap A pointer to the buffer in which firmware places\r | |
616 | the current memory map.\r | |
617 | @param[in] DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.\r | |
618 | **/\r | |
619 | STATIC\r | |
620 | VOID\r | |
621 | SplitTable (\r | |
622 | IN OUT UINTN *MemoryMapSize,\r | |
623 | IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,\r | |
624 | IN UINTN DescriptorSize\r | |
625 | )\r | |
626 | {\r | |
627 | INTN IndexOld;\r | |
628 | INTN IndexNew;\r | |
629 | UINTN MaxSplitRecordCount;\r | |
630 | UINTN RealSplitRecordCount;\r | |
631 | UINTN TotalSplitRecordCount;\r | |
632 | UINTN AdditionalRecordCount;\r | |
633 | \r | |
026e2ca2 | 634 | AdditionalRecordCount = (2 * mImagePropertiesPrivateData.CodeSegmentCountMax + 2) * mImagePropertiesPrivateData.ImageRecordCount;\r |
285a682c JY |
635 | \r |
636 | TotalSplitRecordCount = 0;\r | |
637 | //\r | |
638 | // Let old record point to end of valid MemoryMap buffer.\r | |
639 | //\r | |
640 | IndexOld = ((*MemoryMapSize) / DescriptorSize) - 1;\r | |
641 | //\r | |
642 | // Let new record point to end of full MemoryMap buffer.\r | |
643 | //\r | |
644 | IndexNew = ((*MemoryMapSize) / DescriptorSize) - 1 + AdditionalRecordCount;\r | |
645 | for (; IndexOld >= 0; IndexOld--) {\r | |
646 | MaxSplitRecordCount = GetMaxSplitRecordCount ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize));\r | |
647 | //\r | |
648 | // Split this MemoryMap record\r | |
649 | //\r | |
650 | IndexNew -= MaxSplitRecordCount;\r | |
651 | RealSplitRecordCount = SplitRecord (\r | |
652 | (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize),\r | |
653 | (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexNew * DescriptorSize),\r | |
654 | MaxSplitRecordCount,\r | |
655 | DescriptorSize\r | |
656 | );\r | |
657 | //\r | |
658 | // Adjust IndexNew according to real split.\r | |
659 | //\r | |
026e2ca2 JY |
660 | if (MaxSplitRecordCount != RealSplitRecordCount) {\r |
661 | CopyMem (\r | |
662 | ((UINT8 *)MemoryMap + (IndexNew + MaxSplitRecordCount - RealSplitRecordCount) * DescriptorSize),\r | |
663 | ((UINT8 *)MemoryMap + IndexNew * DescriptorSize),\r | |
664 | (RealSplitRecordCount + 1) * DescriptorSize\r | |
665 | );\r | |
666 | }\r | |
285a682c JY |
667 | IndexNew = IndexNew + MaxSplitRecordCount - RealSplitRecordCount;\r |
668 | TotalSplitRecordCount += RealSplitRecordCount;\r | |
669 | IndexNew --;\r | |
670 | }\r | |
671 | //\r | |
672 | // Move all records to the beginning.\r | |
673 | //\r | |
674 | CopyMem (\r | |
675 | MemoryMap,\r | |
676 | (UINT8 *)MemoryMap + (AdditionalRecordCount - TotalSplitRecordCount) * DescriptorSize,\r | |
677 | (*MemoryMapSize) + TotalSplitRecordCount * DescriptorSize\r | |
678 | );\r | |
679 | \r | |
680 | *MemoryMapSize = (*MemoryMapSize) + DescriptorSize * TotalSplitRecordCount;\r | |
681 | \r | |
682 | //\r | |
683 | // Sort from low to high (Just in case)\r | |
684 | //\r | |
685 | SortMemoryMap (MemoryMap, *MemoryMapSize, DescriptorSize);\r | |
686 | \r | |
687 | //\r | |
688 | // Set RuntimeData to XP\r | |
689 | //\r | |
690 | EnforceMemoryMapAttribute (MemoryMap, *MemoryMapSize, DescriptorSize);\r | |
691 | \r | |
692 | //\r | |
693 | // Merge same type to save entry size\r | |
694 | //\r | |
695 | MergeMemoryMap (MemoryMap, MemoryMapSize, DescriptorSize);\r | |
696 | \r | |
697 | return ;\r | |
698 | }\r | |
699 | \r | |
700 | /**\r | |
701 | This function for GetMemoryMap() with memory attributes table.\r | |
702 | \r | |
703 | It calls original GetMemoryMap() to get the original memory map information. Then\r | |
704 | plus the additional memory map entries for PE Code/Data seperation.\r | |
705 | \r | |
706 | @param[in, out] MemoryMapSize A pointer to the size, in bytes, of the\r | |
707 | MemoryMap buffer. On input, this is the size of\r | |
708 | the buffer allocated by the caller. On output,\r | |
709 | it is the size of the buffer returned by the\r | |
710 | firmware if the buffer was large enough, or the\r | |
711 | size of the buffer needed to contain the map if\r | |
712 | the buffer was too small.\r | |
713 | @param[in, out] MemoryMap A pointer to the buffer in which firmware places\r | |
714 | the current memory map.\r | |
715 | @param[out] MapKey A pointer to the location in which firmware\r | |
716 | returns the key for the current memory map.\r | |
717 | @param[out] DescriptorSize A pointer to the location in which firmware\r | |
718 | returns the size, in bytes, of an individual\r | |
719 | EFI_MEMORY_DESCRIPTOR.\r | |
720 | @param[out] DescriptorVersion A pointer to the location in which firmware\r | |
721 | returns the version number associated with the\r | |
722 | EFI_MEMORY_DESCRIPTOR.\r | |
723 | \r | |
724 | @retval EFI_SUCCESS The memory map was returned in the MemoryMap\r | |
725 | buffer.\r | |
726 | @retval EFI_BUFFER_TOO_SMALL The MemoryMap buffer was too small. The current\r | |
727 | buffer size needed to hold the memory map is\r | |
728 | returned in MemoryMapSize.\r | |
729 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
730 | \r | |
731 | **/\r | |
732 | STATIC\r | |
733 | EFI_STATUS\r | |
734 | EFIAPI\r | |
735 | SmmCoreGetMemoryMapMemoryAttributesTable (\r | |
736 | IN OUT UINTN *MemoryMapSize,\r | |
737 | IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,\r | |
738 | OUT UINTN *MapKey,\r | |
739 | OUT UINTN *DescriptorSize,\r | |
740 | OUT UINT32 *DescriptorVersion\r | |
741 | )\r | |
742 | {\r | |
743 | EFI_STATUS Status;\r | |
744 | UINTN OldMemoryMapSize;\r | |
745 | UINTN AdditionalRecordCount;\r | |
746 | \r | |
747 | //\r | |
748 | // If PE code/data is not aligned, just return.\r | |
749 | //\r | |
750 | if ((mMemoryProtectionAttribute & EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA) == 0) {\r | |
751 | return SmmCoreGetMemoryMap (MemoryMapSize, MemoryMap, MapKey, DescriptorSize, DescriptorVersion);\r | |
752 | }\r | |
753 | \r | |
754 | if (MemoryMapSize == NULL) {\r | |
755 | return EFI_INVALID_PARAMETER;\r | |
756 | }\r | |
757 | \r | |
026e2ca2 | 758 | AdditionalRecordCount = (2 * mImagePropertiesPrivateData.CodeSegmentCountMax + 2) * mImagePropertiesPrivateData.ImageRecordCount;\r |
285a682c JY |
759 | \r |
760 | OldMemoryMapSize = *MemoryMapSize;\r | |
761 | Status = SmmCoreGetMemoryMap (MemoryMapSize, MemoryMap, MapKey, DescriptorSize, DescriptorVersion);\r | |
762 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
763 | *MemoryMapSize = *MemoryMapSize + (*DescriptorSize) * AdditionalRecordCount;\r | |
764 | } else if (Status == EFI_SUCCESS) {\r | |
765 | if (OldMemoryMapSize - *MemoryMapSize < (*DescriptorSize) * AdditionalRecordCount) {\r | |
766 | *MemoryMapSize = *MemoryMapSize + (*DescriptorSize) * AdditionalRecordCount;\r | |
767 | //\r | |
768 | // Need update status to buffer too small\r | |
769 | //\r | |
770 | Status = EFI_BUFFER_TOO_SMALL;\r | |
771 | } else {\r | |
772 | //\r | |
773 | // Split PE code/data\r | |
774 | //\r | |
775 | ASSERT(MemoryMap != NULL);\r | |
776 | SplitTable (MemoryMapSize, MemoryMap, *DescriptorSize);\r | |
777 | }\r | |
778 | }\r | |
779 | \r | |
780 | return Status;\r | |
781 | }\r | |
782 | \r | |
783 | //\r | |
784 | // Below functions are for ImageRecord\r | |
785 | //\r | |
786 | \r | |
787 | /**\r | |
24648548 | 788 | Set MemoryProtectionAttribute according to PE/COFF image section alignment.\r |
285a682c JY |
789 | \r |
790 | @param[in] SectionAlignment PE/COFF section alignment\r | |
791 | **/\r | |
792 | STATIC\r | |
793 | VOID\r | |
794 | SetMemoryAttributesTableSectionAlignment (\r | |
795 | IN UINT32 SectionAlignment\r | |
796 | )\r | |
797 | {\r | |
115d9753 | 798 | if (((SectionAlignment & (RUNTIME_PAGE_ALLOCATION_GRANULARITY - 1)) != 0) &&\r |
285a682c JY |
799 | ((mMemoryProtectionAttribute & EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA) != 0)) {\r |
800 | DEBUG ((DEBUG_VERBOSE, "SMM SetMemoryAttributesTableSectionAlignment - Clear\n"));\r | |
801 | mMemoryProtectionAttribute &= ~((UINT64)EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA);\r | |
802 | }\r | |
803 | }\r | |
804 | \r | |
805 | /**\r | |
806 | Swap two code sections in image record.\r | |
807 | \r | |
808 | @param[in] FirstImageRecordCodeSection first code section in image record\r | |
809 | @param[in] SecondImageRecordCodeSection second code section in image record\r | |
810 | **/\r | |
811 | STATIC\r | |
812 | VOID\r | |
813 | SwapImageRecordCodeSection (\r | |
814 | IN IMAGE_PROPERTIES_RECORD_CODE_SECTION *FirstImageRecordCodeSection,\r | |
815 | IN IMAGE_PROPERTIES_RECORD_CODE_SECTION *SecondImageRecordCodeSection\r | |
816 | )\r | |
817 | {\r | |
818 | IMAGE_PROPERTIES_RECORD_CODE_SECTION TempImageRecordCodeSection;\r | |
819 | \r | |
820 | TempImageRecordCodeSection.CodeSegmentBase = FirstImageRecordCodeSection->CodeSegmentBase;\r | |
821 | TempImageRecordCodeSection.CodeSegmentSize = FirstImageRecordCodeSection->CodeSegmentSize;\r | |
822 | \r | |
823 | FirstImageRecordCodeSection->CodeSegmentBase = SecondImageRecordCodeSection->CodeSegmentBase;\r | |
824 | FirstImageRecordCodeSection->CodeSegmentSize = SecondImageRecordCodeSection->CodeSegmentSize;\r | |
825 | \r | |
826 | SecondImageRecordCodeSection->CodeSegmentBase = TempImageRecordCodeSection.CodeSegmentBase;\r | |
827 | SecondImageRecordCodeSection->CodeSegmentSize = TempImageRecordCodeSection.CodeSegmentSize;\r | |
828 | }\r | |
829 | \r | |
830 | /**\r | |
831 | Sort code section in image record, based upon CodeSegmentBase from low to high.\r | |
832 | \r | |
833 | @param[in] ImageRecord image record to be sorted\r | |
834 | **/\r | |
835 | STATIC\r | |
836 | VOID\r | |
837 | SortImageRecordCodeSection (\r | |
838 | IN IMAGE_PROPERTIES_RECORD *ImageRecord\r | |
839 | )\r | |
840 | {\r | |
841 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *ImageRecordCodeSection;\r | |
842 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *NextImageRecordCodeSection;\r | |
843 | LIST_ENTRY *ImageRecordCodeSectionLink;\r | |
844 | LIST_ENTRY *NextImageRecordCodeSectionLink;\r | |
845 | LIST_ENTRY *ImageRecordCodeSectionEndLink;\r | |
846 | LIST_ENTRY *ImageRecordCodeSectionList;\r | |
847 | \r | |
848 | ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;\r | |
849 | \r | |
850 | ImageRecordCodeSectionLink = ImageRecordCodeSectionList->ForwardLink;\r | |
851 | NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;\r | |
852 | ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;\r | |
853 | while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {\r | |
854 | ImageRecordCodeSection = CR (\r | |
855 | ImageRecordCodeSectionLink,\r | |
856 | IMAGE_PROPERTIES_RECORD_CODE_SECTION,\r | |
857 | Link,\r | |
858 | IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE\r | |
859 | );\r | |
860 | while (NextImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {\r | |
861 | NextImageRecordCodeSection = CR (\r | |
862 | NextImageRecordCodeSectionLink,\r | |
863 | IMAGE_PROPERTIES_RECORD_CODE_SECTION,\r | |
864 | Link,\r | |
865 | IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE\r | |
866 | );\r | |
867 | if (ImageRecordCodeSection->CodeSegmentBase > NextImageRecordCodeSection->CodeSegmentBase) {\r | |
868 | SwapImageRecordCodeSection (ImageRecordCodeSection, NextImageRecordCodeSection);\r | |
869 | }\r | |
870 | NextImageRecordCodeSectionLink = NextImageRecordCodeSectionLink->ForwardLink;\r | |
871 | }\r | |
872 | \r | |
873 | ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;\r | |
874 | NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;\r | |
875 | }\r | |
876 | }\r | |
877 | \r | |
878 | /**\r | |
879 | Check if code section in image record is valid.\r | |
880 | \r | |
881 | @param[in] ImageRecord image record to be checked\r | |
882 | \r | |
883 | @retval TRUE image record is valid\r | |
884 | @retval FALSE image record is invalid\r | |
885 | **/\r | |
886 | STATIC\r | |
887 | BOOLEAN\r | |
888 | IsImageRecordCodeSectionValid (\r | |
889 | IN IMAGE_PROPERTIES_RECORD *ImageRecord\r | |
890 | )\r | |
891 | {\r | |
892 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *ImageRecordCodeSection;\r | |
893 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *LastImageRecordCodeSection;\r | |
894 | LIST_ENTRY *ImageRecordCodeSectionLink;\r | |
895 | LIST_ENTRY *ImageRecordCodeSectionEndLink;\r | |
896 | LIST_ENTRY *ImageRecordCodeSectionList;\r | |
897 | \r | |
898 | DEBUG ((DEBUG_VERBOSE, "SMM ImageCode SegmentCount - 0x%x\n", ImageRecord->CodeSegmentCount));\r | |
899 | \r | |
900 | ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;\r | |
901 | \r | |
902 | ImageRecordCodeSectionLink = ImageRecordCodeSectionList->ForwardLink;\r | |
903 | ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;\r | |
904 | LastImageRecordCodeSection = NULL;\r | |
905 | while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {\r | |
906 | ImageRecordCodeSection = CR (\r | |
907 | ImageRecordCodeSectionLink,\r | |
908 | IMAGE_PROPERTIES_RECORD_CODE_SECTION,\r | |
909 | Link,\r | |
910 | IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE\r | |
911 | );\r | |
912 | if (ImageRecordCodeSection->CodeSegmentSize == 0) {\r | |
913 | return FALSE;\r | |
914 | }\r | |
915 | if (ImageRecordCodeSection->CodeSegmentBase < ImageRecord->ImageBase) {\r | |
916 | return FALSE;\r | |
917 | }\r | |
918 | if (ImageRecordCodeSection->CodeSegmentBase >= MAX_ADDRESS - ImageRecordCodeSection->CodeSegmentSize) {\r | |
919 | return FALSE;\r | |
920 | }\r | |
921 | if ((ImageRecordCodeSection->CodeSegmentBase + ImageRecordCodeSection->CodeSegmentSize) > (ImageRecord->ImageBase + ImageRecord->ImageSize)) {\r | |
922 | return FALSE;\r | |
923 | }\r | |
924 | if (LastImageRecordCodeSection != NULL) {\r | |
925 | if ((LastImageRecordCodeSection->CodeSegmentBase + LastImageRecordCodeSection->CodeSegmentSize) > ImageRecordCodeSection->CodeSegmentBase) {\r | |
926 | return FALSE;\r | |
927 | }\r | |
928 | }\r | |
929 | \r | |
930 | LastImageRecordCodeSection = ImageRecordCodeSection;\r | |
931 | ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;\r | |
932 | }\r | |
933 | \r | |
934 | return TRUE;\r | |
935 | }\r | |
936 | \r | |
937 | /**\r | |
938 | Swap two image records.\r | |
939 | \r | |
940 | @param[in] FirstImageRecord first image record.\r | |
941 | @param[in] SecondImageRecord second image record.\r | |
942 | **/\r | |
943 | STATIC\r | |
944 | VOID\r | |
945 | SwapImageRecord (\r | |
946 | IN IMAGE_PROPERTIES_RECORD *FirstImageRecord,\r | |
947 | IN IMAGE_PROPERTIES_RECORD *SecondImageRecord\r | |
948 | )\r | |
949 | {\r | |
950 | IMAGE_PROPERTIES_RECORD TempImageRecord;\r | |
951 | \r | |
952 | TempImageRecord.ImageBase = FirstImageRecord->ImageBase;\r | |
953 | TempImageRecord.ImageSize = FirstImageRecord->ImageSize;\r | |
954 | TempImageRecord.CodeSegmentCount = FirstImageRecord->CodeSegmentCount;\r | |
955 | \r | |
956 | FirstImageRecord->ImageBase = SecondImageRecord->ImageBase;\r | |
957 | FirstImageRecord->ImageSize = SecondImageRecord->ImageSize;\r | |
958 | FirstImageRecord->CodeSegmentCount = SecondImageRecord->CodeSegmentCount;\r | |
959 | \r | |
960 | SecondImageRecord->ImageBase = TempImageRecord.ImageBase;\r | |
961 | SecondImageRecord->ImageSize = TempImageRecord.ImageSize;\r | |
962 | SecondImageRecord->CodeSegmentCount = TempImageRecord.CodeSegmentCount;\r | |
963 | \r | |
964 | SwapListEntries (&FirstImageRecord->CodeSegmentList, &SecondImageRecord->CodeSegmentList);\r | |
965 | }\r | |
966 | \r | |
967 | /**\r | |
968 | Sort image record based upon the ImageBase from low to high.\r | |
969 | **/\r | |
970 | STATIC\r | |
971 | VOID\r | |
972 | SortImageRecord (\r | |
973 | VOID\r | |
974 | )\r | |
975 | {\r | |
976 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
977 | IMAGE_PROPERTIES_RECORD *NextImageRecord;\r | |
978 | LIST_ENTRY *ImageRecordLink;\r | |
979 | LIST_ENTRY *NextImageRecordLink;\r | |
980 | LIST_ENTRY *ImageRecordEndLink;\r | |
981 | LIST_ENTRY *ImageRecordList;\r | |
982 | \r | |
983 | ImageRecordList = &mImagePropertiesPrivateData.ImageRecordList;\r | |
984 | \r | |
985 | ImageRecordLink = ImageRecordList->ForwardLink;\r | |
986 | NextImageRecordLink = ImageRecordLink->ForwardLink;\r | |
987 | ImageRecordEndLink = ImageRecordList;\r | |
988 | while (ImageRecordLink != ImageRecordEndLink) {\r | |
989 | ImageRecord = CR (\r | |
990 | ImageRecordLink,\r | |
991 | IMAGE_PROPERTIES_RECORD,\r | |
992 | Link,\r | |
993 | IMAGE_PROPERTIES_RECORD_SIGNATURE\r | |
994 | );\r | |
995 | while (NextImageRecordLink != ImageRecordEndLink) {\r | |
996 | NextImageRecord = CR (\r | |
997 | NextImageRecordLink,\r | |
998 | IMAGE_PROPERTIES_RECORD,\r | |
999 | Link,\r | |
1000 | IMAGE_PROPERTIES_RECORD_SIGNATURE\r | |
1001 | );\r | |
1002 | if (ImageRecord->ImageBase > NextImageRecord->ImageBase) {\r | |
1003 | SwapImageRecord (ImageRecord, NextImageRecord);\r | |
1004 | }\r | |
1005 | NextImageRecordLink = NextImageRecordLink->ForwardLink;\r | |
1006 | }\r | |
1007 | \r | |
1008 | ImageRecordLink = ImageRecordLink->ForwardLink;\r | |
1009 | NextImageRecordLink = ImageRecordLink->ForwardLink;\r | |
1010 | }\r | |
1011 | }\r | |
1012 | \r | |
1013 | /**\r | |
1014 | Dump image record.\r | |
1015 | **/\r | |
1016 | STATIC\r | |
1017 | VOID\r | |
1018 | DumpImageRecord (\r | |
1019 | VOID\r | |
1020 | )\r | |
1021 | {\r | |
1022 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
1023 | LIST_ENTRY *ImageRecordLink;\r | |
1024 | LIST_ENTRY *ImageRecordList;\r | |
1025 | UINTN Index;\r | |
1026 | \r | |
1027 | ImageRecordList = &mImagePropertiesPrivateData.ImageRecordList;\r | |
1028 | \r | |
1029 | for (ImageRecordLink = ImageRecordList->ForwardLink, Index= 0;\r | |
1030 | ImageRecordLink != ImageRecordList;\r | |
1031 | ImageRecordLink = ImageRecordLink->ForwardLink, Index++) {\r | |
1032 | ImageRecord = CR (\r | |
1033 | ImageRecordLink,\r | |
1034 | IMAGE_PROPERTIES_RECORD,\r | |
1035 | Link,\r | |
1036 | IMAGE_PROPERTIES_RECORD_SIGNATURE\r | |
1037 | );\r | |
1038 | DEBUG ((DEBUG_VERBOSE, "SMM Image[%d]: 0x%016lx - 0x%016lx\n", Index, ImageRecord->ImageBase, ImageRecord->ImageSize));\r | |
1039 | }\r | |
1040 | }\r | |
1041 | \r | |
1042 | /**\r | |
1043 | Insert image record.\r | |
1044 | \r | |
1045 | @param[in] DriverEntry Driver information\r | |
1046 | **/\r | |
1047 | VOID\r | |
1048 | SmmInsertImageRecord (\r | |
1049 | IN EFI_SMM_DRIVER_ENTRY *DriverEntry\r | |
1050 | )\r | |
1051 | {\r | |
1052 | VOID *ImageAddress;\r | |
1053 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
1054 | UINT32 PeCoffHeaderOffset;\r | |
1055 | UINT32 SectionAlignment;\r | |
1056 | EFI_IMAGE_SECTION_HEADER *Section;\r | |
1057 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
1058 | UINT8 *Name;\r | |
1059 | UINTN Index;\r | |
1060 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
1061 | CHAR8 *PdbPointer;\r | |
1062 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *ImageRecordCodeSection;\r | |
1063 | UINT16 Magic;\r | |
1064 | \r | |
1065 | DEBUG ((DEBUG_VERBOSE, "SMM InsertImageRecord - 0x%x\n", DriverEntry));\r | |
1066 | DEBUG ((DEBUG_VERBOSE, "SMM InsertImageRecord - 0x%016lx - 0x%08x\n", DriverEntry->ImageBuffer, DriverEntry->NumberOfPage));\r | |
1067 | \r | |
1068 | ImageRecord = AllocatePool (sizeof(*ImageRecord));\r | |
1069 | if (ImageRecord == NULL) {\r | |
1070 | return ;\r | |
1071 | }\r | |
1072 | ImageRecord->Signature = IMAGE_PROPERTIES_RECORD_SIGNATURE;\r | |
1073 | \r | |
1074 | DEBUG ((DEBUG_VERBOSE, "SMM ImageRecordCount - 0x%x\n", mImagePropertiesPrivateData.ImageRecordCount));\r | |
1075 | \r | |
1076 | //\r | |
1077 | // Step 1: record whole region\r | |
1078 | //\r | |
1079 | ImageRecord->ImageBase = DriverEntry->ImageBuffer;\r | |
f1afa0a9 | 1080 | ImageRecord->ImageSize = EfiPagesToSize(DriverEntry->NumberOfPage);\r |
285a682c JY |
1081 | \r |
1082 | ImageAddress = (VOID *)(UINTN)DriverEntry->ImageBuffer;\r | |
1083 | \r | |
1084 | PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageAddress);\r | |
1085 | if (PdbPointer != NULL) {\r | |
1086 | DEBUG ((DEBUG_VERBOSE, "SMM Image - %a\n", PdbPointer));\r | |
1087 | }\r | |
1088 | \r | |
1089 | //\r | |
1090 | // Check PE/COFF image\r | |
1091 | //\r | |
1092 | DosHdr = (EFI_IMAGE_DOS_HEADER *) (UINTN) ImageAddress;\r | |
1093 | PeCoffHeaderOffset = 0;\r | |
1094 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
1095 | PeCoffHeaderOffset = DosHdr->e_lfanew;\r | |
1096 | }\r | |
1097 | \r | |
1098 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINT8 *) (UINTN) ImageAddress + PeCoffHeaderOffset);\r | |
1099 | if (Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {\r | |
1100 | DEBUG ((DEBUG_VERBOSE, "SMM Hdr.Pe32->Signature invalid - 0x%x\n", Hdr.Pe32->Signature));\r | |
1101 | goto Finish;\r | |
1102 | }\r | |
1103 | \r | |
1104 | //\r | |
1105 | // Get SectionAlignment\r | |
1106 | //\r | |
1107 | if (Hdr.Pe32->FileHeader.Machine == IMAGE_FILE_MACHINE_IA64 && Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1108 | //\r | |
1109 | // NOTE: Some versions of Linux ELILO for Itanium have an incorrect magic value\r | |
1110 | // in the PE/COFF Header. If the MachineType is Itanium(IA64) and the\r | |
1111 | // Magic value in the OptionalHeader is EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC\r | |
1112 | // then override the magic value to EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC\r | |
1113 | //\r | |
1114 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1115 | } else {\r | |
1116 | //\r | |
1117 | // Get the magic value from the PE/COFF Optional Header\r | |
1118 | //\r | |
1119 | Magic = Hdr.Pe32->OptionalHeader.Magic;\r | |
1120 | }\r | |
1121 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1122 | SectionAlignment = Hdr.Pe32->OptionalHeader.SectionAlignment;\r | |
1123 | } else {\r | |
1124 | SectionAlignment = Hdr.Pe32Plus->OptionalHeader.SectionAlignment;\r | |
1125 | }\r | |
1126 | \r | |
1127 | SetMemoryAttributesTableSectionAlignment (SectionAlignment);\r | |
115d9753 | 1128 | if ((SectionAlignment & (RUNTIME_PAGE_ALLOCATION_GRANULARITY - 1)) != 0) {\r |
92b126ae | 1129 | DEBUG ((DEBUG_WARN, "SMM !!!!!!!! InsertImageRecord - Section Alignment(0x%x) is not %dK !!!!!!!!\n",\r |
115d9753 | 1130 | SectionAlignment, RUNTIME_PAGE_ALLOCATION_GRANULARITY >> 10));\r |
285a682c JY |
1131 | PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageAddress);\r |
1132 | if (PdbPointer != NULL) {\r | |
92b126ae | 1133 | DEBUG ((DEBUG_WARN, "SMM !!!!!!!! Image - %a !!!!!!!!\n", PdbPointer));\r |
285a682c JY |
1134 | }\r |
1135 | goto Finish;\r | |
1136 | }\r | |
1137 | \r | |
1138 | Section = (EFI_IMAGE_SECTION_HEADER *) (\r | |
1139 | (UINT8 *) (UINTN) ImageAddress +\r | |
1140 | PeCoffHeaderOffset +\r | |
1141 | sizeof(UINT32) +\r | |
1142 | sizeof(EFI_IMAGE_FILE_HEADER) +\r | |
1143 | Hdr.Pe32->FileHeader.SizeOfOptionalHeader\r | |
1144 | );\r | |
1145 | ImageRecord->CodeSegmentCount = 0;\r | |
1146 | InitializeListHead (&ImageRecord->CodeSegmentList);\r | |
1147 | for (Index = 0; Index < Hdr.Pe32->FileHeader.NumberOfSections; Index++) {\r | |
1148 | Name = Section[Index].Name;\r | |
1149 | DEBUG ((\r | |
1150 | DEBUG_VERBOSE,\r | |
1151 | "SMM Section - '%c%c%c%c%c%c%c%c'\n",\r | |
1152 | Name[0],\r | |
1153 | Name[1],\r | |
1154 | Name[2],\r | |
1155 | Name[3],\r | |
1156 | Name[4],\r | |
1157 | Name[5],\r | |
1158 | Name[6],\r | |
1159 | Name[7]\r | |
1160 | ));\r | |
1161 | \r | |
1162 | if ((Section[Index].Characteristics & EFI_IMAGE_SCN_CNT_CODE) != 0) {\r | |
1163 | DEBUG ((DEBUG_VERBOSE, "SMM VirtualSize - 0x%08x\n", Section[Index].Misc.VirtualSize));\r | |
1164 | DEBUG ((DEBUG_VERBOSE, "SMM VirtualAddress - 0x%08x\n", Section[Index].VirtualAddress));\r | |
1165 | DEBUG ((DEBUG_VERBOSE, "SMM SizeOfRawData - 0x%08x\n", Section[Index].SizeOfRawData));\r | |
1166 | DEBUG ((DEBUG_VERBOSE, "SMM PointerToRawData - 0x%08x\n", Section[Index].PointerToRawData));\r | |
1167 | DEBUG ((DEBUG_VERBOSE, "SMM PointerToRelocations - 0x%08x\n", Section[Index].PointerToRelocations));\r | |
1168 | DEBUG ((DEBUG_VERBOSE, "SMM PointerToLinenumbers - 0x%08x\n", Section[Index].PointerToLinenumbers));\r | |
1169 | DEBUG ((DEBUG_VERBOSE, "SMM NumberOfRelocations - 0x%08x\n", Section[Index].NumberOfRelocations));\r | |
1170 | DEBUG ((DEBUG_VERBOSE, "SMM NumberOfLinenumbers - 0x%08x\n", Section[Index].NumberOfLinenumbers));\r | |
1171 | DEBUG ((DEBUG_VERBOSE, "SMM Characteristics - 0x%08x\n", Section[Index].Characteristics));\r | |
1172 | \r | |
1173 | //\r | |
1174 | // Step 2: record code section\r | |
1175 | //\r | |
1176 | ImageRecordCodeSection = AllocatePool (sizeof(*ImageRecordCodeSection));\r | |
1177 | if (ImageRecordCodeSection == NULL) {\r | |
1178 | return ;\r | |
1179 | }\r | |
1180 | ImageRecordCodeSection->Signature = IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE;\r | |
1181 | \r | |
1182 | ImageRecordCodeSection->CodeSegmentBase = (UINTN)ImageAddress + Section[Index].VirtualAddress;\r | |
1183 | ImageRecordCodeSection->CodeSegmentSize = Section[Index].SizeOfRawData;\r | |
1184 | \r | |
1185 | DEBUG ((DEBUG_VERBOSE, "SMM ImageCode: 0x%016lx - 0x%016lx\n", ImageRecordCodeSection->CodeSegmentBase, ImageRecordCodeSection->CodeSegmentSize));\r | |
1186 | \r | |
1187 | InsertTailList (&ImageRecord->CodeSegmentList, &ImageRecordCodeSection->Link);\r | |
1188 | ImageRecord->CodeSegmentCount++;\r | |
1189 | }\r | |
1190 | }\r | |
1191 | \r | |
1192 | if (ImageRecord->CodeSegmentCount == 0) {\r | |
1193 | SetMemoryAttributesTableSectionAlignment (1);\r | |
1194 | DEBUG ((DEBUG_ERROR, "SMM !!!!!!!! InsertImageRecord - CodeSegmentCount is 0 !!!!!!!!\n"));\r | |
1195 | PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageAddress);\r | |
1196 | if (PdbPointer != NULL) {\r | |
1197 | DEBUG ((DEBUG_ERROR, "SMM !!!!!!!! Image - %a !!!!!!!!\n", PdbPointer));\r | |
1198 | }\r | |
1199 | goto Finish;\r | |
1200 | }\r | |
1201 | \r | |
1202 | //\r | |
1203 | // Final\r | |
1204 | //\r | |
1205 | SortImageRecordCodeSection (ImageRecord);\r | |
1206 | //\r | |
1207 | // Check overlap all section in ImageBase/Size\r | |
1208 | //\r | |
1209 | if (!IsImageRecordCodeSectionValid (ImageRecord)) {\r | |
1210 | DEBUG ((DEBUG_ERROR, "SMM IsImageRecordCodeSectionValid - FAIL\n"));\r | |
1211 | goto Finish;\r | |
1212 | }\r | |
1213 | \r | |
1214 | InsertTailList (&mImagePropertiesPrivateData.ImageRecordList, &ImageRecord->Link);\r | |
1215 | mImagePropertiesPrivateData.ImageRecordCount++;\r | |
1216 | \r | |
1217 | SortImageRecord ();\r | |
1218 | \r | |
1219 | if (mImagePropertiesPrivateData.CodeSegmentCountMax < ImageRecord->CodeSegmentCount) {\r | |
1220 | mImagePropertiesPrivateData.CodeSegmentCountMax = ImageRecord->CodeSegmentCount;\r | |
1221 | }\r | |
1222 | \r | |
1223 | Finish:\r | |
1224 | return ;\r | |
1225 | }\r | |
1226 | \r | |
1227 | /**\r | |
24648548 | 1228 | Find image record according to image base and size.\r |
285a682c JY |
1229 | \r |
1230 | @param[in] ImageBase Base of PE image\r | |
1231 | @param[in] ImageSize Size of PE image\r | |
1232 | \r | |
1233 | @return image record\r | |
1234 | **/\r | |
1235 | STATIC\r | |
1236 | IMAGE_PROPERTIES_RECORD *\r | |
1237 | FindImageRecord (\r | |
1238 | IN EFI_PHYSICAL_ADDRESS ImageBase,\r | |
1239 | IN UINT64 ImageSize\r | |
1240 | )\r | |
1241 | {\r | |
1242 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
1243 | LIST_ENTRY *ImageRecordLink;\r | |
1244 | LIST_ENTRY *ImageRecordList;\r | |
1245 | \r | |
1246 | ImageRecordList = &mImagePropertiesPrivateData.ImageRecordList;\r | |
1247 | \r | |
1248 | for (ImageRecordLink = ImageRecordList->ForwardLink;\r | |
1249 | ImageRecordLink != ImageRecordList;\r | |
1250 | ImageRecordLink = ImageRecordLink->ForwardLink) {\r | |
1251 | ImageRecord = CR (\r | |
1252 | ImageRecordLink,\r | |
1253 | IMAGE_PROPERTIES_RECORD,\r | |
1254 | Link,\r | |
1255 | IMAGE_PROPERTIES_RECORD_SIGNATURE\r | |
1256 | );\r | |
1257 | \r | |
1258 | if ((ImageBase == ImageRecord->ImageBase) &&\r | |
1259 | (ImageSize == ImageRecord->ImageSize)) {\r | |
1260 | return ImageRecord;\r | |
1261 | }\r | |
1262 | }\r | |
1263 | \r | |
1264 | return NULL;\r | |
1265 | }\r | |
1266 | \r | |
1267 | /**\r | |
1268 | Remove Image record.\r | |
1269 | \r | |
1270 | @param[in] DriverEntry Driver information\r | |
1271 | **/\r | |
1272 | VOID\r | |
1273 | SmmRemoveImageRecord (\r | |
1274 | IN EFI_SMM_DRIVER_ENTRY *DriverEntry\r | |
1275 | )\r | |
1276 | {\r | |
1277 | IMAGE_PROPERTIES_RECORD *ImageRecord;\r | |
1278 | LIST_ENTRY *CodeSegmentListHead;\r | |
1279 | IMAGE_PROPERTIES_RECORD_CODE_SECTION *ImageRecordCodeSection;\r | |
1280 | \r | |
1281 | DEBUG ((DEBUG_VERBOSE, "SMM RemoveImageRecord - 0x%x\n", DriverEntry));\r | |
1282 | DEBUG ((DEBUG_VERBOSE, "SMM RemoveImageRecord - 0x%016lx - 0x%016lx\n", DriverEntry->ImageBuffer, DriverEntry->NumberOfPage));\r | |
1283 | \r | |
f1afa0a9 | 1284 | ImageRecord = FindImageRecord (DriverEntry->ImageBuffer, EfiPagesToSize(DriverEntry->NumberOfPage));\r |
285a682c JY |
1285 | if (ImageRecord == NULL) {\r |
1286 | DEBUG ((DEBUG_ERROR, "SMM !!!!!!!! ImageRecord not found !!!!!!!!\n"));\r | |
1287 | return ;\r | |
1288 | }\r | |
1289 | \r | |
1290 | CodeSegmentListHead = &ImageRecord->CodeSegmentList;\r | |
1291 | while (!IsListEmpty (CodeSegmentListHead)) {\r | |
1292 | ImageRecordCodeSection = CR (\r | |
1293 | CodeSegmentListHead->ForwardLink,\r | |
1294 | IMAGE_PROPERTIES_RECORD_CODE_SECTION,\r | |
1295 | Link,\r | |
1296 | IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE\r | |
1297 | );\r | |
1298 | RemoveEntryList (&ImageRecordCodeSection->Link);\r | |
1299 | FreePool (ImageRecordCodeSection);\r | |
1300 | }\r | |
1301 | \r | |
1302 | RemoveEntryList (&ImageRecord->Link);\r | |
1303 | FreePool (ImageRecord);\r | |
1304 | mImagePropertiesPrivateData.ImageRecordCount--;\r | |
1305 | }\r | |
1306 | \r | |
1307 | /**\r | |
1308 | Publish MemoryAttributesTable to SMM configuration table.\r | |
1309 | **/\r | |
1310 | VOID\r | |
1311 | PublishMemoryAttributesTable (\r | |
1312 | VOID\r | |
1313 | )\r | |
1314 | {\r | |
1315 | UINTN MemoryMapSize;\r | |
1316 | EFI_MEMORY_DESCRIPTOR *MemoryMap;\r | |
1317 | UINTN MapKey;\r | |
1318 | UINTN DescriptorSize;\r | |
1319 | UINT32 DescriptorVersion;\r | |
1320 | UINTN Index;\r | |
1321 | EFI_STATUS Status;\r | |
1322 | UINTN RuntimeEntryCount;\r | |
1323 | EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable;\r | |
1324 | EFI_MEMORY_DESCRIPTOR *MemoryAttributesEntry;\r | |
1325 | UINTN MemoryAttributesTableSize;\r | |
1326 | \r | |
1327 | MemoryMapSize = 0;\r | |
1328 | MemoryMap = NULL;\r | |
1329 | Status = SmmCoreGetMemoryMapMemoryAttributesTable (\r | |
1330 | &MemoryMapSize,\r | |
1331 | MemoryMap,\r | |
1332 | &MapKey,\r | |
1333 | &DescriptorSize,\r | |
1334 | &DescriptorVersion\r | |
1335 | );\r | |
1336 | ASSERT (Status == EFI_BUFFER_TOO_SMALL);\r | |
1337 | \r | |
1338 | do {\r | |
1339 | DEBUG ((DEBUG_INFO, "MemoryMapSize - 0x%x\n", MemoryMapSize));\r | |
1340 | MemoryMap = AllocatePool (MemoryMapSize);\r | |
1341 | ASSERT (MemoryMap != NULL);\r | |
1342 | DEBUG ((DEBUG_INFO, "MemoryMap - 0x%x\n", MemoryMap));\r | |
1343 | \r | |
1344 | Status = SmmCoreGetMemoryMapMemoryAttributesTable (\r | |
1345 | &MemoryMapSize,\r | |
1346 | MemoryMap,\r | |
1347 | &MapKey,\r | |
1348 | &DescriptorSize,\r | |
1349 | &DescriptorVersion\r | |
1350 | );\r | |
1351 | if (EFI_ERROR (Status)) {\r | |
1352 | FreePool (MemoryMap);\r | |
1353 | }\r | |
1354 | } while (Status == EFI_BUFFER_TOO_SMALL);\r | |
1355 | \r | |
1356 | //\r | |
1357 | // Allocate MemoryAttributesTable\r | |
1358 | //\r | |
1359 | RuntimeEntryCount = MemoryMapSize/DescriptorSize;\r | |
1360 | MemoryAttributesTableSize = sizeof(EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE) + DescriptorSize * RuntimeEntryCount;\r | |
1361 | MemoryAttributesTable = AllocatePool (sizeof(EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE) + DescriptorSize * RuntimeEntryCount);\r | |
1362 | ASSERT (MemoryAttributesTable != NULL);\r | |
1363 | MemoryAttributesTable->Version = EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE_VERSION;\r | |
1364 | MemoryAttributesTable->NumberOfEntries = (UINT32)RuntimeEntryCount;\r | |
1365 | MemoryAttributesTable->DescriptorSize = (UINT32)DescriptorSize;\r | |
1366 | MemoryAttributesTable->Reserved = 0;\r | |
1367 | DEBUG ((DEBUG_INFO, "MemoryAttributesTable:\n"));\r | |
1368 | DEBUG ((DEBUG_INFO, " Version - 0x%08x\n", MemoryAttributesTable->Version));\r | |
1369 | DEBUG ((DEBUG_INFO, " NumberOfEntries - 0x%08x\n", MemoryAttributesTable->NumberOfEntries));\r | |
1370 | DEBUG ((DEBUG_INFO, " DescriptorSize - 0x%08x\n", MemoryAttributesTable->DescriptorSize));\r | |
1371 | MemoryAttributesEntry = (EFI_MEMORY_DESCRIPTOR *)(MemoryAttributesTable + 1);\r | |
1372 | for (Index = 0; Index < MemoryMapSize/DescriptorSize; Index++) {\r | |
1373 | CopyMem (MemoryAttributesEntry, MemoryMap, DescriptorSize);\r | |
1374 | DEBUG ((DEBUG_INFO, "Entry (0x%x)\n", MemoryAttributesEntry));\r | |
1375 | DEBUG ((DEBUG_INFO, " Type - 0x%x\n", MemoryAttributesEntry->Type));\r | |
1376 | DEBUG ((DEBUG_INFO, " PhysicalStart - 0x%016lx\n", MemoryAttributesEntry->PhysicalStart));\r | |
1377 | DEBUG ((DEBUG_INFO, " VirtualStart - 0x%016lx\n", MemoryAttributesEntry->VirtualStart));\r | |
1378 | DEBUG ((DEBUG_INFO, " NumberOfPages - 0x%016lx\n", MemoryAttributesEntry->NumberOfPages));\r | |
1379 | DEBUG ((DEBUG_INFO, " Attribute - 0x%016lx\n", MemoryAttributesEntry->Attribute));\r | |
1380 | MemoryAttributesEntry = NEXT_MEMORY_DESCRIPTOR(MemoryAttributesEntry, DescriptorSize);\r | |
1381 | \r | |
1382 | MemoryMap = NEXT_MEMORY_DESCRIPTOR(MemoryMap, DescriptorSize);\r | |
1383 | }\r | |
1384 | \r | |
1385 | Status = gSmst->SmmInstallConfigurationTable (gSmst, &gEdkiiPiSmmMemoryAttributesTableGuid, MemoryAttributesTable, MemoryAttributesTableSize);\r | |
1386 | ASSERT_EFI_ERROR (Status);\r | |
1387 | }\r | |
1388 | \r | |
1389 | /**\r | |
1390 | This function returns if image is inside SMRAM.\r | |
1391 | \r | |
1392 | @param[in] LoadedImage LoadedImage protocol instance for an image.\r | |
1393 | \r | |
1394 | @retval TRUE the image is inside SMRAM.\r | |
1395 | @retval FALSE the image is outside SMRAM.\r | |
1396 | **/\r | |
1397 | BOOLEAN\r | |
1398 | IsImageInsideSmram (\r | |
1399 | IN EFI_LOADED_IMAGE_PROTOCOL *LoadedImage\r | |
1400 | )\r | |
1401 | {\r | |
1402 | UINTN Index;\r | |
1403 | \r | |
1404 | for (Index = 0; Index < mFullSmramRangeCount; Index++) {\r | |
1405 | if ((mFullSmramRanges[Index].PhysicalStart <= (UINTN)LoadedImage->ImageBase)&&\r | |
1406 | (mFullSmramRanges[Index].PhysicalStart + mFullSmramRanges[Index].PhysicalSize >= (UINTN)LoadedImage->ImageBase + LoadedImage->ImageSize)) {\r | |
1407 | return TRUE;\r | |
1408 | }\r | |
1409 | }\r | |
1410 | \r | |
1411 | return FALSE;\r | |
1412 | }\r | |
1413 | \r | |
1414 | /**\r | |
1415 | This function installs all SMM image record information.\r | |
1416 | **/\r | |
1417 | VOID\r | |
1418 | SmmInstallImageRecord (\r | |
1419 | VOID\r | |
1420 | )\r | |
1421 | {\r | |
1422 | EFI_STATUS Status;\r | |
1423 | UINTN NoHandles;\r | |
1424 | EFI_HANDLE *HandleBuffer;\r | |
1425 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
1426 | UINTN Index;\r | |
1427 | EFI_SMM_DRIVER_ENTRY DriverEntry;\r | |
1428 | \r | |
1429 | Status = SmmLocateHandleBuffer (\r | |
1430 | ByProtocol,\r | |
1431 | &gEfiLoadedImageProtocolGuid,\r | |
1432 | NULL,\r | |
1433 | &NoHandles,\r | |
1434 | &HandleBuffer\r | |
1435 | );\r | |
1436 | if (EFI_ERROR (Status)) {\r | |
1437 | return ;\r | |
1438 | }\r | |
1439 | \r | |
1440 | for (Index = 0; Index < NoHandles; Index++) {\r | |
1441 | Status = gSmst->SmmHandleProtocol (\r | |
1442 | HandleBuffer[Index],\r | |
1443 | &gEfiLoadedImageProtocolGuid,\r | |
1444 | (VOID **)&LoadedImage\r | |
1445 | );\r | |
1446 | if (EFI_ERROR (Status)) {\r | |
1447 | continue;\r | |
1448 | }\r | |
1449 | DEBUG ((DEBUG_VERBOSE, "LoadedImage - 0x%x 0x%x ", LoadedImage->ImageBase, LoadedImage->ImageSize));\r | |
1450 | {\r | |
1451 | VOID *PdbPointer;\r | |
1452 | PdbPointer = PeCoffLoaderGetPdbPointer (LoadedImage->ImageBase);\r | |
1453 | if (PdbPointer != NULL) {\r | |
1454 | DEBUG ((DEBUG_VERBOSE, "(%a) ", PdbPointer));\r | |
1455 | }\r | |
1456 | }\r | |
1457 | DEBUG ((DEBUG_VERBOSE, "\n"));\r | |
1458 | ZeroMem (&DriverEntry, sizeof(DriverEntry));\r | |
1459 | DriverEntry.ImageBuffer = (UINTN)LoadedImage->ImageBase;\r | |
1460 | DriverEntry.NumberOfPage = EFI_SIZE_TO_PAGES((UINTN)LoadedImage->ImageSize);\r | |
1461 | SmmInsertImageRecord (&DriverEntry);\r | |
1462 | }\r | |
1463 | \r | |
1464 | FreePool (HandleBuffer);\r | |
1465 | }\r | |
1466 | \r | |
1467 | /**\r | |
1468 | Install MemoryAttributesTable.\r | |
1469 | \r | |
1470 | @param[in] Protocol Points to the protocol's unique identifier.\r | |
1471 | @param[in] Interface Points to the interface instance.\r | |
1472 | @param[in] Handle The handle on which the interface was installed.\r | |
1473 | \r | |
1474 | @retval EFI_SUCCESS Notification runs successfully.\r | |
1475 | **/\r | |
1476 | EFI_STATUS\r | |
1477 | EFIAPI\r | |
1478 | SmmInstallMemoryAttributesTable (\r | |
1479 | IN CONST EFI_GUID *Protocol,\r | |
1480 | IN VOID *Interface,\r | |
1481 | IN EFI_HANDLE Handle\r | |
1482 | )\r | |
1483 | {\r | |
1484 | SmmInstallImageRecord ();\r | |
1485 | \r | |
1486 | DEBUG ((DEBUG_INFO, "SMM MemoryProtectionAttribute - 0x%016lx\n", mMemoryProtectionAttribute));\r | |
1487 | if ((mMemoryProtectionAttribute & EFI_MEMORY_ATTRIBUTES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA) == 0) {\r | |
1488 | return EFI_SUCCESS;\r | |
1489 | }\r | |
1490 | \r | |
1491 | DEBUG ((DEBUG_VERBOSE, "SMM Total Image Count - 0x%x\n", mImagePropertiesPrivateData.ImageRecordCount));\r | |
1492 | DEBUG ((DEBUG_VERBOSE, "SMM Dump ImageRecord:\n"));\r | |
1493 | DumpImageRecord ();\r | |
1494 | \r | |
1495 | PublishMemoryAttributesTable ();\r | |
1496 | \r | |
1497 | return EFI_SUCCESS;\r | |
1498 | }\r | |
1499 | \r | |
1500 | /**\r | |
1501 | Initialize MemoryAttributesTable support.\r | |
1502 | **/\r | |
1503 | VOID\r | |
1504 | EFIAPI\r | |
1505 | SmmCoreInitializeMemoryAttributesTable (\r | |
1506 | VOID\r | |
1507 | )\r | |
1508 | {\r | |
1509 | EFI_STATUS Status;\r | |
1510 | VOID *Registration;\r | |
1511 | \r | |
1512 | Status = gSmst->SmmRegisterProtocolNotify (\r | |
1513 | &gEfiSmmEndOfDxeProtocolGuid,\r | |
1514 | SmmInstallMemoryAttributesTable,\r | |
1515 | &Registration\r | |
1516 | );\r | |
1517 | ASSERT_EFI_ERROR (Status);\r | |
1518 | \r | |
1519 | return ;\r | |
1520 | }\r |