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0ac72713 | 1 | /** @file\r |
d1102dba | 2 | Support routines for memory allocation routines based\r |
e2735692 SZ |
3 | on DxeCore Memory Allocation services for DxeCore,\r |
4 | with memory profile support.\r | |
0ac72713 | 5 | \r |
d1102dba | 6 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
0ac72713 | 8 | \r |
9 | **/\r | |
10 | \r | |
11 | \r | |
12 | #include <PiDxe.h>\r | |
13 | \r | |
f6998888 | 14 | \r |
0ac72713 | 15 | #include <Library/MemoryAllocationLib.h>\r |
16 | #include <Library/BaseMemoryLib.h>\r | |
17 | #include <Library/DebugLib.h>\r | |
0ac72713 | 18 | #include "DxeCoreMemoryAllocationServices.h"\r |
19 | \r | |
e2735692 SZ |
20 | #include <Library/MemoryProfileLib.h>\r |
21 | \r | |
0ac72713 | 22 | /**\r |
23 | Allocates one or more 4KB pages of a certain memory type.\r | |
24 | \r | |
25 | Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated\r | |
26 | buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.\r | |
27 | If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
28 | \r | |
29 | @param MemoryType The type of memory to allocate.\r | |
30 | @param Pages The number of 4 KB pages to allocate.\r | |
31 | \r | |
32 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
33 | \r | |
34 | **/\r | |
35 | VOID *\r | |
36 | InternalAllocatePages (\r | |
d1102dba | 37 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 38 | IN UINTN Pages\r |
39 | )\r | |
40 | {\r | |
41 | EFI_STATUS Status;\r | |
d1102dba | 42 | EFI_PHYSICAL_ADDRESS Memory;\r |
0ac72713 | 43 | \r |
44 | if (Pages == 0) {\r | |
45 | return NULL;\r | |
46 | }\r | |
47 | \r | |
48 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
49 | if (EFI_ERROR (Status)) {\r | |
50 | return NULL;\r | |
51 | }\r | |
52 | return (VOID *) (UINTN) Memory;\r | |
53 | }\r | |
54 | \r | |
55 | /**\r | |
56 | Allocates one or more 4KB pages of type EfiBootServicesData.\r | |
57 | \r | |
58 | Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r | |
59 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
60 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
61 | returned.\r | |
62 | \r | |
63 | @param Pages The number of 4 KB pages to allocate.\r | |
64 | \r | |
65 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
66 | \r | |
67 | **/\r | |
68 | VOID *\r | |
69 | EFIAPI\r | |
70 | AllocatePages (\r | |
71 | IN UINTN Pages\r | |
72 | )\r | |
73 | {\r | |
e2735692 SZ |
74 | VOID *Buffer;\r |
75 | \r | |
76 | Buffer = InternalAllocatePages (EfiBootServicesData, Pages);\r | |
77 | if (Buffer != NULL) {\r | |
78 | MemoryProfileLibRecord (\r | |
79 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
80 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_PAGES,\r | |
81 | EfiBootServicesData,\r | |
82 | Buffer,\r | |
83 | EFI_PAGES_TO_SIZE (Pages),\r | |
84 | NULL\r | |
85 | );\r | |
86 | }\r | |
87 | return Buffer;\r | |
0ac72713 | 88 | }\r |
89 | \r | |
90 | /**\r | |
91 | Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r | |
92 | \r | |
93 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
94 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
95 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
96 | returned.\r | |
97 | \r | |
98 | @param Pages The number of 4 KB pages to allocate.\r | |
99 | \r | |
100 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
101 | \r | |
102 | **/\r | |
103 | VOID *\r | |
104 | EFIAPI\r | |
105 | AllocateRuntimePages (\r | |
106 | IN UINTN Pages\r | |
107 | )\r | |
108 | {\r | |
e2735692 SZ |
109 | VOID *Buffer;\r |
110 | \r | |
111 | Buffer = InternalAllocatePages (EfiRuntimeServicesData, Pages);\r | |
112 | if (Buffer != NULL) {\r | |
113 | MemoryProfileLibRecord (\r | |
114 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
115 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_PAGES,\r | |
116 | EfiRuntimeServicesData,\r | |
117 | Buffer,\r | |
118 | EFI_PAGES_TO_SIZE (Pages),\r | |
119 | NULL\r | |
120 | );\r | |
121 | }\r | |
122 | return Buffer;\r | |
0ac72713 | 123 | }\r |
124 | \r | |
125 | /**\r | |
126 | Allocates one or more 4KB pages of type EfiReservedMemoryType.\r | |
127 | \r | |
128 | Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the\r | |
129 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
130 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
131 | returned.\r | |
132 | \r | |
133 | @param Pages The number of 4 KB pages to allocate.\r | |
134 | \r | |
135 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
136 | \r | |
137 | **/\r | |
138 | VOID *\r | |
139 | EFIAPI\r | |
140 | AllocateReservedPages (\r | |
141 | IN UINTN Pages\r | |
142 | )\r | |
143 | {\r | |
e2735692 SZ |
144 | VOID *Buffer;\r |
145 | \r | |
146 | Buffer = InternalAllocatePages (EfiReservedMemoryType, Pages);\r | |
147 | if (Buffer != NULL) {\r | |
148 | MemoryProfileLibRecord (\r | |
149 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
150 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_PAGES,\r | |
151 | EfiReservedMemoryType,\r | |
152 | Buffer,\r | |
153 | EFI_PAGES_TO_SIZE (Pages),\r | |
154 | NULL\r | |
155 | );\r | |
156 | }\r | |
157 | return Buffer;\r | |
0ac72713 | 158 | }\r |
159 | \r | |
160 | /**\r | |
161 | Frees one or more 4KB pages that were previously allocated with one of the page allocation\r | |
162 | functions in the Memory Allocation Library.\r | |
163 | \r | |
164 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
165 | must have been allocated on a previous call to the page allocation services of the Memory\r | |
aa2f249e | 166 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 167 | perform no actions.\r |
d1102dba | 168 | \r |
0ac72713 | 169 | If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r |
170 | then ASSERT().\r | |
171 | If Pages is zero, then ASSERT().\r | |
d1102dba | 172 | \r |
0ac72713 | 173 | @param Buffer Pointer to the buffer of pages to free.\r |
174 | @param Pages The number of 4 KB pages to free.\r | |
175 | \r | |
176 | **/\r | |
177 | VOID\r | |
178 | EFIAPI\r | |
179 | FreePages (\r | |
180 | IN VOID *Buffer,\r | |
181 | IN UINTN Pages\r | |
182 | )\r | |
183 | {\r | |
184 | EFI_STATUS Status;\r | |
185 | \r | |
186 | ASSERT (Pages != 0);\r | |
187 | Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r | |
188 | ASSERT_EFI_ERROR (Status);\r | |
189 | }\r | |
190 | \r | |
191 | /**\r | |
192 | Allocates one or more 4KB pages of a certain memory type at a specified alignment.\r | |
193 | \r | |
194 | Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment\r | |
195 | specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.\r | |
196 | If there is not enough memory at the specified alignment remaining to satisfy the request, then\r | |
197 | NULL is returned.\r | |
198 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
91403ce9 | 199 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 200 | \r |
201 | @param MemoryType The type of memory to allocate.\r | |
202 | @param Pages The number of 4 KB pages to allocate.\r | |
203 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
204 | If Alignment is zero, then byte alignment is used.\r | |
205 | \r | |
206 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
207 | \r | |
208 | **/\r | |
209 | VOID *\r | |
210 | InternalAllocateAlignedPages (\r | |
d1102dba | 211 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 212 | IN UINTN Pages,\r |
213 | IN UINTN Alignment\r | |
214 | )\r | |
215 | {\r | |
216 | EFI_STATUS Status;\r | |
217 | EFI_PHYSICAL_ADDRESS Memory;\r | |
218 | UINTN AlignedMemory;\r | |
219 | UINTN AlignmentMask;\r | |
220 | UINTN UnalignedPages;\r | |
221 | UINTN RealPages;\r | |
222 | \r | |
223 | //\r | |
224 | // Alignment must be a power of two or zero.\r | |
225 | //\r | |
226 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
d1102dba | 227 | \r |
0ac72713 | 228 | if (Pages == 0) {\r |
229 | return NULL;\r | |
230 | }\r | |
231 | if (Alignment > EFI_PAGE_SIZE) {\r | |
232 | //\r | |
e50a226b | 233 | // Calculate the total number of pages since alignment is larger than page size.\r |
0ac72713 | 234 | //\r |
235 | AlignmentMask = Alignment - 1;\r | |
236 | RealPages = Pages + EFI_SIZE_TO_PAGES (Alignment);\r | |
237 | //\r | |
238 | // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r | |
239 | //\r | |
240 | ASSERT (RealPages > Pages);\r | |
d1102dba | 241 | \r |
0ac72713 | 242 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, RealPages, &Memory);\r |
243 | if (EFI_ERROR (Status)) {\r | |
244 | return NULL;\r | |
245 | }\r | |
246 | AlignedMemory = ((UINTN) Memory + AlignmentMask) & ~AlignmentMask;\r | |
247 | UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN) Memory);\r | |
248 | if (UnalignedPages > 0) {\r | |
249 | //\r | |
250 | // Free first unaligned page(s).\r | |
251 | //\r | |
252 | Status = CoreFreePages (Memory, UnalignedPages);\r | |
253 | ASSERT_EFI_ERROR (Status);\r | |
254 | }\r | |
16f69227 | 255 | Memory = AlignedMemory + EFI_PAGES_TO_SIZE (Pages);\r |
0ac72713 | 256 | UnalignedPages = RealPages - Pages - UnalignedPages;\r |
257 | if (UnalignedPages > 0) {\r | |
258 | //\r | |
259 | // Free last unaligned page(s).\r | |
260 | //\r | |
261 | Status = CoreFreePages (Memory, UnalignedPages);\r | |
262 | ASSERT_EFI_ERROR (Status);\r | |
263 | }\r | |
264 | } else {\r | |
265 | //\r | |
266 | // Do not over-allocate pages in this case.\r | |
267 | //\r | |
268 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | return NULL;\r | |
271 | }\r | |
272 | AlignedMemory = (UINTN) Memory;\r | |
273 | }\r | |
274 | return (VOID *) AlignedMemory;\r | |
275 | }\r | |
276 | \r | |
277 | /**\r | |
278 | Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r | |
279 | \r | |
280 | Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r | |
281 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
282 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
283 | request, then NULL is returned.\r | |
d1102dba | 284 | \r |
0ac72713 | 285 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 286 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 287 | \r |
288 | @param Pages The number of 4 KB pages to allocate.\r | |
289 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
290 | If Alignment is zero, then byte alignment is used.\r | |
291 | \r | |
292 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
293 | \r | |
294 | **/\r | |
295 | VOID *\r | |
296 | EFIAPI\r | |
297 | AllocateAlignedPages (\r | |
298 | IN UINTN Pages,\r | |
299 | IN UINTN Alignment\r | |
300 | )\r | |
301 | {\r | |
e2735692 SZ |
302 | VOID *Buffer;\r |
303 | \r | |
304 | Buffer = InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);\r | |
305 | if (Buffer != NULL) {\r | |
306 | MemoryProfileLibRecord (\r | |
307 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
308 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_PAGES,\r | |
309 | EfiBootServicesData,\r | |
310 | Buffer,\r | |
311 | EFI_PAGES_TO_SIZE (Pages),\r | |
312 | NULL\r | |
313 | );\r | |
314 | }\r | |
315 | return Buffer;\r | |
0ac72713 | 316 | }\r |
317 | \r | |
318 | /**\r | |
319 | Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r | |
320 | \r | |
321 | Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r | |
322 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
323 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
324 | request, then NULL is returned.\r | |
d1102dba | 325 | \r |
0ac72713 | 326 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 327 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 328 | \r |
329 | @param Pages The number of 4 KB pages to allocate.\r | |
330 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
331 | If Alignment is zero, then byte alignment is used.\r | |
332 | \r | |
333 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
334 | \r | |
335 | **/\r | |
336 | VOID *\r | |
337 | EFIAPI\r | |
338 | AllocateAlignedRuntimePages (\r | |
339 | IN UINTN Pages,\r | |
340 | IN UINTN Alignment\r | |
341 | )\r | |
342 | {\r | |
e2735692 SZ |
343 | VOID *Buffer;\r |
344 | \r | |
345 | Buffer = InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);\r | |
346 | if (Buffer != NULL) {\r | |
347 | MemoryProfileLibRecord (\r | |
348 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
349 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RUNTIME_PAGES,\r | |
350 | EfiRuntimeServicesData,\r | |
351 | Buffer,\r | |
352 | EFI_PAGES_TO_SIZE (Pages),\r | |
353 | NULL\r | |
354 | );\r | |
355 | }\r | |
356 | return Buffer;\r | |
0ac72713 | 357 | }\r |
358 | \r | |
359 | /**\r | |
360 | Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r | |
361 | \r | |
362 | Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r | |
363 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
364 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
365 | request, then NULL is returned.\r | |
d1102dba | 366 | \r |
0ac72713 | 367 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 368 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 369 | \r |
370 | @param Pages The number of 4 KB pages to allocate.\r | |
371 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
372 | If Alignment is zero, then byte alignment is used.\r | |
373 | \r | |
374 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
375 | \r | |
376 | **/\r | |
377 | VOID *\r | |
378 | EFIAPI\r | |
379 | AllocateAlignedReservedPages (\r | |
380 | IN UINTN Pages,\r | |
381 | IN UINTN Alignment\r | |
382 | )\r | |
383 | {\r | |
e2735692 SZ |
384 | VOID *Buffer;\r |
385 | \r | |
386 | Buffer = InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);\r | |
387 | if (Buffer != NULL) {\r | |
388 | MemoryProfileLibRecord (\r | |
389 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
390 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RESERVED_PAGES,\r | |
391 | EfiReservedMemoryType,\r | |
392 | Buffer,\r | |
393 | EFI_PAGES_TO_SIZE (Pages),\r | |
394 | NULL\r | |
395 | );\r | |
396 | }\r | |
397 | return Buffer;\r | |
0ac72713 | 398 | }\r |
399 | \r | |
400 | /**\r | |
401 | Frees one or more 4KB pages that were previously allocated with one of the aligned page\r | |
402 | allocation functions in the Memory Allocation Library.\r | |
403 | \r | |
404 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
405 | must have been allocated on a previous call to the aligned page allocation services of the Memory\r | |
d1102dba | 406 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 407 | perform no actions.\r |
d1102dba | 408 | \r |
0ac72713 | 409 | If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r |
410 | Library, then ASSERT().\r | |
411 | If Pages is zero, then ASSERT().\r | |
d1102dba | 412 | \r |
0ac72713 | 413 | @param Buffer Pointer to the buffer of pages to free.\r |
414 | @param Pages The number of 4 KB pages to free.\r | |
415 | \r | |
416 | **/\r | |
417 | VOID\r | |
418 | EFIAPI\r | |
419 | FreeAlignedPages (\r | |
420 | IN VOID *Buffer,\r | |
421 | IN UINTN Pages\r | |
422 | )\r | |
423 | {\r | |
424 | EFI_STATUS Status;\r | |
425 | \r | |
426 | ASSERT (Pages != 0);\r | |
427 | Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r | |
428 | ASSERT_EFI_ERROR (Status);\r | |
429 | }\r | |
430 | \r | |
431 | /**\r | |
432 | Allocates a buffer of a certain pool type.\r | |
433 | \r | |
434 | Allocates the number bytes specified by AllocationSize of a certain pool type and returns a\r | |
435 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
436 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
437 | \r | |
438 | @param MemoryType The type of memory to allocate.\r | |
439 | @param AllocationSize The number of bytes to allocate.\r | |
440 | \r | |
441 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
442 | \r | |
443 | **/\r | |
444 | VOID *\r | |
445 | InternalAllocatePool (\r | |
d1102dba | 446 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 447 | IN UINTN AllocationSize\r |
448 | )\r | |
449 | {\r | |
450 | EFI_STATUS Status;\r | |
451 | VOID *Memory;\r | |
452 | \r | |
4e1005ec ED |
453 | Memory = NULL;\r |
454 | \r | |
0ac72713 | 455 | Status = CoreAllocatePool (MemoryType, AllocationSize, &Memory);\r |
456 | if (EFI_ERROR (Status)) {\r | |
457 | Memory = NULL;\r | |
458 | }\r | |
459 | return Memory;\r | |
460 | }\r | |
461 | \r | |
462 | /**\r | |
463 | Allocates a buffer of type EfiBootServicesData.\r | |
464 | \r | |
465 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r | |
466 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
467 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
468 | \r | |
469 | @param AllocationSize The number of bytes to allocate.\r | |
470 | \r | |
471 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
472 | \r | |
473 | **/\r | |
474 | VOID *\r | |
475 | EFIAPI\r | |
476 | AllocatePool (\r | |
477 | IN UINTN AllocationSize\r | |
478 | )\r | |
479 | {\r | |
e2735692 SZ |
480 | VOID *Buffer;\r |
481 | \r | |
482 | Buffer = InternalAllocatePool (EfiBootServicesData, AllocationSize);\r | |
483 | if (Buffer != NULL) {\r | |
484 | MemoryProfileLibRecord (\r | |
485 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
486 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_POOL,\r | |
487 | EfiBootServicesData,\r | |
488 | Buffer,\r | |
489 | AllocationSize,\r | |
490 | NULL\r | |
491 | );\r | |
492 | }\r | |
493 | return Buffer;\r | |
0ac72713 | 494 | }\r |
495 | \r | |
496 | /**\r | |
497 | Allocates a buffer of type EfiRuntimeServicesData.\r | |
498 | \r | |
499 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r | |
500 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
501 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
502 | \r | |
503 | @param AllocationSize The number of bytes to allocate.\r | |
504 | \r | |
505 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
506 | \r | |
507 | **/\r | |
508 | VOID *\r | |
509 | EFIAPI\r | |
510 | AllocateRuntimePool (\r | |
511 | IN UINTN AllocationSize\r | |
512 | )\r | |
513 | {\r | |
e2735692 SZ |
514 | VOID *Buffer;\r |
515 | \r | |
516 | Buffer = InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r | |
517 | if (Buffer != NULL) {\r | |
518 | MemoryProfileLibRecord (\r | |
519 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
520 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_POOL,\r | |
521 | EfiRuntimeServicesData,\r | |
522 | Buffer,\r | |
523 | AllocationSize,\r | |
524 | NULL\r | |
525 | );\r | |
526 | }\r | |
527 | return Buffer;\r | |
0ac72713 | 528 | }\r |
529 | \r | |
530 | /**\r | |
31771abd | 531 | Allocates a buffer of type EfiReservedMemoryType.\r |
0ac72713 | 532 | \r |
31771abd | 533 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns\r |
0ac72713 | 534 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r |
535 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
536 | \r | |
537 | @param AllocationSize The number of bytes to allocate.\r | |
538 | \r | |
539 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
540 | \r | |
541 | **/\r | |
542 | VOID *\r | |
543 | EFIAPI\r | |
544 | AllocateReservedPool (\r | |
545 | IN UINTN AllocationSize\r | |
546 | )\r | |
547 | {\r | |
e2735692 SZ |
548 | VOID *Buffer;\r |
549 | \r | |
550 | Buffer = InternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r | |
551 | if (Buffer != NULL) {\r | |
552 | MemoryProfileLibRecord (\r | |
553 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
554 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_POOL,\r | |
555 | EfiReservedMemoryType,\r | |
556 | Buffer,\r | |
557 | AllocationSize,\r | |
558 | NULL\r | |
559 | );\r | |
560 | }\r | |
561 | return Buffer;\r | |
0ac72713 | 562 | }\r |
563 | \r | |
564 | /**\r | |
446b94b0 | 565 | Allocates and zeros a buffer of a certain pool type.\r |
0ac72713 | 566 | \r |
446b94b0 | 567 | Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer\r |
0ac72713 | 568 | with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid\r |
569 | buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,\r | |
570 | then NULL is returned.\r | |
571 | \r | |
572 | @param PoolType The type of memory to allocate.\r | |
573 | @param AllocationSize The number of bytes to allocate and zero.\r | |
574 | \r | |
575 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
576 | \r | |
577 | **/\r | |
578 | VOID *\r | |
579 | InternalAllocateZeroPool (\r | |
d1102dba | 580 | IN EFI_MEMORY_TYPE PoolType,\r |
0ac72713 | 581 | IN UINTN AllocationSize\r |
d1102dba | 582 | )\r |
0ac72713 | 583 | {\r |
584 | VOID *Memory;\r | |
585 | \r | |
586 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
587 | if (Memory != NULL) {\r | |
588 | Memory = ZeroMem (Memory, AllocationSize);\r | |
589 | }\r | |
590 | return Memory;\r | |
591 | }\r | |
592 | \r | |
593 | /**\r | |
594 | Allocates and zeros a buffer of type EfiBootServicesData.\r | |
595 | \r | |
596 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r | |
597 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
598 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
599 | request, then NULL is returned.\r | |
600 | \r | |
601 | @param AllocationSize The number of bytes to allocate and zero.\r | |
602 | \r | |
603 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
604 | \r | |
605 | **/\r | |
606 | VOID *\r | |
607 | EFIAPI\r | |
608 | AllocateZeroPool (\r | |
609 | IN UINTN AllocationSize\r | |
610 | )\r | |
611 | {\r | |
e2735692 SZ |
612 | VOID *Buffer;\r |
613 | \r | |
614 | Buffer = InternalAllocateZeroPool (EfiBootServicesData, AllocationSize);\r | |
615 | if (Buffer != NULL) {\r | |
616 | MemoryProfileLibRecord (\r | |
617 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
618 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ZERO_POOL,\r | |
619 | EfiBootServicesData,\r | |
620 | Buffer,\r | |
621 | AllocationSize,\r | |
622 | NULL\r | |
623 | );\r | |
624 | }\r | |
625 | return Buffer;\r | |
0ac72713 | 626 | }\r |
627 | \r | |
628 | /**\r | |
629 | Allocates and zeros a buffer of type EfiRuntimeServicesData.\r | |
630 | \r | |
631 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r | |
632 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
633 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
634 | request, then NULL is returned.\r | |
635 | \r | |
636 | @param AllocationSize The number of bytes to allocate and zero.\r | |
637 | \r | |
638 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
639 | \r | |
640 | **/\r | |
641 | VOID *\r | |
642 | EFIAPI\r | |
643 | AllocateRuntimeZeroPool (\r | |
644 | IN UINTN AllocationSize\r | |
645 | )\r | |
646 | {\r | |
e2735692 SZ |
647 | VOID *Buffer;\r |
648 | \r | |
649 | Buffer = InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r | |
650 | if (Buffer != NULL) {\r | |
651 | MemoryProfileLibRecord (\r | |
652 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
653 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_ZERO_POOL,\r | |
654 | EfiRuntimeServicesData,\r | |
655 | Buffer,\r | |
656 | AllocationSize,\r | |
657 | NULL\r | |
658 | );\r | |
659 | }\r | |
660 | return Buffer;\r | |
0ac72713 | 661 | }\r |
662 | \r | |
663 | /**\r | |
664 | Allocates and zeros a buffer of type EfiReservedMemoryType.\r | |
665 | \r | |
666 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r | |
667 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
668 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
669 | request, then NULL is returned.\r | |
670 | \r | |
671 | @param AllocationSize The number of bytes to allocate and zero.\r | |
672 | \r | |
673 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
674 | \r | |
675 | **/\r | |
676 | VOID *\r | |
677 | EFIAPI\r | |
678 | AllocateReservedZeroPool (\r | |
679 | IN UINTN AllocationSize\r | |
680 | )\r | |
681 | {\r | |
e2735692 SZ |
682 | VOID *Buffer;\r |
683 | \r | |
684 | Buffer = InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r | |
685 | if (Buffer != NULL) {\r | |
686 | MemoryProfileLibRecord (\r | |
687 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
688 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_ZERO_POOL,\r | |
689 | EfiReservedMemoryType,\r | |
690 | Buffer,\r | |
691 | AllocationSize,\r | |
692 | NULL\r | |
693 | );\r | |
694 | }\r | |
695 | return Buffer;\r | |
0ac72713 | 696 | }\r |
697 | \r | |
698 | /**\r | |
446b94b0 | 699 | Copies a buffer to an allocated buffer of a certain pool type.\r |
0ac72713 | 700 | \r |
446b94b0 | 701 | Allocates the number bytes specified by AllocationSize of a certain pool type, copies\r |
0ac72713 | 702 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r |
703 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
704 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
705 | If Buffer is NULL, then ASSERT().\r | |
d1102dba | 706 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 707 | \r |
708 | @param PoolType The type of pool to allocate.\r | |
709 | @param AllocationSize The number of bytes to allocate and zero.\r | |
710 | @param Buffer The buffer to copy to the allocated buffer.\r | |
711 | \r | |
712 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
713 | \r | |
714 | **/\r | |
715 | VOID *\r | |
716 | InternalAllocateCopyPool (\r | |
d1102dba | 717 | IN EFI_MEMORY_TYPE PoolType,\r |
0ac72713 | 718 | IN UINTN AllocationSize,\r |
719 | IN CONST VOID *Buffer\r | |
d1102dba | 720 | )\r |
0ac72713 | 721 | {\r |
722 | VOID *Memory;\r | |
723 | \r | |
724 | ASSERT (Buffer != NULL);\r | |
725 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
726 | \r | |
727 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
728 | if (Memory != NULL) {\r | |
729 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
730 | }\r | |
731 | return Memory;\r | |
d1102dba | 732 | }\r |
0ac72713 | 733 | \r |
734 | /**\r | |
735 | Copies a buffer to an allocated buffer of type EfiBootServicesData.\r | |
736 | \r | |
737 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r | |
738 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
739 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
740 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 741 | \r |
0ac72713 | 742 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 743 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 744 | \r |
745 | @param AllocationSize The number of bytes to allocate and zero.\r | |
746 | @param Buffer The buffer to copy to the allocated buffer.\r | |
747 | \r | |
748 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
749 | \r | |
750 | **/\r | |
751 | VOID *\r | |
752 | EFIAPI\r | |
753 | AllocateCopyPool (\r | |
754 | IN UINTN AllocationSize,\r | |
755 | IN CONST VOID *Buffer\r | |
756 | )\r | |
757 | {\r | |
e2735692 SZ |
758 | VOID *NewBuffer;\r |
759 | \r | |
760 | NewBuffer = InternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);\r | |
761 | if (NewBuffer != NULL) {\r | |
762 | MemoryProfileLibRecord (\r | |
763 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
764 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_COPY_POOL,\r | |
765 | EfiBootServicesData,\r | |
766 | NewBuffer,\r | |
767 | AllocationSize,\r | |
768 | NULL\r | |
769 | );\r | |
770 | }\r | |
771 | return NewBuffer;\r | |
0ac72713 | 772 | }\r |
773 | \r | |
774 | /**\r | |
775 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r | |
776 | \r | |
777 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r | |
778 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
779 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
780 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 781 | \r |
0ac72713 | 782 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 783 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 784 | \r |
785 | @param AllocationSize The number of bytes to allocate and zero.\r | |
786 | @param Buffer The buffer to copy to the allocated buffer.\r | |
787 | \r | |
788 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
789 | \r | |
790 | **/\r | |
791 | VOID *\r | |
792 | EFIAPI\r | |
793 | AllocateRuntimeCopyPool (\r | |
794 | IN UINTN AllocationSize,\r | |
795 | IN CONST VOID *Buffer\r | |
796 | )\r | |
797 | {\r | |
e2735692 SZ |
798 | VOID *NewBuffer;\r |
799 | \r | |
800 | NewBuffer = InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r | |
801 | if (NewBuffer != NULL) {\r | |
802 | MemoryProfileLibRecord (\r | |
803 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
804 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_COPY_POOL,\r | |
805 | EfiRuntimeServicesData,\r | |
806 | NewBuffer,\r | |
807 | AllocationSize,\r | |
808 | NULL\r | |
809 | );\r | |
810 | }\r | |
811 | return NewBuffer;\r | |
0ac72713 | 812 | }\r |
813 | \r | |
814 | /**\r | |
815 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r | |
816 | \r | |
817 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r | |
818 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
819 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
820 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 821 | \r |
0ac72713 | 822 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 823 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 824 | \r |
825 | @param AllocationSize The number of bytes to allocate and zero.\r | |
826 | @param Buffer The buffer to copy to the allocated buffer.\r | |
827 | \r | |
828 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
829 | \r | |
830 | **/\r | |
831 | VOID *\r | |
832 | EFIAPI\r | |
833 | AllocateReservedCopyPool (\r | |
834 | IN UINTN AllocationSize,\r | |
835 | IN CONST VOID *Buffer\r | |
836 | )\r | |
837 | {\r | |
e2735692 SZ |
838 | VOID *NewBuffer;\r |
839 | \r | |
840 | NewBuffer = InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r | |
841 | if (NewBuffer != NULL) {\r | |
842 | MemoryProfileLibRecord (\r | |
843 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
844 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_COPY_POOL,\r | |
845 | EfiRuntimeServicesData,\r | |
846 | NewBuffer,\r | |
847 | AllocationSize,\r | |
848 | NULL\r | |
849 | );\r | |
850 | }\r | |
851 | return NewBuffer;\r | |
0ac72713 | 852 | }\r |
853 | \r | |
f6998888 | 854 | /**\r |
855 | Reallocates a buffer of a specified memory type.\r | |
856 | \r | |
857 | Allocates and zeros the number bytes specified by NewSize from memory of the type\r | |
d1102dba LG |
858 | specified by PoolType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
859 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
860 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
861 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 862 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 863 | \r |
56304569 | 864 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
865 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 866 | \r |
867 | @param PoolType The type of pool to allocate.\r | |
868 | @param OldSize The size, in bytes, of OldBuffer.\r | |
869 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 870 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 871 | parameter that may be NULL.\r |
872 | \r | |
873 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
874 | \r | |
875 | **/\r | |
876 | VOID *\r | |
877 | InternalReallocatePool (\r | |
d1102dba | 878 | IN EFI_MEMORY_TYPE PoolType,\r |
f6998888 | 879 | IN UINTN OldSize,\r |
880 | IN UINTN NewSize,\r | |
881 | IN VOID *OldBuffer OPTIONAL\r | |
882 | )\r | |
883 | {\r | |
884 | VOID *NewBuffer;\r | |
885 | \r | |
ae55f4eb | 886 | NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);\r |
f6998888 | 887 | if (NewBuffer != NULL && OldBuffer != NULL) {\r |
888 | CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));\r | |
889 | FreePool (OldBuffer);\r | |
890 | }\r | |
891 | return NewBuffer;\r | |
892 | }\r | |
893 | \r | |
894 | /**\r | |
895 | Reallocates a buffer of type EfiBootServicesData.\r | |
896 | \r | |
897 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
898 | EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
899 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
900 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
901 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 902 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 903 | \r |
56304569 | 904 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
905 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 906 | \r |
907 | @param OldSize The size, in bytes, of OldBuffer.\r | |
908 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 909 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 910 | parameter that may be NULL.\r |
911 | \r | |
912 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
913 | \r | |
914 | **/\r | |
915 | VOID *\r | |
916 | EFIAPI\r | |
917 | ReallocatePool (\r | |
918 | IN UINTN OldSize,\r | |
919 | IN UINTN NewSize,\r | |
920 | IN VOID *OldBuffer OPTIONAL\r | |
921 | )\r | |
922 | {\r | |
e2735692 SZ |
923 | VOID *Buffer;\r |
924 | \r | |
925 | Buffer = InternalReallocatePool (EfiBootServicesData, OldSize, NewSize, OldBuffer);\r | |
926 | if (Buffer != NULL) {\r | |
927 | MemoryProfileLibRecord (\r | |
928 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
929 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_POOL,\r | |
930 | EfiBootServicesData,\r | |
931 | Buffer,\r | |
932 | NewSize,\r | |
933 | NULL\r | |
934 | );\r | |
935 | }\r | |
936 | return Buffer;\r | |
f6998888 | 937 | }\r |
938 | \r | |
939 | /**\r | |
940 | Reallocates a buffer of type EfiRuntimeServicesData.\r | |
941 | \r | |
942 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
943 | EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
944 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
945 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
946 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 947 | enough memory remaining to satisfy the request, then NULL is returned.\r |
948 | \r | |
56304569 | 949 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
950 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 951 | \r |
952 | @param OldSize The size, in bytes, of OldBuffer.\r | |
953 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 954 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 955 | parameter that may be NULL.\r |
956 | \r | |
957 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
958 | \r | |
959 | **/\r | |
960 | VOID *\r | |
961 | EFIAPI\r | |
962 | ReallocateRuntimePool (\r | |
963 | IN UINTN OldSize,\r | |
964 | IN UINTN NewSize,\r | |
965 | IN VOID *OldBuffer OPTIONAL\r | |
966 | )\r | |
967 | {\r | |
e2735692 SZ |
968 | VOID *Buffer;\r |
969 | \r | |
970 | Buffer = InternalReallocatePool (EfiRuntimeServicesData, OldSize, NewSize, OldBuffer);\r | |
971 | if (Buffer != NULL) {\r | |
972 | MemoryProfileLibRecord (\r | |
973 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
974 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RUNTIME_POOL,\r | |
975 | EfiRuntimeServicesData,\r | |
976 | Buffer,\r | |
977 | NewSize,\r | |
978 | NULL\r | |
979 | );\r | |
980 | }\r | |
981 | return Buffer;\r | |
f6998888 | 982 | }\r |
983 | \r | |
984 | /**\r | |
985 | Reallocates a buffer of type EfiReservedMemoryType.\r | |
986 | \r | |
987 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
988 | EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
989 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
990 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
991 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 992 | enough memory remaining to satisfy the request, then NULL is returned.\r |
6a30c6d0 | 993 | \r |
56304569 | 994 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
995 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 996 | \r |
997 | @param OldSize The size, in bytes, of OldBuffer.\r | |
998 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 999 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 1000 | parameter that may be NULL.\r |
1001 | \r | |
1002 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
1003 | \r | |
1004 | **/\r | |
1005 | VOID *\r | |
1006 | EFIAPI\r | |
1007 | ReallocateReservedPool (\r | |
1008 | IN UINTN OldSize,\r | |
1009 | IN UINTN NewSize,\r | |
1010 | IN VOID *OldBuffer OPTIONAL\r | |
1011 | )\r | |
1012 | {\r | |
e2735692 SZ |
1013 | VOID *Buffer;\r |
1014 | \r | |
1015 | Buffer = InternalReallocatePool (EfiReservedMemoryType, OldSize, NewSize, OldBuffer);\r | |
1016 | if (Buffer != NULL) {\r | |
1017 | MemoryProfileLibRecord (\r | |
1018 | (PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS(0),\r | |
1019 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RESERVED_POOL,\r | |
1020 | EfiReservedMemoryType,\r | |
1021 | Buffer,\r | |
1022 | NewSize,\r | |
1023 | NULL\r | |
1024 | );\r | |
1025 | }\r | |
1026 | return Buffer;\r | |
f6998888 | 1027 | }\r |
1028 | \r | |
0ac72713 | 1029 | /**\r |
1030 | Frees a buffer that was previously allocated with one of the pool allocation functions in the\r | |
1031 | Memory Allocation Library.\r | |
1032 | \r | |
1033 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
aa2f249e | 1034 | pool allocation services of the Memory Allocation Library. If it is not possible to free pool\r |
446b94b0 | 1035 | resources, then this function will perform no actions.\r |
d1102dba | 1036 | \r |
0ac72713 | 1037 | If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r |
1038 | then ASSERT().\r | |
1039 | \r | |
1040 | @param Buffer Pointer to the buffer to free.\r | |
1041 | \r | |
1042 | **/\r | |
1043 | VOID\r | |
1044 | EFIAPI\r | |
1045 | FreePool (\r | |
1046 | IN VOID *Buffer\r | |
1047 | )\r | |
1048 | {\r | |
1049 | EFI_STATUS Status;\r | |
1050 | \r | |
1051 | Status = CoreFreePool (Buffer);\r | |
1052 | ASSERT_EFI_ERROR (Status);\r | |
1053 | }\r | |
1054 | \r |