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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 | |
0ac72713 | 11 | #include <PiDxe.h>\r |
12 | \r | |
13 | #include <Library/MemoryAllocationLib.h>\r | |
14 | #include <Library/BaseMemoryLib.h>\r | |
15 | #include <Library/DebugLib.h>\r | |
0ac72713 | 16 | #include "DxeCoreMemoryAllocationServices.h"\r |
17 | \r | |
e2735692 SZ |
18 | #include <Library/MemoryProfileLib.h>\r |
19 | \r | |
0ac72713 | 20 | /**\r |
21 | Allocates one or more 4KB pages of a certain memory type.\r | |
22 | \r | |
23 | Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated\r | |
24 | buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.\r | |
25 | If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
26 | \r | |
27 | @param MemoryType The type of memory to allocate.\r | |
28 | @param Pages The number of 4 KB pages to allocate.\r | |
29 | \r | |
30 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
31 | \r | |
32 | **/\r | |
33 | VOID *\r | |
34 | InternalAllocatePages (\r | |
d1102dba | 35 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 36 | IN UINTN Pages\r |
37 | )\r | |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
d1102dba | 40 | EFI_PHYSICAL_ADDRESS Memory;\r |
0ac72713 | 41 | \r |
42 | if (Pages == 0) {\r | |
43 | return NULL;\r | |
44 | }\r | |
45 | \r | |
46 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
47 | if (EFI_ERROR (Status)) {\r | |
48 | return NULL;\r | |
49 | }\r | |
1436aea4 MK |
50 | \r |
51 | return (VOID *)(UINTN)Memory;\r | |
0ac72713 | 52 | }\r |
53 | \r | |
54 | /**\r | |
55 | Allocates one or more 4KB pages of type EfiBootServicesData.\r | |
56 | \r | |
57 | Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r | |
58 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
59 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
60 | returned.\r | |
61 | \r | |
62 | @param Pages The number of 4 KB pages to allocate.\r | |
63 | \r | |
64 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
65 | \r | |
66 | **/\r | |
67 | VOID *\r | |
68 | EFIAPI\r | |
69 | AllocatePages (\r | |
70 | IN UINTN Pages\r | |
71 | )\r | |
72 | {\r | |
e2735692 SZ |
73 | VOID *Buffer;\r |
74 | \r | |
75 | Buffer = InternalAllocatePages (EfiBootServicesData, Pages);\r | |
76 | if (Buffer != NULL) {\r | |
77 | MemoryProfileLibRecord (\r | |
1436aea4 | 78 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
79 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_PAGES,\r |
80 | EfiBootServicesData,\r | |
81 | Buffer,\r | |
82 | EFI_PAGES_TO_SIZE (Pages),\r | |
83 | NULL\r | |
84 | );\r | |
85 | }\r | |
1436aea4 | 86 | \r |
e2735692 | 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 | |
1436aea4 | 114 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
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 | |
1436aea4 | 122 | \r |
e2735692 | 123 | return Buffer;\r |
0ac72713 | 124 | }\r |
125 | \r | |
126 | /**\r | |
127 | Allocates one or more 4KB pages of type EfiReservedMemoryType.\r | |
128 | \r | |
129 | Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the\r | |
130 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
131 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
132 | returned.\r | |
133 | \r | |
134 | @param Pages The number of 4 KB pages to allocate.\r | |
135 | \r | |
136 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
137 | \r | |
138 | **/\r | |
139 | VOID *\r | |
140 | EFIAPI\r | |
141 | AllocateReservedPages (\r | |
142 | IN UINTN Pages\r | |
143 | )\r | |
144 | {\r | |
e2735692 SZ |
145 | VOID *Buffer;\r |
146 | \r | |
147 | Buffer = InternalAllocatePages (EfiReservedMemoryType, Pages);\r | |
148 | if (Buffer != NULL) {\r | |
149 | MemoryProfileLibRecord (\r | |
1436aea4 | 150 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
151 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_PAGES,\r |
152 | EfiReservedMemoryType,\r | |
153 | Buffer,\r | |
154 | EFI_PAGES_TO_SIZE (Pages),\r | |
155 | NULL\r | |
156 | );\r | |
157 | }\r | |
1436aea4 | 158 | \r |
e2735692 | 159 | return Buffer;\r |
0ac72713 | 160 | }\r |
161 | \r | |
162 | /**\r | |
163 | Frees one or more 4KB pages that were previously allocated with one of the page allocation\r | |
164 | functions in the Memory Allocation Library.\r | |
165 | \r | |
166 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
167 | must have been allocated on a previous call to the page allocation services of the Memory\r | |
aa2f249e | 168 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 169 | perform no actions.\r |
d1102dba | 170 | \r |
0ac72713 | 171 | If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r |
172 | then ASSERT().\r | |
173 | If Pages is zero, then ASSERT().\r | |
d1102dba | 174 | \r |
0ac72713 | 175 | @param Buffer Pointer to the buffer of pages to free.\r |
176 | @param Pages The number of 4 KB pages to free.\r | |
177 | \r | |
178 | **/\r | |
179 | VOID\r | |
180 | EFIAPI\r | |
181 | FreePages (\r | |
182 | IN VOID *Buffer,\r | |
183 | IN UINTN Pages\r | |
184 | )\r | |
185 | {\r | |
186 | EFI_STATUS Status;\r | |
187 | \r | |
188 | ASSERT (Pages != 0);\r | |
1436aea4 | 189 | Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)Buffer, Pages);\r |
0ac72713 | 190 | ASSERT_EFI_ERROR (Status);\r |
191 | }\r | |
192 | \r | |
193 | /**\r | |
194 | Allocates one or more 4KB pages of a certain memory type at a specified alignment.\r | |
195 | \r | |
196 | Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment\r | |
197 | specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.\r | |
198 | If there is not enough memory at the specified alignment remaining to satisfy the request, then\r | |
199 | NULL is returned.\r | |
200 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
91403ce9 | 201 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 202 | \r |
203 | @param MemoryType The type of memory to allocate.\r | |
204 | @param Pages The number of 4 KB pages to allocate.\r | |
205 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
206 | If Alignment is zero, then byte alignment is used.\r | |
207 | \r | |
208 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
209 | \r | |
210 | **/\r | |
211 | VOID *\r | |
212 | InternalAllocateAlignedPages (\r | |
d1102dba | 213 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 214 | IN UINTN Pages,\r |
215 | IN UINTN Alignment\r | |
216 | )\r | |
217 | {\r | |
218 | EFI_STATUS Status;\r | |
219 | EFI_PHYSICAL_ADDRESS Memory;\r | |
220 | UINTN AlignedMemory;\r | |
221 | UINTN AlignmentMask;\r | |
222 | UINTN UnalignedPages;\r | |
223 | UINTN RealPages;\r | |
224 | \r | |
225 | //\r | |
226 | // Alignment must be a power of two or zero.\r | |
227 | //\r | |
228 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
d1102dba | 229 | \r |
0ac72713 | 230 | if (Pages == 0) {\r |
231 | return NULL;\r | |
232 | }\r | |
1436aea4 | 233 | \r |
0ac72713 | 234 | if (Alignment > EFI_PAGE_SIZE) {\r |
235 | //\r | |
e50a226b | 236 | // Calculate the total number of pages since alignment is larger than page size.\r |
0ac72713 | 237 | //\r |
1436aea4 MK |
238 | AlignmentMask = Alignment - 1;\r |
239 | RealPages = Pages + EFI_SIZE_TO_PAGES (Alignment);\r | |
0ac72713 | 240 | //\r |
241 | // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r | |
242 | //\r | |
243 | ASSERT (RealPages > Pages);\r | |
d1102dba | 244 | \r |
1436aea4 | 245 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, RealPages, &Memory);\r |
0ac72713 | 246 | if (EFI_ERROR (Status)) {\r |
247 | return NULL;\r | |
248 | }\r | |
1436aea4 MK |
249 | \r |
250 | AlignedMemory = ((UINTN)Memory + AlignmentMask) & ~AlignmentMask;\r | |
251 | UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN)Memory);\r | |
0ac72713 | 252 | if (UnalignedPages > 0) {\r |
253 | //\r | |
254 | // Free first unaligned page(s).\r | |
255 | //\r | |
256 | Status = CoreFreePages (Memory, UnalignedPages);\r | |
257 | ASSERT_EFI_ERROR (Status);\r | |
258 | }\r | |
1436aea4 | 259 | \r |
16f69227 | 260 | Memory = AlignedMemory + EFI_PAGES_TO_SIZE (Pages);\r |
0ac72713 | 261 | UnalignedPages = RealPages - Pages - UnalignedPages;\r |
262 | if (UnalignedPages > 0) {\r | |
263 | //\r | |
264 | // Free last unaligned page(s).\r | |
265 | //\r | |
266 | Status = CoreFreePages (Memory, UnalignedPages);\r | |
267 | ASSERT_EFI_ERROR (Status);\r | |
268 | }\r | |
269 | } else {\r | |
270 | //\r | |
271 | // Do not over-allocate pages in this case.\r | |
272 | //\r | |
273 | Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
274 | if (EFI_ERROR (Status)) {\r | |
275 | return NULL;\r | |
276 | }\r | |
1436aea4 MK |
277 | \r |
278 | AlignedMemory = (UINTN)Memory;\r | |
0ac72713 | 279 | }\r |
1436aea4 MK |
280 | \r |
281 | return (VOID *)AlignedMemory;\r | |
0ac72713 | 282 | }\r |
283 | \r | |
284 | /**\r | |
285 | Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r | |
286 | \r | |
287 | Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r | |
288 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
289 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
290 | request, then NULL is returned.\r | |
d1102dba | 291 | \r |
0ac72713 | 292 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 293 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 294 | \r |
295 | @param Pages The number of 4 KB pages to allocate.\r | |
296 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
297 | If Alignment is zero, then byte alignment is used.\r | |
298 | \r | |
299 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
300 | \r | |
301 | **/\r | |
302 | VOID *\r | |
303 | EFIAPI\r | |
304 | AllocateAlignedPages (\r | |
305 | IN UINTN Pages,\r | |
306 | IN UINTN Alignment\r | |
307 | )\r | |
308 | {\r | |
e2735692 SZ |
309 | VOID *Buffer;\r |
310 | \r | |
311 | Buffer = InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);\r | |
312 | if (Buffer != NULL) {\r | |
313 | MemoryProfileLibRecord (\r | |
1436aea4 | 314 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
315 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_PAGES,\r |
316 | EfiBootServicesData,\r | |
317 | Buffer,\r | |
318 | EFI_PAGES_TO_SIZE (Pages),\r | |
319 | NULL\r | |
320 | );\r | |
321 | }\r | |
1436aea4 | 322 | \r |
e2735692 | 323 | return Buffer;\r |
0ac72713 | 324 | }\r |
325 | \r | |
326 | /**\r | |
327 | Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r | |
328 | \r | |
329 | Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r | |
330 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
331 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
332 | request, then NULL is returned.\r | |
d1102dba | 333 | \r |
0ac72713 | 334 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 335 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 336 | \r |
337 | @param Pages The number of 4 KB pages to allocate.\r | |
338 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
339 | If Alignment is zero, then byte alignment is used.\r | |
340 | \r | |
341 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
342 | \r | |
343 | **/\r | |
344 | VOID *\r | |
345 | EFIAPI\r | |
346 | AllocateAlignedRuntimePages (\r | |
347 | IN UINTN Pages,\r | |
348 | IN UINTN Alignment\r | |
349 | )\r | |
350 | {\r | |
e2735692 SZ |
351 | VOID *Buffer;\r |
352 | \r | |
353 | Buffer = InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);\r | |
354 | if (Buffer != NULL) {\r | |
355 | MemoryProfileLibRecord (\r | |
1436aea4 | 356 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
357 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RUNTIME_PAGES,\r |
358 | EfiRuntimeServicesData,\r | |
359 | Buffer,\r | |
360 | EFI_PAGES_TO_SIZE (Pages),\r | |
361 | NULL\r | |
362 | );\r | |
363 | }\r | |
1436aea4 | 364 | \r |
e2735692 | 365 | return Buffer;\r |
0ac72713 | 366 | }\r |
367 | \r | |
368 | /**\r | |
369 | Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r | |
370 | \r | |
371 | Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r | |
372 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
373 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
374 | request, then NULL is returned.\r | |
d1102dba | 375 | \r |
0ac72713 | 376 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
91403ce9 | 377 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
0ac72713 | 378 | \r |
379 | @param Pages The number of 4 KB pages to allocate.\r | |
380 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
381 | If Alignment is zero, then byte alignment is used.\r | |
382 | \r | |
383 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
384 | \r | |
385 | **/\r | |
386 | VOID *\r | |
387 | EFIAPI\r | |
388 | AllocateAlignedReservedPages (\r | |
389 | IN UINTN Pages,\r | |
390 | IN UINTN Alignment\r | |
391 | )\r | |
392 | {\r | |
e2735692 SZ |
393 | VOID *Buffer;\r |
394 | \r | |
395 | Buffer = InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);\r | |
396 | if (Buffer != NULL) {\r | |
397 | MemoryProfileLibRecord (\r | |
1436aea4 | 398 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
399 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RESERVED_PAGES,\r |
400 | EfiReservedMemoryType,\r | |
401 | Buffer,\r | |
402 | EFI_PAGES_TO_SIZE (Pages),\r | |
403 | NULL\r | |
404 | );\r | |
405 | }\r | |
1436aea4 | 406 | \r |
e2735692 | 407 | return Buffer;\r |
0ac72713 | 408 | }\r |
409 | \r | |
410 | /**\r | |
411 | Frees one or more 4KB pages that were previously allocated with one of the aligned page\r | |
412 | allocation functions in the Memory Allocation Library.\r | |
413 | \r | |
414 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
415 | must have been allocated on a previous call to the aligned page allocation services of the Memory\r | |
d1102dba | 416 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 417 | perform no actions.\r |
d1102dba | 418 | \r |
0ac72713 | 419 | If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r |
420 | Library, then ASSERT().\r | |
421 | If Pages is zero, then ASSERT().\r | |
d1102dba | 422 | \r |
0ac72713 | 423 | @param Buffer Pointer to the buffer of pages to free.\r |
424 | @param Pages The number of 4 KB pages to free.\r | |
425 | \r | |
426 | **/\r | |
427 | VOID\r | |
428 | EFIAPI\r | |
429 | FreeAlignedPages (\r | |
430 | IN VOID *Buffer,\r | |
431 | IN UINTN Pages\r | |
432 | )\r | |
433 | {\r | |
434 | EFI_STATUS Status;\r | |
435 | \r | |
436 | ASSERT (Pages != 0);\r | |
1436aea4 | 437 | Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)Buffer, Pages);\r |
0ac72713 | 438 | ASSERT_EFI_ERROR (Status);\r |
439 | }\r | |
440 | \r | |
441 | /**\r | |
442 | Allocates a buffer of a certain pool type.\r | |
443 | \r | |
444 | Allocates the number bytes specified by AllocationSize of a certain pool type and returns a\r | |
445 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
446 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
447 | \r | |
448 | @param MemoryType The type of memory to allocate.\r | |
449 | @param AllocationSize The number of bytes to allocate.\r | |
450 | \r | |
451 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
452 | \r | |
453 | **/\r | |
454 | VOID *\r | |
455 | InternalAllocatePool (\r | |
d1102dba | 456 | IN EFI_MEMORY_TYPE MemoryType,\r |
0ac72713 | 457 | IN UINTN AllocationSize\r |
458 | )\r | |
459 | {\r | |
460 | EFI_STATUS Status;\r | |
461 | VOID *Memory;\r | |
462 | \r | |
4e1005ec ED |
463 | Memory = NULL;\r |
464 | \r | |
0ac72713 | 465 | Status = CoreAllocatePool (MemoryType, AllocationSize, &Memory);\r |
466 | if (EFI_ERROR (Status)) {\r | |
467 | Memory = NULL;\r | |
468 | }\r | |
1436aea4 | 469 | \r |
0ac72713 | 470 | return Memory;\r |
471 | }\r | |
472 | \r | |
473 | /**\r | |
474 | Allocates a buffer of type EfiBootServicesData.\r | |
475 | \r | |
476 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r | |
477 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
478 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
479 | \r | |
480 | @param AllocationSize The number of bytes to allocate.\r | |
481 | \r | |
482 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
483 | \r | |
484 | **/\r | |
485 | VOID *\r | |
486 | EFIAPI\r | |
487 | AllocatePool (\r | |
488 | IN UINTN AllocationSize\r | |
489 | )\r | |
490 | {\r | |
e2735692 SZ |
491 | VOID *Buffer;\r |
492 | \r | |
493 | Buffer = InternalAllocatePool (EfiBootServicesData, AllocationSize);\r | |
494 | if (Buffer != NULL) {\r | |
495 | MemoryProfileLibRecord (\r | |
1436aea4 | 496 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
497 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_POOL,\r |
498 | EfiBootServicesData,\r | |
499 | Buffer,\r | |
500 | AllocationSize,\r | |
501 | NULL\r | |
502 | );\r | |
503 | }\r | |
1436aea4 | 504 | \r |
e2735692 | 505 | return Buffer;\r |
0ac72713 | 506 | }\r |
507 | \r | |
508 | /**\r | |
509 | Allocates a buffer of type EfiRuntimeServicesData.\r | |
510 | \r | |
511 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r | |
512 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
513 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
514 | \r | |
515 | @param AllocationSize The number of bytes to allocate.\r | |
516 | \r | |
517 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
518 | \r | |
519 | **/\r | |
520 | VOID *\r | |
521 | EFIAPI\r | |
522 | AllocateRuntimePool (\r | |
523 | IN UINTN AllocationSize\r | |
524 | )\r | |
525 | {\r | |
e2735692 SZ |
526 | VOID *Buffer;\r |
527 | \r | |
528 | Buffer = InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r | |
529 | if (Buffer != NULL) {\r | |
530 | MemoryProfileLibRecord (\r | |
1436aea4 | 531 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
532 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_POOL,\r |
533 | EfiRuntimeServicesData,\r | |
534 | Buffer,\r | |
535 | AllocationSize,\r | |
536 | NULL\r | |
537 | );\r | |
538 | }\r | |
1436aea4 | 539 | \r |
e2735692 | 540 | return Buffer;\r |
0ac72713 | 541 | }\r |
542 | \r | |
543 | /**\r | |
31771abd | 544 | Allocates a buffer of type EfiReservedMemoryType.\r |
0ac72713 | 545 | \r |
31771abd | 546 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns\r |
0ac72713 | 547 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r |
548 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
549 | \r | |
550 | @param AllocationSize The number of bytes to allocate.\r | |
551 | \r | |
552 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
553 | \r | |
554 | **/\r | |
555 | VOID *\r | |
556 | EFIAPI\r | |
557 | AllocateReservedPool (\r | |
558 | IN UINTN AllocationSize\r | |
559 | )\r | |
560 | {\r | |
e2735692 SZ |
561 | VOID *Buffer;\r |
562 | \r | |
563 | Buffer = InternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r | |
564 | if (Buffer != NULL) {\r | |
565 | MemoryProfileLibRecord (\r | |
1436aea4 | 566 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
567 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_POOL,\r |
568 | EfiReservedMemoryType,\r | |
569 | Buffer,\r | |
570 | AllocationSize,\r | |
571 | NULL\r | |
572 | );\r | |
573 | }\r | |
1436aea4 | 574 | \r |
e2735692 | 575 | return Buffer;\r |
0ac72713 | 576 | }\r |
577 | \r | |
578 | /**\r | |
446b94b0 | 579 | Allocates and zeros a buffer of a certain pool type.\r |
0ac72713 | 580 | \r |
446b94b0 | 581 | Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer\r |
0ac72713 | 582 | with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid\r |
583 | buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,\r | |
584 | then NULL is returned.\r | |
585 | \r | |
586 | @param PoolType The type of memory to allocate.\r | |
587 | @param AllocationSize The number of bytes to allocate and zero.\r | |
588 | \r | |
589 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
590 | \r | |
591 | **/\r | |
592 | VOID *\r | |
593 | InternalAllocateZeroPool (\r | |
d1102dba | 594 | IN EFI_MEMORY_TYPE PoolType,\r |
0ac72713 | 595 | IN UINTN AllocationSize\r |
d1102dba | 596 | )\r |
0ac72713 | 597 | {\r |
598 | VOID *Memory;\r | |
599 | \r | |
600 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
601 | if (Memory != NULL) {\r | |
602 | Memory = ZeroMem (Memory, AllocationSize);\r | |
603 | }\r | |
1436aea4 | 604 | \r |
0ac72713 | 605 | return Memory;\r |
606 | }\r | |
607 | \r | |
608 | /**\r | |
609 | Allocates and zeros a buffer of type EfiBootServicesData.\r | |
610 | \r | |
611 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r | |
612 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
613 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
614 | request, then NULL is returned.\r | |
615 | \r | |
616 | @param AllocationSize The number of bytes to allocate and zero.\r | |
617 | \r | |
618 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
619 | \r | |
620 | **/\r | |
621 | VOID *\r | |
622 | EFIAPI\r | |
623 | AllocateZeroPool (\r | |
624 | IN UINTN AllocationSize\r | |
625 | )\r | |
626 | {\r | |
e2735692 SZ |
627 | VOID *Buffer;\r |
628 | \r | |
629 | Buffer = InternalAllocateZeroPool (EfiBootServicesData, AllocationSize);\r | |
630 | if (Buffer != NULL) {\r | |
631 | MemoryProfileLibRecord (\r | |
1436aea4 | 632 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
633 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ZERO_POOL,\r |
634 | EfiBootServicesData,\r | |
635 | Buffer,\r | |
636 | AllocationSize,\r | |
637 | NULL\r | |
638 | );\r | |
639 | }\r | |
1436aea4 | 640 | \r |
e2735692 | 641 | return Buffer;\r |
0ac72713 | 642 | }\r |
643 | \r | |
644 | /**\r | |
645 | Allocates and zeros a buffer of type EfiRuntimeServicesData.\r | |
646 | \r | |
647 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r | |
648 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
649 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
650 | request, then NULL is returned.\r | |
651 | \r | |
652 | @param AllocationSize The number of bytes to allocate and zero.\r | |
653 | \r | |
654 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
655 | \r | |
656 | **/\r | |
657 | VOID *\r | |
658 | EFIAPI\r | |
659 | AllocateRuntimeZeroPool (\r | |
660 | IN UINTN AllocationSize\r | |
661 | )\r | |
662 | {\r | |
e2735692 SZ |
663 | VOID *Buffer;\r |
664 | \r | |
665 | Buffer = InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r | |
666 | if (Buffer != NULL) {\r | |
667 | MemoryProfileLibRecord (\r | |
1436aea4 | 668 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
669 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_ZERO_POOL,\r |
670 | EfiRuntimeServicesData,\r | |
671 | Buffer,\r | |
672 | AllocationSize,\r | |
673 | NULL\r | |
674 | );\r | |
675 | }\r | |
1436aea4 | 676 | \r |
e2735692 | 677 | return Buffer;\r |
0ac72713 | 678 | }\r |
679 | \r | |
680 | /**\r | |
681 | Allocates and zeros a buffer of type EfiReservedMemoryType.\r | |
682 | \r | |
683 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r | |
684 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
685 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
686 | request, then NULL is returned.\r | |
687 | \r | |
688 | @param AllocationSize The number of bytes to allocate and zero.\r | |
689 | \r | |
690 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
691 | \r | |
692 | **/\r | |
693 | VOID *\r | |
694 | EFIAPI\r | |
695 | AllocateReservedZeroPool (\r | |
696 | IN UINTN AllocationSize\r | |
697 | )\r | |
698 | {\r | |
e2735692 SZ |
699 | VOID *Buffer;\r |
700 | \r | |
701 | Buffer = InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r | |
702 | if (Buffer != NULL) {\r | |
703 | MemoryProfileLibRecord (\r | |
1436aea4 | 704 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
705 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_ZERO_POOL,\r |
706 | EfiReservedMemoryType,\r | |
707 | Buffer,\r | |
708 | AllocationSize,\r | |
709 | NULL\r | |
710 | );\r | |
711 | }\r | |
1436aea4 | 712 | \r |
e2735692 | 713 | return Buffer;\r |
0ac72713 | 714 | }\r |
715 | \r | |
716 | /**\r | |
446b94b0 | 717 | Copies a buffer to an allocated buffer of a certain pool type.\r |
0ac72713 | 718 | \r |
446b94b0 | 719 | Allocates the number bytes specified by AllocationSize of a certain pool type, copies\r |
0ac72713 | 720 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r |
721 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
722 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
723 | If Buffer is NULL, then ASSERT().\r | |
d1102dba | 724 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 725 | \r |
726 | @param PoolType The type of pool to allocate.\r | |
727 | @param AllocationSize The number of bytes to allocate and zero.\r | |
728 | @param Buffer The buffer to copy to the allocated buffer.\r | |
729 | \r | |
730 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
731 | \r | |
732 | **/\r | |
733 | VOID *\r | |
734 | InternalAllocateCopyPool (\r | |
d1102dba | 735 | IN EFI_MEMORY_TYPE PoolType,\r |
0ac72713 | 736 | IN UINTN AllocationSize,\r |
737 | IN CONST VOID *Buffer\r | |
d1102dba | 738 | )\r |
0ac72713 | 739 | {\r |
740 | VOID *Memory;\r | |
741 | \r | |
742 | ASSERT (Buffer != NULL);\r | |
1436aea4 | 743 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN)Buffer + 1));\r |
0ac72713 | 744 | \r |
745 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
746 | if (Memory != NULL) {\r | |
1436aea4 | 747 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r |
0ac72713 | 748 | }\r |
1436aea4 | 749 | \r |
0ac72713 | 750 | return Memory;\r |
d1102dba | 751 | }\r |
0ac72713 | 752 | \r |
753 | /**\r | |
754 | Copies a buffer to an allocated buffer of type EfiBootServicesData.\r | |
755 | \r | |
756 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r | |
757 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
758 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
759 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 760 | \r |
0ac72713 | 761 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 762 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 763 | \r |
764 | @param AllocationSize The number of bytes to allocate and zero.\r | |
765 | @param Buffer The buffer to copy to the allocated buffer.\r | |
766 | \r | |
767 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
768 | \r | |
769 | **/\r | |
770 | VOID *\r | |
771 | EFIAPI\r | |
772 | AllocateCopyPool (\r | |
773 | IN UINTN AllocationSize,\r | |
774 | IN CONST VOID *Buffer\r | |
775 | )\r | |
776 | {\r | |
e2735692 SZ |
777 | VOID *NewBuffer;\r |
778 | \r | |
779 | NewBuffer = InternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);\r | |
780 | if (NewBuffer != NULL) {\r | |
781 | MemoryProfileLibRecord (\r | |
1436aea4 | 782 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
783 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_COPY_POOL,\r |
784 | EfiBootServicesData,\r | |
785 | NewBuffer,\r | |
786 | AllocationSize,\r | |
787 | NULL\r | |
788 | );\r | |
789 | }\r | |
1436aea4 | 790 | \r |
e2735692 | 791 | return NewBuffer;\r |
0ac72713 | 792 | }\r |
793 | \r | |
794 | /**\r | |
795 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r | |
796 | \r | |
797 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r | |
798 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
799 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
800 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 801 | \r |
0ac72713 | 802 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 803 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 804 | \r |
805 | @param AllocationSize The number of bytes to allocate and zero.\r | |
806 | @param Buffer The buffer to copy to the allocated buffer.\r | |
807 | \r | |
808 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
809 | \r | |
810 | **/\r | |
811 | VOID *\r | |
812 | EFIAPI\r | |
813 | AllocateRuntimeCopyPool (\r | |
814 | IN UINTN AllocationSize,\r | |
815 | IN CONST VOID *Buffer\r | |
816 | )\r | |
817 | {\r | |
e2735692 SZ |
818 | VOID *NewBuffer;\r |
819 | \r | |
820 | NewBuffer = InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r | |
821 | if (NewBuffer != NULL) {\r | |
822 | MemoryProfileLibRecord (\r | |
1436aea4 | 823 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
824 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_COPY_POOL,\r |
825 | EfiRuntimeServicesData,\r | |
826 | NewBuffer,\r | |
827 | AllocationSize,\r | |
828 | NULL\r | |
829 | );\r | |
830 | }\r | |
1436aea4 | 831 | \r |
e2735692 | 832 | return NewBuffer;\r |
0ac72713 | 833 | }\r |
834 | \r | |
835 | /**\r | |
836 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r | |
837 | \r | |
838 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r | |
839 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
840 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
841 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 842 | \r |
0ac72713 | 843 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 844 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
0ac72713 | 845 | \r |
846 | @param AllocationSize The number of bytes to allocate and zero.\r | |
847 | @param Buffer The buffer to copy to the allocated buffer.\r | |
848 | \r | |
849 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
850 | \r | |
851 | **/\r | |
852 | VOID *\r | |
853 | EFIAPI\r | |
854 | AllocateReservedCopyPool (\r | |
855 | IN UINTN AllocationSize,\r | |
856 | IN CONST VOID *Buffer\r | |
857 | )\r | |
858 | {\r | |
e2735692 SZ |
859 | VOID *NewBuffer;\r |
860 | \r | |
861 | NewBuffer = InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r | |
862 | if (NewBuffer != NULL) {\r | |
863 | MemoryProfileLibRecord (\r | |
1436aea4 | 864 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
865 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_COPY_POOL,\r |
866 | EfiRuntimeServicesData,\r | |
867 | NewBuffer,\r | |
868 | AllocationSize,\r | |
869 | NULL\r | |
870 | );\r | |
871 | }\r | |
1436aea4 | 872 | \r |
e2735692 | 873 | return NewBuffer;\r |
0ac72713 | 874 | }\r |
875 | \r | |
f6998888 | 876 | /**\r |
877 | Reallocates a buffer of a specified memory type.\r | |
878 | \r | |
879 | Allocates and zeros the number bytes specified by NewSize from memory of the type\r | |
d1102dba LG |
880 | specified by PoolType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
881 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
882 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
883 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 884 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 885 | \r |
56304569 | 886 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
887 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 888 | \r |
889 | @param PoolType The type of pool to allocate.\r | |
890 | @param OldSize The size, in bytes, of OldBuffer.\r | |
891 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 892 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 893 | parameter that may be NULL.\r |
894 | \r | |
895 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
896 | \r | |
897 | **/\r | |
898 | VOID *\r | |
899 | InternalReallocatePool (\r | |
d1102dba | 900 | IN EFI_MEMORY_TYPE PoolType,\r |
f6998888 | 901 | IN UINTN OldSize,\r |
902 | IN UINTN NewSize,\r | |
903 | IN VOID *OldBuffer OPTIONAL\r | |
904 | )\r | |
905 | {\r | |
906 | VOID *NewBuffer;\r | |
907 | \r | |
ae55f4eb | 908 | NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);\r |
1436aea4 | 909 | if ((NewBuffer != NULL) && (OldBuffer != NULL)) {\r |
f6998888 | 910 | CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));\r |
911 | FreePool (OldBuffer);\r | |
912 | }\r | |
1436aea4 | 913 | \r |
f6998888 | 914 | return NewBuffer;\r |
915 | }\r | |
916 | \r | |
917 | /**\r | |
918 | Reallocates a buffer of type EfiBootServicesData.\r | |
919 | \r | |
920 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
921 | EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
922 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
923 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
924 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 925 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 926 | \r |
56304569 | 927 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
928 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 929 | \r |
930 | @param OldSize The size, in bytes, of OldBuffer.\r | |
931 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 932 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 933 | parameter that may be NULL.\r |
934 | \r | |
935 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
936 | \r | |
937 | **/\r | |
938 | VOID *\r | |
939 | EFIAPI\r | |
940 | ReallocatePool (\r | |
941 | IN UINTN OldSize,\r | |
942 | IN UINTN NewSize,\r | |
943 | IN VOID *OldBuffer OPTIONAL\r | |
944 | )\r | |
945 | {\r | |
e2735692 SZ |
946 | VOID *Buffer;\r |
947 | \r | |
948 | Buffer = InternalReallocatePool (EfiBootServicesData, OldSize, NewSize, OldBuffer);\r | |
949 | if (Buffer != NULL) {\r | |
950 | MemoryProfileLibRecord (\r | |
1436aea4 | 951 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
952 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_POOL,\r |
953 | EfiBootServicesData,\r | |
954 | Buffer,\r | |
955 | NewSize,\r | |
956 | NULL\r | |
957 | );\r | |
958 | }\r | |
1436aea4 | 959 | \r |
e2735692 | 960 | return Buffer;\r |
f6998888 | 961 | }\r |
962 | \r | |
963 | /**\r | |
964 | Reallocates a buffer of type EfiRuntimeServicesData.\r | |
965 | \r | |
966 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
967 | EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
968 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
969 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
970 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 971 | enough memory remaining to satisfy the request, then NULL is returned.\r |
972 | \r | |
56304569 | 973 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
974 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 975 | \r |
976 | @param OldSize The size, in bytes, of OldBuffer.\r | |
977 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 978 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 979 | parameter that may be NULL.\r |
980 | \r | |
981 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
982 | \r | |
983 | **/\r | |
984 | VOID *\r | |
985 | EFIAPI\r | |
986 | ReallocateRuntimePool (\r | |
987 | IN UINTN OldSize,\r | |
988 | IN UINTN NewSize,\r | |
989 | IN VOID *OldBuffer OPTIONAL\r | |
990 | )\r | |
991 | {\r | |
e2735692 SZ |
992 | VOID *Buffer;\r |
993 | \r | |
994 | Buffer = InternalReallocatePool (EfiRuntimeServicesData, OldSize, NewSize, OldBuffer);\r | |
995 | if (Buffer != NULL) {\r | |
996 | MemoryProfileLibRecord (\r | |
1436aea4 | 997 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
998 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RUNTIME_POOL,\r |
999 | EfiRuntimeServicesData,\r | |
1000 | Buffer,\r | |
1001 | NewSize,\r | |
1002 | NULL\r | |
1003 | );\r | |
1004 | }\r | |
1436aea4 | 1005 | \r |
e2735692 | 1006 | return Buffer;\r |
f6998888 | 1007 | }\r |
1008 | \r | |
1009 | /**\r | |
1010 | Reallocates a buffer of type EfiReservedMemoryType.\r | |
1011 | \r | |
1012 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
1013 | EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
1014 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
1015 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
1016 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
f6998888 | 1017 | enough memory remaining to satisfy the request, then NULL is returned.\r |
6a30c6d0 | 1018 | \r |
56304569 | 1019 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
1020 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
f6998888 | 1021 | \r |
1022 | @param OldSize The size, in bytes, of OldBuffer.\r | |
1023 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 1024 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
f6998888 | 1025 | parameter that may be NULL.\r |
1026 | \r | |
1027 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
1028 | \r | |
1029 | **/\r | |
1030 | VOID *\r | |
1031 | EFIAPI\r | |
1032 | ReallocateReservedPool (\r | |
1033 | IN UINTN OldSize,\r | |
1034 | IN UINTN NewSize,\r | |
1035 | IN VOID *OldBuffer OPTIONAL\r | |
1036 | )\r | |
1037 | {\r | |
e2735692 SZ |
1038 | VOID *Buffer;\r |
1039 | \r | |
1040 | Buffer = InternalReallocatePool (EfiReservedMemoryType, OldSize, NewSize, OldBuffer);\r | |
1041 | if (Buffer != NULL) {\r | |
1042 | MemoryProfileLibRecord (\r | |
1436aea4 | 1043 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
e2735692 SZ |
1044 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RESERVED_POOL,\r |
1045 | EfiReservedMemoryType,\r | |
1046 | Buffer,\r | |
1047 | NewSize,\r | |
1048 | NULL\r | |
1049 | );\r | |
1050 | }\r | |
1436aea4 | 1051 | \r |
e2735692 | 1052 | return Buffer;\r |
f6998888 | 1053 | }\r |
1054 | \r | |
0ac72713 | 1055 | /**\r |
1056 | Frees a buffer that was previously allocated with one of the pool allocation functions in the\r | |
1057 | Memory Allocation Library.\r | |
1058 | \r | |
1059 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
aa2f249e | 1060 | pool allocation services of the Memory Allocation Library. If it is not possible to free pool\r |
446b94b0 | 1061 | resources, then this function will perform no actions.\r |
d1102dba | 1062 | \r |
0ac72713 | 1063 | If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r |
1064 | then ASSERT().\r | |
1065 | \r | |
1066 | @param Buffer Pointer to the buffer to free.\r | |
1067 | \r | |
1068 | **/\r | |
1069 | VOID\r | |
1070 | EFIAPI\r | |
1071 | FreePool (\r | |
1436aea4 | 1072 | IN VOID *Buffer\r |
0ac72713 | 1073 | )\r |
1074 | {\r | |
1436aea4 | 1075 | EFI_STATUS Status;\r |
0ac72713 | 1076 | \r |
1077 | Status = CoreFreePool (Buffer);\r | |
1078 | ASSERT_EFI_ERROR (Status);\r | |
1079 | }\r |