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1439c255 | 1 | /** @file\r |
d1102dba | 2 | Support routines for memory allocation routines based\r |
1439c255 SZ |
3 | on boot services for Dxe phase drivers, with memory profile support.\r |
4 | \r | |
d1102dba | 5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
1439c255 SZ |
7 | \r |
8 | **/\r | |
9 | \r | |
1439c255 SZ |
10 | #include <Uefi.h>\r |
11 | \r | |
1439c255 SZ |
12 | #include <Library/MemoryAllocationLib.h>\r |
13 | #include <Library/UefiBootServicesTableLib.h>\r | |
14 | #include <Library/BaseMemoryLib.h>\r | |
15 | #include <Library/DebugLib.h>\r | |
16 | \r | |
17 | #include <Library/MemoryProfileLib.h>\r | |
18 | \r | |
19 | /**\r | |
20 | Allocates one or more 4KB pages of a certain memory type.\r | |
21 | \r | |
22 | Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated\r | |
23 | buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.\r | |
24 | If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
25 | \r | |
26 | @param MemoryType The type of memory to allocate.\r | |
27 | @param Pages The number of 4 KB pages to allocate.\r | |
28 | \r | |
29 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
30 | \r | |
31 | **/\r | |
32 | VOID *\r | |
33 | InternalAllocatePages (\r | |
d1102dba | 34 | IN EFI_MEMORY_TYPE MemoryType,\r |
1439c255 SZ |
35 | IN UINTN Pages\r |
36 | )\r | |
37 | {\r | |
38 | EFI_STATUS Status;\r | |
d1102dba | 39 | EFI_PHYSICAL_ADDRESS Memory;\r |
1439c255 SZ |
40 | \r |
41 | if (Pages == 0) {\r | |
42 | return NULL;\r | |
43 | }\r | |
44 | \r | |
45 | Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
46 | if (EFI_ERROR (Status)) {\r | |
47 | return NULL;\r | |
48 | }\r | |
1436aea4 MK |
49 | \r |
50 | return (VOID *)(UINTN)Memory;\r | |
1439c255 SZ |
51 | }\r |
52 | \r | |
53 | /**\r | |
54 | Allocates one or more 4KB pages of type EfiBootServicesData.\r | |
55 | \r | |
56 | Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r | |
57 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
58 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
59 | returned.\r | |
60 | \r | |
61 | @param Pages The number of 4 KB pages to allocate.\r | |
62 | \r | |
63 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
64 | \r | |
65 | **/\r | |
66 | VOID *\r | |
67 | EFIAPI\r | |
68 | AllocatePages (\r | |
69 | IN UINTN Pages\r | |
70 | )\r | |
71 | {\r | |
72 | VOID *Buffer;\r | |
73 | \r | |
74 | Buffer = InternalAllocatePages (EfiBootServicesData, Pages);\r | |
75 | if (Buffer != NULL) {\r | |
76 | MemoryProfileLibRecord (\r | |
1436aea4 | 77 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
78 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_PAGES,\r |
79 | EfiBootServicesData,\r | |
80 | Buffer,\r | |
81 | EFI_PAGES_TO_SIZE (Pages),\r | |
82 | NULL\r | |
83 | );\r | |
84 | }\r | |
1436aea4 | 85 | \r |
1439c255 SZ |
86 | return Buffer;\r |
87 | }\r | |
88 | \r | |
89 | /**\r | |
90 | Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r | |
91 | \r | |
92 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
93 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
94 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
95 | returned.\r | |
96 | \r | |
97 | @param Pages The number of 4 KB pages to allocate.\r | |
98 | \r | |
99 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
100 | \r | |
101 | **/\r | |
102 | VOID *\r | |
103 | EFIAPI\r | |
104 | AllocateRuntimePages (\r | |
105 | IN UINTN Pages\r | |
106 | )\r | |
107 | {\r | |
108 | VOID *Buffer;\r | |
109 | \r | |
110 | Buffer = InternalAllocatePages (EfiRuntimeServicesData, Pages);\r | |
111 | if (Buffer != NULL) {\r | |
112 | MemoryProfileLibRecord (\r | |
1436aea4 | 113 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
114 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_PAGES,\r |
115 | EfiRuntimeServicesData,\r | |
116 | Buffer,\r | |
117 | EFI_PAGES_TO_SIZE (Pages),\r | |
118 | NULL\r | |
119 | );\r | |
120 | }\r | |
1436aea4 | 121 | \r |
1439c255 SZ |
122 | return Buffer;\r |
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 | |
144 | VOID *Buffer;\r | |
145 | \r | |
146 | Buffer = InternalAllocatePages (EfiReservedMemoryType, Pages);\r | |
147 | if (Buffer != NULL) {\r | |
148 | MemoryProfileLibRecord (\r | |
1436aea4 | 149 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
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 | |
1436aea4 | 157 | \r |
1439c255 SZ |
158 | return Buffer;\r |
159 | }\r | |
160 | \r | |
161 | /**\r | |
162 | Frees one or more 4KB pages that were previously allocated with one of the page allocation\r | |
163 | functions in the Memory Allocation Library.\r | |
164 | \r | |
165 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
166 | must have been allocated on a previous call to the page allocation services of the Memory\r | |
167 | Allocation Library. If it is not possible to free allocated pages, then this function will\r | |
168 | perform no actions.\r | |
d1102dba | 169 | \r |
1439c255 SZ |
170 | If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r |
171 | then ASSERT().\r | |
172 | If Pages is zero, then ASSERT().\r | |
d1102dba | 173 | \r |
1439c255 SZ |
174 | @param Buffer The pointer to the buffer of pages to free.\r |
175 | @param Pages The number of 4 KB pages to free.\r | |
176 | \r | |
177 | **/\r | |
178 | VOID\r | |
179 | EFIAPI\r | |
180 | FreePages (\r | |
181 | IN VOID *Buffer,\r | |
182 | IN UINTN Pages\r | |
183 | )\r | |
184 | {\r | |
1436aea4 | 185 | EFI_STATUS Status;\r |
1439c255 SZ |
186 | \r |
187 | ASSERT (Pages != 0);\r | |
1436aea4 | 188 | Status = gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)Buffer, Pages);\r |
1439c255 SZ |
189 | ASSERT_EFI_ERROR (Status);\r |
190 | }\r | |
191 | \r | |
192 | /**\r | |
193 | Allocates one or more 4KB pages of a certain memory type at a specified alignment.\r | |
194 | \r | |
195 | Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment\r | |
196 | specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.\r | |
197 | If there is not enough memory at the specified alignment remaining to satisfy the request, then\r | |
198 | NULL is returned.\r | |
199 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
200 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r | |
201 | \r | |
202 | @param MemoryType The type of memory to allocate.\r | |
203 | @param Pages The number of 4 KB pages to allocate.\r | |
204 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
205 | If Alignment is zero, then byte alignment is used.\r | |
206 | \r | |
207 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
208 | \r | |
209 | **/\r | |
210 | VOID *\r | |
211 | InternalAllocateAlignedPages (\r | |
d1102dba | 212 | IN EFI_MEMORY_TYPE MemoryType,\r |
1439c255 SZ |
213 | IN UINTN Pages,\r |
214 | IN UINTN Alignment\r | |
215 | )\r | |
216 | {\r | |
217 | EFI_STATUS Status;\r | |
218 | EFI_PHYSICAL_ADDRESS Memory;\r | |
219 | UINTN AlignedMemory;\r | |
220 | UINTN AlignmentMask;\r | |
221 | UINTN UnalignedPages;\r | |
222 | UINTN RealPages;\r | |
223 | \r | |
224 | //\r | |
225 | // Alignment must be a power of two or zero.\r | |
226 | //\r | |
227 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
d1102dba | 228 | \r |
1439c255 SZ |
229 | if (Pages == 0) {\r |
230 | return NULL;\r | |
231 | }\r | |
1436aea4 | 232 | \r |
1439c255 SZ |
233 | if (Alignment > EFI_PAGE_SIZE) {\r |
234 | //\r | |
235 | // Calculate the total number of pages since alignment is larger than page size.\r | |
236 | //\r | |
1436aea4 MK |
237 | AlignmentMask = Alignment - 1;\r |
238 | RealPages = Pages + EFI_SIZE_TO_PAGES (Alignment);\r | |
1439c255 SZ |
239 | //\r |
240 | // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r | |
241 | //\r | |
242 | ASSERT (RealPages > Pages);\r | |
d1102dba | 243 | \r |
1436aea4 | 244 | Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, RealPages, &Memory);\r |
1439c255 SZ |
245 | if (EFI_ERROR (Status)) {\r |
246 | return NULL;\r | |
247 | }\r | |
1436aea4 MK |
248 | \r |
249 | AlignedMemory = ((UINTN)Memory + AlignmentMask) & ~AlignmentMask;\r | |
250 | UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN)Memory);\r | |
1439c255 SZ |
251 | if (UnalignedPages > 0) {\r |
252 | //\r | |
253 | // Free first unaligned page(s).\r | |
254 | //\r | |
255 | Status = gBS->FreePages (Memory, UnalignedPages);\r | |
256 | ASSERT_EFI_ERROR (Status);\r | |
257 | }\r | |
1436aea4 | 258 | \r |
16f69227 | 259 | Memory = AlignedMemory + EFI_PAGES_TO_SIZE (Pages);\r |
1439c255 SZ |
260 | UnalignedPages = RealPages - Pages - UnalignedPages;\r |
261 | if (UnalignedPages > 0) {\r | |
262 | //\r | |
263 | // Free last unaligned page(s).\r | |
264 | //\r | |
265 | Status = gBS->FreePages (Memory, UnalignedPages);\r | |
266 | ASSERT_EFI_ERROR (Status);\r | |
267 | }\r | |
268 | } else {\r | |
269 | //\r | |
270 | // Do not over-allocate pages in this case.\r | |
271 | //\r | |
272 | Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r | |
273 | if (EFI_ERROR (Status)) {\r | |
274 | return NULL;\r | |
275 | }\r | |
1436aea4 MK |
276 | \r |
277 | AlignedMemory = (UINTN)Memory;\r | |
1439c255 | 278 | }\r |
1436aea4 MK |
279 | \r |
280 | return (VOID *)AlignedMemory;\r | |
1439c255 SZ |
281 | }\r |
282 | \r | |
283 | /**\r | |
284 | Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r | |
285 | \r | |
286 | Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r | |
287 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
288 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
289 | request, then NULL is returned.\r | |
d1102dba | 290 | \r |
1439c255 SZ |
291 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
292 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r | |
293 | \r | |
294 | @param Pages The number of 4 KB pages to allocate.\r | |
295 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
296 | If Alignment is zero, then byte alignment is used.\r | |
297 | \r | |
298 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
299 | \r | |
300 | **/\r | |
301 | VOID *\r | |
302 | EFIAPI\r | |
303 | AllocateAlignedPages (\r | |
304 | IN UINTN Pages,\r | |
305 | IN UINTN Alignment\r | |
306 | )\r | |
307 | {\r | |
308 | VOID *Buffer;\r | |
309 | \r | |
310 | Buffer = InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);\r | |
311 | if (Buffer != NULL) {\r | |
312 | MemoryProfileLibRecord (\r | |
1436aea4 | 313 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
314 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_PAGES,\r |
315 | EfiBootServicesData,\r | |
316 | Buffer,\r | |
317 | EFI_PAGES_TO_SIZE (Pages),\r | |
318 | NULL\r | |
319 | );\r | |
320 | }\r | |
1436aea4 | 321 | \r |
1439c255 SZ |
322 | return Buffer;\r |
323 | }\r | |
324 | \r | |
325 | /**\r | |
326 | Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r | |
327 | \r | |
328 | Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r | |
329 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
330 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
331 | request, then NULL is returned.\r | |
d1102dba | 332 | \r |
1439c255 SZ |
333 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
334 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r | |
335 | \r | |
336 | @param Pages The number of 4 KB pages to allocate.\r | |
337 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
338 | If Alignment is zero, then byte alignment is used.\r | |
339 | \r | |
340 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
341 | \r | |
342 | **/\r | |
343 | VOID *\r | |
344 | EFIAPI\r | |
345 | AllocateAlignedRuntimePages (\r | |
346 | IN UINTN Pages,\r | |
347 | IN UINTN Alignment\r | |
348 | )\r | |
349 | {\r | |
350 | VOID *Buffer;\r | |
351 | \r | |
352 | Buffer = InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);\r | |
353 | if (Buffer != NULL) {\r | |
354 | MemoryProfileLibRecord (\r | |
1436aea4 | 355 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
356 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RUNTIME_PAGES,\r |
357 | EfiRuntimeServicesData,\r | |
358 | Buffer,\r | |
359 | EFI_PAGES_TO_SIZE (Pages),\r | |
360 | NULL\r | |
361 | );\r | |
362 | }\r | |
1436aea4 | 363 | \r |
1439c255 SZ |
364 | return Buffer;\r |
365 | }\r | |
366 | \r | |
367 | /**\r | |
368 | Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r | |
369 | \r | |
370 | Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r | |
371 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
372 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
373 | request, then NULL is returned.\r | |
d1102dba | 374 | \r |
1439c255 SZ |
375 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
376 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r | |
377 | \r | |
378 | @param Pages The number of 4 KB pages to allocate.\r | |
379 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
380 | If Alignment is zero, then byte alignment is used.\r | |
381 | \r | |
382 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
383 | \r | |
384 | **/\r | |
385 | VOID *\r | |
386 | EFIAPI\r | |
387 | AllocateAlignedReservedPages (\r | |
388 | IN UINTN Pages,\r | |
389 | IN UINTN Alignment\r | |
390 | )\r | |
391 | {\r | |
392 | VOID *Buffer;\r | |
393 | \r | |
394 | Buffer = InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);\r | |
395 | if (Buffer != NULL) {\r | |
396 | MemoryProfileLibRecord (\r | |
1436aea4 | 397 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
398 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ALIGNED_RESERVED_PAGES,\r |
399 | EfiReservedMemoryType,\r | |
400 | Buffer,\r | |
401 | EFI_PAGES_TO_SIZE (Pages),\r | |
402 | NULL\r | |
403 | );\r | |
404 | }\r | |
1436aea4 | 405 | \r |
1439c255 SZ |
406 | return Buffer;\r |
407 | }\r | |
408 | \r | |
409 | /**\r | |
410 | Frees one or more 4KB pages that were previously allocated with one of the aligned page\r | |
411 | allocation functions in the Memory Allocation Library.\r | |
412 | \r | |
413 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
414 | must have been allocated on a previous call to the aligned page allocation services of the Memory\r | |
d1102dba | 415 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
1439c255 | 416 | perform no actions.\r |
d1102dba | 417 | \r |
1439c255 SZ |
418 | If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r |
419 | Library, then ASSERT().\r | |
420 | If Pages is zero, then ASSERT().\r | |
d1102dba | 421 | \r |
1439c255 SZ |
422 | @param Buffer The pointer to the buffer of pages to free.\r |
423 | @param Pages The number of 4 KB pages to free.\r | |
424 | \r | |
425 | **/\r | |
426 | VOID\r | |
427 | EFIAPI\r | |
428 | FreeAlignedPages (\r | |
429 | IN VOID *Buffer,\r | |
430 | IN UINTN Pages\r | |
431 | )\r | |
432 | {\r | |
433 | EFI_STATUS Status;\r | |
434 | \r | |
435 | ASSERT (Pages != 0);\r | |
1436aea4 | 436 | Status = gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)Buffer, Pages);\r |
1439c255 SZ |
437 | ASSERT_EFI_ERROR (Status);\r |
438 | }\r | |
439 | \r | |
440 | /**\r | |
441 | Allocates a buffer of a certain pool type.\r | |
442 | \r | |
443 | Allocates the number bytes specified by AllocationSize of a certain pool type and returns a\r | |
444 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
445 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
446 | \r | |
447 | @param MemoryType The type of memory to allocate.\r | |
448 | @param AllocationSize The number of bytes to allocate.\r | |
449 | \r | |
450 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
451 | \r | |
452 | **/\r | |
453 | VOID *\r | |
454 | InternalAllocatePool (\r | |
d1102dba | 455 | IN EFI_MEMORY_TYPE MemoryType,\r |
1439c255 SZ |
456 | IN UINTN AllocationSize\r |
457 | )\r | |
458 | {\r | |
459 | EFI_STATUS Status;\r | |
460 | VOID *Memory;\r | |
461 | \r | |
462 | Status = gBS->AllocatePool (MemoryType, AllocationSize, &Memory);\r | |
463 | if (EFI_ERROR (Status)) {\r | |
464 | Memory = NULL;\r | |
465 | }\r | |
1436aea4 | 466 | \r |
1439c255 SZ |
467 | return Memory;\r |
468 | }\r | |
469 | \r | |
470 | /**\r | |
471 | Allocates a buffer of type EfiBootServicesData.\r | |
472 | \r | |
473 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r | |
474 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
475 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
476 | \r | |
477 | @param AllocationSize The number of bytes to allocate.\r | |
478 | \r | |
479 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
480 | \r | |
481 | **/\r | |
482 | VOID *\r | |
483 | EFIAPI\r | |
484 | AllocatePool (\r | |
485 | IN UINTN AllocationSize\r | |
486 | )\r | |
487 | {\r | |
488 | VOID *Buffer;\r | |
489 | \r | |
490 | Buffer = InternalAllocatePool (EfiBootServicesData, AllocationSize);\r | |
491 | if (Buffer != NULL) {\r | |
492 | MemoryProfileLibRecord (\r | |
1436aea4 | 493 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
494 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_POOL,\r |
495 | EfiBootServicesData,\r | |
496 | Buffer,\r | |
497 | AllocationSize,\r | |
498 | NULL\r | |
499 | );\r | |
500 | }\r | |
1436aea4 | 501 | \r |
1439c255 SZ |
502 | return Buffer;\r |
503 | }\r | |
504 | \r | |
505 | /**\r | |
506 | Allocates a buffer of type EfiRuntimeServicesData.\r | |
507 | \r | |
508 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r | |
509 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
510 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
511 | \r | |
512 | @param AllocationSize The number of bytes to allocate.\r | |
513 | \r | |
514 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
515 | \r | |
516 | **/\r | |
517 | VOID *\r | |
518 | EFIAPI\r | |
519 | AllocateRuntimePool (\r | |
520 | IN UINTN AllocationSize\r | |
521 | )\r | |
522 | {\r | |
523 | VOID *Buffer;\r | |
524 | \r | |
525 | Buffer = InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r | |
526 | if (Buffer != NULL) {\r | |
527 | MemoryProfileLibRecord (\r | |
1436aea4 | 528 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
529 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_POOL,\r |
530 | EfiRuntimeServicesData,\r | |
531 | Buffer,\r | |
532 | AllocationSize,\r | |
533 | NULL\r | |
534 | );\r | |
535 | }\r | |
1436aea4 | 536 | \r |
1439c255 SZ |
537 | return Buffer;\r |
538 | }\r | |
539 | \r | |
540 | /**\r | |
541 | Allocates a buffer of type EfiReservedMemoryType.\r | |
542 | \r | |
543 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns\r | |
544 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
545 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
546 | \r | |
547 | @param AllocationSize The number of bytes to allocate.\r | |
548 | \r | |
549 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
550 | \r | |
551 | **/\r | |
552 | VOID *\r | |
553 | EFIAPI\r | |
554 | AllocateReservedPool (\r | |
555 | IN UINTN AllocationSize\r | |
556 | )\r | |
557 | {\r | |
558 | VOID *Buffer;\r | |
559 | \r | |
560 | Buffer = InternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r | |
561 | if (Buffer != NULL) {\r | |
562 | MemoryProfileLibRecord (\r | |
1436aea4 | 563 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
564 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_POOL,\r |
565 | EfiReservedMemoryType,\r | |
566 | Buffer,\r | |
567 | AllocationSize,\r | |
568 | NULL\r | |
569 | );\r | |
570 | }\r | |
1436aea4 | 571 | \r |
1439c255 SZ |
572 | return Buffer;\r |
573 | }\r | |
574 | \r | |
575 | /**\r | |
576 | Allocates and zeros a buffer of a certain pool type.\r | |
577 | \r | |
578 | Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer\r | |
579 | with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid\r | |
580 | buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,\r | |
581 | then NULL is returned.\r | |
582 | \r | |
583 | @param PoolType The type of memory to allocate.\r | |
584 | @param AllocationSize The number of bytes to allocate and zero.\r | |
585 | \r | |
586 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
587 | \r | |
588 | **/\r | |
589 | VOID *\r | |
590 | InternalAllocateZeroPool (\r | |
d1102dba | 591 | IN EFI_MEMORY_TYPE PoolType,\r |
1439c255 | 592 | IN UINTN AllocationSize\r |
d1102dba | 593 | )\r |
1439c255 SZ |
594 | {\r |
595 | VOID *Memory;\r | |
596 | \r | |
597 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
598 | if (Memory != NULL) {\r | |
599 | Memory = ZeroMem (Memory, AllocationSize);\r | |
600 | }\r | |
1436aea4 | 601 | \r |
1439c255 SZ |
602 | return Memory;\r |
603 | }\r | |
604 | \r | |
605 | /**\r | |
606 | Allocates and zeros a buffer of type EfiBootServicesData.\r | |
607 | \r | |
608 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r | |
609 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
610 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
611 | request, then NULL is returned.\r | |
612 | \r | |
613 | @param AllocationSize The number of bytes to allocate and zero.\r | |
614 | \r | |
615 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
616 | \r | |
617 | **/\r | |
618 | VOID *\r | |
619 | EFIAPI\r | |
620 | AllocateZeroPool (\r | |
621 | IN UINTN AllocationSize\r | |
622 | )\r | |
623 | {\r | |
624 | VOID *Buffer;\r | |
625 | \r | |
626 | Buffer = InternalAllocateZeroPool (EfiBootServicesData, AllocationSize);\r | |
627 | if (Buffer != NULL) {\r | |
628 | MemoryProfileLibRecord (\r | |
1436aea4 | 629 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
630 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_ZERO_POOL,\r |
631 | EfiBootServicesData,\r | |
632 | Buffer,\r | |
633 | AllocationSize,\r | |
634 | NULL\r | |
635 | );\r | |
636 | }\r | |
1436aea4 | 637 | \r |
1439c255 SZ |
638 | return Buffer;\r |
639 | }\r | |
640 | \r | |
641 | /**\r | |
642 | Allocates and zeros a buffer of type EfiRuntimeServicesData.\r | |
643 | \r | |
644 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r | |
645 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
646 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
647 | request, then NULL is returned.\r | |
648 | \r | |
649 | @param AllocationSize The number of bytes to allocate and zero.\r | |
650 | \r | |
651 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
652 | \r | |
653 | **/\r | |
654 | VOID *\r | |
655 | EFIAPI\r | |
656 | AllocateRuntimeZeroPool (\r | |
657 | IN UINTN AllocationSize\r | |
658 | )\r | |
659 | {\r | |
660 | VOID *Buffer;\r | |
661 | \r | |
662 | Buffer = InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r | |
663 | if (Buffer != NULL) {\r | |
664 | MemoryProfileLibRecord (\r | |
1436aea4 | 665 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
666 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_ZERO_POOL,\r |
667 | EfiRuntimeServicesData,\r | |
668 | Buffer,\r | |
669 | AllocationSize,\r | |
670 | NULL\r | |
671 | );\r | |
672 | }\r | |
1436aea4 | 673 | \r |
1439c255 SZ |
674 | return Buffer;\r |
675 | }\r | |
676 | \r | |
677 | /**\r | |
678 | Allocates and zeros a buffer of type EfiReservedMemoryType.\r | |
679 | \r | |
680 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r | |
681 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
682 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
683 | request, then NULL is returned.\r | |
684 | \r | |
685 | @param AllocationSize The number of bytes to allocate and zero.\r | |
686 | \r | |
687 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
688 | \r | |
689 | **/\r | |
690 | VOID *\r | |
691 | EFIAPI\r | |
692 | AllocateReservedZeroPool (\r | |
693 | IN UINTN AllocationSize\r | |
694 | )\r | |
695 | {\r | |
696 | VOID *Buffer;\r | |
697 | \r | |
698 | Buffer = InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r | |
699 | if (Buffer != NULL) {\r | |
700 | MemoryProfileLibRecord (\r | |
1436aea4 | 701 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
702 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_ZERO_POOL,\r |
703 | EfiReservedMemoryType,\r | |
704 | Buffer,\r | |
705 | AllocationSize,\r | |
706 | NULL\r | |
707 | );\r | |
708 | }\r | |
1436aea4 | 709 | \r |
1439c255 SZ |
710 | return Buffer;\r |
711 | }\r | |
712 | \r | |
713 | /**\r | |
714 | Copies a buffer to an allocated buffer of a certain pool type.\r | |
715 | \r | |
716 | Allocates the number bytes specified by AllocationSize of a certain pool type, copies\r | |
717 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
718 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
719 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
720 | If Buffer is NULL, then ASSERT().\r | |
d1102dba | 721 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
1439c255 SZ |
722 | \r |
723 | @param PoolType The type of pool to allocate.\r | |
724 | @param AllocationSize The number of bytes to allocate and zero.\r | |
725 | @param Buffer The buffer to copy to the allocated buffer.\r | |
726 | \r | |
727 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
728 | \r | |
729 | **/\r | |
730 | VOID *\r | |
731 | InternalAllocateCopyPool (\r | |
d1102dba | 732 | IN EFI_MEMORY_TYPE PoolType,\r |
1439c255 SZ |
733 | IN UINTN AllocationSize,\r |
734 | IN CONST VOID *Buffer\r | |
d1102dba | 735 | )\r |
1439c255 SZ |
736 | {\r |
737 | VOID *Memory;\r | |
738 | \r | |
739 | ASSERT (Buffer != NULL);\r | |
1436aea4 | 740 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN)Buffer + 1));\r |
1439c255 SZ |
741 | \r |
742 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
743 | if (Memory != NULL) {\r | |
1436aea4 | 744 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r |
1439c255 | 745 | }\r |
1436aea4 | 746 | \r |
1439c255 | 747 | return Memory;\r |
d1102dba | 748 | }\r |
1439c255 SZ |
749 | \r |
750 | /**\r | |
751 | Copies a buffer to an allocated buffer of type EfiBootServicesData.\r | |
752 | \r | |
753 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r | |
754 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
755 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
756 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 757 | \r |
1439c255 | 758 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 759 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
1439c255 SZ |
760 | \r |
761 | @param AllocationSize The number of bytes to allocate and zero.\r | |
762 | @param Buffer The buffer to copy to the allocated buffer.\r | |
763 | \r | |
764 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
765 | \r | |
766 | **/\r | |
767 | VOID *\r | |
768 | EFIAPI\r | |
769 | AllocateCopyPool (\r | |
770 | IN UINTN AllocationSize,\r | |
771 | IN CONST VOID *Buffer\r | |
772 | )\r | |
773 | {\r | |
774 | VOID *NewBuffer;\r | |
775 | \r | |
776 | NewBuffer = InternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);\r | |
777 | if (NewBuffer != NULL) {\r | |
778 | MemoryProfileLibRecord (\r | |
1436aea4 | 779 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
780 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_COPY_POOL,\r |
781 | EfiBootServicesData,\r | |
782 | NewBuffer,\r | |
783 | AllocationSize,\r | |
784 | NULL\r | |
785 | );\r | |
786 | }\r | |
1436aea4 | 787 | \r |
1439c255 SZ |
788 | return NewBuffer;\r |
789 | }\r | |
790 | \r | |
791 | /**\r | |
792 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r | |
793 | \r | |
794 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r | |
795 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
796 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
797 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 798 | \r |
1439c255 | 799 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 800 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
1439c255 SZ |
801 | \r |
802 | @param AllocationSize The number of bytes to allocate and zero.\r | |
803 | @param Buffer The buffer to copy to the allocated buffer.\r | |
804 | \r | |
805 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
806 | \r | |
807 | **/\r | |
808 | VOID *\r | |
809 | EFIAPI\r | |
810 | AllocateRuntimeCopyPool (\r | |
811 | IN UINTN AllocationSize,\r | |
812 | IN CONST VOID *Buffer\r | |
813 | )\r | |
814 | {\r | |
815 | VOID *NewBuffer;\r | |
816 | \r | |
817 | NewBuffer = InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r | |
818 | if (NewBuffer != NULL) {\r | |
819 | MemoryProfileLibRecord (\r | |
1436aea4 | 820 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
821 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RUNTIME_COPY_POOL,\r |
822 | EfiRuntimeServicesData,\r | |
823 | NewBuffer,\r | |
824 | AllocationSize,\r | |
825 | NULL\r | |
826 | );\r | |
827 | }\r | |
1436aea4 | 828 | \r |
1439c255 SZ |
829 | return NewBuffer;\r |
830 | }\r | |
831 | \r | |
832 | /**\r | |
833 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r | |
834 | \r | |
835 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r | |
836 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
837 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
838 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
d1102dba | 839 | \r |
1439c255 | 840 | If Buffer is NULL, then ASSERT().\r |
d1102dba | 841 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
1439c255 SZ |
842 | \r |
843 | @param AllocationSize The number of bytes to allocate and zero.\r | |
844 | @param Buffer The buffer to copy to the allocated buffer.\r | |
845 | \r | |
846 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
847 | \r | |
848 | **/\r | |
849 | VOID *\r | |
850 | EFIAPI\r | |
851 | AllocateReservedCopyPool (\r | |
852 | IN UINTN AllocationSize,\r | |
853 | IN CONST VOID *Buffer\r | |
854 | )\r | |
855 | {\r | |
856 | VOID *NewBuffer;\r | |
857 | \r | |
858 | NewBuffer = InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r | |
859 | if (NewBuffer != NULL) {\r | |
860 | MemoryProfileLibRecord (\r | |
1436aea4 | 861 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
862 | MEMORY_PROFILE_ACTION_LIB_ALLOCATE_RESERVED_COPY_POOL,\r |
863 | EfiRuntimeServicesData,\r | |
864 | NewBuffer,\r | |
865 | AllocationSize,\r | |
866 | NULL\r | |
867 | );\r | |
868 | }\r | |
1436aea4 | 869 | \r |
1439c255 SZ |
870 | return NewBuffer;\r |
871 | }\r | |
872 | \r | |
873 | /**\r | |
874 | Reallocates a buffer of a specified memory type.\r | |
875 | \r | |
876 | Allocates and zeros the number bytes specified by NewSize from memory of the type\r | |
d1102dba LG |
877 | specified by PoolType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
878 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
879 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
880 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
1439c255 | 881 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 882 | \r |
1439c255 SZ |
883 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
884 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
885 | \r | |
886 | @param PoolType The type of pool to allocate.\r | |
887 | @param OldSize The size, in bytes, of OldBuffer.\r | |
888 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 889 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
1439c255 SZ |
890 | parameter that may be NULL.\r |
891 | \r | |
892 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
893 | \r | |
894 | **/\r | |
895 | VOID *\r | |
896 | InternalReallocatePool (\r | |
d1102dba | 897 | IN EFI_MEMORY_TYPE PoolType,\r |
1439c255 SZ |
898 | IN UINTN OldSize,\r |
899 | IN UINTN NewSize,\r | |
900 | IN VOID *OldBuffer OPTIONAL\r | |
901 | )\r | |
902 | {\r | |
903 | VOID *NewBuffer;\r | |
904 | \r | |
905 | NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);\r | |
1436aea4 | 906 | if ((NewBuffer != NULL) && (OldBuffer != NULL)) {\r |
1439c255 SZ |
907 | CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));\r |
908 | FreePool (OldBuffer);\r | |
909 | }\r | |
1436aea4 | 910 | \r |
1439c255 SZ |
911 | return NewBuffer;\r |
912 | }\r | |
913 | \r | |
914 | /**\r | |
915 | Reallocates a buffer of type EfiBootServicesData.\r | |
916 | \r | |
917 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
918 | EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
919 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
920 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
921 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
1439c255 | 922 | enough memory remaining to satisfy the request, then NULL is returned.\r |
d1102dba | 923 | \r |
1439c255 SZ |
924 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
925 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
926 | \r | |
927 | @param OldSize The size, in bytes, of OldBuffer.\r | |
928 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 929 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
1439c255 SZ |
930 | parameter that may be NULL.\r |
931 | \r | |
932 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
933 | \r | |
934 | **/\r | |
935 | VOID *\r | |
936 | EFIAPI\r | |
937 | ReallocatePool (\r | |
938 | IN UINTN OldSize,\r | |
939 | IN UINTN NewSize,\r | |
940 | IN VOID *OldBuffer OPTIONAL\r | |
941 | )\r | |
942 | {\r | |
943 | VOID *Buffer;\r | |
944 | \r | |
945 | Buffer = InternalReallocatePool (EfiBootServicesData, OldSize, NewSize, OldBuffer);\r | |
946 | if (Buffer != NULL) {\r | |
947 | MemoryProfileLibRecord (\r | |
1436aea4 | 948 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
949 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_POOL,\r |
950 | EfiBootServicesData,\r | |
951 | Buffer,\r | |
952 | NewSize,\r | |
953 | NULL\r | |
954 | );\r | |
955 | }\r | |
1436aea4 | 956 | \r |
1439c255 SZ |
957 | return Buffer;\r |
958 | }\r | |
959 | \r | |
960 | /**\r | |
961 | Reallocates a buffer of type EfiRuntimeServicesData.\r | |
962 | \r | |
963 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
964 | EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
965 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
966 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
967 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
1439c255 SZ |
968 | enough memory remaining to satisfy the request, then NULL is returned.\r |
969 | \r | |
970 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r | |
971 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
972 | \r | |
973 | @param OldSize The size, in bytes, of OldBuffer.\r | |
974 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 975 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
1439c255 SZ |
976 | parameter that may be NULL.\r |
977 | \r | |
978 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
979 | \r | |
980 | **/\r | |
981 | VOID *\r | |
982 | EFIAPI\r | |
983 | ReallocateRuntimePool (\r | |
984 | IN UINTN OldSize,\r | |
985 | IN UINTN NewSize,\r | |
986 | IN VOID *OldBuffer OPTIONAL\r | |
987 | )\r | |
988 | {\r | |
989 | VOID *Buffer;\r | |
990 | \r | |
991 | Buffer = InternalReallocatePool (EfiRuntimeServicesData, OldSize, NewSize, OldBuffer);\r | |
992 | if (Buffer != NULL) {\r | |
993 | MemoryProfileLibRecord (\r | |
1436aea4 | 994 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
995 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RUNTIME_POOL,\r |
996 | EfiRuntimeServicesData,\r | |
997 | Buffer,\r | |
998 | NewSize,\r | |
999 | NULL\r | |
1000 | );\r | |
1001 | }\r | |
1436aea4 | 1002 | \r |
1439c255 SZ |
1003 | return Buffer;\r |
1004 | }\r | |
1005 | \r | |
1006 | /**\r | |
1007 | Reallocates a buffer of type EfiReservedMemoryType.\r | |
1008 | \r | |
1009 | Allocates and zeros the number bytes specified by NewSize from memory of type\r | |
d1102dba LG |
1010 | EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
1011 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
1012 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
1013 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
1439c255 SZ |
1014 | enough memory remaining to satisfy the request, then NULL is returned.\r |
1015 | \r | |
1016 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r | |
1017 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
1018 | \r | |
1019 | @param OldSize The size, in bytes, of OldBuffer.\r | |
1020 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
d1102dba | 1021 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
1439c255 SZ |
1022 | parameter that may be NULL.\r |
1023 | \r | |
1024 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
1025 | \r | |
1026 | **/\r | |
1027 | VOID *\r | |
1028 | EFIAPI\r | |
1029 | ReallocateReservedPool (\r | |
1030 | IN UINTN OldSize,\r | |
1031 | IN UINTN NewSize,\r | |
1032 | IN VOID *OldBuffer OPTIONAL\r | |
1033 | )\r | |
1034 | {\r | |
1035 | VOID *Buffer;\r | |
1036 | \r | |
1037 | Buffer = InternalReallocatePool (EfiReservedMemoryType, OldSize, NewSize, OldBuffer);\r | |
1038 | if (Buffer != NULL) {\r | |
1039 | MemoryProfileLibRecord (\r | |
1436aea4 | 1040 | (PHYSICAL_ADDRESS)(UINTN)RETURN_ADDRESS (0),\r |
1439c255 SZ |
1041 | MEMORY_PROFILE_ACTION_LIB_REALLOCATE_RESERVED_POOL,\r |
1042 | EfiReservedMemoryType,\r | |
1043 | Buffer,\r | |
1044 | NewSize,\r | |
1045 | NULL\r | |
1046 | );\r | |
1047 | }\r | |
1436aea4 | 1048 | \r |
1439c255 SZ |
1049 | return Buffer;\r |
1050 | }\r | |
1051 | \r | |
1052 | /**\r | |
1053 | Frees a buffer that was previously allocated with one of the pool allocation functions in the\r | |
1054 | Memory Allocation Library.\r | |
1055 | \r | |
1056 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
1057 | pool allocation services of the Memory Allocation Library. If it is not possible to free pool\r | |
1058 | resources, then this function will perform no actions.\r | |
d1102dba | 1059 | \r |
1439c255 SZ |
1060 | If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r |
1061 | then ASSERT().\r | |
1062 | \r | |
1063 | @param Buffer The pointer to the buffer to free.\r | |
1064 | \r | |
1065 | **/\r | |
1066 | VOID\r | |
1067 | EFIAPI\r | |
1068 | FreePool (\r | |
1436aea4 | 1069 | IN VOID *Buffer\r |
1439c255 SZ |
1070 | )\r |
1071 | {\r | |
1436aea4 | 1072 | EFI_STATUS Status;\r |
1439c255 SZ |
1073 | \r |
1074 | Status = gBS->FreePool (Buffer);\r | |
1075 | ASSERT_EFI_ERROR (Status);\r | |
1076 | }\r |