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fb3df220 | 1 | /** @file\r |
50a64e5b | 2 | Provides services to allocate and free memory buffers of various memory types and alignments.\r |
9095d37b LG |
3 | \r |
4 | The Memory Allocation Library abstracts various common memory allocation operations. This library\r | |
5 | allows code to be written in a phase-independent manner because the allocation of memory in PEI, DXE,\r | |
6 | and SMM (for example) is done via a different mechanism. Using a common library interface makes it\r | |
7 | much easier to port algorithms from phase to phase.\r | |
8 | \r | |
9 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
9344f092 | 10 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
fb3df220 | 11 | \r |
fb3df220 | 12 | **/\r |
13 | \r | |
14 | #ifndef __MEMORY_ALLOCATION_LIB_H__\r | |
15 | #define __MEMORY_ALLOCATION_LIB_H__\r | |
16 | \r | |
17 | /**\r | |
18 | Allocates one or more 4KB pages of type EfiBootServicesData.\r | |
19 | \r | |
20 | Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r | |
21 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
22 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
23 | returned.\r | |
24 | \r | |
25 | @param Pages The number of 4 KB pages to allocate.\r | |
26 | \r | |
27 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
28 | \r | |
29 | **/\r | |
30 | VOID *\r | |
31 | EFIAPI\r | |
32 | AllocatePages (\r | |
33 | IN UINTN Pages\r | |
34 | );\r | |
35 | \r | |
36 | /**\r | |
37 | Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r | |
38 | \r | |
39 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
40 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
41 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
42 | returned.\r | |
43 | \r | |
44 | @param Pages The number of 4 KB pages to allocate.\r | |
45 | \r | |
46 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
47 | \r | |
48 | **/\r | |
49 | VOID *\r | |
50 | EFIAPI\r | |
51 | AllocateRuntimePages (\r | |
52 | IN UINTN Pages\r | |
53 | );\r | |
54 | \r | |
55 | /**\r | |
56 | Allocates one or more 4KB pages of type EfiReservedMemoryType.\r | |
57 | \r | |
58 | Allocates the number of 4KB pages of type EfiReservedMemoryType 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 | AllocateReservedPages (\r | |
71 | IN UINTN Pages\r | |
72 | );\r | |
73 | \r | |
74 | /**\r | |
75 | Frees one or more 4KB pages that were previously allocated with one of the page allocation\r | |
76 | functions in the Memory Allocation Library.\r | |
77 | \r | |
78 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
79 | must have been allocated on a previous call to the page allocation services of the Memory\r | |
6e10b70a | 80 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 81 | perform no actions.\r |
9095d37b | 82 | \r |
fb3df220 | 83 | If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r |
84 | then ASSERT().\r | |
85 | If Pages is zero, then ASSERT().\r | |
9095d37b | 86 | \r |
fb3df220 | 87 | @param Buffer Pointer to the buffer of pages to free.\r |
88 | @param Pages The number of 4 KB pages to free.\r | |
89 | \r | |
90 | **/\r | |
91 | VOID\r | |
92 | EFIAPI\r | |
93 | FreePages (\r | |
94 | IN VOID *Buffer,\r | |
95 | IN UINTN Pages\r | |
96 | );\r | |
97 | \r | |
98 | /**\r | |
99 | Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r | |
100 | \r | |
101 | Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r | |
102 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
103 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
104 | request, then NULL is returned.\r | |
9095d37b | 105 | \r |
fb3df220 | 106 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
1346352d | 107 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
fb3df220 | 108 | \r |
109 | @param Pages The number of 4 KB pages to allocate.\r | |
110 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
111 | If Alignment is zero, then byte alignment is used.\r | |
112 | \r | |
113 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
114 | \r | |
115 | **/\r | |
116 | VOID *\r | |
117 | EFIAPI\r | |
118 | AllocateAlignedPages (\r | |
119 | IN UINTN Pages,\r | |
120 | IN UINTN Alignment\r | |
121 | );\r | |
122 | \r | |
123 | /**\r | |
124 | Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r | |
125 | \r | |
126 | Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r | |
127 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
128 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
129 | request, then NULL is returned.\r | |
9095d37b | 130 | \r |
fb3df220 | 131 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
1346352d | 132 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
fb3df220 | 133 | \r |
134 | @param Pages The number of 4 KB pages to allocate.\r | |
135 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
136 | If Alignment is zero, then byte alignment is used.\r | |
137 | \r | |
138 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
139 | \r | |
140 | **/\r | |
141 | VOID *\r | |
142 | EFIAPI\r | |
143 | AllocateAlignedRuntimePages (\r | |
144 | IN UINTN Pages,\r | |
145 | IN UINTN Alignment\r | |
146 | );\r | |
147 | \r | |
148 | /**\r | |
149 | Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r | |
150 | \r | |
151 | Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r | |
152 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
153 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
154 | request, then NULL is returned.\r | |
9095d37b | 155 | \r |
fb3df220 | 156 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r |
1346352d | 157 | If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r |
fb3df220 | 158 | \r |
159 | @param Pages The number of 4 KB pages to allocate.\r | |
160 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
161 | If Alignment is zero, then byte alignment is used.\r | |
162 | \r | |
163 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
164 | \r | |
165 | **/\r | |
166 | VOID *\r | |
167 | EFIAPI\r | |
168 | AllocateAlignedReservedPages (\r | |
169 | IN UINTN Pages,\r | |
170 | IN UINTN Alignment\r | |
171 | );\r | |
172 | \r | |
173 | /**\r | |
174 | Frees one or more 4KB pages that were previously allocated with one of the aligned page\r | |
175 | allocation functions in the Memory Allocation Library.\r | |
176 | \r | |
177 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
178 | must have been allocated on a previous call to the aligned page allocation services of the Memory\r | |
9095d37b | 179 | Allocation Library. If it is not possible to free allocated pages, then this function will\r |
446b94b0 | 180 | perform no actions.\r |
9095d37b | 181 | \r |
fb3df220 | 182 | If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r |
183 | Library, then ASSERT().\r | |
184 | If Pages is zero, then ASSERT().\r | |
9095d37b | 185 | \r |
fb3df220 | 186 | @param Buffer Pointer to the buffer of pages to free.\r |
187 | @param Pages The number of 4 KB pages to free.\r | |
188 | \r | |
189 | **/\r | |
190 | VOID\r | |
191 | EFIAPI\r | |
192 | FreeAlignedPages (\r | |
193 | IN VOID *Buffer,\r | |
194 | IN UINTN Pages\r | |
195 | );\r | |
196 | \r | |
197 | /**\r | |
198 | Allocates a buffer of type EfiBootServicesData.\r | |
199 | \r | |
200 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r | |
201 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
202 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
203 | \r | |
204 | @param AllocationSize The number of bytes to allocate.\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 | EFIAPI\r | |
211 | AllocatePool (\r | |
212 | IN UINTN AllocationSize\r | |
213 | );\r | |
214 | \r | |
215 | /**\r | |
216 | Allocates a buffer of type EfiRuntimeServicesData.\r | |
217 | \r | |
218 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r | |
219 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
220 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
221 | \r | |
222 | @param AllocationSize The number of bytes to allocate.\r | |
223 | \r | |
224 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
225 | \r | |
226 | **/\r | |
227 | VOID *\r | |
228 | EFIAPI\r | |
229 | AllocateRuntimePool (\r | |
230 | IN UINTN AllocationSize\r | |
231 | );\r | |
232 | \r | |
233 | /**\r | |
8789c5e0 | 234 | Allocates a buffer of type EfiReservedMemoryType.\r |
fb3df220 | 235 | \r |
8789c5e0 | 236 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns\r |
fb3df220 | 237 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r |
238 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
239 | \r | |
240 | @param AllocationSize The number of bytes to allocate.\r | |
241 | \r | |
242 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
243 | \r | |
244 | **/\r | |
245 | VOID *\r | |
246 | EFIAPI\r | |
247 | AllocateReservedPool (\r | |
248 | IN UINTN AllocationSize\r | |
249 | );\r | |
250 | \r | |
251 | /**\r | |
252 | Allocates and zeros a buffer of type EfiBootServicesData.\r | |
253 | \r | |
254 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r | |
255 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
256 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
257 | request, then NULL is returned.\r | |
258 | \r | |
259 | @param AllocationSize The number of bytes to allocate and zero.\r | |
260 | \r | |
261 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
262 | \r | |
263 | **/\r | |
264 | VOID *\r | |
265 | EFIAPI\r | |
266 | AllocateZeroPool (\r | |
267 | IN UINTN AllocationSize\r | |
268 | );\r | |
269 | \r | |
270 | /**\r | |
271 | Allocates and zeros a buffer of type EfiRuntimeServicesData.\r | |
272 | \r | |
273 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r | |
274 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
275 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
276 | request, then NULL is returned.\r | |
277 | \r | |
278 | @param AllocationSize The number of bytes to allocate and zero.\r | |
279 | \r | |
280 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
281 | \r | |
282 | **/\r | |
283 | VOID *\r | |
284 | EFIAPI\r | |
285 | AllocateRuntimeZeroPool (\r | |
286 | IN UINTN AllocationSize\r | |
287 | );\r | |
288 | \r | |
289 | /**\r | |
290 | Allocates and zeros a buffer of type EfiReservedMemoryType.\r | |
291 | \r | |
292 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r | |
293 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
294 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
295 | request, then NULL is returned.\r | |
296 | \r | |
297 | @param AllocationSize The number of bytes to allocate and zero.\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 | AllocateReservedZeroPool (\r | |
305 | IN UINTN AllocationSize\r | |
306 | );\r | |
307 | \r | |
308 | /**\r | |
309 | Copies a buffer to an allocated buffer of type EfiBootServicesData.\r | |
310 | \r | |
311 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r | |
312 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
313 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
314 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
9095d37b | 315 | \r |
fb3df220 | 316 | If Buffer is NULL, then ASSERT().\r |
9095d37b | 317 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 318 | \r |
319 | @param AllocationSize The number of bytes to allocate and zero.\r | |
320 | @param Buffer The buffer to copy to the allocated buffer.\r | |
321 | \r | |
322 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
323 | \r | |
324 | **/\r | |
325 | VOID *\r | |
326 | EFIAPI\r | |
327 | AllocateCopyPool (\r | |
328 | IN UINTN AllocationSize,\r | |
329 | IN CONST VOID *Buffer\r | |
330 | );\r | |
331 | \r | |
332 | /**\r | |
333 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r | |
334 | \r | |
335 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r | |
336 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
337 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
338 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
9095d37b | 339 | \r |
fb3df220 | 340 | If Buffer is NULL, then ASSERT().\r |
9095d37b | 341 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 342 | \r |
343 | @param AllocationSize The number of bytes to allocate and zero.\r | |
344 | @param Buffer The buffer to copy to the allocated buffer.\r | |
345 | \r | |
346 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
347 | \r | |
348 | **/\r | |
349 | VOID *\r | |
350 | EFIAPI\r | |
351 | AllocateRuntimeCopyPool (\r | |
352 | IN UINTN AllocationSize,\r | |
353 | IN CONST VOID *Buffer\r | |
354 | );\r | |
355 | \r | |
356 | /**\r | |
357 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r | |
358 | \r | |
359 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r | |
360 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
361 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
362 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
9095d37b | 363 | \r |
fb3df220 | 364 | If Buffer is NULL, then ASSERT().\r |
9095d37b | 365 | If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 366 | \r |
367 | @param AllocationSize The number of bytes to allocate and zero.\r | |
368 | @param Buffer The buffer to copy to the allocated buffer.\r | |
369 | \r | |
370 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
371 | \r | |
372 | **/\r | |
373 | VOID *\r | |
374 | EFIAPI\r | |
375 | AllocateReservedCopyPool (\r | |
376 | IN UINTN AllocationSize,\r | |
377 | IN CONST VOID *Buffer\r | |
378 | );\r | |
379 | \r | |
c2390431 | 380 | /**\r |
381 | Reallocates a buffer of type EfiBootServicesData.\r | |
382 | \r | |
ab95d5f2 | 383 | Allocates and zeros the number bytes specified by NewSize from memory of type\r |
9095d37b LG |
384 | EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
385 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
386 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
387 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
c2390431 | 388 | enough memory remaining to satisfy the request, then NULL is returned.\r |
9095d37b | 389 | \r |
56304569 | 390 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
391 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
c2390431 | 392 | \r |
393 | @param OldSize The size, in bytes, of OldBuffer.\r | |
394 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
9095d37b | 395 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
c2390431 | 396 | parameter that may be NULL.\r |
397 | \r | |
398 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
399 | \r | |
400 | **/\r | |
401 | VOID *\r | |
402 | EFIAPI\r | |
403 | ReallocatePool (\r | |
404 | IN UINTN OldSize,\r | |
405 | IN UINTN NewSize,\r | |
406 | IN VOID *OldBuffer OPTIONAL\r | |
407 | );\r | |
408 | \r | |
409 | /**\r | |
410 | Reallocates a buffer of type EfiRuntimeServicesData.\r | |
411 | \r | |
ab95d5f2 | 412 | Allocates and zeros the number bytes specified by NewSize from memory of type\r |
9095d37b LG |
413 | EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r |
414 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
415 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
416 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
c2390431 | 417 | enough memory remaining to satisfy the request, then NULL is returned.\r |
2297186d | 418 | \r |
56304569 | 419 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
420 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
c2390431 | 421 | \r |
422 | @param OldSize The size, in bytes, of OldBuffer.\r | |
423 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
9095d37b | 424 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
c2390431 | 425 | parameter that may be NULL.\r |
426 | \r | |
427 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
428 | \r | |
429 | **/\r | |
430 | VOID *\r | |
431 | EFIAPI\r | |
432 | ReallocateRuntimePool (\r | |
433 | IN UINTN OldSize,\r | |
434 | IN UINTN NewSize,\r | |
435 | IN VOID *OldBuffer OPTIONAL\r | |
436 | );\r | |
437 | \r | |
438 | /**\r | |
439 | Reallocates a buffer of type EfiReservedMemoryType.\r | |
440 | \r | |
ab95d5f2 | 441 | Allocates and zeros the number bytes specified by NewSize from memory of type\r |
9095d37b LG |
442 | EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and\r |
443 | NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r | |
444 | OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r | |
445 | If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
c2390431 | 446 | enough memory remaining to satisfy the request, then NULL is returned.\r |
2297186d | 447 | \r |
56304569 | 448 | If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r |
449 | is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r | |
c2390431 | 450 | \r |
451 | @param OldSize The size, in bytes, of OldBuffer.\r | |
452 | @param NewSize The size, in bytes, of the buffer to reallocate.\r | |
9095d37b | 453 | @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r |
c2390431 | 454 | parameter that may be NULL.\r |
455 | \r | |
456 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
457 | \r | |
458 | **/\r | |
459 | VOID *\r | |
460 | EFIAPI\r | |
461 | ReallocateReservedPool (\r | |
462 | IN UINTN OldSize,\r | |
463 | IN UINTN NewSize,\r | |
464 | IN VOID *OldBuffer OPTIONAL\r | |
465 | );\r | |
466 | \r | |
fb3df220 | 467 | /**\r |
468 | Frees a buffer that was previously allocated with one of the pool allocation functions in the\r | |
469 | Memory Allocation Library.\r | |
470 | \r | |
471 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
6e10b70a | 472 | pool allocation services of the Memory Allocation Library. If it is not possible to free pool\r |
446b94b0 | 473 | resources, then this function will perform no actions.\r |
9095d37b | 474 | \r |
fb3df220 | 475 | If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r |
476 | then ASSERT().\r | |
477 | \r | |
478 | @param Buffer Pointer to the buffer to free.\r | |
479 | \r | |
480 | **/\r | |
481 | VOID\r | |
482 | EFIAPI\r | |
483 | FreePool (\r | |
484 | IN VOID *Buffer\r | |
485 | );\r | |
486 | \r | |
fb3df220 | 487 | #endif\r |