projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3eb9473e | 1 | /*++\r |
| 2 | \r | |
| 2c7e5c2f HT |
3 | Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>\r |
| 4 | This program and the accompanying materials \r | |
| 3eb9473e | 5 | are licensed and made available under the terms and conditions of the BSD License \r |
| 6 | which accompanies this distribution. The full text of the license may be found at \r | |
| 7 | http://opensource.org/licenses/bsd-license.php \r | |
| 8 | \r | |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 11 | \r | |
| 12 | \r | |
| 13 | Module Name:\r | |
| 14 | \r | |
| 15 | MemoryAllocationLib.c\r | |
| 16 | \r | |
| 17 | Abstract: \r | |
| 18 | \r | |
| 19 | Support routines for memory allocation routines for use with drivers.\r | |
| 20 | \r | |
| 21 | --*/\r | |
| 22 | \r | |
| 23 | #include "EdkIIGluePeim.h"\r | |
| 24 | \r | |
| 25 | /**\r | |
| 26 | Allocates one or more 4KB pages of a certain memory type.\r | |
| 27 | \r | |
| 28 | Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated\r | |
| 29 | buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.\r | |
| 30 | If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 31 | \r | |
| 32 | @param MemoryType The type of memory to allocate.\r | |
| 33 | @param Pages The number of 4 KB pages to allocate.\r | |
| 34 | \r | |
| 35 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 36 | \r | |
| 37 | **/\r | |
| 38 | VOID *\r | |
| 39 | InternalAllocatePages (\r | |
| 40 | IN EFI_MEMORY_TYPE MemoryType, \r | |
| 41 | IN UINTN Pages\r | |
| 42 | )\r | |
| 43 | {\r | |
| 44 | EFI_STATUS Status;\r | |
| 45 | EFI_PHYSICAL_ADDRESS Memory; \r | |
| 3eb9473e | 46 | \r |
| 47 | if (Pages == 0) {\r | |
| 48 | return NULL;\r | |
| 49 | }\r | |
| 50 | \r | |
| bfe03264 | 51 | Status = PeiServicesAllocatePages (MemoryType, Pages, &Memory);\r |
| 3eb9473e | 52 | if (EFI_ERROR (Status)) {\r |
| 53 | Memory = 0;\r | |
| 54 | }\r | |
| 55 | return (VOID *) (UINTN) Memory;\r | |
| 56 | }\r | |
| 57 | \r | |
| 58 | /**\r | |
| 59 | Allocates one or more 4KB pages of type EfiBootServicesData.\r | |
| 60 | \r | |
| 61 | Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r | |
| 62 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
| 63 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
| 64 | returned.\r | |
| 65 | \r | |
| 66 | @param Pages The number of 4 KB pages to allocate.\r | |
| 67 | \r | |
| 68 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 69 | \r | |
| 70 | **/\r | |
| 71 | VOID *\r | |
| 72 | EFIAPI\r | |
| 73 | GlueAllocatePages (\r | |
| 74 | IN UINTN Pages\r | |
| 75 | )\r | |
| 76 | {\r | |
| 77 | return InternalAllocatePages (EfiBootServicesData, Pages);\r | |
| 78 | }\r | |
| 79 | \r | |
| 80 | /**\r | |
| 81 | Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r | |
| 82 | \r | |
| 83 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
| 84 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
| 85 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
| 86 | returned.\r | |
| 87 | \r | |
| 88 | @param Pages The number of 4 KB pages to allocate.\r | |
| 89 | \r | |
| 90 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 91 | \r | |
| 92 | **/\r | |
| 93 | VOID *\r | |
| 94 | EFIAPI\r | |
| 95 | AllocateRuntimePages (\r | |
| 96 | IN UINTN Pages\r | |
| 97 | )\r | |
| 98 | {\r | |
| 99 | return InternalAllocatePages (EfiRuntimeServicesData, Pages);\r | |
| 100 | }\r | |
| 101 | \r | |
| 102 | /**\r | |
| 103 | Allocates one or more 4KB pages of type EfiReservedMemoryType.\r | |
| 104 | \r | |
| 105 | Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the\r | |
| 106 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
| 107 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
| 108 | returned.\r | |
| 109 | \r | |
| 110 | @param Pages The number of 4 KB pages to allocate.\r | |
| 111 | \r | |
| 112 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 113 | \r | |
| 114 | **/\r | |
| 115 | VOID *\r | |
| 116 | EFIAPI\r | |
| 117 | AllocateReservedPages (\r | |
| 118 | IN UINTN Pages\r | |
| 119 | )\r | |
| 120 | {\r | |
| 121 | return InternalAllocatePages (EfiReservedMemoryType, Pages);\r | |
| 122 | }\r | |
| 123 | \r | |
| 124 | /**\r | |
| 125 | Frees one or more 4KB pages that were previously allocated with one of the page allocation\r | |
| 126 | functions in the Memory Allocation Library.\r | |
| 127 | \r | |
| 128 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
| 129 | must have been allocated on a previous call to the page allocation services of the Memory\r | |
| 130 | Allocation Library.\r | |
| 131 | If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r | |
| 132 | then ASSERT().\r | |
| 133 | If Pages is zero, then ASSERT().\r | |
| 134 | \r | |
| 135 | @param Buffer Pointer to the buffer of pages to free.\r | |
| 136 | @param Pages The number of 4 KB pages to free.\r | |
| 137 | \r | |
| 138 | **/\r | |
| 139 | VOID\r | |
| 140 | EFIAPI\r | |
| 141 | GlueFreePages (\r | |
| 142 | IN VOID *Buffer,\r | |
| 143 | IN UINTN Pages\r | |
| 144 | )\r | |
| 145 | {\r | |
| 146 | //\r | |
| 147 | // PEI phase does not support to free pages, so leave it as NOP.\r | |
| 148 | //\r | |
| 149 | }\r | |
| 150 | \r | |
| 151 | /**\r | |
| 152 | Allocates one or more 4KB pages of a certain memory type at a specified alignment.\r | |
| 153 | \r | |
| 154 | Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment\r | |
| 155 | specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.\r | |
| 156 | If there is not enough memory at the specified alignment remaining to satisfy the request, then\r | |
| 157 | NULL is returned.\r | |
| 158 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 159 | \r | |
| 160 | @param MemoryType The type of memory to allocate.\r | |
| 161 | @param Pages The number of 4 KB pages to allocate.\r | |
| 162 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 163 | If Alignment is zero, then byte alignment is used.\r | |
| 164 | \r | |
| 165 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 166 | \r | |
| 167 | **/\r | |
| 168 | VOID *\r | |
| 169 | InternalAllocateAlignedPages (\r | |
| 170 | IN EFI_MEMORY_TYPE MemoryType, \r | |
| 171 | IN UINTN Pages,\r | |
| 172 | IN UINTN Alignment\r | |
| 173 | )\r | |
| 174 | {\r | |
| 175 | VOID *Memory;\r | |
| 176 | UINTN AlignmentMask;\r | |
| 177 | \r | |
| 178 | //\r | |
| 179 | // Alignment must be a power of two or zero.\r | |
| 180 | //\r | |
| 181 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
| 182 | \r | |
| 183 | if (Pages == 0) {\r | |
| 184 | return NULL;\r | |
| 185 | }\r | |
| 186 | //\r | |
| 187 | // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r | |
| 188 | //\r | |
| 189 | ASSERT (Pages <= (MAX_ADDRESS - EFI_SIZE_TO_PAGES (Alignment)));\r | |
| 190 | //\r | |
| 191 | // We would rather waste some memory to save PEI code size.\r | |
| 192 | //\r | |
| 193 | Memory = InternalAllocatePages (MemoryType, Pages + EFI_SIZE_TO_PAGES (Alignment));\r | |
| 194 | if (Alignment == 0) {\r | |
| 195 | AlignmentMask = Alignment;\r | |
| 196 | } else {\r | |
| 197 | AlignmentMask = Alignment - 1; \r | |
| 198 | }\r | |
| 199 | return (VOID *) (UINTN) (((UINTN) Memory + AlignmentMask) & ~AlignmentMask);\r | |
| 200 | }\r | |
| 201 | \r | |
| 202 | /**\r | |
| 203 | Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r | |
| 204 | \r | |
| 205 | Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r | |
| 206 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
| 207 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
| 208 | request, then NULL is returned.\r | |
| 209 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 210 | \r | |
| 211 | @param Pages The number of 4 KB pages to allocate.\r | |
| 212 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 213 | If Alignment is zero, then byte alignment is used.\r | |
| 214 | \r | |
| 215 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 216 | \r | |
| 217 | **/\r | |
| 218 | VOID *\r | |
| 219 | EFIAPI\r | |
| 220 | AllocateAlignedPages (\r | |
| 221 | IN UINTN Pages,\r | |
| 222 | IN UINTN Alignment\r | |
| 223 | )\r | |
| 224 | {\r | |
| 225 | return InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);\r | |
| 226 | }\r | |
| 227 | \r | |
| 228 | /**\r | |
| 229 | Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r | |
| 230 | \r | |
| 231 | Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r | |
| 232 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
| 233 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
| 234 | request, then NULL is returned.\r | |
| 235 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 236 | \r | |
| 237 | @param Pages The number of 4 KB pages to allocate.\r | |
| 238 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 239 | If Alignment is zero, then byte alignment is used.\r | |
| 240 | \r | |
| 241 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 242 | \r | |
| 243 | **/\r | |
| 244 | VOID *\r | |
| 245 | EFIAPI\r | |
| 246 | AllocateAlignedRuntimePages (\r | |
| 247 | IN UINTN Pages,\r | |
| 248 | IN UINTN Alignment\r | |
| 249 | )\r | |
| 250 | {\r | |
| 251 | return InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);\r | |
| 252 | }\r | |
| 253 | \r | |
| 254 | /**\r | |
| 255 | Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r | |
| 256 | \r | |
| 257 | Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r | |
| 258 | alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r | |
| 259 | returned. If there is not enough memory at the specified alignment remaining to satisfy the\r | |
| 260 | request, then NULL is returned.\r | |
| 261 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 262 | \r | |
| 263 | @param Pages The number of 4 KB pages to allocate.\r | |
| 264 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 265 | If Alignment is zero, then byte alignment is used.\r | |
| 266 | \r | |
| 267 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 268 | \r | |
| 269 | **/\r | |
| 270 | VOID *\r | |
| 271 | EFIAPI\r | |
| 272 | AllocateAlignedReservedPages (\r | |
| 273 | IN UINTN Pages,\r | |
| 274 | IN UINTN Alignment\r | |
| 275 | )\r | |
| 276 | {\r | |
| 277 | return InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);\r | |
| 278 | }\r | |
| 279 | \r | |
| 280 | /**\r | |
| 281 | Frees one or more 4KB pages that were previously allocated with one of the aligned page\r | |
| 282 | allocation functions in the Memory Allocation Library.\r | |
| 283 | \r | |
| 284 | Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r | |
| 285 | must have been allocated on a previous call to the aligned page allocation services of the Memory\r | |
| 286 | Allocation Library.\r | |
| 287 | If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r | |
| 288 | Library, then ASSERT().\r | |
| 289 | If Pages is zero, then ASSERT().\r | |
| 290 | \r | |
| 291 | @param Buffer Pointer to the buffer of pages to free.\r | |
| 292 | @param Pages The number of 4 KB pages to free.\r | |
| 293 | \r | |
| 294 | **/\r | |
| 295 | VOID\r | |
| 296 | EFIAPI\r | |
| 297 | FreeAlignedPages (\r | |
| 298 | IN VOID *Buffer,\r | |
| 299 | IN UINTN Pages\r | |
| 300 | )\r | |
| 301 | {\r | |
| 302 | //\r | |
| 303 | // PEI phase does not support to free pages, so leave it as NOP.\r | |
| 304 | //\r | |
| 305 | }\r | |
| 306 | \r | |
| 307 | /**\r | |
| 308 | Allocates a buffer of a certain pool type.\r | |
| 309 | \r | |
| 310 | Allocates the number bytes specified by AllocationSize of a certain pool type and returns a\r | |
| 311 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
| 312 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 313 | \r | |
| 314 | @param MemoryType The type of memory to allocate.\r | |
| 315 | @param AllocationSize The number of bytes to allocate.\r | |
| 316 | \r | |
| 317 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 318 | \r | |
| 319 | **/\r | |
| 320 | VOID *\r | |
| 321 | InternalAllocatePool (\r | |
| 322 | IN EFI_MEMORY_TYPE MemoryType, \r | |
| 323 | IN UINTN AllocationSize\r | |
| 324 | )\r | |
| 325 | {\r | |
| 326 | //\r | |
| 327 | // If we need lots of small runtime/reserved memory type from PEI in the future, \r | |
| 328 | // we can consider providing a more complex algorithm that allocates runtime pages and \r | |
| 329 | // provide pool allocations from those pages. \r | |
| 330 | //\r | |
| 331 | return InternalAllocatePages (MemoryType, EFI_SIZE_TO_PAGES (AllocationSize));\r | |
| 332 | }\r | |
| 333 | \r | |
| 334 | /**\r | |
| 335 | Allocates a buffer of type EfiBootServicesData.\r | |
| 336 | \r | |
| 337 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r | |
| 338 | pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
| 339 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 340 | \r | |
| 341 | @param AllocationSize The number of bytes to allocate.\r | |
| 342 | \r | |
| 343 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 344 | \r | |
| 345 | **/\r | |
| 346 | VOID *\r | |
| 347 | EFIAPI\r | |
| 348 | GlueAllocatePool (\r | |
| 349 | IN UINTN AllocationSize\r | |
| 350 | )\r | |
| 351 | {\r | |
| 352 | EFI_STATUS Status;\r | |
| 3eb9473e | 353 | VOID *Buffer;\r |
| 354 | \r | |
| bfe03264 | 355 | Status = PeiServicesAllocatePool (AllocationSize, &Buffer);\r |
| 3eb9473e | 356 | if (EFI_ERROR (Status)) {\r |
| 357 | Buffer = NULL;\r | |
| 358 | }\r | |
| 359 | return Buffer;\r | |
| 360 | }\r | |
| 361 | \r | |
| 362 | /**\r | |
| 363 | Allocates a buffer of type EfiRuntimeServicesData.\r | |
| 364 | \r | |
| 365 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r | |
| 366 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
| 367 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 368 | \r | |
| 369 | @param AllocationSize The number of bytes to allocate.\r | |
| 370 | \r | |
| 371 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 372 | \r | |
| 373 | **/\r | |
| 374 | VOID *\r | |
| 375 | EFIAPI\r | |
| 376 | AllocateRuntimePool (\r | |
| 377 | IN UINTN AllocationSize\r | |
| 378 | )\r | |
| 379 | {\r | |
| 380 | return InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r | |
| 381 | }\r | |
| 382 | \r | |
| 383 | /**\r | |
| 384 | Allocates a buffer of type EfieservedMemoryType.\r | |
| 385 | \r | |
| 386 | Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType and returns\r | |
| 387 | a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r | |
| 388 | returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 389 | \r | |
| 390 | @param AllocationSize The number of bytes to allocate.\r | |
| 391 | \r | |
| 392 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 393 | \r | |
| 394 | **/\r | |
| 395 | VOID *\r | |
| 396 | EFIAPI\r | |
| 397 | AllocateReservedPool (\r | |
| 398 | IN UINTN AllocationSize\r | |
| 399 | )\r | |
| 400 | {\r | |
| 401 | return InternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r | |
| 402 | }\r | |
| 403 | \r | |
| 404 | /**\r | |
| 405 | Allocates and zeros a buffer of a certian pool type.\r | |
| 406 | \r | |
| 407 | Allocates the number bytes specified by AllocationSize of a certian pool type, clears the buffer\r | |
| 408 | with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid\r | |
| 409 | buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,\r | |
| 410 | then NULL is returned.\r | |
| 411 | \r | |
| 412 | @param PoolType The type of memory to allocate.\r | |
| 413 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 414 | \r | |
| 415 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 416 | \r | |
| 417 | **/\r | |
| 418 | VOID *\r | |
| 419 | InternalAllocateZeroPool (\r | |
| 420 | IN EFI_MEMORY_TYPE PoolType, \r | |
| 421 | IN UINTN AllocationSize\r | |
| 422 | ) \r | |
| 423 | {\r | |
| 424 | VOID *Memory;\r | |
| 425 | \r | |
| 426 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
| 427 | if (Memory != NULL) {\r | |
| 428 | Memory = ZeroMem (Memory, AllocationSize);\r | |
| 429 | }\r | |
| 430 | return Memory;\r | |
| 431 | }\r | |
| 432 | \r | |
| 433 | /**\r | |
| 434 | Allocates and zeros a buffer of type EfiBootServicesData.\r | |
| 435 | \r | |
| 436 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r | |
| 437 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
| 438 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
| 439 | request, then NULL is returned.\r | |
| 440 | \r | |
| 441 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 442 | \r | |
| 443 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 444 | \r | |
| 445 | **/\r | |
| 446 | VOID *\r | |
| 447 | EFIAPI\r | |
| 448 | GlueAllocateZeroPool (\r | |
| 449 | IN UINTN AllocationSize\r | |
| 450 | )\r | |
| 451 | {\r | |
| 452 | VOID *Memory;\r | |
| 453 | \r | |
| 454 | Memory = AllocatePool (AllocationSize);\r | |
| 455 | if (Memory != NULL) {\r | |
| 456 | Memory = ZeroMem (Memory, AllocationSize);\r | |
| 457 | }\r | |
| 458 | return Memory;\r | |
| 459 | }\r | |
| 460 | \r | |
| 461 | /**\r | |
| 462 | Allocates and zeros a buffer of type EfiRuntimeServicesData.\r | |
| 463 | \r | |
| 464 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r | |
| 465 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
| 466 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
| 467 | request, then NULL is returned.\r | |
| 468 | \r | |
| 469 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 470 | \r | |
| 471 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 472 | \r | |
| 473 | **/\r | |
| 474 | VOID *\r | |
| 475 | EFIAPI\r | |
| 476 | AllocateRuntimeZeroPool (\r | |
| 477 | IN UINTN AllocationSize\r | |
| 478 | )\r | |
| 479 | {\r | |
| 480 | return InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r | |
| 481 | }\r | |
| 482 | \r | |
| 483 | /**\r | |
| 484 | Allocates and zeros a buffer of type EfiReservedMemoryType.\r | |
| 485 | \r | |
| 486 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r | |
| 487 | buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r | |
| 488 | valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r | |
| 489 | request, then NULL is returned.\r | |
| 490 | \r | |
| 491 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 492 | \r | |
| 493 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 494 | \r | |
| 495 | **/\r | |
| 496 | VOID *\r | |
| 497 | EFIAPI\r | |
| 498 | AllocateReservedZeroPool (\r | |
| 499 | IN UINTN AllocationSize\r | |
| 500 | )\r | |
| 501 | {\r | |
| 502 | return InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r | |
| 503 | }\r | |
| 504 | \r | |
| 505 | /**\r | |
| 506 | Copies a buffer to an allocated buffer of a certian pool type.\r | |
| 507 | \r | |
| 508 | Allocates the number bytes specified by AllocationSize of a certian pool type, copies\r | |
| 509 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
| 510 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 511 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 512 | If Buffer is NULL, then ASSERT().\r | |
| 513 | If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r | |
| 514 | \r | |
| 515 | @param PoolType The type of pool to allocate.\r | |
| 516 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 517 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 518 | \r | |
| 519 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 520 | \r | |
| 521 | **/\r | |
| 522 | VOID *\r | |
| 523 | InternalAllocateCopyPool (\r | |
| 524 | IN EFI_MEMORY_TYPE PoolType, \r | |
| 525 | IN UINTN AllocationSize,\r | |
| 526 | IN CONST VOID *Buffer\r | |
| 527 | ) \r | |
| 528 | {\r | |
| 529 | VOID *Memory;\r | |
| 530 | \r | |
| 531 | ASSERT (Buffer != NULL);\r | |
| 532 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
| 533 | \r | |
| 534 | Memory = InternalAllocatePool (PoolType, AllocationSize);\r | |
| 535 | if (Memory != NULL) {\r | |
| 536 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
| 537 | }\r | |
| 538 | return Memory;\r | |
| 539 | } \r | |
| 540 | \r | |
| 541 | /**\r | |
| 542 | Copies a buffer to an allocated buffer of type EfiBootServicesData.\r | |
| 543 | \r | |
| 544 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r | |
| 545 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
| 546 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 547 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 548 | If Buffer is NULL, then ASSERT().\r | |
| 549 | If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r | |
| 550 | \r | |
| 551 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 552 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 553 | \r | |
| 554 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 555 | \r | |
| 556 | **/\r | |
| 557 | VOID *\r | |
| 558 | EFIAPI\r | |
| 559 | GlueAllocateCopyPool (\r | |
| 560 | IN UINTN AllocationSize,\r | |
| 561 | IN CONST VOID *Buffer\r | |
| 562 | )\r | |
| 563 | {\r | |
| 564 | VOID *Memory;\r | |
| 565 | \r | |
| 566 | ASSERT (Buffer != NULL);\r | |
| 567 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
| 568 | \r | |
| 569 | Memory = AllocatePool (AllocationSize);\r | |
| 570 | if (Memory != NULL) {\r | |
| 571 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
| 572 | }\r | |
| 573 | return Memory;\r | |
| 574 | }\r | |
| 575 | \r | |
| 576 | /**\r | |
| 577 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r | |
| 578 | \r | |
| 579 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r | |
| 580 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
| 581 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 582 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 583 | If Buffer is NULL, then ASSERT().\r | |
| 584 | If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r | |
| 585 | \r | |
| 586 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 587 | @param Buffer The buffer to copy to the allocated buffer.\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 | EFIAPI\r | |
| 594 | AllocateRuntimeCopyPool (\r | |
| 595 | IN UINTN AllocationSize,\r | |
| 596 | IN CONST VOID *Buffer\r | |
| 597 | )\r | |
| 598 | {\r | |
| 599 | return InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r | |
| 600 | }\r | |
| 601 | \r | |
| 602 | /**\r | |
| 603 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r | |
| 604 | \r | |
| 605 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r | |
| 606 | AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r | |
| 607 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 608 | is not enough memory remaining to satisfy the request, then NULL is returned.\r | |
| 609 | If Buffer is NULL, then ASSERT().\r | |
| 610 | If AllocationSize is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r | |
| 611 | \r | |
| 612 | @param AllocationSize The number of bytes to allocate and zero.\r | |
| 613 | @param Buffer The buffer to copy to the allocated buffer.\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 | AllocateReservedCopyPool (\r | |
| 621 | IN UINTN AllocationSize,\r | |
| 622 | IN CONST VOID *Buffer\r | |
| 623 | )\r | |
| 624 | {\r | |
| 625 | return InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r | |
| 626 | }\r | |
| 627 | \r | |
| 628 | /**\r | |
| 629 | Frees a buffer that was previously allocated with one of the pool allocation functions in the\r | |
| 630 | Memory Allocation Library.\r | |
| 631 | \r | |
| 632 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
| 633 | pool allocation services of the Memory Allocation Library.\r | |
| 634 | If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r | |
| 635 | then ASSERT().\r | |
| 636 | \r | |
| 637 | @param Buffer Pointer to the buffer to free.\r | |
| 638 | \r | |
| 639 | **/\r | |
| 640 | VOID\r | |
| 641 | EFIAPI\r | |
| 642 | GlueFreePool (\r | |
| 643 | IN VOID *Buffer\r | |
| 644 | )\r | |
| 645 | {\r | |
| 646 | //\r | |
| 647 | // PEI phase does not support to free pool, so leave it as NOP.\r | |
| 648 | //\r | |
| 649 | }\r | |
| 650 | \r | |
| 651 | /**\r | |
| 652 | Allocates a buffer of a certain pool type at a specified alignment.\r | |
| 653 | \r | |
| 654 | Allocates the number bytes specified by AllocationSize of a certain pool type with an alignment\r | |
| 655 | specified by Alignment. The allocated buffer is returned. If AllocationSize is 0, then a valid\r | |
| 656 | buffer of 0 size is returned. If there is not enough memory at the specified alignment remaining\r | |
| 657 | to satisfy the request, then NULL is returned.\r | |
| 658 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 659 | \r | |
| 660 | @param PoolType The type of pool to allocate.\r | |
| 661 | @param AllocationSize The number of bytes to allocate.\r | |
| 662 | @param Alignment The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used.\r | |
| 663 | If Alignment is zero, then byte alignment is used.\r | |
| 664 | \r | |
| 665 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 666 | \r | |
| 667 | **/\r | |
| 668 | VOID *\r | |
| 669 | InternalAllocateAlignedPool (\r | |
| 670 | IN EFI_MEMORY_TYPE PoolType,\r | |
| 671 | IN UINTN AllocationSize,\r | |
| 672 | IN UINTN Alignment\r | |
| 673 | )\r | |
| 674 | {\r | |
| 675 | VOID *RawAddress;\r | |
| 676 | UINTN AlignedAddress;\r | |
| 677 | UINTN AlignmentMask;\r | |
| 678 | \r | |
| 679 | //\r | |
| 680 | // Alignment must be a power of two or zero.\r | |
| 681 | //\r | |
| 682 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
| 683 | \r | |
| 684 | if (Alignment == 0) {\r | |
| 685 | AlignmentMask = Alignment;\r | |
| 686 | } else {\r | |
| 687 | AlignmentMask = Alignment - 1;\r | |
| 688 | }\r | |
| 689 | //\r | |
| 690 | // Make sure that AllocationSize plus AlignmentMask does not overflow.\r | |
| 691 | //\r | |
| 692 | ASSERT (AllocationSize <= (MAX_ADDRESS - AlignmentMask));\r | |
| 693 | \r | |
| 694 | RawAddress = InternalAllocatePool (PoolType, AllocationSize + AlignmentMask);\r | |
| 695 | \r | |
| 696 | AlignedAddress = ((UINTN) RawAddress + AlignmentMask) & ~AlignmentMask;\r | |
| 697 | \r | |
| 698 | return (VOID *) AlignedAddress;\r | |
| 699 | }\r | |
| 700 | \r | |
| 701 | /**\r | |
| 702 | Allocates a buffer of type EfiBootServicesData at a specified alignment.\r | |
| 703 | \r | |
| 704 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an\r | |
| 705 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 706 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 707 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 708 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 709 | \r | |
| 710 | @param AllocationSize The number of bytes to allocate.\r | |
| 711 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 712 | If Alignment is zero, then byte alignment is used.\r | |
| 713 | \r | |
| 714 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 715 | \r | |
| 716 | **/\r | |
| 717 | VOID *\r | |
| 718 | EFIAPI\r | |
| 719 | AllocateAlignedPool (\r | |
| 720 | IN UINTN AllocationSize,\r | |
| 721 | IN UINTN Alignment\r | |
| 722 | )\r | |
| 723 | {\r | |
| 724 | VOID *RawAddress;\r | |
| 725 | UINTN AlignedAddress;\r | |
| 726 | UINTN AlignmentMask;\r | |
| 727 | \r | |
| 728 | //\r | |
| 729 | // Alignment must be a power of two or zero.\r | |
| 730 | //\r | |
| 731 | ASSERT ((Alignment & (Alignment - 1)) == 0);\r | |
| 732 | \r | |
| 733 | if (Alignment == 0) {\r | |
| 734 | AlignmentMask = Alignment;\r | |
| 735 | } else {\r | |
| 736 | AlignmentMask = Alignment - 1;\r | |
| 737 | }\r | |
| 738 | \r | |
| 739 | //\r | |
| 740 | // Make sure that AllocationSize plus AlignmentMask does not overflow.\r | |
| 741 | //\r | |
| 742 | ASSERT (AllocationSize <= (MAX_ADDRESS - AlignmentMask));\r | |
| 743 | \r | |
| 744 | RawAddress = AllocatePool (AllocationSize + AlignmentMask);\r | |
| 745 | \r | |
| 746 | AlignedAddress = ((UINTN) RawAddress + AlignmentMask) & ~AlignmentMask;\r | |
| 747 | \r | |
| 748 | return (VOID *) AlignedAddress;\r | |
| 749 | }\r | |
| 750 | \r | |
| 751 | /**\r | |
| 752 | Allocates a buffer of type EfiRuntimeServicesData at a specified alignment.\r | |
| 753 | \r | |
| 754 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an\r | |
| 755 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 756 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 757 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 758 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 759 | \r | |
| 760 | @param AllocationSize The number of bytes to allocate.\r | |
| 761 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 762 | If Alignment is zero, then byte alignment is used.\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 | AllocateAlignedRuntimePool (\r | |
| 770 | IN UINTN AllocationSize,\r | |
| 771 | IN UINTN Alignment\r | |
| 772 | )\r | |
| 773 | {\r | |
| 774 | return InternalAllocateAlignedPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r | |
| 775 | }\r | |
| 776 | \r | |
| 777 | /**\r | |
| 778 | Allocates a buffer of type EfieservedMemoryType at a specified alignment.\r | |
| 779 | \r | |
| 780 | Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an\r | |
| 781 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 782 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 783 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 784 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 785 | \r | |
| 786 | @param AllocationSize The number of bytes to allocate.\r | |
| 787 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 788 | If Alignment is zero, then byte alignment is used.\r | |
| 789 | \r | |
| 790 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 791 | \r | |
| 792 | **/\r | |
| 793 | VOID *\r | |
| 794 | EFIAPI\r | |
| 795 | AllocateAlignedReservedPool (\r | |
| 796 | IN UINTN AllocationSize,\r | |
| 797 | IN UINTN Alignment\r | |
| 798 | )\r | |
| 799 | {\r | |
| 800 | return InternalAllocateAlignedPool (EfiReservedMemoryType, AllocationSize, Alignment);\r | |
| 801 | }\r | |
| 802 | \r | |
| 803 | /**\r | |
| 804 | Allocates and zeros a buffer of a certain pool type at a specified alignment.\r | |
| 805 | \r | |
| 806 | Allocates the number bytes specified by AllocationSize of a certain pool type with an alignment\r | |
| 807 | specified by Alignment, clears the buffer with zeros, and returns a pointer to the allocated\r | |
| 808 | buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there is not\r | |
| 809 | enough memory at the specified alignment remaining to satisfy the request, then NULL is returned.\r | |
| 810 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 811 | \r | |
| 812 | @param PoolType The type of pool to allocate.\r | |
| 813 | @param AllocationSize The number of bytes to allocate.\r | |
| 814 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 815 | If Alignment is zero, then byte alignment is used.\r | |
| 816 | \r | |
| 817 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 818 | \r | |
| 819 | **/\r | |
| 820 | VOID *\r | |
| 821 | InternalAllocateAlignedZeroPool (\r | |
| 822 | IN EFI_MEMORY_TYPE PoolType,\r | |
| 823 | IN UINTN AllocationSize,\r | |
| 824 | IN UINTN Alignment\r | |
| 825 | )\r | |
| 826 | {\r | |
| 827 | VOID *Memory;\r | |
| 828 | \r | |
| 829 | Memory = InternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r | |
| 830 | if (Memory != NULL) {\r | |
| 831 | Memory = ZeroMem (Memory, AllocationSize);\r | |
| 832 | }\r | |
| 833 | return Memory;\r | |
| 834 | }\r | |
| 835 | \r | |
| 836 | /**\r | |
| 837 | Allocates and zeros a buffer of type EfiBootServicesData at a specified alignment.\r | |
| 838 | \r | |
| 839 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an\r | |
| 840 | alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the\r | |
| 841 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 842 | is not enough memory at the specified alignment remaining to satisfy the request, then NULL is\r | |
| 843 | returned.\r | |
| 844 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 845 | \r | |
| 846 | @param AllocationSize The number of bytes to allocate.\r | |
| 847 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 848 | If Alignment is zero, then byte alignment is used.\r | |
| 849 | \r | |
| 850 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 851 | \r | |
| 852 | **/\r | |
| 853 | VOID *\r | |
| 854 | EFIAPI\r | |
| 855 | AllocateAlignedZeroPool (\r | |
| 856 | IN UINTN AllocationSize,\r | |
| 857 | IN UINTN Alignment\r | |
| 858 | )\r | |
| 859 | {\r | |
| 860 | VOID *Memory;\r | |
| 861 | \r | |
| 862 | Memory = AllocateAlignedPool (AllocationSize, Alignment);\r | |
| 863 | if (Memory != NULL) {\r | |
| 864 | Memory = ZeroMem (Memory, AllocationSize);\r | |
| 865 | }\r | |
| 866 | return Memory;\r | |
| 867 | }\r | |
| 868 | \r | |
| 869 | /**\r | |
| 870 | Allocates and zeros a buffer of type EfiRuntimeServicesData at a specified alignment.\r | |
| 871 | \r | |
| 872 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an\r | |
| 873 | alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the\r | |
| 874 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 875 | is not enough memory at the specified alignment remaining to satisfy the request, then NULL is\r | |
| 876 | returned.\r | |
| 877 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 878 | \r | |
| 879 | @param AllocationSize The number of bytes to allocate.\r | |
| 880 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 881 | If Alignment is zero, then byte alignment is used.\r | |
| 882 | \r | |
| 883 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 884 | \r | |
| 885 | **/\r | |
| 886 | VOID *\r | |
| 887 | EFIAPI\r | |
| 888 | AllocateAlignedRuntimeZeroPool (\r | |
| 889 | IN UINTN AllocationSize,\r | |
| 890 | IN UINTN Alignment\r | |
| 891 | )\r | |
| 892 | {\r | |
| 893 | return InternalAllocateAlignedZeroPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r | |
| 894 | }\r | |
| 895 | \r | |
| 896 | /**\r | |
| 897 | Allocates and zeros a buffer of type EfieservedMemoryType at a specified alignment.\r | |
| 898 | \r | |
| 899 | Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an\r | |
| 900 | alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the\r | |
| 901 | allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r | |
| 902 | is not enough memory at the specified alignment remaining to satisfy the request, then NULL is\r | |
| 903 | returned.\r | |
| 904 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 905 | \r | |
| 906 | @param AllocationSize The number of bytes to allocate.\r | |
| 907 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 908 | If Alignment is zero, then byte alignment is used.\r | |
| 909 | \r | |
| 910 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 911 | \r | |
| 912 | **/\r | |
| 913 | VOID *\r | |
| 914 | EFIAPI\r | |
| 915 | AllocateAlignedReservedZeroPool (\r | |
| 916 | IN UINTN AllocationSize,\r | |
| 917 | IN UINTN Alignment\r | |
| 918 | )\r | |
| 919 | {\r | |
| 920 | return InternalAllocateAlignedZeroPool (EfiReservedMemoryType, AllocationSize, Alignment);\r | |
| 921 | }\r | |
| 922 | \r | |
| 923 | /**\r | |
| 924 | Copies a buffer to an allocated buffer of a certain pool type at a specified alignment.\r | |
| 925 | \r | |
| 926 | Allocates the number bytes specified by AllocationSize of a certain pool type with an alignment\r | |
| 927 | specified by Alignment. The allocated buffer is returned. If AllocationSize is 0, then a valid\r | |
| 928 | buffer of 0 size is returned. If there is not enough memory at the specified alignment remaining\r | |
| 929 | to satisfy the request, then NULL is returned.\r | |
| 930 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 931 | \r | |
| 932 | @param PoolType The type of pool to allocate.\r | |
| 933 | @param AllocationSize The number of bytes to allocate.\r | |
| 934 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 935 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 936 | If Alignment is zero, then byte alignment is used.\r | |
| 937 | \r | |
| 938 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 939 | \r | |
| 940 | **/\r | |
| 941 | VOID *\r | |
| 942 | InternalAllocateAlignedCopyPool (\r | |
| 943 | IN EFI_MEMORY_TYPE PoolType,\r | |
| 944 | IN UINTN AllocationSize,\r | |
| 945 | IN CONST VOID *Buffer,\r | |
| 946 | IN UINTN Alignment\r | |
| 947 | )\r | |
| 948 | {\r | |
| 949 | VOID *Memory;\r | |
| 950 | \r | |
| 951 | ASSERT (Buffer != NULL);\r | |
| 952 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
| 953 | \r | |
| 954 | Memory = InternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r | |
| 955 | if (Memory != NULL) {\r | |
| 956 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
| 957 | }\r | |
| 958 | return Memory;\r | |
| 959 | }\r | |
| 960 | \r | |
| 961 | /**\r | |
| 962 | Copies a buffer to an allocated buffer of type EfiBootServicesData at a specified alignment.\r | |
| 963 | \r | |
| 964 | Allocates the number bytes specified by AllocationSize of type EfiBootServicesData type with an\r | |
| 965 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 966 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 967 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 968 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 969 | \r | |
| 970 | @param AllocationSize The number of bytes to allocate.\r | |
| 971 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 972 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 973 | If Alignment is zero, then byte alignment is used.\r | |
| 974 | \r | |
| 975 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 976 | \r | |
| 977 | **/\r | |
| 978 | VOID *\r | |
| 979 | EFIAPI\r | |
| 980 | AllocateAlignedCopyPool (\r | |
| 981 | IN UINTN AllocationSize,\r | |
| 982 | IN CONST VOID *Buffer,\r | |
| 983 | IN UINTN Alignment\r | |
| 984 | )\r | |
| 985 | {\r | |
| 986 | VOID *Memory;\r | |
| 987 | \r | |
| 988 | ASSERT (Buffer != NULL);\r | |
| 989 | ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r | |
| 990 | \r | |
| 991 | Memory = AllocateAlignedPool (AllocationSize, Alignment);\r | |
| 992 | if (Memory != NULL) {\r | |
| 993 | Memory = CopyMem (Memory, Buffer, AllocationSize);\r | |
| 994 | }\r | |
| 995 | return Memory;\r | |
| 996 | }\r | |
| 997 | \r | |
| 998 | /**\r | |
| 999 | Copies a buffer to an allocated buffer of type EfiRuntimeServicesData at a specified alignment.\r | |
| 1000 | \r | |
| 1001 | Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData type with an\r | |
| 1002 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 1003 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 1004 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 1005 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 1006 | \r | |
| 1007 | @param AllocationSize The number of bytes to allocate.\r | |
| 1008 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 1009 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 1010 | If Alignment is zero, then byte alignment is used.\r | |
| 1011 | \r | |
| 1012 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 1013 | \r | |
| 1014 | **/\r | |
| 1015 | VOID *\r | |
| 1016 | EFIAPI\r | |
| 1017 | AllocateAlignedRuntimeCopyPool (\r | |
| 1018 | IN UINTN AllocationSize,\r | |
| 1019 | IN CONST VOID *Buffer,\r | |
| 1020 | IN UINTN Alignment\r | |
| 1021 | )\r | |
| 1022 | {\r | |
| 1023 | return InternalAllocateAlignedCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer, Alignment);\r | |
| 1024 | }\r | |
| 1025 | \r | |
| 1026 | /**\r | |
| 1027 | Copies a buffer to an allocated buffer of type EfiReservedMemoryType at a specified alignment.\r | |
| 1028 | \r | |
| 1029 | Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType type with an\r | |
| 1030 | alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,\r | |
| 1031 | then a valid buffer of 0 size is returned. If there is not enough memory at the specified\r | |
| 1032 | alignment remaining to satisfy the request, then NULL is returned.\r | |
| 1033 | If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r | |
| 1034 | \r | |
| 1035 | @param AllocationSize The number of bytes to allocate.\r | |
| 1036 | @param Buffer The buffer to copy to the allocated buffer.\r | |
| 1037 | @param Alignment The requested alignment of the allocation. Must be a power of two.\r | |
| 1038 | If Alignment is zero, then byte alignment is used.\r | |
| 1039 | \r | |
| 1040 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 1041 | \r | |
| 1042 | **/\r | |
| 1043 | VOID *\r | |
| 1044 | EFIAPI\r | |
| 1045 | AllocateAlignedReservedCopyPool (\r | |
| 1046 | IN UINTN AllocationSize,\r | |
| 1047 | IN CONST VOID *Buffer,\r | |
| 1048 | IN UINTN Alignment\r | |
| 1049 | )\r | |
| 1050 | {\r | |
| 1051 | return InternalAllocateAlignedCopyPool (EfiReservedMemoryType, AllocationSize, Buffer, Alignment);\r | |
| 1052 | }\r | |
| 1053 | \r | |
| 1054 | /**\r | |
| 1055 | Frees a buffer that was previously allocated with one of the aligned pool allocation functions \r | |
| 1056 | in the Memory Allocation Library.\r | |
| 1057 | \r | |
| 1058 | Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r | |
| 1059 | aligned pool allocation services of the Memory Allocation Library.\r | |
| 1060 | If Buffer was not allocated with an aligned pool allocation function in the Memory Allocation\r | |
| 1061 | Library, then ASSERT().\r | |
| 1062 | \r | |
| 1063 | @param Buffer Pointer to the buffer to free.\r | |
| 1064 | \r | |
| 1065 | **/\r | |
| 1066 | VOID\r | |
| 1067 | EFIAPI\r | |
| 1068 | FreeAlignedPool (\r | |
| 1069 | IN VOID *Buffer\r | |
| 1070 | )\r | |
| 1071 | {\r | |
| 1072 | //\r | |
| 1073 | // PEI phase does not support to free pool, so leave it as NOP.\r | |
| 1074 | //\r | |
| 1075 | }\r |