/** @file\r
Data structure and functions to allocate and free memory space.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r
-All rights reserved. This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef _IMEM_H_\r
#define _IMEM_H_\r
\r
-#if defined (MDE_CPU_IPF)\r
-///\r
-/// For Itanium machines make the default allocations 8K aligned\r
-///\r
-#define EFI_ACPI_RUNTIME_PAGE_ALLOCATION_ALIGNMENT (EFI_PAGE_SIZE * 2)\r
-#define DEFAULT_PAGE_ALLOCATION (EFI_PAGE_SIZE * 2)\r
-\r
-#else\r
-///\r
-/// For genric EFI machines make the default allocations 4K aligned\r
-///\r
-#define EFI_ACPI_RUNTIME_PAGE_ALLOCATION_ALIGNMENT (EFI_PAGE_SIZE)\r
-#define DEFAULT_PAGE_ALLOCATION (EFI_PAGE_SIZE)\r
-\r
-#endif\r
-\r
+//\r
+// +---------------------------------------------------+\r
+// | 0..(EfiMaxMemoryType - 1) - Normal memory type |\r
+// +---------------------------------------------------+\r
+// | EfiMaxMemoryType..0x6FFFFFFF - Invalid |\r
+// +---------------------------------------------------+\r
+// | 0x70000000..0x7FFFFFFF - OEM reserved |\r
+// +---------------------------------------------------+\r
+// | 0x80000000..0xFFFFFFFF - OS reserved |\r
+// +---------------------------------------------------+\r
+//\r
+#define MEMORY_TYPE_OS_RESERVED_MIN 0x80000000\r
+#define MEMORY_TYPE_OS_RESERVED_MAX 0xFFFFFFFF\r
+#define MEMORY_TYPE_OEM_RESERVED_MIN 0x70000000\r
+#define MEMORY_TYPE_OEM_RESERVED_MAX 0x7FFFFFFF\r
\r
//\r
// MEMORY_MAP_ENTRY\r
//\r
\r
-#define MEMORY_MAP_SIGNATURE EFI_SIGNATURE_32('m','m','a','p')\r
+#define MEMORY_MAP_SIGNATURE SIGNATURE_32('m','m','a','p')\r
typedef struct {\r
- UINTN Signature;\r
- LIST_ENTRY Link;\r
- BOOLEAN FromPages;\r
+ UINTN Signature;\r
+ LIST_ENTRY Link;\r
+ BOOLEAN FromPages;\r
\r
- EFI_MEMORY_TYPE Type;\r
- UINT64 Start;\r
- UINT64 End;\r
+ EFI_MEMORY_TYPE Type;\r
+ UINT64 Start;\r
+ UINT64 End;\r
\r
- UINT64 VirtualStart;\r
- UINT64 Attribute;\r
+ UINT64 VirtualStart;\r
+ UINT64 Attribute;\r
} MEMORY_MAP;\r
\r
//\r
// Internal prototypes\r
//\r
\r
-\r
/**\r
Internal function. Used by the pool functions to allocate pages\r
to back pool allocation requests.\r
@param PoolType The type of memory for the new pool pages\r
@param NumberOfPages No of pages to allocate\r
@param Alignment Bits to align.\r
+ @param NeedGuard Flag to indicate Guard page is needed or not\r
\r
@return The allocated memory, or NULL\r
\r
**/\r
VOID *\r
CoreAllocatePoolPages (\r
- IN EFI_MEMORY_TYPE PoolType,\r
- IN UINTN NumberOfPages,\r
- IN UINTN Alignment\r
+ IN EFI_MEMORY_TYPE PoolType,\r
+ IN UINTN NumberOfPages,\r
+ IN UINTN Alignment,\r
+ IN BOOLEAN NeedGuard\r
);\r
\r
-\r
-\r
/**\r
Internal function. Frees pool pages allocated via AllocatePoolPages ()\r
\r
**/\r
VOID\r
CoreFreePoolPages (\r
- IN EFI_PHYSICAL_ADDRESS Memory,\r
- IN UINTN NumberOfPages\r
+ IN EFI_PHYSICAL_ADDRESS Memory,\r
+ IN UINTN NumberOfPages\r
);\r
\r
-\r
-\r
/**\r
Internal function to allocate pool of a particular type.\r
Caller must have the memory lock held\r
\r
@param PoolType Type of pool to allocate\r
@param Size The amount of pool to allocate\r
+ @param NeedGuard Flag to indicate Guard page is needed or not\r
\r
@return The allocate pool, or NULL\r
\r
VOID *\r
CoreAllocatePoolI (\r
IN EFI_MEMORY_TYPE PoolType,\r
- IN UINTN Size\r
+ IN UINTN Size,\r
+ IN BOOLEAN NeedGuard\r
);\r
\r
-\r
-\r
/**\r
Internal function to free a pool entry.\r
Caller must have the memory lock held\r
\r
@param Buffer The allocated pool entry to free\r
+ @param PoolType Pointer to pool type\r
\r
@retval EFI_INVALID_PARAMETER Buffer not valid\r
@retval EFI_SUCCESS Buffer successfully freed.\r
**/\r
EFI_STATUS\r
CoreFreePoolI (\r
- IN VOID *Buffer\r
+ IN VOID *Buffer,\r
+ OUT EFI_MEMORY_TYPE *PoolType OPTIONAL\r
);\r
\r
-\r
-\r
/**\r
Enter critical section by gaining lock on gMemoryLock.\r
\r
VOID\r
);\r
\r
-\r
/**\r
Exit critical section by releasing lock on gMemoryLock.\r
\r
VOID\r
);\r
\r
+/**\r
+ Allocates pages from the memory map.\r
+\r
+ @param Type The type of allocation to perform\r
+ @param MemoryType The type of memory to turn the allocated pages\r
+ into\r
+ @param NumberOfPages The number of pages to allocate\r
+ @param Memory A pointer to receive the base allocated memory\r
+ address\r
+ @param NeedGuard Flag to indicate Guard page is needed or not\r
+\r
+ @return Status. On success, Memory is filled in with the base address allocated\r
+ @retval EFI_INVALID_PARAMETER Parameters violate checking rules defined in\r
+ spec.\r
+ @retval EFI_NOT_FOUND Could not allocate pages match the requirement.\r
+ @retval EFI_OUT_OF_RESOURCES No enough pages to allocate.\r
+ @retval EFI_SUCCESS Pages successfully allocated.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CoreInternalAllocatePages (\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN EFI_MEMORY_TYPE MemoryType,\r
+ IN UINTN NumberOfPages,\r
+ IN OUT EFI_PHYSICAL_ADDRESS *Memory,\r
+ IN BOOLEAN NeedGuard\r
+ );\r
\r
//\r
// Internal Global data\r
//\r
\r
-extern EFI_LOCK gMemoryLock;\r
-extern LIST_ENTRY gMemoryMap;\r
-extern LIST_ENTRY mGcdMemorySpaceMap;\r
+extern EFI_LOCK gMemoryLock;\r
+extern LIST_ENTRY gMemoryMap;\r
+extern LIST_ENTRY mGcdMemorySpaceMap;\r
#endif\r
projects / mirror_edk2.git / blobdiff