Revision: 17395
http://sourceforge.net/p/edk2/code/17395
Author: lzeng14
Date: 2015-05-11 03:12:51 +0000 (Mon, 11 May 2015)
Log Message:
-----------
MdePkg: Update PeiMemoryAllocationLib to allocate EfiReservedMemoryType memory
directly.
The old implementation was to allocate EfiBootServicesData memory first,
and then update the MemoryType of memory allocation hob to
EfiReservedMemoryType.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <[email protected]>
Reviewed-by: Liming Gao <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
Modified: trunk/edk2/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
===================================================================
--- trunk/edk2/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
2015-05-11 03:12:21 UTC (rev 17394)
+++ trunk/edk2/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
2015-05-11 03:12:51 UTC (rev 17395)
@@ -2,7 +2,7 @@
Support routines for memory allocation routines
based on PeiService for PEI phase drivers.
- Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -45,42 +45,15 @@
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS Memory;
- EFI_MEMORY_TYPE RequestType;
- EFI_PEI_HOB_POINTERS Hob;
if (Pages == 0) {
return NULL;
}
- RequestType = MemoryType;
- if (MemoryType == EfiReservedMemoryType) {
- //
- // PEI AllocatePages() doesn't support EfiReservedMemoryType.
- // Change RequestType to EfiBootServicesData for memory allocation.
- //
- RequestType = EfiBootServicesData;
- }
-
- Status = PeiServicesAllocatePages (RequestType, Pages, &Memory);
+ Status = PeiServicesAllocatePages (MemoryType, Pages, &Memory);
if (EFI_ERROR (Status)) {
return NULL;
}
-
- if (MemoryType == EfiReservedMemoryType) {
- //
- // Memory type needs to be updated to EfiReservedMemoryType. Per PI spec
Volume 1,
- // PEI AllocatePages() will automate the creation of the Memory Allocation
HOB types.
- // Search Memory Allocation HOB and find the matched memory region,
- // then change its memory type to EfiReservedMemoryType.
- //
- Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
- while (Hob.Raw != NULL &&
Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress != Memory) {
- Hob.Raw = GET_NEXT_HOB (Hob);
- Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
- }
- ASSERT (Hob.Raw != NULL);
- Hob.MemoryAllocation->AllocDescriptor.MemoryType = EfiReservedMemoryType;
- }
return (VOID *) (UINTN) Memory;
}
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