EmbeddedPkg: Introduce PrePiMemoryAllocationLib (2)

Forgot the new files ...



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11944 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 75 insertions, 4 deletions

diff --git a/EmbeddedPkg/Library/PrePiLib/Memory.c b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
index e6a649f149..7cfc28e1e7 100644
--- a/EmbeddedPkg/Library/PrePiLib/Memory.c
+++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
@@ -13,7 +13,11 @@
 
 **/
 
-#include <PrePi.h>
+#include <PiPei.h>
+
+#include <Library/BaseLib.h>
+#include <Library/PrePiLib.h>
+#include <Library/DebugLib.h>
 
 
 
@@ -30,7 +34,7 @@
   @return A pointer to the allocated buffer or NULL if allocation fails.
 
 **/
-VOID * 
+VOID *
 EFIAPI
 AllocatePages (
   IN UINTN            Pages
@@ -61,7 +65,15 @@ AllocatePages (
 
     // This routine used to create a memory allocation HOB a la PEI, but that's not
     // necessary for us.
-    
+
+    //
+    // Create a memory allocation HOB.
+    //
+    BuildMemoryAllocationHob (
+        Hob.HandoffInformationTable->EfiFreeMemoryTop,
+        Pages * EFI_PAGE_SIZE,
+        EfiBootServicesData
+        );
     return (VOID *)(UINTN)Hob.HandoffInformationTable->EfiFreeMemoryTop;
   }
 }
@@ -112,7 +124,7 @@ AllocateAlignedPages (
   if (Alignment == 0) {
     AlignmentMask = Alignment;
   } else {
-    AlignmentMask = Alignment - 1;  
+    AlignmentMask = Alignment - 1;
   }
   return (VOID *) (UINTN) (((UINTN) Memory + AlignmentMask) & ~AlignmentMask);
 }
@@ -156,5 +168,25 @@ AllocatePool (
   }
 }
 
+/**
+  Frees a buffer that was previously allocated with one of the pool allocation functions in the
+  Memory Allocation Library.
+
+  Frees the buffer specified by Buffer.  Buffer must have been allocated on a previous call to the
+  pool allocation services of the Memory Allocation Library.  If it is not possible to free pool
+  resources, then this function will perform no actions.
 
+  If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,
+  then ASSERT().
 
+  @param  Buffer                Pointer to the buffer to free.
+
+**/
+VOID
+EFIAPI
+FreePool (
+  IN VOID   *Buffer
+  )
+{
+  // Not implemented yet
+}
diff --git a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/PrePiMemoryAllocationLib.inf b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/PrePiMemoryAllocationLib.inf
new file mode 100644
index 0000000000..2addc5a5a8
--- /dev/null
+++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/PrePiMemoryAllocationLib.inf
@@ -0,0 +1,39 @@
+#/** @file

+#  

+#  Copyright (c) 2011, ARM Ltd. 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

+#  http://opensource.org/licenses/bsd-license.php

+#  

+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+#  

+#**/

+

+[Defines]

+  INF_VERSION                    = 0x00010005

+  BASE_NAME                      = PrePiMemoryAllocationLib

+  FILE_GUID                      = 4f14c900-51a9-11e0-afbf-0002a5d5c51b

+  MODULE_TYPE                    = PEIM

+  VERSION_STRING                 = 1.0

+  LIBRARY_CLASS                  = MemoryAllocationLib

+

+

+#

+#  VALID_ARCHITECTURES           = ARM

+#

+

+[Sources]

+  MemoryAllocationLib.c

+

+[Packages]

+  MdePkg/MdePkg.dec

+  EmbeddedPkg/EmbeddedPkg.dec

+

+[LibraryClasses]

+  DebugLib

+  BaseMemoryLib

+  PrePiLib

+  #PeiServicesLib

+