summaryrefslogtreecommitdiff
path: root/Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c
diff options
context:
space:
mode:
Diffstat (limited to 'Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c')
-rw-r--r--Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c b/Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c
new file mode 100644
index 0000000000..55ae63b1f1
--- /dev/null
+++ b/Core/MdePkg/Library/PeiResourcePublicationLib/PeiResourcePublicationLib.c
@@ -0,0 +1,58 @@
+/** @file
+ Resource Publication Library that uses PEI Core Services to publish system memory.
+
+ Copyright (c) 2006 - 2008, 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
+ 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.
+
+**/
+
+
+
+#include <PiPei.h>
+
+
+#include <Library/ResourcePublicationLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/DebugLib.h>
+
+
+/**
+ Declares the presence of permanent system memory in the platform.
+
+ Declares that the system memory buffer specified by MemoryBegin and MemoryLength
+ as permanent memory that may be used for general purpose use by software.
+ The amount of memory available to software may be less than MemoryLength
+ if published memory has alignment restrictions.
+ If MemoryLength is 0, then ASSERT().
+ If MemoryLength is greater than (MAX_ADDRESS - MemoryBegin + 1), then ASSERT().
+
+ @param MemoryBegin The start address of the memory being declared.
+ @param MemoryLength The number of bytes of memory being declared.
+
+ @retval RETURN_SUCCESS The memory buffer was published.
+ @retval RETURN_OUT_OF_RESOURCES There are not enough resources to publish the memory buffer
+
+**/
+RETURN_STATUS
+EFIAPI
+PublishSystemMemory (
+ IN PHYSICAL_ADDRESS MemoryBegin,
+ IN UINT64 MemoryLength
+ )
+{
+ EFI_STATUS Status;
+
+ ASSERT (MemoryLength > 0);
+ ASSERT (MemoryLength <= (MAX_ADDRESS - MemoryBegin + 1));
+
+ Status = PeiServicesInstallPeiMemory (MemoryBegin, MemoryLength);
+
+ return (RETURN_STATUS) Status;
+}
+