/** @file | |
Resource Publication Library that uses PEI Core Services to publish system memory. | |
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#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; | |
} |