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53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/** @file
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Resource Publication Library that uses PEI Core Services to publish system memory.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiPei.h>
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#include <Library/ResourcePublicationLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/DebugLib.h>
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/**
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Declares the presence of permanent system memory in the platform.
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Declares that the system memory buffer specified by MemoryBegin and MemoryLength
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as permanent memory that may be used for general purpose use by software.
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The amount of memory available to software may be less than MemoryLength
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if published memory has alignment restrictions.
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If MemoryLength is 0, then ASSERT().
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If MemoryLength is greater than (MAX_ADDRESS - MemoryBegin + 1), then ASSERT().
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@param MemoryBegin The start address of the memory being declared.
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@param MemoryLength The number of bytes of memory being declared.
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@retval RETURN_SUCCESS The memory buffer was published.
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@retval RETURN_OUT_OF_RESOURCES There are not enough resources to publish the memory buffer
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**/
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RETURN_STATUS
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EFIAPI
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PublishSystemMemory (
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IN PHYSICAL_ADDRESS MemoryBegin,
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IN UINT64 MemoryLength
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)
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{
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EFI_STATUS Status;
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ASSERT (MemoryLength > 0);
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ASSERT (MemoryLength <= (MAX_ADDRESS - MemoryBegin + 1));
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Status = PeiServicesInstallPeiMemory (MemoryBegin, MemoryLength);
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return (RETURN_STATUS) Status;
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}
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