audk/MdeModulePkg/Library/BaseMemoryTestLibNull/BaseMemoryTestLibNull.c

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/** @file
Null instance of Memory Test Library.
Copyright (c) 2009, Intel Corporation.<BR>
All rights reserved. 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 <Base.h>
#include <Library/MemoryTestLib.h>
/**
Perform a quick system memory range test.
This function performs a quick system memory range test. It leads to quick performance
but least reliability.
@param StartAddress Start address of the memory range to test.
@param Length Length of the memory range to test.
@param ErrorAddress Address of the memory where error is encountered.
@retval RETURN_SUCCESS The memory range passes test.
@retval RETURN_DEVICE_ERROR The memory range does not pass test.
**/
RETURN_STATUS
EFIAPI
QuickMemoryTest (
IN VOID *StartAddress,
IN UINT64 Length,
OUT VOID **ErrorAddress
)
{
return RETURN_SUCCESS;
}
/**
Test a system memory range with sparsely sampled memory units.
This function tests a system memory range, whose memory units
are sampled sparsely. It leads to relatively good performance
and partial reliability.
@param StartAddress Start address of the memory range to test.
@param Length Length of the memory range to test.
@param ErrorAddress Address of the memory where error is encountered.
@retval RETURN_SUCCESS The memory range passes test.
@retval RETURN_DEVICE_ERROR The memory range does not pass test.
**/
RETURN_STATUS
EFIAPI
SparseMemoryTest (
IN VOID *StartAddress,
IN UINT64 Length,
OUT VOID **ErrorAddress
)
{
return RETURN_SUCCESS;
}
/**
Test a system memory range with extensively sampled memory units.
This function tests a system memory range, whose memory units
are sampled extensively. Compared with SparseMemoryTest, it achieves
more reliability and less performance.
@param StartAddress Start address of the memory range to test.
@param Length Length of the memory range to test.
@param ErrorAddress Address of the memory where error is encountered.
@retval RETURN_SUCCESS The memory range passes test.
@retval RETURN_DEVICE_ERROR The memory range does not pass test.
**/
RETURN_STATUS
EFIAPI
ExtensiveMemoryTest (
IN VOID *StartAddress,
IN UINT64 Length,
OUT VOID **ErrorAddress
)
{
return RETURN_SUCCESS;
}
/**
Check if soft ECC initialzation is needed for system
@retval TRUE Soft ECC initialzation is needed.
@retval FALSE Soft ECC initialzation is not needed.
**/
BOOLEAN
EFIAPI
IsSoftEccInitRequired (
VOID
)
{
return FALSE;
}