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/*++
Copyright (c) 2006 - 2007, Intel Corporation
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.
Module Name:
NullMemoryTest.c
Abstract:
--*/
#include "NullMemoryTest.h"
//
// Module global members
//
UINT64 mTestedSystemMemory = 0;
UINT64 mTotalSystemMemory = 0;
EFI_HANDLE mGenericMemoryTestHandle;
//
// Driver entry here
//
EFI_GENERIC_MEMORY_TEST_PROTOCOL mGenericMemoryTest = {
InitializeMemoryTest,
GenPerformMemoryTest,
GenMemoryTestFinished,
GenCompatibleRangeTest
};
EFI_STATUS
EFIAPI
GenericMemoryTestEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
The generic memory test driver's entry point, it can initialize private data
to default value
Arguments:
ImageHandle of the loaded driver
Pointer to the System Table
Returns:
Status
EFI_SUCCESS - Protocol successfully installed
EFI_OUT_OF_RESOURCES - Can not allocate protocol data structure in base
memory
--*/
{
EFI_STATUS Status;
//
// Install the protocol
//
Status = gBS->InstallProtocolInterface (
&mGenericMemoryTestHandle,
&gEfiGenericMemTestProtocolGuid,
EFI_NATIVE_INTERFACE,
&mGenericMemoryTest
);
return Status;
}
//
// EFI_GENERIC_MEMORY_TEST_PROTOCOL implementation
//
EFI_STATUS
EFIAPI
InitializeMemoryTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN EXTENDMEM_COVERAGE_LEVEL Level,
OUT BOOLEAN *RequireSoftECCInit
)
/*++
Routine Description:
Arguments:
Returns:
--*/
{
UINTN NumberOfDescriptors;
EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
UINTN Index;
gDS->GetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
for (Index = 0; Index < NumberOfDescriptors; Index++) {
if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeReserved &&
(MemorySpaceMap[Index].Capabilities & (EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED)) ==
(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED)
) {
gDS->RemoveMemorySpace (
MemorySpaceMap[Index].BaseAddress,
MemorySpaceMap[Index].Length
);
gDS->AddMemorySpace (
EfiGcdMemoryTypeSystemMemory,
MemorySpaceMap[Index].BaseAddress,
MemorySpaceMap[Index].Length,
MemorySpaceMap[Index].Capabilities &~
(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
);
mTestedSystemMemory += MemorySpaceMap[Index].Length;
mTotalSystemMemory += MemorySpaceMap[Index].Length;
} else if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {
mTotalSystemMemory += MemorySpaceMap[Index].Length;
}
}
FreePool (MemorySpaceMap);
*RequireSoftECCInit = FALSE;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
GenPerformMemoryTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN OUT UINT64 *TestedMemorySize,
OUT UINT64 *TotalMemorySize,
OUT BOOLEAN *ErrorOut,
IN BOOLEAN TestAbort
)
/*++
Routine Description:
Arguments:
Returns:
--*/
{
*ErrorOut = FALSE;
*TestedMemorySize = mTestedSystemMemory;
*TotalMemorySize = mTotalSystemMemory;
return EFI_NOT_FOUND;
}
EFI_STATUS
EFIAPI
GenMemoryTestFinished (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This
)
/*++
Routine Description:
Arguments:
Returns:
--*/
{
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
GenCompatibleRangeTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN EFI_PHYSICAL_ADDRESS StartAddress,
IN UINT64 Length
)
/*++
Routine Description:
Arguments:
Returns:
--*/
{
EFI_GCD_MEMORY_SPACE_DESCRIPTOR descriptor;
gDS->GetMemorySpaceDescriptor (StartAddress, &descriptor);
gDS->RemoveMemorySpace (StartAddress, Length);
gDS->AddMemorySpace (
EfiGcdMemoryTypeSystemMemory,
StartAddress,
Length,
descriptor.Capabilities &~(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
);
return EFI_SUCCESS;
}
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