mirror of https://github.com/acidanthera/audk.git
144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/** @file
|
|
Support of memory test in PEI Phase.
|
|
|
|
Copyright (c) 2006 - 2008, 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 "BaseMemoryTest.h"
|
|
|
|
PEI_BASE_MEMORY_TEST_PPI mPeiBaseMemoryTestPpi = {
|
|
BaseMemoryTest
|
|
};
|
|
|
|
EFI_PEI_PPI_DESCRIPTOR PpiListPeiBaseMemoryTest = {
|
|
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
|
|
&gPeiBaseMemoryTestPpiGuid,
|
|
&mPeiBaseMemoryTestPpi
|
|
};
|
|
|
|
/**
|
|
Entry point of BaseMemoryTestPei PEIM.
|
|
|
|
This function is the entry point of BaseMemoryTestPei PEIM.
|
|
It installs the PEI_BASE_MEMORY_TEST_PPI.
|
|
|
|
@param FileHandle Handle of the file being invoked.
|
|
@param PeiServices Describes the list of possible PEI Services.
|
|
|
|
@retval EFI_SUCCESS PEI_BASE_MEMORY_TEST_PPI is successfully installed.
|
|
@retval Others PEI_BASE_MEMORY_TEST_PPI is not successfully installed.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiBaseMemoryTestInit (
|
|
IN EFI_PEI_FILE_HANDLE FileHandle,
|
|
IN CONST EFI_PEI_SERVICES **PeiServices
|
|
)
|
|
{
|
|
return PeiServicesInstallPpi (&PpiListPeiBaseMemoryTest);
|
|
|
|
}
|
|
|
|
/**
|
|
Test base memory.
|
|
|
|
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
|
|
@param This Pointer to this PPI instance.
|
|
@param BeginAddress Beginning of the memory address to be checked.
|
|
@param MemoryLength Bytes of memory range to be checked.
|
|
@param Operation Type of memory check operation to be performed.
|
|
@param ErrorAddress Pointer to address of the error memory returned.
|
|
|
|
@retval EFI_SUCCESS Memory test passed.
|
|
@retval EFI_DEVICE_ERROR Memory test failed.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BaseMemoryTest (
|
|
IN EFI_PEI_SERVICES **PeiServices,
|
|
IN PEI_BASE_MEMORY_TEST_PPI *This,
|
|
IN EFI_PHYSICAL_ADDRESS BeginAddress,
|
|
IN UINT64 MemoryLength,
|
|
IN PEI_MEMORY_TEST_OP Operation,
|
|
OUT EFI_PHYSICAL_ADDRESS *ErrorAddress
|
|
)
|
|
{
|
|
UINT32 TestPattern;
|
|
EFI_PHYSICAL_ADDRESS TempAddress;
|
|
UINT32 SpanSize;
|
|
|
|
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, PcdGet32 (PcdStatusCodeValueMemoryTestStarted));
|
|
|
|
TestPattern = TEST_PATTERN;
|
|
SpanSize = 0;
|
|
|
|
//
|
|
// Make sure we don't try and test anything above the max physical address range
|
|
//
|
|
ASSERT (BeginAddress + MemoryLength < MAX_ADDRESS);
|
|
|
|
switch (Operation) {
|
|
case Extensive:
|
|
//
|
|
// Extensive means full and detailed check,
|
|
// so use small span size to cover the entire test range.
|
|
//
|
|
SpanSize = 0x4;
|
|
break;
|
|
|
|
case Sparse:
|
|
case Quick:
|
|
//
|
|
// Sparse and Quick indicates quick test,
|
|
// so use large span size for sample test.
|
|
//
|
|
SpanSize = COVER_SPAN;
|
|
break;
|
|
|
|
case Ignore:
|
|
//
|
|
// Ignore means no test.
|
|
//
|
|
goto Done;
|
|
break;
|
|
}
|
|
//
|
|
// Write the test pattern into memory range
|
|
//
|
|
TempAddress = BeginAddress;
|
|
while (TempAddress < BeginAddress + MemoryLength) {
|
|
(*(UINT32 *) (UINTN) TempAddress) = TestPattern;
|
|
TempAddress += SpanSize;
|
|
}
|
|
//
|
|
// Read pattern from memory and compare it
|
|
//
|
|
TempAddress = BeginAddress;
|
|
while (TempAddress < BeginAddress + MemoryLength) {
|
|
if ((*(UINT32 *) (UINTN) TempAddress) != TestPattern) {
|
|
//
|
|
// Value read back does not equal to the value written, so error is detected.
|
|
//
|
|
*ErrorAddress = TempAddress;
|
|
REPORT_STATUS_CODE (EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED, PcdGet32 (PcdStatusCodeValueUncorrectableMemoryError));
|
|
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
TempAddress += SpanSize;
|
|
}
|
|
|
|
Done:
|
|
return EFI_SUCCESS;
|
|
}
|