7902102145
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5000 6f19259b-4bc3-4df7-8a09-765794883524
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/** @file
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The PEI memory test support
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <BaseMemoryTest.h>
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#include <Library/PeiServicesLib.h>
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static PEI_BASE_MEMORY_TEST_PPI mPeiBaseMemoryTestPpi = { BaseMemoryTest };
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static EFI_PEI_PPI_DESCRIPTOR PpiListPeiBaseMemoryTest = {
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(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gPeiBaseMemoryTestPpiGuid,
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&mPeiBaseMemoryTestPpi
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};
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EFI_STATUS
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EFIAPI
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PeiBaseMemoryTestInit (
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IN EFI_FFS_FILE_HEADER *FfsHeader,
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IN EFI_PEI_SERVICES **PeiServices
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)
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/*++
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Description:
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Entry point function of BaseMemoryTestInit Peim.
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Arguments:
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PeiServices - General purpose services available to every PEIM.
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FfsHeader - Ffs header pointer
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Returns:
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Status - Result of InstallPpi
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--*/
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{
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return PeiServicesInstallPpi (&PpiListPeiBaseMemoryTest);
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}
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EFI_STATUS
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EFIAPI
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BaseMemoryTest (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_BASE_MEMORY_TEST_PPI *This,
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IN EFI_PHYSICAL_ADDRESS BeginAddress,
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IN UINT64 MemoryLength,
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IN PEI_MEMORY_TEST_OP Operation,
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OUT EFI_PHYSICAL_ADDRESS *ErrorAddress
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)
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/*++
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Description:
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Test base memory.
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Arguments:
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PeiServices - General purpose services available to every PEIM.
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This - Pei memory test PPI pointer.
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BeginAddress - Beginning of the memory address to be checked.
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MemoryLength - Bytes of memory range to be checked.
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Operation - Type of memory check operation to be performed.
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ErrorAddress - Return the address of the error memory address.
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ErrorAddress - Address which has error when checked.
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Returns:
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Status - Result of InstallPpi
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--*/
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{
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UINT32 TestPattern;
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EFI_PHYSICAL_ADDRESS TempAddress;
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UINT32 SpanSize;
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REPORT_STATUS_CODE (EFI_PROGRESS_CODE, PcdGet32 (PcdStatusCodeValueMemoryTestStarted));
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TestPattern = TEST_PATTERN;
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SpanSize = 0;
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//
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// Make sure we don't try and test anything above the max physical address range
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//
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ASSERT (BeginAddress + MemoryLength < EFI_MAX_ADDRESS);
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switch (Operation) {
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case Extensive:
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SpanSize = 0x4;
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break;
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case Sparse:
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case Quick:
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SpanSize = COVER_SPAN;
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break;
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case Ignore:
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goto Done;
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break;
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}
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//
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// Write the test pattern into memory range
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//
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TempAddress = BeginAddress;
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while (TempAddress < BeginAddress + MemoryLength) {
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(*(UINT32 *) (UINTN) TempAddress) = TestPattern;
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TempAddress += SpanSize;
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}
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//
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// Read pattern from memory and compare it
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//
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TempAddress = BeginAddress;
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while (TempAddress < BeginAddress + MemoryLength) {
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if ((*(UINT32 *) (UINTN) TempAddress) != TestPattern) {
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*ErrorAddress = TempAddress;
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REPORT_STATUS_CODE (EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED, PcdGet32 (PcdStatusCodeValueUncorrectableMemoryError));
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return EFI_DEVICE_ERROR;
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}
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TempAddress += SpanSize;
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}
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Done:
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return EFI_SUCCESS;
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}
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